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| Class Numbers & Titles | Class Numbers Only | USPC Index | International | HELP |
| You are viewing a USPC Schedule. |
| Class 400 | TYPEWRITING MACHINES |
| Click here for a printable version of this file | |
![]() | ![]() | 1 | INCLUDING JUSTIFICATION OR QUADDING OF PRINT-LINE |
![]() | ![]() | 2 | Including quadding of print-line |
![]() | ![]() | 3 | By programmed-control-system |
![]() | ![]() | 8 | By using "no-print" device |
![]() | ![]() | 9 | By interword or intercharacter spacing |
![]() | ![]() | 10 | Variable carriage-feed mechanism |
![]() | ![]() | 11 | Carriage slidable relative to its carriage-rack |
![]() | ![]() | 12 | By interword spacing only |
![]() | ![]() | 14 | By typing line on stretchable medium |
![]() | ![]() | 15 | Including justification indicator |
![]() | ![]() | 16 | FOR TYPING OR FORMING CONTINUOUS OR DISCONTINUOUS LINE (E.G., BY "LINER") |
![]() | ![]() | 17 | Including programmed-control-system |
![]() | ![]() | 18 | By scriber (e.g., pen, pencil, etc.) or with scriber guide |
![]() | ![]() | 21 | Responsive to carriage movement |
![]() | ![]() | 22 | Underscoring concurrently with character imprinting |
![]() | ![]() | 23 | FOR TYPING ON FLAT RECORD-MEDIUM OR AGAINST FLAT PLATEN |
![]() | ![]() | 24 | For typing on a book |
![]() | ![]() | 25 | Including a type-head (e.g., cylinder, disc, etc.) |
![]() | ![]() | 26 | Against cylindrical backing |
![]() | ![]() | 27 | Including adjustment of typewriter relative to book (e.g., to compensate for book thickness) |
![]() | ![]() | 28 | Including adjustment of book support relative to typewriter (e.g., for top or bottom of book, etc.) |
![]() | ![]() | 29 | For typing on flat blueprint or drawing (e.g., "platenless" typewriter) |
![]() | ![]() | 30 | For typing on carton or package |
![]() | ![]() | 31 | By multidirectional movement of typewriter structure (e.g., "Elliot-Fisher" structure) |
![]() | ![]() | 32 | Bottom-strike typewriter including type-bar action or bar platen or anvil platen |
![]() | ![]() | 33 | Top-strike typewriter including pivoted type-bar |
![]() | ![]() | 34 | Including carriage-return mechanism |
![]() | ![]() | 35 | Including case-shift by shifting platen |
![]() | ![]() | 36 | Including ribbon-feed mechanism |
![]() | ![]() | 37 | For typing on manifold set (e.g., with type-die, etc.) |
![]() | ![]() | 38 | Including feeding of wide carbon paper transverse to feed of record-medium |
![]() | ![]() | 39 | Including spool for roll of carbon paper |
![]() | ![]() | 40 | Including clamp or guide for carbon paper |
![]() | ![]() | 41 | Including adjustment of platen perpendicular to its surface |
![]() | ![]() | 42 | Including aligning and feeding manifold set |
![]() | ![]() | 43 | Including feed of tally strip |
![]() | ![]() | 44 | Including line-spacing mechanism |
![]() | ![]() | 45 | Platen shifted for line-spacing |
![]() | ![]() | 46 | Including adjustment of line-space distance or increment |
![]() | ![]() | 47 | Including disengagement of line-spacing mechanism |
![]() | ![]() | 48 | Work support (e.g, sheet or card holddown or guide, sheet-size platen, etc.) |
![]() | ![]() | 49 | Collating-table attachment |
![]() | ![]() | 50 | INCLUDING DELAY MEANS FOR PREVENTING MALFUNCTION IN POWERED TYPEWRITER |
![]() | ![]() | 51 | Delay of sequential character rate in programmed-control typewriter |
![]() | ![]() | 52 | Delay by storage of next character to be imprinted |
![]() | ![]() | 53 | INCLUDING ADJUSTMENT MEANS TO COMPENSATE FOR WEAR |
![]() | ![]() | 54 | SAFETY SWITCH OR CONDITION-RESPONSIVE-CUTOFF SWITCH FOR ELECTRICALLY POWERED TYPEWRITER |
![]() | ![]() | 55 | INCLUDING ADJUSTMENT FOR OPTIMUM PRINTING PLANE |
![]() | ![]() | 56 | Responsive to thickness of record-medium |
![]() | ![]() | 57 | In accordance with the number of sheets of record-medium |
![]() | ![]() | 58 | By adjustment of platen relative to carriage |
![]() | ![]() | 59 | By adjustment of carriage (e.g, carriage-guide rollers) |
![]() | ![]() | 61 | INCLUDING CONTROL OF FORMAT AND SELECTION OF TYPE-FACE BY PROGRAMMED CONTROL-SYSTEM (E.G., INPUT TYPEWRITER) |
![]() | ![]() | 62 | Including means for responding to input program or incoming signals and providing output program or signals representing typing operations (e.g., output typewriter) |
![]() | ![]() | 63 | Including editing or revision system |
![]() | ![]() | 64 | Including right-hand margin control system |
![]() | ![]() | 65 | Including typing of graphical representations |
![]() | ![]() | 66 | Including baseplate attachment with electromagnets for input or output operations |
![]() | ![]() | 67 | Separate interrelated programs |
![]() | ![]() | 69 | Type-face selection via magnetic program tape |
![]() | ![]() | 70 | INCLUDING SELECTION OF TYPE-FACE BY PROGRAMMED-CONTROL-SYSTEM OR BY REMOTE CONTROL |
![]() | ![]() | 71 | Plural typewriters coupled for simultaneous operation (e.g., "master-slave" relationship) |
![]() | ![]() | 72 | Including character-selection latches (e.g., for type-face selection) |
![]() | ![]() | 73 | Including particular reader structure and operation |
![]() | ![]() | 74 | Including error detection |
![]() | ![]() | 75 | Including type-bar selection using mechanical program |
![]() | ![]() | 76 | INCLUDING CONTROL OF FORMAT BY PROGRAMMED-CONTROL-SYSTEM |
![]() | ![]() | 77 | TYPEWRITER CONTROLS OTHER INFORMATION RECORDER |
![]() | ![]() | 78 | Typewriter controls apparatus used for accounting function |
![]() | ![]() | 80 | Typewriter (e.g, output typewriter) controls tape-punch or card-punch apparatus |
![]() | ![]() | 82 | INCLUDING PLURAL, INDEPENDENTLY SUPPORTED KEY-BOARDS, PLATENS, OR TYPE-SET ASSEMBLAGES |
![]() | ![]() | 83 | DISPLAYING TYPEWRITER-FORMED REPRESENTATION OF PRINT-LINE |
![]() | ![]() | 86 | OPERATING BY SOUND |
![]() | ![]() | 87 | FOR OPERATION BY HANDICAPPED USER |
![]() | ![]() | 88 | POCKET TYPEWRITER |
![]() | ![]() | 89 | KEY REASSIGNMENT |
![]() | ![]() | 91 | STENOGRAPHIC TYPEWRITER |
![]() | ![]() | 95 | LOGOTYPE TYPEWRITER (E.G., WORD TYPING) |
![]() | ![]() | 96 | Including date-stamp type-face |
![]() | ![]() | 97 | Including signature type-face |
![]() | ![]() | 98 | Actuation of single key types plural characters |
![]() | ![]() | 100 | PLURAL-KEY-ACTUATED TYPEWRITER (E.G., PERMUTATIVE KEY-BOARD) |
![]() | ![]() | 101 | Having type-faces disposed on pivotable type-bars |
![]() | ![]() | 102 | Having type-faces disposed on rotatable type-head |
![]() | ![]() | 103 | CODE-PRINTING TYPEWRITER (E.G., FOR PRINTING A PATTERN OR MARK) |
![]() | ![]() | 104 | For typing and encoding |
![]() | ![]() | 106 | Including coded ink (e.g., phosphorescent or color-coded ink, etc.) |
![]() | ![]() | 107 | For coding by conductive mark |
![]() | ![]() | 108 | For marking laundry |
![]() | ![]() | 109 | FOREIGN LANGUAGE OR BRAILLE TYPEWRITER |
![]() | ![]() | 112 | ANNULAR TYPEWRITER (E.G., FOR TYPING AROUND CIRCUMFERENCE OF PLATEN) |
![]() | ![]() | 113 | Including vertically disposed platen |
![]() | ![]() | 114 | Platen axis horizontal and extending front-to-rear |
![]() | ![]() | 115 | Powered Actuated |
![]() | ![]() | 116 | MUSIC-ROLL OR MUSICAL-NOTATION TYPEWRITER |
![]() | ![]() | 118.1 | TYPING BY HEATED DIE |
![]() | ![]() | 118.2 | TYPING BY OTHER THAN TYPE-FACE OR TYPE-DIE |
![]() | ![]() | 118.3 | Electroconductive transfer |
![]() | ![]() | 120.01 | Thermal |
![]() | ![]() | 120.02 | Multicolor |
![]() | ![]() | 120.03 | Having multilayered colored transfer material |
![]() | ![]() | 120.04 | Having single layer colored transfer material |
![]() | ![]() | 120.05 | Block driving |
![]() | ![]() | 120.07 | Gradational recording |
![]() | ![]() | 120.08 | Preheating |
![]() | ![]() | 120.09 | Density control |
![]() | ![]() | 120.1 | By number of heated recording elements |
![]() | ![]() | 120.11 | In accordance with output characteristic of recording elements |
![]() | ![]() | 120.12 | By voltage regulation |
![]() | ![]() | 120.13 | By transfer material or record receiver |
![]() | ![]() | 120.14 | In accordance with temperature of the recording means |
![]() | ![]() | 120.15 | By history of recording elements |
![]() | ![]() | 120.16 | Recording means support or actuator |
![]() | ![]() | 120.18 | Pre- or post-image recording treatment |
![]() | ![]() | 124.01 | Character formation by impact (e.g., wire matrix) |
![]() | ![]() | 124.02 | With signal conditioning |
![]() | ![]() | 124.03 | Overheat protection |
![]() | ![]() | 124.04 | Responsive to impact member position |
![]() | ![]() | 124.05 | Control of drive force |
![]() | ![]() | 124.07 | With wear or defect compensation |
![]() | ![]() | 124.08 | Plural printheads |
![]() | ![]() | 124.1 | With inking |
![]() | ![]() | 124.11 | Printhead |
![]() | ![]() | 124.12 | Having assembly means |
![]() | ![]() | 124.13 | Overheat protection |
![]() | ![]() | 124.14 | With actuator |
![]() | ![]() | 124.15 | Single actuator for simultaneous actuation of plural impact members |
![]() | ![]() | 124.16 | Electrostrictive, magnetostrictive, or piezoelectric |
![]() | ![]() | 124.17 | Actuator having electromagnet |
![]() | ![]() | 124.24 | Impact member guide |
![]() | ![]() | 124.28 | Impact member tip arrangement |
![]() | ![]() | 124.29 | Impact member structure |
![]() | ![]() | 127 | TYPING TO PRODUCE EMBOSSED CHARACTER |
![]() | ![]() | 128 | Character embossed or typed on nonplanar article (e.g., golf ball, toothbrush, etc.) |
![]() | ![]() | 129 | By type-die mounted on carrier movable for selection of character |
![]() | ![]() | 135 | TYPING TO PRODUCE PIERCED CHARACTER |
![]() | ![]() | 136 | Cutout character for stencil |
![]() | ![]() | 137 | Check-protection character |
![]() | ![]() | 139 | INCLUDING TYPE-SET-ASSEMBLAGE MOUNTED ON CARRIER AND RELATIVELY MOVABLE FOR SELECTION AND FOR IMPACT OF TYPE-FACE |
![]() | ![]() | 140 | Including type-faces movable relative to type-face-carrier |
![]() | ![]() | 141 | Slidable type-faces mounted on reciprocable carrier |
![]() | ![]() | 142 | Slidable type-faces on rotatable carrier |
![]() | ![]() | 143 | Rotatable type-face carrier including type-faces on pivotable arms |
![]() | ![]() | 144 | Type-face-carrier including type-faces on flexible arms |
![]() | ![]() | 145 | Type-faces on deformable type-face-carrier |
![]() | ![]() | 146 | Including endless-band carrier for type-faces |
![]() | ![]() | 147 | Type-faces arranged in rectilinear row and selected by reciprocable movement |
![]() | ![]() | 149 | Plural type-heads mounted for selective individual type-head-imprinting movement |
![]() | ![]() | 150 | Type-heads arranged for selective individual imprinting movement away from coaxial rest position |
![]() | ![]() | 151 | Turret carrier for type-heads |
![]() | ![]() | 152 | Type drum having multiple type-set-assemblages |
![]() | ![]() | 153 | Imprint by movement of record-medium against type-face |
![]() | ![]() | 154 | By hammer impacting record-medium against type-face on type-head (e.g., type shuttle, etc.) |
![]() | ![]() | 154.1 | Including selection of type-face |
![]() | ![]() | 154.2 | Via pulley and cord arrangement (e.g., summing displacements) |
![]() | ![]() | 154.3 | By shortest peripheral path |
![]() | ![]() | 154.4 | Via coded disc in electric or magnetic circuit (e.g, photoelectric) |
![]() | ![]() | 154.5 | Via stepping motor responsive to selection |
![]() | ![]() | 155 | Via electrical or electromagnetic means |
![]() | ![]() | 156 | Via helical arrangement of projections |
![]() | ![]() | 156.1 | Via mechanically permutated bar(s), disc(s), or plate(s) |
![]() | ![]() | 156.2 | Via planetary gear arrangement |
![]() | ![]() | 157 | Including type-faces arranged along helical path(s) |
![]() | ![]() | 157.1 | Including particular structure of hammer(s) |
![]() | ![]() | 158 | Including platen for moving record-medium against type-face and mechanism for feeding record-medium |
![]() | ![]() | 159 | Including platen for moving record-medium against type-face and mechanism for inking type-face |
![]() | ![]() | 160 | Imprint by pivoting of type-head-carrier and type-head against record-medium |
![]() | ![]() | 161 | Type-head-carrier movable on movable carriage |
![]() | ![]() | 162 | Type-head movable for selection of type-face |
![]() | ![]() | 162.1 | Via pulley and cord arrangement |
![]() | ![]() | 162.2 | Via shortest peripheral path |
![]() | ![]() | 162.3 | Via coded disc in electric or magnetic circuit (e.g., photoelectric) |
![]() | ![]() | 163 | Via stepping motor responsive to selection |
![]() | ![]() | 163.1 | Via electrical or electromagnetic means |
![]() | ![]() | 163.2 | Including electromagnetically actuated type-head movement toward record-medium |
![]() | ![]() | 163.3 | Including plural-function actuation by electromagnet(s) |
![]() | ![]() | 164 | Via helical arrangement of projections |
![]() | ![]() | 164.1 | Via pneumatic actuation |
![]() | ![]() | 164.2 | Via setting elements actuating selector-command member(s) |
![]() | ![]() | 164.3 | Control arm connected to selection gear and movable to engage key-lever actuated abutment |
![]() | ![]() | 164.4 | Via stop pins actuatable by key-board |
![]() | ![]() | 164.5 | Toothed member connected to selection gear and slidable by key-lever movement |
![]() | ![]() | 164.6 | Selection gear rotated by key-lever movement |
![]() | ![]() | 165 | Simultaneous rotation and translation of type-head by manually powered actuation (e.g., helical shift) |
![]() | ![]() | 165.1 | Via manually powered actuation other than by key-board (e.g, stylus selection) |
![]() | ![]() | 166 | Including impact control |
![]() | ![]() | 167 | Including rebound control |
![]() | ![]() | 168 | Articulated-support joint |
![]() | ![]() | 169 | Detenting to fix type-head for imprinting |
![]() | ![]() | 170 | Including movable printing anvil within type-head |
![]() | ![]() | 171 | Plural type-set-assemblages selectively movable from a storage station to a printing station |
![]() | ![]() | 172 | Type-faces mounted on type chips and removable from storage for printing |
![]() | ![]() | 173 | With means for exposing last-typed character |
![]() | ![]() | 174 | Type-head, per se |
![]() | ![]() | 176 | HAVING FLUID-PRESSURE POWER DRIVE |
![]() | ![]() | 177 | Including pneumatic decoder for perforated tape |
![]() | ![]() | 178 | For producing typewriter-control tape (e.g., perforated tape, etc.) |
![]() | ![]() | 179 | For type-face selection or choice |
![]() | ![]() | 180 | Including key-board driven by external pneumatic source |
![]() | ![]() | 181 | By pneumatic actuation of type-face or type-bar |
![]() | ![]() | 182 | For movement of carriage or platen |
![]() | ![]() | 184 | HAVING TYPEWRITER-CONTROLLED RECIPROCABLE ELECTROMAGNETIC DRIVE FOR PLURAL FUNCTIONS IN SAME TYPEWRITER |
![]() | ![]() | 185 | HAVING POWER-DRIVEN OPERATOR FOR PLURAL FUNCTIONS |
![]() | ![]() | 186 | Via continuously rotated power roll selectively connected to operate |
![]() | ![]() | 187 | Usable selectively (e.g., for powered or manual operation, alternative usable functions, etc.) |
![]() | ![]() | 188 | FOR TYPING ON REVERSE SURFACE OF RECORD-MEDIUM |
![]() | ![]() | 191 | INCLUDING INTERPOSED INKING DEVICE (E.G., RIBBON) FOR RECORD-MEDIUM |
![]() | ![]() | 192 | Moved by continuously rotating power drive intermittently applied |
![]() | ![]() | 193 | Inking device handheld during typing |
![]() | ![]() | 194 | Endless ribbon or cartridge therefor |
![]() | ![]() | 197 | Renovation of used ribbon |
![]() | ![]() | 198 | With ink heater (e.g., for melting solid ink) |
![]() | ![]() | 199 | By discrete auxiliary band movable with ribbon |
![]() | ![]() | 200 | Selectively actuatable re-inker |
![]() | ![]() | 201 | Of multicolor ribbon |
![]() | ![]() | 202 | Renovator attachable to typewriter for replenishing ribbon ink |
![]() | ![]() | 203 | Ribbon disposed within platen |
![]() | ![]() | 204 | For typing plural copies simultaneously with ribbon(s) (e.g., duplicate typing) |
![]() | ![]() | 205 | Including holder for short length of ribbon |
![]() | ![]() | 206 | Using plural ribbons (e.g., additional ribbon(s) |
![]() | ![]() | 207 | Package for ribbon facilitating mounting of ribbon on typewriter (e.g., ribbon cartridge) |
![]() | ![]() | 209 | For bottom-strike typewriter |
![]() | ![]() | 210 | For boldface typing |
![]() | ![]() | 211 | Including mechanism for shifting ribbon laterally at print-point |
![]() | ![]() | 212 | Via electrically powered actuator |
![]() | ![]() | 213 | For impact of successive type-faces on one field of ribbon in path not parallel to longitudinal extent of ribbon (e.g., "zigzag", oblique, etc.) |
![]() | ![]() | 214 | Plural ribbons shiftable laterally (e.g., by duplicate vibrators) |
![]() | ![]() | 215 | By ribbon vibrator |
![]() | ![]() | 215.1 | Including vibrator shiftable during use of nonfeed character key (e.g., for typing accent mark, etc.) |
![]() | ![]() | 215.2 | With retardation of vibrator return after type-face impact (e.g., with dashpot) |
![]() | ![]() | 215.3 | With elevation and holding of vibrator above print-point (e.g., to facilitate ribbon insertion) |
![]() | ![]() | 215.4 | With inactivation of vibrator (e.g., for cutting a stencil) |
![]() | ![]() | 216 | Including variable throw of vibrator |
![]() | ![]() | 217 | To shift impact path (e.g., during ribbon reversal) |
![]() | ![]() | 218 | Ribbon-reversing mechanism |
![]() | ![]() | 219 | Including means responsive to depletion of ribbon supply |
![]() | ![]() | 219.1 | Including an electric switch |
![]() | ![]() | 219.2 | Including lever retained in spool by wound ribbon |
![]() | ![]() | 219.3 | Including senser for diameter of wound ribbon |
![]() | ![]() | 219.5 | Including projection from ribbon |
![]() | ![]() | 220 | Alternative pawl-and-ratchet drive including ratchet directly connected to spool or spindle |
![]() | ![]() | 220.1 | Including a common pawl member (e.g.. double-toothed pawl) |
![]() | ![]() | 220.2 | Including member interposed in pawl drive path |
![]() | ![]() | 221 | Alternative gear drive including gear directly connected to spool or spindle |
![]() | ![]() | 221.1 | And gears mounted on ends of axially shiftable common shaft |
![]() | ![]() | 221.2 | And gears mounted on ends of pivoted common shaft |
![]() | ![]() | 222 | Alternative clutch drive including clutch member directly connected to spool or spindle |
![]() | ![]() | 223 | Ribbon-feeding mechanism |
![]() | ![]() | 224 | For feeding ribbon angularly to print-line at print-point |
![]() | ![]() | 225 | Including electrically powered drive means (e.g., solenoid, stepping motor, etc.) |
![]() | ![]() | 226 | For feeding ribbon partial character-space before impact and partial character-space after impact |
![]() | ![]() | 227 | For narrow carbon ribbon (e.g., carbon ink, "single use", etc.) |
![]() | ![]() | 228 | Including pin-feed-engaging ribbon |
![]() | ![]() | 229 | Mounted with movable type-face-carrier or type-head-carrier |
![]() | ![]() | 230 | With fast rewind of ribbon |
![]() | ![]() | 231 | With prevention of ribbon feed (e.g., for nontype operation, etc.) |
![]() | ![]() | 232 | Including feed at particular feed rate (e.g., "creep" feed) |
![]() | ![]() | 233 | Ribbon feed from supply only during carriage return |
![]() | ![]() | 234 | Including ribbon tensioner |
![]() | ![]() | 235 | Drive applied by means directly engaging ribbon in advance of takeup |
![]() | ![]() | 236 | Drive applied directly to spool or spool spindle |
![]() | ![]() | 237 | Ribbon, per se |
![]() | ![]() | 238 | Having leader portion (e.g., for threading, etc.) |
![]() | ![]() | 239 | With ribbon-reversing indicator or device on ribbon |
![]() | ![]() | 240 | Including differently pigmented fields |
![]() | ![]() | 240.1 | Including correction-material field |
![]() | ![]() | 240.2 | With prevention of bleeding between adjacent fields |
![]() | ![]() | 240.3 | Including fields arranged transversely to elongated dimension of ribbon |
![]() | ![]() | 240.4 | Including more than two fields |
![]() | ![]() | 241 | Particular ribbon material |
![]() | ![]() | 242 | Ribbon spool or mount therefor |
![]() | ![]() | 243 | Universally adaptable |
![]() | ![]() | 244 | Including ribbon-reversing indicator or device on spool or mount |
![]() | ![]() | 245 | Including magnetic retainer |
![]() | ![]() | 246 | Spool for full-page-wide ribbon |
![]() | ![]() | 247 | Means auxiliary to ribbon mechanism (e.g., shield, guide, etc.) |
![]() | ![]() | 251 | CASE-SHIFT MECHANISM |
![]() | ![]() | 252 | Including programmed-control-system |
![]() | ![]() | 253 | Including electronic control or code-bar control |
![]() | ![]() | 254 | Controlled by typewriter-actuated mechanism |
![]() | ![]() | 255 | Including plural case-shift mechanisms (e.g., for simultaneous or selective use) |
![]() | ![]() | 256 | Actuated by toggle-linkage |
![]() | ![]() | 257 | For case-shift by type-head (e.g., spherical type-head) movement |
![]() | ![]() | 258 | Power-operated mechanism (e.g., for locking shift key) |
![]() | ![]() | 261 | Multiple-shift mechanism (i.e., for type-bar having three or more type faces thereon) |
![]() | ![]() | 264 | For shifting platen |
![]() | ![]() | 265 | Fore-and-aft (e.g., for top-strike or bottom-strike typewriter) |
![]() | ![]() | 266 | Mounted on pivotally movable platen carrier |
![]() | ![]() | 266.1 | With movement of platen out of typing position |
![]() | ![]() | 266.2 | Including adjustable counterbalance spring |
![]() | ![]() | 266.3 | Including a yieldable link (e.g., spring, etc.) |
![]() | ![]() | 267 | By depression of space-bar |
![]() | ![]() | 268 | For shifting type-face or type-bar |
![]() | ![]() | 269 | By shifting type-bar or type-face on type-bar |
![]() | ![]() | 270 | Mounted on type-bar support (e.g., guide pin, type-bar-segment, etc.) |
![]() | ![]() | 271 | By choosing from one of a plurality of type-bars operated by a single key |
![]() | ![]() | 272 | Including key attachment for case-shift |
![]() | ![]() | 274 | For locking case-shift mechanism in position (e.g., rebound lock, cam, etc.) |
![]() | ![]() | 275 | For locking platen in fore-and-aft position (e.g., by overcenter spring, etc.) |
![]() | ![]() | 276 | For locking shift-key lever in depressed position |
![]() | ![]() | 277 | Including limit stop (e.g., block, chain, etc.) |
![]() | ![]() | 279 | CONTROL OF PRINT POSITION ALONG PRINT-LINE BY SIGNAL GENERATED BY PROGRAMMED-CONTROL-SYSTEM |
![]() | ![]() | 283 | CARRIAGE OR CARRIAGE-MOVING OR MOVEMENT-REGULATING MECHANISM |
![]() | ![]() | 284 | For stopping carriage in tabular position (e.g., column-set positions) |
![]() | ![]() | 285 | In denominational positions |
![]() | ![]() | 285.1 | And column-set positions |
![]() | ![]() | 285.4 | With control of zero or space for decimal point |
![]() | ![]() | 285.5 | With reverse-direction movement of carriage |
![]() | ![]() | 285.6 | Helically mounted denominational-stop(s) |
![]() | ![]() | 286 | Shiftable denominational-stop(s) |
![]() | ![]() | 286.3 | With latch or lock means |
![]() | ![]() | 287 | Column set by control of mutilated carriage-rack |
![]() | ![]() | 288 | Column set by control of tab-rack |
![]() | ![]() | 289 | Column set by control of tap-stops or column-stops or counter-stops |
![]() | ![]() | 290 | Forward or reverse tabulation |
![]() | ![]() | 291 | With impact cushion or rebound check |
![]() | ![]() | 292 | With control of carriage velocity |
![]() | ![]() | 293 | By multiple-pitch tab-racks or multilated gear |
![]() | ![]() | 294 | Stop-setting or stop-clearing mechanism |
![]() | ![]() | 294.1 | With stop magazine (i.e., for supply of stops) |
![]() | ![]() | 294.2 | With key-locking mechanism |
![]() | ![]() | 294.3 | Drum-mounted tab-stops |
![]() | ![]() | 295 | Stop setting by linear shift of tab-stop or counter-stop |
![]() | ![]() | 296 | Stop setting by movement of tab-rack |
![]() | ![]() | 297 | Stop setting by partial rotation of tab stop relative to tab-rack |
![]() | ![]() | 297.1 | Stop setting by pivoting pawllike stop |
![]() | ![]() | 298 | Tab-stop or tab-rack structure, per se |
![]() | ![]() | 299 | With rotatable type wheel for repeat printing in response to carriage movement |
![]() | ![]() | 300 | Key-actuated mechanism for nonfeed of carriage (e.g., "silent" key, locking carriage, etc.) |
![]() | ![]() | 303 | For varying carriage feed |
![]() | ![]() | 304 | For kerning or overlap imprinting |
![]() | ![]() | 305 | By force-feed or screw-feed mechanism |
![]() | ![]() | 306 | Proportional to variable widths of imprinted characters |
![]() | ![]() | 308 | Carriage backspace mechanism |
![]() | ![]() | 309 | Backspace proportional to variable width of imprinted characters |
![]() | ![]() | 310 | Including powered drive means |
![]() | ![]() | 311 | Including pawl and escapement wheel |
![]() | ![]() | 312 | Including pawl and escapement rack |
![]() | ![]() | 313 | Carriage-return mechanism |
![]() | ![]() | 314 | With concurrent line-spacing |
![]() | ![]() | 314.1 | Using electromagnetic drive |
![]() | ![]() | 314.2 | For selected number of line-spaces |
![]() | ![]() | 314.3 | With disconnection of return by margin-stop |
![]() | ![]() | 314.4 | Initiated by user's leg or foot |
![]() | ![]() | 314.5 | Initiated by actuator adjacent key-board |
![]() | ![]() | 314.6 | By return-clutch means |
![]() | ![]() | 315 | Responsive to carriage position |
![]() | ![]() | 316 | Partial return (e.g., for start of paragraph, etc.) |
![]() | ![]() | 317 | Including power drive (e.g., electric, spring, etc.) |
![]() | ![]() | 318 | Initiated by actuator adjacent key-board |
![]() | ![]() | 319 | Carriage-feed mechanism (e.g., escapement, etc.) |
![]() | ![]() | 320 | For carriage on which a type-head-carrier is mounted |
![]() | ![]() | 321 | With repeat spacing |
![]() | ![]() | 322 | By electric or magnetic power |
![]() | ![]() | 323 | Carriage-feed in two directions (e.g., continuous typing in both directions) |
![]() | ![]() | 324 | Word-space concurrent with typing of last character of word |
![]() | ![]() | 325 | By space-bar mechanism (e.g., separate connection to escapement) or paragraph-indentation key |
![]() | ![]() | 326 | With compensator for tilt of typewriter |
![]() | ![]() | 327 | For diagonal print-line |
![]() | ![]() | 328 | By force-feed or screw mechanism (e.g., direct drive, screw-biasing carriage, etc.) |
![]() | ![]() | 329 | Carriage escapement controlled by pawl |
![]() | ![]() | 329.1 | Means to ensure engagement of pawl at start of print-line (i.e., overbanking control) |
![]() | ![]() | 329.2 | Carriage-feed initiated and completed during depression of character key (e.g., "speed" or "reverse" escapement) |
![]() | ![]() | 329.3 | Pawl rocker spring regulating device |
![]() | ![]() | 330 | Via ratchet wheel connected to pinion and carriage-rack |