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CLASS 346,	RECORDERS
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SECTION I - CLASS DEFINITION

This is generic class for apparatus and corresponding processes for:

A. Making a record of the movements of machines or instruments whose movements are desired to be recorded and at least temporarily preserved.

B. Making a record of any phenomenon capable of being detected either quantitatively or qualitatively and recorded for at least temporary preservation:

The preceding in general require (a) the means to make the record, (b) the means to detect qualitatively or quantitatively the movement or other phenomenon, and (c) the means actuated in accordance with the movement or other phenomenon to cause the record making means to function.

C. The record making means and its immediate actuating means as a subcombination of (A) and (B).

D. Watchmen"s and workmen"s time-recorders and time stamps.

This class also includes compartmented boxes adapted to receiving checks, means being provided either for manual operation or for clock work to shift a part so that a check will be received in a selected compartment. See Subclass References to the Current Class, below, identified as other classes for record-making.

SECTION II - SUBCLASS REFERENCES TO THE CURRENT CLASS

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SECTION III - REFERENCES TO OTHER CLASSES

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SUBCLASSES

2	ANGLE MEASUREMENT RECORDER FOR OPTICAL INSTRUMENTS
	Recorders forming part of a sextant, theodolite or other optical angle measuring device to record the observed angle. SEE OR SEARCH CLASS: 356,  Optics: Measuring and Testing,   subclasses 138+ for angle measuring devices.

3	PERFORMANCE OF MULTIPLE FUNCTIONS OF STEAM AND GAS ENGINES
	Recorders which exhibit the performance of a steam, gasoline or other expansible gas engine in terms of multiple parts of the engine or of a part operative in synchronism with the engine, i.e., one function of the engine (e.g., spark) should be plotted against another function of the engine (e.g., shaft rotation). SEE OR SEARCH THIS CLASS, SUBCLASS: 45+, for other plural function recorders. SEE OR SEARCH CLASS: 73,  Measuring and Testing,   subclass 115 for apparatus for testing engine performance or efficiency having means to record.

4	Pressure responsive element
	This subclass is indented under subclass 3.  Recorders of the type specified in ... in which one element of the recorder is responsive to pressure existing within the engine cylinder. (1) Note. Many of the indicators in this subclass use a long traveling paper web, upon which a time graph is drawn as paper is reeled past recording stylus. SEE OR SEARCH THIS CLASS, SUBCLASS: 72, for recorders having a marker responsive to the expansion of a chamber. SEE OR SEARCH CLASS: 73,  Measuring and Testing,   subclasses 700+ for fluid pressure gauges, particularly subclass 712 for recording type.

5	Drum recorder
	This subclass is indented under subclass 4.  Recorders of the type specified in ... in which the record is made on a rotatable or oscillatable cylinder about which is wrapped a web sufficiently long to be wrapped but once therearound. SEE OR SEARCH THIS CLASS, SUBCLASS: 138, and see the notes thereto for other recorders having drum type receivers.

6	Bourdon tube marker element
	This subclass is indented under subclass 5.  Recorders of the type specified in ... in which a Bourdon tube is utilized to drive the marker element of the recorder. SEE OR SEARCH CLASS: 73,  Measuring and Testing,   subclasses 741+ for Bourdon fluid pressure gauges. 92,  Expansible Chamber Devices,   appropriate subclasses for an expansible chamber device, per se.

7	RECORD TRACER MOVEMENT RESPONSIVE TO INERTIA OR MASS INCLINATION
	Recorders having a record tracer portion operative upon a record receiver, said tracer portion being responsive to the motion of a tine of a tuning fork, or to the change in inclination of a body carrying a pendulous mass or to the displacement of a mass due to shocks or accelerations. SEE OR SEARCH CLASS: 33,  Geometrical Instruments,   subclasses 308+ for pendulum directed recorders utilized in indicating borehole inclination and subclass 331 for direction sensing and indicating devices utilizing a recorder. 73,  Measuring and Testing,   subclasses 570+ for a test of vibration, or involving vibration of the test specimen; subclass 489 for an accelerometer with recording means; and subclasses 514+ for an accelerometer, per se. 84,  Music,   subclass 457 for tuning forks. 181,  Acoustics,   subclass 122 for mechanical seismographs. 324,  Electricity: Measuring and Testing,   subclass 162 for electrical accelerometers. 367,  Communications, Electrical: Acoustic Wave Systems and Devices,   subclasses 14+ for electrical seismographs.

8	COURSE
	Recorders responsive to the direction assumed by a translating member to record either the direction assumed by that member or the rectangular components of direction assumed by that member. These recorders are usually mounted on a transporting member and are responsive to extent of motion of that member as well as to direction assumed by that member and the recorder may be associated with sundry other devices such as compasses, signals and time stamps. Included are devices that record deviation (i.e., left or right) from a set course, rudder position, steering wheel position, etc. SEE OR SEARCH CLASS: 33,  Geometrical Instruments,   subclasses 775+ for means for measuring distance by means of a rolling contact. 40,  Card, Picture, or Sign Exhibiting,   subclasses 482+ for means for automatically moving a sign or map in accordance with the rotation of an axle. 73,  Measuring and Testing,   subclasses 178+ for navigating instruments particularly 181+ for recording ships" logs. 434,  Education and Demonstration,   subclass 47 for aircraft trainers combined with recorders or for such recorders, per se, when particularly adapted for making a record of the operation of such trainers.

9	WEIGHT RECORDERS, BY PRINTING OR PERFORATING
	Recorders of the printing or perforating type having a part positioned in response to the position of a weighing member. SEE OR SEARCH THIS CLASS, SUBCLASS: 40, for recorders operated by the weight of an individual or object thereon or passing thereover. 78+, and see the notes thereto for other print, dotting or punching markers. SEE OR SEARCH CLASS: 177,  Weighing Scales,   subclasses 2+ for a recording weigher.

10	Recording directly from weight positioned member
	This subclass is indented under subclass 9.  Recorders of the type in which the part positioned in response to the position of the weighing member is geared to the load bearing member and is a part of the recording means.

11	Weight positioned member and independently movable record controlling followup element
	This subclass is indented under subclass 9.  Recorders of the type in which a recorder controlling element is movable independently of the weight responsive member and in which the weight responsive member exercises a control over the recorder control element or the recording mechanism associated therewith to cause proportional motion. SEE OR SEARCH THIS CLASS, SUBCLASS: 9, for recorder elements which are merely positioned manually opposite a weight responsive indicator and in which no control is exercised by the indicator, or parts movable therewith. 31, for recorders with follow ups.

12	Coaxial member and element
	This subclass is indented under subclass 11.  Recorders of the type in which the recorder controlling element moves about the same axis as the weight responsive member or co-linearly therewith.

13	COMBINED WITH NON-RECORDING INTEGRATOR
	Recorders combined with means, other than the necessary elements to make a record, to integrate two or more quantities, the result of the integration being indicated but not recorded. SEE OR SEARCH CLASS: 235,  Registers,   for integrators, per se.

14	COMBINED WITH NON-RECORDING REGISTER
	Recorders combined with means, other than the necessary elements to make a record, to register the number of occurrences of a phenomenon. Included herein are combinations of recorders with electric meters and the like. SEE OR SEARCH CLASS: 235,  Registers,   subclasses 2+ for combined cash registers and recorders, subclasses 4+ for cash recorders subclass 50 for recording voting machines and subclasses 58+ for calculators having means to record either or both the factors entered or the result, and other appropriate subclasses for nonrecording registers.

15	Fare register
	Marking recorders combined with fare or passenger registers. SEE OR SEARCH THIS CLASS, SUBCLASS: 97, for fare or passenger register character recording by dotting, printing or punching. SEE OR SEARCH CLASS: 235,  Registers,   subclass 33 for fare registers, per se.

16	And indicator or alarm
	This subclass is indented under subclass 15.  Recorders of the type combined with a nonrecording indicator or alarm mechanism. SEE OR SEARCH THIS CLASS, SUBCLASS: 17, for nonrecording indicator or alarm in other combinations. SEE OR SEARCH CLASS: 116,  Signals and Indicators,   for pertinent subclass (es) as determined by schedule rewiew. 340,  Communications: Electrical,   appropriate subclasses for miscellaneous electrical signaling systems and signals.

17	COMBINED WITH NON-RECORDING INDICATOR OR ALARM
	This subclass is indented under subclass 16.  Recorders combined with a nonrecording indicator or alarm not already provided for in ... . SEE OR SEARCH THIS CLASS, SUBCLASS: 16, for nonrecording indicator or alarm combined with a nonrecording fare register. SEE OR SEARCH CLASS: 116,  Signals and Indicators,   for pertinent subclass (es) as determined by schedule rewiew 340,  Communications: Electrical,   appropriate subclasses for miscellaneous electric signaling systems or signals.

18	Speed indicator or alarm
	This subclass is indented under subclass 17.  Recorders of the type in which the nonrecording indicator or alarm is speed responsive. SEE OR SEARCH THIS CLASS, SUBCLASS: 150.1, for centrifugal governor responsive markers. SEE OR SEARCH CLASS: 73,  Measuring and Testing,   subclass 489 for recorders with a speed or acceleration indicator. See (3) Note in the class definition of Class 346 for the line with Class 73. 74,  Machine Element or Mechanism,   subclass 12 for means to take off power from a main power line to operate speedometers. 116,  Signals and Indicators,   subclasses 37+ , 57, 62.1+, and 74 for signals and alarms that are speed actuated. 324,  Electricity: Measuring and Testing,   subclasses 160+ for electrical speed measuring and indicating. 340,  Communications: Electrical,   subclasses 670+ for electric signaling or alarm systems automatically responsive to speed.

19	COMBINED WITH AUTOGRAPHIC APPARATUS
	Recorders combined with other means whereby a second record may be made on a record receiver by means of a freely movable implement, which implement is a unit normally independent of the recorder and which implement is solely under control of an operator, except that the recorder is provided with an opening over the record receiver to delimit the area in which said second record may be made. SEE OR SEARCH THIS CLASS, SUBCLASS: 26, for autograph as sole record. SEE OR SEARCH CLASS: 281,  Books, Strips, and Leaves,   for pertinent subclass(es) as determined by schedule rewiew 462,  Books, Strips, and Leaves, for Manifolding,   for pertinent subclass(es) as determined by schedule review.

20	COMBINED WITH CLOCK
	Recorders combined with clock mechanism in which there are time scale and indicator means. SEE OR SEARCH THIS CLASS, SUBCLASS: 26, for time driven recorder elements with autograph as sole record. 30, for time driven recorder elements also driven by a second factor. 53, for time recording, where a second function is also recorded on the same record receiver by a second marker, the markers being under control of an element normally unconnected with the apparatus (e.g., a key), a marker being of the dotting, printing or punching type. 55, for time driven record receiving element, where two or more functions are recorded thereon by markers under control of an element normally unconnected with the apparatus (e.g., a key), a marker being of the dotting, printing or punching type. 57, for time driven record receiving element, where two or more functions are recorded thereon, where an element normally disconnected from the apparatus is used to make a printing, dotting or punching mark on the receiving element. 58, for time recording, where second function is recorded by second marker on same receiver, where an element normally disconnected from the apparatus is used to make a dotting, printing or punching mark on the receiver. 59+, for time recording, where a second function is recorded on the same receiver, dotting, printing, or punching markers being used. 64, for time driven record receiver, where a single marker records two or more functions, the marker being controlled by an element normally unconnected with the apparatus. 80+, for time recording utilizing a dotting, printing or punching marker. 86, for time controlled mechanism, used to shift a holder for a separate record receiver card so that when the card is inserted in the machine at different times, superimposed dotting, printing or punching records are avoided. 114+, for time driven record receiving web, there being a "writer" type marker. 115, for time driven "writer" type marker, with time driven record receiving web. 121+, for time driven record receiving disc, there being a "writer" type marker. 127+, for time driven record receiving drum, there being a "writer" type marker. 142, for hand time stamps.

21	COMBINED WITH RECORD DELETING MEANS
	Recorders provided with means to delete the record. SEE OR SEARCH CLASS: 510,  Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions,   subclass 174 for compositions for removing ink or writing fluid markings, such as ink eradicators.

22	COMBINED WITH RECORD RECEIVER DEPOSIT RECEPTACLE OR RECORD RECEIVER THROUGH CHUTE
	Recorders provided either with deposit receptacles to receive individual units of a record or units on which records are made or with a chute through which the record receiver passes from mouth to exit opening, a record being made in the interim. SEE OR SEARCH THIS CLASS, SUBCLASS: 27, for selective compartments to receive checks. 48, for plural record receivers in a magazine, with mechanism for moving one to a position to receive a record. SEE OR SEARCH CLASS: 232,  Deposit and Collection Receptacles,   for pertinent subclass (es) as determined by schedule rewiew.

23	COMBINED WITH FIDUCIAL LINE MAKING
	Recorders combined with means to make a reference line on the record receiver.

24	COMBINED WITH RECORD RECEIVER SEVERER
	Recorders combined with means to sever or facilitate severing of the completed record from the supply of record receiving material. SEE OR SEARCH CLASS: 83,  Cutting,   appropriate subclasses for the severing subcombination. 225,  Severing by Tearing or Breaking,   appropriate subclasses for the record tearing subcombination. 242,  Winding, Tensioning, or Guiding,   subclasses 522+ for cutting elongated material and subsequent convolute winding.

25	COMBINED WITH OTHER NON-RECORDING DEVICES
	Recorders combined with nonrecording devices other than those provided for in preceding subclasses. SEE OR SEARCH THIS CLASS, SUBCLASS: 33+, for recorders combined with means the functioning of which is to be recorded.

26	AUTOGRAPH AS SOLE RECORD, TIME DRIVEN ELEMENT
	Recorders wherein there is a record receiver utilizing a time driven element to receive a mark, or wherein a time driven element is utilized to control the application of a mark to the record receiver, with which receiver is adapted to cooperate an implement, normally independent of the recorder, and which implement is solely under control of an operator except that the recorder is provided with an opening over the record receiver to delimit the area in which a record may be made. SEE OR SEARCH THIS CLASS, SUBCLASS: 19, for autograph recording combined with other recording. 20, and see the notes thereto for timing subclasses in this class. SEE OR SEARCH CLASS: 281,  Books, Strips, and Leaves,   for pertinent subclass (es) as determined by schedule rewiew 462,  Books, Strips, and Leaves, for Manifolding,   for pertinent subclass(es) as determined by schedule review.

27	CHECK RECEIVERS, SELECTIVE COMPARTMENT
	Compartmented boxes adapted to receive checks, means being provided either by manual operation or by clockwork to shift a part so that checks will be received in successive compartments. (1) Note. For the most part there is a recorder as part of the combination. SEE OR SEARCH THIS CLASS, SUBCLASS: 22, for record receiver deposit receptacles. 48, for record receiver magazine and means for moving a receiver to a position to receive a mark.

28	EXTENT OF WEB ADVANCE AS SOLE MEASURE OF FUNCTION
	Recorders wherein the sole means for obtaining the record of a function is determined by the length of a web advanced at a rate proportioned to the function. The web may have preprinted indicia thereon. SEE OR SEARCH THIS CLASS, SUBCLASS: 136, and see the notes thereto for other web subclasses.

29	MULTIFACTOR-DRIVEN RECORDER ELEMENT
	Recorders wherein one of the recording elements is responsive, concurrently to two or more functions, such as amperes and volts or kva, or kw. or fuel consumption and quantity of steam produced, or two pressures. SEE OR SEARCH THIS CLASS, SUBCLASS: 3+, for recording plural functions of steam and gas engines. 45+, for making records of two or more functions, which records may be distinguished from each other, particularly subclasses 62+, where a single marker and single record receiver are involved.

30	Time factor
	This subclass is indented under subclass 29.  Recorders of the type wherein one of the functions is time. There may be more than two functions controlling the motion of the recording element. SEE OR SEARCH THIS CLASS, SUBCLASS: 20, and see the notes thereto for timing subclasses in this class.

31	FOLLOW-UP
	Recorder mechanisms in which there is a function responsive element, a recorder controlling element, and a recorder element controlled thereby, said controlling element being movable by means independent of the means employed for controlling the function responsive element, and in which the controlling element assumes a position determined by the condition of the function responsive element. SEE OR SEARCH THIS CLASS, SUBCLASS: 11, for weight responsive members with mechanism to control a movable recorder element to cause proportional motion. 32, for rebalancing systems. SEE OR SEARCH CLASS: 74,  Machine Element or Mechanism,   subclass 388 for follow-up gearing. 91,  Motors: Expansible Chamber Type,   subclasses 358+ for expansible chamber motors having working member position feedback control. 114,  Ships,   subclass 144 for follow-up ship steering. 236,  Automatic Temperature and Humidity Regulation,   subclasses 74+ for regulating systems having electrical follow-ups. 244,  Aeronautics and Astronautics,   subclasses 76+ for follow-up aircraft steering. 303,  Fluid-Pressure and Analogous Brake System,   subclass 54 for follow-up fluid pressure brake valves. 318,  Electricity: Motive Power Systems,   subclasses 560+ for electric motor servomechanisms. 340,  Communications: Electrical,   subclass 870.43 for telemetric systems having follow up.

32	REBALANCING SYSTEMS
	Recorder mechanism embodying a function responsive element which moves in either of two opposite directions from a normal or balanced position in accordance with the change in the function and which controls the movement of a mechanism to restore or rebalance the element to its normal position, the mechanism in its restoring operation effecting the shifting of a recorder element. SEE OR SEARCH THIS CLASS, SUBCLASS: 31, for follow-up systems and see the notes thereto.

33	COMBINED WITH EXTERNAL RECORDER OPERATING MEANS
	Recorders combined with the means the functioning of which is recorded. (1) Note. Where a functioning means is claimed broadly as operating a specific recorder, the patents are classified in an appropriate subclass in this class and which subclass includes the structure of the specific recorder. (2) Note. Where both the functioning means and the recorder are claimed broadly or where modifications of the functioning means are claimed to adapt it to its recording operation or where specific interconnecting structure between the functioning means and the recorder are claimed, the patents are classified in this and in indented subclasses. (3) Note. For the most part, art devices significantly claimed combined with means to record one or more aspects of the operation thereof, are classified with the art device, see the notes to the class definition. SEE OR SEARCH THIS CLASS, SUBCLASS: 25, and preceding subclasses for recorders combined with nonrecording devices. 72, for float or expansible chamber operated recorders. 73, for centrifugal governor operated recorders. SEE OR SEARCH CLASS: 73,  Measuring and Testing,   subclasses 152.02+ for a process or an apparatus for borehole formation logging wherein the logging is not a purely electrical or a purely magnetic test and subclass 152.62 for a combination of a recorder and an apparatus for testing a pump for use in a borehole test or a drilling test wherein the test is not a purely electrical or a purely magnetic test. 374,  Thermal Measuring and Testing,   subclass 186 for recording thermometers having significantly claimed measuring and recording features.