1. CPC Sections
  2. CPC Section B
  3. CPC Class B66
  4. CPC Subclass B66D
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Version: 2024.08
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CPC
COOPERATIVE PATENT CLASSIFICATION
​​
B66D
CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS (winding or unwinding ropes or cables for feeding or storage purposes B65H; rope or cable winding or unwinding mechanisms for lifts B66B) [2022-08]
NOTE

  • This subclass covers:
    • rope, cable or chain winding or unwinding mechanisms for moving all loads except lift cages, e.g. winches for dredges;
    • braking or detent devices characterised by their application for retarding or preventing rotary movement of a winding drum or barrel
WARNINGS


  • The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups:
    B66D1/395 covered by B66D 1/36, B66D 1/50
  • In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.
B66D 1/00
Rope, cable, or chain winding mechanisms; Capstans (portable or mobile lifting or hauling appliances B66D 3/00) [2013-01]
B66D 1/005
.
{Attaching winches to vehicle wheels} [2013-01]
B66D 1/02
.
Driving gear [2013-01]
B66D 1/04
. .
manually operated [2013-01]
B66D 1/06
. . .
Safety cranks for preventing unwanted crank rotation and subsequent lowering of the loads [2013-01]
B66D 1/08
. .
incorporating fluid motors [2013-01]
B66D 1/10
. . .
Steam driving gear [2013-01]
B66D 1/12
. .
incorporating electric motors [2013-01]
B66D 1/14
. .
Power transmissions between power sources and drums or barrels {(including brakes, one-way brakes, one-way clutches, clutches activated alternately with brakes, fixed ratio gearing unless otherwise provided for in B66D 1/16 - B66D 1/24)} [2016-05]
B66D 1/16
. . .
the drums or barrels being freely rotatable {, e.g. having a clutch activated independently of a brake (B66D 1/20, B66D 1/22, B66D 1/24 take precedence; clutches activated alternately with brakes B66D 1/14, slip couplings B66D 1/14)} [2016-08]
B66D 1/18
. . . .
and the power being transmitted from a continuously operating and irreversible prime mover {, i.e. an internal combustion engine, e.g. on a motor vehicle or a portable winch} [2016-08]
B66D 1/20
. . .
Chain, belt, or friction drives, e.g. incorporating sheaves {of fixed or variable ratio} [2013-01]
B66D 1/22
. . .
Planetary or differential gearings (for actuating grab buckets B66D 1/70 ){, i.e. with planet gears having movable axes of rotation} [2016-08]
B66D 1/225
. . . .
{variable ratio or reversing gearing (fixed ratio gearing B66D 1/22)} [2013-01]
B66D 1/24
. . .
for varying speed or reversing direction of rotation of drums or barrels {, i.e. variable ratio or reversing gearing (B66D 1/225 takes precedence)} [2016-08]
B66D 1/26
.
having several drums or barrels [2013-01]
B66D 1/28
.
Other constructional details [2013-01]
B66D 1/30
. .
Rope, cable, or chain drums or barrels [2013-01]
B66D 1/34
. . .
Attachment of ropes or cables to drums or barrels [2013-01]
B66D 1/36
. .
Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains [2013-01]
B66D 1/365
. . .
{by means of pivotably mounted drums or barrels} [2013-01]
B66D 1/38
. . .
by means of guides movable relative to drum or barrel [2013-01]
B66D 1/39
. . .
by means of axially-movable drums or barrels {(pivotably mounted drums or barrel B66D 1/365)} [2013-01]
B66D 1/40
. .
Control devices [2013-01]
B66D 1/42
. . .
non-automatic [2013-01]
B66D 1/44
. . . .
pneumatic of hydraulic [2013-01]
B66D 1/46
. . . .
electric [2013-01]
B66D 1/48
. . .
automatic [2013-01]
B66D 1/485
. . . .
{electrical} [2013-01]
B66D 1/50
. . . .
for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control [2013-01]
B66D 1/505
. . . . .
{electrical} [2013-01]
B66D 1/52
. . . .
for varying rope or cable tension, e.g. when recovering craft from water [2013-01]
B66D 1/525
. . . . .
{electrical} [2013-01]
B66D 1/54
.
Safety gear [2013-01]
B66D 1/56
. .
Adaptations of limit switches [2013-01]
B66D 1/58
. .
responsive to excess of load [2013-01]
B66D 1/60
.
adapted for special purposes [2013-01]
B66D 1/605
. .
{scaffolding winshes (B66D 1/74 takes precedence)} [2013-01]
B66D 1/62
. .
for actuating grab buckets (electrical control in cranes B66C 13/32) [2013-01]
B66D 1/64
. . .
by means of a single rope or chain [2013-01]
B66D 1/66
. . .
driven by a single motor [2013-01]
B66D 1/68
. . .
driven by two motors [2013-01]
B66D 1/70
. . .
driven through planetary or differential gearings [2013-01]
B66D 1/72
. .
Anchor-chain sprockets; Anchor capstans [2013-01]
B66D 1/74
. .
Capstans [2013-01]
B66D 1/7405
. . .
{having two or more drums providing tractive force} [2013-01]
B66D 1/741
. . . .
{and having rope storing means} [2013-01]
B66D 1/7415
. . .
{Friction drives, e.g. pulleys, having a cable winding angle of less than 360 degrees} [2013-01]
B66D 1/7421
. . .
{having a vertical rotation axis} [2013-01]
B66D 1/7426
. . . .
{driven by motor only} [2013-01]
B66D 1/7431
. . . .
{driven manually only} [2013-01]
B66D 1/7436
. . . .
{drivable by both motor and manually} [2013-01]
B66D 1/7442
. . .
{having a horizontal rotation axis} [2013-01]
B66D 1/7447
. . . .
{driven by motor only} [2013-01]
B66D 1/7452
. . . .
{driven manually only} [2013-01]
B66D 1/7457
. . . .
{drivable by both motor and manually} [2013-01]
B66D 1/7463
. . .
{Accessories} [2013-01]
B66D 1/7468
. . . .
{Handles} [2013-01]
B66D 1/7473
. . . . .
{with locking means} [2013-01]
B66D 1/7478
. . . . .
{Powered handles} [2013-01]
B66D 1/7484
. . .
{Details concerning gearing arrangements, e.g. multi-speed} [2013-01]
B66D 1/7489
. . .
{having a particular use, e.g. rope ascenders} [2013-01]
B66D 1/7494
. . .
{Self-tailing capstans} [2013-01]
B66D 1/76
. . .
having auxiliary drums or barrels for storing the ropes or cables [2013-01]
B66D 1/78
. . .
for shunting, e.g. in marshalling yards [2013-01]
B66D 1/80
. .
for scrapers [2013-01]
B66D 1/82
. .
for slewing and hoisting by means of derricks [2013-01]
B66D 3/00
Portable or mobile lifting or hauling appliances [2013-01]
B66D 3/003
.
{using two or more cooperating endless chains} [2013-01]
B66D 3/006
.
{Power actuated devices operating on ropes, cables, or chains for hauling in a mainly horizontal direction (B66D 3/003 takes precedence)} [2013-01]
B66D 3/02
.
Manually-operated, e.g. lever-actuated, devices operating on ropes, cables, or chains for hauling in a mainly horizontal direction (B66D 3/04, B66D 3/12 take precedence) [2013-01]
B66D 3/04
.
Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage (sheaves F16H 55/00) [2013-01]
B66D 3/043
. .
{Block and tackle system with variable number of cable parts} [2013-01]
B66D 3/046
. .
{Openable pulley blocks} [2013-01]
B66D 3/06
. .
with more than one pulley [2013-01]
B66D 3/08
. . .
Arrangements of sheaves [2013-01]
B66D 3/10
. . .
Applications of braking or detent devices [2013-01]
B66D 3/12
.
Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable [2013-01]
B66D 3/14
. .
lever operated [2013-01]
B66D 3/16
. .
operated by an endless chain passing over a pulley or a sprocket [2013-01]
B66D 3/18
.
Power-operated hoists [2013-01]
B66D 3/20
. .
with driving motor, e.g. electric motor, and drum or barrel contained in a common housing [2013-01]
B66D 3/22
. . .
with variable-speed gearings between driving motor and drum or barrel [2013-01]
B66D 3/24
. .
Applications of limit switches [2013-01]
B66D 3/26
. .
Other details, e.g. housings [2013-01]
B66D 5/00
Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads (for pulley blocks B66D 3/10) [2013-01]
B66D 5/02
.
Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes [2013-01]
B66D 5/023
. .
{Cooling of brakes (in general F16D)} [2013-01]
B66D 5/026
. .
{Fluid-resistance brakes} [2013-01]
B66D 5/04
. .
actuated by centrifugal force [2013-01]
B66D 5/06
. .
with radial effect (B66D 5/20 takes precedence) [2013-01]
B66D 5/08
. . .
embodying blocks or shoes [2013-01]
B66D 5/10
. . .
embodying bands [2013-01]
B66D 5/12
. .
with axial effect (B66D 5/22 takes precedence) [2013-01]
B66D 5/14
. . .
embodying discs [2013-01]
B66D 5/16
. .
for action on ropes or cables [2013-01]
B66D 5/18
. .
for generating braking forces which are proportional to the loads suspended; Load-actuated brakes [2013-01]
B66D 5/20
. . .
with radial effect [2013-01]
B66D 5/22
. . .
with axial effect [2013-01]
B66D 5/24
. .
Operating devices [2013-01]
B66D 5/26
. . .
pneumatic or hydraulic [2013-01]
B66D 5/28
. . . .
specially adapted for winding gear, e.g. in mining hoists [2013-01]
B66D 5/30
. . .
electrical [2013-01]
B66D 5/32
.
Detent devices [2013-01]
B66D 5/34
. .
having latches [2013-01]
B66D 2700/00
Capstans, winches or hoists [2013-01]
B66D 2700/01
.
Winches, capstans or pivots [2013-01]
B66D 2700/0108
. .
with devices for paying out or automatically tightening the cable [2013-01]
B66D 2700/0116
. .
Manually or spring operated winches [2013-01]
B66D 2700/0125
. .
Motor operated winches [2013-01]
B66D 2700/0133
. . .
Fluid actuated [2013-01]
B66D 2700/0141
. . .
Electrically actuated [2013-01]
B66D 2700/015
. . .
Actuated by chain, belt or by friction [2013-01]
B66D 2700/0158
. . .
Hydraulically controlled couplings or gearings [2013-01]
B66D 2700/0166
. . .
Winches with multiple drums or with drums with multiple parts of different diameter [2013-01]
B66D 2700/0175
. . . .
with adjacent drums mounted on a single shaft with a common coupling member [2013-01]
B66D 2700/0183
. .
Details, e.g. winch drums, cooling, bearings, mounting, base structures, cable guiding or attachment of the cable to the drum [2013-01]
B66D 2700/0191
. . .
Cable guiding during winding or paying out [2013-01]
B66D 2700/02
.
Hoists or accessories for hoists [2013-01]
B66D 2700/021
. .
Hauling devices [2013-01]
B66D 2700/023
. .
Hoists [2013-01]
B66D 2700/025
. . .
motor operated [2013-01]
B66D 2700/026
. .
Pulleys, sheaves, pulley blocks or their mounting [2013-01]
B66D 2700/028
. . .
Pulley blocks with multiple sheaves [2013-01]
B66D 2700/03
.
Mechanisms with latches or braking devices in general for capstans, hoists or similar devices as well as braking devices actuated electrically or by fluid under pressure [2013-01]
B66D 2700/035
. .
Fluid operated braking devices [2013-01]
B66D 2700/05
.
Brakes with mechanisms with latches for hoists or similar devices [2013-01]
B66D 2700/07
.
Brakes with axial thrust for winches, hoists or similar devices [2013-01]