GB1251276A - - Google Patents
Info
- Publication number
- GB1251276A GB1251276A GB1251276DA GB1251276A GB 1251276 A GB1251276 A GB 1251276A GB 1251276D A GB1251276D A GB 1251276DA GB 1251276 A GB1251276 A GB 1251276A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- speed
- motors
- reached
- sliding vane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/145—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for fluid operated wrenches or screwdrivers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H39/00—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution
- F16H39/01—Pneumatic gearing; Gearing working with subatmospheric pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Surgical Instruments (AREA)
Abstract
1,251,276. Nut runners. CHICAGO PNEUMATIC TOOL CO. 15 Sept., 1969 [19 Nov., 1968], No. 45281/69. Heading B3N. A two speed pneumatically operated nut runner comprises a sliding vane main motor 11 connected to a socket 21 by a two stage reduction gearing 15, and a sliding vane auxiliary motor 12 connected to the main motor by a one way overrunning clutch 26. Air is concurrently supplied to the motors at 27, 28. In operation, with clutch 26 being overrun, motor 11 tightens the workpiece until a predetermined torque is reached, whereupon due to the reduction of speed of motor 11 to the speed of motor 12, the latter drives the former at low speed and high torque until a final predetermined torque is reached. The motors then stall.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US77712568A | 1968-11-19 | 1968-11-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1251276A true GB1251276A (en) | 1971-10-27 |
Family
ID=25109358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1251276D Expired GB1251276A (en) | 1968-11-19 | 1969-09-15 |
Country Status (3)
Country | Link |
---|---|
US (1) | US3529513A (en) |
DE (1) | DE6935330U (en) |
GB (1) | GB1251276A (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3686983A (en) * | 1970-07-20 | 1972-08-29 | Thor Power Tool Co | Torque applying and tension controlling device |
US4147219A (en) * | 1977-11-21 | 1979-04-03 | Chicago Pneumatic Tool Company | Two-speed offset nutrunner |
DE2840140A1 (en) * | 1978-09-15 | 1980-03-27 | Schmid & Wezel | PNEUMATIC SCREWDRIVER WITH Bypass |
FR2474372A1 (en) * | 1980-01-25 | 1981-07-31 | Tabard Jean Louis | TIGHTENING APPARATUS |
US4403663A (en) * | 1981-04-13 | 1983-09-13 | Wolff Manufacturing Company | Power-operated torque wrench |
JPS5894976A (en) * | 1981-11-23 | 1983-06-06 | アトラス・コプコ・アクチボラグ | Air operation power tool for clamping screw connecting section |
SE427812B (en) * | 1981-11-23 | 1983-05-09 | Atlas Copco Ab | TWO-ENGINE TOOL FOR TIGHTENING SCREW TAPE |
SE427810B (en) * | 1981-11-23 | 1983-05-09 | Atlas Copco Ab | TWO-ENGINE TOOL FOR TIGHTENING SCREW TAPE |
JPS58181579A (en) * | 1982-04-14 | 1983-10-24 | ヤマハ発動機株式会社 | Operating device for screw, etc. |
JPH0295579A (en) * | 1988-09-28 | 1990-04-06 | Maruma Jusharyo Kk | High torque hydraulic shoe bolt wrench |
US6093128A (en) * | 1999-03-12 | 2000-07-25 | Ingersoll-Rand Company | Ratchet wrench having self-shifting transmission apparatus |
US6165096A (en) * | 1999-03-12 | 2000-12-26 | Ingersoll-Rand Company | Self-shifting transmission apparatus |
CN102695588A (en) * | 2009-12-17 | 2012-09-26 | 日东精工株式会社 | Threaded fastener tightening and loosening device |
-
1968
- 1968-11-19 US US777125A patent/US3529513A/en not_active Expired - Lifetime
-
1969
- 1969-09-03 DE DE6935330U patent/DE6935330U/en not_active Expired
- 1969-09-15 GB GB1251276D patent/GB1251276A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE6935330U (en) | 1970-04-02 |
US3529513A (en) | 1970-09-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |