GB1172598A - Fluid Pressure Operated Hand Tools - Google Patents

Fluid Pressure Operated Hand Tools

Info

Publication number
GB1172598A
GB1172598A GB35040/67A GB3504067A GB1172598A GB 1172598 A GB1172598 A GB 1172598A GB 35040/67 A GB35040/67 A GB 35040/67A GB 3504067 A GB3504067 A GB 3504067A GB 1172598 A GB1172598 A GB 1172598A
Authority
GB
United Kingdom
Prior art keywords
valve
pressure
fluid
plunger
motor
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
Application number
GB35040/67A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
New Draulics Inc
Original Assignee
New Draulics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by New Draulics Inc filed Critical New Draulics Inc
Publication of GB1172598A publication Critical patent/GB1172598A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/08—Drives or gearings; Devices for swivelling or tilting the chain saw
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/02—Secateurs; Flower or fruit shears
    • A01G3/033—Secateurs; Flower or fruit shears having motor-driven blades
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/08—Other tools for pruning, branching or delimbing standing trees
    • A01G3/085—Motor-driven saws for pruning or branching
    • A01G3/086—Chain saws
    • 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
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/0008—Means for carrying the chain saw, e.g. handles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/0016—Devices to adapt the chain saw for other purposes, e.g. drilling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/02—Chain saws equipped with guide bar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/08—Drives or gearings; Devices for swivelling or tilting the chain saw
    • B27B17/086—Angle drives

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental Sciences (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Scissors And Nippers (AREA)

Abstract

1,172,598. Wrenches. NEW DRAULICS Inc. 31 July, 1967 [1 Aug., 1966], No. 35040/67. Heading B3N. [Also in Divisions A1, B5 and F2] A fluid pressure-operated power wrench is controlled by a valve having a manually depressible plunger which, when depressed, closes an outlet port of the valve. This allows pressure to build up both inside the valve housing and in a line connected to the tool operating means. The pressure build-up in the valve housing acts on the movable valve element in such a way as to bias it toward the outlet-port-open " release " condition. A wrench (not shown) powered by a rotary fluid motor has that motor controlled by a valve including a plunger 190, Fig. 12, which when depressed can fully close an outlet port 208 whilst leaving an inlet port 206 still partly open. The inlet port communicates with a chamber 160 to which a fluid inlet pipe 166, Fig. 11, and also a passageway 162 leading to the fluid motor are both open. The outlet port communicates with a chamber 164 connected to a fluid return pipe 168, so that the fluid flow normally by-passes the conduit leading to the motor. When the outlet port is closed by depression of the plunger the by-pass between the inlet and return pipes is interrupted and pressure is applied both to the fluid motor and to the base of the valve plunger itself. This ensures that the valve is pressure-biased toward the " release " position, so that a spring loading is unnecessary, and also acts as a safety mechanism since over-pressure caused by an excessive load on the tool will tend to displace the valve plunger upwardly.
GB35040/67A 1966-08-01 1967-07-31 Fluid Pressure Operated Hand Tools Expired GB1172598A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US569540A US3343613A (en) 1966-08-01 1966-08-01 Power operated tool

Publications (1)

Publication Number Publication Date
GB1172598A true GB1172598A (en) 1969-12-03

Family

ID=24275860

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35040/67A Expired GB1172598A (en) 1966-08-01 1967-07-31 Fluid Pressure Operated Hand Tools

Country Status (8)

Country Link
US (1) US3343613A (en)
BE (1) BE702174A (en)
CH (1) CH455677A (en)
DE (1) DE1628052A1 (en)
ES (1) ES343620A1 (en)
FR (1) FR1549243A (en)
GB (1) GB1172598A (en)
NL (1) NL6710581A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5715901A (en) * 1980-05-14 1982-01-27 Yankuzatsuku Ierujii Saw device
JPS63180202U (en) * 1987-05-15 1988-11-21
GB2233599A (en) * 1989-07-04 1991-01-16 Simon Richard Pallister Pole-mounted chain saw for tree pruning
JPH0632321Y2 (en) 1987-09-14 1994-08-24 株式会社共立 Cutting device
CN113757226A (en) * 2021-09-18 2021-12-07 北京林业大学 Self-adaptive tree climbing and pruning method based on electro-hydraulic-pneumatic hybrid control

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731382A (en) * 1971-06-01 1973-05-08 D Wroe Extensible chain saw
DE2236138C3 (en) * 1971-07-23 1980-11-06 Husqvarna Ab, Joenkoeping Portable chain saw
US4024794A (en) * 1973-02-02 1977-05-24 Amp Incorporated Pneumatically operated cable-slitting tool
US4048722A (en) * 1976-06-28 1977-09-20 Howard Byron W Chain saw attachment
US4599079A (en) * 1985-03-04 1986-07-08 Chappell Gilmore H Automatic derailleur shifter
FR2602167B1 (en) * 1986-08-01 1993-10-29 Maire Bernard PNEUMATIC MACHINE FOR SCREWING NUTS FOR FIXING FLUID CIRCUIT CONNECTIONS
GB8920620D0 (en) * 1989-09-12 1989-10-25 Electrolux Northern Improvements in and relating to power-driven cutting tools
US5013282A (en) * 1989-11-20 1991-05-07 Technic Tool Corporation Extendible shaft assembly for portable tools
FR2661314B1 (en) * 1990-04-25 1993-05-21 Vidal Jean Paul TELESCOPIC ROD WITH ADJUSTABLE AND MOTORIZED CUTTING TOOL.
US5044080A (en) * 1990-11-30 1991-09-03 Trumpf Gruesch Ag Hand held nibbling machine
US5718050A (en) * 1996-03-08 1998-02-17 Technic Tool Corporation Pruning cutter
US6070676A (en) * 1998-08-13 2000-06-06 Framatome Connectors International Dual location handle and trigger for a hand-held power tool
IT1308195B1 (en) * 1999-02-23 2001-12-10 Franco Castelmani TOOL FOR SHRUBING SHRUBS.
US6415516B1 (en) * 2000-11-17 2002-07-09 Javier B. Tirado Power cutting device
SE0300989D0 (en) * 2003-04-04 2003-04-04 Electrolux Ab Device for a pole saw
US20050178010A1 (en) * 2004-01-23 2005-08-18 Alex Petrenko Chainsaw tool
JP4912976B2 (en) * 2007-07-31 2012-04-11 日東工器株式会社 Pneumatic tool
US8020304B2 (en) * 2008-02-13 2011-09-20 Echo, Incorporated Power transmission assembly for tool mounted on an elongate pole
US9032630B2 (en) 2009-02-20 2015-05-19 Positec Power Tools (Suzhou) Co., Ltd. Vegetation trimmer
CN101690985B (en) * 2009-09-27 2011-09-14 华中科技大学 Hydraulic chain saw
US20130161047A1 (en) * 2010-09-13 2013-06-27 Husqvarna Ab Handle arrangement for a power tool
DE102011005022A1 (en) * 2011-03-03 2012-09-06 Robert Bosch Gmbh Portable machine tool
DE102011005041A1 (en) * 2011-03-03 2012-09-06 Robert Bosch Gmbh Portable machine tool
DE102012206807A1 (en) * 2012-04-25 2013-10-31 Robert Bosch Gmbh Machine tool separating device
US9561546B1 (en) * 2013-05-15 2017-02-07 Clam Corporation Drill attachment
US20160318171A1 (en) * 2015-04-30 2016-11-03 Joseph Gonzales Telescopic saw
US9815220B2 (en) * 2015-05-27 2017-11-14 Dane Curtis Madson Multi-function adjustable chainsaw
US10350743B2 (en) * 2015-09-08 2019-07-16 Chervon (Hk) Limited Handheld electric tool
US10375896B2 (en) 2016-04-21 2019-08-13 Black & Decker, Inc. Pole hedge trimmer
US10130043B1 (en) * 2016-12-13 2018-11-20 Larry McNamara Chainsaw for trimming palm trees
CN106665145A (en) * 2016-12-14 2017-05-17 宁波鸿坤电器有限公司 Automated pruner
US11343973B2 (en) 2018-05-23 2022-05-31 Milwaukee Electric Tool Corporation Pole saw
US11878440B1 (en) * 2019-01-04 2024-01-23 Craig Mercier Unmanned aerial vegetation trimming system
US11766804B2 (en) * 2019-10-07 2023-09-26 Preston Hess Collapsible chainsaw
CN110744634A (en) * 2019-10-30 2020-02-04 商丘师范学院 Branches of tall trees sawing device that landscape environment beautified
USD1018228S1 (en) * 2023-10-24 2024-03-19 Ruihong Lin Connector for a pole saw

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2372942A (en) * 1941-06-06 1945-04-03 Chicago Pneumatic Tool Co Compression riveter
US2612140A (en) * 1946-05-04 1952-09-30 Leonidas C Miller Fluid driven actuator for tools
US2703928A (en) * 1953-12-08 1955-03-15 Clyde E Southwick Tree trimming saw mechanism
US3099135A (en) * 1957-02-25 1963-07-30 Manco Mfg Co Hydraulically actuated tool
US3097022A (en) * 1960-01-14 1963-07-09 Sernetz Heinz Elastically mounted antifriction bearing structures

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5715901A (en) * 1980-05-14 1982-01-27 Yankuzatsuku Ierujii Saw device
JPS63180202U (en) * 1987-05-15 1988-11-21
JPH0625290Y2 (en) * 1987-05-15 1994-07-06 株式会社共立 Handheld cutter device
JPH0632321Y2 (en) 1987-09-14 1994-08-24 株式会社共立 Cutting device
GB2233599A (en) * 1989-07-04 1991-01-16 Simon Richard Pallister Pole-mounted chain saw for tree pruning
GB2233599B (en) * 1989-07-04 1993-06-09 Simon Richard Pallister Powered pole-saw
CN113757226A (en) * 2021-09-18 2021-12-07 北京林业大学 Self-adaptive tree climbing and pruning method based on electro-hydraulic-pneumatic hybrid control

Also Published As

Publication number Publication date
US3343613A (en) 1967-09-26
CH455677A (en) 1968-07-15
BE702174A (en) 1968-01-15
FR1549243A (en) 1968-12-13
DE1628052A1 (en) 1971-01-28
ES343620A1 (en) 1968-09-16
NL6710581A (en) 1968-02-02

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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