GB1367632A - Screw and half nut mechanism - Google Patents

Screw and half nut mechanism

Info

Publication number
GB1367632A
GB1367632A GB3531170A GB3531170A GB1367632A GB 1367632 A GB1367632 A GB 1367632A GB 3531170 A GB3531170 A GB 3531170A GB 3531170 A GB3531170 A GB 3531170A GB 1367632 A GB1367632 A GB 1367632A
Authority
GB
United Kingdom
Prior art keywords
screw
nut
engagement
plunger
vice
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
GB3531170A
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.)
Rabone Chesterman Ltd
Original Assignee
Rabone Chesterman Ltd
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 Rabone Chesterman Ltd filed Critical Rabone Chesterman Ltd
Priority to GB3531170A priority Critical patent/GB1367632A/en
Publication of GB1367632A publication Critical patent/GB1367632A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/2025—Screw mechanisms with means to disengage the nut or screw from their counterpart; Means for connecting screw and nut for stopping reciprocating movement
    • 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
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/10—Arrangements for positively actuating jaws using screws
    • B25B1/12—Arrangements for positively actuating jaws using screws with provision for disengagement
    • B25B1/125—Arrangements for positively actuating jaws using screws with provision for disengagement with one screw perpendicular to the jaw faces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)

Abstract

1367632 Vices RABONE CHESTERMAN Ltd 28 Sept 1971 [21 July 1970 22 Oct 1970] 35311/70 and 50253/70 Heading B3B [Also in Divisions F2 B4 and B8] In a screw and "half-nut" mechanism, a screw 10 is mounted in a cylindrical bore 12 and is engaged by a threaded end of a cylindrical plunger 16 slidably mounted in a cylindrical bore 18 having an axis inclined relative to a plane perpendicular to the axis of the screw. The arrangement is such that when the screw is tightened, the thrust which it exerts on the half-nut produces a tendency for the latter to be crowded into engagement with the screw. The screw may have a buttress thread or a square thread. For quick release, the plunger 16 is moved axially out of engagement with the screw. In a screw cramp, quick release of a spring-pressed plunger is obtained by operating a button 42, Fig. 4. A similar arrangement is employed in a woodworkers vice. In a metal workers vice, a half-nut is held in engagment with a screw by a shaft 150 which may be rotated to a position in which a flat 152 on the shaft 150 allows the half-nut to move out of engagement with the screw.
GB3531170A 1971-09-28 1971-09-28 Screw and half nut mechanism Expired GB1367632A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3531170A GB1367632A (en) 1971-09-28 1971-09-28 Screw and half nut mechanism

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3531170A GB1367632A (en) 1971-09-28 1971-09-28 Screw and half nut mechanism
GB5025370 1971-09-28

Publications (1)

Publication Number Publication Date
GB1367632A true GB1367632A (en) 1974-09-18

Family

ID=26262667

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3531170A Expired GB1367632A (en) 1971-09-28 1971-09-28 Screw and half nut mechanism

Country Status (1)

Country Link
GB (1) GB1367632A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2530506A1 (en) * 1982-07-26 1984-01-27 Virax Sa Rapid-manoeuvre hook for bending machines.
US4640388A (en) * 1985-02-06 1987-02-03 Walborn John B Escape device
WO1987001643A1 (en) * 1985-09-16 1987-03-26 Miller Clamps Gesellschaft M.B.H. Clamp
GB2185934A (en) * 1986-02-05 1987-08-05 Fusion Equipment Ltd Pipe-welding clamps
GB2263432A (en) * 1992-01-10 1993-07-28 Martek Ltd Clamp
WO2007118377A1 (en) * 2006-04-18 2007-10-25 Changguo Huang Adjusting distance's device using resiliently lead screw automatically
CN110216500A (en) * 2019-04-29 2019-09-10 珠海格力精密模具有限公司 CNC workpiece positioning device and machine tool using same
CN112297829A (en) * 2020-10-27 2021-02-02 青岛宇远新材料有限公司 Post-processing bracket

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2530506A1 (en) * 1982-07-26 1984-01-27 Virax Sa Rapid-manoeuvre hook for bending machines.
US4640388A (en) * 1985-02-06 1987-02-03 Walborn John B Escape device
WO1987001643A1 (en) * 1985-09-16 1987-03-26 Miller Clamps Gesellschaft M.B.H. Clamp
GB2185934A (en) * 1986-02-05 1987-08-05 Fusion Equipment Ltd Pipe-welding clamps
GB2263432A (en) * 1992-01-10 1993-07-28 Martek Ltd Clamp
WO2007118377A1 (en) * 2006-04-18 2007-10-25 Changguo Huang Adjusting distance's device using resiliently lead screw automatically
CN110216500A (en) * 2019-04-29 2019-09-10 珠海格力精密模具有限公司 CNC workpiece positioning device and machine tool using same
CN110216500B (en) * 2019-04-29 2024-01-26 珠海格力精密模具有限公司 CNC work piece positioner and use lathe of this anchor clamps
CN112297829A (en) * 2020-10-27 2021-02-02 青岛宇远新材料有限公司 Post-processing bracket

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PLNP Patent lapsed through nonpayment of renewal fees