US1753924A

US1753924A - Screw-actuated vise

Info

Publication number: US1753924A
Application number: US185737A
Authority: US
Inventors: Gordon William
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-04-22
Filing date: 1927-04-22
Publication date: 1930-04-08
Anticipated expiration: 1947-04-08

Description

April 8, 1930. w 1,753,924

- SCREW ACTUATED VISYE Filed April 22, 1927 INVENTOR' j ATRNEY I Patented Apr. 8 1930 UNITED STATES PATENT if OFFICE SCREW-ACTUATED VISE Application filed April 22,

This invention relates to improvements in screw-actuated vises.

One of the objects of this invention is to produce a screw-actuated vise which will have all the advantages of a screw-actuated vise for adjusting or tightening up upon the object which it is desired to secure, and, in addition, will be capable of quick manipulation to an approximate gripping position.

Another object of the invention is to produce a screw-actuated vise, comprising a stationary jaw and a movable jaw slidable relatively thereto which are capable of being tightened up on an article by the cooperative engagement of a screw and nut, and in which during initial or approximate adjustment of the jaws, the screw and nut may be automatically released from such cooperative engagement to enable quick adjustment.

Another object of theinvention is to produce a screw-actuated vise in which a movable jaw is instantaneously and manually releasable from screw-operative engagement, and upon such manual release, will be automatically moved to full open position.

Still another object of my invention is to produce a screw-actuated vise in which one of the jaws is normally movable and adjustable in gripping relation to the other by rela- 0 tive rotation of a cooperating screw and nut but in which the nut is preferably a sectional nut and the engagement between the cooperating threads of the screw and nut is yielding so that the movable jaw may without relative rotation of the screw and nut, by direct pushing movement be moved from open position to an approximately-closed gripping position, the engagement of the screw and nut being automatically released during such initial closing movement which causes the threads of the screw to click over the threads on the sectional nut into an approximate or initial position for engagingthe object to be operated upon and this feature-is preferably combined with the further feature that the cooperative engagement of the screw and nut is manually releasable and upon such manual release the movable jaw will be automatically moved by an opening spring intofull open position.

1927. Serial No. 185,737.

With these and other objects in view, the mvention comprises the combination of members and arrangement of parts so combined as to co-act and cooperate with each other in the performance of the functions and theaccomplishment of the results herein contemplated, and comprises in one of its adaptations the species or preferred form illustrated in the accompanying drawings, in which Fig. 1 is a vertical section substantially on the line 1-1 of Fig. 2;

Fig. 2 is a plan view of the vise shown in Fig. 1; and

Fig. 3 is a section on the line 33 of Fig. 1. Referring now to these drawings, which illustrate a preferred embodiment of my invention, 1 indicates a body portion of a vise having an attaching base portion 2 which may be attached to a suitable bench or support 3 by screws, 4, 4, 45*. The upper end of the vise is provided with a stationary jaw 5 and a horizontal cavity 6 is provided for the reception of a sliding shank portion 7 of a movable jaw 7. Said movable jaw 7 is preferably provided with a cavity 9 preferably opening downwardly and extending from a solid head portion 10 to a solid tail portion 11. Mounted within the cavity 9 with its opposite ends rotatably supported in the head portion 10 and tail portion 11, is a tightening screw 12. As illustrated, the screw 12 is provided at its rear end with a journal 12 which is mounted in a bearing aperture 11 in'the tail piece at the rear end of the said shank 7, and adjacent to its opposite outer end 10 in a bearing aperture in the head portion 10 and having at its opposite end a cylindrical head 13 provided with a slidable handle bar 14- of conventional construction, said head 10 being also, as shown, provided with a collar-gravity 15 within which is fitted a locking collar 16 fastened by set screws 16 to the unthreaded portion 12 of the screw 12.

' Communicating with the horizontal aperture 9 within the body of the vise and intersecting the same at a right angle is a vertical aperture 17, and mounted in said aperture 17 is a sectional nut 18 having its threads 19 yieldingly pressed into engagement with the threads 12 of the screw 12 by a spring s rin 2O forced ieldin 'l into en a ement C b Z3 :3

with the threads 12 of the screw, and that the inclination of the screw "threads and nut threads is such that'- direct manual inward pressure onthe movable jaw will cause: an automatic releasing or disengagement of the threads of the nut fromthe threadsof the screw and-suchmanual inovement will cause a clickingof the-threads of the screw over: the nut'threads, -so as to enable the movable jaw 8 to be moved to its approximategripping position v I In the "preferred embodiment of my invention means for manually releasing the threads of the sectionalmut-- from thethreads of the screw is provided and upon such manual release of the threads of. the screw, the shank ,:of the' movable-jaw- 7 is automatically forced outwar-dlvby a spring 2 1 to'cause a movement of the movable jaw to full-open position and, as illustrated, I provide finger-actuated means which,- as shown, comprises finger pieces 25, havingshanks screwed into the sides' of thesectional nut 18 and extending through

elongated openings

26, 26 at oppositesides of thebodyporticn 1 of the vise. Upondepressing one or both'of the

finger pieces

25, 25 the jaw 7 will immediately, by the pressure of the spring 2 1, be automatically moved to full-open position.

In: the construction shown, the spring 24' has one end portion mounted'i'n a cavity 27 formed at the-rear end 11 of the shankof'the jaw -8,said spring being so mounted in this cavity with itsend abutting against the inner vertical: wall thereof, while the opposite end of the spring abuts against the inner surface 28 of anenclosing tube 28 suitably mounted'on the rear end of the body portlon 1 of-the visexand, as shown, having side flanges 28 fastened-by screws 29 'to the rear face of said bodyportion. This tube not .only encloses the springbut prevents the accessof dirt and filings to said spring and to the screw.

hen the sectional nut is manually released. asaforesaichand'the jaw moved to so itsfull open position by-means of the spring 2 1;:the shoulder ll will i contact with the side surface 18 of the sectionalnut which shoulder and surface form:limiting-.stops to prevent excessive outward movement :by the spring;;

It will be seen that-the threads which position the shoulder 11% will engage the side of the sectional nut 18. The article to be gripped is then inserted between the jaws andthe jaw Sis slid or moved manually againstthe action of the spring 24 into an initial-adjusted position, the engagement of the threads of the screwed nut being yielding is, during thissliding-movement, automatically released, the threads ofthe screw click-- 111g over the threads of tllQ-SGCtlOIlttl-Illlt-QS the same ismanually slid .over vthe same;-

The aw 8 is now further tightened upon the article by rotation of thescrew intheaconventional manner through the conventional bar handle-14. During this rotating'move ment of the screw the sectional nut,-which "fits snugly within its mountin glaperture 17,iwil1 enable a tightening. movement of the jaw 8,

andI have found thata strong tight, grip..

in all respects'as-tightas.in the ordinary; screw and nut may be obtained upon the. article and there is no danger of a slipping of the teeth during this rotating movement of the screw.

It will be seen that the operating parts of mounted-thereon for rotary movement only, a sectional nut mounted for vertical. movement only and-having a connection withthe other jaw memberand provided with threads arranged to'be operatively engaged with the threads of said screw,-the threads .of said screw and-nut having complementary inclined sides arranged to permit a relative sliding movementin one direction, spring means for normally pressingithe threads of said section a1 nut into engagement withi-thezthreads of said screw, whereby directmanual pressure against the movable jaw will-permit a elick-- ing of the threads of the screwover thoseof the sectional nut to produce a quick move-'- ment of the movable j aw, means for'manuah ly disengaging the threads of said sectional nut and screw, and a spring normally coop .erating with the first mentioned spring meanstopress the inclined threads'of the screw into engagement. wit-l r the inclined threads of the sectional nut and also opera-.

tive upon manual disengagement of the nut to 7 move the jaws into full open position.

2. A. vise comprising a supporting body portion provided with a fixed jaw and having a horizontal cavity, a movable jaw having a shank portion slidable within said cavity in the supporting body portion, a screw having screw threads mounted for rotary movement only within said shank portion of the movable jaw, a sectional nut mounted to have vertical movement only in said supporting body portion and provided with threads arranged to have an operative engagement with the threads of said screw, means for yieldingly forcing the threads of said sectional nut into engagement with the threads of said screw, and a spring arranged in a spring-enclosing casing connected to the rear end of the body portion and adapted upon manual release of said screw threads to move the movable jaw into full open position.

3. A vise comprising a supporting body portion provided with a fixed jaw and having a horizontal cavity, a movable jaw having a shank portion slidable within the cavity in said supporting body portion, a screw having screw-threads mounted for rotary movement only within said shank portion of the movable jaw, a sectional nut mounted for vertical movement only in said supporting body portion and having threads arranged to have an operative engagement with the threads of said screw, said screw threads of the nut and screw having complementary inclinations to permit sliding movement in one direction, a spring for yieldingly forcing the threads of the sectional nut in operative engagement with the threads of the screw, means for rotating said screw to cause a tightening movement of the movable jaw in relation to the fixed jaw, means for manually disengaging the threads of said nut and screw to permit movement of the movable jaw in relation to the fixed jaw, and a spring normally cooperating with the first mentioned spring to press the inclined threads of the screw into engagement with the inclined threads of the sectional nut and also to force said jaws into full open position upon manual release of the engagement of said screw threads against the action of said first mentioned spring.

In witness whereof, I have signed my name to the foregoing specification.

WILLIAM eonnon.