US1323647A - peters - Google Patents

Description

f. w. PETERS. VISE.

APPLICATION FILED MAY Il |918.

Patented De. 2, 1919.

l 2 SHEETS-SHEET 2.

sra Es ar Errea.

FREDERICK W. PETERS, OF WEST IARK, OHIO, ASSIGNOR TO THE PARAGON MACHINE, TOOL & MANUFACTURING COMPANY, Ol CLEVELAND, OHIO, A CORPORATION 0F i OHIO.

` VISE.

)Patented Dec. 2, 1919.

Application filed May 11, 1918. Serial No. 233,981.

To @ZZ wwm t may concern:

Beit .known that I, FREDERICK W. PETERS, a citizen of the United States, residing at Test Park, in the countyrof Cuyahoga and Statev of Ohio, have invented a certain new and useful Improvement in Vises, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates to clamping de vices, such as vises, and has for its general object so to construct and operate the movable member thereof as to ena-blel the convenient and positive manipulation of such partv for the purpose of clamping and un- -clamping various articles upon which it is to operate. n v I A 'furtherpand more 'limited ob]ect of the invention is to provide a device of this character with means whereby the movable jaw may be conveniently brought into operative relation with the article to be clamped, after which it may be further and more securely clamped against such article through the manipulation of the handle and may afterwardbe disengaged from such article and opened in an extremely ,effective Vand convenient manner. I secure these objects in and through the Vconstruction and arrangement of parts illustrated in the drawings forming part hereof wherein Figure 1 represents a central longitudinal sectional view througha vise embodying my invention, certain parts being shown in elevation and the p'awl bein'gshown in locking position; Fig. 2 is a view corresponding to the line 2-#2 of Fig. 1 and looking in the direction `of the arrows. Fig. 3 a longitudinal sectional view corresponding substantially to the line 3'-3 of Fig. 2 and looking in the direction .ofthel arrows, the Aparts being shown in fixed Vj aw 3. The bed-plate is provided with a ratchet or rack 4, secured in any convenient manner within a recess extending longitudinally of the bedplate` and located about Y midway between the sides of such bed plate,

the saidlratchet orrack having teeth 5 eX- portion 61- therebeneath "being somewhat `wider than the portion `6 while the lowest portion 6b of the slot is shown as considerably wider than the portion 6am The slot portions 6 form guides for tongues 7a projecting downwardly from and preferably formed integral with the movable member 7 of the vise, said movable member being provided lwith a movable `jaw 8. Coperating with each tongue 7 is a removable extension 9, the upper portion of such eX- tension being shown as of substantially the same width as the tongue whereby it may slide freely with the slot portion ofL and the lower portion of each such extension being enlarged to provide an elongated head 9a the upper lateral edges whereof are adapted to engage beneath the shoulder 6c while the head is free to slide within the slotted pora chamber 1l4 projecting upwardly from the bottom thereof, said chamber being located between the tongues Gand providing side walls 7b, a rear wall 7c and a front wall 7d extending transversely of said. member, the

jaw 8 `being secured to. the last mentioned wall. The bottoms of the walls7b and 7c and the bottoms of the sides of the vmovable member are adapted to slide upon the bed plate l.

The walls 7c and 7 d are provided with cylindrical apertures constituting bearings for a screw shaft l2, the front end l2a vof said shaft being shown as of smaller diameter than the rear end and a collar l2b being detachably connected, as by a pin 13, to the said shaft immediately in front of the rear bearing. Between the bearings, the body of the shaft is provided with a heavy thread 12C, constituting a screw.

Mounted on the screwvis a nut comprising an Ainner Vinternally threaded bushing 14C, having a flange 11a at its rear end, and an external rectangular sleeve 15, the said bushing having a driving connectionwith said sleeve whereby the bushing and sleeve will move in unison through the rotation of the screw. The sleeve 15 is provided with a pair of trunnions 15a projecting laterally from the central portion thereof, said trunnions forming a. bearing for a pawl. This pawl may be conveniently formed oftwo symmetrical members 16, each comprising an arm having -a bushing 16:L whereby it may be applied to ya trunnion, the lower end of each arm having a projection extending at right angles to the body thereof, as indicated at 16h, the portions 161 constituting the pawl proper and the pawl members being connected by means of a bolt 17 tted in one o-f such lateral projections lb'and threaded into the other. The lower end of this Vpawl is adapted to coperate with the rack o-r ratchet teeth 5.

A pair of pins 18 are mounted in the base of the movable member 7, each projecting inwardly above and on opposite sides of the rack 4e and immediately above the same. These pins coperate with the pawl in a manner to be described hereinafter. M

The rear end of the screw shaft is -provided withv a clutch collar 19 cooperating with the collar 13 to prevent relative longitudinal movement between the screw and the movable vise member. Rotatably mounted on the rear end ofthe screw shaft is a handle 20, said handle being movable along the shaft and having a clutch member 21 adapted to coperate with the clutch collar 19 to provide a driving connection between the handle and the screw shaft.

With the parts constructed and arranged as described the operation will be as follows:

VAn article having been inserted between jaws 3 and 8, the movable member including the jaw 8 may be slid by hand upon the bed plate 1 until the jaw 8 is in substantial engagement with such article, the pins 18 traveling with said movable member and the pawl riding over the teeth of the ratchet or rack. The operator then grasps the handle 20, moving it into driving relation to the clutch member 19 and with a left-handed screw such as shown in the drawings,'turns `the vhandle in :a counter-clockwise direction.

If the pawl proper is not in actualengagement with the vertical shoulder of a tooth the rotation ofthe screw will impart a backw'ardv movement to the nut 14, 15 until such time as the pawl abuts against such shoulder to lock the nut against movement. Further movement ofthe nutl is suspended by such engagement and further Vrotation [of the screw causes the movable member Vto be thrust forwardly, the screw being rotated until the article is firmly clamped between the jaws 8 and 8, the positionor the parts being shown in Fig. 1. W hen it is desired to release the article, the handle 2O is rotated in the opposite direction. This causes the nut 14, 15 to move forward-ly upon the screw and, before the nut shall have reachedV the front end of the chamber 11, the pins 18 will have engaged the arms 16 respectively thereabove to trip the pawl, asshown in Fig. 3. The operator can then grasp the movable member, and move the'fsame rearwardly by" hand, the pawl being lifted clear of the rack teeth. The pawl may be set in operative relation to the rack merely by revolving theV handle 2O in the appropriate-vdirection..A

It will be seen that the pawl, the ratchet or rack, the pinsv 18 and the screw 12 afford means by which the movable clamping member may be locked against rearward movement in any position to which it may have been adjusted toward the' fixed clamping member 3; also that, 4when the movable clamping member shall have been adjusted by hand to approximate clamping position,

further movement of said movable `clamping Y v the movable member to be operated in the reverse directionV by hand-and that Ythe screw 12 and nut 141, 15 constitute the means for` securing ,the` reverse relative move-AV ments between the pawl and the movable clamping member. Y,

As rust or the accumulation of sediment may prevent the pawl from droppinginto. place when Vreleasedrfrom the pins 18,1` have interposed a spring 22 between eachV arm or member 16 .of the pawl andthe guideway formed thereabove by the side -of the top of the chamber 11 and the side wall- 7b thereof, the top ofjsaid'chamber has a central depressed portion 15b 'cooperating with the nut -sleeve 15 and also coperating Vwith the walls '75 tov form said guideways.

ofv locking device'` cooperating with-.theAV pawl; nor doI` propose to limit my inveniio npropose to be limited to anyparticularstyle Y tion except as such limitations may appear in the claims hereto annexed or may be rendered necessary by the state of the prior art.

Having thus Adescribed. my invention, what I claim is l. In a device of the character described, the combination of a bed, a pair of clamping members carried by said bed, one of said members being movable toward and from the other, a screw carried by such movable member, a nut mounted on said screw and provided with a pair of trunnions, a pawl having arms pivoted on said trunnions, a rack carried by said bed and cooperating with said pawl, and a pair of pins carried by the movable member and each projecting beneath an arm of said pawl and adapted to engage such arm through the movement of the nut along said screw.

2. In a device of the character described, the combination of a bed, a pair of clamping members mounted thereon one of said members being movable toward and from the other, a screw supported by the movable member, a nut comprising an internally threaded bushing mounted on said screw, and a sleeve "surrounding said bushing and provided with a support, a branched pawl pivoted on said support, a rack having inclined teeth mounted von said bed in opera tive relation to said pawl, and a pawl-engaging device carried by such Vmovable member and extending between theipawl and the rack and adapted to disengage the pawl from the teeth of said rack when the said nut shall have traveled a predetermined distance on said screw.

3. In a device of the character described,

the combination of a bed, a pair of clamping members carried by said bed, one or' said members being movable toward and from theJ other, a screw carried by such movable member, a nut mounted on said screw and provided with a pair of trunnions, a pawl having arms journaled on said trunnions, a rack carried by said bed and coperating with said pawl, a pair of pins carried by the movable member and each projecting beneath an arm of said pawl and adapted to engage such arm through the movement of the nut along said screw, and a spring cooperating with each arm of said pawl and tending to move the pawl into engagement with said rack.

4. In a device of the character described, the combination of a bed, a pair of clamping members mounted thereon, one of said members being movable toward and from the other, a screw supported by the movable member, a nut comprising an internally threaded bushing mounted on said screw and a sleevel surrounding said bushing and .provided with trunnions, a pawl having arms journaled on said trunnions, a rack mounted on said bed in operative relation to said pawl, pawl-engaging devices carried byV such movable member and extending between the arms of the pawl and the rack and adaptedto disengage the pawl from the teeth of said rack when the said nut shall have traveled a predetermined distance on said screw, and a spring coperating with said pawl and tending to move the pawl into engagement with said rack.

In testimony whereof, I hereunto ax my signature.

FREDERICK W. PETERS.

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