US1721860A - Wrench - Google Patents

Description

July 23, 1929. H. C KROGEL 1,721,860

WRENCH Filed July Q9, 1.927

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. vApplicimmrfneii Jury 29, 1927..= serial N0.-209,246.

The main objects of this invention are: First, to provide any improved wrench which is very quickly openedand closed tol engage or release the work.

Second, to provide an improved wrench which is engaged with ordisengagedfrom,

the work by the manipulation of the' handle, which is very powerful, and requires but little power to hold the movable jawto the work. 4 f

Objects pertaining to details and economies of my invention `will definitely appear from the description to follow. The invention is pointed out in the claims.

A structure which is a preferred embor iment of my invention is clearly illustrated in the accompanying drawing7 in which:

Fig. 1 is a side view ot my improved wrench.

Fig. 2 is a detail side elevation, parts being broken away to show structural details.

Fig. 3 is a detail side elevation corresponding to that of Fig. 1 with the jaws completely closed.

Fig. 4 is a detail section on line 4-4 of Figs. l and 2.

Fig. 5 is a transverse section on line 5-5 ot Figs. 1 and 2.

Referring to the drawing, my improved wrench in the embodiment illustrated comprises a head designated generally by the numeral 1 and having a fixed jaw 2 mounted thereon. The fixed jaw has a base portion 3 forming a part of the head and having a jaw slideway 4 therein having opposed grooves 5.

The base portion 3 is secured to the arms 6 on the fixed handle 7 by means of the rivets 8. The arms also constitute a part of the head. These arms 6 are lformed to provide a bearing 9.

The movable jaw 10 is carried by the slide 11 disposed in the slideway 4 and provided with longitudinal ribs l2 coacting with the grooves 5 of the slideway. The movable jaw has a rack 13 coacting with the teeth 14 on the disk 15 rotatably mounted in the bearing 9. This disk is held in its bearing by disklike side members 16 overlapping the arms 6 constituting a part of the head.

The disk and its side plates 16 are secured together by the rivets 17.

movable handle v18 is pivoted at 19 on the fixed handle 7 and forked to embrace the lower ortion of the head, the arms 20 et the znovab e handle having a Uehaped cani slot 21 therein. Pins 22 having heads 23 at the ends thereof project from the toothed meinber to engage these cam slots so that when the handle 1S is swung on its pivot the toothed member 1G is rocked or oscillated in its bearw ing, thereby opening and closing the movable jaw 10. This provides for rapid manipulation and also a very powerful gripping of the work.

I also provide a wire cutter consisting of a knife member 24 mounted on the handle 7 with its cutting edge facing inwardly. The

cutter is slotted to embrace the edge of the handle 7 and 'is retained by means of the pivot 19. A cutting edge 25 is 'iorinedon the handle 18 so that when the handle is swung on its pivot, this cutting edge is ca rried toward the cutting edge 14. The handles 7 and 18 are provided with grips 20 and 27, respectively.

I have illustrated and described nay impiovements in an embodiment which i regard as very practical. I have not attempted to illustrate or describe other adaptations possible as I believe this disclosure will enable the embodiment or adaptation of my improvements as maybe desired.

Having thus described my invention what l claim as new and desire to ser-nre by Letters Patent is:

1. A wrench comlnising a head provided with a fixed handle and havingl a cylindrical bearing and a transversely disposed jaw slideway having opposed longitudinal grooves.y a fixed jaw on said head disposed at one end oi? said slideway, a courting movable jaw slid able in said way and provided with ribs engaging said grooves and with a rack on its inner edge, a toothed disk rotatably mounted in said bearing to coact with said rack, a forked handle pivoted on said fixed handle to overlie said disk and provided with a U-shaped cam slot, and a pair of pins arranged through said disk to engage said cam slot and provided with heads at each end.

2. A wrench comprising a head provided with a fixed handle and having a cylindrical bearing and a transversely disposed jaw slideway having opposed longitudinal grooves, a fixed jaw on said head disposed at one end of said slideway, a coacting movable jaw slidable in said way and provided with ribs engaging said grooves and with a rack on its inner edge a toothed disk rotatably mounted in said hearing to cenet with sind rack, a handle pivoted On-said fxedihandle to` overlie said disk -andprovided with aeam slot, and a pin on said disk engaging said cam slot.

3. A wrench comprising a head provided with a fixed jaw and having ammovable jaw slideway,`a movable jaw slidable in said way and provided with a rack, a toothed member rotatably mounted in said head to eoact with said rack, a. fixed handle on Said head, a coacting handle pivotally mounted on sa id fixed handle to overlap vsaid: toothed member/and' provided with a U-shaped cam slot, and a pair of headed Studs on said toothedvmember engaging said cam slot.

4. A wrench comprising a head providedv with a fixed jaw and having a movable jaw slideway, a movable ]aw slidable 1n Said way and provided with a rack, a toothed memberwith a {ix-ed jaw having-a .movable I.j azW-slideway,a movable jaw slidab'le in s'aidway and provided with a rack, a toothed member rotatably mounted in said head, to Coactwith said Lrack, a relatively fixed handleon Said head, a Coaeting pivoted handle provided with a U-shaped cam slot, and a pair of pins on said rotatably mounted member engaging said slot whereby.- .the movable jaw is opened and closed by the movement of said pivoted handle. Y i -Iiy f- 6. A wrench comprising a headprovided with a fixed jaw having a movablejaw slideway, a movable jaw slidable in-said Way and provided with a rack, a toothed member'rotatably mounted in said head to eoaetfwi'thV said rack, a relatively iiXed handlefon said head, a coaeting pivotedl handle provided witha cam slot, and a pinonf'said rotatably mounted member engaging said slot whereby the movable jaw is opened and'elosed by the movement of said pivoted handle. f

ln witness whereof I have'hereunto set my hand. f' i HENRYJC. KROGEL..

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