US1512723A - Wrench - Google Patents

Description

w. TABERT WRENCH Filed Aug. 6, 1923 v INVENTOR. l] 33 -I H/Zlermer A TTORNEY.

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WRENCH.

Application le. August 6, 1,923. Serial No. 655,974.

To all 'whom t may concern.'

Be it known thatl, WALTER TABERT, a Lcitizen of the United States, residing at East Grand Forks, in the County of Polk and State of Minnesota, have invented certain new and useful Improvements in Wrenches, of which the following is a specification.

This invention relates to wrenches of the sliding jaw type, and has for its object to provide a wrench of such class, in a manner as hereinafter set forth, with means to permit of the convenient adjustment of the sliding jaw with respect to the work, as well as further including means for clamping the sliding jaw to the work when the wrench is manipulated for the purpose of removing or securing the work from or in position.

A further object of the invention is to provide a wrench of such class, in a manner as hereinafter set forth, including means for adjusting the sliding jaw with respect to the work, as well as locking the jaw in its adjusted position, and further with means, if any looseness is present between the jaws of the wrench and the work, whereby the sliding jaws and its locking means will be bodily shifted to securely clamp the work when the wrench is manipulated to remove the work from or secure it in position.

Further objects of the invention are to provide a wrench of the adjustable sliding jaw type, in a manner as hereinafter set forth, and which is simple in its construcltion and arrangement, strong, compact, thoroughlyl efficient in its use, including means to provide for the convenient adjusting of the sliding jaw as well as means for conveniently clamping thev sliding jaw against the work, and inexpensive to manufacture.

Vith the foregoing and other objects in view, the invention consists of the novel con-v struction,combination and arrangement of parts, as hereinafter more specifically described and illustrated in the accompanyingv drawings, wherein is shown an embodiment of the invention, but it is to .be understood that changes, variations and modifications can be resorted to which come within the scope'of the claims hereunto appended.

In the drawings wherein like reference characters denote corresponding parts throughout the several views Figure l is a side elevation of a wrench in accordance with this invention.

Figure 2 is a sectional elevation.

Figure 3 is a section on line 3-3, Figure 2. l j I Figure l is a section on line lf-t, Figure 2.

Figure 5 is a fragmentary Vview of the intermediate portion of the wrench looking towards the front thereof.

Referring to the drawings in detail, a

wrench in accordance with ythis invention consists of a body portion l` having a bifurcated inner portion 2 and a stationary jaw 3 formed integral with the outer end thereof. The body portion l vis formed with a lengthwise extending chamber 5, having the rear wall 6 thereof clos-ed and the front wall 7 provided with a Vlengthwise slot 8 which is of materially less width than the width of the rear wall 6 and is disposed centrally with respect thereto. The sett-ing` up of the front wall 7 with the slot 8 provides pair of oppositely extending shoulders 9. The slot 8 extends from the jaw 3 to the bifurcated inner end of the body portion l. The shoulders 9 constitute what may be termed combined seats and guides for the carrier, to be presently referred to, of the: slidable jaw.

The outer end wall of the chamber is provided by the inner face of the stationary jaw 3 and said outer vend wall'is formed with a pocket- 10 and a socket ll. Arranged in the socket ll, as well as projecting therefrom, is a coiled spring 12, having its rear end connected to a toothed stopy bara 13 which slides against the inner face :of the wall 6. The teeth of the *bar 13 are indicated at la and are of rthe ratchet type, The rear end of the barl is formed integral with a plate l5 whichfrides against the walls 6 and 7 and extends intothe bifurcatcd inner portion of the body portion l, and has the rear end thereof bevelled, as at 16. The plate l5 also rides against the side walls l? and 18 of the chamber 5 and extends across the inner end of the slot 8.

Arranged within the chamber 5, is a carrier 19 provided at one end with an extension 20 adapted to engage in the pocket l0 when the carrier is shifted towards the jaw 3, and

said extension constitutes means for spacing the sliding jaw 21 from the jaw 3 when the sliding jaw 21 is shirted'to the limit of its adjustment towards and with respect wider part, as well asfv'vith the smaller part otthe reduced pertion 22, Ais the sliding jaw 21 and the latr's adjusted relative to the 3 lwhen'the carrier is shifted within the chamber 5." Y

Vflhe carrier; 19, below4 the extension 20, is formed with an enlarged rectangular' recess k26, in which is arranged a spring controlled toothed looking member 27 which engages l with the teeth 14 to'arrest rearward shifting'ot the carrier when the latter has been adjusted andfwheii the member` 27 is in engagement with the barlfv The bottom or the recess 2,6 which is indicatedy at 23, is provided with aV pairv et pockets 29, which oppose a. pair of pockets 'formed in the member 2, and arranged in the"opposed'poclet s are ceilved Springs 31 Ywhich arel provided to nor- Init/illy maintain the'member 2,7 projected ltin-ji'carrier to engage the bar 13. flhe locking member 2174 ist retractcdinto thev recessl 26 for 'the' purpose of releasing the carrier 1,2 from the bar 13, by a pull rod' 32 whichhas itsinner end l'ixed to the member H27" and whi'clrturther KIextends4 through the opening`25 and has a hookpin 3,4 carried by the ears er,

shaped outer end 33. li/loii'nted on a pivot v j is a shitting leier 35a for the pull rod 32, and said leverl 35 has an apertured v'forward end 36v for the reception ot the hooked end 33 oijv the rod 3,2,whereby the latter and lever are loosely cbnnecjted. together and furthermore by conne ting the rod 32 with the lever 35 in the manner` as stated, when the upper end of thefleyer 3,5 'moved awayfrorn the carrier 19;, the rod 32 will' be carried therewith7 iin'derfsuch conditions retracting the meinber27 into the recess 26, causing thereby the release the carrier Ifrom the bar 13 and allowingof the jaw 21 to be adjusted in tlg flesired position with respect to the The inner or larger part of the carrier ofthe` 2'i1`is such that it Vwill slide.

against thev outer face of the wall 7, or in other words7 the length of the partof the carrier which projects from the slot 3 is they same as the width kof the jaw 21.

Theiretercnce character 33 denotes a. liandle member which has a reduced end 39 extending between the biturcated inner end 2 or" thef body portion. YThe reduced end 3S) is pivotally connected to the inner end or the body portion 1 by the pinta() and said end 39,l has an inclined edge 41 which opposes the bevelled edge 1610i the plate 15 when the handle 38 is in normal position and said reduced end 39 has la clam siziifface 12,"so that'whenthe'handle33 is swung in yone direction the bar 13 willbe mcved town the jaw 3, whereby the carrier 19` and jaw 21 willrbe carriedV therewith se that the 21 will clamp the work. The reduced end 39 is furthermore provided with'an 'eXten sion 32 which opposes the rear edge ofthe plate y15 when the handle 3S'is innoiinal position as shown in Figure 2.

From the foregoing constructien or', wrench, it not only provides for' the :a'djust ing of the sliding jaw 21 with respect to the work, as well as locking said jaw'21 from rearward shitting after it has been''adjust-v ed, but the wrench turtherincludes m nfs, if any looseness is present between the work and the jaws 3 and 21,- whereby the jaw 21 willbe shifted to tightly clampy the work during the manipulation oi the wrench, due

to the swingingy of the handle the pivote() so that `the cam,A surface 4];2will engage the plate 15j and shift only the bar 13 but the'carrier, locking member and jaw 21 bodily so that the'worl' willV be tightly clamped between ythe rjaws 3 and 21, and although the preferred embodiment of thev invention is as illustratedan'd de; scribed, yet vchanges the'detailsfof E struction can be'h'ad which will fall within the lioht ot the inventionas claimed.

l.. A wrench" comprising a bodyI portion provided at one sidewith a ilengthwise tending slot, a-'chamberfand a laterally eX; tending statienary j aw, a springcontrolled toothed bar arranged within'sfaid chamber, anv radjustable, carrier slidably" within said chamber and vhaying areduced portion extending through said slot, able aw formed integral with said reduced portion yand opposing the stationary jaw, vav spring cont-rolled locking memberv mounted in the carrier and engageable in `tlijeflotufr for maintaining the carrier'in its adjusted position, pivofted means connected Vwithmthe;v carrier for shifting saidlocling Vmen-ober, to released position with respect to saidy bari,t and a handle extending into tlie'rearend of and pivoted toj'said bodyv portion arid. provided with ya cam surface torjshittiiig sai-d barl whereby carrier will b `Dflved towards said stationary jaw. i

loo

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2. A Wrench comprising a body portion provided with a chamber and a stationary jaw, a spring controlled toothed bar arranged Within sai-d chamber, an adjustable carrier slidably mounted yWithin and p-rojecting from said chamber, a jaw integral with the carrier and opposing the stationary javv, a spring controlled locking member bodily movable With the carrier and engageable in said bar for maintaining the carrier in adjusted position, means lfor shifting said looking member relative to the carrier from engagement With said bar, and means for shifting said bar whereby said carrier and looking member Will move towards said stationary j aw.

In testimony whereof, I affix my signature hereto.

WALTER TABERT.

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