US1423803A

US1423803A - Wrench

Info

Publication number: US1423803A
Application number: US490875A
Authority: US
Inventors: George D Illig
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-08-09
Filing date: 1921-08-09
Publication date: 1922-07-25
Anticipated expiration: 1939-07-25

Description

G.-D. ILLIG.

WRENCH.

APPLICATION FILED AUG.9. 1921.

1,423,803, Patented July 25, 1922.

- 2 SHEETSSHEET l.

G. D. ILLIG.

WRENCH.

APPLICATION FILED-AUG.9, 1921.

1,423,803, Patented July 25, 1922;

2 SHEETS-SHEET 2.

AffOQA/E n5 GEORGE D. ILLIG, OF DEPEW, NEW YORK.

WRENCH.

masses.

Specification of Letters Patent.

PatentedJnly 25, 1922.

To all whom it may concern:

Be it known that I, GEORGE D. ILLrG, a citizen of the United States, residing at Depew, in the county of Erie and State of New York, have invented a new and useful Improvement in l/Vrenches, of which the following is a specification.

This invention relates to wrenches of the,

kind having fixed and movable jaws and in which the movable is adjusted toward and from the fixed jaw preferably at an.

angle to the longitudinal axis of the handle of the wrench.

The objects of this invention are to provide a wrench of this kind which is made largely of sheet metal, thereby reducing the cost of manufacture of the wrench; also to provide a wrench of this kind in which the parts are so formed by dies or the like that much machine work heretofore necessary is.

- member arranged between the two stamped metal parts of the wrench.

Fig. 5 is a section of the wrench on line 5-5, Fig. 1.

Fig. 6 is a section thereof on line 66, Fig. 1.

Fig. 7 is a perspective view of the movable j aw of the wrench.

Fig. 8 is a face view of a wrench of slightly modified construction.

Figs. 9 and 10 are sectional views thereof on lines 9-9 and 10e-10 respectively, Fig. 8.

In the particular embodiment of the invention shown in the drawings, the bodyportion of the wrench includes two parts on plates A A which are preferably made of. fiat or sheet metal stamped out into the desired form and which include handle portions a, headportions a and fixed jaw portions a At the handle portion of the wrench these two sheet metal parts are secured together so that their adjacent faces are in contact. bent slightly at a at the portion where the handle connects with the head of the wrench so that at the head portion of the wrench The sheet metal parts are the two plates A A are spaced apart. Both of these body plates are provided with means for guiding the movable member or jaw of the wrench, the plates shown in Figs. l-7 inclusive being for this purpose provided with slots or cutout portions in the head of the wrench, the edges of the slots forming substantially parallel guide faces or edges 6 and b, and at one end the cutout portion is provided with an enlarged opening B in which the head 0 of an adj usting screw or member C is arranged. The guide faces 6 are formed on the inner faces of bridge portions b connecting the fixed jaw portions with the opposite side portions of the wrench head and the outer edges Z1 of these bridges or connecting members form guide faces for the. movable jaw of the wrench.

At the head of the wrench a spacing or insert member D is provided which is placed between the two plates A A and which is preferably also made of fiat or sheet metal and which may be stamped or punched into the desired shape. This insert member corresponds substantially to the shape of the head, being provided with a part (Z which forms a portion of the fixed jaw of the wrench, and with a tapered portion d which enters between the curved portions a of the sheet metal parts of the wrench. The insert -member is also providedwith a part d coresponding to the edge I) of the slot in the head. of the wrench and with a part which corresponds with the recess B for receiving the head of the adjusting screw. The insert member has no bridge portion corresponding to the bridge portions 6 of the body parts of the wrench so that when the parts of the wrench are assembled the two bridge portions 5 of the plate will be spaced apart forming a guide slot for the movable member or jaw of the wrench, thus eliminating the machining of a slot of this kind.

E represents the movable jaw of the wrench which is guided in its movement along the head of the wrench by means of a guide portion preferably formed integral with the jaw E, and which includes a reduced or connecting portion 6 adapted to enter into the space between the two bridge portions Z2 and an enlarged end or retaining portion 6 arranged in the slot in the wrench head and guided by the opposite faces 6 and 6 thereof. The base of the jaw E is provided with shoulders e which engage the guide edges 6 of the plates A A. This enlarged portion, in the construction shown, is provided with a tapped or threaded hole a in which the adjusting screw C engages.

In order to prevent the movable jaw from binding the adjusting screw in the slot of thewrench head, as might happen if the movable jaw member becomes loose due to much use, the adjusting screw is preferably provided with pintles or trunnions c at opposite ends, which are adapted to enter into recesses c in the insert member D. These recesses extend transversely through the insert member and are closed by the side plates A A of the wrench. These pintles cooperating with the slots in the insert member prevent the adjusting screw from moving into a position in which the head 0 thereof can move into binding engagement with adjacent parts of the wrench head and thus interfere with the operation of the wrench.

In the assembling of the wrench the two body portions or plates A A are secured together with the insert member D between the head portions thereof. In placing the body parts of the wrench into operative relation to each other the bridge portions 72 enter into the reduced parts 0 of the movable jaw and the plates A A of the wrench and the insert member D are then secured together by any suitable means such for example as rivet-s f or the like. The securing together of these parts of the wrench serves to hold the movable jaw E and the adjusting screw C in their operative positions relatively to the wrench.

The advantages of the wrench described are that the body portion is made entirely of pressed metal so that no machining is necessary on this part of the wrench. The structure described also provides an inexpensive and very etlicient means for adjusting the movable jaw of the wrench, namely the adjusting screw C engaging the threaded hole in the part 6 of the movable jaw and held in place in the slotted parts of the wrench. These means for adjusting the movable can be machined with the least possible diiiiculty, and the use of a screw engaging in a threaded hole avoids the possibility of binding or jamming which frequently occurs on wrenches using a worm for adjusting the movable member. When assembled, the parts of the body of the wrench hold both the movable jaw and the adjusting screw therefor in correct, operative relation to the wrench so that no additional holding or retaining means for the adjusting mechanism are necessary. The use of the insert member, in addition to facilitating the construction of the wrench, also has the advantage of providing a wider bearing face for the fixed jaw, which prevents injury to the work gripped by the wrench. The pintles on the ends of the adjusting screw engaging in the slots in the insert member serve to ensure an' easy operation of the wrench even after the parts thereof have become worn.

In Figs. 81O inclusive is shown a wrench of slightly modified construction having two plates or body portions G G between the head portions of which an insert or spacing member H is secured, the insert member be ing, in the construction shown, identical with the insert member D already described. The body plates G G also are similar to the plates A A described except that the head portions thereof are provided only with openings 9 for the head of the adjusting screw and guide faces or edges are formed on the plates G G by embossing, slotting or cutting out a groove or depression 9 on the inner face of each of the plates. This groove or depression forms guide faces or shoulders g 9 against which the edges of a guide or retaining portion 2' of the movable member or jaw I engage. The guide grooves in. the two plates are arranged oppositely and engage the opposite sides of the retaining portion of the movable member or jaw. in other respects this wrench may be the same in construction as the wrench shown in Figs. l-'?. This modified constrimtion may be employed if it is desired to cover or protect the actuating and guiding mechanism of the movable member.

I claim as my invention:

1. In a wrench, the combination of two sheet metal portions secured together forming the handle and head of the wrench, a movable jaw, an adjusting nut, a metal insert member arranged between said sheet metal portions and forming therewith guide ieans for said movable jaw, and a bearing for said adjusting screw in said metal insertmember.

2. In a wrench, the combination of two sheet metal portions secured together and forming the handle and head of the wrench, said. sheet metal portions being provided with guide portions, a movable jaw adapted to engage said guide portions, actuating means for adjusting said movable jaw, and an insert member arranged between said sheet metal portions and secured thereto, said insert member holding the guide portions of said sheet metal portions in correct relation to said movable jaw and serving with said sheet metal portions to hold said actuating means in operative position in the wrench head.

3. In a wrench, the combination of a movable member having a jaw portion and a guide portion connected with said jaw portion by a reduced neck, a pair of sheet metal body members, parts of which are secured together to form a handle for the wrench and parts of which are spaced apart to receive said neck of said movable member, guide faces on said sheet metal portions with which said guide portion of said movable member is adapted to engage, a spacing member secured between said sheet metal members and which holds said sheet metal portions at proper distances from each other to permit said neck of the movable member to pass between said sheet metal members, and a guide portion on said spacing member for engaging and guiding the under side of said movable member guide portion.

at. In a wrench, the combination of a movable member having a jaw portion an enlarged guide portion and a reduced neck connecting said jaw portion and said enlarged guide portion, a pair of sheet metal body members, parts of which are secured together to form a handle for the wrench and parts of which are spaced apart to receive said neck of said movable member, guide faces on said sheet metal portions with which said guide portion of said movable member is adapted to engage, an adjusting screw engaging in a threaded hole in said guide portion of the movable member, and a spacing member secured between said sheet metal members and holding the same in spaced relation to each other to permit said neck of the movable member to pass between said plates.

5. In a wrench, the combination of a movable member having a jaw portion and a guide portion connected with said aw portion by a reduced neck, a pair of sheet metal body members, parts of which are secured together to form a handle for the wrench and parts of which are spaced apart to receive said neck of said movable member, said sheet metal parts having integral portions forming a fixed jaw, guide faces on said sheet metal portions with which said guide portions of said movable member are adept ed to engage, and a spacing member secured between said sheet metal members to hold the same in spaced relation to each other and having a part extending between said fixed jaw portions of said sheet metal members, to form on said fixed jaw an enlarged gripping face.

6. In a wrench, the combination of a movable member having a jaw portion and a guide portion connected with said jaw por tion by a neck of reduced thickness, a pair of sheet metal body portions having parts at the head of the wrench which are spaced apart to receive said neck, guide faces on said sheet metal portions with which said guide portion of said movable member is adapted to engage and which hold said movable member in operativerelation to the wrench, and means for securing said sheet metal body portions in spaced relations to each other, whereby said movable member is held against movement out of operative relation to said wrench. A

7. In a wrench, the combination of two sheet metal portions having parts which are secured together face to face to form a handle, and integral parts spaced apart and forming a head for the wrench, an insert member arranged between the head portions of said sheet metal portions and secured thereto, a movable jaw slidable in said head,

and an adjusting screw engaging said movable jaw and having pintles on its ends which are adapted to engage in recesses in said insert member for holding said adjusting screw in correct relation to said wrench head.

8. In a wrench, the combination of two sheet metal portions having parts which are secured together face to face to form a handle, and integral parts spaced apart and forming ahead for the wrench, an insert member arranged between the head portions of said sheet metal portions and secured thereto, a movable jaw slidable in said head, and an adjusting screw engaging said movable jaw and having bearing pintles extending beyond the ends thereof, said insert member having transversely extending recesses into which said pintles are adapted to enter, the opposite sides of said recesses being closed by said sheet metal ortions.

I GEORE D. ILLIG.