US1490902A - Pliers, wrench, and the like - Google Patents

Description

A ril 22, 1924. 1,490,902

A. C. ALLAN PLIERS, WRENCH, AND THE LIKE Filed April 18. 1922 I N VEN TOR.

ATTORNEY.

Patented Apr. 22, 1924.

' UNITED STATES ALLEN'G. ALLAN, or BARABO'O, WISCONSIN.

Primes, WRENCH, AND me LIKE.

Application med April 18, 1922. Serial n). 555,329.

To all whom it may concern:

Be it known that I, ALLEN C. ALLAN, a

citizen of the United States,residingat Baraboo, in the county of Sauk and State of 5 Wisconsin, have invented certain new and useful Improvements in Pliers, Wrenches, and the like, of which the following is'a specification. I

My invention pertainsto wrenches, pliers, and similar tools, and relates more particularly to their features and elements of construction concerning their fulcrum mount= ings with reference to one another and the means for controlling and governing the action of their work-grippingjaws.

The leading aim and purpose'of the in vention is the production of a tool of this general type which may bereadilyand accurately applied to the'body to be operated upon which holds to such body firmly and securely, which is simple in contsruction, which is composed of but few parts, which is economical tomanufacture, which is easily operated even by novices, and which is unlikely to become damaged or injured in service. 1 Y

Stated differently, the invention pertains to new and improved styles of tools of the character specified adapted for use witherticles of various sizes and shapes and par ticularly designed for quick and proper application thereto, the new devices being what might be termed semi-automatic in that, their constructions greatly assist in their rapid tional and structural standpoints, in the accompanying drawing I have illustrated a desirable and preferred embodiment of the invention and throughout the several views of such drawing like reference characters have been employed to designate the same parts.

and accurate associationwith the body to In these drawings:

tion;

Figure 2 is a similar view with such supplemental fulcrum element in inoperative position;

v Figur 1 illustrates partly in elevation and partly 1n section the improved tool with the auxlliary fulcrum member in operative posi- Figure 3 is an edge view of the tool; and I Figure 4 is a perspective view of the fulcrum member referred to. 1

Referring to the several views of the drawing, it will be perceived thatvthe tool comprises a suitable, curved handle element 10 equipped at one end with a laterally-extended work-engaging jawl, the intermediat portion of the part 10*being slotted or out outto provide a transverse, more or less diagonally-disposed or oblique groove or recess 11 with end walls 12 and 13, the thickness of the Walls of member 10 at its recessed portion being practically one-quarter that of the main body of. the handle element. I Co-operating with such handle -member is a second or complementary, curved, handle element 14 having at one .end a-jaw 2fixed thereto by a pin 3 or in anyother appropriate manner. This jaw is of the full thickness of the handle member but the into the operative relationshown in Figure I 1 or turned into the inoperative position depicted in Figure 2. r

The parts of the tool are so shaped, formed, and combined, that,when the handle members 10 and 14: are squeezed or. pressed together to grasp a body such as a nut or pipe between the adjacent faces of thetwo jaws '1' and 2 the edge of the section of member 14 bears either on the fulcrum member-6 if it is in position for use as shown in Figure 1 or on the end wall 13 of the groove if the part 6 is swung back into inoperative position as illustrated in Figure 2, and at the same time the edge of jaw 2 presses against Ehe adjacent edge face of the handle memer l0.

Ezra

Because of the sliding connection between the two main elements of the tool, its jaws may be quickly adjusted to the body to be grasped thereby, and, because of the several sliding bearings between the two members positioned and related as shown, an effective and efficient lever and fulcrum arrangement is secured for holding the body between the jaws with the expenditure of a relatively small amount of effort on the part of the operator.

Also the wrench may be readily and quickly adjusted with one hand to diflerent dimensions between the jaws ready for co operation with nuts or other bodies of different sizes.

It willbe seen from the drawing that the tool comprises as its principal elements two associated or crossed-levers 10 andf14,the former being slotted for the extension of the latter therethrough, but withdrawal of the part l l from the part 10 is prevented by reason of the fact that its jaw and the main body of the handle'are thicker than the width of the slot 11 which accommo- 7 dates its portion of reduced thickness.

In manufacturing the appliance the member 10 is drop forged with the side walls of the slot 11 separated sufficiently for the passage of the jaw 2 therethrough and after the assembly of the two parts these separated walls are flattened out preventing disconnection of the two elements.

Or, if preferred, the part 10 may, be made originally as shown in the drawing and the jaw 2 afiixed to the member 14 after it has'been projected through the slot.

As willbe-perceived, the element 6 is used when bodies of small dimensions are to be grasped by the jaws and it is thrown out of the way into inoperative position when larger bodies are to be operated upon.

In all cases, however, the member M has two bearing points on'the companion member thus producing adequate leverage for the accomplishment of all types of work and preventing the jaws from tending to separate from one another as the power is applied to the handle elements.

This invention is not limited and restricted to the precise and exact features of construction illustrated and described since these may be varied or changed within relatively wide limits without departure from the substance of the invention and without sacrificing any of its substantial benefits and advantages.

I claim:

1. A tool of the character described, comprising in combination, two crossed handle elements provided at their corresponding ends with co-operating work-clamping jaws, one of said elements having a transverse cut-away portion providing a recess slidingly accommodating an intermediate portionof the companion handle element, the latter having a curved edge forming a sliding'adjustable fulcrum adapted to bear onthe end wall of'said recess remote from said clamping jaws and having a part adjacent to its; jaw adapted to bear adjustably on the adjacent edge of the companion handle element, and a movable member adapted to be shifted into and out of operative position and when in operative position forming the end wall of said handle recess on which the other handle element bears, whereby when the jaws clamp a'body between them both of said bearings of said handle element on the companion handle element will be operative.- I

2. A tool of the character described, comprising in combination, two crossed handle elements provided at their corresponding ends with co-operating work-clamping aws',

one of said elements having a transverse cut-away portion providing a recess slidingly accommodating, the other handle element, the latter having a curved edge forming a sliding adjustablefulcrum' adapted to. bear on the end wall of said recess re mote from said clamping jaws and having a part adjacent to its jaw adapted to bear adjustably onan edgeof said companion handle element, and a member hinged to said first handle element adapted [to be rocked into and outofoperative position and when in operativeposition forming the end wall of saidh'andleirecess on which the other handle element bears, whereby when the jaws clamp a body between them both of said bearings of said handle element on the companion handle element will be operative. V

Inwitness whereof I have hereunto set my hand and seal;

ALLEN p o. ALLAN. a 8.]

Images