|Publication number||US2572237 A|
|Publication date||Oct 23, 1951|
|Filing date||Jan 12, 1946|
|Priority date||Jan 12, 1946|
|Publication number||US 2572237 A, US 2572237A, US-A-2572237, US2572237 A, US2572237A|
|Inventors||David Andrews Howard|
|Original Assignee||Clair Hicks|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (10), Referenced by (13), Classifications (6)|
|External Links: USPTO, USPTO Assignment, Espacenet|
Oct. 23, 1951 ANDREWS 2,572,237
COMBINATION TOOL Filed-Jan. 12, 1946 INVENTOR y HOWARD. D. ANDREWS A ORNEY Patented Oct. 23, 1951 COMBINATION 'rooL Howard David; Andrews, Salinas, Calif.,ass ignor of one-half to Clair Hicks, Salinas, Calif.
Application January 12, 1946, Serial No. 640,884
The. present invention relates to. improvements in combination tools, and its: principal object is toprovide a combination tool particularly adapted for use in. connection with the construction of concrete forms, although it also has many advantages when used as a general household tool for many different purposes.
More,- particularly, it is proposed to, provide a convenient tool that combines the various features of av hammer, a pair of pliers, av wire-cutting tool and a tool for tightening a wire upon a concrete form.
It is further proposed to provide a tool of the character described in which the variousfeatures are combined in such amanner that the hammer effect may be'utilizedincombination with thewire cutter for forcing the cutters through the wire.
It is still further-proposed to arrange the wire puller in such a manner that a short; of wire projecting from a concrete form may be gripped with the tool lying flat against theform and may be pulled away from the form by forcing the tool into perpendicular position with respect to the form.
And finally, it is proposed to arrange the hammer head with respect to the other parts so that after the tool has reached a perpendicular position, the pulling action may be continued by using the hammer head as a fulcrum member.
Further objects and advantages of my invention will appear as the specification proceeds, and the novel features of the tool will be fully defined in the claim attached hereto.
The preferred form of my invention is illustrated in the accompanying drawing, forming part of this application, in which:
Figure 1 shows a side view of my combination tool on the line 22 of Figure 3;
Figure 2, a side view of the same taken from the opposite side on the line 33 of Figure 1;
Figure 3, a top plan View of the combination tool;
Figure 4, a fragmentary section taken along line 4-4 of Figure 2; and
Figure 5, a section taken along line 5-5 of Figure 2.
While I have shown only the preferred form of -my invention, it should be understood that various changes or modifications may be made within the scope of the claims hereto attached, without departing from the spirit of the inven- 'tion.
Referring to the drawing in detail, my com- 1 'bination tool comprises in its principal features,
2. a pairof levers 5 pivoted together as. atfi soasto provide a pair of cooperating jaws? on one side of the pivot, and a pair of cooperating handzles. 8 on the other side of the pivot.
The levers 5 may be shaped. somewhat'like a pair of conventional pliers exceptfor the features outlined hereinafter, and except for the fact that the jaws are made somewhat longer to. accommodate-the various parts: serving the purposes of the present invention.
The levers are-formed, around the pivot 6:, with disc-shaped bearing faces, as at 9-; and these discs may be provided with conventional. cooperative wire cutting slots It in the edges thereof.
The jaws are formed; in their contactingyfaces, with a pair of cooperating, tapered cutting edges I I adjacent the discs, the cutting edges extending lengthwise of the jawsand being preferably .oiil set so as to be near-one-sctof .side faces, as shown in Figure 4.
Just. beyond the cutting edges, the jaws are formed with registering recesses: I2, preferably semi-cylindrical; inform. and: adaptedto;- gripia wire therebetween. These recesses extend transversely through the width of the jaws.
The extreme ends of the jaws extend through a considerable distance beyond the recess and have fiat confronting faces I3 and cam-shaped substantially paraboli'cal outer faces I4. The confronting faces are preferably knurled for better gripping action and are dimensioned to be substantially square, as shown in Fig. 5.
In the region opposite the cutting edges I I, the jaws are formed with opposite extensions I5 and I6 to form a hammer head, the extension I5 hav-- ing a striking face [1 and the extension It being curved in its outer face, as at I8, and formed with claws I 9 for pulling nails. The curved outer face of extension I6 is substantially tangent to the recesses I2, and the latter are spaced from the pivot B sufiiciently far to provide space for the cutters II positioned substantially opposite the extension I6.
In operation, the tool may be used in the conventional manner as a hammer, or as a pair of pliers.
For cutting wire, the operator may use the recesses I ll or the cutting edges I I.
It will be noted that the two extensions I5 and I6 are substantially in line with the cutting edges I I, and that when a wire is confined between the cutting edges and the hammer is swung for strik ing an object, the force of the blow will cause the cutting edges to cut through the wire.
. In building concrete forms two walls, usually '01 wood, are held in spaced relation by interposed cleats, and the walls are kept from spreading by means of wire ties.
My tool is particularly useful in tightening the wires. If one end of a wire projects beyond the outside of the board, it may be gripped between the recesses i2, with the tool lying flat against the wall.
The wire may then be drawn outward by pulling the handles away from the wall, with the tips of the jaws serving as a pivot or fulcrum.
When the tool has reached a perpendicular position with respect to the wall, the operator may then continue the pull by swinging the tool sidewise, using the outer edge of the extension H; as a fulcrum.
Thus, the wire may be stretched very efficiently by a quick jerk of the handles away from the wall followed by a rolling sidewise motion.
The knurled faces l3 may be used as gripping faces, but they also serve as stops to prevent impact of the cutting edges upon one another on completion of the cut.
In a combination tool including a pair of crossed pivotally connected handles, each of said handles having outwardly of the pivotal connection thereof integral cooperable jaws, said jaws being adapted to be moved to and away from each other by movement of the handles, each of the jaws outwardly of the pivotal connection including abutting faces, and immediately outwardly of which and in alignment with said pivotal connection each jaw being provided with a semicircular recess that extends transversely from opposite sides thereof, and when said jaws are brought together the semi-circular recesses jointly defining a complete circular recess for closely gripping a wire, said jaws having end portions extending outwardly a substantial distance beyond the semicircular recesses therein, said end portions having flat side faces and inner continuous flat faces in abutting relationship, said end portions of the jaws when brought together serving as a fulcrum for the tool, and a lateral extension projecting from one of the jaws at a point immediately above the semicircular recess therein, said extension having a curved fulcrum face substantially tangent to the upper portions of the semicircular recesses when said end portions of the jaws are in abutting relationship, whereby when the handles of the tool are gripped in the hand with the tool disposed lengthwise and a side face thereof substantially flat against the surface of an object, and a wire projecting outwardly and at a right angle therefrom is gripped in the said recesses of the jaws, and the tool is first moved to a substantial right angular position with respect to the said surface with the said outer end portions of the jaws serving as a fulcrum in this respect, and the tool is then moved upon the curved surface of said lateral extension as a fulcrum in a different direction from which it is first moved, the wire that is gripped by the tool and the tool are doubly fulcrumed thereby enabling the wire to be tightly drawn outwardly from the said surface.
HOWARD DAVID ANDREWS.
REFERENCES CITED The following references are of record in the file of this patent:
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|U.S. Classification||254/251, 7/133, 7/137|