US2627078A - Tool with extension spaced from head - Google Patents

Description

Feb. 3, 1953 s ELIOT 2,627,078

TOOL WITH EXTENSION SPACED FROM HEAD Filed May 20, 1950 1720622 tor,

Patented Feb. 3, 1953 OFFICE TOOL WITH EXTENSION SPACED FROM HEAD Samuel Eliot, Newton, Mass.

Application May 20, 1950, Serial No. 163,164

3 Claims.

This invention relates to a general utility and tool of the percussive or hammer type in which there is provided a handle and a striking head transversely fixed at the end of the handle, as is commonly embodied in hammers used by carpenters, masons, machinists, and various other artisans.

In using a hand tool of they hammer class, it

often is the case that the worker finds a need forusing the tool in hand to secure various other kinds of mechanical advantage, such as to apply a leverage, to jimmy a clinched member, and

generally to pull, pry, cut, straighten, andturn various structural members, as well as to hold or rotate annular bodies in the manner of a wrench.

The present invention aims to provide a general utility type of hand tool which is designed to meet many of such needs of the worker, and to devise in one hand tool a combination of striking head and handle member with certain other instrumentalities which are so arranged as to cooperate with the handle and striking head in one way or another to provide for varied novel functioning. It is also an object of the invention to provide a simple, efficient, and conveniently applied hand tool which can be cheaply manufactured and which is extremely durable and wear-resistant.

These and other objects and novel features will be more fully understood and appreciated from the following description of a preferred embodiment of the invention selected for purposes of illustration and shown in the accompanying drawings, in which:

Fig. 1 is a side elevational view of the improved general utility hand tool of the invention;

7 Fig. 2 is a fragmentary front elevational view of the striking head of the tool and adjacent portions 11 6 7 01;

Fig .3 is a plan view; and

Fig. 4 is a vertical cross-section taken on the line 44 of Fig. 3, and further sug estin ne typical application of the device utilized as a wrench.

Referring in detail to the structure shown in the drawings, numeral Ill denotes a handle of wood, aluminum or other suitable material, which has its upper end solidly fitted into the body portion ll of the tool, as may be more clearly.

o erV d n F 51 "i- AS Ii Wn there n the body 1 porti n l? is pr era l ons ructed with a handle openi of ome, ta ered sha e throuen hich is made an integral part of the tool and extends transversely between two opposite sides of the body portion I2 so that it serves to divide the I handle extremity into two split ends, as suggested in Fig. 3, ,TheSe split ends are conveniently cut oif and made to conform to the contour of the upper side of the hammer member.

Extending upwardly from the body portion l2 along one side thereof is a raised striking head l6 formed with a flat striking face IS. The face l8 may be located in various positions of angularity with respect to the vertical axis of the handle [0, and preferably will be set in such relative position that the face lies in a plane nearly parallel to the vertical axis of the handle, thereby taking advantage of the extended leverage resulting from the projection of the striking head above the extremity of the handle. For some purposes this extended leverage effect is a desirable advantage and it will be seen that the striking head presents a rounded upper surface 26 which lies above and in back of the striking face [8 and which projects well above the end of the handle extremity II] to make possible other advantages hereinafter described in connection with other parts of the tool.

As an instance of one desirable application of the raised striking head, attention is directed to the opening 22 transversely located through the head which may be employed, for example, in

straightening lengths of bent pipe or other tubular bodies which have been twisted or deformed out of a straight line position. By slipping such a tubular body or pipe through the hole 22 of the striking head, a highly desirable lifting or twisting force may be exerted. By wedging the annular opening 22 into engaged relation with such atubular body, an excellent torque or twisting force maybe delivered where. it is desired to deform of twist the work which is being held. If desired, means consisting of serrated edges, or other roughened surfaces, or other holding devices, may be incorporated in the hammer surfaces constituting the opening 22 for further facilitating engagement of this part of the hammer with various types of work'as, for example, in holding and stretching barbed Wire, rope, and the like. f I p At the under side of the head Hi there is also provided means for chopping or cutting. The u rm ne were or pl con en e tl takeh t rmp -t o. waded-revert cuttin edge .24 and 26.1 These are conveniently formed by removing intermediate portions 23 of the tool so that they lie at a lower level than the cutting with dressing poultry, cutting wood, rope, pipe,

cable, and various other bodies. Since the cutting edges are arranged at one side of the handle below the striking head, it is convenient to use the tool in the same relative position as is assumed in carrying out a hammering or striking operation. Thus at one and the same time, a workman may first strike a percussive blow and by merely advancing the lead of the tool slightly, effect a cutting or shearing blow, a function which, in many instances, saves a workman time and effort in order to perform a desired operation.

At the opposite side of the body portion l2, from that occupied by the striking head, there is provided an extension 30 which projects upwardly at an angle to the handle I!) in a position such that it may constitute a lever portion. The effect of the lever is accentuated by forming the extension with a lower convex surface 32 which functions in the nature of a pinch bar or similar tool to pry or pull apart clinched members, as well as achieving various other operations.

To further increase utility in this respect, the extension 30 is preferably bifurcated to form an inverted claw which may be used in the ordinary manner for removing nails, spikes, and other holding devices. It will be observed that with the claw in its inverted, position, as described,

there is afforded a leverage which is developed along an opposite line of leverage to that ordinarily available in a carpenters hammer where the claw is curved in the opposite dimension. For some types of operation where it is impossible to apply the handle of the conventional carpenters hammer, the inverted claw arrangement is extremely desirable and effective. Also, the outside curved face of the claw 32 can be used as a curved striking head or hammer for shaping tin or copper sheeting, as well as hammering out ious types of annular bodies, such. as pipes, or

round cross-section stock of various classes of materials, as well as square and hexagonal nuts of varying diameters.

Since it may also be desirable to exert a rotative force on such bodies, there has further been provided teeth 34 extending transversely across the curved upper side of the extension 30 in stepped relation, asshown in Fig. 4, and these "teeth cooperate with the relatively-more sharply curved upper side of the-striking head IE to en age a work piece 36 and permit a turning force to be applied through the handle [0. .Since the upper side of the striking head l8 presents a varying arc of curvature, it will be apparent that a considerable range of sizes of tubular or annular bodies may be dealt with quickly and conveniently in the manner of a set Stilson wrench. For example, the arrangement described may be applied as a bung puller, a pipe fitting tool for usage in connection with large nut or bolt heads, either round or square, and various other similar applications. The improved tool may also be employed very advantageously in breaking, chopping and shearing ice deposits as, for example, on board ship and at other places Where icy conditions are encountered.

The tool described has utility in many different connections wherein the component parts may cooperate with one another in a desirable manner. Particularly this tool was devised to serve as a wrecking instrument and an ice breaking tool. For example, in breaking through a plaster wall or in breaking into a thin sheet of ice, the need is for an impact head which can be driven through the yieldable body of plaster, ice, or similar substances. However, in the usual hammering devices for this purpose the impact head tends to go through too far, with the result that the neck of the handle of the tool has to-act as a stop element, which is undesirable for various reasons. It is pointed out that by forming the extension 32 of the tapered body portion such that this extension projects upwardly and angularly away from the impact head, there is produced by the merging of this extension, with the body portion, a useful elongated body section which operates to limit the extent to which the tool head may be driven into a yieldable body.

Moreover, assuming, for example, that the tool head has been driven into a plaster and lathe wall and that the extension 32 comes to bear on the exterior surface of the wall, perhaps bearing against a stud, or other structure member, the body portion handle and tool head can then be rotated around the extension which acts as a fulcrum, and a very desirable leverage and tearing effect can be developed, particularly on a body such as one of plaster or a sheet of ice. The same general effect may be produced in breaking through certain types of cartons made of heavy corrugated paper and reinforced anelling. In the case of paper cartons or paper panels, a further desirable effect has been found to be possible by the limited shearing action of the two edges which extend from the fiat face of the tool head downwardly and inwardly to the body portion in parallel spaced-apart and relieved relationship. Moreover, when the tool is rotated with the extension 32 functioning as a fulcrum the head and cutting edges can cooperate to simultaneously cut and lift out a partially severed tab which is useful in breaking through certain types of packing cases.

end of the pipe may be passed through the bore -inthe tool head and the handle, 'body portion,

and extension 32 are-then rotated for a short are until the extension bears against the supporting surface to which the pipe is secured. The extension then constitutes a fulcrum and the handle and body portion, together with the tool head and the pipe, are rotated about this fulcrum with the pipe being subjected to a leverage of considerable magnitude which can produce a desirable bending.

Various other situations suggest themselves where the several different features of the tool may cooperate with one another to produce useful operations.

While I have shown a preferred embodiment of the invention, it should be understood that changes and modifications may be resorted to in keeping with the spirit of the invention as defined in the appended claims.

Having thus described my invention, what I desire to claim as new is:

1. An improved hand tool including a tapering body portion having a handle aperture formed therethrough, a handle secured in the aperture, said body portion including an annularly shaped tool head which extends upwardly and angularly away from the body portion at one side thereof, said tool head presenting a fiat striking surface, an extension element extending upwardly and angularly away from the body portion in an opposite direction from the tool head, said extension and body portion cooperating to form an elongated body section which limits the extent to which the tool head may be driven into a yieldable body, and said extension, when the tool head has been embedded in a yieldable body, comprising a fulcrum about which the body portion and handle may be rotated to remove the tool head from the yieldable body.

2. A structure as defined in claim 1, in which the tool head is further formed with two spacedapart relieved cutting edges which extend from the flat striking face of the tool head inwardly and downwardly to merge with the said body portion, said cutting edges being adapted to out two spaced-apart parallel kerfs.

3. A structure as defined in claim 1, in which the tool head is formed with a transverse bore extending substantially at right angles to the axis of the said handle, said bore being adapted to receive therein a tubular member and to exert a force on the tubular member when the body portion and tool head are rotated about the extension element with the latter in a rigidly supported position.

1 SAMUEL ELIOT.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date D. 54,673 Williams Mar. 9, 1920 238,582 Grubb Mar. 8, 1881 935,459 Carr Sept. 28, 1909 1,562,154 Erickson Nov. 17, 1925 1,664,594 Cummings Apr. 3, 1928 1,896,437 Allen Feb. '7, 1933 1,964,121 Humburg June 26, 1934 FOREIGN PATENTS Number Country Date 10,650 Denmark Mar. 23, 1908

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