US1239394A - Combination-tool. - Google Patents

Description

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KRICOR HOVHANNESIAN, 0F MIDDLETOW'N, CONNECTICUT, ASSIGNOR 0F ONE-HALF TO HENRY PILIKIAN.

COMBINATION-TOOL.

Specification of Letters Patent.

Patented Sept. 4:, 191W.

Application filed February 19, 1916. Serial No. 79,387.

To all whom it may concern:

Be it known that I, KnIcoR HovHANnn- SIAN, a citizen of the United States, residing at Middletown, in the county of Mlddlesex and State of Connecticut, have invented certain new and useful Improvements 1n Combination-Tools, of which the following is a specification, reference being bad to the accompanying drawings.

This invention relates to an improved. combination tool and has for its primary object to provide a device which may be serviceably employed for a variety of purposes, but which is relatively simple in its construction and may be manufactured and sold at nominal cost.

It is a more particular object of the invention to provide a tool of the above type including a body, a shank removably and rotatably mounted in said body and provided with a hammer head on one end, means for interchangeably attaching tool elements to the other end of the shank, and means on the tool body for rotating said shank upon an oscillating movement of the tool body.

Itis another important object of. the invention to provide in a tool of the above character, a wrench including an adjustable jaw slidably mounted upon one side of the tool body and cooperating with a fixed jaw or extension on the body, and an adjusting screw rotatably mounted in the fixed jaw and having threaded engagement in the sliding jaw.

lVith the above and other objects in view, my invention consists in the novel features of construction, combination and arrangement of parts to be hereinafter more fully described, claimed and illustrated in the accompanying drawing, in which,

Figure 1 is a side elevation of a combination tool illustrating the present improvements;

Fig. 2 is a sectional view taken on the line 3-3 of Fig. 3;

Fig. 3 is a sectional view on the line 33 of Fig. 2;

Fig. 4 is a plan view illustrating the ratchet mechanism for turning the hammer head and shank;

Fig. 5 is a front elevation of the tool head as shown in Fig. l but showing in connection therewith the tool illustrated in Fig. 8;

Fig. 6 is a detail perspective View of one of the interchangeable tool members; and

Figs. 7 and 8 are detail elevations of other tool members.

Referring in detail to the drawing 5 designates the body of the tool which is in the form of a metal casting and is provided with a longitudinal bore to receive one end of a handle indicated at 6. The forward end of the tool body is provided with a laterally extending j aw 7, and through the body of the tool and the jaw 7 thereof, a transverse opening 8 is bored. The outer end wall of the tool body has an opening 9 formed therein which communicates with the bore 8 and provides means for the insertion of a suitable tool element, whereby sharpened wedges, indicated at 10, may be driven into the end of the handle 6 and said handle spread to force the same into tight frictional engagement against the walls of the handle bore in the tool body 5.

11 designates a detachable hammer head which is formed with a cylindrical shank 12 and an integral toothed flange or ratchet 13 at the juncture of the shank with the head 11. The end of the shank 12 is reduced and rectangularly formed as shown at 14k, to provide an annular shoulder 15 thereon. The shank 12 fits snugly within the bore 8 of the tool body and extends entirely through the jaw 7. Various tool elements are adapted to be connected to the reduced end of the shank 12, and in Fig. 6 I have illustrated a cutting or chipping bit 16 provided with a boss 17 provided with a rectangular annular groove or channel 17. In the front wall of the tool body, a ratchet 18 is fulcrumed as at 18, and is provided with an angular end portion 18 projecting through an opening in the body wall. A coil spring, indicated at 18 is arranged in a socket in the body wall of the tool and bears at one end. against the ratchet 18 and acts to yieldingly force the angular end portion 18 inwardly and into the groove or channel 17 in the boss 17. As is particularly illustrated in Figs. 2 and 3, the lever 18 is seated within a slot produced in the front wall of the tool body and disposed longitudinally thereof, said lever being sub stantially; normally confined within said slot and having one extremity overlying the outer end of the opening. 9 whereby the 5 31 and held by means'of the setscrew'32.

requisite rocking movement may be imparted to the lever 18 in order to disengage the portion 18 from within the groove 17. The chipping bit is provided upon opposite sides oi the boss 17 with a longitudinally extending rib 16 which is adapted to fit within recesses or channels 28 formed in the'jaw extension 7 on the tool body. Thus, it will be seen that when the chipping bit is fitted upon the rectangular end portion 1 1 of the shank 12, the lever 18 will hold "the same in connection with said shank while the rib 16 will prevent any turning movement of the chipping bit. The shank 12 is formed adjacent to the head thereof with a circumferential groove 12, in one side'ofwhich the transverse pin 19, extending through openings in the tool body, is engaged. This pin prevents any longitudinal'movement'ofthe shank 12 in the tool body and retains the same'in place.

The ratchet disk 13 at the base of the hammer head, rests against one side of the tool body and a double pawl '20 is pivotally' mountedintermediate of its ends upon the body 5, as indicated at 21. A; plate 22 is also pivoted upon the 'tool body, as at 23, and in the same a pin 24 is slidably mounted 'andis normally urged outwardly by a spring 25intoengagement with the adjacent edge of the pawl 20 and in line with the pivot thereof. In Fig. 7, I have illustrated a screw driving bit' 26 having a'boss 27 thereon to receive the reduced end 1 1 ofthe shank 12. This boss 27 is formed in a similar manner to the boss on the chipping bit for engagement in the angular end of the ratchet 18 as above described, whereby the screw driving bit is held in connection with therectangular end of the shank 12. "Thus the bit 26is connected to the shank 12 for rotation therewith. When the point of the bitisengaged in the groove in the head of thescrew, the tool body 5 is oscillated or moved alternatelyin opposite directions,

and in the movement of said body in one direction, the pin'24. bears against one end of the pawl20 which has locked engagement with the teeth of the ratchet 13 so as to positively rotatethe shank 12 and thus turn the screw. When the headis moved in the opposite direction, the plate 22 carrying the -spring pressed pin 2st is shifted so that the pin will bear againstthe pawl in line'with its pivot and disengagethe pawl from the ratchet teeth,=thus permitting the reverse movement of the tool-bodywhile the shank 12 remains stationary. In this manner, the screw may be easily and quickly removed or threaded home.

In conjunction with the rotatable shank, a boring bit such as indicated at'30, may also be employed, saidbit having a square end adaptedto be fitted into afsockeflmember .to the'square end of the shank12.

This socket member is provided with a boss in the same manner as the screw driving bit which is adapted to be, detachably connected This is shown in'Fig. 5. Other tools such as a nail extractor, ice pick, etc, may be interchangeably connected to the rotatable shank.

The side wall of the body 5 which is provided on its forward end with the jaw eX- tension? has adove-tail groove or channel 33 cut in its outer face extending longitudinally thereof from the aw 7 to the inner endor' the body. A metalblock iie is keyed orotherwise fixed in the inner end of the channel 33"and' a wrench jaw '35 is formed with a dove-tail rib on oneend' for sliding engagement in the channel"33. To this jaw, one end of an adjusting screw36 is rotatably connected, said screw having threaded engagement in the-block 34L. It willbe manifest that, by turning this screw in either direction, the slidable jaw35-1nay-be adjusted either outwardly or inwardly {toward or from the'fixedstationary jaw7.

Thus,l' have provided in a very simple and compact arrangement, an efficient monkey wrench upon one side of the bodyflof the combination tool.

From the foregoing, the construction,

manner of operation andseveral advantages r of my improved tool will 'be clearly and fully understood. The device is exceedingly simpleandrlurable in its construction and highly e'fficient and convenient in practical use. For the purpose of further securing the handle to the tool body and rendering such connection absolutely. rigid, I preferably provide a number of "pins or rivets 37 extending transversely through the opposed side wallso'f the'tool body and the end of the handle 6.

While I have above described the preferred form and construction of the several elements of my improved combination tool, it is to be understood thatthe device is susceptible of considerable modification therein and I, therefore, reserve the privilege of adopting all such legitimate changes as may be fairly embodied withinthe spirit and scope ofthe invention as claimed.

Having thus fully'described my invention, what I desire to. claim and secureby Letters Patent is "end, means for causing-the rotation ofsaid member around its axis with the'head upon arotative movement of the head in one di rection but permitting the independent rotation ofthe head in the otherdirectiomthe head being'provi'ded with a transversely extending groove disposed at onejend-of the head and intersecting that end of the bore socket to receive the many sided shank, and means engagmg the boss and detach-ably holding the tool in engagement With the 15 shank but permitting the rotation of the tool.

In testimony whereof I hereunto afiix my signature in the presence of two Witnesses.

KRICOR HOVHANNESIAN.

Witnesses:

DANIEL MACDONALD, T. E. FOLEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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