US2089121A - Composite tool - Google Patents

Description

F. c. HARTUNG COMPOS ITE TOOL Filed May 8. 1935 2 Sheets-#Sheet l QW NN vm Wm, uw) mm, um.

F. C. HARTUNG COMPOSITE TOOL Y Filed May 8, 1935 2 Sheets-Sheet 2 Patented Aug. 3, 1937 UNITED 'sTTEs PATENT oil-Fica COMPOSITE TOOL Felix C. Hartung, Chicago, Ill.

Application May 8, 1935, Serial No. 20,494

1 Claim.

This invention relates to a composite tool and, more particularly, to a handle adapted to be used in combination with a plurality of tools. Y

One feature of this invention is that it provides a complete set of tools in convenient and compact form; another feature of this invention is that it enables a plurality of tools to be interchangeably used with one handle; another feature of this invention is that it enables screws, and the like, to be lstarted in relatively inaccessible places.

Other features and advantages of this invention will be apparent from the following specification and the drawings, in which- Figure 1 is a top plan view of the handle; Fig. 2 is a sectional view along the line 2-2 of Fig. 1; Fig. 3 is a sectional view showing a tool in place in the handle; Fig. 4 is a fragmentary elevation of an additional tool; Fig. 5 is a sectional view of the handle and an extension member; Fig. 6 is a sectional view along the line --B of Fig. 5; Fig. l is a sectional view along the line i-l of Fig. 5; Fig. 8 shows still anothertool in combination with the handle; Fig. 9 is a sectional view showing two extension members; Fig. 10 is a side elevation showing the chuck member in combination with the handle; Fig. 1l is a sectional view of the chuck member; Fig. 12 is a view of the handle in combination with an awl; Fig. 13 is a view of the tool as a hammer; and Fig. 14 is a view of the tool as a saw.

In the particular embodiment of this invention illustrated herewith, the reference numeral 2li indicates a handle. This handle is provided with a socket opening 2| therein. This opening extends longitudinally into the handle, and is substantially coaxial with the longitudinal axis of the handle. A socket member 22 is inserted in this opening. This socket member is polygonal in cross-sectional shape, and is closed at the bottom by the metal butt plate 23. The socket member has in one side thereof an opening 24 in which lies va ball 25, which ball may be of steel or other hard and long-wearing metal. The ball projects slightly within the socket member, and is yieldingly maintained in this position by a. spring 26. The spring is maintained in proper position by a screw closure member 2l in the handle. The socket member 22 is adapted to receive the socket-engaging portion of various tools, as for example, the screw-driver 28. The socket-engaging portion of the tool has a polygonal cross-sectional shape similar to that of the socket member, and is of such a size as to be a sliding fit in said socket member.

(Cl. 14S- 50) Various tools may be conveniently used in combination with the handle 20. For example, Fig. 3 illustrates ascrew-driver blade 28 in combination withthe handle; Fig. 8 illustrates a tool having a blade portion 29 particularly adapted for use in removing cylinders from a cylinder lock; Fig. l2 shows the composite tool as an awl or ice-pick, use being made of the awl member 30; Fig. 13 shows the composite tool'as a hammer, the awl member 30 being reversed in the handle 20 and a hammer head 3| being screwed onto the threaded portion 32 of the awl member; and Fig. 14 shows the tool as a. saw, with the saw frame 44 in operative combination with the handle 20, the frame 44 having mounted therein a saw blade 45. It is to be understood that any type of tool member may be used in combination with the handle to form the desired complete tool. It is only necessary that the particular tool member desired have a socket-engaging portion of such size and shape as to form a sliding t in the socket member 22, and to extend sufliciently far therein that the spring-pressed ball 25 is able to yieldingly engage said socket-engaging portion and to hold the tool member in operative combination with the handle.

The tool is also provided with an extension member 33. This extension member is of similar polygonal shape but is adapted to slidably engage the exterior of the socket member 22 throughout that portion which projects from the handle. The front end of the handle is provided with an end plate or cap 34, against which the extension member abuts. The extension member is provided with openings 35 and 36 therethrough, in which openings are balls 31 and 38. These balls are yieldingly held in said holes by the spring clip 39, which clip is centrally attached to the extension member by any convenient means, as the rivet 40. This extension member is adapted to receive tool members having a socket-engaging portion larger than, may be used in the socket member 22. For example, the chuck member 4l has a socket-engaging portion 42 adapted to be received by the extension member 33. The spring-pressed balls 31 and 38 serve to yieldingly engage the socket-engaging portion of the tool member and the socket member, respectively, and to hold the entire tool in operative combination. The extension member 33 is also adapted to receive additional extension membersy furnishing a socket of the same size as the socket member 22, as for example, the additional extension 43. This additional extension may be .used when an extended tool is required. Figure 9, for example. shows a longer screw-driver having an enlarged blade member 52. This member 52 is adapted to be received by the additional extension 43 projectingibeyond the screw-driver 2l, and it has a notch l in the end thereof received by said extension, which notch abuts against the end of the screw-driver 28. When this tool is in use compression strains are taken by the screwdriver 2B and torque strains by both the screwdriver and the additional extension 43.

The chuck mem'ber 4I comprises a polygonal sleeve portion 46, which sleeve portion has an expanded end 41. The sleeve has slidably mounted therein a chuck member 48, which chuck member has jaws or clip members 49 of springy metal on one end thereof, and a socketengaging portion 42 on the other end thereof. The socket-engaging member 42 is threaded and adapted to receive a nut 50, which nut forms a tightening means adapted to draw the clip members down into the expanded end 41 of the tubular member 46, and thus to cause them to grip an object, as for example, the screw 5I. The

chuck member 48 has a polygonal opening com` pletely therethrough, which opening is suiliciently large to permit the blade end of a screwdriver, as for example, the tool member 28, to be inserted therethrough in order to form a driving means capable of driving the screw into the desired hole or opening. The chuck member. screw-driver blade, and handle cooperate to form a tool capable of holding a screw in operative relation with the end of the screw-driver blade so that it may be driven or set in a hole inaccessible to the fingers. This is an advantage in enabling a screw to be started at the bottom of a countersunk hole, for example, since the entire operation of starting and driving the screw may be performed by the tool. After the screw has been driven in far enough to'have a good grip, the nut or tightening means 50 is loosened suillciently to enable the tool to be withdrawn, whereupon the chuck member may be either removed from the screw-driver blade or slid further thereon, in either case enabling the tool to be used as an ordinary screw-driver in order to drive the screw completely home.

While I have shown and described certain embodiments of my invention, it is to be understood that it is capable of many modifications. Changes, therefore, in the constructionand arrangement may be made without departing from the spirit and scope of the invention as disclosed in the appended claim, in which it is my intention to claim all novelty inherent in my invention as broadly as permissible, in view of the prior art.

What I claim as new, and desire to secure by Letters Patent, is:

Apparatus of the character described, including: a handle having a socket opening therein substantially coaxial with the longitudinal axis of said handle; a polygonal socket member in said opening, said member being adapted to receive a screw driver blade having a polygonal socketengaging portion, whereby said screw driver is maintained in operative combination with said handle; an extension member adapted to surround said blade and project beyond the end thereof and a notched blade member adapted to be received by said extension member and to have lsaid notch engage said screw driver blade, where-

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