US 1243310 A
Description (OCR text may contain errors)
APPLICATION FILED 050. I. 1915..
Patented Oct. 16, 1917.
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ZENO L-IT'I'MAN, 'OFNEW' YORK, N. Y., ASSI'G'NOR TO ZE-LI'ITIMANUFACTURING COMPANY, A CORPORATION OF NEW YORK.
To all whom it may concern.
Be'it known thatI, ZENO'LITTMAN, a subject of the Emperor of Austria-Hungary,
Tool-Handles, of which the following is a specification.
This invention relates to tool handles of the type in which the tang ofthe tool is forced into a screw-cutting die carried by the handle, whereby threads are formed on the tang to hold the tool in position with respect to the handle. It is an object of} my invention to "provide in a device of thislkind means-independent of the die, engaging the tang and preventinglateral motion of the tool with respectto the handle. I
Another object is'to provide construction and relation of parts whereby assembly is greatly facilitated.
Still another vobjectis to,provide a con- 'struction and relation of parts by reason of which the several components will be rigidly united and whereby likelihood of loosening the parts in operation is minimized.
Other objects and aims of the invention, more or less broad than those stated above, together with the advantages inherent, will be in part obvious and in part specifically referred to in the course of the following description of the elements, combinations, arrangements of parts, and applications of principles constituting the invention; and the scope of protection contemplated will appear from the claims.
In the accompanying drawings, which are to be taken as a part of this specification, and in which I have shown a merely preferred form of embodiment of the invention, Figure 1 is a central longitudinal sectional view, with parts in elevation showing a tool handle made in accordance with my invention, and in engagement with a tool; Fig. 2 is a perspective view of the screw-cutting die; Fig. 3 is a sectional view taken on the line 33 of Fig. 1 looking in the direction of the arrow; and Fig. 4: is a perspective view of the tubular member.
Referring to the numerals on the drawings, there is shown at 4 a tubular member which has one end partially closed in as indicated at 5, the other end being entirely open, and of slightly larger diameter as in- Appli a'tion filedv December 1,1915; SerialNo. 64,437.
I f semen of raters-Patent. Patented oct. 16, 1917.
' 'dic'ated ;at 4, l Vithin the tube there is while the other end bears against and within the cup-shaped member or follower'7, which is centrally apertured as indicated at 8. Into the open end of the tubular member 4 is driven a screw-cutting die indicated by the reference character 9, and best shown in Fig: 2. This cutting die is preferably provided with projections on its outer surface indicated at'lO, so that when it is forced into the'endo'f the tube-4' it is firmly held against rotation therein. The screw-cutting die is 'preventedfrom moving too far toward the closed end of the tube'because it'comes in contact with the shoulder between theparts 4 and at of the tube. The tubular member within the appropriately hollowed handle 12, the relative sizes of the parts being such that thetub'e must'be forced in,"so' that relative rotative movement of the handle or tube is toa large extent prevented by the frictional engagement between them. As a further guarantee against such relative movement and against the coming apart of the device in using, the end of the handle, with the tubular member 4: projecting therefrom, is driven into a ferrule 14, which has a closed end, except for the central aperture 15, corresponding with the aperture 8 of the follower 7. This ferrule is preferably not exactly circular in horizontal cross section, but has recessed portions or bays 16, while it may also have such recessed portions in longitudinal cross section, so that as the handle is driven in the wood of which it is made may spread into these recesses and lock the handle and the ferrule against both rotative and longitudinal displacement relatively to each other. The ferrule prevents movement of the tube at and cutting die 9 because the lower end 17 of the ferrule projects thereunder as shown in Fig. 1, and I prefer to lock the ferrule and the tube 4 against relative rotative movementby pro viding a number of indentations 18 in the outer surface of the ferrule, which may coincide with the indentations of the tube.
In practice the tubular member is first equipped with its spring 6, follower 7 and cutting die 9. Then the tube is inserted also through the aperture 8 of the follower 7, which, because of the spring 6, is constantly urged in a downward directiom-"referring to Fig. 1. The tool is turned, so
as to cut threads on the tang, and these" threads serve to hold the tool firmly within the handle and against relative longitudinal movement, while the ferrule 7 prevents lateral movement of the tang with respect to the handle.
Inasmuch as many changes could be made 7 in the above construction, and many apparently widely different embodiments of my invent-ion could. be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense. I
'It is also to be understood that the lani guage used in the following claims is ini tendedto cover all the generic and specific features'of the invention herein described and all statements of the scope of the invention, WlllCll, as a matter of language,
"might be said to fall therebetween.
I claim: 7 i i 1; A device of the kind described comprising-a handle having an aXial aperture therein, a tubular member Within said aperture,
a coiled spring within said tubular mem ber, an abutment within said tubular member against which one end of the spring rests, a follower within the tubular member engaging the opposite end of the spring,
2. A device of the'kind described comprising a handle having an axial aperture therein, a I tubular member within said aperture partly closed at one end and provided with an en largement at its oppsite end, a coiled spring said follower'having a central aperture, and
within and engaging the partly closed end of the tubular member, a follower within the tubular member resting against the spring, said follower having a central aperture, and a screw cutting die ornut immovably mounted withinthe enlarged opened .end of the tubular member thereby maintaining all of the assembled elements as an entirety within thetubular member.
In testimony whereof I affix my signature.
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v Washington, D. 0.?