US323145A - Island - Google Patents

Description

(No Model.)

\ C. HERMANN.

TOOL HANDLE.

No. 323,145. Patented July 28, 1885.

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CHRISTIAN HERMANN, OF BRISTOL, RHODE ISLAND.

TOOL-HANDLE.

SPECIFICATION forming part of Letters Patent N. 323,145, dated July 2a, 1885.

Application filed January 2, 1855.A (No model.)

T0 @ZZ whom it may concern,.-

Be it known that I, GHRIsrIAN HERMANN, of Bristol, in the county of Bristol and State of Rhode Island, have invented a new and useful Improvement in Ratchet Tool-Handles, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to separable handles for auger-bits,gimlets,screw-drivers,and tools of that class generally.

The objects of my invention are to provide a simple and efficient ratchet-handle in which the action of the ratchet may be readily reversed, and the construction of which shall be materially simplified. Furthermore, to provide a simple and convenient attachment for securing the handle tothe tool, and for detaching it therefrom.

To the above purposes my invention consists in the peculiar and novel construction and arrangement of the ratchet-handle, and also in the peculiar and novel construction and arrangement of the attachment for holding the tool, all as hereinafter described and claimed.

In order that my invention may be fully understood, I will proceed to describe it with reference to the accompanying drawings, in which- Figure lis a side elevation of a ratchet-ha dle constructed according to my invention.

Fig. 2 is an under side plan view of the same; Fig. 3 is an under side plan view of a modified form of handle constructed in accordance with myinvention. Fig. 4 is a side elevation of a still further modification of the handle embodying my invention with atool attached. Fig. 5 is,a central vertical longitudinal section ofthe same. Fig. 6 is a central horizontal longitudinal section of the same. Fig. 7 is a vertical cross-section of my improved handies, taken on a plane through the ratchetsleeve.

Before entering into a detailed description of my invention Ideem it desirable to state that the class of handles to which my invention relates have to be used under varying conditions as to the positions of objects upon which the device is to operate. Thus in Fig.

3 the handle is shown as having two arms,

and this handle could not be used on an object situated in the angle of two surfaces of any considerable height. The forni of handle shown in Figs. 4, 5, and 6 is capable of operating ordinarily in such situations, while if the point to be operated upon sets very close to the meeting line of the two surfaces the handle shown in Figs. 1 and 2 would be suitable for the purpose. Thus in Figs. l and 2 the handle has a single arm, a; in Fig. 3 the handle has two arms, a', and in Figs. 4, 5, and 6 the handle has a single arm, c2, and also a comparatively slight oppositely-disposed extension, al, the purpose of which will hereinafter be stated. v

A designates an enlargement, which, as shown in the drawings, may be of approximately cylindrical form externally, and through the center of which is formed a plain annular bore. In the device shown Jin Figs. 1, 2, 4, 5, and 6 this hollow enlargement is situated at one end of the arm of the handle, and in the iirst two figures forms the extremity of the device, while in the latter three figures said enlargement is near the extremity which is formed by the extension a3. Within this enlargement or hub, as it may be termed, is placed the ratchet-sleeve B. The said sleeve is of cylindrical form, of such dimensions as to t properly within the bore of the enlargement A, and to turn freely therein. At its upper end this ratchet-sleeve is formed with an overhanging cap, b, the edges of which lap over the upper end of the bore of the enlargement A, and thus support said sleeve within the bore of the enlargement. The outer sides of the sleeve B are formed with teeth b, which have sides of equal length. This sleeve is formed with an angular central bore which is preferably tapered from its lower to its upper end and extends longitudinally of the sleeve. This angular bore is designed to receive the shank of the tool, as hereinafter described.

C designates a collar which iits around the lower end of the sleeve B, and the upper part of which rests against the lower face of the enlargement A, and also against the lower ends of the teeth b. This collar is secured to the lower end of the sleeve B, by means of one or more screws, b2, as shown in the drawings.

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In Figs. l, 2, 4, and 5 the screws are shown as passing horizontally through apertures in the collar and extending into the sides of the sleeve B, while in Fig. 3 a single screw is used, which passes vertically upward through the collar and into the lower end of the sleeve.

D designates a click, dog, or pawl, which is arranged to engage at its inner end with the teeth b of the ratchet-sleeve B. This click or pin may be arranged in various positions upon the handle. Thus in Fig. 2 the pin is shown as set within a socket, e, which is cast between the arms a, by which the arm a is joined to the enlargement A. In Fig. 3 the pin D works within a socket, a5, which is cast obliquely upon one side of the handle. In Figs. 4, 5, and 6 the pin .D works within the extension as. In either event the pin is provided with a lip, d, which engages with the teeth of the ratchetsleeve, and carries a pin, d', which enters a recess or notch, n, formed in the outer end of the socket or extension in which said pin works. rlhe pin is turned down or reduced a portion of its length, and the bore in the socket or extension at one end is made smaller to correspond, so that a space is formed to re ceive a spiral spring, S, which surrounds the reduced portion of the pin, and the ends of which spring are conned between the shoulder of the pin and that of the bore. The spring serves to throw the pin inward, so that its lip shall engage between the ratchet-teeth. The inward movement of the pin D is limited by the pin d thereof. The lip d of pin D is at one side of the center line of the pin, and the straight face of said pin is on the same line, so as to abut squarely against the sides of the teeth b. Thus the ratchet-sleeve is held firmly against rotation in one direction while th oblique surface of the lip will ride freely over the teeth when the handle is turned in the opposite direction. The holding action of the pin D is reversed by simply drawing it out-ward till the pin d emerges from the notch a, and then giving a half-turn to the pin or click, after which the handle will turn the tool in the opposite direction. The relative arrangement of the notch and the pin d prevents any accidental partial turning of the click D. l

Ihe device for holding the tool within the handle consist-s of a stem, F, which extends upward through the collar C and into the lower end of sleeve B. At its upper end the stem F is formed with a segmental head, f', which enters a slot cut in the lower part of the sleeve B, while at its lower end said stem carries a pin, f. The shank of the tool G is formed with a notch, g, and it will be seen that when the tool-shank is inserted in the handle and the stem F is turned so as to cause the curved portion of the segmental head to fully enter the slot in the sleeve B such head will also enter the notch of the shank, and thus secure the tool to the handle. On the other hand, when the stem is turned so as to carry the head f outward it will readily release the tool.

The construction or manner of making the handle is very simple, as the handle with its hollow enlargement and its socket or eXtension, the click or pawl, the ratchet-sleeve, and the holder F are all simple separate pieces which are easily cast and readily put together. The arm a2 is hollow, so that the pin D may be readily taken out or put in through it. In the case of the handle shown in Fig. 3 a hollow extension, a, is formed in alignment with the extension a5, and the pin D is taken out or put in through this hollow extension. In the handle shown in Figs. l and 2 a hole, al, is formed in the enlargement A at a point directly opposite the socket e, and through this hole the pin is removed and replaced in its socket.

When greater leverage is required than is afforded by the arms, a bar of increased length may be fixed in the end of the hollow arm or in the hollow extension.

Having thus described mynvention, Iclaim as new and desireto secure by Letters Patent- 1. The combination, with the hollow hub or enlargement A, having the straight plain cylindrical bore, of the cylindrical ratchet-sleeve B,provided with the longitudinal teeth and the integral cap b, and the collar C, as described.

2. The combination, with the hollow hub or enlargement A, having-the straight plain cylindrical bore, and the reversible spring-click D, ofthe cylindrical ratchet-sleeve B, provided with the integral cap b and teeth b, and the collar C, having the eccentric turning-catch F, adapted to engage a notch in the tool-shank, substantially as set forth. v

y CHRISTIAN HERMANN.

Witnesses:

FRANK I. KINNIcU'r'r, DARWIN ALMY.

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