US29692A - John m - Google Patents

Description

UNITED STATES PATENT OFFICE.

JOHN M. HATHAYVAY, OF NEV YORK, N. Y.

HANDLE-FASTENING FOR AUGERS.

Specification of Letters Patent No. 29,692, dated August 21, 1860.

To all whom 'it may concern:

Be it known that I, JOHN M. HATHAWAY, of the city, county, and State of New York, have invented certain new and useful Improvements in Handle Fastenings for Augers and Bits, of which the following specification embraces a full and fair description.

The nature of my invention consists substantially in the use of a slotted or notched key which is movable and slides in or out through the socket part of the handle of the auger or bit, transversely to its tang, and in proper notches cut therein, so as to firmly fasten it in its place for use or as readily be made to release it.

Figure l (see accompanying drawing) shows the application; said figure .being a plan View of the auger handle, &c., which is embraced at and near its center by a metallic ferrule or band, a portion of which is broken out 7 on the drawingto show the key A and a section through the tang of the auger X opposite the notches on either side of the same, that the key takes into, when entered, by means of the slot X thus embracing and fastening it. The key is shown in the proper posit-ion for the withdrawel or entrancel of the auger. In this device I am enabled to make the tang of the auger round, in lieu of square as usual, which is a source of both convenience and economy of manufacture, and being turned it is sure to be in line with the body of the auger and thus the latter must run true. circular enlargement at the point where the tang is to pass through it as the latter is inserted or withdrawn from its socket.

As will be observed by the drawing there is a smaller continuation of slot X in the key shown on the opposite side of the enlargement for the passage of the tang, its object being to embrace a stationary pin Z passing through the auger handle and riveted or screwed into the ferrule to prevent the entire withdrawal and accidental dropping of the key. The key when home The slot in the key has av projects beyond the auger handle sufficiently far to permit its being started out in case of sticking by pressure or a blow on its smaller It will be evident that this combination of key and tang can be arranged for the former to slide longitudinally with the auger handle, as will be understood by inspection of Fig. 2 without further special description.

Fig. 3 is a cross section through the middle of Fig. 2, Z,y representing the tang broken off and C the key embracing it. Fig. 4 is a similar cross section of Fig. l.

Fig. 5 shows an equivalent of Figs. l and 9. but of a slightly cheaper character', the key itself, as well as the tang, being round and clutching the latter on one side only, in a round notch (in lieu of square notches as in the other figures) into which it lits when forced home. On the other hand, there is a round notch in the key to permit the passage of the tang in or out of the auger handle when the key is withdrawn to the position shown. On the opposite side of the key is a fiat or recess to receive the safety pin e, which is the equivalent of /z in the other figures.

Fig. G represents in longitudinal section the socket end of a bit-brace with my device applied and the tang in place and key retracted. It will be observed that both key and tang are supplied with metal bearings by means of the ferrule.

Having now -fully described my device, what I claim is` The application of the slotted or notched key in combination with the correspondingly notched auger or bit tang, both tang and key being provided with metal bearings by means of the metal ferrule or its equivalent, the whole being constructed and operating substantially as described for the purpose stated.

JOHN M. HATHAVAY.

Witnesses:

W. Gr. NUTTING, R. CHARLTON MITCHELL.

Images