US13925A - Auger-handle - Google Patents

Description

TINTTED STATES PATENT OFFICE.

G. H. TALBOT, OF BOSTON, MASSACHUSETTS.

.AUGER-I-IANIDLE.

Specification of Letters Patent No. 13,925, dated December 11, 1855.

To all whom it may concern:

Be it known that I, GUILLAUME HENRI TALBOT, of Boston, in the county of Suffolk and State of Massachusetts, have invented a new and useful Improvement in Handles.

for Augers, Gimlets, and other Tools and Instruments to Vhich Such Handles are Applicable; and I d0 hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanyingdrawings, forming partl of this specification, in which- Figure l, is an outside view of an auger having applied to it one of my improved handles. Fig. 2, is a central section of the handle taken lengthwise. Fig. 3, is a transverse section of the same taken in the line y, of Fig. 2. Fig. 4, is a view of the handle, with one of the two parts of which its shell or external portion is formed, removed to show the interior. Fig. 5, is a perspective view of the socket which receives the auger, gimlet or other tool or instrument.

Similar letters of reference indicate corresponding parts in the several figures.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation. A, B, is the shell or external part of the handle which is of the same form externally as the common auger or gimlet handle but instead of being solid is divided centrally in a plane perpendicular to the axis of the auger, into two parts A and B, the said parts being screwed together by screws c, c. This shell A, B, should be preferably made of cast metal, in which case the necessary cavity in the interior to contain the ratchets,

pawls, etc., hereinafter described, may be formed in the casting. C, is the socket to receive the auger or other tool or instrument, which Iits to turn freely in two bearings formed, one in each part of the shell A, B, of the handle, and has tightly secured to it two ratchet wheels a., Z), whose teeth incline in opposite directions, the said ratchet wheels being allowed plenty of room to turn freely in the cavity of the handle. Opposite the ratchet wheel a, there are two sliding spring pawls a', a, arranged lengthwise of the handle, one on each side and opposite the ratchet wheel b, two similar pawls b', b.

D, is a small shaft which is fitted to bearings formed in the ends of the two parts A and B, of the shell of the handle, half in each, thus bringing the axis of the shaft in the plane which passes between the pawls a, a', and those b, b; This shaft has a small lever f, outside the handle to turn it as far as necessary and is furnished with two toes d, d, one of which plays in recesses e, e, made in one pawl a', and its corresponding pawl b, as shown in Fig. 3, and the other in similar recesses in the other two pawls. V The side of each recess c, which is farthestfrom the center of the handle is beveled, as shown in Fig. 2, and the toes cl, d, of the shaft D, which are arranged pari allel with each other, occupy such a posiof thetwo pawls a', a', or those b', 6, they act on the beveled sides of the recesses and force those. two pawls out of gear with their respective ratchet wheels, but leaving the recesses of the other two pawls, allow the latter to engage with'their respective ratchet wheels. This is illustrated in Fig. 2, where the toes are represented as having left the recesses of the pawls a, a', and entered those of the pawls b, allowing the former to fall into gear and throwing out the latter. The same condition is illustrated in Fig. 4. The consequence of this, is, that by turning the handle back and forth the auger will be turned to the right or in the direction for boring, a being the right hand ratchet wheel, but if the position of the toes were reversed, by means of the lever y the direction of the rotation of the auger would be reversed. The lever f of the shaft D, which to express its duty, may be termed the reversing shaft, is made slightly elastic, so that when left free it may enter one of two notches made in the end of the handle to receive it and by that means is confined to keep the toes in position to ungear either of the two ratchet wheels.

The two pawls to each ratchet wheel are not absolutely necessary, as one for each mightserve the purpose very well, but by employing two better security is afforded.

Now it will be observed that while, by my arrangement as described of the actuating pawls and ratchet wheels with the reversing shaft and so forth within the body of the handle, the ordinary form of gimlet handle, crossing or extending over both sides of the axis of the auger or bit, is preserved, to afford a convenient clutch to the hand for the steady operation of the bit in a straight line Without tendency by the pressure of the hand to incline the bit to either side as is Well known in the action of such handles over or as compared to one sided handle arrangements especially in the performance of small Work, the same facility of giving the required turning action to the bit in either direction by vibrating instead of turning the handle completely around is obtained as is done by the one sided handle drill stock in common use and Which also has -been provided With a double reversible paWl and ratchet gear for operation of the drill in either direction by the vibration of the handle, but in my arrangement I do away With the one sided handle action or pressure and preserve the common property, shape, appearance and so forth of the more steady and convenient double or ordinary gimlet handle for operation either in the ordinary Way, of turning the handle around With the gimlet or bit, (or Where there is not convenient space in the piece of Work for so turning the handle completely around) for its operation by a vibratory action by pressure on both sides of Within and covered or protected all around by the body of the handle, While, by the handle being formed in two parts longitudinally, every facility is afforded, by taking off the upper part, for repair should derangement occur.

I do not claim as new the manner herein described of giving a revolving action in either direction to the auger bit or boring tool by reversible paWls and ratchets operating in connection With a vibrating handle, apart from the relative arrangement and form of handle specified, as such is common to drill stocks: but

I do claim as a new and useful improvement in gimlet or auger handle arrangements, and desire to secure by Letters Patent,

The arrangement, substantially as herein specified, Within the body of the said handle, which crosses the bit, of the ratchets (a and paWls (a/ b) with their re versing gear, for operation of the bit or bit socket in either direction, either by a revolving or vibratory action of the girnlet handle on pressure of the hand applied on both sides of the axial line of the bit and under the usual clutch of the hand on the handle over the center line of the bit, and whereby the actuating paWls, ratchets and accompanying devices form no obstruction and are protected from injury or derangement essentially as set forth.

G. H. TALBOT. Witnesses:

O. D. MUNN, J. G. MASON.

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