US81694A - Ch aeles si no l a ie - Google Patents

Description

c. SINCLAIR. Ratchet Drill.

7 o 81,694. Patented Sept. 1. 1868.

fzmwibgf N-PETERS, PHOTD-LITHOGRAEHER. WASHINGTON, D Q

CHARLESSINGLAIR, OF NEW YORK, N. Y.

Letters Patent No. 81,694, dated September 1, 1868;

IMPROVEMENT IN RATGHET-DRILL.

. an firigehule numb t: in ilgttt itettcrs name mm mating and mi tige same.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, CHARLES SINCLAIR, of the city, county, and State of New York, have invented a new and improved Ratchet-Drill; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accom-' panying drawings, forming a part of this specification. I

Figure lreprcscnts a plan or top view, partly in section, of my improvedratchet-drill, the plane of section being indicated by the line a: a, fig.

Figure 2 is a vertical longitudinal sectional view of the same, taken on the plane of the line y y, fig. 1.

Similar lcttcrsof reference indicate corresponding parts. p

I Thisinvcntion relates to a new ratchet-drill of that class which is turned or rotated in the same directioti, in.whatevcrdirection the handle may he turned or oscillated.

The invention consists in such a combination of thehandle with the wheels, pawls, and shell, that the desired result is obtained by simple and eflicient means.

A, in the drawing, represents a spindle or arbor, on the end of which the drill Bis secured. This spindle is fitted through a wheel, C, a disk or handle, I); and through the opposite ends of the arms of a bifurcated handle, E. The wheel C and disk Dare held between the arms a Z: of the'handle E, as shown in fig. 2.

The parts 0 D E are prevented from playing up and down on the spindle, by means of a shoulder, F, formed on the spindle above, and by a pin or shoulder, a, fitted through or on the spindle A, below the handle E, as shown.

The shoulder F is, or supports, a ratchet-wheel, into which a spring-pawl, G, pivoted to the arm a of the handle E, catches. v v

By holding the handle D, the drill will be retained in the proper position, and then, by turning-the handle E in the direction of arrow 1, in fig. 1, the pawl will carry the wheel F, and with it the spindle A and dr'ill'B, around in the same direction. i i l When, however, the handle E is turned in the opposite direction, which is indicated by'the' arrow 2, fig. 1, the pawl G will slip on the wheel F, \vhile'another pawl, H, which is secured to the handle E, fitting into the toothodedgc of thewhccl C, will carry the said wheel C around in the saniedirectibn of the arrow 2.

The wheel 0 is provided with internal gearing 01, into which meshes a pinion, e, secured to the handle D,

"as shown. The pinion meshes into a. toothed wheel, I, which is loosely fitted around the spindle A, and which has ratchet-teeth formed on-its inner edge, as shown in figrl.

'3' is a boltfittcd into a-sockct,f, that is formed in the spindle A, a spiral or other spring, g, being interposed between the end of the socket and the bolt, as shown. The pointed or wedge-shaped cnd,of the bolt is, by the spring'g, forced against the toothed inner edge of the wheel I.

When the spindle is turned in the direction of the arrow 1,, by the pawl G, the bolt J will slip on the wheel I, but when the disk C is turned in the direction of the arrow 2, it will turn the pinion a in the direction of the arrow 3, and the same will revolve'the wheel I in the direction of the arrow 4, the wheel I carrying, by moans of the spring-bolt J, the spindle A and drill 13 around with it. v Thus, when the whole apparatus is held steady, bymeans of the handle D, and when the handle E is oscillatcd around the spindle A, the spindle and drill will be revolved in the direction of the'arrows 1 and 4, fig. 1; that is, in whatever direction the handle E may be swung, the drill will be continuously revolved in the same direction. 1 I

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-' 1. The combination of thev spindle A, retaining-handle D, and operating-handle E with the pawl G and ratchet-wheel F, and with the ratchet-wheel or disk 0, having internal gear with the pinion e, toothed wheel I, and spring-bolt J, all made and operating substantially as herein shown and described, the toothed wheel I having ratchet-teeth formed on its inner edge, as set forth. g

, 2. The combinationof the drill-spindle A, pinion I, and spring-bolt J, when constructed and arranged as described, as an adjunct to the other mechanism for commurlicati ng rotary motion to the drill, substantially as described.

CHARLES SINCLAIR. Witnesses FRANK BLOOKLEY, ALEX. F. Rossa'rs.

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