US596375A - James mfrchie - Google Patents

Description

(No Model.)

J MUROHIE HAND DRILLING MACHINE.

No. 596,375. Patented Dec. 28, 1897.

UNITED STATES ATENT rrrcn.

JAMES MURCHIE, OF TRAVERSE CITY, MICHIGAN, ASSIGNOR TO WILLIAM H. ARMS AND WILSON COLE, OF SAME PLACE.

HAND DRILLING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 596,375, dated December 28, 1897. Application filed. June 1, 1897. Serial No. 639,023. (No model.)

T aZZ whom, it may concern:

Be it known that 1, JAMES MUROHIE, of Traverse City, in the county of Grand Traverse and State of Michigan, have invented certain new and useful Improvements in Hand Drilling-Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.

This invention relates to drilling-machines; and its object is to provide a simple and improved machine having a number of adjustments, whereby it may be arranged in a great diversity of operating positions with respect to its supporting means.

The invention consists in the novel features of construction and in the combination and arrangement of parts hereinafter fully described and claimed, and illustrated by the accompanying drawings, in which- Figure 1 is a perspective View of the machine in position for operation. Fig. 2 is a plan view. Fig. 3 is a sectional view of the drill-stem and feeding device. Fig. 4 is a detail view of the crank and ratchet. Fig. 5 is a similar view of a portion of the frame and the frame-adjusting device. Fig. 6 is a detail view illustrating the swivel mounting of clamp-screw F.

The frame proper consists of jaw A, formed with the integral right-angle arms B B, which support segment 0, formed with are slot D. Screw E is rigid with jaw A, while screw F is swiveled to arm 13, and these screws support and adjust the second or movable jaw G, the latter moving freely over screw E, being held thereto in proper position by nut E, while the opening through which screw F passes is screw-threaded and engaged by said screw. These jaws serve to clamp and secure the frame to the post or other object to be drilled. The angle at which the frame is set with respect to such object is regulated by bracket G, mounted on screws E and F and provided at its lower end with set-screw H. With the inner upper end of this bracket bearing against the object to be drilled or other sup port the angle'of the machine-frame is regulated by adjusting said screw either in or out.

to be secured in clamp J is an arm L, the same being turnable in the clamp, and thereby adjustable to any position required, and at the outer end of said arm is split clamp M. Adjustably secured in this last-mentioned clamp is another arm N, formed with internallythreaded socket portion 0. Adjustable longitudinally through said socket portion is externally-threaded feeding-sleeve P, in which bit-socket Q is rotatably secured, the latter having bit R detachably secured to its inner end and at its outer end carrying ratchet S. Mounted loosely on the stem is operatingcrank T, carrying pawl U, adapted to engage the ratchet for imparting continuous rotary movement to the drill or intermittent motion by oscillating the crank. Sleeve P is turned, in feeding the drill, by pins P, arranged adjacent the crank.

The several adjustments here shown and described permit of the drill being placed in an almost endless number of operating positions. The drill is thus adapted for a greatvariety of work and for use in' many places hitherto inaccessible to drilling-machines, as will be fully appreciated by those skilled in the use of such machines. In addition to the adjustments herein referred to a further and different position of the drill with respect to its support may be secured by omitting arm L'altogether and securing arm N directly in clamp J of arm I, thus alining arms I and N and affording them adjustment on the segment as a single arm.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is v 1. The combination of a drill-supporting clamp adapted to be secured to a pillar or other support, and a bracket carried by the clamp and extending at an angle thereto and adapted to engage the support, substantially as shown and described.

2. An improved support for a drilling-machine, comprising a rigidly-connected drillframe and jaw, a second jaw adjustable with relation to the first-mentioned jaw, a bracket depending beneath the jaws, and a set-screw carried by the bracket, the parts operating substantially as herein shown and described.

3. The combination of a drill-supporting clamp including horizontally-disposed jaws adapted to embrace a pillar or other support, a bracket depending from the clamp, and a screw adjustable in the bracket and adapted to bear against the support, and thus regulate the position of the bracket and the clamp with relation to the support, substantially as shown and described.

4. An improved drill-machine comprising a frame including arms B and B extending at an angle to each other, segment 0 supported by the arms, a drill and a drill-adjusting arm hinged concentrically with segment G and adapted to be held on the latter in proper adjustment, substantially as shown and described.

5. An improved hand drilling-machine, comprising a support, socket I hinged thereto and means for securing the socket in proper adjustment, arm L having clamp M at its outer end and at its inner end adjustable in socket 1, arm N adjustable in socket M at right angles to arm L, arm N being provided at one end with socket O, a drill-feeding mechanism movable through socket O, and a drill, substantially as shown and described.

6. In a drilling-machine, jaw A formed with integral right-angle arms B and B, segment 0 supported by the arms and formed with are slot D, a drill-adjusting arm hinged in the angle of the arms and extended over the are slot and adapted to be secured in desired adjustment to the segment, a drill, and a second jaw adjustable toward and away from jaw A, substantially as shown and described.

In testimony whereof I ailix my signature in presence of two witnesses.

JAMES MURCIIIE.

Witnesses:

ANDREW SMITH, D. A. Woonwonrn.

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