US46123A - Improvement in drilling-machines - Google Patents

Description

v UNITED STATES PATENT OFFICE.

WARREN LYON, OF N EW YORK, N. Y.

IMPROVEMENT IN DRlLLlNG-MACHINES.

Specification forming part of Letters Patent No. 46,123, dated January 31, 1865.

To all whom, t muy concern:

Be it known that I, WARREN LYON, of the city. county, and State of New York,have invented a new a-nd Improved Drilling-Machine; and I do hereby declare that the followin gis 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 accompanying drawings, forming part of this specitication, in which- Figure l, Sheet N o. 1, is a side elevation of my invention; Fig. 2, Sheet No. l, a detached plan or top view of the bed-plate of the same; Fig. 3, Sheet N o. 2, a front elevation of the invention Fig. 4, Sheet No. 2, a detached plan or top v iew ofthe bed-plate of the same; Fig. 5, Sheet No. 2, an end view of Fig. 4.

Similar letters of reference indicate like pirts.

This invention relates to an improvement on a drillingmachine for which Letters Patent were granted to me bearing date September 20, 1863.

The invention consists in an improved arrangement of the levers by which the necessary feed-pressure is transmitted to the drill from the weight, whereby the device is rendered more compact and simple than hitherto.

The invention also consists in a novel construction of the clamp by which the work to be drilled is held, whereby articles of dit'erent forms may be firmly held and expeditiously adjusted in and taken from the clamp.

The invention further consists in a novel construction of certain other parts of the machine, whereby advantages are obtained over the original invention, as hereinafter set forth.

A represents a standard attached to a suitable base, B. These parts may be of wood, and to the standard A a castiron bracket, C, is firmly bolted, said bracket being cast with bearings a af, in which a vertical arbor, D, is fitted and allowed to rotate freely, and also slide up and down. The arbor D is formed with a crank, E, for the purpose of turning it, and on the upper end of said arbor there is a weight, F, which acts upon the arbor as such, and also as a flywheel.

G is a swivel, tted to the upper end of the arbor D, and connected by a link,H, to a lever, I, the fulcrum-pin b of which is in a bracket, J, firmly bolted to the standard A. The inner end of the lever I is connected by a link, K,

to another lever, L, the fulcrum-pin of which passes through the upper end of a bar, M', the lower end ot' the latter being secured b v apivot-bolt, c, to a lug, d, attached to A. On the lever L there is placed a sliding weight, M, which may be secured at any desired point by a set-screw, e. By this arrangement it will be seen that the downward pressure of the weight F on the arbor D may be graduated as desired by adjusting the weight M on the lever Lnearer to or farther from the latter. All the advantages of the original machine are retained bya much simpler arrangement. The lever L has a rod, N, attached to it by a pivot, f, and the lower end of this rod is bent in the form of a hook, g, to catch under a bar, h, attached to the standard so as to hold up the arbor D when it is desired to elevate the drill free from the bed-plate. The drill (designated vby O) is iitted in the lower end of the arbor D. The rod N has a curved arm, i, for the operator to grasp in actuating the levers to elevate the drill.

By having the bearings a a of the arbor D on a cast-iron bracket, O, as shown, the drill may be readily adjusted or put up in proper position for work. v

In the original device the bearings were on separate arms, and considerable care and attention were necessary in order to get the bearings properly in line, and in case a careless workman superiutended or performed the work the device would operate impeifectly.

P is a bed-plate attached to or fitted on an arm, Q, which is provided at its inner end with an eye or tube, j, the latter being fitted on a vertical fixed shaft, It, the ends of which have lugs 7c attached to them, said lugs being bolted to the standard A. The arm Q may be secured higher or lower on the shaft R, as required, by a set-screw, l. The bedplate has two parallel cleats, m m, at its under side, the inner. surfaces of which are beveled or inclined to form a dovetail to slide upon the outer part of the arm Q, which is forked, and has inclined sides to conform to the beveled surfaces of the cleats m m. By this means the bed-plate P may be readily adjusted upon and removed from the arm Q. On the upper surface of the bed-plate P there is a vertical projection, u, having a V-shaped' notch, o, at its face side and there are also two parallel cleats, p p, on the upper surface ofthe bed-plate, be-

tween which aslide, R', is fittted and works, said slide also having a vshaped notch, q, in its face side. (See Fig. 2.) This slide 1t' is operated by a screw, S, and made to clamp square bars dx, to he drilled, a hole being made in P for said bar to pass through. The V-shaped notches o q insure the proper entering oi' the bars cx. Flat bars may also be secured between the slide R' and the projection u, and the bed-plate P may be properly ad- `iusted in relation with the drill by turning the arm Q, either to the right or to the left on its shaft It, or raising or lowering it, as may be required. In drilling plates an ordinary tlat bed-plate, A', Figs. 4 and 5, may be used.

By means of this improved construct-ion and arrangement I am enabled so far to contract thc dimensions ot a machine of the requisite power that it may be placed in a room of moderate height, and also to red nce the length of the projecting part so as to render them less liable to injury in transportation. Greater steadiness of motion and general compactness is likewise secured, which recommends them on the ground of economy' of room and con venience of manipulation.

Having thus described my invention, Iclaim as new and desire to secure by Letters Patentl. The arrangement, as herein shown and described, of the levers I L, drill-arbor D, with Weight F attached, the counterpoise M on lever L, and the rod N, for the purpose specified.

2. The projection c and cleats p p on the face or upper side of the bed-plate P, in combination with the slide R', screw S, and the adjustable arm Q, to which the bed-plate is attached, all arranged substantially as and for the purpose set forth.

3. The bracket C, With bearings t a attached when used in combination with the drillarbor D and its concomitant parts, as herein shown and described.

WARREN LYON.

Witnesses:

J. P. HALL, WM. F. MCNAMARA.

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