US1155891A - Drill-press. - Google Patents

Description

l. F. CONNOR.

I DRILL PRESS.

APPLlATloN FILED nEc.a|. 1914.

'Patented oct. 5, 1915.

2 SHEETS-SHEETI WWA/6335s v AA J Ma/6L P. F. CONNOR.

DRILL PRESS.

APPLICATION FILED DEC.'3I. 1914.

1,155,891. v Patented oet. 5, 1915.

2 SHEETS-SHEET 2.

u ,1,4 J MM Pcrlck F Connor By M . y AToH/I/EVS f TED sTAEs PATENT roEEioE.

y PATRICK FRANCIS CONNOR, OF NEW YORK, N. Y., ASSIGNOR OF ONE-FOURTH TO ORIN W. WARD AND lONZE-FLIKSrHTH TO .AG-NES SCHULL-GRAMM, BOTH 0F NEW YORK, N. Y., AND ONE-EIGHTH TO EDGAR C. ABBOTT, 0F BOSTON, MASSACHUSETTS.

Specicatioxi of Letters Patent.

DRILL-PRESS.

Patented Oct. 5, 1915.

Application led December 31, 1914. Serial No. 879,897.

To all/whom t mag/concern: Be it known that I, PATRICK FRANCIS CONNOR, a citizen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State o f New York, have invented a new and Improved Drill-Press, of which the following is a full, clear, and exact description. t

This invention relates to metal working tools and has particular reference to boring and drilling devices. c

Among the objects of the inventionis to 'provide a drill press adapted forpractically universal employment or one which the mechanic may carry with him readily and apply to practically every type of work. In other words, the device constituting the subject matter of this invention comprises a bracket which may be held in any desired position 4upon a fixed support l or may be clamped to the bar, rod, plate or other )ob to be bored. v

The foregoing and other ob]ects of the invention will hereinafter be more fully described and claimed and illustrated in the drawings forming a part of this speciica` tion in which like characters of reference indicate corresponding parts in all the views, and in which- Figure 1 is a side elevation of a preferred embodiment of the invention, the same being shown supported upon a fixed support as above a bench; Figs. 2 and 3 are horizontal sections on the corresponding lines of Fig. 1; Fig. 4 is a vertical .transverse sectional detail on the line 4 4 of Fig. 1; Fig.

5'is a bottom plan view of the foot piece and bed plate of Fig. 1; Fig. 6 is a side elevation showing the drill press supported upon the end of a rod or ypost to be drilled; Fig. 7 is a horizontal section on the line 7 7 of Fig. 6; Fig. 8 is another modification showing the use of the machine clamped to a pipe and so held for operation thereon; Figs. 9

and 10 are side and plan views indicating .the device acting upon a horizontal angle bar, the main bracket being supported in a horizontal position on a bench;-Figs; 11 and 12 are views showing the application of the device to a flat bar, the bar constituting the means for supporting the drill press; and Fig. 13 is a view corresponding to Fig. 2 but showing a modified form of stem adapted to support the shank when turned at right angles in either direction from the position shown in Fig. 1.

The several parts of this device may be made of any suitable materials, and the relative sizes and proportions, as well as the general design of the mechanism, may be varied within the scope of the claim without departing from the spiritl of the inven-y tion hereinafter more fully described and specifically claimed.

Referring more particularly to the drawings, I show a bracket 15 comprising two parallel bars 15El and 15b to and between which are secured a head piece 16 and a foot p piece 17. The head is adjustable lengthwise of the bracket by means of bolts 18 acting through any suitable number of holes 19 at the upper ends of the bracket bars. The head at its free end is provided with a hub 2O through which a feed screw 21 is operated toward' and from the foot piece by a suitable means such as a hand wheel 22. The foot piece is provided preferably with a pair of parallel prongs or toes 23 which extend upon opposite sides ofthe vertical plane of the feed screw and main portion of the bracket.

vAt 24 I show` the main part or shank of the drill mechanism per se, this part of the mechanism resembling in general a well known type of breast drill, and including a master gear 25 journaled upon a stud 26 extending laterally from the shank. said master'gear meshing with an idle pinion 27 and l another pinion 28 which drives the chuck 29 and drill bit-30. In all adaptations of the device, however, the operator is relieved from holding the drill mechanism, the same being supported in the bracket, and the shank is directly guided or supported in the plane of the bracket aforesaid by means of a rigid stem 31 shown in Fig. 1 as tapped i directly through a hole 32 in the shank just above the stud 26, and at its other end the stem is clamped-to a slide or block 33 by means of a thumb n'ut 34 and a shoulder 35.

The slide 33 is adapted to move freely longitudinally of and between the bars a and 15b, but is held from lateral displacement or tilting by means offprojections or flanges 33 at the corners thereof as shown best in Fig. 2. y y A In Figs. 1 and 5 1 show a bed plate 36 having a flat face and of any suitable outline, the. same being adapt/ed to be slipped into place upon thel prongs 23of the foot, keepers 37 being connected to the bottom of the bed plate carrying set lscrews. 38 for clamping the bed plate in proper position on said foot. 'llhe bed plate has a central opening 39 toward and through which the tool 30 is directed and through which a peculiar form of clamping block 40 may be passed. rllhis block includes a nger 41 having one end extending forwardly after passing downwardly through the opening 39 far lio enough to allow the rear end to pass through and beneath the opening, whereby when the block is then moved rearwardly the shorter end will interlock beneath the plate as indicated in Figs. 3 and 5. A pin or screw 42 may then be used to hold the block in place. Said block on its uppermost portion has a lip 43 overlapping the bar B to be drilled. The bracket and drill proper may be connected to some rigid support vsuch as indicated at 44 by .means of connectors 45 asu shown in Fig. l, or it-may be held in a horizontal position by the use of the same connectors as indicated in Fig.- 9, however, of connecting the bracket to some ixed stationary support, ll provide means lwhereby the bracket may be clamped tern-4 porarily, but rigidly, for practicalpurpos'es to a post, rod, bar or the. like :to be treated. 1n Figs. 6 and 7 ll show, for eXample,-a vertical metal post P, the end of which is to be v bracket 15 and feed mechanism being the 'same as before described, the machinewill now be in position to drill the hole desired.

In'Fig. 8 the same bracket and-.foot members are shown clamped by means of a clamping block 51 to the pipe P through .which a 4transverse hole is to be drilled.

The block 51 has. a plurality. of holes through which prongs 23 project andv it is lnstead,

vnieaeei locked tothe pipe by means of a serrated-y jaw 52 acted upon by set Screws 53 passing through a yoke 54 interlocking with the sides of the block 51. The tool 30 (not shown in this figure) will be understood as operating downwardly at one side of the yoke 54 and block 52. y

'At A, Figs. 9 and 10, 1 show an angle bar,

l one iange of which is to be drilled. At 55 is shown a clamp slipped upon the prongs 23 as already described. r1`his clamp includes a pair of dogs 56 pivoted at 57 to the upper portion of the block 55 and adapted to be turned down upon the opposite side of the angle bar from the block 55, said dogs carrying set screws 58 which act through the dogs against the angle bar to be drilled. Said .dogs are held temporarily in position by a pair of keepers 59 pivoted at 60 to the A upper part of the block.

lin Figs. 11 'and 12 l show a bar B of larger dimensions than the rst mentioned bar and adapted by means of a clamp to support the machine while in use. This clamp comprises a plate 61 connected by a bolt 62 vto the foot piece 17 through an anchor block 63 close to the bar. Illhe gripping eifectis completed by means of a set screw 64 acting close to the end of the plate 61 which spans or straddles the bracket 15 whereby the clamp plate 61 is held steady. lThe free end of the plate 61 is provided with iingers 61 which span the point where operates in a plane transverse to the plane vof the bracket and stem 31.

i For certain purposes it is necessary or desirable for the drill proper to be turned to the right or left from said position through an angle of degrees whereby the wheel 25 will oper ate in a plane parallel to the bracket and stem. For this purpose, as shown in Fig. 13, provide a stem 31 having a socket 31a lat its free end which embraces the tappedv lportion of the shank 24 and it is connected rigidly to the shank by means of a screw 31" which passes into the hole 32 of the shank. The other end of the stem is connected, as above described, to the slide 33 for operation along the bracket 15.

l claim:

In a drill ypress of the character set forth, the combination of a bracket, head and foot l members connected to the opposite ends of the bracket, work holding means connected to the foot, feed means acting through the head toward the foot, drill mechanism between the head and the foot and including a shank against which the feed means operates, said shank having a tapped hole perpendcular to its axis, a stem having at one In testimony whereof I have signed my end a socket embracing the tapped portion nameto this specification in the presence of 10 of the shank, 'adscil'levT paslingbthrolllighdth two subscribing Witnesses.

socket into sai o e, W ere y t e ri T mechanism may be operated on either side PATRICK FRANCIS (DNB OR' of the vertical plane of the stem, and va slide Witnesses:

movable along the bracket and connected to WILLIAM BAUM,

the end of the stem opposite the shank. JAMES DUGAN.

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