US395943A - Radial drill - Google Patents

Description

(No Mader.) 3 sheets-sheet 1.

J. J. BATMAN'.

' RAJHAL DRILL.v

" rney N. FUER; PhuwLilhagmpher. Wmhingtnn. n.0.

3 sheets-#sheen 2.

(No Model.)v

J. J. BATMAN.

, RADIAL DRILL. No. 395,948.

Patented Jan. 8, 1889.

W El A INVENTOR 'WITNESSES.

N. mms nlmaumqgnpim. wawingxm nic.

(No Model'.) sheets-.sheen 3.

J. J. BATMAN.

RADIAL DRILL.

10.395,943. Patented Jan. a, 1889;

A WITNESSES d' @Zia/ rtree.

JOHN J. BATMAN, OF SUNBURY, PENNSYLVANIA.

RADIAL D Rl LL.

SPECIFICATION forming part of Letters Patent No. 395,943, dated January 8, 1889.

Application filed October 4, 1888. Serial No. 287,147. (No model.)

To @ZZ whom t may concern:

Be it known that I, JOHN J. BATMAN, a citi- L zen of the United States of America, residing t at Sunbury, in the county of Northumberland and State of Pennsylvania, have invented certain new and useful Improvements in Radial Drills; 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 appertains to make and use the same, reference being had to the accompanying drawings, and to letters or iigures of reference marked thereon, which form a part of this specification.

My invention relates to certain new and useful improvements in radial drills, the object of the same being to provide means whereby the wear which is caused by the rotary motion of the spindle may be taken up and the table adjusted so that it can be moved and held vertically or placed atan angle with the drill; and my invention consists in the construction and combination of the parts, as.

will be hereinafter fully set forth, and specifically pointed out in the claims.

In the accompanying' drawings, Figure l is a perspective view of a radial drill constructed in accordance with my invention. Fig. 2 is a side view of the drill-stock detached. Fig. 3 is a vertical section through the drill-stock. Fig. -l is a detail view. Fig. 5 is aI side view of the tilting' table and its support, and Fig. ti is a sectional view of the saine.

A refers to a platform, to which the fixed post or column l is rigidly secured. Above the column and to the saine is suitably secured, so as to turn thereon, a column, B', which carries a horizontal arm or overhanging beam, (l. This beam or arm C is provided with a horizontal slot, through which passes a shaft carrying a pinion and hand wheel for engaging with a rack-bar, so as to move the drill-frame D. Through the columns l and l passes a vertical shaft, which carries at its upper end a beveled wheel, h, the lower.I end ot' this shaft being also provided with a beveled wheel, which engages with a corresponding' wheel on the countershaft l, supported by bearin gs attached to the column I5 and to the platform. This countershaft is provided with a conc-pulley, la, over which the driving-belt passes, said belt passing through a belt-guide, 2, so as to be guided over the conical pulley 3,which is at an angle with the pulley hereinbefore mentioned. Upon the shaft of the last-mentioned pulley are secured loose and fast pulleys 4t and 5.

The lower portion of the column B maybe split and provided with outwardly-projecting ears b', through which a screw-threaded rod passes, so that it may be contracted to jam the movable column upon the stationary one beneath.

The drill-frame D is secured by any suitable means to the arm C, so as to be moved horizontally thereon, either to or from the supportingcolumn, by turning the handwheel C, and a-rotary motion is communicated to the drill by means of the shaft d, whiclrcarries pinions d and d2, the pinion d being provided with a key, which en gages with a longitudinal groove in the shaft d. This shaft d is mounted in suitable bearings, as shown, and the pinion d2 engages with a pinion, D, which embraces the spindle, said spindle being arranged to move longitudinally within the hub of the pinions, but to rotate with it.

The drill-frame D is provided with laterallyprojecting' arms E and E', connected to each other by guide-rods e e, which are clamped securely to the lower arms, E', and are also made fast to the upper arms, E. At the center of these arms of the drill-frame openings are provided, in the lower one of which the hub of the beveled gear-wheel I is journaled, while' in the upper opening aninternal screwthreaded bushing or feed-nut, F, is seated, with which the threads of the feed-screw G engage. The upper portion of this feed-nut is key-ended, and to the same is secured the pinion g, with which engages a pinion, g, attached to the vertical shaft G', which is supported in bearings formed on the drill-frame, the lower end of this shaft being below the arm C and there provided with a handwheel, G2.

Upon the rods e c is secured a sliding cross` head, il, which is iliade up of two corresponding side pieces securely bolted to each other, so as to move vertically upon the guide-rods e e. Centrally this cross-head H is provided with threaded socket h, with which the threads on the lower end, 7:', of the feed-screw G engage.

IOO

The threads on the lower end ot the feedscrew are much liner than the tln'eads on the.

body portion ot? said screw, and also have a diilerent pitch. lleneath the screw-threaded Vrecess 71, and ctmnnunicating with it, is a recess, i', provided with an inwardly-proieeting annular shoulder to engage an annular groove 'termed in the upper end ot' the spindle l. This spindle, as bet'ore stated, passes freely through the hub ot' pinion l`)', and is provided with a hmgitlulinal groove to receive a l'cather or spline termed in the bore ot' the hub, whereby the spindle has longitudinal movement in the hub, but is rotated by it. 'lhe lower cross-piece, D2, oli' the drill-'frame is provided centrally with a vertical conical opening or socket, J, wit-hin which is seated a long split sleeve, J', cone-shaped exteriorly, and threaded at its upper end to receive an :o zuljusting-nut, j.

lower bearing for the drill stock or spindle l', and may be adjusted vertically within its socket .l by means otf the nut]l to take up wear.

The drill or boring-tool is clamped by a suitable chuck to the lower end ot' the spindle in the usual manner.

The platform A is provided at one end with a stationary eoluntn, K, which carries a ver- ;o tically-niovable table, said table bein rigidly attached to a movable eolumn, ,l', which is provided with eircuniterential htn'izontal grooves 7,1', and with these a pinion supported. by outwardly-pro jceting lugs :l'ormed onV the column l( engages, by means oi' which. pinion the table can be adjusted vertically and turned horizontally, as desired. The means t'oradjnstingverticz'illy and securingtl'le same in position are the saine as that employed to on the movable table, which will be hereina-t'ter described.

L refers to a colunni, which can be moved horizmitally upon the platt'orm A to and from. the stationary column 13, the same being i5 adapted to be clamped in position upon the platform when adjusted. This column L is provided with aslot, 7, and with (mtwardlyln'ojecting ears 7, which form bearings :t'or a reetangulzuf shaft, nl. (.)ne end oli' this shaft 5o is key-ended and provided with a suitable collar, and upon the rectangular portion between the ears 7' a pinion, '11, is placed. ',lhc opposite outer end ot' the shalt supporting this pinion is screw-threaded and provided 55 with a nut.

The stein or column which supports the table is provided with a series ol:l horizontal Vthinges and recesses, with which the pinion a engages, and the upper portionot' this 6o column or shat't M is slotted, as shown at o, and provided with a cut-away central portion, which l'nfovides side ears, between which a depeiujling lug, O', formed on the under side ot' the table lies. One ot' the outer ends of the bolt p, which passes through the ears and lug 0', is key-ended and provided with a col- This sleeve .l l'orms the' lar, while the opposite end is screw-thre'aded and provided with a nut.

rlhe table R is provided with a right-angular portion, R', formed integral therewith, and this table is provided with slots t'or attaching clamps or holding the work Vin position thereon.

lly the construction hereinbei'ore described it will be observed that by loosening the nut on the pinum-carrying shat't or bolt fm., ears 7 will spring' apart, and then by using a wrench 'upon the key-ended portion ot' said bolt or shaft the pinion n can be turned to raise the column or stock M, and by again tightening the nut the column M, to which the table R is attached, will be held against the vertical movement, and by simply loosening the nut on the shat't p, l `igs. 5 and (i, the table can be adjusted to a desirml angle.

lll-practice there is considerable wear upon the spindle l, which carries the drill, and to take up this wear and avoid lost motion the conical sleeve .l' can be adjusted to take up said wear upon the lower bearing ol the spindie, and the wear on the head oli the spindle is taken up by the line screw-threads t'ormed on the lower end, 7i', ol' the feed-screw; and it will be observtal that. the fecal-screw is always held in contact with the upper end ol" the spindle, and by loosening t'our small eapserews in cross-head l'l the Vfeed-screw G canV be screwed down to take up any vertical wear that may have occurred.

ly supporting the spindle as herein shown the weight olf the spindle and parts attached thereto will not come upon the drill, which permits the smallest class olf drills to be eniployed without liability ot the same being' i broken.

ll'aving thus described my inventiml, what I claim as new, and desire to secure by liettel's Patent, is-

l. ln a radial drill, the combini'ttio'n ot' a table having circumterential grooved. column or stock. M, the upper end ot.' which is bifurcated and provided with a elainpiiig-bolt,y), for securing the table ot' said column or stock, and a slotted support, l), ii'or said. column. or stock, carrying a sha t't, fm, with pinion n, and a nut on said shaft 'l'oir jamming the support upon the stock, substmltf/ially as shown, and t'or the purpose set `forth.

In a drill, the combination ot' the drilltraine l), constructed substantially as shown, and provided with. a movable guide, ll, having a central recess, within which the upper end ot the spindle lies, and a screw-tlneadedv recess, 71, above the recess A'or the spindle, with which. the lower end, 7.1', oil the lleedfscrew engages, so as to bear upon, the upper end ot the spindle, substantially as shown, and i'or the purpose set forth.

l. The combination, in a drill, of the drill- :li'ra'me provided. with upper and lower bearings for the spindle, the lower opening, J, ot? said drillH-t'rame being conical and ln'ovidcd IOO TIO

with a conical split sleeve, J', the upper portion of which is screw-threaded, and a nut, j, for tightening' an d holding said sleeve in place, substantially as shown, and for the purpose set forth.

el. The combination, in a drill, of a drillstock constructed substantially as shown and provided with guide-rods e e, the transverse bar made of two corresponding parts bolted together, so as to embrace said guide-arms and the upper portion of the spindle, and a feed-screw having the lower end provided with threads, which engage with the screw-threads in the arms H H, said threads being of different pitch from the feed-threads, substantially as shown, and for the purpose set forth.

The combination, in a drill, of a drillstock constructed substantially as shown and provided with laterally-projecting arms E and E', guide-rods e e, supported thereby, removable cross-bar mounted on the guide-rods and carrying centrally the upper end of the spindle and lower end of the feed-screw, a

lower bearing for the spindle carrying a conical sleeve, through which the spindle passes, a driving-wheel, D, for rotating the spindle, and a shaft, G', carrying a pinion, g', which engages with a pinion, g, for turning' the feedscrew, the parts being organized substantially as shown, and for the purpose set forth.

G. The combination, in a drill, of a table support or column provided with circumferential grooves, a support for said column having a vertical slot, adj aeent to which are provided outwardly-proj eeting ears formingbearings for a bolt or shaft, upon which is placed a pinion, which engages with a support, said shaft having a nut for clamping the parts together, so as to be in frictional contact, substantially as and for the purpose set forth.

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

JOHN J. BATMAN.

lVitnesscs:

P. A. MAHON, A. J. GUFFY.

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