US2480554A - Power drilling mechanism - Google Patents

Description

Aug. 30, 1949. K. w; OUSE 2,480,554

POWER DRILLING MECHANISM V 7 Filed March 24, 1945 4 Sheets-Sheet l 3%, W49. K. w. causa POWER DRILLING MECHANISM 4 Sheets-Sheet 2 Filed March 24, 1,945

36, 1949 Y K. W. GOUSE flwggm POWER DRILLING MECHANISM Filed March 24, 1945 4 Sheets-Shieet 3 3M4 WCZwe Aug. 3G, N49, K. w. cousE fi fi POWER DRiLLING MECHANISM Filed March 24, 1945 j 4 Sheets-Sheet 4 Patented Aug. 30, 1949 UNITED STATES OFFICE 3 Claims.

This invention relates to the construction of a drilling mechanism especially adapted for use in connection with traveling work or machine shops of the general type illustrated in my Patent 2,358,446, issued September 19, 1944.

It is the principal object of the invention to provide a drilling mechanism to which I have applied the general term of radial drill that can be operated over a surfe ceof considerable area, whether the surface be in a horizontal or vertical plane;

While this mechanism is particularly adapted for use in connection with traveling machine shops, it is also adapted for use in various other places as will be seen from the following specification taken in connection with the annexed drawings wherein:

Figure 1 is an end elevation of a traveling workshop with the radial drill in one position of operation.

Figure 2 is a view similar to Figure 1 but with the drilling mechanism in another position of operation.

Figure 3 is a view of the drilling apparatus per se shown in Figure 1, but on a larger scale.

Figure 4 is a top plan View of Figure 3.

Figure 5 is a view on the line 5-5 of Figure 3.

Figure 6 is a view on the line 6-6 of Figure 3.

Figure '7 is a view of the drilling apparatus shown in Figure 1, but removed from the traveling workshop and installed for operation under other conditions.

Figure 8 is a view similar to Figure 1 but showing a slightly modified form of part of the drill holder fixture.

Figure 9 is a view on the line 9--9 of Figure 8.

Figure 10 is a view similar to Figure 9 but with the drill holder fixture turned to an angle of ninety degrees.

Figures 11 and 12 are parts of the drill holder fixture utilized in the construction shown in Figures 9 and 10.

Figure 13 is a View similar to Figure 7 but with the drill holder bracket per se mounted in closeup relation to the supporting standard.

Figure 14 is an exploded view of the parts shown at the top of Figure 13.

Figure 15 is a view similar to Figure 14 but of modified parts. Figure 16 is a modification of shown in Figure 15. Referring now to the drawings wherein like numbers refer to corresponding parts in the various views, I is the rear end of a traveling workshop having a chassis 2, of which the rear axle 3 and wheels 11 are illustrated. Carried between the platform of the chassis Z and the top 5 of the shop is a metallic standard 6 that may be in the form of a relatively heavy-walled pipe which is fitted at top and bottom with similar one of the parts 3 Figures 1 and 3.

engagement members 1 that have screw studs 8 which are threaded into bushings 9 fixed to the opposite ends of the standard 6. These adjustable grippping fittings are very much on the order of jackscrews so that the standard 6 can be rigidly anchored between its support members.

The members I are provided with transverse holes I 0 to receive a rod for screwing in and out the threaded studs 8 to loosen or fasten the standard 6 in position on the shop or in position between support members i i and i2 as illustrated in Figure '7. The members 1 have serrated faces 13 for gripping the surfaces with which they are brought into engagement by adjustment, under certain conditions of use as will be directly ex- 'plained.

When the radial drill is used on a traveling shop as illustrated in Figure 1, the standard 6 may be held at its upper end to a bracket 15, fixed to the top 5, by bolts or studs I6 passing through holes I! in clamps 18 or I9 as illustrated in Figures 14 and 15. At the bottom the standard 6 is held in place by the shoulder of member 1 engaging the chassis frame member 14 as shown in When the drilling structure is used apart from the traveling shop as illustrated in Figure 7 it is supported between members such as H and 12, by a pair of clamps such as [8 which may be provided with spikes or anchor pins 20 carried by the ears 2| having holes to receive a threaded stud 2'2 to take a nut 23. q On the other hand, if a pair of clamps such as 19 are used as illustrated in Figure 15, spikes or braces like 24 may be used. These spikes have a threaded end 25 adapted to fit a threaded socket 26 in the clamp 19; or the clamp 19 may use a V-shaped spike or brace 21 as shown in Figure 16. Where the anchor pins or spikes 20, 24 or 21 are used, the support member 12 is necessarily of wood or a material into which the braces or spikes may be forced.

Whetherthe standard 6 be mounted on a truck or in some other manner, as for example that illustrated in Figure 7, it is adapted to carry a split sleeve 28 which is fastened in any adjusted position longitudinally of the standard 6 by clamping bolts 29. Mounted on the standard 6, is a bracket 33 having arms 38 and 32 which have similar circular ends 33 to fit around the pipe or standard 6. The ends 33 have projections 34 with holes therein to receive clamping studs 35 so as to lockthe arms 3! and 32 securely to the standard 6.

Between the sleeve 28 and the end 33 of the upper arm 3 I, is an anti-friction bearing 36 which may be of the ball or roller bearing type so that, after the holding bolts 35 are loosened, the bracket 33' may be swung through an arc of degrees more or less, depending on the requirements, where it may be fastened in any desired position within its path of movement. Since the bracket 30 and the other parts carried thereby, to be later described, are of considerable weight, the anti-friction bearing 36 is of material importance in the swinging of the bracket 30 to any desired arcuate position.

Carried by the bracket 30, is a drill holder fixture 31 which may have a circularly formed portion 38 terminating in ends 39 adapted to be engaged by the ends of the arms 3| and 32, the ends of said arms having split portions 40 to receive a clamping stud All whereby the fixture 3i way be held in any arcuately adjusted position. The fixture 31' carries a drill holder 42 which is supported :by a member 43 that has transverse adjustment on the member 31 either by a dove-tail fit 44 as illustrated in Figure .4, or by a rack-and-pinion arrangement. The drill D maybe moved into the work by means of the handwheel 45 acting through a gear mechanism 46 to move the member 63 so the drill may be caused to penetrate the work.

When it is desired to shift the drill holder 42 and the drill D, a considerable distance, the handwheel 45 and its rod are disconnected by a lever ll from the gear mechanism 46 so that the sprocket type wheel 48 may be turned to get direct action on the member 43. A hydraulic shock absorber 4.9 is connected through levers B and 51 with the member 43 so when the lever 47 released the gear mechanism 46, the member 43 carrying the drill holder 42, which together have considerable weight, will not go down with a thud. The drill holder 42 is of the oompressed-air type to which compressed air is fed by a pipe 52 from a compressed-air supply tank 53, but the supply may come from some source other than the shop, as shown from the broken line 58 in Figure 7. The .drill holder 42 and associated parts are only briefly referred to as their detail construction for-ms no part of my present invention.

Another new feature, beside the mounting of the standard 5 and bracket 30, is that depicted in Figures 9 to 12 inclusive. In these figures. the bracket 30 is provided with a plate .54 hav: ing a plurality of arcuately positioned holes 55 therein to receive bolts adapted to fit .holes or slots 56 in a cooperative plate 51 fastened to the fixture 31. 54 .and iii may be shifted arcuately so that the drill D may be operated in vertical position as shown in Figure 9, or at right angles thereto as shown Figure 10, and since the bracket 30 is adjustable up and down on the standard 6 and arcuately thereabout, then, with all of the adjustments which have been described, the drill D may be brought into engagement with work at almost every conceivable angle.

Under some conditions, the plate .54 or its equivalent may be cast integral or fastened to the sleeve 28 as shown in Figure 13, thereby bringing the drill D closer to the standard 6; thereby shortening the leverage between the axial center of the standard 6 and that of the drill D.

The construction described provides means for holes, especially a horizontal one on an exact centre line without having the drill .follow an arc. Particularly is this true when the drill holder is mounted on a dove-tail slide as shown in Figure 4.

It will be obvious that certain details of the construction herein described may be varied without departing from the spirit of my invention or the scope of the appended claims,

With this construction, the plates 1 What I claim is:

l. A drilling mechanism including, a standard having adjustable gripping fittings at both ends, a sleeve having means for fastening it to the standard in positions along the length of the standard and over a wide arcuate angle with respect to the axis of the standard, a bracket having spaced arms carried directly on the standard at opposite ends of the sleeve, an antifriction bearing between the upper arm and the upper end of the sleeve and slidable with the sleeve, a fixture member mounted for arcuate adjustment on said bracket, a drill holder carried by said fixture member, means for adjusting the drill holder for normal operation of the drill, further means for shiftin the drill holder quick- 1y over a considerable distance with means for absorbing the shock of said quick shift.

2. A drilling mechanism including, a standard having adjustable gripping fittings at both ends, a sleeve having means ior fastening it to the standard in positions along the length of the standard and over a wide arcuate angle with respect to the axis of the standard, a bracket directly carried on the standard as defined by the length of the sleeve and positioned and mainly supported longitudinally of the standard by said sleeve, a disc-like fitting pivoted to said bracket and provided with arcuately arranged adjusting means, a fixture member having a disc-like fitting provided with arcuately arranged means for arouately shifting the secend-mentioned disc with respect to the first, and a drill holder adjustably carried by said fitting with means for normally and abnormally shifting the drill holder.

3.. A drilling mechanism including, a standard having adjustable gripping fittings at both ends. an elongated sleeve having means for fastening it to the standard .in positions along the length of the standard and over a wide arcuate angle with respect to the axis of the standard, a bracket having parts spaced as defined by the length of said sleeve and embracing the standard at opposite ends of the sleeve which forms the main support for the bracket, the bracket having spaced arms extending outwardly in a direction away from the standard, a fixture member arcuately mounted on and between said arms, a drill holder adjustably carried on the fixture member and supplemental means carried by the standard, at least at one end .for assisting the gripping fitting at this end in holding the standard in position when the fitting is used against a r' more or less fibrous material,

KIBBEY WHITMAN COUSE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 308,454 Yerkes Nov. 25, 1884 347,256 Russell Aug. 1.6., 1886 351,564 Ball Oct. 26, 1886 643,260 Tynan Feb. 13, 1900 1,245,360 Lutz Nov. 6, 1917 1,513,786 Rose J Nov. 4, 1924 2,122,933 Eckman July 5, 1933 FOREIGN PATENTS Number 7 Country Date 554,487 France ,Mar. 2, 1923

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