US1045329A - Hub-boring machine. - Google Patents

Description

@.RsoHomq.

`HUB BORING MACHINE.

APPLICATION FILED APR. l0, 1912. f 1,045,329, Patented Nov. 26, 1912.

ssHEET`s-sHEBT 1.

C. P. SCHOEN.

HUB BORING MACHINE. APPLIUATION FILED APR.10,1912.

Patented NOV. 26, 1912.

a SHEETS-SHEET 2.

C. P. SCHOEN.

HUB BORING MACHINE.

APPLICATION FILED APR. 1o, 1912.

1,045,329. Patented Nov. 26, 1912.

3 SHEETS-SHEET 3.

wvento'o @Zar-'leaf caen Glpi/Mmmm A 6 proved arrangement ofv drills with, ini- CHARLES F. SCHOEN. OF ERENCHTOWN,

PATENT FFlC.

NEW JERSEY. AssIGNoR oF ONE-HALFV To WILLIAM J'. WEISS, OF FRENCHTOWN, NEW JERSEY.

HUB-BORING- MACHINE.

v Application filed April 10,

i To all 'whom it mag/concern:

Be it known that l, CIL-muis F. SCHOEN, a citizen of the United States, residing at Frenchtown, inI the county of Hunterdon and State of New Jersey, have invented cerab tain new and useful Improvements in Hubl Boring Machines, of which the following is a specification.

My invention relates to improvements in hub boring machines.'the'object of the in--f vention being to provide an improved machine which will simultaneously bore the spoke receiving sockets in a wheel hub, and will insure the sockets and will form thfl work.

A further object is to provide an improper positioning of these quickly and efficiently perproved means for simultaneously turning the drills and moving them longitudinally, whereby they are forced into the hub and provide improved means for holding the hub and adjusting said holding` means in accordance with the thickness of the hub.

With these and other objects in view, the invention consists'in certain novel features of construction and combinations and ar rangements of parts, as will be more fully hereinafter described and 4pointed out in the claims.

Inthe accompanying drawings: igure 1,

Specificationv of Letters Patent.

l ets 16 extend.

is a top plan view illustrating' my nnprovements. Fig. 2. 1s a view 1n side elevation.

Fig. '3, is a view in vertical section. Fig. i, f is a itop plan view with the top ring'and parts carried thereby removed. Fig. 5. is an 1 inverted plan'view of the top ring with the bits removed from the drills. view on an enlarged scale section, on the line`6-6 of 4 is a view in cross section through one of the i pinions and its shaft. Fig. 8, is a detail peri spective view of one of the crank arms 32, l

Fig. 6, is a 2 in lonmtudinal i F. t F. y le. 5. 1g. l,

and Fig. 9, is a fragmentary view in section i on the line 9--9 of Figjf. y 1, represents a standard integral with a' base 2, and having its lower end hollow as shown at 3, while the upper portion of the f standard is provided centrally with a cylinl drical bore 4 for the reception of a shaft l' which is adjustedA vertically therein by means of a set screw 6. The upper end of the standard 1 is screwthreaded and screwed into a ring 7. This i ring 7 is provided with a circular series of years 30 integral Patented Nov. 26, 1912.

1912. Serial No. 689,721.

radially and upwardly project-ing arms l0,

This ring 11 is adapted to receive thereon an upper ring 12, said rings being secured together by screws 13. provided with a plurality of the screws dowel pins 14, which insure the 'proper positioningof the ring relative to each other. The upper ring is formed with a concentric circular groove 15, and across this groove a plurality of radially positioned drill sock- These drill sockets have bearings 17 in both walls of the groove 15, and are locked to turn'with beveled pinions 18 mounted in the groove 15.

The key 19, 'which its shaft 16, is mounted in a relatively long key way 20 in the shaft 16, so t-h t the shaft is allow-ed longitudinal mov ment, yet always locked to turn with the pinion.

:i spacing washer 21 is provided between the pinion and the outer wall of the groove 15 to sustain the thrust against t-he pinion The inner end of each shaft 16 is provide with a set screw 22 for securing the bit 23 in the shaft. On the outer ends of the shaft 16, blocks 24 are provided, and are held between collars 25 so-that the shafts are permitted a free turning movement in the blocks. Each block is provided at opposite sides with nions are supported in:recessed bearings 27 in the upper ends of bifurcated arms 29. The bifurcated arms 29lare keyed to shafts 28. andI the latter are supportedjin parallel with ring 11.-' Coiled are positioned on the shafts 29, pressure on sa-id shafts to turn openings for sj'u'ingrs 31 and exert a j them 1n a direction to maintain the several drills in their outward position ,as shown in the several figures of the drawing.

Crank arms 32 'are secured to the shafts 28. These crank arms project inwardly toward the ring ll, and each crank arm is Vprovided at its free end with a ring 33 connected to the hooked upper' end 34 of a turn buckle The crank arms 32 are located in pairs adjacent each other, and the two turn buckles 35 which connect the arms of a pair, are both connected by links 36 with an eye bolt 37.

The arms 2t), shafts 28, and crank arms 32 constitute bell-clunk-levers which when moved in one direction cause the drills The upper ring is 13, 'and also with openings forv locks the pinion 18 to trunnions 26, and these truncomprising a standard having a centralA tions as move inwardly and are normally held by the springs 31 in position to hold the drills in their outward position.

The links 36 project through slots 38 in@ the standard 1, and the eye bolt is positioned cent-rally in -the'lower hollowr vportion 3 of the standard, and projects through a foot lever 39 and is secured by a nut 40. The foot lever 39 extends through slots 41 in the standard, and is pivotally secured by a pin 42 to a bracket 43 on base 2,. f When the foot'lever 39 is depressed, all of the drills will vbe simultaneously forced inwardly toward the shaft 5 above referred to. On this shaft 5, above the standard 1, and spaced therefrom by 'a washer 44, is a pulley 45, and this pulley is adapted to be'driven by a belt from any suitable source of power.

The pulleyI 45 is connected by integral arms 46 with a circular beveled rack 47, and this rack 47 meshes with all of the pinions 18. The upper end of. shaft 5 is .reduced in diameter as shown at 43. forming a shoulder 49 which is adapted to receive and support the wheel hub to be bored.

1n accordance with the thickness of the, hub, this shaft 5 is positionedoand is secured at any 'adjustment by means of theset screw 6. When the hub is in position, and the rack 47 is turning so'. as to transmit a rotary Lmotion to all of the drills, the operator places his foot upon foot lever 39 and depresses the sa1ne,causng the several drills to cut int-o the hub to form the, pockets or recesses for the spokes. These' pockets or recesses will therefore be of uniform depth, and be properly spaced apart.

The operation can be quickly performed, and a great many hubs may be bored in a short'spa'ce 'of "time, as it is simply necessary to lift the foot ofi of lever 39 to allow thesprings 31 to'withdraw the drills, when a finished hub maybe removed and a new one placed injposition for drilling.

Various. slightchanges might be made in the general form and arrangement of parts described without departing' from my invention, and hence 1 do not limit myself .to the precise details set forth, but consider myself at liberty to make such changes and altera@ fairly fall within the spirit and s cope of the appended claims.

Having thus described my invention, what I claim 'as new and desire to secure by Let- 55A4 ters Patent 1s: 1. A machine of the character described,

longitudinal bore, a hub supporting shaft adjustably secured in the' bore -of the stand'- ard, a pulley supported on the' upper end of the standard and mounted to turn on the shaft, radially and upwardly projecting arms on theupper face of the pulley, a circuously moving ard, a pulley lar rack iiked to the arms, a ring supported i by the standard and larger than the rack, a circular series of radially positioned drills supported in the ring, means for simultaneall of said drills longitudi nally, and pinions'keyed tothe drills and meshing with the rack, substantially as de- 1 scribed.

2. A machine of the character described," comprising a standard having a central longitudinal bore, a adjustably secured in the ,bore of the standsupported on the uppe'rend of the standard and mounted to turn on the shaft, radially and upwardly projecting arms'on the upper face of the pulley, a circular rack xed to the arms, a ring supported on the standard, a circular'series of radially positioned drills'suppo'rted on said ring, pinhub supporting shaft ions on said drills meshing with the rack and keyed to the drills, whereby the latter are permitted longitudinal movement through the pinions, radially positioned arms fixed to the standard and supporting said ring, bellcrank-levefrs supported on said arms and engaging the drills, afoot lever projecting through the standard, and connecting devices extending through 'openings in thestandard and connecting the foot lever with the respective bell-crank-levers whereby vthe depression of the foot lever causes the drills to be moved inwardly simultaneously, substantially as described.`

3. A machine of the character described, comprising a. standard having a central longitudinal bore, a hub supporting shaft adjustably secured in the bore ofthe standard, apulley supported on the upper end' of the standard, and mounted to turn on the shaft, radially and upwardly "projecting arms on the upper face of the pulley', a circular rack vfixed to the arms, a ring, a circular series of radially positioned drillssupported on said ring, pinions on said drills meshing with the rack and keyed to the drills, whereby the' latter' are permitted longitudinal movement through the pinions, radially positioned arms `fixed to the standard and supporting said ring, bell-crank-levers supported on said arms and engaging the drills, means on the standards for simultaneously operating all of.said bell-crank levers, and springs coiled about the pivotal points of said bell-crank-levers exerting pressure on the saine to normally hold the drills in their outward position, substantially as described.

In testimony whereof I have signed my name to this speclfication .inthe presence .of

. two subscribing. witnesses.

CHARLES F. .SCHOEN Vitnesses:

WILLIAM C. QUICK, JAoo M. STORM.

. M opies of thi's patent may be obtained for nve cents each, by addressing the j Gommisslcasr 'or' atents, Washington,- D. IC.

Images