US1366096A - Mining-machine - Google Patents

Description

0;. c. PERRY. MINING. MACHINE. H APPLICATION FILED APR. 21. I920.

Patented Jan. 18,1921.

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Be it known that l, CLARI-INGE C. Penna, a citizen of the lllnited tltates, residing at Percy, in. the county of Randolph and ldtate of Illinois, have invented certain new and useful lin 'iroren'ients in ll'lining-lvlachines of which the following; is a specification,

llfly invention relates to irnproveinents in mining machines and more particularly to a novel mechanism for rotating and feeding the drill shaft, and a novel, means for assembling the said mechanism.

The primary object ot the invention lies in the provision of a gear mechanism whereby the rotation of the shaft Willbe increased While the feeding of the shaft reduced, thus improving the drill to the extent of increasing its strength, durability, and cl? ficiency.

A further object of the invention lies in the novel means adapted in assembling the mechanism which permits the parts to be readily removed should they beconiie broken or otherwise inoperative.

Other objects and advantages of the in vention will be apparent during the course of the following description.

In the accompanying drawings forming; a

part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure l. is a part section and plan VlQW showing in detail the me :lumitun of my niachine;

Fig. '2 is a sectional View taken on. line 2-2 of Fig. 1 showing the connection oi the driving gear withthe screw shaft;

Fig. 3 is a detail view partly in section showing the removable sleeve through which the feeding of the shaft is ellmgterl;

Fig. l: is an end view ol the sleeve, and

5 is a fragmentary view showing the means :ior connecting the sleeve and gear,

In the drawings, wherein for the purpose of illustration l: have shown a pinto ed enibodiment of my invention, the nuu'leral fl designates a frame o l l-izubstantla reetanoul: r shape having alined apertures s and T at each of ends, the aperture (3 being: of larger diameter than the aperture 7. llxtending inwardly from one side of the frame and formed integr: l therewith is an arm ll havingan enlarged aperture ll at its tree end Which is in ali'nen'icnt with the apertures ti and 7 of the frame. Projecting laterallv lllweififiafiiw Letter-S Patentjlt atented Jan. to, llltljl hpplicatien filed April 21, 192:0. I

Serial No. fll'ElAGQ.

1.0 which permits the mounting of the frame upon posts in the usual manner.

A. beveled gear ll has an annular collar 12 which is journaled in the beau-inn- 6, as clearly shown in Fig. l. The collar of the gear is interiorly provided with a longitudinal rib or spline 1.3 which fits the long-itudh'lally extending groove l forined throughout the length of the screw threaded. shaft or bar 15. This bar 15 extends through. the apertures of the frame and the arm 8 being provided with any number of threads per inch as may be desired. A trusto conical shaped sleeve 16 having in terlor screw threads 17 is removably secured to the shaft 15, passing through the aperture 9 of the arm 8, The sleeve is provided with diametrically disposed trunnions 16 projecting from its side. A second beveled gear 18 has'annular flanges l9 and 20 projecting from each oi its sides. The gear 18 is connected to the sleeve by the bayonet shaped slots 18 which are adapted to receive the trunnions l6 forming a breakable conncction therebetwecn. 'lhe bore of the flanges is of a conical shape and is adapted to lit tightly over the sleeve ltl, as clearly shown in. Fig. l. The upper flange 20 of he gear wheel 18 is journaled in the aperture l of the arm ll and projects slightly above the arm having its outer periphery provided with screw threads 21. A locking ring 22 is threaded upon the end of the flange 20 being locked in its adjusted position by the set screw 23.

The sleeve 16 is more clearly illustrated in Figs. ll" and 1-. and comprises two sections 2st and 25 which are joined together by the interlocking apertul'cd lugs 26 having a pivot bolt LT passing thcrcthrough. The section 25 has depending downwardly from its lower peripheral edge adjacent the jointure oi the two sections, a lug 28 with an aperture E l through its lower extremity.

- Thus it is obvious that upon rotation of the 'handle the gears 11 and 18 will be Volved in the same direction, said gear ll rotating the shaft at a greater speed than the gear 18 is feeding the shaft. The gear 11 which is provided with the rib or spline 13 causes the rotation of: the shaft, while the gear 18 which is mounted upon the interiorly screw threaded sleeve 16 causes the screw shaft to be fed forward. If during the operation should the parts become worn or broken, the parts may be very easily removed by the operator. This is effected by first removing the locking ring 22 from the flange 20 of the gear 18, which will permit slight longitudinal movement of the gear and by loosening the wing nut 32 which adjusts the sleeve 16, the thread bar 15 may be removed therefrom. It is also a known fact that in the operation of machines of this character the threads are subject to considerable wearowlng to the strenuous work to which they are put, and should the threads n the sleeve 16 become useless, a new sleeve; could be easily replaced and the efficiency of the machine retained.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same, and that certain changes in the shape, site and arrangement of parts may be resorted to without departing from the spirit of the invention'or the scope of the subjoined claims.

Having thus fully described my invention what I claim is:

1. In a drilling machine thecombination of a frame having alined bearings at each end, a. lateral extending bearing between said bearings, a screw shaft passing there- -thr ough, a gear wheel keyed to the shaft, a

sleeve detaohably threaded to the shaft, a second gear wheel carried by the sleeve and supported by the lateral bearing, and a double cog wheel meshing with said gears for imparting movement thereto.

2. In a drilling machine the combination of a frame having alined bearings at each end, a lateral projecting bearing betwixt said bearings, a screw shaft passing through the bearings, a gear wheel keyed to said shaft, a sleeve threaded on the shall, said sleeve being formed of two sections hingcdly joined together and held by a. turnbuckle, a second gear carried by the sleeve, and a double cog wheel for imparting movement to said gears.

3. In a drilling machine, the combination of a frame having bearings at cach end, a lateral projecting bearing betwixt the ends ofthe frame, a screw shaft assing through the bearings, a gear wheel keyed to the shaft below the top bearing, a removable sleeve threaded on the shaft, a second gear wheel carried by the sleeve and supported by the lateral projecting bearing, a short shaft midway the length of the frame and disposed at a right angle. to the main shaft, a double cog wheel carried by said shaft and meshing with said gears, and a handle attached to the shaft for imparting movcnn-nt to said cog whecls.

4. In a drilling machine the combination of a frame having bearings at each end, a lateral extending bearing between said bearings, a screw shaft passing thcrcthrough, a gear wheel keyed to the shaft, a separable sleeve detachably threaded to the shaft, trunnionsextending from oppositc sides of the sleeve, a second gear wheel carried by the sleeve, said second gear wheel having a plurality of bayonet shaped slots to receive the said trunnions whereby the gear wheel is removably secured to the sleeve, and :1 double cog wheel n'ieshing with the said gears for imparting movement thereto.

in testimony whereof, I have aliixcd my signature in the n'esence of two witnesses.

C ARENCE (l. ll lllllY.

Witnesses Gnu. A. LICKISS, H. S. KNAUER.

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