US655292A - Mining-drill. - Google Patents

Description

No. 655,292. Patnted Au 7, I900. J. WYNNE & v. v. HAIDACHER.- mums nmu..'

Apphcation filed Mar. 9, 1900.) (No Model.)

2 Sheets-Sheet I.

No. 655,292. Patented Aug..7 1900.; J. WYNNE & V. V. HA|DACHER.-

MINING DRILL.

(Application filed Mar. 9, 1900.)

2 Sheets-Shoat 2 (No Model.)

Wihgzsszs mils vnzns co. movaumo maven. n. c.

NITED STATES PATENT 'FF cE.

JOHN WYNNE, OF PLYMOUTH, AND VITUS V. HAIDACI-IER, OF WVILKES- BARRE, PENNSYLVANIA.

MINING-DRILL.

SPECIFICATION forming part of Letters Patent No. 655,292, dated August 7,1900.

Application filed March 9, 1900. Serial No. 8,034. (No model.) i

To all whom, it may concern:

Be it knownthat we, JOHN VVYNNE, of Plymouth, and VITUS V. HAIDACHER, of Wilkes- Barre, in the county of 'Luzerne and State of Pennsylvania, citizens ofthe United States, have invented a new and useful Mining-Drill, of which the following is a specification.

Our invention is an improved mining-drill, the object of our invention being to provide an improved feed mechanism for feeding a hand or power drill while the same is in op eration and to provide an improved form of drill provided with separable sections, whereby it may be lengthened or shortened as required, improved couplings for the said sections, and an improved separable centering drill head and cutter.

Our invention consists in the combination, with a pivoted supporting-box, of a sleeve swiveled therein, an endwise-movable drillshaft in the said sleeve and revoluble therewith, rockers connected, respectively, to the said box and said sleeve, means to cant the journal-rocker feed-rings on the feed-shaft, and the bearing-ring on the face of the canted journal-rocker and engaging the bearingring, whereby when the said shaft is rotated the same will be fed or moved endwise in the swiveled sleeve for the purpose of feeding the drill.

Our invention further consistsin the peculiar construction and combination of devices hereinafter fully set forth, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation, partly in section, of a mining-drill provided with animproved automatic drill-feeding mechanism embodying line 6 6 of Fig. 2.

our invention. Fig; 2 is a detail elevation of our improved mining-drill. Fig. 3 is a similar view of the same at right angles to Fig. 2. Fig. 4 is a sectional view of the feed mechanism. Fig. 5 is a transverse sectional view of the same, taken on the line 5 5 of'Fig. 1. Fig. 6 is a transverse sectional view taken on the Fig.7 is a detail perspective View of one of the feed-rings and its connecting-link. Fig. 8 is a similar view of the journal-rocker. Fig. 9 is aisim'ilar view of the bearing-ring.

In the embodiment of our invention illustrated herein the usual fastening-bar 1 is provided with anopening 2, in whichfis pivoted the stud 3 of a turning-yoke at, the lafiter being thereby adapted'to turn to any required position on the fastening-bar. A supportingbox 5, which is here shown as of cylindrical form, is provided with trunnions 6 on opposite shown, having a central opening 12, through,

which the supporting-box extends and ad apted to be canted on the said supporting-box. The latter is provided on one side, at right angles to the arms 8,with'a lug 13, in which is seated a set-screw 14:, which bears upon one side of the journal-rocker 11 and serves to cant the same. A spring 15, which is herein shown as a coiled spring, bears between the opposite side of the journal-rocker and a lug or ear 16, with which the supporting-box is provided on the side thereof opposite the lug The ends of the spring 15 are seated on the journal-rocker and in the lug 16. We do not limit ourselves to the form of 'sprin g shown here,as springs of other form may be employed in lieu thereof if preferred. The function of said spring 15 is to keep the journal rocker in engagement with the set-screw 14.

A tubular sleeve 17 is swiveled in the supporting-box and adapted to rotate freely therein. Said tubular sleeve is provided at its inner end with a head 18, annular in form,

which forms an enlargement thereof and enlarged head may be either formed inteand are adapted to be readily detached from said trunnions, being provided with open bearings 21, and near the ends of said rocking yokes 20 are open bearings 22-, which face in the opposite direction from the open bearings 21.

A drill-shaft 23, which may be of any suitable length, fits in the longitudinal central bore of the sleeve 17 and is provided on one side with a longitudinal groove 24, which is engaged bya spline 25, with which said sleeve is provided. The outer end of said drill-shaft is adapted for the attachment of an operating-crank 26, as at 27, whereby said drillshaft may be rotated, and the latter is adaptedfor endwise movement in the tubular sleeve 17, while said sleeve by reason of the spline and groove hereinbefore described is caused to rotate when the drill-shaft is turned.

Feed-rings 28 29, the interior diameters of which are something in excess of the diameterof the drill-shaft, are placed on the latter and are respectively connected to the opposite ends of the rocking yoke 20 by means of links 30 31, the latter being longer than the former, the said links being otherwise substantially identicalin construction. The feedrings are provided each on-one side with an arm or lug 32 projecting therefrom and hearing between the forked ends 33 of the links and having journal-pins 34 projecting from opposite sides of said arms or. lugs and hearing in central openings in the forkedends of the links, whereby said rings are adapted. to

be canted by said links on the drill-shaft, so as to frictionally engage or clutch the drillshaft. Each of the links is provided with a spring-arm 35, of suitable form, which engages an o'fiset or shoulder 37 on the inner side of the lug 32 of its respective feed-ring. Said shoulders or oifsets are eccentric to the pivotal connection between said. links and said feed-rings, and thereby said feed-rings are normally canted by said spring-arms and normally in engagement with the drill-shaft.

The feed-rings are oppositely disposed on the drill-shaft and are normally canted in opposite directions thereof, as shown in Fig. l, and the inner ends of their links are provided with oppositely-extending journal-arms 37, which are seated in open bearings 22 of the rocking yokes, which are mounted on the sleeve.

An annular bearing-ring 38 is fitted within an annular flange 39, with which the face of the journal-rocker is provided, and said annular ring and said face of said journalrocker are provided with oppositely-disposed annular races 40 for a series of bearing-balls 41, which reduce friction between said bearing-ring and said journal-rocker. The said bearing-ring is provided on opposite sides radially with pairs of lugs 42, between which are seated the inner ends of the links 30 31.

It will be understood from the foregoing description and by reference to the drawings, more particularly to Fig. 1 thereof, that the rocking yokes and feed-rings are canted by the bearing-ring which engages the face of the journal-rocker and that when the drillshaft is rotated the cant or inclination of the journal-rocker, which is held against rotar tion with reference to the st1pporting bo g 5,

will impart rocking motion to therocki-ng yokes20, which rocking motion will be also communicated to thefeed-rings, the latter being canted alternately in opposite directions, and thereby caused to frictionally encrease the speed at which the drill-shaft is fed, as may be demanded by the nature of the rock or coal in which the drill is operated, and this adjustment may be effected practically without interrupting the operation of the drill mechanism.

Ourimproved drill is made in separable sections 43, adapted to be detached from each other or connected together in series so as to lengthen the drill, as may be required by the progress of the work. Each of said sections comprises the' usual central longitudinal shank 44 and a single-threaded spiral flight 45 of any suitable pitch. The meeting ends of the separable sections of the drill are respectively formed with an angular conical socket 46 and a correspondingly-shaped projection 47, adapted to fit in said socket, where: by the. shanks of the sections are connected together and the meeting portions of the spiral flight of said respective sections are provided, respectively, with oifset recesses 48 and engaging portions 49 to contact therewith, as shown in Fig. 2, whereby the spiral flight of the sections of the drill when coupled together are continuous and uninterrupted.

The outer drill-section is provided with a clamping-head 50, comprising a plane member 51, formed integrally therewith, and a clamp plate 52, connected with the member 51 by a set-bolt 53. An angular socket 54 is formed in the opposing sides of the members 51 52 in line with the center of the drill-shank,

in which socket is secured the inner end of a which is to enlarge the opening made by the i centering-bit 55.

It will be understood from the foregoing that the centering-bit and cutter-bit may be readily detached from the drill-shank and others substituted in their stead when they become worn, broken, or in need of sharpening at a very slight expense and without materially retarding the operation of tlie drilling-machine.

It will be further understood that in some instances the fastening-bar 1 will be disused and a post supported at its ends be employed in lieu of said bar as a support for the drillfeeding mechanism, and we do not, therefore, limit ourselves in this particular, as any suitable means may be employed for supporting the drill-feeding mechanism When the same is in operation.

It will be further understood that our improved feed mechanism may be used for other purposes than feeding a drill, and we do not, therefore, limit ourselves to the use of our said feed mechanism in connection with a drill.

Having thus described our invention, we claim- 1. In a drilling-machine, the combination of a support, a revoluble sleeve therein, and a drill-shaft adapted to move endwise in and rotate with said sleeve, of a rocker on the support, means to cant the same, feed-rings on the drill-shaft, and connections between said feed-rings and said canted rocker, substantially as described.

2. In a drilling-machine, the combination with a support, a sleeve revoluble therein, and a drill-shaft adapted to move longitudinally in and rotate with said sleeve, of arocker on the support,means to cant the same, rocker-yokes on the sleeve, feed-rings on the drill-shaft, and connections between said feed-ring and the canted rocker, said connections engaging and actuated by the rocking yokes, substantially as described.

3. In a drilling-machine, the combination with a support, a sleeve adapted to rotate therein, and a drill-shaft adapted to move longitudinally in said sleeve, and to rotate therewith, of a rocker on the support, means to cant the same, a bearing-ring engaging said rocker, rocker-yokes connected to and rotated by the sleeve, feed-rings on the drillshaft, and links connecting said rings and rocker-yokes and bearing against the bearing-ring, substantially as described.

4. In a drilling-machine, the combination with a support, a sleeve adapted to rotate therein, and a drill-shaft adapted to move longitudinally in said sleeve, and to rotate therewith, of a rocker on the said support, a bearing-ring, ball-bearings between said ring and said rocker, means to cant the latter, rocking yokes connected to and adapted to rotate with the sleeve-links engaging the bear ing-ring and connected to said rocking yokes, feed-rings on the drill-shaft, connected to and actuated by said links, and the springs to normally cant said feed-rings, substantially as described.

5. In a drilling-machine, the combination of a pivoted support, adapted for universal movement, a sleeve to rotate therein, a drillshaft adapted to move longitudinally in said sleeve and to rotate therewith, a rocker, piv-' otally mounted on said support, a bearingring, revoluble on said rocker, means to cant the latter, rocking yokes, connected to and adapted to rotate with the sleeve, links engaging the bearing-ring and connected to said rocking yokes, feed-rings on the drill-shaft, connected to and actuated by said links, and the" spring to normally cant said feed-rings, substantially as described.

In testimony that we claim the foregoing as our own we have hereto affixed our signatures in the presence of two Witnesses.

JOHN WYN NE. VITUS V. HAIDAOHER.

Witnesses:

JAMES C. MUNsEY, J OHN I. LABAG.

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