US518703A

US518703A - Coal-drill

Info

Publication number: US518703A
Authority: US
Publication date: 1894-04-24
Anticipated expiration: 1911-04-24

Description

(No Model.) Y

J. W. SHALLBNBBRGER.

GOAL DRILL.

No. 518,703. I Patented Ap1u24, 1894,

WITNESSES;

luv swim,

UNITED STATES PATENT OFFICE.

JOHN WV. SHALLENBERGER, OF CANAL FULTON, ASSIGNOR OF ONF-HALF TO FRANK SHALLENBERGER, OF MASSILLON, OHIO.

COAL-DRILL.

SPECIFICATION forming part of Letters Patent No. 518,703, dated April 24, 1894. Application filed December 1, 1893. Serial No. 492,409. (No model.)

To aZZ whom, it may concern.-

Be it known that 1, JOHN W. SHALLENBER- GER, a citizen of the United States, residing at Canal Fulton, in the county of Stark and State of Ohio, have invented certain new and useful Improvements in Coal-Drills; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, and to the figures of reference marked thereon, in which- Figure 1, is a view of the drill frame, showing the location and arrangement of the different gear wheels, and portions of the drill shaft, and feed bar. Fig. 2, is a transverse section of the removable power shaft, together with its thimble, and retaining bracket. Fig. 3, is a detached view of the interlocking clutch, and its lever. Fig. 4, is a detached view of the drill, showing the same properly attached to a drill shank. Fig. 5, is an end view of the drill, showing the cutting end of the same. Fig. 6, is a detached view, showing a portion of a drill shank. Fig. 7, is a detached view of one of the drill knives. Fig. 8, is a view through line a:-.r Fig. 4. Fig. 9, is a detached view of the worm-shaft bracket, and bearing. Fig. 10, is a detached view of the drill shaft, and feed bar. Fig. 11, is a view, showing portions of the feed bar, feed wheel, and the feed bar support. Fig. 12, is a detached view of the drill holding post.

The present invention has relation to coal drills, and it consists in the different parts, and combination of parts hereinafter described, and particularly pointed out in the vided with the set-screw 5. For the purpose of providing a suitable bearing for the power shaft 3, the thimble or box 6 is provided, said For the purpose of causing the wheel 8 to communicate rotary motion to the drill shaft 9, and at the same time permit the drill-shaft to move lengthwise, said drill-shaft is provided with the longitudinal groove 10, which groove receives the key 11, said key being securely fixed to the wheel 8 or its equivalent, and the portion of said key that is located in the groove 10 is so adjusted as to size, that it will easily move back and forth in saidgroove, as hereinafter described.

To one side of the wheel 8, and at the end of its hub 12 is located the pinion 13, which pinion, hub, and wheel 8 may if desired be 1 formed of a single piece, and I prefer to so being securely attached to the cross-shaft 18, i

said cross shaft being properly journaled to the bar 19, or its equivalent.

Upon the cross-shaft 18 is loosely mounted the feed wheel 20 which feed wheel meshes with the teeth 21 formed upon the feed-bar 22.

To one side of the feed wheel 20 is located the notched hub 23, which notched hub, is preferably formed integral with the feed wheel 20. To the outer side of the notched hub 23 is located the sliding collar 24, which collar is rotatably attached to the cross-shaft 18, by means of the pin 25, and for the purpose of allowing the collar 24 to be moved a short distance back and forth on the crossshaft 18 the slot 26 is provided.

For the purpose of providing a means for moving the collar 24 back and forth on its shaft said collar is provided with the groove 27, which groove is engaged by the yoked lever 28, said lever being pivotally attached to the arm 29, or its equivalent. The collar 24 is provided with the extensions 30, which extensions engage with the notched hub 23, thereby providing an interlocking clutch. It will be understood that when the collar 24 is disengaged from the notched hub 23, said hub and the feed wheel will be free to revolve upon the cross-shaft 18, during the time said shaft is at rest, which arrangement is for the purpose hereinafterdescribed.

To the front or forward end of the drill shaft 9 is removably attached the drill shank 31 by means of'the angular end 32 and a corresponding recess formed in the end'of the drill shank, or if desired these parts may be reversed, as it is of no importance whether an angular extension be formed upon the end of the drill shaft or said shaft be rovided with an angular socket; but at the drill end of the drill shaft I prefer to have the angular extension 33, to receive the angular socket 34.

The drill head 35 is provided with the curved flanges 36 to which flanges are at tached the blades 37, said blades being lo: cated and arranged substantially as shown in Fi 4.

%or the purpose of setting the blades 37 forward'as they become worn away from use, said blades are each provided with the elongated slots 38, through whichslots are passed the clamping bolts 39 or their equivalents.

In use when it is desired to drill a considerable distance into the coal or other material, additional sections of the drill shank 31 may be added, or shanks of diflerent lengths may be provided as desired. For the purpose of holding the frame 1, and its different parts in proper position to operate the drill, the post 40 is provided, which post is provided with the adjustable bar 41, said adjustable bar being provided upon one side thereof with the teeth 42, which teeth are for the purpose of engaging with the pinion 43,

said pinion being securely attached to the crank shaft 44, said crank shaft being properly journaled to the post 40. I

To the crank shaft 44 is attached the ratchet 9 adjustable bar 41 are to provide for different thicknesses of veins, so that the post proper can be securely attached to the top and bottom of the opening after the coal or other material has been removed. The post 40 is provided'with the notches 47 which notches are for the purpose of receiving the frame 1 in the ordinary manner. The object of providing arms 2 upon each side of the frame is to provide a means forlocating the power shaft upon either side of the frame, as it frequently happens that the drill frame must be turned upside down in order to bring the crank in position to be used. 1

In use after the drill, has been properly adjusted to the frame and post a crank is attached to the power shaft 3 in the ordinary manner, and said power shaft rotated, at the same time the lever 28 is adjusted so as to notched hub 23, thereby causing the feed wheel 20 to move thefeed bar 22 forward which carries with it the drill shaft 9 by means of the collar 48, which collar is securely fixed to the drill shaft 9. After the drill has been fed into the coal or other material the desired distance, the lever 28 is so adjusted that it will disengage the collar 24 from the notched hub 23, at which time the feed wheel 29 is free to revolve upon the shaft 18, thereby permitting the ,drill shaft 9 and its drill to be easily drawn backward, the collar 49 causes the feed bar to follow the backward movement of the drill shaft 9..

For the purpose of preventing the feed bar 24 from springing the bar 19 is located directly below the feed wheel 20, and for the purpose of preventing said feed bar from moving laterally the bar 19 is provided with the recess 50, which recess is formed by bending the portion directly below the feed bar downward, as illustrated in Fig. 11; but it will be understood that the same object can be accomplished by cutting the notch or recess 50 in the feed bar 22. For the purpose of securely holding the post at the desired place of adjustment the points 51 are provided.

For the purpose of preventing the frame 1 from moving laterally after said frame together with its different parts has been properly attached to the post 40, the ribs 52 are provided, which ribs come in contact with the sides of the post 40.

small to receive the end of theframe 1; but it will be understood that said notches should be formed of a size to correspond with the bar of the frame 1. p j

Thebar 53 together with the bearing 54 is for the purpose of holding the worm shaft 14 attached to the bar 19.

Having fully described my invention, what ent, is I vided with the'arms 2, having concaved faces, the power shaft, removably attached to the arms 2, the gear Wheels 7 and 8, the drill shaft 9,provided with the longitudinal groove 10, the key 11, the wheels 13 and 15, the shaft 14 provided with the worm 16, the wheel 17, mounted on the shaft 18, the feed wheel 20 looselymounted on the shaft 18, an interlocking clutch mechanism'connected with said feed wheel, the feed bar 22, provided .with teeth, and the drill head 35, substantially as and for, the purpose set forth.

In Fig. 12 the notches 47 are shown too in proper position, said bar being securely 1. The combination of the frame 1, probring the collar 24 into engagement with the i IIO I claim, and desire to secure by Letters Pat- '2. The combinationof the frame 1, provided with thearms2 the power shaft 3, the.

clamp 4, the thimble or bearing 6, the screw 5, gear wheels for communicating rotary motion to the drill shaft 9, and longitudinal movement to the feed bar 22, the drill shank 5 31, and the drill head 35, provided with the flanges 36, having adj ustably attached to said flanges the blades 37, substantially as and for the purpose set forth.

3. In a coal drill the combination of a frame 10 provided with the gear wheels 7, 8,13 and 15,

the worm 16, the wheel 17, the feed wheel 20,

JOHN W. SHALLENBERGER.

Witnesses:

O. W. HEISTER, F, W. BOND.