US1416742A - Misting and quarrying machine - Google Patents

Description

F. OLDROYD.

MINING AND QUARRYING MACHINE.

APPLICATION FILED JUNE I6. 1921.

Patented May 23, 1922.

1 3 SHEETS-SHEET 2.

F. OLDROYD. MINING AND QUARRYING MACHINE. APPLICATION FILED JUNE 16. 1921.

23, 1922. SHEET 3.

Patented May 3 SHEETS UNITED STATES PATENT OFFICE.

FRED OLDROYD, OF

CINCINNATI, OHIO.

MINING AND QUARRYING MACHINE.

Application filed June 16,

To all w how it may concern Be it known that I, Fnnn OLnnoYn, a citizen of the United vStates, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented a new and useful Improvement in Mining and Quarrying Machines, of which the following is a specification, reference being had to the accompanying drawing.

My improvement relates particularly to machines used for cutting into upright walls of coal, rock or similar material, the machine comprising cutting means actuated by the machine and adapted to be projected endwise into a wall of coal or other material or to be moved sidewise to make a sweeping cut in such material. My improvement is applicable to the machine of this type described in the application, Ser. No. 310,817, for Letters Patent of the United States filed by Cyrus S. ()ldroyd, July 14, 1.919, for an improvement in mining and quarrying inachines.

In the machine of said application, the body of the machine is supported on wheels adapted to travel on a rail track. At the forward end of said body is a member supported for rotation in a bearing which is horizontal and parallel to the length of the machine. To said rotary member are coupled the rear ends of two parallel links, the forward ends of which are coupled to a head which is to be held parallel to the axial line of said rotary member. 011 said head is hinged a cutting tool support, the hinge between said tool support and said head being on an axis which is perpendicular to the axial line of said rotary member. lVith said. support. is associated a member which may be turned, at the will of the operator, for turning said support laterally for swinging the cutting tool laterally. latch mechanism normally forms engagement between said turning member and said support. When said latch mechanism is disengaged, said support and the cutting tool may be swung sidewise on the axial line of said support, although said gear member is in engagement with the power transmission mechanism by which said gear member is to be turned. This invention has for its object to improve said latch mechanism.

In the accompanying drawings,

Fig. l is a side elevation of a machine embodying my improvement;

Fig. 2 is a side elevation of the forward Specification of Letters Patent.

Patented May 23, 1922.

1921. Serial No. 478,090.

part of said machine. showing the head a the cutting tool support and parts of t cutting tool and the latch mechanism;

Fig. 3 is a longitudinal, upright section of the mecnanism shown by Fig ,4;

Fig. 4i is the bottom View of a part of the mechanism shown by Fig. 2;

Fig. 5 is a section on the line, :14"), of Fig. 2, looking toward the left;

Fig. 6 is an u n'ight section along the middie of Fig. 5;

Fig. 7 is a perspective showing the latch. yoke and the latch lever and the latch lever post and spring and the latch lever spring anchoring post separated;

Fig. 8 is a horizontal section on the line, 88, of Fig. 7.

Referring to said drawings, A is the body of the machine. B, B are wheels resting on the track T, and supporting said body. C is the rotary structure supported at the front of the body for rotation on an axis wh ch is horizontal and parallel to the length of said body and the track. For convenience in description, it will be assumed herein that the parts of the rotary structure and of the members supported thereby which are upper most in Fig. l are upper parts.

The rear ends of links, D and D are hinged to the rotary structure on transverse shafts. D and. I), respectively. The forward ends of said links are hinged to the head, E, by means of transverse shafts, D and D respectively.

On the rear end of the link. I), are two segment gears, I), (only one appears in the drawings) each of which is engaged by a worm, C (only one of which is shown in the drawings) which are to be driven, at the will of the operator, from a motor located on the body of the machine, as described in the above-mentioned a 'iplication. By means of said gears, the links D and D, may be raised and lowered for bringing the head, it, nearer to or farther from the axial line of the rotary structure, said head being kept parallel, to said axial line.

On the shaft, I), is a gear worm, l)", which engages and transmits motion to the worm gear wheel, (t for the turning of the tool support, G, on the axial line of the shaft, G as will be herein described. This worm gearing is to be used only when it is desired to laterally swing the cutting mech anism supported by the tool support, Gr. At other times, the gear wo m B to lock the worm wheel, G against movement. The shaft, D is to be slowly turned, when de sired, by the mechanism described in the above-mentioned application.

The head, E, comprises a base member, E, and an upper cap member, E, which is bolted to the base member. The ears, E and E are on the base member. The base member extends forward and has a lower upright bearing, E which receives the lower end of the upright shaft. G The cap member extends forward and has a bearing, E in alignment with the bearing, E, andv also receives the shaft, G Between said two bearings, the shaft, G is surrounded by and keyed to a bevel gear wheel, E which meshes with a bevel gear wheel, E which is keyed on the shaft, Ff, which rests in a bearing, E formed between the base member, E and the cap member, E". On the rear end of said shaft is fixed a bevel gear wheel, E", which meshes with the bevel gear wheel (not shown) on the transverse shaft, D Motion is transmitted to the shaft, D as described in the above-mentioned applica tion. By means of this train of gearing, motion is transmitted from the shaft, D to the shaft, G The upper end of the shaft, G projects above the bearing, E, and said end has fixed upon it a sprocket wheel, G, which engages the cutter chain described further on.

The tool support has a cap plate, G", which has a bearing, G which surrounds the bearing, E, of the cap member, E and the tool support has a bearing, G, which surrounds the bearing, E. l "hrough this engagement of the bearings, G and G, the tool support is hinged to turn on the axial line of the shaft, G The worm wheel, G loosely surrounds the bearing, G and rests on the supporting plate, G and bears upward against the horizontal part of the support, Gr, and is adapted to be engaged to the tool support by the latch mechanism described further on. Thus the worm wheel is made concentric with the shaft, G As already described, the worm, D7, engages the worm wheel, G Hence rotation of said worm will. cause the rotation of the worm wheel, and since the worm wheel is secured to the tool support by said latch mechanism, said support must swing on the axial line of the shaft, G when the worm, D is turned.

()n the tool support is any form of cutting tool. The drawings show a cutter, H, secured to the support and a cutter chain, 1, applied to said bar.

But provision is made for releasing the latch mechanism, in order that the tool support and the mechanism supported thereby may be swung on the axis of the shaft, G by an operator whenever that is desirable for changing the position of said support more rapidly than can be done by the worm gearing or where the machine is being moved along passage ways wherein the course deviates from a straight line to such extent as to require the swinging of the tool support and the parts supported thereby out of alignment with the body of the machine.

For supporting the worm gear wheel, G against downward movement, the supporting plate, G extends across the lower ends of the bearings, E and G Cap. screws, G

extend upward through said plate into the' bearing, G. Thus said plate is made rigid with the support, G. Said supporting plate is extended forward beyond the periphery of the worm wheel and is there provided with a notch, (i which receives the lower end of a latch tongue, G and allows said tongue to rest between two teeth of the worm wheel, G. The tool support has a downward and forward-directed, longitudinal, median flange, G and the latch tongue is forked to receive the flange. A bolt, G extends through the two arms of said tongue and through said flange to hinge the tongue. Immediately in front of the upright position of the latch tongue is a notch, G, in the flange, G A handle, G is hinged to the forward edge of the tongue by a hori zontal bolt, G Normally the handle projects into the notch, G whereby the latch tongue is held in its upright and engaged position between two teeth of the worm wheel and in the notch, G of the latch plate.

When said latch tongue is in its engaged position,the tool support can turn on its up right axis only when said wheel turns on its axis, and that can occur only when the gear worm, D is turned by the ratchet mechanism described in the abovementioned applieation. But when the handle, G is moved toward the right out of the notch, G, the lower end of the tongue is moved forward until it clears the teeth of the worm wheel, the tool support is free to be swung manually in either direction on the axial line of the shaft, G

Regarding the working of the latch handle, it must be kept in mind that the machine, while in operation, is subject to strong vibration and that the rotary structure, C, is at times so turned as to bring the handle into the horizontal position which will tend to turn the handle by gravity so as to free the handle from the notch, i It is also to be observed that the parts of the machine are so heavy and such large strains are involved that it is not desirable to rely upon close fitting of the handle in the notch, G, to hold the handle in the notch by frictional eng'ageinentv Practice has shown that. it is desirable to give the handle a comparatively loose fitting in the notch and use extraneous means tending to place and hold the handle in the notch,

F or this purpose I have associated with the latch mechanism a spring which con stantly tends to move the handle in the direction for taking or keeping the position in the notch, it.

The bolt, G is made long enough to extend forward through a coiled tension spring, J The rear end oi said spring has an eye, J. A small bolt, J, extends through said eye into the handle, whereby said eye is held immovably. The forward end of the spring has an eye, J. A small bolt, J extends through said eye into the :torward part of the bolt, G and holds said eye immovably. The spring is woundto exert strain on the handle contra-cloclnvise as viewed in Fig 5. Thus even if the handle is not fitted for making strong frictional engagement in the notrh, G the spring will hold the handle in the notch regardless of the action of vibration or the action of gravity tending to more the handle out of said notch, regardless of the position into which the rotary structure may have been turned. Yet the handle is yieldingly held in the locked position, so that the operator may at any time love the handle out oi the locked position and then swing the tongue, G forward out o't engagement with the worm wheel, G whereupon the tool support and the cutting tool may be swung sidewise by the operator, the engagement between the wheel, G and the worm, D being undisturbed.

I claim as my invention,

1. in a machine of the nature described, the combination with a head and a neck structure having a neck restin in a horizontal liiearing, of supporting mechanism intermediate said head and said neck structure. a tool support hinged to said head on an axis which is transverse to the axial line oi": said neck, a gear member concentric with said axis, operator-control]ed means including a spring for securing said gear member to said tool support, and power means combined with said gear member for actuating the latter, substantially as described.

2. In a machine of the nature described, the combination with a head and a neck structure having a neck restin in a horizontal bearing, of supporting mechanism intermediate said head and said neck structure, a tool support hinged to said head on an axis which is transverse to the axial lino oi said neck, a worm gear member concentric with said axis, ope tttOP-CODtI'OllGd means includ ing a spring for securing said worm gear member to said tool support, and power means combined with said worm gear member ior actuating the latter, substantially as described.

In a machine of the nature described, the combination with a head and a neck structure having a neck resting in a horizontal bearing, and a neck-shaft in said neck, of

supporting mechanism ii'iterinediate sail head and said neck structure, a tool support hinged to said head on an axis which is transverse to the axial line of said neck, a gear member concentric with said axis, operator-controlled means including a spring for securing said gear member to said tool support, and power means combined with said neck shaft and with said gear member for actuating the latter, substantially as described.

4-. In a machine of the nature described, the combination with a head and a neck structure having a neck resting in a horizontal bearing, of supporting mechanism intermediatc said head and said neck structure, a tool support hinged to said head on an axis which is transverse to the axial. line of said neck, a gear member concentric with said axis, operator-controlled means including a spring -for securing said gear member to said tool support, gearing located on one oi the forward parallel link shafts and engaging gear member, and power means combined with said shaft for actuating the latter, substantially as described.

5. In a machine of the nature described, the combination with a head and a tool support hinged to each other on an axial line which is transverse to the length of the machine, operator-controlled gearing for slowly turning said tool support on said axial line, and detachable means including a spring for securing the tool support to a member of said gearing, substantially as described.

6. In a machine of the nature described, the combination with a neck structure having a neck resting in a horizontal bearing, of a head and tool support and a shaft which is transverse to the axial line of said neck, said head having a bearing surrounding said shaft and having a cap plate on which is a bearing also surrounding said shaft, and said tool support having a bearing surrounding the bearing on said head and said tool support having a cap which has a bearing surrounding the bearing of the cap plate of the head, a gear member loosely surrounding the bearing on the tool support, a sup porting plate secured to said bearing, opcrater-controlled means including a spring for joining said. gear member to said tool support, substantially as described.

7. In a machine of the nature described, the combination with a head and a tool support hinged to said head on a line which is perpendicular to the length of the machine, of a gear member journaled on the axis of said hinge, power means for turning said gear member, and latch mechanism including a spring supported by the tool support for temporarily making engagement between the tool support and said gear member, substantially as described.

8. In a machine of the nature described.

. 'iort havin a notch and hin edv the combination with a head and. a tool support hinged to said head on a line which is perpendicular to the length 01": the machine, o1 a gear member journaled on the axis of 7 said hinge, power means for turning said hinge mem er, and latch mechanism sup ported by the tool support for temporarily making engagement between the tool sup port andv said gear member, said latch mechanism comprising a tongue and a handle and a spring, substantially as described.

9. In a machine of the nature described, the combination with a head and a tool supto said head on a line which is perpendicular to the length of the machine, of a gear member journaled on the axis of said hinge, power means for turning said hinge member, and latch mechanism supported by the tool support and including a member for making engagement in said notch and a spring tending to hold said member in said notch, substantially as described.

10. In a machine 01. the nature described, the combination with a head and a tool support having a notch and hinged to said head on a line which is perpendicular to the length of the machine, of a gear member journaled on the axis of said l'iinge, power means for turning said hinge member, and latch mechanism supported by the tool support for temporarily making engagement between the tool support and said gear member, said latch mechanism comprising a tongue to engage said gear member and a handle to engage in said notch and a spring tending to hold said handle in said notch, substantially as described.

11. In a machine of the nature described, the combination with a head and a tool support hinged to said head on a line which is perpendicular to the length of the machine, of a gear member journaled on the axis of said hinge, power means for turning said member, and latch mechanism tor temporarily making engagement between the too! support and said gear member, said latch mechanism including a tongue hinged to said support, a handle, a bolt hinging said handle to said tongue, and a spring tending to hold said handle in the engaging position, si'ibstantially as described.

12. In a. machine of the nature described, the combination with a head and a tool support hinged to said head on a line which is perpendicular to the length oi": the machine, oil a gear member journaled on. the axis of said hinge, power means for turning said member, and latch mecnanisni for temporarily making engagement between the tool support and said gear member, said latch mechanism including a tongue hinged to said support, a handle, a bolt hinging said handle to said tongue, and a spring applied to said bolt and tending to hold said handle in the engaging position, substantially as described.

18. In a machine of the nature described, the combination with a head and a neck structure having a neck resting in a horizontal bearing, of supporting mechanism intermediate said head and said neck structure, a tool support hinged to said head on an axis which is transverse to the axial line 01"? said neck, a gear member on said axis, latch mechanism for normally forming engagement between said gear member and said support, said latch mechanism including a yielding member tending to maintain said engagement, and power means combined with said gear member for actuating the latter, substantially as described.

In testimony whereof I have signed my name, this 13th day of June, in the year one thousand nine hundred and twenty-one.

FRED oLD'RoYn.

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