US1023595A - Mounting for mining tools or machines. - Google Patents

Description

W. PRELLWITZ.

MOUNTING FOB MINING TOOLS 0B- MACHINES.

APPLIOA'HOI mum MAY 0, 1009.

1,023,595. Patented Apr. 16, 1912.

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W- PRELLWITZ.

MOUNTING FOR MINING TOOLS 0B MACHINES.

APYLIOATIOK nun MAY 6, 1909.

Patented Apr. 16, 1912.

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wine 0) jnwrefop UNITED STATES PATENT OFFICE.

WILLIAM PRELLWITZ, 0F EAS'ION, PENNSYLVANIA, ASSIGNOR T0 INGERSOLL-RAND COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

MOUNTING FOR MINING TOOLS OR MACHINES.

To all whom it may concern:

Be it known that I, WVILLIAM PRELLWITZ, a citizen of the United States, and resident of Easton, in the county of Northampton and State of Pennsylvania, have invented a new and useful Mounting for Mining Tools 0r Machines, of which the following is a specification.

My invention relates to a mounting for mining tools, and is particularly well adapted to the mounting of a coal cutting tool in various advantageous positions on a primary support for floor, ceiling or breast cuts, while the operating handles for controlling the feed of the tool and its swing through its cutting are are maintained in the same relative position one to the other and both within easy reach of the hands of the operator.

A practical embodiment of my invention is represented in the accompanying drawings in which,

Figure 1 is a view in side elevation of a tool mounted on a column in position for making what I am pleased to term a breast cut; Fig. 2 is an end view of the same; Fig. 3 is a top plan view of the same; Fig. 4 is a section in the plane of the line A-A of Fig. 1; Fig. 5 is a view in side elevation, showing the same tool in a position for a low down cut; Fig. 6 is an end view of the same; Fig. 7 is a similar view partly in section; Fig. 8 is an inner end view of the main supporting arm, showing the two sets of half bearings formed thereon; Fig. 9 is a view of the same in side elevation, showing also the hearing at the opposite end of the main supporting arm; Fig. 10 is a top plan View of the same, and Fig. 11 is an end view of the same opposite that shown in Fig. 8.

The primary support which may conveniently be a column is denoted in the several figures by 1; the shell of the cutting tool by 2, the tool itself as a whole, by 3, its feed screw by 1, the handle for operating the feed screw by 5, the worm wheel for swinging the machine back and forth through its cutting arc, by 6, the worm for operating the worm wheel, by 7, and the handle for operating the worm by 8. These parts may be of any well known or approved form, my present invention being rected to the means for mounting the parts.

Specification of Letters Patent.

Application filed May 6, 1909.

Patented Apr. 16, 1912.

Serial No. 494,446.

The shell 2 of the tool is supported by means of a tapered stem 9 in a tapered socket 10, in which it is firmly locked by means of a bolt 11, as is usual. The socket- 10 is formed in the end of a supporting arm 12 which is provided at its opposite end with a stem 13, preferably at an angle of 90 to the longitudinal axis of the socket 10, the said stem 13 being provided with a shoulder 14 and with a tapered portion 15 by means of which it is drawn snugly into engagement with the wall of a corresponding socket 16 in the rotary hub 17 of the worm wheel 6. The means for holding the stem 13 fast in the hub 17, consists in the present instance, of a screw 19 tapped into the end of the stem and passing through a cap plate 20 resting against the end of the hub. Any tendency of the cap plate 20 to rotate relatively to the stem 13, is overcome by a. pin 21 set through the cap: plate into the stem eccentric to the center of the cap plate and stem.

The hub 17 is mounted in rotary adjustment in the plane of the worm wheel 6, in a bearing one-half of which is denoted by 22, and the opposite half of which, denoted by 23, is formed in the end of the supporting arm 21. The portion of the hub 17 which rotates within the bearing 22, 23, is in the form of a segment of a sphere and the hearing is similarly formed to receive it. The half bearing 22 is held in the desired rela tion to the half bearing 23, by means of bolts 25, 26, passing through the half bearings 22, 23 and along an annular groove 27 formed in the hub 17. The opposite end of the supporting arm 24, to wit: that end toward the column 1, is provided with a half bearing 28, extending longitudinally at an angle of 90 to the longitudinal axis of the bearing 22, 23, and also with a half bearing 29 extending parallel with the longitudinal axis of the bearing 22, 23. The half bearing which co-acts with the half bearings 28, 29, is denoted by 30, and is clamped to the column 1 and to the comp-anion half bearing on the end of the arm 24, to wit: either the bearing 28 or the bearing 29, by means of bolts 31, 32. The half bearings 28, 29, in the end of the arm 24 are each provided with a pair of bolt holes as clearly shown in Fig. 8, to receive the bolts 31, 32, and the single half bearing 30 coiiperates with either the one or the other of the half bearings 28, 29, at pleasure, to locate the arm 24 with its bearing 22, 93, either in a horizontal or vertical position, as may be desired.

\Vhen located, as shown in Figs. 1 to 4 inclusive, the tool, denoted by 3, is in position to make a breast out, while in the form shown in Figs. 5, 6 and 7, the arm is turned one-quarter around, thereby bringing the tool low down, as shown in Figs. 6 and 7, for a low down or floor cut. It is obvious that the main supporting arm 24 might be turned a quarter way in the reverse direction, thereby raising the tool by sliding the support along up the column in position to make a ceiling cut close to the top and also that the arm 24 might be completely reversed or turned a half revolution instead of a quarter, in either direction, if so desired.

It will be observed that in. supporting the tool in these various advantageous positions, there is no part of a hearing or additional fastening required, identically the same parts being used whatever may be the position required; and it will furthermore be observed that whatever the position which the parts may assume in rotating the main supporting arm 24 and clamping it to the column, the handles for feeding the tool and for swinging the tool back and forth through its arc cut, will be maintained in the same relative positions, always within convenient reach of the single operator to manipulate them. It will be further noted that the joint between the arm 12 and the arm 24 is in the nature of a ball and socket joint and serves, when the primary support 1 is, for any cause, somewhat out of a true vertical position, to provide for the adjustment of the stem 13 of the arm 12 to a true horizontal or true vertical position. Attention is also called to the position of the operating tool with its longitudinal axis in the plane of the longitudinal axis of the supportim stem 13 of the arm 12, whereby lateral or twisting jar or strain is minimized.

In using the word tool throughout the specification and claims I intend to include such devices as are commonly called machines, as well as the simpler form referred to sometimes as tools and sometimes as machines.

It is obvious that changes might be resorted to in the form and arrangement of the several parts without departing from the spirit and scope of my invention; hence I do not wish to limit myself strictly to the structure herein shown and described, but

\Vhat 1 claim is:

1. A mounting for a mining tool comprising a main supporting arm and a shell supporting arm, the main supporting arm being provided with a plurality of half bearings at one end. for engaging a primary support and a half bearing at its opposite end for receiving the shell supporting arm in swinging adjustn'ient and half bearings and bolts arranged to cooperate with the half hearings on the main supporting arm.

A mounting for a mining tool comprising a main supporting arm provided with a plurality of half bearings at one end and with a halt hearing at the opposite end. a shell supporting arm provided with a socket at one end and a stem at the opposite end extending at right angles to the socket, a worm wheel provided with a hub in which the said stem is seated, and halt bearings and bolts arranged to cooperate with the half bearings on the arm.

3. A mounting for a. mining tool comprising a shell supporting arm, a main supporting arm and a worm wheel hub, the shell supporting arm being provided with a shouldered stem seated within the worm wheel hub, the said worm wheel hub being formed as a segment of a sphere and provided with an annular groove and the main supporting arm being provided with half bearing fitted to receive said hub, a half bearing arranged to co-act with said half bearing on the main supporting arm and bolts passing through the said half bearings and the groove in the hub.

In testimony, that I claim the foregoing as my invention l have signed my name in presence of two witnesses, this fourth day of May 1909.

WILLIAM PRELLVVIT Z.

Witnesses:

F. Gnoncn BARRY, I'IENRY TIIIEME.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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