US769461A

US769461A - Mining machinery.

Info

Publication number: US769461A
Application number: US17811503A
Authority: US
Inventors: Erastus S Bennett
Original assignee: Individual
Current assignee: Individual
Priority date: 1903-10-22
Filing date: 1903-10-22
Publication date: 1904-09-06
Anticipated expiration: 1921-09-06

Description

PATENTED SEPT. 6, 1904.

E, S. BENNETT. MINING MACHINERY.

APPLICATION FILED OUT. 22, 1903.

N0 MODEL.

NITED STATES Patented September 6, 1904.

ERASTUS S. BENNETT, OF NEIV YORK, N. Y.

MINING MACHINERY.

SPECIFICATION forming part of Letters Patent No. 769,461, dated September 6, 1904.

Application filed October 22, 1903. Serial No. 178,115. (No model.)

To all whom, it rnayconcern:

Be it known that I, ERASTUS S. BENNETT, a citizen of the United States, residing at New York, State of New York, have invented certain new and useful Improvements in Mining Machinery, of which the following is a specification.

My invention relates to mining apparatus, and particularly to that form of such apparatus in which excavating means is supported on a car adapted to run upon a track, the said car supporting other heavy machinery or elements, such as a carrier for the material, separating-tanks, and the like. In the use of such a plant or apparatus it is necessary frequently to shift the boom in a direction laterally of the car, so that the dipper or shovel may reach the material desired, and in such case there is a tendency for the carbody to be tipped over, and this will occur unless some provision is made to prevent; and my invention relates to means designed to support the car against any such tendency.

My invention consists in the features and combination and arrangement of parts hereinafter described, and particularly pointed out in the appended claims.

In the accompanying drawings, Figure 1 is a plan view of the invention; .Fig. 2, a side elevation; Fig. 3, a detail sectional view on line 3 3 of Fig. 1 looking in the direction of the arrow; and Fight, a detail side view, partly in section, looking from the right of Fig. 3.

In the drawings, 1 indicates the car-body, and 2 the trucks on which the same is carried. The trucks are combined with cross-beams 3 of I-irons &, each beam consisting of two of said I-irons arranged parallel with each other and suitably secured in this relation to the car-body or trucks. At the ends of the crossbeams and between the I-iron of which the beams are composed I arrange guideways 5 of any desired form, having walls 6 extending vertically and with an opening between them adapted to receive a rack-bar 7, which is titted to the said guideway or channel so as to slide easily vertically, while yet being closely confined in the said channel to maintain its vertical position. The rack-bar at its lower end is provided with a foot 8, havbeing carried by a shaft 16, extending vertically and rotating in bearings 17 on a bracket 18, secured to the vertical web of one of the I-irons, the bracket being adapted to fit also against the flanges of the said I-iron. The shaft 16 has a hand-wheel at its upper end, as at 19, and by turning this shaft the rackbar 7 may be thrust downwardly, so as to bear with its foot upon a beam or other support which is placed under the said foot. By reference to Fig. 1 it will be seen that there is 'one of these rack-bars at each end of each beam 3, and as these beams extend some distance upon each side of the car-body or truck the practical elfect is to extend the base of the car-body a considerable distance toward the side thereof by simply operating the several hand-wheels to thrust downwardly the rack-bars connected therewith, so as to form supports for the carbody at these points. The rack-bars, with their associated mechanism, may also be used as jacks to lift the carbody, with its truck, from the track-rails, if this should be desired for any purpose.

By reference to Fig. 3 it will be seen that the worm is located between the bearings 17, and in order to sustain the thrust a collar 20 is arranged below the worm, said collar having a V-shaped groove 21 in its lower side receiving antifriction-balls 22, which bear on a wearing-piece 23, supported on the lower bar 17. This wearing piece or collar has a spherical or curved upper surface upon which the balls rest, and this form of surface serves to shed any sand or dirt therefrom and prevent its accumulation in the ball-bearing. One advantage of the gearing, as shown, for operating the vertically-movable supportingbars is that the operation thereof will not be interfered with by any accumulation of any sand or dirt, as the said gearing will clear itself from any such material which may fall thereon.

The described mechanism instead of being used simply as a side brace for the car may be used as a leveling device therefor, and I show such a use of the mechanism, for instance, in an application for Letters Patent filed in the United States Patent Oflice of even date herewith, and indeed in the present instance the mechanism can be used for leveling as Well as for bracing.

I claim as my invention 1. In combination with a car-body, a vertically-movable rack-bar arranged to one side of the same, and working in a support connected With the car-body, a gear-Wheel meshing with the rack-bar, a Worm-wheel on the shaft of the gear-wheel and a vertically-extending shaft and Worm thereon meshing with the Worm-Wheel and means for operating the vertically-extending shaft, substantially as described.

2. In combination with the car-body, a vertically-movable rack-bar arranged to one side of the same, and gearing for operating said rack-bar comprising a gear meshing with the rack-bar and Worm-gearing for operating the said gear, substantially as described.

3. In combination with a pair of I-irons forming a cross-beam extending beyond the car-body, a guideway secured between the said I-iron and held by the upper and lower lateral flanges thereof, vertically movable rack-bar moving Within the said guideway, a shaft journaled in the said I-irons, a gear on the shaft and means for operating the said shaft, substantially as described.

4:. In combination with the I-iron beams, a

vertically-movable rack-bar between the I- irons, a gear-Wheel, a shaft journaled in the I-irons, and carrying the gear-Wheel, a Wormwheel on the outer end of the said shaft, a bracket secured to the outer side of one of the I-irons and a Worm-shaft journaled in the said brackets, substantially as described.

5. In combinationwith the-vertically-movable rack-bar, the car-body, supporting means extending from the car-body to the rack-bar, means for operating the rack-bar vertically, consisting of gearing including a worm-Wheel and Worm, a shaft extending vertically and carrying the said worm and a thrust-bearing for the said shaft consisting of a collar having a V-shaped groove on its under side, a Wearing-piece having a curved upper face and balls resting on the same and arranged in the V- shaped groove, substantially as described. 6. In combination with a car-body, a leveling mechanism comprising a Worm and connections'between the same and the car-body, and a thrust-bearing for said Worm consisting of a plate having a ball-race on its under side, and. a plate having an inclined upper face to receive the balls, substantially as described,

7 In a combination With a car-body, leveling means therefor comprising gearing and a thrust-bearing therefor having aplate grooved on its lower side and a second plate having an inclined upper side upon which the balls rest.

In testimony whereof I aflix my signature in presence of two Witnesses.

ERASTUS S. BENNETT. Witnesses:

MYRoN L. JUSTIN, J. R. Sco'r'r.