US294333A - Jesse b - Google Patents

Description

(No Model.)-

j J. B. PUGH. AUTOMATIGIGRAIN SHOVELER.

Patented Feb; 26, 1884.

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, UNITED STATES I PATENT OFFICE.

JESSE 1a PUGH, 'OFINDIANAPOLIS, INDIANA.

AUTOMATIC GRAlN-SHOVELER. I

' SPECIFICATION forming part of Letters Patent No. 294,333, dated February 26, 1884.

Application filed December 7, 1883. (No model.)

To aZZ whom it may concern.-

Be it known that I, J EssE B. PUGH, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana,

have invented a new and useful Improvement in Automatic Grain-Shovelers, of which the.

Similar letters refer to similar parts throughout the several views.

Figure 1 is a front view of the entire machine. Fig. 2 showselevated spool when the scraper is running back. Fig. 3 is a vertical-section of head g, with the spring at engaged with rim p, and the ratchet-teeth n and engaged.

Fig. lshows a section of a box-car, with its I floor O and sides F F F F, a door, D, opened toward the elevator-platform G, the chute of the elevator being between and on the same plane with the platform G and the car-floor 0; also, the leading-block a, which is fastened'to the floor O, and b, which is fastened to the platform G. The uprights H H are secured to the platform G and braced by the cross-beams I I, and such other braces as may be convenient and necessary. On the front of the uprights H H are the bearings c c, in which revolves the horizontal shaft d d d d, to which power, with continuous motion, is communicated by any suitable motor. The head 9 is secured to the shaft d d (1 cl and revolves with it. The screw h h h is upon the outer circumference of a cylinder which fits neatly but loosely around the shaft d d d d, and is detachedfrom the head 9, save when connected as hereinafter described; also, the guide-nut i,with its arm I, the'stopnut j, the spring 12, fastened at its outer or up: per end to the upper cross-beam I and at its lower end to the screw h h h, and forming a spiral fiat spring folding and unfolding upon itself, like the mainspring of a watch, and so adjusted that when the rope 7c 76 is wound up on the screw it h h the spring o has its folds tight together. The scraper L and the leading-rollers r s tare bolted to the lower beam I.

In Fig. 2 there is shown the additional feateeth a.

ture of the ratchet-tooth n, of which there are several of same size and shape and equidistant from each other, attached to the right-hand end of the cylinder, which carries the screw hh h, and having their straight side presented opposite to the direction of the motion of the shaft (1 d d, their other sides being beveled.

In Fig. 3 there is shown the additional fea ture of the ratchet-tooth o, of which there are the same number, of. the like shape and size and equidistant from each other, as ratchet- These ratchet-teeth 0 are attached to the left-hand end of a short cylinder of same size otherwise as the former cylinder, which carriesthe screw h h h, the right-hand end of which short cylinder is fixed to the inner surface of the head immediately around the shaft (1 d d. The ratchet-teeth 0 have their straight side presented with the direction of the motion of the shaft (2 d d, their other sides being beveled; also, the inwardly-projecting rim p on the inner surface of the head a groove cutin the screw h h h through and below the bottom of the thread. This spring is secured at its left end in the left end of this groove. The right-hand. end has on it the catch q, beveled on its right-hand or outer surface and vertical on its left-hand or inner surface, this-spring being of such length that it catches inside the rim p whenever the ratchetteeth a and o are fully engaged.

Having now described the different parts, it will be easy to see the working of the machine. The shaft (1 d d revolves continually, and by being connectedwith the cylinder, whose outer surface forms the screw h h, by the engaging of the ratchet-teeth'n and o and the spring 111. with the rim 10, gives to this cylinder the same motion as the shaft, thus winding the rope 70k on the cylinder, and drawing the scraper L, filled with grain,to the door of the car. The right-hand end of spring on extends above screw h h when engaging with rim p, and when not so engaged and not held down by nuti the beveled portion of the right-hand end rests against the left side of the head 9, thus preventing the cylinder from slipping to the right until power is applied to it for that purpose.

The guide-nut i, having threads cut on its inner surface to correspond to the threads on screw it h, and being prevented from revolving with screw it 72 by the passing of the rope k is through the guide-arm 1, moves laterally toward the right 011 screw h h, pressing the spring m down and disengaging it from rim 1), and by pressing against head g moves the cylinder bearing screw 71 h laterally to the left upon shaft (2 d, thus disengaging the ratchetteeth n and 0 and stopping the revolution of the cylinder. The revolving of the cylinder also winds up spring 1;, which then helps to turn the cylinder in the opposite direction, unwinding the rope, moving the nut 2' back to its original position,and lessening the labor of drawing the scraper L back to reload. The guide-nut j, by being screwed on the screw h 71, holds the upper end of the rope k k, and by being moved laterally increases or decreases the amount of rope used when necessary to change the distance which the grain must be moved. The leading-rollers 1- st accomplish to a certain extent the same result. \Vhen it is desired to move grain a considerable distance, roller 1* is used, when a little less 8, and for theleast distance 2. In drawingthe scraper backward the passing of the rope L 7; through the arm Zwill cause the arm to stop at apoint nearly over the roller used, and cause the cylinder, with its screw 71 71, to move again to the right, thus engaging the spring m with the rim 1;, and the ratchet-tecth n with the ratchet-teeth 0, and cause the cylinder to revolve again with the shaft. The leading-block a 5 1. The combination, in an automatic grainshoveler, of a shaft, d d, to which ratchetteeth 0 and head 5/, with rim 1;, are attached, and a cylinder bearing screw h h on its outer surface, and to which ratchet-teeth n and spring m are attached, and guide-nut i, with its arm 6, through which rope is It works, all substantially as described, and for the purposes specified.

2. The combination, in an automatic grainshoveler, of a scraper, L, rope is k, leadingblocks a and b, leading-rollers 1- s t, head g, bearing rim p on its inner surface, attached to shaft (l (1, cylinder bearing screw h h on its outer surface, encircling shaftd d, and having 1

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