US376424A - Self and dennison billings smith - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

P. B. BARROWS.

'OOAL SCOOP.

No. 376,424. Patented Jan. 17, 1888.

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ATTORNEYS.

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2 Sheets-Shet 2.

(No Model.)

F. B. BARROWS.

GOAL SCOOP.

No. 376,424. Patented Jan. 17, 1888.

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N. PETERS. Phuwulhu m lm. Washinglon. I164 UN TED STATES PATENT Orrrce.

FREDERICK BALCH BARROYVS, OF DULUTH, MINNESOTA, ASSIGNOR T O HIM- SELF AND DENNISON BILLINGS SMITH, JR, OF SAME PLACE.

COAL-SCOOP.

$PECIPICATION forming part of Letters Patent No. 376,424, dated January 17, 1828.

Application filed March 23, 1887. Serial No. 232,091. (No model.)

stances, and has for its object to provide an effective and durable scoop of this character.

The invention consists in certain novel features of construction and combinations ofparts of the scoop, all as hereinafter described and r5 claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification,

in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of my improved coalscoop, with the overhead track and carriage suspendirigit,shown in dotted lines. Fig. 2 is an end view of the scoop, partly broken away. Fig. 3 is a central sectional side elevation ofthe scoop in open condition,as when dumping its load, and partly broken away, and with parts indicated in different positions in dotted lines; and Fig. 4 is aplan view of the scoop, partly broken away and in section. V

The scoop proper is formed of two parts, A .A, open at their inner sides and meeting at their inner edges, 0 a,when the scoop is closed. These parts A A are, pivoted on or by heavy steel pins B B to two plates, 0 O, to which are fixed tubes D'D, through which the pivot-pins B B pass. The pins B passthrongh the opposite side walls of the parts A, and are retained in place by pins or eotters I), passed through them outside of the scoop-walls. The tubes 0 D D extend from one side wall of the scoop parts A to their opposite side walls, thereby forming stays both to the sidesof the scoopseetions and to the frame-plates O O, and holding the plates in parallel planes to give proper support to the guides on which slide the cross pivoted at e-e the lower ends of two bars, E

E, the upper ends of which are pivoted on one 0 G, and at its top the cross-head F has a tenon, H, which has a side notch, h, and is adapted to enter asoeket, i, in an upper crosshead, I, which is also adapted to slide on the guides G, and has fitted in it a bolt, J, which isadapted to automatically catch into the notch h of the lower cross-head tenon H to lock both erossheads F I together. The bolt J has a pivotal connection at j with a triplever, K, which is pivoted at k to lugs on the upper cross-head, l, and is connected pivotally at 76 to one end of a bar or rod, L, which is fitted to slide in a hole, Z, in the cross-head, and at the opposite side of the cross-head a spring, M, is placed on the projecting end of the rod L between the crosshead and a pin, Z, in the rod. The spring acts normally to draw the bolt J inward into position for looking with the tenon H of the lower cross-head. The upper cross-head, I, is connected by a pin, a, to the straps of a sheave or pulley, N, and a hoist rope or cable, 0, rove in the sheave suspends the entire scoop from an overhead carriage,0, running on tracks 0 for conveying the scoop to desired places-for loading and discharge; or the scoop may be suspended by the sheave and cable N O, or otherwise, from a derrick arm' or boom, or any other swinging or traveling support.

In a suitable bearing, 1), on one of the frameplates 0 is journaled a short shaft, P, to one end of which is fixed a triparm, R, having a plate, r, which normally stands behind the free end of the lever K, and to the other end of the shaft P is fixed an arm, S, which normally stands upright and parallel with the arm R, in which positions the parts R S are held by a spring, T, which is fitted in a case, t, fixed to the plate 0, and is connected at one end to the ease and at its other end to the arm S, which it draws to a stop against the spring-case t, or it may be a pin or other projection on the plate G. The arm S is adapted to strike a weight, U, suspended from the overhead track 0, or any other suitable stop, at the place where the .scoopis to dump its lead.

Overhanging plates {1 g, fixed to the tops of the guides G G, support the emptied scoopbody A A from the top of the upper cross-head, I, and may also form stops to limit the upward movement of this cross-head about at the time the edges a a of the parts A A of the scoop come together.

The operation is as follows: After the scoop is dumped of its load, its two parts A A will beheld by the lowered heavy cross-head F and the rods E E in the position shown in Fig. 3 of the drawings, and when the scoop is carried back over the coal-heap for reloading it will be lowered to the coal, on which its edges a a will rest, and the hoist-ropeO will be slaekened to lower the upper cross-head, I, until its bolt J looks with the lower crosshead, F, as indicated in dotted lines in Fig. 3; and as the hoist-rope is drawn upon both crossheads I F will be lifted together and the bars E E will close the scoop as it fills itself and the edges a c of the parts A A come in contact, and the filled scoop maybe raised and run off or swung to the place of discharge,where the arm S will strike the weight U, or equivalent stop, and withdraw the bolt J from the notch h of the tenon on the lower cross-head, F, and allow this head to fall as the scoop opens to discharge its load. Immediately the scoop opens, the springs M and T will reset the bolt J, its lever K, and trip-arm It to normal positions to allow sliding of the cross head I as it is again 10wered to load the scoop. The spring M is made quite stiff to offer considerable resistance to compression for easing the shock of quite violent contact of the trip-arm S with the trip weight or stop U as the bolt J is withdrawn, and thus prevent injury to the parts, and also assure the prompt and positive return of the latch-bolt to normal position.

It is obvious that this scoop may be used to advantage for lifting and conveying other substances besides coal, as it may be used for handling sand or grain or for excavating purposes.

Having thus deseribed my invention,what I claim as new, and desire to secure by Letters Patent, is-

1. A scoop made with two body parts or sections pivotally connected to a supportingframe by means of bars or pins fitted to the walls of the scoop-sections and passed through tubes fixed to the supporting-frame and fitted between opposite side walls of the scoop-sections, substantially as herein set forth.

2. The combination, in a scoop,of two body parts or sections, A A, a frame comprising opposite plates (1 0, tubes D D, fixed to the plates and fitted between opposite side walls of the parts A A, and pivots B B, passed through the side walls of the parts A A and also through the tubes,substantial ly as shown and described.

3. The combination, in a sc0op,of two parts or sections, A A, a frame comprising plates 0 0, tubes D D, fixed to theplates and fitted between opposite side walls of the parts A A,

pivots B 13, passed through the side walls of guides, and rods E E, JIVOiJtLllY connected at one end to the cross-head and at the other end to the parts A A of the scoop, substantially as shown and described.

4-. A scoop made with two parts, A A, )ivoted to a frame or support having guides provided with stops 5 two cross-heads fitted to slide on said guides and adapted to latch together, rods connected pivotally to the lower crosshead and to the scoop-sections A A,and operating to load and close the scoop as the cross-head is drawn upon, and a trip device adapted to unlatch the two cross-heads by contact with the weight or stop at the place of discharge, substantially as herein set forth.

5. The combination, in a seoop,of two parts, A A, pivoted to a frame or support having guides provided with stops 5 two cross-heads, F .I, fitted to slide on said guides, rods E E,connected pivotally to the lower cross-head, F,and to the scoop-sections A A, and operating to load and close the scoop as said cross-head is drawn upon, said cross-head F havinga tenon, II, notched at 71, and the cross-head I- having a recess receiving the tenon and provided with a spring-actuated latch-bolt, J, adapted to lock the two cross-heads together, and a trip device arranged with the latch-bolt and adapted to disengage the bolt to release the lower crosshead by contact of a weight or stop at the place of discharge, substantially as herein set forth.

6. The combination, in a seoop,of two parts or sections, A A, pivoted to a frame or support having guides provided with stops 9, two cross-heads, F I, fitted to slide on said guides, rods E E, connected pivotally to the lower cross-head, F, and to the scoop-sections A A, and operating to load and close the scoop as said crosshead is drawn upon, the cross-head F having a tenon, II, notched at h, and the cross-head I having a recess receiving the tenon II, a spring actuated latch bolt, J, adapted to lock the two cross-heads together, and a trip device comprising a lever, K, pivoted to the cross-head I, and pivoted, also, to the bolt J, a bar, L, also pivoted to lever K and provided with a retracting-spring, M, a shaft, I, pivoted to the scoop-frame and provided with an arm, It 7', adapted to withdraw the bolt J, and aspringdrawn arm, S, fixed to shaft 1 and adapted to strike a weight or stop at the place of discharge of the scoop to disengage the bolt from the lower cross-head, substantially as shown and described.

FREDERICK BALOH BARROWS.

\Vitnesses:

A. O. BARLOW, DEXISON B. SMITH, Jr.

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