US331773A - Hoisting and carrying machine - Google Patents

Description

(No Model) 2 SheetsSheet B. S. OROGKBR.

HOISTING AND CARRYING MAGH'INB.

No. 331,773. Patented Dec. 8, 1885.

HHHHHHHHHHHHHHHH (No Model.) 2 Sheets-Sheet 2.

B. S. GROOKER.

A I HOISTING AND CARRYING MACHINE. N0. 331,773. Patented Dec. 8, 1885.

N. FEFERS. PhcmLixm -w hm. Wiihmglum D. C.

BENJAMIN CROOKER,

li ament? OF TUPEKA, K ANS AS.

HOISTING AND oAReYiNe MACl-HNE.

SPECIFICATION forming part of Letters Patent No. 331,773, dated December 8, 1835.

Application filed Apri 8, 1885.

To all whom it may concern:

Be it known that I, BENJAMIN S. CROCKER, a citizen of the United States, residing at the city of Topeka, in the county of Shawnee and State of Kansas, have invented a new and useful Improvemeutin Hoisting and Carrying Machines, of which the following is a spccification.

The object of my invention is to change automatically at any given point vertical into oblique motion, so as, by the application of a given power in a given and unchanged direction, to lift a weight to a desired height, and then to carry it to any desired distance from the shaft or vertical line up which it has been lifted without stopping or readjusting the ma chinery, and, conversely, to provide that the weight shall return along the above-traced line when the power is withdrawn.

The device consists in a peculiar combination of the pulley and inclined plane by means of a trolley, illustrated in the accompanying drawings, forming a part of this specification, in which- Figure 1, Plate 1, is an entire side elevation of my machine in complete working order; Pg. 2, Plate 2, a side elevation of the trolley as it appears when held by its brake at any point on the inclined plane; and Fig. 3, Plate 2, a plan of the same.

Similar letters indicate similar parts of the device in the several views.

A and A are upright timbers or posts sup' porting the inclined plane at each of its ends. If the length of the inclined plane requires it, any number of additional supports may be provided between A and A.

The inclined plane consists of two parallel lines of timbers or stringers, B B, for sup porting the rails on which the trolley G is to run. These stringers have suflicient space between them for their entire length to permit of the passage between them of the tackle and brake attached to the trolley.

The troiley 0 consists of a stout frame carried on four wheels, D, and supports the pulleys E E. A cable, F, extends from the drum of the engine (not shown) to the pulley G of the post A, and from this post to the pulley Serial No. 161,530

E of the trolley, over this pulley, down through (No model.)

the trolley between the stringers B B, to and under the pulley of the tackle H; thence upward through the trolley again and around the pulley E, down through the trolley to the tackle-block, to which it is attached. This arrangement of the cable makes the relation of the power to the weight on the tackle as one to three. If, now, the pitch of the inclined plane be such as to lift the weight one foot as it carries it horizontally three feet, or, generally, if we establish the same relation of the power to the weight for the inclined plane as for the pulley, the tendency of the trolley will be to move upward on the inclined plane as the weight is lifted by the tackle when power is applied to the cable F; but if the inclined plane have a greater pitch say as of one to two and a half, or, generally, so that the relation of the power to the wci pt for it be greater than for the tacklethe trolley will not move up the inclined plane when power is applied to the cable until the tackle, with its weight, is lifted up and brought to a stop against the bottom of the trolley. Then the trolley will at once commence to travel up the inclined plane, carrying the weight with it to any desired point, and, conversely, when the power is withdrawn, the weightwill descend the inclined plane with the trolley, but wili not drop away from it till the trolley is brought to a stop.

That the trolley may be stopped at any point on the inclined plane, a brake is provided, consisting of an axle, I, of metal, constructed with a block, 2', at any desired point between its ends, having one or more holes, '5 2', bored through it breadthwise, the axle be ing fitted with journals playing in boxes K, secured to the under side of the trolley at or near its uplifted end. This axle is sufficiently offset from the trolley to permit of a complete revolution of the block '5. One or more wire ropes, L L, are passed through the holes *i i with an easy play, while their ends are at tached, respectively, to the posts A A, so that the ropes are just barely slack.

At one end of the axle I a lever,-M, of any desired length and of equal arms, is secured rigidly at its center. At its ends are sheaves m m. This lever is attached at right angles with the holes ii in the block 1'. A flexible manipulating-rope, N, is, at one of its ends, secured to the standard A at a point about in line with the ends ofthe brake-ropes L L. This rope N is carried over the upper sheave, m, of the lever M, and down and around the under sheave, m, and thence to a point, 0, of the standard A,where it passes through the standard over the pulley P, and is then attached taut toa horizontal or slightly-elevated lever, Q, which is operated by the hand. When this lever is depressed, the rope N is tightened and swings the arms of the lever M in the arcs R R, and equally swinging the block I, thus making breaking bends in the ropes L L, which are made additionally effective by auother bend over the offset rod S, attached to the under side of the trolley, being provided with a thimble to prevent a wearing friction.

When the lever Q is elevated, the ropes L L are released, and the trolley is again free to move down or to be drawn up the inclined plane. The brake-ropes L L are located on one side of the cable F and the manipulatingrope N upon the other side.

That I claim, and desire to secure as my invention by Letters Patent, is

1. In a hoisting and carrying machine, the combination of the pulley with the inclined plane illustrated by the tackle H, the inclined plane B B, with its trolley O, fitted with pullcys E E, and cable F, all constructed and operating substantially as and for the purpose hereinbet'ore described.

2. The trolley-brake consisting of the axle I, with bored block 13, and lever M, in combination with the brake-ropes L L, and manipulating-rope N, and offset rod S, substantially as hereinbet'ore described.

BENJAMIN S. OROOKER.

\Vitnesses:

J. H. Snow, WM. H. PooR.

Images