US397295A - Coin-controlled lifting-machine - Google Patents

Description

(No Model.) 2 SheetsSheet 1. J. G. KEARNEY. 00m CONTROLLED LIFTING MACHINE.

No. 397,295. Patented Feb. 5, 1889.

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(No Model.) 2 Sheets-Sheet 2. J. G. KEARNEY. COIN CONTROLLED LIFTING MACHINE.

No; 397,295. Patented Feb. 5, 1889..

[/Ilfllllllllllllll. o I i L UNTTED STATES PATENT EEic JOSEPH G. KEARNEY, OF SAN FRi NCISCO, CALIFORNIA.

COIN-CONTROLLED LlFTlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 397,295, dated February 5, 1889. I

Application filed Mey 26, 1888. Serial No. 275,203. (No model.)

To all whom it may concern:

Be it known that I, JOSEPH G. KEARNEY, of the city and county of San Francisco, State of California, have invented an Improvement in Coin-ControlledLifting-Machines and I here. by declare the' following to be a full, clear, and exact description of the same.

My invention relates to the class of machines for testing the lifting powers of the operator in which the lifting force is directed against or upon a spring, the compression of which is indicated through suitable mechanism on a dial or register; and my invention consists in the constructions and combinations of devices which I shall hereinafter fully describe and claim. I

Referring to the accompanying drawings, Figure 1 is a perspective view of my liftingmachine. Fig. 2 is a vertical section of the same. Fig. 3 is an elevation of the parts within the back of the box. Fig. l is a perspective view showing the powe r-transmittin g connections between the pull-rod and vertical rod G. Fig. 5 is a side elevation of the locking-lever H and electro-magnet and an end view of said magnet. Fig. (i is a back view of the swinging contact K.

A is the box or case of the machine, having a platform, (1. Passing freely through this platform is a vertical pull-rod, 13, having on its top a handle, I). Screwed solidly into a casting on the platform is a cylinder, 0, encircling the pull-rod. \Vithin the cylinder and around the pull-rod is a spring, I), the lower end of which bears, through the intervention of washers d, upon a cross-pin, l), in the pull-rod, and its upper end bears with suitable washers, (1, against the cap or headpiece (i of the cylinder.

From the construction as far as described it will be seen that when the operator mounts the platform and, grasping thehandle h, pulls up on it, thelifting force is resisted by the spring, and the amount of its compression determines the movement of the pull-rod and the consequent degree of power. To indicate this power I have upon the face of the box. A a dial or register, E, over which plays a pointer, e, the shaft 6' of which projects through into the box and carries a pinion, 6 In the platform or foot portion of the box is mounted a rock-shaft, F, having connected with it by means of a screw, 5, at one end an adjustable arm, 7", which projects over a pin, b extending from the base of the pull-rod B. Connected or formed with the other end of the rock-shaft F is an arm, f, which carries an adjustable pin, f set in place by a screw, This pin is under the horizontal portion or base g of a vertical rod, G, the upper end of which is provided or formed with a rack, g, which engages the pinion, e of the pointer e. \V hen the pull-rod is lifted, it rocks the shaft F, and thus, through the rod G, moves the poi nter over the register.

Now, in. order to render the machine normally inoperative, I lock the pull-rod, as follows: The lower end of the pull-rod is formed withnotchcs 72, into which. the locking-lever H, which carries the armature i of the electromagnet I, falls, thereby holdingthe pull-rod and preventing .it from being lifted. To temporarily relieve it, I have the following mechanism and devices: In'the face or front of the box A is made an opening, a, for the passage of a eoinsay a nickel. From the back of this opening leads downwardly a guide-clu'ite, .l, which opens out and directs the nickel between the two contacts K and K of an electric circuit. The contact K is a fixed. metal plate; but the contact K is a swinging one pivoted at 7. The upper end or head of this contact is cut out or grooved at k on its inner surface, so as to form with the opposing contact, K, a guide or passage for the nickel, this passage being of a width enough less than the diameter of the coin to hold it temporarily, and said coin thus forms an electrical connection or conductor between the two contacts. The pivoted contact is held normally in this position by a weightedlever, L, which is attached to it. One end of this lever extends over to one side of the vertical rod G, and has a spring, I, which presses upon the other side of the rod. The rod itself is provided with an enlargement at g to insure the frictioi'ial contact of spring I. \Vhen the rod is down, this enlargement is below the spring, so that the lever I. is free and holds the pivoted contact K in place, and this holding is only increased as the rod moves up; but as the rod moves down the contact of the spring I on theenlarged portion g is sufficient to pull the end of the lever L down also,

which movement suing-s back the contact K and releases the nickel.

M is an electric battery, and an arc the cireuit-wires running to the contacts K and K and to the electro-magnet I.

The operation oi my machine is as follows: The normal position of the locking-lever ii is in engagement with the notches 7! of the pullred I), so that said rod cannot be lifted, and the whole machine is therefore inoperative. 'lhisposition oi. the locking-lever is una tt'ected by the electro-magnet, for the circnitis broken at the separated contacts K K. The operator now mounts the flattorm and. drops a nickel into the opening a. The coin passes into the box and down through the chute .I into the p: age between the contacts K K, where it rests tor the time being. In thisposition the coin com 'iletes the electric circuit, and the magnet, being energized, attracts its armature and withdraws the locking-lever II from the notches 7b of thepull-rod. 'lhepullrod, being new free, may be lifted, and through the mechanism described it lifts the vertical rod G, which through the rack and pinion operates the pointer, and thus the amount of the pull is registered on the dial. As soon as he lets go of the pull-rod, the vertical rod G descends of its own weight, and its enlarged portion, by frictional contact with the spring I, pulls down the lever I.-, thereby swinging back the pivoted contact K and freeing the coin, which. drops down into a suitable receptacle below. The dropping of the coin from between the cont-acts ln'eaks the circuit and allows the locking-lever II to return to its engagement with the pull-rod, thereby rendering the machine inoperative again. As soon as the small portion oi rod G comes opposite the spring I, the lever I. is Freed and swings the contact K over again to its normal position.

Ilavi ng t-h us described my invention, what I claim as new, and desire to secure by Letters Patent, is---- 1. In-a lil'l lug-machine, the pull-rod and the locking-lever holding it normally inoperative,

ing an enlarged portion for binding on the spring ol. the weighted lever, thereby swinging the pivoted contact, substantially as herein described.

:3. In a lip rig-machine, the box or casing having a platform, the dial or register on the face of the box and the pointer moving over it, and the spring-resisted pull-rod I), in coml)l11:t1fl01'l.\\'ltli the mechanism for transmitting the movement of the pull-rod to the pointer, consisting of the pin on the base of the pullrod, the rock-shaft 1*, having the end arms, the vertically-moval)le rod G, having a rack on its upper end, and the pinion, substantially as herein described.

In a lifting-machine, the box or casing having a platform, the dial or register on the face of the box and the pointer movin over it, and the springresisted pull-rod B, in combination with the mechanism for transmitting the movement of the pull-rod 'to the pointer, consisting of the pin on the base of the pullrod, the rock-shaft having the adjustable arm. over the pin and the arm on its other end provided with an adjustable pin, the vertically-mova-ble rod G over the adjustable pin and having a rack on its upper end, and the pinion on the pointer-shaft, substantially as herein described.

4. In a lifting-machine, the spring-resisted pull-rod having a pin in its lower end, the

dial or register having a pointer movingover it, and the mechanism for operating the pointer, consisting of the rock-shaft having end arms and operated b v tl1e pin of the pullrod, the vertically-n1ovable rod G, operated by the rock-shaft and havin a rack 011 its upper end, and the pinion on the pointer-shaft, in combination with the lockinglever engaging the pnll-rod and holding it normally inopera tive, a normally-open electric circuit having a fixed contact and a pivoted contact normally separated and adapted to receive ate1nporary conductor to close the circuit, an. electro-magnet in the circuit for rcleasin g the lockin combination with a normally-open electric circuit, separatwl contacts in said circuit for receiving a tenunn'anv conductor to close the circuit, one of. said contacts being pivoted, an electro-magnet in the circuit for disengz'iging the lOClClllgdOYOl from the pull-rod, and the mechanism for rclitwing the temporary conductor to open the circuit again, consist ingol' a weighted lever on the pivoted contact, said i l l l lever having a s iring, and the vertically-movl able rod G, operated by the pultrod and having-lever, the weighted lever on the pivoted contact, the movable rod G, having a spring, and the enlargement for swinging the pivoted contact and releasing the temporary conductor, whereby the circuit is opened again, substantially as herein described.

In witness whereof I have hereunto set my hand.

JOSEPH G. KEARXEY.

Witnesses:

H. Novnsn, ll. t. LEE.

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