US909606A - Crane mechanism for ladles. - Google Patents

Description

1). KENDALL.

CRANE MEGHANISM FOR LADLES.

APPLICATION FILED MAYZB, 1908.

909,606. Patented Jan. 12,1909.

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CRANE MECHANISM FOR LADLES. APPLICATION FILED MAY 28,1908.

909,606. Patented Jan. 12, 1909.

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DAVID KENDALL, OF ALLIANCE, OHIO, ASSIGNOR TO THE ALLIANCE MACHINE COMPANY, OF ALLIANCE, OHIO, A CORPORATION OF OHIO.

CRANE MECHANISM FOR LADLES.

Specification of Letters Patent.

Application filed May 28, 1908.

Patented Jan. 12, 1909.

Serial No. 435,426.

To all whom it may concern:

Be it known that I, DAVID KENDALL, of Alliance, Stark county, Ohio, have invented a new and useful Crane Mechanism for Ladles, of which the following is a full, clear, and exact description, reference being bad to the accompanying drawings, forming part of this specification, in which Figure 1 is a side elevation of crane mechanism embodying my invention; Fig. 2 is an end elevation of the same; and Fig. 8 is a detail view showing the arrangement of the hooks.

My invention has relation to crane mechdesigned to provide a simple and convenient form of crane mechanism for use in handling ladles, the object being to provide mechanism of this character by which all the operations necessary to be performed can be controlled by the operator from the operators cage or pulpit.

The precise nature of my invention will be best understood by reference to the accompanying drawings, in which I have shown an embodiment thereof and which will now be described, it being premised, however, that various changes may be made in the details of construction and arrangement by those skilled in the art without de parting from the spirit and scope of my invention.

In these drawings, the niuneral 2 designates an elevated runway for the crane, which may be supported in any usual or suitable manner.

8 is a car or carriage, which is mounted to travel on the rails 4: of this runway, and which is propelled by an electric motor 5, or by any other suitable or usual means. Mounted on this car or carriage is a winding drum 6, which is driven by motor 7 through the gears 8. Suspended from this drum by means of the two ropes or cables 9 woimd upon the drum at one end portion and fixed to the frame of the carriage at their other end portions, is a bar or beam 10 whose end portions are provided with guide-ways in the guide members 11 which depend from the frame of the car or carriage. The bar or beam 10 is provided with the sheaves 12, which are journaled thereto, and around which the ropes or cables 9 are passed.

13 is a ladle-carrying bar having a central upwardly projecting neck or journal 14 which is journaled to rotate in the central portion of the bar or beam 10. Secured to this neck or journal below the bar or beam 10 is a bevel gear wheel 15 whose teeth are engaged by the teeth of a bevel pinion 16 on a shaft 17, which is driven by the electric motor 18 mounted at one end portion of the bar or beam 10 through the train of gearing 18. .Swung from each end portion of the ladle-carrying bar 13 are depending hooks or depending arms 19, provided each with an open hook 19 at its lower portion arranged to engage the trunnions 20 of a ladle 21. These hooks, as shown in Figs. 1 and 8 are turned in opposite directions, for the purpose hereinafter described.

22 designates an operators cage, pulpit, or platform, which is suitably suspended by frame-work 22 from the frame of the car or carriage.

23 designates a controller mounted on said cage, pulpit or platform for controlling the motor 18, and also the motors 5 and 7.

24 designates a stop device, which is connected with the controller 23 by the link and lever connections 25, said device being arranged to be engaged by the bar or beam 10 at the limit of its upward movement so as to automatically actuate the controller to stop the motor 7 at the proper time in its upward movement.

The operator by his control of the motor 5 can move the car or carriage of the crane to any desired position; by his control of the motor 7 he can raise and lower the bar or beam 10; and by his control of the motor 18 he can turn the ladle at any desired angle. I have not shown the details of the controller and their connections with the-several motors, as this forms no part of my invention, and such controller with the connections therefor are well known in the art.

- By the arrangement of the two hooks 19 so that they open in opposite directions, the operator can lower the ladle into any suitable support provided therefor, and then by rotating the bar 13 can rotate the hooks 19 out of engagement with the trunnions 20, thereby allowing the ladle to be left in the supported position. In the same manner the hooks can be rotated into engagement with the trunnions for the purpose of picking up and lifting the ladle.

The mechanism described enables the operator to perform all the necessary movements of the ladle, from the cage or platform.

What I claim is 1. In crane mechanism of the character described, the combination of a runway, a car or carriage arranged to travel on the runway, hoisting mechanism on the car or carriage, a bar or beam suspended from the hoisting mechanism, a ladle carrier rotatably connected to said bar" or beam, and a motive device for rotating the ladle carrier; substantially as described.

2 In crane mechanism of the character described, the combination with a movable car or carriage having a hoisting mechanism thereon, a structure suspended from said hoisting mechanism, a ladle carrier rotatably supported by said structure and having depending ladle engaging hooks, and a motor mounted on said structure for rotating the ladle carrier substantially as described. K

3. In crane mechanism of the character describeoL-a movable car or carriage, a structure suspended therefrom, a ladle carrier having an upwardly extending neck journale'd insaid structure, and a motor and gearing mounted on said structure for rotating the ladle carrier; substantially as described.

4. In cranemechanism of the character described, a movable car or carriage, hoisting 1 mechanism carrled thereby, a structure suscomprising a bar having depending hooked arms connected thereto, the hooks of said arms opening in opposite directions, and a motor and g'earin for rotating the ladle carrier; substantially as described.

5. In crane mechanism of the character described, a movable car or carriage having an operators cage or platform suspended therefrom, and also, having depending guides, hoisting mechanism on the car or carriage, a depending bar or beam suspended from the hoisting mechanism and engaging said guides, and a ladle carrier suspended from said bar or beam; substantially as described.

6. In crane mechanism of the character described, a movable car or carriage having an operators cage or platform, and also having depending guides, hoisting mechanism on said car or carriage, a bar or beam suspended from said hoisting mechanism and engaging the said dguides, a ladle car"- rier rotatably suspende or beam, and a motor and gearing mounted on the bar or beam for rotating the ladle carrier, and a stop mechanism arranged to be engaged by said bar or beam to limit its upward movement; substantially as described.

In testimony whereof, I have hereunto set,

HELEN BOWDEN, J J. BROWN.

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