US394420A - Apparatus for charging and drawing furnaces - Google Patents

Description

No Model.) 2 Sheets-Sheet 1. S. T. WELLMAN.

APPARATUS FOR CHARGING AND DRAWING FURNACES. No. 394,420. Patented Dec. 11, 1888.

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APPARATUS FOR CHARGING AND DRAWING FURNACES. No. 394,420. 1858.

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A TTOANE KS UNITED STATES PATENT OFFICE.

SAMUEL i. l/VELLMAN, OF CLEVELAND, OHIO.

APPARATUS FOR CHARGING AND DRAWING FURNACES.

SPECIFICATION forming part of Letters Patent No. 394,420, dated December 11, 1888.

Application tiled July 31, 1888- Serial No. 281,576. (No model.)

To all whom it may concern.-

Be it known that, I, SAMUEL 'l. WELLMAN, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Apparatus for Charging and Drawing Furnaces; and I do hereby declare the following to be a full, clear, and exact description ot the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

l\jly invention relates to improvements in apparatus for charging and drawing furnaces; and it consists in certain features of construction, and in combination of parts hereinafter described, and pointed out in the claims.

In a previous application for Letters Patent made byfme, similar apparatus for charging and drawing furnaces was shown and described.

My present invention is designed as an improvementon the same, the object being to simplify and reduce the initial cost thereof.

In the accompanying drawings, Figure 1 is a side elevation. 2 and 3 are respectively front and rear end elevations. Fig. 4 is a plan in detail of the tongs. Fig. 5 is a front end elevation of the tongs, showing an ingot in section between the jaws of the tongs.

A A are widely-separated tracks on which car B travels. The frame-work of this car consists in part of side pieces, 0, of preferably heavy channel-beamsset edgewise, as shown.

'Above is located a tilting frame, D, the same being made, preferably, of eye-beams connected rigidly at the ends thereof. From the rear end of frame D depend hangers D, and connectetl witlrtliese hangers are lateral shaft-s or axles d and d", on which axles are mounted, respectively, wheels (Z and IF, the former wheel traveling on the aforesaid channel-bars and the latter engaging the under side of. these channel-bars. These wheels embrace the channel-bars loosely, by reason of which frame D may be tilted in a vertical plane the limited distance required. The front end of frame D rests on wheels e, these wheels being mounted on cross-heads E of upright hydraulic ram E. By operating the ram the frame is tilted upward, the frame and plunger of the ram descending by gravity to their normal position when the ram is exhausted.

is a hydraulic cylinder or motor of considerable length. the piston-rod f of which connects with axle (I. ll operating motor F frame D is actuated endwisc. Frame D therefore performs the functions of a tilting frame and of a traveling frame in elevating and depressing the tongs and in moving the tongs endwise in charging and drawing furnaces. e

In my former device the traveling frame was mounted on the tilting frame, such construction necessitating two frames in place of the one frame now used.

The tongs are arranged substantially as described, to wit: The grappling levers G, constituting the tongs, are mounted on the forward end of the tilting frame and pivoted thereto at g. The rear section of these levers trends outward to form inclines, (see Fig. 4,) the diverging sections of these levers being embraced by plates H, and the latter being fionnected with piston-rod i of hydraulic Inotor I. Studs 71 and h are located substantially in the position shown in Fig. 4, respectively between and outside the levers, these studs extending from one plate H to the other and secured to each. With such arrangement of parts the forward movement of the piston of motor I causes the rear end of the tongs to separate, and con sequeutly causes the forward ends of the tongs to grasp the load.

The reverse movement of the motor causes the front ends of the tongs to separate and release the load, such load being. for instance, ingots K. The cables L, for moving car B along tracks A, are connected with frames B of the car, by means of which the cables are located overhead and out of the way Thelevers for operating the different motors are located at on, just in front of the operator, as is also the hand-cable, (not shown,) for operating the engines that actuate car B. The water-supply for the motors is furnished through hose N, the peculiar arrangement of hose and the niechanisiufor supporting the same being made the subject of a separate application for Letters Patent.

The waste-water from the different motors is discharged in common through pipe P. A large tube, R, is located lengthwise of the plant underneath the car, this tube having a slot, r, for rece' *ing the end of pipe P, or at least receiving the discharge of this pipe; by

which arrangement the'waste-vi'ater may be saved. v t

For light work the: motor might probably be Successfully operatedjby air, in which case .of course tube R could be dispensed with. \Vhat I claim is- 7 'Y 1. In apparatus for charging and drawing furnaces, the combination, with car having met-a1 side pieces adapted for ways, or tilting" frame pivotally connected with :and adapted to travel on such side pieces, a hydraulicra-m' for elevating such tilting frame, a hydraulic motor for. reciprocating endwise such tilting trauma-substantially asset forth. 2I 'In apparatus for charging and'drawing furnaces,'the combination, with car having Suitable walys,oftiltingfmme pivotally' oonnccted'witli and adapted to-t-ravcl on such ,ways, hydraulic rain located undersuch frame for tilting the ldtteriu a- Yeitical plane, such ram having acrowhead bearing wheels for the tilting frame to travel on, substantially as frame, and hydraulic'rmn or motors, respectively, for reciprocating or tilting-such frame,

hydraulic motor for opcning, and closing the as set'fort'h.

Iii testimony whereof I sign thispecification, in the presence of two \vitnossos, this 1st day of May-188$ J SAMUEL "l. WELLMhN.

Witnesses:

CHAS. H. Donna, ALBERT E. LYNCH.

of tongs mounted on .such tilting: frame, and

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