US437819A - Apparatus for drawing and charging blooms - Google Patents

Apparatus for drawing and charging blooms Download PDF

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US437819A
US437819A US437819DA US437819A US 437819 A US437819 A US 437819A US 437819D A US437819D A US 437819DA US 437819 A US437819 A US 437819A
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charging
shaft
bar
cylinder
trolley
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00Charging; Discharging; Manipulation of charge
    • F27D3/0024Charging; Discharging; Manipulation of charge of metallic workpieces

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  • UQnwassss m NO'IRIS PETERS 00., moron-mo wAsmmTw, n, c.
  • IIIIHIIIIIIIIII' 1 A m ww Patentd 0013.7, 1890.
  • JOSEPH MORGAN .13., OF JOHNSTOlVN, PENNSYLVANIA.
  • Finished bars of iron or steel are generally rolled or hammered from a bloom, billet, or pile. Previous to rolling, these blooms have to be heated in a furnace, and the furnaces in general use for this purpose are well known and need not be described.
  • bloom in its generic sense. It may be a bloom, a billet, a pile, or any form of material to be heated or handled when hot.
  • a charging peel or tool of iron shaped like a paddle or oar and provided with a cross-handle at its end is placed with its blade resting on the fore-plate of the furnace-door, the handle being held by one or more workmen.
  • the bloom is then placed upon it by other workmen, when bya united. effort the peel with bloom on it is pushed into the furnace, after which the peel is withdrawn and the operation is repeated. Drawing these blooms from the furnace is accomplished in an equally laborious manner by the use of tongs in the hands of the workmen.
  • This method has been modified and made more easy by suspending the charging-peel on a swinging crane, the drawing being done by the use of a tongs actuated by steam or other power, these tongs merely pulling the bloom from the furnace and allowing it to drop on a buggy under the door.
  • the object of my invention is to provide an apparatus for charging blooms into and d ra wing them from a heating-furnace in an economical, speedy,convenient, and non-laborious manner.
  • a general description of my charging and drawing machine is as follows:
  • the apparatus described below is for use in connection with a furnace having a horizontal bed.
  • Above the furnace-doors and parallel to the furnace front is an elevated track supported on posts and girders.
  • In front of the furnace is another track parallel to the first and similarly supported.
  • On these tracks is supported a traveling crane whose frame is made of girders.
  • This traveler has four wl1eels-t ⁇ *o on each track-one pair being driven in either direction bya pair of reversing-engines, these engines being carried on the traveler.
  • This traveler has on it a track at rightangles to the axis of the furnace and to the travelertrack.
  • This track on the traveler carries a trolley resting on four wheels and capable of motion backward or forward.
  • a sheave for wire rope On the shaft of the engine before mentioned is a sheave for wire rope, and at the opposite side of thetraveler is a similar sheave on a shaft parallel to the engine-shaft.
  • the sheave on the engine-shaft is thrown into or out of motion by a clutch.
  • a number of wire ropes run over these two sheaves, their ends being fastened to the trolley.
  • This trolley may thus be moved backward or forward on its track by the engine at the will of the operator controlling the reversing-lever of the engine and the clutch-lever.
  • This trolley may also be moved by a long pneumatic plunger working in a double-acting cylinder fixed at one end of the traveler, its motion being controlled by a valve with a convenient lever.
  • This trolley has a flat rectangular top with stiffening-ribs on its lower sides. Forminga part of and extending vertically downward from the bottom of this trolley-frame is a cylindrical tube with curved ribs uniting it to the top part of the trolley-frame, these ribs acting as stiffeners.
  • This cylindrical tube is bored to receive a vertical shaft. This shaft has on its upper end a collar to prevent it from moving downward. This collar takes its bearing against a suitable shoulder on the 25 from the end.
  • This vertical shaft extends above the frame and carries firmly attached a crank or rocker arm.
  • This crank is connected by a short connecting-rod with the piston of a double-acting pneumatic cylinder carried on top of the trolley.
  • This cylinder 1 call the turning-cylinder.
  • the motion of the piston is controlled by a suitable valve connected with a hand-lever.
  • the vertical 1o shaft is thus capable of partial revolution about its axis.
  • This casting has on one side an arm which is inclined downward, and at the opposite side it has a fiat face, against which is attached a double-acting pneumatic cylinder with a trunk.
  • This I call the lifting-cylinder. Pivoted at thebottom 0 piston of the lifting-cylinder will cause the end of the long arm of the charging-bar to describe a vertical arc, the direction of its motion being opposite to that of the piston, and its motion will be greater than that of 3 5 the piston, depending upon the relative length of its arms.
  • the casting at the lower end of the vertical shaft before mentioned has another vertical face at right angles to the one to which the lifting-cylinder is attached. Against this face is attached another vertical pneumatic cylinder with a trunk and pitman.
  • This cylinder I call the gripping-cylinder.
  • This pitman is connected with a short crank keyed to a 5 shaft called a gripping-shaft, which is held inbearings along the side of the chargingbar before mentioned.
  • This shaft extends the length of the bar and has at its far end a heavy crank, which crank forms the movable side of the jaw which grips the bloom.
  • Opposite to this movable jaw isasimilar stationary one attached to the end of the charging-bar, both jaws being fitted with removable bits or points of hard steel.
  • That part of the chargingbar which is subjected to the action of heat during operation is cooled by causing water to circulate through properly-formed ducts fashioned within it.
  • rollers Placed alongside of the outer posts carrying the traveler-track is a series of driven rollers which extend to the roll-train which is to roll the bloom. These rollers are carried inasuitable frame having boxes to receive the roller shafts and bearings, which hold a drivingshaft, which latter is fitted with a number of bevel gear-wheels, which mesh with similar wheels on the rollershafts. This shaft may be driven by a pair of reversing engines or in any suitable manner. Above the frame carrying the rollers and attached to it are two angle-bars so placed as to prevent the traveling bloom from leaving the rollers in its passage to the roll-train.
  • drawing and charging apparatus can grip a bloom on a buggy or car, lift it up, carry it to a position in front of anyone of the furnacedoors, swing it around, insert it in the furnace, and lower and leave it in a proper place on the furnace-bed. All this is done without manual labor other than that necessary to move the levers controlling the various motions.
  • the bloom is withdrawn by areversal of the above operation and is deposited on the rollers, which carry it quickly to the first pass of the rolls in the roll-train.
  • Figure 1 is a cross-section of a heating-furnace with side elevation of charging and drawing apparatus.
  • Fig. 2 is a part plan of traveler, showing traveler-frame, engine, engine-shaft traveler, wheels, and trolley-track.
  • Fig. 3 is an end elevation of traveler, showing traveler-frame, engine, engine-shaft, and travelerwheels. The clutches, wire rope, sheave, and bevel wheels are shown in vertical section.
  • Fig. 4 is a side elevation of one end of traveler, showing the engine and its connections.
  • Fig. 5 is a top plan of the trolley, showing trolley-frame, wheels, and device for turning vertical shaft. The turning-cylinder is shown in horizontal section.
  • Fig. 1 is a cross-section of a heating-furnace with side elevation of charging and drawing apparatus.
  • Fig. 2 is a part plan of traveler, showing traveler-frame, engine, engine-shaft traveler, wheels, and trolley-track.
  • Fig. 3 is
  • Fig. 6 is a vertical cross-section of the trolley taken at right angles to the axis of the turning-cylinder near its center, showing wheels, axle, and air-pipe in elevation.
  • Fig. 7 is a side elevation showing trolley in place on its track and showing lifting-cylinder, charging-bar, and furnace-door in vertical section.
  • Fig. 9 is a bottom plan of lifting and gripping cylinders and their attach ments, and showing section of vertical shaft and its lower roller-bearing.
  • Fig. 10 is a cross-section taken at right angles to vertical shaft through lifting and gripping cylinders, showing inclined arm and pivot for charging-bar in bottom plan.
  • Figs. 11 and 1.2 are elevations showing details of clutch, clutch-levers, and fork for throwing into and out of gear the parts which cause the traveler and trolley movements.
  • FIG. 13 is a back end elevation of grippingcylinder and its attachments.
  • Fig. It is an end elevation showing lower end of trunk and pitman of grippingcylinder and its attachments, and showing charging-bar in crosssection.
  • Fig. 15 shows lower end of trunk of the gripping-cylinder and the universal joint in vertical cross-section and charging-bar in end elevation.
  • Figs. 16 and 17 show crosssection of a bloom in the gripping-jaws of the machine.
  • Fig. 18 is a plan showing inner end of charging-bar with gripping-shaft and its bearing and crank-arm, together with details of water-cooling pipes.
  • A represents the cross-section of a horizontal heating-furnace with the door A.
  • O is a post for carrying the girder O, the corresponding girder 0 being carried by similar posts or by the furnace-frame.
  • I) is a traveler-frame having the wheels X X X X, which carry it and run on the track, which is supported by the girders O O.
  • This cngi ne has a driving-pinion J on its shaft which meshes with and drives the spur-wheel K, which spur-wheel. is attached to the shaft- L
  • This shaft L runs in bearings supported by the traveler D and communicates motion to the traveler-wheels X X by means of the clutch U U and the bevel-gears V V V V, the last bevel-wheel being attached to the axle ⁇ V of the wheels X X.
  • c is a connecting'rod for moving the rockerarm 0, which moves the clutch U.
  • the engines E are handled by the lever (7, (shown in Figs. and 4,) and by a reversing lever in the usual way. This engine E thus supplies power to move the traveler D backward or forward on its track, at the will of the operator.
  • This trolley I is a trolley-frame having the whcclsff f"f', which run on the rails Z Z, which rails are supported by that part of the traveler-frame marked Y in Fig. 2.
  • This trolley I has a flat top (shown in plans in Fig. 5) and a hollow cylinder projecting vertically downward therefrom, as shown in elevation and section in Figs. 7 and 8.
  • This cylinder is bored out to receive the vertical shaft k to the upper end of which is fastened the crank j.
  • This vertical shaft has a plain bearing near its top and a roller-bearing near its bottom in the cylindrical part of the trolleyframe, as shown in Figs. 7, S, and 9.
  • a doubleacting pneumatic cylinder 71 On the top of the trolley-table is a doubleacting pneumatic cylinder 71 having a piston h, piston-rod h', and valve 1.
  • m and m are hand-levers attached to the shaft 771,", at the upper end of which is the rock er-arm m, which moves the valve Z of the turning-cylinder h. Attached to thepiston-rod h' is the head i, fastened by the key 1''.
  • the head t" is connected with one end of the short connecting-rod i, which latter is connected by a crank-pin to the crank J.
  • the engineshaft L carries the wire-rope sheave K, which runs freely 011 the shaft until thrown into gear by the clutch T T, which is moved by the lever 1), shaft 1), rod 12', and lever with fork b.
  • the vertical shaft k has firmly fastened to its lower end the steel casting 7c.
  • the body of this casting is square in form, having two vertical plane faces at right angles. against these faces are attached the lifting-cylinder G and the gripping-cylinder F.
  • On the side of the casting opposite the lifting-cylinder is a short heave-arm inclined downward.
  • the lower part of this arm has a hole, into which fits the pin 70 which holds the forging k. This latter is attached to the charging-bar M.
  • the bolt 7c" and the forging k together form a joint about which the bar M may make a partial revolution in a vertical plane.
  • the lifting-cylinder G has a piston o and a trunk 0. In this trunk works the pitman 0", which grasps at its lower end the pin 0'',
  • This lifting-cylinder is double-acting, and has a valve which can be moved by a motion of the lever r, causing the piston to move up or down at the will of the operator.
  • F is a double-acting cylinder called the gripping-cylinder. It has a piston q, with a trunk, within which works the pitman g which is attached to the rocker-arm g, by means of the universal joint 1;.
  • This gripping-cylinder has a valve which is moved by the lever r, and is double-acting.
  • the gripping-bar M is rectangular in section, and has at its end a casting or forging H firmly bolted to it.
  • a shaft N Along this bar M, parallel to it and supported by it, is a shaft N, to the inner end of which is firmly attached the rocker-arm q, before referred to.
  • the inner end of this shaft N is held in the bearing 25, which is attached to the bar M, while the outer end is carried in bearings in the part H.
  • the charging-bar M is bored out to receive the cooling-pipe a, while the shaft N is similarly fitted with the cooling-pipe 111. These pipes supply water for circulation in the interior of bar M and the shaft N, in order to prevent these parts from becoming overheated in the furnaces.
  • the various cylinders on the machine are supplied with steam or compressed air by the main pipe R,with branches S and others having suitable swing-joints to allow for the motion of the different parts of the apparatus.
  • ThepipesS S are supported by arod clamped fast to the upper one, the top of the rod having a'wheel which moves on and is supported by a light overhead circular track.
  • for the cooling-pipes u and u is conveyed to them by a hose from a stationary hydrant near the post 0. (Shown on Fig. 1.)
  • This hose is supported overhead at various points along its length by U-shaped carriers, which have wheels running along a track at the outside of the girder 0.
  • O is a pair of reversing-engines with a driving power on the engine-shaft.
  • This pinion meshes with and drives the spur-wheel P, which is attached to a long shaft which has on it a number of bevel-wheels.
  • Each of the bevel-wheels on this long shaft drives a similar bevel-wheel attached to the shaft of a roller held in a long frame.
  • One of these rollers is shown in end elevation at Q.
  • This line of rollers extends from the heating-furnaces to the feedtable of a roll-train, or if the driven rollers are higher than the feed-table there may be an inclined way having plain rollers connect,-
  • my bloom charging and drawing machine The operation of my bloom charging and drawing machine is as follows: A car of blooms is brought into position in front of the furnace, as shown in Fig. 1. The gripping cnd of the charging-bar is raised and the traveler is caused to move so as to bring the gripping-jaws directly over a bloom. The open jaws are .now made to descend and grasp a bloom, which is then lifted clear from the car. The traveler is then made to move, if necessary, so as to bring the bloom in front of the furnacedoor, and the charging-bar is swung at the same time on its vertical shaft in such a way as to bringit at right angles to the axes of thefurnace.
  • the trolley is then made to move forward, carrying with it the charging-bar and the bloom until the latter is over its proper position on the furnace-bed.
  • the jaw end of the charging-bar is then lowered, and as soon as the bloom touches the furnace-bottom the gripping-jaws are opened, thus depositing the bloom in place.
  • the jaw end of the bar may then be raised and the bar withdrawn, when it is ready for another operation.
  • a charging-bar having at or near one end a gripping-jaw, with a shaft for moving said jaw, and a pneumatic cylinder or other device for causing a partial revolution of said shaft in either direction for the purpose of opening or closing said jaw, substantially as set forth.
  • a charging-bar having a gripping-jaw, a shaft for moving said jaw, and a device for moving said shaft, all in such a manner as to take hold of or release a bloom, billet, pile, or other form of material, with a horizontal pivot for said bar and a pneumatic cylinder or other device for moving said charging-bar up or down about said pivot in the manner of a lever, substantially as set forth.
  • a charging-bar having a gripping-jaw
  • a pneumatic cylinder or other device for causing the bar to move about said pivot all in such a manner as to enable the bar to be lowered upon and grasp by its jaws and lift a bloom, billet, pile, or other form of material, with a vertical shaft to the lower end of which is fastened a head which carries the parts before mentioned in suchaway that the revolution of the shaft causes a revolution of the charging-bar and its attachments, substantially as set forth.
  • a vertical shaft carrying a charging-bar having a gripping-jaw a shaft for moving said jaw, a pneumatic cylinder or other device for partially revolving said shaft, a pivot on the charging-bar, and a pneumatic cylinderor other device for causing the charging-bar to move about its pivot all in such a manner as to enable the bar to grasp by its jaws, lift, and swing around with a bloom, billet, pile, or other form of material, with a trolley which is moved forward or backward on its track by a wire rope running over sheaves, or by any other suitable device, carrying with it in its motion the vertical shaft, charging-bar and attachments before mentioned, substantially as set forth.
  • the combination with a traveling crane, of a trolley running on a track on said traveling crane, the trolley having a vertical revoluble shaft the lower end of which carries acharging-bar movable up and down on a horizontal pivot in the manner of a lever, and having at its end a gripping-jaw, all constructed in such a manner that a bloom may be grasped by the jaws, lifted by the bar, swung by the vertical shaft, carried backward or forward by the trolley and carried in either direction at right angles to the line of motion of the trolley by the traveling crane, substantially as set forth.
  • a charging-bar having at or near one end a gripping-jaw, with a shaft for moving said jaw, said shaft and bar being formed with ducts within them to allow water or other coolin g fluid to circulate through them for the purpose of preventing the heat to which they are exposed from interfering with their proper condition for working, substantially as set forth.
  • a charging-bar moving upward or downward in the manner of a lever and revolved about a vertical axis by a crank and shaft, the operating-power being pneumatic cylinders or other suitable devices, and moved backward or forward from and to a furnace-bed by a trolley mounted on a traveler or other device for conveying it along the front of afurnace, this charging-bar having at its end a gripping-jaw, the movable side of which is actuated by the partial revolution of a shaft operated by a pneumatic cylinder or other device, the jaw being formed in asuitable manner for grasping the sides of a bloom, billet, pile, or other form of material to be handled, substantially as set forth.
  • the combination of a traveling crane with the trolley I, the shaft is, the bar M, the pivot formed by 70 7c 10, the cylinder G, the cylinder F, the shaft N, and the gripping-jaws H H, substantially as set fort] 17.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Description

(No Model.) 10 Sheets-Sheet 1. J MORGAN, J1 APPARATUS FOR DRAWING AND CHARGING BLOOMS. No. 437,819.
Patented Oct. 7, 1890.
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10 Sheets-Sheet 2.
(No Model.)
J. MORGAN. Jr. APPARATUS FOR DRAWING AND GHARGING BLOOMS.
No. 437,819. Patented Oct. '7, 1890.
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10 Sheets'Sheet 3. J. MORGAN, J1.
APPARATUS FOR DRAWING AND CHARGING BLOOMS. No. 437,819.
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J. MORGAN, Jr. APPARATUS FOR DRAWING AND CHARGING BLOOMS. No. 437,819. Patented Oct. 7, 1890.
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(No Model.) 10 Sheets-Sheet 5.
J. MORGAN, Jr. APPARATUS FOR DRAWING AND CHARGING BLOOMS. No. 437,819. Patented Oct. '7, 1890.
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UQnwassss m: NO'IRIS PETERS 00., moron-mo wAsmmTw, n, c.
(No Model.) 10 Sheets-Sheet 6.
J.MORGAN, Jr.
APPARATUS FOR DRAWING AND CHARGING BLOOMS. No. 437,819. Patented Oct. '7, 1890.
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IIIIHIIIIIIIIIIIII' 1 A m ww Patentd 0013.7, 1890.
AAEWM M J. MORGAN, Jr. APPARATUS FOR DRAWING AND CHARGING BLOOMS.
(No Model.)
. 10 Sheets-Sheet 8.
(No Model.)
J. MORGAN. Jr. APPARATUS FOR DRAWING AND CHARGING BLOOMS.
No. 437,819. Patented Oct. '7, l890.-
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(No Model.) 10 Sheets-Sheet 9. J. MORGAN, J1.
APPARATUS FOR DRAWING AND-CHARGING BLOOMS.
No. 437,819. Patented Oct. '7, 1890.
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(No Model.) 10 Sheets-Sheet 10.
J. MORGAN, Jr. APPARATUS FOR DRAWING AND CHARGING BLOOMS.
No. 437,819. Patented 0m. 7; 1890.
NITED STATES PATENT OFFICE.
JOSEPH MORGAN, .13., OF JOHNSTOlVN, PENNSYLVANIA.
APPARATUS FOR DRAWING AND CHARGING BLOOMS.
SPECIFICATION forming part of Letters-Patent No. 437,819, dated October '7, 1890.
(No model.)
To all whom it may concern-.-
Be it known that I, JOSEPH MORGAN, Jr., a citizen of the United States, residing at J ohnstown, in the county of Oambria and State of Pennsylvania, have invented certain new and useful Improvements in Apparatus for Drawing and Charging Blooms; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
Finished bars of iron or steel are generally rolled or hammered from a bloom, billet, or pile. Previous to rolling, these blooms have to be heated in a furnace, and the furnaces in general use for this purpose are well known and need not be described.
Various methods have been used for charging blooms into and for drawing them from the furnace. I use the term bloom in its generic sense. It may be a bloom, a billet, a pile, or any form of material to be heated or handled when hot.
One of the old methods of charging and drawing is as follows: A charging peel or tool of iron shaped like a paddle or oar and provided with a cross-handle at its end is placed with its blade resting on the fore-plate of the furnace-door, the handle being held by one or more workmen. The bloom is then placed upon it by other workmen, when bya united. effort the peel with bloom on it is pushed into the furnace, after which the peel is withdrawn and the operation is repeated. Drawing these blooms from the furnace is accomplished in an equally laborious manner by the use of tongs in the hands of the workmen. This method has been modified and made more easy by suspending the charging-peel on a swinging crane, the drawing being done by the use of a tongs actuated by steam or other power, these tongs merely pulling the bloom from the furnace and allowing it to drop on a buggy under the door.
Various other devices have been used for charging and drawing blooms; but most of them are cumbersome, liable to accident, or laborious in operation.
The object of my invention is to provide an apparatus for charging blooms into and d ra wing them from a heating-furnace in an economical, speedy,convenient, and non-laborious manner.
A general description of my charging and drawing machine is as follows: The apparatus described below is for use in connection with a furnace having a horizontal bed. Above the furnace-doors and parallel to the furnace front is an elevated track supported on posts and girders. In front of the furnace is another track parallel to the first and similarly supported. On these tracks is supported a traveling crane whose frame is made of girders. This traveler has four wl1eels-t\\*o on each track-one pair being driven in either direction bya pair of reversing-engines, these engines being carried on the traveler. This traveler has on it a track at rightangles to the axis of the furnace and to the travelertrack. This track on the traveler carries a trolley resting on four wheels and capable of motion backward or forward.
On the shaft of the engine before mentioned is a sheave for wire rope, and at the opposite side of thetraveler is a similar sheave on a shaft parallel to the engine-shaft. The sheave on the engine-shaft is thrown into or out of motion by a clutch. A number of wire ropes run over these two sheaves, their ends being fastened to the trolley. This trolley may thus be moved backward or forward on its track by the engine at the will of the operator controlling the reversing-lever of the engine and the clutch-lever. This trolley may also be moved by a long pneumatic plunger working in a double-acting cylinder fixed at one end of the traveler, its motion being controlled by a valve with a convenient lever. In practice, the use of this last device is found to be better than the use of the wire rope for moving the trolley. This trolley has a flat rectangular top with stiffening-ribs on its lower sides. Forminga part of and extending vertically downward from the bottom of this trolley-frame is a cylindrical tube with curved ribs uniting it to the top part of the trolley-frame, these ribs acting as stiffeners. This cylindrical tube is bored to receive a vertical shaft. This shaft has on its upper end a collar to prevent it from moving downward. This collar takes its bearing against a suitable shoulder on the 25 from the end.
trolley-frame. This vertical shaft extends above the frame and carries firmly attached a crank or rocker arm. This crank is connected by a short connecting-rod with the piston of a double-acting pneumatic cylinder carried on top of the trolley. This cylinder 1 call the turning-cylinder. The motion of the piston is controlled by a suitable valve connected with a hand-lever. The vertical 1o shaft is thus capable of partial revolution about its axis.
At the lower end of the vertical shaft above referred to is a steel casting or forgin g bored out to receive the end of the shaft, to which it is firmly attached. This casting has on one side an arm which is inclined downward, and at the opposite side it has a fiat face, against which is attached a double-acting pneumatic cylinder with a trunk. This I call the lifting-cylinder. Pivoted at thebottom 0 piston of the lifting-cylinder will cause the end of the long arm of the charging-bar to describe a vertical arc, the direction of its motion being opposite to that of the piston, and its motion will be greater than that of 3 5 the piston, depending upon the relative length of its arms.
The casting at the lower end of the vertical shaft before mentioned has another vertical face at right angles to the one to which the lifting-cylinder is attached. Against this face is attached another vertical pneumatic cylinder with a trunk and pitman. This cylinder I call the gripping-cylinder. This pitman is connected with a short crank keyed to a 5 shaft called a gripping-shaft, which is held inbearings along the side of the chargingbar before mentioned. This shaft extends the length of the bar and has at its far end a heavy crank, which crank forms the movable side of the jaw which grips the bloom. Opposite to this movable jaw isasimilar stationary one attached to the end of the charging-bar, both jaws being fitted with removable bits or points of hard steel. Theinside lines of these jaws when closed-form an open square with the opening downward, and having on its sides near the bottom two projecting points. It will thus be seen that the motion of the piston of the gripping-cylinder may be made to cause the gripping-jaws to open or close, as
may be desired. That part of the chargingbar which is subjected to the action of heat during operation is cooled by causing water to circulate through properly-formed ducts fashioned within it.
In connection with this charging and drawing machme I use a track running on the working-level in front of the furnace, and
upon which run the cars which deliver blooms to be charged.
Placed alongside of the outer posts carrying the traveler-track is a series of driven rollers which extend to the roll-train which is to roll the bloom. These rollers are carried inasuitable frame having boxes to receive the roller shafts and bearings, which hold a drivingshaft, which latter is fitted with a number of bevel gear-wheels, which mesh with similar wheels on the rollershafts. This shaft may be driven bya pair of reversing engines or in any suitable manner. Above the frame carrying the rollers and attached to it are two angle-bars so placed as to prevent the traveling bloom from leaving the rollers in its passage to the roll-train. These an gle-bars serve also as a track upon which runs abosh on wheels, the bosh being filled with water with which to cool off the end of the charging-bar. drawing and charging apparatus can grip a bloom on a buggy or car, lift it up, carry it to a position in front of anyone of the furnacedoors, swing it around, insert it in the furnace, and lower and leave it in a proper place on the furnace-bed. All this is done without manual labor other than that necessary to move the levers controlling the various motions. The bloom is withdrawn by areversal of the above operation and is deposited on the rollers, which carry it quickly to the first pass of the rolls in the roll-train.
Having given this general description 0 my invention,I will now, to make my invention more clear, refer to the annexed ten sheets of drawings, which form a part of this specification, and in which like figures refer to like parts.
Figure 1 is a cross-section of a heating-furnace with side elevation of charging and drawing apparatus. Fig. 2 is a part plan of traveler, showing traveler-frame, engine, engine-shaft traveler, wheels, and trolley-track. Fig. 3 is an end elevation of traveler, showing traveler-frame, engine, engine-shaft, and travelerwheels. The clutches, wire rope, sheave, and bevel wheels are shown in vertical section. Fig. 4 is a side elevation of one end of traveler, showing the engine and its connections. Fig. 5 is a top plan of the trolley, showing trolley-frame, wheels, and device for turning vertical shaft. The turning-cylinder is shown in horizontal section. Fig. 6 is a vertical cross-section of the trolley taken at right angles to the axis of the turning-cylinder near its center, showing wheels, axle, and air-pipe in elevation. Fig. 7 is a side elevation showing trolley in place on its track and showing lifting-cylinder, charging-bar, and furnace-door in vertical section. The charg- This Ice
shown at the bottom of the sheet.
a vertical section of the trolley, taken at right angles to the direction of its 1notion,showing traveler-frame, trolley-track, and grippingcylinder in vertical section, and vertical shaft, trolley-wheels, and air pipes and joints in elevation. Fig. 9 is a bottom plan of lifting and gripping cylinders and their attach ments, and showing section of vertical shaft and its lower roller-bearing. Fig. 10 is a cross-section taken at right angles to vertical shaft through lifting and gripping cylinders, showing inclined arm and pivot for charging-bar in bottom plan. Figs. 11 and 1.2 are elevations showing details of clutch, clutch-levers, and fork for throwing into and out of gear the parts which cause the traveler and trolley movements. Fig. 13is a back end elevation of grippingcylinder and its attachments. Fig. It is an end elevation showing lower end of trunk and pitman of grippingcylinder and its attachments, and showing charging-bar in crosssection. Fig. 15 shows lower end of trunk of the gripping-cylinder and the universal joint in vertical cross-section and charging-bar in end elevation. Figs. 16 and 17 show crosssection of a bloom in the gripping-jaws of the machine. Fig. 18 is a plan showing inner end of charging-bar with gripping-shaft and its bearing and crank-arm, together with details of water-cooling pipes.
In the different figures, A represents the cross-section of a horizontal heating-furnace with the door A.
B is a bloom to be charged into or being drawn from the furnace A through the doorA'. ct is the charging-floor of the furnace A.
O is a post for carrying the girder O, the corresponding girder 0 being carried by similar posts or by the furnace-frame.
I) is a traveler-frame having the wheels X X X X, which carry it and run on the track, which is supported by the girders O O.
E is a pair of reversing-engines carried on the traveler D. This cngi ne has a driving-pinion J on its shaft which meshes with and drives the spur-wheel K, which spur-wheel. is attached to the shaft- L This shaft L runs in bearings supported by the traveler D and communicates motion to the traveler-wheels X X by means of the clutch U U and the bevel-gears V V V V, the last bevel-wheel being attached to the axle \V of the wheels X X.
c is a connecting'rod for moving the rockerarm 0, which moves the clutch U.
The engines E are handled by the lever (7, (shown in Figs. and 4,) and by a reversing lever in the usual way. This engine E thus supplies power to move the traveler D backward or forward on its track, at the will of the operator.
I is a trolley-frame having the whcclsff f"f', which run on the rails Z Z, which rails are supported by that part of the traveler-frame marked Y in Fig. 2. This trolley I has a flat top (shown in plans in Fig. 5) and a hollow cylinder projecting vertically downward therefrom, as shown in elevation and section in Figs. 7 and 8. This cylinder is bored out to receive the vertical shaft k to the upper end of which is fastened the crank j. This vertical shaft has a plain bearing near its top and a roller-bearing near its bottom in the cylindrical part of the trolleyframe, as shown in Figs. 7, S, and 9.
On the top of the trolley-table is a doubleacting pneumatic cylinder 71 having a piston h, piston-rod h', and valve 1.
m and m are hand-levers attached to the shaft 771,", at the upper end of which is the rock er-arm m, which moves the valve Z of the turning-cylinder h. Attached to thepiston-rod h' is the head i, fastened by the key 1''. The
outer end of the piston-rod h works in the 7 bearing 1'.
The head t" is connected with one end of the short connecting-rod i, which latter is connected by a crank-pin to the crank J. Thus a motion backward or forward of the piston It will cause a partial revolution of the crank J and the shaftk attached to it.
As shown in Figs. 1, 2, 3, and 4c, the engineshaft L carries the wire-rope sheave K, which runs freely 011 the shaft until thrown into gear by the clutch T T, which is moved by the lever 1), shaft 1), rod 12', and lever with fork b.
As shown in Fig. 1, there is on the opposite side of the traveler another wire-rope sheave K in line with the sheave K. Over these two sheaves passes a number of wire ropes, indicated 011 the drawings by a broken line. The ends of these wire ropes are fastened to the trolley-frame I by eye-bolts on opposite sides of the frame. It will thus be seen that the revolution of the sheave K will cause the trolley to move on its track in either direction at the will of the operator in charge of the clutch-lever b and the engine-levers.
I do not limit myself to the use of the arrangement of wire ropes and sheaves for moving the trolley, as it may be moved by the action of a pneumatic piston-rod havinga piston moving in a double-acting cylinder attached to the traveler-frame, the motion of this piston being controlled by a convenient lever connected with the valve of the cylinder. The manner in which this can be done may be readily seen by a skilled mechanic.
The vertical shaft k has firmly fastened to its lower end the steel casting 7c. The body of this casting is square in form, having two vertical plane faces at right angles. Against these faces are attached the lifting-cylinder G and the gripping-cylinder F. On the side of the casting opposite the lifting-cylinder is a short heave-arm inclined downward. The lower part of this arm has a hole, into which fits the pin 70 which holds the forging k. This latter is attached to the charging-bar M. The bolt 7c" and the forging k together form a joint about which the bar M may make a partial revolution in a vertical plane.
The lifting-cylinder G has a piston o and a trunk 0. In this trunk works the pitman 0", which grasps at its lower end the pin 0'',
which pin is attached to theend of the charging-bar M, by means of the forging p. This lifting-cylinder is double-acting, and has a valve which can be moved by a motion of the lever r, causing the piston to move up or down at the will of the operator.
F is a double-acting cylinder called the gripping-cylinder. It has a piston q, with a trunk, within which works the pitman g which is attached to the rocker-arm g, by means of the universal joint 1;. This gripping-cylinder has a valve which is moved by the lever r, and is double-acting.
The gripping-bar M is rectangular in section, and has at its end a casting or forging H firmly bolted to it. Along this bar M, parallel to it and supported by it, is a shaft N, to the inner end of which is firmly attached the rocker-arm q, before referred to. The inner end of this shaft N is held in the bearing 25, which is attached to the bar M, while the outer end is carried in bearings in the part H. Firmly attached to the outer end of the shaft N, opposite to the stationaryjaw H, is the movable jaw H. These jaws have removable bits or points marked 8 s.
It will be seen that an upward motion of the piston q of the gripping-cylinder F will open the jaw formed by H and H, while a downward motion will close the jaw.
The charging-bar M is bored out to receive the cooling-pipe a, while the shaft N is similarly fitted with the cooling-pipe 111. These pipes supply water for circulation in the interior of bar M and the shaft N, in order to prevent these parts from becoming overheated in the furnaces.
The various cylinders on the machine are supplied with steam or compressed air by the main pipe R,with branches S and others having suitable swing-joints to allow for the motion of the different parts of the apparatus.
ThepipesS S are supported by arod clamped fast to the upper one, the top of the rod having a'wheel which moves on and is supported by a light overhead circular track. for the cooling-pipes u and u is conveyed to them by a hose from a stationary hydrant near the post 0. (Shown on Fig. 1.) This hose is supported overhead at various points along its length by U-shaped carriers, which have wheels running along a track at the outside of the girder 0.
Referring now to Fig. 1, O is a pair of reversing-engines with a driving power on the engine-shaft. This pinion meshes with and drives the spur-wheel P, which is attached to a long shaft which has on it a number of bevel-wheels. Each of the bevel-wheels on this long shaft drives a similar bevel-wheel attached to the shaft of a roller held in a long frame. One of these rollers is shown in end elevation at Q. This line of rollers extends from the heating-furnaces to the feedtable of a roll-train, or if the driven rollers are higher than the feed-table there may be an inclined way having plain rollers connect,-
Water ing with the driven rollers at its top andwith the feed-table of the roll-train at its bottom. On top of the long frame carrying the driven 7o rollers are two angles 0:00, which serve as guides to keep the bloom in place while being transported on the rollers to the roll-train. These angles also serve as a track upon which runs a water-bosh on wheels. This bosh w is used to cool off the heated end of the charging-bar M during the course of operations.
The operation of my bloom charging and drawing machine is as follows: A car of blooms is brought into position in front of the furnace, as shown in Fig. 1. The gripping cnd of the charging-bar is raised and the traveler is caused to move so as to bring the gripping-jaws directly over a bloom. The open jaws are .now made to descend and grasp a bloom, which is then lifted clear from the car. The traveler is then made to move, if necessary, so as to bring the bloom in front of the furnacedoor, and the charging-bar is swung at the same time on its vertical shaft in such a way as to bringit at right angles to the axes of thefurnace. The trolley is then made to move forward, carrying with it the charging-bar and the bloom until the latter is over its proper position on the furnace-bed. The jaw end of the charging-bar is then lowered, and as soon as the bloom touches the furnace-bottom the gripping-jaws are opened, thus depositing the bloom in place. The jaw end of the bar may then be raised and the bar withdrawn, when it is ready for another operation. W
The process of drawing is the reverse of the above, with the exception that after being withdrawn from the furnace the bloom is swung around in a horizontal direction and deposited on the carrying-rollers Q, which convey it tothe proper place for subsequent operations.
What I claim as of my invention, and desire to secure by Letters Patent, is-
1. In a charging and drawing machine, the combination of a charging-bar having at or near one end a gripping-jaw, with a shaft for moving said jaw, and a pneumatic cylinder or other device for causing a partial revolution of said shaft in either direction for the purpose of opening or closing said jaw, substantially as set forth.
2. In a charging and drawing machine, the combination of a charging-bar having a gripping-jaw, a shaft for moving said jaw, and a device for moving said shaft, all in such a manner as to take hold of or release a bloom, billet, pile, or other form of material, with a horizontal pivot for said bar and a pneumatic cylinder or other device for moving said charging-bar up or down about said pivot in the manner of a lever, substantially as set forth.
3. In a charging and drawing machine, the combination of a charging-bar having a gripping-jaw, a shaft operated by suitable means for moving said jaw,'a pivot on the charging- IIO bar, and a pneumatic cylinder or other device for causing the bar to move about said pivot, all in such a manner as to enable the bar to be lowered upon and grasp by its jaws and lift a bloom, billet, pile, or other form of material, with a vertical shaft to the lower end of which is fastened a head which carries the parts before mentioned in suchaway that the revolution of the shaft causes a revolution of the charging-bar and its attachments, substantially as set forth.
4. In a charging and drawing machine, the combination of a vertical shaft carrying a charging-bar having a gripping-jaw, a shaft for moving said jaw, a pneumatic cylinder or other device for partially revolving said shaft, a pivot on the charging-bar, and a pneumatic cylinderor other device for causing the charging-bar to move about its pivot all in such a manner as to enable the bar to grasp by its jaws, lift, and swing around with a bloom, billet, pile, or other form of material, with a trolley which is moved forward or backward on its track by a wire rope running over sheaves, or by any other suitable device, carrying with it in its motion the vertical shaft, charging-bar and attachments before mentioned, substantially as set forth.
5. In a charging and drawing machine, the combination,with a traveling crane, of a trolley running on a track on said traveling crane, the trolley having a vertical revoluble shaft the lower end of which carries acharging-bar movable up and down on a horizontal pivot in the manner of a lever, and having at its end a gripping-jaw, all constructed in such a manner that a bloom may be grasped by the jaws, lifted by the bar, swung by the vertical shaft, carried backward or forward by the trolley and carried in either direction at right angles to the line of motion of the trolley by the traveling crane, substantially as set forth.
(3. The combination, with a heating-furnace, of a charging and drawing machine having a gripping-jaw on a charging-bar, a shaft for moving said jaw, a pneumatic cylinder or other device for moving said shaft, the charging-bar having a pivot about which it can be revolved in the manner of a lever bya pneumatic cylinder or other device, and being attached to a vertical shaft, this shaft being revolved by a pneumatic cylinder or other device and carried by a trolley, which is moved in a direction to or from a furnace-bed by a wire rope running over sheaves or by other suitable device, and is carried on a traveling crane along the front of a heating-furnace in either direction by a pair of reversing-engines, or by any other suitable means, substantially as set forth.
7. The combination, of a heating furnace, with a charging and drawing machine having a traveler carrying a trolley provided with a vertical revoluble shaft, having on its bottom a head carrying a charging-bar supplied with gripping, raising, and lowering devices so constructed as to be capable of charging a bloom into the furnace and withdrawing same, and
a set of driven rollers to convey the heated bloom to the rolls, or other devices for further manipulating it, substantially as set forth.
8. The combination of a charging-bar having a grippin g-j aw for charging into and drawing from a furnace a bloom, billet, pile, or other form of material, with a water-bosh having wheels running on a convenient and suitable track, said bosh so constructed as to contain water for cooling the end of said charging-bar, substantially as set forth.
9. In a charging and drawing machine, the combination of a charging-bar having at or near one end a gripping-jaw, with a shaft for moving said jaw, said shaft and bar being formed with ducts within them to allow water or other coolin g fluid to circulate through them for the purpose of preventing the heat to which they are exposed from interfering with their proper condition for working, substantially as set forth. a
10. In a charging and drawing machine, a charging-bar moving upward or downward in the manner of a lever and revolved about a vertical axis by a crank and shaft, the operating-power being pneumatic cylinders or other suitable devices, and moved backward or forward from and to a furnace-bed by a trolley mounted on a traveler or other device for conveying it along the front of afurnace, this charging-bar having at its end a gripping-jaw, the movable side of which is actuated by the partial revolution of a shaft operated by a pneumatic cylinder or other device, the jaw being formed in asuitable manner for grasping the sides of a bloom, billet, pile, or other form of material to be handled, substantially as set forth.
ll. In a charging and drawing machine, the combination of the charging-bar M, the stationary jaw H, the movable jaw H, and the shaft N for moving the jaw II, all so constructed as to grasp or release a bloom, billet, pile, or other form of material, substantially as set forth.
12. In a charging and drawing machine, the combination of the bar M, the jaws H H, the shaft'N, the crankq", and the cylinder F, having a piston and a pitman connected with crank q in such a manner as to cause by their movementin either direction a corresponding movement of the shaft N with the effect of opening or closing the jaws II II, substantially as set forth.
13. In a charging and drawing machine, the combination of the charging-bar M, the jaws H II, the shaft N for moving the jaws, the cylinder F and its connections for moving the shaft N, the pivot formed by the parts 7;, 71: k', about which the bar M may move, and the cylinder G and its connections for moving the bar M up or down in the manner of a le ver, substantially as set forth.
14:. In a charging and drawing machine, the combination of the charging-bar M, the jaws H 11, the shaft N, the cylinder F, the pivot formed by k is 10'', the cylinder G, the vertical shaft is, the crank j, and the cylinder h for moving the shaft 70 by means of itsconnecigons with the crank j, substantially as set fort 15. In a charging and drawing machine, the combination of the trolleyI, having the sheaves K K, over which run a number of wire ropes connected at their ends with the trolley for the purpose of moving it, the vertical shaft k, having the crank j, which is connected with the cylinder h, which by means of its connections with the crank j moves the shaft 70 and its attachments, the charging-bar M, the head It, the pin it, the bearing 10, the cylinder G, the piston 0, connected to the bar M by the rod 0, the cylinder F, the piston g, the rod q, the joint 1), the crank q, the shaft N, and the gripping-jaws H H, all so construct-ed as to grasp, lift, or lower, swing with, and move backward or forward with a bloon1,billet, bar, or other form of material, substantially as set forth.
16. In a charging and drawing machine, the combination of a traveling crane with the trolley I, the shaft is, the bar M, the pivot formed by 70 7c 10, the cylinder G, the cylinder F, the shaft N, and the gripping-jaws H H, substantially as set fort] 17. The combination, with the furnace A, of a traveling crane, the trolley I, the shaft 7c, the bar M, the pivot formed by la la" 10, the
shaft N, and the gripping-j aWs H H, substan-' JOSEPH MORGAN, JR.
Witnesses:
E. J. BURKHART, GEO. E. THAOKRAY.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2679938A (en) * 1950-07-14 1954-06-01 Cecil C Peck Company Loading crane

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2679938A (en) * 1950-07-14 1954-06-01 Cecil C Peck Company Loading crane

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