US508476A - Crane - Google Patents

Description

5 Sheets-Sheet 1. J. HORTON.

CRANE No. 508.476, Y Patenfedflvov. 14, 1893.

(NO Model.) 5 Sheets-Sheet 2. J. HGRTON.

CRANE. No. 508,476. Patented NOV. 14, 18,93.v

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f v 5 Sheet-Sheet 3. J.v HORTON.

CRANE (No Model.)

Patented Nov. 14, 1893.

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v5 sheets-sheet 4. J. HORTON.

l CRANE.

Patented Nov. 14, 1893.

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(No Model.) 5 Smets-sheet 5.'

J. HORTON.

CRANE -PatenteN. 14, 1893.

UNITED STATES PATENT OFETCE.

JAMES HORTON, OF CHICAGO, ILLINOIS.

CRANE.

SPECIFICATION forming part of Letters vPat-ent No, 508,476, dated November 14, 1893. Application led January 10, 1893. Serial No.457,889. (No model.)

' .To all whom/.it may con-cern.-

Beit known that I, JAMES4 HORTON, a citi- 'zen of the United- States, residing at Chicago,

' county of Cook, State of- Illinois, have invented certain new and useful Improvements in Cranes, of which I do declare the following to be a full, clear, and exact description, reference being had to the accompanying drawings, forming part ot' this specilication.

My present invention has relation more particularly to that class of cranes known as hydraulic cranes and in the accompanying, d rawings my invention is Yshown as embodying a hydraulic crane especially designed for the introduction into and Awithdrawal from reheating furnaces of rails or other articles to be heated. I wish it understood however, that while I have illustrated what I regard as the preferred formof my invention, and its use in connection with a class of work to which it is especially well adapted,'the invention is not restricted to thedetails of construction shown since these may be varied by the skilled out the adoption of my improvements as anl entirety.

Figure 1 is a viewin side elevation of a hy; draulic craneI embodying my mvention, the' re-heating furnace in connection with which vertical section.A Fig. 2 is a plan view,partsthe apparatus is shown, being illustrated in being omitted. 3 is aviewfin longitudinal section through the hydraulic cylinder whereby the shifting of the load carriage is effected. Fig. 4 is a view in longitudinal section'through the telescopic supply pipe whereby water or other iiuid is delivered to the vertical cylinder that is sustainedby the load carriage. Fig. 5 is a view in vertical section on line 5 5 of Figs. 1 and 2, the pendulum supply pipe being shown in elevation. Fig.

V 6 is a View of the telescopic pendulum supply pipe and its connections, parts being broken away for better illustration. Fig. 7

is a detail view of the load carriage andparts sustained thereby, certain parts being shown of the main platform, the hydraulic cylinder for shifting said platform being shown in vertical section. Fig. 10 is a view of the pipes whereby the water or other duid is admitted to and discharged from the hydraulic cyliny der whereby the rack bar of the load carriage .is shifted. Fig. 11 is a detail front view of detail sectional view of a four-way valve. Fig. -f

17 is a detail sectional View of a three-way valve.

A designates suitable uprights which serve by means of the brackets a to sustain the rails a whereon the wheels of lthe main platform will travel. This main platform is preferably formed of the end trucks B and B that are united together by the long rails or I-beams B2 and B3. As these rails are of considerable length they will be braced by suitable bars 2 and 3 arranged at convenient points throughout their length. Each'of' the end trucks B and B consists preferably of a single casting having a vertical portion 5 and a horizontal portion 6, said horizontal portion having bifurcated ends 7 wherein are journaled the carrying wheels 8 of the platform.

Upon the rails or I-bearns B2, B3 of .the main platform travel the wheels 10 of the load carriage C, the-constructioujof which is. more particularly shown in Figs. 1, 2, 7 and 8. This load carriage preferably comprises a body or horizontal portion l2 inthe ends of Which-are jou rnaled the axles 13 of the wheels 10,-and by preference the body 12 of the carriage has-cast in one piece therewith a vertical cylinder CV th rough which passes the vertical'lifting shaft D. This shaft D has attached thereto apis- I ton d `that works within the cylinder` Cand the-upper end D of the shaft D hasa groove-l d' therein to receive a rib 15 that'isfo'rmed on the hub of the turning pinion-Eat'thetop :.of the vertical cylinder C. r

By reference'more particularlyto Fig. 8 of O is providedjwith a top plate "C2A bolted thereto, and in order to permit a free revolutoo the drawings itwill be seenrth'at-the"cylinder' f placed in position.

tion of the turning pinion E, the hub of this pinion is formed with an extension e that passes through the top plate C2 of the cylinder, the lower end of this extension e being screw threaded to receive a threaded ring` 16 which serves to hold the pinion E in place upon the top plate C? of the cylinder C. The hub of the pinion E is preferablyprovided with the stuffing box e to prevent leakage. The lower end of the cylinder C is provided with a bushing 17 and with a stuiing box 18 conveniently bolted thereto as at 19 in order to guard against leakage at the lower end of the cylinder, and the casting at the lower end of the cylinder C is preferably formed with an open space 20 to permit the sections of the bushing 17 and of the stuffing box 18 to be To the bottom of the casting wherein the cylinder C is formed is conveniently bolted thereto.

bolted an extension 21 having a bearing sleeve 22 through which passes the vertical shaft D. At the top and bottom respectively of the cylinder C are connected the pipes 23 and 24 whereby water or other fluid will be supplied to the cylinder in order to effect the shifting of the piston d and consequently the raising and lowering of the shaft D, as will presently be more fully described.

By reference more particularly to Figs. l, 7 and 8 of the drawings it will be seen that with the turning pinion E engages the shifting rack bar F, the teeth of this rack bar being held in engagement with the pinion by means of the guide roller 25 that is journaled upon a stud 26 rising from the top plate C2 of the vertical cylinder C. To the rack bar F is connected a piston rod F', the piston f of which rod travels within a horizontal cylinder F2. One end of this cylinder F2 is closed by cap 26 that will be bolted to the head 27 that is threaded to engage the threaded end of the cylinder F2, and the opposite end of the cylinder has a threaded portion that enters the threaded upper end 28 of a standard 29 (see Fig. l), that is bolted to the horizontal portion 12 of the load carriage. To the upper end 28 of the standard 29 is bolted the `head plateBO of the cylinder through which passes the piston rod F this head plate be ing furnished with a suitable stuffing box 3l The ends of the cylinder F2 have attached thereto the pipes 32 and 33 for the passage of the water or other Huid whereby the shifting of the piston f within the cylinder will be effected.` as will f :presently more fully appear.

i From the construction of parts thus far deined it will be seen that the main platform whereby the load carriage C is sustained can be moved back and forth upon the rails a while tlload carriage C can be shifted upon the rails or I-bealns B2, B3 of the platform and at right.-angles to the line of travel of the platform. So also it is plain that by the admission of wat er under pressure to the cylinder C the vertical shaft D (whereby the load to be shifted will be sustained) can be raised and lowered, and by means of the rack bar F and the turning,r pinion E revolution can be imparted to the vertical shaft D in order to swingr the load carrying arm G at the end of the vertical shaft D in desired direction.

The mechanism whereby the shifting of the platform, of the load carriage and of the vertical load sustaining shaft D is effected will next be described.

Suitably sustained above the apparatus is a main supply pipe H for water or other fluid and to the end of this pipe is united by suitable swivel coupling tl the upper end of the telescopic supply pipe which consists of the sections I and I. The section I is furnished at its lower end with a cap 38 and stuiing box 39 through which passes the section I', and the lower end of the section I is provided with a swivel coupling z" that is attached by the brackets 40 and 4l (see Figs. l, 2 and 6) with one of the rails B2 of the main platform. The construction of the swivel coupling at the upper end of the telescopic pendulumsupplypipe isthe same as that illustrated at the lower end of such pipe, the brackets sustaining the swivel coupling 'L' atthe upper end being similar to the brackets 40 and 41. It will thus be seen that as the main platform is m'oved back and forth the telescopic pendulumsupply pipewillpermitacontinuous tiow of water therethrough from the main supply pipe H (see dotted lines Fig. 5). To the swivel coupling i at the lower end of the pendulum supply pipe is connected, by means of bracket 40 (see Figs. 1, 2 and 6), a pipe 42, which is preferably curved as in Figs. 1 and 2 to pass outside the line of travel of the carriage C, and this. pipe leads to a four-way coupling 43 which, as well as all of the supply pipes to be hereinafterdescribed are supported by and moved with the main platform. From the coupling 43 water will pass by the short pipe 44 into the four-way `valve 45, to

which are connected the pipes 46 and 47 that.

lead to the opposite ends of the platform shifting cylinder K. This cylinder K vis mounted in manner free to slide upon the long rod L to which is attached the piston l within the cylinderiK. 'lhe ends of the cylinder K are furnished with the heads 50, 51, threaded to engage the threaded ends of the cylinder and to these heads are suitably bolted the end plates 52 carrying the stuffing boxes 53, the end plates and stulng boxes being perforated to receive the rod L.` To the cylinder K are bolted the sectionalbands 54 (see Figs. 9 and 14), the lower flanges 55 of these bands serving to retain the blocks'56 that slide upon the rail 57. The rail 57 is formed of sections (see Fig. 15) the webs of which are cut away as shown at Fig. 15 to receive the brackets a. that sustain the main rails a of the platform.

The cylinder K is connected to the end truck B of the main platform by bands 58 that encircle the cylinder and are bolted .to

IOC

the truck B as at'59 so as to insure the movement of theplatform with the cylinder, and

ment of both ends of theplatform.- The fourway valve 45 is provided with a handle 60a that extends downward in position to be' manipulated by the operator standing upon the suspended frame 6l that is supported by suitable rods connected to the main platform, and it will be seen that when the handleO is shifted so as to cause water to flow from the fourway valve'chamber 45 through the pipe 46 and into the corresponding endof vthe cylinder'K, the cylinder-will be shifted in the direction of the arrow, Fig. 9 and will cause a like movement of the main platform in such direction.

1 While-thecylinder and platform are thus 29 opposite endof the cylinder K will iiow shifted, a freeescape of the water from the through the pipe 47 and through one of the y channels of vthe four-way Valve-45, whence it-will pass by suitable discharge pipe into a gutter conveniently arranged beneath the path of .travel of the4 .platform...1t is obvious also that if the handle Ofofthe four- 1 way valve 45 is reversed so as to cause the passage of water through the pipe 47 and into the cylinder K, the'direction of travel of the cylinder K and of the platformv will be reversed, and the water from the opposite end of the Acylinder-K will escape by way of the pipe 46. p In order to enable -the carriage C to be shifted back and forth upon the rails ofthe main platform I have provided a hydraulic cylinder M thatis'attached to the main platform in suitable manner, this cylinder M having screw threaded heads m and m ,the head m having bolted thereto a cap plate mi. and

the stuffing box m3 thropughwhich passes the piston rodN. One end of this piston lrod'N h as a piston n working within thecylinder M, -while the oppositeiend'of vthis-piston rod is connected to an armi 68sthat is bolted to the load carriage C (see Fig. 2). To one end ofthe cylinder M connectsa water pipe 70 and to the opposite end of this cylinder connects a wafer pipe '71. Both of these pipes lead to a four-Way valve 7 2 located-at one end of fthe platform above the opera'tors stand 6l,

= this four-way valve`72 -being furnished with a lhandle 73 whereby a supply and discharge of'waterthrough the pipes70 and 7l can be controlled. Hence it will be seen that when the-operator desires to movethe carriage O in one direction, for example toward the op- 'erators stand 6l h-e will shift the handleA 73 of thevalve 72 so as to cause the supply of water (which is delivered to the lfour-way -valve 72 by a pipe 74 from the main coupling 43)- to pass through the pipe O'into the cylinder M. The water thus entering the cylinder will force the piston noutward causing the carriage C to move toward the o eratorsstand, and the water from the opposite side through the pipe 70.`

In order to raise and lower the vertical load sustaining shaft D (see Fig. 8)II connect the fpipe 24 at the lower end of the cylinder C .withrthe telescopic supply pipe formed of the sections@ and O (see Fig. 4), the section O of this pipe having one endclosed by capV o and having its opposite end provided with a head o and a stuling box o2 through 'which passes the section O. This section O of the supply pipe leads to the end of the platform and is there fixed as shown at 8O in Fig. 2and .by means of the cross pipe 81 it is connected with a three-way valve 82-'that receives a 'supply of water from the main coupling 43, this valve 82 being furnished with asuitable discharge pipe that empties into the gutter for waste water and being furnished also with a hand lever 83. The pipe 2-3 at the vupper end of the cylinder C is simply avent pipe to permit the admission and the escape of air above the piston d, since it is not necessary to employ power for moving downward the piston d, as the weight of the load 'and of the vertical shaft D Will effect movement of the shaft.

From the foregoing description it will be seen that when the operator shifts the valve lever 83 soas tol cause water to' pass through the pipes 8l, O", O and,24, intothe cylinder C', the piston d will be forced upward inthe cylinder and .will carry with it-the load sustaining shaft D. lW hen `the operator reverses the lever 83 the weight of 'the r shaft D and its loadr will draw downwardvthefpiston d; forcing -the Ywater to escape through the pipes by which it was delivered to the cylinder.

To enable the load sustaining shaft-D to be 'turned in order to permit the load carrying arm G to be' swung in: desired direction, through the medium of the turning-piniouE shifting rack F, cylinder F2 and piston f, as -hereinbefore detined,1 connect one end of the cylinder F2 by means of a pipe 32 to a shifting supply and-dischargepipe 90 and I connect the opposite end of this cylin'derF2 by a pipe 33 to a similar shifting supply'and discharge pipey 91,v the construction ofl which pipes is more particularly illustrated in'Figs. 7 and l0 of the drawings. The shifting sup- Y1 oo the downward IIO plypipe 90 is furnished at its opposite'ends with the heads 92 to which are bolted the'caps -93-and stuflingfboxes 94 and through these caps and; stuffing boxespasses the pipe 95 that connects by a bent pipe 96 with afourway valve 97 that will be furnished: witha vvalve lever'98 and'with-'a suitable waste pipe leading to the common gutter for waste water. In like manner the pipe 91 will be provided with heads 92, cap plates 93 and stuffing boxes 94, through which cap plates and studing boxes extends the fixed pipe 99 that connects by a cross pipe 100 with the four-way valve 97. It will be observed that each of the pipes 95 and 99, are fixed pipes a constant communication heilig maintained between the shifting pipes and 91 and the fixed pipes and 99 by means of the orifices 101. Hence it will be seen that when Water is to be admitted into the cylinder F2 for the purpose of shifting the rack bar F in order to turn the vertical shaft D,it is only necessary for the operator to move in proper direction the valve lever 98 of the four-way valve 97. When water is admitted by the fixed pipe 95 and shifting pipe 90, and pipe 33 to the cylinder F2, the piston f will be forced backward from the position shown in Fig. 7, and at the same time Water will escape from the opposite side of the piston through the pipe 32, the shifting pipe 91, the fixed pipe 99, and the pipe 100 into the valve 97 whence it will pass by a waste pipe into the gutter for waste water. By reversing the hand lever` 98, it is obvious that a reverse movement of the piston fand of the rack bar F can be effected. Hence it will be seen that by the manipulation of the proper levers, the operator upon his stand 61 can cause the movement of the main platform and of the load carriage and can also eect the vertical lifting and the turning of the load sustaining shaft D in order to raise and turn to the desired position the load carrying arm G.

When my apparatus is to be employed for the introduction and withdrawal of blooms or like articles into and from re-heatng furnaces I prefer to construct the load carrying arm G and its gripping mechanism as more particularly illustrated in Figs. 1, 11, 12 and 13 of the drawings. This arm G has its hub g connected to the lower end of the vertical shaft D and the under side of this arm G is formed with a groove or channel for the operating rod P that extends from end to end of the arm and serves to control the movement of the gripper jawsR and R at the free end of the arm G. One of the R jaws is bifurcated at its upper end to receive the upper end of the gripper jaw R and through the upper `ends of these jaws passes the stud r whereon the jaws R and R are pivoted, this stud being held within a socket in the end of the load carrying arm G and being provided with a head fr to retain the pivoted jaws in place. The bifurcated jaw R is formed with the slots r2 to receive the eccentrics or cams p2 of the operating rod P, and in like manner the jaw R is formed with a slot r3 to receive the eccentric or cam p3 of the rod P. The outer end of -the operating rod P is sustained by a journal plate p4 bolted to the under side of the arm G, while the opposite end of this rod P is journaled in a hanger p5 that is bolted to the hub g of the arm G and is furnished with a handle p6 whereby the rod can be turned as desired. The free ends of the gripper jaws R and R are preferably furnished with pins fr8 to enable the jaws to more firmly grip the bloom or bar to be shifted.

From the above description it will be seen that when it is desired to lift a bloom or bar W (see Fig. 1), the furnace attendant will turn the handle p6 so as to cause the cams or eccentrics p2, p3 at the opposite end of the rod P to turn the jaws R, R in suchmanner as to force their free ends to firmly ,engage the bar or bloom W. The operator upon the stand 61 will then,by the mechanism hereinbefore described, cause a backward movement of the carriage C so as to withdraw the bar or bloom W from the re-heatng furnace X and will afterward shift the platform and turn the load carrying arm G in order to deposit the bar or bloom W at the desired point. In order to protect the operating rod from being struck by the bar or rail W, I provide the under side of the load carrying arm G with a shield or plate T conveniently bolted thereto.

It is obvious that the precise construction of the gripper jawsand of the load carrying arm may be varied to suit lthe character of the work for which they are to be employed.

Having thus described my invention. what I claim as new, and desire to secure by Letters Patent, is

1. The combination with suitable rails of a movable platform mounted upon said rails, a cylinder connected and movable with said platform for shifting the same, and a fixed piston rod extending through both. ends of said cylinder, and suitable pipes for delivering fluid to said cylinder upon opposite sides of the piston, whereby the platform can be shifted back and forth, substantially as described.

2. The combination with suitable rails of a movable platform, a hydraulic cylinder connected to said platform and movable therewith, a fixed piston rod extending through said cylinder, and a supplemental rail for sustaining said cylinder, substantially as described.

3. rlhe combination with a suitable platform of a load carriage movably sustained thereon. a double acting hydraulic cylinder carried by said platform and arranged outof the line of travel of the load carriage, a piston rod for said cylinder, an arm connecting the free end of the piston rod to -the load carriage, and suitable delivery and discharge pipes for said cylinder, substantially as de-k scribed.

Il. The combination of a movable platform, a load carriage mounted upon and movable on said platform, a hydraulic cylinder connected to and movable with said platform, a fixed piston rod extending through both ends of said cylinder, suitable pipes for delivering IOO iiuid to both ends of said cylinder, a hydraulic l cylinder carried by said platform and extending in the direction of its length and a piston rod for said cylinder connected with theload carriage, said piston rod andcylinder being of sufficient length to eect the back and forth movement of said load carriage, substantially as described.

5. The combination with a suitable load carriage of a hydraulic vcylinder sustained thereby, a vertically movable and rotatable Vshaft' extending through said cylinder and a load carrying arm connected to and sustained by said shaft, whereby said arm can be bodily lifted and rotated, substantially as described.

6. The combination with a platform of a load carriage movably mounted upon .said platform, a vertical cylinder sustained by said load carriage, a rotatable and vertically movable lifting shaft extending through both ends of said cylinder, alpinion mounted upon the upper end or extension of said lifting shaft,

and suitable means for turning said pinion, substantially as described.

7. The combination with a platform of a load carriage movably mounted upon said platform, a vertical cylinder sustained by said I*load carriage, a vertically movable and rotatable lifting shaft passing through both ends ofy said cylinder, apinion connected to said lifting shaft,a rack bar for engaging said.pinion, anda cylinder and piston rod mounted upon and movable with said load carriage for operating said rack bar, substantially as described.

8. The combination With a platform of a load carriage movably mounted thereon, a vertical cylinder sustained by saidv carriage, a rotatable shaft extending through said cylinder, a rack bar and pinion for rotating said shaft, a cylinder and piston movable with said load carriage for operating the rack bar and pinion and movable supply and discharge pipes carried by said load carriage and Iixed pipes extending through said movable supply and discharge pipes Wherebyfluid 1s delivered to the cylinder in order to operate the rack bar and pinion, substantially as described.

JAMEs HoRToN.

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