US977522A - Coke-drawing machine. - Google Patents

Description

H, GRBER, JB. @0KB DRAWING MAGHINE. APPLIGATIONILED SEPT. '7. 1904.

Patented Dec. 6, 1910.

6 SHEETS-SHEET 1.

227, QW M,

AHORA/EXT;

i H. GRBER, JR.

GOKE DRAWING MAGH` 'R APPLIGATION FILED SEPT.

Patented Dec. 6, 1910 5 BHBETVS-SHEET 2.

ATTOR E11/,S

H. GREER, JR.,

COKE DRAWING MAGHINE.

APPLICATION FILED srTsl, 1904 Patented'De'c. 6, 1910.

s 'SHBBTPBHBET a.

NTOR.

l [NVE WITNESSES:

H. GREER,.JR. GOKE DRAWING MAGHNE.

APPLXCATION FILED SEPT. 7. 1904.

977,522'. Patented m0111910.`

a SHEETS-SHEET@ H. GREER, 5R. com DRAWING MACHINE.

APPLIGATION FILED SEPT. 7. 1904.

atentef Dec. 6, 191@ 5 SHEETS-SHEET 5.

.dit

To a-ZZ whom "it may concern:

COKE-BRAWING MACHINE.

Specification of Letters Patent.

atented Dec; 6, lT9110.

-Application filed September 7, 1904-. Serial No. 223,585.

Be it known that I, HOWARD Ganan, J r., a citizen ofthe United States, residing at Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Coke-Drawing Machines, of which the following is a full, clear, and eX- act specification.

This invention relates to that class of machines for drawing colte from cokev ovens which iisnally comprise a hoe orv rake carried upon a horizontall f arranged reciprocal handie which in turn is pivotally mounted upon a car or truck upon vertical and horizontal axes so that while being inserted into or withdrawn from the oven it may he raised or lowered or laterally deiiected to suit the situation of the coke within the oven, the colte drawn out by the hoe falling upon a suitable conveyer which is also mounted on the truck and by is cast up in a pile out vof the way.

rpg/hen the noe is drawn through the 00k@ the particles being drawn out by the hoe shape themselves into a pile of approximately pyramidal form with theapex turned in the direction of the .line of movement. This pyramid grows less and less acute as the hoe advances and also decreases in depth or in the direction ofits vertical axis, the hoe and inner particles of the pile slipping past the particles at the sides or perimeter which are left behind in two straight rows at both edges of the hoe, and if the move` ment he carried far enough, the hoe will eventuaily pass by practically all of the particles Jformerly constituting the pile.

rfhis invention is designed to obviate the described defect in the operation of the hoc and therefore has for one of its important objects to change the plane of the hoe with relation to its linc'of bodily travel so that it will approximate a right angle with the side of the pile, alternately on opposite sides and hence alternately throw the sides of the pile inwardly toward the line of general ad- Vance and thereby keep the particles advancing in front of the hoe, this action of the hoe being also capable of being utilized for the further purpose of working the hoe into the crevices of the coke. when being embedded preparatory to drawing the coke.

The walls of coke ovens being comparatively thick and the doors comparatively narrow, it is obvious that in order to reach all parts of the coke bed with the hoe the handle thereof must be laterally deflected throughout a considerable range and if the center of deflection be any considerable dis- -tance outside the door, the truck must be shifted backward or forward to allow the handle to pass the inner edge of the door.

The invention therefore has for its further objectto so improve the machine as to avoid this obvious and serious objection of having to shift the car with changes of angle of the hoe handle.

in embedding thence im@ ai@ @are arrei quently happens that it engages at a point where the colte is solid, and even though it should enter a crevice between the masses, the crevice is so irregular as to render it diiiicultto embed the hoe by direct downward movement and hence it is desirable to A,also vibrate the hoe haelt and forth to effect an entrance; and the invention therefore has for its further object to give the `hoe such vihratory motion. i

Vvith the described ends in view the invention consists in certain features of novelty in the construction, combination and arrangement of parts whereby,T the said objects and certain other objects which will hereinafter appear are attained, all as fully described with reference -to the accompany.J ing drawings and more particularly pointed out in the claims.

In said drawings Figure l is a plan view partly broken awayand showing the wall of the oven in section. i Fig. l is an enlarged detail section of the hoe tiltingrmechanism. Fig. 2'is a side elevation of the machine with the parts in position shown in -F ig. l, the wall of the oven being in vertical section.

Fig. 3 is an enlarged vertical, longitudinal,

sectional view of the hoe and a part of its handle and operating mechanism. F ig. 4 is a transverse section thereof on the line 4 4 Fig. 3. Fig. 5 is a horizontal section thereof on the line 5 5, Fig. el. Fig. 6 is a transverse section on the line 6"-6 Fig. 5. Fig. 7 is'a vertical, longitudinal sectional view of the machine partly broken away showing the hoe withdrawn and elevated ready to he inserted. Fig. 8 is fan enlarged transverse section on the line 8-8 Fig. 7. Fig. Sis a plan view of the truck Y with the superstructure a rear elevation thereof partly broken away partly broken away, removed. Fig. .10 is' clutch mechanism for raising and lowering the hoe handle, and Fig. 13 is a verticalI section on line 13-13 Fig. 2.

1 is the wall of the coke oven having the usual doors through which the coke is drawn i and one of which is shown at 2, and 3 is the track or railway passing` along the side of the oven contiguous to these doors and on which the aforesaid truck for supporting the drawing machine is driven from door to door at will, usually by a suitable motor mounted upon the truck. In this exemplification of the invention one pair of truck wheels has its axle 5 provided with clutch 6 and bevel gear connection 7 with a worm wheel shaft 8 which is driven by worm 9 on the shaft of a suitable motor 10, the latter being disconnected from the shaft 5 when desired by shifting the clutch. G will be understood. The conreyer for receiving the coke as it is drawn from the door 2 and casting it up on the pile at a suitable distance from the machine, as before described, may be of any suitable construction. It is shown as being composed of slats 11 secured to two endless chains 12, 13 which pass around sprocket wheels 14, 15 on a shaft 16 at one end of the conveyer, and this shaft is mounted in suitable bearings 17 and lhas a sprocket and chain connection 1S with the shaft 8 through the intermediaryv of a clutch 20 mounted in the upper end of a curved* frame or boom 21 whose lower end is pivoted on a rod 22 which 1s mounted 1n suitable brackets 23 on the frame 24 of the truck so that the outer end of the conveyer may be raised and lowered and in order that the outer end may be thus adjusted when required and may be adequately supported while in use, the frame or boom 21 is connected near its upper end to a stay rod 25, one on each side, wh'ose lower ends are attached by any suitable connections 26 to two uprights 27 respectively which are rigidly secured to the sides of the boom 21 respectively at their lower ends and have adjustable eonnection at their upper ends with the frame 24 of the truck. These adjustable connections consist ot eyebolts 28 pivoted to the frame 24 and passing through lugs 29 secured to the uprights27 respectively and provided with nuts 30 on opposite sides 4of the lugs whereby the uprights 27 may be drawn toward the frame 24 pulling on the stay rods 25, for raising the conveyer.

The frame 24 of the truck is preferably quadrant shape in plan view so as to better accommodate the concentric guides 31 for the auxiliary carriage or slide 32 which rests upon the truck frame 24 and is provided with flanges 33 or other suitable means for engaging with the guides 81 and holding the carriage or slide 32 in position, the carriage or slide 32 being curved or of quadrant shape similar to the frame 24 as better shown in Fig. 1. The curvature of both of these members is outward or away from the wall of the oven, with the lower end of the conveyer central with relation to the ways or guides 31 and projecting toward the oven wall considerably beyond'the inner edge of the carriage or slide 32, as better shown in Fig. l. so that as the colte is withdrawn from the door it may be readily directed upon the lower end of the conveyer by amV suitable chute 34 secured to the truck frame 24, and which frame has an opening or passage 35 in its under side for the accommodation df the said conveyor and the coke supported thereon A\ll of the operating mechanism,with the exception of the conveyer and means for driving the truck, is mounted upon this auxiliary carriage or slide 32 and is capable of having its position on the truck readily changed throughout the length. of1 the ways: 3l in order to introduce the hoe into the oven at various angles with relation to the oven walls as will now be explained.

Formed on or secured to the'slide iare two frame members 35, 36 and in these is journaled a horizontal shaft 87 upon which is pivoted a tilting frame 38, constituting the support for the hoe and its handle and provided with two pairs of Aflanged rollers 39, 4() pivoted therein on pins 41 and serving for the direct supportof the handle of the hoe which may be constructed in any suit able way but which is shown as composed of two channel bars 42, 4.3 arranged with their hollow sides together as better shown in Fig. 8, and fitted accurately between the tianges of the two pairs of rollersl 3S), 40, the pairs of rollers being situated in the frame 38 a considerable distance apartalas shown in Figs. 2 and 7, so that the handle of the hoe will be given an adequate support while it will be free to slide or run lietween the rollers without liability of bending when the hoe, 4 4, carried on the inner end thereof meets an obstruction. The frame 24 of the truck is provided with a segment rack 45 arranged on the upper side thereof concentrically with the waysl and iu a pair of hangers 46, see Figs. 9, 10, on the under -side of the slide 32 is jourualed a worm shaft 47 which meshes with the said segment rack 45 and when rotated, it will be seen, ,causes the slide or auxiliary carriage CIK llfi

32 to travel back and forth along the ways" 31 independently of any movement of -the truck on the rails 3. rhe center of the arcs on which the ways 31 are struck being situated somewhere within the door 2 of the and to substantially all points within the Vwhereas if the center of horizontal oscil-y oven walls, without shifting the truck on the track 3 or causing the hoe to discharge -thecontents of the oven where it `will not find proper lodgnient upon the conveyer.

lation of .the vhoe handle were situated over the truck or at any considerable (hstance from the outer face of the wall, the ranget of deflection of such handle, without moving or shifting the truck on the track. would be materially limited.

The necessary motion is imparted to the i worm 47 by any suitable operative connection with a motor 48 preferably mounted d1reetly upon and moving with the slide 32.

' This operative connection may consist, for

examp e,of two trainsof gears, one of which comprises vgears 49, 50, 51 and 52 transmitting motion to .a shaft. 53 on which is secured a pinion 54 meshing with an' idler 55 which engages a pinion 56 on the shaft lso , 57 of the worm 47. The other train of gears comprises gears 58, 59 and 60 which also transmit motion to the shaft'53. The gears 49 and 58 :are arranged on the motor shaft .63, the gears land 59 on the shaft 37, and

the gears and 60 on the shaft 53, but all vthese gears are loose on their respective with .the center of said rotation at the center shafts and are connected thereto only through the intermediary of independent clutches so that motion may be imparted to the shaft 53 by either train independently of the other, 'and because of the presence of the idler gear 50 in one of these trains, one trainrotates the shaft 53 in a direction opposite that of the other, it being observed that gears 58 and 59 intermesh directly Whereas gears 49 .and 51 have the idler 50 interposed between them. y Consequently when one train of gears is active the worm 47 moves the auxiliary carriage or slide32 in one direction on the ways 31 and when :the other train is rendered active it moves the carriagebr slide in the opposite direction, thereby rotating the hoe on its vertical axis of the arc on which the curved ways 31 are described and it Will be understood that the wider this arc the further into the oven such centerwill be situated, although it is not essential for obtaining some ofthe advantages of thus bodily revolving the auxiliary slide or carriage, that the center of revolution be actually within either the door or the oven proper, the principle being that by thus revolving the carriage or slide 32,

u the center may be carried much closer'to the ovenV and. as close as may 'be necessary in y order to enable the hoe to clear the inner in Fig. l1, and theconstruction corners of the doorway when the hoe is introduced at an oblique angle for reaching the sides of the. oven near the front.

All of the gears 5l, 59, 52, 60 are loose on their respective shafts 37, 53 and they are preferably formed on 'or secured to and in fact constitute one member of their respective clutches before referred to. These clutches are similar iu construction, and in Fig. Il the clutches which I'drive the gears 51, 59are illustrated in section as typical of all of them. It will be seen by reference to 'this figure that the gearivheel is hollow or the toothed portion being formed on an annular lange 62 whichsurrounds a cone 64. This cone, together with the gear, constitutes one member of the clutch, the other member of which is in the form of a cup 65'sec'ured to the shaft on which the gear is loosely journaled so as to slide longitudinally but revolve therewith. l'n each of they shafts is formed two slots G6 and through the hubs of the cups 65 pass keys 67, G8 and these keys -are connected together in such a way that when o ne of the cups- 65 atone end of the shaft is thrown into engagement. the cup 65 on the opposite end of the same shaft will be thrown out of engagement. ln'order to do this the shaft is made hollow and in it is situated a sliding rod 69 to which the said keys are connected as shown.

sov

in section in Fig. ll in connection with theVv shaft 37, the construction for the shaft 53 and keysv 68 being similar and the rod corresponding to rod 69 being shown at 70, Fig. 11. In order that the requisite longitudinal. movement may be impartedto the rods-69, 7 O, they are provided with operating handles or levers 7l, 72 respectively which have suitable connection with the rods, consisting of a screw 73 screw threaded in a cap 74 and .provided with swivel'connection 75 with the end of the rod. This construction in connection with the rod G9 is shown in section is similarv for the rod 70 and lever 72. j lVhen the lever 7l, for example, is oscil- Alated th-e screw 73 Will pull the rod 69`longitudinally or force .it inwardly according to the direction of oscillation, and thereby throw one of the clutch members ($5 outI ofy;

action and the other one into action. Theone that is in action Will rotate. the gear wheel .51 or 59 and thereby impart rotation to the` gear Wheel 52 or G0 on that side. If

now it should be desired to shift the auxiliary carriage or slide 32 longitudinally of th-e yways 3l, the clutch lever 72 will be thrown to the right or to the left accordingT to the direction in which it is desired to send the carriage. lf for example .it be thrown to the right, asvicwed in Fig.' ll, the lever 7l having previously been thrown to thel right, the shaft 53 will become connected to the train of gears 51, 52 and the worm l? sired to allow the carriagej82 to remain at, rest butto move the hoe handle 42, 48, up, or down, the lever 72 would be so placed to allow both clutch members (35 on the shaft l 58 to remain out oil engagementavherehy onev or the other of the gears 52,60 may be util,

ized as an idler for'communicating rotation to either of a pair ot gears i (l, 77, which are ournaled loosel f u )on a shaft 78 and are 0 provided with clutch members 79, 80 respectively adapted to he engaged alternatelyT by companion clutch members 81, 82 sliding on shaft 78 but operatively connected therewith by keys 88, 84 respectively so that the shaft 78 willrotate to the right or to the left accordingly as the clutch member vS1 or the member 82 is in engagement with -its companion member. The clutch members.

81, 82 are secured through the medium of 39 the keys 85%84 to a rod 85 inserted through shaft 78 like`the rods G9, 70, and the end of rod 85 is connected to an operating lever 86 like the levers 71, 72 and by a means similar to that described with reference tothe lever '71, namely, the screw 73, cap 74 and A,

coupling 75. The shaft 78 is provided. with al screw 87 on which isparrange'd a. nut 88 secured to a slide 89 which takes its support upon the top of the carriage 32, thus relieving the screw 87 of transverse strain. The slide 89 is pivoted to the lower end of a forked link 90 whose upper end is pivoted to a horizontal or substantially horizontal lever 91. One end of the latterl` is pivoted at 92.

ina suitable standard or'fxed support 98 mounted on the carriage or slide 82 and the other end of the lever 91 is connected to the pivoted frame 38, which constitutes aguide .and keeperfor the hoe handle,l through the medium of any suitable connection such as a pair of hangers 94 connected by a cross bar 95 on which is arranged a lug 96 pivoted to lever 91. By this means itwill be seen that when the nut 88 travels along the screw 87, as a result ot' the rotation of the latter, the lever 91`will be raised and lowered and as a consequence the inclination of the hoe handle will he changed, the handle being I lowered at the outer end when the nut 88 moves toward the clutch 81 and raised when the nut moves in the opposite direction and this action of the nut is under the control ot the operator through the handle orlever 86 which gives the nut an operative connec-` 55 tion with the motor 48 through either train of gears 49, 50, 51g, 52 and 76 which moves the nut in one direction, or 58, 59, 60 and 77 which moves the nut in the opposite direction the length of the screw 87 or as long as the proper one of Ithe clutches 82 is 70 held in engagement with ,its companion clutch member. The lever 91 is preferably composed of iiexible material such as tempered steel so that in the event of this ver, tical oscillation or' the hoe handle meeting/t7 with an abnormal resistance, 'the lever 91 will yield without damaging the mechanism. The means tor inserting and withdrawing the hoe. that. is moving its handle longitudinally through its guide rol ers 39 40`will 80 now be described. The channel bar 43 is iormed on the under side with a. series of teeth 97 constituting a rack' bar and with this rack bar engages a pinion 98 keyed to shaft 97 and consequently is adapted to be 85 rotated to the right or to the left accordingly as the clutch lever 71 is thrown in one direction or the other and yhence the hoe handle will be moved longitudinally the Jfull length of the rack bar 97, or as long as one vof the clutches on the shaft 37 is in engagement, this action also being under the absolute control of the operator through the Inedium ot' the lever 7 Y The hoe proper 44 has pivotal connection 95 with its handle on vertical and horizontal Atratnsverse axes, one olc these axes is constituted by a pin 99, arranged horizontally and extending transversely'A of the h'oe handle,

and connects the hoe to a shank 100, which 10Q..

is arrangedbetweenj and pivoted to a pair of lugs lCln the back of the hoe, the shank 100 being provided at itslower end lwith laterally elongated bearings 102, for the pin 99. The shank @100 is pivoted in` a yoke 103 105 by means of avertical pin 104, which constitutes the other one or' the axes ofthe hoe. The yoke 103 is formed on or secured to an arm 105 which is attached in any suitableA manner to the channelbars 42, 48 constitut- 110 i the arms 10G on the pivot 104 and which 120i oscillation is caused by the rotation of the cani 107 Vbetween the arms 106. The cam- 107 is n'tountedvupon one end of a shaft 108, journaled contiguous to the cam in bearings 109, '110 whichare formed on or secured to 1125 the upper' side of the arm 105, and the shaft 108 is also supported in bearings 111 located yatv suitable intervals throughout .the length rofthe lower channel bar'43. It will thus be seen that when the shaft.- 108 is rotated,13

i the hoe will be oscillated on its vertical axis to necessary for preventing the particles of" 104 or given the movement before referred the coke or other material from slipping past the hoe, or vice versa, while the hoe is being withdrawn, as well as giving the hoe that wrig'gling movement which facilitates its introduction in a downward direction in the coke bed. Rotation for this purpose may be imparted to the shaft 108 by any suitable means but preferably by a small motor 112 mounted directly upon the hoe handle and preferably at the outer end of the hoe handle so as to at the same time serve as a connterbalance for the handle and hoe, the outer end of the shaft 108 being provided with a gear wheel 113, with which meshes 'a inion 114C on the shaft of the motor 112.

lectrical connection is established with the motor 112 from any suitable source of current through a flexible connection 115,which is preferably wound up by any suitable take up device 116 of a well known form for winding up tapes. etc., mounted upon and moving with the slide 32, so that the motor will have its independent connection during its travel back and forth and without depending upon the medium of any metallic parts of the machine for that purpose or making such connection through the intermediary of any parts 'that have been inserted into the oven.

The pivot 9S) permits the hoe 4.4ito be folded backwardly under its handle while being inserted and after it is inserted it may be pulled downwardly into its operative position by a rod 117 pivoted at 117a to the upper-end of the hoe proper and arranged in suitable guides along the top of channel bar 42. This rod 117 is sufhciently flexible to allow the hoe to make its various described movements without interference, and it may be given longitudinal movement by a pin wheel 118 journaled in the frame 38 on a shaft 119,l one of whose bearings 120 iseccentric thereto and is provided with a handle 120n whereby the pins of wheel 118 may be thrown downwardly int-o engagement with holes 122 Ain the rod 117. The shaft 119 may be rotated by handle 121. and

thus cause the hoe to vibrate on its pivot 9S).

The cam 107 is incased as far as possible by an extension 123 of the upper side of channel bar 42, `which is` slotted at 12J: for the passage of the rod 11i. the arm 105 being provided with side flanges s.

In order to relieve the strain on the pivots 99, 1041 as far as possible when the hoe in operation, the upper end of the hoe is turned backwardly. as shown more clearly in Fig. 7, and provided with -a socket 125 which fits over the upper end of pivot 104 and the upper end of yoke 103 when the hoe is thrown downwardly, as shown in Fig. 2.

With a machine thus constructed it will be seen that the operator has absolute con trol over all movements of the hoe which B126, 127 being interposed between the ends of the worm and one of the hangers 46 and the pinion 56 respectively so that should the hoe handle or hoe meet with an abnormal `resistance or obstruction auring the travel, of the carriage 32 upon the wa s. 31,

the springs 126, 127 will yield suthciently to givethe operator an opportunity to throw the leverv72 and stop the movement of the carriage 32. lt will also be seen that dur ing the withdrawing movement of the hoe which is effectedby the pinion 98 and rack Abar 97, the hoe is also given the important wriggling movement or oscillation on its vertical axis for purposes before described as long' as the motor on the hoe handle is left in operation, and this too is under the absolute control of the operator. f

Having thus described my invention what lclaim as new therein and desire to secure by Letters Patent, is: f'

l.' In a machine for the purpose describedA the combination of a hoe handle and a. hoe pivoted thereto on a vertical axis, means for supporting the handle horizontall and means for oscillating' the lhoe on the said axis. 2. ln a machine for the purpose described the combination of a hoe pivoted on a vertical axis contiguous thereto, means for movingl the hoe horizontally and means for oscillating the hoe on said axis.

v 3. In a machine for the purpose described the combination of a hoe rotatable on avertical axis and a handle therefor rotatable about a di'erent vert-ical axis, means for supportingthe handle and means for oscillating the hoe about the first said axis. y

4. In a machine for the purpose described the *combination of a hoe rotatable on a vertical axis, a movable handle therefor rotatable about a different vertical axis, means for supporting the handle and meansmounted upon and movable vwith the handle for oscillating the hoe about the first said axis. .1

5. ln a machine for the purpose described the combination of a hoe, a handle therefor, a hifurrated arm secured to the hoe and pivoted to said handle, acam journaled on the handle and arranged between the branches ofsaid arm and means for rotating?- said cam `and thereby oscillating the hoe. (3.' In a machine for the purpose described,

the combination of a hoe handle, a hoe -piv oted thereto on a horizontal axis, positive means for operatingthe hoe, the upper edge of said hoe beyond the pivot being deflected rearwardly, and means other than the operating means for engaging said top projection for bracing and forming a rigid lock for the hoe.

7. In a machine for the purpose described the combination of a hoe handle, a hoe pivoted on a horizontal axis and connected thereto, an operating connection with the hoe extending toward the opposite end of the handle and having perforations, an eccentric pin wheel having pins adapted to entnrning said wheel.

8. In a machine for the purpose described the combination of a hoe, a handle for said hoe comprising two channel bars' secured with their hollow sides together and havingpivotal connection with the hoe, a shaft jonrnaled within said channel bars and motor and hoe for moving the hoe on its pivot, and means for pivotally supporting the handle on a horizontal axis.

10. In a machine for the purpose described the combination of a hoe handle. a hoe having pivotal support on one end thereof, a motor mounted on the other end of the handle, an operative connection. between the hoe and the motor whereby the hoe moved on its pivot, means for supporting and moving the handle longitudinally, a flexible connection between the motor and a source of power, and means for taking up the slack in said flexible connection as the motor moves with the'handle. v Y

Il. In a machine for the purpose described.` the combination of la lioe, an independently movable truck, a reciprocatory handle tor the hoe ,supported for movement on an iin-v aginary vertical axis outside the truck, and

-means. supported on the truck for recipro` eating the handle.

12. In a machine for the purpose described, the combination of a hoe, a handle therefor, means for supporting the handle for movement on an imaginary normally vertical axis within the oven door when the hoe is inserted,and means for moving said support.

13. .In a machine for the purpose described the combination of a hoe, a handle therefor, a curved way, a support Afor said handle on said way and yielding means for moving said support back and forth along said way.

14. In a machine for the purpose described 'gage in said perforations and means forV the combination of a hoe, a handle therefor, a-curved way, a support for said handle mounted on said way, a motor mounted on said support, a segment on said support, a

worm engaging the segment, two trains of,

gears between the worms and motor 'for rotating the worin in either direction. and means for disconnecting either train at will. l5. In a machine for the purpose described. the combination of a hoe, a handle therefor, a truck, a curved way on said truck, the iinaginary axis of said way being situated at a point beyond. the vertical plane of the oven wall when the hoe is inserted inthe oven, a carriage mounted on said way and on which said hoe handle is mounted and movable longitudinally independently of said carriage.

1G. In a niachine for the purpose described tlie combination of a hoe, a handle therefor, means for pivotally supporting said handle, a screw, means for rotating the same at will, a traveling nut on said screw, and a link connecting said nut with the First said means.

1T. In a machine for the purpose described the combination of4 a hoe, a handle therefor, means 4tor pivotally supporting said handle, a'screw, means for rotating the. same at will, a traveling nut on said screw andv a yielding operative connection between said mit' and the first said means. 1S. In a' machine for the purpose described the combination of a hoe, a handle therefor, means tor .pivotally supporting 'said handle. a screw, means tor rotating the same at will, a traveling nut. on said screw. a pivoted lever connected with the first said means and a link connecting said nut and lever whereby the movement of the nut will oscillatc the lcvcr.

lf). In a machine tor the purpose described the oiiil iii:ition ot a hoe, a handle therefor. a carriage movable along an indirect line. means for pivotally snpl'iorting said handle on said carriage on a horizontal axis.` a driving means for .moving said carriage. a reciprocating means for moving said handle longitudinally, a tilting means for tiltingl the handle, a motor, two trains of gears connecting said driving, reciprocating` and tilting means with said motor, one of said trains being a reversing train, and

means for Arendering either train activent will. l

20. In a machine tor the purpose de scribed the combination of a hoe, a handle therefor, a carriage movable along an indilrect line, means tor pivotally supporting said handle on said carriage on a hori" iital axis, a driving means for moving said carriage, a reciprocating means for moving the handle longitudinally, a tilting means for `tilting the handle, a motor, two trains of gears connecting said driving, reciprocating, and tilting means, with said motor, one of pairs, and ltwo clutches for each of said' pairs adapted to alternately lconnect the through the'arc of gears of that pair with their said shaft.

2l. In a machine for the purpose described the combipation otra truck, a conveyer having one end mounted thereon extending beyond the front of the truck, and comprising a 'frame piroted to the tru'ck, uprights rising from said frame, adjusting screws connecting said uprights with the truck, and independent stay rods secured to said uprights and to the onterend ot' said frame forfadjustably supporting the con-A veyer. i

s22. In a machine for t-he purpose described, the combination of a hoe, a handle to which said hoe is connected on a horizontal pivot, a support, means for connecting the handle to the support on a normally vertical imaginary pivot within the oven door, and means for moving the support.

23. In a coke drawer, the combination of aA truck and a bodily movable carriage mounted thereon arranged to travel laterally a circle and provided with a reciprocating ram. l

Q4; In a coke drawer, the combination 'of a trnck,'a laterally movable bodily traveling carriage thereon provided with a reciprocating ram, and means embodying a curvilinear trackway for positioning the carriage andv fram at varying angles with relatlon to theV truck.

25. In a coke drawer, the combination of a 'truck and a bodily movable carriage mounted thereon arranged to travel laterally through the arc of a circle and provided with a reciprocating ram, and means for loeating the ram carri ge at varying positions on the truck.

26. A coke drawer comprising a truck provided with a curved controlling trackway, and a laterally niovable ram carriage and ram supported upon the truck and conlrolled solely by said trackway asftotheir relative position with relation to the truck.-

27. In a coke drawer, the combination of a truck and a bodily movable carriage mounted thereon arranged to travel laterally througlrthe arc of a circle and provided with a reciprocating ram, means for locating the ram carriage at' varying positions on the truck. and means for actuating the ram.

28. A coke drawer comjnising a truck provided with 'a curved trackway described from a theoretical center outside the truck, and a carriage mounted on Vthe truck having devices \engaging said trackway and provided with a reciprmfatingl ram.

29. In a coke drawer, the combination of a truck having a Hat upper surface and a curved trackway, and an unattached freely movable carriage mounted for lateral movementon the truck and controlled as to its movement solely by said trackway, and provided with a reciprocating ram. j

30. In a coke drawer, the combination of a supporting truckprovided with a curved trackway extending transversely across the truck, acarriage freely mounted upon said truck and adapted to be controlled as to its position by said trackway, anda reciprocating ram mounted in said carriage.

'31. In a coke drawer', the combination of'a truck, a laterally movable ram carriage, a

reciprocating ram mounted on said carriage,

and means mounted on and traveling with the ram carriage for actuating the 'ram at its 80 various positions withrelation to the truck. 32. In a coke drawing machine arranged to travel in `front of and closely adjacent to a bank of ovens: the combination with the truck, of a ram carriage having areciproeating ramand arranged to travel laterally in the arc of a circle'desoribed from a theolI retical center so positioned with relation to' the operative position of the oven door as to permit of varying' lateral positions of the 90 ram to explore the interior of the oven without moving the truck. l

33. In a coke drawer, the combination. of a truck provided with -a curvilinear track- Way, and a non-pivotally-attached ram car/- riage controlled as to its direction of travel by said trackway and provided Vwith a reeip-j rocating ram.

34. In a coke drawer, with a bank of ovens and located in front thereof, of

-the combination supporting rails a laterally trav-` veling truck mounted on the rails, a'freely and bodilyv movable ram carriage mounted f on the truck and provided with a reciprocatf ing ram, and means for operating the ram 105 carriage and'ram and vfor defining their movement vwith relation to an imaginary center adjacent to the oven door, for the pur.v pose described.

35. A coke drawing machine consisting of ,1,.10 aportable truck provided with a shifting relatively movable vram carriage and ram, f and means embodying a' 'curvilinear trackway for independently adjusting the ram carriage and ram and for locating them at varying angles and positions with relation to thev truck.

36. A coke drawing machine consisting oj' a portable truck provided with a shifting .relatively Amovable ram-carriage .and ram means embodyinga curvilinear trackway for independently adjusting the ram carriage and ram and for locating them at varying angles and positions with relation to thc truck, and means mounted on the ram carriage Jfor actuatingthe ram.

HOIVARD GREER, Ja. l/Vitnesses z FRANCIS A. HorniNs, IVI. B. ALLs'rAn'r i

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