US2305381A

US2305381A - Car unloading apparatus

Info

Publication number: US2305381A
Application number: US395777A
Authority: US
Inventors: Jr Edward E Frauenheim
Original assignee: Individual
Current assignee: Individual
Priority date: 1941-05-29
Filing date: 1941-05-29
Publication date: 1942-12-15
Anticipated expiration: 1959-12-15

Description

Dec. 15, 1942.. E. EkFRAUENHElM, JR- I CAR UNLOADING APPARATUS Filed May 29, 1941' 4 Sheets-Sheet l Dec. 15, 1942. E. E. FRAUENHEIM, JR

CAR UNLOADING APPARATUS 4 Sheets-Sheet 2 Filed May 29, 1941 INVENTOR H fi urlzflaaenf1ezhz ATTORNEY-5 1 1942- E. E. FRAUENHEIM, JR

CAR UNLOADING APPARATUS Filed May 29, 194i 4 Sheets-Sheet s 0 n ll ATTORNEYS r-:; E. FRAUENHEIM JR CAR UNLOADING APPARATUS Dec. 15, 1942.

Filed May 29, 1941 4 Sheets-Sheet BY J 79% ATTORNEYS AQN Patented Dec. 15, 1942 UNITED STATES PATENT OFFICE CAR UN LOADING APPARATUS Edward E. Frauenheim; Jr., Bufi'alo, N. Y.

Application May 29, 1941, Serial No. 395,777

14 Claims.

This invention relates to improvements in apparatus for unloading bulk materials from box cars and, although not necessarily limited to suclt use, is characterized by features which render it of particular utility in connection with the unloading of cars of the kind having doors provided by cooperage which is nailed or otherwise secured in place and which can be removed I in conventional manner only in a slow and arduous operation.

One object of the invention is to provide for facility and speed, with a minimum of labor, in the unloading of a car of the type generally described, the carrying out. of this object involving the lowering of the side of the car having the door to be broken in to thereby enable the weight of the car to be utilized in this operation and to facilitate ,discharge'of the material from the car.

A further object is to; provide apparatus which requires only one operator w-hich is simple and compact in design and which has a low power consumption. 7

A still further object is apparatus wherein provision is made for protecting the operator from the dust which rises from the material being,

unloaded and for accommodating him within the car-in such a position that he can observe the operation of the shovels and manipulate them as desired.

A still further object is to provide apparatus which is available to break in the door of a car rapidly and without damage to the cooperage, this object contemplating apparatus which is so designed that during, and as an incident; to, the breaking-in operation the cooperagewill be elevated to an out-of-the-way position the top of the car while the shovels, pulley blocks, cables and. spreaders will be simultaneously introduced into the car so as to be conveniently accessible to the operator.

Astill further object is to provide apparatus whichis available for the unloading of various materials from cars of various sizes and having various doorway dimensions, which may be readily adapted to existing trackand receiving pit facilities and which, in the event such facilities include double tracks, is available for the servicing of both tracks.

The invention is illustrated in the accompanying drawings in which:

Figure '1 is a view, partially in elevation and partially in section, of apparatus embodying the features of the invention, the carriage for breaking in the cooperage being rocked to its initial position with respect to the doorway of a car.

Figure 2 is a similar view showing the carriage in the same position and illustrating the manner in which it is caused to enter the doorway to break in the cooperage when the adjacent side of the car is lowered.

Figure 3 is an enlarged detail section taken along line 33 of Figure 5.

Figure 4 is a view, partially in elevation and partially in section,,showing the carriage rocked to the position in which it supports the cooperage in the top of the car.

t Figure 5 is aside elevational view of one end of the car, the parts occupying the positions shown in Figure 4, and illustrates the hydraulic system employed for lowering one side of the car and for restoring the car to its original position upon completion of the unloading operations.

Figure 6 is an enlarged detail sectional View taken along line 6-6 of Figure 5.

Figure 6a is a similar view taken along line 6a6a of Figure 6.

Figure 7 is an enlarged sectional view taken along line 'i-'l of Figure 5.

Figures 8, 9 and 10 are. partial sections taken along lines 8B, 9-9 and Ill-10, respectively, of Figure 7. t

Figure 11 is a detail section taken along line ll-l| of Figure 10.

Figure 12 is a horizontal section through the car and is taken along line l2-l2 of Figure '7.

Figure 13 is an enlarged detail section taken along line l3-|3 of Figure 12.

Figures 14 and 15 are detail sections taken along lines l4--l4 and l5-l5, respectively, of Fi ure 7.

The apparatus is illustrated in connection with conventional receiving pit facilities, the latter being sufliciently indicated for the purpose in view by a showing of the chute l5 which the material enters upon being discharged from a car. The unloading of a car in accordance with the invention involves the lowering of the side of the car adjacent the receiving pit until the car assumes an angle of 18, more or less, with respect to. the. vertical. To this'end the inner rail l6. of the track, the rail adjacent the chute I5, includes short sections llfiaw-h'ich are so 10- i cated that. when a car comes to rest with its doorway located above and opposite the receiving pit the inner: wheels: of one truck will rest upon one of the said sections and the inner Wheels of the other truck will rest upon the other.

Each of the: rail sections Ilia is mounted upon a beam 1 1' which is. carried by the outer ends of a pair of arms I8; The. said. arms extend under a beam H! which carries the outer rail 20 of the track and have extensions 21 which are suspended upon trunnions 22, the latter being located on the farsi'de of the outer rail and being carried by angularly extending brackets 23. The rail sections 16a are normally supported in rectilinear arrangement with and between the fixed sections of the rail I6 by the legs 24 (Figures 3 and of U-shaped supports 25. The latter are supported for rocking movement upon shafts 26 which are mounted upon base plates 21 and carry laterally extending arms 28 to which the lower ends of operating levers 29 are connected.

The rail sections l6a may be lowered and elevated as required, assuming the supports cccupy positions in which the legs 24 are clear of the beams 11, by hydraulic jacks (Figure 5). Preferably a pair of such jacks is employed in connection with each of the rail sections, the pistons 33 of each pair of jacks beingpivotally connected to laterally extending lugs 3Ia at the opposite ends of the associated carrier beam while the cylinders 32 are pivotally connected to upwardly extending lugs at the opposite ends of the associated base plate 21. The jacks are operated by a pump 33 which is driven by a motor 34, the pump having four cylinders 35, one for each jack and each of which is connected by a fluid supply line 36 to a valve 31 and through the latter and a supply and exhaust line 38 to its respective jack. The intake side of each of the cylinders of the pump is connected to a common intake line 39 which leads to a reservoir 40. The movable element 4| (Figure 6) of the valve 3'. is cylindrical, is provided with a stem 42 (Figure 5) which carries a control handle 43, is formed with passages 44 and is adjustable to connect each of the supply lines 36 with one of the supply and exhaust lines 38. The movable element 4| is also adjustable so that the passages 44 connect each of the supply and exhaust lines to a by-pass duct 45 formed in an exhaust manifold 46, each of the said ducts communicating through a re-UI- stricted opening 47 and a transverse bore 48,

both of which are formed in a plug 49, with an outlet chamber 58 (Figure 6a). Fluid which enters the latter is discharged through an exhaust pipe 5| into the reservoir 48. i To lower the rail sections l6a the valve 3! is preferably initially adjusted to connect the

lines

36 and 38 and the pump 33 operated momentarily to insure that the jacks 38 are filled and to relieve pressure upon the supports 25 so that the" levers 29 may be readily operated to swing the legs 24 to one side of the carrier beams H, as indicated in dotted lines in Figure 3. The valve 31 may then be adjusted to connect the lines 38 to the by-pass ducts 45, and the actuating fluidrg is permitted to discharge from the jacks and return to the reservoir 45, the restricted openings 4? in the plugs 49 limiting the discharge of the fluid from the cylinders of the jacks so that the downward movement of the rail sections Hidwill not exceed a predetermined rate.

As the rail sections are lowered in the manner described the car is tilted, guard rail sections 52 preferably being employed in connection with the outer rail to limit sidewise movement of the wheels upon the rails during this operation. In accordance with the invention the movement of the car as it is tilted is utilized in the breaking in of the cooperage which closes the doorway of the car door. To this end a supporting framework 53 is mounted behind the chute l5 upon a base 54 which may, if desired, be in the form of a turntable. Stanchions 55 of the said framework have upper ends which are angularly inclined toward the car and carry a cross shaft 56 upon which a carriage 51 is mounted for rocking movement. The carriage 51 includes side frames 58, which are generally rectangular in shape, and carries a platen 59 having the outer face thereof studded with Spikes 59a. The platen 75 is attached to the carriage by links 60 which have pivotal connections with the frame members of the carriage and with the platen and which, therefore, are adapted to permit parallel movement of the platen toward and away from the carriage. The platen may be locked in any desired position by an arm 6! which is carried by the shaft 56 (Figures 7, 10 and 11) the outer end of the said arm being formed to provide a crosshead 62 having trunnion-like extensions which are slideable in guideways 63 and 64 formed in track members 64a which are mounted upon the back of the platen. The inner Wall of the guideway 64 is formed with teeth 65 which may be engaged by the outer end of a locking pin 66, the latter occupying a transverse bore in the crosshead. A slide 61 which occupies a longitudinally extending bore has a cam extension 68 formed on one end which is located between spaced projections 69 at one end of the pin. The opposite end of the slide is connected 'to a plunger 10, one end of which extends into, and axially of, a solenoid H. A spring 12 which is arranged around the outer end of the plunger normally acts against the latter to hold the slide 61 in its extended position, in which position the looking pin is caused to extend between two of the teeth 65. To release the crosshead it is only necessary to energize the solenoid II. The latter will thereupon retract the'slide 61 against the action of the-spring I2 and the cam extension will actuate the locking pin to withdraw it from between the engaged teeth. Upon release of the locking pin 66 a motor 13 (Figure 12)- may be energized to move the platen 59 to the desired position, the motor being of the gear-headed type and carrying and driving a winch 14. Acable 15 which is wound upon the drum of the latter has'one end 16 (Figure 7) which passes around a pulley 11 and is connected to an end flange 18 on the platen while the other end 19 of the cable passes over a freely rotatable sleeve on the cross shaft 56 and is connected to the platen between said end flange and the opposite end flange. The platen, therefore, may be adjusted as required by running the motor 13 in the proper direction, it being noted that the trunnion-like extensions of the crosshead 62 are slideable along the guideways 63 and 64 and at the same time permit relative angular movement between them and the platen.

Mechanism is provided for rocking the carriage 51 upon the shaft 56 from one position in which the platen is substantially vertical to a second position in which it is substantially horizontal. The said mechanism includes a gearheaded motor (Figures 7 and 12) which is mounted upon the back of a cross frame member 8| of the carriage, the driving gear 82 of the motor meshing with an idler gear 83 (also carried by the motor) and the gear 83 in turn meshing with a driven gear 84. The latter is fixed to a shaft 85 and meshes with a gear 86 which is fixed to a shaft 81. The gear 86 meshes with and drives a pinion 88 which is fixed to a shaft 89 (Figure 7). A bevele inion 90 (Figure 12) which is splined upon the outer end of the shaft 89 acts as a driver for a pinion 9| but is normally disengaged from the latter. It may be shifted into engagement with the pinion 9| by a lever 92 which is pivotally connected at its inner end to a side frame and at its outer end to the movable element of an electrical actuating unit 93.

The pinion BI is fixed to one end of a shaft 94 which is carried by a bearing block 95, the other end of the shaft94 carrying a worm 96 which meshes with a worm wheel 91. The latter is fixed to one end of a shaft 98 (Figure 5) which is mounted between the two side frames 58 and which carries two pinions 99, one of which meshes with a segmental gear rack I carried by the angular extension of one of the stanchions 55 and the other of which meshes with a similar gear rack IOI carried by the angular extension of the other stanchion.

When the apparatus is not in use the carriage 51 occupies an upright position with the platen 59 collapsed as indicated in dotted lines in Figure In such'position substantial clearance is provided between the platen and .any car which may be moved to, or past, the receiving pit. When a car has been moved to an unloading position, assuming the motor 80 to be energized, the actuating unit 93 is energized to engage the pinion 90 with the pinion 9| and the carriage is rocked upon the shaft 55 to advance the lower end of the platen toward the doorway of the car. At the same time, or incident to this operation, the solenoid II is energized to release the locking pin carried by the arm 6| and the motor I3 is energized to operate the winch I4, thereby to cause the platen 59 to swing downwardly and outwardly upon the links 59. The rocking movement of the carriage and the swinging movement of the platen are preferably simultaneous and are so controlled that the lower edge of the platen is caused to engage the lower edge of the cooperage I02 just above the sill of the car doorway. Thereupon the lever 92 is operated to disengage the pinion 90 from the pinion 9|; the motor I3 is deenergized to arrest the platen 59; and th solenoid II is deenergized to release the locking pin 66 and. permit it to engage the teeth 65 and lock the platen and carriage against relative movement.

(Figure 12) and the shovel 103a by cables I06 and I01. One end of the cable I04 is wound upon one end of a drum I08 which is mounted upon the shaft 85 while the opposite end is connected to the back of the shovel I03, the said cable intermediate its ends passing over a freely rotatable sleeve on the shaft 56, around a pulley I09 which is fixed to the carriage 51 and around apulley I I0 carried by a block III. The corresponding cable (I06) for the other shovel passes over a similar sleeve and around similar pulleys, one end being wound upon the opposite end of the drum I08 and the opposite end being connected to the back of the other shovel. The cable I05 is connected at one end to the front of the shovel I03, passes around a pulley I I2 and under a roller [2a (Fig- The carriage and platen are shown in the positions described in full lines in Figure 1. While occupying such positions the adjacent side of the car is lowered in the manner described. During this operation the platen 5i? enters the car through the doorway, as illustrated in Figure 2, to break in and push ahead of it the cooperage which is impaled upon the spikes 59a. The path of the platen is upward as well as inward Hence a substantial opening at the bottom of the doorway is provided through which the material in the car may discharge and as a result of which the pressure upon the back of the cooperage will be partially or wholly relieved.

After the cooperage has been broken in in the manner described the lever 92 is again actuated to engage the pinion 99 with the pinion 9| and the carriage 51 is rocked upon the shaft to the substantially horizontal position shown-in Figures 4 and 7, thereby carrying the cooperage into the top of the car and clearing the lower 4 part of the doorway. As the cooperage approaches the top of the car the locking pin 66 may be released to disconnect the arm 6| and the platen; and the winch I4 may be operated to collapse the platen upon the carriage. Maximum movement of the carriage toward the top of the car will thus be insured.

Shovels I03 and IBM are employed to convey to the doorway such of the material as is not automatically discharged byth breaking in of the cooperage and the tilting of the car, the

shovel I03 being operated by cables I04 and I05 toward the ends of the car.

ure 7) and is wound upon one end of a drum I I3 which is mounted upon the shaft 81. The cable I0! is similarly connected to the other shovel, passes around a pulley II 4 and under the roller ||2a and is wound upon the other end of the drum H3.

The drums I 08 and I I3 are freely mounted upon the shafts and 81, respectively, and each includes a'conventiona-l internal clutch for connecting it to its respective shaft, the clutch in each instance being controlled by an electrical actuating unit 5 (Figure 12). Hence the drum I08 may be connected to the shaft 85 to move the shovels from the ends of thecar toward the doorway whil the drum 3 may be connected to the shaft 81 to move the shovels from the doorway Preferably an electric brake ||6 (Figures 7 and 12) is employed in connection with each drum, the bands I I1 thereof fitting around central annular enlargements on the drums. When either of the drums is connected to its shaft the brake for the other drum may be operated to maintain the proper tension upon the cables.

A cab II8 (Figure 7 for the operator is provided at th end of the carriage which extends into the car, the cab preferably being closed and having a door and windows through which the operation of the shovels may be observed. Fresh air is forced into the cab by a fan I I9, the intake pipe I20 thereof carrying a filter I20a. for removing entrained dust. The invention contemplates the use of the fan I I9 to maintain a pressure in the cab slightly higher than atmospheric pressure. Entry into the cab of dust, odors or fumes will thus be prevented.

The operator may sit upona cushion IZI straddling a pair of levers I22 and I23,,one of which controls the drum clutches and the other of which controls the drum brakes. A platform I24 is also carried by the front wall of the cab upon which the operator may stand when the carriage is in an upright position, there being a control device |25 on the side wall of the cab for controlling the rocking movement of the carriage. A similar device |25a may b mounted upon the framework 53 for controlling such movement exteriorly of the cab.

The cable pulleys H2 and H4 are carried by the outer end of a boom I 26 which is formed with rearwardly diverging legs mm. Th terminal portions of the latter are pivotally connected to the opposite ends of a cross-piece I21 which is carried by a longitudinally extending, threaded shaft I28. A pinion I29 which is splined to the outer end of'the said shaft normally meshes with a pinion I30 which is fixed to the lower end of a vertical shaft |3| but may be disengaged by depressing a clutch pedal I32. The shaft I3I is v threaded and carries a cross-piece I33 to the opposite ends of which the inner ends of a pair of arms I34 are pivotally connected, the outer ends of the said arms being pivotally connected to the opposite sides of the outer end of the boom. The inner end of the shaft I28 (Figure 9) carries a pinion I35 with which either of two drive pinions I36 or I31 may be engaged, the said drive pinions being splined upon a shaft I38 and the latter also carrying a gear I39 which meshes with the gear 86. The pinions I36 and I31 are connected by a shifting mechanism including a bar I40, a crank MI and a link I42, one arm of the crank being connected by a rod I43 to a lever I44 which-is located within the cab I I8 within convenient reach of the operator.

It will thus be apparent that the lever I44 may be operated to shift either of the pinions I36 or I31 into engagement with the pinion I35 to drive the shaft I23 in either direction and that the clutch pedal I32 may be operated to disengage the pinion I23 (Figure 7) from the pinion I33. The boom I25, therefore, maybe adjusted, at will, to advance, withdraw, elevate or lower the pulleys I l2 and I I4. In this manner the shovels may be caused to traverse paths best adapted to expedite the unloading of the car.

The paths traversed by the shovels are, of course, also dependent to a certain degree upon the location of the pulley blocks III. trated, the latter are supported in the ends of the car by spreaders I45 (Figure 12) which are formed or provided with spaced eyes I43 through which the hooks of the pulley blocks 'may be inserted. Each spreader comprises opposed sec-;

tions I41 and I48, each of which has a triangularly-shaped foot I49. The shank of the section I48 is tubular and the end thereof is forked, as shown in Figure 13, and is pivotally connected by a pin I55 to one end ofa rod I5I. end of the rod is adjustable to various positions within a tube I52 and is formed with a transverse bore I53 which may be aligned with openings I54 formed in the tube. The parts may thus be locked in various positions of adjustment by a removable pin I55. The latter also passes through aligned openings in the end of a sleeve I55 which is slideable over the shank of the section I43 and the adjacent end of the tube I52. The opposite end of the tube I52 is formed to provide a plunger r E51 and is accommodated within a cylinder I58 which is carried by the shank of the section I41. Pressure may be applied to the plunger I51 by a hydraulic jack I59, the-cylinder I55 of the jack being carried by the cylinder I58 and the operating handle I5I being pivotally connected to the shank of the section I41.

In mounting the spreaders in the ends of the car the pin I55 is removed and the sections 341 and I48 are separated to cause the feet M9 to engage the side walls of the car at'the proper height and at the same time align the bore I 53 with the closest pair of openings I54 in the tube I52, the plunger I51 being caused to enter the cylinder I58 to its innermost limit. The sleeve I55 is then adjusted so that the openings in its end are aligned with the aligned openings in the tube and rod and the pin I55 is inserted. The hydraulic .jack I59 is then operated to further expand the As illus- The opposite"- paratus'any pull applied to the spreaders by the cables which operate the shovels will cause the toe portions of the feet I49 to exert a greater pressure against the walls of the car. Such pull, therefore, tends to cause the Spreader to engage thecar walls'rmore firmly. In order to increase the'friction' between the spreaders and the walls of the car 'a sole I62 of rubber or any other suit- 'tions may be then collapsed toward one another,

the pin I50 providing a'joint for this purpose. A spreader and a shovel may thereupon be supported or suspended in any suitable manner from each side of the carriage and after the slack cable has been taken up, the carriage may be withdrawn from the car in the manner described, the marginal edges of'the cooperage being engaged by the side posts of the doorway during this operation and the cooperage being stripped from the spikes on the platen and falling into the bottom of the car. V

The valve 31 may then be adjusted to connect the

lines

36 and 38 and the pump 33 operated to restore the car to its original position, the supports 25 being rocked upon the completion of this operation to move the legs thereof under the rail sections I5a.- The use of a pump having a separate cylinder for each of the jacks 30 has the advan-' tage that substantially the same amount of actuating fluid is deli'veredto each of them. Hence the rail sections Ilia will be elevated at he same speed. A further advantage obtained is that the crank-shaft may be formed, as illustrated, so that the working strokes of the pistons occur one after the other. The power required to operate the pump is thus much less than would otherwise be required if the working strokes of two or more of the pistons occurred simultaneously. The apparatus has the advantage that it may be readily adapted to existing track and receiving pit facilities and in instances wherein such facilities include double tracks the base 54 may be revolved so that both tracks may be serviced by the carriage.

' Although the apparatus illustrated includes means for breaking in the cooperage closing the doorway of a car, it is to be understood that the apparatus may also be employed to advantage in connection with the unloading of cars having sliding or other types of doors which may be readily opened and cars which it may be impossible or undesirable to tilt in the manner described.

I claim as my invention:

1. Apparatus for unloading bulk material from a car through a doorway in the side thereof including a carriage mounted for privotal movement about a horizontal axis, one section of said carriage providing a cab for an operator, drive mechanism carried by said carriage, said carriage having a normal upright position in which it is located at one side of and clear of said car, means for rocking said carriage about said axis to cause said section to enter the car through said doorway, and means under the control of said operator and actuated by said drive mechanism for conveying the material in the car to said doorway.

2. Apparatus for unloading bulk material from a car through a doorway in the side thereof including a carriage mounted for pivotal movement about a horizontal axis, said carriage having a plenum compartment which provides a cab for an operator and having a normal upright may be observed by said operator through said windows and which is actuated by said drive mechanism for conveying the material in the car to said doorway.

3. Apparatus for unloading bulk material from a car having a doorway closed by cooperage, said apparatus including a carriage pivotally mounted for movement about a horizontal axis and having a normal upright position in which it is located at one side of and clear of said car, the lower part of said carriage being formed to provide a cab for an operator, driving mechanism carried by said carriage which is under the control of said operator, means for rocking said carriage toward said cooperage and for holding it in the position to which it is moved, means for lowering one side of the car while said carriage is so held to cause said carriage to enter said doorway and break in said cooperage, said first named means being thereafter operative to rock said carriage further in the same direction to move said. cab into said car and to move said cooperage to and support it in, an elevated position over said cab, and means actuated by said mechanism and which may be observed from said cab for conveying the material to said doorway.

4. Apparatus for unloading bulk material from a car having a doorway closed by cooperage, said apparatus including a carriage pivotally mounted for movement about a horizontal axis and having a normal upright position in which it is located at one side of and clear of said car, driving mechanism carried by said carriage, means for rocking said carriage toward said cooperage and for holding it in the position to which it is moved, means for lowering one side of said car while said carriage is so held to cause said carriage to enter said doorway and break in said cooperage, said first named means being thereafter operative to rock said carriage iurther in the same direction to move said cooperage to, and support it in, an elevated position in the car. and means within the car which is driven by said mechanism for conveying the material to said doorway.

5. Apparatus for unloading bulk material from a car having a doorway closed by cooperage, said apparatus including a carriage pivotally mounted for movement about a horizontal aXis and having a normal upright position in which it is located at one side of and clear of said car, driving mechanism carried by said carriage, means including said driving mechanism for rocking said carriage toward said cooperage, and for holding it in the position to which it is moved, means for lowering one side of said car while said carriage is so held to cause said carriage to enter said doorway and break in said cooperage, said first named means being thereafter operative to rock said carriage further in the same direction to move said cooper-age to, and support it in, an elevated position in the car, and means within the car which is driven by said mechanism for conveying the material to said doorway.

6. Apparatus for unloading bulk material from a car having a doorway closed by cooperage, said apparatus including a carriage pivotally mounted for movement about a horizontal axis and having a normal upright position. in which it is located at one side of and clear of said car, driving mechanismcarried by said carriage, an adjustable platen mounted on said carriage, means for rocking said carriage to advance it toward said car, means for extending said platen'against said cooperage and for holding it in such position, means for lowering one side of said car to cause said platen to enter said doorway and break in said cooperage, said first named means being thereafter operative to rock said carriage further in the same direction to move said cooperage to, and support it in, an elevated position in the car, and means within the car which is actuated by said mechanism for conveying the material to said doorway.

'7. Apparatus for unloading bulk material from a carhaving a doorway closed by cooperage, said apparatus including a carriage pivotally mounted for movement about a horizontal axis and having a normal upright position in which it is located at one side of and clear of said car, driving mechanism carried by said carriage, an adjustable platen mounted on said carriage, means for rocking said carriage to advance it toward said car, means for extending said platen i against said cooperage and for holding it in such position, means for lowering one side of said car to cause said platen to enter said doorway and break in said cooperage, said first named means being thereafter operative to rock said carriage further in the same direction to move the cooperage to, and support it in, an elevated position in the car, said platen being collapsible to permit maximum travel of the carriage toward the top of the car, and means within the car which is driven by said mechanism for conveying the material to said doorway. v

8. Apparatus for unloading bulk material from a car having a doorway closed by cooperage, said apparatus including a carriage pivotally mounted for movement about a horizontal axis and having a normal upright position in which it is located at one side of and clear of said car, driving mechanism carried by said carriage, means for rocking said carriage to advance it toward said cooperage and for holding it in the position to which it is moved, means for lowering one side of said car while said carriage is so held to cause said carriage to enter said doorway and break in said cooperage, said first named means being thereafter operative to rock said carriage further in the same direction to move said cooperage to, and support it in, an elevated position in the car, a shovel, and a cable connecting said shovel and driving mechanism and by which the shovel is moved back and forth lengthwise of the car to convey the material to said doorway.

9. Apparatus for unloading bulk material from a car through a doorway in the side thereof including a carriage mounted for pivotal movement about a horizontal axis and having a normal upright position in which it is located at one side of and clear of said car, drive mechanism carried by said carriage, means including said drive mechanism for rocking said carriage about said axis to advance it into the car through said doorway, a shovel, a cable for connecting said shovel and drive mechanism and by which the shovel is moved back and forth lengthwise of the car to move the material to said doorway, a leg extending from said carriage, a pulley carried 'by said leg around which said cable is caused to pass, the location or said pulley determining thepath traversed by said shovel, and means for adjusting said leg with relation to said carriage to change said path.

10. Apparatus for unloading bulk material from a car having a doorway closed by cooperage, said apparatus including a carriage pivotally mounted for movement about a horizontal axis and having upright position in which it is located at one side of and clear of said car, drive mechanisms carried by said carriage, means for rocking said carriage toward said cooperage and for holding it in the. position to which it is moved, means for lowering one side of said car while said carriage is so held to cause said carriage to enter said doorway and break in said cooperage, said first named means being thereafter operative to rock said carriage further in the same direction to move said cooperage to, and support it in, an elevated position in the car, a shovel, a cable connecting said shovel and drive mechanism and by which the shovel is moved back and forth lengthwise of the car to convey the material to said doorway, a leg extending from said carriage, a pulley carried by said leg and around which said cable is caused to pass, the location of said pulley determining the path traversed by said shovel, and means for adjusting said leg to change said path.

11. Apparatus for unloading bulk material from a car having a doorway closed by cooperage, said apparatus including a carriage pivotally mounted for movement about a horizontal axis and having a normal upright position in which it is located at one side of and clear of said car, drive mechanism carried by said carriage, an adjustable platen mounted on said carriage, means for rocking said carriage to advance it toward said car, means for extending said platen against said cooperage and for holding it in such position, means for lowering one side of said car to cause said platen to enter said doorway and break in said cooperage, said first named means being thereafter operative to rock said carriage further in the same direction to move said cooperage to, and support it in, an elevated position in the car, said platen being collapsible to permit maximum travel of the carriage toward the top of the car, a shovel, a cable connecting said shovel and drive mechanism and by which the shovel is moved back and forth lengthwise of the car to convey the material to said doorway, a leg extending from said carriage, a pulley carried by said leg and around which said cable is caused to pass, the location of said pulley determining the path traversed by said shovel, and means for adjusting said leg to vary the path of said shovel.

12. Apparatus for unloading bulk material from a car having a doorway closed by cooperage, said apparatus including a carriage mounted for pivotal movement about a horizontal axis and having a normal upright position in which it is located at one side of and clear of said car, drive mechanism carried by said carriage, means for rocking said carriage to advance it to a position in close proximity to said cooperage and for holding said carriage in said last named position, means for lowering one side of said car while said carriage is so held to cause the latter to enter said doorway and break in said cooper-- age, said first named means being thereafter operative to' rock said carriage further in the same direction to move said cooperage to, and support it in, an elevated position in the car, a shovel, a cable connecting said shovel and drive mechanism and by which the shovel is moved back and forth lengthwise of the car to convey the material to said doorway, a'leg extending from said carriage, a pulley carried by the inner end of said leg and around which said cable is caused-to pass, the location of said pulley determining the path traversed by said shovel, and means for advancing and retracting said leg and for elevating and lowering the outer end thereof.

13. Apparatus for unloading bulk material from a car through a door in the side thereof including a carriage pivotally mounted for movement about a horizontal axis and having one section which provides a cab for an operator, said carriage having a normal upright position in which it is located at one side of and clear of said car, drive mechanism carried by said carriage and under the control of said operator, an adjustable platen mounted on said carriage, means for rocking said carriage to advance it toward said car, means for extending said platen against said cooperage, means for lowering one side of said car while said carriage and platen are held in the positions described to cause said platen to enter said doorway and break in said cooperage, said first named means being thereafter operative to rock said carriage further in the same direction to move said cab into said car and to move said cooperage to, and support it in. an elevated position over said cab, and means actuated by said mechanism and which may be observed by said operator for conveying the material to said doorway.

14. Apparatus for unloading bulk material from a car through a door in the side thereof including a carriage mounted for pivotal movement about a horizontal axis and having one section which provides a cab for an operator, said carriage having a normal upright position in which it is located at one side of and clear of said car, drive mechanism carried by said carriage and under the control of said operator, an adjustable platen mounted on said carriage, means for rocking said carriage to advance it toward said car, means for extending said platen against said cooperage, means for lowering one side of said car while said carriage and platen are held in the positions described to cause said platen to enter said doorway and break in said cooperage, said first named means being thereafter operative to rock said carriage further in the same direction to move said cab into said car and to move said cooperage to, and support it in, an elevated position over said cab, a shovel, a cable connecting said shovel and drive mechanism and by which the shovel is moved back and forth lengthwise of the car within view of said operator to convey the material to said doorway, a leg extending from said carriage, a pulley carried by said leg and around which said cable is caused to pass, the location of said pulley determining the path traversed by said shovel, and means for adjusting the position of said leg to change said path.

EDWARD E. FRAUENHEIM, JR.