US1286593A - Dump-car. - Google Patents

Description

F. S. INGOLDSBY & H. T. GIBBARD.

" DUMP CAR.

' APPLICATION man NOV. 22. 19 1,286,593.

Patented Dec. 3, 1918.

3 SHEETS-SHEET 2.

. 772/727 K7 Janus t F, S. INGOLDSBY & H. T. GIBBARD.

DUMP'CAR.

- APPLICATION FILED NOV- 2?. I916.

' Patented Dec. 3, 1918.

3 SHEETSSHEET 3.

Juenfars gage these teeth.

UNITED STATES PATENT OFFICE.

FRANK S. INGOLDSBY, OF PINE LAKE, AND HENRY T. GIBBARID, OF HIGHLAND PARK, MICHIGAN, ASSIGNORS TO THE INGOLDSBY AUTOMATIC CAR COMPANY, OF CLEVE LAND, OHIO, A CORPORATION OF WEST VIRGINIA.

DUMP- CAR.

Specification of Letters Patent.

Patented Dec. 3. 1918.

To all 1r]: 0m it may concern:

Be it known that we. Fnaxn S. Ixoonnsnr and Ilnxnv T. (henna). citizens of the l nited States. residing at Pine Lake and llighland lark. respectively. in the counties of. ()akland and \l'ayne. respectively, and State of Michigan. have invented a certain new and useful improvement in Dump- Cars. of which the following is a full, clear, and exact description. reference being had to the accompanying drawings.

lrior latent No. 1.013.552 issued January 2. 15112. to The Iugoldsby Automatic Car Company. as assignee. of Frank S. Ingoldsby. shows and claims a combined loeking and raising mechanism for dump cars, so arranged that oscillations of a lever,- which in final position locks the doors, may serve to raise them. The invention is there shown as embodied in a car of the lngoldsby type. wherein a load-supporting door has projecting floor beams which may be engaged by hooks on the sides of the car to hold it in closed position. the. hooks on the two sides being operated by two levers respectively. To raise the doors a longitudinal bodily-movable bar is provided on each side, which is connected by flexible members with the door and has teeth which may be engaged I a pawl carried by an extension I of the main locking le\er. A suitable detent pawl is also provided. which may enlhus oscillations of the main lever may serve to gradually move the longitudinal bar and pull up on the flexible members to close the door.

The present invention is in the nature of an improvement on the structure shown in the prior patent referred to. and is also in som ways an improvement on the structure shown in application #HSJBT. of Frank S. lngoldsby. tiled October 16, 1910. The present invention includes a very simple and ettective automatic release for the pawls, when the doors are finally locked. to insure the pawl being out of engagement with the longitudinally-movable bar when the doors are locked. This mechanism includes also an effective form for these pawls. Another feature of the invention is a very compact and satisfactory system of guides for the chains between the longitudinal bar and the door, including the nesting of one chain guiding pulley within the flanges of the other guiding pulley. which also supports the bar. and including also an ettective form of guard and guide which reinforces the lower chord where the chain passes through it, and guides the chain as it bends from the vertical to a diagonal" direction when the door drops. These features will be hereinafter more fully explained, and the essential characteristics summarized in the claims.

In the drawings. Figure 1 is a side eleeation of a portion of a car embodying our invention: Fig. 2 is a'transverse section. of a portion of such car: Fig. is an enlarged transverse sectional view on the line 3-3 of Fig. 1: Fig. l is a sectional end view of a portion of the -ar. showing the pawl releasing mechanism; Fig. 5 is a fragmentary plan 01'' parts shown in Fig. t; Fig. (3 is a horizontal section through a portion of the car side. just above the lower chord. illustrating the chain guide in dotted lines. the hook attached to the side of the car being omitted for clearness of illustration. Fig. 7 is a vertical transverse section through a portion of the car side and door at the raising chain; Fig. 8 is a vertical section through the raising ba and the supporting and chain guiding pulley; Fig. 9 is a transverse section on a horizontal plane through the supporting and chain guiding pulley; Fig. 10 is a plan oi a portion of the operating bar and chain where they pass through the stitt'ener; Fig. 11 is a perspective of the operating parts of the rack and pawl mechanism shown in Fig. 1.

\Ve will first describe the general construction and operation of the device and then take up the particular features with which this invention is concerned.

In the drawings. 12 represents the side of a car which is shown with a plate girder having an upper chord 13. a lower chord 1 t,

. against the lower chord 1t) and at the same time hold the side of the car ward bulging. I

To hold the booking levers 30 in their locked position, as well as to release them against outas a unit. they are all pivoted at their upper ends to a longitudinal link which is connected at its end toan intermediate link 36 pivoted to the main op uating lever 40. This lever is shownas pivoted at 41 to the side, of the car, which i.' suitably reinforced at this point. The moeement of the lever 40 is limited by the. guide iron shown as extending alongside of the path of movement of the lever andsecured at one end to the car side and at the other to an inclined end strut 47.

To raise the doors the bodily-movable longitudinal bar is provided, to which are anchored the upper ends of the chains 51, which extend over pulleys and thence downwardly, passing through openings in the lower chord and being secured at their lower ends to the doors. The longitudinal bar is provided with ratchet teeth (30 on its upper face, with which coacts a pawl 61 pivoted at 62 to a lower extension of the main operating lever. A detent pawl 64 extends transversely of the end of the car and stands above the teeth (30 of the longitudinal bar and is adapted to engage them and hold the gain made by the feeding pawl 61. v

In operating the mechanism so far described, if the doors are down the chains will have drawn the longitudinal bar to ward the right, from the position shown in Fig. 1. Now oscillations of the main lever 4O,v by reason of the pawl 61 and the detent pawl 64, will move the longitudinal bar to the left, or toward the end of the canthus drawing upon the chains and raising the door. The last forward movement of the lever brings the door practically home, and the final backward movement swings the hooks 30 beneath the floor beams, whereby the doors are locked shut and the strain is taken off the raising mechanism. We will now describe the arrangement of guides shown for each chain, connecting the operating bar with the door. As shown the operating bar consists of a pair oftlat strips side by side and spaced apart but secured rigidly to each other by suitable rivets and distance pieces 56. The slotbetween the side members of this bar is sutli'cicnt to easily accommodate those links of the chain which stand vertically, whereas the horizontal links lie beneath and in contact with the bottom faces of the two strips. The guide pulley over which the chain is shownas extending. has a peripheral groove 53 to receive the links presented edge-wise, and cylindrical surfaces 54. to receive the" links presented tlat wise. Outside of these cylindrical surfaces the pulley has two ex tended peripheral flanges 57 which extend beyond the flat-wise links 'and overlap the sides of the bar 50. This pulley supports the bar. being positioned so that the highest point of its cylindrical surface is below the desired portion of the bar by an amount equal to the thickness of the chain.

To hold the chain effectively against the pulley}! and also to support the chain if the. upper end thereof is carried beyond the pulley. we provide. the'pulley 70, which has a peripheral groove 71 to receive the edge wise links, and cylindrical surfaces 72 for the flat wise, links. but has no flanges, this pulley being positioned to extend between the flanges 57 of the pulley The peripheral grooves of the two pulleys, it will be seen, coact to effectively guide those links of the chain which lie in a plane parallel with the car side, while the cylindrical sur faces of the pulleys eoact to guide the other. links. The pulley 70 is positioned such dis tance below the bar that the space. between its cylindrical surfaces and the bottom of the bar corresponds to the thickness of the chain links, and thus this pulley may support the chain and bar if momentum carries the upper end of. the chain across the pulley 70. If the bar and chain pass through a stiffener. 18, as illustrated in Figs. 1 and 10, the stiffenermay be'i'e'inforced by an additional strip ltl rivetcd to it, as shown.

To effectively secure the pulleys 52 and 70 to the car side, without. causing undue projection thereat, We provide studs 80 and 81 (as shown in Fig. 9), which extend through a reinforcing bar 82 on the inner face of the car side 12, and thence outwardly through bearing sleeves 84 and 85, on whic the pulleys 52 and 70 aremounted These pulleys are ,provided in their outer faces, with recesses 58 and 74 respectively, and in these recesses are fastening devices on the studs 80 and 81, the fastening devices shown comprising washers 86 and 87 overhanging screwed onto the studs and clamping the washers against the ends of the bearing sleeves. The construction described makes a very effective, firm and compact guiding bar.

The chain 51 depends vertically from the the respective pulleys. and nuts 88 and 89,

and supporting device for the chain and the space between the supporting and guiding pulleys. and passes through the lower chord and is anchored at its lower end to the door. There is shown (Figs. (3 and 7) a round hole 16, through the, lower chord, where the chain passes. The lowermost member of the chain is in the form of an eye 5!). the shank of which passes through a member 28. and is secured thereto by a nut. These attaching members 28 are shown as secured to the lower side of the door and projecting from its edge.

- To effectively guide the chain as it bends from the vertical to the diagonal position at the lower chord, when the door drops. we provide a stirrup 90, shown in Figs. 3. (i and 7. This stirrup is a flat strip, the intermediate portion of which is twisted at something more than a right angle to the end portions, and is curved in two directions. That is tosay. in horizontal planes the intermediate portion is concave, to lie around the inner portion of the round hole 16; in

vertical planes the intermediate portion is convex on the outer face, to provide an ellicient rub plate for the chain. This stirrup is. secured to the lower chord, preferably by rivets 91. as shown in Fig. 6. This simple device reinforces the chord at the opening, prevents wea at the inner edge of the opening, and provides an effective. guide for the chain. It occupies small space beneath the chord and requires little recessing at the outer edge of the door 27 We will now describe the particula' arrangement of pawls shown for controlling the raising bar, and the device for throwing these pawls to idle position when the .ihar is finally locked, this construction being shown in Figs. 1, 4 and 5.

The pawl (5% is pivoted -at (55, and thus has its outermost portion adapted to drop by gravity into engagement with the teeth 60 of the longitudinal bar. The pawl (51 has a tail extending across the pawl (54 so that when the pawl (His raised to clear the teeth it automatically raises the pawl 61 out of engagement.

Now during the raising operation, the parts are as shown in Fig. 4. both pawls by gravity engaging the teeth. Accordingly, the oscillation of the lever 40 may gradually move. the bar 50 toward the end of the car and raise the door. \Vhcn the car is finally locked it is desirable to automatically maintain the pawls out of engagement with the teeth 60, so that no undue strain can be thrown on these parts when the doors are dropped. It is customary to provide Ingoldsby cars with a lockingdog, illustrated at 100 in Figs. 1 and 4. This dog is pivoted to a bracket 101 on the end strut 47 and is adapted to he turned in frontot the locking level-against a shoulder (which may be provided by the guide irons when the lever is in locked position. The dog has an extension 103 which we connect by a chain 105 with the pawl 64. between its pivot and its engaging time. Now whom the dog isturned from the position sholvn in full lines in Fig. 4. to that shown in d 'iticdlines. to lock the main lever. the chainl it? raises the pawl (34 into the position shown in dotted lines. where it clears the teeth of the bar 50. The pawl (ilengages the tail of the pawl (31. and raises it clear oi the lzar. .-\.ccordingly. the mere turn of the bar lock 100 into active position (which is always doiu as soon as the doors are. raised an d locked).

automatically carries the pawls td idle position. I j j \Ve also provide a gravity latchl 10 pi votally mounted at the end of the can and adapted to swing by gravity over the top of the inner end (38 of the pawl iii, when the latter is raised to idle position. The active or engaged position of the pawl and the corresponding disengaged inactive position of the gravity latch are shown in full lines in Fig. l. The inactive position of the pawl appears in dotted lines in this view. and dotted lines also show the gravity latch in the active position it then occupies to hold the pawl elevated. A suitable stop 111 limits the movement of the gravity latch. The engagement of the gravity latch at once relieves. the bar lock 100 of any tendency t be pulled back from its locked position. lt also holds the pawl in idle position when the bar lock is turned back by hand to release the load.

it results from the above described nicchanism that as soon as the doors are raised and locked. and the locking lever itself locked. the-pawls become automatically disengaged and the car is ready for dropping the doors whenever desired. \Vhcn the doors are to be dropped the bar lock is turned back to the position shown in full lines. but the gravity latch retains the pawls in an clcvated position, so that when the doors drop the bar 50 is carried freely forward. \Vhen it is desired to close the doors it is only necessary for the operator to kick out the gravity latch 110. allowing the weighted outer end of the pawl l'l' to carry it downwardly into engagement with the teeth oi the bar 50. this same movcmcn. allowing the feeding pawl 61 to drop into active position. Then the oscillations of the main lcvcr operate to raise the door. as hereinafter explained.

Fig. 1 shows the. pawl 1 formed in a special manner. with a series oi curves. This pawl preferably rides over a laterally eX- tending finger 123 rigid on the pawl 64, and this finger is accurately positioned by bending or turning to coact with the pawl 61 and cause it to engage or clear the teem at the proper time. The concavity 120 at active position when the car is locked, and

while the main lever is traveling forward to unlock the door and dump the load. The extreme extension 122 of the pawl is providcd to give it suflicientgravity and still cause it to clear the rest of the mechanism.

In the particular form illustrated it is proposed to move the longitudinal bar by oscillations which feed it a maximum of two teeth at a time, and the teeth are so arranged that on the last maximum movement onehalf of the travel oi the feeding pawl is idling while the levers 2-50 are moving out of the way. and as the latter continue to move still farther out of the way the feeding pawl moves the bar and thus raises the floorv beams of the door from immediately below to immediately above the end 32 of said levers 30. and this end rotating on the axis 31 acts as a wedge to lift the door into a tight joint and at the same time release the strain on the chain. bar and pawl.

Having thus described our invention, what we claim is:

1. In a dump car, the combination with. a dumping door, of door closing mechanism including a pawl tending to move to active position, door locking mechanism, means operated thereby for positively moving said pawl to idle position, and an automatic latch for holding it in idle position.

2. In a dump car, the combination of a dumpingdoor, door raising mechanism including an actuating device therefor, door locking mechanism. means whereby the looking of the-door automatically and positively moves a part ofth'e actuating device to disconnect it from the rest of the raising mechanism, part tending to return to engaging position, and a latch for holding said part disconnected.

3. In'a dump car. the combination with a dumping door. of door closing mechanism including a pawl tending to move to active position, doorlocking mechanism, means operated thereby for moving said pawl to idle position. and a latch for holding the pawl in this idle position when the door is unlocked.

4. In adump car, thecombination of a dumping door, raising mechanism therefor inchiding a gravity pawl, door, l()(.l l1 1g111GCl1- anis'm including a movable lock, connect i'n'g mechanism between said pawl and lock wherebythe movement of the lock to active position raises the pawl to inactive position, and a latch for holding the raised pawl.

5. In a dump car, the combination of a dumping door, door closing mechanism including a pawl tending to move to active position, hooks for holding the door closed, a main lever connected with said hooks, a a movable locking dog for the main lever, and connecting mechanism between the dog and the pawl.

6. In a dump car, the combination of a dumping'door, door closing mechanism including a gravity pawl. hooks for holding the door closed, a main lever connected with said books, a movable locking dog for the main lever, connecting mechanism between the dog and the pawl adapted to raise the pawl to idle position when the locking memher is turned to active position, and a gravity latch for holding thepawl raised.

7. In a dump car, the combination of a dumping door, a longitudinally movable bar connected with the door, wherebymovement of the bar. may raise the door, said bar having teeth, a pawl adapted to engage said teeth to hold the bar, a locking device for the closed door, and a connection between the same and said pawl whereby the operation of the locking device may raise the pawl to inactive position. and a latch for the pawl when inactive.

8. Ina dump car. the combination of a dumping door, a longitudinally movable bar, a flexible connection between the bar and door, locking hooks and a main locking lever connected therewith for holding the door closed, a locking device for said lever. a pa for holding the bar, connecting mechanism between the locking device and pawl enabling the locking device when operated to automatically move the pawl to inactive position. and a latch for the pawl when in this position. i

9. In a dump car. the combination with a dumping door, of door raising mechanism including a pawl having a tendency to assume active position. door locking mechanism, a locking device for the last mentioned mechanism, and a flexible connection between said device and the pawl whereby the movement of said device into locking position positively moves the pawl to inactive position.

10. In a dump car. the combination with a. dumping door, of door raising mechanism incliuling a gravity pawl tending to assume active position, door locking mechanism, a. movable locking device for the last mentioned mechanism. and a flexible connection anchored at one end to said device and at the other end to the pawl, whereby the movement of said device into locking position raises the pawl to inactive position.

11. In a dump car, the coml frination with a dumping door. of door raising mechanism including a pawl having a gravity tendency to assun e active position, door locking mechmechanism, a flexible connection between said device and the pawl whert 3y the swinging of said device into locking position raises the pawl to inactive position, and a latch adapted to automatically engage and hold the pawl when moved to inactive posit1on.

12. In a dump car, the combination with a dumping door, of door raising mechanism be overlapped including a gravity pawl having a tendency to assume active position, door locking mechanism including a locking lever, a pivoted locking member for said lever, a flexible connection anchored at its ends to said locking member and pawls respectively, whereby the swinging of said member into locking position raises the pawl to inactive position, and a gravity latch adapted to automatically engage and hold the pawl when moved to inactive position.

13. In a dump car, the combination of a dumping door, door closing mechanism comprising a movable member and a flexible connection between the same and the door, and a pair of coacting pulleys between which said flexible connection passes, one of said pulleys having a peripheral flange overlapping the other pulley.

14. In a dump car, the combination of a dumping door, door closing mechanism comprising a longitudinally movable bar and a flexible connection between the same and the door, a pair of coacting pulleys between which said flexible connection passes, one 0 said pulleys having peripheral flanges and the other pulley extending. between said flanges.

15. In a dump car, the combination of a dumping door, a movable bar, a chain connected to the door and bar, a pulley over which the chain passes and which is provided with a recess for the linkspresented edgewise and a supporting portion for the links presented flatwise, and a pro]ecting flange, and coacting pulleys positioned to by said flange and having a the links presented edgewise and for the links presented recess for a supporting portion flat-wise.

16. In a dump car, the combination of a dumping'door, a movable bar, a chain connected to the door and bar, a pulley over which the chain passes and which is provided with a peripheral groove for the links presented edgewise and a c 'lindrical portion for the links presented flatwise, and projecting flanges, and a coacting pulley extending between said flanges and having a for. the links presentedcylindrical portion for the peripheral groove edgewise and a links presented flatwi'ser 17; In a dump car, the combination with a dumping door, of a movable bar, a flexible member connected to the door and bar, a pulley located adjacent the bar and having extending along its the flexible member passing across it, said pulley having a peripheral flange extending across the flexible member and overlapping the bar, and a coacting pulley which said flange also overlaps.

I 18. In a dump car, the combination with a dumping door, oi.' a movable bar, a chain connected to the door and bar, a pulley located adjacent the bar and having the chain passing across it, said pulley having peripheral flanges extending across the chain and overlapping the bar on opposite sides, and a coacting pulley which extends be tween said flanges.

19. In a dump car, the combination with a dumping door, of a longitudinally movable bar, a chain anchored at one end to the bar and-the other to the door, said chain extending for a distance along the under side of the bar, a guide pulley across which the chain then passes, said pulley having a peripheral groove to receive the links presented edgewise and having supporting portions to receive the links presented fiatwise, the highest point of said portions being a distance below the bar substantially equal to the thickness of the chain, whereby the supporting portions may support both the chain and bar, and peripheral flanges on said pulley which extend across the chain and overlap the bar, and a guide pulley extending between said flanges and coacting with said chain.

20. In a dump car, the combination with a car side and a dumping door, of a pair of pulleys journaled on the car side, one of said pulleys having a pair of peripheral flanges and the other pulley extending into the space between said flanges, a movable bar guided on the side of the car and standing between the uppermost portions of said flanges, and a chain anchored to the bar and under side and passing between the flanges then through the guiding space between two pulleys and having its lower end connected to the door.

21. In a dump car, the combination with a dumping door, of a longitudinally movable bar having a'vertical slot in it extending lengthwise thereof, a chain having its end link extending into said slot and there secured, said chain extending along the under side of the bar with the vertical links extending into the slot and the horizontal links engaging the lower edges of the bar, a pulley across which the chain then passes to the door, said pulley being recessed to receive the'links presented cdgewise and having a portion to support the links presented flatwise and having peripheral flanges extending beyondthe flatwise links and overlapping the bar on its outer sides, and a eooperating pulley mounted on a parallel axis and extending into the space between the flanges.

' ley guiding the flexible member and having mounted on a parallel axis and extending portions adapted to support it and the bar, the highest" point of said supporting portions of the cooperating pulley being sub-' .stantially the same distancebelow the bar as the supporting portions of the first mentioned pulley.

.23. In a dump ear, the combination with a dumping door, of a longitudinally mov able bar having a vertical slot in it extending lengthwise thereof, a chain anchored to the bar and lying partly along the under side of the bar with the vertical links extending into the slot and-the horizontal links engaging the lower edges of 'the bar, a v pulley across which the chain then passes to the door said pulleybein'g recessed to receive the links presented-cdgewise an'd hav ing a' portion to support the links presented fiatwise and having peripheral flanges extending beyond the-flatwise links and overlapping the bar, and'a cooperating pulley into the space between the flanges, said cooperating pulley being recessed to receive the links presented edgewise and having a portion to coact with the links presented tlatwise, the highest, point of said support-- ing portion being substantially the same distance below the bar as the supporting portion of the first mentioned pulley.

24. In a dump ear, the combination with a dumping door and car side, ol :1 pair of pulleys, one provided with peripheral flanges and the other llangeless, the flangeless pulley extending between the flanges 01 the other pulley, a pair of outwardly extending parallel studs'carried by the car side and forming bearings for the pulleys, one or ,both of said mlle s havin a recess on its outer face occupied by a fastening device on the outer end of the stud, an operating device, and a llexible member ct-muected therewith inpassing bet ween the pulleys to the door.

25: In a dmnp car, the combination with a car body, of a dumping door, astud carried by the car body and projecting outwardly, a sleeve on said stud, a pulley journaled on said sleeve, said pulley having a recess in its outer face, a fastening device on the outer end of the stud clamping the bear ing sleeve and overlapping the pulley in the recess, an operating device. and a llexible car side having an outstanding flange. a

dumping door, a flexible member for clos: ing the door extending through an opening in said flange and secured to the door, and

a rub-plate secured on the under side of the flange and extending on the inner side of the opening.

28. In a dump ear, the combination of a car side having a llange with an opening to it, a dumping door, a flexible raising member extending through said opening and secured to the door, and a combined reinforce for the flange and guide for the flexible member consisting of a strip secured to the flange and having its intermediate portion extending away from the flange, said inter mediate portion of the strip being located immediately alon the inner Side of the space adjoining the opening through the flange.

29. In a (lump car, the combination of a car side having a lower chord with an outstanding flange, a dumping door, a flexible through an opening in said flange and secured to the door, and a rub-plate formed of a strap of metal having its intermediate portion twisted at an angle with reference to the end portions, aid end portions being secured to the under side of the chord and said intermediate portion lying on the inner Side of the opening through the chord and forming a guide beneath said opening.

30. The combination of a car side having a lower chord with an outstanding flange, a dumping door, a "chain extending through an opening in the outstanding flange and secured at its lower end to the door, and a guiding device for said chain comprising a strap of metal twisted intermediately with reference to the end portions and curved toward the chain concavely in horizontal planes and convexly in vertical planes, said strap having its end portions secured to the under side of said tlange.

31. In a dumping car, the combination with a dumping door, of a longitudinally .inovable bar having a slot extending lengthable bar having a vertical slot extending lengthwise thereof, a chain secured to the bar extending along the same and attached to the door, a pulley across which the chain 5 passes to the (1001', the pulley having a peripheral groove adapted to receive portions of links presented eclgewise thereto, while the groove in the bar receives the other portion of the same links, the alternate links being presented fiatwise to the bar and to 10 the pulley whereby the weight of the bar rests on these links, inturn resting on the pulley.

In testimony whereof we hereunto ailix our signatures.

FRANK INGOLDSBY. 111cm Y 'r. (.EIBBARI).

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