US967757A

US967757A - Car-door.

Info

Publication number: US967757A
Application number: US51098309A
Authority: US
Inventors: Alexander H Glandon
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-08-03
Filing date: 1909-08-03
Publication date: 1910-08-16
Anticipated expiration: 1927-08-16

Description

A. H. GLANDON.

GAR DOOR.

APPLIOAIION FILED AUG. 3, 1909. I 967,757, Patented Aug. 16, 1910. s en ma-sum 1.

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A. H. GLAN DON.

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ALEXFNDER H. GLANDON, OF WABEDO, MINNESOTA.

CAR-DOOR.

Specification of Letters Patent.

Patented Aug. 16, 1910.

Application filed August 3, 1909. Serial No. 510,983.

To all whom it may concern:

Be it known that I, ALEXANDER H. GLAN- non, a citizen of the United States, residing at Wabedo, in the county of Cass and State of Minnesota, have invented certain new and useful Improvements in Car-Doors, of which the following is a specification.

This invention relates to novel improvements in doors for cars, or the like, and the invention resides particularly in certain novel features of construction, the form and advantages of which will be pointed out more clearly hereinafter.

For a full understanding of the present invention reference is to be had to the following detail description and to the accompanying drawings, in which- Figure 1 is a front elevation showing a side of a car and to which the door is applied,the latter embodying the invention and being shown in closed condition; Fig. 2 is a vertical sectional view taken about on the line 22 of Fig. 1; Fig. 3 is a vertical section on the line 3-3 of Fig. 1; Fig. i is a section taken on the line 44: of Fig. 2 and looking upwardly, those parts of the mechanism carried by the top of the car being shown in plan view; Fig. 5 is a horizontal sectional view on the line 5-5 of Fig. 1; Fig. 6 is a detail section showing the auxiliary door in open position; Fig. 7 is a section taken on the line 77 of Fig. 1; Fig. 8 is a detail view of one of the stops attached to the top of the car for preventing endwise movement of the door when opened or upraised; Fig. 9 is a detail view partly broken away and showing in front elevation the catches which cooperate with the operating and locking rods; Fig. 10 is a detail section on the line 101O of Fig. 9; Fig. 11 is a detail section on the line l111 of Fig. 9, and Fig. 12 is a section on the line 12-12 of said Fig. 9.

Referring to the drawings and specifically describing the invention 1 denotes the car which may be of any ordinary type of construction, 2 indicating the door which is mounted at one side of the car, or both sides, as desired. The main door 2 comprises a fo-ldable structure being made with a hinged or pivoted section 2. At the lower portion thereof, and on the section 2 is provided an auxiliary door 3, the latter embodying pivoted sections also and being adapted to open outwardly as shown in Fig. 6. The auxiliary door 3 is pivotally connected at 3 to the section 2 of the door 2 and said door 3 is normally held in closed position by means of a locking frame 41-, the upper portion of which is hinged to the section 2 of the door 2, as shown at 4, the lower edge of said door 3 being held in closed position by permanent stops located on the sill of the door opening 1 as shown clearly in Fig. 1; see also Fig. 6. The lower portion of the frame 4 has mounted therein a locking bar 5, see Fig. 5, and said locking bar is adapted to engage and interlock with staples 6 on the door 3 to hold the latter closed. The bar 5 is horizontally slidable and moves in a casing 7 on the frame 4, said casing having openings 7 in its ends to permit of in troduction of a suitable tool whereby movement may be imparted to the bar 5 to engage and disengage the same with reference to the staples 6.

The mounting of the auxiliary door 3 upon the main door 2 is exceptionally advantageous by reason of the fact that the auxiliary door may be readily opened from the outside of the car notwithstanding the exceedingly great pressure against the door from the inside and when the car is loaded. Said auxiliary door being held in place by three or four permanent catches or looking members is extremely rigid when closed.

In opening the door 3 the sections thereof by reason of the hinged connection with each other and with the main door, may be folded or doubled and then raised sufliciently to permit the lower edge of the door 3 to be disengaged from the stop strips 5 located on the sill of the door as shown clearly in Fig. 6. The auxiliary door as above described affords a means for facilitating opening of the main door by reason of the fact that when the door 3 is opened considerable pressure on the main door is removed.

The main door 2 is held in its closed position shown in Fig. 2 by means of vertically slidable locking rods 8 mounted in guides 8 on the opposite sides of the door opening, and which locking rods are provided with hooks 9 adapted to engage with catches 10 arranged in recesses located near the vertical edges of the door 2. The rods 8 are two in number and mounted at opposite sides of the door opening 1 of the car, said locking rods each being held in its operative position, holding the door closed by means of spring catches 11, see Fig. 9, which catches engage in notches 8 near the lower ends of the rods 8. To release the rods 8 from the door 2, the catches 11 are disengaged from the rods by moving upwardly the lower ends of small cam levers 12, eyes 13 being provided in the lower .ends of the rods 8 so as to facilitate the engagement of a tool with said rods to move the latter upwardly.

Special means is provided for holding the door 2 in an elevated position near the top of thecar 1 and after it has been opened. Such means comprises a'pivoted carrier 14 consisting of a frame pivoted in brackets 15 secured to the top of the car, the frame being normally held in an upraised or horizontal position by means of springs 16 the ends of which engage opposite sides of the'frame as shown at '16. Co-acting also to hold the carrier 14 upraised are catches 17 which pro ject froma shaft 18 mounted above the door opening 1 and which shaft has a crank arm 19 extending outwardly therefrom and pivotally connected with a Vertical operating rod'20 mounted at one side of the door opening 1. The operating "rod 20 is normally locked in a lowermostposition bythe catch 21, similar to the catch 11, said catch 21 being adapted to be disengaged from the rod 20 by means of a small lever 22 shown in Fig. 10 and which has a cam portion 22 to engage the rod directly.

Mounted above thepivoted portion of the carrier 14 is a hollow drum 23 in which is a spring 24 which normally tends to turn said drum in a direction which will cause the flexible connections 25 secured thereto to be wound upon the drum. The connections 25 are cables or ropes secured at their outer ends to the door 2 as shown at 25, said connections being provided intermediate their length with projections 26 such as knots, or the like.

At the upper side of the door opening 1 are mounted pivoted catches 27'notched at one end to receive the connections 25, see Fig. 2, and said catches co-act with pivoted stops 28 in a manner to be hereafter described.

Describing the operation of opening the door, the pin 29, which passes through the casing 7 and the locking bar 5, being carried by a chain or cord 30 as shown in Fig. 1, may be pulled upwardly out of its position and permitted to hang suspended by said chain or cord. The operator is now able to open the door 3 regardless of the pressure caused by the'contents of the loaded car bearing against the inside of the door. The opening of the door is accomplished by entering a suitable tool at the opening 7 in the left end of the casing 7, and sliding the locking bar 5 horizontally to the right thereby releasing the hooks on said bar 5 from. thestaples 6 in the lower edge of the door 3, this operation simultaneously releasing the locking frame 4 from the support of the door 3, and said locking frame having pre viously held the hinged joint in the door 3 in its rigid closed position. The joint in the door 3 now being released from the support of the locking frame 4, the pressure against the inside of said door caused by the contents of the car will exert and force outwardly on the said joint causing it to double in such a manner as to raise the lower edge of the door 3 sufiiciently to permit it. to pass over the stops on the sill of the door opening 1, whichstops have previously held it in closed position as shown in Fig. 1, and the door 3 is opened, see Fig. 6. The .grain with which the car is loaded now passes out through the door 3 relieving the pressure against the main door 2 and permitting the latter to be opened and handled in the manner described below. After the above operation the catches 11 are disengaged from the locking rods 8 and said locking rods are forced upwardly so as to disengage the hooks 9 from the catches 10 on the door 2; thereupon said door 2 is free to open. The catch 21 is now disengaged from the operating rod 20 and the latter is raised so as to move the catches 17 outwardly releasing the door carrier 14 and permitting the same to move downwardly into the dotted line position shown in Fig. 3. The door 2 is now grasped by the operator and raised upwardly against the stops 14 on thesides of the carrier 14 after which the carrier is raised against the top of the car, as shown in full lines in Fig. 3. The operator can raise the carrier as above mentioned with one hand while with the other hand'he pulls downwardly. on the operating rod 20 to impart movement to the shaft 18 whereby to engage the catches 17 again with the carrier to lock the latter in its elevated position. The door is thus locked in the elevated positionshown in Fig. 3 the sections thereof having of course been folded above one another in the manner illustrated and before being raised. The lower section 2 of the door 2 is provided with pivoted plates at its side edges, shown at 31, the free ends of said plates engaging the sides of the door opening-1 as shown in'Fig. 3, when the door is released, thereby forcing the door outwardly away from the hooks 9. As the door 2 is raised to the position shown in F i". 3 the ends thereof strike the long arms of a pair of pivoted stops 32, and swing said stops upwardly until their short armsare in vertical positionsshown in Fig. 3, thereby preventing likelihood of endwise displacement of the door from the carrier 14, or any movement of such door that would take it out ofa proper position to swing back into the door opening when dropped into closed position.

The operation of closing the door is very simple, the rod 20 being operated by upward movement to disengage the catches 17 from the carrier 14, and said rod being locked in its upper position by means of a small catch 33 at the top of the door opening 1', said catch 33 being adapted to engage beneath the crank arm 19. The catches 17 are now in their outermost positions and in contact with the outer sides of the pivoted stops 28. The small catches 27 are now turned so that their notched ends are remote from the stops 28 and their opposite ends in contact with said stops as shown in dotted lines in Fig. 41. The operator now takes hold of the flexible tension connections and pulls outwardly thereon until the projections 26 are engaged with the outer sides of the members 27. The carrier 14 being lowered the door 2 is disposed in the door opening 1 and again locked closed by means of the locking rods 8, the auxiliary door 3 being also looked closed by means of the bar 5. The catch 33 may now be disengaged from beneath the crank arm 19 and by pulling downwardly on the operating rod 20 the catches 17 will be moved inwardly out of contact with the stops 28 permitting said stops to move laterally releasing thecatches 27 which have heretofore been held rigid in their transverse positions, and the tension connections also being released simultaneously so that the parts assume the position shown in Fig. 2 and the operation of closing the door is completed.

Having thus described the invention what is claimed as new is:

1. In combination, a car a door mounted thereon and movable vertically to the top of the car, a door carrier at the top of the car, catches for holding said carrier elevated, means for operating said catches, tension means connected with the door to assist in elevating the same, and means controlled by the catches for rendering the tension means inoperative preparatory to downward closing movement of the door.

2. In combination, a car, a door, a carrier for supporting the door in an upraised position, means for locking the carrier elevated, means connected with the door to assist in raising the same, the last mentioned means comprising a spring drum, and devices controlled by the locking means for the carrier for rendering the spring drum inoperative.

3. In combination, a door, a door carrier at the top of the car for supporting the door in an elevated position, door elevating means connected with the door, means for locking the carrier in an elevated position while the door is thereon, and devices for rendering the door elevating means inoperative preliminary to downward closing movement of the door.

4, In combination, a car, a door, means for elevating the door, means for supporting the door inan elevated position, and means for rendering the door elevating means inoperative preliminary to downward closing movement of the door.

In testimony whereof I afliX my signature in presence of two witnesses.

ALEXANDER II. GLANDON.

Witnesses:

JOHN J. ALLEN, JAMES E. Gunny.