US1439385A - Door fastener - Google Patents

Description

Dec. 19, 1922. 1,439,385

S J; STRID, DOOR FASTENER FILED DEC. 2. 1920.

2 SHEETS-SHEET l 1/ lljw K.) Quavz J J'irwi R E i Li 4 an E 23 i JUNE 5 I928 .1922

Io. DOOR ASTENER.

2 SHEETS-SHEET 2 FiLED DEC. 2, I920.

Patented Dec. 19, 1922.

UNITED STATES PATENT OFFICE.

SVEN J. STRID, or CHICAGO. ILLINOIS, ASSIGNOR T0 \NILLIAM H. MINER, 0F CRAZY, NEW YDRK DOOR FASTEN ER.

Application filed December 2, 1920. Serial No, 427,813.

To a]! (claim it may concern Be it known that I. SvnN J. S'run), a citizen oi the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and usotul vlmprovement in Door Fasteners, of which the following a full, clear. concise. and exact description. reference being had to the accompanying drawings. forming a part of this specification.

This invention relates to im n'oven'ients in door operating mechanisms.

In railroad refrigerator cars, the almost universal practice is to employ spring pressed packing at the joints in order to olitain as hermetic a seal as possible when the doors are in clc'ised position. On account of the spring pressed packing or insulation, considerable pressure is required to force the doors to fully closed position and also to initiatc the opening movements. Very frequently. moisture collects on the insulation and then treezes around the edges of the doors, thereby making it extremely ditlicult to open the doors. it is therefore of prime importance in an operating mechanism for doors of refrigerator cars, that the mechauism be adapted to exert great force in both the h'nal closing movements and also in the heginuing'ol' the opening movements of the doors. l lll'tilitln'lllll. due to limitations oi maximum overall width of any car em ployedon a railroad. it necessarily follows that. in order to permit of the maximum width and carrying capacity of the refrigerator car body proper, the mechanism ap plied to the outside of the door should ex tend or project outwardly therefrom a minimum distance to therchy avoid injury when the refrigerator car passes another "an or any stationary ohject along the road way.

its is well known. refrigerator cars are loaded and unloaded from platforms which are generally made .suhstautially Hush with or slightly lower than the car lloor in orderto facilitate the trucking in and out of the load. In most door operating devices for refrigerator cars heretofore cmplovcd, a portion of the mechanism has extended sev eral inches below the hottom edge of the, swinging door to which it is applied so that. in attempting to suing the door hack and forth over a platform llusli or even a few inches below the car floor level. difficulty has been experienced frequently necessitating the chopping away of portions of the platl'orm to provide the necessary clearance for the mechanism.

One ohject of my invention is to provide aneliicient, durable. and strong mechanism for hinged or swinging doors, and more especially for refrigerator car doors where great pressure is required in effecting the final closing and initial opening movements of the door.

Other objects of the invention are to provide a mechanism of the character indicated in the preceding paragraph so designed that the mechanism may be easily operated either from a loading platform or by the operator when standing on the ground; to provide a mechanism of the general character herein before indicated so arranged that the mechanisni will avoid projecting below the lower edge of the, movable door on which the mechanism is mounted for more than approximately an inch whereby the door may be readily swung back and forth over a loading platform, which is positioned an inch or two below the level of the car floon in the drawings forming a part of this specification, Figure 1 is a side elevational view of a portion of a refrigerator car showing my improvements employed in courier tion therewith. Figure 2 is a vertical. seetional view corresponding substantially to the line 2--i2 of Figure 1 and showing the re trigcrator door in fully closed position. Figure 3 is a view similar to Figure 2 hut illustrating the position of one of the doors and the operating mechanism associated therewith corresponding to either the initial en; agemeut of the gears with the racks to effect tinal closure of the door or the final engagement hetween the gear and the hccpcr racks at the end oi th torrent open lug movem nt. .-\ud Figuw i is a detail. eleiational view. illustrating a somewhat ditlcrcut emhodimcut cl the invention.

Referring first to the construction illustrated in Figures 1 to 3 inclusive, the car wall is indicated at 10, in which is provided the usual. side door opening of generally rectangular torus as indicated at '1 1.. As customary. said door opening, defined by a threshold l2. sale door p0; l3--l3 and a howled lintei ll. The door shown is of the usual lead seal. the latch 31 may be perforated as indicated at 35 and the flange 34 correspondingly perforated as indicated at 36, said perforations being in register when the lever G is in closed position.

In Figure 3 l have illustrated by dotted lines 37 a loading platform, the top of which is slightly below the floor level of the car. Taking into consideration the scale employed on the drawing. the top of said platform is approximately one inch below the floor level and it will be noted that the lower segmental gear E will clear said platform in the swingmg movements of the door member B Some railroads prefer that the operating handle for a door mechanism swing in 'a plane parallel to the outer face of the door to which the mechanism is applied. Figure 4 illustrates a modification adapted to comply with this requirement. As there shown, the links H and J are the same as or correspond to the links H and J shown in the other figures and it will be seen that the segmental gears, keepers and brackets will re main the same.

Instead of showing a le'ver mounted as shown in Figures 2 and 3, however. the lever G is pivotally mounted on a stud or axis 124 which extends perpendicular to the face of the door member so that said lever G is itself adapted to swing in a plane parallel to the face of the door member. The lever is formed with oppositely extended flanges 38 and 39 in line with the pivot 124 to which the Links H and J are respectively pivotally attached as indicated at 127 and l29.

The .door mechanism illustrated in Figure 4 may be locked in closed position by any suitable means as for instance a latch 131. pivotally attached to the lever G as indirated at 132, said latch 131 being adapted to engage over a flange 134 formed on a bracket ll) secured to the face of the door member. The latch 1:31 and flange 134 may have alined perforations as indicated at v135 to accommodate the usual lead seal.

Due to the fact that the. door member B swings about a vertical axis during the operation of the door mechanism. the teeth 17 and Zl will preferably be tapered radially with the pivotal axis of the door member B as a center but in view of the fact that said taper is so small. I have not deemed it necessary to illustrate the saane in detail in the drawings.

I have herein shown and described what I now consider the preferred manner of carrying out the invention but the same is merely illustrative and l contemplate all changes and modifications that come within the scope of the claims appended hereto.

I claim:

1. In a refrigerator car having a door opening and a door hinged to swing about a fixed axis at one of its vertical edges. the combination with upper and lower toothed keepers secured to the outer face of the car wall above and below said door opening respecti'vely, the teeth of the keepers projecting toward each other: of gears pivotally mounted on said door near its edges at the top and bottom thereof. said pivotally mounted gears being located to engage said keepers only when the door is in closed and nearly closed position; and manually operable means for rotating said gears about their iespective pivots while in engagement with said keepers to thereby eflect. final closing and initial opening movements of the door.

2. In a refrigerator car having a door opening and a door hinged to swing about a fixed axis at one of its vertical edges, the combination with upper and l wer toothed keepers secured to the outer face of the car wall above and below said door opening respectively. the teeth of the keepers project ing toward each other; of gears pivotally' mounted on said door near its edges at the top and bottom thereof, said pivotally mounted gcars being located to engage said keepers only when the door is in closed and nearly closed position; and manually operable means for rotating said gears about their respective pivots while in engagement with said keepers to thereby effect final closing and initial opening movements of the door. said means including. a lever pivotally mounted on the door intern'icdiate said gears and a link connection between said lever and each gear.

3. In adoor operating mechanism of the character described. the combination wim a member having a door opening and a door' hinged to swing about one of its vertical edges; of upper and lower toothed keepers secured to the outer face of said member above and below the door opening. the teeth of said keepers extending toward each other; of upper and lower brackets secured to said door near its free edge and adjacent the top and bottom thereof; a. gear pivotally mounted in each of said brackets and adapted to swing about a horizontal extending parallel to the face of said door. said gears being arranged to engage said keepers when the door is in closed and nearly closed position; and manually operable means for etlecting rotation of said gears simultaneously about their respective axes.

4. In a refrigerator car having a door opening and a door hinged to swing about one of its vertical edges. the combination with upper and lower toothed keepers secured to the outer face of the car wall above said door opening, the teeth of the keepers extending toward each other; of gears pivotally mounted on said door near ts edges at the top and bot-tom thereof, said pivotally mounted gears being located to engage said keepers when the door is in-closed and nearly closed position; and manually operable means for rotating said gears about their respective pivots while in engagement with said keepers to thereby effect final closing and initial opening movements of the door, each of said gears having a radially extendingshoulder adapted to initially engage the outer end of the corresponding keeper to insure proper registration of the gears and toothed keepers.

In a refrigerator car having a door opening and a door hinged to swinp about one of its vertical edges, the combination with upper and lower toothed keepers sertll't'il to the outer face of the car wall above said door opening, the teeth of the keepers extending toward each other; of gears pivotally mounted on said door near its edges at the top and bottom thereof, said pivotally mounted gears being located to engage said keepers when the door is in closed and nearl Y closedposition; manually operable means or rotafin said gears about their respective pivots whi e in engagement with said keepers to thereby effect final,

closing and initial opemn movements of the door, said means inclu mg, a lever piv- Utfill) mounted on the door intermediate said gears and a link connection between said lever and each gear; and cooperating locking devices on said lever and one of said links.

6. In a refrigerator car having a door opening and a door hinged to swing about one of its vertical edges, the combination with upper and lower keepers secured tothe outer face of the car wall above and below the door opening; of a pair of brackets 40 secured to said door near its free edge, one near the top and one near the bottom thereof, said brackets being adapted to aline with said keepers when the door is in closed and nearly closed position: a member pivot-ally mounted on each of said brackets about a horizontal axis extending parallel to the face of said door, said members having meansprojecting beyond the corresponding upper andlower edges of the door, to 00- operate with said keepers; an operating lever plvotally mounted on the door; and means extending between said lever and said men hers arranged to oscillate the latter about their respective pivots when said lever is oscillated about its ivot.

In Witness that claim the foregoing I have hereunto subscribed my name this 10th day of Nov., 1920.

SVEN J. STRID.

lVitnesSes:

META Somum'r, UNA C. PERIN.

Images