US1024582A

US1024582A - Door-operating mechanism.

Info

Publication number: US1024582A
Application number: US57757310A
Authority: US
Inventors: Sherman Jones
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-08-17
Filing date: 1910-08-17
Publication date: 1912-04-30
Anticipated expiration: 1929-04-30

Description

S. JONES.

DOOR OPERATING MECHANISM.

APPLICATION FILED AUG.17, 1910 Ill "" I INVENTOR Sherman cfones,

ATTORNEY Patented Apr. 30, 1912.

SHERMAN JONES, OF NEWARK, JERSEY.

DOOR-OPERATING- MECHANISM.

Specification of Letters Iatent.

Application filed August 17, 1910. Serial No. 577,573.

Patented Apr. 30, 1912.

To all whom it may concern:

Be it known that I, SHERMAN Jonns, a citizen of the United States, and resident of the city of Newark, in the county' of Essex and State of New Jersey, have invented certain new and useful Improvements in Door- Operating Mechanism, of which the following is a specification. V

This invention relates to single and double acting sliding doors adapted for closing the opening of side doors for railroad cars, elevator openings and the like, the object being to provide a door which can be operated at a distance only by an authorized person as it is self-locking, but in case of a panic can be immediately disconnected from the operating means and opened by hand in the same way as an ordinary hanging door.

In the accompanying drawings, Figure 1 is a front elevation of my invention, showing a double door for a wide opening; parts are broken away for clearness of illustration. Fig. 2 is a sectional side view on line 22 of Fig. 1. Fig. 3 is an enlarged front elevation of the locking and unlocking device; Fig. .1. is a side view of Fig. '3. Fig. 5 shows the wiring plan and Fig. 6 is a modification of the operating means.

Similar reference characters parts in the several views.

For a wide opening, I prefer to use two doors, operated by a right and left screw to cause the doors to move simultaneously toward or from the midline of the doorway, while for a comparatively narrow door, I may make use of a single door operated by a screw threaded in one. direction only a complete operative device, in this case, being shown in Fig. 1 to the right of the center line 2-2.

I prefer indicate like to use electricity as a motive power, though a motor operated by compressed air and actuated by valves operated by electricity can be used without changing the method of transmission or the unlocking means.

The doors 1, 1' are suspended by any suitable hangers and sheaves, 2, running on a track 3, secured to the side of a car 4. Above the doors and below the track, a shaft 5 provided with one or more threads, 6,-as requiredis journaled in bearing brackets 7; one end 8, adapted to run in either direction by proper winding and by a double throw switch,

of the shaft is connected to a motor,

9, which reverses the armature cur-- rent, together with the knife switches 1010 placed in the path of a finger 11 which is preferably fastened to a hanger, shown in Figs. 1 .and 2, whereby the said switches are operated, as will be more fully hereinafter described. To operate the doors,

a divided fitting internally threaded to en-' gage the thread, 6, .of the shaft is fastened to the top or near the top of the door. This fitting is composed of two halves, 13, 13' slidable, mounted on a support, 12, having gibs or other means of keeping the two halves in alinement. Each half has a pin 14 extending inward from the face and passing through a vertical slot and through a cam or scroll slot 15in a plate 16 which is pivotallymounted by a screw 17 on the support 12. The lower end of the plate 16 has an eye 16 to which a rod 18 is secured; this rod runs above the door to an L crank 19, to the upper leg of which it is fastened, the other leg being connected with a sliding piece 20, similar in construction to the ordinary slide latch used on double doors. On the door 1 a similar device is shown with a slight alteration in construction due to the changed position. On said door the upper leg of the L crank is directly connected with the eye 16 of the plate 18. In either case the operation of looking or unlocking is the same, as will be fully hereinafter described. Fig. 6 shows a rack 21 on /top of the door and a worm 22 on the end of a shaft 5 connected to a motor 8 by a universal joint 23, the end of the shaft being journaled in a bearing 24 which, when the handle 25 is pulled, raisesthe worm out of contact with the teeth in the rack, so that'the door'l is free to be moved by hand.

The wiring shown in Fig. 5 is a simple method of operating the motor, and while it may be departed from in certain details,-

door; switch 10 is'in series with the circuit when the switch 9 is reversed so as to the door.

' B is a dynamo or source of electricity close while E is a fusible cut out or circuit breaker, placed conveniently to switch 9.

Such being the construction, the operation is as follows: We will assume that a railroad car is equipped with sidedoois having my improvement. The controlling switch 9 is placed at either end, convenient to the trainsman. The doors being closed when the projecting button of the switch is pushed in,the switch 10 being closed and in series with the circuit,the motor revolves 0pening both doors, the finger 11 above the door closing the knife switch 10 which is in its path, but which is not then in circuit. When the door 1 is open to its full limit, the said finger will have reached the switch 10' which it opens, thus cutting off the current and stopping the motor. Switch 10 being now closed, everything is-ready for reversing, when the other button of the reversing. switch is pushed in, to close the doors; the operation will be reversed, the finger 11 closing the switch 10-not in circuit-and opening the switch 10 as door closes, the position then being as shown in Fig. .1. In the eventof a panic or failure of the electric current for any cause, by pull ing down the sliding piece, 20 the rod, 18, pulling on the pivoted ,plate 16 causes it to assume the position shown by dotted 'lines in Figs. 3 and 4 whereby the threaded fitting 13-43 will be separated by means of the scroll slots and pins and the door be free to move by hand in either direction. To lock the fitting on the threaded shaft again, the operation is reversed.

From the foregoing description taken in connection with the accompanying drawing,

the advantages of the construction and of the method of operation will be readily apparent to those skilled in the art to which the invention appertains, and while I have described the prlnciple of operation of the invention which I now consider to be the best embodiment thereof, I desire to have it understood that the device shown is merely illustrative and that such changes may be made, when desired, as are within the scope of the claim.

Such being my invention, I claim- In combination, a door, a track, hangers carried by the door and traveling upon said track, a motor, a threaded shaft connected to and operated by said motor, fan interiorly threaded sectional fitting carried by the door and engaging the threads of the shaft whereby the door is shifted when the shaft is operated, means whereby the sections of said fitting can be shifted to disengage the threads thereof from the threads of the shaft to permit of the shifting of the door manually, electrical means for throwing saidmotor into operation, means carried by one of the hangers and engaging with said electrical means for controlling automatically the distance of door travel, and means for changing the direction of current to the motor.

Signed at New York city in the county of New York and State of New York this 15th day of August A. D. 1910.

SHERMAN JONES.