US1149761A - Automatic control mechanism for safety-platforms. - Google Patents

Description

F. HEDLEY 61 J. S. DOYLE. AUTOMATIC CONTROL MECHANISM FOR SAFETY PLATFORMS.

I APPLICATION FILED OCT. 14. I914. 1,149,761. Patented Aug. 10, 1915.

COLUMBIA PLANOGRAPH C0,, WASHINGTON. n. c.

UNITED STATES PATENT OFFICE.

FRANK HEDLEY, 0F YONKERS, AND JAMES S. DOYLE, 0F MOUNT VERNON, NEW YORK.

Specification of Letters Patent.

Patented Aug. 10, 1915.

Application filed October 14, 1914. Serial No. 866,607.

To all whom it may concern Be it known that we, FRANK HEDLEY and JAMns S. DOYLE, both citizens of the United States, and residents, respectively, of Yonkers and Mount Vernon, in the county of Vestchester, State of New York, have made a certain new and useful Invention in Auto matic Control Mechanism for Safety-Platforms, of which the following is a specification.

This invention relates to station or landing platforms having movable portions to be advanced toward a car or train standing opposite the same to fill the gap between the side of the car and the edge of the platform, and particularly to devices controlled by the length of the train for effecting the operation of the movable portion of the platform.

The object of the invention is to provide an arrangement which is simple and efii cient for effecting the operation of the movable platform sections according to the length of the train.

The invention consists substantially in the construction, combination, location and relative arrangement of parts, all as Will be more fully hereinafter set forth as shown in the accompanying drawing, and finally set forth in the appended claims.

The accompanying drawing discloses, in the single view thereof, a diagram illustration of an arrangement embodying the principles of our invention.

7 In application for patent executed of even date herewith Serial Number 866,606 we have shown, described and claimed a system of movable platform sections to be advanced and retracted toward and from a car ortrain standing opposite a station platform or landing to fill up the gap or space between the side of the car or train and the adjacent edge of the platform, and means for actuating and controlling the operation of said movable sections.

' The present invention relates to the same system or apparatus, and is designed to provide an auxiliary control dependent upon the length of the train.

In the drawing the car 1, track rails 2, third rail or conductor 3, platform or landing 4, movable section 5 of the platform control devices 7, 6, for the advance and retracting movements of the movable section of the platform, switch devices 8, 9, in the circuit of control device 7, relay switches 10, 11,12, car side contact strips 13, movable contact 14, motor 15, control device 16, therefor, contact member 17, shoe 18 on the car, and contact member 19, at the approach end of the platform, noted application for automatic safety mechanism and their operation is the same as described and claimed in said application. That is to say, as car or train approaches the platform circuit is completed through a shoe on the car from the conductor 3 to contact member 19, as the car or the first car on the train passes by the member 19, through wire 20, contacts 21, to point 22, thence in parallel branches, one of which includes wire 23, the coils of relay 10, wire 24, contacts 25 to ground at 26, and the other from point 22, through wire 27, the coils of device 16, wire 28, and 24 and on to ground at 26. The completion of these circuits causes relay 10 and device 16 to be operated. The operation of relay 10, closes contacts 29, 30, and opens contacts 21. The closing of contacts 29, closes circuit from a current source 31 through wire 32, contacts 29, wire 23, coils 10, wire 24 to ground at 26, and also from current source 31, through wire 32, contacts 29, wire 23, wire 27, device 16, and on to ground at 26, as before. The circuits grounded at 26 are all broken when the device 7 which controls the retraction of the movable section 5 of the platform is actuated, thereby restoring the parts controlled by said circuits to initial position. When the train is composed of a given number of cars, say, for instance, ten cars, when the front car arrives in a predetermined position, a contact shoe 61 on the car completes connection from the third rail or conductor 3 to an auxiliary contact member 62, and thence through a resistance 63, coils 64 of a relay switch device, wire 65, wire 66, to movable contact 14, to contact strip 13, which is now the second car of the train, to wire 36, the ground connection of which is controlled by contacts 37, which are maintained open so long as the car propelling motor is operating by the relay 12, which is operated by the counter-electro-motive force of the car propolling motor 38. Therefore this circuit is not completed unless and until the car 1 comes to rest. The completion of this circuit energizes the coils 64, thereby opening contacts 67, an closing contacts 68. The

are the same as 1D. 0111 ZLbOVG closing of contacts 68, completes a circuit connection from auxiliary member 62, contacts 68, wire 40, resistance 41, wire 42, a supplemental station or platform switch, if desired, indicated in dotted lines at 55, contacts 30, wire 43, device 6 which controls the advance of the platform section 5 toward the side of the car. Of course it will be understood that there will be as many platform sections 5, and control devices 6 as there are cars toward which the platform sections are to be advanced, and that the circuits of the several control devices 6 are in multiple as indicated in the drawing. The circuit of each control device 6, continues from said device through Wire 44, to a short insulated section of track rail 45, which is grounded to complete the circuit through the control device only when a truck wheel of a car is resting on said insulated track rail section 45.

In practice, it will be understood, a movable platform section 5, and its control devices 6 and 7 and their circuit connections, as above explained, are provided for each car of the train, and when we refer to a car we wish to include not only a single car but also, where applicable, a train of several cars. Thus it will be seen that in order to complete the circuits which cause the va rious platform sections to be advanced the following conditions must be satisfied: All the platform sections must be in retracted positions and the circuits of their control devices 7 must be broken, otherwise the contacts 25 will be open thereby making it impossible to close the circuit of relay 10, and if the relay 10 is not energized then the contacts 30 in the circuits of the devices 6 which control the advancement of the platform sections remain open. Next, assuming that the platform sections are all fully retracted, the circuit of relay 10 must be closed by the front car of the train from the conductor 3 or other source to the member 19, as the car or train approaches the platform. Next the front car of the train must arrive in position to complete circuit connection from current source to member 62, otherwise there will be no current supply to the circuits of the control devices 6. Next, the second car of the train must be at rest opposite the movable contact 14, otherwise the contacts in the circuit of coils 64, which are controlled by the counter-electro-motive force of the car propellingmotor 38, will remain open, and consequently the contacts 68 in the circuit of the contact devices 6 will remain open. Finally the cars opposite the movable platform sections to be moved must be in position for a truck wheel thereof to rest upon the corresponding insulated track rail section 45, otherwise the circuits of the control devices 6 will not be completed.

The contacts 67, controlled by the coil 64,

are in the circuit of coil 11, which controls contact 39 which are in a circuit connection 33 to conductor 17 to which circuit is closed from current source by contact devices on the car. The circuit of coil 11 includes a high resistance 34 and the circuit connection 33, and conductor member 17. In shunt around the coil 11 is a circuit connection 69, which is grounded through an insulated track rail section 70 and a truck wheel resting on said section. This track rail section is so located with reference to the conductor member 62 that when a ten car train, for instance, is brought to a stop opposite the landing or platform 4 with the front car of the train in position for the shoe 61 thereon to contact with the conductor member 62, a truck wheel of the last car of the train will rest upon track rail section 70, thereby grounding said section and the circuit connection 69. Under these conditions it will be seen that no derangement is caused by the first car of the train passing by the conductor member 17, even though the shoe 61 should contact therewith as in that case no completed circuit is established. The second car 1 of the train, however, when brought to rest completes circuit connection from current source through shoe 18 to conductor member 17, wire 33, resistance 34, shunt 69, track rail section 70 to ground through the truck wheels of the last car of the ten car train, and consequently nothing happens. In this case the circuit from resistance 34 is not completed through the coil 11, for the reason that at that instant car 1 comes to rest in the circuit of coil 64, which is in the circuit of coil 11. In case a train of eight cars or any less number instead of ten, comes into the station, the front car of the train comes to stop in the position of car 1 shown in the drawing. In this case there is no car to complete the circuit of track rail section 70, and consequently the circuit of coil 11, is completed from conductor member 17, wire 33, resistance 34 coil 11, contacts 67, wire 66, contact 14, and on to ground when the counter-electromotive force relay 12 closes the ground connection of said circuit by the motor 38 coming to rest.

Thus it will be seen that we provide a system wherein an auxiliary control dependent upon the length of the train is employed, and which system does not interfere with the operation of other trains including a fewer number of cars.

We have referred to switches 8 and 9. These switches control contacts in the circuit of the devices 7 which control the means for retracting the advanced platform section. The switch 8 is opened by the advancing movement of its platform section, while switch 9 is opened when the platform section is in completely retracted position.

aitimll 4 sections beyond the Also included in the circuit of devices 7, are contacts 52, which are closed only when the device 6 is out of action.

f desired a signaling system, a portion of the circuit connection of which is indi cated at 56, may be interlinked with main and auxiliary control systems above described. This however, is not claimed in the present application.

Having now set forth the objects and natures of our invention, and a system embodying the same, what we claim as new and useful and of our own invention and desire to secure by Letters Patent is 1. In a safety platform mechanism, the combination with stationary and movable platform sections, and automatic-devices dependent upon the number of cars in a train for controlling the operation of the movable sections.

2. In a safety platform mechanism, the combination with stationary and movable platform sections and automatic devices dependent upon the number of cars in a train and'controlled bv the predetermined position of individual cars in the train for controlling said devices.

3. In a safety platform mechanism, the combination with stationary and movable platform sections, and automatic devices de pendent upon the number of cars in a train for controlling the advance of the movable sections toward the cars of the train.

4. In a safety platform mechanism, the combination with stationary and movable platform sections, and automatic devices dependent upon the number of cars in a train and controlled by the positions of the first and last cars of the train for controlling the advance of the movable sections toward the cars of the train.

5. In a safety platform mechanism, the combination with stationary and movable platform sections, means for advancing said movable sections toward the cars of a train standing along side the platform, and devices controlled by the length of the train for controlling said advancing means.

6. In a safety platform mechanism, the combination with stationary and movable platform sections, means for advancing said movable section toward the cars of a train standing along side the platform, and de vices controlled conjointly by the position of the first car of the train of predetermined length and that of the car opposite each movable platform section, for controlling the advancing movement of said section, said devices being inoperative for trains of other lengths.

In a safety platform mechanism, the combination with stationary and movable platform sections, devices for controlling the advancing movement of said movable edge of the stationary platform, and means dependent upon the arrest of a train of a predetermined numher of cars in predetermined position for controlling said devices.

8. In a safety platform mechanism, the combination with stationary and movable platform sections, devices for controlling the advancing movement of said movable sections, a circuit therefor including a switch, and means controlled by the first car of a train containing a predetermined number of cars for closing said switch.

9. In a safety platform mechanism, the combination with stationary and movable platform sections, devices for controlling the advancing movement of said movable sections, a circuit therefor includingaswitch and means controlled conjointly by the first and second cars of a train for closing said switch.

10. Ina safety platform mechanism, the combination with stationary and movable platform sections, devices for controlling the advancing movementof said movable sections, a circuit therefor including a switch, and means controlled conjointly by the position of the first car and the arrest of the second car of a train for closing said switch.

11. In a safety platform mechanism, the combination with stationary and movable platform sections, devices for controlling the advancing movement of said movable sections, a circuit therefor, branch connections from said circuit to separate sources of current supply. means controlled by the first car of a train containing a predetermined number of cars for controlling one of said branches, and means whereby when one branch circuit is completed the other is out of action.

1 In a safety platform mechanism, the combination with stationary and movable platform sections, devices for controlling the advancing movement of said movable sections, a circuit therefor, branch connec tions from said circuit to separate sources of current supply, a switch included in each of said branch circuits, a circuit to control each switch, one of said switch controlling circuits having a shunt and means dependent upon the length of a train standing opposite the platform for completing the other of said switch control circuits and for grounding said shunt.

13. In a safety platform mechanism, the combination with stationary and movable platform sections, devices for controlling the advancing movement of said movable sections, a circuit therefor, branch connections from said circuit to separate sources of cur rent supply, a switch included in each of said branch circuits, a circuit to control each switch, one of said switch controlling circuits having a shunt, means carried by the front car of a train containing a predetermined number of cars to connect one of said switch control circuits to current source, the last car of said train serving to ground said shunt.

1 1. In a safety platform mechanism, the combination with stationary and movable platform sections, devices for controlling the advancing movement of said movable sections, a circuit therefor, branch connections from said circuit to separate sources of current supply, a switch included in each of said branch circuits, a circuit to control each switch, one of said switch controlling circuits having a shunt, means carried by the front car of a train containing a predetermined number of cars to connect one of said switch control circuits to current source, means effective only when the train is at rest to complete said last mentioned circuit, the last car of said train serving to ground said shunt.

15. In a safety platform mechanism, the

five cents each,

Washington, D. 0.

combination with stationary and movable platform sections, devices for controlling the advancing movement of said movable sections, a circuit therefor, branch connections from said circuit to separate sources of current supply, a switch included in each of said branch circuits, a circuit to control each switch, means effective only when a car is at rest in a predetermined position with reference to either switch for closing the circuit of said switch, and means whereby when one switch circuit is closed the other remains open.

In testimony whereof we have hereunto set our hands in the presence of the subscribing witnesses, on this 21st day of September A. D. 1914:.

FRANK HEDLEY. JAMES S. DOYLE.

Witnesses:

H. P. TI'rUs, WARREN MARCUS.

by addressing the Commissioner 0! Patents,

Images