US1676743A - Push-button apparatus for multiple-unit door-control systems - Google Patents

Description

July 10, 1928. 1,676,743.'

A. F. PAUL Pusq/ au'r'rou APPARATUS Fon MULTIPLE UNIT Doox common SYSTEMS F11-d Deo. 17. 1921 2 sheets-sheet 1 I e vl-:N'ron BY ATTORNFY 5W /Zyf nl' lsslrrrfllllllllu July 10, 1928.

A. F. PAUL PUSH BUTTON APPARATUS FOR MULTIPLE UNIT DOOR CONTROL SYSTEMS Filed Dec. 17. 1921 2 Sheets-Sheet 2 'IlIIIlIllIlIIl/ll'll' y' `r Q0ldrllENToR ATTORNEY 5 Patented July l0, 1928.

UruTED` STATES, PATENT OFFICE.

ABRAM FRANK PAUL, OF LLANERCH, PENNSYLVANIA, ASSIGNOR TO NATIONAL PNEU- MATIC COMPANY, OF NEW YORK, N. Y., A CORPORATION O F WEST VIRGINIA.`

PUSH-BUTTON APPARATUS FOR MULTIPLE-NIT DOOR-CONTROL SYSTEMS.

Application flied December 17, 1921. seriai No. 523,077.

tive arrangement of parts. all as will be more fullyhereinafter set forth, as shown 1n thel accompanying drawings and finally pointed out in the appended claims.

Referring to the drawings:

Fig. l is a view in front elevation with some parts broken away showing a slightly modified arrangement embodying the principles of my invention.

Fig. 2 is a View in transverse sec-tion on the line eli- 4, Fig. l, looking in the direc-A tion of the arrows.

Fig. 3 is a View similar to Fig. l showing modified forms of push button control apparatus. y

Fig. 4 is a view similar to Fig. l showing another modified arrangement embodying the principles of my invention.

Fig. 5 is a view in vertical section on the line 7 7, Fig. 4.-, looking in the direction of the arrows. y

Fig.6 is a View similar to Fig. land partly in sec-tion onthe line 8 8, Fig. 7, showing still a. further slightly modified arrangement. v

i-Fig. 7 is a view in transverse section on the line 9-9, Fig. 6, looking in the direction of the arrows.

Fig. 8 is a view of another modification.

In the modern multiple unit door control system for use on cars or trains of cars, particularly cars or trains employed in surface,subway and elevated street car transporting systems, it is a common practice to employ push buttons for controlling the circuits of the motors by which the car doors are operated. In such systems the control of a number of doors on a car or train of cars is located at a control point or station, and for effectivecontrol of the car operating motors it is sometimes desirable to be able to selectively operate or control the operationvof the door operating motor of the individual doors. At other times it is desirable to be able to simultaneously operate or control the operation of all of i the door operating motors on any particular car yor on several cars,

It is among the special purposes of my present inventionv to provide a push button control apparatus which enables the selective operation of individual push buttons controllingthecar door operating motors for individual doors and which apparatus is also capable of group operation simultaneously of a'plurality of the push buttons thereby enabling an operator at the control station to operate or cont-rol any particular car door Voperating motor or, at will, simultaneously controllingv thev push buttons in the circuits of a plurality of door motors.

In the accompanying drawings I have shown various arrangements embodying the general principles of a push button control apparatus which permits such selective operation of individual push buttons and also a simultaneous operation of circuit closures for agroup or a number of motor circuits.

In Figs. l and 2 I have shown an arrange ment wherein the circuit terminals l1 are controlled by the individual push buttons ll2 operating the bridging contact member 14. The master push button20, mounted in the control case 21, when actuated, engages an arm 22 connected lto a shaft 23. This shaft is journaled within the casing 21 and care ries a number of crank arms 24:, each carrying a bridging contact member 25 each disposed in cooperative relation with respect to a pair of circuit terminals l1. When the master push vbutton is'manipulated the shaft 23 is rocked thereby causing the crank arms 24 thereon to move the contactors 25 into contact withrtheir respective pairs of terminals 11, hence securing a simu taneous closing of all of the circuits, the terminals of which lead into the box, leaving the operator or attendant, however, free to independently and selectively operate any individual push button 12. The contactors 25 may be returned to their withdrawn position in any suitable manner. I have shown in this instance a retracting spring 26 for this purpose (see Fig. 2).

In 3 I have shown two modified arrangements, the one in the upper part of the figure consisting of a master push button CIK tactors 30 are moved into position simulta-k neously to closerthe circuit betweenl their respective pairs olV terminals 33. rlhisvleaves each pair ol terminals 33j to be bridged independently and individually by the usual push buttons indicated in dotted lines at V3ft. In the lower part oit F i g. 3 a master push button 35 is shown tor projecting longitudinally a rod 3G which, when projected endvvise, eilects the roclrin'gotthe plurality ojt contacter arms 37' through linlr connections, indicated at 38, with the rod 3G, or by` means of pins 39, carried by the rod and engaging the contactor arins. vThus, by the pressing oi the push button l'the various pairs ot terminals 39 are closedby their respective Contaetor arms 37', the closure being'siijijiultaijieous to all of the pairs ol circuit terminals 39, leaving' each pair of tern'iinals tree to he closed through the usual and ordinary push button indicated in dotted lines at 4:0.

In Figs. l and 5a slightly modilied arrangement is shown wherein the master push button il effects the lrocking of, the rocked shaft 42 through the link and crank arm connections d3., said shaft 4t2, which is journaled to rock Within the casing Llei, has crank arms lthereon whichcarry contacter members 46 disposed in such relation with respect to the terminals 4,7 asv tol Close the circuit between thein When the shalt 4t2 is rocked by the manipulation of push button l1. This leaves the Vterminals 39 to, be individually and selectively closed by the manipulationo'l1 the usual and ordinary push but-ton i8 carryin,r contacter bars 49,

In Figs, G and 7 I have shovvn the master control button 50 operating a bar 5l disposed t0 extend crosswise of the various pairs of terminals152l and beneath the same so that the contactors 53, carriedthereby, may be withdrawn from bridging contact with the pairsof terminals 52 by the-action oi' gravity. This arrangement leaves each pair of terminals 52 to be selectively and individually closedA to each other by the ordinary push button 54 and its bridging contacter 55. y

In Fie'. 8 I have shown a modilied torni or' my invel tion which is very simple in construction, yet is exceedingly desirable and el'- iective in operation. In this type oi" construction the master contr-ol button.v 56 i; integrally attached to the operating` bar 57, which bar carries a plurality of springs 58, and contactors 59, tor closing all the circuits when' the inas'tercontrol button is pushed Vin andthe terminals 1l become engaged. Each pair of terminals 1l may alsovbe closed by a separat-e push'button 12, Afor actuating?r contactors lil in the manner shown and described in connection with F'igs'l, 2. 3 and 4t.

From the foregoing description it will he Aseen that I provide in variouspractical simple embodiments the push button control systein'which permits the selective and' individual control of the actuatinginotors, of individualdoors and at the Sametime perinits olL simultaneous control. ol' ther motors oi a plurality or group ot doorrmotors.

Having non;Y set forth the objects and nalill ture et my invention. and various constructions en'ibodying;v the princi ples thereof, what I claim as new and useful and ot my own invention anddesire to secure by Letters Pat- @niais Y v l. In a multiple vcircuit control device the conibination ot a plurality of circuit terminals, independent means for closing the circuit to each individual pair of contacts, a rod having` a plurality of contact lingers thereon for simultaneously closing' the cir- FRANK] PAUL`

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