US1164363A - Pivoted step for passenger-cars. - Google Patents

Description

G. B. KOHLER.

PIVOTED STEP FOR PASSENGER CARS.

APPLICATION FILED AUG. 6. I913- ]L,]L@%,363. Patented Dec. 14, 1915.

2 SHEETS-SHEET 1.

G. B. KOHLER.

PIVOTED STEP FOR PASSENGER CARS.

APPLICATION FILED AUG-5. I913. 1,16%,363. Patented Dec. 14, 1915.

2 SHEETS-SHEET 2.

of the passenger car.

FFTTJ.

GEORGE B. KO'B'LER, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE J. G.

BRILL COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENN- SYLVANIA.

PIVOTED STEP FORPASSENGER-CARS.

" Specification of Letters Patent.

Patented Dec. 1%, 15115.

Original application filed. April 9, 1913, SeriaLNo. 759,980. Divided; and. this appIication filed August 6, 1913. Serial No. 783,389.

To all whom it may concern:

Be it known that I, GEORGE B. Koi-ILnR, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Pivoted Steps for Passenger-Oars, (being a division of application Serial No. 759,980, filed April 9, 1913,) of which the following is a specification. I

This invention relates to certain improvements in mechanism for operating a step or steps at the side of a passenger car, preferably in conjunction with the means for operating the doors which close thepassage to and from the platform of the car. I V

The object of my invention is to simplify theconstruction of the means for operating the step so that it can be raised or lowered from the conductors or motormans station on the platform or car body.

In the accompanying drawings, Figure 1 is a sectional elevation on the line aa, Fig. 2; illustrating my improved step operating means; Fig. 2 is a sectional plan viewbn the line b?), Fig. 1, with a portion oftheplatform broken away to illustrate the cams; Fig. 3 is an inverted plan view of the cams for moving the step; Fig. 41- is a perspective view of the cams and connecting rods; Fig. 5 is an inverted plan view illustrating the step operating cams; Fig. 6 is a diagrammatic plan view showing the mechanism in the position in which the step is partly lowered and one door is partly closed; and Fig. 7 is a diagrammatic plan view showing both doors full open and the step lowered.

Referring to the drawings, 1 is the body 2 is the platform and 3 and 1 are the doors at one side of the platform. These doors may be at either the forward end of the platform where the conductor or motorman who operates them is stationed, or they may be located at the rear platform or at the center of the car, if desired. vIn the present instance, the doors extend the full length of the platform and the ingress passageway is separated from the egress passageway by a vertical post 5 and rail 6. The device in this case is operated by the conductor. At or about the center of the platform is a vertical shaft 7 mounted in a bearing 8 in the floor 9 and a bearing 10 on the rail 6. This shaft has an operating handle ll-of the Ordinary type and secured to the lower end of the shaft s acam 12 which controls the door operatmg mechanism. The door 3 is mounted on a vertical pivot 13. This door, in the present instance, is made in two sections. Thesectrons are'connected together by hinges and the outer section is guided at the upper end so'that the doors fold, as illustrated by dotted l nes, Fig. 2 and in full lines Fig. 7, but a single door may he used without departing from the essential features of the invention. The door4- is mounted on a 'similarpivot 13 andmay be double, the same as the door 3. Secured to the lower-end of each pivot rod 13 is an arm 14 located below the platform -9 and connected to each arm is a rod15 provided with a head 16 having an elongated slot therein and the shaft 7 extends through the slot, as clearly shown in Fig. 2. On each head 16 is a roller 17 which projects into the slot ofthe cam 12 which is secured to the shaft 7 so that, when the cam is moved, longitudinal movement is imparted to each head 16 and the doors are opened or closed. This construction is fully described and claimed in an application for patent filed by me on the 9th day of April, 1913, under Serial N 0. 759,980, of which this is a division.

The cam is so proportioned that when the shaft is turned in one direction one door will be opened in advance of the other according to the direction in which the shaft is turned, see Fig. 6, as, in some instances, it is desired to open one door and to allow the other door to remain closed. When it is desired to open both doors the cams are turned a full half revolution Fig. 7, but when they are turneda quarter revolution only one door will be opened while the other door will remain in the closed position, as mentioned above.

Extending under both doors is a step 18 pivoted at 19 to a'bracket'20 and on the shaft 7 directly under the cam l2,is another cam 21, as clearly shown in Fig. 3. On the pivot 19 is an arm 22 to which is connected a rod 23 attached at 24; to a sliding slotted rod 25 adapted to suitable hearings on the under side of the car platform. A. spring 26 on an extension of this rod is'located between the bearing 27 and a head 28 on the extension, as illustrated inlFig. l, and acts as a counterbalance for the step.

29 is a roller on the rod which extends into the slot of the cam 21. The extension of the shaft 7 passes through the slot in the rod 30 and acts as a guide for the rod. The rod is held in place by a plate 31 in which the end of the shaft 7 is mounted. The cams are so shaped that on the first movement of the shaft 7 in one direction'to open one door the step 18 will be lowered and when moved in the opposite direction to openthe other door the step 18 will also be lowered. The

cams are so proportioned that when the doors are in the open position the step will not be raised until the doors are closed, or

partly closed, according to the set and shape of the cams.

In order to lock the doors in the closed position and the-step in the raised position,

7 I notch the cams 12 and 21 so that the rollers on the slotted rods will rest in these notches whcn the doors are closed and the step is 'aised.

The rollers are held in the notches due to the flexibility of the connecting rods. I have described the rods having rollers extending into the slots in the cams, but it will be understood that in some instances the pins may not be provided with a roller. It willthus be' seen that I am enabled to use a single step in front of two doors and so' that the step will be moved into position on the first movement of either door so as to provide a broad step for passengers to enter or leave the car, avoiding the liability of a passenger missing the step which sometimes occurs when a narrow step is used at each dooiu,

i The invention can be carried out to operate a step in front of a single door, but usually, in passenger cars of the present type,

ating shaft extending through the platform;

a cam on said shaft having a groove; a sliding rod having a slot therein through which the shaft extends; a roller on the rod extending into the groove of the cam; a spring on the. rod located between a bearing and a head on the rod; a rod connected to the slotted rod and to an arm on the pivoted step so that, as the cam is turned, the step will be raised or lowered.

3. The combination in a passenger car, of

a platform; a door located at the edge of the platform; a step pivotally mounted at the side of the platform; an operating shaft extending through the platform and having two cams thereon; means actuated by one of said cams and connected to the door, whereby the door is operated; and means actuated by the other cam and connected to the step so that when the cam is turned the door will be opened and the step will be lowered or the door will be closed and the step will be raised.

4. The combination of two doors; pivots therefor, said doors being arranged side by side; a step pivotally mounted and extending below the doors; an ope 'ating shaft having two grooved cams thereon, one-half of each cam being a duplicate of the other half; rods having rollers engaging one of said cams; each rod being connected to a door; and a single red connected to the step and having a roller extending into the groove in the other cam, the parts being so proportioned that when the operating shaft is turned one-fourth of a revolution in one direction to open one door in advance of the other, the step will be lowered and will remain lowered until the other door is opened and if the shaft is turned in the opposite direction the last mentioned door will be opened and the step will be lowered followed by the opening or the other door.

5. The combination in a door and step operating means, of two doors; a step common to both doors; a single handle; and means connecting the handle to the doors and step sorthat either door may be operated in advance of the other and the step will be operated with either door.

(3. The combination in a door and step operating means, of two doors; a single shaft; means for turning the shaft; means actuated by the shaft and connected to the doors; a step common to both doors and also connected to the shaft so that either door may be operated in advance of the other according to the direction of movement of the shaft, the step being operated with either door.

7. In a passenger car in combination, a. platform; separate entrance and exit side doors for said platform; a movable step; means to operate each side door independently; and connections from said means to said step whereby the step will be moved to operative position whenever either or both doors are opened.

8. In a passenger car in combination; a platform; separate entrance and exit side doors for said platform; a movable step; means to operate each side door independently; connections from said means to said step whereby the step will be moved to operative position whenever either or both doors are opened; and means to move said step to inoperative position when the second door is closed.

9. The combination of a Vertical shaft; a

grooved cam thereon, one Wall of the cam In testimony whereof, I have signed my being notched; a pivoted step a sliding rod name to this specification, in the presence of having a pin engaging the cam and arranged two subscribing Witnesses.

to enter the notch; means connecting the rod GEORGE B. KOHLER. With the step, the pin being located in the Witnesses:

notch when the step is in the raised posi- HENRY C. Esmns,

tion. H. F. MCKiLLIP.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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