US565882A - Mark wilks collet - Google Patents

Description

(No Model.)

. M. w. OOLLET. LOOK FOR SHAFT DOORS 0F ELEVATORS. No.- 5'65,8 8Z. Patented Aug. 18, 1896.

Fig.1 I

(I In" 1 I i W PA 9 O O K@ OH i F I UNITED STATES- PATENT OFFICE.

MARK WILKS OOLLET, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR, BY

MESNE ASSIGNMENTS, TO THE ELEVATOR SAFETY CONTROLLER COM- PANY, OF SAME PLACE.

LOOK FOR SHAFT-DOORS OF ELEVATORS.

SPECIFICATION forming part of Letters Patent No. 565,882, dated August 18, 1896.

Application filed December 20,1895. Serial No. 572,775. (No model.)

To all whom it may concern: by the dotted lines, and is held yieldingly in Be it known that I, MARK W'ILKS OOLLET, its upright position by the pressure of the a citizen of the United States, and a resident spring F, which catches on projection E.

of the city and county of Philadelphia and The operation of my device is as follows:

State of Pennsylvania, have invented a new As the arm A is pressed back the bolt O is 55 and useful Improvement in Locks for the moved out from engagement with the shaft- Shaft-Doors of Elevators, of which the followdoor and held out of engagement until the ing is a clear and sufficient specification, refcar has moved away, as will be described beerence being had to the drawings annexed. low, and then is moved back into engagement t The object of my invention is to unlock, auwhen the car is moved away.

tomatically, the doors of elevators as the cage Fig. 4. shows a form of device in which the comes opposite to them severally and to lock bolt O is slid backward and forward by the the same again automatically as soon as the arm B engaging with the pin 0. This arm is cage has moved away from in front of each attached to the spindle G, which turns in shaft-door. bearings on the bed-plate K. The arm A, 65

Figure 1 is a side elevation of my invented which is attached to the spindle G, comes into device in a form that is most convenient for contact with the operating devices on the car overhanging elevator-doors with the face and operates the device. The spring N acts plate removed. Fig. 2 is a side elevation of to keep the bolt 0 normally in engagement the opposite side of some of the interior mechwith the door and the projection or lug H 70 anism. Fig. 3 is a section on the line 00 y of prevents apressure on the bolt 0' from bend- Fig. 1. Figs. 4 and 6 are views of forms of ing the arm B. device applicable where the shaft-doors sit Fig. 6 shows a form of device which is simback slightly from the edge of the well; and pler than the above, The arm B, the arm Fig. 5 is a side elevation of part of acarriage, A, and the sleeve G are made in one piece 75 the lock, and shaft-door and adjacent strucand turn on the pin L. The end of the arm tures in cooperating positions B is shaped to engage the door, and is held Describing now in detail the best forms of in engagement by the spring F, secured to andevice of whichIam at present aware, I make arm T, projecting from the sleeve G", and to the arm A, which comes into contact with the the bed-plate K. The block or lug H takes 80 devices moving with the car for moving it to the doors thrust. release the catch engaging with the shaft- -The device for operating the arm A is as door, in one piece with the spindle G, which follows: Upon the car is placed a double inturns in bearings L L, and make also in one clined projection J, having the two inclines piece with the spindle G the arm B, which 2 2. As the car rises the incline 2 contacts 85 forms the means for connecting the arm A with the arm A, A, or A and pushes it back, with the devices engaging the door B. This holding the stop or bolt out of engagement part of the device consists of the bolt 0, with the door until the car is past,and allowing which in Fig. 1 is pivoted to the arm B by it tobe released graduallyby sliding oif the in- 40 the pin 0. In order to prevent the pressure cline 2. If the car stops when the arm A is 90 arising from an attempt to press back the pushed back, the door can be opened, and if door when the lock is on, I place, to strengthen the door be closed before the car moves it will .the device, the two lugs H H, secured to the be locked closed automatically so soon as the bed-plate K of the lock,on each side of the stop car moves away from the landing.

or bolt 0, to take the thrust from the back- Having now described my inventiomwhat 95 ward pressure of the door B. To allow the I claim, and desire to secure by Letters Patdoor to be pushed closed should it be accient, is-- dentallyleft open when the elevator is away, 1. The combination with the car, shaft,

I have pivoted the bolt 0 to the arm B, so that floor-door, of the locking device consisting of it can turn on the latter into the position shown the following parts, a bolt, engaging with said 10 door, lugs in engagement with the bolt, a pivoted lever consisting of an arm engaging with said bolt, and a curved arm engaging with a projection upon the car, and an inclined projection upon the car engaging with said projecting arm, substantially as described.

2. In a locking device for elevators, the combination of the arm A, the arm B and their spindle, the bolt 0 pivoted to the arm B the lugs H, II, the spring holding the arm B in position to bring the bolt G into engagement with the floor-door, and the floor-door, all substantially as described.

3. In a locking device for elevators, the floor-door, the arm A, the spindle G, the bed plate K, the lugs ILH, the bolt 0 pivoted to the arm B, the spring holding the bolt in position to engage the door, the spring attached to and acting upon said bolt 0, and the arm B all substantially as described.

4. The combinatiomwith the car, shaft, and

the floor-door, of a projection upon said car provided with an inclined surface in either direction, and a locking device engaging with the door consisting of the following elements, a part engaging with said door and a pivoted arm for operating same, a movable arm connected operatively to same and projecting into the path traversed by the inclined projection upon the car, and a lug engaging with the part engaging with said door and taking the thrust thereof when the same is endeavoi'ed to be pushed backward, substantiallyas described.

In witness whereof I have hereunto set my hand in the presence of two subscribing Witnesses.

MARK "WILKS OOLLET.

lVitnesses:

GEO. W. REED, AMos BONSALL.

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