US793846A

US793846A - Elevator.

Info

Publication number: US793846A
Application number: US22734704A
Authority: US
Inventors: Ludvig H Nielsen
Original assignee: Individual
Current assignee: Individual
Priority date: 1904-10-06
Filing date: 1904-10-06
Publication date: 1905-07-04
Anticipated expiration: 1922-07-04

Description

PATEN'TED JULY il, 1905.

L. H. N'IBLSSN.

BLEVATOR.

APPLIGATION FILED 00T. 1904.

No. 793Ql6. PATBNTED JULY 4, 1905.

L. H. NIELSEN.

BLEVATOR.

APPLIUMION FILED 00T. s, 1904.

3 SHEETS-SHEET 2.

I 4? @www mw PATENTED JULY Il, 1905.

L. H. NIELSEN.

BLEVATGR.

APPLIOATIQH FILED 00T. 1904.

3 SHEETS-SHBBT 3,

'lli'.l'wirniui trrlrrne Patented Jluly t, lgliiti.

trici-t SPEGEWCATIN forming part of Letters Patent No. 798,846, dated July el, 1905.

Application iiled October (i, 1904. Serial lilo. 227,347.

To al?, who/n, iff; 'ln/ty con/cera:

Be it known that l, LUDVIG lil. Nrnnsnu, a citizen of the United States, residing,I at Mc- Kees `Rocks, in the county oi Allegheny and State oi.' Alennsylvania, have invented certain new and useful improvements in Elevators, ot which the 'following is a specilication, ret erence being had therein to the accompanyingl drawings, 'forming part ot' the specilication, in which Figure l is a view in elevation, partly in section, ot an elevator-car equipped with my im proved door-opening' apparatus. Fig'. i is a detail view showiin;I the connection between the motor and the shitting` har. Fig. Z is a plan view ot a portion oii thc car, the doors beingl shown in section. liie. 3 is a iace view oi the doors in their closed position with the locking,l and shifting' mechanism adapted to he engaged by the actuating' mechanism mounted on the elevator-car. Fig'. dis a partial view similar to Fig'. il, showing; the piston oi" the cylinder extended to its limit of movement, the doors being' indicated as open. Fig'. 5 is a sectional detail view ot the cylinder. Fig. 6 is a tace view ol a modified construction of the door-shiftingshoe. Fig. 7 ia a cross-section on the line Vil Vil oi' llig. 6. Fig. 8 is a detail view ot' the lock for the operating mechanism. Fin'. 9 is a'sectional view on the line IX iK of Fig. Figs. l() and il are detail views oi' a modiiied term. of door shifting' lever.

My invention relates to improvements in apparatus or mechanism designed For the purpose oi opening' and closing,` the doors of elevator-shafts or other Similar structures, the invention being particularly designed to adaptation to the shafts ol passengerelevators.

A Afeature of importance and novelty in connection with the invention consists in means for engaging and lockirnc,l the elevator opera tive mechanism .so ae. to prevent the starting ot' the ca r until the doors have been cloned.

Referring to the iflrawings, Q 2 represent sliding doorsI olu the elevator-shalt, suitably mounted in any doei rahle manner,as hy means oi1 eheaveuvheela` or iloordninnera ot any pre ierrcd construction. llue olf auch doors, it

double is )rovided with a vertical livotallymounted i'langed shoe 3, having' a tilting bearu .ing fl on the door and limited range ot' movement against an abutment or Stop 5. '.lhe shoe is provided with an extended latch 7, arranged to engage a pin or abutment 8 by gravity on the other door, so as to securely loch both together, and it will thus he seen that they cannot he opened until the Shoe is iii-st partially tilted, as indicated in dotted lines in Fig. 3.

9 is a cylinder mounted upon the top oi the elevator-ca1', havinga fluid-actuated piston, to the rod i0 of which is secured a shitting arm ll, adapted in the vertical movement of the elevator to regiater within the sides oi the shoe when the elevator isstopped opposite to one oi the doorn. ,lhe arm l1. in n'lounted in any suitable elidinir cross-heini or `guides l2, and the moving' portion ol' the motor is provided with a hacliwardly-cxtcndiing har 13, connected to pieton Y1 0 orehiitinig' arm il, ae shown, arranged to come into contact with the downwardly-extendinn' lega)I of a bell-cranh level' la, so as to unlock a locl ing-har trom a notched segment l'i when the piston oi the cylinder is thrown hachwardly into ita initial petitionn as shown in liin. l. When the piston ie advanced, as in Fig. e. the har 13 travels forwardly away trom contact with the lever ifi, allowing latch l5 to drop into the notch 1G of segment 17, thereby preveutiin;v the Start ing oi the car either up or down until the doors are again closed. The cylinders are provided at each end with elongated slotted porta liti, with which connection is made, through suppii-nnental blocks lil, Afrom pipesl 9.0 2.0, leading.; lrom the controlling-valve Qi, supplied with (,sonatant pressure hy l'iexiole tuhe or connection 22. These long narrow slots tend to throttle the liuid in its eecape, thus cushioningr the pieton againet either end of the cylinder and preventiiug' shock or lcnocli'inn'. ll desired, cushioliinggr euhstance ol' any suitable material, as ruhher, or metallic springs may he inserted to accompliah the same object.

Vit will he understood that any other suit ahle motor may he used as a si lenoid-magnet desire to be limited to the particular motor shown and described.

As thus constructed it will be seen that when the elevator is brought into register between the flanges of the shoe 3 and stopped, the shoe being sutticieutlyv long to insure engagement, and pressure is applied behind the piston of the cylinder the arm ll will travel forward, first tilting' the shoe and unlocling the other door and then moving both doors open until it has reached the limit of its travel. Upon reversing the direction of the piston, arm 1l still being in register, the doors will be closed, ag'ain locking them together by latch 7 falling down by gravity, latch l5 having been raised out of engagement, whereupon the elevator may again be started up or down.

In Figs. l() and ll I have shown a detail construction of a modified form of shoe-en gaging' arm in which the arm 1l' is provided with a pawl extension Q8, pivoted at 29 and provided with a spring' device 30, arranged to hold the pawl normally extended. The arm is so constructed as to allow the pawl to be deflected to one side or the other, as indicated in dotted lines, upon meeting with any obstruction in a vertical direction in the elevator-shaft, but to be operative laterally to engage the flanges of the door-shoe in either direction to move the door.

In Figs. 6 and 'T I have shown a modified construction of the door wherein one of the flanged sides 23 is stationary, the other side 24 being' pivoted thereto and being' capable of a slight backward movement before coming into contact with a blocl; or abutment Q5, the movable part having secured to it a latch 26, arranged to engage and loch a pin 27 on the other door in the same manner as has been already described. In Fig. 3 I have shown means for opening the doors by hand, lconsisting of a handle 3l, mounted in a cam-slot 32 and connected with rod 33, which raises the latch 7 as the handle is drawn back to open the door.

Having described my invention, what I claim isl. rI`he combination in an elevator, of a sliding door, and a moving device for the door provided with a latch, an elevator-car, a motor mounted thereon arranged to engage the moving device, and means controlled by the movement of the motor for locking the stopping and starting mechanism of the elevator, substantially as set forth.

2. The combination with the sliding' door of an elevator-shaft provided with aflanged shoe, of a motor mounted upon the elevator-car provided with means for registering with and en gaging said shoe to move the door, means for stopping and starting the mechanism of the car, and means connecting the shoe-moving mechanism and the stopping and starting mechanism, substantially as set forth.

3. The combination with the door of an elevator-shaft provided with a tianged shoe, of a car, a fluid-actuated piston and cylinder mounted on the car, an arm connected therewith adapted to engage the shoe, a locking device arranged to engage the controlling mechanism of the car, and an element connected with the movable piston arranged to actuate said locking mechanism, substantially as set forth.

e. The combination with an elevator-car and a shifting door opening thereinto; of a cylinder' provided with a fluidactuated piston mounted on the car and provided with a doorshifting terminal, means mounted on the door arranged to be engaged by said terminal, a movable bar connected therewith, a locking'- arm, and a lever connected with said arm arranged to be actuated by said movable bar, substantially as set forth.

5. The combination with an elevator-car and a shifting door opening' thereinto; of a cylinder provided with a duid-actuated piston mounted on the car and provided with a doorshifting terminal, means mounted on the door arranged to be engaged by said terminal, a movable bar connected therewith, a loclingarm, and a lever connected with said arm arranged to be actuated by said movable bar, with controlling mechanism for the elevator provided with a locking device adapted to be engaged by said locking-bar, substantially as set forth.

In testimony whereof I atHX my signature in presence of two witnesses.

LUDVIG H. NIELSEN.

IYitnesses:

Janus MCC. MILLER, C. M. CLARKE.