US328294A - Elevator - Google Patents

Description

Pateted Oct. 13, 1885.

Imm-INTER im I d d a; R. F. DAMJING.

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i i l UNITED STATES i `i i til ift PATENT OFFICE.

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HENRY M. DARLING AND ROBERT F. DARLING, OF LINWOOD, OHIO.

ELEVATO R.

SPECIFICATION formir'ig'partl of Letters Patent No. 328,294, dated October 13l 1885.

Application filed January 26, 1R85. Serial No. 153,981. (No modell To @ZZ whom it may concern: n

Be it known that we, HENRY M. DARLING and ROBERT F. DARLING, beth citizens of the United States, residing at Linwood, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Elevators, of which the following is a specification.

Our invention consists in devices by means of which the elevator-car may be stopped at the proper place for each landing; in devices whereby the elevator-door may be automatically opened as the car reaches the landing and closed as the ear leaves the landing, and in means for throwing out of engagement the mechanism which actua-tes the door when it is desired to pass a. landing without stopping.

In the drawings, Figure lis a front view showing an elevator-car embodying ourinvention as it is about reaching a landing. Fig. 2 is a section on the line x as of Fig. l, showing in elevation mechanism which stops the car and opens the door. Fig. 3 is a detail of a portion of the mechanism shown in Fig. 2.

A represents an elevator-car, and B the door of the car.

O is the actuating rod or cable, provided at suitable points'wth stops or buttons c, one for each landing. These buttons should be made tapering at the top and bottom to permit them to readily pass throughthe rings a a, secured to the car, which serve as guides for the cable or rod C. The side of the car in which the dotli is placed is preferably made with a double wa i i At a suitable point in the wal-l of the car, in the rearof the travel of the door, is mounted a shaft, D, having at its outer end a forked crank-arm, d, adapted to engage with the actuating rod or cable. To the other end is attached a suitable actuating device, shown here as a hand-wheel, d', hereinafter called the shipping wheel.7 The actuating rod or cable, sometimes called the hand-rope, may be connected with belt-shifting mechanism of the type shown in Letters Patent No. 302,325,I

granted us July 22, 1884, for, improvement in elevators, or with a brake, as in the well-t` known Otis elevator, or with any devices for starting and stopping the elevator-car which are adapted to be actuated by the upward and downward movement ofthe hand rope or rod.

Vhen it is desired to stop at a landing, the ,shaft D is revolved by means of the shippingwheel d until the forked arm d embraces the g D whenever releasedfrom Contact with a button on. the actuating-rod.

E is a bent lever, fulcrulned at e, the long end of which is provided with a pin, c', adap ted toengage with a notch, b, in the free end of an arm, 11. whose other end is pivotallyat taehed to the car-door. The short end of the leverarm E is adapted to engage with and be actuated by a series of cams, F, one for each landingupon the walls or uprights of the,ele A iJgitor-'well in the path of the lever-arm. The lower face of these cams should slope downward. The upper face is preferably, but not necessarily, substantially horizontal. In the form shown the short end of the lever-arm carries a ,weighted roller, e. As the car moves the`roller is carried therewith up and down the elevator-wall at a slight distance therefrom. As thecar reaches a landing the roller engages with a cam, and, together withl the short end ofthe lever-arm,is forced inward by the'eam, thus moving the long end of the lever-arm outward and opening the door` of the car. The cams should be so placed that the door will be fully opened as the car stopsV at the landing,and held open until the car has again started, when the roller, which should be made sufficiently heavy to overcome the resistance of the car-door, returns to its nor-.

mal position, thereby closing the door.

.',As it is often desirable to pass a landing without stopping, and the door should always he closed while the car is in motion, provision should `Joe inade for throwing the mechanism which opens and closes the door out of engagement when a floor is to be passed without stopping. For this purpose a lug, d, is mount-l ed upon the opposite side of the shaft D to l fr i l* 2 l the cranhL-allfm d ilin 4the s mul ifelrticall Iplane with the mit b', the une oltrave ofvwhich is immediately above the sh ft D. When the forked arm is in engagement with the actuating-rod, the lug d will be thrown out of the path of the arm b; but when the forked arm is in its position of rest the lug will assume a perpendicular position, thereby raising the arm b and throwing it out of engagement with the pin e', allowing the car to pass the landings wi hout opening the doors until the shaft is revolved and the forked arm again thrown into engagement with the actuating= rod.

To prevent the lever E from being thrown out of position by the weight of the roller when it is disengaged from the arm b', stop, F is fixed at a suitable point in the car-wall. It is obvious that a spring may be used in place of a weight er lweighted roller to return the'lever-arm to its normal position. y

We do not limit ourselves to the specific means herein shown for connecting the leverarm with the door, as it 's apparent that a skilled mechanic could readily supply one or more substitutes therefor.

Some of the features herein described and claimed were shown and claimed in our application for Letters Patent for an improvement in elevators, filed October 16, 188e, Serial No. 145,631, andthe present application, so far as it relates to said features, is a continuatien of said former application.

1. As an improvement in elevators, the combination, substantially as described, of one or more cams with a lever connected with the door ofan elevator, and at its free end adapted to engage with and be actuated by a earn as the car reaches a landing, thereby opening the door. I

2. As an improvementin elevators, the combination of one or mere cams and a lever connected at one end with the door of an elevator, adapted at its free end `to `salga e with and be actuated by a cam, thereby opening the door, and automatically restored to its normal position as the car leaves the landing, thereby closing the door.

3. As an improvement in elevators, the combination of one or more cams, with a lever connected at one end with the door of an elevator, and carrying at its free end a weighted leaves the landing and the roller passes the cam, thereby closing the door.

if; Il Il i lll l i 4. rlhe combination of one or-more cams and a lever link-connected to the door of the elevator, and adapted at its free end to engage with a cam as the car reaches a landing, thereby opening the door, with a shipperadapted to throw the mechanism which opens the door out of engagement when a door is to be passed without stopping.

5. The combination, with a series of cams upon the wall of an elevator-well, of a bent lever, one end of which is linkconnected to the door of the elevator-car, carrying at its free end a Weighted roller adapted to engage with a cam as the car reaches a landing, thereby opening the door, and to return to its normal position as'the car leaves the landing and he roller passes the cam, thereby` closing the oor.

6. The combination, with a series of buttons upon the, actuating rod or cable of an elevator, of a shipping-wheel mounted upon a shaft, which also carries a forked crank-arm adapted, when said shippingwheel is rotated in one direction, to embrace the actuating rod or cable to engage with the buttons thereon, thereby stopping the car, and when rotated in the opposite direction to engage with the opposite face of the button, thereby starting the car.

7. The combination of a series of cams upon the wall of an elevator-well, and a lever adapted at one end to engage with an arm pivotally attached to the door of the elevator-car, with a shipping-wheel adapted when at rest to hold the pivoted arm out of engagement with the lever, .substantially as and for the purpose specied.

8; In combination with a series of buttons upon the actuating rod or cable of an elevator, a series of cams upon the wall of an elevator- Well, a lever adapted at one end to engage with Said cams, and at the other end adapted to engage with an arm pivotally attached to the door of an elevator-car, a shipping-wheel mounted upon a shaft carrying al forked crank -arm adapted to embrace the actuating rod or cable, and when in position to engage with the buttons thereon,l and carrying also a lug adapted, when in its position of rest, to hold the pivoted arm out of engagement with the lever, substantially as and for the purpose specified.

HENRY M. DARLING. ROBERT F. DARLING.

Witnesses:

FRANK W. BURNHAM, LEONARD VAssALL.

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