US362653A - Elevator - Google Patents

Description

(No Mod eL) 2 Sheets-Sheet 1.

A. G. PAGE.

ELEVATOR No. 362,653. Patented May 10, 1887.

Fig.1. V 2 Fig.2.

Witnesses: i a Inventor:

N. PETERS. Pnawulho m har. Waslliligion, ac,

(No Model.) 2 Sheets-Sheet 2.- ALG. PAGE.

' ELEVATOR. N0. 362,653. Patented May 10, 1887.

JUIIl UNIT D STATES I PATENT OFFIC ALBERT G. PAGE, OF SAN FRANCISCO, CALIFORNIA.

ELEVATO R.

PECIFICATION forming part'of Letters Patent No. 362,653, dated May 10, 1887.

Application filed July 9, 1886. Serial No. 207,623. (No lnodcl.)

upper support of the cage and from the spring;

also,trap-doors and devices for opening them, for letting the cage pass up and down the well,

and cushions on the trap-doors to prevent or deaden the noise when closing. I attain these objects by the devices and mechanism illustrated in the accompanying drawings, in which Figure 1 is a vertical side elevation of the Well, the elevator-cage and mechanism, the trap-doors and devices for opening them, the guide rods or pipes for holding the cage in position, the check-clutches provided to prevent the cage from falling, and the rope or cable by which the cage is hoisted or lowered. Fig. 2 is a vertical front section of the well, the elevator-cage, guide rod or pipes, the clutches, trap-door, and devices for opening same. Fig. 3 is a vertical section,l.ooking down, of the guide rod or pipe for guiding the cage, the bracket for supporting and holding the guide in position, and the runners or friction-wheels as secured to the uprights of the elevator-cage.

Fig. 4 is a horizontal section. Fig. 5 is a front view of the clutches and the guide-pipe. Fig. 6 is a vertical section, looking down, of the clutch and guide-pipe. Fig. 7 is a side view of portion of the standard H and pivoted slotted link 1. Fig. 8 is a front view section of the guide-pipe and its support.

Similar letters refer to similar views through out the several parts.

Referring to the several views, letter A shows the elevator-well; D, the cage; B,,the

guide rods orpipes; C, the rope or wire cable; E,the trap-doors; F,the clutch; H,uprights on cage, with curved ends shaped to work on 5o levers for opening trap-doors; I, the several floors of the building.

The elevatorcage D is held suspended,

hoisted, and lowered by rope or wire cable 0. This cable is secured to the top of the cage and on the spring K, which is similarly concable 0 should ever become disengaged or loose its tension on the spring K. Whenever the tension of the cable is released on the spring, it draws downward to its natural position,when the side rods, g,which are connected with the ends of the spring, are pulled upward, thereby closing the clutches on the guide-pipe B, and the weight of the cage,pressing heavily on the outer arms or levers and mechanism of the clutch, will stop the cage effectually and prevent its falling.

I construct my clutch in the following manner and form, as shown in Figs. 5, 6: H are the upright standards secured to the cage; 71, hinges; F, clutch or brake-shoe; 7c, slotted hole hole loosely. The clutch or brake-shoe F is formed to grip and cover as much surface of 8;

the pipe B as possible. shoe F is made of metal.

For securing the guide rods or pipes B inside the well I have secured to it brackets a. The feet of these brackets are secured with screws or bolts to the beam of each. The brackets are constructed and secured in such a manner as to leave suitable space around the pipe B for working the clutch.

To the inner surface of and between the uprights H, near their top and bottom, I have attached suitably constructed and situated antifriction rollers, 0, Figs. 1, 2, 3, which impinge on pipe B. Between these uprights the clutch or brake-shoes F and mechanism are properly secured.

For the purpose of preventing adraft of air in the well in case of fire, I have provided suitably constructed trap or closing doors, which I prefer to make of iron, to each floor, and suitable devices for opening same whenever the cage passes up or down the well;

E shows the trap or closing doors; l,thc pivot'al or hinging point of trap or closing door;

The clutch or brakeb, the weights resting on the end of trap or closing door, provided for the purpose to counterbalance the weight of the larger section'of the trap or closing doors. f are rubber cushions secured to the middle of the trap or closing doors, and are provided for the purpose to obviate the noise when closing the trap or closing doors. For opening the trap doors E by means of the uprights H, I have constructed arms 0, and pivoted same at point in to the side walls of the well near the trap or closing doors, in such a manner that the lower section of the arm, which is provided with a friction-roller, 71, presses against and lifts the trap or closing doors 1%. \Vhcnever the cage D passes upward, then the upper curved sections of the uprights H press against the friction-rollers d, which are secured to the arms 0 near its center,thereby pushing the lower ends of the arms outward. The friction-rollers n of the arms,pressing against the lower surface of the trap or closing doors,will lift them and allow the cage to pass between them and upward, and when the cage has passed the trap or closing doors they will close again by their 2 5 own weight,and when the cage is passed downward the operation is the same as described, with the only difference that the curved bottom sections of the uprights I-I press against the friction-rollers (1.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. The combination, with the uprights H, of the clutch or brake-shoes F, pipes B, antifriction rollers e, arms i, having slotted openings, pins it, working therein, spring K, and rod 9, substantially as set forth.

2. The combination of the trap-doors E, provided with rubber cushions f, weights I), and lever-arms 0, provided with friction-rollers d a, and the elevator-car having wedgeshaped projections, substantially as set forth.

ALBERT c. PAGE. [1 5.]

Witnesses:

ALPHONSO B. SMITH, J on): M. BRYAN.

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