US280670A - reynolds - Google Patents

Description

(No Model.)

3 Sheets-Sheeb 1.

P. M. REYNOLDS 8v C. TEWKSBURY.

ELEVATOR.

"mill Patented July 3, 1883.

39; ww K Sf E @llllll wufdr @eo, 646mb? (No Model.) 3 Sheets-Sheet 2.

F. M. REYNOLDS 8v G. O. TEWKSBURY.

- ELEVATOR. No. 280,670. Patented July 3, 1883.

UNITED STATES PATENT OFFICE.

FRANK M. REYNOLDS AND GEORGE C. TEWKSBURY, OF NEWARK, J. I

ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 280,670, dated July 3, 1883.

Application filed April 24, 1883.

(No model.)

.To all whom it may concern Be it known that we, FRANK M. REYNOLDS and GEO. O. TEWKSBURY, of Newark, in the county of Essex and State of New Jersey, have invented a new and useful Improvement in Elevators; and we do hereby declare that the following is a full, clear, and exact description of the same.

Our invention relates to improvements in elevators, and more particularly to that class of elevators for which George C. Tewksbury obtained Letters Patent of the United States numbered, respectively, 255,049, 255,050, and 255,051. The general object of the construction shown in these patents is to place the moving car under the complete control of an operator upon any floor of a building in which it is situated, so that the car can be started from any floor and stopped automatically at' any other floor, or at the extreme end of its route. The mechanism described in these patents consisted, essentially, of a rod running the entire length of the elevator-well, and

having at each floor of the building a radial projection; of means for rotating this rod to bring any one of its projections in line with a stud on the elevator-car; of an index so arranged in relation to the rod that the moving of the pointer or lever to any particular number on a scale would cause the projection at the floor corresponding to that number to be set in the path of the car; and, finally, of beltshipping devices connected to the rod, and means for operating such devices by moving the rod vertically, and thereby starting and stopping the car, the movement of the rod in starting the car being controlled by an operator at any floor, and that in stopping such car being automatically accomplished when the projection on the rod is struck by the stud on the car. A suitable automatic brake mechanism is also employed. It is desirable to run these elevators at as high a rate of speed as possible, and it has been found that under some circumstances-the car stops with a sudden jolt andjar. This is particularly to be avoided in passengerrelevators, and it is the principal object of the invention now to be described.

bining with a car and suitable elevating mechanism a vertical rod having both a longitudinal and rotary movement, a lever, operating also as an indicator, connected to such rod, and an auxiliarystopping and starting device, not upon but connected to such rod and operated by its movement;

It consists, moreover, in the peculiar 0on struction, and in the various novel combinations of the operative parts, as fully hereinafter described and claimed.

In the drawings, Figure 1 is a side elevation. Fig. 2 is a plan view. Fig. 3 is an end view. Fig. 4 is a section on the line y 3 Fig. 5 is a view of the indicator and starting-lever.

In these drawings the car, the drivingshaft, and belt-pulleys, and the hoisting apparatus are not shown, as they are notessential to a proper understanding of this device, and are not materially different from those shown in the patents referred to;

A is a rod running the entire length of the elevator-well. It is swiveled at the bottom in collars M M, so as to have a rotary motion, and is also mounted on a trunnion of the crank G (hereinafter referred to,) so that it can move longitudinally.

Ais a short auxiliary rod j ournaled in brackets, B, attached to the frame-work. A long spur-wheel, B, is keyed to the shaft A, which meshes with a pinion, T, on the rod A, the wheel B being long enough to permit the extreme longitudinal movement of rod A without disconnecting the gears. At the bottom of the rod A is, keyed a bevel-gear wheel, 0.

D is a horizontal shaft, upon one end of which is splined abevel-gear, G, which meshes with the gear 0 on shaft A. The spline or feather permits the shaft D to slide freely.

Secured rigidly to the shaft D are radial projections E, extending in different directions and corresponding innumber to the stations or stories of the elevator-well. These projections are arranged on the shaft at suitable in tervals between safety-collars F at the ends. In the drawings, Fig. 2, two only of such projections are shown.

I is a shaft extending parallel to shaft D, and adapted to be driven in any suitable manner from the driving-shaft and to be set in motion when the belt is on the tight pulley. It is journaled in suitably-supported hangers K, and between such hangers is threaded for its entire length. A nut, J, is mounted on this screw-shaft, and is caused to travel upon it, it being steadied by a guide-rod, X, passing through a guide, Y, on the nut. A radial. projection, J, on the nut J strikes one of the projections E on the shaft D as the nut travels along the threaded shaft and moves the shaft D forward.

The shaft D is connected to the belt-shipping rod in the following manner: It It are transverse rock-shafts, Figs. 1 and2, on which are keyed cranks (r G, connected at their upper ends to the rod H, which, by a fork, I), Fig. 2, operates the shipping-rod E. The rod E is connected in any suitable manner, so as to ship the belts from the tight to the loose pulley, and vice versa. It will now be readily understood that if the shalt I) be connected to the transverse shaft B, so that its sliding movement will rotate the latter, such movement will shift the belts and either stop or start the ele vator, according to its direction. This connection is made by means of the segment 0, keyed to one of the shafts R and engaging with the cylindrical rack N upon shaft D, Fi 1-a construction which permits the free revolution of the shaft 1).

The mechanism described accomplishes the automatic stoppage of the elevator.

The devices for starting the car and placing it under the control of the operator will now be described.

It was remarked before that the rod A" was mounted on a trunnion of the crank l". This crank is keyed to one of the shafts R, Figs. 1 and 3, so that the vertical motion of the rod will operate the belt-shippers. The devices for moving the rod are shown in detail in Fig. 5. A long pinion, 12, is keyed on the rod, with which engages a segment, 13. The pivoted lever 9, which moves the segment, projects through a slot in the indicator-case, attached to the wall of the building near the door of the elevator, and can be moved horizontally along a row of numbers 011 the case, which numbers correspond both to the number of floors and to the number of projections E on the shaft I); and these numbers and the connected mechanism are so arranged that if the lever be turned to a point opposite any one of them the resulting motion of the rod A will, through the rod A and the bevel-gearing, bring the corresponding projection, E, on shaft 1) into the path of the nut J 011 shaft I. The elevator is now ready to start, and the mechanism i'or that purpose is also shown in Fig. 5. A lever, 10, is pivoted to a hanger, 11, or in any other manner, its short arm being swiveled to the rod A by a sleeve, 15, held. between collars 14 on the rod, itbeing connected to the sleeve by a link, 16. This construction, while it permits the rod A to rotate independently of the lever 10, also enables the op erator to raise such red, the effect being to raise the crank G, rock the shaft 1t, and shift the belt to the tight pulley. Simultaneously with the starting of the hoisting mechanism the nut J commences to travel along the shaft until it comes in contact with the projection E. The shaft 1) is moved forward and the shipping-rod impelled in the opposite direction by the rackscgment N O, gradually retarding the speed of the car, and finally st0pping it altogether. The safety-collars F on shaft E are for the purpose of shiftingthe belt and stopping the car at either end of the well in case the projection E should break and the car continue its motion past the floor at which it should have stopped.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-- 1. In an elevator, the combination of the following elements: a moving car and proper hoisting apparatus, a vertical rod extending throughout the length of the well, indicating devices, means for rotating and moving longi tudinally the said vertical rod, and an auxiliary connected. mechanism controlled by the movement of said vertical rod, and so arranged in relation to the indicating devices that the car will stop automatically at a predetermined station or floor.

2. In an elevator, the combination of a moving car and hoisting apparatus, a vertical rod having both rotary and longitudinal motion, a traveling device operated by the drivingshaft and moving in a certain relation to the motion of the car, a sliding shaft connected to a belt-shipping rod and having projections corresponding to the floors in the building, and an indicator connected to such shaft, to bring the projection corresponding to the tie termined stopping- )lace in line with the said traveling device, whereby the car-is automatically stopped at the proper point.

3. Combined with a vertically'moving elevator-car, an. auxiliary device traveling in a certain relation to the movement of the car, and arranged by a connected mechanism to stop such car at a predetermined point.

4-. The combination, with the rod A, having both sliding and rotary motion, of the sliding shaft D, having radial projections, the screw-rod 1', connected to the driving-shaft, the traveling nut J, and the shipping-rod.

The combination, with the red A", of the auxiliary rod A, the shaft D, geared thereto, and having both a sliding and rotary motion, the radial projections E, the screw-rod I, the traveling nut J the rock-shafts R, geared to the shaft 1), the cranks G, and the shippingrod.

(5. In an elevator, the combination, with the rod A", journaled 011 a trunnion of .the crank G, of the operating-lever 10' and the beltvice moving in a certain relation to the moveshipping device. ment of the car and under external control I 5 7. In'an elevator, the-shaft D, having both and regulation, whereby the movement of the sliding and rotarymotion, in combination with car'is controlled and regulated, substantially 5 the shaft R, the segment ,0, the cylindrical as described.-

rack N, the crank G, and the shippingrod. In testimony whereof We have signed our 8. Combined with the elevatorcar and names to this specification in the presence of 20 means, substantially as described, for starting two subscribing Witnesses.

and stopping it, the safety-collars F on the FRANK M. REYNOLDS. IO shaft D. GEO. O. TEWKSBURY. 9. The driving-shaft of an elevator, hoist \Vitnesses:

ing apparatus, and a'moving ear connected E. L. PRICE,

thereto, in combination withan auxiliary de- S. J. KENNY.

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