US664983A - Elevator. - Google Patents

Description

No. 664.983. Patented Ian. I I9 I T.L. TINBHEB.

ELEVATOR.

' (Application med July 7, 1900.

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(No Model.)

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n. 664,983. Patented Jan. I, I901.

T L. Tl-NCHER.

ELEVATOR.

(Application am .m 7, 1900.; (No Model.)

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No. 664,983. I Patented m. I, 1901.

T. L. TINCHER.

ELEVATOR.

(Applicltion filed. July 7, 190 0.)

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I W// x 3 WWW mm a UNITED STATES PATENT Drrrcn- THOMASIL. TINCHER, OF CHICAGO, ILLINOIS.

ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 664,983, dated January 1, 1901.

Application filed July 7. 1900.

tion.

My invention relates to elevators in which traveling batches are carried, one series above the elevator-car and another below, closing the elevator-shaft automatically on a level with the several floors as the .car ascends or descends.

One object of my invention is to close the shaft on a level with'each floor with a light impervious strong fireproof hatch without imposing any substantial burden upon the elevator mechanism, thus avoiding the draft up elevator-shafts, which accelerates and communicates fire from one story of a building to another, preventing persons from falling down the shaft, and simplifying the problem of heating by preventing the escape of heat from the lower stories to those above.

Another object is to provide mechanism for automatically locking and unlocking each hatch at its proper floor without shock or jar to the car. I

A further object is to provide means for holding the hatches positively in position in the shaft independent of friction by a mechanism which may be easily adjusted to chim Bey-shaped shafts or to shafts the walls of which have sunk out of parallel and which shall make it impossible for the hatches to jam or stick so long as an ordinary elevatorcar can operate in such shaft.

A further object is to provide means for shipping and unshipping the upper series of hatches at the top of the shaft when this is desired.

With the above and other objects in view my invention consists in the novel construction, combination, and arrangement of parts to be hereinafter more particularly described, and specifically pointed out in the claims.

In describing my invention reference is had to the accompanying drawings,forming a part of this specification, wherein like letters and.

Serial No. 22,873. (No model.)

numbersof reference indicate similar parts throughout the several views.

Figure 1 is a vertical section through a building of several stories,showing my device in place. Fig. 2 is a plan section on line 2 of Fig. 1. Fig. 3 is a rear elevation on line 3 of Fig. 1, showing one arrangement of the weights which operate the several hatches.

Fig. 4. is a sectional view of the shaft, showing the shoes which operate the spring locking device in elevation. Fig. 5 is a horizontal section through the elevator-shaft, showing one of the batches and the arrangement of slots. upper series of hatches and the arrangement of slots therein. Fig. 7 shows the arrangement of slots in the lower series of hatches. Fig. ,8 is a cross-section 'on the line 8, Fig. 5, showing one of my methods of constructing the hatches. Figs. 9 and 10 show my device for shipping and unshipping the upper series of hatches at the top of the shaft,.Fig. 9 being a section on the line 9, Fig.1. Fig.'l1 is a cross-section of the bolt and crank along line 11 in Fig. 10. Fig. 12 shows my sprin gcatch or locking device. Fig. 13 shows in perspective one of the stops for arresting the hatches. Fig. 14 is a cross-section on line 14 of Fig. 12. Fig. 15 is a side elevation showing one of the hatches locked in position by the spring-catch at its proper floor.

In the drawings, A denotes the elevator-car; B B B B the walls of the elevator-shaft; O (l (J 0 the several floors in the building; a, b, and c, the series of hatches below the car; a b c d, the series above the car. a -is the counterbalance to hatch a, b to plate b, c to hatch c, &c. Each weight or counterbalance is connected to its proper hatch by cables a,

b 0 running over suitable pulleys at the top of the shaft and passing through the perforations a b 0 Fig. 5.) 7 These weights or counterbalances are sufficient each to lift the hatch to which it is connected and cause it to lie snugly 9 Fig. 6 is an elevation showing the (Shown more particularly in IOO to the car by the upright and downright bolts 01' posts It 72. 72, 71;. The elastic cushions 1; i i '11 t, 850., are disposed at the corners of the framework and at intermediate points thereon.

1 and 2 are guide-tracks on the walls B and B, sliding in slots 3 and 4 of each batch.

D D D are three of four rounded or tapering shoes fastened to the car, two on each side, in such a way as to project upward and downward from the floor-level of the car approximately parallel to the walls of the shaft, tapering or deflected inward at their ends and adapted to pass freely through the slots 5, 6, 7, and S of each hatch, as shown in Figs. 4 and 5. Besides operating the spring looks or catches, as hereinafter shown and described, these shoes serve to hold the lower series of hatches in perfect position in the shaft and tend to prevent sticking or jamming.

On the walls B and B on alevel with each floor of the building are the series of stops 9: cc and the series y y, so disposed that at a level with any given iioor the pair 00 0c are slightly nearer together and each nearer the medial line of the wall B than the pair m 0.3 on the floor below, and the same is true of the series 1 3 on the wall 13.

As the lower series of hatches rises with the car, impelled by the counterbalances a b 0 the hatch a is arrested by the stops 00 0c and y y at the level of the floor while the hatches b and 0, being slotted at 9 and 10 next to the wall B and also at 1.1 and 12 next to the wall B", avoid this set of steps; but the slots 9 and 10 and 11. and 12 of hatch b, not being in alinement with the set of stops so a," and 1 y on the floor O since the stops at w are slightly nearer than the stops at C to the medial line of the wall B and y 1 the medial line of B", plate I), is therefore arrested at the floor C the hatch c avoiding this second set of stops by reason of the greater lateral enlargement of slots 9 and 10 and 11 and 12 of said hatch. Inv this manner each hatch will be stopped at its proper floor only. While I have shown in my drawings only three hatches in the lower series, a greater or less number will be used according to the number of floors in the building.

Figs. 12, 14:, and 15 show in detail my looking device, a front elevation of the same on the wall 13 appearing in Fig. 1. This locking device or spring-catch is set into the walls B and B on a level with each floor. I prefer to use four catches to each floor. In Fig. 12, e is the operating-arm of the spring-bolt G, rounded or mounted with a roller f at its end, and normally held in projection into the shaft and into a portion of thepath of the shoe D by the spring F. The supportingarm g is also held normally in projection into the shaft by the spring F, but does not enter the path of the shoe D. Catch E is adapted to be countersunk and fastened on the walls of the shaft by means of the casing and screwplate shown in Fi 12.

The elevator-car is operated in the ordinary way by cables and pulleys, as shown in Figs. 1 and 2, and as it rises the lower series of hatches, carried by the weights (t b 0 will follow until floor C is reached, when the first set of stops x and 11 11 will take off hatch a, as heretofore described, and allow I) and c to pass, while bolts G G Gr" G (which, by reason of the engagement of the tapering or rounded tops of the shoes D D D D" with the arms a e e e", have been pushed back out of the shaft) will be thrown into normal position by springs F I F F as soon as the shoes D D D D pass and will engage the hatch a, thus looking it securely in place on a level with floor 0 In the same manner the stops and catches on succeeding floors will arrest and lock thei r proper hatches. In Fig. 1 I have shown hatch a. closing the garret of the shaft. As the car rests on a level with the top floor O, the upper series of hatches are stacked in series 1') c (l upon the elastic buffer H and the lower series of hatches locked, each at its proper floor, by catches E E E E. As the car descends the shoes D D D D, passing through slots 0, 6, 7, and 8 of the top hatch of the lower series, engage with the rollers ff f f on arms 8 c c e, springs F F F F are forced back, the bolts G G G release the hatch, and the descending car forces it downward on the elastic buffer H. In a similar manner the hatches below are released and forced downward into the bottom of the shaft. Each one of the upper series of hatches avoids the spring-catches by means of slots 5 6 '7 8 in alinement therewith. Each is guided by tracks 1 and 2,slidingin slots 3 and aalescends by gravity, and is forced up by the elevatorcar. The steps a; a, y g on floor 0 arrest and support from below hatch a, which hatches b and 0 pass by means of slots 9 and 10 and 11 and 12, the slots on hatch Z) being narrower than those on hatch c. The system of slots in the upper series is similar to the system in the lower series, and each hatch is arrested and held at its proper floor by the stops 0: x and y 3 there being no necessity to lock these hatches in position, as they are not counterbalanced, but raised by the car and lowered by gravity.

When it is desired to carry lumber or other freight projecting above the top of the car, theupper series of hatches may be held at the top of the shaft by means of the device shown in Figs. 9, 10, and 11, in which is a lever pivotallymounted at Z, and m and m link con nections to cranks o 0 on shafts p and 1). Upon shafts p p are arms (1 similar to cranks o and 0 and positioned similarly on the shafts. By operating handle'bar 7c the shafts are os cillated, throwing the arms (1 in the direction indicated by the arrow in Fig. 11. In Fig. 11 the casingJ incloses the plunger 7*, recessed at s, in which recess the free end of arm qis in engagement, casing J being suitably slotted to provide free movement of arm q. Casing J IIO is provided with side walls 15, through which the shaft 1) passes and between which the arm q is confined, the face-plate being preferably countersunk and held in position within the wall B or B as the case may be, by screws, as shown in Fig. 11. By this construction the plungers r r r r on the walls B and B can be thrown by turning the handle-bar k to project into the shaft beneath the lowest of the upper series of hatches and the framework of buffer H.

The hatches which I use in my device I prefer to construct of perforated steel riveted to a steel framework, lined beneath with asbestos and held against the perforated plate by a wire mesh, as shown in Fig. 8.

Having thus described my invention, What I claim as new, and desire to secure by Letters Patent, is-

1. In combination with an elevator-car and an elevator-shaft, a series of traveling hatches adapted to be carried by said elevator-car and to close said shaft at the difierent floors, an elastic buffer on the bottom of the car, counterbalances for normally holding said hatches against the bottom of the car, a series of stops on opposite walls of said shaft at successive levels, the'stops at the successive floors being out of vertical alinement, said hatches havinga series of slots in line with the stops which a given hatch is designed to pass, but not in line with the stops at the floor it is designed to close, shoes extending upward and downward and tapered at their ends, a series of locking devices having arms adapted to be pressed out of the path of the car by said shoes, each arm'being adapted to release said locking devices when the elevator-car has passed, and springs throwing said devices into engagement with the hatches at their re- 40 spective floors, whereby a hatch is securely locked at its proper floor.

2. In combination with an elevator-car and elevator-shaft, a series of stops on opposite walls of the shaft at successive floor-levels, a series of traveling hatches adapted to be carried by the elevator-car, each of such dimensions as to approximately close the elevatorshaft and having slots in vertical alinement, shoes extending upward and downward and tapered at their ends mounted on said elevator-car in vertical alinement with said slots and adapted to pass therethrough, locking devices on successive floor-levels having an operating-arm in vertical registration with said slots and adapted to be retracted by said shoes, thereby releasing the lock for the pur poses described.

3. In combination with an elevator-car and elevator-shaft, a shoe on said car, a series of hatches adapted to be carried with said elevator-oar, having therein slots in alinement with said shoe; a series of locking devices mounted on opposite walls of said shaft at successive floor-levels, each consisting of a bolt with two arms of unequal length, the longer arm being in alinement with the said shoe, the shorter arm being out of alinement with said slots and adapted to engage said batches, and a spring for projecting said bolt, said spring being adapted to be retracted by said shoe acting upon said longer arm, thereby unlocking the plate, for the purposes described.

THOMAS L. TINOHER. Witnesses:

O. W. HILT,

ROBERT CATHERWOOD.

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