US1135279A - Elevator-gate and gate-operating mechanism. - Google Patents

Description

- A. E. HAGER.

ELEVATOR GATE AND GATE OPERATING MECHANISM. APPLICATION FILED SEPT. 22. 1912.

Patented Apr. 13, 1915.

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AUGUST EDWARD HAGER, OF TORONTO, ONTARIO, CANADA.

ELEVATOR-GATE AND GATE-OPERATING MECHANISM.

Application filed September 22, 1913.

To all whom it may concern:

Be it known that I, AUGUsT EDWARD! HAGER, a citizen of the United States, and resident of the city of Toronto, in the county of York and Province of Ontario, Dominion of Canada, have invented certain new and useful Improvements in Elevator- Gatesand Gate-Operating Mechanism; and I hereby declare that the following is a full, clear, and exact description of the same.

My invention relates to an elevator gate suspended from traveling ropes passing over suitably arranged pulley blocks and operated by arms projecting from the elevator, the gate being constructed of any desired number of sections, each of which is slidably mounted on its individual guide rods arranged in parallel relation to the elevator, the lowermost gate section being provided with means to engage each of the superposed gate sections in succession as it moves upward to raise them to the open position of the gate and to control their descent as they move to their closed position,

the traveling ropes being connected at one end to the lowermost gate section, passing over suitably arranged pulleys and provided at their other end with catches engaged by the arms projecting from the elevator as it approaches the landing stage whereby the ropes are caused to travel in one direction and move the gate to an open position, the arms being automatically released from the catches when the elevator departs from the landing stage, whereby the gate will move to a closed position and cause the travel of the ropes in the opposite direction, the an rangement of the cams, arms and catches being such that the arms and catches will remain in contact with each other and regulate the closing of the gate sections at the same speed of travel as the elevator, such engagement of the arms and catches pre venting the inadvertent closing of the lowermost gate section, and the latter in turn maintaining the superposed gate sections in their open position.

For an understanding of the invention 7 reference is to be had tothe following description, and to the accompanying drawings, in which Figure 1, is an elevation showing the relative construction and arrangement of the parts of the gate constituting the present invention with the gate sections in their closed position. Fig. 2, is a vertical section Specification of Letters Patent.

Patented Apr. 13, 1915. Serial No. 791,043.

transversely through Fig. 1. Fig. 3, is a similar view to Fig. 1, showing the gate sections raised to their open position. Fig. 4, is a vertical section'transversely through Fig. 3. Fig. 5, is a detail view showing the means for causing the ropes to travel in a gate opening direction during the descent of the elevator to the landing stage. Fig. 6,

is a similar view to Fig. 5, showing the means for causing the gates to travel in a gate opening direction during the ascent of the elevator to a landing stage, and Fig. 7, is a detail view of one of the catch engaging arms.

Like characters of reference refer to like parts throughout the specification and drawmgs.

Set in the framing or of the elevator shaft, as shown in Fig. 1, of the drawings, are three sets of guide rods a, a, and a on which is vertically movable the elevator gate comprising three gate sections 6, b, b respectively.

The lowermost gate section b is provided along its bottom edge with projecting plates 1), which extend into the path of the superposed gate section b, b, to engage these sections successively as it moves upward on its guide rods a.

During the ascent of the gate section b it first engages the gate section b and raises it until the bottom edge of both of the gate sections 5, 6 come into line with the bottom edge of the gate section b when the projecting plates 6* engage that gate section and carry it upward to the limit of travel, the several gate sections then being in lateral parallel relation.

In the accompanying drawings I have shown the elevator gate to consist of three gate sections, but it is possible to construct the elevator gate of any desired number of gate sections, the number being in keeping with the size of the elevator entrance, and the requirements of the factory inspector, and therworking conditions of the elevator shaft.

The elevator gate is suspended by two traveling ropes 0, 0 attached at one end to the gate section b, the rope 0 passing over pulleys d, e and e to an inverted cone shaped catch f vertically slidable on a guide rod g, the other rope c passing over pulleys d, e and e to a cone shaped catch f slidable on a guide rod 9', the pulleys and guide rods being suitably secured to the 1 parallel relation to the elevator i.

framing a of the elevator shaft, and the guide rods 9 and g preferably being in nected to the catchf is a rope h passing I over a suitably arranged set of pulleys h to the other catch f. The elevator i is provided with" catch engaging arms j, 7" pposed respectively to the catches f, f, each of the arms 7', 7' comprising a spring tensioned member j, which engages its respective catch when the elevator is approaching the landing stage.

Secured to the framing a of the elevator shaft are two'cams 7c, is engaged by the arms j, 3'" during the downward and upward movement respectively of the elevator when it departs from the landing stage.

When the elevator .is approaching the landing stage Lone of the arms 9' or j en ages its respective catch for 7, in the fol- 1 owing manner, z. e.if the elevator is as cendingthe a'rm j will engage the base of the inverted cone shaped catch 7" and move 7 the catch upward on the guide rod 9, as

= draw with it the rope c keeping that rope taut asit descends. If the elevator should halt at the landing stage Z-the arm y" will continue in engagement with the cone shaped catch 7" and insure the gate being I maintained in an open position. 7

When the elevator departs in an upward direction from the landing stage Z the spring tensioned member 9' engages the cam is which will then compress the spring tensioned member j andrele'ase it from engagement with the cone shaped catch f, so

that the latter can return to a normal position, and enable the gate to close by gravity, the gate as it descends drawing on the rope cand keeping it taut.

, When the elevator 71 is moved upward the catch 7 is descending on the guide rod 9, this descent being continued until the base of the inverted cone shaped catch 7 passes below the spring tensioned member 7' of "the arm j, the spring tensioned member 7' yielding sufliciently to clear the catch 7 as it passes, and springing outward again to engage or be engaged by said catch when the arm and catch are clear of each other, this occurring before the spring tensioned member j of the arm j is released from the catch f'.- The'purpose'of this is that when the catch f is released by the arm j the'catch f will engage below the arm y and move upward with it at. the same rate Conof travel as the elevator, and thereby control the speed of the descent of the gate b.

If the elevator should ascend to the land- .ing stage Z and immediately descend therefrom without passing it, the arm j will remain in engagement with the cone shaped catch f and prevent its descent at a faster rate of speed than the travel of the elevator, thereby again controlling the speed at which the elevator gates closes.

When the elevator is descending through the elevator shaft, and approaching the landing stage Z, the spring tensioned member j of thearm j engages the base of the inverted cone shaped catch f and moves it downward on the guide rod 9, this downward movement of the cone shaped catch f drawing with it the adjacent end of the rope c and causing the rope to travel over the pulleys e, e and d and raise the elevator gate Z; to an open position, the arm 7' continuing to remain in engagement with the base of the cone shaped catch 7" until the elevator i has descended below the landing stage l, and its spring tensioned member j has engaged the cam and been pressed thereby from engagement with the cone shaped catch f, to release it for the closing of the elevator gate, as previously described.

hen the cone shaped catch fis moved downward on its guide rod 9 during the descending movement of the elevator 2' it draws with it the adjacent end of the rope h, and causes the travel of the rope in over the set of pulleys h to raise the cone shaped catch f on itsguide rod 9 until it has passed above the arm j, and been engaged by it, 'so that the said catch will remain in engagement with the top of the arm j as the elevator descends to control the speed of the closing of the elevator gate 6 as above described. As the elevator gate closes the gate sections descend on their respective guide rods until arrested by their respective stops a, the three gate sections descending unitedly until so arrested.

In the foregoing description I have made use of the term ropes with respect to the elements 0, c and 72,, and I wish it to be understood that this term includes in its meaning, any-kind of rope, cable, chain or the like. I have also made use of the term landing stage and I wish it to be understood that this term includes in its mean inga floor, loading platform, scaffold or the like.

Having now particularly described the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is In the herein described device, an elevator gate comprising a plurality of gate sections, individual guide rods for each gate section, and a lifting element attached to the lowerwith an elevator, traveling ropes connected to the lowermost gate section and automatically actuated by the elevator as it approaches the landing stage to raise the lowermost gate section to its elevated position and automatically released by the elevator 10 as it departs from the landing stage, Whereby said gate section may return to its normal position.

Toronto, September 16th, 1913.

. AUGUST EDWARD HAGER. Signed in the presence of- CHAS. H. RIoHns, J. P. BRODDY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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