US987197A

US987197A - Self-operated hatch-cover.

Info

Publication number: US987197A
Application number: US53488609A
Authority: US
Inventors: George Walker; Sidney Walker
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-12-24
Filing date: 1909-12-24
Publication date: 1911-03-21
Anticipated expiration: 1928-03-21

Description

G.. & S. WALKER.

- SELF OPBRATBD HATCH covER.

APPLICATION FILED 10150.24, 1909.

Patented Mar. 21, 1911.

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ama/lfd G. 61S. WALKER. SELF QPBRATBD HATCH COVER. APPLICATION FILED 152.024, 1909.

987, 1 97. y Patented 11111.21', 1911.

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' showing the flaps for closing the space be- GEORGE WALKER AND SIDNEY WALKER, OF SAN JOSE, CALIFORNIA.

SELF-OPERATED Specification of Letters Patent.

HATCH-COVER.

Patented Mar. 21, 1911.

Application filed December 24, 1999. Serial No. 534,886.

To all whom it may concern:

Be it known that we, GEORGE WALKER and SiDNnY VALKER, citizens of the United States, residing at San Jose, in the county of Santa Clara and State of California, have invented a new and useful Improvement in Self-Operated Hatch-Covers, of which the following is a specification.

This invention relates to certain new and useful improvements in selfoperated covers or doors for elevator shafts or hatches, the object being' to provide a cover which is so constructed that in case of fire the same will completely close the shaft or hatch.

Another object of our invention is to provide a cover which is provided with spring actuated sections which are adapted to be operated automatically so as to close the spacebetween the walls of the shaft and the guides and the space around the cable openm0'.

l further object of our invention is to provide the shaft with a cover for closing the weight pocket which is automatically operated by Ythe door when the same is moved into a closed position.

A still further object of the invention is to provide a door which is so mounted in an inclined track that when the same is released it will slide down and completely close the hatch or shaft, said door being held in an open position by cables which are provided with fusible links so that in case of a lire said links will melt, and the cover will be lWith these various objects in view, our invention consists in the novel features of construction, arrangement and combination of parts, all of which will be hereinafter fully described and pointed out in the claims.

In the drawings forming a part of this specification: Figure l is an inverted plan view of our improved cover showing the same in an open position arranged in a building adjacent the elevator shaft. Fig. 2 is a top plan view of the same showing the cover in a closed position. Fig. 3 is a vertical section through the cover in an opened position. Figs. 4 and 5 are detail sections of the cover and track showingthe manner of mounting the same. Fig. 6 is a detail view of the weight pocket cover. Fig. 7 is a detail section through a portion of the cover links tween the guides and walls of the shaft. Fig. S is a section taken on-the line 8 8 of Fig. 7.

Referring to the drawing A indicates an' elevator shaft or hatch which is provided with the usual oppositely disposed vertical guides B and a guide C which in connection with the adjacent guides B forms a weight pocket in which the counterbalance weights of the elevator are adapted to travel, the above description being given so that the application of our improved cover can be readily understood.

Extending transversely through the hatch and out to one side is an inclined trackway D, the track portions of which are formed of channel bars as clearly shown in which is slidably mounted a cover E provided with casters E, E2 adapted to engage the respective walls of the channel shaped tracks so as to allow the cover to move freely therein and it will be seen by this arrangement that the cover will slide down across the elevator shaft or hatch by its own weight when released and for supporting the end of the cover in a closed position, we provide an angled iron A which extends across the shaft in such a position with respect to the trackway that when the cover is in a closed position the edge of the same will rest upon the angled iron A and form a tight joint.

F or supporting the cover in an open position so as to allow the elevator car to move freely up and down the shaft, we provide the cover with an eye E3 to which is connected the hook of a fusible link F which is connected to a block G through which passes a cable H which passes over pulleys G suitably arranged in the framework of the building as clearly shown, the ends of said cable extending parallel alongside of the tracks of the trackway and have fusible H connected thereto, said fusible links being connected to cable sections H2 which are connected to fusible links H3 having hook members adapted to be connected in eyes secured in the wall of the shaft of the elevator, it of course being understood that fusible links can be arranged in the cable at any desirable point, the above positions being given as the most desirable in case of fire where the greatest amount of heat would most likely be. By this arrangement when'the fusible links give away the cable is released so as to release the cover,

and by 4its own weight the cover will slide across'the hatch or'shaft as clearly shown in Fig. 2. l

The cover E is provided with a central slot E4 to receive the supporting cable of the elevator car when the same is moved across the path of the elevator shaft and for closing this slot after the cover or door has been moved into a closed position, we provide a spring actuated cover I which is provided with an eye I which is adapted to receive the hook J of a sliding rod J which is mounted in suitable guideways J 2 on the door E soV as to hold the cover I in an opened position, said cover being preferably mounted upon the cover E by spring actuated hinges, and the end .of the rod J extends out beyond the end of the door so that when the door is ino-ved into engagement Awith the wall of the shaft the projecting end of the rod'Jr will` be engaged so as to slide the rod in its guideways out of the eye ,of the cover I which will release the same and allow the same to closeas clearly shown .in

In order to provide means for closing the space'jbetween the wall of the shaft and the guides B the edges of the door E are cut away as shown at which are closed by similarly shaped covers K which are also mounted .upon the door E by spring actuated hinges and are provided with eyes K which are engaged by the hook portions of rods Il similar to the rod J which are also mounted in guideways and project out beyond the end of the door so that when brought into engagement with the wall' of the shaft these covers will also be released so that they will close the space tightly between the guides and wall of the shaftas clearlyr shown in Fig. 2 and by this manner of constructing a door, the spaces which are now left open by doors now employed for closing shafts will be closed tightly so that practically an air-tight shaft will be formed.

In order to close the weight pocket .of the elevator shaft, we provide a hinged cover M which is provided with a project-ing pin M which is engaged by a pivoted catch N which extends into the adjacent track of the trackway and is adapted to be engaged by the door on its downward movement so as tok throw the cat-ch out of engagement with the pin M and release the same and for closing the flap, we provide the same with a projection M2 having an outwardly projecting portion M3 having a cam edge which is adapted to be engagedl by apivoted dog O which also extends into the adjacent track and is engaged by the door so as to cause the same to ride over the cam edge of the projecting member M3 and swingl the cover into 'a closed position as clearly shown. This cover is also provided with a notch to receive the cables for supporting the weights so that the same will lit snugly around the cables and close the weight pocket as tightly as possible.

From the foregoing description, it will be seen that we have pro-vided a cover for closing an elevator hatch or shaft which is so constructed that the same will move into a closed position by its own weight, said cover being provided with hinged spring actuated covers for closing the space between the guides and wall of the shaft and for closing the slot .of the cover to receive the supporting cables in such a manner that when the door is moved into a closed position the shaft will be practically air tight, thereby providing a door which will have many advantages over doors of this char-- acter now in use.

IVhile we have shown and described the particular manner of mounting the door and the covers, it is ofcourse understood that various other means for accomplishing this result could be used without departing from the spirit of .our invention.

Having thus fully described our invention, what we claim as new and desire to secure by Letters Patent, is:

l. The combination with an elevator shaft, of a trackway arranged transversely in said shaft, a door mounted in said trackway, spring actuated covers carried by said door and means for holding and releasing said covers.

Q. In a self-operating door for elevator shafts, the combination with a shaft having the usual guides and weight pocket, of an inclined track extending transversely through said shaft, a. door slidably mounted in said trackway, covers carried by said door for closing the space between said guides and wall of the shaft, and means for holding said covers open when the door is in an open position and for closing said covers when in a closed position.

3. The combination with an elevator shaft provided with a weight pocket, of an inclined trackway extending transversely through said shaft, a cover arranged adjacent said weight pocket for closing the same, means for holding said cover in an open Josition, means for closing said cover and a doorslidably mounted within said trackway adapted to first engage said means for holding the cover open and then said means for closing said cover when said door moves into a closed position. e

4. The combination with an elevator shaft, of an inclined track extending transversely through said shaft, a door slidably mounted in said trackway provided with a slot to receive the cables of the elevator car, said door being provided with notches. to receiveI said guides, spring actuated covers for closing said notches and slot and slidably mounted rods for holding said covers in an open position, said rods being operated when said door is moved into a closed position so as to release said covers.

5. The combination With an elevator shaft provided With the usual guides and Weight pocket, of an inclined track extending transversely through said shaft, a door provided with casters slidably mounted Within said track, a cable connected to said door by a fusible link for holding said door in an open position, said door being provided With notched edges and a central slot to receive the guides and the supporting cable, and spring actuated covers for closing said slot and notch, said covers being released automatically When said door is moved into a l closed position.

6. The combination with an elevator shaft provided With the usual guides and Weight pocket, of an inclined track extending transversely through said shaft, a door slidably mounted within said track, a cable connected to said door by a fusible link for holding the saine open, a cover arranged adjacent the Weight pocket for closing the same, said door being provided With a central slot and notched edges, spring actuated covers for closing said slot and notched edges, and means for operating said spring actuated covers together with means for closing the Weight pocket cover when said door is moved into a closed position.

7. The combination with an elevator shaft, of an inclined trackWay arranged transversely in said shaft and extending out to one side, a door slidably mounted in said trackivay, a cable connected to said door by a fusible link for normally holding the same out of the shaft, said door being provided With notches and a central slot to receive the guides and supporting cable of the elevator shaft, spring actuated covers for closing said slot and notches, slidably mounted rods for holding said covers in an open position having outwardly projecting ends adapted to be operated When said door is moved into. a closed position so as to release said covers.

8. The combination With an elevator shaft provided with a Weight pocket, of a hinged cover for closing said pocket provided with a pin and a projection having a cam edge, a pivoted catch for engaging said pin, a pivoted dog for engaging the cam edge of said projection, and a door adapted to operate the said pivoted catch and dog when moved across said elevator shaft.

9. The combination with an elevator shaft provided with a Weight pocket and oppositelv disposed guides, of a trackway extending transversely through said shaft, an angled iron arranged against the Wall of said shaft; between said track, a door siidably mounted in said track provided With a cental slot and notched edges, a cable connected to said door by a fusible link for holding the said door in an open position, spring actuated covers mounted upon said door for closing said slot and notched, slidably mounted rods for holding said covers in an open position, a cover for closing said weight pocket, means operated by said door for closing said cover, said rods being adapted to engage said angled iron when said door moves into a closed position so as to release said spring actuated covers.

GEORGE WALKER. SDNEY VALKER.

Witnesses A. K. DAGGETT,

C. W. RIFFEE.

Copies of this patent may be obtained for ve cents each, by addressing' the Commissioner of Patents, Washington, I). C.