US1177251A - Guard for hoistway-doors. - Google Patents

Description

J. A. KEARNEY.

GUARD FOR HOISTWAY DOORS.

'APPLICATION man JUNE 18. 1915.

Patented Mar. 28, 1916.

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THE COLUMBIA PLANOGRAPH c0., WASHINGTON, D. c.

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JOHN A. KEARNEY, OF NEWARK, NEW JERSEY, ASSIGNOR. T GILLIS & GEGGI-IEGAN, OF

NEW YORK, 1\T. Y., .A FIRM.

GUARD FOR HOIS'IWAY-DOORS.

Application filed June 18, 1915.

To all whom it may concern:

Be it known that I, JOHN A. KEARNEY, a citizen of the United States, residing at Newark, in the county of Essexand State of New Jersey, have invented a certain new and useful Improvement in Guards for Hoistway-Doors, of which the following is a specification.

The invention relates to a guard automatically movable with the,door to form a protection about the hoistway to prevent aocidents and for the protection not only of pedestrians but of the party or parties within the hoistway.

The invention has for a further object to provide for the ready folding of the guard as the hoistway door is brought to its closed position, and to provide a construction which shall be simple, composed of few parts and readily attachable to hoistway doors already in use, of that type which are 7 automatically opened and closed.

Other objectsand advantages of the invention will hereinafter appear and the novel features thereof will be particularly pointed out in the appended claims.

The invention isclearly illustrated in the accompanying drawings, which, with the letters of reference marked thereon, form a part of this'specification, and in which- Figure 1 is an elevation'of a hoistway door and its operating mechanism, the door being open and the guard shown in its operative position, portions of the hoistway being shown in vertical section. and parts of the hoisting apparatus omitted. Fig. 2 is a corresponding vertical. section with parts in elevatiomason the line 22 of Fig. 1 looking in the direction ofthe arrows. Fig. 3is a corresponding plan view. Fig. 4 is a detail of the reinforcing stop for the fixedly mounted guard member.

Like letters of reference indicate like parts throughout the several views. a

Referring to the'drawings, A is a metallic frame surrounding the mouth of the hoistwav and A is a vertical depending flange thereon lying within the latter. At opposite corners on the same side of the flange A are verticalangle irons or legs A each secured to the flange to form part thereof and. if desired, may be formed integral therewith.

B, B are doors hinged to the frame at B B and opening upward, as shown.

Specification of Letters Patent.

Patented Mar. as, rare.

Serial No. 34,836.

These doors may be made to open and close automatically by any suitable means, to which no claim per se is made in this applicatlon.

In the accompanying drawings I have chosen to show one form of hoisting and door operating mechanisms which I have found well adapted to the purpose and which, briefly described, is as follows z- Pivotally attached tothe angle irons A at points near the lower ends thereof, by bolts A in the housings A are two levers C C each somewhat longer than half the distance between the centers A A and with their free ends lapped one upon the other. The lever (Y is slotted as at c, and the lever C carries a pin or bolt 0 which extends through the slot and loosely joins the free ends of the levers, compelling them to rise and sink together, the slot 0 permitting the required play. At a point C on each lever is a bolt D serving as a pivotal connection for the lower end of a link D, preferably of angular form as shown, each pivotally joined at the upper end to the door on the same side, by a bolt D extending through a housing F thereon.

It is obvious that any force tending to raise either of the levers from the depressed position will correspondingly tend to raise the doors through the thrust of the links D D. and when thus elevated any force tending to depress either lever will correspondingly lower or close the doors. The levers may thus be operated by a variety of means, that shown comprises a plate G fixed upon the lever C and having an arm G lying above the lever andextending parallel therewith, forming an open slot or long notch or way 9 ada ted to recelve a vertically movable member as the pin or roller H. The arm G is of such length as to permit the escape of the roller in its upward travel when the levers have been moved sufiiciently to open the doors fully, and to permit the roller to pass the nose of the arm on its descent and strike andthus engage the upper edge of the plate at G initiating the downward movement of the lever, again entering the notch c and traversing it as required by the are described by the lever in its movement. The end of the arm G is curved to facilitate such engagement and disengagement of the roller. The gravity of the doors and their attached links and levers is preferably partially counterbalanced by a vertically sliding weight J suspended by a cable J running over a pulley J mounted on the flange A, and attached to the lever C at the point 0. lhe roller H may be mounted on any vertically movable mechanism adapted to cause the roller to travel in a fixed vertical path or in proper relation to the plate G; as before stated, the invention is designed to serve with hoisting apparatus installed in the hoistway and arranged to be protruded through the open doors for service in hoisting loads from the cellar to the sidewalk, and the roller I-I may be mounted on a vertically movable portion of such apparatus.

As illustrated in the drawings, the invention is arranged to serve with a hoisting apparatus similar to that shown in Letters Patent to Louis 0. Forman, dated April 30, 1912, No. 1,021,885, in which a hollow post K is firmly supported in the hoistway and receives telescopically a vertically movable standard L carrying at its upper end a hoisting-head in which is a hoisting-drum L, only partially shown, operated by a crank M through the medium of a gearwheel M and pinion L as will be understood. The standard is raised or lowered by the engagement with a rack L thereon of a rack-wheel K operated by a crank K through the medium of a gear-wheel K and pinion K This elevating mechanism is mounted on the post K which also carries guideways K K for the counterweight J.

The roller 11 projects from a clamp H securely fastened upon the standard L below the hoisting-head, or other convenient point, and is so located relatively to the notch g as to engage and coact with the lever O to open and close the doors.

It will be noted that the door operating mechanism is wholly supported upon the hatch-frame, and that the counterweight J is guided upon the post K, so that in in-- stalling the apparatus it is only necessary to erect the post in proper relation to the frame to insure correct positioning. and proper operation both of the door opening mechanism and of the elevating and hoisting mechanism.

In apparatus of this character the work of raising the loads from the cellar is frequently done by a single operator, therefore it is highly advantageous to have the doors open and close automatically with the rise and descent of the hoisting-head, for the reason that it saves the several ascents to the sidewalk and return usually required in opening and closing the doors and elevating and lowering the hoisting-head.

The levers and links are in the form of thin flat bars and are located close to the frame and therefore do not obstruct the hoistway. When the doors are fully opened beyond the vertical lines of the hinges they are held open by gravity aided by the inertia and friction of the opening mechanism, and when closed are effectually locked against opening from the exterior by reason of the engagement of the roller in the notch g.

In order to form a shield or guard about the open upper end of the hoistway upon the sides at right angles to the doors when open, I employ the means now to be described. Fixed to the door B is a guard member N of substantially the same height as the door when opened and movable therewith to drop into a vertical position when said-door is closed.

O is a guard hinged to the other door 13 by suitable means as spring hingesO so that it may swing outward, as indicated by dotted lines in Fig. 3, to admit of the removal of the can or other load and automatically closed by such spring hinges but limited. in its closing movement by means of the overlapping portion or edge N of the guard N, as seen in Fig. 1. This guard member 0 moves with the door B to which it is attached-and falls into a vertical position, as the door B is closed. Correspondingly, when the doors B B are opened, the guard members N and 0 move therewith and assume the vertical position in which they are indicated in said Fig. 1, with the adjacent edges thereof overlapping.

In order to give greater stability to the guard member N when the guard member 0 i is opened to admit of the removal of the can and also to prevent injury from the impact of the guard member 0 When the same is closed against the overlapping portion of the guard member N, I provide an arm 1? attached to the lever- C, as seen clearly in Fig. 1, and extending at substan-.

tially a right angle therefrom and offset, as at 7), see Fig. 4, so that when the levers C C are thrown into the position in which they are shown by full lines in Fig. 1, this member P will be thrown in such position that its offset portion p will lie adjacent to or in contact with the lower edge of the then vertically disposed guard member N adjacent its inner or free edge to take the impact of the springclosed guard-member O, to steady both guard members, and when the doors begin to close this member P, mov ing with the lever C, will be gradually brought down into the position indicated by dotted lines in Fig. 1. The operation will be apparent. When the levers and their accessories are in the position indicated by dotted lines in Fig. 1, the doors B B are closed and the guard members N and O depend. in the vertical position indicated by dotted lines in said Fig. 1. When the doors are open, as indicated by full lines in Fig. 1, the guard members N and O are automatically brought thereby into their standing position, seen in full lines in said Fig. 1, with their adjacent edges overlapped and the guard member 0 closed against the relatively fiXed guard member N, so that the opening about the hoistway is guarded, it being understood that the hinged guard member 0 can be readily moved outward by the impact of the can thereagainst in order to permit of the ready removal of the latter.

It will be apparent that in locations and under conditions where one side of the hoist opening is not closed by the wall of the building, guard members similar to the members N and 0 may be arranged upon such side of the hoist opening, that is a duplication of the guard members herein shown would be employed, being merely a duplication of what has been hereinbefore particularly described.

I claim 1. Movably mounted doors, door opening means, guard members carried thereby and foldable therewith, andmeans movable with the door-opening means for cooperation with the overlapped edges of said guard members when the latter are open to steady said members.

2. Movably mounted doors, door opening means, guard members carried thereby and foldable therewith, one of said guard members being mounted for outward movement when the door is open to steady said members, and means movable with the dooropening means for cooperation with the overlapped edges of said guard members when the latter are open.

3. Movably mounted doors, door opening means, guard members carried thereby and foldable therewith, means movable with the door-opening means for cooperation with the overlapped edges of said guard members when the latter are open to steady said members, lever mechanism for opening said doors, and cooperating roller and slotted members movable with said lever mechanism for initiating the downward movement of the levers.

4. Movably mounted doors, door opening means, guard members carried thereby and foldable therewith, and means movable with the door-opening means for cooperation with the overlapped edges of said guard members when the latter are open to steady said members, saidmeans being oflset adjacent the lower edge of the guard members when the latter are in a vertical position.

5. Movably mounted doors, door opening means, guard members carried thereby and foldable therewith, andmeans movable independent of the doors movable witl1 the door-opening means for cooperation with the overlapped edges of said guard members when the latter are open to steady said members. I

6. Movably mounted doors, means for automatically opening and closing the same, and guard members one fixedly and the other movably mounted on said doors and foldable therewith, said guard members having their adjacent edges overlapped when in open position and means movable with the doors and movable into position adjacent said overlapped edges to take the impact of the movable guard member as it is closed.

7. Movably mounted doors, means for automatically opening and closing the same, a guard member carried by one of said doors, and a brace member for the guard member movable with the doors and movable into position adjacent the free edge of said guard member.

8. Movably mounted doors, means for automatically opening and closing the same, a guard member carried by one of said doors, a brace member for the guard member, and a movably mounted guard member on the other door overlapping the adjacent edge of the first-named guard member and means movable with the doors and adapted to be thrown into position adjacent the overlapped edges of the guard members when the doors are opened.

9. Movably mounted doors, means for automatically opening and closing the same, a guard member fixed to one of the doors and means movable with the door opening means for cooperation with the free edge of said guard member to steady said guard member when the latter is in open position.

10. Movably mounted doors, means for automatically opening and closing the same, a guard member fixed toone of the doors and means movable with the door opening means for cooperation with said guard member, and a guard member movably mounted on the other door with its free edge overlapping the adjacent edge of the fixed guard member.

11. Movably mounted doors, a guard member movably mounted on one of said doors, and a stop movable with the doors and into position adjacent the free edge of said guard member to limit the inward movement of said guard member.

In testimony that I claim the invention above set forth I aflix my signature, in presence of two witnesses.

JOHN A. KEARNEY.

Witnesses:

CHARLES R. SEARLE, LILLIAN H. WILSHUSEN.

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

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