US1174422A - Double-leaf sidewalk-door. - Google Patents

Double-leaf sidewalk-door. Download PDF

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Publication number
US1174422A
US1174422A US4391015A US4391015A US1174422A US 1174422 A US1174422 A US 1174422A US 4391015 A US4391015 A US 4391015A US 4391015 A US4391015 A US 4391015A US 1174422 A US1174422 A US 1174422A
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United States
Prior art keywords
leaf
sidewalk
double
door
opening
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Expired - Lifetime
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US4391015A
Inventor
John A Kearney
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Gillis & Geoghegan
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Gillis & Geoghegan
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Publication date
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Priority to US4391015A priority Critical patent/US1174422A/en
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Publication of US1174422A publication Critical patent/US1174422A/en
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Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/12—Braking devices, e.g. checks; Stops; Buffers specially for preventing the closing of a wing before another wing has been closed

Definitions

  • the invention relates to doors covering the hoistway openings in sidewalks.
  • the object of this invention is to provide a simple construction by which the leaves for a relatively narrow opening may be economically arranged to provide the necessary height when open to serve to guard the hoistway opening efiiciently.
  • Figure 1 is a plan view of a double-leaf door and its frame constructed in accordance with the invention, and in the closed condition.
  • Fig. 2 is a corresponding vertical section, taken on the line 2-2 in Fig. 1. The dotted lines show the leaves in a vertical position.
  • A is a rectangular frame set in the sidewalk to form the mouth of the hoistway, and rabbeted as usual to receive the margins of the leaves.
  • B1, B2 are the doors or leaves, hinged to the frame at C C and adapted to be turned to or a little beyond, the vertical as usual in opening the hoistway.
  • the leaf B1 is of sufficient width to serve when elevated, as a guard for the opening, and covers, when closed, considerably more than half such opening, the remainder being covered by the much narrower leaf B2; in
  • a plate B is secured to the under face of the leaf B2, extending the same distance beyond the center line as the leaf B1, lying beneath the latter and overlapped by the free margin thereof whenthe leaves are closed as shown in the figures.
  • the leaf B1 In opening the door the leaf B1 is first raised to free the leaf B2, which with its plate B may then be lifted, and when both leaves are at the vertical they stand at equal height and are of suiicient height to guard eiiiciently the sides of the open hoistway.
  • the proportions may be varied widely in accordance with the dimensions of various hoistways.
  • One leaf should be of the width required as a standard, and the other wide enough to cover the remaining portion of the opening and carry a plate B projecting sufficiently to provide the additional width necessary to equal the width of the wide leaf.
  • the invention is readily adaptable to any type of double-leaf sidewalk doors.
  • I claim 1 In a double-leaf sidewalk door, a wide leaf hinged at one side of the hoistway opening and extending beyond the center line thereof, a narrow leaf hinged at the opposite side of such opening and extending to the free edge of said wide leaf, and a plate carried by said narrow leaf and extending beneath said wide leaf, whereby said leaves when closed stand in the same plane, one being supported by the other, and both said leaves stand when open at a sufficient height to serve as a guard for such opening.

Description

J. AQ KEARNEY. DOUBLE LEAF SIDEWALK DOOR.
APPLICATION FILED AUG. 6, 1915.
Patented Mar. 7 1916.
Illl
/w' Mw ff s'in'rs AEN- J'OI-IN A. KEARNEY, OF EAST ORANGE, NEW JERSEY, ASSIGNOR TO' GILLIS & GEOGI-IEGAN, 0F NEW YORK, N. Y., .A FIRM.
DOUBLE-LEAF SIDEWALK-DOOR.
Specification of Letters Patent. Patented Mar, '7, 1916,
Application filed August 6, 1915. Serial No. 43,910.
To all whom it may concern.'
Be it known that I, JOHN A. KEARNEY, a citizen of the United States, residing at East Orange, in the county of Essex and State of New Jersey, have invented a certain new and useful Improvement in Double- Leaf Sidewalk-Doors, of which the following is a specification.
The invention relates to doors covering the hoistway openings in sidewalks. When the leaves of such doors are of considerable width they serve successfully as guards for two sides of such openings, but when narrow fail to afford the desired protection.
The object of this invention is to provide a simple construction by which the leaves for a relatively narrow opening may be economically arranged to provide the necessary height when open to serve to guard the hoistway opening efiiciently.
The invention consists in certain novel features and details of construction and arrangement by which the above objects are attained, to be hereinafter described and claimed.
The accompanying drawings form a part of this specification and show the invention as it has been carried out.
Figure 1 is a plan view of a double-leaf door and its frame constructed in accordance with the invention, and in the closed condition. Fig. 2 is a corresponding vertical section, taken on the line 2-2 in Fig. 1. The dotted lines show the leaves in a vertical position.
Similar letters of reference indicate the same parts in both figures.
A is a rectangular frame set in the sidewalk to form the mouth of the hoistway, and rabbeted as usual to receive the margins of the leaves.
B1, B2 are the doors or leaves, hinged to the frame at C C and adapted to be turned to or a little beyond, the vertical as usual in opening the hoistway.
The leaf B1 is of sufficient width to serve when elevated, as a guard for the opening, and covers, when closed, considerably more than half such opening, the remainder being covered by the much narrower leaf B2; in
-order to increase the width of the narrow leaf to equal that of the wide leaf B1, a plate B is secured to the under face of the leaf B2, extending the same distance beyond the center line as the leaf B1, lying beneath the latter and overlapped by the free margin thereof whenthe leaves are closed as shown in the figures.
In opening the door the leaf B1 is first raised to free the leaf B2, which with its plate B may then be lifted, and when both leaves are at the vertical they stand at equal height and are of suiicient height to guard eiiiciently the sides of the open hoistway.
The proportions may be varied widely in accordance with the dimensions of various hoistways. One leaf should be of the width required as a standard, and the other wide enough to cover the remaining portion of the opening and carry a plate B projecting sufficiently to provide the additional width necessary to equal the width of the wide leaf.
The invention is readily adaptable to any type of double-leaf sidewalk doors.
I claim 1. In a double-leaf sidewalk door, a wide leaf hinged at one side of the hoistway opening and extending beyond the center line thereof, a narrow leaf hinged at the opposite side of such opening and extending to the free edge of said wide leaf, and a plate carried by said narrow leaf and extending beneath said wide leaf, whereby said leaves when closed stand in the same plane, one being supported by the other, and both said leaves stand when open at a sufficient height to serve as a guard for such opening.
2. In a double-leaf sidewalk door, a wide leaf hinged at one side of the hoistway opening and extending beyond the center line thereof, a narrow leafhinged at the opposite side of such opening and extending to the free edge of said wide leaf, and a plate carried by said narrow leaf and extending beneath said wide leaf to a distance to equal the width of said wide leaf, whereby said leaves when closed stand in the same plane,
one being supported by the other, and both leaves stand at the same height when open.
In testimony that I claim the invention above set forth I afiix my signature.
JOHN A. KEARNEY.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,
Washington, D. G.
US4391015A 1915-08-06 1915-08-06 Double-leaf sidewalk-door. Expired - Lifetime US1174422A (en)

Priority Applications (1)

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US4391015A US1174422A (en) 1915-08-06 1915-08-06 Double-leaf sidewalk-door.

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Application Number Priority Date Filing Date Title
US4391015A US1174422A (en) 1915-08-06 1915-08-06 Double-leaf sidewalk-door.

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US1174422A true US1174422A (en) 1916-03-07

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US4391015A Expired - Lifetime US1174422A (en) 1915-08-06 1915-08-06 Double-leaf sidewalk-door.

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