US355419A - Device for fastening doors - Google Patents

Device for fastening doors Download PDF

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Publication number
US355419A
US355419A US355419DA US355419A US 355419 A US355419 A US 355419A US 355419D A US355419D A US 355419DA US 355419 A US355419 A US 355419A
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United States
Prior art keywords
door
arm
casing
base
plate
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Expired - Lifetime
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    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05CBOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C17/00Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
    • E05C17/02Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
    • E05C17/04Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
    • E05C17/12Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod
    • E05C17/16Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod pivoted only at one end and having an elongated slot
    • E05C17/166Security devices
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00Closure fasteners
    • Y10T292/28Extension link
    • Y10T292/289Slotted bar

Description

(No M dem W. A. SPRADO. DEVICE FOR FASTENING DOORS.

1 9 Patented Jan. 4, 1887.

Written STA E PATENT Grinch.

WILLIAM A. SPRADO, OF RAOINE, WISCONSIN.

DEVICE 'FOR FASTENENGJDOORSa SPECIFICATION forming part of Letters Patent No. 355,419, dated January 4, 1887.

Application filed September 16, 1886. Serial No. 213,708. (No model.) i

.ence being had to the accompanying drawings,

and to the letters or figures of reference marked thereon, which form a part of this specification.

My invention, to be hereinafter distinctly claimed, relates to that class of door-fastenings adapted to fasten or lock the door when it is partly open or ajar, whereby ventilation is sea cured, while it is impossible to open the door from the outside farther than is provided for by my fastening,thus securing the door against the entrance of thieves or burglars.

In the accompanying drawings, Figure l is a perspective of my newly-invented device at fixed to the casing of a door and to a. door, showing also the mode of its use. Fig. 2 is a detail.

A slotted arm, A, is hinged at one end to a base-plate, B, which base-plate is affixed to the door-casing O on the inside, at or near the edge to which the door when closed abuts. A bracket, D, is affixed to the door E on the inside of the room, at or near the free swinging edge of the door, and opposite to the arm A and base-plate B, which bracket is provided with a shank, p, aneck, r, and a head, q. The shank 1) may be very short, so that the neck 1- will be carried out almost directly from the base of the bracket, and but slightly in front of the side of the door, as shown in Fig. 1; or

i the shankp may project out quite a little distancein front of the side ofithe door, in the form shown in Fig. 2, as may be necessary to adapt the device to doors set flush with the edge of the casing or considerably within the casing; but the shank 12 should be of such length that the head (1 will lie down close against the base-plate Bv when the door is closed.

The arm A, at its inner end, is so hinged to the base-plate B that it may be folded back against or closed upon the base-plate B and the casing O, as indicated by dotted lines in Fig. 1, or swing out at right angles (and perllivaps a little more) to the casing, as shown in The arm A is provided with a slot, 5, running from its hinged end nearly to its outer free end, which slot at its inner end is enlarged, forming an aperture, 15, which aperture 15 is just long enough to permit the head q (of bracket D) to freelypass the end of arm A,

when that arm is folded back upon the casing, as it is intended to be at all times when notin use for locking the door. The slot 8 is wide enough to freely admit the neck 7, (of bracket D,) but not wide enough to allow the headq to escape through it. I

The neck 1 is sufficiently long that, the door being closed and the arm A then thrown out at right angles to the casing, the head q. of bracket D will, when the door is opened, pass just inside or behind the arm A, as shown in Fig. 1. It will thus be seen that when the arm A is folded back upon the casing the door may be freely opened and closed without let or hinderanee by or from thedeviee in any man ner whatever, but that if the arm A is opened out at right angles to the casing when the door is closed, and the door is thereupon opened, the head q of bracket D will be caught behind and held by the arm A, whereby thedoor cannot be opened farther than the length of the slot 8 will permit the bracket D and door E to go, and it will be impossible from the outside of the door to remove the head qfrom behind the arm A, as that can only be done by closing the door, when operations from the outside are impracticable.

As the arm A might'by accident be thrown out at right angles to the casing when the door is wide open, I preferably curve the free outer end of the arm a little inward or backward, so that the door in swinging to its closed position would impinge against the curved part and force the arm back and allow the door to close. This curved form of end for this arm is also desirable, that the end of the arm will, when it is folded back, lie closeto the casing, and not expose an angular end, which would be liable to be inconvenient and unsightly.

To make this device still more convenient and effective, I provide a spring, F, attached to the baseplate B, one end of which spring lies against the base-plate, and the other end bears against the arm A, and is adapted to force the arm'outwardly into the position shown in Fig. 1, while an elongated swinging button, G, pivoted on a standard, at, rigid in base-plate 13, passes up through the slot 8, when the arm A is being folded back upon the casing B, and is adapted, Whenit has so passed 5 through slot 8, to be turned upon the arm A and hold it back in position on the casing B. What I claim as new, and desire to secure by Letters Patent, is

1. In a doorfastener, a slotted swinging IO arm, A, hinged to a base-plate, B, which baseplate is aflixed to the door-frame, and a spring, F, inserted between the base-plate and slotted arm, said spring being adapted to cause the arm to projectoutwardly, yielding from the 15 base-plate, substantially as described.

2 In a door-fastener, a slotted swinging arm, A, hinged to the door-frame, and a button, G, pivoted on a standard, u, substantially as described.

3. In a door-fastening, the combination of 20 a base-plate, B, arm A, spring F, and swinging button G, substantially as described.

In testimony whereofI afiix my signature in presence of two witnesses.

WILLIAM A. SPBADO.

Witnesses:

ERASTUS O. PEoK, L. H. LARSEN.

US355419D Device for fastening doors Expired - Lifetime US355419A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4131307A (en) * 1976-03-31 1978-12-26 Rita De Rossi Automatic hooking safety-hook for doors of dwellings and offices
US4229030A (en) * 1978-01-31 1980-10-21 Tarragona Corbella Francisco J Safety door fastening
US4846514A (en) * 1988-01-28 1989-07-11 Flynn Jean L Door latch apparatus
US20160281398A1 (en) * 2015-03-23 2016-09-29 Alan B. Kingsbury Security latch for a swing bar door guard
US20180163445A1 (en) * 2015-11-11 2018-06-14 Alan B. Kingsbury Security Latch for a Swing Bar Door Guard

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4131307A (en) * 1976-03-31 1978-12-26 Rita De Rossi Automatic hooking safety-hook for doors of dwellings and offices
US4229030A (en) * 1978-01-31 1980-10-21 Tarragona Corbella Francisco J Safety door fastening
US4846514A (en) * 1988-01-28 1989-07-11 Flynn Jean L Door latch apparatus
US20160281398A1 (en) * 2015-03-23 2016-09-29 Alan B. Kingsbury Security latch for a swing bar door guard
US20180163445A1 (en) * 2015-11-11 2018-06-14 Alan B. Kingsbury Security Latch for a Swing Bar Door Guard

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