Connect public, paid and private patent data with Google Patents Public Datasets

Door-opener

Download PDF

Info

Publication number
US427082A
US427082A US427082DA US427082A US 427082 A US427082 A US 427082A US 427082D A US427082D A US 427082DA US 427082 A US427082 A US 427082A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
door
opener
drawings
hotaling
lever
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Publication date
Grant date

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00Locks or fastenings with special structural characteristics
    • E05B63/24Arrangements in which the fastening members which engage one another are mounted respectively on the wing and the frame and are both movable, e.g. for release by moving either of them
    • E05B63/248Arrangements in which the fastening members which engage one another are mounted respectively on the wing and the frame and are both movable, e.g. for release by moving either of them the striker being movable for latching, and pushed back by a member on the wing for unlatching, or vice versa
    • 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
    • Y10T292/175Bolt releasers
    • Y10T292/18Free-end-engaging means

Description

(No Model.) I

A. HOTALING,

DOOR OPENER.

5 956265586. I Int/12501? d g I V aew v UNITED STATES PATENT OFFICE.

AMBROSE HOTALING, O F BROOKLYN, NEW YORK.

DOOR-OPENER.

SPECIFICATION forming part of Letters Patent No. 427,082, dated May 6, 1890.

Application filed August l5 1889. Serial No. 320,852. (No model.)

To wZZ whom it may concern.-

Be it known that I, AMBROSE HOTALING, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented acertain new and useful Door-Opener; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

The special object of my invention is to make an improvement in devices by which the front door of a dwelling-house may be opened by the proprietor or attendant without the necessity of running up or down stairs when the boarders, tenants, or persons who have rooms there ring the bell for admission.

The invention will first be described in connection with the drawings, and then pointed out in the claim. 7

Figure 1 of the drawings is a side elevation of my door-opener; and Fig. 2, an elevation showing the door, its lock-bolt, and the doorjamb pocket in which my door-opener is located.

In the drawings, A represents the bed-plate, fastened to the studding on the inside of the door-jamb. B B are round rods, on which rests the crank-lever L, so that the latter may slide without wabbling. This lever is fulcrumed at Z and attached at Z to the lower end of a spiral spring 0, whose other end is made fast at a to the bed-plate A. The end Z of the lever rests against the front end of the lock-bolt D, so as to push it back whenever the Wire E is pulled to overcome the resistance of the spring 0. This pull-wire E may be carried to any partof the house and provided with aknob within convenient reach of the proprietor or attendant. By my device a great deal of very wearisome labor, especially to females, may be avoided entirely.

Having thus described all that is necessary to a full understanding of my invention, what I claim as new, and desire to protect by Letters Patent, is

A door-opener consisting of the rods BB, bed-plate A, spiral spring C, crank-lever L, and pull-wire E, all arrangedas shown, and adapted to be used in connection with a doorlock, as and for the purpose set forth.

In testimony whereof I affix my signature in presence-of two witnesses.

' AMBROSE HOTALING.

Witnesses:

CHARLES E. CLOUD, G. W. CAREY.

US427082A Door-opener Expired - Lifetime US427082A (en)

Publications (1)

Publication Number Publication Date
US427082A true US427082A (en) 1890-05-06

Family

ID=2495992

Family Applications (1)

Application Number Title Priority Date Filing Date
US427082A Expired - Lifetime US427082A (en) Door-opener

Country Status (1)

Country Link
US (1) US427082A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4667492A (en) * 1984-09-03 1987-05-26 Nhk Spring Co., Ltd. Locking device for a seat back of a trunk through-seat(sic)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4667492A (en) * 1984-09-03 1987-05-26 Nhk Spring Co., Ltd. Locking device for a seat back of a trunk through-seat(sic)

Similar Documents

Publication Publication Date Title
US505299A (en) Keyhole-guard
US3933014A (en) Door lock attachment
US3099151A (en) Pin tumbler cylinder key system
US816792A (en) Lock.
US1326554A (en) Combination latch-lock and bolt.
US1244404A (en) Padlock-shield.
US1082432A (en) Door-check.
US999044A (en) Coin-controlled lock.
US504262A (en) Bolt
US928820A (en) Door-securer.
US362152A (en) Fastener for meeting-rails of sashes
US143692A (en) Improvement in locking-latches for doors
US417589A (en) Sash-fastener
US3555858A (en) Changeable lock
US1184725A (en) Door.
US832420A (en) Door-check.
US3499675A (en) Sliding door lock
US3854764A (en) Safety lock
US1367043A (en) Suitcase
US1579298A (en) Safety door lock
US1136141A (en) Panic exit-lock.
US228323A (en) Geoege l
US294560A (en) Btjdolf e
US478556A (en) Gate-latch
US1094279A (en) Hasp-lock.