US30016A - Book-latch - Google Patents

Book-latch Download PDF

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Publication number
US30016A
US30016A US30016DA US30016A US 30016 A US30016 A US 30016A US 30016D A US30016D A US 30016DA US 30016 A US30016 A US 30016A
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US
United States
Prior art keywords
latch
door
book
ball
slot
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
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Publication date
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/007—Devices for reducing friction between lock parts
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/68—Keepers
    • Y10T292/685—With anti-friction means
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/68—Keepers
    • Y10T292/696—With movable dog, catch or striker

Definitions

  • my invention consists in providing the nosing or face plate of a door latch with a slot as shown by A in Fig. 2, said slot serving as a passage for the latch of the door.
  • a in Fig. 2 At the base of said slot I construct an inclined plane B, as shown in Fig. 2.
  • the ball C Upon this inclined plane the ball C, also represented in Fig. 2, traverses when acted upon by the latch of the door.
  • Fig. 3 represents the course of ball, G, which is made to vibrate up the inclined plane by the nose of the door latch striking it on entering slot A in act of shutting, and also shows the position of said ball when the door is shut.
  • Fig. 1 also represents the ball Cs position when the door is closed.
  • the object of this invention is to dispense with the friction caused by the latch of a door striking against the edge of the nosing or face plate, to prevent the jar, noise, and general fracture of the door, frame, hinges and look.

Description

J. WALTON.
DOOR LATCH.
No. 30,016. Patented Sept. 11, 1860 BIZ/Eiesswt THI; NORRIS Pam co. PNQTO-L mu. wAsmNaToM I: c
UNITED STATES PATENT OFFICE.
J ONATHAN YVALTON, OF BROOKLYN, YORK.
DOOR-LATCH.
Specification of Letters Patent No. 30,016, dated September 11, 1860.
To all whom it may concern:
Be it known that I, JONATHAN l/VALTON, of Brooklyn city, in the county of Kings and State of New York, have invented a new and useful Improvement on a Nosing or Face-Plate of a Door-Latch; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawing, making a part of this specification, in which Figure 1 is a vertical representation. Fig. 2 is a front and side view, and Fig. 3 is a horizontal section.
The nature of my invention consists in providing the nosing or face plate of a door latch with a slot as shown by A in Fig. 2, said slot serving as a passage for the latch of the door. At the base of said slot I construct an inclined plane B, as shown in Fig. 2. Upon this inclined plane the ball C, also represented in Fig. 2, traverses when acted upon by the latch of the door.
Fig. 3 represents the course of ball, G, which is made to vibrate up the inclined plane by the nose of the door latch striking it on entering slot A in act of shutting, and also shows the position of said ball when the door is shut. Fig. 1 also represents the ball Cs position when the door is closed.
The object of this invention is to dispense with the friction caused by the latch of a door striking against the edge of the nosing or face plate, to prevent the jar, noise, and general fracture of the door, frame, hinges and look.
What I claim as my invention and desire to secure by Letters Patent is The combination and arrangement of the slot A the inclined plane B and the ball 0 substantially as and for the purpose herein described.
JONATHAN WVALTON. Witnesses:
JAMES THOMPSON, J oHN A. MURPHY.
US30016D Book-latch Expired - Lifetime US30016A (en)

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US30016A true US30016A (en) 1860-09-11

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US30016D Expired - Lifetime US30016A (en) Book-latch

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4432063A (en) * 1981-10-06 1984-02-14 Cincinnati Milacron Inc. Apparatus for automatically moving a robot arm along a nonprogrammed path
US4458321A (en) * 1981-08-19 1984-07-03 The Charles Stark Draper Laboratory, Inc. Self-teaching robot feedback system
US4495588A (en) * 1981-03-26 1985-01-22 Kabushiki Kaisha Yaskawa Denki Seisakusho Robot locus control system
US4542471A (en) * 1980-12-30 1985-09-17 Fanuc Ltd. Robot control system for presetting limit values corresponding to limits of deviation
US4547844A (en) * 1979-03-16 1985-10-15 The Raymond Corporation Shelf height selector
US4558424A (en) * 1982-09-23 1985-12-10 Kabushiki Kaisha Sankyo Seiki Seisakusho Robot control apparatus
US4562551A (en) * 1980-12-30 1985-12-31 Fanuc Limited Robot control system
US4571694A (en) * 1980-12-30 1986-02-18 Fanuc Limited Robot control system
US4613943A (en) * 1983-04-13 1986-09-23 Hitachi, Ltd. Operation teaching method and apparatus for industrial robot
US4696707A (en) * 1987-08-18 1987-09-29 The Ingersoll Milling Machine Company Composite tape placement apparatus with natural path generation means
US4701686A (en) * 1984-08-24 1987-10-20 Fanuc Ltd. Line tracking control method
US4750965A (en) * 1986-03-28 1988-06-14 The Ingersoll Milling Machine Company Adaptive control for tape laying head having natural path generation
US4912753A (en) * 1988-04-04 1990-03-27 Hughes Aircraft Company Robot axis controller employing feedback and open loop (feedforward) control
US20020074213A1 (en) * 2000-12-19 2002-06-20 Murata Kikai Kabushiki Kaisha Loader control unit

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4547844A (en) * 1979-03-16 1985-10-15 The Raymond Corporation Shelf height selector
US4562551A (en) * 1980-12-30 1985-12-31 Fanuc Limited Robot control system
US4542471A (en) * 1980-12-30 1985-09-17 Fanuc Ltd. Robot control system for presetting limit values corresponding to limits of deviation
US4571694A (en) * 1980-12-30 1986-02-18 Fanuc Limited Robot control system
US4495588A (en) * 1981-03-26 1985-01-22 Kabushiki Kaisha Yaskawa Denki Seisakusho Robot locus control system
US4458321A (en) * 1981-08-19 1984-07-03 The Charles Stark Draper Laboratory, Inc. Self-teaching robot feedback system
US4432063A (en) * 1981-10-06 1984-02-14 Cincinnati Milacron Inc. Apparatus for automatically moving a robot arm along a nonprogrammed path
US4558424A (en) * 1982-09-23 1985-12-10 Kabushiki Kaisha Sankyo Seiki Seisakusho Robot control apparatus
US4613943A (en) * 1983-04-13 1986-09-23 Hitachi, Ltd. Operation teaching method and apparatus for industrial robot
US4701686A (en) * 1984-08-24 1987-10-20 Fanuc Ltd. Line tracking control method
US4750965A (en) * 1986-03-28 1988-06-14 The Ingersoll Milling Machine Company Adaptive control for tape laying head having natural path generation
US4696707A (en) * 1987-08-18 1987-09-29 The Ingersoll Milling Machine Company Composite tape placement apparatus with natural path generation means
US4912753A (en) * 1988-04-04 1990-03-27 Hughes Aircraft Company Robot axis controller employing feedback and open loop (feedforward) control
US20020074213A1 (en) * 2000-12-19 2002-06-20 Murata Kikai Kabushiki Kaisha Loader control unit

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