US1570135A - Automatic latch - Google Patents

Automatic latch Download PDF

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Publication number
US1570135A
US1570135A US697892A US69789224A US1570135A US 1570135 A US1570135 A US 1570135A US 697892 A US697892 A US 697892A US 69789224 A US69789224 A US 69789224A US 1570135 A US1570135 A US 1570135A
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US
United States
Prior art keywords
bolt
door
casing
spring
groove
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
US697892A
Inventor
George C Emmert
Original Assignee
George C Emmert
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by George C Emmert filed Critical George C Emmert
Priority to US697892A priority Critical patent/US1570135A/en
Application granted granted Critical
Publication of US1570135A publication Critical patent/US1570135A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00Locks or fastenings with special structural characteristics
    • E05B63/18Locks or fastenings with special structural characteristics with arrangements independent of the locking mechanism for retaining the bolt or latch in the retracted position
    • E05B63/20Locks or fastenings with special structural characteristics with arrangements independent of the locking mechanism for retaining the bolt or latch in the retracted position released automatically when the wing is closed
    • 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
    • Y10T292/08Bolts
    • Y10T292/0863Sliding and rotary
    • Y10T292/0867Spring projected
    • 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
    • Y10T292/08Bolts
    • Y10T292/096Sliding
    • Y10T292/0969Spring projected
    • Y10T292/097Operating means
    • Y10T292/0997Rigid
    • 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
    • Y10T292/54Trippers
    • Y10T292/552Spring-arm detent
    • 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
    • Y10T292/54Trippers
    • Y10T292/558Sliding bolt, swinging detent

Description

Jan. 119 1926. l 1,570,135

G. c. EMMERT l Allround LATCH Filed March 8. 1924 INVENToR bbmk f lWww-r ATTORNEYS Patented Jan. 19, 1926.

UNITED STATES PATENT OFFICE.

GEORGE o. vnltUMIERT, F MOUNT MORRIS, ILLINOIS.

AUTOMATIC LATCH.

Application iii-ea March 9, 1924. Vseriai No. 697,892.

To all whom t may concern: 8 in the door 1. It will be observed from Be it known that I, Gnoncr. GEMMERna this construction that the bolt 5 may be actucitizen of the United States, and a resident ated from either side of the door 1. of Mount Morris, county of Ogle, State The bolt is carried by a casing 9. A

5 of Illinois, have invented a new and useful spring 10 bears against a washer'11, and a 60 Improvement in Automatic Iiatches,` of pin 12 that are carried by the bolt and also which the following is a yfull, clear, and eX- bears against one end of the casing 9. This act description. spring is adapted to yieldably hold the bolt My invention relates to improvements in in the recess 4.

automatic latches, and it consists in the com- The looking device for holding the bolt 05 binations, constructions, and arrangements in retarded position consists in a leaf spring herein described and claimed. f f 13 that has a portion thereof bent into a An object of Amy invention is to provide groove 14 (see Figure 3), this groove being an automatic latch which is an improvement adapted to receive the shankl of the bolt 5.

15 over the patented orm of my device, No. The walls of the grooves 14 have recesses 15 70 846,651, patented March 12, 1907. In the therein that receive the lugs 16 on the bolt patented form of the vdevice I showed a 5. It will be noted from Figure 2 of the latch in which the spring bolt was'automatdrawings thatthe wall 17 of the recess 15 ically released by a spring catch, when this 1s shorter than the wall 18. It will further 20 catch struck the door Jframe. In that form be noted that'the cam edge 19 extends from 75 of the device I also showed the bolt retainthe recess 15 to the body of the spring 13. ing catch as being disposed eXteriorly of The leaf spring 13 tends to move the groove the casing. The principal object of this 14 ntO engagement with the bolt 5. present device is to provide a catch that is From the foregoing description of the disposed within the casing and is thus provarious parts of the device, the operation 80 teeted, thereof may be readily understood. In Fig.

A 'further object of my invention is to 2 I have shown the bolt 5 moved into open provide a latch in `hich the handle projects position by the dotted lines in this figure. through the door, whereby the latch may As the bolt is moved from the full line pobe operated from either side of the door. sition into the dotted line position, the lugs S5 A further object of my invention is to v16 will engage with the cam edges 19 and provide a device of the type described will depress the groove-shaped member 14 which is simple in construction, and durable until the lugs are received in the recesses 15. and etiicient for the purpose intended. y The portion of the leaf spring that bears Other objects and advantages will appear against the stop 3 will now move the door 90 in the following specification, and the novel from the stop and will also move the groovefeatures of the invention will be particularly shaped member 14 into engagement with the ointed out in the appended claims. bolt 5, whereby the recess 15 will receive the My invention is illustrated in the accomlugs 16. The parts of the device will now panying drawings, Jforming part of this assume the position shown in dotted lines 95 application, in which in Figure 2. The door may now be opened Figure 1 is a plan view of the device, y in the ordinary manner. Figure 2 is a section along the line 2-2 In closing the door, it is merely necessary of Figure 1, and to swing the door so as to cause it to strike Figur-e 3 is a section along the line 3-3 of the stop 3. The portion of the leaf spring 100 Figure 2. 13 that projects beyond the casing 9 will In carrying out my invention I make use strike the stop 3 and will move the grooveof a. door 1 and a door trame 2. The frame shaped portion 14 from the position shown 2 has astop 3 against which the door 1 in Figure 3 into the full line position in Figabuts when the door 1s in closed position. ure 2. This movement releases the lugs 16 105 The stop 3 has a recess 4 that is adapted to and permits the spring 10 to move the bolt receive the tree end of the spring-pressed into the recess 4. The door is now locked bolt 5. As clearly shown in Figure 2, the in closed position. bolt 5 is provided with a handle 6 that has The device is extremely simple in cona portion 7 projecting through `an ope-ning struction -and provides .a novel means for 110 CII automatically locking the door When it is swung into closed position. As heretofore stated, the principal diii'erence in the present device and the patented device lies in the fact that the groove-shaped member lei takes the place of the locking dog 22 in the patented device, and is disposed inside ol the casing instead o'l exterior of the casing, as shown in the patented device.

I claim:

l. An automatic latch comprising` a casing, a spring pressed bolt slidably carried by said casing, lugs carried by said bolt, a bolt retaining member having a groove adapted to receive said bolt, the Walis of said groove 'having notches therein, aid notches being adapted to receive said lugs to hold said bolt in retracted position, said retaining member having a portion projecting beyond said casing, this portion being swung into operative position when said lugs are received in said notches.

2. An automatic latch comprising a casing, said casing being constructed so as to be secured to a door, a spring-pressed bolt slidably carried by said casing, lugs carried by said bolt, said bolt being provided With a handle, a portion of said handle extending through an opening in the door, a bolt-retaining member having a `groove adapted to tu receive said bolt, the Walls ot said groove having notches therein, said notches being adapted to receive said lugs to hold said bolt in retracted position, and stop members `formed by the Walls ot said groove, said refi by said bolt is held in retracted lposit-ion, and

stop members carried by said bolt retaining member for limiting the movement ot said bolt in one direction said bolt retaining member being Amovable to release said bolt. GEORGE C. EMMERT.

US697892A 1924-03-08 1924-03-08 Automatic latch Expired - Lifetime US1570135A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US697892A US1570135A (en) 1924-03-08 1924-03-08 Automatic latch

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Application Number Priority Date Filing Date Title
US697892A US1570135A (en) 1924-03-08 1924-03-08 Automatic latch

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Publication Number Publication Date
US1570135A true US1570135A (en) 1926-01-19

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Application Number Title Priority Date Filing Date
US697892A Expired - Lifetime US1570135A (en) 1924-03-08 1924-03-08 Automatic latch

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415825A (en) * 1944-11-08 1947-02-18 Lyon Metal Products Inc Shelving, including shelf adjustment fastener
US2544129A (en) * 1947-06-25 1951-03-06 Gen Motors Corp Wheel cover
US2570390A (en) * 1949-04-29 1951-10-09 La Verne M Schuldt Trunk lid lock for automobiles
US2912180A (en) * 1956-06-26 1959-11-10 Glenn A Lindberg Machine for handling rolls of floor covering
US3002587A (en) * 1959-05-12 1961-10-03 George L Matson Polish rod lubricator
US3013814A (en) * 1958-06-16 1961-12-19 Donald A Becks Side-cart attachment for bicycles
US5263810A (en) * 1991-01-16 1993-11-23 Kubota Corporation Working implement connection structure for a working vehicle having a boom assembly
US6045167A (en) * 1997-10-17 2000-04-04 Lauterbach; Heinrich Automatic push bar
US6823965B2 (en) * 2001-11-30 2004-11-30 Bil-Jax, Inc. Locking and securing device
US6832666B2 (en) * 2001-11-30 2004-12-21 Bil-Jax, Inc. Mobile utility scaffold having a platform locking and securing device
US20060145498A1 (en) * 2005-01-04 2006-07-06 Bartos Andrew L Spring loaded lock and latch with automatic reset capability
US20130056995A1 (en) * 2011-09-01 2013-03-07 Jamas Enterprises LLC. Sliding Pin Lock Mechanism for Overhead Door

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415825A (en) * 1944-11-08 1947-02-18 Lyon Metal Products Inc Shelving, including shelf adjustment fastener
US2544129A (en) * 1947-06-25 1951-03-06 Gen Motors Corp Wheel cover
US2570390A (en) * 1949-04-29 1951-10-09 La Verne M Schuldt Trunk lid lock for automobiles
US2912180A (en) * 1956-06-26 1959-11-10 Glenn A Lindberg Machine for handling rolls of floor covering
US3013814A (en) * 1958-06-16 1961-12-19 Donald A Becks Side-cart attachment for bicycles
US3002587A (en) * 1959-05-12 1961-10-03 George L Matson Polish rod lubricator
US5263810A (en) * 1991-01-16 1993-11-23 Kubota Corporation Working implement connection structure for a working vehicle having a boom assembly
US6045167A (en) * 1997-10-17 2000-04-04 Lauterbach; Heinrich Automatic push bar
US6823965B2 (en) * 2001-11-30 2004-11-30 Bil-Jax, Inc. Locking and securing device
US6832666B2 (en) * 2001-11-30 2004-12-21 Bil-Jax, Inc. Mobile utility scaffold having a platform locking and securing device
US20060145498A1 (en) * 2005-01-04 2006-07-06 Bartos Andrew L Spring loaded lock and latch with automatic reset capability
US7325845B2 (en) * 2005-01-04 2008-02-05 General Motors Corporation Spring loaded lock and latch with automatic reset capability
US20130056995A1 (en) * 2011-09-01 2013-03-07 Jamas Enterprises LLC. Sliding Pin Lock Mechanism for Overhead Door
US9187931B2 (en) * 2011-09-01 2015-11-17 Jamas Enterprises LLC Sliding pin lock mechanism for overhead door

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