US2547108A - Door latch - Google Patents

Door latch Download PDF

Info

Publication number
US2547108A
US2547108A US749793A US74979347A US2547108A US 2547108 A US2547108 A US 2547108A US 749793 A US749793 A US 749793A US 74979347 A US74979347 A US 74979347A US 2547108 A US2547108 A US 2547108A
Authority
US
United States
Prior art keywords
bolt
door
rod
edge
pin
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
US749793A
Inventor
Carl E Anderson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US749793A priority Critical patent/US2547108A/en
Application granted granted Critical
Publication of US2547108A publication Critical patent/US2547108A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C1/00—Fastening devices with bolts moving rectilinearly
    • E05C1/08—Fastening devices with bolts moving rectilinearly with latching action
    • E05C1/12—Fastening devices with bolts moving rectilinearly with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
    • E05C1/14—Fastening devices with bolts moving rectilinearly with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the handle or member moving essentially towards or away from the plane of the wing or frame
    • 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
    • Y10T292/08—Bolts
    • Y10T292/096—Sliding
    • Y10T292/0969—Spring projected
    • Y10T292/097—Operating means
    • Y10T292/0976—Sliding cam
    • 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
    • Y10T292/08—Bolts
    • Y10T292/096—Sliding
    • Y10T292/1014—Operating means
    • Y10T292/1022—Rigid
    • Y10T292/1024—Friction catch
    • 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
    • Y10T292/08—Bolts
    • Y10T292/096—Sliding
    • Y10T292/1014—Operating means
    • Y10T292/1022—Rigid
    • Y10T292/1028—Sliding catch

Definitions

  • the present invention relates to new and useful improvements in door latches and more particularly to means for retracting the latch bolt by a pushing or pulling movement of the opposite door knobs or handles.
  • the invention embodies the provision of a transverse bar slidably mounted in a door and provided with operating knobs at the opposite sides of the door together with a spring projected sliding latch bolt operated by a cammingaction between the bar and the: bolt to retract the bolt.
  • a further object of the invention is to provide means for locking the bolt against retracting movement.
  • Another object of the invention is to provide a latch bolt having a tapered outer end adapted to engage the complementary shaped recess in a door jamb to effect a tight fitting and antirattling engagement of the bolt with the jamb.
  • a still further object is to provide a device of" this character of simple and practical construction, which is efiicient and reliable in operation, relatively inexpensive to manufacture and install in position on a door and which is otherwise Well adapted for the purposes for which the same is intended.
  • Figure l is a fragmentary view in elevation of the edge of a door showing the latch bolt mounted in positiontherein.
  • Figure 2 is an enlarged fragmentary sectional view taken on a line 22 of Figure 1.
  • Figure 3 is a sectional view taken on a line 33 of Figure 2
  • Figure 4 is a view in elevation of the keeper for the latch bolt.
  • the numeral 5 designates a door having a cylindrical recess o'r chamber 6 in its free edge and in the outer end of which a bushing I is secured by means of prongs 8 formed on a flange 9 on the outer end of the bushing, the prongs penetrating the outer edge of the door.
  • the door 5 is also formed with a transverse opening l -U in which a rod ll is slidably mounted with the" ends of the rod projecting outwardly from opposite sides of the door.
  • Knobs or handles l2 are adjustably secured atthe ends of the rod by means of shouldered set screws l3 selectively received in longitudinally spaced openings M in the rod adjacent the end-portions thereof.
  • the central portion of the rod I! is formed with a laterally projecting cam I5 working in a transverse opening [6 at the inner end of a sliding latch bolt I! mounted in the bushing I.
  • the rear end of the bolt IT in the region of the opening [6 is of hoilow construction and is provided with a roller I 8 journalled in the hollow rear end of the bolt behind the rod l I and against which the cam edge I9 of the cam I5 works during the sliding movement of the rod in one direction.
  • a coil spring 20 is positioned at the inner end of the chamber 6 behind the bolt [1 to project the front end of the bolt outwardly of the edge of the door, said front end of the bolt being tapered as shown at 2
  • a keeper plate 24 is secured'to the door jamb 23 and is formed with an opening 25 in alignment with the recess 22 to guide the tapered end 2
  • the bolt I1 is formed with an annular groove 26 for receiving the inner end of a locking pin 27, the pin being slidably mounted in an opening 28 in one side of the door and is movable into and out of locking position in the groove 26 by means of a knob 29 at the outer endof the pin.
  • the pin 21 is formed with a longitudinally extending groove 30 in which a coil spring 3! is frictionally held by a shouldered set screw 32 to secure the locking pin in either an inward or outward position.
  • the screw 32 is carried by a lug 33 at one edge of a dome-shaped plate 34 secured to the side of the door by prongs 35, the plate having a central opening 36 through which the rod II is slidable.
  • a similar plate 31 is secured to the opposite side of the door.
  • the bolt I1 is projected outwardly at the edge of the door by the spring 20 to engage the keeper of the door jamb 23.
  • the outward movement of the bolt also causes the roller [8 to ride against the cam I 9 to move the rod H toward the left as shown in Figure 2'.
  • the bolt I! may be retracted either by a pulling force exerted on the knob I2 at the right-hand end of the rod or by a pushing force exerted on the knob at the opposite end of the rod.
  • the bolt l1 may be secured against retracted movement by pushing the locking pin 2'! inwardly.
  • a handle for operating said bolt an escutcheon plate for the handle, a lug on one edge of the escutcheon plate, a locking pin slidable in the lug for entering a recess in the bolt to hold the latter in locked position, said pin having a longitudinal groove, and friction means carried by the lug and seated in the groove to hold the pin in either a looking or releasing position.
  • a handle for operating said bolt an escutcheon plate for the handle, a lug on one edge of the escutcheon plate, a locking pin slidable in the lug for entering a recess in the bolt to hold the latter in locked position, said pin having a longitudinal groove, a coil spring carried by the lug and frictionally seated in the groove to hold the pin in either a looking or releasing position, and a set screw threaded in the lug and engagin the spring to adjust the tension thereof.

Description

April 3, 1951 c. E. ANDERSON 2,547,108
DOOR LATCH Filed May 22, 1947 Fig.4 2/ Fig. 2
v I 3 25 I @W I uventor Carl E. Anderson Patented Apr. 3, 1951 UNITED STATES PATENT OFFICE 7 v noon LATCH Y Carl E. Anderson, Barberton, Ohio Application May 22, 1947, Serial N0..749,793 I v The present invention relates to new and useful improvements in door latches and more particularly to means for retracting the latch bolt by a pushing or pulling movement of the opposite door knobs or handles.
More specifically, the invention embodies the provision of a transverse bar slidably mounted in a door and provided with operating knobs at the opposite sides of the door together with a spring projected sliding latch bolt operated by a cammingaction between the bar and the: bolt to retract the bolt.
A further object of the invention is to provide means for locking the bolt against retracting movement.
Another object of the invention is to provide a latch bolt having a tapered outer end adapted to engage the complementary shaped recess in a door jamb to effect a tight fitting and antirattling engagement of the bolt with the jamb.
A still further object is to provide a device of" this character of simple and practical construction, which is efiicient and reliable in operation, relatively inexpensive to manufacture and install in position on a door and which is otherwise Well adapted for the purposes for which the same is intended.
Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in which:
Figure l is a fragmentary view in elevation of the edge of a door showing the latch bolt mounted in positiontherein.
Figure 2 is an enlarged fragmentary sectional view taken on a line 22 of Figure 1.
Figure 3 is a sectional view taken on a line 33 of Figure 2, and
Figure 4 is a view in elevation of the keeper for the latch bolt.
Referring now to the drawing in detail wherein for the purpose of illustration I have disclosed a preferred embodiment of the invention, the numeral 5 designates a door having a cylindrical recess o'r chamber 6 in its free edge and in the outer end of which a bushing I is secured by means of prongs 8 formed on a flange 9 on the outer end of the bushing, the prongs penetrating the outer edge of the door. The door 5 is also formed with a transverse opening l -U in which a rod ll is slidably mounted with the" ends of the rod projecting outwardly from opposite sides of the door. Knobs or handles l2 are adjustably secured atthe ends of the rod by means of shouldered set screws l3 selectively received in longitudinally spaced openings M in the rod adjacent the end-portions thereof.
The central portion of the rod I! is formed with a laterally projecting cam I5 working in a transverse opening [6 at the inner end of a sliding latch bolt I! mounted in the bushing I.
The rear end of the bolt IT in the region of the opening [6 is of hoilow construction and is provided with a roller I 8 journalled in the hollow rear end of the bolt behind the rod l I and against which the cam edge I9 of the cam I5 works during the sliding movement of the rod in one direction. A coil spring 20 is positioned at the inner end of the chamber 6 behind the bolt [1 to project the front end of the bolt outwardly of the edge of the door, said front end of the bolt being tapered as shown at 2| for entering a complementary shaped recess 22 in the edge of a door jamb 23. A keeper plate 24 is secured'to the door jamb 23 and is formed with an opening 25 in alignment with the recess 22 to guide the tapered end 2| of the bolt into the recess of the keeper.
The bolt I1 is formed with an annular groove 26 for receiving the inner end of a locking pin 27, the pin being slidably mounted in an opening 28 in one side of the door and is movable into and out of locking position in the groove 26 by means of a knob 29 at the outer endof the pin.
The pin 21 is formed with a longitudinally extending groove 30 in which a coil spring 3! is frictionally held by a shouldered set screw 32 to secure the locking pin in either an inward or outward position.
The screw 32 is carried by a lug 33 at one edge of a dome-shaped plate 34 secured to the side of the door by prongs 35, the plate having a central opening 36 through which the rod II is slidable. A similar plate 31 is secured to the opposite side of the door.
In the operation of the device, the bolt I1 is projected outwardly at the edge of the door by the spring 20 to engage the keeper of the door jamb 23. The outward movement of the bolt also causes the roller [8 to ride against the cam I 9 to move the rod H toward the left as shown in Figure 2'. The bolt I! may be retracted either by a pulling force exerted on the knob I2 at the right-hand end of the rod or by a pushing force exerted on the knob at the opposite end of the rod. The bolt l1 may be secured against retracted movement by pushing the locking pin 2'! inwardly.
I claim:
1. In combination with a sliding door bolt, a handle for operating said bolt, an escutcheon plate for the handle, a lug on one edge of the escutcheon plate, a locking pin slidable in the lug for entering a recess in the bolt to hold the latter in locked position, said pin having a longitudinal groove, and friction means carried by the lug and seated in the groove to hold the pin in either a looking or releasing position.
2. In combination with a sliding door bolt, a handle for operating said bolt, an escutcheon plate for the handle, a lug on one edge of the escutcheon plate, a locking pin slidable in the lug for entering a recess in the bolt to hold the latter in locked position, said pin having a longitudinal groove, a coil spring carried by the lug and frictionally seated in the groove to hold the pin in either a looking or releasing position, and a set screw threaded in the lug and engagin the spring to adjust the tension thereof.
' CARL E. ANDERSON.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS
US749793A 1947-05-22 1947-05-22 Door latch Expired - Lifetime US2547108A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US749793A US2547108A (en) 1947-05-22 1947-05-22 Door latch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US749793A US2547108A (en) 1947-05-22 1947-05-22 Door latch

Publications (1)

Publication Number Publication Date
US2547108A true US2547108A (en) 1951-04-03

Family

ID=25015221

Family Applications (1)

Application Number Title Priority Date Filing Date
US749793A Expired - Lifetime US2547108A (en) 1947-05-22 1947-05-22 Door latch

Country Status (1)

Country Link
US (1) US2547108A (en)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2673109A (en) * 1952-04-24 1954-03-23 Horace E Frost Screen door latch
US2721092A (en) * 1953-04-17 1955-10-18 Charles J Simmons Door lock
US2726108A (en) * 1951-06-30 1955-12-06 Wright Products Inc Door latch
DE1017943B (en) * 1952-04-04 1957-10-17 Bronswerk Nv Device for moving a pivotable wing with the aid of a pressure medium
DE1018750B (en) * 1952-04-24 1957-10-31 Bronswerk Nv Device for pivoting a wing of doors or the like.
DE1061652B (en) * 1953-12-22 1959-07-16 Jacobson Van Den Berg & Co Bolt latch lock
DE1080895B (en) * 1954-07-13 1960-04-28 Jacobson Van Den Berg & Co Bolt latch lock
US2939308A (en) * 1957-02-04 1960-06-07 Jr Earl M Trammell Safety door locks
US3141691A (en) * 1962-01-22 1964-07-21 George S Gunard Automatic window stop
US3187868A (en) * 1961-05-31 1965-06-08 Sundstrand Corp Power transmission mechanism
US3314704A (en) * 1964-06-17 1967-04-18 John L Jensen Door latch assembly
US3330341A (en) * 1965-12-06 1967-07-11 Rockwell Mfg Co Remotely positionable and removable wellhead connection and sealing apparatus
US3471188A (en) * 1966-11-25 1969-10-07 Gen Alarm Corp Security system
US5157953A (en) * 1990-09-24 1992-10-27 Hung Sheng Hu Push and pull type cylinder lock
US5286074A (en) * 1993-02-23 1994-02-15 Lin Jui Chang Handle lock
US5941578A (en) * 1997-08-07 1999-08-24 Shamblin; Rosco Impact resistant safety door latch mechanism
US5964487A (en) * 1997-08-07 1999-10-12 Shamblin; Rosco Impact resistant security door auxiliary latch mechanism
US20060208497A1 (en) * 2004-12-06 2006-09-21 James DelGrosso Worry-Free Lock Device
US20070158953A1 (en) * 2004-10-22 2007-07-12 Luke Liang Window sash latch
US7293934B1 (en) * 2005-03-15 2007-11-13 Ho Cheng Garden Tools Co., Ltd. Telescopically adjustable pipe
US20100244465A1 (en) * 2009-03-31 2010-09-30 De Mola Manuel Loret Two assembly parts latch system
US8789858B2 (en) 2009-03-31 2014-07-29 The Young Engineers, Inc. Two assembly parts latch system
GB2513668A (en) * 2013-05-01 2014-11-05 Nicholas James Birchall Mortice latch
US20140361552A1 (en) * 2011-09-05 2014-12-11 Wayne Hartford Apparatus for a Door Latch
US20150007620A1 (en) * 2012-04-05 2015-01-08 Byungman YOON Apparatus for opening and closing entrance
US20150013401A1 (en) * 2012-04-05 2015-01-15 Byungman YOON Apparatus for opening and closing front entrance
US9394732B1 (en) * 2015-12-01 2016-07-19 Abdulaziz K H. M. A. A. Ahmad Hands-free door latch mechanism

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE40266C (en) * W. GLEITZ in Magdeburg, Moltkestr. 6 Room door - mortise lock
US57423A (en) * 1866-08-21 Improvement in locks
US336374A (en) * 1886-02-16 Hofeerjof
US980630A (en) * 1910-04-29 1911-01-03 Edson Granger Combined lock and latch.
US1287973A (en) * 1918-02-16 1918-12-17 Archibald B Gruber Push-button latch.
USRE15569E (en) * 1923-04-03 ottinger
GB524590A (en) * 1939-02-01 1940-08-09 Jack William Taylor Improvements relating to locks and latches

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE40266C (en) * W. GLEITZ in Magdeburg, Moltkestr. 6 Room door - mortise lock
US57423A (en) * 1866-08-21 Improvement in locks
US336374A (en) * 1886-02-16 Hofeerjof
USRE15569E (en) * 1923-04-03 ottinger
US980630A (en) * 1910-04-29 1911-01-03 Edson Granger Combined lock and latch.
US1287973A (en) * 1918-02-16 1918-12-17 Archibald B Gruber Push-button latch.
GB524590A (en) * 1939-02-01 1940-08-09 Jack William Taylor Improvements relating to locks and latches

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2726108A (en) * 1951-06-30 1955-12-06 Wright Products Inc Door latch
DE1017943B (en) * 1952-04-04 1957-10-17 Bronswerk Nv Device for moving a pivotable wing with the aid of a pressure medium
US2673109A (en) * 1952-04-24 1954-03-23 Horace E Frost Screen door latch
DE1018750B (en) * 1952-04-24 1957-10-31 Bronswerk Nv Device for pivoting a wing of doors or the like.
US2721092A (en) * 1953-04-17 1955-10-18 Charles J Simmons Door lock
DE1061652B (en) * 1953-12-22 1959-07-16 Jacobson Van Den Berg & Co Bolt latch lock
DE1080895B (en) * 1954-07-13 1960-04-28 Jacobson Van Den Berg & Co Bolt latch lock
US2939308A (en) * 1957-02-04 1960-06-07 Jr Earl M Trammell Safety door locks
US3187868A (en) * 1961-05-31 1965-06-08 Sundstrand Corp Power transmission mechanism
US3141691A (en) * 1962-01-22 1964-07-21 George S Gunard Automatic window stop
US3314704A (en) * 1964-06-17 1967-04-18 John L Jensen Door latch assembly
US3330341A (en) * 1965-12-06 1967-07-11 Rockwell Mfg Co Remotely positionable and removable wellhead connection and sealing apparatus
US3471188A (en) * 1966-11-25 1969-10-07 Gen Alarm Corp Security system
US5157953A (en) * 1990-09-24 1992-10-27 Hung Sheng Hu Push and pull type cylinder lock
US5286074A (en) * 1993-02-23 1994-02-15 Lin Jui Chang Handle lock
US5964487A (en) * 1997-08-07 1999-10-12 Shamblin; Rosco Impact resistant security door auxiliary latch mechanism
US5941578A (en) * 1997-08-07 1999-08-24 Shamblin; Rosco Impact resistant safety door latch mechanism
US8511724B2 (en) 2004-10-22 2013-08-20 Vision Industries Group, Inc. Window sash latch
US20070158953A1 (en) * 2004-10-22 2007-07-12 Luke Liang Window sash latch
US8336930B2 (en) * 2004-10-22 2012-12-25 Vision Industries Group, Inc. Window sash latch
US20060208497A1 (en) * 2004-12-06 2006-09-21 James DelGrosso Worry-Free Lock Device
US7293934B1 (en) * 2005-03-15 2007-11-13 Ho Cheng Garden Tools Co., Ltd. Telescopically adjustable pipe
US8770634B2 (en) 2009-03-31 2014-07-08 The Young Engineers, Inc. Two assembly parts latch system
US8757675B2 (en) * 2009-03-31 2014-06-24 The Young Engineers, Inc. Two assembly parts latch system
US20100244465A1 (en) * 2009-03-31 2010-09-30 De Mola Manuel Loret Two assembly parts latch system
US8789858B2 (en) 2009-03-31 2014-07-29 The Young Engineers, Inc. Two assembly parts latch system
US20140361552A1 (en) * 2011-09-05 2014-12-11 Wayne Hartford Apparatus for a Door Latch
US9145719B2 (en) * 2011-09-05 2015-09-29 Milocon Inc. Apparatus for a door latch
US20150007620A1 (en) * 2012-04-05 2015-01-08 Byungman YOON Apparatus for opening and closing entrance
US20150013401A1 (en) * 2012-04-05 2015-01-15 Byungman YOON Apparatus for opening and closing front entrance
US9556644B2 (en) * 2012-04-05 2017-01-31 Byungman YOON Apparatus for opening and closing entrance
US9556645B2 (en) * 2012-04-05 2017-01-31 Byungman YOON Apparatus for opening and closing front entrance
GB2513668A (en) * 2013-05-01 2014-11-05 Nicholas James Birchall Mortice latch
US9394732B1 (en) * 2015-12-01 2016-07-19 Abdulaziz K H. M. A. A. Ahmad Hands-free door latch mechanism

Similar Documents

Publication Publication Date Title
US2547108A (en) Door latch
US3437364A (en) Sliding door lock assembly
US2743600A (en) Tubular lock
US3213654A (en) Pop-out handle and lock assembly
US2439036A (en) Adjustable lock keeper
US1846364A (en) Door latch
US2592274A (en) Adjustable keeper
US2124897A (en) Door lock
US3363926A (en) Locking mechanism for a door lock assembly
US2542130A (en) Lock set for doors
US2939737A (en) Door lock
US3206954A (en) Lockable door latch
US2420114A (en) Latch
US2633732A (en) Door lock
GB1439696A (en) Double-action locks for fitting to doors and similar structures
US2423988A (en) Locking latch
US1413979A (en) Door latch
GB1440253A (en) Cylindrical lock set
US3437363A (en) Sliding patio door lock assembly
US4318558A (en) Latch bolt mechanism
US2431814A (en) Locking latch
US1839406A (en) Keyless lock
US2528757A (en) Door key fastener
US2507860A (en) Latch
US1535478A (en) Latch