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Publication numberUS1174652 A
Publication typeGrant
Publication dateMar 7, 1916
Filing dateOct 23, 1912
Priority dateOct 23, 1912
Publication numberUS 1174652 A, US 1174652A, US-A-1174652, US1174652 A, US1174652A
InventorsEdmund H Banks
Original AssigneeEdmund H Banks
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Automatic twin door-latch.
US 1174652 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

E. H. BANKS.

AUTOMATIC TWIN DOOR LATCH. APPLICATION FI LED ocr.23. 1912.

1., 1M,65%. Patented Mar. 7,1916.

cheaply applied to a on the line 2-2 Fig.

""on'rrnn s raass EDMUND F. BANKS, OF TORBROOK, NOVA. SCO'IIA, CANADA.

AUTOMATIC TWIN DOOR-LATCH.

Specification of Letters Patent.

.Patented Mar. 7, 1916.

Application filed October 23, 1912. Serial No. 727,410.

To //7/ whom it may comer/1.

Be it known that l EDMUXD H. BANKS, a subject of the King of Great Brita-in, residing at Torbroolc. in the cosnty of Annapolis and Province of Nova Scotia, Dominion of Canada, have invented certain new and useful Improvements in Automatic Twin Door-Latches; and 1' do hereby 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.

This inventionrelates to door latches and more particularly to double door latches.

An object of the invention is to provide a. double latch having a single releasing member and which may be readily and door of the ordinary type now in use and which will securely fasten the door at the top and bottom.

Another object is to generally improve and simplify the construction of devices of this character and increase the eiiiciency thereof.

With these and other objects in view my invention will be more fully described and illustrated in the accompanyi g drawings forming a part of this application and in which Figure 1 is an elevational view looking at the outer edge of a door to which my invention is applied. Fig.

1. Fig. Sis a similar view on the line 3-3 Fig. ,2. Fig. at is a detail view of one of the latch bolts.

Referring more particularly to the above drawings in which similar reference charac tors designate corresponding part-s throughout. 10 designates the door having the vertical recess ii. near its outer vertical edge and extending, from top to bottom to accommodate my improved latch mechanism, designated by the numeral 12 which will now .be fully described.

r he upper and lower latch bolts 1.3 have their forward ends or heads enlarged as shown at 14 and the outer face thereoi beveled iii the usual manner. The opposite end of eath latch member 13 extends from the head 14: and is rounded as shown at 15, the :lrce end being flattened upon opposite sides as shown at 16 and provided with an clonprated slot 16 opening upon the fiat faces. By flattening the free or inner end of the member 13, the stop shoulders are provided, the purpose of which will pres- 2 is a vertical section ently appear. lhe pin 17 is positioned through the slot l6'--and has its opposite free ends secured in the opposite free ends of the outer U-shaped member 17, which member 17 has secured through its central portion, the outer end of the threaded connecting bar 18. movement of the rod is prevented by means of the nuts 18 carried thereby and engaged against the opposite lanes of the central portion of the U-shaped member 17, as clearly shown. The opposite end of the connecting bar 18 is secured through the central portion of a second U-shaped member 20, the ends of the said member 20 being pivoted to one end of the bell crank lever 21 by means of pivot pin 20. Longitudinal movement of Independent longitudinal the bar 18 independently of the J-shaped member 20 is prevented by means of the nuts 19 carried by this end of the bar 18 and engaged against the opposite faces of the central portion of the said member 20. Independent outward movement of the latch bolts 13 is limited by th pins 17' within the slots 16 while independent inward m0vement of the said latch bolts is limited by engagement of the stop shoulders 15 against the ends of the U-shaped member 17, as will be clearly apparent. Each bell crank lever is pivoted centrally upon a pin 22 carried by the rearwardly directed portion .23 at the central face plate 24 which in turn is properly embedded in theouter Vertical edgeof the door as will be clearly seen by referring to the drawings. The opposite arms of the bell crank levers 21 are connected by means of the central pin 25 upon which is also pivoted one end of the operating pin 26, the opposite end of which projects through a contraopening 27 in the plate 24, said plate 24; being pressed inwardly, as shown at 28, around the opening, thus permitting the outer end of the pin 26 to be flush with the main portion of the said plate 24 when the pin occupies its outer or normal position.

lhc end plates 29 are secured to the outer edge of the door, at the top and bottom thereof. and have their free ends bent at right angles and extended-over the opposite ends of the recess 11. as shown at 30. The ends 510 of the plates 29 are provided with suitable openings 31 through which the ends 13 oi the latch bolts project. The plates 29 also carry inwardly projected plates 32, being parallel with the ends and having openings 33 to accommodate the central pertions 15 of the members, said openings being in alinement with the openings 81, thus assuring proper movement of the latch memher.

The controlling springs are positioned around the central portions of the latch members and bear against the outer ends or heads 14 thereof and against the plates 32 to resiliently "retain said latch members in their outer. oroperative position. The main portion of the latch member and the springs 34 are inclosed by the housings 35 properly secured to the main portions of the plates 29, the turned, ends 30 thereof and the plates 32, as clearly shown in the drawings By forcing the operating pin 26 inwardly, the bell crank levers 21 will be swung upon the pins :22, bcrs inwardly through the medium of the members 17 and 18, and

arms 20 and hook against the tension of the controlling spring pin 26 is re- 04-, As soon as the operating leased, however, the controlling spring 34 will return the lever members to their normal or operative positions, the outward movement of the latch members 13 also serving to swing the bell crank levers 21 in opposite directions and return the operating pin 26 to its normal position.

From the foregoing it will be evident that I have provided a double latch mechanism which may be readily and cheaply applied to-doors of the type now in general use and thus drawing the latch mem-- which will be highly efiicient and effective in use. It will also be apparent that minor enanges may be made in the details of construction u Ethin the scope of the appended claim. without in the slightest departing from the spirit of my invention.

What is claimed is:

In combination with a twin latch mechanism, a pair of oppositely disposed bolts, guide bars connected therewith, expansion springs embracing the respective guide bars and connected to the same and to the bolts, a pair of pivoted bell cranks having adjacent arms provided with longitudinal slots, rods having U-shaped members adjustabiy connected to their ends, the ends of the U- snaped members adjacent the bolts being slidably and pivotall Y connected to the guide bars, said other U-shaped members being pivotally connected to the bell cranks, an operating push rod having one end disposed between adjacent arms of the bell cranks, said rod being movable at right angles to the pivot points of the bell cranks and a bolt passed through and slidable in the slots in the adjacent arms of the bell cranks and through the push rod.

In testimony whereof, I my signature, in presence of two Witnesses.

EDMUND H. BANKS.

Witnesses W. L. Macias, CHAS. O. TUCKER.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2635304 *Apr 15, 1949Apr 21, 1953Leo PetersSafety garment retainer
US2839912 *Oct 14, 1955Jun 24, 1958Gen Motors CorpTail gate latch
US2905493 *Mar 28, 1955Sep 22, 1959Tocchetto Virgil DanteTwin latch mechanism
US3625544 *Oct 22, 1969Dec 7, 1971Aeroquip CorpTruck-trailer rear door protector
US3712173 *Aug 14, 1970Jan 23, 1973Us ArmySpring latch for ammunition chute
US4386243 *Aug 4, 1981May 31, 1983Porta Systems Corp.Telephone test shoe having resilient latching means
US4445717 *May 18, 1981May 1, 1984Leigh Products, Inc.Flush bolt
US4703524 *Dec 28, 1984Nov 3, 1987Simmons Universal CorporationCrib
US4836588 *Mar 16, 1987Jun 6, 1989Ferco International Usine De Ferrures De BatimentAutomatic double-action casement bolt
US5004277 *May 29, 1990Apr 2, 1991Triangle Brass Manufacturing CompanyFlush bolt mechanism for double doors
US5246272 *Sep 17, 1991Sep 21, 1993Combi CorporationBaby carriage or the like including reclining or collapsing mechanism
US5901989 *Jul 16, 1997May 11, 1999ReflectoliteMulti-point inactive door lock
US5946953 *Apr 6, 1998Sep 7, 1999Steelcase Inc.Locking system for storage cabinets
US6231091 *Jun 9, 1998May 15, 2001Tri/Mark CorporationControl mechanism for operating a latch
US6752440 *Sep 11, 2002Jun 22, 2004Arvin Meritor Light Vehicle Systems (Uk) Ltd.Aperture closure system
US6899362Aug 26, 2002May 31, 2005The Eastern CompanyLinkage assembly for operating one or more latches
US7073220 *Mar 26, 2004Jul 11, 2006Hill-Rom Services, Inc.Bed siderail having a latch
US7126066Mar 14, 2005Oct 24, 2006The Eastern CompanyPush button actuator
US7205492Sep 11, 2006Apr 17, 2007The Eastern CompanyPush button actuator
US7306265Jul 21, 2004Dec 11, 2007The Eastern CompanyPush button actuator
US8084701Jun 5, 2009Dec 27, 2011The Eastern CompanyPush button actuator
US8109541 *Apr 29, 2009Feb 7, 2012Compal Electronics, Inc.Latching structure of mobile electronic device
US8328246 *Feb 3, 2010Dec 11, 2012Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd.Enclosure for electronic device
US8398126May 21, 2008Mar 19, 2013Truth Hardware CorporationMultipoint lock mechanism
US8550506Jun 30, 2010Oct 8, 2013Truth Hardware CorporationMulti-point mortise lock mechanism for swinging door
US8826708 *Feb 25, 2013Sep 9, 2014Unikey Componentes Industrials Ltda.Locking mechanism
US8899635Oct 5, 2009Dec 2, 2014Truth Hardware CorporationSliding door multipoint mortise lock with shoot bolts
US20130219976 *Feb 25, 2013Aug 29, 2013Antonio Jorge Freire LopesLocking Mechanism
DE1075976B *Oct 12, 1956Feb 18, 1960Gen Motors CorpTuerverschluss
Classifications
U.S. Classification292/36, 292/40, 292/DIG.180, 292/34
Cooperative ClassificationY10S292/18, E05B7/00, E05C9/043