Патент USA US2131315код для вставки
Sept. 27, 1938. J. G. DUNSEATH y `2,131,315 LOCK Filed DeC. 7, 1937 __7 Za . £2 Patented Sept. 27, 1938 i ' UNITED STATES PATENT oFFlcE _' LOCK James Gordon Dunseath, Reno, Nev., assignor of one-half to Harry Dunseath, Reno, Nev. Application December 7, 1937, Serial No.`> 178,579 ‘ 1 claim. (ci. 70-905 Y The present invention relates to new and useful improvements in locks particularly for the sliding doors of show cases although> it will be _ understood, of course, that the invention may 5 be used for any purpose for which it may be found adapted and desirable, _ _ Figure V12 is any elevational view of a portion of the key. ' ' Referring now to the drawing in detail, it«wi11 , be seen that the reference numeral I designates a portion 0f a ShOW CaSe COmDl‘iSing Sliding doors 2 and 3. The doors 2 and' 3 include inneriand The primary object of the invention is to pro- outer vertical meeting rails 4 and 5, respectively. vide, in a manner as hereinafter set forth, a lock of the aforementioned character comprising 10 means for positively securing the show case doors in closed position, said lock further including what may be referred to as e key plug which is adapted to be removed when not in use, Other objects of the invention are to provide a 15 look of the character described which will be YlViOllniìeli in the Outer meeting Teilv 5 Vfind eX tending therethrough is a metallic barrelß'. l-The Outer end DOi‘iìiOn 0f the bOI‘e 'l 0f the barrel 6 is comparatively simple in construction, Strong, I0 which is recessed in the inner face of the meet durable, highly efficient and reliable in use, compaet and which may be manufactured ai; 10W ing rail 5 and Secured il’lel‘eÈO by SCI'eWS ll The plate I0 has formed therein an opening I2 cost, which is aligned with the bore 'I of the barrel 6 ` . 0 counterbored, as at 8. _ The reference numeral 9 designates diametrically opposite grooves which extend longitudinally in the bore 'l and which communicate with the counterbore 8. _Fixed on the inner end 0f the barrel 6 is a metallic plate 15 20 A11 of the foregoing and stili further objects and into which ñanees I3 extend, said flanges 20 and advantages of the invention will become ClOSing the inner ends 0f the gI‘OOVeS 9. This is apparent from a, study of the following speci- shown to advantage in Figs. 3 and 7 of the draw ñcation, taken in connection with the accom- ing panying drawing wherein like characters of MOilnieCl in the inner meeting rail 4 and eX 25 reference designate corresponding parts through- JSendling iìheYeihI'Ough iS a metallic Sleeve I4 25 out the several Vìevvsy and wherein; Which, When the doors 2 and 3 are in CIOsed Figure 1 is a view in horizontal section through -DOSi'ßiOIL iS aligned With the barrel 6. As best a portion of a show case equipped with a lock in Seen in Fig- 6 0f the drawing, the Outer end D01“-V accordance with the present invention. tiOn 0f the Sleeve i4 iS enlarged. as at l5. ‘ 30 Figure 2 is a View in front elevation, showing The barrel 5 iS ÍOI‘ the reception 0f a remov- 30 the plug in the barre1 with the key removed. Y able key plug which iS designated generally by Figure 3 is a view in rear elevation, Showing the reference numeral I 6. The plug I6 includes the plug mounted in the barreL a metallic cylinder Il' which is insertable in the _ Figure 4 is a view in front elevation of the bore l 0f the barrel, Seid Cylindel‘ including a» 35 sleeve in the meeting rail of the innermost door flange i3 0n its Oili‘fel‘ end DOI‘iiOn Which iS e11- 35 which receives the pin 0n the plug. ’ gageable il). the COllIlteI‘bOI‘e 3 Of Said barrel. Figure 5 is a, View in rear elevation of the The reference numeral I9 designates tumblers sleeve shown in Fig. 4. which are mounted in the cylinder Il. The tum Figure 6 is e, view Showing a pori-,ion of the blers I9 are retracted through the medium of a 4:0 Outer meeting rail Side elevation and a.Y por.. key WhlCh iS insertable the 'Cylinder ` tion of the inner meeting rail in vertical section from the Outer end thereof (See Flg- 3)- The with the lock in operative position therein. o Figure 7 is a view in front elevation of the barrer Figure 8 is an elevational View of the plug with the key therein, the tumblers being retracted. _ _ _ _ 50 m Promoted Posltlon- of the Cyhnder .n Whlch .1S çngageable m an 45 gäîsga'izâ ¿i? 2131 g' 12) Whmh 1s provlded there ' _ key 20. is i‘eleasably secured in the plug IB through the med~1um 0f _a Spring pressed latch 01' detent 2l (see Fig. 11) 1n the outer end portion I1 >is a neck 23 which terminates of in a -segmental _ ’ Figure 10 1S 'an eleVa'tlOnal VleW 0f the Plug, looklng at the lnnei" end t'fllei‘eOiFigure 11 is a cross sectional View through the outer end portion of the plug, taken substan55 tially on the line Il-II oi Fig. 9. _ head 24. The head 24 is engageable behind the 50 flanges I3 when the doors 2 and 3 are locked, the enlarged portion I5 of the sleeve I4 accommodat ing said head. Projecting from the head 24 is a pin 25 which >is engageable in the sleeve I4. , It is thought that the manner of using the lock 55 'i 2,131,315 will be readily apparent from a consideration of the foregoing. As hereinbefore stated, when the lock constructed in accordance with the present invention will be readily understood and although doors 2 and 3 of the show case I are in closed position, the barrel 6 and the sleeve I 4 are aligned. a preferred embodiment of the device is as illus trated and described, it is to be understood that changes in the details of construction may be re sorted to which will fall within the scope of the To retract the tumblers I 9, the key 2U is inserted in the cylinder Il of the plug I 6. The plug I6,V using the key 20 as a handle, is then inserted in the barrel 6 in such a position that the segmental head 24 thereon will pass between the ñanges I3 and enter the enlarged portion I5 of the sleeve invention as claimed. I4, the pin 25 entering said sleeve I4. The plug on said plate and extending through said one What is claimed is: A lock for a pair of sliding doors, comprising a plate secured on one of said doors, a barrel ñxed 10 I6 is then rotated to the position shown in Fig. 3 , door, the plate having an opening therein aligned of the drawing to prevent withdrawal of the seg mental head 24 between the ilangesI I3 and bring'v the tumblers I9 into registry with the grooves 9. The key 20 is then removed from the plug I6 and the tumblers IS engage in the grooves 9 for se curing said plug against rotation in the barrel 6. with the bore of the barrel, said bore of the barrel having longitudinal grooves therein, diametrically opposite flanges in the opening in the plate at one end of the grooves, a removable plugiinsertable in the barrel and including a cylinder, a neck on one It will thus be seen that the plug I6 is secured end of said cylinder, a substantially segmental head on said neck adapted to pass between the against both rotary and longitudinal movement flanges and engageable therebehind upon rotation 20 in the barrel 6. With the pin 25 engaged in the sleeve I4 the doors 2 and 3 are, of course, locked together. The foregoing operation is substantial ly reversed to remove the plug I'I for unlocking the doors 2 and 3. The latch or detent 2I secures the,key 2U in the cylinder Il suñïlciently to permit said key to be used as a handle for withdrawing the plug I6 from the barrel 6. It is believed that the many advantages of a. of the cylinder for preventing withdrawal of said cylinder from the barrel, key operated tumblers mounted in the cylinder and engageable in the grooves >for securing said cylinder against rotation in the barrel, and a pin projecting from the head 25 and engageable in the other door for securing the doors together. JAMES GORDON DUNSEATI-I.