USRE11564E - squires - Google Patents

Description

O. SQUIRES. 3 Sheets-Sheet 2.

LOOK.

III

Reissued Aug. 1 8, 1896 I UNIT-En; STATES PATENT OFFICE.

CHARLES 'WIQSQ'UIRES, or SPRINGFIELD, MASSACHUSETTS.

'LOCK".

,SPECIFIGATIONlfonrfing part of Beiss'ued Letters Patent No. 11,564, dated August 18, 1896'.

' OriginalNo. 554,965, dated February 18,1896.

To all whom it may concern:

Be it known thatl CHARLES W. Sour-ans, a citizen of the' United States, residing at Springfield, in the county of Hampden and. State of Massachusetts, have invented certain I new and useful Improvements in Locks and I do hereby declare the following tobe a full,

' clear, and exact description of the invention,

- in g drawings, and to the letters and numerals such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyof reference-marked thereon, which form a part of this specification.

This invention relates to looks for doors an analogous uses, and more particularly to the description of locks termed night latch looks, the object being to provide an im proved look of this class; and the invention consists in the improved details of lock construction, all as hereinafter fully described.

In the drawings'forming part of this specification, Figure 1 is a rear side'elevation of a lock case and lock mechanism'therein contained embodying my improvements, said figure also showing a detail part of the lock in side elevation and theplate which receives the outer end of the bolt, .Fig. 1 is a perspective view of said bolt-receiving plate, this figure indicating in dotted lines the operative position of a lock part below described. Fig. 1 is a perspectivev'iew of a plate having anopening therethrough to receive the end of the bolt. Fig. 2 is a front end view of'the lock, a part of a door to which the lock may be secured being shown in this figure.

Fig. 3 illustrates sections of a door and doorjanib and the lock and bolt-receiving plate thereon in section ,on line 3 3, Fig. 1, this figure illustrating also the cscutcheon for the lock in section. the lock on line 4, Fig. 1, and a part of a door and the escutcheon therein. Figs. '5 and (i are similar views of the lock to that shown in' Fig. -1, but showing the mechanism thereof in difierent operative positions. Fig.7 is a perspective view of the key and of detail parts of the lockhereinaiter described. Fig. 8 cmbraces, in perspective views, the case and detail parts of .thp lock mechanism, and includ- Fig. 4 is a sectional view of Application for reissue filed May 21, 1896. Serial K0. 592,489.

ing the parts in detail below described.

of the escutcheon as In the drawings,'A indicates the lock-case,

arms thereon; e e, studs on said arms, and a a perforated post on one side of boltB. I

C is a projecting stud on the inner surface of the lock-case A, and his a spring support ing rod having one end abutting against said stud O, and its opposite end extends freely through the perforation in said post. A coiled spring "(1 is placed on said rod 5, and is normally more or less compressed between said posta) and stud O and acts to slide bolt B outwardly through plate 2.

D is a knob having a shank extending through the lock-case A and fixed in or to bolt-l3.

The bolt 3 of the lock is constructed as shown in perspective view among -the parts of the lockin Fig. 8, and its place therein is that illustrated in Figs. 5 and 6. A two-armed lever E occupies a position in the look under said bolt 3, and is fixed on the hollow shank 4 of an operating-knob 5, said shank having a section of its inner end cut off to form two shoulders 6 6 thereon, with which the key engages for the operation of said bolt 3 thereby, as below described. The'said bolt 3 .has' two wings 7 '7 extending laterally from the opposite edgesthereof, each of said wings having a lip 8 thereon perforated to receive the end of a spring-sustaining rod 9 and a lip 10 for engagementwith one arm of said lever E Bolt 3 has also a stud or ward 12 thereon for operation in connection with the tumblers of the lock, and a pin or stud 13 on'one edge'for engagement with the saidbolt'B, all as below described. Springs 14 are supported onsaid rodsfl, which act to shoot bolt 3 outwardly,

said rods abutting by one end against the lock case, as shown in Figs. 1, 5, and 6. The said bolt 15, located between bolt 3 and the side of the case A, and also the latter-named bolt, are both properly supported for independent and for coinciding sliding movements, as and for the purposes below described. The'said lat- I look-case.

3 is drawn into the look by theaction of thetwo-armed lever E, or otherwise, bolt B must takea like position.

The tumblers F of the lock, made from suitable metal plates, of any desired number,

(three being herein shown,) are of oblong form, and are pivoted by pivot-stud r to the Each tumbler has the edge recesses i i; the longitudinal slot 0 in its frame end, and the opening 11 at the inner end of said slot, and a key-opening m throughit. Saidrecesses, slots, and openings n in the tumblers are substantially in the same positions in each of them.

The key-engaging borders of the openings m in the tumblers F (see Figs. 7 and '8) are in each tumbler arranged preferably at different distances from a longitudinally-central line. .drawn from the center of the tumblerpivot. r to a point centrally between the borders of the slot 0 in the free end of, the tumbler. The said variation of the positions of the parts of the tumblers which the key 15 engages provides convenient means for effecting innumerable changes in tumblers and keys, whereby greater security against the unauthorized operation of the lock is obtained.

The operative positions of said'tumblers in the manipulation of the lock are those shown in Figs. 1, 5, and 6. Fig. 5 shows them supported in a horizontal position by engagement with one of the studs e on an arm of the-bolt B. Figs. 1 and 6 show them with their free ends dropped by gravity to a diiferent position, the first to one by which the bolt is locked in anoutward one, and the second one by which the bolt is locked in an inward position.

A key-guiding post'J, Fig. 8, havingalongi-- tudinal slot f. therein, passes through said key-openings m in thetumblers, and one end thereof enters the inner end of the said 'hollow shank 4 of the knob 5, Figs. 4 and 7. Said post J has a diameter within the keyopenin-gs m of the tumblers of less extent than the width of that part of the key 15 lying between the edges thereof, which are engaged by the tumblers, to the end that said key has a clear engagement with said tumblers. 'Said key when put into the lock has its extremity t entering very nearlyv to the bottom of the slot in said post J, (see Fig. 4,) and thereby bringing the projection 22 on one side of the key (see Fig. 7) to a position in the lock whereby it will, when turned to lift the tumblers, engage one of theshoulders 6 6 on said hollow shank 4, and thus turn the latter and the lever E thereon to bring said lever against one of the lips 10 on bolt 3, and thus draw back said bolt. The turning of the key to operate lever E, as aforesaid, causes the tumblers to be brought to the positions shown in Fig. 5, whereby the slots 0 in the tumblers are all free to allow the Ward 12 on bolt 3 to enter them and permit the bolt to move back,

The escutcheon and key-guiding parts which are adapted for use with locks of this class are illustrated in Figs. 3, 4, and 8,

wherein 16 is a metal washer applied between the lock and the door 1.7. 18 is a tube passing through said washerand having a flange on .its inner end engaging therewith. The said tube 18 has its outer end internally screw-threaded, asshown. The escutcheonplate 19 has the tube 20 fixed in its inner side, which is exteriorly screw-threaded for engagement with the interior of said tube 18. A key-guiding barrel 21, which is longitudinallyslotted to receive the key 15, is fitted closely into said tube 20, whereby it is held in place therein, but can be turned by the key when the latter is entered into said post J for operating'the' tumblers, as above set forth,

The above-described escutcheon parts, and particularly the screw-connected tubes 18 and 20, provide convenient means for adjusting the same to doors of varying thicknesses, and for firmly securing the escutcheon to a, door by-turning the plate 19. and screwing tube 20 into tube 18, so that .said plate 19 remains fixed in proper position to receive a key.

The tumblers F have an aperture kthrough them for permitting a screww to be inserted, which secures the back plate A of the lookcwe to the latter. 5

H indicates the usual bolt-plate on the door-jamb K. The lock may, if desired, be

used with an ordinary perforated plate N, se-' cured to said door-jamb, as illustrated in Fig. 1".

The dotted diagrams R in Figs. 1 and 1 indicate the position of the end of the boltB as abutting against the face of the plate in i the door-jamb, while the end of the bolt 3 is in engagement with plate H or N. The said abutment or bolt B against the jamb-plate, as aforesaid, while the outer end of the bolt is in a locked position in said plate, as in Fig. 1, results in bringing'the studs e on the arms 0 of the bolt B to the position relative to the recesses i in the borders of the tumblers shown in Fig. 1, thus permitting the tumblers to drop behind the ward 12 on bolt 1 3 and retain said boltin said locked position.

When the door on which the lock is seen red isv open, theouter end of bolt 3 normally projects beyond the face-plate 2 of the look, as in ordinary spring-locks, actuated by the springs 14, and at the same time the outer end of bolt B likewise projects, by; the action of spring d, beyond the surface ofsaid plate 2; but under said conditions bolts 3 and B, the studs e on the arms 0 of bolt B are brought to a position forward of the recesses i in the edges of the tumblers, thereby sustainin g their free ends all in line, so that bolt 3 may have a free rearward motion when the end thereof strikes the jamb-plate H in sh-ut IIO *letting the ends of the tumblers drop behind ting the-door. The door is' thereby locked, but said inward movement of the locking-bolt 3 causes the engagement of the pin 13 on said last-named bolt with one of the studs 2 on an arm a of bolt 13, whereby the said studs (2 are brought to the positions relative to the recesses z' in the tumblers shown in Fig. 1,

the said ward 12 on the bolt'3, thereby looking the latter in its outward position. The door may now be unlocked from the inside by'drawing boltB and studs e farther backward through knob I) to the position shown in Fig. 5, and then turning knob to operate lever I, or the door maybe'unloeked from the outside by the key 15 operating the tumblers and shank at and lever E, as aforesaid.

The bolts 3 and I3 may both be secured in the positions shown in Fig. 6, wherein neither bolt projects beyond the face of the plate 2, by pushing said bolts inwardly by applying the fingers directly thereto, or by operating the lever E by knob 5 or by key 15. After the last-named adjustment, if desired, bolt 3 may be released by moving bolt B, through knob D, farther backward, as in Fig. 5, thereby, through studs 62, (one or both,) bringing slots 0 in the ends of the tumblers into such position relative to ward 12 on bolt 3 that the said ward is disengaged from the tumblers.-

Having thus described my invention, what.

I claim, and desire to secure by Letters Pat.-

- out, is-- 1. In a lock, alatching-bolt, and a tumblersetting bolt, combined with a series of keyoperated tumblers operated by said settingbolt to lock the latching-bolt in position, substantially as shown.

2. In a look, a latching-bolt, anda tumblersetting bolt having an independent movement of the latching-bolt, and which setting-bolt is forced inwardly by the bolt-plate when the latching-bolt is in engagement therewith, combined with a series of key-operated tumblers that are pivoted in the lock-frame, and

' have a rising and falling movement at their front ends, and which tumblers are made to lock the latching-bolt in engagement with the bolt-plate when the settingsbolt is forced in wardly thereby, substantially as described.

3. In a lock,a spring-actuated latchingbolt,

and a spring-actuated tumbler-setting bolt, having an independent movement of its own, and placed side by side with the latching-bolt, so that both will be operated by the latchingplate, combined with pivoted key-operated tumblers which are operated by the settingbolt, and means by which the tumblers are made to engage with the latching-bolt so as to lock it in positiomsubstantially as specified.

4. In alock, a spring-actuated latching-bolt provided with a stud or ward, and a springactur-ted tumbler-setting bolt, that is adapted to'havc both an independent movement of its own and a back-and-forth movement withithe latching-bolt, combined with a series of keyoperated tumblers, pivoted at their inner ends, and having recesses in their outer ends, and which tumblers are operated by the settingbolt, so as to lock the latching-bolt in engagement with the latching-plate when the settingbolt is forcedinward thereby, substantially as shown.

- 5. In a lock of the class described,a group of tumblers pivoted by one end and arranged side by side having longitudinally -slotted free ends, each-tumbler having a rectangular opening therein at the inner endof said slot,

and having recesses in the opposite edgesthereof, combined with asliding tumbler-setting bolt having studs extending across the opposite edges of said tumblers in proximity to the said recesses in the bordersthereof, said tumbler-setting bolt having an engagement with'the door-jamb when the lock is in proximity thereto, combined with a spring acting to move said tumbler-setting bolt outwardly of the lock-case, a main bolt having a ward thereon for entering all of said tumbler-slots simultaneously, and engaging with the border of said rectangular opening, when said main bolt is moved into the lock-case one or more springs acting to move said main bolt outwardly of the lock-case, and a lever connected with a knob outside of the lockcase, for drawing said last-named bolt into the lock-case, substantially as set forth.

6. In combination'the main bolt 3, having a stud l3, projecting from one edge thereof, combined with springs for moving said bolt outwardly of the lock-case, and the tumblersetting bolt B, having studs 6 thereon, one thereof having engagement with said stud 13, a spring acting to move said bolt B, outwardly of the case, and a lever operated from outside of the case and engaging with saidbolt 3, whereby the latter is drawninto the lock-case, substantially as set forth.

7. In combination the hollow shank 4, of the knob 5, having a lever thereon for operating the main bolt, and having the shoulders 6, 6, on said shank, combined with the tumblers, a key-guiding post extending through the key-openings in said tumblers, and entering said shank and having a longitudinal slot therein toreceive the key and the key having wards thereon for engaging the borders of said key-openings, and a projection for engaging one of said shoulders 6, 6, substantially as set forth.

8. The hollow shank 4, the knob 5, having lever B, thereon and the shoulders 6, 6, on said shank, combined with the key-guiding post J, entering said shank, and having a key-slot therein, the escuteheon-plate 19, having the screwed tubular part 20 thereon, and the key-guiding barrel 21, fitted thereinto,

the tube 18, having a screw engagement with cured thereto,and containing the key-guiding post J, a metal washer 16 surrounding said post, and intermediate of the lock and the door a tube 18, having a flange engagement by one end with said Washer and internally screwthreaded, the escutcheon-plate 19, having an externally-serew-threaded tube 20 fi xed thereon, and engaging with said tube 18- and the key-guiding barrel 21, fitted in said eseutcheon-piate, and ite connected tube 20, snb- 1ostantially as set forth.

In testimony whereof I afii'x my signature in presence of two witnesses.

CHARLES W. SQUIREM Witnesses: V

H. A. OHAPIN,

K. I. CLEMONS'.

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