US711040A

US711040A - Lock.

Info

Publication number: US711040A
Authority: US
Inventors: Giuseppe De Cesare
Original assignee: GIUSEPPE TUOTI
Current assignee: GIUSEPPE TUOTI
Priority date: 1901-12-31
Filing date: 1901-12-31
Publication date: 1902-10-14
Anticipated expiration: 1919-10-14

Description

No. 7l|,040. Patented Oct. I4, |902.

G. DE CESARE.

LUCK.

(Application led Dec. 31, 1901.) (No Nudel.) 4 Sheets-Sheet l` Patented Oct. I4, |902. G. DE CESARE. l

No. 71|,04o.

L0 C K.

(Application led Dec. 31, 1901.)

4 Sheets-Shack 2` (No Model.)

Tij: NDRmS FEYERS C0. PHOYQTHO.. WASHINGON. D4 C.

No. 711,040. Patented Oct. I4, |902.

G. DE CESARE.

LOCK.

(Application filed Dec. 31, 1901.)

(No Model.) 4 Sheets-Sheet 3.

of 6, I

c Nonm nuns ou, Pnormuwo.. wAsHmmuN n r,

Patented Oct. i4, |902.

G. DE CESARE.

No. 7ll.040y

LOCK.

(Application led Dec. 31, 1901.)

4 Sheets-Sheet 4,

(No Model.)

Inversion e; me

Clim

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UNITED STATES PATENT OEEIcE.

GIUSEPPE DE CESARE, OF NEV YORK, N. Y., ASSIGNOR OF ONE-HALF TO GIUSEPPE TUOTI, OF NEWv YORK, N. Y.

LOCK.

SPECIFICATION forming part of Letters Patent No. 711,040, dated October 14, 1902.

Application led Deoember'Sl, 1901. Serial No. 87,886. (No model.)

To all whom t may concern: parts carried thereby, this View representing Be it known that I, GIUSEPPE DE CESARE, the lock-plate as if it had been turned down a citizen of the United States, residing in the from the lock-case shown in Fig. 5. Fig. 7 borough of Manhattan, city of New York, is a View in vertical section on the plane in- 55 State of New York, have invented certain dicated bythe line 77 of Figs. 2 and 4. Fig.

new and useful Improvements in Locks, of 8 is a detail view in section on the plane inwhich the following is a specification, referdicated by the line 8 8 of Figs. 4 and 5. ence being had to the accompanying draw- In the embodiment of the invention repreings, forming a part hereof. sented in the drawings the lock-case A is 6o 1o The objects of this invention are to increase represented as a rectangular case of suit-able the strength and the certainty of action of the depth to receive the mechanism of the lock. bolt mechanism,to provide safeguards against The lock-plate B is fitted' within the wall of tampering with the lock in any way, to prothe case and is held therein by screws l),which vide for the indication of sufficient movement preferably enter the door or other part to 6l. of the bolt in either direction, and generally which the lock may be applied, as represented to improve the construction of locks of the in Fig. 2. In order that the unauthorized regeneral class to which the invention relates. moval of the lock by withdrawing the screws The several features of improvement will l) may be prevented, the heads of the screws be fully described hereinafter with reference are concealed by the cover-plate b', which is 7o 2o to the accompanying drawings, in which for slipped over the lock-plate B, its edges enthe purposes of illustration and explanation tering undercut grooves a, formed in the of the mechanism of the invention such feawalls of the case, as clearly shown in Figs. 2 tures of importance are represented as em-l and 7. The cover-plate in turn is held from bodied in a convenient and practical form. withdrawal by the spindle O of the latch-bolt, 75 It will be obvious as this description prowhich passes through the lock from side to ceeds that some of the features of improveside, having fixed upon one endthereof the ment are capable of use in other forms of knob c and having connected therewith on locks than that shown in the drawings and the other end the knob c'. The bolt-socket D are also capable of use independently of one is likewise secured to the jamb of the door or 8o 3o another. other corresponding part in such a manner In the drawings, Figure l is a View in eleas to prevent its unauthorized removal. For vation of the portion of the door and doorthis purpose it is preferably formed as an injamb to which the lock is applied, showing tegral casting, except as hereinafter menthe handle of the latch-bolt and the key-plate, tioned, and is provided with an undercut edge 8 5' the outline of the lock-case and of the boltl to engage with a corresponding undercut socket being indicated by dotted lines. Fig. edge e of the socket-plate E, the latter being 2 is aview of the lock and bolt-socket as seen secured to the jamb of the door or other corfrom above in Fig. l, the door and door-jamb responding part by screws e' before the boltbeing shown in section and portions of the socket is slipped into engagement therewith, 9o 4o lock-case and bolt-socket being broken out which is done when the door is open. The to show details of construction. Fig. 3 is a heads of the screws e' are thus covered by the view in elevation from the side opposite to bolt-socket, so that they are not accessible that shown in Fig. l, a portion of the lock when the door is closed and locked. To pei'- cover-plate and of the bolt-socket being mit the placing ofthe bolt-head and other 95 p broken out. Fig. 4 is a view in vertical secparts contained within the bolt-socket, a section on the plane indicated by the line 4 4 of tion d of the socket-wall is made removable, Fig. 2. Fig. 5 is a-view in elevation of the its ends being beveled to fit the corresponding lock-case with the parts carried thereby, the edges of the wall, as shown clearly in Fig. 4. lock-plate being removed and part of the cir This removable section is slipped in place beioo 5o cular flange being broken away. Fig. 6 is a fore the socket is applied to the socket-plate,y view in elevation of the lock-plate with the its upper edge engaging the outer wall of the socket, while its lower edge is protected by the fiange of the socket-plate E.

The keyhole through the door or other corresponding part is provided with a metallining G, havingatits innerend a flange g,which is covered by a lock-case, thus holding the lining securely in position. The escutcheon H is secured to the keyhole-lining by revoluble studs h, each of which has at its inner end a lug h to engage a corresponding notch in the end of the keyhole-lining G. One of these removable studs may be made the pivot of the keyhole-cover h2, while the other may 'be formed at its outer end for engagement of a spanner, as clearly indicated in Figs. l and 7. Y

The bolt mechanism, which will now be described, is shown in Figs. a, 5, 6, 7, and 8. A circular ange I is preferably formed integral with the lock-case, concentric with the eye of the keyhole, having at a suitable point therein one or more slots or notches t'. A pin K is secured to the lock-plate B, concentric with the ange I, to enter the hollow end of the key L (shown in Fig. 7) in the usual inanner to center and steady the same, the pin having secured thereto suitable wards la to coperate with the clefts of the key. A worin- Wheel M or drum having a worm formed on its outer peripheryis mounted rotatably upon the pin K, having lugs or a notched `ring formed thereon, as indicated at m in Fig. 6, for engagement with the web of the key, so that said Worm-Wheel ordrum can be rotated by means of a key When the latter is properly inserted. Pivoted within the flange I are the tumblers N, carrying cams 'n2 for engagement with a key, and which are preferably held in normal position by a spring n, the lug n of each tumbler passing through the slot or notch t' in the Iixed ange I int-o engagement with a notch m', formed in the drum or worm-Wheel M, so that such drum or Worm-wheel cannot be rotated until the tumblers have been operated by the proper key to release the same.

The worm-Wheel M engages the long gearteeth o of the longitudinally movable and rotatable boltO,whichisthreaded,as at 0,foren gagement with a fixed nut 02, carried by the lock-case. The rear end o3 of the bolt O is supported in a suitable bearing and may be threaded therein, as represented in Figs. 4 and 6. Within the bolt-socket is mounted a bolt-head P, Which is interiorly threaded, as at p, for engagement with the threaded end of the bolt O when it is projected, the bolthead being held from rotation by any suitable means, as by having its shank polygonal in cross-section to fit in a corresponding aperture formed in the front wall of the boltsocket. A spring p' may be applied to the shank bolt-head, thrusting against a shoulder p2 thereon, to press the bolt-head back into the socket, so that its shank shall not project beyond the front wall of the socket when the door is open. It will be understood that when the drum or worm-Wheel is rotated in the manner already described the bolt O will also be rotated and by means of its threaded engagement with the lock-case will at the same time be advanced, so that the bolt will enter and engage the bolt-head, thereby locking the door. At the same time the bolt-head will be drawn outward until it impinges closely upon the lock-case, thereby making it impossible to reach the bolt itself with any implement.

Means are provided for indicating when the bolt has been moved sufficiently in either direction. As shown in Figs. 4 and 6, such means comprise a gong Q, supported within the lock-case, two hammers R being suitably supported in the lock-case to cooperate with the gong, the tail of each hammer projecting into the path of a corresponding lug lr, carried with the bolt O in its longitudinal movement. The lugs rare formed, preferably, on a ring lr', which is hung loosely on the end of a bolt O, the Weight of the lugs causing the ring to stand always in the proper position, so that the lugs shall strike the tails of the hammers. It will be observed by reference to Fig. 4 that the tails of the hammers are diderently disposed, so that one hammer shall be operated as the bolt reaches the limit of its forward movement and the other as the bolt reaches the limit of its rearward move ment.

The mode of operation of the locking mechanism has been already described sufficiently and will require no,further explanation here. It will now be obvious that various changes in the form and construction of the various parts of the improved lock may be made without departing from the spirit of the invention and also that some of the features of improvement described herein are capable of use independently of the other features.

I claim as my inventionl. In a lock, the combination of a screwthreaded bolt having longitudinal grooves forming long gear-teeth thereon, a fixed nut for said bolt, and a key-operated Worm-wheel operatively engaging said gear-teeth to rotate said bolt while permitting longitudinal movement thereof, substantially as described.

2. In a lock, the combination of a screwthreaded bolt, means to rotate and advance said bolt, a bolt-socket, and a bolt-head having an interiorly-threaded shank to be engaged by said bolt, substantially as described.

In a lock, the combination of a screwthreaded bolt, means to rotate and advance the same, a bolt-socket, a bolt-head having an interiorly-threaded shank to be engaged by said bolt, and a spring to press said bolt-head normally into the socket, substantially as described.

4. In a lock, the combination of a screwthreaded bolt having longitudinal grooves forming long gear-teeth thereon, a key-oper- IOO IIO

ated worm-Wheel engaging said gear-teeth,

and tumblers engaging said Worm-Wheel to prevent rotation thereof.

5. In a lock, the combination of a bolt, a key-operated drum in engagement with said bolt, and tumblers pivoted Within and en gaging said drum to prevent rotation thereof, substantially as described.

In a lock, the combination of a case, a bolt, a key-operated drum in operative engagement With said bolt, a circular flange fixed upon the case and inclosed by said drum, and tumblers pivoted upon said flange and engaging said dru 1n to prevent rotation thereof, substantially as described.

7. In alock, the combination of a case having a Xed nut, a screw-threaded bolt engaging said nut and having long gear-teeth, a keyoperated Worm Wheel engaging said gearteeth, and tumblers engaging said Worm- Wheel to prevent rotation thereof, substantially as described.

8. In a lock, the combination of a case having a fixed nut, a screw-threaded bolt engaging said nut and havinglong gear-teeth, a keyoperated Worm Wheel engaging said gearteeth, a circular flange fixed on the case, and tuinblers pivoted on said flange and engaging said Worin-Wheel to prevent rotation thereof, substantially as described.

9. The combination With alock-case, a lockplate, fastening devices passing throu gh the plate and case, and a cover-plate engaging the case and covering the fastening devices, of a circular Iiange fixed upon the case, a bolt, a key-operated drum in operative engagement With said bolt and inclosing said fiange, and a tumbler pivoted upon said fiange and engaging said drum to prevent rotation thereof, substantially as described.

IO. The combination with alock-case, a circular flange fixed upon said case, a bolt, a

key-operated drum in operative engagement with said bolt and inclosing said ange, and tumblers pivoted on said flange and engaging said drum to prevent rotation thereof, of a keyhole-lining having at one end a flange to be covered by the lock, an escutcheon, a removable stud carried by said escutcheon, and a lug to engage a slot formed in the keyholelining, substantially as described.

ll. In a lock, the combination of a case, a bolt, a key-operated drum in operative engagement with said bolt, a circular ange fixed upon said case and inclosed by said drum, and a tumbler pivoted upon said flange and carrying a lug, said drum having a notch which is engaged by said lug to prevent the rotation of the drum, substantially as described.

l2. In a lock, the combination of a case, a bolt, a key-operated drum in operative engagement with said bolt, a circular flange fixed on said case and inclosed by said drum, and a tumbler pivoted upon said fiange and carrying a lug and a cam adapted to be operatively engaged by a key, said drum having a notch which is engaged by said lug to prevent the rotation of the drum until the cam is operatively engaged by the key to cause said lug to release the drum, substantially as described.

13. In a lock, the combination of a case, a bolt, a drum in operative engagement With said bolt and provided With a lug for engagement With a key, a circular flange fixed upon the case and inclosed by said drum, and tumblers pivoted upon said flange and engaging said drum to prevent rotation thereof, substantially as described.

This specification signed and witnessed this 23d day of December, A. D. 1901.

GIUSEPPE DE CESARE.

In presence of- ANTHONY N. JESBERA, Lucius E. VARNEY.