US1499444A - Safety spring barrel applicable to locks or any key-locking system - Google Patents

Description

MQMM

July ll 1924b.

P. G. CAILLOIS SAFETY SPRING BARREL APPLICABLE TO LOCKS OR ANY KEY LOCKING SYSTEM Filed Jan. 4.- 1923 MW 246 545 M7 PIERRE GUST AVE CAILLOIS, OF PARIS, FRANCE.

SAFETY srnine BARREL APPLICABLE ro LOCKS on ANY KnY- ooKIive svs'rrnn.

" hpplicationnled January 4, 1923-. Serial no. 610,680.

To all whom it may concern:

Beit known that I, PLERRE GUsrAvn GAIL- Lois, a citizen of the French Republic, residing at 12 Avenue Victor Hugo, Paris, France, have invented certain new and useful Improvements in a Safety Spring Barrel Applicable to Locks or Any Key-Lock,

ing, System, of which, the following is a specification.- p p The present. invention relates to a safety spring barrel, applicable to looks; or keylocking systems of any type.

This device is characterized by dom ofthepartswhen the spring'is at. rest and the complete locking ofthese parts as soon as the inserted key pushes the central memberarranged in the axis of the barrel andone of the ends of which engages with the .inechanism of the locks. This central member is connected to bolt-bars radially arranged and longitudinally guided .in the grooves of a rotating ring, by means of balls which combine, on the one hand, with inclines of suitable profile provided in the bolt-barsuand, ion the other hand, with grooveszor recesses. provided in the shank of the key the translation of which withthe central member it actuates according to the axis ofthe barrel, determines, owing. to the respective. profiles of the inclines, to the depth of. the grooves or recesses and to the diameter ofthe balls, unegualmovements, of the balls, for eachv of the bolt-bars brought simultaneously in final position for which the central member which engages with the mechanism of the lock can be angularly disp a i The unequal movements of the balls dis placedfor one and the same longitudinal translation of the central member of the 1 barrelyare determined by the respective profiles ofthe inclines provided in the bolt-bars, the diameter of the balls and the depth 01 the grooves. The relative positions of these various elements and their respective shapes or dimensions constituting a number of variables. permitting the putting on the market an unlimited number of safety barrels without any one key being able to operate two combinations. K

The'accompanying. drawing illustrates, by wayof example, a form of construction of a safety barrel made in accordance with the present invention.

Fig.1 is a horizontal section of the barrel. according to a: plane containing its lon'g1- the freetudinal axis; all the safety members being in I locking position.

Fig.2 is a view similar to the. I

one, but in the case where the ,safetymem L here are in unlocking position.

All the parts of th-esafety mechanism are enclosed within the hollow body 1 which is secured by its base 2 on the caseof the lock ,,f

fin any, suitable manner- The. key; pipe 3"is formed of a cylindrical member guided at its) upper end in a central bearing in the top and at its other end in a bearing provided at l v the center of a cover late 5 centeredinthe,

inner bearing of the ange 6 and secured as well as the crown 7 on the base 2, bymeans of screws or preferably of rivets. The,

crown 7 is provided at its inner end with" a seat 8. on which bears a compression spring 9 the other end of whichjacts.

on the upper seat of a ring 10. In the?- radial grooves of this ring are arranged lllllS-z. trated,"the ring 10 and the central member; 3 form asingle part and the safety device bolt-bars 11. In. the example.

has only two diametrically opposed boltbars. The compression springs .12 act between the lower face of notches l provided in the bars 11 and the seat 14 on the member .3 which forms the hub of the ring. The bars clines v17 provided at various pointsof the bars 11. The operating key 18 engages in o the central bore of the member 3 and a square part 18 of its end entering in the mortice 19 causes the key and ring to rotate together.

The depth of the grooves formed on the shank of the key opposite the balls 15 de termines the extreme positionof the balls relatively to the longitudinaleaxis of-the barrel. If the key 18 is acted upon for displacing the ring in translation in the direc tion of the arrow (Fig. 2), the balls 15 slideon the inclines 17 until the position of.

their point of contact with these latter is such that these balls are wedged betweenthe incline and the groove provided inthe key;

in this position, the bar and the ring are integral. as far as the translation is concerned.

It will be understood that according ,to the' profile of the inclines, the/diameterof the T balls, the, depth", of, thegrooves; of the key, and the distance separating the balls on-"the length of this key, the bars have for one and the same translation, of, the ring, their own translations which are different, not only in value, but the origins of which are displaced in the time. I These respective translations of the bars are "determined so' that, the endQO ,being at the end of its stroke and engaging with the mechanism of the l ock,the notches 21 of the bars areoppos ethes at Q2JasS d n he tire'blockconstitutedfby the parts within the body l can then be subjected to the 'an-- gular placemenrwhicu actuates the mechanis' ofith'e' lock. ",Wlien the ring moves tab-kw its initial position, the springs 9 and "12f factfor,{br'ingin back the mechanism of the spiingldevice 1n the position shown in Fig'i-lf I" I What Iclaim as inyinvention and desire tofsecuieflby Letters Patent is:

n. r, ca l' itl blefif receiving"longitudinal and ani a displacem nts about itsfaxis and new: ing a central bore for receiving ajkeythereball intoj the barrel,nieans on the key for a-ngu larlyidis'placing said key pe, a pluralityor' balls, the of the key p1pe having orificesjfthereini serving 'asyhous'ings for the s'" "andf me'ans" for'independently' pushing Whe" the lat ter 'isi longitudinally displaced.

astray" pipe mt-o thebar'rel, aiectangular for causing the bars to rotate toto v 4 2-4 ,In' a safety spring valve for locks, 21-

key -.pipe, springs interposed between the key pipe rotatablyj and longitudinally slidabl; in the valve andhaying l'a central bore andafreeess' therein for receivinga key to permit o f th'e. pushin back ofthe key pipe into the barrel, 'a rectangular extension on "the" keyengageable' in fthe recefss for 'facili-i' tatin g the rotation of the key pipe, the 'yvalls of "the "key" pipe having orifices "therein, a

pluralityof' balls housed in-the orifices of saidkeypipe, a, plurality ,of longitudinal "bar's "provided with inclinedpo rtions 'f'o'rj 00 operating vvith' the balls, a ring capable of sliding in the barrel and provided with a Ina safety springlbarrel for locks, the 'eni lt' the barrel of a key "pipe "21" n3; safety springtarrel' for locks, a keyfpipeqrotatably andslidably mounted in thefbariel and havinga central bore and a rectan'gularfrecess forrec'eiving a notched key; therein to permit 'ofth pushing baekjof annular ledge fixed in theba'r-r'el an ,seriesof longitudinal greoves for guiding "the bars, the bars being movable independently of each other, a flange on the key pipe, resilient means interposed between the bars and the flange on the key pipe, and means for disengagingv the. bars in order, to rotate the key pipe and the ring.

4. In a safety spring barrel for locks, the arrangement in the barrel of a key pipe capable of receiving longitudinal and angular displacements "about its axis and provided with 'a i'ec'essfor receiving a notched key to permit of the pushing back of the key pipe into the'bar'rel, a"rectangular extension on the key engaged in the recess for eifecting rotation" of: the key pipe,the wall of th'ejkey pipe being provided with orifices, a plurality of balls housed in the orifices and cooperating With the notched key, a plurality of longitudinal bar's provided with inclined 'portions for cooperating with the balls, a ring capable of sliding in the barreland provided with longitudinal grooves for guiding the bars, the bars being movable independently of each other, a -flange on the key pipe,

springs interposed between the lower endsof the bars and the flange on the key pipe,

'an annular'ledge on the barrel provided with grooves to permit ofth'e' longitudinal'displacementof the bars, and'ithe bars beingprovided with openings for cooperating with said ledge, substantially as and the purc poses setforth. thefballsaeward'theaxis of" the key] pipe 5JIn a safety spring barrel for locks, the

arrangemen t-in-the' barrel of a key "pi ecapable "of receiving longitudinal displacements and angular displacementsabout its axis provided with a central bore and a recess, a notc'hed key having a rectangularextension fitting 111 the bore and'eng'a'g'ing the recess for sliding the key pipe 'inwardlyand for vrotating the, same, the walls' of thekey pipe being provided with" orifices, "balls housedin said orifices forcooper'atingwith .tlie notched'k'ey, 'a plurality o'f longitudinal bars provided with inclined portions for'cooperating with the balls, ar'ing capable of sliding in the barrel and provided with longitudinalgrooves for ensuring of the'guiding of the'bars, the bars being movableindependently of'each' other, a flange onjthe resilientineans interposed between the ring andthe annular ledge;

6. In a safety spring barrel for locks, the arrangement of the barrel of a key pipe capable' of receiving longitudinal displace ments and angular displacements about its axis and provided with a central bore and a recess, a notched key insertable in the bore of the key pipe and having a rectangular extension engaging the recess to facilitate the inward sliding and rotation of the key pipe, the walls of the key pipe being provided with orifices, a plurality of balls housed by said orifices, a ring capable of sliding in the barrel and provided with a plurality. of longitudinal grooves, a plurality of independently movable longitudinal bars guided by the grooves in the ring and provided with inclined portions for cooperating with the balls, a flange on the key pipe, springs interposedbetween the lower ends of the bars and the flange, an annular ledge fixed in the barrel and provided with grooves for guiding the bars, the bars being also provided with notches for straddling the ledge for determining the longitudinal displacements of the bars depending on the depth of the notches of the key and on the relative positions of said notches so that the engagement of'any notches of the bars with the said annular ledge permits the turning of the ring and key pipe about their common axis for actuatingthe lock.

In testimony whereof I have signed my name to this specification.

PIERRE GUSTAVE CAILLOIS.

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