US1057874A - Lock. - Google Patents

Description

www' f J. PALUH.

LOCK. APPLICATION FILED SEPT. 10, 1912.

1,057,874. Patented Apr. 1,1913.

2 SHEETS-SHEET 1. Tlcl. l.

MMM

J,l PALUH.

V LoGK.

APPLICATION FAILED SEPT. l0, 1912.

1,057,874. t l Patented Aprnl, 1913.

2 SHEETS-SHEET 2.

mgl

Wmv/angina l ml mw ,fff llllunmlmmagam sv v wif l, :I l

"mum f WMM/mona o UNITED STATES PATENT oEEioE.

:rosEPH PALUH, or GARFIELD, NEW JERSEY.

LOCK.

To all whom #may concern Be it known that I, JOSEPH PALUH, a citizen of lthe' United States, residing at Garfield, in the count-y of Bergen and State' -will in part be hereinafter set forth, and in part become apparent, the invention -comprises 'certain novel constructions, combinationsandarrangements of parts as herein specified and claimed.A

Inthe accompanying drawings: Figure 1 is a section ta i I en on the plane indicated by line 1-'1 ofl Fig. 3, part-s beneath the line .of the section being indicated in plan. Fig. 2 is a similar section on line 2-2 of Fig. 3. Fig. .3 isa vertical'section taken on the plane indicated by line 3--3 of Fig. 1. Fig. 4 is a horizontal section taken on the plane indicated by line 4 4 of Fig. 1. Fig.- 5 is a longitudinal section through a key 'forming a part of the present invention. Fig. 6 is a transverse section*therethrough taken on the plane indicatedb v line 6 6 of 5. Fig. 7 is a perspective view of a supplement-al key. v

/ Referring to the accompanying drawings i by numerals, 1 indicates a housing or casing'of a lock which. may jbe either of the rim or mort-isc type. Reciprocally mounted in casing 1 is the latch bolt 2 which has its forward portion projected through an aperture in the outer edge wall of the casing 1, and has its rear portion guided in a bracket 3, the, rear end of thel bolt 2 being pressed by a spring 4 in the direction tending to maintain the bolt in its outer or forward position. Along the intermediateportion of lthe bolt 2, the same is formed into a rack 5 which meshes with a gear 6 journaled on a shaft 7 which latter is fixed to a casing 1. A pawl 8 is pivo-ted to a casing 1 at one side of gear 6 and is'formed with a shoulder 8 adapted to engage teeth of gear 6 t-o lock the gear against rotation when t-he pawl is pressed toward the gear whereby the pressing of pawl'lS into locking engagement with Specification of Letters Patent. I

Application filed September 10, 19.12.i Serial No. 719,540.

gear 6 will lock the bolt 2 against reciprocationby virtue of the fact that the boltv may reciprocate only When'the gear 6 is freeto rotate in the course of meshing with the rack 5.

The casing 1 consists of the usual xed back plate 9carrying the surrounding edge plates and the usual detachable front plate 10. The plates 9 and 10 are apertured, as at ,11, 11, for ,the accommodation of the knob shaft 12 to theends of which are con'- nected the knobs 13 and 14. `lSurrounding the shaft 12, just inside of plate 10 is a sleeve 15 having tangential arms 16 and 17 extendingat oppositel sidesofthe end portion of pawl 8, so as to enable movement of the pawl to and from the locking relationwith gear 6 when the sleeve 15 is rotated for swinging arms 16 and 17 upwardly' and downwardly respectively., The sleeve 15 is shouldered circumferentially and the annular shoulder is disposed to bear against the inner face of plate 10. the outstanding portion of the sleeve extending into aperture 11 of plate 10 and constituting a clutchY member by virtue of being provided with Patented Apr. 1,1913.

clutch member receiving'recesses 1S. Knob 13 is formed with an inwardly extending sleeve surrounding the shaft 12 and provided at its inner end with inwardly extending clutch teeth 19 adapted at times to engage recesses 18 for actuating sleeve 15.' A spring 2O is disposed within the sleeve of the knob 13 in position to engage the end ot' shaft 12- and a portion of the knob for pressingl the engaged parts in opposite directions and thereby pressing the knob longitudinally away from the shaft. To accommodate relative longitudinal movement of the knob and its sleeve with respect to the shaft,

a set screw 21 is threaded through thc sleeve int-o engagement with a slot or elongated.l recess 22 wherebyv the parts may have relative longitudinal movement while the sha-ftwill rotate whenever the knob is turned.

Thus the knob is normally held with its elutchteeth 19 .out of engagement'with the recess 1S.

A sleeve 23 surrounds the shaft 12 and exl tends through plate 9, and' at its inner end carries a pinion; 221 which is disposed to mesh with a'rack 25. formed of a portion of "bolt, 2, whereby rotation of sleeve 28 is adapted to reciprocate bolt 2, and the bolt in turn will be held` against reciprocation 60 to 'release'the pawl 8, thebo'lt 2 is free to` by 'the pinion24lfwhen thelatter vis held against rotation. Extending inwardly from the pinion` 2d arefcluteh teeth 26 adapted,

at times, to engage clutchrecesses27 formed in the sleevell.' the parts'being normally' spaced aparty and lheld spaced .apart by 'a at'one end pressing yithe"exposed faceA of.' platej 9' .and the other, end pressing the 1 laterally extending studs' for, pro jections .29 formed, [preferably by the :,@nrlportions of.v a pinv passedfthrouglr the- `sleeve and throug'hthe shaft 12. lhus'thel shaft 'isheld Vagainst independent rotation yrelative to sleeve X23, and 'is alsof/held againstj longitudinal reciprocation i1 1depve nd+vv '25' A .of theY bolt. '23 beingcutaway to accomIno-r' yentf'thereof' asthe "spring 28 prevents the sleeve from having -m'ore'jthan limited move` h'nientin one d1rect1on,jand pinion post,

tively stopsthefsleeve against longitudinal movement i'nthe otherdirection.' .i The'pinion 24 and-rack 25 are 'Lof a thickness consider-- Pably'lessthll the thickness of the bolt 2`so th'atthe clutch'teeth'26 are normally spaced from the adjacent en d 'ot sleeve 15, material.

Vdate' free rotaryinovement of the pinion 24 'when lthe sameis moved. inwardly until the 3 0 Y' ,out of Avmeslnwith rack 25. vKnob 14 is clutch teeth26 engage recesses 27, the pinion vpassing in such movement4 beyond` and formedwith a sleeve similar .in construction and arrangement to `that of knob 13 hav1ng p the inwardly 'extending clutch teeth r,30 adapted toat ,times engage clutchrecesses 31 :insleeve 23. The shaftv12 extends into the sleeve of knob 14, and therein is formed with an annular elongated reduced portion 14-leaving a longitudinal and annular space/ 14 into whichextends a' boltlor pinl 32 'which extends through and engages the sleeve of knob 14the Apin 32 being of suffif ciently 'lessVl cross-sectional area than 'the' length of space l14" 'to' permit the requisite longitudinal, 4movement-of the` knob 14.

v Fixed to and-'extending' inwardly from'the inner face of plate is astop 33 interposed in the path of. swing of the arm 17 so as to limit the extent of possible rotary movement of sleeve 15, a plate spring 34 being also fixed to the inner face of plate 10 and curved y 4to have its flatfface pressed against the"at 'face of arm 17 end thereby damp the movement 'of the arm and connected parts for preventing 'rattling or accidental displacement thereof A pendant sto 35 extendsv fromtheinner face of plate 10 into the path of swing of pawl 8' and serves I4to limit the extent of movement thereof.Y

Y Inoperation,l when the sleeve 15 is .turned bereciprocated either by a direct rotation of knob 13 or by pressing the' knob 14: inwardly until clutch 'members 30v enga eclutch re- Gosses 31 .andithen rotatingkno 114. -When vit is vdesired to render diilieult the manipula tion of the ,parts pawl-S' is moved to the locking position, soasv to temporarily lock latch bolt 2 against reciprocation until p'awl is moved out, of its engagement. To accomplish this lbythe inner knob, or knob 13, it isvonly, necessary'to presthesaine inwardly 'until thefteeth26 engagefthe recess 27,. and'then rotate the knob 'for' swinging the arms 16v -and- `17=` downwardly, during vwhich rotary. movement sleeve' 23will bev rotated by v'vi'rtu'e of the rotation of shaft which' results in Pa simultaneous 'rotation of; thepinion. 2 4', and thus it will be seen that when the 13 is thrust inwardly, andk 12 audits connection withihe sleeve 23,

rotatedj contra-clockwise` as viewed `from' the inside the releasebf pawljS l'and .the inward thrustof'b'olt .2will beaccQmplshed "sim'ull.

ta'neous'ly; --Th'efwithdrawalfof bolt 2 by. the us'eotthe 'exterior knohlfi is, however, rendered more diiicult because of the various AIln'anipulation's of which .the lknob is capable andfthrough 'someof which 'it must be carriedfbeforethc desired'jend is. attained. IIf `99 the operatr'merelyjrotates. the knob, no re'- s'ultffollows," andfif,hefthruststhe knob inwardly yuntil the teeth'30 engagewith the re-4 by 1 virtue of the I,engagement of pinion' y24 with rack Iand/the engfngement of rack A5' with v.the pinion 6, which latter piniony is" being held against rotation by the pawl` 8.

The next `possible operation is the further thrust of the. knob 14 inwardly,whereupon' the pinion 24will`b'e moved past the rack Ce'sses -3 '1 ,fand then undertakesto 'rotate the. w i flinob,' .he willv findit held against-movement 25l and theclutch teeth 2 61wi1l be brought vinto ,engagement with Yrecesses 27 If the operator understandslthe-construction of the .parts, he will know-that whenever they aslsume-thisposition, it is only necessary to.

rotate the knob to releasethelockfor latch 4bolt 2, but tol one unfamiliar-with the lock,

rotation of the 'knob yatthispointiwill apparently afford, no results as "the operator must, before 'eiectingfmovementof the boltr 2, permlt the knob 14 to return outwardly a distance suicient toenable the gear 24 to-l mesh with rack 25but must not permit the rod to `x'nove outwardly suiiiciently vto allow the teethBQto escape from recesses 31, for if the latter shouldfocciir,f,-rotation offfthe vknob will effect no results, To oneex erin enced withthe lock, the kretention o the teeth 30. in enga ement'vwithrec'esses 31, and

rotation ofl the" ob withthe parts in thisposition' will; efect the desired inward thrust fica mediate cam portion 44, and a preferablyx ying 1 and retaining the loop 47 under spring tension in engagement with the bolt 41. The spring 45 also extends beyond the loop 47 and is inclosed by the bifurcated end of a yoke 48 which spans the bolt 41 and has its upper end port-ion apertured to receive a pin l 49 carried by pawl 50, the pawl being pivotally connected to the plate 9 as at 51. The

formed in the rear edge p pin-and aperture connection between yoke 48 and pawl 50 affords a pivotal engagement subjecting the pawl to the spring pressure of spring 45 which being exerted in an upward direction on yoke 48 presses the forward end of the pawl downwardly, the yoke engaging the pawl at a point in the rear of the pivot. The bolt 41 is formed with notches '52. adapted to receive the pawl 50 at the respective termini of longitudinal movement of bolt 41 whereby the bolt is designed to be retained in either of its projected or retracted positions until forcibly shifted, the pawl acting on the upward portion of the bolt, and the spring on the lower portion thereof to this end. Bolt 41 is also formed with a. series of notches 53 for receiving the actuating key bit which, during rotation of the key is adapted to engage any one of the recesses and project or retract bolt 41.

As a precaution against employment of skeleton or other spurious keys, I provide a special ke v for use with the`piesent improved lock which-avoidsthe necessity for forming a bit accommodating notch as a part of the keyhole, the key hole in the present lock being formed circular as clearly seen at 55, a hole being formed in each of plates 9 and 10, and the two holes being disposed in alinenient. vAs a further guard against introduction of a key by an unauthorized person I provide a tab 56 pivoted to the inner face of plate 10 ina position to swing to and from a position extending aercss the keyhole 55. F or facilitating the operation of the tab 56` the material constituting 'the saine extends beyond the pivot and terminates 1n a bifurcated end 57 which is adapted in operation to be engaged by a supplemental key 58 consisting of a handle 5S and a shank 58,fthe latter being adapted to be directed through a key hole 59 ate of the housing 1 in position to enable the shank 58 to be thrust into the housing or casing 1 and into the space between the arms or bifurcations 57.. A slight lateral movement of the shank .58 after having its inner end positioned in saidbifurcation will serve to throw the tab 56A across the keyhole or to move it away from the keyhole as desired. The keyhole 59 is preferablydisposed slightly at one side ofthe lineof bolt 41 so as to be in line with, the opening between the-yoke 48 and thebolt 41 so that the shank 58T may be extended through the keyhole 59 longitudinally of the bolt 41, and one face of shank 58 is tending lug60 adapted at times to enter a recess 61, in bolt 41. Thus the shank 58" may be thrust .through keyhole 59 and along' bolt 41 until lug 60 drops into recess 6l, and the bolt 41 may then be drawn or thrust longitudinallyby a longitudinal shiftingof the key 58. Obviously the keyhole 59 and key 58 and coperativeyparts will be useful only in rim locks or locks disposed to have their rear edge accessible. Y j To operate the present .improved lock whose casing is provided with a circular keyhole, I employ a key of particular con-.

struction, especially. designed for use .with

such keyhole, said key consisting of a shankr comprising a hollow cylinder 62 liaiving a lateral aperture 63 vadjacent its inner end and having an annular flange or shoulder64 adjacentand outside of the aperture v65%. The

substantiallyv outer portion of the cylinder or sleeve 62 is slotted as at 65 and the outer end of the cylinder extends int-o a tubular plunger head 66. Fixed to the said head is a shaft or rod 67 which is-connected to the head at the outer end thereof. and extends thence inwardlyv` within the sleeve 62. To the inner end of the rod 67 ispivoted a link 68 which carries at its outer endapivotally connected said aperture being suiiiciently elongated for accomniodatingv lateral swinging of the links, so that the links may be moved to a position projecting laterally from the sleeve and.l

:loo

'link69, the two links being .thus free to be i directed outwardly lthrough the aperture 63 i'io forming a key bit from a position lying 4 within and longitudinally vof the sleeve. The sleeve62 has its inner end closed, that isto say. the cylinder constituting sleeve 62 is solid from the inner end of the vaperture 63,

so that in operation when t-heplunger head l 66 is moved inwardly and thus moves the plunger rod 67 inwardly, ,the links 69 and 68 will come successively into .contact with the slid'wall at the innerv end of the sleeve-and will be caused to be turned outwardly therev by, the free end of link 69 beingbeveled as at 69 and the endof link 68 to whichlink 69 is pivoted being correspondingly beveled or -rounded off as' at 68 which rounded surfaces effect'the camining of the link to the lateral p osition wheny the same are projected longitudinally against the solid Wall at the .50650, as j-uststat'e 651 ae-knob shaft attending through terminus of. tlie sleeve., In drawing the links l68 and 69 from the position forming a bit,

l luo or pin 70 extends outwardly -from the l@ plmgershaft 67 through slot 65 for .guiding said plungershaft in its-reciprocal'move ment and preventing rotary movementA thereofindependently of'fthe cylinder or sleeve 62. lIn operation, the'links 68 and 69 belingwithinjthe cylinder-162the inner' end j of the cvlinder 'is extended through one of Vthe apertures and is passed inwardly until the flange or shoulder 64" comes. in ccn tactivvith the respective plate 9er 10, whereupon further inward movement of the sleeve is pr event ed,'and the plungenvvill then move inwardly' with the further inward movement` of the 'plungerheach with the resultant projection ofr the link s to form a key bit which will extendintoone of the notches 52l and thus enable'projection or retraction of the` Obviously While the bit formed 'oflinks 68 and69 is' illustrated as havingjbut `a sinv 'byvariation in the Width of the lin bifurcation thereof and` otherwise notching and shaping the' same, alv'vays conning the ormations to such, degree as'enables the pro-v ]ection andA retractionv of the links relative to the sleeve.

It will be observed that the free end of the spring While eiiecting'the action of yoke 48 and pawl 50 as stated, will in a pavvl 50, for when' the 'freeend of the pawl strikes the lbase of the respective notch 52 Athe-tree end of the spring 45 Will be prevented from any further approach toward \hejbolt.41. Thus as .the loop 4 7 is seating itself in either one of the recesses 43 the inward travel, of the ,link will be cushioned and limited by'the'control of` the freeend of the springth'roigh the influence of the pavvl Thus the loop. 57 cannot take its 'seat with" a v snap or sudden move,` Jment but the final seating-of the loop will be cushioned.

vHaving thus described the invention, what 5 5 is claimed is:

1. In a-lock, the combination with a casfing, of a latch bolt reci rocally mounted vtherein and having a rac la pinion 'meshlngswith said rack, a pawl pivoted to swine,r 60 to and from a position contiguous to said pinion and having a shoulder' adapted to engage the teethfof the pinion for locking the pinion against movement;` and thereby lockingthe latcihbolt against reciprocation,

t e casing,

:sleeve a distance suiiicient to cause the pin.- -ionto leave its meshv With thc'rack.- f

glefvvard,v additional vvards lmay be rovided -sense be controlledby the position ofthev a sleeve journaled on the knob sha-it, projections vextending Jfrom the sleeve in position for engaging oppositesides of thepaxvl andadapted to swing the pawl to'and from a locking position relative tothe pinion when the sleeve is actuated, means for ac-' tuating the* sleeve, and means coperating therewith lfor reciprocating the latch bolt. I

2. In aA lock, the combination with a cas# ing, of .a latch bolt reciprocal ly mounted therein andfhaving agrack, a pinion-'meshing Ywith said rack,` a knob shaft connected with the pinion and adapted to'rotate the same forfr'eciprocating the latch b olt, means for-.

locking the latch bolt against 'reciprocation, 'asleeve journaled onIthe knob shaft `and vspaced fromthe pinion, means 'carried by,

the sleeve Yforactuating thelatch bolt, locking means for effecting release thereof, said pinion beingmovably mounted and adapted` to move Atoward and away from `the sleeve, anda clutch connection for the pinion sleeve adapted to assume effective clutch relation when the'pinion has been shifted'toivard the l3. In a lock, the combination with a casing, ot a latch bolt reciprocally mounted therein, a catch adaptedtodock the latch' bolt again-st reciprocation, means for 'releasing the catch, a sleeve journaled in the 'cas ceA ing, a pinion carried by the sleeve", a rack on the latch bolt. meshingwith' the pinion, a spring pressing the pinion to a position meshing with the rack, and means for--sliifting the sleeve andpinion Jfor moving the pinion out of mesh `With the rack and inposition for actuating lthe catch yreleasing E: Y

means. 4. In' a lock, vthe combination with a cas ing, of a latch bolt reciprocally mounted thereinand having a rack, a pinion meshing with the rack and shiftable bodily to and 5. In a lock, the l:ombination with a casfrom a-pos'ition in engagementvvith the rack,

ing, of a latch bolt reciprocally mounted therein. means for 'reciprocating the bolt, means for locking the bolt against reciprocation,means :tor releasing the lock, knobs atopposite sides of the casingl mounted to rotate and to shift toward and from the casing,

andmeans connected withfeach of the knobs ing ratchet notches at one edge and spaced recesses at' the opposite edge, a spring fixed within the casing and bent to Contact With said bolt under spring pressure, said spring 'being .formed Withian open loop adapted to extend into the respective recesses according to the4 positin of the bolt, a pav'vl pivotall'y mounted in the casing and adapted to engage the ratchet notches lof the bolt, and a' yoke engaging a free portion of the spring vand extending acrossl the bolt and pivotally engaging the paWl in the A'rear of its pivot fory maintaining -the same in contact with vthe -respective ratchet notches under springA pressure vvhile the loop of the spring is 'with- -in one of the recesses.

. 7, In a lock, the combination with a cas- 'i ng, of a lslidably mounted bolt therein havi' lng ratchet notches at 'one edge and spaced recesses at the opposite edge, a spring fixed within the casing and bent to contact with said bolt under spring pressure, said spring n K being formed with an open loop adapted to extend into the respective recesses according .to the position of the' bolt, a pawl pivotally the casing being formed with'a keyhole sub- 40` stantially in line With the bolt, ,the bolt be` ing formed with a recess in its side face, and a key having a; shank adapted to-be passed through the keyhole and being formed with a lug adaptedl to b e seated'in .the recess in A45 l the side face of .the-bolt' to enable"manual longitudinal thrust; of the bolt by a similar movement ofthe key. y

In testimony whereof I aiflx mysignature in presencev of two Witnesses.

JOSEPH PALUH.

Witnesses:

H. I-I. RUST, DOROTHY Snnrl.v

v(lolitas of thisv patent may be obtained for ve cents each, by addressing the Commissioner of Patents, A Washington, D. C.

Images