US873481A - Lock. - Google Patents

Description

PATENTED DEC. 10-, 1907. F. s. ALIANO. LOOK APPLICATION IILED'NOV. 29, 1906.

I Inventor Ma i W a by ,LAtt q FRANK s. ALIANO, or NEW YORK, N. Y.

LocK.

- Specification of Letters Patent.

Patented Dec. 10, 1907.'

Application filed November 29. 1905. Serial No. 289,547.

particularly to a class of trunk locks employing a swinging hasp.

The main object of the invention is to provide a lock of this character wherein the.

operative parts will be compactly arranged and of a design and construction which will permit of the production of the lock cheaply without sacrificing its strength and durability.

A further object is to provide a lock em ploying a rotary bolt controlling plate which will inclosc the bolts and be supported from the bottom of the cup.

A further object is to providein a look a bolt controlling plate which may be stamped from and formed. of a single thickness of sheet metal, and'yet provide a suitable key seat by' means of which the key will be supported free of the bolts and form shoulders to permit the key to rotate or actuate said plate.

A still further object is to provide a lock, the cup of which and the bolt mechanism, will permit of the use of a lock or socket plate capable of beingapplied to the face of thetrunk or chest, or the cover therefor,

without boring or cutting an opening therein to receive the lock cup and permit the projection of the bolts beneath said plate.

A still further object is to provide in a lock, a tumbler and tumbler mechanism, which will be so constructed as to give alarge range of safety combinations in a small space, thus permitting the use of a lock cup of a small uniform diameter throughout.

A still further object is to provide a bolt and a rotary controlling plate mechanism which will prevent any lateral displacement of the bolts. And a still further object is to provide a look wherein the cooperating parts of the bolt or bolts and the rotary plate will be so formed as to cause a sullicient throw of the bolt or bolts with a comparatively small quantity of rotation of the plate.

The invention consists primarily in a lock' comprising a on having a bolt opening therein, a sliding bo t seated in said cup and projecting throu h said opening having a shank provided wifli a laterally projected abutment, 2. guide for said shank, a rotary plate carrying a pendent stud adapted to engage said abutment on said bolt, key controlled means whereby said plate may-be actuated,

a support for said cup, and a lock or socket plate; and in such other novel features of construction and combination of parts as are hereinafter set forth and described and more particularly pointed out in the claims hereto appended.

Referring to the drawings: Figure 1 is a longitudinal section of the hasp and the lock or socket plate of a lock embodying myinvention showing the cup in elevation; Fig.- 2 is a plan view of the cup and its contents detached from its su port; Fig. 3 is a lan view of the cup with tie tumblers, an tumbler mechanism, the rotary plate, and the key barrel removed, showing the pendent studs of said plate in section, and indicating in dotted lines the position of said bolts and said studs when the bolts are drawn within the cup; Fig. 4 is a section on the line 4-4 of Fig. 2;: Fig. 5 is a plan view of the rotary plate Fig. 6 is a view of a modification of the invention illustrating how with slight change, the lock shown in the preceding figures may be converted into an au omatic spring, or snap lock, and Fig. 7 is a view of the form of key used with my improved rotary plate.

Like letters refer to like parts throughout the several views.

In the embodiment of my invention shown in the accompanying drawings, A indicates the body of a trunk or chest, and B, the cover thereof; Hinged to the hasp plate C on the part A is a swinging hasp D or other suitable support for the lock cup, the head of which is raised at D as shown to provide a chamber for the lock cup so as to bring the bottom thereof but slightly below the rim of said hasp, thus preserving the low flat effect'generally required in looks of this description,

while avoiding such a space under the rim of the hasp-as would permit the entrance of a tool without'marring the body of the trunk or chest. Secured to the cover B is the lock or socket plate E having a circular opening E therein. This plate differs from that hereto-. fore employed, however, in that its center 1 stamped or pressed up from sheet metal and is formed with integral wings a adapted to be passed through openings in the hasp and upset to economically unite these parts. Adjoining the bottom a, the cup a is pierced to form bolt openings therethrough at substantially diametrically opposite points.

Mounted on the bottom of the cup a are a plurality of sliding bolts I) each comprising a head 6 preferably carrying a shoulder b within said cup shaped so as to engage the wall thereof and limit the amount of projection of the bolt head; and a shank reduced on the inside as at c to form a way to permit the bolt to slide past and be guided by the key barrel or stud, and the head of the other bolt, and cut away on the outside, to form the abutment c and the oppositely disposed and inclined shoulders and c These shoulders converge toward the center of the cup as shown. The inner ends of the shanks c are rounded to permit them to slide close up to the cup wall, and the adjoining inner corners of each end and of the heads 6 are rounded to avoid a. collision and binding of the oppositely moving bolts. The bolts are preferably stamped from flat metal stock.

Riveted to the bottom of the cup (I at points adjacent to the walls thereof and at points diametrically opposite to each other are the tumbler pivot stud d and the tumbler spring tensioning stud e.

Seated in the cup a is a circular rotary plate f, a section of the edges of which at diametrically opposite points is turned downwardly to form the pendent studs f adapted to pass between-the shoulders c c and actuate the bolts, and support said plate from the bottom a of the cup and slightly above the bolts 1), the spaces left in the periphery of said plate constituting ways for the studs d and e respectively. Said plate carries a tumbler stud on its upper face.

it has been my practice heretofore to make plates of this character in two parts riveted together so that by cutting out the metal of the upper plate, the lower plate would forma support or rest for the key,,thus permitting the use of stamped plates and avoiding the necessity for machine finishing. To avoid the increased. cost due to the increased number of the dies and of the operations necessarv in constructing a composite plate as described, l preferably form the plate f of a single thickness of metal, and, excepting those required to bend the studs f and attach the eraser tumbler stud f at a single operation, cutting away a narrow quadrant at f concentric with the center of rotation of the plate, to form the Way with the shoulders at the ends thereof, necessary to permit the excess movement of the key required to actuate the tumblers prior to the rotation of the plate. The strip f between the quadrant and the opening for the key barrel or stud, forms the key seat. The tumblers g are mounted on the said plate and to provide a body of metal suflicient to permit such a variance in the width of the tumbler as to give a wide range of combinations for safety, I make them U-shaped with the opening for the bearing whereby it is mounted on the stud (Z in the bottom thereof. The arms of the tumbler straddle the key barrel or stud, and one arm g thereof, is imperforate'and so arranged as to covei'in part the quadrant f while the other arm 9 is provided with the usual double latch 72/ and the way h leading therefrom, adapted to engage and permit movement of the stud f in the usual manner. The tumbler springs i are ,tensioned by the stud (2 in the usual manner, and act against the arms g of the tumblers.

Passing through the center of the plate f and between the shanks c of the bolts 1) so as to form a guide therefor, is a slotted key barrel having oppositely disposed shoulders y" j adapted respectively to engage said plate, and the hasp head D. The key If is of the ordinary flat variety stepped so as to avoid engagement with the hasp head and impart the proper degree of movement to each tumbler; but is further provided with a downwardly projected finger if adapted to enter the quadrant f and actuate the platcf.

The construction of lock heretofore described, it will be observed, may be locked and unlocked by means of the key only, and this is the referred form of the invention. In the mo iiication shown in Fig. 6, however, I have illustrated the solo changes required to convert this manually operated lock into an automatic spring or snap lock. Such a conversion does not require an alteration of any of the parts of the lock except the bolts 5 and the studsf of the plate j. By cutting away a portion of each bolt head I), 1 form a spring chamber between the said bolt head and the key barrel j for the springs m, said springs being held in place by the shanks c of the bolts. To permit the necessary action of the bolts independently of the rotary plate f, it is also necessary to make the s-tudsf thereof narrower than in the preferred form of the invention. The under side of each bolt head would also necessarily be beveled to cause contact thereof with the lock or socket plate opening to actuate the bolts, as indicated in dotted lines at n in Fig. 6. It is also possible that the bolts should be made of thicker metal, and the cup a and socket plate E be drawn to a greater depth to accommodate bolts so increased in thickness, to secure the proper degree of bevel to insure reliability and ease of action.

. While I have shown the relation of the quadrant f to the tumblers g to be such as to require the key to be turned from within the tumblers outwardly, it is apparent that this arrangement would be controlled solely by the manner of attaching the lock and the necessity for inserting the key in the barrel in the customary osition.

The operation of the preferred formof the herein described lock is substantially as follows, it being assumed that the lock is latched or locked. When so locked or latched it will be observed that the hasp head D forms a chamber containing the cup a, and that the rim of said hasp incloses and protects this mechanism and the plate E, extending as close to the trunk lid or body as the hasp on the ordinary trunk lock. To withdraw the bolts within the cup (1 and thus release the hasp, the key 7c is inserted in the key barrel until the finger k thereof enters the quadrant f, the bottom of said 'key, coming to rest upon the stri f which serves as a support for and to stea y-the key. As the key and the key barrel are turned, the several steps on said key engage their respective tumbler arms g and rock the tumblers about their pivot stud d to an extent to release the'latch h in the arm g and permit-the key to pass from the control of said tumblers until the finger k engages the far shoulder of the quadrant f whereupon further movement of the key rotates .the plate-f, the studs f thereof moving in the way h. Owing'to the limited space within the cup a and the necessity for having the dimensions of the shanks 0 such as to give the requiredstrength of material, it is necessary to give the entire projection of the bolt heads I) and to withdraw them with as little movement of the plate as is possible. It

' shoulder c and increasing the direct move studs will 'be'observed that as the bolt studs f describe an are, they assume an angular position relative to the shank of the bolt, the rear edge thereof engaging the inclined ment of the bolt over the direct throw of the stud by the quantity of movement repre sented by the pitch of this incline. This action is due to the simultaneous quantity ofmovement of the studs f on a line parallel to the tangent of the are described at its highest point, and on a line perpendicular thereto, the former of which movements would give a direct in'ovement considerably less than the are described, and the latter of which, but for the wedge effect produced by the inclined sh ulder c or a would ordinarily be lost mo ion. The pressure from the if" is applied simultaneously to the bolts in two directions at right angles to each other, at any point of the are described,

one substantially direct movement. and the other changed to a supplemental direct movement by the wedging action'aforesaid. It will also be observed that as one edge of said studs f travels down one incline, the opposite edge travels u the other, thus permitting this increase quantity of movement This withdraws the bolts entirely "within the cup a and permits the haspD to be raised. To relatch the lock, it is necessary to lower the hasp until the cup passes through the opening E in the raised central portion of the plate E and is brought to rest by the rim of the hasp D, which position by reason of the raised or bulged head D brings the bolts 7) in the pro er position to be projected beneath the-p ate E. Then by rotating the plate f in the opposite direction, the studs f with relation thereto. as above described with relation to the shoulder 0 reverses the direction of movement of said bolts. It .is apparentthat before the hasp can be brought down as described, the bolts 1) must be withdrawn within the cup (1 with the key retained in the lock.

The operation of the modification shown in Fig. 6 is in the main identical with that of the preferred form of the invention, except that to 'relatch the lock, it is merely necessary to press the hasp to place, the

serving to force the bolts within the cup at against the tension of the springs m which springs when the bolts havepassed be eath 'the plate E, immediately reject the bolts from said cup under said p ate, the reduced sizeofthe studs f permitting this movement of the/colt independently of the plate f. It will beobserved that the various working parts within the'cup a areso nested as to hold each other in lace, and that the has head D confines all these parts, thus avoi ing the use of rivets and the resulting loss in time, labor and material. The studs f resting on the bottom 0/, reduces the friction to a very small area, andat the same time, relieves the bolts from the pressure of the plate f. i

It is not my intention to limit the invention to the precise details of construction herein shown and described, as itis apparent that such may be varied to accommodate the invention to different designs of looks without departing from the spirit andscope of the invention. I believe it to be broadly new to provide a rotary plate stamped from sheet metal with an integral key seat; to provide a U-shaped tumbler substantially as described, to provide a bolt actuated by a robolt to increase the quantity of projection of plate having a central raised ortion to avoid the cutting: away of the trun or chest body beveled under surface not the bolt heads I)" tary plate acting against an incline on said said bolt, and to provide a socket or look act against the shoulders c, and operating T &

or cover, and I intend to claim each such said abutment on said bolt, key controlled means whereby said plate may be actuated, alsupport for said cup and a lock or socket ate. p 2. In a look, a lock cup having a bolt open ing therein, a sliding bolt seated in said cup andprojecting through said opening having a reduced shank provided with laterally projected abutments whereby oppositely disposed shoulders are formed, a guide for said shank, a rotary plate carrying a pendent stud seated between said shoulderswhereby the rotation of said plate in opposite directions will project or withdraw said bolt, key

controlled means whereby said plate may be actuated, a support for said cup, and a lock or socket plate. I

3. In a look, a lock cup having a bolt opening therein, a sliding bolt seated/ in said cup and projecting through said opening having a shank provided with a laterally projected abutment presenting an inclined shoulder, a guide for said shank, a rotary plate carrying a pendent stud adapted to engage said abutment' on said bolt, key controlled means whereby said plate may be actuated, a,sup port for said cup and a lock or socket plate.

.4. In a look, a lock cup having a bolt opening therein, a sliding bolt seated in said cup and projecting through said opening having a reduced shank provided with a laterally projected abutment whereby oppositely disposed shoulders converging toward the conter of rotation of the rotary controlling plate, are formed, a guide for said shank, a rotary plate carrying a pendent stud seated betweensaid shoulders whereby the rotation of said plate in opposite directions will project or withdraw said bolt, key controlled means whereby said plate may be actuated a support for said cup, and a lock or socket plate.

5. In a lock, a lock cup having a plurality of substantially diametrically opposite bolt openings therein, a plurality of oppositely sliding bolts seated in said cup and projecting through said bolt openings respectively,

each having a shank provided with a laterally projected abutment whereby oppositely disposed shoulders converging toward the center of rotation of the rotary controlling plate, are formed, a guide for said shanks, a rotary plate carrying a plurality of pendent -means whereby said plate may be actuated,

a support for said cup, and a locker socket plate.

6. In a lock, a rotary controlling plate consisting of a single thickness of sheet metal having a central bearing, and a segmental opening therein concentric with said bearing whereby a key support is formed adjacent to said bearing, and a downwardly bent integral sectionof said plate whereby the rotation of said plate may actuate the bolts of a lock.

7. In a look, a substantially U-shapcd tumbler having a bearing in the bottom thereof, the arms thereof being adapted to straddlethe key pin or barrel, one of said arms having a latch opening therein, and the other being imperforate and adapted to cover the key seat or way in the actuating mechanism and to be engaged b y the key.

S. In a lock, a lock cup having a bolt opening therein, oppositely disposed studs carried by said cup, a bolt in said cup projecting from said opening, a rotary plate, means carried by said plate whereby said bolt may be actuated, a tumbler stud on said plate, a substantiallyU-shaped tumbler having a bearing in the bottom thereof mounted on one of said studs carried by said cup, the arms of said tumbler being adapted to straddle the key pin or barrel of the lock, one of said arms being imperforate and adapted to cover. a key seat or way in said plate, and the other said arm being adapted toengage said tumbler stud on said plate, a spring acting on said last -mentioi1ed arm tensioned by the other stud carried by said cup, a key guide,

and a lock or socket plate.

posite bolt openings therein, oppositely dis-' posed studs carried by said cup, a plurality of oppositely sliding bolts seated in said cup and projecting through said openings respectively, each having a shank provided with a laterally projected abutment whereby oppositely disposed shoulders -conyeiging towardthe center of rotation of the rotary controlling plate, are formed,- a rotary plate having a key seat and opposed shoulders thereon a plurality of pendent studs at diametrically opposite poi'nts thereof seated be tween said shoulders on said bolts, respectively, whereby the rotation of said plate in opposite directions will project or withdraw said bolts, and ways adjoining said last mentioned studs for the studs carried by said cup, a tumbler stud carriedby said plate, a key barrel passing through said plates and between said bolts, a substantially U-shaped tumbler having a bearing in the bottom thereof mounted on one of said studs carried circular opening therein an swinging hasp having a downwardly project-ed circular flange, or rim on the head thereof, a cylindrical cup having a closed bottom, within said head and havinga bolt opening in the side thereof, a bolt adapted to be projected through said opening; and means whereby movement of said olt is controlled, of a lock or socket (plate having a thereof adjacent to the edge of said opening raised or drawn up so as to be containe within the flange or rim of the hasp; to permit the cup to pass through the opening and to permit the bolt to be projected thereunder and between said lock or socket plate and a trunk or chest.

the portion 11. In a lock, the combination with a swinging hasp having the central ortion of the head raised, or rawn up an a downwardly projected circular flange or rim on said head, a cylindrical cup having a closed bottom carried below the raised or drawn up portion of the hasp head--whereby the cup is contained within the flange or rim'of said head, said cup having an opening in the side thereof, a bolt adapted tobe projected through said opening, a bolt controlling mechanism within said cup and a lock or socket plate having a circular opening therein and the portion thereof ad acent to the ed e of said opening raised or drawn up so as to e contained within the flange or run of the hasp; to permit the cuplto pass through the o ening and to permit t e bolt to be jecte thereunder and between the said or socket plate and a trunk or chest.

-In witness whereof, I have hereunto affixed my signature, this 27th day of November. 1905. in the presence of two witnesses.

FRANK S. ALIANO.

ock

Witnesses:

W. H. BLAIN, F. T. WENTWORTH.

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