US556232A - George w - Google Patents

Description

(No EEQdeL) G. W. WERNER. PADLOGKI.

No. 556,232. Patented Mara-10, 1 896.

UN TED STATES PATENT OFFI E.

GEORGE IV. \VERNER, OF LANCASTER, PENNSYLVANIA, ASSIGNOR TO EDIVARD T. FRAIM, OF SAME PLACE.

PAD LOCK.

SPECIFICATION forming part of Letters Patent No. 556,232, dated March 10, 1896.

' Application filed June '7, 1895. serial No. 551,986. (No model.)

T at whom it mag concern.-

Be it known that I, GEORGE W. \VERNER, a citizenof the United States, residing at Lancaster, in the county of Lancaster and State of Pennsylvania, have invented certain new and useful Improvements in a Padlock Locking WVithout a Key; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention'relates to improvements in a padlock of that class adapted to be locked automatically or without a key onto a fixed staple or eyebolt within a recess in thecase,

its shackle or looking bolt moving in a circular arc and passing through the opening of said staple or eyebolt.

The object of the invention is the production of a compact, neat and efficient padlock, as well as to simplify and cheapen its construction.

The elements of the invention, as well as their arrangement and operation, will severally and distinctly appear in the following description and be separately and collectively set forth in the claims.

The purposes of the invention are attained by the mechanism and devices illustrated in the accompanying drawings, similar reference letters and figures designatinglike parts throughout the several views, in which- Figure 1 is plan of a padlock embodying the elements of the invention. Figs. 2 and 3 are similar views with the top plate or cap removed, showing the mechanism in locked and unlocked positions. Fig. 4 is a similar view to Fig. 3, showing a modification of the shackle or bolt releasing device. Figs. 5 and 6 are completed top views, respectively, of Figs. 3 and 4; and Figs. 7, 8, 9, 10, 11, and 12 are views showing details in the construction and operation.

The case A of the lock is preferably circular in plan or cylindrical in form, comprising the base portion A and the top portion or covering-cap A secured together in any approved manner. In this instance pins a of the base are passed through orifices in the cap and riveted thereon, as shown in Fig. 1, and a indicates the joining line. (Best shown in Figs. 5 and 6.) The body of the case is provided through its edge and extending radially aprescribed distance toward the center thereof with a U-shaped recess A to receive the head of the eyebolt or the forward end of the staple referred to in the preamble hereto 'and indicated by dotted lines and circles I in Figs. 1, 2, 3 and at.

In the forward end of the recess through the right-hand wall thereof is an angular aperture a for the passage of the shackle-bolt in performing its functions, and directly opposite, in the left-hand wall, is a similar aperture, (L to receive and hold the forward end of said bolt when the lock is closed, while from the said left-hand aperture, along the horizontal center line and extending a prescribed distance beyond the middle of the curved portion of the recess-wall, is an elongated slot (0 for the passage of the blade or cam projection of the shackle-lever, to be hereinafter described. a designates a pin projecting upward from a boss centrally located on the bottom of the case on which said shackle is pivoted, and a designates a pivotpin properly located and also projecting upward from said bottom to support the lockin g tumbler or pawl and the actuating-spring, both to be hereinafter described Again, a and a designate circular orifices through the top and bottom plates of the case and properly located to pivotally receive the ends of the well known slotted key cylinder A (shown in elevation in Fig. 10,) and the orifice a in the top plate A is downwardly clongated to form a rectangular aperture (t for the passage of the blade of the well-known unlocking-key A (Shown in elevated plan in Fig. 11.

Fig. 7 shows the shackle in elevation as it appears when viewed from the right and dctached from the position indicated in Fig. 2.

As shown in the drawings, the shackle B is practically a lever having three arms or wings I) h b radiating or, curving from a common center, where an orifice b", engaged by the pin a before mentioned, serves to pivot the shackle in place. The outer end, B, of the arm Z) in filling the area of the apertures a a, before mentioned, curving circumferentially with the case and having a prescribed length, constitutes the bolt or securing-shaft of the lock. The arm I), in curv ing downward a prescribed distance and lying close to the left-hand side of the key-cylinder, is adapted to be engaged by the keyblade and to be raised thereby, withdrawing the belt or opening the lock. The arm b curving upward and extending to the left, has its upper face in the plane of the l1orizontal center line of the ease and its under face cut away to the dotted line 2 in Fig. 7, making it thinner, permitting it to pass through the slot a before mentioned, into the U-shaped recess A, also before mentioned, where by coming in contact with the staple or eyebolt, likewise before mentioned, it is adapted to be pressed downward into the case, releasing the shackle or looking the bolt. At a prescribed point in the vertical portion thereof the back of the arm Z) of the shackle is provided with a notch 11 to be engaged by a hook projection at the upper end of a pawl or tumbler lever yet to be described, holding the shackle back or in unlocked position, and at the bend thereof is a notch If, to be engaged by the upper face or the angular edge of said upper end of the pawl, holding the shackle closed or in locked position, while underneath at a prescribed point is a projection 71 to ride on the bottom plate of the case, holding the shackle-bolt in horizontal position as it moves back and forth in performing its functions. A tumbler 0, having two arms 0 joined together at one end and provided with an orifice 0 through the body thereof at the juncture of the arms, is pivoted through said orifice onto the pin a, before mentioned.

The arm 0, constituting the pawl, is provided at its free end with a downwardly-projectin g leg 0, adapted to ride on the bottom plate of the case, keeping the arm horizontally in place as it moves to and fro in performing its functions. At this end, as well as along the adjacent edge of this leg, is a slight side-curving projection forming a smoothly-working hook adapted to engage the notch b before mentioned, holding the shackle in unlocked or opened position, (best shown in Fig. 3,) and the angular edge of said hook is adapted to engage the notch Z), also before mentioned, holding the shackle firmly locked or in closed position, (see Fig. 9,) while the arm passing horizontally above the upper face of the shackle, curving over and about the key-cylinder and extending along the left-hand side thereof to a point at a prescribed distance below the lower end of the shackle-arm b, where its lower end 0 in being engaged by the key-blade, is adapted to be raised thereby before coming in contact with said shackle-arm, (see Fig. 2,) disengaging the upper end of the pawl-arm Cfrom the notch Z), thereby releasing the shackle, when its bolt 13 may be readily withdrawn and the lock opened by a continued rotation of the key, its blade changing from the position indicated in Fig. 2 to that indicated in Fig. 3. A notch c is placed at a prescribed point in the under edge of the arm 0 forming a stop to prevent the key-blade from turning backward to open the lock, and a twoarmed coiled spring 0", Fig. 9, placed in position on the pin a, and underneath the tumbler C, as shown, its arm o engaging the back of the tumbler and its arm 0 resting against the side of the case, serves to keep the pawlarm 0 in close contact with the shackle-arm, as shown, always forcing engagement of the pawl-hook with either shackle-notch D or U, accordingly as the shackle-bolt is in either closed or opened position.

)Vhen so desired the cam projection or the arm b may be omitted from the shackle-lever, as is plainly indicated in Fig. i. In this construction the slot a opening into the recess A, before mentioned, is likewise omitted, and an aperture 3 opening into said recess being arranged adjacent to the inner face of the bottom plate, and a sliding plate D, Fig. 12, may be placed in position within the case. (See Fig. 4.) This plate has an upper end projection 6 passing through the slot 3 to contact with the staple. In the body of the plate are slots (Z (Z to receive, respectively, the shackle pivot'pin and the key-eylinde:r, allowing freedom of motion down and up to the plate. Onto a side extension at the upper left-hand angle of the plate is rigidly secured a perpendicular projection or lug (1, to press onto the shackle-lever arm I), releasing the shackle when its bolt is to be shot or the lock; closed. To the lower end of the tumbler-pawl leg 0 is rigidly secured a flat strip or foot 4, (indicated by dotted lines in Fig. 4,) adapted to engage the upper right-hand angle of the plate when it occupies the position indicated by dotted lines in Fig. 4, holding said plate downwardly in place when the lock is closed. (Best shown in Fig. 12.)

It will here be observed that the construction just described and illustrated in Figs. 4, 0, and 12 is a full and complete equivalent to that hereinhefore set forth, and that other changes may be made or forms used, especially as to the introduction of the cam projection into the case'reeess for the releasing of the shackle or looking bolt, without disclosing any new idea or departing from. the spirit of the invention.

Having thus fully described the elements and ascertained the nature of this my invention and set forth the manner in which .it is performed,what I do consider new, and. desi re to secure by Letters Patent, is-

1. In a padlock having a case with a radial. recess extending through the peripheral. edge thereof and an opening through the wall. ol. the ease into said recess, said case having a centrally-pivoted shackle with a bolt passing over the open end of the recess and mechanism provided to hold the shackle open, a projection from within said case and passing through said opening into said recess to auto inatioally release said shackle, substantially as and for the purpose hereinbefore set forth.

2. A padlock comprising a case having a U-shaped recess radially extending through the edge thereof, a centrally-pivoted shackle within the case and having a bolt extending peripherally across the open end of said recess, notches at prescribed points in a side edge of said shackle and a pawl provided with a projecting point to engage said notches, a spring provided with an arm engaging the back edge of said pawl, arms projecting from the shackle and pawl with a key provided for withdrawing the shackle-bolt, and a projection into the case-recess provided for releasing the 1 5 GEO. W. WERNER. lVitnesses:

CHAS. R. KLINE, DANIEL l'I. IIERR.

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