US551154A - Indicator-lock - Google Patents

Description

(No Model.) 5 2 Sheets-Sheet 2.

W F.- B-EASLEY.

INDICATOR LOOK. No. 551,154. P5555555 5 10,1595,

UNTTED STATES PATENT @FFICE.

\VILLIAM F. BEASLEY, OF BALTIMORE, MARYLAND.

INDICATOR-LOCK.

SPECIFICATION forming part of Letters Patent No. 551 ,154, dated December 10, 1895.

Application filed November 8, 1893. Serial No. 490,366. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM F. BEASLEY, a citizen of the United States, residing at Baltimore, State of Maryland, have invented certain new and useful Improvements in Locks; 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 has for its object to provide a lock having the following advantages over locks now in use:

In the so-called pin-locks it has been possible to pick them by placing a strain upon the barrel and by then moving the lockingpins in any suitable manner outward until the barrel is disengaged, the friction exerted upon the pins by the strain upon the barrel, retaining them in the position in which they may be thus placed, thus permitting the picking of the lock. In order to prevent this, I form upon the barrel shoulders which project toward the space which is occupied by the locking-pins when the barrel is locked, and which are adapted, upon a slight rotary motion of the barrel, to bear upon the said pins, whereby upon putting a strain upon the barrel the edges formed by the shoulders will bite the pins and hold them against the outward movement that is necessary in order to loosen the barrel. The engagement of the shoulders with the pins may be assisted, if desired, by forming corrugations or grooves upon the spring-pressed pins, and in this case the shoulders upon the barrel will, when the barrel is moved in the manner above described, project within the recesses formed by the corrugations or grooves in the pins.

In the class of locks of the character sh own in the patent granted to Henry Clarke 011 the 30th day of September, 187 9, No. 220,124, it is necessary that means be provided to prevent the backward movement of the barrel, and that these means he so constructed as to prevent their disengagement in any manner, and for this purpose I form upon the barrel a shoulder which overhangs and which is adapted to engage a spring-pressed pin, having a nose, when the barrel is in its locked position, thus preventing the backward rotation when the latter is unlocked, for its forshoulder similar to that above described and so place it upon the barrel as to engage the said pin when the barrel has moved forwardly a sufficient distance to throw the registering mechanism, whereby the forcing of the registering mechanism will be prevented upon an attempted backward rotation of the barrel from that position. In the class of registering mechanism of the character shown in the said patent to Clarke it is desirable in some cases that a positive lock against the backward rotation thereof should be provided, and for this purpose I secure to one of the registering-wheels thereof or to the carrying wheel or collar or form such registeringwheel or carrying wheel or collar with a ratchet, which is adapted to be engaged by a springpressed dog, whereby such object is obtained.

My invention moreover consists in the 0011- struction, arrangement, and combination of the several parts of which it is composed, as will hereinafter be more fully described and claimed.

Referring to the accompanying drawings, in which corresponding parts are designated by similar marks of reference, Figure l is a longitudinal central section of my invention, taken on line a a of Fig. 2, the shackle being shown as locked. Fig. 2 is a vertical crossseetion on line b b of Fig. 1. Fig. 3 is fragmental vertical cross-section on line d d of Fig. 1. Fig. at is a vertical cross-section on line 0 c of Fig. 1. Fig. 5 is a vertical crosssection on line 6 e of Fig. 1, the shackle being removed from without its catch. Fig. 6 is a fragmental view similar to Fig. 1, showing a modified form of the catch for the shackle. Fig. 7 is a cross-section on line f f of Fig. 6, the barrel being rotated forward through a quarter of a revolution from the position shown in the latter figure. Fig. Sis a detailed view of the locking-barrel and parts mounted thereon. Fig. 9 is a detailed view of a modified form of locking-pin.

The casin g 1 is cylindrical in shape and has the front end thereof closed by the head 2, pro vided with the central aperture 3, while a plug 4 fits into the rear end of the cylinder and is secured therein, the said plug forming a housin g for the spring-pressed locking-pins, as will be hereinafter described, and having an aperture therein, the said aperture (5) being in alignment with the aperture 3 in the head of the cylinder. The shackle 6 is shaped as shown in Fig. 1, and has its rear end pivoted within the open cut or slot 7 in the rear of the cylinder and plug by means of the pivot-pin.

S, which passes through the said plug, and is held against lateral displacement by means of the cylinder, as is shown in Fig. 4:. The other end of the shackle has an offset 9 formed therein on each of its sides (its front and rear) and is adapted to be inserted through the aperture 10 in the top of the casing, near the front end thereof.

A barrel 11 is mounted within the casing and has its two ends contained in the aper-' tures 3 and 5 in the head 2 and plug 4:, respectively, the said barrel being slotted from the front to near its rear end to form the keyway 12, while a button 13 is secured to the barrel near its rear end, and is contained within the offset 1+1: formed in the plu on its inner face and around the aperture 5. A series of apertures or holes 15 are formed in the plug, extending from the aperture 5 therein radially outward to its periphery, and contain in their outer ends the spiral spring 16 and in their inner ends the locking-pins 1.7, which are thus forced into the perforations 18 in the barrel and button, in which perforations 18 the pins 19 are contained, and which pins 19 are adapted to be forced outwardly upon the insertion of thekey until their outer ends and the inner ends of the pins 17 are upon the peripheral line of the button 13, whereby the barrel upon which thebutton is mounted is released for rotation.

In order to afford a means for preventing the movement of the pins while a strain is exerted upon the barrel, a dovetailed groove 21 is cut longitudinally in the surface of the barrel (or button which forms a part thereof) and immediately above the outer ends of the perforations 18, thus forming a shoulder immediately above the front and rear sides of the perforations 18, which from the sharpness of theiredges will, upon a strain being placed upon the barrel, bite the locking-pins 17 and prevent the forcing of them outwardly. In order to assist in this result, I may, if I desire, corru gate the locking-pins 17 by forming a series of annular grooves therein, the one above the other, in which grooves the shoulders 20 will engage. It will be seen from this construction that the sides of groove 21 form with the periphery of the barrel or collar acute angles and the corresponding acute shoulders 20; that if aplain pin is used such acute shoulders will bite thereon, while if a corrugated pin is used the shoulder will enter one of the grooves formed therein and e11- gage a projection formed thereby on the pin, and that, as shown, the edges of the shoulders are in the same planes as are the front and rear walls of the pin-holes 18.

In order to prevent the backward rotation of the barrel, I provide a pin 17 contained in an aperture 15 in the plug, (the said aperture 15 being in alignment with and similar to the apertures 15,) and I also place within the said aperture 15 a spring 16, similar to the spring 16. Upon the barrela shoulderis formed (designated by 20) by continuing the dovetailed groove 21, which forms the shoulders 20, and cutting away the rear shoulder thereof, (see Figs. and 8,) the shoulder 20 thus formed being adapted to engage a head 22 upon the inner end of the spring-pressed pin 17. As shown in the drawings, the head 22 is conical and flared and projects forwardly from the radial line upon which the pin moves, thus catching under the overhanging rearwardly-facing shoulder 20 of the barrel, and being thus held against displacement and locking the barrel against a rearward rotation, while upon a forward rotation of the barrel the pin 17 will be forced outwardly by the bevel 23 upon the barrel, and will, when the barrel is rotated a sufficient distance forward to actuate the registering 1110Cllanism, be pressed down by the spring 10 and engage the shoulder 2-1 upon the barrel, corresponding in shape to the shoulder 20, thus locking the barrel against a rearward rotation from its last-named position and rendering it necessary after having unlocked the barrel and turned it a sufficient distance to actuate the register to turn it through a comple circle in order to again lock it. In order to permit the pin 17 to be moved outwardly, an offset 25 is formed at the inner end of the hole 15 to receive the head 22 of the pin.

Upon the forward end of the barrel is secured the locking-head by means of the key 31, the said locking-head being recessed at its end, as at 32, and formed with oppositely-disposed arc-shaped flanges 33, which are adapted to enter into the offsets 9 in the free end of the shackle, and to thus hold it, the said offsets 9 in this case being by pref? erence also arc-shaped. The shackle is disengaged from the flanges 33 by rotating the barrel forward through a sufficient are, when the shackle may be raised, and is engaged by the said flanges when it is depressed and the barrel turned through the necessary are to cause it to regain its original position.

In lieu of forming the arc-shaped shoulders 33 upon the locking-head, I may, if I so desire, and as is shown in Figs. 6 and 7, pivot arms 31 to the locking-head, the said arms having oppositely-disposed straight flanges 35, and inclines 36 upon their outer ends, the said inclines 36, in connection with corresponding inclines 37 upon the casing, causing the arms 3+L to move toward each other and to engage in the recesses or offsets 9 in the shackle, while upon the movement of the barrel the inclines will move from off the inclines 37, and the arms being pressed apart by the spring 33 will permit the flanges 35, carried by the said arms 3. to release the shackle. The shackle may be again engaged IIO by continuing the rotation of the barrel until it regains its original position, when the inclines 36 will slide upon the inclines 37 and again force the flanges 35 into the offsets 9 in the shackle. In order to prevent the entrance of dust or dirt into the casing, or the introduction of any instrument to force the registering mechanism, a diaphragm 39 is loosely mounted on the barrel 11 and divides or separates the portion of the casing in which the locking-head 3O revolves from the portionin which the registering and locking mechanism are contained. v

The registering mechanism consists of a series of disks 40, which are of such a size as to fit snugly within the casin g, by which they are centered, and which have numerals or other designating-marks upon their periphery, the said marks being read through a slot 41 in the sides of the casing. Each of the disks has a channel 42 formed in its inner periphery and a number of teeth 43, corresponding in number to the number of designating-marks upon its periphery, the said teeth being formed by notches 44, formed in the said disks. A series of floating wheels 45 is mounted upon a post 46, projecting from a plug 4, the said floating wheels being such as are described in the hereinbefore-mentioned patent to Olarke-that is to say, being provided with pins 49 and shoulders 48, the said pins being adapted to engage in the notches 44 of the indicating-disks 40 and the shoulders being adapted to be struck by pins 49 upon the indicating-disks 40, as is described therein, and which, therefore, need no further description here, the floating wheels being merely placed inside of the registering-wheels instead of exterior thereto. The carrying wheel or collar 50 is of the same construction as described in the said patent to Clarke, (except as hereinafter described,) and is adapted to throw the first floating wheel, it being secured upon the barrel in any suitable manner. A series of ratchets 51 or their equivalents is formed upon the said collar, while a spring pressed dog 52 (which may if desired be pivoted upon the post 46) is adapted to engage them, and to thus hold the barrel, collar, and registering mechanism against a backward rotation if it be attempted while the barrel is moving from the position in which the pin 17 engages the shoulder 20 to the position in which the said pin engages the shoulder In order to prevent the removal of the shackle if the pivot 8 should be severed while the free end of the shackle is engaged by the flanges 33, I form the pivoted end of the shackle in the shape of adisk (30, through the center of which the pivot-pin passes, while the cut in which it is contained is also circular in shape, the plug 4 and easing 1 being so shaped as to form a nose 61, which projects into a recess 62 in the shackle near its pivoted end when the said shackle is in a position to be locked, thus preventing the withfrom the rear, thus permitting the withdrawal of the disk 60 from the slot or out only when moved in that direction and rendering it impossible for it to be done while the free end of the shackle is within the aperture 10 of the casing.

In lieu of using the form of locking-pins shown in Figs. 1 and 4, I may, if I desire, use a pin having a shape similar to the pin 17 (shown in Fig. 3)-that is to say, having an enlarged and conical head secured upon the lower end of the straight body or portion, such a head being engaged by the shoulders 20 in the manner-hereinbefore described or a pin similar to that shown in Fig. 9 may be used, in which case a single groove is formed around the inner end of the locking-pin 17 forming a head 17 which, however, is not of greater diameter than the body of the pin.

In this construction the head 17 will be engaged by the shoulders 20 on the barrel in a manner similar to that in which the groovepins 17 are engaged, and in the following claims by the term corrugated pin I desire to be understood as meaning either a pin formed with a series of grooves, or with a head larger than the body of the pin, or with a head ofthe same size as the body of the pin and separated therefrom by a single groove.

In the following claims I use the words overhanging shoulder as designating any shoulder projecting toward the path of the locking-pin when the barrel is locked, and whereby an undercut is formed in the barrel, and overhanging acute shoulder as such an overhanging shoulder formed by two converging faces, both of which are inclined at an angle to the path of movement to the locking-pin when the barrel is locked, and I wish to be so understood, and not as limiting my invention to the specific construction herein shown and described.

Having thus described my invention, what I claim is- 1. The combination, with a revolving barrel having an overhanging shoulder thereon, of a corrugated pin adapted to be engaged by the said shoulder to lock the barrel against rotation in one direction, substantially as described.

2. In alock, the combination, with a revolvin g barrel having an overhanging acute shoulder thereon, of a pin adapted to be engaged by the said shoulder to lock the barrel against rotation, and means for retracting the said pin, substantially as described.

3. In alock, the combination, with a revolving barrel having an overhanging shoulder thereon, of a corrugated pin adapted to be engaged by the said shoulder to lock the barrel against rotation, and means other than the barrel for retracting the said pin, substan tially as described.

4. In a lock, the combination, with a slotted revolving barrel having an overhanging acute shoulder thereon, of a pin adapted to be 'engaged by the said shoulder to lock the barrel against rotation and to be disengaged therefrom by a key inserted in the slot, substantially as described.

5. In a lock, the combination with a revolving barrel having a perforation therein and overhanging shoulders upon the opposite sides of the said perforation, of a corrugated locking pin adapted to enter the said perforation and to be engaged by the shoulders, and means for retracting the said pins, substantially as described.

6. In alock, the combination, with a revolving barrel having a series of perforations therein and having a groove in its periphery at the outer ends of the perforations and forming oppositely placed overhanging shoulders, of corrugated looking pins adapted to enter the perforations and to be engaged by the shoulders, and means for retracting the pins,

substantially as described.

7. In a lock, the combination, with a revolving slotted barrel having a series of perforations therein and having a longitudinal groove formed in its periphery above the outer ends of the perforations and extending beyond the same and forming oppositely placed overhanging shoulders, one of the overhanging shoulders formed by the extended portion of the groove being cut away, of driver pins contained in the perforations, corrugated looking pins adapted to enter the perforations and to be engaged by the shoulders, and a pin adapted to engage the one shoulder opposite the cut away portion of the other, substantially as described.

8. In a lock, the combination, with a revolving barrel having a longitudinal groove formed in its periphery forming oppositely placed overhanging acute shoulders, one of the shoulders being partially cut away, of locking pins adapted to enter the said groove and to be engaged by the shoulders formed thereby, a pin adapted to engage the one shoulder opposite the cut away portion of the other, and means for retracting the looking pins, substantially as described.

9. In a lock, the combination with a corrugated locking pin, of a revoluble barrel, having a driver pin and a recess therefor, and means for engaging the said corrugated pin when pressure is applied to turn said barrel 5 by means other than the proper key, substantially as described.

10. In a lock, the combination,with a corrugated locking pin, of a revoluble barrel having a driver pin and a recess therefor, the latter having an enlargement to receive the corrugation upon the locking pin when pressure is applied to turn said barrel by means other than the proper key, substantially as described. 6

11. In a lock, the combination, with a rcvolving barrel, of indicating mechanism thrown thereby, and means whereby the barrel may be locked against rearward rotation in a position intermediate to its locked po- 7 sition and to the position in which it throws the registering mechanism, substantially as described.

12. In a lock, the combination, with a revolving barrel, of indicating mechanism 7 thrown thereby, a collar secured on the said barrel and adapted to throw the indicating mechanism, and means whereby the barrel may be locked against rotation in a rearward direction, between the locked position thereof and the position in which the indicating mechanism is thrown, said means consisting of ratchets upon the collar and a spring pressed dog engaging therewith, substantially as described.

13. The combination with a casing, of a revolving barrel having a locking head mounted thereon and contained within the casing, arms provided with flanges and inclines pivoted to the said locking head, a pivoted shackle having oif-sets in its free end, and inclines upon the casing, adapted, in connection with the inclines upon the arms, to force the flanges upon the latter into the oif-sci in. the shackle, substantially as described. 8

In testimony whereof I affix my signature in presence of two witnesses.

XVILLIAM F. BEASLEY. \Vitnesses VERNON M. DORSEY, ELEANOR TIPPETT.

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