US 1699757 A
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Description (OCR text may contain errors)
'S. SEGAL LOCK Jan. 22, 1929. 1,699,757
Filed Jan. 1926 INVEN'TOR.
Patented Jan. 22, 1929.
UNITED STATES PATENT I oFFlcE.
SAMUEL SEGAL, OF NEW YORK, N. Y., ASSIGNOR T0 SEGAL LOCK & HARDWARE 00., INC., 0]? NEW YORK, N. Y., A CORPORATION OF NEW YORK.
Application filed J'anuary'S, 1926. serial No. 80,207.
This invention relates to a. cylinder lock of improved construction.
It is an object of the invention to provide a lock the parts of which may be readily manufactured at a nominal cost, and which parts may be assembled with-facility and by the aid of comparatively unskilled labor.
It is a further object of the invention to provide a device of the nature aforestated in which the likelihood of breakage is reduced to a minimum, and in which the parts are adequately protected against the entrance of foreign matter, in addition to the fact that the parts may be readily disassembled by a locksmith when this becomes necessary.
- Other objects of the invention will in part be obvious and will in part appear hereinafter.
With these and further objects in mind, the invention accordingly comprises the features of construction, combination of elements and arrangement of parts which will be exemplified in the construction hereinafter set forth, and the scope of the application of "which will be indicated in the claims.
For a fullerlunderstanding of the nature and objects of the invention reference should be had to the following detailed description taken in connection with the accompanying drawings, in which:
Figure 1 is a sectional side view of a cylinder lock embracing one form of construction embodying the subject matter of the present invention;
Fig. 2 is a thereof; and
Fig. 3 is a fragmentary plan View of a different form of construction which may be utilized.
In these views the numeral 5 indicates the lock cylinder, within the bore of which a key plug 6 is rotatably mounted, the latter, for the sake of illustration, in the present instance being retained against longitudinal movement by means of a head 7 and a cap washer 8 with which a tailpiece 9 is associated.
As in conventional construction, the cylinder body 5 has a block-like extension 10 formed with a suitable number of bores 11 extending at right angles to the plug axis. Each of thesebores houses at its lower end apin 12, which latter are pressed by springs 13 into-contact with the plug 6 and cooperate partly sectional end elevation .thus assured.
with the tumblers latter.
It wlll be noted, as in Figs. 1 and 2 that (not shown) carried by the contrary to conventional construction, the
an opening formed in the strip 15 adjacent the rear end of the latter.
'With reference to the construction illustrated in Fig. 3, it will be observed that the longitudinally-extending bore which intersects the spring and pm housing bores is tapered towards the forward end of the cylinder, as has been indicated at 18. The body of the strip 19, which corresponds to the strip 15, is cut accordingly, and it will be understood that a wedge-fit of the parts is In both of the illustrated forms of the invention it will be appreciated that the parts may readily be constructed, and with particular reference to Figs. 1 and 2 it will be perceived that the plug and cylinder may be assembled and the springs and pins placed in position, subsequently to which the plug 16 is mounted within the rearmost bore 11 and in contact with the upper end of the spring positioned therein. With the springs and the plug retained in retracted position the strip 15 may now he slid into the bore 14, and upon this strip reaching its proper station the pin 17 will snap through the opening thereof, thus locking the strip against further movement. This operation may obviously be performed by unskilled labor, and the plug 16 will'serve to prevent the entrance of foreign matter through that portion of the bore 14 which is adjacent the rear of the cylinder. If it becomes necessary for a locksmith or other person to disassemble the cylinder, this may readily be accomplished by simplybearing against the outer end of the pin 17 until the latter reaches a position adjacent or below the inner face of the strip 15, at which time this strip ma be retracted. It is obvious that the bore 14 oes not necessarily have to be circular in cross section, but is merely so shown in that an opening of this nature may be readily formed by automatic machinery. Likewise, the strip 15 may be of any desirable shape consistent with the contour of the o ening within which it is dis-- prevent an accidental retraction of the strip from within the bore, particularly in view of the fact that these parts are usually not subjected to any strain. If a locking pin or plug is employed, a double safeguard against accidental displacement is provided.
Thus, among others, the objects of this invention have been accomplished, and since certain changes may be made in the above construction, and diiferent embodiments of the invention could be'made, without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall .be interpreted as illustrative and not in a limiting sense.
It is also to be understood that the following claims are intended to cover all of the eneric and s ecific features of the invention automatic means for locking said 'stri herein descri ed and all statements of, the scope of the invention which as a matter of language might be said to fall therebetween.
Having described my invention, what I claim as new and desire to secure by Letters Patent is:
1. In a cylinder lock, the combination with a cylinder body formed with a spring and pin housing bore and an opening intersecting said bore at a point short of the outer end p thereof, of means movable into position to. close the bore.
2. In a cylinder lock, the combination with a cylinder body formed with a plurality of spring and pin housing bores and an opening extendingtransversely of said bores, of a strip projectable within said opening, and in position upon its reaching a predetermined position and at which it closes said bores.
3. In a cylinder lock, the combination with a cylinder body formed with a plurality of spring and pin housing bores and an opening extending transversely of said bores, of a strip projectable within said opening, and
spring-pressed means engaging said strip and operating automatically upon the same upper end of said bore, of means disposed within said opening to close said bore, said plug bearing agalnst said means. 5. A cylinder lock, including a body formed with a bore, a pin within the lower end'oi said bore, a spring bearing against said pin, a plug against which the upper end of said spring bears, a pin forming a part of said plug, said body being formed with an opening adjacent the upper end of said bore, and a strip movable into said opening and being formed with an aperture within which the pin carried by said plug may ride to lock said strip in position. v 6. A cylinder lock, including, incombination, a cylinder body formed with a plurality of bores, pins positioned within the lower ends of said bores, springshaving their lower ends bearing against said pins, a plug mounted within one of said bores and engaging the upper end of the spring positioned therein, said body being formed with an opening at a point adjacent the outer ends of said bores, and a strip movable into said opening, said .plug bearing against said stri to prevent an accidental displacement thereo 7. A cylinder lock, including, in combination, a cylinder body formed with a plurality of bores, pins positioned within t e lower ends of said bores, springs having their lower ends bearing against said pins, a plug mounted within one of said bores and engaging the upper end of the spring positioned therein, said bod being formed with an opening at a point adjacent the outer ends of said bores, a strip movable into said opening, said strip being formed with an opening which is in line with said plug when said strip is in applied position, and a pin forming a part of said lu and entering said strip opening in such position to prevent a displacement of said parts.
8. A cylinder lock, including, in combination, a cylinder body formed with a pin and spring housin bore and an opening extend ing transverse y of said bore and adjacent the outer end thereof, said opening bein tapered, and a strip movable into said tapered opening to close the bore formed in said cylinder body.
9. A cylinder lock, including, in combination, a cylinder body formed with a pin and spring housing bore and an openin intersecting said bore against the upper end thereconcaved face of said strip to cause the convex face thereof to bear against the side wall of such body for closing the outer ends of said tumbler bores, and means for last-named means against accidental movement.
11. A look, including, in combination, a cylinder formed with a plug-receiving bore and a plurality of tumbler bores extending through its body to said first-named bore, means movableto a position at which it closes the outer ends of said tumbler bores, and means acting automatically to lock said latter means against movement as it reaches its bore-sealing position.
12. A look, including, cylinder body and a. block said body, said body being formed with a in combination, a
locking said forming a part of plug-receiving bore,
with an opening, said pin,
and a plurality of tumbler-receiving bores extending from said latter bore within said block and to the outer edge of the same, removable means for closing the outer ends of said bores, automatically upon said last-namedv means reaching a positionlat which it closes said bores, to lock the same against movement with respect to said cylinder body.
13. A look, including, in combination, a cylinder body formed with a plug-receiving bore and a bore extending therefrom to the outer face of said body, a spring Within said latter bore,
a pin also within said bore andand means acting engaged by said spring, and av plate closing the outer end of said bore and being formed when said plate reaches a position closing the outer bore end, entering said opening to prevent movement gfdsaid plate with respect to said cylinder I1 1 testimony whereof 1 affix my signature.