|Publication number||US297445 A|
|Publication date||Apr 22, 1884|
|Publication number||US 297445 A, US 297445A, US-A-297445, US297445 A, US297445A|
|Inventors||Uxmllijjj chaeles M. Pltjmb|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (15), Classifications (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
(No Model.) I
I O. M. PLUMB.
SEAL LOOK. No. 297,445. Patented Apr. 22, 1-884.
WITNESSES: INVBNTOR W WWW/10M KM my BY PW, HJOWA ATTORNEY N. PETERS, PhokrLilhngnplmr. wa llll llllll C4 UNITED STATES PATENT rrrce.
CHARLES M. PLUMB, OF MADISON, WVISOONSIN.
SPECIFICATION forming part of Letters Patent No. 297,445, dated April 22, 1884:.
Application filed February 20, 1884.
I ing is a specification.
My invention provides means for locking, sealing, and labeling boxes, bags, mail-bags, produce and express packages, the doors of cars and other vehicles, and other analogous applications, the doors and windows of buildings and apartments such as can be secured by means of a hasp and staple arrangement in the manner that hasps and staples are commonly applied and used, and is designed especially to prevent the surreptitious interference with the article in their charge by employs and others who may be entrusted with the care of thesame.
The construction and arrangement of the parts of my invention are such that when once applied to its proper use and locked it cannot then be unlocked without evidence of the same being recorded on one of the parts of the invention, as will be more fully described hereinafter. I attain these objects by the mechanism illustrated in the accompanying drawings, in which Figure l is a general view of my invention, as seen in vertical projection. Fig. 2 is the same with the front half of the lock-casting removed. Fig. 3 is a View of the vertical transverse cross-section, looking in the direction a a, Fig. 2. Fig. 4 is the same section as shown in Fig. 2, wherein the staple S isrepresented in a position at right angles to the vertical plane. Fig. 5 is a view of the vertical transverse section made by passing a plane through 00 at, Fig. 1.
S is the staple, of which part both s and s are extensions.
A is the look-case or frame-work of the casting,which,for convenience in manufacturing, may be cast in two parts, fastened together at the holes h h, &c.
B is a small staple, by which the seal-lock may be permanently fastened to whatever vehicle or receptacle it is intended to secure.
0 O are sockets, in which the extensions 8 (No model.)
8 of the staple S play freely when unlocked. The extension of 8 below the collar E,with corresponding socket, acts asa guide or keeper to secure steadiness when raising, 1owering,or turning the staple S in the necessary manipulations of my seal-lock. D is a double or two-ply spring, fastened at awhile the other end plays freelyin the slot f.
E isa collar located about midway on the staple-extension s. This collar serves a double purpose. It holds the staple S firmly after being pressed down' into position over the spring-catch c, as shown in Fig. 2. It also prevents the staple from slipping or falling out of its socket O, and thus being lost or stolen, when the lock is unsealed. The position of the collar E, when acting as a stop, is shown at E, Fig. 4. 7 1
E is a shoulder, which, when the machine is locked, fits in its socket g.
F is the seal-plate, which is held firmly in position, when locked, in channels a a n onearthenware, glass, paper, or any material or combination of materials that may be safely, quickly, and conveniently broken, when required, and yet strong enough to serve its purpose, taking into account the influences of the weather, rain, sleet, changes of temperature, &c. This part may also be used as a label, upon which could be indicatedif a car, for 'exan1ple-such particulars as where from, where to, number of the car, contents, instructions, stamp, or signature of agent, depending on the nature of the business.
Having now described my invention, I will proceed to explain how it works.
We will suppose the seal-lock to be open, as shown in Fig. 4. A seal-plate of the proper dimensions is placed in the channels a n and locks the staple in position. The seal-panel is The combination of the staple S, having the held securely by the channels a and the shoulextensions s and s, and the collar E, working ders L L. The staple S cannot be moved unin the sockets O G, with the seal-plate F, the I5 til the springcatch c is released, and this can double spring D, and catch 0, all arranged to only be released by breaking or cutting away operate as described, and for the purposes set the seal-panel, so that if a part or the whole of forth. this were thus broken or cut away. in order to release the spring-catch, the evidence of the I CHARLES M. PLUMB. same could not possibly be concealed. IO Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-
C. E. BUELL, STORM BULL.
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