US920691A - Padlock. - Google Patents

Description

H. R. TOWNE.

PADLOOK.

APPLICATION FILED MAY 1, 190a.

Patented May 4, 1909.

INVENTOR A flo n e;

' ring over the e ges of the face plates, thusseats for the face plate.

UNITED STATES PATENT OFFICE.

HENRY a. rowun-or Maw YORK, Y., ASSIGNOR 'ro THE'YALE & Towns MANUFACTURING COMPANY, OF STAMFORD, CONNECTICUT.

' PAD'LOGK.

Specification of Letters Patent.

Patented'may 4, 1909.

A nemonsiecala 1,.1908. ses me. 430,394.

To all whom it may concern: I Be it known that I, HENRY-R. Towrvm'of 'New 'York, in the county of New York and State of New York, have invented certain new and useful Improvementsin Padlocks;

and I do-hereby declare the following to be 10 use the same.

-My invention relates to an improvement in padlocks, the object being to provide simple and effective means for ermanentlyconnecting the several parts of t e case, and it consists in providing a fiat ring or band madeof wrought or ductile metal, with internal seats for the face plates of the case, and then turnin or spinning the edges of the permanently locking the arts together. v

Inthe accompanying rawings, Figure 1 is a view in section of the blank from which the body of the lock: is formed, j Fig. .L2 shows the same expanded at its edges to form F' 3 is a similar view-with one of the face ates secured in place. Figs. 4 and 5 are si e and edge views respectivelyof the completed lock. Fig. 6

I is a viewin section of a fportion of the case ace plate-is formed wherein the seat for {the by a separate and Fig. E -is 'an' edge and 10 are views of another form of lock em:-

bodying the same method'of construction,"

flat rin 1 of wrought or ductile metal, of a width s ightly greater than the thickness of the case of a completed lock, and expand it at its opposite edges as shown at ,2, so as to form the shoulders or seats 3 on which the face plates 5 rest. The face plates which are preferably of sheet metal, may be flat, or t This face plate 5 is constructed to rest at its outer ring 1.

In the manufacture of the lock, I take a ey may be concavo-convex as shown,, the convex surface being on the outside;

peripheral =edge on the continuous annular a seat 3 andlis permanently secured in such (position by turning orispinning the expanded .edge 2 of the ring or body 1' over the outer edge of the'face plate -5.

b After one face plate 5-=has been secured in lace, the T assembled operative parts of the ock are placed withinthe ring or body :and

held therein by the other faceplate which is .then secured in place on its seat or'shoulcler 3 b turnin or s innin the other e anded edge 2 of tlie ring or bo ly over the oiiia er edge of said face plate.

The ring or body 1 is provided'with a slot toreceive the pivoted end 6 of theshackle 7,- and alsowith a slot for the passage of the free end 8 of the shackle.

In the construction shown in Figs. 6 to 10 inclusive, instead of expanding the opposite edges of the ring or body to form seats or supports for thev face plates, I employ an innor narrower sheet metal ring 9'within the outer ring 1*, theside edges of which form the shoulders or seats 3* on which the face plates rest, and against which they are held y turning orspinning .over the edges of the The constructionshown in Figs. 8, 9 and 10 is identical with that shown in the other figures except that it is a heavier lock and is v provided with key hole 10 at the bottom inview of a lock so constructed; 8, 9.11

stead of through the face plates as in Fig. 4. In Fig. 11 I have shown a cast rin or bodyof brass or other ductile metal, one ace plate being secured, and the other seatedbut not secured. By'this method .of construction the side plates become permanently secured tothe main body of the lock; thus making it impossible to get at the locking mechanism without destroying the lock.

The rings 1 shown in Figs. 1,2 and 3, and the rings l and 9 shown in Fig. 8, may be formed by any of the familiar methods, as for example, from a fiat annulus punched from sheet metal and then converted by a cupping process into-the desired form, or by unching a strip from sheet metal, bending it into the form of a ring and securing its ends to ether.

It is evident that changes in the method "described may be aresortedto without departing from the spirit and scope of my invention, hence I would have it understood that I do not confine myself to the exact

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