US392411A

US392411A - cohen

Info

Publication number: US392411A
Authority: US
Publication date: 1888-11-06
Anticipated expiration: 1905-11-06

Description

ZSheets-Sheet 1.

t(No Model.)

S. A. COHEN.

'BOOK LOGK.

Patented Nov. 6, 1888.

Witnesses,

,N. PETERS PhMO-LHMKHPMI', Wahlnm 17.8.

(No Model.)

' 2 Sheets-Sheet 2. S. A. COHEN.

BOOK LOCK.

Patented Nov. 6, 1888.

Jnrwzl'or:

Witnesses UNITED STATES PATENT @FFICE.

STANLEY A. COHEN, or iinw YORK, n. Y.

BOOK-:LOCK.

SPECIFICATION forming part of Letters Patent No. 392,411, dated November 6, 1888.

Application filed August 1,1888.

, To all whom it may concern.-

' xx, Fig. 1, the book being left out.

5o stud, f, containing a series of notches.

Be it known that I, STANLEY A. COHEN, of the city of New'York and the State of New York, have invented certain new and useful Improvements in Book-Locks for Press-Copy- 1ng Letter-Books, of which the following is a specification, reference being had to the accompanying drawings and the letters marked thereon, forming part thereof.

The object of the invention is to furnish a suitable lock attachment to a press-copying letter-book, so that the contents of the book cannot be surreptitiously examined while thebook is exposed for use during office hours or out of its safe or lock-up.

The present device is adjustable to different sized and thicknesses of books.

In the accompanying drawings, Figure 1 is a perspective View of my improved book-lock attached to a press-copying letter-book. Fig.

2 is a cross-section thereof, taken in the line Fig. 3 are detail views illustrating the manner in which the corner pieces or clamps of the booklock are constructed so as to admit of their adjustment to books of variable thickness. Fig. 4 is a detail view illustratingthe manner in which the adjustment is effected, showing stud in one and the corresponding hole in a pair of corner-clamps. The one having the hole is shown in section. Fig. 5 is a similar detail view to Fig. 4, showing the ends of the corner pieces or clamps interlocked. Fig. 6 is a modification of my improved book-lock. Fig. 7 is a section on line y g of Fig. 6, taken in the direction of the arrows. This view also shows the book in cross-section.

In the arrangement, Figs. 1 to 5, inclusive, a is a letter-press copying-book. b b b b are two pairs of metal bands, two on each side of the book-cover, and connected together by rivets at b b. The other ends of these metal bands are respectively connected to the central portions of the corner frames or clamps c c c 0. These corner frames or clamps have bent-over ends (I d d d at one side and lugs e e c 0' at the othcr'side or portion of the frames grasping the front edge of the book. From the lugs c 0 there projects down into the lugs c e a When Serial NoQSLGQi. (No model.)

the corner frame or clamp is in position on the book-that is, both of its bars 0 cin a parallel position-one of these notches will be in the hole 9 in the lug c and so turned round therein that the notch will catch onto the lug c. This determines the thickness of the book. The operation of the device to change it to another thickness of book will be explained farther along. his a chain which is rigidly attached to the inner ends of bars b b, and is brought around to the other two, b I), which latter contains in its rivet an eye, c, over which a link of the chain may be placed. A small padlock, j, secures the chain in position, as seen in Fig. 1. The lazy-tongs action of bands b b b b, so connected to each other at their inner ends and to the bands 0 c 0 'c at their central portions, will cause the device to adjust itself readily to the width and length of the book, the chain passing around the back of such book and being readily secured in one of its links to the bands I) b b b. The bands 0 cc 0' are changed from one thickness of book to another by throwing each pair of bands out of parallelism, as seen in Fig. 4, thus admitting of the release of the notch of the stud f from the hole g in the lug 6, so as to drop down or draw up through said hole 9 the stud f to a proper position to suit the thickness of the letter-book onwhich it is desired to replace the device. hen the band 0 is turned around again into parallelism with band a, as shown in Fig. 5, then one of the notches on stud f will turn around and look into the flange c.

In the drawings, Figs. 6 and 7, the same construction of locking device is shown as in the other figures,eXcept that the corner frames or clamps c c c c are not furnished with bentovcr ends and lugs, so as to permit of the same character of adjustability for the thickness of the book. The provision in Figs. 6 and 7 is very simple. In the ends of the corner-frames c c c c are slots 7c, in which are threaded leather bands ZZ ZZ. These bands will be drawn a little over the sides of the book when such book is thinner than the full depth or complete letout of the bands. On the inner ends, I), of

the metal bands I) b b I) are also slots, so that the ends of the leather strap a may be secured thereto and the straps be buckled across the hack of the book after the device is properly drawn over the book.

The padlock is inserted through an eye, 0, made in the tongue of the strap-buckle, thus securing the contents of the book in this niodification as effectually as shown in Figs. 1 to 5, inclusive.

I claim- 1. In the book-locking device herein described, the combination of two corner frames or clamps with two pairs of adjustable bands and means for locking said frames and bands to the book, substantially as described.

2. In the book-locking device herein described, the combination of the corner frames or clamps e c c c with the adjustable bands I) b b b and a chain for securing the inner ends of the bands I) b b b together and the device securely upon the book, substantially as described.

3. In the book-locking device herein described, the arrangement of adjustable corner frames or clamps so that the members thereof can be separated or drawn together by means of the notched stud f, placed upon one of the bars, 0, and passing down through the lug c on the other bar, 0, substantiallyas described. STANLEY A. COHEN. Witnesses:

ALBERT S. ConnN, RICHARD WALroRD.