US1019020A

US1019020A - Temporary binder.

Info

Publication number: US1019020A
Application number: US57735510A
Authority: US
Inventors: Albert L Bunce
Original assignee: WORKMAN Manufacturing Co
Current assignee: WORKMAN MANUFACTURING Co
Priority date: 1910-08-15
Filing date: 1910-08-15
Publication date: 1912-03-05
Anticipated expiration: 1929-03-05

Description

A. L. BUNCH.

TEMPORARY BINDER.

urmouxon FILED AUG.15,'1910.

Patented Mar. 5,'1912.

U TED STATES PATENT OFFICE.

ALBERT L. BUN CE, OF CHICAGO, ILLINOIS, ASSIGNOR T0 WORKMAN MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

TEMPORARY BINDER.

Specification of Letters Patent.

Application filed August 15, 1910. Serial No. 577,355.

The improved binder member which forms the special subject matter of my invention is constructed of sheet metal and is so made that no joints are visible in this construction, the binder member thereby being caused to present a neat appearance, and at the same time it possesses great strength and is cheap to construct. This member consists of a main body portion and a hinge pin socket which is formed integral therewith, the "edge of the metal forming this socket engaging the opposite edge of the metal sheet and holding it securely in position. 'These hinge pin sockets occur at intervals along the binder member, the, intervening spaces being occupied by corresponding hinge pin sockets on the covers of the binders.

A further advantage of my invention con sists in the special form of binder member, its inner side being made at an angle so that the leaves in the binder may be readily turned back when the binder is open and follow the curvature of the cover when this is. done. The cover is preferably s0 constructed that it may be bent back to a much greater extent than is usual 'in temporary binders, thus allowing better access to the leaves which are held in the binder.

These and other advantages of my invention will be more apparent by reference to the accompanying drawings which show a preferred form of construction and in which:

Figure 1 is a plan view of the temporary binder with the various parts in position. Fig. 2 is an enlarged fragmentary end elevation showing the two binder members, the

leaves held therebetween, and the two covers of the binder. Fig. 3 is a view similar to Fig. 2 except that the upper cover and a few of the leaves are shown as bent back over the upper binder member. Fig. 4 is a view similar to Fig. 2, the main portions of the two covers having been removed to show the stiffening members which are used in connection therewith. Fig. 5 is an enlarged transverse section through one of the binder members. Fig. 6 is a reduced plan view of the sheet metal blank from which a binder member may be formed.

In the temporary binder of my invention an upper binder member 10 and a lower binder member 11 are employed, the upper member having the

caps

12 and 12 on its ends and the lower binder member having the caps 13, in a manner similar to that described in the application of Halpin, above mentioned. The lower binder member is provided with the sectional posts 14 which project upwardly through suitable apertures in the upper binder member 10. The leaves 15 are bound in position by locking the upper binder member 10 to the sectional posts 14 by means of rotation of the locking shaft having the rectangular end l6,this being accomplished by a suit able key 17 Each of the

binder members

10 and 11 are of the shape shown in Fig. 5. The two sides 17 and 18 are substantially parallel and are connected by the curved portion 19. From the side 18, the portion 20 extends in an oblique direction to the side 17, the edge portion 21 being bent so that it is parallel with and engages the side 17. The edge of the side 17 is folded in order to form the hinge pin socket 22, the edge of this socket Patented Mar. 5,1912.

engaging the edge portion 21, just -mentioned, and holding the same securely in position. By this construction it will be apparent that no seam is visible from the outside of the binder.

It will be understood that in the construction of the binder members the hinge pin sockets 22 are formed at intervals, blank spaces being left between adjacent hinge sockets. Such spaces are occupied by corresponding hinge pin sockets 23 on the stifiening members of the covers, and a suitable hinge pin 24 engages all of the hinge pin sockets, thereby connecting the covers with the binder members.

'As' best shown in Fig. 4, each of the

covers

25 and 26 is provided with a stifiening mem- I from which one of the

binder members

10 or 11 may be formed. The main body portion 29 is formed into the two sides 17 and 18, the curved end portion 19, and the obliquely disposed portion 20. portions 21 are indicated as occurring at intervals on the blank, whereas the hinge pin sockets 22 are formed from the projections on the blank and disposed opposite to the projections 21.

As most clearly shown in Fig. 3, the form of my binder member allows the leaves to follow the curvature of the cover when the same is turned back and to lie flat against the cover.

It will be apparent to those skilled in the art that considerable modification might be made in the form of binder member which made of a sheet of metal folded longitudinally to provide a pair of substantially par- The edge allel spaced walls, one of said wall sections being bent to contact along its edge portion with the opposite wall of the member, such latter wall being bent along its edge portion to provide a hinge pin socket and -to clamp between said socket and the wall said edge portion of the first wall, substantially as described.

3. A hollow temporary binder member comprising a single folded sheet of metal, provided with an integral hinge pin socket, and having a single joint concealed beneath said socket, substantially as described.

4. A hollow temporary binder member made of a single folded sheet of metal, provided with an integral hinge pin socket, and having a single unsoldered joint concealed beneath and maintained closed by said socket, substantially as described. 7

5. In a temporary binder, thecombination of a binder member having a hinge portion offset laterally from the surface of said member adapted to contact with the leaves secured in the binder, said member having an obliquely disposed surface extending from said hinge portion to said portion adapted to contact with the leaves, and a cover having a curved portion hinged to the hinge portion of said member, whereby in the open position of the binder the leaves are adapted to follow the curvature of the cover near the hinge and lie flat upon said cover, substantially as described.

ALBERT L. BUNGE. WVitnesses:

JOSEPH D. HUGHES, THOS. P. HALPIN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.