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Publication numberUS510350 A
Publication typeGrant
Publication dateDec 5, 1893
Filing dateMar 30, 1893
Publication numberUS 510350 A, US 510350A, US-A-510350, US510350 A, US510350A
InventorsJohn Lochmann
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
John lochmann
US 510350 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

(No Model.)



No. 510,350. Patented Dec. 5, 1,893.`


wAsmNewN, n, c,




SPECIFICATION forming part of Letters Patent No. 510,350, dated December 5, 1893.

Application led March 30, 1893. Serial No. 468,307. (No model.)

To all whom it may concern,.-

Be it known that I, JOHN LOCHMANN, a citizen of the United States, residing at New York, in the county and State of New York, have invented new and useful Improvements in Letter-Files, of which the following is a specification.

This inventionl relates to letter files and the object of the invention is to provide a letter le which is strong and durable and readily manufactured as set forth in the following specification and claims and illustrated in the accompanying drawings in which- Figure lis a transverse vertical section in the plane :I: Fig. 2. Fig. 2 is a plan view partly in section in the planeyy Fig. 1. Fig. 3 is a transverse vertical section of a modification the plane of section bein gindicated by the line Fig. 4. Fig. 4 is a horizontal section in the plane zz Fig. 3. Fig. 5 is a transverse vertical section of another modification, the plane of section being indicated by the line y y Fig. 6. Fig. 6 is a horizontal section in the plane z z Fig. 5.

In the drawings the letter A designates the front of the letter file and Bis the back having a suitable cover or closing tlap O. The bottom D is bent or creased at E E to form gussets in the usual way. The sides G are also creased to form gussets I aswell known. Into the gussets E Iare placed the partitions K. Each of these partitions is provided with one or more end flaps or Wings L secured to the sides G. These flaps or wingsl L are readily formed by securing to the partition K a strip M of muslin or equivalent material which extends beyond the partition so that its projecting end will form the flap L. In the example shown in Figs. 3 and 4 the strip Mis secured to one side of the partition K and its end flap L is fastened to the inner face of one of the side gussets I. Of course two strips M may be provided and one of them attached to one and the other to the opposite side of the partition.

In the example shown in Figs. 5 and 6 the strip M is lapped over the top edge of the partition K and pasted or fastened in place. The ends of the strip which project beyond the ends of the partition. form flaps L which are bent to one side and fastened tothe side gussets I.

In the example shown 'in Figs. l and 2 the strip M is lapped over the top edge of the partition K and its ends which project beyond the edges of the partition, are cut at the top so as to form two aps L one of which is fastened to one and the other to the opposite side of the side gusset I. By these means I am enabled to secure the partitions K irmly in position.

What I claim as new, and desire to secure by Letters Patent, is-

l. A letter file having a partition K" provided with a strip M secured to its side and forming a flap L adapted to be secured to the side gusset I substantially as described.

2. A letter le having a partition provided with a protecting strip lapped over `the top edge of the partition, the ends of the strip being left projecting to form flaps, said flaps being secured to the side gussets substantially as described.

3. A letter le having a partition provided with a protecting strip lapped over the top edge of the partition, the ends of the strip be ing left projecting beyond the partition and being cut or separated to form oppositely extending fiaps at the partition edges, said [laps being secured to the side gussets su bstantially as described.

In testimony whereof I have -hereunto set my hand in the presence of two subscribing witnesses.




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US4988038 *Sep 25, 1989Jan 29, 1991Masuhiro MitsuyamaDocument file
US5161731 *Aug 21, 1991Nov 10, 1992Esselte Pendaflex CorporationReinforced expandable folder
US5256130 *Mar 27, 1992Oct 26, 1993Esselte Pendaflex CorporationReinforced paper office supplies and method of making them
US5711750 *Jun 7, 1995Jan 27, 1998Smead Manufacturing CompanyReinforced expandable folders
US5720427 *Jun 28, 1996Feb 24, 1998The Smead Manufacturing CompanyReinforced expandable folders
US5806754 *May 21, 1997Sep 15, 1998Rock-Tenn CompanyNegative and photo holder
US8104669 *Feb 20, 2008Jan 31, 2012Smead Manufacturing CompanyStrengthened folder with inserted elements and system for element interchangeability
US20080197175 *Feb 20, 2008Aug 21, 2008Duane ChristensenStrengthened Folder With Inserted Elements and System for Element Interchangeability
Cooperative ClassificationB42F17/02