US1987012A - Sheet fastening device - Google Patents

Description

Jan. 8, 1935." w. w. KARLEN SHEET FASTENING DEVICE Filed March 19, 1954 INVENTOR.

ATTORNEY.

Patented Jan. 8, 1935 l UNITEDSTAT ES;

. -.-SHEET FASTENING D V I Ka as. i s

. mannerisms. 1934-. saltwater c1. ma -25);,

"The principal object er ymvention s to provide a sheet fasteningfdevicethagt'iscapble of holding two sepame 'groups-ofsheets'. 1 ffA further object {of thisinvention is toprovide a'sheet fastening device adapted for use in combination with the ordinary'folder having a center fastening tang flap that" permits the; tang of the folder to be comparatively narrow in width, thereby reducing the combined thickness or the folders when 'in -their-flle cabinet A stillfurtheryobjebt of "my inventionis to provide a' sheet fastening "and holding' clasp for use in connection with folders having a central fastening tang-flap that permits the securing of'the claspelement en; the 'iiapf'of the folder withoutdangeri of the claspelement "becoming aenae tanytomtn gerrom. 1 1 A- still further object of my invention is to provide a sheet astenihg'fdeviceithat is stamped from, a singlesheet of m "trial fj r A still further' object-of this invention isto provide a sheetjfas'tenihg" devicethat is economie ahdjgiurable use. i

"objects will be apparent to those skilled in the art.

My invention consists in the construction, arrangement and combination of the various parts of the device, whereby the objects contemplated are attained as hereinafter more fully set forth, pointed out in my claims and illustrated in the accompanying drawing, in which:

Fig. 1 is a bottom plan view of my sheet holder secured to the ordinary tang flap of a folder.

Fig. 2 is a front marginal edge view of my device secured to a folder and showing the sheet receiving positions of the four arms in dotted lines.

Fig. 3 is a top plan view of my device secured to the tang flap of a folder.

Fig. 4 is a bottom plan view of my sheet securing clasp after it has been stamped from a sheet of suitable material and before it has been bent and folded.

Fig. 5 is an end view of my device taken on line 55 of Fig. 2, and more fully shows its construction.

Referring to the drawing, I have used the numeral to designate the ordinary paper or like folder to which my device is secured. This folder 10 is folded back upon itself near its center and then reversely folded to form the usual center tang flap 11, the folds of the flap preferably being secured together. In the art it is the practice to secure the sheet attaching fasas shown; in? Fig-1.4..

tener to this flap 1 and device is no=exception to this practice; as will be noted in the drawing. The elongated base portion of my device is designate'd by the numeral 12. Thisportion before bending and as shown injFigawi'l, isof flat rec- 5 tan gulan-cfin'struction. "-flhe' numeral's l 3 and I designate two comparatively short} clfamping tongues integrally farmed thetwo ends respectively of the portion 12. These two tongues extend opposite 1! directions froin -each -other and are located in a .plane near..;.the. inner o'r"rar sideedge of the porti0n. .:12; The.numerals':-15-and'16 designat'e, .two comparatively long; arms integrally formed on:-the two endsmespectively ofthe base 15- portion 12. The two arms extendnin" Opposite directions from; each oth er. and. are, located in s plane m n-t 39 i? i fi k g P th r i n 1 2an d beforethesam ben :onto the folder,

Thefhuxneralsl'li n designate two arms similar tofthejjarms' 15 d which are also e ra y arme n the two. nds i n v' l of the base'portion'l'l' These 'arm'sare parallel with the arms 15 and 16 and are positioned in spaced relationship between the arms 15, 16 and the tongues 13, 14. This sheet fastening device, as shown in Fig. 4, is made of any suitable material such as bendable sheet metal, and after being stamped out as shown, is ready to be attached to the tang flap 11. To accomplish this the tongues 13 and 14 are bent'at right angles to the base 12 and are inserted through the two spaced apart slots 19 in the tang flap 11, after which they are clinched inwardly to a flat condition, as shown in Fig. 3, thereby rigidly securing the base 12 to the under side of the tang flap. The slots 19 should be in close proximity of the base folds of the flap 11, as shown in Fig. 1,'in order to eliminate any possibility of the metal sheet holder being torn from the folder by usage. This desirable securing of the sheet holder a substantial distance from the free marginal edge of the flap 11 is possible by the construction of my device.

The width of the base 12 relative to the flap 11 when the two are secured together should be elements there are two arms (17 and is) for securing sheets below the flap 11 and two arms (15 and 16) for securing sheets above the flap 11. To attach the sheets which are usually sheets of paper with indicia thereon, the arms are bent outwardly from the flap 11' as shown in dotted lines in Fig 2, and then are again bent downhighly desirable one andthat the folder will lie bent back upon itself and then reversely folded flat and compact, thereby conserving space the file cabinet. By the tongues 13 andI4-engaging the flap 11 near its secured edges the flap may. be of minimum width, which is not possible in other devices of this class the 7 general public. a Although I have described my device as 'usd' in combination with folders having attachingtang fl s; it m y, be u co sstullx mo her. set-stun Some changesmay be made in-the construction and arrangement, of my'improved sheet fastening device, without departing from; the meal spirit ,and' purpose of my invention, and it is myintention to cover by my claims :any -modi fled formsyof structure or useof mechanical equivalentswhich may be reasonably included within theirgscope'.

a li ...t

1. In a device-of theclass described, arectan? gular base member bent-,uponitselfq-to-form a lower and an upper portion two; arms on the said upper portion, two-arms -onthe i said lower portion, and two attaching tongues on 'the 5 said lower portion. ,1 2. In "combination-"with "a folderor-tl ie'like bent back upon itself and theri rvqse1y 1o1aai to form a tang flapja'. base merr'iberjiiolded on rid around the free marginal edge'of saidr t anlg'i flap? a means for 'rigidly e 1 e 1 flaatand rmssewedt t at-nor onb t a ab se tank flap, arms secured to that p 'on,of base thatis onthe upper/ side ffsa I flap;

arms secured to that portion of said base that is on the under side of said flap. I

3. In combination with a folder or the like bent back upon itself and then reversely folded to form a tang flap, a base member folded on and around the free marginal edgeof said tang flap, tongues on said base and extending through said flap for securing said base to said tang flap, arms secured to that portion of said base that is on the upper side-of saidflap; and armsosecured to that portio'n of said 'base that is on the under side, of said flap.

4. In combination with a folder or the like team ata'r i g flap, a base member folded on and -P4'p l it lie flree marginal edge of said tang flap, "two fastening tongues on the portion of the'base' member" resting below the said flap and extending through said flap for securing said base. to said 'flapf'and two spaced apart arms on the part of 5; In combination with ajfolder or thelike back u n el and t rr er f de W fizWHE-MR wa ebe ifQlded me d $9 the free marginaljledgeof said tangflapyfastening ,tongues t on the portion of said.- base member below said flap extending through said flap and positioned a substantial distance from the free base member on jsaid flap; arms-secured to that e i n-Lqitsei base th is e melides! d,

that is on the ore es ta id b i aid 1.1m-

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