US1079372A - Changeable bulletin-board. - Google Patents

Description

1; TED STATES PATENT OFFICE.

ADOLIEH SPIELMANN, OIE CHICAGQILLINOIS.

CHANGEABLE BULLETIN-BOARD.

Specification of Letters Patent.

Application filed ovember 20,1911. Serial N 0. 661,388.

To all whom it may concern: 7 I I Be it known that I, AooLPH 'SPIELMANN, a citizen of the United States, Chicago, in the county of Cook and State of Illinois, have invented certain new and use ful Improvements in Changeable Bulletin- Boards, of which the following is a specification.

This invention relates to bulletin-board's and aims to produce a bulletin-board which will present a neat and pleasing appearance,

which will firmly and securely retain the like reference characters denote removable characters in position thereon and on which the characters can be readily,

and quickly changed, thus making the board useful'and desirable for hotel an-,

nou'ncements, train arrivals anddepartures,

telegraphic reports, base-ball score boards, store directories, or-announcements of any character.

The invention in one of its preferred and practical forms will be understood from the following description when considered in connection with the accompanying draw:

'ings throughout the various views of which similar parts. I 7

Referring. to .the drawings Figure ,1 is

a" front elevation partiallyin section of a' bulletin board embodying my invention. Fig.-2 is a transverse sectional view taken Fig. 3 is'a do tail perspective view of one of my improved on the line 2-2 of Fig. 1.

character bearing velementstFig. 4. is an enlarged fragmentary ilew SlIllllaI to' the .view shown in Fig.2 and Fig. 5 is a detail enlarged sectional View of one of my chan-,

nel-shaped members with the cloth cover: ingremoved.

Fromthe drawings it will be observed that the board comprises a frame having a back 5secured to top and bottom members 6 and 7 and end members 8 and 9, respectively, Within this frameis arranged a series of channel-shape members 11 prefering elements. In some instances'the chanresiding at sired instruction,

nel members ma PatentedNov.25,19 13.

be arranged one upon the other with t eir flanges adjacent and having no insertion or material between but in the preferred'form of my invention I .have covered each of the the flanges,

channel members with a piece'of textile ma:

base 152 face of each of the flanges-13. This textile covering terial 14, velvet being very suitable for the purpose, which covers the front face of the f and extends back over the 'outer may be glued or otherwise secured "if to the members so that all exposed portions are covered and two thicknesses 'of the ma- 1,76 cover ng 'not- 1 terial are present between each pair of adjacent flanges. The 'textile only adds to theattractiveness of the device by giving it a smooth and finished appear .ance but also forms frictional surfaces between (adjacentchann-el flanges to assist'm gripping and holding the, character bearing;

'elementsin position.

The character bearingelements, designated. generally by reference character 10, are formed from a single piece of material, preferably sheet-metal, which is folded upon itself so as to provide a flat forward face 15 reinforced at theback' by the fold'sd i and l7 and having a rearwardly proJectingextension 1'8 which is adaptedtobe inserted between adjacent flanges of the channel members and forms the supporting portion, 1

of the element. The flat forward face 15 of the element is'provid ed with anysuitable character such as a letteror figure, for in-- stance, and by selecting the proper elements them onthe board any deinformation or announcement may be speedily and'easily set up or presented The size of the board and the and positioning number of channel members can be varied,

of course, to meet therequirements of any particular locality or any use to which the board, may be put. a'nd it will be manifest that the number ref lines of information which can be set up and the size' of the announcement. is limited only by the size of the board and the number 'ing elements at hand.

By reason of the fact that'the channel men'ibers are made of resilientv material it will be apparent that the-flanges of adjacent members-cooperate to grip and hold the supporting portions 18 of the charactei ele- ,ments in position and the grippingaction of the flanges is further augmcnted by the textile covering applied to each member.

of character bear- The character bearing elements are accordingly gripped and held in position but,

. because of the resilient character of the channel members and the covering, they may be quite easily withdrawn from between the channel members by simply grasping the edges of the forward face between the fingers and exerting a slight pull. 'It will thus be obvious that the character bearing elements may be inserted and removed at will with very little effort and that when once in position they are gripped and held against accidental displacement. Y

While I have shown and described a pre-' ferred embodiment of my invention it :will be obvious that various changes in the size, shape, proportion and arrangement of the various parts may be resorted to Within the therebetween and having the said flanges extending rearwardly in said frame and pressed inwardly of the member into substantially parallel relation, and a plurality of character-bearing members each having a rearwardly extending projection adapted to be inserted between and retained by adjacent flanges of two channel-shaped members whereby the character-bearin elements are held in position.

2. In a changeable bulletin board, the combination of a frame, a series of channelshaped members having resilient flanges, the adjacent flanges of contiguous members being disposed in juxtaposition, the resilient flanges tending to diverge and each being held by the adjacent flange in substantially parallel relation, and a plurality of character-bearing members each having a rearwardly extending stem adapted to be inserted between and frictionally held by the adjacent flanges.

ADOLPH SPIELMANN.

\Vitnesses IRA J. VViLson,

HOLMES.

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