US476182A

US476182A - baker

Info

Publication number: US476182A
Authority: US
Publication date: 1892-05-31
Anticipated expiration: 1909-05-31

Description

(No Model.)

E. G. BAKER. TABLET DISPLAYING DEVICE.

110.476,182. Patented May 31,1892.

Witnesses. I raven/26011 NITED Strlrrnsl PATENT OFFICE.

ERI G. BAKER, OF LONVELL, MASSACHUSETTS, ASSIGNOR TO THE BAKER TELEPHONE INDEX AND TABLET COMPANY, OF SAME PLACE.

TABLET-DISPLAYI Ne Device.

SPECIFICATION forming part of Letters Patent No. 476,1`2, dated May 31, 1892.

Application tiled June 8, 1891,. Serial No. 395,461. (No model.)

To all whom t may concern:

Be it known that l, ERI G. BAKER,a citizen of the United States, residing at Lowell, in the county of Middlesex and Commonwealth of Massachusetts, have invented a certain new and useful Improvement in Tablet-Displaying Devices, of which the followingis a speciication.

My invention relates to tablet-displaying devices adapted to hold in a convenient forni a series of tablets or cards on which are written or printed lists of names, prices, or discounts, or other things, or written or printed indexes, and capable of being turned to bring any such tablet or 'card in sight of the observer.

In the accompanying drawings, Figure l is a front elevation of the device, omitting the tablets or cards, the bearing studs being partly in cross-section in the plane of the centers or hubs of the cylinder; Fig. 2, a plan of one of the hubs (the top of the lower hub or the bottom of the upper l1ub)and adjacent parts of the frame-wires; Fig. 3,a plan of the back board, the upper bearing-stud, the upper part of the cylinder, and the tablets or cards in position; Fig. 4, an enlarged horizontal section of the vertical part of one of the frame-wires, the groove-plate, and parts of adjacent tablets arranged in the grooves of said plate; Fig. 5, a plan of the bottom of the back board lower bearing-stud, the lower part of the cylinder, and the tablets or cards in position; Fig. G, a section on theline 6 6 in Fig.

2, showing a hub and adjacent parts of frame# w1res.

A is a back board, adapted to be secured by screws or nails to the wall of an office or room in which the device is to be used. B B are bearing-studs secured to the back board A and projecting horizontally therefrom in the same vertical plane with each other. The cylinder C, so called by analogy and not because it is cylindrical in a strictly geometrical sense, may be made of any suitable material, but, as represented in the drawings, consists principally of a frame-work of wires c, to which are secured groove-plates C', adapt ed to receive the edges of tablets o1' cards D. Said frame-wires chave vertical parallel parts c', arranged at equal angular intervals from each other and at equal distances from the axis of the cylinder C, said frame-wires c above and below `the vertical part c' being bent inwardly at Ac2111 radial planes nearly to the center of saidcylinder, and then at c3 bent away from the ends of the body of said cylinder parallel with each other and with the axis of said cylinder, the parts c3 entering ferrules c4 c5, to which said parts cS are soldered or secured bylfilling said ferrules with melted solder or other easily-fusible: and quickly-cooling metal or material. The ferrules c4 c5 serve asrhubs or journals which enter and turn freely in holes ZJ b inthe bearing-studs B B. v The intervals between the frame-wires c are maintained by brace wires or hoops c6 c7, soldered to the radial or nearly-radial parts or spokes c2 of said wires c, the upper one c6 of said hoops being somewhat smaller'than the circumference of the cylinder C in order not to interfere witl1\`V the placing of the tablets or cards D in the groove-plates C', and the lower one c7 of said hoops being arranged below the lower ends of said groove-plates `to serve as a support for said tablets or cards, and being preferably corrugated, as shown at o8 in Fig. 5, partly to improve the appearance thereof and partly to enable the cylinder C to be turned readily by placing the fin gers on said corrugationsm'hich extend outside of the tablets or cards, except at the groove-plates, to prevent soiling said tablets or cards by the fingers in turning the cylinder. The groove-plates C are strips of sheet metal, as tin-plate or sheet-brasa (best shown in Fig. 4,) each plate C' being attached at the middle by solder to the outside of a vertical part c of a frame-wire c, and on each side of said part c bent outward at c, and then inward at 010 between the bend o9 and the side edge of said plate C to form a groove ou, to receive one of the side edges of a tablet or card D. Each tablet or card is inserted in the top ends of a groove c11 of one groove- 95 IOO The tablets or cards are of any suitable sheet material, as paper or card-board, adapted to be painted or to be written or printed upon. The cylinder may be turned easily and quickly to expose each tablet to the same light or to show the tablets successively to thev observer without the latter changing his position. Upon the tablets or cards maybe written, printed, or painted ledger-page indexes, shipping-lists, address-lists, price-lists, discount-lists, or other tabulated or alphabetically-arranged information to which frequent reference needs to be made and which is usually arranged in book form.

The device is particularly useful as a directory of alphabetically-amanged names of telephone subscribers, and in any of the cases above referred to may be consulted in a small fraction of the time required in turn-` ing the leaves of a book and will always be found in the same place, while a book is frequently misplaced.

I claim as my invention- 1. The cylinder comprising hubs or journals, frame-wires secured to said hubs and having parts parallel with each other and with the axis of said cylinder, plates secured to said parallel parts of said frame-wires and having grooves adapted to receive tablets or cards, and brace-wires secured to said framewires to hold said frame-wires in their proper positions relatively to each other, one of said brace-wires being arranged nearer to the center of said cylinder than said plates at the top of said cylinder and the other of said brace-wires being secured to said frame-wires below the grooves of said plates to support such tablets or cards, as and for the purpose specified.

2. The cylinder comprising hubs or journals, frame-wires secured to said hubs and having parts parallel with each other and with the axis of said cylinder, plates secured to said parallel parts of said frame-Wires and having grooves adapted to receive tablets or cards, and brace-Wires secured to said framewires to hold said frame-wires in their proper positions relatively to each other, one of said brace-wires being arranged nearer to the center of said cylinder than said plates at the top of said cylinder and the other of said brace-wires being secured to said frame-wires below the grooves of said plates to support such tablets or cards, and between said plates adapted to extend beyond such cards to enable said cylinder to be turned by applying the lingers to said last-named brace-wire, as and for the purpose specified.

3. The cylinder comprising hubs or journais, frame-wires secured to said hubs and having parts parallel with each other and with the axis of said cylinder, plates secured t to said parallel parts of said frame-wires and having grooves adapted to receive tablets or cards, and brace-wires secured to said frame- Wires to hold said frame-wires in their proper positions relatively to each other, one of said brace-wires being arranged nearer to the center of said cylinder than said plates at the top of said cylinder and the other of said brace-wires being secured to said frame-wires below the grooves of said plates to support such tablets or cards and between said plates adapted to extend beyond such cards to enable said cylinder to be turned by applying the lingers to said last-named brace-wire, said last-named brace-wire being corrugated in order to be more readily engaged by the fingers, as and for the purpose speciiied.

In witness whereof I have signed this specitication, in the presence ot' two attesting witnesses, this 3d day of June, A. D. 1891.

, ERI G. BAKER.

Witnesses:

ALBERT M. MOORE, MYRTIE C. BEALs.