US2115353A - Fastener - Google Patents

Description

April 26, 1938. w, w s 2,115,353

FASTENER Filed March 5, 1937 Patented Apaze, 193s 2,115,353

' uurrsn STATES PATENT oFFicE William tax-inlay. Chicago, Ill- Application March 3, 193", Stllli N- 128,880 $0181 (01. ll-415.1)

My inventionrela .to cylindrical holders on In the present instance, the wrapper for the which a sheet is wrapped and adapted to be used cylinder is intended to be used for purposes of or read as the cylinder is turned, and more parreference, the view of any portion of the sheet ticularly .to devices for fastening the-sheet to from the front being made possible by turning the cylinder, and my main object is to provide a the cylinder the proper distance. 'It is under- 5 fastener of this. kind which is of extreme simstood that with no friction or strain received by plicity. the sheet it is not necessary to have a very strong A further object of the invention is to design fastening means, and one will suffice which firmly the novel fastener in a single piece and for apholds the sheet to the cylinder in closely-wrapped 1o plication without the need of screws, nails, or form.

other accessories. In accordance with the foregoing, specific ref- A- still further object of the invention is to erence to the drawing indicates a fragment of a provide a fastener which requires a minimum suitable cabinet at It, in which the cylinder ii is amount of space for itself and leaves practically vertically mounted for rotation. Thus, the spin it the entire space around the cylinder for the sheet. dle Ha of the cylinder is receivable in an aper- An additional object of the invention is to so ture in a cabinet shelf Ila, while at the bottom construct the novel fastener that it is placed unthe cylinder is perforated to receive the lugs I der tension when in use, holding the ends of the of a bottom plate I! carried by a spindle it. The sheet firmly to the cylinder. latter is co-axial with the spindle Ho. and passes 90 An important object of the invention is to dethrough the bottom of the cabinet to receive a 20 sign the novel fastener for. easy application and knob I4. Between the plate I! and the cabinet removal, facilitating the mounting and removal bottom, the spindle l3 receives a compression of the sheet. spring l5. It will be seen that the cylinder may With the above oblects in view, and any others be rotated by turning the knob I4; and it may be which may suggest themselves from the descripg removed by pulling the knob down as indicated in 25 tion to follow, a better understanding of the nov- Fig. 2 to release the spindle Ila. from the shelf el fastener may be had by reference. to th aciila, enabling the cylinder to be lifted free of the companying drawing, in which lugs Ila and drawn out of the cabinet. This in- Flg. 1 'is an elevation, partly in section, of a stallationhas been shown merely for purposes .of cylinder installation showing the novel fastener example, and as a simple means to provide both a 30 1 place; turning and removing control for the cylinder,

Fig. 2 is a view similar to Fig. 1 showing the no novelty being claimed for the same. cylinder in a position to be removed from the The Sheet which 15 adapted to be pp place in which it is installed; around the cylinder is indicated at it, and for Fig. 3 is a top plan view of the cylinder, on an the present purpose the ends I60. thereof are 35 enlarged scale, showing the sheet fastened around b n in to app r as in Fi 6 when the sheet is the same; ready to be mounted. In the form shown in Fig. Fig. 4 is a view similar to Fig. 3, showing 3, the periphery of thecylinder is cut with a deep modification where the sheet is applied in seclongitudinal slot Nb. and when the sheet has tiong; been mounted as in Fig. 3 the ends lia seat in 40 Fig. 5 is an edge view, on an enlarged scale, th sl t in closely spaced relation. of the novel fastener; and The novel fastener is in the form of a long Fig. 6 is a perspective view of the sheet in postrip ll of spring metal, the strip being formed sition for application to the cylinder. with a series of shallow alternate bends I'Ia. One

Various means have been employed in the past end of the strip is made with a short lateral bend to secure a sheet around a cylinder, such as in "D having a slight inclination and terminating the case of fi r-sanding rollers, cylinders where with an outward curl llc. the sheet contains reference data, etc., the purwhen the sheet has been mounted on the cylpose being to both secure the sheet in closely inder as described above, the strip i1 is inserted wrappedform to the cylinder and render the fasbetween its terminal bends lia. by pressure tend- 50 tener releasable for the removal of the sheet ing to straighten the strip. This enables the in case it became worn or required replacement. latter to be fitted in the narrow space between However, the fastening means referred to have the sheet ends lia. However, the strip-isnow been more or less complicated and therefore not under tension and exerts pressure against the suitable for my purpose. ends "a to keep them firmly against the sides of the cylinder a chart to suggest a vertical and lateral tabulation of formulas or other reference data carried by the sheet. The modification of Fig. 4 shows that the cylindermay be grooved in three places instead of one, where sheet sections are intended to extend only part-way around the cylinder. Thus, the illustration shows each sheet section extending one-third-way around the cylinder. Obviously, fewer or more sheets could be used by further, and similar modifications of the cylinder. With the novel fastener applied at each junction of sheet sections, all may be firmly secured yet ually removable if desired.

It will be evident from the above description that I have provided afastener for the purpose ifled which is of extreme simplicity. of spring metal and placed under tension when applied, it will exert its hold on the sheet ends firmly and indefinitely without the use of any other means, and stay in place at all times. Being a. thin strip, it occupies but a slight amount individ- I 01 room, leaving almost the entire surface oi the cylinder to carry and display the wrapped sheet. The fastener therefore does not waste any sheet space and is highly eflicient in this and the other respects noted. The fastener bends Ila being rounded make it easy to press the fastenei in place and prevent the sheet ends from. being cut or torn. Finally, it will be evident that a fastener of this kind may be produced at trifling cos I claim:-

WILLIAM WALMSLEY.

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