US1924426A - Paper umbrella - Google Patents

Description

S. 2. WILLIAMS PAPER UMBRELLA Aug. 29, 1933.

Filed May 13 1932 IN V E N T O R felww Z. M700:

ATTORNEY! brella structure;

Patented Aug. 29, 1933 1,924,426 rAPER UMBRELLA" I Seaborn Z. Williams, Tilleveland, Ohio Application May 13, 1932. Serial No. 611,054

"14 Claims. (01 3mm "This invention relates to umbrellas and more particularly to atype thereof so inexpensive that it may be discarded, once used. The general objects of the invention are thus'indicated. 5 The invention" contemplates; as a further object, a construction entirely, or substantially so, of paper or equivalent similar material, andto this end the invention includes numerous devices by which the material is employed in the um- I The exact nature of this invention together with further objects and advantages thereof will be apparent from the following description taken in connection with the accompanying drawing, in which Figs. 1 and 2 are side andbottom views respectively of an umbrella embodying the invention,shown in extended form, with parts broken away to show details of construction; Fig.3 is a sectional view of the same asin the plane of line I 3-3, Fig. 2, and including dot-dash lines to indicate the manner of folding or closing the um- 4 brella; Fig. 4 is an enlarged detail in section illustrating, as a typical joint, that between a rib and its cooperative structure. I y l With reference now to the drawing it will be apparent that the principal parts and their gen eral disposition follows the contemporaneous art; the umbrella including a flexible cover and a collapsible and extensible frame therefor.

The principalparts of the frame are a stem, spindle, or handle 1, a plurality of ribs 2 swingably connected with the end of the spindle, a sleeve 3 slidable along the s'pindle, and for each intermediate the ends of the latter, the strut having flexible connection with those partswhich it connects; so that, as in the ordinary umbrella, and-as indicated Fig. 3, sliding motion of the sleeve 3along the spindle ,1 will adjust the ribs 2 between extended relation and closed position wherein the ribs are alongsidethe spindle.

According to this invention the enumerated frame parts may all be of roller paper or the like.

The spindle 1 has a suflicient number of convolutions to give it the necessary strength for supporting the other parts of the umbrella, serving as the usual handle therefor. It is prefer ably hollowas indicated Fig. 3 and 'is also preferably tapered, being larger at its upper end, that of the spindle 1 overlying the latter-as indicated rib 2, a strut 4 joining the sleeve 3 with the rib wherein either there aremore convolutions at oneend than at the otheras by the employment of .a triangular sheet of paper, or the convolutions at oneend are of greater diameter than at the other end of the spindle, as by the employment of a long strip of paper.

Each rib 2 "is also formed of a roll'of paper, so formed that its se'cured end has fewerconvolutions than its intermediate part, or than its outer end as indicated in the drawing;- and the thick- 6 ness of the roll is reasonably slight relative to the size of the hollow therewithin sothat the. ribs are light in weight. Each rib-isfiattened at its thin end, therebent'back, and secured to the large end O at 5, Fig. 3. All ofthese rib ends 5 maybesimi- 7 larly and'simultaneously secured as by a roll 6 of paper, turned about the rib ends, suitableadh'e- 'sive being applied to allof the partsto-maintainz their assembled relation; p 7

Thus each rib has .in effect a hinge connection with the spindle l flexible owing to the thinness of the attached rib end, the rib'body part, however, having rigidity owing to its tubular form.

Each. strut 4 is so rolled, a'sindicated in the go' drawing, that its ends are thinner than its intermediateportion which consequently has the V greatest strength. Both ends of each strut are flattened and bent as already described for the ribs. One end of each strut is overlaid upon its rib and there bound as at 7,-the other end being secured to the sleeve 3 as indicated at 8 and generally followingthe manner of securing the ends of the ribs. The body or innerpart of the sleeve 3, towhich the struts are secured, .may' comprise apreviously prepared roll of-paper, of such inner diameter that it will frictionally engage and thus be self-maintaining in position upon the spindle 1 when the rib and strut parts are spread as shownFigs. 1 and 2. .Of course the sleeve is freely slidable upon the spindlebelow the point thereon where it binds, so-that the rib and strut parts maybe collapsed: as indicated in broken lines Fig. 3.

The cover 9 for the frame comprises a circu- 0 lar sheet of oiled or otherwise waterproofed paper, uninterrupted by anyopening. It has two .folds 10 along radial lines as indicated Fig. 2

whereby when the frame is opened the cover will stretch to agenerally circular but slightly conical form.

It is contemplated that the. cover be printed upon to bear advertising or decorative display it matter. The printing is'done with the-paper flat and with due regard for the-two folds-10 to U tubular form and consequent rigidity.

2. In an umbrella frame, a pair of cooperative members, one of said members comprising a roll of paper flattened at its end and there secured rib comprising a roll of paper having itsv end to the other member whereby said first member has a rigid body part flexibly connected with thesecond member.

3. An umbrella frame member comprising a roll of paper-tapering toward its end and there flattened to allow flexure as in a hinge, and elsewhere having tubular form and consequent rigidity.

4.An umbrella frame member comprising a roll of paper, having more convolutions elsewhere than at an end, and at thelatter flattenedand bent to be secured to another frame part overlying the latter, whereby said member will be rigid up to said bend and flexible at the latter.

; 5. In an umbrella frame, a pair of cooperative rib and strut members each comprising a roll of paper, said strut member having its end flattened and secured to said rib member overlying the latter intermediate the ends thereof to provide a hinge relation between the parts.

6. In anumbrella frame having sleeve and rib parts, a strut member joining said parts and comprising a roll of paper flattened at itsends and there bent to overlie said parts and secured to the latter. a

7-. In an umbrella frame having sleeve and rib parts, a strut memberjoining said partsand comprisinga roll of paper flattened at its ends and there bent to overlie said parts and secured to the latter, said roll having maximum thickness intermediate its ends to provide maximum rigidity for its intermediate body portion with maximum flexibility at its joints.

8. In an umbrella frame having sleeve and rib parts, 'a strut member joining said parts and comprising aroll of paper flattened at its ends and there bent to overlie said parts and secured to the latter, said roll having maximum thickness intermediate its ends and tapering toward the latter, I I t 9. In an umbrella frame having a spindle, a rib comprising a roll of paper flattened at its end and there joined with said spindle, and elsewhere having tubular form.

10. In an'umbrella frame having a spindle, a

flattened and secured to said spindle overlying the end of the latter, the body part of said rib being bent back over said end. 7 1

11. In an umbrella frame having a spindle, a rib comprising a 'roll of paper having more convolutions elsewhere than at an end, said end being flattened and therc joined withv said spindle, and said roll elsewhere having tubular form 12. In an umbrella frame having ribs and struts, a spindle, said ribs being secured to one end of said spindle, a sleeve movable along said spindle, said struts joining said sleeve with said ribs, said spindlecomprising a roll of paper with diameter increasing toward its rib end, said sleeve being adapted to frictionally engage said spindle to secure said ribs in spread relation.

13. In an umbrella frame, a spindle, and-a plurality of ribs-associated therewith at the end of the latter, each rib comprising a roll of paper fiattened'at its end, the ends. being bent under and secured to' the spindle end overlying the latter. 4

a 14. An umbrella frame member of paperrolled to provide a typical transverse section of circular characteristic, and consequent rigidity, said member being flattened at its ends to there provide flexibility.

SEABORN z. WILLIAMS.

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