US67405A - Improvement in umbrellas - Google Patents

Description

i @uiten tetes -getraut @time t JOHN BROWN," OF NEW YORK, N.- Y., AssieNO-R TO WILLIAMV r. `BROWN,

' OE THE SAME PLAGE.

Letters Patent No. 67,405, dated August G, i867.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, JOHN BROWN, of the city,- county, and State of New York, have inventeda certain new f and useful Improvement on Umbrella or Parasol Covers, of which the following a flill,V clear, and exact description, reference being had to the accompanying drawing, forming part of this specification, and in which- Figure 1 represents a skeleton plan, partially filled up, of an umbrella cover or web forming the same, made according tomy improvement.

Figure 2, a similar view or inverted plan of a section of the same, in illustration of the pockets which hohl the ribs; and d Figure 3, a transverse section in further illustration of the same feature.

Like letters indicate corresponding parts.

The nature of my improvement in umbrella and parasol covers consists in so'weaving the cover, by giving it fullness whererequired and a taper orcontraction where necessary, as that on the web being taken from the loom and its ends united it, the web, is, without cutting, of the required shape of the cover und' free from wrinkles.v My invention also further consists in Weaving pockets into or with the web that forms the cover for the accommodation of the ribs of the parasol orumbrella.'

The web lmay be wove in various ways, but I propose generally to weaveit in a straight loom, in which ease, toeffect lthe production of the web, (which may be made of any suitable fibrous materiah) so that, as it comes from the loom, it will, on `joining its ends, be of the required shape of the cover, the warp-threads are contracted from one nselvedge, which forms, the margin of the cover, to the other' selvedge which forms the centre ofthe cover. To proportion the quantity of weft or filling to the irregular lengths of the warp, the harness motion should `be suitably controlled by a jacquard machine, or other means, to open a greater or less l width of the warp for thel successive picks of weft, and the tal e-up roll or mechanism should be of suitable form or construction to take up the, greater length of one selvedge and the lesser length of the other, and the proportionally varying lengths of the intermediate parts of the warp.

In the accompanying drawing, A is a web or portion of a web as it is delivered from the loom, and in which r it will be Observed that the warp-threads a are longer at the selvcdge S, which constitutes the outer margin of the cover, and gradually or successively shorter towards the othervselvedge t, which forms the centre, said warpthi'eads being drawn up, or the web made to assume the required shape by the weft or filling, the threads b ot' which are run or arranged to form a series of nearly radial, gore-like divisions, B, between each one of which the intermediate weft-threads are varied in length, preferably in regular order, cach one, successively, first running across the web, and then the next thread a less distance, the next a still less one, and so on, and after i wards gradual-ly or successively increasing in length, substantially as represented in iig. lrlof the drawing. The web thus formed may be taken from the loom and its ends joined, thereby producing a web of the required fullness, at or towards its one edge, to form a parasol or umbrella cover, free from wrinkles, and without the multitudinou's seams necessary in such articles, according to the ordinary mode of forming the covers, and which r are not only unsightly, but liable to rip or burst.

Furthermore, I secure and conceal the ribs of the umbrella or parasol on the inside of the clover, by weaving at the required distance apart, in a. manner well known to Weavers, double portions or pockets d, into or with *F the web, into'which the ribs are itted, which provision for the ribs adds both to the neatness and strength of the article.

Although I propose generally to weave the Whole cover in one piece, it might be woven in a similar manner in two or more pieces, with the requisite fullness, and these pieces united by two 0r more seams; and I theret fore wish this latter method to be considered as embraced within the scope of my invention.

What I claim as my improvemenhand desire to secure by Letters Patent, is,- A woven-umbrella or parasol cover, having pockets for the ribs woven into or with the web of which it is r formed, essentially as herein set forth. i

JOHN BROWN. Witnesses: i J. W. Ooonns,

G. W. REED.

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