US693745A - Umbrella-tip. - Google Patents

Description

Patented Feb. I8, |902.

umBnELLA TIP. (Application led Apr. l1, 1901.)

(No Model.)

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Diarree STATES ATnNT OFFICE.

VILLIAM S. SEYMOUR, OI" PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO PENNSYLVANIA TUBE COMPANY, OF PHILADELPHIA, PENNSYLVANIA, AND CAMDEN, NElV JERSEY, A CORPORATION OF NEINr JERSEY.

UMBRELLA-TIP.

SEEGLEICAIIGN forming part of Letters 'Patent No. 693,745, dated February 18, 1902,

Application led April 11, 1901. Serial No. 55,366. (No model.)

To if/ZZ whom t may concern/.-

Beit known that I WILLIAM S. SEYMOUR, a citizen of the United States, residing in Philadelphia, Pennsylvania., have invented certain Improvements in Umbrella-Tips, of

which the following is a specification.

The main object of my invention is to finish the tip of an umbrella or parasol and to prevent the metallic tube which forms the stick 1o splitting or fraying.

A further object of the invention is to provide an additional shoulder or bearing to take the thrust of the tip-piece.

In the accompanying drawings, Figure l is a perspective view of a tip of an umbrella,

illustrating my invention. Fig. 2 is a perspective View of the parts detached. Figs. 3, 4, 5, and 6 are sectional views showing the different stages in the manufacture oi' my im zo proved tip. Fig. 7 is a side view. Fig. 8 is a section on the line S 8, Fig. 5, showing one form of tube; and Fig. 9 is a view similar to Fig. S, showing another form of tube.

In the manufacture of umbrellas and parasols, especially umbrellas, it is necessary that the tip or end oi the umbrella-stick should be made sufliciently strong to withstand the :rough usage to which it is subjected. Metallic tubes,\vhich are now universally used to form 3o the stick of the umbrella, are generally made with butt-joints, the seam being closed by brazing. This form of tube is shown clearly in the sectional view Fig. 9. Another form of tube for which I have obtained a patent is made by ceiling a sheet of metal around a mandrel, forming a tube, one layer overlapping the other, as shown in the sectional View Fig. 8. The butt-joint tube is liable to split at the end by the constant striking of the tip 4o in the use of an umbrella as a cane, and in the other ease the overlapping portion of the thin metal from which the tube is iliade may fray or become detached at the end from the same cause. The shoulder formed by the end of the tube is not sufficient to resist this pressure. By my invention I not only prevent a butt-joint tube from splitting' and a coiled tube from fraying by the use of a sleeve, but I also form a shoulder within the tube 5o which takes considerable of the thrust of the tip-piece, so that I am enabled to prevent injury to the end of the tube and at the same time give a finish to thc tip of the umbrella.

A is the tube, which may be either in the form of a butt-joint tube or a lapped or coiled tube 0r, in some instances, may be in the form ol'` a seamless tube.

l is the tip-piece, havingl a head Z) and a shank b. 'lhis shank snugly lits within the tube. D is a tapered fel-rule which lits over 6o the tip, as shown in the drawings.

In finishing a tip for an umbrellain accordance with my invention the shank b of the tip-piece B is placed within the end ot` the tube, as illustrated in Fig. Then the tube is swaged by the ordinary swaging-machine, so as to contract the end ot' the tube and force it tightly onto the shank b, as shown in Fig. 4. This swaging operation displaces the metal of the shank b', causing it to elon- 7o gate, as illustrated in said ligure, and the shank is made tapered, being smaller at the head than at the opposite end, so that after the swaging it is impossible for the shank to be removed. At this point the ordinary process of finishing an umbrella-tip stops, and it will be seen that the only resistance against pressure is the shoulder formed by the end of the tube, and if the jointofa butt-jointtubeis imperfect at this point it will readily split by 8o the constant blows against the tip, and in the case of a lapped tube the seam may open. I place on the tapered portion ofthe tip a ferrule D, as illustrated in Fig. 5. This ferrule extends only to the head of the tip-piece, so as not to overlap the head, and is of sufficient length to extend beyond the end of the shank h". The tip with the ferrule in position is then placed in a swaging-machine and swaged, so as to reduce the diameter of the ferrule and 9o again reduce the diameter of the tube, as Well as elongate the shank otA the tip-piece. By making the ferrnle longer than the shank and by swaging the fel-rule beyond the end of the shank I form a shoulder a directly back of the shank b by reducing the diameter of the tube, as it is free to be contracted, owing to the fact that the shank is discontinued. By

contracting the tube at this point I not only form a shoulder' to take the thrust of the tip- Ioo piece B in addition to the end az'of the tube, but I also form an additional shoulder at a2 by the ferrule D, which is swaged so that its outer surface will be even With the head b of .the tip. Furthermore, by swaging the entire ferrule I force the ferrule to displace the metal of the tube, so that its outer surface will be even With the outer surface of the tube, consequently making an even finish to the tip Without any shouldersv or projections exposed, and I provide anadditional shoulder within the tube at a' to take the thrust of. the tip-piece, and I also provide an additional shoulder at the end of the tube a2, as the ferrule as Well as the tube rest against the head of the tip-piece. Y

I claim as my inventionl. The combination of a metallic tube forming the stick of an umbrella, a tip-piece having a head resting against the end of the tube, a shank within the tube, andaferrule mounted on the tube, the ferrule and tip being secured l'ro the tube by swaging whereby the metal of the shank is displaced and the tube and ferrule contracted, substantially as described.

2. The combination of a metallic tube formingan umbrella-stick, a. tip-piece having a head and shank, the shank fitting Within the tube, the tube being secured to the tip-piece by swaging, and a ferrule mounted on the tube back of the head of the tip-piece, substantially as described. Y 3. The combination of a metallic tube forming an umbrella-stick, a tip-piece having a head and shank, the head resting against the end of the tube and the shank mounted within the tube, a sleeve mounted on the tube and extending beyond the end of the shank, the said parts being secured together by swaging so as to form a shoulder back of the end of the shank, said shoulder taking, with the end of the tube, the thrust of the tip-piece, substantiallyas described.

4. The combination in an umbrella-tube, of a metallic tubular stick, a tip-piece having a head and shank, the head resting against the end of the tube and the shank within the tube, a ferrule mounted on the tube and extending from the end of the tube to a point beyond the shank, the said parts being securedtogether by swaging so as to displace the metal ot' the shank and to contract the tube and ferrule, whereby a shoulder is formed back of the shank and the outer surface of the ferrule is on a line with the tip and the outer surface of the tube, substantially as described.

5. The combination in an umbrella-tip, of a butt-joint metallic tube, a tip-piece having a head and shank, the said shank being mounted Within the tube, a ferrule mounted on the tube, a shoulder Within the tube back of the shank of the tip-piece, said shoulder taking, with the end of the tube, the thrust ot the tip-piece, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of tWo subscribing Witnesses.

tVILLIAM S. SEYMOUR. Witnesses:

WILL. A. BARR, Jos. H. KLEIN.

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