US726357A - Dress-shield. - Google Patents

Description

No. 726,357. PATENTED APR. 28, 1903. F. A. SCHULTZ.

DRESS SHIELD.

PPPPPPPPPPPPPPPPPP N315, 1901.

UETTEE STaTEs PATENT OEETEE.

FREDERICK A. SOI-IULTZ, OF HASBROUOK HEIGHTS, NEIV JERSEY, ASSIGNOR TO MATTSOIT RUBBER COMPANY, OF NEIV YORK, N. Y., A CORPORATION OF NE IV YORK.

DREfiS Sl-HELD.

SPEGIFEGATION forniing part of Letters Patent No. 726,357, dated April 28, 1903.

Application filed June 15, 1901.

T (ZZZ whom it may concern:

Beitknown that LFnnnnnion A. SCHULTZ, a citizen of the United States, residing at Hasbrouck Heights, in the county of Bergen and State of New Jersey, have invented a certain new and useful Improvement in Dress- Shields, of which the following is a description.

My invention relates to improvements in seamless dress-shields of rubber or other suitable material. At the present time it is the practice in the manufacture of these articles to either out out the shields from separate sheets of raw or unvulcanized rubber and r5 subsequently apply pressure adjacent to the armpit-curves of several pairs of the blanks thus formed, after which the shields so produced are vulcanized, or else to effect the binding of the sheets at the armpit-curves 2o simultaneously with the cutting of the same. The resulting articles will be formed with a seam at the armpit, which is a source of weakness. It frequently happens in the manufacture of the shields that the sheets vary slightly in thickness at different points, due to imperfections in the calendering operation, so that in the application of pressure to effect the seam at the armpit-curves the thinner portions of the sheets do not effectively adhere together, thereby resulting in animperfect seam. Another defect frequently encountered in the carrying on of the priorprocesses has been due to the fact that the powder with which the sheets are coated to pre- 3 5 vent them from sticking together in the raw state tends to prevent the formation of a perfoot and coherent joint at the scam, in consequence of which the proportion of shields to be rejected is increased. With prior proc- 0 esses it is also the practice, after the shields have been vulcanized, to trim the edges to the desired sizes. Hence the rejected scraps will be vulcanized, and consequently of little value in comparison with that of raw or uncured rubber.

The object of my present invention is to produce a dress-shield of rubber or other suitable mat-erial which shall be free of all seams and joints and in which the material at no part will be in a distorted or stretched con- Serial No. 64,644. (No model.)

dition. Myimproved dress-shield when made of rubber in an unvulcanized condition will be also of such a construction that it may be readily trimmed to any desired size, permitting a trimming in the raw state and securing in this Way scraps which are unvul- ,canized, and hence of the maximum value.

Myimproved shield is preferably corrugated to increase its capacity for radiation, so that the resulting article in its preferred form will be very much cooler and more comfortable than shields of analogous types at present on the market.

In order that the invention may be better understood, attention is directed to the accompanying drawings, forming part of this specification, and in which- Figure 1 is a side view of the preferred former employed in the manufacture of the shields; Fig. 2, a section on the line 2 2 of Fig. 1; Fig. 3, a section on the line 3 3 of Fig. 1; Fig. 4, a corresponding section illustrating a modification in the arrangement of the corrugations on the former, and Fig. 5 a perspective view of the complete seamless rubber dress-shield in its preferred form.

In all of the above views corresponding parts are represented by the same numerals of reference.

1 represents a former made of any suitable material, having an armpit-curve at its upper end and of any desired form on its outer edge. This former is operated in any suitable wayas, for example, by a rod 2. On each side the former is provided with guideslots 3 3, extending from one end of the armpit-curve to the other and corresponding to the several standard sizes in which the shields are made. Preferably the formers are vertically corrugated, as shown at 4. These corrugations may oppose each other, as shown in Fig. 3, in which case the resulting shield will be formed with opposing flutes, or the corrugations may coincide with each other, as shown in Fig. 4, in which case the two sides of the resulting shield will extend substantially parallel, as will be understood.

In manufacturing my improved dressshield I proceed substantially as follows: A suitable solution, formed by dissolving pure rubber or other material in a suitable solvent, is sustained in any desired tank or receptacle and the former 1 dipped therein with the armpit-curve downward. The former is then removed and the solvent permitted to evaporate, leaving a thin film or pellicle of rubber or other material on the former. This operation is repeated until a layer of sufficient thickness is obtained. By means of a knife or other instrument the-resulting shield will be out along the line of one of the guides 3 to the desired size, after which the film or pellicle is peeled off of the former and the shield,

if made of rubber, is then vulcanized, or the vulcanization may be performed while the film is adhering to the former. The resulting article; is then covered in the usual way with the desired fabric. My improved shield will obviously be formed with corrugations 6, corresponding to the corrugations 4. At the armpit-curve the shield will be entirely continuous and free of anyjoints or seams, while at all parts the shield will be free of stress or tension.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is as follows:

1. An improved blank for dress shields comprising uncured rubber or other suitable material in continuous dress-shield form, provided with markings thereon indicative of a plurality of sizes and along which the blank may be cut to form a dress-shield of the desired size, substantially as set forth.

2. As a new article of manufacture, a seamless dress-shield continuous at the armpitcurve, free of seams and joints, and with none of its portions in a condition of stress or tension, and curved markings formed in the shield extending from one end of the armpitcurve to the other, substantially as set forth.

This specification signed and witnessed this 10th day of June, 1901.

'FREDERIOK A. SCHULTZ.

Witnesses:

J NO. R. TAYLOR, AROHIBALD GRAY REESE.

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