US2053357A - Apparatus for making therapeutical appliances - Google Patents

Description

G. L. WINDER 2,053,357

APPARATUS FOR MAKING THERAPEUTICAL APPLIANCES Flled March 28 1934 nL/E'Tflbz? 55:75 E .L'MHUEE Sept. 8, 1936.

Patented Sept. 8, 1936 I I a I 'UETE STATES APPARATUS I FOR MAKING THERAPEUTI- CAL APPLIANCES George L. Winder, Cuyahoga Falls, Ohio, assignor to American Anode, Inc., Akron, Ohio, a corporation of Delaware Application March 28, 1934, Serial No. 717,763

4 Claims. (01. 18-41) This invention relates to the manufacture of Fig. 3 is a view showing an article made upon rubber articles of complicated structure such as the form of Fig. 2', with portions of the form being articles internally divided into channels for the stripped from within the article, and parts of the circulation of fluids therethrough and which are article being broken away to show more clearly Fries 5 particularly adapted for therapeutical use. the structure of the article. 5

A therapeutical treatmenthas been perfected Fig. 4 is a section taken on line l-4 of Fig. 3. which requires uniform application of controlled As one illustration of the apparatus of the heat or cold to the mucous linings of certain natpresent invention, the manufacture of a relatively ural bodily cavities. In the application of such long tubular applicator adapted for treating tutreatment, a hollow flexible fluid-tight applicator bular bodily cavities will be described, reference 10 is inserted into the bodily cavity to be treated being had to Figs. 1 through 4. In the manuand water or other fluid at a desired temperature facture of such an applicator, I provide a pair of is circulated through the applicator. For emsimilar mating rod-like form members l9, Hl each ciency and uniformity of heat transfer, it is depreferably having a-flat area ll extending 1on sirable that the water shall be caused to circulate gitudinallyv of the rod for a substantial distance, 15 throughout the applicatorand that the walls of and each preferably having a slightly raised flat the applicator shall be thin and preferably somecontacting surface 52 extending from the flat what elastic and distensible to provide for fitting area it to an end of the rod. Each of the rods the applicator to the irregularities of the cavity preferably is bent into an ogee curve in a direclining by distension of the applicator effected by Q away from t e t area a beginning internal fluid pressure. It is also necessary to the'margin of the aforesaid fiat area removed provide compact means for conveying water or from the contacting surface. The two rods then other fluid to'and from' the applicator. It is of are mounted in mating relation withtheir flat course also essential that the appliance shall be areas in. parallel slightly spaced apart relation- 5 of simple structure to permit easy and frequent ship, and with their contacting surfaces in inti- 5 cleaning and sterilization necessary as a consemate contact. This mounting may be accomquence of the nature of service to which the ap- P sh o en y by p ov a holder conpliance is put. sisting for example of a rectangular metallic bar As a material for making such appliance, rubl3 provided with a long supporting handle I4 ber meets the requirements as to fluid impermeand having a pair of holes l5, l5 adapted to 30 ability, elasticity, flexibility, sanitary qualities, receive the n n-Co tac ends of the W T0615, etc., but ordinary methods of rubber manufacthe two holes being so spaced that when the rods ture are not adapted to produce the unusual, freare inserted therein in the mating relation dequently small, and somewhat complicated strucscribed, the contacting surfaces at the opposite tures required in appliances which must conform ends 01 t e rods Wi e urged against each Other 35 in shape to natural bodily cavities such as for with sufficient pressure to tension the rods and example the small tubular nasal and ear pasmaintain them in the desired position. The assages, the urethra, etc., and which at the same sembled apparatus, preferably with the contacttime must be constructed to provide for the ciring ends of the rods pointing upward, is imculation of water through all parts thereof. mersed in a liquid dispersion of rubber l6 such 40 Accordingly the chief object of this invention is as compounded natural rubber latex'contained in to provide an efficient and economical apparatus a tank W, and a uniform relatively thin coating for making rubber articles of complicated and of rubber is deposited over the entire form, and unusual structure of the type indicated above. within the open Space between the flat areas of Other objects will be apparent from the followt e rod e t r by Simply pp th o m nto 45 ing description of the invention as applied to the the dispers o One more times y ac ermanufacture of several related types of theraating th normal deposition using a y of the well peutical appliances. known methods of accomplishing such results. Of the accompanying drawing, Then preferably, although not necessarily, the

Fig. 1 is an elevation of apparatus, in a disform is raised (as indicated by the dotted outline 50 assembled state, for forming a rubber article. in Fig. 2) until the liquid level of the dispersion Fig. 2 is an elevation showing the apparatus of strikes the form. at a point slightly above the Fig. 1 assembled to provide a form and a support point of convergence of the curved rods, and the therefor, and showing the form immersed in a deposition is continued, or the lower portion of 5 liquid dispersion of rubber. the form is redipped several times to build up upon the lower .or diverging portions of the rods a coating of rubber considerably heavier than the initial coating covering the entire form. The composite coating then is dried and vulcanized. Thereafter, the rubber covering each of the two rods is cut at a point just above the rectangular supporting bar, the rods are removed from the holes in the bar, and each of the separate rods' integral diverging connecting tubes 2|, 2|. for

conveying water to and from the applicator. Such an appliance is described and claimed in the copending application of Raymond W. Al'- bright, Serial No. 717,943, filed March 29, 1934.

It will accordingly appear that I have provided a simple apparatus for making articles of unusually complicated structures such as are required in therapeutical appliances of the type described, although'the apparatus is by no means limited to the manufacture of such appliances and may be used in making articles for many different purposes where similar structures are required. 7

The term liquid dispersion of rubber has been used in a broad sense to include flowable dispersions of caoutchouc, balata, gutta percha, synthetic rubber, and like materials, whether dispersed in an aqueous vehicle as in natural latex and in artificial aqueous dispersions, or in a nonaqueous rubber solvent vehicle as in rubber ce ments. The dispersions may be concentrated, diluted, thickened, thinned or otherwise preliminarily treated and may contain any desirable compounding ingredients such as fillers, pigments, vulcanizing agents, age-resisters, etc.

- tionshipwith each of the said contacting surfaces in intimate contact with a like surface of another forming member. o

2. Apparatus for making a rubber article from a liquid dispersion of rubber comprising a plurality of rods, each having a protruding contacting surface occupying a minor portion of the length of the rod, and supporting means for mountingthe rods in parallel slightly spaced apart relationship with their contacting surfaces in intimate contact.

3. Apparatus for making a rubber article from a liquid dispersion of rubber comprising a pair of mating rods, each having a fiat area extending for a substantial'portion of the length of the rod and a protruding contacting surface occupying a minor portion of the length of the rod, and supporting means for mounting the rods with their fiat areas in parallel slightly spaced apart relationship and. with the contacting surfaces in intimate contact.

. 4. Apparatus for making a rubber article from a liquid dispersion of rubber comprising a pair of rods, each having a protruding contacting surface occupying a portion of the length of the rod, and supporting means for mounting the rods in parallel slightly spaced apart relationship with their contacting surfaces forcibly urged into inti- 40 mate contact.

GEORGE L. WINDER.

Images