Патент USA US2137468код для вставки
Nov. 22, 1938. |-|_ w, WALTERS LIFESAVING APPARATUS Filed Nov. 8, 1957 ‘ 2,137,468 Patented Nov. 22, 1938 2,137,468 UNITED STATES ATENT OFFICE 2,137,468 LIFESAVING APPARATUS Henry W. Walters, Jacksonville, Fla. Application November 8, 1937, Serial No. 173,492 1 Claim. other cells. proved buoys whose buoyancy is maintained even less cylindrical and lie at right angles to the lon when they are battered or punctured. The pres 5 ent application is a division of my pending appli cation Serial No. 116,607 ?led December 18, 1936, and provides improvements in the buoys patented by me on January 10, 1922, No. 1,403,362 and on August 4, 1936, No. 2,050,138. Further objects 10 and advantages of the invention will be under stoodlby referring to the accompanying drawing forming a part of this speci?cation, in which-—~ Fig. 1 is a perspective view of a buoy made in accordance with the invention; 15 (01. 9-8) This invention relates to life saving apparatus and among other objects, aims to provide im may pass to hold each cell properly relative to the The cells l6 preferably are more or gitudinal axis of the buoy as shown in Fig. 2. However, the cells located within the conical end portions II have frusto-conical outer walls, so as » to ?t snugly against the inside walls of said end portions II. It will be clear that the described buoy may be subjected to considerable abuse and may be pierced at a number of points, without 10 losing more than a small fraction of its buoyancy. Buoys are often used on nets or lines surrounding bathing areas and when so used, are quite con the walls broken away to show the interior con spicuous objects and attract the attention of mis chievous and thoughtless persons who like to em ploy the buoys as targets for pistol and ri?e prac struction; and ' tice when there is no guard or officer in sight. Figs. 3 and 4 are perspectivewiews, with parts broken away, showing two forms of buoyant cells Thus, the described buoy will be, quite useful at public bathing beaches and wherever life saving Fig. 2 is an elevation of the same with some of - “ 20 which may be employed in the buoy of Fig. 2‘. Referring particularly to the drawing, there is shown a buoy which is generally similar to the buoy disclosed in the aforesaid Patent No. 2,050,138, comprising a hollow preferably metallic 25 shell having a cylindrical body portion Ill and two apparatus may be used. 20 The hollow cell of Fig. 3 is preferably made of some light, non-rusting metal such as copper, duralumin, aluminum, thin steel plate (tin, chro mium, etc.) or the like. Instead of a metal, some synthetic plastic such as Celluloid, Pyralin, Tenite, conical end portions H. Preferably a rod l2 ex tends axially through the buoy with its ends ter minating at the ends or apices of the conical end portions ll. Rings I3 are preferably secured to Ameroid, Alladinite, Bakelite or Catalin may be the ends of the rod l2 and a rope I 4 is passed plastic synthetic material forming the covering l9 to provide a hard, tough, durable, waterproof pro tective covering. If preferred, the hollow cell of Fig. 4 may be made of vulcanized rubber, that is, through the rings I3 and also through loops l5 which are welded or otherwise secured to the sides of the buoy. The rope l4 preferably passes around the entire length of the buoy on each side thereof and provides a convenient means which may be grasped by a person swimming in the water. While the described buoy may be hollow, this is a disadvantageous construction if the buoy should be pierced or have its walls broken, because even a small hole will cause the buoy to be ?ood employed. The hollow cell of Fig. 4 has a hollow internal member is coated or otherwise covered with a an outer heavy rubber casing and an inner cell of high grade rubber (similar to the inner tube of a bicycle) may be employed. Obviously the present invention may be em bodied in several forms neither shown nor de scribed, and many materials, other than those named, may be employed in making the buoys 40 and their principal parts. > ed, whereupon its ef?ciency is lost. Therefore, in accordance with the invention, I divide the buoy Having “described an embodiment of the inven tion, what I claim as new and desire to secure by into a series of sealed compartments or cells any 45 one of which, if ?ooded, would only slightly Letters Patent is: A buoy comprising a body which is hollow and whose walls are impervious to water; and a plu diminish the buoyancy of the buoy as a whole. In Fig. 2 there is shown the preferred arrange ment, wherein the buoy has a multiplicity of hol low buoyant cells l6 which‘ are sealed 011 from 50 each other and from the interior of the hollow buoy body [0, l l within which the cells are placed. As shown in Fig. 3, each of the cells l6 has a central aperture I‘! through which rod I 2 15 rality of buoyant cells substantially completely ?lling the interior of the body; each of said cells comprising a heavy rubber casing and an inner cell of high grade rubber which is capable of being 50 in?ated. HENRY W. WALTERS.