Патент USA US2130427код для вставки
Sept. 20, 1938. > F. M. HOOVER 2,130,427 TOY Filed Feb. 28, 1938 INVENTOR. 141mb /h. N00 rm “6M "MA ICU/(allay; J/Z‘s ATTORNEYS. 2,130,427 Patented Sept. 20, 1938 UNITED STATES PATENT’ ‘OFFICE 2,130,427 TOY Frank M. Hoover, Youngstown, Ohio Application February 28, 1938, Serial No. 192,913 4 Claims. (01. 46-193) This invention consists in a toy, and, speci? The material, urea formaldehyde, is, at room cally, in a rattle for babies. temperature, a tough, hard material, that affords Fig. I of the accompanying drawing shows the‘ a loud rattling sound when the toy is shaken. rattle in perspective. Figs. II and III are views The size of the disks is such that it is impossible The size is-such that a baby may use the toy with the effect of a teething ring. The shape and dimensions of the disks are chosen to afford a compact article of loud rattling power, whose elements are of strength to endure the intended use. The ma terial when shaped by 'molding a?ords an article of smooth and lustrous surface. The material being itself colorless, the disks may be brilliantly 5 in diametrical section ‘and in elevation of one _ for a child to swallow the toy. of the disks that enter into the composition of the rattle. The rattle consists of a plurality-advanta geously a dozen or more—of identical perforate 10 disk-like rattle elements strung upon a ?exible, endless carrier. The carrier will advantageously take the form of a length of metal chain I of bead-shaped links provided at the ends with the complementary parts 2, 3 of a separable fastener, in order that the rattle elements may be strung bead-like upon the chain and the ends made fast, securing the whole. ' ' ' The rattle elements are formed of urea formal 20 dehyde, a thermo-plastic material that at room temperature is hard and bone-like. Each of these identical elements 4 is advantageously of general disk shape, having preferably the par ticular form of a circular section of a spherical 25 shell. This shell may, typically, ‘be one sixteenth of an inch in thickness, and its internal spheric ity may be of two and ?ve eighths inch radius. In re?nement the disk may be formed of increas ing thickness towards its periphery, and in this 30 case the effect is gained by shaping the two sur faces to conformity with two spheres described by unequal radii and upon spaced apart centers, the outer spherical surface on a two and thirteen sixteenths inch radius and the inner surface on 35 a radius three sixteenths of an inch less. The diameter of the disk may be two inches, and the central perforation a quarter of an inch in diam eter. The perforation is surrounded on the con cave face of the disk by an outstanding ?ange 40 5, of one substance with, and shaped integrally with, the body of the disk. This ?ange extends approximately to, but preferably falls a little short of, intersection with the plane that chord like de?nes the spherical section. The disk is, 45 as has been intimated, a molded article, and all its limiting edges are rounded. The ?anges 5 afford such spacing of the disks in the assembled toy as to cause them to clash at their peripheries and to produce a loud rattling sound. The round 50 ing of the edges makes for cleanliness and dura bility and also facilitates rattling movement. The perforations through the disks being of the order of a quarter of an inch in diameter, the chain may be of bead-like links that are an 55 eighth of an inch in diameter or less; and, ?fteen or sixteen such dis'ks being strung, the chain may be approximately twelve inches long. 10, colored, byv pigments worked into the substance, and the assembly of disks on the chain may pre sent a pleasing variety of bright colors. 15 The material is non-in?ammable; it is inert to saliva; it is dense and non-penetrable by, and non-absorbent of, water; it is susceptible to sterilization in boiling water, and the disks may 20 repeatedly and for sufficient intervals of time be subjected to sterilization in boiling water with out loss of shape or of luster. The rattle of the invention has this character istic of a string of beads, that it prompts a child in the identi?cation of colors and in learning 25 to count. Circularity of the disks and curvature to spheri cal conformation are preferred, though not es sential, features. I claim as my invention: 30 . 1. A rattle consisting of a plurality of perforate disks of urea formaldehyde with outstanding ?anges surrounding the perforations, the disks being loosely strung upon an endless ?exible 35 carrier. 2. A rattle consisting of a plurality of perforate disks of identical shape loosely strung upon an endless ?exible carrier, each disk shaped to con formity to a spherical shell and provided on its 40 concave face with a ?ange surrounding its ‘per foration. ' . 3. A rattle consisting of a plurality of perforate disks of identical shape loosely strung upon an endless metal chain of bead-shaped links, each 45 disk shaped to conformity to a spherical shell and provided on its concave face with a perfora tion-surrounding ?ange. ‘ ' 4. A rattle consisting of a plurality of perforate ‘ disks of identical shape loosely strung in uni 50 form succession upon an endless ?exible carrier, each disk shaped to substantial. conformity to a spherical shell, but of thickness increasing to- _ ward the periphery, and provided on its concave face with a spacing ?ange surrounding the per 55 foration. FRANK M. HOOVER.