Abstract: A rotary mixer scraper blade commonly termed a beater scraper blade for a freezer machine for producing ice cream, frozen yogurt and like confectionery foods in which the mixer has diametrically opposite scraping blades at opposite ends thereof. The scraper blades have a generally triangular cross sectional shape with a thick body portion narrowing to the thin scraping edge thus presenting a leading face of the blade which is presented at an angle which facilitates removal therefrom of material it engages during mixing and scraping thus reducing tendencies toward hangup of material thereon. Since the blades have a cross sectional shape with a thicker section than conventional blades they can be made of resinous material instead of metal because the shape imparts greater flex strength to the blades compared to conventional parallel sided blades.

Abstract: An automatic or manually operated tire mounting tool adapted primarily for mounting flexible tires on rims of various sizes and configurations. Such device is comprised of an elongated longitudinally extending working arm with two working ends for mounting and demounting purposes respectively, one end of which supports a vertically disposed rotatably mounted working roller, which roller assists in and facilitates the mounting process, and wherein said mounting arm is equipped on its mounting end with a hooked shaped positioning tong to assist in the mounting process.

Abstract: An automatically actuated tire mounting and demounting machine flexibly equipped for mounting tires on rims of all configuration, said machine comprising coordinated working elements which mount a resiliently composed tire on a rim and simultaneously inject air pressure into the tire interior as the tire is at the final steps of its mounting process. Moreover, the machine incorporating the subject invention comprises a base member upon which a tire mounting block is affixed, this tire mounting block being so structured to receive a bare tire rim in a horizontal position for installation of the tire member thereon.