Abstract: An ejection device in a die closing unit of an injection molding machine in which the ejector piston rod, reaching from behind through the movable die carrier and into an engagement cavity in the back plate of the movable die half, is automatically engaged with, or disengaged from, the ejector plate, in the course of the movement of a die assembly into and out of the operating position, in conjunction with a mechanized die exchange procedure. A connecting socket at the extremity of the piston rod cooperates with a connecting plug on the back side of the ejector plate. A brief interruption of the transfer movement, obtained by means of a stop-start mechanism responsive to the die assembly transfer movement, allows for the piston rod to be extended into, or retracted from, the engagement cavity.

Abstract: A three station turret-type apparatus is provided with a first station including structure for receiving a quantity of soil to be compressed into a building block, a second station for compressing the soil into the desired building block and a third station for ejecting a formed building block from the apparatus. A rotary table is equipped with peripherally spaced sleeves for successive registry with the three station positions and each sleeve comprises a mold in which the desired block is to be formed. The sleeves are removable and replaceable and one form of sleeve is constructed to have an auxiliary smaller plan area sleeve removably mounted therein. Further in the second station position, a stationary bottom plate closes the lower end of the sleeve registered therewith and the bottom plate faced with a urethane elastomer material. A pressure head opposes and is movably toward and away from the stationary plate and is faced with a similar urethane elastomer material.

Abstract: An ejection device in a die closing unit of an injection molding machine in which the ejector piston rod, reaching from behind through the movable die carrier and into an engagement cavity in the back plate of the movable die half, is automatically engaged with, or disengaged from, the ejector plate, in the course of the movement of a die assembly into and out of the operating position, in conjunction with a mechanized die exchange procedure. A connecting socket at the extremity of the piston rod cooperates with a connecting plug on the back side of the ejector plate. A brief interruption of the transfer movement, obtained by means of a stop-start mechanism responsive to the die assembly transfer movement, allows for the piston rod to be extended into, or retracted from, the engagement cavity.

Abstract: The present invention is a device to produce manually compressed soil-cement blocks faster and more efficiently than previous devices of this type. The apparatus consists of a rectangular box connected to partially slotted supports, a cover to hold the mixture in the box during compression, a sliding plate to do the compression and a toggle linkage to create mechanical advantage necessary to convert human energy input into useful work. The toggle linkage is connected to toggle-connecting bars which are joined to wing pieces which connect to a lever actuated by a handle located on one side of the machine. Downward swinging of the handle causes the mechanism to move the sliding plate up and compress the soil between the fixed cover and advancing sliding plate.

Abstract: Mold elements, generally composed of clay, are removed from the mold by pressing the body upwardly with a wedging action.

Abstract: A table top brick molding machine includes a table defined by a top and legs, the top incorporating a grid open at its top and bottom for defining the sides of molds for receiving brick forming composition; a hopper for dispensing the brick forming composition into the grid; a chain and sprocket drive connected to the hopper for moving the hopper along tracks on the table top above the grid; a shelf beneath the grid for supporting a pallet on a carrier; and a lever system for raising the pallet against the bottom of the grid to complete the molds, and for lowering the pallet and carrier onto the shelf for removal laterally from beneath the table.

Abstract: A multiple press having a plurality of molds for forming ceramic moldings. The press includes a base frame on which a movable mounting plate is mounted. The movable mounting plate carries a plurality of mold halves. The base frame also includes a fixed mounting plate having a plurality of cylindrical bores in which a plurality of punch carriers are slidably mounted. Each punch carrier holds a mold half which mates with the confronting mold half on the movable mounting plate. The cylindrical bores being in communication with a source of a pressure medium so that a "pressure pad" is formed behind each punch carrier during the molding process.

Abstract: A molding apparatus and method are provided for forming patties from an agglomerable edible material such as meat. The apparatus includes a turret which rotates between a feed station where the edible material is fed upwardly under pressure into one of a plurality of mold cavities and a discharge station where each formed patty is ejected by a piston. An improved sealing means is provided for effecting sealing engagement of a feed spout assembly with the bottom surface of the rotating turret. An improved cut-off band is also provided for separating the formed patties from the turret at the discharge station. Reciprocation of the piston in each mold cavity is regulated by a control means which includes means for limiting the free upward movement of the piston until the cavity opening is fully aligned with a feed opening in the feed spout assembly.

Abstract: Apparatus for molding expandable thermoplastic resin particles having opposed mold platens. The platens having male and female mold members mounted thereon. The first platen having heated and cooled male mold members mounted thereon, and the second platen having heated and cooled female mold members mounted thereon. Tie bars extending between the first and second platens. Means for feeding expandable thermoplastic resin particles to the mold cavities defined by the male and female mold members when they are engaged together. Means for transfering the mold members from a first position wherein the heated and cooled mold members on the respective platens would be opposed to each other, and in a second position wherein the heated mold member on one platen would be opposed to the cool mold member on the other opposing platen. Means to clamp the mold members together during molding of the expandable thermoplastic resin particles.

Abstract: A machine for the production of articles of foamed plastics material in a two-stage process has a first work station for a hot preforming stage and a second work station for a following cold forming stage. Each station has a two-part mould, the second mould part of each mould being movable towards and away from its first mould part by means of a fluid cylinder, and the first mould parts are connected together and mounted so as to be movable in unison in a direction at right angles to the direction of movement of the second mould parts.

Abstract: Apparatus for and method of making products, such as pastry cups, ice cream cones and the like, by baking batter in split molds carried by mold bars, the molds cooperating with removable cores carried by core bars selectively latched to the mold bars. The mold bars are mounted on a continuously operating conveyor by which they are progressively carried through an oven, a core bar removing station, a mold opening and product removing station, mold closing and mold charging stations, a core bar replacement station, a core bar jogging station, and a core bar latching station. When the core bars with their cores are removed from the mold bars, they are temporarily stored on and carried by the conveyor.