Abstract: A water-resistant, removable pressure sensitive adhesive for use with transparent film facestocks comprises an acrylic-based emulsion polymer composition comprising 85 to 97% by weight alkyl acrylate monomers, up to 3% by weight polar monomers, up to 1% by weight internal crosslinking agent and up to 2% by weight external crosslinking agent.

Abstract: An emulsified pressure sensitive adhesive is provided which is based on a polymer containing from about 95 to 97.5% by weight of an alkyl ester of acrylic acid and from about 2.5 to 5% by weight of a mixture of carboxylic acids and a three component anionic surfactant system. The polymer is preferably tackified.

Abstract: The tuyere (3) is clamped in place with its inlet end by way of an integrally formed flange (4) in a flange connection (5) of a pipe adapter (6) attached to the wall (2) on the outside, and a pipe connection (7), the outlet end of this tuyere being freely extended through the wall (2) up into the chamber (1) traversed by the flow. The primary field of application is the use of the tuyere in the treatment of hot flue gas having a temperature of 700.degree. to 1100.degree. C. with a reducing agent for decreasing nitrogen oxides.

Abstract: A hand pressure operated seed planter includes an elongated vertically disposed tubular body for storing seeds with a cup-shaped telescoping bottom cap having seed dispensing openings. A rotatably mounted closure plate is mounted within the bottom cap. The bottom cap is normally forced downwardly by a spring. A spiral plate that is adapted to function as a helical cam member is operatively associated between the storage tube and the closure plate to rotate the closure plate to an open position allowing seeds to fall through the dispensing hole when enough downward pressure is applied to the planter to force the bottom cap upwardly upon the tubular body.

Abstract: An apparatus is described for forming cracked ice by producing a layer of ice on the inner wall of a cylindrical chamber, heating the chamber to loosen the ice, forcing the ice cylinder upwardly past a breaker which is stationary and allowing the ice to accummulate in a hopper. A ring-shaped conveyor provided with circumferentially-spaced paddles is driven by means of a motor mounted on one side of the hopper to carry pieces of cracked ice toward an outlet in the hopper.

Abstract: An ice-making machine includes a hopper (10) which is provided with means for automatically switching the machine off when the ice collected in the hopper rises to a predetermined level. The hopper comprises a cup-shaped bowl (14) covered with a flanged collar (24) slidable within the bowl. The collar (24) in turn is covered with a lid (32) which is press fitted onto its upper cylindrical part (28). Magnetic switches (38 and 40) are attached to collar (24) and magnetically sensitive contacts of the switches are mounted in bowl (14). The switches are connected in series in the circuit of the drive motor of the ice-making machine and are normally closed. When ice fills the bowl to a predetermined level, the lid and the collar, which is rigidly connected to the lid, are lifted, thereby breaking the contacts and turning the ice-making machine off. When, after consumption of ice, its level in the bowl is lowered, the lid and the collar descend, closing the contacts and reenergizing the ice-making machine.

Abstract: Dispenser for dispensing thick liquids such as catsup, mustard, salad dressing or the like, and including a configured housing with a base for supporting a bottle with the mouth screwed into the base in upsidedown configuration, an air squeeze bulb connected through a channel in the base to an air tube extending up through the neck of the bottle and into an upper portion of the bottle, a thick liquid channel from the top of the housing to a spout in the configured housing for flow of the thick consistency of the contents, and a spring lever actuated by the air squeeze bulb so that the lever opens the spout on squeezing of the air squeeze bulb and introducing air into the bottle thereby forcing the thick consistency liquid down through the channel in the configured housing through the spout in a desired measured quantity.

Abstract: An ice breaking head for an ice producing machine is adjustable for producing harvested ice of selected sizes. The ice making machine has a cylinder, the inner surface of which produces commercial sheet ice. The ice is harvested by forcing the ice from out of the cylinder toward an ice breaking head. The position of ice breaking head is adjustable to vary the size of the ice harvested. The head has an ice breaking surface which contains fins for facilitating the breaking of the ice sheet. It is journalled on a mounting post which has keys or ribs of increasing heights which match corresponding keyway slots in the bore of the head so that the spacing of the head, and hence the size of the ice harvested, can be adjusted by changing the rotational position of the head on its mounting post.

Abstract: Process for quick freezing and conditioning of individual products, and apparatus to practice this process. The process is characterized in that it consists essentially in treating small individual quantities of different products in modular indivdual quick-freeze chambers (1) fed with cryogenic gas and connected each to a quick-freeze tunnel (3) so as to provide in the latter a low temperature, and in treating larger quantities of product pieces in the tunnel (3), provided with a conveyor belt (4) and which is also fed with cryogenic gas, in evacuating the residual warmed gas obtained from the interior of the tunnel (3), in packaging the products leaving the tunnel in insulating packaging disposed in a receiver (6) mounted at the outlet of the tunnel (3), or in filling the packaging with products issuing from a chamber, then in surrounding the assembly of products disposed in the packaging with a cryogenic product, and closing the packaging.