Abstract: A machine for making molds and molding cores (126) includes a pair of mold boxes (42a, 42b) removably mounted on a frame (60) for rotation between an upright, molding position in which molding material is introduced into the molding cavity of the molding boxes (42a, 42b) by a carrier (26) and an inverted discharge position in which the mold (126) is removed from the boxes by a mold receiving assembly (76). A pressure head assembly (46) both compresses molding material within the molding cavity and introduces a catalyst gas into the cavity for curing the molding material. A system for removing the spent gas from the molding cavity includes a pair of gas receiving chambers (122a, 122b) integral with the frame (60) which receives gas through the bottom of the mold boxes (42a, 42b) and an exhaust assembly (68, 70) which is selectively coupled with exhaust ports (124a, 124b) in the chambers (122a, 122b ).

Abstract: A check valve is disclosed having a preset cracking pressure. The check valve comprises a valve element reciprocatably positioned within a valve body, both the valve body and the valve element including valve seats which seal together when the valve element is urged forwardly within the valve body. A plug is positioned within the rear of the valve body to constantly urge the valve element forwardly thereby defining a cracking pressure necessary to unseat the valve seats allowing the flow of fluid through the valve body.

Abstract: The invention comprises a visual pressure indicator for endotracheal cuffs. More particularly, the indicator of the invention comprises an indicating diaphragm which is sealingly positioned within a body by means of a cap. A hole is positioned within the cap to allow protrusion of an indicating stem of the diaphragm. The air space between the diaphragm and the body is connected in fluid communication with the cuff supply tube by means of passageways. A syringe-operable, one-way valve is positioned within the body to allow filling of the endotracheal cuff with air by means of a syringe, and to prevent leakage of the air from the cuff once it is properly filled. The indicator of the invention is fitted to the end of the cuff supply tube, and a conventional syringe is fitted to the indicator. When the endotracheal tube is in position within the patient's trachea, the syringe is operated to force air into the endotracheal cuff via the one-way valve, cuff supply tube, and cuff supply channel.

Abstract: A person emergency rescue assembly comprising a container attachable to a person with an automatically inflatable flotation device stored in the container. The container is readily opened by pulling on a release so that the flotation device automatically inflates.

Abstract: Lubricator for bores in members, the lubricator being particularly useful for the lubrication of bores of small diameter with a lubricant of high viscosity. The lubricator has an applicator in the form of an elongated composite plunger having an outer tubular part and inner rod-like part disposed within the tubular part and reciprocable relative thereto. The inner part has an enlarged head thereon disposed axially outwardly of the confronting outer end of the outer tubular part, the head and the confronting end of the outer tubular part in the initial stage of operation of the lubricator defining a toroidal gap which receives and retains lubricant which it picks up as the outer end of the composite plunger travels through a reservoir for lubricant and thence into the bore of the member.

Abstract: An automatic inflator which inflates gas-inflatable articles by the release of compressed gas from a gas-containing capsule by the piercing of a seal on the capsule. The inflator has an elongated housing having first and second end portions, the housing receiving the neck of a compressed gas-containing capsule mounted for longitudinal movement with respect thereto and with the seal on the capsule disposed adjacent the second end portion of the housing. A piercing pin is mounted on the first end portion of the housing to confront the seal on the neck of a capsule mounted therein, there being a spring at the second end portion of the housing for constantly urging the capsule longitudinally of the housing toward the first end portion thereof.

Abstract: An emergency rescue assembly comprising a container attachable to a boat so as to overhang the water, with an automatically inflatable location or flotation device stored in the container. The container is readily opened by a pull on a release so that the device falls into the water and automatically inflates.

Abstract: A conductor tube for a battery operated flashlight is disclosed. The conductor tube comprises an inner non-conductive sleeve positioned within an outer conductive sleeve. The flashlight bulb-receiving end of the conductor tube includes a plurality of inwardly disposed lances which extend from the outer conductive sleeve through the inner non-conductive sleeve to electrically engage the base terminal of the light bulb. The lances may extend longitudinally with respect to the conductor tube to securely receive the base of the light bulb of the flashlight. Alternatively, the lances may extend substantially circumventially about the end of the conductor tube to threadably receive the base of the light bulb and establish electrical continuity therewith.

Abstract: A guard to prevent the inadvertent operation of an inflator for use with an inflatable article, the inflator having a piercing pin which is operated by a manually operated lever. The guard of the invention, which is used instead of the formerly used headed frangible pin which extended through the lever and the body of the inflator on both sides thereof, is of U-shape and is mounted on the body of the inflator so that the broad main part of the guard straddles the lever when the latter is in retracted position, and the legs of the guard tightly pinch the opposite sides of the inflator body between them. The guard is simple and economical to make, can be quickly applied to the inflator body, is reusable, and can readily be applied in the field, in contrast to the formerly employed frangible pin which required the use of special heading equipment in order fully to apply it to the inflator body.

Abstract: A mold conveyor drive assembly is provided to selectively drive an endless mold conveyor chain with a central unitary driving force exerted along the longitudinal (horizontal) axis of the mold conveyor chain being driven. The mold conveyor drive assembly comprises a vertically oriented endless cat drive chain which is provided with motor drive means. The cat drive chain is positioned below and in spaced-apart register with the mold conveyor chain. The cat drive chain is provided with a plurality of spaced-apart drive dogs along the longitudinal axis thereof which are adapted to be selectively moved into engagement with the mold conveyor chain so as to driveably engage selected of a plurality of corresponding spaced-apart pusher elements provided along the longitudinal axis of the mold conveyor chain and to selectively act upon the mold conveyor chain to decelerate and stop it when desired.

Abstract: An automatic method for producing molds using chemically bonded sands which consists of a molding machine adapted to produce either honeycomb (horizontally parted) or controlled contour (vertically parted) mold elements. The molding machine is provided with a venturi-type blow head having dual blow valves and an integral air chamber. Carriage means are provided to selectively move a sand magazine and catalyst manifold between their respective fill and work stations on the molding machine. A hydraulically actuated mold receiver, trunnion rollover and shuttle car means are provided to selectively receive the completed molds from the molding machine and transport them to associated mold finishing and closing means. A hydraulically actuated pattern clamp table is provided with an enclosed pattern and stripper pin stool having a separate hydraulically actuated stripper pin plate. The enclosed pattern and stripper pin stool is an integral catalyst exhaust manifold.

Abstract: A mold apparatus and method for minimizing the amount of chemically bonded molding sand needed to form a block mold which consists of a flask mounted upon a pattern plate and a sand minimizer blow plate which is selectively movable into engagement with the upper edge surface of the flask mounted upon the pattern plate so as to form a mold cavity therewith into which the chemically bonded molding sand is blown so as to form the sand mold. The sand minimizer blow plate is provided with pocket forming finger extensions which extend downwardly into the mold cavity so as to form block sand minimizer pocket cavities in the completed sand mold.

Abstract: A cylindrical sand reclaimer drum for removing spent bonding contaminants and refuse from chemically bonded foundry molding sand and the like. The cylindrical drum is rotatably mounted along its longitudinal axis and is supported in a substantially horizontal inclined position along its longitudinal axis. The cylindrical drum has an intake opening at the elevated end thereof to receive the contaminated sand and process it through a plurality of internal compartments containing spherical or cube shaped abrasion media. The compartments are formed by a plurality of spaced-apart circular divider panels mounted on the central spindle or shaft of the cylindrical drum and which are perpendicular to the longitudinal axis thereof and are axially adjustable therealong. A plurality of spaced-apart openings are provided along the circumferential edge of each of the divider panels.

Abstract: A cooling conveyor control system which selectively controls a mold cooling conveyor assembly adapted to receive poured molds from the pouring rails of an automatic molding machine and transport them to a collecting conveyor or shakeout mechanism in a continuous or selectively spaced apart mold string. A cooling conveyor control system is provided whereby the cooling conveyor is indexed to move synchronously in response to corresponding operation of the molding machine. The control system includes an electronic controller which processes information received from the control system of the molding machine with feedback information from the hydrostatic drive of the cooling conveyor so as to produce a signal which operates a servo valve to correspondingly control the drive system of the cooling conveyor assembly.

Abstract: An automatic method and apparatus for producing molds using chemically bonded sands which consists of a molding machine adapted to produce either honeycomb (horizontally parted) or controlled contour (vertically parted) mold elements. The molding machine is provided with a venturi-type blow head having dual blow valves and an integral air chamber. Carriage means are provided to selectively move a sand magazine and catalyst manifold between their respective fill and work stations on the molding machine. A hydraulically actuated mold receiver, trunnion rollover and shuttle car means are provided to selectively receive the completed molds from the molding machine and transport them to associated mold finishing and closing means. A hydraulically actuated pattern clamp table is provided with an enclosed pattern and stripper pin stool having a separate hydraulically actuated stripper pin plate. The enclosed pattern and stripper pin stool is an integral catalyst exhaust manifold.

Abstract: A tether adapted for use in a device for inflating and deflating an inflatable article. The device shown has a body affixed to a wall of the inflatable article at a hole therethrough, the device having a tubular insert or nipple sealed to the body and a closure element or plug functioning as a stopper for the nipple, the plug being completely removable from the nipple to deflate the article. The plug has threaded engagement with the nipple, and functions as an inflating check valve when the valve is opened by partially unscrewing the plug from the nipple. The inflation device incorporates a novel tether for the rotatable plug, the tether permitting free rotation of the plug with respect to the nipple, and the complete removal of the plug from the nipple while retaining it tethered, as during the deflation of the inflatable article.