Abstract: There is disclosed an article for diagnosis of achlorhydria which includes an agent which is readily detectable when released in the stomach, the agent being enclosed in a fluid-impervious entrapping medium which is degraded in acidic fluids to release the agent.
Abstract: There is disclosed an article useful for producing concrete with textured patterns which includes a membrane of water permeable material having a pattern prepared on one side thereof with a water soluble retardant for the setting of cement and with the retardant pattern completely covered with a waterproof film that is bonded to the membrane immediately adjacent the retardant pattern. There is also disclosed a method for preparing concrete to have a pattern on its surface employing the article.
Abstract: A tendon anchorage for use in prestressing concrete members is disclosed which preferably includes a tubular mounting means mounted to extend over the tendon and through an opening in a bearing or anchor plate in order to secure the bearing plate in fixed and aligned relation to a tendon for casting the bearing plate into the concrete member in a predetermined orientation therein. Spacing means between the form board and the anchor plate allow the anchor plate to be cast into a recess in the concrete member. A wedge receiving housing and wedge assembly is positioned in alignment and in abutting relation with the bearing plate after casting of the bearing plate into the concrete.
Abstract: A process and apparatus for cutting, creasing and/or embossing sheets of cardboard, paper of similar material is disclosed. The apparatus includes a tool plate or die having steps therein in the form of parting steps and ribs and/or grooves to form creases. A resilient elastic member is employed to press the cardboard web down against the various steps in the tool plate. The size and configuration of the steps and the tool plate causes severing or cutting of the cardboard or creasing or embossing. Apparatus for use with rotational as well as planar or reciprocating blanking machines and a variety of different tool plate constructions are disclosed. The process includes resilient urging of the sheet against the die piece with the elastic member causing deformation of the sheet to conform to the tool plate.
Abstract: There is provided a brake system for a vehicle train which includes a tractor and a trailer, a source of high pressure air connected through an air control line to a pneumatic brake with the air control line in the tractor being connected to a fast-acting pressure switch which is activated by a higher pressure and a slow-acting pressure switch which is activated by a lower pressure, and with the fast-acting pressure switch operatively connected to open a valve to supply high pressure air directly to the trailer brake, and with said low pressure switch operatively connected to open the circuit which includes the fast-acting pressure switch.
Abstract: A method for coupling together two generally axially aligned structures, preferably concrete tunnel sections, is disclosed. The method includes mounting coupling apparatus including coupling means having an outwardly facing socket with a tapered thread therein to a first structure, mounting a coupling tendon having a tapered threaded end dimensioned to mate with the socket to a second structure, coupling the tendon to the coupling means and applying an axial tension force to the tendon and coupling means. The method and apparatus enables coupling together of substantially misalignment structures which could not be accomplished if conventional cylindrical threads were employed.
Abstract: A process is disclosed for recovering fresh water from brine which includes introducing brine, which has been inoculated with a predetermined number of ice nuclei and is at about its freezing temperature, into an elongated crystal growth zone which is supplied with refrigerant along the brine flow path at a graduated rate such that more refrigerant is supplied toward the outlet of the crystal growth zone than near the inlet. Ice crystals are separated from the resulting brine-ice slurry, and the ice crystals are washed with fresh water before being melted to recover fresh water.
Abstract: An electrically heated soldering device includes a housing having an elongated axis with an obtuse angle, an open end, a closed end and an intermediate opening. The outer dimensions of the housing are so dimensioned that the device can be held pencil-fashion with the portion of the housing between the open end and intermediate end grasped by the fingers and thumb of the hand with the portion of the housing between the intermediate opening and the closed end resting on the back of the hand between the thumb and index finger. An electric heating means is substantially coaxially positioned in the housing in spaced relation thereto and is provided with a soldering tip protruding out of the housing through said open end. The open end and the intermediate opening are substantially aligned to produce a chimney-like hollow space surrounding the hot parts of the heating means which carries away excess heat generated within the housing thereby maintaining the housing comfortably cool to touch.
Abstract: There is disclosed a device for loading down which includes a source of air-fluffed down and a blower for delivering down entrained in air through at least one down-loading station. The device includes connections to draw down from its source to a calibrated filter and to reverse the flow through the filter when a predetermined amount of down has been delivered, whereby the down is removed from the filter and delivered, entrained in air, to a loading station. There is also disclosed a two-vessel device for providing a small amount of air-fluffed down from a large, compact capacity.
Abstract: There is disclosed a device for holding and growing plant material by hydroponic techniques, the device including a tray having sloping sidewalls, with the sidewalls having extensions for being supported on a rail, and a corrugated bottom with the corrugations shaped to provide drainage of liquid from the bottom of the tray and to hold a water-impervious, seed-holding membrane above the corrugations so that the membrane will have a crown that causes liquid to drain toward the edges of the tray.
Abstract: Apparatus for growing plants by means of water culture or hydroponics is disclosed. The apparatus includes raft means formed to receive and support the plants on a nutrient solution with their root systems extending therethrough while they grow to maturity. The rafts are formed for positioning in close proximity during all stages of plant growth to maximize the plant density per unit area of the solution. The rafts are preferably constructed for seed germination as well as for growth of seedlings to mature plants. Buoyancy of the rafts is increased during plant growth by placing a small raft on a larger raft or auxiliary buoyancy means.
Abstract: An end fitting for a cargo bar of the type formed for use with a belt rail to restrain or support cargo against shifting in a truck, railroad car, etc. is disclosed. The improved end fitting is formed for coupling to three of the most commonly used belt rails in the trucking industry. The end fitting includes two coupling apparatus and a pair of spaced apart flanges which are formed for cooperative coupling to a first belt rail structure, reciprocation of part of one of the coupling apparatus to a withdrawn position, and cooperative coupling to a second and a third belt rail. Two forms of end fittings are disclosed.
Abstract: There is disclosed a handle for a disposable appliance that is particularly useful as a dental instrument for holding a disposable swab or brush that is mounted on a bendable stem, which device includes a handle that is of a size and shape to be manipulated with the fingers and having on at least one end a holding means for the stem. The holding means includes at least one groove of a size to receive the stem snugly and a slot located between the groove and the handle with the thickness of the slot being slightly greater than the diameter of the stem. A removable sleeve that is formed with internal contours to provide a friction fit with the holding means cooperates with the holding means, when installed thereon, to form a channel including at least one groove, the channel closely embracing the stem and holding it against slipping axially.
Abstract: A wall decorating paint applying device which is composed of a one piece, unitary, soft, compressible, resiliently self-restoring, sponge body having a relieved, design defining, paint imprinting, face. The opposite side of the body is formed with an integral, finger grippable, sponge handle portion for manually handling the device in applying paint to the imprinting face and thereafter correctly positioning the face in compression on a wall surface to be decorated.
Abstract: A urinary catheter having a pair of longitudinally-spaced passage closing means which may be individually and sequentially operated for draining the urinary bladder and when in closed position providing an air lock effectively preventing transmission of infecting agents into the bladder.
Abstract: A positive cable derailment sensing apparatus and method for use with pulley means having a cable carried thereby to detect derailment of the cable from the pulley means is disclosed. The sensing apparatus includes a flexible tendon secured to a low inertia component of the pulley means, usually a pivotally mounted yoke carrying a pair of pulleys, and secured to spring biasing means to bias the low inertia component for movement upon derailment of the cable from the pulleys. The flexible tendon normally extends from the pulleys to a remote position which is protected or shielded from adverse environmental conditions. Sensing means is located at the remote protected location and formed to sense movement of the flexible tendon and stop the advancement of the cable over the pulley means upon derailment. A switch construction particularly well suited for sensing the derailment of either side of the looped cable of the type found on chairlifts or the like is also disclosed.
Abstract: A mechanical push button lock including a lock bolt which is mechanically displaced to and from a locked position by the cooperative engagement of push button driven motion inducing means and bolt actuating means is disclosed. The motion inducing means is preferably formed as a conical element mounted to the inner end of each push button, and the bolt actuating means is preferably formed as a slide plate having a plurality of openings therein. The conical elements are skewed about their longitudinal axes so that axial advancement of the conical elements into the openings of the slide plate causes the slide plate to be preferentially displaced in a predetermined direction causing locking or unlocking of the lock mechanism. Means is also disclosed for spring biasing the push buttons and for operating the lock bolt independently of the push buttons.
Abstract: A fastener comprising a combination of a headed stud and clasp member having openings respectively larger and smaller than the stud head and a connecting passageway sized for movement of the stud therethrough to an attached position with the clasp member confined by the stud head, and manually operable detent means barring return disconnecting movement of the stud and clasp member.
Abstract: A security device includes an alarm that is actuated after a predetermined period of no human physical activity, which device includes a clock set to actuate the alarm after a predetermined period of inactivity, an activity sensor that resets the clock when human activity is sensed, and a means to sense an inanimate object, such as a set of keys, and which, when the inanimate object is absent, will not actuate the alarm when the predetermined time period has passed. There is also disclosed means to actuate the alarm when any activity is sensed if the inanimate object is absent.
Abstract: A process for highspeed branding of an intricate pattern, usually a wood grain pattern, into materials such as particle board, hard board or various lumbers having poor grain characteristics is disclosed. The material to be branded is passed under a heated rotary die having the desired pattern thereon to emboss by heat shrinking and to char the pattern into the material; and the improvement of the process of the present invention, which effects an increased die life, is comprised of maintaining the die at about a temperature between about 800.degree. and about 900.degree. F. This temperature range is high enough to achieve high quality branding and high quantity production, while minimizing degradation of the die pattern from oxidation and contact with the material being branded. The die pattern is preferably relatively deep, in excess of 0.040 inch, and is urged into the material to a depth of about one-half the pattern depth.