Abstract: The specification describes a high pressure mixing head for producing a chemically reactive mixture for producing foam articles. An expulsion piston adapted to move in a mixing chamber with inlet ports for the reactive mixture components and with an outlet port is driven by a drive piston. In order to achieve a higher velocity of the expulsion piston in the vicinity of the inlet ports the drive piston is constructed in two parts, an inner piston part and an outer annular piston part adapted to slide on the inner piston part. At the end of the stroke the outer piston part is arrested and the inner piston part continues to move at a higher velocity, a projection at the end of the drive piston moving into a recess. At the beginning of the stroke in the other direction the projection is moved out of the recess by a pressure medium at a high speed until the projection has cleared the recess.

Abstract: A case is disclosed for a tool that includes an elongated shaft and a fitting attached to and extending perpendicularly from the shaft at a location spaced from a free shaft end. The case comprises a body which is formed with a tool shaft accepting recess, a first socket extending axially from the recess for receiving the free end of the shaft and a second socket extending perpendicularly to the recess for receiving the tool fitting. Axial movement of the tool is prevented when the free end of the shaft and the fitting are respectively received in the first and second sockets. Moreover, the tool can only be removed from the case by first disengaging the fitting from the second socket and then disengaging the free end of the shaft from the first socket.

Abstract: An automatically closing lock, for a container having a body and a closure mounted for movement to close the body, includes a catch assembly having a catch housing mountable with one of the container body and closure. The catch housing defines a striker surface and a catch surface adjacent the striker surface. A latch assembly, that cooperates with the catch assembly, includes a latch housing mountable on the other of the container body and closure and a latch member mounted for limited pivoted movement in the latch housing. The latch member is formed with at least one hook-like element that is guided to the catch surface and into engagement therewith by the striker surface. A spring compressed in the latch housing urges the latch member and hook-like element into firm contact with the striker surface and into engagement with the catch surface.

Abstract: A device incorporated in an apparatus for automatically and periodically operating an aerosol container indicates when the container has been emptied and then stops operation of the container. The container operating apparatus includes a motor operatively linked to the container and a power supply for powering the motor. The stopping and indicating device comprises a timing circuit that includes a first time measuring network that produces motor actuating output pulses at a first periodic rate, each actuating pulse being of duration sufficient to cause the motor to operate the container. The timing circuit also includes a second time measuring network that produces non-actuating output pulses at a second periodic rate substantially greater than the first rate, each non-actuating pulse being of duration insufficient to cause the motor to operate the container.

Abstract: A date correcting mechanism for a watch or other timepiece having a crown-ring indicator for the date, in which the indicator is moved once a day by a rotatable driving disc which carries pins meshing with slots in the crown-ring. The correcting mechanism includes means for connecting the watch stem to the driving disc for manually setting the crown-ring indicator. A cam-plate which is driven by the watch movement is mounted for movement out of its operative position in which it cooperates with the pins on the driving disc to rotate the disc step-by-step and also to prevent it from rotating between steps in order to avoid inadvertent movement of the indicator. By mounting the cam-plate in this manner, it can be moved to an inoperative position, so that the pins on the driving disc can pass when the driving disc is actuated by the watch stem.

Abstract: In order to grade or classify particles according to their sphericity, the particles are fed onto a moving surface which has a gentle slope in the direction transverse to the direction of movement so that the particles move down the slope while being carried along by the moving surface. The rate of movement down the slope depends on the particle shape so that particles of different shape reach the lower edge of the surface at different positions. This movement of the particles is facilitated by vibrating the surface or moving it intermittently. The surface is preferably a rotating disk.

Abstract: A system is disclosed for a plural component plastics reaction injection molding machine which provides continuous supply and recycling of each of a plurality of liquid components between a mixing head and separate supply tanks for the respective liquid components. The system is designed to use a portion of the respective recycle conduits of the several components as supply conduits to the head, in parallel with the normal supply conduit to the head, during periods of reaction injection taking place in the mixing head, whereby to permit the employment of smaller diameter conduits in the aforesaid portions of the system without reducing the capacity of the molding system. Further economy is achieved by design of the aforesaid portions of the conduit systems to dispose either the supply or recycle conduit concentrically within the other.

Abstract: A securing device which permits the outer end of the hair-spring in a timepiece to be fastened either by gluing or pinning it in place. A U-shaped arm extends radially of the axis of the balance wheel and provides a pair of ears, one for gluing the hair-spring and the other for pinning it. The manufacturer of the watch can thus use the ear for gluing the outer end of the hair-spring, as this method has advantages for production purposes. When the hair-spring is replaced, the watch-repairman can use the other ear for pinning the outer end of the hair-spring without deforming the hair-spring, thereby obtaining the advantages of this method for repair purposes.

Abstract: An alignment control is described whereby the orientation of a turntable can be adjusted from outside of a tank in which an ultrasonic test system operates. The alignment control employs a diaphragm which is mounted over an opening in the bottom of the tank and is formed of a material capable of being flexed while supporting liquid inside the tank. The diaphragm is firmly gripped by a pair of clamp plates respectively located inside and outside of the tank. The clamp plates effectively support the turntable through a drive shaft and bearing with a pivot control connected between the outer clamp plate and an external segment of the tank. External alignment of the turntable as well as external rotational drive are advantageously provided.

Abstract: A finger-operable pump, adapted to be mounted on a hand-held container of liquid consumer product to provide an unpressurized dispenser package, includes a housing, that defines a pumping chamber, and a plunger telescopically received in the chamber for conventional pumping movement. A stem formed with the plunger projects outwardly of the housing. The pump further incorporates an inprovement in the form of an automatically operable seal arrangement for preventing leakage of liquid which comprises a conical valve seat formed about the mouth of a discharge passage through the plunger and stem and a valve element, having dome-shaped and conical portions, located in the pumping chamber to sealingly engage the valve seat. An actuator button is mounted on the outer end of the plunger stem and is linked, through an elongated connecting rod, to the valve element to move it out of engagement with the valve seat and then to reciprocate the plunger into the pumping chamber away from a home position.

Abstract: A heavy duty hydraulic weighing apparatus includes an integral base having a piston mounted in and encircled by an annular ring, a cooperating cylinder which fits radially between the piston and ring to receive the piston in freely interfittable relatively reciprocally moveable relation, and a flexible diaphragm of fluid impervious material sealed in the cylinder and overlying the piston to form a pressure receiving chamber. A bearing arrangement, which facilitates free relative reciprocal movement between the piston and base and the cylinder to permit heavy loading, comprises a plurality of cylindrical raceways, a first portion of each being defined in the outer wall of the cylinder and a second portion of each being defined in the inner wall of the annular ring. First and second bearing inserts, which are highly resistant to wear and minimize bearing friction, at least partially line the first and second raceway portions respectively.

Abstract: A stoma irrigation device is disclosed which enables a colostomy patient to adapt a simple open-ended tubular sheet plastic drain sleeve of low cost, disposable type for use in performing any of the several standard methods of irrigation using a cone, a catheter, or combination of cone-and-catheter under "closed system" conditions.

Abstract: A method of manufacturing a flexible cushion of foamed plastics material with an integrated cloth cover, comprising forming under vacuum to apply the cloth cover to the inner wall of a mold, and casting a plastics material capable of forming flexible foam, wherein before vacuum forming the cover in the mold the cloth is preformed, and wherein the cloth is maintained adjacent its periphery in a frame which allows the cloth to slide inwards without substantially elongating and undergoes at the level of the frame a peripheral shrinkage while avoiding plait formation, the cloth thus shaped being then fixed at the level of the frame.

Abstract: An apparatus is described for recording and playing back video frames with associated audio signals for use with a conventional television display. A magnetic loop is employed to store video frames for display with associated audio information being placed as a separate frame on another magnetic medium. A full program of video and audio frames may be received and selected from a remote transmitter and appropriately located on a magnetic medium for sequential display on the television display. A first embodiment uses a cassette tape with a video loop for storage and playback of a program. A second embodiment uses a pair of multiple track belts for program storage and playback. Pilot signals are employed to precisely store the video frames on the video loop and to automatically sequence the display and sound projection of the multiple video and associated audio frames.

Abstract: An electric alarm watch with an electro-optical display and an alarm mechanism which is released by a time-selecting device including a manually displaceable time-selector mounted for movement to different positions corresponding to the time of day for selecting the time at which the alarm goes off. At each position of the time-selector a particular set or combination of electrically conducting members is engaged by an electrically conducting zone or brush for producing an electronic signal which is peculiar to that particular position of the time-selector. A decoder may be used for receiving this signal and supplying it in decoded form to a comparator which compares the information from the time-selector with that received from the time-display portion of the watch. The alarm goes off when the information from the watch circuit is in concordance with that received from the time-selector.

Abstract: A method and apparatus for depth shifting well logging data are described. Well logging data signals are converted to digital data words at intervals determined by well depth pulses representing incremental well depths. The digital data words typical for a number of down hole exploring devices are then placed in groups of shift registers for relative shift advancement to outputs where a desired well depth displacement between data words occurs. Shift control words associated with each well logging signal are read from programmable machine readable records to determine the relative shift advance of the digital data words. A recycling counting and comparing process provides for the programmed shift advance of the digital data words to provide desired depth alignment of the well logging data at the shift register outputs.

Abstract: An apparatus for insulating against conductive, convective, and radiant heat transmission comprises three or more mutually parallel non-transparent sheets. The sheets may be attached to a retracting device from which they can be drawn to extend in mutually parallel relation and cover a building opening such as a window or onto which they can be retracted to uncover the opening. A number of resilient spacers in the form of collapsible devices are mounted within the apparatus to separate each pair of adjacent sheets and, thus, define a dead air space therebetween.At least one of the sheets has a highly radiation reflective surface located to face on a dead air space. Importantly, the collapsible devices are designed so as not to abrade or otherwise harm the reflective surface. The combination of these dead air spaces with the highly radiation reflective sheet surfaces results in an apparatus having extremely low emissivity that effectively impedes radiant heat transfer.

Abstract: Methods and compositions are disclosed for chemically bonding an antimicrobial compound to an hydroxyl bearing substrate such as cellulose, starches or leather. Cyanuric chloride (2, 4, 6 tri-chloro 1, 3, 5 triazine) is bonded to the substrate through the substrate hydroxyl and to the antimicrobial through an amine, guanido or quaternary ammonium group. The composition is: ##STR1## R.sub.1 or R.sub.2 may be chlorine or the same or different amine, guanido or quaternary ammonium containing antimicrobial. The bonding process is carried out in an aqueous solution having a pH of about 9 - 10.

Abstract: A cartridge, which forms part of a system for inducing air flow past a product capable of being vaporized, includes a hollow, apertured container and a support of strip material having a convoluted configuration mounted in the container. A quantity of the product is impregnated in the support of strip material. The container also houses a battery which has exposed terminals. The cartridge of the invention is used with an apparatus that has a housing defining a cartridge receiving cavity shaped and dimensioned to receive the cartridge container, a fan mounted in the housing to induce air flow through the cavity, and electrically powered motor for driving the fan and contacts electrically connected to the motor and located to contact the battery terminals when the cartridge is received in the cavity.

Abstract: A method and apparatus for dispensing small quantities of viscous materials in a reliable and accurately repeatable manner are described. A deformable tube which couples material in a reservoir to a discharge port is pinched by a valve at the same time the reservoir is pressurized. The material is dispensed in correspondence with the amount of reduction of the tube volume by the pinch valve. A simultaneous depressurizing of the material in the reservoir and the opening of the pinch valve enables a suck-back for a crisp cut-off of the material.