Abstract: A dispensing device for dispensing measured doses during each dispensing cycle. A fluid tight bottle is provided with a well at its bottom. A hollow shell fits in the well and includes an opening permitting flow of material from the bottle into the shell. A tubular stem extends from the shell through the top of the bottle and terminates in a dispensing spout. Different embodiments provide different arrangements for supplying air to an air chamber in the top of the bottle so that pressure within the bottle can equalize at the end of each dispensing cycle. If the bottle is not a squeeze bottle, air is supplied to the bottom of the bottle to displace the liquid in the shell which is dispensed through the stem upon inversion of the bottle. Additional embodiments of the invention are specially constructed to dispense powders and to allow the dosage of each dispensing cycle to be adjusted.

Abstract: A mole trap has a frame that includes two spikes driven into the ground on opposite sides of an active mole run. A pair of wire loops are threaded through ground level eyes and are embedded in the ground to encircle the mole run. When a mole passes through the run, a triggering mechanism is tripped and a tension spring forcefully pulls the loops upwardly to capture the mole in one of the loops. In setting of the trap, the spring is placed under tension only after the other parts have been properly positioned. A special tool is used both to embed the wire loops and to place the spring under tension.

Abstract: A fishing bobber having means for illuminating portions thereof for increased visibility in adverse lighting conditions. An elongated member projects outwardly from a body portion of the bobber and is illuminated by a light emitting diode (LED) housed within the bobber. A series of annular rings and a beveled end portion of the member are illuminated by the LED. Irregularities formed within the member also provide areas of enhanced illumination. The bobber is generally elongated with a tapering cross-section which reduces the resistance felt by the fish when initially striking the bait.

Abstract: Apparatus for bending flat thermoplastic laminates into structural shapes such as angles, channels, Z sections, J sections and I sections. In order to bend the laminate into the desired shape by appropriate tooling, heat is applied in a localized manner only to the area that is to be bent. The application of heat is sufficient to heat the laminate to its softening temperature in the bend area, and the plies of the laminate can thus slip in the bend area only as bending force is applied so that the bend can be made without the need to heat the entire laminate to the softening temperature.

Abstract: A waste water treatment facility includes a gravity flow treatment bed which receives waste effluent from a plurality of individual septic tanks. The treatment bed includes a bottom layer of small gravel particles, a layer of larger gravel particles covering the bottom layer, a strip of crushed limestone, a layer of straw or hay on the large gravel layer, and a layer of topsoil in which reeds are planted for treating the effluent. A perforated header pipe distributes the incoming effluent across the bed, and a perforated collection pipe collects the treated effluent and delivers it to a sump. The effluent passes from the sump through a chlorinator and a chlorine contact chamber before being discharged to the ground.

Abstract: A device that converts for use as both a child car seat and a stroller. A molded plastic seat is mounted on a tubular frame to receive a child. Front and rear wheel assemblies extend when the device is used as a stroller and retract when the device is used as a car seat. A handle extends for use as a stroller and retracts when in the car seat mode of use. The components can be locked in the extended position. The extension and retraction of the wheels and handle are effected pivotally and telescopically in different embodiments of the invention.

Abstract: A collapsible cargo carrier is the subject of the present invention. The carrier comprises a rigid framework for supporting cargo and an axle and wheel assembly for moving the cargo over a surface. A generally rectangular framework supports the cargo and is coupled with the axle by triangular supports which are releasably hinged to the cargo carrying framework. By removing two locking pins, the axle is released from the framework and the triangular supports can be collapsed against the cargo carrying portion of the framework. Mounting brackets are provided for storing the axle and wheel assembly on the side of the framework when the other components have been collapsed. Accessories are provided for accommodating larger loads and for facilitating movement of loads by providing elongated handles on the carrier.

Abstract: A control circuit for a closed loop command system having an output which is adjusted to conform with an input command level. A pulse generator provides digital pulses with durations representative of the output of the system. Command pulses are generated by the system pulses and have durations representative of the input command. Each pulse is applied to logic gating along with the complement of the other pulse, with the logic gating providing a signal indicating whether the system pulse or the command pulse is longer. The last gate signal is retained in a flip flop memory and is used to adjust the output power level up or down depending upon the result of the pulse length comparison.

Abstract: A cover for closing the opening of a railroad hopper car which is adapted to be hingedly coupled to the car is the subject of the invention. The cover is constructed so as to provide a degree of flexibility which increases the ability of the cover to withstand downward vertical forces. The cover comprises a member which presents a generally vertical side wall section that extends around the car opening and a top wall that is integral with the side wall and extends over the opening. The cover is formed in a generally arcuate configuration along a line passing through a horizontal plane and extends away from the plane at a first angle of curvature. A generally flat area along the top wall of the cover is formed in a generally arcuate configuration along a line passing through the same reference horizontal plane while extending away from this plane at an angle of curvature that is greater than the first mentioned angle of curvature.

Abstract: Normally wasted heat from the pilot burner and flue of a fuel fired hot water heater is used to preheat the water supplied to the main tank. An auxilliary storage tank receives incoming cold water. Water from the storage tank circulates through a conduit loop which extends in a spiral pattern through the flue and also through a special heat exchanger which concentrates heat generated by the pilot burner. The water that is preheated in the conduit loop is returned to the storage tank for storage until required by the main tank, at which time the preheated water is delivered to the main tank through a transfer conduit. Alternative embodiments are arranged to effect automatic flushing of the conduit loop when hot water is withdrawn from the main tank.

Abstract: A roll forming machine comprising unitary upright members mounted on a support platform for housing a plurality of pairs of upper and lower rollers. Upper rollers are coupled with bearings mounted in vertically adjustable guide blocks to allow adjustment of the spacing between the rollers. A drive chain is coupled with the rollers and its serpentine winding reduces the resulting torsional forces exerted on the machine during forming operations.

Abstract: A method and cleaning composition are the subject of the invention. The cleaning composition may take the form of an aqueous solution, a powder, or a concentrated powder or aqueous solution for addition to a cleaning solution. The additive includes an amine or polyacrylamide flocculant and a betaine stabilizer. When used in a detergent solution, the flocculant causes contaminates introduced into the water to precipitate and quickly settle to the bottom of the cleaning bucket. This keeps the upper part of the detergent solution clean and prevents the mop from picking up and subsequently redepositing the contaminates each time it is dipped in the bucket.

Abstract: A method for washing and vacuum drying long necked laboratory flasks. The apparatus includes a cabinet which presents a washing and drying compartment and a pump and rotary spray arm. A special rack which can be rolled into and out of the compartment includes a central manifold and a plurality of distribution arms extending radially from the manifold. Upright spindle tubes extend from the distribution arms to receive the inverted flasks such at that the tubes extend through the narrow necks of the flasks with the open ends of the tubes located within the bodies of the flasks. A diaphragm coupling allows water to be pumped to the manifold for delivery to the spindle tubes during washing and rinsing cycles. The tubes spray the water directly inside of the flask bodies for thorough washing and rinsing. A vacuum conduit extending from the manifold carries a seat which engages a gasket to couple the manifold with a vacuum blower when the rack is moved into the cabinet.

Abstract: An improved planing head for a wood planar is the subject of the present invention. A cylindrical planing head has a plurality of slots which receive the cutting blades and gib means for holding the blades in place during the planing operation. The slots and gibs are designed so that the blade sits on the bottom of the slot and tightening of the gib forces the blade down against the slot bottom. This assures that the blade will always remain in proper alignment. It is preferable to employ jack screws in the bottom of the slot so as to provide means for adjusting the blade height as needed. In either case, the only requirement for realigning a blade when an old blade is taken out and a new blade is put in is to be sure that the bottom of the blade sits on the bottom of the slot where it will be in the exact same position as the previous blade.

Abstract: A gear-shift mechanism for motor-vehicle multi-step transmissions with interruption of traction is designed in the manner of a semi-automatic transmission. Manual control switched 80, 81 connected to a control unit 82 serve to actuate shift forks via servo systems 90. Sensors coact with rotating marks on the power take-off shaft and with marks on the speed gears which are driven by the drive shaft. The relative phase position .phi. between the speed gears and the gearshift sleeves driven by the power take-off shaft is determined by a phase detector 75. When a pre-determined phase position is reached, these elements are brought into engagement with each other.

Abstract: In synchronizing mechanisms for clutches having arranged between the clutch body (10) and the axially displaceable gear shift sleeve, each of which are provided with a toothing, a synchronizing ring (14) with teeth (33) having inclined check faces (35, 36) provided on their ends facing the gear shift sleeve, which check faces (35, 36) coact with matching check faces (37, 38) on the ends of the teeth (34) of the gear shift sleeve, it is provided for the purpose of reducing cold scratch that the check faces on the ends of the teeth (34) of the gear shift sleeve are designed asymmetrically in such a manner that the check faces (37) leading in the sense of rotation (28) have a greater axial extension than the check faces (38) trailing in the sense of rotation.

Abstract: A debris collector for wide belt sanders and the like including an upper assembly. A plurality of posts include upper ends connected to the upper assembly and lower ends connected to a lower assembly. A bag assembly extends between the upper and lower assemblies and is shaped to receive debris.

Abstract: A re-usable examination booklet for the administration of written tests includes overlaid question sheets bound together with the unbound edge of each sheet overlapping the underlying sheet. An answer sheet may be inserted in the booklet beneath the question sheets. Answer areas on the answer sheet are arranged in columns extending along the unbound edges of the question sheets to locate the answer areas in close proximity to the corresponding questions on the question sheets. A modified booklet includes question sheets having openings arranged in columns extending along their unbound edges so that the selected answers can be marked through the openings onto the answer areas of the answer sheet.

Abstract: A method and composition for use in preparing red blood cells for use as indicator cells to detect the presence of antigens and antibodies in biological fluids is the subject of the present invention. Freshly collected human or animal erythrocytes are washed six times with isotonic saline, and suspended to a hematocrit of four percent (volume/volume) with isotonic saline. An incomplete antibody, specific for the antigen or antibody to be detected, in a quantity less than that which would cause irreversible agglutination, is added to the erythrocyte solution. The mixture is incubated, washed, and suspended to a hematocrit of 3-5 (v/v) with isotonic saline. A second antibody, immuno specific for the first antibody and in an amount sufficiently great to immunologically bind substantially all of the antibody carrying red blood cells but not so great as to cause irreversible agglutination, is attached to the erythrocytes. This mixture is incubated, washed, and suspended to a hematocrit of 0.