Abstract: An electrically-powered space heater has a boiler connected to supply a vaporized working fluid consisting of a 2 to 1 mixture of ethylene glycol and water to a slightly upwardly inclined, closed-end, finned-tube heater exchanger at a pressure of between -5 p.s.i. and 15 p.s.i. and at a temperature of between approximately 190.degree. F. and 250.degree. F. The combined internal volume of the boiler and heat exchanger is between about seventeen and twenty cubic inches with the boiler having an internal volume of about sixteen cubic inches and sized to be at least four times the internal volume of the heat exchanger. The heat exchanger has a length of between one and eight feet and the boiler is heated by an electric resistance heating means having a wattage of between 300 and 1200 watts, with the wattage increasing at a rate of approximately 150 watts per half cubic inch increase in internal system volume in the internal volume range set forth above.

Abstract: This invention relates to an archery bow characterized by a combination handgrip and forearm protector hingedly attached in closely-spaced parallel relation to the longitudinal axis of the bow defined by the limbs of the latter and the bowstring, the handgrip-forming portion of the combination unit extending laterally out to the side and rearwardly relative to the forearm-protecting portion so as to define an acute angular relationship therebetween. The handgrip and protector cooperate with one another to prevent rotation of the forearm holding the bow while at the same time concentrating the force exerted on the handgrip at the apex of the included angle therebetween which lies closely adjacent the hinge axis thereby causing the force applied by the protector against the forearm to be minimized.

Abstract: This invention relates to an improved telescopable cover for truck beds and the like characterized by a transversely-spaced pair of generally channel-shaped tracks opening toward one another and shaped to define a gutter in the bottom thereof alongside a slot separating upper and lower rail-forming surfaces. Mounted in these rails are a plurality of interlocking slot-forming panels, all but the lead panel of which has a downturned flange along its leading edge, a downwardly and rearwardly sloping cam surface adjacent the trailing edge thereof and an upturned flange along the trailing edge positioned and adapted to lock in behind the downturned flange on the leading edge of the panel therebehind so as to form a chain. A continuation of the lower rail slopes downwardly and forwardly to produce a ramp down which the panels slide and stack atop one another as they leave the confines of the upper rail, become separated and enter a storage area.

Abstract: This invention relates to a curved or angled multiple-round rifle cartridge magazine of the type designed for use with ammunition having tapered shell casings necked-down at their small end to accommodate a relatively smaller bullet characterized by a pair of negator springs attached for pivotal movement in spaced substantially parallel relation one behind the other to a sidewall of the shell chamber and a follower having front and rear side-opening spring-coil-receiving pockets for the coiled portions of the springs that permit the coils seated therein to tilt as the follower moves up through the chamber and the uncoiled portions of the springs change their angular relation to the latter and to the shell stack, both of the springs having medial portions lying between their coiled ends and the points of attachment to the magazine sidewall that curl inwardly toward the shell stack with the front spring of the pair being so located relative to the stack that its leading edge lies forwardly of the annular should

Abstract: The invention relates to an improvement in a multiple-shell weapon magazine or clip of the type employing either one or a pair of transversely-curved negator springs fastened to a particular sidewall of the cartridge chamber alongside the stack to lift the shells one-at-a-time through the open top thereof on a follower which is characterized by the spring or springs being so arranged and sized that the rearmost incurled edge of one seats within the annular grooves encircling the rear ends of the shells in the stack while the foremost incurled edge of the same or another spring curls around the bullets thereby alleviating any undue pressure applied to the shell casings by the medial portion of one spring or the adjacent edges of the pair that otherwise could cause the stack to jam. The invention also encompasses the method of preventing the shells from jamming in such a magazine by sizing and positioning the spring edges in the manner aforementioned.

Abstract: This invention relates to an internal snap ring removal tool which is characterized by a first cylindrically-surfaced clamp-forming element clampable onto a surface of the snap ring exposed outside its groove while the cylindrical surface of the aforesaid element lies in essentially tangent relation to the bore of the part containing the snap ring, and an eccentrically-bored collar that encircles the clamp-forming element for relative rotation therearound in contact with the bore of the part housing the snap ring thereby camming the snap ring free of its groove.

Abstract: This invention relates to a golf club cleaning machine characterized by a compartmented carousel having an annular tray-forming basket suspended therebeneath which holds several clubs in side-by-side upstanding circular relation for rotation therewith one-at-a-time past one or more nozzles which spray a high-pressure jet of cleaning fluid at least against the hitting face and sole of each club as it passes. An internal baffle having a concave undersurface redirects any cleaning fluid directed or splashing upwardly thereagainst back down onto the exposed portions of the club shafts and the club heads before it can reach the handgrips or otherwise escape from the machine through the opening in the lid. This baffle has inwardly-extending radially-directed slots that divide same into a plurality of individual flaps which deflect as needed to pass the club heads as they are inserted and removed from the tray.

Abstract: This invention relates to an improved tongue and groove connector for detachably fastening a stretchable fabric panel to a rigid frame which is characterized by a tongue-forming element attached along a line intermediate the side edges thereof to the panel in face-to-face relation to the latter, the tongue being of a width substantially greater than the groove is deep so as to define an insertable portion to be seated in the groove and a projecting portion extending therebeyond which defines a handhold. The invention also encompasses the novel method of making the aforesaid connection which comprises grasping the handhold to stretch the fabric to a point where the leading edge of the insertable portion lies adjacent the entryway into the groove and thereafter releasing the hold upon the projecting portion of the strap thereby permitting the stretched fabric to pull the insertable portion into seated relation in the bottom of the groove.

Abstract: This invention relates to a set of tools for removing lugless snap rings from the internal annular grooves provided therefor in parts containing internal bores, these tools consisting of a pointed tool for making an indentation in the base of the groove between the ends of the ring, a plunger-actuated ball magazine for placing a ball in the indentation thus formed preparatory to driving the ring aroung in its groove until one of its ends rides up upon the ball to create a gap therebeneath, a clamping tool for holding the ring in its groove against further relative rotation, a wedge for movement into the gap underneath the raised end of the ring, and a wedge-driving subassembly for moving the wedge into the gap to a point where the raised end of the ring is free of the groove and in position to be grasped and removed.

Abstract: This invention relates to a method for measuring uterine artery blood flow characterized by non-invasively positioning a transducer crystal capable of generating an ultrasonic signal within the vagina of a human female at the lateral aspect of the cervix underneath and in close proximity to the uterine artery, measuring the internal diameter of the artery by sweeping the transducer thereacross through an arc lying in a plane substantially perpendicular to the flow of blood therethrough for the purpose of determining its cross section, redirecting the transducer along the artery at an acute angle opposing the direction of blood flow therethrough while impinging upon the latter a pulsed series of ultrasonic signals of known frequency, detecting the reflections of the pulsed signals and measuring the shift in the frequency of the reflections for the purpose of determining a mean velocity of the blood flowing through the artery by applying the Doppler Effect principle, and determining the blood flow volume based

Abstract: A high impact device, as for producing an impact of 1,000 foot pounds or more, includes a ram which is engageable by a pair of rotating flywheels. The ram may impact a tool, as of a chisel type adapted for demolition purposes, or having a enlarged head for percussion purposes, or other types or purposes. By terminating the engagement of the flywheels with the ram prior to its impact against a tool or similar object, the vibration normally associated with a demolition or percussion device is avoided. Such termination of engagement also reduces reverse shocks and conserves the energy of the rotating flywheels. In one embodiment, the flywheels are moved inwardly and outwardly of the ram through a linkage connected to a solenoid, with each flywheel supported between a pair of arms and alignment of the axis of each flywheel with the side of the corresponding ram being maintained by a torque tube extending between the arms.

Abstract: This invention relates to a backpack type carrier for portable oxygen dispensers characterized by a padded frame, shoulder straps and a hip-encircling belt for supporting the frame on the back of the wearer, a flap formed of breathable material having a lower marginal edge attached to the padded frame in the area of the belt and extending upwardly therefrom so as to cooperate with the frame to define an open-topped pouch for the reception of a portable self-contained oxygen dispenser, retaining members connecting portions adjacent the sides of the flap to the frame for confining the sides of the oxygen dispenser while simultaneously permitting by-products exhausted from the latter to escape into the atmosphere, and a pocket on the outside of the flap for storing the oxygen delivery tube and associated nosepiece when not in use.

Abstract: A wall-mounted cable sheath asembly defining a raceway for housing and protecting insulated electric cables and the like is disclosed, one part of which comprises a springable channel-shaped housing having an open base produced by a pair of opposed inturned essentially coplanar flanges depending from its divergent sides, the other part comprises a clip for fastening the housing to a supporting surface that has a centrally-located more or less planar web which carries along its top and bottom edges a pair of parallel generally V-shaped flanges, each such flange having divergent outboard wings spaced apart and inclined to form abutments for the sides of the housing when sprung outward and released to spring into place thereagainst, and the free edges of the wings of each such V-shaped flange terminating short of the plane of its own web a distance selected to accept the inturned flanges of the housing that spring into place therebeneath along with the hooked end of the installation tool.

Abstract: This invention relates to a method for seating a pitot tube type flow meter against the remote wall of the pipe in which it is being installed and subsequently sealing same within the tubular fitting through which it enters the pipe, such method comprising using a movable abutment to push compressible packing contained within an annular space provided between the outside of the pitot tube and the inside of its tubular fitting against a fixed abutment on the pitot tube thereby forcing the latter inward until it bottoms on the remote pipe wall and thereafter continuing to advance the movable abutment to narrow the gap between it and the fixed abutment so as to compress the packing between the two until it expands to fill the annular space and form a fluid-tight seal around the pitot tube. The invention also encompasses the novel apparatus for carrying out the above-described method.

Abstract: This invention relates to an improved laterally-adjustable ring-type riflescope mount for attachment to rifle barrel receivers of the type having a one part of a dovetail connection atop thereof defined by a planar top surface alongside of which lie a spaced parallel pair of upwardly-divergent longitudinally extending groove walls, said mount being characterized by a base having a planar bottom wall adapted to rest upon the top surface of the receiver in supported relation, a pair of sidewalls, a pair of upwardly and inwardly-convergent internally-threaded sockets in the sidewalls each having the axis thereof perpendicular to their respective upwardly-divergent dovetail groove walls, and a pair of large-headed screws screwed into the sockets with the heads thereof overlapping the upwardly-divergent groove wall lying in opposed relation thereto, these screws cooperating with one another when screwed in tight against the divergent dovetail groove walls to hold the base down snugly atop the receiver, and these s

Abstract: A carnation plant known by the cultivar name Lindsey was developed through a breeding program and is particularly characterized as to uniqueness by its dwarf growth habit and the following combined characteristics: upon pinching a rooted cutting, forms 3 to 5 lateral stems 21 to 27 cm long, each developing a terminal flower and 3 to 5 secondary buds which open intermittently after the terminal flowers senesces; light pink flowers 4.5 to 6.0 cm in diameter with a slight clove fragrance; can be grown under specified environmental conditions either as a single pinched plant per 10 cm pot or 3 pinched plants per 13 cm pot, which results in an ideal new flowering house plant.

Abstract: A carnation plant known by the cultivar name Maroon Bells was developed through a breeding program and is particularly characterized as to uniqueness by its dwarf growth habit and the following combined characteristics: upon pinching a rooted cutting, forms 4 to 6 lateral stems 18 to 25 cm long, each developing a terminal flower and 2 to 4 lateral buds which open intermittently after the terminal flowers senses; brilliant maroon flowers 3 to 5 cm in diameter with a slight spice fragrance; can be grown under specified environmental conditions either as a single pinched plant per 10 cm pot or 3 pinched plants per 13 cm pot, which results in an ideal new flowering house plant.

Abstract: A carnation plant known by the cultivar name Crestone was developed through a breeding program and is particularly characterized as to uniqueness by its dwarf growth habit and the following combined characteristics: upon pinching a rooted cutting, forms 3 to 5 lateral stems 18 to 25 cm long, each developing a terminal flower and 4 to 6 lateral buds which open intermittently after the terminal flowers seneses; white flowers 4.5 to 5.5 cm in diameter have a purple picotee edge, but without fragrance; can be grown under specified environmental conditions either as a single pinched plant per 10 cm pot or 3 pinched plants per 13 cm pot, which results in an ideal new flowering house plant.

Abstract: A carnation plant known by the cultivar name Redcloud was developed through a breeding program and is particularly characterized as to uniqueness by its dwarf growth habit and the following combined characteristics: upon pinching a rooted cutting, forms 3 to 6 lateral stems 22.0 to 26.0 cm long, each developing a terminal flower and 4 to 6 secondary buds which open intermittently after the terminal flowers seneses; red flowers 5.0 to 6.0 cm in diameter with a slight fragrance; can be grown under specified environmental conditions either as a single pinched plant per 10 cm pot or 3 pinched plants per 13 cm pot, which results in an ideal new flowering house plant.