Abstract: An instrument to measure the concentricity of a piston rod relative to its cylinder, has an elongate cylindrical support on which are slidably mounted a pair of brackets provided with V-shaped notches embracingly to engage the cylinder and hold the support in parallel relation to the cylinder. At the outer end of the support and disposed at right angles thereto is a feeler probe to engage the piston rod. A calibrated dial, having an associated pointer, is carried by the support and the pointer is articulated to the feeler probe for causing the pointer to indicate in the dial the degree of concentricity of the piston rod.

Abstract: A gear tooth flank testing apparatus and method wherein there is provided a housing erectable upon a bed or the like of a gear cutting machine. A measuring feeler is moveably arranged at the housing by means of two cross-wire arranged carriages having associated drive and displacement path measuring devices. The measuring feeler is moveable along two coordinated axes intersecting the axis of the workpiece to be tested. A control and evaluation circuit moves the measuring feeler along a tooth flank of the workpiece and compares the actual settings of the measuring feeler with predetermined reference settings. In particular, at the housing there is arranged a feeler bolt which can be pressed in spaced relationship from the measuring feeler against two neighboring tooth flanks of the workpiece.

Abstract: A shingle locating gauge for use in aligning and applying roofing or siding shingles has a pair of generally parallel side supports attached to an elongated alignment guide. A load spreading bar and an elongated support member extend generally parallel to the alignment guide and are each connected to the side supports. Mounted on the support member are a pair of alignment stops and a clamp adapted to apply force against the load spreading bar.

Abstract: The panel cutting guide includes a primary elongated measuring rod and a pair of secondary measuring arms releasably secured thereto in spaced parallel relationship. A pair of marker elements are slidably mounted on each of the secondary measuring arms, on opposite sides of the primary measuring arm, with each marker element including a releasable locking member for securing the marker in any of a plurality of positions on its associated secondary measuring arm. The adjustability of the secondary measuring arms and the marker elements thereon enable the operator to position the marker elements at the perimeter of a wall opening, such as an electric receptacle box. With the marker elements in position, the panel cutting guide can be placed on a panel to be cut, so that the marker elements will locate the opening to be cut in the panel in order to accommodate the wall opening.

Abstract: A wheel clamp for mounting a wheel aligning tool on a wheel rim and in a plane parallel to that of the wheel rim is disclosed. A lower bracket, a center sliding bracket and an upper clamping bracket are all mounted on a pair of parallel rods. The lower bracket is fixed to one end of the parallel rods, and two rim-engaging fingers project rearward therefrom. The upper clamping bracket slides freely on the parallel rods, and a single rim-engaging finger projects rearward therefrom. The upper sliding bracket may be positioned on the parallel rods so that the three rim-engaging fingers bear against either the inside surface or the outside surface of a peripheral lip found on the wheel rim. A clamping mechanism mounted on the upper clamping bracket fixes the upper bracket to the parallel rods and stresses the three-rim engaging fingers against either the outside or the inside surface of the peripheral lip, depending on which direction a knob on the clamping mechanism is turned.

Abstract: A trajectory compensating device for use with a rifle scope used in aiming a firearm is improved by including in the reticle of the rifle scope two sighting planes and including on the elevational turret of the rifle scope a turret cap which includes an indicia carrying member. The two sighting planes in the reticle are a primary sighting plane and a secondary sighting plane. The elevational turret of the rifle scope includes an indexing mark located thereon. The elevational turret controls the elevational correcting system of the rifle scope by rotation of the turret cap. The indicia carrying member includes at least two indicia markings. One of these indicia markings is correlated to correspond to a calibration distance wherein the rifle scope is sighted in utilizing the primary sighting plane of the reticle.

Abstract: The disclosure herein in directed to aligning devices for aligning a towing vehicle with a trailer wherein the towing vehicle has a ball and the trailer vehicle a socket carrying arm. A pair of magnetic bases having vertically positionable wands are placed one on the towing vehicle and one on the trailer. Each wand has an elastic gromet slidable along its length for retaining a signal flag on its upper side and to permit passage between the wand and the gromet of a plumb line. There are two plumb lines and two plumb bobs which when the lines are vertical and the two plumb bobs positioned immediately above the ball and the trailer socket, the alignment flags will be horizontal so that when the vehicle is backed toward the trailer unit the flags cross then hookup can be effectuated.

Abstract: Disclosed is a system of poles for aligning courses of brick of a brick wall wherein there is a pole disposed at each corner of said wall and at least one pole disposed intermediate between said corner poles, all of said poles containing line blocks which carry a tensioned line therebetween, the line block on the intermediate pole for ensuring that the line remains tensioned between said corner line blocks and all of said line blocks being synchronously adjusted in vertical height so that said tensioned line defines the horizontal component of each course of brick.

Abstract: Low rank coal is dewatered and upgraded by heating a coal/water mixture at 150.degree. to 300.degree. C. at a pressure preventing water vaporization, mechanically separating the water, then heating the coal at 300.degree. to 400.degree. C. at a pressure allowing water vaporization.

Abstract: A method of drying articles of ceramic flatware supported on a mould comprises passing heated air over an exposed surface of the article, the air flow being directed such that it flows from the periphery towards the center of the article.

Abstract: A heat exchanger including a separating chamber in the form of a prism having a substantially horizontal center axis and axially elongated. The separating chamber having a collecting chamber disposed beneath it has an inlet duct opening in the separating chamber and connected to one wall of the separating chamber, and an outlet duct opening in the separating chamber and connected to a wall of the separating chamber. The outlet duct may be connected to the wall to which the inlet duct is connected or to another wall parallel to the wall to which the inlet duct is connected.

Abstract: An enclosure for drying and storing grain or crops utilizing solar energy wherein an entire structural side (wall or roof) is of transparent material. An inner wall is positioned adjacent the transparent wall and an absorbent material is positioned intermediate the transparent and inner wall. The inner and outer walls form a duct for the passage of air past the absorbent material. The heated air is directed to a plenum/manifold which in turn is connected to a tubing having a multiplicity of perforations (ports) therein. The tubing extends back and forth in an array over the entire floor of the enclosure. The air passing upwardly through the ports in the tubing array provides a uniform distribution of heated air to the crops placed in the enclosure.

Abstract: A protective inner sole having a laminated, two layer foam construction is provided. The lower or base layer comprises an elastomeric foam having high resilience and elasticity and the top or face layer is less resilient and less elastic. The thickness of the base layer is substantially greater than that of the face layer.

Abstract: A stacked thermostat assemby includes a lower heat deformable blade, a conductive intermediate stiff spring blade, and a conductive upper less stiff spring blade with all the blades being supported, secured, and spaced apart at one end by interposed insulators. Electrical contacts on the conductive blades include structure for transmitting movement between the heat deformable blade to the upper blade to make and break an electric circuit and control heat to a medium sensed by the thermostat such as an iron soleplate on which the thermostat may be mounted. To this standard construction an improvement is provided in the temperature setting control mechanism of single structural integral bracket extending over the blades and mounted on and above the supported end, the bracket having an enlarged integral portion on its free end. A smooth unobstructed bore in the integral portion forms an elongated bearing guide between the ends of and over the blades.

Abstract: A tamper-resistant, identification device employing a myriad of modes of identifying indicia placement, wherein the device comprises a flexible band having opposed first and second ends wherein one of the ends has at least two apertures and the other end has corresponding rows of apertures wherein by placing the device in encircling configuration, so as to obtain alignment and coincidence of selected apertures, the two ends may be securely fastened together by a variety of fastening means. Additionally, the availability of a choice of identification means and fastening means provides an identification device of high, tamper-resistant character especially useful in high security risk applications. Other selective combinations of identification means and fastening means also provides an identification device which is highly versatile having a plurality of applications of end uses.

Abstract: The apparatus according to the invention maintains traditional calendar sequences and provides an intelligible adjustment and reading of data from any point of view and in any range of years. It also makes it possible to read data simultaneously in two calendar systems. The apparatus consists of two mutually movable members which are provided with indication members for individual calendar data. Their mutual position is set up according to a code marking of the actually desired month.

Abstract: Universal round calendar of a simple design which may be employed for various calendar systems. It provides traditional sequences of data and their intelligible and quick readjustment on another desired date. The universal round calendar may be employed as a part of a pocket watch or wrist watch without the necessity of any adaptation of the design of the watch mechanism, or it may be used as a complement of electronic digital watches. It also provides a direct function coupling between a calendar and a watch. The calendar, according to the invention, consists of two mutually revolving discs carrying indication marks for calendar data, the mutual position of which corresponding with the desired month in any range of years, is set up according to the code marking of the desired actual month.

Abstract: A marker for gravesites is provided with an identification holder which has two oppositely located parallel channels of different depth, the transparent shield having opposite edges received in each of the channels and a spring located in one of the channels for engaging the shield to urge the shield fully into the opposite channel.

Abstract: A folded paper box is provided which locks in the erected condition and has apertures in the exterior panels through which a label insert sheet is visible and interior panels which cover the apertures and insert sheet when in place.

Abstract: An apparatus for encouraging or instructing personal hygiene having a non-animated character figure of a substantially three-dimensional configuration and an audio producing means in combination with an electrically operated toothbrush. A toothbrush is supported by the character figure. Removal for use of the toothbrush activates the audio producing means for a defined period. The audio producing means recites a melody or message or combination thereof. The audio producing means will continue to operate when deactivated when the toothbrush is returned to the character figure or when the audio producing means is manually deactivated, however, when deactivated the audio producing means continue to the end of the message or melody then in progress.

Abstract: A semi-automatic double action revolver having an axially slidable and rotatable barrel aligned with a lower chamber of a top pivotal swing-out cylinder. The trigger mechanism includes a safety rod to prevent the opening of the cylinder while the hammer is cocked, or not in the rest position, and a transfer bar is provided between the hammer and the firing pin so that the firing pin can only be actuated when the trigger has been pulled all the way back, beyond the double action and single action hammer cock position.

Abstract: A firearm or weapon is disclosed herein having a stock incorporating a plurality of elongated barrels for releasably holding a load or ammunition tube and a hand grip having a trigger mechanism operably coupled to an electronic firing circuit for igniting or detonating the ammunition held in the tube. A sequence control circuit is connected between the firing circuit and the trigger for sequentially and electronically detonating selected ones of a multiplicity of firing chambers within the ammunition tube enclosing powder, wadding and shot respectively. The ammunition is loaded serially in the elongated tube in an end-to-end relationship so that the loaded tube provides a unitary construction and wherein the firing circuit is embedded within the material thereof in fixed spatial relationship.

Abstract: A signalling device for use when ice fishing which includes a flag that is retained in a generally horizontal retracted position when the device is set for use and moved to an upright signalling position when the fish takes the hook and pulls fishing line from a reel. The device also includes a frame supported on the ice in transverse relation to an ice hole in which the frame includes a unique structure which enables it to be easily lifted from the ice even if it is placed on the ice surface when the surface is somewhat slushy and becomes frozen to the ice thereby facilitating the fisherman pulling out a fish or removal of the device when it is desired to leave the fishing area.

Abstract: A toy shaving kit to be used with a doll including a toy razor and a felt tip pen containing water soluble ink for applying "hair" to the face of a doll. The toy razor includes a holder and a face-conforming sponge blade which may be dipped in water and applied to "shave" the "hair" from the face of the doll.

Abstract: A toy toilet includes a toilet bowl, a seat supported by the toilet bowl, a hinged cover for the seat, and a reservoir. Positioned in the reservoir is a cylinder and piston arrangement having a fluid conduit to the toilet bowl and a mechanical linkage to the cover so that the movement of the cover moves the piston to "flush" the toilet.

Abstract: A toy racing set including at least one powered vehicle, a length of flexible track, and a carrying case. The carrying case folds out to form a track upon which the vehicle may run. The case may also be used when closed with the flexible track to provide a loop-the-loop track for a powered vehicle.

Abstract: A toy including a housing having a front panel, a compass having a magnetic needle mounted on the panel, a pair of LED's on opposite sides of the compass, a sound alarm on the panel, and an electronic circuit, having a pair of contacts, which energizes one of the LED's and the sound alarm in response to the needle being pivoted in one direction to close one of the contacts, and which energizes the other LED and the sound alarm in response to the needle being pivoted in the other direction to close the other contact. The needle is pivoted by strategically positioned bar magnets external of the toy. The electronic circuit can be manually reset or automatically reset after a predetermined period.

Abstract: A crib toy having a shaped outer shell with a downward facing U-shaped aperture adapted to fit over a crib rail. The shell houses an automatic reversing mechanism which drives an output roller positioned in the aperture for moving the toy back and forth along the rail.In a preferred embodiment, the reversing mechanism includes a motor which rotates first and second cam surfaces at a first speed and first and second cam followers at a second speed causing the cam followers to drive first and second gears to operate the output roller. The preferred embodiment combines a music box with the reversing mechanism to provide a synthesis of music and movement for a child.

Abstract: A series of wick ropes are pressure fed with herbicide. They are moved along weeds to be killed at about a 35.degree. angle so that the ropes wipe along the weeds applying herbicide thereto. Each rather short section of rope is fed by a different reservoir so that if the applicator is on a slope as by a roadside, the head upon the ropes at one end is not much greater than upon the other end.

Abstract: A mulcher having a roll of film, a ridger for making a planting ridge to be covered by the film, means for keeping the film taut over the ridge while soil is placed on the film edges, and the film roll is rollably supported to insure dispensing of the film from a fixed position throughout the mulching.

Abstract: A horticultural enclosure having a tubular frame and a cover having pockets by which it is fitted on the frame, with sufficient tension so that flaps in the cover will open to admit rain to the enclosure and will also open under the weight of condensed water to admit air to the enclosure.

Abstract: A four sided collapsible plant enclosure is described for supporting and maintaining growing plants safe from rodents and other intruders. The structure described includes four sides, each side being hinged to an adjacent side. The hinged sides permit collapsing of the structure for storage. Two adjacent sides of the structure are selected to have a width less than the remaining two adjacent sides of the structure, thereby permitting the enclosure to be collapsed for efficient and safe storage.

Abstract: A self-watering planter having a base divided into two compartments, one for soil and one for water, separated by a divider wall. A wick extends from the water compartment over the divider wall into the soil compartment. A common upper rim encircles both compartments and a cover which defines a single compartment is seated on the rim, so that the cover forms with the base an enclosed space communicating with both lower compartments. Thus evaporation from either lower compartment is recycled. The lower surface of the cover top wall can be dimpled to distribute condensate more evenly over the plants.

Abstract: An arrangement in a gate (10) wherein a cam track (23) is provided for lifting the gate on the pivot axis (12) thereof when the gate is being swung to opened position. An abutment (34) is provided in the cam track for a member (18) connected with the gate. The abutment is arranged to maintain the position in the cam track when the gate is being swung to opened position and is arranged for delayed yielding under the pressure exerted against the abutment by the gate (10) over the member when the gate is in opened position and is lifted by the cam track.

Abstract: A dual window assembly comprises an interior window unit adapted to be mounted within an opening in a building wall and an exterior window unit adapted to be mounted on the exterior of the opening. First and second frames of the units have respective first and second mounting flanges which are to be secured together by means of connector strips.

Abstract: The disclosure concerns an arbor for securing a tool, or other rotating device to a chuck of a drill or the like. The arbor comprises a stamped member folded to have an upper wall with an opening therein to receive a screw in order to secure the tool to the upper wall, and side wings from opposite sides of the upper wall are bent down toward each other. The portions of the wings adjacent the upper wall are flat for being grasped by a tool, like a wrench. The upper portions of the wings further from the upper wall are curved to receive and guide the shaft of an inserted tool fastening screw. The lower portions of the wings shaped so that they meet each other along the lateral edges and so that they provide a chuck engaging member of hexagonal cross-section. The upper wall is cambered for driving the lower portions of wings together as the tool is tightened onto the arbor.

Abstract: A plastic bearing and wear surface is disclosed which has low friction fibers protruding from its surface. The bearing is made by filling a plastic matrix with low friction fibers whose mechanical properties relate to those of the matrix in such a manner that when the matrix is machined, the matrix material will selectively be removed leaving some of the fibers imbedded in the matrix with their free ends protruding from and distributed over the machined surface.

Abstract: Method and apparatus are disclosed for sharpening the blade of a rotary mower. Sharpening is accomplished by utilizing the upward vacuuming action created by the rotation of the blade. At present blades having downwardly turned cutting edges and upwardly turned trailing edges have been found to create the requisite vacuum for the operation of the sharpening apparatus.

Abstract: A method of grinding tufting machine knife modules having a plurality of knives fixed in a common knife block in spaced parallel disposition. In a first form a remote knife of the block is secured in a fixed disposition and the other knives are loaded toward that knife with the free ends of the knives in a mutual abutment, the composite end face of all the knives thereafter being simultaneously ground to form an outwardly concave surface configuration in the composite end faces. In an alternate loading arrangement the blades on opposite sides are loaded toward the middle of the module. In a preferred arrangement the knife blades are maintained in spaced parallel disposition but collectively deflected to bring the end faces into co-planar relationship and thereafter ground in conformity with the common plane. A jig and grinding set up are illustrated for this latter arrangement.

Abstract: An abrasive pack for use with an elongated hub having a plurality of spaced slots each extending along the length of the drum and with a plurality of the abrasive packs each extending outwardly from the drum and each positioned adjacent an individual one of the slots, each pack including a plurality of abrasive flaps of abrasive material stacked together to form a pack, the abrasive flaps each including a plurality of slits located periodically along the length of the flaps and with each slot extending partially along the height of the flap for increasing the flexibility of the flaps to bending and twisting, an attachment member means having an end portion and a loop portion; a supporting strip positioned adjacent the sides of the end portion of the attachment member to support and retain the end portions; the supporting strip including a plurality of slits located periodically along the length of the strip and with each slit extending partially along the height of the strip for increasing the flexibility of

Abstract: Power drive apparatus is adapted for mounting beneath the forward or lower row of a telescopic seating system. The drive apparatus includes a frame which is adapted to be connected to the forward row of the seating system and extend beneath it. A reversible electric motor is mounted centrally of the frame with its axis transverse of the direction of travel of the unit. First and second rollers (as distinguished from wheels or endless track) are mounted to the frame for rotation about respective horizontal forward and rear axes extending transverse of the direction of movement of the rows between the use and storage positions. Each roller has an exterior covering of compressible, resilient material, preferably synthetic rubber. The rollers are preferably located in front of and behind the motor respectively to provide a four-wheel-drive effect. The apparatus fits beneath the deck of the lowest row in the seating system and can easily be retrofitted to an existing system.

Abstract: A poured concrete building deck structure of the type having corrugated sheet metal form deck wherein the edges along sides parallel to the corrugations of the major form deck at the edges of the deck and edges of internal openings through the deck are formed by a corrugated sheet metal form having corrugations at about 90.degree. to the major portion of the corrugated sheet metal form deck, the ends of the deck around all sides of the building or around all sides of the internal opening being spaced a distance from the desired building line or opening and an edge bracket fastened to the outer ends of the sheet metal forms extending outwardly to the desired relationship to the building line or opening and providing a means to retain poured concrete.

Abstract: The object of the invention is to provide a building structure (1) that is free-standing, clear-span, for bulk storage of materials such as fertilizer, salt, sand, grain, coal, any granular-type material that must be covered and the like. The structural uniqueness of the interface joint (21) of the building structure (1) permits such building to be of variable straight-line, convex, concave profiles, or combinations of such profiles, to spatially accommodate not only materials to be stored, but also equipment to prepare such materials for storage.Said building structure (1) has a series of frustums, with each frustum being in and of itself an independent and self-supporting structure and with each frustum having a plurality of trapezoidal-shaped panels (5) having bottom and top plates (7) and (9). The panels (5) of a lower frustum are joined to the panels (5) of an upper frustum through their interface joints (21) of respective mating top plates (9) and bottom plates (7).

Abstract: The invention is an improved awning used on homes, mobile homes, and modular homes, where the area under the awning may be subsequently converted into an additional room. The structure provides a rigid insulating panel between the roofing material panels and the supporting framework to reduce the conduction of temperature extremes and the elimination of condensation on the inside surface of supporting framework.

Abstract: A shelter truss comprising a unitary trapezoidal skeletal component, a plurality of which when connected forms a completely framed superstructure of a building, ready to accept exterior covering, wiring, plumbing, insulation, flooring, interior walls, ceilings and the like. No additional structural framework is required, except interior room division. The building shape in a vertical plane is complete when the component is erected.

Abstract: Reinforced tread assemblies for a stairway system having a tread formed of a reinforced concrete material and supported on a metal base member bonded to at least a portion of the underside of the tread to create a laminated construction. A nose section is integrally coupled to the base section and extends upward to protect the front portion of the tread from damage during use.

Abstract: A self-supporting staircase of which the treads are mounted on structural elements which interconnect in series to form an ascending center post. Each structural element comprises two spaced cylinders connected by a radial arm, the upper end of the first cylinder telescoping with the lower end of the second cylinder of an adjacent element in the series. Means is provided for securing the elements together. Thus the assembled elements are horizontally offset from each other to the extent required by the successive treads mounted on the elements.

Abstract: A substantially crack-free load-bearing wall of prefabricated building elements and method of producing the same comprising a plurality of pre-fabricated building elements made of light-weight concrete each having a modulus of elasticity less than 8,000 kg/cm.sup.2. The elements are substantially rectangular in shape and have longitudinal grooves on their respective longitudinal edges. The elements are first shrunk by steam hardening or by storage for a pre-selected period of time and then arranged side by side with their lateral side edges in abutting relationship so that the grooves of the respective adjacent elements form vertical channels therebetween. The channels are filled with heavy concrete which provides a tensile-resistant bond between the elements and which also forms pillars which carry the major part of any load applied to the wall.

Abstract: The invention relates to a waterstop for providing a water-tight seal between layers of concrete. Flexible waterstops are known and are usually attached to a convenient structure such as steel reinforcing bars by individual loops of wire which pass through eyelets in the edge of the waterstop. The present invention provides a waterstop which has integral transverse loops of wire or similar strong material embedded in the waterstop material but projecting outwardly from it so that they can be used directly to attach waterstop to structure such as reinforcing rods or scaffolding. To provide strength, longitudinal stiffening members in the form of strands of cotton, wire or synthetic plastics material are knitted or woven into the inner portions of the loops embedded in the plastic or rubber waterstop material. These strands stiffen the waterstop and also help firmly to anchor the loops.

Abstract: An insulation filled building plank having two spaced apart boards held together and separated by webs having dovetail connections with the boards and being at an angle to the longitudinal axis of the plank so that any transverse cut of the plank will cut a web is produced on apparatus which first cuts matching dovetail grooves on surfaces of the boards arranged face to face after which the boards are turned to have the dovetail surfaces facing each other and the apparatus pulls dovetails of webs into the grooves in the boards from a magazine and then the apparatus fills the spaces between the webs and boards with an in situ foamable insulation.