Abstract: A roof construction provided with a series of vented air circulation passages between the outer roofing layer and an inner sealed insulation layer to provide a positive ventilating system and prevent accumulation of moisture within the insulated inner portion of the roof structure.

Abstract: A reclosable container provided with a dispensing opening having an overlying closure flap with a pressure-sensitive tape extending therearound to permit removable attachment to the portion of the container surrounding the opening.

Abstract: A container for storing and transporting grains having rigid side and end walls defining a generally rectangular or square cross-sectional shape, wherein the bottom corner is truncated to form a generally flat supporting base which is formed by a pair of hopper doors which provide the base panel when closed, but can be opened to discharge the contents from the container having a covered filler opening in the top, the container being provided with perforated drying tubes extending therewithin and a wheeled transport unit for receiving the container thereon and tilting the container into position where one of the hopper sides forms the bottom during transportation and permitting the container to be readily moved from one location to another.

Abstract: A bindable sheet which includes a recessed marginal edge portion in which a heat-responsive glue is applied, said recessed portion including a plurality of spaced-apart openings therethrough to expose the glue on the opposite side of the sheet from the recess, the thickness of the glue being no greater than the depth of the indentation of the sheet to produce a substantially uniform sheet thickness throughout its entire surface area. The method of binding a plurality of sheets together which includes the steps of indenting the marginal edge of a sheet, applying a ribbon of heat-responsive glue in the indented portion, the thickness of which does not exceed the depth of the indentation recess positioning two sheets together with the glue edges in registration and applying heat and pressure to the glue edges to seal the same together without increasing the thickness of the bound-together sheets.

Abstract: A device and method for determining a tension factor in grids such as tennis rackets and the like, which have different sized string areas, the device including a frame structure defining a fixed, predetermined test area within a larger size racket string area and having a mechanism for relating two measurement components, a deflection component and a force component, an element for applying a first measurement component to the grid test area and an element for sensing the other component resulting from the application of the first component, and determining from the two components a tension factor in the strings forming the grid, the method including defining a predetermined test area within a larger grid area, applying one of two measurement components to a portion of the grid test area, determining the other component resulting from the application of the one component to the grid test area, and determining a tension factor in the strings forming the grid from the values of the two components; the apparatu

Abstract: A pad of bound-together individual sheets having a reusable pressure-sensitive adhesive applied to the bound-together edge portion thereof and provided with a removable attachment strip to facilitate the binding of the sheets into a convenient pad for removal and use, and method of making the same.

Abstract: A magnetic head for use with a magnetic tape information recording, storage and retrieval computer system which includes applying a hard, wear-resistant coating to an inexpensive molded plastic body to drastically reduce the cost of the magnetic head component without reducing its reliability or stability and also the method of producing such a magnetic head.

Abstract: A hydraulic stabilizing mechanism for connection with a main hydraulic hoist system for automatically actuating at least a pair of stabilizing cylinders to extend the same into statilizing position whenever the main hoist system is extended and positively prevent the stabilizing cylinders from retracting until the main hoist system is in fully retracted position, and more specifically, a hydraulic stabilizing mechanism for farm wagon dump boxes which provides hydraulically actuated stabilizing strut elements between the wagon bolster and the front axle which are maintained in extended stabilizing position whenever the hydraulic box dumping mechanism is extended.

Abstract: A bookmark with a retaining hook element at the top thereof to receive the upper end of the bound edge of a book and positively prevent the bookmark from shifting longitudinally and laterally of said bound edge. In one form, the bookmark is provided with a plurality of reference indicia slits along opposite edges of an elongated body and includes a plurality of elongated cord elements adapted to be inserted into one or more of said indicia slits along the edges of the body to provide reference indicia for the subject matter of the book.

Abstract: An improved continuous sheet having tear-off perforated edge portions for use with toothed driving wheels (tractor drive transfer mechanism) adapted to mesh with the perforations to advance the continuous sheet in accordance with word processing and printing equipment, said sheet having a recessed, reinforced inner edge portion adjacent to the tear-off line of the perforated edge portion.

Abstract: A mounting system for stacker cranes designed for handling materials in warehouse storage racks which system includes a depending cylindrical crane supporting post member carried by a suitable overhead track and carriage support structure for permitting the supporting post member to be moved transversely and longitudinally with respect to the warehouse storage racks. The mounting system on the supporting post member includes a radial/thrust bearing mounted on the post which provides vertical and lateral support for the load, and roller means spaced axially along the post from the bearing to engage the outer cylindrical surface of the post to provide lateral support for the crane mounted on the post while permitting the crane to be rotated through an arc of 360.degree. about the axis of the post, the system also including an electrical connection between the post and the crane to permit power to be provided to an electric power source mounted on the crane.

Abstract: Game apparatus designed specifically for use as a teaching tool to reward participants for "correct" responses to life situation problems and including a game board having a winner's circle and a plurality of ramps leading radially into the circle, each of said ramps having a plurality of color coded spaces, said game apparatus also including a selection die having color coded surfaces thereon certain of which match the colors of said ramp spaces and certain of said die surface colors determining the action that participant should take. Said game apparatus also includes a play book having preselected life situation problems with multiple choice responses, choosing the "correct" response entitling the participant to a reward, said game apparatus also including a reward selection spinner with a reward selection board, each having matching indicia to determine the specific reward.

Abstract: A safety latch mechanism for extensible strut elements mounted on stationary strut members such as are used for farm dump boxes, said latch mechanism including elongated latch bars pivotally mounted at their upper ends on the extensible strut elements for longitudinal movement therewith, stop lugs respectively fixed to the stationary strut members for respectively engaging the latch bars when said strut elements are in extended position, and a releasing lever pivotally mounted on the lower end of each latch bar, and having a fulcrum positioned to engage the lever to release each latch bar when the dump box is in lowered position to engage the releasing lever.

Abstract: A paper sheet having a recess along one edge thereof with a non-drying adhesive applied in said recess and a removable protective strip covering said adhesive, the combined thickness of said adhesive and strip being substantially equal to the depth of said recess to provide a sheet of uniform thickness having a protected pressure-sensitive adhesive edge.

Abstract: A freeze-proof livestock watering device comprising an open-topped drinking reservoir having insulated side walls and a heat conductive bottom panel constructed and arranged to produce a very low-cost operation by incorporating a combination of low-volume turbulence-producing jets and apparatus for providing a heat transfer relationship between the bottom of the drinking reservoir and the above-freezing, sub-frost level ground temperatures. A float valve is also provided to maintain a minimum water level while the livestock are drinking from the pan, and an overflow drain is provided to maintain a maximum water level during inactive periods of use. A thermostatic control valve may be provided to control the discharge of water through the jets in accordance with the water temperature in the pan, and a protective hood is provided over the float valve and drain outlet to prevent freezing thereof.

Abstract: A coin sorting device which includes an inclined coin transport rail with a coin feeding mechanism for supplying a flow of coins of different sizes to the upper end of the rail, the coin transport rail including at least one drop-through slot opening in the rail for permitting the smallest sized coin to pass therethrough while retaining all of the larger sized coins on the rail and also including a number of spaced apart pickoff coin removing fingers to successively remove selected coins from the rail; the slot being specifically constructed to produce simultaneous tilting and rotation of the smallest coin at the leading end of the slot to insure removal thereof through the slot with all of the coin engaging surfaces of the slot and the fingers being highly polished to reduce friction and obstruction of the flow of coins and certain portions of said surfaces being bevelled to eliminate restriction of the removal of the various coins from the rail, and also the method of sorting and separating coins of differe

Abstract: A bag holder including a mounting ring for providing circumferential support for the upper open end of a bag, and a clamping element pivotally mounted on said ring to permit clamping and anchoring the mouth of the bag to the mounting ring, and also including retaining means underlying the front portion of the underside of the ring with means for supporting the ring and means for covering the opening formed by the ring and clamping element.

Abstract: This is a removable hinge mechanism particularly designed for use with steam table food containers for removably attaching a separate cover to the upper portion of the container, thus providing a support for holding the cover when the same is lifted from the container to provide access to the food confined therewithin.The hinge mechanism is attached to the container by a releasable clamping action between the inner and outer portions of the rolled edge or flange formed at the top of the container and to the cover by an open-ended loop to permit complete removeability from the container and the cover for cleaning.

Abstract: This is a machine which assists the operator in assembling paper dust jackets around the hard covers of a new book. The machine includes the plurality of vacuum suction cups mounted on a pair of oscillating transferring arms which transport the paper jacket from a supply stack to position the jacket on the back of a hard cover book while the book is being held in a positioning jig which also supports the covers in substantially horizontal position to receive the jacket from the vacuum cup and transfer arm assembly. The transfer arms are mounted on an oscillating shaft which is actuated by the positive air discharge from a compressor. A vacuum pump provides the vacuum for the suction cups. The chain and sprocket drive rotates the transfer arms and the suction cups from the plane of the pickup position to the plane defined by the book covers in the positioning jig during the transfer movement of the arms through their predetermined arc.

Abstract: A board nailing machine, herein disclosed in the form of a pallet maker, in which the stringer or inner boards are automatically fed in spaced apart relation into a nailing station and the deck boards or outer boards are automatically fed into nailing position at said nailing station on opposite sides of the stringers and thereafter the deck boards are nailed to the stringers at said nailing station. In the specific embodiment disclosed the stringers are automatically fed from supply magazines into a nailing station wherein they are disposed in horizontal parallel spaced apart relation and the deck boards are automatically fed from supply magazine into said nailing station on opposite sides of the stringers and are disposed in upstanding substantially vertical nailing position at said nailing station, and the nailing mechanism is specifically designed to drive the nails horizontally through the deck boards into the stringers at said nailing station.