Abstract: An earthworking unit having a toggle trip mechanism for holding an earthworking tool in an earthworking position and allowing the tool to move upwardly to a release position. The toggle trip mechanism has a pair of links pivotally connected with an eccentric pin. One link is connected to a pivoting mount held in a normal position with a flexure bar. The other link is connected to a standard carrying the earthworking tool. A control arm connected to the pin and a control rod is operable to rotate the eccentric pin 91 to adjust the overall length of the toggle links.

Abstract: Four or more cultivator arms or shanks are pivoted to the front and rear of a main frame and are interconnected by linkage so that if a cultivator blade on one arm strikes an obstruction, then it moves rearwardly to clear same and at the same time the others that are interconnected, move forwardly by a lesser amount thus absorbing the movement of the cultivator blade striking the obstruction. When the obstruction is passed, the engagement of the remaining blades with the ground, returns them to the original position thus returning the tripped blade to the original position.

Abstract: In an angled bulldozer blade and tractor assembly, a C-frame is constructed in two parts with interfitting elements at the midportion of the C-frame which are held together by axially aligned bearings or sleeves. A blade pivoting pin extends through the midportion of the interfitting elements with the axis of the pin lying transverse to the axis of the aligned bearings or sleeves. Parts of the interfitting elements of the connection are shaped to permit relative rotation between the two halves of the C-frame, particularly for use during storage and shipment of the C-frame.

Abstract: A cutter with a replaceable cutting element is adapted to be mounted upon the rotary head of an earth boring machine or upon the body of an earth boring bit. A rolling cutter shell is mounted upon the rotary head or the bit for rotary motion to roll along the formations being cut. The rolling cutter shell includes first and second ends with an annular receiving surface between the ends. Replaceable cutting means substantially encircle the rolling cutter shell for contacting the formations and forming a hole therein. The replaceable cutting means include an inner surface that mates with the annular receiving surface of the rolling cutter shell. Locking means securely lock the replaceable cutting means to said rolling cutter shell and draw the inner surface of the replaceable cutting means into engagement with the annular receiving surface of the rolling cutter shell.

Abstract: The invention concerns seals particularly for rotating shafts.This seal, with a flexible membrane in the form of a cupola having an aperture for the shaft to pass therethrough, is characterized by the fact that said cupola has a thickness decreasing from its base to the contact ridge with the shaft, the elasticity necessary for maintaining the contact being obtained from the inherent rigidity of the membrane.

Abstract: An offset type tractor, especially for agricultural work, comprising a structural unit including an engine and transmission casing directly connected to the engine, the unit being offset to one lateral side of the longitudinal center line of the tractor. The rear drive wheels of the tractor are mounted on the transmission casing. A reinforcement frame is securely affixed on a continuing lateral surface both of the engine and the transmission casing, on the side thereof nearer to the longitudinal center line of the tractor.

Abstract: An electrically powered service vehicle having a plurality of programmable electrical stations is exemplified by a food service vehicle for use with food serving trays including internal heating elements for providing localized areas of heat on the trays for maintaining food placed thereon at a desired temperature. The vehicle has a plurality of storage compartments, each of which holds a plurality of the food serving trays in vertically spaced relation to each other. An on-board d-c. power source is connected to the heating elements within the trays via a plurality of electrical contacts within each storage compartment. A d-c. drive motor for propelling the vehicle is selectively connected to the power source through a drive control. The electrical contacts within the storage compartment are positioned to engage corresponding contacts on the trays when the trays are inserted into the storage compartments.

Abstract: An apparatus for frictionally engaging and driving a rotatable wheel of a lightweight vehicle is disclosed. The apparatus has a pivotable handle which is movable between a first and a second position. In the first position the handle blocks access to a fuel tank while permitting operation of the engine and engagement of a driven friction surface with the rotatable wheel. In the second position of the handle, the engine is inoperable, the fuel tank may be refilled, and the friction surface cannot engage the rotatable wheel. Preferably, the handle provides means for pivoting the engine to and from a position in which the friction surface engages the rotatable wheel and for operationally engaging an electrical switch to control operation of the engine.

Abstract: A speaker system in which at least one driver is mounted on an enclosure and is adapted to radiate sound waves outwardly from said enclosure in response to an input signal. A sound absorbing material is disposed on at least a portion of the outer surface area of said enclosure to reduce the effect of diffractions and reflections of said sound waves relative to said enclosure.

Abstract: A modular fluid stream silencing apparatus, primarily for use in air conditioning ducts and the like, comprising a plurality of air splitters formed of acoustical energy absorbing material, the air splitters being of such sizes that the plurality of air splitters can be installed within a duct centrally of the duct and coextensive with one another, additional air splitters which can be added to increase the size of the silencing apparatus for larger ducts, and a plurality of rods passing through the duct and the air splitters for mounting the air splitters, the preferred form of air splitters being annular and of such sizes to be mounted coaxially with one another.

Abstract: A multiple flow marine muffler constructed of resilient material having an elongated generally cylindrical hollow shell with reduced diameter inlet and outlet portions, and longitudinally spaced pairs of opposed baffles within the shell which define a plurality of chambers decreasing in axial length from the chamber adjacent the inlet portion to the chamber adjacent the outlet portion. The several pairs of baffles are so shaped, sized and oriented as to provide multiple flow paths for exhaust gases and cooling water through the muffler, namely, a central straight through path for engine idle condition, a first pair of undulating paths in side by side out of phase relation, and a second pair of undulating paths in side by side out of phase relation which are oriented in the cylindrical shell 90.degree. away from the first pair.

Abstract: A ratchet wheel is advanced by an oscillating driving pawl in conjunction with a holding pawl to charge circuit breaker mechanism closing springs. A latch operates in response to the initial lifting of the holding pawl as the ratchet wheel is rapidly advanced by the closing springs to detain the holding pawl in an inoperative position while the closing springs discharge. Lifting of the driving pawl by the advancing ratchet wheel leaves the driving pawl in an inoperative position by virtue of a unique slip clutch coupling between it and its driving motor. The latch releases the holding pawl for return to its operative position automatically during the initial oscillation of the driving pawl to start a new charging cycle.

Abstract: A disc brake including a hydraulic actuator and a mechanical actuator is disclosed. The hydraulic actuator comprises a piston and the mechanical actuator comprises a push rod adapted to engage said piston through a self adjusting device, said adjusting device including a nut received on a threaded rod associated to said push rod, a thrust bearing capable to rotate said nut relative to said push rod on movement of said piston in a brake applying direction, and a clutch spring adapted to prevent rotation of the nut in the opposite direction. The thrust bearing comprises a cage which cooperates with the piston through a circumferential lost-motion connection adapted to limit rotation of said nut relative to said threaded rod to a predetermined angle on each hydraulic brake application.

Abstract: A drum brake assembly includes a backing plate for supporting a pair of brake shoes and a hydraulic actuator which cooperates with the pair of brake shoes to urge the latter into a braking position. A parking lever is pivotally mounted on one of the brake shoes and a strut connects the parking lever with the other brake shoe such that rotation of the parking lever when the parking brake is applied urges the pair of brake shoes into a braking position. In order to connect the strut to the other brake shoe while at the same time eliminating any rattle between the pair of brake shoes and the struts, a spring clip releasably connects with the other brake shoe and resiliently engages the strut to bias the latter toward the one brake shoe. The spring clip is substantially U-shaped with at least one opening for receiving the strut and for maintaining the strut in juxtaposition to the other brake shoe.

Abstract: A cylindrical shock absorber having a piston rod extending outwardly therefrom to which a disc-like upper cover plate is secured. The cover plate is castellated with peripheral teeth arcuately spaced from one another extending radially from the outer edges. The dust tube is formed from plastic sheet stock having a series of perforations adjacent one edge sized and spaced to receive the teeth of the cover plate. The sheets are wrapped onto the cover plate with the teeth projecting through the openings to form an outer cylinder. The adjacent end edges of the cylinder are heat welded or otherwise secured so that the cylinder is retained on the cover plate to form a cylindrical dust tube.

Abstract: Telescopic shock absorber having a cup-like metallic cover plate with a cylindrical rim having a series of arcuately spaced and inwardly projecting dust tube retainer tangs. The dust tube is formed from a generally rectilinear blank of flexible plastic material having a series of holes punched along the upper edge thereof spaced to match the retainer tangs. The blank is curled into cylindrical tube that is subsequently inserted into the cover plate and turned until the retainer tangs enter corresponding holes in the upper end of the tube so that the tube is fixed to the cover plate.

Abstract: An engagement control valve for a lock-up clutch operable to control the clutch engagement force in response to the angular acceleration of the clutch. The valve has one member rotatable with the clutch and another member resiliently connected with the one member. The valve members cooperate to control the fluid passage such that, on sufficiently high angular acceleration of the clutch, the passage is open to reduce the engagement force of the clutch thus preventing the transmission of torsional vibrations which are not damped by a conventional damper.

Abstract: A conveying unit for feeding preshaped pieces of cardboard to a machine for packaging cigarettes into hinged lid packets, the unit including a first and a second conveyor arranged substantially at right angles to one another and along each of which said pieces are advanced in contact with a support surface, the second of said support surfaces being arranged at a higher level than the first, and a transfer mechanism being provided to raise said pieces one by one from said first surface, support each raised piece in said raised position, and then push the same on to said second surface.

Abstract: Apparatus for changing the spacing between two neighboring rows of parallel cigarettes which are transported sideways has a first fluted drum which delivers the two rows of cigarettes to a first transfer station where the cigarettes enter radially extending flutes in the upper end faces of two coplanar disks which are eccentric to each other and one of which surrounds the other disk. The disks transport the cigarettes through 180 degress to a second transfer station where the cigarettes are picked up by the flutes of a second fluted drum which is coaxial with the first drum. The distance between the two rows of cigarettes increases or decreases gradually during transport by the disks.

Abstract: A transport hook for suspending and supporting a sheet metal article from an elevated conveyor chain that includes a base member having a pair of jaw members connected thereto. A spring extends between the jaw members for normally maintaining the latter in an open position and one of the jaw members is formed with a support portion that is adapted to have the article mounted thereon so as to cause the weight of the article to draw the jaw members into clamping engagement with the article against the bias of the spring.

Abstract: A quick connect-disconnect coupling assembly detachably connecting the inner core member of a composite type conveyor roll to its mounting. The coupling assembly includes a tubular drive extension, a first coupling section rigidly secured to the core member and a second coupling section mounted within the drive extension.

Abstract: An arrangement for tensioning a gateway conveyor in a sloping gateway during longwall working using supports having base frames which are provided with pulling and shifting hydraulic actuators, wherein in a tensioning device is provided at least at one of the supports and is connected at one end to the gateway conveyor and at the other end to a slide member which is slidably guided by the base frame of the support for a movement which is transverse to the longitudinal direction of the gateway conveyor, characterized in that the slide member which is slidably guided for a movement which is transverse to the longitudinal direction of the gateway conveyor consists of a guide frame, which is supported by the base frame against forces acting in the longitudinal direction of the gateway conveyor, the cylinder of the pulling and shifting actuator is axially immovably mounted in the base frame and its piston is connected to said guide frame, which when retracted extends on opposite sides of the pulling and shifting a

Abstract: A conveyor including at least two endless chains each comprising a plurality of pivotally inter-connected links, each link comprising a synthetic plastics material, having a conveying surface, and having attachment means whereby additional elements may be mounted thereon and at least some of the links in each chain being engageable by a drive means.

Abstract: A catgut suture package is disclosed which upon opening exposes the looped end of a catgut suture. The suture loop is directly dispensed from the package leaving the label intact within the envelope.

Abstract: A holder for retaining sutures, needles and other surgical products used during surgical operations, with one form of the holder being made from sheet material and having intermediate portions folded over adjacent intermediate portions thereof to form a plurality of pockets which are adapted to receive and retain the sutures and needles. Such holder is provided with one or more detachable blocks of resilient material having indicia thereon for assisting in counting the needles carried by the blocks. The holder may be provided with a foldable easel stand. Another embodiment consists of a block of polyfoam material divided into first and second sections, with the first section having on the top wall thereof a decal with indicia thereon and with the second section having in the top wall thereof parallel slots for receiving surgical sutures, needles, etc. to hold them securely and conveniently in place.

Abstract: A carrier card integrating a group of separable blister packages containing seeds of different kinds or varieties having compatible properties, making it feasible to plant these seeds at the same season in a common ground area. The card is divided by a transverse perforation line into an upper display section on whose face is pictured the compatible plants produced by the packaged seeds, and a lower section sub-divided by longitudinal perforation lines into a group of strips. Each strip has adhered to its face a clear plastic bubble backed by a plastic base to create a hermetically-sealed blister package within which is housed a charge of pelleted seeds, the seeds in the packages being of different color to facilitate discrimination therebetween. The bubbles are shaped to define at their lower end a tapered spout which can be snipped off to permit the housed seeds to be dispersed. Each strip is labelled to identify the seed plant, the strip being usable as a ground marker for the plant.

Abstract: A carton includes an integral pour spout formed in the top wall. A pivotable tab with flanking wing members is formed in an innermost top panel. A second top panel having an opening aligned with the tab is superimposed on the innermost panel. An outer top panel includes a tear strip which is completely or partially removable and which overlies the aligned opening and tab. When the tear strip has been at least partially removed to expose the aligned tab and opening, the tab can be pulled outwardly as the wing members fold inward to form the floor and side walls, respectively, of an integral spout. In one embodiment, a partially removable tear strip includes a small tuck flap which can be inserted through aligned openings in the inner panels to re-close the carton.

Abstract: An improvement in mail processing equipment is provided in which items of mail are presented to operators at stations adjacent a continuous transporter. An operator works at any desired pace because items of mail are presented repeatedly until removed by the operator.

Abstract: A separating apparatus for separating objects of a particular kind from a stream of falling objects e.g. for use in crop harvesting comprising a movable separating member which is alternately held stationary in a first position to deflect objects of the particular kind in one direction and moved to a second position to allow other objects to fall in another direction wherein the separating member is moved between its first and second positions in such a manner, e.g. with an essentially reciprocating motion, that the volume swept by the separating member in the path of the falling objects is comparable with the volume of the separating member itself so that objects can follow one another at a close spacing without preventing satisfactory separating action.

Abstract: A foldable supporter of clothes-drying bars provided with an arrangement whereby the supporter can be withdrawn into its folded state to under the shelter of roof in response to the reception of rain drops on the rain-drop receiver, thereby avoiding the trouble that the drying clothes hung on the bars become wet in the rain.

Abstract: A scuba rack for holding four scuba tanks with back packs and regulators attached securely in place. The scuba rack is especially suitable for securing scuba or diving tanks, with accessories attached, in an automobile, on the deck of a boat, raft or the like. A flat bottom support has four shallow cylindrical recesses in its upper surface for accommodating the bottoms of four scuba or diving tanks. The cylindrical recesses are symmetrically arranged about a rigid vertical upright post extending centrally from the bottom support. Four flexible straps are attached to the upper portion of the vertical upright and can be stretched to loop over the valve units of the respective diving tanks to force them inwardly against the vertical upright and downward securely against the bottoms of the cylindrical recesses.

Abstract: A large light-weight telescopic crane boom comprises a plurality of relatively movable boom sections, such as base, intermediate, outer, and fly sections, and each section comprises top and bottom walls and a pair of spaced apart side walls. In each pair of relatively movable adjacent boom sections wherein one (inner) section is telescopically receivable within another (outer) section, the inner surface of the side walls of the outer section and the outer surface of the side walls of the inner section comprise longitudinally extending corrugations or projections which interengage and whereby the inner section is slideably supported on the outer section. The corrugations or projections on each wall surface are arranged in two (upper and lower) sets, one above and the other below, the longitudinal neutral axis of the crane boom.

Abstract: There is disclosed an automatic cargo transport apparatus for moving cargo between different vertical levels in which endless chains are synchronized to move along vertical ascending and descending paths in an elevator gantry. Laterally extending cargo loading and cargo discharge conveyors are located at different vertical levels to transfer boxes of cargo to and from pairs of cradles moving respectively in ascending and descending vertical directions within the gantry. Discharge sensors detect unwithdrawn units of cargo at the cargo unloading space and inhibit further operation of the cargo transport until this condition is corrected. Loading sensors detect the ascending movement of cradles at the cargo loading station and synchronize the interpositioning of cargo loads at the cargo loading space.

Abstract: This application depicts a color cathode ray tube bulb and bulb components having a novel protection system, and a method of installation. In one embodiment disclosed, a color CRT bulb comprises a glass faceplate hermetically sealed to a glass funnel along a sealing interface. The bulb is characterized by having a particle-deposited, high tensile strength, form-fitting bondment composed of a material having a high yield strength and Young's modulus. The bondment engirds and is self-adhered to the bulb at or near the sealing interface so as to become one therewith. The bondment is built up to such cross-sectional dimensions as to have sufficient strength and stiffness to provide implosion protection for the bulb by confining and restraining the shards of a fractured bulb. In a preferred execution the bondment applies a compressive pre-load to the bulb. Also depicted are applications of a bondment to funnel and faceplate components before they are assembled into a complete bulb.

Abstract: A fuel filler tube closure cap for a motor vehicle fuel tank includes a handle portion which is detachable from the closure portion. The handle has a skirt which covers the fill tube opening in a vehicle body panel such that on relative movement of the fill tube away from the body panel, a force is applied to the skirt causing separation of the handle portion and the closure portion. The closure portion remains with the fill tube to maintain fuel system integrity.

Abstract: Disclosed herein is a cap assembly for a fuel tank including a cap having a top wall with a vent opening therethrough, a cylindrical side wall depending from the top wall, a generally cylindrical wall depending from the top wall and inside of the side wall, and defining a recess therein, and an insert in the recess. The insert includes a hollow generally cylindrical member defining a bore having opposite ends, one of the ends being closed and the other of the ends being open and adjacent the top wall with the bore being in fluid communication with the vent opening. The insert also includes an annular flange surrounding the generally cylindrical member intermediate its opposite ends, the flange having a periphery engaging the cylindrical wall, and a hole in the flange for providing fluid communication between the fuel tank and the recess.

Abstract: Mill processing of ingots and like metal articles at or after bringing to temperatures above about 900.degree. C. is enhanced through self-heat soaking at such high temperatures to homogenize temperature and structural parameters throughout the body of such article. In particular this improves workability of such article for forging or rolling. The insulation comprises thin metal foils or the like separated by alternating layers of subdivided fibrous insulation, preferably in felted, woven or other sheet form and structured to maintain structural integrity at such high temperatures, and provides insulation of the metal article surrounded by such insulation and reduces scale formation and eliminates the need for flame or other external heat source or the need for heavy and/or voluminous handling and furnace equipment.

Abstract: Thermal insulation comprised of fiberglass boards or batts having relatively small diameter fiberglass fibers either bound or unbound is wound about the lading container pressure vessel of a tank truck, trailer or rail car. As the insulation is wound about a longitudinal section of the vessel, the insulation is squeezed from its free height to a lesser height to increase the density of the insulation and also permit passage of the outer jacket. The squeezing is preferably accomplished by wrapping each layer of insulation with a continuous wire mesh. The tension is maintained with the use of a long rod intertwined in the wire mesh, which rod is withdrawn after a section of the outer jacket is over a section of the vessel thereby permitting the insulation to expand and substantially fill the void between the vessel and outer jacket.

Abstract: A device for filling pneumatic tires. The device includes a container for gas under pressure and upon which a dispensing head is mounted. The head has a passage leading from the interior of the container and there is a tire valve in the passage movable to opened and closed positions. An orifice in the passage inwardly of the valve has a flow capacity less than the valve to determine the maximum flow rate of gas from the container. The dispensing head has a sealed and threaded connection to the container and there is a relief port connecting the passage at a point between the valve and orifice with the threaded connection inwardly of the sealed connection and effective to bleed gas from the container to atmosphere when the dispensing head is unthreaded from the container far enough to break the sealed connection but before the threads are completely disengaged.

Abstract: The simulated wire wheel cover comprises a rim portion which has retention devices attached thereto for attachment to the wheel of a vehicle. The rim portion has a plurality of holes therethrough to receive ends of at least one series of nested substantially V-shaped members. The ends of the V-shaped members are provided with upset portions to limit the travel of the members through the holes of the rim portion. The wheel cover has a body portion radially inward of the rim portion and is provided with at least one circular camming surface in the region of the apex of each of the substantially V-shaped members which bear upon the camming surface. Clamping members are attached to the body portion to capture and force each of the V-shaped members against the camming surface to drive each of them toward the rim portion whereupon each of the upset portions are in intimate contact with the rim portion to lock each of the V-shaped members in place.

Abstract: A vertical hollow container has a top opening. First and second vertically spaced horizontal plates are disposed in sealing engagement in the container opening. The plates have aligned central holes. A vertical hollow pouring shaft is secured at its bottom open end to the aligned holes and extends upwards from the upper plate. First and second overlapping horizontal rotatable discs are disposed between the plates. Each disc is separately and individually rotatable about a corresponding axis. The discs each have off center holes which can be individually aligned with each other and with the aligned holes in the plates.

Abstract: A multi-component fluent product, such as an epoxy resin mixture, is controllably mixed and dispensed from an improved mixer-dispenser. The device has a pair of pressure chambers each of which receives one of the fluent components in its original package. Air under pressure is communicated to the two chambers to force the fluent materials from their packages into flow passages which merge and cause mixing of the components. Special valve arrangements are provided along the flow passages to control the mixture proportions and to enable the flow passages to be purged of the mixed components when desired.

Abstract: A coffee dispenser having a storage hopper and an adjustable slide and trap door batch dispenser mechanism which can be easily and quickly cleaned and which is particularly adapted to permit adjustment of the size of the batch being dispensed.

Abstract: A dispensing apparatus for flowable products, comprising a replaceable container with an externally threaded neck portion, a dispensing device comprising a pump housing and a valve chamber with two valves arranged in succession in the direction of flow of the product, and a sleeve arranged to be fitted over the container neck portion so as to allow air to penetrate into the container interior along the neck threads, whereby the partial vacuum which generates above the product level inside the container during discharge of the product may be levelled out while at the same time the sealing-off against the environment is sufficient to prevent drying out of the product.

Abstract: A substantially constant flow aerosol container having a dispensing valve provided in its inlet with a tube having a flow passage between 0.1 mm and 0.5 mm, and of a length sufficient so that flow occurs at a REYNOLDS number less than 3000. The propellant is a non-liquified gas.

Abstract: A flexible, non-elastic strap harness for carrying cameras and other portable instruments having a separate adjustable instrument grip which includes a flexible instrument encircling holding member and a sliding grip member for adjusting the length of said holding member.

Abstract: The present invention relates to a vehicle luggage rack adapted to be mounted atop a vehicle of the type having a landau roof. The luggage rack comprises a main luggage rack frame secured about the front of the vehicle roof, and including a longitudinal adjustable rear extension extending rearwardly past the vehicle roof. A rear vertically adjustable support assembly is fixed to the rear extension and depends rearwardly therefrom for engagement with a rear portion of the vehicle body referred to as the trunk area. This allows the entire luggage rack of the present invention to extend over the roof and to be supported about the front of the vehicle roof and about the trunk area of the vehicle.

Abstract: Carrier comprising a unitary polystyrene container having posts extending divergently out from the container in nonvertical directions and a carrying strap or handle affixed to each post substantially perpendicular to the axis thereof. The carrier is useful as an emergency medical kit.

Abstract: A tank carrier having a horizontally extending handle, a pair of hooks below the handle and facing in opposite directions and opening upwardly, the hooks being receivable in slots of connectors attached to the tops of compressed air tanks and beneath the valves thereof so that two tanks can be carried in vertical suspension from the hooks.

Abstract: A tool for breaking an optical fibre comprises an elongate base member and an elongate top member pivotally connected at a rear end. An elongate cam member slides longitudinally in the base member, being actuated by pivotting of the top member. At the front end of the base member are a front pair of opposed gripping jaws and a further, rear, pair of gripping jaws are spaced from the front jaws. A bending member is positioned between the two pairs of jaws. Pivotting of the top member towards the base member actuates the cam member which in turn first closes the front jaws, then the rear jaws. The rear jaws then pivot backwards to tension the fibre and then the bending member moves up to cause the fibre to bend over an arcuate top surface. Finally a pivotally mounted scoring member in the top member is actuated to sweep a sharp edge across the fibre to initiate a crack, which propagates across the fibre.