Abstract: A reciprocating indexing mechanism for linear and rotary outputs which has an output member which inherently reaches a zero velocity at each end of a stroke independent of the input velocity and which utilizes an angular input mechanism, commercially available, which has a rotative movement greater than 180.degree. but less than 360.degree.. The resulting mechanism has versatile kinematic characteristics during the stroke with a smaller acceleration discontinuity at the ends of the stroke than comparable harmonic mechanisms.

Abstract: A food warming stove suitable for placement upon a serving or dining table, and including a shell mounted upon a revolving turn table, the shell enclosing several braziers each of which holds a quantity of sterno canned heat burning compound for producing flames under hot plates adaptable for placement of cooking vessels thereupon, so to warm various foods.

Abstract: An ash-free ventilating apparatus for use in a fireplace is disclosed comprising a grate element adapted to detachably secure to the opposing end walls of a fireplace and extend therebetween, a ventilator housing centrally located within the fireplace and below the grate element and having an inlet port for connection to a source of fresh air and outlet ports in fluid communication with the inlet port, and a valve operationally connected to the outlet ports to regulate the flow of fresh air through the outlet ports. The ventilator housing has two elongated side walls with each side wall sloping downwardly and outwardly toward the immediately adjacent fireplace end wall to guide the fallen ash matter to an ash pit. An additional deflecting wall is disposed adjacent each end wall of the fireplace and opposite to the elongated side walls of the ventilator housing to also deflect fallen ash matter to the ash pit.

Abstract: An automatic ignition control system for controlling the pilot burners and main burners of fuel burning appliances so that these burners are ignited only upon demand is disclosed. The system consists of a main control unit which may be interconnected with conventional main and pilot burners or which may be connected with a new and novel burner specifically designed for the purpose. The main control unit is actuated by suitable thermostats or switches when burner operation is required and operates to open the pilot valve and activate a pilot igniter control circuit. The igniter control circuit may take several forms, depending upon the type of igniter used with the burner, and sensing means are provided to deactivate this igniter control circuit when a pilot flame is detected. If the pilot fails to ignite after a predetermined period of time, the main control deactivates the pilot solenoid and sounds an alarm.

Abstract: The invention relates to a balance wheel for rotating machines, especially combustion engines, including, for example, outboard motors. Hitherto, such balance wheels or flywheels have been manufactured from different non-ferrous metals as zinc or aluminum alloys, and in one embodiment they have the shape of an inverted pot having low side walls. On the inner side of the walls balance wheel magnets, that is, permanent magnets for the ignition or generator system of the motor, are attached, and the other elements of the ignition or generator systems are disposed outwardly around the output shaft of the engine and inside the "pot". However, for obtaining a suitable magnetic field, the permanent magnets are not attached directly to the balance wheel of a non-magnetic material--zinc or aluminum--but on a ring of magnetic material, for instance steel, which in its turn is attached to the balance wheel.As known, the object of a balance wheel is to act as an accumulator of mechanical energy.

Abstract: A log-burning stove which includes a door having a plurality of parallel, fixed, guide-rail elements disposed on the inside of the door and in the plane of the door, the guide-rail elements parallel to the combustion-chamber entrance of the stove and adapted to permit a heavy log to be slid into position adjacent the stove entrance on the upper surface of the guide-rail elements.

Abstract: A pedal assembly is used for simultaneously controlling the brake system and fuel supply for a power driven vehicle. The assembly comprises a single pedal having two arm portions. A first arm portion is effective to move in various working positions within a first plane of operation. A second arm portion is effective to move to various brake working positions and a second plane of operation that is normal to said first plane. The first arm portion is connected to the fuel supply for said vehicle to control said supply while at a working position of said arm portion in said first plane of operation. The second arm portion is connected to the brake system to effect braking while at a brake working position of said second arm in said second plane of operation. The first and second arm portions are connected with respect to each other to effect braking movement of said second arm portion at any working position of said first arm portion.

Abstract: A rack and pinion assembly includes a rack bar having a longitudinal axis along which it is displaceable in a rack bar housing. A pinion is rotatably mounted in the housing and has teeth which engage with helically formed teeth in a rack of the bar so that upon rotation of the pinion, the rack bar is displaced longitudinally relative to the housing. A control mechanism communicates between the rack bar and the housing and rotates the bar about its longitudinal axis and relative to the housing in response to the longitudinal displacement of the bar by the pinion.

Abstract: The pump drive mechanism provides a high reduction drive from a continuous operating motor to a crank arm to oscillate the counterbalanced jack for a pump as used in the oil field. The drive utilizes three series of belts to obtain a reduction of 190 to 1. The belt drive reduces downtime and improves the efficiency of drives for pump jacks.

Abstract: A flexible reciprocating mechanical control for actuating a remotely positioned device including a plurality of individual load bearing carriers arranged for movement within a curved housing and joints interposed between the individual carriers to space the carriers from one another and to enable relative pivotal movement therebetween as the control moves within the curved housing.

Abstract: An adjusting device for controlling the position of a gas lever in a motor vehicle in cooperation with a speed controlling servo-mechanism arranged in the vehicle for delivering a control signal, comprises an electromotor energized by the control signal, a shaft supported on a support for rotation about its axis and for movement along its axis, an electromagnetic coupling having a disc-shaped armature rotatably supported on the shaft and an electromagnetic member fixedly connected to the shaft. The electromagnetic member of the coupling is energized by the control signal to engage with the armature. A first reduction gear is arranged between the electromotor and the armature. A locking arm is pivotably supported on the support and linked at its free end to the gas lever and, at its other end, to the second reduction gear.

Abstract: A log-burning stove which contains a full refractory firebox, the stove designed to permit the easy insertion of large, economical, wood logs, particularly green logs, which stove comprises a shell defining a combustion chamber, the combustion chamber fully lined with refractory material, and having an entrance and a full-length loading door adapted to permit the easy introduction of logs into the combustion chamber, the door adapted to move between a closed, upright, sealed position and an open supporting position extending generally laterally from the lower portion of the entrance opening, the door containing roller means on the internal surface thereof which provides for the lateral movement of a large log thereon which permits the positioning of the log adjacent the center of the entrance, whereby, after said positioning of the log adjacent the opening, the log may be moved inwardly through the entrance and into the combustion chamber.

Abstract: The specification discloses a prefabricated factory built fireplace for on site installation with a dual opening hearth. The fireplace has a firebox disposed over the hearth which is formed of two upstanding sidewalls with front and rear panels disposed therebetween. Each panel defines a relatively large rectangular opening for providing front and rear access to the hearth. A hood, disposed above the hearth and connected to the firebox, defines a flue in the top portion thereof for venting combustion products of the firebox into the chimney. The sidewalls of the firebox and the hood are formed of a triple insulated wall structure containing an outer, intermediate and inner casing. The outer casing is separated from the intermediate casing by insulation material and the intermediate casing is separated from the inner casing by an air passageway which communicates between the inside of the firebox and the flue.

Abstract: A roller for a paper machine, including: a tube passing axially through the shell of the roller; a respective holder for each of a plurality of counterbalancing weights; the holders being annularly spaced around the tube; a spring pushing each holder around the respective weight supported thereon toward the inside surface of the roller shell.

Abstract: A fireplace and room heater that makes use of both natural air convection and forced air principles to efficiently heat an adjacent room. The fireplace and heater is freestanding and includes a firebox that is enclosed on three sides by a shell. The shell forms an air space between its walls and the firebox that is used for passage of air. A bulkhead separates the space into two distinct plenum chambers, an upper chamber and a lower chamber. A blower is provided at the rear of the unit. An intake of the blower opens into the lower plenum chamber. A discharge of the blower opens into the upper plenum chamber. Air is drawn through the lower plenum chamber by the blower and is forced outwardly through the upper plenum chamber through the blower discharge. The blower is controlled by a rheostat and thermostat to facilitate selective adjustment of air flow through the unit.

Abstract: This device comprises a generator of electric signals adapted to generate a first signal whose frequency is proportional to the speed of the output shaft of the transmission and whose amplitude is a function of the load of the motor with which this transmission is associated, and means for producing from said signal the ratio change characteristics.The device further comprises means for producing from the generator signal an additional electric signal whose amplitude is a function of the frequency of the first signal, means for weighting and comparing said first signal and said additional signal so as to obtain a signal representing periodically the desired state of the transmission, and means for memorizing the desired state of the transmission connected to the measuring and comparing means to change the transmission from one ratio to the next ratio as a function of the signal produced by the weighting and comparing means.

Abstract: A Baffled Stove is described having a generally rectangular heating structure with its lower or bottom portion adapted to form a firebox for receiving fuel such as wood or coal. A primary air passageway is provided for introducing air into the heating structure at or near the level of the firebox. Controls are also provided to adjust the quantity of primary air introduced into the heating structure. A hinged door is mounted in the front door of the rectangular heating structure for introducing fuel into the firebox. A secondary air inlet is in communication with a conduit positioned in a plane horizontal to the firebox to provide a baffle for directing the flow of the products of combustion and also for preheating the secondary air as it passes therethrough. The preheated air exits at a point opposite to the secondary air inlet.

Abstract: Disclosed is a support assembly for a campfire cooking utensil in which a horizontal arm may be adjustably positioned along a vertical support member by means of spaced, notch gripping apertures in plates carried by the arm. An adapter member releasably joins the free end of the arm and a cooking implement which is rigidly attached to the adapter. Inwardly directed flanges on the free end of the arm extend into longitudinal slots in the adapter and, adjacent the open, entry end of the slots, abutments are provided. The width of the slots and the abutment height are sized so that the adapter and the arm are locked against separation when the adapter is cocked slightly, under load, with relation to the arm.

Abstract: The efficiency of a convective heating system employing an elongate firebox is dramatically increased by, inter alia, increasing combustion zone volume to approach that of the firebox and increasing residence time of rising combustibles at ignition temperatures.

Abstract: A heating stove has a fire box composed of first and second pluralities of parallel aligned connected vertically oriented curved open-ended conduits lower extremities of the conduits of said first and second pluralities being aligned for contacting a common planar surface to support the stove, with the fire box further being formed by generally planar front and back plates, of substantially the same size and shape, with the front plate having an inlet port therethrough and the back plate having an exhaust port therein. The conduit central portions are largely within the stove fire box. A baffle within the fire box promotes three-pass flow of hot air across the conduit surfaces within the fire box. The first and second pluralities of curved conduits are opposed and in interdigitated engagement. Curved strips separate the curved conduits and thus facilitate stove construction with the conduits in interdigitated engagement.