Abstract: Solenoid motor means for operating a multiple blade damper device; said blades being pivotally mounted in a common housing; said housing being constructed to reside in an open ended duct boot that is part of the duct network for the distribution of the heating/cooling medium of a central heating/cooling device. Each of the multiple damper blades is attached to a rotatable means such as a timing pulley or gear; said rotatable means are rotated by a rack having engaging means such as gear teeth; said engaging means are interconnected through a carriage to a plunger common to dual solenoids; said carriage translates linearly with said plunger to provide aforesaid rotation to rotatable means to open or close damper blades in accordance with commands of a temperature control means.

Abstract: A bracing device for machine tools which is formed with a compensation unit having a housing with threaded pins arranged in the housing rotatably displaceable relative thereto with a hydraulic rotary drive being provided for actuating the threaded pins.

Abstract: A stroke enlarging mechanism comprises a stationary rack, a saddle member driven by an actuator relative to the stationary rack, an operating arm movable relative to the saddle member, and a movable rack secured to the operating arm. A first pinion and a second pinion are rotatably mounted in the saddle member to be engageable with the stationary rack and the movable rack, respectively. A coupling device couples the two pinions with each other. Upon driving the saddle member relative to the stationary rack, the two pinions are rotated thus displacing the operating arm for a distance larger than the driving stroke of the saddle member.

Abstract: A drive system for a machine including a transmission for converting rotary motion into linear reciprocating motion for driving a rack and a pinion is disclosed for use in connection with moving the pinion in oscillating rotary fashion to be the input for a differential. The differential is selectably controlled to either rotate or remain fixed and permit at least one of its outputs to rotate. The result of the drive system is to either swing a member connected to the differential output which member holds a stack of disc-like objects from vertical to horizontal or alternatively to hold a plurality of such stakes in vertical position and rotate them.

Abstract: An apparatus for driving and controlling a watercraft or the like having at least one pair of steerable propellers, the steerable propellers of each pair being located substantially symmetrically on opposite sides of the center line of the watercraft, such center line extending through the center of lateral resistance of the watercraft. A control element is provided for carrying out control movements in two degrees of freedom. Each control movement acts for remote control of the steerable propellers through transmitters corresponding respectively to such steerable propellers. Movement of the control element in one degree of freedom effects a rotation about an axis for controlling, through the transmitters, a synchronous pivoting of the servo propellers of each pair. Movement of the control element in the second degree of freedom effects movement of a rack element for controlling, through the same transmitters, an oppositely directed pivoting of the servo propellers relative to one another.

Abstract: A variable displacement vane pump is provided in which a pair of rings having oval-shaped inner contours are rotatably mounted in side-by-side relationship. The rings are adapted for relative rotation to each other from a first position wherein the inner contours are in register with each other and a moved position wherein the inner contours are out-of-register, and means are provided for effecting the relative rotation, which include a gear system operatively connected to the rings. A rotor member is mounted for rotation within the rings and is formed with a plurality of circumferentially spaced recesses which extend the entire axial length of the rotor. Each of the recesses carries a pair of vanes in abutting relationship. The vanes are mounted for radial movement in the recesses and are adapted for slidable contact with the inner contours of the rings. The vanes form two side-by-side rows of vanes with each row in tracking relationship with the inner contours of the rings.

Abstract: A clutch release assist mechanism for avoiding excessive clutch pedal efforts. The assist mechanism includes a spring-loaded apparatus to bias the clutch toward a release disposition, but the assist function is not activated until after initial movement of the release mechanism has been effected by the operator through pedal displacement. The amount of spring bias to assist the mechanism is less than that of the clutch to permit the clutch to revert to a closed or engaged position once the release mechanism has been deactivated. This mechanism includes a rack operated in conjunction with a piston and cylinder arrangement to provide for "free travel" before activation of an assist spring. The rack in turn operates through a sector or pinion to rotate a clutch release shaft between a clutch disengaged and engaged positions.

Abstract: A thrust reverser for the gas stream of a fan jet engine. The engine having a surrounding cowl which forms a fan duct therewith that is divided into a forward fixed and an aft translatable section. The thrust reverser mechanism comprises the plurality of blocker doors rotatable in and out of the fan duct. The rotation mechanism of each of the blocker doors comprises a pinion gear rotatable about a central axle which engages the teeth of a pair of opposing gear racks, one gear rack is attached to the forward cowl section and the other is attached to and carried by the aft cowl section and at least one link member pivotably connected at one end to the axle and at the other end to one of the blocker doors. The translation of the aft cowl section causes said blocker doors to rotate in and out of the fan duct and expose and cover gas reversing cascades.

Abstract: A squeeze type manual actuator including a control arm with a pair of hand grips extending from the upper end of the arm, at least one of the hand grips being mounted on the arm for movement toward and away from the other hand grips. The hand grips are provided with gripping pads and have a normal spacing in which the pads are respectively engageable by the palm and finger tips of one hand of the operator. The movable hand grip engages a plunger having a return spring. A signal producing device is coupled to the plunger for producing an output signal of pre-selected polarity and which varies in accordance with plunger displacement. In the preferred embodiment of the invention the arm has upper and lower sections with limited lost motion between them in opposite directions from a neutral position.

Abstract: An air conditioner of an automatic temperature adjusting type used particularly for controlling the air temperature within a passenger compartment of an automotive vehicle. According to the present invention, the air conditioner controls simultaneously the air flow rate of a fan providing the air supply, and an air mixing door which controls the flow of air through either a heater or a bypass around the heater. The control is such that over an intermediate portion of the adjustment range the fan and air mixing door are operated together whereas at end portions of the adjustment range the fan is adjusted without moving the air mixing door. This is achieved by use of a particularly convenient gear mechanism of novel design.

Abstract: A column mount is provided which is particularly useful in a machine tool capable of being assembled to perform either horizontal or vertical machining operations. The mount includes an adjustably movable support member for reciprocating a tool bit head assembly over a given length along a column, the column extending vertically from the machining tool when performing vertical machining operations. The mount operates to allow the head assembly support member to be adjustably reciprocated from a selected starting position on the column above a workpiece, and enables the support member to be readily moved along the column to the desired position.

Abstract: A gear assembly has a driving pinion, a rack and an intermediate gear coupling the pinion and rack. The teeth of the pinion, gear and rack are of the same pitch, the teeth of the intermediate gear being separated into one sector of teeth which engage the pinion and another sector of teeth which engage the rack. The axis of the intermediate gear is off-center, the radii of curvature of the pitched circles of the two sectors of the intermediate gear are different, and the teeth of the two different sectors of the intermediate gear are not integrally related to the circumference of the respective pitched circles.

Abstract: A pushbutton tuner with its reduced size includes linkage means operatively connected a tuning slider laterally positionable in accordance with the setting of the tuner. A link engaging pin provided on a pushbutton operative member engages with the linkage means upon depression of the pushbutton operative member so as thereby to move the slider depending upon the preset position of the engaging pin.

Abstract: In a pivotally mounted member of the memory fine tuning arrangement for a turret type television tuner, a pivotally moved lever plate provided integrally with a pivotal shaft having head portion, neck portion and body portion, is pivotally mounted on a front wall chassis base by setting the neck portion of the pivotal shaft into a notch of the front wall, wherein assembly of the lever plate to the front wall chassis base can be achieved by the two steps of inserting the head and neck portions of the pivotal shaft into a large opening portion of the notch in the front wall and slidingly setting the neck portion in a small opening portion from the large opening portion through continuous opening portion of the notch. To ensure easy and accurate assembly, a vertical support for the pivotal shaft on the front wall is affixed to the pivotally mounted member so that the parallel relation between the front wall and the lever plate is maintained.

Abstract: A pair of slotted, sector-shaped centrifugal weights 7, 8 are radially slidable on posts 5, 6 upstanding from a disk 4 mounted on the drive shaft 2 of a reversible electric motor 1. A cup member 11 carrying a pinion gear 13 is rotatably journalled on the shaft, and includes a cylindrical wall 11a surrounding the weights. A reduction gear mechanism 12 transmits the rotation of the pinion gear to a pivotally mounted sector gear 16, to which a linearly movable actuating rod 17 is connected. Alternatively, a plurality of sector-shaped weights 27 may be accomodated in similar shaped cavities between a pair of radially partitioned discs 24a, 24b.

Abstract: A pushbutton preselection tuner in which pushbuttons cooperate in different locations with a pivotable lever coupled to a slide which in turn is coupled to the tuning means. Continuous tuning is provided by driving the slide itself. This tuner has a compact, flat shape which can easily also accommodate cassette apparatus.

Abstract: In an electric flatiron with a soleplate and central upstanding boss and having a handle having a temperature adjusting lever in the front of the handle, an improvement is provided in the temperature regulating assembly that comprises a snap action thermostat which is supported on the boss with a substantially vertically movable adjusting screw to vary the thermostat settings. An insulated cap is provided on the top of the screw and the cap has an outer splined surface. A rod is connected at one end to the temperature adjusting lever forward of the screw for rotation by lever movement for setting temperature. The rod has an offset portion at its other end loosely fitting in a driving engagement over the splined surface so the offset slides vertically over the splined surface forming a universal-like connection as the rod is rotated by the lever to turn the screw and vary the thermostat setting of the iron without undue backlash.

Abstract: A tuning unit with a bandswitch for high frequency receivers having a potentiometer system for the control of capacity diodes is disclosed. The potentiometer system includes a plurality of parallelly disposed resistance paths on which wipers can be moved by means of screw tuning spindles mounted beside one another in a common housing made of an insulating material. The bandswitch is formed of metal wires and is associated with each tuning spindle. The tuning spindles are joined for rotation with sleeves simultaneously forming the operating knobs which are carried in apertures in the front plate and each have a flange engaging the back side of the front plate about the apertures. The flange is slightly larger than the cross section of the apertures and tapers conically away from the back side of the front plate.