Abstract: A pair of mower deck lifting ramps are mounted to a top surface of a mower deck for supporting a pair of tractor tires to ride over belts and pulleys on one side of the deck. A first carrier engagement member and a second carrier engagement member are attached to each drive-over ramp. The first and second carrier engagement members engage the upper and lower parts of a carrier attached to a lift arm of a loader to raise and turn the mower deck.

Abstract: A pair of mower deck lifting ramps are mounted to a top surface of a mower deck for supporting a pair of tractor tires to ride over belts and pulleys on one side of the deck. A first carrier engagement member and a second carrier engagement member are attached to each drive-over ramp. The first and second carrier engagement members engage the upper and lower parts of a carrier attached to a lift arm of a loader to raise and turn the mower deck.

Abstract: An apparatus for the mechanical cleaning of the interdental spaces by dental floss comprising an outer holder containing a delivery reel of the fresh dental floss and a take-up reel of the worn-out dental floss, a drive mechanism for reciprocating the operating length of the dental floss between the arms of a fork to be positioned within the mouth in the interdental spaces, and a mechanism provided with friction device for rotating the delivery and take-up reels as well as the driving wheels transmitting the movement of the drive mechanism to the delivery and take-up reels, an outside case including the drive mechanism for the above-mentioned reciprocation and the power supply battery, a support base for two holders and a drive case carrying an induction coil for recharging the battery and including two sockets for holders.

Abstract: Motor-driven apparatus for cleaning spaces between teeth by dental floss comprising a dental floss for cleaning the spaces between teeth, motor means (11), a feeding reel (24) of the fresh dental floss, a take-up reel (25) of the worn-out dental floss, a set of pulleys (18, 20, 21A, 21B) about which the dental floss is running between feeding reel and take-up reel, and reciprocating motor means (13, 15, 16, 18) to reciprocate the operating length of the dental floss as well as to keep it stretched and to replace the dental floss as it is worn-out.

Abstract: A temperature controlled soldering iron with a heating element having a positive temperature coefficient arranged as one leg of a Wheatstone resistance bridge such that the voltage across the heating element signals the temperature of the soldering iron. A comparator is connected across opposite nodes of the bridge and turns off a switching element to cut current flow through the bridge when the heating element is above the desired temperature. A pulse generator continuously supplies pulses to briefly restart current flow through the bridge and allow the temperature to be sensed. The pulses are short duration and occur regardless of whether the comparator has previously turned off current flow, and independent of the temperature of the heating element. After each pulse the comparator controls current flow by leaving the flow on or turning it off according to the temperature of the heating element as measured by comparison of the voltages on the opposite nodes of the bridge.

Abstract: A soldering tool wherein the soldering tip comprises part of a single loop of iron that forms the energizer means, temperature sensor, heating element and solder melting member. The power oscillator comprises a primary transformer coil that is in series with a primary capacitor to form an LC resonance circuit. The primary transformer coil is inductively linked to the iron loop so that the resistance of the soldering tip forms a load resistance on the LC resonance circuit. The power supply includes first and second power transistors connected to a source of DC current. The base of each power transistor is inductively linked to the primary transformer coil so that the power transistors alternately conduct and supply power to the power oscillator. The frequency and amplitude of oscillations in the power oscillator determines how often and how long the power transistors conduct.

Abstract: A tape transport system for cassette tape recorders wherein a member engages the drive belt between the two flywheels and exerts a dragging action, such that the belt lengths each side of the member will be respectively tight or not tight according to the direction of rotation of the drive pulley thus increasing the traction on the tight length of the belt. The corresponding pulley will rotate at a slightly higher speed than the other pulley and the tape length between the two transport units will always be automatically tightened up.

Abstract: A tape tensioning system for a tape recorder comprising a train of intermeshed gears supported by an elastically biased moving support which cooperates with support for the magnetic head and pinch roller support so as to move from a retracted inoperative position to an advanced operative position, wherein two outer gears of a train of gears are meshed with one of the reel driving toothed members in order to rotate the outer gears of the train in opposite directions to effect a tension in the associated tape being transported between the supply and take-up reels.

Abstract: A reversible gear driving mechanism for transmitting the movement of a motor member of the reversible type is disclosed having two last gears mounted on a swinging support adapted to swing from a first position, where the first one of the two last gears is in mesh with a first gear wheel utilizing the movement or first final gear wheel, into a second position where the second last gear is in mesh with a second gear wheel utilizing the movement or second final gear wheel. The driving member also including a shiftable or sliding control member adapted to take two stable positions and controlled in turn by the shift of the swinging support so as to take one or the other position according to the position taken by the latter.

Abstract: The specification discloses a mechanism for controlling the introduction and braked ejection of a tape cassette for use in cassette tape recorders employing a plate having a central tongue integrally formed therewith to be slightly bent downwardly in an intermediate position, the plate also being provided with an abutment pin for cooperation with the introduction and ejection lever of the mechanism.

Abstract: A cassette tape recorder drive mechanism including a capstan and an associated pinch roller, a first tape guide means causing the tape to be partially wound on the capstan and a second tape guide means adjacent the first guide means mounted on the axis of the pinch roller for selective engagement with the capstan to vertically restrict movement of the tape in contact with the capstan regardless of the direction of tape movement.

Abstract: A unit for transmitting the movement of a motor to the cassette spool driving gears in an autoreverse cassette tape recorder is disclosed comprising a drive mechanism automatically operating in normal forward and reverse and in fast forward and rewind both for normal forward and reverse operations and a braking mechanism adapted to automatically brake both in normal forward and in reverse and in fast forward and rewind. The drive mechanism has first and second double gears carried by a movable support, an operation lever for the support, a control mechanism for the operation level, and a transmission output mechanism. The braking mechanism has an elastic plate pivoted in the middle between two cassette spool driving gears and a disc pivoted with the plate.

Abstract: A driving unit having a rotatable driving roller and a driven roller, an elongated member capable of moving longitudinally and independently of the rollers, said elongated member comprising a rigid bar with a rounded upper surface and a strip of flexible material in contact with said surface, said driving roller engaging said flexible strip and said strip remaining substantially tangential to the rounded upper surface regardless of the position of the rotatable driving roller or the interrelationship of the various parts.

Abstract: A push-button controlled device is provided for storing a number of preselected positions of a control member controlling the variable condition of a second device such as an electrical circuit.A plurality of push button units are operable both for storing a position of the control member and for selecting the stored position.

Abstract: A control mechanism for a cassette tape recorder including an articulated control lever provided with members for engaging the cassette and with members for raising and lowering the cassette into and out of the playback position.

Abstract: A pushbutton control apparatus particularly suited for an automobile radio or the like. The position of a support member controls, e.g., the tuning of the radio. Preset recording elements fixed to the support member cooperate with respective pushbutton assemblies to move the support member to preselected positions when the individual pushbuttons are pressed. Apparatus is provided to preset the recording elements by allowing the angular position of a particular element to change with respect to the support member.