Abstract: A two-position bicycle pedal having heel stops at different distances from the spindle, such that either the arch or ball of the foot is positioned over the spindle. A heel step is provided, for support of the heel, when the arch of the foot is over the spindle.

Abstract: Disclosed herein is an arrangement for counteracting mass unbalance in a rotatable assembly, such as the rotor assembly of a gyroscope. The invention proposes the use of two coaxially and mutually independently rotatably displaceable, mass eccentricity-producing balance weights, of which each can be assembled with a support element forming part of the rotatable assembly in any one of a great number of angular orientations.

Abstract: A mirror assembly for vehicles including improved support apparatus for the mirror providing combined pivotal movement about a pair of perpendicular axes and especially adapted to minimize vibration of the mirror and rotation of the mirror in its own plane whereby blurred images are substantially eliminated. The support apparatus includes curved surfaces for supporting and guiding pivotal movement of the mirror. An elongated projection extending from one of the curved surfaces and a corresponding socket receiving the projection and located in the other curved surface include a plurality of cooperating surfaces which minimize and substantially prevent said vibrational, rotational movement. Preferably, the assembly includes remote control wires for pivoting the mirror while the projection and socket have mating shapes of a cross when viewed in cross section.

Abstract: A balanced multiple-throw crank-shaft wherein the free forces of the first and second orders forming resultants for the whole crank-shaft of the forces produced by each coupling are substantially zero and at least some of the crank-throws are shifted or offset angularly, respectively, by such a small angle in one direction of rotation and by such an amount relative to the corresponding circumferentially uniformly distributed angular positions they would assume in a configuration with angularly equally spaced crank-throws in orthogonal projection on a plane perpendicular to the geometrical spin axis of rotation of said crank-shaft that an improved balancing ratio will result therefrom.

Abstract: A dynamically tuned gyroscope having a single gimbal has torsion flexures with torsional stiffnesses such that, at its tuned speed, the gyroscope is insensitive to angular vibration at a frequency of twice the rotor rotational speed. The drive shaft is connected to a first torsion flexure having an effective torsional stiffness K.sub.1 of zero, K.sub.1 being made zero by the use of ball races or pivots, by known mechanical methods such as over-center or toggle spring action, or by the use of magnetic or electrostatic systems. The rotor is connected to a second torsion flexure which is orthogonal to the first flexure. The second torsion flexure has a torsional stiffness K.sub.2 equal to 4w.sup.2 r.sub.3.sup.2 m.sub.3 where w is the tuned rotor speed, m.sub.3 is the component mass of a gimbal, on which the torsion flexures are mounted, on an axis through the center of gravity of the gimbal and normal to the plane of the gimbal, and r.sub.3 is the distance of the component mass m.sub.

Abstract: Device for counteracting imbalance in a rotary body and automatically restoring it to a balanced condition. The device comprises a fluid-filled bore in which a throttling member moves freely, which transmits the pressure differentials developed about the axis of rotation during rotation of the body to a balancing mass movable in chambers disposed about the bore to displace the balancing mass a distance proportional to the pressure differentials and is effective upon the balancing mass to restore the body to balanced condition.

Abstract: Means for actuating a balancer of an engine including a crankshaft, pistons and connecting rods, comprising a pair of balancer shafts located opposite sides of the crankshaft and actuated thereby. One of the balancer shafts is formed to serve for a rotatable shaft of a subsidiary device of the engine, such as an oil pump, an air pump, a dynamo or a water pump.

Abstract: The invention relates to inertial energy storage devices comprised of anisotropic filamentary elements and comprises several embodiments of a disc flywheel which, although consisting essentially of anisotropic elements, is effectively isotropic in total structural character. A preferred embodiment of the invention is generally formed by weaving anisotropic filamentary elements together at regular angles to each other, certain of the woven anisotropic elements being parallel to each other to form essentially unidirectional layers within each woven disc-like unit. The woven disc-like units thus formed are bonded together to form a structure of useable size, the units being either randomly oriented relative to each other or oriented at regular angles to each other.

Abstract: A fluidic/pneumatic, two-axis, free-rotor gyro in which the free-inertia or is gas bearing supported on a spherical portion of a rotatable gas bearing rotor, both rotors being connectable to controllable sources of drive fluid pressure for separate drive and pneumatic pickoff and torquer units, the pickoff units providing control signals representative of the frequency of each rotor. The invention includes a further aspect of comparator control circuits responsive to said control signals for selecting and maintaining the speed of each of the two rotors independently and in a ratio selected to provide G.sup.2 drift compensation. A further aspect of the invention comprises the compensation of case-erection drift by auto-erection drift by specific scaling of the gas-bearing and windage air gap parameters.

Abstract: A safety guard structure including a guard member adapted to be interposed between a mechanism such as a punch press and the operator thereof to protect the operator from injury. In one form of the invention the guiding frame for guiding the guard member between its upper and lower positions is swingably connected to the mechanism to be guarded to permit the entire guiding frame to be swung upwardly so as to present no interference when it is desired to modify the mechanism or to change the dies thereof. In another form of the invention the guide structure for the guard member is entirely positioned above the area to be protected so as to present no interference when it is necessary for operators to work around the machine. An interlocking device is provided to prevent operation of the mechanism except when the guard member and its guide structure are in proper operating position.

Abstract: A control linkage arrangement for the throttle and transmission of a lift truck or the like is provided with a juxtaposed arrangement of a throttle and two transmission control pedals, arranged for simultaneous operation of the throttle and either one of the forward or reverse transmission control pedals by one foot of an operator for controlling translation of the vehicle.The forward and reverse pedals are arranged to either side of the throttle pedal, with all pedals having a common neutral position and all movable in the same direction for their control functions. A slot in the throttle pedal and a pin on one of the adjacent transmission control pedals permits the throttle pedal to move a predetermined amount before engagement of the pin of the adjacent pedal by the foot of an operator.

Abstract: A torsional vibration damper having two inertia members. A first inertia member is coupled to a hub by elastomer. A second inertia member is positioned within an annular cavity and is surrounded by a liquid of high viscosity. Under the influence of torsional vibrations relative movement arises between the hub and first inertia member, the hub and the second inertia member, and the first and second inertia members. The latter relative motion inhibits the attainment of resonance by either of the two inertia members.

Abstract: An improved vibration damper for use with oscillating bodies and the method of making said damper. The damper includes an inner core member or hub, an outer inertia mass member or inertia ring surrounding and spaced from the hub, and compressible resilient damping means such as a layer of compressible elastomeric material under a limited compression and a retaining means such as a metallic band disposed between the core member and the inertia member. The damping means is chemically adhered to both the retaining means and the core member or the inertia member and the retaining means is fixed in an interference fit to either the outer peripheral surface of the core member or the inner peripheral surface of the inertia member. The damper is particularly useful for mounting on the end of a crankshaft of an internal combustion engine.

Abstract: A hand brake arrangement for motor vehicles with a storage tray arranged between the front seats thereof, preferably on a center tunnel, in which the hand brake lever is so intergrated into the storage tray that it simultaneously serves as a part of the side wall thereof.

Abstract: A device for rotating a spool of a fishing reel, comprises a handle stud connected co-operatively with one spool for winding up a fishing line thereon and an operating handle mounted to the end of the handle stud, which operating handle is formed of two arms so as to make changeable the distance between a handle grip and the handle stud, whereby the spool may be rotated to wind up the line thereon with a greater strength from an elongated handle arm for fishing for big game-fish, while, it may be nimbly rotated with a shortened handle arm for fishing for small fish.

Abstract: Apparatus for balancing or equalizing the mass forces of an engine having reciprocating pistons turning a crankshaft rotates a drive gear twice as fast as the crankshaft. A planetary gear is eccentrically carried on the drive gear and meshes with internal teeth on a stationary sun gear at a gear ratio of 1:2. The planetary gear has an eccentrically placed counterweight of a mass such that it balances the mass forces of the engine of the same order as the ratio of drive gear to crankshaft speed, Order II mass forces for this example. The drive gear also has an eccentrically placed counterweight which balances the planetary gear as they rotate with the drive gear. The counterweight on the planetary gear is preferably placed as near as possible to the pitch diameter of the planetary gear so as to make its path of travel as nearly linear as possible.

Abstract: A control lever mechanism which operates to provide a different mechanical advantage at different points in the range of movement of a main operating control member and in dependence on the force applied to, and the force of resistance to the movement of, the main control member is disclosed. The main control lever is pivoted to a fixed fulcrum and linked to a force transmission member by a second pivot forming a fulcrum which is movable along an arcuate path closer to or further away from the fixed fulcrum. When both the fixed fulcrum and the movable fulcrum lie on the same side of the line of action of the force transmission member a component of the applied force tends to move the movable fulcrum towards the fixed fulcrum to increase the mechanical advantage of the control lever.

Abstract: The rotating shaft manipulating member comprises at least one body having a boss provided with elements for driving the shaft, for fixing the body onto the shaft, and a turning knob. The boss comprises a bush slotted parallel to its axis and the above-mentioned body has two spaced parts joined at one of their ends to the bush on either side of the slot and carrying at their other end a half-journal whose axis is parallel to that of the bush, while the turning knob comprises a ring which grips the two half-journals and maintains them in a close together position.

Abstract: A flywheel for use with tools such as punch presses and the like which includes a substantially flat mounting plate with means for mounting the plate to the machine upon which the wheel will be used and providing the flat plate with a strip of material about the periphery thereof which material strip is formed from coiling or winding strip stock to the proper dimension for attachment to the periphery of the wheel through welding or the like.

Abstract: The adjustable error correction cam mechanism which defines the error signal necessary to compensate for inequalities in the attenuation of the optical paths of a twin-beam spectrophotometer is of the kind utilizing a closewound helix of spring steel wire whose outer periphery constitutes the cam working surface. The cam follower is of an improved design, being formed as a slider instead of a roller in order to provide the necessary accuracy of operation.