Abstract: In accordance with one aspect of the present description, a shoe treatment device is provided having a shoe interior engagement form expandable from a latched, contracted state to an expanded state. A user operated slide actuator positioned exterior to the shoe may drive the engagement form to expand to the expanded state. The slide actuator may be actuated to contract the engagement form back to the contracted state. A latch may latch the engagement form in the selected contracted or expansion state to facilitate insertion and removal and treatment of the shoe. Other aspects are described.

Abstract: In accordance with one aspect of the present description, a shoe treatment device is provided having a shoe interior engagement form expandable from a latched, contracted state to an expanded state. A user operated slide actuator positioned exterior to the shoe may drive the engagement form to expand to the expanded state. The slide actuator may be actuated to contract the engagement form back to the contracted state. A latch may latch the engagement form in the selected contracted or expansion state to facilitate insertion and removal and treatment of the shoe. Other aspects are described.

Abstract: In accordance with one aspect of the present description, a shoe treatment device is provided having a shoe interior engagement form expandable from a latched, contracted state to an expanded state. A user operated slide actuator positioned exterior to the shoe may drive the engagement form to expand to the expanded state. The slide actuator may be actuated to contract the engagement form back to the contracted state. A latch may latch the engagement form in the selected contracted or expansion state to facilitate insertion and removal and treatment of the shoe. Other aspects are described.

Abstract: In accordance with one aspect of the present description, a shoe treatment device is provided having a shoe interior engagement form expandable from a latched, contracted state to an expanded state. A user operated slide actuator positioned exterior to the shoe may drive the engagement form to expand to the expanded state. The slide actuator may be actuated to contract the engagement form back to the contracted state. A latch may latch the engagement form in the selected contracted or expansion state to facilitate insertion and removal and treatment of the shoe. Other aspects are described.

Abstract: A steerable trailer is provided with a trailer hitch which extends forward to attach to a corresponding hitch on the towing vehicle. The towing vehicle hitch further includes an extending arm, referred to as the position arm, to which the end of the piston of a hydraulic master cylinder carried by the trailer is pivotally attached. A slave cylinder carried by the trailer adjacent to the steerable wheels is in hydraulic communication with the master cylinder for turning the steerable wheels. A pair of hydraulic lines communicate between the master cylinder and the slave cylinder to extend or retract the slave cylinder piston rod. The steerable wheels are rotatably and pivotally connected to an axle by conventional steering knuckles. A pivot arm is affixed to the steering knuckle of one of the wheels and to a tie rod extending from the steering knuckle of the opposite wheel. The extending end of the cylinder rod of the slave cylinder carries a steering knuckle to which is pivotally attached the pivot arm.

Abstract: A rotor assembly for a rotary power device consists of two opposed rotor sections which when assembled in the stator of the device have limited movement parallel to the axis of rotation of the rotor assembly. Each rotor section includes through running cylinders and a center passage for a drive shaft when the sections are assembled. Each rotor section defines inwardly extending support legs and a rear face which act to limit the travel of the rotor sections towards one another. The number of support legs is equal to one half of the number of cylinders in the rotor assembly. The base of the support legs includes a socket which is aligned with a socket in the rear face of the opposing rotor section. A guide pin and spring are disposed in the socket of the support leg and the guide pin extends from the socket into the rear face socket when the rotor sections are assembled.

Abstract: Method and apparatus for producing stereoscopic images for motion picture or TV using a single sensor or camera and a single lens. In carrying out the method of the invention, the camera lens is caused to rotate about an axis defined by the optical path of the incoming image rays. The apex of the cone is defined by the object being rendered. The base of the cone is defined by the image sensor portion of the camera and its circular path remains unchanged during an image rendering session. The lens of the camera, on the other hand, travels in a smaller circular path and the circumference of the path of travel of the lens is increased or decreased depending on the distance from the image to the lens and can change during the image rendering session. Apparatus comprises a frame which is driven by an electro mechanical drive mechanism for moving a camera support body through a conical path.

Abstract: The lens body of a camera for sensing moving images is adapted for producing a stereoscopic image by first and second spaced apart optical deflectors. The deflectors include reflective surfaces which lie in parallel planes with respect to one another and which are disposed at an angle to the optical path of incoming image rays. The second deflector lies generally in the optical path of the incoming image rays and deflects incoming image rays from the scene to the first deflector which lies in the path of the deflected rays. The first deflector in turn deflects the image rays to the image sensing means in the camera body. Both deflectors are caused to rotate slowly about an axis defined by the optical path of the incoming image rays while maintaining their relative positions with respect to one another. The orientation of the lens with respect to the image sensing means of the camera remains fixed during rotation of the deflectors.

Abstract: A rotary power device comprises an open ended stationary housing defining an interior having a sinusoidal cam track disposed therein and end walls closing each open end of the housing. At least one fluid inlet port and one fluid outlet port is provided in the end walls for fluid communication between the housing interior and the exterior of the end wall. A rotor assembly is disposed in the interior of the housing for rotation about the axis of the housing. The rotor assembly includes a central shaft extending axially through the interior of the housing which is rotatably carried by each of the end walls. At least one heat conducting disk is mounted on the shaft adjacent each of the end walls for rotation with the shaft. Each disk has at least two openings equiangularly located with respect to one another and aligned with corresponding equiangularly disposed openings in the other disk for mounting open ended tubular cylinder elements which extend between the disks parallel to the axis of the shaft.

Abstract: A method of recovering bitumen from a subterranean tar sand formation characterized by a plurality of steps. First, a continuous wellbore having a second section thereof contained within the formation and first and third sections thereof extending the second section to the earth's surface is formed. Next, the first and third sections of the wellbore are cased. Thereafter, a heated fluid is circulated through the wellbore contacting the formation to reduce the viscosity of the bitumen contained therein rendering the bitumen mobile. Subsequently, bitumen mobilized by the heated fluid is recovered via the wellbore.

Abstract: A method of producing bitumen from a subterranean tar sand formation characterized by the following muti-step process. First, a continuous wellbore having a second section thereof contained within the formation and a first and a third section extending said second section to the earth's surface is formed. Next, a perforated liner is inserted into the wellbore extending the entire length thereof and having perforations so positioned thereon to be adjacent the second section of the wellbore. Thereafter, a heated fluid is circulated through the wellbore, contacting the formation via the perforations, thereby reducing the viscosity of the bitumen contained therein rendering it mobile. Subsequently, the mobilized bitumen is recovered via the wellbore.

Abstract: A method of producing bitumen from a subterranean tar sand formation by the following multi-step method. First, an injection well is drilled to the formation and extended into the formation. Subsequent thereto, a perforated liner is inserted into the injection well extending the entire length thereof and having the perforations provided in the portion of the injection well in contact with the formation. Next, a plurality of production wells are drilled and completed into the formation positioned above and along the length of the injection well. Thereafter, a heated fluid is circulated through the injection well contacting the formation via the perforations and thereby reducing the viscosity of the bitumen contained therein rendering same mobile. Subsequently, the mobilized bitumen is recovered through the plurality of production wells.

Abstract: A method of recovering bitumen from a subterranean tar sand formation by the following multi-step method. First, an injection well is drilled to the formation and cased. Perforations are provided in the portion of the injection well contacting the formation. Next, a plurality of production wells are drilled and completed into the formation positioned above and along the length of the injection well. Thereafter, a heated fluid is circulated through the injection well contacting the formation via the perforations and thereby reducing the viscosity of the bitumen contained therein rendering same mobile. Subsequently, the mobilized bitumen is recovered through the plurality of production wells.