Abstract: A multifunction blower in which a common housing is employed to both increase and decrease the pressure of incoming air in separate chambers thereof. The increase and decrease in air pressure is adjustable by changing the impellers of the pressure and vacuum assemblies used therein.

Abstract: A rupture prevention ring consists of two coaxially arranged, spaced-apart stiff end rings wrapped in several layers of fiber cloth. Resin bonding is used around the end rings while in the intermediate area between the end rings, the fibers are not free of resin and hence not stiffened. Owing to the high energy absorption capability of the structure including the elastic yielding of the fibers without the resin, an excellent containment ability is obtained at a low weight. Fragments are effectively retained without jeopardizing the rotating blade and disk assembly of the damaged stage.

Abstract: In a copying apparatus having a sorter with a sheet stapling function; the sorter has a plurality of bins capable of independently moving up or down, wherein sheets are sorted into the bins sequentially from the top bin to the bottom bin; the bins are moved down to a position where sheets are taken by take-out rollers for transporting them to a stapling unit after the sorting operation; and the bins other than those assigned for the number of copy sets are moved down to the take-out position during the sorting operation. Further, a copying apparatus has a controller which inhibits a copying machine from starting to operate when both a non-sorting mode and a stapling mode are selected at a time and when the input number of copy sets is more than 2, and may cancel the stapling mode during the sorting operation in the stapling mode and continue the sorting operation even after canceling the stapling mode.

Abstract: An apparatus for folding sheet material comprises a rotatable magazine comprising two folding plates having end edges extending parallel to each other for holding the sheet material with portions thereof projecting beyond the edges of the folding plates, and two folding rams wherebetween the rotatable magazine is mounted and which are displaceable with respect to each other, each folding ram having a substantially planar guide face facing the magazine and for guiding the projecting sheet material portions and cooperating with the end edges of the folding plates for bending the sheet material along the end edges upon rotation of the magazine. The magazine is rotatable 180.degree.

Abstract: A rotary pump with an inlet flow duct having a convergent section upstream the tips of the rotor blades. The convergent section decreases the cross-sectional flow area of the inlet flow duct prior to the flow being introduced into the rotor, thereby creating a substantially uniform velocity profile in the flow just upstream the rotor blades.

Abstract: Boundary layer separation in a rearwardly skewed centrifugal impeller can be better controlled by designing the impeller blades with an "S" camber, i.e., with rearward curved radially extending blades in a centrifugal blower. The blades have a positive camber at a radially inward region and a negative camber at a radially outward region of the blade.

Abstract: A fluid cylinder assembly comprising a fluid cylinder having ports disposed at opposite ends thereof communicable with a source of fluid under pressure, a piston disposed in said cylinder having a first rod section extending through an end of said cylinder, extendable and retractable relative to said cylinder, the first piston rod section having an axial bore, a second piston rod section having a guide portion disposed in the axial bore of the first piston rod section and axially displaceable relative the first piston rod section, and means for detachably locking the first piston rod section to the second piston rod section.

Abstract: The present invention provides a kind of pneumatic combined with hydraulic brake chamber, especially relating to a powerful hydraulic brake chamber which is highly stable, ready to provide high-pressure and high-speed actuation and easy to be assembled, dismantled and maintained powerful hydraulic. Said pneumatic type brake chamber is consisted of the following major parts:______________________________________ a cylinder body, a cylinder cover, a central shaft, a shaft sleeve, a piston, a helical spring, a connecting rod, a coupling device, and an alarm device, ect. ______________________________________in which, the pneumatic mechanism is constructed by said cylinder body, cylinder cover, shaft sleeve, piston and helical spring; the hydraulic mechanism is constructed by said central shaft, shaft sleeve, piston and helical spring; and the connecting mechanism is constructed by said connecting rod and the coupling device.

Abstract: A rotary actuator includes a shaft rotatably mounted on a body, and a servovalve arranged to operate a vane motor for selectively rotating the shaft relative to the body. A portion of the shaft extends beyond the body. Supply and return passages are provided to the body and shaft so that fluid power supplied to the body is supplied to the servovalve and is also available at the end of the shaft beyond the body. Two or more such rotary actuators may be connected by intermediate brackets to provide a wrist actuator capable of movement about axes.

Abstract: A centrifugal pump mounting structure which allows easy, sturdy, and reliable mounting of a pump on a support bed in several different attitudes. The mounting system of the present invention includes legs situated at the opposite side of the pump to that of the pressure outlet opening and on both sides of the longitudinal plane passing through the pump shaft and the pressure outlet opening; in which the legs have two planar surfaces for mounting of the pump; and in which there are, on both sides of the pressure outlet opening substantially in the longitudinal plane passing through the shaft of the pump, brackets with planar mounting surfaces for mounting the pump.

Abstract: A steam turbine has an outer blade ring supporting a row of stationary blades and an adjacent downstream row of long rotatable blades. The outer blade ring has a generally conical flow-guiding surface for outwardly guiding the steam as it flows through the row of stationary blades. The outer blade ring is supported by a radially juxtaposed carrier ring having a flow-guiding surface axially adjacent to and extending outwardly from the flow-guiding surface of the outer blade ring. A spacer ring is axially adjacent to the carrier ring and has a flow-guiding surface adjacent to and extending outwardly from the flow-guiding surface of the carrier ring. An exhaust flowguide is axially adjacent the spacer ring and radially adjacent the row of rotatable blades for guiding the steam from the rotatable blades.

Abstract: A unitary exhaust gas housing for a turbo-engine comprises an outer ring, two intermediate rings defining the flow path for the hot gases, and an inner ring forming a hub with a hollow annular chamber. A temperature control device is provided including a bleed tube having one end fixed and communicating with the gas flow path for drawing off hot gases therefrom, the other end of the tube passing into the hollow chamber of the hub where it regulates the flow of gases by variation of the clearance j between the end of the tube and the opposing wall of the hub in response to relative radial movements of the tube and the hub according to the thermal states of the assembly.

Abstract: A computerized printing system particularly advantageous with word processing and data retrieval with personal computers prints pages on both sides of sheets carried as a continuous web for collation of the sheets with the printed pages counting those on opposite sides of the sheets in numerically ordered sequence when stacked in a fan-fold type array. Printed pages are printed on both sides of the web, and batches of two consecutive pages are alternately printed on the opposite sides of the web. Corresponding data processing and organization means provide for organizing, printing and collating the data, which can process fan-fold type webs directly to produce pages stacked with pages on both sides of the separable web sheets oriented in the same direction in numerical sequence.

Abstract: A hydraulic booster has a boost piston (19) which receives the thrust of boost pressure generated in a boost chamber (15) to move the boost piston for urging a master piston (12) of a master cylinder in a brake applying direction. An input member (17) is relatively movably with respect to the boost piston (19). A pressure regulating device has an input directional control valve (22, 45) for allowing or cutting off communication between the boost chamber (15) and an auxiliary power source (14). An output directional control valve (24, 46) establishes or cuts off communication between the boost chamber (15) and a reserve tank (9). The boost piston (19), the input member (17) and the pressure regulating device are arranged inside a housing (1). An input member positioning device brings the rear end of the input member (17) into contact with a stop member (51) which is anchored to the housing (1), when a pedal force is zero for stopping a rearward movement of the input member.

Abstract: A bypass turbofan jet engine subassembly. A row of structural fan stators and a row of structural compressor guide vanes have their outer ends attached to the engine outer duct. The structural stator inner ends are attached by an inner support cone to the outer race of the fan rolling element bearing and the structural guide vane inner ends are attached by another inner support cone to the outer race of the compressor rolling element bearing. The fan and compressor outer races are interconnected by a tie bar. The subassembly eliminates the engine fan and compressor frames.

Abstract: A centrifugal compressor having a two section diffuser which has a tapered section having a constant diffusing area along its radial length, and a straight section having an increasing diffusing area along its radial length, and a diffusing volute having a throat area significantly larger than conventional designs.

Abstract: A hydraulic cylinder (1) with a piston (5) made completely or partially of electrically conductive material comprises at least one opening (19, 20) for the mounting of an electric position indicator (21, 22). The openings (19, 20) are closed in a liquid and pressure-proof manner towards the interior of the cylinder (1) by means of circular plate-shaped bodies (17, 18) glued to the inner surface of the cylinder (1). As the plate-shaped bodies (17, 18) are made of a ceramic material, preferably steatite, they may allow passage of the magnetic field transmitted from the electric position indicators (21, 22). The openings (19, 20) are adapted in the end covers (2, 3) of the cylinder (1) for the determination of the end positions of the piston (5). Furthermore the cylinder may be provided with piston-braking means in the form of seal rings (12, 13).

Abstract: A one piece seal (42) having a resilient body (100) with a peripheral surface (102) on which first and second ribs (104 and 106) engage a housing (19) to establish static seals to prevent environmental air from entering a control chamber (22) and an inner surface (114) with first and second dynamic seals (120 and 128) located adjacent first and second bearing lands (116 and 118). The first and second dynamic seals (120 and 128) which surround a movable projection (38) flex to allow the projection (38) relatively radial movement while the bearing lands (116 and 118) retain the projection (38) in axial alignment during lateral movement of the wall (24).

Abstract: A quarter folder machine for accepting half fold signatures and converting them into quarter signatures. The machine receives half signatures in an incoming shingle running at relatively low velocity, strips and accelerates the signatures to travel seriatim in a high speed stream which passes through camming and crimping means to create the quarter fold. A decelerating and re-shingling section then converts the stream back into an output shingle which runs at relatively low linear velocity but at a high rate in terms of signatures per hour--for transport to some subsequent processing device. The machine is characterized by a very high throughput rate. It is flexibly adjustable to match to the velocity of and setback of an incoming shingle from various sources, and yet to determine by choice the setback and velocity of the output shingle.

Abstract: A piston head and rod assembly for use, for example, in a gear pump dry valve is disclosed. A cylindrical piston head is provided with a generally oval-shaped cavity formed therein which defines a minor diameter. The cavity opens through one end of the piston head. However, a portion of the opening is blocked by a radially inwardly-extending lip. The lip defines an opening diameter which is smaller than the minor diameter of the cavity. An end portion of a piston rod includes a reduced diameter neck portion and an enlarged diameter tail portion. The neck portion has an outer diameter which is slightly smaller than the opening diameter defined by the lip, while the tail portion has an outer diameter which is slightly smaller than the minor diameter defined by the cavity. To assemble, the tail portion of the piston rod is inserted through the portion of the opening of the piston head which is not blocked by the lip into the cavity.