Abstract: A process and apparatus are disclosed for taking a representative milk sample during the delivery of a milk charge from one container to another. With respect to the errors encountered in operating peristaltic pumps with different speeds of revolution, the invention predetermines a corrected pumping characteristic as a function of an acceptance characteristic and correspondingly controls the taking of samples.

Abstract: The miniaturized sampler is activated by a diaphragm motor that can be screwed together by hand. The sampler uses an elastomeric collection head and typically takes a small sample each time the diaphragm motor is activated. The collection head is connected to a piston by a pin and ring arrangement that can be economically manufactured and easily serviced. Because the collection head is smaller than prior art designs, it takes less force to activate. A smaller collection head can be driven by a smaller diaphragm motor which allows overall sampler size and weight to be reduced when compared with prior art designs.

Abstract: A flexible inert gas impervious housing for the sampler which can be squeezed to an essentially flat configuration in conjunction with a close/open/close valve assembly at both ends of the flexible housing that the buoyancy can be minimized by applying a vacuum to the flexible inert gas impervious housing prior to positioning the same on the sampler array, or prior to securing to a sampler cable for lowering into a body of water is disclosed. Pressure release means are provided to optionally open the valve assemblies when a preselected pressure is reached, usually coordinated with depth of immersion, at which time the sampler flexible housing has the vacuum released and it opens and is flushed by the fluid through which it is passing. Thereafter, means are provided to close the two valve assemblies to entrap the sample, based upon a signal, and to return the sample for discharge from the sampler for further investigation.

Abstract: The present invention relates to a torque wrench (1, 2) having an electronic measuring device which detects a prevailing torque by means of strain gauges, having a memory for the storing of measured values and an indicating device which indicates the minimum and maximum values reached by means of light-emitting diodes (5, 6, 7) of different color. In order to be able to use the torque wrench advantageously, in particular in routine work where the precise maintaining of a torque is of importance, the invention proposes that a measured value be stored by actuating an actuating button (8) which also serves to activate the torque wrench (1, 2).

Abstract: A tool adapted for inserting and removing pitot tubes or other sensing elements through a hot tap into a fluid conveying pipeline is mounted to the side of the hot tap. A drive tube is slidably inserted into a protective enclosing tube, with the enclosing tube being attached to the hot tap and the drive tube being attached to the sensing element. Rotation of a threaded drive shaft causes a threaded bushing connected to the drive tube to move upward and downward within the enclosing tube depending on the direction of rotation. Downward movement of the drive tube inserts the sensing element into the pipeline through the hot tap and upward movement of the drive tube removes the sensing element from the hot tap.

Abstract: An arrangement of cables, pulleys and cams has been invented which provides a simple, reliable, flexible and inexpensive method of converting rotary carousel motion in the horizontal plane into vertical motion of animals on the carousel. A cam is attached to the center pole of the carousel. The cam is positioned so as to interact with cables which are routed from the carousel animals to be given subsidiary motion (typically up-down). For up-down motion each cable is routed vertically from its animal to the overhead support structure and then along a radial passing neat the center pole and is fastened to the overhead support radially opposite the animal being moved. As the carousel, with animals and cables, rotate around the center pole the cam sequentially intercepts the cables forcing the overhead table paths to lenghten and drawing the animals upward to accomodate the cable path change.

Abstract: First and second screw threads along a feed screw permit a slide to be fed at two different speeds for a constant rotation of the feed screw. A first nut moves along the first thread. A second nut is threaded onto the outer diameter of the first nut for common translation along the first thread. Upon contacting a stop shoulder, the first nut stops translation and starts rotating with the screw. This rotation causes the second nut (and slide) to translate off the first nut and onto the second screw thread.

Abstract: An automatic transmission for mounting within the rear fork of a bicycle includes a plurality of pairs of constant mesh gears and a plurality of discs. Each disc is concentric with one of the gears in each pair and includes a notch for partially enclosing a centrifugally actuated pawl. The notches in adjacent discs face in opposite directions and all the discs but one include a spring for opposing the centrifugal force on each pawl to keep each pawl in a disengaged position. The one disc includes a spring for holding the pawl in an engaged position. The pawls are shaped to permit the bicycle to coast or freewheel.

Abstract: An anti-backlash nut having a central bore therethrough, wherein a portion of the central bore is threaded to cooperatively engage a lead screw. A free floating insert is disposed in a radial aperture in the anti-backlash nut, such that a threaded inner surface of the insert contacts the lead screw. The threaded insert may be radially biased or offset such that the threads of the nut body and the threads of the insert engage opposing faces of the lead screw threads to provide accurate and reliable motion of the anti-backlash nut upon relative rotation of the lead screw.

Abstract: A ball screw device includes a ball returning tube which is formed by covering the outer periphery of the tube with a heat shrinkable resin tube and heating the thus formed tube, formed of two halves, to shrink the heat shrinkable resin tube so that the two halves of the ball returning tube can be made integral. The ball screw device is advantageous in that it generates little noise, the ball returning tube has sufficient strength despite the splittable structure and manufacturing of the device is easy.

Abstract: A bicycle speed change lever assembly which includes a lever shift (9) extending downwardly from a mounting bracket (6a) which is attached adjacent an end grip portion of handlebar (1), and a lever pivotally supported on the lever shaft, the lever including a tubular body (7) rotatably fitted on the lever shaft (9), and a control arm (8) extending radially outward from the tubular body (7). The bracket (6a) has a forward extension (6b) so that the lever shaft (9) is arranged forwardly offset relative to an axis of the handlebar (1), and the lever shaft (9) is inclined to have a tip end deviating from a straight line which passes through a base end (9b) of the lever shaft (9) and is perpendicular to the forward extension (6b). This serves a number of purposes, namely to enable speed change operation while gripping the grip portion (2) of the handlebar (1), to enlarge the pivotal range of the control arm (8) to increase the number of speed stages, and to enable smooth pivotal operation of the control arm (8).

Abstract: A toggle type parking brake lever apparatus capable of surely holding a brake lever at a brake application position is provided. Attached to the brake lever is a pivotable stopper pawl, with which a stopper surface formed on a stopper plate is adapted to be engaged in a brake application condition so as to inhibit the brake lever from being turned in a brake releasing direction. A stopper releasing rod with a push button is provided longitudinally of the brake lever to pivot the stopper pawl, thereby to disengage the stopper pawl from the stopper face. The invention is also applicable to a brake lever which is supported to a lever bracket, tiltably back and forth, and left and right, by means of a universal joint.

Abstract: This brake, suitable for being connected to a brake cable (6), comprises a toothed sector (1) fitted with a dentation (2) which sector is intended to be fixed to the floor of the vehicle, a pawl (9) provided with locking teeth (13) interacting with the dentation (2) of the sector and a hollow manual gripping lever (5) equipped with an internal push-button rod (7), one end (7a) of which interacts with the pawl in order to keep it in the locking position of the brake due to the thrust of a return spring (14); the pawl (9), articulated about a pin (11), interacts with a member (17), which may be an additional tooth (17) forming part of an over-moulded covering (16) on the metal body (12) of the pawl, positioned between the teeth (13) of the locking mechanism and the pin (11), or an intermediate member which is not integrally connected to the pawl; this member is dimensioned in order to slide over the dentation (2) while the lever (5) is being operated, thereby keeping the teeth (13) of the locking mechanism away

Abstract: An upper steering assembly for a bicycle includes a head tube, a steerer tube passing through the head tube, a bearing assembly mounted on a top of the head tube and around the steerer tube, a rotational socket having a threaded inner periphery and including an upper clamping portion and a lower skirt portion which has an annular groove in an underside thereof for retaining the bearing assembly, and a compression socket mounted around the steerer tube and having a longitudinal slit and including an upper clamping section and a lower tubular section which is in threading connection with the inner periphery of the rotational socket allowing an adjustment of vertical position of the rotational socket relative to the compression socket.

Abstract: A knob accessory for a round thermostat of the type having a centrally located thermostat adjustment knob, has a relatively large diameter which allows easier adjustment of the thermostat setting for people who have difficulty in rotating an adjustment knob having detents to indicate thermostat settings. The knob accessory latches onto the standard adjustment knob with a detent mechanism which also allows removing the knob.

Abstract: Hydraulic pressure supplied to the frictional engaging element of an automotive transmission is corrected to a higher value in the event that the engine is started after a long standstill condition and the first speed ratio is selected, thereby reducing speed-shift shocks when the engine is started from a standstill condition and the first speed ratio is selected.

Abstract: An automatic transmission shift control system controls a line pressure for initiating a shift of an automatic transmission so that a duration between initiation of the shift and termination of a torque decline during the shift falls within a predetermined shift initiation time period. Also, a line pressure is controlled by the system for terminating a shift of the automatic transmission so that a duration between termination of a torque decline and termination of the shift falls within a predetermined shift termination time period. Both of the line pressures are used in a following shift control of the automatic transmission.

Abstract: There is disclosed a line pressure control for an automatic transmission of an automotive vehicle wherein the automatic transmission is drivingly coupled with the engine and transmits the engine torque by a hydraulically actuable coupling which is actuable by a pressurized hydraulic fluid which is as high as the line pressure. According to this control, a predetermined pattern of variation of the pressurized hydraulic fluid is changed to a second pattern upon detecting the occurrence of a change in an engine load beyond a predetermined degree, and the pressurized hydraulic fluid follows the second pattern temporarily, i.e., for a period of time.

Abstract: A multiple ratio automatic transmission having a hydrokinetic torque converter in an automotive vehicle driveline wherein the torque converter has a controllable bypass clutch and wherein provision is made for changing the clutch capacity during a ratio change to reduce undesirable torque fluctuations in the driveline, thus improving shift quality while maintaining optimum hydrodynamic torque converter efficiency.

Abstract: A Cu--Sn based sintered material, which has an improved corrosion-resistance, is provided by setting the Pb content at 1 to less than 10% and adding from 0.1 to 30% of a hard matter(s) selected from the groups (a), (b), (c) and (d). The hard matter is(a) Fe.sub.2 P, Fe.sub.3 P, FeB, Fe.sub.2 B and Mo.(b) Fe--Cr, Fe--Mn, Fe--Ni, Fe--Si, Fe--W, Fe--Mo, Fe--V, Fe--Ti, Fe--Nb, CuP, Cr, and W;(c) SiC, TiC, WC, B.sub.4 C, TiN, cubic BN, Si.sub.3 N.sub.4, SiO.sub.2, ZrO.sub.2, and Al.sub.2 O.sub.3 ;(d) Si--Mn, Cu--Si, and FeS.Most of said hard matter being dispersed in Cu particles, grain boundaries between Cu particles, and between the Cu and Pb particles.

Abstract: A punch die used to punch minute via holes in ceramic wafers used in integrated circuit construction is created by photoetching holes too small to be mechanically drilled into a pair of thin sheets that sandwich therebetween a thicker spacer slab having somewhat larger, mechanically drilled holes. A multiplicity of punch pins are then pressed into the three-layer sandwich and epoxied thereto to create an inexpensive a punch die which cooperates with a mechanically drilled die plate covered with a punch-pin receiving perforated skin, the holes in which being created in a similar photoetching process.

Abstract: A wrench assembly for retaining a pair of propane tanks in spaced relationship, while providing a convenient storage structure for a wrench required for maintenance of the propane tanks. The assembly includes a threaded rod positioned between the propane tanks, and a bracket securely retains the tanks in position when a wrench having a threaded opening is screwed onto the threaded rod. The assembly overcomes the problems associated with the misuse of tools when the appropriate wrench is unavailable.

Abstract: A screw gun has a flat planar work face adapted to be placed flat against the work. An activator extending from the work face advances a screw along a guideway from a magazine to a driving position. A power unit is independently activated to drive the screw into the work. The screws in the magazine and guideway are mounted upon a flexible strip which has a body at the screw. The body has knobs extending on either side which fit within a groove of the guideway. The strip with the screws therein form a "Z" fold within the magazine and are guided from the magazine by a feed section which has one concave side and one convex side.

Abstract: A clamping device is furnished, in particular for peeling machines for metallic bars (21) and tubes. The clamping device clamps the workpieces in a defined way at a preselected position (99) and independent of the diameter of the workpieces. The clamping device includes means for synchronization (64-69) of the motion of the clamping rollers (31, 32). The clamping position of the bar to be clamped can be varied by an adjustment device. The means for synchronization (64-69) of the clamping motion transfer a preselectable part of the clamping force, which is furnished such that the means for synchronization are held free from play via preclamping, during in all clamping phases. This eliminates vibrations of the bar (21) together with the clamping means (31, 62; 32, 63) or any undesired shifting of the clamping position.

Abstract: A device for preventing deflection of an elongated workpiece rotating about its longitudinal axis is provided with a contact ring (9) that is rotatably mounted about a support shaft (12) perpendicular to the axis of rotation of the contact ring (9). The angle of inclination of the rotational axis of the contact ring (9) is variable relative to the rotational axis of the elongated workpiece (M) inserted throught the ring (9), by rotating the housing (6) about the support shaft (12). The periphery of the workpiece (M) is supported by the inner periphery of the contact ring (9) at two points, i.e., at axial ends of the contact ring. Thus, elongated workpieces of different diameters can be supported by varying the inclination angle of the axis of the contact ring (9) relative to the workpiece (M).

Abstract: The common base of the comb-shaped clearing device is made of a shaft. Screws are provided for blocking pairs of parallel arms on a shaft in variable positions as a function of a longitudinal position of a series of points on the cutting cylinder (2). The two arms of each pair, which are symmetrical with respect to a symmetry vertical plane, have inner faces turned toward one another and formed in such a manner as to define therebetween an interval having a width which increases from front to rear.

Abstract: Motor-driven cutting apparatus for cutting sheet media are disclosed, particularly for use with plotter and printer apparatus. The cutting apparatus of one embodiment comprises two cutting members in which at least one of the cutting members is moved both angularly and linearly, e.g., pivoted and reciprocated, relative to the other to cut media placed between the two cutting members. In another embodiment, the cutting members are both simultaneously pivoted relative to each other. Rotary motion of a driving member, e.g. a motor shaft or a shaft coupled to a motor shaft, is converted to combined angular and straight line motion or only angular motion at one or both cutting members by a simplified coupling arrangement which may comprise simple sleeves with eccentric structure and pivot-type joints. Cutting apparatus according to the invention may be used for X-axis and/or Y-axis cutting.

Abstract: A layer piercing paper punch is disclosed, in which a plurality of cutting hole plates is provided on a base between the location of a cutting hole and an upper cutter bar for perforation. Each of the cutting hole plates has a sharp-pointed portion on the front end and a cutting hole near the middle part. The cutting hole plates lying parallel to the surface of the base and in an overlapping position are always maintained by a position-fixing member with cutting holes in alignment with the upper cutter bar and the lower cutting hole on the base thereby enabling the cutting hole plates to perform up and down movement without any movement on the sides during the perforation of a paper file.

Abstract: A cutting apparatus having a holding member for holding a sheet; a plurality of cutter member for cutting the sheet held by the holding member; and a shifting member engaged by the plurality of cutting member, for shifting the plurality of cutting member in parallel with each other. The shifting member is so designed that it can shift the cutting means without aligning them perpendicular to a cutting direction during the cutting of the sheet.

Abstract: A scroll saw having an unlimited throat depth includes upper and lower spaced apart blade arms independently supported and interconnected only by a blade at their forward ends. A spring biases a forward end of the upper blade arm upwardly keeping the blade taut throughout its reciprocation by a motor connected through an eccentric to the lower blade arm. The lower saw unit may be movably positioned on a platform or cart while the upper saw unit is slidably supported on a wall mounted support arm.

Abstract: The invention relates to a mouthpiece for a clarinet and saxophone to be used with a reed. The mouthpiece has a tip and a face having two spaced sides extending towards each other from the tip. The face has an opening adjacent to the tip between the sides and a longitudinal bore communicating with the opening. The face is arcuately curved downwardly toward the tip thereby forming a face gap distance between the face and the reed. A wing member extends from each of the sides away from the opening so that the mouthpiece flares outwardly at the face to direct air into the opening. The wing members extend substantially to the tip of the mouthpiece. In addition, a spiral profile may be formed on a cylindrical surface defining the longitudinal bore. The wing members fill triangular spaced gaps between the lips to direct air into the mouthpiece opening. The mouthpiece improves the tonal qualities of the instrument and requires less effort than with conventional mouthpieces.

Abstract: An acoustic data output device comprises an addressable memory for storing acoustic data. A plurality of clock signals are coupled to count separate address counters of a number corresponding to the number of clock signals. A signal selector is responsive to the clock signals for providing an address counter selection signal, whereby at any given time the selection signal corresponds to a separate one of the address counters. An addressing device is responsive to the address counter selection signal for selectively addressing the addressable memory with the count of the corresponding address counter. A separate data latch corresponds to each address counter and the data latches are coupled to receive the output of said addressable memory. The outputs of the data latches are synchronized with the clock signal corresponding thereto.

Abstract: A double serve jacketed cable that has a plurality of insulated conductors. The double serve has an outer serve wound around an inner serve and the inner and outer serve are interconnected to form a longitudinally extending french braid.

Abstract: The invention that relates to a pyrotechnic actuator in which the movement of the piston is damped. The actuator includes a body, a piston, a pyrotechnic material combustion chamber and a counter pressure chamber. The actuator also includes at least one intermediate compression chamber located between the combustion chamber and the end of the piston, with the intermediate compression chamber connected to the combustion chamber by a hole.

Abstract: A projectile propelling system includes a gun barrel filled with a gaseous propulsive mixture, a projectile having a front cone wall and a rear cone wall, and a driver for initially propelling the projectile in the gun barrel to an initial velocity above the detonation velocity of the gaseous propulsive mixture to produce a shock wave at the front cone wall followed by a detonation wave resulting from the reflection of the shock wave inside the barrel, which detonation wave is applied to the rear cone wall to increase the velocity of the projectile. The front cone wall and rear cone wall of the projectile are such as to create a "mach stem" in the form of a disc normal to the longitudinal axis of the projectile, of sufficiently high pressure and temperature to ensure ignition of the gaseous propulsive mixture.

Abstract: A shock compression jet gun with associated explosive charge assembly. The shock compression jet gun features a breech for storage of the explosive charge assembly, a projectile tube, and an expansion nozzle disposed between the breech and projectile tube. The expansion nozzle includes converging and diverging passageways. The explosive charge assembly includes a shock absorbing outer casing, a detonator, a shaped charged positioned within the casing and a compressible medium retained within a recess formed in the shaped charge. The compressible medium is maintained within the recess by way of a membrane sealing one end of the casing. In a preferred embodiment the compressible medium is a liquid such as ammonia, water or a mixture of liquid ammonia and water which dissociate(s) into a mixture of light gases upon detonation of the shaped charge.

Abstract: Disclosed is a flash suppressor for guns which controlledly vents ignited gh pressure gas exiting a gun muzzle. The gas is vented essentially radially outward through coils or rings of the suppressor in a 360 flow degree pattern away from a longitudinal axis of the suppressor.

Abstract: The present invention generally relates to a military cannon as typically unted within the turret of a military armored vehicle such as an armored tank. My invention teaches method and apparatus for the catching and entrapping the stub case typically ejected from the breech of a military cannon after firing of an ammunition round. Subsequent to entrapment of the ejected stub case, the stub case catcher is raised to a preferred elevated angle simultaneously storing potential energy within a torsion bar which upon later release, ejects the entrapped stub case from the catcher and from the vehicle. By use of my invention and an automatic ammunition loader the crew requirements of such fighting vehicles may be reduced by eliminating the need for a human loader.

Abstract: An improved fluid controller (15) is provided having both rotary valving (47) actuated by the steering wheel (17), and axial valving (49) controlled by an electro-hydraulic valve (113) in response to a correction signal (31). In one embodiment, both the rotary valving and the axial valving are achieved by a primary valve member (63) and a follow-up valve member (65), and both the rotary and axial valving can be actuated simultaneously. Also disclosed is a logic control system for closed-loop control of the electro-hydraulic valve, whereby performance problems such as self-steering, wander, drift, and others are substantially eliminated.

Abstract: Portable lift structure for moving a support platform between a comparatively dry position above the surrounding deck of a liquid spa tank to a wetting position in the spa tank including two longitudinally extending structural members pivotally connected at corresponding top ends thereof to be moved between a portable and operating positions, one structural member serving as a mast to be removably mounted in the spa tank deck and the other as a platform mount, to be pivoted from above the surrounding spa tank deck to a position above the spa tank and lowered by a hydraulic cylinder and piston to a wetting position.

Abstract: A rodless piston and cylinder assembly having an improved cable connection between the ends of the piston and the working unit in the form of a band of plastic and coated stainless steel strip. The exterior surface of the band is curvilinear and cooperates with the curvilinear slot shape of piston and cylinder plastic sealing grommets. Braking of the working unit is accomplished by pistons in the carriage acting against the carriage slide.

Abstract: An automatic beverage brewing apparatus which includes a brew chamber having an inlet and an outlet and a water distribution system associated with the brew chamber for introducing brew water and flush water therein. A filter assembly is disposed in the brew chamber. An opening is formed through the filter assembly for communicating with the outlet of the brew chamber. A flush water dispenser is associated with the water distribution system and is positioned centrally in the brew chamber for rinsing inside surfaces of the brew chamber. A piston assembly disposed in the brew chamber including a spool and a device for controllably moving the spool in axial and rotary directions. The spool includes a head, a base, and a necked portion extending between the head and the base. The spool is disposed in the brew chamber with the head controllably movable in the inlet and the base controllably movable in the outlet for controllably opening and plugging the inlet and outlet.

Abstract: A food press having an elongated body including a forward end to which a perforated cap or the like is removably attached and through which pressed foodstuffs pass, and a chamber means within the body adjacent the forward end of the press for receiving and pressing foodstuffs. A reciprocating piston is slidably fitted within the chamber means for moving and pressing foodstuffs, wherein the piston is adapted to be positioned rearwardly of the foodstuffs in the chamber means in its retracted position and against said forward end for pressing the foodstuffs through the perforations in the cap in its forward position. The press also has a rotatable handle pivotally connected to the elongated body rearwardly of the piston, and a linking member connected to the handle and to the piston. When the handle is rotated in one direction the piston is moved to it's retracted position to allow the chamber means to received foodstuffs.

Abstract: A method for checking the driving and control system of a hydraulic punch press is provided which comprises the steps of delivering a stop order signal to the driving device, sensing the position of the sliding punch member along its stroke and comparing the time or the distance required by the punch member to come practically to a stop, with preset reference values, and producing a fault signal when the time or distance exceeds the preset reference values.

Abstract: In a system for monitoring trash compactors, each monitoring unit associated with a trash compactor comprises a transducer for sensing hydraulic pressure, for generating an analog signal from the sensed pressure, and for converting the analog signal to a frequency signal, and a microprocessor. The microprocessor compares pressure signal values generated from the frequency signal over timed intervals to a specified value indicative of a compaction. The microprocessor also compares the maximum pressure signal value generated therefrom, under certain conditions, to a threshold value indicative of the trash compactor having a substantially empty compactor and to a threshold value indicative of the trash compactor having a substantially full container. Whenever a specified, plural number of substantially full compactions have been determined, a modem sends a status signal to a computer at a remote location or a facsimile message to a facsimile machine at a remote location.

Abstract: A waste container crusher particularly adapted for crushing automotive type oil filters or other structurally rigid disposables containing hazardous waste has a housing with an open bottom which is closed off by an anvil plate. The anvil plate slideably receives three equiangularly spaced posts which are secured to a roof plate at the top of the housing, above the anvil plate. Nuts on the posts support the anvil plate below the roof plate, so that the anvil plate is suspended from the roof plate by the posts. The roof plate is secured to a hydraulic cylinder which produces a 10 ton driving force for a platen guided by the posts to crush a container placed on the anvil plate below the platen. In the anvil plate, four blind bores in a rectangular pattern in the top surface intersect a central blind bore extending from the bottom surface, and a smaller central through-bore provides communication between the lower central blind bore and the top of the anvil plate.

Abstract: A continuously operating double band press for the production of material webs, a shape compensating plate and a discontinuously operating single or multiple-platen press for the production of materials in portions is disclosed. Shape compensating plates are arranged in the press frame of the double band press or at the pressing plates of the platen press. The shape compensating plate comprises two plates of metal which are parallel arranged. An elastic bellows serving as a lateral seal is fastened at its edge to extend annularly. The chamber formed by the plates and the elastic bellows is filled with a fluid medium.

Abstract: An adjustable shelving system has a plurality of generally cylindrical posts each having a plurality of vertically-spaced annular grooves therein and a plurality of tapered sleeves fitted on the posts. The tapered sleeves include an annular rib engageable with the annular grooves on the posts and an exterior mating surface. At least one plastic shelf has a plurality of tapered step holes for receiving one of the tapered sleeves fitted onto the post. The step holes are defined by an interior mating surface, and one of the exterior and interior mating surfaces is formed with a series of spaced cylindrical ledges to increase the friction between the sleeves and the step holes.

Abstract: A relief printing technique wherein the material to be printed on is placed between an inked relief and a supporting assembly comprising a dressing web and a second relief reproducing the pattern of the printing relief.

Abstract: A stencil plate having a heat sensitive stencil paper sheet formed of a thermoplastic film and a porous support member, a non-woven fabric impregnated with ink, a frame member disposed so as to surround the non-woven fabric, an ink-impermeable film, and a peelable surface film having a high temperature heat resisting property that is superior to the thermoplastic film. The surface film may be a peelable member or there may be a peelable member adhered to the surface film so as to peel both, the peelable member having a projecting portion. When the projecting portion which projects from a frame member, is gripped and pulled, the surface film on a stenciled face, is gradually peeled away and removed from the stenciled face so that a heat sensitive stencil paper sheet in the stenciled condition is exposed.