Abstract: A sewer pipe smoke blocking device for inserting into a sewer pipe to prevent smoke introduced into the pipe from leaking therepast, having a hollow cylindrical housing adapted for receipt into the sewer pipe. An inflatable bladder surrounds the outer circumference of the housing and a gate assembly is mounted at one end of the housing to selectively close the hollow of the housing to just below the level of sewer water flowing therethrough.

Abstract: A vibration-type gyro apparatus is disclosed, which includes a vibration mass portion, a piezo-electric element for detecting the displacement of the apparatus and a preamplifier having an input resistance R and supplied with the output from the piezo-electric element, wherein the input resistance R is selected to have a value substantially expressed as R.apprxeq.1/C.omega. (where C is an electrostatic capacity of the piezo-electric element and .omega. is a vibration angular velocity of the mass portion) so that the gyro apparatus will be substantially free of variations due to temperature changes.

Abstract: The present invention provides a method of measuring, by utilizing ultrasound, the factor of stress concentration at a stress-concentrated portion of a member, comprising the steps of emitting ultrasound for incidence upon the stress-concentrated portion of the member in stressed state, increasing the stress in said stressed state, comparing the acoustic pressure of the reflected wave from said stress-concentrated portion between before and after the stress is changed, for thereby measuring the factor of stress concentration and by which the factor of stress concentration of a member composing a machine or the like in a static or dynamic state can be measured easily, real-time, quantitatively, nondestructively and highly accurately.

Abstract: The present invention relates to a method and apparatus for providing a magnified image of a zone of a specimen. The method comprises the steps of generating acoustic waves having different frequencies and focussing on the zone the acoustic waves wherein different points on the zone receive and reflect acoustic waves having different frequencies, the frequency of a wave received by a given point being function of the position of the point in the zone. The method further comprises the steps of analyzing the reflected waves to generate signals representative of the physical structure of the zone at the points and establishing a correspondance between the signals and the positions of the points in the zone from the frequencies of the reflected waves and, forming from the signals a magnified representation on a display of the physical structure of the zone to construct an image of the zone.

Abstract: Ultrasonic sensor and echograph with static sectorial scanning, especially for a wide angle picture, wherein according to a possible embodiment, the sensor comprises several groups of transducer elements forming between one another obtuse angles in such a way as to define overall a convex outline so that the delays or lags necessary to obtain a complete scanning be lower than with a conventional linear strip and thus easier to contol, the sensor being intended to be applied to medical echography.

Abstract: A continuously variable traction drive transmission of the class including three working bodies, two of which are concentric with a first transmission axis, the other of which is concentric with a second axis intersecting and inclined with respect to the first axis, and wherein the points of rolling friction contact lie in diagonal quadrants defined by the first axis and a line perpendicular to the first axis at the intersection thereof with the second axis. The body concentric with the second axis includes two oppositely convergent cone-like rolling surfaces of revolution about the second axis which are held in rolling friction engagement with annular plate-like members forming one of the two bodies concentric with the first axis. The other of the two bodies concentric with the first axis carries the body on the second axis in nutation and continuously variable speed ratios are achieved by adjusting the angle of first and second axis through 90.degree.

Abstract: A vortex shedding flowmeter comprises a flow passage through which a fluid flows, a bluff body arranged in the flow passage for generating Karman vortex of the fluid and provided with a pair of holes which open to respective side surfaces of the bluff body and extend toward and penetrate through one end of the bluff body for introducing a pressure change caused by the Karman vortex, a body which is an independent member from the bluff body, a pair of detecting parts provided in the body and comprising a pair of recesses provided on the body, a pair of fixed electrodes and a pair of movable electrodes provided in the recesses with a predetermined distance therebetween, a communicating hole provided in the body for communicating a pair of spaces formed between the fixed and movable electrodes, and a sealed fluid sealed in the spaces and the communicating hole, where the movable electrodes are displaced responsive to the pressure change in the fluid introduced from the bluff body and received by surfaces of the

Abstract: A two-axis, monolithic, flexure hinge suspension system for an accelerometer or gyroscope has first, second and third cylindrical portions which are slightly axially spaced from each other along a common axis and are connected by pairs of flexible hinges therebetween. Each pair of flexible hinges is mutually perpendicular to another pair of flexible hinges and is also perpendicular to the common axis. Each flexural hinge comprises a pair of flexure leaves extending between adjacent cylindrical portions and joined together at the crossing portions thereof. One of the leaves in the flexure extends downwardly from an arcuate wall of one of the cylindrical portions to an arcuate wall of another cylindrical portion at about a 55.degree. angle to a vertically oriented common axis. The other leaf in the flexure extends upwardly from an arcuate wall portion in the one cylindrical portion to an arcuate wall in the other cylindrical portion at about a 55.degree. angle to the vertically oriented common axis.

Abstract: In a rotary traction roller transmission having oppositely disposed toric discs mounted on its input and output shafts, and motion transmitting rollers frictionally engaged between the toric discs for transmitting motion from one toric element to the other, the rollers are supported on pivot shafts which are interconnected by at least one cable looped around flanges of the pivot shafts and having tubular sections mounted thereon and fittingly received in corresponding cavities formed in the pivot shaft flanges for operative engagement therewith.

Abstract: A motion-transmitting remote assembly (10) of the type for transmitting motion in a curved path including a tube member (14) and a rod member (18) movably supported by the tube member (14) and extending therefrom to provide a variable extending length of the rod member (18) between the tube member (14) and one end (68) of the rod member (18), the rod member (18) defining a line of force. An integral terminal member (20) operatively interconnects the extending length of the rod member (18) and a control member (22). The assembly is characterized by the terminal member (22) including an opening (38) therethrough defining an axis perpendicular to the line of force and having a containing portion for containing a body portion (32) of the control member (22) therein and a retaining portion for retaining a ball pin (36) extending from the body portion (32) of the control member (22) therein.

Abstract: A control cable conduit length adjustment device comprising an outer detent member connected to a conduit, an inner adjuster member extending into the detent member, the adjuster member having opposed sets of ratcheting teeth and the detent member having opposed detent pawls with teeth engaging the teeth on the adjuster member. The teeth on the adjuster member are offset longitudinally so that a smaller increment of adjustment is provided. A control cable extends through the conduit and the detent and adjuster members. Resetting of the device is achieved by rotating the detent member relative to the adjuster member to disengage the teeth on the pawls and adjuster member so that the members can be moved longitudinally relative to one another.

Abstract: A rod seal device for a Stirling engine includes a piston rod connecting operating piston and a guide piston latter being served as a power take-off device, various seal members disposed between the two pistons and surrounding the outer peripheral portion of the rod. The seal device further includes a plurality of chambers disposed around the outer periphery of the rod between a working chamber of the engine and a working chamber of the power take-off for discharging any gas leaked therefrom or preventing any undesired mixture of the two different working gases.

Abstract: A single speed planetary transmission located inside the wheel hub of a pedal-propelled vehicle such as a bicycle. The transmission is chainless and includes a pair of fixed ring gears, planetary gear carriers mounted for rotation with the drive shaft, planetary gears carried by the gear carriers and meshed with the fixed ring gears, and a sun gear meshed with the planetary gears and coupled to the hub by a conventional free-wheel ratchet mechanism. The transmission provides an optimum gear ratio in a compact, chainless, low maintenance assembly.

Abstract: A vehicle automatic transmission having a torque converter and a multiple-stage gear mechanism. When the vehicle is stopped and the shift lever is in the D-range, the gear mechanism is shifted to the highest gear stage if the vehicle brake is engaged and the engine is idling, so that transmission of the engine idling vibrations to the vehicle body can be prevented by the transmission.

Abstract: A plurality of blanks for drill bits are produced from a disc-shaped composite abrasive compact by first producing a plurality of sticks of polygonal shape end-on and thereafter longitudinally rounding each stick. The rounded drill blank is then fluted to produce a small diameter twist drill bit.

Abstract: A wrench adjustable for use with various size workpieces is disclosed. The wrench has a rearward gripping portion and a forward portion being integral therewith. The forward portion has a slot formed laterally therethrough and further has an aperture including a gripping portion formed therethrough. A wrench plate is rotatably received in the slot. This wrench plate includes a periphery having a plurality of notches formed therein. Each of said notches may be selectively positioned in communication with the aperture, whereby the workpiece may be disposed between the gripping portion of the aperture and a selective notch of the wrench plate where it is gripped for the tightening or removal thereof. If desired, a detent member is also provided for maintaining the wrench plate in a stationary position during the use thereof.

Abstract: A body is provided including a first end defining a vertically extending outwardly opening notch therein and at least one door is pivotally mounted from a corresponding side of the body end for swinging between a closed position across the body end and an open position extending outwardly from the body end. A motor driven drum is jouralled within the body on the side of the notch away from the direction in which the notch opens and an endless flexible drive members includes a positive bright passing about the drum. The free swinging end of the door has a roller journalled therefrom and the side of the first end of the body across which the door extends has a guide roller journalled therefrom, the rollers generally paralleling the drum.

Abstract: A duplicating system, especially for use with a multipurpose woodworking machine capable of performing lathe turning operations. The system includes a support table, a carriage adapted to be slidably mounted on the machine, and a locking rack and pinion for raising and lowering the table relative to the carriage. A tool support is positioned on the table and includes a base having a low friction pad for engaging the table top, a follower for contacting a pattern, and a multi-edge cutting tool rotatably mounted on a tool rod for engaging a workpiece. An insert guide is mounted on the tool rod to hold the cutting tool in position. The base has a set screw which engages a circumferential groove in the shank of the tool rod so that the cutting tool can be quickly and accurately positioned relative to the follower.

Abstract: To change reels (11, 12) of packaging material in or on packaging machines, a front region of a connecting sheet (13) is held ready in an exact relative position in a common conveyor track (18). When the end of a run-off sheet (10) is reached, an end piece of the latter is severed, so that the run-off end and the front end of the sheets of material (10, 13) can be conveyed (further) in an exact position to one another.

Abstract: Slicing device for breads, having a plurality of endless slicer bands which extend substantially parallel to each other and which are passed over drums. At least one of the drums is automatically adjustable and acts as a tensioning means for maintianing a substantially constant tension in the slicer bands. The adjustable drum is supported by cylinder-plunger assemblies one at each side of said drum. The cylinder-plunger assemblies are operable independently of each other. The supports of both drums are connected to each other by a bracket which is mounted to a stationary frame on one side of the respective drum. Both brackets extend in between both parts of the slicer bands.

Abstract: A cutting machine for solid bodies such as rubber tires according to the invention comprises a blade base 14 moved vertically by pressing cylinders 1. Downwardly directed cutting blades 18 are mounted on the underside of the blade base 14. These blades 18 can retractably project through slits 15a formed in a presser plate 15 positioned below the blade base 18. Rubber tires T.sub.1 placed on a receiver 27 are cut by the blades 18 with the presser plate 15 compressively retaining the tires T.sub.1. The resultant cut pieces are discharged by horizontally moving an accommodating box 22 through discharge cylinders 23. The receiver 27 is slightly rotated after a predetermined number of cutting operations.

Abstract: A machine for cutting coarse sod into relatively small plugs for ready packaging and subsequent transplanting, comprising an endless conveyor belt upon which comparatively large rectangular sections of sod can be deposited, so that the sections of sod can be moved intermittently toward a sod cutting device. The sod cutting device preferably is of the single pass cutter type, utilizing a plurality of elongate, closely grouped blades designed to periodically move in unison downwardly into contact with sod to be cut, with such downward cutting movements being immediately followed by an upward movement, thus to permit an advance of the section of sod without interference. I coordinate the movements of the sod cutting device with the belt advance, such that forward movement of a section of sod is in each instance prevented until the cutting blades are clear of the section of sod being cut.

Abstract: A tube cut-off apparatus includes a horizontally moving scarfing blade which opens up the top of a tube permitting a vertical moving cut-off blade to move through the opening and finish cutting the tube. An upper die plate supports the vertical cut-off blade and a locking cam arrangement includes spaced vertically extending cams which provide for longitudinal movement of clamping slides in turn opening and closing jaws of die blocks which support the tube to be cut. A horizontally movable slide member carries a scarfing blade which cuts horizontally the upper tube portion and moves out of the way to permit the vertical blade to shear through the tube. The scarfing and clamping arrangement is actuated entirely by the mechanism on one side of the apparatus with the cams performing the clamping function as well as the actuation of the slide member.

Abstract: A steel rule die assembly for cutting a fixed pattern in each of a plurality of stacked compressible material layers according to the shape of the steel rule including a plate member defining a support surface, a steel rule die adapted to be positioned on the support surface, and a continuous rigid frame adapted to be removably positioned on the support surface in surrounding relation to the steel rule die and pivotally secured to the plate member along one side edge of the frame so as to allow the frame to be pivoted upwardly about that side edge to allow removable and replacement of the steel rule die.

Abstract: Method and apparatus for supporting a power tool, e.g., a power mitre box, are disclosed. In a preferred embodiment (10), an electrically-powered motor unit (16) is pivotably supported by a table (14) which in turn is rotatably supported by a base (12). The base (12) preferably includes four legs (20) and an equal number of studs (26). The legs (20) and studs (26) combine to form front slot (27a) and rear slot (27b) in the base (12) suitable for receiving a pair of horizontal support members, e.g., a pair of two-by-fours (34). The base (12) also preferably includes a pair of extensions (24) which are sized to make the top surface of the base (12) and table (14) flush with a plurality of cross pieces (36) spanning the horizontal support members (34). The flush surface created by the cross pieces (36), base (12) and table (14) is suitable for supporting a long workpiece so as to minimize blade binding and splintering.

Abstract: Method and apparatus for providing motive power to a tool are disclosed. A preferred power mitre box (10) including a base (12), a table (14) and electrically-powered motor unit (18) suitable for driving a saw blade (20) is described. The motor unit (18) includes an armature (40) and an arbor shaft (22) which are respectively supported by armature bearings 42 and arbor bearings 44 and are preferably substantially parallel and of substantially the same length. Also, the distances between the armature bearings (42) and the arbor bearings (44) are preferably substantially equal. The relatively large distance between the arbor bearings (44) causes the blade (20) to have very little play or deflection due to looseness in the bearings (44). In preferred embodiments, a speed reducer assembly (34) is located on the opposite end of the arbor shaft (22) in relation to the blade (20). Also, the speed reducer assembly is preferably of the cog belt type.

Abstract: A conveyor table is provided on a floor mounted support frame and a pair of tool guides are disposed horizontally and laterally above and below the conveyor table. Several readily removable tool and cutter assemblies, each having a freely rotatable, circular blade with teeth, are slidably mounted on the tool guides. Setscrews are provided on the tool and cutter assemblies to secure them on the tool guides in relatively opposing, vertically aligned pairs. Electrically powered drive units are disposed upstream and downstream of the tool and cutter assemblies to engage a sheet of wallboard, hold it against the conveyor table and move it between the opposing pairs of tool and cutter assemblies.

Abstract: A keyboard type electronic musical instrument in which note data and duration data are read out from a memory in accordance with the progress of a musical piece, and a control circuit (CPU) turns on display devices provided for individual keys on a keyboard in response to note data, thus training a player to operate keys specified by the display devices. The control circuit counts each instance of noncoincidence between a key represented by the note data and an operated key on the keyboard, and obtains deviations between a key operation timing defined by duration data and the timing of key operation on the keyboard. After the end of a performance, the control circuit informs the player of the number of the mis-key operations or the accumulation of key operation timing deviations by means of the display devices. A number of display devices corresponding to the accuracy of the performance are lit.

Abstract: In a synchronized sound recording and reproducing system including a tape recorder to playback a tape carrying time code information indicative of particular longitudinal locations of the tape, a sequencer having sound information programmed therein and a manually operated tapping key to be tapped by an operator to produce heat signals, a synchronizing signal generator for providing synchronism between the base sounds reproduced from the tape and the additional sounds reproduced from the sound information memorized in the sequencer, comprising beat interval detecting means operative to detect, on the basis of the time code information from the tape, the time intervals between the successive beat signals produced by the beat signal generating means, and rhythm information generating means for generating rhythm information based on the pattern of the time intervals.

Abstract: A method and apparatus for establishing the volume level of a tone generator associated with a keyboard in which the tone generator will output a click tone when each key on the keyboard is actuated. In establishing the volume level of a click tone, the keyboard is put into a volume setting mode by the actuation of two key members of the keyboard. The subsequent actuation of each key member will produce a different volume level of the click tone. The actuating of a key member results in the storing of a count in a storage member. The storage member is then downcounted until it reaches zero. Upon reaching the count of zero, processing means generates a pulse train in which the pulse width is determined by the time it takes for the storage member to count down to zero.

Abstract: A drum skin tightener includes a generally triangular bracket for mounting on the body of a drum near one end thereof, flanges on the body defining sockets for releasably and pivotally receiving lugs on the top end of a lever. A bolt extending through a slot in the conventional skin retaining rim engages a pin extending transversely of the lever in the bracket, so that rotation of the lever in the bracket either secures the drum skin on the body or permits removal thereof from the body. Such an arrangement permits replacement of a drum skin without changing the tension on the retaining rim by the bolts.

Abstract: A method and apparatus for making an in situ disposable propellant canister for utilization in controlled pulse fracturing. Said canister is composed of a porous light fabric material in combination with a gel solution. The gel creates a formable mass after solidification. Said mass can be made of a gel thickness sufficient to support and contain a propellant. Upon ignition of said propellant, the gelled canister is destroyed thereby alleviating a clean up operation.

Abstract: An aimer for a guided missile that is easily strapped on the side of a missile to provide an automatic device for aiming the missile at a target.

Abstract: An electromagnetic launcher assembly 10 includes a magnetohydrodynamic power generator 12 for generating electrical energy. The energy is stored in an inductor 26 which is provided with current directing means 30 for selectively routing an electrical charge to activate a rail gun assembly 28 which initiates the firing of a projectile 32 out of the rail gun assembly.

Abstract: The control valve for the re-setting of the props at a predetermined minimum setting pressure is connected at respective junctions to a high pressure conduit, to the pressure chambers of the props, to the prop-setting conduit and to the return-flow conduit leading to the annular chambers of the props. The spring-loaded closure body is guided displaceably in the valve housing by journals on each of the two sides of the valve cone. The ends of the journals are formed as actuation faces. The valve cone seals off the high pressure junction and the junctions leading to the pressure chambers of the prop and opens only when a predetermined minimum setting pressure at the junction is exceeded. For closure, the control valve is loaded through the junction on the actuation area of the journal with the pressure fluid conducted to the annular chambers of the props.

Abstract: A load responsive system including individual positive and negative load compensators, for control of positive or negative load and an external logic system for determination of whether the controlled load pressure is positive or negative. The deactivating valve deactivates the positive load compensator, when the negative load pressure exceeds a certain minimum predetermined level, preventing flow of fluid from the system pump to the system actuator controlling a negative load at a pressure higher than a certain predetermined level, and therefore preventing development of excessive pressure in the actuator, while also deactivating the negative load compensator below a certain minimum predetermined negative load pressure level and while the positive load is being controlled by the positive load compensator.

Abstract: In a first embodiment, the assembly includes a shallow, substantially figure eight-shaped chamber of intersecting bores with a pair of rotors journalled therein. The chamber has upper and lower, parallel walls which are joined together by means of a peripheral, chamber-enclosing wall. The lower wall has an aperture therein for opening onto a cylinder of an air compressor, or the like, and the rotors sealingly interface the parallel and peripheral walls. By rotating the rotors toward or away from the aperture, a substantial volume of the chamber is closed off from, or opened to, the aperture. Thus, by mounting the Assembly onto a cylinder, with the aperture opening thereinto, the Assembly can be used to alter the effective volume of the cylinder without significantly adding dimension to the cylinder length or diameter.

Abstract: A rodless cylinder having an elongated cylinder and a fluid actuated piston longitudinally reciprocally mounted in the cylinder and an actuator mechanically connected to the piston. A first cable or a slot seal extends from one end of the actuator and to one end of the cylinder while a second cable or seal extends from the other end of the actuator and to the other end of the cylinder. An elongated flexible strip has one end attached to the actuator and its other end mounted to a take up reel so that the strip overlies and protects the cable or seal against sparks, caustic chemicals, and the like.

Abstract: A slide type vacuum pump has a cylinder bore with a cylindrical piston reciprocatingly slidably fitted therein and defining a vacuum pumping chamber. A seal element is housed in an annular groove around the piston defined by a radially extending annular surface and an axially extending cylindrical surface. The seal element includes an inwardly radially extending annular portion axially abutted against the annular groove defining surface and an axially extending cylindrical portion slidingly sealing against the cylinder bore. A first spring member has an inwardly radially extending annular portion axially abuttingly holding the annular seal element portion against the annular groove defining surface, and several axially extending resilient finger portions each angled outwards somewhat and springingly pressing the cylindrical seal element portion radially outwards against the cylinder bore to effect sealing therebetween.

Abstract: A piston for internal-combustion engines, reinforced at least at either the shoulder of the skirt or the piston boss thereof by a composite reinforcement consisting of a layer of inorganic long filaments and a layer or layers of inorganic staple short fibers or whiskers. The inorganic filaments are one or a combination of any of carbon, graphite, alumina, silicon carbide and glass, while the inorganic staple fiber or whiskers are silicon nitride whiskers, mineral fibers, potassium titanate whiskers, carbon fibers or graphite fibers, or a combination of those whiskers and/or fibers.

Abstract: A clean room having an air-conditioner unit built in the shell of an airtight main room in such a manner as to form part of the internal wall of the main room. This air-conditioner unit is provided with an external casing of a small thickness and this external casing is provided with an air inlet and an air outlet which is fitted with a high-performance filter. The casing has an air blower disposed therein. The airtight main room is mainly formed of a plurality of gate-shaped frames disposed in parallel as regularly spaced on a floor surface. The air-conditioner unit and a control unit are disposed in the spaces intervening between the adjacent vertical members of the gate-shaped frames. The internal wall of the main room is formed of wall panels and the front panel of the casing of the air-conditioner unit.

Abstract: Described is a coffee percolator of the type having a scalding chamber and a coffee filter, a wall of said coffee filter substantially closing said scalding chamber at its lower portion. The wall extends from an upper peripheral rim in a conical configuration with an angle of about 8.degree. to 35.degree. to the horizontal towards a substantially centrally located outlet and comprises a support sieve and a sheet of stainless steel disposed on the upper side of the support sieve facing towards the scalding chamber. The sheet has a thickness of about 20 to 80 .mu.m and is provided with a pattern of etched micro-perforations having a diameter of about 30 to 100 .mu.m at the surface facing towards the scalding chamber. The support sieve has a thickness of about 0.5 to 3 mm and is formed with a pattern of holes having a diameter of about 1 to 5 mm.

Abstract: Two embodiments of automatic drip coffee makers particularly adapted to be mounted other than on a counter top. In each embodiment, the coffee maker brews coffee into an associated container that is supported by other than its base. The container is preferably of the thermally insulated type and in one embodiment it is supported by means of a bayonet connection to the exterior of its neck and in the other embodiment it is supported by a screw threaded connection between the filter compartment of the coffee maker and the internally threaded neck of the container.

Abstract: Apparatus for making an infusion, e.g. tea or coffee, and having a piston and cylinder for blowing air through the infusion and then drawing it through a filter base, the cylinder having a flange which is slidably received between arms of a support, the flange having in its opposed side faces grooves which receive inward facing flanges on the arms and there being a disconnectable connection between the piston connecting rod and its operating crank so that, when said connection is disconnected, the cylinder can be mounted on and removed from the apparatus.

Abstract: The domestic appliance using a hydrophilic powder comprises a chamber (4) for dispensing the powder and means for transferring the powder to a container (20).Said means comprise a turbine (7) to form a current of air sufficient to propel all the powder from the dispensing chamber (4) to the container (20).Use more particularly for constructing a domestic appliance adapted to prepare a drink from a soluble powder such as coffee and a liquid.

Abstract: In an apparatus for making a rolled wafer cone from a baked flat wafer blank made from a sugar-containing wafer dough, the baked wafer blank is rolled to form a wafer cone in a winding mold while the wafer blank is still in a soft, deformable state after the baking operation. Thereafter the rolled wafer cone is permitted to harden. In order to ensure the production of wafer cones having consistently exactly the same shape, it is proposed that the wafer cone which is unrestrained at least in part is shortened in the winding mold to a predetermined length while the wafer cone is adapted to be plastically deformed. For this purpose the rolled wafer cone disposed in the winding mold is subjected to a plastic deformation only at one end or only at both ends.

Abstract: Apparatus for preparing deep-fat fried comestibles including a conveyor for receiving comestibles as they are introduced to the fryer from a food supply and for conveying the comestibles along an arcuate path through a reservoir containing a quantity of cooking medium to cook the comestibles therein prior to draining and discharging the comestibles from the apparatus.

Abstract: An elongated vat of heated cooking liquid such as coil is provided and slices of raw potato are admitted into one end of the tank and moved longitudinally of the latter toward the other end of the tank. As the potato slices reach the other end of the tank, they are removed therefrom. The potato slices are conveyed longitudinally of the tank through the utilization of inversely cyclically moved frames suspended above the vat and extending longitudinally thereof with each frame including a plurality of depending fingers spaced both longitudinally and transversely of the tank. Each frame is lowered from a starting position with the fingers thereof spaced above the level of cooking oil in the tank to a position with the fingers extending through the cooking oil level.

Abstract: A 2000 ton hydraulic press is designed to eliminate the side slabs and substantial cross-head associated with conventional presses. The press simply has a base that includes a lower platen and bolster plate. Four vertical posts extend upwardly through the lower platen bolster plate, and guide structure beneath the lower platen bolster plate constrains the posts to move vertically while bearing horizontal forces and bending moments which may be applied to posts for example during compression of a mold containing a molding charge. Four large-bore, short-stroke hydraulic cylinders are attached to the base below the lower platen bolster plate, and serve to raise and lower the posts during compression phases of operation.

Abstract: An endless printing band (1) consists preferably of rubber or synthetic rubber and in its production is cut from a hose-like blank by cuts extending along its edge. Said printing band (1) has in the one region of its outer side visually readable characters (3) and in an opposite region laterally inverted raised printable characters (5). In the region of the readable characters (3) on the inner side (11) of the printing band (1) inwardly projecting cams (6) are provided for the advance of the band while the inner side (7) of the region comprising the printable characters (5) is smooth.