baber/WOPTO huggingface dataset:
Patent GB-1282127-A (GB)
Title: Improvements in or relating to rotary apparatus for molten plastics
IPC: B29C48/10
Filed: 1969-12-12
Abstract: 1282127 Rotary tube extrusion head GLOUCESTER ENG CO Inc 12 Dec 1969 [19 Dec 1968] 60713/69 Heading B5A [Also in Division F2] Blown molten plastics e.g. vinyl, layflat film is extruded from a rotary film die (28), Fig. 1 (not printed), carried by a rotated spindle 30, Fig. 2, comprising a melt flow passage 30b which connects, at an annular seal 38, to a cross-head melt flow passage 40a, defined in a stationary plug 40 which is removable e.g., for cleaning and replacement of the seal 38, away from the spindle 30 and downwardly from a stationary housing 34, to the underside whereof it is secured by screws and to a cylindrical surface 34b whereof it is clamped by engagement at a seal 40f with an adaptor threaded at 34c into the housing 34. In the Fig. 2 and Fig. 2a embodiment, the seal 38 comprises an annular cup packing 50, the channel whereof may be filled with high temperature resistant rubber, surmounted by a face seal 52 comprising a thin steel backing supporting a matrix of spherical bronze particles impregnated with lead/p.t.f.e. mixture. In this embodiment, the spindle 30 is secured in position with bearings 42, 44 by a bearing cap 46 threadedly engaging the housing 34, and a path 34f is provided for leakage of plastics past the seal. In the Fig. 5 embodiment (not printed), the seal is effected by an annular p.t.f.e. member against which the rotating spindle (70) is adjustable urged by a manually actuated pinion (92) engaging with rack teeth around the periphery of the bearing cap (98). In the Fig. 8 embodiment (not printed), the seal comprises an annular member which may be of carbon, or of similar nature to the seal 52 of the Fig. 2 embodiment, against which the rotating spindle (112) is urged either by "Bellvile", or one or more helical compression springs which act between the bearing cap (114) and the spindle bearing assembly (110), and this construction provides a safety device against excess extrusion pressures, which cause axial separation of the rotating shaft from the stationary plug against the spring loading.
Patent GB-1262837-A (GB)
Title: Sorting machine
Inventor: WITTMANN PAUL
IPC: B07B13/075
Filed: 1970-12-22
Abstract: 1,262,837. Sorting machine. P. WITTMANN. 22 Dec., 1970 [29 Dec., 1969; 17 March, 1970], No. 60916/70. Heading B2H. A potato sorting machine comprises a number of rotary rollers 20 which are made up of individual discs 21 of non-cylindrical profile which lie side by side, the rollers between them defining sorting spaces, and the distance between the discs of the individual rollers being adjustable. The rollers 20 form part of an endless sorting belt 16 in which the discs 21 made of resilient material are mounted on shafts 23 rotatably supported at both ends in endless chains 24a, 24b. Adjacent the chain 24b a gear 25 is attached to each shaft 23 and meshes with a rack 26 attached to the machine frame 11 and extending parallel to the top run of the belt 16 so that the rollers when in this region rotate around their own axes. A series of strips 30 of L-section extend parallel with a lateral run of the sorting belt 16 with their inner surfaces co-acting with the chamferings 22 of the discs 21 so that the latter are aligned by the strips 30 on each rotation of the belt 16 and are adjusted in their mutual distances by the lateral displacement of the strips. For this purpose, the strips have sliding blocks 31 which slide on horizontal rods 32 attached to lateral frame members 33, the blocks having guide pins 34 extending through slots 35 in a guide plate 36 which can be moved up or down by a screwthreaded spindle 42 rotatable through bevel gears 45 by a shaft 44 and a crank 43. The slots 35 are inclined at various angles with the central slots extending parallel with the strips 30 and the inclination of the slots increasing with increasing distance from the centre line. When the plate 36 is moved far enough downwards for the guide pins 34 to move in the top ends of the slots 35, the strips 30 are at mutual distances S min. apart and the discs 21 are brought to their closest position corresponding to the minimum sorting diameter. On the other hand, movement  of the plate 36 upwards for the pins 34 to abut the bottom ends of the slots 35, causes the strips to be S max. apart and the discs to be at their maximum distance apart corresponding to the maximum sorting diameter D max. A pivotably mounted plate formed with arcuate slots may be substituted for the guide plate 36 with linear slots. A number of machines 10, 10' may be disposed one after the other with a rail 19 bridging the gap between each machine and the sorting spaces between the discs of each machine being different so that sorting can be performed to different sizes.
Patent GB-1299180-A (GB)
Title: Dyeing polyacrylonitrile
IPC: D06P1/66
Filed: 1969-12-23
Abstract: 1299180 Dyeing polyacrylonitrile AGRIPAT SA 23 Dec 1969 [26 Dec 1968] 62683/69 Heading D1B Aqueous dyebaths comprise water, a basic dye and a compound of formula: in which R is an alkyl group of 8 to 20 carbon atoms, R' is propyl or butyl or N(R') 3  is an alkylated or benzocondensed heterocyclic radical containing 5 to 7 ring members and X is halogen, methyl sulphate or toluene sulphonate and are used for dyeing fibrous materials comprising at least 50% by weight of polyacrylonitrile which materials may be copolymers of acrylonitrile with vinyl-alcohol, - acetate, - propionate, - chloride, - bromide, - pyridine, - imidazole, vinylidene chloride and acrylic acid esters and amides, methacrylic acid amides and esters. N(R') 3  may be a residue of an alkylated pyrrole, pyrrolidine, piperidine, pyridine, morpholine or hexamethylene imine.
Patent GB-733342-A (GB)
Abstract: 733,342. Cash registers. GROSS, H., and GROSS, S. Jan. 8, 1953 [Jan. 8, 1952], No. 574/52. Class 106 (1). [Also in Group VIII] In an autographic attachment for a cash register, the paper strip is advanced by a pawl and ratchet on actuation of a particular key, which may be a special key for this purpose or a predetermined one of the transaction keys, but may also be advanced by means of a thumbwheel secured to a take-up spool for the strip and partially projecting from the cash register casing. The paper strip passes from a supply roll on a spool 18 held betwean bevelled pins 28, 29, one of which is withdrawable. A frame 19 carrying the pins is pivoted about the take-up spool 17 which is mounted in brackets 16 secured to a flap 11 hinged on the front of the machine casing. The strip passes round a guide plate 35, part of which forms the writing surface, and beneath a glass panel 37 and its end is secured in a slot in the spool 17. An aperture 36 is formed in the flap 11. The strip may be advanced by the thumb-wheel 23 which projects through the flap or by a pawl 40 cooperating with a ratchet wheel 22 fast with the spool. The pawl passes into the main machine casing and may be operated by a special key or by a selected control key. It may be connected with mechanism which operates a counter on depression of a " No Sale " key. A detent pawl 41 also co-operates with the ratchet wheel 22. The flap 11 is normally retained in position by a lock 13 but to gain access to the spools it may be swung upwardly about its hinge 12 through about 180 degrees. The frame 19, which is normally held fast with the flap by a spring clip 27, may then be rocked downwardly. The used portion of the strip is severed by pushing a cutting wheel 50 against the strip, which is backed by the plate 35, against the action of a leaf spring 51, and moving it along a bar 47 carried by the frame 19.
Patent GB-743862-A (GB)
IPC: B63B35/04
Abstract: 743,862. Laying cables. JOHNSON & PHILLIPS, Ltd., and HARTLEY, A. C. April 1, 1954 [April 1, 1953], No. 9076/53. Class 78 (5). A device for controlling the longitudinal movement of a cable 13 at an intermediate point of the path thereof, comprises two pulleys 4, 5 together movable between two positions, namely an inoperative position at which said cable passes freely between them and an operative position at which the pulleys engage the cable so that said cable makes a part turn round each of them in turn. As shown, cable 13 (Fig. 1) having repeaters therein passes round winches 2 and 3 mounted on ship deck 1. Each winch (Fig. 5) has two pulleys 4, 5 which are driven from motor 8 and braked by hydraulic brake 7, and are mounted on frame 6 rotatable by motor 10. In use, winch 2 is rotated to allow a repeater to pass through and between its pulleys, and then, in turn, winch 3 is similarly rotated to allow the repeater again to pass. Specification 734,082 is referred to.
Patent GB-2004390-A (GB)
Title: Safety control system or presses
IPC: B30B15/28
Filed: 1978-09-15
Abstract: In a known type of two-channel safety control system for presses, which monitors itself for internal defects, the actual control lines lying outside a control unit may be damaged without this defect being detected. To overcome this defect the present system has a quasi- anticoincidence connection of the control lines to the control unit with respect to the two channels 10, 11. The control system can be used in presses which are liable to be operated on a single stroke basis or in punches. <IMAGE>
Patent GB-2008804-A (GB)
Title: A hydraulic variable- displacement axial piston pump having torque limitation
IPC: F04B1/26
Filed: 1978-09-20
Abstract: In a hydraulic variable- displacement axial piston pump comprising a swash means which tends to move to a de-swashed condition when the pump is working, a torque limiting device comprises a piston and cylinder arrangement having a movable member, e.g. the cylinder or as shown the piston 31, which when extended acts via its face 33 on the swash means to increase the displacement of the pump, a spool 38, and a spring 41 which has one end acting on the spool and its other end acting on the movable member 31 thereby placing the spool under a spring load which varies with the extension of the movable member. The spool moves in response to pump delivery pressure received through passage 42, to control the flow of actuating fluid to the movable member 31, whereby a limitation on the on-swash condition of the swash means is obtained which is inversely proportional to the pressure at which the hydraulic fluid is discharged from the pump. <IMAGE>
Patent GB-2031720-A (GB)
Title: Step stool
IPC: A47C12/02
Filed: 1978-10-20
Abstract: A step stool having a base 10 with a step 25 formed into one of its sides and a single aperture in its top surface through which a step assembly of at least one step 28 and a platform 8 operate at an angle from the horizontal, usable both in a collapsed position 9 shown and in an extended position. When collapsed, the step assembly fits around the step in the base without impingement. The step assembly has a stop means 10 at its lower end which assists in locking it in place in the extended position, and also keeps it from pulling completely out of the base during operation. <IMAGE>
Patent GB-2008471-A (GB)
Title: Dry-Shavers
IPC: B26B19/42
Filed: 1978-11-24
Abstract: A shaving head for a dry-shaver has a movable cutting unit (5) which comprises a plurality of hair-cutting blades (23) and a plurality of hair- pulling blades (24) each arranged in front of an associated one of the hair- cutting blades with respect to the direction of movement thereof and having a surface (27) which is arranged for sliding contact with the shear plate (3) of the shaving head, the hair-pulling blades being movable with the hair- cutting blades over the hair-entry apertures (4) of the shear plate in the operation of the shaving head and each hair- pulling blade being movable relative to the associated hair-cutting blade away from and towards the shear plate, the shape and dimensions of the sliding surface of each hair-pulling blade being such that in every position of the blade in which the sliding surface thereof extends over a hair-entry aperture, a portion of said surface is in contact with a part of the shear plate adjacent that aperture. <IMAGE>
Patent GB-2039704-A (GB)
Title: Improved coat for four legged animals
IPC: A01K13/00
Filed: 1979-01-16
Abstract: A coat for a dog or other pet animal comprises a body panel 10 which lies along the back of the animal and extends down its sides and having at one end a head aperture 11. A chest panel 12 extends forwardly from the head aperture and ventral panel 13 extends forwardly from the chest panel. Flaps 15, 15a are secured to the body panel. The ventral panel is foldable underneath the body panel to define foreleg openings and its opposed edges extend behind the foreleg openings and each underlying a respective body flap 15 or 15a. Means on or in the ventral panel and the body flap releasably secure said panel and said flaps together. <IMAGE>
Patent GB-2014703-A (GB)
Title: Faucet and Sanitary Cleansing Means for Association therewith
IPC: F16K5/06
Filed: 1979-02-20
Abstract: Cleansing means associated with a sanitary pan incorporate a nozzle to direct a spray of water within the space framed by a pan seat, and a faucet to control flow of water to the nozzle. The faucet comprises a casing 6 with inlet and outlet water couplings 7, 8 connected to it, and a rotatable, spherical, diametrically-bored closure member 12 located between the mutually adjacent ends of the couplings 7, 8 and there held by O- rings 17 which bear on the closure member 12 and are housed in skirts 16 on said ends. <IMAGE>
Patent GB-2046344-A (GB)
Title: Retaining clips for boards or tiles
IPC: F16B2/24
Filed: 1979-02-21
Abstract: A retaining clip 10 is fabricated of spring steel strip and includes a pair of inclined arms 11 joined together by a web. A pair of legs extend downwardly from and are integrally formed with the web. A pair of inward tags 16 are punched out of each leg between its upper and lower ends. In use the legs can be secured on either side of the vertical flange 22 of a support frame element 20; in this position the arms 11 resiliently engage tiles 21 resting on horizontal flanges of the support frame element. The clips are particularly suitable for use in assembling suspended ceilings. The vertical spacing between tags 16 enables different thicknesses of tile to be accommodated. <IMAGE>
Patent GB-2016404-A (GB)
Title: A cross-beam for hoists
IPC: B66C1/00
Filed: 1979-03-14
Abstract: A cross-beam for a hoist has two adjacent double T beams standing on edge to form two adjacent I beams 2 and formed in opposing ends of the cross-beam are longitudinal recesses 1 in which load blocks 5 are supported. These recesses are positioned substantially in the region of the neutral axis of the cross-beam and the load blocks are each supported by a spindle 8 which is mounted in a bearing 7 and slidably movable in runners 4 so that the load blocks may be spaced apart from one another by differing amounts. An uppermost part (when in use) of the recesses is open by an amount sufficient to allow insertion of a load block. In a preferred embodiment each load block is connected by two hangers 9 to a lifting eye 6 and an elongate slot 13 is formed in each hanger where it is supported on a lug 14 of the runner and a stop 10 is mounted on each hanger which in operation co-operates with an upper boundary of the recesses. Thus, when the lifting eye contacts the ground there is some vertical freedom of movement for the lifting eye so as to thereby reduce damage to the spindle upon which the load block is mounted. <IMAGE>
Patent GB-2025057-A (GB)
Title: Percutaneous Blood-oxygen- concentration Measuring Sensor
IPC: G01N27/49
Filed: 1979-05-15
Abstract: A percutaneous blood-oxygen- concentration measuring sensor has an electrode assembly with a cathode 1 and an anode 3 which are insulated from each other by an insulator 2. An electrode membrane 5 is supported by a supporting member 6 and is arranged to hold electrolyte 8 between itself and the end portion of the electrode assembly. The membrane 5 is preformed to conform with the configuration of the end portion of the electrode assembly. <IMAGE>
Patent GB-2022144-A (GB)
Title: Molybdenum additives and methods of producing same
IPC: C22B34/34
Filed: 1979-05-16
Abstract: A method of preparing a molybdenum additive material for alloying is provided by heating a carbon and molybdenum oxide mixture containing substantial amounts of bismuth impurity in an inert atmosphere to a temperature between 649 DEG C and 871 DEG C for at least one hour then to a temperature of at least 982 DEG C for at least one hour to lower the bismuth content and reduce at least a portion of the molybdenum oxide to molybdenum metal.
Patent GB-2044813-A (GB)
Title: Improved strand winding device and support cap for yarn tube carriers
IPC: B65H54/553
Filed: 1979-06-13
Abstract: An end cap adapter for supporting an end of a tubular yarn carrier, comprises an end cap (20) having an axial projection (44) for insertion into the ends of a tubular yarn support carrier. Mounted on the projection of the end cap is a resilient, radially expandable ring (62) having internal surface portions matingly received about the projection with radial protrusions on the projection residing in corresponding recesses in the ring. Upon initial rotation of a yarn support tube by peripheral engagement with a driving roller, the tube and rings of the end cap adapters move slightly relative to the main body of the cap to move the cap projections into engagement with surface portions of the ring and expand the ring against interior walls of the tube, thus ensuring positive grip of the tube to prevent improper transfer tail formation and provide proper yarn package build during yarn collection. <IMAGE>
Patent GB-2028660-A (GB)
Title: Administration set
IPC: A61M5/14
Filed: 1979-07-09
Abstract: An administration set including a burette with an air valve 42 communicating with the burette chamber. The air valve comprises a stationary port extending from a top portion of the burette chamber with a fitting 58 closing the port except for a small passageway 60 defined by a top portion of the fitting. A closure member 70 overlies the port, is pivotally connected therewith and has an opening 74 for communication with the small passageway when the closure is pivoted to a predetermined open position. The closure member opening and the small passageway are segregated by a resilient ball 82 when the closure member is not in the predetermined open position. A filter member 54 is received within the port and directly underlies the small passageway. <IMAGE>
Patent GB-2027188-A (GB)
Title: Adhesive jointed reflector-lens in vehicle headlamps
IPC: F21V17/00
Filed: 1979-07-31
Abstract: A light unit for a motor vehicle headlamp consists of a reflector (10) and a lens (20) connected by a bead (30) of epoxy resin adhesive. The reflector has a lip (11) which surrounds a rim (21) on the lens, with a substantial radial clearance, which is filled by the adhesive. The reflector (10) also has lugs (16) which co- operate with complementary recesses (26) in the lens to centre the reflector relative to the lens, so that the radial clearance is uniform, before the adhesive sets. The presence of a generous thickness of adhesive helps to avoid troubles arising from differential thermal expansion. <IMAGE>
Patent GB-2026551-A (GB)
Title: Cleaning oily surfaces
IPC: C23G5/06
Filed: 1979-08-10
Abstract: Surfaces which are contaminated with oil are cleaned by contacting the surfaces with a cleaner comprising an organic solvent and an aqueous solution of a substance which decreases the surface tension and/or increases the alkalinity of the solution, and in which subsequent to the cleaning operation the contaminated cleaner is separated from the bodies being cleaned and on standing separates into organic and aqueous phases. The preferred cleaner comprises an alcohol, ketone or hydrocarbon solvent and an aqueous solution of an alkali, phosphate or silicate. Metals, glass, ceramic or plastics may be cleaned.
Patent GB-2034752-A (GB)
Title: Electrochemical Machine for Removing Metal
IPC: C25F3/16
Filed: 1979-08-15
Abstract: The apparatus comprises an electrode (23) held in a nozzle (34) of an electrode assembly (24). The electrode (23) has a plate-like end portion (47) into the surface of which are embedded diamond particles. The electrode (23) is connected to a voltage source delivering a square waveform by way of a cable (36), and a tube (27) supplies a flow of electrolyte to the electrode (23) through the nozzle (34). <IMAGE>
Patent GB-2028390-A (GB)
Title: Fire Blanket Material
IPC: A62C8/06
Filed: 1979-08-29
Abstract: The material comprises a layer of flame-proofed, fibre felt faced on one side thereof with a flexible, gas- impermeable covering e.g. a metallic foil, such as aluminium foil, or of a thermoplastics film, which may itself be metallised or carry a metallic foil on the face remote from the felt. The effect of the coating is to render the felt impermeable to gases i.e. combustion products, and, in the case where the cooling comprises the thermoplastics film, to act as a binder at temperatures to which the material is submitted in use. The material is especially useful for extinguishing chip-pan fires.
Patent GB-2041690-A (GB)
Title: Optical method for measuring distances and contours
IPC: G01B11/24
Filed: 1980-01-28
Abstract: A method for measuring distances and for determining the three- dimensional contour of a workpiece, which includes directing two intersect- ing light beams (3,4) onto a workpiece (12) to be measured, determining the light points (13,14) produced by the beams on the workpiece surface and measuring the angles ( alpha ,  beta ) of inclination of the striking beams in their common plane. The laser light beams (3,4) may be scanned along a contour (12) by means of pivotting coupled mirrors (5,6) and the light spots (13,14) position determined by photodiode screens (17,18), the beams being of different colours to be separated by a dichroic mirror (16), or one beam may be scanned much faster than the other and the inclination valves ( alpha ,  beta ) taken when the two spots coincide. <IMAGE>
Patent GB-2042699-A (GB)
Title: Kiln with ceramic-fibre lining slabs
IPC: F27D1/00
Filed: 1980-02-01
Abstract: A kiln provided with a plurality of layers of ceramic-fiber lining slabs 2 secured to the inner surfaces of a casing 1 and formed with a plurality of holes 3 extending in the direction of the thicknesses of the lining slabs. A support rod 4 is inserted in each of the holes 3 and secured at its forward end to the innermost layer of the lining slabs while its base portion extends through each wall of the casing to the outside, to secure the layers of lining slabs in position. A spring device 7 is mounted on the base portion of each support rod to urge by its biasing force the layers of lining slabs to move toward the inner surface of the casing at all times to avoid formation of gaps between the layers of the lining slabs which would otherwise be caused by shrinking of the ceramic fiber due to exposure to the heat of high temperature. <IMAGE>
Patent GB-2068212-A (GB)
Title: Improvements in or relating to protective headware
IPC: A42B3/22
Filed: 1980-02-05
Abstract: A safety helmet 1 is provided with a face protector 8 which is retractable within the helmet. <IMAGE>
Patent GB-2066934-A (GB)
Title: Electrical heating boiler
IPC: F24H1/22
Filed: 1980-04-09
Abstract: A domestic electrical heating boiler has an overall casing containing a heating tank of parallelipiped shape with a pipe 14 leading in water to be heated and a pipe 15 leading out the heated water. Electrical resistance heating elements shown in part at 3, 4 and 5 extend horizontally across the tank between its two narrower vertical sides. Below any or each heating element is a baffle plate arrangement such as at 21, 22, 23 or 24, 25 or 26, 27 to impose a meandering path on the upward flow of water. <IMAGE>