baber/WOPTO huggingface dataset:
Patent GB-1253643-A (GB)
Title: Apparatus for classifying ground material
IPC: B07B7/08
Filed: 1970-01-30
Abstract: 1,253,643. Upward current and centrifugal classifier. CHRISTIAN PFEIFFER OFFENE HANDEL-GESELLSCHAFT. 30 Jan., 1970 [4 Feb., 1969; 15 March, 1969], No. 4469/70. Headings B2H and B2P. In an upward air-current classifier of the circulating air flow type comprising an impeller 9a, Fig. 1, for generating the air circulation stream 14, a counter-impeller 10 for regulating the size of the fine fraction, and a thrower disc 8 for distributing the material to be classified across the classifying chamber 17, cool or warm external air 13 is drawn through inlet ports 12 in the classifier cover 1 and mixed, in the annular space 15 between the classifying chamber 17 and the classifier housing 2, with circulating air laden with the fine fraction, part of the air mixture being circulated via louvres 16 upwardly through the classifying chamber 17 and the remainder of the mixture after deflection and simultaneous separation of the fine fraction being drawn-off as excess air from the lower part of the classifier via a cone 21 and sockets 22. The temperature of the external air 13 may be regulated to effect cooling or drying of the material in the classifying chamber 17. The impeller 9a is constituted by a set of blades mounted on the lower side of an annular disc 9c on the upper side of which is disposed another set of blades 9b which draws the external air 13. The blades 9a, 9b may be inclined at different angles to the disc 9c. Instead of a single double-bladed impeller two separate impellers, which may be driven independently at different speeds, may be provided. As shown, the thrower disc 8, the double-bladed impeller 9a and the counter-impeller 10 are driven from the same shaft 6. The material to be classified is fed in at 11. In another embodiment, Fig. 4, a thrower disc 111 and a counter-impeller 112 are mounted on a core shaft 107 and an impeller 109 for circulating air 117 is mounted on a tubular shaft 106. The shaft 106, 107 may be independently driven. The material to be classified is fed from the side through a fluidised bed trough 114 terminating above the disc 111. External air is drawn in through ports 115 in which are mounted curved adjustable guide plates 125 which impart a twist or deflection to the incoming air. Each exhaust air socket 124 is connected to a filter 140 and a suction blower 141, Fig. 6.
Patent GB-1164412-A (GB)
Title: Derivatives of 2alpha,3alpha-Epithiosteroids and process for the preparation thereof
Inventor: KOMENO TAICHIRO
IPC: A61K31/568
Filed: 1968-01-29
Abstract: 1,164,412. 2α,3α - Epithio - 5α - androstanes. SHIONOGI & CO. Ltd. 29 Jan., 1968 [28 Jan., 1967], No. 4505/68. Heading C2U. Novel compounds of formula (wherein R is C 1-5  alkyl and n is 4-6) are prepared by reaction of 2α,3α-epithio-5α-androstan- 17#-ol with an appropriate 1-alkoxycycloalkene or 1,1-dialkoxycycloalkane. The compounds of Formula I possess anabolic, myogenic, androgenic, uterotropic, antiuterotropic, antiestrogenic and contragestive activities, and may be incorporated together with diluents or carriers into pharmaceutical compositions suitable for oral and parenteral administration. Reference has been directed by the Comptroller to Specification 977,599.
Patent GB-1298089-A (GB)
Title: Electric switch made of conducting elastomer
Inventor: SUDDUTH WILLIAM BARBER
IPC: H01H13/702
Filed: 1970-01-30
Abstract: 1298089 Retractive switches; contacts W B SUDDUTH 30 Jan 1970 [24 Feb 1969 29 Dee 1969] 4539/70 Heading H1N An electric-switch keyboard assembly comprises a sheet 30, Fig. 5, of a flexible, electrically conductive polymeric material engageable with one or more contacts 51, 52, Fig. 4. The material may be an elastomer or such as a conductive silicone or fluoro-silicone filled with finely divided particles of carbon or silver. In the application shown, the sheet 30 is mounted above an apertured insulating plate 40 and has multiple projections 31 for bridging selected decimal coded printed-circuit contact pairs 51, 52 when depressed by selected insulating buttons 32 accessible through apertures 21 in a cover plate 11. In a modification (not shown) the projections 31 may engage binary coded sets of contacts through one or more apertures placed at the required coding positions in a plate (140), Fig. 10 (not shown). Some smaller apertures (207) may also be arranged adjacent to the main apertures whereby contacts under the smaller apertures are engaged after a time delay and act in a "strobe" circuit for indicating that the required coded circuits have been depressed.
Patent GB-1142985-A (GB)
Title: Polymerization of a vinyl or vinylidene compound
IPC: C08F4/34
Filed: 1968-01-29
Abstract: 1,142,985. Polymerization of ethylenic compounds. CHISSO CORP., and K. TAKEMOTO. 29 Jan., 1968 [3 Feb., 1967], No. 4542/68. Heading C3P. Vinyl or vinylidene compounds are polymerized in the presence of an organic polymer containing amide chain linkages or free hydroxy groups, water and carbon tetrachloride or tetrabromide, and in the absence of conventional free-radical polymerization catalysts. Specified monomers are N-vinyl-2-methyl or N-vinyl-2-ethyl-imidazole, methyl methacrylate or acrylate, 4-vinyl or 2-methyl-5-vinyl pyridine, acrylonitrile and styrene. Specified organic polymers are cellulose, silk and polyvinyl alcohol. The product contains only minor amounts of graft polymer. The polymerization is suitably performed in the absence of light and without polymerization catalysts. In the examples homopolymers of the above monomers and a copolymer of methyl methacrylate and N-vinyl-2-methyl-imidazole are prepared.
Patent GB-956119-A (GB)
Title: Improvements in or relating to a lead pencil and method of manufacture
Inventor: GROSSMAN HAROLD
IPC: B43K19/16
Filed: 1963-02-04
Abstract: 956,119. Pencils. HASSENFELD BROS Inc. Feb. 4, 1963, No. 4543/63. Heading B6P. The greasy lead of a pencil is adhered directly to a wood sheath by an adhesive film of vinyl resin, e.g. plasticized polyvinyl acetate. The polyvinyl acetate may be plasticized with a benzoic acid derivative in the proportions of 80 to 95% polyvinyl acetate and 5 to 20% of benzoic acid acid. In one method of making a pencil, dry vinyl adhesive film is provided within the grooves and upon the adjacent flat areas of a grooved wood sheath formed in two halves. The sheath is assembled with a greasy lead disposed in the grooves and heat and pressure are applied to the assembly to adhere the lead and sheath and the halves of the sheath. U.S.A. Specifications 1,892,508, 1,958,194, 2,098,452, 2,131,657, 2,190,518, 2,228,772, 2,229,633 and 2,515,118 are referred to.
Patent GB-427357-A (GB)
Title: Selective controlling devices for electrically operated brocade looms, card cutting machines and other similar purposes
IPC: D03C3/20
Filed: 1934-02-12
Abstract: 427,357. Jacqnards; card - cutting machines. NAKANISHI, K., and NAKANISHI, K., 21, Katadoicho, Hakata, Fukuoka, Japan. Feb. 12, 1934, No. 4648. Convention date, Feb. 13, 1933. [Class 142 (i)] [See also Group VIII] A selective controlling device for electrically operated brocade looms, card-cutting machines, or knitting-machines, comprises a series of pivoted latches 25 which are selectively operated, by a movable electromagnet 20, to release one or more pivoted elements 27, movement of the latter, under action of a spring 30, causing a rod 32 to position its associated harness hook 33 in the path of a vertically movable griffe 34. In the construction shown, four electromagnets are carried by a frame 19 which is non-rotatably mounted on a shaft 18, but is slidable thereon past the latches 25 under the action of a screw-operated frame 17, the screw 16 being driven by gearing 51-45 from a motor 44. The frame 17 carries brushes 21 for engagement with bus-bars 15 forming part of a circuit which includes a battery 13 and a photo-electric cell 5, the latter being adapted to register the light and dark portions on a design 1. The design is carried by a sliding board which is moved in synchronism with the magnet by a cam 55 on a shaft 56 which is driven by worm gearing 54, 53 from the shaft 18, the latter being driven, through gears 52, 51, by the shaft 16. A ratchet device 59 is provided for moving the board transversely. The selected elements 27 are restored to normal latch-engaging position, at the end of each selection and at the beginning of the upward movement of the griffe 34, by a cam operated restoring member 60. The latches 25 may be arranged on both sides of the rotary magnet 20 and the latter may be replaced by a single travelling electromagnet. The Specification as open to inspection under Sect. 91 also describes a controlling device comprising a number of fixed electromagnets each adapted to operate a latch 25. This subject-matter does not appear in the Specification as accepted.
Patent GB-1474315-A (GB)
Title: Exhaust gas system
IPC: F01N3/02
Filed: 1975-02-04
Abstract: 1474315 Exhaust silencers NISSAN MOTOR CO Ltd 4 Feb 1975 [23 May 1974] 4702/75 Heading F1B An exhaust muffler has a tubular body 18, closed at each end by plates 26, 28, and a plurality of exhaust gas tubes 30, 32, 34 arranged longitudinally of the body 18. The outlet end of each tube 30, 32 (except the last) opens into an expansion chamber 36, 38 and the inlet end of at least one tube 34 (except the first) is closed e.g. by a cap 40 which may have apertures and provided with peripherally arranged apertures 42 in its wall. This arrangement ensures that hot pieces of catalyst, which may break off from an afterburner, are trapped in an expansion chamber 38. The apertures 42 may have a circular configuration and a diameter of 2-8 mm. Their total cross-sectional area is preferably not less than ¢ of the cross-sectional area of the tubes in which they are made. In alternative arrangements (not shown) the tube may have its inlet end closed off by the end-plates (26) or an internal transverse partition.
Patent GB-1113091-A (GB)
Title: Measuring instrument
IPC: G01B3/08
Filed: 1965-02-03
Abstract: 1,113,091. Telescopic rules. S. G. YOUNG. March 30, 1966 [Feb. 3, 1965], No.4788/65. Heading G1M. [Also in Division E2] A linear measuring instrument comprises at least two tel escopically engageable tubular staffs 1, 2 which can be releasably locked in an extended position, the locking means comprising a lever 4 mounted in each or the inner staff, a first hole in the peripheral wall of the or each inner staff permitting part 6 of the lever to pass therethrough and a second hole in the or each outer staff also permitting the lever part 6 to pass therethrough, spring means 11 being provided to urge the lever part through both holes when they are aligned. If the instrument comprises more than two staffs it is preferable that each inner staff be withdrawn from the same end of the outermost staff. In the embodiments described the part of the lever which extends through the holes is in the form of an integral tapered terminal butter of rectangular or circular cross-section. Both the inner and outer staffs are preferably terminated in replaceable hard balls 16, Fig. 8 or in calipher ends 18 Fig. 10 (not shown). The staffs are prevented from relative rotation by being formed of rectangular cross-section. The lever 4 is mounted on a block 3 fixed to the tube 1.
Patent GB-1047611-A (GB)
Title: Improvements in ring spinning and twisting frames
IPC: D01H9/14
Filed: 1964-02-05
Abstract: In a ring-spinning frame, for each spindle there is a thread-guide tube between the delivery means and the spindle, the tube having a length about ten times its internal diameter and so arranged relatively to the spindle that the thread immediately on leaving the tube describes a conical path, of which the generatrix is inclined to the vertical at an angle which does not exceed 45 degrees and preferably does not exceed 30 degrees.  In Fig. 1, not shown, each tube is carried by a bracket on a rod 60 which can be rotated to displace all the tubes for ease of doffing.  In Fig. 5, (not shown), each tube is mounted on an arm 128 secured to a rod 116 which when a locking device 138, 140, 142, is released can be rotated by a handle 148 displacing the tubes: in addition, each tube is mounted on the arm 128 by an open-fronted socket 158 into and out of which a conical sleeve on the end of the tube can be slipped for ease of threading up and doffing individual spindles.  Other features (a) the thread is drawn from a supply 30 by nip rollers 50, 42 whence it maintains in equilibrium an unbalanced segment 40.  When a yarn breaks, the segment pushes the upper roller along guides 48 to damp the thread; (b) there may be a guide 59 at the outlet of the tube; (c) a balloon-restricting sleeve or ring moving with the ring-rail may be provided; (d) a pin 66 to trap broken threads may be provided on top of the spindle; (e) the tube may be slotted for threading-up.
Patent GB-1173197-A (GB)
Title: Filamentary Reinforcing Material
IPC: B60C9/00
Filed: 1967-02-01
Abstract: 1,173,197. Pneumatic tyres. CELANESE CORP. 1 Feb., 1967 [7 Feb., 1966], No. 4810/67. Heading B7C. [Also in Division D1] A cord for use as a reinforcement in vehicle tyres comprises a linear polyester monofilament having helically wound upon it a hydrophilic multifilament yarn, of, for example, viscose rayon, cotton, or sisal. There may be more than one monofilament in the cord and the monofilament or monofilaments may be of circular, or Y- or X-shaped cross-section and have a pebbled or indented surface. The cord may be treated by being dipped in a bath containing epoxy resin, water and dioctyl sodium sulphosuccinate, heat dried, and then dipped in a bath of a vinyl pyridene latex, a SBR rubber latex, and an aged resorcinolformaldehyde resin solution.
Patent GB-739641-A (GB)
Title: Protective covering for standing vehicles
IPC: B60J11/00
Filed: 1954-02-18
Abstract: 739,641. Vehicle coverings. BINI, G. Feb. 18, 1954 [Sept. 15, 1953], No. 4812/54. Class 108 (1). A vehicle covering comprises cloth lengths 21 mounted on pairs of spring-loaded rollers which are carried by slides 11 adapted to be extended transversely of the vehicle beyond the side walls. The guideways for the slides 11 are mounted on the member 2 which is detachably secured to the roof. In the retracted position the rollers may be covered by a flexible cover 23 or by a roller-mounted cover disposed inside the head 12. Transverse stiffeners 21b and depending side covers may be secured to the cloth lengths. Two cloth lengths may also be secured to a single roller so that one length extends forwardly and one rearwardly when opened out.
Patent GB-587665-A (GB)
Title: Improvements in or relating to vapour electric arc converters
IPC: H01J13/20
Filed: 1941-04-11
Abstract: 587,665. Metal-vapour converters. GENERAL ELECTRIC CO., Ltd., and GALLIZIA, E. April 11, 1941, No. 4843. [Class 39 (i)] In a metal vapour con. verter of the kind in which the anode 3 is enclosed in a tubular shield 4 along with a de-ionising grid 5, a de-ionising surface in the form of a rod or tube 8 is provided separate from the grid and extending coaxial with and for the major portion of the shield between the open end thereof and the grid. The rod or tube may have a corrugated surface, and may be of iron with a graphite tip 9 adjacent the grid.
Patent GB-889467-A (GB)
Title: Improvements in or relating to waveguide switches
Inventor: FARR SIDNEY GEORGE
IPC: H01P1/12
Filed: 1960-02-11
Abstract: 889,467. Waveguide switches. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Oct. 11, 1960 [Feb. 11, 1960], No. 4852/60. Class 40(8). The oscillatable rotor of a mechanical waveguide switch is actuated by one or more double-acting pneumatic cylinders The rotor 11, Fig. 2, has one or more waveguide passages 13 for alternately connecting together fixed waveguides, e.g. 12, 14, 16, which may lead to a common transmitter and a number of aerials or a common aerial and a number of transmitters. The switch preferably embodies choke slots to prevent energy leakage The rotor is oscillated between a pair of limit stops by two arcuate double-acting cylinders 5, 8, Fig. 1, having arcuate piston rods 7, 10 connected to a radial arm on part of the rotor 11. The cylinders are connected in the manner shown to a pair of pipes 1, 2 leading to a valve (Fig. 3, not shown) which is arranged to admit compressed air to either pipe whilst connecting the other to atmosphere. The source of pressure may be that used to pressurize the waveguide system. Each pipe 1, 2 contains a valve which allows unrestricted flow of compressed air towards the cylinders but restricts flow of exhaust air in order to damp the shock at the end of the stroke. The valve may be manually actuated or actuated by a solenoid.
Patent GB-471417-A (GB)
Title: Improvements in or relating to valves
IPC: F16K27/04
Filed: 1936-02-18
Abstract: 471,417. Valves. BARTON, W. G. Feb. 18, 1936, No. 4915. [Class 135] In a wedge or gate type valve the valve body comprises a central open-sided rectangular part 2, which carries the gland 3a or support for the spindle 3, and side members 4, 5 carrying tubular flanged members 12, 13 with seatings 6 and 7 for a sliding valve member 8. The central part 2 has a wall of substantially uniform thickness without bolt or stud holes and the side members 4 and 5 are held against the side faces to form a totally enclosed housing by externally arranged bolts 18 passing directly through the members 4 and 5, which may extend beyond the central member for this purpose, or through flange plates 15, 16 loose on the tubular portions 12, 13. The joints between the central part 2 and the side members may be lightly seal-welded after assembly which welding can be easily broken when dismantling for repair or inspection.
Patent GB-230440-A (GB)
Title: Improvements in transposing devices for keyed instruments, pianofortes and the like
IPC: G10C3/28
Filed: 1925-02-23
Abstract: 230,440. Zumb³hl, J. March 10, 1924, [Convention date]. Pianofortes, transposing- means for; framing; actions.-In a transposing pianoforte or the like in which the string-frame a is moved laterally by a rack and pinion d, being held in position by a spring-belt e, the action g is mounted by means of a frame f on the string-frame so as to move therewith over the keys k. The invention is particularly applicable to overstrung pianofortes.
Patent GB-546312-A (GB)
Title: Improvements in thermostatic control devices
IPC: H01H37/52
Filed: 1941-04-17
Abstract: 546,312. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd. April 17. 1941, No. 4990. Convention date. April 17. 1940. [Class 38 (v)] [Also in Group XIII] A thermostatic bimetal element 21 has two reversely operating parts and is caused to operate a control such as a switch with snap action by resilient means like the bowed spring 37 which is so mounted as to put the blade 21 in tension. As described in connection with an electric iron, the blade alternates between two positions with temperature changes, in the upper of which a contact 29, of steel-backed silver, bridges two contacts 32, and in the other the free end of the compound blade rests on an adjustable stop screw 46, the circuit being broken. The operating temperature is adjusted by a screw 50 the height being such that when at its lowest point the contacts cannot meet. The spring 37 is pivoted to a T-piece 42 screwed to the free end of the blade and to fixed arms 44 bent down from a frame 18 in such a way as to tend to stretch the element, which can thus be thinner than usual, and also as to have a vertical component which will increase the contact pressure when in the upper position. Specification 144,767, [Class 38 (i)], is referred to.
Patent GB-322697-A (GB)
Title: Polishing apparatus
IPC: B24B23/02
Filed: 1929-02-14
Abstract: 322,697. Wales, N. B. Oct. 3, 1928, [Convention date]. No Patent granted (Sealing fee not paid). Boots and shoes, cleaning and polishing; floors, cleaning. - A machine for polishing shoes, floors, &c. consists of a shell 1 within which is an electric motor 2 driving a fan 3. Rotatable on an anti-friction, ring 15 on the shell is a holder 4, which is driven from the motor shaft through friction reduction gearing 7, 9, 13, 14, the wheels 7, 13 consisting of double conical wheels pressed apart axially by springs and engaging grooves in the wheel 9 and the holder 4; the shaft 10 of the wheel 9 is supported by an arm 11 secured to a bracket 12 on tha shell 1. The holder 4 has secured thereon, by two split rings 5<1>, 5<11>, a cushion comprising cloth, flexible skin, &c. 5, which is inflated continuously by the fan and performs the polishing; a plate 3<1> prevents wear of parts when the machine is at rest with the part 5 deflated. Handles 16 may be provided, and the machine may be secured to a table by a stirrup and screws engaging one of the handles, so that work may be applied by hand to the tool. For treating floors, a stem may be secured to the machine, and for polishing shoes, a tool, Fig. 6, having bristles 21, and a chamois leather part 22 is employed; the tools may be lined with rubber 23 to prevent too rapid leakage of air. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a construction in which the cushion contains a member permanently inflated through a valve, no fan being used. This subject-matter does not appear in the Specification as accepted.
Patent GB-212889-A (GB)
Title: Improvements in garment hangers
IPC: A47G25/48
Filed: 1924-02-27
Abstract: 212,889. Marks, N. J. March 16, 1923, [Convention date]. Coat and like hangers.-The usual garmentsupporting bar 1 is provided with a bowed resilient garment-retaining member 3 so connected with the support that pressure on the bowed part will cause portions at the ends of the bow to move longitudinally of the support and parts at them 'extreme ends to rise therefrom. A spring 8 may be interposed between the members 1, 3. The member 3 may be guided by slots 6 engaging studs, or by staples. The ends of the member 3 may be padded by rubber tubing 9.
Patent GB-311809-A (GB)
Title: Improvements in or relating to musical wind instruments
IPC: G10D9/02
Filed: 1928-02-17
Abstract: 311,809. Bourne, W. Feb. 17, 1928. Brass and like wind instruments. -To facilitate tuning, the mouthpiece 18 of a cornet, trumpet &c. has a shank 11 which is of uniform external diameter but of increasing internal diameter and slides in the tube 10 of the instrument, the tube 10 being of uniform internal diameter. The shank 11, which may may be marked with the positions of the various keys and clamped in the tube 10 by means 16, is long enough to replace the conical portion of a mouth-pipe.