baber/WOPTO huggingface dataset:
Patent GB-1144651-A (GB)
Title: Feeding balls or the like
Inventor: LAWRENCE JOSEPH ROBERT CHRISTO
IPC: B65G47/14
Filed: 1966-03-15
Abstract: 1,144,651. Fluidizing apparatus-discharge from hoppers. RALEIGH INDUSTRIES Ltd. 14 March, 1967 [15 March, 1966], No. 11287/66. Headings B8A and B8S. A hopper 15, 16 from which balls 12 are fed individually and in succession, includes an outlet 18 through which pressurized air is passed into the hopper to fluidize the balls in the region of the outlet. Air supplied via a pipe 22, may be fed into the hopper through both perforations in a conical base 16 of the hopper, and the outlet 18. Pressurized air may further be supplied to the upper region of the hopper, which is closed by a lid 19. Balls discharging from the outlet 18 pass along a tube 38 to a counting tube 39 which is provided with vent holes 39 to prevent air locks, the downstream end of the counting tube being formed by a passage 26 in a block 29, which passage is blocked by a spring loaded valve 25. Adjacent the upstream end of the tube 39, a valve 24 is secured and has a member 24b spring loaded into a retracted position permitting the passage of balls through the tube. The upstream end of the counting tube is secured to a plate 27 fixed to the upper end of a spindle 28 which is mounted via a spring 31 on a fixed support 30 and which has its lower end secured to the block 29. When the tube 39 between the two valves 24, 25 is full of balls, the whole counting assembly is manually moved downwards compressing the spring 31 and a plunger 33 on the valve 24 engages and is displaced by the support 30 whereby the valve member 24b is caused to block the tube 39. Simultaneously the valve 25 is opened and a pre-determined number of balls is dispensed from the tube 39.
Patent GB-776162-A (GB)
Title: Tuning means operable at ultra high frequencies
IPC: H03J5/02
Filed: 1954-04-20
Abstract: 776,162. Variable capacitors. STANDARD COIL PRODUCTS, CO., Inc. April 20, 1954 [May 26, 1953], No. 11364/54. Class 37. [Also in Group XL (c)] A television tuner for selecting any one of a plurality of UHF channels comprises a variable capacitor 85 comprising two electrodes 285, 286, the capacitance between which is varied by rotation of a shaft 296 carrying the rotor 295 constructed either of metal or of di-electric material, the rotor shape being so designed as to give a linear relation between frequency and rotation of the shaft 296. The plates 285, 286 comprise contact portions 82 84 which co-operate with movable contacts through which switchable tuning elements are connected as indicated in Fig. 3. As shown in Fig. 3, the shaft 296 is provided with a short extension having an obliquely cut end against which rests the portion of spring metal 311 which serves as a coupling member to the capacitor 85. During rotation of the shaft 296 the position of the portion 311 is varied by virtue of the obliquely cut end of the shaft 296 and hence its coupling to the capacitor 85 is varied. Figs. 9 and 10 illustrate alternative forms of the capacitors mounted between the tuning elements shown attached to the movable contacts upon the discs 91 and 97. In Fig. 9, a di-electric tube 275 carries two ring-shaped coatings 276, 277, the capacitance between which is varied by movement of a metal screw 278. In Fig. 10 the capacitance is varied by movement of the screw 274 whereby its distance is varied from the disc 97. Reference has been directed by the Comptroller to Specifications 720,381 and 735,328, [Group XL (c)]
Patent GB-891638-A (GB)
Title: Improvements in the production of chloralkyl esters of acrylic acid and its substitution products
Inventor: BARON HUBERTUS
IPC: C08F20/28
Filed: 1960-04-01
Abstract: 891,638. Chloralkyl esters of acrylic acid. BADISCHE ANILIN- & SODA-FABRIK A.G. April 1, 1960 [April 4, 1959], No. 11524/60. Class 2 (3). The invention comprises (4-chlor-n-butoxy)-nbutyl acrylate, 2,2-dimethyl-3-chlorpropyl acrylate. 2-(tris-chlormethyl)-ethyl acrylate and 2- chlorethoxyethyl acrylate. Chloralkyl esters of acrylate acid are made by reacting an acrylic acid chloride, which may be substituted in alpha- or beta-position by halogen or an alkyl radical containing 1 to 4 carbon atoms, with a cyclic ether containing only carbon and oxygen in a ring of at least 4 atoms, in the presence of an acidreacting catalyst. Suitable cyclic ethers are trimethylene oxide, 3,3-dimethyl-trimethyleneoxide, 3,3 - bis - (chlormethyl) - oxa - cyclobutane, tetrahydrofurane, tetrahydropyran, dihydropyran, and dioxane. Besides acrylic acid chloride, α-chlor- and α-brom-acrylic acid chlorides, methacrylic acid chloride, crotonic acid chloride and #-methylcrotonic acid chloride are mentioned. Acid reacting catalysts are aluminium chloride, tin tetrachloride, sulphuric acid or concentrated hydrochloric acid. The reaction proceeds to completion in the temperature range between 20‹C. and 150‹C. In order to avoid premature polymerization, it is advantageous to discontinue the reaction when a 50% to 70% conversion is attained and to distil off and re-use unreacted material. Continuous operation may be employed
Patent GB-612732-A (GB)
Title: Improvements in moulded pulp boxes or packs for fragile articles
IPC: B65D85/42
Filed: 1946-04-15
Abstract: 612,732. Boxes. MAPES CONSOLIDATED MANUFACTURING CO. April 15, 1946, No. 11533. Convention date, Nov. 19, 1945. [Class 18] A box or pack of moulded pulp comprises a traylike cover section 11 hinged to a body section 10 having spaced cavities 14 for lamp bulbs or other fragile articles, each cavity having a depressed rib 17 for strengthening the wall of the cavity and providing a limb for engagement with any surface on which the box may be placed. The cover 11 has a panel 25 to receive a label or printed matter, and the underside thereof, together with the side and end walls 22, 23, are adapted to engage the bulbs, to hold them in position when the box is closed. The cavities 14 are connected by communicating channels 18, 19, 20.
Patent GB-1390768-A (GB)
Title: Centrifugal separator
IPC: B04B11/02
Filed: 1971-04-27
Abstract: 1390768 Centrifugal separators GLACIER METAL CO Ltd 26 April 1972 [27 April 1971 2 Sept 1971] 11569/71 and 40904/71 Heading B2P  A centrifuge for separating lighter and heavier fluids e.g. oil and water in a cooling system of an i.c. engine, Fig. 3 (not shown), comprises a hollow rotor 11, Fig. 1, having a separation chamber 24 with an annular plate 27 extending transversely in relation to the axis of rotation at one end of the chamber and outlets 31, 33, for the fluids adjacent the outer and inner edges of the plate 27. The rotor 11 is mounted in a stationary housing 10 and is rotatably driven about a stationary spindle 12 by pressure fluid which leaves a drive chamber 13 through tangentially directed nozzles 14 and which is supplied to the chamber 13 via passages 16, 18. 15. The mixture of lighter and heavier fluids is fed via passages 19, 21, 22 into a reception chamber 23 from which it enters the separation chamber 24 through apertures 26 in a separating disc 25. The plate 27 is fast with a sleeve 28 which rotates on the spindle 12 and carries a conical member 36 so that the inner wall of the chamber 24 converges downwardly towards the axis of rotation thereby assisting separation. Alternatively, the outer wall of the chamber is conical. The plate defines with the outer wall 29 of the rotor a gap 31 through which the heavier fluid passes downwardly from the chamber 24 into a region 32 of the rotor interior and is discharged into a chamber 41 in the housing 10 either through an axial passage 39 or, in an alternative embodiment, through tangentially directed openings 43 (in which case it assists in rotating the rotor 11). The lighter fluid is collected by the plate 27 and discharges through passages 33, 34, 35. The outer wall 29 of the rotor is formed with annular troughs 37, 38 for collection of solid particles. An annular baffle 44 prevents solids from blocking the openings 43. In another embodiment, Fig. 2, the lighter and heavier fluids are evacuated from the chamber 24 and the region 32 respectively through passages 46 and 47, which are controlled by a slide valve 48 having a passage 49 for leading either of the fluids into the passage 33 for subsequent delivery. -The slide valve 48 is biassed by a spring 51 in one position in which the passages 47, 49 are in communication but can move to the other position, in which passages 46 and 49 communicate, against the spring force in response to a change in the pressure of the incoming fluid mixture to be separated.
Patent GB-1504041-A (GB)
Title: 1-aryl-5-alkylidene-2,4-dioxo-imidazolidines
IPC: C07C273/18
Filed: 1975-03-20
Abstract: 1504041 1 - Aryl - 5 - alkylidene - 2,4 - dioxoimidazolidines BAYER AG 20 March 1975 [26 March 1974] 11645/75 Heading C2C The invention comprises compounds (I) where R 1  is aryl optionally substituted by one or more of halogen, C 1-6  alkyl, C 5-6  cycloalkyl, C 1-2  haloalkyl, C 1-6  alkoxy, C 1-6  alkylthio, alkylsulphinyl or alkylsulphonyl, C 1-4  mono- or di- (C 1-4  alkyl) or diaryl-aminoalkyl, C 1-6  acylamino, cyclic amino having 5 or 6 ring members and optionally containing one or more further heteroatoms as ring members, cyano, nitro, acetyl, aldehyde, phenyl, phenoxy, halophenoxy, nitrophenoxy, phenylthio, benzyl, anilino, benzylsulphonyl, phenylsulphonyl or halophenylsulphonyl; R<SP>2</SP> is hydrogen or C 1-6  alkyl and their preparation by reacting a compound R 1 NH.CO.NH.CO.CHX.CHX.R 2  (II), where X is Cl or Br, with an alkali metal hydroxide in a solvent at between 20‹ C. and the boiling point of the solvent, the compound (II) being optionally prepared by reacting an isocyanate OCN.CO.CHX.CHX.R 2  with an amine R 1 NH 2  at - 20‹ to + 50‹ C. in a solvent. Herbicidal, fungicidal, bactericidal, nematocidal and coccidiostatic compositions comprise the compounds of the invention together with suitable carriers or diluents.
Patent GB-680039-A (GB)
Title: Improvements in or relating to tools for deforming metal seals
IPC: B65B13/34
Filed: 1950-05-10
Abstract: 680,039. Pliers. BOABANDS, Ltd., and BALLANTYNE, L. H. May 10, 1951 [May 10, 1950], No. 11679/50. Class 61 (ii). Sealing pliers comprise two angularly movable arms 10 and 11 and a pair of pivoted jaws 18 which are rocked into open or closed position by movement of a pin 17 in guides on the arm 10 which is provided with a cam track with which co-operates a cam follower provided on the arm 11. The arm 10 opens out at one end into two parallel flat heads 12 each recessed to receive cam plates 13 and 14 which provide a cam track 15 between them. Guide slots 16 for the ends of the pin 17 are provided in the heads 12 the jaws 18 being pivoted to the heads at 19 and each jaw being connected to the pin by a pivoted link 24. The arm 11 has a cross head 21 one end of which is pivoted to the pin 17, the other end having mounted thereon a pair of freely rotatable cam followers 22 which run along the cam tracks 15. The shape of the cam tracks is such that greater angular movement of the arms is required at the ends of the angular range than at the centre of the range for the same relative movement of the jaws.
Patent GB-1451715-A (GB)
Title: Image-receiving material for silver salt diffusion transfer process
IPC: C08F20/00
Filed: 1974-03-15
Abstract: 1451715 Photographic silver salt diffusion transfer image-receiving material FUJI PHOTO FILM CO Ltd and HYDRON EUROPE Inc 15 March 1974 [20 March 1973] 11745/74 Heading G2C  A photographic silver salt diffusion transfer image-receiving material bears on a support (I) a layer of at least one water-insoluble, hydrophilic, water- and alkali-permeable homopolymer, copolymer or graft polymer of a monoacrylate or monomethacrylate of a polyhyridic alcohol containing a compound which improves the property of the silver image formed in layer (II) and which is diffusible into layer (II) upon contact with alkali in a processing liquid and (II) a binder layer containing silver deposition nuclei on layer (I). The hydrophilic homopolymers and copolymers may have a molecular weight greater than 10,000 and the hydrophilic polymer in layer (I) may be a homopolymer of 2-hydroxyethyl methacrylate or 3-hydroxypropyl methacrylate, a copolymer of 2-hydroxyethyl methacrylate and acrylamide, 2-hydroxyethyl-acrylate and 2-hydroxyethylmethacrylate, 2-hydroxyethyl methacrylate and methyl methacrylate or 2-hydroxyethyl methacrylate and n-butyl methacrylate or a graft polymer of hydroxyethyl cellulose and 2-hydroxyethyl methacrylate or gelatine and 2-hydroxyethyl methacrylate. The compound in layer (I) may be a mercapto, imino or iodine compound and may be 2-imidazolidinethione (Examples 1 and 2), 2-mercaptoimidazole (Example 3), 1-methyl-2-mercaptoimidazole (Example 4), 4-phenyl-3-mercapto-4H-1,2, 4-triazole (Example 5), 5-propyl-2-mercaptobenzimidazole (Example 6), 1-phenyl-5-mercaptotetrazole (Example 7), 6-lauryl-4-mercapto-1, 3, 3a, 7-tetraazaindene (Example 8), 5-nitrobenzimidazole (Example 9) or 6-bromobenzimidazole (Example 10). Many other examples of suitable compounds are listed. The binder in layer (II) may be a hydrophilic organic polymer or an inorganic colloid e.g. colloidal silica or alumina.
Patent GB-508810-A (GB)
Title: Improvements in or relating to electric immersion heaters
IPC: H05B3/78
Filed: 1938-04-20
Abstract: 508,810. Electric immersion heaters. LOW ELECTRICS, Ltd.; A., and LOW, D. W, April 20, 1938, No. 11809. [Class 39 (iii)] An immersion heater for insertion in an open. topped tank consists of an electric heating element 4 mounted in a perforated metal tube 1. A connecting box 5 is unitary with the tube and a deformable copper tube 6, enclosing conductors 9, passes through a water-tight gland 7 and is led up the wall of the tank to a housing for a thermostatic switch disposed remotely from the tank. A capillary tube 11 mounted in brackets 12 on the tube 1 holds liquid which expands when the heater is operated and is connected to a bellows in the thermostat box. A circuit-breaking switch is operatively connected with the bellows.
Patent GB-1031399-A (GB)
Title: Frequency converter
IPC: H03B19/14
Filed: 1965-03-19
Abstract: 1,031,399. Harmonics-producing oscillator. SANDERS ASSOCIATES Inc. March 19, 1965 [March 20, 1964], No. 11861/65. Heading H3T. An oscillator-frequencymultiplier comprises a transistor oscillator having a feedback circuit providing a regenerative feedback signal to sustain oscillation, a non-linear capacitance across the oscillator output between at least two of the base, emitter or collector elements and an output filter circuit arranged to block the fundamental frequency of oscillation and to pass a desired harmonic of the fundamental frequency. In Fig. 1, the oscillator comprises transistor 20, having a tuned collector circuit, an emitter inductor by-passed by a capacitor 26 and a capacitor by-passed base resistance. The voltage divider formed by the emitter-collector capacitance of the transistor and capacitor 26 provides the feedback signal of the oscillator. The non-linear capacitor may be a varactor or the collector-base capacitance of the transistor. A circuit 12 blocks the oscillation frequency and a circuit 14 acts as a low impedance path for the second harmonic to provide a circulating path comprising circuit 14, the capacitance 40 and rejection filter 12. The second harmonic thus beats with the fundamental to provide a strong third harmonic signal which is passed through circuit 16 which resonates at the third harmonic frequency and provideds an impedance matching function, to the load. The filter can be arranged to select other harmonics. Fig. 2 (not shown) illustrates a two transistor oscillator having a tuned common emitter input stage and a common base output stage with the non-linear capacitor connected between collector and base. The feedback path is provided by a crystal.
Patent GB-377232-A (GB)
Title: Improvements in or relating to manifolding books
IPC: B41L1/24
Filed: 1931-04-22
Abstract: 377,232. Manifolding-books. BALLANTYNE, W. H., 111, Hatton Garden, London.-(Appleford Paper Products, Ltd. ; 78, Stirton Street, Hamilton, Ontario, Canada.) April 22, 1931, No. 11947. [Class 16.] A manifolding-book comprises a plurality of bound units for writing in triplicate, each consisting of a sheet provided with a stub bound in the book and normally folded to provide two superposed record leaves, a carbon leaf secured along a margin thereof to part of the folded sheet so as to be removable therewith and carbonized on its underside only, and a second carbon leaf connected to a part of the unit and normally underlying the top leaf. Entries on the top or original leaf are recorded on the uncarbonized back of the lower carbon leaf and on the lower or triplicate leaf. Alternatively, a duplicate record sheet 5 having a stub 6 is provided between a folded carbon sheet 3 which is gummed to the face of the triplicate sheet 1. A " stop " sheet 10 secured to or integral with the back cover 7 is arranged to be swung beneath a manifolding unit while entries are being made upon it, and to cover parts of used units remaining in the book ; the sheet 10 may also serve as a record sheet. The record sheets 1, 4, together with the folded carbon sheet 3, can be removed and used for further entries at a later stage. The carbon sheets are preferably of thin cheap paper with a light coating of carbon, and may be used as a permanent record of all entries. Each carbon sheet is carbonized alternatively on opposite sides to present, when folded and inserted, carbonized surfaces to the upper faces only of the underlying record sheets in a unit ; the free end of the carbon sheet is not carbonized, to facilitate handling. When it is desired to remove each unit as a whole a single stub is provided to which the record and carbon sheets are connected. Perforation or other weakening lines facilitate the separation of the top or original sheets from the bottom or triplicate sheets and the latter from their stubs.
Patent GB-542672-A (GB)
Title: A yarn testing machine
IPC: G01N33/36
Filed: 1940-07-20
Abstract: 542,672. Machine for testing thickness of yarns. FAIRBAIRN LAWSON COMBE BARBOUR, Ltd., and BEE ,J. R. July 20, 1940, No. 11959. Addition to 523,504. [Class 120 (iii)] [Also in Group XIX] The machine of the parent Specification, having means for registering and recording the number of thick and thin portions in a length of yarn, is provided with means for registering the length of each such thick or thin portion as it passes through the machine. A strip of paper is passed around a drum m<SP>2</SP> at a speed dependent upon the speed of the test yarn through the machine, and inking rollers p<SP>3</SP> are carried upon levers p<SP>1</SP>, p<SP>2</SP> so as to engage the paper. The levers p<SP>1</SP>, p<SP>2</SP> are actuated by extensions l<SP>9</SP>, l<SP>10</SP> of the levers l<SP>1</SP>, l<SP>3</SP> for operating the counting drums k, k<SP>1</SP>. When the indicating disc e or f is rotated by engagement therewith of a thin or thick length of yarn, the corresponding lever l<SP>1</SP>, l<SP>2</SP> is raised, arid the corresponding inking roller p<SP>3</SP> is brought into engagement with the paper strip to register the length of the thin or thick portion.
Patent GB-891683-A (GB)
Title: Heat exchangers and matrices therefor
IPC: F28D9/00
Filed: 1960-04-05
Abstract: 891,683. Plate-type heat exchangers. ORENDA ENGINES Ltd. April 5, 1960 [May 4, 1959], No. 12003/60. Class 64(3) A heat exchanger matrix comprises a plurality of similar heat transfer plates (Fig. 2) each of which has opposed surfaces 20, 21, all of said surfaces being similar and each consisting of part of a surface of revolution of a planar curve about an axis 22 outside the curve but in the plane thereof, the curve being convex towards the axis; and means holding the plates in similar orientations and in spaced apart relation to form a stack so that fluid flow passages are defined between adjacent plates. Fig. 4 shows a heat exchanger in which the plates extend through an angle of approximately 300 degrees around the axis so that the assembly of plates forms an incomplete ring structure 41 to which manifolds 44, 45 for one fluid and 42, 43 for another fluid are attached. Ribs 35, said to produce eddy currents, may extend from the plate edges for a short distance inwardly in each of the fluid passages.
Patent GB-1195130-A (GB)
Title: Hydraulically or Pneumatically Operated Grab.
Inventor: KLOPPING HEIN LOUIS
IPC: B66C3/16
Filed: 1968-03-12
Abstract: 1,195,130. Fluid-operated grabs. DEMAGZUG G.m.b.H. 12 March, 1968 [15 June, 1967], No. 12042/68. Heading B8H. A grab which is operated by a plurality of hydraulic or pneumatic rams 14, 15, Fig. 1, has guiding links 8 which are pivoted to a support 1 and detachably pivoted to the baseplates of the grab-shells. Holes 13 are provided in links 9 so that the attachment points of the rams and the links to the shells may be adjusted. The links are U-shaped and partially enclose the rams. Pivoted guard plates 21 are provided. The upper pivots of the guiding links may be other than coaxial with the pivots of the grabshells. The opening movements of the shells may be synchronized by toothed sectors or link mechanism.
Patent GB-1372295-A (GB)
Title: Dispersible inorganic pigments
IPC: C08K9/06
Filed: 1972-03-15
Abstract: 1372295 Surface treated pigments BAYER AG 15 March 1972 [19 March 1971] 12043/72 Headings C1A and C1N A pigment is surface treated with a hydroxylcontaining 1,3-dioxa-2-sila-cyclohexane, preferably of formula where R is H, alkyl, cycloalkyl, alkoxyalkyl, or aryl, R1 and R2 are individually alkyl or cycloalkyl, n is 0 or 1, and the alkyl radicals of R, R1 and R2 each contain 1-6 carbon atoms. The pigment is preferably rutile TiO2, obtained by the sulphate or chloride process, optionally wet coated w.th TiO2, SiO2, or Al2O3. Treatment of iron and chromium oxides is also referred to. The treating agent may be sprayed on to the pigment before or during final grinding, e.g. by jet mixing with steam.