baber/WOPTO huggingface dataset:
Patent GB-1439666-A (GB)
Title: Centrifugal pump for processing liquids containing abrasive  constituents more particularly a sand pump or a waste-water  pump
IPC: F04D29/22
Filed: 1973-09-05
Abstract: 1439666 Stuffing box substitutes NERATOOM BV 5 Sept 1973 41855/73 Heading F2B Sealing areas between the suction and delivery sides of a centrifugal pump impeller pumping liquids with abrasive consituents-, are shielded from the abrasive material by centrifugal means operating on liquid leaking through the areas, to eject the material in that liquid towards the delivery side. Leakage paths are formed between sleeves 11, 12 on the housing, Fig. 2, and sleeves 9, 10 on the impeller, the leakage liquid being set into rotation in annular channels 14, 21 which communicate with radial ducts 15, 22 through which the abrasives are ejected to the delivery side. In a more elaborate arrangement, Fig. 3, additional radial ducts 31, 39 open out at the periphery of the impeller and by-pass passages 32, 41 are provided in the housing sleeve portion 24, 34. The free axial end of the impeller sleeve 23 may have serrations, Figs. 4-6 (not shown) to give a preliminary swirling motion to fluid entering the leakage path 25. The seals may serve as bearings in the Fig. 3 arrangement.
Patent GB-1259890-A (GB)
Title: Cleaning method and apparatus for electrostatic copying machines
IPC: G03G21/00
Filed: 1969-08-25
Abstract: 1,259,890. Cleaning electrostatic surfaces. RANK XEROX Ltd. Aug. 25, 1969 [Aug. 26, 1968(2)], No.42150/69. Heading G2H. An apparatus for removing toner particles 11 from an electrostatic surface 12 comprises a magnetic brush apparatus 20 carrying magnetic cleaning material 28, e.g., alcoholized iron, carboxal iron, steel, nickel-iron alloys, magnetic oxides, and magnetic ferrites which removes the toner particles by triboelectric attraction, which removal is assisted by applying a D. C. potential 30 to cylinder 22. A corona device 35 changes the surface 12 with the same polarity as the toner. A bias roller 40 engaged by a wiper 50, continuously removes toner from the apparatus 20. In another embodiment, Fig. 2, toner is removed by a fabric cleaning assembly 107 having a cylindrical member 111 carrying fabric cleaning fibres 119 and biased by a D. C. voltage source 133. Cleaning materials may be, for example, acrylic velvet, polypropylene fabric, rayon, mohair; or cotton. A bias roller 150, rotated oppositely to the member 111, is biased by D. C. voltage source 154. An adjustable blade member 179 removes toner particles from the roller 150 for collection in a tray 193 from where they are removed by an auger 195 for reuse. In a further embodiment, Fig. 6 (not shown) an assembly (207) has segments (211) to which different voltages (133 or 275) are applied to improve control in the removal of toner particles.
Patent GB-1445096-A (GB)
Title: Cigarette making machines
IPC: A24C5/18
Filed: 1972-09-12
Abstract: 1445096 Cigarette making machine MOLINS Ltd 11 Sept 1973 [12 Sept 1972] 42358/72 Heading A2C In a cigarette making machine which includes a trimmer arranged to trim away part o the tobacco stream being fed to the machine tobacco discarded from the trimmer is returned to the tobacco stream forming part of the machine. As shown a tobacco stream is directed through a channel 2 onto an air pervious band 4 where it is held onto the band by means of suction applied by suction chamber 6. The stream is carried past the trimmer 8 which removes part of the tobacco stream. The removed tobacco is delivered through pipes 12, 14 back to the channel 2 where it forms that part of the tobacco stream which constitutes the initial layer on the band 4. The position of the trimmer 8 is controlled by an air cell 16 operating through a mechanical amplifier as described in U.K. Specification 929338. The amplifier may be connected directly to the suction chamber while the machine is being started up to move the trimmer closer to the band.
Patent GB-1444139-A (GB)
Title: Filler alloys for fluxless brazing of aluminum or aluminum alloys
IPC: C22C5/06
Filed: 1973-09-10
Abstract: 1444139 Aluminium brazing alloys UNITED STATES ENERGY RESEARCH & DEVELOPMENT ADMINISTRATION 10 Sept 1973 [4 Oct 1972] 42379/73 Heading C7A [Also in Division B3] A filter alloy for fluxless brazing of aluminium or aluminium alloys consists of by weight one of:- (i) 15 to 30% germanium, 1 to 10% yttrium balance aluminium. (ii) 17 to 30% indium, 1 to 10% yttrium balance aluminium. (iii) 58 to 70% silver, 10 to 13% indium, 1 to 5% yttrium and 20 to 26% aluminium with the proportion Ag/Al in the range 2À3 and 2À5. (iv) 35 to 40% silver, 39 to 47% germanium, I to 5% yttrium and 13 to 16% aluminium with the proportion Ag/Al in the range 2À3 to 2À5. Each of the above alloys is particularly suited to vacuum brazing to form composites of at least two components each component being former of Ac or Al based alloy.
Patent GB-1524998-A (GB)
Title: Apparatus for the detection of either the movement of any individual object or of a number of obejects
IPC: B65H63/032
Filed: 1975-10-16
Abstract: 1524998 Thread detectors in looms S-A O RYDBORN 16 Oct 1975 [2 Dec 1974] 42517/75 Heading DIE [Also in Division G4] For detecting motion of a single object e.g. a thread or strip in a loom, or of a plurality of objects, e.g. two, in a selected one or more positions, a plurality of devices PZT1-PZT8 (10, 13), e.g. piezo electric devices, are arranged at the positions and each generates an electrical signal when motion of an object particular thereto is sensed, the devices PZT1-PZT8 being connected in two groups to respective switching devices 5 and 6, and signal indication devices 11, 12 and 14 as shown. In operation, for detecting motion of a single object, the devices 5 and 6 are operated sequentially and alternately such that the devices PZT1, PZT3, PZT5, PZT7 are sequentially connected in series to device 11, and the devices PZT2, PZT4, PZT6, PZT8 are sequentially connected in series to device 14, the ones not currently connected to devices 11 and 12 being connected to common signal indication device 12. If a thread occurs in detector PZTS, a signal will occur in device 11 after the third switching step of device 5, and the switching sequence will cease, the devices 11 and 14 are then coupled to each other (at 15) and the devices 11, 12 and 14 are coupled to a trigger 9 and if the signal in device PZT5 then ceases or if a signal occurs in device 12, the trigger 9 will operate alarm 17 to shut down the apparatus, e.g. a loom. For detecting motion of two threads e.g. in devices PZT5 and PZT6, the devices 5 and 6 are operated simultaneously, and a signal from device 11 after the third switching sequence causes the sequence to stop. Provided signals occur in both device 11 and 14, and not in device 12, trigger 9 will not trigger alarm 17.
Patent GB-1312175-A (GB)
Title: Process for preparing a 7-acylamino-3-acyloxymethyl delta3
IPC: C07D501/06
Filed: 1971-09-13
Abstract: 1312175 Preparation of cephalosporins ELI LILLY & CO 13 Sept 1971 [14 Sept 1970] 42614/71 Heading C2A A process for preparing a 7-acylamido-3-acyloxymethyl #<SP>3</SP>-cephalosporin sulphoxide ester comprises reacting a 7-acylamido #<SP>3</SP>-desacetylcephalosporin sulphoxide ester with the anhydride of a saturated carboxylic acid under acid conditions. In such a process the 7-acylamido #<SP>3</SP>-desacetylcephalosporin sulphoxide ester may have the Formula I wherein R is the residue of the 7-acylamido group and R 1  is the residue of an ester protecting group. The anhydride has the Formula II wherein R 2  is selected from H, C 1  to C 7  alkyl and cycloalkyl having the Formula III wherein n is zero or an integer from 1 to 4 and R 3  is C 1  to C 3  alkylene. The 7-acyl group may be selected from the group IV where n is zero or an integer from 1 to 6 and R may be aryl containing 6-14 carbon atoms, cycloalkyl containing 4 to 8 carbon atoms and heterocyclic groups wherein the hetero atom is selected from O, S, N and combinations thereof, and substituted derivatives thereof or the group V wherein R 3  is C 1  to C 8  alkyl, C 2  to C 8  alkenyl and substituted derivatives thereof, or a group VI wherein n is 0 or an integer from 1 to 5, X is O or S and R 4  is selected from the group consisting of R 2 , C 2 -C 8  alkenyl and substituted C 2  to C 8  alkenyl derivatives or a group VII where Y may be amino, protected amino, hydroxy, C 1 -C 3  alkoxy, carboxyl and C 1 -C 3  alkanoyloxy or the acyl group may be phenyl- α,α-dimethylacetyl and substituted derivatives thereof.
Patent GB-1310779-A (GB)
Title: N-pyridylalkyl-beta-alkoxy-beta-trifluoromethylphenalkylamines
IPC: C07D213/38
Filed: 1971-09-14
Abstract: 1310779 Tririluoromethylphenylalkanolamin ethers SMITH KLINE & FRENCH LABORATORIES 14 Sept 1971 [15 Sept 1970] 42679/71 Heading C2C Novel compounds of the Formula (I): wherein R is C 1-3  alkyl, R 1  is H or CH 3 , R 2  is H or C 1-3  alkyl, A is a straight or branched C 1-3  alkylene chain, and pharmaceutically acceptable acid addition salts, may be obtained by the reaction: in which X is halogen. Acid addition salts may be obtained by known methods and racemic mixes may be separated into d and l isomers. Pharmaceutical compositions having anorectic activity comprise compounds of Formula (I) together with a pharmaceutical carrier, preferably in forms suitable for administration orally or parenterally.
Patent GB-1239840-A (GB)
Title: Apparatus for stretching and smoothing a natural tobacco leaf
IPC: A24B5/14
Filed: 1969-08-28
Abstract: 1,239,840. Smoothing, stretching and stripping tobacco leaves. ARENCO A.B. 28 Aug., 1969 [9 Sept., 1968; 4 Nov., 1968], No. 42871/69. Heading A2C. [Also in Division B8] An apparatus for stretching and smoothing a natural tobacco leaf 3, e.g. prior to stripping, comprises an air permeable leaf supporting conveyer belt 1 and retaining members 8, 32 co-operating therewith to keep a narrow zone 35 of the leaf 3 fixed relative to the belt 1, air flow members 17, 18, 19, 33 disposed above the belt 1 to direct an air stream from the central vein of the leaf 3 towards its edges, and a suction device 7 disposed below the top run of the belt 1 to retain the leaf 3 on the belt 1, the air stream being applied first to smooth and stretch the leaf 3 and then, at a moment preceding or immediately following termination of the air supply, suction is applied by the device 7 to retain the smoothed leaf 3. The apparatus, Fig. 1, comprises three stations A, B, C, the belt 1 being advanced intermittently to transfer the leaf 3 from one station to the next. Within the stations A, C, vacuum boxes 5, 11 underlie the upper run of the belt 1 to provide leaf-retaining suction. The belt 1 is formed from at least transversely stretchable material, such as perforated rubber or woven material, and includes edge holding means 13 to which guide pins 14 are secured, and pins 14 running in grooves 15 of two guide rails 16. The grooves 15 run parallel to each other at a first distance apart through stations A, B, whereas at station C this distance is increased causing stretching of the belt 1 and hence further stretching of the stretched and smoothed leaf 3. Section B, Fig. 4, includes a suction box 17 which carries suction tubes 18, 19, a rubber pressure rail acting as the uppermost retaining member 32, and is mounted to a tie rod 22 for a reciprocation in a vertical direction by a cam driven lever mechanism, the box 17 being raised when conveying the leaf 3 into or out of the station B and lowered to clamp the central vein 35 of the leaf 3 during the smoothing operation. Throttle valves 10, 20, 21 are provided in pipe 9 and tubes 18, 19 to control the suction applied. Openings 33, provided in the top of the box 17, permit ingress of air, flowing in the directions shown by the arrows, when the throttles 20, 21 are opened. Where the central vein 35 is to be cut out, the station C may be dispensed with and a non-stretchable airpermeable belt 1 may be employed, e.g. a perforated steel band. In another embodiment, Figs. 7, 8, the leaf 3 is deposited with its central vein 35 over a line of suction holes 38 formed in a table 37 and is then conveyed on to a narrow conveyer belt 46 overlaid by two narrow pressure belts 47, 48 that clamp the central vein 35. Compressed air is then directed through openings 55 in tables 46, 51 to smooth and stretch the leaf 3. The leaf 3 is then transported on two suction-backed air-permeable conveyers 56, 57 past circular knives 61, 62 and a co-operating feeder wheel 63 to cut out the central vein 35.
Patent GB-1204144-A (GB)
Title: Improvements in and relating to a reading apparatus
Inventor: POULSEN FIND
IPC: G09B17/04
Filed: 1967-09-21
Abstract: 1,204,144. Copy-holders. F. POULSEN. 21 Sept., 1967 [23 Sept., 1966], No. 43041/67. Heading B6W. [Also in Division G5] Apparatus for improving reading ability comprises an opening 23, a window 4, and a transparent mirror 26 through which reading matter arranged in lines on a tape passing the opening can be seen when a lamp 10 is energized, and a variable-speed, reversible electric motor 9 which drives via gearing a paper tape advance roller 11. The lamp may be continuously or intermittently energized. The mirror is placed so as to reflect the image of a person viewing along a line passing through the opening and window within the apparatus. The motor and the lamp are controlled via circuitry (not shown) by switches 5-8 and a motor speed regulator switch 12. When used as a tachistoscope the switches 5, 6 are moved to their " on " positions, and a reading speed (i.e. speed of tape advance) is selected by the switch 12. For each revolution of the roller 11 a star wheel connected therewith intermittently closes a microswitch in the circuit of the lamp 10. Thus the tape is advanced continuously and illuminated intermittently. When used as a reading accelerator the switch 7 is moved to " ACC " and the lamp is then continuously energized. For use as a reading pacer a plate is positioned in slot 22, motor drive is reversed by switch 8 and the plate is caused to pass over a book or like placed in front of the apparatus. The tape may be carried by spools, and the transparent mirror may be convex or parabolic. A knob 14 is provided for manual rotation of the roller 11. When the apparatus is used as a reading pacer a holder for a book may be provided.
Patent GB-1038979-A (GB)
Title: Improvements in mountings for light sensitive elements
Inventor: BALCH CHESTER ROYCE
IPC: H01H47/24
Filed: 1962-11-09
Abstract: 1,038,979. Photoconductive cells. ROYCE THOMPSON ELECTRIC Ltd. Nov. 7, 1963 [Nov. 9, 1962], No. 52349/62. Heading H1K. [Also in Division G1] An enclosure for a photoconductive cell comprises a substantially conical light transmitting cap disconnectably but weather-tightly sealed at its peripheral edge to a base closure member through which leads extend to the enclosed cell. In an embodiment, Fig. 1, the light-sensitive element is a cadmium sulphide cell 15 mounted in a recess in resilient base 8. The edge of the base is sprung over the silicone grease smeared peripheral flange 7 of conical glass or methylmethacrylate cap 5 to provide a weather-tight seal. The cap, which may be transparent or frosted, is coloured to act as a light filter and to deter birds from alighting on it. Half of it is preferably blocked out by an internal coating 17 to shield the cell from direct sunlight. Electrical connections 16 extend through an axial extension 14 of the base designed to grip the walls of a hole in which it is housed. In operation the cell actuates a relay to control the current supply to street lamps.
Patent GB-964007-A (GB)
Title: Method and apparatus for erasing magnetic recordings
IPC: G11B5/024
Filed: 1960-12-16
Abstract: 964,007. Magnetic tape bulk erasers. GEVAERT PHOTO-PRODUCTEN N.V. Dec. 16, 1960 [Dec. 16, 1959], No. 43411/60. Heading G5R. Wound cores providing a number of open magnetic circuits are fed with non-symmetrically connected multiphase alternating currents to generate an assymmetrical erasing field of random orientation and intensity. A six-core star formation, Fig. 1 is connected to a three-phase supply with phasing capacitors in each supply lead, the inductive coupling between adjacent cores further contributing to the assymmetry, and a reel of tape or sound-film is moved linearly across the gaps, without rotation. In other embodiments, described generally but not illustrated, a single-phase supply is connected to some windings and other windings, connected to capacitors are fed solely by mutual coupling to the directly energized windings. U.S.A. Specifications 2,481,392, 2,826,642, 2,826,643 and German Specification 972,166 are referred to.
Patent GB-1472146-A (GB)
Title: Milking machines
IPC: A01J5/017
Filed: 1975-10-23
Abstract: 1472146 Milking machines DEC INTERNATIONAL INC 23 Oct 1975 [6 Dec 1974] 43480/75 Heading AIM The teat cups 16 of a milking machine are suspended by a chain 86 from the distal end of a linkwork 24 which is pivoted to a vertically movable column 28 slidably mounted on a fixed column 26. The linkage comprises links 60, 62, 64, 66 pivotally connected end-to-end for movement in a horizontal plane. During milking, when the milk flow drops below a predetermined minimum, a sensor energises a solenoid valve 94, shifting a valve member 126 to the right to direct air under pressure through a hose 46 to a cylinder 40 to raise a piston rod 42. Simultaneously pressure is directed to a chamber 121 of a milk valve 96, collapsing a rubber hose 118 and thus closing the milk line to facilitate release of the teat cups from the cow. The piston rod 42 acts on a chain 48 which passes through apertures in links 62, 64 and is fast with link 66 so that raising of the piston rod causes horizontal pivotal movement of the linkwork and withdrawal of the teat cups. As the piston rod rises a bracket 54 thereon engages a catch bar 90 on the column 28 causing the column to rise with the piston rod and raise the teat cups. The column 28 is connected to a counterweight 34 by a cord passing over a pulley 30 to facilitate vertical movement of the column. To begin milking, the solenoid valve 94 is de-energised and the column 28 is pulled down to a desired level and linkwork 24 extended manually.
Patent GB-1191804-A (GB)
Title: Stainless Steel
Inventor: MILLER GEOFFREY PAUL
IPC: C22C38/40
Filed: 1968-09-12
Abstract: 1,191,804. Stainless steels. INTERNATIONAL NICKEL Ltd. April 24, 1969 [Sept. 12, 19681, No.43481/68. Heading C7A. A stainless steel consists, by weight per cent, of:- C 0À03-0À12 Ni 3À5-8 Cr 15-18À5 Mo 0-3 Mn 0-4 Si 0-0À75 Al 0-0À08 N 0À15-0À35 Fe balance (apart from impurities) subject to the provisos that (a) 2Ni + Cr + ¢Mo + 2Mn + 15N +22C = 34-42, and (b) Ni + 30(C + N) + ¢Mn # Cr + 1À5Si + Mo -10. The steel may be annealed at 1000‹C-1150‹C. Reference is made to solution treating at 1100‹C. and water quenching. Uses Self-tapping screws of which the head is formed by upsetting and the thread is formed by cold thread-rolling; and razor blades.
Patent GB-1304427-A (GB)
IPC: B60K15/00
Filed: 1970-09-11
Abstract: 1304427 Fluid logic and switching circuit; Spray carburetters BENDIX CORP 11 Sept 1970 [15 Sept 1969] 43655/70 Headings F1P and F1B A fluidic amplifier 10, Fig.1 having its supply inlet connected to the delivery of a liquid fuel pump 12, an output 36 connected to the fuel injection nozzle 26 of an I. C. engine, control inputs 32, 33 connected to the air intake manifold 28 has a second output 34 through which recess fuel is returned to a tank 24, via a line 24 in series with a chamber forming the casing of an injector the nozzle 24 of which also receives fuel from the pump 12 and entrains said excess fuel and returns it to the tank with sufficient momentum to overcome inertia forces induced by velocity changes in a vehicle driven by the I. C. engine.
Patent GB-961626-A (GB)
Title: A process for preparing flaked fruit and vegetable products
Inventor: ROBERTS ROBERT LORENCE
IPC: A23L19/00
Filed: 1962-05-14
Abstract: Fruit and vegetable flakes are formed from the dried product containing less than 5% moisture and 10% moisture respectively, by grinding the product to 1/2 inch to 1/64 inch diameter particles, warming the particles e.g. by radiant heat to make them pliable, then rolling the particles between rollers e.g. of hardened steel having 0.001 inch clearance to form a flaked product having a compressed but unruptured cellular structure.  The processes involved in preparing the dried product are those well known in the art.
Patent GB-1373820-A (GB)
Title: Gas operated heat engines and heat pumps
IPC: F02G1/04
Filed: 1971-09-24
Abstract: 1373820 Refrigeration S RYDBERG 24 Sept 1971 [25 Sept 1970] 44718/71 Heading F4H [Also in Division F1] In a heat pump or refrigerating engine having at least one master cylinder 1, or pair of master cylinders, each having an associated master piston 2 and at least one auxiliary cylinder 12, or pair of auxiliary cylinders, each having an associated auxiliary piston 13 and connecting lines arranged between the cylinders such that the gas circulates in a system having a gas heater 32 and a gas cooler 33, the or each master cylinder has a larger swept volume than the or each associated auxiliary cylinder and during a working phase an upper auxiliary cylinder chamber 20 in the auxiliary cylinder, or one of the pair of auxiliary cylinders, communicates via the gas heater with an upper master cylinder chamber 10 in the master cylinder, or one of the pair of master cylinders, at the same time as a lower master cylinder chamber 11 in the master cylinder, or the other of the pair of master cylinders, communicates via the gas cooler with a lower auxiliary cylinder chamber 21 in the auxiliary cylinder, or the other of the pair of auxiliary cylinders, and during a heat-exchange phase, immediately after the working phase the upper master cylinder chamber communicates via a first side 41 of a heat exchanger 34 with the lower master cylinder chamber, while at the same time the lower auxiliary cylinder chamber communicates via a second side 42 of the heat exchanger with the upper auxiliary cylinder chamber. The gas flow to and from the respective chambers is controlled by valves which are positively controlled by the crank-shaft 9. Alternatively, the valves 25, 26, 29, 30 and 31 may comprise non-return valves. The valve 29 may be omitted. In a modified form (not shown ) the pump or engine comprises a pair of single acting master cylinders and a pair of single acting auxiliary cylinders associated with a common crank-shaft.
Patent GB-1018449-A (GB)
Title: Process for the production of nitrogenous copolymers of formaldehyde
IPC: C07D233/02
Filed: 1964-11-03
Abstract: Trioxane is copolymerized at 50 DEG  to 150 DEG  C., using a cationically-active catalyst, with 0.5 to 50% of a cyclic nitrogen compound of formula <FORM:1018449/C3/1> in which R2 may be the same or different and is hydrogen, a C1- 6 alkyl, or a C1- 6 haloalkyl and R1 is a C1- 6 alkyl, a C6- 20 aryl or a C6- 20 alkaryl and n is 1, 2, or 3.  Other cyclic compounds containing an oxygen, nitrogen or sulphur atom may also be present.  The catalyst may be a strong mineral acid, a sulphonic acid, a Lewis acid, a boron halide etherate or a halogenous organoaluminium compound.  The copolymerization may take place in bulk, solution or suspension in aliphatic, aromatic or halogenated hydrocarbons.  Specified cyclic nitrogen compounds are 1-3-bis-methanesulphonyl-imadazolidine or -hexahydropyrimidine, 1-3-bis-(2-benzenesulphonyl - imidazoline or hexahydropyrimidine, 1 - 3 - bis - dodecylsulphonyl imidazolidine and 1 - 3 - bistoluenesulphonyl imidazolidine.
Patent GB-1260609-A (GB)
Title: Colour photographic light-sensitive material
IPC: G03C7/26
Filed: 1970-09-22
Abstract: 1,260,609. N - vinyl pyrrolidone - acrylate copolymers. FUJI PHOTO FILM CO. Ltd. 22 Sept., 1970 [22 Sept., 1969], No. 45131/70. Heading C3P. [Also in Divisions C2 and G2] Copoly - N - vinylpyrrolidone/2 - (N - formyl- N - methyl)aminoethyl acrylate (monomer ratio 4 : 6) and copoly - N - vinyl - pyrrolidone/2- (N - acetyl)aminoethyl acrylate (monomer ratio 2 : 8) are made by polymerization of the monomers in the presence of hydrogen peroxide or potassium persulphate.