baber/WOPTO huggingface dataset:
Patent GB-868623-A (GB)
Title: Improvements in liquid dispensing devices
IPC: B67D1/14
Filed: 1958-12-12
Abstract: 868,623. Valves. METROPOLITAN GAS METERS Ltd., and STUDHOLME, R. H. March 7, 1960 [Dec. 12, 1958], No. 40211/58. Class 135. [Also in Group XVIII] A throttle valve fitted in the supply line to the control cock d of a free-piston type dispenser comprises a rubber or like flexible portion g which has at one side a fixed curved abutment r and at its other side a curved part s adjustable by a screw u.
Patent GB-1016954-A (GB)
Title: Production of n-vinylamidines
IPC: C07C257/12
Filed: 1962-10-24
Abstract: Disperse cationic copolymers are prepared by copolymerizing in an aqueous medium acrylic acid esters, or mixtures thereof with acrylonitrile, with quaternary derivatives of N-vinylamides of the formula:- <FORM:1016954/C3/1> wherein R1 represents hydrogen or a hydrocarbon radical and R2 and R3 represent hydrocarbon radicals or jointly represent a C2- 6 alkylene radical linking the two nitrogen atoms to form a 5- to 7-membered heterocyclic ring. In an example 1-vinyl-2,3-dimethylimidazolinium methyl sulphate is copolymerized with a mixture of butyl acrylate and acrylonitrile in the presence of diethyldodecylammonium sulphate, polyvinyl pyrrolidone, hydrogen peroxide and water.  The resulting dispersion is diluted with water and used for sizing paper.ALSO:The invention comprises N-vinylamidines of the formula <FORM:1016954/C2/1> where R1 represents hydrogen or a hydrocarbon radical and R2 and R3 represent hydrocarbon radicals or jointly represent a C2- 6 alkylene radical linking the two nitrogen atoms to form a 5-to-7-membered heterocyclic ring. The above compounds are prepared by reacting amidines of the formula <FORM:1016954/C2/2> with acetylene at elevated temperature and pressure in the presence of vinylating catalysts, e.g. alkali or alkaline earth metals or oxides, hydroxides or alcoholates thereof, or zinc or cadmium salts of organic acids.  The above N-vinylamidines, may be subsequently quaternated, e.g. with dimethyl sulphate, and the quaternary derivatives copolymerized with other unsaturated compounds.ALSO:Paper is sized by treatment with aqueous dispersions of cationic polymers prepared by copolymerizing in an aqueous medium acrylic acid esters, or mixtures thereof with acrylanitrile, with quaternary derivatives of N-vinylamidines of the formula <FORM:1016954/D1-D2/1> wherein R1 represents hydrogen or a hydrocarbon radical and R2 and R3 represent hydrocarbon radicals or jointly represent a C2-6 alkylene radical linking the two nitrogen atoms to form a 5- to 7- membered heterocyclic ring.  In an example unsized paper is sized with a 1% aqueous dispersion of a copolymer prepared by copolymerizing 1-vinyl-2, 3-dimethylimidazolinium methyl sulphate with a mixture of butyl acrylate and acrylanitrile in the presence of diethyldodecylammonium sulphate, polyvinyl pyorolidine, hydrogen peroxide and water.
Patent GB-1184978-A (GB)
Title: Pick-Up Arm for Miniature Record-Players
IPC: G11B3/26
Filed: 1968-08-23
Abstract: 1,184,978. Pick-up arm. THOMSON-CSF. 23 Aug., 1968 [18 March, 1968], No. 40523/68. Heading G5R. A pick-up arm for a portable record player comprises an elongated member 1 pivotally mounted via a rubber sleeve 6 on a spindle 5 and secured by rubber washers 7 and clip 8, a pick-up head 2 carrying a stylus 20 pivotally mounted on an end of member 1 and limited in upward and downward movement by stops 31 and 11 respectively and a preloaded spring secured between a point 32 on the pick-up adjacent its pivot and a bracket 50 integral with spindle 5. The arm is balanced about spindle 5 by counterweight 12 in the absence of the spring which solely provides the contact pressure between the stylus and a record.
Patent GB-1511852-A (GB)
Title: Reconstitutable powders
IPC: A61K47/18
Filed: 1975-09-11
Abstract: 1511852 Reconstitutable powders BEECHAM GROUP Ltd 11 Sept 1975 [18 Sept 1974] 40662/74 Heading A5B A powder, which may be reconstituted into an orally administrable pharmaceutical composition in suspension or dispersion by water addition, comprises fine particles (5-500 microns in size) of a water soluble salt of a water insoluble medicament (an organic therapeutic substance with a free carboxy group) which are partially or wholly coated with a coating agent (10-100% covering of the particle surface), which is insoluble in water and acid, together with a water soluble acidic material (defined as an acid or acid addition salts of an amine or amino acid which when dissolved in water gives a solution of pH<5). Preferred water soluble acid materials are acidic addition salts of naturally occurring α- amino acids e.g. hydrochlorides of glycine, α- glutamic acid or α glutamine. The coating agent is preferably ethyl cellulose. Medicaments may be selected from the Na or K salts of isoxazolyl or esterified α-carboxy penicillins.
Patent GB-1188432-A (GB)
Title: Improvements in or relating to Tape Transports
IPC: G11B15/58
Filed: 1968-08-26
Abstract: 1,188,432. Feeding record tapes. AMPEX CORP. 26 Aug., 1968 [2 Oct., 1967], No. 40685/68. Heading G5R. A tape transport having a buffer chamber 36, 52 between each reel 14, 16 and the magnetic transducer head 18 has a further vacuum chamber 64 adjacent to the capstan 60, such that deflection of the tape into the chamber 64 increases the area of contact between the capstan 60 and the tape, and means for damping transient disturbances in tape speed during acceleration and deceleration, and is arranged so that the path for threading the tape into the transport (Fig. 2) does not include deviations into any of the chambers. As shown, the damping means consists of a V-shaped vacuum, chamber 48. The chamber 64 also is V-shaped, with one side tangential to the capstan 60 which is engaged by a vacuum seal 68 incorporating tape guides 70, 71. A screen (77, Fig. 2) shielding the recording and playback transducers from each other is carried by a hinged member 76 which is automatically retracted for tape loading or unloading. A cleaner 30 acts on the oxide side of the tape.
Patent GB-873857-A (GB)
Title: Improvements in data interpreting apparatus
IPC: F16C1/12
Filed: 1958-12-18
Abstract: 873,857. Selective printing. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 18, 1958 [Dec. 24, 1957], No. 40892/58. Class 100(4) Record controlled wire printers. An interpreter comprises a sensing station 12 for reading information on a first medium, e.g. record cards, a translator 39 and a printing mechanism for producing representations of the data sensed on an intermediate medium, e.g. a tape 41, feeding means to bring the record cards and the tape together at a card printing station 55 where the representations are transferred from the tape 41 to the record card. As shown the sensing station 12 comprises twelve 'brushes 21 on sliding rods 22 mounted on a carriage 23 slidable on a guide rail 24 and reciprocated so the brushes 21 move transversely across all columns on the card. The carriage is driven in either direction by a rack 25 according to whether a left or rightward clutch 26, 27 is engaged. Coupled for similar movement is a wire printing head which, through a conventional ink ribbon forms characters on the tape 41; the particular character formed is determined by movements of a code rod, set up from the translator 39. A control emitter 30 comprising sliding contact 33 and connections to a series of plugs, determines which group of columns on the card is read. After the tape 41 is printed it is advanced into a loop 124 and the first card advanced to a relay station 54 and a second card is read at sens'ng station 12 and the data therein is printed in the tape 41. In the next printing cycle when a third card is at the sensing station the first card is advanced to the printing station 55 and the first representations are fed from the loop 124 to a position above this first card. The first card together with the tape 41 is now rolled through pressure and heat transfer rolls 92, 94 transferring the printed information from the tape to the card. Line-spacing. The printing may be effected' on any line on the card by vertical or downward movement of tape feed rollers 64, 65 secured on shafts 85, 86 axially slidable in the hubs of driving gears 87, 88. This movement is controlled by a twelve-position pluggable control emitter 79 and effected by operation of an " up" " or " down " clutch driving a rack 69 attached to a yoke 68 fixed to the shafts 85, 86. Reversible arrangements. In every alternate line the brushes 21 sense in reverse direction and accordingly the representations are formed from right to left in that section of the tape 41 by the printing mechanism 40. Web feeding. The tape 41 is perforated at one edge only. Specification 729,064 is referred to.
Patent GB-1281353-A (GB)
Title: Distributor pump
IPC: B01L3/00
Filed: 1969-08-15
Abstract: 1281353 Reciprocating pumps MICROMEDIC SYSTEMS Inc 15 Aug 1969 [16 Aug 1968] 40900/69 Heading F1A A pump, e. g. for metering liquids in laboratories, comprises a piston 3 reciprocable in a cylinder 1 in synchronism with a rotary face valve 6 driven by a wheel 72, the cylinder 1, valve 6 and a coupling member 30 being mounted in a casing 37, 38 which is removably mounted by bayonet pins 50, 51 in bayonet slots 53, 54 in a ring 55 pivoted in a frame 59, a releasable locking pin, Fig. 4 (not shown), preventing rotation of the casing in the ring. A spring 34 biases valve member 6 against valve seat 5 to provide sealing when the casing is detached from the frame, additional spring-loading during operation being provided by spring 63 acting through ball 60 and coupling member 30. Valve 6 may be of P. T. F. E. and has grooves 25, 26 for alternately connecting cylinder port 12 to inlet and outlet ports 20 in seat 5, Figs. 2 and 3 (not shown). The grooves 25, 26 may be arranged in the form of a cross, or may be arcuate. Coupling member 30 has sawtooth projections, Figs. 4 and 5 (not shown), for engaging drive pins 70, 71 of wheel 72. The locking pin passes through one of the trunnions supporting ring 55 and is spring-loaded into an axial slot in casing 38, a bevel 69 depressing the pin for entry of the casing into the ring.
Patent GB-1466880-A (GB)
Title: Laminations for electromagnetic devices
IPC: H01F29/14
Filed: 1974-02-21
Abstract: 1466880 Transformers and inductors H HIRST 21 Feb 1974 40902/76 Divided out of 1466879 Heading H1T The subject-matter relates to that of Specification 1,466,879 from which this is divided, the claims being directed to an E-shaped member of the basic shape given in the main Specification with a size defined by 14 mm.#x#64 mm. and to a related set of laminations comprising E and I members.
Patent GB-863181-A (GB)
Title: Improvements in the manufacture of hard candy
Inventor: JOHNSTON PETER WILLIAM GILBEY
IPC: A23G3/02
Filed: 1958-12-19
Abstract: 863,181. Confectionery. BAKER PERKINS Ltd. Dec. 7, 1959 [Dec. 19, 1958], No. 41140/58. Class 28 (1). Sugar introduced through a pipe 21 to the bottom of a vacuum pan 14 is boiled up under vacuum in a chamber 13 topped by a cooker 19 with an evaporating coil, the pan 14 being held up to the chamber 13 by a vacuum seal. During boiling, ingredients such as lactic acid, flavourings and colouring are sprayed in from a nozzle 24. Such additives in a reservoir 10 are pumped in by a motor pump 15 controlled by a switch 33 operated by cams 32. After sufficient boiling and mixing a chain 23 is pulled whereby a lever 22 and chain 34 open a relief valve 35 to break the vacuum so that the pan 14 can be swung round on its beam 26 and replaced by another pan 14a, such swinging rotating a disc 31 and cam 32 to stop and start the switch 33 of the motor pump 15. The period of boiling, however, may be pre-set by a time switch. The vacuum may be made by a steam jet condenser by a column 36 leading into the chamber 31. The lactic acid to be added is buffered to adjust and stabilize its pH value and is in specified proportions.
Patent GB-1515128-A (GB)
Title: Thermoplastic moulding compositions and laminates
IPC: C08L35/06
Filed: 1975-10-08
Abstract: 1515128 Laminates BASF AG 8 Oct 1975 [9 Oct 1974] 41180/75 Heading B5N [Also in Division C3] Laminates comprise a layer of optionally rubber modified polystyrene bonded to a layer of a composition comprising a homogeneous mixture of (A) 10 to 30 weight per cent based on A + B of a styrene/maleic anhydride copolymer containing 10 to 13 weight per cent of maleic anhydride, (B) 70 to 90 weight per cent based on A+B of a polymethyl or ethyl methacrylate, optionally containing up to 10 weight per cent of acrylonitrile units, and (C) 10 to 45 weight per cent based on A + B + C of a poly (C 2-4  alkylene) oxide of molecular weight 1000 to 11,000, which may be further bonded to a layer of thermoplastic resin such as styrene/acrylonitrile, ABS or polyvinyl chloride resin. In Example (3) a laminate comprises a layer of polybutadiene rubber modified polystyrene, a layer of a composition of styrene/maleic anhydride copolymer, polymethyl methacrylate and polyethylene oxide, and a layer of polyvinyl chloride bonded under pressure at 180 C.
Patent GB-1017747-A (GB)
Title: Magnetic recording member and apparatus for use therewith
IPC: G11B5/64
Filed: 1964-10-09
Abstract: 1,017,747. Magnetic disc records and apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 9, 1964 [Oct. 30, 1963], No. 41223/64. Heading G5R. A record for language laboratory use takes the form of an apertured membrane of magnetically-coated terephthalate plastics 1, radially tensioned during manufacture (Fig. 1, not shown), the tension being maintained by epoxy resin-attached rings 8, 9. The tension is adjusted such that when a spherical head-tip 12 of some 3-inch radius is applied, the material 1, Fig. 3C (not shown), flows around the tip in intimate transducing contact, without the formation of " bowwaves," which would otherwise cause wow and flutter.
Patent GB-1175317-A (GB)
Title: Improvements relating to the Drawing of Metal Cans.
IPC: B21D22/21
Filed: 1968-08-29
Abstract: 1,175,317. Drawing metal cans. PROLIZENZ A.G. 29 Aug., 1968 [7 Sept., 1967], No. 41368/68. Heading B3M. A method for drawing a can from a metal cup comprises placing the cup over a mandrel 22 and forcing it through at least two drawing- roll collars 17 while spraying a lubricant against drawing rolls 18 in such a way as to cool, to lubricate and to clear the forming surfaces of the rolls, the outer surface of the cup and bearings 19 of the rolls. A device for carrying out the above method comprises at least two drawing-roll collars 17, a mandrel 22, and ducts 24 for connection to a supply of lubricant under pressure having orifices 25 arranged to direct jets of lubricant against the periphery of the rolls 18 in use. The rolls 18 are mounted on needle bearings 19 and have a diameter between 50 and 300 times the clearance between the rolls of the final collar 17 and the surface of the mandrel 22. The orifices 25 of the ducts 24 are arranged to direct jets of lubricant against the peripheries of the rolls with a tangential component so that in operation the lubricant jets impinge on the periphery of the rolls eccentrically and rotate the rolls in a sense which corresponds to the direction of movement of the can body during drawing. Two drawing dies 26 and 27 are shrunk in bushings 28 and 29 respectively above the roll collars 17 for final smoothing of the outer surface.
Patent GB-936995-A (GB)
Title: Process for the polymerisation of ªá-olefinic hydrocarbons containing at least three carbon atoms in the molecule, and catalyst therefor
IPC: C08F10/00
Filed: 1959-12-07
Abstract: In a process for the polymerization of alphaolefinic hydrocarbons containing at least three carbon atoms, particularly propylene, in presence of a catalyst formed by addition of an aluminium alkyl compound to a product (substantially TiCl3) obtained by reacting TiCl4 with a hydride or organometallic compound of a metal of the 1st-3rd Group of the Periodic System, said product is heated at 150 DEG -500 DEG C. and contacted prior to polymerization with an alkyl aluminium compound or an alcohol for at least three minutes.  The invention comprises also the catalyst or catalyst component so produced.  Specified contacting agents for said product are Et3Al, Et2AlCl, i-Bu2AlH, Pr2AlCl, EtOH, i-PrOH and n-BuOH. Specification 909,063 is referred to.
Patent GB-1049559-A (GB)
Title: Flotation cells
IPC: B03D1/16
Filed: 1965-09-30
Abstract: 1, 049, 559. Froth flotation apparatus. SCHUCHTERMANN & KREMER-BAUM A. G. FœR AUFBEREITUNG. Sept. 30, 1965 [Nov. 18, 1964], No. 41574/65. Heading B2H. Each cell in a flotation apparatus is provided with a weir 3 between an agitation compartment 1 and a frothing chamber 2, the latter being provided with flow passages 4, 5 in its end walls, a retaining baffle 6 and a duct 7 which is disposed on the upstream side of the retaining baffle and extends to a position below an agitator 8 having a conveyance capacity exceeding the throughput of pulp through the apparatus. The pulp is passed through two pairs of cells from an inlet 12, Fig. 1 (not shown) to an outlet chamber 10 containing adjustable weirs 11 and an outlet connection 15. Each agitator causes a downward flow of pulp towards its inlet duct 7 and aerates the pulp with a supply of air as it delivers it upwardly into the agitation compartment 1. The froth is removed by paddles 13, Fig. 3 (not shown), and the pulp returned to the frothing chamber 2 over the weir 3. The retaining baffle comprises plates 6a, 6b and serves to prevent the pulp which enters through the passage 4 from passing directly to the outlet passage 5. In another arrangement, one agitation compartment may serve two frothing chambers.
Patent GB-1536820-A (GB)
Title: Pressure regulator assembly
IPC: B60T13/16
Filed: 1977-10-06
Abstract: 1536820 Pressure regulators GENERAL MOTORS CORP 6 Oct 1977 [15 Oct 1976] 41621/77 Heading F2V A pressure regulator comprises an inlet 44 communicating via a valve 108 with a chamber 118, one wall 120 of which is biased by spring 126 to engage valve 108 and open it and is movable under the influence of pressure in the chamber 118 to allow the valve 108 to close, thereby maintaining a substantially constant pressure in the chamber 118, which communicates via a check valve 136 with an outlet 66, and a pressure relief valve 150 arranged to connect the outlet 66 with a relief outlet 62 should the outlet pressure exceed a set value which is greater than the desired constant pressure. The regulator is used in a vehicle to supply a substantially constant pressure via an actuator valve (26) to hold off the parking brake, Fig. 2 (not shown).
Patent GB-1396349-A (GB)
Title: Filter for filtering gas containing dust with a pressure gas return scavenging device
IPC: B01D46/04
Filed: 1972-09-08
Abstract: 1396349 Filter for gas containing dust MASCHINENFABRIK BETH GmbH 8 Sept 1972 41870/72 Heading BIT In a filter for gas containing dust in which gas to be cleaned is passed from chamber 5 through a number of filter elements 2 and clean gas is delivered via clean gas channels comprising sections 3, 4 to clean gas chamber 6, the elements are arranged in groups, each group being suspended from on a section 3 of a clean gas channel, and gas nozzles 12 on a reciprocating pipe 11 are provided for reversing the gas flow through the channels and elements to clean the elements. The pipe 11 extends through seal 21 extending along a slit 20, to gas reservoir 16, has valve 24, and the pipe, valve and reservoir are carried by trolley 13 which is reciprocated by a V belt drive (or pneumatic or electric drive). Reservoir 16 is fed with compressed gas from source (not shown) via a pivotable and height adjustable pipe 19. Valve 24 may be controlled so that in one direction of reciprocal movement gas is supplied through the nozzles upon passing every alternate channel 4 and in the other direction gas is supplied only when the nozzles are in registry with the other channels 4. One or two pivotable plates may be carried by the trolley for covering a channel or both channels adjacent the one in register with the nozzles 12. Such plates may be used to detect a group of elements having a defective element. The sections 3 together with the elements 2 may be detached from the sections 4 and removed from the filter housing.
Patent GB-897561-A (GB)
Title: Improvements in or relating to receiver circuit arrangements
IPC: H04B1/28
Filed: 1959-12-09
Abstract: 897,561. Transistor radio receiving circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 9, 1959 [Dec. 12, 1958], No. 41878/59. Class 40(6).  A receiver circuit includes a transistor in  reflex connection, into the emitter circuit of  which the aerial signal is introduced, and a second transistor mixer oscillator stage for producing an intermediate frequency signal to be returned to the base of the first transistor and again amplified. The input from the aerial is applied over tuned circuit 1 to the transistor 2, operating in the common base mode. The amplified signal from transistor 2 is fed to tuned circuit 3 in the emitter lead of transistor 4 which operates as a selfoscillating mixer, feedback of the local oscillator frequency being made over circuit 5. The I.F. output circuit 6 is connected to the base of transistor 2 operating in the common emitter mode, the amplified I.F. signal from transistor 2 being obtained from the tuned circuit 7. A circuit 8, series resonant at the I.F. is included in the emitter lead of mixer transistor 4. Overdriving of the mixer is avoided by A.G.C. of transistor 2 by means of a variable supply current fed to terminals 9.
Patent GB-1490185-A (GB)
Title: Connecting members
IPC: B65D90/08
Filed: 1974-10-23
Abstract: 1490185 Panel joints BRUNSWICK CORP 23 Oct 1974 [30 Oct 1973] 42015/76 Divided out of 1490184 Heading F2M [Also in Division E1] A connecting piece for joining panels of a structure is of bar form, preferably tubular, and of pentagonal cross-section, first and third side faces (taken in order around the periphery of the cross-section) being parallel, for fitting between projecting ends of inner and outer sheets of a sandwich panel, the second side face being perpendicular to the first and third side faces, and the fourth side face being perpendicular to the fifth side face so that one of the two latter faces can abut a similar face of another, similar, connecting piece to produce a mitre joint. The embodiments described are as described in the Specification of the parent Specification.