baber/WOPTO huggingface dataset:
Patent GB-994282-A (GB)
Title: Improvements in or relating to a plasticising and conveying device
IPC: B29C48/47
Filed: 1963-02-14
Abstract: 994,282. Injection moulding machines GEORG FISCHER A.G. Feb. 14, 1963 [Feb. 16, 1962], No, 6083/63. Heading B5A. [Also in Division B1] A plasticizing and feed device for thermoplastic synthetic materials comprises a rotary feed worm 31 which increases in diameter in the feed direction and is provided with a smooth surfaced tapered member 32, the worm 31 and member 32 being housed in cavities in housings 8, 12 respectively. The invention is described as applied to an injection moulding machine in which material fed through a passage 19 is delivered to the worm 31 by a groove 23 in a rotary high-speed drive shaft 22. The housing 8 and worm 31 are provided with spiral grooves 20, 27 of opposite hand. The delivery of material through the injection nozzle 15 can be controlled by axial adjustment of the shaft 22 and worm. This axial movement may also be controlled automatically by means of temperature feelers. The two housing portions 8, 12 are separated by a replaceable spacer disc 18 the thickness of which roughly determines the temperature of the injected plastic. In a modification (not shown) a spacer disc is arranged between the base surfaces of two cones taking the place of the one-part double cone shown.
Patent GB-608680-A (GB)
Title: Improvements relating to the hulls of ships, floats and the like
IPC: B60F3/00
Filed: 1946-02-27
Abstract: 608,680. Endless-track vehicles. GAZDA, A. Feb. 27, 1946, No. 6084. Convention date, Nov. 22, 1944. [Class 79 (i)] [Also in Group XXXIII] The hull 10 of a ship, seaplane float, or the like has a recess in which is housed one or more endless tracks 18, actuated from any power source to move continuously over rollers 17. The endless tracks 18 are formed of rubber or similar material having small ground-engaging projections (Fig. 4, not shown). These rollers may be projected from and retracted into the hull independently or jointly by either hydraulic or mechanical apparatus.
Patent GB-1418404-A (GB)
Title: Methods of and devices for vulcanising tyres
IPC: B29D30/06
Filed: 1973-02-08
Abstract: 1418404 Moulding tyres SEMPERIT AG 8 Feb 1973 [8 Feb 1972 (2)] 6149/73 Heading B5A In a method of vulcanizing tyres without using an expansible bag or diaphragm, in a mould, each tyre bead is pressed into position in its respective mould half by a mechanism comprising rollers 7 distributed around the bead circumference and supported on a linkage, whereby the rollers are moved radially over the bead and towards the tyre interior. The rollers are separated by compression springs 9 and carried in forks 8 on rods 6 pivoted to a sleeve 12 slidable on a pillar 11. Alternatively each rod carries a pair of rollers with a compression spring or a roller between each pair.
Patent GB-1199842-A (GB)
Title: A Process for Making Reinforced Polyester Sheets
IPC: B41F23/04
Filed: 1968-02-07
Abstract: 1,199,842. Laminates. CHEMISCHE INDUSTRIE SYNRES N.V. 7 Feb., 1968 [7 Feb., 1967], No. 6177/68. Heading B5N. [Also in Division B2] Reinforcing material E, such as glass fibre matting, metal wire or paper which may be printed, and an unsaturated polyester resin, which may be applied by sprays F, are sandwiched between two foils C, C<SP>1</SP> during polymerization and curing of the resin, and the latter is effected by electron-bombardment using an electron gun J. The foils may subsequently be removed, in which case they may be of cellulose film or a saturated polyester resin, but preferably they become a permanent part of the laminate, in which case they may be formed by applying films of unsaturated polyester resin in solution to the laminating rollers A, A<SP>1</SP> and partially polymerizing those films by electron bombardment from guns D, D<SP>1</SP> prior to the sandwiching operation. As shown, the laminate is corrugated prior to final polymerization.
Patent GB-1338985-A (GB)
Title: N-acyl-biscarbamates and herbicidal preparations containing them
IPC: A01P13/00
Filed: 1972-02-10
Abstract: 1338985 Herbicides containing biscarbamates SCHERING AG 10 Feb 1972 [16 Feb 1971] 6289/72 Heading A5E [Also in Division C2] Herbicidal compositions comprise as active ingredient an N-acylbiscarbamate of the general formula: in which R 1  is a hydrogen atom or a substituted or unsubstituted acyl radical, aliphatic hydrocarbon radical or cycloaliphatic hydrocarbon radical; R 2  is a hydrogen atom or an aliphatic hydrocarbon radical or a cycloaliphatic hydrocarbon radical or an aromatic hydrocarbon radical which may be substituted or unsubstituted or R 1  and R 2  together with a nitrogen atom represent a heterocyclic radical which may contain one or more further hetero atoms selected from nitrogen and oxygen, R 3  represents a hydrogen atom or an alkyl radical or an acyl radical which may be substituted or unsubstituted, R 4  represents an aliphatic hydrocarbon radical which may be substituted or unsubstituted and R 5  represents a hydrogen atom, an alkyl radical or a halogen atom, and each of X and Y which may be identical or different represent an oxygen or sulphur atom, with the proviso that at least one of R 1  and R 3  represents an acyl radical which may be unsubstituted or substituted together with other herbicidally active substances such as compounds of the general formula: in which R' 1  is a hydrogen atom or an aliphatic hydrocarbon radical, R' 2  is a substituted or unsubstituted aliphatic hydrocarbon radical, cycloaliphatic hydrocarbon radical or an aromatic hydrocarbon radical or R' 1  and R' 2  together with a nitrogen atom represent a heterocyclic radical which may contain one or more further hetero atoms selected from nitrogen and oxygen atoms; R' 3  represents a substituted or unsubstituted aliphatic hydrocarbon radical and each of X' and Y' which may be the same or different represents an oxygen or sulphur atom (many Examples are given) and also 1-phenyl-4-amino-5-chloropyridazone (6), 3-cyclohexyl-5, 6-trimethyleneuracil, 2, 2-dichloropropionic acid or salts thereof, tetrafluoropropionic acid or salts thereof, 2, 3, 6-trichlorobenzyloxypropanol.
Patent GB-1016326-A (GB)
Title: Combined check and venting valve
Inventor: GEIPEL ERNEST WALTER
IPC: F16K1/30
Filed: 1964-02-14
Abstract: 1,016,326. Electric measuring bridges. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 26, 1964 [Nov.26, 1963], No. 46680/63. Heading G1U. An A. C. electrical bridge network comprises four arms constituted respectively by a specimen capacitor X whose capacitance and loss tangent are to be measured, a variable standard capacitor S, the series connection of a variable resistor R and a first ratio coil r1 and a second ratio coil r2 inductively coupled with the first coil. A further capacitor C is connected in shunt with R, r1 and at least part of r2, and a null detector is coupled at N to the two ratio coils. The second ratio coil may consist of an arrangement of tapped coils (Fig. 2 not shown). To balance the arrangement, the turns ratio of the two coils r1 and r2 are adjusted for capacitance balance, and the ratios of C and R are adjusted for quadrature balance. At balance, the loss tangent in the specimen is given by tan # = tan 2# where tan # = wRC w being the supply frequency. This result shows that the loss tangent can be derived with no zero error due to the D.C. resistances of the ratio coils.
Patent GB-886751-A (GB)
Title: Valve for flow control of liquids
IPC: F16K31/00
Filed: 1958-02-27
Abstract: 886,751. Valves. TECHNICAL CERAMICS Ltd. (Gulton Manufacturing Corporation). Feb. 27, 1958, No. 6357/58. Class 135. A valve for flow control of liquids comprises a housing 10 having at least one inlet 11 and at least one outlet 12 or 13, a fluid flow path connecting the inlet and outlet, a piezo-electric sensitive element in the form of a plain or annular disc 17, the element acting as a valve closure means and being bonded to a piezoelectrically inert backing 16 of similar shape, the element and backing being supported centrally against movement in the axial direction by supporting means 14a mounted in said housing to allow vibration of the sensitive element in a flexural mode, the element being so positioned within the flow path that when the element is in its rest position it contacts a seating 20 in the housing so that there shall be no flow of liquid from the inlet 11 to the outlet 12, and wherein upon exciting said piezoelectric element such that the contact between said element and said housing seating is varied in accordance with said excitation, flow is allowed between the inlet and outlet. As shown, flow to the two outlets 12, 13 is controlled by similar elements 17, 19. The seatings 20, 21 must be insulated either from housing 10 or from face electrodes (not shown) of the elements 17, 19. With the elements 17, 19 oppositely polarized and their face electrodes electrically connected together and a suitable alternating voltage applied between the housing 10 and the face electrodes, the elements 17, 19 together with their backing discs 16, 18 will vibrate in a flexural mode in phase with the excitation so as to vary the contact between the elements 17, 19 and the end seatings 20, 21 and permit phases of flow to the outlets 12, 13 alternating with phases of interrupted flow, the flows periods from the respective outlets being in opposite phase. Under the same conditions of electrical connections and with the elements 17, 19 polarized in the same direction, the flow periods to the outlets will be simultaneous. If the elements 17, 19 are polarized in the same direction and oppositely phased flows from the outlets 12, 13 are required, housing 10 must be an insulator, the face electrode of element 17 must be connected to backing disc 18, the face electrode of element 19 must be electrically connected to backing disc 16, and the exciting voltage applied between the respective backing discs 16 and 18. In an alternative embodiment the two elements in a dual valve are plain discs on backings integral with supporting stems which are inwardly directed from end supports towards concave seatings at the centre of the body. A single valve having one inlet and one outlet is also disclosed. The piezo-electric elements 17, 19 may be ceramic elements of barium titanate either alone or combined with additive materials such as strontium or lead titanate. Specification 834,236 is referred to.
Patent GB-420516-A (GB)
Title: Improvements in pens for recording instruments
IPC: G01D15/16
Filed: 1933-03-02
Abstract: 420,516. Pens for recording-instruments. MATTHEWS, L. H., and FONSECA, E. C. M. D'ASSIS-, 10, Hensman's Hill, Clifton, Bristol. March 2, 1933, No. 6381. [Class 146 (iii)] A pen for a recording-instrument comprises an inverted U-tube 2, acting as a siphon and detachably mounted on the pen frame 1 of the instrument, e.g., a moving-iron oscillograph of the kind described in Specification 420,517, (Group XXXVI]. The tube 2 is formed with legs of unequal length, the shorter leg 3 dipping into an ink trough 4, and the longer leg 5 acting as the marking-point. The tube is provided with a pair of parallel pins 9 by which it is mounted on the pen frame 1, which is preferably formed of fine tubular steel, the pins entering the ends of the frame, and being of different lengths to facilitate insertion.
Patent GB-670025-A (GB)
Title: Improvements in or relating to tapered nozzles and caps therefor
IPC: B65D47/12
Filed: 1949-03-09
Abstract: 670,025. Stoppers. HOOK, E. E., and RAMSEY, J. A. March 9, 1950 [March 9, 1949], No. 6425/49. Class 125(iii). A tapered nozzle 2 for containers, especially for containers of the collapsable type having a long tapered nozzle for injecting medicinal substances into animals is hermetically sealed by a screwon cap 3 having a conical part 6 which tightly fits over the conical end of the nozzle 2 and when fully screwed down leaves a space 7 containing air under pressure. The cap engages the nozzle only approximately along a quarter of the length of the nozzle.
Patent GB-622057-A (GB)
Title: Improvements in resonant circuits for use with ultra-short waves
IPC: H03H5/00
Filed: 1947-03-07
Abstract: 622,057. Condensers. PHILIPS LAMPS, Ltd. March 7, 1947, No. 6478. Convention date, May 24, 1944. [Class 37] A resonant circuit for ultra-short waves includes a variable condenser having spiral electrodes, one of which has a width varying in stepwise manner in its longitudinal direction. In the particular embodiment, Fig. 1, a stationary spiral electrode 4, of constant width, is connected by a cross-piece 5 to an inner conductor 1. A movable, suitably guided, porcelain rod 7, connected to an outer conductor 2 by foil 10, carries an electrode 6. Conductors 1 and 2 are interconnected by a cross-piece 3. The width of the metal band, Fig. 2, comprising the unwound electrode 6, varies in stepwise manner such that each spiral turn, A, B, has a different constant width. Corners 11 may be bevelled, and the electrode widths may be equal in several succeeding turns.
Patent GB-842331-A (GB)
Title: Improvements in or relating to apparatus for manoeuvring motor vehicles in confined spaces
IPC: B60S9/21
Filed: 1957-02-26
Abstract: 842,331. Vehicle stands. SIDLER Ltd, and BUTTERWORTH, A. J. April 14, 1958 [Feb. 26, 1957], No. 6490/57. Class 79(3). An apparatus for manoeuvring a motor vehicle in a confined space, comprises, in association with each driven road wheel, a roller, having a convex under-surface and a spherical or conical upper surface rotatably mounted on a telescopic member the other end of which is attached to part of the road wheel mounting, e.g. the axle casing, in a manner which allows it to swing about a fore-and-aft axis of rotation lies in a forecontract or extend the telescopic member, and for constraining its outer and lower portion to move in such a path that when a part of the convex under-surface of the roller contacts the ground its axis of rotation lies in a fore and-aft direction and its conical upper surface is in contact with the road wheel which is raised above the ground. The axis of rotation of each roller is inclined to a transverse vertical plane in opposite directions to each other whereby rotation of the driven wheels causes each roller to move the vehicle laterally in the same direction. Several embodiments of the invention are described in which the telescopic member is a hydraulic ram 18 which may be extended by operating a pump driven from the vehicle engine and retracted by either an external spring as 31 Fig. 4, or 81, Fig. 5 or a pair of cross wound springs 91, Fig, 18, extending between a boss 89 and a screw 86 rotation of which preloads the springs. In Figs. 4 and 15 the hydraulic ram 18 is pivotally mounted at 28 and its outer end is guided by a link 22 pivoted to the ram at 23 and to a retaining bracket at 13. In Fig. 8 the ram 18 is mounted in rubber blocks held by brackets 70, the blocks permitting transverse but not fore-and-aft movement. In Figs. 11 and 12 the ram 18 has an auxiliary ram 77 which comes into operation when the ram 18 is fully extended. In these embodiments internal or external spring means may be provided to return the rams to the retracted positions. Specification 832,680 is referred to.
Patent GB-272425-A (GB)
Title: Coin change-giving device
IPC: G07D9/02
Filed: 1927-03-08
Abstract: 272,425. Ertzdorff, N. von. March 8, 1927. No Patent granted (Sealing fee not paid). Coin handling appliances.-A tiltable change board c carried by a helical spring b is formed with an angular recess i at each end between tapered projections d. In a, modified construction the board c is supported on two springs, and a catch. releasable by the operator, may be fitted to prevent unintentional tilting of the board c.
Patent GB-712214-A (GB)
Title: An improved process for refining pig-iron in a converter
IPC: C21C5/32
Filed: 1952-03-13
Abstract: In a process for refining pig-iron by blowing oxidizing gases on to the surface of a molten metal bath, the cubic capacity of the converter is kept below 0.9 cubic metres per ton of molten metal. This condition may be achieved in a normal converter by increasing the amount of the charge, e.g. by increasing the height of metal by 16-20 per cent.  The blast may exert a pressure on the surface of the metal equivalent to less than 0.7 kgs./sq. cm.; as described in Specification 712,213.
Patent GB-285659-A (GB)
Title: Improved scaffold supporting means
IPC: E04G5/06
Filed: 1927-03-09
Abstract: 285,659. Las Heras, B. F. de. March 9, 1927. Building blocks, special shapes of.-Hollow blocks M for walls are provided with transversely-extending holes for the reception of scaffold-supporting bars 1 - - - 7.
Patent GB-1027969-A (GB)
Title: New carbamic acid esters
IPC: C07C271/06
Filed: 1965-02-16
Abstract: The invention relates to carbamic acid esters of the general formula: <FORM:1027969/C2/1> in which R is a C1- 5 alkyl radical, R11 is a C1- 5 alkyl, R1 is a hydrogen atom or a C1- 5 alkyl radical and A is a hydrogen atom or a nitro group, with the proviso that a nitro group is always present in the phenyl radical.  Compounds claimed per se are 3,5-dimethyl-4-nitrophenyl-N-methyl carbamate, 3-methyl-5-ethyl - 4 - nitrophenyl - N - methyl carbamate, 3 - isopropyl - 4 - nitrophenyl - N - methyl carbamate, 3,5 - dimethyl - 2 - nitrophenyl - N -methyl carbamate.  The compounds may be prepared by reacting a phenol of the general formula <FORM:1027969/C2/2> (a) with an isocyanate of the general formula R11 NCO or (b) with an excess of phosgene to give the corresponding chloroformic acid ester which is then reacted with an amine of the general formula R11-NH2 in which R11 is as above or (c) with an approximately equimolar amount of phosgene to give the corresponding bis-(phenyl) carbonate which is then reacted with an amine of a general formula R11-NH2.ALSO:Molluscicidal compounds contained as active ingredients a carbamic acid ester of the general formula:  <FORM:1027969/A5-A6/1> in which R is a C1-5 alkyl radical, R11 is a C1-5 alkyl radical, R1 is a hydrogen atom or a C1-5 alkyl radical, A is a hydrogen atom or a nitro group with the proviso that a nitro group is always present in the phenyl radical, together with a solid or liquid diluent or extender.  Enticing agents may also be incorporated.  A long list of carriers, activants, adjuvants, emulsifying agents &c. is given. Specified active ingredient is 3,5-dimethyl-4-nitrophenyl-N-methyl carbamate.
Patent GB-897172-A (GB)
Title: Improvements in, or relating to, ventilators
Inventor: SIMMONS JOHN FRANCIS
IPC: F24F13/15
Filed: 1957-02-28
Abstract: 897,172. Ventilators. HILLS (WEST BROMWICH) Ltd. May 28, 1958 [Feb. 28, 1957], No. 6653/57. Class 137 A ventilator in which a master shutter and a number of slave shutters are operated together by a single operating mechanism comprises a master shutter located at one end of a ventilator opening and a number of slave shutters, each shutter being provided with projections from one edge thereof and being pivoted about an axis outwardly of an opening in the cladding of a building, the axes passing through the projections which extend towards the same end of the ventilator, and an operating arm fixed rigidly to the master shutter, extending into the interior of the building and connected to a shutter operating mechanism. As shown, a master shutter 2 has two depending flanges 13, 14 connected to an operating arm 15 which is pivoted to an operating mechanism comprising a chain wheel 27, a thread 21, a nut 20 and an arm 19. A number of slave shutters 3 are pivotally connected to a bar 11 by frames 9, 10, the master shutter also being connected to the bar 11 so that the opening of the master shutter causes opening of the slave shutters, all the shutters pivoting about axes 4 situated within the ventilator opening In the closed position the free end of each shutter overlaps the pivoted end of the next shutter. In a modification, Fig. 3 (not shown) a hydraulic piston moves the master shutter and a rod to which the slave shutters are connected.
Patent GB-350518-A (GB)
Title: Improvements in or relating to keyboard controlled machines
Filed: 1930-02-28
Abstract: 350,518. Typewriters. ACCOUNTING & TABULATING CORPORATION OF GT. BRITAIN, Ltd., Aldwych House, Aldwych, London, THOMAS, A., 103, Headcorn Road, and CRAIG, G., 14, Howberry Road, both in Thornton Heath, Surrey. Feb. 28, 1930, No. 6710. [Class 100 (iv).] In a machine, for example, of the type described in Specification 328,255, [Class 31 (ii), Punching and perforating machines &c.], in which a carriage with a column of setting members, actuated from a keyboard by Bowden wires, travels step by step over a plurality of columns of set bars, and the card is punched on depression of a punch key after all the bars are latched, a power-operated relay is introduced between the keys and the bell cranks to lessen the load on the keys. Depression of a key 1 actuates a bell crank 2 to slide a bar 5 until a lug 7 registers with a notch 8 in a lever 6 urged upwards by a spring and carrying a toothed eccentric 10. Each key controls similar mechanism. The upward movement of the levers 6 engages the eccentrics with a constantly driven toothed roller 11 which rotates the eccentric to its restored position and swings the lever 6 downwards to operate a Bowden wire 12 connected to the bell crank for operating the selector bars. To prevent continued operation should a key be held depressed the levers 6 carry latches 14 engaging shutters 16. If the key is held depressed the roller 11 swings the lever 6 to its lowest position and the latch 14 snaps under the shutter 15 and is held inoperative. The release of a key resets the latch by a shutter 17 engaging the end of the bars 5. In a modification, Fig. 4 (not shown), a stirrup latch 114 on the lever 6 snaps under the key 7. To operate the machine from a typewriter as described in Specification 351,036 each key-bar 5 engages a lever 20 operated by Bowden mechanism from the typewriter. The relay mechanism may be used in punching machines, verifying machines, or typewriters. Specification 350,001 also is referred to.
Patent GB-572128-A (GB)
Title: Improvements in method for recovering quebrachitol from rubber latex serum
IPC: C08K3/26
Filed: 1944-04-12
Abstract: Quebrachitol is obtained from rubber latex serum by adding lime, and heating it sufficiently to produce precipitation by the lime of constituents in the serum, which are then separated. Excess lime is removed from the serum, the pH adjusted to below 5 and the acidified serum is passed through a cation exchange material, to remove monovalent metal ions and nitrogenous material.  The thus treated serum is evaporated and quebrachitol crystallises out.  Carbon dioxide or phosphoric acid is used to precipitate excess lime from the serum and the pH is adjusted by the addition of a dilute solution of a strong acid.  The serum may be passed through an anion exchange material prior to evaporation to effect further removal of nitrogenous material.