baber/WOPTO huggingface dataset:
Patent GB-444571-A (GB)
Title: Improvements in manufacture of hard rubber powder
IPC: C08J3/12
Filed: 1934-08-23
Abstract: Hard rubber powder is made by adding sulphur and a stabilizer such as casein to latex, spray-drying the latex to form a spongy mass, gently removing the mass from the drier by brushing with a soft brush, vulcanizing it while avoiding subjecting it to any mechanical pressure, and reducing the vulcanized rubber to powder.  Fillers, zinc oxide and accelerators may be added to the latex which may be homogenized or agitated before spraying.  The amount of sulphur may be 30 per cent calculated on the latex dry rubber content.  Means may be provided for keeping the sulphur intimately mixed with the latex during drying.
Patent GB-1143378-A (GB)
Title: Bracelets
IPC: A44C5/20
Filed: 1967-05-25
Abstract: 1,143,378. Bracelets. W. J. GRANT, D. L. MAY and G. W. A. VICKERS [trading as MONOMIL]. 25 Jan., 1968 [25 May, 1967], No. 24360/67. Heading A3H. A bracelet comprises two arcuate strips, 8, 9 which are joined together at one end by an inwardly projecting hinge 10 and each strip at the other end has secured to the inner surface one half 11, 12 of a two part hooked snap fastener. Each half 11, 12 has a hooked shaped surface and the halves inter-engage by displacing the strips 8, 9 laterally. Each half has a lateral flange 19 which engage the lateral sides of the strips to provide a continuous side edge across the join. The free ends of the strips have an inclined cut away portion to prevent impeding the halves from engaging.
Patent GB-426695-A (GB)
Title: Improvements in and relating to scissors
IPC: B26B13/04
Filed: 1934-08-24
Abstract: 426,695. Scissors. OMMER, H., 559, Postschliessfach, Solingen, Germany. Aug. 24, 1934, No. 24421. [Class 30] [See also Group XXV] The parts of scissors of the type having exchangeable blades are united by means of a regulable screw bolt i and nut k, the latter having a fluted conical surface l adapted to coact with a similar fluted depression n in the handle b.
Patent GB-761505-A (GB)
Title: Improvements in or relating to novel silanes and organosiloxane polymers and processes for preparing same
Inventor: KLEIMAN MORTON
IPC: C07F7/18
Filed: 1954-08-23
Abstract: The invention comprises silanes of the formula <FORM:0761505/IV(a)/1> where R is chlorine or an alkoxy radical of 1 to 5 carbon atoms, and polysiloxanes derived therefrom.  The silanes are prepared by reacting hexachlorocyclopentadiene with vinyl trichloro- or vinyl trialkoxy silane.  The reaction may be effected between about 75 DEG and 250 DEG  C. in the presence of an inert solvent or in the absence of a solvent.  The trialkoxy silanes may also be prepared by reacting the trichloro silane with absolute ethanol.  The examples describe the preparation of [1,2,3,4,7,7-hexachlorobicyclo-(2.2.1) - 2 - heptenyl - 5] - triethoxy - and trichloro-silanes.  By hydrolysing only two R groups in the monomer, linear polysiloxanes of the formula <FORM:0761505/IV(a)/2> are obtained, R being as above defined and X being the 1,2,3,4,7,7-hexachlorobicyclo-(2.2.1)-2-heptenyl-5 radical. Complete hydrolysis yields cross-linked polymers having an X/Si ratio of 1.  The silanes may also be cohydrolysed with other silanes, e.g. dimethyl silane diol.  Hydrolysis is effected by water in the presence or absence of a solvent, with or without heating.  The polymers are useful as ingredients in fireproofing agents, water-repellent compositions, impregnants for laminations, hydraulic fluids and low temperature lubricants.
Patent GB-1533509-A (GB)
Title: Device for pulling a monocrystal from a melt
IPC: G05D3/14
Filed: 1977-06-13
Abstract: 1533509 Crystal pulling apparatus SOC ANON COMPAGNIE GENERALE D'ELECTRICITE 13 June 1977 [5 July 1976] 24591/77 Heading BIS  In a crystal pulling apparatus in which a seed crystal support is rotated about a vertical axis while being pulled away from the melt, contractions of the pulled crystal during cooling are accommodated by resilient means connected between seed carrying rod 15 and pull rod 1. Adjustment of milled ring 5 controls spring 6 so that in one position support 11 is blocked at the base of pull rod 1. In another position of ring 5, spring 6 releases frusto conical section 14 from opening 3 to allow movement between rods 15 and 1. Monocrystals of yttrium aluminium perovskit (YA1 O 3 ) may be grown using this device.
Patent GB-870095-A (GB)
Title: Linear copolyesters
IPC: C08G63/06
Filed: 1958-07-31
Abstract: The invention comprises linear copolyesters comprising recurring carbonate groups, carboxylate groups and aromatic carbocyclic groups, in which at least some of said carbonate groups and at least some of said carboxylate groups are bonded directly to ring carbon atoms of aromatic groups derived from one or more dihydric phenols.  The copolyesters may be made by reacting (1) a hydroxycarboxylic acid or a dicarboxylic acid or an ester-forming derivative thereof, (2) a dihydric phenol and (3) an esterforming derivative of carbonic acid (e.g. phosgene or a diaryl carbonate).  The copolyesters in block form may be made (a) by melt blending homopolymers made by ester-interchange, (b) by adding phosgene to the dihydric phenol, followed by the addition of the acid and additional phosgene; (c) by adding phosgene to a dihydric phenol-dicarboxylic acid mixture, followed by the addition of more dihydric phenol and phosgene, or (d) by mixing a dihydric phenolphosgene reaction product with a dihydric phenol-acid-phosgene reaction product, followed by the addition of further phosgene to the mixture.  The Specification contains list of suitable dihydric phenols, dicarboxylic acids (e.g. saturated aliphatic dicarboxylic acids which may contain halogen substituents or hetero atoms, unsaturated aliphatic dicarboxylic acids, polymerized fatty acids, and aromatic-, cycloaliphatic- and aliphatic-aromatic-dicarboxylic acids), and hydroxy carboxylic aicds (e.g. aliphatic, aromatic and aliphatic-aromatic-hydroxy acids). Many uses are specified for the copolyesters.  Examples describe the manufacture of random copolyester by reacting (1) Phosgene, bisphenol-A and adipyl chloride; (2)-(5) and (10)-(17) Phosgene, bisphenol-A and adipic, isophthalic, azelaic, terephthalic, endomethylentetrahydrophthalic, thiodiglycollic or dimerized linoleic acid; (6), (8) and (9) Phosgene, adipic acid and resorcinol, hydroquinone or 4, 41-dihydroxydiphenyl sulphone; (7) Phosgene, 4, 41-dihydroxydiphenyl ether and isophthalic acid; (22)-(25) Phosgene, bisphenol-A and p-hydroxy-benzoic acid or 3-hydroxy-2-naphthoic acid. Further examples describe the manufacture of block copolyesters by (18) and (19) Reacting phosgene with a mixture of bisphenol-A and adipic acid followed by the addition of more bisphenol-A and phosgene; (20) Reacting phosgene with bisphenol-A followed by the addition of adipic acid and further phosgene; (21) Mixing a phosgene-bisphenol A reaction product with a phosgene-bisphenol A-adipic acid reaction product and then adding further phosgene to the mixture.  Some of the copolyesters were soluble in or were swollen by chloroform, methylene chloride, dioxane, acetone, pyridine or dimethyl sulphoxide.  Specifications 835,464, 835,465 and 870,096 are referred to.
Patent GB-170457-A (GB)
Title: Improvements in foot arch supports and inner soles, socks or the like for boots and shoes
IPC: A43B7/22
Filed: 1920-08-26
Abstract: 170,457. Bolton, J. Aug. 26, 1920. Foot-arch supports.-A support is formed of one piece of leather A split in its thickness to form lateral pockets under the arch of the foot C and under the heel D. These pockets are stuffed with wadding to suit individual requirements. Alternatively, two separate pieces of leather stitched together may replace the single piece. An additional pocket into which wadding may be stuffed may be provided by stitching another piece of leather under the first piece under the arch, and holes may be drilled in the forward end of the support to receive plugs of wadding to act as cushions for corns &c. The upper surface of the leather layer may be perforated as shown at E to permit ventilation of the pockets.
Patent GB-717567-A (GB)
Title: Improvements in hectographic copying machines
Inventor: BROWN ROLAND
IPC: B41L11/00
Filed: 1951-05-31
Abstract: 717,567. Duplicating-machines. BLOCK & ANDERSON, Ltd. Aug. 24, 1951 [May 31, 1951], No. 24737/53. Divided out of 717,492. Drawings to Specification. Class 100 (2). The Specification describes a duplicating- machine identical to that described in Specification 717,492 but the claims are directed to driving means for the traversable clip and control means therefor. Specification 717,493 also is referred to.
Patent GB-367748-A (GB)
Title: Improvements in and relating to electric current converting apparatus
IPC: H02M7/44
Filed: 1930-08-19
Abstract: 367,748. Converting electric currents. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Sabbah, C. A.; 1, Washington Avenue, Schenectady, New York, U.S.A.) Aug. 19, 1930, No. 24795. Convention date, Aug. 20, 1929. Void [Published under Sect. 91 of the Acts]. [Class 38 (ii).] In an arrangement for transmitting power between D.C. and A.C. circuits, the A.C. circuit 11 is connected to the sheath 14 of the cable on the D.C. side and through impedances 18, 19 and gridcontrolled valves 16, 17 to the conductors 12, 13 of the cable, so as to utilize the capacitv between the latter and the sheath to provide the essential capacity coupling elements in the system. In other respects the system is similar to that described with reference to Fig. 4 of Specification 364,579, the direction of current flow during the two opposite half-cycles being indicated respectively by full line and broken arrows. A condenser 27 may be connected across the primary of the grid transformer 24 to improve the voltage characteristic, and condensers 20, 21 may be connected as shown to improve wave form. The valves employed may be either of the thermionic or vapour type. The arrangement is stated to be applicable also to interconnecting A.C. circuits of different frequencies.
Patent GB-385669-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L9/04
Filed: 1931-09-04
Abstract: 385,669. Vacuum cleaners. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and JENNINGS, D. A., of General Electric Co., Witton, Birmingham. Sept. 4, 1931, No. 24847. [Class 8 (i).] The suction nozzle of a vacuum cleaner is supported by wheels 9 and a ported roller 7 which closely fits the mouth of the nozzle so that the suction on the part to be cleaned is varied. A brush 18 may be fitted to the rear of the nozzle and reciprocated by a connecting-rod 13 engaging an inclined journal 12. The roller 7 is shown as driven through friction surfaces 19 contacting with the ground but may, be driven from the electric motor or by the floor wheels. The roller 7 may also be provided with brushes.
Patent GB-1178347-A (GB)
Title: Press Speed Control.
Inventor: SMITH AUBREY HARRIS
IPC: H02P29/00
Filed: 1968-05-24
Abstract: 1,178,347. Speed responsive brakes; clutch control. EATON YALE & TOWNE Inc. 24 May, 1968 [18 July, 1967], No. 24861/68. Headings F2E and F2L. [Also in Division G3] A speed control drive system for a press comprises a flywheel driven at constant speed and an eddy current clutch having an inductive energizing winding and an eddy current brake having an inductive energizing winding; tachometer means for generating a feedback signal to provide an algebraic difference signal in relation to a reference signal which at each instant represents a preselected instantaneous speed of the press. The difference signal and a feedback signal from the clutch winding are used to control the clutch winding and the inverse of the difference signal and a feedback signal from the brake winding are used to control the brake winding. The control may in both cases be effected by triggerable controlled rectifiers conducting at a phase angle which may be so late as to provide a voltage to the winding which opposes the direction of the current flow in the inductive winding. The control system is as described in Specifications 1,178,345 and 1,178,346.
Patent GB-766279-A (GB)
Title: Improvements in and relating to devices for removing from gas or vapour solid or liquid particles suspended therein
Inventor: KOLK HENDRIK VAN DER
IPC: B01D45/08
Filed: 1954-08-27
Abstract: 766,279. Separating solid particles from gases. BUREAU VAN TONGEREN N.V. Aug. 27, 1954, No. 24898/54. Class 8(2) [Also in Group XIII] In apparatus for separating air-borne particles from a major portion of the air stream by concentrating the particles in a minor portion of the stream and comprising a frusto-conical strainer of spirally wound wire of uniform crosssection between adjacent turns of which said major portion of air passes whilst the particles are carried by the minor stream through the open narrow end of the strainer, the wire is such that at any crosssection thereof the perpendicular p dropped from the centre of gravity c to the cone axis a passes through the line or area of intersection of said chosen crosssection with the curved surface of the inscribed cone b. The angle of deviation of said major air stream is thus confined to about 90 degrees. The cross-section may be circular, rectangular, rhombic or trapezoidal. Specification 388,627 is referred to.
Patent GB-869120-A (GB)
Title: Improvements in or relating to method of and apparatus for the treatment of substances
IPC: B01J19/10
Filed: 1957-08-07
Abstract: The invention is similar to that of Specification 869,119 but the substances treated are circulated in containers or pipes and subjected to a plurality of influences consisting of electromagnetic and electric fields and light produced by an electric current modulated in the manner described in Specification 869,119.  Various apparatus are described for treating liquids and gases.  Aerosols may be treated and added to a mass of liquid which is further treated by modulated fields or light.  The liquid so treated may be added to other liquids to impart desired properties thereto.
Patent GB-735982-A (GB)
Title: An improved cigarette case
Inventor: HOGG HAROLD
IPC: A24F15/12
Filed: 1953-09-09
Abstract: 735,982. Cigarette cases. SELUART ENGINEERING CO., Ltd. Sept. 6, 1954 [Sept. 9, 1953], No. 24908/53. Class 18. A cigarette case comprises a rectangular tubular body having ribs a<SP>6</SP>, a<SP>7</SP> for engagement by projections b<SP>1</SP> on a channel section bottom b, and by grooves c<SP>2</SP> on a sliding lid c. Opening of the lid under normal pressure is limited by a projection c<SP>3</SP> engaging the end wall. A pressed out part c<SP>4</SP> facilitates opening.
Patent GB-1293507-A (GB)
Title: Derivatives of 3-carbamoyl-2-oxazolidinone, and their process of preparation
Inventor: FAURAN C
IPC: C07D263/26
Filed: 1971-04-19
Abstract: 1293507 2-Oxazolidinone derivatives DELALANDE SA 19 April 1971 [24 March 1970 17 Feb 1971] 25055/71 Heading C2C Novel 2-oxazolidinone derivatives of the formula wherein Ar is H or phenyl, R is phenyl, C 1-4  alkyl, C 2-4  alkenyl or C 5-6  cycloaliphatic, and R 1 , R 2  and R 3  each are H, halogen or CH 3 , are prepared by reacting isocyanates of the formula RNCO with the appropriate 2-oxazolidinones. Pharmaceutical compositions, suitable for oral or rectal administration, contain the above novel compounds and pharmaceutical acceptable carriers. The compounds possess anticonvulsant, myorelaxant, antidepressive, antiinflammatory, anxiolylic and analgesic properties.
Patent GB-481803-A (GB)
Title: Improvements in and relating to collapsible gates for lifts and lift wells
IPC: E06B9/06
Filed: 1936-09-15
Abstract: 481,803. Collapsable gates. SUCH, C. Sept. 15, 1936, No. 25100. [Class 45] A guard for a collapsable gate comprises shields A, fastened to pickets as by bolts D and slotted at B to take the stems of guide buttons C carried by shields to the rear.
Patent GB-601480-A (GB)
Title: Improvements in or relating to combustion chambers of internal combustion engines
IPC: F02B23/08
Filed: 1945-09-28
Abstract: 601,480. Combustion chambers. MARCHANT, W. D., and MOTOSACOCHE SOC. ANON. Sept. 28, 1945, No. 25189. Addition to 534,077. [Class 7 (ii)] The combustion chamber described in the parent Specification is modified by the provision of a barrier or wall B between the zone of maximum height F above the piston and the zone of reduced height E above the exhaust valve of a side-valve engine. The barrier may, or may not, extend as far as contour O, Fig. 8. The barrier serves to increase the depth of charge without reducing the compression ratio and also to reduce the volume of charge in the vicinity of the exhaust valve.
Patent GB-592295-A (GB)
Title: An automatic brake and stop, for motor driven vehicles
IPC: B60T1/14
Filed: 1945-09-28
Abstract: 592,295. Brakes. DAVIES, A. J. Sept. 28, 1945, No. 25309. [Class 103(i)] Safety-means for motor-vehicles comprise a bumper 1 which, on contact with an object, moves back rods 2 to actuate a lever 3 which releases a spring clip which normally holds a lever 4 and pivoted struts A in inoperative positions. The struts A thereupon drop down and raise the front wheels of the vehicle from the ground to clear the object. A rod projecting laterally from the lever 4 applies the brakes and puts the accelerator out of action to stop the engine. Reference has been directed by the Comptroller to Specifications 249,322, [Class 103 (i)], and 513,890.
Patent GB-746192-A (GB)
Title: Improvements in glass compositions
Inventor: RAWSON HAROLD
IPC: C03C3/253
Filed: 1953-09-14
Abstract: 746,192. Glass, BRITISH THOMSONHOUSTON CO., Ltd. Aug. 10, 1954 [Sept. 14, 1953], No. 25338/53. Class 56. A glass composition consists of vanadium pentoxide together with the dioxide of tellurium or of germanium and substantially no other constituent. The vanadium pentoxide constituent may range from 5 to 75 per cent weight when the other constituent is germanium and from 10 to 60 per cent weight when the other constituent is tellurium, Specification 744,947 is referred to.
Patent GB-473380-A (GB)
Title: Improvements in or relating to the construction of aeroplane doors
IPC: B64C1/14
Filed: 1936-09-18
Abstract: 473,380. Draught-excluders ; airtight doors ; door fastenings; tubular packing. SPERRY GYROSCOPE CO., Inc. Sept. 18, 1936, No. 25464. Convention date, Sept. 26, 1935. [Class 20 (iii)] [Also in Groups XXV and XXVI] An aeroplane door is hermetically sealed when flying at high altitudes by means of a pneumatic tube 13 or its equivalent, housed in a recess in the frame and engaging a recess 11 of corresponding shape in the door when closed. The tube is wholly or partly inflated by means of the valve 16 to a suitable pressure when on the ground, and the expansion due to reduced pressure at high altitudes causes the tube to engage the door and seal the joint between door and frame. The valve 16 may be used to control the pressure and may be inside or outside the cabin. When situated outside, mechanism is provided to operate it from inside the cabin. To effect an emergency opening at high altitudes the valves 16 are opened. To facilitate opening movements, the recess in the door is smaller than that in the frame and the door and frame are made with bevelled engaging surfaces. The door and body are hollow and provided with felt insulation 8.
Patent GB-601340-A (GB)
Title: An improvement in or relating to trouser presses and stretchers
IPC: A47G25/72
Filed: 1945-10-02
Abstract: 601,340. Trouser presses and stretchers. WALKER, A., and WALKER, E. Oct. 2, 1945, No. 25524. [Class 141] A folding trouser press and stretcher comprises two plates a, b hinged together at c, and two loose pressure plates d, e, pockets being provided along one longitudinal edge of the hinged plates to receive one edge of the plates d, e and pockets along the other longitudinal edge to receive wedge members f for securing the plates d, e in position. Curved portions are provided on the transverse edges of the plates d, e adjacent the hinges c, c so that when the trousers are clamped between the two sets of plates and the plate a is folded over on to the plate b, a substantially hemispherical surface is provided around which the knee portion of the trousers is stretched. Alternatively, the hinges c, may be joined by a rod carrying a roller. The wedges are prevented from being entirely withdrawn from the pockets by being bent downwardly at their outer edges and upwardly at their inner edges. The lateral edge portions of the opposed faces of each pair of plates a, band d, e are preferably provided with facings g of rubber or the like. A chain with a central hook for suspension purposes may be connected at its ends to the pivot pins of the hinges and a coat hanger and means for pressing the cuffs of the trousers may be provided.
Patent GB-601414-A (GB)
Title: Improvements in or relating to darts
IPC: F42B6/00
Filed: 1945-10-02
Abstract: 601,414. Making darts. WRIGHT, W. Oct. 2, 1945, No 25591. Addition to 581,311. [Class 83 (ii)] [Also in Group XV] A dart body comprises a tube of metal a which at an end or at part of its length is squeezed or pinched as at b to form a cruciform cross-section c, the pinched part forming a socket to receive the correspondingly shaped stem of a dart flight. The length is severed from the tube by cutting at d and e. If the squeezing pressure is great enough to force the adjacent parts together, leaving a substan tially cylindrical central hole, a flight mounted upon a wire or pir may be used.
Patent GB-473506-A (GB)
Title: Improvements in or relating to the manufacture of concentrated sweetened milk products and substances derived therefrom
IPC: A23C9/158
Filed: 1936-09-21
Abstract: In the manufacture of concentrated sweetened milk products and substances derived therefrom such as the block, powder, paste, &c. forms thereof, fat-soluble vitamins are added in the form of an emulsion in water, fresh milk, sugar syrup or other suitable aqueous liquid to the milk to be concentrated after it has been pasteurized and before or during the early stages of the concentration, water-soluble vitamins being added as an emulsion with concentrated sweetened milk during the concentration or subsequent cooling or as a solution in water, fresh milk or other suitable aqueous liquid during the concentration.  Alternatively the concentration of the milk containing the fat-soluble vitamins may be carried to a degree of excess and the water-soluble vitamins added in solution in water during the cooling.  In an example, fresh or standardized milk is sucked into a vacuum pan with sugar and then a pasteurized emulsion of vitamins A and D in fresh milk is sucked into the pan with the rest of the milk.  An aqueous solution of vitamin B concentrate and pure vitamin C (ascorbic acid) is pasteurized, cooled immediately and sucked into the pan during the concentration.  After the concentration the product is cooled.
Patent GB-1286060-A (GB)
Title: A testing device for determining the chromaticity setting of television monitors
IPC: H04N17/04
Filed: 1971-04-19
Abstract: 1286060 Testing monitors KOLLMORGEN CORP 19 April 1971 [13 April 1970] 25647/71 Heading H4F A testing device for determining the chromaticity setting of television monitors comprises a housing adapted to be placed against the surface of the cathode-ray picture tube of the monitor, a white reference light source 20 within the housing feeding light into an integrating mirror tunnel 21 through a tricolour filter 25, 26, 27, to produce light having a chromaticity of predetermined value, this light being transmitted via a translucent disc 31 and mirror 33 on to a diffusing medium 35 which is also arranged to receive light from the picture tube, both lights being observed through eyepiece 36 to compare their chromaticity. The diffusing medium 35 comprises ground glass. The front wall of the housing has resilient peripheral padding 39 where it contacts the picture tube to exclude external light, and a hand grip is secured to the bottom wall. The tricolour filter comprises three slides 25, 26, 27 of primary colours each provided with an obturating slides 25<SP>1</SP>, 26<SP>1</SP>, 27<SP>1</SP> to adjust its luminance and thus the light balance.