baber/WOPTO huggingface dataset:
Patent GB-335775-A (GB)
Title: Improvements relating to the coating or filling of wire gauze, netting or the like by means of cellulose derivatives
IPC: C09D101/08
Filed: 1929-10-28
Abstract: 335,775. Haver, E. Oct. 28, 1929. No Patent granted (Scaling fee not paid). Single coatings; multiple superposed coatings; special fabric bases. - Wire gauze or netting is coated or filled with a solution of a cellulose derivative containing a small proportion of a hydrocarbon such as white (crepe) rubber, paraffin wax or paraffin oil, the coating being preferably provided with a thin layer of a transparent air- and water-proof substance having a high melting point such as wax, a fat or mineral product or resin or varnish, dissolved in a volatile solvent having a softening action on the coating. Additions to the cellulose derivative solution may include (a) a " carrier " such as adipic acid ester, a cyclohexyl ester or other cyclic ester, (b) a synthetic resin such as glycol phthalate, (c) " prepared " wood oil, (d) resins such as elemi resin, Canada balsam or Gurjun balsam, (e) ethereal oils such as methylglycolacetate, glycolmonomethyl ether, butyl lactate, ethylactate or diacetone alcohol, (f) softening agents such as tricresylphosphate, and (g) acetone or a substance similar thereto. Examples of compositions suitable for the first coating are (1) 100 parts cellulose acetate, 1.5 parts paraffin, paraffin oil or white (crepe) rubber, 200 parts methylglycol acetate, 20 parts ethyl lactate, 20 parts tricresyl phosphate and 700 parts acetone (2) 75 parts cellulose acetate, 1.6 parts paraffin or paraffin oil, 0.8 parts white (crepe) rubber, 30 parts benzyl alcohol, 10 parts ethyl lactate, 35 parts triphenyl phosphate and 726 parts methylacetone. To either of the above compositions may be added 1.5 parts of Chinese wood oil which has been heated to a high temperature and 2 parts of gum elemi, Canada or Gurjun balsam or a synthetic resin such as polymerized cyclohexanone. Suitable substances for the second coating are Montan, candelilla, carnauba, ceresin or paraffin wax, paraffin oil or resins or varnishes dissolved in a solvent which may consist of 2 parts ethyl lactate, 3 parts methylglycol acetate, 25 parts methyl acetate, 30 parts toluene, 25 parts xylene and 15 parts methyl alcohol.
Patent GB-142765-A (GB)
Title: Improvements in blowpipe operating mechanism for glass forming apparatus
IPC: C03B9/22
Filed: 1919-12-31
Abstract: 142,765. Jackson, W. J. Mellersh-, (Westlake European Machine Co.). Dec. 31, 1919. Blowing.-Relates to glass blowing machines of the type described in Specification 26222/11, having blow-pipes or spindles. According to the present invention, the blowpipe or spindle 26 is rotated on its own axis at a low speed during the preliminary blowing of the blank; while the spindle 26 is being swung about the horizontal shaft 48 to lengthen the blank, the rotation is arrested; during the blowing in the mould 27, the rotation is resumed at a higher speed, so that a higher air pressure can be employed; and the neck of the bulb is finally rotated in the reverse direction at a low speed against a scoring-knife 42, Fig. 2, prior to the bulb being knocked off by an arm 105. To produce the rotation of the spindle 26, described above, it is connected by gearing 46 with a shaft 48 provided at its inner end with a sliding section 49 bearing a large spur wheel 53 and a small one 52. The sliding shaft 49 is moved longitudinally by fixed cams 69, 70, 71, Fig. 2, as the main frame revolves. In this way, the large wheel 53 is first engaged with a fixed rack 63 and imparts slow rotation to the spindle 26. A period of disengagement follows, and then the small wheel 52 is engaged with a rack 62 causing high-speed rotation during blowing. The mould then opens and the large wheel is engaged with a lower rack 64, which imparts low-speed reverse rotation to the spindle while the neck of the blown bulb is in contact with a spring-pressed scoring-knife 42. The rotation of the main frame then causes the spindle 26 to press back a spring-pressed pivoted lever 107, which carries a wooden arm 105. When the lever 107 escapes from the spindle 26, the arm 105 swings back and knocks off the bulb. Each head on the machine may carry two spindles 26 as shown in the middle of Fig. 1.
Patent GB-676709-A (GB)
Title: Method and apparatus for seam-bonding pieces of sheet material
IPC: B29C65/48
Filed: 1949-12-22
Abstract: 676,709. Seaming non-metallic sheet material. ANDREWS, A. M., and PHILLIPS SCREW CO. Dec. 22, 1949, No. 32871/49. Class 42 (i). Two pieces of non-metallic flexible sheet material are seam-bonded together by soaking a thread in a bond-effecting liquid, laying the thread with its absorbed liquid between the sheets of material where the bond is desired while substantially protecting the liquidcontaining thread from the atmosphere, and immediately applying pressure to the sheets of material and the thread therebetween. As shown, plastic sheets 3, 4 (e.g. of vinyl resin) are fed between driven pressure rollers 14, 15. Thread is drawn from a spool 5 through a reservoir 1 containing solvent 2 for the plastic material ; surplus liquid is stripped from the thread by a felt 9 against which it is spring- pressed. The thread then passes through a tube 12, which protects it from the atmosphere, to a point 13 at which it is fed between the sheets 3, 4 as they pass between rollers 14, 15. Roller 15 is grooved to accommodate the thread and allow the sheets to be pressed together at each side of the thread. The solvent squeezed from the thread by the rollers effects two parallel bonds spaced apart by the width of the thread. The thread, which is not bonded to either sheet, may be subsequently withdrawn from the seam, or may be broken by stretching the material along the seam ; or the thread may be made of a material related to that of the sheets so that it bonds to the sheets, the groove in roller 15 being in this case omitted. A small amount of the material of the sheets may be dissolved in the solvent.
Patent GB-1071598-A (GB)
Title: Improvements relating to mechanical vibration generators
IPC: B06B1/16
Filed: 1964-08-12
Abstract: 1,071,598. Vibrators. E. HALILOVIC, P. MILJKOVIC, and M. PAVLOVIC. Aug. 12, 1964 [Aug. 12, 1963], No. 32875/64. Heading F2X. A drive-shaft 12 which actuates two separate vibratory systems is connected directly to a disc 6a to which is attached an adjustable disc la, both discs incorporating an unbalanced mass 7a, 5a, respectively. The other system consists of similar discs 1, 6 and mass 5, 7, connected indirectly to the shaft 12 through one of two gear trains 14, 23, 25 or 15, 16, 18, 20; a further set of gears, not shown, may be provided. The discs are disposed in an open housing 27 in which is inserted an extension 29 bolted to the housing and the degree of movement of which is adjustable by conical plugs 31 on a shaft 33, the plugs co-operating with complementary openings 32 forming part of the extension. The speed of the shaft 12 may be adjusted. The various adjustments provide for regulation of the magnitude of the excitation force and the displacement amplitude, as well as the speed, acceleration, form, direction and programme of the oscillations. The mechanism may produce elliptic oscillations either associated with an outside load having negligible inertia or with the gravity load of the apparatus; translational oscillations are generated by synchronous rotation of both systems in the same or opposite directions. The mechanism can work in a vibration-impact programme by adjustment of the shaft 33 or as a poly-frequency system.
Patent GB-268430-A (GB)
Title: Temperature indicators mainly applicable to ovens
IPC: G01K5/62
Filed: 1925-12-31
Abstract: 268,430. Negretti, H. N., Negretti, P. E., Zambra, M. W., and Ibbott, H. W. Dec. 31, 1925. Thermometers.-A temperature indicator suitable for fitting into an oven door comprises a bimetallic element 1 composed of bars having different coefficients of expansion which are united by brazing &c. at their ends only and are drilled at 2. At one end 4 the bars are also drilled and slotted at 3 so that this end constitutes a rocking piece the movements of which are transmitted to the indicator. The element 1 is mounted in a diametral recess in the back of a thin metal casing 5 so as to be directly exposed to the heat of the oven and is loosely connected to this casing by a screw 18. The casing 5 is connected by distance pieces to another casing 6 from which it is insulated by asbestos &c. 11, the dial 8 and bezel 9 being carried by the casing 6. The movement is wholly supported by the element 1 on pillars 15 and is mounted in a frame having plates 16 with connecting pillars 17. The hand 21 is mounted on a spindle carrying a pinion 20 engaged by a quadrant 19 from which projects an arm 23 connected by a link 24 to an arm 25 fixed on a pillar 26 which is rigidly secured to the rocking piece 4.
Patent GB-855805-A (GB)
Title: Means in and relating to vehicle suspensions
Inventor: DAWTREY LEWIS HENRY
IPC: F16F1/22
Filed: 1957-10-23
Abstract: 855,805. Spring suspensions; laminated springs. STANDARD MOTOR CO. Ltd. Dec. 8, 1958 [Oct. 23, 1957], No. 33037/57. Classes 108(2) and 108(3). A chassis member 12 is supported on a wheel axle 14 by a leaf spring 10. A second leaf spring 18 is attached to the chassis member 12 at a point 17 and to the leaf spring 10 by a link 19. The leaf spring 18 bears against an abutment 22 which is attached to the chassis member 12. The arrangement is such that as the wheel loading increases, the spring 18 is flexed over the abutment to become progressively reduced in length, whereby to apply a stiffened opposition to deflection of the wheel supporting spring 10. Thus, the effective length of the spring 10 is varied in dependencd on the load conditions.
Patent GB-746180-A (GB)
Title: An improved clamp for electric conductors
Inventor: PORTER FRANK
IPC: H01R4/30
Filed: 1952-12-31
Abstract: 746,180. Cable clamps; couplings. PORTER ELECTRICAL PRODUCTS, Ltd. Dec. 29, 1953 [Dec. 31, 1952], No. 33042/52. Classes 36 and 38 (1). [Also in Group XXV] A clamp 4 for a flat conductor comprises a metal body (Fig. 7) cleft to provide limbs 5a, 5b with a slot 6 between them for the reception of the conductor, the body having at least one hole through both limbs near their free end for the reception of a locating screw transfixing the conductor and another hole nearer the base of the cleft through one or both limbs in which a clamping screw 8 is inserted to bear against the conductor or to attach the clamp to another body. Two locating screws 14, 15 may be provided. Two flat conductors may be connected by inserting both in the cleft. The rear face of the clamp may have a part-circular recess 20, and a clamping bar 21, which may be flat or have a complementary recess 22, may be screwed against this face to form a circular or part-circular passage for the reception of an earthing conductor. Alternatively the recessed bar 21 may be screwed against the flat lower face of the clamp, or against a recessed extension thereon. In another embodiment (Fig. 10), the clamping screw 17a, provided with nut 32, projects from a recessed mounting member 24 against which the flat or recessed bar 21 is screwed. In a further modification the clamp 4 is provided with a second cleft, also transfixed by the clamping screw, for the reception of an additional conductor, or to enable the clamp to be fixed to a pipe. Specifications 565,434, 676,491 and 746,270 are referred to.
Patent GB-1031453-A (GB)
Title: Free-running oscillators
Inventor: WRIGHT MAURICE JAMES
IPC: H02M1/08
Filed: 1961-09-18
Abstract: 1,031,453. Pulse generating circuits. JOSEPH LUCAS (INDUSTRIES) Ltd. Sept. 3, 1962 [Sept. 18, 1961], No. 33321/61. Heading H3T. A rectangular-wave oscillation generator comprises a semi-conductor controlled rectifier of the type, as described in Specification 1,031,451 [Division H1], which can be switched from the conducting to the non-conducting condition by the application of a suitable reverse potential to its gate electrode, a first capacitor which when the controlled rectifier is non-conductive is charged until it causes the breakdown of a first four-layer diode so as to apply a pulse to the gate of the controlled rectifier to render it conductive and a second capacitor which when the controlled rectifier is conductive is charged until it causes the breakdown of a second four-layer diode so as to apply a pulse to the gate of the controlled rectifier to render it non-conductive. In the circuit of Fig. 1, capacitor 9 charges from the positive supply terminal 4 until the voltage across it is sufficient to cause breakdown of four-layer diode 8 and the application of a positive pulse to the gate electrode of rectifier 6 to switch it on. When rectifier 6 conducts, capacitor 14 discharges through the rectifier, thus causing capacitor 11 to charge, this continuing until four-layer diode 10 breaks down and applies a negative pulse to the gate electrode of the rectifier to switch it off. Capacitor 9 then re-commences charging and the cycle repeats. In the circuit of Fig. 2 (not shown), Zener diodes are placed in the charging circuits for the capacitors 9 and 11 to render the charging rates and hence the frequency of oscillation independent of variations in the supply voltage. In Fig. 3 capacitor 27 charges until four-layer diode 26 breaks down and switches rectifier 23 on. Capacitor 32 then commences charging until four-layer diode 31 breaks down and switches rectifier 23 off.
Patent GB-752443-A (GB)
Title: Surgical needle
IPC: A61B17/06
Filed: 1954-11-17
Abstract: 752,443. Sewing. ETHICON, Inc. Nov. 17, 1954 [Nov. 17, 1953], No. 33339/54. Drawings to Specification. Class 112. A curved surgical needle is made triangular in section with the base of the triangle on the inside of the curve. The triangle is preferably equilateral and its apices slightly rounded. The head end of the needle is preferably of channel section, within which a suture can be clamped.
Patent GB-836437-A (GB)
Title: Unsaturated polyesters
IPC: C08G63/682
Filed: 1956-11-01
Abstract: Unsaturated polyesters having on copolymerization a good fire-resistance and stability to ultra-violet light, are made by reacting an a ,b -ethylenically unsaturated dicarboxylic acid with 2,2 - bis - (chloromethyl) - propanediol - 1,3.  The unsaturated dicarboxylic acid may be maleic, fumaric or itaconic acid and from 20-75 mol. per cent is usually replaced by another dicarboxylic acid, e.g. phthalic, isophthalic, terephthalic, adipic, sebacic, tetrachlorophthalic or chlorendic acid.  When using two such acids the unsaturated dicarboxylic acid may be reacted with excess of the glycol followed by reaction with the other dicarboxylic acid or vice versa (see Specification 836,438).  Reaction may also be effected under mild vacuum as described in Specification 836,436. Modifying agents may be incorporated into the polyesters, e.g. other glycols, polycarboxylic acids or polyhydric alcohols containing more than two functional groups, or saturated or unsaturated monocarboxylic acids or monohydric alcohols.  The polyesters may be copolymerized with styrene, ethyl acrylate, methyl methacrylate, vinyl acetate, diallyl acrylate, methyl methacrylate, vinyl acetate, diallyl phthalate or dimethyl fumarate using as a polymerization catalyst benzoyl peroxide, lauroyl peroxide, methyl ethyl ketone peroxide or cyclohexanone peroxide.  Copolymerization may be effected in presence of a flame-retarding plasticizer, e.g. tri-(betachloroethyl) phosphate. In an example a polyester of 2,2-bis-(chloromethyl)-propanediol-1,3, maleic anhydride and phthalic anhydride was copolymerized with styrene using benzoyl peroxide in tricresyl phosphate as a catalyst.
Patent GB-998859-A (GB)
Title: Phosphorus containing polyurethanes
IPC: C08G18/50
Filed: 1962-08-30
Abstract: A process for the preparation of phosphorus containing polyurethanes comprises reacting a linear or branched polyhydroxyl compound, which comprises or consists of one or more triesters of phosphorous acid containing at least two phosphorous atoms in the molecule, with an organic polyisocyanate and if desired a cross-linking agent to produce a mouldable plastic. The triesters of phosphorous acid may be used in admixture with polyesters, polyethers, polythioethers or polyacetals.  Cross-linking agents specified are polypropoxylated phosphoric acid, polypropoxylated polyamines and polyamines. The reaction may take place in the presence of blowing agents such as water or trichlorofluoromethane surface-active agents such as siloxane-polyether block copolymers and sodium ricinoleic sulphate, and catalysts such as tertiary amines or organotin compounds to give foamed products or in the presence of solvents to give lacquers. Polyphosphites containing hydroxyl groups are produced by transesterifying triesters of phosphorous acid from simple alcohols with polyhydric alcohols which may be monomeric compounds, polyethers, polyesters or polyacetals. The preparation of polyphosphites by the transesterification of trichloroethyl phosphite with a mixture of pentaerythritol and (A1) diethylene glycol, (A2 and A3) triethylene glycol, (A4) polypropylene glycol or (A7) 1,6-hexanediol; (A5) a mixture of diethylene glycol and the reaction product of cane sugar, formalin and diethylene glycol; (A6) the reaction product of cane sugar and triethylene glycol; (11 and 12) triethylene glycol; or (13) a mixture of triethylene glycol and glycerol-1 pentachlorophenyl ether.  Specifications 978,285 and 998,860 are referred to.
Patent GB-927831-A (GB)
Title: Improvements in or relating to microwave process and apparatus
IPC: G03G5/16
Filed: 1961-09-19
Abstract: 927,831. Recording &c. by micro-waves. LITTON INDUSTRIES Inc. Sept. 19, 1961 [Sept.29, 1960; Dec. 5, 1960 (2)], No. 33537/61. Class 40 (2). A recording process comprises subjecting a microwave sensitive material to a high-intensity static magnetic field to tune the material into energy reactive relationship with the frequency of a radiant electromagnetic beam. A tape base record member 11 has deposited thereon a layer of wax supporting a plurality of aligned crystals 12 of a semiconducting material capable of providing free orbiting electrons or sub-atomic particles. The tape is irradiated with X- rays, neutrons, high energy electrons or the like 13, Fig. 3, such that electrons from the crystals are freed from the atoms and rotate about its atoms in fixed parallel orbital planes or spin axes 17, the angle of which is determined by the incident radiation. The tape is then subjected to a static magnetic field 18, Fig. 4, the intensity of which controls the spin rate and is substantially linear over a given range of field strength. The record member is then exposed to a polarized beam of a radio-frequency signal to be recorded introduced by a waveguide 19, Fig. 5, and directed such that its H component is transverse to the static field, whereby the orbiting particles absorb energy and produce heat to soften the wax so that the crystals assume disoriented positions, Fig. 6. After exposure to the radio beam, the wax layer hardens and maintains the displaced crystals in positions which permanently record or store the energy from the radio beam. For playback of the recorded information, the tape is again subjected to a static field and scanned by a weak radio beam from a waveguide 19a, Fig. 7. A suitable detector waveguide 20 is located on the other face. Areas which have not been affected by the recording absorb the energy from the weak beam, but the recorded areas produce little or no absorbtion and allow the beam to pass through the medium and be detected by the detector waveguide 20. In a second embodiment (Figs. 9-14 (not shown)), the coating is of material which changes its colour under the influence of heat to produce a more permanent record which is played back optically. Specification 702,000 is referred to.
Patent GB-1010778-A (GB)
Title: A method for the reduction of corrosion in process equipment used for the production of gas mixtures comprising hydrogen
Inventor: FRANK SIDNEY MARVIN
IPC: C01B3/48
Filed: 1964-08-18
Abstract: Ammonia is added to a system comprising a shift converter and a cooler for the effluent from the converter, to prevent corrosion in equipment contacted by steam condensate from the cooler.  The converter may deal with gases produced by reacting hydrocarbons, e.g. natural gas, with steam and/or oxygen catalytically or non-catalytically.  The ammonia, which may be added as an aqueous solution or as the compound, may be introduced at any point after the cooler, part at least of the condensate, which contains ammonia in amounts of 10 p.p.m., being recycled by a pump to the steam supply to the shift reaction via a direct cooler for the make gas, after separation of uncondensed portions of the effluent in a drum for subsequent treatment.  The pH of the condensate is thus raised up to as much as 8.5, preferably 7.0 to 7.5.  The cooler following the shift converter may be direct (by condensate) or indirect.ALSO:Ammonia is added to a hydrogen producing system comprising a shift converter and a cooler for the effluent from the converter, to prevent corrosion in equipment contacted by steam condensate from the cooler.  The converter may deal with gases produced by reacting hydrocarbons, e.g. natural gas, with steam and/or oxygen catalytically or non-catalytically. The ammonia may be added as an aqueous solution or as the compound, and is introduced at any point after the cooler. Part at least of the condensate, which contains ammonia in amounts of 10 p.p.m., is recycled by a pump to the steam supply to the shift reaction via a direct cooler for the make gas, after separation of uncondensed portions of the effluent in a drum for subsequent treatment, e.g. removal of CO2.
Patent GB-1360554-A (GB)
Title: Photosensitive compositions
IPC: G03G5/09
Filed: 1972-07-19
Abstract: 1360554 Polyvinylcarbazole composition MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 19 July 1972 [6 Oct 1971] 33827/72 Heading C3P [Also in Division G2] A photosensitive composition useful in electrophotographic materials (see Division H1) comprises a vinylcarbazole (or substituted vinylcarbazole) polymer and an isocyanate. The composition comprises less than 30 parts by weight of isocyanate per 100 parts of polyvinylcarbazole, and it may also contain up to 200 parts of a plasticizer and/or a binder, for example a polycarbonate resin or cyanoethyl cellulose and a chlorinated biphenyl, a chlorinated naphthalene or an epoxy resin respectively. Exemplified isocyanates are tolylene diisocyanate, diphenylmethane diisocyanate and "Vulcabond TX" and "Desmodur VL" (Registered Trade Marks). The polymer may be polyvinylcarbazole or brominated polyvinylcarbazole. Conventional sensitizers such as crystal violet and 2-methylanthraquinone may also be present.
Patent GB-787708-A (GB)
Title: Improvements in or relating to methods of producing a conductive layer of graphite on an insulating surface
IPC: C25D5/54
Filed: 1955-11-25
Abstract: 787,708. Cathode-ray tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Nov. 25, 1955 [Nov. 29, 1954], No. 33839/55. Class 39(1). Layers of colloidal graphite applied as electrolyte stabilized suspensions in water and then dried are afterwards wetted by spraying, sprinkling or immersion in water having a temperature of at least 50C. The suspension may comprise colloidal graphite, acetic acid and a synthetic resin. The warm water, preferably at 55-60C., is applied before the layer has cooled. The conductive layer of graphite is produced on an insulating surface, e.g., the outer surface of a C.R.T.