baber/WOPTO huggingface dataset:
Patent GB-1022863-A (GB)
Title: Cellular polyurethanes
Inventor: MAYER RUDI
IPC: C08G18/40
Filed: 1963-03-29
Abstract: cellular polyurethane plastics are prepared by reacting, in the presence of a blowing agent, an organic polyisocyanate and a polyhydroxyl compound which has to be prepared by a process including polymerizing a hydroxyalkyl acrylate and/or methacrylate.  The hydroxyalkyl acrylates or methacrylates are preferably copolymerized with an ethylenically unsaturated monomer, in the presence of a free-radical-forming catalyst, which is either an organic peroxide or an azo-compound, and the reaction is suitably carried out in an inert organic solvent. A molecular weight regulator, e.g. a chlorinated or unsaturated hydrocarbon, may also be present.  Preferred hydroxyalkyl acrylates and methacrylates are those in which the alkyl group contains 2-12 carbon atoms; this may optionally be substituted, for example, with halogen, and the compounds may contain 1-3 hydroxy groups. Monomers that may be used in the copolymerization are preferably aromatic with an ethylenically unsaturated side chain, e.g. styrene, vinyl toluene, x-methylstyrene, and para-chloro-styrene; butyl acryl-ate and acrylonitrile may also be employed. Preferred catalysts are organic peroxides, e.g. cumene-hydroperoxide, but azo compounds such as azoisobutyric acid dinitrile may be used; inert solvents for the copolymerization reaction may be, for example, aromatic solvents, esters, or ether-esters such as ethylene glycol diacetate.  For the polyurethane foam preparation, the preferred foaming agent is a halohydrocarbon, such as trichloromonofluoromethane, but alternatively water may be used. Any suitable organic polyisocyanate is employed and the reaction is preferably performed in the presence of catalysts; suitable catalysts are tertiary amines, and tin compounds, both organic, such as stannous carboxylates, and inorganic.  The polyhydroxyl acrylate and methacrylate derivatives are advantageously employed in admixture with conventional hydroxyl-containing polymers that are used in polyurethane production, such as hydroxylpolyesters, polyesters, polyhydric polyalkylene ethers, or polyhydric polythioethers.  Other appropriate additives may be included in the foaming mixture, such as emulsifiers, colouring agents, fillers, and foam stabilizers.  A suitable emulsifier is sulphonated castor-oil, or its sodium salt, and the preferred foam stabilizer is a silicone oil, more particularly a polydimethyl siloxane, or an alkyl-silane-polyoxy-alkylene block copolymer. Examples are given for preparation of the hydroxy alkyl methacrylate copolymers with styrene, butyl acrylate and acrylonitrile, and for the formation of foamed polyurethane products from these.  Uses of the foams depend upon their improved resistance to distortion at high temperatures, and their unusually high compressive strength.
Patent GB-972320-A (GB)
Title: Apparatus for crimping filaments
IPC: D02G1/14
Filed: 1962-04-02
Abstract: 972,320. Crimping yarns and fibres. MONSANTO CO. April 2,1962 [April 24, 1961], No. 12606/62. Heading D1F. The spacing between two crimping gears and the angle between their axes are separately adjusted by positional adjustments of a yoke on which one gear is mounted. As shown, a motor 11 drives crimping gears 13 and 21 through a shaft 16 and coupling 17 and spur gears 51, 52, shafts 49 and 22 and universal jointes 47 and 48. Shaft 22 is supported by a yoke 23 pivotally attached by pins, as at 24, to a plate 25 slidably mounted in slots in a frame 12, the pivotal and sliding movements being adjustably effected by set scres 44 and 34. A plunger 42 of an air cylinder 43 resiliently holds the yoke in the adjusted position but allows separation of the gears 13 and 21 to permit passage of an enlargement such as a knot in the yarn or filaments passing therebetween.
Patent GB-611290-A (GB)
Title: Improvements relating to hypodermic syringes
IPC: A61M5/315
Filed: 1946-04-26
Abstract: A piston for a hypodermic syringe, preferably having a glass barrel, is formed of a ceramic material (e.g. a porcelain having a coefficient of expansion substantially equal to that of the glass) and contains an insert of moulded metal or plastic material inserted in a cavity in the back of the piston after the latter has been fixed, the insert serving for the fixing of the piston rod.  The insert, which may be formed with an internal or external screw thread for screwing the piston rod thereto and may be of hexagonal shape or have ribs to prevent the turning thereof in the cavity is keyed into position by means of recesses such as undercuts or screwthreads. Where the insert is of metal a coating of a rubber-like material resistant to high temperatures, e.g. a silicone, may be interposed between the piston and the insert.
Patent GB-943119-A (GB)
Title: Improvements in or relating to reinforced rubber manufacture
Inventor: LAMM ALPHONSE
IPC: C08K9/00
Filed: 1961-04-10
Abstract: Carbon black and silica, either in solid form, or in aqueous dispersion or mixed with a rubber latex are irradiated by a , b , g or X-rays from any source to a dose of between 104 and 108 roentgen. Irradiation is preferably carried out in the presence of a sensitizer such as chloroform. The irradiated fillers may then be mixed with latex which may or may not have been irradiated itself and coagulated.ALSO:Natural or synthetic rubber latex and/or a filler either in dispersion or particulate form are subjected to an ionising radiation and the two ingredients are mixed, coagulated and, preferably, heated to develop optimum physical properties.  The synthetic rubber may be a polymer of isoprene, butadiene or chloroprene or a copolymer of butadiene with styrene or acrylonitrile. The filler may be carbon black or silica.  The radiation may come from any source of a , b , g  or X-rays and the dose may be between 104 and 108 roentgen.  Irradiation preferably is carried out in the presence of a sensitiser such as chloroform in admixture with ethanol.  Carbon black is held in dispersion with conventional agents such as an alkali salt of a sulphonated formonaphthalene compound and gum tragacanth. The irradiation may be carried out in a continuous manner.
Patent GB-1409483-A (GB)
Title: Aminosilanes
IPC: C07F7/18
Filed: 1973-03-16
Abstract: 1409483 Anticorrosive and adhesion-promoting coatings DYNAMIT NOBEL AG 16 March 1973 12894/73 Heading B2E [Also in Division C3] Anticorrosive coatings on metal and other surfaces and adhesion promotion between polymers and other surfaces are provided by #- aminosilanes of the formula wherein a is 1, 2 or 3, b is 0, 1 or 2, c is 1, 2 or 3 and b + c = a, R denotes alkyl or alkoxyalkyl, R' and R" denote H or alkyl, Z 1  and Z 2  denote hydrogen, alkyl, alkenyl, cycloalkyl, phenyl or an aminated alkyl, alkenyl, cycloalkyl or phenyl group. Surfaces protected against corrosion include asbestos, mica, quartz corundum, diatomaceous earth, sand, iron oxides, glass fibres, glass cloths, glass beads, electrocarundum, calcium carbonate and sheets, bands, mats or powders of iron, zinc aluminium, magnesium, copper, tin, titanium, brass and bronze. Polymeric materials whose adhesion to these surfaces is improved include natural and synthetic rubbers, PVC, polyethylene, phenol-formaldehyde resins, epoxy resins and polyurethane resins. The #-aminosilanes may be applied as aqueous or organic solutions. Alternatively the /3-aminosilane may be incorporated in the polymer material.
Patent GB-938451-A (GB)
Title: Reversible power-driven winch with automatic control of reverse speed
IPC: B66D3/02
Filed: 1962-04-04
Abstract: 938,451. Winches; mobile jib cranes. F. L. LAWRENCE. April 4, 1962, No. 12901/62. Classes 78 (4) and 78 (5). In a reversible winch assembly 13, Fig. 1, for a logging arch trailer 12, the cable 11 bears on a movable member 34, Fig. 6, arranged between the drum 39 and the fairlead 27 and operating to reduce the speed and eventually stop the drum 39 as the tension in the cable slackens. The device also prevents inadvertent re.winding of the cable after it has been fully paid out since continued rotation of the drum 39 past the dead-centre position e will withdraw the cable 11 from contact with the member 34 so that the drive for the drum is automatically stopped. The drum 39 is mounted on a vertical channel member 30 attached to the rear end of a motor vehicle 10. The cable 11 passes to the arch trailer 12 over a pulley 27 mounted in a fairlead 21 adapted to operate as a swivel connection for the trailer 12 so that the trailer pulley 29 and fairlead pulley 27 are maintained in alignment. The drum is hydraulically driven through flexible pipes 14, 15, Fig. 2, connected to a reversing control valve 16 normally operable through a lever 47 and link 45 attached to the lower end 20 of the valve spool. The movable member 34 engaged by the cable 11 is coupled to the upper end 19 of the spool through a crank 36 and push-rod 37 operable to engage the spool end 19 only when it is moved into the upper unwinding position. A toggle linkage 38 between the push-rod 37 and the spool end 19 may be actuated by a control lever 41 to render the push-rod 37 inoperative. Specification 932,290 is referred to.
Patent GB-397438-A (GB)
Title: Improvements in and relating to means for producing electric peak voltages
IPC: H03K3/537
Filed: 1933-05-03
Abstract: 397,438. Charging and discharging condensers. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitats-Ges.; 2, Friedrich Karl-Ufer, Berlin.) May 3, 1933, No. 12918. Convention date, May 3, 1932. [Class 38 (iv).] In a system for producing high voltages by charging condensers C in parallel and discharging them in series, the condensers are arranged so that their capacity to earth is as small as possible. Preferably each is a cylindrical wound condenser arranged within that of next lower voltage and the discharging spark gaps F are arranged in the spaces between the condenser elements.
Patent GB-832385-A (GB)
Title: Improvements in or relating to processes for preparing gas mixtures containing hydrogen and carbon monoxide
IPC: C01B3/36
Filed: 1957-04-23
Abstract: <PICT:0832385/III/1> In a process for preparing gas mixtures containing hydrogen and carbon monoxide by partial combustion of hydrocarbon material in a stream of oxygen-containing gas, the latter perhaps in admixture with steam, is injected in the form of a hollow conical jet coaxially into one end of a cylindrical combustion chamber, the length of which is less than five times the diameter, and the hydrocarbon material, perhaps mixed with steam, is introduced in the gaseous or vapour for through an opening at the same end of the combustion chamber as the conical jet with a rotary motion about the axis such that two toroidal vortices are formed in the combustion chamber, the pressure in the latter being at least 3 atmospheres. The oxygen-containing gas is fed at 2 into a pipe 1 so as to issue into the combustion chamber 4 as a hollow conical jet.  The hydrocarbon material, which may be natural gas, refinery gas or liquid fractions, boiling below 120 DEG  C., obtained from the distillation of crude oil, the liquid hydrocarbons being completely vaporized by heating, enters an annular space 10 through pipe 9 and passes through tangential slots 7 or nozzles into a chamber 8 so as to pass through an opening 5 into the chamber 4 with a rotary motion. The oxygen-containing gas may be caused to take a helical path through the pipe 1 so as to issue therefrom with a rotary motion about the axis of the nozzle, the direction of rotation being the same as that of the hydrocarbon material.  One or more conduits 14 allow the insertion of thermocouples and igniting means for commencing the process.  A reaction space 16 opens out from the chamber 4.  If steam is mixed with the hydrocarbon it may be in the ratio of 0.2 to 0.7 by weight.  The reaction may be carried out at 1200 DEG  C. to 1500 DEG  C. at a pressure of 15-20 atmospheres.  In an example, oxygen, a low-boiling point liquid hydrocarbon material obtained from the distillation of Kuwait crude oil, and steam preheated to 390 DEG  C. were passed into the combustion chamber, the pressure in which was 19 kilograms per square centimetre and the temperature 1300 DEG  C.  The resulting gas mixture had the following mol. percentages; hydrogen 53.8, methane 1.3, carbon monoxide 35.5, carbon dioxide 9.0, and nitrogen 0.4.  There was 0.7% by weight of soot.
Patent GB-914631-A (GB)
Title: Improvements in or relating to means for controlling the tension in magnetisable tape
Inventor: HALL PHILIP MERRICK
IPC: G11B15/43
Filed: 1958-04-24
Abstract: 914,631. Automatic tension control. ELECTRIC & MUSICAL INDUSTRIES Ltd. April 15, 1959 [April 24, 1958], No. 12985/58. Class 38 (4). In magnetizable tape transducing apparatus in which tape may be taken up on or released from a spool driven or braked by an electric motor, an arm moves about a pivot in response to variations in tape tension and thereby operates pressure-responsive electrical means to maintain constant tension by variation of the energization of the motor. As shown, magnetic recording tape 2 unwound from a spool 1 by a driven capstan 7 associated with pinch rollers 11 is supplied to a take-up spool (not shown). Tape tension on the input side of the capstan is automatically maintained constant by a jockey roller 3 mounted on a spring-loaded lever 4 which operates a multiple carbon pile regulator 13 controlling the energization of a motor (not shown) acting as a brake on spool 1. Movements of lever 4 are damped by a dashpot 14. A further jockey roller 9 is associated with a similar system (not shown) controlling the motor driving the take-up spool to maintain tape tension constant on the other side of the capstan. The arrangement also maintains the tensions constant when the tape is transported in the reverse direction. For fast spooling the carbon pile resistance associated with the take-up drive is arranged to be short-circuited when the pinch rollers 11 are freed. The Provisional Specification refers to cam adjustment of the end of the carbon pile remote from the lever and to compression by this cam during fast spooling.
Patent GB-586432-A (GB)
Title: Improvements in the manufacture of fluorescent screens
IPC: H01J9/22
Filed: 1943-08-11
Abstract: 586,432. Luminescent materials. GENERAL ELECTRIC CO., Ltd., BOWTELL, J. N., JENKINS, H. G., and MILES, E. E. Aug. 11, 1943, No. 13026. [Class 39 (i)] In manufacturing luminescent screens by allowing finely divided material to settle from a liquid suspension on to a support, the liquid used is water containing a small proportion of surface active substance. The luminescent substance may be willemite. Cetyl-triethylammonium bromide, cetyl tri-methylammonium bromide, and diocetyl ester of sodium sulphosuccinic acid are suitable surface active substances. Specification 456,755 is referred to.
Patent GB-368133-A (GB)
Title: Improvements in loading coil boxes
IPC: H02G15/12
Filed: 1931-05-02
Abstract: 368,133. Inductances ; junction boxes. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm. May 2, 1931, No. 13035. Convention date, May 5, 1930. [Classes 37 and 38 (i).] The casings 8 of loading coils are detachably secured to the walls 5 of a distribution box 4 mounted vertically in the outer protective coil box 1. Some of the cylindrical supports 9 for the casings 8 are engaged by leading-in tubes 10 provided at their free ends with starshaped clamps 17 which can be rotated to release the casings 8. The main cable 11 is branched through each tube 10 and connected to the junction cables 14 by splices 13 protected by lead sleeves. The distribution box 4 is filled with an insulating compound 18 and the inner walls of the box 1, casings 8, and connecting leads are coated with bitumen.
Patent GB-1021134-A (GB)
Title: Thermocouple
IPC: H01L35/20
Filed: 1964-03-26
Abstract: Alloys used in the construction of thermocouple limbs (see Division H1) include from 96-98% tungsten and from 2-4% rhenium, or from 74-80% tungsten and 20-26% rhenium and may include traces of thorium oxide, potassium or aluminium to retard grain growth.  Typical alloys are 97W:3Re, 95W:5Re, 75W:25Re, 74W:26Re. Such limbs are used with leads of 96-99% copper, 0.5-3% nickel and 0-1.5% manganese or of 75-85% nickel, 15-25% chromium, 0-2% manganese, and 0-0.15% carbon. Preferred alloys for the leads are 98.8% Cu, 0.8% Ni, 0.4% Mn and 80% Ni, 20% Cr.  All percentages are by weight.
Patent GB-131356-A (GB)
IPC: F16B1/04
Abstract: 131,356. Kennedy, C. J. H. Mackenzie-, and McLaughlin, G. C. May 13, 1918. Steering, balancing, and regulating altitude.- Mechanism for transmitting motion to the rudders &c. of air-craft &c. is provided with a piston in a cylinder full of oil or other liquid, which automatically prevents movement of the driven member until a passage is opened by the driving member to permit the liquid to pass from one side of the piston to the other. In the form shown, the piston 4 in the cylinder 1 is connected to hollow piston-rods 3, and provided with passages 5 adapted to be closed by spring-pressed annular valves 6. A longitudinally movable disk 9 in the piston is connected by rods 12 with movable blocks 13, to which are attached the actuating rods 14 for transmitting power. Wires 16, for controlling the rudder of an aeroplane &c., are attached to blocks 15 fixed in the ends of the piston-rods 3. Springs 10 normally hold the disk 9 in a central position between the valve-stems 7, and the valves 6 then prevent passage of the liquid through the passages 5 and thus prevent movement of the piston by either of the wires 16. When the rod 14 on the right is pulled to move the rudder &c., it first pulls the dish 9 against the stems 7 and opens the valve 6 as shown, to permit liquid to pass through the piston, and then draws the piston and rudder-wires 16 to the right. When the rod 14 is released, the valve 6 is automatically closed by the springs 8, and the piston is locked until again operated by pulling one of the rods 14. The ends of the piston rods 3 may be sealed by oil in annular passages 2a, connected, as shown, with a reservoir 18.
Patent GB-479921-A (GB)
Title: Improvements in and relating to shoes
IPC: A43B3/12
Filed: 1936-05-09
Abstract: 479,921. Sandals. BUXBAUM, S. May 9, 1936, No. 13150. Void. Convention date, Oct. 25, 1935. [Class 17 (ii)] The upper of a shoe or sandal is formed by attaching to a sole-member one or more flat, round, or plaited straps, preferably by lacing the straps through holes in the sole, to form loops and interconnecting these loops by rings. In the form shown, two straps are provided, one 3 for the forepart and the other 4 for the heel, and the loops formed by passing these through holes 2 in the insole 1, or in a welt or a separate sole, are held together by rings S. The portions of the loops are held in position by notches 5 in the sole-member to which they are attached.
Patent GB-372094-A (GB)
Title: Improvements relating to shirts and like garments for personal wear
IPC: A41B7/06
Filed: 1931-05-05
Abstract: 372,094. Shirt sleeves and cuffs. DESMOND, J., 22, Addle Street, London. May 5, 1931, No. 13229. [Class 141.] Reversible double cuffs are made detachable from the sleeve, the wristband 6 of which is provided with a pair of tabs 9 for engaging slots 8 disposed normal to the longitudinal axis of the cuff. The cuff is made, as shown, with link holes 5 through which a link or the like passes as well as through corresponding holes 10 in the wristband. The cuff is foldable along a line 2.
Patent GB-132444-A (GB)
IPC: A43B21/433
Abstract: 132,444. Barnes, W. H., and Vaudrey, H. March 4, 1019. Protectors, securing.-A revoluble rubber heel A, Fig. 4, provided with a stud a is retained by a slotted metal plate C and a slide D which closes the slot through which the stud a is introduced. The slide D is secured by a nail d, but in a modification, Fig. 8, the slide D is retained by a metal clip E.
Patent GB-802320-A (GB)
Title: Moisture excluding means for electrical cable or cord connectors of the plug and socket type
IPC: H01R13/52
Filed: 1957-04-25
Abstract: 802,320. Two-part couplings. CABLE MAKERS AUSTRALIA PROPRIETARY, Ltd. April 25, 1957 [May 4, 1956], No. 13248/57. Class 38 (1). A socket connector 4 carries a resilient, channel-shaped sealing collar 7 embracing a peripheral bead 6 on the socket and adapted to snap over a bead 5 on the plug connector 3. The bead 6 is spaced from the outer face of the socket so that an oversize plug or a wrongly applied plug will slide the collar clear of said outer face. The collar may be mounted on the plug.
Patent GB-836881-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J31/12
Filed: 1956-04-30
Abstract: 836,881. Cathode-ray tubes. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 30, 1956 [May 2, 1955], No. 13256/56. Class 39(1). A " flat " cathode-ray tube suitable for use in television reception, of the type described in Specifications 794,257 and 801,841 in which an electron beam is deflected out of a plane parallel and adjacent to the flourescent screen into impingement with it, has all the deflecting, accelerating and focusing electrodes, apart from the gun electrodes, and the fluorescent screen, provided as coatings on the envelopes, the envelope consisting of two moulded glass parts 10, 11, Figs. 2, 3, joined together at 8 by sintered glass frit. The two parts are shaped and coated with conductive material such as tin oxide or paints compounded from glass frit and silver, to provide U-shaped horizontal sweep deflection electrodes 20 skirted accelerating electrodes 21, 22, first and second pairs of focusing electrodes 27, 28 and 31, 32, and vertical sweep deflection electrodes 14. A conductive base coating 13 for the fluorescent material of the screen may consist of a suspension of chromium oxide and silicic acid. Both the screen material, including the phosphor, and the deflection electrodes 14 may be transparent, or the deflection electrodes may be opaque and the screen viewed from one side only. Non-conductive material such a as chrome oxide solution, or a high-resistance leakage material such as stannic chloride may intervene between the electrode coatings. The gun 12 may be disposed within a cavity formed by the two moulded parts of the envelope and delivers the beam along the vertical edge of the screen ; the beam is bent through 90 degrees at the corner of the screen by an electrostatic mirror to pass along the lower edge of the screen. In a further embodiment, Fig. 4, the envelope has a ledge portion 55 bearing a further electrode 56 which cooperates with the lowermost of the deflection electrodes 58 to provide a strong deflecting action ; strong deflecting actions at the other electrodes 58 are obtained by the potentials of two adjacent electrodes changing at the same instant. The initial potential on electrodes 58 may be positive or negative with running negative or positive potential waves respectively.
Patent GB-1062098-A (GB)
Title: Ignition distributor for internal combustion engines
IPC: F02P5/10
Filed: 1964-04-01
Abstract: 1,062,098. Timing ignition. ROBERT BOSCH G.m.b.H. April 1, 1964 [April 9, 1963], No.13409/64. Heading F1B. In an ignition timing device a vacuum responsive adjuster 11 is connected through a forked passage to two spaced apart ports 18, 20 in the engine carburetter, one port being at the carburetter Venturi and the other being adjacent the throttle valve, the passage containing a restriction 23 between the vacuum sensitive member 12 and the point where it forks to the two ports. As shown the restriction may be fitted into a connecting socket of the vacuum responsive adjuster, and the carburetter end of the passage may contain another restriction 231. The pipe bores at immediately opposite sides of the restriction may be different from one another. A connecting pipe between the carburetter and the vacuum responsive adjuster may be constructed as a restriction.