baber/WOPTO huggingface dataset:
Patent GB-1200741-A (GB)
Title: Improvements in grinding or cutting discs
IPC: B24D3/06
Filed: 1967-05-18
Abstract: 1,200,741. Grinding. DAMPCOURSE INSERTIONS (SALES) Ltd. 29 April, 1968 [18 May, 1967], No. 23109/67. Heading B3D. A metal disc or wheel for cutting stone or mortar comprises a soft metal matrix with particles of tungsten carbide embedded therein welded to its periphery in the form of a continuous band or interrupted sections. The disc 10 may be of stainless steel and have a central boss 13. The tungsten carbide particles are embedded in the matrix 11 which may consist of brass and extends around the periphery of the wheel with a thickness of # inch the thickness of the disc being <SP>1</SP>/ 16  inch.
Patent GB-888046-A (GB)
Title: Improvements in or relating to organic polymer mixtures
IPC: C08L29/04
Filed: 1960-07-01
Abstract: In a process for preparing moulded, extruded, pressed or calendered articles, from a mixture of polyvinyl alcohol with a water-insoluble organic polymer, 5 to 100 parts of polyvinyl alcohol in the form of an aqueous solution are mixed with 100 parts of the insoluble organic polymer, whereafter the mixture is dried by any suitable procedure and then worked on conventional machines.  The organic polymers may be natural rubber; polymers of ethylenically unsaturated compounds many suitable monomers for the preparation of which are listed; phenol-aldehyde resins, e.g. derived from phenol, resorcinol, formaldehyde and acetaldehyde; alkyd resins, e.g. derived from glycol, 1,3-pentanediol, adipic acid and phthalic acid; polyamides, e.g. obtained by the reaction of trimethyl adipic acid and hexamethylene diamine; polymers of ethylene oxide and tetrahydrofuran; aminoplasts, e.g. urea-formaldehyde or aniline-formaldehyde polymers; natural rosins and gums; and cellulose, cellulose esters or cellulose ethers.  Examples describe compositions comprising polyvinyl alcohol and (I and II) natural rubber; (III and IV) butadiene-acrylonitrile copolymers; (V) a butadiene-styrene copolymer; (VI) polychloroprene; (VII) an isobutylene-isoprene copolymer; (VIII) polyvinyl chloride; (XI) a vinyl chloride-vinylidene chloride-ethyl acrylate copolymer; (X) polyvinyl acetate; (XI) polyethylene; (XII) nylon; (XIII) a butadiene-styrenevinyl pyridine copolymer; (XIV) polymethyl methacrylate; and (XV and XVI) a mixture of butadiene-acrylonitrile copolymers with polyvinyl chloride.  The compositions may also comprise fillers, e.g. carbon black, titanium dioxide and silica, and those containing rubbers may be compounded with conventional vulcanizing ingredients and vulcanized.
Patent GB-1418046-A (GB)
Title: Gas taps
IPC: F16K3/26
Filed: 1973-05-15
Abstract: 1418046 Valves EWARTS Ltd 12 June 1974 [15 May 1973] 23196/73 Heading F2V A gas tap has an axially movable plunger 30 for controlling flow between an inlet 46 and an outlet 18, the plunger having a reduced diameter portion 32 slidable in the outlet 18 and formed with a tapered nose 34 and radial bores 40 which communicate with an axial bore 42 and open at the surface of the portion 32 between the 0-ring seals 36, 38. The plunger is moved axially by a pin 66 sliding in an axial slot 70 in the housing and a cam slot 68 in a rotatable sleeve 60. The bores 40, 42 may be replaced by an axial groove along the tapered nose, 0-ring seal 38 being dispensed with.
Patent GB-1424650-A (GB)
Title: Open ended spanner
IPC: C25B9/17
Filed: 1974-05-23
Abstract: 1424650 Open ended spanners E S BOOCOCK 23 May 1974 23197/74 Heading B3N An open sided spanner head has an interior shape having 120 degree interior corners to fit a hexagonal nut or bolt but with protrusions at the tips of the jaws to fit round the corners of the nut or bolt nearest the tips of the spanner jaws. The interior shape may have the corners spaced apart by 60 degrees, Fig. 1 or 30 degrees, Fig. 2. (For Figures see next column.)
Patent GB-1386878-A (GB)
Title: Programme control devices
IPC: G05B19/04
Filed: 1972-05-17
Abstract: 1386878 Automatic control of knitting machines FRANZ MORAT GmbH 17 May 1972 [16 June 1971] 23262/72 Heading G3N A programme control system includes a store of expected code signals each of which controls an operation of the working parts of a machine wherein each machine operation generates a code signal which is compared with the expected code signal to generate on agreement, a reading clock signal which advances the store and reads the information therein. In the circular knitting machine shown respective needle selectors 51 are controlled from programme store 50 through AND gates 97 which are enabled by pulses derived from the machine itself from sensor 93. The store 50 is read by a reading clock signal produced by comparator 48 which compares the coded energization of lines a, b and a', b'. Signals on a, b represent the machine position and are derived from photo-electric or other sensors 17, 19 cooperating with the rotating segmented disc 11. The signals on a', b', which are the expected code, are generated by counter 49 which is incremented by the reading clock pulse as is the programme store. The comparator arrangement may have the signals a', b' derived from the signals a, b by a gating arrangement, Fig. 4 (not shown). The sensing disc arrangement may be replaced by a device for sensing the machine position directly. For fault free work each needle may be scanned at 67 and the resultant code signal passed to an address register 69 so that comparator 71 can be used to ensure that store 50 is addressing the correct needle.
Patent GB-750585-A (GB)
Title: Improvements in fastening devices for doors and the like
Inventor: CAMPBELL RALPH
IPC: E05C17/16
Filed: 1954-08-10
Abstract: 750,585. Door fastenings. TANNEN, A. Dec. 7, 1954 [Aug. 10, 1954], No. 23276/54. Class 44. A fastening device for a door or the like to limit the angle of opening of the door comprises an arm 9 pivoted at one end to a member 11 on the jamb post of a doorway or the like, and a sliding bolt 8 carried by a member on the door or the like and at one end formed with a part 8b slidably interengaged with the arm 9 so that upon opening the door the arm is moved about its pivot, the free end of the arm being formed with an abutment to limit the opening movement of the door and the bolt-head being disengageable from the arm by rotation of the bolt on its axis. As applied to a door lock in which a latch 3 is retractable by a knob 4 on one side of the door and by a barrel lock on the other side, the lock casing 1 houses the bolt 8 and the arm 9 is pivoted through pins 12, 13 to the lug 11 on a keeper box 2 and is biased to the position shown in Fig. 1 by a torsion spring 13<SP>1</SP>. The end of the bolt 8 is formed with a tapering portion 8a and the head 8b has flats 8c thereon by which the head is retained between side flanges of the arm 9 as the bolt rotates the arm towards the position shown in Fig. 3. The bolt is disconnected from the arm 9 by rotation through 90 degrees by means of a turn button 8e and also may be withdrawn from the arm 9 by a lever 16 which is engaged with a pin 8d on the bolt when the lock is operated by a key to retract the latch 3.
Patent GB-910847-A (GB)
Title: Improvements relating to the sterilisation of surgical and hypodermic equipment
Inventor: EVERIETT FREDERICK CHARLES
IPC: A61L2/26
Filed: 1960-07-04
Abstract: 910,847. Sterilizing containers. EVERETT & CO. Ltd., S. & R. J. June 27, 1961 [July 4, 1960], No.23295/60. Class 81 (1).  A container for use in a dry heat sterilization process includes in its wall a filter of which the pore size is smaller than 0.3 microns to prevent the passage of viruses. As shown in Fig. 1 the container 1 which is of a size just large enough to hold a hypodermic syringe has the top enlarged at 2 for the reception of the flange of the syringe and is fitted with a cap 3 of rubbery material which is preferably silicone rubber held by means of a loop of wire 4 extending from a ring 5 located between ridges 6 in the body of the can. The mouth of the can is flared at 7 so as to enable the cap to be held in position by means of a length of self-adhesive tape 8. The cap 3 includes a filter 12, the main body of which extends through an opening in the cap and which also includes a flange portion 13 which is located between the body of the cap and the flared rim 7 of the can 1. The body of the filter is formed of sintered ceramic material, the particles of which are sufficiently small to give a pore size slightly smaller than 0.3 microns. In a modification (Fig. 2, not shown) the cap itself is porous and is preferably made of a silicone rubber which is rendered porous by the incorporation of small particles e.g. of common salt in the original mix which are subsequently leached out after the rubber has been cured. In a further modification shown in Fig. 3 the filter is formed of four membranes 14 of porous rubbery material produced as disclosed above and arranged in series, and separated by spacing washers 15, the assembly being held in position by a lip 16 surrounding an opening 17 and pressed against the lip by a screw threaded ring 18. The opening 17 is formed in a metallic disc 19 which forms part of the cap, the remainder of which is constituted by a silicone rubber cover 20 which fits over the flared rim of the can in the same manner as illustrated in Fig. 1, the filter unit being thus replaceable by removal of the screwed ring 18.
Patent GB-407693-A (GB)
Title: Method for the automatic control of aviation engines
IPC: F02M7/17
Filed: 1932-08-19
Abstract: 407,693. Spray carburetters; regulating. SOC. DU CARBURATEUR STRATOS, (formerly SOC. DU CARBURATEUR BLERIOT), 43, Avenue de l'Opera, Paris. Aug. 19, 1932, No. 23351. Convention date, July 2. [Classes 7 (iii) and 7 (vi).] Aircraft engines are regulated in accordance with atmospheric pressure, either as regards cylinder charge or mixture strength, by a regulating member urged in one direction by the pressure of the atmosphere and, in the other direction, by the pressure of a fluid which is kept constant by means of a member controlling the admission and discharge of the fluid, the controlling member being urged in one direction by the fluid pressure and in the opposite direction by a constant force. A floating piston in the carburetter outlet carries a baffle 20 adapted to be rotated through an arm 17 and link 16 by a regulating member in the form of a piston 8 subjected on one face to the combined action of atmospheric pressure and an adjustable spring 9 and, on the other face, to the pressure of oil in a space 22. The oil enters the space at 12 and leaves at 15, the inlet and outlet being controlled by a rod 6 on a piston 2, the rod having a bore 11 in its inner end. The piston 2 is subjected on its outer face to atmospheric pressure and on its inner face to a pressure, which may be below or above that of the atmosphere but differing therefrom by a constant amount, and may be derived either from the suction space of the carburetter, a column of liquid or from means expressly provided. Variations of atmospheric pressure produce movements of piston 8 and corresponding changes in the pressure of the oil, with the result that the rod 6 is actuated to admit or discharge oil to maintain the pressure thereto constant.
Patent GB-1385425-A (GB)
Title: Apparatus for starting and protecting of electric motors
IPC: H01H61/00
Filed: 1972-05-18
Abstract: 1385425 Thermal switches TEXAS INSTRUMENTS Inc 18 May 1972 [19 May 1971] 23376/72 Heading H1N Apparatus for starting and protecting a motor having a main winding MW and a start winding SW comprises thermal elements 32 and 72 and a common heater 52 all mounted on the same base 12. Element 32 is a creep acting bimetal and element 72 is a dished snap-acting bimetal. In operation the current passes from line 78 through bimetal 72 and heater 52 to terminal 38 where it divides, part going through bimetal 32 and start winding SW and part going through main winding MW. Bimetals 32 and 72 are heated by common heater 52 and also by the current through them. When bimetal 32 has reached a predetermined temperature, contacts 40 (on the end of bimetal 32) and 42 open and are kept open by heat from heater 52. On overload, bimetal 72 overheats and snaps open contacts 74 (on the end of bimetal 72) and 76. Calibration of bimetal 72 is effected on assembly by bimetal 72 being mounted on a splined stud 60, Fig. 6a (not shown), and pressing stud 60 into a mounting eyelet 64 in the base until the desired contact pressure and opening temperature are obtained. A shunt heater 84, Figs. 9, 10 (not shown) may be connected across terminal 38 and 44 to assist in holding element 32 in the open position, the resistance of heater 84 being chosen to avoid overheating of the start winding by current through heater 84.
Patent GB-718670-A (GB)
Title: New or improved stripper arrangement for keeping the rolls of roller mills clean
IPC: B02C4/40
Filed: 1952-09-22
Abstract: 718,670. Roller mills. MIAG MUEHLENBAU UND INDUSTRIE GES. Sept. 22, 1952 [Sept. 22, 1951], No. 23661/52. Class 59 A stripper comb 4 as claimed in Specification 685,823 is clamped against a spring-pressed metal supporting bar 5 by means of screws 6, the washer 61 of each of which bridges an oblong hole 41 in the comb so that should a gap occur between the prongs 3 of the comb and the grinding roller 2. the end 42 of the comb may be struck bv a hammer to close the gap. The stripper comb may be composed of a number of pieces of similar crosssection with clamping screws disposed between each two pieces.
Patent GB-1440938-A (GB)
Title: Rod and bar mill
IPC: B21B13/18
Filed: 1973-05-18
Abstract: 1440938 Rolling mills A I WILSON 16 May 1974 [18 May 1973] 23699/73 Heading B3M A roll stand for rod or bar includes a pair of work rolls 24, 25 which are so supported in the stand that their axes each follow a closed path, the rolls being rotated about their axes to pro vide a feeding movement for the rod or bar. Each roll is carried by a pair of pivotal arms 17, 18 which are supported in the stand by an eccentric shaft 15 and coupled to the stand by links 23. Rotation of the shaft causes the roll to follow a generally elliptical path (Fig. 5A) and to contact the work only during a portion of each path. A gear-box (Fig. 2) with an input shaft 30 (and optionally a separate input shaft for driving the rolls ) drives the eccentric shafts and rolls at different speeds. The peripheral speed of the rolls as they contact the work is designed to provide the feeding force. Several stands may be arranged in tandem, with feed rolls and twist guides between them, and the lengths of the links 23 may be increased to ensure that the elliptical paths of the rolls are inclined to the work axis (Fig. 7, not shown). The rolls may have several grooves to provide multistrand rolling, and may each have one or more backing rolls.
Patent GB-517748-A (GB)
Title: Improvements in and relating to presses for cutting sheet metal
IPC: B21D28/08
Filed: 1938-08-11
Abstract: 517,748. Punching. RHODES, C. J. Aug. 11, 1938, No. 23724. [Class 83 (iv)] MetaL - sheet feeds.-In a " stagger " type of sheet-metal punching-press with a step-by-step feed first in one direction and then after displacement in the opposite direction, each time the final perforation of a row is made on the forward traverse a reciprocating trip member 25 engages a lever on the control means of the displacement slide so that displacement is effected immediately the punch is disengaged from the sheet. The gravity feed displacementslide and its control means is traversed with the work. The press, including the feed and blank transferring mechanism, is described in Specification 490,291. The trip 25 is adjustably fixed to a slotted bar 29 provided at one end with a boss 29a, the boss and trip being slidably mounted on a rod 26 carried in brackets 11a, 28. A pin 34 on the boss engages a slot in a lever 32 pivoted on a pin 30 adjustably clamped in a slot in the bracket 28. A spring 35 normally presses this lever against a stop 36 on the boss. Each time the arm 8c rocks to effect the step-by-step forward traverse it engages the lever to move the trip 25 towards the machine. The Provisional Specification refers to movable trips at both sides of the traverse and to Specification 491,305.
Patent GB-750989-A (GB)
Title: Torque multiplying spanner for use in assembling structures
Inventor: WRAGGE WILLIAM BENJAMIN
IPC: B25B13/46
Filed: 1952-07-04
Abstract: 750,989. Spanners. LEDLOY, Ltd. Sept. 29, 1953 [July 4, 1952; Sept. 18, 1952], Nos. 23850/55. Divided out of 750,892 and 23422/52. Drawings to Specification. Class 61  In a method of assembling structures which involves the tightening up of a fastening assembly (e.g. the tightening of a nut on a bolt) with a torque multiplying spanner, the reaction torque which is produced in the operation of the spanner is taken upon a part of the fastener assembly which is subject to frictional resistance acting to prevent rotation of such part about the axis of the fastener assembly being frictional resistance which is established by virtue of the tightening force applied to the fastener assembly and the structure which is in engagement. In a preferred embodiment the spanner disclosed in Specification 750,892, and the studs described in Specification 750,894 [Group XXIX], are used.
Patent GB-153436-A (GB)
Title: Improvements in and connected with curtain rods or poles
IPC: A47H5/06
Filed: 1919-09-30
Abstract: 153,436. Kimber, W. E. Sept. 30, 1919. Addition to 118,069. Curtain poles and rods.-In a curtain pole or rod of the type described in the parent Specification, the pulley 5 is provided with two grooves, the groove 8 receiving the endless cord 4 and the groove 9 receiving the enlarged portion 12 of the antifriction rollers 6 carried by the bracket 7. The groove 9 is fitted with a ring or band 10 of india-rubber &c. and the part of the rod 1 that bears on rollers at the other end is similarly provided with a ring or band of the same material.
Patent GB-172691-A (GB)
Title: Improvements in and connected with screw-drivers
IPC: B25B15/00
Filed: 1921-04-16
Abstract: 172,691. Marlin, A. April 16, 1921. Screwdrivers.-A cruciform ended screwdriver of the kind in which the blades are tapered from the stem to the gripping edges comprises a tapered stem B and four tapered blades C the blade lying in the same plane being of greater width than the stem so that shoulders E are formed at the junction of the stem and blades.
Patent GB-1110015-A (GB)
Title: Photographic colour print materials
IPC: C25D13/00
Filed: 1965-06-04
Abstract: 1,110,015. Colour print materials. KODAK Ltd. June 4, 1965 [June 5, 1964J, No.23941/65. Addition to 1, 072, 915. Heading G2C. A colour print material comprises a white reflecting support and in at least one silver halide emulsion layer thereof below the top emulsion layer a dispersion of a water-insoluble fluorescent brightening agent dissolved or dispersed in a waterinsoluble liquid which has a h.p. greater than 175‹C. and which is a solvent for the fluorescent brightening agent. The water insoluble liquid may contain a phenolic colour coupler or a-pivalyl-2- chloro-5-[y-(2, 4-di - t-amylphenoxy)butyramido] acetanilide. Numerous water insoluble acids, alcohols, amides, carbamates, esters e.g. dibutyl phthalate, ketones, ethers, sulphonamides sulphones and ureas are listed. The dye formed by the coupler may extinguish the fluorescence of the brightening agent and UV absorbers may be included in the layer below the brightening agent. Specified brightening agents are 2-(4'-stilbenyl)- 1, 4, 5-triphenylimidazole, 4-dimethylamino-4'- lauroylamidostilbene, 1-[4-{2, 4 -di-t-amylphenoxy acetamido} phenyl]-4-phenylbota- 1,3 -diene, 7-diethylamino-4-methyl coumarin, 3-ethoxy carbonyl-5, 6-benzocoumarin, diethyl succinyl succinate, 1, 4-bis-(2-benzoxazolyl) benzene, cis-1, 2-bis-(2-benzoxazolyl) ethylene, cis-1, 2- bis(2-benzimidazolyl)ethylene, 3-(5-hydroxy-2- phenyl oxazol-4-yl methylene) isochroman-1, 4-dione and 3-phenyl-7-(2-{dimethyl-aminoethyl} ureideo) coumarin.
Patent GB-599403-A (GB)
Title: Improvements in the production of substituted butanones
IPC: C07C49/172
Filed: 1945-09-17
Abstract: 1-(3,4-Dihydroxycyclohexyl)-1,2-dihydroxy-butanone is prepared by oxidation of b -(1,2,5,6-tetrahydrophenyl)-vinyl methyl ketone. Oxidation may be effected in aqueous suspension with a solution of the oxidizing agent, for example 1-7 per cent potassium permanganate or hydrogen peroxide or sodium chlorate.  Temperature is preferably not above room temperature, e.g. 0-15, especially 0-5 DEG  C., rising towards the end with final heating to about 100 DEG  C.  The product may be partially or completely esterified or etherified, for example with acetic anhydride or dialkyl sulphate.  Acetates, propionates, butyrates, acrylates, succinates, phthalates and hexahydrobenzoates are specified esters while ethers are methyl, ethyl, propyl, butyl, lauryl and benzyl and ethers of polyhydric alcohols, e.g. ethylene glycol, propylene glycol, and glycerol.  The products are plasticisers, especially for cellulose acetate.  The starting material may be prepared by reacting acrolein with butadiene-1,3 to give 1,2,5,6-tetrahydrobenzaldehyde and condensing with acetone in the presence of potash.  In examples: (1) the oxidation is effected in aqueous suspension with 6.3 per cent permanganate, the product after filtration being extracted with ether; (2) the product is refluxed with acetic anhydride to produce 1-(3,4-diacetoxycyclohexyl) - 1,2 - diacetoxybutanone; (3) 1-(3,4-dihydroxycyclohexyl)-1,2-dihydroxy-butanone in diethyl ether is treated with sodium to maintain slow boiling, dimethyl sulphate then added and after refluxing, the solution filtered, ether removed and 1-(3,4-dimethoxy-cyclohexyl)-1,2-dimethoxybutanone isolated.
Patent GB-782175-A (GB)
Title: Improvements in cloches and other horticultural structures
IPC: A01G13/04
Filed: 1954-08-18
Abstract: 782,175. Cloches. LAMB, M. D. T. Nov. 17, 1955 [Aug. 18, 1954], No. 23980/54. Class 20(1) A cloche &c. is built up of frame-like panels each of which is covered on both sides with flexible transparent sheet material thus enclosing an air space 9 for insulation. The end panels are similarly encased in transparent sheet material which may be originally in the form of a tube. The panels are erected on a frame of base boards 2a and side boards 15. The side panels Fig. 1 have pegs 10 to engage in holes in a skeleton frame 8 which frame also supports the roof panels. The base boards 15, Fig. 6, can be pivoted up about screws 17 for ventilation.
Patent GB-1506308-A (GB)
Title: High temperature high pressure apparatus having a ductile driver element
IPC: B01J3/06
Filed: 1976-06-10
Abstract: 1506308 High pressure apparatus KENNAMETAL INC 10 June 1976 [12 June 1975] 24004/76 Heading B1X In a high-temperature, high-pressure (e.g. diamond-making) piston-and-cylinder apparatus in which the charge is surrounded by an insulating sleeve, there is located between the piston and the end of the sleeve a driver element made of material which is ductile, electrically conductive and softer than the material of the sleeve at the temperature and pressure of use, so that as the piston advances, the driver element deforms into the sleeve and transmits pressure to the charge without deforming the sleeve. The sleeve may be of pyrophillite and the driver element of lead. Electric current for heating the charge passes thereto via the driver element.