baber/WOPTO huggingface dataset:
Patent GB-1423720-A (GB)
Title: Process for the preparation of foam polyamide
IPC: C08G69/18
Filed: 1973-04-25
Abstract: 1423720 Foamed polyamides BRIDGESTONE TIRE CO Ltd 25 April 1973 [27 April 1972 (2)] 19678/73 Heading C3C A polyamide foam is made by the ring- opening polymerization of a lactam in the presence of a boric catalyst, a promoter and a foaming agent by (A) preparing a mixture of the lactam and the catalyst at a temperature above the m.p. of the lactam, (B) preparing a flowable mixture of the promoter and the foaming agent at room temperature (i.e. 20- 40‹ C.) at least one of these materials being a liquid at room temperature, (C) mixing A and B at a temperature above the m.p. of the lactam with vigorous agitation in a mixing vessel to initiate polymerization and (D) discharging the polymerization mixture into a mould before more than 10% of the lactam has been polymerized to the polyamide and allowing the polymerization to be completed. In the examples mixtures of (A) #-caprolactam with sodium caprolactam (as catalyst) and (B) hexamethylene diisocyanate, benzoyl chloride and/or acetyl caprolactam (as promoters), toluene and/or hexane (as foaming agents), a silicone oil (as foam stabilizer) and optionally #- caprolactam, were continuously mixed together and then discharged on to a moulding surface to form foams.
Patent GB-615935-A (GB)
Title: Improvements in and relating to sliding clasp fasteners
IPC: A44B19/32
Filed: 1946-07-02
Abstract: 615,935. Sliding-clasp fasteners. CARR FASTENER CO., Ltd., and PARKIN, L. July 2, 1946, No. 19790. [Class 44] Each stringer of a water-tight sliding-clasp fastener, shown in section in Fig. 2, is provided with a waterproof flexible covering 8 of rubber or the like through which the fastener elements 10 project and which includes a pair of beads 12 on each side of the fastener elements. The arrangement is such that when the slider 16 is operated it passes over the beads 12 which are held between the opposed fastener elements and are tightly pressed together on each side. The sides of the elements are recessed, forming seats 13 to accommodate the beads, the cover 8 being in tension between the seats and the recessed backs 14 of the elements. The cover, Fig. 3, is made by extruding or moulding and is slotted at 9 to pass the elements, a web 11 being positioned between each pair of elements. The parts of the cover between the slots 9 are made wider than the pitch of the elements 10 to obtain a greater water-tightness. The cover may be stuck to the stringer. In a modification, Fig. 9, the cover comprises a flat slotted strip 17 and two moulded side strips 19 having beads 20.
Patent GB-1544426-A (GB)
Title: Industrial truck having a rotatable and translatable load carrier
IPC: B60K17/04
Filed: 1976-05-13
Abstract: The fork-lift truck has a load carrier which is rotatable about a vertical axis as well as displaceable in a horizontal plane. A first motor (1), by means of a shaft (2) and further power-transmission means, serves to perform the rotary movements of the load carrier. A second motor (3) and power-transmission means allocated to it serve to perform the displacement movement. The motors (1, 3) or the power-transmission means allocated to them can be connected in synchronous phase by means of a coupling (18) which is driven via chain drives (4, 5, 6; 12, 13, 15). This enables the rotary and displacement movements to be carried out in synchronism or independently of one another. <IMAGE>
Patent GB-388288-A (GB)
Title: Improvements in or relating to a divan or easy chair convertible into a bed
IPC: A47C17/207
Filed: 1932-07-13
Abstract: 388,288. Bedsteads convertible into seats. GRASSIAN, L., 54, Faubourg St-Antoine, Paris. July 13, 1932, No. 19830. Convention date, Sept. 4, 1931. [Class 52 (ii).] An armchair convertible into a bed comprises a fixed frame to which are hinged a seat and a back and within which is a rising mattress member, the seat, back and mattress member being so connected that when the seat is swung into the horizontal or bed position, the back hinges rearwardly into this position and the mattress member simultaneously rises in the frame. Fig. 1 shows the device folded and arranged for use as a chair and in Fig. 2 it is shown unfolded for use as a bed. The back 3 is hinged to the fixed frame 1 at 13 and the seat 2 is hinged at 12. Extensions 5 are attached to the back 3 and are pivoted to links 6 having pin-and-slot connections 18 with the seat 2. A frame 4 is pivoted in the back 3 and can swing in the direction of the arrow f to form a bolster rest. When the frame 4 is being so moved, it releases a latch 16, 17 holding the parts 2, 3 together. The movement of the seat part 2 in the direction of the arrow f2 causes the back part 3 to move simultaneously, this motion being limited by links 9 pivoted to the fixed frame 1 and having slots engaging pins on the links 6. The rising mattress frame 15 is caused to move vertically in the base 1 when the parts 2, 3 are opened, the frame 15 being connected to the part 2 by links 7 and to the part 3 by straps 11. It is guided in its movement by levers 8, 10.
Patent GB-220792-A (GB)
Title: Improvements in frying pans
IPC: A47J37/10
Filed: 1923-12-17
Abstract: 220,792. Pearce, R. G., and Goldsmith, A. B. Dec. 17, 1923. Frying-pans. - To allow for circulation of fats &c., the inside surface of the bottom of a frying-pan is formed with a series of upwardly-projecting pyramidal points, Figs. 2 and 4, which prevent food from touching the actual bottom of the pan.
Patent GB-699744-A (GB)
Title: Improvements in or relating to measuring and calculating devices
IPC: G06G1/14
Filed: 1950-08-10
Abstract: 699,744. Calculating-apparatus. HUNTER, J. R. July 18, 1951 [Aug. 10, 1950], No. 19934/50. Class 106 (i). A calculating device, for use in checking a multi-cylinder oil engine for power balance, comprises scales for taking measurements on an indicator diagram, and nomogram scales for computing mean cylinder pressure from the measurements. The measuring scales comprise a base line b with vertical lines c and d marking the limits of the indicator diagram m. The line c is graduated for measuring the height of the diagram, and an inclined line f for measuring its width. An alternative height scale is marked at e and is used against a diagram n obtained with a drive offset 90 degrees from normal. The nomogram comprises corresponding height and width scales hand j, together with a scale k graduated to read mean pressure against a straight edge p set against the scales h and j. The nomogram and measuring scales may be marked on a single piece of transparent material or may be provided separately.
Patent GB-769023-A (GB)
Title: Improvements in or relating to substituted 1.10-diaza-anthracenes
Inventor: GOLDBERG ALAN AUGUST
IPC: C07D471/04
Filed: 1954-07-08
Abstract: The invention comprises 9-substituted 1 : 10-diaza-anthracenes (1-aza-acridines) having, in one tautomeric form, the general formula <FORM:0769023/IV(b)/1> (wherein R represents an alkoxy group of 1-6 carbon atoms, Y represents hydrogen or a halogen (preferably in the 6-position), R1 represents a mono- or di-hydroxyalkyl group of 2-6 carbon atoms, and n is an integer from 2 to 6) and their acid addition salts, and the preparation of the free bases or their hydrohalides by heating the corresponding compound substituted in the 9-position by a halogen atom or a phenoxy or alkyl- or polyalkyl-substituted phenoxy group, with a hydroxyamine H2N.(CH2)n.NHR1, advantageously in the presence of an inert solvent. The 9-phenoxy compounds may be prepared, if desired in situ, by heating the 9-halo compounds with phenol, a cresol, a xylenol or other polyalkylphenol, or mixtures thereof, which may be used in excess to provide a solvent for the reaction with the amine.  The products of the latter reaction are useful as anthelmintics. Examples describe the interaction of 2-methoxy-6 : 9 - dichloro - 1 : 10 - diaza - anthracene with 2 - (21 : 31 - dihydroxy - n - propylamino) - ethylamine, 2 - (21 - hydroxypropylamino) - ethylamine, 2 - (21 - hydroxyethylamino) - ethylamine and 3-(21 : 31-dihydroxypropylamino)-ethylamine, of 2 - n - butoxy - 6 : 9-dichloro-1 : 10 - diazo - anthracene with 2 -(21 - hydroxypropylamino)-ethylamine, and of 2-methoxy-9-chloro - 1 : 10 - diaza - anthracene with 2 - (21 - hydroxyethylamino) - ethylamine. Additional reactants are listed.  Starting material. 2 - (21 : 31 - Dihydroxy - n - propylamino)-ethylamine is obtainable by reacting ethylene diamine with glycerol a -monochlorhydrin.  Specification 704,238 is referred to.
Patent GB-448367-A (GB)
Title: Improvements in backrests
IPC: A47C20/02
Filed: 1935-07-13
Abstract: 448,367. Bed-rests. JACKSON, J. A., 7, Suffolk Street, Birmingham. July 13, 1935, No. 20074. [Class 52 (ii)] A bed-rest or back-rest comprises a rigid back panel 7 a cushion of sponge rubber or other material on one side of the panel, a loose cover 9 detachably secured at its edges to the panel, e.g. by press-studs 10 or by drawstrings, and an adjustable support comprising frames 13, 14 hinged to the back of the panel. The panel may be secured to a frame 6 provided with notches into which the frame 14 engages for adjustment. The panel 7 may be cut away at 11, the aperture being covered with sheet rubber &c. to increase the resilience of the cushion. The frames 13, 14 may be folded flat against the panel 7, as shown in Fig. 4. Straps 21 to secure the device to a bed rail, and arms 22 adapted to fold, may be provided.
Patent GB-458573-A (GB)
Title: The manufacture of a new hydroxycarboxylic acid
IPC: C07D319/18
Filed: 1936-07-20
Abstract: An o-hydroxycarboxylic acid is made by heating an alkali metal salt of 4-hydroxypyrocatechol ethylene ether with carbon dioxide. The acid is an intermediate for pharmaceutical products and dyestuffs, particularly azodyestuffs.  In an example carbon dioxide is reacted at 120 DEG  C. under pressure with a mixture 4-hydroxy-pyrocatechol ethylene ether and potassium carbonate.  4-Hydroxy-pyrocatechol ethylene ether is made from 4-aminopyrocatechol ethylene ether by diazotization and boiling.
Patent GB-334003-A (GB)
Title: Improvements in gramophones and records therefor
IPC: G11B23/00
Filed: 1929-07-01
Abstract: 334,003. Fabian, L. July 1, 1929. Turntables; disc records.-The turntable a<1> is provided with two or more pins or lugs b<1> situated at an equal distance from the centre, and the record has correspondingly shaped apertures to engage the pins so that there shall be no slip. The lugs may be at the periphery of the turntable and engage notches in the periphery of the record
Patent GB-499647-A (GB)
Title: Process for improving the strength and abrasive properties of iron
IPC: C21C1/00
Filed: 1937-07-21
Abstract: To improve the strength and abrasive properties of iron, a mixture of 11,32 parts by weight of calcium carbide, 2,66 of aluminium and one of magnesium or 34 parts of calcium carbide, 16 of aluminium and 3 of magnesium is added to molten iron preferably in the proportion of five pounds of either mixture per ton of metal.  For the production from ordinary foundry iron mixture of castings giving a tensile strength of from 14 to 16 tons per sq. in. or for castings produced from high silicon manganiferous pig iron, h mitite and scrap and having a tensile strength of 16-19 tons per sq. in., the first mixture is used.  For the production of castings having a tensile strength of 19-22 tons per sq. in. or from 20-25 tons per sq. in., the second mixture is used, but in the latter case ten pounds of mixture per ton is used.
Patent GB-280629-A (GB)
Title: A new or improved process of manufacturing pulp for paper production
IPC: D21C3/02
Filed: 1926-08-17
Abstract: 280,629. Nanji, D. R. Aug. 17, 1926. Pulp, preparation of.-In the preparation of pulp, for paper making and the like, from plant, woody, and other cellulosic material an alkaline solution of up to 4 per cent strength is used and the material heated therewith to high temperaures at high pressure approximating to 10 atmospheres for about half an hour. By this treatment the material is delignified and the product may be readily bleached. Materials containing pectins and sugars are first treated with a pectin solvent such a dilute solution of a salt of an alkali, or of ammonia, in order to avoid staining. Impure celluloses obtained by other methods, such as sulphite pulp, soda pulp, or the like may be treated. In treating bagasse from sugar cane, the fibres are first disintegrated by crushing rollers, and the mass mixed with 4 per cent caustic soda solution and heated to 185‹ C. for about 1 hour. The sugar and pectin in the bagasse may first be removed with a 0.5 per cent solution of ammonium sulphate. In treating grasses and similar bulky materials, the non-cellulosic material is first hydrolysed and the alkali required thus economized by a preliminary acid treatment preferably with a 0.4 per cent solution of sulphuric acid at a pressure of 4-6 atmospheres for 30-60 minutes.
Patent GB-1301080-A (GB)
Title: Gyroscopic apparatus
Inventor: HITZOKAWA YOICHI
IPC: G01C19/10
Filed: 1971-04-19
Abstract: 1301080 Standby supply systems; induction machines TOKYO KEIKI KK 19 April 1971 [23 Jan 1970(3)1 20269/71 Headings H2A and H2H Energization of auxiliary equipment associated with a gyroscope is maintained in the event of a power failure by operating the gyroscope drive motor as an induction generator, driven by its own inertia. As shown, the gyroscope motor comprises a three phase motor M1 energized from a single phase source E by phase splitting capacitor Cp and inductor L. The capacitor Cp is chosen to resonate with the motor windings at synchronous speed and ensures self excitation of the motor when the supply fails, causing it to operate as an induction generator to supply equipment A1. In Fig. 6 (not shown) a tapped choke (L<SP>1</SP>) is connected across Cp to alleviate the influence of the parallel connection of Cp on the rotor and the supply source is a transistor oscillator energized with D.C. In Fig. 7 (not shown) relay contacts disconnect the gyroscope from the source when this fails and others connect a further capacitor (C<SP>1</SP>) across a choke (L) which is connected between phases 2 and 3 of the gyroscope.
Patent GB-635249-A (GB)
Title: Improvements in or relating to means for removing fumes from the crank-cases of internal-combustion engines
IPC: F01M13/02
Filed: 1947-07-28
Abstract: 635,249. Ventilating crank-chambers. RANDALL, C. C. July 28, 1947, No. 20283. Convention date, Sept. 19, 1945. [Class 7 (ii)] The engine flyweel acts as a blower by providing a scoop 11 adjacent the teeth engaged by the starter pinion and leading the compressed air by a pipe 18 to an ejector 8 which withdraws crank case fumes through a pipe 5 connected to the breather. The pipe 5 may extend vertically through the crank case base or be attached near the flywheel, so that the ejector may form a unit with the scoop 11. The Specification as open to inspection under Sect. 91 comprises also an alternative arrangement in which a separate blower, driven by an electric motor, is provided. This subject-matter does not appear in the Specification as accepted.
Patent GB-441072-A (GB)
Title: Manufacture of new secondary disazo dyestuffs
IPC: C09B31/047
Filed: 1934-07-11
Abstract: Water-soluble secondary disazo dyes devoid of sulphonic and carboxyl groups are made according to the following scheme: amine of the benzene or naphthalene series --> p-coupling amine of the benzene or naphthalene series --> an N-alkyl- or N-b -alkoxyethyl-N-sulphatoalkylaniline or a sulphuric ester of a polyethenoxyalkylaniline (see Specification 437,516), or (except where the middle component is a 2 : 5-dialkoxyaniline or a naphthalene derivative) an N-sulphatoalkylaniline.  "N-alkyl" means N-methyl to N-butyl and "sulphatoalkyl" means sulphatoethyl or sulphatopropyl.  They colour acetate artificial silk in red to brown to violet shades and are also useful for colouring nitrocellulose lacquers and varnishes and in making spirit stains and quick drying inks.  In examples, the following dyes are described: (1) p-nitroaniline --> 3-amino-4-methoxytoluene --> N - ethylsulphatoethylaniline or N-sulphatoethyl-o-toluidine (reddish violet and reddish brown); (2) benzeneazo-a -naphthylamine --> N - b -ethoxyethyl- or N-ethyl-sulphatoethylaniline (crimson); (3) o-chloroaniline --> 2 : 5-dimethoxyaniline --> sulphuric ester of the condensation product of N-ethylaniline and ethylene oxide (reddish violet); (4) 4<1>-amino-2 : 3<1>-dimethylazobenzene --> N - b  - ethoxyethyl - sulphatoethyl - 3-toluidine (yellowish red). Other components specified are m- and p-chloranilines, o-, m- and p - toluidines, 4- and 5 - chloro - 2 - toluidines, 1 : 3 : 4-xylidine, p-xylidine, o- and p-anisidine, p-phenetidine, o- and m-nitroaniline, 2-chloro-4-nitroaniline, 4-chloro-2-nitroaniline, 5- or 4-nitro-2-anisidine, 4-nitro-2-toluidine, 5-chloro-2-nitroaniline, 2 : 4-dinitroaniline, a - and b -naphthylamine and 5 - nitro - 2 - naphthylamine; middle components: aniline, o-toluidine and o-anisidine coupled as o -sulphonates and then hydrolysed, m-anisidine, m-toluidine and 2 : 5-diethoxyaniline.  According to the Provisional Specification an N-sulphatoalkylaniline may be used as end component without restriction on the middle component. Specifications 181,750, 224,077, 391,862, 421,117, and 437,745 also are referred to.
Patent GB-981614-A (GB)
Title: Disposable pot cleaner and scourer
IPC: A47L17/08
Filed: 1961-06-06
Abstract: 981,614. Cleaning materials. METAL TEXTILE CORPORATION. June 6, 1961 [July 15, 1960], No. 20430/61. Heading A4F. Cleaning material comprises a non-woven sheet of material 15 such as paper which is soft and pliant when wet and particles 21 consisting of a mixture of adhesive and abrasive elements 24. The mixture is preferably silica and urea formaldehyde and is sprayed by a row of nozzles on to a moving roll of creped or embossed paper to give a 25% to 50% coverage. Alternatively the mixture is rolled on to a moving roll of paper by an etched or smooth roller and may be applied to both sides of the paper.
Patent GB-478716-A (GB)
Title: Process for the manufacture of highly acetylated cellulose
IPC: C08B3/06
Filed: 1936-07-23
Abstract: For the manufacture of fibrous cellulose acetates by heterogeneous acetylation there is employed as a catalyst a mixture of perchloric and sulphuric acids without any metallic salt; the cellulose is either not subjected to pretreatment or is pretreated in the absence of any mineral acid, for example, with acetic acid alone.  Relative proportions of perchloric acid to sulphuric acid of 5 : 1 may be used, although proportions of sulphuric acid of less than 5 per cent, for example, of 1--2 per cent, are effective.  Acetates produced with these low proportions of sulphuric acid are stabilized by simple washing with cold water.  A mixed catalyst as above may be used in the acetylation process described in Specification 464,843.  In examples, bleached linters are pretreated with glacial acetic acid, and to the mixture is added a pre-cooled acetylation mixture consisting of acetic anhydride, acetic acid, perchloric and sulphuric acids, and ether, ethyl acetate or benzene as non-solvents, the temperature of the mixture being -9 to -14 DEG  C.  Specification 405,825 also is referred to.
Patent GB-1126943-A (GB)
Title: Window latch
IPC: E05C19/06
Filed: 1966-05-09
Abstract: 1,126,943. Latches. R. DALLAIRE. 9 May, 1966, No. 20465/66. Addition to 1065855. Heading E2A. A latch for a sliding window comprises a plastics moulding forming abase 60 provided with fixing holes 61, 62, and a hook 64 integral with a wall 83, the latter being provided with a stiffening flange 81 which is interrupted at locations 82 defining an axis about which the wall 83 can flex to allow the hook 64 to resiliently engage a side rail (not shown) of a window pane. The wall 83 is also formed with stiffening ribs 84.
Patent GB-865745-A (GB)
Title: Improvements in or relating to the granulation of valerian and hop extracts
IPC: B01J2/30
Filed: 1959-06-15
Abstract: Readily soluble, non-hygroscopic granules containing a powdered extract of valerian and/or hops are prepared by mixing the powdered extract with powdered, dry, whole or skim milk, and granulating the mixture with an organic solvent containing from 0 to 10% of water and drying the granules.  The preferred organic solvents are the lower aliphatic alcohols (containing up to 4 carbon atoms) which are not completely anhydrous.  The granules may additionally contain water-soluble, non-hygroscopic, weakly alkaline physiologically umiscuous salts, e.g. sodium bicarbonate, disodium phosphate, sodium pyrophosphate, sodium tripolyphosphate (preferred).
Patent GB-633898-A (GB)
Title: Phototypographic type body
IPC: B41B15/04
Filed: 1947-07-29
Abstract: 633,898. Photographic type - composing apparatus. LUDLOW TYPOGRAPH CO. July 29, 1947, No. 20491. Convention date, June 3, 1939. [Class 98 (i)] A character-bearing element for photographic type - composing apparatus consists of a central lightpervious portion carrying the character and outer opaque portions joined together. As shown, the element 8 consists of a central transparent or translucent portion 14 carrying an opaque character 10 and outer opaque portions 15 bearing ears 9. The portions may be made of cellulose acetate, the opaque portions containing an opaque dye, and may be united by heat and pressure with or without a solvent or adhesive. Interlocking tongues and grooves, preferably dovetailed, may be provided on the faces of the portions to be united. The outer portions may be of metal. Lines of characters may be assembled in a composing stick, and printed by projection or contact printing on to light-sensitive material. Successive lines may be assembled in separate composing sticks.
Patent GB-439748-A (GB)
Title: Improvements relating to door closing apparatus
IPC: E05F3/08
Filed: 1934-07-14
Abstract: 439,748. Door - closing appliances. TONKS, W. H., and STANLEY, T., 201, Moseley Street, Birmingham. July 14, 1934, No. 20711. [Class 65 (i)] Door-closing apparatus of the kind in which the automatic closing of the door is effected by a spring under the control of a fluid check device, comprises a chamber b containing the spring c and a spindle f provided on its outer end with a lever g, a cylindrical chamber d arranged below and coaxial with the chamber b and containing a piston e, a cam l carried by the spindle and adapted, when the spindle is rotated in one direction, to move the piston downwards, and a spring n which moves the piston upwards when the spindle is rotated in the opposite direction. During the downward movement of the piston, oil above the piston passes freely through the valves o, and during the upward movement the valves are closed by the oil pressure and the oil passes through an adjustable choke tube p.