baber/WOPTO huggingface dataset:
Patent GB-688505-A (GB)
Title: A composition of matter containing polyvinyl chloride
IPC: C08L27/06
Filed: 1951-02-06
Abstract: An organosol comprises a finely-divided thermoplastic vinyl chloride polymer containing at least 90 per cent vinyl chloride of molecular weight above 20,000 suspended in a liquid consisting of (1) volatile liquid hydrocarbons boiling within the range 35 DEG  to 250 DEG  C.; (2) an ester plasticizer; and (3) a product obtained by extracting petroleum with a non-reactive, highly polar solvent, e.g. Edeleanu, the ester and extract each boiling above 125 DEG  C. at 1 millimetre pressure, and the hydrocarbons being present in an amount between 50 and 300 parts per 100 parts of polymer, the ester in an amount between 40 and 150 parts per 100 parts of polymer and the extract in an amount between 20 per cent of the ester and a proportion which is just less than that at which the mixture of extract and ester ceases to be compatible with the polymer.  The polymers may be homopolymers of vinyl chloride and copolymers with vinyl acetate, vinyl propionate, vinylidene chloride, methyl vinyl ether, acrylonitrile and methyl acrylate. The hydrocarbons may be mixtures of benzene, toluene, xylene, naphthenic hydrocarbons, pentane, hexane, octane, nonane, decane, cyclopentane, methylcyclopentane, cyclohexane, and petroleum distillates.  Specified esters are tricresyl, tritolyl, trioctyl, and tributoxy ethyl phosphates, dibutyl, di-s-butyl, diamyl, dicyclohexyl, dioctyl, di-(2-ethylhexyl), dibenzyl, dicyclopentyl, diallyl and dimethallyl phthalates, butyrin, dibutyl diglycollate, dibutyl adipate, dibutyl sebacate, dibenzyl sebacate, dioctyl fumarate, dioctyl maleate, butyl acetylricinoleate, butyl phthalate, butyl glycollate, triethylene glycol dioctanoate, dibutyl "Cellosolve" (Registered Trade Mark) and carbitol phthalates and polydiethylene glycol sebacate.  The organosols may include small amounts of other solvents such as butyl acetate, methyl ethyl ketone, methyl isobutyl ketone, mesityl oxide, cyclohexanone and/or isophorone, small amounts of low molecular weight vinyl chloride-vinyl acetate copolymers, or methyl acrylate or methacrylate polymers as well as pigments, dyes, waxes and polymer stabilizing agents.  The organosols may be converted into self-supporting films or used to coat surfaces such as cotton fabrics.
Patent GB-841732-A (GB)
Title: Process of making colourless aqueous saline solutions of polyacrylonitrile
IPC: C08J3/03
Filed: 1958-01-29
Abstract: Polymers consisting of at least 85% of acrylonitrile are dissolved in aqueous zinc halide solutions by a process which comprises acidifying the zinc halide solution with a watersoluble non-oxidising acid which forms only colourless and water-soluble salts with the cations present in the solution, the amount of acid being such as to reduce the pH of the solution to a value of a solution in water of the zinc halide at the same concentration, the reduce pH value not exceeding 4,0, and thereafter using the so-acidified solution as the solvent for the polymer, for example by polymerizing acrylointrile with the aid of potassium persulphate or hydrogen peroxide whilst dissolved in the solvent medium.  Acids specified are hydrogen halides and sulphuric, phosphoric, formic, acetic, chloroacetic, lactic, butyric and citric acids.  The solvent solutions may contain salts such as calcium andmagnesium chlorides in addition to the zinc halide, which is preferably zinc chloride.  Specifications 729,382, 748,954 and 786,139 are referred to.
Patent GB-803168-A (GB)
Title: Improvements in or relating to mass spectrometers
Inventor: BISHOP JOHN
IPC: H01J49/10
Filed: 1956-01-31
Abstract: 803,168. Mass spectrometers. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan. 16, 1957 [Jan. 31, 1956], No. 3005/56. Class 39(1). A mass spectrometer has two ion sources 12, 14 associated with a collector system 16 in a Y-shaped envelope 10, and by reversing the field of electromagnet 17, one or other of the ion sources can be selected for analysis. One source may be loaded with a sample, and the other fitted for decontamination, i.e., heated until a steady ion beam free of residual ion effects is obtained. A flap valve 40 including a rubber sealing disc 41 and rotated by a spindle 45 is provided in front of each ion source so that it can be readily removed without interfering with the main vacuum. 18, 19 are main vacuum ports and 20, 21 pumping ports for the ion sources. The triangular pole-pieces 48 can be adjusted vertically or laterally by sets of screws 68, 69. In another embodiment, two pairs of ion sources are associated with two collector systems in a six armed envelope.
Patent GB-368021-A (GB)
Title: Gymnastic appliances
IPC: A63B9/00
Filed: 1931-01-30
Abstract: 368,021. G y m n a s t i c apparatus. FÍRTIG, W., 70, Kunigundenstrasse, Munich, Germany. Jan. 30, 1931, No. 3014. Convention date, Jan. 30, 1930. [Class 132 (i).] A gymnastic apparatus comprises a number of trestles formed by battens a .. d, &c., connected by cross-rods e .. h &c., hinged together lazytongs fashion so that they may be folded when out of use. Some of the trestles may be formed of longer battens and have additional cross pieces such as x, y. A narrow carpet q attached to one of the lower cross-bars mav be extended beneath the apparatus. To lock the trestles in position battens k may be provided, pivoted at one end to the lower cross pieces and having at the other dowels w engaging holes in the next adjoining batten k.
Patent GB-514871-A (GB)
Title: An adjustable device for indicating the prices of goods in shop-windows or the like
IPC: G09F3/20
Filed: 1938-02-01
Abstract: 514,871. Displaying. RITTER, R. Feb. 1, 1938, No. 3104. Void. Convention date, Feb. 1, 1937. [Class 3 (i)] A device for displaying prices in shop-windows &c. comprises a plurality of non-endless display bands 6 windable on and off parallel rollers 5 arranged co-axially in two rows. The bearing lugs 4 are mounted on a rear plate 3 separated from a windowed front plate 1 by a gasket 2. The part of the band 6 in view lies between the plates 1 and 3. Each roller 5 has a thumb-wheel 7 for manual rotation, and too-free running of the rollers is prevented by a spiral spring 9 riding on extensions of the roller spindles 8
Patent GB-432571-A (GB)
Title: Improvements in and relating to sealing compositions for cans, jars and other containers
IPC: C04B28/26
Filed: 1934-01-30
Abstract: A sealing composition for containers comprises an alkali silicate, alkaline earth silicate-or organic silicate in solution or dispersion in an aqueous system, one or more turgescent materials of a colloidal character, and an organic hygroscopic substance.  In an example, a solution of methyl cellulose in water is mixed with sodium silicate, wheat flour, and iron oxide, heated and then cooled.  There are then added calcium chloride solution, glycerol and ammonia, and the product is homogenized.  The turgescent material may be water soluble cellulose derivatives such as methyl or ethyl cellulose, or aqueous suspensions of water insoluble cellulose derivatives such as esters prepared by the addition of an acetone solution of the ester to water.  The hygroscopic substance may be polyhydric alcohols or their derivatives, such as glycol, glycerol, diethylene glycol.  Natural or synthetic resins and fillers such as kaolin and diatomaceous earths may be added.ALSO:A sealing composition for containers comprises an alkali silicate, alkaline earth silicate, or organic silicate in solution or dispersion in an aqueous system, one or more turgescent materials of a colloidal character, and an organic hydroscopic substance.  In an example 4 1/2 gallons of water, 24 lbs. of sodium silicate and 16 lbs. of wheat flour are whisked together, heated for 15 minutes at 90 DEG  C. and cooled.  Then 5 pints of strong ammonia, 7 lbs. of glycerol and 3 lbs. of iron oxide, dispersed in 4 pints of water with sodium oleate, are mixed in and the product is homogenized.  Other examples are given.  The turgescent material may be starches and flours, such as cornflour, rice, sago, or protein matter such as gluten, casein, albumen, or hydrophilic colloids such as agar agar, Irish moss, or water soluble cellulose derivatives such as methyl or ethyl cellulose, or aqueous suspensions of water insoluble cellulose derivatives such as esters prepared by the addition of an acetone solution of the ester to water.  The hygroscopic substance may be polyhydric alcohols or their derivatives, such as glycol, glycerol, diethylene glycol.  Natural or synthetic resins and fillers such as kaolin and diatomaceous earths may be added.
Patent GB-590579-A (GB)
Title: Improvements in and relating to the assembling of blade rings for elastic fluid turbines
IPC: F01D5/14
Filed: 1945-02-08
Abstract: 590,579. Making turbines. SVENSKA TURBINFABRIKS AKTIEBOLAGET LJUNGSTROM. Feb. 8, 1945, No. 3237. Convention date, March 31, 1944. [Classes 83 (ii) and 83 (iii)] Work-holders.- Blades for a radial flow elastic fluid turbine are assembled in the position which they will occupy in the finished blade ring in a holder 2 by means of a clamping- ring 7 and a detachable member 4 having an annular slot 5 to receive one end of the blades. When the protruding ends remote from the member 4 have been turned to the desired form as at 8 and a supporting ring 9 fitted to them and locked by rolling or pressing, the member 4 is detached and the other ends turned as at 10 to fit another supporting-ring. To suit blades of different lengths, annular distance rings 6 can be fitted in the slot 5.
Patent GB-690914-A (GB)
Title: Improvements in chaff-cutters
IPC: A01F29/10
Filed: 1952-02-07
Abstract: 690,914. Cutting chaff. MASCHINENFABRIK FAHR AKT.-GES. Feb. 7, 1952 [April 13, 1951], No: 3242/52. Class 5(i) The feed-in to a chaff cutter drum 2 comprises upper feed rollers 4, 5 mounted between arms 3 which are pivotable about the drum shaft 1 to adjust these rollers to or from the feed table 6. The roller 4 is smaller than the roller 5 to provide a wedge-shaped feed-in passage. A counter roller 7 protrudes slightly above the end of the feed table 6 at the narrowest part of the feed-in passage. All the feed rollers are driven from the drum shaft 1 by chain or V-belt. A casing 8 adjusted along with the arms 3 covers the apparatus.
Patent GB-712039-A (GB)
Title: Resinous products
Inventor: MEPHAM BRIAN EDWIN
IPC: C08F253/00
Filed: 1951-02-09
Abstract: Resinous materials are obtained by polymerizing styrene in the presence of an isomerized rubber obtained by heating raw crepe rubber with a phenol and an isomerizing agent.  The treated rubber and styrene may be dissolved in xylene, dipentene or coal tar naphtha and heated to 140 DEG C. with benzoyl peroxide, or the solution may be emulsified in water with sodium alkyl sulphate and heated to 30 DEG C. with potassium persulphate, the dispersed phase separated and washed with water and acetone.  The product may be dissolved in petroleum spirit and is miscible with linseed stand oils.  An anti-corrosive paint comprises a solution of the resin in xylene, chlorinated diphenyl and zinc dust.  Specifications 498,311, 539,641 and 541,899, [all in Group V], are referred to.ALSO:Isomerized rubber is prepared by heating crepe rubber, phenol and phosphoric acid under reflux at 180 DEG  to 182 DEG C. for several hours.  The mass is dissolved in toluene, and the product precipitated by methyl alcohol and the volatile impurities distilled off.  The rubber may be heated with styrene and a polymerization catalyst to yield a resinous product suitable for use in coating compositions.  Specifications 498,311, 539,641, and 541,899 are referred to.
Patent GB-263328-A (GB)
Title: Improvements in or relating to vaporisers for use in connection with internal combustion engines
IPC: F02M31/18
Filed: 1926-02-04
Abstract: 263,328. Brownridge, T. R. Feb. 4. 1926. Vaporizers, external.- An auxiliary electricallvheated vaporizing device to facilitate starting is located at 10, or 101, Fig. 1, between the carburettor 42 and the cylinders and comprises a body portion 11 with domed top 14 forming a chamber to contain a heated element 19 on to which fuel is projected by a nozzle 13. A boss 15 in alignment with the nozzle is screwed into the induction pipe and the lower end of the body is screwed to receive a sleeve 20 in which is carried the insulation tube 23 of the plug-like heating device secured by a cap 22 and washers 27, 27A. The wire 31 to be heated is carried by a plug 29, is coiled at 19 and is connected to sleeve 20 at 30A. The coil may be of different forms and may be in line with or transverse to the nozzle axis so as to obstruct the fuel as much as possible. The nozzle pipe 38 is held by friction in the screwed part 40 and the outlet orifice may be a circular hole or an elongated slit. The fuel pipe 43, Fig. 1, to the carburettor is connected by a pipe 44 to a primer or injector 44A which discharges the fuel through a pipe 46 to the vaporizing device. Wires 48, 51, Fig. 5, from a battery system lead to a switch the arm 50 of which is adapted to be actuated to close the circuit just before the plunger of the priming device reaches its outer position. Thus, the wire is heated before the fuel is projected on to it. The arm 50 is attached to a bell-shaped member which is held against the dashboard by a compression spring under the primer knob 52 until the bell is moved.
Patent GB-694627-A (GB)
Title: Improvements relating to electric cam-operated switches
IPC: H01H19/63
Filed: 1952-02-07
Abstract: 694,627. Rotary switches. BUSCH-JAEGER LUDENSCHEIDER METALLWERKE AKT.-GES. Feb. 7, 1952 [Feb. 8, 1951 ], No. 3288/52. Class 38 (v) In a switch having an odd number, as shown three, of contact arms 1, 3, 9 co-operating with a face cam 7, the central arm 9 has an enlargement 4, through an opening 5 in which extends the cam shaft 6 or a continuation of the cam. Each contact arm is as described in Specification 692,246.
Patent GB-876852-A (GB)
Title: Improvements in axial flow fans
Inventor: LEVACIC IVAN
IPC: F04D29/38
Filed: 1957-01-31
Abstract: 876,852. Axial-flow fans. BESTWOOD CO. Ltd. Jan. 21, 1958 [Jan. 31, 1957], No. 3439/57. Class 110 (1). A two-bladed axial-flow fan impeller consists solely or mainly of a diametral member which is of constant concavo-convex transverse curvature throughout the diameter of the impeller, including the central or hub portion. The twobladed fan impeller shown is formed from one sheet blank folded along each leading edge 3 so as to comprise an outer part 9 and two inner parts 10 which are locally pressed against the part 9 to give a flush joint at their meeting edges 11. The trailing edge of each part 10 is cut away to a line 12. The parts 9, 10 are curved transversely to a cylindrical form, the radius of curvature of the parts 10 being greater than that of the part 9 so that the blades have the aerofoil section shown in Fig. 12. In a modification, the parts 10 are replaced by a single sheet separate from the sheet forming the part 9 and, as before, of greater radius of curvature, the two parts being welded or riveted together. The impeller may be of single-skin construction, consisting of the part 9 only. The blades may be twisted. The impeller may be of sheet metal, laminated wood or plastics (which may be laminated or otherwise reinforced).
Patent GB-1029921-A (GB)
Title: Improvements in or relating to self-propelled vehicles
IPC: B60K17/10
Filed: 1965-01-27
Abstract: 1,029,921. Controlling hydrostatic transmissions. LEVY INDUSTRIES Ltd. Jan. 27, 1965 [Jan. 31, 1964], No. 3552/65. Headings F2C and F2D. [Also in Division B7] The steerable front wheels 15, 16 of a tractor in which an engine is coupled to the rear wheels by a mechanical transmission are driven through reduction gearing 19, 20 by hydraulic motors 17, 18 supplied with fluid at constant pressure from a variable-output pump 31 which is mounted at the front or rear of the tractor and driven directly from the engine or by a powertake-off shaft. A duct 61 connected to whichever of the pump timing ports 41, 42 is currently supplying the pump output to reversible flow and return lines 43, 44 communicates the output pressure to a piston (Fig. 3a) which exerts on an arm 59 extending from the pump swashplate 39 a force opposing that exerted by a spring preloaded to provide a predetermined output pressure by a control handle 62. Any variation in output pressure thereby results in adjustment of the swash-plate angle to restore the desired value. Make-up fluid from a chamber 51 within the pump housing 33 is supplied to the circuit by a gear pump 52 through one of one-way valves 56, 57, excess fluid returning to the chamber 51 through a relief valve 58.
Patent GB-705775-A (GB)
Title: Improvements in telephone receivers
IPC: H04R1/22
Filed: 1952-02-11
Abstract: 705,775. Receivers. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. Feb. 11, 1952 [Feb. 13, 1951], No. 3592/52. Class 40 (4) A miniature receiver 9 is rigidly attached to a leaden sheet 8 or a cement sheet and is floated in kapok 6. In one arrangement, Fig. 2, the container comprises a dished sheet 1 of brass or iron which is secured to a fabric covering 11 by an elastic band 12. The kapok is loaded with an additional leaden sheet 7 but there is no contact between the two leaden sheets or between either of the sheets and the container. Lugs 2 enable the device to be secured to a head set. In a modification, Fig. 4, the leaden plate 18 carrying the receiver is held between two toroidal kapok cushions 19, 20 in a cupshaped brass shell 15. A fabric cover 11 is wired on to the shell leaving an aperture 23 guarded by a rubber ring 24 to give access to the receiver. A toroidal kapok cushion 25 is secured to the outside periphery of the shell.
Patent GB-401537-A (GB)
Title: Improvements in or relating to electrical musical instruments
IPC: G10H3/18
Filed: 1933-02-07
Abstract: 401,537. Electrical musical instruments ; transmitters. PALMGREN, N. A., 8, Gibraltargatan, Gothenburg, Sweden. Feb. 7, 1933, Nos. 3767 and 3768. Convention dates, Feb. 8, 1932 and July 28, 1932. [Class 88 (ii).] In musical instruments wherein the vibrations of mechanically or electrically vibrated members such as electrically conductive strings, springs &c. are electrostatically translated for transmission to a loud-speaker, recording-apparatus, or the like, the size or disposition of an electrode relative to the vibratory members differs between the members. In Fig. 4, the strings 1, sounded from keys 11 by hammers 12, are connected to a battery 7, transformer 8 and electrode or electrodes 2a, 2b forming condensers with the strings, the secondary of the transformer being connected through a potentiometer 9 (with pedal-controlled movable contact) to the loudspeaker &c. Different timbres are produced by the electrodes 2a, 2b, either being connected in circuit by a switch. A tone richer in harmonics is obtained from an electrode covering a portion only, as compared with the whole, of the length of a string. The timbres of different strings, or the characteristics of the amplifier or loudspeaker, may be adjusted or corrected by varying the size and disposition of an electrode relative to the strings. The electrodes consist of vibration - deadening material with a facing of sheet metal, wire netting, or metal powder in a suitable binder ; or they may consist of tuned vibratory members. In Fig. 7 metal bands 1 lie between two perforated electrodes 16, 17 and are connected in such a way that in depressing a key 30, which co-acts with three contacts 23, 22, 21, first the potential of the band 1 is changed, thus setting it in vibration, and then the vibrations are transmitted to the loudspeaker 29 as before. An electrode may be screened from disturbing electrostatic effects on the side remote from the strings by an extension of the string-frame, on which extension the electrode may be adjustably mounted (Figs. 8 to 10 not shown).
Patent GB-673211-A (GB)
Title: Method of and apparatus for desulphurising coal distillation gases
IPC: C10K1/10
Filed: 1950-02-14
Abstract: <PICT:0673211/III/1> <PICT:0673211/III/2> Hydrogen sulphide and ammonium carbonate are recovered from crude coal gas by washing the gas with ammoniacal liquor for the removal of H2S, revivifying the liquor by heating it to just below 100 DEG C in the presence of carbon dioxide to free the H2S, the carbon dioxide subsequently being combined with ammonia to form the carbonate.  The carbon dioxide and ammonia are obtained by heating a liquor which has been used to wash these gases from the coal gas.  The apparatus consists of a H2S scrubber 1 and an ammonia and carbon dioxide scrubber 2, through which the coal gas passes in series.  Spent sulphided liquor from 1 is passed into a deacidifier 8, whilst spent ammoniacal liquor from 2 is passed to a still 4, where it is heated to about 100 DEG C, the evolved gases, consisting of NH3, CO2 and steam passing on into the deacidifier 8.  The the NH3 is absorbed in H2SO4, the CO2 and steam passing on into the desidifier 8.  The spent liquor therein is thus heated to about 100 DEG C, and, in the presence of the CO2, evolves H2S which discharges through a pipe 16 and is used for the production of sulphur or sulphuric acid.  The regenerator liquor is cooled and passed back to the scrubber 1.  In a modification, Fig. 2, the saturator is omitted, the whole of the gases from the still 4 passing into the deacidifier and discharging, with the hydrogen sulphide, through a pipe 28 to an ammonium bicarbonate separator 29, which consists of a water-cooled jacket in which the salt deposits, a worm conveyer scraping the crystals into a hopper 31. The hydrogen sulphide escapes through a pipe 32 and is worked up as before.
Patent GB-366281-A (GB)
Title: Improvements relating to clips for securing articles of dress
IPC: A41F15/02
Filed: 1931-02-06
Abstract: 366,281. Wire clips. MORTON, T., Woodlea, Oxford Road, Moseley, -Birming- ham. Feb. 6, 1931, No. 3793. [Class 44.] A wire tie clip is made from a doubled piece of wire, Fig. 4, bent to form a pair of resilient jaws, Fig. 6, one free end b of the wire having a notch c and being bent over to engage notches d in the other end. A plate carrying a button or other ornament may be secured between the two superposed portions of one of the jaws.
Patent GB-179285-A (GB)
Title: Improved garment suspender
IPC: A41D27/22
Filed: 1921-02-01
Abstract: 179,285. Langes, H. Feb. 1, 1921. Fastening wearing-apparel; suspenders.-In garment-suspenders of the type having a plate or the like d attached to the garment and a connection a with a T-shaped head attached to a strip or chain c, the plate d is slotted and sewn to the garment either in flat form, as shown in Figs. 1 and 4, or doubled on itself, as shown in Fig. 5, to form two spaced eves f. In the former construction the plate is bent at k for engagement by a spring g which normally closes the slot in the plate against the removal of the T-shaped head of the connection a, but which is capable of being depressed by engaging the stud h, thereby freeing the member a as shown in Fig. 4. In the modification, Fig. 5, the connection a is itself a spring and the two links may be sprung together.