baber/WOPTO huggingface dataset:
Patent GB-1092068-A (GB)
Title: Electrolytic recording medium containing a polynuclear phenol
IPC: B41M5/20
Filed: 1965-06-22
Abstract: Polynuclear phenols, for use in electrolytic recording papers (see Division D2) are synthesized as follows: (1) ethylidene-di-catechol is made by heating catechol, water, paraldehyde and sulphuric acid, washing the reaction mixture to neutrality and distilling off unreacted catechol at reduced pressure; (2) ethylidenedi-(3,4-dihydroxytoluene) is made by heating 3,4-dihydroxytoluene, water, paraldehyde and sulphuric acid, recrystallizing the white solid formed from isopropanol, washing with ligroin and drying in air.ALSO:An electrolytic recording medium comprises an impregnated sheet containing in an electrolytically conducting solution, as a marking agent a phenol in which two aromatic nuclei are linked through an alkylene or haloalkylene bridge.  One nucleus is a phenyl radical bearing at least two vicinal hydroxyl substituents and optionally other substituents, the other is a phenyl or naphthyl radical bearing at least one OH, SO3 H or COOH substituent.  Suitable phenols are: methylene-di-catechol, ethylidine-di-catechol, ethylidene-di-(3,4-dihydroxytoluene), ethylidene-di-3-methoxycatechol, ethylidene-di-pyro-galloy, methylene-di-4-chlorocatechol, ethylidene-di-hydroxyhydroquinone, 1,1, 1-trichloro-(2-catechol, 2-naphthalenesulphonic acid)-ethane, 1,1,1-trichloro-(2-dicatechol)-ethane, 1,5-bis-(3,4-dihydroxyphenyl)-pentane, and (3,4-dihydroxyphenyl, naphthalenesulphonic acid)-methane.  The solution may be rendered conductive by a chloride, bromide, nitrate or sulphate of an alkali metal, magnesium or ammonium.  It may be acidified with sulphuric, nitric, hydrochloric, citric, oxalic, phosphoric, tartaric or formic acid or a salt thereof.  It may also contain as a stabilizer thiourea, an alkyl derivative of thiourea or dithiobiunet, or as an oxidizing agent a chlorate, bromate, iodate, perchlorate or periodate of an alkali metal, or both a stabilizer and an oxidizing agent.  The sheet to be impregnated may be of white paper.  When a current is passed through the impregnated sheet using an eroding anode, e.g. of iron, stainless steel, chromium, copper or nickel a dark mark is formed.
Patent GB-406945-A (GB)
Title: Improvements in and relating to multi-cylinder internal combustion engines with forced air cooling
IPC: F02F1/06
Filed: 1933-09-26
Abstract: 406,945. Cooling cylinders. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Sept. 26, 1933, No. 26492. Convention date, Sept. 27, 1932. [Class 7 (ii).] Cooling air is forced by a blower 4 into chambers 7, 8, whence it is evenly distributed to the cylinders by slots 11, 12 which vary in width so that more air is supplied to the head ends of the cylinders. The jackets 9, 10 butt on to the cooling fins, which are shorter on the inlet than on the outlet side, where further slots 13, 14 allow the air to flow out past push rods 28, 29 of the overhead-valve gear. The chambers 7, 8 are integral with the crank-case which is egg-shaped in section as shown. Further air is discharged adjacent the exhaust valve housings 22<1> which are of good heatconducting material. In a modification as applied to an upright V-engine, the air is delivered to the space between the lines of cylinders at the opposite end to the blower and leaves outside the rows of cylinders in the direction of the blower.
Patent GB-690715-A (GB)
Title: Improvements in colour filters
Inventor: COOPER HUBERT DENNIS
IPC: G03C7/00
Filed: 1950-10-31
Abstract: 690,715. Colour filters. OLYMPIA FILMS (LONDON), Ltd.. Oct. 15, 1951 [Oct. 31, 1950], No. 26521/50. Class 97 (i). A filter for taking the green record in a twocolour additive kinematograph system has chromaticity co-ordinates, calculated for Standard Illuminant A(2848‹ K), lying within an area bounded by straight lines joining points having the following co-ordinates on the Standard C.I.E. rectangular chromaticity chart: x=0.180 y=0.550 x=0.270 y=0.500 x=0.270 y=0.460 x=0.180 y=0.480. The filter may be prepared by the method described in Specification 690,703. The twocolour process may be that of Specification 656,909. Specifications 690,714 and 690,716 also are referred to.
Patent GB-774417-A (GB)
Title: Improved machine for bending or folding sheets of plastic material
Inventor: RAWLS THOMAS FREDERICK
IPC: B29C53/04
Filed: 1954-09-15
Abstract: Thermoplastic sheet material is bent or folded by applying heat to narrow strip-like zones and then bending or folding the sheet along the zones so rendered pliable before there is any substantial transfer of heat to adjacent zones.  A press may be used, of the kind intended for printing markings on cloth, in which a lower platen moves upwards against a fixed upper platen. The sheet is placed on the lower platen which is fed forward into position beneath the upper platen, to which a hot bar is attached. The lower platen is then raised to press the sheet against the hot bar, where it is held long enough to soften the strip of material in contact with it sufficiently for bending, without the adjacent parts of the sheet being appreciably heated.  The sheet is removed and bent manually along the heated zone.  By the use of more than one heated bar the strip-like zones may be heated simultaneously, for which purpose a metal plate with areas in relief may be used. The bars may be clamped to the upper platen or attached thereto by being magnetized, or by adhesive.  Templates may be used to position the sheet on the lower platen and ensure that it is bent in the correct places.  The sheet may have printed matter added between the bending operations. Specification 653,665 [Group XVI] is referred to.
Patent GB-843635-A (GB)
Title: Improvements relating to radar detection systems
IPC: G01S7/02
Filed: 1957-08-23
Abstract: 843,635. Radar. COMPAGNIE FRANCAISE THOMSON-HOUSTON. Aug. 23, 1957 [Aug. 24, 1956], No. 26716/57. Class 40(7). A pulsed radar system which cannot readily be jammed comprises at least two transmitters arranged to operate in sequence and to radiate energy from a single aerial in substantially the same direction but in different planes of polarization. In one embodiment, transmitters 2, 3, operating on the same frequency feed to duplexers 4, 5 and to a polarization sensitive separator 8. This separator comprises a Y-shaped waveguide structure so that one branch 6, will pass only horizontally polarized waves and the other, branch 7, will pass only vertically polarized waves. The third branch will support both polarization forms and feeds to the aerial 9. Echoes due to transmitter 2 pass through branch 6 of the separator 8 to the duplexer 4 and mixer 12 which feeds to the I.F. amplifier and display. Likewise, echoes due to transmitter 3 pass through the second branch to the mixer. In another embodiment, Fig. 4 (not shown), the two transmitters operate on different frequencies in the same band and the local oscillator operates in sequence with the transmitters to give the same intermediate frequency. Specification 843,634 is referred to.
Patent GB-1436825-A (GB)
Title: Corrosion-inhibiting composition
IPC: C23F11/14
Filed: 1974-06-17
Abstract: 1436825 Corrosion inhibition CALGON CORP 17 June 1974 [21 June 1973] 26758/74 Heading C7E A corrosion-inhibiting composition consists of (1) an aliphatic mono-amine or mixture of aliphatic mono-amines (2) a dispersing agent that is at least one ethoxylated beta amine and/or ethoxylated beta diamine, and (3) water. The amine may be octadecylamine or commercial fatty amine(s) and the dispersing agent either (I) or (II) where R 1  = C 8 -C 20  alkyl, R2 = C 1 -C 4  alkyl, x, y # 1 and x + y < 100 in (I) or x, y, z # 1 and x + y + z < 100 in (II). In described embodiments of (I) R 1  = C 9 H 19  and R 2  = CH 3  and x + y = 15, or R 1  = C 13 H 27 ,R 2  = CH 3  and x + y = 5, for (II), R 1  = C 13 H 27 , R2 = CH 3  and x, y, z = 1. Corrosion of ferrous, Cu-or Ni-based alloys in aqueous systems is inhibited by addition to the system of 0.01-100 p.p.m. of the composition.
Patent GB-1032579-A (GB)
Title: Packing material
IPC: B32B15/08
Filed: 1964-06-29
Abstract: 1,032,579. Laminates. ZELLSTOFFFABRIK WALDHOF, and RHEINISCHE BLATTMETALL A.G. June 29, 1964 [June 28, 1963], No. 26760/64. Heading B5N. Material for wrapping, or for other packing purposes such as making single or double bags, sacks &c., which material retains its impermeability on folding or buckling, comprises aluminium foil adhered to paper which has been rendered stretchable by passing a wet web of the paper between a roller and a stretcher belt, the paper being smooth at least on the side carrying the foil. The bonding agent may be P.V.C., polyvinylidene chloride, poly-acrylic acid, or -methacrylic acid or their esters, amides or nitriles, or polyolefins such as polyethylene, polypropylene, polyisobutylene, or copolymers thereof. Preferably high-pressure polythene is used, applied by extrusion at high temperature (300‹ C.) and superficially oxidized by substantial spacing between the extruder and the laminating rolls, with or without additional oxidizing means such as oxygen, ozone or flame.
Patent GB-684797-A (GB)
Title: Improvements in or relating to rotary regenerative heat exchangers
IPC: F28D19/04
Filed: 1950-11-03
Abstract: 684,797. Rotary regenerative heat-exchangers. AKTIEBOLAGET LJUNGSTROMS ANGTURBIN. Nov. 3, 1950 [Nov. 4, 1949], No. 26845/50. Class 64 (i) Relates to rotary regenerative heat-exchangers in which the rotor includes a rotor post 12 connected to a circular rotor shell by radial partitions 11 which divide the rotor into sector-shaped compartments containing heat-transfer material. According to the invention the heat-transfer material at the "cold" end of the rotor comprises monolithic or integral, sectorshaped masses 33 disposed within said compartments and extending from the outer ends thereof inwardly to the rotor post, the masses being provided with a plurality of fluid passages 34 extending therethrough in a direction generally axially of the rotor. Preferably each compartment contains a single monolithic mass but for convenience in handling the mass may be made in two or more separate parts. The passages 34 may be rectangular (Fig. 4) or circular (Fig. 2) or of any other shape. In the form shown each mass 33 is provided at its outer arcuate end with a solid metal plate 36 which, when the mass is positioned in the rotor, forms a closure for openings in the rotor shell through which the masses are inserted or withdrawn from the rotor for cleaning. The masses 33 are made of corrosion resistant material e.g. cast iron. Other masses 50 (Fig. 8) similar in form to the masses 33 but of heat resistant material may be provided at the "hot" end of the rotor, the main body of heat-transfer material consisting of pebble shaped or other loose types of material supported by grids 52.
Patent GB-828722-A (GB)
Title: Improvements in or relating to cultivating machines
IPC: A01B39/10
Filed: 1956-09-03
Abstract: 828,722. Agricultural implements. SMITH, L. S. Sept. 16, 1957 [Sept. 3, 1956]. No. 26871 /56. Class 6(1). A mechanical hoe comprises a blade 5 carried by a two-armed lever 6 pivotally mounted on a crankshaft 8 driven by a motor, the upper arm 11 of the lever being attached to a link 13 so that the blade 5 follows an elliptical path having a vertical minor axis which is shorter than the major axis which lies horizontal. The motor is mounted on a two wheeled tractor provided with a guiding handle and the two handwheels are also driven by the motor. An auxiliary ground wheel 15 is provided to run on the ground in advance of the blade 5. Specification 817,966 is referred to.
Patent GB-997715-A (GB)
Title: Pulse modulation system for television signals
IPC: H04N7/26
Filed: 1962-07-12
Abstract: 997,715. Pulse modulation systems. KOKUSAI DENSHIN DENWA KABUSHIKI KAISHA. July 12, 1962 [Sept. 11, 1961], No. 26871/62. Heading H4L. In a system for converting a television video signal into a pulse code modulated signal, the television signal represented by So Fig. 2, is added to a signal Fo of much higher frequency which ideally is of triangular wave form but may be sinusoidal, its amplitude being equal to one quantum level. If the combined signal S c  is sampled at a frequency equal to that of F 0 , and assuming a reference or threshold voltage V r  defining one quantum level, duration modulated pulses S q  will result each time the combined signal is greater than the reference level, but if the sampling frequency is arranged to be much higher than the frequency of F 0 , the output signal S s  is in the form of pulse number modulation, i.e. the density of the pulses is proportional to the brightness. Both positive and negative sampling signals are used, Fig. 2(E), the positive sampling signal being gated when the signal to be coded is greater than, and the negative sampling signal being gated when the signal to be coded is less than the reference level. In a modification, Fig. 4 (not shown), two reference levels representing two quantum levels are indicated which produce two separate p.c.m. trains. In order to prevent interference with the video signal, the frequency of the signal F 0  may be arranged to be an odd multiple of half the horizontal scanning frequency. In a colour television system the subcarrier wave or a harmoic thereof may be used as the signal F o .
Patent GB-1263620-A (GB)
Title: Method of making a skin covered foamed article
IPC: B29C44/04
Filed: 1969-05-28
Abstract: 1,263,620. Reinforced foamed articles. GOODYEAR TIRE & RUBBER CO. 28 May, 1969 [28 June, 1968], No. 26877/69. Heading B5A. Skin-covered foamed articles, e.g. cushions, crash-pads &c. for automobiles, having a reinforcing member therein are made by releasably adhering the reinforcing member to a lid over a mould cavity and causing a foamable material to foam in the mould and adhere to the skin and to the reinforcing member, the skin being preformed or formed in situ on expansion of the material by cooling the mould and the reinforcing member being formed by applying sufficient fluid plastics material to the lid. The material forming the reinforcing member is preferably foamable, may contain asbestos fibres, may be rigid or semi-rigid and is preferably foamed on the lid within a removable frame. The reinforcing member preferably also includes means to attach the article to a complete assembly, e.g. an automobile.
Patent GB-1099177-A (GB)
Title: Lane change for raceway toy
Inventor: BAX GLEN R
IPC: A63H18/02
Filed: 1966-06-16
Abstract: 1,099,177. Lane change for raceway toy. LOUIS MARX & CO. Ltd. June 16, 1966 [June 16, 1965], No. 26880/66. Heading A6S. Toy vehicles guided on a trackway by a depending finger in a through slot in the trackway may be switched to a different lane at a trackway lane change arrangement that comprises a through slot and lane change slot that communicates with the through slot and adapted to be engaged by the depending finger for directing the finger to the lane change slot when the vehicle approaches at a slow speed and permitting finger to continue in the through slot when vehicle approaches at a higher speed. Such movements may be performed in a lane change arrangement as shown in Figure 2. As the vehicle travels along with the depending finger in slot 17, it approaches the lane change entry point at a controlled speed. As the finger 21 strikes the arcuately shaped deflector 28, the finger will be forced toward lane change slot 24 and at a slow speed the vehicle will enter slot 24. At higher speeds, the vehicle will strike deflector 28 out of its deflecting position and due to the inertia of the vehicle of the higher speed, it will continue in a straight line in slot 17. An alternative embodiment devoid of moving parts, is shown in Figure 6 and Figure 7, the latter being a sectional view taken along line 7-7 of Figure 6. When the vehicle moves along slot 42 at a slow speed, finger 21 rises up the ramp 46 and descends the other side thus engaging the leading edge 48 of the second ramp hence guiding the vehicle along the slot 43. At a higher speed, however, the finger 21 will again rise up the ramp 46, but if the speed is high enough, the finger will remain raised for a sufficient time to permit it to clear the edge 48. Thus the vehicle will continue in a straight line along slot 42.
Patent GB-297393-A (GB)
Title: Improvements in or relating to talking machines
IPC: G11B3/00
Filed: 1928-09-20
Abstract: 297,393. Krebs, (nÚe Hoimann), B., Krebs, E., Krebs, H., Grill, (nee Krebs), A., Krebs, L., and Krebs, A., (trading as Krebs & Klenk). Sept. 20, 1927, [Convention date]. Cases with internal horns. -The support m of the tone-arm k is connected to the part a<1> of the horn a' by a metal bushing b, which passes through the motorboard h and prevents contact of the sound waves therewith. The bushing b is welded or otherwise attached to the part a<1> and is screwed into a ring i, which, in conjunction with a flange g on the bushing, firmly clamps said bushing to the motor-board. The ring i is attached to the tone-arm support m; and the joint may be made still more secure by screws passing through the parts m, i, h, g.
Patent GB-653211-A (GB)
Title: Improvements in joining sheets of polyethylene
IPC: B29C65/00
Filed: 1948-10-18
Abstract: 653,211. Pipe joints. UNITED STATES RUBBER CO. Oct. 18, 1948, No. 26981. Convention date, Jan. 14. [Class 99(i)] [Also in Group VIII] A sheet of polyethylene is formed into a cylinder and a longitudinal lap joint formed therein. Two such cylinders may be joined together by lapping them telescopically and uniting the circumferentially lapped edges. Both the longitudinal and the circumferential joints are made by heating the material at the interface to a temperature of not less than 5‹ C. below and not more than 15‹C. above the melting point of the polyethylene while subjecting the lap joint to mechanical pressure, preferably such that the material flows so that the thickness of the joint is less than the sum of the thicknesses of the sheets being joined and is at least equal to the thickness of either of said sheets. The melting point is defined as the temperature at which the crystalline phase disappears as determined by the disappearance of the X-ray diffraction pattern. The time of heating may be controlled according to the thickness of the material, and the joint may be subjected to controlled cooling (see Group VIII).
Patent GB-276191-A (GB)
Title: Improvements in stock-indicating devices for use in store rooms or the like
IPC: G08B5/02
Filed: 1926-10-28
Abstract: 276,191. Coram, W. G. Oct. 28, 1926. Indicators directly operated by hand for displaying variable information.-A device for indicating the amount of stock in a bin comprises a pivoted arm 2 mounted on or near the bin and capable of being moved into various positions. A word such as " order " may be displayed on the free end of the arm, e.g. on a card 12 attached to the arm. Co-operating notches and projections on the hub and pivot enable the arm to remain in any set position.
Patent GB-1160455-A (GB)
Title: A Slotted Tray for Fractionating Columns.
Inventor: BRAUN VLASTIMIL
IPC: B01D3/16
Filed: 1967-06-13
Abstract: 1,160,455. Trays for fractionating columns. KRALOVOPOLSKA STROJIRNA ZAVODY CHEMICKYCH ZARIZENI NARODNI PODNIK. 13 June, 1967, No. 27159/67. Addition to 1117463. Heading B1R. [Also in Division F2] In a modification of the fractionating- column tray described in the parent Specification the travel-limiting means 5 are secured to a central rib 3 depending from the valvecap 2 as shown. The travel-limiting means may also, as shown, have tongues which contact the upper surface of the tray 1.
Patent GB-1284357-A (GB)
Title: Flavouring agent
Inventor: GASSER RUPERT JOSEF
IPC: A23L27/21
Filed: 1970-06-05
Abstract: 1284357 Flavouring composition NESTLES PRODUCTS Ltd 5 June 1970 27262/70 Heading A2B A process for preparing a flavouring composition (e.g. having a roast beef flavour) comprises the following steps: heating at 60- 90C for 3-5 hours a mixture of 40-50 parts by wt (dry matter) yeast autolysate containing 1-6% by wt reducing substances, at least 3% by wt amino-nitrogen and at least 7% by wt total nitrogen, 30-40 parts by wt (dry matter) vegetable (e.g. peanut) protein hydrolysate, 3-6 parts by wt (dry matter) enzymatically hydrolysed meat extract, 0.9- 2.7 parts by wt lactic acid, and 10-30 parts by wt water, holding the mixture at ambient temperature for 8-12 days, adjusting the pH of the mixture to 6.0-6.5 and the water content of the mixture to 25-35% by wt, heating the mixture to 60-90C, holding the mixture at this temperature for 1-3 hours, adjusting the pH to 6.5-7.0 and maintaining the mixture at 60-90 for 1-3 hours. The resultant mixture may be concentrated, vapours given off being condensed and returned to the concentrate, dried (e.g. by vacuum-, belt-, spray- or freeze-drying,) and ground. The hydrolysed meat (e.g. beef or whale) extract may be prepared by heating an aqueous meat solution with papain. A5<SP>1</SP>-nucleotide e.g. inosinic acid, sodium inosinate and sodium guanylate may be added to the mixture after the pH has ben adjusted to 6.5-7.0.
Patent GB-654400-A (GB)
Title: Improvements in and relating to apparatus for the reception of electric oscillations
IPC: H03B21/04
Filed: 1946-08-16
Abstract: 654,400. Superheterodyne receivers valve generating circuits. SOC FRANCAISE DES TELECOMMUNICATIONS. Aug. 16, 1946, No. 27357/49. Convention date, Jan. 21. Divided out of 654,355, under which a Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 16, 1946. [Classes 40 (v) and 40 (vi)] The received signals pass through a first frequency changer supplied from a stabilized oscillator adapted to have regularly stepped frequency values so that the resultant oscillations are comprised in a considerably smaller band than the total range of received signals, the resultant oscillations then being passed through a second frequency changer fed by a second local oscillator which is continuously variable over a range equal to the reduced band. In the embodiment, Fig. 5, signals in a frequency range ot 2-20 m.c. are received on aerial 150 and passed through tuned amplifier 170, 174, 175 to a grid 180 of a triode-hexode mixer 181, having grids 182, 183 to which is applied the output of a stabilized local oscillator 153. The successive local frequencies, selected by a switch 191, have the values 2, 4, 6, 8 ... 16 mc. and thus reduce the incoming signal frequencies from 2-20 mc. to a band of 2-4 mc. These oscillations are fed to a grid 199 of a second frequency changer 198 to a grid 200 of which are fed oscillations from an oscillator section 201 having a tuned circuit continuously variable by a condenser 203 over a frequency range of 1525-3525 kc. This gives a fixed second intermediate frequency of 475 kc. which is selected by circuit 204 and fed to subsequent stages. In the first frequency changer 181, an output at the local frequency is taken from the triode section 193 and fed to coil 196 coupled to coil 197 in opposition to coil 195 fed from the hexode section 194. This prevents the local oscillator frequency being passed unchanged to the second frequency changer 198. The local oscillator unit 153 comprises a prime oscillator 187 stabilized alternatively by piezoelectric crystals 184, 185 adjusted to 6 mc. and 8 mc. respectively, the output of which is fed to a grid 157 of a frequency changer 158. The output circuit of the frequency changer 148 includes a circuit 160 tunable to frequencies 2, 4, 12, or 16 mc. and a harmonic generator 161, an output of which is selected by a circuit 162, fixed tuned to 4 mc., and fed back to a grid 163 of the frequency changer 158. An output from the harmonic generator 161 may also be taken from a circuit 164 tunable to 10 or 14 mc. Switch 191 selects a desired local frequency either direct from the output of oscillator 187, from circuit 160, or from circuit 164, these covering all the required values 2, 4, 6... 16 mc. The above method ensures that for each wave-band the basic frequency of the local oscillation and its harmonics lie outside the band.