baber/WOPTO huggingface dataset:
Patent GB-131161-A (GB)
Title: Improvements in the Manufacture of Vanillin.
IPC: C07C45/41
Filed: 1918-08-20
Abstract: 131,161. Confectionery Ingredients, Ltd., Matthews, F. E., King, A. T., and Kane, T. Aug. 20, 1918. Vanillin esters and ethers are prepared by treating acyl or aralkyl derivatives of vanilloyl chloride in solution in toluene, xylene, or other inert solvent, at boiling temperature with hydrogen in the presence of an hydrogenating catalyst, such as palladium or nickel, which may be deposited on a carrier, such as barium sulphate or asbestos. Examples are given of the treatment of vanilloyl chloride p-toluenesulphonic ester; the acetate, benzoate, and carbonate, and the benzyl ether of vanilloyl chloride are also specified as parent materials. Vanillin is obtained by hydrolyzing the esters and ethers in the usual manner. The Provisional Specification also describes the reduction of vanilloyl chloride to vanillin by the process set forth above. Vanillic acid derivatives.-The esters and ethers of vanillovl chloride referred to above may be prepared by treating vanillic acid with acyl or aralkyl chlorides and converting the products into the corresponding chlorides by means of thronyl chloride. According to the Provisional Specification, vanilloyl chloride is prepared by treating an alkali vanillate with thionyl chloride or phosgene.
Patent GB-276433-A (GB)
Title: Improvements in and relating to the cooling and ventilation of dynamo electric machines
IPC: H02K9/16
Filed: 1926-05-28
Abstract: 276,433. Major, C. W., and Crompton & Co., Ltd. May 28, 1926. Dynamos and motors, cooling and ventilating.-A cooling and ventilating system for a machine in which the windings are completely enclosed comprises radiator members with heattransmitting fins of high thermal conductivity screwed at their outer peripheries to the stator and having running packed joints with the shaft at their inner peripheries in combination with an arrangement of fans, guides and baffles within the enclosure such as to circulate, the heated internal air in contact with the radiators and with fins and passages which pass air from the surrounding atmosphere over the external surfaces of the radiators, the whole system being contained within the framework of the machine between the bearings thereof. In the form shown in Fig. 1, the radiators 8 and 9 consist of dished members of aluminium attached by spigot joints to the end rings 2 of the stator core and enclosing the windings by air-tight packed joints. 14 on the shaft. The radiators have internal and extemnal ribs 11. 10. and at their inner openings they have annular curved guides 12, which run freely within the end flanges of circular baffles 19, 20 mounted on the shaft. These baffles, as shown in Fig. 4, have semicircular orifices in their end discs and semcircular axial flanges oppositely directed. By this arrangement, while one-half of the ducts 24, Fig. 1, in the rotor hub are in connection with the space 22 within the radiator at one end and with the space 23 below the guide 12 at the other end, the other half of the rotor ducts 24 are reversely connected. The outer casing 3 has air inlets 4, leading to an annular air jacket 6. and outlets 13 are formed in the bearing brackets. Fans 13 or the ends of the rotor coils circulate the air within the enclosed machine over the internal fins of the radiators and centrifugal fans 15, mounted on the shaft between the bearings, draw outside air over the external fins as shown by the arrows. In an alternative form, there are no openings such as at 4, and a single fan such as 25 is used at one end of the shaft to draw external air in through a single opening in the lower part of the end plate of the opposite end of the machine and expel it through a similar opening in the end plate which adjoins the fan. According to the Provisional Specification, the projecting fins on the radiator members may be replaced by passages through the radiators.
Patent GB-997155-A (GB)
Title: Improvements in or relating to a resilient pivotal joint and to a resilient bushing for use thereon
IPC: F16F1/38
Filed: 1964-04-02
Abstract: 997,155. Resilient pivotal joints and bushings. SOC. APPLICAZIONI GOMMA ANTIVIBRANTI "S.A.G.A." S.p.A. April 2, 1964 [April 9, 1963], No. 13600/64. Heading E2F. [Also in Division F2] In the resilient pivoted joint described in Specification 892,577 and having a tubular layer of resilient rubber or like material interposed between and bonded to inner and outer rigid sleeves, one of which is of hard rubber, either the hard rubber sleeve or the resilient rubber layer is extended axially beyond the other rigid sleeve and resilient layer or the two rigid sleeves respectively and has a circumferential lip on the end portion extending radially beyond the cylindrical exposed surface of the hard rubber sleeve, forming a sealed joint and a recess for grease storage with a mating member e.g. eye or bolt member. In one embodiment Fig. 2 the inner sleeve 51 is of hard. rubber with a helical lubricating groove 54, the intermediate resilient layer 52 being extended at 52b and provided witha a lip 53 and a recess 69 for sealing and lubricant storage respectively. Alternatively Fig. 6 the inner hard rubber sleeve 51 may be extended at 51b to provide the lip 63 and the recess 70 and in a further embodiment Fig. 9 the hard rubber sleeve 65 may form the outer sleeve, with the intermediate resilient layer 66 extended axially in both directions to form lips 67 and a pair of recesses 71a, 71b.
Patent GB-165083-A (GB)
Title: The manufacture of new copper compounds of substantive azo-dyestuffs
IPC: C09B33/16
Filed: 1921-05-13
Abstract: Azo dyes, copper compounds of.  Soluble copper compounds are obtained by treating with copper or a compound thereof the azo dyes prepared by coupling one or two molecular parts of diazotized anthranilic acid or its derivatives, or one molecular part thereof and one molecular part of another diazo compound, with 5 : 51 - dioxy - 2 : 21 - dinaphthylamine - 7 : 71 - disulphonic acid; o-oxyazo dyes are excluded.  The copper compounds of the following dyes are specified: a monazo dye from 4-chlor-2-aminobenzoic acid; disazo dyes from two molecules of anthranilic acid, one molecule of anthranilic acid and one molecule of 4-chlor-2-aminobenzoic acid, one molecule of anthranilic acid and one molecule of aniline; a trisazo dye from one molecule of anthranilic acid and one molecule of anthranilic acid azo-cresidine.  The products dye cotton red-violet, blue, &c. shades. Specification 144,310 is referred to.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the copper compound of the primary disazo dye from 5 : 51 - dioxy - 2 : 21 - dinapthylamine - 7 : 71 -disulphonic acid, anthranilic acid, and 4-chlor-2-aminophenol; this subject-matter does not appear in the Specification as accepted.
Patent GB-201669-A (GB)
Title: An improved liquid spraying appliance
IPC: B05B1/26
Filed: 1922-05-15
Abstract: 201,669. McFarlane, W. J. May 15, 1922. Swivelling joints; plates and the like, securing pipes &c.- The upwardly curved end of a spray-pipe 9 is inserted in a flanged rubber nipple 8 whieh extends through the bottom of a socket 10 connected to a water tap either by a rubber union 11 or by means of a screw union. The pipe 9 is retained either by friction or by lock nuts 10.
Patent GB-457973-A (GB)
Title: Improvements relating to playing cards
IPC: A63F1/02
Filed: 1935-05-09
Abstract: A lacquer which dries with a mat surface is composed of nitrocellulose, ethylcellulose, carnauba, butyl acetate, butyl alcohol, ethyl acetate, toluol and alcohol.  Proportions are given in the Specification.
Patent GB-612444-A (GB)
Title: Improvements in oscillation generators
IPC: H03B5/10
Filed: 1946-05-06
Abstract: 612,444. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 6, 1946, No. 13664. Convention date, May 5, 1945. [Class 40 (vi)] In an oscillator which comprises a valve with a parallel tuned circuit coupling its cathode, anode and control electrodes, frequency drift due to changes in the constants of the circuit is corrected by connecting in parallel with the resonant circuit a series resonant circuit, a change in the inductive reactance of the parallel tuned circuit being compensated by a change in this series circuit. In the Figure, the seriestuned circuit 4, 5 preferably resonates at a higher frequency than the parallel-tuned circuit 2, 3. If the oscillator frequency tends to drift, e.g. due to changes in the valve capacity with temperature, the decrease in the inductive reactance of circuit 2, 3 is compensated by an increase in the capacitive reactance of circuit 4, 5, thus maintaining the oscillator frequency substantially constant.
Patent GB-552461-A (GB)
Title: Improvements relating to the operation of gas-blast electric circuit breakers
IPC: H01H33/32
Filed: 1941-10-24
Abstract: 552,461. Gas-blast switches ; actuation of switches. BRITISH THOMSON - HOUSTON CO., Ltd. (General Electric Co.). Oct. 24, 1941, No. 13683. [Class 38 (v)] In a pneumatically-actuated, gas-blast switch, the operating gas is introduced from the source between a pair of oppositely-arranged pistons in a common cylinder, the pistons comprising the actuating means of the blast valve and movable contacts respectively. The switch proper comprises a structure 10 containing a movable contact-operating member 13, all arranged as in Specification 544,017, the member 13 being reciprocable by means of straight-line linkage 23 and a pneumatic motor comprising a cylinder 18 and piston 19. Air is admitted through closing port 21 or opening port 22 selectively under control of a diverter valve 30 and main valve 29, which latter controls the flow from a storage device 31 of capacity sufficient for one operation. Operation of opening button 43 energizes solenoid 32 which admits air to port 22, so moving piston 19 to the right until cushioned at 24, the piston 19 finally uncovering a port, Fig. 3 (not shown), to relieve the pressure. The opening pressure also acts on piston 51 to open a blast valve 49 and allow a blast of gas to pass into the structure 10 via pipe 16. When the closing button 44 is operated, a solenoid 34 moves valves 30 to the right against spring action 35, so cutting off port 22 and opening port 21, an intermediate piston 37 being apertured for this purpose and acting to close the relief port in this position. The left-hand edge of port 22 is cut away to provide a relief port behind piston 36 and build up a cushioning pressure which also serves to open blast valve 49 and provide a closing blast for the contacts. The movement of valve 30 also causes a limit switch 45 to close the circuit of solenoid 32 and automatically admit the closing pressure to cylinder 18. The building-up of pressure on the left side of piston 19 during switch-closure is of use in bringing about rapid reversal of piston 19 and so providing trip free opening, if necessary, by means (not shown.) responsive to abnormal circuit conditions. Highspeed reclosing means also is referred to. The blast reservoir 52 is located in the main reservoir 25 and supplied therefrom through a metering orifice 53, thus providing for a high-pressure initial blast followed by a low-pressure scavenging stream, thus conserving gas and rendering it immaterial when valve 49 is reclosed. In a modification, Figs. 4, 5 (not shown) the reservoirs are separate and interconnected by a differential valve which has a metering orifice and a spring tending to open the valve. Thus, when the pressure in the blast reservoir falls, the main-reservoir pressure closes the valve and the only communication is via the metering orifice. As soon as the blast valve recloses, however, pressure builds up in the blast reservoir and the valve reopens to provide a rapid restoration of full pressure. Specification 544,685 also is referred to.
Patent GB-966563-A (GB)
Title: Process for polymerisation of vinyl chloride
Inventor: HOLDSWORTH ROBERT SEHON
IPC: C08F14/06
Filed: 1961-04-17
Abstract: Vinyl chloride is homopolymerized or copolymerized with (a) a vinyl ester of a fatty acid, (b) an alkyl ester of a fatty acid, (c) an alkyl ester of maleic or fumaric acids or (d) a mono-isoolefin having less than 8 carbon atoms in aqueous suspension using an oil-soluble polymerization catalyst in the presence of a polyvalent metal salt soluble in the aqueous suspension medium and a surface active agent comprising an organic sulphate or sulphonate and/or an alkyl phosphate having from 5 to 50 carbon atoms or a salt of the surface active agent, the polyvalent metal salt and the surface active agent each being present in an amount between 0.02 and 0.20 parts per 100 parts of polymerizable compounds, additionally where the surface active agent is only the sulphate or sulphonate the pH of the aqueous medium shall be 7.0 or below.  Comonomers used in the examples are vinyl acetate, dibutyl maleate and isobutylene.  The polyvalent metal salt may be a salt of magnesium, calcium, strontium, zinc, cadmium, barium, aluminium, tin, lead, antimony, titanium or zirconium.  A list of suitable surface active agents is given.  The products of the process are improved polymer beads of a size greater than 80 mesh (U.S. size).  The particles have a large effective surface area and are capable of producing a dry blend within 60 minutes when 100 parts thereof are blended with 100 parts of dioctyl phthalate plasticizer. Other additives may be basic lead carbonate, lead stearate, clay, cadmium octoate, stearic acid and a polymeric plasticizer.
Patent GB-942907-A (GB)
Title: Multi-point measuring apparatus
IPC: G01K1/02
Filed: 1962-04-10
Abstract: 942,907. Electric Indicating systems. BRISTOL CO. April 10,1962 [July 13,1961], No. 13731/62. Heading G1N. Apparatus for measuring and recording the temperature at a number of locations by cyclically switching a measuring circuit to thermocouples at the locations is characterized by a manually adjusted selector switch whereby only the thermocouples at selected locations are sensed. The automatic sequencing is initiated by operating a double-pole switch 170 to position A, whereby a motor 27 balances the potential at potentiometer slider 14 against that of a selected thermocouple 95B, the control winding of the motor being fed with the difference potential after amplification at 28. The motor simultaneously drives a bracket 50 along a shaft 43 by means of a cable 47 wound round a drum 46 coupled to the slider 14. Switch 170 also energizes a timer motor 78 which rotates shaft 70 carrying a cam 72, operating switch 74 to energize a solenoid 68 whereby a printing wheel 55 is made to mark a continuously driven chart 41, followed by cam 71, operating switch 73 whereby solenoid 132 trips switch 130 to break the supply to motors 27, 78. Switch 130, now in position A, produces energization of clutch 98, whereupon continuously running drive motor 94 is coupled to shaft 83, which turns a selector wheel 101 having pins 102 each associated with one position on a switch plate 85 and manually adjusted to protrude from the wheel 101 if the associated switching position in plate 85 is connected to a thermocouple' whose output is to be measured. The next protruding pin 102 causes operation of switch 130 to its normal B position, stopping shaft 83 and preparing for the next balancing cycle. Shaft 83 is coupled to a shaft 43 which rotates the printing wheel 55 to the index indicative of the thermocouple now to be measured. Specifications 602,460 and 690, 002 are referred to.
Patent GB-995754-A (GB)
Title: Catalyst regeneration
IPC: B01J23/96
Filed: 1962-04-10
Abstract: A process for regenerating a metal-on-carbon catalyst which has suffered a loss in activity owing to use in an alcohol and/or ketone dehydrogenation process comprises contacting the catalyst with an aqueous alkaline solution or water or a polar organic liquid boiling in the range of 20-250  DEG C. to remove material soluble therein, and drying the catalyst.  Reference is made to a Pt on C regeneration sequence.  Specification 929,680 is referred to.
Patent GB-424386-A (GB)
Title: Distance relay for the protection of electric plants
IPC: H02H3/40
Filed: 1934-05-08
Abstract: 424,386. Protective cut-out systems. WIDEROE, R., 36, Borgenveien, Vinderen, near Oslo, Norway. May 8, 1934, No. 13915. Convention date, May 9, 1933. [Class 38 (v)] An impedance-dependent relay has the release device 8 carrying the contact 23 for making the circuit of the trip coil 29, held by a latch 7 on a bimetal element 6 with a compensating strip 12, the latch 7 being restrained by a voltage magnet 9 and armature 10. The strip 6 is energized from the secondary of a current transformer 4, the primary of which is normally short-circuited by a contact 2 which, however, on overload, is opened by the armature 3 of an overload coil 1. At the same time, armature 3 closes at 24 a short-circuit to an economy-resistance 20 and meter 21 for testing the voltage circuit. The iron of magnet 9 is so designed that the force exerted on 10 is proportional to the voltage of the line, and the transformer 4 is readily saturable by reducing the sections at 11 so that the current in the strip 6 is proportional to the square-root of the line current. The force exerted by the strip 6 is thus proportional to the product of the current in the line and the time during which the strip is heated, and since that exerted by coil 9 is proportional to the line voltage, the time is proportional to the quotient of line voltage by line current, that is, to line impedance. A directional relay may control a contact 28 or a mechanical lock 31 for the device 8. Operation of contacts 23 opens contacts 25 to short the transformer 4 and prevent possible overheating of the strips 6. The coil 9 may have an adjustment screw 14 or tappings. The coil 1 may, on operation, remove a lock 42 from the device 8 and may start a stop-watch which is stopped by operation of contacts 23 to indicate the time consumed in releasing, and therefore the location of the fault. The Specification as open to inspection under Sect. 91 described and illustrated a three-phase adaptation wherein all three strips acted on a common device 8 having a lock controlled by a directional relay of the two-wattmeter type. The operation could also be made to depend on the phase-angle between current and voltage by providing the voltage magnet with a current-responsive winding with an adjustable resistance shunt. This subject-matter does not appear in the Specification as accepted.
Patent GB-798031-A (GB)
Title: Improvements in or relating to the manufacture of moulded panels
Inventor: RULE TOM EDGAR
IPC: B28B1/16
Filed: 1954-05-12
Abstract: 798,031. Moulding hollow panels. REFCON STRUCTURES, Ltd. May 11, 1955 [May 12, 1954], No. 13917/54. Class 87(2). [Also in Group X] A hollow panel is moulded from fly ash and cement by first placing a layer 18 of expanded metal in a mould having a wooden base 11 and containing several spaced sheet metal blocks 16, casting the material in the mould, removing the partly formed panel, after the material has set, placing it on a layer 27 of wet fly ash and cement slurry and allowing the two parts to become united, and finally setting the material with steam. Specification 613,943 and 9347/10 [Class 87], are referred to.
Patent GB-773367-A (GB)
Title: An improved electric spraying pistol
IPC: B05B9/08
Filed: 1954-05-12
Abstract: 773,367. Pumps for spraying apparatus. KREBS, T. May 12, 1954 [May 23, 1953; Nov. 12, 1953; Jan. 11, 1954], No. 13922/54. Class 102(1) [Also in Group XXIX] In a pump for a spraying apparatus, the piston 10 is actuated by a rod 8 which engages the armature 5 of an electromagnet 4. The armature has a recess 5d which is engaged by a spring-loaded pin 5a to form a pivot and prevent longitudinal movement; alternatively the pin 5a is connected to the armature by a transverse pin. The rod 8 engages a groove 5c in the armature which when attracted makes an angle a with the axis of the pump cylinder which is greater than 90 degrees. The reciprocation of the piston is controlled by the screw 6. To locate the pump cylinder 12 in the housing 1, so that a recess 12c in the cylinder aligns with a projection 18a in the suction pipe screwed into the body 1, a groove 12a is provided in the cylinder so that its end engages a set screw 1c in the casing. Alternatively the screw may be in the cylinder and co-operate with a groove or slot in the casing. In another construction, the cylinder has a flange which abuts the casing. -Special forms of spray-producing nozzles are fitted (see Group XXIX). Specification 732,606 is referred to.
Patent GB-530103-A (GB)
Title: Improvements in or relating to adhesive material
IPC: C09D5/22
Filed: 1939-03-30
Abstract: 530,103. Luminescent materials. DUREX ABRASIVES, Ltd., and CORWIN, C. H. March 30, 1939, No. 13989/40. Divided out of 527,298. [Class 39 (i)] A non-drying or pressure sensitive adhesive material comprises rubber, rubber latex, or rubber rosin and luminous material, which may comprise strontium sulphide, cadmium sulphide, zinc sulphide or a mixture of zinc sulphide and radium bromide. Casein is also mentioned. Instances are given of compositions containing in addition to the substances mentioned zinc oxide, preservatives and anti-oxidants, examples of which are given. The substances may be applied to a backing material such as paper, cloth, and transparent cellulosic materials and used as a luminous adhesive tape, or the backing may be removed and the material left.
Patent GB-1452424-A (GB)
Title: Composite films
IPC: B29C49/00
Filed: 1974-03-29
Abstract: 1452424 Multilayer plastics films IMPERIAL CHEMICAL INDUSTRIES Ltd 11 Nov 1974 [12 Aug 1973 29 March 1974] 48422/74 and 13995/74 Headings B5B and B5N [Also in Division B2] A multiple layer film comprises a substrate layer of a polymer or copolymer of an alpha olefine, the molecule of which contains 2 to 6 carbon atoms and which has on at least one surface thereof a layer of a copolymer of propylene and a C 4 -C 10  alpha olefine, e.g. butene-1, hexene-1, heptene-1 or decene-1, there being 80- 95% propylene. Suitable substrates include polymers and copolymers of ethylene, propylene, butene-1, 4-methylpentene-1 and hexene-1. A molten layer of the polypropylene/alpha olefine copolymer may be extruded on to a preformed substrate or the polymeric components of the substrate and coating layer may be coextruded so that they contact while still molten. Preformed sheets of the substrate material may be laminated together, preferably with the use of adhesives, e.g. by passage between pressure rollers. Adhesion of the copolymer layer to the substrate may be improved by orienting the substrate after application of the copolymer layer. Adhesion may also be improved by using an intermediate anchor coating applied to the substrate. The non-seal forming surfaces may be subjected to chemical treatment, e.g. chromic acid in sulphuric acid, hot nitric acid or ozone or the film may be exposed to ionizing radiation or to a thermal flame to improve print receptivity. A substrate layer 25 microns thick may be provided with a copolymer layer 0À75 microns thick on one side and 0À25 microns thick on the other. Additives such as dyes, pigments, lubricants, antistatic agents, e.g. of Formula I antioxidants, antiblocking agents, surfactants, slip aids, glass improvers, prodegradants and ultra violet light stabilizers may be employed.