baber/WOPTO huggingface dataset:
Patent GB-1379390-A (GB)
Title: Brake pressure control valves
IPC: B60T8/26
Filed: 1971-07-31
Abstract: 1379390 Brake warning devices; brake pressure control valves GIRLING Ltd 31 July 1972 [31 July 1971] 30625/71 Heading F2E and F2F A brake pressure control valve regulates the rear brake pressure relative to the front but upon failure of the latter allows the rear brake pressure to pass to the rear actuators unregulated. Front brake pressure passes from a master cylinder to the front actuators via inlet and outlet ports 4 and rear pressure passes from the master cylinder to the front actuators via inlet 2 and outlet 3. As the pressure increases the combined pressure acting in a chamber 5 on a piston 10 and on the annular area of piston stem 11 overcomes the force of a spring 13 thereby causing a valve head 9 to be seated on seat 7 and closing off inlet 2 from outlet 3. An increase in the inlet 2 pressure again unseats avalve head 9 and this is continually repeated to regulate the rear brake pressure. If the front pressure fails spring 13 holds valve head 9 unseated to allow the rear brake pressure to flow from inlet 2 to outlet 3 unregulated. A warning device 20 may be provided comprising a piston 21 which is acted upon by pressure in chambers 22, 24 connected to the front and rear circuits so that if either of these fail the piston is displaced causing vertical movement of a plunger 26 which actuates an electric warning switch 25.
Patent GB-908697-A (GB)
Title: Gas-filled electron discharge device
IPC: H01J17/49
Filed: 1958-09-25
Abstract: Transparent conductive layers, e.g. symbolshaped electrodes, can be formed on glass, plastics or mica plates, which may be in the shape of the symbols, by causing vapours of tin, titanium, indium or silicon tetrachlorides to deposit an oxide of the metal on the surface of the heated plates.  Alternatively tin chloride in suspension can be sprayed on the heated plates to produce a tin oxide layer thereon, or metallic salts can be applied to the plates which are subsequently heated to form layers of the oxides. If only a portion of the plate is to be provided with a conductive layer then provision is made for heating only that portion of the plate. Alternatively the entire plate is heated and the metallic compound for forming the oxide layer is applied through a template, e.g. by spraying.
Patent GB-164395-A (GB)
Title: Improvements in or relating to the manufacture of steel
IPC: C21C7/064
Filed: 1919-12-08
Abstract: 164,395. Hadfield, Sir R. A. Dec. 8, 1919. Alloys.-A nickel chromium steel, substantially free from sulphur and phosphorus, may be obtained from steel scrap by first melting down in a basic open-hearth furnace with carbon and lime. Iron oxide or scale and more lime are added to the molten charge, which is then brought to the boil and continued until the carbon content has been reduced to about 0.3 per cent. The slag is then removed, and the boil is stopped by adding a deoxidant such as ferrosilicon. The bath is again covered with lime and the heating is continued until the sulphur content is reduced to about 0.01 per cent, fluorspar being added if necessary to liquify the slag. The final composition may then be adjusted by adding pig-iron, ferro-chrome, nickel, &c., and the metal tapped for casting; or the metal may be finished in an electric furnace with lime and carbonaceous material such as anthracite, the alloying ingredients being added before or after this treatment. Manganese steel scrap may be added to the original charge to facilitate removal of sulphur.
Patent GB-1388060-A (GB)
Title: Sensing humidity element
IPC: G01N27/12
Filed: 1972-06-30
Abstract: 1388060 Surface sulphonated cross-linked polystyrene PHYS-CHEMICAL RESEARCH CORP 30 June 1972 [7 July 1971] 30759/72 Heading C3P [Also in Division G1] A humidity sensing element is produced by surface sulphonating the surface of a member of a cross-linked styrene polymer using sulphuric acid at a concentration of at least 96% and at a temperature of from 30‹ to 65‹ C. for a period of from 10-120 minutes, and thereafter treating the sulphonated surface with a salt solution. The polymer is preferably a styrene/ divinyl benzene copolymer. After sulphonation the surface may be washed until the washing water has a resistivity of at least 2À5 megohms at 25‹ C., preferably after washing with sulphuric acid of decreasing concentration. The salt solution is preferably an aqueous solution of a lithium salt such as LiCl. The surface may be roughened to 60-220 mesh (U.S. standard) before sulphonation.
Patent GB-854794-A (GB)
Title: Improvements in or relating to screen printing machines
IPC: B41F15/42
Filed: 1958-09-29
Abstract: 854,794. Stencilling-apparatus. KRAFT, R. Sept. 29, 1958 [Oct. 1, 1957], No. 30964/58. Class 100(2) In a screen-printing machine comprising a printing table, at least one endless stencil of material responsive to magnetic forces, means for moving said stencil past said table, and means for moving material to be printed between said stencil and said table in the same direction and at the same speed as said stencil, said table is adapted to produce magnetic forces for attracting said stencil to said table and magnetic rollers are provided to engage the outside of said stencil for guiding the same. The material 4, Fig. 2, is carried on an endless blanket 3. The rollers 5 are carried on a frame 7 and are connected by endless drive chains to be adjusted by a hand-wheel 6, a hand-wheel 8 adjusting the frame 7 laterally. The stencil 9 is adjusted by the wheels 6, 8 while the rollers are fully and the table 1 partially magnetised. Electromagnets or permanent magnets may be used. For three-colour printing the material is led past three such stencil units; and the three-colour-printing mechanism may be arranged horizontally, or vertically with the table vertical. In another form, only one roller is used, at the top, to cause the stencil to be arranged triangularly, or two further rollers, one at each end of the stencil, can be used. In another form, Fig. 7, the material 4 is supported on a hollow cylinder 16 and led past two arcuate tables 1, each unit having three rollers 5, for two-colour printing. The magnetic condition of the table and rollers can be independently varied.
Patent GB-1116038-A (GB)
Title: Improvements in or relating to disc brakes
IPC: F16D65/095
Filed: 1966-07-11
Abstract: 1,116,038. Disc brakes. ALFRED TEVES MASCHINENUND ARMATURENFABRIK KOMM. GES. 11 July, 1966 [4 Dec., 1965; 25 March, 1966], No. 30981/66. Heading F2E. In a disc brake of the kind having a pair of pads 4, 4<SP>1</SP> which are applied to opposite sides of an axially fixed disc 2 by a pair of pistons 3, 3<SP>1</SP> housed in a brake carrier 1, 1<SP>1</SP> and engaging the pad backing plates 5, 5<SP>1</SP>, circumferential removal of the pads through an aperture at the rear side of the brake carrier is facilitated by the provision of a removable pin 8 which is mounted in the brake carrier and engages the ends of arms 6, 6<SP>1</SP> of the backing plates, the arms being bent so as to extend first tangentially and then radially, thus minimizing space requirements whilst allowing the opposite sides of the backing plates to contact guide surfaces 10 on the brake carrier. The pin 8 carries a resilient bush 7 which is enlarged at its central portion so that it not only resiliently supports the backing plates but also exerts a brake releasing force on the pads which increases the pad clearance as the pads become fully worn. Stops 12, 12<SP>1</SP> on the brake carrier prevent the backing plates from scoring the disc when the pads are fully worn.
Patent GB-154886-A (GB)
Title: Improved manufacture of serum from animals
IPC: C07K16/06
Filed: 1920-11-02
Abstract: 154,886. Penfold, W. J. Nov. 28, 1919, [Convention date]. Pumps, syringes, and like appliances.-In the preparation by known methods of antitoxic or other serums form animal blood, the red corpuscles, after separation from the plasma, are reinjected into the veins of the animal so as to prevent anµmia and to permit greater quantities of blood to be withdrawn during a given period. Blood withdrawn from the animal by a cannula D is received under sterile conditions in a flask A, Fig. 1, containing a small quantity of potassium oxalate or sodium citrate solution to prevent clotting or coated with paraffin for the same purpose. The red corpuscles are allowed to settle by gravity or by use of a centrifuge and the plasma is decanted to another receptacle wherein it is clotted by the addition of a lime salt or otherwise and the serum is expressed from the clot. The red cells and a small quantity of plasma remaining in the vessel A are transferred, by pressure or suction, through a tube A' and muslin filter C<2> to a vessel C whence they are forced by bellows C<5> through a tube C<4> to a cannula inserted in the vein of the animal from which the blood was drawn or another animal of the same species. The receiving-vessel A is shaken whilst the blood is running into it in order thoroughly to mix the anti-clotting solution with the blood, and the various parts of the apparatus are preferably maintained at approximately the temperature of the animal body.
Patent GB-634477-A (GB)
Title: Improvements in enamel coatings for ferrous metals
IPC: C03C8/06
Filed: 1947-11-24
Abstract: 634,477. Enamelling. POOR & CO. Nov. 24, 1947, No. 31110. Convention date, June 19, 1941. Drawings to Specification. [Class 56] An enamel coating composition for coating ferrous metals consists of a mill formula including an aqueous alcohol vehicle, a bonding compound formula composed of Sb 2 O 3'  TiO 2  and nickel chloride, and a blend of a raw glass batch a of relatively high maturing temperature with a eutectic frit b of relatively low maturing temperature. The aqueous alcohol vehicle consists of a mixture of 91.266 parts water, 0.454 part octyl sulphide and 8.280 parts isopropyl alcohol, butyl alcohol or diethylene glycol monobutyl ether, and serves to increase the rate of drying, and by lowering the surface tension to improve the spreading. The bonding compound is made from a colloidal suspension of 60 parts Sb 2 O 3 , 1.5 parts TiO 2  and 60 parts water, ground in a ball mill, dried, and 100 parts of the mixture mixed with 5 parts of nickel chloride. The frit a comprises the following parts by weight, feldspar 26.10, borax 39.20, silica 15.70, soda ash 4.90, sodium nitrate 0.90, fluorspar 8.40, calcium carbonate 3.90, bone ash 0.90, and is mixed and then smelted at 2200‹ F. Frit b contains at least 27 per cent BaO and 10.2 per cent NaF, and may be formed by mixing 34.5 parts barium carbonate, 22.8 parts sodium silico fluoride, 21.0 parts boric acid, 10.8 parts quartz, and 10.6 parts zinc oxide and smelting at 1900‹ F. The mill formula comprises a mixture of 60 parts of frit a, 40 parts frit b, 2.10 parts of bonding compound, 40 parts alcohol vehicle, 7 parts clay, 0.25 parts borax, 6 parts calcium titanium antimonate, and 0.25 part black iron oxide. After grinding in a ball mill the mixture may be sprayed on to the metal which has been cleaned in an alkaline cleaner, rinsed, pickled, rinsed, nickel dipped, rinsed, neutralized and dried. The single coated metal is then dried and fired at about 1350-1400‹ F. to give a rust-proof product. A decorative coating is obtained by forming a clear glass frit and mixing this in a ball mill as follows, 100 parts clear glass frit, 4 parts colour oxide, “ part magnesium carbonate, 5 parts clay, 38 parts water, spraying the product to form a second coating, drying, and firing. Since lower firing temperatures are employed the process can be applied to sheets of lighter gauge than previously.
Patent GB-161629-A (GB)
Title: Improvements in spigot taps
IPC: F16K5/12
Filed: 1919-12-12
Abstract: 161,629. Muntz, W. E. Dec. 12, 1919. Plug cocks.-Relates to improvements in plug cocks such as are described in Specification 128,343 for controlling two or more fluids, such as gas and air supplies to gas burners or gas stoves, by pairs of crossing slots, one slot of each pair being tapered. For this purpose the hollow spigot or plug is divided bv one or more transverse partitions 8, Fig. 1, in conjunction with corresponding partitions 2 in the casing in the same plane or planes. In the example shown, the slots 13, 14, Figs. 1 and 3, in the casing for gas and air, respectively, are tapered and elongated laterally, whilst the slots 9, 10 in the plug are elongated axially and are rectangular. The slot 13 for gas increases in depth to a maximum, the remaining part being uniform, as shown in Fig. 3. The slot 14 for air increases to a maximum and thereafter decreases, as shown in the same Figure. With this arrangement, the proportions of the gas and air can be kept constant up to a maximum discharge, and thereafter the proportion of air can be reduced. The air inlet is protected by a perforated casing 3, the gas being admitted at the supply connection 5. The gas is conducted through an axial tube or jet 15 and discharged in the vicinity of the port 7 in the end of the plug. The plug is rotated by the engagement of a spindle 11 having a. conical packing collar held to a corresponding seating by a spring 12.
Patent GB-1496326-A (GB)
Title: Photographic colour developer compositions
IPC: G03C7/30
Filed: 1974-11-12
Abstract: 1496326 Photographic colour developer EASTMAN KODAK CO 12 Nov 1974 [12 Nov 1973] 31379/77 Divided out of 1495503 Heading G2C Photographic colour developers containing an aminophenol colour developing agent and a hydroxylamine salt in an aqueous alkaline solution are stabilized by incorporation of 1, 3-diamino-2- propanol tetra-acetic acid and a hydroxyalkylidene diphosphoric acid sequestering agent, which may have the Formula:- Where R<SP>2</SP> is alkyl of up to 5 carbons, e.g. methyl or ethyl.
Patent GB-1431322-A (GB)
Title: Reactive azo dyestuffs
IPC: C09B62/006
Filed: 1973-07-02
Abstract: 1431322 Reactive azo dyestuffs BAYER AG 2 July 1973 [3 July 1972] 31420/73 Heading C4P A reactive azodyestuff corresponds in the acid form to where R is H or alkyl, W is a direct bond or a bridge member, Z denotes a reactive group and A denotes the radical of a coupling component. They are prepared by acylation, and include monoazo- and disazo-dyestuffs. Among the reactive groups are halopyrimidines and halotriazines, quinoxaline, pyrazolone, and benzthiazole groups. The dyes produce red to yellow colours by dyeing or printing materials containing hydroxyl or amide groups, such as textile fibres and fabrics of wool, silk, synthetic polyamide, polyurethane and natural or regenerated cellulose materials.
Patent GB-187488-A (GB)
Title: Improvements in fishing-reels
IPC: A01K89/015
Filed: 1921-11-25
Abstract: 187,488. Briggs, W. H. Nov. 25, 1921. Reels and winches, rod.-A reel B, which may be hollow, is mounted between a shoulder G and a nut H on a sleeve F rotating on a tapered spindle A, which is carried by the frame C and has a shoulder D to prevent the sleeve from binding on the taper. A plate J is held between shoulders on the reel B and nut H. The sleeve F is adjusted axially by a screw K bearing on a pointed end E of the axle. The nut H may form an oil-retaining cap, in which case the shoulder D has a duct passing oil to the tapered parts. A key B<1> prevents rotation of the sleeve within the reel. A check wheel L may be integral with the shoulder G.
Patent GB-1062818-A (GB)
Title: Rotating type cam grinding machine
IPC: G05B19/18
Filed: 1964-08-04
Abstract: 1,062,818. Abrading. TOYO KOGYO KABUSHIKI KAISHA. Aug. 4, 1964 [Aug. 9, 1963], No. 31572/64. Heading B3D. [Also in Division G3] A cam-shaft grinding-machine, controlled by a numerical control system (see Division G3), comprises a work-table 15, on which is mounted a cam-shaft assembly 14, and a wheel head slide 17 on which is mounted a grinding-wheel 3 and a wheel truing unit 16. The work-table 15 is moved in the directions of the arrows by the action of an hydraulic actuator 18 to index each cam 1 in front of the grinding-wheel 3. The cam-shaft is incrementally rotated by a worm-wheel 21 driven by an electrohydraulic pulse motor 19. The wheel-head slide is rapidly fed or retracted from a starting position by the action of an hydraulic actuator 22 and incrementally fed through a worm-wheel 25 driven by an electrohydraulic pulse motor 23. Offset across the direction of movement due to motor 23 is effected by a worm-wheel 29 driven by an electro-hydraulic pulse motor 27. The wheel 3 is driven by a motor 34 through a belt 37 and pulleys 35, 36. The wheel truing unit 16 is incrementally positioned along the radius of the grinding-wheel by an electrohydraulic pulse motor 31 and reciprocated across the wheel by an hydraulic actuator 33. The machine is numerically controlled by a profile tape and a sequence tape, to carry out a cycle which includes rough grinding, dressing, finish grinding and sparkout.
Patent GB-637834-A (GB)
Title: An improved device for securing a shrub or plant to a support
IPC: A01G17/12
Filed: 1947-11-29
Abstract: 637,834. Plant supports. PERKINS, C. H. Nov. 29, 1947, No 31616. [Class 6 (ii)] A plant support consists of a length of coiled-wire cord, sheathed where it encircles the plant, and having its free ends passed through holes in a buckleplate 5. One end is retained by being bent through the holes 6, 7, and the other bent back behind projections 9, 10 after passing through the hole 8.
Patent GB-1355676-A (GB)
Title: Vapour-liquid contacting
IPC: B01D3/26
Filed: 1971-07-06
Abstract: 1355676 Vapour-liquid contacting apparatus MERIX CORP 6 July 1971 [20 July 1970] 31768/71 Heading B1R Vapour-liquid contacting apparatus comprises a column in which a contacting stage 20 is arranged downstream of sources of vapour and liquid so that the vapour and liquid flow co-currentally through the stage, the stage comprising tubes 34 with walls spaced from the housings and fluid outlets 36, and the liquid source comprising feed conduits, portions of which 22 extend transverse to the column axis and have a plurality of openings 24 for the distribution of liquid into the vapour stream. The tubes 34 are supported by a plate 30 provided with troughs 38, and honeycomb packing 50 extends between the tubes 34 and the feed conduit 22. In use, vapour from a reboiler 16 impinges upon liquid issuing from the openings 24 and carries it into the packing where the two are intermixed. From the packing, the vapour and entrained liquid pass through the tubes 34 in which rotating blades (44), Fig. 4 (not shown) causes the liquid in the stream to flow along the wall of the tubes and out of slots 42 into the troughs 38 from which it is returned to a conduit 22 by downcomer pipes 39. Rotatable blades (48) are provided at the tops of the tubes 34 adjacent the outlets 36. Several stages 20 may be provided in a column.
Patent GB-1396007-A (GB)
Title: Copy apparatus
IPC: G03D5/06
Filed: 1972-07-06
Abstract: 1396007 Developing machine ADDRESSOGRAPH MULTIGRAPH CORP 6 July 1972 [8 July 1971] 31782/72 Heading  G2X A developing machine comprises a roller 52 for contact with a copy sheet; contact means (e.g. blades 86, 88 or Fig. 4 (not shown), a pressure roller 53 and rotatable wiper rod (63)) movable (e.g. about shafts 90, 92) toward and away from the roller between an engaged and release position by a control means; means acting in conjunction with roller 52 and the contact means whereby liquid is applied to the copy sheet as it passes over the roller; means (e.g. a guide 122) enabling a copy sheet to be fed into contact with roller 52 and then away from it; means (e.g. a motor (76) and an endless chain (75)) for normally rotatably driving roller 52 in one direction; a slip clutch (78) which permits over-run of the roller in the normal direction and also permits opposite rotation when the motor is reversed so that the roller may be fully rotated in either direction to allow jammed copy sheets to be cleared. As shown, a diazotype copying machine comprises a housing containing a contact exposure apparatus 30 in the lower section and a developing apparatus 12 in the upper section. Developer liquid is pumped from a reservoir and applied through an apertured conduit 100 to a blade 86 which is contact with, and distributes developer over, surface 58, excess developer being wiped off to a trough (114) for filtration and recirculation. A circuit is provided to control the operation of the machine.
Patent GB-338687-A (GB)
Title: Improvements in and relating to display or advertising devices
IPC: G09F1/06
Filed: 1929-10-19
Abstract: 338,687. Oliver, H. B., and Fletcher & Son, Ltd. Oct. 19, 1929. Cards for displaying; figures or models.-A collapsable display card 8 adapted to stand behind an article such as a bottle 11 has a base portion 9 bent at 10 and inserted under the article, and a forwardly projecting portion 12 slotted or otherwise adapted to engage the article and hold the card erect. Additional parts 15, 16 may be provided, attached respectively to the part 12 and to the lower part of the card by a strut 17, and these parts may be appropriately shaped to represent a shield, a wineglass, &c., while the main card 8 may represent a head peeping from behind the bottle 11. When the part 16 is omitted, alternative creases such as 10<1>, 10<2> may be provided to allow for articles of different heights.
Patent GB-1456103-A (GB)
Title: Vocoder system
IPC: G10L19/02
Filed: 1974-07-18
Abstract: 1456103 Base band vocoders TELECOMMUNICATIONS RADIOELECTRIQUES ET TELEPHONIQUES 18 July 1974 [20 July 1973] 31890/74 Heading H4R In a base band vocoder in which a low frequency range of the signal is transmitted together with information as to the energy content of a number of partial frequency ranges of the high frequency range, to be used at the receiver to modulate an excitation signal derived from the low frequency range, the excitation signal is derived by delta modulation of the low frequency range. As described, Fig. 2, the range of 200 to 1050 Hz of the incoming speech is selected by filter 3 and converted to digital form by delta modulator 9. The high frequency range of 1050 to 3400 Hz is split into contiguous bands by filters 5 1  to 5 N  of bandwidth 100 to 400 Hz the energy in the bands detected by rectifiers 6 1  to 6 N  and the resulting signals low pass filtered and digitized by filters 7 1  to 7 N  and converters 8 1  to 8 N . The resulting digital signals are multiplexed for transmission in multiplexer 10. At the receiver the digital signals are demultiplexed at 14, the spectrum function signals converted to analogue signals in the d to a converters 15 1  to 15 N  and used to control signals for modulators 19 1  to 19 N  which are also fed with the digitized base band signal as the excitation function. The modulator outputs are fed through filters 20 1  to 20 N , of similar frequency bands to the filters 5 1  to 5 N  before combining at 22 with the base band signal, converted back to analogue form in the d to a converter 16. Filters 20 1  to 20 N  may be located on the inputs to modulators 19 1  to 19 N  rather than the outputs as shown.
Patent GB-375190-A (GB)
Title: Improved culinary appliance
IPC: A47J36/12
Filed: 1931-11-19
Abstract: 375,190. Holding-tools. LAWSON, K. R., 9, Portland Terrace, Jesmond, Newcastle-on-Tyne. Nov. 19, 1931, No. 32074. [Class 61 (ii).] A device for lifting the lids of cooking vessels comprises a rod 1 fitted with handle 2 and provided with a book 11a to engage a lid handle and a lateral hook 11 to engage a lid knob, on which rod 1 slides a member 3 bent down at 4 and shaped at 8a to engage under the lid and having at the end a pivoted cam member 5 for securing the member 3 on the rod. A prong 10 for food testing is fixed to the end of the rod and the body of the slider 3 is fitted with a flint igniter 13 coacting with a toothed part 15 of the rod 1, the slider being actuated for this purpose by a handle 16.