baber/WOPTO huggingface dataset:
Patent GB-714430-A (GB)
Title: Improvements in electric generators
Inventor: CHAMBERS WILLIAM ARNOLD
IPC: H02K21/00
Filed: 1951-07-16
Abstract: 714,430. A.C. generators. BRITISH ELECTRICON (LONDON), Ltd. July 8, 1952 [July 16, 1951], No. 16858/51. Classes 35 and 38(4) A single or polyphase A.C. generator comprises two separate alternators connected in series, the relative phase's of the two machines being adjustable to vary the output voltage. In the form shown, the generator has two permanent magnet rotors 8 on the same shaft 6 each acting on a 'separate stator 12, these stators having their windings 14 connected in series. The lower stator 2 is fixed while upper stator 4 is able to turn on a bush 24 against the restraint of an adjustable peripheral spring 30. As the load current rises, the torque on the stators causes the top stator 4 to rotate against the spring and so displace the phases of the two generated voltages, the consequential reduction of terminal voltage limiting the load current. It is stated that the stator and rotor may be interchanged, the field may be excited instead of being permanently magnetized. the machines may be of unequal sizes, and there may be more than two in series.
Patent GB-1269073-A (GB)
Title: Photographic silver halide emulsions and materials containing them
Inventor: SALMINEN WILHO MATHIAS
IPC: G03C7/305
Filed: 1969-04-01
Abstract: 1,269,073. Photographic silver halide colour material. EASTMAN KODAK CO. April 1, 1969 [April 1, 1968], No. 16982/69. Addition to 1,269,075. Heading G2C. A photographic emulsion comprising lightsensitive silver halide grains dispersed in a hydrophilic colloid binder contains three non- diffusible 5-pyrazolone photographic coupling compounds which react with the oxidation products of a primary aromatic amine colour developing agent to form a non-diffusible magenta dye, one coupling compound being a colourless coupler, one being a yellow coloured 3-anilino 4-arylazo-5-pyrazolone coupler and the third being a development-inhibitor-releasing (DIR) coupler. The coupling compounds may be incorporated in the emulsion in the form of a dispersion of the solution in a water-insoluble coupler solvent (e.g. tricresyl phosphate). The DIR coupler preferably has a monothio group in its coupling position which, on coupling development, releases a diffusible mercaptan which inhibits development. Many colour couplers are specified. The DIR coupler added to the colourless coupler does not affect fogging, but the DIR coupler reduces fog caused by the coloured coupler.
Patent GB-110237-A (GB)
Title: Improvements in Explosives.
IPC: C06B23/04
Filed: 1916-11-27
Abstract: 110,237. Kynoch Arklow, Ltd., and Pirmez, L. H. Nov. 27, 1916. Explosives.-Consists in rendering blasting explosives safe by the addition thereto of one or more fluorides, such as fluor spar (calcium fluoride), and cryolite (ammonium sodium fluoride), in a finely divided state. One example contains nitroglycerine 11 per cent. ammonium nitrate 65 per cent, wood meal 5 per cent, and calcium fluoride 19 per cent.
Patent GB-1069001-A (GB)
Title: Shearer drum mineral mining machine
Inventor: ANDERSON FORREST SYMINGTON
IPC: E21C25/14
Filed: 1964-04-24
Abstract: 1,069,001. Mineral mining machines. ANDERSON MAVOR Ltd. May 28, 1965 [April 24, 1964], No. 16991/64. Heading E1F. A conveyer mounted machine has projecting from a side a shearer drum and a cowl for deflecting cut mineral onto the conveyor, the drum and cowl being mounted on the body of the machine for vertical pivotal adjustment by means of a parallelogram linkage which maintains the cowl and drum in a fixed position relative to each other during adjustment. The cowl may be moved through 180‹ either manually or by power according to the direction of advance of the machine.
Patent GB-749634-A (GB)
Title: Improvements in or relating to apparatus for use in processes for coating tubes internally with a layer of finely divided solid material
IPC: B05C7/02
Filed: 1953-06-19
Abstract: A suspension of a finely divided solid material in a liquid such as a suspension of a powdered enamel or luminescent material, to be applied to the inner surface of a tube, such as the glass envelope of an electric lamp, is contained in a reservoir 1, Fig. 1, substantially in the form of the lower half of a sphere, and is agitated, to prevent settling out, by a rotatable impeller having a plurality of horizontally extending vanes 16 supported by a vertical <PICT:0749634/III/1> <PICT:0749634/III/2> shaft 14 near the bottom of the reservoir, an annular plate 18 being supported immediately above the vanes 16 coaxially with the shaft 14, whereby a downward flow through the plate 18 and a lateral disperion of the suspension is created.  The lower edges of the vanes 16 may be curved so as to provide a constant clearance between the vanes and the bottom of the reservoir.  The inner surface of the lower part of the reservoir may be curved upwards towards the vertical axis, as indicated at 36, Fig. 3. The reservoir 1 has a lid 4 through which a number of stainless steel tubes 9 are hermetically sealed extending downwardly into the reservoir and projecting upwardly to receive rubber bungs 21, Fig. 3. These rubber bungs have conical openings 22 which communicate with the tubes 9 and are adapted to communicate, liquid-tight, with glass tubes 25 detachably mounted in clips (not shown) supported by a frame 27.  By means of a pipe line 34 and valve 35 the reservoir 1 is connected to an air compressor so that the suspension is forced up the tubes 9 and into the glass tubes 25.  When the suspension reaches the top of the tubes 25 the valve 35 is operated to open the reservoir to the atmosphere and the suspension falls leaving a coating on the inside walls of the tubes 25.  The valve 35 is continually adjusted to give a substantially uniform rate of fall of suspension in order to obtain a uniform coating.  A movable drip tray 37 is supported by the bungs 21.  A water jacket 39 may be provided for temperature control.
Patent GB-354449-A (GB)
Title: Improvements relating to sliver cans for textile fibres
IPC: B65H75/16
Filed: 1930-06-04
Abstract: 354,449. Sliver cans. SUTCLIFFE, J. A., 54, Deansgate, Manchester, and THOMPSON, A. A., 60, Leamington Road, Blackpool. June 4, 1930, No. 17120. [Class 66.] The sheet-metal spring bottom 4 of a sliver can is strengthened by having the lower' edge of the wall 6 spun into a recess 8 formed in the inner face'of a solid metal protective ring 5. Specification 12888/89, [Class 120, Spinning], is referred to.
Patent GB-515836-A (GB)
Title: Improvements in or relating to fastenings for the doors of baling or like presses
IPC: B30B9/30
Filed: 1938-06-09
Abstract: 515,836. Door fastenings. MILLS & SON, Ltd.; E., and BLEASDALE, F. June 9, 1938, No. 17123. [Class 44] The door A of a baling press of the kind described in Specification 515,835, [Group XVII], is fastened by means of a C-shaped member C pivoted to one of the press uprights B and carrying at its free end a pivoted lever D the longer arm of which forms an operating handle whilst the shorter arm d' is notched for engagement with he central web of a T-iron a' disposed on the free edge of the door. A modification is described applied to a pair of doors meeting at right angles, in which the member C is pivoted on one door and the shorter arm of the lever, disposed at an angle to the longer arm, has a nose engaging a recess in the web of one of the strengthening ribs, such as a<2>, on the other door.
Patent GB-834243-A (GB)
Title: Non-blocking film and process for manufacturing the same
IPC: B29C48/91
Filed: 1956-06-04
Abstract: Transparent non-blocking films having microscopic protuberances on both surfaces are prepared by casting a film-forming solution having microscopic particles of a chemically inert inorganic substance dispersed therein on to a film-casting surface having microscopic pits therein, as prepared by the method of Specification 737,032. "Blocking" is defined as the adhesion of one film surface to another due either to an electrostatic charge on the surfaces, to the condition of the surfaces, to the surfaces being pressed together or to their having been rendered slightly tacky by heating.  After the cast film has been dried it has microscopic protuberances on the surface which was not in contact with the casting base because, when the film dries, it shrinks about the particles at the surface and leaves them partly protruding above the general level of the surface. The film-forming material may be a polyethylene, a polyvinyl chloride, a cellulose ester such as a nitrate or acetate, rubber hydrochloride or a chlorinated rubber.  The particulate inorganic substance may be silica aerogel, diatomaceous silica, bentonite, calcium carbonate, talc, soapstone, titanium pigments, mica, magnesium or calcium silicate or glass.  The inorganic powder is preferably added to the film-forming composition in the form of a dispersion in an organic solvent such as benzene, methyl ethyl ketone or toluene, or in a plasticizer such as dioctyl phthalate, dibutyl sebacate or dioctyl sebacate or in a mixture of a solvent and a plasticizer.  In an example, a mixture of 70 parts of a dispersion of 12.5 parts by weight of silica aerogel (of 1 to 10 microns radius particle size) in 100 parts of methyl ethyl ketone and 62.5 parts of toluene, and 840 parts of a solution of 100 parts of polyvinyl chloride in 500 parts of methyl ethyl ketone, 207 parts of toluene, 18 parts of dioctyl sebacate and 15 parts of dibutyl sebacate, is cast on to a polyvinyl alcohol casting surface having 100 to 2,000 pits (of radius 1 to 10 microns) per square centimetre, prepared by the method of Specification 737,032.
Patent GB-797682-A (GB)
Title: A mould for use in the manufacture of concrete pipes having spigot and socket joints
Inventor: HASSELBLAD ERIK DAVID VALTER
IPC: B28B21/18
Filed: 1955-06-15
Abstract: 797,682. Moulding concrete socketed pipes. AKTIEBOLAGET TRYCKRÍR. June 15, 1955, No. 17251/55. Class 87(2). A concrete pipe moulding device in which an expansible sleeve surrounds a rigid core in an expansible outer casing is adapted to mould the internal socket surface of the pipe by a second expansible sleeve of greater diameter and to mould the outer spigot surface by a rigid ring. The core 1 comprises a rubber sleeve 5 on a tube 4 anchored by fitting beadings 7 on the ends of the sleeve into grooves in rings 6 welded to the ends of the pipe. Water under pressure can be forced between the tube 4 and sleeve 5 through pipes 8, 9. An outer casing 2 comprises two (or more) stiffened parts joined by spring-loaded bolts through longitudinal flanges and having top and bottom flanges 13, 12. On the top flange 13 rests a ring 14 of two halves rigidly bolted together, with a gasket between the flange 13 and a flange 14a on the ring 14. To form a pipe socket a collar 17 fits over the ring 6, surrounded by a rubber sleeve 18 anchored by beadings 18a fitting in grooves in the collar 17. A flange 17b on the collar 17 is bevelled at 17c and round it fits a bevelled ring 22 which engages with the semi-circular flanges 12. Water under pressure can be forced between the collar 17 and the sleeve 18. The core 1 is centred by distance pieces 25 between the rings 6 and 23 and is supported from a bed plate 19. The tensioned longitudinal reinforcement rods 24 are anchored at their ends in slots in the rings 22, 23, with circumferential reinforcement 26 wound round them. Then the outer casing with the cage of reinforcement is placed over the core 1 and centred. The mould is filled with concrete, vibrated, and water is supplied under pressure through the pipes 8, 9, 21. The resulting expansion of the rubber sleeve tensions the circumferential reinforcement 26, the outer casing 2 expanding against the pressure of the spring- loaded bolts, the water pressure being maintained while the concrete sets. At its upper end the concrete is pressed against the rigid ring 14 and given a truly circular shape.
Patent GB-173244-A (GB)
Title: Improvements in fabric coverings for frozen meat, applicable for other purposes
IPC: D03D3/00
Filed: 1920-06-25
Abstract: 173,244. Crompton, J., and Bryers, G. June 25, 1920. Sacks and like bags, weaving; tubular fabrics; yarns specially twisted, fabrics with; non-metallic strips and the like, fabrics with; marking by wearing; ground weaves; specially-distributed yarns of different twists, fabrics with.-Bags or tubular fabrics of an elastic character for enclosing carcasses of frozen meat &c. are woven from hard-twisted yarns entirely, or from such yarns and other yarns of ordinarv twist. Alternate warp and weft threads, or all the warp threads, or all the weft threads may be of hard-twisted yarn. Alternate threads in the warp and weft may be of oppositely-twisted yarn. The bags may be woven with a stockinet weave, as indicated in Fig. 3; or they may be woven, as shown in Fig. 7, with dark warp threads predominating on the outside of the fabric, lighter threads, preferably white, predominating on the inside, which thus is of a different colour to the outside. The fabric may be woven as shown in Fig. 5 and entirely from hard-twisted yarn; or the threads 1, 4 may be of half-twisted yarn. Solid cloth may be woven to form the end of the bag by using the weave shown in Fig. 2 ; or a long length of the tubular fabric may be cut up and sewn to form the bag ends. Indelible woven identity marks or stripes may be formed down the centre or sides of the bag, either in a contrasting colour or a contrasting weave, such as a broad bar of plain cloth on the stockinget weave. These stripes or the finer solid cloth at or near the end of each bag serve as record labels or tags.
Patent GB-292133-A (GB)
Title: Process for obtaining sterols
IPC: C07J9/00
Filed: 1928-06-14
Abstract: 292,133. Soc. of Chemical Industry in Basle. June 14, 1927, [Convention date]. Sterols, particularly those present in fungi such as ergosterol, are obtained by heating the material, e.g. yeast, under pressure with an aqueous solution of an alkaline substance such as hydroxide or carbonate. As an example yeast is mixed with a strong hot solution of potassium hydroxide and then heated to 120‹ C. in an autoclave for several hours. The sterols separate largely on the surface of the. liquid and are skimmed, the skimmed material being extracted with ether and the extracts washed with water, dried with sodium sulphate and evaporated to crystallize out the sterol. The alkaline liquid resulting from the hydrolysis also contains a proportion of sterol which may be obtained therefrom by extracting with ether.
Patent GB-315548-A (GB)
Title: Improvements in or relating to mantelpieces
IPC: E04F19/00
Filed: 1928-06-15
Abstract: 315,548. Parker & Butler, Ltd., and Butler, T. V. June 15, 1928. Mantelpieces.-A mantelpiece has the frieze a and shelf b formed as a unit and separable from the jambs c, d. The upper ends of the jambs are rebated on their rear faces to receive the ends of the frieze, which is secured by horizontal screws h, and vertical screws i, passing into the shelf through lugs g on the jambs.
Patent GB-477283-A (GB)
Title: Process of producing chicken-active provitamin d preparations from a sterol mixture
IPC: A61K31/59
Filed: 1936-06-22
Abstract: A pro-vitamin D concentrate which has a very high antirachitic activity for chickens in comparison with irradiated ergosterol is prepared from a sterol mixture containing it by esterifying the sterol mixture with an acid which does not mask the relative absorption characteristics of the sterols to any substantial extent, subjecting the ester mixture so obtained to fractional adsorption, then further increasing the concentration of the pro-vitamin ester by fractional crystallization, and finally isolating the sterol by saponification.  The term "masking" indicates the modification of adsorption characteristics by esterification so that the relative adsorption characteristics of the sterol esters no longer resemble the relative adsorption characteristics of the parent sterol residues.  The use of acids which contain strongly polar linkages or marked polar groupings is excluded.  The preferred source of sterols for treatment according to the present invention is invertebrate animals such as salt water mussels, river mussels, periwinkles, mealworms, slugs, whelks, and earth worms.  It is preferred in most cases that the concentration of the pro-vitamin should be raised to 40--50 per cent by adsorption before the final fractional crystallization is attempted.  In the preparation of the sterol mixture from the raw material, the fact that the vitamin is oxygen sensitive has to be taken into account.  A suitable preparative treatment is as follows: the comminuted invertebrate is dried in vacuo at about 50 DEG  C., the fat is extracted by a hydrocarbon solvent, and the solid residue removed by filtration.  The fat is saponified at as low a temperature as possible and the unsaponifiable fraction extracted with ether and recrystallized from alcohol.  In an example of the treatment of the sterol mixture obtained as above, 7 grams of sterol acetate are dissolved in 105 ccs. of a 1 : 1-benzenepetroleum ether mixture, and the solution poured on to an adsorption column prepared according to the Brockmann method from 315 grams of alumina and having a diameter of 33 mms.  The column is washed with further benzene-petroleum ether and then eluted with benzene-methyl alcohol solution, after the removal of the top 2 cms. of material containing impurities.  The eluted fraction contained 2,51 grams, and was again subjected to an adsorption process.  The eluted fraction this time contained 0,78 gram and was subjected to a third adsorption process to yield 224 mgs. of acetate mixture containing about 57 per cent of pro-vitamin acetate.  This was recrystallized three times from methyl alcohol to give 49 mgs. of well crystallized sterol acetate of high activity.
Patent GB-1431093-A (GB)
Title: Gas discharge panel
IPC: H01J17/49
Filed: 1973-04-11
Abstract: 1431093 Gas discharge display panels FUJITSU Ltd 11 April 1973 [18 April 1972 (3)] 17357/73 Heading H1D The dielectric layer 14 covering the electrodes 6, 7, 8, 9 of a charge-storage type gas discharge display panel is covered or interrupted by suppression layers 17 which decrease the electric field penetrating the discharge space. The gaps between strip films 17 of Au, Pt or Ag form channels along which a surface discharge is stepped by connecting the electrodes 6, 7, 8, 9 to a 3-phase supply. In an alternative embodiment (Fig. 7, not shown) the strips 17 are made of resistive material, e.g. an oxide of Sn, Ti, In or TaN 2 , to decrease the load capacitance. In either of these embodiments the strips 17 may be covered with a further dielectric layer of Al 2 O 3 , SiO 2  or CeO 2  (Fig. 11, not shown). In a further alternative embodiment (Fig. 8, not shown) the strips 17 consist of dielectric material having a higher dielectric constant than the layer 14, e.g. the strips 17 may be of BaTiO 3  and the layer 14 of high lead content glass.
Patent GB-1472374-A (GB)
Title: Broad band directional coupler
IPC: H03H11/38
Filed: 1975-04-28
Abstract: 1472374 Directional couplers INTERNATIONAL BUSINESS MACHINES CORP 28 April 1975 [28 June 1974] 17469/75 Heading H4R In a directional coupler for feeding signals on to a transmission line so that they propagate in a required direction, an attenuator network formed of linear non-reactive elements is inserted into the line together with a pair of coupling circuits each of which couples a respective input terminal to a respective group of nodes of the attenuator network, the coupling between each input terminal and the groups of nodes being in such ratio that signals fed into the respective terminal are transmitted in a respective direction in the line with no transmission in the respective opposite direction as described the attenuator networks can be T, # H or ladder networks of resistive components. In Fig. 2A each coupling circuit comprises a pair of amplifiers of gains g 1  and g 2  coupling the input terminal R I  or L I  to the two sides of the attenuator network. In a simplified arrangement, Fig. 2B (not shown) a push-pull amplifier is used to feed signals direct to one side of the attenuator network and to a tapping on the shunt resistor at the other side of the network to provide the appropriate coupling ratio. Embodiments using ladder, T, and H networks are described with reference to Figs. 2C, 4A and 4B (not shown). Transformers may be used to couple the amplifiers to the coupling points in the network.
Patent GB-849326-A (GB)
Title: Pipe line plugger
IPC: F16L55/105
Filed: 1959-05-22
Abstract: 849,326. Pipe stoppers. WILLIAMSON Inc., T. D. May 22, 1959 [March 16, 1959], No. 17513/59. Class 99(1). In a pipe-plugging device comprising a fluidtight housing 10 mounted on a pipe 11 in surrounding relation to an opening 12 therethrough, a carrier 21 mounted on the housing 10 for movement therein toward and away from the pipe 11 and a plug 26 for insertion into the opening 12 so as to form a seal across the pipe to one side of the opening, one or a pair of arms 24 is swingably connected to the carrier 21 and fixedly secured to the plug 26 to support the latter in one position of the carrier and means are provided for locating the plug 26, as the carrier is moved from its one position toward the pipe 11 and the innermost portion of the plug engages the inside of the pipe opposite the opening 12, which portion is laterally offset from the swinging connection of the arm 24 to the carrier 21 in a direction towards one side of the opening 21 so that upon continued movement of the carrier towards the pipe the arm 24 is swung to move the plug 26 laterally into sealing engagement across the pipe. As shown, the carrier 21 comprises a flange 22 connected to a circular head 23 and to which are pivotally secured the arms 24. Alternatively, a single arm is mounted on spaced apart flanges. The head 23 is secured to rods 36 connected to a piston 35 of a hydraulic actuator 33 mounted on the housing 10. The plug 26 comprises a sealing cup 30 having a peripheral lip and held between plates 30a, 30b, the plate 30b being secured to the arms 24 and resting against an edge 27 on the carrier flange 22 when the plug is supported within the housing and the plate 30a having secured thereto brackets 29, 32 on which are rotatably mounted rollers 28, 31, offset from the pivotal axis of the arms 24 so as to engage the inside surface of the pipe 11 and cause swinging of the arms 24 as the carrier is moved towards the pipe.
Patent GB-422682-A (GB)
Title: Improvements in or relating to service hatches for domestic and other purposes
IPC: E04F19/08
Filed: 1934-06-13
Abstract: 422,682. Service hatches. JORDAN, F., 35, Chestnut Road, Northampton. June 13, 1934, No. 17532. [Class 20 (iii)] One or more doors on one side of a service hatch are locked automati - cally on closing by a pivoted latch 6, and catch 9<a>, the latch being released by the opening and closing of the opposite door 5 by a stud 11 on the pivoted links 10, and a flanged pivoted trip 7 having a projection 7b, which raises the latch as the door closes. The door 3 is hinged at the upper edge and on opening releases the trip 7 by withdrawing the link and stud 11 allowing the catch 6 to fall into operative position. Limiting stops 12, 21, may be provided for the catch. A fastening 13 and a handle 16 may be provided on the doors. The catch may be controlled by a spring. The invention may be applied to sliding or hinged doors.