baber/WOPTO huggingface dataset:
Patent GB-1223616-A (GB)
Title: Improvements in or relating to the production of concrete elements
Inventor: KUSEL HERMANN JURGEN
IPC: B28B13/02
Filed: 1968-04-11
Abstract: 1,223,616. Concrete paving stones. H. J. KUSEL, K. SCHNEIDER, and W. SCHNEIDER. 11 April, 1968 [11 April, 1967; 24 Feb., 1968], No. 17628/68. Heading B5A. Compound concrete paving stones are produced by filling the individual chambers of a mould simultaneously, compressing the concrete and removing excess. As shown in Fig. 1, the apparatus comprises a mould 18 divided into individual chambers 17 by walls 16, material being supplied from a hopper 10 by means of a conveyer 14. The hopper 10 may have a predose section separated by baffle-plates 24 from the main hopper section, the pre-dose section being divided into individual chambers 20, which correspond to those of the mould and are closable by members 22. The conveyer 14 may also comprise a plurality of chambers 38 closable by members 40. Compressing rams 50 are co-ordinated with hopper operation by a photo-electric device 56 triggered by members 54, 58. The mould may comprise a frame and parallel walls 114, Fig, 7, and parallel walls 116 perpendicular thereto but which extend only partially into the mould. Walls 120a-120d are continuations of walls 116 into the cavity and are withdrawable by means of guiding surfaces 117a-117d and guide slits (118) in walls 114. Stamping plates 130 on rams 134 engage in the mould chambers and have one or more apertures 132a, 132b through which excess material can pass. The hopper may be vibrated during measuring and the mould during casting.
Patent GB-842976-A (GB)
Title: Improvements in colour television reproducing apparatus
IPC: H04N9/24
Filed: 1956-06-07
Abstract: 842,976. Television. SYLVANIA ELECTRIC PRODUCTS Inc. June 7, 1956 [June 20, 1955], No. 17667/56. Class 40(3). In a colour television receiver in which the phase of the chrominance portion of the signal applied to a modualting electrode of the picture reproducing tube is controlled by indexing signals desired from the scanning of indexing strips in the tube screen, an equal and opposite phase control is effected by means of a control voltage derived from the electromagnetic scanning means of the tube. The invention is described in connection with a receiver for an N.T.S.C. type of signal and utilizes a two-gun tube one gun, 109, being employed for the picture signals and the other, 108, supplied with a pilot frequency oscillation (fp) of about 40 mcls (from 16) to produce, by the secondary emission effect of the indexing strips in the tube screen 9, an indexing signal consisting of the frequency (fp) and side-bands of frequency (fx) determined by the number of and the rate of scanning of the index strips. The upper side band (fp+fx) is selected by means of an amplifier 19 and fed to a mixer 122 to which is also fed a signal (fpc) consisting of the pilot frequency (fp) modulated by the chrominance sub-carrier information C. The signal fhc is produced by combining, in a mixer 121, the chrominance sub-carrier (fsc), derived via filter 120, with a signal fh-fs, derived from a further mixer 119 to which is supplied the pilot frequency (fp) together with the reference subcarrier (fs), generated in conventional manner under the control of the received "burst" signals, and supplied via a phase shifter 21. In accordance with the invention the phase shift produced by the latter is controlled by a voltage derived via a coil 6 linked with the scanning yoke 5 and such shift is arranged to produce an equal and opposite effect to the phase shift produced in the indexing signal by variations in the scanning velocity. In order to compensate for pin cushion distortion and the variation in transit time of the secondary electrons (which produce the indexing signal) due to the physical construction of the two gun tube, the voltage induced in coil 6 is modified by combining it with voltages from the beam deflection circuits 124, 125, in a shaping circuit 126.
Patent GB-758344-A (GB)
Title: Improvements in and relating to the control of electrically operated winding or like mechanisms
Inventor: WOODLIFF GEOFFREY EDMUND
IPC: H02P1/36
Filed: 1952-07-14
Abstract: 758,344. Control of A.C. motors; controllers. BRITISH THOMSON-HOUSTON CO., Ltd. July 16, 1953 [July 14, 1952], No. 17717/52. Class 38(3) An induction motor A has a hydraulic servo device D introduced between the driver's control lever H and liquid rotor resistance F, the stator winding of the motor being supplied with regulated direct-current for braking. When the braking-current exceeds a pre-determined value corresponding with the optimum value of rotor resistance for the prevailing speed, a relay C responds to open contactor G. A motor driving a pump which circulates oil in the servo device D is thus de-energized, so preventing further reduction of the rotor resistance. A powermeasuring device (not shown) is connected across a shunt B in the braking circuit, and this device controls the supply of current to the coil of the relay C.
Patent GB-1315930-A (GB)
Title: Pressure vessel of the removable-heat type
IPC: G21C13/093
Filed: 1972-04-17
Abstract: 1315930 Reactor pressure vessels COMMISSARIAT A L'ENERGIE ATOMIQUE and ELECTRICITE DE FRANCE 17 April 1972 [21 April 1971] 17719/72 Heading G6C In a boiling water reactor, the prestressed concrete pressure vessel has a concrete lid, the annular space between the vessel and lid being provided with a water seal. The lid 12, of the vessel, 10, rests upon the elastomer seal 32, at the corbel, 18. The annular space, 48, between the lid skirt, 42, and the collar, 44, and the trough, 46, fills with water, condensed from steam by the cooling tubes 22 and 36. The water is retained by the pressure inside chamber 14, and exerted on the free surfaces in the trough. The bell casing 26 is separated from the leaktight membrane, 20, by the stainless steel mesh insulating material, 24. In an alternative form, the leak-tight membrane is " hot " and the belt casing is omitted.
Patent GB-1473384-A (GB)
Title: Bearing and method for manufacturing same
IPC: F16D69/02
Filed: 1974-04-23
Abstract: 1473384 Jointing by forging; drawing CENTRE STEPHANOIS DE RECHERCHES MECANIQUES HYDROMECANIQUE & FROTTEMENT 23 April 1974 [25 April 1973 16 April 1974] 17744/74 Headings B3H and B3P [Also in Division F2] A bearing element is made by winding metallic wire or strip 2 around a mandrel 106 into a helical configuration, separating the winding from the mandrel and fixing the winding to a support part 1 so that the winding forms a bearing surface and, along substantially the length of the wire or strip, the support is in contact with the wire or strip. The winding may be either inside or outside a cylindrical support part, and the size of the mandrel used for winding may be such that the winding is held in/on the support by its natural resilience. The winding may also have grooves or corrugations in the surface engaging the support and the support may be deformed with the winding in place, e.g. by drawing through a die 113, to enhance the connection with the winding. During winding, the wire or strip may be reduced in cross-section by cold drawing between two knives 25, 26, one of which is carried on a pivotable arm 27 which is loaded by a jack 29 and whose position is determined by a screwstop 31. The wire or strip may then be notched by a knurled wheel 103 prior to winding round the mandrel 103.
Patent GB-1292926-A (GB)
Title: Improvements in piston and connecting-rod assemblies particularly for a hydraulic pump or motor
IPC: F04B53/14
Filed: 1970-04-14
Abstract: 1292926 Pistons; connecting rods REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 14 April 1970 [21 April 1969] 17828/70 Heading F2T The piston 8 of a piston and connecting rod assembly has a cylindrical chamber 9 inclined at an angle 13 greater than the angle 14 of operation for receiving the end of the connecting rod, the chamber having a spherical retaining surface 12 whose radius R2 is greater than the radius R1 of a spherical bearing surface at the bottom of the chamber, the centres of radius O being coincident. The arrangement allows the connecting rod to be inserted into the piston along the axis X and to be retained by the surface 12 when the rod is brought into its operative position. The piston has a lubricating bore 15 and is suitable for hydraulic pumps or motors. Alternatively, the piston could be sintered and impregnated with lubricant for use with hot-gas motors.
Patent GB-352202-A (GB)
Title: Improvements in and relating to the rust-proofing of iron, steel and other metals
IPC: C23C10/34
Filed: 1930-06-10
Abstract: A protective metallic coating is formed on metallic articles, particularly iron or steel articles, by heating them in contact with a powdered mixture consisting of black copper oxide, aluminium, chromium oxide, and a very hard abrasive substance, e.g. emery or carborundum.  Powdered zinc, preferably obtained by distillation, may be added to the mixture, and borax, salammoniac, or naphthalene, alone or in combination, may be used as a flux. The heat treatment is preferably carried out in three stages, for about 30 minutes at about 600 DEG  C., for from 20 to 30 minutes at about 500 DEG  C., and for 30 minutes or longer, according to the thickness of coating required, at about 350 DEG  C.  The process is carried out in a hermetically closed, externally heated, rotating cylindrical container. Specification 292,666, [Class 82 (ii), Washing granular &c.], is referred to.
Patent GB-288068-A (GB)
Title: Improvements in and relating to electric devices for securing uniformity in slivers or the like in preparing or spinning machinery
IPC: D01H5/42
Filed: 1927-07-05
Abstract: 288,068. Heintze, G. July 5, 1927. Alarms.-In an electric device for securing uniformity in slivers and the like in preparing or spinning machinery two abutments F<1>, F<2> are arranged in the path traversed by the sliver, and a ring G surrounds the sliver, and is of the requisite size to be carried upwards against the abutment F<2> by a sliver of normal size. The ring G and abutment F<1> are in an electric circuit including an audible or visual alarm device. When the sliver fails or becomes thin, the ring G drops on to the abutment F<1> and operates the alarm. The abutments may be arranged horizontally and the ring G drawn back by a weight or spring.
Patent GB-859021-A (GB)
Title: Improvements in or relating to blades for use in the treatment of barley or like grain, in maltings and like places
IPC: C12C1/15
Filed: 1958-06-05
Abstract: 859,021. Malt turners. EVANS, H. O. June 4, 1959 [June 5, 1958], No. 17944/58. Class 86 [Also in Group XXX] A plough for handling malt on a malting floor comprises a main blade 10, a handle 12, a floor engaging member 13 which spaces the blade from the floor, and an auxiliary blade 11, so that the malt can either be uniformly spread over the floor when the plough is moved by a propulsion unit (not shown) with its blade 10 in an upright position, Fig. 1, or swept along the floor by means of the auxiliary blade 11 which engages the floor when the blade 10 is tilted rearwardly. As shown, Fig. 1, the floor engaging members 13, 13, adjustably connected to the blade 10 by means of wingnuts 14, are provided with handles 12 at their uppermost ends. The plough is hauled by the rope 17 of a winch or like propulsion unit and can be controlled by switches situated on the handles 12 and connected to an electric cable integral with the rope 17. Pulley blocks spaced across the width of the malting floor can be used so that the winch can haul the plough over adjacent parts of the floor.
Patent GB-766695-A (GB)
Title: Reservoir adapted for use in a stylograpic pen
IPC: B43K1/08
Filed: 1954-06-21
Abstract: 766,695. Reservoir pens. CIEREMANS, M. June 21, 1954 [Jan. 5, 1954], No. 18201/54. Class 146(3). In the reservoir 3 of a stylographic pen a sealing member 5 rests on the end of the ink column and remains in contact therewith as the ink is consumed, and a sealing liquid 6, such as paraffin or other light mineral oil, is disposed in the annular capillary space between the single smooth wall of the member 5 and the inner wall of the reservoir so that air cannot pass into the ink 4, the liquid 6 being insoluble in the ink, almost non-volatile, non-drying in the presence of air, and capable of wetting the walls of the reservoir and sealing member more readily than does the ink, whereby the sealing liquid penetrates into the annular capillary space and drives the ink away from this space. The specific gravity of the sealing liquid 6 is not greater than that of the ink, and is so selected in relation to that of the sealing member 5 that the latter will not rise in the sealing liquid which might be present above the sealing member. As shown, an excess of sealing liquid 6 is provided, and the length of the air tube 9 in the closure cap 7 of the reservoir prevents the excess liquid escaping when the reservoir is inverted. Specification. 547,796 [Group III] is referred to.
Patent GB-547599-A (GB)
Title: Improvements in or relating to sheets to make blank printed or written envelopes andthe like
IPC: B65D27/10
Filed: 1940-12-31
Abstract: 547,599. Envelopes; manifolding arrangements; paper bags; wallets. BONNAIRE, C. Dec. 31, 1940, No. 18233. [Classes 16 and 146 (ii)] [Also in Group XVII] A series of envelopes without lateral flaps comprises a paper web folded to form long and short elements h, i, Fig. 1, connected together in pairs by adhesive means along one or both edges, the projecting parts e of the long elements h forming closure flaps. Two or more envelopes may be formed side-by-side with a central line j of weakening in the adhesive strip d. The envelopes are completed by uniting the lateral adhesive strips b, c of adjacent pairs of elements h, i, and the closure flaps e may be gummed. Self adhesive spots or strips may be used, and crimping may be used to strengthen the connection. The fold lines f, f may be weakened by perforations, &c Intermediate adhesive strips k, Fig. 6, may be provided on the same or opposite side as the strips b, in the former case to enable smaller envelopes to be formed for re-use and in the latter case to form reversible envelopes. The envelopes may have detachable tags l, Fig. 4, for receipt or other purposes, lines of perforations m being formed within the gummed strips, so that the envelopes are opened on removal of the tags. Carbon spots or strips may be provided for manifolding or one or more cover sheets o, Fig. 3, may be secured to a gummed strip n at the top of the series. The sheet may project beyond the envelopes and be provided with guide marks to indicate the exposed areas of the envelopes, or one edge s may be offset to expose parts of the envelopes. A carbon paper may be secured between sheet o and the envelopes. Perforations may be provided only at alternate folds f so as to form wallets with double side pockets, alternate flaps e being used as detachable vouchers. The folds may be made at progressively increased distances apart to form envelopes of increasing size and the base or flaps of each envelope may have an introverted fold for bulky articles. Only one edge need be stuck down during manufacture, leaving the other edge open as a final closure. The corners of the flaps may be cut away as at q to form a tuckin flap.
Patent GB-713662-A (GB)
Title: Improvements in or relating to the sealing of packages wrapped in heat-sealable material
IPC: B29C65/00
Filed: 1951-08-01
Abstract: 713,662. Packaging. DOUGLAS & CO., Ltd., C. E., and FLORY, H. E. Aug. 1, 1951, No. 18252/51. Class 94 (1) [Also in Group VIII] Packages wrapped in heat-sealable material are sealed by directing one or more jets or streams of hot air or gas on to the overlapping sheets of material with sufficient force and at a sufficiently high temperature as to cause the overlapping sheets to be held in contact with one another and raised to the melting or fusing temperature of the material. As shown, air or gas under pressure enters a heating chamber 3 and thence passes at the desired temperature into a conduit 5 from which it is emitted through a line of jets 6 or a narrow slit to impinge upon the sealing line 7 of a wrapper 9 with sufficient force to hold the wrapper layers together while heatsealing takes place. For sealing side seams a single jet or line of jets may be passed manually or mechanically along the seam, or the package may be passed in front of a fixed jet or jets; for end sealing, a "cluster" of jets may be used. Clusters or single jets may be attached to the end of a flexible pipe connected to fixed pressure and heating mechanism. When applied to an automatic wrapping machine, the timing and duration of the hot blast may be synchronized with the operation of the machine by means of a valve situated at the place of air or gas intake into the heating chamber.
Patent GB-996498-A (GB)
Title: Fluorination of perhalocompounds
Inventor: FULLER GEORGE
IPC: C09K5/00
Filed: 1962-05-11
Abstract: The invention comprises 1,3-dichlorotetra-fluorobenzene (a), 1,3-dibromotetrafluorobenzene (b) and 1-chloro-2,3,4,6-tetrafluorobenzene (c) and a method of preparing fluorinated aromatic compounds which includes the step of heating an aromatic compound, the nucleus of which is fully and exclusively halogen-substituted (at least one halogen being other than F), in a polar aprotic solvent with a dry fluoride of an alkali metal other than Li.  Specified solvents are tetramethylene sulphone, dimethyl sulphone, dimethyl sulphoxide and dimethylformamide. Hexachlorobenzene (or partially fluorinated hexachlorobenzene) gives various chlorofluorobenzenes including (a) and chloropentafluorobenzene (d); hydrogenation (Pd) of (a) gives (c) and 1,2,3,5-tetrafluorobenzene which on bromination gives (b). Reaction of (d) with the following agents gives the products indicated in parentheses: copper bronze (decafluorodiphenyl), alkali metal methoxide (methoxychlorotetrafluorobenzenes), alkali metal hydrogen sulphide (chlorotetrafluorothiophenols), ammonium hydroxide (chlorotetrafluoroanilines), hydrazine hydrate (chlorotetrafluorophenylhydrazines) and H2-Pd (pentafluorobenzene). Ullmann reaction of (b) with bromopentafluorobenzene (e) gives m-perfluoroterphenyl; (e) is obtained together with its dibromotetrafluoro and tribromotrifluoro analogues from hexabromobenzene. Octafluoronaphthalene, obtained from octachloronaphthalene, may be re-submitted to the method of the invention to attain higher priority.
Patent GB-1372339-A (GB)
Title: Sewing machines
IPC: D05B61/00
Filed: 1973-04-17
Abstract: 1372339 Sewing UNION SPECIAL MACHINE CO 17 April 1973 [18 April 1972] 18338/73 Heading D1G In a multiple needle sewing machine the needles' points are at different heights (Fig. 1) to permit a cover thread TC to pass in front of some needles and behind the last one when a spreader 64 pushes the cover thread to the left (in Figs. 1, 14). The cover thread passes down through an eyelet 98 in a bracket 100 attached to the needle carrier 16, then through a slot 104 in a bracket 102 fixed just above the spreader 64. When the needles are down (Fig. 15) the cover thread passes through one end of the slot 104 and is held in the path of the advancing spreader; when the needles and bracket 100 are raised the cover thread flips to the other end of the slot so that the end needle N3 on its downward stroke may pass in front of it. A looper 22 is driven from the main drive shaft 15 through cranks. The needles are all clamped in a needle holder 16 (Fig. 5, not shown) driven by a rocking arm 18 to slide linearly along a straight guide 17. In the take-up mechanism (Figs. 3, 16), a rod 120 oscillated at appropriate times by a rocking shaft 19 pulls the needle-threads and the cover-thread simultaneously by moving back and forward into the U shaped gap between thread supporting arms 130, 132.
Patent GB-171134-A (GB)
Title: Improvements in stropping apparatus for the blades of safety razors
IPC: B24D15/08
Filed: 1920-07-03
Abstract: 171,134. O'Connor, H. July 3, 1920. Stropping-apparatus.-A stropping-apparatus for the blades of safety razors comprises a bladeholder c adapted to slide'in a cage or frame a, a<1> between the parts of a double drop o, the cage carrying two pairs of guide rollers m which co-operate with the strop to strop both sides of a single or double-edged blade. The cage comprises two sections a, a<1> connected together by guide pegs n, which may be provided with screwed ends and nuts f, and spring or elastic washers y to give elasticity between the sections, or spring clips embracing the two sections may be used for this purpose. The blade is held between the two parts of the hinged or folding holder c which is positioned in the cage by a stop s and is carried from one pair of rollers m to the other as the cage is reciprocated along the strop, the motion of the blade-holder in the cage being limited by the pegs n or other stop provision. The holder may be modified to take two single-edged blades or one pair of rollers only may be used for stropping a single-edged blade.
Patent GB-983236-A (GB)
Title: Polyfunctional epoxy resins
Inventor: ENGEL ERICH PETER
IPC: C08G59/02
Filed: 1961-05-23
Abstract: The invention comprises a polyglycidyl ether of 4,4-bis(41-hydroxyphenyl) pentanoic acid trimethylol ethane ester or a polyglycidyl ether of the 4,4-bis(41-hydroxyphenyl)pentanoic acid diester of the diglycidyl ether of 4,41-isopropylene diphenol. Polyglycidyl ethers, generally, may be made by reacting 4,4-bis (41-hydroxyphenyl) pentanoic acid or an ester thereof with an excess of epichlorohydrin in an alkaline medium.  In examples: (1) to (3) the said acid is heated with at least 3 mols. of epichlorohydrin in the presence of alkali to give the diglycidyl ether monoglycidyl ester of 4,4-bis(41-hydroxyphenyl) pentanoic acid; (4) the said acid is esterified with trimethylolethane and heated with epichlorohydrin in caustic soda to form the polyglycidyl ether of 4,4-bis(41-hydroxyphenyl) pentanoic acid trimethylolethane ester. Similarly, di- or poly-glycidyl ethers may be formed by reacting the said acid with monohydric alcohols such as n-butyl alcohol, n-octyl alcohol and dodecyl alcohol, or polyhydric alcohols, such as ethylene glycol, triethylene glycol, trimethylol propane and polyethylene oxides, adducts of propylene oxide and trimethylol propane or glycerine, or hydroxyl-containing vegetable oils, such as castor oil, followed by heating with epichlorohydrin in the presence of alkali. In Example (5) the said acid is esterified with bisphenol A glycidyl ether and the product is heated with epichlorohydrin in the presence of aqueous caustic soda to form a polyglycidyl ether of the 4,4-bis(41-hydroxyphenyl) pentanoic acid diester of the diglycidyl ether of 4,41-isopropylene diphenol.  The polyglycidyl ethers of 4,4-bis(41-hydroxyphenyl) pentanoic acid may also be reacted with bisphenol and modified with a long-chain fatty acid such as soyabean oil acid.ALSO:A polyglycidyl ether is made by reacting bisphenolic acid or an ester thereof with an excess of epichlorohydrin in an alkaline medium.  In an example, a diglycidyl ether monoglycidyl ester of 4,4-bis(4-hydroxyphenyl) pentanoic acid (bisphenolic acid) is prepared and then cured with maleic anhydride and pyromellitic dianhydride. The same triglycidyl product is reacted with bisphenol and the product modified with a long-chain fatty acid such as soya-bean oil acid to form an air drying product.