baber/WOPTO huggingface dataset:
Patent GB-111141-A (GB)
Title: Improvements in Tanning.
Inventor: JOHNSON JAMES YATE
IPC: C14C3/08
Filed: 1916-11-11
Abstract: 111,141. Johnson, J. T., (Badintu Aniline Soda Fabrik). Nov. 11, 1916. Sulphonic acids are obtained by treating with concentrated or fuming sulphuric acid or chlorsulphonic acid in nitrobenzene the following compounds :-4 : 4' - dioxydiphenylmethane, 4 : 4<1> - dioxy - 3 : 3<1>-dimethyldiphenylmethane, 6 6<1> - dioxy - 3 : 3<1> - dimethyldiphenylmethane (from phomosaligeuin and p-cresol), 4: 4<1> - dioxydiphenyldimethylmethane, 4: 4<1> - dioxy - 3 : 3<1> - d i m e thyldiphenyldimethylmethane, a - dinaphthylmethane, 4: 4<1> - dioxybenzophenone, the condensation products of acetone with m- or p-cresol or alpha-naphthol, the condensation product of pcresoldialcohol with p-cresol; a sulphonic acid is also obtained by treating 4 : 4<1> - dioxy - 3 : 3<1> - dimethyldiphenylmethane with formaldehyde and sodium sulphite. The products are crystalline water-soluble compounds which precipitate glue or gelatine from their solutions, and are used as tanning-agents. The Provisional Specification also describes a condensation product from formaldehyde and 2 - naphthol - 6 - sulphonic acid. Reference has been directed by the Comptroller to Specifications 22546/94 and 287/08, [Class 76, I.eather], 8512/12, and 8818/14.
Patent GB-945538-A (GB)
Title: A method for preparing ascorbic acid or its related compounds
IPC: C07D307/62
Filed: 1962-04-27
Abstract: L-Ascorbic acid, D-araboascorbic acid, and salts thereof, are prepared by esterifying a 2-keto-hexonic acid in the presence of a cation exchange resin, and enolizing and lactonizing the ester obtained. The 2-keto-hexonic acid may be 2-keto-gluconic acid or 2-keto-gulonic acid, and the acid may be esterified with methanol, ethanol, propanol or butanol. The enolization and lactonization may be carried out by heating in a neutral solvent, in the presence of a metal powder, sodium alcoholate, salt of a weak acid, or in an acidic solvent.  Examples are given.
Patent GB-403404-A (GB)
Title: Improvements in or relating to apparatus for the electric heat treatment of metals
IPC: C21D9/62
Filed: 1932-06-09
Abstract: 403,404. Heating metals by electricity. BURNAND, W. E., Limbrook, Dore Road, Dore, near Sheffield. June 9, 1932, No. 16262. [Class 39 (iii).] In apparatus for treating metal A in strip or like form by passage of current therethrough, the contact at the outgoing end comprises a mercury bath h covered by water or other liquid i to cool the heated metal before it enters the mercury and reduce adhesion of the mercury thereto. The mercury bath may be arranged in a tank J containing a cooling liquid. A chamber E provided with seals D and F encloses the part of the strip subjected to the heated current. The rollers l, m, n at the final end may be interconnected and their speed may be controlled by a thermo couple K acting through a relay system.
Patent GB-1537289-A (GB)
Title: Spacer
IPC: E06B3/54
Filed: 1976-04-22
Abstract: 1537289 Spacer R C LAMB 22 April 1976 [29 April 1975] 16367/76 Heading E1R A spacer unit 70 for glazing comprises a plurality of blocks 71, which may be cylindrical, right prismatic, spool shaped or spherical, skeletally interconnected in spaced relationship by web members 72. The basic unit may be of plastics material and comprise 2 rows each of 5 cylinders 1.5 mm. diam., 4 mm. high and at 4 mm. centres, the webs being 1.5 mm deep and 0.5 mm. wide. A dispenser (Figs. 1-4 not shown) akin to a staple gun is described which delivers one unit at a time from a continuous strip of connected units (Fig. 11 not shown). The method of use may be as follows, a window frame 56 has a strip of elastomeric sealant 62 applied to the vertical member 58, spacers 70 are discharged into the sealant by means of the dispenser gun e.g. at 250 mm. spacings, blocks 64 are positioned and the pane 63 inserted and retained by the glazing strip 66 with sealant 68 including further spacers.
Patent GB-572552-A (GB)
Title: An improvement in or relating to spanners or wrenches for gripping members of circular section
IPC: B25B13/50
Filed: 1944-10-09
Abstract: 572,552. Wrenches. TYAS, I. Oct. 9, 1944, No. 16421/43. [Class 61 (iii)] In a wrench for gripping members of circular section, of the kind comprising a block or body a, a cavity a<2> in the body, the wall of which is formed as a series of cams a<3>, and a cage b mounted within the cavity and supporting a series of rollers c which are forced by the cams into gripping engagement with the member d when the body a is rotated, the cams are so shaped that a grip is afforded in either direction of movement of the rollers, and the cage is secured to a sleeve e which surrounds the body and is rotatable on it. In use, the sleeve is held stationary by the hand while the body is rotated, in order to secure an initial grip of the rollers on the member. For gripping inaccessible members, the cage may be secured to a spindle extending through the hollow handle of the body. Specification 17936/07, [Class 61], is referred to.
Patent GB-234312-A (GB)
Title: Improvements in gas cookers and ovens
IPC: F24C3/08
Filed: 1924-07-09
Abstract: 234,312. Helps, G. July 9, 1924. Gas cooking-stoves; air supply for combustion.- A gas oven, open only at the bottom, is provided with burners a arranged sufficiently far beneath the back, front or sides, for the combustion product to pass out between them and the lower edge of the oven without interfering with the flames. In the case where the bottom is also closed, the burners project into the oven through openings sufficiently large to allow the combustion products to pass out of them around the burners. Specifications 1903/79 and 20833/96 are referred to. According to the Provisional Specification, air supply orifices may be formed in the flange of a burner of the type described in Specification 208,191.
Patent GB-1281964-A (GB)
Title: Apparatus for transversely welding tubular plastics strip material filled with fluidic material, to form individual sachets
Inventor: CAVANNA MARIO
IPC: B29C65/74
Filed: 1970-04-08
Abstract: 1281964 Making sachets from filled tubular material M CAVANNA 8 April 1970 [27 May 1969] 16561/70 Heading B8C [Also in Division B5] Apparatus for transversely welding tubular plastics strip material filled with fluidic material to form individual sachets, comprises means for supporting the strip material for movement through the apparatus, a carriage 1 or 2 reciprocal in a direction parallel to the path of movement of the strip material, the carriage comprising a frame extending transversely to and extending around the path, upper and lower jaws 9, 10 carried by the frame and arranged on opposite sides of the path, the jaws being cooperable to form a transverse weld across the strip material, means for moving the jaws substantially vertically relatively towards and away from the path and means for heating one of the jaws. As shown, a pair of adjustably interconnected carriages 1, 2 movable on guides 3 support pairs of jaws 9, 10 arranged respectively above and below packages 19 which are to be formed by the jaws from a tubular package carried by a conveyer belt 18. The jaws 9, 10 are carried by elements 11, 12, the element 11 being movable vertically by a double-acting fluid operated cylinder 15, and the elements 11, 12 also supporting racks 16 engaging respective pinions 17 whereby movement of the element 11  in one direction causes movement of the element 12 in the opposite direction. In operation of the device, the carriages 1, 2 move in one direction at the same speed as the conveyer 18 and the jaws 9, 10 close during each stroke of the carriages in that direction to seal and sever the packages 19, the carriages thereafter returning to their original position. The carriages are moved by a known mechanism, and the jaw 9 which carries a heating element 9b, is cooled by compressed air applied to a hollow frame structure 22 arranged about the jaw 9. The device may comprise only one carriage and the carriage(s) may be controlled by fluid operated means.
Patent GB-807162-A (GB)
Title: Improvements in and relating to phase angle measurement
IPC: G01R25/00
Filed: 1955-06-09
Abstract: 807,162. Phase measurement. FELTEN & GUILLEAUME FERNMELDEANLAGEN G.m.b.H. June 9, 1955 [June 12, 1954], No. 16571/55. Class 37. Apparatus for measuring the phase angle between two signals of the same frequency in response to the time interval between the instants at which the amplitude of each signal is zero, wherein eadh signal alternately deflects the band-shaped electron beam of a cathode-ray tube without display screen, across an electrode with a slit therein through which the electron beam passes only when the deflection signal is zero, and the resultant pulses of anode current modulate the brightness or radially deflect the trace of a circular cathoderay oscillograph display, the angular displacement between the modulation points being proportional to the phase angle between the input signals. In a transmitter S (Fig. 2), two crystal oscillators G1, G2 of frequencies f1, f2 are connected to mixers SM1, SM2, together with continuously variable oscillator G of frequency fv. After amplification at V the signal fv-f is connected to the circuit M whose phase shift is to be determined, and through voltage measuring probes T1, T2 to mixer EM2 of receiver E, while the output of circuit M is connected to mixer EM1; the mixers being also supplied with signal fv-f2 from the transmitter. The resultant signals ZF, ZF1 at intermediate frequency (f1-f2) differing in phase angle by the phase shift of M and in amplitude by the attenuation of M are alternately connected by switch U through band-pass filter BF and amplifier V to deflection plates d of a cathoderay tube (Fig. 1) without a display screen, which has a cathode k, slotted focusing electrodes g1, g2, g3, forming a bank-like electron beam, and a further slotted electrode g4 across which the beam is traversible by plates d to pass through the slot and secondary emission screen g5 and impinge on the anode a when each deflection signal amplitude is instantaneously zero. The time displacement between successive anode current pulses represents the phase shift introduced by circuit M and is determined by applying the pulses to instantaneously brighten the trace of a circular trace C.R. oscillograph synchronized from the intermediate frequency ZF1, so that the phase shift is represented by the angular displacement between the bright points.
Patent GB-1144862-A (GB)
Title: New tetracyclic triketones
Inventor: TURNER JOHN CAMERON
IPC: C07C62/38
Filed: 1967-04-11
Abstract: 1,144,862. Tetracyclic triketones. BIOREX LABORATORIES Ltd. 12 Feb., 1968 [11 April, 1967], No. 16589/67. Heading C2C. Novel compounds of the general formula wherein X is H or an alkyl radical, are prepared in a process which comprises reacting a compound of the general formula with ozone in a solvent which is inert to ozone to give the corresponding ozonide, this latter then being reduced with a reducing agent such as zinc dust and an acid or with dimethyl sulphide or trimethyl phosphite. Pharmaceutical compositions having antiinflammatory activity and containing the compounds defined above are administered orally or parenterally in association with a solid or liquid pharmaceutical carrier or diluent.
Patent GB-1168559-A (GB)
Title: Curtain Clip
Inventor: LIEBNER MENDEL
IPC: A47H13/04
Filed: 1967-04-12
Abstract: 1,168,559. Suspending curtains. M. LIEBNER. 11 April, 1968 [12 April, 1967], No. 16711/67. Heading A4B. A curtain suspension clip as claimed in claim 1 of patent No. 1044830 further includes either, as in  . Fig. 1 a hooked extension of its stem part A when extension bears on or passes closely adjacent to the tape-supporting part B and has a free and bent away from the part B, or, as in Fig. 2, has a head part G for slidably engaging a curtain rail. The head part G may be T-shaped, as shown, or may be in the form of a U (H, Fig. 4) with inturned free ends. The clip is optionally provided with upstanding prongs E which may terminate in spherical or cube shaped enlargements (F, Fig. 2).
Patent GB-401226-A (GB)
Title: Devices for securing grinding, waxing, polishing or like attachments to the brush members of apparatus for treating floors and like surfaces
IPC: A47L11/164
Filed: 1933-06-12
Abstract: 401,226. Grinding, waxing, or polishing machines. ELECTROLUX, Ltd., 153, Regent Street, London.-(Assignees of Inventia Patent-Verwertungs-Ges. ; 10, Herrenacker, Schaffhausen, Switzerland. June 12, 1933, No. 16755. Convention date, June 18, 1932. [Classes 19, 60, and 138 (i).] A grinding, waxing, or polishing attachment, such as a flat disc 20, is secured detachably to the disc-shaped brush member 10 of a floortreating machine by means which permits the attachment to rotate relatively to the bristles 11. As shown, the disc 20 is free to rotate about a sleeve 19 carried by a plate 15, which has spring arms 16 adapted to snap into a rectangular slot 14 in the brush stock 10. In a modification, the central aperture in the disc 20 has a metal reinforcement which is adapted to snap over and rotate on a spring stud fixed in the brush stock.
Patent GB-359962-A (GB)
Title: Improvements in the manufacture and production of mixed fertilisers
IPC: C05C9/00
Filed: 1930-05-30
Abstract: Fertilizers are produced by preparing at high temperatures fluid mixtures of calcium salts which are insoluble or difficultly soluble in water with highly concentrated solutions or melts of urea or mixtures or double compounds containing urea e.g. urea-calcium nitrate and allowing the mixture to solidify e.g. by means of cooling rollers or by spraying.  The solidified product may be dried e.g. in a drying drum at a moderate temperature.  The calcium salts may be the carbonate, sulphate, dicalcium phosphate or crude phosphates. The fluid mixture may be obtained by adding the calcium salts at an elevated temperature to the solution or melt of urea &c. or by mixing the ingredients in the cold and heating.  The fluid mixture may be prepared at 75-130 DEG  C. but it is preferably prepared at 100-130 DEG  C.  The urea solution should not contain more than 20 per cent of water, and preferably should have only 5-8 per cent of water. Specifications 154,562 and 315,485, [both in Class 111, Sewage &c.], are referred to.
Patent GB-125020-A (GB)
Title: Improvements in or relating to Internal-combustion Engines.
Inventor: STANFIELD JOSEPH REGINALD MONT
IPC: F02B33/14
Filed: 1918-10-16
Abstract: 125,020. Stanfield, J. R. M. Oct. 16, 1918. Two-stroke-cycle engines.-In a cross-connected engine having cylinders of two diameters, the inlet ports in the pump spaces are controlled by the pistons and open into a common supply passage E in which a fuel-spraying nozzle is located at E<1>. C<2>, C<3> are transfer pipes between the pumps and the combustion spaces. In the construction shown in Fig. 1, the inlet ports to the pumps are uncovered by the pistons at the ends of the inward and outward strokes, thus enabling air to be drawn through the crank casing. If preferred, the trunk pistons may be lengthened so as to cover the inlet ports at the ends of the up-strokes. In this case, the air supply enters the passage E without traversing the crank casing. A choke tube may surround the fuel nozzle.
Patent GB-1017646-A (GB)
Title: Preparation of aromatic amino compounds
IPC: C07C209/36
Filed: 1963-04-30
Abstract: In a process for the preparation of aromatic amino compounds in a mixed solvent there is uses for the catalytic reduction of an aromatic nitro compound in liquid phase in the presence of a catalyst preferably a nickel catalyst, a mixture of a lower alcohol and an aromatic solvent as the reaction solvent.  The mixed solvent preferably contains 40-5% by weight of an alcohol and 60-95% by weight of aromatic solvent.  Specified lower alcohols are methanol, ethanol, n-propanol, isopropanol. Specified aromatic solvents are benzene, toluene, xylene and halogenated benzenes such as monochlorobenzene, orthodichlorobenzene, metadichlorobenzene, paradichlorobenzene, mixed dichlorobenzenes, trichlorobenzene, bromobenzene.  In an example a mixture of 2,4- and 2,6-dinitro-toluenes (2,4-isomer about 80% and 2,6-isomer about 20%), a mixed solvent of 142.5 parts of a dichlorobenzene and 7.5 parts of methanol, and finally a nickel-talc catalyst containing an amount of nickel corresponding to 0.5% per the amount of dinitrotoluene are fed sequentially into an autoclave and the reaction carried out under a pressure of 50 kg./cm.2, at 100 DEG  C., and is finished after 40 minutes, the catalyst being filtrated off and tolylenediamine of 99% or higher in purity is obtained by distillation. Other examples are given.
Patent GB-673525-A (GB)
Title: Improvements in or relating to knuckle couplers for railway and like vehicles
IPC: B61G3/06
Filed: 1950-07-07
Abstract: 673,525. Automatic couplings for vehicles. ENGLISH STEEL CORPORATION, Ltd., DADSWELL, C. J., and WHITEHOUSE, G. D. Nov. 24, 1950 [July 7, 1950], No. 17044/50. Class 103(v) A knuckle coupler, of the type having a lock manually operable through a lock lifter and a rotor, has the rotor arranged for actuation by means of a side pull lever which is pivoted to the coupler and has one end adapted for co-operation with a cam surface on the rotor, the lever being connected at its other end with an operating means at the side of the vehicle. In the embodiment shown a generally L- shaped lever 22, Fig. 3, is pivoted at 23 to a coupler head 1. The end 22b of the lever 22 is connected by means of a chain or rope to a pulling handle at the side of the vehicle whilst the end 22a is shaped to engage a cam surface 20a, Fig 5, on the rotor 12. When the lever 22 is rotated its end 22a slides in a slot 20 in the rotor 12 to rotate the rotor about its pivot 6, and the lock lifter 11, which is pivoted at 9 to the rotor 12, is thereby operated. Anti-creep means 14a, 16a are provided on the rotor and lock lifter respectively.
Patent GB-745637-A (GB)
Title: Improvements relating to aircraft reaction propulsion units and installations
Inventor: ELLIOTT ALBERT GEORGE
IPC: F02K1/56
Filed: 1952-07-08
Abstract: 745,637. Controlling jet-propelled aircraft. ROLLS-ROYCE, Ltd. June 19, 1953 [July 8, 1952], No. 17255/52. Class 4. [Also in Group XXVI] A reaction propulsion installation in aircraft structure comprises a jet pipe having a main propulsion nozzle and porting in the wall of the jet pipe upstream of said nozzle, obturating means for the porting, auxiliary gas ducting having upstream facing auxiliary nozzle means and arranged for rotation about the axis of the jet pipe from an inoperative position in which the auxiliary nozzle means is retracted into the aircraft structure and in which the obturating means actuated in accordance with movement of the auxiliary gas ducting closes off the porting, to an operative position in which the auxiliary nozzle means projects from the aircraft structure and in which the obturating means uncovers the porting to place the inlet end of the auxiliary gas ducting in communication with the jet pipe and means having an operative position to constrain at least a substantial portion of the exhaust gases to flow through the porting to the auxiliary nozzle when the latter is in its operative position thus to provide a reverse thrust. The jet pipe 13 is mounted within an engine nacelle 11 and is provided at its rear end with a butterfly valve 19 actuated by an hydraulic motor 24 through a linkage 25 so that it may be moved from an inoperative position (dotted lines) to an operative position (full lines) in which it will restrict or prevent the rearward flow of gas. Intermediate its length the jet pipe has an aperture 15 in a region which is surrounded by a rotatable sleeve 16 mounted on bearings 18, the sleeve carrying a tubular extension 17 formed with a forwardly directed nozzle 17a. The extension 17 passes through a rotatable wall 27 of the nacelle and this is mounted on bearings 28 so that the unit 16, 17 and 27 may be rotated by a reversible electric motor 23 through gears 20, 21. The motors 23 and 24 are operatively connected in order that the extension 17 may be moved from an inoperative position, where it is enclosed by the wing or nacelle and where the sleeve 16 masks the aperture 15, to an extended position for braking purposes, the valve 19 being moved simultaneously from its inoperative (dotted) position to its operative (full line) position. A further embodiment (Fig. 4, not shown) incorporates one extension 17 above, and one below, the wing or nacelle.
Patent GB-826562-A (GB)
Title: Improvements in or relating to polymerization process
IPC: C08F110/02
Filed: 1956-06-04
Abstract: Ethylene is polymerized with a Ziegler-type catalyst as disclosed in Specification 799,823 and in the presence of a boiling inert solvent, e.g. pentane, hexane, heptane, xylene or propane.  Temperature control may be effected by the withdrawal of solvent vapour and by the addition or return of condensed solvent.  The process of the invention, which may be batchwise or continuous, minimizes skin formation in the reaction zone.  In examples the various reaction ingredients are added during the polymerization, subsequent to which catalyst may be destroyed with methanol.  Specifications 815,161 and 826,561 also are referred to.
Patent GB-953485-A (GB)
Title: Improvements in vertically arranged machines with oil-lubricated bearings
Inventor: VOSE JOHN KENNETH
IPC: F16N7/36
Filed: 1962-05-04
Abstract: 953,485. Viscosity pumps. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 14, 1963 [May 4, 1962], No. 17272/62. Heading F1C. [Also in Division F2] A viscosity pump for. feeding oil from a reservoir 17 to bearings (see Division F2) comprises a rotor 19 mounted on a shaft 10 and discharging into a pair of diametrically opposite tangential slots 22 from which rise delivery ducts 25, 26, the slots being so shaped and the connections of the ducts thereto being so positioned that the ducts are fully effective for one direction of rotation only of the shaft. A second delivery duct (not shown) is so connected to each slot as to be effective for the opposite direction of rotation.
Patent GB-595538-A (GB)
Title: Improvements in or relating to wheels for mine cars, pit tubs and the like
IPC: B61F17/10
Filed: 1945-07-06
Abstract: 595,538. Lubricating mine car wheels. ODDIE, J. M. July 6, 1945, No. 17280. [Classes 12 (i) and 12 (iii)] The hub 1 of a mine car wheel 2 is hollow to contain oil or grease which is circulated through passageways 8 in the wheel hub which open on to the bearing surfaces, the circulation being affected by the slight axial movement of the wheel allowed relatively to an end collar 12 on the fixed axle 5 by which collar 12 the wheel is retained axially on the shaft. The hub is formed with an inner flange or sleeve 4 containing a bushing 6 of the material known under the Registered Trade Mark " Oilite." The flange or sleeve 4 is formed with axial channels 8 communicating with a circumferential channel 9 formed on the outside of the bushing 6 from which apertures 7 open on to the bearing surface. The end collar 12 is shrunk or screwed on a reduced end 5<1> of the shaft and may be held in place by a cross pin 13. A screw-in end cover 15 for the hub is locked by a set screw 16 and carries a filling nipple 17. An axially protruding rim 19 is formed around the hub end to protect the screw-in end cover 15 against damage by knocking. According to the Provisional Specification also the shaft may have an axial bore and diametral cross bores providing further lubricant circulating passages.