baber/WOPTO huggingface dataset:
Patent GB-1197707-A (GB)
Title: Diarylacylophenones and Process for their Preparation
Inventor: IRMSCHER KLAUS
IPC: C07C45/68
Filed: 1969-04-25
Abstract: 1,197,707. Diarylacylophenone derivatives. E. MERCK A.G. 25 April, 1969 [15 May, 1968], No. 21240/69. Heading C2C. Novel compounds I in which R<SP>1</SP> is H or C 1-3  alkyl, R<SP>2</SP> is OH or C 1-6  alkoxy, R<SP>3</SP> is H, OH, C 1-6  alkoxy or R<SP>4</SP> and R<SP>5</SP> are C 1-4  alkyl or together with the adjacent N form pyrrolidino, piperidino or morpholino, and n is 2 or 3 and their physiologically acceptable salts are prepared by reacting a compound II with a compound III in which R<SP>6</SP> and R' may be protected OH groups or R<SP>2</SP> and R<SP>3</SP> respectively, M is MgHal or Li and Hal is Cl, Br or I, and liberating any protected OH groups by hydrolysis or hydrogenolysis and/or alkylating any free OH group and/or, if desired, converting the free base into an acid addition salt. Pharmaceutical compositions comprise a compound I or a suitable salt thereof and a carrier and are administered enterally, parenterally or topically. They have antifertility, oestrogenic, anti-oestrogenic, gonadotrophin-inhibiting, ovulation - stimulating and ovulation - inhibiting effects.
Patent GB-648650-A (GB)
Title: Appliance for stropping or honing razor blades
IPC: B24D15/08
Filed: 1948-08-12
Abstract: 648,650. Sharpening safety-razor blades. CARTER. W. H., and PATCH, A. W. B. Aug. 12, 1948, No. 21247. [Class 60] The blade holder 17 of an appliance for sharpening razor blades is reciprocated longitudinally of a sharpening surface 3 and during each longitudinal stroke receives a plurality of lateral movements in one direction and a plurality of lateral movements in the opposite direction. A trolley 9 runs between pairs of rails 5 and 6 on grooved rollers 20 which are journalled at the ends of spring-biassed levers. To improve stability, the wheelbase of the upper rollers is greater than that of the lower rollers. A static cam 8 is provided to reciprocate a carriage 14 which is guided for transverse movement on the trolley by rollers 25 and formed with an arm 26 carrying a roller 27 in engagement with the cam. Two similar rollers are journalled at the ends of a lever 28 connected with the arm by a spring 30. The carriage has fulcra 16 to support the blade holder which is slotted at its lower ends to receive pins on a hand-lever 34 pivoted at 35 to the trolley 9. This hand-lever is used to reciprocate the trolley and, when the direction of the latter is reversed, it serves to reverse the inclination of the blade holder; its movement being limited by extensions 36, 37 striking the roller axles which thereby act as stops. The blade holder may comprise a hinged resilient arm 41, Fig. 8, having a spheroidal projection to engage the central hole of the blade, the outer holes being engaged by pins 44 in the holder 17. The form of the cam may be other than that shown.
Patent GB-1393153-A (GB)
Title: Motion picture film cartridge
IPC: G03B17/26
Filed: 1972-05-08
Abstract: 1393153 Film cartridge EASTMAN KODAK CO 8 May 1972 [7 May 1971] 21283/72 Heading G2E  In a cine film cartridge of the type having coaxially mounted film rolls and an aperture 14 for film exposure, a locking device 31, 33 is provided whose latch 29 in its first position prevents all rotation of film core 24 in the chamber 26 and in its second position permits rotation of the core 24 in either direction. As shown in Fig. 2 the device includes at least one recess in the rim 33 of the core 24 and a detent 31 on arm 29. The arm 29 is located in a groove 27 to prevent obstruction of the film 15 in the chamber 26. Located behind the aperture 14 is pressure pad 38 which engages a leaf-spring 22, the spring 22 being directly or indirectly attached to the arm 29 and has rigid member 37 attached across its ends. In Fig. 2 the cartridge is shown with the detent 31 engaging a recess in the rim 33 and hence locking the core 24 against rotation. When the pad 38 is depressed, e.g. when the cartridge is inserted in a camera, the spring 22 moves arm 29 radially inwardly to release the detent 31 and thereby permits the rotation of the core 24 in either direction.
Patent GB-972454-A (GB)
Title: Improvements in grills for cooking food
Inventor: GRIMSHAW LLOYD
IPC: F24B1/20
Filed: 1962-06-04
Abstract: 972,454. Underfired grills. KITCHEN SUPPLIES Ltd. June 4, 1963 [June 4, 1962], No. 21449/62. Heading A4D. In a sloping underfired grill, in which grill bars extend perpendicularly to the direction of slope, each bar is of zig-zag profile having ridges 14, 16 and trough 15, 17 and has a serrated front edge with projecting teeth 18. The teeth 18 lie in troughs 15 of an adjacent bar, as the bars are assembled in lateral contact with the rear rectilinear edge of one bar engaging the flats 19 on the front edge of another, so that the serrations divide the gap between the bars into a row of triangular perforations.
Patent GB-928938-A (GB)
Title: Improvements in or relating to the manufacture of waveguides, resonant cavities and other metal articles of precise dimensioning
Inventor: HOWGEGO ANTHONY
IPC: C25D1/20
Filed: 1961-06-14
Abstract: 928,938. Making waveguides by electroforming. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. April 11, 1962 [June 14, 1961], No. 21468/61. Class 41. A waveguide is made by electro-forming using as a mould an alloy of low melting point pre-coated with a thin insulating layer e.g. of plastic over-coated with a conductive layer of a metal e.g. silver. As low melting alloys Woods metal and similar alloys of bismuth may be used. In the Figure a mould 1 of low melting alloy is pressure die-cast to precise dimensions, and is then coated with a thin layer of a plastic 2 over-coated with silver 3 applied by spraying or dipping. A forming plate of copper 4 is then deposited electrolytically to the required thickness. The alloy 1 is removed by melting out, and the plastic layer by treating with a solvent, leaving a waveguide of precision dimensions.
Patent GB-683981-A (GB)
Title: Improvements in chucks
IPC: B23Q3/06
Filed: 1950-08-31
Abstract: 683,981. Chucks. DUNLOP RUBBER CO., Ltd., and WEAVER, W. H. Aug. 22, 1951 [Aug. 31, 1950], No. 21475/50. Class 83 (iii). A bevel-closing chuck has a split collet 7 moved axially in the chuck body by a ball 15 which is pressed inwardly by a plug 33 and screw 17 to bear against a tapered collar 16 on a spring-loaded plunger 10 screwed to the collet and against a reaction ring 5; as an alternative to the ball, the screw may have a conical end engaging in a V-shaped annular groove formed by the collar 16 and a frusto-conical reaction ring 5. The cover-plate 13 and the plunger 10 may be hollow so that the work can extend through the chuck. In a modification, an internally-gripping collet 23, Fig. 3, is expanded by a frusto-conical flange 22 on a plunger 20 and a member 40 may be slidable on the end of the plunger against a spring 44 for correctly locating work having a cavity. A spring-loaded peg 29 operated by a ball 30 and pin 46 may be fitted, the pin being either connected to the locating member 40, so that notches on it indicate the depth to which the collet and locating member are inserted in the work-piece, or to the plunger flange 22, so that the gripping pressure is indicated; in either case, further movement of the locating member or increase of gripping pressure is prevented when the ball 30 engages a further ball 31. Mounting and centring.-A flange 19 may be provided on the chuck body for locating it against the faces of the jaws of a lathe chuck.
Patent GB-1016869-A (GB)
Title: Improved blood cooling and/or heating device,particularly suitable for surgical operations
Inventor: SYZMKOWIAK WLADYSLAW
IPC: A61F7/00
Filed: 1963-05-29
Abstract: 1,016,869. Treating blood. DOM TECHNICZNO-HANDLOWY PRZEDSIEBIORSTWO PANSTWOWE. May 29, 1963, No. 21536/63. Heading A5R. [Also in Division F4S] A device for heating or cooling blood comprises a housing 13 containing blood flow passages defined by outer coaxial pipes 24, 25, connected between nozzles 28, 5, inner pipes 26 coaxial with the outer pipes defining passages for the flow of heat exchange fluid between nozzles 1, 21, the housing also being connected between the nozzles 1, 21 for flow of heat exchange fluid through it in countercurrent to the flow of blood. Blood entering a pipe connection 28 at one end of the apparatus flows by way of a cavity in a cover 19 and the blood flow passages to a cavity in a cover 29 and an outflow pipe connection 5 at the other end of the apparatus. Cooling or heating fluid entering a pipe connection 1 flows into a cavity in a cover 4 and in a direction opposite to the flow of blood along the inner side of the blood flow passages. The inner tubes 25 defining the passages are closed at one end 20 and house cooling or heating fluid return tubes 26 through which fluid flows to a cavity within a cover 3 and thence to an outlet pipe connection 21. The blood and fluid flow tubes extend between end plates 16,16<SP>1</SP> of the housing 13. The exterior of the blood flow passages may be finned or ribbed. For cleaning purposes the covers 3, 4, 29 at one end of the apparatus together with the inner tubes 25, 26 which are connected to them are detachable from one end plate 161, the cover 19 at the other end of the apparatus also being detachable from the other end plate 16. The tubes 24, 25, 26 may be made of stainless steel.
Patent GB-574164-A (GB)
Title: Methods of forming separate colour component images by stripping photographic multilayer film
IPC: G03C1/805
Filed: 1943-08-09
Abstract: 574,164. Colour photography. KODAK, Ltd. Aug. 9, 1943, Nos. 21545/44, (divided out of 574,137), and 21546/44, (divided out of 574,138). Convention. dates, Aug. 7, 1942. Drawings to Specification. [Class 98 (ii)] A method of transferring the outer emulsion from a length of film comprising a temporary flexible support having at least two undeveloped emulsions containing different colour component records coated in superimposed layers on the same side thereof on to an equal length of a permanent flexible support comprises feeding the film through a liquid treatment space wherein the outer emulsion is brought into contact with a liquid which loosens its adhesion to the underlying emulsion, pressing the outer surface of the liquid treated outer emulsion on to the permanent support, transporting the film and the permanent flexible support so pressed in contact with one another until the outer emulsion has become adhered to the permanent support, and loosened from the underlying emulsion, and then detaching the permanent support with the outer emulsion adhering thereto from the remaining film. The film may be as described in Specification 574,137. The separated emulsions may be independently developed either identically or differently. The colour component images produced may be used in the production of gelatin reliefs for the imbibition process or may be processed to colour by the same or different processes. The permanent support may be of cellulose ester subbed with a composition comprising gelatin, acetic acid, water, acetone, and methanol. After exposure, but before development, the multilayer stripping film is immersed in plain water at normal temperature for a definite time and then brought into contact with the subbed perforated permanent support and rolled into contact therewith under water. After the top emulsion layer has bonded to the permanent support, the films are drawn apart in directions roughly at right angles. The wetting bath may contain up to 25 per cent ethyl alcohol. After stripping, the films are dried, and the stripping of the middle emulsion layer is performed in a similar manner. Traces of interlayer are removed by passage over a sponge or other subbing device assisted by jets of water. Before development of the second and third emulsion layers, the interlayer is removed by wetting in aqueous ethyl alcohol and swabbing. The two stripping layers may be of the same cellulose derivative. The apparatus employed may be that of Specification 574,138. The three separated films may be printed on to positive stock and imbibition relief printing matrices prepared therefrom and used for printing a multicolour image. The invention may be applied to a twolayer film, which may be used in a two-colour process or may constitute one element of a bipack, the other element comprising a support carrying a single sensitive layer. Alternatively, the two-layer film may be used in conjunction with a one-layer film in a camera having a beamsplitting device.
Patent GB-440621-A (GB)
Title: Improvements in trucks
IPC: F27D5/00
Filed: 1935-07-30
Abstract: 440,621. Saggers and pottery supports. MOORE, B. J., Parkfield House, Princes Road, Hartshill, Stoke-on-Trent. July 30, 1935, No. 21567. Addition to 433,473, [Group XII]. [Class 87 (i)] [See also Group XII] In a kiln truck according to the parent Specification, the uprights 11 are connected longitudinally and transversely by tie members 15, 18 which are detachably secured, as by dovetail joints, to the sleeves 12 surrounding the uprights 11. The transverse tie members 18 are preferably of elongated form in vertical cross-section and may have secured thereto, either detachably or permanently, thimbles 21, Fig. 4, for supporting plates, dishes, or the like. The tie members are formed of refractory material, such as fireclay, reinforced, if desired, in the manner described in Specification 433,497, [Group XII].
Patent GB-837288-A (GB)
Title: A transducer converting a mechanical torque into electric current
Inventor: DUBSKY BORIVOJ
IPC: G01L1/12
Filed: 1956-07-12
Abstract: 837,288. Torquemeters. VYZKUMNY A ZKUSEBNI LETECKY USTAV. July 12, 1956, No. 21589/56. Class 40 (1). Torque is measured by means of a rodshaped ferromagnetic body clamped at one end and subjected to the torque at the other; A.C. is passed along a conductor which lies in an axial bore in the body and, in the absence of torque, produces no pick-up in a coil surrounding the body; torque deforms the body and the induced voltage in the coil is measured. In the Figure current flows along the wire 1 in an axial bore of the body 2 and the torque applied at the right-hand end is measured by the voltmeter V. The wire 1 may be replaced by one leg of a toroidal winding. Supply voltage fluctuations do not affect the readings if the body is magnetized to saturation.
Patent GB-1433075-A (GB)
Title: Electrolysis of a molten charge using inconsumable electrodes
IPC: C25C3/06
Filed: 1974-05-15
Abstract: 1433075 Electrode compositions SWISS ALUMINIUM Ltd 15 May 1974 [25 May 1973] 21590/74 Headings C1J and C1A [Also in Division C7] A ceramic oxide, useful in the electrolysis of a melt, e.g. based on cryolite or alumina for Al production, is based on SnO 2 , Fe 2 O 3 , Fe 3 O 4 , Cr 2 O 3 , Co 3 O 4 , NiO or ZnO with optional doping amounts of other metal oxide(s) to increase conductivity ; e.g. SnO 2  containing 0À01-20% by wt. of at least one of Fe 2 O 3 , Sb 2 O 3 , CuO, MuO 2 , Nb 2 O 5 , ZnO, Cr 2 O 3 , Co 3 O 4  or WO 3 . The ceramic oxide may surround a conductive core which acts as power connection/current distributor, e.g. of Ni, Cu, Co, Mo, Ag or a conductive boride, carbide or nitride. The oxide is made by isostatic compression of a blend of its component oxides, followed by high temperature sintering of. the green product.
Patent GB-237128-A (GB)
Title: Improvements in and relating to expansion valves for refrigerator systems
IPC: F25B41/06
Filed: 1924-09-12
Abstract: 237,128. Groh, M. S. Sept. 12, 1924. Refrigerating, compression machines for. - The admission of liquid refrigerant to the cooling element of the system is controlled automatically by a float-operated valve arranged in the lower chamber of a receiver, the upper part of which forms a gas or air collecting chamber having a cock for purging operations and a surrounding jacket with means for controlling the admission of refrigerant for extra cooling effect while charging a new machine. The receiver casing 1 is divided by a partition 2 into a float chamber 3 and an air collecting chamber 4, the float 15 having a stem projecting through an aperture in the partition and controlling, by means of a lever 14, a valve 17 in the passage 5 leading to the outlet pipe 6. Surrounding the upper chamber is a jacket 7 that communicates with the passage 5 through a manually controlled valve 10. The liquid refrigerant enters by the pipe 21 from the condenser. Air or other foreign gas may be purged off by opening the cock 22, depletion of the refrigerant being limited by the stem 19 of the float which acts as a piston to lift the float during such operation.
Patent GB-674797-A (GB)
Title: Improvements in or relating to rake wheels for side delivery rakes and the like
IPC: A01D80/00
Filed: 1950-09-01
Abstract: 674,797. Hay-maxing. LELY, C. VAN DER. Sept. 1, 1950 [Sept. 14, 1949], No. 21661/50. Class 6(iii) A rake wheel for a side delivery rake having one or more rotatable rake wheels obliquely arranged with regard to the direction of travel of the machine and provided with resilient teeth 4 is characterized in that the teeth project beyond a wheel rim 2 which is connected to a hub 1 by means of resilient spokes 5, 6. As shown the spokes and teeth are formed in pairs from a single length of resilient wire.
Patent GB-829498-A (GB)
Title: An improved method of carbonisation
Inventor: WILLIAMS FRANK ARCHER
IPC: C10B15/00
Filed: 1955-07-27
Abstract: 829,498. Coking coal. MINISTER OF POWER. Oct. 25, 1956 [July 27, 1955], No. 21682/55. Class 55 (1). A method of effecting the carbonization of particles of weakly coking or non-coking coal comprises feeding the particles into a rotating centrifuge device so that a layer of the particles is formed on its walls, introducing hot gases into contact with the layer to bring it to a plastic condition and then increasing the speed of rotation of the centrifuge device to effect compaction of the layer under the action of centrifugal force. A cylin. drical jacket 1 of heat-insulating material encloses a cylindrical drum 2 having perforated walls. Coal particles of a size of ¢ inch or less are fed through an orifice 4, in a cover-plate 3 of jacket 1, and the drum 2 rotated by means, not shown, acting on a hollow shaft 11 which is journalled in bearings in a central aperture 7 in jacket 1 and is also attached to the lower end of the drum 2. The speed of rotation gives an effective gravity factor of about 5 g. When the coal layer on the inner face of the drum is between 2 and 3 inches thick, a supply of hot gases, which may be of a reducing nature and at a temperature of 500-1000‹ C. is admitted through orifice 5 in cover-plate 3, and passes into the drum 2, through the coal layer, and perforations in the drum wall to pass out through gas port 6 in the jacket wall. Alternatively the gases may be supplied through port 6 and leave through orifice 5. The coal layer is heated up through the plastic condition at a rate of about 50‹ C. or more per minute. When the coal layer is plastic the speed of rotation of drum 2 is increased so that a pressure of 5-100 pounds per square inch is applied to the particles. After a period of up to ten minutes, the gas circulation is stopped, the drum 2 braked and the coked layer removed from the drum wall by an extractor tool 12 having a chiselshaped end 12a, the coked layer dropping through the hollow shaft 11. In a modification the centrifuge device is mounted in a horizontal or horizontally inclined position. In another form a horizontally mounted rotating disc is employed, the coal particles being moved outwards against an annular abutment face.
Patent GB-1531806-A (GB)
Title: Electrochemical machining
IPC: B23H9/16
Filed: 1976-05-25
Abstract: 1531806 Electro-chemical drilling TRW Inc 25 May 1976 21688/76 Heading C7B Electro-chemical drilling in which cathodic electrolyte is impinged upon an anodic workpiece from a hollow insulating cathode utilizes a negative DC with superimposed negative pulses having a ripple of 75-600% of the DC component, the pulses constituting the sole source of drilling current and having an amplitude below the spark discharge threshold. A sawtooth pulse of frequency 60-720Hz may be used having an RMS voltage of 100-800 and negative peaks up to 1200V. The drilling gap may be fixed and the voltage and current periodically increased, particularly at the moment when the hole breaks through the workpiece. Alternatively the drill may move into the hole as drilling proceeds.
Patent GB-1014145-A (GB)
Title: Improved shaft-bearing insert
IPC: F16C33/20
Filed: 1964-05-26
Abstract: 1,014,145. Bearings. PLASTIC & RUBBER PRODUCTS CO. May 26, 1964 [May 28, 1963], No. 21716/64. Heading F2A. A replaceable insert for a shaft bearing, e. g. for marine use, comprises a sheet of material which is rolled around the shaft, the outer surface being of high friction material, e.g. rubber, and the inner surfaces having substantially parallel grooves forming shaft bearing lands. The grooves are parallel to a pair of opposite edges which abut when the sheet is rolled up so that the grooves are parallel to the shaft axis. The insert is retained within a metal sleeve 12 by end shoulders, one being a removable spring clip which facilitates insertion of the insert into the sleeve. The sleeve is held in a propeller shaft supporting strut 16 by a screw cap 40. The lands or the whole of the inner surface are coated with low friction material, e.g. " Teflon " (Registered Trade Mark).
Patent GB-258253-A (GB)
Title: Improvements in and relating to lightning arresters
IPC: H01T1/16
Filed: 1926-09-03
Abstract: 258,253. British Thomson-Houston Co., Ltd., (Assignees of Evans, L. W.). Sept. 14, 1925, [Convention date]. Protective arrangements. -A spark-gap arrester for protecting distribution systems is located under a metallic hood which prevents rain from distorting the normal electric field between the electrodes and thereby altering the sparking potential. A metal cap 9 is connected to the line to be protected and is conductively secured to a metal hood 8 in which is cemented an insulator 4. The electrodes 6, 7 are enclosed in this insulator and placed so as to be shielded by the hood 8 to which the upper electrode is attached, the other electrode is connected to earth through the tube of oxide pellets 3. The space between the cap 9 and the hood 8 serves as a vent from the electrode chamber.
Patent GB-532942-A (GB)
Title: Improvements in or relating to processes for the manufacture of butadiene
IPC: C07C5/333
Filed: 1939-07-26
Abstract: 532,942. Butadiene. INSTITUTO PER LO STUDIO DELLA GOMMA SINTETICA., and NATTA. G. July 26, 1939, No. 21752. Convention date, Aug. 13, 1938. [Class 2 (iii)] [Also in Group III] Butadiene is prepared by the dehydrogenation at elevated temperature of α- or #-butylene in the presence of a metal of the 8th periodic group, preferably nickel, and of carbon dioxide which prevents the deposition of carbon on the catalyst. The temperatures employed range from 500‹C. to 700‹C. Thus, a mixture of equal volumes of α-butylene and carbon dioxide is led at 575‹C. through a catalyst layer consisting of bentonite carrying 5 per cent. of nickel produced in situ by the reduction of a nickel salt. The carbon dioxide is separated by means of a solvent, whilst the butadiene is isolated from admixture with unchanged butylene either by condensation or selection dissolution or polymerization to synthetic rubber. The process may be applied to the butylene contained in cracking gases, or obtained by dehydration of butyl alcohol, or resulting as a by-product in the preparation of butadiene by decomposition of alcohol and acetaldehyde over an alumina catalyst. The heat necessary for the reaction may be supplied by a partial combustion of the resulting hydrogen, an appropriate amount of oxygen or air being introduced with the carbon dioxide. Specification 508,764 is referred to.