baber/WOPTO huggingface dataset:
Patent GB-1027089-A (GB)
Title: Improvements in and relating to a mechanism for converting rotary motion into reciprocating motion
IPC: B30B1/06
Filed: 1964-06-22
Abstract: 1,027,089. Metal working presses. A. MARTY. June 22, 1964 [July 9, 1963], No. 25682/64. Heading B3H. [Also in Division F2] A stem 43 for forming a workpiece without cutting is reciprocated through a bell-crank 42 from a crank-pin 400 on a shaft 21 mounted in a reciprocating carriage and driven by an electric motor 30, which also drives a carriage mounted eccentric 50 within a link 51 pivoted to a fixed column 12 to reciprocate the carriage 2. The motor 30 is on the carriage 2 and drives through worm and wheel 320, 220 a gear 221 meshing gears 211 and 231 on whose shafts the crank-pin 400 and eccentric 50 are respectively mounted. The throw of crank-pin 400 may be varied stepwise by replacing crank disc 40 with another of different throw, and angular phase adjustment of eccentric 50 and crank-pin 400 is variable between 75 and 105 degrees by disengaging and then re-meshing gear 221. The motor 30 may be stationary with worm 320 slidable on its shaft.
Patent GB-256433-A (GB)
Title: Improvements relating to the manufacture of chromium
IPC: C22B34/32
Filed: 1925-10-14
Abstract: 256,433. Beaumont, J. H., (Metal Research Corporation). Oct. 14, 1925. Dry processes of extracting chromium.- Chromium is obtained by smelting in a blast furnace a mixture containing chromic oxide or ore, an oxygen-containing sodium compound such as sodium carbonate, and carbon. Sodium is liberated and volatilized, and reacts with the chromic oxide with the production of chromium and the reformation of sodium oxide. An oxygen compound of sodium, preferably sodium chromate, may be introduced through the tuyeres for the purpose of decomposing any chromium carbide formed. Loss of sodium may. if desired, also be made up by additions of sodium compounds through the tuyeres.
Patent GB-679732-A (GB)
Title: Improvements in or relating to the manufacture of wound capacitors from metallised dielectric
Inventor: GROUSE RICHARD ALFRED
IPC: H01G4/18
Filed: 1949-10-06
Abstract: 679,732. Electric condensers. HUNT (CAPACITORS), Ltd., A. H. Sept. 20, 1950 [Oct. 6, 1949], No. 25729/49. Addition to 563,080. Class 37. In the parent invention an unmetallized strip is produced on a paper band fully metallized on one side by removing the metal by bringing the material into contact with and moving it past an electrified conductor while maintaining the metallized area of the paper at an opposite polarity so that the current passing burns off the metal along the desired strip. According to the present invention, the paper is replaced by an inelastic plastic material such as reconstituted cellulose, cellulose acetate or nitrate, or an ethenoid polymer, e.g. polystyrene, polyvinyl chloride and polymethyl methacrylate. Specifications 485,965, 503,851, [both in Group II], 560,946, 569,202 and 595,808 are referred to.
Patent GB-866869-A (GB)
Title: Improvements in or relating to shaft packings
IPC: F16J15/36
Filed: 1959-07-28
Abstract: 866,869. Stuffing-box substitutes. AMIRAULT, M., and DESTOUMIEUX, P. July 28, 1959 [Dec. 10, 1958], No. 25833/59. Class 122 (5). A device for preventing the passage of fluid between two relatively rotatable parts 4, 6, Fig. 3, comprises an annular elastic diaphragm 2 which is secured to one of the parts and is arranged to co-operate with the tapered bearing surface B of a support 3 fixed to the same part in such a way that pressure of the sealed fluid urges it against the tapered surface and so expands it in the axial direction as to produce an axial thrust forcing a sealing ring 1 against the other of the two parts. The diaphragm is anchored in a flange A on the support 3 and the assembly so formed is forced into a recess K in the fixed housing 4 for the rotating shaft 6; pins E engaging in holes F prevent rotation of the support. Under fluid pressure, a swelling R on the diaphragm is forced against the tapered surface B and the ring 1 is thereby urged against a shoulder 5 on the shaft 6; the ring 1 may be glued or cemented to the diaphragm and has a splined engagement with the support. If desired, the diaphragm may be formed with several swellings or merely with a tapered face to co-operate with the support 3, and one or more grooves may be provided in the swelling. The device may also be applied to the case in which the sealed fluid is inside the diaphragm 2 which is then disposed inside the support 3 as shown in Fig. 7. In the latter arrangement, the diaphragm and support are fixed to the shaft 6 instead of to the housing.
Patent GB-636735-A (GB)
Title: Improvements in or relating to textile combing machines of the rectilinear type
IPC: D01G19/26
Filed: 1946-08-28
Abstract: 636,735. Combing-machines. NOUVELLE SOC. DE CONSTRUCTION CI-DEVANT N. SCHLUMBERGER & CIE SOC. ANON. Aug. 28, 1946, No. 25860. Convention date, July 27, 1945. [Class 120 (i)] A textile combing machine of the rectilinear type comprises a combing cylinder 5, upper and lower nipper jaws, 3, 1 having a common pivot 4 about which they are rocked through first and second mechanisms respectively from common driving means, the upper jaw being yieldably, and the lower jaw positively, driven. The common driving means comprises a cam 8 rotating synchronously with the cylinder 5 and engaged by a follower 10 carried by a lever 9 attached to a lever 13 pivoted at 11. Rocking motion of the lower jaw 1 is, imparted from the cam through lever 9 and a link 12. The mechanism for rocking the upper jaws from the cam comprises the levers 9 and 13 and a link 14 one end of which, connected to a spring 15 located between the arms of lever 13, may slide in a guide slot 16 in lever 13. In the event of overthickness of the lap the upper jaw will be raised against the pressure of the spring 15 the tension of which may be adjusted by a nut 17. The end portion la of the lower jaw is widened so that in the event of a break in the mechanism it will bear upon sectors 7 at each side of the cylinder 15. The sectors 7 may be used for guiding a dabbing device.
Patent GB-1073839-A (GB)
Title: Brown metallised disazo dyes and their use in dyeing leather
Inventor: BAUMANN HANS
IPC: C09B33/04
Filed: 1966-06-10
Abstract: The invention comprises the copper or iron complexes of disazo dyes of formula <FORM:1073839/C4-C5/1> wherein one X is H and the other OH, one A is a NO2 and the other a sulphonic acid group and one B is a NO2 and the other a sulphonic acid group.  The dyes are prepared by succesive coupling of two appropriate diazo components with resorcinol, followed by metallization with a copper- or iron-yielding agent. The dyes are used to dye leather in brown shades.
Patent GB-504383-A (GB)
Title: Improvements in and connected with apparatus for aerating liquids
IPC: B01F3/04
Filed: 1937-09-24
Abstract: 504,383. Aerating and dispensing liquids. HOYER, H. H., WILSON, P., and DORSET INDUSTRIES, Ltd. Sept.24,1937, Nos. 25961/37 and 22193/38. [Class 14 (i)] An apparatus for aerating liquids by means of compressed gas derived from solid carbondioxide, and for dispensing the product, comprises an outer casing c of wood, heat insulation p enclosed in a waterproof envelope, and an inner metal casing d which houses a removable liquid-receiving vessel a of stainless steel or glass and has a skirt welded to a metal receiver b for the carbon-dioxide ice. The receiver has a gas-tight closure h accessible through an insulated door r in the outer casing, and is connected by pipes 7 and 19 and a passage 6 to a gas diffuser j in the vessel a. The diffuser, Fig. 5, consists of a cup-shaped member 18. with grooves 20, and a screw plug 21 having a dishing 23, grooves 24, 26, and a flange 22 co-operating with the grooves 20. For dispensing the liquid, two dip tubes 27, 28 of different lengths are provided, connected respectively by passages 9 to faucets 29, 30. A drip tray 33 is provided. A non-return valve 11 is provided in the pipe 7, and relief-valves 17 and safety valves 15, 16 are connected respectively to the passage 6 and the space above the liquid in the vessel a. The passages 6, 9 are formed in, and the valves, faucets, and tubes 19, 27, 28 are carried by, a removable metal cover v provided with a hinged cover 2 for a charging aperture 1. The diffuser j, passages 6, 9, and faucets 29, 30 are adapted for easy cleansing. A diffuser in the form of a perforated ring may be used.
Patent GB-747578-A (GB)
Title: Improvements relating to hot water supply systems
IPC: F22D5/08
Filed: 1953-09-22
Abstract: 747,578. Hot-water supply systems; temperature-responsive actuating-elements. RANDALL, W. Dec. 22, 1954 [Sept. 22, 1953], No. 26066/53. Classes 64(1) and 64(2). In a hot-water supply system comprising a boiler 1, a hot water storage tank 2, and an elevated coldwater supply tank 3, the flow pipe 4a, 4b and return pipe 8a, 8b are interconnected by a duct 11 in which a thermally-controlled valve 16 only allows flow of water from the storage tank to the boiler when the water delivered by the boiler is above a pre-determined temperature, but always allows circulation between the boiler and the duct 11. This ensures that water is not supplied to the tank 2 until it has been heated to a pre-determined temperature. The valve 16 is carried by a bimetallic strip 15 clamped to a support 12 which can rock about its lower edge. The strip is adjustable by a screw 19.
Patent GB-834338-A (GB)
Title: Method of separating lignosulphonic acids from aqueous liquids containing same
Inventor: JANTZEN LEIF
IPC: C08H5/00
Filed: 1957-08-19
Abstract: A method of separating alpha lignosulphonic acids from an aqueous liquid containing said acids comprises treating said liquid with minerally-tanned hide for a time sufficient to allow the chemical combination of said acids with said hide and then treating said hide with an aqueous alkali to remove said acids therefrom.  In a modification of the process the aqueous liquid also contains beta lignosulphonic acids and after the removal of the alpha lignosulphonic acids, the liquid is again treated with tanned hide for a time sufficient to allow the chemical combination of said beta lignosulphonic acids with said hide and the hide is then treated with an aqueous alkali to remove the beta lignosulphonic acids therefrom. The hide may be re-used for the separation of the alpha- and beta acids after washing with an aqueous acid, e.g. dilute sulphuric acid. The hide may be employed in finely divided condition.  The aqueous alkali specified is ammonium hydroxide.  Sulphite liquor from the paper pulp process is the specified starting material.  Examples are furnished.
Patent GB-686140-A (GB)
Title: Improvements in photographic studio equipment
IPC: G03B9/58
Filed: 1950-10-28
Abstract: 686,140. Photographic studio equipment. BREBNER, T. Oct. 24, 1951 [Oct. 28, 1950], No. 26349/50. Addition to 532,455. Classes 98 (i) and 98 (ii). In photographic studio equipment as claimed in the parent Specification, a remote control device for effecting the camera exposure comprises a solenoid, electrical connections thereto, a switch in the electrical circuit, and a mechanical link between the armature of the solenoid and the shutter release mechanism, whereby on closing the switch to complete the electrical circuit, the resultant movement of the armature causes operation of the shutter release mechanism. A similar device may be provided to effect the movement of a holder for a number of light-sensitive photographic elements to bring each of the elements in turn to the exposure position. The holder may consist of a dark slide holding several photographic plates or films or a single large plate or film and mounted in slides including catches holding the holder in position against a tension spring, the movement of the armature of the second solenoid causing a temporary depression of the catches to permit the holder to move to the position in which it is held by the next adjacent catch to bring a fresh plate or film or a fresh area of the large plate or film into exposure position. The end of the movement of the armature of the first solenoid may be arranged to close the circuit of the second solenoid to effect shutter release and holder movement in immediate succession. A second solenoid and switch assembly may be provided to permit movement of the plate holder to the third position.
Patent GB-1500579-A (GB)
Title: Method of preparing plaster
IPC: C01F11/46
Filed: 1975-06-20
Abstract: 1500579 Dehydration of gypsum RHONE-POULENC INDUSTRIES 20 June 1975 [28 June 1974] 26374/75 Heading C1A [Also in Division F4] Plaster is produced in a process by dehydrating gypsum in which gypsum and any water accompanying it is contacted for a period of time with a gas stream at a temperature of 150 C. to 1000 C., the gypsum being supplied into a vessel as a straight stream around which a symmetrical, helical stream of hot gases is produced such that the rate of the mass of gas stream delivered to the vessel is greater than that of the mass of the stream of gypsum in the region where they enter the vessel, and separating the dehydrated gypsum plaster from the gases. To prepare a plaster with a high semi-hydrate (Ca- SO 4 ¢H 2 O) content the temperature at which the solids and gases is separated is maintained at from 160 C. to 190 C., while for a large anhydrite content in the plaster this temperature is from 200 C. to 450 C. The plaster generally has a grain size of 5 to 10 Ám. The time of contact between hot gases and gypsum is preferably 0À1 to 10 secs. Suitable apparatus is described made of stainless steel in which the hot gases (e.g. air and CH 4 ) are passed into chamber 2 through inlet pipe 1, the chamber being formed between a casing 4 and a coaxial perforated cylinder wall 3. The gypsum in suspension as a paste, moist fragments, or dry and coarsely crushed is admitted through tube 5; the hot gases and gypsum contact in 6 and the mix pass out through 7 to cylone 8. The temperature of the exhaust gases at 9 is monitored to determine the quality of the product. The apparatus, apart from 8, may be in a horizontal or oblique position.
Patent GB-468274-A (GB)
Title: Improvements in water tube boilers
IPC: F22B17/10
Filed: 1936-09-29
Abstract: 468,274. Water-tube boilers. BLATCHFORD, A. O. Sept. 29, 1936, No. 26385. [Class 123 (ii)] A water-tube steam boiler or water heater comprises a number of blocks of tubes 4 connected to transverse horizontal headers 5, which are located in pairs connected by short ascending conduits 6, the tubes being arranged in zigzag manner at a slight inclination and baffles 12 being disposed so as to confine combustion gases from a furnace 1 to a zigzag path passing along the tubes of one block, around the lower header of each pair and between the headers to the next block. The uppermost header is connected to a drum 8 from which water is fed by a duct 10 to the lowest header. Blocks of tubes may be arranged on both sides of a common drum which may be horizontal. The baffles may consist of a pair of overlapping iron sheets resting loosely upon the tubes.
Patent GB-479784-A (GB)
Title: Improvements in and relating to apparatus for darning
IPC: D04B17/00
Filed: 1936-09-29
Abstract: 479,784. Darning. GILBERT, E. M. Sept. 29, 1936, No. 26408. [Class 112] An appliance for inserting into hose or the like for facilitating darning comprises a member whose external surface comprises two oppositely disposed differently truncated cones 1, 2, with an annular groove 8 where the bases meet to accommodate a flexible ring 9 which holds the work in position. The cones are chamfered at 10 to facilitate removal of the ring. The member may be solid with recesses 6, 7 at the ends, or it may have a hole running throughout.
Patent GB-1083277-A (GB)
Title: Process for the isolation of polysaccharides and lipopolysaccarides having antigenicactivity
IPC: C12P1/00
Filed: 1966-06-14
Abstract: A polysaccharide or lipopolysaccharide which has antigenic activity is extracted from a microorganism, as defined below, which contains it, by treatment with a liquid dialkyl sulphoxide, with subsequent isolation of the polysaccharide or lipopolysaccharide from the dialkyl sulphoxide solution obtained. Microorganisms include all bacteria, yeasts, fungi, protozoa and higher parasites, but excludes viruses.  Dimethyl sulphoxide is preferred, and the resulting isolation may be effected by fractional precipitation.ALSO:Polysaccharides and lipopolysaccharides having antigenic activity are extracted by means of dimethyl sulphoxide from micro-organisms (except viruses).  In the Examples polysaccharides are extracted from the following microorganisms:  Trichomonas vaginalis (Ex. 1), Candida albicans (Ex. 2), Mycobacteria tuberculosis (the solution also containing 0.1% of a polyethylenesorbitolmonooleate detergent) (Ex. 3), Saccharomyces cerevisiae (Bear yeast) (Ex. 4).  Extraction is effected at 60-100 DEG C.  The active agent is isolated from the solvent by fractional precipitation.  The antigenic material may be used in injectable compositions in the form of an aqueous-dimethyl sulphoxide solution, which may contain a surface active agent, and may further be emulsified with paraffin oil.
Patent GB-1235212-A (GB)
Title: Apparatus and method for producing printed circuitry
IPC: H05K3/06
Filed: 1968-06-04
Abstract: 1,235,212. Coating continuous foil. ELECTRO CONNECTIVE SYSTEMS, Inc. 4 June, 1968 [29 June, 1967], No. 26450/68. Heading D1L. Etchant is applied to a conductive foil 10 by roller 14 and a doctor blade 22 cleans part of the surface to produce a pattern of strips 30 and uncovered metal 32 which is subsequently etched.
Patent GB-1493239-A (GB)
Title: Gas tight silicon carbide body
IPC: F28F21/02
Filed: 1976-06-25
Abstract: 1493239 Gas-tight silicon carbide body NORTON CO 25 June 1976 [25 June 1975] 26464/76 Heading ClA The invention relates to a gas impermeable hollow silicon carbide body characterized by a gas tight joint between two separate hollow cast pieces of silicon carbide, the cast pieces and the joint consisting essentially of recrystallized SiC which have been impregnated with Si to yield a density of at least 2À8 g./c.c. in the recrystallized material, the material of the joint and that of the cast pieces being recrystallized at the same time to produce intergrowth of SiC crystals between the material of the joint and that of the pieces. The gas impermeable hollow SiC body may be formed by preparing two separate hollow pieces from SiC particles, the particles having a bimodal distribution defined as two separate groups of particles having different particle sizes, roughening the mating surfaces of the two pieces to be joined, wetting the roughened surfaces and applying a coating of casting slip composition on the roughened wetted mating surfaces, allowing the coating to dry and then firing the dried and mated surfaces to a temperature sufficiently elevated to recrystallize the SiC, and then impregnating the fired recrystallized product with Si at temperature in excess of 1950‹ C., the impregnation being undertaken in an inert gas atmosphere containing an appreciable partial pressure of Si. The larger silicon carbide particles preferably have a size distribution between 30 and 150 Ám and constitute 50% by wt. of the mixture, while the remainder, smaller particles have a size 3-5 Ám. The SiC body may contain 10-30 wt. per cent elemental Si, and have a maximum grain size of 150 Ám.
Patent GB-940489-A (GB)
Title: Penicillins
Inventor: SJOBERG BERNDT OLOF HARALD
IPC: C07D499/00
Filed: 1961-07-21
Abstract: a -Aminobenzylpenicillin or a non-toxic salt thereof is produced by catalytically hydrogenating a -azidobenzylpenicillin or a non-toxic salt thereof.  The catalyst may be Raney nickel, palladium, platinum or rhodium. Specifications 873,049 and 940,488 are referred to.
Patent GB-1354707-A (GB)
Title: Universal device for checking the distribution of current
IPC: G01R31/50
Filed: 1971-04-19
Abstract: 1354707 Measuring voltage: determining phase rotation direction J-C NUDELMONT 19 April 1971 [10 April 1970 24 March 1971] 26577/71 Heading G1U A voltage tester includes five terminals N, d1, d2, d3, and T, Fig. 2, each connected to an associated neon L4, L1, L2, L3 and L5, respectively, and is characterized in that the first four terminals are connected in two groups of two to a two-way switch P1, as shown, and in that the remaining terminal of the switch is connected to the fifth terminal. By connecting the terminals to a mains supply in any convenient manner the presence or absence of the supply voltage will be indicated. Also by use of the switch, the identity of neutral in a three-phase system can be established. The tester also includes three neons L8, L9 and L10 arranged to ignite at different voltages, e.g. 110v, 220v, and 380v, which neons may, by closing contact 27, 28, be connected across the input terminals dl and N, or, by closing contact 28, 29, be connected across input terminals d1 and d3. A low voltage neon L7, preceded by a voltage doubler C1, C2, D1, D2, may also be connected across input terminals d1 and d3, by depression of a button P2, and this neon is arranged to flash when the voltage d1/d3 reaches 20 to 22v, and to come on full when the voltage d1/d3 reaches about 24v. Finally, the tester also incorporates a neon L11 which only glows if A. C. is applied between input terminals d1 and d3, as opposed to D. C., and a phasesequence sensitive circuit, including a neon L12, connected to input terminals d1, d2, and d3. If the left-hand contacts of ganged switches Ia and Ib are closed neon L12 glows for a phase rotation sequence d123, and if the right-hand contacts are closed then it glows for a sequence d132. In a modification Fig. 8 (not shown), the button P2 is omitted and the low voltage neon is protected by a Zener diode.
Patent GB-1324461-A (GB)
Title: Automatic buttonhole mechanisms in a zigzag sewing machine
IPC: D05B3/06
Filed: 1971-04-19
Abstract: 1324461 Photo-electric control of sewing machine SINGER CO 19 April 1971 [17 April 1970] 26753/71 Heading G1A [Also in Division D1] A photo-electric device controlling the steps of sewing a button hole (see Division D1) comprises a lamp 77, Fig. 5 a bunch 76 of fibre optic strands leading to a reflecting device 32, a second bunch 78 leading from the device 32 to a photo-sensitive device 79 comprising transistors connected as a super alpha pair. The reflecting device comprises a tyred wheel 50 journalled in a block slidable in an arm 37 secured to the sewing machine head Fig. 1 (not shown) and spring-biased into contact with the work. The rim of a boss on the wheel is provided with a fixed reflecting surface 69 and a second reflecting surface disposed on an arm 57 which can be moved around the periphery of the boss to vary the distance between the surfaces. The selected distance determines the length of the button hole, the wheel being turned by the passing material and light signals being sent to the device 79, as the reflecting surfaces pass under the end of the light guide 73 comprising the two bunches 76, 78 of fibre optic strands. Detector 79 is used to operate a solenoid 132 through a silicon controlled rectifier 146.
Patent GB-1513177-A (GB)
Title: Arresting a moving object
IPC: B21J7/02
Filed: 1975-06-24
Abstract: 1513177 Shock absorber end connections DAVY-LOEWY LTD 15 June 1976 [24 June 1975] 26791/75 Heading F2S [Also in Division B3] A moving object, e.g. the pendulum arm 12 of a billet stamper, is arrested without substantial bounce by apparatus comprising a shock absorber 21 against which a member 25 is driven by impact of the arm 12 against an intermediate member 24, the coefficients of restitution between the striking face 33 of the arm 12 and the member 24 and between the latter and member 25 being high. The striking part 33 and member 24 may be steel balls or rollers, the member 25 being a steel cylinder. The arm 12 may be of skeletal form. In other respects the billet is similar to that described in Specification 1,428,385.