baber/WOPTO huggingface dataset:
Patent GB-1003037-A (GB)
Title: Improvements in and relating to moulds
Inventor: JONES-HINTON JAMES
IPC: B29C70/70
Filed: 1962-04-10
Abstract: Cellular articles are made in a polypropylene mould.  Articles are made of polyurethane, latex foam rubber or plasticized or unplasticized vinyl resin, such as polyvinyl chloride. Polyurethane foam is derived from an organic isocyanate or isothiocyanate (e.g. toluene diisocyanate) and an organic compound having a plurality of isocyanate-reactive groups (e.g. a polyether diol such as polyglycol, a polyester, a polyesteramide or a glyceride of a hydroxy acid such as ricinoleic acid).  The polyurethane is formed by a one-stage reaction between these materials, or by way of a prepolymer as an intermediate reaction product having available NCO or NCS groups. Specification 1,003,031 is referred to.
Patent GB-960640-A (GB)
Title: Two-stage oil separator
IPC: B01D46/24
Filed: 1961-04-18
Abstract: 960,640. Separating oil from gases. ROCKWELL STANDARD CORPORATION. April 18, 1961 [May 25, 1960], No. 13915/61. Heading B1T. [Also in Division F2] A two stage oil separator unit for disentraining oil mist from the air stream from a compressor comprises a flanged cylindrical base 10, Fig. 2, with two concentric cylindrical members extending longitudinally of the base and secured thereto. The outer member forms a shroud 20 for the inner member or frame 30 which is perforated around its cylindrical surface and closed at the end opposite the base 10 by a plate 31. The outer surface of the frame 30 has layers of filtering media 41 secured thereto between screens 40 and 42, forming the first stage of the separator. The second stage is formed by a filter element 50 situated in the base 10 such that a chamber 19 exists, adjacent the outlet pipe 8, 9, for collecting the separated oil. The separator unit 1 is located in a receiver 2, Fig. 1, into which passes the oil-laden air. In the first stage, a proportion of the oil is removed when air passes through the frame 30 and is deposited in the receiver bottom. Oil which passes through the first stage of the filter is in larger droplet form and is conveyed to the second filter element 50 which is arranged with elements of decreasing density in the direction of air flow which promotes large droplet formation which are subsequently collected in the chamber 19. The collected oil may then be piped to the receiver for recirculation whilst the cleaned air passes out through pipe 8.
Patent GB-687547-A (GB)
Title: Method and apparatus for forming thin-walled metal sleeves
IPC: B21C37/15
Filed: 1951-06-14
Abstract: 687,547. Making cathodes. RADIO CORPORATION OF AMERICA. June 14, 1951 [June 20, 1950], No. 14131/51. Classes 83 (ii) and 83 (iv). Winding; curving.-In bending metal foil to sleeve form of small diameter for cathodes of electron discharge devices &c. the foil is curved and then rolled between two converging members of resilient material which rotate and reduce the sleeve to the desired diameter. Foil blanks 11 are fed by a conveyer 24 between a hard roll 19 and a rubber &c. covered roll 12. The roll 19 is mounted on a pivoted member 17 pulled by a spring 10 adjusted to cause compression of the rubber and initial curving of the foil. The curved foil is then rolled between converging surfaces of the roll 12 and a rubber member 18. The formed sleeves drop down a shoot 25. In a modification for hand operation the roll 19 is carried on a sliding carriage and the sleeve is rolled between two flat converging rubber members.
Patent GB-857316-A (GB)
Title: A temple member for a pair of spectacles
IPC: G02C11/06
Filed: 1959-04-24
Abstract: 857,316. Hearing aids. MAICO ELECTRONICS Inc. April 24, 1959 [Sept. 22, 1958], No. 14163/59. Class 40 (4). A complete hearing-aid or other electrical circuit is arranged in a side-piece of a pair of spectacles. The side-piece 10 comprises a housing 12 with a base 14 and sides 15, 16 of plastic material moulded integrally. A metal cover 23 for the housing has an extension 23a carrying a hinge 34 for attachment to the front of the frame. Covers with extensions of different lengths may be provided to fit the same housing. The rear of the side-piece is formed with a second housing 16 for the battery 20 and the microphone 21. The cover-plate 22 for housing 16 lies against the head. A receiver 18 and a transistor circuit 19 are fitted with other components in housing 12. The housing 12 may be divided into separate chambers by a partition 26, a gap 25 being left for the wiring 27. The cover 23 is secured to the housing by nuts and bolts. The bolts are welded to the cover 23 and engage nuts countersunk into the base of the housing.
Patent GB-1337535-A (GB)
Title: Device for measuring the workability consistency slump and  compaction of fresh concrete
IPC: G01N11/10
Filed: 1972-03-27
Abstract: 1337535 Testing concrete mixes K W NASSER 27 March 1972 [25 March 1971] 14199/72 Heading G1S A device for testing the workability of a concrete mix comprises a tube 1 having a bore 2, a plate 6 fixed to the tube, a series of slots 7 and index means 9. The tube 1 is plunged into the concrete mix up to the plate 6, left in the mix for a time, and then withdrawn, the workability being indicated by the height of the residual concrete in the bore 1 as measured by index  means 9. There may be four slots 7, and four rows of eight holes 1 each may be provided above the slots.
Patent GB-348374-A (GB)
Title: Improvements in metallic packing for the shafts of pumps and the like
IPC: F16J15/38
Filed: 1930-05-08
Abstract: 348,374. Stuffing - - box substitutes. BODART, F., 67, Rue du Pige, Marchienneau-Pont, Belgium. May 8, 1930, No. 14218. Convention date, May 16, 1929. [Class 122 (v).] Packing for the shaft 1 of a centrifugal pump &c. comprises a ring 15, revolving with the shaft, and formed with ribs and grooves engaging similar ribs and grooves on a non- rotating ring 10, having universal movement. A flange on the ring 10 engages a rubber ring 8 in a recess in a bush 4 and rotation of the ring is prevented by studs 11, screwed into the flange 5 of the bush 4, and passing with clearance through holes in the ring. Packing 25 in a recess in the ring 15 is compressed by a flange on a ring 17 acted on by springs 42 in holes in a collar 18 secured to the shaft. Studs in the ring 15 pass through holes in the rings 17, 18. The bush 4 has a grooved anti-friction metal lining 6.
Patent GB-1129733-A (GB)
Title: Improvements relating to methods for increasing the surface smoothness and the density of the surface layer of lignocellulose-containing board materials
IPC: B27N7/00
Filed: 1967-03-29
Abstract: 1,129,733. Woodworking. STIFTELSEN WALLBOARDINDUSTRIENS FORSKNINGSINSTITUT. 29 March, 1967 [30 March, 1966], No. 14248/67. Heading B5L. [Also in Division D2] A method of treating lignocellulosic boards in order to increase the density and surface smoothness of the surface layer of the board comprises contacting the surface of the board with a highly polished heating surface having a surface temperature in the range 300‹ C. to 500‹ C., at a pressure not exceeding 15 kg/cm.<SP>2</SP> for a period not exceeding 15 seconds. The board may be cardboard, carton board, particle board, insulating board, semi-hard board and hardboard and asphalted board. Preferably the temperature is between 350‹ C. to 450‹ C. and the period does not exceed 10 seconds and the pressure 3 kg/cm.<SP>2</SP>. After 2 to 5 seconds, the pressure may be reduced to 0À2 to 1 kg/cm.<SP>2</SP>. Both surfaces of the material may be treated. The pressure may be applied intermittently.
Patent GB-168149-A (GB)
Title: Improved rotatory brushes or scrapers for removing of rust, paint or the like
IPC: B08B7/02
Filed: 1920-05-25
Abstract: 168,149. Sandblom, G. E. May 25, 1920. Cutter heads. - In a rotary scraper for removing paint &c., each single scraper, composed of stiff but flexible material, comprises an operative end portion 18 substantially parallel to the axis of rotation of the tool and an intermediate portion 6 substantially perpendicular to the axis of rotation. The drawing shows a brush; for a scraper the bristles or tines 6 would be of greater width. A portion of each scraper forms a helical coil 7 wound about a shaft 3 carried by a base-plate 1, the rear end of the coil being inserted in a hole in the base-plate. Rotation is effected by a prime mover which rotates a driving shaft 14 connected to the baseplate, the tool being held by a handle 16 rotatably mounted on bearings provided on the shaft 14. The scrapers may be arranged on a number of shafts carried by the base-plate 1.
Patent GB-989697-A (GB)
Title: Improvements in or relating to adjustable drafting heads for drawing boards
Inventor: DARGUE ERIC LEWIN
IPC: B43L13/08
Filed: 1963-04-10
Abstract: 989,697. Draughting heads. DARGUE BROS. Ltd. April 10, 1964 [April 10, 1963], No. 14267/63. Heading G1X. A drafting head is provided with one pair of rollers 18, 20 mounted on fixed pivots 22, 24 and another pair of rollers 26, 28 mounted on spring- loaded pivots 30, 32, the rollers being arranged to engage on tracks formed on opposite sides of a rib 16 on a straight edge and, the spring loaded pivots 30, 32 being carried by a two arm spring lever 34 mounted mid-way along its length on an eccentric boss mounted in a hole in the lever 34 so that the lever can be adjusted towards and away from the fixed pivots, a screw being provided to lock the lever to the drafting head in its adjusted position. The drafting head is provided with a protractor head 12 carrying a scale 14, and in use the head is mounted on the rib 16, the rollers 26, 28 being brought into engagement with the rib by adjustment of the eccentric boss using a knob 42. The boss is then locked by tightening the screw provided in the centre of the knob, and adjustable stops 46, 48 are moved to contact the lever 34 to limit the resilience of the lever.
Patent GB-1498917-A (GB)
Title: Glass composition
IPC: C03C3/076
Filed: 1976-04-08
Abstract: 1498917 Glass composition ASAHI GLASS CO Ltd 8 April 1976 [11 April 1975 (2)] 14344/76 Heading C1M [Also in Division C3] A glass composition consists essentially of (weight per cent): wherein the above oxides total at least 97, (Cr 2 O 3  + SnO 2 ) is 0À5-10, (Cr 2 O 3  + SnO 2  + ZrO 2 ) is 12-25, M is one or more of Ca, Mg, Sr, Ba and Zn, and M<SP>1</SP> is one or more of K 2 O (0-5), Na 2 O (0-18) and Li 2 O (0-5). Fibres of the glass may be used to reinforce cementitious materials (e.g. Portland cement).
Patent GB-1340211-A (GB)
Title: Manufacture of beta-ionones
IPC: C07C/
Filed: 1971-05-12
Abstract: 1340211 #-Ionones BADISCHE ANILIN- & SODA-FABRIK AG 12 May 1971 [13 May 1970 10 April 1971] 14378/71 Heading C2C #-Ionones of formula in which R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are hydrogen or methyl are prepared by oyclizing a pseudo-ionone of formula in which X is or and Y is -C(CH 3 ) = CH- with sulphuric acid at a temperature of from -30 to +20 C. in the presence of a mixture of an optionally chlorinated liquid hydrocarbon boiling at a temperature below 200 C. at atmospheric pressure and a C 1 -C 6  alkanol, the molar ratio of pseudoionone to alcohol being from 1 : 0À05 to 1 : 5 and that of pseudoionone to alcohol being from 1 : 5 to 1 : 15 and the sulphuric acid used having a stength of from 90 to 98%.
Patent GB-1166417-A (GB)
Title: A Switching Circuit comprising Thyristors
Inventor: LINNMAN SVEN NILS JOHANNES
IPC: H03K17/73
Filed: 1968-03-26
Abstract: 1,166,417. Control of D.C. motors. S. N. J. LINNMAN. 26 March, 1968 [29 March, 1967], No. 14470/68. Heading H2J. [Also in Division H3] A circuit suitable for providing variable width pulses to a load (e.g. a D.C. motor) comprises a first thyristor T 1  connected in series with the load, a commutating thyristor T 2  connected to a resistive load R 2  and a commutating capacitor C, the load comprising inductance L such that when the commutating thyristor T 2  is fired, T 1  is extinguished and the circuit R 1 , L, C, R 2  rings causing a reversal of current in R 2  and T 2  to be switched off. Thus when the load is de-energized, both thyristors are off. When the energizing period becomes long and thus the off period short the resonant circuit may not have time to switch off the commutating thyristor but only a little power is wasted. The inductance and resistance may be those of the motor and diode D prevents excessive reverse voltage.
Patent GB-706929-A (GB)
Title: Improvements in or relating to systems for energizing electrical precipitators
IPC: B03C3/66
Filed: 1951-06-19
Abstract: 706,929. Electrostatic precipitator. RESEARCH CORPORATION. June 19, 1951 [June 19, 1950], No. 14495/51. Drawings to Specification. Class 39(1) [Also in Group XXXV] !n a system for automatically regulating the voltage of an electrostatic precipitator, to maintain maximum collection efficiency, in accordance with the low-power sparking rate (see Group XXXV) this rate is stated to be 50-100 per minute.
Patent GB-958458-A (GB)
Title: Improvements in or relating to oxychlorination of hydrocarbons
Inventor: CAPP CLIFFORD WILLIAM
IPC: B01J37/02
Filed: 1962-04-14
Abstract: Chlorinated hydrocarbons are produced by contacting a feed containing ethane, hydrogen chloride and molecular oxygen in the vapour phase at elevated temperature with a catalyst comprising copper deposited on activated alumina, the alumina having been subjected prior to deposition, to a heat treatment at a temperature between 500 DEG  and 1,400 DEG C.  The catalyst may be copper, copper oxide or copper chloride which may be applied to the support in any suitable manner. The catalyst/alumina mixture should preferably contain 0.5-10% by weight of copper in free or combined form. The catalyst may also contain an alkali and/or alkaline earth metal in combined form in an amount preferably of 0.5-5% by weight. Suitable compounds are, for example, the hydroxides, chlorides, carbonates, aluminates or nitrates of sodium, potassium or magnesium.  The catalysts may also contain iron or a rare earth metal.  The reaction temperature is preferably in the range 200-500 DEG C.  The main products are vinyl chloride, ethyl chloride and 1,1 and 1,2-dichlorethanes. The dichlorethanes may be further pyrolyzed to give vinyl chloride and hydrogen chloride which may be recycled to the process. By-products include dichlorethylenes, trichloroethanes, tetrachloroethane and pentachloroethane.
Patent GB-1473746-A (GB)
Title: Electrical light buoy
IPC: F03B13/14
Filed: 1975-04-09
Abstract: 1473746 Light buoy PINTSCH BAMAG ANTRIEBS - UND VERKEHRSTECHNIK GmbH 9 April 1975 [18 April 1974] 14559/75 Heading F4R [Also in Division H2] A light buoy has an electric lamp powered from a generator 21, e.g. via a battery, which is operated by a fluid-flow engine 20 aligned with and driven by the flow of water. As shown, the fluid-flow engine is preferably a propeller 20 although a turbine may be used. The propeller 20, generator 21 and gearing 22 form an integral unit mounted in a throughpassage in the buoyancy housing 10 which is anchored at 13. The buoy is aligned with the water flow by a fin 26. The electrical circuitry includes a bridge rectifier and voltage stabilizing and protecting components (Fig. 3, not shown). In another construction, the current generator, propeller unit and aligning fin depend from the buoyancy housing and may have a separate housing therearound. The depending unit pivots about a vertical axis beneath the buoyancy housing (Fig. 2, not shown).
Patent GB-819312-A (GB)
Title: Improvements in shaft couplings
Inventor: WORSTER NORMAN GEORGE
IPC: F16D3/04
Filed: 1956-05-10
Abstract: 819,312. Universal joints. SMITH & SONS (ENGLAND) Ltd., S. May 7, 1957 [May 10, 1956], No. 14576/56. Class 80 (2). A universal joint comprises a member 5, mounted on a first shaft 1 at a location offset from the axis, having a pair of resiliently mounted shoes 8, 9 spaced apart to define a channel directed towards the axis of the shaft, the shoes engaging with a cylindrical pin 10 similarly offset from the axis of a second shaft 2. In a drive between a railway vehicle axle 2 and an electric tachometer shaft 1, the member 5 is mounted in an arm 4 attached to the shaft 1 and supports the shoes 8, 9 through synthetic rubber inserts 6, 7 bonded to the member and the shoes.
Patent GB-1320056-A (GB)
Title: Intigens and antibodies
IPC: C07K16/44
Filed: 1971-05-13
Abstract: 1320056 Opium alkaloid antigens and antibodies F HOFFMANN-LA ROCHE & CO AG 13 May 1971 [13 May 1970] 14629/71 Heading A5B [Also in Divisions B1 and C2] An opium alkaloid antigen consisting of a carboxy-C 1-6  alkyl derivative of the phenolic hydroxy group of an opium alkaloid coupled to an immunogenic carrier material is prepared by reacting the opium alkaloid derivative with an immunogenic carrier material. The immunogenic carrier material may be a protein such as human gamma globulin, human serum albumin, rabbit serum albumin, bovine gamma globulin and bovine serum albumin; a natural or synthetic polymeric compound such as a polypeptide e.g. polylysine or a polysaccharide. The opium alkaloid may be morphine, heroin, codeine or nalorphine or a derivative thereof and the preferred carboxyalkyl derivative of an opium alkaloid is 3-O-carboxymethylmorphine. The reaction may be carried out in an aqueous reaction medium having a pH of 3 to 6.5, at 0‹C to 50‹C, using a molar excess of 30 to 10,000 of the opium alkaloid derivative, in the presence of a water-soluble coupling agent such as a carbodiimide e.g. 1-ethyl- 3-(3-dimethylaminopropyl) carbodiimide. An opium alkaloid specific antibody consisting of a gamma globulin fraction protein having a multiplicity of sites which will selectively complex with an opium alkaloid, a carboxyalkyl derivative of the phenolic hydroxy group of an opium alkaloid or an opium alkaloid antigen consisting of a carboxyalkyl derivative of the phenolic hydroxy group of the opium alkaloid coupled to an immunogenic carrier material is prepared by injecting the opium alkaloid antigen into a host animal repeatedly over a period of time until opium alkaloid specific antibody is present in the blood stream, collecting a blood sample from the host animal after the injection period is completed, separating the serium from the blood sample, precipitating the antibodies from the serum by treating the serum with a neutral salt solution e.g. ammonium sulphate and purifying the antibodies.
Patent GB-692152-A (GB)
Title: Improvements in and relating to scythes
IPC: A01D1/02
Filed: 1950-06-12
Abstract: 692,152. Making scythe blades. HUTTON & CO., Ltd., T. & J., and CLEGG, B. B. May 21, 1951 [June 12, 1950], No. 14630/50. Class 83 (ii). [Also in Group I] A scythe blade is made from straight bar stock 10, Fig. 8, with a stiffening rib 12 and having a cross-section which is substantially that of the finished blade. One end of a blank is cut obliquely to form a point 14, Fig. 3, and the blank is then heated and bent to curved form, Fig. 6. A length 12a of the stiffening rib is transferred by hammering to the opposite face of the blade near the point 14 or may be ground away. Irregularities in the cutting edge 13 are removed by hammering and the blade is then finished by hardening and grinding. A preformed tang 18 is attached by rivets 19.
Patent GB-1092483-A (GB)
Title: Improvements in or relating to axial flow turbine or compressor rotors
Inventor: SNELL LEONARD STANLEY
IPC: F01D5/02
Filed: 1965-04-07
Abstract: 1,092,483. Turbine and compressor rotors. BRISTOL SIDDELEY ENGINES Ltd. March 31, 1966 [April 7, 1965], No.14664/65. Heading F1T. An axial flow turbine or compressor rotor comprises a pair of circular end walls 1, 2 having at their respective peripheries integral blade portions 9, 10 welded together at 12 to form complete hollow blades. The walls 1, 2 are also welded together intermediate adjacent blades but are spaced apart inwards of the blades to form a hollow interior 3 to which cooling air is supplied through holes 7 in a ring 6, the air passing to the interior of the blades before exhausting at the tips thereof. Interfitting dogs 8 also connect the walls 1, 2. A plate 14 is fitted over each blade and adjacent plates abut or are welded together to form a complete annular platform. A similar arrangement of plates 15 forms an annular shroud, or, in a modification, each blade portion 9, 10 is formed integrally with a part of a shroud plate, the two parts being welded together on assembly of the rotor to form the complete plate. In a further modification, instead of using individual platform or shroud plates 14, 15, a pair of plates are fitted around the respective leading and trailing edge portions of one or more blades, or between the sides of adjacent blades, and then welded together and to the blade or blades. Figs. 4 and 5 (not shown) illustrate modifications in which the radially inner portions of the walls corresponding to the walls, 1, 2 are respectively welded (at 25) or bolted (at 35) together.
Patent GB-1354416-A (GB)
Title: Photographic slide projector
IPC: G03B23/06
Filed: 1971-05-13
Abstract: 1354416 Optical projection apparatus EASTMAN KODAK CO 13 May 1971 [14 May 1970 (2)] 14689/71 Heading G2J A magazine slide projector has two projection gates 23, 24 to which slides 27 are alternately supplied from a magazine, it being intended to provide lap dissolve between consecutive images. The projector is able to move the magazine between two positions 16L, 16R in which it is aligned with the gates 23, 24 respectively. In operation the magazine is placed above one of the gates 23 (say) in position 16L. The gate 23 is empty. On receiving a signal "forward" from a remote control console (29), Fig. 1 (not shown), a slide 27 is dropped under gravity into the gate 23 from the magazine. The magazine then shifts to position 16R above gate 24, and in so doing moves a shutter (224), Fig. 6 (not shown), which originally obscured lens 14 so causing a dissolve from the slide in gate 24 to the slide just placed in gate 23. The magazine is then rotated back by one compartment to permit the slide in gate 24 to be taken up. The magazine then rotates forward by two slide compartments and drops a new slide into the gate 24. This completes one operating cycle. The signal "reverse" from the console will produce a similar cycle but with the forward and backward magazine rotations reversed. Movement of the magazine between positions 16L, 16R is caused by movement of a hub between positions 17L, 17R. The hub is mounted on a carriage 77 moving on guides 78 due to a follower 134 in track 130 of cam 84. Magazine rotation is caused by pawl 137 engaging teeth on the underside of the magazine. Movement of pawl 137 is  generated by followers (144), (151), Figs. 10-14 (not shown) engaging cam 85. A locking arm is also controlled by cam 85 and is placed between the magazine teeth between slide changes. Cam 86 controls arm 226 which returns slides 27 from the gates 23, 24 to the magazine compartment from which they originally came. The cams 84, 85, 86 are coaxially mounted and complete a single slide change cycle in one rotation. A dog clutch placed beneath cam 86 ensures that the cams only perform a single rotation, the clutch being released by an electrical impulse to a solenoid (121) mechanically linked to the dog (107), Fig. 8, 9 (not shown). The gates 23, 24 have a clamping mechanism which is released for slide entry/exit and is controlled by a follower 235 on cam 236. Focusing is achieved by an electric motor and a rack and pinion drive associated with each lens 14, 15. The remote control console provides only a single focus control which is automatically switched to control the lens 14, 15 currently projecting an image. (For Figures see next page)