baber/WOPTO huggingface dataset:
Patent GB-1155026-A (GB)
Title: Process for the manufacture of Hydroxy-Thiazolidine Compounds
Inventor: WOODWARD ROBERT BURNS
IPC: C07F9/53
Filed: 1966-08-30
Abstract: 1,155,026. Production of hydroxyl derivatives of thiazolidines. R. B. WOODWARD. 30 Aug., 1966 [9 Dec., 1965], No. 24387/68. Divided out of 1,155,019. Heading C2C. Compounds of the formula wherein Ac is an acyl group, X stands for the disubstituted carbon atom of the thiazolidine ring and R 1  stands for a free or functionally converted carboxyl group, are obtained by reacting a compound of the formula wherein R a  is the residue of an alcohol, with a nitrosating agent, and simultaneously or subsequently with a base. The process may be effected by reacting the starting material with the nitrosating agent, e.g. a nitrosyl halide such as nitrosyl chloride, nitroso fluoborate or nitroso perchlorate, preferably in the presence of a base such as pyridine or of an alkali metal nitrite in the presence of an acid, e.g. acetic acid. The resulting intermediate containing a nitroso group, which in one embodiment may also be employed as a starting material, may be converted into the desired product simultaneously or subsequently by treatment with a base, e.g. an alkali metal carbonate, bicarbonate or hydroxide or an organic base such as pyridine; the base may also serve as a solvent or a further solvent may be added and the reaction may be carried out at a reduced or ambient temperature, optionally in an inert atmosphere. A resulting mixture of isomers may be resolved by conventional methods, e.g. fractional crystallization, adsorption chromatography; resulting racemates may be resolved by forming a mixture of diastereoisomeric salts with optically active salt-forming agents, separating the mixture into the diastereoisomeric salts and converting the isolated salts into the free compounds. In specific examples the only examples of the radicals Ac and X which are described are the t-butyloxycarbonyl radical and a dimethyl substituted carbon atom respectively. The products of the invention may be chemically modified by conventional methods, for example the hydroxy group may be converted to an esterified carboxyl group, an ester radical R 1  may be converted to the free acid, or a free acid radical R 1  may be converted to a functional derivative, many of which are described, e.g. ester, amide, azide, hydrazide, nitrile, azocarbonyl or azidocarbonyl.
Patent GB-732520-A (GB)
Title: Method of synchronization for magnetic sound recorders
Inventor: BOUVRAT ROBERT
IPC: G11B23/42
Filed: 1953-09-07
Abstract: 732,520. Magnetic recording and reproducing apparatus. ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI. Sept. 7, 1953 [Sept. 8, 1952], No. 24653/53. Drawings to Specification. Class 40 (2). , A method of automatically synchronizing the traverse movements, of a magnetic transducer with longitudinal movements of an elongated record sheet, comprises superimposing a continuous low-frequency signal on the audio signal, and utilizing said low-frequency signal, during reproduction to energize a relay controlling the feed movement of the record sheet. Specification 674,570 is referred to.
Patent GB-388681-A (GB)
Title: Improvements in suspension insulators for electric transmission lines
IPC: H01B17/34
Filed: 1932-09-05
Abstract: 388,681. Insulators. FAIRWEATHER, H. G. C., 65, Chancery Lane, London.- (Compagnie Generale d'Electro Ceramique; 16, Rue de la Baume, Paris.) Sept. 5, 1932, No. 24662. [Class 36.] A suspension insulator comprises a single ceramic insulating body a held between metal caps c, d, the lower c of which forms the bottom of an oil cup b, the oil in which extends up to the lower edge of the upper cap d. A cover e is provided.
Patent GB-1043583-A (GB)
Title: Running image microfilm photographic device
IPC: G03B27/50
Filed: 1963-06-21
Abstract: 1,043,583. Photocopying apparatus. U. WELP. June 21, 1963 [July 3, 1962, Jan. 11,1963], No. 24680/63. Heading G2A. Running image microfilm photocopying apparatus comprises a camera combined with a developing and fixing unit in which the film can be stopped at any instant in response to a control system which operates when, for example, errors in exposure or continuity occur. Film is led from spool 1 to the exposure station 3, 4 where original on conveyor belt 12 are copied, and on to the developing and fixing device 5 after which are provided a lens 6 for visual examination of the film, a photoelectric device 7 in which the density of the continuously exposed film margin is compared with a standard, and a roller 8 to sense the motion of the film. A further roller detects tearing on the film by generating an induction potential as a control signal. The devices 7 and 8 and the roller stop the apparatus if irregularities occur. The film is washed at 9, dried at 10 and rewound on spool 11. The apparatus copies 15 originals per second. In an embodiment, inclined mirrors direct light from the original to the objective lens, or a further system of mirrors may be used to photograph both sides of the original using the same objective, a transparent belt 12 being then required.
Patent GB-599765-A (GB)
Title: Improvements in and relating to carriers for pneumatic transmission systems
IPC: B65G51/06
Filed: 1945-09-24
Abstract: 599,765. Pneumatic transmission systems. LAMSON ENGINEERING CO., Ltd., and CLAYTON, A. T. Sept. 24, 1945, No. 24689. [Class 78(i)] A carrier of the pneumatic transmission type comprising, Fig. 1, an outer shell 4 with an opening 5, and an inner shell 6 fitted with an opening 7 and having a fixed ring 9 on which a plate 10 is rotatably coupled by means of bolts 12a, to buffer 13, is characterised by a ball 16 and spring 17 contained in a housing 15 fastened to the plate 10 so that an abutment 14 of the ring 9 is checked by.the ball 16 as it is rotated towards a stop 12b in closing the carrier and damage due to hasty closing of the carrier is avoided.
Patent GB-445514-A (GB)
Title: Process for the production of intensifying foils for x-ray photography
IPC: G21K4/00
Filed: 1935-09-05
Abstract: 445,514. Fluorescent screens. KALICHEMIE AKT.-GES., 10, Reichstagsufer, Berlin. Sept. 5, 1935, No. 24813. Convention date, May 2. [Class 98 (i)] Radiographic intensifying screens of the kind comprising a fluorescent material such as calcium tungstate coated with the aid of a binding medium on a backing sheet as of cardboard or celluloid provided with a substratum layer containing agents such as dyestuffs, which absorb light to which the photographic layer is sensitive, are characterized in that the fluorescent material employed has a grain-size substantially of the order 3 to 5Á. Reference is made to screens containing dyestuff or other light absorbing agent in the fluorescent layer itself.
Patent GB-241193-A (GB)
Title: Improved boiler furnace and method of firing same with pulverized fuel
IPC: A47C23/15
Filed: 1925-10-06
Abstract: 241,193. Furnace Engineering Co., (Assignees of Coutant, J. G.). Oct. 7, 1924, [Convention date]. Pulverulent-fuel burners. - A burner for pulverulent fuel is of curved form and is provided with louvres so that the air and pulverized fuel are separated by centrifugal force. The burner 9 is supplied with coal and air from the pulverizer 10, the coal being deflected towards the upper curved surface of the burner which directs it downwardly into the combustion chamber. Louvres 9<1> within the burner cause the air to be projected to the bottom of the furnace, where it absorbs heat from the floor 11 and rises to meet the falling pulverized fuel. Specifications 212,558, 230,444, and 232,562, [all in Class 51 (i), Furnaces and kilns, Combustion apparatus of], are referred to.
Patent GB-1377370-A (GB)
Title: Extrusion press and a method of extruding
IPC: B21C25/02
Filed: 1971-11-16
Abstract: 1377370 Extruding TEXAS ALUMINIUM CO Inc 16 Nov 1971 [16 Nov 1970] 24912/74 Divided out of 1377369 Heading B3P The description is identical with that of Specification 1,377,369, but the claims are directed to the indirect extrusion press with a multi-apertured die on a support with passages and to a method of extrusion using the press.
Patent GB-152201-A (GB)
Title: Device for phonographs
IPC: G11B17/02
Filed: 1919-10-11
Abstract: 152,201. Menchen, J. Oct. 11, 1919. Sound-boxes; suction cup for lifting records.- Records are lifted from a turntable by a rubber suction cup 14, 14<a> or 14<b> mounted either on a resilient swivelling arm 8, Fig. 3, which may be telescopic, or on the sound-box 4<b>, Fig. 8. In order to release the record, the suction cup may be provided with a vent-hole to be closed by the finger, on removal of which air leaks in through a ball valve. In the form shown in Fig. 7, a plunger valve is provided. When the cup is lowered on to the record bv pressing down the knob 24, the air-tight packing 25 closes the vent hole. When the knob 24 is released, air leaks in past the valve 21<a>. In the form shown in Fig. 8, the sound-box is rotatable on the tone arm and carries the suction cup 14<b> with it. The stem 16<b> of the cup passes through a. tubular lug 32 on a detachable ring 28 which fits round the drum 29 of the sound-box, and is held in position by an extension 33 with fingers 34 which embrace the stylus mounting 35. When turned down, the cup 14<b> serves as a cushion support for the soundboxes.
Patent GB-1352640-A (GB)
Title: Apparatus for automatically regulating a physical quantity by controlling a parameter of a liquid flowing along a conduit
IPC: F24F11/06
Filed: 1971-04-19
Abstract: 1352640 Fluid-pressure servo systems A SERRATTO 19 April 1971 [23 March 1970] 24921/71 Heading G3P A valve 3 controlling flow through a heat exchanger 2' has a double-acting servomotor Fig. 3, (not shown) of which one side is connected permanently to receive pressure p 3  intermediate the length of by-pass capillary 1' whilst the other side is connected to port 28 of a servovalve Fig. 4a and receives pressure p 1  (from port 26') or pressure p 2  (from port 26") according to which direction the servomotor is required to move by the servovalve. The servovalve is controlled by a temperature sensing bulb (18) connected to bellows 20. Rod 23 transmits bellows expansion to rocker 22 to cause clockwise rotation of the latter about valve ball 25", thereby unseating ball 25' to admit p 1  to the servomotor. When the bellows contracts, spring 24 can rotate the rocker about ball 25' to unseat ball 25" and admit p 2  to the servomotor. Cam 35 transmits feedback from the servomotor to the bellows via rocker 29, and cam 34 allows calibration. By-pass capillary 1' can be omitted, in which case p 3  is tapped from the water coil in the heat exchanger. The servovalve may respond to pressure or humidity in equivalent alternative systems.
Patent GB-170732-A (GB)
Title: Improvements in instruments for plotting and reading graphs
IPC: G09B29/10
Filed: 1920-08-30
Abstract: 170,732. Romer, C. Aug. 30, 1920. Curves, plotting.-An instrument for plotting and reading points with respect to rectangular axes comprises, a rectangular sheet marked along its edges with two pairs of scales to different units, such as inches and centimetres, the zeros of the pairs being at opposite ends of a diagonal and the graduations being marked in the negative direction. A second set of graduations may be marked as shown in brackets on the figure to increase the range of the instrument. The instrument may be divided into half-inch squares as shown. It may be made of cardboard &c. or of transparent material; in the latter case the graduations may be marked on the under surface. When made of cardboard &c. the instruments are cut to size before printing and printed singly upon a platen or similar machine.
Patent GB-1182938-A (GB)
Title: Cutting Insert for Chip Cutting Machining.
IPC: B23B27/22
Filed: 1967-05-31
Abstract: 1,182,938. Cutting inserts. SANDCO Ltd. 31 May, 1967 [1 June, 1966; 3 April, 1967], No. 25144/67. Heading B3T. A cutting insert comprises a polygonal member having top and bottom surfaces, at least one cutting corner and at least one cutting edge adjoining the corner, a longitudinal depression extending alongside the cutting edge on the top surface and a corner depression in the longitudinal depression, the longitudinal and corner depressions respectively forming main and secondary chip breakers. With a polygonal shaped member a plurality of cutting comers and edges may be formed with a main chip breaker along each edge and secondary chip breaker at each comer. In the embodiment shown in Fig. 10 the insert is triangular with a main chip breaker 23 and a secondary (corner) chip breaker 21. The chip breaking depressions may be spaced from the cutting edges and corners by a flat or bevelled land or they may be formed directly from the cutting edge or corner. Numerous embodiments are described with reference to Figs. 27-35 inclusive.
Patent GB-462671-A (GB)
Title: Improvements in and relating to parachutes
IPC: B64D17/00
Filed: 1935-09-10
Abstract: 462,671. Parachutes. NONAKA, S. Sept. 10, 1935, No. 25166. [Class 4] A parachute comprises a body portion 1 with an adjustable air-escape port, formed by a movable annular flap portion 2 connected by cords 6 to a central suspension cord 7 which is attached to a cord 8 extending across the flap portion. The cord 7 which is passed through a floating ring 10, a fixed ring 9 and again through the ring 10 is then connected to shroud lines 13 which are passed through a perforated eye-member 12 attached to the harness 11. With the parachute in the condition indicated by the unbroken lines in Fig. 2, the initial opening is effected by the expansion of the sail portion 1 to the position 1<1>, indicated by the chaindotted lines, with consequent movement ot the ring 10 towards the fixed ring 9. Subsequently the eye member 12 and the harness 11 assume the position indicated by the single chain-dotted lines, and when the pressure of the air within the parachute sail increases, the annular portion 2 tends to open to the position indicated at 2<1> to an extent determined by the resistance of the load applied through the suspension cord 7 and the cords 6. The extent to which the cord 7 is pulled by the shroud lines 13 is limited by the perforated eye-member 12.
Patent GB-507555-A (GB)
Title: Improvements in and relating to wind-driven electrical power installations
IPC: H02K11/04
Filed: 1937-09-16
Abstract: 507,555. Dynamo-electric generators; converting. LEAN, C. (Honnef, H.) Sept,. 16, 1937, No. 25203. [Classes 35 and 38 (ii)] In a wind-driven electric generator having pole systems of large diameter mounted directly on oppositely rotating wind wheels 2a, 2b, Fig. 1, the poles 4 of the inducing system are uniformly distributed and those of the induced system 3 are sub-divided into at least eight electrically independent groups I ... VIII which are separately connected to a discharge apparatus 5, Fig. 2, with a common load circuit 6 and are progressively displaced from the position of uniform distribution so that stepwise phase-displaced voltages are induced therein. To neutralize magnetic forces on the axle, diametrically opposite groups carry currents of the same phase and to this end, adjacent pole groups are displaced by 4#/n where n is the number of pole groups and is even. The windings carrying currents of the same phase are connected in series, the centre point being earthed and the free ends connected to the rectifier anodes. The ripple in the output voltage may be eliminated by means of a current transformer 7 feeding auxiliary apparatus in the installation, by the use of filters, or by connecting in series a compensating generator driven by a synchronous motor fed by an auxiliary winding on the wind generator. Fig. 6 shows an arrangement for converting the variable frequency current obtained into a current of constant frequency. For this purpose, the grids of the discharge apparatus 12 are normally biassed negatively by a battery 14 but are periodically connected to the positive terminal of a battery 21 through slip rings 15 connected to the segments of a commutator 16 and a commutator 18 having one or more conducting segments connected to the battery. The commutator 16 is driven by a synchronous motor 17 supplied by the wind generator and the commutator 18 by a synchronous motor 19 fed with current at constant frequency. The phase of the output can be changed by rotating the stator of the motor 19 as by a handwheel 23 or by shifting the brushes on one of the commutators.
Patent GB-586104-A (GB)
Title: Improvements in or relating to cathode-ray oscillograph tubes
IPC: H01J29/89
Filed: 1944-12-15
Abstract: 586,104. Cathode-ray tubes. STANDARD TELEPHONES & CABLES, Ltd. Dec. 15, 1944, No. 25210. Convention date, Dec. 20, 1943. [Class 39 (i)] [Also in Group XXXVI] A' cathode-ray tube is mounted inside a magnetic shield 10, Fig. 2, and the viewing screen is shielded from external light by an opaque tube 15 sliding within the magnetic shield. ' The latter has fixed to it a pin 13 which slides in a slot 18 in the light shield 15, Fig. 3, and a transverse notch 19 is provided to lock the light shield in its inward position. The light shield may be of metal and the cut 21 provides spring fitting within the magnetic shield. The cathode-ray tube is mounted in a chassis having front and rear panels 1 and 2 with the magnetic shield extending between them.
Patent GB-926690-A (GB)
Title: Improvements in or relating to concrete mixers
IPC: B28C9/04
Filed: 1961-07-12
Abstract: 926,690. Concrete mixers. E. WOLFF. July 12, 1961, No. 25273/61. Class 86. [Also in Group XXX] A concrete mixer has a rotating pan 26, Figs. 2 and 3, having a central discharge aperture 27 surrounded by a tubular member 28 which rotates with the pan. Into the annular mixing space thus formed depend from the framework of the machine to the bottom of the pan two stationary mixing members 73, and two baffles 63, 67 pivotable about vertical axes 62, 66, respectively. Depression of the handle 56 discharges the mixer by means of a linkage which simultaneously raises the chamber 28 to put the mixing space into communication with the discharge aperture and pivots the baffles 63, 67 from mixing to discharge positions, as shown, from the baffle 67 by the continuous and chain-dotted line positions of Fig. 2, whereby the mix is directed to the discharge aperture. Cement is fed by an endless band conveyer 99, Fig. 2, from a feed hopper 109 through a flexible tube 97 to a weigh hopper 88; aggregate by a scraper (not shown) attached to cable 121, a guide 127, and an endless band conveyer 113 to a weigh hopper 110; and water through pipes 83, 84. The conveyers 99, 113 are stopped automatically when predetermined quantities of material are present in the hoppers 88, 110 and the water is metered by a flowmeter 86 which controls the shut-off valve 85. There may be more than one conveyer as 113 for different grades of aggregate, operating in succession automatically. The discharge doors 128, 129, Fig. 3, of the aggregate hopper 110 are opened by the manually-operated lever 143, Fig. 2, and the discharge valve 92 of the cement hopper 88 by the lever 147. The cement and water are discharged into the pan on intersecting axes behind the baffle 63 to form a slurry which is covered immediately by material passing through a horizontal slot 64, Fig. 5, in the baffle 63, whereby the slurry is entrained at once in the mix and the presence of cement dust is avoided. The mixing members 73 extend along a chord of the pan and have additional blade parts 74 directed more radially, see Figs. 2 and 4. The angle of the mixing members to the wall of the pan may be adjusted by screws 78, Fig. 2. There may be more than two mixing members. The baffles and mixing members have rubber edge protectors 80, 81, 82, see Figs. 4, 5 and 6. In operation the pan is rotated at 50 r.p.m. and the mix is moved by centrifugal force to the outer wall where it is repeatedly re-directed inwards by the blades 73 and mixed by the blade portions 74. The mixing pan is carried in guides 9 on a frame 1 having transport wheels 2, 2<SP>1</SP>, 3, 31; as shown in Fig. 1, the mixing pan is in the operative position from which it may be lowered, together with the conveyers, into the travelling position by the crank handle 22. The mixer may be towed or self-propelled by an internalcombustion engine, which may also be used to supply power to the mixer and conveyers instead of the electric motors shown.
Patent GB-884954-A (GB)
Title: Phosphate coating solutions
IPC: C23C22/10
Filed: 1960-07-20
Abstract: A phosphate coating is formed on a ferrous surface by treating the surface at a temperature from room temperature up to 125 DEG F. with an aqueous solution having a pH of 4-6 and containing an alkali metal or ammonium phosphate and a bromate in concentrations of 0,6-2,0% PO4 and 0,01-0,15% BrO3.  The solution may also contain 0,2-3,0 mg/litre of ferric ions introduced, for example, as the nitrate or phosphate. The solution is replenished with a composition in which the ratio of bromate to phosphate is 2,8-8 times as great as the corresponding ratio in the initial solution.  The phosphate coated surface may be rinsed in a solution containing hexavalent chromium ions. Specification 714,321 is referred to.
Patent GB-840293-A (GB)
Title: Process for recovering flotation reagent
IPC: B03D1/001
Filed: 1958-08-07
Abstract: 840,293. Washing granular materials. UNITED STATES BORAX & CHEMICAL CORPORATION. Aug. 7, 1958 [Sept. 27, 1957], No. 25335/58. Class 82(2) In a process for separating components of a particulate mixture by means of an alkylamine salt reagent which adheres preferentially to the surfaces of one component, the reagent is released from the separated coated component by adding thereto an aqueous alkaline solution or an alkali metal or alkaline earth metal hydroxide in solid form. As shown, sylvinite ore is scrubbed in saturated brine in apparatus 12 to release the clay constituent which is removed with most of the brine by screw 14. The ore is then introduced into conditioner 20 (a rotating drum type of mixer) where it is treated in saturated brine with alkylamine salt reagent supplemented, if desired, by oil, and the conditioned ore is transferred to riffled, sloping table 24 which is subjected to shaking. Concentrated potassium chloride is collected at 25, middlings at 26 and tailings at 27. The middlings are further refined in flotation battery 30 after addition of frothing agent e.g. isocarbinol, the float concentrate 32 from which being combined with the concentrate at 25 and the tailings from which being combined with the tailings at 27 and disposed of at 36. The combined concentrate at 34 is de-watered in drag 136 and fed to mixer 40 in which it is mixed with alkali metal or alkaline earth metal hydroxide supplied from container 44. After treatment with the alkali, the concentrate is rinsed with brine supplied via line 46 and the mixture then delivered to centrifuge 50 for further washing and de-watering. The concentrate emerging from centrifuge 50 is dried in dryer 52 and screened at 54. The fines 58 are dissolved in water in dissolver 60 and supplied to mixer 40 and centrifuge 50 for use as washing brine. Released reagent is carried as a suspension in brine from mixer 40 at 68 and from centrifuge 50 at 69 and is delivered for re-use to conditioner 20 via line 74. The released reagent is neutralized in conditioner 20 to a PH of 7À2-7À8 by addition of acid (e.g. hydrocholric, phosphoric, sulphuric acetic or citric acid) from container 76. In a modification (Fig. 2, not shown), the released reagent is thickened before re-use. The reagent may be the salt of a primary alkylamine having a straight C8-22 alkyl chain and may be fully saturated or partially unsaturated, e.g. it may be derived from tallow, soya or coconut oil fatty acids, and may be supplemented by kerosene, crude oil or diesel oil. Reference is also made to the separation of (1) feldspar from silica, (2) phosphate rock from silica, (3) vermiculite from silicate or silica, and (4) mica and silica from beryl ores.