baber/WOPTO huggingface dataset:
Patent GB-488799-A (GB)
Title: Manufacture of derivatives of oestradiol
IPC: C07J1/00
Filed: 1937-01-16
Abstract: Mixed aliphatic-aromatic esters of oestradiol are prepared by reacting oestradiol of which one hydroxyl group is substituted with an aliphatic residue with an aromatic acylating or vice versa. Suitable acylating agents are the acids themselves, or their anhydrides, halides or esters formed with lower alcohols (re-esterification), and also the corresponding ketenes.  The aliphatic acids may be straight or branched chain saturated or unsaturated.  Acids mentioned include benzoic toluic, propionic, butyric, crotonic, valeric, caproic, oenanthic, caprylic, pelargonic, capric, lauric, myristic, palmitic and stearic acids. Substituted acids such as salicylic and lactic acids may also be used.  In examples: (1) oestradiol-3-monobenzoate is esterified in the presence of pyridine with propionic anhydride to give oestradiol-3-benzoate-17-propionate.  Instead of pyridine, dimethylaniline or quinoline may be used; (2) oestradiol-3-monopropionate is esterified with benzoyl chloride to give oestradiol - 3 - propionate - 17 - benzoate.  British Specifications 427,436 and 490,570, and U.S.A. Specification 2,033,487 are referred to.
Patent GB-769353-A (GB)
Title: Improvements in shaft-positioning control systems
Inventor: HATFIELD GEORGE I
IPC: G05D3/12
Filed: 1955-01-17
Abstract: 769,353. Electric selective signalling systems. BENDIX AVIATION CORPORATION. Jan. 17, 1955, No. 1405/55. Class 40 (1). Apparatus for setting a shaft in any one of a fixed number of angular settings comprises a selector switch consisting of rotors 32, 33, cooperating with fixed contacts 38 to 42 and 43 to 47 respectively, which is connected as shown to the follower switch consisting of rotors 36, 37 co-operating with fixed contacts 48 to 52, and 53 to 57 respectively. Normal wafer-type switches are used, in the example shown, having fourteen positions. Rotor 32 is continuously earthed at 58 and rotor 37 makes continuous contact at 61 with a relay coil 62 controlling a motor 59, which drives the follower switch when the positions of the two switches are not in correspondence, the circuit being broken when correspondence is reached. The rotors 32, 36 are identical, as are rotors 33, 37, the rotors 32, 36 being complementary to rotors 33, 37. In order to provide twenty-eight switching positions on the fourteen-position switch, a detenting mechanism 67 having a dial 65 with twenty-eight indentations marked with the corresponding numerals is provided. Design procedure for the switch rotors is described, different permutations for the odd positions 0 to 27, and the even positions 2 to 28 being calculated, and two corresponding templates made, Figs. 5 and 6 (not shown), and superimposed in interleaved fashion to provide switch rotors as shown in Fig. 1. In operation each conductor A ... E is either earthed or connected to all other unearthed conductors and for certain switch positions the control signal is conducted from the selector to the follower, back to the selector, and finally returned to the follower. An arrangement giving eight switching positions on a standard twelve-position wafer switch, using four inter-station conductors, is also described, Fig. 7 (not shown). Specification 660,939 is referred to.
Patent GB-1012522-A (GB)
Title: Improvements in or relating to synthetic multifilamentary yarns or threads
IPC: D01D10/04
Filed: 1963-01-11
Abstract: Yarn is made by longitudinally advancing a non-twisted 15-2100 denier tow or bundle of manmade, parallel, continuous filaments of 1.5-15 individual denier along a straight path (as may be defined by two fixed ring or forked guides) adjacently is a smooth, convex, stationary surface e.g. a cylindrical or partly cylindrical surface as may be provided by a rod, and directing a gaseous jet across e.g. at right angles to, the tow path.  The tow is deviated from its path under the impact of the jet and slidably progresses on the convex surface.  The individual filaments of the tow intersect to form entanglements (so-called "false-knots" or "knot-clusters") which impart inter-filament cohesion, thus producing an effective yarn.
Patent GB-549385-A (GB)
Title: An improved scaffold clamp
IPC: E04G7/24
Filed: 1941-04-15
Abstract: 549,385. Scaffold clamps. MANN, W. G., and STEEL SCAFFOLDING CO., Ltd. April 15, 1941, No. 1480/42. Divided out of 549,359: [Class 20 (ii)] A scaffold clamp comprises a U-shaped main body member 1 adapted to embrace a scaffold tube 2, upstanding projections 3, 4 with ends twisted at an angle of 45 degrees to the body of the clamp and disposed at opposite sides and ends of the main member, a hinged clamping cap 6 disposed at an angle of 45 degrees to the axis of the main member, and with its under face grooved to receive a tube 2a disposed with its axis either parallel to or at right angles to the axis of the tube 2, and a pad 11 with its upper and lower faces grooved to receive the tubes 2, 2a disposed between the tubes. The pad is linked to the side of the main member so that it can be swung aside to allow the tube 2 to be placed in the main body member. The clamping is effected by a bolt 7 pivoted to the projection 4 entering the bifurcated end 10 of the clamping cap which is pivoted to the other projection 3 of the U-shaped member. The bifurcated end of the cap may be provided with ridges 8 to prevent slip of the nut of the bolt 7.
Patent GB-1413442-A (GB)
Title: Sludge heat treatment apparatus
IPC: C02F11/18
Filed: 1974-01-14
Abstract: 1413442 Heating sludge by contact with steam G NAKAMURA 14 Jan 1974 [10 March 1973] 01626/74 Heading F4K Industrial or sewage sludge is heat treated by direct contact with stream by passing the sludge (e.g. in the form of plugs) and steam together through a pipe 12 which terminates within a vessel 10 and has at its outlet end a perforated mouthpiece (e.g. a perforated plate) 13, Fig. 2 or 16, Fig. 3, whereby the sludge plugs are extruded as thin strings together with the steam, into the vessel 10 from which the heated sludge is removed at 14. The upper end of the pipe 12 may comprise an expanded-area passage member 17 as shown in Fig. 3.
Patent GB-497891-A (GB)
Title: Improvements relating to combined adapters and switches
IPC: H01R13/70
Filed: 1938-01-18
Abstract: 497,891. Two-part couplings combined with switches. RAFT, G. Jan. 18, 1938, No. 1700. Convention date, Feb. 13, 1937. [Class 38 (i)] A branched adapter is fitted with a rotary ratchet-operated switch by which either or both of the appliances connected to the branches may be switched on or off. The body 7 is divided longitudinally and forms a plug 8 to fit a bayonet supply socket and two sockets 9, 10 to receive lamps or couplings. One of the contacts 14 of the plug 8 is connected by a strip 15 to one contact of each of the sockets 9, 10. The other contact 14 of the plug 8 is attached to a fixed plate 18 having a circular portion forming a back plate for the rotary switch member 21 that turns on a spindle 20. The plate 18 carries pawls to prevent reverse movement of the switch. The switch member 21 contacts in certain positions with either or both of the spring contacts 16, 17 of the sockets 9, 10 and is moved to four positions by an oscillating plate 23 actuated by a pull cord 25 and a return spring and carrying a pawl to engage the switch member 21.
Patent GB-1589488-A (GB)
Title: Printing machine cylinder and bearer ring
IPC: B41F13/21
Filed: 1978-01-17
Abstract: To avoid irregularities in the construction of a bearing ring, due to which reflections occur which lead to damage to the bearing ring on the occurrence of impact loads, uneven places are avoided in the bearing ring according to the invention. A bearing ring (25) is mounted with its conical central bore (27) on a conical part (29) of the drive shaft (11) of the printing unit cylinder (3). At several places on its circumference, the part (29) of the shaft bears oil grooves (31) which are connected via bores (33) to a source of compressed oil. The bearing ring (25) is connected to the part (29) of the shaft by a retaining washer (35) and by a screw (37). By means of the source of compressed oil, the bearing ring (25) can be mounted on the part (29) of the shaft and removed again if required. <IMAGE>
Patent GB-346840-A (GB)
Title: Mains-operated voltage amplifier
IPC: H04B1/16
Filed: 1930-01-20
Abstract: 346,840. Valve amplifying circuits. LOEWE, S., 10, Wiesenweg, Steglitz, and ARDENNE, M. VON, 19, Jungfernstieg, Lichterfelde Ost, both in Berlin. Jan. 20, 1930, No. 1895. Convention date, Jan. 22, 1929. Drawings to Specification. [Class 40 (v).] In an amplifier in which the anode voltage is derived from stepped-up rectified and filtered alternating voltage, a high degree of voltageamplification is attained in the valve preceding the power valve by the use of a high anode potential (such as 1000 or 2000 volts) together with a valve having a high amplification-factor (such as 2000), the plate-circuit resistance being of the order of 10 megohms. As a safeguard against shocks to the person, a resistance of the order of 1 megohm is inserted between the high-voltage terminal and the smoothing condensers of the supply unit. The power-amplification stage may be supplied at the normal voltage through a separate supply unit.
Patent GB-552794-A (GB)
Title: Improved means for the grid control of ionic valves
IPC: H02M1/04
Filed: 1942-02-16
Abstract: 552,794. Converting. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Feb. 16, 1942, No. 2039. Convention date, Feb. 28, 1941. [Class 38 (ii)] The grids 2 of a gaseous electric discharge device such as a rectifier or inverter 1 are supplied with steep-fronted voltage impulses from a circuit comprising electronic discharge paths 4 in series with resistances 5 across a D.C. source 6, the discharge paths being controlled by two grids to which phase-displaced A.C. voltages from sources 7, 8 are applied. The grids may be in a single tube as shown, or one in each of two series-connected tubes. Alternatively there may be connected in series with each of the resistances 5 two electronic discharge paths in parallel either in the same or in separate tubes, and controlled by separate grids to which phase-displaced voltages are applied. To improve deionization conditions in the main discharge device 1, the electronic discharge devices 4 and resistances 5 may be interchanged with respect to the polarity of the D.C. source, or auxiliary discharge devices which are blocked when the devices 4 are conducting may be connected in parallel with the resistances 5 or directly between the grids 2 and the negative terminal of the source 6.
Patent GB-1164201-A (GB)
Title: Shaft-Sealing Arrangements for Turbomachines having Gaseous Working-Medium Heated in a Nuclear Reactor
IPC: F01D11/04
Filed: 1967-01-13
Abstract: 1,164,201. Shaft seals. ESCHER WYSS A.G. 13 Jan., 1967 [14 Jan., 1966], No. 2057/67. Heading F2B. [Also in Divisions F1 and G6] The shaft 9 of a turbo-machine of a closed cycle thermal power plant in which a gaseous working pressure medium, e.g. helium, is heated in a nuclear reactor 1, expanded in a turbine 3 and recompressed in a turbo-compressor 5 is sealed by means including a labyrinth gland 12<SP>1</SP>, 12<SP>2</SP>, having a chamber 13<SP>1</SP>, 13<SP>2</SP> connected by a conduit 15 including an isotope separating device 16 to a point 14 of the working space of the compressor whereby purified working medium is supplied as sealing medium to the gland. The glands 12<SP>1</SP> and 12<SP>2</SP> are located between the turbine and a shaft bearing 10<SP>1</SP> and between the compressor and a shaft bearing 10<SP>2</SP> respectively and the sealing chambers 13<SP>1</SP> and 13<SP>2</SP> are disposed between further chambers 17<SP>1</SP> and 20<SP>1</SP> and 17<SP>2</SP> and 20<SP>2</SP>. The chambers 17<SP>1</SP>, 17<SP>2</SP> are connected by a conduit 18 to a point 19 of the compressor at a lower pressure than the point 14 and the chambers 20<SP>1</SP>, 20<SP>2</SP> are connected by conduits 21 and 22 to a point 23 on the low-pressure side of the working-medium circuit. A lubricant container 24 is inserted between the conduits 21 and 22 and oil is pumped therefrom by a pump 27<SP>1</SP> to the bearings 10<SP>1</SP>, 10<SP>2</SP> via a conduit 27. The shaft is further sealed at the turbine end by a labyrinth gland 30 separated from the bearing 101 by a chamber 29<SP>1</SP> and having a chamber 31 supplied with nitrogen from a source 32. In use, radioactive helium extracted from the compressor and purified in the separator 16 is supplied to the chambers 13<SP>1</SP>, 13<SP>2</SP>. Part of this pure helium flows to the chambers 17<SP>1</SP>, 17<SP>2</SP> and is returned to the compressor at point 19 and part flows to the chambers 20<SP>1</SP>, 20<SP>2</SP> where it mixes with the oil escaping from the bearings 10<SP>1</SP>, 10<SP>2</SP> and passes to the container 24 where the oil is separated out, the pure helium being returned to the circuit at point 23 after passing through an oil-vapour separator 25. Oil, nitrogen and any traces of pure helium collecting in the chamber 29 are separated out in a separator 35. In a modification, Fig. 2 (not shown), the compressor has two stages (5<SP>1</SP>, 5<SP>2</SP>) separated by a shaft bearing (10<SP>3</SP>).
Patent GB-265364-A (GB)
Title: Improvements in fluid distributors
IPC: F16L41/03
Filed: 1926-01-25
Abstract: 265,364. Carver, T. A. B. Jan. 25, 1926. Junction pieces. -Lubricant or other fluid supplied through a pipe G to a vertical hole B in a cylindrical member A is distributed equally to a number of pipes H leading from holes C spaced equally around the central hole B through slots D of equal depth and width, the width of the slots being such that the sides thereof meet in vertical lines on the surface of the hole B, whereby adjacent slots are separated by knife edges E. The lower end of the member A is screw-threaded to receive a cap which fits closely over the top of the member.
Patent GB-1446141-A (GB)
Title: Cinnamamides and hydrocinnamides and processes for their preparation
IPC: C07C233/33
Filed: 1974-01-16
Abstract: 1446141 Cinnamamides and hydrocinnamamides KISSEI YAKUHIN KOGYO KK 16 Jan 1974 [18 Jan 1973] 02102/74 Heading C2C The invention comprises cinnamamides and hydrocinnamimides of the Formula I wherein R 1  and R 2  each are H or C 1-4  alkyl; R 3  and R 4  are H or may be combined together to form another carbon to carbon bond; each X is OH, halogen, C 1-4  alkyl or C 1-4  alkoxy; and n is 1 to 3, or (X) n  may also constitute where a and b are 0 or 1 and c is 2 to 10 wherein the said group is attached to adjacent carbon atoms of the benzene ring to form a ring, and pharmaceutically acceptable salts thereof, and their preparation. The compounds are prepared by reacting the appropriate cinnamic acids or hydrocinnamic acids or reactive functional derivatives thereof with the corresponding aminobenzoic acids or esters thereof, and, if necessary, hydrolysing the resulting products. Compounds of the Formula I above in which R<SP>3</SP> and R<SP>4</SP> are combined together to form a carbon to carbon bond may also be prepared by halogenating hemi esters of malonic acid, reacting the resulting 2-(haloformyl)acetic acid esters with aminobenzoic acids or esters thereof, hydrolysing the resulting products, and condensing the resulting N-(carboxyphenyl)malonamic acids using the Knoevenogel reaction with benzaldehydes of the Formula X 4 - (4 - Acetoxycinnamoylamino)benzoic acid and 3 - (4 - acetoxy - 3 - methoxycinnamoylamino)benzoic acid are obtained by reacting the appropriate cinnamoyl chlorides with the corresponding aminobenzoic acids. Methyl N - (3,4 - dimethoxycinnamoyl)- anthranilate is prepared by reacting methyl anthranilate with 3,4-dimethoxycinnamic acid. Pharmaceutical compositions, suitable for oral or parenteral administration, contain the above acids or salts thereof in admixture with pharmaceutically acceptable carriers or diluents. The compounds possess antiallergic activity.
Patent GB-397378-A (GB)
Title: Improvements in and relating to verdol papers
IPC: A47B39/12
Filed: 1933-01-23
Abstract: 397,378. Loom pattern cards &c. NEHER AKT.-GES., R. V., Kreuzlingen, Switzerland. Jan. 23, 1933, No. 2214. Convention date, Sept. 28, 1932. [Class 142 (i).] A Verdol paper, band, or the like is coated on one or both sides with metal foil, such as aluminium foil, whereby the changes due to the variations in the moisture of the air are reduced.
Patent GB-957001-A (GB)
Title: Improvements in, or relating to, refuse collectors
Inventor: WHEELER LESLIE STEPHEN
IPC: B65B67/12
Filed: 1962-01-22
Abstract: 957,001. Sack-holders. ARTHUR SHAW & CO. Ltd. Jan. 22, 1963 [Jan. 22, 1962], No. 2333/62. Heading B8C. A sack-holder comprises a sleeve 1 to which are attached brackets 8, 9 which support a lid 2 and a receptacle 3. The holder is intended for use with a dispensable sack, to be filled with refuse, which is clamped to the sleeve 1 by adjustable resilient bands 7 and 6 (not shown), the receptacle 3, which is fixed to lid 2, providing a temporary housing for hot materials such as cinders and ash until they are cool. An aperture 2b in lid 2 provides access to receptacle 3 and is closed by a door 20 rotatable about a plunger 5. A frusto-conical closure 4 attached to plunger 5 is raised thereby to allow discharge of the contents of receptacle 3 into the sack. The lid 2 is hinged to flange 8b of bracket 8 and diametrically opposite overhangs a stud 11 housed in a pillar 12 which projects vertically upwards from a supporting base (not shown). Since the receptacle 3 is liftable with the lid, refuse may be deposited directly into the sack through the holder.
Patent GB-937000-A (GB)
Title: Liquid dispensing apparatus
Inventor: REAST NORMAN
IPC: G05D11/03
Filed: 1961-01-20
Abstract: 937,000. Dosing apparatus. BARROW HEPBURN & GALE Ltd. Jan. 19, 1962 [Jan. 20, 1961], No. 2430/61. Class 86. In a device for dosing water in a tank 9 with reagent contained in a dispensing chamber 3, the reagent is maintained at a constant level in the dispensing chamber by a gravity feed tube 2 from a reservoir 1; reagent flows into the dispersing chamber whenever the level therein falls sufficiently to uncover the bottom of an air tube 14. When the tank 9 is refilled, air is compressed in the bell 13 and pipe 12, deflecting the diaphragm 23 in the valve 11 to close the vent 25; the increased pressure is then transmitted through the restricted passage 24 and pipe 10 to the space over the reagent in the dispensing chamber, causing rise in level in the bell 6 and overflow of reagent down the tubes 7, 8. When pressure has thus become equalized in the pipes 10, 12 the vent 25 opens so that the liquid in bell 13 and dispensing chamber 3 is under atmospheric pressure ; the level in bell 4 now falls below the end of air tube 14. The air tube has a restriction 16 to prevent surging and a chamber 15 to prevent reagent introduced into the tube when the apparatus is charged being drawn through the tube.
Patent GB-399067-A (GB)
Title: Improvements in or relating to motor vehicles
IPC: B62D61/08
Filed: 1933-01-26
Abstract: 399,067. Steering motor vehicles. STEVENS BROS. (WOLVERHAMPTON), Ltd. and STEVENS, H., Retreat Street, Wolverhampton. Jan. 26, 1933, No. 2489. [Class 136 (i).] In steering - mechanism for three - wheeled motor vehicles of the type having a front steering-wheel mounted in a spring fork, a sprocket wheel 7 is fixed to the stem of the spring fork on the outside of the front screen 18, and is connected by a chain 17, passing through the screen 18, to a sprocket wheel 16 mounted on the vehicle frame and rotated by means of a hand-wheel &c. 10. The sprocket wheels and chain 17 may be duplicated as shown in order to increase reliability. The double sprocket wheel 7 is secured by studs to bosses on a cross-member on the upper end of the fork stem. The double sprocket 16 is fixed to a tube 11 rotating with the hand-wheel 10 about a tubular stem, which is secured to a frame tube 4 by a clip 13, the position of which may be adjusted to tighten the chains 17. A nut on the lower end of the tubular stem clamps the stem to the clip 13 and the clip to the frame tube 4.
Patent GB-820567-A (GB)
Title: Improvements in or relating to methods of and apparatus for detecting the presence of carbon dioxide in a gas, for example in air
IPC: G01N31/22
Filed: 1956-01-25
Abstract: Carbon dioxide is detected in a gas by passing the gas through an indicator tube containing hydrazine and a reduction-oxidation indicator supported on a granular carrier, the presence of carbon dioxide causing the reagent to change colour.  The reduction-oxidation indicator may be a triphenylmethane dyestuff, e.g. methyl violet, and may be dissolved in a polyvalent alcohol, e.g. glycol or glycerine.  In an example the carrier is calcium aluminium silicate.  The amount of carbon dioxide present may be estimated from the length of the colour change in the tube.  The carbon dioxide content of flue gas or the air in coal mines may be measured; the test is also of use in the manufacture of silage, coal gas, or carbon dioxide itself, and in the fermentation of beer.
Patent GB-371879-A (GB)
Title: Improvements in or relating to apparatus for heating the bodies of mechanically propelled vehicles
IPC: B60H1/08
Filed: 1931-01-26
Abstract: 371,879. Heating-apparatus associated with motor systems. CLAYTON DEWANDRE CO., Ltd., Titanic Works, Lincoln, and PAYNE, Mr., 50, Hook Road, Surbiton, Surrey. Jan. 26, 1931, No. 2519. [Class 79 (iii).] Relates to heating-apparatus on motor vehicles of the kind in which a radiator or system of radiators located in the vehicle body is connected to the flow conduit leading from the engine cooling jacket to the ordinary cooling radiator and in which the proportionate divergence of flow to the heating and cooling radiators is regulated by a thermostatically controlled valve, in the flow conduit, operated by a bellows or other expansible chamber. The invention comprises, in one form, Fig. 1, an arrangement wherein the expansion chamber 2 of the thermostatic valve 1 is located in the flow conduit 3 and the body heating radiator 7 is directly connected by a conduit 6 to the valve chamber, the return conduit 8 of the heating radiator being connected to the conduit 3 between, the valve and the ordinary cooling -radiator 5, or, as shown, to the return pipe 9 from the cooling radiator to the engine. In an alternative form, Fig. 3, the valve 11 is operated through linkwork 15 by a bellows 14 in an external chamber in communication, with a sealed vessel 12 in the vehicle body, an expansible fluid in the vessel 12 acting on the bellows 14 in accordance with the body temperature. In either case the circulation may be forced by a pump 10.