baber/WOPTO huggingface dataset:
Patent GB-603640-A (GB)
Title: Improvements in and relating to combustion turbine plants
IPC: F02C3/28
Filed: 1945-07-18
Abstract: 603,640. Gas turbines. AKT.-GES. BROWN, BOVERI, & CIE. July 18, 1945, No. 18445. Convention date, Aug. 24, 1944. [Class 110 (iii)] In a gas-turbine plant in which the fuel gas is provided by a gas-producer 7, the pressuredrop in the gas-producer is balanced in the combustion air line by the pressure-drop in an exhaust gas heat-exchanger 2. The supply of fuel to the combustion chamber is regulated by a valve 9 controlled by a speed governor 10 and the valve is arranged to be partly closed under normal working conditions. In a twostage plant with reheating, the fuel for the re-heating combustion chamber is supplied by a second gas-producer receiving air from between the compressor stages, or, working fluid tapped from a turbine stage. The lowpressure turbine and compressor set is separately governed and the governor controls the supply of combustion air to the second gas-producer In addition to the useful employment of the pressure-drop in the combustion air line, the pressure of the air supply to the gas producer may be boosted by an additional stage to the air-compressor.
Patent GB-771607-A (GB)
Title: Machine for locating points on a surface
Inventor: HARDY ROBERT
IPC: B43L13/02
Filed: 1954-06-23
Abstract: 771,607. Mathematical drawing-appliances. NAPIER & SON, Ltd., D. June 7. 1955 [June 23, 1954], No. 18472/54. Class 97(3) A machine for locating points on a plane surface with reference to two co-ordinating axes comprises a first guide member having a straight guide element which may be arranged parallel to one co-ordinate axis, a first carriage arranged to cooperate with the guide element for linear movement thereon and connected to a second guide member having a second straight guide element arranged parallel to the other co-ordinate axis and a second carriage co-operating with the second guide element and provided with means for locating a point on the plane surface, and includes a manually operated gear attached to each carriage and arranged to co-operate with a toothed rack fixed in relation to the respective guide element, and means for disengaging the gear from the rack. As shown in Fig. 1, a base-plate 1 is clamped to the top edge of a drawing board 3. Mounted on the plate 1 are a tubular guide 4, a toothed rack 6, and a replaceable scale 7. A carriage 10 has rollers 11, 12 engaging the tubular guide 4. The carriage 10 may be moved along the tubular guide 4 by a pinion operated by means of a handle 15. This pinion may be disengaged so that the carriage may be moved by hand. A lens 13 enables the scale 7, illuminated by a lamp 14, to be observed for setting the carriage. The carriage may be held in adjusted position by friction clamp A second supporting plate 25 is rigidly fixed at right angles to the first carriage 10, and has at its end a roller 26 engaging a metal track 27 secured to the lower edge of the drawing board 3. A second carriage 30 has two pairs of spaced rollers 31, 32 engaging a guide tube 29 mounted on the plate 25, while a further roller 33 on the carriage 30 engages a second guide 28 parallel to guide 29. A handle 39 controls a rack and pinion mechanism for moving the carriage, similar to that used for moving the carriage 10, an illuminated scale and lens also being provided. A projection 45 on the carriage 30 carries a sector 46 which is spring urged into two alternative positions. In one position a spring-loaded plotting plunger 48 is operative, in the other position an eye piece 47 provided with hairlines takes the place of the plotting plunger 48. Additional scales 60, 61 each comprise an endless flexible steel belt supported on spaced rollers. In order to plot points from supplied co-ordinate data, the scales are set in accordance with the zero of co-ordinance and the carriages are adjusted. The plunger 48 is brought into operative position and depressed to mark each point as the carriages are set. To plot the co-ordinance of points on a given drawing, the lens 47 is brought into operation.
Patent GB-535889-A (GB)
Title: Improvements in and relating to the treatment of rubber
IPC: C08C19/28
Filed: 1939-06-26
Abstract: 535,889. Resinous condensation products. BRITISH RUBBER PRODUCERS' RESEARCH ASSOCIATION, and FARMER, E. H. June 26, 1939, No. 18524. [Class 2 (iii)] Refers to Specification 507,996 and consists in combining rubber with polyhydric alcohols such as glycols, amines or amino compounds, e.g. tetramethylene diamine, unsaturated fatty acids, e.g. oleic or linoleic acids or their esters, or castor oil, by reaction with maleic anhydride at elevated temperatures. Generally, the rubber-like anhydride derivative is first obtained, as in the prior Specification, and then reacted with glycol &c. conveniently in solution, but the product may also be obtained in a single stage. The two-stage process may be applied also to single compounds. Examples are given of two-stage processes wherein the rubber-maleic anhydride derivative is further reacted with (1) glycol and (2) tetramethylene diamines, and of single-stage processes wherein rubber and maleic anhydride are reacted with (3) castor oil and (4) methyl linoleate. The products are generally thermoplastic, resinous substances.
Patent GB-348435-A (GB)
Title: Improvements relating to the drilling of bore holes
IPC: E21B10/26
Filed: 1930-06-19
Abstract: 348,435. Borehole apparatus. ATKINSON, T. F., 23, Moreton Avenue, Stretford, Manchester.-(Atkinson, A. E. ; Bungalow 43, Chauk P.O., Magwe, Upper Burma, India.) June 19, 1930, No. 18722. [Class 85.] In the drilling of oil wells, combined reamers and guides are provided in the drill pipe and have passages for the return flow of flushing fluid. Pipe sections a have guide rings d secured thereto by spokes e, leaving passages f for the flushing fluid ; the rings d have upper and lower cutting edges g formed as by welding &c. tool &c. steel thereto. Preferably four such fittings are provided in the drill pipe spaced at increasing intervals as they become more remote from the drill bit.
Patent GB-896229-A (GB)
Title: Improvements in or relating to magnetically controllable contact sets
Inventor: BERGSTRAESSER GEORG
IPC: H01H51/28
Filed: 1960-05-27
Abstract: 896,229. Electromagnetic switches; electrically-released switches; contact-members for switches. TELEFONBAU UND NORMALZEIT G.m.b.H. May 27, 1960, No. 18800/60. Class 38 (5).  Substantially plane magnetic contact members are formed so that contact engagement on magnetization is due to relative movement in their own plane. In Fig. 4, the contact members 1, 2 have oblique contact faces 3, 4 and member 2 is recessed at 5 so that its end moves in the direction of the arrow and slides along the face 3. A number of the contact sets may be stacked together, each set secured in an insulating housing 8 (Fig. 5) which may be filled with gas. The contact faces 3, 4 may be slotted (Fig. 8, not shown) and as shown in Fig. 9 two sets may be mounted in a common capsule 22, the movable members repelling each other on magnetization. The recesses in the contact member or members may give the member a generally sinusoidally shaped part and the two contacts may be slightly off-set (Figs. 10, 11, not shown). Fig. 12 shows a contact member shaped so as to experience uniform bending stress. In Figs. 13 and 14 respective change-over contacts 33, 46 are arranged to disengage faces 39, 41 and 51, 52 and engage faces 37, 40 and 50, 53 on magnetization. One or more contact sets may be arranged so that the contact ends bridge a gap in a magnetic circuit having an energizing coil either surrounding the contacts or another part of the circuit (Figs. 15, 16, not shown). A number of housings 103 (Fig. 17) each containing a contact set 101, 102, may be assembled with the narrow edges of their walls cemented together to form a single gas-filled chamber with closure members (not shown) at the ends. As shown in Figs. 21, 22 and 26 a number of contact sets 201, 202 each embedded in a flat insulating member 205 may be mounted sideby-side with end members 210. This assembly constitutes a former for a coil 204, with the ends 207 of the contact member 201, 202 in close proximity to the bent-over ends 225 of a magnetic shell 219. The insulating members 205 may be spaced apart by similar members 227 (Fig. 26) having magnetically conductive inserts 226 which project at 231 to engage the ends 225 and extend to the contact area. Electricallyconductive members in the vicinity of the contacts may be arranged to delay the response and the contact members may be made of remanent magnetic material requiring reverse magnetization to effect contact opening.
Patent GB-1473411-A (GB)
Title: Rotary positive displacement pump
IPC: F04B43/00
Filed: 1974-04-30
Abstract: 1473411 Rotary positive-displacement pumps NIKKISO EIKO CO Ltd 30 April 1974 [1 May 1973 16 Nov 1973 3 Dec 1973 13 Feb 1974]  18930/74 Heading F1F A rotary positive-displacement pump comprises a flexible pump chamber unit 12 with internal and external sleeves 14, 16 inter-connected by partitions 18, an eccentric 24 of shaft 26 being rotatably received within the internal sleeve 14 so that rotation of the shaft causes sequential contraction and expansion of the pump chambers 20 to pump fluid from an inlet 38 to an outlet 40 via ports 34, 36 in end-plates 30, 32. Alternate forms of flexible partition are described, Figs. 3a, 3b (not shown), and the manner in which the pump chamber unit can be built up from individual segments is also disclosed, Figs. 4, 5 (not shown). Each port in an end-plate may have a check-valve, and each or both end-plates may be movable axially against spring or magnetic bias to relieve excess pressure in the pump unit, Figs. 6, 7, 8 (not shown). The side plates may rotate with the shaft thus bringing their respective ports into sequential communication with the chambers, or stationary end-plates may co-operate with rotary plates which sequentially uncover ports in the stationary plates, Figs. 13 to 18 (not shown). Other combinations of rotary and stationary plates can be used, there are also magnetic means for causing the internal sleeve of the unit to orbit, the external sleeve can be moved about a fixed inner sleeve to vary chamber volume, and multi-unit pumps may be used, Figs. 19 to 33 (not shown).
Patent GB-1188347-A (GB)
Title: Preservation of Semen
IPC: A01N1/02
Filed: 1967-04-25
Abstract: 1,188,347. Semen diluters and preparations. TAKEDA YAKUHIN KOGYO K.K. 25 April, 1967 [28 April, 1966; 8 June, 1966], No. 18994/67. Heading A2D. The activity of semen preparations for artificial insemination of livestock (e.g. cattle, goats and sheep) comprising semen and diluter, is maintained or enhanced by incorporating therein 0.001 to 0.1 g/100 ccs of the preparations, an unsymmetrical thiamine organic disulphide derivative: where R is a substituted or unsubstituted alkyl group; a thiamine derivative: where R 1  and R 2  may be the same or different and represent carboxylic acid acyl group or carboalkoxy group or taken together a cyclocarbo group >C = o and a bisthiamine disulphide derivative: where R is H or a carboxylic acid acyl group; a salt thereof or mixtures thereof. The thiamine derivative may be added to the diluted semen preparation or to the semen diluter before adding it to the semen. The derivative may be added to preparations which have been stored or are to be stored in a frozen condition. The derivative may be thiamine tetrahydrofurfuryl disulphide, thiamine allyl disulphide, thiamine 2-hydroxyethyl disulphide thiamine (7-methoxycarbonyl-3- acetylthioheptyl) disulphide, thiamine propyl disulphide, O, S dibenzoyl thiamine, O, S-diacetyl thiamine, S-acetyl thiamine O-monophosphate, O, S-dicarboethoxy thiamine, O, S-cyclocarbothiamine, bisthiamine disulphide, O-benzoylthiamine disulphide or the acid (e.g. hydrochloric or nitric acid) salts thereof. The diluter may comprise egg yolk, sodium citrate or phosphate buffer, glycerin, lecithin, whole milk, skim milk, casein, fructose, and amino acid.
Patent GB-190874-A (GB)
Abstract: 190,874. Vulcan Stove Co., Ltd., and Fricker, E. H. Nov. 18, 1921. Atmospheric gas burners; burners, attaching and mounting.-In atmospheric gas burners for gas fires, gas cookers, and the like, of the type comprising a burner member having a mixing- tube or chamber, and a separate gas nipple, the burner member is supported at a point forwards of the open end of the mixing-tube or chamber by a bracket or the like, which engages with an abutment or other means upon the burner member, and the open end of the mixing-tube or chamber is supported by a sleeve, collar, disc, or other member adjustably mounted and supported upon the gas nipple, and adapted to cause the abutment on the burner member to engage with the bracket. In one form, a burner member 6 is provided with a stepped projection 10 which fits in a recess 11 in a bracket 9 carried by the stove, and the flared end 8 of the mixing-tube is supported by the preferably inclined ends of three equidistant arms 5 on a collar 4 screwed on an externally screw-threaded horizontally disposed gas nipple 3, connected through a gas cock 2 to a supply pipe 1. The collar may be locked in position by means of a set-screw 12. The airsupply is regulated by an adjustable disc 13. The collar may be replaced by a disc 4 provided with air-inlets 14, as shown in Fig. 6. In a second form, the collar 4 and disc 13 are slidably mounted on a plain nipple and provided with setscrews. The set screw 12 may extend through a slot in the flared end 8 of the mixing-tube.
Patent GB-705708-A (GB)
Title: Adjustable or controllable orifice unit especially for gauging apparatus
IPC: G01B13/00
Filed: 1951-08-14
Abstract: 705,708. Gauging-apparatus. SHEFFIELD CORPORATION. Aug. 14, 1951 [Aug. 17, 1950], No. 19114/51. Class 106 (2) A device for use in gauging apparatus comprises a body 15, Fig. 2, containing a sleeve 14 clamped in position by a screw 20 and supporting a slidable member 10, the outer end of which forms a feeler 13 and the inner end a valve closure member 12 co-acting with a seat sleeve 27 to control flow from a line 34 to an outlet 36. The member 10 is urged by a spring 30 away from the seat sleeve. Line 34 is connected to an indicating gauge 38, e.g. of the type shown in Fig. 5 and described in Specification 654,720, two devices 15, being mounted on a plate 41 to gauge the profile of a work piece 50, the plate being positioned against a stop 51 which has a predetermined relationship with the work piece. Each device is set up to indicate maximum and minimum tolerances on its indicating gauge by holding spacers 63, 64, Figs. 7, 8, one after the other between the sleeve and feeler, and pressing the feeler thereagainst.
Patent GB-1511642-A (GB)
Title: Optical systems for missile fuses
IPC: F42C13/02
Filed: 1961-05-30
Abstract: 1511642 Fuzes DE HAVILLAND AIRCRAFT CO Ltd 30 May 1961 [30 May 1960] 19126/60 Heading F3A A fuze optical system for mounting transversely in the body 10 of a missile comprises two annular plates 14 connected by four arms 16. Infra-red radiations to which the system is sensitive are admitted through arcuate windows 38 and lenses 34 extending between the arms 16. As disclosed in Specification 1,511,641 the radiations are focused by a ring lens 22 and reflectors 23, 25 on to radiation-sensitive cells 24, 26. The arms 16 are non-transparent to radiations and to avoid diverging blind spaces between the fields of view of adjacent windows, the lenses 34 have negative power so that a field view of 94 degrees bounded by planes 39, 41 is refracted to 60 degrees. Thus the adjacent fields of view intersect at a distance from the missile body 10 and the whole 360 degree space around the missile is covered, this distance is such that the triangular "blind" space between adjacent fields of view is too small to completely contain the source of radiation to be detected.
Patent GB-534523-A (GB)
Title: Improvements in or relating to aircraft cabins
IPC: B64D13/04
Filed: 1939-06-30
Abstract: 534,523. Aircraft pressure cabins. GENERAL AIRCRAFT, Ltd., and McEVOY, M. A. June 30, 1939, No. 19159. [Class 4] Air is supplied to a pressure cabin 5 by an impeller 3 of the positively-operating type from a point 11 of the aeroplane at relatively high pressure and is discharged through a motor or pump 4 of the positively-operating type to a point of low-pressure such as the upper surface of a wing 10, the motor and impeller being selfsealing when stationary. To economize power, the impeller and pump may be geared together through variable speed mechanism controlled by a pressure sensitive device 15. In some cases, the impeller provides an excess of air which passes through a blow-off valve. An emergency source of compressed air or oxygen may be provided. Specification 534,524 is referred to in the Provisional Specification.
Patent GB-1525885-A (GB)
Title: Vincamine salt of pyridoxal phosphate
IPC: A61P9/08
Filed: 1976-05-11
Abstract: 1525885 Vincamine pyridoxal-5-phosphate SOC D'ETUDES DE PRODUITS CHIMIQUES 28 April 1977 [11 May 1976] 19290/76 Heading C2V The invention comprises vincamine pyridoxal-5-phosphate having the formula: The compound may be obtained by reacting a suspension of vincamine in a mixture of water and a C 1-6  alkanol, e.g. methanol, with pyridoxal 5-phosphate at about 105 C. The product has therapeutic properties and may be used as active ingredient in conventional therapeutic compositions.
Patent GB-701175-A (GB)
Title: Improvements in or relating to a gas turbine plant
IPC: F02C5/10
Filed: 1951-08-15
Abstract: 701,175. Gas turbine plant. MASCHINENFABRIK AUGSBURG-NURNBERG AKT.-GES. Aug. 15, 1951 [Aug. 18, 1950], No. 19294/51: Class 110 (3). [Also in Groups XII and XXIX]  A gas turbine plant comprises an oscillating column combustion chamber and a turbine arranged in the feed pipe of the combustion chamber so as to be, driven by the air or mixture drawn in. The combustion chamber 1 is supplied with fuel by a pipe 7 which is ignited by the igniter 10. This causes a pressure wave to travel towards the open end of the combustion chamber. A flow is prevented in the opposite direction by the non-return valve 3. At the open end of the combustion chamber, to which a diffuser 9 is preferably fitted, the advancing pressure wave is converted into a returning negative pressure wave which travelling back down the tube causes the intake of fresh air through the valve 3 and the ignition of the new mixture. The fuel may be supplied continuously or intermittently, and may be injected, by means of the pressure changes in the combustion chamber acting through, a pipe 5 and non-return valve 6 or the fuel in a pressure-tight tank 4. The fuel is injected through non-return valve 8 and pipe 7. The non-return valve 3 is formed from a number of tubes 12 which lead to an annular chamber and open transversely of the flow. The turbine 2 is connected in front of the non-return valve 3. In a modification a heat exchanger heated by the combustion gases is placed between the turbine 2 and non-return valve 3. In another modification, the heat exchanger is arranged before the turbine. In a further modification, a compressor driven by the turbine may supply air to the inlet of the combustion chamber through a heat exchanger heated by the combustion gases. The plant is suitable for the combustion of all solid pulverulent fuels as well as liquid and gaseous fuels when using light volatile liquid or gaseous fuels, the injection of the fuels may take place in a carburetter or a gas-air mixer in front of the turbine. Specification 368,564, [Group XXXIIII], is referred to.
Patent GB-1583961-A (GB)
Title: Prostacyclin and derivatives thereof
IPC: A61K31/34
Filed: 1976-05-11
Abstract: Novel prostaglandin derivatives of the formula Ia are prepared by dehydrohalogenation of a compound of the formula III. The dehydrohalogenation is carried out using alkali metal alkoxide. The symbols in formulae Ia and III have the meaning given in Patent Claim 1. The compounds of the formula Ia and their salts have useful pharmacological properties. <IMAGE>
Patent GB-891043-A (GB)
Title: Production of light sensitivity in photo-conductive layers for electro-photography
IPC: G03G5/087
Filed: 1958-06-17
Abstract: A photo-conductive layer is prepared in Example 3 firstly by dissolving in 1,000 parts by weight of ethyl alcohol 200 parts by weight of a product obtained by esterifying 3 mols. of phthalic acid, 3 mols. of trimethylol propane and 1 mol. of pentaerythritol with subsequent reaction with 5 mols. of cyclohexyl isocyanate. Into this synthetic resin solution are incorporated by stirring 600 parts by weight of zinc oxide; the mixture is treated for several hours in a ball mill, cast on to an acetyl cellulose film, and dried. Specifications 633,849, 775,812, 811,165, 818,068, 834,502 and 883,782 are referred to.
Patent GB-758292-A (GB)
Title: Measuring device and balancing method for elastic articles
IPC: G01M1/22
Filed: 1954-07-02
Abstract: 758,292. Determining rotor unbalance electrically. AVERY, Ltd., W. & T. July 2, 1954, No. 19401/54. Class 40(1) Dynamic balancing apparatus for rotors which are rotating at such a speed that they are distorted comprises means for determining the unbalance in two planes at low speeds, and in a third plane midway between the other two planes at high speed, the first two balancing masses being then each increased by half the third balancing mass to maintain the balance at low speeds. As shown (Fig. 3) the unbalance of a rotor 1 in two planes 24, 25 at low speeds is determined in known manner by transducers 11, 12 associated with the bearings 2. 3. the electrical signals being fed' into a meter 14 together with two 90 degrees displaced reference signals from a generator 7 fixed to the rotating rotor 1. The rotor 1 is also coupled to a further generator 15 which has two pairs of output windings 34-37 (Fig. 4). one pair 34, 35 being located at 90 degrees to the other pair 36, 37, the outputs being fed into acontrol box 13 containing potentiometers 38-41 and initially closed switches 42, 43. The voltage outputs from generator 15 bear the same relationship to speed of rotation as the voltage outputs from the transducers 11, 12. After noting the phase and magnitude of the low speed unbalance masses switches 42, 43 are opened, and potentiometers 38-41 adjusted to introduce into the signal feed lines 44, 45 voltages which are exactly equal and opposite to the low speed unbalance signals. The rotor is then speeded up, when distortion occurs to produce an additional unbalance, which is now indicated on meter 14. The apparatus may also be used to calibrate and make the initial adjustments on meter 14, by first eliminating the low speed un- . balance signal in planes 24, is by the compensating generator 15, then adding known unbalance masses in their planes at 90 degrees apart, whereupon the meter 14 is adjusted to give the correct phase relationship, and the sensitivity noted.
Patent GB-226775-A (GB)
Title: Improvements in the manufacture of radiators
IPC: B22C9/26
Filed: 1924-08-15
Abstract: 226,775. Courtot, L. Dec. 28, 1923, [Convention date]. Addition to 217,416. Moulding processes.-Radiator elements according to the parent Specification have all the parallel tubes cross connected. The cores are made in grid formation and chaplets may be located on all or part only of the connecting portions.