baber/WOPTO huggingface dataset:
Patent GB-1426057-A (GB)
Title: Production of esters
IPC: C07C67/60
Filed: 1972-04-24
Abstract: 1426057 Esters IMPERIAL CHEMICAL INDUSTRIES Ltd 6 April 1973 [24 April 1972] 18825/72 Heading C2C An esterification process comprises reacting an alcohol with a carboxylic acid anhydride at a temperature in excess of 100‹ C. in the presence of a metal or metal compound esterification catalyst to produce an ester boiling above 100‹ C. the ester product being treated with an aqueous inorganic alkali solution whilst maintaining the temperature in excess of 100‹ C. during the treatment. Representative of the processes described in examples is the reaction of isooctanol with phthalic anhydride in the presence of titanium isopropoxide and treatment of the reaction product with sodium carbamate solution.
Patent GB-287377-A (GB)
Title: Improved selecting arrangement for fire alarm and like systems
IPC: G08B25/00
Filed: 1927-07-15
Abstract: 287,377. Jackson, L. Mellersh-, (Siemens & Halske Akt.-Ges.). July 15, 1927. Fire-alarm systems.-Electromagnetic relays are employed to ensure in a signalling system that, on the receipt of a plurality of signals, one only is transmitted to the indicator. Relay A effects the selection between loops I II and relay D in combination with relays B, C, effects the selection of one out of several signals on the same loop. The simultaneous operation of two alarms M on loop I causes the operation of line relays 1, 2, and in the event of the signals differing one armature 2 will be attracted while the other is released. The holding relays HR1a - - - HR2b and relay A will be actuated so that relav C is energized and operates relay D to the right to close a holding circuit for itself and to open contacts 35, 36 so that relay C is rendered ineffective. Relay B, however, transmits the signal from line relay 1 to the indicator L. Morse apparatus M1 - - M4 individual to each line relay 1 - - 4 is additionally provided so that records of all signals received are obtained. The intermediate relays HR1a - - HR2b may be dispensed with.
Patent GB-237621-A (GB)
Title: Valve gear for multi-cylinder marine engines
IPC: B63H21/04
Filed: 1925-07-24
Abstract: 237,621. Christiansen & Meyer. July 25, 1924, [Convention date]. Cam gears; beat or lift valves.-In a multiplecylinder, marine engine comprising two similar compound engines of the Woolf type, the inlet and intermediate valves c, d are arranged at the front side, and the low-pressure exhaust valves e at the rear side of the cylinders. The valves are operated by front and rear oscillating cam shafts f, g respectively arranged parallel to the main shaft and operated from an intermediate shaft k through links h, i respectively. Alternatively the link i may be replaced by a link directly connecting shafts f, g. The valves e may be off-set relative to the low-pressure cylinders, and the shafts g may be replaced by studs carrying oscillating cams.
Patent GB-347952-A (GB)
Title: Improvements in crank and gear casings for use with multicylinder engines
IPC: F02B75/02
Filed: 1930-06-21
Abstract: 347,952. Four stroke engines. ARIEL WORKS, Ltd., SANGSTER, J. Y., and TURNER, E., Dale Road, Selly Oak, Birmingham. June 21, 1930, No. 18957. Addition to 330,231, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of]. [Class 7 (ii).] In an engine having four cylinders arranged in parallel pairs with parallel crank shafts a, b connected by spur wheels a<3>, b<3>, the rear shaft b is extended by a flywheel f to which is attached a sprocket wheel f<2>. The drive is taken from this wheel to a clutch and gearbox unit. Crank chambers.-The connecting wheels a3, b<3> are housed within an oil-containing chamber c, c<1>, the crank throws and connecting- rods being outside the chamber but within the crank case. The chamber is in two parts, each part carrying half of the bearings a<6> for the shafts. The upper part is integral with the main crank case. Lubricant may be supplied by a pump after filtration from a reservoir in the main case.
Patent GB-1151065-A (GB)
Title: Surface Effect Machines.
Inventor: BERTIN JEAN HENRI
IPC: B60V3/04
Filed: 1966-04-29
Abstract: 1,151,065. Air cushion vehicles. SOC. BERTIN & CIE. 29 April, 1966 [30 April, 1965], No. 18989/66. Heading B7K. An air cushion vehicle has a perforated plate 7 connected by a peripheral flexible wall 3 to the vehicle structure. There is also a load-carrying platform 1 and a shock-absorbing cushion formed by an air chamber 10a through which air for the air cushion passes, or alternatively (Fig. 4, not shown) a cushion formed by inflatable bags or elastic material (27). The perforated plate 7 is directly connected either to the platform 1 or a separate wall of the chamber 10a (Fig. 3, not shown) by rigid ties, or is connected by telescopic spring links (30) to the vehicle structure (Fig. 4, not shown).
Patent GB-1360996-A (GB)
Title: Semiconductor device and method for manufacture
IPC: H01L21/762
Filed: 1971-06-07
Abstract: 1360996 Semi-conductor devices HITACHI Ltd 7 June 1971 [15 June 1970] 19184/71 Heading H1K Lateral isolation of semi-conductor islands 12a, 12b, 12c on a semi-conductor substrate 11 is effected by selectively oxidized material 13, the upper surface of which is substantially flush with the tops of the islands 12a, 12b, 12c. The islands 12a, 12b, 12c are portions of an initially complete epitaxial layer and are isolated from the substrate by the reverse biased PN junctions therebetween. Buried N<SP>+</SP> layers may also underlie theislands 12a, 12b, 12c.
Patent GB-1142524-A (GB)
Title: Color source
IPC: G03B27/54
Filed: 1966-05-02
Abstract: 1,142,524. Producing white light. WELCH SCIENTIFIC CO. 2 May, 1966 [5 May, 1965], No. 19189/66. Heading F4R. [Also in Division G2] A combination light source for use in printing enlargements of colour photographs comprises three separate light sources 20, 21, 22 in vertically spaced relationship. Each source has the configuration shown in Fig. 4, light from a lamp 35 having a rear reflector 34 being collimated by lenses 42, 44. Two filters 50, 51 limit the light transmitted thereby to a selected wavelength band. A dichroic filter 52, placed at an angle of 45 degrees, directs the filtered light downwards along the central optical axis 30 to the condenser lens system. A similar arrangement of filters is provided for each of the three sources, which are angularly spaced 30 degrees apart (Fig. 3). These sources are respectively red, green, and blue, and their intensities are separately controlled by variable resistances, e.g. 60. Light from all three sources combines along the axis 30 to provide a uniform beam of white light of three identifiable, individually controllable, and accurately trimmed colour components.
Patent GB-905927-A (GB)
Title: Production of musical script
Filed: 1957-06-19
Abstract: 905,927. Music. TONESCRIPT PRODUCTS Ltd., and PAYNE, K. Sept. 12, 1958 [June 19, 1957], No. 19275/57. Class 88 (2). [Also in Group XX] A method of producing a photographic reproduction for displaying a musical script running continuously on an elongated band comprises the steps of driving the band continuously in synchronism with a device reproducing music from a pre-existing record, marking the driven band from a fixed station to show the position on the band at which successive portions of the musical script should appear, depicting the script on the band in accordance with the markings, driving the band again, and photographing the script by means of a fixed cine camera operated in synchronism with the band. Specification 860,186 is referred to.
Patent GB-530756-A (GB)
Title: Improvements relating to the production of designs for application to textile materials, wallpaper and the like
IPC: G03F1/54
Filed: 1939-07-03
Abstract: 530,756. Photo-mechanical printing surfaces. CURRIE, W. E., and KUKLA, E. July 3, 1939, No. 19277. [Class 98 (ii)] A repeat design from which engraved rollers are made in known manner for printing wallpaper, textile fabrics &c. is produced by making from a negative of the subject four or more juxtaposed enlarged positive prints with blank interspaces between them produced by masking, and filling in the interspaces by hand to give continuity of design. The repeat design may also be coloured for use in preparing a multicolour design, and a separate enlarged positive may be made and handcoloured to serve as a guide for the final design. The outlines of the mask or masks used are preferably irregular.
Patent GB-744805-A (GB)
Title: Improvements in or relating to chain assemblages
IPC: D06C3/04
Filed: 1953-03-02
Abstract: 744,805. Chains. DU PONT DE NEMOURS & CO., E. 1. March 2, 1953 [March 24, 1952], No. 19367/54. Divided out of 744,768, [Group VIII]. Class 24. A chain assemblage comprises a plurality of links and pins securing the links together, each link having a hole to receive a pin and a seat through which passes a pin received by the hole of another link of the chain, the arrangement being such that rotation of a link about the pin in its hole forces the pin of said other link along said slot whereby adjacent links are separated or drawn together. In one embodiment, Fig. 2, which shows part of the apparatus for stretching webs of sheet material described in the parent Specification, the chain comprises links as shown in Fig. 4, each having a pivot hole 15 and a slot 16. Two sets of links are stacked in pairs above and below a guide plate 35 and are connected by pins 18 which pass through the pivot hole 15 of one link and the slot 16 of the next link in the chain, and travel between the guide plate 35 and a guide rail 29. Web grippers comprising a bracket 22 and a base-plate 27 are mounted on some or all of the pins 18. The web W is gripped between the base-plate 27 and an arm 23 pivoted to the bracket 22 which has a slot 26 engaging an adjacent pin. The slot 16 in each link is inclined at an angle to the line joining the axes of the pins 18, so the tension in the chain tends to rotate each link about its pivot hole 15. The tip 17 of each link engages a slanting cam surface 36 on a guide rail 30 which is pivoted at 31 so that its divergence from guide rail 29 can be varied to control the amount of rotation of each link and the distance between the pins 18, which varies from x to nx (Fig. 4) as the links rotate. The pin passing through the pivot hole 15 of one link need not pass through the slot 16 of the next link and the contour of the links can be modified so that they can be stacked in units of three, four or more. Fig. 5 shows an alternative link construction to Fig. 4. In both these constructions the angle # between the axis of the seat and a line joining the axes of the pins increases as the link rotates so that the force F tending to rotate the link also increases. In an alternative construction, Fig. 9, the slot 16 is curved and in this case the rotating force remains constant as the link rotates.
Patent GB-790501-A (GB)
Title: Improvements in or relating to gas governors
IPC: G05D16/06
Filed: 1955-07-06
Abstract: 790,501. Fluid-actuated valves. BROWN, R. W., PARKER, R. H., and FEARNLEY, G. C. Jan. 25,1956 [July 6,1955], No. 19597/55. Class 135. In a diaphragm-actuated gas pressure governor, the pressure control diaphragm 19 is isolated from direct contact with the gas flowing through the valve body 10, its upper face being subjected to the pressure at the throat 14 of a Venturi in the outlet duct 11 transmitted through a passage 15, and its lower face, to atmospheric pressure through a vent 25. The diaphragm 19 which is fixed to a stem 21 carrying the valve member 13 is loaded by weights 33 carried on two-armed pivoted levers 30 connected by links 29 to an arm 28 carried by the stem so that the weights 33 open the valve against outlet pressure. A diaphragm 22 secured to the base of a body part 18 is subjected to inlet pressure to balance the inlet pressure acting on the upper face of the valve member 13 and a diaphragm 27 seals a body part 17 against leakage. The vent 25 may be throttled to damp closing movements of the valve.
Patent GB-709824-A (GB)
Title: Improved method for joining the ends of pipes of polythene or other thermoplastic material
IPC: B29C33/52
Filed: 1951-08-20
Abstract: 709,824. Pipe joints. CHRISTIAN, G. R. Nov. 19, 1952 [Aug. 20, 1951], No. 19615/51. Class 99 (1). In a joint wherein the ends of two pipes of polythene or other thermoplastic material are butt-welded, a liner of soluble material and sufficiently heat resistant to retain its shape during the welding operation is inserted into the ends of the pipes to prevent the formation of an internal bead or lip at the joint. The liner may comprise sugar or a starch compound and a soluble binder, such as albumin or glucose, or Fullers' earth and a soluble binder. The liner is dissolved after welding by passing water through the joined pipes.
Patent GB-315861-A (GB)
Title: Improvements in casings for the cylinder heads of internalcombustion engines
IPC: F02B77/13
Filed: 1929-06-26
Abstract: 315,861. Motorenfabrik Deutz Akt.- Ges. July 21, 1928, [Convention date] Casings; cylinders, pipes for.-The exhaust pipe c of a single cylinder engine or the common exhaust pipe of a multi-cylinder engine has a long flange g, which rests on the flange f of the cylinder head or on top of the casing d enclosing the cylinder. A cover e for the head abuts on one side against the flange g and rests on the flange f. In an oil engine air is abstracted from the space within the cover. In a gas engine, the gas admission pipe has a flange similar to that, g, on the exhaust pipe and the cover abuts against this flange. In a multi-cylinder engine a separate cover may be provided for each cylinder.
Patent GB-223677-A (GB)
Title: Improvements in apparatus for displaying and advertising by optical projection
IPC: G09F19/18
Filed: 1923-08-01
Abstract: 223,677. Haddan, R., (Millican, J.). Aug. 1., 1923. Prisms and like elements, rotating; elements moving always in one plane, rotating; optical-projection apparatus, applications of.-An advertising and picture displaying appliance comprises an intermittently-rotated internallyilluminated drum combined with an intermittently rotated disc carrying transparencies for optical projection. The device is enclosed in a fixed casing 16 having open panels 17 and furnished with a roof 13, cowl 15, and, if desired, suspension and stay rings 14, 11. The rotating drum carrying translucent sides 76 is supported bv spider arms 74 mounted on a flange 90 on a sleeve 30 rotatable on a spindle 24 resting on a bearing on the bottom of the casing 16 and journaled in a bearing 25. A motor 22 imparts continuous rotation to the spindle 24 through double worm reduction gearing 20, 21, and this is converted into intermittent rotation of the sleeve 30 by mechanism shown in Fig. 3. A stationary cam 37 engages a spring-depressed key 33 mounted on a flange 36 fixed to the rotating spindle 24, and raises it once every revolution into engagement with one of a ring of slots 32 in a flange 29 fixed on the sleeve 30. The drum is thus rotated through the angle subtended by one of its sides for each revolution of the spindle 24, and is positioned by notches 31 in the rim of the flange 29 engaged by a spring-pressed latch 28. A spider 40 fixed on the sleeve 30 serves to rotate a transparency carrier 46. Pins 42 on the spider 40 engage pins 47 on a disc 43 fixed to the carrier 46, and a spring latch 45 engages notches 44 on the disc 43 for positioning purposes. Each side 76 has a clear space 98 through which the light from the optical projector emerges for focussing on a distant screen. A fan 72 governs the motor 22 and circulates air through the lantern. Lubrication of the motor shaft is effected by a helical groove therein and a leak groove in the bearing, oil being taken from a bath at the foot. The spindle 24 is lubricated in the bearing 25 by a hole drilled angularly through the spinde through which oil mist rises, and in the sleeve 30 by a grease cavity between the end bearings thereof. Two lamps in parallel for illuminating the interior of the drum and for optical projection are lit and extinguished by a switch arm 62 held on the contacts 61 by pins 69 on the flange 29 engaging a striker 65, and quickly broken by a spring 66 soon after the flange 29 begins to move. The following pin 69 brings the arm 62 round to make contact for the next dwell period. The number of transparencies on the carrier 46 differs from the number of sides to the drum to ensure a large number of different combinations of drum advertisements and projector advertisements observable from one point.
Patent GB-1470848-A (GB)
Title: Bed for patient
IPC: A61H35/00
Filed: 1974-05-06
Abstract: 1470848 Sanitary provision in beds; bidets H KATO 6 May 1974 [7 May 1973] 19742/74 Headings A4J and A4N [ Also in Division E1] An invalids bed comprises a frame 1 with a cushion 2, the hole 4 being normally closed by a cushion 6 supported on a plate 5, the plate 5 being removable downwardly within a frame 14 and the frame being laterally moveable to position a flushable pot 7 below the hole 4 for subsequent lifting into said hole to a position wherein the edge of the pot is flush with the upper surface of cushion 2. As described the raising and lowering is performed by lead screws 12, 13, journalled in frame 14 and engaging lugs 10, 11 on cover support 8 and pot support 7 respectively. The lead screws are driven by separate motors (18, 19), Fig. 7, (not shown) and a third motor (20, Fig. 7) drives a pinion engaged with a rack secured to rails on which the frame 14 is guided. BED-PANS AND BIDETS. The pot 7 is provided with flushing and patient washing sprays fed by a pump 21 from reservoir 23, Fig. 12, the excretia being flushed to a reservoir 59 or to a soil pipe. Ventilating equipment, Fig. 13, is also provided wherein in one position of a valve 57 a fan 32 can deliver air via a heater 52 to dry the patient, and in the other position of the valve 57 air and fumes are exhausted from the pot and expelled via conduit 62. The valve 57 is actuated by solenoid 54 and also controls a heating element switch. The operation of the bed is controlled by a two drum sequence controller Fig. 14, (not shown) wherein the main drum controls the movements of the pot 7 and the cover 5 and the auxiliary drum controls the washing/flushing/drying/extracting steps.
Patent GB-595785-A (GB)
Title: Improvements in or relating to dyestuff intermediates
IPC: C07D215/14
Filed: 1945-07-03
Abstract: A dye intermediate is prepared by heating a compound of the forumula of Fig. 1. <PICT:0595785/IV/1> wherein R is an alkyl or aralkyl group and D a chain of 3 methylene groups, any of which may be hydrocarbon-substituted with an alkyl or aralkyl quaternary salt of a 5- or 6-membered heterocyclic nitrogen compound containing a reactive methylene group in a - or g -position to the quarternary nitrogen atom or a 5-membered heterocyclic nitrogen keto-methylene compound, the reaction being effected in presence of a non-basic compound which will combine with the liberated mercaptan RSH.  The first compound may be D 2 : 3 - (3 - ethylthio - 5 : 5 - dimethyl)-cyclohexenone (1), D 2 : 3 - (3-ethylthio - 5 - phenyl) - cyclohexenone (1), D 2 : 3 - (3 - ethylthio - 5 - methyl) - cyclohexenone (1), or D 2 : 3 - (3 - ethylthio) - cyclohexenone (1), or an analogous compound prepared as in Specification 595,783 from 5-isopropylcyclohexanedione (1 : 3), 4 : 5 : 5-trimethylcyclohexanedione (1 : 3), 4 - phenyl - 5 : 5 - dimethylcyclohexanonedione (1 : 3), or 5-styrylcyclohexanedione (1 : 3).  The non-basic compound may be acetic anhydride. Examples are given of the preparation of intermediates (1) by fusing together D 2 : 3-(3-ethylthio - 5 : 5 - dimethyl) - cyclohexenone (1), 1 - methylbenzthiazole, and methyl p-toluenesulphonate, adding acetic anhydride, refluxing and pouring into aqueous KI solution; (2) to (4) by proceeding similarly to example (1), but obtaining the methyl-p-toluenesulphonate, the ethiodide, and the ethyl-p-toluenesulphonate respectively; (5) by proceeding similarly to example (1), but using ethyl-p-toluenesulphonate and quinaldine; (6) by proceeding similarly to example (1), but using ethyl-p-toluenesulphonate and p-toluquinaldine; (7) by fusing together 1-methylbenzthiazole and ethyl p-toluenesulphonate, adding D 2 : 3-(3-ethylthio-5-methyl) - cyclohexenone (1), refusing, adding acetic anhydride, and refluxing; (8) by fusing together 1 - methylbenzthiazole, methyl p-toluenesulphonate, D 2 : 3 - (3-ethylthio)-cyclo - hexenone (1), adding acetic anhydride, and boiling; (9) by fusing together N-methylrhodanine and D 2 : 3 - (3 - ethylthio - 5 : 5 - dimethyl)-cyclohexenone (1), adding acetic anhydride and boiling; and (10) by fusing together 1-phenyl-3-methyl-5-pyrazolone and D 2 : 3-(3-ethylthio - 5 : 5 - dimethyl) - cyclohexenone (1), adding acetic anhydride, and boiling. Specification 595,784 also is referred to.
Patent GB-618236-A (GB)
Title: Improvements in or relating to pressure sealing joint for pipes
IPC: F16L19/06
Filed: 1945-08-02
Abstract: 618,236. Pipe joints. HOBBS, J. C. Aug. 2, 1945, No. 19878. Convention date, June 15, 1943. [Class 99 (i)] In a pressure-sealing joint for pipes and the like in which the pipe 3 is to be joined to a high - pressure valve body 1, the pipe has an enlarged end formed by attaching a ring 5 by means of weld metal 6, or otherwise, the enlarged end having an inclined surface as shown which is contacted by a deformable packing 8 maintained in sealing engagement with it and the side wall of the recess by means of the ring 7 and a member 9 which screws into the body 1. High pressure fluid in the joint tends to move the pipe axially and thus compress the packing into firmer engagement with the pipe and the recess. In a modification, the gland nut 9 is replaced by a member which has an annular part which compresses the packing and is provided with flanges bolted to the body.
Patent GB-1422767-A (GB)
Title: Polypiperazinamides and reverse osmosis anisotropic membranes made therefrom
IPC: B01D71/56
Filed: 1974-05-07
Abstract: 1422767 Polypiperazimide membranes MONTEDISON SpA 7 May 1974 [7 May 1973] 19946/74 Heading B5B [Also in Division C3] A reverse osmosis anisotropic membrane is east from a solution of a polypiperazinamide which has units (I) where x s 0-8, R is any substituent, and A is a dicarbonyl radical being, in some of all of the units (I), (II) where R<SP>1</SP> and R<SP>11</SP> are H, alkyl, or aryl, and X is O or S. x and R may differ in different units. Optional units A include The substituents R may be arranged in any steric position in the piperazine ring, so that the substituted piperazine groups can be arranged cis- or trans-. The membrane is formed from the solution by (a) casting, (b) partially evaporating the solvent, and (c) coagulating by immersion in water, and optionally heat-treating. The solvent may be an alkyl amide, sulphoxide, or sulphone. Also present may be LiCl, LiNO 3 , LiBr, CaCl 2 , ZnCl 2 , MgCl, or MgClO 4 , or water. Before casting, the solution may be heated to from 70 C. to the b.p. of the solvent. The evaporation may be performed at 70-200 C., the coagulation at 0-30 C., and the heat-treatment in water at 60-100 C. The casting support may be flat or tubular and may be of glass, metal, polyethylene terephthalate, PTFE, woven or non-woven fabric, or paper; it may be porous. The coagulation bath water may contain NaCl, CaCl 2 , alcohols, or acetone. The membranes may be flat, tubular, or in the form of hollow fibres.