baber/WOPTO huggingface dataset:
Patent GB-807199-A (GB)
Title: Coating composition
Inventor: MCPHERSON NEIL
IPC: C08G18/81
Filed: 1956-06-01
Abstract: The invention comprises a can-stable composition which is the reaction product of a resin containing free hydroxyl groups and an unsaturated urethane isocyanate in a non-reactive solvent. Suitable resins are those derived from epoxy compounds, partially saponified vinyl halide or vinyl ester polymers or copolymers or alkyd-type polyesters containing free hydroxyl groups.  A preferred alkyd resin has a free hydroxyl content of 6 per cent by weight.  The urethane isocyanate has present in the molecule as essential features an unsaturated polymerizable group, such as a vinyl group, a urethane group and a reactive isocyanate group.  A suitable compound (prepared from propylene glycol monomethacrylate and toluylene diisocyanate has the formula CH2 = C(CH3).COO.CH(CH3) CH2.O.CO.NH.C6H3(CH3)NCO.  The compositions form films on stoving or in the cold using a vinyl polymerization catalyst, e.g. benzoyl peroxide.  In examples an alkyd resin of hydroxyl content 6 per cent obtained by heating at 200 DEG C. glycol, glycerol and adipic acid is mixed in ethyl acetate solution with the vinyl urethane isocyanate prepared from propylene glycol monoacrylate and toluylene diisocyanate.  The gel obtained is formed into a film on steel and stoved at 180 DEG  C.  The Provisional Specification refers also to the use of isocyanates of the general formula R-COOR1-NCO where R represents acrylate, methacrylate or crotonate and R1 an alkyl, aryl or mixed alkyl/aryl group, and also of acrylyl, methacrylyl, vinyl, isoprenyl and styrene isocyanates.ALSO:An unsaturated urethane isocyanate for use in the preparation of synthetic resins (see Group IV (a)), is prepared by reacting an unsaturated monobasic organic acid with an organic oxide in the presence of ferric chloride to form an unsaturated glycol ester. This ester is then reacted with a molar equivalent of a diisocyanate.  In this manner there is prepared from methacrylic acid and propylene oxide the ester propylene glycol monomethacrylate which is then reacted with toluylene diisocyanate to give the product of formula CH2 = C(CH3) <FORM:0807199/IV (b)/1> References is also made to unsaturated urethane isocyanates prepared from unsaturated fatty alcohols and diisocyanates.
Patent GB-919174-A (GB)
Title: Improvements in or relating to pressure vessels
IPC: E04H7/14
Filed: 1960-05-13
Abstract: 919,174. Reactor pressure vessels. KLOENNE, A., and KLOENNE, M., [trading as KLOENNE, A., [Firm of]]. May 13, 1960 [May 13, 1959], No. 16957/60. Class 39 (4). A spherical nuclear reactor pressure vessel 1 is carried on supports 2 mounted on bases 5. The latter are set at a radius r R  so as to prestress the sphere skin in the empty condition a and to leave no skin stress in the expanded condition b.
Patent GB-421335-A (GB)
Title: Improvements relating to pulley bearings
IPC: F16C25/06
Filed: 1933-06-14
Abstract: 421,335. Ball bearings. WILLIAMS, W. T., Benson Works, Foundry Lane, Birming- ham. June 14, 1933, No. 16959. [Class 12 (i)] A haulage cable pulley or roller has a bearing including a body part, carrying an adjustable bearing member. As shown, a bracket a, Fig. 2, can be clamped by bolts e, to the upper end of an existing bracket d. The haulage pulley has a conical spindle m carried in a bearing k in the bracket a, the bearing k being adjusted by a screw o bearing upon a washer n. The latter may be omitted. In a modification, the washer n is replaced by a plate. In another modification, the bearing is adjusted by finger pressure applied to a sleeve s, Fig. 6, slidable in the bracket a. The sleeve s is locked in adjusted position by a screw u, or by a cottar pin, or by clamping it in position if the bracket is slotted. The bracket a may be screwed to a wooden block 10 as shown in Fig. 15. In this modification the bearing is mounted in the haulage pulley and is supported by the coned end of a pin 6 adjustably screwed to the bracket a.
Patent GB-965696-A (GB)
Title: Improvements in or relating to semiconductor devices
IPC: H01L23/045
Filed: 1961-05-10
Abstract: 965,696. Semi-conductor devices. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 10, 1961 [May 13, 1960], No. 17027/61. Heading H1K. A metal part of a casing of a semi-conductor device to be held against a mounting plate or chassis is provided with a surface layer less than 100Á thick of a metal having a hardness less than that of the casing metal. Suitable metals for use with copper or aluminium casings are lead, tin and indium and soft alloys thereof, which may be applied by spraying, melting on, or electrodeposition. In the transistor shown in Fig. 2 a layer 13 of lead or tin 20Á thick is used, the base of the casing being bolted as shown to an aluminium plate 15 coated with aluminium oxide 16. A diode in which the base of the casing is integral with a threaded nut is also described.
Patent GB-241278-A (GB)
Title: Improvements in the production of metallic catalysts suitable for use in the manufacture of synthetic ammonia and other purposes
IPC: C01C1/04
Filed: 1924-07-16
Abstract: The process of the parent Specification for the activation and reactivation of the surface of metallic catalysts by electrolytic anodic oxidation and subsequent reduction is applied to the treatment of alloys of two or more metals, e.g. a nickel-copper alloy.  The products, whose surface on reduction approximates in composition to that of the unoxidized alloy, are useful in the hydrogenation of oils and dehydrogenation of alcohols.  A further modification of the process of the parent Specification consists in the reduction of the electrolytically-oxidized surface without previously removing the alkali metal salt employed as electrolyte.  The product then consists of a metal together with a trace of the alkali metal salt which exercises a promoting effect when the catalyst is employed for the synthesis of ammonia or the manufacture of hydrogen.  Salts of the rare alkali metals may be employed.
Patent GB-676394-A (GB)
Title: Wedge connection for securing hand tools to handles and for like purposes
IPC: B25G3/28
Filed: 1950-07-07
Abstract: 676,394. Securing hammer heads. SOCHOR, J. July 7, 1950, No. 17091/50. Class 61 (i): [Also in Group XXV] A wooden handle is fixed in the eye of a hammer head by means of a wedge member comprising a central pin 8 having arms 9 which span the end of the handle and have downwardly projecting cutting edges 10. Depending strips 12 attached to the rounded outer ends of the arms 9 have rounded outer surfaces which fit in the eye. The wedge is placed in the socket prior to hammering in the handle, the ends of the strips 12 being subsequently bent back into recesses 4 in the head. In a modification downwardly projecting pins are provided at the ends of the arms, these being forced into inclined bores opening into the bore in the hammer head.
Patent GB-1531378-A (GB)
Title: Cryopump
IPC: F04B37/08
Filed: 1977-04-25
Abstract: 1531378 Cryopumps LEYBOLD-HERAEUS GmbH & CO KG 25 April 1977 [11 May 1976] 17136/77 Heading F1N A cryopump has condensing surfaces consisting of plates 5, 6, 7, 8 arranged in a housing 1 perpendicular to the plane of the inlet opening 2 of the housing, the plates being cooled by a centrally located head 3 and shielded from heat-radiation through the opening 2 by metal strips 22-26 the longitudinal axes of which lie parallel to the plane. The ends of the strips 22-26 are in direct thermal contact with a shielding jacket 20 separated by insulation 21 from the housing 1. The inner surfaces of the plates are blackened at 32 together with areas 28-31 of the jacket.
Patent GB-1328460-A (GB)
Title: Apparatus for automatically determining the notes of the scale  and the notes of given chords in a given key
IPC: G10G1/02
Filed: 1971-05-26
Abstract: 1328460 Chord and note indicators BADEV SA 26 May 1971 [29 May 1970] 17142/71 Heading G5X An apparatus which automatically determines the signature of a scale and the notes of all chords of a given key consists of two relatively rotatable discs 1, 2 assembled at their centre 3, each disc being divided into twelve sectors 4, 5. The peripheral area of disc 1 carries symbols of twelve musical notes; and the second disc carries markings indicating the succession of tones and semi tones of major M and minor m scales. Each sector 5 of disc 2 has groups of windows 6 corresponding to a given chord and the disc 1 carries markings corresponding to all the notes capable of being used in the composition of all the chords of the corresponding note in the peripheral portion of the disc of that sector. Other arrangements of windows, numbers of sectors and numbers of windows may be used.
Patent GB-1530098-A (GB)
Title: Process for reducing the ribonucleic acid content of yeast protein
IPC: C12N9/22
Filed: 1977-04-25
Abstract: 1530098 Protection of ribonuclease in yeast cultures ANHEUSER-BUSCH Inc 25 April 1977 [2 Aug 1976] 17157/77 Heading C3H The endogenous ribonuclease of yeast is pro-  tected against alkaline conditions by adding at least one zinc salt, or biologically available zinc, to a yeast medium, used in the production of a protein concentrate having a reduced nucleic acid content, below 9% before the pH of the yeast medium is raised above 7. The source of zinc, e.g. zinc sulphate, may be added to the growing yeast, to the yeast cells prior to homo-. genization of the harvested and washed yeast, or to the homogenate of cell walls and yeast protein before it is made highly alkaline. The ribonuclease is activated by adjusting the pH of the alkaline protein extract to 6À0 and allowing the system to incubate to yield the protein concentrate low in nucleic acid content.
Patent GB-671222-A (GB)
Title: Improvements in and relating to domestic gas cookers and the like
IPC: F24C3/08
Filed: 1949-06-29
Abstract: 671,222. Hot-plate stoves; mounting gas burners. PARKINSON STOVE CO., Ltd., and LUSK, A. Sept. 25, 1950 [June 29, 1949], No. 17165/49. Classes 75(i) and 126 The gas supply to a cooker hotplate is connected to a vertical gallery below the forward edge of the top-plate near one end of the hot plate and the gas is distributed to the burners by individual taps and pipes arranged close to the cooker side walls and enclosed by removable covers. Gas is supplied through pipe 17 and governor 18 to a vertical gallery 19 mounted below the top-plate 14 and behind the front plate 16. A second gallery 24 is connected to gallery 19 through a pipe 21 immediately below the forward edge of the top-plate 14 behind front-plate 16. Distribution of gas from galleries 19, 24 through pipes 26 to the burners is controlled by taps 25, the control knobs only of which are exposed on the face of the front plate. The pipes 26 are enclosed by detachable covers 28, provided with clips 30, Fig. 2, engaging the return edge of the oven top, and fixed by screws underneath the top return edges of the outer side walls 13. The mixing tubes 36 of the burners are housed in vertical semicylindrical depressions in the covers 28, and extend through the lower end surfaces of the depressions to rest on vertical nozzles 27 connected to pipes 26. The mixing tubes 36 are co-axial with nozzles 27 and are cut away to provide air entries 40. Each mixing tube is bent to enter the side of an annular burner 41, opposite downwardly projecting lugs 42 which straddle a back-to-front bar 43. A raised rib entering a notch in the bar 43 prevents back-tofront movement of the burner.
Patent GB-791488-A (GB)
Title: Centrifuge for removing water from fine-grained material
IPC: B04B3/06
Filed: 1956-06-04
Abstract: 791,488. Centrifugal strainer separators. HLÍCKNER-HUMBOLDT-DEUTZ AKT.- GES. June 4, 1956 [June 3, 1955], No. 17182/66. Class 46.  In a centrifugal strainer separator comprising a conical sieve drum 3 which rotates and also vibrates in an axial direction, the drum 3 is mounted on one end of a shaft 4 which projects above the drum at its other end and is there provided with a rotary drive such as a pulley 32, belts 33 and a motor 34, the shaft 4 being guided resiliently in an axial direction in the machine frame and connected to a device, such as a pair of out-ofbalance weights 47, 48, for generating axial vibrations, the device having a frequency rather less than the natural frequency of the vibrating parts of the machine. The shaft 4 is provided with an upper part 4a contained in a bearing housing 7 and bolted through flanged connections to the lower part 4, the connections gripping between them a plate 10 having three lobes each of which accommodates a double rubber buffer 11, 12, the buffers supporting resiliently the plate 10, the shaft 4 and drum 3 and the vibrator 47, 48. The vibrator assembly is anchored by a torsion spring 31 to a bracket 40 in the top 13 of the machine frame 14. A housing 17 shaped to correspond to the plate 10 covers and locates the upper ends of the buffers and supports a motor 72 which drives inter-geared discs 45, 46 on which the weights 47, 48 are mounted. The discs rotate at a speed which will produce vibrations having a frequency about 10 per cent less than the natural vibration frequency of the resiliently suspended assembly. If overloading reduces this latter frequency, the vibrator produces vibrations of greater amplitude and the rate of delivery of the material in the sieve is increased to relieve the excess load. Material shot down a shoot 52 is guided by a tube 51 to the floor of the sieve and rises up the sieve to be thrown out over a flange 37, against a rubber skirt 64 and into an annular space 61 between the walls 14 and the wall 53 of a space 56 surrounding the sieve and provided with water outlets 57. In a modification, Fig. 5, the sieve 82, its shaft 88 and pulley 89 rotate about a non-rotary spindle 96 mounted at its ends in rubber buffers 98, 103 and carrying vibrator discs 120, 121. Specification 724,602 [Group II] is referred to.
Patent GB-333673-A (GB)
Title: A gauge for measuring the depth of liquid in a reservoir
IPC: G01F23/16
Filed: 1929-06-05
Abstract: 333,673. Loy, G. S. June 5, 1929. No Patent granted (Scaling fee not paid). Indicators actuated by pressure of head of liquid. - In a liquid level gauge of the type in which pressure due to the head of liquid is transmitted through a pipe to a pressure gauge, the open-ended dipping pipe is normally above the level of the liquid, and is depressed by a fixed amount into the liquid when a reading is required. As applied to an engine crank case, the dipping pipe 3, flexibly connected to a pressure gauge 10, passes through a sleeve 4 mounted in the wall of the crank case. A spring 9 presses the pipe 3 upwards until a flange 7a rests against the lower end of the sleeve 4. When a reading is required, the pipe 3 is pressed down as far as possible into the liquid and the pressure upon the air in the pipe is indicated on the gauge 10. In a modification, Fig. 3, not shown, the gauge 10 is carried directly upon the upper end of the pipe 3. The pipe 3 may be graduated for use as a dipping rod if the liquid is too viscous to operate the air pressure indicator.
Patent GB-733960-A (GB)
Title: Improvements in or relating to jacquard machines
Inventor: FIELDING ANTHONY BIRCHENALL
IPC: D03C3/24
Filed: 1953-06-23
Abstract: 733,960. Jacquards. DEVOGE & CO., Ltd. June 23, 1954 [June 23, 1953], No. 17316/53. Class 142(2). Re-timing of the movements of the cylinder relative to the griffes when a jacquard is reversed for pick finding is effected by lost motion in the drive to the cylinders. A sprocket E (or other member) loose on a shaft c drives the shaft through an arm F having a pin f projecting into a slot e in the sprocket ; when the drive is reversed, the sprocket rotates idly until the other end of the slot engages the pin. Adjustable stops may be provided in the ends of the slot or two projections on the sprocket may be provided instead of a slot.
Patent GB-638921-A (GB)
Title: Mouth organ
IPC: G10D7/12
Filed: 1947-07-01
Abstract: 638,921. Mouth organs. BIBUS, H. July 1, 1947, No. 17338. Convention date, July 2, 1946. [Class 88 (ii)] A series of slide valves 11 ... 13 having apertures arranged in various patterns are positioned between the mouthpiece 14 and the reed bank 1, each slide being movable laterally to complete paths for the airstreams for different combinations of reeds so that different chords can be sounded according to the positions of the slides. The slide-valves are mounted on bows 7...9 whose lateral positions are controlled by finger levers 16, 17. The instrument may have two banks of reeds, one for melody and the other for harmony, the slide-valves each being provided with two sets of apertures, the first set containing apertures corresponding to every melodic reed position and the second being according to the abovedescribed pattern for the harmonic bank. A slidable mouthpiece having two channels is then provided one of which feeds two apertures one octave apart for use with the melodic bank, and the other covering the rest of the octave for use with the harmonic bank.
Patent GB-774301-A (GB)
Title: Improvements in or relating to the starting of internal combustion engines
Inventor: JAMIESON GILBERT
IPC: F02N99/00
Filed: 1954-06-12
Abstract: 774,301. Starting ; engine turning gear. RUSTON & HORNSBY, Ltd. Nov. 8, 1955 [June 12, 1954], No. 17339/54. Class 7 (5). A readily-ignitable fuel is fed into a normally-closed air-inlet pipe 12 leading into the induction pipe 11 of a compression-ignition engine, and the fuel is ignited in the pipe 12 so that when, in starting, the pipe is opened air is drawn through the pipe, is burnt up and is mixed with the normal air stream passing through the pipe 11 to heat that air stream. The fuel may be fed from a hand-operated pump to a spray nozzle 23 opening in proximity to an igniting means consisting of a hot wire 24 or a sparking plug. The pipe 12 contains a valve 15 normally closed and opened only during starting. The fuel may be fed by a venturi 14 within the pipe. Actuation of a single switch 25 may energize an electric starting motor 21, open the valve and energize the igniter, the valve being opened by a solenoid 19. Hot air from the combustion pipe may flow in a jacket around the intake pipe so as to heat the intake air, in which case some other means may be provided to cause the flow of air.
Patent GB-823840-A (GB)
Title: Improvements in alicyclic tetracarboxylic acids and their derivatives
IPC: C08G59/42
Filed: 1958-05-30
Abstract: The invention comprises 1-trans, 2-cis, 4-trans - tricarboxy - 3 - cis - carboxymethyl cyclopentane and its dianhydride.  The acid may be prepared by oxidizing 5- or 6-hydroxy-5,6-dihydro-exo-dicyclopentadiene or a carboxylic acid ester thereof and the dianhydride by dehydrating the acid with any of the usual chemical dehydrating agents.  The alcohol reactant may be obtained by treating dicyclopentadiene with 20-25% sulphuric acid as described in J.A.C.S. 67, 723-8 and its esters may be prepared in the conventional manner. The oxidation is preferably carried out using 30-75% aqueous nitric acid at 30-60 DEG  C. in the presence of an oxidation catalyst such as Co, Ni, V or the oxides of V, Ta, Pb, Mn, Co, Cr or Mo and also in the presence of traces of sodium nitrite which tends to promote the reaction by the formation of nitrous fumes.  The acid may be isolated by concentrating the reaction mixture after the exothermic reaction has ceased so that the acid crystallizes out. In the examples:  (1) the alcohol is run into a mixture of 70% nitric acid, V2O5 and NaNo2 at 60 DEG  C. over 12 hours, the mixture kept at 60 DEG  C. a further 2 hours and the acid isolated by concentration; (2) the acid is similarly prepared at 55 DEG  C. in the absence of a catalyst; (3) the acid is similarly prepared at 55-60 DEG  C. from the acetate ester of the alcohol in the absence of a catalyst; (4) the dianhydride is obtained by treating the acid with 20 parts of acetyl chloride at room temperature for 3-5 weeks.  The dianhydride may be used as a curing agent for epoxy resins (see Group IV (a)).ALSO:Epoxy resins are cured by mixing the resin with the di-anhydride of 1-trans-2-cis-4-transtricarboxy - 3 - cis - carboxymethylcyclopentane (see Group IV (b)) at a moderate temperature at which any reaction between the resin and the di-anhydride is slow and then heating the mixture to a temperature at which reaction occurs or at which it occurs at a substantially higher rate, whereby the cure is effected. An example is given using a resin derived from epichlorohydrin and 4,41-isopropylidene diphenol.
Patent GB-220770-A (GB)
Title: Improvements in connection with "loud speaking" telephonic receivers
IPC: H04R1/30
Filed: 1923-07-05
Abstract: 220,770. Johnson, C. H. July 5, 1023. Sound-magnifying appliances.-A resonating- device of the reed type fitted into the sound passage of a loud-speaking telephone comprises a split brass tube B<1> having a tightly fitting flange B<2>, or in a modification, a tube having a closed end and one of more holes into which are fitted reeds of different frequencies.
Patent GB-560362-A (GB)
Title: Improvements in bi-metallic temperature-responsive devices
IPC: G01K5/64
Filed: 1942-12-08
Abstract: 560,362. Thermostats. EDWARDS, L. W. C. Dec. 8, 1942, No. 17481. [Class 64 (ii)] [Also in Group XX] In a temperature-responsive device having a bimetallic helix 6, the anchored end of the helix is secured to a split steel ring 2 by fingers 4, 5 which are bent over it. The end of the helix is spot-welded under the finger 4 to ensure that the free portion of the helix beyond the finger 5 is not affected by the welding heat, as described in Specification 559,288. The ring 2 is inserted in a holder 1 and is gripped by driving in a plug 7. The free end of the helix 6 is bent into a diametral , slot in a member 9 which carries a pointer spindle 8.
Patent GB-1088173-A (GB)
Title: Improvements in or relating to magnetohydro dynamic generators
Inventor: CHAPMAN ALAN GEORGE
IPC: H02K44/12
Filed: 1965-04-26
Abstract: 1,088,173. Generators operating by electromagnetic interaction with fluids. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 4, 1966 [April 26, 1965], No. 17523/65. Heading H2A. [Also in Division F4] A nozzle suitable for use in an MHD generator as part of the main gas flow duct to provide a streamline transition between a first part of the duct of circular cross-section and a second part of the duct of rectangular cross-section has walls formed by a multiplicity of tubes which lie side by side with their lengths extending in the general direction of the gas flow along the duct, two of the walls extending substantially parallel to each other and the other walls extending between these two walls and being profiled to substantially arcuate cross-section at the inlet end of the nozzle and substantially flat and parallel cross-sections at the outlet end of the nozzle. As shown, the tubes are of rectangular cross-section and their ends at each end of the nozzle are bent outwards away from the nozzle axis so that these ends lie in the planes of the nozzle entrance and exit openings (at the left and right) respectively, and form flanges which facilitate connection to suitable ducts conveying the gas. The tube ends at the nozzle inlet, and again at the nozzle outlet, are of different lengths so that the flanges are generally circular. The tube ends at the inlet are bent to different radii, and those at the outlet are bent to the smallest practicable radii, so that the cross-section of the inlet and that of the outlet are circular and rectangular respectively. As shown, the two parallel walls are 3 and 5. Preferably, the ends of the tubes at each end of the nozzle are connected to ring headers 11, 13 through which cooling fluid can flow into and out of the tubes. These ring headers are secured to opposite faces of an annular member 21 formed with supply and drain compartments, 23, 25, respectively, for the coolant, and with end flanges 39, 41 for connection to the other parts of the duct.