baber/WOPTO huggingface dataset:
Patent GB-970589-A (GB)
Title: Improvements in and relating to pressurised water nuclear reactors
Inventor: LAWRENCE ARTHUR CHARLES
IPC: G21C1/09
Filed: 1961-08-31
Abstract: 970,589. Reactor pressure vessels. FOSTER WHEELER Ltd. Oct. 5,1962 [Aug. 31,1961], No. 31399/61. Heading G6C. A pressure vessel for a pressurized water nuclear reactor has one or more bores through its wall for the reception of cartride type electrical heaters, there being a closed-end tube disposed coaxially with each bore and welded to the wall, and into which said heaters extend. As seen in Fig. 1, the heater 12 is a large clearance fit in the vessel wall 10 and a close fit in the heater tube 16. A seating 18, 20 is prepared in the wall and the heater tube butt welded into position. In a modification (Fig. 2, not shown) for use on pressure vessels having a thin stainless steel lining inside the main straight carbon steel wall, the stainless steel lining is thickened locally to accomodate a weld preparation as shown in Fig. 1.
Patent GB-874408-A (GB)
Title: Insecticidal and acaricidal powders
IPC: A01N25/14
Filed: 1959-09-15
Abstract: Insecticidal and acaricidal spraying powders include as auxiliaries for the active agent, a fatty alcohol polyglycol ether and a metal salt of a C8-C25 fatty acid.  Specified fatty alcohol polyglycol ethers include the ethers of C8-C25 fatty alcohols containing 2 to 50 glycol radicals, especially those of lauryl, stearyl, palmityl and oleyl alcohols.  The preferred metal salts are those of the alkaline earth metals, aluminium, magnesium, zinc, manganese, copper, mercury and iron.  A list of suitable active insecticides is included in the Specification.  If the active ingredient is liquid a suitable amount of inert material such as kaolin, kieselguhr, bentonite or silicic acid should be present.
Patent GB-684490-A (GB)
Title: Improvements in or relating to fluid pressure control systems and relief valve for use therein
IPC: F15B11/17
Filed: 1949-12-08
Abstract: 684,490. Rotary pumps. BORG-WARNER CORPORATION. Dec. 8, 1949 [Dec. 29, 1948]. No. 31514/49. Class 110(ii) [Also in Group XXIX] A system for supplying pressure fluid, e.g. to a variable pitch propeller mechanism 6 on an aircraft, comprises a first pump 7 driven by the engine and a second pump 8 driven independently of the engine, e.g. by an electric motor, and adapted to be operated when the pump 7 stops, e.g. to feather the propeller blades. Both pumps draw from a tank 5, e.g. warm engine oil, a small flow being fed by pump 7 via a restriction 20 and a check valve 17 to the inlet chamber 13 of a relief valve 12 for the pump 8. From this chamber the oil passes through a port 45 in the relief valve closure member 30, a check valve 50, held open by a spring 53, and a passage 15 to the tank 5, and also via a passage 14 back through the pump 8 itself. Thus the pump 8 and its relief valve are warmed while inactive to prevent congealing of the oil therein. When the pump 8 operates, the flow delivered thereby closes the valve 50.
Patent GB-820882-A (GB)
Title: Improvements in or relating to conveyor rollers
Inventor: ORWIN OLAF JOHN BARCLAY
IPC: B65G39/09
Filed: 1956-10-17
Abstract: 820,882. Ball-bearings. FISHER & LUDLOW Ltd. Oct. 1, 1957 [Oct. 17, 1956], No. 31536/56. Class 12 (1). [Also in Group XXX] In a conveyer roller the outer member 19 of each bearing is formed of a deformable material which, after the insertion of the balls 21, is deformed and shaped to a concave configuration on its inner surface to provide a race track 23 of substantially part-circular form in crosssection. This track embraces partially the balls on both sides of a vertical plane passing through the centre of each ball. A dished end closure member 24 has its outer portion bent around an outwardly extending edge flange on the part 19. Specification 820,881 is referred to.
Patent GB-1287966-A (GB)
IPC: F16B1/04
Filed: 1970-06-30
Abstract: 1287966 Self-locking transmission mechanism; shaft couplings DUFF-NORTON CO Inc 30 June 1970 [15 Sept 1969] 31556/70 Headings F2E and F2U [Also in Division B8] A self-locking transmission mechanism 10 comprises a housing with an interior annular wall portion 62 having a rotatable drive shaft coaxial therewith and a driven shaft coaxially aligned with the drive shaft. A spring strip 56 is disposed in the housing, the strip having an arcuate portion 60 disposed adjacent the wall portion 62, a spacer portion 64 extending inwardly from an end of the arcuate portion, and an inturned end portion 66 extending from the inner end of the spacer portion. A drive element 54 is connected to the drive shaft as through a disc 48 offset from the axis thereof and disposed between the spring strip inturned end portion 66 and the arcuate portion 60 to be engageable with the inturned end portion 66 upon rotation of the drive shaft in one direction to move the spring strip with the drive element 54 and to bias the inturned end portion and the arcuate portion inwardly. The inturned portion 66 on being engaged by the drive element is urged against a transmission block 58 which is connected to the driven shaft for rotation therewith to drive the driven shaft in the one direction of movement. The transmission block 58 has an outwardly inclined surface with respect to the path of rotation of a point on the surface for engaging the inturned end portion on attempted independent rotation of the driven shaft in a direction opposite the one direction to urge the arcuate portion of the spring strip against the annular wall portion to prevent this independent rotation. In the construction shown two spring strips are provided and two pairs of drive elements the arrangement being such that independent rotation of the driven shaft in both directions of rotation is prevented. The action of the spring strips in the aforesaid independent rotation is that the leading inturned end portion is biased upwardly to bring the leading edge of the arcuate portion into frictional contact with the wall portion 62 and the trailing spacer portion is jammed between the wall portion 62 and the transmission block. The self-locking transmission mechanism is disclosed as being incorporated in a self-contained mechanical actuator as disclosed in Specification 1,287,965 which contains a gear transmission (Figs. 2, 3, not shown).
Patent GB-861768-A (GB)
Title: Improvements in punching, shearing and cropping and similar machines
IPC: B21D22/00
Filed: 1958-10-03
Abstract: 861,768. Punching; shearing. JACKSON Ltd., A. N., and JACKSON, A. N. Sept. 24, 1959 [Oct. 3, 1958], No. 31567/58. Class 83 (4). A punching, shearing &c., machine comprises a slide A<SP>2</SP> driven through a link A by an eccentric E, and a control G movable between adjustable stops H, H<SP>1</SP> to transfer the link A between an operative position in which its flat end a<SP>1</SP> cooperates with a bearing K on the slide A<SP>2</SP> and an idling position depicted in broken lines. The bearing K is rotatable in the slide to follow the rocking movements of the link. Connection between the hand lever G and link A is by links B and a lever G which is biased by a weight D towards the idling position of the link A.
Patent GB-253436-A (GB)
Title: Improvements relating to the transport and distillation of mineral oils, tar oils and tars
IPC: C10G7/00
Filed: 1925-12-15
Abstract: 253,436. Heyl, G. E. Dec. 15, 1923. Hydrocarbons, distilling. - The disbillation of crude mineral oils. tar oils or tars to separate light fractions and leave fuel oil is carried out on board tank steamers or tank barges, by fitting the tanks or compartments of the tanks with steam-heating devices such as coils. The tanks or the compartments are heat insulated. The vapours pass to a condenser from which condensate may be collected in fractions. The tanks are heated bv exhaust steam or bv steam from the engine boilers or from a separate steam-generator.
Patent GB-757186-A (GB)
Title: Improvements in hand trucks
Inventor: MARCUSSON SVEN ERIK
IPC: B62B3/04
Filed: 1954-11-02
Abstract: 757,186. Hand trucks. MARCUSSONS TRANSPORTVAGNFABRIK AKTIEBOLAGS. Nov. 2, 1954, No. 31639/54. Class 108 (1). A toe-plate truck comprises side members 1 interconnected by tubes 2, rear wheels 23 on a pivoted frame 24 which may be varied in position by a manual releasable device 25, and a slideway 19 consisting of a rectangularsectioned tube open at the top and provided with a slot 31 for guiding a sliding load gripping member 32. The member 32 is provided with a hook 33, and abutments 36 for engaging beneath the flanges 37 of the slideway 19, or the member may be extended by links similar to the arm 35, each link being provided with abutments at the pivot points so that the member 32 may be pulled out further from the slideway and passed rope fashion over a load to engage the hook 33. The arms 34, 35 may be of different lengths in the one member 32, or different members may have different arm lengths. Alternatively two closely adjacent slideways may be provided, each containing a gripper, but one gripper is of different size and shape from the other, and only one is used at a time. A supporting frame 10 may be detachably mounted on the truck when wheeling sacks &c., the frame 10 being held in position by a spring-loaded bolt 40.
Patent GB-977038-A (GB)
Title: Electric cables
Inventor: LEMON FRANCIS WILLIAM
IPC: B29C48/12
Filed: 1962-08-17
Abstract: 977,038. Electric cables. STANDARD TELEPHONES & CABLES Ltd. Aug. 17, 1962, No. 31658/62. Heading H1A. An electric cable is enclosed in a corrugated metal tube with an adherent coating of plastic on its outer surface and an outer plastic sheath bonded to the adherent plastic coating. In the arrangement shown the aluminium strip has a thin polythene layer on its lower surface and is passed between corrugating rollers 33 and then to further rollers 4, 4 which fold it around the cable 2. The core and tube then pass through an extruder 7 which encloses them in an outer polythene sheath 7 bonded to the corrugated layer. The layer on the strip may be applied by pressing a polythene layer to the heated aluminium strip or coating the strip with a solution of polythene and xylene and evaporating the xylene. The ends of the corrugations may be offset so that the sides of the tube do not slide over each other and the corrugations may pass helically round the cable. The other side of the aluminium strip may also be polythene coated.
Patent GB-430875-A (GB)
Title: Improvements in and relating to arrangements for electric braking of three-phase alternating current electric motors
IPC: H02P3/24
Filed: 1934-11-05
Abstract: 430,875. Control of A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin) Nov. 5,1934, No. 31729. [Class 38 (iii)] Non - regenerative braking.- For braking a three phase motor having chorded stator windings, the stator circuit is connected in delta open at one point, and fed there with direct current, parts V-Wa, W-Va, and U-Va of the stator winding being short-circuited to avoid opposing currents in superimposed coil sides. The motor may be arranged for polechanging to give low and high speeds, and the direct current may be obtained from an alternating current source through a rectifier a.
Patent GB-976837-A (GB)
Title: Bis- (thioether amide) derivatives
IPC: G03C1/09
Filed: 1960-12-02
Abstract: The invention comprises non-polymeric photographic sensitizers of the formula:- <FORM:0976837/C1/1> wherein R represents a methylene group, an alkyl-substituted methylene group or a cyclohexylene-p,p1 -bis-methylene group, R1 represents a hydrogen atom or a methyl group, and R2 represents an alkoxy alkyl, alkoxyalkoxyalkyl, hydroxyalkyl, hydroxyalkoxyalkyl, hydroxyalkoxyalkoxyalkyl, aryloxyalkyl, phenoxyethoxyethyl, H2N.NHCOCH2- or CH2=CH-CH= N.NHCOCH2-group.  The above compounds are prepared (1) by adding a mercaptan R2SH across an olefinic double bond of a compound of the formula CH2=C(R1)CONH-R-NHCOC(R1)=CH2 in the presence of a basic catalyst; (2) by reacting an R2 halide with a thioacetate of the formula CH3COSCH2CH(R1)CONH-R-NHCOCH(R1) CH2SCO.CH3 in the presence of a base which will hydrolyse the latter to the intermediate base salt of HSCH2CH(R1)CONH-R-NHCOCH(R1)CH2 SH; (c) by reacting hydrazine with a compound of the formula C2H5O.CO.CH2SCH2CH(R1)CONH -R-NHCOCH(R1)CH2SCH2CO.OC2H5; (d) by reacting acrolein with a hydrazide of the formula H2N.NHCOCH2-S-CH2CH(R1)CONH-R -NHCOCH(R1)CH2-S-CH2CONHNH2; and (e) by reacting 2-mercaptoethoxyethane with bis-1, 4-(chloroethylcarbonylamidomethyl)-cyclohexane.  Bis-1, 4-(chloroethylcarbonylamidomethyl)-cyclohexane is prepared by adding bis-1, 4-(aminomethyl) cyclohexane dropwise to b -chloropropionyl chloride in dry ether.  Isopropyl N,N1-(methylene-bis-acrylamide) is prepared by warming acrylamide and isobutyraldehyde in aqueous hydrochloric acid.
Patent GB-1249011-A (GB)
Title: Method for producing a chocolate product and device for carrying out this method
IPC: A23G1/54
Filed: 1969-06-24
Abstract: 1,249,011. Moulding chocolate. CHOCOLAT TOBLER A.G. 24 June, 1969 [28 June, 1968], No. 31740/69. Heading B5A. A mixture of liquid chocolate and solid particles, e.g. nut splinters, raisins, is placed in a mould having recesses arranged randomly throughout its inner surface of a shape and size corresponding to that of the particles whereby to produce a moulded product with raised portions corresponding to the particles.
Patent GB-391884-A (GB)
Title: Method of and apparatus for cleaning spinning frames
IPC: D01H11/00
Filed: 1931-11-17
Abstract: 391,884. Cleaning machinery pneumatically. TEXTILE ILLUMINATING & ENGINEERING CO., Ltd. and SUTCLIFFE, R., Victoria Works, Whitefield, Lancashire. Nov. 17, 1931, No. 31777 and 31933. [Class 8 (ii).] Lint and fluff are removed from a spinning machine by blowers comprising double tubes A, D one of which is fixed and has a longitudinal slot while the other is rotated and formed with a helical series of slots or holes successively co-operating with the fixed slot. The rotation may be effected by rollers E, E<1>, a sprocket wheel engaging holes in the tube or a toothed wheel engaging a like wheel on the tube. Specification 148,614, [Class 8 (ii), Air and gases, Treating &c.], is referred to.
Patent GB-318156-A (GB)
IPC: G03B21/16
Abstract: 318,156. Cocriamont, J. Aug. 28, 1928, [Convention date]. Optical-projection apparatus.-Means for cooling the light beam comprises a container a for water or other liquid having transparent windows b c and mirrors d<1> - - d<4>. The light beam is reflected as indicated, and enters the container through the window b, as a convergent beam. The mirror d' is convex, and the other mirrors are plane. The emergent beam is divergent and may pass through a condenser e.
Patent GB-192538-A (GB)
Title: Improvements in domestic stoves
IPC: F24B5/02
Filed: 1921-11-28
Abstract: 192,538. Bakkekilde, R. S. Nov. 28,. 1921. Closed solid-fuel stoves; heat-radiators; outlets to chimneys.-A domestic stove is provided at the top with channel or like shaped strips 50 having sliding engagement with flanges 49 on thelower end of a flue pipe 3 secured to a plate 48 over the fireplace, thus allowing the stove to be removed. The closed solid-fuel stove shown is supported on rollers 44. The gases pass down and up the flues 45, 46 to the outlet, but on starting the fire are passed directly to the outlet by opening the damper 51.
Patent GB-162030-A (GB)
Title: Improvements in or relating to the purification of zinc solutions
Filed: 1919-12-19
Abstract: A zinc-sulphate or other zinc solution is freed from foreign metals by treatment in the presence of a mercury salt with a subdivided metal electro-positive to the impurities.  Zinc, aluminium, and alloys thereof are suitable electro-positive metals; they may be powdered or granulated, zinc fume or blue powder being advantageous. The mercury as mercuric chloride or nitrate, or, when zinc is to be electro-deposited, as mercuric sulphate, may be added as a solution or directly dissolved in the zinc solution before the treatment or at any suitable prior stage. Two pounds of mercury in the form of sulphate, and 40lb. of zinc, suffice for 10 tons of crude zinc solution.  This may be obtained from ore by treatment with spent electrolyte or other solution, and before the purification is brought to an acidity of 0.1-0.2 per cent, by means of incomplete neutralization, or by neutralization for the removal of silica, &c. followed by acidification.  During the purification the liquid may be heated to 70-100 DEG  C. and gently agitated.  Copper, arsenic, antimony. bismuth, cadium, nickel, cobalt, and other metals are precipitated as a sludge, from which mercury can be recovered by distillation or otherwise.  Iron may be removed before or after the above purification.  If aluminium is used as the electropositive metal, it may be subsequently removed, but is not injurious in the electrodeposition of zinc.  Specification 138,950 is referred to.
Patent GB-863744-A (GB)
Title: Porous membranes and methods of manufacturing these membranes
Inventor: MOUTAUD GILBERTE
IPC: C08K5/05
Filed: 1958-10-07
Abstract: 863,744. Coated metal wire fabrics. COMMISSARIAT A L'ENERGIE ATOMIQUE. Oct. 7, 1958 [Oct. 15, 1957], No. 31989/58. Addition to 849,837. Class 140. A porous membrane is produced by coating a corrosion-resisting metal wire fabric with a paste formed by mixing a polytetrafluoroethylene powder with at least one wetting substance of the group consisting of ethyl, methyl, isopropyl, butyl, isobutyl or isoamyl alcohol, cyclohexanol, acetone and acetic acid, fixing said paste in and on the fabric, and eliminating therefrom all the constituents of the paste with the exception of the polytetrafluoroethylene. The powder may be thoroughly mixed with an excess of ethyl alcohol, after which the excess of alcohol is removed so that the paste finally contains only about 40 % alcohol. The paste thus formed may be immersed in boiling alcohol after which the excess of alcohol is again removed until the proportion of alcohol in the paste is only 40% by weight. The paste may be treated by a solvent to extract therefrom the impurities initially present in the polytetrafluoro ethylene powder.
Patent GB-1028580-A (GB)
Title: Vibrator-rammer for compacting soil
IPC: E02D3/074
Filed: 1963-08-13
Abstract: 1,028,580. Vibratory mechanisms. HEUSSER - DELMAG A.G. Aug. 13, 1963 [Aug. 16, 1962], No. 32005/63. Heading F2X. [Also in Division E1] A vibratory rammer for compacting ground surfaces comprises a body portion 1, of inverted U-shape cross-section, in which are journalled crank-shafts 4a, 4b having end cranks 41a, 41b supporting a trough-like punner 2 and centre cranks 43a, 43b carrying a counterweight 3. The crank-shafts carry toothed gears 5a, 5b meshing a common gear 6 and are driven from an internal - combustion engine 8 through a reversing gear 7. The end cranks 41a, 41b are displaced 180 degrees with respect to the centre cranks 43a, 43b.
Patent GB-791861-A (GB)
Title: Improvements in or relating to bread improvement
Inventor: LONGWORTH FRANK
IPC: A21D2/36
Filed: 1952-12-17
Abstract: Improvers for incorporation into bread doughs are made by comminuting raw leguminous seeds, e.g. soya beans, haricot beans, peas or broad beans, or the separated radicle and/or husk of such seeds, mixing therewith an alkali metal, ammonium or alkaline earth metal halogen acid salt or sulphate, e.g. sodium chloride, calcium sulphate, or a slurry or concentrated solution of such a salt to form a non-liquid mixture, and heating this mixture at a temperature insufficiently high to impair its enzyme content.  A proportion of the comminuted seed product, preferably not more than 90 per cent, may be replaced by cereal flour.  A fat, a fatty acid ester such as glyceryl monooleate or glyceryl monostearate, sugar, or malt may be incorporated before the heating. Specifications 727,641, [Group I], and 784,831 are referred to.
Patent GB-939899-A (GB)
Title: Magnetic core data storage unit
IPC: G11C19/06
Filed: 1962-08-22
Abstract: 939,899. Magnetic storage apparatus. AMP Inc. Aug. 22, 1962 [Aug. 22, 1961], No. 32213/62. Addition to 894,025. Class 40 (9). As shown in Figs. 1 and 3, axially aligned columns of multi-apertured storage cores 3 supported in slots in an insulating panel 2 are overlaid on each side by further panels 13, the panels being spaced by side posts 17 and secured by central posts 9. The panels may be formed of epoxy glass material with incorporated terminals 8, and may either be permanently secured together by phenolic or epoxy cement or detachably joined by forming each central post with terminating flanges and fitting circlips 15. When used as a recirculating shift register, one of the further panels may be replaced by a panel 13<SP>1</SP>, Fig. 5, the recirculating connections being formed by inset insulated copper strips 18, 19 which are connected by leads 21, 22 to the inlet and outlet terminals of the unit.
Patent GB-906268-A (GB)
Title: Improvements relating to centrifugal separators
IPC: B04B7/06
Filed: 1958-10-09
Abstract: 906,268. Centrifugal strainer separators. AMETEK Inc. Oct. 9, 1958 [Oct. 9, 1957], No. 32268/58. Class 46. A centrifugal strainer separator has a cover for an aperture in its housing, the cover being locked to prevent access to the interior of the separator whilst the basket is rotating by mechanism governed by the basket-driving assembly. When a push-button switch 42, Fig. 3, is closed, a motor 25 (see also Fig. 2) begins to drive at constant speed a variablevolume positive-displacement hydraulic pump 21. At zero delivery a constant-displacement hydraulic motor 16 connected to the pump by lines 22, 23 remains at rest and so also does the basket (not shown) to which the motor is connected by a Vee-belt drive (not shown). A gear pump within pump 21 forces pressure liquid along lines 24, 33, Fig. 3, at constant pressure to move a piston 30 and rod 31 to the left away from the hinged cover 27 of the separator top plate 26. When the delivery of pump 21 is increased, the basket begins to rotate, and the consequent pressure rise in lines 23, 36, 40, Fig. 3, exceeds the constant pressure in lines 24, 33 so that piston 30 is forced to the right to lock cover 27 by rod 31. On reduction of the delivery of pump 21 high pressure now exists in lines 22, 35, 40 so that rod 31 is maintained in its right hand position. When the delivery of pump 21 is again reduced to zero, the constant pressure in lines 24, 33 again forces piston 30 to the left. When cover 27 is opened a limit switch 28, Figs. 2 and 3, breaks the circuit of motor 25. Housing 12 is supported oscillatably by brackets 13 in pedestals 11, Fig. 2.
Patent GB-383424-A (GB)
Title: Improvements in multi-phase condensers
IPC: H01G4/38
Filed: 1931-11-20
Abstract: 383,424. Condensers. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Nov. 20, 1931, No. 32272. Convention date, Dec. 30, 1930. [Class 38 (ii).] A multi-phase condenser, shown as threephase, has the stacks 3, 4, 5 pertaining to the various phases clamped by endplates 14, 15 and conducting tie-rods 12. The phase connections are made to plates 6, 7 held between the stacks, and to a plate 11 electrically connected to the outer end of stack 5 by the tierods 12.
Patent GB-172208-A (GB)
Title: Improvements in ball bearing casters
IPC: B60B33/08
Filed: 1920-11-16
Abstract: 172,208. Kirschke, F. Nov. 16, 1920. Castors.-A ball castor comprises a primary ball 8, a secondary ball 10 and a series of antifriction balls 11 interposed between the two. The castor is provided with a shank 3 having frictional means for engagement in a socket, consisting of springs 5 projecting through slots 4.