baber/WOPTO huggingface dataset:
Patent GB-511917-A (GB)
Title: Improvements in and relating to electric contacts
IPC: H01R13/193
Filed: 1938-12-23
Abstract: 511,917. Contact members for switches and couplings. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 23, 1938, No. 37412. Convention date, Dec. 24, 1937. [Class 38 (v)] An electric contact comprises two substantially rigid jaws pressed together by a single resilient strip which unites them away from where they receive the co-operating blade. An insulating terminal block 14 has a part 14b which projects through the wall 15-17 of an oven and has a number of cavities 20 each of which contains a pair of contact jaws 22. Each contact jaw 22 comprises a base part 23 to which one end of a spring strip 25 is welded, adjacent jaws being pressed together by the spring 25. Upon a blade 24 being pressed between the jaws, the pressure is reduced by the spring 25 bending about the edges of a fibre strip 31 which extends across the springs of all the sets of contacts. The spring is at the coolest part of the contact and carries little current. Electrical connection is made to the contact by means of a screw 26.
Patent GB-839900-A (GB)
Title: Improvements in or relating to devices for transporting loads
IPC: B62B3/06
Filed: 1957-12-02
Abstract: 839,900. Hand trucks. GERMAIN, J. Dec. 2, 1957 [Nov. 30, 1956; Nov. 22, 1957], No. 37490/57. Class 108(1) A pair of wheeled devices 2, 3 for inserting under a load 1 are secured together by a flexible band 15 passing round pulleys 10 pivoted to the side plate 6 of the devices. The devices may be fitted with castors 8 or with fixed axle wheels 11 and rollers 13 facilitate the engagement of the devices with the load. An arrangement is also described where a chain is used between the two devices to draw them together and thereby raise the load on to them.
Patent GB-925709-A (GB)
Title: Improvements in or relating to sources of radiation comprising a luminescent layer
IPC: C09K11/71
Filed: 1959-11-05
Abstract: 925,709. Luminescent materials; discharge lamps. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 5, 1959 [Nov. 8, 1958], No. 37567/59. Drawings to Specification. Class 39 (1). A source of radiation comprises the combination of a gas and/or vapour discharge tube, such as a low pressure mercury vapour discharge tube, and a luminescent layer on support means, in which the layer contains a phosphate activated with monovalent copper and, if desired, with bivalent manganese, if the composition. in which Me represents at least one of the elements Al, Mg, Zn, Cd and B, and in which x, y, z, p and q are subject to specified numerical conditions. A layer, e.g. of titanium dioxide, for reflecting light emitted by the luminescent layer can be provided on part of the tube envelope between the luminescent layer and the envelope. The luminescent material can be prepared by mixing specified compounds of the desired elements and heating for 1 to 2 hours in a non-oxidizing atmosphere, for example a reducing atmosphere of nitrogen or a mixture of nitrogen and hydrogens, at a temperature between 1000‹ and 1250‹ C. A mixture of strontium hydrogen phosphate or de-ammonium hydrogen phosphate and strontium carbonate can be used for the introduction of strontium and of the phosphate group. Copper sulphate in cupric form can be used for the introduction of copper, and the heating is carried out in a neutral or reducing atmosphere. Manganese, if used, can be introduced as MnNH 4 F 3  or other specified compounds. Several specific examples are described.
Patent GB-1176807-A (GB)
Title: Improved Adjustable Garment Fastener.
Inventor: JONAS WALTER MONROE
IPC: A44B11/12
Filed: 1967-08-16
Abstract: 1,176,807. Suspenders; buckles. MAID-RITE NOVELTIES (G.B.) Ltd. [16 Aug., 1967], No. 37682/67. Headings E2A and E2B. A garment fastener adjustable along a strap 29 passed through slots 18 and 21 in a frame 11 has a plastics retaining member 13 with a grooved thickened end portion rotatably engaging an end bar 19 of the frame 11 to clamp the strap against one side of the a bar 20 separating the slots by means of a projection 34. The frame has a keyhole slot which is engageable with a button 26 on a tab secured to a bar 23 on the frame 11. Alternatively the frame comprises a buckle slidable on the strap a fixed length of which is attached to the bar 23.
Patent GB-922839-A (GB)
Title: Monoazo compounds containing naphthatriazole residues
IPC: C07D249/22
Filed: 1959-11-06
Abstract: The aminotriazole of formula <FORM:0922839/IV(a)/1> is prepared by coupling diazotised p-nitroaniline with 8-aminonaphthalene-1 : 3 : 6-tri (sodium sulphonate), oxidising the aminoazo compound with cupric sulphate and ammonia to form the p-nitrophenyl-1 : 2-naphthotriazole and reducing this with iron and acetic acid.  The aminotriazoles of formula <FORM:0922839/IV(a)/2> are similarly prepared.ALSO:The invention comprises compounds of formula <FORM:0922839/IV(a)/1> wherein R1 is a phenylene radical substituted by at least two hydrogen atoms which may be also substituted by chlorine atoms or methyl, ethyl, methoxy or -SO3M groups, M being alkali metal, R2 is a phenylene radical substituted by at least two hydrogen atoms which may also be substituted by chlorine atoms or methyl, ethyl, methoxy or carboxy groups, Z is a methyl or ethyl radical and n is 1-4 at least one but not more than three of the SO3M radicals being located in the naphthalene nucleus. They are prepared by diazotizing a suitable aminotriazole compound and coupling with an N-methyl- or -ethyl-aniline.  These compounds may be reacted with a cyanuric halide to give a primary condensation product which may be condensed with an equimolar amount of a hydroxy, mercapto or amino compound to give secondary condensation products, both the primary and secondary compounds being used as reactive dyes giving greenish-yellow to yellow shades on cellulose, wool, silk, nylon and polyvinyl alcohol film.  The order of the condensations with the cyanuric halide may be reversed.  In examples: (1) the aminotriazole compound of formula <FORM:0922839/IV(a)/2> is diazotized and coupled with N-methylaniline; (2) the aminotriazole of formula <FORM:0922839/IV(a)/3> is diazotized and coupled with N-methylaniline and the aminoazo dye formed is condensed successively with cyanuric chloride and aniline; (3) the diazotized aminotriazole specified in (1) is coupled with N-methyl-m-toluidine and the aminoazo dye obtained is condensed with the primary condensation product from cyanuric chloride and sodium metanilate; (4) the aminoazo dye specified in (1) is condensed with cyanuric chloride and the primary condensation product is further condensed with aniline, diethanolamine or 3-methoxypropylamine; (5) the aminoazo dye specified in (1) is condensed with the primary condensation product of cyanuric chloride and sodium metanilate or 2-amino-p-benzenedisulphonic acid.  Alternative reactants are specified in further examples.
Patent GB-985161-A (GB)
Title: Glass
Inventor: MAZO ESFIR EFRAIMOUNA
IPC: C03C3/112
Filed: 1963-09-25
Abstract: An opal glass has the composition in percentages by weight: SiO2, 59.1-60.3; Al2O3, 8.5-9.5; CaO, 1.39-1.4; SrO, 0.5-3.0; ZnO, 2.0-4.0; Na2O, 16.0-16.3; ZrO2, 2.5-5.0; AlF3.3NaF, 5.0-6.0.  The glass may contain a small quantity of MnO (e.g. 0.04%) to aid its colour.  The glass is melted at 1450-1470 DEG  C. and has an annealing temperature of 600-620 DEG  C.
Patent GB-1133535-A (GB)
Title: Improvements in or relating to razor blades
Inventor: CARLEN JAN-CHRISTER HENRIC OVE
IPC: B26B21/58
Filed: 1967-08-16
Abstract: 1,133,535. Alloy steels. SANDVIKENS JERNVERKS A.B. Aug.16, 1967 [April 4, 1967; June 19, 1967], No. 37802/67. Heading C7A. A razor blade is formed from alloy steel consisting, in per cent by weight, of Be 0 - 1 Fe and impurities - balance. The C content and Cr + ¢Mo + “W lie within the area ABCDEFA of the diagram. Razor blades are manufactured as follows: (i) the steel is cold-rolled in strip form and then shaped, e. g. punched, (ii) the strip is hardened at 1050‹ - 1150‹ C. and then cooled to room temperature or lower, e. g.- 20‹ to - 120‹ C., (iii) the cutting edges are shaped (e. g. by grinding) after optional tempering at 75‹ - 125‹ C., and (iv) the material may be tempered at up to 400‹ C.
Patent GB-880901-A (GB)
Title: A micro-adjusted boring, turning or milling tool
IPC: B23B29/034
Filed: 1956-12-12
Abstract: 880,901. Milling, boring &c. tools. SYKES, C. L., and HEPWORTH, J. C. March 12, 1958 [Dec. 12, 1956], No. 37914/56. Class 83 (3). In a tool-holder for boring, milling, turning, &c. the tool 7 screws at 9 in a bush 3 which screws into a tapped bore of the holder 1, the internal and external threads of the bush being of slightly different pitch so that, with rotating of the tool prevented by a key 5 engaging a flat thereon, rotating of the bush gives a fine adjustment of the tool. Adjustment is facilitated by graduations on the sleeve at 11, and rapid adjustment may be effected by rotating the tool within the sleeve, the key 5 being removed. The tool and bush are clamped by a screw 8 having a chamfered head 15 co-operating with a split bush 17 engaging the bush 3. The tool may be inclined to the holder-axis as shown, or perpendicular thereto.
Patent GB-1116789-A (GB)
Title: Felt cleaners for paper making machines
IPC: D21F1/32
Filed: 1966-08-24
Abstract: A felt conditioner - for example a suction box, felt conditioning shoe, Uhle box, or Scofield conditioner - has the felt contacting surface formed of a dense ceramic material.  The materials listed include carbides, borides, and oxides, which may be self-, nitride-, or metal bonded, or may be impregnated with molybdenum disilicide. In the example given a tube of self-bonded silicon carbide is fixed to each edge of a tubular suction box.  The conditioner may include water spraying means.
Patent GB-327153-A (GB)
Title: Improvements in rotary compressors, exhausters, engines, pumps and the like
IPC: F04C18/348
Filed: 1928-12-22
Abstract: 327,153. Feuerheerd, E., and Malcolm, J. A. Dec. 22, 1928. Fixed-abutment type; discharge passages for pumps; valves, cut-off. - Engines or pumps of the crescent type have hollow ported rotors with movable or flexible flaps forming non-return valves. In the form shown, the rotor 1 has hinged vanes 12 and perforations 15 leading to the hollow interior 16 and covered by a band 22 of metal or leather cut to form flaps 23. The vanes engage an idling drum 7 mounted on bearings 10, 11 on end blocks 4, 5. The suction block 5 has a channel 25 and ports 27 leading to ports 26 in the rotor, while the interior 16 has slots 17 leading to a channel 18 in the shaft 2 on the delivery side. The rotor may be made up of segments with a peripheral ring in sections which cover the ends of the rotor grooves to secure the vanes.
Patent GB-1401063-A (GB)
Title: Method of generating power
IPC: C09K5/04
Filed: 1972-08-16
Abstract: 1401063 Vapour power plant E I DUPONT DE NEMOURS & CO 16 Aug 1972 [17 Aug 1971] 38206/72 Heading F1Q In a method of generating power by heating and vaporizing a working substance, expanding the  vapour in an engine to do work and after doing the work condensing the vapour and recycling, the working substance, consists essentially of at least one halogenated benzene of the formula C 6 H a Ch b  F c  in which a is 1 or 2b is 3 or 4 and c is 1 or 2 and a + b + c=6. The working substance may consist of mixed isomers of trichlorodifluorobenze. The working substance may be subjected to centrigugal force during the steps of heating and condensing and may be recycled by centrifugal force. The specification comprises details of various working media which can be employed and describes the way in which they can be prepared. The Divisional Specification 1401064 is referred to.
Patent GB-993573-A (GB)
Title: Improvements in or relating to a tiltable converter for refining crude iron
IPC: B22D7/02
Filed: 1962-10-10
Abstract: 993,573. Metallurgical converters. VEREINIGTE OSTERREICHISCHE EISENUND STAHLWERKE. Oct. 10, 1962 [May 15, 1962], No. 38427/62. Heading F4B. A tiltable metallurgical converter has three supporting elements 4, 4<SP>1</SP>, 4<SP>11</SP> mounting it on a horseshoe-shaped trunnion member 2 having trunnions 3. One supporting element 4 is located in the tilting plane of the converter and the angles between radial planes through the supporting elements are 120 degrees. The supporting elements comprise axle journals welded to the converter shell 1 and formed by frusto-conical parts 5 and rectangular section or cylindrical portions 6 which are supported in recesses 8 of the trunnion member 2. The two recesses 8 at the ends of the trunnion member 2 are open (see Fig. 3) so that a movable lifting device 11 may lift the converter and move it out of the trunnion member.
Patent GB-1533760-A (GB)
Title: Bearing assembly
IPC: F16C27/02
Filed: 1976-09-17
Abstract: 1533760 Bearings CARRIER CORP 17 Sept 1976 [3 Oct 1975] 38633/76 Heading F2A A shaft bearing assembly comprises a bearing housing 15 having a central opening located therein, a movable bearing support 20 which is resiliently suspended on flexure springs 23 within the housing opening to establish a fluid squeeze film cavity 30 between the housing opening and the outer periphery of the support, a removable end cover 40 extending between the support and the housing enclosing the cavity and providing access to said cavity whereby the cavity can be shimmed to a predetermined geometry during assembly, a seal 50 operatively associated with said cover for preventing fluid escaping from the cavity, said seal being positioned outside the cavity region to permit shimming of said cavity, and means 16 to secure the housing to a machine frame. A method of setting up the assembly comprises positioning the support within the housing, shimming the cavity such that the support is centred within the housing, attaching the support to the housing by means of its mounting ring 22, pinning the housing to the machine frame with the cavity centred in relation to the shaft 11, removing the assembled support and housing from the machine, removing the shims from the cavity, sealing the cavity, and repinning and securing the housing to the machine frame. The bearing may comprise tilting pads 31. Pressure fluid is delivered to the squeeze film cavity from an annular passage 60. A pair of helper springs 46 are positioned within peripheral grooves 47 formed in the housing; the springs help to support the dead weight of the rotor structure while maintaining the predetermined clearance in the cavity.
Patent GB-852674-A (GB)
Title: Production of mesitylene
IPC: C07C1/207
Filed: 1958-12-01
Abstract: Mesitylene is formed by the condensation of acetone in the vapour phase at 200-500 DEG C. in the presence of a catalyst containing tantalum or a compound thereof.  Pressures of 0,05 to 200 atmospheres can be used with contact times of 1-20 seconds. The catalyst may be supported on silica, alumina, silica-alumina, kieselguhr, pumice or carbon and may contain 0,05-5% of tantalum or its pentoxide or a salt thereof and may also contain p  known catalysts for the conversion, e.g. iron, cobalt, nickel or tungsten.ALSO:A catalyst used in the conversion of acetone to mesitylene comprises 0.05-5% of tantalum or an oxide or salt thereof supported on silica, alumina, silica-alumina, kieselguhr, pumice or carbon.  It may also contain known catalysts for the conversion such as iron, cobalt, nickel or tungsten.  The catalyst is preferably activated by heating in air to 150-600 DEG C. for 1-10 hours before use.
Patent GB-1476607-A (GB)
Title: Thiono-di-thiolphosphoric-phosphonic-acid esters and ester- amides and their use as insecticides and acaricides
IPC: A01P7/02
Filed: 1975-09-23
Abstract: 1476607 Organophosphorusisoureas BAYER AG 23 Sept 1975 [24 Sept 1974] 38956/75 Headings C2P and C2C  The invention comprises compounds of formula  (wherein R is C 1-6  alkyl, phenyl or mono- or poly-halophenyl; R<SP>1</SP> is phenyl, C 1-4  alkyl, C 1-4  alkoxy, C 1-6  alkylthio or C 1-6  alkylamino; R<SP>11</SP> is C 1-6  alkyl; and X is O or S); and their preparation by reacting (RO)(R<SP>1</SP>)P(X)(SM) with Hal-CH 2 CONHC(:NH)(OR<SP>11</SP>) where M is H or one equivalent of an alkali metal, alkaline earth metal or ammonium and Hal is halogen, optionally in the presence of an acid-binding agent. Starting materials of formula (wherein R<SP>111</SP> is Me, Et or iso-Pr) are prepared by reacting ClCH 2 COCl with HCl.NH 2 C(:NH)- (OR<SP>111</SP>). Insecticidal and acaricidal compositions comprise a compound I and a carrier.
Patent GB-1284950-A (GB)
Title: Method of securing closure to container and package produced by such method
IPC: B65D41/04
Filed: 1970-08-13
Abstract: 1284950 Container closure ALUMINUM CO OF AMERICA 13 Aug 1970 [29 Aug 1969] 39086/70 Heading B8T A metal closure 18 has a compressible insert 26, such that the closure can be loosely fitted over a container rim 16 and when radial pressure is applied to the closure, the insert 26 engages with projections 12 on the rim to retain closure, which is then rotatably removable. The pressure applying means may be a die 30, which may be provided with ridges 38, 39 to produce knurling on the closure member. The flow of the insert 26 around the projections on the rim, which may be screw threads, could be enhanced by using heat. The metal of the closure may be aluminium.
Patent GB-874396-A (GB)
Title: Improvements in or relating to process for the manufacture of cyclopentanophenanthrene derivatives
IPC: C07J75/00
Filed: 1957-12-16
Abstract: 2a -methyl - dihydrotestosterone, 17 - esters thereof and 2a -methyl-17a -lower alkyl-dihydrotestosterones in which the alkyl group contains at most six carbon atoms, are prepared by hydrogenating the corresponding 2-hydroxymethylene or 2-acyloxymethylene derivtives in the presence of a hydrogenation catalyst, e.g. platinum oxide or palladium.  The 2-hydroxymethylene compounds are obtained by reacting the 2-unsubstituted dihydrotestosterone with ethyl formate and sodium hydride, followed by acid treatment, and if desired the hydroxy group (together with the 17b -hydroxyl if a secondary alcoholic group) may be acylated prior to hydrogenation.  Specified acyl groups are those derived from hydrocarbon carboxylic acids of from 2 to 12 carbon atoms, especially the acetyl, propionyl and benzoyl groups.  In examples:-(1) dihydrotestosterone in benzene is stirred with ethyl formate and sodium hydride under nitrogen, the resulting sodium salt acidified with HCl and the 2-hydroxymethylene dihydrotesterone produced hydrogenated in methanol over palladium-charcoal, treated with aqueous KOH, acidified and 2a -methyl dihydrotesterone isolated by solvent extraction and purified by chromatography on alumina; (2) as above, effecting the hydrogenation in acetic acid; (3) the intermediate 2-hydroxymethylene compound is acetylated prior to hydrogenation; (4) and (5), 17a -methyl- and 17a -ethyl dihydrotestosterone similarly yield 2a ,17a -dimethyl and 2a -methyl-17-ethyl-dihydrotestosterone respectively; (6) 2-hydroxymethylene-dihydrotestosterone is acylated with propionic anhydridepyridine and hydrogenated to the propionate of 2a -methyl-dihydrotestosterone.  Specifications 853,291 and 854,407 are referred to.
Patent GB-844974-A (GB)
Title: Improvements relating to hoses
IPC: B29C48/151
Filed: 1957-12-17
Abstract: 844,974. Making flexible tubes. HOOVER Ltd. Dec. 17, 1957 [Dec. 21, 1956 (2)] No. 39221/57. Class 87(2). [Also in Group XXVIII] A flexible and extensible hose is made by passing a steel coil 20 the turns of which are slightly apart through an extruding head 35 in which a thin elastomeric tube 21 made e.g. of polyvinyl chloride is extruded over the coil. The coil passes freely through and is centred by a guide 50 to an extrusion orifice 51 having a lateral opening 52 in its wall which receives a strip electrical conductor 59 from a spool 65. The strip is fed through the orifice 51 whilst hot synthetic plastic material is also fed about the turns of the coil so that on emergence a tube of material is formed enveloping conductor and coil. A fan maintains a suction in the head 35 so that the extruded tube necks down against the coil 20 so that the wall of the tube is drawn inwards together with the conductor between the turns of the coil. The complete hose then passes through rollers (not shown), which freely allow the coil to longitudinally contract and form deep corrugations in the tube, which sets to this form. Specification 784,060, 800,371 and 816,160 are referred to.
Patent GB-833111-A (GB)
Title: Device for heating wire electrically
IPC: H05B3/00
Filed: 1957-12-17
Abstract: 833,111. Heating wire electrically. WALCO ELECTRIC CO. Dec. 17, 1957 [July 5, 1957], No. 39227/57. Class 39(3) A preheater for heating a wire 10 being fed into an extruding die 12 comprises a rectangular housing 14 containing a variable output auto-transformer 19 connected to a transformer 24 which supplies current, via brushes in holders 28, to connect collector wheels 27 mounted on spaced aligned rotatable shafts which extend outside the upper front face of the housing 14 to support a pair of grooved wheels 15 and 16. The wire 10 passes through a guide ring 33, over the wheel 15, down to and around a lower idler wheel 17, up to and over the wheel 16, through a further guide ring 33 and on to the die 12. The wheels 15 and 16 are mounted on a cross plate 26 held by bolts 31 which extend through spaced vertical parallel slots 29 in the side walls of the housing 14 so that the vertical position of the wheels may be adjusted. The wheels 15, 16 and 17 are independently insulated from each other and from the housing 14. By the adjustment of the autotransformer 19, effected by a control wheel 22, a high amperage current at a low voltage, e.g. up to 15V, can be passed through that portion of the wire 10 between the wheels 15 and 16 to heat it prior to passing through the die 12. Fans 35 and fins 34 help to dissipate heat from the apparatus.
Patent GB-1178348-A (GB)
Title: Negative Feedback Circuit Employing Combination Amplifier and Lead-Lag Compensation Network.
IPC: G05D7/06
Filed: 1968-08-16
Abstract: 1,178,348. Electric control systems; antihunting arrangements. GENERAL SIGNAL CORP. Aug.16, 1968 [Sept.6, 1967], No.39329/68. Heading G1N. In a negative feedback electrical control circuit, a combined amplification and lead-lag compensation device 15 comprises resistances 23, 25 shunted by capacitors 24, 26 and connected as shown to the negative input of an operational amplifier 18 operating in the saturated mode. Resistance 25 may comprise two resistors 25a, 25b, Fig.2, the capacitors being connected as shown. Resistor 25 may be connected to the output of the amplifier 18 through an adjustable voltage divider (27, Fig.3 not shown).
Patent GB-345941-A (GB)
Title: Improvements in metal cutting machines
IPC: B23K35/02
Filed: 1929-12-24
Abstract: 345,941. Band-saw machines. STENNING, G. A. and STENNING, A., 61, Morris Road, Southampton. Dec. 24, 1929, No. 39428. [Class 145 (ii).] In cutting out metal jigs &c. or cutting plates, girders &c. an electric are is formed between a metal band or strip caused to move in a direction parallel to its length and the work. The strip may be a band saw B driven by a pulley D and guided by an idle wheel P. The work-table T and pulley D are insulated from the frame of the machine and are provided with contacts C, E respectively for the supply of electric current. Alternatively a brush contact may engage the pulley D or the saw B. The pulley P may also be insulated from the machine frame.