baber/WOPTO huggingface dataset:
Patent GB-1513558-A (GB)
Title: Tracking system
IPC: G05D3/14
Filed: 1975-09-30
Abstract: 1513558 Automatic control of position USS ENGS & CONSULTANTS Inc 30 Sept 1975 [30 Sept 1974] 40003/75 Heading G3R [Also in Division G 1] The lateral position of a moving object, e.g. a welding bead in inspection apparatus, is rectroactively controlled according to the actual position as detected using a pair of tapered rollers in contact with, and perpendicular to the longitudinal movement of, the object. Electrical signals indicative of rotation of each roller are used to control the lateral position and maintain it at the desired value. As shown, tachometers 14, 24 respectively associated with tapered rollers 8, 18 produce pulses at a frequency proportional to roller speed. These pulses are converted to voltages and differenced at 36 to provide a control signal for PI controller 40. Motor 48, driving support rolls 50, is thus energized according to the difference in speeds of rollers 8, 18 i.e. to the position error of the weld bead 4 from a desired value (when the tachometer outputs are equal), so as to correct the error. In an alternative Fig. 2 (not shown) the ratio between the tachometer outputs is formed, compared with unity and any difference used as a position correction signal. The rollers may be frusto-conical, or have a curved surface as generated by a curve substantially the same as the curvature of the welded pipe 2. In the later case the system is said to be more sensitive and independent of the linear speed of the pipe.
Patent GB-1326668-A (GB)
Title: Method of forming plastics sandwich structures
IPC: B32B27/00
Filed: 1971-08-26
Abstract: 1326668 Coating with polyester resins LONZA Ltd 26 Aug 1971 [28 Aug 1970] 40020/71 Heading C3P A plastics sandwich structure is prepared by coating a foamed plastics core with a composition including unsaturated polyester resin, styrene, a hardener and an accelerator, the core being coated with or incorporating a second accelerator so as to promote rapid hardening of the coating in the vicinity of the core. The second accelerator, which is preferably the same as the first, may either be sprayed or painted on to the core or it may be incorporated into the core material during its manufacture. In the example a foamed polyvinyl chloride sheet was sprayed with a solution of cobalt naphthenate in acetone. This sheet was later coated with a composition containing unsaturated polyester resin, styrene, methyl ethyl ketone hydroperoxide and cobalt naphthenate reinforced with glass-silk mats.
Patent GB-1500010-A (GB)
Title: 3,7-disubstituted cephalosporins and their preparation
IPC: C07D501/36
Filed: 1975-10-01
Abstract: 1500010 Cephalosporins PIERREL SpA 31 Aug 1976 [1 Oct 1975] 40063/75 Heading C2C Novel compound (I) (including salts thereof) are made by reacting compound (II) (a) when R 1  is 1-(1H-4-nitroimidazolyl)-CH 2 -CO and R 2  is acetoxy, or a soluble salt thereof, with 1H-1- methyltetrazole-5-thiol or a metal salt thereof, (b) when R 1  is hydrogen and R 2  is the 5-(1H-1- methyltetrazolyl)thio group, with a reactive derivative of 1-(H-4-nitroimidazolyl) acetic acid, or (c) when R 1  is Hal-CH 2 -CO and R 2  is the 5 - (1H - 1 - methyltetrazolyl)thio group, with a metal salt of 4(5)-nitroimidazole. Pharmaceutical preparations having Grampositive and Gram-negative actions contain (I) as active ingredient.
Patent GB-894405-A (GB)
Title: Improvements in or relating to electric motors
Inventor: MARTIN RONALD GEORGE JOHN
IPC: H02K17/10
Filed: 1958-12-12
Abstract: 894,405. Induction motors; core constructions. PLESSEY CO. Ltd. Dec. 4, 1959 [Dec. 12, 1958], No. 40111/58. Class 35. The rotor 13 of a squirrel-cage induction motor comprises laminations composed of ferrous flakes or granules in an insulating binder. Copper bars 7 are carried in slots inclined at an angle to radii but parallel to the rotor axis. End rings 15 are formed from copper powder compressed and sintered in a reducing atmosphere. The stator comprises four skewed salient poles, two of which carry energizing windings while the other two may be integral with the frame. Where they are not integral they are secured by keys and non- ferrous wire or strips 12 (Fig. 2, not shown), in the gap between adjacent pole faces, or alternatively by screws or epoxy resin. Shading rings of copper sheet or wire are provided on each pole.
Patent GB-859293-A (GB)
Title: Lances for blowing solid material into a melt of metal
IPC: C21C5/46
Filed: 1958-12-17
Abstract: 859,293. Tuyeres; feeding granular materials. ARBED ACIERIES REUNIES DE BURBACH-EICH-DUDELANGE S.A. Dec. 17, 1958 [Jan. 13, 1958], No. 40670/58. Classes 51 (1) and 51 (2). In a lance for blowing powdered or granulated material into or on to molten metal, a tubular removable wear-resistant liner is separated from an outer tubular cooling jacket by a free space of annular cross-section. Coaxial tubes 1, 2, 3 of copper or steel form the cooling jacket, and a liner 8 of abrasion resistant rubber has an insert 9 which screws into a part 11. A lance head 13, with a Venturi nozzle part 16, screws on to the ends of the tubes 1 and 3. In the embodiment of Fig. 2, the liner tube 20 ends in a Venturi nozzle 21 which screws into a part 23 of the lance head. The Venturi nozzle part may be made removable and separate from the liner tube, and the nozzle may be spaced from the head of the lance so that the annular space between the liner and the cooling jacket forms a passage for the introduction of gas into the melt.
Patent GB-851652-A (GB)
Title: Electronic switching systems
IPC: H03K23/82
Filed: 1958-12-18
Abstract: 851,652. Electronic counting apparatus. GENERAL RADIO CO. Dec. 18, 1958 [March 10, 1958], No. 40946/58. Class 106 (1). A cascade binary counter adapted by provision of a feedback cucuit to count in a radix other than a power of two utilises a neon tube or other threshold-voltage bi-directional device in the feedback path. Fig. 1 shows a two stage hard-valve trigger counter adapted by the neon tube 2 to count in radix 3; the switching on of triode 1<SP>1</SP> of stage II (by a negative pulse due to switching on of triode 3 of stage I) fires neon tube 2 to transmit a negative pulse to the grid of triode 3 and switch back stage I to the state in which triode 3 is off, thus eliminating one of four possible stable states of the counter. Fig. 3 (not shown) illustrates a similar circuit using transistor triggers. A silicon carbide non-linear resistor or saturable inductor may replace the neon tube.
Patent GB-908235-A (GB)
Title: Positive cam needle motion for full-fashioned knitting machines
IPC: D04B11/00
Filed: 1958-12-19
Abstract: 908,235. Knitting-machines. SOC. BELGE D'OPTIQUE ET D'INSTRUMENTS DE PRECISION. Dec. 19, 1958 [Dec. 20, 1957], No. 40977/58. Class 74 (2). The rock-shaft 18 for imparting vertical movement to the needles of a straight bar machine is oscillated by two truck levers 24, 28 attached to the shaft 18, the trucks 25, 29 of which levers engage separate cams 20, 22 on the cam-shaft 10 of the machine at points on opposite sides of the cam-shaft so that the motion of the needles is positively controlled both upwardly and downwardly. The downward motion is controlled by lever 24 which is rigidly secured to the shaft 18 and the upward motion is controlled by lever 28 which is pivotally connected to a short arm 30 also rigidly secured to shaft 18. During normal knitting operations and fashioning, the cam-shaft being shogged to bring cams adjacent to cams 20 and 22 into effect during the latter operation, a link 34 pivotally and slidably connected by a pin 40 to the lever 28 is engaged with a pin 41 on the lever 24 so as to provide a substantially rigid connection between the two levers. A spring 36 on a shaft attached to link 34 and extending through pin 40 has a certain control to urge the levers 24, 28 slightly together and their trucks 25, 29 against their cams. A light spring 54 is also provided to urge the levers together and a spring 42 retains the link 34 in locked engagement with pin 41. For effecting an idling motion during which carriers may be brought into operation, for example, a solenoid 74 is energized during a draw operation whereupon a truck 62 is brought into engagement with a cam 64 with the effect that a pin 78 disengages link 34 from pin 41 on lever 24. Simultaneously a catch 80 is raised and, when the needles are subsequently lowered by cam 20, engages a pin 86 and retains the lever 24 in an inoperative position in which the needles are maintained lowered. This position is retained for one or more cycles of the machine during which the lever 28 pivoted about its pivot on arm 30 being constrained by spring 54 without affecting the needle motion. On completion of the idling motion the solenoid is released and the link 34 drops to re-engage the pin 41 when the lever 24 is released by the catch 80 and normal operations are resumed.
Patent GB-1488018-A (GB)
Title: Apparatus for sterilizing air respired by patients
IPC: A61L9/20
Filed: 1974-09-20
Abstract: 1488018 Sterilizing respired air by ultraviolet light ORIGINAL HANAU QUARZLAMPEN GmbH 20 Sept 1974 [22 Sept 1973] 41181/74 Heading A5R [Also in Division H5] Apparatus for sterilizing respired air by ultraviolet light comprises an ultraviolet light permeable tube 20, and a coiled low pressure mercury vapour lamp 22, providing ultraviolet light of a wavelength of 253.7 mm, housed in housing 18. This apparatus is included in a respirator comprising a Y-piece 10 leading to the patient and connected to a hose 12, with a non-return valve 16 for expired air and a hose 14 for inspired air, a pump to assist breathing, in the form of a flexible bag 34 in a reservoir 38, the pressure in which is varied rhythmically by a driven piston, there also being one-way valves 26, 30 to control the flow, with the sterilizing apparatus being disposed between the pump and the Y-piece 10 on the inspired side. A water trap may be provided adjacent tube 20, Fig. 2 (not shown) to collect any condensed moisture.
Patent GB-1086091-A (GB)
Title: A process for the production of urethane isocyanates
Inventor: LIEBSCH DIETRICH
IPC: C08G18/02
Filed: 1964-10-12
Abstract: Urethane isocyanates in admixture with trimerized monomeric diisocyanates are obtained by reacting one or more hydroxyl compounds which contain at least two hydroxyl groups capable of reacting with NCO groups, with one or more organic diisocyanates, in an excess of NCO groups over OH groups, and then trimerizing the remaining monomeric diisocyanate at a temperature below 150 DEG  C. by adding a catalyst capable of polymerizing isocyanate groups and ending the latter reaction by adding a blocking agent for isocyanate polymerization when trimerization is complete. In examples toluylene diisocyanate and hexamethylene-1,6-diisocyanate are reacted with 1,1,1-trimethylolpropane, butane-1,3-diol and polypropylene glycols, and the products containing free diisocyanates are trimerized by adding tri-n-butylphosphine, pentamethyldiethylene triamine, sodium acetate and the lead salt of 2-ethylhexanoic acid as catalysts; the trimerization reactions are terminated by adding benzoyl chloride, p-toluene sulphonic acid methyl ester, ethyl acetate saturated with hydrogen chloride, and sulphuric acid dimethyl ester.  Other starting materials, catalysts and blocking agents are mentioned.ALSO:Urethane isocyanates in admixture with trimerized monomeric diisocyanates are obtained by reacting one or more hydroxyl compounds which contain at least two hydroxyl groups capable of reacting with NCO groups, with one or more organic diisocyanates, in an excess of NCO groups over OH groups, and then trimerizing the remaining monomeric diisocyanate at a temperature below 150 DEG  C. by adding a catalyst capable of polymerizing isocyanate groups and ending the latter reaction by adding a blocking agent for isocyanate polymerization when trimerization is complete. In examples toluylene diisocyanate and hexamethylene - 1,6 - diisocyanate are reacted with 1,1,1 - trimethylolpropane, butane - 1,3 - diol and polypropylene glycols, and the products containing free diisocyanates are trimerized by adding tri-n-butylphosphine, pentamethyl di-ethylene triamine, sodium acetate and the lead salt of 2-ethylhexanoic acid as catalysts; the trimerization reactions are terminated by adding benzoyl chloride, p-toluene sulphonic acid methyl ester, ethyl acetate saturated with hydrogen chloride, and sulphuric acid dimethyl ester.  Other starting materials, catalysts and blocking agents are mentioned.
Patent GB-1406991-A (GB)
Title: Cylinder feed clamp
IPC: B65B25/18
Filed: 1971-09-07
Abstract: 1406991 Reciprocating conveyers HOPKIN MORGAN BAKERIES Ltd 7 Sept 1972 [7 Sept 1971] 41711/71 Heading B8A Sliced loaves of circular cross-section being transferred to a wrapping machine are prevented from rolling back down a reciprocating transfer plate 15 by three clamping plates (only one shown) which are pivotally supported on a bar 24 of a swing frame 11 but have their anticlockwise rotation limited by portions 26 engageable with the frame 11. The frame is suspended from members 13 of the wrapping machine frame 14 and is connected to the reciprocating plate 15 by a post 16 and a rod 17. When the plate 15 returns to the right, Figs. 1, 3, and a sliced loaf 29 is carried to the left by transfer arms (not shown) engaging the ends of the loaf, the loaf rides under portions 27, 28 of each clamping plate but is prevented from rolling back during the leftwards movement of the plate 15. The loaf is subsequently moved from the plate 15 by a flight of an endless conveyer.
Patent GB-1020827-A (GB)
Title: Improved organosiloxane encapsulating resins
IPC: C08L83/04
Filed: 1964-10-14
Abstract: A composition, for making a transparent encapsulating material, comprises (1) a siloxane of the formula <FORM:1020827/C3/1> in which R and R1 are selected from Me and Ph radicals, at least 80 mol. per cent of the R1 radicals being Me radicals, and n has a value such that the viscosity of (1) is from 500 to 500,000 cs. at 25 DEG  C., (2) from 2 to 50% by weight of (1) and (2) of a copolymer of SiO2, Me3SiO0.5 and Me2ViSiO0.5 units, in which there is from 1.5 to 3.5% by wt. of Vi radicals, and in which the ratio of total Me3SiO0.5 and Me2ViSiO0.5 to SiO2 units is from 0.6: 1 to 1: 1 (3) a compound compatible with (1) and (2) which is a siloxane containing from 0.1 to 1.7% by wt. of Si-bonded H atoms, the remaining valencies of the Si atoms being satisfied by Me and/or Ph radicals, there being at least 3 Si-bonded H atoms per molecule, and any hydrocarbon radicals attached to SiH silicon are all Me radicals, the amount of (3) being such that there is from 0.75 to 1.5 mols. of SiH per mol. of Vi radicals in (1) and (2), and (4) a Pt catalyst. The catalyst (4) may be metallic Pt dispersed on charcoal or other carrier, chloroplatinic acid or a platinic chloride-olefin complex. Fillers can be added when optical clarity is not desired. Liquid siloxanes may also be added as plasticizers. The compositions cure at room temperature or upon heating.  An example is given.  Uses: For electrical insulation, forming cast articles and for making light-pipes.
Patent GB-897275-A (GB)
Title: Production of acrylonitrile cyclic dimer
Filed: 1960-12-06
Abstract: Acrylonitrile cyclic dimers are prepared by heating acrylonitrile in the vapour phase at a pressure of at least 1000 p.s.i. out of contact with stainless steel, copper, or any other non-noble metal and/or in the presence of water at a pH of less than 8.  The process may be carried out in a platinum-, glass- or silver-lined pressure-resistant vessel, in the presence or absence of water at a pH of less than 8; or in any suitable vessel in the presence of water at a pH of less than 8.  The acidity may be provided by the presence of water-soluble amine acceptors, such as CO2, sulphuric, phosphoric and sulphurous acids, potassium hydrogen phosphates, oxalic, hydroxyacetic, trimethylacetic, propionic, butyric, succinic, acrylic and acetic acids, and water-soluble phenols.  The preferred quantity of water is 0.3%-10% based on the acrylonitrile charged.  Adiponitrile may be prepared by hydrogenation of acrylonitrile cyclic dimers at atmospheric pressure at 175 DEG C.-400 DEG C. in the presence of a reduced cobalt oxide catalyst.
Patent GB-922252-A (GB)
Title: Low foaming washing agents
IPC: C11D1/722
Filed: 1960-12-07
Abstract: Detergent compositions of low foaming power comprise (a) a foaming non-ionic surface active agent, and (b) a further different surface active compound in which a hydrophobic residue is linked to an ethylene oxide chain which in turn is linked to a propylene oxide chain or residue, the turbidity point of the composition being 5 DEG -50 DEG C.  The ratio by weight of (a) to (b) is generally 1:4 to 4:1 and preferably 1:0,3 to 1,5:1, while the turbidity point is usually 5 DEG -50 DEG C., preferably 35 DEG -45 DEG C.  The hydrophobic residue in (b) is suitably derived from fatty alcohols or acids or their partial ethers or esters with polyhydric alcohols, fatty amides or mercaptans, alkyl or alkylbenzene sulphonamides, alkylbenzene carboxylic acids and amides thereof, and alkyl-phenols and -thiophenols; in general such residues are condensed with 5-80, preferably 8-25 units of ethylene oxide and the product then further condensed with propylene oxide so that the molecular proportion of ethylene oxide units to propylene oxide units is 2,5:1 to 1:5 and preferably 2:1 to 1:2.  Agent (a) may be an ethylene oxide condensate of any of the above hydrophobic residues, and may also contain a propylene oxide chain provided that the ethylene and propylene oxides are randomly condensed or that the ethylene oxide chain forms the terminal block.  The compositions may also include soap, alkylbenzene sulphonate, and alkyl sulphate; alkali metal silicates, carbonates, bicarbonates, sulphates, bisulphates, phosphates, acid phosphates, and tripoly-, tetrapoly-, pyro-, and meta-phosphates; per compounds such as sodium perborate and stabilizers such as magnesium silicate; glue, gelatin, ether carboxylates and sulphonates of starch, or cellulose, e.g. carboxymethylcellulose, and sulphate esters of starch and cellulose; and optical brighteners, dyes and perfumes.  The compositions are so formulated that a 1% solution has a pH of at least 9, preferably 10-11, and may be produced as powders, pastes or solutions.ALSO:A non-ionic surface active agent of low foaming power consists of a hydrophobic residue which is linked to an ethylene oxide chain which, in turn, is linked to a propylene oxide chain or residue.  The hydrophobic residue is suitably derived from fatty alcohols or acids or their partial ethers or esters with polyhydric alcohols, fatty amides or mercaptans, alkyl or alkylbenzene sulphonamides, alkylbenzene carboxylic acids and amides thereof, and alkylphenols and -thiophenols; in general, such residues are condensed with 5-80, preferably 8-25 ethylene oxide units and the product then further condensed with propylene oxide so that the molecular proportion of ethylene oxide units to propylene oxide units is 2,5:1 to 1:5, and preferably 2:1 to 1:2.
Patent GB-938841-A (GB)
Title: Improvements in or relating to rotary number printing or like mechanism
IPC: B41K3/12
Filed: 1960-12-07
Abstract: 938,841. Rotary number-printing apparatus. G. SCHICKEDANZ. Dec. 7, 1960 [Dec. 24, 1959], No. 42159/60. Class 100 (2). In apparatus for printing changeable numbers and letters on separate sheets, an eccentrically mounted printing cylinder 7 is rotated by a pair of elliptical gear-wheels 4, 5 so that the peripheral speed of the cylinder will conform with the speed of feed of a sheet fed thereunder during printing. The gear 4 is secured to the shaft 6 of the cylinder, and the gear 5 is driven through a slip clutch 1 operable by a lever 2 controlled by a magnet 3. The cylinder 7, which is eccentrically mounted on the shaft 6, includes rings 8, 9 and 10 which carry type faces on their peripheries, each ring being capable of rotation relative to the cylinder and being locatable in the various positions by spring-loaded balls 11. For number printing, the units ring 8 is stepped by a gear and clutch assembly 12, 13 which is rotated either continuously or intermittently, and may be controlled from a photo-cell which scans the path of travel of the sheets to be printed. Rotary motion is imparted to a ratchet-wheel 16 from a pawl 15 which is moved by gears 25, 26, and returned to starting position by means 14. The ring 8 carries one tooth which can engage a gear 18 to drive the tens rings 9, and gears 19, 20 compensate the difference of angular movement imparted to the ring 9 by the ring 8. The gears 18, 19 are fixed on a common shaft. The hundreds ring 10 is driven by a gear 24 through compensating gears 23, 22, and a part 21 on the tens ring 9 which has only one tooth. By the use of an elliptical gear drive, the peripheral speed of the cylinder 7 is increased between each printing operation, and sheets of a length shorter than the circumferential length of the cylinder can be printed in view of the eccentric mounting of the cylinder
Patent GB-1286072-A (GB)
Title: Improvements in or relating to retreading pneumatic tyres or treading pneumatic tyres during manufacture
Inventor: WILLIS ALFRED JOHN
IPC: B29D30/54
Filed: 1968-09-05
Abstract: 1286072 Retreading tyres DUNLOP HOLDINGS Ltd 4 Sept 1969 [5 Sept 1968] 42262/68 Heading B7C A process for the manufacture or retreading of a pneumatic tyre comprises applying a sheet (3) of unvulcanized reinforced rubber to the circumference of a tyre casing (1), applying a strip (2) of unvulcanized rubber to each shoulder of the casing to abut the overlying edges respectively of the sheet, applying a plurality of unvulcanized flanged rubber lugs (4) of square, rectangular, or trapezoidal cross-section to the sheet at spaced apart intervals and vulcanizing the assembled parts together. The sheet is reinforced with randomly oriented discontinuous lengths of textile or metal fibres. If the casing comprises heat-shrinkable cords, e.g. nylon cords, these are pre-shrunk by heating prior to retreading.
Patent GB-1145863-A (GB)
Title: Improvements in escutcheon locks
IPC: E05B55/04
Filed: 1966-09-22
Abstract: 1,145,863. Locks. S. W. BEGTSSON. 22 Sept., 1966, No. 42345/66. Heading E2A. An escutcheon lock comprises a rotatable lock handle 2 which can be locked against rotation by a bolt 19 secured to a guide member 14 slidably mounted in a groove 8 in the escutcheon perpendicular to the axis of rotation of the handle, the guide member being provided with one or more resilient arms 16<SP>1</SP> which releasably engage in recesses 10<SP>1</SP>, 10<SP>3</SP> in the longitudinal side or sides of the groove and releasably hold the bolt in locking or unlocking position. The guide member 14 has a knob 14<SP>1</SP> extending through an opening in the escutcheon for manual operation. A cover plate 11 has a dished portion 22 preventing movement of the bolt in the direction of the axle 3. The escutcheon and guide member may be made from plastics and the bolt from metal. The end 19 of the bolt engages in one or other of recesses 20 in a plate 6 on the handle axle 3 to obtain the handle in locking or unlocking position. The bolt may be spring urged to locking position.