baber/WOPTO huggingface dataset:
Patent GB-1316687-A (GB)
Title: Method for the production of pipes
IPC: B21C37/15
Filed: 1971-11-26
Abstract: 1316687 Heat pipes; stamping EUROPEAN ATOMIC ENERGY COMMUNITY 26 Nov 1971 [1 Dec 1970] 54958/71 Headings B3A and B3Q [Also in Division F2] A method for producing lined pipes comprises inserting a metal mesh 2, pre-curved in a U- shape, into a pipe 1 having a longitudinal slit with edges 3, 4 protruding from the slit, inserting an expandable tube (5), Fig. 2 (not shown), inside the mesh and substantially coaxial with the pipe, applying internal pressure to the tube to cause radial expansion thereof to thrust the mesh against the internal surface of the pipe, and then closing and welding the slit. A sheet of material is placed in a milling machine in order to cut capillaries in a longitudinal direction of the sheet, followed by cleaning, pickling and vacuum annealing. The sheet is then curved using an hydraulic press to form an almost cylindrical pipe 1. Metal mesh is cut to size and inserted into the pipe and the assembly is vacuum annealed. The tube (5), which is of plastics material and provided with end caps (6), (7) and connection (8) to an oil pressure generator (not shown), is inserted into the pipe assembly. A pressure of between 10 and 50 atmospheres is applied, metal core (9) maintaining the longitudinal dimension of the expanable tube. The pipe assembly is then placed in a die (10), (11), Fig. 3 (not shown), to compress the pipe and close the longitudinal slit. The projecting edges 3, 4 are then cut off and the mesh edges are welded together with the pipe along the slit. The lined pipe is then vacuum annealed and straightened in a swaging machine. The contact points between the mesh and pipe may be welded together using chemical vapour deposition techniques. A duct may be inserted into the pipe wall and welded together with the mesh edges into the longitudinal slit, rendering the lined pipe for use as a heat pipe with an arterial duct for heat transfer from a heat sink to a heat source.
Patent GB-1236280-A (GB)
Title: Improvements in rotary mowing machines
IPC: A01D34/66
Filed: 1968-11-21
Abstract: 1,236,280. Mowing machines. KUHN FRERES & CIE. 21 Nov., 1968 [22 Dec., 1967], No. 55245/68. Heading A1F. A rotary mowing machine comprises cutter element carrying discs rotating on a main bar, means for straightening the cutter elements which have become bent, and the cutter element attachment means comprising a collar and washer assembly 10 secured to the disc 4, e.g. by welding, a bolt 9 non-rotatably passing through the assembly 10 and locating the cutter element 8 between the bolt head 14 and the washer of the assembly 10 when a self-locking nut 16 is screwed on to the bolt, the bolt being protected by the assembly 10 and the elements 8 being swingable backwardly on meeting an obstruction during mowing. A cylindrical bolt-portion 15 abuting against a shoulder 12 of the assembly 10 prevents jamming of the cutting element 8 between the bolt head 14 and the washer 10 and thus permits swinging of the element 8. Stops may be provided on a reinforcing rib to limit the swing of the elements 8 on either side. If an element 8 fails to swing back and thus bends downwardly on meeting an obstruction, it is straightened by an inclined wear-out plate 24 (Fig. 5, not shown) arranged below the plane of rotation of the elements 8. In a second embodiment there are no stops and the regions of the cutter passage areas is not ribbed providing free circular movement for the blades.
Patent GB-1454108-A (GB)
Title: Apparatus and method for arc welding workpieces with a rotating arc
IPC: B23K9/08
Filed: 1973-11-30
Abstract: 1454108 Welding by fusion KONINKLIJKE MAATSCHAPPIJ "DE SCHELDE" BV 30 Nov 1973 [1 Dec 1972] 55632/73 Heading B3R [Also in Divisions H3-H5] An apparatus for producing an annular weld comprises an electrode 7 (e.g. copper or tungsten) Figs. 2 and 3 having an edge that in use extends parallel to the resin to be welded, means to generate an arc-driving magnetic field in the gap between electrode edge and seam (e.g. split electrode 7, Figs. 2 and 3, or split nozzle members 6, 9, Fig. 2, nozzle member 6, Fig. 3, or a separate coil or permanent magnets), a nozzle having an annular slot 13 to restrict the cross-section of the arc situated in use between electrode 7 and workpiece, and means for supplying gas (e.g. argon or helium) under pressure to the nozzle slot, in use producing a travelling arc plasma between electrode and seam. Fig. 2 (and Fig. 1, not shown) show a device for butt welding two pipes 4, 4 in which the nozzle (comprising two members 6, 9) and electrode 7 are mounted in a plastics housing 5 made in two parts, hinged together 10 to facilitate mounting around the pipes. The electrode is mounted in a stainless steel current supplying ring 8. The electrode or one or both nozzle members 6, 9 in parallel may be a one turn magnetic field generating coil. The abutting faces of the ring adjacent the hinge 10 is then insulated. Clamp 12 alone or with braided wire ensures a good electrical contact at the opposite side of the device. Gas and current are supplied through pipes 2. Fig. 3 in a device for welding a pipe 4 to a hole in a plate 15. The nozzle defining members are 6 and a thickened portion 9 on a dowel 17 centering by enlargement 18 the apparatus in the work. The upper part of dowel 17 is bored to supply the plasma forming gas to nozzle space 22. Space 20 is supplied with cooling water via conduit 19. Electrode holder 8 is mounted between plastics sleeves 23, 24. (For Figures see next page.)
Patent GB-1247919-A (GB)
Title: Improvements in or relating to fire extinguishing compositions
Inventor: WILKINSON DAVID ARTHUR
IPC: A62D1/00
Filed: 1968-11-26
Abstract: 1,247,919. Halogenated fire extinguishants. NU-SWIFT INTERNATIONAL Ltd. 29 Dec., 1969 [26 Nov., 1968], No. 56031/68. Heading A5A. [Also in Division C4]  Fire-extinguishing compositions comprise bromotrifluoromethane mixed with chlorobromomethane, dibromodifluoromethane or dibromotetrafluoroethane and stored in the presence of a pressurising agent. The latter may be N 2 , CO 2  or a chlorofluoroalkane. CBrF 3  is a gas and CH 2 BrCl, CBr 2 F 2  and C 2 Br 2 F 4  liquids at 15‹C and atmospheric pressure.
Patent GB-1329597-A (GB)
Title: Ceramic foam process and product thereof
IPC: C04B38/06
Filed: 1970-11-26
Abstract: 1329597 Foamed ceramic article DOW CHEMICAL CO 26 Nov 1970 [26 Nov 1969] 56251/70 Heading B5A A coherent foamed ceramic article is produced by introducing a pelleted clay composition to a dropping zone in which the pellets are heated to above their initial melting temperature and expanded during free fall, and the partially melted and expanded pellets are collected and agglomerated in a heated collecting zone and further heated to complete expansion before cooling to ambient temperature. The product is preferably then annealed. Heating may be effected in a reducing atmosphere. The product may be cut or machined into articles of the desired shape or size for structural or insulating purposes. It may be reinforced with rods or various surface coatings may be applied, e.g. for decoration.
Patent GB-1279087-A (GB)
Title: Coated fabrics
Inventor: SCHOFIELD NEIL
IPC: A41D27/06
Filed: 1968-11-27
Abstract: 1279087 Interlining BONDINA Ltd 11 Nov 1969 [27 Nov 1968] 56297/68 Heading B2E An interlining is made by printing on to a fabric in a pattern an aqueous solution of a thickener in which is emulsified another liquid, scattering thermoplastic particles on to the fabric, removing particles which do not adhere, and fusing the remainder. The particulate material may be applied in a fluidised bed. The printing pattern may be a series of dots, and the fabric may be non-woven. The thickener may be a cellulose ether, carboxymethyl cellulose or ammonium polymethacrylate. The other liquid may be a plasticiser for the thermoplastic particles, and the composition may also include solid plasticisers or solid thickeners, e.g. talc, silica. Polyamide may be used so that thermosplastic material, in which case the particles can include a melting-point depressant, e.g. urea, thiourea, dicyandiamide, and the composition can include solid and liquid sulphonamide plasticisers.
Patent GB-1106450-A (GB)
Title: A voltage controlled oscillator
IPC: H03B5/12
Filed: 1966-12-19
Abstract: 1,106,450. Frequency modulation. JUNKERS FLUGZEUGUND MOTORENWERKE A.G. 19 Dec., 1966 [22 Dec., 1965], No. 56698/66. Heading H3R. A voltage controlled oscillator comprising a tuned circuit including an inductance L and a pair of capacitance diodes D1, D2 connected by a resistance R1 to a control voltage U st , is characterized by the provision of a feedback path including further capacitance diodes connected to the same control voltage. In Fig. 1 the feedback path comprises two pairs of capacitance diodes D3-D6, and the resistances R1-R5 are chosen so that the phase shift in the feedback path is correct at any frequency to which the circuit is tuned. A capacitance diode D7 assists starting in the lower frequency range. In a modified circuit, Fig. 2 (not shown), the diodes D5 and D6 are omitted, a diode D8 is connected in parallel with D7, and the junction of the fixed capacitor C with D4 is connected to earth through a further pair of capacitance diodes (D9 and D10).
Patent GB-1424846-A (GB)
Title: Solid state electronic timepiece
IPC: G04G5/00
Filed: 1973-12-07
Abstract: 1424846 Electronic timepieces- SUWA SEIKOSHA KK 7 Dec 1973 [25 Dec 1972] 56798/73 Heading G3T  An electronic timepiece with a liquid crystal digital display 12 has a light source 15 for illumination of the time display upon closure of switches 16, 17 when it is desired to consult the time. With switch 16 open, a switching circuit 14 enables the time indication to be corrected upon closure of any one or more of switches 17, 18, 19 which causes a respective time correcting signal to be applied to a timing circuit 11. The time cannot therefore be corrected when the light source 15 is energized and vice versa. The liquid crystal display may be of the reflecting type or the permeation type. The power source 13 may be a battery.
Patent GB-1168879-A (GB)
Title: Method and apparatus for Testing the Pressure Tightness of Containers
IPC: G01M3/24
Filed: 1967-12-15
Abstract: 1,168,879. Testing fluid tightness. IDEX CORP. Dec.15, 1967 [Dec. 16, 1966], No.57201/67. Heading G1S. Apparatus for testing articles T for leaks comprises a chamber 12 having an opening 14 in which the test article T is clamped by a sealing head 22. The article T is then exposed to pressurized air on one side from a passage 20, a layer of moisture drops having been deposited on the other side by a fog nozzle 24. A microphone 26 is provided to pick-up vibrations caused by passage of the pressurized air through a leak in article T. In the case of a leak, a switch is actuated which, on removal of the sealing head 22 causes pressurized air to pass through passage 41, thus removing the article T. A series of articles may be tested on a rotatable turret.
Patent GB-1441927-A (GB)
Title: Illuminating a subject for filming
IPC: G03B15/03
Filed: 1972-12-14
Abstract: 1441927 Illuminating subjects for filming POST OFFICE 12 March 1974 [14 Dec 1972] 57640/72 Heading G2X [Also in Division H4] A subject 2 is illuminated by a source 4 with light pulsed at a frequency of at least 70 Hz so that the illumination appears to the human eye to be continuous, and the reflected light passes through a gate 8 to a T.V. or cine camera 7; the gate being operated at a frequency related to the pulsing frequency so that the camera records during the pulses. The average light intensity is thus comparatively low and discomfort of the subject 2 is thereby reduced. As shown, gate 8 comprises an image intensifier, camera 7 is a T.V. camera fibre optically coupled thereto, and a synchronizing circuit 6 modulates image intensifier 8 and pulses light source 4 via circuits 9 and 5. Preferably the frequency is related to that of a camera scanning circuit 10 to avoid bands appearing on the screen. A source 3 provides steady illumination. In alternatives, the gate 8 is a mechanical shutter, a Kerr cell shutter or a liquid crystal shutter used with or without an image intensifier. The source 4 may be a pulsed Xenon tube or a continuous source having a Kerr cell shutter.
Patent GB-1420968-A (GB)
Title: Method for oxidising carbonaceous fuel
IPC: F23C6/04
Filed: 1972-12-15
Abstract: 1420968 Treating exhaust gases ENGELHARD MINERALS & CHEMICALS CORP 15 Dec 1972 [17 Dec 1971] 58201/72 Heading B1W [Also in Divisions F1 and F4] A method of oxidising a carbonaceous fuel which when burned with a stoichiometric amount of air has an adiabatic flame temperature of at least 3300‹F, comprises partially combusting the fuel with air in a thermal combustion zone, cooling the products, and then effecting further adiabatic oxidation of at least 10% of the fuel supplied to the thermal combustion zone by contacting the cooled products with an oxidation catalyst at a temperature of between 1500 and 3000‹F. In one arrangement a compressor 12 delivers part of its air output through line 28 and valve 30 to a combustion chamber 16 where between 35% and 75% of the hydrocarbon fuel supplied through line 18 is burnt. The products are cooled in zone 40 by a further portion of the air output of compressor 12 supplied through line 38 and enter chamber 42 where the fuel is further oxidised adiabatically in contact with catalyst 46. Additional fuel may be added between chambers 16, 42. The purified products expand through turbine 14 driving compressor 12 and providing useful power. An additional combustion chamber may be disposed between catalyst chamber 42 and turbine 14. In a modification (Fig. 2 not shown) catalyst chamber 42 is provided between turbine 14 and a downstream separate power turbine (56) and thus acts as an interstage reheater. Oxidation of the gases leaving the catalyst chamber may continue during expansion through the turbine. The fuels and catalysts are specified and are generally as described in Specification 1395422. In further modifications the quenching of the partially combusted fuel may be effected by indirect heat exchange, or by direct heat exchange by contact with a ceramic heat rink or the catalyst in the oxidation zone. The gases leaving the catalyst chamber may be used as the heat source for a water-tube boiler, rather than driving a turbine.
Patent GB-1331177-A (GB)
Title: Freeze-drying tray
IPC: B65D25/02
Filed: 1971-12-16
Abstract: 1331177 Freeze-drying trays NESTLE SA 16 Dec 1971 [21 Jan 1971] 58440/71 Heading F4G A freeze-drying tray for frozen product comprises a rigid peripheral frame 1 supporting a perforated centre portion folded rectilinearly to form parallel troughs. The centre portion may comprise folded wire netting or perforated metal (not shown), or a number of elements 4 welded together, or interengaged and pinched together as shown. The frame 1 comprises crosspieces 12 to support and space the elements 4, and ends 14 and inturned flanges 15 to retain the elements 4. Alternatively, the elements 4 may be removable.
Patent GB-1324269-A (GB)
Title: Ethylenically unsaturated organo-solicon compounds
IPC: C07F7/18
Filed: 1970-12-11
Abstract: 1324269 Lubricants BADISCHE ANILIN- & SODA-FABRIK AG 11 Dec 1970 [13 Dec 1969] 58878/70 Heading C5F [Also in Division C3] A lubricating or fuel oil contains as an additive a polymer based on a vinyl substituted silane monomer of the formula wherein R<SP>1</SP> denotes hydrogen or methyl, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> independently represent C 1 _ 4  alkyl or phenyl, X denotes -CH 2 -O-, or R<SP>5</SP> denotes hydrogen, methyl, chloromethyl or phenyl, Y denotes C 2 _ 10  alkylene, Z denotes C 1 _ 3  alkylene and m is zero or an integer of from 1 to 30 inclusive.
Patent GB-1219560-A (GB)
Title: Improvement in and relating to ionisation manometer tubes
IPC: H01J41/04
Filed: 1969-12-03
Abstract: 1,219,560. Ionization manometers. BALZERS PATENT- und BETEILIGUNGS A.G. 3 Dec., 1969 [24 Dec., 1968], No. 58931/69. Heading H1D. A system supporting a coated incandescent cathode 1 of an ionization manometer tube is constructed as an operative unit capable of being exchangeably inserted into terminal bushings 12, 13 of the tube. The ends of the filament 1 are welded to arms 4 and 5 carried by rods 6 and 7 which can be pushed into and clamped in bushings 12 and 13 carried by the base 10 of the tube which also carries an ion collector electrode 2 composed of four rods. The rods 6 and 7 are either secured to or detachably held in a base-plate 8 designed as the lid of a container 14 for storing a cathode system. An electron accelerating electrode 3 is fixed to a further rod 9 to form part of the cathode unit, the rod 9 being pushed into a further terminal bushing 11.
Patent GB-1360478-A (GB)
Title: Priming device for pumps
IPC: F04D9/02
Filed: 1971-12-20
Abstract: 1360478 Priming centrifugal pumps WILKINSON RUBBER LINATEX Ltd 11 Dec 1972 [20 Dec 1971] 59062/71 Heading F1C A priming device for connection between a pump 7 and a liquid reservoir situated at a lower level than the pump comprises a chamber 2 having an inlet 3 including a non-return valve 5 for connection to the reservoir through a conduit 4 and an outlet 6 for connection to the pump, a non-return air bleed 12 and a liquidlevel responsive control means for cyclically activating and halting the pump so that the liquid level within the chamber falls and rises towards a lower level B and an upper level A respectively to draw air from the conduit into the chamber and then expel air through the air bleed until the liquid enters the chamber from the reservoir. The levels A and B are sensed by respective electrodes 19 and 16 which are connected to a control circuit 23 which switches off the driving motor 8 when the pump has reduced the level to B. Static pressure in the pump then causes the liquid to re-fill the chamber 2, thereby displacing air from the chamber through the non- return bleed valve 12. When the level has thus risen to A, the driving motor 8 is switched on again and continues running until the liquid level has fallen to B again. The cycle of operations continues until liquid enters the chamber 2 from the conduit 4, whereafter the pump runs continuously.
Patent GB-1380936-A (GB)
Title: Fermentative preparation of l-arginine
IPC: C12P13/10
Filed: 1971-12-21
Abstract: 1380936 L-Arginine by fermentation TANABE SEIYAKU CO Ltd 21 Dec 1971 [25 Dec 1970] 59274/71 Heading C2C L-Arginine is produced by cultivating an arginine hydroxamate-resistant mutant of Bacillus subtilis in a nutrient medium under aerobic conditions, and recovering the L- arginine from the fermentation broth. Preferably the fermentation is carried out in the presence of 1-5% (wt./vol.) of L- or DL- glutamic acid. In an example the L-arginine is isolated as its hydrochloride.
Patent GB-1352860-A (GB)
Title: Process for racemizing alpha-amino-epsilon-caprolactam and the  hydrolysis thereof to l-lysine
IPC: C07D223/12
Filed: 1971-12-22
Abstract: 1352860 Racemization of α-amino-#-caprolaciam and its hydrolysis to L-lysine TORAY INDUSTRIES Inc 22 Dec 1971 [23 Dec 1970 26 Dec 1970 (2)] 59842/71 Heading C2C α-Amino-#-caprolactam is racemized by treatment with an Achromobacter, Flavobacterium or Alcaligenes micro-organism or with a racemizing agent derived from any of these microorganisms. The amino-lactam may be treated with a growing culture, a culture broth, living cells, treated cells or a cell extract of any of the micro-organisms. Species of micro-organisms specified are Achromobacter cycloclastes, Achromobacter obae, Flavobacterium arborescens, and Alcaligenes faecalis. The aminolactam may be subjected to a selective hydrolysis treatment so as to obtain L-lysine either simultaneously with or subsequent to the racemization treatment. The selective hydrolysis treatment may be effected by a Cryptococcus, Candida or Trichosporon micro-organism or a hydrolysing agent derived therefrom, and the hydrolysing agent may be applied in the form of growing cells, a culture broth, an intact cell suspension, treated cells such as lyophilized cells and acetone-dried cells, a cell extract or an enzyme "L-aminolactam amido hydrolase"; species of hydrolysing micro-organisms specified are Cryptococcus laurentii, Candida humicola, and Trichosporon cutaneum.  Reference has been directed by the Comptroller to Specification 1,334,970.
Patent GB-1255184-A (GB)
Title: Graft copolymerization of cellulosic and amylaceous materials with ethylenically unsaturated compounds
IPC: C08B31/00
Filed: 1968-12-17
Abstract: 1,255,184. Grafted cellulosic and amylaceous materials. SCOTT PAPER CO. 17 Dec., 1968 [18 Dec., 1967], No. 60023/68. Heading C3G. A graft polymer is prepared by (a) forming an S-ester of a water-insoluble o-thiocarbonate derivative of a cellulosic or amylaceous material by reacting said o-thiocarbonate derivative with an aldehyde or dialdehyde in an acid medium; and (b) reacting said S-ester, in an acid medium and in the presence of an aldehyde or dialdehyde, with at least one ethylenically unsaturated compound using a peroxidic free-radical initiator. Examples are given in which (i) the sodium salt of a cellulose-O-dithiocarbonate derivative of rayon (in knitted sock form) is treated with an aqueous formaldehyde-sulphuric acid solution prior to being grafted in an aqueous emulsion containing M 2 O 2  with methyl methacrylate, ethyl acrylate, a mixture of methyl methacrylate and styrene or acrylonitrile, a mixture of styrene and acrylonitrile or ethyl acrylate, n-butyl acrylate, #-hydroxyethyl methacrylate or acrylate, acrylonitrile, methacrylonitrile, acrylamide, acrylic acid, styrene, pvinyl styrene, p - (t - butyl) - styrene, pchlorostyrene, # - trifluoro - # - fluoro propyl acrylate, or a mixture of ethyl acrylate with styrene, p - vinyl toluene, p - (t - butyl) - styrene, γ - trifluoro - # - fluoro propyl acrylate, or N,N<SP>1</SP>-dimethyl-#-aminoethyl methacrylate ; (ii) the methylol ester of a cellulose-O-dithio - carbonate derivative in the form of knitted cotton sock was prepared as in (i) and similarly grafted with ethyl acrylate, n-butyl acrylate, acrylonitrile, methacrylonitrile, acrylamide, acrylic acid, methyl methacrylate, #-hydroxyethyl methaerylate, a mixture of styrene with methyl methacrylate, ethyl acrylate or acrylonitrile, or a mixture of methyl methacrylate and acrylonitrile; (iii) dithiocarbonated bleached kraft southern pine wood pulp is similarly esterified with formaldehyde and grafted with ethyl acrylate, n-butyl acrylate, methyl methacrylate, # - hydroxyethyl methacrylate, acrylonitrile, methacrylonitrile, styrene, a mixture of styrene and ethyl acrylate or methyl methacrylate, or a mixture of acrylonitrile and methyl methacrylate; (iv) dithiocarbonated cellulose in the form of knitted rayon sock is esterified with acetaldehyde prior to being grafted with a mixture of styrene and acrylonitrile, methyl methacrylate or ethyl acrylate, or is esterified with glyoxal prior to being grafted with one of the said three mixtures or methyl methacrylate; (v) monothiocarbonated cellulose in the form of knitted rayon or cotton sock is esterified with formaldehyde and grafted with ethyl acrylate, methyl methacrylate or styrene; and (vi) the sodium salt of dithiocarbonated unpasted, powdered potato starch is esterified with formaldehyde and grafted with ethyl acrylate, methyl methacrylate or a mixture of styrene and acrylonitrile or methyl methacrylate.
Patent GB-1293340-A (GB)
Title: Articulated vehicle frame
Inventor: HARTELIUS NILS MAGNUS
IPC: B62D53/02
Filed: 1970-12-21
Abstract: 1293340 Articulated vehicles VOLVO AB 21 Dec 1970 [22 Dec 1969] 60596/70 Heading B7H An articulated vehicle comprises front and rear frame sections 2, 7 which are relatively pivotable about the longitudinal axis, the frame sections being interconnected by a universal joint 11 and links 12 mounted on balls 13 and 14 respectively formed on each of the frame sections at either side of the ball joint. The maximum angle of twist is limited by a cable 5 of adjustable length which is passed through tubes 17 and sleeves 18 mounted at each side of the frames 2 and 7; abutment members 19 formed at each end of cable 15 prevent further twist when they abut sleeves 18.