baber/WOPTO huggingface dataset:
Patent GB-965423-A (GB)
Title: Method of, and apparatus for, operating a heat exchanger
IPC: F22G5/00
Filed: 1960-11-11
Abstract: 965,423. Automatic control of heat-exchangers. SULZER FRERES S.A. Nov. 11, 1960 [Nov. 20, 1959], No. 38883/60. Heading G3R. A heat exchanger is controlled by determining the temperature difference between two points in the heat exchanger, extrapolating from this difference to determine the expected outlet temperature and influencing the outlet temperature in dependence on the difference between the expected temperature and a desired value therefor. As shown, a superheater 31 of a steam generator is connected to an inlet line 32 and feed water is injected through a valve 35 under the control of a quick-acting regulator comprising a detector 36 running temperature at a point 37, and a proportional-integral regulator 39 connected to a servomotor for the valve 35. The temperature at point 37 is compared with that at a point 44, sensed by a detector 45, in a comparator unit 42. The output of unit 42 is multiplied in a unit 47 with a signal from a comparator unit 58 and the multiplied output of the unit 47 is fed to a comparator unit 50 where the modified desired value for the temperature at the point 37 is formed by subtracting the output signal of unit 47 from the desired value from a line 51 of the temperature at the point 52 in an outlet line 33. The signal from the comparator 58 is formed from the deviation of the actual exit temperature sensed at the point 52 by a detector 53, from the desired value of the temperature at this point, from a line 51 and is effected so that in a state of equilibrium, when there is no deviation, the signal to the unit 47 has a constant value and the signal to the comparator 50 then represents the difference between the exit and inlet temperatures extrapolated from the measured temperature differences at the points 37, 44. The characteristic of unit 58 is proportional-integral. The modified desired value signal from the comparator 50 is fed to the P.I. regulator 39 to control the adjustment of the temperature at the point 37. In further embodiments, the system is applied to (1) a heat exchanger divided up into a number of tubes (2) a heat exchanger where the temperatures to be extrapolated are measured near the outlet and (3) a heat exchanger wherein the exit temperature is influenced in dependence according to a number of temperature differences tapped off from measuring zones distributed over the whole heat exchanger surface.
Patent GB-1263012-A (GB)
Title: Piston ring and process for the manufacture of same
IPC: F16J9/26
Filed: 1970-08-13
Abstract: 1,263,012. Piston-rings. NIPPON PISTON RING K.K. 13 Aug., 1970 [15 Aug., 1969], No. 39035/70. Heading F2T. [Also in Divisions C6-C7] A cast iron or steel piston-ring 1 has on its outer periphery a Co-W coating 5 and an annular groove 3 provided with a lubricant filling 4. The ring is made by electroplating with a Co-W coating 5 before introducing and sintering a lubricant filling 4 of iron oxide and carbon powder together with water-glass or a thermosetting synthetic resin. The sintering of the lubricant filling at a temperature of 570 C. causes the hardness of the Co-W coating to become greater than that attained in a chromium coating raised to the same temperature. Fig. 2 (not shown) illustrates how the hardness of a chrome coating (A) decreases while the hardness of a Co-W coating (B) increases as the temperature is raised to 570 C.
Patent GB-919955-A (GB)
Title: Process and apparatus for the treatment of domestic refuse
IPC: C05F17/00
Filed: 1961-11-01
Abstract: 919,955. Fertilizers. BINNS, J. Nov. 1, 1961, No. 39067/61. Class 111. A process for making compost from domestic refuse comprises wetting the waste, partially fermenting it by static exposure to air, and after removing metals, grinding and screening, completing fermentation under controlled temperatures and moisture conditions. Prior to fermentation, the wetted waste, which may be supplemented by sewage sludge, may be reduced in size by suitable milling. In a preferred form of the invention, Fig. 1, refuse is placed in a pot 4, sprayed with water from an overhead spray (not shown) and transferred to fermentation cells 6 which may contain voidforming elements to aid aeration. After about 3 days, when the temperature rises to about 150‹F., compressed air is blown on to maintain this temperature for a further 3 days. The partially fermented mass is then transferred to hoppers 12 whence the material is conveyed by belts 13 past magnetic separators 14 and 15 and non-ferrous metal extractors 16, to rotating screen 17. Larger sized material e.g. # in. mesh or more, is conveyed to hammer mills 19, below the outlets of which are vibrating screens 20, from which oversized material is passed back for regrinding. The fine-ground material is then carried by bucket conveyer (not shown) to to the top of fermentation cells 22 to which air and water may be admitted as required to maintain the temperature at 150‹F. The quality .of the material may be enhanced by addition, either before or during fermentation, of aqueous solutions of nitrogen-containing compounds. The waste, before fermentation, suitably contains 45% to 65% by weight of water.
Patent GB-349437-A (GB)
Title: Improvements in apparatus for receiving and issuing bank notes
IPC: F01D1/12
Filed: 1929-12-23
Abstract: 349,437. Money-delivering apparatus; tills. CHIGER, S., 9, Wilbelmstrasse, Berlin. Dec. 23, 1929, No. 39342. Convention date, June 20. [Class 116.] In apparatus for receiving and issuing banknotes comprising rollers 6, 26, Fig. 1, and a web 29, intermediate rollers 18, 19 are driven from a spindle 15 so that a constant length of web is wound or unwound for each revolution of the spindle 15. The roller 19 may be removably mounted in a yoke 32 pivoted at 31, the yoke being secured in operative position by a screw 35. The Specification as open to inspection under Sect. 91 (3) (a) comprises a form provided with means for predetermining the number of notes to be issued and making a record thereof ; a slide 68, Figs. 4 (Cancelled) and 6 (Cancelled), stepped at 73 is set by rods f, the motion of the slide setting a member 64 into position for the predetermined number of ratchet teeth 65 to be engaged successively by a pawl 54, engaging a coupling 39, 40, and releasing a roller 59 from a locking disc 43. The subsequent actuation of the driving spindle 36 acts to return the parts to their original position, the ratchet teeth 65 being successively engaged by the pawl 54 carried by a cam-operated lever 51, and through gearing driving the intermediate rollers 46, 48 acting on the web 91. The initial setting of the slide 68 moves a rod 77 endwise and determines the number of pins 80 to be disposed under a record strip 81, and the operation of the mechanism causes the strip to be depressed on to and perforated by the pins by means of a die 84. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1270936-A (GB)
Title: Lining of cavities with heat insulating material
Inventor: JAGO EDWARD JOHN
IPC: B22D7/10
Filed: 1968-08-16
Abstract: 1,270,936. Lining mould. FOSECO TRADING A.G. 8 Aug., 1969 [16 Aug., 1968], No. 39407/68. Heading B3F. A method of lining a cavity, particularly a mould cavity, comprising applying to the cavity surface a self-supporting deformable refractory fibrous mat composition and applying a pressure so as to permanently deform the mat to conform to the contours of the cavity surface. The examples disclose the lining of cavities using an expandable bladder or an expandable former to apply pressure. Mats are prepared, by dewatering a 1% dispersion of aluminium silicate fibre in 30% colloidal silica or from aluminium silicate fibre, "novolac" resin and methanol. The lining is used in the risers of casting moulds and as a hot-topping insert for ingot moulds.
Patent GB-1140139-A (GB)
Title: Process for the production of the semiconductor element and a semiconductor element produced by this process
IPC: B60R19/04
Filed: 1966-09-06
Abstract: 1,140,139. Semi-conductor devices. BROWN, BOVERI & CO. Ltd. 6 Sept., 1966 [8 Sept., 1965], No. 39743/66. Heading H1K. A rectifier is produced by diffusing aluminium into the surface of a weakly doped (less than 10<SP>16</SP> atoms/cm.<SP>3</SP>) N-type silicon wafer to produce a weakly doped (less than 10<SP>16</SP> atoms/cm.<SP>3</SP>) P-type surface layer, Fig. 1 (not shown), which is then removed from the sides and upper surface by lapping, Fig. 2 (not shown). A goldantimony disc (2) is alloyed to the upper surface to produce a heavily doped (greater than 10<SP>16</SP> atoms/cm.<SP>3</SP>) N+type region, Fig. 4 (not shown), and an aluminium disc (3) is alloyed to the lower surface to produce a heavily doped (greater than 10<SP>16</SP> atoms/cm.<SP>3</SP>) P+type region, Fig. 5 (not shown). A molybdenum or tungsten carrier plate 4 is then soldered to the alloyed aluminium disc 3 and the edge of the wafer is ultrasonically machined to produce a conical frustum surface 5 and a portion 6 which is said to strengthen the edge of the wafer, Fig. 6. The impurity concentration gradient and the field strengths at the junctions are quoted and it is stated that the device can dissipate as much power under avalanche conditions in the reverse direction as in the forward direction.
Patent GB-1314139-A (GB)
Title: Magnetic thin film plated wire memory
IPC: H01F10/26
Filed: 1971-08-25
Abstract: 1314139 Magnetic storage devices FUJI DENKI KAGAKU KK 25 Aug 1971 [29 August 1970 29 September 1970] 39916/71 Heading H3B  A plated wire storage device has a magnetic keeper sheet 3, Fig. 2a, with protrusions 5 defining grooves for the plated wires 1; orthogonal drive lines 2 are partially embedded in the sheet 3 so that their upper surfaces are exposed in the grooves. The resulting magnetic flux patterns permit the wires to be close together, and reduce the drive currents needed. A second keeper sheet may overlie the device, as in Fig. 3, with the drive lines folded back over the plated wires. A conductive wire mesh or perforated sheet may be incorporated into the keeper, serving as elastic reinforcement and as a ground plane. The plated wires may be 0À1 mm. in diameter, and have a nickel permalloy coating. The keeper sheet is a high permeability ferrite powder in an organic binder. Each of the drive lines 2 may be a pair of wires, or a single multiturn wire, or a rectangular wire as shown.
Patent GB-1359488-A (GB)
Title: Articles with reduced thrombogenic effect
IPC: A61F2/06
Filed: 1971-08-26
Abstract: 1359488 Electrets KUREHA KAGAKU KOGYO KK 26 Aug 1971 [27 Aug 1970] 40165/71 Heading H1M An electret having a stable heterocharge is constructed so that its negatively charged surface is in contact with blood when used as an artificial blood vessel or the like, the surface exhibiting a low blood coagulating property. The stable heterocharge may be that revealed when the initial unstable heterocharge and the homocharge have decayed, and the decay may be brought about as described in Specifications 1,333,847 and 1,349,890. The electrode material may be polyvinylidene fluoride or chloride, acrylic resin, polyester, copolymers or mixtures thereof.
Patent GB-1403136-A (GB)
Title: Reagent for the colorimetric determination of calcium
IPC: G01N31/00
Filed: 1973-08-24
Abstract: 1403136 Reagent for the colorimetric determination of calcium BOEHRINGER MANNHEIM GmbH 24 Aug 1973 [30 Aug 1972 25 July 1973] 40187/73 Heading G1B A reagent for the colorimetric determination of calcium comprising a solution of murexide (acidic ammonium purpurate) in at least one di- and/or polyhydroxy alcohol containing from 0.01 to 0.2 mol of alkali metal alcoholate per litre of reagent, sufficient for the production of a pH from 10.5 to 13 in aqueous solution, may be prepared by dissolving an alkali metal alcoholate or an elemental alkali metal in the alcohol and thereafter dissolving murexide in the solution thus obtained. The di and/or polyhydroxy alcohol may be ethylene glycol, propylene glycol, long chain alkylene glycols, a condensation product based on ethylene or propylene oxide such as diethylene, triethylene and dipropylene glycols, glycerol, erythritol, pentaerythritol and pentaglycerol, and mixtures thereof. The reagent may also contain an alkali metal hydroxide and/or up to 30 vol per cent of a monohydroxy alcohol.
Patent GB-1155031-A (GB)
Title: Improvements in Spark Erosion Electrodes
IPC: B23H1/04
Filed: 1965-09-22
Abstract: 1,155,031. Spark erosion; making electrodes. MOLINS MACHINE CO. Ltd., and A. L. FOX. 21 Sept., 1966 [22 Sept., 1965], No. 40397/65. Headings B3A and BV3. A spark erosion electrode 1 has a forwardly facing working surface 6, 7 of a desired contour and an integral forward facing locating surface 4, 5. The electrode is made by electrolytically depositing a metal layer (26), Fig. 2 (not shown), on a former (21) of epoxy resin provided with a surface (23) of graphite. After stripping from the former, the electrode 1 is clamped at 14 between blocks 12 of a spark erosion machine. Locating lugs 15, 16 on the blocks engage in the locating surfaces 4, 5 of the electrode. The latter is used to machine recesses in a workpiece 11.
Patent GB-1126745-A (GB)
Title: A mounting for a self-lubricating spinning or twisting ring
IPC: D01H7/62
Filed: 1965-09-23
Abstract: 1,126,745. Valves. O. STEINWANDT, [trading as CHR. MANN MASCHINENFABRIK]. 23 Sept., 1965 [24 Oct., 1964; 13 Aug., 1965], No. 40642/65. Heading F2V. [Also in Division D1] A dosing-valve to control lubricant passing to a textile spinning-ring from a hollow rail which supports the holder for the ring and is connected to an intermittently or continuouslyoperating pressure-generator, comprises a body 3 with an internal passage and secured at its lower end into the rail 1, and receiving at its upper end a cap-nut 16 by which the holder 6 is secured to the rail. The passage has seatings for valves 32 and 29, both spring urged, the former towards its seating, and the latter away from it. The valve 29 ends in a piston 27 working loosely in the bore. When the pressure in the rail is low, the parts are positioned as shown, and oil rises around the piston into a chamber 26. When the pressure rises, until the valve 29 is forced against its seat, the piston lifts the oil above it and forces the valve 32 off its seat, for the oil to pass via an aperture 17 and a duct 12 to the inside of the ring. The end of valve 29 is conical; the dose of oil is determined by the fit of the valve on its seating.
Patent GB-1446724-A (GB)
Title: Automatic gain control circuits
IPC: H03G3/30
Filed: 1973-08-29
Abstract: 1446724 Automatic gain control HITACHI Ltd 29 Aug 1973 [30 Aug 1972] 40737/73 Heading H4R An automatic gain control signal SC1 is amplified Q3 and fed to the control electrode of a transistor Q6 of which that electrode is bypassed with respect to A.C. by forward biased PN junction diode means Q4, Q5, and of which another electrode is connected to a non-linear impedance Q7 to which is applied the signal T3 to be gain-controlled. The signal SC1 is the detected and integrated output of an audio amplifier and the impedance Q7 shunts one resistor of a potential divider providing the amplifier input. The base of Q6 is effectively A.C. earthed by Q4, Q5 so that Q6 and Q7 operate in pushpull relative to the signal input T3. The diode-strapped transistors may be replaced by diode pairs, coupling transistors Q8, Q9 by a load resistor, Q6 may be a MOSFET and the A.C. by-pass a Zener diode.
Patent GB-1432714-A (GB)
Title: 7- alpha-halomethyl-arly- acetamide- cephalosporin derivatives
IPC: C07D501/20
Filed: 1974-09-19
Abstract: 1432714 7 - [α - (Halomethyl - aryl)- acetamido]-cephalosporins YEDA RESEARCH & DEVELOPMENT CO Ltd 19 Sept 1974 [25 Sept 1973] 40812/74 Heading C2C Novel compounds I in which aryl is phenyl or 2-thienyl, X is Cl, Br or F, Y is H, Cl, Br, C 1 -C 4  alkyl, C 1 -C 4  alkoxy or CH 2 X (with the proviso that when aryl is 2-thienyl, Y is H), Z is a bond, O or S (with the proviso that when aryl is 2-thienyl Z is a bond), W is H, Me, NH 2 , OH, COOH or SO 3 H (with the proviso that when Z is O or S, W is other than OH), R<SP>1</SP> is H or acetoxy and R is H or a cation are prepared by reaction of 7-aminocephalosporanic acid or 7-amino-3-desacetoxycephalosporanic acid or a salt thereof with an acid (V) or a functional derivative thereof (preferably the acid chloride) with the proviso that if W is NH 2  this group is protected by t-BuO-CO- or B 3 O-CO-. Compounds V are prepared by halomethylation of compounds IV with the proviso that when W is NH 2  this group is blocked by acetyl. The acid chloride of compounds V is prepared by reaction of the acid with thionyl chloride. 2-Bromomethylphenyl-acetic acid is prepared by bromination of 2 - hydroxymethyl - phenylacetic acid lactone which is formed as a by-product during the reaction of phenylacetic acid with paraformaldehyde and HCl gas in the presence of ZnCl 2 . Compounds I are antibiotics and form a pharmaceutical composition which may be administered orally, parenterally or topically.
Patent GB-842970-A (GB)
Title: Glass bending mold
IPC: C12C7/26
Filed: 1958-12-18
Abstract: 842,970. Bending and tempering glass sheets. LIBBEY-OWENS-FORD GLASS CO. Dec. 18, 1958 [Jan. 2, 1958], No. 40866/58. Class 56. For bending blank size glass sheets which are subsequently cut to pattern outline, a bending mould comprises a substantially continuous shaping rail 16, 17, 18 enclosing an area greater than that of the pattern to be cut, a heat retaining member 21, 23, 24 spaced inwardly of the shaping rail and within the area defined by the pattern and an auxiliary shaping rail 29, 30, 31 disposed within the main shaping rail and outwardly of the pattern area. The mould shown is in three parts with each end section rail 16-17-16 enclosing the addition rail 29-31-30 which lies substantially parallel to the V-shaped end 21 of the heat retaining member which gives an area of compression along the edge of the pattern cut sheet, the rail 29-31-30 preventing undue sagging of the sheet at the critical narrow ends.
Patent GB-1472075-A (GB)
Title: Injection moulding
IPC: G02C1/00
Filed: 1974-09-19
Abstract: 1472075 Injection moulding distributer valve BILLION SA 19 Sept 1974 [21 Sept 1973] 40891/74 Heading B5A  Articles having masses of at least one material embedded here and there in at least one other material, e.g. articles of imitation tortoiseshell, are made by injection moulding in apparatus comprising separate plasticizing units 7, 8 connected to a mould 2, 3 by a distributer 6 and a single channel 27. As shown in Fig. 1 the distributer 6 comprises a cylinder 15 rotated at variable speed by a drive 20. The surface of the cylinder 15 has peripheral grooves 21, 22 which are in constant communication with channels 23, 24 connected to the units 7, 8. Channels 25, 26 extend axially from the grooves 21, 22 and are brought in turn into communication with the channel 27 as the cylinder 15 rotates. In Fig. 2 (not shown). One material is supplied continuously through passages 24, 22, (3) and the other intermittently. More than two materials may be used, and injection may be effected laterally instead of centrally as shown in Fig. 1.
Patent GB-1031496-A (GB)
Title: Novel graft interpolymers
IPC: C08F287/00
Filed: 1964-10-07
Abstract: Graft polymers are made by polymerizing a monovinyl aromatic compound, e.g. styrene, or a mixture thereof with acrylonitrile, methyl methacrylate and/or alpha-methyl styrene, in the presence of a block copolymer prepared from a conjugated diolefine and a monovinyl aromatic monomer, preferably a butadienestyrene block copolymer.  The grafting reaction is preferably carried out either by bulk polymerizing the monomer-polymer mixture in a first stage, followed by polymerization in aqueous suspension in a second stage, or by polymerizing a monomer-polymer mixture containing 3 to 30% of ethyl benzene.  Also present during polymerization may be perioxide catalysts, e.g. tert.-butyl perbenzoate and benzoyl peroxide.
Patent GB-1281476-A (GB)
Title: Improvements in or relating to bending strain transducers
IPC: G01B7/28
Filed: 1970-08-26
Abstract: 1281476 Strain gauge FRAUNHOFERGESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E V 26 Aug 1970 [26 Aug 1969] 41054/70 Heading G1S Strips used in bending elongation tests comprise grids 1 & 2 spaced apart within support material comprising a non-homogeneous elastic layer 3 attached to two stiffer load connecting ends 3b.
Patent GB-1280190-A (GB)
Title: Improvements in flight control means for missiles
IPC: F42B15/01
Filed: 1969-08-18
Abstract: 1280190 Automatic steering control MESSERSCHMITT-BOLKOW BLOHM GmbH 18 Aug 1969 [23 Aug 1968] 41155/69 Heading G3R A missile which, in flight, rolls about its longitudinal axis, has its attitude stabilized about its pitch or yaw axis by a gyro which, during each complete roll of the missile, closes a circuit for a duration dependent on the attitude deviation. In Fig. 1, a missile 1 rotating continuously about its longitudinal axis carries a gyro 5 the rotor shaft 6 of which is perpendicular to the missile pitch axis with the missile at the desired pitch attitude, shaft 6 only just engages the apex of a contact 7 in circuit with a source 8 each time the missile rotates but; if the pitch attitude deviates so that the relative position of the gyro shaft is 6', the period of contact during each revolution is such that a correspondingly positioned control surface 3 is moved into the path of the outlet of a jet propulsion unit 2 for a corresponding time to correct a pitch attitude. In a modification, triangular shaft contacts fixed at each end of the gyro shaft co-operate with pin contacts fixed to the missile. Use of inductive or photo-electric pick-offs and pivotted or offset jets is referred to. A further gyro may control missile attitude about the yaw axis by adjusting the same or another jet control surface. The automatic attitude control systems may only be operative during the initial portion of the flight until switched off by the first signal transmitted to the missile to guide it from a distance with the aid of an infrared detector. The position of the pick-off may be adjusted longitudinally by remote control or in accordance with a programme to steer the missile.
Patent GB-1202978-A (GB)
Title: Improvements relating to warm air registers
Inventor: COTTON JOSEPH HENRY
IPC: A62C2/24
Filed: 1968-06-08
Abstract: 1,202,978. Fusible link-operated shutters. BLOXWICH LOCK & STAMPING CO. Ltd. 19 June, 1969 [8 June, 1968; 29 Aug., 1968], Nos. 27362/68 and 41203/68. Heading A5A. A warm air register for ducted central heating comprises parallel pivoted interconnected vanes 12 mounted in a frame 11 behind a panel 10 for simultaneous movement between open and closed positions, and operated by a fusible link-actuated spring 13 carried on the frame which acts to close the vanes or maintain them closed. In one embodiment, one end 18 of torsion spring 14 mounted on spindle 15 in bracket 16 is pressed under stress into a position parallel to an upstanding lug 19 on the bracket and attached thereto by a gapped ring 21 which encircles both 19 and 18, the gap being closed by a fusible plug of a size such that on melting it permits spring end 18 to swing round and urge vanes 12 into the closed position. In the modification of Figs. 6-10, a radially-projecting loop extending from the middle of the coiled spring, and an upstanding lug on the bracket, are engaged in separate slotted members which are intersecured by fusible metal.