baber/WOPTO huggingface dataset:
Patent GB-1329665-A (GB)
Title: Photosensitive polymer and composition
IPC: C08L1/00
Filed: 1971-09-16
Abstract: 1329665 Photosensitive polymers MITSUBISHI CHEMICAL INDUSTRIES Ltd 16 Sept 1971 [16 Sept 1970] 43322/71 Headings C3P and C3R [Also in Division G2] Photosensitive polymers containing groups of the formula Ar(CY = CX) n -COO- are obtained by reacting a halogen-containing polymer with a salt of the acid Ar (CY = CX) n COOH in which Ar is an aryl or substituted aryl group, X and Y are each hydrogen, halogen, cyano or nitro and n is 1 or 2. Suitable halogen-containing polymers are polymers of epichlorhydrin, epibromhydrin, 1,2-dichloro.2,3-epoxypropane, 3,3- bis-(chloromethyl)oxetane and 3,3-bis-(bromomethyl)oxetane and their copolymers with other alkylene oxides or PVC, vinyl chloride-vinyl acetate copolymer or poly-#-chloroethyl vinyl ether. In examples such polymers are reacted with sodium cinnamate, trimethyl benzyl ammonium cinnamate, tetraethyl ammonium cinnamate, potassium cinnamate or the trimethyl benzyl ammonium salt of #-nitro-phenylvinyl carboxylic acid, #-phenyl-α-cyano-vinyl carboxylic acid or 4-phenyl-butadiene carboxylic acid. The reaction is effected in dimethyl formamide preferably in the presence of a catalyst, e.g. benzyl trimethyl ammonium chloride, or pyridine. Solutions of the products are used to prepare photosensitive coatings. Suitable solvents are dimethyl formamide, or tetrahydrofuran/xylene and a sensitizer may be added, e.g. 5-nitroacenaphthene. The coatings may be exposed for the production of printed wiring and printing plates.
Patent GB-994326-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28D7/12
Filed: 1962-11-16
Abstract: 994,326. Tubular heat exchangers. SVENSKA MASKINVERKEN AB. Nov. 16, 1962 [Nov. 18, 1961], No. 43419/62. Heading F4S. In a heat exchanger, such as an oil preheater or cooler, comprising a pair of substantially concentric tubes, the inner tube 1 carries uniformly spaced pin-fins 12 which project across the annular space between the two tubes, and the path of fluid flowing through the annular space is lengthened by means of axially spaced transverse baffles of part annular form, a slot through each baffle being angularly staggered with respect to the slots in the adjacent baffle(s). In an oil preheater as shown, Figs. 1 and 3, steam enters the apparatus through a pipe 3 and passes along the inside of the inner tube 1 to a discharge connection 5. Oil enters the annular space 9 through an inlet connection 10, and leaves through an outlet 11. A longitudinal partition 13, Fig. 3, extends along the annular space, its edges contacting the inner tube 1 and the outer tube 2 respectively. A series of baffles 14 extend transversely across the annular space, each having a slot or cutout section 15 bounded by radial edges 16 and 17 of the baffle. Every other baffle 15 has its edge 16 against one side of the partition 13, while the intermediate baffles 15 have their edges 17 against the other side of the partition, thus providing a tortuous path for the oil. Each baffle 15 consists of two arcuate sections 18, 19, pivotally joined by a rivet 20, and a spring 21 holds each baffle against the inside of the outer tube 2, and in its correct angular position. In an alternative form of baffle, Fig. 5, each baffle 22 is a single plate with a section cut out, bounded by mutually parallel edges 23 and 24 tangential to the inner tube 1, the cut-out in each baffle being displaced by 180 degrees from the cut-out(s) in the adjacent baffle(s). The baffles 22 are held in position by springs 26, 27 engaging slots 25 in the baffles. The spacing of either type of baffle may be altered after removal of the inner tube 1 from the outer tube 2, and a closer spacing may be employed at the end of the apparatus at which the oil is hottest, as in Fig. 1. The rows of pins 12 prevent axial movement of the baffles. A series of arcuate baffles may be arranged to give an approximately helical oil path through the annular space.
Patent GB-1139938-A (GB)
Title: Improvements in or relating to sealing means for doors, partitions or the like
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: E06B7/18
Filed: 1966-09-28
Abstract: 1,139,938. Door &c. seals. GEO. W. KING Ltd. 14 Sept., 1967 [28 Sept., 1966], No. 43441/66. Heading E1J. A seal for a door, partition or other movable or demountable structural element 10 comprises a flexible sealing strip 13 secured along both its longitudinal edges as to the sides of a channel 11, 12 in the bottom or sides of a door &c. and attached along its central intermediate portion to a rigid strip 18 by clamping strips 16, 17, the strip 18 being lifted or lowered_as desired by a dead centre mechanism operated by a lever 28 and this mechanism comprises a plurality of toggle linkages 19 pivoted at C to the strip 18 and at B to lever arm 20, the pivot C pivotally carrying one end of an arm 25 connected at its other end to one 'limb of a hinge element 26, pivoting about an axis 27. These toggle linkages are spaced apart along the width of the door and operated by lever 28 on shaft 21 jburnalled in bearings 22 attached to a frame member 23 of the door body. The sealing element 13 may be in two complementary parts.
Patent GB-1511589-A (GB)
Title: Method of consolidating loose or incompetent subterranean formations
IPC: C09K8/575
Filed: 1976-10-20
Abstract: 1511589 Consolidating wells HALLIBURTON CO 20 Oct 1976 43587/76 Heading E1F A method of consolidating an incompetent formation comprises a) contacting the formation with an aqueous preflush solution to condition the formation for the acceptance of a hardenable organic resin; b) contacting the formation with the hardenable organic resin; c) contacting the formation with a spacer solution so that the resin is distributed therein; and d) causing the resin to harden. The resin, preferably an epoxy resin, a phenol-aldehyde resin, a furfuryl alcohol resin, a urea-aldehyde resin or a mixture thereof, is combined in an aqueous or liquid hydrocarbon carrier with a resin-to-sand coupling agent, e.g. an amino silane having the general formula where R, is a straight or branched chain C 1-4  alkylene radical, R 5  is H, a C 1-4  alkyl amine or a C 1-4  alkyl radical, R 6  is a C 1-2  alkyl radical, and m is an integer of from 1-4; a monomeric resin diluting liquid, e.g. a phenol, formaldehyde, furfuryl alcohol or furfural; and a dispersing agent, e.g. furfural, diethyl phthalate or a mixture thereof. The resin is hardened by an aqueous solution or an inorganic acid, organic acid or acid forming chemicals. The spacer solution may be an aqueous or hydrocarbon liquid, the latter having a non-emulsifying cationic surface active agent. A hard permeable pack may be formed by placing a quantity of resin coated, particulated solids between the formation and the wellbore. Any of the aqueous solutions mentioned above may contain an alkali metal halide, an alkaline-earth metal halide, or a mixture thereof and a non-emulsifying cationic surface active agent.
Patent GB-1187625-A (GB)
Title: Crucible-Free Zone-by-Zone Melting of Crystalline Rods
IPC: C30B13/28
Filed: 1967-09-25
Abstract: 1,187,625. Zone-melting. SIEMENS A.G. 25 Sept., 1967 [28 Sept, 1966], No. 43595/67. Heading B1S. A monocrystalline rod 6 of silicon is formed on a seed 2 from a molten zone 5 heated by an induction coil 3 and fed by an offset supply rod 1, rods 1 and 6 both being rotated, preferably in the same direction. The supply rod is moved to the offset position when, at the beginning of the process, the diameter of the recrystallizing rod reaches the desired value. The distance between the axes of the supply and product rods may equal the radius of the product rod. The rotation of the supply rod may be reciprocatory. The supply rod may be periodically reciprocated or eccentrically rotated at an amplitude equal to half the radius of the product rod.
Patent GB-921150-A (GB)
Title: Means for preventing the freezing-in of air vent valves for heat exchangers in air condensation systems
IPC: F16K24/04
Filed: 1960-12-20
Abstract: 921,150. Valves. LICENCIA TALALMANYOKAT ERTEKESITO VALLALAT. Dec. 20, 1960 [Dec. 31, 1959], No. 43707/60. Class 135. [Also in Group XIII] A float-operated air-vent valve 4 for an aircooled steam condenser 1 communicates with the ambient air through the downwardlyopening end of an elbow 6, the effect being that a cushion of relatively warm air is retained within the elbow and prevents the valve from freezing on to its seat during adverse weather conditions.
Patent GB-1475331-A (GB)
Title: Beam deflection arrangements
IPC: H04N3/227
Filed: 1974-10-09
Abstract: 1475331 Cathode-ray tube circuits SONY CORP 9 Oct 1974 [11 Oct 1973] 43736/74 Heading H4T A centring circuit for a cathode-ray tube display device (e.g. a television receiver) comprises a pair of diodes D1, D2 (Fig. 1) one pair of oppositely poled ends being connected to the junction of the horizontal deflection coil 5 and the sawtooth capacitor 6 via an inductance 11 whilst the other ends of the diodes are supplied from the voltage supply 7 via a potentiometer 13 (which may be replaced by a tapped inductance). In operation variation of the position of the slider of the potentiometer (or the tapping of the inductance) controls the conduction time of the diodes differentially so that the axis of mean value shifts either above or below the voltage Vcc and determines the direction in which the centring current flows. A detailed explanation of the operation of the arrangement emphasizing the function of the inductance 1 is described with reference to waveforms Figs. 2A-2E, Figs. 3A-3D and Figs. 4A-4D (none shown).
Patent GB-1076667-A (GB)
Title: Improvements in or relating to cine-projectors
IPC: G03B21/32
Filed: 1965-10-15
Abstract: 1,076,667. Cine projection and copying apparatus. CHIRANA, ZAVODY ZDRAVOTNICKE TECHNIKY OBOROVY PODNIK ZAVODY MODRANY. Oct. 15, 1965 [Dec.9, 1964], No.43768/65. Heading G2E. In a cine projector which permits the enlargement of single exposures, and also the contact copying of the processed enlargements on to photo-sensitive material carried in a cassette 21, the objective lens tube 11 is axially movable in bush 13 and has a mirror 8 directing the projection beam on to screen 9, cassette 21 being pivotable about spindle 29 to intercept the projection beam and its support 28 being coupled by groove and pin to an adjustment ring 23 bearing a cam 26. Rotation of ring 23 by means of handle 22 swings cassette 21 into position and the engagement of cam 26 with flange 30 of tube 11 refocuses lens 7 on to the exposure plane 31 of the cassette. Wheel 10 is used to focus lens 7 on to screen 9, tube 11 being moved against spring 17. The brightness of lamp 3 is controlled for exposures by a shutter lever 20, and a time-switch is provided. For the contact printing, film F is removed from gate 5 and the processed exposure 40 to be copied is inserted in the exposure plane 31 of the cassette in front of the unexposed stock 32.
Patent GB-1490204-A (GB)
Title: Hydraulic elastomer
IPC: C08K5/14
Filed: 1974-10-10
Abstract: 1490204 Bis-(t-butylperoxyisopropyl)benzene SWS SILICONES CORP 10 Oct 1974 [11 Oct 1973] 43929/74 Heading C2C [Also in Division C3] Bis - (tert - butylperoxyisopropyl)benzene (mixed m and p isomers) is purified by recrystallization from a solution of 15 p.b.w. peroxide in 80 p.b.w. methanol and 5 p.b.w. water.
Patent GB-1011477-A (GB)
Title: Rotary piston internal combustion engine
IPC: F02B55/04
Filed: 1964-10-29
Abstract: 1,011,477. Rotary-piston internal combustion engines. NSV. MOTORENWERKE A.G. and WANKEL G.m.b.H. Oct. 29, 1964 [Nov. 22, 1963], No. 44075/64. Heading F1F. In a rotary-piston I.C. engine, particularly of the epitrochoidal type, with a liquid-cooled piston and an air-cooled housing in which the individual phases of the working cycle of the engine always take place in the same region of the housing, the liquid cooler is located in the cold region of the housing, i.e., where the intake and compression phases take place between the inlet duct 8, Fig. 2, and the sparkplug 7 in the direction of piston rotation D. The cooler comprises radially-spaced passages 12, Fig. 1, extending circumferentially around the housing from a common inlet collecting space 26 connected to a liquid inlet 24 to a common collecting space 27 connected to a liquid outlet 25. The passages 12 are formed by recesses 15 in a central housing portion 2 and corresponding aligned recesses 16 in side parts 3, 4 of the housing. An axial-flow blower (not shown) passes cooling air through axially extending passages 13 in the central portion and side parts with the passages 13 in the cold region of the housing extending between the liquid coolant passages 12. The heat extracted from the liquid coolant in the cold region of the housing renders this part of the housing less cold than would otherwise have been the case with consequential more uniform cooling of the housing as a whole and a lessening of the thermal stresses therein. In order to achieve good abutment between the side parts 3, 4 and the central portion 2 in the cold region of the housing additional seals and additional bolts 20 may be necessary.
Patent GB-441783-A (GB)
Abstract: 441,783. Press - button fasteners. SHORT & MASON, Ltd., Aneroid Works, Walthamstow, and HURST, C. G., 27, Prospect Place, Woolwich, both in London. Aug. 15, 1934, No. 23524. [Class 44] [See also Groups XIV and XIX] A flanged instru. ment such as a gauge is held with its flange a<1> bearing on the front of a board or standard b and with its casingafitting into a hole in b by means of a pin p screwed into the back of the casing a, a sleeve n, preferably attached to a U-shaped member h co-operating with the spring jaws p2 of the pin p to cause the member h to bear on the back of the board b to hold the instrument in place. The sleeve n is forced over the jaws p<2> which spring apart when the sleeve n is in position to hold it in place. A spring s is provided between the casing a and the member h. The instrument is released by means of a tool t having a recess in its end, this tool being adapted to be forced onto the ends of the spring jaws p<2> to move them together to permit the sleeve n to be slipped off the pin p and bush f.
Patent GB-1156228-A (GB)
Title: A Vehicle having Body and Tractor Units with a Hitch therebetween
IPC: B60P3/40
Filed: 1966-10-04
Abstract: 1,156,228. Vehicle hitches. CATERPILLAR TRACTOR CO. 4 Oct., 1966 [23 Oct., 1965], No. 44220/66. Heading B7T. A material handling vehicle, as described in co-pending Specification 1,116,717, comprises tractors 10, 11 supporting a dump-doored body 12 and connected to the body 12 by king-pin hitches 14, 15, each comprising a king-pin formed as a piston 18 bolted by a flange 19 to a tractor 10 or 11, and a cylinder 20 slidably embracing the piston 18 and bolted by cylinder brackets 32 to a structure 28, Fig. 3, supported by beams 34, 35 on the body 12, wherein hydraulic fluid under pressure in the cylinder 20 above the piston 18 provides a fluid bearing which sustains and raises the body 12. The cylinder 20 carries a seal 21, a perforated guide ring 22, steering arms 44, and stops 24, 26, and a support element 38 thereon is bolted to a tongue 41 on the structure 28. Each tractor has a source (not shown) of oil under pressure and supplies accumulators in the pistons 18 and also supplies a valve controlling flow of oil to the cylinder 20. The valve comprises a spool having a stem engageable by the piston 18, and a bore transmitting the cylinder pressure to the upper end of the spool, the spool also having a port registrable with the supply line so that the oil bearing is maintained. The body 12 may be raised by the opening of either of two valves provided, one in the drive cab of each tractor, which opening moves the spools so that the port is aligned with the supply line. The body 12 may be lowered by venting pressure via the two valves.
Patent GB-1021653-A (GB)
Title: Improvements in or relating to cranes
IPC: B66C23/60
Filed: 1962-11-22
Abstract: 1,021,653. Mobile jib-cranes for ships. ATLAS-WERKE A.G. Nov. 22, 1962 [Dec. 16, 1961], No. 44235/62. Heading B8B. A jib crane 4, Fig. 1, is pivoted about a horizontal pivot 3 to a carriage 2 which runs on longitudinal rails 6 on the deck of a ship. The jib does not luff in a vertical plane but is off-set so that the head 8, Fig. 2, moves over a hatch 9 from one side of the ship to the other. To minimize swinging of the load, the hoisting rope 14 is supported from the jib head 8 at points 10, 11. To provide level luffing the hoisting rope passes round rockable pulleys 17 on top of a post 18 mounted on the carriage 2 and rockable pulleys 16 on the boom. Rams 13 luff the boom. To minimize torsional stress in the jib the point of intersection of the line of the cable 14 with the pulley block 17 is arranged perpendicularly above the point of intersection of the centre line of the jib and the axis of rotation of the jib. Two cranes may be operated independently or commonly driven and controlled. The two carriages 2 may be coupled together and the load may be supported by one or both jibs. Either one or both cars may have driving mechanism and brakes are provided. The transverse head 8 of the jib may be pivoted so as to remain horizontal at all times.
Patent GB-1062430-A (GB)
Title: Storage means preferably for double track circular conveyors
Inventor: RICHTER CHRISTIAN
IPC: B61B10/02
Filed: 1964-10-30
Abstract: 1,062,430. Conveyers. INSTITUT FœR FÍRDERTECHNIK LEIPZIG. Oct. 30, 1964, No. 44377/64. Heading B7L. A storage means for load carriers 9 propelled along a track 16 by dogs 14 attached to carriers 13 of a chain 12, comprises several stations each having a lever 3 pivoted at 4 and carrying a ramp 5 and a stop 2; the lever 3 is moved by an electromagnet 11 against the action of a spring 7; a switch 10 mounted adjacent track 16 controls the electromagnet of a following station. In operation, the electromagnet 11 of a leading station is energized to project ramp 5 into the path of dog 14 to raise it through extension 17 clear of the load carrier, the stop 2 being projected to halt the carrier and a pivoted stop 8 prevents the carrier running back. The carrier 9 actuates switch 10 which causes the electromagnet at the following station to stop a following carrier and so on. The springs withdraw the levers 3, ramps 5 and stops 2 when the leading electromagnet has been de-energized to release the leading carrier and subsequent carrier.
Patent GB-445961-A (GB)
Abstract: 445,961. Atmospheric gas burners. WILKINSON, A. E., and ACME ENGINEERING CO., Ltd., Stocks Hill, Holbeck, Leeds. Dec. 15, 1934, No. 36013. [Class 75 (i)] A spring-pressed air-regulating disc D on the gas nipple J is operated by a pivoted lever F controlled by a cam C on the gas tap G. The disc is connected by pins to the forked end F<1> of the lever. A gas tap may be provided with a double cam for controlling two air-regulators.
Patent GB-1167346-A (GB)
Title: Process and apparatus for Dispensing Plaster Slurry
IPC: B28C5/08
Filed: 1966-10-06
Abstract: 1,167,346. Mixing apparatus. UNITED STATES GYPSUM CO. 6 Oct., 1966 [11 Oct., 1965], No. 44728/66. Heading B1C. Mixing-A mixer for gypsum slurry preparation comprises a housing having inlets 11, 12, 13 for gypsum, water and foam and a rotor disk 17 with upstanding peripheral rings 19 interdigitating with rings 21 depending from the housing cover 10c. There are also pegs 18, 18a on the disc and cover and 19a on the rings 19. The outermost ring 22 has teeth 26 with bevelled leading edges 27 which assist centrifugal force in urging the slurry outwardly into a relief channel 25 and thence into a vertical conduit 14 in which may be a screw conveyer 30. Distributing-The slurry enters a central inlet 33 in a horizontal casing 15 containing two screw conveyers 45 (only one being depicted) which convey it towards the ends of the casing so that it is discharged as a sheet through a longitudinal slot 46 on to a worktable 1 where it is encased between two paper webs 3, 7 to form a gypsum board 8.
Patent GB-919273-A (GB)
Title: Modified nickel hydrogenation catalyst
IPC: C07C29/17
Filed: 1961-12-14
Abstract: A process for preparing a copper-modified nickel hydrogenation catalyst comprises mixing a water-soluble copper salt with a water-soluble inorganic alkaline hydroxide in an aqueous solution at a pH high enough to insolubilize the copper salt in the form of suspended copper oxide, admixing the resulting aqueous suspension of copper oxide with a finely divided nickel catalyst, and treating the resulting admixture with gaseous hydrogen to deposit metallic copper on the nickel catalyst.  Specified copper salts are sulphate, chloride, nitrate, acetate, formate and cyanide. The nickel catalyst may be supported, e.g. on C, SiO2 or Al2O3 or may be of the Raney-nickel type.  Specified alkaline hydroxides are NaOH, KOH, LiOH, Mg(OH)2, Ba(OH)2 and Sr(OH)2.  An example describes the hydrogenation of 1,4 butynediol to 1,4 butanediol.  U.S.A. Specifications 2,950,326, 2,953,605 and 2,967,893 are referred to.ALSO:Hydrogenation catalysts, prepared by mixing a water soluble copper salt with a water soluble inorganic alkaline hydroxide in an aqueous solution at a pH high enough to insolubilise the copper salt in the form of CuO, admixing the suspended CuO with a finely divided Ni catalyst and reducing the CuO to Cu with hydrogen, are used to reduce aiiphatic and aromatic nitro compounds to amines, ketones and aldehydes to the corresponding alcohols, ethylenic compounds to the corresponding saturated compounds and acetylenic compounds to the corresponding ethylenic or saturated compounds. An example describes the hydrogenation of 1.4 butynediol to 1:4 butanediol.  U.S.A. Specifications 2,950,326, 2,953,605 and 2,967,893 are referred to.
Patent GB-1158798-A (GB)
Title: Improvements in and relating to Power Driven Saws
IPC: B23D55/06
Filed: 1967-10-03
Abstract: 1,158,798. Sawing. McCULLOCH CORP 3 Oct., 1967 [28 Dec., 1966], No. 44896/67 Heading B5L. A power-driven band saw machine 10 comprises a radiallyflexible band 22 arranged to be rotated about a circular support member 20 by means of a sprocket drive 24. The support member is secured to an extension 18 of the machine housing and is split at 40 so that by releasing screws 35, 36 the diameter of the support may be increased so as to tension the band. The saw band is formed with pairs of cutting teeth 44 extending radially outwardly and pairs of guide members 46 extending radially inwardly so as to straddle the support member. The pairs of cutting teeth are arranged in groups of four as shown in Fig. 3, wherein the inclination of the teeth in each pair is different from the other pairs in the group. The sprocket 24 is arranged to engage with the cutting teeth 44 and is rotated via a chain drive driven by a petrol engine; alternatively the sprocket can be arranged to engage with the guide members. The two ends of the band 22 may be joined by welding, brazing or by an adhesive.