baber/WOPTO huggingface dataset:
Patent GB-1202910-A (GB)
Title: Electric insulating shaped body and insulating composition therefor
IPC: H01B3/44
Filed: 1967-12-07
Abstract: 1,202,910. Electrically insulating polymer compositions. FURUKAWA DENKI KOGYO K.K. 7 Dec., 1967 [8 Dec., 1966 (2); 9 Dec., 1966 (2); 29 March, 1967 (2)], No. 55732/67. Heading C3P. [Also in Divisions H1 and H2] Electrical conductors are insulated with a rubber or plastics material containing from 0À1 to 10 weight per cent of an organic semi-conducting material to provide insulating material having a surface resistivity of less than 10<SP>12</SP> ohms and a volume resistivity of greater than 10<SP>10</SP> ohms/cm. Specified rubbers and plastics are natural rubber, butyl rubber, ethylene/ propylene rubber, ethylene/propylene/diene terpolymer rubber, polyethylene, ethylene/acrylate salt copolymers, ethylene/vinyl acetate copolymers and polyvinyl chloride. The compositions may also contain plasticizers, e.g. polybutene, hydrocarbon oils and dialkyl phthalates; stabilizers, e.g. 4,4<SP>1</SP>.thiobis(6.t.butyl.m-cresol), phenyl isopropyl-p-phenylenediamine, antimony trioxide and tribasic lead maleate; and crosslinking agents, e.g. sulphur, quinone dioximes and organic peroxides, and accelerators, e.g. thiurams, thiazoles, dithiocarbamates and metal oxides. Extensive lists of suitable semi-conducting materials including adducts of alkylene oxides with amines, diamines and imidazolines, and metal salts of alanines, diamines, imidazolines and amido-amines, are given and examples describe conductors insulated with rubber and plastics materials comprising (1) polyethylene, (2) ethylene/metal acrylate copolymer, (3) dicumyl peroxide cured polyethylene stabilized with 4,4<SP>1</SP>- thiobis(6 - t-butyl-p-cresol), (4) butyl rubber compounded with zinc oxide, stearic acid, clay, carbon black, aromatic hydrocarbons and red lead and cured with dibenzo quinone dioxime and sulphur, (5) ethylene/propylene rubber compounded with zinc oxide, lead oxide, carbon black, clay and polymerized trimethyl dihydroquinoline and cured with dicumyl peroxide and triallyl cyanurate, and (6) polyvinyl chloride compounded with dioctyl phthalate, tribasic lead sulphate, dibasic lead stearate, clay and antimony trioxide; and semi-conducting compounds selected from adducts of ethylene oxide with laurylamine, stearylamine, cocopropylenediamine, tallow propylenediamine, 1 -hydroxy-2-heptadecyl- 2-imidazoline and 1-aminoethyl-2-undecyl-2- imidazoline; calcium salts of 1-hydroxy-1.hydroxyethylene-2-heptadecyl imidazolinyl acetic acid and N - heptylamidoethylene - N - hydroxyethylene-N-carboxymethylene amine; lead salt of N-octadecyl-#-alanine; magnesium salt of 1- hydroxy - 1 - hydroxyethylene - 2 - undecyl imidazolinyl acetic acid; and barium salt of N - cocopropyl - N<SP>1</SP> - carboxyethylene trimethylene diamine.
Patent GB-1183249-A (GB)
Title: Method and Device for the Honing of Conical Bores
Inventor: ROHR ALFRED
IPC: B24B33/02
Filed: 1967-12-08
Abstract: 1,183,249. Honing conical bores. A. ROHR. 8 Dec., 1967, No. 56053/67. Heading B3D. A method of honing a conical bore includes the step of effecting a relative rotational movement between honing stone holders and expanding means associated therewith to adapt honing stones held in the holders to the particular diameter of the conical bore to be honed. A device for carrying out the method includes a honing tool comprising a central spindle at one end of which there are secured expanding means, an outer body which is mounted rotatably on the central spindle, honing stone holders which are guided in the outer body and are operatively connected to the expanding means, and means for resiliently coupling the central spindle and the outer body to one another. A honing tool comprises a central spindle 1 slightly thickened at one end to serve as a handle and carrying at its other end eccentrically arranged cylindrical pins 2 engaging the rounded inner ends of holders 4 mounted in slots 3a in an outer body 3; the holders 4 carry honing stones 4a. A nut 5 on the body 3 has a shoulder 5a within which is a torsion spring 6, one end of which is attached to the nut 5, the other end being hooked round a pin 7 projecting from the spindle 1 through a slot in the body 3. The nut 5 is turned to load the spring 6 and then secured to the body 3 by a screw 8. To insert the tool into a bore the spindle 1 and body 3 are relatively turned to permit garter springs 9 to collapse the tool; during honing of a conical bore the spring 6 maintains the tool expanded. The work is rotated.
Patent GB-1259728-A (GB)
Title: Type cartridge for selective printing apparatus
Inventor: CUNNINGHAM JAMES MASON
IPC: B41J1/20
Filed: 1970-11-26
Abstract: 1,259,728. Selective printing. INTERNATIONAL BUSINESS MACHINES CORP. 26 Nov., 1970 [15 Dec., 1969], No. 56357/70. Heading B6F. In a selective printer (Fig. 1) a type cartridge 10 comprises a plurality of type-carriers 11 guided along a print line by a continuous guide rail 12a. Each type-carrier has a plurality of type levers 11a pivoted thereto. Timed impact by a plurality of hammers 24 causes a line of print to be built up between line spacing of the paper web 13 across the platen 23. Each typecarrier 11 has a number of parallel slots (11h, Fig. 3) to accommodate a plurality of typelevers 11a pivoted to a pin (11i). A transverse recess (11k) accommodates a block (11l) which seats a plurality of springs (11n, 11o), which are used to maintain the type-levers 11a in a neutral position. The block (11l) may be of resilient plastics material to act as a damper for the type-levers. A hard block (11q) in a slot (11p) acts as a backstop for the type levers. Hammer construction.-The striking face of each hammer is provided with inclined cam surfaces (24b, Fig. 3) adjacent either edge, while the corresponding rear face of each type-lever has similar cam surfaces (11r). These cam surfaces provide for rapid return of the hammers and minimize interference between the hammers and the type levers.
Patent GB-1173660-A (GB)
Title: Averaging Frequency Combiner.
Inventor: RORDEN ROBERT JAMES
IPC: H03L7/07
Filed: 1967-12-13
Abstract: 1,173,660. Automatic frequency control systems. VARIAN ASSOCIATES. 13 Dec., 1967 [21 Dec., 1966], No. 56679/67. Heading H3A. A stable frequency generator comprises a plurality of signal sources 11-14 the outputs of which are fed to respective resistances 31-34 to provide an average output across resistance 37 from which the final output at terminal 43 is derived and which provides the reference signal for phase detectors 51 associated with each source, the output of each phase detector controlling the frequency or phase of the associated source. The phase detector 51 maycomprise a pair of differential amplifiers (54 and 58, Fig. 2, not shown) supplied respectively with the two frequencies to be compared and both supplied with a quadrature signal from the associated signal source, the outputs of the amplifiers feeding detectors coupled to each end of resistance 63. In Fig. 1, the switches 101 and 102 are in a position such that the resistances 63 associated with atomic frequency sources 11 and 12 are coupled to an averaging network 109 so that an average phase-error signal is developed. The corresponding switch 103 of the crystal source 13 connects the resistance 63 of the phase detector to a second averaging network 110, and the switch 104 of source 14 earths the resistance 63. With the switch 69 as shown the output of a phase detector controls the frequency of its associated source, e.g. by controlling the magnetic field of an atomic frequency source; with the switch 69 in its other position the phase error signal controls a servomotor (84, Fig. 3, not shown), driving a potentiometer (88) arranged to act as a phaseshift device. Each frequency source is monitored by an amplitude detector 120, an error signal amplitude detector 121, a frequency detector 119, and a 180 degree phase error detector 122. If any of these indicates a fault, the logic circuit 130 causes the relays 139-141 to become de-energized. Relay 139 then disconnects the source from the output averaging means 36, relay 140 disconnects the phase detector 51 from the phase error averaging means 109 or 110, and relay 141 energizes an alarm circuit 151. If the fault ceases the relays are re-energized and normal operation is resumed.
Patent GB-1353290-A (GB)
Title: Aerial arrangements
IPC: H01Q19/13
Filed: 1972-12-08
Abstract: 1353290 Aerials LICENTIA PATENTVERWALTUNGS-GmbH 8 Dec 1972 [14 Dec 1971] 56768/72 Heading H4A A feed for a parabolic reflector comprises a waveguide 1 of diameter c with an end aperture 2 covered by a dielectric hood 9. A metal ring 3 is disposed on the end of the waveguide 1 and has a conical surface 4 facing the reflector, with an included angle of 120 Œ 30 degrees. A series of concentric slots 5, 6, 7, 8 are provided on said surface, whose depths decrease towards the outer edge thereof. Such decrease may be in accordance with a quadratic function. The width of the slots may be between #/10 and #/20, the spacing between successive slots between #/4 and #/8, and the diameter of the ring 3#, where # is the wavelength at the mean working frequency. The arrangement is stated to promote equality of beam widths in the E and H planes, with improved matching and lower side lobes, over a wide frequency band.
Patent GB-1403920-A (GB)
Title: Lock cylinders
IPC: E05B17/04
Filed: 1972-12-13
Abstract: 1403920 Locks YMOS-METALLWERKE WOLF & BEGKER GmbH & CO 13 Dec 1972 [28 Dec 1971] 57630/72 Heading E2A A lock cylinder 20 is rotatably mounted in a bush 23 and has at its end remote from the keyhole a peripheral groove 19 to engage a securing ring formed by radial noses 17 of resilient material on a drive member 18 mounted on the lock cylinder so that withdrawal of the lock cylinder from the bush is prevented.
Patent GB-1156720-A (GB)
Title: Latch for a Door or Other Hinged Member.
Inventor: SMITH HARRY
IPC: E05C1/12
Filed: 1966-12-30
Abstract: 1,156,720. Latch fastenings. COACH FITTINGS DEVELOPMENT Ltd. 1 April, 1968 [30 Dec., 1966], No. 58316/66. Heading E2A. A latch for a door or other hinged member comprising a spring loaded bolt 2 mounted to slide in a casing 1 that is designed to be secured to the door or other hinged member, the bolt being withdrawn against the spring loading by a member 6 turning about an axis perpendicular to the direction of sliding, distinguished by the feature that the rotatable member forms a cover closing an opening in the casing of the latch. In the construction shown the cover 6 is angularly movable by means of a handle 10 secured to the cover by a screw 11. The cover has two pins 12, 13 projecting from the inside face, one of these pins 12 engages a lug 14 of the bolt 2 so that movement of the cover by means of a handle withdraws the bolt; the other pin 13 is roughly diametrically opposite to it and is engaged by one arm 15 of a bell-crank lever 16 which is pivotally mounted on the outside of the back of the casing with the arm 15 projecting through an aperture in the casing; the other arm of the bell crank lever is connected to a handle 18 on the outside of the door pivoted to the door by a fulcrum 19 and carrying an intermediate fulcrum 20 joined by a tension rod 21 to the second arm of the bell crank lever; the length of the rod is adjustable by screwing it further into or out of one of the clevises at its ends and the springs 22 prevents rattle. Pulling on the outside handle 18 turns the bell crank lever 16 and its arm 15 engages the other pin 13 on the cover to rotate the cover and hence withdraw the bolt. The door is lockable from the inside to but the outside handle 18 out of action by means of a block 23 slidable radially in the casing and moved by means of a manually operable pin 24 projecting through the peripheral wall of the casing; when the block is in its inward position the nose 25 on it lies in the path of the arm 15 of the lever 16 and prevents the lever being turned. The block is cut away to define a ramp 26 and when the block is in its inward position the ramp lies against the pin 13 so that when the inside handle 10 is operated to turn the cover 6 the pin 13 engages the ramp 26 and pushes the block 23 outwardly so that the bolt can be retracted. Instead of providing the cover with a handle it can be operated remoately through a link from a remote handle or from the handle 10 of a similar latch.
Patent GB-1216480-A (GB)
Title: Process for the separation of mixtures of phosphoric and nitric acid and products obtained thereby
IPC: C05B7/00
Filed: 1967-12-28
Abstract: 1,216,480. Ammonium phosphate and nitrate. ENTREPRISE MINIERE ET CHIMIQUE EX OFFICE NATIONAL INDUSTRIEL DE L'AZOTE. 28 Dec., 1967 [26 Jan., 1967; 17 Aug., 1967], No. 58927/67. Heading C1A. An aqueous mixture of H 3 PO 4  and HNO 3 , obtained e.g. by treatment of phosphate ore with HNO 3  followed by separation of the Ca salt, is extracted with an alcohol containing 4-8 carbon atoms, the water concentration of the alcoholic extract is adjusted if necessary to 8À5-12% by wt., and ammonia is then added to the extract to precipitate ammonium phosphate. NH 4 H 2 P0 4 , (NH 4 ) 2 HP0 4 , or a mixture, is obtained if NH 3  is added until the pH is 3À0-5À5, 7À5-8À5, or 5À5-7À5 resp. The alcohol may be 2-ethyl 1-butyl alcohol, isobutanol, isoamyl alcohol, or C5 oxo synthesis alcohols (n-amyl, active amyl and isoamyl alcohols). 3 phases are obtained: a ppt. of ammonium phosphate, an aqueous solution containing a little NH ; phosphate and part of the NH 4 NO 3 , and an alcoholic solution containing the remaining NH 4 NO 3 . In Fig. 1 and Ex.1, mother liquor 1 from the attack of phosphate ore with HNO 3  is cooled to 10‹ C. to crystallize out Ca(NO 3 ) 2 .4H 2 O and extracted in countercurrent at 2 with alcohol 3. The extract is purified at 5 and part is further extracted with water at 8, aqueous solution 11 being fed back to 5. Alcohol 10, free of H 3 P0 4  is recycled to 2. Remaining extract 12 is treated with NH 3  gas in tank 13. Solid ammonium phosphate 17 is filtered off and the alcoholic phase is washed with water in 19. Alcohol 20 is recycled to 2 and aqueous solutions 21 and 22 are combined and evaporated. In Fig. 2 (not shown) and Ex. 2, the mother liquor is cooled further to - 100 C. to remove more Ca(N0 3 ) 2  and the whole of alcoholic extract 6 is treated with NH 3 . In Fig. 3 (not shown) and Ex. 3, alcoholic extract 4 is passed directly for NH 3  treatment.
Patent GB-1427934-A (GB)
Title: Gas flow control valves
IPC: F16K11/20
Filed: 1972-12-21
Abstract: 1427934 Valves BOC INTERNATIONAL Ltd 11 March 1974 [21 Dec 1972] 59056/72 Heading F2V A gas flow control valve for a gas-burning torch or like appliance, comprises a body 2 defining a chamber 10 having two independently-adjustable valve members 16, 22 controlling flow between an inlet 4 and two outlets 6, 8. Control rod 20 of valve member 22 passes through the valve member 16 to facilitate adjustment of both valve members from the same position externally of the body. The valve member 16 is screwed into the body and is adjustable via a knurled knob 18, whereas the valve member 22 is adjustable by depressing the control rod 20 via a lever (not shown). In an alternative embodiment the valve 22 is biased by a spring towards its open position and is closed by depression of rod 20. When the valve is used in a cutting torch, oxygen supplied via inlet 4 and directed through outlet 6 mixes with fuel for providing a preheating flame at the torch nozzle, whereas oxygen directed through outlet 8 is delivered through an aperture in the centre of the nozzle to effect cutting.
Patent GB-1451243-A (GB)
Title: Stylus assemblies
IPC: H04N1/14
Filed: 1973-12-21
Abstract: 1451243 Selective printing MUIRHEAD Inc 21 Dec 1973 [5 Feb 1973] 59547/73 Heading B6F [Also in Division H4] A stylus assembly, for use in a facsimile recorder having a toothed belt to which the assembly is attached, includes a body having flanged ends which are apertured. The stylus 9 passes through one of these flanges and is kept aligned with both apertures by member 37. A ring 31 provides an abutment to limit outward movement of the stylus and spring 27 urges the stylus upwards (as viewed). Member 38 is for engaging a ramp on the recorder which thus compresses the spring 27 and forces the stylus upwards. The ramp is located only in the printing position. In Fig. 6 the stylus lies within pin 24 which passes with it through the flanged ends of the body. A pivotable ramp engaging member 52 is used. Spring 42 provides the same function as spring 27. The recorder embodying such an assembly is the subject of Specification 1,451,241 and the attachment of the assembly to the toothed belt is the subject of Specification 1,451,242.
Patent GB-1396028-A (GB)
Title: Method and apparatus for shoring the walls of open trenches or excavations
IPC: E02D17/08
Filed: 1972-12-28
Abstract: 1396028 Shores for trenches K MARX and Z SANDBRANDNISIPEANU 28 Dec 1972 [7 March 1972] 59806/72 Heading E1E A shore for a trench comprises an adjustable framework 1, 1a, 2, 3, 4 having on each of the outermost faces thereof an inflatable envelope adapted to accommodate itself to the contours of the associated wall of the trench. The sides 2 of the framework constitutes a grid structure and the envelope 5, which may be transparent, is subdivided by cross-pieces 5b to define a series of chambers 5a interconnected pneumatically to one another. The walls of the trench may also be sprayed with a stabilizing means such as bitumen emulsion or cement and may also be covered with a foil applied thereto by spring-loaded rollers for details of which, Fig. 3 (not shown), should be referred to.
Patent GB-1377609-A (GB)
Title: 3alpha-hydroxy-5alpha-pregnane compounds
IPC: A61K/
Filed: 1970-12-17
Abstract: 1377609 3α - Hydroxy - 5α - pregnanecompounds GLAXO LABORATORIES Ltd 16 Dec 1971 [17 Dec 1970] 60066/70 Heading C2U [Also in Division A5] Novel 5α-pregnanes possessing a 3α-hydroxy group, a 10-hydrogen atom or methyl group, an 11-oxo group, a 17α-hydrogen atom, a 20-oxo group and at the 21-position a chlorine or iodine atom or a group -XR where XR is O.COR, O.CO.OR, O.CO.SR or O.CO.NHR and R is a nitrobenzyl group, a C 1-6  alkyl group when X is not O.CO, a halogenoalkyl group or a hydrocarbon group substituted by an amino group or a nitrogen-containing heterocyclic group are prepared (a) when the 21-substituent is to be -XR, (i) by esterification of the corresponding 21-ols or steroids possessing a readily eliminatable 21- substituent, with possible protection of the 3α-hydroxy group, e.g. as the nitrate ester, (ii) when R is to be an amino alkyl group, by reacting a corresponding 21-alkanoyloxy steroid containing a readily eliminatable substituent with an appropriate amine, (iii) when R is to be an iodoalkyl group, by reacting a corresponding chloralkyl compound with an iodide, (iv) when R is to be an aryl or aralkyl group substituted by an NH 2  group, by reduction of a corresponding nitro-aryl or -aralkyl compound, (v) when X is to be -OCOS or -OCONH, by reacting a corresponding 21-ol with a carbonyl halide in the presence of an acid binding agent and reacting the product with a thiol RSH or an amine RNH 2 , with intermediate 3-ol protection, or (vi) by stereospecific reduction of the corresponding 3-ones; and (b) when the 21-substituent is to be a Cl or I atom, by reacting a corresponding 21-ol or 21-Br compound with an alkali metal iodide and, when required, reacting the 21-I steroid thus formed with an alkali metal chloride. In process (i) a free NH 2  group may be protected, e.g. as a benzyloxycarbonyl derivative, and subsequently released. Products may be converted into acid-addition salts.  21-Bromo-steroid starting materials are prepared by bromination of the corresponding 21- unsubstituted steroids. 21 - Hydroxy - 3α - nitro - oxy - 5α - pregnane- 11,20-dione is prepared by hydrolysis of the corresponding 21-acetoxy compound, in turn prepared from the free 3α-ol and fuming nitric acid. 21-Hydroxy-2#-methoxy-3α-nitro-oxy-5α- pregnane-11,20-dione is prepared by hydrolysis of the corresponding 21-acetoxy compound, in turn prepared from the 21-bromo compound (prepared by nitration of the free 3α-ol) and potassium acetate. 3α-Hydroxy-2#-methoxy-5α-pregnane-11,20-dione is prepared from 2α,3α-epoxy- 5α-pregnane-11,20-dione and methanol. The novel steroids are anaesthetics, hypnotics and sedatives and they may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-1333015-A (GB)
Title: Process for the production of isocyanates
IPC: B01J31/18
Filed: 1971-12-29
Abstract: 1333015 Production of isocyanates SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 29 Dec 1971 [31 Dec 1970] 60311/71 Heading C2C [Also in Division B1] Aromatic polyisocyanates are produced from the corresponding ,poly nitro compounds in one step by a process which comprises contacting the polynitro compounds. with carbon monoxide at elevated temperature and pressure in the presence of one or more halides of palladium and/or rhodium, one or more heteroaromatic nitrogen bases and one or more molybdates of iron and/or manganese. Preferably the molar ratio of carbon monoxide to nitro groups is in the range of from 3:1 to 100 : 1. Examples of the halides employed. in the process are palladium dichloride, dibromide or di-iodide or rhodium trichloride, tribromide or tri-iodide. Examples of the heteroaromatic nitrogen compound are pyrrole, imidazole, pyrazole, indole, pyridine, pyrazine and pyradazine and also polycyclic analogues of these compounds. The reaction may be carried out at from 100‹ to 300‹ C. at a pressure of 35 to 350 atm. abs. If desired the reaction may be operated in the presence of a solvent, e.g. liquid aromatic hydrocarbons or aryl halides.
Patent GB-1422115-A (GB)
Title: Refractory materials
IPC: C04B35/01
Filed: 1971-12-29
Abstract: 1422115 Refractory compositions STEETLEY (MFG) Ltd 16 Jan 1973 [29 Dec 1971] 60478/71 Heading C1J A composition comprises refractory grain with tar, pitch or other carbonaceous material or mixture and one or more zeolitic molecular sieves. Specified grain are magnesia, lime, dolomite or mixtures (all dead burnt) zirconia, and zircon. Viscosity increasers, e.g. aromatic sulphonyl halides and nitro compounds KMuO 4 , nitrogen oxides and sulphur can also be present.
Patent GB-1284308-A (GB)
Title: A suspended ceiling
Inventor: PICATOSTE JOSE LLEDO
IPC: E04B9/28
Filed: 1969-12-15
Abstract: 1284308 Suspended ceilings J L PICATOSTE 15 Dec 1969 [14 Dec 1968] 61102/69 Heading E1W A suspended ceiling comprises panels 5 formed from flat sheet with two opposite edge portions turned up and each carrying a lug 10, a plurality of joists 6 suspended from the building structure by rods 1 and turnbuckles 2, and spacing means 3 extending between adjacent joists, each joist having an upper horizontal flange 7 substantially vertically disposed above a lower horizontal flange 11 and connected thereto by a web 9 which extends upwardly from a zone between the edges of the flange 11, through a laterally deflected upper web portion 9" to a zone at an edge of the upper flange 8, the lugs 10 resting on the lower flanges and a turned up edge portion 12 of each panel defining an inclined step normally engaging underneath the full width of the lower flange. A second upper flange 8 may be provided which defines with the flange 7 an upwardly open cavity for reception of a foot 2 on the turnbuckle or rod.