baber/WOPTO huggingface dataset:
Patent GB-203508-A (GB)
Title: Improvements in and relating to set screws for securing wheels, bosses, collars, and the like, upon shafts and the like
IPC: F16B35/00
Filed: 1922-08-24
Abstract: 203,508. Hindle, T. T., and Hindle, C. C. Aug. 24, 1922. Set-screws; locking set-sereucs.-A set-screw for use in securing wheels, bosses, collars, &c. on shafts &c. has a recess b<1> at the point band is provided with an annular series of saw-teeth which bite into the metal of the shaft and raise burrs in front of the cutting edges to lock the screw against backward rotation. The point b is of hardened steel and may be integral with the screw, welded thereto, or carried on a square, polygonal &c. shank b<2> which fits into a corresponding hole in the body of the screw as shown in Fig. 3. In a grub-screw, the hole may be carried right through the shank to facilitate the insertion of a key at the other end. Alternatively, a grubscrew having an integral point may be provided with a recess for a key &c. at the opposite end. Specification 6146/12 is referred to.
Patent GB-701945-A (GB)
Title: Method for the production of frostproof moulded building elements
IPC: C04B38/06
Filed: 1951-10-03
Abstract: Frostproof building units are made from a mixture of diatomite and clay together with brown coal, cork, sawdust, or other combustible material, the mixture being vibrated before or during the moulding process.  The moulded units are dried and fired to leave pores in the finished unit.  A Danish type of diatomite, known as "moler" is preferably used.  The moler may contain sufficient clay as found or further clay may be added.  Water, which may be half-saturated with Ca (OH)2, is sprayed on to the comminuted moler as it drops from a conveyer into the mould. The temperature of the mixture may be raised to about 70 DEG F. before or during the vibration period.  Pressure may be applied as the mixture is vibrated.  The finished units may be impregnated or glazed.  They may contain reinforcement.ALSO:Frostproof building units are made from a mixture of diatomite and clay, together with brown coal, cork, sawdust or other combustible material, the material being vibrated before or during the moulding process.  The moulded units are dried and fired to leave pores in the finished unit.  A Danish type of diatomite, known as "moler," is preferably used.  The moler may contain, as found, sufficient clay, or further clay may be added.  Water, which may be half-saturated with Ca(OH)2, is sprayed on to the comminuted moler as it drops from a conveyer into the mould. The temperature of the mixture may be raised to about 70 DEG F. before or during the vibration period.  Pressure may be applied as the mixture is vibrated.  The finished units may be impregnated or glazed.  They may contain reinforcements.
Patent GB-1293504-A (GB)
Title: Door closer connecting means
Inventor: JENTSCH DIETRICH
IPC: E05F3/00
Filed: 1971-04-19
Abstract: 1293504 Mounting levers on shafts DORKEN & MANKEL KG 19 April 1971 [18 March 1970] 23027/71 Heading F2U [Also in Division E2] A door closer mounted above the door has its shaft 16 connected to an arm adjustably mounted on the top of the door, by means of a bridge 28 which, in conjunction with the end of the arm nearest the hinge side of the door, clamps the shaft 16, the screws 29, attaching the bridge 28 to the arm, passing through fitting sleeves which engage both the bridge and the arm and protect the screws from transverse forces.
Patent GB-816141-A (GB)
Title: Improvements in or relating to particulate magnetizable material and method of producing same
IPC: C22C38/06
Filed: 1955-08-10
Abstract: A magnetic clutch or like apparatus utilizes a magnetizable powder of hard non-cohering stable particles, preferably of mesh 230-75, made of ferromagnetic material, such as carbonyl iron or stainless steel, alloyed with aluminium either throughout or at the surface, in the proportions by weight of 85 per cent-90 per cent of ferromagnetic material to 15 per cent-10 per cent of aluminium.  To make a suitable powder iron and aluminium particles mixed in weight proportions of 85 per cent to 15 per cent are heated under 1 micron vacuum at 1600 DEG F. and ballmilled. Alternatively an Fe, Al mixture is poured molten through a perforated rotating disc to be cooled by a water spray. With any Fe Al alloy as starting material, a rod may be heated by a gas torch or induction furnace, atomized by a stream of gas and projected into a water spray; a billet may be disintegrated by knife or emery grinders; or evaporated in an evacuated sphere by passage of electric current, the evaporated metal cooling on the surface of the sphere.
Patent GB-249025-A (GB)
Title: An improved mechanical advertising and displaying apparatus
IPC: G09F19/12
Filed: 1925-09-16
Abstract: 249,025. Anderson & Sons, Ltd., R., and Young, E. T. Sept. 16, 1925. Models with characteristic movements.- Apparatus for displaying sports balls, golf clubs, hockey sticks, &c. comprises a club &c. 9 which strikes a ball 8 along a surface 6 till it drops through an orifice, and, running back down a chute, is returned to a position in front of the club 9 for repetition of the process. The club &c. 9 is pivoted to a post 11 and has an extension 29 acted upon by a spring 31 and controlled by a constantly rotating cam 28 which withdraws the club, holds it back, and then allows the spring 31 to move it forward suddenly to strike the ball. The ball 8, after drop ing through the orifice in the surface 6, returns by the chute 14 and lands on a lifting lever 17 at the bottom of a slotted cylindrical guide 21. A pin 27 on the cam 28 actuates the lever 17 to raise the ball 8 to the top of the guide 21, where a cut-away edge allows the ball to roll down a guideway to a recess in front of the club.
Patent GB-1078097-A (GB)
Title: Process for preparing a detergent
Filed: 1966-05-24
Abstract: Process for the preparation of a detergent comprises reacting a gaseous stream containing an inert gas and SO3 with an olefin, preferably an alpha-olefin containing 2 to 40 carbon atoms, the ratio of SO3 to olefin being from 0.92 mol to 1 mole, and thereafter reacting said sulphonation product with at least the stoichiometric amount of a basic reagent to obtain the corresponding basic reaction product of the said sulphonation product.  Many examples of organic and inorganic bases are given. The usual builders added to detergents can be included as well as dyes, perfumes and tarnish inhibitors.ALSO:A detergent is prepared by bringing together a gaseous stream containing an inert gas and SO3 with a C2- 40 olefin, the molar ratio of SO3 to olefin being maintained within a range of 0.92 to one mole of SO3 per mol of olefin and the volume per cent of SO3 in the gaseous stream being within the range of 1 to 20, at a temperature of 0 DEG  to 100 DEG  C., and thereafter reacting the sulphonation product with at least the stoichiometric amount of a basic reagent, to obtain the corresponding basic reaction product of the sulphonation product. In the sulphonation process a mixture of alkene-sulphonic acids and a sultone is believed to be formed initially and the sultone reacts with the basic reagent to give a hydroxy alkane sulphonate. The sulphonation product is finally dried to obtain the aforesaid detergent.  The olefins used are preferably alpha-olefins having 10 to 22 carbon atoms and many are specified including cycloaliphatic olefins.  Basic reagents include organic bases such as salts of carboxylic acids, metal salts of hydrocarbons, imines, amines, aminoalcohols, quaternary ammonium hydroxides, salts of alcohols, salts of amines, salts of imines, salts of imides and salts of amides, and inorganic bases such as ammonia, hydroxides of alkali and alkaline earth metals, carbonates and bicarbonates of alkali metals sodamide and hydroxylamine.  Many examples of each type are given.
Patent GB-591547-A (GB)
Title: Dealkylation of alkylphenols
IPC: C07C37/50
Filed: 1944-11-23
Abstract: An alkyl phenol having an alkyl substituent containing at least four carbon atoms is dealkylated by heating with a catalyst containing: tetraphosphoric acid, i.e. concentrated orthophosphoric acid with about 82-84 per cent P2O5 content; mixtures thereof with simple phenols such as phenol, cresols or xylenols; glacial metaphosphoric acid or mixtures thereof with phosphorus pentoxide or simple phenols, or both; or mixtures of triaryl phosphates, e.g. tricresyl phosphate, with phosphorus pentoxide.  The said alkyl substituent is split off as olefin without removal of any methyl, ethyl or propyl groups present.  The amount of catalyst is generally 0.5-10 per cent by weight of the alkyl phenol, and temperature 170-270 DEG  C.  Excess pressures of, for example, 10-15 p.s.i. may be used.  Partial or complete dealkylation, for example of a dialkyl phenol to a monoalkyl or to the phenol itself, may be effected. Tetraphosphoric acid alone, which requires a brief induction period, or admixed with phenols is the preferred catalyst.  With amounts of 0.5-2 per cent at about 220-250 DEG  C., 83-85 per cent yields of olefins may be obtained in 2-3 hrs.  The acid may be stirred with the phenol in proportions of 2 : 1 to 1 : 1 by weight at 120-150 DEG  C. until solution is effected, this solution then being dissolved in the alkyl phenol.  Results are given of the dealkylation of di-tert.-butyl-m- and p-cresols, and tri - tert. - butyl - phenol using the said catalysts at various temperatures and concentrations.
Patent GB-893878-A (GB)
Title: Improvements in or relating to power transistors
IPC: H01L29/00
Filed: 1958-07-21
Abstract: 893,878. Transistors. SIEMENS-SCHUCKERTWERKE A.G. July 21, 1958 [July 23, 1957], No. 23396/58. Class 37. In a power transistor capable of operation at the voltage of public supply systems comprising a monocrystalline semi-conductor element consisting of two highly-doped regions of one conductivity type separated by step junctions from an intermediate less highly-doped base region of the opposite conductivity type of thickness W cm. and resistivity p ohm cm., the factor #/W has a value between one-half and twice W 1 #ohms, where #o=8.86.10<-14> A.Secs./ #0#Á . Ek V cm., # is the dielectric constant of the base region material, Á the mobility in cm.<2>/V.Sec. of majority carriers in the base region and Ek the critical electric field strength in Volts/em. of the base region material. Suitable values for #/W for silicon NPN transistors are 5000 to 20,000 ohms, for silicon PNP transistors 1500 to 6000 ohms. for germanium PNP transistors 500 to 2000 ohms, and for germanium NPN transistors 1250 to 5000 ohms. A typical transistor (Fig. 1) is made by alloying antimony doped gold to one face of a P-type silicon disc B to form a collector C and antimony doped gold and an annular aluminium or aluminium alloy member to the opposite face of the disc to form emitter E and base contact A respectively. The criteria for #/W set forth above correspond to the requirement W that avalanche breakdown of the collector junction and punch through between emitter and collector occur at about the same voltage.
Patent GB-719628-A (GB)
Title: Improvements in or relating to sparking plug assemblies
Inventor: HERBERT JOHN MARTIN
IPC: H01T13/52
Filed: 1951-10-09
Abstract: A sparking plug assembly comprises a block of ceramic composition consisting substantially wholly of a fired and compacted mixture of zinc oxide with not more than 20 per cent. of one or more oxides of the metals of Groups Ib, IVb, Vb, VIIa or VIII of the Periodic Table, the block having electrodes secured thereto with a gap on the block between the electrodes.  Oxides specified are manganese, iron, cobalt, nickel, copper, tin, antimony, lead and bismuth.  The oxides are mixed together with an organic dispersant, e.g. an aqueous solution of gum arabic, dried, screened, pressed to shape and sintered, or preferably-to reduce shrinkage on sintering -are, after being shaped prefired at 50 DEG -150 DEG  C. below sintering temperature, ground, mixed with an organic binder, e.g. butyl methacrylate, pressed to shape and sintered.  Specification 700,756 is referred to.  The Provisional Specification refers to the addition of up to 70 per cent. of the oxide other than that of zinc.
Patent GB-1271085-A (GB)
Title: Weighing apparatus
Inventor: WEBB GEORGE ALBERT EDWARD
IPC: G01G3/02
Filed: 1968-05-17
Abstract: 1,271,085. Screw conveyer. AUTOPACK Ltd. 23 July, 1969 [17 May, 1968], No. 23541/68. Heading B8A. [Also in Division G1] Articles to be weighed are sequentially fed by a screw 18 (Fig. 1) to a rotating table 10 and each located on one of a series of weighing platforms 17 (Fig. 2) so that it displaces the movable electrode 22 of a variable capacitor, whose capacitance is converted to a D.C. voltage for charging a corresponding series of memory capacitors.
Patent GB-155394-A (GB)
Title: Improvements in or relating to diamond tools
IPC: B24B53/12
Filed: 1919-09-26
Abstract: 155,394. Leggett, W. H., and Dodwell, J., (trading as Carbon Tool Co.). Sept. 26, 1919. Diamond tools.-Consists in providing diamond tools with means for protecting the diamond. A split spring sleeve c, preferably provided with a pad of comparatively soft material d, covers the end of the tool when not in use. When using the diamond, the sleeve may be placed on the other end of the tool. The motion of the sleeve may be limited by a collar within the sleeve, or upon the tool. The sleeve may be open-ended and provided with a bayonet or other pin-and-slot connexion. The diamond a may be mounted on a reversible plug i screwed into the end of the tool b. The plug may be plain or conical and secured by a grub screw. In the construction shown in Fig. 10, the tool holder b telescopes by screwing within a sleeve m which may be externally milled, or made of polygonal cross-section.
Patent GB-1222343-A (GB)
Title: Process for the production of pure malonic acid dinitrile
Inventor: ARNI URS
IPC: C07C/
Filed: 1969-05-09
Abstract: 1,222,343. Malonic acid dinitrile. LONZA Ltd. 9 May, 1969 [9 May, 1968; 18 June, 1968; 24 June, 1968], No. 23712/69. Heading C2C. Malonic acid dinitrile is produced by reacting acetonitrile with cyanogen chloride at 740 to 780 C. and immediately cooling the reaction product to 20 to 50 C., maleic and fumaric acid dinitriles contaminating the reaction product being removed therefrom either by reacting them with a compound having at least two conjugated double bonds to give corresponding Diels-Alder adducts, which are separated, or by catalytically hydrogenating them to give succinic acid dinitrile, which is separated by fractionation.
Patent GB-457405-A (GB)
Title: Improvements in waste heat thimble tube boilers and water heaters
IPC: F23M9/08
Filed: 1935-08-24
Abstract: 457,405. Water-tube steam boilers. SPANNER, E. F., 13, Shooters Hill Road, Blackheath, London. Aug. 24, 1935, No. 23736. [Class 123 (ii)] In waste heat thimble tube boilers or water heaters having an annula: tube nest around a cylin drical centre space obstructed by a cylin drical baffle, a spiral de flector or other means plain spiral or stepped spiral divisional plates A B extend inwards from the tube plate to the boundary of the centre space to increase the length of path of the heating gases.
Patent GB-602241-A (GB)
Title: Improvements in and relating to apparatus suitable for treating clothes or the like in a dry cleaning operation
IPC: D06F43/02
Filed: 1944-11-28
Abstract: <PICT:0602241/III/1> <PICT:0602241/III/2> Dry-cleaning apparatus for treating clothes or like materials with a volatile solvent such as trichlorethylene and then centrifuging and drying comprises a stationary casing in which is mounted (a) a rotatable perforated casing divided into three compartments, the central compartment having about twice the capacity of each of the two end compartments or (b) three rotatable perforated casings mounted on the same axis, the central casing having about twice the capacity of each of the two end casings.  The three compartments of the rotatable casing or the three rotatable casings contain clamping devices for holding the dry cleaned materials in position during centrifuging, the clamping device in the central compartment or casing being located at a diametrically opposite position on the inner peripheral wall of the casing to the clamping devices in the two end compartments or casings.  In Fig. 4, the inner rotatable perforated casing a is divided into three compartments by means of perforated partitions a1, and each compartment is provided with a clamping device h hinged to the inner periphery of the casing.  In Fig. 2, the rotatable casing a is mounted in a stationary casing e.  Air can be blown through pipes g and perforated grid plates c4 and leaves the apparatus through off-take pipe h1.  An outlet for solvent is provided at j.
Patent GB-1082501-A (GB)
Title: Improvements in or relating to a vehicle heating system
Inventor: TODD ERIC ANTHONY
IPC: B60H1/00
Filed: 1965-06-04
Abstract: 1,082,501. Heating vehicles; engine cooling systems. L. GARDNER & SONS Ltd. May 4, 1966 [June 4, 1965], No. 23880/65. Heading F4U. A vehicle heating system comprises three parallel circuits for engine coolant, namely a radiator circuit RC, a radiator by-pass circuit BC and a heating circuit HC, and temperatureresponsive valve means 7 common to all three circuits. At low temperatures valves 8 and 9 close outlets 12, 13 to circuits RC and HC and coolant flows through outlet 11 to circuit BC. As the coolant temperature rises valve 9 gradually closes outlet 11 while opening outlet 13 so that eventually all the coolant flows to circuit HC. If the temperature continues to rise valve 8 gradually opens outlet 12 while closing a port 15 communicating with valve 9 so that eventually all the coolant flows through circuit RC. Circuit HC comprises a ring pipe sized to accept the full coolant flow and cookcontrolled heating units 16 connected in parallel across the pipe.
Patent GB-1378327-A (GB)
Title: Iii-v compound on insulating substrate
IPC: H01L21/86
Filed: 1972-05-22
Abstract: 1378327 Epitaxial growth on substrate RCA CORPORATION 22 May 1972 [27 Aug 1971] 23909/72 Heading B1S [Also in Divisions Cl C4 and H1] A semiconductor structure comprises a monocrystalline insulating substrate 41, Fig. 3, having a semiconductor layer thereon, the layer consisting of a first, vapour phase deposited portion 42 of a III-V compound, and a second portion 43, also of a III-V compound and formed in continuity with portion 42, but derived from a liquid phase process. The portions may be of the same or different material, and of the same or opposite conductivity type. The portions may be of GaAs or GaAs, or GaAs x P 1-x  or Ga x Al 1-x As on GaAs, GaP on GaP, or GaAs x P 1-x  on GaP where o<x <1. The first portion surface may be partially dissolved prior to the liquid phase process.
Patent GB-814925-A (GB)
Title: Cooling bed
Inventor: MORGAN MYLES
IPC: B21B43/02
Filed: 1957-07-29
Abstract: 814,925. Cooling beds. MORGAN CONSTRUCTION CO. July 29, 1957, No. 23910/57. Class 83 (4). [Also in Group XXX] A cooling bed 10, Fig. 1, having a series of bars 21, 22 for moving rolled products laterally has an aligning roll 30, associated with the bars and arranged at the same level, and includes means for driving the roll to move the products longitudinally and means to limit the longitudinal movement of the product. Stationary bars or racks 21 receive long lengths of rolled bar one at a time from a run-on table 11, the bars being kicked into the first notch by a mechanism 15. Racks 22 which are oscillated through tied connecting rods 23, 24 by crank-shafts 25, 26 driven from a shaft 27, lift and move the bars step-by-step across the cooling bed. When a bar is deposited in the first notch of the aligning roller 30, the roller rotated by a motor 48 through a gear reduction and belt drive moves the bar longitudinally until it strikes a stop member 55, Fig. 4, carried in a stationary rack 21a. The bar is then delivered to the second notch of the roller 30 and on to a series of shuffle bars 32 some of which are fixed while others are eccentrically operated and move the longitudinally aligned bars slowly towards the run-off table 12. When enough bars have accumulated against the side of rolls 18, a crank 35 operates to lift the end of the shuffle bars so that the bars proceed on to the rolls 18. The crank then lowers the shuffle bars and a group of rolled bars are moved by the rolls 18 with ends in correct alignment for cutting to length by a shear.
Patent GB-501660-A (GB)
Title: Improvements in or relating to trunk communication cables for multiple carrier frequency systems
IPC: H01B11/20
Filed: 1937-09-01
Abstract: 501,660. Cables. SIEMENS & HALSKE AKT.-GES. Sept. 1, 1937, No. 23916. Convention date, Aug. 25. [Class 39] [Also in Group XXXIX] A concentric conductor communication cable for multiple carrier frequency operation has the inner conductor formed as a star quad, the conductors of the quad being individually surrounded by insulation and the quad being separated from the outer concentric conductor by one or more additional spacers having a radial thickness greater than the thickness of the insulation on the individual quad conductors. Fig. 1 shows a communication cable system comprising a concentric cable having an outer tubular conductor 15 and an inner composite conductor consisting of conductor pairs 11, 12 and 13, 14 arranged in star quad formation. The pairs 11, 12 and 13, 14 are both used for speech transmission in one and the same direction, each pair transmitting a frequency band of about 15-60 k.c.s. Speech transmission in the opposite direction is effected over the concentric cable, the conductors 11-14 being used in parallel to form the central conductor. A frequency band of about 90-180 k.c.s. is used for this transmission. A low frequency one-way broadcasting channel is formed by the conductors 11-14 in phantom. The concentric conductor circuit is used for broadcasting transmission in the opposite direction, a frequency range of 65-85 k.c.s. being used for this purpose. The attenuation constants of the pairs and the concentric line are preferably equal. As shown in Fig. 3, the conductors 11-14 are each surrounded by air-space insulation and are air-spaced from the outer conductor 35, formed of stranded copper bands, by helical spacers 33. In a modified construction, Fig. 4, the outer conductor is formed of arcuatesectioned metal bands 40, 41, having inwardly directed corrugations 42 which space the outer conductor from the inner conductors 11-14. In another cable construction, more particularly for submarine use, the inner conductors are individually surrounded by rubber or like solid insulation and are spaced from the outer conductor by a sleeve of similar insulating-material. The elements of outer conductors are preferably stranded in the same direction and with the same length of lay as the inner conductors, and the armouring wires, when used are preferably stranded in the same direction but with a longer length of lay. The insulating-material in the vicinity of the conductors 11-14 may be of polystyrol or other high quality high frequency insulating- material, whilst poorer quality material, e.g. paper, or polyvinyl chloride may be used as the insulating material adjacent the outer conductor.
Patent GB-314267-A (GB)
Title: Improvements in and apparatus for carrying out photochemical reactions with dissolved reaction materials
IPC: B01J19/12
Filed: 1928-08-20
Abstract: 314,267. Johnson, J. Y., (1. G. Farbenindustrie Akt.-Ges.). Aug. 20, 1928. Radiations, treating substances with.-In carrying out photochemical reactions with dissolved reaction materials the solvent circulates in a continuous cycle, the reaction product is removed from it after it leaves the irradiation chamber and fresh reaction material is added. The illustrated apparatus is suitable for the irradiation of ergosterol. which is extracted with alcohol in the vessel E. The solution is irradiated in the chamber B and is then distilled in the vessel S where the irradiated product remains while the alcohol vapour is condensed at K and returned to the extraction vessel. Another example describes the conversion of cyclohexanone in aqueous solution into caproic acid.