baber/WOPTO huggingface dataset:
Patent GB-254179-A (GB)
Title: Improvements in or relating to apparatus for casting steel
IPC: B22D18/06
Filed: 1925-12-02
Abstract: 254,179. Larner, D. Dec. 2, 1925. Casting-machines; metal-pouring.-In casting steel the metal is delivered from the ladle 11 to a number of moulds 10 simultaneously while protected from air. The ladle 11 is jointed by an asbestos washer 16 to a vertical tube 14 having a number of radial communicating tubes 19 corresponding to the number of the moulds 10. The tubes are lined with brick 15 and the radial tubes carry covers 22 adapted to be jointed bv asbestos 23 to the moulds. The tubes and moulds are evacuated by fans 24 mounted on the covers 22 or by external means connected to the tubes 26 which are provided with dampers 27.
Patent GB-1171595-A (GB)
Title: Memory Selection System
IPC: G11C7/00
Filed: 1968-06-26
Abstract: 1,171,595. Magnetic storage apparatus. SPERRY RAND CORP. 26 June, 1968 [29 June, 1967], No. 30532/68. Heading H3B. In a transformer diode selection system for the addressing of memory elements the word and word driver lines are in the form of striplines. Figs. 1a, 1b show the selection system applied to a word-organized thin ferromagnetic film memory array 10, the word lines, e.g. 80 of which are divided into groups of sixteen and the word lines of each group are connected to a different one of the split divertor lines DL-1 to DL-16 as shown, the selection system being mounted on opposite sides of a printed circuit board. Each divertor line is connected via an isolation diode WD to a word line which is coupled to a high permeability core ST which is also coupled to a word driver line 86 and word driver WS-1 to WS-16. In operation all the divertor lines DL-1 &c. are coupled to a negative potential V1 through their associated current limiting resistors Rr so that all the word line isolation diodes WD are reverse biased. At the initiation of a memory cycle a selected divertor 82 is enabled to couple the associated divertor line to ground and hence place all the isolation diodes connected to that divertor line on the threshold of conduction. A selected word driver WS1- WS16 is then selected so that a negative current is coupled to the primary winding, i.e. word driver line 86 of the corresponding transformer ST. There is thus induced in the secondary winding, i.e. word line 80 a negative potential across the diode WD and an effective positive potential at the point on the word line to which is coupled resistor Rw equal to the characteristic impedance of the word line so that a positive word current pulse flows through the word line coupled to the thin film elements 12 is reflected back and absorbed by resistor Rw. At the same time as the selected word line is energized by the selection of one divertor and one word driver amplifier gates AG-1 to AG-68 are opened so that the output signals induced in the digit/sense conductors by the rotation of the magnetization vectors of the thin film by the word line pulse can be read. In order to turn off the read current the word driver is turned off, followed by turning off of divertor 82 after which the previously selected divertor line DL is discharged by enabling the line charger coupled to all the divertor lines through diodes CD. After the line charger has been turned off a write cycle is carried out by again selecting a particular word line and concurrently with the word current pulse enabling the digit drivers DD which couple a positive or negative pulse to the associated digit lines in accordance with the digit to be stored.
Patent GB-1078499-A (GB)
Title: Novel 10ª-methyl-9ª-steroids and a process for the manufacture thereof
Inventor: REERINK ENGBERT HARMEN
IPC: A61K31/573
Filed: 1965-07-19
Abstract: The invention comprises 3-keto-4-dehydro-, 3 - keto - 4,6 - bisdehydro -, 3 - keto - 1,4 - bisdehydro -, 3 - keto - 1,4,6 - tris - dehydro -, 3 - (etherified hydroxy) - 3,5 - bisdehydro - and 3-acyloxy-3,5-bisdehydro-derivatives of steroids of formula <FORM:1078499/C2/1> wherein Hal is a chlorine, bromine or fluorine atom, and their preparation by treatment of a corresponding 3-keto-D 16- or 3-keto-16a -hydroxy- or -acyloxy-steroid with a hydrogen halide, followed, if desired, by (a) 1- and/or 6-dehydrogenation and/or (b) enol etherification or esterification.  9b ,10a  - Pregna - 4,16 - diene - 3,20 - dione and 16a  - acetoxy - 9b ,10a  - pregna - 4,6 - diene - 3,20 - dione are prepared from the corresponding 16a -hydroxy-steroid by dehydration and acetylation, respectively.  The compounds of the invention have progestational activity and may be used in pharmaceutical compositions in combination with a carrier, for example in forms suitable for oral, parenteral or rectal administration.
Patent GB-602724-A (GB)
Title: Improvements in manufacturing sulphurous anhydride, alumina and cements starting from sulphate of calcium and materials containing alumina and silica
IPC: C01B17/50
Filed: 1939-11-22
Abstract: Material containing alumina (such as bauxites, clays, coal, shale, ashes, mining residues, metallurgical slags, &c.) is mixed with calcium sulphate in the form of gypsum or adhydrite and burnt, evolving sulphur dioxide and giving a residue which when leached with water or weak alkali lyes yields a solution of aluminate of lime from which alumina can be recovered, and a residue which may be mixed with limestone, and burnt again to give a clinker which when ground affords a cement.ALSO:Material containing alumina (such as bauxites, clays, coal shale, ashes, mining residues, metallurgical slags &c.) is mixed with calcium sulphate in the form of gypsum or anhydrite and burnt, evolving sulphur dioxide and giving a residue which when leached with water or weak alkaline lyes yields a solution of aluminate of lime from which alumina can be recovered, and a residue which may be mixed with limestone, and burnt again to give a clinker which when ground affords a cement.
Patent GB-962854-A (GB)
Title: Method for the production of methyl-or ethyl-2-methyl-5-cyano-6-pyridone-4-carboxylate
Filed: 1960-09-06
Abstract: Alkyl 2-methyl-5-cyano-6-pyridone-4-carboxylates are prepared by condensing an alkyl acetoacrylate with cyanoacetamide in an alkanol solution and in the presence of an organic base, e.g. piperidine or an alkali metal alcoholate.
Patent GB-1069007-A (GB)
Title: Improvements in and relating to seals for bearings
IPC: F16C33/78
Filed: 1964-08-04
Abstract: 1,069,007. Seals. H. ZILLER. Aug. 4, 1964 [July 23, 1963], No. 30638/64. Heading F2B. A seal for a ball or roller bearing comprises an annular housing formed by two or more annular parts 7, 8 and containing an elastic seal ring 6 and two or more concentric spacer rings 41, 42. The seal ring is of V- section and is clamped to the part 7 by a disc 43 and has a sealing lip 6a in contact with the part 8 which forms a narrow gap 44 with a further disc 45. In modifications (Figs. 2 and 5), the housing contains two radially spaced seal rings (6b, 6c) and two axially spaced seal rings (6d, 6c) respectively. In a further modification (Fig. 3), a grit-excluding 0-ring (42a) is located between the part 7 and ring (42) and in a still further modification (Fig. 4), the seal ring is protected against ingress of grit by grease packed in a space (48). In use, the housing 40 is fitted between the inner and outer bearing races.
Patent GB-1067341-A (GB)
Title: A process for stabilising formaldehyde polymers
IPC: C08K5/30
Filed: 1964-08-04
Abstract: Polymers and copolymers of formaldehyde are stabilized against heat and oxidation by incorporating therein a stabilizer comprising a semicarbazone of a substituted aromatic ketone or aldehyde having the general formula <FORM:1067341/C3/1> in which R is hydrogen, alkyl, cyclo-alkyl, aryl, aralkyl or a heterocyclic group and R1, R2, R3, R4 and R5 are R or OH, -OCH3, -NO2, or halogen, each of these groups being the same or different.  Specified semicarbazoles are those of 2,4 - resorcinaldehyde, 2,4 - dimethoxybenzaldehyde, salicylaldehyde, p-toluenebenzaldehyde, mesitaldehyde and phenyl n-butyl ketone. The polymer may be esterified or etherified while the stabilizer may be added to a polymer in powder, melt or solution form.
Patent GB-813428-A (GB)
Title: New pyrrolidine compounds and the production thereof
IPC: C07D209/52
Filed: 1956-10-10
Abstract: The invention comprises phenthiazines of the general formula: <FORM:0813428/IV (b)/1> and their acid addition and quaternary salts (X represents a hydrogen or chlorine atom, R represents a hydrogen atom or an alkyl, alkenyl or benzyl radical) and a process for their preparation by reacting phenthiazine or 2-chloro-phenthiazine with a reactive ester of 3-pyrrolidylmethanol (or an N-alkyl, alkenyl or benzyl derivative thereof), and if desired N-alkylating, alkenylating or benzylating the product and/or forming acid addition or quaternary salts, e.g. with hydrochloric, sulphuric, phosphoric, methane sulphonic, fumaric, maleic or citric acids, or with alkyl halogenides, sulphates or sulphonic acid alkyl esters, respectively. Specified reactive esters are those with hydrogen halides and with alkyl and aryl sulphonic acids, and the reaction is preferably performed in a solvent such as benzene, toluene or cumene in the presence of an alkali metalamide, hydride or hydroxide.  Specified groups denoted by R include benzyl, methyl, ethyl, propyl, butyl, amyl, hexyl, vinyl, allyl, propenyl, crotyl and butenyl.  In examples: (1) phenthiazine is reacted with sodamide in xylene and then boiled with 3-bromomethyl-1-ethyl pyrrolidine hydrobromide giving 10-[11-ethylpyrrolidyl - (31) - methyl] - phenthiazine, characterized as its hydrochloride and methosulphate; (2) as in (1), but using 3-chloromethyl-1-n-propyl pyrrolidine to give 10-[1-n-propylpyrrolidyl - (31) - methyl] - phenthiazine, its hydrochloride and methosulphate; (3), similarly are prepared the following 10-substituted phenthiazines: 1-methylpyrrolidyl-3-methyl -, 1 - isopropylpyrrolidyl - 3 - methyl -, 1 - allylpyrrolidyl - 3 - methyl -, 1 - n - butylpyrrolidyl - 3 - methyl -, and 1 - benzylpyrrolidyl-3-methyl- (as its HCl salt); (4) similarly from 2-chlorophenthiazine are prepared 10 - [pyrrolidyl - (31) - methyl] - 2 - chlorophenthiazines which are substituted on the pyrrolidyl N-atom by methyl, ethyl, n-propyl, isopropyl and n-butyl groups, together with corresponding HCl salts.  Specification 772,179 is referred to.
Patent GB-1269024-A (GB)
Title: Portable liquid heater
Inventor: ESCALDI SALVATORE
IPC: F24H1/18
Filed: 1970-06-25
Abstract: 1,269,024. Portable liquid heater. S. ESCALDI. 25 June, 1970 [27 Aug., 1969], No. 30942/70. Heading F4A. In a portable water heater the heating unit 14 and water tank 12 may be separated for transit by disconnecting flow connections 72 and 78. In use water is heated in coil 42 by solid fuel burnt on grate 70, the hot gases passing out through flue 64 around baffle 66. The heated water flows out through connection 72 into tank 12 and is replaced by cooler water from the tank through lower connection 78 and flap valve 94, Fig. 4. When tap 110 is opened the hotter water at the top of the tank is drawn off via the heating coil 42 and pipe 90 since the flow in pipe 90 is sufficient to pull the flap valve 94 closed.
Patent GB-1128990-A (GB)
Title: Stable superconducting magnet
IPC: H01F6/00
Filed: 1966-07-11
Abstract: 1,128,990. Superconducting coils. NORTH AMERICAN AVIATION Inc. 11 July, 1966 [26 July, 1965], No. 30997/66. Headings H1K and H1P. In order to avoid the necessity for "training" (i.e. the production of a series of superconducting/normal transitions) in a superconducting solenoid 2 when being energized while cooled to a low operating temperature (e.g. 4K.), a heating wire 8 of normal metal (e.g. copper or aluminium) is positioned between each coil layer of the solenoid so as to heat the adjacent parts of the solenoid to a temperature which is below the critical temperature for the material of the coil, but at which no superconducting/normal transistions occur (e.g. 5- 7K.). The solenoid is placed in a double-walled Dewar flask (Fig. 2, not shown) filled with liquid helium at a temperature of about 4À2K., and separate circuits are provided for energizing the magnet and for heating the wire 8. In an alternative embodiment the solenoid may be operated at the higher stable temperature by merely filling the flask with gaseous helium cooled to that temperature. The solenoid may be wound from copper-plated niobium-zirconium or niobium-titanium wire, preferably a 0À01 inch diameter 25% zirconium wire.
Patent GB-310216-A (GB)
Abstract: 310,216. M-L Magneto Syndicate, Ltd., and Watson, E. A. May 26, 1928. Systems electric.-In arranpemente for sending battery current into the primary winding of a magneto for facilitating starting, a condenser a or a resistance is placed in series in the primary circuit. The battery circuit includes either a self-inductance e with a switch g for cutting out the members e, a during normal running, or a transformer e, e\ Fig. 2, of which the primary e is interrupted periodically, while the impulses induced in the secondary e<1> are in circuit with the magneto primary b and condenser a. The condenser a is additional to the usual condenser d across the terminals of the interrupter c. The resistance which may be used instead of the condenser a may take the form of an incandescent lamp, serving also as an indicator, or of an iron wire coil having a high positive temperature resistance coefficient. A small resistance may be placed between the indicating lamp and the interrupter c since, if the contacts of the latter are closed when the engine stops, the battery would discharge without passing sufficient current through the lamp to make it glow.
Patent GB-970292-A (GB)
Title: Improvements relating to ball and socket joints
IPC: F16C11/06
Filed: 1961-08-29
Abstract: 970,292. Seals. V. LARGEN. Aug. 29, 1961 [Sept. 9, 1960], No. 31078/61. Heading F2B. [Also in Division E2] In a ball joint the clearance between the pin 2 and the socket 1 is sealed by a flexible disc 11 having its outer edge portion fixed to the outside of the socket and having a central opening through which the pin passes, the part of the disc adjacent the opening being deformed into a lip 7 which extends along the pin and the part of the disc between the outer edge portion and the lip extending across the clearance and being recessed within the mouth of the socket or within the confines of a ring 20 which clamps the outer edge portion to the socket. The disc may have an outer peripheral bead 9 and one or two inner beads 10 around the central opening, and may comprise one or a number of layers of material.
Patent GB-160152-A (GB)
Title: Improvements in or relating to the manufacture of nozzles for use in the production of artificial silk and other fibres by spinning
IPC: D01D4/02
Filed: 1920-11-03
Abstract: 160,152. Schwarzkopf, R. March 12, 1920, [Convention date]. Wire skeletons, embedding in glass.-The glass cylinders from which are cut the nozzles for spinning artificial silk, are made by introducing molten glass into the lower end of a mould in which is located a bundle of stretched wires. The glass may be poured in through a pipe D, Fig. 1, leading to the lower end of the mould C; or the mould may be provided with a pipe D, Fig. 2, descending into a pot B from which the molten glass is transferred to the mould by exhausting the latter. The wires H are attached to perforated plates E, one of which is embedded in the mould, and the wires are stretched by a weight W; and the mould may be heated by an electricresistance or gas furnace.
Patent GB-406809-A (GB)
Title: Improved means for supporting pottery-ware during firing operations
IPC: F27D5/00
Filed: 1932-11-05
Abstract: 406,809. Pottery. TERRY, C. E. R., Clement Street Works, Parade, Birmingham. Nov. 5, 1932, No. 31205. [Class 87 (i).] Pottery is supported during firing operations on refractory supports slidably mounted on an adjustable frame of a metal or alloy capable of withstanding high temperatures. The metal frame comprises a number of vertical stems a, on which the refractory pieces f for carrying the articles of pottery are supported, connected at top and bottom by a number of radially adjustable parts b, pivotally connected together at d that the frame may be adjusted for articles g of various sizes.
Patent GB-1535909-A (GB)
Title: Drill chucks
IPC: B23B31/12
Filed: 1977-07-26
Abstract: 1535909 Chucks G H ROHM 26 July 1977 [31 Aug 1976] 31266/77 Heading B3B A drill chuck comprises a clamping ring 15 rotatable to rotate via a clutch 14 an axially fixed clamping sleeve 9 which via screw-threads 8 axially moves a non-rotatable clamping zone 2 to cause the jaws 3 to move radially to clamp a drill shank, the clutch 14 being set to slip when the jaws engage the drill shank so that further rotation of the clamping ring 15 causes it to be moved axially by means of screw-threads 13 to apply pressure to an hydraulic fluid reservoir 17 so that a power-piston 16 applies clamping pressure to the jaws 3. The power-piston 16 comprises a relatively movable central core 16a which is engaged by the end of the drill to transmit axial end load on the drill to the hydraulic fluid to further increase the gripping pressure.
Patent GB-1169691-A (GB)
Title: Improvements in or relating to Electrical Insulation
Inventor: KIDD ALEXANDER CATTANACH
IPC: H01B3/04
Filed: 1965-07-22
Abstract: 1,169,691. Mica coatings. ENGLISH ELECTRIC CO. Ltd. 20 Oct., 1966 [22 July, 1965], No. 31335/65. Heading B2E. [Also in Divisions B5, H1 and H2] Mica tape or sheet for use as electrical insulation is impregnated with a heat-curable synthetic resin substance which comprises a mixture of bisphenol A epoxy resin and one or more cycloaliphatic resins. There may be between 50 and 70% by wt. of bisphenol A epoxy resin in the mixture. The mica tape or sheet is prepared by bonding one or more layers of individual mica flakes or sheets of mica paper to a backing material e.g. one or more layers of glass cloth, silk, synthetic  fabrics or mixtures of such materials, with a bonding agent which may be bisphenol A epoxy resin, or an epoxy phenolic resin as disclosed in Specification 1169692 and to which a final layer of glass cloth may be applied. Electrical apparatus having insulation including the mica tape or sheet may be formed by placing mica tape or sheet in contact with an electrically conducting part e.g. conductor, commutator or transformer part, impregnating the mica tape or sheet with a mixture of liquid bisphenol A epoxy resin and one or more cycloaliphatic resins and a curing agent e.g. hexahydrophthalic anhydride, and heating to cure the impregnating resin. There may be between 100 and 115 parts by weight of the curing agent to every 100 parts by weight of the mixture of liquid bisphenol A and one or more cycloaliphatic resins. Alternatively, the mica tape or sheet may be impregnated with the impregnating resin before it is applied to the conductor.
Patent GB-638390-A (GB)
Title: Improvements in and relating to wire reinforced belts for industrial purposes
IPC: F16G5/10
Filed: 1947-11-26
Abstract: 638,390. Belt gearing. DAYTON RUBBER CO. Nov. 26,1947, No. 31363. Convention date, April 12. 1943. [Class 80 (i)] A re-inforced rubber belt. for engagement with Vee pulleys has reinforcing cables 27 formed of a number of twisted or braided strands 20 of wire which are afterwards plated at 21. The top and bottom surfaces at least are fabric covered at 24, 29 and one at least of these surfaces is transversely grooved as at 30, 32.
Patent GB-300270-A (GB)
Title: Improvements in or relating to screw taps
IPC: B23G1/18
Filed: 1928-10-30
Abstract: 300,270. Kosfeld, F. W. Nov. 11, 1927. [Convention date]. Tops.-Curved shank taps for pipe sockets have the curved portion e of the shank reduced in diameter. When great strength is essential the shank may be elliptical with the minor axis in the plane of the bend. Extended flutes d of length greater than the sockets are provided to ensure chip clearance.
Patent GB-1157273-A (GB)
Title: Improvements in and relating to Screw-type Hydraulic Motors
IPC: B24B47/14
Filed: 1966-07-14
Abstract: 1,157,273. Hydraulic screw-type motors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. July 14, 1966 [July 17, 1965], No.31617/66. Heading F1T. A hydraulic screw-type motor comprises a cylindrical rotor disposed within a cylindrical bore in a housing, the rotor being formed with two helical grooves of opposite pitch, the housing being provided with an inlet for high pressure medium in the region where the helical grooves adjoin. An outlet duct is provided in the housing at the opposite ends of the helical grooves. The width of the helical walls forming the helical grooves is small compared with the groove width, whilst the core ciameter in the region of one of the groove patterns is larger than the core diameter in the region of the other groove pattern. At the end of the groove pattern of larger core diameter, there is provided an axial thrust bearing to which hydraulic medium is supplied. In the embodiment shown the rotor 4 is formed with helical groove patterns 5 and 6 of opposite hand, the rotor being mounted in the housing 1 by means of an axial thrust bearing 9, 10, 11. Hydraulic fluid under pressure is supplied through ducts 2 and 3 to the centre of the rotor and then flows therethrough in opposite directions, the fluid discharging into annular grooves 7 and thence through outlet duct 8. The core diameter of the rotor a is greater than core diameter b. The ratio of the width c of the helical wall to groove width d is 0À1 while the ratio of the clearance e between the peak of the helical walls and the cylindrical wall of the housing to the clearance f between the core periphery and the cylindrical wall of the housing is 0À085. The pitch angle of the grooves is 0À25 radian. The output shaft 12 is formed with helical grooves 14 where it passes through the housing so as to prevent leakage. A tool such as a grinding wheel 13 is mounted on the shaft. The rotor is 18 mm in length and 6 mm in diameter and the effective power is 40 W and the speed is around 50, 000 R.P.M.
Patent GB-625659-A (GB)
Title: Improvements in presses, in particular for riveting and punching
IPC: B30B15/22
Filed: 1945-11-23
Abstract: 625,659. Hydraulic presses. BOURSET, R. A. Nov. 23, 1945, No. 31642. Convention date, Dec. 6, 1944. [Class 69 (ii)] A hydraulic press has a series of fluid. operated intensifying pistons, the sequence of operation of which can be adjusted to make the pressure growth correspond to the work in hand. Compressed air supplied to the inlet 8 operates first the piston 5 to feed the toolcarrying piston 7 to contact the work. Subsequently, the piston 6 closes the port 14 and then pistons 1, 2, 3 and 4 are operated to increase the hydraulic pressure in the conduit 15. The sequence of operation of these pistons is adjusted by the needle valves 23, 24, 25 and 26. The exhaust from the air cylinders is controlled by the piston valve 21: In a modified arrangement the pistons are arranged so that the first opens an air supply passage to the subsequent cylinder when it reaches the end of its stroke. The sequence can be altered by three-way valves in each cross-passage.
Patent GB-732389-A (GB)
Title: Tubular heat exchangers
Inventor: MONTGOMERIE GEORGE ALAN
IPC: F28F13/06
Filed: 1952-12-15
Abstract: 732,389. Tubular heat-exchangers. SERCK RADIATORS, Ltd. Dec. 9, 1953 [Dec. 15, 1952], No. 31698/52. Class 64 (3). A heat-exchanger comprises at least one vertical tube a conveying steam provided on its inner surface with baffles c adapted to gather steam condensate from the said inner surface and to divert it to the axial region of the tube. As shown, concentric tubes a, b may be provided, the baffles c comprising perforated conical members (Fig. 1) or lengths of helically coiled wire (Fig. 3) and being disposed in the annular space between the tube. The inner tube b may be omitted.