baber/WOPTO huggingface dataset:
Patent GB-1370565-A (GB)
Title: Electrical filters
IPC: H03H11/12
Filed: 1973-04-11
Abstract: 1370565 Active filters; amplifiers G & E BRADLEY Ltd 11 April 1973 [14 April 1972] 17395/72 Heading H3T [Also in Division G4] In a bandpass or bandstop filter having the centre frequency of its pass- or stop-band determined by the capacitance and resistance of branches, one or more of the branches includes resistors which may be coupled in parallel by switches, and the switches are controlled by a pulse counting circuit which receives pulses from a clock source so as to vary the centre frequency in equal steps. As described, a bandstop filter comprising two parallel paths, one containing an amplifier 19 and switched R.C. circuit 17, 18, the other containing switched R.C. circuit 13, 14. For a bandpass response, the bandstop circuit is connected in the feed back path of a further amplifier. The switches are field effect transistors which are controlled by pulses derived from a clock generator 30, Fig. 2, the output from which is fed to dividers 29, 28 to produce control pulses for switches 22<SP>1</SP> ... 22<SP>n</SP> in unit 22 and pulses for switches 25<SP>1</SP> ... 25<SP>n</SP> in a similar unit (not shown). The clock output is also fed to dividers 34, 35 which provide outputs for indicators 37. The dividers 28, 35 are arranged to count up and down by a control unit 32 so as to sweep the centre frequency over a predetermined band. It is arranged that the minimum displayed number is 100 and the maximum 1099, these values representing the centre frequency. The position of the decimal point is determined by sub-range unit 33 which controls switches 23<SP>1</SP> ... 23<SP>m</SP> and 24<SP>1</SP> ... 24<SP>m</SP>.
Patent GB-1030828-A (GB)
Title: Track marker, particularly for seed drilling machines
IPC: A01B69/02
Filed: 1965-04-26
Abstract: 1,030,828. Seed sowing machines. AMAZONEN-WERKE H. DREYER. April 26, 1965 [April 30, 1964; Oct. 30, 1964], No. 17396/65. Heading A1D. A track marker for a seed sowing machine comprises a tool 13 mounted on a shaft 12 which is adjustably mounted in a member 9 which is journalled by means of a bush 10 on a cranked shaft 6 which is fixed in a tubular arm 1 pivoted on the machine frame 4. The shaft 12 is the same size as the shaft 6 so that the shaft 12 may be carried by the arm 1. In a modification the member 9 is omitted and the shaft 6 is extended and provided with a support to carry the shaft 12.
Patent GB-671193-A (GB)
Title: Improvements in or relating to drill bits
IPC: E21B10/58
Filed: 1950-07-12
Abstract: 671,193. Making drill-bits. TIMKEN ROLLER BEARING CO. July 12, 1950 [Sept. 1, 1949], No. 17447/50. Classes 83 (ii) and 83 (iii). Drill-bits.-A drill bit of the type wherein the bit body has a groove in which is mounted a cutter insert, is characterized in that the sides of either said insert or groove are inclined away from the sides of the other from the bottom of the groove upwards. The drill bit comprises a body A, Fig. 3, having a threaded bore 2 to receive a drill rod, and a smaller stepped bore at the working end for a tubular backing plug B which is brazed or otherwise secured therein. A number of radial parallelsided grooves 6 are formed in the working end to accommodate hard metal cutting inserts C. The plug B serves to position the inserts and is tubular to permit the passage of air and water during use. The inserts have oblique sides 9, Fig. 4, so that V-shaped spaces for bonding material are left on both sides of the insert despite any lateral shifting of the insert in the groove 8. Alternatively, the insert may be parallel-sided and the groove may be tapered outwardly towards the open end.
Patent GB-1304472-A (GB)
IPC: C07C/
Filed: 1971-05-27
Abstract: 1304472 Dimerization process SOLVAY ET CIE 27 May 1971 [27 May 1970] . 17497/71 Heading C2C Adiponitrile is produced (1) by the dimerization of a #-halogenated propionitrile using an amalgam, (2) by the dimerization of acrylonitrile using an amalgam with the alkaline by-product being neutralized by means of acid, or (3) by the electrolytic dimerization of acrylonitrile, the process being characterized in that deposits of polymeric by-products-and degradation products formed are eliminated by treatment with an aqueous solution of hydrogen peroxide. The amalgam dimerization (1) may be effected in an inert solvent, e.g. having a high dielectric constant, and a fraction of the reaction mixture may be continuously abstracted from the dimerization reactor and separated into an organic phase and a solid phase comprising a metal halide salt, the salt may be washed with propionitrile produced as a byproduct of the reaction, the washing liquid may then be combined with the organic phase and the combined organic phase may be subjected to separation under reduced pressure in two stages and subsequently the adiponitrile so obtained may be rectified.
Patent GB-303721-A (GB)
Title: Improvements in and relating to detachable auxiliary soles for footwear
IPC: A43B13/36
Filed: 1928-06-18
Abstract: 303,721. Dykes, J. L. G., and Pruyn, S. R. June 18, 1928. Protectors, securing.-A detachable auxiliary sole for footwear comprises a rubber sole 4 extending from toe to arch, and a thin elastic extension 5 at the edge of which is a stout elastic bead or cord 6 adapted to grip over the edge of the shoe sole. The cord 6 is extended at the outside of the foot to form a heal-engaging loop 7, and is bent inwardly at the inner side of the foot to merge into the loop 7 at about the longitudinal axis of the sole. The object of this construction is to cause the flange and cord to grip the shoe sole tightly at the inner side of the waist. The parts indicated at 9 and 10 are filled in with thin rubber.
Patent GB-758576-A (GB)
Title: Improvements in electric heating stoves
IPC: F24C7/06
Filed: 1954-06-15
Abstract: 758,576. Electric air-heaters. KLEMP, G. June 15, 1954, No. 17586/54. Class 39(3). A cylindrical casing 1 with cold air inlets 3 and a heated air outlet 4 supports, by means of struts 9, an inner hollow cylindrical member 6 over the inner surface of which are secured electric heating elements 10. A hollow conical baffle 21 directs the cold incoming air against the heating elements. Two rows of elements, one row above the other in staggered relation, may be provided. Instead of the baffle 21, a further heater element with a reflector may be positioned at the lower end of the cylindrical member 6, the reflector being arranged to direct heat radiations to a, point on the vertical axis of the member and below the air outlet 4. In Fig. 4 elements 10 are arranged on the outer wall of the member 6 and a part of the inner wall thereof is formed as a reflector, preferably parabolic, for a heating element 25. Openings are provided in the casing member for the heat radiations and the outer opening may be covered by heat resistant glass &c. Baffles in the space 12 guide cold air towards the heating elements. Fig. 5 shows two heat radiating elements 25 each associated with a parabolic reflector 29. Each heating element may comprise a helical resistance wire on a grooved carrier rod, the rod being positioned within a ceramic tube and the space therebetween being filled with ceramic powder.
Patent GB-573065-A (GB)
Title: Device for measuring stamp perforations
IPC: G01B3/02
Filed: 1943-10-26
Abstract: 573,065. Stamp perforation gauges. RANG, C. P. Oct. 26, 1943, No. 17603. [Class 97 (iii)] [Also in Group XIX] A device for measuring stamp perforations comprises a transparent panel with a series of longitudinal converging lines 1 and lateral lines 2 or graduations whereby when a stamp viewed through the panel is positioned so that the perforations coincide with the lines 1 'the number of perforations can be read off on the lateral edges of the panel. The panel may be mounted in a slide fitted with a magnifying glass.
Patent GB-300542-A (GB)
Title: Improvements in or relating to the cylinders of double-acting internal combustion engines
IPC: F02F11/00
Filed: 1928-06-19
Abstract: 300,542. Ferguson, G. Nov. 13, 1927, [Convention date]. Cylinders receiving liquid fuel. - In a double-acting cylinder, the fuel valve is located at 12 in a rounded part of the neck which forms a cup-shaped combustion chamber.
Patent GB-460088-A (GB)
Title: Improvements in or relating to torsional vibration dampers for crankshafts
IPC: F16F15/28
Filed: 1935-06-20
Abstract: 460,088. Torsional vibration-dampers. REED PROPELLER CO., Inc. June 20, 1935, No. 17731. Convention date, Feb. 21. [Class 108 (iii)] [Also in Groups XXVI and XXIV] A balance-weight torsional, vibration damper for engine crank shafts, consists of a large mass in which the properties of a simple pendulum are achieved by supporting the mass on rollers freely mounted in bores in both the mass and support. In the construction shown, the shaft 10 has a crank 14 with cheeks 12 provided with extensions 16 upon either side of which are slidably mounted counterplates 22 riveted together. Rings 18, 20 of equal bore are mounted in the parts 16 and 22, and rollers 26 are arranged between these. The effective length of the simple equivalent pendulum is equal to the difference in diameter between the bores of the rings 18, 20 and the diameter of the rollers 26. A formula for determining the length is described. The rollers have flanged ends 40 of a diameter slightly less than the bores of the rings 18, 20. When the engine is running the rollers and rings are kept by centrifugal force in the position shown. To guard against looseness before the crankshaft rotates steadily, adjustable two-part, arcuate ended struts or compression links 34, 36 are provided, which engage pockets 30, 32 in the webs and counterweights respectively. Specification 444,222 is referred to.
Patent GB-666525-A (GB)
Title: Improvements in or relating to means for supporting floors
IPC: E04B1/04
Filed: 1949-07-05
Abstract: 666,525. Columns for buildings. BONNET, P. E. July 5, 1949 [July 5, 1948], No. 17735/49. Class 20(iv) Means for supporting a floor comprise a pillar c with a capital thereon defined by the material within a ring d surrounding the pillar. The ring is so shaped that the stresses to which it is subjected are constant over the entire periphery of the capital. The floor itself may be made in accordance with Specification 665,869.
Patent GB-1161278-A (GB)
Title: The antibiotic adriamycin
Inventor: ARCAMONE F CASSINELLI G GAETAN
IPC: C12P1/06
Filed: 1968-04-16
Abstract: 1,161,278. An antibiotic, adriamycin. SOC. FARMACEUTICI ITALIA. 16 April, 1968 [18 April, 1967],No. 17819/68. Heading C2A. The invention comprises an anti-tumour, antibacterial antibiotic, adriamycin having the formula its aglycone, adriamycinone, of formula and its salts with inorganic and organic acids. Adriamycin is produced by cultivating Streptomyces peucetius var. caesius I.M.I. 131.502 (I.M.R.U. 3920). F.I. 106 (Farmitalia microbiological collection) in a liquid nutrient medium under aerobic conditions. Adriamycin may be isolated from the whole broth, the separated mycelium or clarified broth. The mycelium is extracted with acidified acetone, neutralized, acetone removed in vacuo, the aqueous residue adjusted to pH 3À0, extracted with chloroform to remove impurities, adjusted to pH 8À6, extracted with chloroform/ methanol (9:1) and precipitated from the extract by the addition of diethyl ether. The clarified broth is extracted with chloroformmethanol (9: 1) at pH 8.6, re-extracted with 0À01 N HCI, the acid extract adjusted to pH 8À6 and the chloroform-methanol extraction repeated, the crude being recovered as above. Alternatively, the antibiotic may be adsorbed on a cationic carboxylic exchange resin in acid form, and eluted with methanolic sodium chloride. Adriamycin is purified by chromatography on cellulose powder buffered with M/15 phosphate at pH 5À4 and eluted with propanol-ethyl acetate-water (7: 1: 2). Active fractions are extracted with chloroform at pH 8À6 and adriamycin HCl is precipitated by the addition of HCl in methanol. It may be recrystallized from ethanol. Adriamycinone is obtained by the acid hydrolysis of adriamycin HCl e.g. heating with 0À5N HCl for one hour at 100 C. Adriamycin forms salts with H 2 SO 4 , acetic, propionic, valeric, palmitic, oleic, citric, succinic, mandelic, glutamic and pantothenic acids. Pharmaceutical compositions for oral, parenteral or topical administration comprise the antibiotic adriamycin, its aglycone adriamycinone or its salt, alone or in admixture, together with a carrier.
Patent GB-315551-A (GB)
Title: Diaphragms for electrolytic cells
IPC: C25B13/06
Filed: 1928-06-20
Abstract: 315,551. Wolinski, K. June 20, 1928. Diaphragms for electrolytic cells, especially for the decomposition of water, are made of a fabric of interwoven asbestos and metal threads.
Patent GB-687789-A (GB)
Title: Manufacture of aromatic sulphonic acid esters containing an amino group
Filed: 1950-07-17
Abstract: The invention comprises aromatic sulphonic acid esters of the formula <FORM:0687789/IV (b)/1> where X represents an aryl residue of the benzene series which may contain a carboxylic acid group and/or a substituent incapable of salt formation, particularly those of the formula <FORM:0687789/IV (b)/2> where the nucleus I may contain a further substituent incapable of salt formation and processes for the manufacture thereof by reacting the corresponding ester of a 1-carboxy-2-chloro-5-sulphonic acid with ammonia.  The reaction with ammonia is preferably carried out at above 100 DEG  C. in the presence of metallic copper.  Specified esters of 1-carboxy-2-chlorobenzene sulphonic acid which may be reacted with ammonia are the phenyl, 2-carboxy phenyl, 3- or 4-methyl-phenyl 4-secondary-butyl-phenyl, 4 - tert. - amyl - phenyl, 4 - octyl - phenyl and the 4-methyl- or 4-chloro-2-carboxy-phenyl esters.  In an example 2-chlorobenzene-5-sulphonic acid chloride-1-carboxylic acid is reacted with 2-hydroxybenzoic acid and the resultant ester treated with ammonia to give 2-aminobenzene-5-sulphonic acid phenyl ester-1 : 21-dicarboxylic acid.  Other products which may be similarly prepared are the corresponding sulphonic esters of phenol, p-cresol, 4-tert.-amyl phenol, 4-octyl-phenol, 4-chlorophenol and 2-carboxy-4-methyl phenol.
Patent GB-546622-A (GB)
Title: Improvements in or relating to airscrews
IPC: B64D35/04
Filed: 1940-12-19
Abstract: 546,622. Screw propellers. FAIRHURST, L. G., and ROTOL AIRSCREWS, Ltd. Dec. 19, 1940, No. 17901. [Class 114] In a co-axial airscrew installation, the hub of the rear airscrew is secured to a flange on the front end of the outer shaft and is rotatable about the inner shaft, the arrangement enabling the hubs of the two airscrews to be made of the same size and, if desired, to be interchangeable. In the installation shown in the Figure, the hub 5 of each airscrew is provided with an attached sleeve 8 formed with a flange 12 and splines 13, the flange of the rear sleeve being secured to a flange 4 on the front end of the outer shaft 2, and the splines of the front sleeve being engaged with splines on the inner shaft 1. If it is not required to interchange the airscrews, the flange 12 and splines 13 may be omitted from the front and rear sleeves respectively. The rear sleeve is retained by rings 15, 16, 17 and a threaded sleeve 18
Patent GB-545973-A (GB)
Title: Improvements relating to spark ignition apparatus for internal combustion engines
IPC: F02P1/08
Filed: 1940-12-19
Abstract: 545,973. Ignition systems. LUCAS, Ltd., J., and LAIRD, J. A. Dec. 19, 1940, No. 17903. [Class 7 (iv)] In a system in which a condenser b is charged from a D.C. generator or other source a and discharged through a smaller condenser d in series with the primary winding e of an ignition transformer, a contact device h connects the members d, e alternatively in parallel with the condenser b and with a by-pass circuit i for charging and discharging the condenser d. The movable member g of the contact device is actuated by means co-ordinated with the engine cycle. In a modification, the device h is replaced by a pair of separable contacts and a rotary commutator, the fixed contacts of which are connected respectively to one side of the condenser b and to the bypass circuit i. Instead of a D.C. generator, an A.C. generator may be used with a thermionic or other rectifier.
Patent GB-807845-A (GB)
Title: Improvements in or relating to machines for handling small articles such as screws or the like
Inventor: BROWN CALVIN O
IPC: B65G47/14
Filed: 1955-06-21
Abstract: 807,845. Screwing-up screws. SET SCREW & MFG. CO. June 21, 1955, No. 17906/55. Drawings to Specification. Class 83 (3). [Also in Group XXX] Headless screws are oriented by a pair of grooved rollers so as to lie all in the same direction, and are then fed to a screw-driving machine. The machine is identical with that described in Specification 807,846. Specification 687,622, [Group XXV], also is referred to.
Patent GB-813251-A (GB)
Title: Improvements in or relating to vacuum deposition equipment
Inventor: SNOAD RONALD HARVEY
IPC: C23C14/24
Filed: 1956-06-11
Abstract: 813,251. Coating by vapour deposition. STANDARD TELEPHONES & CABLES, Ltd. June 11, 1956, No. 17918/56. Class 82(2) Vacuum deposition apparatus in which a layer of a substance is deposited on a surface as a succession of coatings formed during repeater passages of the surface through the vapour of the substance comprises a trough for vaporizing the substance, a carrier for passing a surface repeatedly over the trough and thus through the vapour of the substance, and means for moving the trough so as to control the clearance between the trough and a surface on the carrier during a passage over the trough. As shown, sheets 17, e.g. of steel, to be coated on one surface, e.g. with selenium, are carried on frames 16 which are mounted in pairs at each side of polygonal framework 13, one frame inside, and one outside, the said framework. Framework 13 is carried on rotatable shaft 5 which extends through the length of vacuum chamber 1 and is mounted in bearing 4 in door 2. Evaporation troughs 23, 24 are fixed in chamber 1 so that trough 23 is inside, and trough 24 is outside, framework 13. The troughs are associated with cams 9, 10 so that as the shaft 5 rotates an up-and-down movement is imparted to the troughs, the clearance between said troughs and sheets 17 being thus adjusted and hence the rate of deposition controlled. Elements 15 are provided between the members of framework 13 to heat the sheets 17; the heat thus supplied may be controlled by the methods described in Specification 813.252.
Patent GB-1119917-A (GB)
Title: Improvements in or relating to dynamic gas bearings
IPC: F16C27/06
Filed: 1967-04-19
Abstract: 1,119,917. Bearings. LINDE A.G. 19 April, 1967 [21 April, 1966], No. 17921/67. Heading F2A. A fluid bearing is provided with equi-spaced tilting-pads 4 and 4a, the latter being urged radially inwardly towards a shaft 1 located within the pads by means of a spring 6. The tilting-pads are carried by an intermediate bush 5 which is resiliently supported by means of 0-rings 7 in a bore 3 of a housing 3a. The pads are supported axially by means of rings 8, 9, 10 and 11. In a modification, the 0-rings 7 may be replaced by support-blocks distributed around the periphery of the intermediate bush 5. The 0-rings or the support-blocks may be made from layers of P.T.F.E. foil and fibre glass mat.
Patent GB-1145892-A (GB)
Title: Improvements in chain links
IPC: F16G15/04
Filed: 1966-04-25
Abstract: 1,145,892. Shackles. NEMAG N.V. 25 April, 1966 [26 April, 1965], No. 17960/66. Heading F2Q. A chain closure link comprises a C-shaped body 1 whose ends extend towards each other and are formed with stepped portions 4, 3, 6, 5 which interlock with stepped portions 18-21 on the head 8 of a body 7 which is held in the space between said ends by a member 9 which is urged towards the body 7 by a compression spring 15 housed in a bore 11 through the body 7 and acting on the head 14 of a pin 19 secured to the member 9 and extending through the bore 11. To remove the body 7, the pin 10 is pressed into the bore 11 against the spring 15 until projections 24, 25 of the member 9 are clear of the body 7. The member 9 is turned through 90 degrees and may then pass through the space between the ends of the body 1 as the body 7 is removed. A sleeve 13 or a shoulder in the bore 11 limits the travel of the pin 10.
Patent GB-458595-A (GB)
Title: Improvements in or relating to the treatment of textile yarns
IPC: D02G1/02
Filed: 1935-06-22
Abstract: 458,595. Curling or crimping yarns &c. DREYFUS, H., 22, Hanover Square, London. June 22, 1935, No. 17977. [Class 120 (iii)] In a process for crimping filaments or fibres, a number of yarns are associated together, then twisted together and the crimp imparted by the twist set while the yarns are travelling, the twist is then removed and the crimped yarns separated from each other and separately collected; the yarns may contain filaments or fibres of cellulose acetate or other organic derivative of cellulose, the crimp may be set in the yarns by applying steam to them while they are travelling, the setting may be effected 'at a point where the yarns are actually receiving twist, the untwisting, separating and collecting of the yarns may be carried out continuously with their association, twisting and setting, and the twisting and untwisting may be effected by applying a false twist to the yarns. As shown, the yarns 1, 2 are drawn from separate bobbins 3, 4 and through guides 5 to a steaming, or other setting device 6 ; the yarns pass together from the device 6 through a false twisting device 7 and are then separated by a rod 9 and led over a guide 10 to the rollers 11, 12, 13 which draw the yarns from the bobbins and feed the separated yarns to the take-up or collecting devices 14, 15. The yarns from the devices 14, 15 may be cut into staple fibre and may be directly converted into staple fibre yarns as described in Specifications 424,683, 424,752, 424,830, and 424,879. According to the Provisional Specification, the false twisting device may be provided with a hood into which steam is blown or the yarns may be drawn through a steaming device of the type described in Specification 440,653 and the false-twisting device may comprise a pair of discs each formed with an eccentric hole through which the yarns are passed, the discs being spaced apart and driven in opposite directions ; a steam pipe having openings for the entry and exit of the yarns is disposed between the discs.
Patent GB-477949-A (GB)
Title: Improved driving means for oscillating apparatus such as screens, separators or concentrators
IPC: B07B1/42
Filed: 1936-06-29
Abstract: 477,949. Sifting- apparatus. REXMAN MILL CO., Ltd., and ROBERTS, E. G. L. June 29,1936, No. 17988. [Class 117] [Also in Group XXIV] A sieve, concentrator, or like body is oscillated by a vertical shaft carrying two balance weights and having an eccentric member at its upper end from which a pin or stub shaft extends and engages the table to be vibrated. In the form shown, the shaft is supported by bearings 7, 8 in a fixed casing 1, 2 and carries a pulley 14 and balance weights 28, 29. Its upper end terminates in an eccentric cup 18 from which a pin 21 extends into a socket 24 carried by the frame 25 of the sieve or table. Lubricating passages are provided.