baber/WOPTO huggingface dataset:
Patent GB-695684-A (GB)
Title: Improvements in or relating to carrying cases for portable sewing machines
IPC: D05B77/00
Filed: 1951-12-12
Abstract: 695,684. Sewing-machine cases. MEFINA SOC. ANON. Dec. 12, 1951 [Jan. 22, 1951], No. 29059/51. Class 52(i) A carrying case for a free arm sewing machine comprises two portions 1, 2 joined by hinges to a member 3, the member 3 having a central hinge so that it may be folded up, permitting the edges of the parts 1 and 2 to be brought together to form a work table for the machine. The part 2 has an opening 8, covered when the case is closed, by a flap 11, the opening receiving the free arm of the machine, which may be held in a bracket 10. The bracket 10 serves to locate the machine, and the machine base is clamped by members 22 when the case is closed. Clips 17 hold the flap 11 when the case is used as a worktable and the case is then supported by feet 26. Supports are provided on the base 3. Ribs 21 stiffen the members 1, 2. In transit, screws may hold the machine to the case bottom.
Patent GB-677351-A (GB)
Title: Improvements relating to snap-action electrical switches
IPC: H01H23/16
Filed: 1949-11-14
Abstract: 677,351. Snap-action switches. NETTLE ACCESSORIES, Ltd., IDDON, Ltd., V. H., and GARNER, J. A. Nov. 14, 1950. [Nov. 14, 1949] No. 29064/49. Class 38 (v). The movable contact f, co-operating with contact g, is carried on an arm b pivoted in a groove in a terminal block a, the arm being cranked at c and having a blade spring d riveted thereto, the free end of the spring being bent over to engage the side of the lower end of the dolly j. A steel ball m embedded in the dolly deflects the spring as the end of the dolly is moved to the left, so that as the highest part of the ball passes the spring, the latter slips to the right to open the contact with a snapaction. The reverse action takes place on opposite movement of the dolly, which has a part pivotal in a part-cylindrical seating l in the base.
Patent GB-519984-A (GB)
Title: An improved wardrobe case, trunk or the like
IPC: A45C13/03
Filed: 1938-10-07
Abstract: 519,984. Garment hangers. PARKER, WAKELING & CO., Ltd., and SNOW, P. W. Oct. 7, 1938, No. 29068. [Class 52 (v)] [Also in Group XVII] A wardrobe case with a suspension ring at 5 has an I-shaped, plate 10 pivoted slidably at 13 so that after a garment is hung in front of it from a hanger 17 it may be turned to the position shown in dotted lines with the garment holder on it. A hanger support 7 at each side is elbow-jointed at 8 so that the two segments 8' may meet and be connected to form a continuous bar. Specification 504.929 is referred to.
Patent GB-799172-A (GB)
Title: Unidirectional waveguide attenuator
Inventor: LEWIN LEONARD
IPC: H01P1/365
Filed: 1956-09-24
Abstract: 799,172. Non-reciprocal attenuators. STANDARD TELEPHONES & CABLES, Ltd. Sept. 24, 1956, No. 29077/56. Class 40 (8). A uni-directional attenuator comprises a main waveguide, e.g. of the strip-line or coaxial type, and its sub which are both adapted for the propagation of an approximate T.E.M. mode and are coupled together to produce a circularly polarized magnetic field. A static magnetic field is applied to some ferromagnetic ceramic material, e.g. nickel-zinc ferrite, located within the circularly polarized region to condition it for gyromagnetic resonance. In one form the guide comprises a strip-like conductor 1, 1<SP>1</SP>, a ground plane conductor 4 and a dielectric 3 which extends between them. A strip-line stub 5 includes a strip-like conductor 5 which extends at 90 degrees from, and is integral and coplanar with, the main guide. The stub also incorporates the same dielectric and ground plane sheeting as the main guide. The ferrite 6 is inserted in a hole drilled through the ground plane, dielectric and strip conductors. An auxiliary strip-line stub 9, symmetrically opposite stub 5, may be used to improve the matching. Polepieces 7, 8 (not shown) provide the static field. The strip-line waveguide may alternatively be of the sandwich form.
Patent GB-662317-A (GB)
Title: Percussion meehanism for mortars, bomb-throwers and similar fire arms
IPC: F41A19/13
Filed: 1949-11-14
Abstract: 662,317. Mortars; bomb throwers. SOC. NOUVELLE DES ESTABLISSEMENTS BRANDT. Nov. 14, 1949. [March 15, 1949] No. 29108/49. Class 92 (ii). Relates to muzzle-loaded bomb throwers and like guns of the kind in which the striker 41 can either be locked in a forward protruding position, through the medium of a sleeve, for instant firing when the projectile encounters it, or withdrawn to a position where firing can be controlled. According to the invention the striker forms a valve, at 38, with the sleeve to prevent rearward escape of the gases of explosion. In the construction shown, the striker 41 and guide 22, 23 are located in a cylindrical housing 11 which, by means of a bush 7, is secured to the base 3 of a mortar. The inner part 23 of the sleeve is secured to the outer part 22, is formed with a seat for the valve on the striker, and is bored to permit the stem 40 of the striker to slide therein. The outer part 22 has a thin-walled forward part 26 adapted to open out slightly to provide a seal with the housing 11 when subjected to gas pressure, and the rear face of the part 22 is engaged by the face 34 of a flange on a slidable sleeve 33. The rear end of the striker stem 40 is fitted with a hook 46. This hook can be retracted by a nose 63 of a spring- controlled hammer of the firing mechanism, which mechanism is removably fitted in the base 3 and is constructed in substantially the same manner as the removable firing mechanism disclosed in Specification 623,708. Operation. By a suitable adjustment of a knob 51 of the firing mechanism an arm 571 of a two-armed lever pivoted at 58 is brought to bear against the sleeve 33 and this in turn moves the guide 22, 23, and the striker forwards to the forward "automatic" firing position. Reverse rotation of the knob 51 swings the arm 57<SP>1</SP> clear of the sleeve and enables the hammer to function, upon moving a firing lever 67, as in Specification 623,708.
Patent GB-1497525-A (GB)
Title: Oil emulsion processing
IPC: C11B11/00
Filed: 1976-07-13
Abstract: 1497525 Breaking oil-water emulsions READING & BATES PRODUCT DEVELOPMENT CO EL PASO CONSERVATION CO and BOEING ENVIRONMENTAL PRODUCTS Inc 13 July 1976 [18 Sept 1975] 29147/76 Headings C5C and C5E Oil-water emulsions, e.g. wool-scouring emulsions or mineral cutting oil emulsions, are broken by (i) forming a mixture of the emulsion with a liquid amine in which the oil is soluble and which has an inverse critical solution point with water, at a temperature below the amine/water phase separation temperature so as to form a single liquid phase, (ii) raising the temperature above the critical solution temperature to effect liquid phase separation and form an amine phase containing substantially all the oil and a water phase and (iii) separating the amine phase from the water phase. The amine is preferably triethylamine with a critical solution temperature of 18À7‹ C. A filter aid, e.g. silica, may be added to the mixture, which is then filtered to remove solid material.
Patent GB-717139-A (GB)
Title: Improvements in or relating to voltage clamping circuit arrangements
Inventor: SHIPWAY ROGER PROWSE
IPC: H04N5/18
Filed: 1951-12-12
Abstract: 717.139. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 3. 1952 [Dec. 12, 1951], No. 29150/51. Class 40 (3). [Also in Group XL (c)] In a clamping or D.C. restoring circuit employing four diodes D1 ... D4 fed with positivegoing and negative-going rectangular waves at points E, G. the wave to be clamped is fed in over capacitor C and the output taken from the point A, means are provided for amplifying the difference in potential between the point A and a reference potential VR, the amplifier potential being fed to point B. The amplifier may comprise differentially connected valves V1, V2 feeding through a phase-reverser V3, a cathode follower V4. In a modification (Fig. 3 not shown), the input to the amplifier is isolated by a similar four-diode network.
Patent GB-1143386-A (GB)
Title: Improvements in the treatment of synthetic polyester shaped articles
Inventor: CARRINGTON JOAN LESLIE
IPC: D06M15/507
Filed: 1965-07-09
Abstract: 1,143,386. Block copolyesters. IMPERIAL CHEMICAL INDUSTRIES Ltd. 4 July, 1966 [9 July, 1965], No. 29173/65. Heading C3R. [Also in Division D1] A block copolymer suitable for use in the treatment of synthetic polyester shaped articles is prepared by heating together a low molecular weight fibre-forming polyester, e.g. poly-(ethylene terephthalate) and an unsaturated polyester, e.g. poly-(ethylene maleate).
Patent GB-1310698-A (GB)
Title: Sulphur-containing 2-oxazoline and oxazine compounds and processes for producing same and polymers thereof
IPC: C07D265/08
Filed: 1970-06-16
Abstract: 1310698 Oxazolines; oxazines DOWCHEMICAL CO 16 June 1970 [16 June 1969] 29182/70  Heading C2C [Also in Division C3] Novel sulphur containing 2-oxazoline or oxazine compounds of the formula  wherein R is alkylene of from 2 to 20 carbon  atoms, arylene of from 6 to 10 carbon atoms, alkylarylene of from 7 to 15 carbon atoms, an alkylenepolythioether residue in any alkylene group of which there are from 1 to 10 carbon atoms, or an arylenepolythioether residue, any arylene group of which is of 6 to 10 carbon atoms; each R<SP>1</SP> is hydrogen or alkyl of from 1 to 4 carbon atoms, R<SP>11</SP> is hydrogen, alkyl of from 1 to 4 carbon atoms, or phenyl; each Q is hydrogen, methylol, or wherein G is alkyl of from 1 to 20 carbon atoms, or phenyl, and each n is zero or 1, are prepared by reacting with H(S-R) n SH in the presence of a free radical reaction catalyst and/or actinic radiation.
Patent GB-1337067-A (GB)
Title: Waterproof wrist watch cases
IPC: G04B39/02
Filed: 1971-06-22
Abstract: 1337067 Watch case ORIENT WATCH CO Ltd 22 June 1971 [13 Nov 1970] 29210/71 Heading G3T In a waterproof wrist watch case, a bezel 2 with a non circular e.g. oval inner profile, is fitted over a circular watch glass 3 to form a non-circular glass profile. The waterproofing between the glass 3, the back cover 6, the crown 7 and the main body 1 of the case is ensured by 'O' rings 4, 5 and 7<SP>1 </SP>respectively. The indicia on the dial 13 are arranged in a complementary non circular shape.
Patent GB-1040010-A (GB)
Title: Improvements in microtrons
IPC: H05H13/10
Filed: 1965-07-12
Abstract: 1,040,010. Particle accelerators. MULLARD Ltd. July 12, 1965 [July 15, 1964], No. 29370/65. Heading H1D. In a microtron with a ferro-magnetic electron beam extraction or deflection tube, distortion of the magnetic field is prevented by providing ferromagnetic compensating rods on either side of the ferromagnetic tube and of similar extent. The tube and rods may all be circular in crosssection, of the same diameter and lie in the same plane. The spacing may be equal with the outermost rods semi-circular and fixed to the polepieces. In modifications the spacings and diameters may be varied or the outermost rods displaced towards the centre of the accelerators. The compensating rods may be oval or rectangular in cross-section instead of circular.
Patent GB-977303-A (GB)
Title: Improvements in data collection systems
IPC: G06F11/10
Filed: 1960-12-30
Abstract: 977,303. Selective signalling systems. GENERAL TIME CORPORATION. Dec. 30,1960 [Dec. 31,1959 No.29507/64. Divided out of 977,301. Heading G4H. The invention claimed is a data collection system in which a central receiver-recorder records messages received from transmitters on a continuous medium, received characters only being recorded if a character gating signal is received at the same time. The system and its operation are fully described in Specification 977,301. Specification 960,391 also is referred to.
Patent GB-1065274-A (GB)
Title: Improvements in strewing apparatus for sand, gravel and similar material
IPC: E01C19/20
Filed: 1964-07-18
Abstract: 1,065,274. Grit distributers. D. EJNARSSON. July 18, 1964, No. 29629/64. Heading A1D. A sand or like material distributing apparatus comprises road wheels 4, a hopper 1 having an outlet aperture 2 extending transversely of the apparatus, and an eccentric 11 driven from one of the road wheels by a chain 10, which eccentric is conected to a sieve 12 located above the outlet aperture. A sheet 14 of flexible material e.g. of rubber 14 is connected to one side of the hopper, the lower portion 15 of which side is connected to the eccentric for vibration thereby. The opposed side of the hopper has a flexible sheet 9 thereon the upper edge of which is connected to the sieve such that it may vibrate therewith, and the lower portion of that side comprises an angle rail 8 adjustable through a system of levers, by a lever 6 to control the size of the outlet aperture. When detached from a towing vehicle, a foot 17 supports the apparatus. A studded axle 16, may be slipped over the road wheel axles 3, such that material after passing through the sieve may be broken up further.
Patent GB-639123-A (GB)
Title: Treating magnesium bearing brines
IPC: C01F5/22
Filed: 1946-10-04
Abstract: <PICT:0639123/III/1> In precipitating magnesium hydroxide from brines, by the addition of lime-bearing reactant, the magnesium ion content of the reacting solution is continuously diluted, e.g. to 0.01-0.8 grms. litre, by adding a magnesium ion-free mother liquor with precipitate resulting from a previous reaction, the amount of lime &c. added to the diluted solution being such that the indicated pH of the reacting mass is 9.6-11.5 for sea water and 9.8-12.5 for low sodium-content brines, thickening and filtering.  In one method of operation, brine flows sequentially through a series of agitator tanks, slaked and classified lime or calcined dolomite being fed thereto, the feed to the first tank being optional. Part of the unseparated reaction slurry is passed from the last tank of the series to the first.  The brine may be first softened with lime in an apparatus of the kind disclosed in Specification 545,913, [Group I]. Another magnesium precipitation plant comprises a tank 70 to which the (softened) brine is delivered through rotating apertured radial arms 71.  The arms carry vertical V-sectioned blades 75 having interposed between them stationary V-sectioned baffles 76.  The lime is supplied through pipes 85-88, and the reaction liquor is circulated by pump 81, the effluent escaping into launder 79 and through pipe 27.  Reference has been directed by the Comptroller to Specification 640,348.
Patent GB-1152625-A (GB)
Title: Improvements in Armour Piercing Shells
Inventor: GROLLY WALTER
IPC: F42B14/06
Filed: 1967-06-28
Abstract: 1,152,625. Projectiles. BREVETS AEROMECANIQUES S.A. 28 June, 1967 [21 July, 1966], No. 29788/67. Heading F3A. An armour piercing projectile for firing from rifled gun barrels comprises a hard, dense, metallic core 1, e.g. of tungsten carbide, housed within a detachable, tubular case 2 of lighter material e.g. aluminium alloy or plastics, the core being locked in the case at the front end by a split ring 6 which protrudes from an annular groove 7 to abut a shoulder 5 on the core. When the projectile is fired, the case 2 and core 1 are set spinning and the ring 6 expands wholly into groove 7. Due to resistance in moving through the atmosphere the case 2 then quickly drops away from the core 1. A hole 12 in the base of the case prevents the occurrence of suction which would oppose the separation and also enables a tracer compound 13 to be ignited by the hot gases in the gun barrel: An empty annular space (not shown), may be provided inside the case so that it contacts the core over two separate areas of its length. The case may also be fitted on the outside with a thin steel ring (not shown) to prevent too deep a penetration of the barrel riflings into the case.
Patent GB-1510756-A (GB)
Title: Electric highvoltage substations
IPC: H02B5/00
Filed: 1976-07-16
Abstract: 1510756 High voltage substations; supporting bus-bars; electrical couplings ODES FILIAL VSES INST PO PROEKTIROVANIJU ORGAN ENERGETISCHE STROITEL ORGENERGOSTROI 16 July 1976 29788/76 Headings H2H H2E and H2C An outdoor high voltage substation comprises bus-bar sections 9 provided with compensators 12 for compensating the variation with temperature of the lengths of the bus-bar sections, each compensator consisting of a flexible current conductor, and V-shaped support members 10 for the bus-bar sections, the support members being mounted on insulated supports 17. The substation consists of networks 1, 2, 3 the busbar sections of which are mounted on the support members 10 which in turn are mounted on isolators 4, 7, 8 and insulators 11. Circuit breakers 5 are also provided. The ends of the bus-bar sections are mounted at the ends 19, 20 of the limbs 13, 14 of the support members. The mountings enable relative movement between one or both bus-bar sections and the associated limbs 13, 14. In a modification, Fig. 8 (not shown), each compensator comprises a pair of flexible current conductors joined together by a plate.
Patent GB-842323-A (GB)
Title: Aminoguanidine derivatives
Inventor: BIRTWELL STANLEY
IPC: C07C281/18
Filed: 1956-10-01
Abstract: The invention comprises guanidine compounds of the general formula: <FORM:0842323/IV(b)/1> (wherein R1 represents an aryl radical of not more than 10 carbon atoms, optionally substituted by alkyl or alkoxy groups or halogen atoms, and R2 represents an alkyl radical, optionally substituted by a hydroxy group, an aralkenyl radical optionally substituted by a dialkylamino group, or a mono- or di-cyclic heterocyclic radical, optionally substituted by alkyl, acyl, carbalkoxy, hydroxy or tertiary amino groups), and the manufacture thereof by interaction of an aminoguanidine of the formula:  <FORM:0842323/IV(b)/2> or an acid addition salt thereof, with an aldehyde of the formula:  R2-CHO or a functional derivative (e.g. bisulphite compound or acetal) thereof, advantageously in the presence of an inert diluent or solvent (e.g. water or a lower aliphatic alcohol).  Examples describe the preparation of compounds containing various combinations of the following substituents: R1: p-ethoxyphenyl, p-chlorophenyl, 5:6:7:8-tetrahydro-2-naphthyl, p-tolyl and 2:4:5-trimethylphenyl; = CHR2: isobutylidene, 4-azabenzylidene, cinnamylidene, ethylidene, 3-indolylmethylene, 2-thienylmethylene, p-dimethylaminocinnamylidene, 3-hydroxybutylidene, 4-hydroxy-6-methyl - 2 - piperidinopyrimidyl - 5- methylene, 1 - acetyl - 1 : 2 : 3 : 4 - tetrahydroquinolyl - 6 - methylene, 5 - carbethoxy - 2 : 4 - dimethylpyrrole-3-methylene and furfurylidene.  The Provisional Specification comprises compounds of the general formula:  <FORM:0842323/IV(b)/3> wherein R1 represents a hydrocarbon radical, optionally substituted, R2, R3 and R4 represent hydrogen or hydrocarbon radicals, optionally substituted, and R5 represents a hydrocarbon or heterocyclic radical, optionally substituted, provided that when R2, R3 and R4 represent hydrogen and R5 a 5-nitro-2-furane radical, R1 does not represent a methyl, ethyl or n-butyl radical. Specification 842,325 is referred to.
Patent GB-1357915-A (GB)
Title: Method and arrangement for controlling a weather satellite  picture recording apparatus
IPC: H04N1/327
Filed: 1971-06-25
Abstract: 1357915 Weather picture recording apparatus AKADEMIE DER WISSENSCHAFTEN DER DDR 25 June 1971 29921/71 Heading H4F An arrangement for controlling the start-up of picture-recording apparatus for weather satellite transmissions utilizes the start-of-line signals for switching on and phasing. Received signals are demodulated at 1 and fed to a lamp modulator 2, the larger-amplitude line signals being selected at 3 and 4 to operate switch 6 to initiate the mechanical scan of the recording chart by lamp 2 in frame and line directions by motors 7, 8 respectively; holding stage 5 maintains this scan while line pulses are regularly received even if some line pulses are obscured by noise, and also opens gate 10 to allow subsequent line pulses to operate the line-scan clutch 11.
Patent GB-989687-A (GB)
Title: A method of obtaining core samples from earth formations
IPC: E21B49/02
Filed: 1962-08-31
Abstract: 989,687. Core drilling. INGERSOLLRAND CO. Aug. 31, 1962 [Aug. 24, 1962], No. 29928/63. Divided out of 989,686. Heading E1F. Cores can be obtained whilst drilling proceeds without involving withdrawal of the bit by removal of the core through the rear, open end of the core barrel of the drill, which is that of the referred to Specification 950,430.
Patent GB-423962-A (GB)
Title: Improvements relating to stocking and like suspenders
IPC: A41F11/04
Filed: 1933-10-30
Abstract: 423,962. Fastenings. WALKER, Ltd., T., WALKER, G. T., and WOOD, H. H., Birmingham Buckle Works, St. Paul's Square, Birmingham. Oct. 30, 1933, No. 30031. [Class 44] In a stud-and-loop type of stocking suspender the stud 4 is formed as a shallow body with a flat front face and undercut or grooved sides 5, the undercut or groove of each side extending to the front face. The stud extends only slightly from the loop 1, the end of which may be cranked. It may be secured to the tab 3 by prongs 9 and a washer, and the material of the tab may be doubled back to be engaged by the loop. British Specifications 363,402, 367,030, and 398,997, and U.S.A. Specification 1,832,548 are referred to.
Patent GB-336776-A (GB)
Title: Improved pulverizing machine
IPC: B02C13/26
Filed: 1929-10-03
Abstract: 336,776. Hirsch, P. A. Nov. 15, 1928, [Convention date.]. Impact pulverizers.-In a beater mill barriers or walls confine the material being ground to the peripheral zone of the beaters and within such zone one or more separating means in the form of vanes are located between or follow the beaters so as to throw back the heavier particles. As shown, three discs 47, 55 and 55a are mounted on a shaft 32 rotatable in a casing 11, the material being fed in to the first ring of beaters through a conduit 18 and orifice 19 and the ground material being discharged in a cold or preheated blast of air drawn in through a duct 28 by a fan 38, 41 and discharged through a conduit 26. Each disc is provided with pivoted hammers, the disc 47 which comprises two plates having a single row 50 pivoted between them whilst the discs 55, 55<a> are supplied with a double row 58, 59 and 58<a>, 59<a> respectively. The hammers 50 rotate in an annular ring formed by a diaphragm 67, wear plates 49 fixed to the disc, and a peripheral ring of sectional plates 94. The diaphragm 67 is perforated with an annular ring of ports, through which the ground material passes to the next ring of beaters 58, 59. The webs 61 in the ports may be axially inclined to throw heavy particles of coal &c. back to the beaters 50. The hammers 58, 59 similarly revolve in an annular ring formed by a lip 66 of the diaphragm 67, sectional plates 94 and lip 76 of an annular ring of ports which communicate with the third ring of hammers 58<a>, 59<a>. The webs 71 in these ports are also inclined in order to throw back heavy particles into the ring of beaters 58, 59. The coal &c. finally passes to the third row of beaters 58<a>, 59<a>, which rotate in a closed annular space, and is ejected against a ring of fixed vanes 81, Fig. 5, some of which are radially extended at 81<b> to direct the coal to the fan 38. The vanes 81<b> register with vanes 91 on a wear plate 90 so as to extend completely across the discharge passage. The annular rings of ports 61, 71 are held in the casing 11 by screws 64 and the casing is in halves with hinges at each side so that after removing one hinge pin the casing may be pivoted about the other. The sectional plates 94 are held in grooves in the casing by stop plates 95 (Fig. 2, not shown), and certain of these plates at the bottom of the casing are removed so that metal particles &c. may be discharged into recesses formed in the supporting feet 14. An outlet 20 is also formed in the conduit 18 for the discharge of metal particles from the beaters 50. The axial inclination of the webs in the ports may be varied and the webs may be of arrow head shape in plan. Specification 221,124 is referred to.