baber/WOPTO huggingface dataset:
Patent GB-1470962-A (GB)
Title: Extinguisher mountings
IPC: A62C13/78
Filed: 1973-04-12
Abstract: 1470962 Fire extinguisher mountings V E SENTINELLA 11 April 1974 [12 April 1973 18 Oct 1973] 17774/73 and 11384/74 Heading A4B A fire extinguisher mounting comprises a vertical spine 1, mounting means, e.g. arms 17, 18, extending forwardly from the top of the spine 1, an over-centre pivotally connected to the mounting means at a point 21 remote from the spine 1, force applying means 35 and 54 mounted at another  point on the over-centre linkage and arranged to bear on one end of the extinguisher, the overcentre linkage being movable through a dead-centre position between a first position in which the force applying means is vertically spaced from the mounting means and a second position in which it is less vertically spaced therefrom, one of the positions defining an unlocked position and the other defining a locked position in which the force applying means presses the opposite end of the extinguisher against an abutment, e.g. base 14, an operating handle 23 or 56 being connected to or forming part of the over-centre linkage to move it between the first and second positions. In one embodiment, Figs. 1, 2, the over-centre linkage comprises a first pair of links 24, 25 pivoted at one end 26 to the arms 17, 18 and rigid with the handle 23, and a second pair of links 30 pivoted to the opposite end 27 of the first links 24, 25, the second links 30 being bolted to the force applying means 35 which includes a pair of arcuate plates 36, 37 carrying rubber pads 43 which bear on the top end of the extinguisher. In another embodiment, Fig. 3, the force applying means 54 bears on the bottom of the extinguisher and the handle 56 forms a part of one of the links of the overcentre linkage.
Patent GB-1078095-A (GB)
Title: Thermoplastic graft copolymers
Inventor: HARDT DIETRICH
IPC: C08F285/00
Filed: 1966-04-22
Abstract: 50 to 85 parts of styrene and acrylonitrile in a ratio by weight of 6:4 to 8:2 are grafted on to 50 to 15 parts of a graft polymer (A) of vinyl chloride on an ethylene-vinyl acetate copolymer, said graft polymer having a k. value of 50 to 90 and comprising 30 to 75 parts of ethylene-vinyl acetate, copolymer containing 30 to 70% vinyl acetate, and 70 to 25 parts of vinyl chloride, under suspension polymerization conditions. Polymer (A) is dissolved in the styrene and acrylonitrile, a monomer soluble initiator, e.g. diisopropyl peroxy dicarbonate or diazodiisobutyro-nitrile, is added and the solution produced is dispersed in water.  Alternatively, a mixture of polymer (A) and part of the aqueous phase is stirred with a solution of the initiator in styrene and acrylonitrile prior to polymerization. Polymerization regulators, e.g. mercapto compounds, halogenated hydrocarbons and ketones, may be used and the polymers produced may be combined with polyvinyl chloride stabilizers, pigments and dyes.  Lauryl peroxide, benzoyl peroxide or azodiisobutyronitrile are used as initiators in the examples and methyl cellulose as protective colloid.
Patent GB-303771-A (GB)
Title: Improvements in or relating to the reproduction of pictures, views, scenes, images and the like
IPC: H04N3/04
Filed: 1927-07-05
Abstract: 303,771. Baird, J. L., and Television, Ltd. July 5, 1927. Television.-In a television system in which elementary lines in the picture are scanned in succession, the lines are closer together and of narrower width than elsewhere in the neighbour. hood of the centre of interest of the picture, where they may also overlap so as to give enhanced brightness. Thus a scanning disc 12, Fig. 3, may have large holes 14 with comparatively large radial spacing at one or both ends of the spiral, the remaining holes being small with small radial spacing. The picture area 2 may be shifted so that the closely spaced scanning lines 2<a> occur at any desired part of the picture. In a modification, Fig. 4, the whole picture is scanned in broad lines by holes 26 in one disc 24, and part of the picture is additionally scanned in fine lines by holes 22 in the disc 20, slots 28, 30 being provided to prevent interference between the actions of the two discs. In this case the finely scanned area is brighter than the remainder of the reproduced picture. The distance between the centres of the discs may be varied to adjust the location of the finely scanned region in relation to the picture. In a further modification, Fig. 5, the whole picture is coarsely scanned by the disc 32 and finely scanned by small mirrors 36 spirally arranged on spider arms 34. The disc and the spider are driven by a common belt 64, and the axle of the disc can be shifted by means of the electromagnet 54 so as to vary the location of the finely scanned part of the picture.
Patent GB-670302-A (GB)
Title: Improvements in or relating to two-way radio communication stations
Inventor: COLLINGS RUPERT HEDLEY PALK
IPC: H03B5/34
Filed: 1949-07-06
Abstract: 670,302. Monitoring transmitters; valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 28, 1950 [July 6, 1949], No. 17897/49. Classes 40 (v) and 40 (vi). The terminal station of a two-way radio communication system comprises a transmitter operating on one frequency and a superheterodyne receiver operating on another, and the receiver is provided with an additional local oscillator circuit which may be substituted for its normal local oscillator whereby the receiver is tuned to the operating frequency of the transmitter at the terminal station for monitoring the performance of the transmitter or receiver or both. As shown in Fig. 1 the receiver comprises R.F. amplifier 5, frequency changing stage 6, I.F. amplifier 7, and a demodulator or discriminator 8, local oscillations being provided by a harmonic amplifier 10 driven by a crystalcontrolled oscillator 11a or 11b selected by a switch 14. Alternatively, interchangeable plugin crystals may be used. With the oscillator 11a in circuit the receiver is tuned to the distant transmitter, substitution of the oscillator 11b tuning the receiver to the local transmitter for monitoring. Fig. 2 shows a suitable local oscillator circuit which includes two frequency determining circuits 12 and 13 each comprising a crystal in series with a parallel-tuned circuit, one or other circuit being selected by ganged switches 14a, 14b, and the output of the oscillator applied to the harmonic amplifier 10.
Patent GB-806899-A (GB)
Title: Improvements connected with electric lamps
Inventor: RUPPEL ERNST LUDWIG
IPC: F21V23/04
Filed: 1956-06-09
Abstract: 806,899. Switch cases; hand actuating devices for switches. TAYLOR STAMPING WORKS Ltd., E. June 6, 1957 [June 9, 1956], No. 17900/56. Class 38 (5). [Also in Group XL (a)] In electric lamps, particularly table lamps of the kind described in Specification 443,390, whose box-like base contains pressure-operated switch mechanism, the rim, top-surface or flange of the top surface area of the base is provided with lines or areas of a phosphorescent character indicating the area for the application of the operative pressure.
Patent GB-498001-A (GB)
Title: Process for the production of carbonaceous chamotte products
IPC: C04B35/18
Filed: 1938-06-16
Abstract: Carbonaceous chamotte products are obtained by baking in a reducing atmosphere a mixture of clay, which may include chamotte, together with waste coal washings.
Patent GB-1347523-A (GB)
Title: Magnetic bubble domain system
IPC: H03K19/168
Filed: 1971-05-28
Abstract: 1347523 Magnetic storage devices ROCKWELL INTERNATIONAL CORP 28 May 1971 [16 Oct 1970] 17930/71 Heading H3B A moving magnetic domain device has a propagation channel 14, Fig. 1, formed of magnetic material on a crystalline substrate 10, the propagation of the domains being due to repulsive forces between them. Fig. 3 shows a domain flip-flop having five channels 34, 36, 38, 40 and 42, formed by etching or deposition for example. Domains are nucleated by coils 30, and pass along channel 34 due to mutual repulsion. When the domains reach the junction of the channels they will continue along channel 36 if, as shown, the repulsive force of domains in channel 42 is greater than that of channel 40. If more domains are created in channel 40 by coils 47, propagation will flip to channel 38. Separate magnets may alternatively be used for the deflection. Materials.-The substrate is a monocrystalline material of formula JQ-oxide; the constituent J is at least one of the rare earths, or Y, Mg, Ca, Sr, Ba, Pb, Ca, Li, Na, K. The Q constituent is one or more of In, Ga, Sc, Ti, V, Cr, Mn, Rh, Zr, Hf, Mo, W, Nb, Ta, A. The valence of J plus the valence of Q equals the total oxide valence, examples being YALO 3 , CaTiO 3 , Gd 3 Ga 5 O 12  and Y 3 Al 5 O 12 . The magnetic domain material is also a JQ-oxide, where J is one or more of the rare earths or Y, and where Q is Fe, Fe and Al, Fe and Ga, Fe and In, Fe and Sc, Fe and Ti, Fe and V, Fe and Cr, Fe and Mn. Examples of this are garnets and orthoferrites such as GdFeO 3 , YFeO 3  and Y 3 Fe 3À8 Ga 1À2 O 12 .
Patent GB-1130864-A (GB)
Title: Improvements in or relating to change-speed mechanisms
IPC: D06F37/36
Filed: 1966-04-25
Abstract: 1,130,864. Change speed gears; friction Clutches. ENGINS MATRA. 25 April, 1966 [13 July, 1965], No. 17949/66. Headings F2C and F2D. [Also in Division D1] A two-speed gear for a washing machine comprises a driven pulley 190 fast with an axially movable clutch-plate 178 which is urged by springs 193 into frictional engagement with a disc 185 on a driving shaft 160 for high speed drive and for low speed drive is moved left, by energizing a stationary electromagnet 169, into engagement with a disc 181 driven from the shaft 160 through a belt or spur reduction gear 162, 163, 164, 166, 167, 168. The clutch-plate 178 is connected to the pulley 190 by tangential straps and the compression of the springs 193 may be adjusted by screws 177 to adjust the engaging pressure between the plate 178 and disc 185 and thus the torque transmitted therebetween. The plate 178 is fast with an armature ring 174. The driving electric motor 161 may be a two speed motor to provide a total of four output speeds. In Figs. 1-4 (not shown), the belt reduction gear is replaced by a spur gear.
Patent GB-785895-A (GB)
Title: Improvements in and relating to squirrel cage motors
Inventor: HILL WALTER
IPC: H02K17/18
Filed: 1955-06-21
Abstract: 785,895. Squirrel-cage constructions. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. June 22, 1956 [June 21, 1955], No. 17954/55. Class 35. In a double squirrel-cage whose lower slots K, M are staggered to improve the tooth-flux distribution, the ratio of width to length of the slot-openings to the top row is the same, so that they have the same impedance and so carry the same current without the use of series connections. As shown,
Patent GB-817274-A (GB)
Title: Improvements in and relating to cooking stoves
Inventor: KITSON JOSHUA WILSON
IPC: F24C15/08
Filed: 1955-06-22
Abstract: 817,274. Cooking stoves. ENGLISH ELECTRIC CO. Ltd. June 22, 1956 [June 22, 1955], No. 18027/55. Class 126. The eye level oven 10 of a cooking stove is supported by a frame 11 secured to a base frame 15 by gussets 16 located wholly within the body of the cooker. The body of the cooker is divided into an upper warming cupboard 13 and a storage compartment 14, and the base frame 15 of angular section steel members is located between the compartments. The channel section frame members 11 are joined to the base frame 15 at its back corners and the base surfaces of the members 11 and 15 are coplanar to support the side panels of the cooker. Gussets 16 are secured to the base frame 15 and support frame 11 by flanges. The gussets 16 are located within the upper compartment 11 and their bases form an additional support for the side panels. Front and back panels secured to the support frame 11 form the neck of the cooker. The frame 11 does not extend to the base of the cooker. In a modification, Fig. 3, the support frame 11 extends further down the cooker, and gussets 20 within the lower compartment join the base frame 15 to the frame 11. The oven 10 or its base frame 22 is supported from the frame 11 by triangular members 21.
Patent GB-434556-A (GB)
Title: Improvements relating to controlling apparatus for electric motors
IPC: H01H19/56
Filed: 1934-06-19
Abstract: 434,556. Drum and rocking - bar controllers. SMITHSON, J. G., and SMITHSON & CO., Ltd., J. G., Lifford Lane, King's Norton, Birmingham. June 19, 1934, No. 18094. [Class 38 (iii)] A controller comprises drum contacts e mounted on the same shaft a as contactor cams b, and situated in the spaces normally necessary between the cams. The drum contacts may be carried by cylindrical elements d mounted either directly on the shaft a or on bosses c formed with the cams b. The elements d may consist of semi-cylindrical parts secured by transverse bolts. The contact fingers co-operating with the drum contacts may be situated between the contactor levers actuated by the cams, or on the opposite side of the shaft.
Patent GB-1005714-A (GB)
Title: Improvements relating to mobile power units
Inventor: MARSHALL GEOFFREY WILSON
IPC: B60K17/08
Filed: 1961-05-18
Abstract: 1,005,714. Change speed gear. HALIFAX TOOL CO. Ltd. May 15, 1962 [May 18, 19611, No. 18104/61. Heading F2D. [Also in Division B7] In a mobile power unit comprising a wheeled chassis which carries a diesel or gas turbine engine driving an output shaft employed to provide electric, pneumatic or hydraulic power, the output shaft 4 is coupled by a synchronized dog-clutch 9 to a shaft 3 which is driven from the engine through a friction clutch and carries a pinion 12 driving a pinion 13 on the lay-shaft 14 of a change-speed mechanism within a casing 8. The shaft 3 may alternatively drive the change-speed mechanism through a disengageable coupling. A pinion 23 on the mainshaft 15 of the change-speed mechanism is connected through a transfer pinion (not shown) to a pinion 24 driving the input shaft of a differential axle carrying the rear wheel of the chassis. Specification 1,005,715 is referred to.
Patent GB-501713-A (GB)
Title: Improvements in the manufacture of pistons
IPC: B23P15/10
Filed: 1938-06-21
Abstract: 501,713. Making pistons. MAHLE, H. June 21, 1938, No. 18372. Convention date, June 25, 1937. [Classes 83 (ii) and 83 (iv)] Pistons with longitudinal ribs 3, Figs. 2 and 3, extending up to the piston head and serving for forming and reinforcing the bearings, are made by first pressing a block of metal with the ribs 3 and then expanding same at 8 by forcing mandrils into the sides to form the bearings. An internal die shown in chain lines is employed. The external die may be the same for the first pressing operation and the piercing operation.
Patent GB-868538-A (GB)
Title: Apparatus for vacuum degasification of molten metals
IPC: C21C7/10
Filed: 1959-05-29
Abstract: 868,538. Degasifying molten metals. HERAEUS G.m.b.H., W. C., and RUHRSTAHL A. G. May 29, 1959 [May 30, 1958], No. 18403/59. Class 72 Apparatus for degasifying molten metals in which the melt is taken from a container into a degasification chamber and then returned to the container comprises a degasification chamber the volume of which is less than one fifth of the volume of metal to be treated. As shown, a vacuum degasification chamber 2 is supported above a ladle 1 and the metal passed through the chamber by means of a gas-lift in a pipe 3 and a return pipe 4. In an example 10 cu. in. of metal were degassed in 10-12 minutes in a chamber of 1 cu in. in volume.
Patent GB-1007753-A (GB)
Title: Olefinic hydrocarbon polymer compositions
IPC: C08K5/098
Filed: 1962-05-14
Abstract: A polymer composition of improved dyeability comprises a crystallizable olefinic hydrocarbon polymer, a carboxylic acid salt or chelate compound of nickel, cobalt, chromium, aluminium, titanium, zirconium or mixed rare earth metals, and a polymeric modifier which is an organic condensation polymer.  Preferably the carboxylic acid salt or chelate compound is present in an amount sufficient to give a metal concentration of 0.05 to 0.5% in the composition. The crystallizable olefinic hydrocarbon polymer may be a polymer of styrene, ethylene, propylene, butylene, 4-methyl-1-pentene, 3-methyl-1-butene, 4-methyl-1-pentene, 3-methyl-1-butene, allybenzene or vinylcyclohexane. The condensation polymer may be a polyester, a polyamide, a poly-(ester-amide), a polyurethane or a polyurea or combinations thereof, e.g. a poly-(amide-urethane).  In the examples the metal chelate compounds or salts used are the nickel salt of 1:1-[2-ethylhexanoic acid-perlargonic acids]; nickel carbonate; nickel stearate; cobalt acetate; cobalt perlargonate; zirconium laurate; nickel acetate; nickel acetoacetate and aluminium perlargonate.ALSO:A polymer composition comprising a crystallizable olefinic hydrocarbon polymer, a carboxylic acid salt or chelate compound of nickel, cobalt, chromium, aluminium, titanium, zirconium or mixed rare earth metals and a polymeric modifier which is an organic condensation polymer, is printed or dyed with a dyestuff capable of undergoing chelation.  The polymer composition may be in the form of fibres, yarns, film or shaped objects.  The crystallizable olefinic polymer may be a polymer derived from styrene, ethylene, propylene, butylene, 4-methyl-1-pentene, 3-methyl-1-butene, allyl benzene or vinylcyclohexane and the condensation polymer may be a polyester, a polyamide, a polyurea, a poly (ester-amide) or a polyurethane or combinations thereof.  The dyes mentioned are a -hydroxyanthraquinone compounds, orthohydroxyazo compounds and compounds of general formula <FORM:1007753/D1-D2/1> where A is a monocyclic benzene nucleus containing <FORM:1007753/D1-D2/2> group where R is hydrogen, methyl or ethyl. The dyes employed in the examples are 2-(4-acetamidophenylazo)-4 methyl-phenol; 4-hydroxy-1-methyl-3-(m-nitrophenylazo) carbostyril; Omega Chrome Brilliant Blue; Quinazarin; Omega Chrome Aurine G.L.; Omega Chrome Brown; Omega Chrome Red B and Alizarin Red S.  Dyes mentioned but not used in the examples are 1-(4-hydroxyethylanilino-4,5-dihydroxy-8-nitro-anthraquinone; 1-amino-4,5-dihydroxy-2-methoxy-anthraquinone and 1-(2-hydroxy-5-sulphonamidophenylazo)-2-hydroxynaphthalene.
Patent GB-1452546-A (GB)
Title: Growing epitaxial layers
IPC: H01L33/00
Filed: 1974-04-26
Abstract: 1452546 Growing epitaxial layers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 26 April 1974 [1 May 1973] 18434/ 74 Heading BIS  Epitaxial layers of semiconductor material, e.g. III-V compounds, are grown on a flat surface of a substrate from a solution which contains the semiconductor, the substrate being provided in a recess of a substrate holder which closes the lower side of a reservoir containing the solution and in which the flat surface of the substrate can be moved below or away from the solution present in the reservoir by a relative displacement of the reservoir relative to the substrate holder and in such a manner, that the flat surface of the substrate is brought at adesired height relative to the lower side of the reservoir, that solution from the reservoir is provided on the substrate, and that a quantity of solution of an adjustable height -is left on the substrate when the reservoir is removed relative to the substrate. As shown in Fig. 3 suitable apparatus comprises a reservoir holder 1 comprising two reservoirs 2, 3 for the solution 4, 5 containing semiconductor material. A substrate holder 6 comprises a continuous aperture 7 in which a support 8 for a substrate is provided to be adjustable by means of member 12 which is wedge shaped at 13. The reservoir holder also comprises a compartment 14 in which substrates 9 to be treated are stored. Parts 1, 6, 8 and 12 are preferably made from pure graphite and heated in a quartz tube furnace in which the substrate holder is held stationary while the reservoir holder and adjusting member are adjustable from outside the furnace.
Patent GB-798672-A (GB)
Title: Improvements in and relating to the manufacture of leather or fabric faced buckles, buttons, and like articles
IPC: A44B11/00
Filed: 1955-06-27
Abstract: 798,672. Moulding buckles, buttons, &c. SHENDEREY, M. May 15, 1956 [June 27, 1955], No. 18490/55. Class 87(2). [Also in Group VII] A leather or fabric faced buckle or button without a core is formed by sticking a sheet of oversize leather or fabric a to one face of an oversize sheet of thermoplastic b, e.g., polyvinyl chloride, of such thickness that it will retain a moulded shape, softening the latter by heat, and displacing the two sheets into a mould to form a raised leather or fabric covered surface on one side of the sheet in the shape of the buckle in relief and a corresponding recess c on the other side. After moulding the excess material is trimmed off with a knife, the cutting edge of which is shaped to correspond to the edges of the raised contours of the finished buckle. An additional layer of thermoplastic d may be welded over the hollow interior before the cutting operation. Specification 755,327 [Group VII] is referred to.
Patent GB-851536-A (GB)
Title: Preparation of rubbery interpolymer derivatives
IPC: C08F8/20
Filed: 1957-06-12
Abstract: Rubber derivatives of a solid interpolymer of 70-90% of a isoolefin containing 4 to 8 carbon atoms and a terminal methylene group copolymerized with 1-30% of a polyolefinic hydrocarbon containing 4 to 8 carbon atoms are made by dry-mixing said interpolymer with 1-25 parts per 100 parts of interpolymer of (1) an N-bromo-N-chloro hydantoin of the formula:  <FORM:0851536/IV(a)/1> wherein either R may be hydrogen or an alkyl radical and when R is an alkyl radical at least one R contains from 1 to 8 carbon atoms and one X is bromine and the other X is chlorine or (2) a mixture of an N-bromohydantoin of the above formula wherein R is a defined as above and where one X is bromine and the other is bromine or hydrogen and an N-chlorohydantoin of the above formula where R is as defined above and where one X is chlorine and the other is chlorine or hydrogen, said mixture containing said N-bromo-hydantoin in amount substantially equivalent to 90-40% of N,N1-dibromo-5,- dimethyl hydantoin and said N-chloro-hydantoin in amount substantially equivalent to 10-60% of N,N1-cichlori-5,5-dimethyl hydantoin, and then heating the hydantoin-interpolymer mixture above 170 DEG F.  The isoolefin may be isobutylene, 3-methyl butene-1, 4-methyl pentene-1, 2-ethyl butene-1, 4-ethyl pentene-1 or a mixture of such isoolefins.  The polyolefin may be butadiene, isoprene, dimethallyl, cyclopentadiene, a triolefin e.g. fulvene, a tetraolefin or mixtures thereof.  The isoolefin-polyolefin interpolymer may also contain other interpolymerized monomers such as styrene, chlorostyrenes, alkyl styrenes, or acrylyl or methallyl acid chloride.  The interpolymers preferably contain from 1 to 5 mol per cent unsaturation.  The N-bromo-N-chlor hydantoin may be the 5,5-dimethyl, the 5-methyl-5-ethyl or 5-methyl -5-isobutyl alkyl derivatives.  The N-bromo-hydantoin may be N-bromo- 5,5-dimethyl or -5-methyl-5-ethyl hydantoin or 1-3-dibromo-5,5-dimethyl -5-methyl-5-ethyl or -5-methyl-5-isobutyl hydantoin or 1,3-dibromohydantoin.  The N-chloro-hydantoin may be N-chloro-5,5-dimethyl or -5-methyl-5-ethyl hydantoin or 1,3-dichlorohydantoin or 1,3 dichloro-5,5-dimethyl, -5-methyl-5-ethyl or -5-methyl-5-isobutyl hydantoin.  The halohydantoins may be mixed with the interpolymers in the presence of compounding ingredients such as carbon black and finely divided silica.  The interpolymer-halohydantoin derivatives may be formed into compositions with calcium silicate stabilizer, natural rubber, alkylated arylamine antioxidant, carbon black, zinc oxide, petroleum base softener, benzothiazyl disulphide, diorthotolyl guanidine and sulphur and these compositions may be vulcanized.  Specifications 701,453 and 739,610 are referred to.