baber/WOPTO huggingface dataset:
Patent GB-1231993-A (GB)
IPC: C30B25/02
Filed: 1969-10-07
Abstract: 1,231,993. Depositing silicon epitaxially. RCA CORP. 7 Oct., 1969 [13 Jan., 1969], No. 49246/69. Heading C1A. [Also in Division C7] An epitaxial silicon layer is deposited on a substrate 20 which may be of silicon, positioned on a heating element 18, by flowing silane and an inert gas, e.g. argon, helium, neon or nitrogen over the heated substrate. The substrate and heater 18 are so arranged, e.g. as shown against a wall 19, that their upstream surfaces are shielded from the gas. The heater may be a resistance heater or a silicon carbide-coated graphite block heated by a R.F. coil 17. The reaction chamber may be surrounded by a cooling chamber 16, and it may be first purged by flowing hydrogen therethrough. In Example 2, after treatment of the substrate in a flow of hydrogen at 1200‹ C., the deposition is conducted at 800‹ C. with a flow rate of 20 1. )min. and a silane concentration of 0À01-0À2 volume per cent in an inert gas.
Patent GB-1232136-A (GB)
IPC: H01K9/08
Filed: 1969-06-05
Abstract: 1,232,136. Lamps for vehicle headlights. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 5 June, 1969 [8 June, 1968], No. 28562/69. Heading F4R. [Also in Division H1] In a halogen filament lamp for a vehicle headlight having a main beam filament and a dipped beam filament 7 arranged eccentrically to, and with their longitudinal axes in the longitudinal direction of, the axis 17 of the lamp, the dipped beam filament is partly surrounded by a lightintercepting screen 9 within the lamp bulb. This screen covers an arc in a plane at right angles to the longitudinal axis of the lamp, which subtends an angle of between 165 and 180 degrees at the axis of the lamp. The side of the screen facing the dipped beam filament comprises a reflecting surface, and the screen is arranged between the dipped light filament and the wall of the tubular part of the lamp envelope, with a part c, d curving towards the lamp axis 17 between the two filaments of such a shape that rays 25 from the dipped beam filament are reflected 27 at an angle of at most 60 degrees with the lamp axis 17 in a direction away from the parabolic reflector 11 of the lamp, the remainder of the screen being arranged to reflect the light rays so that they do not pass through a cylindrical region coaxial with the lamp envelope and situated between the filaments and having a maximum radius of 2À5 times the dipped beam filament diameter.
Patent GB-1239445-A (GB)
IPC: C02F5/08
Filed: 1968-06-17
Abstract: 1,239,445. Inhibition of scale formation. BETZ LABORATORIES Inc. June 17, 1968 [June 22, 1967], No.28711/68. Heading C7E. A composition, which inhibits scaling by alkaline-earth metal compounds and aluminium silicates in liquids containing these, comprises a water soluble salt of Fe, Zn, Ni, Co, Cd, Cu, or Al and an adsorbent, which is in which X, Y = H or C 1 -C 4  alkyl, a water soluble salt of this acid, lignin, lignosulphonate, starch, sodium mannuronate, agar-agar, a poly-electrolyte containing the group wherein R = nitrile, amide, carboxyl or carboxylalkyl, and having MW 5, 000-15, 000, 000, or a water soluble salt of such poly-electrolyte. Exemplified metal salts are ZnBr 2 , ZnI 2 , Zn(NO 3 ) 2 , Fe(NO 3 ) 2 , FeCI 2 , FeCI 3 , Ni(NO 3 ) 2 , Ni(ClO 4 ) 2 , CoCl 2 , CoCl 3 , CdCl 2 , Cd(ClO 3 ) 2 , CuCl 2 , Cu(NO 3 ) 2 , AlCl 3 , or preferably ZnCl 2 . The adsorbent is preferably amino trimethylene phosphonic acid or a salt thereof; the composition may be added to impure water or petroleum to inhibit deposition of scale therefrom. Reference has been directed by the Comptroller to Specifications 1, 073, 888 and 1,133,382.
Patent GB-1239547-A (GB)
IPC: G01N1/12
Filed: 1970-01-31
Abstract: 1,239,547. Sampling. LAND PYROMETERS Ltd. 31 Jan., 1970, No. 4771/70. Divided out of 1,173,849. Heading B8N. [Also in Division C7] A sampling device, for example, Fig. 1, comprises a metal mould 1 closed at both ends mounted in one end of a holder tube 5 of insulating material, the metal mould having a slot or hole 4 corresponding to a slot or hole 6 in the holder tube. The mould is preferably of tubular steel and the holder of cardboard which may be coated with resin bonded silica or ceramic fibre. A seal 7 which will melt or burn away when placed in molten metal, prevents the intake of slag into the mould when the device is plunged into a molten metal bath. The seal 7 may be of paper, aluminium or mild steel. The dimensions of the mould (Figs. 2 and 3, not shown) may be such as to produce two metal samples of differing dimensions. This may be achieved by the use of a cap on the lower end of the mould having a blind bore therein (Fig. 2) or alternatively means may be provided in the mould (Fig. 3). The device may be fitted with an external thermocouple. The mould may contain deoxidizing material such as aluminium.
Patent GB-1256827-A (GB)
IPC: G03F3/10
Filed: 1970-02-04
Abstract: 1,256,827. Photo-polymerizable processes. E. I. DU PONT DE NEMOURS & CO. Feb.4, 1970 [Feb.5, 1969], No.5276/70. Heading G2E. A photographic process for producing coloured images comprising (i) laminating to a receptor a photo-polymerisable layer coated on a support which transmits actinic radiation; the receptor having greater adhesion for the layer than the support, (ii) imagewise exposing the layer through the support to render the exposed areas less adhesive, (iii) removing the support and (iv) applying coloured powder which adheres only to the unexposed areas. Multi-coloured images and proofs are produced by repeating the above steps; laminating the photo-polymerizable layer to the coloured image image-wise exposing through the support to the desired images, removing the support and applying a differently coloured powder. 3-D effects may be enhanced by using intermediate photo-polymerizable layers which are not powder developed. A photo-polymerizable layer may also be applied over the final image and uniformly exposed. Alternatively, an aluminium recepter may be used and the coloured image heated and any photo-polymer remaining washed off to leave a dyed image on an aluminium support. Specified photo-polymers are vinyl monomers in polymeric binders (e. g. as Specifications 905, 700 and 1, 055, 186) and polymers having cinnamic, chalcone or benzophenone groups or polymers of Specifications 1, 110, 050 and 1,128, 850.
Patent GB-1264177-A (GB)
IPC: B31B1/90
Filed: 1969-03-05
Abstract: 1,264,177. Package having a tear strip. MOLINS MACHINE CO. Ltd. and J. GAGG. 4 March, 1970 [5 March, 1969], No. 11758/69. Heading B8C. A batch of material or an article such as a cigarette packet is wrapped in a tear-resistant plastics wrapper comprising two portions 2A, 2B secured to a tear-strip TS overlapping their adjacent inner side edges by a joint which is substantially moisture proof and weaker than the tear strength of the wrapper. The wrapper may be formed by passing a web 2 of plastics sheet e.g. P.V.C. over rollers 3-6 to a grooved roller 11 which co-operates with a spring-loaded knife 10 to form two webs 2A, 2B which are passed over a horizontal plate 9 to receive a tear strip web 17 fed from a reel 16 to sheet 2 via a waxing roller 19, the webs thereafter being cut into wrapper lengths by stationary and rotating knives 23, 22. The wrappers WB are then applied in a known manner to a cigarette packet CP by a wrapping mechanism WM and a slotted bed 24. The knife 10 may be raised once in every wrapper length from web 2 via a cam 14 to provide bridged webs 2A, 2B which may be applied to cigarette packets having hinged lids. The portions may be formed from separate webs which may be of different colours. The wrapper is slit (30, Fig. 4) on each side of a tear-strip end to facilitate initial grasping thereof.
Patent GB-1264569-A (GB)
IPC: H04B1/58
Filed: 1970-05-27
Abstract: 1,264,569. Anti side-tone circuits. H. G. LASSAIGNE, and S. A. JEANCLAUDE. 27 May, 1970 [5 June, 1969], No. 25453/70. Heading H4R. An anti side-tone network comprises a symmetrical transistor circuit 10, Fig. 4, which exhibits a negative impedance between the terminals 10 1  and 10 2 , which impedance is dependent on a balancing impedance 15. As an anti side-tone circuit the two wire line is connected to terminals 10 1  and 102 with the two pairs of the four wire lines connected across terminals 10 1 , 10 3 , and 10 2 , 10 3 , respectively. Modifications of the coupler are described using further transistors to control the impedance presented by the circuit to the lines, Figs. 7 and 8 (not shown). Also described are two intercommunication systems using the couplers of the invention at each station, one of system Fig. 9 allowing intercommunication between any stations of the system while the other system, Fig. 10, allows intercommunication only between a master station, lines head, and any of the other stations.
Patent GB-1264743-A (GB)
IPC: G03G15/05
Filed: 1970-04-13
Abstract: 1,264,743. Selective printing. ING. C. OLIVETTI & C. S.p.A. 13 April, 1970 [15 April, 1969 (2)], No. 17518/70. Heading B6F. An electrolytic recording apparatus comprises one or more anode-cathode pairs of electrodes 2, 2<1>, the two electrodes of each pair being close together and on the same side of the electrosensitive substrate 7. The substrate has an electrolyte which is applied by a wetting device 3 and pressure device 8. The wetting device 3 comprises a duct 4 with a slit 5 and connected by a pipe 6 to a reservoir containing the electrolyte. This is an aqueous solution of polyvinyl alcohol mixed with an aqueous solution of potassium iodide, potassium bromide and thiourea. The pressure guiding device 8 is composed of a pressure support 8<1> of insulating material and urged together with the wetting device towards the paper 7. Only the wetting device contacts the paper. As shown in Fig. 4, the paper 7 is fed past the recording head but in (Fig. 7, not shown) the head is guided across a web in letter-space direction.
Patent GB-1265749-A (GB)
IPC: H01G13/00
Filed: 1969-05-29
Abstract: 1,265,749. Electrolytic capacitors. STANDARD TELEPHONES & CABLES Ltd. 21 May, 1970 [29 May, 1969], No. 27163/69. Heading H1M. A method of manufacturing an electrolytic capacitor comprises coating a piece of valve metal with a layer of dielectric material by a vapour reaction process in which the piece of valve metal plays no chemical part and filling defects in this layer by anodization. The latter step may take place after assembly of the capacitor, utilizing the working electrolyte. An aluminium foil may be continuously coated with titanium dioxide by vapour phase hydrolysis of a titanium halide, alkoxide or organotitanium compound, the coated foil heat-treated, defects removed by anodizing in e.g. ammonium citrate and the foil further heat treated. Conditions of deposition may be such that titanium dioxide with an oxygen deficiency is produced, and this is then fully oxidized, e.g. by the anodization process. A porous block or layer of aluminium on a substrate may be used instead of a foil. The dielectric layer may alternatively be vanadium oxide, niobium oxide or barium, strontium or calcium titanate.
Patent GB-1288014-A (GB)
IPC: B01F13/08
Filed: 1971-05-06
Abstract: 1288014 Magnetic stirrers H H GOLDSTAUB 6 May 1971 13565/71 Heading B1C [Also in Division H5] Apparatus for stirring and heating a material contained in a vessel 10 comprises a housing 1 of non-magnetic sheet material having a flexible pocket 9, at least partially of electrically insulating yarn to receive the vessel 10, an electric heating element 12, a member 7 rotatable by a motor 3, and a stirring member 11 in the vessel; the members 7, 11 may be magnets or of magnetisable material arranged so that the member 11 is rotated by rotation of the member 7. The latter may be vertically adjusted. The pocket may be made partly of the insulating yarn (e.g. glass fibre) and partly of the heating element.
Patent GB-1288784-A (GB)
IPC: C07C1/00
Filed: 1969-11-12
Abstract: 1288784 Oxidative dehydrogenation ESSO RESEARCH & ENG CO 12 Nov 1969 [2 Dec 1968 (2)] 55331/69 Heading C5E [Also in Division C2]  Organic compounds are dehydrogenated in the vapour phase at above 700‹ F. by reaction with a gas comprising a sulphur oxide, or a sulphur oxide and oxygen, which is initially free of H 2 S in the presence of a catalyst comprising metals, salts, oxides or mixtures of oxides of groups IIa, IVa, IVb, Vb, VIb or VIIb, of surface area up to 110 m.<SP>2</SP>/g. or Al 2 O 3  of surface area 0À6-5 m.<SP>2</SP>/g. Minor amounts of Pd, alkali metals or alkaline earth metals, or salts, oxides or hydroxides thereof may be present in the catalyst. An inert gaseous diluent, e.g. He, N 2 , CO, CO 2 , CH 4  and/or steam may be used. Examples describe the dehydrogenation of ethylbenzene to styrene, and the dehydrocyclization of n-hexane to benzene (Ex. 14). Other conversions mentioned are: isopropylbenzene to α-methylstyrene, cyclohexane to benzene, vinylcyclohexane or vinylcyclohexene to styrene, ethane to ethylene, butane to butenes or butadiene, butene to butadiene and methylbutane to isoprene.
Patent GB-1289579-A (GB)
IPC: B60T8/18
Filed: 1970-08-20
Abstract: 1289579 Load-responsive fluid pressure brakes ROBERT BOSCH GmbH 20 Aug 1970 [21 Aug 1969] 40063/70 Heading F2F A load-responsive brake pressure regulator for a motor vehicle has two pressure responsive members 3, 4 of which member 3 is subject to brake pressure upstream of the regulator and member 4 actuates a valve 6 controlling flow of fluid to brake cylinders downstream thereof, the members 3, 4 being interconnected by a lever 9 having a variable position fulcrum adjustable in response to vehicle static loading by a member formed by eccentric shafts 12, 19 and an axially movable sleeve 15, the said member being adjustable against a prestressed compression spring (28) mounted therein between an end (26) of a bush (27) and a cover (29) secured to the sleeve 15. Shaft 19 is coupled to a vehicle axle 42 by way of a linkage 41 and lever 40 and shaft 12 is connected by a lever 20 to a double piston 21 movable in a fluid-filled cylinder 22 to act as a movement damper.
Patent GB-1295068-A (GB)
IPC: G01B21/06
Filed: 1969-12-02
Abstract: 1295068 Measuring displacement photoelectrically PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 2 Dec 1969 [5 Dec 1968] 58812/69 Heading G1A [Also in Division G4H] An apparatus for measuring the displacement of a member attached to a grating 1 (Fig. 1) light passing first through the grating in one direction and then being reflected back through the grating to photo-detectors 11, 12 is modulated by a radiation modulator receiving after frequency division in a divider 51 an A. C. signal from a source 50, the signal from source 50 also being fed to an electric circuit 13 processing signals from the photo-detectors which represent the displacement, the high frequency signals giving a finer resolution of the measurement. As described light of frequency w from a source 2, plane polarized by a polarizer 3 and then circularly polarized in a #/4 plate 4 is fed to crystals 5, 6 the electrodes of which receive modulating signals A o  sin # t and A o  cos # t so that the light fed to a further #/4 plate 7 has two components, a circularly polarized beam 18 of angular frequency w and a circularly polarized beam 19 of angular frequency w-#. #/4 plate 7 converts them to two beams polarized at right angles to each other and having a frequency difference #. The beams are divided by the grating 1 into sub-beams, the beam of zero order being absorbed by a coating 17 on reflective mirror 9, the beams of order +1 being reflected without rotation of the direction of polarization and the means of order -1 being reflected after rotation through 90 degrees by #/4 plate 8. The reflected beams pass through the grating to a beam splitter 10 which reflects the light having one direction of polarization and transmits light having a direction of polarization 90 degrees displaced from this reflected light so that both the transmitted and reflected light beams fed to detectors 12, 11 respectively have a component of frequency w and a component of frequency w-#. Each zero crossing of the output signals from detectors 11, 12 the signals having the forms I 2  = const + a sin (# t-8 # z/p) and I 2  = const + b sin (# t+8 # z/p), represents a displacement P/8 of  where p is the period of the grating and the phase of these signals relative to the clock pulses from source 50 represents a fine measure of the displacement a counting pulse being generated whenever the outputs of source 50 and detector 11 or 12 have a predetermined relationship. For example if the divider 51 divides by 5 a measuring step of 1/5ÀP/8  = P/10 is obtained. The divisor may be chosen to convert a measurement step based on inches into one expressed in millimetres.
Patent GB-1296434-A (GB)
IPC: E21B7/14
Filed: 1970-02-04
Abstract: 1296434 Making fhermic lances FASSLER 4 Feb 1970 [21 Feb 1969] 5306/70 Heading B3A [Also in Divisions C7 D1 and F4] In a thermic lance for boring hard materials, (see Division F3-F4) a twisted wire cable 1 is surrounded by a fusible sheath 2 with a force fit (defined). The sheath 2 is gastight for oxygen to be passed along inside it to cause combustion of the end part of the previously heated cable and sheath. The sheath may be a tube into which the cable is forced or which is shrink-fitted around the cable or which is anchored to the cable by helical grooves (6), Fig. 5 (not shown), pressed into the sheath from outside. Alternatively, the sheath may be a sheet or strip of metal wrapped around the cable and having its longitudinal edges welded to form a tube. In another embodiment, the sheath is a metal tube formed around the cable by extrusion through a die.
Patent GB-1296520-A (GB)
IPC: F16B39/08
Filed: 1970-03-31
Abstract: 1296520 Locking SOC ANON DE RECHERCHES DE MECANIQUE APPLIQUEE 31 March 1970 [27 March 1969] 15308/70 Heading F2H A casting 1 having a threaded bore 2, a stud 3 and a nut 4 are locked together by a polyvinylidene fluoride sleeve 5a heat shrunk on to the assembly. The casting may be provided with flats 6 (Fig. 2, not shown).
Patent GB-1303085-A (GB)
IPC: F24C5/16
Filed: 1970-06-15
Abstract: 1303085 Wick burner; extinguishing oil stoves ALADDIN INDUSTRIES Ltd 9 June 1971 [15 June 1970] 28794/70 Headings F4T and F4W  In a wick-fed kerosene heater a chimney 1 is supported loosely on a burner gallery 4, and an extinguisher disc 9 is secured on an arm 10 pivoted on a shallow pressing 7 on the chimney and held in an inoperative position (shown in full lines) by a catch 17 pivoted to the pressing at 18 such that on a tilting movement of the chimney, relative to the gallery 4, towards or away from a member 22 the catch is rotated clockwise to its broken line position releasing the extinguisher disc 9 which is urged, by a spring 15, into an extinguishing position (shown in broken lines). On tilting the chimney away from the member 22a, nose 20 on the catch interacts with an aperture 21 in the member 22 and, on tilting the chimney towards the member 22 an inclined section 24 on the catch interacts with the member 22. A handle 13, connected to the arm 10, is provided to enable the disc 9 to be rotated to its inoperative position tensioning the spring 15 and allowing the catch 17 to hold a pin 11 located in one end of the arm 10.
Patent GB-1305139-A (GB)
IPC: B66D1/14
Filed: 1970-12-01
Abstract: 1305139 Winches COAL INDUSTRY (PATENTS) Ltd 29 Oct 1971 [1 Dec 1970] 56999/70 Heading B8B A winch including a drum 12 selectively connectible to a drive shaft 6 through a dog clutch, comprises means interconnecting the clutch and a brake for the drum, such that the brake must be applied before the clutch can be disengaged. The interconnecting means comprises a ratchet plate 104 pivotable with a shaft 106 upon operation of the brake, a connecting rod 100 pin and slot connected to the plate 104 at one end and engageable at its other end with a recess in a cam component 96, and a pawl rod 108 engageable at one end with ratchet teeth on the plate 104 and engageable at its other end with a further cam component 98, the components 96 and 98 being pivotable with a tube 92 upon operation of the clutch by a lever 20. When the brake is applied and the clutch disengaged, the connecting rod 100 is held clear of the recess in the cam 96 and the profile of the latter is such that the rod 100 is prevented from entering the recess until the clutch is moved into the engaged position, whereafter the clutch cannot again be disengaged until the rod 100 is retracted by application of the brake. The cam 96 is contoured such that the pawl rod 108 is moved to lock the ratchet plate 104 to prevent release of the brake unless the clutch is completely either engaged or disengaged. The brake includes shoes applied to opposite sides of the drum through a linkage system operable by foot and/or handle, the handle incorporating a ratchet lock mechanism. The frame in which the winch is mounted includes guards 40<SP>1</SP> for the drum cable and cups for receiving winch anchoring props. The drum includes a passage for the cable to pass from a winching surface to the extension of the drum flange for engagement with clamping blocks. In another embodiment, a further winch arrangement is secured to the original hydraulic motor driven winch and the clutch operating links are coupled such that as the clutch for one drum is engaged the other drum clutch is disengaged.
Patent GB-1306204-A (GB)
IPC: B41F7/26
Filed: 1971-02-09
Abstract: 1306204 Dampening apparatus TIMSONS Ltd 21 Jan 1972 [9 Feb 1971] 4218/71 Heading B6C An offset lithographic printing press includes a plate cylinder 1 which is damped by a forme roller 9, a hydrophilic-surfaced roller 8 and a fountain roller 7, the fountain roller carrying at least one pliable water-retentive protuberance 10 which picks up water, alcohol or other dampening fluid from a fountain 6 and transfers it to the roller 9. Preferably the or each protuberance is an axial or helical strip of foam rubber or plastics material, and the fountain roller is otherwise of steel. A wiper 11 may contact the or each protuberance, and remove excess water. The fountain roller may be driven at a predetermined one of a plurality of speeds, to regulate the amount of water supplied to the plate cylinder.
Patent GB-1310082-A (GB)
Title: Cladding alloys and clad metal
IPC: C22C5/00
Filed: 1971-10-21
Abstract: 1310082 Gold based alloys LEACH & GARNER CO 21 Oct 1971 48892/71 Heading C7A An alloy for cladding electrical wires comprises in weight percent: - 40À0 to 60À0 % gold  9À6 to 14À4 % palladium 4À8 to 7À2 % silver 19À2 to 28À8 % copper 4À8 to 7À2 % nickel 1À6 to to 2À4 % zinc It is particulary preferred to use this cladding alloy on a core compriser of 1À80 to 2À05 % beryllium 0À2 to 0À6 % nickel and/or cobalt the balance being copper and incidental impurities. A barrier metal comprising at least 99% nickel may be incorporated between the core and the cladding. Such clad metal is particularly suited for spring contacts, the cladding forming between 5 and 15% by weight of the composite.