baber/WOPTO huggingface dataset:
Patent GB-1020129-A (GB)
Title: Process for separation of ferrous chloride from gaseous reaction mixtures
IPC: C22B34/12
Filed: 1964-11-18
Abstract: Ferrous chloride is separated from gaseous reaction mixtures resulting from the chlorination of ferro-titaniferous ores or slags in the presence of a reducing agent, by cooling the reaction mixture to 500-550 DEG  C., e.g. 530-540 DEG  C. ferric chloride and separating the dry crystals thereby formed.  Coating may be by liquids or vapours e.g. with an inert liquid which evaporates upon mixing with the gas. Exemplified are liquid metal chlorides e.g. titanium tetrachloride and also silicon tetrachloride and carbon tetrachloride.  The coolant may be recycled.  The solid ferrous chloride may be removed by a cyclone maintained at 500-550 DEG  C. before cooling the gases further to at least 250-270 DEG  C. to remove ferric chloride and then cooling to remove e.g. titanium tetrachloride. Alternatively the ferrous chloride may be blown over with the gases and collected with the ferric chloride.  The materials treated may be obtained by chlorination of ilmenite, rutile, beneficiated ilmenite and titanium dioxide-bearing slags. The ferrous chloride may similarly be separated from chlorides of tin and silica.
Patent GB-975548-A (GB)
Title: A knitting machine
IPC: D04B15/00
Filed: 1962-12-13
Abstract: 975,548. Knitting machines. SCHUBERT & SALZER MASCHINENFABRIK A.G. Dec. 13,1962 [Jan. 8, 1962], No. 47086/62. Heading D1C. A straight-bar machine has yarn severing means 25, 25<SP>1</SP> at each end of the needle bar comprising heated elements which sear through the yarn extending from the fabric to a pneumatic clamp 7 after a yarn guide has been withdrawn from operation. In addition gripper devices comprising a rod 10 and a roller 15, Fig. 3, serve to grip the yarn extending from a narrowed portion of fabric and hold it taut for engagement by the severing means. The severing means are pivotally mounted on a rod 20 and are normally retained in a lowered inoperative position but are raised to an operative position to engage the yarns when a yarn guide is withdrawn. The severing means are also mounted on rods 28, 29 which are actuated to move the means towards or away from each other dependent on the width of the fabric. The gripper devices are actuated to engage the yarn by the pivoting action of rod 20.
Patent GB-1165712-A (GB)
Title: Improvements relating to Teaching Machines
Inventor: WATSHAM PETER DAVID
IPC: G09B7/06
Filed: 1965-11-06
Abstract: 1,165,712. Educational appliances. P. D. WATSHAM. 6 Feb., 1967 [6 Nov., 1965], No. 47161/65. Heading G5G. A teaching machine comprises a casing having a compartment 10 for programme-bearing members, means operable to display the members individually, an electrical circuit including a signal device and a plurality of switches each actuable so as to operate the device, a selection device operable externally of the casing in any one of a plurality of alternative selected positions to actuate a corresponding switch, and a plurality of feelers for sensing a displayed member, the feelers corresponding to respective selected operable positions of the selection device and being individually movable by operation of the selection device at a corresponding position, movement of each feeler serving in use to actuate a corresponding switch so as to operate the signal device when the feeler engages an aperture in a displayed member. In the illustrated machine the casing has transparent windows 19, 20 through which a question and four possible answers on a programme card can be viewed. Four pivotally mounted selection assemblies 13, 27, which comprises the selection device, carry rocker plates 29 (Fig. 4) which comprise the feelers, and each correspond to an answer. Each card includes a notch adjacent the correct answer such that if the correct assembly is selected its rocker will be pivoted to engage the upper of two projecting prongs, and thus make a circuit for the " correct " indicator lamp 22. An incorrect selection will cause the rocker to engage the lower of the prongs and thus actuate an error counter 23. After use the uppermost programmed card is removed to a used card position by a slide (15) (Fig. 3, not shown). An adjustable barrier (18) prevents removal of more than one card.
Patent GB-1345930-A (GB)
Title: Glassy zinc a-hydroxy diphosphonic acid products and their use as corrosion and scale inhibitors
IPC: C02F5/14
Filed: 1971-10-11
Abstract: 1345930 Sequestering CALGON CORP 11 Oct 1971 [16 Oct 1970] 47255/71 Heading C1C [Also in Divisions C2 and C7] Impurities present in an aqueous system are sequested by adding thereto a glassy product represented by the formula (I) where R is C 1 -C 5  alkyl, phenyl or benzyl, each M is independently alkali metal or ammonium and y is 1 to 1À75.
Patent GB-1484520-A (GB)
Title: Parallel connections of adjustable cone pulley gears
IPC: F16H37/08
Filed: 1975-11-18
Abstract: 1484520 Expanding wheel gear G HOFFMANN 18 Nov 1975 [20 Nov 1974 26 Aug 1975] 47376/75 Heading F2D In an expanding V-belt pulley gear wherein two, three, four, five or six cone pulleys 18, 20, arranged axially side-by-side on one shaft 2, drive in parallel, through V-belts 46, 48, similarly arranged spring pulleys 72, 74 on a parallel shaft 76, any tendency of the pulleys on either shaft to run asynchronously, as due to unequal belt wear &c., is counteracted by equalizing means comprising a bevel-toothed differential gear 50 between that shaft, e.g. 2, and two adjacent inner pulley flanges 18a, 20a, and oppositely-handed screw-threads 38, 40 between the shaft 2 and the outer pulley flanges 18b, 20b, which, in response to any lack of synchronism, cause the pulley flanges 18b, 20b to screw in opposite directions and adjust the corresponding pulleys 18, 20 until synchronism is restored. In Fig. 1 the differential planet carrier 4 is secured to the shaft 2, and its side wheels 10, 12 to the respective pulley flanges 18a, 20a, which are splined at 34, 36 to the companion flanges 18b, 20b and are rotatably mounted at their peripheries on conical plates 26, 28 abutting the planet carrier 4. One threaded member 38 is integral with the shaft 2, whilst the other, 40, can be slidden axially on splines thereon for adjustment of the overall ratio, any adjustment of the pulley 18 being followed automatically by a similar adjustment of the other, 20, by action of the differential gear and screw threads. The flanges 72b, 74b of the output pulleys are loaded by a single spring 78, bearing through rings 84, 86 on parts 82, 84 of the flanges, which pass radially inwards through slits 90, 96 in the output shaft 76. In Fig. 2, not shown, there are five parallel pulleys on each shaft, those of the two outer pairs on one shaft being connected by differential gear and screw threads as in Fig. 1. Between the third and fourth pulleys is a primary spur planet gear (104) through which the drive to all the pulleys is initiated. On its right side one output element of this planet gear (104) is in series with the differential gear (128) of the adjacent outer pulley pair, whilst on its left side its other output element is in series with a secondary spur planet gear (114) one output element of which drives the differential gear of the adjacent outer pulley pair, whilst its other output element directly drives the centre pulley. The primary planet gear (104) has a three-to-two torque ratio commensurate with its outputs to three and two pulleys, whilst the secondary planet gear (114) has a two-toone ratio distributing to two and one pulleys respectively. The ratio adjusting threaded member (148) is axially located on the shaft and is turned relatively to the shaft, for ratio adjustment, through a toothed belt drive (152). The pulley flanges may be of light metal coated with a polyamide or p.t.f.e. and the bushings and differential gears may be s'milarly coated or wholly of that material.
Patent GB-1339289-A (GB)
Title: Target game
IPC: A63B65/12
Filed: 1971-10-12
Abstract: 1339289 Target game; toy projectors M I GLASS [trading as MARVIN GLASS & ASSOCIATES] 12 Oct 1971 [16 Oct 1970] 47439/ 71 Headings A6H and A6S A target game includes target pieces 14, missiles (e.g. discs) 22 and a missile projector 20. The missile projector 20 has a magazine 24 for missile storage, a spring firing element 30 movable from a stressed position outside the magazine 24 to a position an the magazine to fire missiles from the projector and semicircular shoes 40 to enable adjustment of the firing elevation of the missiles from the projector.
Patent GB-1404887-A (GB)
Title: Process for preparing a snack food product
IPC: A23L25/00
Filed: 1973-10-11
Abstract: 1404887 Coated snack foods UNILEVER Ltd 11 Oct 1973 [11 Oct 1972] 47459/73 Heading A2B An edible carrier, e.g. a dehulled peanut, is coated with a starch-containing material containing starch and water in a weight ratio between 75:25 and 55:45, 20 to 40% of the starch being pregelatinised, and the coated carrier is then fried in oil. The coating may take place in a rotary drum. Corn starch is specified in the examples. Other edible carriers may be pulse, seeds, grains, pastilles and nuts. The coating may also include salt, monosodium glutamate, soya oil, garlic, paprika, and other flavours and colourings. The water and solids may be added separately to the rotary drum.
Patent GB-1061595-A (GB)
Title: Improvements in or relating to guide rollers for use in web printing or coating machines
IPC: B65H27/00
Filed: 1963-12-04
Abstract: 1,061,595. Set-off preventing; printing. VELCRO CORPORATION. Dec. 4, 1963 [Dec. 14, 1962], No. 47882/63. Heading B6C. [Also in Division F2] A wooden, plastics or metal guide roll (16) Fig. 2 (not shown), for supporting freshly printed or coated paper is covered by a woven fabric, e.g. nylon, base sheet 20 having radially protruding resilient nylon piles 22 which are non-absorbent. The single stranded looped piles 22 are integral with and spaced apart by several times their cross-sectional dimension on the base sheet 20 and are set in place by heating. The tops of the loops may be cut off or a side strand cut. The base sheet 20 is applied in a single or two oppositely handed spirals and is rendered impervious by impregnating with materials, e.g. nylon, polyurethane which are set in place by heat, chemical activation or may solidify by solvent evaporation. The base sheet 20 is glued to the roll (16) by a rubber resin applied before gluing to the roll to form a precoat rendered tacky by a solvent, e.g. methyl-ethyl-ketone forming a water or petroleum solvent sensitive bond.
Patent GB-1163051-A (GB)
Title: Improvements in or relating to Textile Machines.
Inventor: FRENZEL BERTRAM
IPC: D04B23/12
Filed: 1966-11-10
Abstract: 1,163,051. Knitting-machines. NAHWIRKMASCHINENBAU MALIMO KARLMARX-STADT, VEB. 10 Nov., 1966, No. 48056/66. Heading D1C. The carriage 1 for laying a weft thread for feeding to the needles of a chain stitch sewing machine a warp knitting machine or loom is reciprocated by a chain drive 2 which derives its motion from a sliding crank arrangement 24 ... 29 and driving chains 34, 35, 40. Sprockets 11, 12 determine the extent of reciprocation and adjustment of the slide 28 determines the dwell of the carriage at each end of its traverse.
Patent GB-1323139-A (GB)
Title: Non-reciprocal reactance amplifier device
IPC: H03F7/04
Filed: 1970-10-09
Abstract: 1323139 Parametric amplifiers LICENTIA PATENT-VERWALTUNGS GmbH 9 Oct 1970 [16 Oct 1969 (3)] 48190/70 Heading H3B In a non-reciprocal variable capacitance parametric amplifier comprising an up-converter D 1 , Fig. 1, and a down-converter D 2 , the two diodes are pumped out of phase with one another by a common pump P and phase shifter Ph, and are coupled by a circuit H which has a hypercritical response in the lower half of the passband and a subcritical response in the upper half. This coupling is stated to maximise the bandwidth of the amplifier. In Fig. 1 input and output ports E and A are tuned to the signal frequency, while a two terminal network K provides neutralization. Fig. 2 is the equivalent circuit of the amplifier, in which E and A are parallel resonant circuits comprising Ls 1 , Cs 1  and Ls 2 , Cs 2  respectively, and each diode comprises variable capacitor C D  and a series resistor and indictor R D , L D  the pump circuit comprises P, R 1 , Lp and Cp, while coupling H comprises C H  and L H . At the lower and upper extremes of the passband this circuit reduces to two simple circuits, Figs. 4, 5 (not shown), which provide the required coupling for broadband operation. It is stated that the neutralizing network K may be replaced, at a suitable operating frequency, by the finite susceptance of coupling circuit H combined with the parameters of the diodes, Fig. 8, (not shown). This necessitates a pump : signal frequency ratio of around three. Construction.-Figs. 10 and 11 show longitudinal plan and elevation views of a structure not requiring neutralizing network K. The input and output networks comprise coaxial lines S 1 , S 2 , each tuned to (#p+s)/4, # p+s  being the wavelength at the upper end of the passband. The two lines terminate at diodes D 1 , D 2  within a cavity which serves as the coupling network H and which is of length #h/4 where # h  is the resonant frequency of H. The pump P is connected via a coaxial line which forms a capacitance C 1  and whose inner conductor serves as an inductor Lp. The end of this conductor also acts as a capacitor C 2 . The component values are chosen to give the required hypercritical response and the subcritical response necesssary to maximise the amplifier bandwidth.
Patent GB-1267958-A (GB)
Title: Superconductive tunnel junction device
IPC: G11C11/44
Filed: 1969-10-02
Abstract: 1,267,958. Superconductor devices. INTERNATIONAL BUSINESS MACHINES CORP. 2 Oct., 1969 [28 Oct., 1968], No. 48407/69. Heading HlK. A superconductor device comprises a Josephson junction formed between two overlapped superconductor strips, the length of the overlap being significantly greater than the penetration depth of the junction, insulated from a superconductive ground plane. As shown, Fig. 1, a glass or pyrex substrate 4 is provided with a lead ground plane 2 which is covered with SiO insulation (not shown). A masking technique is used to deposit tin strips 8, 8<SP>1</SP>, the ends of which are oxidized, and tin strips 12, 12<SP>1</SP> are deposited to form Josephson junctions having a length L. Tin control and bias conductors 16, 20, 16<SP>1</SP>, 20<SP>1</SP> are deposited with interposed insulating layers (not shown). The device forms a bi-stable element and is supplied with bias currents and gate currents sufficient to operate the Josephson junctions just below their switching points, a small current in a control conductor being sufficient to switch the associated junction to its voltage state resulting in the gate current being steered into the other arm.
Patent GB-1333571-A (GB)
Title: Electromagnetic powder couplings
IPC: F16C19/16
Filed: 1970-10-13
Abstract: 1333571 Bearings CREUSOT-LOIRE 13 Oct 1970 [17 Oct 1969] 48541/70 Heading F2A [Also in Division H2] In an electromagnetic powder coupling comprising outer and inner rotors 2,1 mutually centred by two ball bearings 8, 9, the latter are of the deep groove type and have between the balls 11, 15 and grooves 38 ... 41 a radial clearance 14 which when cold is at least equal to that of standard C5, and they are mounted such that the two inner races 12, 16 are housed against shoulders, e.g. 21, of the inner rotor 1, and the outer race 17 of one abuts directly against a shoulder of one lateral cheek 6 of the outer rotor 2 whilst the outer race 13 of the other abuts against one side of an elastic washer 22 whose other side bears against the other lateral cheek 5 of the outer rotor. Thus the washer 22 prevents axial play, and the larger than normal bearing clearance permits, without seizure of the bearings, a higher temperature rise to take place in the inner rotor than in the outer rotor. A coil 4 magnetizes the powder, e.g. steel in the gap 3. Grease injected via lubricators 31, 34 and chambers 30, 35 is regained in the bearings by washers 27, 28, until excess escapes via clearances 29, chambers 32, 36, and channels 33, 37.
Patent GB-1119333-A (GB)
Title: Improvements in or relating to single-sideband systems
IPC: H03C1/60
Filed: 1965-11-17
Abstract: 1,119,333. Frequency changing. L. R. KAHN. 17 Nov., 1965 [30 Nov., 1964], No. 48826/65. Heading H2F. [Also in Division H3] A frequency doubler comprises a full wave rectifier circuit feeding a non-linear network. In Fig. 3 the audio frequency input at C is rectified by the diodes 30 and 32 with their associated resistances 34 and 36, and fed to the non-linear network formed by diode 40 in parallel with resistance 42; the network attenuates all except the second harmonic component of the input.
Patent GB-1069849-A (GB)
Title: A new vat dyeing process
IPC: C09B19/02
Filed: 1965-11-19
Abstract: Natural or regenerated cellulose materials are dyed with a dioxazine dye which does not contain a vattable polycyclic quinone residue or a phosphoric acid group but contains 1-4 -SO3H or -COOH groups in a process wherein the dye is reduced to the lenco form with a reducing agent at a pH of at least 9 and the lenco compound is reoxidised on the fibre.  Suitable dyes have the formula <FORM:1069849/D1-D2/1> wherein Y is -SO3H or -COOH, n is 1-4, X is a halogen and wherein rings A and B may contain further substituents and/or condensed heterocyclic or carbocyclic rings.  The dyes may be applied in their reduced form by padding and thereafter subjected to steam or dry heat or stored in the absence of air or alternatively they may be applied from a dyebath.  The specified reducing agents are sodium hydrosulphite, thiourea dioxide or a -hydroxyalkane sulphinic acids or mixtures thereof.  Neutral salts may be added to the dyebath. Redox catalysts may be employed (some specified).  Examples are given.
Patent GB-1362502-A (GB)
Title: Process for the production of dry milk protein products
IPC: A23C9/15
Filed: 1972-10-26
Abstract: 1362502 Proteinaceous milk products J A MEGGLE [trading as MOLKEREI J A MEGGLE MILCHINDUSTRIE] 26 Oct 1972 [9 Nov 1971] 49489/72 Heading A2B A milk product containing precipitated casein for example curds, dried curds, casein, acidified skim milk, buttermilk, or a concentrate derived from the ultrafiltration of skim milk, is adjusted to below the isoelectric point of casein by addition of an acidified milk derivative, for example sweet, sour, partially delactosed, partially deproteinised, or desalinated whey, skim milk, buttermilk, or an ultrafiltration product, the product is then brought into dispersion or solution, and dried, preferably after concentration with regard to the protein content, and after heat sterilising. Other foodstuff components may be added to the product, such that on reconstituting with water the result preferably has a pH around the isoelectric point. The product may be used in the preparation of curd filling for cakes, and in salad dressing and mayonaisse-like products.
Patent GB-1504828-A (GB)
Title: 1 - alkyl (or aryl) sulphinyl-1-alkyl (or aryl) thio-2-(3'- chloro-4'-allyloxy-phenyl) ethylenes
IPC: C07C69/92
Filed: 1976-11-26
Abstract: 1504828 1-Alkyl (or aryl)-sulphinyl-1-alkyl (or aryl) - thio - 2 - aryl - ethylenes SAGAMI CHEMICAL RESEARCH CENTRE 26 Nov 1976 [28 Nov 1975 1 Dec 1975] 49520/76 Heading C2C Novel compounds (I) where R<SP>1</SP> and R<SP>2</SP> are alkyl or aryl, are made by interacting 3 - chloro - 4 - allyloxybenzaldehyde and R<SP>1</SP>SCH 2 SOR<SP>2</SP> in the presence of a base. The invention also comprises a process for making (3 - chloro - 4 - allyloxyphenyl)acetic acid or its esters by hydrolysing (I) using aqueous or alcoholic mineral acid.
Patent GB-1413826-A (GB)
Title: Sensitized silver halide photographic emulsions
IPC: C09B23/10
Filed: 1972-10-27
Abstract: 1413826 Sensitizing silver halide emulsions FUJI PHOTO FILM CO Ltd 27 Oct 1972 [28 Oct 1971] 49776/72 Heading G2C A negative working photographic light-sensitive emulsion contains (a) silver bromoiodiode grains dispersed in a hydrophilic binder comprising more than 50% by weight of gelatine, (b) at least one cyanine dye (the term cyanine dye including monemethaine cyanine and carbocyanine dyes, but excluding merocyanine dyes which sensitizes the emulsion to the green region of the spectrum and (c) at least 0.01 mole of iodide ions per 100 moles of silver halide adsorbed on the silver bromiodide grains. The iodide is preferably in the form of a water soluble iodide e.g. KI, NaI, NH 4 I, ZnI 2 , CoI 2 , CdI 2 , CaI 2 , SrI 2 , and BaI 2 , and bromide ions may also be present. The dye is preferably an oxacarbocyanine, benzimidazolocarbocyanine, benzimidazoloxa carbocyanine or benzimidazoloindocarbocyanine.
Patent GB-1414619-A (GB)
Title: Heat treatment furnaces and methods of heat treatment
IPC: D21H17/03
Filed: 1971-10-27
Abstract: 1414619 Continuous heat treatment furnaces ACTRIC Ltd 16 Oct 1972 [27 Oct 1971] 49856/71 Heading F4B In a continuous heat treatment furnace having a preheating chamber 16 separated by a wall 15 from a treatment chamber 17, the latter is indirectly heated by radiant tubes 24 fired by burners 25, the former being heated directly by hot gases from the radiant tubes. Preheating chamber 16 is further divided into sections 20 and 21 by a wall 19, the front section 20 having a gas outlet 31 controlled by a sliding damper 32. Each radiant tube has an extension 26 formed with ports 27 and 28 controlled by a slide tube 29 actuated by a rod 30 so that hot gases enter either or both sections of the preheating chamber. The rod 30 may be operated by an electric or fluid motor subject to a control depending on the temperature of the preheating chamber. Some waste gases from the latter may be removed by pipe 34, cooled to precipitate water, mixed with fuel gas and pumped to the treatment chamber as atmosphere gas via space 37 between one of the radiant tubes and a sleeve 38. Workpieces may be conveyed through the furnace to a discharge shoot 13 by conventional means, e.g. a shaker or roller hearth, a walking beam conveyer or an endless conveyer.
Patent GB-1527874-A (GB)
Title: Fault detector and interrupt circuit useful in a television signal processing system
IPC: H04N3/20
Filed: 1975-12-04
Abstract: 1527874 Protective circuits RCA CORPORATION 4 Dec 1975 [30 Dec 1974] 49873/75 Heading H2K  A D.C. power supply circuit 36 is connected to its energizing A.C. source 38 via a relay contact 62a which remains closed only so long as the output voltage of the circuit is sufficient (i.e. no overloads on the circuit), the contact being shunted by a path 60, e.g. a PTC resistor, whose impedance increases with the current through it. On initial switch-on, the PTC resistor 60 conducts current for long enough to allow the power supply output voltage to build up and so energize the relay 56, 62a. On overload, the fall in output voltage will cause the relay to drop out, but if the overload is not a sustained one the current through the PTC resistor 60 will permit build up of the output voltage again and reclosure of the relay. If several open-reclose cycles take place in succession, however, the temperature of the PTC resistor will reach a value such that no further reclosures are possible. When the power supply 36 energizes a television receiver, further contacts 64a of the relay isolate the horizontal deflection circuitry to prevent lock-out conditions.
Patent GB-1510959-A (GB)
Title: Manually operated electric switches
IPC: H01H19/11
Filed: 1975-04-25
Abstract: 1510959 Mechanical switches J A CRABTREE & CO Ltd 25 April 1975 [9 March 1974] 49895/77 Divided out of 1510958 Heading H1N The disclosure is the same as in the parent Specification but the claims are directed to the interchangeability of detent and switch units.