baber/WOPTO huggingface dataset:
Patent GB-1353176-A (GB)
Title: Drive-means for electrical time pieces
IPC: H02N2/12
Filed: 1971-07-15
Abstract: 1353176 Electric timepieces SIEMENS AG 15 July 1971 [17 July 1970] 33260/71 Addition to 1312996 Heading G3T [Also in Division F2] A frequency stabilized drive for a timepiece wherein a Piezo-electrically driven tuning fork 1 actuates a drive wheel 8 through a coupling 7 has a second, smaller tuning fork 4 electrically or mechanically coupled to the first fork and consisting of metal, the free ends of the prongs of the fork 4 carrying weights 5 which match the resonant frequency of these prongs to the fundamental frequency of the fork 1 whereby the second fork serves as a narrow band frequency standard. As shown, the prongs of fork 1 comprise Piezoelectric bimorphs and the right-hand (driving) prong is driven by a transistor oscillator. The left-hand prong produces a voltage which is applied to a Piezo-electric element 6 on one prong of the fork 4 and a similar element 6 on the other prong produces a feedback voltage for controlling the oscillator. Wheel 8 may comprise a conventional toothed wheel in which case the feedback voltage is applied directly to the oscillator. Alternatively, as shown, wheel 8 has a smooth surface and is formed of material into which the latch 7 sinks on the drive stroke and slides along on the return stroke. In this case the wheel carries magnetic elements 9 of alternate polarity which cooperate with a detector coil S in series between the fork 4 and the oscillator, the signals produced by coil S being compared with those produced by fork 4 so that the oscillator is also controlled in accordance with the desired speed of wheel 8. The oscillator may utilize a field-effect transistor or a pair of transistors connected in a Darlington circuit.
Patent GB-1463321-A (GB)
Title: Bonded films of synthetic material
IPC: B32B27/00
Filed: 1974-07-30
Abstract: 1463321 Laminated films REIFENHAUSER KG 30 July 1974 [10 Aug 1973] 33493/74 Heading B5N A synthetic material bonded film comprises at least two stretched films 1 and 2, each of which has a main direction of stretching 3, the films being united with the main stretching directions crossing each other, each film having slits 5 extending parallel to the main stretching direction and arranged in parallel rows 4 at right angles to the main stretching direction with the slits of one row being staggered in relation to the slits of an adjacent row, at least one film being of shrinkable material and having been shrunk after the films have been united. Thermoplastics films may be bonded by means of pressure and heat, which may include the use of ultrasonic energy, or by means of an adhesive. Bonding may be over the whole surface or at certain points only. The bonded films may be used in the production of sieves, filter cloths, bags for packaging purposes or carpets. The films bonded may be of different materials, colours and thicknesses, may have slits of different lengths and may have different amounts of stretching.
Patent GB-914990-A (GB)
Title: Improvements in or relating to paper bags
Inventor: FOSTER HAROLD
IPC: B65D33/00
Filed: 1959-10-02
Abstract: 914,990. Paper bags. BIB-  BY & BARON Ltd. Sept. 30, 1960 [Oct. 2, 1959], No. 33529/59. Class 94(2). A bag has a removeable label in the form of a part 3 of the bottom closure flap 4. In cutting consecutive blanks from a web, the part 3 forms a recess 5 in an adjacent blank. The part 3 is not adhesively secured to the bag wall. Reference has been directed by the Comptroller to Specification 699,599. ________
Patent GB-366591-A (GB)
Title: Improvements in or relating to sound reproducing systems
IPC: G03B31/00
Filed: 1930-11-07
Abstract: 366,591. Reproducing music. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Hickson, D. C. ; 344, West 72nd Street, New York, U.S.A.) Nov. 7, 1930, No. 33561. Convention date, Dec. 19, 1929. [Class 40 (iv).] An arrangement whereby the outputs of two pick-ups may be selectively, or in combination, connected to a sound reproducer comprises a fade-over potentiometer, an auxiliary potentiometer, and a switch which in normal position makes the usual connections between the pickups and fade-over potentiometer, but may be thrown so as to substitute the auxiliary potentiometer for either half of the fader and to allow the outputs to be superposed and individually controlled. With the switch 20 in the normal (full line) position, the pick-ups 10, 101 associated if desired with scratch filters 17, 17<1> and equalizers (not shown), are connected in the usual manner to the two halves of the faderpotentiometer 14, the amplifier 18 and sound reproducer 19 being connected between the grounded centre point of the potentiometer and the movable arm 15, which is in series with a resistance 16 to maintain the impedance of the circuit approximately constant. The auxiliary potentiometer 21 is out of circuit. When the switch is thrown to the right, springs 25, 26 take up the dotted line positions, the upper half of potentiometer 14 remains connected across pick-up 10, the lower half of 14 is disconnected from 10<1>, and the auxiliary potentiometer 21 is connected up in its place. The movable contact of 21 is connected to output terminal 13 in series with a resistance 23 having functions similar to 16 and a further resistance 22 (normally short-circuited) is connected in series with 16 to compensate for change in impedance of the circuits due to the switching operation. Movement of the switch to the left replaces the upper half of the fade-over potentiometer by the auxiliary potentiometer. The switching operation may place resistance 22 in series with the movable contacts of both potentiometers by changing over the connections of 22 to the switch.
Patent GB-1458130-A (GB)
Title: N-2,4-dihalo-2-triazin-6-yl-ureas and process for their manufacture
IPC: C07D251/44
Filed: 1974-07-30
Abstract: 1458130 N - (2,4 - Dihalo - x - triazin - 6- yl)-ureas CIBA-GEIGY AG 30 July 1974 [17 Aug 1973] 33606/74 Heading C2C N - (2,4 - Dihalo - s - triazin - 6 - yl) - ureas of general formula wherein X is halogen; R is an optionally substituted alkyl, cycloalkyl, aryl group or H, and Y is H or -SO 3 H or a salt thereof, are prepared by reacting a dihalo-amino-s-triazine of general formula with ClSO 2 NCO and hydrolysing the resulting reaction product. The compounds are novel except where R = Y = H. Acid hydrolysis yields the urea and alkaline hydrolysis gives the N<SP>1</SP>- sulpho-urea. Amongst numerous examples N - (2,4 - dichloro - s - triazin - 6 - yl)urea and N - (2,4 - dichloro - s - triazin - 6 - yl) - N - methyl - N<SP>1</SP> - sulpho - urea are prepared.
Patent GB-880688-A (GB)
Title: Improvements in and relating to artificial filaments, fibres and yarns consisting oforganic acid esters of cellulose
IPC: D01D5/253
Filed: 1957-10-29
Abstract: Cellulose ester filaments of C-shaped crosssection are formed by extruding a solution of a cellulose ester of an organic acid through a spinneret whose extrusion orifices are semicircular in cross-section into a dry-spinning cabinet, drafting the filaments in the cabinet at a draft ratio of 1,0 to 1,16 (preferably 1,12), and passing an evaporative medium through the cabinet at a temperature of 50 to 100 DEG C.  In an example, a 29,5% solution of cellulose acetate in acetone is pumped through a candle filter maintained at 55 DEG  C. and extruded through a spinneret having semi-circular orifices, the diameter of the circle being 0,05 mm., into a spinning cabinet at a draft ratio of 1,43 and a spinning speed of 500 metres per minute.  Air at 60 DEG C. is introduced at the rate of 3,3 cu. ft./minute into the top of the cabinet and air at 85 DEG  C. and at a flow rate of 5 cu. ft./minute into the bottom of the cabinet, the air being discharged from the cabinet through an outlet about one third way down from the top of the cabinet.  Cellulose esters of organic acids containing 3 or 4 carbon atoms in the molecule and mixed esters may also be used. The denier per filament may range from 1,5 to 50. Yarns composed of filaments produced according to the invention have greater bulk than yarns formed from round or clover-leaf cross-section filaments of equivalent denier and are suitable for the manufacture of pile fabrics and cigarette filters, e.g. according to the method of Specification 765,961 [Group VI]. Specification 818,215 and U.S.A.  Specifications 2,000,047, 2,000,048 also are referred to.ALSO:Cigarette filter tips are made by the method of Specification 765,961 from fibres composed of C-shaped cross-section cellulose acetate filaments formed by dry-spinning a cellulose acetate solution under certain conditions (see Group IV (a)).  The open C-shaped cross-section of the fibres permits filling them with auxiliary compounds such as vegetable starch, calcium and magnesium phosphates and carbonates, wheat flour, amino acid salts and polymeric polyamines.  Specification 818,215 also is referred to.
Patent GB-172966-A (GB)
Title: Process of producing high-percentage pure anthracene
IPC: C07C7/05
Filed: 1921-12-14
Abstract: Crude anthracene is purified by distillation under ordinary or reduced pressure without fractionation with gas oil, vaseline oil, or similar manner of fluorene, acenaphthene, a-naph-260-315 DEG  C.; anthracene of 73-80 per cent crystallizes from the distillate and by a repetition of the process anthracene of 90 per cent may be obtained.  As the distillation progresses, further quantities of the oil may be added to the distillation mixture in order to prevent overheating.  Specification 168,108 is referred to.
Patent GB-876741-A (GB)
Title: Method of and apparatus for preventing blinding of micro-filters
Inventor: BOUCHER PERCIVAL LIONEL
IPC: B01D35/00
Filed: 1958-10-22
Abstract: The "blinding" of the pores of a microfilter, caused by growth of bacteria or by organic slime, is prevented by irradiating the filter with ultra-violet light, preferably through an optical filter which intercepts the ozoneforming components of the radiation.  Preferably a guard is fitted to mask the lamp and concentrate the radiation. The micro-filter may be the outward-flow rotary drum filter of Specification 588,885.
Patent GB-890040-A (GB)
Title: Improvements relating to hats or other head coverings
IPC: A42C5/00
Filed: 1960-10-03
Abstract: 890,040. Head coverings. MILNER, Y. P. Oct. 31, 1960 [Oct. 3, 1960], No. 33812/60. Class 63 A head covering, e.g. a plastic rain hat, comprises two layers of material of which at least the outer layer is of transparent plastic material, opaque decorative emblems or patterns being located between the layers to form an ornamental display.
Patent GB-1513977-A (GB)
Title: Smoking material and method for its preparation
IPC: A24B15/00
Filed: 1976-08-13
Abstract: 1513977 Tobacco substitutes PHILIP MORRIS INC 13 Aug 1976 [15 Aug 1975] 33878/76 Heading A2C [Also in Division C3] A film forming carbohydrate which has been treated with ozone so that it has at least 0.2 milliequivalent of carboxyl groups per gram is employed as a smoking material. The carbohydrate is preferably a polysaccharide such as the pectin contained in lemon albedo. The smoking material may be mixed with tobacco or used alone. Other conventional ingredients such as flavourants, humectants and burn additives may be added.
Patent GB-337210-A (GB)
Title: Improvement in seed container and dispenser
IPC: B65D33/36
Filed: 1929-11-07
Abstract: 337,210. Kollman, W. F. Nov. 7, 1929. Paper and like bags. - A paper seed container of the type provided with a dispensing nozzle or channel adapted to be folded within the container comprises two walls 5 secured along certain edges to form a packet, and one wall projects beyond the other and has side portions 11, 15 secured together to form a tubular dispensing channel which has a discharge opening 21 at the outer end and which can be folded into the packet. A point 19 in the flap 15 may be pressed down on to the lip of the opening 21 to ensure a more even distribution, and by pressing on the side edges of the packet, the size of the opening and, thereby, the amount of seed flowing can be controlled. After the dispensing nozzle has been folded in, the packet can be sealed by a flap 25. The combined container and nozzle is made from a single blank.
Patent GB-475925-A (GB)
Title: Preparation of cellulose suspensions and of cellulose xanthate solution
IPC: D01F2/08
Filed: 1936-12-10
Abstract: Suspensions of cellulose are prepared by cutting sheets of cellulose fibre in the form of pulpboard into chips consisting of fibre aggregates, soaking the chips in relatively strong caustic soda solution to soften them, diluting with water, and disintegrating the softened chips.  Some of the caustic soda solution used for the soaking may be removed prior to diluting with water.  Conveniently, the chips have an area of not more than one square inch and are cut from pulpboard sheets of thickness 0,03 to 0,06 inch.  Viscose is prepared by acting on the suspension with carbon disulphide, in which case the suspension preferably has a cellulose and caustic soda content each within the range 6 to 10 per cent.  Suitable mixing and reacting apparatus is described in Specification 474,707 [Group II]. Soaking of the chips may also be carried out in a series of wire cloth baskets.  In an example, chips of cellulose pulpboard of about half an inch square are placed in the reaction vessel together with caustic soda solution of about 18 per cent strength in volume calculated to yield a final viscose of a cellulose and caustic soda content each within the range 6--10 per cent.  After standing for a while and, if desired tumbling, water is added to yield a mixture containing for example, 10 per cent of caustic soda, and mixing is carried out until the chips have been resolved into the ultimate or individual fibres.  Carbon disulphide is then added to produce the viscose.  The preliminary soaking of the chips may be carried out at low temperatures, for example at about 0 DEG  C. using caustic soda solution of 15 to 18 per cent strength, or at raised temperatures, for example at 30--50 DEG  C. using concentrations of above 18 per cent.  The cellulose pulpboards used may be made from birch or other hardwoods, as well as from chemical wood pulps which may be refined to high alpha cellulose content, or from cotton.  Specification 468,993 also is referred to.
Patent GB-947566-A (GB)
Title: Improvements in or relating to travelling wave tubes
Inventor: BUHLMANN FREDERICK THEODOR
IPC: H01J23/26
Filed: 1962-09-05
Abstract: 947,566. Travelling wave tubes. MULLARD Ltd. Sept. 5, 1962, No. 34025/62. Heading H1D. A travelling wave tube comprises a support member 1 extending along the tube, a channel 2 of rectangular cross-section extending along the support member, a pair of insulating locating rods 3, 4 extending along the channel in adjacent corners of the channel and serving as a cradle to locate, a helix 5 in the channel, together with further locating means for holding the helix in position in the cradle. As shown, the further locating means may comprise two further insulating rods 6, 7 on forming an inverted cradle, the whole structure being held in position by a metal rod 8 which is urged against the further insulating rods by a spring 9 attached to the support member. Alternatively, an insulating bar of either circular or rectangular cross-section may be in contact with the helix and the sides of the channel. A coating of attenuating material may be provided at the centres of the further insulating rods so that the electrical connection to the helix is made through this coating from the metal bar. The supporting member is preferably of circular cross-section and the channel may be open sided and shown or may be a closed channel.
Patent GB-872675-A (GB)
Title: Air heating furnace
IPC: F24H3/06
Filed: 1959-10-07
Abstract: 872,675. Air heating furnaces. BARR, R. M. Oct. 7, 1959, No. 34027/59. Class 64(1) In an oil fired air heating furnace in which air is heated in flowing through a space 6 between the combustion chamber 2 and a surrounding casing 5, the air heating assembly is detachably supported upon a base casing 8 containing a motor driven fan 9 arranged to discharge air in a vertical direction, e.g. through a tangential duct 13, and the construction of the base casing is such that on erection it may be positioned either (as in Fig. 1) so that the fan blows a stream of air to be heated upwardly through the space 6 the heated air then being discharged at the top of the apparatus, or (as in Fig. 2) so that the fan induces a flow of air downwardly through the space 6, the heated air then being discharged at the bottom of the apparatus.
Patent GB-300112-A (GB)
Title: Improvements in and relating to temperature indicating or recording mechanisms
IPC: G01K7/14
Filed: 1927-12-15
Abstract: 300,112. Hopkins, N. M. Nov. 5, 1927, [Convention date]. Thermometers and pyrometers. - For calibrating apparatus for indicating or recording temperature there is provided a container so formed that it mav be mounted on and held in surrounding and heatconducting relation to the temperature-sensitive element, and having completely enclosed therein a substance which changes its physical state at a predetermined temperature and so influences the indication or record by latent heat effect at that temperature. Fig. 1 shows a recording expansion-thermometer comprising a fluid-containing bulb 31 connected by tubing 26 to a bourdon &c. gauge operating a recording arm 21. The bulb 31 is surrounded by a sleeve 37 between which and the bulb is the material 40 of known melting-point. The curve 41 shows the kind of record which is obtained, the part 42 denoting a pause in the rise of temperature whilst the material 40 melts and the part 46 a similar pause in cooling whilst the material 40 re-solidifies. The material 40 may be disposed in a container of annular section which can be attached to or detached from the thermometer. The outer surface of the bulb and one or both surfaces of the sleeve 37 may be screw-threaded, grooved &c. to increase their conductivity. Fig. 8 shows the invention applied to a thermo-electric pyrometer, the hot junction 100 being surrounded by. a receptacle 92 of refractory material containing the fusible substance 40. The receptacle 92 is enclosed in an iron &c. sheath 93, the rearwardlyextending part 96 of which is threaded for engagement with a nut 97 passing over an insulating sleeve 90 through which the thermocouple wires 88, 89 extend. Specification 282,424 is referred to.
Patent GB-1183298-A (GB)
Title: Rubbery Compositions
IPC: C08C19/02
Filed: 1968-07-17
Abstract: 1,183,298. Hydrogenated diene polymers. BRIDGESTONE TIRE K.K. 17 July, 1968 [20 July, 1967], No. 34141/68. Heading C3P. A rubbery composition comprises (a) 100 parts by weight of a hydrogenated hydrocarbon copolymer having a glass transition temperature of above - 100‹ C. and having polymeric monomer units which consist of (1) vinyl aromatic hydrocarbon units of from 5 to 60% by weight; (2) conjugated diolefin units of less than 85% by .weight; and (3) hydrogenated conjugated diolefin units of not less than 10% by weight, wherein the vinyl aromatic hydrocarbon units are essentially randomly distributed in the polymeric monomer units; and (b) from 5 to 200 parts by weight of an inorganic reinforcing filler of which the number average particle diameter is smaller than 500 mÁ. Vinyl aromatic hydrocarbons: styrene and α-methyl styrene. Conjugated diolefines: 1,3-butadiene and isoprene. Fillers; carbon black, hydrous silica, hard clay and the carbonates, hydroxides, oxides, silicates or sulphates of aluminium, barium, calcium, magnesium, silicon, titanium and zinc. The rubbery composition may be prepared by copolymerizing 5-60 parts by weight of vinyl aromatic hydrocarbon and 95 - 40 parts by weight of conjugated diolefin either by solution polymerization (through the use of a catalyst) or by emulsion polymerization (radical type initiator), selectively hydrogenating the diolefin units of the resulting copolymer in a viscous toluene solution in the presence of a catalyst obtained by mixing an organic compound of nickel, cobalt or iron with an organometallic compound of a metal from Groups I, II and III of the Periodic Table (or other coinpounds specified below) and, optionally, olefirii cally or acetylenically unsaturated hydrocarbon, precipitating the hydrogenated copolymer by acetone or methanol acidified with hydrochloric acid and mixing it with the filler and, if desired, other conventional ingredients. Organic compounds of nickel &c.: nickel, cobalt or iron naphthenates, nickel or cobalt octanoate, bis (acetylacetone) nickel, tris (acetylacetone) cobalt, bis (ethyl acetoacetate) nickel, bis (salicylaldehyde) nickel, bis (8- hydroxyquinoline) nickel, tris (8-hydroxyquinoline) cobalt, bis (3,5-diisopropyl salicylic acid) nickel. Organometallic compounds: n-butyllithium, diethyl magnesium, triethylaluminium, triisobutylaluminium, triamylaluminium and diethylisobutylaluminium. Lithium aluminium hydride and sodium borohydride may be used instead. The rubbery compositions exhibit high-tensile strength in the unvulcanized state and can be used in the manufacture of many articles, including cements and paints.
Patent GB-523651-A (GB)
Title: Improvements relating to automatic gate opening devices
IPC: E05F13/04
Filed: 1939-01-11
Abstract: 523,651. Gate-operating appliances. CRAIG, G. L. Jan. 11, 1939, No. 34387/37. [Class 65 (i)] A gate is actuated by a vehicle which tilts the pivotal axis of the gate, so that the gate moves by gravity. The vehicle wheels depress a treadle 42 or 44, one on each side of the gate, and this movement of the treadle is transmitted by a rod 46 or 48 to a plate 24 pivoted at 32 and provided with two arcuate slots 36, 38 engaged by two pins 20, 22 on the gate. During the movement of the plate 24, the gate is positively swung, the next part of its movement is effected by gravity owing to tilting of the hinge axis, and the remainder of its movement is due to momentum. The treadle is returned to normal by a spring 70 which is compressed during the depression of the treadle by the sliding movement of sleeves 64 having cam engagement with fixed sleeves 58. To prevent immediate reversal of the plate 24 when the treadle returns, the movement of the latter is transmitted to 24 by a lost-motion device 74 comprising two cylinders having pin slot connection.