baber/WOPTO huggingface dataset:
Patent GB-363979-A (GB)
Title: Improvements relating to the electrical transmission of pictures
IPC: H04N5/16
Filed: 1931-09-18
Abstract: 363,979. Television transmitters. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Bedford, A. V.; 118, E. Palmer Avenue, Collingswood, New Jersey, U.S.A.) Sept. 18, 1931, No. 26187. Convention date, Sept. 19, 1930. [Class 40 (iii).] At the end of each line scanned an auxiliary impulse is transmitted which is inversely proportional to the sum of the signals corresponding to the line. During the scanning of each line amplified photo-electric currents are passed through a long segment 17 on a commutator 15 to an amplifier 26 and an output circuit 28. At the same time a condenser 35 is charged to a level dependent on the drop of potential in the part of a resistance 32 between a tapping 33 and a battery 31. At the end of the scanning of each line the amplifier 26 is connected through a segment 18 to a battery 37 and the condenser 35. An impulse is thus sent to the output circuit depending on the relative potential of the battery and the charge on the condenser, which varies with the nature of the line ,scanned. The condenser is then discharged through a segment 19. According to a modification. the valves 23, 30 are resistance-capacity coupled and the potential applied to the segment 18 is controlled by an adjustable resistance, Fig. 2 (not shown).
Patent GB-988576-A (GB)
Title: Apparatus for detecting or controlling the level of material in a container
IPC: G01F23/296
Filed: 1961-07-19
Abstract: 988,576. Sonic inspection devices. IMPERIAL CHEMICAL INDUSTRIES OF AUSTRALIA & NEW ZEALAND Ltd. July 19, 1961 [July 25, 1960], No. 26223/61. Heading H4D. A method of detecting the presence of a substantially dry flowable solid (e.g. cereal grains, polyvinyl chloride powder) comprises disposing in a place likely to be occupied thereby a vibrating solid member and observing whether the vibration thereof is damped. The device described comprises a dust-tight casing 10 incorporating a thin metal diaphragm 14 resting on flange 12; ring 16 is bonded by an epoxy resin to the diaphragm and is held in place by sleeve 18. Inward diaphragm movement is limited bv rod 24. Barium titanate transducers 28 are clamped to ring 16; the transducers are connected in a transistor circuit, Fig. 3 (not shown), such that, when the diaphragm is in contact with air only, the circuit oscillates but when damped by the flowable solid oscillation ceases. Automatic level control may be added.
Patent GB-156362-A (GB)
Title: Improvements in or relating to tasselling and fringing machines
IPC: D04D5/00
Filed: 1919-10-28
Abstract: 156,362. Pass, A., and Perkins, A. Oct. 28, 1919. Overhead sewing-machines; fringing. - In machines for forming fringes on rugs, cloths, garments, &c., the knotted fringe b shown in Fig. 8 is formed by means of a latched needle 1, Figs. 1 and 10. The needle pierces the fabric a on its forward motion, draws the yarn through with it on its return motion, passes again forwardly above the edge of the fabric and clear of the loop formed, and returns with the tails d of the fringe to pass them partly through the loop formed as shown in Fig. 14. Subsequently a fringe 9 pulls through the tails d, and a hook 10 clears the yarn from the needle hook. The supply yarn is passed through a guide 8 and is cut, prior to the tails being lifted and drawn through, by means of a combined clamp and cutter 70. A lifter 3 is provided to pull up the yarn into position for engagement by the needle hook. The fabric a is gripped by horizontal feed-wheels 12, 13, the former having flanges 14, overlapping the edge of the latter and serving as abutments for the fabric. The needle is carried by a bar 27 reciprocated by linkage from cams 28, 29 on a shaft 25. The clamping and severing device 70 is operated by a link 74, lever 75 and cam 76, adjustments being effected by moving the link 74 along a rod 84. Adjustment of the needle-carrier allows of different lengths of fringe being formed. In the position shown in Fig. 1, the yarn has been severed by the device 70 and its end e clamped and pulled over into position for commencing a new loop, a carrier 3 being ready to seize the bight of the yarn and present it to the hook of the needle, the latch of which has been opened as the needle passes through the fabric to receive the yarn. The latch closes as the needle returns. The feed-wheels are operated by ratchet mechanism from cams 23, 24 on the shaft 25. The finger 9 and hook 10 may be dispensed with by giving a greater traverse to the needle.
Patent GB-787749-A (GB)
Title: A process for the production of silicofluorides
Inventor: SHERWIN KENNETH ARTHUR
IPC: C01B33/10
Filed: 1954-09-13
Abstract: In a process for producing alkali metal silicofluorides by reacting fluosilicic acid and an alkali metal salt in an aqueous medium, the reactants are separately introduced into individual streams of the fluid medium, each withdrawn from and recirculated to the reaction vessel.  As shown in the drawing, a reactor 1 fitted with agitator 2, is provided with a draw-off pipe 5 leading to a pump 6 from which the fluid reaction medium is recirculated to the reactor 1 through pipes 7 and 8 which discharge at different levels in the reactor. Reactants are supplied to lines 7 and 8 through pipes 9 and 10 and the alkali metal silicofluoride reaction product is withdrawn at 3 and 4.  The alkali metal silicofluoride obtained is crystalline and readily filterable.
Patent GB-1191842-A (GB)
Title: Improvements in or relating to Extrusion Apparatus
Inventor: GREEN DEREK
IPC: B21C23/00
Filed: 1966-06-15
Abstract: 1,191,842. Extruding. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 6 June, 1967 [15 June, 1966], No. 26765/66. Heading B3P. In a hydrostatic extrusion apparatus, the workpiece 14 to be extruded is contained in an annular chamber 8 defined between the bore 2 of the container 1 and a mandrel 4, and is extruded through a die orifice 3 by pressurization of liquid 15 in the chamber. For extruding a tube, a tubular billet 14 is disposed about the mandrel 4 which has an enlarged head 5 slidably sealed at 6, 7 within the bore 2. A cylinder 9 formed in the head communicates through passageway 13 with the annular chamber. Cylinder 9 contains a plunger 10 for pressurizing the liquid 15. Extrusion is effected by both pressurizing the liquid and applying axial pressure to the billet. The latter may be caused by providing a cylinder area 9 greater than that of the annular chamber 8, and/or by using a pair of auxiliary cylinders 16. In another embodiment, Fig. 2 (not shown), a tube is formed by backward extrusion of a tubular billet (47) using a movable tubular plunger (28) carrying the die orifice (29). The plunger is actuated by pressure liquid (48) supplied below plunger head 32, and simultaneously hydrostatic pressure is applied to the annular chamber (41) containing the billet. The degree of loading of the plunger is variable. In a further embodiment, Fig. 3, a coiled rod 70 contained in annular chamber 62, passes through a transverse passage 69 and longitudinal passage 67 in the mandrel 53. A plunger 64 pressurizes liquid 71 in the annular chamber 62 and the passages 67, 69 to extrude the rod through die orifice 68.
Patent GB-493478-A (GB)
Title: Improved method of and apparatus for forming glass articles
IPC: C03B9/20
Filed: 1937-10-04
Abstract: 493,478. Glass manufacture. OWENSILLINOIS GLASS CO. Oct. 4, 1937, No. 26798. Convention date, April 5. [Class 56] A machine for making glass articles, particularly hollow glass building-blocks, comprises a measuring mould and a body mould, means for charging the measuring mould with molten glass by suction, means for opening a passage between the two moulds, and means for creating a difference of pressure between the two moulds in order to transfer the charge of glass from the measuring mould to the body mould and to shape it therein. The invention may be applied to an Owens machine such as that described in Specification 29251/12, [Class 56], the mould units being carried, as usual, by dipping-frames. Each mould unit comprises a die block 26, Fig. 9, which co-operates with the hinged halves 27 of an edge mould, and with a side or face mould 28, to complete the body mould. Suction is applied to the mould cavity through the side mould 28, and channels 64 in the edge mould. The measuring mould consists of a cylindrical body 77 which is movable vertically in an opening in the middle of the die block 26 and is provided at its upper end with a ring 79 that forms its base. The mould is raised and lowered relatively to the block 26 by a camoperated lever and a spring, and suction is applied through a passage 94 in the holder, and channels 84 in the mould, to a slot 85 between the mould body and the base ring 79. A shear blade, movable across the base of the mould, is carried by an arm 131 secured to a vertical rocking-shaft 132, and air under pressure is led through a passage 133 in the shaft, and a passage 141 in the arm 131, to a vertical opening 142 which lies beneath the measuring mould cavity when the cutting- stroke of the knife is completed. In operation, the mould 77 is raised to bring the ring 79 into contact with the side mould 28, and the mould unit is lowered to contact with the molten glass by a pneumatic cylinder. Suction is then applied to the cavity in the mould 77, and glass enters the cavity, as shown in Fig. 4, until it reaches the height of the slot 85. The mould unit is raised and the trailing glass is sheared off, as shown in Fig. 5. The mould 77 is then moved downwards within the die block 26, while the cavity remains closed by the knife arm 131. The movement of the mould 77 opens a space between the moulds, and the application of suction through the passages 64, assisted by compressed air through the opening 142, causes the glass to be transferred from the measuring mould to the body mould, as shown in Fig. 6, to form the finished article, B, Figs. 7 and 9. The glass charge may be transferred from one mould cavity to the other solely by the application of suction to the passages 64 or by the application of pressure through the opening 142.
Patent GB-1090753-A (GB)
Title: Improvements in or relating to anaerobic curing compositions
Inventor: BOSWORTH PETER
IPC: C08F265/06
Filed: 1963-07-05
Abstract: A composition having anaerobic curing properties comprises a monomer (or a partial polymer thereof) of the formula <FORM:1090753/C3/1> wherein R is -H, -CH3, -C2H5, -CH2OH or <FORM:1090753/C3/2> R1 is -H, -Cl, -CH3 or -C2H5; R11 is -H, -OH or <FORM:1090753/C3/3> x and y are integers, each equal to at least 1 and n is 0 or 1, an organic peroxide (other than a hydroperoxide) having a half-life (as defined) greater than 5 hours at 100 DEG  C. and a tertiary amine. Monomers specified are diacrylates and dimethacrylates of diethylene glycol, triethylene glycol, tetraethylene glycol, dipropylene glycol, polyethylene glycol, polypropylene glycol, diglycerol and di-(pentamethylene) glycol, and the tetramethacrylate of diglycerol; esters of monoalkylene glycols may also be used and also glycol esters of acids such as ethacrylic or chloroacrylic acid.  Suitable peroxides include 2,5 - dimethyl - 2,5 - di - (t - butyl peroxy)-hexane, di-t-butyl peroxide, dihexylene glycol proxide, t-butyl-cumyl peroxide, methyl isobutyl ketone peroxide, t-butyl peracetate and t-butyl perbenzoate.  Tertiary amines specified are N,N - dimethyl - p - toluidine, N,N - dimethylaniline, tri-n-butylamine, triethylamine and 2-diethylamino-ethanol.  Other components may be included in the compositions, e.g. plasticizer solvents for the peroxides such as dimethyl phthalate; thickening agents such as polystyrene, polymethyl methacrylate, poly-n-butyl methacrylate, polyester resins; fillers such as silica, montmorillonite clay, bentonite; pigments and dyestuffs such as anthraquinone dyestuffs; traces of catalytic metals, such as Fe, Co, Mn; inhibitors such as hydroquinone. The compositions are suitable for bonding metal surfaces, particularly in systems such as nuts and bolts.
Patent GB-699852-A (GB)
Title: Antihistaminic substances
Filed: 1948-10-15
Abstract: A process for the manufacture of antihistaminic compounds of the general formula <FORM:0699852/IV (b)/1> where Py represents a pyridine residue, unsubstituted or substituted by a halogen, alkyl or alkoxyl group, n is 2 or 3, R11 stands for a dialkylamino group, and R1 for a cycloalkyl, alkyl, aryl, aralkyl or heterocyclic group, any of which may be chlorinated or brominated and of which the three last may carry as substituents alkyl, alkoxyl or dialkyl amino groups, and for the manufacture of salts of such compounds, comprises condensing a pyridylmethane of the formula Py-CH2-R1 with a compound X-(CH2)n-R11 in which X stands for halogen in the presence of sodamide or potassium amide, or butyllithium, followed, if desired, by conversion of the resulting base into its salts.  The alkyl and alkoxyl groups contain not more than 5 carbon atoms.  The expression "heterocyclic group" includes methyl groups substituted by a heterocyclic nuclear residue, e.g. thienylmethyl.  In example (1), 3-phenyl-3-(21-pyridyl)-N,N-dimethylpropylamine is obtained by the reaction of 2-benzylpyridine and b -dimethylaminoethyl chloride in liquid ammonia in the presence of potassium amide. Similarly prepared are (2) 4 - (511 - bromo - 211 - thienyl) - 3 - (21 - pyridyl) - N,N - butylamine; (3) 4 - (511 - chloro - 211 - thienyl) - 3 - (21 - pyridyl) - N,N - dimethylbutylamine; (4) 3-(21-pyridyl)-N,N-dimethyloctylamine.  Salts with hydrochloric, hydrobromic, sulphuric, phosphoric, salicylic, tartaric, citric and lactic acids are mentioned.  Samples have been furnished under Sect. 2(5) of 3 - phenyl - 3 - (21 - pyridyl) - N,N - dimethylpropylamine in the form of its monohydrochloride, tartrate, monohydrogen oxalate, monohydrogen succinate, and monohydrogen maleate.  The 2- and 4-benzylpyridines are obtained by the condensation of benzyl chloride with pyridine in the presence of a catalytic amount of copper powder. They are separated by fractional crystallization.
Patent GB-680555-A (GB)
Title: Improvements relating to the manufacture of footwear by the "stuck-on" sole process
IPC: A43B13/32
Filed: 1949-10-20
Abstract: 680,555. Cementing shoe soles. LOTUS, Ltd., and MERCER, F. G. Oct. 20, 1950 [Oct. 20, 1949], No. 26957/49. Class 17 (ii). Leather soles, in the manufacture of shoes by the " stuck-on " process, are first softened by immersion by dipping in a volatile non-staining liquid harmless to leather from which the softened sole is removed and transferred to a conforming press. The sole is then permitted to regain its initial rigidity and a nitro-cellulose type of adhesive is applied. The adhesive is activated by immersing the sole by dipping it into a bath containing a volatile non-staining liquid harmless to leather and an activator for the adhesive employed. The upper is then applied to the sole in a usual shoe press. A mixture for softening the leather sole is given as methyl ethyl ketone 25 per cent, acetone 20 per cent, petroleum ether 25 per cent, "Lythene" (Registered Trade Mark) 10 per cent, benzol 15 per cent, all by volume. An example of a mixture for softening the adhesive is acetone 35 per cent, petroleum ether 25 per cent, ethyl acetate 10 per cent, methyl ethyl ketone 25 per cent, di-butyl phthalate 5 per cent, all by volume. Specifications 496,389, 680,524, 680,561, [Group III], and U.S.A. Specification 2,208,809 are referred to.
Patent GB-867846-A (GB)
Title: A process for the manufacture of polyacrylonitrile threads
IPC: D01F6/18
Filed: 1957-08-27
Abstract: Threads, which may be endless silk-like threads or shorter wool-like or cotton-like fibres, are produced by spinning a solution of an undecomposed polymer consisting wholly or mainly of polyacrylonitrile in a 56-65% by weight aqueous solution of nitric acid through a nozzle into a precipitation bath having a nitric acid content of 45\sB1% by weight, and withdrawing the resulting thread at a speed greater than the theoretical discharge speed of the polymer solution from the spinning nozzle.  The theoretical discharge speed V1 in m./min. is defined by the equation: <FORM:0867846/IV (a)/1> in which Q is the quantity of solution in cc./min. delivered by the spinning pump to the nozzle, Z is the number of nozzle apertures and D is their diameter in mm.  The freshly spun threads are preferably stretched in several stages, the stretching treatment being combined with the recovery of the precipitation both by washing the threads several times with more dilute acid and simultaneously stretching so that the total stretch between the extrusion nozzle and the final washing with water is at least 400% of the theoretical discharge speed.  The precipitation bath is preferably maintained at a temperature of -5 DEG  to -7 DEG C. but the subsequent more dilute acid washing baths, which may contain successively 15-20%, 4-6% and 0,5-2% by weight of nitric acid, and the washing water may be maintained at 20 DEG -30 DEG C.  The threads may subsequently be hot stretched, shrunk, crimped, cut into fibres and dried.  Specification 701,652 is referred to.
Patent GB-409998-A (GB)
Title: Improvements relating to the supply of solid pulverulent fuel to internal combustion engines
IPC: F02B45/02
Filed: 1933-10-02
Abstract: 409,998. Powdered-fuel engines. SCHICHAU GES., F., Schichaustrasse, Elbing, Germany. Oct. 2, 1933, No. 27056. Convention date, Oct. 10, 1932. [Class 7 (ii).] In an engine in which the supply of coal dust is controlled by the governor, firstly at the pulverizing mill b or, if previously pulverized, by a throttle at the bottom of a hopper g, and secondly by regulating the stroke of the fuelinjection valve e, an intermediate vessel c provides fuel to meet the demands of sudden acceleration. Regulation, instead of being at the mill b, is effected by varying the speed of the blower a and the two controls may be operated by separate governors. An agitating device is, preferably, provided in the vessel c, the coal dust being deposited therein by a cyclone fan i. When the fuel is previously pulverized, the blower a may exert a pressure or suction on the fuel in the hopper g.
Patent GB-170290-A (GB)
Title: Improvements in and relating to devices for cutting fruit and vegetables
IPC: B26B3/03
Filed: 1921-10-12
Abstract: 170,290. Priban, V., and Houdek, O. Oct. 12, 1920, [Convention date]. Cutting slices in succession.-A fruit and vegetable slicing appliance comprises side members 3, 4 between which are secured a stationary member 1 and a member 9, pivotally mounted at its outer end between the side members 3, 4 and having a slicing knife 12 secured to its inner end by screws 13, 14, 15. The member 9 is retained in position by a, bolt 16 and thumbscrew 17, the bolt 16 being housed, in the operative position, in a transverse groove 20 in the member 9. The groove 20 is sufficiently deep to allow the knife 12 to come below the edge of the member 1. The vegetables rest on the member 1 and are pressed against the knife 12, the slices passing between the knife 12 and the member 1, The slice thickness is varied by angularly adjusting the member 9. A handle 21, secured to the side members, is provided. In modifications, the side members are made. from metal strips or the side members and the handle are formed integrally. For cutting strips, a knife having cutting ribs 25 is provided.
Patent GB-702975-A (GB)
Title: Method of producing urea resin-glue films
IPC: D21H17/50
Filed: 1951-11-19
Abstract: 702,975. Resin-impregnated paper &c. GOLDSCHMIDT AKT.-GES., T. Nov. 19, 1951 [Dec. 8, 1950], No. 27110/51. Classes 96 and 140 Urea-formaldehyde glue-films for use, e.g. in glueing wood, veneers or plywood are made by impregnating paper, or fabric, with an initial condensate of urea and formaldehyde, optionally with other resin-forming constituents, e.g. ammonia, sodium bisulphite, thiourea, dicyanamide, biuret, phenol, acetanilide, sodium hyposulphite, sulphamide, and/or softeners, e.g. glycerine, or phthalic acid derivatives &c. and one or more hardeners, the paper &c. being thereafter dried by gradually raising its temperature until the material ceases to be tacky but remains in a preliminary state of condensation.
Patent GB-332444-A (GB)
Title: Improvements in or relating to cooking stoves
IPC: F24B1/24
Filed: 1929-09-06
Abstract: 332,444. Svenska Aktiebolaget Gasaccumulator. Oct. 11, 1928, [Convention date]. Cooking-stoves; draught, regulating; boilers, arrangement of.-In order to maintain, especially under adverse atmospheric conditions, the draught in solid fuel cooking-stoves provided with a metallic heat accumulator and fuel storage receptacle, the combustion gases are diluted with air, steam, or other gas introduced into the outlet flue, and having a lower specific gravity than that of the combustion gases. The stove shown comprises a fuel receptacle 3, round which the gases flow to a flue 8; hot-plates 1, 11, with covers 2, 12; a roasting-oven 13; a boiling chamber 14; a water heater 15, and an air chamber 19, both heated by conduction, for instance through a metal plate 16. The various parts are separated from one another and from the casing by insulating material. Heated air for diluting the waste gases passes to the flue 8 or 9 by a pipe 22 from the chamber 19, the supply to which is regulated by a valve 21. Alternatively steam, which may be obtained from the waterheater 15, may be introduced through a pipe 24 to the flues.
Patent GB-429463-A (GB)
Title: Improvements in or relating to recording processes in intermediate film television systems
IPC: H04N5/84
Filed: 1934-09-21
Abstract: 429,463. Television receivers. FERNSEH AKT.-GES., Goerzallee, Zehlendorf, Berlin. Sept. 21, 1934, No. 27216. Convention date, Sept. 22, 1933. [Class 40 (iii)] An intermediate film 2 is carried rigidly in the region of the position of exposure. The film is pressed against a supporting roller 1 of transparent material or against an endless band, Fig. 2 (not shown).
Patent GB-1390575-A (GB)
Title: Pulsed vacuum arc operation of field emission x-ray tube without anode melting
IPC: H05G1/60
Filed: 1973-06-07
Abstract: 1390575 Supply circuits for X-ray tubes FIELD EMISSION CORP 7 June 1973 [26 June 1972] 27246/73 Heading H2H [Also in Divisions H1 and H5] Pulsed X-ray apparatus comprises an X-ray tube 10 including an evacuated envelope 20 containing a field emission cathode 14 and an anode 12 which emits X-rays, a high voltage pulse generator 34 and an exposure control 44 which enables the pulse generator to supply to the anode a train of pulses 42 having a peak voltage of at least 250 kilovolts. The generator 34, which may be a Marx surge or Blumlein field reversal generator, is supplied by a 15 kilovolt D.C. source 36 and is triggered by an oscillator 40. The total exposure time is determined by a potentiometer 46 and the pulse repetition rate is determined by a potentiometer 40. The pulses preferably have a peak voltage of 350 kilovolts, a width of 30 nanoseconds and a repetition rate of 1000 pulses per second. The relatively high peak voltage increases the penetration depth of the electrons in the anode thereby reducing the anode temperature to enable bombardment of the anode with high energy electrons without melting the anode.