baber/WOPTO huggingface dataset:
Patent GB-1052644-A (GB)
IPC: G01F23/296
Abstract: 1,052,644. Measuring weight, density, electrically. AUTOMATION PRODUCTS Inc. Aug. 4, 1964 [Aug. 12, 1963; July 6, 1964], No. 31251/64. Heading G1N. The weight, density or specific gravity of a fluid flowing through a pipe 11 Fig. 1, (not shown), supported in a mounting 21 by sleeves 62, 64 is measured by vibrating the unsupported end of the pipe in a vertical direction about the mounting points 62, 64 by means of a rod, 54, coupled to an armature, 56, in an electromagnetic vibrating unit 16, and measuring the amplitude of vibration with an electrical detector unit 18; the natural frequencies of the joint assembly 16, 18 and of the mounting 21, being respectively substantially higher and lower than the natural frequency of the pipe, and the pipe being vibrated at a frequency removed from its natural frequency. The vibrator comprises a coil, 36, a core, 40, a non-magnetic sleeve, 32, and an armature, 56, mounted on an arm 55 extending from the rod 54, while a similar arrangement in the housing 18 generates a signal representing the amplitude of vibration. An excessive amplitude signal causes the vibrator to be de-energized, to avoid damage if a sudden considerable change occurs in the weight of the fluid. The tube 11 may be U-shaped (Fig. 1), or merely a straight tube, closed at one end Figs.4, 5, (not shown). Variations in vibration frequency due to temperature induced variations in elasticity of the pipe are compensated for by means of a weight 112, Fig. 7, (not shown), slidable on one of the limbs of the U, and acted upon by a spring whose elasticity also varies with temperature. Alternatively a T-shaped brace is attached to the U tube Fig. 6, (not shown) to stiffen it and reduce the said thermal effects. The natural frequency of the tube may be adjusted by shifting it in its supports 62, 64, and fine control is obtainable by means of a nut 58.
Patent GB-1052936-A (GB)
IPC: C07F7/08
Abstract: 1,052,936. Coatings. GENERAL ELECTRIC CO. Oct. 3, 1963 [Nov. 1, 1962], No. 38946/63. Headings B2E and B2K. [Also in Division C3] Surfaces of paper, textiles and ceramics are rendered hydrophobic by coating with a disiloxane of formula (C 6 H 5 ) (CH 3 ) (X) Si-O-Si (C 6 H 5 ) 2 X, where X is a hydrolysable group (e.g. halogen, alkoxy, aryloxy), and exposing to moisture.
Patent GB-1054048-A (GB)
IPC: H03G11/02
Abstract: 1, 054,048. Photo-electric limiter circuits. BRITISH BROADCASTING CORPORATION. Nov. 13, 1964 [Nov.29, 1963], No.47334/63. Heading G1A. [Also in Division H3] In a limiter circuit having one or more non- linear elements such as diodes 26, 27 in one arm of a bridge circuit the output from an amplifier 19 is controlled by pulses derived from a control current generator 30 which operates when the output exceeds a predetermined level to cause the A. C. resistance of the non-linear elements to change, so unbalancing the bridge circuit and causing a negative feedback signal to pass to the amplifier 19 so as to limit the output signal. The semi-conductor diodes 26, 27 may be replaced by photo-conductive cells in which case the control pulses would be obtained from a light source such as a lamp, laser or light-emitting semi-conductor replacing generator 30. Either or both diodes 26 and 27 can be replaced by two or more diodes connected in series, or a single diode may be used.
Patent GB-1054253-A (GB)
IPC: G03C8/06
Abstract: 1,054,253. Silver salt diffusion transfer processes. GEVAERT PHOTO-PRODUCTEN N.V. Aug.6, 1963 [Aug. 3, 1962], No.30989/63. Addition to 1, 042, 477. Heading G2C. A silver salt diffusion transfer process according to parent Specification wherein the silver halide emulsion layer is coated with a water-permeable layer so that on contacting the emulsion with transfer layer in the presence of the alkaline solution at least some of waterpermeable layer is transferred to the transfer layer. The water-permeable layer may have a binder of a cellulose or starch ether, starch, sodium alginate, gum tragacanth, polyvinyl alcohol, polyvinyl pyrrolidone, polyoxyethylene, polyacrylic acid or amide or a methyl vinyl ether/ maleic acid copolymer and may contain the pyrazolidone developer. The image-receiving material may consist of two layers, the top layer containing a filler and a binding agent as disclosed in Specification 1,054,252.
Patent GB-1054681-A (GB)
IPC: H02M9/06
Abstract: 1,054,681. Electric converting systems. LEAR SIEGLER Inc. April 2, 1964 [April 17, 1963], No. 13724/64. Heading H2F. [Also in Division H3] In a cycloconverter, switching is effected from the positive group P to the negative group N when the output wave 16, Fig. 4 (not shown) falls to a predetermined fraction KI p  of the average or peak current so that the changeover occurs near the time when the undistorted wave would cross the axis. Considering group P, the firing pulse generator 60 is controlled from frequency source 62 which is shunted by transistor 64. The cycloconverter output feeds the load over lead 21 forming the primary of current transformers 21, 22 which are arranged to provide unidirectional pulses at terminals 51, 52 on each alternate half cycle respectively, when the level of the positive and negative half waves exceeds a constant fraction of its half wave average value. A current proportional to the half wave average value is derived by bridge 39 and maintains over resistor R a current in the emitter circuit of transistor 46 thereby holding the potential of terminal 24 near that of terminal 71. When the current from secondary 23 exceeds the collector current corresponding to the emitter current in resistor R, the excess is diverted over diode 55 to output terminal 51 (see Division H3). The phasing is such that during a negative half wave on line 21, a positive pulse occurs at terminal 51, which causes transistor 64 to conduct and short the output of generator 62, the corresponding transistor 65 being non-conducting so that pulses are fed to the negative group N from the pulse generator 61. This condition continues until the current in line 20 falls sufficiently to terminate the pulse from terminal 51. The pulse generator 60 then operates so that the positive group P conducts and consequently a pulse appears at terminal 52 which causes transistor 65 to conduct and pulses are cut off from negative group N.
Patent GB-1084133-A (GB)
IPC: G01S7/00
Abstract: 1,084,133. Photo-electric transmission systems. ELLIOTT BROS. (LONDON) Ltd. May 3, 1965 [May 1, 1964], No. 18215/64. Heading G1A. Information is transmitted between two relatively movable members e. g. a turret and its mounting, by modulating it on to a beam of visible or infrared radiation transmitted from one member to the other. As shown, energy from a semiconductor lamp 7 is reflected by mirrors 8, 9 on to a solid state detector 10, signals being modulated on to the light emanating from the source and being demodulated after reception by the detector. The lamps and detector may not themselves be physically disposed along the axis a mirror, lens, or prism being axially disposed to direct the beam. The sources may for example be gallium arsenide stimulated to emit coherent or incoherent light, or other gas or solid state laser, a broad bandwidth being available.
Patent GB-1226010-A (GB)
IPC: B23D21/00
Filed: 1968-07-27
Abstract: 1,226,010. Cutting tubular material. PERKIN & CO. Ltd. 14 July, 1969 [27 July, 1968], No. 35972/68. Heading B4B. [Also in Division B3] A machine for cutting tubes 60 into lengths comprises a mandrel 22 for engagement with the inner surface of the tube, cutting discs 62, and friction rollers for engaging the outer surface of the tube to serve to hold the tube in position during cutting. The mandrel 22 is supported at one end by a bearing 24 and, at the other end, by a pivotable tail-stock bearing arm 25, the latter being movable to a position such that a tube can be fitted over the mandrel, by means of a toggle mechanism 30, 32, 36 actuated via a pneumatic ram 128. The friction rollers 42 are mounted on arms 44 which are secured to pivotable shafts 46 in order to bring the rollers into or out of engagement with different diameter tubes; the shafts are pivoted by means of links 48, 50 which are operated, via a yoke 52, by means of a screw-threaded spindle 54 rotated by an electric motor 56 and gear-box 58. The cutting discs 62 are mounted on a shaft 64 which is supported by a pair of levers 66 connected to a pivotable shaft 68. The levers 66 are connected to pneumatic rams 70 in order that the cutters may be lifted away from the mandrel when a tube is being fitted. The cutting shaft 68 is rotated by an electric motor 72 via a belt drive 74, 78. After the tube has been cut into lengths, the cut portions are removed from the mandrel by means of a pusher arm 94 which is mounted on a saddle 86 having rollers 90, 92 for engagement with a guide beam 88. The saddle is moved along the beam by a cable-and-pulley arrangement 84, 88, the pulleys 84 being mounted on a cylinder 82 which slides on a stationary piston 80. In a modification, instead of using separate prime movers for driving the various components, a single prime mover could be used and coupled to the components by gears and clutches. The sequence of operations may be automatically or manually initiated.
Patent GB-1227161-A (GB)
IPC: G01F11/26
Filed: 1968-05-06
Abstract: 1,227,161. Delivering measured quantities of fluent material. ENGLISH GLASS CO. Ltd. 29 July, 1969 [6 May, 1968], No. 21407/68. Heading B8N. A dispensing device for mounting in the neck of a container 1 comprises two passages 13, 14 separated by a partition 10, the passage 13 being closed by a wall 15 and communicating with the interior of the container via a single aperture 16. Both passages communicate with a chamber 12 and the passage 14 is open at the end remote from the chamber. An end cap 7 is a friction fit on wall 6 and the device is a friction fit in the container. In use the container is inverted and material therein flows into volume 17 of the passage 13 via aperture 16 which is tapered. Upon being righted the material in volume 17 flows into chamber 12, and upon further inversion the material in chamber 12 is dispensed via the passage 14. In the embodiment of Fig. 3, the partition 30 and a closure 27 for the passage communicating with the interior of the container are integral and form part of a body 26 which is a friction fit within outer housing 22.
Patent GB-1227301-A (GB)
IPC: B60G17/027
Filed: 1969-10-09
Abstract: 1,227,301. Road vehicle spring suspensions. GENERAL MOTORS CORP. 9 Oct., 1969 [23 Oct., 1968], No. 49671/69. Heading B7D. In a motor vehicle suspension comprising a coil spring 26 connected between each end of a rigid rear axle 8 and the vehicle frame 2, an auxiliary vacuum spring 28 is connected between the frame and axle in opposition to the spring 26 by means of a flexible cable 46 which acts in tension to oppose the action of the spring 8 but collapses under compression to avoid the creation of super-atmospheric pressure in the vacuum spring 28. The vacuum spring 28 comprises a cylinder 30 mounted on the frame 2, and a piston 32 sealed by a rolling lobe diaphragm 36. A levelling valve 42 is arranged to connect the vacuum spring 28 to the engine intake manifold when the vehicle load is below normal so that the vehicle rides at the design height. The spacing 52 of the coils of the spring 26 is arranged so that the spring has a progressive rate. Control arms 16 are pivotally connected between the frame 2 and brackets 10 on the axle 8. In another embodiment the piston of the vacuum spring has an annular sliding seal. The flexible cable may be replaced by a rod slidably connected at one end and having a stop to limit sliding movement in one direction.
Patent GB-1232589-A (GB)
IPC: G06V10/98
Filed: 1967-08-16
Abstract: 1,232,589. Character recognition. PLESSEY CO. Ltd. 15 Aug., 1968 [16 Aug., 1967], No. 37757/67. Heading G4R. In a character recognition system, recognition means delivers a recognition signal if one of a number of predetermined combinations of signal elements characteristic of a particular character is present in a digital signal produced from the character to be recognised, the character print quality being indicated in accordance with the particular one of that number recognised. The waveform from a single broad scan across a magnetic E13B character is clipped to two trains of positive and negative pulses respectively which are inserted into respective shift registers feeding recognition logic which detects particular combinations of positive and negative pulses and absences of pulses from seven positions along the waveform to produce character-identity signals. The recognition logic applies more and less demanding criteria, suitable for three different print qualities, in turn, the character-identity signals being compared with the known identities (preset) to set a respective bi-stable on agreement in each case. The three bi-stables control an error printer.
Patent GB-1232653-A (GB)
IPC: C11B9/00
Filed: 1968-05-17
Abstract: 1,232,653. Terpenic alcohols. BUSH BOAKE ALLEN Ltd. 12 May, 1969 [17 May, 1968], No. 23646/68. Heading C2C. C 10  allylic terpenic alcohols are prepared by reacting C 10  allylic terpenic halides with an aqueous medium in the presence of an inert solvent in which the terpenic halide and water are each soluble and in the presence of a cuprous halide. The reaction is preferably performed at a pH of 7 or above by the use of a buffer or mild base, e.g. sodium bicarbonate, using acetone as the inert solvent. In the examples myrcene hydrochloride (i.e. a mixture of myrcenyl chloride linalyl chloride, geranyl chloride and neryl chloride) is converted to linalol and α-terpineol using acetone/water/ NaHCO 3 /CuCl 2  and carvyl chloride is likewise converted to cis- and trans-carveols.
Patent GB-1233838-A (GB)
IPC: C08K5/21
Filed: 1969-08-29
Abstract: 1,233,838. Colour stabilized ethylene-vinyl acetate copolymers. GENERAL TIRE & RUBBER CO. 29 Aug., 1969 [25 Oct., 1968], No. 43225/69. Heading C3P. An interpolymer of ethylene and vinyl acetate comprising from 25 to 10 parts by weight of ethylene and from 75 to 90 parts by weight of vinyl acetate, is stabilized against discoloration upon heating by admixing with the interpolymer between 0À1 and 5 parts by weight of a carbamide, carbamamidine or thiocarbamide per 100 parts of the interpolymer. There may be included in the ethylene-vinyl acetate monomer mixture between 0À1 and 10 parts, per 100 parts of the said monomer mixture, of a further comonomer having one ethylenic double bond and-less than 15 carbon atoms in the molecule, typically 0À1-1À5 parts of acrylic acid. Many others are set forth. Carbamide: urea, dimethyl urea, dimethylol urea, ethyl methyl urea, phenyl urea, methyl phenyl urea, dihexyl urea, ethylene urea, dodecyl urea, methyl butyl urea, 1,3-propylene urea, butyl hexyl urea, methyl urea, tolyl urea, xylyl urea, p-hexyl phenyl urea, stearyl urea, 1-naphthyl urea, methyl decyl urea, semicarbazide and 1-phenyl semicarbazide. Carbamamidine: melamine, guanidine, dicyandiamide, S - trimethyl melamine, S-trimethylol melamine methyl melamine, diethyl melamine, pheny melamine, S-trihexyl melamine, 1-amino guanidine, 1-phenyl guanidine, 1,3-dimethyl guanidine, 1-ethyl, 3-octyl guanidine and 1-carbamyl- 3-methyl guanidine. Thiocarbamide: thiourea, dimethylol thiourea, dimethyl thiourea, phenylthiourea, m-tolyl thiourea, diethyl thiourea, methyl thiourea, benzyl thiocarbamide and 1- methyl - 3 - phenyl thiourea. The compounds may be used in the form of their acid salts, e.g. as the hydrochloride, nitrate or carbonate. Examples are directed to the stabilizing of an interpolymer containing 82À9% vinyl acetate units, 1À25% acrylic acid units and 15À85% ethylene units with the aid of trimethylol melamine, urea, dicyandiamide, thiourea, guanidine, melamine, semicarbazide hydrochloride, dimethylol urea, dimethyl urea and phenyl urea, respectively. In comparative experiments, the following additives were used instead: tetramethyl urea, tetramethylol urea, diphenyl urea and hexamethylol melamine, respectively.
Patent GB-1239301-A (GB)
IPC: B01J23/22
Filed: 1968-01-05
Abstract: 1,239,301. Oxidation catalysts. BRITISH STEEL CORP. 26 March, 1969 [5 Jan., 1968], No. 868/68. Heading B1E. [Also in Division C2] A catalyst consisting of SiO 2  gel particles carrying a glass of V 2 O 5  and K 2 S 2 O 7  is made by continuously introducing a preheated mixture of the SiO 2  gel particles and glass particles in a stream of air into the lower part of a fluidised bed of the same mixture already partially converted to catalyst maintained at between 300 and 400‹C., and continuously removing product particles from the top of the bed. The SiO 2  gel may have a surface area above 250m<SP>2</SP>/gm., an average pore diameter above 40Š and a pore volume of 0.5-1.0cc/gm. Specification 906,311 is referred to.
Patent GB-1251109-A (GB)
IPC: F16N7/38
Filed: 1969-09-25
Abstract: 1,251,109. Lubricating. CONSORTIUM DE RECHERCHES POUR L'APPLICATION DES FLUIDES. 25 Sept., 1969 [26 Sept., 1968], No. 47362/69. Heading F2A. A lubricating apparatus having a pump feeding lubricant from a reservoir to a machine, is provided with a device which controls the flow of lubricant such that lubricant is fed intermittently and at a predetermined pressure to the machine. A pump 6 driven by a shaft 3, is supported on a plate 2 above a lubricant reservoir 1. The outlet from the pump has a connection 7 with the machine, and a connection 7a with the control device. A reduction gear 11, driven by the shaft 3 via gears 9 and 10 drives a shaft 12 to which is secured a sleeve 13 which is journalled about a fixed shaft 17. A hollow cam-shaft 18 carrying two cams 19 and 20 is also journalled on the shaft 17. The cam-shaft 18 and the collar 13 are coupled by means of single-tooth dogs 21, 22 so that there may be angular play between them. Lubricant from the outlet 7a is fed via a duct 8 to a member 23 supported in the reservoir. The lubricant normally passes through the conduit 28, raises the ball 27 and passes out to the reservoir through a valve 29 which serves to maintain a small pressure in the duct 8 and hence in the outlet 7. At the lower end of the device 23 a safety valve is provided consisting of a ball 25 held in its seat by a strong spring 26. Acting on the ball 27 is a control rod 32 which has fixed at its upper end a cup 33 on which acts a spring 34 which also bears against a cap 35 of a cylinder 36 which can slide relative to the rod 32 and cup 33. A rocking element 37 pivoted at 38 also acts on the cap 35. The rocker 37 is activated by cam 19. The rocker acts to cause the valve 27 to close thereby increasing the pressure in the duct 8 and hence increasing the pressure in the supply to the machine. In order to provide a sudden increase in the pressure an hydraulic jack 52 is provided which is raised by the increased lubricant pressure in the conduit 28 transmitted by a duct 47 causing the edge 58 to engage the pawl 59, thereby accelerating the rotation of the cam-shaft. The rocker 37 is locked in position by the arm 42 until the lubricant pressure reaches the desired value when the pressure overcomes the force in spring 65 causing jack 64 to rise and release the locking arm 42, the rocker 37 and thereby open the valve 27. A manual override may be provided in the form of a push button 69 in a casing 70 which protects the mechanism The reservoir is provided with a filling plug 71, a visible level 72 and a level controller 73.
Patent GB-1251363-A (GB)
IPC: F27B7/00
Filed: 1968-08-07
Abstract: 1,251,363. Rotary furnaces and preheaters. D. WHITELEY. 12 Sept., 1969 [7 Aug., 1968], No. 37748/68. Heading F4B. Apparatus for the production of cement clinker comprises a rotary preheater 1 followed by a separately driven rotary kiln 2 with a burner hood 4, the preheater comprising a drum packed with refractory material formed by drilling or otherwise with a series of bores (10, Fig. 3) for the passage of the raw materials. In a modification (Fig. 2) used for the production of aggregates from clay, colliery shales, slate, ash clinker etc. in which the preheater and kiln are not coaxial they are joined by a casing (12) carrying a transfer shoot (7) for the charge material and formed with inlets (8, 8a) for hot and cool gases by which the preheater temperature can be controlled.
Patent GB-1258912-A (GB)
IPC: B05D1/00
Filed: 1968-06-18
Abstract: 1,258,912. Making troughs. IMPERIAL CHEMICAL INDUSTRIES Ltd. 18 Sept., 1969 [18 June, 1968], No. 29017/68. Heading B3A. [Also in Division A6] Two identical troughs 1 for coating a textile web with a liquid (Division D1) are manufactured by providing a mild steel tube with a continuous, low-pitched helical groove, providing the tube with two, longitudinal, diametrically opposed slots 2, winding a wire of circular section into the helical groove and soldering it in position and then splitting the tube into two equal portions. The resulting troughs may be provided with a plate at each end to retain liquid therein, an inclined plate 5 and a doctor knife 6.
Patent GB-1265052-A (GB)
IPC: C07C25/18
Filed: 1969-03-10
Abstract: 1,265,052. Halophenyl diketones and triketones. MERCK & CO. Inc. 10 March, 1969 [13 March, 1968; 17 Feb., 1969], No. 30939/71. Divided out of 1,265,051. Heading C2C. Novel compounds have the Formula (I) in which Hal is Br or I, n is 2 or 3, A is a C 5-6  carbocyclic or heterocyclic ring and each of X and X<SP>1</SP> is H, halogen, C 1-4  perfluoroalkyl, C 1-6  alkyl, C 1-4  alkoxyl, C 1-4  alkylthio, C 1-4  alkylsulphonyl or C 2-8  dialkylsulphamoyl and more than one substituent may be present on each ring. Compounds (I) in which n is 2 are obtained by oxidation of a monoketone by a mild oxidizing agent, e.g. selenous acid. Compounds (I) in which n is 3 are obtained by a series of steps including formation of a halobenzoyl aroyl methane, dibromination of the latter, treating the dibromo compound with sodium acetate and glacial acetic acid to replace bromo by acetoxy, hydrolysing to form a diaryl propane trione monhydrate, then heating under vacuum to effect dehydration and form the diaryl propane trione.  Monoketones (II) are obtained by condensing an X-substituted-2-halobenzonitrile with a Grignard X<SP>1</SP>-(A)-CH 2 MgCl followed by acid hydrolysis of the ketimine. Monoketones (III) are obtained by condensing a nitrile X<SP>1</SP>-(A)-CN with an X-substituted-2-bromo benzyl magnesium bromide followed by acid hydrolysis. The following preparations of intermediates are also described: 2-phenyl-3-(2-bromophenyl)- quinoxaline from 2 - bromobenzil and ophenylenediamine; 2-bromobenzaldehyde and acetophenone yield 2-bromobenzalacetophenone which is brominated to the dibromide; the latter is refluxed with methanol to give 3-(2- bromophenyl) - 3 - methoxy - 1 - phenylprop - 2- en-1-one which on refluxing with MeOH/HCl forms 2-bromobenzoyl-benzoylmethane; 2-bromo- 4-fluorobenzamide is dehydrated with to form 2-bromo-4-fluorobenzonitrile which is reacted with benzyl magnesium halide to form 2<SP>1</SP> - bromo - 41 - fluoro - 2 - phenylacetophenone; 2<SP>1 </SP>- bromo - 2 - (p - fluorophenyl) - acetophenone is similarly obtained.