baber/WOPTO huggingface dataset:
Patent GB-123695-A (GB)
Title: Process for Making Waterproof Cement and the Product thereof.
Inventor: OLSON HANS MARTINUS
IPC: C04B24/36
Filed: 1918-09-26
Abstract: 123,695. Olson, H. M., and Westell, F. J. D. Sept, 26, 1918. Cements, Portland and Roman, treating after manufacture; compositions containing lime, gypsum, &c.-Cementitious material which sets in water and has an alkaline reaction is rendered waterproof by spraying into it, during the grinding process of its manufacture or during re-grinding, an oleaginous or bituminous substance. The cement may be Portland cement, lime, gypsum, hydraulic lime, natural cement, oxychloride of magnesium, alkaline silicate, &c. The waterproofing substance may be animal, vegetable, or mineral oil, either liquid at the ordinary temperature or solid or semi-solid, such as wax, tallow, or paraffin; or it may be natural or artificial bituminous material, viscid when heated or dipssolved in a solvent such as mineral oil or any of the fatty acids. A preferred mixture is 75 parts residue mineral oil and 25 parts beef fat or stearine. The waterproofing material is added in quantity insufficient to destroy the alkaline properties of the cement. A preferred proportion is 1 per cent.
Patent GB-804070-A (GB)
Title: Dimerization of polypropylenes
Inventor: COHEN CHARLES ANSCHEL
IPC: C07C2/20
Filed: 1957-05-17
Abstract: Propylene polymers of 12 to 24 carbon atoms are prepared by dimerizing propylene polymers of 6 to 12 carbon atoms at 0-100 DEG C. in the presence of a preformed boron trifluoride-ether complex and excess boron trifluoride.  The starting polypropylene may be a narrow fraction of a simple propylene polymerization product. Specified ethers which may be used in the complex are dimethyl, diethyl, diisopropyl, methyl ethyl and methyl tertiary butyl ethers.  The amount of complex used may be 1 to 10 weight per cent of the polypropylene to be dimerized.  Excess boron trifluoride is maintained by passing the gas through the reaction mixture. Pressures of 1 to 10 atmospheres may be used to maintain liquid phase conditions.  Batch or continuous operation can be used.  The catalyst can be decomposed with water and the oily product separated from the aqueous layer and fractionated to obtain the desired dimer from unconverted material and any other products formed.  Examples illustrate the dimerization of a C9 and a C12 propylene polymer cut using a complex of ethyl ether and boron trifluoride containing 45 weight per cent of boron trifluoride at 60-70 DEG  C. for four hours, boron trifluoride gas being slowly passed through the reaction mixture throughout the reaction period.
Patent GB-1081510-A (GB)
Title: Well drilling method
Inventor: LISTER JOHN B
IPC: E21B21/00
Filed: 1966-04-07
Abstract: 1,081,510. Drilling fluids. CHEVRON RESEARCH CO. April 7, 1966 [April 8, 1965], No. 15769/66. Heading E1F. An aqueous dispersion of paraffin wax is introduced into a well drilling operation at least 0.0075 lbs. of wax/sq. foot of bore hole in order to prevent sloughing. The dispersion may be added to the drilling fluid or may be introduced when a shale stratum is reached.
Patent GB-1395337-A (GB)
Title: Amplifiers
IPC: H03F1/32
Filed: 1972-04-06
Abstract: 1395337 Transistor amplifier circuits GOLDRING Ltd 3 April 1973 [6 April 1972] 15804/72 Heading H3T In an audio frequency amplifier the emitters and collectors of two pairs of complementary transistors Tr1 Tr2 and Tr3, Tr4 respectively are connected as a bridge with the series connected transistors of the respective pairs disposed in the common emitter mode, the load being connected between the points of interconnection of the complementary transistors of the respective pairs, and the transistors are biased to conduct at all times and conduct a quiescent current which is a very small proportion of the current flowing in them when they are driven to peak power. In the embodiment a suitable bias is derived from resistors R1-R3 and R6-R8 respectively while emitter circuit resistors R4, R5, R9, R10 render the arrangement insensitive to variations in the characteristics of the transistors. Push -pull inputs are ap - plied over capacitors C1, C2 and C3, C4, while the base biases are stabilized by means of Zener diode D1 in conjunction with resistors R11, R12.
Patent GB-355705-A (GB)
Title: Improvements in or relating to electrical measuring systems and apparatus therefor
IPC: G01R23/00
Filed: 1930-05-23
Abstract: 355,705. Frequency measurements. STANDARD TELEPHONES & CABLES, Ltd., Columbia House, Aldwych, London.- (Reeves, A. H.; 46, Avenue de Breteuil, Paris.) May 23, 1930, No. 15894. [Class 37.] Apparatus for measuring alternating-current frequency, the duration of a current impulse, or a small interval of time comprises a number of thermionic tube relays interconnected so that the system contains a predetermined number of different states of stable equilibrium, the system being changed from one state to the next in order by a current impulse and the particular state of equilibrium at any moment determining the number of impulses received. The relays are arranged in n pairs, so that the total number of impulses that may be counted is 2n. The apparatus comprises cascaded pairs of thermionic tubes 1, 2, Fig. 1, arranged so that two states of stable equilibrium occur when their respective impedances are a maximum and minimum. The tubes may be resistance coupled as described in Specification 344,936, [Group XL]. Fig. 3 shows a system for measuring an unknown frequency applied at I, N. FD comprises a frequency divider of the type described in Specification 296,827, [Class 37, Electricity, Measuring &c.], and is connected to the frequency counter system OC through a clock-controlled switch ES which may be of the type described in Specification 356,111, [Group XL]. The clock C may be an astronomical one. Small time intervals, or current impulse durations, can be measured by interconnecting a switch ES between a stable oscillator and the frequency counter system, the applied current impulse opening and closing the switch ES and the counter OC recording the number of oscillations during this time. The time interval is calculated from the known frequency. Fig. 5 shows a further arrangement for measuring or obtaining a small time interval, an auxiliary thermionic tube S being connected to the frequency counter elements A, C, E and to a switch W. When the key K is closed an impulse is transmitted to the terminals O, T and the frequency counter A .. E is connected. After a time depending upon the setting of the frequency counter, a further impulse is received at the terminals O, T, and this interval between the two impulses can be adjusted to any value of time in terms of one counter period.
Patent GB-1013871-A (GB)
Title: Distillation system of the vapour-compression type
Inventor: LOEBEL FREDERICK ARTHUR
IPC: C02F1/04
Filed: 1963-04-23
Abstract: 1,013,871. Distillation apparatus of the vapour-compression type; distilling saline water. AQUA-CHEM Inc. April 23, 1963, No. 15925/63. Heading BIB. Liquid such as saline water is submitted to distillation in an apparatus of the vapourcompression type having a heat-exchanger comprising tubes 38, 40, inclined at a small angle to the horizontal, the saline water being preheated and sprayed downwardly from nozzles 36 over the outer surface of the tubes of the heat-exchanger. The vapours evolved from the saline water are compressed in compressor 45 and introduced into the tubes of the heat-exchanger where the vapours condense, the distillate being withdrawn by pump 62. Some of the concentrated brine withdrawn from hot-well 14 is mixed with fresh feed and conveyed to spray-manifold 32. The remainder of the concentrated brine is discharged from the system via control valve 68 and conduit 74. The rate of spraying of the mixture of recirculated brine and raw feed from the nozzles 36 is preferably such that the weight of vaporizable liquid flowing over the tubes at any time is from 4 to 10 times the weight of distillate being produced inside the tubes. In order to inhibit scale formation, a chemical additive is added to the saline water. Tetrasodium pyrophosphate, sodium tripolyphosphate or sodium hexametaphosphate may be used as additive when the water is vaporized at a temperature of about 190 ‹F.; but when the vaporization-temperature is higher, e.g. 212 ‹F., sulphuric acid, hydrochloric acid, sodium bisulphate, sulphamic acid or citric acid is used as additive. The saline water, which is introduced into the system through conduit 10, flows through heat-exchanger 64 where it is heated by the distillate and by the waste-brine, which are discharged from the system via conduits 75 and 74 respectively. The warm saline water is treated with additive, to prevent scaling, from tank 150; and the treated water is sprayed down vessel 90, which is provided with perforated trays or with packing, in countercurrent flow to gases, which de-aerate the water. Gases from the tubes of the heat-exchanger pass through conduit 102 into the vaporizing chamber; and the gases next flow into the de-aerator 90 through conduit 100. The pH of the de-aerated water is adjusted, if necessary, by addition of alkali from tank 153; and the water then flows to hot-well 14 via conduit 99. The water-to-besprayed is withdrawn from hot-well 14 by pump 22, and is raised to boiling-temperature in heater 26. The treatment of sulphite liquors is mentioned.
Patent GB-379397-A (GB)
Title: Improvements in the manufacture and production of colour lakes
IPC: C09B69/06
Filed: 1931-06-01
Abstract: Colour lakes are manufactured by precipitating a basic dyestuff (which may contain acid groups) with mineral heteropoly acids (complex acids containing phosphorus, molybdenum, silicon, and tungsten, such as phosphotungstic, phosphomolybdic, silicotungstic, molybdophosphotungstic and silicomolybdotungstic acids), together with organo-heteropoly acids (complex acids containing the radicles of gallic and tannic acids, such as gallomolybdic and gallotungstic acids).  The precipitation may be effected by adding to a solution of the dyestuff a solution containing both the mineral and the organo-heteropoly acid, or the acids may be added in separate solutions, simultaneously or successively.  The precipitation may take place in the presence or absence of a substratum such as blanc-fixe, and in the presence or absence of dispersing or softening agents such as Turkey-red oil. In examples: (1) Brilliant Green crystals Y is precipitated by means of phosphotungstic acid and potassium digallomolybdate in the same solution, Turkey-red oil being added immediately after the precipitation; (2) Rhodamine 6GDN conc. is similarly precipitated; (3) Methyl Violet 2B is precipitated by means of the same compounds, but added successively in separate solutions and without the addition of Turkey-red oil; (4) Brilliant Green crystals Y is precipitated by means of phosphomolybdic acid and potassium monogallotungstate in the same solution; (5) Brilliant Green crystals Y is precipitated by means of a mixture of a solution of phosphotungstic acid with a molybdotannic acid solution obtained by adding molybdic oxide to a suspension of tannic acid in hot water rendered alkaline with potassium carbonate; (6) Disulphine Green B is dissolved in an aqueous solution of phosphotungstic acid and potassium digallomolybdate, the solution is added to a suspension of aluminium hydrate and the lake precipitated by the addition of barium chloride solution; (7) Brilliant Green crystals Y is precipitated by means of phosphomolybdotungstic acid and potassium digallomolybdate in the same solution.
Patent GB-120260-A (GB)
Title: Improvements in or relating to Telephone Transmitters.
Inventor: BROWN SIDNEY GEORGE
IPC: H04R21/02
Filed: 1917-11-02
Abstract: 120,260. Brown, S. G. Nov. 2, 1917. Microphones.-In order to render the vibrations of a transmitter diaphragm aperiodic, the diaphragm is mounted on a paper or celluloid annulus and is connected to a member which vibrates in granular material contained in a velvet-lined chamber. The ends of the transmitting battery are connected to the walls of the chamber and its middle point to the vibrating member. The diaphragm A, Fig. 1, is mounted on a paper or celluloid annulus a, and is connected to a central microphone member C by a rod c. The member C vibrates in a chamber D containing a granular layer on each side of the member and provided with a velvet lining d. In a differential transmitber, the member C, Figs. 1 and 2, is provided with thin carbon plates c' connected to the middle point of the battery E, the terminals of which are connected to carbon plates d' at opposite ends of the microphone chamber.
Patent GB-913116-A (GB)
Title: Improvements in baling presses for loose materials
Inventor: BRIMELOW BRIAN PETER
IPC: B30B9/30
Filed: 1960-05-06
Abstract: 913,116. Baling presses. ENTWISLE & GASS Ltd. May 5, 1961 [May 6, 1960], No. l6026/60. Class 94(1). In a baling press a sliding cover E is actuated by a mechanism which forces it on to its seat with a wedging action, the cover and its actuating mechanism F being connected by a device allowing sliding movement perpendicular to the direction of movement of the cover such that inaccuracy in their alignment will not affect the seating of the cover. Material to be compressed is introduced into the press box A and a pneumatic ram F is actuated to force the wedge shaped cover E beneath the plate G so as to form a tight fit with the edges of the press box A The ram F is connected to the cover E by a sliding joint comprising a crosshead H sliding in a slot in cover E. The sliding surfaces may be of antifriction material or may have a roller mounted between them.
Patent GB-749242-A (GB)
Title: An improved method of making templates or contour boards
Inventor: TAYLOR ROLAND FOSTER
IPC: B29C43/22
Filed: 1951-07-06
Abstract: In producing the shaped surface of an aircraft wing or other article a full size model of the wing &c., is prepared and from this model are made the jigs in which the wing is shaped and assembled.  The jigs include contour boards, and the present invention is a method of making the contour boards.  A board is first cut to approximately the correct contour and is then set up in the correct position on the model with its roughly cut edge close to the surface it is desired to reproduce.  The varying space between the edge of the board and the contour of the model is then filled by casting into it plastic, e.g. cold-setting polyester resin.  The resin sticks to the edge of the board and forms an accurate reproduction of the contour of the model, and to ensure that it does stick, the edge of the board is recessed or roughened.  To obviate roughness of the cast edge, the model is coated with a stripping agent such as wax and the wax is coated with one or more coats of resin or plastic paint which will combine with the resin of the edge.  Metal plates may be screwed to the boards to prevent spreading of the resin and to help to keep it in place after it has been cast.
Patent GB-254097-A (GB)
Title: Improvements in spring assembly for upholstery
IPC: A47C27/04
Filed: 1925-06-22
Abstract: 254,097. Suehoff, L. A., and Nachman, F. A. June 22, 1925. Spring surfaces.-A spring assemblage for upholstery comprises a fabric casing, shown inverted in Fig. 1, divided into individual cells by longitudinal and transverse fabric partitions 4, 7. The structure is made rigid by a wire base formed with a border wire 9 and intersecting wires 10, 11 which pass through hems 6, 8 in the cell partitions. Other intersecting wires 14 are placed midway between the wires to form supports for the springs which are preferably inserted in a collapsed condition before the end wall 3 of the casing is secured. To facilitate the insertion of the springs, slits or openings 15 are left between the short partitions 7 and the long partitions 4. The wires are bent below the plane of the base at their points of intersection to protect that fabric from contact with its supporting surface.
Patent GB-113767-A (GB)
Title: Improvements in or relating to Bridles for Animals.
Inventor: AAS PETER RASMUS
IPC: B68B1/06
Filed: 1917-11-05
Abstract: 113,767. Aas, P. R. Nov. 5, 1917. Controlling restive animals.-Relates to bit-less bridles of the kind in which levers connected with the reins operate in such a manner as to draw together the nose-strap and chin-strap to press upon the nose-bone. According to the invention, each lever A is pivoted on a rosette 5, suspended from the cheek strap, by a pin 1. A cross-bar B is fixed by the split pin 2 to the pin 1 and by end pins 4 to the lever A, the p'ins 4 entering holes in the lever. The ends of the nose-strap 9 and chin-strap 8 are connected to the appliance by enlarged parts 7 of the pins 4. The. lever arm is not curved in the usual manner, but is somewhat straight, and when in normal position is inclined forwardly. The rein may be attached by the slit 10 or by the slit 13, according to the purchase required.
Patent GB-157686-A (GB)
Title: Improvements in safety means for automatic pistols and similar fire-arms
IPC: F41A17/36
Filed: 1920-06-16
Abstract: 157,686. Rydberg, B. A. B. June 16, 1920. Safety appliances.-Relates to safety devices adapted to lock the trigger when the magazine is removed, and consists in a stop device for preventing the re-insertion of the empty magazine. In the construction shown, the safety device of an automatic pistol comprises a sliding bolt 6, 10 controlled by a spring 9 and by a lever 12 bearing against the front wall of the magazine. When the magazine is removed the safety bolt is lowered into its locking position, shown in Fig. 1, and the lever 12 is turned about its pivot 15 so that its lower end 16 projects into the magazine space and forms a stop to prevent the empty magazine from being re-inserted. The cartridge lifter 27 is slotted at its front end so that it can pass over the lever 12 without operating it. When a loaded magazine is inserted the lever 12 is pressed inwards by the top bullet.
Patent GB-530056-A (GB)
Title: Apparatus for feeding and applying closure caps to bottles, jars and like vessels
IPC: B67B3/064
Filed: 1939-06-02
Abstract: 530,056. Capping bottles &c. DAVIES, L. E. June 2, 1939, No. 16329. [Class 125 (ii)] Caps slide along an inclined runway 11 towards bottles R. On opposite sides of the base of the runway rest adjustable guides 55, 56 having at their ends cap-retaining stops 65. Means for adjusting the guides simultaneously both longitudinally of the runway and laterally toward or from each other comprise (a) links 57 pivotally connected to the guides and to fixed rails 40, 41, and (b) a shaft 58 having right and left hand threads engaging threaded bushings 60, 61 on the guides. The shaft 58 runs through a block 63 slidable longitudinally in a depression in rail 41. The caps are placed by hand on a table 12 where their undersides are frictionally engaged by an endless chain 16 which feeds them to the inclined runway 11. Guides 28, 29 are adjusted simultaneously longitudinally and laterally by means 31, 32 similar to those (57, 58) described above. The guides 28, 29 are connected to the guides 55, 56 by flexible strips 33. To prevent the caps' riding on top of each other vertically adjustable strips 25, 54 bear on the tops of the caps. An advancing bottle R engages the overhanging edge of the lowermost cap C in the runway 11, lifts the centre of the cap slightly so that it rides over the stops 65, and passes on with the cap thereon. During removal of the cap from the runway rollers 80, 81 on a swing- ing arm 82 press with decreasing force at first on the side and then on the top of the cap. As the cap emerges from the runway it is pressed downwards by a roller 70, presser 71 and plate 72. Specifications 383,744 and 432,463 are referred to.
Patent GB-476644-A (GB)
Title: Process for the manufacture of iodinated hydnocarpus acids or their esters
Filed: 1936-06-11
Abstract: Hydnocarpus acids and their esters are converted into iodo compounds by treatment with elementary iodine in the presence of an alkylene oxide, acetaldehyde, crotonaldehyde, a glycol ether, piperidine, methylal, paraformaldehyde or carbon disulphide.  The latter substances facilitate the iodination and permit of its being effected at normal temperature.  The products possess therapeutic properties. Alkylene oxides mentioned are ethylene, propylene and cyclohexene oxides and epihalogen hydrins. Examples are given of the iodination of (1) gynocardic acid ethyl ester dissolved in ethylene oxide, or dissolved in ethyl alcohol or acetone containing a little ethylene oxide; (2) the ethyl or methyl esters of the fatty acids of gynocardia or hydnocarpus oil dissolved in methanol, ethyl alcohol or acetone to which some ethylene oxide, acetaldehyde, epichlorhydrin, crotonaldehyde, piperidine or carbon disulphide has been added; (3) gynocardic acid benzyl ester, obtained by heating the mixture of fatty acids of hydnocarpus fats with benzyl alcohol, in methanol containing ethylene oxide.  The samples furnished under Sect. 2 (5) comprise the iodinated products derived from (1) the fatty acids of hydnocarpus oil in presence of ethylene oxide; (2) the fatty acids of hydnocarpus oil in presence of piperidine; (3) the fatty acids of gynocardia oil in presence of acetaldehyde; (4) the ethyl ester mixture of the fatty acids of gynocardia oil in presence of ethyl glycol ether; and (5) the ethyl ester mixture of the fatty acids of hydnocarpus oil in presence of piperidine.
Patent GB-1463620-A (GB)
Title: Roller train
IPC: E02D3/026
Filed: 1974-04-16
Abstract: 1463620 Road and like rollers ABG-WERKE GmbH 16 April 1974 [16 April 1973] 16484/74 Heading B7H In an articulated roller train comprising a drive section 14 connected by an articulated steering coupling 12 to a compaction roller 10, the drive section has two axles equipped with rubber-tyred wheels 20, 22 spaced so that their tracks overlap and correspond to the track width of the roller 10. The wheels 22 on the axle remote from the roller are steered in synchronism with turning of the sections about the coupling 12 so that wheel track overlap is maintained when travelling around curves. Each wheel 20, 22 of the drive section 14 is driven by an individual hydraulic wheel hub motor. The roller 10 may be equipped with a smooth, toothed or sharp-footed roller and may include a vibratory mechanism. The drive section 14 can be used alone or coupled to different roller sections.