baber/WOPTO huggingface dataset:
Patent GB-878799-A (GB)
Title: Device for loading bore-holes with explosive
IPC: F42D1/10
Filed: 1958-01-29
Abstract: 878,799. Blasting equipment. NITROGLYCERIN A. B. Jan. 29, 1958 [Jan. 30, 1957; April 25, 1957], No. 2906/58. Class 68(1). Explosive charges are fed by fluid, preferably air, under pressure to the bottom of a deep borehole 10 through a pipe 12 of flexible, plastics, anti-static material. Longitudinal grooves 22 are formed around the internal face of the pipe to avoid creation of excessive fluid pressures being built up in the pipe should a charge become jammed in the pipe, which for most of its length is of an internal diameter only slightly greater than the charge. The paper wrapping of a charge is cut away by knives 18 in the lower end of the tube. The knives 18 have arcuate base portions 20 that lie between a liner 16 bonded to the end 14 of the tube 12. The charges pass from a hopper 32 into a breach mechanism 40, 42 by which they are thrust past a non-return flap valve into a compartment that leads into the pipe 12 and to which compressed air can be admitted. Specification 690,251 is referred to.
Patent GB-1358795-A (GB)
Title: Integrated circuits
IPC: H01L27/06
Filed: 1972-01-21
Abstract: 1358795 Semi-conductor devices SIEMENS AG 21 Jan 1972 [26 Jan 1971] 2911/72 Heading H1K An integrated circuit includes an IGFET formed in a semi-conductor body 1 and a complementary thin film IGFET formed on an insulating layer 11, e.g. of oxide or lacquer, on the body 1. The semi-conductor material of the thin film transistor may be monocrystalline or polycrystalline and preferably comprises, as shown, N- (or P-) type source and drain regions 12, 13 separated by a P(N)-type region 18 underlying the gate electrode. The preferred material for the body 1 is Si, while the layer 12/18/13 may be of Si, Ge, GaAs, InSb, InAs, CdS, CdSe, PbS or Te. The circuit may be a logic element or a bi-stable trigger stage. In the latter case two pairs of transistors connected together as shown are provided, the body transistors performing the switching function while the thin film transistors serve as load transistors. Selector transistors to drive the switching transistors are also provided in the semi-conductor body 1.
Patent GB-673951-A (GB)
Title: Improved hydraulic fluid
Inventor: MCLEAN DONALD HENRY
IPC: F15B21/06
Filed: 1949-02-03
Abstract: A lubricating composition comprises a water-soluble glycol, water, one or more non-gelling water-soluble polyoxyalkylene derivatives of sorbitan mono-laurate or mono-oleate, and an organic ester of an acid of phosphorus.  Glycols referred to are ethylene, propylene, butylene, diethylene and triethylene glycols. The preferred phosphorus esters are the C3-C6 alkyl phosphates, such as di- or tri-butyl or diamyl phosphates. Optional ingredients mentioned are foam inhibitors such as a silicone oil, and corrosion inhibitors such as sodium mercaptobenzothiazole, diisopropylamine nitrile, diethylethaneolamine, phosphoric acid and sodium nitrite.  In an example, a composition comprises a 55/45 (by volume) ethylene glycol-water solution to which is added 22 per cent by volume of a polyoxyethylene sorbitan mono-oleate, 1 per cent each of tributyl phosphate and sodium nitrite, 0.2 per cent sodium mercaptobenzothiazole and 0.0001 per cent of a silicone polymer. Specification 618,538 is referred to.
Patent GB-686495-A (GB)
Title: Improvements in or relating to the production of substantially alkali metal-free aluminium hydroxide
IPC: C01F7/141
Filed: 1951-02-07
Abstract: Alkali metal-free aluminium hydroxide is produced by simultaneously introducing an aqueous alkali metal aluminate solution and a mineral acid, e.g. hydrochloric, sulphuric or nitric acid, into a reaction vessel whilst maintaining the pH of the mixture at 5.8-8.3, filtering the slurry, e.g. on a continuous rotary filter, and washing the filter cake whilst still on the filter with water which may be adapted to pH 3-5, until less than 0.1 per cent alkali metal compound is left.  The alkali metal aluminate is produced by digesting bauxite or aluminium hydroxide with 40-60 per cent sodium or potassium hydroxide solution at 90-120 DEG C, and is diluted to 15-30 per cent Al2O3 content before use.  The washed filter pulp is mixed into water to a solids content of 5-10 per cent, the pH is adjusted to 5.5-7.5, and the slurry is again filtered and washed. The dried and calcined material may be used as a dehydrogenation catalyst, or it may be impregnated or spray-coated with platinum, vanadium pentoxide, calcium chloride, &c.  Alternatively, the filter cake from the second washing may be mixed with a slurry of gelatinous silica produced as in Specification 624,455, or oxides of chromium molybdenum or vanadium, and the mixture filtered and calcined.  Alternatively dissolved chromic acid or ammonium molybdate or vanadate may be added to the filter cake prior to drying.
Patent GB-149368-A (GB)
Title: Improvements in and relating to the scouring of grain
IPC: B07B1/46
Filed: 1919-02-08
Abstract: 149,368. Turner, P. Feb. 8, 1919. Scouring and polishing.-A scouring-machine for grain comprises a suspended tray covered with scouring material and having a gyratory motion similar to a plansifter. The scouring- trays c, Fig. 5, covered with emery sheets, are mounted in casings a, Fig. 1, suspended by rods c and actuated by a crank on the shaft d. Sieves g, h, i, j, k, l are mounted in the casing a between and below the trays e to separate the dust, seeds, and small grains.
Patent GB-921232-A (GB)
Title: Improvements in or relating to co-axial type cable and methods of manufacture thereof
Inventor: GILL RONALD YAXLEY
IPC: H01B11/18
Filed: 1960-01-28
Abstract: 921,232. Air-spaced cables. STANDARD TELEPHONES & CABLES Ltd. Jan. 27, 1961 [Jan. 28, 1960], No. 3098/60. Class 36. [Also in Group V] In the manufacture of an air-spaced coaxial cable an insulating material such as polythene for holding the conductors apart is extruded as a strip 32 of the form shown in Fig. 13A. The strip is passed through a controlled temperature zone to heated rollers 36, 37 which mould it to the form shown in Fig. 1. After cooling, the strip is passed through slit rollers 44 which divide the central web 5 and trim the outer webs 4, and the central conductor 7 is introduced to the position shown in Fig. 13C. The two parts 14, 15 of the strip are rotated and slid into water-cooled blocks 48, Fig. 13D, through which cooling air is blown to the outer edges of the part-strips, while the conductor 7 passes through a hole in a heater 49 which also supplies radiant heat to the webs 4, 5 and to the edges of the internal integral webs 6 of the partstrips. The part-strips and the conductor are then passed through pressure-rollers 52 where the part-strips adhere to each other to form a tube surrounding and adhering to the conductor. After removal of the projecting joined webs a strip 56 of a high conductivity metal such as copper is formed around the tube to provide the outer conductor, the edges of this strip being corrugated, if desired, to prevent overlap of adjacent edges. The cable may be finished with helically wrapped steel tapes. Instead of dividing the central web 5 before the introduction of the conductor the surface-heated strip may be folded about its central web over the conductor and the parts united before trimming the projecting parts of the webs. In another embodiment, Fig. 8, the insulating material is moulded to form two arcuate channels connected by a central web 21 which forms part of the walls of the complete tube when the strip is folded about its inner webs. These are of alternate types 22 and 25 so that a web 22 can fit into a slot 28 in the co-operating web 25 of the other channel. The projecting portions of the joined outer webs 20 are removed as in the previous embodiments before the application of the outer conductor. In all embodiments it is possible to provide longitudinal ridges on the insulating tube which serve to space the outer conductor from the tube, some of the ridges being provided by only partially removing the projection portions of the joined webs.
Patent GB-1131782-A (GB)
Title: Improvements in casings
IPC: H04B1/08
Filed: 1967-01-20
Abstract: 1,131,782. Cases for radios. INTERNATIONAL STANDARD ELECTRIC CORP. 20 Jan., 1967 [24 Jan., 1966], No. 3136/67. Heading B8P. [Also in Divisions H1 and H3] A casing for a portable radio comprises a single moulded piece of plastics material which has thinned fold portions so as to enable the piece to form a base, two sides 1, and two end pieces 35 and has projections adapted to engage in corresponding grooves so as to ensure that the lateral edges of the two opposite sides 1 fit together with the adjacent lateral edges of the two opposite ends 35, and a separate cover 7 which has flanges 33a and/or grooves 33 to engage and fit the upper edges 32 of the sides. The sides of the casing are hinged to the base via integral fold portions (19, Fig. 3, not shown), and the edges of each side 1 are formed with projections (27, Fig. 4, not shown), which cooperate with grooves (26) formed in the ends. The cover 7 is secured by bolts 13 which pass through the ends 37 of the handle 14, the ends 35 and into lugs 36 on the cover. A circuit plate 2 is secured in position by projections (28) on the casing ends and by battens (29, 30) on the base and battery housing 6 (Figs. 2 and 4, not shown). The base has a hinged door (38) with a sliding catch (42) to enable access to the battery housing 6 (Fig. 5, not shown). The casing material may be polypropylene.
Patent GB-1115694-A (GB)
Title: Clay improvement
IPC: C01B33/40
Filed: 1966-01-24
Abstract: Kaolin clay containing Ti is purified by incorporating into a slurry of the clay containing 10-50% solids an amount of a peptizing agent in excess of that required to obtain minimum viscosity, i.e. maximum dispersion, and allowing the impurities to settle.  Two methods are described: (a) a crude slurry is initially treated with e.g. 0.5-6 lb/ton of a peptizing agent (i.e. not excess) and fractionated.  The portion containing at least 90% minus 2m  particles, with a 20-45% solids content, is then mixed with the excess peptizing agent (5-25 lb/ton), allowed to stand, and drawn off from the deposit (Examples 1-47); (b) a crude slurry is fractionated and treated at the same time. The excess peptizing agent is added to the slurry, and on standing, coarse particles and impurities settle, and the slurry is drawn off. The treatment may be repeated with the addition of 0.5 to 1.5 lb/ton sulphuric acid (Examples 48-70).  In either case, the slurry is then flocculated with sulphuric acid (0.2-7 lb/ton) and/or aluminium sulphate (3-45 lb/ton), and filtered.  The clay may be bleached before or after treatment.  In all the examples, the filtered clay was reslurried to 22-32% solids and bleached with zinc hydrosulphite (8-15 lb/ton) with or without aluminium sulphate (0.8-6 lb/ton).  Peptizing agents exemplified are: sodium hexametaphosphate alone (Examples 1, 2, 6-9, 11, 12, 14, 17, 20-24, 28, 31, 39, 40, 45, 49, 51-55, 57, 65-66), with tetrasodium pyrophosphate (3, 59, 60, 62), with sodium hydroxide (4, 15, 18, 26, 32, 44, 61, 63, 64), and with sodium carbonate (47, 68); sodium hypochlorite (30); sodium silicate (35-38, 42, 70); tetrasodium pyrophosphate (34, 46); and an organic polyphosphate (41).
Patent GB-1048851-A (GB)
Title: Process for the preparation of pyruvate-kinase
Inventor: NEGELEIN ERWIN
IPC: C12N9/12
Filed: 1965-01-25
Abstract: A process for the production of a pyruvatekinase preparation of high purity from mammalian skeletal muscle comprises the following steps: (1) extraction with ice-cold water, (2) pptn. of unwanted protein with acetone and then pptn. of the enzyme with more acetone, (3) a second fractional pptn. with acetone, (4) heating a solution of the ppt. in 0.01 M. disodium EDTA solution to 56-60 DEG  C., (5) adsorption of the filtered solution from (4) on calcium phosphate gel, (6) elution with a phosphate buffer of pH 6.8, (7) pptn. with Am. sulphate, (8) recrystallization from 0.05 M. acetate buffer about 0.47 saturated w.r.t. amm. sulphate.
Patent GB-1216832-A (GB)
Title: Improvements relating to lubricators for gas compressors and gas pumps
Inventor: COPEMAN CHARLES HERBERT
IPC: F16N7/12
Filed: 1967-01-23
Abstract: 1,216,832. Separating liquid particles from gas and filtering liquid. J. T. WADE & SONS Ltd. 23 Jan, 1968 [23 Jan, 1967], No. 3292/ 67. Headings B1D and B1T. [Also in Division F2] Lubricant entrained in a gaseous discharge of a machine is separated, filtered and then recirculated at a controlled rate to lubrication points of the machine. In an embodiment lubricant-entrained gas is fed from a machine into a container 11, via an inlet 15 in a cap 12 of the container 11. The gas passes through an annular passage 23 formed between a lubricant outlet pipe 25 and a tubular member extending from the cap 12, and impinges on a deflector 27 which is attached to the pipe 25. The gas escapes through an outlet 16 in the cap 12 and the lubricant is collected in the container 11. The pressurised-gas forces the lubricant up the outlet pipe 25, which, having a filter 28 therein, supplies filtered lubricant to the lubrication points of the machine, via an outlet provided in a bush 33 which is secured into the cap 12. The pipe 25 has holes 35 formed therein which assist the flow of the lubricant. The filter may be a wick and has a pre-determined density so as,to control the rate of flow of the lubricant through the pipe 25.
Patent GB-187173-A (GB)
Title: Improvements in or relating to cranes
IPC: B66C23/82
Filed: 1922-02-04
Abstract: 187,173. Babcock & Wilcox, Ltd., and Hollick, F. W. Feb. 4, 1922. Jib cranes.-In cranes of the type described in Specification 3658/09, in which the load is carried by a lever pivoted at the head of the jib, shock-absorbing means are fitted between the lever guy and the crane frames. As shown the lever guy 5, which is distinct from the usual back guy 6, is attached to the main jib. The shockabsorbing means comprise a spring 1 fitted between the frame member 2 and a yoke 4 at the end of the guy 5.
Patent GB-100808-A (GB)
Title: Improvements in Receptacles for Treasury Notes, Bank Notes, and the like.
Inventor: LEAVER GEORGE HENRY
IPC: A45C1/06
Filed: 1916-03-09
Abstract: 100,808. Leaver, G. H. March 9, 1916. Covers.-A receptacle for bank-notes and the like comprises a case or cover 1 having arranged within it a set of guards 4 adapted to cover and protect the notes 7, and by their transfer to the pocket 8 to provide a record of the withdrawal of said notes. The guards. which are preferably numbered or lettered, and constructed of talc or mica, are arranged alternatively with the notes, and are held in position by guides 3 and spring clips 5. Additional leaves, preferably of talc or mica, are inserted at 11. and may serve as memorandum tablets.
Patent GB-1326704-A (GB)
Title: Exercising equipment
IPC: A63B69/06
Filed: 1972-01-26
Abstract: 1326704 Measuring muscular strength N CZECZERSKI 26 Jan 1972 [3 Feb 1971 12 Feb, 1971] 3578/72 Heading G1W [Also in Division A6] Exercising equipment for indicating and improving muscle power of the forearm of a user, comprises a base 1 on which is mounted a vertical rod 3 with a handgrip 7 capable of vertical adjustment on the rod 3, the rod being movable by a user grasping the grip 7 and exerting a force on the rod to move the rod against a resilient restoring force. In the embodiment shown the rod is resiliently bendable and provides the resilient restoring action. The rod carries a scale 4 which in conjunction with fixed pointer 6 gives an indication of the force applied at the grip. An indentation 8 is provided for the users elbow. In other embodiments Figs.3-5 (not shown) the rod 3 is pivoted and various arrangements of springs oppose its pivotal movement. The scale may be fixed and the pointer moveable with the rod 3.
Patent GB-1440893-A (GB)
Title: Composite moulds for sintering powder materials
IPC: B22F3/04
Filed: 1974-01-25
Abstract: 1440893 Isostatic moulding J MASNOV 25 Jan 1974 [2 Feb 1973] 3594/74 Heading B5A [Also in Division B2] A deformable mould for use in isostatio moulding of sintered powdered metal or ceramic articles comprises a casing which is self-supporting at room temperature but not at moulding temperatures (500‹ to 2000‹ F.) and a reinforcing outer layer bonded thereto which renders the casing self-supporting at moulding temperatures. Preferred casing material is borosilicate glass (softening at 1150‹ to 1200‹ C.) on to which maybe flame sprayed a rigid layer of molybdenum, stainless steel or alumina. The inside of the envelope may be lined by flame spraying with alumina, by introducing potter's clay into the envelope and drying, by flame spraying metal or metal powder, or by using a carbon suspension. In a further embodiment the casing is of stainless steel and is coated with alumina by plasma spraying.
Patent GB-1360962-A (GB)
Title: Apparatus for measuring in a continuous manner oxygen in a molten metal
IPC: G01N27/30
Filed: 1973-01-24
Abstract: 1360962 Electro-chemical analysis RST INTERNATIONAL METALS Ltd ME TALLURGIE HOBOKEN-OVERPELT and F D RICHARDSON 24 Jan 1973 [31 Jan 1972] 3615/73 Heading G1N A solid electrolyte dipper probe for measuring the oxygen content of a molten metal includes a solid electrolyte C mounted in a tube E which has a high resistance to mechanical stresses, thermal shocks and to chemical attack and which is extended at its lower end e.g. by about 1 to 5 cm. When the probe is dipped into a molten metal sample air is trapped in the tube E between levels X, Y and expands to blow away slag &c. which may be present on the metal surface and also conducts heat to the solid electrolyte tube, rod or plug C to pre-heat it. The liquid metal slowly rises to the level X as the air escapes either through the cement fastening the electrolyte C and refractory ring D to the tube E or through a hole provided in tube E at level X. In order to suppress stray e.m.f's which may be set up due to the refractory materials used for the cement and ring D a metal oxide such as nickel oxide may be incorporated in the cement in which the oxygen is held at a chemical potential approaching the chemical potential of the oxygen in the sample. The tube E may be steel, steel alloy, silica, alumina or silicon carbide.
Patent GB-372769-A (GB)
Title: Improvements in distillation vessels
IPC: B01D5/00
Filed: 1931-02-05
Abstract: <PICT:0372769/III/1> In an evaporator for liquids easily decomposable by heat, e.g. tar, oils, or sulphite liquor, heated internally by fire tubes a of upwardly tapering cross section and provided with upright ribs b, the liquid is distributed by a pipe c communicating with caps d so as to flow downwardly in film form between the ribs b. In order to prevent overheating at the tops of the fire tubes corrugated sheeting may be inserted between the tubes a and the ribs b and the space thus formed filled with molten metal.  The bubbles of vapour rising from the liquid collecting at the bottom of the still ascend vertically and transform the liquid filling of the still into a foamy mass.  The residues are led off through a pipe g.
Patent GB-643107-A (GB)
Title: Honing machine
IPC: B24B33/02
Filed: 1948-02-09
Abstract: 643,107. Electromagnetic switches. FULMER, C. A. Feb. 9, 1948, No. 3756. Convention date, May 4, 1942. Addition to 641,688, [Group XXIII]. [Class 38(v)] [Also in Groups XXIII and XXIX] In a time-delay switch 84, a switch 81 is closed by actuation of a solenoid 85 to release a lever 94. The actuation of the solenoid also expels air from a chamber 90 by movement of a diaphragm 88. Air re-enters the chamber through an adjustable inlet 92 causing the lever 94 to be depressed after a time-interval to open the switch 81. The switch 81 causes a valve to be opened in the hydraulic circuit of a honing machine, (see Group XXIII).
Patent GB-771760-A (GB)
Title: Improvements in and relating to electric lampholders
Inventor: WEITZEL STANLEY LIONEL
IPC: H01R33/02
Filed: 1954-02-09
Abstract: 771,760. Lamp-holders. LINOLITE, Ltd. May 9, 1955 [Feb. 9, 1954], No. 3852/54. Class 38 (1). A holder for a double-ended lamp comprises a base 10 and a pair of sockets 14 moulded integrally therewith. Each of the sockets has a cut-away portion 22 as in Specification 770,621 and carries a spring contact as in Specification 770,620. Covers 24 slidable in slots in the lamp-holders enclose the lamp caps in their operative positions. The upper surface of the base is concave and has a reflector 34 secured thereto which may carry a shade 32.
Patent GB-939779-A (GB)
Title: Rotary internal combustion engines
IPC: F02B53/00
Filed: 1962-02-01
Abstract: 939,779. Rotary internal combustion engines; liquid seals. F. ZIMMERN. Feb. 1, 1962 [Feb. 3, 1961], No. 3870/62. Classes 110 (2) and 122 (5). A rotary I.C. engine comprises coaxial multistart compressor and turbine screws 1, 7, Fig. 1, housed in a common casing 8, Fig. 8, and mounted on a common shaft 29 and each meshing with a pair of pinions 16, 15 respectively disposed in planes containing the shaft axis. Air admitted to the upper end of the casing is compressed by means of the screw 1 and the pinions 16 and passed to combustion chamber 9, Fig. 2, to which liquid fuel supplied by a pump 37 is continuously admitted through a pipe 11. The pump 37 is driven by the shaft 29 through worm and bevel gearing and a variable speed transmission 34. The gases of combustion pass into the threads of the screw 7 where they expand and rotate the screw. Pumps 35, 36 driven by the shaft 29 through the worm and bevel gearing and a variable speed transmission 33 circulate cooling and sealing liquid through the engine. The liquid enters the top of the casing 8 through inlets 47, 48 and forms a seal between the casing and the crests of the threads of-the screw 1. At the junction of the screw 1 with the screw 7 the liquid is thrown outwardly by centrifugal force and separated from the air, fins 4 directing the liquid outwardly and causing it to form a liquid ring 13. Liquid from this ring passes through grooves 6 to permit sealing of the space between the easing and the crests of the threads of the screw 7 and through ducts 14 to provide a liquid seal along the side of the pinion 15. To obtain a higher compression ratio the outer profile of the screw is made cylindrical instead of being generated by rotating a circular arc whose centre coincides with that of the pinions. Specification 923,042 is referred to.
Patent GB-611531-A (GB)
Title: Improvements relating to the manufacture of weatherproof garments
IPC: D03D23/00
Filed: 1946-02-08
Abstract: 611,531. Compound fabrics. HIGGINS, E. B. Feb. 8, 1946, No. 4045. [Class 140] [Also in Group VII] A weatherproof garment consists of two or more layers of fabric which are unconnected or connected only by stitching at widely-spaced intervals, the constituent yarns of the outermost layer being hydrophobic or water-repellent and those of at least one inner layer being water-repellent. The outer fabric may consist of soft-twisted or bump yarns woven into loose and fluffy fabrics, pile or raised cloth, brocade, figured and fancy twills, imitation caracule and astrakhan, or a knitted fabric.
Patent GB-830609-A (GB)
Title: Improvements in or relating to cricket bats
Inventor: CRAVEN GEORGE WILLIAM EDWARD
IPC: A63B59/08
Filed: 1956-02-10
Abstract: 830,609. Treating cricket bat blades. SLAZENGERS Ltd. Jan. 8, 1957 [Feb. 10, 1956], No. 4248/56. Class 140. The lower end of a cricket bat blade, or the upper end in addition to the lower end, is immersed in a preserving liquid and the striking face of the treated blade is submitted to a pressure rolling operation commencing at the treated end, thereby forcing some of the liquid along and beneath said face. One or more blades may be placed, preferably upright in preserving liquid in a sealed container and impregnation carried out by applying pressure, or vacuum followed by atmospheric or higher air pressure. The preserving liquids may be natural wood oils, oil-based compounds, such as tung or linseed oils containing a cobalt or manganese oleate drier and about 10% of a phenolic resin, or cellulose based solutions such as an acetone solution of plasticized nitrocellulose.