baber/WOPTO huggingface dataset:
Patent GB-908950-A (GB)
Title: Linear count-rate meter
IPC: G01R23/09
Filed: 1961-05-19
Abstract: 908,950. Pulse ratemeter circuits. UNITED STATES ATOMIC ENERGY COMMISSION. May 19, 1961 [July 21, 1960], No. 18326/61. Class 40 (5). A pulse ratemeter circuit for radiation detection comprises a pulse height discriminator, a Schmitt trigger circuit converting the pulses to constant height and width, a mono-stable circuit converting them to rectangular pulses of selectable width and a diode switched source of selectable constant current feeding an averaging and meter circuit. Pulse height discriminator.-Comprises two transistors 9, 10, both with common emitter load 13 and both with different base bias derived from a potentiometer 1, 2, 3 shunted by voltage stabilizer diodes 5, 6, the base of transsistor 9 being the pulse input and transistor 10, normally blocked being rendered conductive only by pulses of amplitude exceeding the adjustable bias between taps 2, 3 whereupon collector current is passed to the emitter of a series connected transistor 14 with voltage limiting Zener diode 16 connected across its collector circuit. Diode 12 prevents reverse (leakage) base current and improves linearity of output. Schmitt circuit.-Comprises a conventional transistor pair 20, 28 with common emitter circuit 21, 22, 23, the collector of input, normally blocked, transistor 20 being connected to the base of normally conductive transistor 28 by R-C circuit 25, 26. A diode 30 in the collector circuit of output transistor 28 prevents negative pulses and oscillation. Monostable circuit.-The positive pulse input circuit includes diode 32 to decrease the recovery time of coupling capacitor 31. The output from normally blocked transistor 45 is applied back to the base of normally conductive transistor 40 through pulse width setting capacitors 60-63, discharge taking place through resistors 37, 36 (but not through the base of transistor 40 due to diode 35). Diodes 46, 38 provide negative feedback from the collectors of transistors 45, 40 to the bases to prevent their saturation. Constant current circuit.-The input includes voltage dropping Zener diodes 52, 53 to the base of driver and emitter follower transistor 50, having its collector voltage stabilized by voltage regulator diode 49. Pulses from the mono-stable circuit render normally negative point E positive so that normally conductive diode 70 is blocked and constant current passes from transistor 69 through normally blocked diode 71 to an averaging circuit 72-77 of selectable time constant and to meter 76. The constant current is selectable by switched emitter circuit resistors 64-66 ganged with pulse width selector switch 67B, and the base voltage of transistor 69 is stabilized by diode 80.
Patent GB-120906-A (GB)
Title: Improvements in Methods of and Apparatus for Electrical Welding.
Inventor: MURRAY THOMAS EDWARD
IPC: B23K11/00
Filed: 1918-11-09
Abstract: 120,906. Murray, T. E. Nov. 9, 1917, [Convention date]. Welding.-One of the bodies to be welded is heated electrically to a plastic state and the other body is pressed thereon. Fig. 1 shows one arrangement. A plate A rests on two electrodes 1 and 2 supported on a table 3 of insulating material. The other plate B is supported by electromagnets 7 carried on a rod 5. When the plate A is sufficiently heated, the rod is lowered and the plates A and B pressed together.
Patent GB-629259-A (GB)
Title: Improvements in laundry washing machines
IPC: D06F95/00
Filed: 1946-06-19
Abstract: 629,259. Washing-machines. CO-OPERATIVE WHOLESALE SOCIETY, Ltd., and MOORE, J. R. June 19, 1946, No. 18400. [Class 138 (ii)] A washing-machine comprises a rotary imperforate outer shell a enclosing a travelling endless band g of perforated or foraminous material which is provided with beaters hand is guided on rotatable supports so as to be caused to move in a substantially circular path, the band being arranged to pass over a pair of rollers f which are spaced apart to form the mouth of the washing space; by rotation of the supports, the band can be moved from a position in which the mouth of the washing space is uppermost to a lower position opposite the unloading position of the door b in the shell a, and then driven so as to discharge the goods through the door opening. The shell a has end trunnions d by which it is supported on pedestals, and is provided with a worm and wormwheel drive e at one end for rotating it through 90 degrees. The rollers f for the band are mounted on the end walls of the shell and the endless band g is disposed over the rollers so that it hangs downwardly in the shell, studs provided on the beaters h being arranged to engage guide channels a on the end walls of the shell. The band is adapted to be driven alternately in opposite directions during the washing operation by driving means led to the rollers f through a member rotatable on the axis of the shell. During washing, the space between the rollers f lies opposite the door b in the shell. For discharging the washed goods, the endless band is stopped, and the shell and band are rotated as a unit to a lower position in which the goods can be discharged through the door opening in the shell driving the band. Locking means are provided to prevent movement of the shell during the washing operation, and these may be controlled automatically, as by the closing of the door b or actuation of a starter switch.
Patent GB-139837-A (GB)
Title: An improved high speed tool steel
Filed: 1918-11-11
Abstract: 139,837. Kuehnrich, P. R. Nov. 11, 1918. Alloys.-A high-speed tool steel contains 4-10 per cent of molybdenum, 2-6 per cent of chromium, and 4-9 per cent of cobalt, the amount of cobalt varying with the amount of molybdenum. An example contains 6 per cent of molybdenum, 4 per cent of chromium, 6 per cent of cobalt, and 0.6 per cent of carbon. In some cases, a small proportion of vanadium, titanium, or uranium may be added.
Patent GB-188364-A (GB)
Title: Improvements in lubricants
IPC: C10M129/76
Filed: 1921-07-07
Abstract: Derivatives of polyhydric alcohols or phenols in which the hydroxyl groups are partially replaced by fatty or other acid radicles, are added to mineral oils or to saponifiable oils, fats, or waxes, to increase their lubricating and emulsifying properties, and to give them greater consistency.  The monoglycerides of oleic and lauric acids may be used, and in an example, 5 per cent. of mono- or diglyceride of oleic acid is added to a mineral lubricating oil.
Patent GB-596100-A (GB)
Title: Improvements in coupling devices for grease pump connections
IPC: F16N21/04
Filed: 1945-07-18
Abstract: 596,100. Grease - pump connectors. SENG, R. P. L. July 18, 1945, No. 18466. Convention date, May 31, 1941. [Class 99 (i)] A grease-pump connector consists of a fixed head 1 connected at 2 to a conduit 3 which delivers the grease, and a member 4 which can be given various settings relative to the head 1 and which is adapted to engage a lubricator nipple. The face 5 of the member 4 bears on the upper face of the nipple while the heel-piece 6 is open at 7 to engage therein the flange of the nipple ; a similar heel piece 15 on the other side of the member 4 engages in a groove on the head 1 to connect these two parts of the connector. This arrangement leaves the member 4 free to rotate relative to the head 1 about the axis X-X, which is that of a small piston 8 held by leather packing 11 and a spring 12, and contained in the bore 9 of the bottom portion of the head, the face 8a of the piston forming a nozzle to contact the inlet of the nipple. With the member 4 in any desired setting, it can be locked by means of the small bar 18 journalled on it, the bar being cylindrical but with a semi-cylindrical centre portion, and being such that a generator of the bar is presented against the flat portion 17 of the flange 14 when in locking position ; rotating the bar causes the notch to face the flange 14 with the result that the member 4 can be rotated ; a fork piece 20 resiliently pressing on the shoulder 21 of the member, in its locked position, operates the bar lock.
Patent GB-512280-A (GB)
Title: Improvements in means for securing glazing in metal window frames
IPC: E06B3/60
Filed: 1938-06-22
Abstract: 512,280. Glazing windows. HILLS PATENT GLAZING CO., Ltd., and HINCHLIFFE, E. D. June 22, 1938, No. 18535. [Class 20 (iii)] The glazing of a metal window frame d is effected by metal beading strips e which are so constructed that they can be attached to metal strips a, secured to the frame, by a simple sliding action. The strip a shown is welded to the frame and is formed with lugs b adapted to pass through apertures formed in the lower side of the hollow beading strips e. In mounting the strip e, the apertures are placed immediately over the lugs and the strip is then moved lengthwise so that the lugs engage with the inner face of the lower side thereof. Corner-pieces g of channel section are fitted over the ends of the beading strips.
Patent GB-789828-A (GB)
Title: Improvements in or relating to adhesive plaster materials and to the methods of and apparatus for making such materials
IPC: C09J7/20
Filed: 1955-06-27
Abstract: 789,828. Adhesive dressings. SCHOLL MANUFACTURING CO., Ltd., and TENNANT, W. March 7, 1956 [June 27, 1955], No. 18549/55. Class 81 (2). [Also in Groups VIII and XVII] Waterproof breathable adhesive coated materials which may be used for medical purposes are produced by drawing a backing material 1 from skip 2 over a driven cold backing roller 4 having a knurled or patterned surface with crests 24 having cutting edges 4a, separated by valleys 26. The crests make a scraping contact with a heated blade-piece 16 of doctor blade 12 which forms a trough 18 with the surface of roller 4 for adhesive substance 21. The inclined face 16a of blade-piece 16 presses the adhesive into contact with material 1 in valleys 26 and the cutting edges 4a and 16c simultaneously cut apertures 25 in material 1. The temperature difference between roller 4 and blade 12 is such that the adhesive at least partially sets before it can flow to seal apertures 25 which are small enough to prevent the passage of water but permit the passage of moisture vapour. Material 1 may then pass over and with its uncoated surface in contact with a series of rollers 3, 5 which are driven at high speed to tension the material and at least one of which is shaped or surfaced so that the material is uncreased and substantially unstretched transversely to the direction of feed, through a refrigerating chamber 6, e.g. temperature 28 to 32 C., to set the adhesive prior to passage over drawer rollers 110, 111 and winding on roller 11. Roller 4 may be cooled naturally or may be artificially cooled, e.g. by passage of cooling liquid through ducts therein, and doctor blade 12 may be heated to 160 C. by steam coils or electric elements 13. Backing material 1 may be a suitable textile fabric or a supported thermoplastic material, e.g. nylon, polythene or polyvinyl chloride. The adhesive may be a medicated or unmedicated rubber or rubber-like pressure sensitive adhesive, e.g. polyisobutene, polyvinyl alkyl ethers, combined with resins, e.g. colophony or softeners, e.g. lanolin. The coated material may be interleaved with a shield sheet, e.g. starched gauze, muslin treated with polysiloxanes, which may be provided with pads of resilient materials, e.g. lint, felt, foam latex, which may be treated with medicinal agents, e.g. aquaflavine, boric acid.
Patent GB-1529653-A (GB)
Title: Process for preparation of phenols
IPC: C07C37/50
Filed: 1977-05-03
Abstract: 1529653 Preparation of phenols MITSUI PETROCHEMICAL INDUSTRIES Ltd 3 May 1977 [7 May 1976 (2)] 18566/77 Heading C2C A process for producing phenols comprises replacing by a hydroxyl group the isopropyl group of an aromatic hydrocarbon ring substituted by an isopropyl group in one step in the liquid phase using molecular oxygen or a gas containing molecular oxygen in the presence or absence of a solvent, and in the presence of an aromatic mercaptan having an acid dissociation constant (pKa) of less than 7À8 the preferred mercaptan is a phenyl mercaptan having 1 to 3 substituents selected from cyano, acetyl, nitro, halogen, halo-C 1-4  alkyl, C 1-4  alkylsulphonyl and sulphonic acid groups.
Patent GB-1085893-A (GB)
Title: Improvements relating to fluid operated actuators
Inventor: ALEXANDER GEORGE FAWCITT
IPC: F15B9/08
Filed: 1964-05-05
Abstract: 1,085,893. Fluid-pressure servomotor systems. WALLACE & TIERNAN Ltd. April 6, 1965 [May 5, 1964], No. 18648/64. Heading G3P. A fluid-pressure actuator comprises a differential piston 1 having an output rod 6, the chamber 35 on the smaller area side being fed with fluid from an inlet 34 and the chamber 44 on the larger area side being connected to the chamber 35 or exhaust under the control of valve 28 on a rod 38. The rod is moved by a pressure signal fed to the space 43 between interconnected diaphragms 14, 15 of different effective areas such that the signal acts against a lever 18, pivoted at 19 and loaded by a spring 23. The opposite end of the spring is mounted through a rod 49 on a U-shaped carrier 51 pivoted at 52 and having a limb 64 which is engaged by pins 61, 62, 63 on a rotatable plate 59, the pins effectively forming a cam surface. The plate 59 is connected by a rod 66 and a universal joint 68 to an assembly comprising the lever pivot 19 and diaphragm assembly which is fixed to the piston 1 through a rod 10. In operation, a change in the signal pressure causes actuation of the valve 28 to move the piston 1. The movement of the piston carries with it the pivot 19 of lever 18 and also the joint 68 and thus rotates plate 59, which, through the pins 61, 62, 63, rotates the U-shaped carrier 51. The two ends of the spring 23 are thus adjusted until the force on the lever 18 again balances the new signal pressure and the arrangement of the pins is such that the piston 1 moves a distance proportional to the square root of the change in the signal pressure. The signal pressure may be provided in response to a pressure differential across an orifice in a flow path and since this pressure differential is proportional to the square of the flow, the output is proportional to the flow. The output member 6 may control the displacement of a pump 7 feeding additive to the flow path. It is also stated that the member 6 may control a valve or work-table.
Patent GB-1098162-A (GB)
Title: Magnesite-chrome refractories
Inventor: WOODHOUSE DENNIS
IPC: C04B35/42
Filed: 1965-05-04
Abstract: A magnesite-chrome refractory composition comprises magnesite, chrome ore, added calcium oxide, or a precursor thereof, and optionally an additional silica-bearing material, said composition containing a total of 0.8-2.5% by wt. SiO2 and the molar ratio of total CaO : total SiO2 being at least 1.5 : 1.  The composition may be fired at below 1700 DEG  C. to give a brick having a modulus of rupture at 1260 DEG  C. of at least 1000 p.s.i.  The precursor of CaO is a substance which yields CaO at less than 1700 DEG  C., e.g. CaCO3. The additional silica-bearing material may be free SiO2, e.g. quartzite, or a magnesium silicate, e.g. serpentine, and preferably passes a 72 B.S. sieve.
Patent GB-1150392-A (GB)
Title: Improvements in Liquid Fuel Injection Devices for Free Piston Internal Combustion Engines
IPC: F01B11/08
Filed: 1967-04-24
Abstract: 1,150,392. Fuel injection pumps and systems; free piston pumps and engines. SOC, ANON, ANDRE CITROEN. April 24, 1967 [May 9, 1966j, No. 18804/67. Headings F1A and F1B. A free piston I. C, engine in which the piston 7 is connected to hydraulic pump pistons 2, is fed with fuel from an injection pump which is hydraulically actuated towards the end of the compression stroke of the piston 7 by an extension 22 on the piston 2 entering a bore 21 displacing liquid which acts through passages 33, 34 and chamber 24 on a piston 23 having an extension 23b acting as a fuel injection pump to discharge fuel drawn in through inlet valve 27 to a passage in the member 16 housing an injection valve 20 loaded by a spring 40 and discharging into a combustion chamber 17 formed in the piston 7. Injection stops when piston 23a uncovers port 35. The return stroke of the piston 23 is ensured by incoming fuel pressure and spring 36 and is limited by an abutment 39 which is actuated through levers by a corresponding piston rod 50 on the opposite side of the engine as shown in Fig. 3. The piston 46 operates in a cylinder 47 connected by passage 48 to a chamber 45 which the piston 2 enters at the end of its stroke so that the piston 46 is moved inwardly thereby reducing the quantity of fuel injected. The passage surrounding the valve stem 19 is kept under pressure by reducing the diameter of the portion 37 of the piston 23 so that pressure in the cylinder 1 acts to bias the piston 23 in the direction of the pressure stroke. The hydraulic pump comprises inlet and outlet valves (3, 4 Fig. 1 not shown) each having an associated damping chamber (C). Each cylinder 1 has an accumulator (E).
Patent GB-319821-A (GB)
Title: Improvements in or relating to jacketed milk and like containers
IPC: B65D81/38
Filed: 1928-06-28
Abstract: 319,821. Aktieselskabet Frederiksberg Metalvarefabrik, and Rasmussen, A. P. June 28, 1928. Jackets; lids.- Vessels for containing milk &c. and comprising an inner vessel 2 of aluminium or other light metal with an outer steel or like wall 1 spaced therefrom by insulation 14 such as cork dust, have the joint 12 between the vessel and wall placed vertically beyond the insulation of the jacket and lid and formed, as by bending both parts over a ring 13, so that the contents only come in contact with the material of the inner vessel. The bottom 4 of the outer wall may be riveted to the outer wall at 5 and be supported by a ledge 7 of a base ring 6. A perforated or intact cork &c. plate 15, formed in one or more parts, supports the bottom of the inner vessel, and an integral or separate side ring 16 of cork may be fitted around the bottom. The bottom 4 may be omitted, in which case the plate 15 is supported by a ledge. The lid comprises an inner wall 18 of aluminium &c. and an outer steel &c. wall 19 having a flanged rim fitting over the rim of the vessel, with an interposed packing ring 21, so as to protect the joint 13 from direct sun's rays.
Patent GB-981612-A (GB)
Title: Machine for producing laminated structures by winding tape on a mandrel
IPC: B65H54/64
Filed: 1961-05-24
Abstract: 981,612. Covering cores by winding. BENDIX CORPORATION. May 24, 1961 [June 23, 1960], No. 18809/61. Heading B8G. A machine for winding tape on to a mandrel 35 comprises two winding arms 38, 40 mounted respectively on coaxial shafts 17, 18, means 46, 48 at the ends of the winding arms for supporting the two ends 50, 54 of the mandrel axis, means 30 for rotating the shafts 17, 18 to effect an end-over-end tumbling movement of the mandrel, means 56, 58, 60, 62 to rotate the mandrel about its axis, and means for dispensing tape on to the mandrel during rotational and tumbling movement thereof, said dispensing means being traversed back and forth in directions perpendicular to the plane of tumbling movement of the mandrel. The tape 70 is drawn off a supply reel 76 via any known tensioning device, the reel 76 being mounted on a framework 78 that can be rocked sideways to cause a traversing action. The arms 38, 40 are balanced by counterweights 64, 66. Specification 957,021 is referred to.
Patent GB-990944-A (GB)
Title: Improvements in and relating to composite pigments and the manufacture thereof
Inventor: COOPER ERIC LESLIE
IPC: C09B67/22
Filed: 1963-05-13
Abstract: A method of making a composite pigment comprising the steps of forming an intimate mixture of the particles of at least two dissimilar pigments by dispersing said pigment particles in an aqueous medium by the addition of a water-soluble dispersing agent in the form of an anionic surface-active agent consisting of a sulphate of an alcohol, an aliphatic sulphonate or an aromatic sulphonate and subsequently flocculating the resultant mixed pigment by the action of a water-soluble metallic salt which forms with said dispersing agent an insoluble salt of the organic radical of the dispersing agent which uniformly coats the surfaces of the mixed pigment particles and agglomerates.  The process may be applied to organic pigments, inorganic pigments or mixtures containing both of these types.  In examples, mixtures of cadmium yellow and an anthraquinone vat dye; titanium dioxide, anthraquinone vat dye and benzidine yellow; cadmium red, quinacridone red and anthraquinone vat dye; titanium dioxide, phthalocyanine green and an azo yellow; titanium dioxide and phthalocyanine blue; cadmium yellow, cadmium orange, carbon black and titanium dioxide; and quinacridone red and cadmium red are flocculated by aluminium sulphate solution.  Barium, calcium and strontium halide solutions are used as flocculant in other similar examples.
Patent GB-732310-A (GB)
Title: Electrical multivibrator circuits
Inventor: CLAYDEN DAVID OSWALD
IPC: H03K3/04
Filed: 1951-11-08
Abstract: 732,310. Pulse-generator circuits. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Nov. 8, 1951, No. 18845/53. Divided out of 732,221. Class 40 (6). An asymmetrical multivibrator which is synchronized by pulses applied across the common cathode resistor comprises a parallel resonant circuit in the anode circuit of one valve having a period substantially equal to an integral number of the applied pulse period. The Figure shows a multivibrator comprising valve V2 to which synchronizing pulses are applied across the common cathode resistor from the clock pulse generator 121 via the cathode-follower pulse sharpener stage V1. The constants of the multivibrator are such that the right-hand section of valve V2 conducts for one microsecond and the left-hand section for 2 microseconds in each cycle. The resonant circuit L2, C2 which is tuned to 333 kc./s. and is damped by resistor R2 adds a sinusoidal component to the waveform (Fig. 2(c), not shown) at the grid of the right-hand section of the valve to ensure that the multivibrator is synchronized only by the pulses across the cathode which occur at the required positions. The output pulses from the multivibrator are applied via cathode-follower stage V3 to output terminal A.
Patent GB-669283-A (GB)
Title: Improvements in or relating to arrangements for operating an electric discharge lamp from a d.c. supply
IPC: H05B41/231
Filed: 1948-07-14
Abstract: 669,283. Exciting dynamo-electric machines; supply systems for space discharge lamps. GENERAL ELECTRIC CO., Ltd., NELSON, E. H., and WILLOUGHBY, A. H. Jan. 26, 1950 [July 14, 1948], No. 18915/48. Drawings to Specification. Classes 35 and 38 (iv). In order to dispense with the resistive ballast usually provided in the operating circuit of an electric discharge device, particularly a highpressure lamp, supplied from a D.C. generator the latter is arranged to have a steeply-falling voltage-current characteristic such that the slope about the operating point on the voltagecurrent characteristic of the lamp is greater than that of the lamp characteristic and thereby ensures stability. The generator preferably comprises specially shaped interpoles acting as main flux diverters to obtain the required falling characteristic and a transformer having its primary connected in the lamp operating circuit and its secondary in series voltage opposition with the shunt exciting field is preferably included to ensure stable operation against transient fluctuations in the output current.