baber/WOPTO huggingface dataset:
Patent GB-707027-A (GB)
Title: Improvements in or relating to arrangements for supplying phase modulated electric oscillations
IPC: H03C3/30
Filed: 1952-03-24
Abstract: 707,027. Phase and frequency modulation. GENERAL ELECTRIC CO., Ltd., and BRYDEN, J. E. March 12, 1953 [March 24, 1952], No. 7532/52. Class 40 (5) A carrier wave of medium frequency, which may be stabilized by a crystal, is phase modulated by mixing the carrier with a wave of much higher frequency to produce one or both side frequencies, applying the modulation to vary the phase of one or both side frequencies in a travelling-wave tube or a pair thereof, and feeding the outputs to a mixer tube to supply a difference frequency, which is phase-modulated and is of a mean frequency equal to, or determined by, the medium frequency source. In the diagram, Fig. 2, the medium frequency of 30 mc/s is supplied by a crystal controlled source 23 which mixes with, or amplitude-modulates, an oscillation of, say, 4,000 mc/s supplied by a source 22, which may be a magnetron. The resulting upper and lower side frequencies are selected by filters 24, 25 (which may be resonant cavities), and applied to travelling-wave tubes 26, 27 to which the modulating signal is applied in push-pull to effect phase modulation in opposed senses. The modulated outputs are mixed at 29 to produce a phase-modulated wave whose mean frequency is double that of the source 23, and is independent of variations in the frequency of the source 22. In a modified circuit, only one of the side frequencies is used and only one travelling-wave tube, the phase-modulated output of which is reduced to the medium frequency of say 30 mc/s by mixing with the output of the source 22, and selection of the lower sideband, Fig. 3 (not shown). If the audio modulating-signal is fed through a network that deemphasises the higher components, the output wave is in effect frequency-modulated by the signal. Fig. 1 shows a suitable arrangement of a travelling-wave tube modulation. The v.h.f. input is applied through a transverse wave guide 9, is picked up by a wire 7 and traverses the helix 4 to an output wave guide 10. An axial electron beam is set up within the tube 6 by a gun anode 3 and passes through the helix 4 to a collector electrode 5. When a modulating signal is applied at 14 to the anode 3, the velocity of the electrons is varied, and the v.h.f. wave picked up by the output guide 10 is correspondingly shifted in phase.
Patent GB-162485-A (GB)
Title: Improvements in and relating to rotary washing and screening apparatus
IPC: B07B1/18
Filed: 1920-03-13
Abstract: 162,485. Martinez, H. March 13, 1920. Washing-apparatus with screens; rotary washing-apparatus.-Washing or screening apparatus comprises one or more rotary chambers a, preferably of triangular or square cross-section, divided lengthways into compartments b by partitions c which extend from the. periphery of the chamber towards the central shaft c, the shelves being attached at each end of the chamber to a boss d on the central shaft e and to longitudinal T-bars f attached to the outer ends of radial supporting- arms g, these T-bars also being attached to and supporting the casing of the chamber a. Propelling-plates j, attached either to the shelves c, or to the inner periphery of the casing of the chamber a or both, pass the materials through the chambers. When used as a washing-apparatus, the rotary chamber a, which may be composed of unperforated plating, is disposed in a trough supplied with washing liquid and the shelves c are made of perforated plate. As screening-apparatus a number of the rotary chambers are mounted end to end on a central shaft, the periorations of the shelves corresponding in size to those of the casing and the perforations increasing in size from the feeding chamber to the exit chamber. A retaining- flange m may be provided around the opening at the inlet end of both the washing and the screening apparatus. In a combined washing and screening apparatus, a rotary washing-chamber and a number of screening-chambers are arranged on the same horizontal shaft supported in suitable bearings.
Patent GB-846924-A (GB)
Title: Improvements relating to dry gas meters
Inventor: CHARLES JOHN ARTHUR
IPC: G01F3/22
Filed: 1957-03-07
Abstract: 846,924. Gas meters. UNITED GAS INDUSTRIES Ltd. March 6, 1958 [March 7, 1957], No. 7619/57. Class 54. A dry gas meter has a valve 11 of substantially rectangular form with a single central recess 10 cooperating with a central exhaust port 15 of a valve grid 6 having transfer ports 17 equally spaced about the exhaust port and the valve is given a movement of revolution in one direction about an axis in the middle of the valve grid but is constrained, to a substantial degree, against rotation. As shown in Fig. 1, a crank 7 on or linked to the crank spindle 1 of the meter carries two pinions, or an elongated pinion 14, in bearing brackets 13 and the pinion 14 meshes with a pinion 5 fixed in relation to the valve grid and with a pinion 12 fixed in relation to the valve. The spindle 1 passes through the pinion 5 and the crank pin 8 passes through the pinion 12, the latter turning on the pin 8 through the same angle as the crank but in the opposite direction so that there is no rotation of the valve. The axis of the pinion 14 may lie directly between the axes of the spindle 1 and pin 8 or may be offset, thus allowing the length of the crank to be shortened. As shown in Fig. 3, restraint against rotation is provided by two links 21 which are pivoted at 22 in brackets 23 and have the same throw and angular disposition as the crank 7. The limbs 21 may be replaced by other linkages such as pairs of pivoted links arranged as in a drafting machine. In Fig. 4, the restraint is imposed by a rod 28 and links 25 which are slotted at either the rod end (as shown) or the valve end and are pivoted at the other end; alternatively, particularly where the valve is not truly rectangular, a rod extending from the valve may have its free end guided by a pin in a guideway or a slot engaging over a pin.
Patent GB-1368856-A (GB)
Title: Yarn lap support
IPC: B65H75/24
Filed: 1972-02-18
Abstract: 1368856 Expandable lap support INDUSTRIE AG ALLEGRO 18 Feb 1972 [18 Feb 1971] 7672/72 Heading D1T [Also in DivisionF2] In a yarn lap support, three or more equispaced lap support members 12 are each connected by parallel, pivotable levers 15, 16 to spindle 1 rotatably mounted on spindle 10. Members 12 are urged outwardly by spring 28 via conical member 26 slidable on spindle 1 and abutting ends 24 of members 12. Ends 24 slide in grooves 25 in member 26, and may each carry a transverse pin engaging in opposing grooves in the walls of grooves 25. Flange 31 limits the expansion of members 12. Conical, expansion-limiting members of different sizes, may be inserted within flange 31. Links 15, 16 may be replaced by leaf springs secured to the shaft and to members 12.
Patent GB-273216-A (GB)
Title: Improvements in or relating to film winding mechanism for kinematographic apparatus
IPC: G03B21/43
Filed: 1926-09-08
Abstract: 273,216. Levis, B. G., Lengenfeld, H., and Wurm, W. Sept. 8, 1926. Kinematograph apparatus.-In film-winding mechanism comprising two spool carriers d loosely carried on a shaft f, on, opposite sides of a driving disc g, and driven alternatively, in opposite directions, by means of pawls i and ratchet wheels h, the disc consists of a grooved pulley, and the pawls i are separately mounted at opposite ends of a shaft k secured to the pulley. Springs l bear on the pawls i.
Patent GB-623262-A (GB)
Title: Improvements relating to automatic telephone systems
IPC: H04Q3/42
Filed: 1946-02-01
Abstract: 623,262. Automatic exchange systems. SIEMENS BROS. & CO., Ltd., and CHRISTIAN, D. A. Feb. 1, 1946, No. 7767/48. Divided out of 623,184. Drawings to Specification. [Class 40 (iv)] In a system in which outlets from a selecting switch are segregated in groups, the last outlet position of a group or plurality of groups serves also as a busy position and when the switch reaches this position it is stopped and a busy signal is initiated, but if the outlet is wanted and is free, the operation of a test relay nullifies the initiated busy signal. The invention is described with reference to apparatus identical with part of that described in Specification 623,184. Specifications 623,177 and 623,263 also are referred to.
Patent GB-171649-A (GB)
Title: Improvements in toy projectors
IPC: F41B7/08
Filed: 1921-03-11
Abstract: 171,649. Rauer, P. R. March 11, 1921. No Patent granted (Sealing fee not paid). Projectors and projectiles.-A projector and projectile for use as a top or in playing games consists of a body portion 1 having a cylindrical bore 3 into which the projectile 16 may be fitted tightly, as shown, and containing a spring 11 which can be compressed .by a plunger 6. The projectile is provided with a rod or dowel 15, which extends into the bore 3 when the projectile is in place, and with wings 12, 13 to prolong its flight. In use, the projectile is inserted tightly in the bore and the body 1 is held in the hand. The plunger 6 is pushed inwards to compress the spring, and its forward end makes contact with the dowel 15. Further pressure disengages the projectile from the bore and permits it to be shot out by the spring.
Patent GB-240730-A (GB)
Title: Improvements in smoking devices
IPC: A24F1/28
Filed: 1925-03-23
Abstract: 240,730. Chance, G. W. March 23, 1925. Tobacco pipes.-A device employed in smoking tobacco or medicinal substances comprises a tube 1 closed at one end by a longitudinally bored plug 8 and at the other by a perforated cap 5. A spiral 15 connected with a staple 16 in the plug 8 serves, on rotation of the plug, to feed the aubstance to be smoked into the tube 1 or to loosen it therein. A mouthpiece 12 is formed integral with or detachable from the plug 8. A condensing chamber 14 may be formed in the mouthpiece 12. The tube 1 is preferably of wood and is formed with a liner 2 of aluminium or the like. The exterior of the tube 1 is provided with a perforated leather or like heatinsulating ring 17. When used medically the end having the cap 5 may be inserted into one of the nostrils.
Patent GB-1275521-A (GB)
Title: Stabilized suspension fertilizer
Inventor: GERHARDT WILFRIED
IPC: C05G3/00
Filed: 1970-02-18
Abstract: 1275521 Suspension fertilizers KNAPSACK AG 18 Feb 1970 [21 Feb 1969] 7796/70 Heading C1B A stabilized NPK, NP or PK suspension fertilizer has an overall nutrient concentration of at least 20 grams, preferably more than 30 grams, per 100 grams suspension fertiliser therein and contains a neutralization sludge stabilizer obtained in the neutralization of crude phosphoric acid produced by wet-processing treatment of phosphate ores with the use of an alkali liquor and/or ammonia. The neutralization sludge consists of water, sodium phosphate, potassium phosphate, ammonium phosphate, aluminium phosphate, iron phosphate, titanium phosphate, calcium phosphate, magnesium phosphate, according to the origin of the phosphate ore and customary contaminants such as fluoride, sulphate, organic substances, chromium, vanadium, manganese. A process for the manufacture of the above suspension fertilizers comprises mixing the neutralization sludge at 50-90 C. with agitation with a mineral acid, preferably phosphoric acid, and introducing the resulting mixture together with fertilizer salts and ammonia into a residual portion of a previously prepared fertilizer suspension at a rate such that the pH-value of the suspension is maintained between 5 and 9.
Patent GB-170798-A (GB)
Title: Improvements in and relating to the production of imitation candles
IPC: C11C5/00
Filed: 1921-03-11
Abstract: 170,798. Gems, J. A. March 11, 1921. Candles, imitation. - Imitation candles have an outer coating of wax reinforced by fibres which permeate the whole of the wax. In one modification, a tubular core 1 of metal, plaster, or wood, &c., is covered with felt, flannel, or similar fibrous substance 2 the surface 3 of which is teased with a wire brush. A coating of wax 4 is then applied by moulding or dipping. The solid core may be dispensed with and the flannel &c. stiffened by impregnation with plaster. In another modification, loose fibres such as cottonwool are incorporated with the wax. Any suitable wax or wax-like substance may be used, and a resin such as colophony may be added for hardening purposes.
Patent GB-492596-A (GB)
Title: New or improved materials for enhancing the growth and improving the quality of plants
IPC: C05B7/00
Filed: 1937-03-17
Abstract: A material for enhancing plant growth or quality comprises an alkaline mixture of a plurality of water-soluble mineral double salts and a water-insoluble adhesive carrier.  The material may be applied directly to the soil or may be applied to seeds, tubers, roots or the like by crating them with a composition containing the mixture, e.g. an aqueous emulsion.  Suitable adhesive water-insoluble carriers include rubber or rubber-latex, plant, saps having sticky water-insoluble ingredients, resins or gums. Suitable water-soluble double salts include metallic ammonium phosphates, e.g. those of sodium, potassium, lithium, magnesium, manganese, zinc, copper, and iron (ferric), or soluble double salts of silica and ammonia.  In addition, the material may contain other inorganic ingredients such as potassium phosphates, ammonium nitrate, sodium nitrate, potassium iodide, soluble cobalt salts, soluble fluorides, radio-active salts, bromine salts, compounds of nickel, selenium, fluorine or sulphur, carbon, kieselguhr, calcium carbonate, wood ashes, an alkaline mineral water containing sodium, potassium, magnesium and calcium bicarbonates with sodium chloride and sulphate, an earthy water containing magnesium and calcium bicarbonates, sodium, potassium, magnesium and calcium sulphates, iron carbonate and silicic acid and an Aachen water containing potassium sodium and ammonium chlorides, sodium iodide, bromide, fluoride, sulphate, bicarbonate and hydrosulphide, lithium, calcium, strontium, magnesium, copper, manganese, iron and zinc bicarbonates, calcium hydrophosphate, meta boric acid and meta silicic acid.  The material may also contain or organic matter such as sterilized leather or leather powder from which glue, gelatine and fats have been extracted, ground paper, humus, stable manure, green or vegetable matter, hop manure, guano impregnated with gum, wax, sap or resin emulsions, garden soil, yeast, maize oil, indole acetic acid, naphthyl acetic acids, and waxes such as beeswax, carnauba wax, japanese waxes, paraffin wax, ceresin, and crude ozokerite. Specification 448,849 is referred to.
Patent GB-1436473-A (GB)
Title: Method for retarding the setting time of rapid hardening cement
IPC: C04B22/00
Filed: 1974-02-21
Abstract: 1436473 Cement composition ONODA CEMENT CO Ltd 21 Feb 1974 [21 Feb 1973] 7916/74 Heading C1M The setting time of rapid hardening cement is retarded by addition of at least one of boric acid, boric acid anhydride and water-soluble borate (e.g. Na, K or ammonium borates) to cement manufactured by adding CaSO 4  to clinker which is then ground to ground clinker, the clinker containing 11CaO.7Al 2 O 2 .CaX 2  (X = halogen atom) and solid solutions of 3CaO.SiO 2 .- 2CaO.SiO 2  and 4CaO.Al 2 O 3 .Fe 2 O 3  as mineral components. To the separately ground clinker may be added the CaSO 4  and at least one of the sulphates, nitrates and chlorides of K, Na, Mg, Ca, Al and NH 4  (excepting Ca sulphates) or at least one of saccharides, sodium hydrogen carbonate, water soluble phosphates, aliphatic carboxylic acids, fluorosilicates, sodium silicates, lignin sulphonic acid, sulphuric acid esters of higher alcohols and alkyl sulphonates. Alternatively at least one carbonate of Ca, Na, K and Mg may be added to the clinker, possibly with at least one sulphate of Na, K, Al and Mg, the mixture interground and then the anhydrite added. The clinker may be obtained by mixing powders of clay, bauxite, limestone and fluorspar, intergrinding, granulating, and firing at 1300-1350 C. In the examples the use of the boric compound is compared with citric acid, adipic acid or cane sugar.
Patent GB-334922-A (GB)
Title: Improvements in pumps
IPC: F04B43/00
Filed: 1929-03-11
Abstract: 334,922. Pollak, J. E., (Cumming Pump Corporation, Ltd.). March 11, 1929. Diaphragm pumps. - A pump for compressing gases &c. comprises a closed chamber 1 in which a fixed disc 40 having a central inlet valve 20 coacts with a reciprocating disc 4 to form a pump chamber. The edges of one or both discs are flexible, and during the outward movement of the disc 4 the edges are pressed together by the pressure in the chamber 1 so that vacuum is formed between the disc and air &c. is drawn in through the valve 20. During the instroke of the disc 4 the air between the discs is compressed and escapes between the edges of the discs into the chamber 1, from which it is taken off through the valve 11. In another form, the disc 40 is replaced by the curved inner surface of the end wall 10 of the chamber 1.
Patent GB-440922-A (GB)
Title: Improvements in means for removing leakage fluid from engine and like cylinders
IPC: F02F11/00
Filed: 1935-03-14
Abstract: 440,922. Pistons. BUGATTI, J., Molsheim, Bas-Rhin, France. March 14, 1935, No. 7930. Convention date, March 29, 1934. [Class 122 (i)] In an engine or like cylinder fluid leaking past the packing rings is collected in grooves 16, 17 and discharged through ports 8 in the cylinder wall. These ports may be connected with a signalling device for indicating excessive leakage. Lubricant inside the piston passes through holes 19 to grooves 18 in the piston bearing surface. The ports 8 may be so disposed as to be uncovered at the end of the stroke.
Patent GB-1492353-A (GB)
Title: Apparatus and process for determining the susceptibility of microorganisms to antibiotics
IPC: C12Q1/18
Filed: 1976-03-01
Abstract: 1492353 Microbiological testing MCDONNELL DOUGLAS CORP March 1976 8102/76 Heading C6F Antibiotic susceptibility tests may be carried out in a cassette consisting of a plastics plate 10, Figs. 1 and 2, formed with wells 12 and associated overflow cavities 14, 16 (see Fig. 3), a system of filling grooves 24, 26, 28 and a port 30. The wells contain freeze-dried culture medium and include in general a selected antibiotic in a determined concentration. One well will contain the culture medium without antibiotic for control purposes. The culture medium is to be sensitive to the microorganisms in the sense that the optical characteristics of the culture medium change predeterminately only when a micro-organism is sustained in the culture medium. The two main surfaces of the plate are covered with a layer of transparent, air-pervious tape 34. In use, a specimen suspected of containing a micro-organism of interest is diluted in a predetermined quantity of water contained in a reservoir 36, Fig. 4. A needle 38 is inserted through the septum 32 of the mounted cassette to establish communication between the reservoir and the filling passages. A vacuum of 40 mm.Hg is then drawn by connecting a vacuum pump to the upper end of the reservoir. On releasing the vacuum, the diluent mixture flows rapidly through the filling grooves to the wells 12 where it rehydrates and inoculates the culture medium therein. Microbial growth is detected by observing any subsequent change in the optical characteristics of the individual media whereby to ascertain the effect of the antibiotics against the microbe in the specimen.
Patent GB-127867-A (GB)
Title: Improvements in Aero Engines.
IPC: F01P3/14
Filed: 1917-06-08
Abstract: 127,867. Brotherhood, Ltd., P., Bryant, C. W., and Jones, G. F. June 8, 1917. Cylinders, cooling.-Exhaust-valve guides are cooled by water circulated through a chamber formed by tubes c, b which are welded together at their upper edges and screwed at their base into a fitting d carried by the valve seating. Longi. tudinal strips are located in the cooling-chamber to direct the water in the direction of the arrows, the water being finally discharged into the cylinder cooling-jackets. Two or more guides may be connected in series, and the cooling-arrangement may be used in conjunction with the watercooled exhaust pipes described in Specification 126,700.
Patent GB-217346-A (GB)
Title: Improvements in or relating to locking devices for holding magazines and like books
IPC: A47B23/00
Filed: 1923-03-22
Abstract: 217,346. Davies, J. S. March 22, 1923. Leaf holders.-A locking-bar d is hinged at e and can be raised so as to allow the back of a book to be placed in the channel c between two upstanding strips b on the desk a. The bar is then closed on the book and padlocked at the end f which passes through the desk. The distance between the strips may be adjusted by placing packing pieces between them or by forming in the desk rows of holes n with which holes r in the base of the strips are made to coincide. Rods & pass through the holes to keep the strips in place and are engaged by the locking bar. The side members may be formed in one piece with a base provided with pins or screw-holes, or formed as a casting with part of the hinge e. The locking bar d may be formed with teeth to grip the book and in place of being hinged may be locked in position at both ends.
Patent GB-577662-A (GB)
Title: Improvements in resonators for use in wave-guide electrical communication systems
IPC: H03L1/02
Filed: 1944-05-03
Abstract: 577,662. Electric resonators. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and TURNEY, T. H. May 3, 1944, No. 8311. Drawings to Specification. [Class 40 (iii)] A cavity resonator has an adjustable frequency which is independent of temperature or has a desired temperature characteristic, as a result of the difference between the coefficients of expansion of the materials of which it is composed. A cylinder of invar is closed at one end by a temperature-compensating piston of copper which can be shifted axially and clamped in position to give a coarse adjustment of frequency, and at the other end by an invar piston with a micrometer adjustment. The invar is preferably plated with silver or copper. The resonator is coupled to a wave guide through an aperture in one or in each of the pistons or in the side wall.
Patent GB-226086-A (GB)
Title: A device by which water or such like can be heated and which can also be used for cooking purposes
IPC: A47J33/00
Filed: 1924-04-03
Abstract: 226,086. Shetly, J. April 3, 1924. Supports for articles to be heated.-A stand for supporting water or food-containing utensils over a fire in the open air is adjustable in height and width and comprises a top frame B having cross-bars B<1> to which are slidably connected arms C, the latter being formed on the inner ends with retaining rings D and on the downturned outer ends with screwed sockets E adapted to receive the ends of telescopic legs A, F. Detachable utensil-supporting- hooks H are adjustably fastened by thumb-screws J to the frame B and a central hook K is secured at the intersection of the cross-bars B'.
Patent GB-1035895-A (GB)
Title: Improvements in or relating to synthetic textile yarns and their preparation
IPC: D06M23/10
Filed: 1964-02-28
Abstract: In the production of a coherent, zero-twist, multifilament synthetic yarn, a finish mixture e.g. an aqueous solution of polyacrylic acid, comprising at least 60% of a volatile inert liquid e.g. water, low molecular weight alcohol, ester, ether, or ketone, or mixture of water and ethanol, and from 0.25 to 5% by weight of a film-forming polymetric material e.g. ureaformaldehyde resin, polyvinyl alcohol, polyvinyl acetate, polyacrylate or polymethacrylate, is applied to an undrawn, twistless multifilament.  The yarn is immediately drawn to the required orientation before the volatile liquid evaporates, heated to evaporated residual volatile liquid and dry the finish coating, and wound into a package without twisting.