baber/WOPTO huggingface dataset:
Patent GB-850879-A (GB)
Title: Process of producing alkali metal salts of lower alkylene- and hydroxalkylene-diamino or polyamino polyacetic acids
Filed: 1958-08-22
Abstract: Alkali metal salts of alkylene- or hydroxyalkylene-diamino or polyamino polyacetic acids, in which the alkylene group contains up to 6 carbon atoms, are prepared by forming an aqueous solution containing from 50% to 80% by weight of water, and a C1-6 alkylene- or hydroxyalkylene polyamine and an alkali metal hydroxide in the mol. ratio of 1,0:4,1 to 5,1, adding thereto a selected amount of HCN and a lesser amount of formaldehyde, said amounts being in the mol. ratios to said polyamine of 1:4,05 to 5,05 and 1:4,0 to 5,0, respectively, the HCN being present in excess over the formaldehyde by at least 0,05 mol. per mol. of said polyamines, at least 30% of said HCN being initially added, then simultaneously adding formaldehyde and additional HCN at such rates that an excess of cyanide over formaldehyde is maintained, then adding the remaining formaldehyde, supplying to the reacting mixture throughout the operation sufficient heat to obtain active evolution of water vapour, continuing to supply heat for sufficient time to allow the reaction to be substantially completed and to produce a terminal total solids content of from 35 to 60%, and collecting and cooling the resultant solution. Specified amine starting materials are ethylene and propylene diamine, diethylenetriamine and N-aminoethylethanolamine.
Patent GB-408236-A (GB)
Title: Improvements relating to apparatus for indicating the level, and specific gravity ofliquids and the pressure of liquids or gases
IPC: G01F23/62
Filed: 1932-09-29
Abstract: 408,236. Electric signalling systems. ALLEN, A. R., 23, Berwick Avenue, Hayes, Middlesex. Sept. 29, 1932, No. 27044. [Class 40 (i).] In a system in which an armature is moved relative to two coils to vary the relative current flow in the coils and in parallelly connected coils at a receiver, the armature of the receiving coils comprises a rotatable hollow cylinder, the depth of which varies from a minimum to a maximum along its periphery so that the armature is rotated to a position depending on the relative strength of current in the receiving coils. The position of the transmitting coils relative to the signal-initiating element may be varied to enable the apparatus to be used over different ranges of movement and the pointer of the final indicator is moved by a cam carried by the rotatable armature to enable an evenly graduated scale to be used. A visual or audible alarm is operated when a maximum position is reached. The invention is described as applied to an apparatus for indicating the level or the specific gravity of a liquid. As shown in Fig. 1, the position of the float 1 varies in accordance with either the level or the specific gravity of the liquid in 2 and so alters the position of armature 6 relative to coils 8 and 9. The relative strength of current in coils 21, 22 is thus varied and the armature 23 takes up a position depending on the relative strength. The armature 23 comprises a hollow cylindrical member the depth of which varies from a minimum to a maximum as indicated in Fig. 2. Cam 24 is rotated with armature 23 and moves, through 29, the pointer 25 over a scale. The cam 24 is so cut as to enable the scale to be evenly graduated. The pointer carries a bridge - piece 26 which when the pointer reaches its end position, contacts with mercury cups 27 (Fig. 3) to close a visual or audible alarm. The screw 57 enables the coils 8, 9 to be moved relative to the float 1 to alter the range over which the float is operative.
Patent GB-319274-A (GB)
Title: Improvements in or relating to systems of control for alternating current electric motors
IPC: H02P5/74
Filed: 1929-09-05
Abstract: 319,274. Electrical Research Products, Inc., (Assignees of Morton, E. R.). Sept. 19, 1928, [Convention date]. Addition to 320,8S9. Constant-speed control systems. -The arrangement described in the parent Specification wherein a number of A.C. motors 7 - - 10 are automatically controlled to run at the same constant speed by taking current at variable frequency from an A.C. generator 6 driven by a constant-speed motor 18, is provided with resistances 36, 37, 38 connected to the rotors of the machines for the purpose of utilizing slip-energy in the rotor circuits and thus relieving the constantspeed motor 18 of an adjustable proportion of its load. The motors 7, 9 may drive cameras and the motors 8, 10, sound-recording machines. Specifications 275,582 and 297,153 are referred to.
Patent GB-1055370-A (GB)
Title: Tumbler lock pin setting machine
IPC: E05B17/00
Filed: 1965-06-25
Abstract: 1,055,370. Assembling cylinder locks. MAROMATIC CO. Inc. June 25, 1965 [June 26, 1964], No. 27065/65. Heading B3A. [Also in Division E2] Apparatus for assembling the tumbler pins of a cylinder lock has a magazine 33 which feeds pins of pre-cut lengths into pin loading means 32. The apparatus is actuated by inserting a key of the type for which the lock is required into a slot 19 so that a micro-switch is closed whereupon a key sensing device determines the lengths of the tumbler pins required. The magazine automatically loads the pins of the correct lengths into openings 36 in the loading means, the operation being performed by an electromagnetic memory system (Fig. 13, not shown), connected to the key sensing device. When the means 32 is loaded, a light 47 is flashed and the operator presses a button 48. The loading means traverses along a rod 34 and deposits the tumbler pins in a key plug 16. The apparatus may be set for repeat operation by turning a switch 49 and cleared for feeding pins to a different key plug by pressing a button 51.
Patent GB-1466980-A (GB)
Title: Fluid-storage heat-exchangers particularly for heat recovery  from vapour compression refrigeration systems
IPC: F24H4/04
Filed: 1975-05-21
Abstract: 1466980 Heating liquids in bulk; refrigeration A S CROMARTY 21 May 1975 [19 June 1974] 27069/74 Headings F4A F4H and F4S A generally upright fluid-storage vessel 2 (in use enclosed by thermal insulation, not shown) has, in thermal association with the vessel wall, duct means in the form of a non- linear helical passage through which a heating fluid is circulated to heat the fluid (e.g. water) stored in the vessel, the vessel having a length to maximum width ratio of not less than 2 : 1. The duct means may comprise a non-linear helical coil 14, 15 wound around the vessel; or the duct means may be fabricated as an integral part of the vessel wall. The vessel has a fluid inlet 10 and outlets 11, 12 and may also incorporate a thermostatically controlled immersion heater. The heating fluid may comprise refrigerant vapour wherein the duct means encircling the vessel 2 comprises the heat rejecting element (i.e. condenser) of a refrigerating system such as that shown wherein refrigerant from the evaporator 7 is preheated in a heat exchanger 5 (by the condensate of the system) before compression at 1 and delivery to the upper portion 14 of the duct system encircling the vessel 2. The fluid in the upper part of the vessel is thereby heated. Refrigerant condensate passes from the coil portion 15 to the liquid receiver 4 of the system via a further condenser 3 cooled by a fan 8 switched on when the pressure in the system is sufficiently high to actuate means such as a pressure switch 9.
Patent GB-226643-A (GB)
Title: An improved spring holder for curtain rods, and the like
IPC: A47H1/122
Filed: 1923-10-30
Abstract: 226,643. Rose, H. Oct. 30, 1923. Clips, pivoted jaw.-A spring holder for curtain rods comprises a base plate, symmetrical or approximately symmetrical in plan, having flanges A to support a bearing pin G in which is pivoted a top portion. The latter is curved at one end to embrace a curtain rod, and at the other end is shaped to form a trigger piece E which also acts as an abutment for a torsional spring F mounted on the pivot pin.
Patent GB-1221330-A (GB)
Title: Self-extinguishing unsaturated polyesters
Inventor: LAMBERT POL
IPC: C08G63/688
Filed: 1968-06-07
Abstract: 1,221,330. Unsaturated polyesters. UCB (UNION CHIMIQUE-CHEMISCHE BEDRIJVEN) S.A. 6 June, 1969 [7 June, 1968], No. 27140/68. Headings C3P and C3R. Copolymerizable unsaturated self-extinguishing polyesters may be prepared by condensing unsaturated polycarboxylic acids with polyhydroxy halogenated thio compounds of the general formula where R is an aliphatic hydrocarbon radical containing at least one hydroxyl group, X is hydrogen or halogen, at least one X being halogen. The halogen atoms are preferably chlorine or bromine. The unsaturated polycarboxylic acid may be maleic, fumaric, itaconic or aconitic acid. The reaction mixture may include saturated polycarboxylic acids such as succinic, adipic, sebacic, phthalic, isophthalic terephthalic and tetrachlorophthalic acids, and the Diels-Alder product of maleic anhydride with hexachlorocyclopentadiene, or ester-forming derivatives thereof, and saturated or unsaturated monocarboxylic acids such as acetic, acrylic, methacrylic and benzoic acids. The thio compound may be partially replaced by other polyhydroxy compounds such as ethylene glycols, propylene glycols, glycerol, trimethylolpropane and pentaerythritol, or by a monohydroxy alcohol such as methanol, ethanol, propanol, 2-ethylhexanol or nonanol. The unsaturated polyesters may be dissolved in vinylic compounds, such as styrene, acrylic esters, methacrylic esters or vinyl esters to produce a resin which may be copolymerized in the presence of free radical catalysts initiated by an organo-metallic compound. Before copolymerization the resin may be mixed with conventional additives (e.g. antimony trioxide). Uses.-Shaped articles such as laminates, coated, painted or varnished articles.
Patent GB-229230-A (GB)
Title: Pneumatic lint-cleaners for warping machines, looms and other machines
IPC: D02H5/02
Filed: 1924-11-13
Abstract: 229,230. Entwistle Co., T. C., (Assignees of Cummings, M. F., and Lapham, N. G.). March 1, 1924, [Convention date]. Mounting.-A fan blower for expelling lint &c. from looms &c. as described in Specifications 207,443 and 211,006, is moved transversely by a travelling belt or cable and is oscillated to cause the air blast to sweep along the threads by a shaft 26 driven from the main fan shaft and carrying a disc 27 on which a link 29 is pivoted at one end, the other end being fixed to the yoke 14.
Patent GB-819041-A (GB)
Title: Method of producing continuous-tone or half-tone copies which are corrected for toneand colour values
IPC: G03C7/18
Filed: 1956-09-05
Abstract: 819,041. Photographic tone and colour correcting masks. AGFA A.G. Sept. 5, 1956 [Oct. 20, 1955], No. 27198/56. Drawings to Specification. Class 98(2) A monochrome image is printed through a black and white tone-correcting, or a black and white colour-correcting, mask, with printing light at least partialy absorbed by the monochrome image as well as absorbed by the mask on to a photographic layer sensitive to such light. The effect of the mask relative to the monochrome image can so be varied as desired by choice of the colour of the printing light to produce a corrected print. Thus a continuous tone original may be exposed to a silver halide emplsion layer and the latter colour developed to a yellow-orange image, the same original exposed to record only the highlights on to a further silver halide emulsion layer and the latter black and white developed to form a mask, and then with monochrome and mask in combination, red light would pass unchanged through the monochrome and blue light would be strongly modulated thereby, but green light would produce a medium gradation therefrom. Following this procedure monochrome and mask may be produced on different supports or on the same support, and simultaneous or successive exposures with lights of different colour may be effected, and copying, enlargement 'or screening included in the procedure. In an example a black and white continuous tone image is printed on to a silver halide emulsion layer and the latter is processed to form a negative red monochrome image, and is exposed also on to an emulsion layer having a steep graduation so that only the high lights of the original are reproduced and processing is effected to produce a negative tone correcting mask. Monochrome and mask are then registered together and the relative effects of printing therethrough using a green and a red filter are described.
Patent GB-162699-A (GB)
Title: New or improved apparatus for cooking, washing, rendering and separating animal and other substances
IPC: C11B1/12
Filed: 1919-11-06
Abstract: 162,699. Isherwood, J. Nov. 6, 1919. Fats, extracting.-An apparatus for rendering and separating animal and other substances comprises a revoluble perforated container B for the substances, a stationary external drum A provided with water supply and air vent pipes a<3>, a<5> and steam pipes a<7>, a<9>, a vacuum pump E, a refuse receiver D, separator compartments c<2>, c<3>, c<4>, c<5> and means for withdrawing the container B from the drum A for charging or discharging. The container B, which is provided with internal beaters b and a perforated lid b<1> having internal bristles b<2>, is supported at one end by rollers b<9>, secured to the end plate a of the drum A, and at the other end by pegs b<3> which are revolved by a pulley b<6>. The central shaft is provided with a handwheel a<14> and reversing and loose pulleys a<15> at its extremities, and a screw a<13> engaging with a plate a which is, together with the container B, withdrawn from the drum A or replaced according to the direction of rotation of the central shaft, guide rods a<16> being provided to prevent the plate a from rotating. The outlet pipes a", a<12> communicate with the separator, the pipe a<11> leading to the receiver D which is provided with a perforated diaphragm d and a discharge cock d<1> for solid matter. The vacuum pump E discharges into the compartment c<2> and, by exhausting the drum A, maintains an upward flow in the circulating pipe a<10>, The separator, which has a sloping floor along which the water flows to the compartment c<5>, is divided by partitions c<1>, and a siphon c<6>, the action of which can be adjusted by cocks c<7>, c<8>, removes the water, leaving the fat in the upper parts of the compartments from whence it can be removed. Soda is placed in the separator during operation, and the drum A is provided with a pressure gauge a<1> and a safety valve a<2>.
Patent GB-273946-A (GB)
Title: Tobacco cartridge for pipes
IPC: A24D1/14
Filed: 1926-11-01
Abstract: 273,946. Blank, E. Nov. 1, 1926. Tobacco cartridges.-A charge is wrapped in paper and is tied with wire d around the mouth or lower end. The wire may also envelope the cartridge, and the ends k may be passed up through the body thereof.
Patent GB-509481-A (GB)
Title: Improvements in or relating to lubricating systems for internal combustion engines
IPC: F01M5/02
Filed: 1937-10-08
Abstract: 509,481. Heating and cooling lubricant for internal-combustion engines. BRANDENBURGISCHE MOTORENWERKE GES. Oct. 8, 1937, No. 27392. Void. Convention date, Oct. 8, 1936. [Class 12 (iii)] A heat-exchanger 8 which can be subjected either to the hot gases from the engine 2, or to cold air, is inserted in the lubricant system of an internal-combustion engine 2. As shown, an oil pump 3 draws lubricant from a reservoir 1 through pipes 12, 13, heat-exchanger 8, pipes 14, 15, and delivers it to the engine 2. A scavenging pump 4 returns the oil from the engine through a cooler 10 to the oil reservoir 1. An additional cooler 38 may be used and then if the parts are arranged as shown, the heatexchanger acts as a flame destroyer for the exhaust gases. The cooler 10 and exchanger 8 have bye-passes 19, 18. The throttles 7, 6, 11, and the valves controlling the direction of flow of the oil in the system may be operated automatically by a temperature sensitive apparatus. In a modification the pipe 17 is connected directly to the pipe 13, and in another modification the pump 3 is positioned between the reservoir 1 and the exchanger 8.
Patent GB-378688-A (GB)
Title: Improvements in pneumatic tyres and wheel rims for use therewith
IPC: B60B25/04
Filed: 1931-10-02
Abstract: 378,688. Pneumatic tyres. MICHELIN ET CIE, Clermont-Ferrand, Puy de Dome, Fiance. Oct. 2, 1931, No. 27445. Convention date, Oct. 2, 1930. [Class 144 (ii).] In a well-base rim for use with wiredon pneumatic tyres and provided with a detachable flange, the diameter of the seating for the bead adjacent the flange is less than that for the other bead, the beads having corresponding diameters. In Fig. 2, the beads 2, 3 are provided with extensions 1 and the diameter of the seating for the bead 2, comprising a ledge 6 on the flange C and a rib 9, is less than that of the. seating 5.
Patent GB-856866-A (GB)
Title: Improvements in or relating to smoke indicators
Inventor: HURLEY THOMAS FREDERICK
IPC: G01N21/29
Filed: 1956-09-07
Abstract: 856,866. Smoke detecting apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Sept. 5, 1957 [Sept. 7, 1956]. No. 27493/56. Class 97(3) A visual smoke density indicator comprises a source of light viewed through at least a part of a flue or duct along which smoke is passing, the source being an element which is in direct contact with the smoke and which is heated to a temperature at which it emits rays in the visible spectrum. As shown a source 14 in the form of three electrically heated wires liberally wound round formers arranged as an equilateral triangle, is mounted on a baseplate 15 carrying runners 21 slidable along the floor of a flue 22 having a window 25 through which the source is viewed. The density of the smoke is estimated by moving the source or adjusting its intensity. The source may be a flame fed by gas or oil vapour or a mantle heated by such flame.
Patent GB-269681-A (GB)
Title: Improvements in or relating to excavating channels for telephone and the like cables
IPC: H02G1/06
Filed: 1925-11-02
Abstract: 269,681. Kirby, J. A. Nov. 2, 1925. Couplings for tracters.-The means for coupling a carriage fitted with channelexcavating and cablelaying apparatus, to a tractor consists of a V-shaped bar 23, Fig. 3, connected to the fore part of the carriage by straps 25 and adjustably secured to a plate 28 which is connected to the end 13A of the beam carrying the excavating plough by two shackles 26 and an intermediate link 27.
Patent GB-449522-A (GB)
Title: Improvements in and relating to methods of producing varnish coatings
IPC: C09D161/20
Filed: 1934-09-25
Abstract: Superficial coatings on porous materials such as felts, fabrics and papers are prepared by polymerizing a varnish derived from an amine-aldehyde resin so that the viscosity is increased.
Patent GB-813587-A (GB)
Title: Improvements relating to articles of tableware, primarily for use by children
Inventor: KENT HENRY SIMON
IPC: A47G19/22
Filed: 1956-09-09
Abstract: 813,587. Tableware articles. SHORTER & SON Ltd., and LOEWENSTEIN & HECHT Ltd. Sept. 9, 1957 [Sept. 8, 1956], No. 27538/56. Class 66. [Also in Group XIV] An article of ceramic tableware comprises a whistle made of the same material as the article itself and forming a permanent part of the construction. In the embodiment shown, a mug 10 has a handle 11 to which a bird figure 12 is fixed, the body of the bird forming a whistle. The bird's tail 13 forms a mouthpiece having inlet passage 14 leading to a restriction 15 beyond which is a passage 16 and outlet 17, the passage 16 leading to a cavity 18. The bird may be mounted on the rim of the mug, and the decoration on the mug and the form of whistle may be inter-related. The invention may be applied to cups, beakers, or plates. The whistle may be in any animal or human form or in the form of a musical instrument.
Patent GB-161217-A (GB)
Title: Curtain cord grip and knot cover
IPC: A47H11/04
Filed: 1919-11-07
Abstract: 161,217. Brotherton, A. E., and Horne, G. Nov. 7, 1919. End-handles.-A curtain-rod handle consists of a piece of wood or other material about 3 in. long by 1 in. diameter, fitted at each end with a screw eye to which the cord is knotted and with a threaded knot-concealing cap, apertured for the cord to pass through. A rubber protective band is fixed round the centre of the handle.
Patent GB-465594-A (GB)
Title: Improvements in electric resistance alloys
IPC: C22C38/40
Filed: 1935-10-05
Abstract: An electric resistance alloy comprises 30-40 per cent of nickel, 10-20 per cent of chromium, 0,001-0,2 per cent of calcium and the remainder iron.  The alloy may also comprise 0,01-0,5 per cent of zirconium with or without 0,01-1,0 per cent of aluminium, and 0,1-2,0 per cent of manganese or silicon or both may be present.  The nickel may contain up to 2 per cent of cobalt.  According to the Provisional Specification, the alloy comprises 20-50 per cent of nickel and 5-25 per cent of chromium and may contain zirconium with or without aluminium, calcium being absent.
Patent GB-270567-A (GB)
Title: Improvements in and relating to gratings, particularly applicable for flooring, roofing, and like purposes
IPC: E04C2/42
Filed: 1926-11-03
Abstract: 270,567. Law, J. A., (Irving Iron Works Co.). Nov. 3, 1926. Gratings.-Metal gratings, Fig. 1, to be assembled for openwork flooring or reinforced concrete floors and roofs, are made as units with the parallel bars 1, 3, 5 and zigzag bars 2, 4, 6 displaced alternately in each series so that the contiguous ends intermesh on assembly. For extension transversely, side units, displaced longitudinally, are bolted to the others. The bars are connected either by overlapping and bolting them together as shown in Fig. 2, or they may abut with bolted fishplates over the joints. The ends 15 of the bars may be slightly offset. For greater strength, one or both straight bars 9, 9<a> may be extended to the next bolted joint as shown in Fig. 8.
Patent GB-955138-A (GB)
Title: Improvements in or relating to the production of beryllium
Inventor: CROOK ROBERT DEREK
IPC: C22B35/00
Filed: 1959-08-12
Abstract: In the production of metallic beryllium by electrolysing a beryllium chloride-sodium chloride melt, beryllium values are added to the melt in the form of beryllium chloride which is produced by chlorination of beryllia/carbon pellets which have been formed by reducing <PICT:0955138/C1/1> beryllium hydroxide with hot air as a fluidized bed and subsequently mixing the resulting beryllium oxide with powdered carbon and pressing to form pellets.  As shown in Fig. 1, dried beryllium hydroxide is calcined at 500 DEG  C. in a fluidized bed 1 with hot air.  The resulting beryllium oxide is mixed with carbon and pelleted at 4, the pellets passing to a chlorinator 5 preferably operating at 800 DEG  C., from which the beryllium chloride vapour is fed to a beryllium chloride/sodium chloride circulating melt which passes through an electrolysis cell 9 and is returned to the vessel 6. Specification 900,698 is referred to.ALSO:<PICT:0955138/C3/1> In the production of metallic beryllium by electrolysing a beryllium chloride-sodium chloride melt, beryllium values are added to the melt in the form of beryllium chloride which is produced by chlorination of a beryllia/carbon pellets which have been formed by reducing beryllium hydroxide with hot air as a fluidized bed and subsequently mixing the resulting beryllium oxide with powdered carbon and pressing to form pellets. As shown in Fig. 1, dried beryllium hydroxide is calcined at 500 DEG C. in a fluidized bed 1 with hot air. The resulting beryllium oxide is mixed with carbon and pelleted at 4, the pellets passing to a chlorinator 5 from which the beryllium chloride vapour is fed to a beryllium chloride/sodium chloride circulating melt which passes through an electrolysis cell 9 and is returned to the vessel 6. Specification 900,698 is referred to.