baber/WOPTO huggingface dataset:
Patent GB-788164-A (GB)
Title: Improvements in or relating to attachments for typewriters
IPC: B41J3/24
Filed: 1954-10-27
Abstract: 788,164. Ink-ribbon mechanism. ENGLAND, H. M. Dec. 12, 1955 [Oct. 27, 1954; June 3, 1955], Nos. 30964/54 and 15939/55. Class 100(4). A typewriter or typewriter attachment feeds a ribbon 15 during letter-spacing carriage movement and holds the ribbon stationary during carriage return movement, the feeding means including synchronized drives 16, 17 and 32, 33 acting on the ribbon at each end of its run to avoid tensional stress in the ribbon. As shown, the drives comprise serrated driving rolls 16, 32 and spring-biased pressure rolls 17, 33 the rolls 16, 32 being driven through a unidirectional ratched mechanism by a belt 24 attached to either end of the carriage. An adjustable spring detent 34 prevents reverse rotation of the drives during a carriage return movement. In embodiments, not shown, the drive rolls, may be driven by sprocket pulleys rotated by a perforated plastic belt or by a pinion rotated by racks attached to the carriage.
Patent GB-493984-A (GB)
Title: Improvements in explosive charges
IPC: F42D1/02
Filed: 1937-11-11
Abstract: 493,984. Blasting-cartridges; explosives. KESSEN, W., and WESTFALISCHANHALTISCHE SPRENGSTOFF - AKT. - GES. Nov. 11, 1937, No. 30973. Drawings to Specification. [Classes 9 (i) and 9 (ii)] An explosive charge, more particularly for use in blasting, comprises a normal explosive charge and an additional charge including nitroglycerine and/or nitroglycol and an alkaline bicarbonate exceeding in quantity (by weight) the amount of the nitroglycerine and /or nitroglycol and tending to produce inert gases and to absorb heat. According to one method of carrying the invention into effect, one or more cartridges containing the normal explosive charge are first introduced into the bore-hole and then one or more cartridges containing the additional charge are inserted as a closure member. The igniter may be arranged either at the innermost point of the bore-hole or in the closure cartridge. If desired, cartridges containing the additional charge may be inserted between normal cartridges. Instead of using separate cartridges for the additional and normal charges, these may be arranged within a common cover or jacket, the end of the packing containing the additional charge being marked, e.g. by colouring. According to further modifications, an additional charge may be arranged at both ends of a normal charge or the additional charge may constitute a jacket or cover for a core of the normal charge. Two examples are given of a normal charge, one of which consists of gelatinized nitroglycerine 65 per cent, sodium nitrate 26À8 per cent, wood dust 8 per cent and colcothar 0À2 per cent whilst the other consists of gelatinized nitroglycerine 28À5 per cent, ammonium nitrate 30À5 per cent, gelatinized carrageen moss 0À7 per cent, wood dust 0À3 per cent, talcum 0À5 per cent and sodium chloride 39À5 per cent. The additional charge may consist of nitroglycerine 10 per cent, wood fibre 2 per cent, sodium nitrate 6 per cent, sodium chloride 32 per cent and sodium bicarbonate 50 per cent.
Patent GB-524012-A (GB)
Title: A machine suitable for testing and calibrating pressure gauges
IPC: G01L27/00
Filed: 1938-10-26
Abstract: 524,012. Testing pressure gauges. BARNET INSTRUMENTS, Ltd., and GRANT, C. R. A. Oct. 26, 1938, No. 30989. [Class 106 (ii)] A casing housing a long lever is provided with an opening into which a detachable pressure chamber unit may be fitted housing a diaphragm and plunger so that the stem of the latter acts on the lever which is connected to a steelyard on top of. the casing. A pressure chamber 44 is constituted by a recess in the face of the upper of two members 45, 46 clamped together with a rubber or like diaphragm 47 therebetween. The lower member 46 also has a recess 48 in which is accommodated the head 49 of a plunger 50 and a washer 51 within the central aperture of which the head 49 fits. The plunger stem 50 is extended downwards so that when the device is fitted at 34, the plunger acts on the means 33 to transmit pressure to a steelyard 31 pivoted at 32. Near the end of the long arm of the steelyard the arm is connected to the short arm of a second steelyard 36 pivoted at 37 and provided with large and small ingots 42, 43 slidable independently. Weights 39 are connected with the beam 31 at 40 and an adjustable balance weight 41 is provided. Different ranges of pressure for the given weights on the beam 36 may be afforded by unclamping the members 45, 46 and substituting for plunger 49 and washer 50 items of different effective diameter. The fluid the pressure of which is to be measured is admitted at 52. In a modification, a differential plunger is used, and the space between the two diameters may be connected to a source of pressure below atmospheric. By connecting the space above the larger diameter to pressure fluid, pressures above atmospheric are measured. A number of pressure chamber units having plungers of different dimensions may be permanently attached to a source of liquid under pressure as by mounting on a turret which may be rotated to bring any unit into position for use.
Patent GB-844729-A (GB)
Title: Improvements in or relating to electron discharge tubes
IPC: H01J23/26
Filed: 1958-09-29
Abstract: 844,729. Travelling wave tubes. TELEFUNKEN G.m.b.H. Sept. 29, 1958 [Oct. 8, 1957], No. 31022/58. Class 39(1). The helix 1 of a travelling wave tube is secured to insulating support rods 2 by a coating of stoved glaze, the glaze covering the entire surface of the rods and helix. As shown three ceramic rods 2 with strips or layers 4 of carbon or other lossy material and carrying the helix 1 is sprayed or dipped in glazing liquid and placed in a dryer, after which the glaze coating is stoved to form glaze bonds 3. While the tube envelope is being pumped out the layer of glaze covers the helix and lossy material 4 and prevents it from releasing occluded gases. When the stoved coating of glaze is only partly dried it may be coated with one or more additional layers of glaze. Different areas may be given different numbers of coatings of glaze. Glazing liquids of different viscosities may be used to control the thickness of the glaze layer either locally or over the whole assembly. A variation in thickness over the length of the glaze may match the electron beam velocity and wave velocity, e.g. by increasing the thickness of the glaze towards the collector end of the tube. In a modification the helix and support rods are assembled and temporarily stuck together by coating them at the areas of contact with partially dried crude glazing liquor ; the assembly is then further coated with an overall layer of glaze and stoved.
Patent GB-755808-A (GB)
Title: Improvements relating to spring suspensions, more particularly for vehicles
IPC: F16F13/00
Filed: 1954-10-27
Abstract: 755,808. Rubber-metal springs; dash-pots. SOC. APPLICAZIONI GOMMA ANTIVIBRANTI S.A.G.A. SOC. PER AZIONI. Oct. 27, 1954 [Feb. 10, 1954], No. 31047/54. Class 108 (3). The invention relates to a spring suspension for vehicles of the type in which oscillations of the spring are damped by the throttled flow of liquid between main and auxiliary containers. According to the invention, the suspension comprises a hollow resilient body 6 forming both the spring and the main container, the auxiliary container 12 being constituted by a flexible walled chamber, both main and auxiliary containers being entirely filled with the liquid, the auxiliary container taking no part in the loadsupporting action of the system. Non-return valves, which open in the direction of the arrows, are provided at 13, 14. In Fig. 2, the auxiliary container is formed by the interior of a bellows 12 which expands when the main container 11 contracts on compression of the spring 6. In Fig. 4, the auxiliary container is defined by a rigid chamber 17 and a collapsible chamber 16. A metallic spring 7 embedded in the rubber spring 6, may alternatively be separate from the spring 6. The auxiliary chamber may be disposed externally of the main chamber.
Patent GB-728170-A (GB)
Title: Improvements in and relating to dummy load arrangements for radio frequency power measurements and the like
Inventor: HERSH WOLF
IPC: H01P1/26
Filed: 1952-12-08
Abstract: 728,170. Power measurement; liquid cooled ohmic resistors; cooling cables. MULLARD RADIO VALVE CO., Ltd. Dec. 8, 1952, No. 31064/52. Classes 36 and 37. [Also in Group XL (b)] A dummy load for radio frequency power measurements over a wide frequency range comprises two coaxially arranged conductors, one of which is principally resistive, and inlet and outlet means for the passage of a low loss dielectric fluid between the conductors, in which load the dissipated power is absorbed by the resistive conductor and is calculable from the rate of fluid flow and its input and output temperatures, Fig. 1 shows a coaxial dummy load to which an R.F. input is coupled from a coaxial line through a conical flanged adapter 21 bolted to the outer conductor 26 and having an internal polyethylene end insulator 20 and an inner conductor 15, which is connected to the central conductor 25 of the dummy load, formed as a series of cylindrical glass rods having a thin resistive coating of a noble metal (e.g. gold). The rods are supported centrally within the tubular outer conductor 26 by a ported polyethylene insulator section 34 at the input end, by intermediate polyethylene spiders 32, and at the terminating end by a perforated metallicallycoated glass disc 36 whose impedance is equal to the characteristic impedance of the line, clamped between the flanges of an outlet union 30 and the outer conductor 26. A spring-loaded sliding joint at the centre of the terminating disc allows for expansion and manufacturing tolerances, and the individual rod sections are graded in resistance according to a predetermined law by varying their coating thicknesses, so that power absorption is uniform along the line. A liquid coolant (e.g. carbon tetrachloride whose dielectric properties are similar to those of polyethylene in having a loss angle which is invariable over a wide frequency range) is circulated through the interior of the externally lagged outer conductor 26 from the inlet union 27 to the outlet union 30 from a liquid circuit comprising a pump flowmeter, and cooling tank (Fig. 5, not shown); thermometers 28, 31 being provided in the inlet and outlet unions whereby the power dissipation is calculable from the temperature difference and the rate of flow. The resistive surface may be applied to the inner surface of an outer dielectric tube surrounding the coolant, or to the outer surface of such a tube which may then be surrounded by an external coolant jacket. Alternatively the dummy load may take the form of a wave-guide section having a resistive coating on the inside of a dielectric duct through which the coolant flows. A liquid-cooled high-power transmission line may employ a similar combination of liquid and solid dielectrics for coolant and for end closure.
Patent GB-709270-A (GB)
Title: Improvements in or relating to inflatable toys and like devices
IPC: A63H27/10
Filed: 1950-12-21
Abstract: 709,270. Inflatable toys. PIONEER RUBBER CO. Ltd., and AUGER. C. W. Dec. 21, 1951 [Dec. 21. 1950]. No. 31108/50. Class 132(3) - An inflatable toy comprises a balloon part and ancillary parts, e.g. legs, feet or other limbs. A balloon 16 representing the body of a chicken is secured by its nozzle 17 to a strut 12 of a supporting member formed as a one-piece cut-out, e.g. of cardboard, Fig. 1. The nozzle is wedged into a slit 14 after passing through a hole 13 and the cut-out is scored at 11 to facilitate bending. The limbs and the strut may have interlocking parts.
Patent GB-1319738-A (GB)
Title: Conveyor for bulk material
IPC: B65G37/00
Filed: 1971-07-02
Abstract: 1319738 Endless conveyers MOLEDETH DEVELOPMENT CO Ltd 2 July 1971 [5 Aug 1970] 31191/71 Heading B8A In an endless conveyer comprising two endless belts 1, 2 between which material may be conveyed, the belts are urged towards each other by fluid pressure. In the embodiment shown the belts 1, 2 are arranged to move in and close the open side of respective channel shaped members 12, 11 to which pressurized air is supplied through pipes 17, 16. Seals 13 are provided at the edge of the channels to bear on the belts. In an alternative embodiment, Fig. 7 (not shown), the belts (1) (2) pass through a single box (22) supplied with pressurized air and rollers (23-28) co-operates with the idler pulleys (3), (4) over which the belts pass to effect a seal of the ends of the box. The idler pulleys may have a recess in the surface, Fig. 4 (not shown), to accommodate the belts passing thereover or the pulleys Fig. 6 (not shown) may have rubber insert (21) to accommodate the belts.
Patent GB-935283-A (GB)
Title: An improved electrical fluid-pressure-actuable switch
IPC: H01H35/32
Filed: 1959-09-15
Abstract: 935,283. Fluid actuation of switches. MEZ POSTRELMOV NARODNI PCDNIK. Sept. 15, 1959 [Sept. 15, 1958], No. 31339/59. Class 38 (5). A fluid-pressure actuated switch has a bellows 1 acting on a lever 3 restrained by a tension spring 5 for actuation of the left-hand microswitch 11 and a further spring 10 with a lostmotion coupling to the lever to control the actuating pressure of micro-switch 11 on the right.
Patent GB-808654-A (GB)
Title: Improvements relating to coke ovens
Inventor: FOSTER JOSEPH PARKIN SNAITH
IPC: C10B21/14
Filed: 1954-11-01
Abstract: 808,654. Reversing valves for coke oven regenerators. SIMON-CARVES Ltd, Oct. 25, 1955 [Nov. 1, 1954], No. 31468/54. Class 64(1) [Also in Group XXIX] In a gas-heated coke oven battery, valves arranged on both sides of the battery in rows 4, 5 to control either the air supply to the sole flues or the exhaust of waste gases to the chimney flues and cocks arran-  ged in upper and lower rows 2, 3 to control the gas supply to the battery are sequentially operated by an electrohydraulic control system such that only one row of gas cocks is open at any one time. On closing a main switch, a master clock momentarily operates an electric relay at predetermined intervals so that contacts are made to operate a series of further relays in correct sequence to ring a warning bell, operate an electric motor 27 to drive a pump 28, and energize solenoids to operate a control valve 6 to direct pressure liquid through one or other of pipes 8, 12 to the system. Assuming the row 3 gas cocks open and the row 2, cocks closed, admittance of pressure liquid to the pipe 8 causes a piston 30 to retract into its cylinder to close the cocks 3 and on reaching the end of its stroke pressure to build up to open a valve 13 so that a piston 37 in a cylinder 17 is retracted to reverse alternate valves in the rows 4 and 5. On movement of the piston 37 a striker 18 opens a valve 16 whence pressure liquid is also directed to retract a piston 40 in its cylinder 19 to open the row 2 gas cocks. The closure of the row 3 gas cocks through a cable 32 moves a piston 9 out of its cylinder 33 ready for subsequent actuation, closes a switch F, 34 to momentarily stop the pump and opens a switch 25, 26. The reversal of the alternate valves in rows 4 and 5 through a cable 38 moves a piston out of its cylinder 24 ready for subsequent actuation and a striker 46 to allow a valve 45 similar to the valve 16 to close. The opening of the row 2 gas cocks through a cable 42 moves a piston out of its cylinder 21, to close a switch E, 47 to again momentarily stop the pump and close a switch 22, 23. The opening of the switch 25, 26 and the closing of the switch 22, 23 effects the operation of the solenoids so that the valve 6 directs liquid into the line 12 and exhausts it from the line 8 to carry out the sequence of operations in the reverse manner.
Patent GB-475990-A (GB)
Title: Improvements in cords, strands and similar products
IPC: D04D1/00
Filed: 1936-11-17
Abstract: 475,990. Covering cores by winding and wrapping. KATZ, M. Nov. 17, 1936, No. 31507. Convention date, Dec. 21, 1935. [Class 109] [Also in Group IX] A yarn or cord, comprising one or more strips of cellulosic material wound or wrapped around a saturated core of cotton &c., is made by drawing the core 11 from a spool 10 through a tank 12, containing, e.g. glycerine, then through a wiper 15 to a folding device 18 which folds the covering strip 17, drawn from a spool 16, in channel form around the core. The strip is curled around the core so as completely to envelope it by binding strands 19, 19a and the completed yarn or cord then passes around rollers 20 to the take-up spool 21 which is movable along its shaft to cause the laying of the yarn on the spool.
Patent GB-860552-A (GB)
Title: Improved apparatus for packing material in containers
Inventor: DOUGLAS EDWIN J
IPC: B65B1/32
Filed: 1958-10-03
Abstract: 860,552. Weighing apparatus. STOKER CO., H. L. Oct. 3, 1958, No. 31639/58. Class 143 [Also in Group XVII] An apparatus for packing material in a container has a weighing mechanism for weighing the container as it is being filled, and a platform on the weighing mechanism adapted to reciprocate vertically beneath and shake the bottom of the container, the platform being balanced to minimize the transmission of vibrations to the weighing mechanism. As shown, the shaker comprises two pad members 26 and 28, Fig. 3, displaced vertically in opposite directions by connecting rods 34, 36, on a crank shaft 32 carrying balance weights 38 and 40. The crank shaft 32, which is driven by an electric motor 30, is held by two straps 50 rigid with a mounting plate 46. The pad members 26, 28 are secured to the flexible members 42, 43 extending from the plate 46. A bag packer 10, Fig. 1, has a hopper 14 for receiving material which is to be supplied through a spout 16 to a bag 12. A clamp 18, operated by a lever 20, secures the bag to the spout such that the bag bottom rests on the shaker 24. The plate 46 of the shaker 24 is secured to a weighing mechanism 22 of the bag packer 10. The stroke and speed of movement of the pads 26, 28, is proportioned such that the hammering action of the pads on the lower end of the bag cause the lower end of the bag to be suspended in air and maintained at a generally fixed location such that the bag does not follow the full up and down movement of the pads. The bag packer may stop automatically when the weight in the bag is sufficient and the filled bag is then removed by rolling it forwardly off the pads 26, 28.
Patent GB-1219245-A (GB)
Title: Improvements in or relating to a process for preparing cocoa butter substitutes
Inventor: ERRBOE JORGEN THEISS
IPC: A23G1/00
Filed: 1969-06-23
Abstract: 1,219,245. Cocoa-butter substitute. AARHUS OLIEFABRIK A/S. 23 June, 1969, No. 31666/69. Heading C5C. A cocoa-butter substitute having an iodine value of 67-73 and a slip point of 33-37‹ C. is prepared by hydrogenating for 4-8 hours a vegetable oil at an elevated temperature in the presence of a partially spent Ni catalyst containing 1-4% Ni by wt. of the oil until the product has an IV of 50-80, and fractionally crystallizing the product with an organic solvent and recovering the desired product as an intermediate melting fraction. The vegetable oil may be a triglyceride with less than 25% of the fatty acid residues being saturated, e.g. cottonseed oil or soybean oil. The oil may be hydrogenated at 170-190‹ C. The hydrogenated oil may be crystallized from a solution in hexane (or acetone) at 4‹ to 10‹ C., the higher melting triglycerides removed and the lower melting triglycerides further crystallized from a solution in hexane at - 8‹ to -12‹ C. and the desired fraction separated.
Patent GB-1402602-A (GB)
Title: Crane having a safety device
IPC: B66C23/90
Filed: 1972-07-06
Abstract: 1402602 Crane safety devices TADANO IRONWORKS CO Ltd 6 July 1972 [6 July 1971 13 Sept 1971] 31800/72 Heading B8B A crane having a boom 24 luffed by an hydraulic cylinder 20 has stress-detecting means including at least one strain gauge mounted on the cylinder 20 to detect axial stress in the cylinder 20 and give an electrical output signal corresponding thereto. This signal is compared with a safety-limit signal to ascertain the safety state of the crane. Fig. 5 shows a device 36a comprising four pairs of strain gauges 37, 38 respectively arranged to measure longitudinal stress and stress perpendicular thereto of a piston-rod 32, the gauges 38 being used to apply temperature correction, and correction due to Poisson's ratio, to the gauges 37. Fig. 11 shows the device 36a incorporated in a circuit wherein the gauges 37, 38 are connected in opposite arms of a bridge. The amplified signal Vs from the bridge is fed to an indicating device 57 which also receives a signal Vq corresponding to the safety-limit stress for the particular extension of the jib 24 from one of three potentiometers 52, 53, 54 connected to the luffing axis shaft 25. The device 57 calculates the ratio of Vo to Vq and indicates this. An alarm device 68 gives an alarm signal when a predetermined limit to the ratio is exceeded and may prevent further operation of the crane to increase such ratio. Indicators 63, 65 may respectively show the extension and elevation of the jib 24.
Patent GB-767239-A (GB)
Title: Improvements in or relating to means for home rug making
IPC: D04G3/00
Filed: 1954-11-04
Abstract: 767,239. Rug making devices. BLAKE, G. A. Oct. 21, 1955 [Nov. 4, 1954], No. 31915/54. Class 142 (4). A device for supporting the backing of a rug during rug-making comprises a base 1 with depending members 4,5 which grip the operator's thighs or the arms of a chair and a laterally movable bar 3 provided with pegs 14 which hold the backing. Rubber tabs 16 retain the backing on the pegs. The members 4,5 and the underside of the base have rubber pads 17 glued thereto. The bar 3 slides in a dovetail groove in the base and has pins 11,12 which engage a central pin 13 in the base thereby limiting the lateral movement of the bar. One of the members 4,5 is adjustable.
Patent GB-1160343-A (GB)
Title: Process for Dyeing Synthetic Polyamide Fibers
IPC: D06P1/613
Filed: 1967-07-11
Abstract: 1,160,343. Dyeing synthetic polyamides. CIBA Ltd. 11 July, 1967 [12 July, 1966], No. 31938/67. Heading D1B. Fibrous materials of synthetic polyamides e.g. nylon 6 or 6, 6 are dyed' with watersoluble 1:2 metal dye complex dyestuffs free from free acid groups imparting solubility in water by contacting the material at elevated temperature with an acidic dye preparation of pH 1 to 5 containing a) at least one nonionic reaction product or quaternary ammonium salt thereof formed from ethylene oxide and a C 12 C 22  aliphatic amine or mixture thereof in an amount of 5 to 30 moles ethylene oxide per mol amine or amine mixture, and b) at least one non-ionic reaction product formed from ethylene oxide and an aliphatic carboxylic acid containing at least 14 carbon atoms, or an aliphatic, cycloaliphatic or aryl-substituted aliphatic monohydroxy or polyhydroxy compound containing at least 14 carbon atoms, in an amount of 4 to 70 moles of ethylene oxide per mole of carboxylic acid or hydroxy compound, and wherein the ratio a:b is 1:0.2 to 1:1.5 and the ratio (a+b):dyestuff is 1:1.4 to 1:0.3. The dyeing is preferably carried out by the exhaustion method using chromium and cobalt complex dyestuffs in presence of phosphoric acid. Amines used in (a) include hexadecylamine, octadecylamine and octadecenylamine and the carboxylic acid and hydroxy compounds used in (b) include dihydroabietyl alcohol, oleyl alcohol, castor oil and sorbitan ester.