baber/WOPTO huggingface dataset:
Patent GB-375665-A (GB)
Title: Improvements in kettles and like liquid heating vessels
IPC: A47J27/21
Filed: 1931-10-27
Abstract: 375,665. Kettles &c. CHRISTOPHER, H. F., 35, High Street, Geelong West, Victoria, Australia. Oct. 27, 1931, No. 29716. [Class 66.] A kettle or like liquid-heating vessel has a domed false bottom 4 forming with the bottom 3 a pre-heating chamber 6 into which liquid enters through openings 9 formed near the marginal edge and from which heated liquid passes to the body of the vessel through openings 14 disposed at intervals along an upstanding tubular member 12.
Patent GB-670486-A (GB)
Title: Improvements in and relating to metal-vapour electric discharge apparatus
Inventor: BERTELE HANS CARL
IPC: H01J13/12
Filed: 1949-10-12
Abstract: 670,486. Metal-vapour discharge apparatus. BERTELE, H. C. Jan. 11, 1951 [Oct. 12, 1949], No. 29748/50. Divided out of and addition to 670,416. Class 39 (i). In liquid-electrode apparatus as described in the parent Specification and Specification 670,485, in which the pool container is formed of, or lined with, arc-resisting metal wetted by the mercury, such as tungsten or molybdenum, the total thickness of the container or container plus lining does not exceed 2 mm. This limitation may be applied to any of the arrangements described in the above Specifications, or to the modification of Fig. 8, in which the arcfixing surface is formed by a lining of tungsten or molybdenum sponge 82 surrounding a tube 85 sealed centrally through the mercury pool 5, the tube being liquid cooled internally as shown. Fig. 6 shows the invention applied to a device having a steel envelope 61, the lower part containing the mercury pool having a tungsten or molybdenum sponge liner 12, an insulating liner 68 preventing the arc spot from riding. up the metal wall. A starter anode 6 passes upward through the main anode 62 inside a metal tube 67 having an insulating lining 72, and is operated by a solenoid 9. The supports 77 of the grid 63 are attached via nickel strips 76, mica strips 75 and a quartz member 74 to a central boss 70 in the top closure 69.
Patent GB-210519-A (GB)
Title: Improvements in means for interconnecting building blocks
IPC: E04B2/08
Filed: 1922-10-31
Abstract: 210,519. Makram, T. Oct. 31, 1922. No Patent granted (Sealing fee not paid). Building-blocks, special shapes of; flooring and roofing blocks.-Building blocks for walls, roofs, stairs, and floors are provided on all contacting faces with interengaging undercut ribs and channels which interlock by a sliding movement and extend completely across the faces, as shown in Fig. 1; the ribs and channels are omitted from those faces which are exposed, as for example, the outer or inner faces of a wall, or a floor or ceiling, as shown in Fig. 2. The ribs on one face may be at right angles to the corresponding channels on the opposite face. Two or more ribs or channels may be provided on any face. Reinforcing bars may be passed through holes in the blocks, and the blocks themselves may be reinforced by metal skeletons which form the ribs and channels. For portable buildings the mortar may be omitted from the joints.
Patent GB-836473-A (GB)
Title: A method of refining sugar solutions
IPC: C13B30/12
Filed: 1957-09-23
Abstract: In preparing sugar, the run-off liquors which can no longer be boiled for crystallizing of white sugar are desalted to a sugar content of at least 93%, and the desalted liquors are boiled and crystallized to yield sugar of at least white sugar quality.  The desalting may be effected by anion and cation exchange, electrodialysis, and electrodialysis in combination with ion exchange.  The process is applicable to molasses produced by conventional boiling processes and to sugar and sugar solutions of a low degree of purity; the process avoids a final run-off of molasses, the non-sugar substances being removed in the desalting.  A cyclic procedure entails concentrating beet or cane thin juice, boiling and crystallizing the thick juice so obtained, diluting the liquor run from the crystals, desalting and decolorizing this liquor to produce 93% sugar content, combining the desalted and decolorized liquor with a further batch of thin juice, and repeating the operations; modifications of this cyclic procedure may be the combining of a further batch of thick juice with the desalted and decolorized liquor, concentration of such liquor before it is combined with the thick juice, and crystallizing such liquor to obtain white sugar before combining run-off liquor from this sugar with the thick juice. Specification 740,840 is referred to.
Patent GB-1092187-A (GB)
Title: A centrifugal speed governor for fuel injection internal combustion engines
Inventor: WINKELMANN LOTHAR
IPC: F02D1/10
Filed: 1965-07-15
Abstract: 1,092,187. Centrifugal governors. KRAFTFAHRZEUGZUBEHOERWERKE DRESDEN VEB. July 15, 1965, No. 30001/65. Heading G3B. A centrifugal speed governor for fuel injection engines has fly-weights 3 to operate a control rod 7 through a transmitting system comprising a governor regulating spring 15, an idling spring 24 for controlling the lower speeds, and an assimilating spring 22 for reducing the fuel supply to the engine so as to compensate for droop from the starting speed to the nominal or adjusted load speed, the springs 22, 24 being arranged in a single adjustable sleeve 17. The sleeve 17, which is carried by a lever 6 pivotally mounted on a shaft 12 and connecting the fly-weight carrier to the rod 7, is secured in its adjusted position by a lock nut 18 and contains an abutment 21 located between the springs and secured and adjusted by nuts 23. During initial pivotal movement of the lever 6, a cap 25 slidably mounted in the sleeve is displaced inwardly by engagement with a bevelled surface on a lever 14 to compress the idling spring 24 until the inner end of the cap engages the plate 21. Further pivotal movement of the lever 6 now causes compression of the assimilating spring 22 until the load is sufficient to rotate the lever 14 about the shaft 12 against the tension of the spring 15, the latter having one end connected to the lever 14 and the other end to an adjustable lever 13.
Patent GB-778716-A (GB)
Title: Improvements in or relating to spraying booms
Inventor: BRUCE EWEN ANTHONY GUY CAMERON
IPC: A01M7/00
Filed: 1953-10-30
Abstract: 778,716. Crop sprayers. WESTON, H. W. Oct. 28, 1954 [Oct. 30, 1953], No. 30007/53. Class 69 (3). A spray boom comprises sections 19, 20, 21 and 22 extending from the sides of a vehicle 17, and the adjacent sections are hinged together and provided with ground wheels 48 at their hinge points so that the sections can move in a vertical plane to follow the land contour over which the boom is running. Wheels 55 are provided at the boom ends. The inner ends of the sections 20, 21 are hinged to a central cage structure 14 on the vehicle, which structure is pivotally mounted at 43, Fig. 3, about the upper ends of vertical supports 15 ; the arrangement is such that the boom sections on each side of the vehicle can be folded together in a vertical plane and then turned in a vertical plane at right-angles to the first plane so that the folded structure lies approximately horizontally on the vehicle. At each wheeled hinge point the adjacent ends of the sections are each provided with a pair of aligned and spaced pinions or segments 49, Figs. 4 and 6, which have a pivot pin 50 passing through their centres. The pairs of segments intermesh to provide a geared knuckle joint, and the pins 50 provide pivot points for plates 51 rigidly secured to trusses 23a extending forwardly and rearwardly of the boom. Struts 25 are connected between plates 24 on the trusses and plates 26 on the boom sections. The outer end of each truss 23a includes vertical pivots 46 which receive the spigot portion of a fork 47 carrying a wheel 48, e.g. a cycle wheel. Additional transverse members 27, 28 are uniformly spaced along the boom sections, and bracing rods 32, 35 extend between various members and are secured by nuts mounted on the hreaded ends of the rods. The spring bar 57 is in the form of a hose and extends along the boom and is held by clips at the forward ends cf the transverse boom members. Each hose nozzle may comprise narrow annular collars fitting tightly over the hose and having an orifice therein in register with a hose orifice. A rigid bar 59, Fig. 2, pivoted at 60 and extending beyond the end of the boom is carried in a spring clip at the end of a strut 62, and if its outer end strikes an obstruction it swings about its pivot to warn the driver.
Patent GB-535626-A (GB)
Title: Improvements in or relating to electro-optical control apparatus
IPC: H01J40/14
Filed: 1939-11-14
Abstract: 535,626. Photo-electrically controlled apparatus. BROIDO, D. Nov. 14, 1939, No. 30041. [Class 40 (iii)] Records bearing optical code spots are examined by a photo-electric device provided with shutters which are arranged in edge to edge contact to form a light-impervious screen and can be selectively withdrawn to determine a desired selection of code spots for controlling a subsequent operation, for example the sorting of the records or the use thereof for printing addresses. The records may have two sets of code spots in a single line or in two parallel lines, and the photo-electric device may examine the two sets simultaneously or in succession. In the address printing machine shown in Figs. 1 and 2, address plates 4 of the kind shown in Fig. 3 are fed one at a time from a stack 3 by belts 6 to the photo-electric device 8. This device comprises a lamp 24, Figs. 4 and 5 with reflector 26 and lens 29 in an upper casing 27, and a photo-cell 25 with lens 36 in a lower casing 34. A number of shutters 37 can be put in or out of position beneath a slot 30 below the lens 29 by means of toggle levers 41. There is also a lower shutter 49 normally maintained by a spring 52 below the whole length of the slot 30. When a record plate 4 comes in position between the upper and lower casings 27, 34, its front edge deflects the shutter 49 away, allowing the light from the lamp to the cell to be controlled by the shutters 37 and the code marks 23 on the record plate. If all the perforations of the code marks are covered by shutters, no light passes to the cell and the printing mechanism is operative. If the code marks of a record are not in agreement with the setting of the shutters, light passes to the cell, which is connected to an amplifier 54, whereby an electromagnet 56, Fig. 2, is de-energized. A linkwork 59, 61 carrying the armature 58 is then raised by a spring 65 and a stop 63 also carried by this linkwork comes up in the path of a lug 66 on the printing lever 12, which is thus put out of action. When this stop is down when the record has the selected code marks, the lever 12 is periodically released by a cam 17 and operated by a spring 18 to press a printing pad 13 over a sheet 20 and an ink ribbon 21 on to the record 4 when this is in the position 9, Fig. 1. The linkwork 59, 61 is periodically moved down by a cam 67 synchronized with the cam 17. The code spots used may be transparent or positive or opaque or negative or operate by reflection or in conjunction with adjustable reflectors instead of shutters. The records may have two sets of code marks, one positive and one negative, in one line or in two parallel lines. For examining parallel code lines such records in succession, a circuit comprising two relays is provided. If the first set of code marks of a record is that selected by the shutters, the first relay sets the second relay in readiness for control by the next set of code marks, and if this second set is also as selected, a signal passes out to control the electromagnet 56.
Patent GB-705360-A (GB)
Title: Improvements in or relating to organic fluid vapour diffusion pumps
IPC: F04F9/00
Filed: 1952-11-28
Abstract: 705,360. Oil vapour diffusion pumps. EASTMAN KODAK CO. Nov. 28, 1952 [Nov. 30, 1951], No. 30160/52. Class 71. In an oil diffusion pump comprising interconnected concentric boiler compartments 38, 39, 40 from which vapours at different pressures ascend concentric chimneys 35, 36, 37 to nozzles formed by their upper open ends and caps 44, 45, 43 and located between inlet and outlet ports 22, 26, pump fluid is drained from the inner boiler compartment 40 into a sump 54 and. gases are conveyed from the sump through means e.g., a conduit 58 into a chimney e.g., the chimney 36 other than the one leading from the boiler 11 to the jet nearest the inlet 22. A dam 31 in a forepressure duct 27 collects condensate which is drained through a plugged conduit 32.
Patent GB-188947-A (GB)
Title: Improvements in or relating to hydraulic motors
IPC: F03C1/26
Filed: 1921-11-11
Abstract: 188,947. Variable Speed Gear, Ltd., and Ingoldby, M. K. Nov. 11, 1921. Liquid-pressure engines; speed-varying mechanism.-Hydraulic motors, especially those having cylinders parallel to the axis of rotation and forming part of a transmission gear, are provided with one or more control valves and one or more auxiliary valves, the latter being so constructed as to open fully the exhaust conduit of the motor when there is pressure in the pressure conduit. In the form shown, the conduits A<1>, A<2> of the motor A are connected by pipes d<1>, d<2> to the casing of the auxiliary valve D, so that pressure iu either conduit acts through a groove d<x> to move the valve so as to put the other conduit into communication with a pipe d connected with the suction conduit B<2> of the pump B, so that the motor exhaust passes to the pump without having to pass through the controlling valve C. In another form, the auxiliary valve is mounted in the valve plate of the motor.
Patent GB-798439-A (GB)
Title: Process for the manufacture of terephthalic acid dimethyl ester
IPC: C07C69/82
Filed: 1955-10-21
Abstract: Dimethyl terephthalate is prepared by the esterification of terephthalic acid with methanol at elevated temperature and pressure in a closed vessel, wherein an aromatic hydrocarbon, liquid at room temperature and having a boiling point below 250 DEG  C., is added to the esterification mixture.  Specified hydrocarbons are benzene, toluene and xylene.  Specified reaction temperatures and pressures are between 220 DEG  and 260 DEG  C. and 70 to 110 atmospheres.  In examples, a suspension of terephthalic acid in xylene and methanol is passed through a heated pressure tube and the results compared with that of the process wherein methanol alone is used.  Dimethyl terephthalate is obtained from the mixture withdrawn from the pressure tube by allowing it to vaporize, separating unreacted terephthalic acid and passing the vapours into a vertical fractionating column, methanol, water and some xylene being obtained at the head of the column and a hot solution of dimethyl terephthalate in xylene at the base, which solution is washed with hot aqueous alkali and cooled to crystallize dimethyl terephthalate.
Patent GB-300785-A (GB)
Title: Improvements relating to pumps
IPC: F04D29/04
Filed: 1927-11-10
Abstract: 300,785. Hayhurst, W. Nov. 10, 1927. Shaft couplings. - The lower end of the driving shaft a of a centrifugal pump is formed with an enlarged hollow part b having inturned threads that are engaged by a tapered screwed ring e, a coned or tapered split bush d being assembled between the upper end of the pump shaft c and the member e and a nut f being provided to cause the bush to grip the pump shaft. The direction of the thread of the nut f is such that the rotation of the driving shaft tends to tighten the nut. The shaft c is of silicon iron capable of resisting corrosive action of acids dealt with by the pump.
Patent GB-1190451-A (GB)
Title: Ion Source for a Mass Spectrometer
IPC: G01N27/62
Filed: 1967-06-30
Abstract: 1,190,451. Ion sources. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 30 June, 1967 [2 July, 1966], No. 30219/67. Heading H1D. An ion source for a mass spectrometer wherein gas is ionized by an electron beam 1 moving in the direction of a magnetic field B, the resulting ions being extracted through a gap 3 into an ion lens 10-15, is characterized by the provision of a flat grid electrode 7 consisting of parallel wires at right angles to the electron beam and to the extracted ion beam. The grid is preferably mounted at the open end of a frusto conical electrode 8, and separates a region of low electric field (a few volts/cm.) adjacent the electron beam from a region of high electric field (tens of volts/cm.) in the ion lens. A repeller electrode 6 is preferably provided on the opposite side of the electron beam from the grid and may be at a small positive potential relative to the grid; one of the two electrodes may be connected to the housing 4, the other being insulated from the housing, or both electrodes may be connected to the housing. Mass discrimination in source itself is avoided by this arrangement.
Patent GB-1332607-A (GB)
Title: Method for making urethane-terminated polycarbodiimides and products thereof
IPC: C08G18/00
Filed: 1972-06-20
Abstract: 1332607 Polycarbodiimides GENERAL TIRE & RUBBER CO 28 June 1972 [5 Oct 1971] 30332/72 Heading C3R  Urethane-terminated polycarbodiimides are obtained by first reacting an arylene diisocyanate with stoichiometric deficiency of a primary or secondary aliphatic alcohol to convert less than all of the isocyanate groups to urethane groups, and then adding a catalyst to polymerize the partially urethane-terminated arylene diisocyanate to a urethane-terminated polycarbodiimide. In examples mixtures of 2,4- and 2,6-toluene diisocyanates are reacted with methyl alcohol and with 2-ethyl hexanol and then 1-phenyl-3-methyl-3-phospholine-1-oxide is added with heating to catalyse the polymerization to urethane-terminated polycarbodiimide; products of the invention are blended with peroxide-curable polyester urethane rubbers, dicumyl peroxide and carbon black, formed into sheets and press cured with heating.
Patent GB-752088-A (GB)
Title: Improvements in or relating to copying lathes
IPC: B23Q35/06
Filed: 1953-11-03
Abstract: 752,088. Copying-turning. SCHONDORFF, A., [trading as HEGENSCHEIDT KOMM.- GES. W.]. Nov. 3, 1953 [Nov. 3, 1952], No. 30335/53. Class 83 (3). A copying-lathe, more particularly for railway-wheels, comprises a main slide fed in a direction parallel to or inclined with respect to the axis of the work and a number of individual tool-slides mounted thereon, each tool slide having individual means for feeding it in an angular direction relative to the work axis and individual tracing means connected with the feeding means to trace different portions of a pattern during longitudinal movement of the main slide. Three tools 1-3, Fig. 1, on angularly-arranged slides 8-10 respectively are fed by individual hydraulic cylinders 14-16, the whole being carried on a longitudinally-adjustable slide 17. The feed of each tool-slide is controlled by tracers 18-20 respectively which contact different portions of a pattern 21. The latter is carried at the extremity of an overhead beam 25, Fig. 2, and may be adjusted transversely and longitudinally. The main-slide 17 supporting the tool-slide is fed by a handwheel 71, Fig. 1, or automatically by means not shown, and is supported on a further slide 24 so that its inclination to the work axis may be varied. Specification 759,913 is referred to.
Patent GB-346723-A (GB)
Title: Improvements in and relating to glass blowing moulds and methods of making the same
IPC: C03B9/48
Filed: 1929-10-07
Abstract: 346,723. Blowing glassware. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Brown, C. A. ; 1854, Burnett Road, East Cleveland, Ohio, U.S.A.) Oct. 7, 1929, No. 30371. Convention date, Oct. 5, 1928. Void [Published under Sect. 91 of the Acts]. [Class 56.] A mould, particularly intended for blowing ornamental electric lamp bulbs, comprises two members hinged together and carrying mould parts which are detachably secured to the members. The mould parts are made of an alloy, such as a bronze composed of 90 per cent copper and 10 per cent aluminium, which can be cast in an iron mould, so that little finishing of the parts is necessary. To make the moulds, patterns for casting the iron moulds in which the bronze is to be cast are prepared. The first step consists in mounting a model 10, Fig. 1, of an ornamental bulb on a potter's wheel 11, placing modelling clay or plaster 12 over the model, and removing the excess by turning the model past a clamped templet 13. The model may be made of plaster and is shellacked when dry. After the clay or plaster cast 12 has dried, the model 10 is removed and a pair of lugs 15, Fig. 4, is formed on the back of the cast 12 which is then shellacked and placed face downwards on a board 16. A casing made of boards 17, 18 is then placed around the cast, the board 17 passing longitudinally along the middle of the cast. The casing is then filled with plaster which is allowed to dry and is then removed. In this way, two casts 20, Fig. 6, are formed which have a cavity 21 of the shape of the cast 12 and of the board 16. The casts 12, 20 are assembled and are filled with plaster to form a third cast 24, Fig. 8, having on it a profile of one-half of an ornamental bulb. The casts 20, 24 are now assembled, a gate 25, a passage 26, and risers 27 are formed. The plaster patterns are then moulded in fine sand and permanent cast-iron sections are cast. These iron sections are used for casting the bronze moulds in which the glass bulbs are blown. The finished mould sections are secured by bolts 34, Fig. 9, to hinge members 29, and are provided on their meeting faces with file marks 30 to serve as air vents.
Patent GB-636282-A (GB)
Title: Improvements in or relating to spring forks for motor cycles
IPC: B62K25/08
Filed: 1947-11-15
Abstract: 636,282. Motor-cycle spring forks. BIRMINGHAM SMALL ARMS CO., Ltd., and PERKINS, H. Nov. 15, 1947, No. 30378. [Class 136 (iii)] In a spring fork for motor-cycles consisting of a fixed outer tube 1 secured to the steering head 3 and a sliding inner tube 13 carrying the wheel axle, the tube 13 constituting the spring controlled sliding member is formed at one end with a spiral groove 23 into which is screwed the end coils of the spring 17. As shown in Fig. 2, the upper end of the tube 13 is reduced to a diameter which is slightly greater than the diameter of the spring 17. The spiral groove 23 may be formed by rolling or swaging and its helix corresponds to the coils of the spring. Specification 636,281 is referred to.
Patent GB-1490415-A (GB)
Title: Non-digestible starch based food additives
IPC: C08B30/12
Filed: 1975-07-21
Abstract: 1490415 Non-digestible starch esters of polybasic acids PFIZER Ltd 20 July 1976 [21 July 1975] 30401/75 Heading C3U [Also in Division A2] A process for preparing a non-digestible food additive comprises heating a mixture of starch or a starch hydrolysate with an edible di- or tribasic carboxylic acid or anhydride at 140- 220 C. under reduced pressure until a non- digestible product has formed as determined by its resistance to the action of amylolytic enzymes, the mixture having prior to and during such heating a moisture content of less than 5 wt. per cent water and containing 1-25 wt. per cent of the edible acid (or equivalent amount of anhydride). The acid is preferably citric acid.