baber/WOPTO huggingface dataset:
Patent GB-1133105-A (GB)
Title: Improvements in or relating to milking systems
IPC: A01J5/04
Filed: 1966-03-11
Abstract: 1,133,105. Milking apparatus. O. METZGER. 11 March, 1966 [13 March, 1965], No. 10917/66. Heading A1M.  A milking system in which pulsations are applied alternately to pairs of teat cups comprises a vacuum line 1 provided with a pair of connecting nipples (3) for the vacuum hoses (4) of each milking device and a pulsator 8 for each milking device in the form of a rotary valve mounted on a common driven shaft 16 extending through the vacuum line. The valve is located in a sleeve 6 connecting adjacent sections 1a, 1b of the vacuum line and having a connection 7 to atmosphere. The valve has an axial through-bore (9) and a segmental recess 10 intersecting said through-bore such that on rotation of the valve the recess 10 moves successively into alignment with the nipples 3. A circumferential recess 12 in the valve communicates via passage 13 with a circumferential groove 14 which is constantly in alignment with air inlet 7, the recess 12 moving successively into alignment with the nipples 3 as the valve is rotated. A pin 15 locates the valve relative to vacuum line 1. In a modification (Fig. 4, not shown) two air inlets (7a) are provided extending from opposite sides of the vacuum line and displaced axially therealong, the valve being provided with two recesses (21) such that one recess is in communication with atmosphere and with one nipple (3) while the second nipple (3) is connected to vacuum. The valves corresponding to each device may be operated successively with a phase shift of a fraction of the pulsation cycle, the polygonal shaft 16 being twisted in a longitudinal direction.
Patent GB-473559-A (GB)
Title: Improvements in pumps for retailing liquids
IPC: F04B9/14
Filed: 1936-04-16
Abstract: 473,559. Dispensing liquids. CHAPMAN, W. G., and DUNNS' ENGINEERING WORKS, Ltd. April 16, 1936, No. 10924. [Class 102 (i)] A pump for dispensing milk &c., comprises a cylinder 1, which is immersed in a container, and is connected by rods 9 to a body 11 carried by a fixed support. The pump discharges, through the hollow piston-rod 8, to a chamber 17 in the body 16, which is provided with a discharge spout 18. The closed end of the piston-rod projects beyond the body 11 and is engaged by a roller 28 on an operating lever 25. The stroke is regulated by means of a screw 29. Stirring baffles 22 may be provided on the piston-rod, or on a separate rod 23.
Patent GB-1255628-A (GB)
Title: Electric power generator
Inventor: WEBB ALAN DAVID
IPC: H01L35/00
Filed: 1968-03-07
Abstract: 1,255,628. Thermo - electric generators. BRITISH PETROLEUM CO. Ltd. 3 March, 1969 [7 March, 1968], No. 11107/68 Heading H1K. A generator for supplying electric power to equipment at unattended petroleum well heads comprises a plurality of thermo-couples 12, each having one junction in thermal contact with the outer surface of a conduit carrying warm crude petroleum and the other junction in thermal contact with a cold outer sheath surrounding both thermocouples and conduit. The thermocouples are of P-type and N-type bismuth telluride. Where the generator is to be installed in air, the outer sheath 13 is pressure resistant but the conduit 11 is thin enough to allow the transmission of the pressure of the petroleum to ensure good contact between the thermocouples and the sheath and conduit. Where however the generator is to be installed in water the conduit is sufficiently strong to contain the pressure of the petroleum but the outer sheath is thin enough to allow the pressure of the water to ensure good contact between the thermocouples and the sheath and conduit. Spaces between the sheath and conduit not occupied by the thermocouples are filled with oil or pressure-resistant plastics 14. A plurality of generators may be provided in series on one conduit, or on parallel conduits, and the whole or only a part of the petroleum flow may be utilized. A similar generator may be used with natural gas.
Patent GB-934271-A (GB)
Title: Improvements relating to the production of blanks for turbine and the like blades
Inventor: POLLOCK JOHN
IPC: B21C23/16
Filed: 1961-03-27
Abstract: 934,271. Making turbine blades; extruding; forging. HENRY WIGGIN & CO. Ltd. June 27, 1962 [March 27, 1961], No. 11202/61. Classes 83 (2) and 83 (4). A metal blank 10, for subsequent machining into a turbine or like blade, is formed by extruding a metal billet through a die. A cast cylindrical billet of nickel-chromium or nickel-chromium - cobalt creep - resisting alloy is cast into an ingot 1. This is machined to remove surface defects, placed into a chamber 2 and therein upset by an hydraulic ram 5 to form a billet with a curved end having a convex surface 3 and a central depression 4. The resulting billet is then heated to 1170‹ C., placed in an extrusion press with the curved end 3, 4 leading, and extruded through a die to form an extruded product 6. The latter is then cut transversely into blade blank lengths 9 and each length is then cut longitudinally along line 8 into blade widths, with a brading tool which tends to remove any portion of the metal where segregation has occurred. Both the transverse and longitudinal cuts may be inclined to the blank surfaces, Figs. 3, 4 (not shown).
Patent GB-129430-A (GB)
Title: Improvements in and relating to Holders for Safety Razor Blades.
Inventor: PRESTON CHARLES WILLIAM
IPC: B24D15/10
Filed: 1918-07-09
Abstract: 129,430. Preston, C. W. July 9, 1918. Razors, safety. A holder for honing and stropping safetyrazor blades of various types comprises plain metal strips A, B hinged or otherwise secured together at one end and adapted to be locked together at the other end by a slide or catch D in order to hold the blade between them.
Patent GB-1249592-A (GB)
Title: Manufacture of photographically useful polymers
Inventor: COHEN HYMAN L
IPC: C08F8/00
Filed: 1969-03-03
Abstract: 1,249,592. Polymers of (N-substituted) maleimides. EASTMAN KODAK CO. 3 March, 1969 [1 March, 1968], No. 11279/69. Heading C3P. [Also in Division G2] A polymer containing (N-substituted) maleimide repeating units is made by reacting a polymer containing non-N-substituted maleimide repeating units represented by Formula I: in which of R‹ and R<SP>1</SP> is H or an alkyl group, with a compound containing a primary amine group which is benzylamine, aminoethanol, 4- aminobutyraldehyde diethylacetal or 2-hydroxyethyl hydrazine or which is represented by Formula II: in which each of R<SP>3</SP> and R<SP>4</SP> is a C 1-7  alkyl group or R<SP>3</SP> and R<SP>4</SP> together with the group Q represent the atoms necessary to form a tertiary nitrogen-containing cyclic group, R<SP>2</SP> is an aminoalkylene group or an alkylene group, m is 0 or 1 and Q is a nitrogen atom or a | | -CH- group provided that when Q is -CH-, R<SP>3</SP> and R<SP>4</SP> together with the group Q represent the atoms necessary to complete a tertiary nitrogen-containing heterocyclic group and that | m may be 0 only when Q is -CH-. In the examples, maleimide homopolymers or copolymers with n-butyl vinyl ether or styrene are reacted with benzylamine, aminoethanol, 4- aminobutyraldehyde diethyl acetal, 2-hydroxyethylhydrazine, N,N - dimethylaminopropylamine and N,N-dimethylpropylenediamine, and in Example 6 a polymer was quaternized with methyl p-toluenesulphonate.
Patent GB-946458-A (GB)
Title: Improvements in and relating to screw extruders
IPC: B29C48/67
Filed: 1960-03-30
Abstract: 946,458. Extrusion machines. O. FAHR. March 30, 1960 [April 10, 1959], No. 11293/60. Heading B5A. An extrusion machine comprises a feed hopper 2 with stirring blades 3, a two-part cylinder 11, 11<SP>1</SP> and a screw having a feeding section 1, a working section la, a kneading section 4, a throttling section 6 to control the pressure and dwell of the material in the kneading section 4, a pressureless section 7 co-operating with a vacuum out 8 of the cylinder and an extrusion section 7<SP>1</SP> co-operating with a nozzle 9. The part 11<SP>1</SP> of cylinder is axially movable to vary the throttle opening and the portions of the screw are exchangeably mounted on a shaft 10.
Patent GB-768786-A (GB)
Title: Improvements in and relating to planar type electron tubes
IPC: H01J21/36
Filed: 1955-04-19
Abstract: An alloy consisting of 58 per cent iron, 36 per cent nickel, and 6 per cent chromium has an expansion coefficient comparing with such ceramics as alumina, steatite, and zircon, and it may therefore be suitably sealed to these in making discharge tube envelopes.
Patent GB-113737-A (GB)
IPC: D06F1/00
Abstract: 113,737. Taylor, A. B. July 3, 1917. Wash-tubs. - A main receptacle 1 is formed with two or more auxiliary receptacles 2 for rinsing, blueing, &c., the bottoms of which are at a higher level. The tubs are in communication by means of openings 3 controlled by sliding valves 4 having operating'-handles 4<1>. Waste outlets 6 with plugs 8 are provided. The legs 11 screw into sockets 9, 10 on the tubs so as to adjust for height. A cross-piece 16 serves as a wringer support.
Patent GB-610946-A (GB)
Title: Improvements in exercising devices
IPC: A63B69/26
Filed: 1946-04-13
Abstract: 610,946. Dashpots. AUTOMOTIVE PRODUCTS CO., Ltd., and HARRISS, J. H. April 12, 1946, No. 11378. [Class 108 (iii)] [Also in Groups XXIX and XXX] In a fluid-pressure jack with means for damping the movement of the piston at the end of its stroke, the fluid outlet comprises a spring- loaded tubular plunger, one end of which is engaged by the piston or cylinder near the end of the stroke to restrict the flow of fluid from the cylinder. In one embodiment, the cylinder head 16, Fig. 2, has a bore 30 containing a slidably mounted spring-loaded plunger 32 through which liquid is expelled when the piston moves to the left its flow being progressively restricted as the piston closely approaches the plunger. The pressure thus produced in the chamber 11 acting upon the projected annular area of the chamfered surfaces 36, 37 at the inner end of the plunger is just sufficient to maintain a clearance between the plunger and piston, and acting upon the piston slows down the movement of the jack for the remainder of the stroke.
Patent GB-750009-A (GB)
Title: Loading machine with inclined conveyor
IPC: B65G65/00
Filed: 1953-04-24
Abstract: 750,009. Portable loading machines; elevators. GEWERKSCHAFT EISENHUTTE WESTFALIA, and EGEN, H. April 24, 1953, No. 11416/53. Class 78 (1). An endless conveyer 14 of a portable loading machine is supported in a bearing 13 so that it may be swivelled horizontally and vertically by independently operated piston-and-cylinder devices 17, 18 secured to opposite sides of the conveyer and supported on brackets 15, 16. Material is fed to the conveyer over a shovel 21 by a scraper such as is described in Specification 749,260.
Patent GB-846048-A (GB)
Title: Electric arc welding
Inventor: SHAW PETER
IPC: B23K9/32
Filed: 1958-04-10
Abstract: 846,048. Welding by fusion. QUASI-ARC Ltd. March 31, 1959 [April 10, 1958], No. 11429/58. Class 83 (4). In arc-welding a butt-joint using a powder backing, an even backing of powder is built up between the work and a powder support by intermittently feeding the powder longitudinally of the joint towards a barrier. The powder 10 is supported in a trough 1 having a barrier 9 at one end and a hopper 2 at the other and resting on a member 3 supported on links 4 and vibrated by an eccentric 5, a cam, or an electro-magnetic vibrator. In a modification, the trough 1 is secured to the work by clamps 18 with the interposition of say soft rubber sealing strips 16. The trough alone may be vibrated or the work may also be vibrated and the vibrations may be stopped or maintained during the welding. Gas shielded or flux submerged arc-welding or coated electrode welding may be used. The backing powder is a flux.
Patent GB-959635-A (GB)
Title: Method of machining bevel gears with cycloidal tooth traces
IPC: B23F17/00
Filed: 1962-03-26
Abstract: 959,635. Gear-cutting. W. FERD KLINGELNBERG SOHNE G.m.b.H. March 26, 1962 [March 25, 1961], No. 11430/62. Heading B3K. Spiral bevel gears having cycloidally curved teeth are roughed and finished by a single cutter block, the roughing and finishing blades coming into action successively. Blades 1-6, Figs. 1, 2, constitute a blade group, 1 being an inside roughing blade, 2 an inside finishing blade, 3 and 4 centre cutting blades, 5 an outside roughing blade, and 6 an outside finishing blade. In the roughing position, Figs. 1, 2, cycloidal paths 2<SP>1</SP>, 6<SP>1</SP>, followed by finishing blades 2, 6, are inside the roughing paths 11, 5<SP>1</SP>, and therefore do not cut. On completion of the roughing cut, which may be a plunge feed, angle # 1  between blades 1 and 2, is reduced, and angle # 111  between blades 5 and 6, is increased, the gear being cut is rotated through an angle α relative to the cutter, and blades 2, 6 take finishing cuts. Blades 1, 6 may be pivoted relative to blades 2-5, or vice versa, and the two sets of blades may be mounted on separate rotatable plates on the cutter block. In a modification, angles # 1  remain constant and the sweep radii of the blades vary. In a further modification, the sweep radii remain constant but the axes of these radii are varied. Specification 759,501 is referred to.
Patent GB-1036910-A (GB)
Title: Improvements relating to internal shoe drum brakes
Inventor: DUDLEY JOHN TREVOR
IPC: F16D65/22
Filed: 1963-06-08
Abstract: 1,036,910. Internal shoe drum brakes. GIRLING Ltd. May 27, 1964 [June 8, 1963], No. 11470/66. Divided out of 1,036,909. Heading F2E. The subject matter of the Specification is the same as that of the parent Specification, but the claims are directed to the arrangement of the cable-operated cam on an inwardly-offset extension of the anchor pin.
Patent GB-683309-A (GB)
Title: Improvements in the electrolytic polishing of metals
IPC: C25F3/22
Filed: 1950-05-09
Abstract: 683,309. Electrolytic polishing. CHARLESWORTH, P. A. Aug. 3, 1951 [May 9, 1950]. No. 11475/50. Class 41. Stainless steel and other ferrous alloys with chromium or nickel and nickel, chromium and alloys thereof are polished electrolytically in an electrolyte containing sulphuric acid, with or without phosphoric acid, to which a relatively small amount of an aliphatic amino compound or compounds has been added. The additive may be for example benzylamine, triethanolamine, allyl amine, or mixed isopropanolamines, the proportion of additive being within the range of 0.1 to 10 per cent by weight of the electrolyte. The electrolyte may also contain an aromatic amino compound such as described in Specification 622,118. Specification 683,310 also is referred to.
Patent GB-653759-A (GB)
Title: Improvements in or relating to microscope manipulators
IPC: G02B21/32
Filed: 1948-04-27
Abstract: 653,759. Microscopes. SINGER INSTRUMENT CO., Ltd., and SINGER, A. E. SAUNDERS-. April 27, 1948, No. 11559. [Class 97 (i)] A microscope manipulator has a fixed member and a member which is movable over the surface thereof and is characterized in that the members are held out of general surface contact by contacts located at three spaced positions and adapted to provide respectively single point contact, two point contact and three point or line contact between the members. In the form shown the two members comprise a fixed plate 10 having spherical projections 11, 12 and a conical bearing 13 in its upper surface and a plate 1, which is movable over the surface of plate 10 and has on its underside a V-groove 15, a plane projection 14 and a conical bearing 16. The groove 15 and projection 14 rest on the spherical projections 12, 11 of plate 10, while bearing 16 rests on the ball end of a lever 7 having another spherical projection which seats within the bearing 13. Thus, a large movement of the free end of lever 7 imparts a small movement in a horizontal plane to the plate 1, this plate carrying a link 2 to which is clamped at 4, 5 a linkage supporting a stylus, dissecting needle or pipette for use with a microscope. Rocking movement is applied to the lever 7 by a rotatable hand grip 6 spaced from an apertured rotatably-mounted member 22 by rods 23, 24, 25 on which slide collars 26, between which are feed-openings (not shown), having a slidable grip on the lever 7. The lower end of lever 7 rests on a ball 29 which is a tight fit in a bearing in the member 22. This ball 29 is connected to the base by a rod which threads through a screwed shank so that when hand grip 6 is rotated, the shank is raised or lowered. The movement of this shank is transmitted via a rocking bridge to a vertically movable plate 36 which is movable over the vertical face of a member 41 and is integral with a platform 40 attached to the underside of plate 10. Thus, rotation of hand-grip 6 causes vertical movement of plates 1 and 10 and of the stylus or the like indirectly attached to the link 2. Beneath base 31 and connected thereto for relative movement therewith is an under-base. Such movement is obtained by manual operation of a lever 56 seated in conical bearings in the base and under-base. Base 31 is locked to underbase after adjustment by moving a lever 60.
Patent GB-270332-A (GB)
Title: Improvements in or relating to carburettors for internal-combustion engines
IPC: F02M1/00
Filed: 1927-04-30
Abstract: 270,332. Longoni, E. April 30, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Spray carburettors. - The carburettor has main and slow-speed nozzles, the fuel being mixed with air before, its discharge into the suction passage; light and heavy fuels may be employed alternatively or in combination. Fuel from a float chamber 18, Fig. 2, passes through a calibrated orifice 28, tube 22 and openings 25 at the upper end thereof, to a well 26 where it is mixed with air entering through a cock 28 and duct 27 before passing to the main nozzle 20 in the suction passage 31. The slow-running device comprises a well 16, Fig. 1. fed from the float chamber through a duct 6, the well enclosing a tube 1 with calibrated bore and with orifices 3 in its wall. The well is open to atmosphere at 17 and the mixture passes to the outlet 9 through a bore. 7 open to atmosphere at 8. The butterfly throttle 10 is actuated by an arm 11 and the slow-running opening can be adjusted by a screw 13 in an arm 12. A carburettor for use with two fuels comprises a light fuel float chamber 18, Fig. 3. and a heavy fuel chamber 35. These supply respectively, according to the method described above, main chambers 22, 36 and slow running devices 1, 37. The main chambers deliver mixture to the interior of a valve 41 rotatable in a casing 46 and having outlet orifices, such as 43, for delivery into the main suction passage 15. The ports in the valve 41 may be arranged to give an alternative or a simultaneous supply. The slow running mixture passes through a duct 7<1>, controlled by the spindle 50 of the throttle valve, to the suction passage on the engine side of the throttle. A cock 51 permits of cutting off either of the fuels that is not required.
Patent GB-128770-A (GB)
Title: Improved Construction of Wings, Aerofoils and the like for Aeronautical Machines.
Inventor: MAYROW JAMES JACOB
IPC: B64C3/00
Filed: 1918-07-16
Abstract: 128,770. Mayrow, J. J. July 16, 1918. Framework; planes, arrangement and construction of. - The framework of wings, aerofoils, &c. is composed of obliquelyarranged ribs and connected spars forming a series of triangles. The spars are parallel, or nearly so, with the front edge of the wing, and the ribs and spars are secured together by plates 10, Fig. 13, at their crossing or meeting points and have front, rear, and side edge connexions, internal wiring being dispensed with. The ribs may be made from short lengths, Figs. 1 and 2, joined together, the meeting ends 8 being bent and shaped, and the ribs also having recesses 7 for the channel spars. The ribs may be V-shaped with centre portions riveted together, and may consist of channels 20, Fig. 27, and angle-irons 21 with distance-pieces 22, the spars in this case consisting cf U-members 18 and oblique distancepieces 19. The spars may also consist of channelled metal, Fig. 15, apertured at 15 for lightness and at 16 to receive the ribs, and provided with strengthening-plates 17. Stretchers or supports of tape or metal are provided for the fabric at the open parts between the ribs and spars. Attachment to the struts is provided by the plate 25, Fig. 9, formed to fit and secured to the ribs, spars, and rods, the plate also transmitting stresses. Plates 13, Fig. 11, are secured to the aileron and to the wing, and connected by a transverse pin acting as a hinge-pin.
Patent GB-976358-A (GB)
Title: A process for the production of artificial marble
Inventor: ASLAM MOHAMMAD
IPC: B44F9/04
Filed: 1962-03-27
Abstract: Artificial marble is produced by mixing particles of at least one pulverized, insoluble, non-setting, alkaline earth metal sulphate and an aqueous solution of an alkali metal silicate, the mixture then being moulded under pressure, dried and fired.  The alkaline earth metal sulphate may be calcium, strontium or barium sulphate, preferably as the minerals gypsum, celestite or barytes, or mixtures thereof, and should be carbonate free.  A chloride of an alkali or alkaline earth metal, e.g. NaCl or CaCl2, or ZnCl2, in amount 0.2-1%, may be incorporated when the alkaline earth metal sulphate is other than barium sulphate. Silicates may be, for example, sodium or potassium silicate in amount 1-10% by weight of the sulphate.  The silicate is added in solution (e.g. 10-20% concentration) and the sulphate and silicate may be mixed in a kneader and the mixture moulded under a pressure of 500-4000 p.s.i. The product is then dried at ambient temperature or at 105 DEG  C.  It is then fired in a furnace, preferably a muffle furnace, -wherein the temperature is gradually raised, at a rate not exceeding 100 DEG  C./hr. to 800-1150 DEG  C. and the product is maintained at this temperature for 0 to 8 hours. The material is then cooled to 200 DEG  C., or below, and is then polished with a waxy composition, preferably an emulsion. The material made from barytes has a higher radio-active radiation shielding efficiency than natural marble.
Patent GB-745544-A (GB)
Title: Improvements in or relating to portable electric tools
Inventor: GUBBINS CHARLES HENRY
IPC: H01H9/06
Filed: 1953-04-28
Abstract: 745,544. Switch cases. WOLF ELECTRIC TOOLS, Ltd. April 14, 1954 [April 28, 1953], No. 11749/53. Class 38(5) [Also in Group XXIII] The handle 1 of a portable electric tool has an insulating lining 11 moulded thereto adjacent the contacts 6, 7 and terminals of a switch. The lining has a web 12 at one end, through apertures 13. 15 in which pass the leads 8, 9. The handle may have a separate cover plate (not shown) also having an insulating lining with an apertured web.
Patent GB-595738-A (GB)
Title: Process for the preparation of 2-amino-4-methyl-pyrimidine
Filed: 1945-05-10
Abstract: 2-Amino-4-methylpyrimdine is obtained by oxidizing 1-butinol-3 to 1-butinone-3 and treating this (preferably as its water azeotrope) with a guanidine salt, preferably in the presence of sulphuric acid. In examples: (1) a 1-butinol-3 is oxidized with potassium dichromate in aqueous sulphuric acid at 20 DEG  C. and the resulting water azeotrope of 1-butinone-3 is warmed at 30 DEG  C. with guanidine nitrate in 40 per cent sulphuric acid; (2) 1-butinone-3 water azeotrope is warmed at 80 DEG  C. with guanidine sulphate in 50 per cent sulphuric acid.