baber/WOPTO huggingface dataset:
Patent GB-904147-A (GB)
Title: Improvements in surveyor's levels
Inventor: DAVIES WILLIAM ERNEST
IPC: G01C5/00
Filed: 1959-07-27
Abstract: 904,147. Levels. COOKE, TROUGHTON & SIMMS Ltd. July 14, 1960 [July 27, 1959], No. 25689/59. Class 97 (2). A surveyor's level has the spirit level 8 adjustably mounted in a housing 7 carried along one side of the telescope casing 6, the arrangement being such that light passing through an upper heat absorbing window 23 and attached opal glass diffuser illuminates the spirit level 8, and a coincident prismatic device 27 forms images of both ends of the air bubble for passing through the windows 25, 28 to an eyepiece 30. Adjustment screws 31, 32, acting on a tongue 19 of the tube 11 carrying spirit level 8, allow pivoting of the latter about the ball-and-socket joint 15.
Patent GB-148082-A (GB)
Title: Improved process of roasting cocoa and apparatus for the purpose
IPC: A23N12/08
Filed: 1919-10-20
Abstract: 148,082. Levy, L. A. Oct. 20, 1919. Roasting granular substances.-Cocoa is roasted in such a way that it is not brought into contact with any surface at a temperature higher than that to which it is desired to subject the beans, e.g. 140‹ C., the heat being applied indirectly. It is stated that in such circumstances the cocoa can be allowed to remain under treatment for a prolonged period without deterioration. The cocoa passes from a hopper 15 on to an endless chain or belt 8 whereon it is distributed by stirrers 20 mounted on vertical shafts or by blades rotating on horizontal shafts. Heat is applied by means of pipes 13 through which hot water is circulated, the heating chamber being closed by casings 17, 18 and provided with a chimney 14 for the escape of steam. A succession of such endless belts arranged in a vertical series may be employed.
Patent GB-826128-A (GB)
Title: Improvements in or relating to the separation of isotopes
Inventor: AUGOOD DEREK RAYMOND
IPC: B01D59/24
Filed: 1955-09-08
Abstract: A mixture of hydrogen, hydrogen deuteride and deuterium is treated at a temperature below 5 DEG  C. with a liquid at such a temperature that the HD and D2 transfer to the solvent and are removed by heating and/or reduction of pressure.  Exemplified liquids are nitrogen, neon, argon, carbon oxides, methane, sulphur dioxide, nitric oxide, ammonia, brines, and liquid and low molecular weight hydrocarbons.
Patent GB-189589-A (GB)
Title: Improvements in or connected with galvanic batteries
IPC: H01M50/166
Filed: 1921-09-29
Abstract: 189,589. Oldham, G., and Oldham, J. Sept. 29, 1921. Plug-stoppers, screw and bayonet joint; retain. ing-devices in receptacle neck above closure. - The lid of a battery cell is wholly contained within the top of the cell and makes a tight joint with the cell by means of a washer 20 secured in a groove in the lid and engaging a flange 15 on the internal wall of the cell, the lid being pressed down by a ring 21 detachably fastened to the cell. The flange 15 may be integral with or cemented to a separate annular member 13 fitted to the cell, or it may be fixed to the cell itself. The ring 21 bears upon the lid and may be screwed into or on to the exterior of the cell, as shown in Fig. 1, or it may be provided with projections to engage bayonet slots in the cell walls. Fig. 7 shows a modification in which the ring is formed in two or more sections adapted to engage in a recess 29 in the cell wall. The inner peripheries of the sections may be bevelled as shown at 28<a> to engage the bevelled edge of a disc 31 which can be raised or lowered by screws passing through the disc and screwing into the lid. Instead of a sectional ring, a single split spring ring may be employed.
Patent GB-267033-A (GB)
Title: Improvements in machines for cutting slots in key blanks
IPC: B23C3/35
Filed: 1926-10-16
Abstract: 267,033. Long, G. A. Oct. 16, 1926. Keys for locks.-A machine for cutting slots in key blanks or the like comprises a number of adjustable rotary cutters and a carrier for one or more blanks movable to bring the blank under the operation of each cutter in succession to cut a series of notches in the blank. The carrier 6, which carries two blanks clamped by means of a hand-lever 22, is mounted on a series of plates 7<1> carried by a reciprocating slide 4. The main driving-pulley 9, driven by a belt from an electric motor &c. drives through worm gearing 11 and spur gearing 14 - - 19, a shaft carrying a cam 20, which through links 21, 23, pinion 24, fixed rack 26 and an upper rack 27 secured to the blank side, reciprocates this slide to carry the blanks past a series of rotary cutters 28. The cutter-spindles are driven from the main shaft through belt gearing 44, spur gearing 39, worm gears 36 and universal shafts 31. In order to -adjust the cutters to cut notches of various depths in the blanks, the cutter-spindles are each mounted in bearings supported by a pair of connected wedge-members 46, 47. The wedges are operated by hand-levers 50 moving over quadrant plates 52, the positions of the levers being determined by spring detents 51. Each lever is pivoted at 49 to a bearing 48 and connected by pin and slot to a wedge 47. A clutch 61 operated from a handle 62 is incorporated in the driving-train of the blank-carrier.
Patent GB-1271743-A (GB)
Title: Thermosetting resin of polyamide and copolymer of unsaturated dicarboxylic acid or derivative and an olefin or unsaturated ether or ester
IPC: C08L33/00
Filed: 1969-05-30
Abstract: 1,271,743. Coated steel. SCHOLVEN-CHEMIE A.G. 30 May, 1969 [5 June, 1968], No. 25997/69. Heading B2E. [Also in Division C3] Steel may be coated with a thermosetting synthetic resin composition which comprises 10-99% wt polyamide, and a copolymer of an ethylenically unsaturated dicarboxylic acid or derivative thereof and an olefin or ethylenically unsaturated ether or ester or mixture thereof. The polyamide is noncrystalline and has av. M.W. 5000. The dicarboxylic acid derivative may be an anhydride, partial ester, partial amide or mixture thereof. The copolymer has av. M.W. <5000 and has carboxyl gp content of 25-70 mole %. The polyamide and copolymer may be partially condensed together. The resin may be in an aqueous ammonia or aqueous amine medium. The polyamide may be soluble in solvents containing alcohol. Articles and coatings may be obtained by mixing together and then heating the polyamide and copolymer. The polyamide may be mixed, formed from straight-chained or branched, aliphatic, aromatic or alicyclic dicarboxylic acid, diamines and lactams; the NH hydrogen may be partially replaced by alkanol, e.g. methylol, or alkyl gps; exemplified are adipic acid, trimethyl adipic acid, azelaic acid, decanedicarboxylic acid, hexamethylene diamine, trimethyl hexamethylene diamine, 4, 4-diaminodicyclohexamethylmethane, 1-amino-3-aminomethyl-3, 5, 5 trimethylcyclohexane, known as isophorone-diamine, IPD; 1, 4-diaminocyclohexane dicarboxylic acid; and caprolactam. The copolymer is prepared by radical copolymerization of e.g. maleic, fumaric, itaconic, or citraconic acids or e.g. their semi-esters with C 1 -C 4  alcohols, with e.g. ethylene, propylene, isobutylene, styrene, α-methylstyrene, indene or acenaphthylene; vinyl chloride, acetate or propionate, acrylic or methacrylic ester; or methylvinyl ether or coumarone. The polyamide and copolymer may be mixed directly or in solution, and formed at up to 180‹C. The cross-linking reaction begins at 80‹C; the cross-linking temperature may be reduced by adding catalysts, e.g. sodium ethylate, phosphoric acid, or lead oxide. Also present may be fillers, e.g. kaolin flour pigments, antifoaming agents, flow-control agents, or organic solvents, e.g. methanol, ethanol, methyl ethyl ketone, toluene, or propylene glycol.
Patent GB-1112683-A (GB)
Title: Wheel setting mechanisms for number wheels, type wheels, or the like
Inventor: BALDWIN RICHARD EVEREST
IPC: G06M3/06
Filed: 1965-06-18
Abstract: 1,112,683. Selective printers. ENGLISH NUMBERING MACHINES Ltd. 14 June, 1966 [18 June, 1965], No. 26004/65. Heading B6F. A selective printer having a plurality of type wheels 1 mounted on a rotatable shaft 2 and each having a plurality of raised characters which between them define toothed spaces for engagement with teeth of index setting wheels 3 is provided with a non-circular shaft 4 having a pair of arcuate surfaces 5 which form bearing surfaces for the index setting wheels 3 staggered in alternately opposite radial directions and pressed resiliently against the surfaces 5 by pairs of oppositely facing fingers 9 engaging bearing surfaces 11 (Fig. 4) and depending from a pair of opposite frame members 7. Aligning for impression.-Type wheels are aligned for impression by pivotally mounted pawls 14 having a pair of lugs 13, 15 which engage in the toothed spaces of the respective type wheels 1 and index setting wheels.
Patent GB-1221018-A (GB)
Title: Improvements in or relating to breech mechanisms in automatic and semi-automatic guns
Inventor: MAILLARD BERNARD
IPC: F41A15/14
Filed: 1968-03-15
Abstract: 1,221,018. Automatic guns. BREVETS AERO MECANIQUES S.A. 15 March, 1968 [5 April, 1967; 30 June, 1967], No. 26167/69. Divided out of 1,221,013. Heading F3C. The subject-matter is as that in parent Specification 1,221,013 but the claims relate to a breech mechanism which is characterized in a lost-motion connection between the firing pin and the casing.
Patent GB-666873-A (GB)
Title: Manufacture of artificial resins from aldehydes and aromatic hydrocarbons
IPC: C08K3/38
Filed: 1948-10-07
Abstract: The melting point of a resin obtained by condensation of an unsubstituted or hydrocarbon substituted aromatic hydrocarbon with an aldehyde is increased by heating with an acid-reacting hardening catalyst at a temperature above 140 DEG  C., e.g. from 140 DEG  to 200 DEG  C., with subsequent stabilization of the resin by elimination of acidity.  Resins specified are the condensation products of formaldehyde and naphthalene, xylene, naphtha fractions and methyl naphthalenes.  Catalysts specified are sulphuric acid, phosphoric acid, ferric chloride, aluminium chloride, p-toluene sulphonic acid and p-toluene sulphochloride. Solvents such as toluene may be used.  The acidity may be removed by neutralization, e.g. with alkali and alkaline earth metal carbonates, hydroxides and oxides, such as Na2CO3, CaCO3 and CaO, gaseous ammonia, ammonium carbonate, and organic bases, e.g. pyridine and quinoline and their derivatives. In the case of volatile catalysts, e.g. p-toluene sulphonic acid, the acidity may be removed by passing steam into the molten hardened resin.  In example (1) a toluene solution of a naphthalene-formaldehyde resin is heated until free from water, p-toluene sulphonic acid is then added and the mixture heated, steam being finally admitted to remove the volatile catalyst. Further examples are given (2-5) showing how the acid concentration and/or time affects the degree of hardening and (6-8) showing comparatively how stabilization proceeds. Specification 633,923 is referred to.
Patent GB-906816-A (GB)
Title: Improvements in or relating to television channel switches
IPC: H03J1/14
Filed: 1961-07-19
Abstract: 906,816. Radio receiver switch tuning arrangements. PREH, W., and PREH, A., [trading as PREH ELEKTROFEINMECHANISCHE WERKE, J. PREH NACHFOLGER. July 19, 1961 [July 20, 1960], No. 26214/61. Class 40 (5). In a television channel switch wherein fine tuning on any one channel is effected by an adjustable condenser 4, a plurality of preset cam discs 8, corresponding to the number of switch positions is carried by the movable part of the switch so that in any set position of the switch, the associated cam co-operates with the tuning segment 5 of the condenser to effect the fine tuning appropriate to the selected channel. Each cam 8 may be adjusted through gearing 10, 16 by a rotatable spindle 21, Fig. 2, which when depressed in the direction of the arrow shown is moved laterally by the conical bearing surfaces 24, 25 to bring the gearing 10, 16 into driving engagement with the teeth 811 of the cam disc 8 corresponding to the selected channel whereby the disc may be adjusted. The cam discs of all the channels may be preset in this manner so that accurate fine tuning may be effected automatically when the channel switch is operated.
Patent GB-1423260-A (GB)
Title: Alkali metal percarbonates
IPC: C01B15/10
Filed: 1973-06-01
Abstract: 1423260 Alkali metal percarbonates DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 1 June 1973 [2 June 1972] 26226/73 Heading C1A Alkali metal percarbonates are made by spraying solid alkali metal carbonate with aqueous hydrogen peroxide at a temperature of 35-60 C., heat treating the carbonate formed at 30-60 C. for respectively 110 down to 10 mins. and then drying the percarbonate at 20-90 C. in air containing CO 2 , preferably at a concentration of 0À2 to 1% by volume. Sodium percarbonate is exemplified but potassium percarbonate is also specified.
Patent GB-430739-A (GB)
Title: Improvements in or relating to cathode ray tube and similar electron discharge tube arrangements
IPC: H01J29/70
Filed: 1933-09-22
Abstract: 430,739. Cathode-ray tubes. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Sept. 22, 1933, No. 26238. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 26, 1934]. [Class 39 (i)] A concentrated electron beam is deflected electrostatically or electro-magnetically, and a concentrating electrostatic or electromagnetic system is arranged between the deflecting members and the image-receiving surface. In one form, Fig. 4, a tube has a cathode 1, Wehnelt cylinder 2 and anode 3. A concentrating coil 6<a> is arranged between the screen 5 and the deflecting system 4, and a further concentrative coil 6b renders the beam parallel in the space between the deflecting plates. The coil 6b may be dispensed with. The coils should be spaced from the deflecting means by a distance not less than half the internal coil diameter. The tube may be hard or gas-filled.
Patent GB-1010937-A (GB)
Title: Improvements in or relating to ventilators
IPC: A62C3/04
Filed: 1963-07-02
Abstract: In a kitchen extractor ventilator having grease collecting surfaces and means for spraying these surfaces with steam or hot water (see Division F4) the occurrence of a fire in the ventilator operates thermal switches to turn on the sprays, shut off the ventilator fan and close a ventilator damper.  The fire extinguishing operation may also be initiated manually. Specification 1,010,938 is referred to.
Patent GB-353304-A (GB)
Title: Improvements in or relating to ignition magnetos
IPC: F02P1/00
Filed: 1930-09-04
Abstract: 353,304. Hasp fastenings. FABRICA ITALIANA MAGNETI MARELLI SOC. ANON., 22, Corso Venezia, Milan, Italy. Sept. 4, 1930, No. 26412. Convention date, Sept. 5, 1929. [Class 44.] A cover is connected to the body of a magneto by a fastener of the extensible type comprising two telescoping parts with an interposed spring, each part having at its free end a head for engagement with a seat provided in the corresponding element of the magneto. The body 1 of the magneto has a hole 2 formed with a spherical seat 3 and a slot 4. One element of the fastening comprises a stem 6 having a flange 7 at one end and a ball head 5 at the other. The second element consists of a sleeve 8 having an internal seat 9 at one end and a head 10 with projecting lugs 11 at the other. A spring 12 is located between the flanges 7, 9. The stem 6 is inserted in the sleeve from the lower end which is subsequently closed and the head 5 is caused to engage in its seat 3 by passing a neck 5<1> connecting the head 5 and stem 6 through the slot 4. The transverse lugs 11 engage a seat on the cover 13 and to remove the cover, the fastening is extended to detach the end 10 and turned through 90‹ whereupon the spring retains the sleeve 8 against the sides of the part 1.
Patent GB-229229-A (GB)
Title: Improvements in socks
IPC: A41B11/12
Filed: 1924-11-06
Abstract: 229,229. Schonfeld, P. L. Nov. 6, 1924. Socks.-A sock has a long leg reaching above the calf and is provided with an elastic upper edge b consisting of a rubber ring with air holes d in it.
Patent GB-487817-A (GB)
Title: Improvements in or relating to projection arc lamps
IPC: H05B31/00
Filed: 1937-10-01
Abstract: 487,817. Arc lamps. ZEISS IKON AKT.-GES. Oct. 1, 1937, No. 26654. Convention date, Jan. 22. [Class 39 (i)] A directing magnet 1 for an arc lamp with the electrodes collinear in the axis of the reflector is an unwound magnet of horseshoe or like shape energized by the arc currents and is astride of the positive electrode near the burning end, the legs 2, 3 being bent towards the arc as shown so that their tips are below the arc, while the body of the magnet does not obscure the side view of the arc. The magnet may be adjustable horizontally and vertically.
Patent GB-786636-A (GB)
Title: Improvements in or relating to counterbalanced supporting arms
Inventor: LAUTERBACH NORMAN EDWARD
IPC: F16M11/04
Filed: 1954-09-14
Abstract: 786,636. Wall and like brackets. RITTER CO., Inc. Sept. 14, 1954, No. 26654/54. Class 52(5) A counterbalanced support comprises a support bracket, a swinging articulated arm connected to the bracket and to the object to be supported, a device counterbalancing the weight of the object during movement from its uppermost position to a lowered position and connected to parts of the articulated arm, and independent resilient means counterbalancing most of the weight of the object during movement from the lowered to the lowermost position. As shown, an X-ray tube 45 is mounted on a wall &c. by a support bracket 10 and parallel motion linkages 17, 26 and 35, movement of the linkages from the uppermost position (Fig. 1) to a horizontal position being counterbalanced by the resistance of springs, in a pair of cylinders 47, to the withdrawal of -plunger rods 55 from the cylinders, the rods and cylinders being pivoted at 41 and 54 to the linkage. Below the horizontal position of the linkages downward movement of the X-ray tube is counterbalanced by the engagement of a projection 74 on a link 36 with a cylinder 71 which is pressed into a bore 63 in a plate 34 of the linkage, against the action of a coil spring 73. Inward movement of the cylinder 71 is stopped by a rubber cushion 70.
Patent GB-389863-A (GB)
Title: Improvements in or relating to internal combustion engines of the liquid fuel injection compression ignition type
IPC: F02B19/00
Filed: 1931-09-25
Abstract: 389,863. Oil engines. RICARDO, H. R., 21, Suffolk Street, Pall Mall, London. Sept. 25, 1931, No. 26828. [Classes 7 (ii) and 7 (iii).] In an internal-combustion engine of the compression-ignition type, inlet and exhaust ports B, C, Fig. 1, in a cylinder A are closed by sleeve valves E within which a piston F approaches closely to a water-cooled pluglike cylinder head D containing a watercooled pocket D<2>. A plug G, formed and arranged to attain and maintain a high temperature during the operation of the engine, closes the mouth of the pocket and provides access thereto through a restricted passage G<1> so disposed that, at the end of the compression stroke, the charge, which is wholly in the combustion chamber, will be in a highly heated and rotatory condition, the circumferential portion thereof sweeping across the inner end of the passage G<1> and the charge receiving from an injector J a jet of fuel directed towards a part of the hot surface traversed by the circumferential portion thereof as it approaches the end of the passage. The plug G fits loosely into the lower cylindrical portion of the pocket D<2> and has its upper end recessed hemispherically to provide, with the top of the pocket D<2> a spherical or oval combustion chamber into which the passage G<1> enters tangentially. The pocket D<2>, which is coaxial with the cylinder bore is of circular cross section in planes at right angles to the cylinder axis and the combustion chamber has a like cross section in planes parallel to the cylinder axis and the axis of the passage G<1>. The upper part of the pocket D<2> may have a heat-insulating lining. As shown in Fig. 1, two sleeves E having reciprocatory motion are employed, but a single sleeve having a combined reciprocatory and oscillatory motion may be used. The oscillatory motion occurs mainly during the induction stroke and co-operates with the shaped ends of an induction belt L<3>, Fig. 3, and a guide-plate L<5> at one side of a central inlet port L<1>, to direct the air into the cylinder through the ports L<1> with an initial anticlockwise rotation followed by clockwise rotation when the ports are fully uncovered. Specifications 371,025 and 384,340 are referred to.
Patent GB-1275075-A (GB)
Title: Disc brake and an anti-squeal brake shoe therefor
IPC: F16D65/00
Filed: 1969-05-28
Abstract: 1275075 Disc brake pad SUMITOMO ELECTRIC INDUSTRIES Ltd 28 May 1969 [6 Sept 1968] 26931/69 Heading F2E A disc brake pad comprises a backing plate 3 and a friction lining 2, the mass of the pad being unsymmetrical such that the centre of gravity of the pad is spaced from the centre of the pad. In the construction shown the mass is made unsymmetrical by the provision of a metal strip 4. A metal piece may be connected to an outside corner of the backing plate (Fig. 3, not shown) or the friction lining has a piece cut from an outside corner (Fig. 4, not shown). In the latter case unsymmetrical apertures may be provided in the backing plate for securing the friction lining and for further effecting unsymmetrical mass. The thickness of the friction lining may be varied.
Patent GB-481138-A (GB)
Title: Improvements in or relating to the recording of sound or like vibrations
IPC: G11B7/24
Filed: 1936-10-07
Abstract: 481,138. Recording sound. COX, W. P. H. Oct. 7, 1936, No. 27169. Convention date, Aug. 28. [Class 40 (ii)] A method of recording sound or like vibrations consists in submitting a pressure-sensitive photographic layer to the action of a recording member, in the form of a flattened stylus, movable in a direction perpendicular to the surface of said layer by said vibrations and serving to apply pressure to the film in magnitude depending upon the intensity of the vibrations, the stylus having an edge which, when viewed in the direction of movement of the film, is convex to said layer, Fig. 3 (not shown) or presents a V-edge to said layer, Fig. 4 (not shown), so as to produce on development a combined variable-width and variable-density record as shown in the Figure. The variations in pressure between the recording member and the pressure-sensitive layer may be brought about in various ways. Thus, the recording member may either be attached to some kind of microphonic member or soundrecording system or the film band may be pressed against the recording member by such a system. In the latter case, the pressure may be exerted by a gaseous or liquid medium which transmits the vibrations. Alternatively, the film band itself may be employed directly as the microphone membrane. Specification 349,469 is referred to.