baber/WOPTO huggingface dataset:
Patent GB-244698-A (GB)
Title: Improvements in or relating to lawn-mowers
IPC: A01D75/30
Filed: 1925-05-14
Abstract: 244,698. Martin, P. Dec. 20, 1924, [Convention date]. Addition to 237,561, [Class 6 (ii), Gardening &c. appliances]. Clutches, ratchet. - The lawn mower described in the parent Specification is provided with clutches which drive the cutter differentially and with means for putting the clutches out of operation. In a hub A on each wheel A<1> is a circular groove having inclines at the bottom with which are adapted to engage dogs on a sleeve B sliding on feathers on the axle B<1>. The sleeve B is constantly pressed inwards by a spring c, but may be drawn outwards by rotating a lever E which engages inclines b on a casing D, and is secured on the sleeve B by a bolt F and spring G.
Patent GB-477886-A (GB)
Title: Improvements in or relating to automobile lamps
IPC: F21S8/10
Filed: 1936-05-04
Abstract: 477,886. Vehicle lamps. PINTSCH AKT.-GES., J. May 4, 1936, No. 12604. Convention date, May 28, 1935. [Classes 75 (ii), 75 (iii), and 75 (iv)] A vehicle lamp comprises a condenser system arranged near the light source 1, and an objective lens 7, or two part lenses 17, 18, of large focal length to project an image or two images of the emergent face of the condenser system outside the lamp, the condenser system consisting of a plurality of separate curved lenses or lens parts 3, 4, 5, which are each of short focal length and each receive a different part of the light from the light source and have their centres spaced one from another. The centres of the lenses or lens parts are the geometrical centres of the actual complete lenses or of those hypothetical lenses of which the lens parts are sections. The lens 3 and the lens parts 4, 5 are of successively increasing focal lengths and diameters. The arrangement is such that the beam projected onto the road becomes narrower and more intense as the distance in front of the lamp increases. A mirror 6 directs light onto the lens parts 4, 5, and a recuperating reflector 2 is provided. A yellow screen 8, adjustable by a lever 9, may be brought in front of the lens 3. Associated with the lens 3, there may be lenses 31, 32, totally reflecting prisms 10, and reflectors 21, 22 with their centres one on each side of the light source, as shown in Fig. 2. Dark spots produced by such a condenser system may be obviated by using two such systems arranged so that the beams from them overlap or by replacing the single lens 7 by two lens parts 17, 18. The objective lens may be carried at the side of the radiator or in the bonnet of a motor vehicle, and the condenser system may be fixed to the dashboard or carried by a curved base plate slidable over a similarly curved surface on the dashboard concentric with the objective lens. The condenser system may alternatively be arranged below the objective lens in the same casing and an adjustable mirror may direct light from the condensing system onto the objective lens. A coloured screen is movable in front of the objective lens or lenses.
Patent GB-1434860-A (GB)
Title: Electrical cable connector
IPC: H01R12/67
Filed: 1974-03-21
Abstract: 1434860 Connector INTERNATIONAL BUSINESS MACHINES CORP 21 March 1974 [30 April 1973] 12732/74 Heading H2E To connect conductors 10, 11, 12 near the end of a cable to contact pins 17, 18, flat cable 13 is forced into channel 19 in resilient plastics connector housing by pressure on plastics cap 30, resilient catches 35 engaging recesses 37 on full insertion. Movement of cap 30 forces tapered tops of slotted metal insulationstrippers 22, 23, 24 through cable insulator 28, the slots 25, 26, 27 being of width appropriate to engage respective conductors. Insulationstrippers 25, 27 are connected beneath channel 19 to ground pin 17 and stripper 23 to pin 18. If there are only two conductors in cable, stripper 23 is removed and 25, 27 are connected to pins 17, 18 respectively (Figs. 9, 10, not shown). Pins 17, 18 energe through quadrilateral blocks 15, 16 offset both vertically and horizontally, block 15 having transverse groove 63. To stack for simultaneous plugging a plurality of connectors, resilient plastics body 60 is penetrated by pairs of apertures 61, each pair fitting a block pair 15, 16. The roof of each upper cavity 61 carries retention rib 62 to engage groove 63 on insertion of connector. Other patterns of offset and block shape, with corresponding pairs of cavities 61 in body 60 are allowed.
Patent GB-703936-A (GB)
Title: Improvements in or relating to the manufacture of cathode ray tube envelopes
IPC: H01J29/86
Filed: 1951-05-30
Abstract: 703,936. Glass-to-metal seals. GENERAL ELECTRIC CO., Ltd., and LEEDS, R. E. May 22, 1952 [May 30, 1951], No. 12795/52. Class 36 [Also in Group XXIII] Those portions of an iron or steel bulb of a cathode ray tube which are to be sealed to glass end members are provided with an adherent coating of chromium which may be applied directly to the iron or steel or over a thin intermediate film of nickel or copper. The chromium coating may extend over parts of the surfaces of the bulb which are adjacent to the portions which are to be sealed, or over the whole of the internal and external surfaces of the bulb. The glass end members preferably have a coefficient of thermal expansion similar to that of iron or steel. Specification 691,870, [Group XXIII], is referred to.
Patent GB-355657-A (GB)
Title: Manufacture of anthraquinone derivatives
IPC: C09B1/28
Filed: 1930-04-25
Abstract: Aminoanthraquinones; cellulose esters, dyeing.-Hydroxy groups are replaced by amino, alkylamino or aralkylamino groups by heating with ammonia or a primary aliphatic or araliphatic amine, in presence of water, a leuco derivative of an o-oxyanthraquinone- or a -oxyaminoanthraquinone-sulphonic acid in which a sulpho group is in d -position to an a -oxy group; the said sulpho group being eliminated by the reaction.  Instead of the leuco derivative, the corresponding anthraquinone may be employed, the reduction of the leuco derivative and condensation of the latter being combined in one operation.  If desired, the products may be oxidized.  In examples (1) sodium-1 : 5 - dioxy - 4 : 8 - diaminoanthraquinone - 2 : 6 - disulphonate is heated with sodium hydrosulphite and aqueous ammonia solution; (2) sodium 1 : 8-dioxy-4 : 5-diaminoanthraquinone-2 : 7-disulphonate is heated with sodium hydrosulphite, water and methylamine; (3) sodium 1 : 5-dioxy-4 : 8-diaminoanthraquinone-2 : 6-disulphonate is heated with sodium hydrosulphite, water and methylamine, the product is probably 1 : 5-diamino-4-oxy-8-methylaminoanthraquinone; instead of methylamine, a homologue or substitution product thereof, such as b -oxyethylamine, ethylenediamine or benzylamine may be used, and the disulphonic acid may be replaced by mixtures of disulphonic acids or by monosulphonic acids; (4) 1 : 4-dioxyanthraquinone-2-sulphonic acid is heated with sodium hydrosulphite and aqueous methylamine solution, 1 : 4 - dimethyldiaminoanthraquinone is obtained, and (5) the technical mixture of leuco 1 : 5 - dioxy-4 : 8-diaminoanthraquinone-2-sulphonic acid and leuco 1 : 8-dioxy-4 : 5-diaminoanthraquinone-2-sulphonic acid (made by reduction with zinc dust or hydrosulphite in aqueous caustic soda solution, followed by precipitation with hydrochloric acid) is heated with methylamine and water.  The products dye cellulose acetate silk in blue shades when applied in suitable suspensions, for example in sulphite cellulose lye.  Specifications 15355/08, [Class 2, Acids and salts, Organic &c.], and 263,579, [Class 2 (iii), Dyes &c.], are referred to.
Patent GB-130765-A (GB)
Title: Improvements in and relating to Resilient Tyres.
Inventor: BABEL HENRY CLAY
IPC: B60C7/20
Filed: 1918-08-07
Abstract: 130,765. Babel, H. C. Aug. 7, 1918. Metallic spring bodies and cores. - A cushion tyre 16, having a helical-spring core 22, is supported on a metal band 24 which is limited as to outward radial movement' by lugs 38 secured within the channel rim. The band 24 is formed with alternating thick and thin portions, and at the latter places leaf-springs 26 are secured to the band and the rim-bed 13. In a modification, the band 24 is formed in sections.
Patent GB-703937-A (GB)
Title: A device for translating a graphic record of a variable quantity in the form of a curve into a record in accordance with the constant-quantity measuring principle
IPC: G06K11/00
Filed: 1951-05-31
Abstract: 703,937. Integrating apparatus ; recording apparatus. LICENTIA PATENT-VERWALTUNGS-GES. May 31, 1951 [June 10, 1950; Nov. 4, 1950], No. 12888/51. Class 106 (4). [Also in Group XXXVIII} In a device for translating a curve 2 on a chart 1, Fig. 1, into equal valued markings on another chart 29, both charts are fed at constant speed and a rotary member whose speed is made dependent on the distance y of the curve from a zero line completes an electric circuit to energize marking mechanism after a certain number of revolutions. The distance between successive markings thus corresponds to the average values of y. In a modification, Fig. 2, the distance between successive markings corresponds to the ratio of average values y<SP>0</SP>, y, for two curves on charts 50, 51. The charts 1, 29, Fig. 1, are driven by toothed wheels 3, 31 from a clock or synchronous motor 6 which also drives sun wheels 14, 15 of a differential gearing through conical pulleys 8, 10 and gears 16 respectively. The pulleys are connected by a belt 11 displaced by a rod 12 carrying a feeler 13 which is moved manually or automatically over the curve 2. If y differs from zero the transmission ratio between 8 and 10 will be such that wheel 14 will rotate faster than 15, and planet wheel 18 will rotate about shaft 9 (at a speed proportional to y) together with carrier gear 19 which meshes with gear 20 on shaft 21 which rotates a counter 22 (which thus registers the time integral of y) and contactclosing cam 23. The contacts 24 complete the circuit of a magnet 25 which operates a printing or perforating device 27. Both charts 50, 51, Fig. 2, are driven at constant speed, and the curves 52, 53 are followed by feeler rods 63, 64 which vary resistances 65, 66 in the armature circuits of D.C. motors 67, 68 the speed of which is thereby made proportional to yo, yl respectively. The rotation of the motors causes periodic closure of contacts 69, 70 to energize magnets 71, 79 which respectively actuate pawl-and-ratchet mechanism 72, 74 to step on chart 77 and a printing or perforating device 80 for marking the chart. The chart curves may relate to the measurement of electricity, water or coal consumption, traffic counting, or mass production of articles.
Patent GB-191668-A (GB)
Title: Improvements in or relating to roller mills
IPC: B02C4/42
Filed: 1922-05-08
Abstract: 191,668. Olver, W. H., and Fry, G. A. May 8, 1922. Roller mills.-Relates to roller mills for grinding paints &c., and particularly to triple roller mills in which a pressure roller and two adjustable grinding-rollers, one on each side of the pressure roller , are arranged with their axes substantially in the same plane and parallel to one another. The grinding-rollers l, n are driven by separate chains s, t from a fixed driving-shaft so arranged that the adjusting movement of the grinding-roller towards the pressure roller m to take up wear has the effect, up to a certain point in the movement, of slackening the chain driving the grinding-roller, but after passing the said point a further adjusting movement of the roller in the same direction has the effect of again tightening the driving-chain, thus providing for the full range of adjustment of the grinding-rollers so that they can be completely worn out without shortening the chain and without requiring any tension devices for the chains. The centres of the wheels e, q are placed so that the angles EFM, GHM, Fig. 1, become right-angles when the rollers are half worn out. Fig. 4 shows the chain wheels e, g fixed to spur wheels c, d which gear with a wheel b on the lay shaft a.
Patent GB-760156-A (GB)
Title: Tunnel kiln
IPC: F27B9/30
Filed: 1954-05-06
Abstract: 760,156. Tunnel kilns. FROSTERUS, E. G. May 6, 1954 [May 6, 1953], No. 13238/54. Class 51 (2). In a tunnel kiln comprising preheating, firing and cooling zones, heated by solid, liquid or gaseous fuel introduced through poke holes in the firing zone roof, the material to be fired being stacked on trucks travelling through the kiln, roof openings 27 near the beginning of the cooling zone are connected by one or more ducts 29 to roof openings 28 nearer the tunnel outlet, and an injector 30 in the duct 29 is connected with the delivery side of a fan 31. Between the openings 28 and the tunnel outlet the width and height of the tunnel is appreciably enlarged and roof baffles 34 and side wall baffles 35 divide this tunnel space into pockets of one to three truck lengths. The clearances between the tunnel walls and roof and the work stacked on the trucks in this section is 0.3-1.0 metre. In the cooling zone, the wall blocks 65, 66 and 67 (Fig. 7), are laid as headers in offset relationship to cause eddying of the cooling air. In the preheating zone of the tunnel, damper-controlled ducts 4 lead gases off to a chamber 5 from which a fan 6 delivers them, partly to a chimney 7, and partly to a roof chamber 10 from which they are returned through ports 11 into the tunnel. In the firing zone, a fan 26 associated with injectors 25 circulates flue gases from roof ducts 23 and from side wall ducts 24 fed from ports 21 to ports 22 in the side walls. The fans 6, 26 and 31 may all be associated with a valve giving intermittent impulses to the gases. The trucks 68 are moved into the kiln by pivoted shoes on a hydraulically-operated carriage reciprocated between the rails.
Patent GB-593259-A (GB)
Title: Improvements in scaffolding clamps or couplers
IPC: E04G7/18
Filed: 1945-05-28
Abstract: 593,259. Scaffold clamps. SCAFFOLDING (GREAT BRITAIN), Ltd., and RICHARDS, L. S. May 28, 1945, No. 13294. [Class 20(ii)] A scaffold clamp of the type comprising a U-shaped member 10 adapted to embrace a scaffold tube and having its edges recessed at 103, 104 to receive a second tube transversely to the first and a clamping plate 11, pivoted at 105 to a limb 101 of the U-member, having a clamping screw 12 which bears against the second tube when the plate is swung into position across the limbs of the U, has the plate 11 provided with means, such as a lug 112 to engage the outer face of the other limb 102 of the U-member, to prevent lateral displacement of the limbs. In a modification, the plate 11 may be apertured to engage over a peg on the limb 102. Play is provided at the pivot 105 to allow the face end of the plate to be lifted slightly. The plate is preferably of channel section. Specification 578,386 is referred to.
Patent GB-1473042-A (GB)
Title: Device for automatic analysis
IPC: G01N35/02
Filed: 1975-04-01
Abstract: 1473042 Reciprocating pumps COMMISSARIAT A L'ENERGIE ATOMIQUE 1 April 1975 [1 April 1974] 13300/75 Heading F1A [Also in Divisions B1, F2 and G1] A device for transferring reagent from a container 65 to analysis test-tubes comprises a piston 67 reciprocatable in a chamber 68 by application of excess pneumatic pressure at one or the other side of part 69, the upper end of chamber 68 communicating with the barrel of a pneumatically actuated slide valve 74 having recess 78 for passage of reagent, ring seals 77 providing sealing tightness for forming compartments along the bore of the slide valve, the movement of the sliding member of the valve and piston 67, 69 being controlled by means of a pneumatic programming mechanism, and a duct 66 providing for passage of reagent from the container 65 to chamber 68.
Patent GB-133058-A (GB)
IPC: B65D51/16
Abstract: 133,058. Bott, A. June 6, 1918, [Convention date]. Vacuum closures.-Relates to stoppers held seated on preserve jars &c. by atmospheric pressure and having a small opening provided with a closure which is removed when it is desired to destroy the vacuum. The closure pad is of soft material such as rubber or the like, and is provided with a stiffening-insertion of rigid material such as metal, glass, or the like. Fig. 3 shows a flat metal ring a. embedded in a rubber pad b, and a tin-plate covering c on the top of the pad to prevent the closing- clamp from adhering to it during the sterilizing process. A hole d in the plate c allows the pad to be perforated by a pin for the purpose of removal. A circular recess c may be formed in the underside of the pad, and this recess may be widened upwardly as shown. Fig. 4 shows a pad with a stiffening-ring f of T-section, the central web projecting above the top of the pad for the clamp to bear upon. Or a ring stamped from sheet metal and having a branch projecting above the top of the pad may be used.
Patent GB-130485-A (GB)
Title: Improvements in Apparatus for Measuring the Average Maximum Demand in Kilovolt Amperes from an Alternating Current Supply.
Inventor: JEPSON ALBERT EDWARD
IPC: G01R11/56
Filed: 1918-08-16
Abstract: 130,485. Jepson, A. E., and Howarth, O. Aug. 16, 1918. Multiple-indication apparatus.-A quantity approximating to the maximum value of the kilovoltamperes averaged over definite periods of time is obtained by measuring, mechanically or electrically, the maximum hypotenuse of a series of rightangles triangles, the other two sides of which are respectively proportional to the energy and the time-integral of the wattless component of the kilovolt-amperes consumed in the predetermined period of time. In the form shown in Fig. 1, slides A, A' are moved along arms B, B' at right-angles by beads a<2>, a<3>, on cords a, a<1> connected respectively for the predetermined intervals of time to meters X, Y, registering respectively energy and the time-integral of the wattless component of the kilovoltamperes. A rod C is pivoted to the slide A and slides, with friction, through a guide c pivoted to the slide A<1>. A pawl c<1> engages teeth on the rod C. Spring-driven pulleys D return the cords a, a<1> when the mechanisms of the meters X, Y, are released, thus returning the beads a<2>, a' to zero. The " average power factor " may be read by a pointer F attached to the slide A cooperating with a scale attached to the bar C. The bar C may be replaced by .a cord fixed to one slide and slipping through a clip attached to the other. The indication may be on a circular scale by cords passing ove ra differential pulley. In a modification, the arms B, B<1> are arcs of circles with their chords at right-angles. A cord is attached to the slide A', passes over a pulley on the slide A, and thence round a pulley of which the axis is at the centre of the circle of which one of the bars forms part. This pulley actuates a non-return pointer. In a second modification, the meters X, Y actuate two racks, one carried by the other at right-angles thereto. The combined motion of the racks is transmitted bv a cord to a non-return pointer. In a further modification, Fig. 4, two resistances or choking coils S, S' are connected to two constant-voltage alternating-current supplied in quadrature. Sliders s, s<1> are moved in contact with the resistances S, S<1> by meters X, Y, Fig. 1, and the pressure between them is measured on a voltmeter V with a non-return pointer. The resistances or inductances S, S<1> may be circular and the sliders s, s<1> replaced by contact arms on spindles driven by the meters X, Y.
Patent GB-195548-A (GB)
Title: Improvements in nailing machines
IPC: B27F7/02
Filed: 1922-05-11
Abstract: 195,548. Haddan, R., (P. B. Yates Machine Co., Ltd.). May 11, 1922. Inserting wire and like metal nails.- In a nailing-machine, divided nail chucks are provided with detachable U-shaped spring-clips 34, Fig. 8, so arranged that any undividual chuck can be opened for the removal of bent nails without stopping the machine. A chuck consists of parts 5, 6, Fig. 7. connected by spring pins 21. Nails are delivered to shoots 36 and are driven by hammers 13. The nails are held, previous to being driven, by pivoted side-pieces 31, Fig. 5, which are held in position by the springs 34 until forced apart by the hammer. In case of clogging by a bent nail, the spring 34 is detached by hand and the chuck opened without interference with the other chucks on either side. The chucks are adjustably mounted on bars 39, Fig. 1, above a work table 3. The hammers 13 are reciprocated by crossheads 16 reciprocated by rods 18.
Patent GB-1507783-A (GB)
Title: Electrophotographic copying machine
IPC: G03B27/54
Filed: 1976-04-01
Abstract: 1507783 Conveying sheet material KIP KK 1 April 1976 [1 April 1975] 13342/76 Heading B8A [Also in Division G2] An electrophotographic projection printer (for copying long originals which are transparent or opaque) has (a) first and second original-carrying means which move at the same speed and have respective clip and pneumatic fastening means for an original and (b) alternative first and second light sources for reflecting light from or transmitting light through an original. As shown, an original is fastened to clipping means 50 which is opened against a spring bias by the action of a solenoid and is carried between a pair of endless belts 64 over a pair of apertured sleeves 80 and 82 which rotate over stationary hollow cylinders 86 which have axially extending slots 90 and are internally evacuated, the peripheral speed of the sleeves and the speed of the belts being the same. Below the belts and between the sleeves, a glass plate 32 and a light source 46 are situated and above the belts a pair of light sources 38 and an exposure slit 42 are situated. By means of sensing means for the leading and trailing edge of the original, the belts may be temporarily stopped until the trailing edge has passed the exposure slit. In a modification (Fig. 4, not shown), the original is passed through the nip formed between sleeve 80 and a plurality of resilient rollers 124, which are raised by cam action to allow clip means 50 to pass over sleeve 80.
Patent GB-316959-A (GB)
Title: Centrifugal emulsifier or homogeniser
IPC: A01J11/16
Filed: 1928-05-07
Abstract: 316,959. Wait, E. G. May 7, 1928. Mixing apparatus.-A centrifugal emulsifying apparatus has one or more rotary bowls or discs to the centre of which the materials are supplied; each bowl is open to the atmosphere and so shaped that the resistance of the materials to radial flow increases as they flow outwards. In one form of bowl shown the central boss has' a surface formed by the rotation of a semi-parabola BA round a vertical axis, and the main surface of the bowl is formed by the rotation of the semi-parabola CB about the same axis. In a modification the rim of the bowl is turned inwards to form a lip to retain any foreign solid matter in the materials under treatment. A number of bowls may be arranged coaxially with their rims in the same or different horizontal planes, and a separate constituent may be supplied to each bowl, the actual mixing taking place in the atmosphere after the materials have left the bowls.
Patent GB-1125063-A (GB)
Title: Improvements in or relating to gas discharge lamps
IPC: H01J61/18
Filed: 1967-03-22
Abstract: 1,125,063. Metal vapour lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRTES Ltd. 22 March, 1967 [25 March, 1966], No. 13387/67. Heading H1D. A H.P. discharge lamp comprises a closed discharge vessel containing a rare gas, Hg, Tl, In, Na and I as described in Specification 1,008,339, except that the quantity of Tl is 3-10% by weight of Hg, plus a quantity of Li greater than that which would evaporate during normal operation, the vessel operating at above 600‹ C.