baber/WOPTO huggingface dataset:
Patent GB-183508-A (GB)
Title: Improvements relating to furnaces
IPC: F23L1/02
Filed: 1921-02-24
Abstract: 183,508. Reid, J. Feb. 24, 1921. Air, supplying; fire-bars and grates; furnace fronts; baffles; ash-pans; fire-bridges.-Longitudinal partitions provided with upwardly and rearwardly inclined ribs are arranged immediately beneath a furnace grate to form longitudinal air passages open at the bottom and covered at the top with shallow fire-bars. As shown in Figs. 1 and 2, the partitions may be constituted by deep fire-bars l having ribs l<1> and a strengthening flange l<2> at the bottom. These bars are preferably deepest at their forward ends and may be cast integrally with lateral shallow bars. The main grate is below the level of the firing-opening f and is provided at the front with inclined bars i as described in Specification 182,498. Air from the hollow furnace front is directed by a plate p between the partitions and through the inclined grate bars i. Air entering the ash-pit is directed at the rear of the ash-pit upwardly towards the grate by a curved plate q attached to the ash-pan or forming part of the bridge. In the modification shown in Fig. 5, partitions l<x> having ribs l<1> are arranged beneath the ordinary grate bars l to form passages opening at the front into a box or chamber n. Steam or air jets may be employed to increase the flow of air to the passages between the partitions.
Patent GB-104954-A (GB)
Title: Improvements in or relating to Artificial Arms.
Inventor: ARNOLD JAMES ERNEST
IPC: A61F2/58
Filed: 1916-05-03
Abstract: 104,954. Arnold, J. E. May 3, 1916. Limbs, artificial.-An artificial hand has flexible members 11, 12, Fig. 5, passing above and below the pivots of the joints for opening and closing the hand. The members for the various fingers may be collected into two groups, one, when tensioned, serving to open the hand when the other is relaxed, and the other to close the hand when the first is relaxed. The thumb is provided with a helical spring which returns it to the position shown when freed.
Patent GB-996369-A (GB)
Title: Improvements relating to semi-conductor diodes
IPC: H01L23/04
Filed: 1963-02-15
Abstract: 996,369. Semi-conductor devices. INTERMETALL GESELLSCHAFT FUR METALLURGIE UND ELEKTRONIC m.b.H. Feb. 15, 1963 [March 15, 1962], No. 6324/63. Heading H1K. A method of manufacturing a semi-conductor diode comprises the steps of cleaning a tubular glass casing 1 having a feedwire 2 fused into one end thereof, placing a guide member (not shown) on top of a (Ag) support plate 6 located on the wire 2, introducing a semi-conductor body 7 through the guide on to the surface of plate 6, removing the guide and introducing a second feedwire 4 having a U-shaped end piece 5 (Pt, W alloy) and a fusible glass bead 3 thereon into the casing and holding end-piece 5 in contact with body 7 under pressure while bead 3 is fused to the rim of the tube. The lead-glass casing is cleaned by being heated in a hydrogen atmosphere whereby oxides, especially those on wire 2, are removed and the casing is blackened thereby removing the necessity for painting the device with an opaque lacquer after the assembly is completed. The surfaces of plate 6, body 7 and endpiece 5 may be roughened to a depth of 0À5 to 3 Á in order to improve the mechanical bonding of the elements of the diode. Instead of a wire and separate support plate 6, a massive metal cylinder which projects into the casing may be fused into the lower end of the casing (Fig. 2, not shown), this cylinder then acting as one feed wire of the diode and as a heat sink.
Patent GB-664768-A (GB)
Title: Improvements relating to thermionic valve oscillators
Inventor: CUTTS FREDERICK WILLIAM
IPC: H03K3/08
Filed: 1949-03-09
Abstract: 664,768. Pulse generating circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Jan. 13, 1950 [March 9, 1949], No. 6366/49. Class 40 (vi). In a pulse generator as described in Specification 540,941, which comprises a reciprocally coupled pair of valves, one of which has a frequency determining circuit in its output, the steepness of the wavefronts of the generated pulse is increased by a resistor connected in series with the frequency determining circuit which causes the associated valve to undergo alternate rapid transitions from a conducting to a non-conducting state. The Figure shows a pulse generator comprising reciprocally-coupled valves 1, 2 in which the pulse repetition frequency is determined by the tuned circuit 3 and in which the resistor 10 ensures rapid changes between the conducting and non-conducting states in valve 1 so that the output pulse has steep leading and trailing edges.
Patent GB-144397-A (GB)
Title: Improvements in steam turbine installations
IPC: F01D1/02
Filed: 1919-03-14
Abstract: 144,397. Spiess, P. March 14, 1919. Motor power plant.-An auxiliary turbine 5 is put in parallel with the low-pressure stage of a main turbine 1 when the load is great. The valve 11 controlling the connexion is opened to connect the two turbines bv the pipes 7, 8 when the pressure between the stages is sufficient, acting upon a piston 10, to overcome a spring 13. In the example shown, the valve 11 opens a connexion 16 to the main steam pipe 17 when the connexion 7, 8 is closed. The auxiliary turbine may drive a circulating pump 6 for the condenser plant or may drive an independent electric generator.
Patent GB-247408-A (GB)
Title: Improvements in connection with clips for labels and the like
IPC: B61D49/00
Filed: 1925-03-10
Abstract: 247,408. Parkes, S. R. March 10, 1925. Clips, pivoted-jaw, for holding labels to railway wagons, of the type described in Specification 5775/11, have a portion of the frame cranked so that a bulky invoice or the like can be gripped together with the label. The frame A is pressed to the side of the wagon by a spring s', s<2> in a housing B and is cranked as at a<2> to permit gripping of a bulky article.
Patent GB-335507-A (GB)
Title: Improvements in or relating to thermionic oscillation generators
IPC: H03B5/10
Filed: 1930-02-28
Abstract: 335,507. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Roberts, W. van B.). March 30, 1929, [Convention date]. Thermionic generators. - An oscillator comprises a pair of triodes 1, 2, of similar characteristics, a reaction coil T in the plate circuit of triode 1 and a reversed reaction coil Tr in the plate circuit of triode 2 being coupled to a common resonant circuit LC in the input circuits, the operating portion of the characteristic of triode 2 having greater curvature than that of triode 1. The grids of the triodes 1, 2, are respectively biased by batteries " C," " C1," or a leaky condenser may be used instead of battery " C." The coils T, Tr are so designed that at zero amplitude of oscillation the effect of coil Tr is less than that of T, but the reversed coil Tr becomes proportionately more effective than T with increasing amplitude, thus decreasing the feedback-effect. Two or more frequencies may be generated by the same valves using appropriate resonant systems, without the tendency of the oscillations of one frequency to build up and reduce the feedback at other frequencies owing to the balancing and limiting effect obtained by the arrangement.
Patent GB-136417-A (GB)
Title: An Improved Cover or Cap for Cans, Drums and the like.
Inventor: SHARP ROBERT FRANK
IPC: B01F15/00
Filed: 1919-03-18
Abstract: 136,417. Sharp, R. F., and Gardiner, A. March 18, 1919. Stationary batch-mixers with rotary stirrers.- A closing-device for a can, drum, &c. and designed for use with the collapsible mixer or agitator d'escribed in Specification 124,386, comprises a cover through which passes the spindle of the mixing or agitating device and a pair of pins or bolts slidably mounted in the cover, members connected to the ends of the pins being adapted to grip the inside of the vessel. As shown, the cover a carries a bridge-piece c with a screw d engaging a cross-bar e connected to two pins or bolts f which pass through openings in the cover and are connected at their lower endls to short arms i pivoted to brackets h on a part g fixed to the underside of the cover. When the pins f are moved upwards by operating the screw d, the arms i are caused to grip the inside of the vessel below the neck x. An annular washer b in a groove on the underside of the cover rests on the' top edge of the vessel, and one bevel-wheel of the driving-gear k and the spindle l of the mixing-device are fitted to the cover. According to the Provisional Specification, the pins have bent ur cranked ends which, when turned outwardly, lock the cover, and when turned inwardly release it.
Patent GB-796641-A (GB)
Title: Improvements relating to coal cutters
Inventor: LOW ALEXANDER CHARLES
IPC: E21C27/02
Filed: 1956-03-05
Abstract: 796,641. Mineral - mining machines. MAVOR & COULSON. Ltd. March 19,1957 [March 5, 1956], No. 6786/56. Class 68(1) In a mining machine in which a rotary drum cutter acts on the buttock of a face the mined mineral is removed from within the interior of the drum into which it falls by a coveyer. The drum consists of arcular end plates 31, 32 interconnected by curved radially extending plates 35 that carry picks 37. The drum revolves on a hollow shaft 34 support in the gear head 13 and has an opening 39 through which mined mineral passes from the plates 35 of the drum. A helical conveyer 50 extends through the shaft 34 to the gear head. An overcutting jib 61 is mounted on a telescopic turret 64 on the gear head from which drives are taken to the drum, helical conveyer and overcutter chain 60.
Patent GB-1120175-A (GB)
Title: Pressure regulating devices for gas lighters
IPC: F23Q2/16
Filed: 1967-02-13
Abstract: 1,120,175. Lighters. S. T. DUPONT. 13 Feb., 1967 [18 Feb., 1966], No. 6845/67. Heading F4F. A pressure reducer device, for a gas-filled lighter, in the form of a cartridge comprises a disc 1 of compressible porous material interposed between a downstream part 2 of dished shape with a port 4 and an upstream part 3 having a port 5 coaxial with port 4 and forming a channel 7 with radial passageways 8, and a pin 6 with a head 6b is driven as a force fit into port 5 to hold the parts together.
Patent GB-368518-A (GB)
Title: Improvements in helical thrust ball and roller bearings and applications thereof
IPC: F16H25/22
Filed: 1931-03-05
Abstract: 368,518. Ball and roller bearings. SOC. ANON. DES ETABLISSEMENTS REPUSSEAU ET CIE, 75, Rue Danton, Levallois-Perret, Seine, France. March 5, 1931, No. 6857. Convention date, May 30, 1930. [Class 12 (i).] A cage, Fig. 1, for bearing balls or rollers is formed from an annular cage which is split radially; the edges of the split being bent away from one another so as to deform the cage into helical shape. The cage is particularly applicable to shock absorbers for vehicles. As shown, relatively movable sets of webs 5, 6, and interposed friction washers 7 are clamped together over a socket 8 by cups 9, 10, which may be resilient. The cup 9 is loose on a central pin 11 and is held thereon by a thrust bearing 12 and nut 13. The cup 10 is locked to the webs 5 and to a socket 18 loose on the pin 11. The latter has keyed thereto a socket 23 and a control lever 27. The adjacent faces of the sockets 18, 23 are helical and between them is positioned a helical cage of rolling members 21. Fluidtightness is secured by packing rings 16, 25, and cap 15. The lever 27 may be connected to a distant control by means such as a Bowden wire cable and the end of the sheath of the cable secured to the webs 5. During normal operation of the shock absorber no relative movement between the sockets 18, 23 occurs: To increase the clamping pressure or to take up wear the lever 27 is turned to cause relative movement between the sockets 18, 23 and the control means for the lever 27 is then locked in adjusted position. If the locking device is released the helical thrust bearing 21, which operates in a reversible manner, urges back the several parts to their initial position, through the reaction of the parts.
Patent GB-1048893-A (GB)
Title: Water-soluble alkyd resins and their preparation
IPC: C08G63/06
Filed: 1964-02-19
Abstract: An alkyd resin is prepared by heating a polyhydric alcohol, a polycarboxylic acid and an acid of formula <FORM:1048893/C3/1> where R-CH2OH or a C1- 3 alkyl group.  The hydroxy acid may be produced by oxidation of the corresponding hydroxy alcohol.  0.1-1.0 moles may be used per mole of polycarboxylic acid.  Hydroxy acids specified are trimethylol acetic, dimethylol propionic, dimethylolbutyric and dimethylol valeric.  The polyhydric alcohol may have 2-15 carbon atoms and 2-6 hydroxyl groups.  Alcohols specified are: glycerol, ethylene, propylene, butylene, pentylene and octylene glycols, neopentylene glycol, 2-methyl pentylene glycol, 3-methyl hexylene glycol, mono-, di- and tri-pentaerythritols, trimethylol-ethane, propane and butane, 1,2,6-hexane triol, tetramethylol cyclohexanol, sorbitol and mixtures thereof.  The polycarboxylic acids may have 2-12 carbon atoms and 2 or 3 carboxyl groups and may be aromatic or straight chain or branched aliphatic.  Acids specified are: citric, tartaric, citraconic, malonic, glutaric, phthalic, iso- or terephthalic, oxalic, succinic, adipic, azelaic, suberic, camphonic, mellitic, sebacic and mixtures thereof. The acids may be replaced by their anhydrides. The number of moles of polycarboxylic acid per mole of polyhydric alcohol may be 2/3 -1\ba1/2 and the total acids present may account for 3-38% of the solid content.  Polyesterification may be a batch or continuous process at 150-250 DEG  C. and under an atmosphere of CO2 or N2.  2-4% of a solvent, e.g. xylene or another coal tar distillate, may be present to allow azeotropic removal of water.  Saturated and unsaturated monocarboxylic acids may also be present, the number of moles of such acids per mole of polyhydric alcohol being 2 less than the number of hydroxyl groups in the alcohol.  Monocarboxylic acids specified are: caproic, caprylic, coconut oil, lauric, castor oil, olive oil, beef tallow and mutton tallow fatty acids, linoleic, linolenic, tall oil, soya oil and sunflower seed oil fatty acids.  The polyhydric alcohol and the monocarboxylic acid may be replaced by their ester.  Other optional additives are: 0.5-30% surface active agent, e.g. polyoxyethylene sorbitol, urea/formaldehyde or hexamethoxy melamine; 0.001-2% drier, e.g. lead, cobalt or manganese naphthenate; an unsaturated polycarboxylic acid, e.g. maleic, fumaric or itaconic, and a pigment. The product may have an acid number of 35-75, at least half the free acid groups therein resulting from the hydroxy acid.  It may be cooled, neutralized with a base, the cation of which forms water soluble salts with organic acids and diluted with water.  The base may be a 3% solution in water and may be preheated to 70-80 DEG  C. Bases specified are: NH4OH, ethanolamine, methylamine, diethanolamine, dimethylamine, dimethylethanolamine, trimethylamine, triethylamine, NaOH, KOH and LiOH.  Tert.-butanol (1 part) may be mixed with 4-5 parts of the water used as diluent.  The products may be used as baking and air drying lacquers.
Patent GB-1139137-A (GB)
Title: Improved drying oils containing polyalkylene oxide and/or polyurethane groups
IPC: C08G18/36
Filed: 1966-02-16
Abstract: 1,139,137. Polyalkylene oxides and polyurethanes; epoxidized drying oils. UNILEVER Ltd. 16 Feb., 1966 [17 Feb., 1965; 16 Dec., 1965; 12 Jan., 1966; 13 Jan., 1966; 31 Jan., 1966], No. 6898/66. Headings C3B and C3R. The invention comprises semi-drying and drying oils, characterized that on average not more than 1À5 ethylenic double bonds in the oil molecule have been oxidized and converted into a group where P and Q represent the same or different groups -(OR) n T, excluding the case where P and Q are both OH, R is the same or different C 2-3  alkylene group, n is zero in at least one of the groups P and Q and otherwise an integer, the average value of which varies between 3 and 400, T represents the same or different groups: where V is OH when n is an integer or the group: excluding the possibility that V is -OH when n is zero, A is the same or different hydrocarbon radical derived from an organic polyisocyanate, r is 1 or 2 and n<SP>1</SP> may be the same or different from n but satisfies the same conditions. They may be obtained by oxidizing not more than 1À5  ethylenic double bonds in each oil molecule and reacting the product thus obtained with a polyalkylene glycol and/or a polyisocyanate in this or in the reversed sequence. The oxidation of the oil (i.e. conversion of the ethylenic double bonds into oxirane groups or into vicinal hydroxyl groups with which the organic isocyanate may react) may be effected (a) by reacting the oil with a " per " acid, which may be formed in situ (e.g. from hydrogen peroxide and a caroxylic acid), generally in the presence of a catalyst below 100‹ C. and the oxirane groups may subsequently be hydrolysed to vicinal hydroxy groups, e.g. with water, generally by heating in the presence of an acid catalyst, or (b) with mild oxidation agents, e.g. H 2 O 2 , generally with a catalyst such as osmium tetroxide or vanadium pentoxide, or potassium permanganate, generally below 100‹ C. The conversion of the epoxy groups into polyalkylene oxide groups with polyalkylene glycols, which generally have an average molecular weight of 200 to 20,000 and which are generally employed in quantities exceeding 0À5 mols. per epoxy group, preferably 1 to 2 mols. per epoxy group, may be effected between 20‹ and 130‹ C., preferably in the presence of a catalyst. The reaction of the hydroxyl compound, which generally contains not more than two hydroxyl groups in the molecule, with isocyanates is generally effected at between 50‹ and 200‹ C. and conventional catalysts may be employed. The oils may be semi-drying and drying natural and mineral (synthetic) oils and fatty acid condensation products, specified natural oils being linseed, dehydrated castor, tung, citicica, soyabean, sunflower and fish oils and tall oil esters. Specified polyisocyanates are toluene, triphenylmethane and hexamethylene diisocyanates. Driers and coupling agents may be added to the products.
Patent GB-109757-A (GB)
Title: Improvements in and relating to Mixing Machines.
Inventor: CLARK CHARLES EASTON
IPC: A21C1/14
Filed: 1917-05-15
Abstract: 109,757. Clark, C. E. May 15, 1917. Stationary batch mixers with rotary stirrers.- Duplex or double-bladed mixing-machines are provided with a partition which can be readily inserted into the container of the mixer to divide the container into two sections, either of which can be used when mixing a small quantity of material. The dividing-partition 1 is provided on its lower edge with a curved plate 2 to engage the ridge on the bottom of the container 5. The plate 2 may be integral with, or be secured by plates 3 and rivets to, the partition. A plate 6, bent to form a framework which fits snugly within the top of the container, is secured near the top, and in recessed portions of, the side edges of the plate 1 by means of angle-plates 7 and rivets 8. A lip 9 in the top edge of the partition facilitates the pouring-in of the materials to be mixed.
Patent GB-214401-A (GB)
Title: Improvements in connection with elevating mechanism for light ordnance carriages
IPC: F41A27/24
Filed: 1923-03-10
Abstract: 214,401. Beardmore & Co., Ltd., W., and Bremberg, A. March 10, 1923. Mountings. - Relates to elevating-gear for light ordnance of the kind comprising a vertically adjustable pillar A which is arranged between a hinge-pin B<1> on the gun and a clampable sleeve A<5> hinged to the carriage. According to the invention, a known form of sleeve for rough adjustment is combined with a known form of eccentric bearing for the pin B<1> which permits of fine adjustment. In the form shown, the pillar A slides in a split sleeve A<5> clamped by a screw lever A'. The sleeve has trunnion pins A<4> and arcuate surfaces x for ready attachment to the carriage A<6>. At the upper end of the pillar an eccentric sleeve B surrounding the hinge-pin B<1> is adjusted by rotating a worm gear B<3>.
Patent GB-1192896-A (GB)
Title: Improvements in Valve Plates
IPC: F16K15/16
Filed: 1969-02-10
Abstract: 1,192,896. Making valves. ROBERT BOSCH G.m.b.H. 10 Feb., 1969 [10 Feb., 1968], No. 7014/69. Heading B3A. [Also in Division F2] In a method of making valve plates from thin, spring steel plate, a chemical or electrochemical process is used in at least a final stage of the formation of an edge of the valve plate. The plate is prepared by painting it with a photo lacquer and the outline of the plate is formed therein as an unexposed layer by exposing the plate through a sheet of transparent material with blackened regions corresponding to the plate outline. The layer is then removed. The plate is connected as an anode in an electrolytic bath and the valve plate electro-chemically machined out. Alternatively the valve plate is chemically etched in an etching bath. In a second embodiment, the valve plate is stamped out about 0À5-1À0 mm. oversize and brought to its final dimensions electrochemically.
Patent GB-1415232-A (GB)
Title: Vehicle suspension struts
IPC: F16F9/06
Filed: 1973-02-13
Abstract: 1415232 Attaching fluid conduits to shock absorbers AUTOMOTIVE PRODUCTS Ltd 14 Jan 1974 [13 Feb 1973] 7067/73 Heading F2S A vehicle suspension unit (Fig. 1) has a conduit 41 (for supply or removable of fluid to/from the pressure chamber to regulate the height of the unit, or for establishing a control pressure to influence the brakes of the vehicle) removably mounted on the unit via a tubular member 37, 38 which, when inserted in a passage 25 leading to the pressure chamber of the unit, holds off its seat 33 a valve member 28 which is biased by a spring 34 to close the passage. When the conduit and tubular member are removed, the valve closes to re-seal the unit. A second valve is housed in an enlarged bore 42 of the tubular member and comprises a valve member 45 biased by a spring 46 against, a seat on a cup-shaped end 43 of the tubular member to close the passage through the tubular member.  When the tubular member is inserted in the passage 25, and a nut 39 on the member is screwed into a thread 27 on the unit, initially a stem 44 carrying the second valve member 45 contacts a stem 31 of the first valve and the second valve member 45 is pushed off its seat. Then; on continued screwing, the cup-shaped end 43 of the tubular member contacts the stem 31 and pushes the valve member 28 off its seat. The parts 31 and 43 are suitably grooved and apertured to allow flow when both valves are open.  The unit may be self-levelling, with an internal or external pump (not shown).
Patent GB-1494919-A (GB)
Title: Aluminum alloy
IPC: C22C21/10
Filed: 1975-02-19
Abstract: 1494919 Aluminium base alloy HITACHI Ltd 19 Feb 1975 [20 Feb 1974] 7077/75 Heading C7A Aluminium base alloy comprises:- the balance, apart from incidental impurities, being Al. The weight ratio of Zn: Mg is preferably about 1.
Patent GB-164152-A (GB)
Title: Improvements relating to pneumatic tyres
IPC: B60C27/16
Filed: 1920-03-09
Abstract: 164,152. Crook, F., and Crook, A. March 9, 1920. Tread bands, projections, and surfaces; tyre attachments to rims.-A double-ended tread band 5 is detachably secured over the tyre cover 1 by press-stud devices 3, 6. The ends of the band interengage at 8, 9, a bead 10, which may have a metal reinforcement, being formed on the projection 8. The edges of the tread band are fitted with wires 13 recessed into the tyre cover and adjusted by turn-buckle or other means. As a further securing-means, flaps 20 on the tread band have edgereinforcements 21 which are forced against the wheel rim 23 by setscrews 24. The latter are threaded through yokes 22 arranged at intervals around the wheel. The parts 6 of the press-studs may be provided with projecting tread studs 25, Fig. 10. To increase adhesion, the metal fittings at the ends of the tread band and the press-studs may he magnetized.