baber/WOPTO huggingface dataset:
Patent GB-510972-A (GB)
Title: Improvements in or relating to heating apparatus for air or other gases
IPC: F24H9/20
Filed: 1938-02-21
Abstract: 510,972. Fluid-pressure servomotor-control systems. VICTORIA TUBE CO., Ltd., and ADAMS, E. F. Feb. 21, 1938, No. 5334. [Class 135] [Also in Group XIII] In an air heater of the kind in which the air is blown by an electric fan 1, Fig. 1, over a heating unit 2 heated by a gas burner, the fan motor and the gas supply to the burner are simultaneously controlled thermostatically or manually by an electric switch comprising an electro-magnet 3, Fig. 3, and a pivoted armature 4, one arm of which contacts with a fixed contact 6 to complete the circuit of the fan motor, and the other arm carries the pilot valve 8 of the gas relay valve 9 controlling the gas supply. When the valve 8 is closed, the pressure of the gas allowed to bye-pass the relay valve maintains the valve in its closed position. When the valve 8 is open, the gas on the top side of the relay valve passes through pipe 12 to a pilot jet 10, which is closed thermostatically when the jet is not lighted.
Patent GB-116248-A (GB)
Title: Improvements in connection with Tappet Valve-gear for Internal Combustion Engines.
IPC: F01L1/14
Filed: 1918-03-30
Abstract: 116,248. Albion Motor Car Co., and Murray, T. B. March 30, 1918. Valve-gear.-A cam roller A which is housed in a recess in a valve rod B is supported by pins E in side plates C riveted to the rod. The holes in which the pins E are mounted are sufficiently large to permit the roller to bear against the wall of the recess when pressure is applied to the rod. Modifications are described in which the side plates engage undercut recesses in tha red and in which the rollers are supported by cylindrical or conical pins carried by the side plates, or the roller may be mounted loosely upon a long pin riveted to the side plates.
Patent GB-592212-A (GB)
Title: Improvements in the alkylation of paraffins with olefins
IPC: C07C2/60
Filed: 1943-04-08
Abstract: Alkylates of isoparaffins with ethylene prepared with aluminium bromide as catalyst are incorporated in aviation gasolines.  In particular, 2, 3-dimethylbutane is blended with isopentane, heavier alkylates, and T.E.L.ALSO:Hydrocarbons of gasoline boiling range are obtained by alkylating light isoparaffins in the liquid phase with ethylene in the presence of aluminium bromide dissolved in the liquid hydrocarbons to give a homogeneous liquid system.  The reaction products vary with the concentration of catalyst.  With isobutane and less than 1 mol. per cent of aluminium bromide based on the paraffins, the hexane fraction of the alkylate is entirely 2,3-dimethylbutane.  At higher concentrations, 2,2-dimethylbutane is also produced as well as small amounts of 2-methylpentane, the former constituting the major part of the hexane fraction at high concentrations, generally above 3 mols. per cent., with long contact times.  With 0.5 mol. per cent or less of the catalyst, pentanes, heptanes, and nonanes are not produced.  The 2,3-dimethylbutane may be blended with isopentane, heavier alkylates, and tetraethyl lead to give aviation fuels of above 100 octane number.  Catalyst promoters such as water, hydrogen, halides, and alkyl halides may be used. Suitable temperatures are, for example, - 10 to 70 DEG  C. and pressures 20-250 lbs./sq. in.  The results of alkylation at 10 DEG C. and 90 lbs./sq. in. with 0.2 mol. per cent aluminium bromide are compared with aluminium chloride and thermal (non-catalytic) alkylation. In examples: (1) ethylene is added over 9 hrs. to 0.2 mol. per cent AlBr3 dissolved in isobutane at 20 DEG  C. and 80 lbs./sq. in.  After standing for 10 hrs., the catalyst is removed with water and isobutane stripped from the liquid product which is mainly 2,3 - dimethylbutane with some branched octanes, and small amounts of decanes and higher boiling hydrocarbons; (2) 1 mol. per cent AlBr3 is used, contact time being 3 hrs + an additional hr., at 15 DEG  C. and 50 lbs./sq. in.  The product is 2,3-dimethylbutane with isopentane and some 2,2-isomer, and higher hydrocarbons mainly branched octanes; (3) with 5 mol. per cent.  AlBr3 and .025 mol. per cent water at 17 DEG  C. and 35 lbs./sq. in., the product contains isopentane, and 2,2-dimethylbutane together with some 2,2-isomer, 2-methylpentane, n-pentane and higher hydrocarbons; (4) 0.5 mol. per cent AlBr3 in isopentane is used at 20 DEG  C. and 65 lbs./sq. in., the product being largely heptanes, mainly 2,3-dimethylpentane, and some nonanes, with minor amounts of higher hydrocarbons.
Patent GB-1369356-A (GB)
Title: Automotive wheel and drum assembly
IPC: B60B3/14
Filed: 1972-02-08
Abstract: 1369356 Vehicle wheels INTERNATIONAL MFG CO Inc 8 Feb 1972 5703/72 Heading B7C A wheel structure consists of a cast wheel 12 of magnesium, aluminium or their alloys having a rim 18 and a web 21 formed with radial elongate openings 23; and a locator plate 13 provided with sets of apertures 30, each aperture of a set being radially and arcuately spaced from the others, and a flanged central aperture 27, the plate being capable of being mounted on wheel drums 11 having studs 16 arranged on circles of different radii and providing a close fit with a hub 17 and the wheel being in use arranged on the hub with the studs passing through openings 23 with surface 34 of the wheel a close fit with surface 35 of the flange 29, nuts 25 with washers 26 being used to fasten the wheel on the drum. The nuts 25 and openings 23 may be tapered. It is not necessary that there be contact between the web 21 and hub 17. In a modification the plate may consist only of an annular ring adapted to fit closely with the hub 17 with its outer edge within the circle on which the studs are located.
Patent GB-179698-A (GB)
Title: Improvements in and connected with trolley wheels for the poles of electric tram-cars and such like
IPC: B60L5/06
Filed: 1921-10-28
Abstract: 179,698. Nightingale, E., and Nightingale, E. Oct. 28, 1921. Trolly pulleys comprise a flange a<2> with an integral boss a<1>, a threaded portion a<5>, and two separate square or irregular portions a<3>, a<4> for the tread ring b and flange c. The parts are secured by a nut d engaging the threaded portion a<5>. Locking parts may be provided between the ring b and one of the other elements, and also projections or parts to facilitate unscrewing.
Patent GB-765411-A (GB)
Title: Magnetic trip with short time-lag-release
IPC: H01F7/08
Filed: 1955-02-25
Abstract: 765,411. Electrically-released switches. AKT.-GES. BROWN, BOVERIE & CIE. Feb. 25, 1955 [March 1, 1954], No. 5724/55. Class 38(5) A magnetic trip with a short time-lag release comprises two parallel magnetic circuits each with an air gap 6, 7, and which are joined by a permanent magnet 1, the air gap 6 being bridged by an armature 5 whilst the air gap 7 is open and each of the parallel magnetic circuits having a coil 3, 4 through which tripping impulses of constant polarity pass in a direction such that they weaken the permanent magnetic field in the circuit including the armature, so that the armature is released, whilst the magnetic field in the other circuit is strengthened. The arrangement is stated to prevent a reversal of magnetization in the permanent magnet 1 . A spring 8 may be provided which withdraws the armature 5 when the magnetic field in the appropriate circuit is weakened. Both the parallel magnetic circuits may have the same or a different permeance, and the coils 3, 4 may have the same or a different number of turns.
Patent GB-778102-A (GB)
Title: Improvements in and relating to adhesive compositions and polymeric products for usetherein
Inventor: HAWARD ROBERT NOBBS
IPC: C08F36/00
Filed: 1955-02-25
Abstract: Graft polymers are prepared by polymerizing a vinyl pyridine and at least one other polymerizable organic compound containing an ethylenic double bond, in emulsion in a latex of a rubber polymer containing ethylenic double bonds.  The vinyl pyridine may be 2-vinyl, 3-vinyl, 4-vinyl, 5-ethyl-2-vinyl or 5-methyl-2-vinyl pyridine or mixtures thereof, and the other polymerizable compound may be styrene, an acrylate such as butyl acrylate, a methacrylate such as methyl methacrylate, vinyl toluene, acrylonitrile, phenyl vinyl ketone or ethyl benzylidene cyanacetate when used with a molar excess of a compound containing a CH2 = C< group.  The rubber polymer may be natural rubber, a butadiene-styrene or butadiene-acrylonitrile copolymer or polychloroprene.  The monomers may be emulsified with the aid of a dispersing agent such as sodium or potassium oleate, polyvinyl alcohol and sodium resinate, and a catalyst such as tertiary butyl hydroperoxide, benzoyl peroxide or potassium persulphate may be used, with or without an activator such as diethyl triamine.  One or all of the monomers and the catalyst and activator may be added in stages during the polymerization.  A composition of the polymer and a heat-convertible phenol-aldehyde resole, preferably a resorcinol-formaldehyde resole, may be used as an adhesive; the composition may be prepared by mixing the polymer latex with an aqueous solution of the resole. Specification 595,290, [Group IV], is referred to.
Patent GB-108292-A (GB)
Title: Improvements relating to Hydraulic Valve Seatings.
Inventor: CROWE HENRY
IPC: F16K1/42
Filed: 1916-07-28
Abstract: 108,292. Crowe, H. July 28, 1916. Seats.-The cage c which holds down the loose seat b of an hydraulic valve has its upper portion c<1> of reduced diameter to form a space for the U-leather d, and to enable the valve body and cover e to be smaller than usual.
Patent GB-1388109-A (GB)
Title: Continuous-tone microphotographic images
IPC: G03C5/46
Filed: 1971-03-03
Abstract: 1388109 Photographic processing for micro images KODAK Ltd 31 May 1972 [3 March 1971] 5874/71 Heading G2C A photographic process, especially for making continuous-tone micro-photographic images, comprises image-wise exposing a photographic silver halide material having an average grain diameter of less than 0.1 micron, developing the exposed material with a developer containing as silver halide developing agent only a 3-pyrazolidone or 3-pyrazolidones, e.g. a solution of 4-hydroxymethyl-4-methyl-1-phenyl pyrazolid-3-one and sodium sulphite in water, and treating the image, after fixation and washing, with a gold toning solution, e.g. a solution of gold chloride and ammonium thiocyanate in water. The silver halide material of the above average grain diameter preferably gives a density of at least 3.0 on normal exposure and development and may contain an absorbing dye in the emulsion, e.g. bis(3-methyl- 1-p-sulphophenyl-4-pyrazol-5-one)-trimethinoxonol.
Patent GB-159222-A (GB)
Title: Improvements in flying machines of the helicopter type
IPC: B64C27/10
Filed: 1921-02-21
Abstract: 159,222. Pateras Pescara, Raul, Marquis of. Feb. 21, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Drawings to Specification. Screw and like propellers.-The propellers of a helicopter are carried on concentric tubular hubs mounted on ball bearings. The annular space between, and the central space in, the hubs serve to carry the various mechanisms which control the steering, the driving, and the stability of the machine. In a modification, double-deck propellers of six sections each are used.
Patent GB-230268-A (GB)
Title: An improved mud guard stay support for bicycles and like vehicles
IPC: B62J15/02
Filed: 1924-03-07
Abstract: 230,268. Jones, J., and Bluemel Bros., Ltd. March 7, 1924. Mud - guards. - A bicycle &c. mudguard stay l is carried by a bolt adjustable in a longitudinal slot i in a plate a attached to a front fork, back stay &c. by a clip. The clip comprises a flexible band b having an end hooked in an aperture in an end of the plate a and having holes d one of which is engaged by a tongue e in an end-piece f. The end-piece f is attached to the plate a by a bolt h which tightens the band on the stay &c. Bolt j has flats engaging the edge of the slot i and the head of the bolt j is narrower in one direction to allow it to be inserted into or withdrawn from the slot i.
Patent GB-967821-A (GB)
Title: Improvements in electro-hydraulic actuators
Inventor: MONGAR WILLIAM CHARLES
IPC: F15B9/09
Filed: 1960-02-19
Abstract: 967,821. Measuring displacement electrically. SPERRY GYROSCOPE CO. Ltd. Jan. 20, 1961 [Feb. 19, 1960], No. 5948/60. Heading G1N. A pick-off for measuring linear displacement comprises a cylindrical stator 16 with an A.C. energized winding and a pick-off winding, whose coupling is varied by an armature 3 comprising a tube of magnetic material, half of whose surface carries a 4-start square thread filled with a non-magnetic material, e.g. copper. The two parts of the armature are separated by sealing rings 2<1> forming a piston head in an hydraulic actuator 5 which is moved axially by fluid supplied through conduits 6, 7 by a control valve 8. The displacement is measured by a coarse signal obtained from a separate pick-off 17, 18,and a fire signal from the windings of stator 16 coupled by the magnetic thread on the armature 3, and indicative of the displacement within one pitch of the thread. Specifications 816,714 and 842,376 are referred to.
Patent GB-106485-A (GB)
Title: Improvements in or relating to the Construction of Aeroplane Fuselages.
Inventor: VEDRINES JULES
IPC: B64C1/00
Filed: 1917-04-27
Abstract: 106,485. Vedrines, J., and Astoux, L. L. May 16, 1916, [Convention date]. Framework.-An aeroplane fuselage has a rear part built around two plywood frames crossed at a right-angle or other angle, and a front part formed of four longitudinal members braced together, bent, and secured to the vertical frame of the rear part. Fig. 1 shows two open frames 1 and 2 each slotted longitudinally to enable a crossed joint to be formed which is strengthened by brackets 7. Frames 8, Fig. 4, also of plywood and conforming to the outer shape of the fuselage, are secured to the frames 1, 2 and are notched at 0 to receive flexible longitudinal battens to support the fabric covering. The frames 2, 1 are integral with the fixed stabilizing- plane and vertical fin respectively. The front part consists of four members 10 bent at their rear ends and secured to the frame 1. Plywood frames 11 similar to the frames 8 are secured to the members 10. Fabric may be used between adjacent layers of wood in the various frames.
Patent GB-526809-A (GB)
Title: Improvements in or relating to switching devices for giving warning of the operation of electric circuits or systems
IPC: G04F3/08
Filed: 1939-02-23
Abstract: 526,809. Actuation of switches. RUSSELL, W. F. Feb. 23, 1939, No. 5997. [Class 38 (v)] Operation of a time switch or hand switch 37 completes the circuit to an electric motor which drives two relativelyadjustable stepped cams 1, 2 which co-operate with adjustably-mounted switches 12, 13, 14, 15 to cause in succession, at predetermined intervals, the operation of a warning signal, the closing of a circuit, e.g., to move a contactor " on," and the breaking of the motor circuit. At a later time, the switch 37 is moved into its other position which again closes the motor circuit and causes a similar sequence of operation, excepting that in this case a circuit is closed to cause the contactor to move "off." The cam 1 has two steps 7, 8 and the cam 2 one step 12, and in the stationary position the spring 21 of switch 12 or 14 rests on the first step 7. The circuit to the motor is now prepared through the contacts 21, 22, of the other switch 14 or 12 and is completed by the operation of the two-way switch 37. As the cams rotate, spring 21 slips on to the step 8 so as to engage contact 20 as shown to close the circuit to a horn but this circuit is opened a little later by the spring 20 passing over step 12. At a later time springs 23, 24 of switch 13 or 15 by passing over the steps engage each other for a short period thereby energizing the closing or opening coil of the contactor. Relative adjustment of cams 1, 2 and of switches 12... 15 is effected by means of the slots 5 and 17.
Patent GB-541803-A (GB)
Title: Alkaline detergents
IPC: C23G1/16
Filed: 1940-04-03
Abstract: 541,803. Alkaline detergents. HALL LABORATORIES, Inc. April 3, 1940, No. 6015. Convention date, May 1, 1939. [Class 91] An alkaline detergent which may be used to clean soft metal without corrosion thereof, the alkalinity of which is derived principally from the presence of an alkali metal silicate, phosphate and/or carbonate has incorporated therewith a soluble mercury salt. It is stated that the addition of the mercury salt has the effect of preventing corrosion of the soft metal. Salts of mercury mentioned include mercurous or mercuric salts such as chlorides, nitrates, acetates and salicylates. The amount of mercury salt used is about 1 per cent. based on the weight of the alkali present and generally at least 2 per cent. by weight. In examples for washing bakery pans a cleaning composition comprises 95 per cent. sodium metasilicate and 5 per cent. of mercuric chloride. This is dissolved in water in amounts of from 1-3 per cent. Other compositions referred to include one of 95 per cent. sodium orthosilicate and 5 per cent. mercuric chloride and one of 35 per cent. sodium hydroxide and 5 per cent. mercuric chloride. Reference has been directed by the Comptroller to Specifications 8078/00, 20651/06 and 321,729, [all in Class 91].
Patent GB-1473064-A (GB)
Title: Loose-leaf binder
IPC: B42F13/28
Filed: 1975-02-13
Abstract: 1473064 Loose-leaf binders KING JIM CO Ltd 13 Feb 1975 [13 Feb 1974 (6) 3 Oct 1974 5 Oct 1974] 6212/75 Heading B6E A loose-leaf binder includes a base element 1, Fig. 1A, comprising a base 3 and upstanding side walls 5 which are associated detachably with sheet retainers 7 provided with tubular and nesting rods 9, 11, respectively, the retainers 7 being mounted pivotally on hooks 17 using hooking rods 19. Following nesting of rods 11 in rods 9, the retainers 7 are coupled to the side walls 5 by torsion spring biased plates 13 which are articulated to the walls 5. A number of different embodiments is described with reference to the manner of coupling the retainers 7 to the side walls 5.
Patent GB-582012-A (GB)
Title: Improvements in machines or apparatus for use in drying or conditioning cereal grain
IPC: F26B17/12
Filed: 1944-04-03
Abstract: 582,012. Apparatus for conditioning grain. CARR, J. B., and HANDLEY, C. G. April 3, 1944, No. 6214. [Class 58] [Also in Group XIII] Grain is dried by passage down a tower or column 10 where it is subjected successively to sweating, drying and cooling treatments and also, if desired, a preheating treatment. Atmospheric air is induced through a collector box 17, a passage 18 in a fuel or electricallyheated furnace 16, a duct 19, the drying section 14 of the tower and the outlet duct 20 of the latter by a fan 21, and from thence the resulting moist air is blown through a duct 22, heating tubes 23 of the furnace 16, and a duct 24 to the sweating section 13, the exhaust duct 25 of the latter opening to atmosphere through the box 17 which is provided with a pivoted deflector plate 26 ; some of the exhaust air from the sweating section 13 may, however, be directed to flow through tubes 28 in the preheater section 12 which is located at. the top of the tower and is provided with an exhaust 29. Simultaneously atmospheric air is induced through the cooling section 15 by a second fan 30, the exhaust from which may be used for blowing the dried grain to a desired destination. For conditioning the grain, as distinct from drying, the deflector plate 26 in the collector box 17 is adjusted to permit the whole or part of the moist air from the duct 25 to be recirculated through the furnace 18 and both drying and sweating sections 14, 13. The air in the sections 13, 14 may be maintained at the desired temperature by thermostatic control of the heater.
Patent GB-511970-A (GB)
Title: Improvements in or relating to alternating current frequency changers
IPC: H02M5/32
Filed: 1938-02-28
Abstract: 511,970. Frequency changing. SIEMENSSCHUCKERTWERKE AKT.-GES. Feb. 28, 1938, No. 6271. Convention date, Feb. 27, 1937. [Class 38 (ii)] A.C. networks 7, 22 of different frequencies are interconnected through a frequency changer comprising a transformer having secondary windings 9, 9<1> associated with two mechanically operated switching devices 15, 15<1> driven by a synchronous motor 20, the arrangement being such that slip rings 18, 18<1> are respectively maintained at positive and negative potentials and are connected alternately to opposite sides of the network 22 through rotary distributors 19, 19<1> driven synchronously with the frequency of that network. Saturable chokes 11, 12, 11<1>, 12<1> are included in the star point connections to the transformer windings to improve commutation. Modifications are described in which the mechanical distributors 19, 19<1> are replaced by grid-controlled valves, Figs. 2 and 4 (not shown), or by saturable chokes in the star point connections the saturation of the chokes being controlled by biassing current derived from the network 22, Fig. 3 (not shown). In one arrangement, two groups of valves operating as distributors for a two phase circuit, which may be the energising winding of a motor, are employed. The output frequency may be varied to effect speed control of a motor fed by the arrangement.
Patent GB-1203516-A (GB)
Title: Improvements in or relating to conveyors
IPC: B65G17/20
Filed: 1968-02-08
Abstract: 1,203,516. Overhead rail type endless conveyers. CENTRAL WAGON (ENG.) Ltd., and A. KING. 6 May, 1969 [8 Feb., 1968], No. 6402/68. Heading B8A. A conveyer comprises a plurality of hangers 11, connected to a drive chain 12 and spaced along a rail 10, a load-supporting bar portion 16 extending between each hanger and an adjacent hanger, the connection between each bar portion 16 and the two hangers 11 between which it extends permitting a degree of universal movement of the hangers relative to each other. Each hanger 11 supports an apertured plate 18 which is rigid with an associated bar 16. The free end of the latter is supported in the aperture of the plate 18 of the next adjacent hanger 11. Each bar 16 may be formed with upwardly and downwardly extending projections for locating the load (Fig. 3, not shown).