baber/WOPTO huggingface dataset:
Patent GB-617493-A (GB)
Title: Improvements relating to dehydrating methods and apparatus
IPC: F26B25/22
Filed: 1946-10-03
Abstract: 617,493. Drying materials. JENNINGS, H. W. K. (American Dairies, Inc., and Quaker Oats Co.). Oct. 3, 1946, No. 29553. [Class 34(ii)] In a drier 10 heated by a gas jet 13 fed from a gas pipe 14, material leaving the drier is sampled by diverting a portion into a hopper 31 where it is fed forward by the screw 32 and compressed in the chamber against the pressure of a spring loaded valve 37. An electric current is passed through the compressed material by means of electrodes 43, 44 which are carried on insulating pieces 41, 42, and changes in electrical properties indicative the moisture content of the substance may be sensed by the electronic apparatus 48 and converted into a reading on a meter " M " or into a control current for the motor 21 or a fuel valve 16 or both. By means of the control current developed by the device 48 the speed of the motor 21 may be varied thus varying the rate at which the material is fed into the drier, or the setting of the fuel valve 16 may be altered to regulate the temperature within the drier. U.S.A. Specification 2,251,641 is referred to.
Patent GB-465046-A (GB)
Title: An adaptable fire grate with fret intended to be used in connection with varying sized spaces available for open heating grates
IPC: F24B1/193
Filed: 1935-10-26
Abstract: 465,046. Grates for open fireplaces. BRADFIELD, W. S. Oct. 26, 1935, No. 29582. [Class 126] In a firegrate comprising rear and front grate parts A, C, these parts, which are relatively movable to vary the depth of the grate according to the depth of the firespace, are independently supported. To vary the width of the grate, there may be provided independently supported side grate parts E or side cheeks, or the grate part A may be formed with or carry laterally projecting bars of variable length. The grate parts may all be carried by legs L, L<2>, or the front grate part C may be carried by the fret B, as shown. One part slides under or over another. An aperture may be provided in the fret B to receive a leg of the trivet described in Specification 408,343.
Patent GB-391441-A (GB)
Title: Improvements in apparatus for arranging oval cigarettes in regular order and in rows
IPC: B65B19/08
Filed: 1931-10-26
Abstract: 391,441. Arranging cigarettes for packeting. ROSE, A. G. and ROSE BROS. (GAINSBOROUGH), Ltd., Albion Works, Gainsborough, Lincolnshire. Oct. 26, 1931, No. 29605. [Class 94 (i).] In order to arrange cigarettes of oval cross section with their major cross-sectional axes parallel, the cigarettes pass from a hopper 10 between vertical vanes 11 on to a support formed by ledges on the lower edges of the vanes. Pusher pieces 25 on intermittently moving chains 20 move the cigarettes on to extensions 17, 19 of the vanes of the hopper so that they rest in open topped chambers, the widths of which are less than the major crosssectional axes. A brush 26 is moved across the top of the chambers and causes the cigarettes to adopt the parallel formation shown.
Patent GB-1437974-A (GB)
Title: Ink fountain on printing presses
IPC: B41F31/04
Filed: 1973-06-21
Abstract: 1437974 Inking apparatus ROLAND OFFSETMASCHINENFABRIK FABER & SCHLIECHER AG 21 June 1973 [21 June 1972] 29612/73 Heading B6C A printing ink fountain comprises a duct roller 6 and a duct blade 5 made up of a plurality of relatively, movable sections, each of which has an associated slide piece 9, constrained in a guide to move together with the section in a direction substantially perpendicular to the length of the blade and provided with means for adjusting its position. The guide may be sealed by elements 20 or by a cover, and the sections may be in contact or be separated by a sealing agent, or by a material of higher elasticity. An elastic bar may be interposed between the sections and the roller, or the blade edge may be in one piece of an elastic material and the relatively movable sections be separated by spaced slots in its rear part. Preferably the guide limits the sections to movement in a plane containing the axis of the roller.
Patent GB-638497-A (GB)
Title: Improvements in or relating to tubular heat exchangers formed with fluid-cooled walls
IPC: F23M5/08
Filed: 1946-10-04
Abstract: 638,497. Furnace walls. BABCOCK & WILCOX, Ltd. Oct. 4, 1946, No. 29626. Convention date, Oct. 4, 1945. [Class 51 (i)] [Also in Groups XIII and XXII] The wall of a tubular heat-exchanger, e.g. a waterwall of a steam-generator furnace, comprises fluid tubes 11 arranged side by side along one face of a sheet metal casing 20 formed in sections and metal studs 30 extending from the other face of the casing and each united with the casing by pressure-tight welds 38 which also join together the casing and the tubes. The casing sections are joined by seal welds and the studs 30 are welded to the tubes and to the outer casing sections in a single operation using a stud welding device as described in Specification 542,025, [Group XXII]. The tubes may be in contact along their lengths as shown or they may be spaced apart in which case they may have metallic studs radially secured thereto in the inter-tube spaces. After the studs 30 have been applied a stratum 50 of thermal insulation, e.g. concrete with a kieselguhr base, is applied to the exterior surface of the casing and is held in position by sheets 52 of reticulated metal and secured by fasteners on the studs. Thereafter joint screeds 60 are secured to the reticulated metal 52 to form pockets in which a further stratum 70 of thermal insulation, e.g. a composition including 85 per cent magnesia, may be applied as a plastic. Fasteners on the studs hold stratum 70 in position. An outer covering 80 of hard finish plastic material, e.g. a mixture of asbestos fibre and Portland cement, is applied to cover the fasteners, the ends of the studs 44 and the exterior surface of stratum 70. A highly refractory chrome ore composition may be installed as a semi-plastic in the spaces between tubes 11 and sheet metal casing 20. Specification 549,151 also is referred to.
Patent GB-1145549-A (GB)
Title: A lubricator
IPC: F16N13/20
Filed: 1967-06-27
Abstract: 1,145,549. Lubricator. C. VOGEL, [trading as WILLY VOGEL]. 27 June, 1967 [1 July, 1966], No. 29691/67. Heading F2A. [Also in Division F1] A lubricator comprises a multiple-pumping set having a central driven gear-wheel meshing with a number of smaller gear-wheels to form the same number of gear-pumps, the latter being supplied with pressurized lubricant by means of a gear-pump which comprises two gear-wheels of different pitch circle diameters, the gear-wheels also forming an input reduction gearing for transmitting a drive to the central gear-wheel of the pumping set. The pressure of the lubricant supplied to the set may be maintained constant by means of a valve. In an embodiment, a multiple-pumping set 1 comprises a central gear-wheel 2 which meshes with a number of smaller gear-wheels 3. The set 1 is supplied with pressurized-lubricant by a gear pump 4, having a gear-wheel 6 mounted on a shaft 7 of the central gear-wheel 2 and a smaller gear-wheel 5 driven by an electric motor 8 through a shaft 9. In use, the pump 4 draws lubricant 10 from a reservoir 11 through a pipe 12 having a strainer-foot 20 and delivers it into a pipe 13 which supplies an annular channel 14 surrounding the set 1. The pump 4 supplies a quantity of lubricant which is in excess of that delivered to branches 15 by the set 1 and the inlet-pressure of the lubricant to the set is maintained constant by a valve 17 in a by-pass 16. The surplus lubricant may be returned to the reservoir 1 via a pipe 18. A lubricant-filter 19 may be incorporated in the pipe 13.
Patent GB-722528-A (GB)
Title: A hydraulic uniform loader for testing beams and slabs
IPC: G01N3/10
Filed: 1951-12-19
Abstract: 722,528. Testing physical properties. CASWELL, J. S. June 18, 1952 [Dec. 19, 1951], No. 29701/51. Class 106 (2). A device for applying a uniformly distributed load to beams or slabs comprises a rigid body having a plurality of through parallel bores constituting pressure fluid cylinders, each accommodating a pair of opposed pistons, a load exerting head on the outer end of each piston and located externally of the rigid body, and pressure fluid ducts interconnecting all the cylinders between the opposed inner ends of the pistons. Fig. 1 shows a test piece 1 supported at spaced points on bearers 2 of a compression testing machine. The bending-load is applied by the platen 3 through a part-spherical member 4 to a short girder 5, the lower edge of which acts on a cushioning strip 6 of hard rubber or ductile metal. The latter forms a bearing surface for a number of piston heads 7 which are attached to the outer ends of pistons 8, Fig. 6. Similar piston heads 7a on opposed pistons 8a bear on a lower bearing strip 6a which rests on a test-piece 1. Fluid-pressure is applied to interconnecting ducts 16 between pairs of opposed pistons, one pair of which are shown in Fig. 6, so that pressure fluid enters the space 9a provided between each pair of pistons. Fluid under pressure is applied via a conduit 23 and the conduit is then sealed off by a valve, not shown. Pressure is applied by the press member 3 and the fluid transmits the pressure evenly to the pistons bearing on the test-piece. In an alternative arrangement, the press members may remain stationary at a suitable spacing while pressure fluid is applied via the conduit 23 to expand the opposed piston and thus apply the load in two directions to two test-pieces on either side of the apparatus.
Patent GB-1140238-A (GB)
Title: Mastic compositions based on ethylene copolymers
IPC: C09J123/16
Filed: 1967-06-28
Abstract: 1,140,238. Olefin copolymer compositions. SOLVAY & CIE. 28 June, 1967 [13 July, 1966; 16 Jan., 1967; 2 March, 1967; 16 March, 1967], No. 29772/67. Heading C3P. Mastic compositions comprise an elastomeric copolymer of ethylene and propylene having an intrinsic viscosity of 0.1 to 0.6 l./g. in xylene at 120 C., filler material and a mineral or synthetic oil, optionally together with a drying oil. The oil may be an aliphatic, naphthenic or aromatic mineral oil, and the filler may be talc, chalk, kaolin, clay, carbon black and asbestos. The drying oil may be linseed, cod liver, tall or unsaturated mineral oil. The compositions may also comprise colophony, coumarone, terpene and phenol-aldehyde resins and, when non- hardening, a phenolic antioxidant. Small amounts of water and glycerol may be added to aid mixing. Examples describe mastic compositions comprising (1-19, 36 and 37) ethylene/propylene copolymers, mineral oil, and talc or chalk; (20-33) ethylene/propylene copolymers, mineral oil, linseed or cod liver oil and chalk; and mineral oil, kaolin and carbon black with (40 and 41) ethylene/propylene copolymers.
Patent GB-833891-A (GB)
Title: Improvements in electrically conducting glass units
IPC: H05B33/20
Filed: 1957-09-23
Abstract: <PICT:0833891/III/1> In an electrically conducting glass unit comprising a sheet of glass, a transparent electrically conducting film on a surface of the sheet and a low-melting coating of a fired-on glass frit, the glass frit contains 11% by weight or less of alkali and/or alkaline earth oxides and is in contacting relation to the conducting film.  The unit shown in Fig. 1, forming a windscreen, comprises a sheet of glass 10, electrodes 11 of a fired-on silver flux formed by 65.6% silver, 7.8% of the frit, 18% organic binder and 8.54% thinner, a thin film 18 of tin oxide applied by spraying stannic tetrachloride on to the hot glass, and a protective layer 19 of the glass frit applied by brushing or spraying, the unit then being refired.
Patent GB-617573-A (GB)
Title: Improvements in wheelbarrows
IPC: B62B1/24
Filed: 1946-10-07
Abstract: 617,573. Wheelbarrows. POPPLEWELL, R. A. Oct. 7, 1946, No. 29913. Convention date, Oct. 16, 1945. [Class 108 (i)] A wheelbarrow which has a removable body and which can be vibrated when tipping comprises a continuous length of channel iron 6 with wooden handles 7, a wheel 22 and sheet iron legs 24 braced together by a V-shaped stay, the apex of which is attached to a sheet iron plate 10 extending across the channels 6. A plate 30 at the apex of the frame form as foot when tipping and is perforated for slinging purposes. A body 11 is provided along each side with angles 12, the forward end on each side being slotted to take over a peg 14 projecting from the side of the frame and which forms the pivot when tipping the body, the rear upper flange of angles 12 being slotted to receive the T-head of a bolt 17, Fig. 3, projecting through angled holes 16 in the side frames 6. The rear corner of upper flange 12 is upturned to retain the head 18, and the shank of the bolt 17 may be surrounded by a spring 19 or may be fixed. The body 11 may be removed from the frame and replaced by an upstanding plate 32, Fig. 4, hooked over the pegs 14 when solid objects are to be carried. The legs 24 may be provided with castors 26 adjustable in holes 27, 28.
Patent GB-333443-A (GB)
Title: Improvements in centrifugal pumps
IPC: F04D7/04
Filed: 1929-10-02
Abstract: 333,443. Ash Co. (London), Ltd., (Allen, F. B.). Oct. 2, 1929. Casings.-A removable tongue 8 is arranged in the discharge pipe of a centrifugal pump to form a passage of any required size between its end 16 and the ends of the impeller blades. The tongue which is carried by an annular member 12 and is adjustable lengthwise of the throat, is curved in cross section as shown in Fig. 3 so that the surface 14 forms part of the circular opening in the discharge pipe. At its end 16, the tongue is concentric with the periphery of the impeller and is thickened at 18 to form a shoulder which bears against the casing. With the enclosed type of impeller the blades stop short of the edges of the disc to allow of the end 16 of the tongue to pass between the discs.
Patent GB-1192046-A (GB)
Title: Laboratory Reagent for Assay of Urea
IPC: C12Q1/527
Filed: 1967-06-28
Abstract: 1,192,046. Determination of urea. CALBIOCHEM. 28 June, 1967 [30 June, 1966], No. 29939/67. Heading B1X. A solid assay material for dissolving in water to provide a reagent for determining urea comprises alpha-ketoglutaric acid, urease, glutamic dehydrogenase, reduced diphosphopyridine nucleotide (DPNH), adenosine diphosphtate or its water soluble salt, a stabilizer and at least one buffer chosen from sodium or potassium phosphate, carbonate or bicarbonate, tris (hydroxymethyl) amino-methane, glycine. The stabilizer may be a sulfydryl compound, for example dithioerythritol, cysteine or glutathione, or sodium potassium tartrate, sodium sulphate, sodium tartrate, potassium sulphate or sodium glutamate. The assay material may include a bulking agent, for example mannitol or a polyhydric polymer. The enzymes in the form of pre-assayed; stabilized dry powders are mixed with the other components, and the product packed into single test capsules. The reactions used urease in the test are urea + water # 2NH 4 <SP>+</SP> + HCO 3 -DPNH + NH 4 <SP>+</SP> + alphaketoglutarate glutamate dehydrogenase # glutamate + DPN. The amount of DPNH converted to DPN is measured.
Patent GB-640953-A (GB)
Title: Improvements in loose leaf binders
IPC: B42F13/28
Filed: 1947-11-11
Abstract: 640,953. Loose-leaf binders. AKTIEBOLAGET GALCO. Nov. 11, 1947, No. 30036. Convention date, Sept. 30, 1941. [Class 146 (i)] In a loose-leaf binder comprising pivotally interconnected back portions 1, 2 and a locking device consisting of a lock-bridge 23, 24 on the back portion 1 and a pawl 11 on the back portion 2, the lock-bridge being bent to an angular section providing plate member 24 substantially perpendicular to the pawl 11 and having a recess 411 into which the pawl 11 enters on closure of the binder and the side edge of which forms a locking edge for the pawl which is movable towards and away from the locking edge, the recess 411 is extended at 41 from the plate member 24 into the other plate member 23 behind the locking edge. The lock-bridge 23, 24 and a bridge 22 for supporting the pawl 11 are secured to attachments 8 secured to the back portions 1, 2 which attachments carry the prongs 7 of the binder. The pawl 11 is pivotally mounted at 12 to the bridge 22 and is guided in a slot in a downwardly bent portion thereof. The back portions 1, 2 of the binder may also be longitudinally displaceable. The Specification as open to inspection under Sect. 91 comprises also a construction in which the recess is extended to the outer edge of the plate member 24, dividing it into two parts. This subject-matter does not appear in the Specification as accepted.
Patent GB-854495-A (GB)
Title: Fluid flow dividing valve
IPC: F15B13/02
Filed: 1958-09-19
Abstract: 854,495. Valves. BENDIX CORPORATION, [formerly BENDIX AVIATION CORPORATION]. Sept. 19, 1958 [Sept. 20, 1957], No. 30079/58. Class 135. A flow dividing valve, in which the flows from an inlet 22 to two motor ports 34, 36 are maintained equal irrespective of the pressures in the motor ports, comprises a twin landed spool valve B moved by pressure in end chambers 50, 52 to control motor ports 12, 16 and having restricted flow paths through it at 58, 62 and 60, 64 from an intermediate feed port 22 to the end chambers which change the direction of flow at 62, 64 to produce a reaction which rotates the spool to reduce friction between the spool and the walls of its chamber 10. The paths 58, 60 are bent at right angles to form throttling nozzles 62, 64 off the axis of the spool so as to produce a torque, the pressure drop across the nozzles being such that the spool is shifted to open one of the motor ports 12, 16 if the pressure in the adjacent end chamber increases so as to maintain the flow to the motor port having the increased pressure. The spool is balanced with respect to inlet and outlet pressures by having the annular grooves 24, 54, 56 and by having the motor ports 34, 36 each connected by a pair of angularly spaced passages 38, 42 leading to horizontal passages 26, 28 opening on diametrically opposite sides of the spool chamber 10.
Patent GB-831755-A (GB)
Title: Improvements in and relating to floating electric cables
IPC: B63B21/20
Filed: 1957-09-25
Abstract: Floats for a buoyant cable (see Group XXXVI) are made from thermoplastic or thermosetting resin moulded blanks of annular form, the resin powder being combined with a swelling agent which decomposes on heating and evolves gas which results in a finished float having a cellular structure and a hard and continuous surface. The resin may be p.v.c., the swelling agent a nitrogen-containing organic compound, and a hardening agent may be added.
Patent GB-1255318-A (GB)
Title: Reciprocating conveyor
Inventor: HALLSTROM OLOF ALFRED JR
IPC: B60P1/58
Filed: 1970-06-22
Abstract: 1,255,318. Reciprocating conveyers for loading vehicles. O. A. HALLSTROM Jnr. 22 June, 1970, No. 30148/70. Headings B8A and B8E. A reciprocating conveyer incorporated in a vehicle comprises groups of slats which reciprocate longitudinally. Each group consists of three slats 26, 28, 30, connected to transverse bars 42, 44, 46, respectively, the bars being reciprocated by a cylindrical cam 56 engaged by rollers followers 70 mounted on rods 50, 52, 54. The form of a cam groove 68 is such that for each group of slats two slats move simultaneously in the conveying direction while the other slat moves in the opposite direction, at a faster rate, due to the slope of the cam groove. To assist the retraction of the rods 50, 52, 54, coil springs 78 are provided. The cam 56 is driven by a power take-off shaft. Alternatively, a separate power source may be used. The spaces between the slats are covered by resilient strips 34 of metal, one being secured to each of the slats. The vehicle is loaded or unloaded according to the direction of drive of the cam 56, the conveying direction being that in which two of the group of three slats are simultaneously moved. There may be more than three slats in each group but more than half the number of the slats in a group must be moved simultaneously in the conveying direction. In place of the cam drive, hydraulic cylinder units or rack-andpinion assemblies may be used.
Patent GB-1072876-A (GB)
Title: Resolution of racemic amino acids
IPC: C12P13/04
Filed: 1965-07-15
Abstract: Racemic alpha-amino acids are resolved by dissolving alpha-N-acyl derivatives thereof in an aqueous medium, incubating the resulting solution in the presence of a mould acylase adsorbed in substantially water-insoluble form on an anion exchange polysaccharide adsorbent whereby the alpha-N-acyl-L-amino acid enantiomer is selectively hydrolysed to free alpha-L-amino acid which is then separated from the alpha - N - acyl - D - amino acid enantiomer which remains unchanged.  The above process may be adapted to passage through an ion exchange column.  The mould acylase may be derived from Aspergillus oryzae, meleus or nidulans or from Penicillium vinaceum or corymbiferum.  Specified N-acyl derivatives are N-acetyl and N,N1-diacetyl derivatives of alamine, valine, leucine, isoleucine, serine, threonine, cysteine, methanine, phenylalamine, tyrosine, aspartic acid, glutamic acid, lysine, orinthine, tryptophane, and histidine, and alpha - N - acetyl - epsilon - N - benzoyl - lysine.
Patent GB-1044425-A (GB)
Title: Regulated induction motor
IPC: H02P27/02
Filed: 1965-07-16
Abstract: 1,044,425. Automatic speed control. INTERNATIONAL STANDARD ELECTRIC CORPORATION. July 16, 1965 [July 17, 1964], No. 30313/65. Heading G3R. [Also in Division H2] The speed of a single or polyphase induction motor M having a resistive type rotor is controlled by a semi-conductor device arranged to adjust the mean value of the applied voltage. The semiconductor device may be one which can be switched on and off by a control signal, or one which can conduct in either direction at will, but as shown it is a thyristor 5 connected across a bridge rectifier 4 in the main winding circuit of a single phase motor. The control circuit comprises a capacitor 6 whose charging rate is determined by a variable impednace. This may comprise a temperature or light sensitive resistor, but as shown comprises a transistor 9, the conduction of which is determined by the difference between a voltage from a tachogenerator 10 and the breakdown voltage of a zener diode 12. The tachogenerator may be replaced by various devices which produce a voltage whose magnitude or frequency is proportional to speed, including (i) permanent magnets attached to the rotor co-operating with a fixed coil, switches in a separate D.C. circuit or a Hall generator, (ii) a separate stator winding producing an A.C. signal, (iii) a signal from the normal rotor winding via slip rings or (iv) the voltage across capacitor 2 in the phase winding circuit. The charge on capacitor 6 causes triggering of 5 via transistors 13, 14, but these can be replaced by a four layer diode or a unijunction transistor. As shown the control circuit is supplied by the voltage across thyristor 5, but in Fig. 2 (not shown) a separate transformer supply is provided. A reversible arrangement is illustrated in Fig. 4 (not shown), wherein a single phase motor has two identical windings, either of which is made the main winding with a capacitor inserted in the other according to which of two control circuits is energized.