baber/WOPTO huggingface dataset:
Patent GB-566378-A (GB)
Title: Improvements relating to rope and like materials of regenerated cellulose
IPC: D07B7/12
Filed: 1941-03-26
Abstract: Ropes and like textile materials, such as twines and cords, having a basis of filaments or fibres of regenerated cellulose are impregnated with a water-resistant ester or ether of cellulose. The impregnating composition may comprise solvents and softeners or plasticizers.  The treatment improves the wet tenacity, handle and compactness of the ropes or the like and renders them substantially waterproof.  The cellulose derivative is preferably applied in non-aqueous solution at an elevated temperature.  In an example, a rope of regenerated cellulose yarns of tenacity 3-6 grams per denier made by stretching cellulose acetate yarns in steam and completely saponifying the stretched yarns, is impregnated with a solution comprising ethyl cellulose, castor oil, xylene and butanol.  Instead of treating the rope itself, the treatment may be applied to yarns, strands, or cords of high tenacity regenerated cellulose before these are laid up to form a rope.  The treatment may be applied to staple fibre yarns in the course of their conversion into rope.  The regenerated cellulose filaments or fibres may be associated with cotton, linen, jute, ramie, hemp, silk, wool, cellulose ester or ether, polyvinyl ester or ether, or polyamide fibres.  The water-resistant cellulose derivative with which the ropes are treated may be ethyl, propyl, benzyl, hexyl, or other cellulose ether, or cellulose propionate, butyrate, palmitate, stearate, laurate, or other cellulose ester. As softener or plasticizer there may be used castor, olive, palm, or other vegetable oil, or a mineral oil, or tri-(monochlor butyl) phosphate, or dimethyl phthalate.
Patent GB-342634-A (GB)
Title: Treatment of rubber
IPC: C08K5/3437
Filed: 1930-06-06
Abstract: Meso-substituted acridines are prepared by reacting a diarylamine having at least one free o-position in each aryl residue, with a carboxylic acid other than formic acid, in the presence of a dehydrating agent.  Suitable amines are diphenyl-, phenyl-a -naphthyl-, phenyl-b -naphthyl-, and dinaphthyl-amines; while acids specified are acetic, butyric, isobutyric, palmitic, stearic, phenyl-acetic, salicylic acids, their anhydrides or acid chlorides. An example is given of the preparation of methyl acridine, using zinc chloride as the dehydrating agent.ALSO:The deterioration of rubber is retarded by treatment of a meso-substituted acridine having the general formula <FORM:0342634/V/1> in which R is any organic radical, and R1, R11, are orthoarylene radicals.  These substances may be prepared by reacting a secondary aromatic amine in which at least one of the C atoms in each of the aromatic residues, ortho to the N, is bound to hydrogen, with a carboxylic acid other than formic acid, in the presence of a dehydrating agent.  Suitable amines are diphenyl, phenyl naphthyl, phenyl b  naphthyl, and dinaphthyl amine, while acids specified are acetic, butyric, isobutyric, palmitic, stearic, phenyl-acetic, salicylic acids, their anhydrides or acid chlorides. Examples are given of the preparation of methyl acridine, and of the antiaging qualities conferred on rubber by their use.
Patent GB-470528-A (GB)
Title: Improvements in aircraft
IPC: B64C3/38
Filed: 1936-06-25
Abstract: 470,528. Modifying the aerodynamic characteristics of aerofoils. BUDIG, F. June 25, 1936, No. 17633. [Class 4] An aircraft wing has a step of adjustable depth disposed on its under surface a short distance only from its leading edge and substantially in the plane of separation of the two fluid streams passing over the top and bottom surface of the wing, Fig. 4, and tapering away to the apex of the leading edge. A nested flap 6, Fig. 3, is pivotally mounted at a point 5 which lies at or adjacent to the point at which the positive pressure curve in the lower surface meets the negative pressure curve on the leading edge and upper surface when the aerofoil is at 20‹ incidence. Flap 6 is operated by a lever 7 connected by a link 9 to a fore and aft rocking lever 8 of which the rear end is adapted to engage a lever 14 fixed to a flap 12. Lever 8 is urged into the flap closed position by a spring 11 and in arrangement is such that flap 12 is allowed limited movement in either direction without causing movement of flap 6. Means may be provided for intermittently producing a flow of air through flap 12 to dissipate eddies formed on its upper sides. In one form, Fig. 5, this comprises a rotary valve 15 disposed in a through passage 16 and operated by power means and in another form, Fig. 6, passage 16 is opened and closed by a spring-loaded flap valve 17 actuated by air impulses fed into port 19.
Patent GB-1493427-A (GB)
Title: Method for recovery of refined alpha-galactosidase
IPC: C12N9/40
Filed: 1975-04-28
Abstract: 1493427 Purifying α-galactosidase HOKKAIDA SUGAR CO Ltd 28 April 1975 [2 May 1974] 17635/75 Heading C3H Refined α-galactosidase is recovered from a liquid by contact with an acidic cation-exchange resin having COOH groups in the presence of a buffer solution thereby causing the α-galactosidase in the liquid to be adsorbed by the resin, desorbing the adsorbed α-galactosidase from the solution by use of a buffer solution of which at least one of the factors concentration and pH value, is higher than that of the buffer solution used in the adsorption, and recovering the desorbed α-galactosidase in the liquid discharged from the resin. Examples describe the adsorption of α-galactosidase on a resin column buffered to pH 4À5 with 0À1M phosphate. Subsequently 0À2M phosphate buffer solution (pH 9À2) eluted α-galactosidase of greater activity.
Patent GB-1494084-A (GB)
Title: Pipe adaptors
IPC: F16L47/24
Filed: 1974-04-23
Abstract: 1494084 Pipe joint BRITISH GAS CORP 23 April 1975 [23 April 1974] 17679/74 Heading F2G An adaptor suitable for connection of a plastics pipe 8 to a fitting within a metal meter box 9 comprises a body 1 having at respective ends a tapered screw thread 2 and pipe connector A, B, and further including an intermediate parallel screw-threaded portion 3 receivable into a meter body to abut an adjacent flange 6 having spanner flats. Preferably the body is secured within the meter box via locking nut 4 on fibre washer 5. The end connection is preferably of the type known per se A, B, wherein a plastics pipe 8 is receivable on to a serrated tubular portion 10 and locked and sealed by the action of bore nut 13 on a deformable member 12 and wedge 11.
Patent GB-930340-A (GB)
Title: A self-excited thermoelectronic energy converter
IPC: H01J45/00
Filed: 1961-05-15
Abstract: 930,340. Thermionic engines. SIEMENSSCHUCKERTWERKE A.G. May 15, 1961 [May 14, 1960], No. 17694/61. Class 39 (1). A device for converting heat directly into alternating electrical energy comprises a transformer 5, Fig. 1, connected between a heated electron emitter 1 and a cooler collector 4, and means for applying to a grid 3 an alternating driving voltage obtained from transformer 5, and possibly also a direct voltage. As shown in Fig. 2, the emitter 11, which is annular with projections 16 and may contain fissionable material, is situated between two grid rings 13 and two anode plates 14 which form part of the envelope 12 which may be evacuated or may contain caesium vapour. A permanent magnet 15 produces a field parallel to the desired electron paths and prevents electrons from reaching the grid. Alternatively the grid may comprise two plates 33, Fig. 4, arranged outside perforated collector plates 34 on either side of annular emitter 31, a magnet 35 providing a transverse field in the neighbourhood of the grid plates to deflect electrons to the collectors 34. In a further arrangement, a two-part grid 23, Fig. 3, is provided between emitter 22 and cylindrical collector 24 and an axial magnetic field is provided. If electromagnets are used they may be fed with rectified current obtained from the output of the device.
Patent GB-703911-A (GB)
Title: Alloy of iron, nickel and molybdenum
Inventor: SUCCOP JOHN AUGUST
IPC: C22C38/12
Filed: 1950-07-17
Abstract: An alloy steel comprises C .05-.80 per cent., Mn .20-1.20 per cent., Si .10-1-50 per cent., Ni 2.00-5.00 per cent. and Mo 2.00-4.50 per cent., with or without V .10-1.0 per cent., the remainder being Fe. The cast alloy is heated to 2050 DEG -2150 DEG F., hot forged or hot rolled and cooled; the metal forms are then heated to 1800-1900 DEG F. and quenched to 200 DEG F. in water, oil or air.  The alloy may be tempered at 1050-1100 DEG F. or may be stress relieved after quenching at 400-600 DEG F. and air cooling.  The alloy may be used for working hot metal such as in press and hammer discs, pipe moulds or for hot metal shearing knives.
Patent GB-404359-A (GB)
Title: Improvements in or relating to devices for holding electrodes for electric arc welding
IPC: B23K9/28
Filed: 1933-06-22
Abstract: 404,359. Holders for arc-welding electrodes. NAAMLOOZE VENNOOTSCHAP MACHINERIEEN-EN APPARATEN FABRIEKEN, 30, Croeselaan, Utrecht, Holland. June 22, 1933, No. 17854. Convention date, July 15, 1932. [Class 39 (iii).] The holder comprises a head 5 with an oval or wedge shaped base for receiving the electrode 3 and removably inserted and retained in a tube 7 containing a projecting pin 9 which may be moved axially by a lever 11a to grip the electrode and transmit current thereto. The tube 7 is provided with an extension forming a handle and a flange 16 to which is secured a shield 15. The head is secured to the tube by a staple 8.
Patent GB-902734-A (GB)
Title: An open railway goods wagon
IPC: B61D7/12
Filed: 1959-05-26
Abstract: 902,734. Railway tip wagons. TALBOT, R. May 26, 1959 [Dec. 4, 1958; Feb. 26, 1959], No. 17862/59. Class 103(4). In a railway open goods wagon having a flat bottom the wagon body has at least one side door and comprises two parts 4, 5, Fig. 1, tippable towards the middle of the wagon, by means of hydraulically operated pistons or the like 7, about a common transverse axis 6, or separate transverse axes, a discharge aperture being provided in the wagon under-chassis in the middle of the wagon. The tipping axis or axes may be at the top edge or edges of the wagon parts or between the top and bottom edges of the parts. A pair of swing doors 8 is provided on each part 4, 5. Material from the tipped parts may be discharged on to a conveyer disposed beneath the discharge aperture which may have adjustable shoots whereby delivery may be effected between the rails or to the side of the track. In the case of body parts tipping on separate axes, a single door 8 is provided on each part. In another embodiment the parts 4, 5 each have a toothed segment cooperating with a toothed rack on the chassis. Each body part may have two tipping axes and may discharge on to a vibrating conveyer.
Patent GB-530159-A (GB)
Title: Improvements in or relating to steam generators, hot water boilers or heaters
IPC: F22B21/30
Filed: 1939-06-19
Abstract: 530,159. Heating steam boilers by waste gases. ELDERTON, A. J. June 19, 1939, No. 17871. [Class 123 (ii)] The flow of heating gases over U-shaped boiler tubes C enclosing a byepass flue tube D is controlled by interconnected dampers E, G, Fig. 1, the pivoted damper E controlling the flow through 'the byepass tube and the slidings damper G 'controlling the flow from the tube space around the tube to the exit N. The byepass tube R, Fig. 3, is adapted to be slid between a fixed baffle T and the inner end of the exit X. Specification 244,931, [Class 123 (ii)], is referred to.
Patent GB-145660-A (GB)
Title: Improvements in or relating to rotary brushes
IPC: A46B13/00
Filed: 1920-06-30
Abstract: 145,660. Hoover Suction Sweeper Co., (Assignees of Hoover, H. E.). Oct. 9, 1916, [Convention date]. Carpet-sweepers. - A vacuumcleaner brush comprises a body having flanges projecting outwardly beyond its ends and a guard flange surrounding and overhanging these brush flanges. Fig. 2 shows a brush contained within a suction casing A and comprising a hollow body B with enlarged ends into which are inserted bearing sleeves E through which passes a shaft D. In each end of the shaft is a cup-shaped threadguard F through perforations in which and in the sides of the casing air is drawn. The guard may be screwed on the shaft, and overhangs a flange C<1> on the end of the brush body which is further formed with a groove C<2> wherein threads &c. may be accommodated. The bristles are received within radially recessed bosses cast or otherwise formed on the brush body.
Patent GB-902045-A (GB)
Title: Improvements relating to racks and cases and chassis mountings for use therewith
Inventor: HUMBLE FRANCIS EDWARD
IPC: H05K7/16
Filed: 1960-05-20
Abstract: 902,045. Rack-mounted electrical equipment. IMHOF Ltd., ALFRED. May 17, 1961 [May 20, 1960], No. 17968/60. Class 37. An adjustable mounting comprises a pair of telescopic runners between which a support member, e.g. a chassis, is pivotably mounted and a pawl-and-ratchet mechanism located on one side of the support member which serves normally to hold it so as to prevent rotation. An equipment cabinet is provided with telescopic runners 1, between a pair of which a chassis 5 may be mounted for movement into or out of the cabinet. The chassis 5 is pivotably mounted between the runners by means of a rivet 11 which passes through a ratchet-wheel 6 attached to the chassis into a hole 13 in the runner. A pawl 14 is mounted on the runner and is biased into engagement with the ratchetwheel 6 by a spring 20 to restrain rotation. The chassis may be thus locked into any angular position. Preferably mechanisms are provided on each side of the chassis, being so arranged that their ratchet members operate in opposite directions so that one pawl will lock the chassis against movement in one direction when the other is released to adjust the chassis in the opposite direction. If only one mechanism is used, a catch, e.g. a spring pressed pin may be provided to lock the chassis in its normal position. Alternatively, the pawl may be mounted on the chassis, and the ratchet on the runner. In such an arrangement, according to the Provisional Specification, the ratchet may be in the form of an annulus with either internal or external notches. The pawls may be operated remotely by means of pull and push rods.
Patent GB-380525-A (GB)
Title: Full fashioned knitting machine
IPC: D04B15/64
Filed: 1931-06-22
Abstract: 380,525. Knitting-machines. TEXTILE MACHINE WORKS, ANKE, R., 223, Penn Street, both in Reading, and RICHTER, M., 333, South 3rd Street, West Reading, both in Pennsylvania, U.S.A. June 22, 1931, No. 18015. [Class 74 (ii).] A straight-bar full-fashioned machine is provided with pattern-controlled means for frictionally connecting any carrier-rod 5 to a common operating-rod 8, and for determining the traverse of the selected rod 5. A connecting or clutch device A, Fig. 8, is provided for each rod 5, and comprises a gear wheel 10 engaging teeth 9 upon the rod 8, and a gear wheel 11 engaging teeth 7 on a rod 5. The wheels 10, 11 are connected by plates 20 and a flanged brake drum 19, the drum 19 containing an expanding ring 21 which is expanded to drive the gear 11 by a wedge 23 upon axial movement of a shaft 24. Each clutch device A is supported in fixed position upon the machine. Each shaft 24 is moved axially by a forked lever 27 which is controlled by pins arranged in predetermined manner upon a pattern chain. The chain is intermittently progressed by ratchet-and-pawl mechanism, and one of the pins may be provided for rendering the pawl inoperative. Hand-operated means may be provided for restarting the pattern chain, and a hand-lever 30 may be provided for engaging or disengaging any rod 5 from the rod 8. To vary the traverse of a rod 5 a series of stop plates 100, each having a stepped edge 101 for engaging stops 102 on the carrier-rods 5 is provided. The plates 100 are controlled so that any one may be positioned in the path of a rod 5, by pins 116 of a pattern chain 115 acting through levers 111, 107. The chain 115 is of such width as to embrace levers 111 corresponding to each of the plates 100, and is driven by a drum 117 actuated by pawl-and-ratchet mechanismfrom a cam 135 on the main cam shaft 78. A handactuated rod 138 may be provided for manually rocking the drum 117. The stop devices 100 are preferably arranged in two groups, each group limiting the rod traverse in one direction only, and separate similar pattern mechanism is provided for each group. Means may be provided for effecting a delayed additional feed of a stopped rod for forming a split seam suture loop.
Patent GB-482731-A (GB)
Title: Improvements in the production of synthetic resins and the manufacture of films or sheets therefrom
IPC: C08F8/28
Filed: 1936-06-29
Abstract: Polyvinyl acetal resins containing 12 to 15 per cent of hydroxyl groups (calculated as polyvinyl alcohol) and at least 10 per cent of ester groups (calculated as polyvinyl ester) are prepared by treating a partially hydrolyzed polyvinyl ester, e.g. polyvinyl acetate, in the presence of a mineral acid catalyst with acetaldehyde under conditions such that acetalysis is not complete.  Completion may be prevented by using less than the stoichiometrical quantity of aldehyde or by using excess of water.  A polyvinyl ester may be used as starting material and the reaction carried out in the presence of a de-esterifying agent, e.g. water or alcohol, with or without additional solvents, e.g. ethyl acetate or acetone; and the reaction may be carried out under reflux or in a closed vessel, e.g. at 70 DEG C.  Suitable catalysts are sulphuric, hydrochloric, or phosphoric acids.  The hydroxyl group content of the resins is determined by suspending a sample in pyridine, warming for an hour with a known excess of acetic anhydride, adding water, and titrating the acetic acid produced.  The ester group content is determined by suspending a sample in pyridine, warming with a known excess of caustic soda, and titrating.  The resins may be made into films by coating a solution of the resin in a solvent, e.g. methyl alcohol with or without acetone, methyl acetate, or both, on to a glass or metal plate or a revolving drum, evaporating, stripping, and curing by heating with warm air.  The following examples (in which the parts are by weight) are given.  (1) 1300 Parts of polyvinyl acetate and 266,4 parts of paracetaldehyde were dissolved in ethyl alcohol and ethyl acetate and heated for 12 hours at 70 DEG  C. in the presence of sulphuric acid. The reaction mixture was then neutralized with ammonium hydroxide precipitated by water and washed.  The hydroxyl group content was 13,6 per cent and the acetate content 20,2 per cent.  (2) As in (1) but using larger quantities of reactants in the same relative proportions.  The hydroxyl group content was 13,5 per cent and the acetate content 20 per cent.  (3) As in (1), but using double quantities.  The hydroxyl group content was 12,6 per cent and the acetate group content 21,25 per cent.  Specifications 351,082* and 477,446 are referred to.
Patent GB-353630-A (GB)
IPC: H04J1/04
Filed: 1930-06-12
Abstract: 353,630. Wired wireless signalling. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. June 12, 1930, No, 18103. Convention date, July 26, 1929. [Class 40 (v).] In a two-way carrier telephone, signalling system using differing frequency bands for the two directions the bands consist of sidebands of carrier frequencies which lie between the bands. A singlecarrier frequency may be used with the upper sideband for one direction and the lower sideband for the other direction. Common amplifiers V may be used at the intermediate repeaters with separate filters O, U, Fig. 3, or separate amplifiers may be used, Fig. 4, Phase compensation is preferably introduced at points where the channels are separate but attenuation may be equalized at the intermediate or terminal amplifiers. To prevent crosstalk the same frequency is used for both directions in adjacent lines and in a quad circuit the side circuits are used for the carrier signalling. Specifications 291,110 and 335,108, [both in Class 40 (v), Wireless signalling &c.], are referred to.
Patent GB-841792-A (GB)
Title: Thermonuclear reactor
IPC: H05H1/02
Filed: 1958-06-06
Abstract: 841,792. Nuclear fission reactors. UNITED STATES ATOMIC ENERGY COMMISSION. June 6, 1958 [June 26, 1957], No. 18103/58. Class 39(4). A thermonuclear reactor comprises means for creating a plasma and focusing it into a high density disc shape having elongated azimuthal ion paths, and means for compressing the plasma disc and producing turbulence to increase ion collisions and raise the temperature. The reactor shown in Fig. 2 comprises top and bottom walls 31, 32 provided with insulating liners 38, 39 and joined to a cylindrical outer wall 33, the walls 31, 32 being contiguous to magnetic pole pieces 12, 13. The reaction chamber is bounded by a cylindrical wall 37 sealed in a gas-tight manner to the liners 38, 39 and is provided with a central electrode 42 which also serves as an inlet for gas via a passage 47 in wall 31 and an exhaust for gas via passage 44 in wall 32. The cylindrical wall 37 of the reaction chamber is connected to the inner conductors 52 of a plurality of coaxial cables, the outer conductors of which are connected to the wall 33 and thus to the central electrode 42. In operation the reaction chamber is evacuated and then filled with gas at a desired pressure, and electrical pulses are applied across the chamber by means of the coaxial cables. The pulses produce radial discharges and form a self-pinched disc-shaped plasma. The magnetic field from the poles 12, 13 causes the plasma trajectory to be circular and causes some turbulence in the plasma ; the plasma is partly stabilised by pulse return current passing through the walls 31, 32. The walls 31, 32 may be provided with a non- magnetic section so that the plasma expands in this part and contracts subsequently.
Patent GB-899319-A (GB)
Title: Binder for oven-drying foundry mould and core sands
Inventor: MAGERS WERNER
IPC: B22C1/24
Filed: 1960-05-23
Abstract: 899,319. Mould and core materials. KERNUND FORMTECHNIK G.m.b.H. May 23, 1960, No. 18114/60. Class 83 (1). A binder for foundry sands consists of, by weight 50-75% of tall oil pitch, 25-50% of conjugated acid oil, such as tung or oiticica oil, and 0.03-0.5% of metal salt, which may be iron salts present as impurities in the tall oil pitch. The binder may be diluted with up to its burn weight of turpentine or petroleum, and be emulsified in sulphite liquor.
Patent GB-910254-A (GB)
Title: Improvements in or relating to devices for the treatment of foundry sand
Inventor: BEECH AUSTIN SIDNEY
IPC: B22C5/04
Filed: 1960-05-23
Abstract: 910,254. Treating mould and core materials. FOUNDRY EQUIPMENT Ltd. Aug. 23, 1961 [May 23, 1960], No. 18123/60. Class 83 (1). Apparatus for loosening and aerating foundry sand comprises a casing 15 overlying a conveyer 11 which carries sand through the casing, agitator paddle blades 31 within the casing which throws the sand forwardly and upwardly in the direction of conveyer movement, and baffles 48 between the paddle blades and the outlet end of the casing to catch the sand and drop it back on the conveyer. The baffles are of sheet rubber, and the top of the casing is of sheet rubber tensioned by means 44. Specification 865,428 is referred to.