baber/WOPTO huggingface dataset:
Patent GB-241157-A (GB)
Title: Improvements in bridges for upright and grand pianos
IPC: G10B3/06
Filed: 1925-05-06
Abstract: 241,157. Herrmann, A. Oct. 13, 1924, [Convention date]. Pianoforte bridges and soundboards. - To improve the tone, a pianoforte bridge is made in two parts b, c of the usual hard wood, separated by a preferably projecting board d of the same soft wood and thickness as the soundboard a. The part d acts as a preliminary soundboard.
Patent GB-734933-A (GB)
Title: Improvements relating to weighing balances
IPC: G01G23/04
Filed: 1952-05-09
Abstract: 734,933. Weighing apparatus. GREEN, S. R. April 7, 1953 [May 9, 1952], No. 11825/52. Class 143. In cam release means for a balance weighbeam the operative portion of the cam, extending from the lower end X of line XX to the upper end Y of line Y-Y, is provided with a surface a extending over about one half of its said operating surface to permit a very slow downward displacement of the weighbeam of about three thousandths of an inch in bringing its knife edges into contact with their respective planes, the carriage being then further lowered by the part AX to allow clearance for the weighbeam to operate. The a surface may be coaxial with an aperture 4 in the cam centred at 3, and the eccentricity of the surface a produced by a split sleeve 5 of varying thickness inserted between the circular aperture 4 and the circular cross-section shaft 7 centred at 8, with its maximum and minimum thickness along the axis Y-Y passing through one termination of the surface a so that the axis of rotation is now at 8 instead of 3. A screw 10 binds the sleeve to the shaft and to the cam 1. The sleeve 5 may have an end collar 9 engaging an end face of the cam.
Patent GB-965948-A (GB)
Title: Improvements in or relating to the manufacture of artificial staple fibres of regenerated cellulose from viscose
IPC: D01F11/02
Filed: 1962-03-28
Abstract: 965,948. Producing viscose rayon. ONDERZOEKINGSINSTITUUT RESEARCH N.V. March 28, 1962 [March 30, 1961; Feb. 14, 1962], No. 11838/62. Heading B5B. Staple fibres of regenerated cellulose are manufactured from viscose by xanthating soda cellulose with not more than 40% by weight of carbon bisulphide, based on the cellulose in the soda cellulose, dissolving the xanthated soda cellulose in aqueous sodium hydroxide solution to produce viscose, at least one hour prior to commencing the spinning process adding to the viscose a proportion of carbon bisulphide such that when the spinning is carried out, the viscose, in which the ratio of the percentage by weight of total alkali in the viscose, expressed as sodium hydroxide, to the percentage by weight of cellulose in the viscose, is greater than 0.65, has a gamma-number within the range 60 to 82 and a viscosity between 75 and 200 seconds at 20‹ C. determined by the falling ball method, spinning the viscose through a spinning nozzle into an aqueous spinning bath maintained at 15‹ to 30‹ C., and containing 5.3 to 7.5% by weight of sulphuric acid, 12 to 16% of sodium sulphate and 2 to 5% of zinc sulphate (in both eases calculated as the anhydrous salt), the percentage by weight of sulphuric acid in the bath being 0.5 to 1.0 higher than the percentage by weight of total alkali in the viscose expressed as sodium hydroxide. The freshly spun threads are stretched to such an extent that the percentage increase in the length of the threads (the length of the threads before stretching being regarded as 100) is within the range 110 to 162% and satisfies the expression: 2a - 5b - c + 100 Œ 3 in which a is the gamma-number of the viscose during the spinning process, b is the sum of the percentages of sodium sulphate and zinc sulphate in the spinning bath and c is the temperature of the spinning bath in ‹ C. The spun and stretched threads are thereafter cut into staple fibres. The filaments in the staple fibres before drying, while they are in a relaxed state, may be first treated at 60‹ to 100‹ C. with aqueous 1 to 4% sodium hydroxide solution, washed with water, treated with an aqueous solution of an acid and then rinsed with water. The addition of the carbon disulphide to the viscose may be effected by injecting the carbon disulphide into the viscose and subsequently mixing it with the viscose. The spinning nozzle may be provided with slot-shaped instead of circular extrusion orifices, the length of each slot being preferably from three to six times its width and the threads being drawn from the nozzle at a rate greater than the linear rate of extrusion of the viscose. The spinning bath may contain lauryl pyridinium chloride and may also contain an ethoxylated primary amine derived from coconut oil fatty acids and having the general formula in which (x + y) is 10 to 15 and R is an aliphatic radical having 8 to 34 carbon atoms.
Patent GB-216131-A (GB)
Title: A case for safety razor blades
IPC: B65D83/10
Filed: 1924-05-14
Abstract: 216,131. Wells, W. H. May 17, 1923, [Convention date]. Fittings, internal; contents, facilitating access to.-A case f for perforated safety razor blades comprises a plate a<1>, Fig. 1, having studs, pegs, or tongues b, c, d, which engage the holes in the blades, one or more of the studs, &c. being conical or sloping so that, when the blades are pushed in a longitudinal direction, the edge of the hole of the top blade rises up the sloping stud, &c., and the blade can thus be easily grasped by the hand and removed. As shown the studs b, c are conical and the blades are held in the studs by a small spring or lever c<1>; the plate has studs &c. on both sides and is hinged to the hinge f<1> of the case. The rising of the blades may be facilitated by arranging the two lower studs so that the lowest hole in the blades has more play on its stud than the middle hole on its stud. The plate may be in two parts hinged together opposite the case hinge so as to open out flat with both sets of blades uppermost. The plate a, Fig. 4, may be arranged in the top or bottom of a case for a stropping-apparatus or complete shaving-apparatus by a hinge or joint a<1>. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also an arrangement in which the studs are struck out from the material of the plate which may consist of two leaves fastened together and forming guides for the lower studs which are separate from the plate and slidably arranged between the leaves to secure the blades against movement when engaged thereon. This subject-matter does not appear in the Specification as accepted.
Patent GB-929509-A (GB)
Title: Improvements in die-casting and like machines
IPC: B29C45/67
Filed: 1961-04-04
Abstract: 929,509. Casting metals. SCHLOEMANN A.G. April 4, 1961 [April 28, 1960], No. 11941/61. Class 83 (1). [Also in Group V] A die casting or casting machine for metals comprises a stationary mould carrier plate 4, an hydraulically reciprocable mould-carrier plate 7 guided on fixed bars 6, and provided with anchoring rods 8, which, when the mould is closed, extend into the stationary plate 4 and are lockable to it, and one or more pressure pads 32 for the production of the final mould closing pressure, the bars 6 having piston-like parts 21 so that the bars 6 and rods 8 act as an hydraulic piston and cylinder system for reciprocation of the mould-carrier plate 7. The mould (not shown) is constructed in two parts fitted to the plates 4, 7 and the mould may be fed from an injection cylinder 2. Four rods 8 and bars 6 are provided, the ends of the rods 8 being sealed by stuffing-boxes 20, so that to close the mould to the position shown in Fig. 1, fluid under pressure is supplied to the space 22, preferably through ducts in the bars 6. The rods 8 then extend into yokes 34 bolted to the plate 4, and are locked to the plate 4 by movement of pairs of clamping jaws 10, 11, Fig. 2, to engage in annular grooves 9, Fig. 1, in the ends of the rods 8. The clamping jaws 10, 11 are actuated by hydraulic cylinders 14, Fig. 2, through piston-rods 15, 16 and connecting rods 17, whose length is adjustable by the use of turnbuckles 18. Fluid under pressure is then supplied to the pressure pads 32 causing a plate 33 and the locked jaws 10, 11 to move to the right in Fig. 1 to effect the final closing pressure on the mould. To open the mould the pressure is released on the pressure pads 32, so that springs 37 return the jaws 10, 11 to the position shown in Fig. 1, where they are disengaged from the rods 8, fluid under pressure then being supplied to spaces 23. A high pressure pump may be interposed in the fluid supply line to the spaces 23 to overcome any tendency of the mould parts to stick together. The plate 7 may be adjusted on the rods 8 by the use of screw threads 24 and nuts 25, which are rotatable in the plate 7 by means of a chain 28 and chain-wheels 27 fixed to the nuts 25, the chain 28 being driven by a pinion on the shaft of an electric motor 29. The nuts 25 are held in place by rings 26, and rotation of the rods 8 is prevented by blocks 31 sliding in grooves 30 in the rods 8. Specification 796,523 is referred to.
Patent GB-833537-A (GB)
Title: Mechanism for controlling gaseous flow in machines such as turbines and compressors
IPC: F04D27/02
Filed: 1957-04-12
Abstract: 833,537. Blades for turbines, compressors and fans. HOLSET ENGINEERING CO. Ltd. April 12, 1957 [Aug. 30, 1956], No. 12002/57. Classes 110 (1) and 110 (3). In a rotary bladed machine through which a gaseous fluid flows, such as an axial- or radialflow turbine or compressor, at least a part of each stator vane or blade is formed of two or more metals having different coefficients of thermal expansion which are rigidly connected together so that changes of temperature of the gaseous fluid will cause a change in the shape of the vane or blade. The assembly shown in Fig. 1 is either the inlet nozzle guide vane assembly of an inward radial flow turbine or the diffuser guide vane assembly of a centrifugal type compressor and comprises two end walls 1, 2 with vanes 3 secured therebetween. The vane 3 in Fig. 3 has the radially inner portion 7 formed of bi-metallic construction, lugs 5 being provided to enable the vane to be secured between end walls 1 and 2 with clearance therebetween. In Fig. 4 both the radially inner end 7 and the radially outer end 8 of the vane are of bi-metallic construction, whereas in Fig. 5 the whole of the vane is of bi-metallic construction, this vane having fixing lugs 9. Various constructions of vanes of aerofoil section profile embodying bi-metallic portions are described. In one, the trailing edge portion is of bi-metallic construction, whereas in others the leading and trailing edge portions, the mid-chord portion and the whole profile respectively are of bi-metallic construction. In Fig. 12 the blade comprises a concave wall portion 3b and a convex wall portion 3a of different metals joined together at their leading and trailing edges 19, securing pins 18 being fixed to the inner surface of the concave portion 3b. In Fig. 13 concave and convex wall portions 3b, 3a respectively are secured together at the trailing edge 22 and to a solid leading edge portion 14 at 21, mounting pins 18a being formed on the portion 14.
Patent GB-1483271-A (GB)
Title: Pigment complexes
IPC: C09B45/00
Filed: 1975-03-22
Abstract: 1483271 Metal complex azo pigments CIBA GEIGY AG 11 March 1976 [22 March 1975] 12062/75 Heading C4P The invention comprises tridentate metal complexes having the formula wherein A is an optionally substituted aryl or heterocyclic residue; R<SP>1</SP> is an optionally substituted aryl residue, any substituents on A or R<SP>1</SP> being non-water-solubilizing groups; X is O, S or CO 2 ; p is 1 or 2; when p is I, C is hydrogen attached to A; when p is 2, C is a direct link between two A residues or an alkyl. ene, arylene or aralkylene radical linking two A residues, and M is a transition metal of the first transition series. They may be prepared by metallizing a compound having the formula where R is hydrogen or alkyl. The compounds of Formula III may be prepared by coupling the diazo compound of an amine of formula with a compound of formula The complexes of Formula I are pigments which give shades of blue, red, violet and brown and may be used for the mass coloration of polymers and for the coloration of paints, lacquers and inks.
Patent GB-1003635-A (GB)
Title: Improvements in or relating to methods of coating electrical components, including connecting wires, with a layer of synthetic substance
IPC: H01B13/14
Filed: 1964-03-23
Abstract: Electrical components having connecting wires are coated with plastics material by first applying a liquid, which by surface tension shrinks in air over the component and envelops the connecting wires along a small distance adjacent to the component, then applying a powdered plastics material and heating until the liquid evaporates and the plastic coalesces and hardens. The powdered plastic may be polyethylene, polyvinyl chloride, epoxy resin, silicon/epoxy resin, chlorinated polyether, polyamide, or cellulose ester and may contain plasticizers, e.g. p-toluene-sulphonamide or tricresylphosphate.  The first-applied liquid may be water, toluene, methylethyl ketone, butyl acetate, butanol, cyclohexanol, glycol, glycol ethers and mixtures thereof and may contain a wetting agent.  Examples are given of coating capacitors and resistors.
Patent GB-1388112-A (GB)
Title: Voltage multiplier circuit arrangements
IPC: H02M7/10
Filed: 1971-04-29
Abstract: 1388112 Voltage-multiplying rectifiers D C ADAMS 27 April 1972 [29 April 1971] 12209/71 Heading H2F A voltage-multiplying circuit structure comprises a series of plates 10<SP>1</SP> ... 10<SP>5</SP> of electrically insulating material each provided with two physically separate conductive areas, said areas being provided with a plurality of apertures for receiving the connector elements of parallelconnected capacitors, the effective capacitance of each stage being preferably graded with the smallest value adjacent the high voltage output end. The plates 10 may be of glass and have metalized areas 11, 12 at each end and on one or both sides. The capacitors C1 ... C6 may be provided with screwed rod or similar rigid connection terminals at each end, such terminals being passed through appropriate ones of the holes 13 in the mounting plates 10. Rectifying diodes D1 ... D6 are included. If the capacitance C6 in the stage at the high voltage end is C then the effective capacitance of the other stages may be 2C, 3C, 4C ... or 2C, 4C, 8C .... The multiplier may be supplied by a transformer connected to the mains or to an oscillator.
Patent GB-1127708-A (GB)
Title: Improvements relating to vacuum-casting
IPC: B22D27/15
Filed: 1966-03-21
Abstract: 1,127,708. Moulds. GENERAL ELECTRIC CO. 21 March, 1966 [10 June, 1965], No. 12264/66. Heading B3F. A mould assembly 10 for vacuum casting a plurality of metal parts comprises separable reusable members 12 disposed in verticallystocked relationship, adjacent members having recesses 14 formed therein which co-operate when assembled to define mould cavities 16 corresponding to the shape of the parts to be cast. The members 12 are held in the assembled position within a lower cylindrical mould portion 25 by a top member wihch is formed integrally with a molten metal reservoir 22 and which threadably engages at 26 the lower portion of the mould body. In operation the mould cavities are evacuated and a solid metal charge placed in the reservoir is melted by induction means 32, the molten metal running through gates 20 in all but the bottom mould part to fill the mould cavities 16. The gates 20 are necked at 40 to form a point of weakness between the finished casting whereat separation of the casting and the mould parts is effected by breaking. Alternative forms of mould member 12 are described, Fig. 4 (not shown), wherein the mould members are formed as symmetrical discs separated by spacerrings ( 12a ). To effect evacuation of the mould, the whole assembly is enclosed in a chamber which is evacuated. Cooling of the mould and castings therein is effected by cooling the mould bottom 27 so as to produce an upward and axial cooling effect. The mould parts are made from graphite.
Patent GB-289414-A (GB)
Title: Improvements in or relating to the treatment of substances containing unsaturated carbon compounds for the purpose of modifying the physical properties thereof
Filed: 1928-04-26
Abstract: 289,414. Auer, L. April 26, 1927, [Convention date]. Sulphuretted fats and oils.-The products obtained by heating natural and synthetic products containing unsaturated carbon compounds, such as fatty or mineral oils, with a metal, a metal oxide or hydroxide, or an organic base are subsequently subjected to a sulphurizing treatment, which may be carried out under heat or in the cold and if desired in moulds under pressure. The sulphur or sulphur chloride employed may be used in solution respectively in carbon bisulphide or white spirit or the solvent may be added separately to the reaction mixture. Accelerators such as hexamethylenetetramine, aniline, or diphenylguanidine may be added. Plastic materials may be obtained by the addition of fillers. In examples :-Castor oil is boiled under reduced pressure with metallic calcium until the latter is dissolved and the evolution of hydrogen has ceased. After cooling, the reaction mass is heated to 140‹ C., mixed with iron oxide, aniline, and sulphur, and further heated at 160‹ C., the product being moulded under pressure: and rosin is heated with stannic oxide until absorbed by the latter, and white spirit and sulphur chloride are added to the cooled mass. A varnish-like material is obtained by dissolving the product in a mixture of turpentine and petrol. Specification 4918/8S, [Class 140, Waterproof &c. fabrics], is referred to.
Patent GB-677671-A (GB)
Title: Improvements in machines for excavating ditches or the like
IPC: E02F3/18
Filed: 1950-05-18
Abstract: 677,671. Trench excavators. SCHOLANDER, H. May 18, 1950. [May 18, 1949] No. 12440/50. Class 68 (i). In a machine for excavating ditches, of the type in which a wheel 10 is rotatably mounted on a frame 14 that is pivotally supported from a tractor 54, the wheel comprises a. hub 20 from which extends radially outwards to two axially spaced annular members 16 curved partitions'18 and to the annular members are' secured outwardly projecting buckets 22, the number of such buckets being in excess of the number of the partitions. Rigidly secured to the frame, so as to form lateral bounding walls to the compartments formed in the wheel by the partitions, are two plates 28. A plate element 34, the radial contour of which conforms to that of one of the compartments 26 of the wheel whilst the peripheral dimension of the element is smaller that that of the compartment, is reciprocatingly mounted on the frame and is caused by a crank connection 46 to move, through a suitable aperture in one of the plates, laterally into and out of each compartment as it passes by the aperture so as to eject at the far side of the wheel the earth collected in the compartment from the buckets. The movement of the element is so synchronised with the rotation of the wheel that the plate element does not touch the partitions of the compartment.
Patent GB-1023451-A (GB)
Title: Improvements relating to releasable connectors
Inventor: HARLEY FRANK BERNARD
IPC: A44B11/25
Filed: 1961-04-06
Abstract: 1,023,451. Latch fastenings. HARLEY PATENTS (INTERNATIONAL) Ltd. March 19, 1962 [April 6, 1961], No. 12485/61. Headings E2A and E2B. A releasable connector, such as for use on a safety strap in a vehicle or aircraft, comprises two plates 10, 12 which are engaged together by means of a stud 18, or other projection to resist linear tension and are clamped against disengagement by a lever 15 pivoted on lugs 13 bent up from the lower plate 12 and having a cam surface 23 which positively clamps by being moved past a dead centre, and upon release by the lever 15 a horse shoe shaped spring 25, riveted at points 26 to the plate 12, throws the plates out of engagement. Three different embodiments are described with reference to Figs. 3 to 9, inclusive, (not shown), one of which includes spring loaded transverse plungers in the locking bar which engage apertures in lugs 13 in the locked position. The adjustment and tightening of the strap passing through each plate 11, 12 is effected by means of a sliding bar 29 made from sheet metal and having ears 30 overlying top and bottom surfaces of the buckle.
Patent GB-768826-A (GB)
Title: A sound-absorbing unit
Inventor: SLAYTER GAMES
IPC: E04B1/84
Filed: 1955-04-29
Abstract: 768,826. Facing tiles. OWENS-CORNING FIBERGLASS CORPORATION. April 29, 1955, No. 12505/55. Class 87(1) A sound-absorbing tile comprises a bonded glass fibre body 11 to the exposed face 14 and edges of which a synthetic resin membrane 13 is secured in taut condition by adhesive 16 applied only to the edges 18. The body 11 is bevelled at 17 on its exposed face, and recessed at 20 and grooved at 19 on its rear face.
Patent GB-600081-A (GB)
Title: Improvements in and relating to cleaners for compressed air arranged for automatic draining
IPC: F16T1/24
Filed: 1945-05-18
Abstract: 600,081. Steam traps. AIR-EQUIPEMENT. May 18,1945, No. 12516. Convention date, Aug. 10, 1943. [Class 64(ii)] A compressed air cleaner for automatic draining of the liquid separated in which the draining port co-operates with a closing valve, the opening of which is generated responsive to the slight over-pressure generated in the cleaner casing when its outlet port is closed by a valve controlled by a lifting body immersed in the liquid, is characterised in that said closing valve is urged to a position closing said draining port by a pressure responsive member subjected to the pressure prevailing in an auxiliary enclosure communicating with the interior of the cleaner casing through a port (for example the air outlet port of the cleaner) which can be closed by a valve controlled by the control lifting body. The cleaner comprises a separator vessel 1 provided with a liquid particle separator 3 and a drainage port 4 closable by a valve 5 operated by a plunger in conjunction with a membrane 12. The compressed air enters at port 2 and exits through conduits 13, 14 a by-pass 23 being provided. Compressed air flows through inlet port 2, raising the pressure inside body 1 and enclosure 13, and membrane 12 since its area is larger than that of drainage port 4 applies valve 5 against its seat and membrane 31 is compressed to lift plunger 30 off lifting body 27. Valve 18 of equal sectional area to membrane 21 is held closed by spring 19, and air cleaned by separator 3 of known construction leaves through non - return valve 16. The combined thrusts of collected liquid and spring 28 gradually lift body 27 until the air outlet port 14 is closed by valve 29. The resulting pressure increase in body 1, duct 23, and chamber 22 is not sufficient to open valve 5 due to the greater area of membrane 12 than port 4, but valve 18 is opened by membrane 21 to provide communication between enclosure 13 and the atmosphere, the drop in pressure in enclosure 13 then being sufficient to allow draining valve 5 to open. When draining is complete air escapes through port 4, the pressure falls in casing 1 and spring 33 then elongates membrane 31 to push down body 27 to open valve 29 and equalise the pressures in enclosures 1 and 13 so that the drainage valve 5 is closed by the action of membrane 12. Simultaneously equalisation of pressure in chamber 22 and enclosure 13 permits spring 19 to close valve 18. In a modification, lever 8 may have unequal arms and membrane 12 have equal area to port 4. Port 14 may also be made separate from the air outlet of the cleaner, its closing valve still being operated by member 27.
Patent GB-125172-A (GB)
IPC: A23C11/04
Abstract: 125,172. Stevens, C. S., and Baumann, C. A. Aug. 3, 1917. Emulsions, making.-In a process for making a liquid condensed milk food, a fat or oil and skim milk are intimately and permanently emul. sified together by means of a jet of steam moving within and bodily through the fat and skim milk mass for commingling therewith.