baber/WOPTO huggingface dataset:
Patent GB-318959-A (GB)
IPC: C08G12/12
Filed: 1929-02-04
Abstract: 318,959. Bakelite Ges. Sept. 13, 1928, [Convention date]. Addition to 305,211. Urea-aldehyde condensation products.-In the production of resinous condensation products from urea or its derivatives and solid polymerized formaldehyde such as paraformaldehyde as described in the parent Specification, the progress of the condensation mav be retarded or accelerated by adding suitable contact agents of acid, neutral, or alkaline character. For retarding the reaction, ammonia, calcium hydroxide, hexamethylene tetramine and alkaline salts such as sodium carbonate are mentioned, and for accelerating the reaction acids or acid salts such as citric, acetic, and hydrochloric acids, and urea nitrate. In an example, urea, paraformaldehyde, lithopone, sawdust, and citric acid are ground together. Specification 281,993 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) is not limited to formaldehyde and contains examples in which urea, paraformaldehyde, lithopone, paper pulp and calcium hydroxide are ground together and hot pressed; (2) glycerin ester of phthalic acid is fused and mixed with lithopone, sawdust, urea, paraformaldehyde, and urea nitrate. The products are hot pressed. This subject-matter does not appear in the Specification as accepted.
Patent GB-1355284-A (GB)
Title: Apparatus for separating superimposed flexible sheet materials
IPC: G03B27/24
Filed: 1972-01-26
Abstract: 1355284 Delivering sheets MITA INDUSTRIAL CO Ltd 26 Jan 1972 [27 Jan 1971] 3779/72 Heading B8R A pair of superimposed sheets such as those issuing from a copying machine are separated by passage between a driven roller 4 and more rapidly driven roller 1. The leading edges of the sheets are initially engaged by a recess 11  in a hook-like member 6 mounted loosely on the shaft of roller 1. As the member 6 is carried around the periphery of roller 1 by the sheets, the slower moving sheet 21 (engaged by the slower moving roller 4) slips out of the recess 11. The sheet 20 continues in the recess 11 until engaged by a roller 17 whereupon the member 6 returns to its initial position. In a further embodiment, Fig. 8(a), a curved guide 39 may precede the nip 3 between the rollers 1 and 4. This guide causes the leading edge of the upper sheet 20 to be slightly in advance of that of the lower sheet 21 when the sheets commence to pass around the roller 1.
Patent GB-657718-A (GB)
Title: Movable device for driving piles and the like
IPC: E02D7/20
Filed: 1948-02-11
Abstract: 657,718. Driving piles. COMPAGNIE INTERNATIONALE DES PIEUX ARMES FRANKIGNOUL SOC. ANON. Feb. 11, 1949, No. 3788. [Class 68 (ii)] A pile driver includes a pair of beams extending transversely of the platform and projecting beyond the side of the platform, the beams being spaced apart by a distance greater than the thickness of the pile. The beams serve as a track for the jack &c. and are operatively connected to four parallel guides. In the form shown in Fig. 3 the beams 13, carrying the carriage 14 of the jack &c. 16 which acts on the pile 17, are carried by longitudinal girders 12 which carry nuts 10 that traverse four vertical screw guide rods 9. In Fig. 4 the girders 12 traverse the guides 30 and are provided with pulleys 36, 40 around which pass cables 32, 37 respectively, connected to winch drums 34, 39. The cable 32 also passes round pulleys 35 carried by stationary cross-members 31, whilst the cable 37 also passes round pulleys 43 carried by the platform.
Patent GB-848260-A (GB)
Title: Methods for improving the physical and mechanical properties of plastic foams
IPC: B29C44/12
Filed: 1958-02-05
Abstract: <PICT:0848260/IV(a)/1> <PICT:0848260/IV(a)/2> A cellular polyurethane structure with glass elements uniformly distributed throughout the structure is characterised in that the glass elements have a thickness less than 150 ten-thousandths of an inch and a length and width greater than 1/64 inch with a substantial amount of the glass elements encompassed within the cell walls, said cellular structure having increased strength, rigidity and improved compressive characteristics by comparison with a cellular plastic of the same composition without the glass elements.  It also comprises such a polyurethane structure in which the glass elements are in the form of glass fibres having a diameter less than 150 ten-thousandths of an inch and lengths within the range of 1/64 to 1/4 inch, or in the form of a fabric.  Such structures can be prepared by foaming and curing the polyurethane with the glass elements distributed therein.  When the glass elements are in the form of a fabric, one or more fabrics are introduced into a confined space, the polyurethane foaming constituents are introduced into the space in amounts sufficient to fill the space on cellulation and the polyurethane is foamed while being advanced to a set stage whereby the resin penetrates through and fills the interstices of the textile fabric of glass fibres substantially completely to encompass the fabric within the cellulated plastic.  The glass may have a preliminary treatment with dextrinised starch and incompatible oil, unsaturated organosilicon compounds such as vinyl trichlorosilane, unsaturated Werner compounds, such as methacrylate chromic chloride, polyvinyl alcohol, polyacrylic acids, gelatine and other proteins, polyacrylamides and ethylene diamine polymers.  In examples (1) glass fibres of 35 ten-thousandths of an inch in diameter and length 1/8 to 1/32 inch, sized with dextrinised starch and oil, are damped with water, mixed with a polyester-di-isocyanate liquid mixture in a confined space and heated at 250 DEG -300 DEG  F to give a body 12 (Fig. 1) containing voids 10 and fibres 14 and 16 ; (3) glass fibres in the form of a fabric 20 (Fig. 2) have a resin foamed in the space which they occupy to embed the fabric within the body 22 of the foamed plastic.  The glass fibres can be used in the form of mats or packs, which are wetted with the resin which is then foamed.  Structural panels are thereby formed.
Patent GB-698166-A (GB)
Title: Improvements in or relating to the preparation of mineral mud packings for therapeutical use
IPC: A61F7/02
Filed: 1952-02-13
Abstract: In preparing a packing mass for a poultice, mineral mud, preferably fango or slime, is mixed with paraffin having a melting point-between 50 and 68 DEG  C. and, while heated, the mass is further mixed with inorganic compounds which do not separate out, such as magnesium oxide, magnesium carbonate, or kieselguhr.  In a preferred mixture one part by weight of fango is heated with two parts of paraffin having a melting point between 56 and 58 DEG  C. and between 8 and 15 per cent by weight of magnesium oxide are added.
Patent GB-365351-A (GB)
Title: Power transmitting shaft couplings
IPC: F16D3/62
Filed: 1931-02-06
Abstract: 365,351. Universal joints. LESSER, H., 4, K÷nigstrasse, Eichwalde, near Berlin. Feb. 6, 1931, No. 3861. [Class 80 (ii).] A universal joint comprises several wire rope lengths f stretched between the ends of shaft elements a, band having their ends secured, as by soldering, in sleeves e mounted resilientlv or otherwise in blocks d rigidly secured, as by bolts c, to the shaft elements. The sleeves e may carry tensioning nuts g as shown in Fig. 1, or they may screw directly into the blocks. Alternatively the inner end of the sleeve may rest on a shoulder in the block d, a rubber or leather washer being interposed to increase the flexibility of the joint. The shoulder is slotted to receive the wire rope f. In a modification of this form, the aperture in the block d is enlarged at its outer end to receive a nut carried by the sleeve e, a rubber ring being interposed between this nut and an inner shoulder in the block. The resilient mount may comprise a split expansible conical metal ring s, Fig. 6, between a sleeve r on the wire rope and an aperture in the block. A lubricant-retaining cover v is provided. As shown in Fig. 1, the longitudinal axes of the wire ropes f do not intersect but they may be caused to do so by juxtaposition of the apertures in the blocks d.
Patent GB-1504291-A (GB)
Title: Ultra-violet curing
IPC: B41F23/04
Filed: 1975-04-14
Abstract: 1504291 Drying ink BEASLEY FRENCH & CO Ltd 14 April 1975 [28 Jan 1974] 03868/74 Heading B6C [Also in Divisions F4 and H5] An ultra-violet irradiation apparatus for drying ink on printed material 13 comprises an elongate array of tubular ultra-violet lamps 22 in a housing through which the material is conveyed, the length of the array extending over the full width of the material 13 and the individual lamps 22 being substantially shorter than the length of the array and extending in a direction at least partially transverse to that length. Curved or planar reflectors can be provided behind the lamps 22. The lamps 22 can extend between ducts 26 through which cooling air is forced. Fig. 1 (not shown) illustrates the apparatus installed in an otherwise conventional sheet-fed printing machine.
Patent GB-976553-A (GB)
Title: Process for the manufacture of linear quinacridone in the gamma crystal modification
IPC: C09B48/00
Filed: 1961-02-01
Abstract: Linear quinacridone in the gamma crystal modification is made by heating an aqueous paste of finely divided crude quinacridone with an inert organic compound at a temperature between 80 DEG  and 200 DEG C. without removing the water, the inert organic compound being stable and solid or liquid under the reaction conditions used, hydrocarbons and their halogen and nitro derivatives being excluded. The process is conducted with stirring and if necessary in an autoclave.  Organic compounds specified are methanol, ethanol, propanol, isopropanol, butanol, glycerol, ethylene glycol, ethylene glycol monomethyl ether, diethylene glycol monoethyl ether, acetone, dioxan, dimethylformamide, N-methylacetamide, butyrolactone, acetic acid, propionic acid, benzoic acid, p-toluene sulphonic acid, p-toluene sulphonamide, phenol, triethanolamine, aniline, quinoline, pyridine, N-methylpyrrolidone methyl ethyl ketone and tetramethylene sulphone.  The pigment colours polyvinyl chloride and other plastic masses, printing inks, lacquers and paints. Specifications 828,052, 868,360, 940,779 and 940,780 also are referred to.
Patent GB-545398-A (GB)
Title: Safeguarding means for machines for breaking-up, opening, feeding or working cotton waste or other fibrous materials
IPC: D01B3/02
Filed: 1941-03-22
Abstract: 545,398. Magnetic separators. GREENWOOD, H. S. March 22, 1941, No..3922. [Class 72] In means for safeguarding and preventing fires in machines or apparatus for opening, breaking-up, feeding or mixing or dealing with textile materials the latter are caused to pass over poles of a rank or ranks of abutting high coercive magnets of short limbed or U-shape and made from a magnetized alloy, the magnets being arranged with like poles adjacent and in one or more ranks of abutting magnets. In one form, Fig. 1, the fibrous material is fed and delivered down a shoot A having on the end a. plate 1 hinged at 2 and provided with angle iron strips 3, to which are secured angle strips 4, 4, short limbed or U-shaped magnets m being affixed by bolts m' to a bar 5 extending between the strips 4, 4. Another series of magnets m is secured in the lower part of the wall 6 of the shoot A and the treated material then falls on to the conveyer and is removed. In a second form, one rank or series of magnets mare mounted in a shoot mounted between two conveyers and in a third form two series of magnets are mounted one above the other and at an angle to each other in a trunk fed by a lattice, a further rank of magnets being mounted in the bottom of the trunk near the entrance to a suction pipe. In another form, a series of magnets are arranged at the delivery end of a hardwaste breaker and in a further form a series of magnets may be arranged in a hopper provided at the bottom with an elevating screw or conveyer. The magnets may be mounted on a plate which can be turned or rotated so that the magnetic material can be removed therefrom. Reference has been directed by the Comptroller to Specifications 9718/07, [Class 117], and 519,170.
Patent GB-1530241-A (GB)
Title: Carburettors comprising an accelerator pump
IPC: F02M7/08
Filed: 1977-02-01
Abstract: 1530241 Carburetters with accelerator pumps SOC INDUSTRIELLE DE BREVETS ET D'ETUDES 1 Feb 1977 [18 Feb 1976] 04039/77 Heading F1H In order to prevent fuel vapour forming within an accelerator pump chamber 9 of a carburetter, an auxiliary pump 34 is provided to circulate fuel to the carburetter's float chamber 6 (or to a fuel tank supplying the float chamber 6) at least during idling and part-load running of the engine supplied by the carburetter. The pump may be a diaphragm pump 34 operated by vacuum tapped from the engine intake pipe and applied to a control chamber 35. Atmospheric air is intermittently introduced into the control chamber 35 by a ballvalve 46 to effect the pumping action. The ballvalve 46 can be replaced by a slide valve (63 not shown).
Patent GB-843035-A (GB)
Title: Storage vessel for liquefied gases
Inventor: HOWLETT REX RICHARD
IPC: F17C13/08
Filed: 1958-02-07
Abstract: 843,035. Storing liquefied gases. BRITISH OXYGEN ENGINEERING Ltd. Feb. 5, 1959 [Feb. 7, 1958 (2)], Nos. 4064/58 and 4065/58. Class 8(2). The outer shell 12, Fig. 1, of a double-walled vacuum-insulated liquefied gas container comprises two or more connected portions e.g. near hemispheres 15, 16 welded to a circumferential ring 14 within which is supported by two oppositely acting groups of tension members e.g. rods 17 and clamping rings 20, 21 the inner shell 10 and all the fittings within the vacuum space normally connected to the outer shell, e.g. the filling and emptying union 27, 28, Fig. 2, the vent union and pipe 24, 25 and vacuum connection 31<SP>1</SP> which fittings are carried by only one portion of the shell e.g., the ring 14. As shown the centre portion 18 of each of three equally spaced tension rods 17 is secured to a corresponding bracket 19 carried by the ring 14 and carry adjusting nuts at opposite ends where they pass through the clamping rings 20, 21. A socket 30 on the ring 14 provides for supply of current to an electric heater to effect revaporization of the stored gas. In a modification the outer shell comprises two hemispheres 32, 33, Fig. 3, welded together; the lower hemisphere carrying the emptying and filling union 43 and pipe 42, the vent pipe 40 and vacuum connection. The inner shell 31 is mounted eccentrically by three pairs of tension rods, 34 pivoted at adjacent ends to brackets 35 secured to the hemisphere 33 and one adjustably secured at their other ends to brackets 37, 38 carried by the inner shell. In a further modification, similar to Fig. 3, the outer ends of the tension rods are secured to clamping rings 46, 47, Fig. 4 (not shown).
Patent GB-197405-A (GB)
Title: Improvements in or relating to receiving arrangements for electromagnetic waves
IPC: H03D7/08
Filed: 1922-02-11
Abstract: 197,405. Kinman, T. H. Feb. 11, 1922. Thermionic heterodyne receivers.-A self-heterodyne detector valve is arranged to produce supersonic resultant oscillations or beats, and the circuits are designed to render the self-oscillation frequency independent of the received frequency. As shown in Fig. 1, the aerial is coupled to an oscillatory circuit 11, 12 tuned to the incoming frequency and connected between the grid and filament of the valve, 6. A circuit 13, 14 tuned to the local frequency is connacted to the valve anode and is coupled to a coil 7 in the grid circuit. Supersonic resultant occillations, which may be of higher frequency than the local oscillations, are transferred for amplification and reception by the coupling 8, 15. The inductance 11 is preferably of low value and the capacity 12 high. In a modification the circuit 11, 12 is omitted and the aerial is coupled to the coil 7. The anode coil 8 may be connected in the anode circuit in parallel with the coil 13. The tuned mode circuit 13, 14 may be replaced by a variometer, and the valve may oscillate without external reaction coupling. In the circuit shown in Fig. 2, the grid coupling-coil 7 is arranged in parallel with the aerial inductance. Specifications 137,271 and 162,097 are referred to.
Patent GB-537391-A (GB)
Title: Improved router cutter
IPC: B23C5/10
Filed: 1940-03-05
Abstract: 537,391. Milling-cutters. HARRISON, L. D. March 5, 1940, No. 4114. [Class 83 (iii)] A routing-cutter has two or more flutes 3 and one or more cutting- edges 2 and non-cutting edges 2a the latter being notched or serrated at 4 so as to break up the chips from the cutting-edge or edges. The end of the cutter may have outer end-cutting edges 7 and the teeth are preferably provided on an enlarged head of the shank 1.
Patent GB-725689-A (GB)
Title: Magnetic switch
IPC: H03K17/81
Filed: 1953-02-13
Abstract: 725,689. Saturable reactors; electric selectors. RADIO CORPORATION OF AMERICA. Feb. 13, 1953 [March 8, 1952], No. 4134/53. Class 40 (4). [Also in Group XIX] A magnetic switch comprises a number of saturable reactors with individual outlets, one of the outlets being energized according to the combination of input circuits energized. Several embodiments are described. Eight toroidal cores 10, Fig. 1, carry windings 12, 14 in the plate circuits of three pairs of tubes 42A, 42B, 44A, 44B, 46A, 46B, the windings 12, 14 being arranged to magnetize in the N and P directions, respectively. The cores are restored after each operation to an N saturation by windings 18 in the circuit of tube 38. By energizing one of each pair of tubes 42, 44, 46 according to the binary code one of the cores has three of its windings driving in the P sense and turns over to produce a pulse in its output winding 16. To eliminate unwanted output signals in the unselected cores an element 56, Fig. 4, of the type used in Fig. 1 is supplemented by a ring 58 of low permeability and having a B-H of negative type (Fig. 5, not shown). In a modification (Fig. 6, not shown) the N windings in the plate circuits are omitted but the N restoring windings are energised all the time. Fig. 7, which is schematic, shows all the driving coils 102 series-connected to an additional set of windings 118 driving in the opposite sense, while the restoring windings 106 drive in the same sense as the driving windings. In Fig. 9 the cores 160 carrying the output coils 200 are driven by intermediate driving cores 162A-168B driven and restored in the above-described manner. In Fig. 11 the driving tubes are arranged in double pairs 254A, 254B, the screen grids of one or other pair in each set being biased by the combinational code signals and the control grids of one in each pair being connected in common to a source of P or N pulses, respectively. A P pulse operates the device and an N pulse restores it. In Fig. 12 (not shown) tubes drive one driver core in each pair to condition P. In Fig. 13 (not shown) one tube provides a common P drive for three of the six cores and tubes drive the same three cores in direction N and the other three cores in direction P. A restore tube drives all cores to condition N. In Fig. 14 (not shown) one tube is provided for each pair of driver cores. A cross-bar type of switch is shown in Fig. 15. Cores 360 respond to turnover in X and Y driver cores 10. Reading-out may be effected by a coil coupled to each element 350 in the matrix. A selected core remains in turned-over condition if the driver units are restored one after the other but is restored if the driver units are restored simultaneously. Translation from the binary to the decimal code may be effected by the arrangement of Fig. 16 (not shown).
Patent GB-765316-A (GB)
Title: Improvements in or relating to a combined screen and storm sash construction
Inventor: HAUCK THEODORE
IPC: E06B3/44
Filed: 1955-02-11
Abstract: 765,316. Catch fastenings. GENERAL BRONZE CORPORATION. Feb. 11, 1955, No. 4165/55. Class 44. [Also in Group X] An auxiliary window frame has at least three sash receiving channels, e.g. 10, 11 and 12, at the inner face of each jamb, the channels in the jambs being arranged opposite each other in pairs, a sash 15, 17 and 18<SP>1</SP> mounted in and movable vertically in each pair of channels, a movable locking and latching member 31 secured to the inner face of a jamb of the frame and having a sash-engaging portion extending into the paths of movement of all the sashes, notches 20, 23 and 26 in the faces of the side edges of all of the sashes with which the sash-engaging portion is engageable and carn surfaces 27, 29 on one of the notches for moving the sashengaging portion out of the notches. Sashes 15 and 17 are storm sashes and sash 181 is a screen sash and each is substantially half as long vertically as the distance between the header and sill of the auxiliary frame. When the sashes 15 and 17 are raised as far as they will go in the frame they are locked in position by the member 31 since the notches 20, 23 in these sashes have each a horizontal face 21, 24 which engage the upper face 32 of the sashengaging portion of the member 31 which is also substantially horizontally positioned. The notch 26 in the sash 18<SP>1</SP> has two inclined faces, the uppermost of which forms the cam surface 27 and the ash is light enough to be held frictionally by the pressure of the member 31 in the notch, but when the sash is pulled down the surface 27 forces back the member 31 and when it engages the cam surface 29 above the notch the sashes 15 and 17 can also be moved. The lower face 33 of the sash-engaging portion is inclined so that the member 31 can be forced to its unlocking position when the sash 18<SP>1</SP> is raised by engagement with the cam surface 29. The member 31 is resilient and is riveted to the inner face of a vertical jamb and protrudes through an opening 30 in a member 9 which carries the channels 10, 11 and 12. A shoulder 341 is formed on the member 31 and this contacts the lower edge 35 of the opening 30 to support the three sashes and prevent the rivets taking the strain. The channels 10, 11 and 12, the member 31 and the notches 20, 23 and 26 are provided on both vertical sides of the window.