baber/WOPTO huggingface dataset:
Patent GB-947317-A (GB)
Title: Improvements in and relating to cores for dynamo-electric and other machines
IPC: H02K1/16
Filed: 1960-07-11
Abstract: 947,317. Core constructions. GENERAL ELECTRIC CO. July 11, 1960 [July 10, 1959], No. 24130/60. Heading H2A. A magnetic core is assembled by stacking circular or segmented laminations 20 between deformable flange rings 28 (Figs. 10, 11), e.g. of trapezoidal cross-section, applying pressure to the laminations and flange rings, thus deforming the latter, welding or otherwise connecting straps 30 (Fig. 12), between them, and releasing the pressure. Straps 30 fit loosely in grooves along the outer periphery of the stack. Space blocks 26 may be arranged between the end flanges and laminations, and between groups of laminations for ventilation. Springs 38 may also be incorporated between flange rings 28 and space blocks 26, with the provision of additional flange rings 39 to act as spring seatings, if necessary. Alternatively, the flange ring itself may be constructed as a spring (Fig. 13, not shown). In a second embodiment (Fig. 5), axial bars 46 with rings 48 attached to their ends are disposed around the outer periphery of the core 40. After compression of the core and deformation of the flange rings 44 stop blocks 50 are slotted into grooves in the bars and may be welded in position. In a further embodiment the straps are wedged firmly into the slots which are deeper than the thickness of the straps. The laminations are insulated from one another by a non-shrinking insulating material.
Patent GB-699488-A (GB)
Title: Improvements in dollhead bearings for drying cylinders
IPC: F26B13/14
Filed: 1951-10-17
Abstract: 699,488. Bearings. SWINDELLS, F. N. Oct. 15, 1952 [Oct. 17, 1951], No. 24179/51. Class 12 (i). A dollhead bearing for steam-heated drying cylinders of calendering or other textile machines comprises a bush B of compressed fabric impregnated with a non-greasy non-oily lubricant and provided with longitudinal grooves b and an annular space b<SP>1</SP> formed by chamfering the end of the bush, and a cylinder C<SP>1</SP> having a hollow shaft C supported in the bush. Steam from the inlet passage a passes through the shaft to the cylinder, and also through the grooves b in the bush to a header D and a U-shaped packing-ring E to form a steamtight joint.
Patent GB-1475129-A (GB)
Title: Building panels
IPC: E04C2/32
Filed: 1974-05-31
Abstract: 1475129 Domes INTERNATIONAL CANADOME Ltd 31 May 1974 [8 June 1973] 24202/74 Heading E1W A building panel comprises a symmetrical quadrilateral modular plate which is folded along two lines symmetrically spaced on each side of a diagonal 2 of symmetry to form a central valley 3 and two triangular portions 4 lying in intersecting planes, said plate also having an extension portion 5 at each end of said diagonal which is bent from the plane of the central valley in a direction away from the triangular portions 4 to define acute angles relative to the valley. The panels are adapted to overlap to prevent ingress of rain. The plate may be bent to provide reinforcing ribs 20 and additionally bent along lines 7, (10), Fig. 1 not shown to form a ridge plane 8, a flange 9 and extension ridge planes 11. The plates may be made of aluminium, plastics or steel and may have the central valley defined by the folded diagonals 2 modified to be of greater width in the centre and may be transversely curved so as to be convex in the direction in which the triangular portions are bent, the extensions being similarly curved.
Patent GB-188447-A (GB)
Title: Improvements in or relating to the sealing of electrical conductors in glass or the like
IPC: H01K1/38
Filed: 1921-09-13
Abstract: 188,447. Cameron, H. G., and Metropolitan-Vickers Electrical Co., Ltd. Sept. 13, 1921. Leading-in uires. - In electric incandescent lamps and other vacuum and like tubes the ends of the seal wires 6 are connected to the leading-in wires 8 at a point some distance from their ends, and the ends of the wires 8 are embedded in the seal 4 to obtain a firm support therein while the joints between the wires 6, 8 lie either outside of the seal, as shown in Fig. 3, or at the surface of the seal, or only just within the seal as shown in Fig. 2. The wires 6 may be single as shown in Fig. 2, or double as shown in Fig. 3, and may be connected to the wires 8 by welding, or by being threaded through holes therein, or otherwise. Heat conductors may be similarly sealed in glass &c.
Patent GB-1511893-A (GB)
Title: X-ray image recording and reproduction systems
IPC: A61B6/00
Filed: 1975-06-06
Abstract: 1511893 Radiography SIEMENS AG 6 June 1975 [31 July 1974] 24355/75 Heading H5R An electrographic radiography system includes a chamber 3 containing an inert gas at a minimum pressure of 10 atmospheres and having optically transparent electrodes 4 and 6, a transparent window 8 and a transparent electrode support 7, the electrode 6 being arranged to be heated in use so that a thermoplastic recording layer 5, on which a charge image is formed by ions generated by X- rays and directed by a field between electrodes 4 and 6, will be deformed in accordance with the charge image. The deformed layer can then be used in a Schlieren or phase-contrast system 11 to give a visual image. The thermoplastic layer can be given a uniform charge by a corona discharge prior to exposure. The deformation of the recording layer can be erased by further heating. The inert gas can be xenon at 15 atmospheres. During exposure a voltage of about 1 kV is applied between electrodes 4 and 6 and during heating a field of 100 V/micron increases the sensitivity. The image is said to be improved by giving the recording layer a latticelike deformation prior to exposure.
Patent GB-399009-A (GB)
Title: A method of treating artificial caoutchouc preparatory to mixing and vulcanising with natural caoutchouc
Filed: 1932-09-01
Abstract: Artificial caoutchouc is freed from unstable chlorine by treatment with water or steam at ordinary or raised pressure in presence of hydroxides, carbonates, or other substances neutralizing hydrochloric acid.  Mixtures of the product with natural caoutchouc are then readily vulcanized in presence of accelerators.  For example, 1000 kg. of sulphurized oil is well damped with water, 30 kg. of chalk are added, and the whole steamed at 3 atmospheres for 2,5 hours; the water is drained off and the caoutchouc dried.  70 kg. of the product mixed with 100 kg. of rubber, 50 kg. of lithopone, 30 kg. of zinc-white, 4 kg. of sulphur, and 0,5 kg. of accelerator, vulcanizes well at 145 DEG  C. in 15-20 minutes.ALSO:Artificial caoutchouc is freed from unstable chlorine by treatment with water or steam at ordinary or raised pressure in presence of hydroxides, carbonates or other substances neutralizing hydrochloric acid.  Mixtures of the product with p  natural caoutchouc are then readily vulcanized in presence of accelerators.  For example, 1000 kg. of sulphurized oil is well damped with water, 30 kg. of chalk are added, and the whole steamed at 3 atmos. for 2-5 hr.; the water is drained off and the caoutchouc dried, 70 k.g. of the product mixed with 100 kg. of rubber, 50 kg. of lithopone, 30 kg. of zinc-white, 4 kg. of sulphur and 0,5 kg. of accelerator, vulcanizes well at 145 DEG  C. in 15 min.
Patent GB-1335560-A (GB)
Title: Sintered glass powder preforms
IPC: H01K3/20
Filed: 1970-10-05
Abstract: 1335560 Glass powder preforms COMPAGNIE INDUSTRIELLE FRANCAISE DES TUBES ELECTRONIQUES 5 Oct 1970 [6 Oct 1969] 24453/73 Divided out of 1335559 Heading C1M A sintered glass powder preform in which at least one part, but not all, of the glass powder is coloured, is made by mixing with a binder, compressing in a mould and sintering. As in Fig. 4, a hollow cylinder is formed by compressing a mixture of one glass (a) and binder in a cavity (C 1 ), formed round a core 22 in a base 21 with a hollow cylinder 23, by a die 26 fitting over core 22, to form a part 1 of the preform, the resultant cavity C 2  is then filled with glass powder b and binder and pressed by the die 26 to form the two part preform which is then sintered. Either glass a or b may be the coloured glass. As in Fig. 8, the preform has a main part 8 of colourless glass and zones 10 and 14 of coloured glass. The two glasses used have the same coefficient of thermal linear expansion. The preforms are used to secure glass, ceramic or metal parts to the coloured glass by IR radiation as in Specification 1,335,559.
Patent GB-1470538-A (GB)
Title: Polyamines
IPC: C07D265/08
Filed: 1974-06-03
Abstract: New linear, unbranched polymer materials which have in their basic structure repeating units of the formula <IMAGE> where the radicals R1, R2, R3, R4 and also @ m, Q and Z are each as defined in formula I of Claim 1, are prepared from a starting polymer material of the formula <IMAGE> where @, R1, R2 and Q are each as defined in formula II of Claim 1, which is reacted with a compound which introduces the radicals R3 and R4 by the method of N-alkylation. These polymers are useful as antimicrobial agents, flocculants, electroconductive agents for paper coating processes, antistats, chelating agents and bile acid binders; they can also be used as components for changing the electric conductivity.
Patent GB-830183-A (GB)
Title: Improvements in or relating to methods and apparatus for the concentration of ores
IPC: B03B5/24
Filed: 1957-08-02
Abstract: 830,183. Washing granular materials. KRAUT, M. Aug. 2, 1957 [Aug. 3, 1956], No. 24597/57. Class 82(2) A method of concentrating fine mineral particles comprises adding a slurry of fine ore to a body of slurry below an apertured screen, imparting slow upward and rapid downward movement to the slurry, opening the apertures in the screen during the upward movement and partially closing them during the downward movement, the mineral particles during downward movement being given sufficient kinetic energy to overcome the slow upward movement of the slurry, and discharging the fine mineral particles together with the large gangue particles. As shown, slurry is added to a tank 13 through a hopper 16 and a shoot 18 below a screen 19. A hutch 26 is given a slow upward movement and a rapid downward movement by a motor 11, a check valve 61 preventing flow of liquid into the hutch during the downward stroke. The screen may comprise a plurality of square holes in which are seated balls 39 (Fig. 4) of such specific gravity that the slow upward movement is sufficient to raise them while the rapid downward movement returns them to their seats and allows the slurry to pass through restricted openings so imparting a high kinetic energy to the fine heavy particles of mineral. The openings in the screen may be round and cubic blocks used to form the restricted openings. In a modification, Fig. 8 (not shown), square openings situated at the smaller end of a truncated square cone with balls to form the restricted openings may be positioned under a grid on top of which may be a random mass of blocks. The balls or blocks may be of polythene or vinyl and preferably have a specific gravity not more than 0.1 greater than the slurry. The fine gangue particles may be removed over an adjustable weir 29 and the large gangue partcles and the fine mineral particles are discharged through a valve 28a.
Patent GB-761190-A (GB)
Title: Utility steel rule attachment
IPC: G01B3/02
Filed: 1954-08-24
Abstract: 761,190. Attachment for measuring rules. BRANDWOOD, J. Sept. 1, 1954 [Aug. 24, 1954]. No. 24610/54. Class 106 (2). An attachment for sliding on a steel rule consists of a U-shaped block 1 carrying a spring 8, the spring being clamped against the rule by an element 7 carried on and having screw-threaded engagement with a rod 4 rotatable in the block on an axis inclined to the plane of the rule-engaging face of the block, Movement of the element 7 along the rod causes it to approach this face and press the spring against the rule. The element 7 is tapered so that its face engaging the spring 8 is parallel to the face of the block 1 engaging the rule.
Patent GB-249810-A (GB)
Title: Improvements in windshields for motor and like vehicles
IPC: B60J10/70
Filed: 1925-10-03
Abstract: 249,810. Fisher Body Corporation, (Assignees of Simpson, E. G.). March 26, 1925, [Convention date]. Ventilators.-In order to form a watertight closure at the lower edge of a vertically adjustable vehicle wind-screen e, the lower edge is left free or unframed and is adapted in its lower position to seat on a soft rubber or like strip m mounted on the wind-screen sill a. In the raised position the screen permits a draught to pass over the sill into a trough b which serves as a foot ventilator and at the same time the lower edge of the screen offers no obstruction to the line of vision of the driver. Adjustment of the screen is effected by any suitable mechanism, the upper edge of the screen entering a pocket or header in the fixed hood.
Patent GB-730180-A (GB)
Title: Method for protecting metal surfaces against corrosion by means of lacquer, and containers having surfaces treated according to this method
IPC: C09D163/00
Filed: 1951-10-24
Abstract: Lacquers for preventing corrosion of metal surfaces contain one or more macromolecular ether compounds of the type obtained by reacting a polyhydric phenol, e.g. bisphenol, with epichlorhydrin in alkaline medium and one or more pigments containing a chromate group and a molybdate group.  They are especially useful for protecting the surfaces of containers for synthetic detergents, particularly those containing-SO3Na or-OSO3Na groups.  In the example a lacquer containing two varieties of "Araldite" (Registered Trade Mark), Scarlet Chrome and diacetone alcohol, toluene and ethyl acetate as solvents, is applied to an iron barrel and baked for 15 minutes at 232 DEG  C.  More than one layer may be applied.  Other lacquer layers, preferably with a basis of macromolecular ether compound, may be applied over the protective lacquer layer.  Where more than one pigment is used, the chromate group may be in one and the molybdate group in the other.
Patent GB-1437943-A (GB)
Title: Crankshafts
IPC: F03C1/053
Filed: 1972-05-26
Abstract: 1437943 Adjustable throw cranks; hydrostatic transmission control BRITISH TWIN DISC Ltd 23 May 1973 [26 May 1972] 24903/72 Headings F2K and F2W [Also in Division F1] The pistons 67 of a radial cylinder motor of a hydrostatic transmission are actuated by a two-position adjustable crank comprising a slideblock 34 radially slidably mounted on a laterally flattened crank-pin 31 of a crank-shaft 14, the eccentric position of the slide block 34 being adjustable between radially outer (Figs. 1 and 4) or inner (Fig. 5) positions by fluid pressure respectively supplied to either of a pair of opposite radially expandable and contractable fluid chambers 36, 37 defined between the slideblock 34 and crank-pin 31. The hydrostatic transmission comprises a reversible pump 71 connected via lines 72, 73 to delivery and return ports 74, 76 of the motor, and includes a shuttle valve 78 connected across the motor parts 74, 76 and connected to a two position four-way valve 81 which, via lines 83, 84 and crank-shaft ducts 45-49 and 55-59 respectively connects the crank-pin fluid chambers 36, 37 to pump fluid pressure and exhaust, i.e. sump 82, or vice-versa, respectively to effectively maintain the crank-pin slide block 34 in its radially outer or inner position on the crank-pin 31. The valve 81 may (as shown) be a conventional spring biased solenoid operated valve, or, may be a simple manually operated two position valve (Fig. 3, not shown). Metal or glass filled P.T.F.E. seal rings 62, 63 and seal bars 64, 66 may be combined (Fig. 7, not shown) to fit around and seal the chambers 36, 37 between the crank-pin 31 and slide block 34. A ring 68, journalled by a roller bearing 69 on the periphery of the slide block 34, directly engages the bases of the pistons 67 and may, as shown, be circular, or may be externally pentagonal (Fig. 6, not shown) to provide broad contact wear resistant piston engaging faces (88). Flow restrictors 86, 87 may be provided in the lines 83, 84 to regulate the rate of charge from one crank-shaft throw to the other.
Patent GB-804336-A (GB)
Title: Improvements relating to the control of control reservoir charging in compressed fluid braking apparatus of the graduated release kind
IPC: B60T15/30
Filed: 1956-08-15
Abstract: 804,336. Fluid pressure brakes. WESTINGHOUSE AIR BRAKE CO. Aug. 15, 1956 [Aug. 15, 1955], No. 24921/56. Class 103 (1). In a triple valve for fluid pressure railway brakes, similar to that described in Specification 803,685 the quick service reduction insuring valve device 9 is so adapted that on being moved to an operative position to terminate a local quick service withdrawal of compressed fluid from the brake pipe 3 in the usual manner, it additionally exposes a pressure-responsive valve 59 interposed in the charging communication to the control reservoir 4 to a source of compressed fluid of which the pressure is at all times sufficient to maintain the valve closed so long as it is exposed, whereby the charging communication remains closed by the valve 59 until a late stage in the course of a complete release of the brakes, when the quick-service reduction insuring valve device returns once more to an inoperative position. The auxiliary reservoir 5 acts as a source of compressed fluid and is placed in communication with chamber 56 above the control reservoir charging valve device 10, through passage 41, valve cavity 99 in the reduction insuring valve 90 and passage 98 as soon as the brake pipe pressure in chamber 89 of valve device 13 has reduced to 6 p.s.i. below the normally fully charged pressure in the brake pipe.
Patent GB-587968-A (GB)
Title: Improvements in or relating to air-permeable screening material and the manufacture thereof
IPC: B29D7/01
Filed: 1944-12-13
Abstract: 587,968. Compound sheet materials. MANIFOLD DEVELOPMENTS, Ltd., BERNHARD, M. F., and MATTINGLEY, N. B. Dec. 13, 1944, Nos. 24974/44 and 9956/45. [Class 140] Fluid permeable screening material in the form of a perforated compound sheet consists of two'or more layers of cellulose acetate or other substantially inextensible plastic material alternating with and bonded to inner layers of reinforcing fabric in a substantially taut or unrelaxed state. The fabric may be formed from natural fibres, e.g., cotton, from artificial fibres, e.g., cellulose compounds, or from metal. The component layers are bonded together as by impregnating the fabric fibres with a solvent of the plastic sheeting and applying pressure to the built-up sheet. The fabric may be partially soluble in the plastic sheeting solvent to give a stronger bond. As shown, three layers of plastic material A, B, C sandwich two reinforcing fabric layers D, E, each woven with a diamond mesh out of register with the mesh of the other so that perforation at F after bonding does not unduly weaken the sheet. In an alternative form, the layers of plastic material are individually perforated and then united with an interposed fabric layer with the perforations out of register but overlapping to the extent of over 40 per cent. of the area of the sheet.
Patent GB-584180-A (GB)
Title: Improvements relating to presses or cramps for the manufacture of ladders
IPC: B27M3/12
Filed: 1944-12-13
Abstract: 584,180. Cramps. COOK, T. Dec. 13, 1944, No. 25011. [Class 61 (ii)] A machine for cramping the sides on the rungs of ladders comprises a number of transverse frames 1 supporting fixed and movable parallel cramping bars 4, 5, the length of the ladder and provided with brackets 7 for supporting the ladder sides, bar 5 being actuated by a number of transverse shafts 8 threaded at the ends to engage brackets 10 on the bar and actuated by gears 12 from a longitudinal shaft 14 driven by a hand wheel 16 or a belt pulley 17. Bar 4 has a number of holds 6 spaced corresponding to the spacing of the ladder rungs and of a diameter larger than their ends.
Patent GB-600133-A (GB)
Title: Improvements in the abrasion testing of hard materials and particularly diamonds
IPC: G01N3/56
Filed: 1945-09-28
Abstract: 600,133. Testing physical qualities of materials. GRODZINSKI, P. Sept. 28, 1945, No. 25179. [Class 106 (ii)] A test-piece of diamond or other hard material, for carrying out wear resistance tests by an abrading process, consists of a right pyramid with a square base and four equilateral triangles as sides. The test-piece T, which may readily be obtained from crystals of the cubic system, is mounted in a holder H, Fig. 2, and abraded for a known time under a known pressure on a grinding wheel G operating at a known speed. The degree of abrasion, which is a measure of the hardness, may be determined by weighing, by means of a micrometer or microscope or by photographic means and, in the case of transparent materials, any internal defects may be studied with a microscope. In order to investigate the effect of the direction of abrasion, the test-piece may be orientated differently relative to the direction of rotation of the grinding wheel. Alternatively, directional differences may be compensated for by rotating the test-piece in addition to the grinding wheel. The testpiece T is held against a base-plate 9 of a holder, Fig. 3, by means of two plates 7, 8 having V-shaped recesses and carried by jaws 12, 13 which may be moved relatively by rotating a screw 10 having right- and left-handed threads. In a modified holder, Fig. 5, the test-piece T is clamped against a base-plate 17 by means of plates 18, 19 carried by spring-loaded stems 20, 21, engaged by a lever 24 which is raised or lowered by rotating a screw having a conical end 29.
Patent GB-241218-A (GB)
Title: Improvements in reinforced block-work floors
IPC: E04B5/06
Filed: 1925-10-09
Abstract: 241,218. L÷hle, C. Oct. 9, 1925. Flooring and ceiling blocks.-Hollow blocks 1,. resistant to compression, are arranged with vertical plates 2 disposed in the joints and extending into the cavities of the blocks in order to prevent the jointing cement falling into the said cavities, and such plates are held in position by means of projections 3, 4 either on the blocks or on the plates. The vertical plates may be integral with one of the blocks. Ribs 5, 6, Fig. 6, are provided on the end and longitudinal faces of the blocks. The blocks may be of L-shape, with the arms disposed either at a right-angle, or at an acute angle, Fig. 10, vertical plates 12, 13 being provided. In a further modification. Fig. 11, angle blocks 14, 15 of acute and obtuse form are arranged alternately and vertical plates 16, 17 are provided. A floor may also be constructed of obtuse-angled blocks only.
Patent GB-955253-A (GB)
Title: Process for the production of complex alkali metal alkyl aluminium compounds or alkali metal alkyl aluminium hydrides
IPC: C07F5/06
Filed: 1960-07-20
Abstract: Trialkyl aluminium complexes or addition compounds are reacted with alkali metal hydrides, if desired in the presence of olefines, to give alkali metal alkyl aluminium compounds or alkali metal alkyl aluminium hydrides. Especially suitable are the halide (particularly fluoride), cyanide and trialkylamine complexes and addition compounds.  When carrying out the reaction in the presence of an olefine it is preferred to use that olefine corresponding to the alkyl residue. Sodium hydride is the preferred reactant.  The liberated complex formers may be readily separated from the reaction products: alkali metal fluorides and cyanides crystallise out directly and may be separated by decantation, filtration or centrifuging, and tertiary amines can be distilled off, preferably in vacuo.  If desired, the reaction may be carried out in stages by adding an ether or tertiary amine to the complex aluminium compound, separating the etherate or trialkyl aminate and reacting this with sodium hydride.  The process is particularly applicable to the trialkyl aluminium complexes resulting from the working up of the electrolysis products from the electrolytic production of alkyl metal compounds such as tetraethyl lead. The product of the process of the invention may be returned as electrolyte to the electrolytic cell. Specifications 779,874, 814,609, 848,364, 864,393, 864,394, 923,651, 923,652, 923,653, 946,686 and 955,252 are referred to.