baber/WOPTO huggingface dataset:
Patent GB-833510-A (GB)
Title: Improvements in or relating to devices for testing metal specimens under bending stress
IPC: G01N3/20
Filed: 1956-09-19
Abstract: 833,510. Testing bending of materials. PHILIPS' GLOEILAMPENFABRIEKEN N.V. Sept. 19, 1956 [Sept. 22, 1955], No. 28641/56. Class 106 (2). A device for testing metal specimens 11 under bending stress comprises a mandrel 8 having a circular cylindrical surface 10 around which the specimen 11 is bent, and bending means comprising a roller 18 such that, at any angle of bending, bending stress is exerted on the specimen only at the instantaneous point of contact between the specimen and the mandrel 8 (the point on the specimen which has just come into contact with the mandrel) and bending occurs only at that point. The mandrel 8 lies between a supporting member 4, resting on springs 5, and the specimen 11 to be tested, the latter being held against the mandrel 8 by a member 12 engaged by an interchangeable thrust member 13 acted upon by an eccentric 14. Three rollers 18 on a second thrust member 17 act against the specimen 11, the lowest roller having its axis in the same horizontal plane as the centre line of the circular surface 10 before starting the test. A lever 22, to which the member 17 is adjustably secured pivots about the centre line of the circular surface 10 and is used for applying the bending thrust. When the specimen 11 has been bent through 90 degrees, cams 23, comprising circles with their centres above the pivots of lever 22, act on pins 6 protruding from the supporting member 4 and lower it against the action of the springs 5, thus allowing bending through 180 degrees to take place. One of the cams 23 is graduated in degrees and together with a pointer on the side of the apparatus permits the angle of bending at which fracture or cracking may occur to be read. The mandrel 8 may be interchangeable with other mandrels, and so may the thrust member 12.
Patent GB-1477322-A (GB)
Title: Sliding window
IPC: E05B65/08
Filed: 1974-06-28
Abstract: 1477322 Tiltable sliding windows WILH FRANK GmbH 28 June 1974 [9 July 1973] 28744/74 Heading E1J A window has horizontally sliding sashes 2, 3 at least one of which 3 is also tiltable about its lower edge. It has two stays 5 with additional arms 6. One end of each arm 5 is pivoted on a sliding member 7, 7' which moves in a groove in the upper mainframe member 1. Locking means 13 operated by an endless cord arrangement 12 actuated by a knob 11 situated on a vertical sash frame member co-operate with members 14 at least one of which is located on the sliding members 7 or 7' or an extension of these.
Patent GB-615596-A (GB)
Title: Improvements in and relating to rotary stud fasteners
IPC: F16B5/10
Filed: 1946-09-26
Abstract: 615,596. Stud - and - socket fastenings. UNITED - CARR FASTENER CORPORATION. Sept. 26, 1946, No. 28770. Convention date, Sept. 27, 1945. [Class 44] In a stud-and-socket fastening of the kind comprising a rotatable stud with a radial arm or arms, the plate through which the stud passes is formed with an aperture of substantially the same diameter as the stud shank and with a radial elongation to permit passage of the arm or arms, and resilient retainer means are provided for preventing accidental removal of the stud from the plate. With a stud of usual type, the aperture in the plate 10, Figs. 3, 4, has a radial extension 14 long enough to permit the stud to be passed through by tilting. The stud is retained by a spring clip 15, e.g. of triangular form shown. Alternatively, a spring washer 16, Fig. 8, may be used, having a central aperture, radial extensions 18 to pass over the stud arms, and spring fingers 19 to prevent accidental removal. A split washer 20, Fig. 10, may be used or a similarly shaped washer of dished form to conform to the usual dished form of the edge of the aperture in the plate 10.
Patent GB-994076-A (GB)
Title: Method for purifying silicon halides
IPC: C01B33/08
Filed: 1961-08-10
Abstract: Silicon halides of formula SiBnH4-n, where B is a halogen atom, containing as impurities one or more halides of elements of Groups III and V, are purified by passing the impure silicon halide in vapour or liquid form in contact with active aluminium oxide in the acidic form, in the basic form, or in a mixture of such forms.  The silicon halide may be passed through the aluminium oxide which is contained in a tube and which may be supported on quartz wool, and may be passed through separate layers of acid and basic active aluminium oxide.  Examples are given of removal from SiCl4, SiHCl3 and gaseous SiH2Cl2 of one or more impurities consisting of halides of P, B, As and Sb.  The purification may comprise distilling the impure silicon halide, passing the resultant vapours up through active aluminium oxide in the acidic form, basic form or mixture of such forms, contained in a column, condensing the vapours, and passing the condensate back down through the aluminium oxide; such a purification of SiHCl3 is exemplified.  The halogen atom of the silicon halide is preferably chlorine, but other halides mentioned are SiBr4 and SiI4.  The halides may have previously been purified by some other method, for example fractional distillation, and the method of purification is applicable to the purification of mixtures of silicon halides, from which elemental silicon may ultimately be obtained.
Patent GB-702977-A (GB)
Title: Improvements in or relating to devices for indicating a predetermined temperature ortemperatures
IPC: G01K11/06
Filed: 1951-12-11
Abstract: 702,977. Temperature indicators. LINE EQUIPMENT Ltd., LLOYD, H., and JACKSON, H. P. Dec. 10, 1952 [Dec. 11, 1951], No. 28991/51. Class 97(3) A device for indicating a predetermined temperature comprises an element fused into a fusible substance and connected to a visual indicator, and means for applying a torque to said element whereby it is twisted when the substance melts. The tubular housing B contains the fusible substance A, which may be wax, a metal or an alloy. The rodlike element C is fixed to the circular enlargement D and a non-circular, preferably plate-like extension D' is fused into the substance A. The flag E is fixed to the rod C and initially covers the right hand side of the backing plate H, exposing the black face H<SP>2</SP> of the plate H and the black face E' of the flag. A spring G exerts a torque on the rod C tending to turn it and the flag in the direction of the arrow. When the substance A melts, the rod turns and the flag covers the left hand side of the plate H, exposing the red right hand face H<SP>1</SP> of the plate H and the red side E<SP>2</SP> of the flag. By fusing the tube B into a second fusible substance contained in an outer tubular housing, and connecting a spring between the two housings, the device may be made to indicate two predetermined temperatures. A detailed description of such an arrangement is given.
Patent GB-414021-A (GB)
Title: Improvements in or relating to classing and tabulating files or similar articles
IPC: B42F17/00
Filed: 1932-10-17
Abstract: 414,021. Indexing. DEQUEKER ET CIE, M., 71, Rue Desnouettes, Paris. Oct. 17, 1932, No. 29013. Void [Abridged as open to inspection under Sect. 91 of the Acts, Oct. 21, 1932]. [Class 16.] In a method of indexing file wrappers, cards, or like articles, in which the articles are divided into groups such that the titles in any one group all commence with the same signs or letters, the articles are each provided with a row of spaces 1 to receive the signs or letters forming the title and with an associated row 2 of indications or signs to be written in the spaces. A middle group of the spaces serves to receive the initial signs, such as the letters CHI, which are constant for all the files of a group, a right-hand group of spaces receives the following variable letters of the titles, and a left-hand group receives a sign 3 representing the group. The titles are stepped as shown, in accordance with the normal order of the first varying letters of the different titles, so that a misplaced file, such as the file 4, is disclosed by a break in the stepped arrangement.
Patent GB-1275760-A (GB)
Title: A combination comprising a sheet and an edge protector
IPC: F16B5/12
Filed: 1969-06-09
Abstract: 1275760 Jointing STAUBLI & CO GEB 9 June 1969 [14 June 1968] 29039/69 Heading B3V [Also in Divisions B5 D1 and E1] A metal sheet 1 having a marginal portion 2 with a plurality of projections 3, Fig. 3, directed outwards alternately from one and the other side of the sheet is provided with an edge protector 4, Fig. 1, of U-shaped cross-section with at least one rib 5 formed on the inner surface of each side wall and directed inwardly and towards the bottom of the U-shaped cross-section, the ribs 5 engaging behind the projections of the sheet. In one embodiment, Figs. 1 and 3, the projections 3 are formed by corrugations produced either directly with the cutting of the sheet by a linear pressing beam or by passage between rollers 6, Fig. 7, having points 7 on their periphery. Preferably, the side 8 of the corrugations remote from the edge of the sheet lies at right angles to the plane of the sheet 1. The protector 4 may be removed either laterally or by forcing open the cross-section lightly. In a modification, Fig. 10, the projections comprise individual tips 13, staggered as shown. If the sheet is deformable, e.g. of metal, the tips 13 can be pressed out of the sheet. With cast metal sheets, the tips 13 may be made during casting. With metal sheets produced by rolling, the tips 13 may be attached subsequently by sticking, welding or soldering. On the side away from the edge of the sheet the tips 13 have recessed surfaces (18), Figs. 8 and 9 (both not shown), to retain the edge protector.
Patent GB-716765-A (GB)
Title: Improvements in devices for supporting belt conveyors utilizable particularly in collieries
IPC: B65G39/10
Filed: 1952-11-18
Abstract: 716,765. Idler supports for endless belt conveyers. ETABLISSEMENTS A. COLINET, and HERLAUD, F. A. Nov. 18, 1952, No. 29056/52. Class 78 (I). The trunnion 4 of an idler 5 is detachably secured in a recess 7 formed in an H-section bracket 2 by the limb 8 of a spring-controlled U-latch 9. The limb 8 is held in its recess-closing position by a spring 11 interposed between the inner face of a lower limb of the bracket and a washer 12 pinned at 13 on the limb 10 of the latch. The trunnion 4 is provided with a flat 14 to prevent it rotating in the recess 7.
Patent GB-422295-A (GB)
Title: A new or improved marking device for use primarily in connection with door-making machinery
IPC: B27M1/00
Filed: 1933-10-21
Abstract: 422,295. Marking device for woodworking machines. KNEEBONE, R., and YELVERTON DAWBARN BROS., Ltd., West Float, Birkenhead. Oct. 21, 1933, No. 29172. [Classes 61 (ii) and 145 (i)] A component is marked on one face during its passage through a wood-working machine, to facilitate subsequent assembling of the components. A plate 1 secured to the machine frame carries a pivoted arm 11, the free end of which carries a holder 17 for blacklead chalk, &c., 19, or is provided with a metal scribing member. A lever 5a, 5b, is also pivotally mounted on the plate 1, the arm 5b carrying a rod 9 extending through a flange 10 on the arm 11; a spring 13 is interposed between the flange 10 and a collar 14 secured on the rod 9. The arm 5a acts as a trip lever, and is depressed by the work 4 passing over it so as to hold the marker in contact with the face of the work to draw a line thereon. The arm 5<a> is urged to its projected position by a coiled spring. The marking device may be positioned above the work.
Patent GB-858189-A (GB)
Title: 5-arylsulphonamido-3-substituted-1,2,4-thiadiazole derivatives
Filed: 1959-08-27
Abstract: The invention comprises alkoxybenzenesulphonamido-1 : 2 : 4-thiadiazoles of the formula:  <FORM:0858189/IV(b)/1> wherein Ar is a phenyl radical substituted with an alkoxy radical of 1-4 carbon atoms, e.g. p-methoxy, p-ethoxy or p-butoxy, and R is an alkyl or alkoxyalkyl radical of 1-4 carbon atoms, e.g. methyl or ethyl, or a phenyl, benzyl or methylmercapto radical, and their preparation either by reacting a 5-halo-3-substituted-1 : 2 : 4-thiadiazole with an alkoxybenzenesulphonamide in the presence of an acid binding agent, or reacting a 5-amino-3-substituted-1 : 2 : 4-thiadiazole with a functional derivative of an alkoxybenzenesulphonic acid, e.g. the chloride, bromide, fluoride or azide, in the presence of an acid-binding agent such as a trialkylamine, pyridine, potassium carbonate or sodium carbonate.
Patent GB-159322-A (GB)
Title: Improvements in and relating to electric thermionic amplifiers
IPC: H03F3/02
Filed: 1919-11-25
Abstract: 159,322. British Thomson-Houston Co., Ltd., (General Electric Co.). Nov. 25, 1919. Thermionic amplifiers. - In order to prevent the production of high-frequency oscillations, arising from the natural static and inductive coupling between the grid and plate circuits of an amplifying-relay comprising a number of valves 1 - - 7 arranged in parallel, means, such as a small inductance 20, is inserted in the grid circuit of one only of the valves, and close to' the grid of that valve. In cases where long leads, having a comparatively large inductance, are necessary, the oscillation-preventing inductance may be inserted in the grid circuits of more than one amplifier. The amplifier is shown coupled to a telephone, transmitter 13, the amplified currents being fed through a transformer 18 to any desired output circuit 19.
Patent GB-1508454-A (GB)
Title: Lubricating greases
IPC: C10M169/00
Filed: 1975-07-14
Abstract: 1508454 Lubricating greases BRITISH PETROLEUM CO Ltd 9 June 1976 [14 July 1975] 29407/75 Heading C5F A grease composition comprises a lubricating oil thickened to a grease consistency by a colloidal clay surface-modified by an oleophilic substance and also contains 0À1 to 10% of a nickel dialkyldithio-carbamate. The grease has improved antioxidant and load-carrying properties, and is suitable for use in hot bearings.
Patent GB-1308870-A (GB)
Title: Apparatus for producing an electrical signal related to the con centration of a solution
IPC: G01N21/43
Filed: 1971-06-23
Abstract: 1308870 Refractometer SOC D'OPTIQUE PRECISION ELECTRONIQUE ET MECANIQUE 23 June 1971 [23 June 1970] 29454/71 Heading G1A An apparatus for indicating that a desired concentration of a solution 1, Fig.1, has been reached comprises means for directing light from a source 8 inclinedly upon an internal plane surface 6 of a prism 5, a pair of photo-cells 14, 15, means for directing the light internally reflected by surface 6 towards the photo-cells, means for deriving a signal related to the difference in illumination of the two cells which are spaced in the direction in which the boundary formed by the limit of the totally reflected light moves and the photo-cells are adjustably mounted on a track against a scale, so that the area closely monitored can be pre-set. The apparatus is described with reference to monitoring sugar concentration during jam making.
Patent GB-957710-A (GB)
Title: Improvements in or relating to electromagnetic waves switching systems
Inventor: LEVY RALPH
IPC: H01P1/11
Filed: 1959-08-28
Abstract: 957,710. Waveguide Faraday rotators. GENERAL ELECTRIC CO. Ltd. Aug. 23, 1960 [Aug. 28, 1959], No. 29537/59. Headings H1W. [Also in Divisions G3 and H3] A waveguide switch comprises a Faraday rotator 2 associated with field coils 3, 4 and two polarizationsensitive probes 7, 8, the output of which is used to control the current in coils 3, 4, and hence the wave rotation, the feed-back network having two alternative conditions of operation whereby the wave energy may be fed to either of two orthogonal output guides 50, 51. The probes 7, 8 extend into the round waveguide 1 at right angles to each other and at 45 degrees to the rectangular output guides 50, 51. The orientation of rectangular input guide 5 is such that in the absence of any rotation (equal and opposite currents in the field coils) the output of one of the probes is a maximum. The outputs of the probes are rectified and fed over coaxial lines 11, 12 to a differential transistor amplifier. In the event of unequal signals from the probes 7, the output of the amplifier is fed to the coils 3, 4, the gain of the amplifier being such that there is a consequent rotation of 45 degrees in the plane of polarization of the wave energy and the energy is fed to one or other of the two outputs 50, 51. The direction of rotation and, consequently, the selection of the output channel, is controlled by a transistor switching circuit which determines the sign of the output currents and hence the direction of rotation. One of the two outputs may comprise a matched resistive load. The Faraday element 2 may consist of manganese magnesium ferrite and may be made from short rods glued together. Alternatively, it may be in the form of an annular member lying in contact with the waveguide walls.
Patent GB-1397607-A (GB)
Title: Lens assembly
IPC: G02B15/10
Filed: 1972-06-23
Abstract: 1397607 Copying lens assembly RANK XEROX Ltd 23 June 1972 29650/72 Heading G2J A copying lens comprises a main lens 21 and two add-on lenses 22, 23 which are pivoted to the main lens housing 264 and automatically moved into or out of the optical axis of the arrangement as the main lens moves from its centre position as shown to positions one on either side. Lenses 1 and 6 are bi-convex and lenses 2 and 5 biconcave, the amounted surfaces having a very large radius of curvature. Optical data are given. Mirrors 262, 263 form part of the copying machine and remain fixed.
Patent GB-301017-A (GB)
Title: Process of preparing finished acetate silk by the dry or evaporative method
IPC: D01F2/30
Filed: 1928-10-15
Abstract: 301,017. Naamlooze Vennootschap Nederlandsche Kunstzijdefabriek. Nov. 23, 1927, [Convention date]. Cellulose acetates, processes for making filaments from.-A finished acetate silk is obtained directly by the dry-spinning method by adding to the spinning solution vegetable or animal oils or fats or mixtures thereof having a melting point between about 20-40‹ C, and twisting and reeling or spooling the spun material without any intermediate finishing or like treatment. Specified oils and fats comprise olive oil, olein, cocoanut oil, butter fat, beef suet, lard, bone oil, and ground nut oil. Other higher melting point vegetable or animal oils or fats are added if the melting points of these substances do not fall between the temperature limits specified. Suitable mixtures comprise olein and cocoanut oil or olive oil and cocoanut oil. The amount of the finish added to the spinning solution is preferably between 1-5 per cent on the weight of the cellulose acetate. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the employment of a mixture of olein and stearic acid. This subjectmatter does not appear in the Specification as accepted.
Patent GB-898339-A (GB)
Title: A process and apparatus for the continuous production of polyhexamethylene adipamide
IPC: C08G69/28
Filed: 1958-09-17
Abstract: An apparatus (shown in Fig. 1) for the continuous production of polyhexamethylene adipamide (see Group IV(a)), comprises a worm conveyer 8 communicating via a pipe with a two-part tubular polycondensation vessel which comprises a first tube 12 through which the melt is moved upwards and an adjacent second tube 13 through which the melt is moved downwards, the first tube being provided with an inlet to the second tube disposed below the melt level 15 to be maintained in the second tube.  The tube 13 is provided with inspection ports 16, outlet 17 for the water formed during the reaction and outlet 18 for the polymer.  In the embodiment shown in Fig. 2, part of <PICT:0898339/III/1> <PICT:0898339/III/2> the water formed during the polycondensation is withdrawn through valve 19.ALSO:<PICT:0898339/IV (a)/1> <PICT:0898339/IV (a)/2> In a process for the continuous production of polyhexamethylene adipamide, adipic acid and hexamethylene diamine are supplied in solid form to a heated worm conveyer, are continuously melted therein and are condensed under pressure, the water split off in the polycondensation being constantly withdrawn thoughout the entire polycondensation process. In Figs 1 and 2, hexamethylene diammonium adipate is introduced via filling hopper 2 to the conveyer worm 8, the melt leaving the worm being condensed in condensation container 12, water being drawn off through valve 17, the resultant polymer flowing down through 13 and withdrawn via valve 18.
Patent GB-1085057-A (GB)
Title: Yarn production
Inventor: LEWIS GEORGE WILLIAM
IPC: D02G1/00
Filed: 1963-07-29
Abstract: 1,085,057. Crimping yarn. COURTAULDS Ltd. July 28, 1964 [July 29, 1963], No. 29906/ 63. Heading D1F. A thermoplastic yarn is helically coiled by being passed between a mandrel 1, and a tube 3 rotated by a belt or through gears, with a helical baffle projecting from the inside of the tube or from the mandrel. The baffle may be a screw thread on, or a helical spring frictionally retained by, the mandrel or tube. The mandrel may be eccentrically positioned within the tube, and may be tapered. The tube has preferably longitudinal ribs on, or slots in, its inner surface to increase its grip on the yarn. Either the mandrel is heated - as by heater 2-, and/or the tube is heated - as by a stationary heater positioned around the tube-, while the yarn may be preheated. The coiled yarn may be cooled by a jet of air or passed into a relaxation zone. The yarn may be a acrylonitrile polymer, a polyester, a polyamide, cellulose triacetate, or a blend of acrylic and viscose rayon fibres.
Patent GB-696651-A (GB)
Title: Improvements in and relating to frames for motor cycles and the like
IPC: B62J1/02
Filed: 1950-12-06
Abstract: 696,651. Motor-cycle frames. NSU WERKE AKT.-GES. Dec. 6, 1950 [Aug. 24, 1949], No. 29907/50. Class 136 (iii) A motor-cycle frame consists of two halves 1, 2 butt welded together, one portion of the frame edges forming a close joint, whilst the other frame edges leave an open space, the fixing places 5, 6, for parts such as the tank and saddle support being provided in the zone 8 of the frame which is relatively free from stress when the frame as a whole is subjected to bending stresses, whereas the fixing places 9, 10 for the support 4 of the rear wheel springing and the saddle spring 11, which are near the open part of the frame, are situated in the vicinity of the welding seams. Stiffening ribs 14, 15 are provided along the central zone 8.