baber/WOPTO huggingface dataset:
Patent GB-1301135-A (GB)
Title: Improvements in or relating to multifrequency signal generators
Inventor: RIEHM CHARLES EDWIN JR
IPC: H03B5/20
Filed: 1970-07-21
Abstract: 1301135 Substation apparatus; transistor oscillator circuits WESTERN ELECTRIC CO Inc 21 July 1970 [22 July 1969] 35189/70 Heading H3T and H4K A multifrequency signal generator including two oscillators for generating two-simultaneous different frequencies, each oscillator including a plurality of frequency determining elements selectable by field effect transistors. The generator shown is designed to be fabricated using integrated circuit and thin film techniques and comprises two oscillators OSC H  and OSC L , each comprising an amplifier A L  and a twin "T" R-C feedback path. Insulated gate field effect transistors F L02  to F L04 , F H12  and F H13  selectively short portions R6, R8, R10, R7 and R9 in the feedback paths to determine the oscillating frequencies of the oscillators. The gating voltages to the IGFET's are supplied by voltage generators G1 to G5 each controlled by dial button contacts. To ensure a rapid switch off of each IGFET when its gate signal terminates a second IGFET which operates in the opposite state may be connected across its gate and source electrodes. Rectifying circuits which include two further IGFET's (amplifier and inverter), are provided to extract the peak voltages from signals on the line and to control the frequency determining IGFET's in accorance therewith. The invention can also be used in a repertory dialler or card dialler. Groupings of components on a number of silicon chips are specified.
Patent GB-301469-A (GB)
Title: Apparatus for indicating the respective weights of a number of similar articles
IPC: G01G19/00
Filed: 1928-11-29
Abstract: 301,469. Denis, L. L. B., and Soc. Anon. de la Raffinerie A. Sommier. Nov. 30, 1927, [Convention date]. Spring balances. - In a weighing-scale adapted to indicate under and over weight, the load is supported upon a frame that is movable vertically along a rotatable guide, but is itself held against rotational movement. As shown in Fig. 1, a goods pan 1 is supported on a frame 2 slidably mounted on a vertical post 6. The weighing-resistant comprises a sinuous spring 9 anchored at one end 11 to the framework and provided at the other end 14 with a fork, the pointed upturned ends 10 of which serve both to support and prevent rotation of the frame 2. The effect of friction between the post and frame is eliminated by rotation of the post through a pulley 7 or other means. The indicating means comprise a pointer registering with a chart and actuated from the frame through a rack and pinion. In a modification, Fig. 8, the goods pan 1 is supported on a vertical post 25 vertically slidable within a rotatable sleeve 26. In a fur. ther modification, rotation of the frame is prevented by the provision of two vertical rotatable guides with which the frame engages. The invention is applicable to a machine having an automatic-feed device, the operation of which is controlled by a downward projection 20, Fig. 7, of the frame 2 that either intercepts a rocking arm 21 or allows it to pass according to whether the load is above or below a certain weight.
Patent GB-864421-A (GB)
Title: Improvements in and relating to remote controls
Inventor: BENTLEY JAMES SYDNEY
IPC: F16C1/10
Filed: 1956-11-19
Abstract: 864,421. Bowden mechanisms; flexible shafts. TELEFLEX PRODUCTS Ltd. Nov. 13, 1957 [Nov. 19, 1956], No. 35261/56. Classes 80 (2) and 80 (3). [Also in Group XXV] In a remote control comprising a cable or rod transmitting pull, push or torque and moving in a flexible or rigid conduit, a coating of polytetrafluorethylene is bonded to the interior of the conduit or to the exterior of the cable or rod, or to both, in order to reduce friction. Where the conduit comprises a bendable tube, e.g. of aluminium, the p.t.f.e. may be formed as a continuous lining, as a jointed lining or as a partial lining provided only in curved stretches of the conduit. A lined bendable conduit may be produced by simultaneously extruding a tube of p.t.f.e. in a metal tube, or by inserting a tube of p.t.f.e. into a metal tube and then reducing the external diameter by drawing, the interior surface being dressed by broaching. Alternatively a tube of p.t.f.e. may be bonded in a metal tube by rotary swaging. The interior of the metal tube may be roughened, and bonding may also be assisted or effected by adhesives. A lined flexible conduit may be produced by bonding a tube 31 of p.t.f.e. into a normal conduit of helical wires 29, 30, or by wrapping wires around a p.t.f.e. tube. A covering of p.v.c. may then be provided. A coated cable may be produced by spraying p.t.f.e. on to a stranded steel cable and then sintering, or by threading a sleeve of p.t.f.e. on to a steel cable and then swaging, rolling or pressing it, or by applying helically laid or other strips of p.t.f.e. to a steel cable or by extruding p.t.f.e. on to a cable. The cable may be covered throughout the whole or parts of its length. A rigid or bendable rod may be used instead of a cable.
Patent GB-764622-A (GB)
Title: Improvements in or relating to the repairing of fractured metal articles
IPC: B23P6/04
Filed: 1954-12-06
Abstract: 764,622. Jointing. SVENSKA METALOCK AKTIEBOLAG. Dec. 6, 1954 [Dec. 7, 1953], No. 35304/54. Class 83 (4). A cracked or fractured metal article such, for example, as a casting 2, 3 is repaired by forming in the article, across the crack or fracture 1, a parallel-sided recess having an overall depth greater than its width and inserting therein a close-fitting complementary locking plate 4, the sides of the recess and the plate having complementary grooves co-operating to form a series of spaced holes 10 into which metal pins are driven or screwed to lock the plate in position. The invention is stated to be particularly applicable when the crack 1 is located at a corner as shown. The bottom of the recess is formed with two sides 5 and 6 spaced from and parallel to the outer sides at the corner and the top edge 9 of the plate may be shaped to the inner surface of the casting as shown or left straight to form a web across the corner. If the crack extends inwardly from the outside of the corner the recess is formed from the outside of the corner and has a bottom with sides spaced from and parallel to the inner sides of the corner. A number of locking plates 4 may be used at spaced intervals along the crack.
Patent GB-342412-A (GB)
Title: Cases for carrying tennis and like racquets
IPC: A45C11/00
Filed: 1929-11-19
Abstract: 342,412. Racket presses. McKENDRICK, C., Holborn, Succoth Gardens, and THYNE, D. S., Greenside Lodge, Corstorphine Road, both in Edinburgh. Nov. 19, 1929, No. 35306. [Class 132 (ii).] In a combined tennis or like racket case and press of banjo shape, completely enclosing the racket and its handle, and provided with a pair of press frames and clamping means for tightening up the press after the case has been closed, the case comprises two parts a hinged along one edge of the wider part of the case and provided with fasteners d; and a frame is secured in each part a and the clamping means pass through one or both parts of the case and are removable so that the case may be opened like a book. The case may be of wood, metal, or other material, covered with leather, or other material. Side fillets f position the racket on wood or metal press frames e, or the frames may be grooved to take the racket, and the clamping means comprises screws h which pass through metal shod sockets in the top of the case and the upper frame and take into screw-threaded sockets g, one at each corner of the lower frame. The screws h have slotted heads and each carries a rubber or other resilient distance piece which lies between the frames, and a spring which lies under the slotted head and locks the screw when the latter is tightened up. Other types of clamping screws may be used with, for instance, a finger-piece which can be turned down to lie in a recess on the outside of the case, and the press frames may be of any other construction comprising two members, such as a pair of cross frames. A handle l is provided.
Patent GB-641996-A (GB)
Title: Stencil frame for screen printing
IPC: B41F15/36
Filed: 1947-12-31
Abstract: 641,996. Stencils. SEVEROCESKE STROJIRNY, A SLEVARNY NARODNI PODNIK. Dec. 31, 1947, No. 35386. Convention date, Aug. 5, 1941. [Class 100 (ii)] A stencil screen is secured in a rectangular tubular frame of metal, having an upright inner side 1 and a curved outer side 2 which are connected by a recessed portion 4 having a dovetailed side 3 in which the screen is secured by means of a strip of easily melted material 5, such as an artificial resin of the vinyl group, which holds the screen under tension.
Patent GB-895789-A (GB)
Title: Improvements in or relating to character recognition
IPC: G06V30/224
Filed: 1959-10-20
Abstract: 895,789. Automatic character reading. REUMERMAN, T., and HELMIG, W. H. T. Oct. 19, 1960 [Oct. 20, 1959], No. 35459/59. Class 106 (1). Characters having coded gaps as shown in Figs. 2 and 3 are sensed by being passed under a series of sensing elements 21-33, Fig. 4, the middle five being aligned with the five possible gap positions. The upper and lower pair of elements 21 and 33 detect excessive out-ofalignment of the character and are used to give a reject signal. The characters may be printed in magnetic or conductive ink, each sensing element being in the form of a magnetic head or a pair of closely spaced contact brushes. Alternatively photo-cells may be used. The signals derived are amplified at 15 and entered into twostate stores such as triggers or cores 41-53 which are reset at the end of the scan. In the form of Fig. 5 there are two groups of interleaved sensing elements the arrangement being such that the passage of a character will activate the top and bottom elements of the set of seven. If a character is badly misaligned by being too high, elements 19 and 31 will be energized by the top and bottom portions of the character and storage units 39 and 51 will be set. If slightly lower the character will activate the elements 20 and 32 defining a set of seven elements of the other group. There are three possible sets of seven in the first group and two sets in the second so that according to the vertical registry of the character one of five sets gives a valid output representing the character in coded form. A circuit selects the valid set. If the arrangement of Fig. 5 is impracticable because of the size of the elements, they may be staggered as shown in Fig. 6. Specification 845,510 is referred to.
Patent GB-363103-A (GB)
Title: Improvements in and relating to photo-electric apparatus
IPC: H01J31/40
Filed: 1930-11-25
Abstract: 363,103. Dis c h a r g e apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Hitchcock, W. J. ; 203, Alexander Avenue, Scotia, New York, U.S.A.) Nov. 25, 1930, No. 35477. Convention date, Nov. 26; 1929. [Class 39 (i).] A tube for use in the transmission of pictures has a cathode 11, Fig. 1, an anode 18, and a photoelectric element 17 scanned by a concentrated ray and interposed between the cathode and anode, the photo-electric element consisting of photoelectric material deposited on a number of small conducting sections mounted on vitreous supports or thin vitreous threads of such size and spacing as to have small capacity and high insulation. As shown in Fig. 2, the anode 18 consists of transverse wires, and the element 17 consists of caesium deposited on sections of silver, copper, or material known under the registered Trade Mark " Aquadag," mounted on mesh of vitreous material. A screen 21 and an accelerating anode 22 are mounted near the cathode 12, and the beam is deflected by electrodes 13, 14 so as to scan the element 17 on which a picture is projected through a lens 31. A gas is introduced so that the resulting positive ions concentrate the beam into a pencil of a diameter less than 1 mm. In order to prevent the discharge of the element 17 by the beam, an auxiliary cathode is provided and maintained at a lower potential than the cathode so as to produce a ray distributed over the element 17 and cause it to assume the potential of the auxiliary cathode. A control electrode 16 and a control electrode 15 at a lower potential than the electrode 16 are mounted near the element 17 so as to retard the rays from the cathode 12 and prevent the formation of positive ions near the photo-electric surface. The anode is connected through a resistance 26 and batteries 27, 25, 24 with the cathode, and through a condenser 29 with the input of a wireless transmitter 28.
Patent GB-1516877-A (GB)
Title: Heating of kilns using solid fuel
IPC: F27B13/12
Filed: 1975-08-28
Abstract: 1516877 Heating of kilns using solid fuel; burners RUHRKOHLE AG and A FRIEDL 28 Aug 1975 [30 Aug 1974] 35523/75 Headings 4FB and F4T In a process for the firing of rough ceramics, a kiln 1, e.g. for bricks, is fired by the intermittent delivery of solid fuel by firing equipment 11 inserted through the middle ones of rows of three charging tubes 8, 9, 10, in the roof of firing chambers. Charging equipment 31 supplies fuel 32 in controlled doses to the feed tube 29 which is connected to a source of compressed air from the direction of arrow I. A valve 33 controls the intermittent supply of compressed air which blows fluid on to a baffle plate 23 of the equipment 11 so that it is distributed over the entire cross-section of the kiln.
Patent GB-155552-A (GB)
Title: Three-speed hub for cycle and motor cycle wheels and the like
IPC: B62M11/14
Filed: 1920-12-17
Abstract: 155,552. Roes, J. Nov. 14, 1919, [Convention date]. Variable-speed gearing is contained in the hub of a cycle wheel. The hub is of aluminium and comprises two parts 1, 2, connected by a nut 4, and carrying planet spindles 5, 6. A gear 28 is secured to the hub-part 1 by a steel ring 31.
Patent GB-435384-A (GB)
Title: Improvements in or relating to the manufacture of artificial fibres
IPC: D01D5/26
Filed: 1933-12-19
Abstract: <PICT:0435384/IV/1> In a method of manufacturing artificial fibres wherein coagulable solution fed to an extrusion nozzle is subdivided at regular intervals in such manner that the solution is extruded from the nozzle as separated or staple fibres the subdivision of the solution is effected in or at the perforated cap of the nozzle. The extrusion nozzle 6 is fitted at its lower end with a perforated cap 7 secured in position on the nozzle by means of a nut 8 so as to form at the end of the nozzle a small chamber 9. The solution is fed to a chamber 10 in the upper end of the nozzle by a pipe 11, filter 12, cock 13, and supply pipe 14, and passes from thence by passages 15 to the lower end of the nozzle.  A similar chamber 16 at the other side of the nozzle is supplied with air or other gas at a pressure higher than that of the solution by pipe 17, valve 18, cock 19 and supply pipe 20. Passages 21 lead from the chamber 16 to the chamber 9. Valve 17 is normally closed by a spring 22 positioned between a head 23 and the gland nut 24 on the exterior part of the spindle 17a.  The valve is intermittently opened against spring 22 by a rotary cam 25 co-operating with a lever 26 pivoted at 27 and connected by a link 28 with one arm of a lever 29 pivoted at 30.  When the valve is opened, the compressed air flows down pipe 21 and ejects the solution in chamber while stopping the delivery of fresh solution. The lower end of nozzle 6 is positioned in the flared upper end of a tube 31 mounted in an enclosing casing 32 provided with an inlet 33 for coagulating fluid which flows down tube 31, coagulating the extruding fibres and drawing them through the nozzle to their correct form and length due to its speed along tube 31 being greater than the speed of extrusion of the fibres.  The top part 32a of the casing 32 may have radial baffies 32b to prevent swirling of the coagulating fluid as it enters.  The fibres are fed into a collecting tank 34 on to a conical member 35 resting on a horizontal perforated partition 36 which permits the escape of coagulating fluid and on which the fibres pile themselves in ordered arrangement around the member 35 to form an endless band or hank.  In a modification the solution is extruded through an annular perforated cap on the nozzle, and the solution and compressed fluid are supplied to the chamber between the cap and the end of the nozzle along concentric annul .  Coagulating fluid is applied down a central tube and spread over a spreading device to mix thoroughly with the fibre as well as being supplied to the outside of the film bundles.
Patent GB-1398050-A (GB)
Title: 2,16-dipiperazinyl steroids
IPC: C07J71/00
Filed: 1973-07-26
Abstract: 1398050 2,16-Dipiperazinyl steroids RICHTER GEDEON VEGYESZETI GYAR RT 26 July 1973 [27 July 1972] 35686/73 Heading C2U The invention comprises compounds of formulae (wherein R is H or C 1-7  acyl; R 1  is C 1-6  alkyl, allyl, hydroxyethyl or acetoxyethyl; R 2  is H, C 1-6  alkyl, benzyl or allyl; X is H; Y is hydroxy or C 1-7  acyloxy; or X and Y together are oxo; and Z is Cl, Br, I, OH, mesyloxy or tosyloxy); and their preparation from III (infra) by reaction with piperazine mono-N-substituted by R 1 , to give I (R=H; X+Y=oxo) from which other compounds I and II are prepared by appropriate steps selected from 17-reduction, 3/17-acylation and salification. Example 9 alludes to a "trimethobromide" by-product. 2α,3α; 16α,17α-Diepoxy-17#-acetoxy-5α-androstane (III) is prepared from 5α-androst-2-en- 17-one via 17-acetoxy-5α-androsta-2-16-diene. Muscle-relaxing compositions for parenteral administration comprise a compound I or II and a carrier or diluent.
Patent GB-341204-A (GB)
Title: Improved metal boat and the manufacture thereof
IPC: B63B3/00
Filed: 1929-11-22
Abstract: 341,204. Cast metal boats. BIRMINGHAM ALUMINIUM CASTING (1903), CO., Ltd. and PRITCHARD, P., Dartmouth Road, Smethwick, Staffordshire. Nov. 22, 1929, No. 35755. [Class 113 (ii).] Metal boats are cast in aluminium or light metal alloys in longitudinal sections which meet in an inturned longitudinal flange b, Fig. 4, which in the case of a hydroplane vessel is doubled at the step p, Fig. 6, and becomes an external flange c at the cutwater. The sections are united by riveting or welding. Longitudinal strakes g, f, and gunwale e are also provided. A separate transom j bears against internal flanges on the ends of the sections and is provided with stiffeners k for the support of an outboard motor.
Patent GB-388167-A (GB)
Title: Improvements in or relating to the treatment of webs of material
IPC: D06C7/00
Filed: 1931-12-29
Abstract: 388,167. Drying webs of material. SPOONER, W. W., Ashbrook, Ilkley, Yorkshire. Dec. 29, 1931, No. 35926. [Class 34 (i).] Webs of material, such as cloth or warp, are treated with a gaseous fluid such as air for drying or conditioning the material, the air being forced to flow in a closed circuit and projected through nozzles 30 at a relatively high velocity of impingement on to the material 12 which may be caused to pass between the two rows of nozzles. Coolers, heaters, or humidifiers are provided for the air in circulation, and means may be provided to allow a portion of the air to escape. In a modification a stream of fluid is directed along a path parallel with that of the web and the speed of the fluid is increased locally at spaced points by directing it at these points on to both sides of the web at high velocity and at an angle to the web. Different forms of nozzles may be used.
Patent GB-818266-A (GB)
Title: Improvements in or relating to change-speed gears for cycles
Inventor: MILLWARD EDWARD ARTHUR
IPC: F16H9/24
Filed: 1956-11-24
Abstract: 818,266. Variable-speed chain gearing RESILION CO. Ltd. Nov. 22, 1957 [Nov. 24, 1956], No. 36021/56. Class 80 (2). In variable-speed gearing of the kind in which changes are obtained by shifting the chain from one to another of different size sprockets, a main sleeve e secured to a fixed bracket f of the gear is internally threaded at m to receive an adjustable stop sleeve n which is abutted by a spindle d sliding in the main sleeve e and carrying the support a for the jockey sprockets, the outermost position of the spindle being determined by the adjustment of the stopsleeve. The stop-sleeve n is chambered to provide a run for the speed-changing control chain and has a slot q wherein the chain runs and prevents turning of the sleeve n from its adjusted position. A second slot r having a width of an inner chain link may be provided to enable the gear to be locked in any one ratio. The spindle d is urged inwardly and rotated to take up the slack in the chain in a known manner by a helical spring j.
Patent GB-1033940-A (GB)
Title: Viewing apparatus for high vacuum systems
Inventor: HANKS CHADLES WENDELL
IPC: C23C14/52
Filed: 1963-09-13
Abstract: 1,033,940. Observation devices for furnaces. TEMESCAL METALLURGICAL CORPORATION. Sept. 13, 1963, No. 36129/63. Heading F4B. [Also in Divisions G2 and H1] The window assembly of a vacuum tube comprises a nest of elongated, coaxial conical members, a lens at the small end of the conical members, and means for directing a gas flow (e.g. argon) into the small end of the conical members. The assembly may be used in a vacuum casting furnace or for vacuum coating by evaporation and deposition, e.g. of aluminium heated by two or more electron beams, and serves to keep the window free of deposited material. The tube is continuously evacuated, e.g. to 0À1 micron. The dimensions of the elongated conical members are such that, used with the lens and a ground-glass screen, the field of view extends over a greater angle than the maximum angle subtended by light-rays passing through the tube (see Fig. 2, not shown).
Patent GB-833825-A (GB)
Title: Improvements relating to vulcanizing moulds for retreading tyres
IPC: B29D30/54
Filed: 1957-11-20
Abstract: 833,825. Tyre-retreading moulds. SUPER MOLD CORPORATION OF CALIFORNIA. Nov. 20, 1957 [April 29, 1957], No. 36174/57. Class 87(2). A tyre retreading mould having sections 4 heated by steam passages 10 and held together by a clamping ring 5 connected at its free ends by a latch 6, is provided with pivotally mounted rings 28 which may be locked to the mould by a withdrawable pin 22 and forced, by pneumatic pistons, into engagement with the rims on which the tyre is mounted, before inflation of the curing bag 39, to ensure that the tyre is held centrally in the mould during vulcanization. After inflation of the curing bag 1 and centering of the tyre, the rings are retracted before the vulcanizing operation. Both rings are operated from the same pneumatic system to ensure that the pressures exerted on the rings are the same.
Patent GB-1377625-A (GB)
Title: Pyroelectric materials
IPC: H01L37/02
Filed: 1972-09-01
Abstract: 1377625 Pyroelectric devices; image pick-up tubes DEFENCE SECRETARY OF STATE FOR 1 Sept 1972 [3 Aug 1971] 36348/71 Headings H1K and H1D A pyroelectric device for use in heat-sensitive vidicons, pyrometers, or thermometers has a polarized body comprising oxidic ferroelectric particles of size less than 200 Ám. dispersed in a non-ferroelectric insulating matrix. The body is polarized during manufacture by the application of a unidirectional field. Suitable ferroelectrics are lead zircotitanate, lead barium niobate, and an aggregate of lead magnesium niobate and lead zircotitanate. Binders may be waxes, glues, glasses, plastics and resins. Epoxy and acrylic resins are specified. Methods of making the body of the device are summarized in Claims 7 to 12. Silver paint electrodes are used.