baber/WOPTO huggingface dataset:
Patent GB-764196-A (GB)
Title: Improvements relating to devices for advancing strip material step-by-step
Inventor: COX DENNIS GEORGE EDWIN
IPC: B67B3/064
Filed: 1954-08-23
Abstract: 764,196. Feeding webs. MILKFILLERS, Ltd. Aug. 11, 1955 [Aug. 23, 1954], No. 24526/54. Class 100(1) A device for intermittently feeding perforated strip material comprises a bed plate 1 for supporting the strip as it is advanced by a reciprocating slide plate 6 carrying pins 15 and 16 which engage slots 2 and 4 in the bed plate 1, means automatically operable on completion of backward movement of the slide plate 1 to urge. the slide plate into a position in which the pins protrude through the slots into engagement with perforations in the strip, and means automatically operable on completion of the forward movement of the slide plate to urge the slide plate into a position in which the pins are below the bed plate. The means for raising and lowering the slide plate may be leaf springs, not shown, bearing against the top and bottom of the slide plate which is provided with apertures 17 so arranged that at the forward and rearward positions of the slide plate the bottom and top leaf springs respectively engage such apertures and are thus rendered ineffective in turn. The downward and upward movements of the slide plate are, as shown, assisted by ramps 18 which ride over pins 19 on the forward stroke and under them during backward movement. The slide plate is reciprocated by an adjustable link 9 connected through ball races 10 with an eccentric 11 on. a shaft 12 rotated in synchronism with the movement of a punch, not shown. The strip is guided between guides 20 and pressed down by a hinged weighted plate 21.
Patent GB-1376579-A (GB)
Title: Travelling wave tubes
IPC: H01J25/38
Filed: 1973-05-23
Abstract: 1376579 Travelling wave tubes SPERRY RAND CORP 23 May 1973 [1 June 1972] 24552/73 Heading H1D A travelling wave tube comprises an electron beam source including a cathode 6, an anode 9 and a grid 15, first and second slow wave structures 23, 24 spaced apart between planes 52 and 56, and a collector assembly (3) Fig. lb (not shown), at the right-hand end of structure 24. A low-level signal input 26 is connected to the left-hand end of structure 23 and a highlevel signal input 27 is connected to the lefthand end of structure 24. Input signals are connected to the input 26 or 27 according to their levels and an appropriate potential is applied to the grid 15 to give a substantially uniform gain over a wide range of input signal levels and frequencies. The structure 23 is supported by ceramic rods 53 which have a lossy coating 72 having a maximum thickness at the right-hand end. Similar ceramic rods (60) supporting the structure 24 have a lossy coating (73) which has a maximum thickness about the middle of the rods and falls in an approximately Gaussian distribution towards the ends. The collector assembly (3) includes a cavity (38) made from oxygen-free copper supported in a cylinder (39) of beryllium oxide.
Patent GB-593032-A (GB)
Title: Improvements in or relating to aircraft
IPC: B60V1/00
Filed: 1944-12-08
Abstract: 593,032. Aircraft. WARNER, D. K. Dec. 8, 1944, No. 24617. [Class 4] A lifting member of an aircraft, either fuselage or wing, has the lateral extremities of rounded, thickened form and projecting downwardly below the member, an engine being mounted in each extremity and driving a propeller located immediately in front of the leading edge of the member, the direction of rotation being such that the blades move upwardly where they pass in front of the member and downwardly beyond the extremities. As shown in Fig. 1, propellers 16. are mounted at the rounded and thickened forward extremities 1b, 1c of the fuselage which is designed as a lifting member, the propellers being rotated in opposite directions so that their blades move upwardly in front of the leading edge 1a. The main wings 5 are mounted at the tail of the fuselage and carry fin and rudder assemblies 6 at the tips. Adjustable auxiliary aerofoils 23 are mounted in front of the leading edges of the wings. 5, and stub wings 7 provided with ailerons are located near the front end of the fuselage. Slots 4 are formed in the upper. surface of the fuselage, through which air is ejected rearwardly, and a jet is directed downwardly and rearwardly through a slot 3 at the forward end of the fuselage. The aircraft may be provided with an open pressure chamber enabling it to skim over land or water, as described in Specification 592,756. Fig. 2 shows a construction in which the propellers 16 are.carried at the ends of a wing 17 mounted above the main planes 5 at the tail of the fuselage.The ends 6 -of the planes 5 are curved upwardly to follow the tip circles of the propellers. According to a further modification, Fig. 3 (not shown), the central spanwise portion of the wing 17 comprises two separate aerofoil members, the forward one of which has a chord of about onefifth, that of the .rear member, and is set at a smaller incidence. Six propellers may be carried in pairs by three wings such as 17, one mounted over the tail of the fuselage, and the others near the tips of the main planes 5, Fig. 4 (not shown).
Patent GB-407006-A (GB)
Title: Improvements in or relating to mowing or reaping machines
IPC: A01D34/16
Filed: 1932-09-03
Abstract: 407,006. Reaping and mowing machines. NICHOLSON, A. C., Trent Iron Works, Newark-on-Trent. Sept. 3, 1932, Nos. 24618 and 24648. [Class 6 (iii).] To prevent dirt accumulating under the lower set of knives in a reaping or mowing machine having two co-operating sets of knives one set being reciprocatable relatively to the other which is usually stationary and which may be moved longitudinally over the faces on the finger bar that normally support it, means are provided to withhold positively the knives of the lower set at their front and rear extremities from upward movement and a transverse gap or clearance opening may be provided across the faces of the fingers. In the form shown in Fig. 5 the forward end of each knife 10 of the lower set enters a groove 13 in its cooperating finger 3 and the bar 12, to which the knives are secured, is dovetailed to fit a correspondingly shaped recess and so prevents rising of the rear end of the knife. The dovetailed recess may be formed in the cutter bar 1 or may be cut in the finger. The bar 12 may be rectangular in cross-section being held down then by an overhanging part of the rubbing plates 5 or other devices. Spaces may be provided between the individual knives or group of knives to permit dirt to work to the rear the sides of such spaces being inclined, curved or serrated in plan and the edges undercut. In a modified method of preventing dirt from accumulating under the blades a transverse clearance opening 16 is provided below the blades ; this opening may be extended as shown at 17. A gap is also preferably provided between the two knife bars to allow dirt to work out. To lock the stationary set of knives against accidental movement a fixed stop 23, Fig. 7, is provided at the outer end of the cutter mechanism against which the end of the knife bar 12 abuts : this stop is preferably undercut and the knife bar end correspondingly chamfered. The bar is held pressed up against the stop by a lever 24 that is moved by an adjusting screw 26. In the second Provisional Specification the stationary set of knives is stated to be held locked by a bolt passing through holes in the knife bar and the frame or by a latch ; the stationary knives may be made in sections or instead of a knife bar with blades secured to it the knife bar and blades may be stamped out of a piece of steel, a longitudinal corrugation taking the place of the knife bar.
Patent GB-1381189-A (GB)
Title: Manufacture of copper clad aluminium wire
IPC: B21C23/00
Filed: 1972-05-25
Abstract: 1381189 Making composite wire BRITISH INSULATED CALLENDER'S CABLES Ltd 24 May 1973 [25 May 1972] 24637/72 Headings B3A and B3P A composite copper or copper alloy sheathed aluminium or aluminium alloy wire is made from a composite billet with a nickel or nickel alloy barrier layer between the billet core and sheath by effecting a reduction to the billet. The reduction is effected by cold drawing with intermediate annealing although the first reduction may be by hydrostatic extrusion. The sheath may be tubular and placed over a core electroplated with the barrier metal. Alternatively the sheath may be electroplated on the barriermetal. The billet parts are degreased and cleaned of oxide before assembly. The barrier metal prevents inter-diffusion of the copper and aluminium and consequent deterioration of the bonding.
Patent GB-481445-A (GB)
Title: Braun tube
IPC: H01J29/87
Filed: 1936-09-10
Abstract: 481,445. Cathode-ray tubes. RADIOAKT.-GES. D. S. LOEWE. Sept. 10, 1936, No. 24681. Convention date, Sept. 25, 1935. [Class 39 (i)] In a Braun tube 1 in which the end of the bulb serving as a base for the luminous screen presents a flat surface 2 and the mechanical strength of the tube is ensured by distributing the pressure on the end in one or more antechambers 3, the innermost antechamber is formed from a bowl-shaped member having part of its lateral wall 4 slipped over a part of the lateral wall of the tube. The antechamber may be fused or cemented to the tube. The intermediate pressure may, with a single antechamber, be 200 mms.; this may be obtained by pumping or by evaporation of a getter. If a getter is used, obscuration of the image by reflecting layers of getter metal is avoided, for example by placing the getter in a side-chamber, Fig. 2 (not shown), or in a bulge of the antechamber screened off by a piece of mica, Fig. 3 (not shown). A manometer permanently attached to the ante-chamber may give a continuous indication of the pressure therein. Interfering reflections may be avoided by inclining the surface of the ante-chamber, Fig. 3 (not shown), or by making the surface concave to'the outside, Fig. 4 (not shown). If a number of antechambers are used they may be given flat end faces. Specification. 461,334 is referred to.
Patent GB-926131-A (GB)
Title: Improvements in and relating to fluid-pressure control valve devices
IPC: G05D16/10
Filed: 1958-07-31
Abstract: 926,131. Valves. FUNDITOR Ltd., and W. R. SPITTLE. July 31, 1959 [July 31, 1958], No. 24721/58. Class 135. A fluid-pressure control valve device comprises a body 1, 2, 3 formed with a first bore 4 which is adapted to be connected into a fluid conduit, and a second bore 10, these bores being interconnected at opposite ends by passages 5, 12, and 11, a one-way valve 7 being arranged to control the flow from inlet passage 5 through the first bore 4, and a doubleended valve piston 13 reciprocable in the second bore 10 and subject to the pressure difference across the one-way valve, this valve piston being operable to allow escape of fluid downstream of the one-way valve through a port 25 under reversed pressure conditions at the inlet and outlet, e.g. in a fluid-operated rock-crushing machine if excessive resistance to operation of the machine is encountered. Leakage from the inlet pressure end of the piston toward the other end is drained through a conection 23.
Patent GB-702522-A (GB)
Title: Improvements in means for controlling the degree of stretch of yarn in a yarn-sizingmachine
IPC: D06B3/34
Filed: 1949-09-27
Abstract: 702,522. Sizing yarns. HOLT, Ltd., T., and HOLT, F. Dec. 12, 1950 [Sept. 27, 1949], No. 24731/49. Class 120(3) [Also in Groups VIII and XXIV] A yarn sizing machine comprises a draw roller 18, quetch roller 12, size bath 13, squeeze rollers 14, 15, drying cylinders 16, a delivery roller 17 and a receiving roller 11, and means are included for driving the draw. and quetch rollers at different speeds to impart stretch to the yarn, said means comprising a differential gear 24 one side of which is driven from the receiving roller 11, a conical drum 27 driven from the delivery roller 17, a friction disc 26 bearing against the cone and slidable Upon a shaft 25 connected to the cage of the differential gear, and a P.I.V. (Registered Trade Mark) gear the control screw 35 of which is driven from the differential gear 24. The draw and quetch rollers are driven through the shafts 37 and 38 respectively of the P.I.V. gear, and the delivery and receiving rollers 17 and 11 are rotated by the passage of the yarn. In order to vary the degree of stretch, the disc 26 may be moved along the cone 27. so causing a rotation of a sprocket 32 of the differential gear which in turn drives the control screw 35 of the P.I.V. gear varying the ratio of the speeds of rollers 18 and 12. Since the rollers 11 and 17 are driven form the rollers 12 and 18 by the passage of the yarn, the speeds of the rollers-18 and 12 will alter the speeds of the drum 27 and the shaft 23 of the differential until the original ratio of the speed of the shaft 25 to that of shaft 23 is obtained and there is no further rotation of the control screw 35. The disc 26 is provided with a scale to afford visual indication of the degree of stretch. Measuring devices may be fitted to the rollers 11 and 17 to indicate the length of yarn passing each.
Patent GB-656238-A (GB)
Title: Improvements in and relating to roller covers, especially for use in connection withtextile machinery
IPC: D01H5/74
Filed: 1947-09-09
Abstract: 656,238. Covers or cots for textile rollers. DAYTON RUBBER CO. Sept. 9, 1947, No. 24789. Convention date, Jan 2. [Class 120(ii)] [Also in Group VIII] A roller cover or cot for drafting or spinning machinery comprises a neutral axis section 15, Fig. 3, of rubber reinforced by elements containing glass fibres, a compression section 14 of soft cushioning rubber and a tension section 16 of harder resilient rubber, the three sections being integrally united by vulcanizing. The rubber may be natural or synthetic, and the elements containing glass fibres may be two parallel layers of glass cords 17, or a cable 21, Fig. 4, formed of a plurality of cords 22 each built up of short glass staples. The cords forming the cable may be coated with rubber or resin. The glass fibre elements may comprise a number of parallel independent glass fibres 26, Fig. 6, of different lengths calendered into the rubber, or a number of glass fibres matted into a blanket. The reinforcing elements may also incorporate textile cords or fibres or plastic materials in combination with the glass fibres. The cover may be stretched on to a roller, or may be cemented in place. Specification 482,774 is referred to.
Patent GB-1384795-A (GB)
Title: Raking devices
IPC: A01D78/12
Filed: 1972-05-26
Abstract: 1384795 Hay rakes SPERRY RAND CORP 26 May 1972 [2 June 1971] 24842/72 Heading A1F To improve windrowing, a pair of laterally spaced, rearwardly extending baffles or disposed between a pair of rotary rake heads and cooperate with the tines of the rake heads to strip crop therefrom. The tines of each rake head are moved by a cam 98 between a downward crop engaging position at the outboard side of the respective rotor and an elevated position thereby, depositing the crop in a windrow and the baffles are located to cooperate with the tines when in the elevated position. The baffles may each comprise either an upper and a lower. plate 154, 152 which are vertically adjustable relative to each other by means of bolts for varying the height of each baffle, or a rod which can be bent to cooperate with the tines. The baffles are laterally adjustable for varying the width of the windrow being formed. The rake heads are driven through respective gear boxes 44, 46 interlinked by a shaft 70 and a gear box 48 which has high and low speed input shafts 50, 52 connectible to a tractor's power take off point. The implement is towed by a draught bar 24 and a 'U-shaped' yoke 16 having points 18, 22 for attachment to a tractor's three point linkage. A lateral positioning link 32 is mounted on the yoke 16 and is provided with spaced apertures 38, 40 for setting the implement in either an 'offset' or directly behind position. A pair of spaced stops 42 on the link 32 provide a third operative position in which the beam 24 'floats' between these stops. For Figures see next column
Patent GB-280681-A (GB)
Title: Display price ticket holder
IPC: G09F3/16
Filed: 1926-10-07
Abstract: 280,681. Russell, E. Oct. 7, 1926. Label holders.- Price ticket holders are formed by manipulation from a. blank formed with cut-outs A, B, C, and raised tongues D, as shown in Fig. 1. The L-shaped holder shown in Fig. 2 is formed by bending the blank about the middle line. Fig. 3 shows a holder formed by cutting the blank at the bottom of the cut-out B, a clip K being then bent from the material for affixing to glass-covered show bowls &c. Fig. 5 shows a holder formed by cutting across the top of the cut-out C of the blank.
Patent GB-436034-A (GB)
Title: Improvements in and relating to centrifugal pumps
IPC: F04D1/06
Filed: 1934-08-29
Abstract: 436,034. C e n t r i f u g a l pumps. WORTHINGTON-SIMPSON, Ltd., Lowfield Works, Newark - on - Trent.-(Worthington Pump & Machinery Corporation; Harrison, New Jersey, U.S.A.) Aug. 29, 1934, No. 24900. [Class 110 (i)] The balanced pairs of stages ,of a centrifugal pump are separated by walls 7 which are formed integral with the longitudinal split casing. The stages are connected by U-shaped conduits which pass alternately above and below the casing and have expanding nozzles 10. When the number of stages is uneven, the first is left unpaired and the end thrust balanced by any ordinary means. The walls 7 carry intermediate bearings 7<a> for the driving shaft.
Patent GB-1159529-A (GB)
Title: Industrial Production of O,S-Dialkoxycarbonylthiamine Compounds
IPC: A61K31/51
Filed: 1967-05-30
Abstract: 1,159,529. Dialkoxycarbonylthiamines. SHIONOGI & CO. Ltd. 30 May, 1967 [31 May, 1966], No. 24910/67. Addition to 944,641. Heading C2V. O,S-Dialkoxycarbonylthiamines (as described in Specification 944,641) are prepared by reacting an S-alkali metal salt of thiol type thiamine with 1À0 to 1À2 mol. equivalent of an alkyl chlorocarbonate in an aqueous medium or a mixed medium of water and an organic solvent to obtain an S-alkoxy carbonylthiamine, reacting the S-alkoxycarbonylthiamine with 1À0 to 1À2 mol. equivalent of an alkali metal hydroxide in an aqueous medium or mixed medium of water and an organic solvent to obtain an S- alkali metal salt of O-alkoxycarbonylthiamine and then reacting the S-alkali metal salts of O-alkoxycarbonylthiamine with 1À0 to 1À2 mol. equivalent of alkyl chlorocarbonate in an aqueous medium or a mixed medium of water and an organic solvent. Alternatively, the starting material may be an S-alkoxycarbonylthiamine which is reacted first with alkali metal hydroxide as above to obtain the salt of the O- alkoxycarbonylthiamine, and this is reacted with the alkyl chlorocarbonate as above to obtain the O,S-dialkoxycarbonylthiamine compound. In examples, the starting materials are the sodium and potassium salts of thiol type thiamine, S-ethoxycarbonylthiamine, S-nbutoxycarbonylthiamine and S-methoxycarbonylthiamine, and the other reactants are sodium and potassium hydroxide, ethyl chlorocarbonate, methyl chlorocarbonate and n-butyl chlorocarbonate.
Patent GB-202534-A (GB)
Title: Improvements in and relating to ridge roof ventilators and the like
IPC: E04D13/035
Filed: 1922-09-15
Abstract: 202,534. McNaught, W. Sept. 15, 1922. Ventitators.-A ridge-roof ventilator comprises a pair of glass frames 7 hinged at their lower edges to purlins 1, extending above the roof 4, and adapted to abut against each other at their upper ends, one of the frames having a bar 13 to overlap the joint 12. To prevent rain lodging on the frames 7 the glass 10 is fitted into the top rail 6 and rests on the bottom rail 5 between which and the purlin 1 lead flashing 11 is provided. Inclined rods 21 are connected by ball- and-socket joints 22 to the frames 7 and to a bar 18 which is supported on rollers 16 carried by tie-rods 15. The bar 18 is embraced by U- shaped guides 19 and is adapted to be moved lengthwise on the rollers 16 by a rope or the like to open or close the frames 7.
Patent GB-701337-A (GB)
Title: Improvements in or relating to kilns for baking tiles, bricks and like ceramic articles
IPC: F27B13/02
Filed: 1951-10-25
Abstract: 701,337. Brick kilns. MIGEON, A. R. E. Oct. 25, 1951 [Oct. 27, 1950], No. 25021/51. Class 51 (2) A kiln for baking bricks, tiles &c. is divided by permanent walls 6 into a series of parallel chambers 1a, 1b, 1-1h communicating with each other at alternate ends through openings 2, a flue 3, which may be underground, returning combustion gases from the last gallery to the first. Charging doors 4a, 4b are provided along one side of the kiln and discharging doors 5a, 5b on the other.
Patent GB-268399-A (GB)
Title: Pistons
IPC: F02F3/04
Filed: 1925-10-07
Abstract: 268,399. Nelson, A. L. Oct. 7, 1925. Pistons.-A piston comprises a head 26, Fig. 1, with one or two extensions 16 carrying gudgeonpin bosses 13, and a skirt connected to the head or bosses by steel struts cast with the bosses and slipper portions of the skirts transversely to the gudgeon pin, and having tongues 18 and dovetails 18<1> to effect a firm connection and openings 19. The struts may be made single or of two or more stampings, tubes, or bars, and have a relatively low coefficient of expansion, may be made of material known under the Trade Mark " Invar " steel, and may be non-parallel. The piston head and skirt are cast in one and separated by machining, or one or both parts 20 of the skirt my be left intact with the head. The head and skirt are made of an aluminium alloy. The struts may be formed from part of the sides of a thin steel cylinder forming the skirt. The struts may be shaped as shown in Fig. 7 to bring the skirt towards the centre of the piston when heated. Transverse strengthening ridges may be provided on the bosses. The struts may be made in two pieces connected by the metal of the head and bosses. The construction may be modified for use with a single gudgeon-pin and forked connecting-rod. The gudgeon-pin bosses need not be integral with the head; the metal of the head may be cast about the struts independently of the bosses. The boss or bosses may be integral with the struts and the skirt, the lower parts of which would be left undivided when using metal of low thermal expansion. In lieu of casting, the component parts of the piston may be secured by welding, bolts, screws, &c. In the construction shown in Fig. 8, the head has webbed extensions which carry the bosses 27 which are connected to the skirt by webs 29, 32. The skirt has upward extensions 33 at opposite sides connected by dove-tailed struts 34 the upper parts of which are embedded in the bosses. In lieu of dovetails, the struts may be bent at their ends or otherwise formed to increase the anchorage, and may be made of separate single flat bars. The webs 29, 32 may be omitted, the skirt being entirely supported by the struts. The rim may be slit or slotted for expansion.