baber/WOPTO huggingface dataset:
Patent GB-1124493-A (GB)
Title: Apparatus for detecting weft strains of textiles
Inventor: ASADA YOSHIO
IPC: D06H3/12
Filed: 1965-09-03
Abstract: 1,124,493. Photo-electric textile inspection. KYOTO KIKAI, K.K. Sept. 3, 1965 [May 28, 1965], No.37732/65. Heading G1A. Apparatus for detecting weft strains comprises a first photo-electric system generating pulses at a frequency equal to the number of wefts passing per unit time, and a second photo-electric system comprising a light source energized by the pulses and a receiver for images of the wefts formed by transmission of light through the textile which receiver includes means to scan the images with a photo-electric cell. Pulse generating system Fig. 6 (not shown). The first photo-electric system comprises a lamp 30 and condenser lens 31 directing light through the textile 1 and a receiver comprising a cylindrical lens 33 and a semi-cylindrical lens 35 with crossed axes, a circular aperture 36' and a photo-cell 37 which generates the series of pulses having substantially the same amplitude and shape regardless of the angle of the wefts. Weft strain detection system. Fig. 2. The pulses from the first photo-electric system energize the fluorescent lamp 8 of the second system. A condensing lens 11 forms a linear beam of light parallel to the normal weft direction of the textile 1. An image of the wefts is formed on the slit 15 by the lens 13 and is scanned by a disc 16 having a number of radial slits each backed by a photo-cell 22. The frequency of the output of the cells 22, which are connected in parallel, depends upon the angle the wefts make with the slit 15. The output is applied to circuitry which generates pulses of accurate amplitude and shape at the frequency of the output to give when smoothed a D.C. voltage indicative of the angle between the wefts and the slit 15. Weft bowing is detected by locating two such detection systems across the textile with their slits 15 making the same angle with the normal weft direction, Fig. 8 (not shown), and connecting their outputs in opposition. Skewed wefts are detected by two systems making opposite angles with the normal weft direction, Fig. 9 (not shown).
Patent GB-1092979-A (GB)
Title: Control cable assemblies
Inventor: MANNING WALTER
IPC: F16C1/10
Filed: 1966-08-24
Abstract: 1,092,979. Bowden mechanisms. FORD MOTOR CO. Ltd. Aug. 24, 1966, No. 37881/66. Heading F2K. A Bowden mechanism comprises a multistrand cable 11, having end fittings 17, 18, extending through a flexible casing 12 formed of a close-coiled steel wire sheath 13 having a lining 14 of nylon or other low-friction material, springs 25, 26 abutting flanges 15, 16 secured on the ends of the casing 12 acting on the end fittings 17, 18 to maintain the cable 11 in tension and the casing 12 in compression. The flanges 15, 16 are adapted for mounting in fixed structure (not shown). Flexible seals 27, 28 surrounding the springs retain lubricant and prevent the ingress of dirt and moisture into the mechanism. Since the seals form, with the flanges 15,16 and the end fittings 17, 18, two air-tight spaces, these spaces are interconnected by the clearance space between the cable and the casing or by grooves in the lining 14, or by a longitudinal space within the cable to prevent pressure build up in the spaces on actuation of the mechanism.
Patent GB-598404-A (GB)
Title: Improvements in typewriting or like machines
IPC: B41J29/13
Filed: 1945-05-02
Abstract: 598,404. Typewriters &c. ROYAL TYPEWRITER CO., Inc. May 2, 1945, No. 37908/46. Convention date, June 2, 1944. Divided out of 598,374. Drawings to Specification. [Class 100 (iv)] [Also in Group XXV] In a typewriter or like machine, a closure for an access opening in the framing is pivoted to the framing by a spring hinge (see Group XXV). The general arrangement is similar to that described in Specification 598,374.
Patent GB-369227-A (GB)
Title: Improvements in circular knitting machines
IPC: D04B15/58
Filed: 1930-12-16
Abstract: 369,227. Knitting-machines. BREWIN, W., (trading as BREWIN & CO., W.), Eastern Boulevard, Leicester. Dec. 16, 1930, No. 37915. [Class 74 (ii).] A circular machine of the kind having a trapper for eacl yarn feeder is provided witl trappers which are movable bodily, and with means operable when a feeder is moved selectively to an inoperative position to move the associated trapper to a posi tion for trapping thread. The in vention is de scribed in connec. tion with a smal diameter machine of the stationary needle cylinder type for making rib tops of children's stockings. The yarn trappers comprise a number of vertically disposed plates 25 pressed together by a common spring 26 and mounted upon a slidable member 23 so that the trappers can be moved across the needle circle. Each pair of the plates 25 constitutes a trapper for one of the yarns. A cam plate 33, movable vertically under pattern drum control, is provided for engaging a stepped element 32, to rotate a spindle 31 for moving the member 23 to bring any desired pair of trapping plates 25 into position to receive a withdrawn yarn. Apertures or spaces 25b are provided in the plates 25 to allow loose pieces of yarn to be cleared from the trappers. A cutting device common to all of the yarns may be provided.
Patent GB-832364-A (GB)
Title: An improved fastener
Inventor: FERNBERG ERIC BIRGER
IPC: F16B9/02
Filed: 1956-12-12
Abstract: 832,364. Securing knobs on shafts. F.T. PRODUCTS Ltd. Dec. 9, 1957 [Dec. 12, 1956; Jan. 30, 1957], Nos. 38006/56 and 3284/57. Class 80 (2). [Also in Group XXV] A fastener for securing, say, a. knob 41 to a shaft 39 having a flat 40 on its end comprises a flat strip of spring material bent so that at least a major portion of its length is of approximately horseshoe shape having a web 33 and two limbs 31, 32, the limbs 31, 32 first diverging outwardly from the web up to a position of maximum spread between each other and then converging toward each other to provide guiding faces in the web and in the limbs, there being formed in one limb a pointed prong having its point located adjacent the position of maximum spread between the limbs and directed outwardly with respect to the horseshoe and obliquely with respect to the major axis thereof. The fastener has preferably two prongs 36, 37, and either limb may be extended as at 31A to lie adjacent the inside of the other limb. The knob 41 is provided with a flat-sided bore 43 opening out of which is a recess 44 in which is positioned the fastener the prongs 36, 37 of which bite into one wall of the recess to retain the fastener therein. The fastener may be inserted into the recess web first or web last, the prongs 36, 37 being directed in the correct retaining direction, and the fastener is preferably reinforced by means of a U-shaped spring inserted therein or made or two-ply form from two strips of spring material.
Patent GB-356061-A (GB)
IPC: G09F13/26
Filed: 1930-12-17
Abstract: 356,061. Signs. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway- London.-(Assignees of Patent-Treuhand. Ges. fiir Elektrische Gl³hlampen; 11, Ehren-. bergstrasse, Berlin.) Dec. 17, 1930, No, 38068. Convention date, Feb. 24. [Class 3 (ii).] A warning sign comprising a plate 7 carrying an indication 11 is framed at its edge by an electric discharge tube 9. The plate 7 may be of glass, the design 11 being etched and illuminated edgewise by the tube 9, or alternatively of a single sheet of metal, two sheets of metal united at their edges but curved outwardly in the middle, or a piece of wire netting, the design 11 being formed by painting or embossing. The tube 9 is attached by clips'12 to the frame 8 holding the plate 7, and the end parts 10 containing the electrodes are housed within a casing 4 attached to the support 5.
Patent GB-800709-A (GB)
Title: Improvements in the preparation of orotic acid
Filed: 1956-12-13
Abstract: Orotic acid is made by condensing urea, in the presence of methanol, with an acid oxalacetic ester, for example with an ester of the formula ROOC-CH2-CO-COOH, wherein R is an organic radical such as an alkyl group, and treating the resultant product with alkali, such as sodium or potassium hydroxide, to give an alkali metal salt of orotic acid, which is subsequently converted into the free acid.  In a modification of the process, the monoester of oxalacetic acid is formed by partial saponification of a diester of oxalacetic acid and is then condensed in situ with urea in the presence of methanol. Examples describe the preparation of orotic acid according to the invention, from the monoethyl ester of oxalacetic acid and from the partially saponified diethyl ester of oxalacetic acid.
Patent GB-358812-A (GB)
Title: Improvements in and relating to pyrophoric lighters
IPC: F23Q2/48
Filed: 1930-12-19
Abstract: 358,812. Frictional pocket igniters. DUNHILL, Ltd., A. and DUNHILL, V., 137, High Street, Notting Hill Gate, London. Dec. 19, 1930, No. 38325. [Class 75 (iii).] A detachable unit adapted to replace the usual loose spring and adjusting screw in the flint tube 3 comprises a tube 7 having a screw-threaded portion 13 for engaging the internal threads in the tube 3 and provided at the inner end with a plunger 9 adapted to be pressed against the flint 6 by a coiled spring 8 or the like abutting against the permanently closed outer end of the tube 7. The forward movement of the plunger is limited by the abutment 10 coacting with the inturned end 12 of the tube. The plunger head is preferably approximately equal in length to the flint and the threaded portion 13 slightly longer. The plunger may be formed with a reduced stem portion 11 which fits in the spring.
Patent GB-933571-A (GB)
Title: Furniture assembly bracket
IPC: F16B12/48
Filed: 1960-11-08
Abstract: 933,571. Furniture joints. F. WILSON. Nov. 8, 1960, No. 38394/60. Class 52 (2). A spigot extending from the end of a leg is screwed into a captive plate detachably engaged in grooves in the corner of a furniture frame and draws the leg upwards against a second plate or against the under surfaces of the members of the frame. As shown, the down-turned edges 22a, 22b of trapezoidal plate 22 bite into the lower sides of grooves 24a, 24b and may be serrated to obtain a better grip. The end face of leg 21 is drawn into engagement with surfaces 23a, 23b. In another form (Fig. 6, not shown), a resilient plate is bowed downwardly so that its upwardly inclined edges bite into the upper sides of the grooves. Alternatively, the grooves may be downwardly inclined (Fig. 7, not shown). When the leg is not perpendicular to the surfaces 23a, 23b, it is drawn into clamping engagement with a further plate (Figs. 8-13, not shown) which spans across these surfaces. In these forms, the plates are stamped out with inclined central portions which lie flat against the end faces of the legs. The whole plate surface may be inclined and the lower plate may have upturned flanges extending around the outer edges of surfaces 23a, 23b. Both plates may be formed from a single piece of material.
Patent GB-1095687-A (GB)
Title: Process for the production of linear polyether resins
IPC: C08G59/62
Filed: 1966-08-26
Abstract: A process for the preparation of substantially linear thermoplastic resins comprises dissolving a dihydric phenol and a diglycidyl ether of a dihydric phenol in a ratio of 0.98-1.025 epoxy groups per phenolic hydroxy group in a solvent together with from 0.005-0.10 mol. per mol. of dihydric phenol of an alkaline catalyst, the solvent being a homogeneous mixture of an inert organic solvent and 10-20 wt. per cent of water, calculated on the weight of solvent mixture, to give a solution of 20-60 wt. per cent of the reactants; heating the reaction solution at 75-150 DEG  C. until the intrinsic viscosity of the product resin is at least 0.3 dl/g. at 50 DEG  C. in benzyl alcohol; removing the catalyst; and recovering the polymer and the solvent mixture. Inert organic solvents specified are methyl ethyl ketone, dioxan, tetrahydrofuran, dimethyl sulphoxide, dimethylformamide, dimethylacetamide, pyridine and ethylene glycol methyl ether.  The polymer may be recovered by steam distillation to remove the organic solvent as its azeotrope with water which can be used as the solvent mixture in the reaction, or by the addition of water to the polymer solution to precipitate the polymer.
Patent GB-303374-A (GB)
Title: Improvements in or relating to addressing and similar printing machines
IPC: B41L45/00
Filed: 1928-12-31
Abstract: 303,374. Addressograph, Ltd., (Assig. nees of Kindervater, A. H.). Dec. 31, 1927, [Convention date]. Ink-ribbon mechanism.-An addressing or similar printing machine is provided, in addition to the usual ink-ribbon, with a separate inkribbon for printing a reversed impression. This additional copy may be press copied or used for printing-off purposes in connection with mechanical book-keeping systems, or it may be made on transparent paper so as to be legible from the back. As shown in connection with a machine comprising a table q over which address-plates a are fec. to printing position beneath a platen e carried by an arm g oscillating about a pivot i. The usual ink-ribbon c, instead of passing over the top of the plate in position, passes underneath, and an additional ink-ribbon s passes over the top. The ribbon s is wound on spools m, m<1> mounted on arms l, l<1> fixed to the arm g, and the ribbon is fed forward in one direction or the other by means of pawls o, o<1> mounted on arms p, p<1> pivoted on the axles of the spools, the arms p, p<1> being oscillated at each printing operation by engagement with fixed stops r, r'.
Patent GB-1503395-A (GB)
Title: Pipe connector
IPC: F16L15/06
Filed: 1975-09-19
Abstract: 1503395 Pipe connectors ATTOCK OILFIELD EQUIPMENT CO Ltd 17 Sept 1976 [19 Sept 1975] 38510/75 Heading F2G A pin 2 and box 1 connector has complementary tapered buttress screw threads 11, 9, a frusto-conical shoulder 16 on the pin 2 engaging a substantially identical frusto-conical surface 7 on the end of the box 1 to prevent radial expansion of the box end and a frusto-conical shoulder 8 on the box 1 engaging a substantially identical frusto-conical surface on the end of the pin 2 to prevent radial contraction of the pin end. Sealing rings 17, 18 are provided. The pin 2 and box 1 may be of steel and may be welded at 4, 3 respectively to pipe sections.
Patent GB-907268-A (GB)
Title: A method of making a semi-conductor diode
IPC: H01L21/00
Filed: 1959-11-13
Abstract: 907,268. Semi-conductor devices. SARKES TARZIAN Inc. Nov. 13, 1959 [Nov. 14, 1958], No. 38541/59. Class 37. In a method of making a semi-conductor diode, a semi-conductor wafer 29 of one type conductivity, interposed between a solder wafer 28 and a wafer 30 including an impurity for producing an opposite type conductivity in the semi-conductor, is placed in a cylindrical recess in a jig 25, the recess having a concave, e.g. conical, bottom surface 27 so that upon melting the solder wafer is alloyed to the semi-conductor wafer in a non-uniform layer of substantial thickness at its centre tapering off to a relatively thin layer at its periphery. As shown, a wafer 29 of N-type conductivity Si is placed between a wafer 28 of pure Sn, or Sn including �% Sb or P, and wafers 30, 31 of pure A1 or Al containing 1% Ga or B, and Sn, respectively, in a graphite jig, a cylindrical weight 32 having a conical bottom surface 33 being placed over wafer 31, and the jig is heated to the alloying temperature of about 900� C. After formation of the PN junction 12, Fig. 1, the diode is heated to a temperature intermediate the alloying temperature and the melting points of the AL-Sn alloy and Sn dots 13, 16 and leads 14, 15 of Ag or Ag- or Au-plated Cu wire and Cu, respectively, are pressed into engagement with the opposite faces of the monocrystalline wafer 11. The diode is completely enclosed in a resilient, gas and liquid impervious member 20 of silicon rubber which is encased in a rigid impervious plastic member 21 of an epoxy resin as described in Divisional Specification 907,269. The epoxy resin contracts during the curing process and compresses the silicon rubber against the diode and leads 14, 15 to provide an hermetic seal. Specifications 855,381 and 894,255 also are referred to.
Patent GB-1048599-A (GB)
Title: High speed sheet feeding and overlapping system
IPC: B65H29/66
Filed: 1964-09-22
Abstract: 1,048,599. Delivering sheets. SMITH & WINCHESTER MANUFACTURING CO. Sept. 22, 1964 [June 22, 1964], No. 38584/64. Heading B6H. A high-speed feeding and sheet overlapping system for conveying sheets along a path from a sheeter to a stacking device comprises highspeed tapes 10, 18, 26, a low-speed conveyer 32, an overlapping section 30, 31, and means to detect whether there is a gap in the feed of the sheets so that the previous sheet is held until a subsequent one comes to overlap it. The gap may be caused by a defective sheet which is diverted by a flaw detector operating a pneumatic deflector 42, 44, 46 so the sheet passes adjacent to tape 19: the gap in the normal flow being sensed by photo-electric devices 28, 29 which operate a control valve 50. The overlapping section comprises a suction plate 30 and braking and co-operating rollers 34, 36 the suction slowing and drawing down the trailing edge of the sheet; the nip 31 of the rollers effect further slowing. The rollers 34, 36 are adjustably mounted on a carriage according to the size of the sheets, adjustment being such that the leading edge of each sheet enters the nip just as the trailing edge of the sheet leaves the tapes 26. The roller 36 is mounted on a pivoted arm operated by a pneumatic actuator 74 controlled by a valve 55 connected to the control 50. This removes the feeding action of the nip between rollers 34, 36 so there is relatively little positive feed. The sheet is further held by additional suction on the plate 30 through valve 50 to retain a sheet in the overlapping section when necessary.
Patent GB-1163841-A (GB)
Title: Electrophotographic Apparatus and Method
Inventor: BALINT ANDREW
IPC: G03G15/22
Filed: 1966-08-31
Abstract: 1,163,841. Electro-photographic apparatus. BELL & HOWELL CO. Aug. 31, 1966, No. 38769/66. Heading G2H. An electro-photographic apparatus comprises a disc 30 carrying a photo-conductive layer 31 which is rotated about the axis of a shaft 50 during charging and/or development. Charging is effected by a corotron having corona wires 34 and control grid 37 within a shield 36. During charging the disc 30 is rotated by gearing Fig. 16 (not shown). After charging, a spider (90) carrying the disc 30 is indexed to a second position where exposure of the layer 31 to an image of a journal or document placed on a platen (80, Fig. 6, not shown) takes place. The latent image thus formed is then developed by indexing the spider to a developing station having a development chamber 41, Fig. 3, connected to a powder cloud generator. The disc 30 is rotated during development to avoid tears and streaks in the developed image. The developed image is transferred to a card 47, Fig. 4, on a support 47 at a fourth position. The layer 31 is then cleaned by a brush 52, Fig. 5, while a brush 54 cleans an electrode 58 in the development chamber 41. The spider (91, Fig. 16, not shown), is indexed under the control of a plate (126, Fig. 10, not shown) having detents (127) engaged by a pin (134) retracted against the action of a spring (137) by a solenoid (140). A carriage (196, Fig. 12, not shown) carries the corona charging device and cleaning brush (52). The carriage is reciprocated by a screw (208) driven by an electric motor (209). A light source (204) completely exposes the layer (102) to remove residual electrostatic charges before recharging. A rotatable reservoir 251, Fig. 21, has a plate 252 provided with metering apertures 253 to meter the supply of toner particles e.g. carbon. A roller 264 is disposed with its peripheral surface above the apertures 253. An opening 270 in a plate 252 connects one of the apertures 253 with an opening 271 communicating with a conduit 277 supplied with compressed air, such that a powder cloud is formed which is supplied to a chamber (291 Fig. 20) formed between plates (288, 289) and by the layer (102). A carriage (336, Fig. 22, not shown) has a receiver (340) for a card to which the developed image is to be transferred. Before transfer the card is positioned under a vapour production chamber (332, Fig. 11, not shown). The pretreated card is then pressed into contact by air pressure.
Patent GB-851015-A (GB)
Title: Recovery of polymers from reaction mixtures
IPC: C08F6/02
Filed: 1956-12-20
Abstract: Polymers of monoolefins containing more than two carbon atoms and/or of polyolefins prepared in a solvent using as catalyst a mixture of (1) a compound of a metal of the 4th to 10th positions of the long periods of the periodic table and (2) an organo-metallic compound in which the metal has a valency of at least two and in which the transition metal of the compound or complex in the catalyst so formed is above its minimum valency, and then first mixed with an alcoholic (-OH) containing substance and the polymer separated from the solvent and alcoholic substance are recovered by an improved process which comprises effecting the mixing with methanol ethanol or isopropanol in an inert atmosphere at not greater than the boiling point of these alcohols. Specified polymers are those of propylene, butene-1, butene-2, isobutylene, 1-pentene, 1-hexene, 1-octene, 1-decene, cyclohexene, methyl cyclohexene, cycloheptene, styrene, alphamethyl styrene, o-,m-andp-, styrenes, dimethyl styrenes, indene, allyl benzene, allyl toluene, stilbene, their mixtures, butadiene, isoprene, piperylene, ethyl and dimethyl butadiene, ethyl, methyl and dimethyl pentadiene, hexadiene, methyl hexadiene, trimethyl, isopropyl, and neopentyl butadiene, octadiene, octatriene, dimethyl-t-butyl butadiene, myrcene allo-ocimere, cyclopentadiene, cyclohexadiene, cycloheptadiene dimethyl fulvene, phenyl-butadiene, diphenyl butadiene, diphenyl fulvene, their mixtures and mixtures of any of the above with allene, diallyl, dimethallyl, propylallene, squalene, 1-vinylcyclohexene, and divinyl benzene.  Specified preferred catalysts are alkyl aluminium compounds of formula R3Al,R2AlX or RAlX2 where X is hydrogen, oxyhalide or halide together with a titaniumtetrahalide preferably titanium tetrachloride-there may also be present an aluminium halide of formula AlX3. Benzene is a specified solvent.  The mixing of the reaction mixture with the alcohol may be carried out by adding it to a mixed solvent alcohol solution (e.g. benzene: methanol of volume ratio between 1:1 and 4:1 at room temperature or 2:1 to 6:1 at 0 to 5 DEG C.)
Patent GB-1478039-A (GB)
Title: Control circuit used in development of electrostatic latent images and developing apparatus
IPC: G03G15/08
Filed: 1974-08-27
Abstract: 1478039 Magnetic brush developing apparatus KONISHIROKU PHOTO INDUSTRY CO Ltd 27 Aug 1974 [27 Aug 1973] 38852/74 Heading G2H A bias potential applied between a magneticbrush-supporting conductive sleeve 33 and a photoconductive layer 2 supporting earthed drum 1 is regulated by connecting the drum 1 via a resistor R 1  to an electrode 4 arranged to contact the magnetic brush. Resistors R 1  and R 2  may suitably both be 1M#.