baber/WOPTO huggingface dataset:
Patent GB-976478-A (GB)
Title: Improvements in or relating to the production of spun yarn
IPC: D02G1/02
Filed: 1962-10-19
Abstract: 976,478. Texturing yarn: continuous spinning. E. J. DU PONT DE NEMOURS & CO. Oct. 19, 1962 [Oct. 23, 1961], No. 39686/62. Headings D1D, D1F and D1W. A spun yarn consists of a core bundle substantially free of true twist, consisting at least in part of discontinuous textile fibres, and bound together as a compact bundle by discontinuous textile fibres twisted tightly about the core bundle in irregular helices having helix angles between 10 degrees and 80 degrees. As described ends of tow 10, 11, 12 are drafted, and in the case of continuous filaments are stretch broken, between rollers 17, 18, and 20, 21 to produce a ribbon shape bundle. The fibres may be drafted over a hot plate at 105- 110C. An apron 19 or other guide means are used to support the fibres. An aspirating jet 24 which fits tightly about the nip of the rollers 20, 21 forward the fibre bundle to a twisting jet 25 where initially the core and to a lesser extent the surface fibres are twisted in one direction and then the compacted yarn is back twisted so that the core is substantially free of twist while the surface fibres are helically twisted about the core. As some of the fibres may be doubled back on the yarn as the yarn passes through the twisting jet, a few helical wrappings may occur in the opposite direction. The aspirating jet 24 (Fig. 3) has a plurality of holes 39 which direct gas or vapour, from an annular chamber 37 tangentially and angularly into the central bore 34. The jet may exert some twisting effect on the yarn bundle. If two ends are separately drafted then two aspirating jets are used with a manifold from one jet directing fibres into the centre of a second manifold (Fig. 1 not shown) linking the other jet with the twisting jet. The twisting jet (Fig. 4) has a yarn passageway 49 in a member 46 which may be rotated by a handle 47 between a threading slot 50 and the operative position in which a passageway 45 directs gas or vapour, which has a speed of at least 1/2 sonic velocity and which may be air at room temperature or at 110C. or steam at 166C., tangentially into the bore 49. Instead of a tow the starling material may be a sliver, roving or low twist staple yarn, with the stretch-breaking step being omitted. The following textile fibres may be used:- cotton, wool, silk, ramie, jute, hemp polyamides, cellulose esters, polyesters, polyalkylenes, polyvinyls, polyacrylics, glass or metallic fibres. By using a cellulose acetate yarn, which during drafting alternately snap breaks and drafts, with polyethylene terephthalate a slub yarn is obtained. By introducing at the front rollers 20, 21 a yarn of material different from that of the tow a composite yarn is obtained with one material predominating in the core. In this way glass filaments or a metallic conductor may be covered or a compacted elastic yarn obtained.
Patent GB-1365928-A (GB)
Title: Transmissions
IPC: F16H13/08
Filed: 1971-08-27
Abstract: 1365928 Friction gearing ROBERT BOSCH GmbH 27 Aug 1971 [1 Sept 1970] 40223/71 Heading F2Q A friction planetary gear suitable for power tools and domestic appliances comprises a housing 401 having a clamp 402 by means of which it may be secured to an electric drill, an input shaft 407, an output shaft 416, two ball bearings 406, 412 which are spring loaded towards each other by springs 415 and a cage 410 engaging between the balls of the bearings 412 and secured to the input shaft 407. The output shaft 416, in the form of a grinding spindle, is secured within the inner race of the bearing 412 and is journalled in a bearing 421 in a bore in the shaft 407. Axial thrust of the shaft 416 is taken by a ball 423. The shaft 407 has a hexagonal socket 409 which is adapted to be engaged by a hexagonal nut on a tool spindle of an electrical tool. In a modification, shown in Fig. 2, a cage 523 engages between the balls of two ball bearings 506, 507 which are mounted on a grinding spindle 512.
Patent GB-878614-A (GB)
Title: Electrical switch and variable resistor for miniature electrical apparatus
Inventor: GLUECKSTEIN HENRY JOACHEM
IPC: H01C10/36
Filed: 1958-12-15
Abstract: 878,614. Cam-operated switches with contacts. GLOBE-UNION Inc. Dec. 15, 1958, No. 40359/58. Class 38 (5). [Also in Group XXXVI] A lever 52, Fig. 2, mounted on a terminal stud 50 on an insulating base 10 is urged by spring 56 away from the base and into contact with terminal stud 48. The knife edge 58, Fig. 4, engages a convex section 60 with a self-cleaning action. When the shaft 18 is rotated to one end of its motion, the cam 64 raises lever 52 to open the switch and rests in notch 70. A resistance element 14, Fig. 3, is mounted on the other side of the base, and is traversed by wiper 16 staked to the shaft, electrical connection being made over contact spring 28. Rotation of the shaft is limited by a lug 36 engaging a base web 40.
Patent GB-908576-A (GB)
Title: Improvements in or relating to connecting members for boards for educational purposes
Inventor: GARDEN WILLIAM BROWNIE
IPC: B43L1/08
Filed: 1960-11-24
Abstract: 908,576. Endless blackboards. WILSON & GARDEN Ltd. Nov. 24, 1960, No. 40420/60. Class 146 (2). [Also in Group XXV] Relates to connecting members for a board for educational purposes of the type comprising an endless band constituted by flexible sheets 7 of blackboard surface or other material which are connected in series by connecting members and are entrained over top and bottom rollers carried by a frame. According to the invention the connecting member comprises a bar 1 of skeleton trapezoidal section, the narrower of the two parallel sides 2 being formed with a longitudinal slot 3 extending from end to end of the bar and two blades 5, 5 each substantially of the same length as the bar and intended to be mounted in and projecting through the slot, one longitudinal edge portion of each blade being formed with a channel recess for reception of an end portion of a flexible sheet, so that the blades connect sheets in series, and the opposed longitudinal edge portion of each blade being formed with a bead 8 intended to be located within the bar such that disengagement of the bar from the blades may be effected only by relative movement of the bar and the blades in the longitudinal direction. As shown, the bar and blades are retained in assembled position by a removable end plug 9 and the bar serves as a hand grip for the sheets 7, 7.
Patent GB-1394535-A (GB)
Title: Fibre optics
IPC: G02B6/04
Filed: 1973-08-28
Abstract: 1394535 Optical fibre AMERICAN OPTICAL CORP 28 Aug 1973 [28 Aug 1972] 40475/73 Heading C1M [Also in Division G2] A clad optical fibre 26 (Fig. 3) comprises a light-conducting core 32 and a cladding 28, of lower refractive index than the core, surrounding the core, the cladding including a plurality of channels 30 extending longitudinally thereof, and the fibre having an interface i<SP>1</SP> at which total internal reflection of light occurs. The fibre and/or the channels may be circular or polygonal in cross-section. A plurality of fibres may form an optical fibre bundle. The channels may be sealed at at least one cross-section of the fibre or fibre bundle, by radially compressing the fibre or bundle over a heated short portion of its length. The core may be flint glass of refractive index 1À75, and the cladding may be crown glass of refractive index 1À52. Alternative materials are fused silica or plastics material. The fibre may be made by placing a rod 18 (Fig. 2) inside a sleeve 22 of lower refractive index so as to leave a space between the rod and sleeve, placing tubes 20, of lower refractive index than the rod 18, longitudinally and in juxtaposed relation in the said space, heating the assembly 16, and drawing the assembly to form the fibre of the invention.
Patent GB-1190320-A (GB)
Title: Improvements in or relating to Toy Wheeled Vehicles
Inventor: CHEUNG CHAN WAI
IPC: A63H17/36
Filed: 1968-08-23
Abstract: 1,190,320. Toy wheeled vehicle. CHARM YING MFG. CO. Ltd. 23 Aug., 1968, No. 40533/68. Heading A6S. A toy wheeled vehicle comprises a body mounted on two pairs of wheels, one pair being mounted on an axle which is supported on a turntable pivotally mounted on the chassis for movement about a vertical axis producing a steering mechanism, the axle having a gear mounted on it which is in contact with a series of pinions gears, the axle being rotated by a battery powered motor through the gears and pinions. The chassis houses the battery and motor. As shown, 10 is a platform for the electric motor 11, and has a boss 30 through which a vertical shaft 31 is inserted. The battery is housed in housing 8. A large diameter gear wheel 32 and pinion 33 are secured on the lower end of the shaft. Gear 32 meshes with pinion. 34 on the lower end of the output shaft of motor 11. The gear wheel and pinion are fixed between plates 10 and 36. An aperture is formed in plate 36 centred on the shaft 31. A bevelled gear 46 is fixed on the axle 44 and is in mesh with 33 on shaft 31. Thus drive from motor 11 is transinitted through pinion 34, gear wheel 32, pinion 33 and gear 46 to the rear axle 44. The rotation of the turntable is restricted by fin 41 a and rib 42. The turntable is held in position by friction between the turntable and plate 36. A knocking sound can be produced by spring 50 and a peg 51 eccentrically secured on gear wheel 32.
Patent GB-1123559-A (GB)
Title: Film forming compositions
Inventor: STANLEY ROBERT HOLROYD
IPC: C07F5/06
Filed: 1966-09-14
Abstract: A thixotropic composition comprises an aqueous emulsion of a film-forming polymer or copolymer in admixture with a water-soluble hydroxyl group-containing organic colloid and a minor proportion by weight of a water-soluble alkanolamine aluminate.  The aluminate may be the reaction product of a di- or trialkanolamine and an aluminium alkoxide.  The colloid may be a cellulose derivative, starch or a polyvinyl alcohol.  The composition may also include an alkanolamine titanate.  Paints comprising the composition may include titanium dioxide as pigment.  In examples triethanolamine and triisopropanolamine aluminates are added to a vinyl acetate/ethylhexyl acrylate copolymer emulsion containing hydroxyethyl cellulose.  In a comparative example triethanolamine titanate is added.  Mixtures of aluminates and titanates may be used. In Example 6 a paint comprising titanium dioxide, calcium carbonate, china clay, aqueous sodium hexametaphosphate, hydroxyethyl cellulose, polyoxyalkene solution, water, 2-butoxyethyl acetate, vinyl acetate/2-ethylhexyl acrylate copolymer emulsion, and triethanolamine aluminate is made.ALSO:Alkanolamine aluminates are prepared by reacting alkanolamines with aluminium alkoxides. In Examples 1-4 triethanolamine is reacted with aluminium isopropoxide to give triethanolamine aluminate, N(CH2CH2O)3Al. In Example 5 triisopropanolamine is reacted with aluminium isopropoxide to give triisopropanolamine aluminate.  Other specified alkanolamines are diethanolamine and diisopropanolamine.
Patent GB-1325695-A (GB)
Title: Print hammer for a printing machine
IPC: B41J9/127
Filed: 1970-08-26
Abstract: 1325695 Selective printing PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 26 Aug 1970 [29 Aug 1969] 41102/70 Heading B6F A print hammer comprises an impact beam 3, two flexible support members 5 and means 11 for attaching the supports to fixed supports 39, the impact beam, flexible supports and attachment means being a unitary moulding in synthetic resin such as polyacetal. An energizing coil 19 and connecting wires 21 may be moulded into the hammer body. The flexible support members 5 may decrease in cross-section as shown or may each have two narrowing portions (57, Fig. 5) where the support flexes. The attachment means may interconnect the two support members (Fig. 4, not shown). The hammer impact beam may be reinforced by metal or glass fibre embedded therein, and the flexible support members may be reinforced with glass fibre.
Patent GB-863922-A (GB)
Title: Improvements in or relating to domestic coffee machines
IPC: A47J31/24
Filed: 1958-12-22
Abstract: 863,922. Thermal switches. AROSIO, F. Dec. 22, 1958 [Dec. 23, 1957], No. 41225/58. Class 38 (5). [Also in Group VI] A two-pin plug for use in a coffee-making machine has pins 48 surrounded by springs 49 normally held compressed by a cap 47 held by a readily-fusible pin 50. If the pin 50 is melted by overheating, cap 47 is released and moves to the dotted-line position, thus separating the connection.
Patent GB-1406664-A (GB)
Title: Alkene-acrylic co-oligomers
IPC: C07C69/593
Filed: 1972-09-06
Abstract: 1406664 Acrylic ester-alkene oligomers ROHM & HAAS CO 6 Sept 1972 [13 Sept 1971] 41290/72 Heading C3P [Also in Divisions C2 and C5] Oligomers comprising (a) 10 to 90 weight per cent of a C 4-32  alkene-1, (b) 1 to 45 weight per cent of CH 2  = CXCO 2 R where X is hydrogen or methyl and R is C 8-34  alkyl, and (c) up to 35 weight per cent of CH 2 =CR 2 R 3  where R 2  is (CH 2 ) n X where n is 0 to 8, X is COOR 4  where R 4  is H or C 1-4  alkyl, and R 3  is H or methyl, may be prepared by a free radical initiated oligomerization process in which (b) and optionally (c) is added to (a) at such rate that the mole ratio of ester(s) to alkene in the reacting mixture is maintained at 0À001 to 0À20 during the addition, (a), (b) and (c) being optionally mixed with further co-oligomerizable monomers before the addition takes place and/or the products being post-reacted with alcohols, esters or amines. Preferred initiators are peroxides, and the products may be used as dispersants and detergents in lubricating oil compositions. Many suitable reactants are specified and in Examples (I) hexadecene, dodecyl-pentadecyl acrylate and acrylic acid are oligomerized in the presence of t.butyl perbenzoate; (II) tetradecene, dodecylpentadecyl acrylate and acrylic acid are oligomerized in the presence of t.butyl perbenzoate and the product reacted with 2,2<SP>1</SP>-sulphinyl diethanol; (IV) hexadecene, dodecyl-pentadecyl acrylate and methyl 10-undecanoate are oligomerized in the presence of t.butyl perbenzoate; (V) hexadecene, dodecyl-pentadecyl acrylate and methyl 4-pentenoate are oligomerized in the presence of t.butyl perbenzoate and the product condensed with (VI) diethylene triamine; (VIII) hexadecene/dodecyl-pentadecyl acrylate/methyl acrylate oligomer is condensed with triethylene tetramine; (XIV) octadecene/dodecyl-pentadecyl acrylate/methyl acrylate oligomer is condensed with diethylene triamine; (XV) tetradecene, lauryl acrylate and 4-pentenoic acid are oligomerized in the presence of t.butyl perbenzoate and the product esterified with (XVII) N-(#-hydroxyethyl)-morpholine-2; and (XVI) tetradecene/lauryl acrylate/methyl 4- pentenoate oligomer is reacted with 2-(5- aminopentyl) imidazoline.
Patent GB-1529026-A (GB)
Title: O-pyrazolo-pyrimidine(thiono)-phosphoric(phosphonic)acid esters and ester-amides and their use as insecticides acaricides and nematicides
IPC: A01N57/08
Filed: 1976-10-05
Abstract: Novel O-pyrazolopyrimidin(thiono)phosphates/phos-phonates/phosphoramidates/p hosphonamidates of the formula I <IMAGE> in which the substituents are as defined in Claim 1, are prepared. These novel compounds are obtained by reacting suitable halo(thiono)phosphates/phosphonates/phosphoramidates/phosphonamidates with 2-hydroxypyrazolopyrimidine derivatives in the presence of an acid acceptor or in the form of the corresponding alkali metal salts, alkaline earth metal salts or ammonium salts. The use of the novel compounds of the formula I as active ingredient in insecticidal, acaricidal or nematicidal compositions is described.
Patent GB-1275317-A (GB)
Title: Device for observation purposes
Inventor: HIBBARD RONALD CLIFFORD
IPC: G08B13/196
Filed: 1969-08-21
Abstract: 1275317 Camera mounts R C HIBBARD 21 Aug, 1969 [23 Aug 1968; 19 April 1969] 41784/69 Headings G2A and G2J [Also in Division G4] A device for combating unlawful action (e.g. shop-lifting) comprises a casing or housing 29 having several lens-like windows 31 arranged to point in different directions at least one but not all of said lens-like windows communicating with a film or TV camera within the housing. As shown, a film, cine or TV camera 8 is mounted on a plate 2 and is operable remotely by a relay 14. A loudspeaker 16 is arranged to emit noises simulating the operation of other cameras. The casing may be hemispherical Fig. 1 (not shown) and may include flashing lights 33, the brilliance of which is controlled by a photo-cell mounted on the casing.
Patent GB-979703-A (GB)
Title: Improvements in or relating to umbrellas and parasols
IPC: A45B19/06
Filed: 1963-10-24
Abstract: 979,703. Umbrellas. S. MEYER. Oct. 24, 1963 [Oct. 24, 1962; March 26, 1963], No. 41951/63. Heading A4P. In an umbrella of reducible length comprising an upper tubular rod section 15 telescoping into a lower tubular rod section 16 and canopysupporting ribs having solid outer sections 20 telescoping into channelsection inner parts 19 which are pivoted to a crown 17, the excess canopy, when the ribs are telescoped, is drawn into the rod section 15 by a spring 31 sliding on a bar 28 secured to end caps 29, 30, the ends of the spring being secured to an eyelet 32 in the canopy and to the foot of the bar 28. Channelsection rib-braces 22 are pivoted to a sleeve 21, which guides the telescoping movement of the ribs, and to a runner 23 which is retained in canopy-open position by a depressible stop spring 24, and a depressible projection 25 maintains the rod sections in extended position. As shown in Fig. 7 a string 33 which is pulled replaces the spring and the rod 28 and end caps may be omitted. In further modifications the string and spring are both present or as shown in Fig. 9 a string 33 is secured to an eyelet 32 in the canopy and, at 38, to the lower tubular rod section 16 passing over a grooved rotatable wheel 37 on an axle 36 secured to the tubular rod section 15 so that excess canopy material is drawn into the rod section 15 by the telescoping of the rod sections, the rod section 15 being grooved at 35 to receive the outer length of string.
Patent GB-1019956-A (GB)
Title: Improvements in or relating to fluid flow control valves
Inventor: ROXBURGH HENRY LINDSAY
IPC: A62B9/02
Filed: 1963-10-24
Abstract: 1,019,956. Valves. MINISTER OF AVIATION. Oct. 22, 1964 [Oct. 24, 1963], No. 41991/63. Heading F2V. A valve for controlling the supply of oxygen to a breathing apparatus comprises a housing having an inlet 14, the Figure (not shown), leading to a tube 13 which opens into chambers 11 and 12. Each chamber is bounded by a diaphragm 16, 17 which can seat on the tube 13 to close the supply. The diaphragms are rigidly connected by rod 18 so that one valve is open while the other is closed. A spring 20 acts on the diaphragm 17 and the rod 18 is connected to a button 19. The chambers 11, 12 each have an outlet 21, 23 and the chamber 12 is also connected to a second supply sourec 26 controlled by a valve 27. In operation, with the valves in the position shown flow tubes place from supply 14 through chamber 11 to outlet 21 and the pressure acting on diaphragm 16 holds the valves in the position shown. If the supply 14 fails, the valve 27 is opened and flow tubes place through chamber 12 to outlet 23. The increase in pressure in the chamber 12 acts on the diaphragm 17 to close the lower end of the tube 13 and open the upper end, a non- return valve 15 preventing flow through the line 14. When the pressure in line 14 is restored, it now flows through chamber 12 and closes a non-return valve 29. The valve can be reset to the position shown by closing valve 27 and pushing down on the button 19.
Patent GB-1221575-A (GB)
Title: System for converting a non-protected code into a protected code
Inventor: DUUREN HENDRIK CORNELIS ANTHON
IPC: H04L25/49
Filed: 1968-09-04
Abstract: 1,221,575. Electric selective signalling. NETHERLANDS POSTAL & TELECOMMUNICATION SERVICES, DIRECTOR GENERAL OF. 4 Sept., 1968 [4 Sept., 1967], No. 41996/68. Heading G4H. A code converter converts n-bit code signals to n-bit constant ratio code signals in which O-bits have a first level and 1-bits have second and third levels, the number of one bits at one level in a signal bearing a constant ratio to the number at the other level. When n=7, five bits A-E, Fig. 1, of the 7-bit signal from contacts 1-7 pass to a code converter Col identical to that described in Specification 1,221,454, which delivers from unit K a 7-bit signal having a 4 : 3 M : S ratio, this signal feeding relay KE. The Mark bits are extracted from the constant ratio signal by unit Pt, the first of these gating the sixth and seventh input bits into a 2-stage shift register P, Q. The output of the register feeds relay PP and is also fed back to the register input via an inverter IN. The second to fourth Mark bits in the constant ratio signal step the register, which consequently gives a sequence of four bits at its output, the sequence uniquely representing the two bits gated to the register. The combined action of relays KE, PP thus causes a signal to be generated in which each Mark bit has positive or negative polarity, as determined by contact pp, and each Space bit is 0 volts. There are two negative and two positive Mark bits in each signal. This signal may be transmitted as an amplitude or frequency modulation. Reference is made to a similar system wherein n= 8.
Patent GB-1433780-A (GB)
Title: Single-lens reflex camera
IPC: G03B7/099
Filed: 1973-09-10
Abstract: 1433780 Reflex cameras ASAHI KOGAKU KOGYOKK 10 Sept 1973 [21 Sept 1972] 42383/73 Heading G2A In a single lens reflex camera a plate 37 can be pivoted by an electromagnet 39 so that it takes up a position blocking the path between the viewfinder eye-piece 36 and a light-receiving element 40 of the through-the-lens photometric system, the electromagnet being energized by the action of some part of the shutter release mechanism. In this way, "reverse" light entering through the eyepiece is prevented from reaching the photosensitive film during the exposure period. The plate 37 is normally pivoted by a spring 38 so that it is out of the path of light reflected by the mirror 2 and pentaprism 35 into the view-finder 36. When the shutter release button is pressed to effect the exposure, part of the operating mechanism closes a switch which energizes the electromagnet 39, which attracts the end 37a of the plate 37 and pivots it into the blocking position shown. In the particular arrangement of the present invention, the actuation of the shutter release button causes a lever (24) Figs. 1 and 2 (not shown) to rotate, which allows a pair of switch contacts to close and so complete a circuit which energizes the electromagnet 39.
Patent GB-1035550-A (GB)
Title: Improvements in and relating to stepping motors
IPC: H02P8/14
Filed: 1964-10-21
Abstract: 1,035,550. Electric motors and brakes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Oct. 21, 1964 [Oct. 24, 1963], No. 42886/64. Heading H2A. In a low power steping motor comprising two coaxial stators having annular coils 3, 9 between magnetic plates 1, 2, 8 having annularly toothed poles 4 ... 7 co-operating with a radially magnetized annular permanent rotor 15 whose pole number equals that of both stators and the steps per. revolution, the rotor mechanical detent is dispensed with by shifting, Fig. 2 (not shown), the poles 6, 7 of one (auxiliary) stator through 90 degrees electrical in the direction of rotor rotation in a leading sense relative to the poles 4, 5 of the other (main) stator and arranging that the driving torque of the auxiliary stator when excited determines the direction of rotor rotation and that its holding torque is so small that the rotor rest positions are determined solely by the main stator. This arrangement comprises providing the auxiliary stator with weaker magnetization, a larger air gap, or, as shown, with shorter poles 6, 7, than the main stator. A milled wheel 16 on the rotor shaft 13 enables manual rotation of the rotor into steps marked by the holding positions thereby incorporating a magnetic stop.