baber/WOPTO huggingface dataset:
Patent GB-1233603-A (GB)
IPC: A47C1/0355
Filed: 1968-05-20
Abstract: 1,233,603. Chairs. HIMOLLA POLSTERMOBELWERK CARL HIERL G.m.b.H. 20 May, 1968 [23 May, 1967], No. 23820/68. Heading A4J. A chair comprises a back 4 pivoted at 9 to a seat 3, and at 34 to a frame member 5, a leg rest 15 connected by a lazy tongs device 10, 11, 12, 13, to the seat 3; and linkage connects the back 4, the seat 3, and the leg rest 15 so that the leg rest is raised when the seat is tilted back and so that the seat and the back 4 can be tilted against spring action from the tilted-back position to a further tilted-back position. An operating lever 17 is pivoted at 16 to one end of an elbow of a member 11 of the lazy tongs device and at its mid point 18 to a supporting lever 19 and at its other end to a push rod 20 pivoted at its rear end to a seat support 6. The supporting lever 19 is pivotally connected at its centre to a pivot 35 on the frame 5 and its pivoting is limited by stops 31, 32 thereon but is normally urged against the rear stop 31 by a tension spring 24 extending between the lower end of the lever 19 and the rear end of a crank 21 coupled to the frame 5 by a pin 23 and slot 22 and pivoted at its front end to the pivot 16 on the lazy tongs member 11. A tension spring 25 extends from the rear end of the crank 21 to the seat support 6 and serves to retain the lazy tongs device in retracted position. When the seat is pushed back from the position of (Fig. 1) it also pivots about the pivot 34, and the pivot 16 consequently moves past the dead centre position joining the pivot point 33 of the lazy tongs member 11 and the rear end of the crank 21, and extends the lazy tongs device until the pin 23 reaches the rear end of the slot 22. The push rod 20 moves with the seat and pivots the operating lever 17 about the pivot 18. If now the back is tilted further the seat 3 will move rearwardly and the spring 24 will be extended until the supporting lever 19 comes against the forward stop 32. The foot rest is consequently elevated further.
Patent GB-1234166-A (GB)
IPC: H01J61/12
Filed: 1969-03-14
Abstract: 1,234,166. Discharge lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 14 March, 1969 [19 March, 1968], No. 13484/69. Heading H1D. The voltage required to ignite a discharge in the discharge tube 1 of a double-envelope gas and/or vapour-discharge lamp is lowered by establishing a glow discharge between uninsulated parts of current conductors 13 and 14 located in the space between the discharge tube 1 and the outer envelope 11 which is filled with gas at a pressure of 10-<SP>3</SP> to 1 torr. The gas may be nitrogen or argon. In an alternative embodiment (Fig. 2, not shown), the conductors 13 and 14 and connection strips 15 and 16 are covered with insulation and the strips 15 and 16 are provided with insulationcovered extensions terminating in insulated resistors and emissive coated conductors bebetween which the glow discharge occurs.
Patent GB-1234609-A (GB)
IPC: B65D33/00
Filed: 1968-09-11
Abstract: 1,234,609. Stacking empty bags. W. R. GRACE & CO. 11 Sept., 1968 [11 Sept., 1967], No. 43270/68. Heading B8C. A package of imbricated open bags 131 is formed by securing one face of each bag to two spaced parallel tapes 128, 129, with each bag overlying the opening in the underlying bag. The tapes 128, 129 are disposed a quarter the width of a bag in from each side and have a tacky substance on one surface; the contact area of each tape and a bag is from  to 1 square inch. Each bag has two scalloped overlying lips and when the bag is inflated, the mouth is of curvilinear quadrilateral configuration. The bags may be dusted inside and outside with talc.
Patent GB-1238369-A (GB)
IPC: E21B10/20
Filed: 1968-11-13
Abstract: 1,238,369. Tunnelling machines. UNION INDUSTRIELLE BLANZY-OUEST. 13 Nov., 1968 [17 Nov., 1967], No. 53960/68. Heading E1F. The rotatable, cutter tool-carrying head of a tunnelling machine comprises a cylindrical sleeve 1 disposed between front and rear, coaxial discs 2, 3, cutter tools 7 mounted on both the front face of the disc 2 and brackets 4 secured to the outside of the sleeve 1 to extend radially thereof, and collecting troughs 46 associated with some of the brackets. The bases of the holders by which tools 7 are mounted on the front face of the disc 2 are trued during manufacture to give the desired inclinations of the cutter tools they carry when mounted on the disc. The holders by which tools 7 are mounted on the brackets 4 are all identical and are each provided with two holes, one 35 for receiving a pivot spindle of the holder and the other 36 for receiving a pin for locking the holder on the associated bracket a required inclination. The head is rotatably supported at the front and rear against radial forces by roller bearings 55, 54 of which the bearing 54 has a fixed outer race which serves as an abutment ring for transmission of axial forces from the head to the body of the machine.
Patent GB-1252665-A (GB)
IPC: C09B63/00
Filed: 1969-01-14
Abstract: 1,252,665. Dyestuff lake compositions. IMPERIAL CHEMICAL INDUSTRIES Ltd. 29 Dec., 1969 [14 Jan., 1969], No. 2097/69. Heading C4A. Rosinated dyestuff lake compositions are produced by mixing an aqueous solution of a watersoluble heavy metal salt with an aqueous solution containing (1) a water-soluble salt of an acid lake-forming dyestuff and (2) a watersoluble rosin salt, at pH 7-8 and in the presence of a non-ionic surfactant having a cloud point at or below the mixing temperature. Preferred dyestuffs are azo dyes produced by coupling aniline sulphonic acids with 2-OH-3-naphthoic acid. The rosin salt (2) may be the sodium or potassium salt of rosin or a chemically modified rosin. The heavy metal precipitating cation may be Co or Mn, or preferably Ca or Ba. The surfactant may be a C 8  + alkyl phenol, alkanol or allcylamine, or a condensate thereof with an allcylene oxide. To maintain a pH of 7-8, dilute HCl may be added. After mixing, the aqueous slurry may be heated above the softening point of the heavy metal rosinate.
Patent GB-1289009-A (GB)
IPC: G03G5/00
Filed: 1970-07-31
Abstract: 1289009 Electro-photography FUJI PHOTO FILM CO Ltd 31 July 1970 [31 July 1969] 37192/70 Heading G2H A photo-conductive layer comprising dyesensitized zinc oxide dispersed in a resin binder is bleached with a solution containing 30-80% of a solvent for the dye and 0.01-20% of an alkali metal hydroxide and rinsed with dye solvent and/or binder solvent or swelling agent. The bleaching solution may contain a binder solvent or swelling agent and a cationic surface active agent. The washing liquid may contain an acid. The alkali metal hydroxide may be potassium, sodium or lithium hydroxide. The dye solvent may be water, methanol, ethanol, isopropanol, acetone, ethylene glycol, or monomethylether. The binder solvent may be ethyl or butyl acetate; methylethyl or methylisobutyl ketone; or toluene or xylene. The layer may have been developed with a toner composed of a lake pigment susceptible to acid.
Patent GB-1289423-A (GB)
IPC: H01R12/72
Filed: 1971-04-19
Abstract: 1289423 Two part couplings AMP Inc 19 April 1971 [14 April 1970] 24780/71 Heading H2E A housing 1 for an edge connector for a printed circuit board made of resilient insulating material such as nylon is provided with channels 2 for receiving contacts 30 and a shoulder to limit forward movement of the contact and on integral hinged flap 13 to limit rearward movement of the contact. The flap locks with the side walls of the housing and is released through flexure of the same. A latch arm integral with the housing locks in the printed circuit board which is provided with an off-centre hole to ensure polarization. Slots of different widths are also provided in the printed circuit which corresponds to walls in the housing to further ensure polarization. The contact is described in Specification 1,289,260.
Patent GB-1295578-A (GB)
IPC: G03B7/083
Filed: 1971-04-19
Abstract: 1295578 Shutter control circuit HATTORI TOKEITEN KK 19 April [12 Feb 1970] 21444/71 Heading G2A A shutter control circuit has a switching circuit T 1  T 2  a delay circuit controlling the termination of exposure of the camera shutter and having a photo-electric element CdS 1  for providing an indication of the brightness of an area subtending a given solid angle to the photo-electric element and a condenser C, and a further photo-electric element CdS 2  for providing an indication of the brightness of a further area surrounding the first mentioned area and for determining the trigger level of the switching circuit. The photo-elements are preferably combined in one unit, the central portion corresponding to the first element, whilst the peripheral portion corresponds to the second element. A switch may be provided to disconnect the second element. In a second embodiment, Fig. 2 (not shown), the trigger level is determined by connecting the second element to the midpoint of a voltage divider to which is also connected the emitter of transistor T 1 .
Patent GB-1302183-A (GB)
IPC: E04H1/12
Filed: 1969-05-27
Abstract: 1302183 Prefabricated building PORTASILO Ltd 27 May 1970 [27 May 1969] 26787/69 Headings E1A and E1W A portable cabin containing a W.C. and a wash basin, has two side walls 10, 11 formed by two panels, each panel, of e.g. galvanised steel, being formed with a right angled shoulder 5, 6 at its bottom end for supporting the floor structure and having adjacent its top end, a horizontal channel 8 having a terminal flange 9 to which a perimetric skirt portion of the roof may be secured (Fig. 4). Each panel has vertical side flanges 2 for connection to an adjacent panel and the body portion of each panel is fluted (Fig. 3). A larger sanitary structure having walls formed by a plurality of such panels is also described (Figs. 7-9).
Patent GB-1302527-A (GB)
IPC: B23P15/40
Filed: 1969-03-26
Abstract: 1302527 Cutting or creasing formes C ROBINSON 25 March 1970 [26 March 1969] 15832/69 Heading B4B [Also in Division B6] A cutting and/or creasing forme comprises a rule 10, Fig. 1 having an operative edge 11, and an opposed edge 12 embedded in a ductile metal base 16 which can be soldered to a carrier (e.g. a carrier cylinder) the embedded part of the rule having notches 13 and/or other openings at least partly filled by the metal (which may be white metal). The underside 21 of the base may include a string or strings of solder 25 and may have a triangular, Fig. 3, or rectangular section, Fig. 4 (not shown). The notches or slots 13 may be replaced by a series of holes, Figs. 2A, 2B (not shown). This construction of rule permits easier bending about a cylindrical carrier; the carrier sleeve may include rubber formations to facilitate feeding cut or creased material forwards. The base 16 may be applied by casting.
Patent GB-1312445-A (GB)
Title: Electric street light lanterns
IPC: F21V5/02
Filed: 1969-05-07
Abstract: 1312445 Street lamps RELITE ELECTRIC Lid 11 May 1970 [7 May 1969] 23207/69 Heading F4R In a street lamp of the kind comprising at least one elongated light source and an elongated transparent bowl having a base and inwardly and downwardly inclined sides provided with light refracting formations, the formations on each side consist of an upper formation 6 having a plurality of longitudinally extending prisms and a lower formation 7 constructed as a single longitudinally extending prism spaced from the upper formation. The upper prisms, which have surfaces inclined to the vertical at progressively smaller angles from the top to the bottom of the formation, produce downward deviation and concentration of the transmitted light, whereas the lower prism deflects the light upwardly so that a zone of maximum intensity is produced at a predetermined angle (preferably 73 degrees) to the vertical. The base of the bowl is treated to provide uniform light diffusion.
Patent GB-1317412-A (GB)
Title: Mixing and metering apparatus
IPC: B01F15/02
Filed: 1971-09-06
Abstract: 1317412 Mixing apparatus ANCHOR HOCKING CORP 6 Sept 1971 41487/71 Heading B1C [Also in Division B8[ In apparatus for metering and mixing two granular materials each is supplied from a hopper to a pair of metering pockets in a reciprocating sliding plate and thence through one of a pair of discharge openings to a common collecting chamber. As shown, for each of two hoppers 12 (14) there is a single discharge aperture 38, 40 each supplying a pair of metering pockets 52, 54 and 56, 58 in the reciprocating plate 36 positioned between respective apertures 44, 46 and 48, 50 leading to a common collecting chamber 28. As shown in Fig. 7 the arrangement is such that while one metering aperture 54 of a pair is filling the other 52 is discharging through one 44 of the apertures leading to the collecting chamber. At the other end of the stroke, pocket 54 will discharge through aperture 46 while pocket 52 is filling. The size of the metering pockets may be adjusted by removable inserts as at 60. The apparatus is described in connection with the supply of clear and coloured pellets to an injection moulding apparatus, see Fig. 1 (not shown), and the slide plate may be actuated in dependence upon the level in the filling hopper thereof.
Patent GB-1319307-A (GB)
Title: Optical systems
IPC: G03B15/00
Filed: 1970-11-18
Abstract: 1319307 Stabilized optical systems BARR & STROUD Ltd 25 Aug 1971 [18 Nov 1970] 54781/70 Heading G2J A stabilized optical system has an objective 10, 11 mounted on a platform rotatable about a first axis and a mirror 12 also mounted on the platform and rotatable about the said axis. The focal point of the objective is on the reflecting surface and by means of a driving connection between the platform and the mirror, the light incident on the mirror from the objective is directed along a second axis fixed with respect to the support on which the platform is servostabilized. A laser beam may additionally be employed for information transmission and is removed from the visible light beam by a suitable partially reflective mirror arrangement.
Patent GB-1320772-A (GB)
Title: Optical apparatus
IPC: G02B6/06
Filed: 1970-06-18
Abstract: 1320772 Optical fibre bundles RANK ORGANISATION Ltd 26 May 1971 [18 June 1970] 29690/70 Heading G2J An optical fibre bundle has main fibres of circular cross-section 2 in layers, the fibres 2 forming a rectangular array, and intestitial fibres 74 of smaller diameter than the main fibres and disposed in the interstices between the main fibres and also in the grooves between adjacent main fibres on two sides only of the bundle to allow packing of a number of bundles, the main fibres touching their adjacent interstitial fibres. One or both sets of fibres may be clad fibres.
Patent GB-1324848-A (GB)
Title: Carburetters
IPC: F02M3/12
Filed: 1970-06-08
Abstract: 1324848 Spray carburettors ZENITH CARBURETTER CO Ltd 7 June 1971 [8 June 1970] 27627/70 Heading F1B In a constant depression carburettor, in which a suction-operated air valve controls an induction passage throat and moves a profiled needle to control the effective area of a fuel metering orifice, part of the total fuel passing through the fuel metering orifice is passed through a transfer passage into the induction passage downstream of a throttle valve when the latter is closed or substantially closed the transfer passage being connected to the induction passage at the throat and at a position downstream of the throttle valve and is shut off from the mixing chamber. Fuel from a float chamber passes through orifice 22, Fig.2 and is mixed with air passing through duct 29 the resultant mixture passing through bore 23 to throat 16. When throttle 17 is substantially closed the suction acting on port 28 causes some of the mixture to be diverted via cavity 25 and duct 27 to port 28. Further air is added to the mixture via ducts 31, 34, 36, 37, 38 and 33, the rate of air flow being determined by screw plugs 39, 44. In another embodiment the arrangement for adding extra air to duct 27 is omitted and a control valve may be included in the passage to port 28. Air passing through duct 29 to cavity 22 forms an emulsion with the fuel or the provision for such air supply may be omitted.
Patent GB-1327792-A (GB)
Title: Manufacture of reinforced asbestos cement products
IPC: C04B28/02
Filed: 1971-05-28
Abstract: 1327792 Asbestos-cement products TAC CONSTRUCTION MATERIALS Ltd 28 May 1971 [1 June 1970] 26245/70 Headings D2A and D2B A method of making an asbestos-cement product comprises distributing reinforcing fibres at least 10 m.m. long over a layer of wet asbestos-cement on a conveyor felt and thereafter winding the layer on a rotating cylinder. The fibres are formed by cutting a roving 4 of continuous glass filaments by means of a rotary cutter 19 having blades 20, the roving passing from a container 5 between a driven hard rubber roller 8 and a spring-biased roller 9 and then between the rotary cutter 19 and the roller 8. The fibres which may be 25 to 50 m.m. long are carried downward by a stream of air produced by a fan 24 and passing steam or electrically heated rods 25 and are distributed by a driven, speed adjustable, rotating bladed device 30. In a modification, Fig. 3 (not shown), a wider layer of wet asbestoscement is served by a plurality of fibre producing and distributing apparatuses. In a further modification. Fig. 4 (not shown), the distributing device of each apparatus is a driven, rotating, horizontally disposed bladed disc. The layer of wet asbestos-cement is transferred to the felt from the vat of a Hatschek machine and after receiving the reinforcing fibres is transferred to the accumulation bowl of the machine so that a plurality of layers are built up to form a sheet “" thick which is cut axially and removed from the bowl to form a flat sheet. Water may be sprayed on the layer after deposition of the reinforcing fibres, and the water may contain constituents such as chemicals which modify the setting properties of the cement or the final properties of the product. The product may be taken from the forming cylinder in the form of a tube. The reinforcing fibres may be distributed to give random or preferential orientation, and the glass may be alkali-resistant, e.g. zirconium glass consisting of a composite silicate of zirconium, aluminium and sodium in which the amount of zirconium expressed as zirconia is from 10% to 25% by weight of the glass, or it may be protected against alkali by a surface coating, e.g. polyvinyl acetate or epoxy resin. The reinforcing fibres may be of steel, rock wool, carbon or asbestos, or they may be of nylon, polyethylene or polypropylene. The total of asbestos and reinforcing fibres is between 5.5% and 25% of the asbestos, fibre and cement, the reinforcing fibres being at least 0.5% and the asbestos fibres being at least 5%.
Patent GB-1330463-A (GB)
Title: Manufacture of non-woven materials
IPC: D04H3/073
Filed: 1970-09-16
Abstract: 1330463 Forming tubular mats; bonded fibre fabrics IMPERIAL CHEMICAL INDUSTRIES Ltd 16 Sept 1970 [1 Oct 1969] 48196/69 Headings D1N and D1R Continuous synthetic filaments 10N, 10S are projected by at least 2 forwarding means 38N, 38S, situated inside a hollow non-rotating tubular collecting member, (22, Fig. 1, not shown) into the surface of said member, there being angular motion between said forwarding means and said tubular member, such that the mean distance between them preferably remains constant, to form a tubular web. Preferably the filaments have a core of nylon 66 and a sheath of copolymerised nylon 66 (70%) and nylon 6, so that autogenous bonding of the web may be carried out by means of high pressure steam alternatively the web may be impregnated with a binder applied as a solid, liquid or solution, followed by heating. The continuous filaments are ejected by compressed air supplied by tube 46 which is rigid apart from flexible piece 50 and is embedded in plates 40, 48. Outer tube 42 is rotated, and transmits torque to swash plate 40 which is prevented from rotating by tube 46. The plane of plate 40 therefore processes so that the filaments cover the whole collector surface without net relative angular rotation between the forwarding means 38N, 38S and the sources of supply of the filaments (14) averaged over a 360 sweep of the forwarding means. A swash plate with 4 forwarding means is described. Large diameter collectors may be provided with a swash plate mounted on an arm which rotates about the axis of the collector. In the embodiment of Fig. 7 stationary plate 54 supports air ejectors having fixed portions 56 and rotatable portions 58 which end in portions-61 aligned at an angle to the tube axis, rotation being caused by a toothed wheel or ribbed belt.  The hollow tubular member may be composed of vertically arranged foraminous or impervious belts which are driven so that a continuously descending surface is produced which removes the web. In a modification the tubular member comprises parallel rods, some of which move inwardly and downwardly then outwardly and upwardly. Alternatively the tubular member may be a stationary sheet down which the web is pulled by rolls. A web of polyamide filaments adheres to the tubular member by virtue of electrostatic charge which they pick up. Steam or moisture may be injected to reduce the adhesion. Suction may be applied to a foraminous tubular member. The cross section of the tubular member may become increasingly elliptical as its lower end is approached and a driven bowed roll set under the tubular member, so that the tubular web is collected as a "lay-flat" doubled web. Alternatively the web may be slit by cutting, shearing or thermal means. The web may be wound up on a roll together with a layer of tissue paper (34).
Patent GB-1332203-A (GB)
Title: Roat trailer for hardtop automobiles
IPC: B60P3/32
Filed: 1971-03-19
Abstract: 1332203 Semi-trailers; vehicle couplings A P PEDRICK 19 March 1971 7261/71 Headings B7B B7H and B7T A road trailer is supported at its rear on wheels 5 and is pivoted at its front on the hard top of an automobile. The upper deck of the trailer is telescopic and contains seats 3. The pivot is formed by a roller bearing 9 between a bearing 8 on the trailer and a flexible or rubber mounting 10 which is evacuated by a pump to retain it on the hard top. A ladder 7 is provided on the trailer which may be used as a garage when wheels 13 on pivotable legs 14 are used to support the front of the trailer and canvas side screens (16), Fig. 6 (not shown), are used. Two or more trailers having a panel extending across them to give a commmon roof may be used as a sunbathing platform, Fig. 7 (not shown). (For Figures see next column.)
Patent GB-1334001-A (GB)
Title: Magnetron oscillators
IPC: H03B9/10
Filed: 1972-04-28
Abstract: 1334001 Magnetrons ENGLISH ELECTRIC VALVE CO Ltd 28 April 1972 [4 May 1971] 13036/71 Heading H1D A multicavity magnetron the frequency of which can be rapidly switched between two values includes an auxiliary resonant cavity 8 coupled to one of the magnetron cavities and containing two electrodes 9 and 10 having their facing surfaces 11 and 17 formed of a secondary emissive material, whereby, in operation, multifactor discharge between the two electrodes, produced by the magnetic field, effectively shorts out the auxiliary cavity, while inhibition of the discharge by the application either of a sufficient D.C. potential or of a magnetic field, changes the magnetron frequency by virtue of the pulling effect of the auxiliary cavity. As shown, electrode 9 is provided with a heater to assist in the initiation of the discharge, while electrode 10 is surrounded by a cylinder 22 constituting an R.F. choke.