baber/WOPTO huggingface dataset:
Patent GB-1127318-A (GB)
Title: Improvements relating to electrolytic cells
IPC: C25C3/08
Filed: 1965-10-20
Abstract: 1,127,318. Electrolytic cells for producing aluminium. REYNOLDS METALS CO. Oct. 20, 1965 [Oct.26, 1964], No. 44488/65. Heading C7B. In an electrolytic alumina reduction cell, current collector pins 24 from graphite cathodes 22 are composed of oxygen-free Cu, e. g. at least 99À96% pure, whereby, on heating, rupture of the Cu by gases contained within it is prevented. The connection may take the form of a smooth or fine threaded cylindrical or frusto-conical Cu pin in a smooth bore socket or a threaded pin screwed into a threaded socket. Fig. 1 shows a cell comprising prebaked carbon anodes 26, the graphite cathodes 22 and their Cu collector pins 24, a steel shell 10 and an insulating lining 12, the cathodes 22 being anchored by a rammed carbon side lining 18 and embedded in powdered Al 2 O 3  20. The bath 28 comprises molten Al 2 O 3  and cryolite. A pad 30 of molten A1 extends below the bath.
Patent GB-1482147-A (GB)
Title: Gas control valve assembly
IPC: F23Q9/14
Filed: 1974-10-16
Abstract: 1482147 Valves HONEYWELL Inc 16 Oct 1974 [17 Oct 1973] 44751/74 Heading F2V [Also in Division F4] A gas control valve assembly comprises a first valve 13, a manually-operable control 11, including a rotary and axially movable shaft 12 for controlling the gas flow from an inlet 16, through a safety valve 15, and to an outlet 20, an electromagnet 30 having an armature 31 movable upon axially-movement of shaft 12 so that when the electromagnet is energized by a flamesensing thermocouple 25 it retains the armature in its adjusted position, and a latch 41, 42 connecting valve 15 to armature 31 so that the valve is opened when the armature is moved, rotation of shaft 12 causing the latch to be released, and valve 15 to close even when the electromagnet is energized, the latch relatching when the armature returns to its first position when the electromagnet is de-energized and shaft 12 is moved to the unlatching position. Valve 15 is connected to a lever 40 which is connectible to a second lever 33 by the latch 41, 42. In operation, the valve assembly is connected to a gas source and to a burner 21 with valve 15 closed Fig. 1. An arm 14 on shaft 12 engages a spring 43 so that latch 41, 42 is disengaged. Knob 11 is rotated to the "PILOT" position, spring 43 is released and levers 33, 40 are latched and shaft 12 is moved axially so that arm 14 engages end 36 of lever 33 and the levers are pivoted about shaft 35 to open valve 15 and to move armature 31 upwardly. Gas flows from inlet 16 through an opening in a plug valve 13 and out through a channel 24 to the pilot 22, which is ignited. A thermocouple 25 is heated and energizes electromagnet 30 so that armature 31 is held even after arm 14 has moved away from end 36. Knob 11 is moved to the "ON" position and gas flows through an opening in plug valve 13, and a diaphragm activated valve 51, to the main burner 21. Should the pilot flame be extinguished, valve 15 will close due to the de-energizing of the armature and the subsequent anticlockwise rotation of levers 33, 40 under the bias of a spring 46. Relighting can only be achieved by rotating knob 11 to the "PILOT" position. When the knob is rotated toward the "OFF" position arm 14 contacts spring 43 to unlatch the levers so that lever 40 is rotated anticlockwise by a spring 44, to close valve 15.
Patent GB-1510207-A (GB)
Title: Casters
IPC: B60B/
Filed: 1975-10-31
Abstract: 1510207 Castors YUGEN KAISHA IIYOSHI SEISAKUSHO 31 Oct 1975 [6 Nov 1974 (3) 28 Dec 1974] 45232/75 Heading A4U [Also in Division F2]  A castor comprises a frame 1' formed from a section cut to the required length from a bar (1) of extruded material, Fig. 1 (not shown), such as aluminium alloy or plastics, the bar having a longitudinally extending aperture 3 which in the cut-off section rotatably receives a mounting rod 10. An axle 7 extends through holes 5 and supports wheels 8. The rod 10 has a groove 11 in which is a retainer ring 12 secured to the frame 1'. A bearing (13) of semirigid synthetic resin may be interposed between the walls of the aperture 3 and the rod 10, the rod 10 being supported at its base on a steel ball (15), Fig. 6 (not shown). The ring 12 is replaced by a screw (16) extending into the groove 11 through the walls of the aperture 3 and the bearing (13). In another embodiment, Figs. 7 to 10 (not shown), the portion 4 of the section is narrow and solid, and the bottom of the rod 10 is headed, the ring 12 being dispensed with. In another embodiment, Figs. 11 to 22 (not shown), the frame has outer walls (31), (33) covering the wheels the axle of which extends through a bearing (39) disposed in open recesses (36) in the walls of the portion 4 of the frame. The bearing (39) has a part (44) which snap-engages a part (47) on the bearing 13 for the swivel rod 10 to retain the bearings in assembled position. The wheels may have convex outer faces (60), the outer walls of the frame being replaced by upper and lower flanges (62), (63) between which the faces (60) project, Figs. 23 to 25 (not shown), or the wheels may be completely exposed but have flanged hubs (73) slidably engaged with flanges (70), (71) on the frame, Figs. 26 to 28 (not shown). In another embodiment, Figs. 29 to 32 (not shown), a single wheel is housed in the frame which has on the inside of the walls of the portion 4 opposed flanges (82), (83) which engage side flanges (85) of axle bearings (84). The axle bearings also have bottom flanges (86) for engaging the edges of the frame when the axle bearings are forced into position. In another modification, Figs. 33 to 37 (not shown), a single wheel is disposed between opposed walls of the frame, the wheel axle extending through holes in the walls. The mounting rod 10 terminates in a mounting plate (91). In another embodiment, Figs. 38 to 42 (not shown), the castor comprises a braking mechanism which includes a spring-loaded carriage (103) slidably mounted in the frame and manually movable between a brake-off position and a position in which a resilient locking pawl (108) engages the bottom edge of the frame to retain the carriage in its brake-on position, against the bias of the spring, in which a chock (106) on it is forced against the floor and has brake shoes (110) which simultaneously engage the inside of the wheel flanges. The carriage is moulded of synthetic resin such as polypropylene and has a thumbpiece (105) for operating the pawl (108), and the chock is of rigid synthetic resin or metal, e.g. of nylon or polypropylene.
Patent GB-1362826-A (GB)
Title: Colour copies from monochrome originals
IPC: G03G17/04
Filed: 1971-09-28
Abstract: 1362826 Photo-electrophoretic imaging XEROX CORP 28 Sept 1971 [28 Sept 1970] 45248/71 Heading G2H After the formation of a black image using black ink comprising a mixture of photo-electrophoretic yellow, magenta and cyan particles, the image or a portion thereof is converted to a coloured imaged by non-imagewise photo-electrophoresis using coloured light. The black image may be formed by photo-electrophoresis, printing or painting. In the latter two cases, charging is preferably effected between formation and conversion to a coloured image. As shown a black image formed on a flat transparent injecting electrode 1 is converted to a coloured image, except in the area masked by a plate 17, using a roller blocking electrode and a coloured filter 18. Instead of a masking plate, a lens stop comprising a plurality of small discrete light blocking and transmitting areas Fig. 4, (not shown) may be employed, the lens stop being shifted one dot diameter for repetition of the process. The image may be of alpha-numeric characters Fig. 2, (not shown).
Patent GB-1087357-A (GB)
Title: Improvements in or relating to push button switches
IPC: H01H13/50
Filed: 1964-11-06
Abstract: 1,087,357. Keyboard switches. R. SCHADOW. Nov. 5, 1964 [Nov. 12, 1963], No. 45180/64. Heading H2B. In a switch comprising a bank of pushbuttons 15 with conventional interlock mechanism 4, 5, the outer or rest position of a button is determined by an abutment 9b on the slider 2 engaging a removable stop 12 which passes through a slot in the slider 2 and seats in a slot between lugs 13 on the main frame 1. Stop 12 is retained in position beneath the end of contact-carrying plate 6 by button-return spring 14 and is readily removable to allow the slider to be withdrawn from the button end for replacement or cleaning of contacts. In the embodiment of Figures 5 and 5a (not shown) the stop 12 passes through slots in plate 6, slider 2 and base 1, and is retained by twisting its projecting lower end (12d). Figs. 6 to 8 (not shown) illustrate an embodiment wherein a U-shaped end member (21) embraces the front of the main frame (18) and after withdrawal allows the slider (16) to be lifted to clear a shoulder (20) for removal. In the embodiment of Fig. 9 (not shown), a plate (19) of insulating material is retained in position by the U-shaped end member (21) and normally prevents complete withdrawal of the slider by engagement with an abutment thereon. In a further embodiment (Figs. 10 to 12, not shown) an inverted U-link (26) has its legs passing down through apertures in the contact plate (6) to act both as a stop to the slider (16) and as a conventional interlocking detent. The U-link may be retained by a leafspring (29b) extending from the end member (29) as in Figs. 10 and 11 (not shown) or by spring bias provided from the button-return spring 14 acting via a fulcrum (29d) on the end member (29) as in Fig. 12 (not shown). In the several embodiments of Figs. 6 to 12 (not shown) the spring clip moving contacts 10 are replaced by resilient bars (17).
Patent GB-1124540-A (GB)
Title: Metal clad plastics piping
IPC: B29C63/46
Filed: 1966-10-11
Abstract: 1,124,540. Making tubes. UPJOHN CO. 11 Oct., 1966 [11 Oct., 1965], No. 45440/66. Heading B3A. [Also in Division F2] The Specification relates to a method of forming a composite tubular product comprising an inner plastics tube of, for example, polyvinyl chloride, high density polyethylene, nylon, or P.T.F.E. and an outer metal tube 13 of, for example, aluminium, carbon steel or copper. The method comprises the steps of reducing the diameter of the plastics tube by the application of heat thereto, inserting the plastics tube 11 into the metal tube 13 while still hot such that a clearance 14 is provided between the tubes, reducing the diameter of the metal tube 13 until the inner wall thereof engages the plastics tube, and cooling the assembly to produce the final composite tubular product in which the plastics tube attempts to regain its initial diameter. The diameter of the metal tube may be reduced by interposing the tube between sets of jaws 15, 16 and stretching the tube by means of an hydraulic force or by moving it through a reducing die, or by rolling. An example giving dimensions of the tubes 11, 13 &c. is disclosed in the Specification.
Patent GB-1156859-A (GB)
Title: Improvement in Illumination Tubes for Lasers
IPC: H01S3/038
Filed: 1967-10-05
Abstract: 1,156,859. Discharge lamps. COMPAGNIE GENERALE D'ELECTRICITE. 5 Oct., 1967 [7 Oct., 1966], No. 45459/67. Heading H1D. A flash discharge tube for optically pumping a laser comprises a helical duct 12 bounded by two cylindrical surfaces 11 and 16 and by a helical partition 13, the width of the partition and the radial dimension of the duct being substantially smaller than the width of the duct in the axial direction of the tube. The radial dimension of the duct is preferably less than one third of its width. In Fig. 1 the duct is formed by abrasion of the inner tube 11 after which the outer sleeve 16 is welded to the partition 13 and to end flanges 19 through which extend the electrode leads 17 and 20 and the exhaust tube 18. In a modification, Fig. 2 (not shown), a rod of glass or quartz is helically wound round a cylindrical inner tube to define the duct, and is sealed to the inner and outer cylindrical tubes. The outside of the outer tube may be coated with diffusing material 15, e.g. of magnesium oxide. The discharge impedance is lower than that of a known helically wound tube (Fig. 3, not shown) and higher than that of a known coaxial cylinder tube (Fig. 4, not shown), and is close to that required for initial damping of an LC discharge circuit.
Patent GB-1171862-A (GB)
Title: Electro-Optical Rangefinder.
Inventor: PRADEL GEORG
IPC: G01S7/481
Filed: 1967-10-06
Abstract: 1,171, 862. Surveying apparatus. CARL ZEISS JENA VEB. Oct. 6, 1967, No. 45665/67. Heading G1F. In a photo-electric distance measurer with a source emitting intensity-modulated invisible light via one optical system to the target and a second optical system receiving that light after reflexion, a visible light source is placed at a focus of one of the optical systems. Aiming of the distance measurer is thereby facilitated. In an embodiment the invisible 18 and visible 19 light sources are associated with a telescope 14 mounted on a rotatable base 11 carrying hollow trunnions 15, 16. The photo-electric receiver 30 is energized along a path incorporating a plane mirror rotatable about an axis 27 to afford preliminary viewing in an eyepiece 28. Prism 20 is selectively silvered. A dial 31, fixed to trunnion 16, is read using a microscope 33 fixed to trunnion 15 to give the rotation of telescope 14 about the axis X 2  -X 2  (and an arrangement, not shown, using the microscope gives the rotation about axis Y-Y normal to the plane of the figure). The other embodiment utilizes two rotatable plane mirrors for permitting visual observation before distance measurement, Fig. 1 (not shown).
Patent GB-1200379-A (GB)
Title: Magnetoresistance element
IPC: B42D9/04
Filed: 1967-10-06
Abstract: 1,200,379. Semi-conductor devices. SONY CORP. 6 Oct., 1967 [13 Oct., 1966; 30 Nov., 1966; 25 Feb., 1967], No. 45698/67. Heading H1K. A magneto-resistance device comprises a substantially intrinsic semi-conductor body 210 (Fig. 5) having spaced P- and N-type regions 203, 204 for injecting carriers into the body and at least one region 205 of high recombination rate so that upon application of a magnetic field carriers are deflected towards the recombination region to decrease the carrier concentration and lower the output current. The recombination region may be formed by polishing, grinding, sanding or etching the semi-conductor surface 210a or by diffusing in a deathnium impurity such as Cu, Au, Fe, Ag, Zn, Mn, Ni or Pt. The semi-conductor may be germanium, silicon or gallium arsenide, and in the case of germanium the P- and N-type regions can be formed by alloying In-Ga and Sn-Sb therewith. A further impurity region such as 214 may be formed in the body 210 to constitute, together with one of the regions 203, 204, a PIP or NIN transistor the characteristic of which also varies with the magnetic field. The body may be of rectangular parallelepiped shape, as shown, and have a second recombination region on the opposite surface 210b, one region having an impurity concentration of 10<SP>15</SP> atoms/c.c. and the other a concentration of 10<SP>14</SP> or 10<SP>13</SP> so that the recombination rates are different. Alternatively the body may be cylindrical with a triangular, circular, trapezoidal or polygonal section, the P- and N-type regions being located at the ends of the cylinder and one or more recombination regions being formed on the side faces or extending over the entire side surface. A process is described for making a device from a silicon substrate by forming a silicon dioxide layer on the surface of the substrate and diffusing in impurities through windows m the layer.
Patent GB-1125145-A (GB)
Title: Coil spring looping mechanism
IPC: B21F35/02
Filed: 1965-10-28
Abstract: 1,125,145. Coiling. R. R. KAUFMANN. 28 Oct., 1965, No. 45718/65. Headings B3E and B3W. Apparatus for forming springs comprises means for feeding wire into the apparatus and means for forming the wire into coils is characterized by including means for driving the formed coils through the apparatus, a first looping means for engaging the leading end of the coil and forming a loop in said end, coil cutting means situated adjacent said first looping means to sever said coil at a point spaced from the leading end to thereby provide the desired length for the springs, means for gripping a severed spring length located on the side of said cutting means opposite said first looping means, and a second looping means situated on the same side of said cutting means for forming a loop in the end of the spring length opposite said leading end. Wire 30 is fed by rollers 32, 34 driven intermittently through a crankoscillated sector and one way clutch, braking means being provided. The wire is formed into a continuous coil 44 by engagement with a forming nose of coiling means 38. The coil 44 is directed through a guideway 48 to means 54 which form a loop in the leading end 52 of the coil. The means 54 comprise a concaveended finger on a slide 114 co-operating with the end of a slide 136. The slides are moved in to bend the end coil 52 at right-angles to the other portions of the coil by pins 112, 134 on camoperated levers. Shearing.-The coil is then advanced through a cutter 56 and is clamped in the guideway 48 by a plate (362), (Fig. 4 (not shown). An upper blade of the cutter is then moved by a cam-actuated rocker arm to co-operate with a stationary lower blade to sever a length of coil. The upper blade is moved by one cam to a position closely adjacent the stationary blade without severing the coil, and by a second cam to complete the movement to sever the coil. After cutting, jaws 60, 62 grip the severed coil length and retract and rotate to present the trailing end of the coil to loop forming means 64 similar to those 54. The slides of the means 54, 64 may also be moved axially slightly to assist loop formation. The means 54 is also movable axially to properly position the looping mechanism by slides 174, 183. The cutter 56 is moved axially away, to permit operation of the means 54, by movement of the slides 174, 183 and is returned to the cutting position by means on the assembly of the gripper jaws 60, 62.
Patent GB-1138464-A (GB)
Title: Saddle for cycles
Inventor: DOLPHIN JOHN ROBERT VERNON
IPC: B62J1/28
Filed: 1965-10-28
Abstract: 1,138,464. Cycle saddles. RALEIGH INDUSTRIES Ltd. 28 Oct., 1966 [28 Oct., 1965], No. 45759/65. Heading B7E. A bracket 12 slot connected to a pillar 13 pivotally supports and provides an abutment 12a for a V-shaped link 15 pivoted at 17 to the saddle. Links 14a and 14b at each side are pivoted together in pairs and cross connected by a pivot 14c and are pivoted to the bracket at 18 and to the saddle at 16. A coil spring 14b retains the saddle in the full line in use position shown and also in the broken line downwardly pivoted and folded position.
Patent GB-1001795-A (GB)
Title: Improvements in and relating to rotary printing machines
IPC: B41F13/40
Filed: 1961-12-21
Abstract: 1,001,795. Rotary printing machines. KLEINEWEFERS, G.m.b.H., [trading as KLEINEWEFERS SOHNE, JOH.]. Dec. 21, 1961 [Feb. 4, 1961], No. 45767/61. Heading B6C. In a rotary printing machine having a plurality of printing cylinders 4 coacting with a central impression cylinder 2, the cylinders are mounted at the ends thereof in solid cast uprights 3, the bearings of the cylinders 4 being carried in carriages 6, each of which is slidably housed within a slot 8 formed in the associated upright 3 between fork-shaped ribs 8<SP>1</SP>. The cylinders 4 are tensioned radially relative to the rotational axis of the cylinder 2 by hydraulic piston-and-cylinder devices 7, each of which connects a bearing carriage 6 with a part of the associated upright.
Patent GB-1031535-A (GB)
Title: Improvements in or relating to azo dyestuffs
IPC: C09B62/00
Filed: 1962-12-06
Abstract: The invention comprises azo dyes of the wherein R is H or an alkyl or al one or two carbon atoms and M is H or a metal, ammonium or amine cation.  The dyes are suitable for dyeing protein and synthetic polyamide fibres such as nylon.  An example is furnished.
Patent GB-921810-A (GB)
Title: Improvements in and relating to vulcanizates
IPC: C08K3/36
Filed: 1961-12-27
Abstract: A sulphur vulcanizate of a vulcanizable synthetic rubber composition contains less than 1,5 parts per 100 of the rubber of metal oxide activator and also rubber reinforcing siliceous fillers.  The filler may be present in amounts from 5 to 200 parts per 100 rubber. Specified rubbers are polybutadiene, polyisoprene, polychloroprene, butadiene-styrene, butadiene-acrylonitrile and butyl rubbers as well as copolymers of conjugated dienes with vinyl chloride, vinylidene chloride, acrylic and methacrylic acids, vinyl acetate, methyl alpha-chloro-acrylate, methyl acrylate, methyl methacrylate, and isobutylene.  Hydrated silica is the preferred siliceous filler. A non-polar mineral oil may also be present, e.g. in amounts from 2 to 50 parts per 100 rubber, as may also activators, accelerators, stabilizers, antioxidants and reinforcing resins. Specifications 730,765, 756,857, 768,074, 788,874, 805,494, 816,686 and 841,156 are referred to.
Patent GB-1328897-A (GB)
Title: Determination of oxygen in moleten steel
IPC: C04B14/00
Filed: 1971-10-05
Abstract: 1328897 Electrochemical analysis FORD MOTOR CO Ltd 5 Oct 1971 [11 Dec 1970] 46223/71 Heading G1N A refractory solid electrolyte with good thermal-shock-resistance comprises stabilized zirconia with 15-85 mol percent beryllia. The zirconia may be stabilized with lime and/or magnesia, yttria or ceria. Powdered graphite or other heat destructable material may be added to improve the shock resistance by leaving the electrolyte porous after sintering. A bonding agent which gives a high density e.g. naphtenic acid is preferred. A process for making closed tube electrolytes is described.
Patent GB-1504826-A (GB)
Title: Tube couplings
IPC: F16L37/12
Filed: 1976-11-05
Abstract: 1504826 Pipe couplings FORD AEROSPACE & COMMUNICATIONS CORP 5 Nov 1976 [17 Nov 1975] 46225/76 Heading F2G A coupling between tubes 12, 25 comprises an annular cage 13 secured on the tube 12 by means of well-formed upset beads 23, 24 and presenting a flange 21 which extends and converges toward the free end 14 of the tube 12 and an outwardly flared end 28 on the tube 25 which is receivable within the cage 13 and extends substantially parallel to the flange 21, a helical garter spring 29 being located between the flange 21 and flared end 28 to prevent separation of the tubes 12, 25, and two 0-rings 32 being disposed in grooves 31 in the tube 12 to provide a seal. The coupling is assembled by pushing the tubes 12, 25 together so that the flared end 28 expands the garter spring 29 which then adopts the locking position shown. For disconnection of the coupling a tool 34 is used which is partly shown in Fig. 4 and includes two pivotally connected arms each carrying at one end a semicircular cylindrical body section 35 which together may be closed around the coupling and provide an annular boss 41 which may be pushed into the cage 13 to expand the garter spring 29 as shown and thus allow the passage of the flared end 28, and also provides a base wall 36 which on removal of the pipe 25 from the pipe 12 with the tool in position will abut the cage 13 at a position which allows venting of the coupling with the 0-rings 32 clear of the flared end. Subsequent removal of the tool will then allow complete disconnection.