baber/WOPTO huggingface dataset:
Patent GB-1053010-A (GB)
IPC: B23Q9/00
Filed: 1965-11-08
Abstract: 1,053,010. Sawing. A. SCHUMAN. Nov. 8, 1965 [Nov. 16, 1964], No. 47350/65. Heading B5L. Apparatus for sawing openings, such as doorways, in stone or concrete structures comprises a guide track 11 composed of a plurality of track units each attachable to the structure to be sawn and mutually engageable in end-to-end relation, a carriage 13 having mounting means to engage and guide it along the track, traversing means operatively engaged between the carriage and the track for moving the carriage along the track from unit to unit, and means on the carriage for supporting and rotating a disc saw 16. The track consists of a number of units 11A, 11B, Fig. 5 (not shown), each unit having a number of lightening apertures 46. Each of the adjacent ends 47, 48 of the units is formed with an aperture 46A, 46B of half the length of an aperture 46 and an insert 49 is mounted in aperture 46B so as to extend into aperture 46A and provide a coarse aligning means between the units, accurate alignment being obtained by pins 62. The units are formed with counterbored holes 64 for receiving bolts whereby the units can be secured to the face 12 of the structure to be cut; and with tapped holes 65 for receiving threaded studs 66 whereby the units can be adjusted to be in a plane parallel to the generally planar surface of the structure. Each unit is provided with a rack 59 which is engaged by the pinion 60, Fig. 3 (not shown), of a pneumatic motor 26 mounted on a carriage 21 having, at each corner, a block 22 rotatably supporting rollers 23, 24, 25 for co-operating with rails 50, 51 on the track units. The carriage supports a pair of posts 27 on which a frame 29 is slidably adjustable by a screw 32 rotatable by a crank 35, the frame carrying a motor 37 connected by a reduction gear-box 38 to a shaft having a clamp 40 for a disc saw which is preferably diamond toothed, rotation of the screw by the crank adjusting the depth of cut of the saw. The motor 37 is driven by a high pressure air supply around 100 lb./sq. inch, and the supply is connected through a pressure regulator and a reversing valve to the motor 26 driving the carriage, the supply to the motor 26 being approximately 20 lb./sq. inch. The saw is equipped with a guard 17 and a water cooling supply. Some of the rollers are mounted in eccentric sleeves which are angularly adjustable so that the rollers can be maintained in contact with the rails regardless of wear.
Patent GB-1487223-A (GB)
Title: Purifying uranium liquors
IPC: C22B3/20
Filed: 1974-11-01
Abstract: 1487223 Purifying uranium liquors WESTINGHOUSE ELECTRIC CORP 1 Nov 1974 [1 Nov 1973] 47394/74 Heading ClA Uranium is separated from an aqueous liquor containing uranyl ior and contaminating cations in a method comprising the steps of (a) mixing the aqueous liquor with recycled uranium complex; (2) extracting this aqueous liquor with a non-interfering, water immiscible organic solvent containing a dialkyl phosphoric acid which reacts with said uranyl ions forming a complex soluble in the solvent; (3) stripping the organic solvent with an aqueous solution containing at least enough ammonium and carbonate ions to precipitate a uranium complex; and (4) recycling a portion of the precipitated complex to step (1). The complex precipitated is ammonium-uranyl-tricarbonate which may subsequently be calcined either in a reducing atmosphere to produce UO 2  or in an oxidizing atmosphere to produce U 3 O 8 . The use of di-2-ethyl-hexylphosphoric acid is exemplified and the alkyl phosphoric acid may be used in combination with a synergistic agent, e.g. trin-octyl phosphine oxide. The organic solvent used is preferably a linear hydrocarbon with from 10 to 14 carbon atoms.
Patent GB-479369-A (GB)
IPC: F02B75/22
Abstract: 479,369. Rotary distributers. BERNARD, J. Sept. 18, 1936, No. 25406. Convention date, March 10. Drawings to Specification. [Class 38 (v)] [Also in Group XXVII] In magneto-distributers for radial-cylinder engines, the fixed contacts are spaced unequally to compensate for the cyclical differences in movement between pistons attached to the master and secondary connecting-rods. The leakage path necessary between the distributer rotor and the contact from which it is receding may thus be made of uniform and minimum size, permitting the use of a smaller distributer.
Patent GB-1390309-A (GB)
Title: Hollow-cathode laser tube
IPC: H01S3/03
Filed: 1973-10-17
Abstract: 1390309 Lasers NIPPON ELECTRIC CO Ltd 17 Oct 1973 [17 Oct 1972 5 Dec 1972] 48417/73 Heading H1C A negative glow metal vapour laser tube has a plurality of spaced tubular cathode members 6, Fig. 2, aligned along the tube axis and disposed within a tubular anode 8, each cathode being individually connected through a cathode connector 7 to a common power supply. In the schematic arrangement shown the metal vapour is produced from metal pellets 10, and the electrodes are enclosed in a glass envelope 4 containing helium as a carrier gas and having Brewster windows in the radiation path. In a detailed embodiment, Fig. 3, each cathode 6 is both supported and externally insulated by a pair of flanged ceramic tubes 12, the outer surface of the flanges being metallized and secured by solder to flanking anode tube sections 13. The laser tube envelope, Fig. 5, is formed by assembling a series of the combined cathodeanode portions 14 of Fig. 3, the end portions being joined to ceramic flanged tubes 16 terminated by auxiliary anodes 17 which prevent metallic vapour deposition on Brewster windows 21. To produce a uniform negative glow discharge within the spaced cathodes and along the tube axis, each cathode is connected to a common power source 23 through an individual balancing resistor 24. An auxiliary power source 22 is provided for the auxiliary anodes 17. The vaporizable metal pellets 10 may consist of cadmium, zinc, selenium, tellurium, caesium, tin, manganese or mercury.
Patent GB-1202261-A (GB)
Title: A turbogenerator having a rotor field winding which is directly liquid cooled
IPC: H02K3/22
Filed: 1967-10-25
Abstract: 1,202,261. Cooling turbo-generator rotors. BROWN BOVERI & CO. Ltd. 25 Oct., 1967 [27 Oct., 1966], No. 48501/67. Heading H2A. In a turbo-generator having in slots of a rotor body 1 a directly liquid cooled rotor feed winding 2, but no means for renewing the gas in the air gap, at least some of the slots contain at least one axial coolant conduit disposed radially outside the winding, extending outside the body to radially within rotor caps 4 over the whole winding heads 3, and connected to a field winding liquid coolant distribution damper 7. The invention is concerned with the heating of the rotor caps and body by eddy currents induced by the air gap field and, the conduits in the embodiment shown are Cu or stainless steel hollow rods 11, 11<SP>1</SP> (31 in Fig. 5) interconnected at one end by a ring header 15, whilst the connection to the chamber 7 at the other end comprises a subdivided ring header 12 and pipes 13, 13<SP>1</SP>. Wedge-shaped members 32 assist heat conduction, damper bars 33 may be provided, and the cooling liquid may be water. In Fig. 2 a magnetic pipe (21) passes from the chamber 7 through grooves in the pole zone to supply the water to a ring header (22) at the far end. The gap contains a cylinder 10 whereby the rotor chamber pressure is reduced below the ambient to reduce frictional losses.
Patent GB-1502626-A (GB)
Title: Drilling machine with extensible support
IPC: E21B19/084
Filed: 1975-11-26
Abstract: 1502626 Rock drills A AIRAUDO 26 Nov 1975 [26 Nov 1974] 48560/75 Heading B3C [Also in Division E1] A machine for deep drilling comprises fixed lower uprights 1 and a mobile upper part having uprights 11 slidable parallel to the uprights 1, e.g. by pulleys 10, 10a fixed respectively to the lower ends of uprights 12 and to the upper ends of uprights 1, and running on the corners of the adjacent upright 1 or 11 respectively. A motor or rotating head 16 is guided along the uprights 11, e.g. by pulleys 17a mounted on supporting runners 17 and running along the adjacent corners of the uprights 11. The lower end of each upright 1 is connected to the upper end of the adjacent upright 11 by a double-acting jack 15 which may be located in the upright 1. Each upright 11 has a pulley 19, 21 at each end, chains (18) (Fig. 4, not shown), 20 passing round the respective pulleys and being each fixed at their ends to the rotating head 16 and to a strut or struts 3, 3a rigidly connecting the upper ends of the uprights 1, such that the rotating head 16 travels upwards or downwards at twice the speed of the uprights 11. Preferably the axes of the jacks 15 and pulleys 19, 21 are in the same plane, whilst the longitudinal axis of the rotating head 16 and the chains connecting it to the pulleys 19, 21 lie in a different parallel plane. Means for adjusting the tension in the chains (18), 20 may be provided at their anchorage to the struts 3, 3a (Fig. 13, not shown). The pulleys 10, 10a may be mounted to allow a degree of movement (Figs. 11, 12, not shown) to achieve a constant load of the pulleys on their races. Flexible tubes 23 &c. such as used to supply hydraulic fluid to the rotating head 16 can be supported on a roller 24 mounted at the top of the uprights 11 and may be attached to an airtight connecting piece rigidly fixed to the struts 3, 3a, hanging loops in the tubing thus being avoided. The position of the spindle 37 of the roller 24 may be adjusted to take up slack in the tubing. The uprights 1 may be anchored at their bottom ends to a drilling face 2 having an orifice 2a for the passage and centring of the drilling rod. Cheeks 5 secured to the uprights 1 allow the machine to pivot so that drilling may be effected in any position from vertical to horizontal. The machine may be fitted to the chassis of a lorry.
Patent GB-1371913-A (GB)
Title: Process for pretreating surfaces of artificial plastics materials for electroless plating
IPC: C23C18/36
Filed: 1971-10-19
Abstract: 1371913 Pre-treatment and electroless plating of plastics SCHERING AG 19 Oct 1971 [23 Oct 1970] 48580/71 Heading C7F An ABS plastics, modified polyolefin, polymer of an ester of acrylic acid, or polyamide, is pretreated for electroless plating by (i) treating with chromosulphuric acid, (ii) activating and (iii) treating with an aqueous solution containing a boron hydride compound. Steps (i) and (ii) may be separate, or simultaneous using CrO 3 /H 2 SO 4 / PdCl 2  with or without H 3 PO 4 . The boron hydride compound may be NaBH 4 , or R<SP>1</SP> R<SP>2</SP>R<SP>3</SP>NBH 3  where R<SP>1</SP> = lower alkyl and R<SP>2</SP>, R<SP>3</SP> = H or lower alkyl, and may be used in concentration 0À0001 to 0À1 mole/l, or in the case of subsequent Ni plating, the solution may also contain 0À1-0À5 mole/l of the reducing agent to be used in the Ni bath, e.g. NaH 2 PO 2 , in which case the amount of B compound may be as low as 0À00005 mole/l; the treatment temperature is 25-50‹C and the solution may also contain N 2 H 4 .H 2 O. The electroless Ni bath may contain 20-30 g/l Ni salt, e.g. NiSO 4 , 40-70 g/l complex former/buffer, e.g. citric or succinic acid, and 10-30 g/l alkali metal hypophosphite, e.g. NaH 2 PO 2 ; an electrolytic layer may be applied to the electroless Ni.
Patent GB-1184661-A (GB)
Title: Production of Pile Fabrics.
Inventor: HASLER WILLIAM SANDFORD
IPC: D04H11/04
Filed: 1966-11-01
Abstract: 1,184,661. Laminates including yarn layers. SINGER COBBLE Ltd. 8 Jan., 1968 [1 Nov., 1966], No. 48872/68. Heading B5N. [Also in Division D1] A pile fabric is made by presenting yarns to a carrier structure 11a comprising successive spaced support elements 11b extending transversely of the yarns, forming said yarns into loops 12 by depressing between elements 11b, adhering backing 15 to the supported yarns and separating the loops from the carrier structure. The yarns may be formed into loops by tufting needles 13 reciprocating in synchronism with the motion of the carrier structure. Backing 15 may be a hot-melt adhesive 15 and a secondary backing 17 may be applied. Heat and pressure may be applied at 19 to activate the adhesive. In an alternative arrangement, the yams may be provided in sheet form and the needles 13 replaced by a reciprocating bar. Apparatus for carrying out the process is claimed.
Patent GB-1534410-A (GB)
Title: Stations for radioelectric transmission
IPC: H04B7/26
Filed: 1976-11-24
Abstract: 1534410 Signalling between master station and subordinate station(s) THOMSON-CSF 24 Nov 1976 [27 Nov 1975] 49094/76 Heading G4H [Also in Division H4] A signal transmission system comprises a master station M and one or more substations S. The master station comprises a directive antenna 1; means 20 for rotating at uniform speed the beam of the antenna; means 2 for receiving RF signals representative of digital signals; n(>1) detecting means 11 coupled to means 2 for respectively detecting n different identification signals; n time expansion circuits 30 controlled by respective means 11, each time expansion circuit comprising a memory, means for recording therein a limited number of digital signals delivered by means 2 upon detection of an identification signal by the respective means 11, and, means for reading the signals recorded in the memory; means 19 for generating a digitally coded master station identifying signal; and means 2-3 for recurrently transmitting through the antenna RF signals. representative of the identifying signal. Each subordinate station comprises a directive antenna 101; means 102 for receiving RF signals representative of digital signals; a detecting arrangement 111 for supplying a control signal upon detection of a predetermined identifying signal, subject to this detection being separated from the last supplied control signal by a duration longer than a threshold value; means 119, controlled by the control signal, for generating a digitally coded identification signal; a time compression circuit 110 comprising a memory, means for recording information digital signals therein, and means for reading a limited number of digital signals recorded therein when an identification signal has been generated; and means 107 for transmitting RF signals representative of the identification signal and the limited number of signals. The transmitted information may be delta- PCM encoded speech between mobile vehicles.
Patent GB-1400608-A (GB)
Title: Transcalent semiconductor device
IPC: H01L23/04
Filed: 1972-10-25
Abstract: 1400608 Semi-conductor devices RCA CORPORATION 25 Oct 1972 [31 Jan 1972] 49176/72 Heading H1K [Also in Division F4] A semi-conductor device includes a PN junction terminating at the surface of a semiconductor body, the junction being protected by insulation, the insulation being contacted by a heat pipe to cool the device. The device may comprise a transistor or thyristor (as shown) having junctions 40, 42 terminating at the surface 14 of the body, part 40 of the junctions being protected by insulation 54, e.g. thermally grown SiO 2 , part 42 being shorted and having thereon metal layers 58, 60, 62. A layer 56 of polycrystalline silicon may be interposed between layer 54 and metal layer 58. A heat pipe construction comprising a base member 83, e.g. of solder plated copper particles, and an envelope 76 is soldered to metal layer 62, and contains a vapourizable liquid, e.g. water. The heat pipe forms the cathode of the device, the annular portions of the metal layers forming the gate electrode. A similar heat pipe construction may be present on the other surface of the body and forms the anode connection. The body may be of silicon, doped with boron and phosphorus, the metal layers being of evaporated palladium, or palladium and platinum, chemically deposited tungsten, and electroplated nickel. The gate electrode may be enclosed on a metal and ceramic housing which also protects the side faces of the body.
Patent GB-1407465-A (GB)
Title: Bed-sheet sleeping arrangement
IPC: A47G9/08
Filed: 1972-10-25
Abstract: 1407465 Restraining straps H R KRARUP 25 Oct 1972 49291/72 Heading A3V [Also in Division A4] A bed-sheet sleeping arrangement has bag 3 having neck and arm openings stitched on to a draw sheet 1 by at least one, preferably triangular piece of fabric 2, the draw sheet having means, e.g. straps 4, Fig. 3, with end rings 5 for fastening it to a bed. When the bag is connected to the right-hand side of triangle 2 as in Fig. 2 the person in the bag is prevented from getting out of bed but is able to sit up. If alternatively the top half of the bag only is connected to the left-hand side of triangle 2, the person is prevented from sitting up although movement is possible. Two pieces of fabric may connect the bag and sheet as at 2a or three as at 2, 2a.
Patent GB-1111099-A (GB)
Title: Method of producing isoprene
IPC: C07C2/30
Filed: 1965-11-19
Abstract: Isoprene is obtained by the demethanation of 2- or 3-methylpentene-2 obtained by codimerizing ethylene and a butene in the presence of an alkali or alkaline earth metal or hydride thereof.  The dimerization catalyst is preferably coated on a support of activated carbon, a molecular sieve or alumina in an amount up to 60% of the total. Dimerization is preferably effected continuously at 50-300 DEG  C., 0.2-20 vol./vol./hr. and 500 to 1,500 p.s.i.g. The product is pyrolysed at 300-1000 DEG  C. and up to 500 p.s.i.g. for 0.001-3 seconds using a diluent and possibly an inert contact material.
Patent GB-1124048-A (GB)
Title: Spinning frames
IPC: D01H7/92
Filed: 1965-11-22
Abstract: 1,124,048. Double twist spindle. SULZER BROS. Ltd. 22 Nov., 1965 [18 Dec., 1964], No. 49512/65. Heading DID. Apparatus for double twisting yarn coming from drafting rollers 1 via a false twist tube 3 comprises a flyer 18 driven via helical gearing 23, 23a, a package carrier 24, 25 carrying a plate 39 with magnets 42 to be magnetically driven by a plate 44 having magnets 43 and being rotated by a belt 46. and a thread guide arm 33 on a carriage 32 vertically movable on a track 31 on a stationary cam 29 to lay the yarn in cross-wound fashion on the package 26. In an alternative form can 29 may be rotated and package 26 held stationary. In the form shown the balloon is restricted by a shield 16 and possibly by an optional shield 15. The guide arm 33 (see Figs. 4 and 5 not shown) has a magnet (35) on its carriage 32 and this co-operates with a magnet 36 outside the shield 16. Magnet 36 is mounted on a rod 37 which is vertically reciprocated by the cam and lever device of Fig. 6 (not shown); thus guide arm 33 is traversed. The cam is shaped to raise the guide arm 33 quickly and lower it more slowly. The magnets (35, 36) also co-operate to prevent can 29 rotating. The magnetic drive to package 26 acts as a slip clutch arrangement so that the decreasing speed of package 26 during the build can be accommodated. By driving tube 3 at high speed a crimped or bulked yarn may be produced. False twist device False twist tube (3) (Figs. 2, 3 not shown) with an upper saddle (14) is supported and driven by rollers (11, 12, 13), drive being transmitted to roller (11) from a belt (8) on rollers (7) via a roller (9). Rollers (9, 11, 12, 13) are mounted on an arm (4) pivoted at (6) so that when arm (6) is upwardly pivoted to allow removal of a full package (26) roller (9) is moved out of engagement with band (8) and the drive to the tube is interrupted. The tube 3 may be replaced by a pin with saddles at the top and bottom.
Patent GB-1108734-A (GB)
Title: Manufacture of expanded cellular products
IPC: B29C44/32
Filed: 1964-12-26
Abstract: <FORM:1108734/C3/1> Generally cylindrical lengths of expanded plastics material are produced from liquid reaction mixtures in an apparatus in which after deposit on a moving support, the mixture is supported by moving side supports having at least in part an arcuate section leading to the required generally cylindrical shape of the expanded material.  In Fig. 2 the mixture is deposited at station S on to conveyer 13 from oscillating head 10 on to a weir 111 over which it flows as it starts to foam.  Support is provided by conveyers 26 and 28 entrained round sprockets 34 and driven by motors 38 (Fig. 1, not shown).  Attached to the segments 30 are support pieces 56, 56a (Fig. 4, not shown), covered by release paper W within which the foam expands to a generally cylindrical configuration. Polyurethane foam production is exemplified.
Patent GB-1019156-A (GB)
Title: Improvements in or relating to nuclear fuel materials
Inventor: BELLAMY ROY GRAHAM
IPC: C22C43/00
Filed: 1963-12-17
Abstract: A uranium based alloy, suitable for use as a nuclear reactor fuel, comprises 100-1500 p.p.m. of aluminium and one or more of Cr, Mo, Rh, Re, Ir, Os, Ru, Ni, Co, Si, Nb, Pt, W, V and Mn in an amount sufficient to produce a grain size not greater than 0.5 mm. but insufficient to cause an increase in neutron absorbing properties of more than 0.1%, the balance, apart from incidental impurities such as carbon, being uranium.  The alloy is quenched (e.g. by water) from a temperature in the b  phase region (e.g. 720  DEG C.) and annealed at a temperature in the a  phase region (e.g. 500  DEG C.).
Patent GB-1171452-A (GB)
Title: Improvements in the production of Poly (Methylene Sulphide)
IPC: C08G75/00
Filed: 1966-11-07
Abstract: 1,171,452. Preparing polythiomethylenes. STAUFFER CHEMICAL CO. 7 Nov., 1966 [15 Nov., 1965], No. 49792/66. Heading C3P. Polythiomethylenes are obtained by reacting hydrogen sulphide with formaldehyde in the presence of, as catalyst, a metal trithiocarbonate. The formaldehyde may be gaseous, in aqueous solution or as solid paraformaldehyde. In the examples H 2 S and an aqueous formaldehyde solution are reacted in the presence of NaCS 3  and in some cases ethylene glycol, its dimethyl ether or a commercial dispersant. The polythiomethylene obtained is suitably treated with mineral acid, deionized water and then dried.