baber/WOPTO huggingface dataset:
Patent GB-1469221-A (GB)
Title: Carboxylation process for preparing saturated aliphatic carbo xylic acids or esters
IPC: C07C69/02
Filed: 1975-10-29
Abstract: 1469221 Carbonylation catalysts TEXACO DEVELOPMENT CORP 29 Oct 1975 [25 Nov 1974] 44764/75 Heading B1E [Also in Division C2] A catalyst composition comprises a homogeneous ligand-stabilised palladium (II) halide complex of formula wherein R and R' which may be the same or different, represent a substituted or unsubstituted, alkyl, cycloalkyl, aryl, or alkyl or alkaryl group (up to 12C), Q represents a nitrogen, phosphorus or arsenic atom, Q' a nitrogen or phosphorus atom, X and X', the same or different represents a chlorine or bromine atom, M represents a tin or germanium atom and X is a positive number e.g. 1-100. The catalyst may be used in the same or different represents a chlorine or bromine atom; M represents Sn or Ge; and X is a positive number. The catalyst may be prepared in situ or preformed and examples describe the preparation of ethyl and methyl nonanoate and ethyl heptanoate from 1-octene and 1-hexene respectively using varied catalysts. Many suitable α-olefins are listed, with various hydroxylcontaining co-reactants to yield products such as 2-chloroethyl, n-decyl, ethylene-bis-, propylene 1, 3-bis-, n-dodecyl, phenyl, and 4 oxa-hexylene bis-nonanoates.
Patent GB-1397559-A (GB)
Title: Panels
IPC: E04C2/284
Filed: 1971-09-27
Abstract: 1397559 Moulding panels J G FARR 5 Sept 1972 [27 Sept 1971] 44839/71 Heading B5A [Also in Division E1] A panel formed by placing the various members successively in a mould comprises a steel mesh reinforcement 2 with a body 1 of substantially rigid foamed polyurethane or polyisocyanate sprayed therearound. A wooden frame 3 may be provided having bolt holes or the reinforcement may project at the panel edges. The body may be faced with brick slips 8 spaced by motor or by tiles, slates, marble, asbestos sheets or metal sheets. The isocyanate polymer is formed by mixing di-phenyl methane diisocyanate and a blend of polyols, a blowing agent silicone oils and a catalyst. The panels are used for walls or ceilings and may be bolted together, angle plates being provided at the junction of a wall and a ceiling. The base of a mould may be provided with ribs defining recesses each the size of one brick slip.
Patent GB-1441019-A (GB)
Title: Device for anchoring a textile yarn otno a yarn support
IPC: B65H65/00
Filed: 1973-09-25
Abstract: 1441019 Attaching yarn to bobbins RHONEPOULENC-TEXTILE 25 Sept 1973 [25 Sept 1972] 44921/73 Heading D1J A device, Fig. 3, for securing a yarn 9 to a rotatable yarn support 1 comprises an arm 3 secured at one end to the support 1 for rotation therewith, a polished part-spherical or substantially spherical surface 5 at the free end of the arm 3; and an elongate resilient member 6 adjacent to the arm 3, said resilient member being deformable under the effect of centrifugal force, Fig. 4, to grip the yarn 9 between itself and the arm 3. The member 6 may be a wire or a cylindrical rubber rod. The part-spherical surface 5 is at least 2.5mm in diameter.
Patent GB-1000748-A (GB)
Title: Conveyor drive apparatus
IPC: B65G23/14
Filed: 1961-12-15
Abstract: 1,000,748. Endless conveyers. ASHWORTH BROS. Inc. Dec. 15, 1961 [Jan. 23, 1961], No. 44968/61. Heading B8A. A conveyer drive mechanism 12 co-operates with a flat conveyer belt 1 formed of a flexible mesh fabric, preferably of metal, comprising a plurality of tractive links 2, Fig. 2, pivoted together by tractive pins 3. Each pair of adjacent members 5 form a wedge-shaped structure with the members connected across the narrow end of the wedge so that the belt is longitudinally collapsible to enable it to travel round lateral curves. A pair of endless chains 17 driven by suitably powered sprockets (not shown) has a number of rods 18 mounted thereon by pins 19 to permit pivotal movement of the rods about their own axes. Each rod 18 has a number of driving dogs 21 and has cam follower rollers 23, 24. As the rods 18 move upwardly roller 24 rides round axle 14 and engages cam surface 31 to hold its rod 18 in a rearwardly rotated position with its dogs 21 out of contact with the drive surface of rod 3 while the dogs enter the pockets 22. When roller 24 drops off the end of cam surface 31, dog 21 falls against rod 3 but with no driving force because of a cut-away portion 32 of a cam surface 29. When roller 24 meets the straight portion 33 while roller 23 rolls along a straight portion 28 of a cam surface parallel to the conveyer belt 1, the driving load is taken by the rod 18. At the end of the drive section the driving load is removed from rod 18 by roller 24 rolling along a cut-back section 34 of cam surface 29. As roller 24 contacts a cam surface 37, rod 18 is rotated to bring the dogs 21 out of contact with rod 3. The dogs 21 are withdrawn from the pockets 22 by roller 23 rolling down a cam surface 36. The arrangement is such that only one rod 18 drives at any one time, except at the instant of change-over, the action of the mechanism ensuring a smooth transition of the drive from one set of dogs 21 to the next set. U.S.A. Specification 2,872,023 is referred to.
Patent GB-1526083-A (GB)
Title: Nozzle for welding heating cutting and/or flame cleaning
IPC: F23D14/54
Filed: 1975-10-30
Abstract: 1526083 Cutting torch nozzles IPU Ltd 30 Oct 1975 [2 Nov 1974] 45051/75 Heading F4T A nozzle for welding, heating, cutting or flame cleaning, comprises a nozzle body 2 containing a duct 6 for cutting oxygen and ducts 12, 23, for heating oxygen and gas, opening into mixing chamber 40 which is connected by an annular passage 15 to the outlet end of the nozzle the axial length of the annular passage 15 being less than or equal to its diameter. The body 2 carries a screw-threaded ring 24 which is internally stepped at 28 to define an annular pressure equalization chamber 38 into which the oxygen duct 12 opens, is further stepped at 30 to define an annular duct 33 leading from the chamber 38, and tapers conically at 32 to define with a groove in the body 2 the mixing chamber 40, into which the gas duct 23, which is separated from the annular duct 33 by a screen 36, opens. A further passage (54), Figs. 3-5 (not shown), may extend through the nozzle body on that side of the central oxygen duct 6 which is to the rear in the direction of cutting to convey post-combustion gas. This passage (54) may communicate with an annular chamber (52) into which the gas supply duct opens, or it may have a separate gas supply via solenoid valves and check valves, and may also provide a pilot flame.
Patent GB-971316-A (GB)
Title: Conveyor installation
Inventor: WALMSLEY KENNETH
IPC: B66C13/00
Filed: 1962-11-30
Abstract: 971,316. Elevated railways. LANG BRIDGE Ltd. Sept. 23, 1963 [Nov. 30, 1962], No. 45273/62. Heading B7L. A conveyer has trollies moved around an overhead track 10a provided by a rail 10 incorporating one or more drop sections 11, each connected to a winch 55 to lower the section 11 with a trolley thereon; for each drop section there is a pair of rail sections 15 pivoted at 16 to rail 10 so as to swing upwardly in the event of the drop section 11 being raised to an operative position above the level of track 10a, whilst providing for continuity of the track. Limit switch 68 is engaged by s top 70 carried by a tongue 26 fast with section 11, to stop the motor driving the winch when the section 11 is in the operative position, an overrun switch stopping the motor should switch 68 or a switch defining the lower position of section 11, fail. The winch cable 56 passes around a pulley 27 on tongue 26 and is fixed at 57 to a plate 51 which carries the winch &c. Stops 22 carried by rods 23 slidable relative to bridge member 12, 13, 14 are interconnected by bar 102 which rests on tongue 26 so that as the section 11 is lowered so are the stops on to track 10a to halt trollies on rail 10. A pair of latches 40, 44 are pivoted at 38, 39 to tongue 26, in the operative position the latch 40 abuts a fixed stop to pivot to the dotted line position to allow a trolley to run on to the section 11. The other latch 44 is raised on energization of an electromagnet 63 which rotates lever 66 to engage part 47 of latch 44 to allow a trolley to leave section 11. A switch 58 is closed by a trolley on section 11 and the motor driving winch 55 cannot be operated unless switch 58 is closed. Detents 36, 37, Fig. 2, slidable on shaft 34 and having pins 30, 31 in slots in tongue 26 carrying rollers 36, 37 abutting fixed guides 61, are moved apart by a spring 35 as section 11 is lowered to prevent rotation of the latches which hold the trolley on section 11. When the section 11 is raised the tongue 26 is guided between lateral guides, Fig. 3, not shown, and guides 60 on plate 51.
Patent GB-1406492-A (GB)
Title: Electric motors
IPC: H02K7/11
Filed: 1972-10-02
Abstract: 1406492 Axial-flow pumps VORTEX PUMPEN AG 2 Oct 1972 [7 Oct 1971]  45310/72 Heading F1C [Also in Division H2]  In a submersible pump unit, a main pump is formed by a stator 20/23, a cage rotor 22 and an impeller 34, and drives fluid along a path 41'/41, e.g. in a nuclear reactor, Figs. 1 and 2 (not shown). whilst a subsidiary pump 28 of the same type drives a separate coolant fluid, e.g. water, around a closed path 29, 30, 31 inside the casing 26 of the unit, the latter fluid absorbing heat from the winding 24 of the main stator and giving it up to the external fluid through the casing wall 27. The rotor and impeller are supported on a ball bearing 39 in a spherical dish 33/33", and include a cage 37 and a blade ring 35. The external fluid, e.g. water or liquid metal, enters the unit radially via a blade ring 43. Supply leads 25 may act to provide suspension for the unit. In the unit of Fig. 4 (not shown), the pumped fluid enters the unit (via ports 45, 46) and flows directly over the conductors of the stator winding (24), no subsidiary cooling/pumping system being required. In the unit of Fig. 5 (not shown), a valve plug (74, 75) with a blade ring (78) is rotated slightly in one direction by pumped fluid to bring slits in the plug into alignment with slits (71) in the housing, thereby to allow the fluid to leave the unit; when the flow ceases, a spring (81) rotates the plug in the opposite direction, and so causes regions (75') between the housing slits to block off the slits in the valve plug, thereby preventing back flow of fluid through the pump.
Patent GB-1159129-A (GB)
Title: Improvements in or relating to Window Structures
Inventor: PERSSON SVEN ERIC
IPC: E06B9/264
Filed: 1966-10-12
Abstract: 1,159,129. Venetian blinds. S. E. PERSSON. 12 Oct., 1966, No. 45688/66. Heading E1J. In a horizontally pivoted double sash window provided with a Venetian blind between the sashes, the operating and tilting cords are enclosed for the major part of their length within the window structure and issue through openings in one side of the window. The operating cord is secured by winding on a dealt or by jamming a peg on its terminal knob into the hole through which it issues (Fig. 5, 'not shown).
Patent GB-1069856-A (GB)
Title: Method for purifying terephthalic acid
IPC: C07C51/487
Filed: 1965-10-28
Abstract: Contaminated terephthalic acid is purified by recrystallization from a C3- 8 aliphatic ketone, e.g. cyclohexanone at a temperature above the atmospheric b.p. of the mixture and which is at least 150 DEG C., under pressure.  The acid may be that obtained by liquid phase oxidation of a p-dialkylbenzene, e.g. xylene.
Patent GB-1526814-A (GB)
Title: Electrical equipment terminals or connecting members
IPC: H01R4/38
Filed: 1975-11-07
Abstract: 1526814 Electrical terminal SEPM SA 7 Nov 1975 [13 Nov 1974] 46264/75 Heading H2E An electrical terminal, for clamping and elastically locking a conductor, comprises a cylindrical core with a longitudinal cavity for the conductor and a tapping for a clamping screw, a resilient sleeve encircling the core and conductor, and a screw which extends through an opening on the sleeve into the tapping on the core. In an embodiment (Fig. 1) the core 1 has a tapping 6 on one side and a longitudinal cavity whose plane of symmetry passes through the axis of the tapping, on the other side; the sleeve 2 has an opening 5, through which, a screw 3 extends to secure conductor 7 (Fig. 3) between the core 1 and the sleeve 2. The sleeve 2, being resilient, deforms into an oval shape when the screw 3 is tightened and elastically locks the screw 3. The end of screw 3 has a central annular cavity 8 to retain the conductor 7. In a modification (Fig. 4, not shown) the cavity (14) is in the form of a diametrical slot. In an alternative embodiment (Fig. 5) the terminal 20 forms part of an elastic end pressure contact in which head 18 is connected to terminal 20 through a deformable braided conductor 25, and spring 28. The terminal 20 is similar to that of Fig. 1 but pin 9 is replaced by a crimping barrel 26. In all the embodiments the core and sleeve are preferably made of non-magnetic material, e.g. copper or brass, and the screw is made of a non-magnetic metal which is at least as good a conductor as the metal used for the sleeve and core.
Patent GB-1064615-A (GB)
Title: Improvements in or relating to flexible hoses
IPC: H01B7/00
Filed: 1965-11-02
Abstract: 1,064,615. Flexible hoses. RUBBERFABRIEK VREDESTEIN N.V. Nov. 2, 1965 [Nov. 4, 1964], No. 46292/65. Heading F2P. In making a flexible hose having an undulated outer surface and a smooth inner surface, a mandrel having at least one helically wound reinforcing wire 2 mounted thereon is dipped into a plastisol or organosol which penetrates between the coils of wire to form a wall 5, the hose being then cured and removed from the mandrel. The wires may be coated with an adhesive and comprise a copper or aluminium coated steel core. A hose may be first made and a second coil and wall applied thereto, and, at each end of a hose and to form a sleeve 3, a coil may have the turns thereof arranged substantially in contact.
Patent GB-1360870-A (GB)
Title: Catalyst
IPC: B01J21/06
Filed: 1971-10-06
Abstract: 1360870 Oxidation catalyst DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 6 Oct 1971 [9 Oct 1970] 46460/71 Addition to 1269784 Heading B1E [Also in Division C2] An oxidation catalyst composition comprises oxides of nickel and/or cobalt, iron, bismuth, phosphorus, molybdenum and samarium or tantalum supported on a mixture of a laminar lattice silicate, e.g. montmorillonite and a highly disperse silica. The composition suitably has a surface area of 1 to 20 m<SP>2</SP>/g.
Patent GB-1358545-A (GB)
Title: Method of treating household refuse and apparatus for implementing said method
IPC: C05F9/00
Filed: 1971-10-06
Abstract: 1358545 Compacting household refuse J-J BOYER 6 Oct 1971 [6 Oct 1970 15 Sept 1971] 46539/71 Heading B5A [Also in Divisions C1 and B2] An apparatus for treating household refuse includes a press with a double-acting jack 40, and pistons and chambers 38, 29 (for left hand side) for compressing the refuse so as to provide two symmetrical alternating action presses. Swing door 14 horizontally rotatable about shaft 16 (shown in open position in Fig. 1, left hand side) forces the refuse into the compression chamber and is closed so that plate 19 forms the upper surface of the compression chamber, and locked by pin 23 thrust by cylinder 24 into a hole in the plate 25 provided on frame 15. The lower surface of the compression chamber is formed by a swing door comprising a frame 30 rotatably mounted on a shaft 31 and locked in position by pin 35 driven by cylinder 25 into a hole in thole plate 37 integral with the frame 30. This door is opened to expel the compressed dry material. Perforated tubes 44 actuated by hydraulic rams are pushed into the material under compression to drain liquids therefrom.
Patent GB-1038956-A (GB)
Title: Sliding windows
Inventor: SMITH HAROLD DESMOND
IPC: E06B3/44
Filed: 1963-11-26
Abstract: 1,038,956. Sliding windows; window operating mechanism. HENRY HOPE & SONS Ltd. Nov. 26, 1964 [Nov. 26, 1963], No. 46612/63. Headings E1J and E2M. Operating mechanism for a vertically slidable window comprises an endless driving element 33 composed of two lengths of chain 34, 35 interconnected by rigid rods 36, 37 mounted in the hollow side part 13 of the window frame, the chains passing over rotatable sprocket wheels 31, 32. The rod 36 is connected to the upper of the sliding panels 16 through a connecting element 38. The handle 30 acts through a gearbox in the hollow bottom part 12 of the frame to rotate a shaft 26 on which the sprocket 31 is rigidly mounted, and so operate the upper panel. Each panel is counterbalanced either by a spring means 22 or by a suspended weight. Driving elements may be mounted in both side parts 13 and interconnected by the shaft 26 for synchronous movement. The window may alternatively be operated by a lever attached to the rod 37 and extending through a vertical slot in the window frame, or by an electric motor driving the shaft 26. The window is sealed when shut by means (see Figs. 2-4, not shown) comprising flexible resilient weathering strips 17, 18 on the top edge of upper panel 14 and bottom edge of lower panel 15 respectively, strips 21 (e.g. of wool pile) on the front and rear faces of each panel adjacent the edges thereof for engagement by the channels in which the panels slide, and a strip 20 on the upper panel adjacent its lower edge, engaged by a flange on the lower panel adjacent its upper edge.
Patent GB-1003523-A (GB)
Title: An apparatus for testing materials for fastness to light
IPC: G01N17/00
Filed: 1961-12-29
Abstract: 1,003,523. Testing fabrics. QUARZLAMPEN G.m.b.H. Dec. 29,1961 [June 9,1961], No. 46628/61. Heading D1S. [Also in Division G1] Apparatus for testing textile dyes, paints varnishes for their fastness to light and weathering comprises a turn table 78 rotated by a motor 80 and carrying sample carriers 68 which carry samples 70 on both sides and can each be rotated about their own axis so that, alternate faces of each carrier 68 are turned at predetermined points during rotation of the turn-table 78 towards a radiation source 60 e.g. a xenon long-arc lamp which is in a stream of cooling air 76. Alternatively the carrier 68 may be of triangular section with three sample carrying faces. Air at an humidity and temperature determined by a heater 111 and rotating humidifying plates 114,116,118 fed with water from pipes 120,122, 124 is supplied around the samples 70 and a liquid filled tank 98 may be raised to immerse the samples in water or other liquid. A sprinkler nozzle 140 may also be used to spray liquid on the samples 70. Recording means can be provided. The device is adjustably programmed so that a required sequence of conditions is produced automatically. A safety cut out switch is provided.
Patent GB-1482936-A (GB)
Title: Semiconductor lasers
IPC: H01S5/10
Filed: 1974-10-29
Abstract: 1482936 Semi-conductor lasers STANDARD TELEPHONES & CABLES Ltd 29 Oct 1974 46741/74 Headings H1C and H1K A heterostructure semi-conductor laser is formed by a monolithic structure which includes a laser active region 13 and 14, Fig. 1, and a separate and distinct optical resonator in the form of a closed waveguiding ring 2, a portion 24 of the ring. Fig. 3, extending parallel to and adjacent of the active region to provide an optical coupling for energy transfer between the two components. According to the length of the optical coupling, energy transfer may take place wholly from one path to another and then back to its original path, or may partially or wholly remain in the second path (unidirectional coupling). The former property is used to couple the active region and the resonator, while the latter property is used to provide an output coupling 3. The monolithic structure consists of zinc-doped (N-type) Ga 1-x AP x A s  layers 20, 21, 22 grown on a GaAs substrate 4, together with a mesa 1 formed by further layers 10, 11, 12. Light confinement in the vertical plane is provided by graded band gaps of the various layers, grading being produced by selection of the aluminium content as each layer is deposited in turn. Lateral optical confinement to define the resonator and output waveguides 2, 31 is obtained by using proton bombardment to reduce the electron carrier concentration. A strip of P-type material to provide a P-N junction region 13, 25 between layers 22 and 10, together with optical confinement of the laser active region 13, 14, is obtained by diffusion of P-type material through a windowed masking layer 5. A contact layer 6 is deposited over the mask. The output coupling 3 may be made variable by P-type doping of region 32, the applicafion of a reverse potential across the P-N junction so formed causing a change of refractive index and an electro-optic effect. Such an arrangement provides a variable gain control. A similar P-type doping of a localized region of the resonator ring enables a reverse potential to be used for laser tuning by varying the effective resonator length. A further resonator loop coupled to the first loop may be provided, the coupled loops co-operating to act as a mode filter. Diffusing ends of the laser active layers are provided.
Patent GB-1097068-A (GB)
Title: Synthetic fibres
Inventor: EAST ANTHONY JULIAN
IPC: C08L67/02
Filed: 1965-11-04
Abstract: 1,097,068. Synthetic fibres. IMPERIAL CHEMICAL INDUSTRIES Ltd. Oct. 27, 1966 [Nov. 4, 1965], No. 46796/65. Heading B5B. A fibre or filament having an initial modulus greater than 50 g. per denier is produced by preparing a dispersion of 2-4À5 parts by weight of a polyester in 8-5À5 parts by weight of a polyamide, the total of the dispersion being 10 parts by weight, melt spinning the dispersion, and then drawing the fibre or filament above 70‹ C. Suitable polyesters mentioned are poly-(ethylene terephthalate) and poly-(ethylene - 1,2 - diphenoxy ethane - 4: 41 - dicarboxylate), and suitable polyamides include aliphatic and aromatic polyamides or copolyamides. The water content of the dispersion should not exceed 0À005 molecule per repeating unit of the polyester and the average diameter of the dispersed polyester is preferably between 1 and 12 Á. Other constituents may be present in the mixture, such as pigments, optical brighteners, stabilizers and dispersing agents.
Patent GB-1416488-A (GB)
Title: Mine roof support assembly
IPC: E21F15/04
Filed: 1973-10-08
Abstract: 1416488 Advancing mine roof supports with screens s BERGWERKSVERBAND GmbH 8 Oct 1973 [6 Oct 1972] 46822/73 Heading E1P In an advancing mine roof support system comprising supports 7, 8 adapted to be sequentially advanced, each support is provided with a rigid, flat, screen on its goaf side and each screen is provided at least along its two vertical edges with a flexible seal 2. The upper and lower edges of the screen may also be provided with seals 20, the elastic seals being in the form of loops which are secured to the screen by fastening strips 4 and are preferably re-inforced by spring webs 3. The vertical seals of adjacent props overlap and each screen is secured to its prop by holders 5.
Patent GB-1514970-A (GB)
Title: Sheet delivery apparatus
IPC: B65H29/52
Filed: 1976-11-03
Abstract: 1514970 Sheet-ordering apparatus GEORGE HARTLEY & SONS LTD. 3 Nov 1976 [13 Nov 1975] 46855/75 Heading B8R A set of sheets 10, e.g. from a collating machine, are pushed along and off a table 1 by pushers 3, and are then partially supported by an elongated support rod 5 and an elongated elongated aluminium support strip 6. The angle of inclination to feed direction of the strip 6 is adjustable and is greater than that of the rod 5, which may be parallel to feed direction. The distance between the support members is also adjustable. First the trailing corner 11 of the set, and then the remainder of the set slips off the support, whereby the set is deposited in flat condition on an aligning jogger.