baber/WOPTO huggingface dataset:
Patent GB-1195307-A (GB)
Title: Dimerisation of Olefines
Inventor: SAMPSON ROY JOHN
IPC: B01J23/78
Filed: 1968-03-04
Abstract: 1,195,307. Dimerizing olefins. IMPERIAL CHEMICAL INDUSTRIES Ltd. 20 Feb., 1969 [4 March, 1968], No. 10290/68. Heading C5E. [Also in Division B1] An olefin containing at least 3 carbon atoms is dimerized or co-dimerized with at least one other olefin using a co-precipitated silica-based catalyst containing NiO and 0À1-10% by wt. Al 2 O 3 . The nickel content is preferably 2-12% by wt. calculated as metal. Co-precipitated MgO may also be present in amount up to 10%. The catalyst preferably contains up to 0À8% by wt. of an alkali metal oxide, calculated as metal, when the mixture of olefins includes a proportion of a branched olefin. The dimerization may be carried out in gaseous or liquid phase at 0-120 C. Examples describe the dimerization of propylene and the codimerization of propylene with various butene isomers.
Patent GB-1385899-A (GB)
Title: Apparatus for controlling the acceleration of a gas turbine engine
IPC: F02C9/32
Filed: 1971-04-21
Abstract: 1385899 Gas turbine engine fuel control systems JOSEPH LUCAS (INDUSTRIES) Ltd 14 April 1972 [21 April 1971] 10382/71 Heading G1N In a gas turbine engine fuel control system in which variations in fuel flow to accelerate or decelerate the engine are responsive to variations from a pre-set level of a servo-pressure signal P S  controlled by a valve 10 having an element 11 movable in response to a control signal C 2 , the signal P S  being at the pre-set level when the element 11 is in a datum position, a first electrical signal Y proportional to the displacement of the element from the datum position is compared with a second electrical signal Y 1  proportional to a calculated value of said displacement (derived from engine operating conditions N, PA, T 1 ), to provide a supplementary control signal C 1  for over-riding the control signal C 2  As shown in Fig. 1, the pressure signal P S  is derived from an air potentiometer 16, 17, 18 supplied with pressure signals P A , P B  derived from the engine. A fuel flow controller 15 is responsive to the signal P S  and a signal derived from an electrical control system 14, Fig. 2. The displacement of the element 11 is sensed by a transducer 13 to provide the signal Y, and the element 11 is positioned by a device 12 in response to a signal from a position control circuit 10a and an output from the circuit 14. As shown in Fig. 2, a function transducer 20 provides a signal P B1 /P A1  = f(<SP>N</SP>/#T 1 ) where P B1  and P A1  are related to the pressure PB and PA, N is the engine speed, and Tithe intake temperature. A signal P B1  is derived from a multiplier 21 and a device 23 provides a signal #<SP>N</SP>/ PB1  where #N corresponds to engine acceleration derived from a differentiator 22. The signal <SP>#N</SP>/ PB1  is applied to a function generator 24 which provides the signal Y 1  which is compared at 25 with the signal Y. The error E is applied to a function generator 26 which supplies a signal which represents an upper permitted limit of the ratio <SP>#N1</SP>/ PA2  where #N 1  is a calculated value of engine acceleration and PA2 is a calculated value of PA. This signal is supplied to a multiplier 27 which provides a signal corresponding to an upper limiting value of #N 1  which is compared with the N signal at 28 to provide the supplementary control signal C 1  which corresponds to a demand for fuel flow which will accelerate the engine by the maximum permissible amount. A discriminator 29 provides a control signal C for the valve 10 and is responsive to the lower of the two signals C 1  and C 2 . A signal which is a function of the throttle position # may also be supplied to the discriminator 29.
Patent GB-740481-A (GB)
Title: Improvements in or relating to the drawing or rolling of metal
IPC: B21B1/28
Filed: 1953-04-16
Abstract: In cold-rolling or cold-drawing non-ferrous metals after intermediate annealing operations the metal surface has the scale or film loosened by a lubricant comprising a mixture of mineral oil, with which may be incorporated a small proportion of vegetable, animal or fish oil, and a weak acid such as phosphoric or sulphonic acid of sufficient strength to loosen the scale without attacking the metal surface.  A wetting agent such as aliphatic alcohol may also be added.  In an example the medium comprises 40 gallons of mineral oil such as a pure hydro-carbon oil with 2 3/4 pints of phosphoric acid and 1/3 pint of n-butyl alcohol.  Felt or other absorbent pads remove the loosened scale while leaving a film of lubricant on the metal.  After the final annealing operation the metal may be cleaned in a weak acid bath, dried by wipers, hot air &c. and finally cleaned by phosphor bronze brushes followed by bristle brushes.
Patent GB-1065084-A (GB)
Title: Improvements in or relating to electrodes and process for the electrical discharge treatment of polymeric material structures
IPC: B26F1/28
Filed: 1964-03-12
Abstract: 1,065,084. Printing processes. E. I. DU PONT DE NEMOURS & CO. March 12, 1964 [March 12, 1963], No. 10587/64. Heading B6C. [Also in Divisions B5 and H1] Moving organic polymeric structures such as perforated or non-perforated films, extruded or moulded netting, woven or non-woven textiles, and paper-like structures are rendered more printable or more receptive to adhesive or other coatings by discharge treatment between two electrodes at least one of which comprises a stack of lamellµ 2, 3 of conductive and dielectric material respectively, edge on to, and separated by an elongated dielectric portion from an elongated conductive portion extending the entire length of the electrode and adapted for connection to a source of alternating potential. As shown the lamellae 2, 3 are mounted on a dielectric core 4 and are separated by dielectric portion 5 from conductive portion 1 which is provided with a connecting lug 6. Alternatively the core 4 may be conductive with an insulating covering to provide said conductive and dielectric portions. The lamellµ 2 may be of metals such as aluminium, steel, copper, brass, zinc, cadmium, nickel, chromium, and alloys thereof, or of graphite, and may vary in thickness from 0À25 mil. to <SP>1</SP>/ 8  inch. The lamellµ 3 may be of naturally occurring dielectric materials such as mica and asbestos, or synthetic dielectric materials such as thermoplastic and thermosetting polymers, or resin-impregnated papers and textiles, or ceramics, and may be as thin as 0À15 mil. The lamellae 2, 3 may be manufactured individually or as a composite structure, and may be of circular or other shape. A working gas may be supplied through a longitudinal bore in the core 4 in communication with a longitudinal slot in the electrode face. The second electrode 7 may be of conventional construction, as shown, or may be of identical lamellar construction.
Patent GB-253302-A (GB)
Title: Improvements relating to centrifugal pumps
IPC: F04D29/22
Filed: 1925-04-24
Abstract: 253,302. Millington, W. E. W. April 24, 1925. Disc-supported-blade pumps.-The impeller of a centrifugal pump has a number of passages b, c, d, the walls a of which are so shaped that the liquid at the part X of each passage flows in a direction normal to the radius at the part. The tips of the walls a may be radial, or inclined to or coincident with the periphery. The impeller may be associated with a casing of the type described in Specification 253,303.
Patent GB-544398-A (GB)
Title: Improvements in and relating to cop winding machines
IPC: B65H54/38
Filed: 1941-08-25
Abstract: 544,398. Winding yarns. MASCHINENFABRIK SCHWEITER AKT.-GES. Aug. 25, 1941, No. 10814. Convention date. Oct. 2, 1940. [Class 120 (ii)] In a machine for winding cross-wound cops, ribbon winding is prevented by driving the traverse cam and the drum driving the cop by individual worm wheels having threads of opposite hand and gearing with a pair of unitary worm wheels driven from the main drive and reciprocated axially along their shaft continually during winding. As shown the shaft 17 of the traverse cam 18 and the shaft 11 of the friction drum 15 driving the cop 64 carry worm wheels 16, 10 meshing respectively with unitary worm wheels 8, 9 of opposite hand slidably mounted on a main driving shaft 1 carrying a boss 5 having a pin 6 slidably engaging a bore in the wheel 7. A groove 53 in the boss of the worm wheels 7, 8 is engaged by a fork 52 fulcrumed by bolts 50 in forked lever 47 pivoted on a bolt 48 and having a roller 44 on its arm 46 engaging a cam groove 43 in the face of a gear wheel 41 driven from the shaft 11. The traverse cam is housed in an extension 19 of the gear box 2 and engages a block 24 on a hub 21 on the yarn guide plate 22 which is guided laterally by its bent end 27 engaging a slot in the extension 19. The hub 21 projects through a slot in the extension into the cover 31 therefor the extension and cover having runways 29, 30 for guiding the plate 22 and the spaces 32 between the runways serving to trap any oil ejected from the gear box and return it to the box through holes at the ends of the runways. The cop tube 63 is mounted on a spindle 61 carried by a holder 58 slidably mounted on a pillar 57 fixed on the cover 55 of the gear box, a setscrew 59 in the holder engaging a groove 60 in the pillar.
Patent GB-658353-A (GB)
Title: A method of and apparatus for mounting silk gauze for use as a screen in printing or stencilling machines
IPC: B41F15/36
Filed: 1949-04-23
Abstract: 658,353. Stretching fabrics. McCORMICK, W. P. April 23, 1949, No. 10838. [Class 42 (i)] [Also in Group XVI] Silk gauze is stretched to the required tension for use as a screen in a silk screen printing- machine by means of a stretching device A comprising a rigid rectangular frame 1 within which are located, one along each side, four channel members 2 each connected to the frame 1 by nuts and bolts 3. Within each member 2 is located a gripper element consisting of a pair of wooden bars 4 fitting into each other by means of a projection and recess 4A throughout their length. A piece of gauze C is placed with each edge held between the bars 4 of a gripper element, which is held firmly in position in the member 2 by adjustable bolts 5 screwed into tapped holes 6 in the member 2. The bars 4 are protected by U-shaped metal casings 7. The gauze is tensioned by adjusting the nuts 3 to separate the opposing gripper members. Then, by raising one end of the stretching device, a rectangular frame B of a cast alloy is placed under the gauze within the device A, or may be within the device A in the first place. The gauze is stapled, glued, or both, to the top of a wooden frame 8 bolted to flanges 9 of the frame B, cut round the outer periphery of the frame 8, and trimmed if necessary. The frame B has on two sides guide rails 10 so that the screen can be slid into position in guide channels in the printing machine. The frame 1 may be of channel section so that the horizontal part can be secured to a base. The abutting faces of the bars 4 may be roughened to grip the gauze better.
Patent GB-142097-A (GB)
Title: Improvements in valveless pumps
IPC: F04B3/00
Filed: 1920-04-19
Abstract: 142,097. Saussard, L. April 19, 1919, [Convention date]. Combined fixed and moving cylinder pumps; reciprocating-cylinder pumps.-A pump for lubricating &c. comprises an outer fixed casing 1, and a reciprocating hollow rectangular piston 2 inside which a second rectangular piston 3 is reciprocated by an eccentric 5 in a direction transverse to the direction of movement of the piston 2. The piston 2 has two ports 6, 7. The piston 3 has ports 8, 9, 10, 11, and channels 16, 15 in the eccentric connect the ports in the piston with the inlet 14, and the outlet 12 respectively. In a modification, two delivery ports are provided. The eccentric and the pistons are of equal thickness in the direction of the axis of the eccentric.
Patent GB-401585-A (GB)
Title: Improvements in or relating to piston spinning pumps
IPC: F04B1/12
Filed: 1933-04-11
Abstract: 401,585. Revolving-cylinder pumps. STOUTZ, R. DE, 36, Kreuzb³hlstrasse, Zurich, Switzerland. April 11, 1933, No. 10855. Convention date, April 11, 1932. [Class 102 (i).] A swash-plate type piston pump is provided with traverse cam-actuating members shaped to impart a uniformly accelerating movement to the piston followed by a uniformly retarded movement such that the speed curve is of parabolic shape. The traverse cam member co-operates with pegs guided in longitudinal grooves in the surrounding drum. The pump casing 1 has two covers 2, 3 of which the latter carries a bearing for the driving shaft 4 and also contains the fluid-conveying passage. A drum 5 is mounted in the casing 1 upon the shaft 4 and transmits the drive to a drumshaped piston carrier 7 by a driving pin 6. The pump pistons 8 are provided with cylindrical heads for engagement with actuating members 9 guided in the rotatable member 5. The rear cover 2 has a traverse disc 10 with its guide face obliquely disposed to the axis and is in sliding engagement with blocks 11 which constitute spherical end abutments for rods 12 which bear at their other ends on the pistons. The traverse disc 10 is employed to effect the delivery stroke, while the return suction stroke is effected by an annular cam 13 secured to the casing 1 by pins. This cam co-operates with pegs 15 secured to the actuating members 9 and projecting through slots in the drum 5. The suction cam 13 can be adjusted axially by means of regulating screws 17 and pins 18 in order to compensate for wear. The shaft 4 has a spherical enlargement 20 which is urged on to the piston carrier 7 by means of a spring 19 whereby also the carrier 7 is pressed on the port face of the cover 3. At its other end the spring abuts through a spherical ball on the cover 2. Working liquid enters the pump at 27 and flows through the passages 23, 24, thence into the cylinders and is delivered through passages 26 to the outlet 27<1>. In a modification the spherical connections of the members 12 with the traverse end plate on the cover 2 are dispensed with and springs are disposed between regulating screw 17 and rod 18. In a further modification the slidable members 12 are guided in an extension on the piston block 7 and as an alternative the piston may be formed in one with the rods 12. By reason of the piston members 8 and the plunger members 12 being carried in separate bores, it is possible to prevent mixing of the lubricant with the material being pumped which is especially important when the pump is used for viscose in spinning operations.
Patent GB-285689-A (GB)
Title: Improvements in bleaching machines
IPC: D06B3/24
Filed: 1927-04-23
Abstract: 285,689. Jackson & Bro., Ltd., and Taylor, C. April 23, 1927. Piled and packed materials, treating with fluids; winch machines; circulating fluids through travelling materials; plant for series of operations. -An apparatus for bleaching fabrics in a continuous manner from grey to finished white in a single handling comprises means for saturating the fabric in open width, means for converting the fabric into rope form, and means for feeding the fabric in rope form into successive U-shaped independent compartments of a kier each with its own pump for circulating the liquid therein. The fabric in open width is passed through a bath 7 with squeeze-rolls 8, 9, which bath may be mounted on the kier 1. The fabric then passes through the first of a set of reciprocating eyes 13, between a pair of feed squeeze-rolls 11, 12, and over a driven lattice 26 to accumulate in sinuous form in the first of a series of compartments 2. Thence the fabric passes up through another eye, between the rolls 11, 12 again and over the lattice 26, through eadh compartment in succession. The liquid in each compartment passes through apertures 31, 32 to a space below the false bottom 3 whence it is withdrawn and passed on to the falling fabric by a pump 23. The liquid beneath each false bottom 3 may be heated by a steam pipe 5, covers 29 trapping some of the steam rising from the compartments. The lattice 26 may be replaced by another set of reciprocating eyes. According to the Provisional Specification, the false bottom may be perforated.
Patent GB-1036446-A (GB)
Title: Improvements in and relating to gas turbine vanes
IPC: F01D5/28
Filed: 1963-03-20
Abstract: A gas turbine nozzle vane may have an edge member of metal ceramic of any of the three following compositions:- 23% alumina, 77% chromium; 25% Cr, 60% W, 15% alumina; 59% Cr, 20% Mo, 19% alumina, 2% Ti.
Patent GB-1038105-A (GB)
Title: Wire and wire belts used in paper making machines and methods of making the same
IPC: C22F1/08
Filed: 1963-03-20
Abstract: Wire used for making a woven belt for a Fourdrinier paper making machine may comprise one of the following compositions, by weight- .Tin.7.2%-8.0% .Phosphorus.0.25%-0.35% .Iron, if present.0.05% max .Copper.Balance  .Zinc.14.0%-16.0% .Lead, if present.0.05% max .Iron & Nickel, if present.0.05% max .Copper.Balance .Phosphorus, if present.0.005% max  .Chromium.16.0%-18.0% .Nickel.10.0%-14.0% .Carbon.trace to 0.03% max .Molybdenum.2.00%-3.00% .Manganese.trace to 2.00% max .Silicon.trace to .100% max .Phosphorus, if present.0.045% max .Iron.Balance  .Chromium.16.0%-18.0% .Nickel.10.0%-14-0% .Carbon.trace to 0.03% max .Copper.2.0%-4.0% .Silicon.trace to 1.00% max .Manganese.trace to 2.00% max .Phosphorus, if present.0.045% max .Iron.Balance .Chromium.18.0%-20.0% .Nickel.8.0%-12.0% .Carbon.trace to 0.08% max .Manganese.trace to 2.00% max .Silicon.trace to 1.00% max .Phosphorus, if present.0.045% max .Sulphur, if present.0.030% max .Iron.Balance The wire is cold worked, annealed at a temperature in a specified range appropriate for each alloy and then further cold reduced.ALSO:In a method of making a wire belt, more particularly for a Fourdrinier paper making machine, the wires are subjected, prior to weaving, to a work hardening process comprising first a cold reduction to reduce the cross section by more than 80%, heat treatment to anneal completely and then a second cold reduction to reduce the cross section by between 8% and 30%.  The wire may be of brass, bronze or stainless steel of specified composition (see Division C7).
Patent GB-621721-A (GB)
Title: Improvements in and relating to electric induction apparatus
IPC: H01F38/30
Filed: 1947-04-25
Abstract: 621,721. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. April 25, 1947, No. 11146. Convention date, April 27, 1946. [Class 38 (ii)] A transformer or other induction apparatus comprises a core with a leg which carries a winding on a spool, a multiple strip conductor winding with stepped ends interfitting with complementary surfaces on terminal members, and a terminal board including a pivoted link for short-circuiting the winding on the spool, and a reversible cover enclosing the terminal board. The taped primary winding 2 comprises two S-bent strips 5, 6 with ends of unequal lengths forming stepped surfaces brazed to complementary stepped surfaces on terminals 7, 8. The middle of the S passes through the window of a rectangular core which is made from two U-shaped members consisting of flatwise-bent magnetic laminations, as described in Specification 621,679. Secondary windings 3, 4 are wound on spools 10, each consisting of two, similar, overlapping channel-shaped pieces of pressboard, which allow fitting to cores of different cross-sections. Insulation between windings and core is completed by flanges 12 and extensions 13 on the spools, and insulation 23 round the core yoke holding insulation in place under the yoke. The core is held in place by a binding strip 27 which extends round the core and is welded at each end 29 to a bracket 26, in which the bottom core yoke is located. Two compensating windings pass through a hole 16 in the core, one being a single shortcircuited turn 19 and the other a multi-turn winding 17 connected between the two secondary coils 3, 4. An insulating cover comprising two concave parts 31, 32 and a central band 35 is bolted to bracket 26 and held together at its upper end by conducting strips which connect the ends of the secondary windings with terminals in a chamber enclosed by a cover 42 which must be placed in one of two positions according as to whether or not the terminals are short-circuited by a swivelling link inside the chamber. The casing may be compound. filled.
Patent GB-1034637-A (GB)
Title: Improvements in or relating to d.c. voltage differential amplifier arrangements
IPC: H03F3/45
Filed: 1965-03-16
Abstract: 1,034,637. Transistor amplifying circuits. TELEFUNKEN PATENTVERWERTUNGSGESELLSCHAFT m.b.H. March 16, 1965 [March 19, 1964], No. 11166/65. Heading H3T. [Also in Division G4] A direct voltage differential amplifier comprises two 4-pole direct voltage amplifiers V1, V<SP>1</SP>, each with an output terminal earthed, two feedback resistances R 0 , R<SP>1</SP> 0  connected between the remaining output terminal 4, 4<SP>1</SP> of an amplifier and an input terminal 1, 1<SP>1</SP> thereof; input voltages U E1 , U E2  connected to the remaining input terminals 2, 2<SP>1</SP> of the amplifiers with further resistances R 1 , R<SP>1</SP> 1  respectively connected between the live output terminal 4<SP>1</SP> of amplifier V<SP>1</SP> and the feedback input terminal 1 of amplifier V, and between the feedback input terminal 1<SP>1</SP> of amplifier V' and earth; the output U A  between output terminal 4<SP>1</SP> and earth being equal to U E1 -U E2  for R 0  R 0 <SP>1</SP> = R 1  R 1 <SP>1</SP>. The amplifiers may be transistorized.
Patent GB-476537-A (GB)
Title: Improvements in ventilators
IPC: F24F7/02
Filed: 1937-04-20
Abstract: 476,537. Ventilators. HAMBLIN, C. M. April 20, 1937, No. 11245. [Class 137] A ventilator adapted for use in ships, and with . means for preventing a rush of water through the ventilating shaft 11, comprises a curved baffle 23 under which air passes to the shaft 11 which supports a casing 19 in which is a receptacle 15 havinga gasket 13 arranged tc contact with the edge 12 of the shaft wher the receptacle is filled with water entering with the air. The receptacle is sus. pended by springs 26 and is provided with a flexible pipe 2E for draining away water, but when the water enters in such quantities that the receptacle fills ir spite of the outlet 28, the shaft 11 is closed by lowering of the receptacle. Water collecting in a trough 20 between the casing 19 and the shaft 11 escapes through non-return valves 21. Manual means, including a handle 44, bevel gearing 41, 42, and a non-rotating screw on a shaft 30 secured to the receptacle, are provided to lower the receptacle and close the shaft when required, a flap valve 38 being opened. Remote control including the use of a solenoid may be employed to lower the receptacle. Specification 17230/99, [Class 113], is referred to.
Patent GB-475252-A (GB)
Title: Improvements in or relating to carbon anodes for intensive electric arcs
IPC: H05B31/10
Filed: 1937-04-20
Abstract: 475,252. Arc-lamp electrodes. SOC. LE CARBONE - LORRAINE. April 20, 1937, No. 11308. Convention date, May 18, 1936. Drawings to Specification. [Class 39 (i)] An anode carbon for producing an intensive arc with " Beck effect," has an outer shell of pure or nearly pure carbon, an intermediate core containing rare earth compounds, especially cerium fluoride, and an innermost core or cores containing materials for correcting the colour of the flame. The intermediate core in addition to rare-earth compounds may contain silicon, iron, cobalt, nickel, manganese, chromium, vanadium and titanium. The innermost core may contain alkaline earth compounds, or the mixture described in Specification 316,130, [Class 39 (i)]. Numerical examples are given. The inner core is contained in one or more cylindrical channels in the intermediate core, concentric therewith or otherwise, and may be formed by being injected as a paste into these channels and hardened by heat, the intermediate core being united to the outer shell by 'cement at the same time.