baber/WOPTO huggingface dataset:
Patent GB-1466364-A (GB)
Title: Production of metal strip from powder
IPC: B22F3/18
Filed: 1973-05-03
Abstract: 1466364 Production of sintered metal strip BRITISH STEEL CORP 3 May 1974 [3 May 1973 31 Jan 1974] 21103 and 04500/74 Heading C7D A continuous process of producing sintered metal strip in which the green strip is supported on a gas cushion as it is transported through the sintering furnace and the tensile stress applied to the strip during its passage through the furnace is substantially zero e.g. < 50 K neutons/sq. m. for ferritic stainless steel and < 70 K neutons/sq. m. for austenitic stainless steel. The gas cushion may be argon and/or nitrogen optionally with hydrogen and a hydrocarbon. The metal powder 1 is rolled at 2 and the green strip S passes via pinch rolls 4, floration table 5 where it is supported by gas from inlet 11, furnace 6 where it is supported by gas from nozzles 15 and pinch rolls 7 to coiler 8. The tensile stress in the green strip is controlled by regulating the speeds of rolls 4 and 7 via controller 10 in accordance with the measured shrinkage or stress in the strip passing through the furnace. The gas from nozzles 15 may be recirculated via a cooler, compressor and purifying chamber. The sintered strip may be hot-rolled by rolls 7 prior to coiling or cold-rolled after coiling and reheated in the sintering furnace or a separate furnace. The N2 or C content of the steel strip may be adjusted by using a gas cushion of argon and nitrogen or argon and methane e.g. with 25% N 2 -55% A - 20% H2 the N2 content of austenitic stainless steel strip is increased by 0À2%. The green strip may also be formed by depositing a slurry of metal powder and binder on a substrate then drying and rolling the deposited film.
Patent GB-198595-A (GB)
Title: Improvements in or relating to motor road vehicles
IPC: B60G11/38
Filed: 1922-08-02
Abstract: 198,595. Spencer, Moulton, & Co., Ltd., G., and Ward, E. C. Aug. 2, 1922. Spring shackles; india-rubber springs.-An auxiliary spring device for use in connection with the front end of a laminated bearing spring of a motor vehicle comprises an india-rubber spring resting on a bearing plate carried by a downwardly extending bolt and supporting a bearing plate on the vehicle frame, the bolt being carried by a member which slides in a vertical guide on the frame and is pivoted to the front end of the bearing spring. A similar device is used at the rear end of the bearing spring, except that the boltcarrying member slides and rocks on a pin projecting laterally from the frame. The rubber spring 10, Fig. 1, preferably comprising concentric rings of rubber moulded to metal plates with dividing plates between the layers of concentric rings, rests on a plate 9 carried by a bolt 8 secured on a piston-like member 3 sliding in a cylindrical guide 4, which is fixed on the frame 6 and is formed with an annular shoulder 12 against which rests a plate 11 bearing on the rubber spring. The front end of the spring 1 projects through an opening 16 in the guide 4 and member 3, and is connected to the member 3 by a pivot 2. Means are provided to prevent rotation of the member 3 in the guide 4, and a protective casing 13 for the rubber spring is formed on the lower end of the guide 4. At the rear end of the bearing spring, the boltcarrying member 23, Figs. 1 and 4, is forked at its upper end 22 to carry the pivot 21 for the end of the spring 1, and is slotted to slide on a member 32 pivoted on a pin 29 secured in a bracket 30 on the frame. The member 28, which rests on the rubber spring 26, is also pivoted on the pin 29. A supplementary rubber spring 38 arranged between the centre of the spring 1 and the frame is formed with an axial hole engaging pins 36, 42 mounted respectively on a plate 37 on the spring 1 and a bracket 40 on the frame. The portion 43 of the bracket 40 serves as a protective casing for the rubber spring.
Patent GB-1163672-A (GB)
Title: Coin Projecting Apparatus for an Automatic Amusement Machine.
IPC: G07F17/38
Filed: 1967-05-08
Abstract: 1,163,672. Amusement machine. ALFRED CROMPTON AMUSEMENT MACHINES Ltd and J. E. CROMPTON. 31 Jan., 1968 [8 May, 1967], No. 21196/67. Heading A6H. A coin-projecting apparatus for an automatic amusement machine comprises a rotatable drum having a number of projections standing out from its surface, a sloping way down which coins may slide and means to direct the coins so that they are struck by the projections. The projections are preferably pins driven radially into the drum surface and symmetrically arranged around the drum on the path of a single, helix. The coins are preferably directed by chutes on the. bottom of the sloping way one for each pin, the centre of each chute being, substantially in the plane in which one of the pins rotates. The coin projecter is preferably used in conjunction with the apparatus described and claimed in Specification 1163671.
Patent GB-177457-A (GB)
Title: Improvements in rigging for sailing ships
IPC: B63H9/06
Filed: 1921-08-10
Abstract: 177,457. Moraitis, C., and Amaxis, J. Aug. 10, 1921. Rigging. - Additional rigging is provided to facilitate the adjustment of fore and aft sails on to the lee side after the ship has gone about. Cables 38, 39 attached to the jib 15 are led in opposite directions around each of fixed pulleys 28 and then round pulleys 35, 36 attached to the main boom 24, to cleats 37 : fairlead pulleys 29, 30 conducting the cables to the boom. With this arrangement, the operation of the wind on the jib 15, when the ship goes about, exercises a pulling force on the cable 38 or 39 as the case may be, and produces a pulling force on the part of the cable associated with the boom 24 and throws it over to a corresponding extent. The invention may be applied to ships with two or more masts.
Patent GB-589613-A (GB)
Title: Improvements relating to electrically controlled governors for turbo-alternators andlike machinery
IPC: H02P9/00
Filed: 1944-10-31
Abstract: 589,613. Automatic control systems. SYKES, W. H. Oct. 31, 1944, No. 21291. [Class 38 (iv)] [Also in Group XXIX] Frequency; phase displacement.- In an automatic frequency control system for an alternator driven by a prime mover, the voltage applied to an electric motor operating the control valve of the prime mover contains a component proportional to the difference between the alternator frequency and a standard frequency and a component proportional to the rate of change of that frequency difference. In Fig. 2, the armature of a D.C. motor 6 adjusting the position of the steam valve of a turbine driving an alternator, to be synchronized in frequency and phase with a standard A.C. source, is supplied from a D.C. generator 11 driven by a constant speed induction motor 13 and the voltage supplied to the generator field 12 has components proportional to (a) the frequency error, (b) the rate of change of frequency error and (c) the integrated frequency error. Identical phase discriminating circuits 15 and 16, preferably temperature-controlled, include resonant circuits tuned to a frequency approximately equal to the standard frequency, and are respectively supplied from the alternator output at 17 and the standard source at 18 so that each discriminator gives an output dependent on the difference between its supply frequency and its resonant frequency and the resultant output which appears as a D.C. voltage across condenser 25 corresponds in magnitude and sense to the frequency error. This voltage is applied (a) through a potential divider 48, 49 to the grid circuit of a tetrode 21, the anode current of which energizes a section 12b of the generator field ; (b) through a potentiometer' 31 and a differentiating circuit 28, 29, having a timeconstant much smaller than the time of variations of input voltage, to the grid circuit of a pentode amplifier 33 coupled to a tetrode 26, the anode current of which energizes a section 12a of the generator field; (c) through a potentiometer 38 and an integrating circuit 37, 39, delayed by a pentode 36 so as to have a time-constant much greater than the time of variations of input voltage, to the grid circuit of the tetrode 26. The standing currents of valves 21 and 26 are balanced and the energization of the generator field is zero unless the algebraic sum of components (a), (b), (c) above has a value other than zero. The relative magnitudes of the components are adjustable by potentiometers 31 and 38 to suit the output characteristic of the system. Mathematical analysis and typical component values are given. The Provisional Specification describes an arrangement in which each discriminator comprises two tuned circuits, one resonant above and the other below the standard frequency.
Patent GB-1052884-A (GB)
Title: Extrusion process and apparatus for obtaining internally reinforced blown tubular films of plastics
IPC: B29C48/153
Filed: 1963-05-28
Abstract: 1,052,884. Laminates and laminating. CELENE S.p.A. May 28, 1963 [May 29, 1962], No. 21294/63. Heading B5N. [Also in Division F2] A tubular film 1 of plastic material is extruded from an annular die 3 of an extruder 2 and whilst advancing is inflated with air and covered with a reinforcement of yarn or thread 7 unwound from spools 5, 5<SP>1</SP> located on rotary annular platforms 6, 6<SP>1</SP>, this reinforcement being covered by a second tubular film extruded from an annular die 12 of an extruder 11. A hollow mandrel 8, Fig. 2 (not shown), is supported by the die 3 within the tubular film 1 at the location where the reinforcement 7 is applied and cooling liquid is circulated through the mandrel. A similar arrangement may be provided at the location of the annular die 12. The finished tube after prior flattening between rolls 22, Fig. 1 (not shown), is wound on a bobbin.
Patent GB-190196-A (GB)
Title: Improvements in automatic compass control and transmission
IPC: G01C17/36
Filed: 1921-08-11
Abstract: 190,196. Elmslie, A. N. W. Aug. 11, 1921. Steering automatically. -A ship, or motor boat, has its steering-gear actuated by two compressed air engines, the valves of which are operated by electromagnets included in two circuits controlled by a magnetic or gyroscopic compass through a divided contact ring or series of contacts so as to correct automatically, the contact rings or series of contacts being adjustable by the pilot to set the course. Fig. 1 shows an aircraft rudder o aetuated by two cylinders k, k<1> supplied with compressed air through valves j, j<1> which are adapted to be opened by multiplying-gear g, g<1> connected to the armatures of electromagnets h, h<1>. A magnetic-needle a, having two brushes d, d<1>, moves over a ring divided into three segments c<1>, c<2>, c<3>, with a small insulating section e on which the brush d<1> normally rests. Any deviation of the needle completes one or other of the two circuits shown and causes an appropriate movement of the rudder. A modification is described, in which the ring has only two segments, the current for the two circuits passing through the pivot of the needle from separate armatures mounted on the shaft of a single wind-driven dynamo.
Patent GB-617525-A (GB)
Title: Improvements in or relating to rotary printing presses
IPC: B41F27/10
Filed: 1946-07-17
Abstract: 617,525. Printing - surfaces. GOSS PRINTING PRESS CO., Ltd. July 17, 1946, No. 21434. Convention date, July 28, 1945. [Class 100 (ii)] A plate cylinder for a rotary printing press having resilient devices engaging recesses adjacent one edge of the plate, and a torsionally operated shaft carrying a number of hooks engaging recesses adjacent the other edge of the plate and acting to tension the plate against the resilient devices, is provided with stops in the path of one or more of the hooks against which the shaft is progressively stressed. As shown, each semi-cylindrical plate 30 is at one edge gripped by a series of spring tensioned claws 36. Gripping tension to the other edge is imparted from a series of hooks 55, 58 on a torsion shaft 40 extending from the cylinder into a head 90 journalled in a bracket 52. The hooks 58, 55 are positioned helically on the shaft 40 and extend through openings 97 in the cylinder, the bottom walls 96 of these openings forming positive stops for the hooks so that upon torsional strain being imparted to the shaft the hooks 58, 55 are arrested successively as they engage their stops and are brought into alignment. Shaft 40 is rotated by a winch engaging a squared hole 62 in a shaft 63 of a worm 60 turning a worm-wheel 61 keyed to a shaft 74 having an eccentric 80 oscillating the head 90 through an adjustable shackle 83. A shoulder 105 on the head 90 strikes a stop 107 to prevent overstressing the shaft and the eccentric is at dead centre when the hooks 58, 55 engage these stops . When the shaft 40 is turned to release the plate, the latter is lifted from the cylinder by hooked ends 113 of lifters 111, Fig. 9, which engage the ends of the plates 30. Specification 583,771 is referred to.
Patent GB-532332-A (GB)
Title: Improvements in or relating to alkyd resins and coating compositions prepared therefrom
IPC: C08G63/46
Filed: 1939-07-24
Abstract: 532,332. Synthetic resin compositions containing wetting and luminescent agent. INTERCHEMICAL CORPORATION. July 24, 1939, Nos. 21470 and 21471. Convention dates, April 12 and July 11. [Class 2 (iii)] Resins are prepared by heating together a polyhydric alcohol, e.g. glycol or glycerol, phthalic acid, and one or more of lauric, myristic and palmitic acids substantially free from unsaturated fatty acid compounds and containing less than 10 per cent. of other saturated acids. A few per cent. of phthalic acid may be replaced by other dibasic acids. The fatty acid may constitute 20 to 60 per cent. of the reaction mix. The products are soluble in hydrocarbons, e.g. toluene, xylene, solvent naphtha, or hydrogenated petroleum naphtha, to produce coating compositions, which may be pigmented, e.g. with titanium dioxide, and may be blended with cellulosic lacquers. In examples : glycerol, phthalic anhydride, and lauric, myristic, or palmitic acids, or coconut oil fatty acids from which unsaturated bodies have been removed, are heated in an atmosphere of carbon dioxide ; or glycerol, phthalic anhydride fumaric acid, and lauric acid are similarly reacted.
Patent GB-948335-A (GB)
Title: Improvements relating to low-frequency electric supply apparatus
Inventor: HIGGINS LEONARD JAMES
IPC: H02M5/00
Filed: 1959-06-23
Abstract: 948,335. Frequency changing; rectifying; control of A.C. motors. BRUCE PEEBLES & CO. Ltd. June 22, 1960 [June 23, 1959], No. 21537/59. Headings H2F and H2J. An arrangement for supplying a load such as an electric motor with low-frequency alternating or pulsating current from a source of higher frequency comprises one or more magnetic amplifiers, each having a control winding supplied from a rotary machine constituting a source of current alternating or pulsating at the lower frequency, rectifiers being connected in the load circuit. Magnetic amplifiers 11 are supplied from three-phase source 12 and feed load 13 through rectifiers 14. Low power, lowfrequency generator 15 (e.g. a rotating toroidal potentiometer or a synchro-differential transformer) supplies the control windings of amplifiers 11. The neutral point of the load is connected to the neutral point of the supply at 24 to provide a return path for the D.C. component of the output current. In a modification (Fig. 3, not shown), two amplifiers are connected in push-pull to a single-phase source and supply the two halves of a split load through rectifiers. In a third embodiment (Fig. 5, not shown), the control current is full-wave rectified and the output from a single amplifier is fed to the load through a change-over switch synchronized with the low-frequency generator so that it reverses alternate half-cycles of the output. The change-over switch may consist of a commutator 40 (Fig. 7), having two segments.
Patent GB-1505527-A (GB)
Title: Smoke density measuring apparatus
IPC: G01N15/06
Filed: 1975-05-20
Abstract: 1505527 Testing flue gas SNAMPROGETTI SpA 20 May 1975 [21 May 1974] 21646/75 Heading G1B [Also in Division F1]  The smoke density of a flue gas is determined by a method comprising sampling the flue gas as by means of probe 4, cooling the flue gas sample by heat exchange with a cooling fluid in a jacket comprising fluid inlet and outlet 5, 6, passing the cooled flue gas sample through a filtering device 7 and comparing the spot produced on a filter means 8 in the filtering device with standard soot spots representing flue gas having a known smoke density. In the device shown, the filter means 8 is of filter paper and the cooled gases also pass through a condenser 9 and a drying chamber 10 containing silica gel for trapping acid substances dissolved in condensate. Flue gases are drawn into sampling probe 4 by sunction produced on operation of a double headed piston 12, Fig. 2 (not shown), the gases being exhausted from the suction device on each compression stroke through electric valve 14.
Patent GB-939971-A (GB)
Title: Improvements in or relating to printing numbering devices
IPC: B41K3/10
Filed: 1961-06-15
Abstract: 939,971. Printing numbering devices. G. RE BARATELLI. June 15, 1961 [June 15, 1960], No. 21672/61. Class 100 (2). A progressively and regressively operable numbering device, in Fig. 1, comprises a number of numerator discs 6, rotatably mounted on a shaft 2, characterized in that all but an end one of the discs, have a radial recess 6d, Fig. 14, housing a radially movable block 12, bearing a zero on the outer surface 12a, the inner surface 12b, engaging either the surface of the shaft or one of depressions 2z on the shaft to permit a retraction of the blocks 12 to allow the suppression of the first insignificant zeros. In the numbering device a spring-urged, reciprocating plunger 15, Fig. 3, causes one of the pivotally mounted pawls 18, 19, to engage a sprocket 5 and impart a partial rotation to a spindle 3, Fig. 1, carrying five sprockets 4 co-operating with each of the numerator discs, the end sprocket being fixed on the spindle at 4e, to effect partial rotation of the corresponding end one of the discs and to effect partial rotation of each successive disc upon a predetermined number of partial rotations of the disc preceding it. A control disc 7, fixedly mounted on the shaft 2 by a screw 7a, and having inscribed on its periphery numerals 0 to 5, is provided for selective rotation of the shaft to effect the suppression of the first insignificant zeros. The progressive or regressive operation is determined by the pair of pawls 18, 19, selectively engageable with the sprocket 5 by a cam 14, Figs. 1 and 3, the operating surfaces 14g, 14h of which can be brought into contact with the pawls 18, 19, respectively, on angular displacement of a hole 14f, in the cam flange 14<SP>II</SP>, through a slot h provided in the housing 1 of the device.
Patent GB-446260-A (GB)
Title: Process and apparatus for the dyeing or analogous treatment of textile fibres in the preparatory stages of spinning
IPC: D06B5/16
Filed: 1934-07-25
Abstract: <PICT:0446260/IV/1> Slivers, which may have been previously coiled in ordinary coiling, are coiled in a coiler can in such a manner as to leave a clear central bore.  They are then transferred in succession to a perforated treatment tube along which they fall by gravity and are compressed together, followed by fluid treatment through the mass under different pressure and any other desired treatment when they are removed separately from the tube for further spinning preparation.  The clear central bore may be effected by a usual coiler head with an enlarged gear-wheel so that the circular traverse of the trumpet of the coil head is increased and the bore thus formed may be kept open by a central tube or rod 7 in the coiler can 5 which is fitted at its lower end upon a central flange 8 which is a loose fit in the can 5 and removable therefrom with the tube or rod.  If desired, this central rod or tube may be omitted.  A slidable disc 9 in the can 5 has attached to it an annular rubber disc 10 the inner edge of which makes frictional sliding contact with the tube 7 under the accumulating weight of the coiled sliver.  After coiling, the knob 7 which forms a smooth closure for the upper end of the tube 7 and disc 9 are removed from the can and the sliver and tube 7 lifted out and the slivers are allowed to fall along a perforated treatment tube whereon they are compressed and through which the treating liquid is passed by differential pressure as, for example, in a machine as described in Specification 190,760, [Class 15 (i)].  A sheet of flexible and p  permeable material such as stockinette may be placed around the slivers on the treatment tube.  Ultimate evenness of compression of the slivers may be ensured by the use of a perforated cylindrical metal cage of the original or less diameter than the original diameter of the sliver mass placed over the treatment tube.  Specification 246,199, [Class 15 (i)], also is referred to.
Patent GB-745256-A (GB)
Title: Improvements in or relating to the pumping of liquefied gases and to apparatus therefor
Inventor: ANDERSON CARL ROBERT
IPC: F17C5/02
Filed: 1953-08-07
Abstract: 745,256. Making and pumping liquified gases. AIR PRODUCTS, Inc. Aug. 7, 1953, No. 21814/53. Classes 8(2) and 102(1). In pumping a low boiling gas in the liquid phase, the suction line 29 is fitted with a cooler 24 and the pump cylinder 32 is cooled by a cooler 21 each supplied with separate cold fluid streams having a temperature below that of the boiling point of the liquid gas at the minimum inlet pressure of the pump so as to prevent gas lock in the pump. Fig. 1 shows a fractionating plant for producing oxygen in which compressed air is supplied at 16 to a heat interchanger A and passes to a boiling coil 15 in a fractionating column B and then to the cooler 21 through an expansion valve 20; the cooler 21 is connected to the column B by pipe 22. The nitrogen is conducted from the column B through pipe 23 to the cooler 24 and then passes through pipe 26 to the interchanger A to leave by outlet 27. The oxygen 18 passes from the column B through the pipe 28, cooler 24 and is pumped through pipe 41, interchanger A to the collecting space 43. Fig. 2 shows a fractionating column B having a high pressure section 47 and a lowpressure section 48. The boiling coil 54 is connected through an expansion valve 57 to an intermediate point in the section 47 and the nitrogen collected in pool 59 passes through the expansion valve 61 to the top of the section 48. The crude oxygen 55 in the section 47 passes through cooler 63, expansion valve 66 to the cooler 67 surrounding the pump cylinder 79 and then through pipe 68 to an intermediate point in the section 48. Nitrogen from the section 48 passes through the pipe 69 -to the cooler 70, cooler 63 and interchanger A. The liquid oxygen 58 passes through pipe 75 to the cooler 70 and the pump cylinder 79. The system may be used to treat natural gases to remove liquid petroleum gas fractions. Specification 573,383 is referred to.