baber/WOPTO huggingface dataset:
Patent GB-1291030-A (GB)
Title: Improvements in methods of supercharging a diesel engine, in supercharged diesel engines, and in supercharging units for diesel engines
IPC: F02B37/16
Filed: 1971-04-30
Abstract: 1291030 Starting diesel engines FRANCE ARMED FORCES MINISTER OF 30 April 1971 [5 May 1970] 12312/71 Headings F1B and F1G Exhaust turbo-supercharged Diesel engine having a compression ratio of less than 12 has a combustion chamber 3 external to the engine 1, which receives part of the fresh air from the compressor 2, and supplies combustion gas to the turbine 4, additionally to that received from the engine, independent means 6 are provided to bring the compressor-turbine unit to selfmaintaining operation and the minimum speed of the unit is sufficient to create in the intake pipe of the engine, conditions of temperature and pressure which permit its starting and slow speed operation. Combustion chamber 3 receives a quantity of fuel controlled by a device 7 e.g. an electric pump, the delivery rate of which is proportional to its supply voltage. In a modification, Fig. 2 (not shown) all or part of the exhaust gas is fed to the combustion chamber and mixes with the air. In an engine having two-stage supercharging, the air for the combustion chamber may be taken from the outlet of either the L.P. or H.P. stages and mixed with all or part of the exhaust gases from the engine. In an engine having, for example, a compression ratio of 8, the temperature in the intake pipe must be 80C. to obtain auto-ignition at the end of the compression stroke. If the ambient temperature is 0C., then the temperature ratio in the compressor must be 1À3, requiring a pressure ratio of 2. The speed of the supercharging unit is determined by the necessity to achieve this pressure ratio.
Patent GB-1205113-A (GB)
Title: Improvements in fast-annealing malleable cast iron
IPC: C22C37/10
Filed: 1968-03-14
Abstract: 1,205,113. Malleable cast iron manufacture. REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT. March 14, 1968 [April 5, 1967], No. 12338/68. Headings C7A and C7D. Pearlitic and ferritic white malleable cast iron, free of primary graphite and containing cementite when cast, is manufactured by casting e.g. at 1420-1430C. a melt of composition: 2À3- 2À7% C, 1À9-2À3% Si, less than 0À4% Mn, max. 0À025 S, max. 0À05% P, and balance Fe, and adding to the casting ladle 0À1-0À3% (by weight of the melt) of mischmetal (e.g. 50% Ce, 40% La, 7% Fe, 3% other lanthanides; or 50% Ce, 25% La, 14% Nd, 6% Pr, 5% other lanthanides), annealing between 900 and 1, 50 C. for up to 2 hours to decompose cementite, cooling in still air to obtain pearlite and heating at 700 C for 4 hours to obtain ferrite.
Patent GB-1477668-A (GB)
Title: Control system for electric toasters
IPC: A61M1/18
Filed: 1976-03-26
Abstract: 1477668 Control systems for electric toasters SEB SA 26 March 1976 [18 April 1975] 12342/76 Heading H2H An electric toaster comprises a timing device including a variable resistor 16 and a capacitor 18, the charge on the capacitor controlling the energization of a relay 11 by way of a thyristor 9 and its trigger circuit which includes transistors 25, 26. Energization of the toaster heater element 1 is effected by depression of the toast carriage 30 which closes contacts 12, 13. Potential is applied to line 7 by way of a diode 6 and a voltage dropping resistor 4 thereby to charge a capacitor 14 and the capacitor 18 of the timing device, the charging rate of the capacitor 18 being determined by the setting of the variable resistor 16. When the capacitor 18 acquires a predetermined charge, the charge thereof, amplified by a transistor 23, is discharged into the gate of the thyristor 9 by way of the transistors 25, 26 which are completely saturated. Conduction of the thyristor 9 allows the capacitor 14 to discharge through the relay 11, energization of which causes the contacts 12, 13 to open to de-energize the heater 1 and also causes toast to be ejected from the toaster. The resistor 4 protects the relay 11 from damage should malfunction of the toast carriage 30 occur, a thermistor 15 compensates the timing device for changes in ambient temperature, the variable resistor 16 sets the toasting period and the initial adjustment to the trip threshold of the toaster is set by means of a potentiometer 27.
Patent GB-654276-A (GB)
Title: Chemically resistant linings and joints in chemical plant
Inventor: EARP FRANCIS KENNETH
IPC: C08G16/02
Filed: 1948-05-05
Abstract: In constructing chemical plant, chemically resistant joints or linings are produced by application of a spreadable mixture of a cashew nut shell-liquid resin, a chemically resistant filler, an aldehyde or aldehyde-yielding substance and a volatile organic solvent, the mixture then being allowed to set.  Suitable fillers are carbon, graphite, silica, barytes, fluorspar or asbestos, preferably with a particle size of 30-160 mesh.  Suitable solvents are ethyl alcohol, benzene, toluene, xylene, and acetone. Nor more than 10 per cent of solvent based on the weight of resin is employed.  Aldehydes mentioned are formaldehyde, paraformaldehyde, acetaldehyde, benzaldehyde, furfural or hexamethylenetetramine.  Resins mentioned are those sold under the names "Epok" (Registered Trade Mark) and Cardolite.  An alkaline catalyst, e.g. caustic soda may be included in the composition. Specifications 654,275 and 654,277 are referred to.
Patent GB-116614-A (GB)
Title: Improvements in and relating to Safety Razors.
Inventor: MORGAN JOHN HENRY
IPC: B26B21/10
Filed: 1917-08-29
Abstract: 116,614. Morgan, J. H. Aug. 29, 1917. Razors, safety. The blade of a safety razor is held on studs projecting from a guard portion b of a handle-member a pivoted at a<2> to another handle-member a<1>. The member a<1> has keyhole slots adapted to receive the studs and to engage at their narrow parts with cut-away side parts of the studs, the blade being thus clamped with its edges parallel to the line of the compound handle. In a modification, the studs are replaced by bentover lugs d, d', which may form parts of a metal strip a<4> riveted to the outside of and passing through the guard b; these lugs enter openings e, e<1>, of the shape shown, formed in the member a<1>, and they engage the outer surface of that member, and may be inclined so as to give a wedgelike action. In another modification, the slots e<1> are rectangular, and the member a<1> is, after being swung into position, moved slightly in the direction of its length, to complete the engagement with the lugs. The strip a<4> may be bowed outwards to facilitate manipulation; or a mere stud may be provided for this purpose. Cut-away parts a<5> receive one of the fingers during shaving. An additional projection on the member a may engage a perforation in the member a<1>. Bent parts 13 assist the user in gripping the razor. The handle-members may, at the blade end, be of curved form in cross-section.
Patent GB-749452-A (GB)
Title: Improvements in or relating to storage battery charging devices
Inventor: ARNOT ALFRED ERWIN REGINALD
IPC: H01H71/20
Filed: 1953-05-05
Abstract: 749,452. Charging batteries. SHARP, J. R., and KAYE, E. May 5, 1954 [May 5, 1953], No. 12438/53. Class 38 (4). [Also in Group XXXVII] A battery charging control device for terminating flow of charging current upon the battery attaining a predetermined voltage corresponding to full charge, comprises a microswitch 36 closed by manual operation of a spring-loaded push-button 33 when charging is to commence and retained in the closed position by a pawl 30 engaging a normally fixed ratchet wheel 27 but which is released to allow the switch to open upon melting of readily fusible metal 25 surrounding a square shaft 26 fixed to the ratchet wheel, melting being caused by the heat developed in a non-linear resistor 20 connected across the battery terminals. The resistor 20 may be in series with an external variable resistor determining the time required for fusion to occur after the attainment of the predetermined voltage. Current is conveyed to the resistor 20 through conductive blocks 16, 17 between which the resistor is clamped by an insulated screw 22. Block 16 has a bore 24 which receives the end of the square shaft 26 and the fusible metal 25. The whole is contained within a moulded casing 11 provided with a thick internal lagging of cork 15, 18, 19. Instead of the readily fusible metal 25, other thermally responsive means, such as a bimetallic strip or a normally magnetic element which becomes non-magnetic when heated, may be employed.
Patent GB-167293-A (GB)
Title: Improvements in or relating to cotton gins
IPC: D01B1/06
Filed: 1920-05-05
Abstract: 167,293. Middleton, B. M. May 5, 1920. Gins.-In a double-roller Macarthy gin the gears for transmitting the motion from the driving shaft to the roller shafts, the flexible shafts connected to the rollers, and the oscillating lever, are all enclosed in a single casing provided with shutters which cover the slots or openings in the casing through which the flexible shafts and oscillating lever pass. The main shaft 2 is supported in ball bearings in the casing 1, the fast and loose pulleys being carried by a projecting portion. One roller shaft is driven through gearing 5, 6, 7, 8 and a flexible shaft 9. The end of the shaft 9 projects through a slot 18 in the casing. A shutter 19 wording in guides 20 keeps the slot covered. The other roller shaft is driven from the gear 6 through gears 12, 13, 14 and a flexible shaft 16. A slot and shutter is provided for this shaft. The oscillating lever 26 is operated from a crank 21 on the main shaft and carries a plate 27 adjustably mounted upon it. The plate 27 is provided with a segmental member 30 working in the opening in the casing through which the lever projects and rocking with the lever.
Patent GB-1176883-A (GB)
Title: Intake Air Preheater for an Internal Combustion Engine
IPC: F23Q7/00
Filed: 1967-03-17
Abstract: 1,176,883. Heating charge. FORD MOTOR CO. Ltd. March 17, 1967 [June 8, 1966], No.12519/67. Heading F1B. A combustion air pre-heater 20 mounted in the inlet manifold 14 comprises a fuel inlet 42 from which fuel flows via a tube 32 into a combustion space 25, the fuel flow being controlled by a valve 46 operated through a rod 60 by a bimetallic element 58. At cold starting the element 58 opens valve 46 and the fuel in chamber 25 is ignited by an electric heating element 52, the hot gases escaping through holes 30 topre-heat the air in manifold 14 which is supplied by a turbocompressor (12, Fig. 1 not shown). The tube 32 is insulated by insulator 24 and carries the current from terminal 50 to the heating element 52 mounted thereon.
Patent GB-419448-A (GB)
Title: Improvements relating to operating mechanism for windscreens of motor vehicles
IPC: B60J1/04
Filed: 1933-05-01
Abstract: 419,448. Toothed gearing. PERFECTA MOTOR EQUIPMENTS, Ltd., and PINSON, V. H., Dartmouth Street, Birming- ham. May 1, 1933, No. 12561. [Class 80 (i).] A pivoted windscreen regulator comprising a knuckle-jointed chain stiff in one direction operated by a worm has teeth b formed on the side of the chain which is outermost when passing through the guide j. The links may be of sheet metal the outer ones having end projections c<3> forming knuckles and teeth c<2>, while the inner ones have teeth d<2>, Figs. 5 and 6. A spring j<6> may be provided on the inner side of the guide and rollers on the outer side. Specifications 254/94, [Class 80], and 376,452, [Group X], are referred to.
Patent GB-455655-A (GB)
Title: Improvements in or relating to the production of plasticised cellulose ether compositions
IPC: C08L1/28
Filed: 1935-04-26
Abstract: Granular cellulose ether compositions particularly suitable for moulding purposes are obtained by kneading, in the absence of any substantial proportion of volatile solvent, a mixture comprising a cellulose ether and a plasticizer under positive pressure for a time sufficient only to produce a homogeneous, cellulous, friable mass which is then broken down to granular form.  Dyes or pigments may be incorporated with the compositions. In the case of cellulose ethers of high thermoplasticity, the plasticizer may be omitted.  The cellulose ether may be ethyl, benzyl, allyl, or crotonyl cellulose, Kneading may be carried out in a screw stuffer or masticator mixer provided with a pressure ram and having a very small clearance between the mixing blades and the adjacent wall.  The temperature may be allowed to rise during the kneading to 85 or 105 DEG  C., and the time required may be as low as 1--5 minutes.  The friable mass may be ground without first being cooled, and a hammer-mill, rotary mill, or three-roll mill may be used.  The granular product may be further treated to processes of rolling, cake-pressing, extrusion, and dopemaking. In an example, ethyl cellulose in finely divided form is mixed in a light powder mixer with a plasticizer and a pigment and the mixture is introduced into a masticator mixer and kneaded under pressure for 2 minutes, the temperature rising to 76 DEG  C.  The friable mass obtained is broken down in a rotary grinder.  The plasticizer may be triphenyl or cresyl phosphate, camphor, naphthalene, acetanilide, ethyl lactate, amyl butyrate, triacetine, tri-ethylene glycol, ethylene glycol phenyl ether, chlor - naphthalene, butyl salicylate, ethyl butyrate, butyl benzoate, phenyl phthalate, ethylaceto acetate, cyclohexanol, acetophenone, butyl tartrate, ethyl succinate, diphenyl ether, tri-m-oxyphenyl phosphate, diphenyl ethane, diphenylol cyclohexane, benzene methyl sulphonamide, methyl acetanilide, di - xylyl ethane, ethyl acetanilide, benzyl cresyl ether, diamyl phthalate, dibutyl phthalate, thiotriphenyl phosphate, dicyclo hexyl phthalate, diamyl phthalate, or dibutyl phthalate.  As pigment or filler there may be used titanium oxide, chromium oxide, alizarine purple lake B, talc, clay, wood flour, cotton flock, asbestos, bronze powder, and pearl essence.  Fire retardants such as magnesium carbonate, and gypsum, antacids such as urea, hygroscopic bodies such as zinc chloride, mould lubricants such as aluminium palmitate, calcium stearate, and stearic acid, and other ingredients such as carnauba wax, chinawood oil, ester gum, gum acaroides, cellulose esters, casein, rubber, and synthetic resins, may also be added.
Patent GB-328434-A (GB)
Title: Process and apparatus for cooling or freezing cream and other liquids
IPC: A23G9/20
Filed: 1929-04-23
Abstract: 328,434. Vogt, C. W. April 23, 1929. Fluid - actuated valves. - The valve 27 through which steam &c. is admitted to a spray-freezing chamber 10 is automatically opened at intervals by an arm 32, Fig. 2, abutting against a spring-loaded collar 30 on the valve spindle and actuated through pin-and-slot mechanism from a crank 35 on a shaft 36 to which is secured a vane which oscillates in a chamber 41. The oscillation of the vane is effected through mechanism 43 by which the space on either side of the vane is alternately connected through a passage 39 in the cover with the vessel 10, which contains relatively high-pressure gas evaporated from the solid carbon dioxide 12, and through an exhaust passage 37 with the atmosphere.
Patent GB-377964-A (GB)
Title: Improvements in or relating to paper slitting machines and the like
IPC: B26D3/02
Filed: 1931-04-30
Abstract: 377,964. Feeding sheets ; delivery apparatus. NATIONAL CASH REGISTER CO., Ltd., 225, Tottenham Court Road, London.-(National Cash Register Co. ; Dayton, Ohio, U.S.A.) April 30, 1931, No. 12729. [Class 100 (i).] A machine for feeding, slitting, and stacking paper or like material, which is especially applicable to dividing multiple printed cheques such as dividend or pay cheques, and stacking the individual cheques in sequential order, comprises a pusher feed bar 44 which advances the multiple sheets over a feed table 38 to co-operating feed rollers and cutter discs 37 mounted on geared shafts 34, 35 driven by a motor. The cut cheques are stacked in a drawer 81, into which the outer cheque passes as it leaves the cutters. The remaining cheques pass into a multiple receiver formed of a series of inclined pockets 80 from which they are delivered by means of sliding pushers 86, 87 operated by a hand-lever 91 which operates by a pin-and-slot connection a lever 96 also having a pin-and-slot connection with a slide 85 in which the pushers 86, 87 are mounted. The edges of the cheques overlap the pockets 80, and the pushers 86, 87, which are guided by slots 88, 90, push the extreme left-hand cheque, Fig. 6, on to the top of the next cheque, and then these two are pushed on to the top of the third cheque, until finally the associated cheques are delivered into the drawer 81. A retaining bail 105 is associated with the pushers 86, 87, and cushioning-springs 108 are provided for the slide 85. An adjustable angular flange 103 and a fixed flange 104 are disposed on opposite sides of the pockets 80, and assist the alignment of the cheques. The cutting- knives are protected by a guard 64 which also guides the cut sheets to the stacker. The opening under the guard 64 is normally closed by a guard rail 52 which acts also as a sheet-registering device, and is depressed by cams on the feed-slide 42 to permit the advance of the multi-cheque. The slide 42 is advanced by a handle 79, and returns under the action of springs 62. The slide is guided by slots in the feed table 38 which engages projections on the slide. Side guides 70, 71 adjustable by screws engage the lateral edges of the cheques. Specifications 199,046, [Class 100 (iv), Typewriters &c.], and 351,064 are referred to.
Patent GB-434088-A (GB)
Title: Improvements in or relating to endless track vehicles
IPC: B62D55/10
Filed: 1935-04-29
Abstract: 434,088. Endless - track vehicles. LANZ AKT.-GES., H., 53, Lindenhofstrasse, Mannheim, Germany. April 29, 1935, No. 12803. Convention date, July 3, 1934. [Class 79 (i)] The guide wheel or idler pulley n of an endless-track vehicle is carried by a rocker arm comprising two members, i.e. a member b pivoted at f on the truck frame g and formed integral with a sleeve d on which the wheel is mounted, and a member a pivoted at e and formed integral with a bolt c passing through the sleeve. The pivots e, f are co-axial, and the bolt c secures the two members a, b together.
Patent GB-540634-A (GB)
Title: Improvements in and relating to conveyors for crates and other articles
IPC: B65G47/68
Filed: 1940-08-09
Abstract: 540,634. Conveyers. PEARCE, L. D., and GRAHAM ENOCK MANUFACTURING CO., Ltd. Aug. 9, 1940, No. 12812. [Class 78 (i)] In a system in which two or more conveyers 1, 2 merge in a single conveyer 3, the passage of one article along one of the conveyers 1, 2 obstructs the passage of articles along other conveyers. Articles such as milk bottle crates are guided between side rails 4 and rest upon chain conveyers having a smooth upper surface. The control mechanism A is located between side guards 4 of two merging conveyers. When a crate approaches the junction, it engages and moves the corresponding arm 8 or 9, whereby the other arm is locked to prevent the passage of another crate along the corresponding conveyer until the first crate is sufficiently ahead. Each arm is mounted on a vertical spindle 10, 11, having cam surfaces with recesses 24. 25 co-operating with a locking bolt 21 adapted to slide lengthwise. After a crate has passed, springs 17, 18 return the arm which has been moved, and the corresponding cam surface returns the bolt 21 to its central position so that either arm is free to be moved by another crate.
Patent GB-920292-A (GB)
Title: Improvements in and relating to magnetic circuits
IPC: H01H51/22
Filed: 1960-04-11
Abstract: 920,292. Electromagnetic relays. R. E. H. CARPENTER. April 6, 1961 [April 11, 1960], No. 12886/60. Class 38 (5). In a magnetic circuit including a winding on a ferromagnetic bobbin the end plates of the bobbin have outer surfaces of part-spherical form which engage corresponding surfaces of polepieces of a relay. The polarized relay shown has its winding on a ferromagnetic bobbin (Fig. 4) comprising a stem 23 and cheeks 24, 25 having part-spherical outer surfaces which engage co-operating recesses in limbs 13, 17 of respective ferromagnetic polar brackets 12, 16. The other limbs 14, 18 of the brackets 12, 16 are located and secured in spaced relation by screws 19 and non-magnetic spacers 20, 21. The screws 19 pass through elongated holes in the limb 18 so that during assembly the limbs 13, 17 can be pressed against the cheeks whilst the screws 19 are tightened ensuring good magnetic joints irrespective of manufacturing differences in the brackets or bobbin. The radius lines 27, 28 of the cheek faces extend from different centres allowing offset of the bobbin due to manufacturing tolerances. A flat armature 33, 34, 35 between opposed faces of the polar brackets 12, 16 has a permanent magnet 33 and two polepieces 34, 35. The armature is pivoted on its end shafts 38, 39 which pass through the spacers 20, 21. A moving changeover contact is carried on an arm 47 secured to an extension 42 of the shaft 38. Specifications 809,441 and 920,293 are referred to.
Patent GB-1032115-A (GB)
Title: Improvements in or relating to electrical switching devices
Inventor: WRIGHT DENIS
IPC: G07C9/00
Filed: 1962-04-04
Abstract: 1,032,115. Releasable fastenings. AUTOMATIC TELEPHONE & ELECTRIC CO. March 6, 1963 [April 4, 1962], No. 12972/62. Heading E2A. Electrical contacts SA, SB, SC, SD having springs such as OS mounting magnets such as MA are operated by a key KT (Fig. 2, not shown) which has inserts FA, FB, FC, FD of a magnetic material and which is adopted to be inserted in a tube LT so that the magnetic material of the key are moved into proximity of the magnets whereby the contacts are operated. By arranging inserts of magnetic and non-magnetic material in the positions FA, FB, FC, FD in different combinations, the contacts may be operated in 15 different combinations. Each of these combinations corresponds to one position of a switch which can therefore be set so that only one combination of the inserts in the key will operate the correct set of contacts to form an electrical circuit through the switch whereby a device such as the entrance barrier of a car park may be operated. In order to complete the circuit a contact SE always has to be made by fully inserting the key into the tube LT.
Patent GB-308506-A (GB)
Title: Improvements in the manufacture of pistons
IPC: F02F3/24
Filed: 1928-05-02
Abstract: 308,506. Butterfields, Ltd., and Butterfield, A. May 2, 1928. Pistons.-In pistons for twostroke engines, having a side port with upwardly inclined baffle, the die casting is facilitated by forming the baffle 5 as a flat surface while the, upper part 6 of the piston is also flat the two surfaces forming a parallel or divergent hole to release the hole-forming plunger. The, top of the piston is formed with a swelling at right-angles to the usual' deflector 9, and side depressions, the thickness of the piston at this part being substantially constant.
Patent GB-1317229-A (GB)
Title: Axial flow valve
IPC: G05D7/01
Filed: 1970-10-15
Abstract: 1317229 Valves SINGER CO 15 Oct 1970 [17 Oct 1969] 13026/72 Divided out of 1289874 Heading F2V [Also in Division G3] The subject-matter of this Specification is identical with that described in Specification 1,289,874, but the claims differ.