baber/WOPTO huggingface dataset:
Patent GB-454358-A (GB)
Title: Improvements in or relating to free-wheel brake hubs
IPC: B62L5/04
Filed: 1936-03-20
Abstract: 454,358. Coaster - hubs. FICHTEL & SACHS AKT.-GES., Schweinfurt, Germany. March 20, 1936, No. 8348. Convention date, March 22, 1935. [Class 136 (ii)] In a coaster hub of the type having a toothed clutch for securing against rotation a displaceable conical member 12 for expanding a brake sleeve 16 against the hub on back-pedalling, the member 12 is provided at its inner end with teeth 22 of a clutch 22, 23 adapted to be opened and closed, under the control of transmission pins 30, which are slidable in longitudinal bores in the member 12 and are actuated by relative rotary movement of inclined teeth 11, 10 connecting the member 12 with the driving member, which, as shown, may comprise a ring 9 forming part of a wedging-roller clutch for driving the wheel hub. The clutch teeth 23 are formed on a member 24, 24<a> fixed to a sleeve 25, which is keyed to and slides on the axle 20 under the guidance of lugs 28 sliding in a slot 19<a> in the fixed brake-expanding cone 19, a tongue 16a on the brake sleeve 16 also engaging the slot 19a. The inner end of each pin 30 bears against the clutch member 24, and the outer end projects into the space between two inclined teeth 11 and therefore into the path of movement of one of the inclined teeth 10. On forward driving, the teeth 10, 11 engage one another by their axial flanks and rotate the member 12, the highest parts of the teeth 10 pressing the pins 30 inwards to disengage the clutch 22, 23 against the action of a spring 27. On back-pedalling, the relative displacement of the teeth 10, 11 causes release of the pins 30, Fig. 2, and thus allows the spring 27 to close the clutch 22, 23, whereby the member 12 is prevented from rotating and on further back-pedalling is displaced by the inclined teeth 10, 11 to expand the brake sleeve 16. The pins 30 may be provided with enlarged heads for engagement with the teeth 10.
Patent GB-634056-A (GB)
Title: Improvements in or relating to processes for the manufacture of insulated electric conductors
IPC: H01B7/282
Filed: 1948-03-22
Abstract: 634,056. Cables. PIRELLI SOC. PER AZIONI. March 22, 1948, No. 8391. Convention date, April 28, 1947. Drawing to Specification. [Class 36] Textile-insulated conductors are covered with a layer of polyvinyl chloride by first passing the insulated conductor through a bath containing an aqueous dispersion of p.v.c., then evaporating the water therefrom, passing the thuscovered conductor through a bath containing a dispersion of p.v.c. in a plasticizer such as tricresyl phosphate, and finally gelatinizing the p.v.c. The evaporation of the water and gelatinization of the p.v.c. are carried out in ovens heated to about 150‹ C. The soaking and heating operations may be carried out more than once to obtain a thicker layer of p.v.c., which may be coloured for identification purposes.
Patent GB-910235-A (GB)
Title: Process for making magnetically soft ferrous alloys
IPC: C22C38/06
Filed: 1959-03-11
Abstract: 910,235. Making ferrous alloys; heat treatment. MADONO, O., and RIKEN PISTON RING KOGYO CO. Ltd. March 11, 1959 [March 13, 1958], No. 8482/59. Classes 72 and 82 (1). [Also in Group XXII] A magnetically-soft ferrous alloy is produced by arc melting-in a water-cooled metal crucible and under a flux-a consumable electrode built up from low-carbon ferrous material and Si and/or A1, rolling the resultant ingot to sheets and annealing the sheets at above the recrystallisation temperature of the alloy e.g. 900‹ C. Up to 5.5% Si and 16% Al may be present in the resultant alloy. The low-carbon ferrous material is obtained by decarburising steel sheets, rod or scrap at a temperature above 700‹ C. in a hydrogen atmosphere until the carbon content is less than 0.01%. The consumable electrode is built up from alternate sheets 1 of decarburised material and aluminium strip 2 (Fig. 3) or from sheets of decarburised material 1 and powdered Si or FeSi 2 (Fig. 4). The electrode is then arc-melted under a flux of one or more oxides or fluorides of alkali or alkaline earth metals. A preferred flux is a mixture of fluorspar and lime. The resultant alloy is hot or cold rolled and then given a recrystallisation anneal at above 900‹ C. in a nitrogen or H 2  atmosphere.
Patent GB-127102-A (GB)
Title: Improvements in or relating to Trolley Heads for Electric Tramways or the like.
IPC: B60L5/06
Filed: 1918-05-23
Abstract: 127,102. Wadkin, Mills, & Co., Thatcher, A. G. H., and Small, J. G. May 23, 1918. Devices for replacing collectors. - In trolly heads for electric tramways &c. provided with a guide-plate e adapted normally to lie within the head, the plate is mounted upon a central vertical pin k adapted to slide in the spindle d, and is controlled by the usual trolly rope or the like. As shown, the control rope is connected to a bell. crank lever g controlled by a spring l so as to hold the guide in its inoperative position. Covers may be provided to close the openings through which the movable parts work.
Patent GB-1261080-A (GB)
Title: Phosphonium salts and their preparation
Inventor: PRIESTLEY HILL MOORE
IPC: C07F9/54
Filed: 1969-02-18
Abstract: 1,261,080. Phosphonium salts. UNILEVER Ltd. 18 Feb., 1969 [19 Feb., 1968], No. 8638/69. Heading C2P. A phosphonium sulphonate salt is obtained by reacting in an aqueous medium an inorganic sulphite, e.g. sodium, potassium or ammonium sulphite, with a quaternary phosphonium halide having at least one ethylenically unsaturated group attached to the phosphorus atom in in a molar ratio of at least 3 : 1. The phosphonium halide reactant may be a cyclic compound of formula  or a non-cyclic compound of the formula wherein R 1  is a C 10 -C 18  alkyl radical, R 2  is a C 6 -C 10  aryl or aralkyl radical, R 3  is an ethylenically unsaturated C 3  alkylene radical or a mono- or di-methyl substituted ethylenically unsaturated C 3  alkylene radical, R 4  and R 5  are the same or different C 2 -C 18  alkenyl radicals and X is a halide ion, e.g. Cl, Br or I. The products include novel compounds having the cyclic structure wherein R 1  and R 2  are as defined above and R 6  is a saturated C 3  alkylene or a mono- or dimethyl substituted saturated C 3  alkylene radical and non-cyclic salts of the formula and in which R 1 , R 2  and R 4  are as defined above, R 7  is a C 2 -C 18  sulphoalkyl anion and R 8  is a salt of a C 2 -C 18  sulphoalkyl anion bearing a cation corresponding to the cation of the inorganic sulphite reactant employed. The products are broadly useful as surfactants or as biological toxicants. Octadecyl phenyl 3-methyl 3-phospholenium bromide is obtained by heating octadecyl bromide and 3-methyl-1-phenyl phospholene in a nitrogen atmosphere. Diallyl dodecyl phenyl phosphonium bromide is obtained similarly from diallyl phenyl phosphine and dodecyl bromide and dipropenyl phenyl tetradecyl phosphonium bromide is also obtained similarly from dipropenyl phenyl phosphine and tetradecyl bromide.
Patent GB-644832-A (GB)
Title: Welding electrode for cast iron
IPC: B23K35/30
Filed: 1948-03-24
Abstract: A welding electrode for cast iron has a core of iron with carbon content 0-1.6 per cent and a coating containing 10-75 per cent carbon, 10-50 per cent silicon and 10-50 per cent slag forming material and a binder.  The core or the coating may contain copper, nickel or cobalt, and the slag forming materials may comprise limestone, rutile, fluorspar kaolin and chalk.
Patent GB-440923-A (GB)
Title: Improvements in joint-making packing
IPC: F16J15/08
Filed: 1935-03-20
Abstract: 440,923. Joint - making packing. AUBERT, M., 11, Rue Tronchet, Paris, and BERTHON, R., 9, Boulevard de Villiers, Neuilly-sur-Seine, both in France. March 20, 1935, No. 8750. Convention date, March 27, 1934. [Class 122 (iii)] A joint-making packing consists of a sheet of hard, elastic metal in which is formed a network of ribs comprising cells between them. The ribs may be on one or both faces. The sheet may comprise a plurality of layers. A layer of lead may be lined with an extremely thin sheet of nickel or other unoxidizable metal upon which is provided the ribs and cells. The plastic metal may be replaced by a non- metallic material such as resin, casein, &c. The joint surface may be initially covered with a semi-plastic substance such as a coating on a lead basis, varnish, &c. The cells may be formed as triangles, squares, polygons &c., and may be produced by stamping, rolling, by the use of matrices or engraved rolls, by etching, galvano-plastic methods, &c.
Patent GB-765998-A (GB)
Title: Improvements in or relating to negative feed-back transistor amplifiers
IPC: H03F1/34
Filed: 1955-03-25
Abstract: 765,998. Transistor amplifying circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 25, 1955 [March 26, 1954], No. 8778/55. Class 40(6) In a negative feed-back amplifier having transistors 4, 5 and employing an input transformer 6, feed-back from resistor 11 is applied over a tertiary winding through resistor 12 in order to reduce the size of the transformer. A microphone 1 feeds over a matching transformer 2 a pre-amplifier transistor 3, feed-back being taken to a tertiary winding on the transformer 2. The working-point of transistor 3 is stabilized by resistors 8, 10 decoupled by capacitor 9.
Patent GB-232208-A (GB)
Title: Improvements in or relating to hoods for motor cars
IPC: B60J7/12
Filed: 1925-04-02
Abstract: 232,208. Soc. Anon. Carrosserie Kelsch. April 10, 1924, [Convention date]. Hoods.-In hoods for road vehicles, the frame of the hoop sticks 2 is pivoted on a single axis 3 movable in a direction longitudinally of the car in such a manner that the hoops sticks when folded and superposed can be inserted into or disengaged from a recess in the rear of the car by said movement. As shown in Fig. 1, the axis 3 is mounted on a lever 4 which is moved clockwise to withdraw the folded hood from the recess and locked to a locking piece 9 while the hood is unfolded. In another form, the lever 4, Fig. 3, is first rocked clockwise to withdraw the folded hood and then rocked to its initial position against the locking piece 9 after the hood has been unfolded. In a modification, the axis 3 may be arranged to slide instead of being carried by the lever 4.
Patent GB-1213021-A (GB)
Title: Electrical pull switches
Inventor: STREET GEOFFREY WILKINS
IPC: H01H17/16
Filed: 1968-02-23
Abstract: 1,213,021. Mechanical switches. FLAGGRAND Ltd. 14 Jan., 1969 [23 Feb., 1968], No. 8799/68. Heading H1N. In a switch of the kind where successive pulls on a cord (not shown) attached to the end 81 of a strip 80 result in stepwise rotation of a contact disc in one direction only, the disc is of insulating material and carries printed-circuit type discrete areas of conducting metal. As shown, two discs 90 and 91 carrying printed-circuit contact areas (92 to 97, Figs. 2 to 7, not shown) are urged outwardly by spring washers therebetween so as to engage respective fixed contacts such as 22, 24 and 55, 57 carried on insulating plates 16 and 50 and connected by printed circuitry to terminal bushes such as 32, 33. Further fixed contacts (28, 31, Fig. 3, not shown) on plate 16 and (60, 63, Fig. 2, not shown) on plate 50 with respective terminal bushes (34 to 37) are also provided. The arrangement of contact areas on the discs 90 and 91, which are stepped 90 degrees by each actuation, is such that the two conjointly-operated double-pole switches formed by disc 90 with plate 16 and disc 91 with plate 50 are respectively rendered off/off, on/off, on/on and off/on by successive pulls. A neon lamp 14, housed in a boss 13, is connected to indicate the condition of one of the switches.
Patent GB-421797-A (GB)
Title: Improvements in or relating to control systems for electrically propelled vehicles, the motors of which are employed regeneratively for braking purposes
IPC: H02P3/06
Filed: 1933-03-23
Abstract: 421,797. Master control of D.C. motors; electromagnetic switches. SOMAJNI, G., and SOC. ITALIANA E. BREDA, 9, Via Bordoni, Milan, Italy. March 23, 1933, No. 8833. Void [Abridged as open to inspection under Sect. 91 of the Acts, Oct. 23, 1933]. [Classes 38 (iii) and 38 (v)] In an electric motor control-system, sections of a starting or braking resistance are automatically cut out in timed sequence, and are all reinserted simultaneously when the the motor connections are changed, e.g. from series to parallel, or from braking to motoring. As shown, compound traction-motors M<1>, M<2> under the control of a drum controller M have armature resistances R<1> .. R<8> with associated contactors C<1> .. C<4> controlled by further contactors S<1> .. S<4> having a delayed action in the closing direction. In position 1 of the controller, the motors brake on resistances R<1> .. R<8>, which are cut out in timed sequence by contactors C<1> .. C<4>. Upon moving the controller to position II for series motoring, or position III for parallel motoring, the energizing circuit of contactors S<1> .. S4 is broken momentarily at contacts O, OO, in the controller, so that contactors C<1> .. C<4> simultaneously reinsert resistances R<1> .. R<8>, which are then cut-out in timed sequence again. In position IV a shunt field resistance 31, 33 is inserted. A device B, connected in circuit with contactors C<4> is provided on the controller to lock it when in positions II and III until all resistances R<1> .. R<8> are cut out. Contactors S<1> .. S<4> may have additional windings connected in the motor armature circuit so as to render their operation more rapid in braking than in motoring. The delayed-action contactors S<1>.. S<4> may be constructed with a winding s, Fig. 2, surrounding a non-magnetic oil dash-pot t, and enclosed in a magnetic casing b having an upstanding core part n. A magnetic piston p carries a contact member c adapted to bridge fixed contacts x, x<1>, and has a valve m with a bleedhole which provides slow closing of the contacts when the winding is energized, and rapid opening under the action of a spring e when de-energized.
Patent GB-250257-A (GB)
Title: Improvements in intermittently operating electric regulators
IPC: G05B1/02
Filed: 1926-04-01
Abstract: 250,257. Allmõnna. Svenska Elektriska Aktiebolaget. April 3, 1925, [Convention date]. Regulating, automatic. - In order to prevent welding of the contacts of an electromagnetic vibrating regulator the oscillating member is arranged so that it moves in resonance with the oscillation-producing impulses and is resiliently connected with one or more of the contacts so that these remain closed for substantially half a period of the oscillation. The effort of the voltage controlling coils 32, 35 of the regulator shown, which are arranged in series and in co-operation, is balanced at normal voltage by means such as a spring 43, leaving the oscillating member 41, which is pivoted on a knife edge 46 and carries the voltage coil 35 and the oscillation producing coil 52, free to respond to the impulses of the latter. These impulses are produced by the variations in the voltage of the exciter resulting from the operation of the switch arm 45, which variations are caused by the transformer 53 to produce current variations in the coil 52 which react upon a field which may be that of a permanent magnet 51. The movable contact 44 is carried by the switch arm which is preferably independently pivoted on the same axis as the member 41 and operated through a light spring 49.
Patent GB-1420479-A (GB)
Title: Agglomerating and shaping active carbon material
IPC: C01B32/384
Filed: 1973-02-23
Abstract: 1420479 Agglomerating and shaping active carbon COAL INDUSTRY (PATENTS) Ltd 15 Feb 1974 [23 Feb 1973] 8898/73 Heading C1A A shaped mass of active carbon material is produced by binding together a mass of agglomerates of active carbon material with a binder comprising a thermosetting resin, forming the mass and resin into the required shape, and heating the thermosetting resin, e.g. for 2 hours at 200‹ C., to cause it to set. The agglomerates may comprise active carbon material set in a thermosetting resin. The ratio of active carbon material of the agglomerates to total binder in the shape may lie between the limits of 19 : 1 and 3 : 1 by weight. The agglomerates may be wetted with a wetting agent (water, binder, starch solution, liquid resin or hardening agent). Reinforcing means (fibres, mesh or rods or bars) may be incorporated within the shaped mass.
Patent GB-107419-A (GB)
Title: Improvements in Piston Construction.
Inventor: WERRA CONRAD
IPC: F02F3/08
Filed: 1916-06-27
Abstract: 107,419. Werra, C. June 27, 1916. Pistons are made oi aluminium and carry undivided bearing-rings 10, 11. preferably of iron, of rectangular cross-section and spaced from the body of the piston. The upper ring 11 has a flanged downwardly-extending portion 13, and is provided with grooves carrying the packing-rings.
Patent GB-472819-A (GB)
Title: Improved apparatus for counting and registering passengers on public vehicles
IPC: G06M1/04
Filed: 1936-03-26
Abstract: 472,819. Gate - operated apparatus for recording and registering fares. MACHADO, jun., M. G. March 26, 1936, No. 9058. Convention date, March 27, 1935. [Class 106 (iii)] Comprises a device for registering the passage of persons individually to and from a vehicle in which an arm is turned one way on entry and the opposite way on exit and the register actuated. The apparatus is mounted in a case of small dimensions at the top of a pedestal at the point of entry. Suppose the vehicle is just starting on a journey with five fare sections. The knobs 1 are turned to bring the indication "1st Section" to the apertures 2. When a passenger enters, he brushes by the light arm 3 turning it about its axis to pull the cable 5 and operate a sliding bar 6 carrying a pivoted pawl 8 to advance a ratchet wheel 9 one tooth. Connected with the wheel 9 is a printing disc 11 with as many consecutive numbers on its periphery as there are teeth on the wheel 9. Successive numbers corresponding to the number of passengers entered are thus brought to the printing point 12a. A similar mechanism deals with persons leaving the vehicle and is worked by the arm 3 through a cable 13. Just before reaching the second section, the button 1 is turned to bring this indicator to the window 2 and a tooth 21 on the drum 20 moves a rod 23 carrying a pad 25 to carry the paper strip 26 and ribbon 29 against the printing wheel to print the number of passengers who have entered the car in the first section. During and towards the end of this operation a second tooth 21 engages a tooth 32 on a bar 33 and depresses it, dragging down a cable 35 which moves the blade 36 to slide the common spindle of the drum 11 and wheel 9 axially against spring influence causing the printing disc to be uncoupled from the wheel 9 and zeroized by a spring which has been twisted by turning of wheel 9. The drum 11 and wheel 9 are coupled up again by the return of the spindle when the blade 36 is released. The exits are similarly printed and a transmission 42 mounted on one of the rollers 30 and over the shaft of the wheel 27 moves the copying ribbon forward. Printing ink may be supplied by rollers 44, 45 and trough 46. Mounted on top of the pedestal 4 is a small box containing a toothed segment 47 integral with the arm 3 and to a member 48 thereon are fastened the cables 5, 13. Further wheels 49, 50 with ratchets 51, 52 above them are mounted on shafts 54, 55 carrying rolls 53. A band of paper is wound on the rollers and is provided with numerals corresponding to the number of seats in the vehicle. The band is moved on or back as a person enters or leaves and the number of passengers in the vehicle is indicated at the window 57.
Patent GB-984042-A (GB)
Title: Application of identification sleeves to electric components
Inventor: HESTER PATRICK MURRAY
IPC: H01B13/34
Filed: 1962-03-27
Abstract: 984,042. Applying flexible sleeves e.g. to cables. PERMARK SERVICE Ltd. Feb. 19, 1963 [March 9, 1962], No. 9129/62. Heading F2S. Apparatus for applying identification and other resilient sleeves, e.g. to electric conductors, comprises a collett 15 which is reciprocable by means of a pneumatic piston and cylinder unit 17 within a tubular extension 18 of the latter and which, in its extended position, is adapted to engage the head 8 of a transfer member 7 after the latter has been inserted into the tube 18 through an aperture 29 in a stripper unit 19 screwed into the outer end of the tube 18. The transfer member 7 is drawn into the tube 18 when the collett 15 is retracted so that sleeves 13, initially collected on the member 7, are pushed by the stripper 19 along the transfer member 9 and over a conductor 12 secured in an aperture 11 in the end of the member 9. The stripper unit 19 comprises a detachable cap with radially-acting spring-loaded jaws 16 having rounded inner tips which define the central aperture 29. The collett 15 consists of a sleeve 33 which is split at its forward end and provided with a flared mouth 35 and which is held in a socket 31 screwed on to the end of piston-rod 28 by a screw 34 and a carrier 32 screwed into the socket 31. An axiallyslidable collar 38, pressed outwardly by a spring 39 surrounding the sleeve 33, engages a tapered head portion 37 of the latter to close it into engagement with the transfer member 7. Fig. 1 shows a hand-held unit with a handle 21 which incorporates a valve unit controlled by a thumb plate 22; alternatively the unit may be supported, e.g. by a hoist or mounted on a bench. When the collett 75 is in its extended position ready to pick up the transfer member 7 the collar 38 is retracted by an abutment shoulder 41 on the stripper unit 19. Specification 945,363 is referred to.
Patent GB-547837-A (GB)
Title: Improvements relating to frequency modulation
IPC: H03C3/14
Filed: 1941-07-18
Abstract: 547,837. Frequency modulation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 18, 1941, No. 9130. Convention date, July 19, 1940. [Class 40 (v)] The frequency-determining circuit of an oscillator comprises a reactance in series with a resistance, the reactance being connected across the grid-cathode circuit of a valve, in the anodecathode circuit of which the resistance is connected and frequency modulation being effected by varying the mutual conductance of the valve. As shown oscillations are generated in a back-coupled valve VT1, the frequencydetermining circuit comprising an inductance L, capacity C, and resistance R. The capacity C is connected between the grid and cathode of the modulating valve T2, and the resistance R is connected between cathode and earth, the anode being earthed by condenser 26. Modulating-voltage is applied at M to the grid of the valve VT2 and as the mutual conductance of the valve rises the effective capacity of C falls, thus raising the oscillation frequency of the valve VTI. In a modification, the resistance C is an inductance and the frequency falls as the mutual conductance rises (Fig. 2 not shown). Both arrangements may be used in combination, the modulating voltage being applied in push-pull to a pair of modulating-valves (Fig. 3 not shown).
Patent GB-634198-A (GB)
Title: Improvements relating to the manufacture of concrete pipes
IPC: B28B21/94
Filed: 1947-04-03
Abstract: A lining mixture for concrete pipes comprises mineral particles such as sand or asbestos fragments, a cement which sets upon or soon after hydration, and a stable aqueous emulsion of bituminous or other plastic materials, such as resinous or wax-like material, ligrin-containing material or synthetic resins, which have greater resistance than cement concrete to the action of acids, alkalis and salts likely to occur in sewage &c.  Two examples are given comprising in stated proportions:- (1) granite sand, Portland cement, bitumen emulsion and water, (2) pit sand, Portland cement, rubber latex and water.