baber/WOPTO huggingface dataset:
Patent GB-1386073-A (GB)
Title: Method of producing dyed material
IPC: D06B9/04
Filed: 1971-01-29
Abstract: 1386073 Treating dyed textiles J & P COATS Ltd 4 Feb 1972 [29 Jan 1971] 3537/71 Heading D1B Textile materials are dyed in aqueous or non-aqueous media followed by drying the material which is then treated in a cleaning media consisting of acetone in a proportion from 100% to 50% and a liquid neutral diluent in a proportion of 0% to 50%. Water may be employed as diluent, the preferred temperature for cleaning being 40 to 50C, the material preferably being dried after treatment with the cleaning media by subjection to a sub-atmospheric pressure below the vapour pressure of the cleaning substance.
Patent GB-1285242-A (GB)
Title: Improvements relating to wheelsets
Inventor: GIMLETT GILBERT DONALD
IPC: B60B37/00
Filed: 1970-01-26
Abstract: 1285242 Wheelsets BRITISH RAILWAYS BOARD 19 April 1971 [26 Jan 1970 7 Oct 1970] 3597/70 and 47705/70 Headings B7C and B7L A wheelset comprises a pair of wheels 12 and an axle 13, the axle being formed at least in part by a fibrous resin bonded material 23 which may be composed of carbon, boron, glass and/or asbestos fibres applied to a metal axle core 20. Each wheel centre 14 may comprise two annular sections 15, 16, each produced by pressure moulding using resin pre-impregnated carbon and/or glass fibres, and secured together, and the centre has at least one axially projecting sleeve portion 24 whereby the centre is secured to the axle by a continuation of said fibrous material from the axle on to each wheel centre as shown. Alternatively, the wheel centre may be formed at least in part by fibrous material laid on an annular core made of plastics foam or lightweight rigid material such as timber, the wheel centre being secured to the axle by applying additional fibrous material to the portion of the axle between the wheel centres and continuing this additional fibrous material over each wheel centre to the axle ends where it is blended into the surface. The fibrous material may be in the form of filament, woven fabric, tape or sheet and the angle of winding of said material on to the axle and wheel centres is varied to achieve maximum advantage of the fibre properties.
Patent GB-538807-A (GB)
Title: Electric signal transmission systems
IPC: H04B3/12
Filed: 1940-02-27
Abstract: 538,807. Automatic volume control. STANDARD TELEPHONES & CABLES, Ltd. (Western Electric Co., Inc.). Feb. 27, 1940, No. 3622. [Class 40 (iv)] In a carrier transmission system, a pilot current received at a main repeater station controls the strength of a second pilot current sent back to control the gain at the preceding repeaters. The second pilot current may also control the gain at the main station itself and at subsequent stations. In all cases gain is controlled by varying the heating of a substance having a high and preferably negative temperature co-efficient of resistance, e.g. silver sulphide or boron, in the beta circuit of the amplifier concerned. In one arrangement, Figs. 4 to 6 (not shown), the second pilot is controlled by the combined effect of two pilots received over separate lines and controls the gain of repeaters in a number of lines at each station. In a modification, Figs. 7 to 9, pilot current received over the uppermost line in the main station 5 is filtered out and rectified and control the amount of commercial frequency current supplied by a generator 71 to be passed on via an adjusting network 67 and hybrid coil to a control circuit 69 for the local amplifiers and via a network 83 and a further hybrid coil to a control circuit 85 which is coupled via a phantom circuit on the upper two pairs to the control circuit of the amplifiers at the preceding station 6. These control circuits are also fed with an adjustable amount of commercial frequency current via networks 68, 88 to determine the normal gain. The second pilot is also fed via a circuit 86 and a phantom circuit formed by the lower two pairs to similar adjusting networks and hybrid coils at the repeater station 8 for the control of gain there and at repeater station 7. At each station the ignition circuit of a three electrode cold-cathode discharge tube is fed with current direct from the commercial frequency source and with current from the gain-control circuit in opposition. Normally the tube remains inert but if the pilot current fails the tube breaks down and provides a circuit whereby the gain controlling elements are heated to an average extent. The circuit 87 may involve a phantom circuit on additional signalling pairs.
Patent GB-667902-A (GB)
Title: Improvements in vehicle suspension systems
IPC: B07B13/00
Filed: 1950-02-13
Abstract: 667,902. Road-vehicle undercarriages; laminated springs. DOORNE, H. J. VAN. Feb. 13, 1950, No. 3658/50. Classes 108(ii) and 108(iii) In a suspension system for a vehicle comprising transverse springs arranged one above the other and rigid with the sprung portion of the vehicle, each of the springs consisting of a main leaf the outer ends of which carry stub axles, the main leaves diverge from their point of fixation to the vehicle and then approach each other by a curve formed in at least one of the main leaves, the ends of the main leaves being rigidly secured beyond the curve or curves. The frame consists of a central main beam 1 having V-shaped ends 2. Cross members are welded to the beam 1 and are united by a rim 4 which carries pivotal front, rear and side boards 5. The springs 15, 16, and a spacing block 23, are clamped by bolts 14 between plates 12, 13 to a vertical support 11. The end of the main leaf 15<SP>1</SP>, 16<SP>1</SP> of each spring 15. 15 is forged to form half of a stub axle. Each stub-axle half is united by welding. In a modification, Fig. 5 (not shown), the leaf ends 15', 16<SP>1</SP> are welded to a unitary stub axle support and the leaf 15<SP>1</SP> is entirely straight.
Patent GB-547983-A (GB)
Title: Improvements relating to temperature measurement or control of electrically heated salt baths and the like
IPC: G01K1/08
Filed: 1941-03-18
Abstract: 547,983. Automatic temperature-control systems. ORAM, J. E., and WILD-BARFIELD ELECTRIC FURNACES, Ltd. March 18, 1941, No. 3716. [Class 38 (iv)] [Also in Groups XI and XXJ Electrodes 2 mounted in pockets 3 for heating a salt bath 1 are provided with thermocouples 5 in central holes drilled into the electrodes, whereby the couples are protected from the salt. The leads may pass through a pipe 6 screwed into the electrode. Alternatively, the electrode may form part of the couple, the conductor 5a and the pipe 6 forming the leads. The thermocouple, or an electric resistance type of pyrometer similarly arranged, is used to indicate and/or control the temperature.
Patent GB-923333-A (GB)
Title: Combination of pushed vehicle and pusher vehicle
IPC: B62D53/02
Filed: 1962-02-01
Abstract: 923,333. Dozer-bowl scraper combinations. GENERAL MOTORS CORPORATION. Feb. 1, 1962 [March 30, 1961], No. 3807/62. Class 68 (1). [Also in Group XXXII] To allow of a pusher member 33 of a pusher vehicle, e.g. a dozer, satisfactorily pushing against a thrust-receiving member 24 on a vehicle e.g. a bowl type scraper a roller 40 is mounted on one or the other of the members 33, 24 for rotation about a horizontal axis, said roller 40 being contacted during pushing operations by the other member.
Patent GB-511757-A (GB)
Title: Improvements in and relating to gas blast electric circuit breakers
IPC: H01H33/00
Filed: 1939-02-06
Abstract: 511,757. Gas-blast switches. AKT.-GES. BROWN, BOVERI, & CIE. Feb. 6, 1939, No. 3867. Convention date, Feb. 8, 1938. [Class 38 (v)] Gas blast circuit breaker in which the switch and exhaust chambers and the contacts are mounted on a compressed gas container by means of an intermediate supporting insulator which serves to convey the pressure gas and which carries the pressure gas blast valve at its end which is adjacent to the switch chamber. In Fig. 1 a gas container a supports an insulator b which conveys pressure gas to the switch mounted inside an insulator c. Pressure gas which is released by valve i, operated by means of piston k and pilot valve m, m', opens the contact f and at the same time opens, by means of tube r and and piston o, the isolating switch p. d is a silencer. This arrangement may be adapted to form two power points of interruption. In another arrangement, Fig. 4, the gas blast valve i and an exhaust valve t may be maintained closed by pressure gas from pilot tubes u', u<2>. On releasing the pressure in these tubes the pressure gas from a can open valve i, and the switch by acting on the piston f<1>, and finally the exhaust valve t against the action of a retaining spring.
Patent GB-273589-A (GB)
Title: Improvements in kinematograph spoolcases and in connection therewith
IPC: G03B17/26
Filed: 1926-02-11
Abstract: 273,589. Thornton, J. E. Feb. 11, 1926. Kinematograph apparatus.-A spool case comprises two spools B, C, two leader strips permanently secured to the spools and to the ends of the film, and two slots a', a<2> at the forward end of the case, the leader strips being long enough to extend out through one of the slots, form a long loop outside the case, and re-enter the case through the other slot. The spools are rotatable in both directions, and the take-up spool C may be placed behind the pay-out spool B, or vice versa. The leader strip D<1>, in a spool case for use in a camera, may have a long central slot through which projects a pin f to prevent withdrawal of the film, the pin being carried by spring-controlled pivoted arms F which are moved by the camera spindle received by the spool B when the case is placed in position, thereby releasing the film, Curved channels J, and a flexible, external, sliding, shutter covering the slots may be provided to render the spool case light-tight. The case may be provided with a single-width film having one series of images, a single-width or double-width film having two series of images, one exhibited during each direction of feed, or with two single-width films having their images relatively inverted. Film winding means may be provided in the case, and may comprise a friction disc on a pivoted arm capable of being brought into engagement alternatively with friction wheels secured to the spools, or a rubber-covered roller simultaneously engaging the coils of film on the two spools. The spool case may be stamped or drawn from thin sheet aluminium and may be formed with tubular pillars to carry the spools; it may comprise two shallow trays, fitting one over the other and secured by secret means. The leader strips may be a double thickness of linen tape or parchmentized paper, or a linen tape with paper each side: they may be opaque or semi-transparent, and may be perforated with wording serving as instructions to the operator. The spools may be with or without flanges.
Patent GB-196731-A (GB)
Title: Improvements in or relating to devices for preventing unauthorised use of motor vehicles
IPC: B60R25/00
Filed: 1922-02-10
Abstract: 196,731. Payne, H. C. Feb. 10, 1922. Guarding against unauthorized use.- The gear - lever A engages the selector forks D of the changespeed gear by means of a slidable member C which can be locked either in the position shown, or when it is withdrawn from the fork D , so that in the latter position the gear cannot be operated. The slidable member C is connected by a flexible rcd G to a plunger H carried by a hand-grip R which slides on the gear-lever. Spring-pressed hooked arms K pivoted on the plunger H are adapted to engage either in a groove A<2> or behind a shoulder A<3> on the lever. When a key N is inserted and rotated, it operates the arms K through a cam disc M and releases them from engagement with the lever, so that the hand-grip R can be moved up or down to engage the member C with the selector forks D or to free it therefrom. In a modification the hand-grip is fixed and the key moves the plunger H and the member C up and down. According to the Provisional Specification the invention may be applied also to a brake lever or to the steering-wheel, and the ignition circuit may also be controlled by the locking means.
Patent GB-1520714-A (GB)
Title: Feeder pan assembly
IPC: A01K39/012
Filed: 1977-02-01
Abstract: 1520714 Feeding animals CHORE-TIME EQUIPMENT INC 1 Feb 1977 [2 Feb 1976] 03961/77 Heading AIM In a poultry feeder of the type in which a conveyor supplies feed to a supply tube 25 leading to a pan 21, the supply tube is surrounded by a hood 20 and both the tube and the hood co-operate with the pan to form gates which together control supply of feed to the pan, and the pan is adjustable to vary the gate sizes. This is achieved by an interconnector 22 between the pan and the hood having three struts 42 engaging beneath a lip of the pan and connected together by inclined supports 53 which lie on ramps 56 formed on the hood. In order to determine the gate sizes precisely, detents 60 are formed in the edge of at least one ramp and accommodate vertical portion(s) of the associated strut(s) 42. Reference has been directed by the comptroller to Specification 1478694.
Patent GB-1024300-A (GB)
Title: Shower-bath cubicle
IPC: A47K3/28
Filed: 1965-01-29
Abstract: 1,024,300. Spray producers. E. LUNARDI. Jan. 29, 1965, No. 3976/65. Heading B2F. [Also in Division A4] In a shower bath, in which the impingement of upwardly directed water jets on the body is stated to give a massaging effect, jet nozzle assemblies each comprise at least two kinds of nozzle. Preferably, the nozzle assemblies are arranged on either side of the bath cabinet at vertically staggered intervals (Fig. 1, not shown). In a single assembly, slit orifices in nozzles 1-7 produce flat jets while nozzles 8-10 produce narrow cylindrical jets. The assembly is controlled by a single tap 11.
Patent GB-592058-A (GB)
Title: Improvements relating to heat interchange apparatus
IPC: F28F9/02
Filed: 1945-02-16
Abstract: 592,058. Tubular heat-exchangers. MORRIS MOTORS, Ltd., and DONO, G. E. Feb. 16, 1945, No. 3983. [Class 64 (iii)] [Also in Groups XXII and XXV] In a heat-exchanger, e.g., an engine radiator or an oil cooler or heater, with a header at one or each end of a tube system, a stay bolt e is attached to a wall d of the header by means comprising a part or parts a formed on or secured to the wall and accommodating the bolt head f, and another part g formed on or. secured to the bolt e and slidably connected to the part or parts a so as to permit relative sliding movement of the parts a, g in a plane transverse to the axis of the bolt. The parts a may be long enough for the attachment of two or more bolts. The bolt e may be attached to the opposite wall h of the header by a two-part nut o, p, with a seal q of fusible metal.
Patent GB-542356-A (GB)
Title: Improvements relating to electronic amplifiers
IPC: H04B15/00
Filed: 1940-03-04
Abstract: 542,356. Valve amplifying circuits. GROVES, W. W. (Automatic Signal Corporation). March 4, 1940, No. 4015. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 5, 1940.] [Class 40 (v)] The effect of voltage changes in the supply circuit is compensated by connecting a circuit comprising a condenser 13 and resistance 12 between a point on the H.T. supply circuit and the circuit connecting the anode of one valve to the grid of the next. In the pentode amplifier shown, the circuit 12, 13 is connected to a point on the supply potentiometer 14 shunted by condenser 18. The time constant of circuit 12, 13 is substantially equal to the time constant of the electron emission change in relation to the voltage supplying the heater coil of a standard pentode, which is of the order of four seconds. If the supply voltage rises, the filament heating current rises, and with some delay the current through the valve increases, thereby reducing the voltage on the anode which is transferred to the grid of the next valve; this reduction is compensated by an increased voltage applied through the circuit 12, 13. The electrodes of the valve 33 have their potentials determined by connection to the potentiometer 8, 7, 2, the values of these resistances being so chosen that a change in the potential applied to the anode is substantially compensated by the changes in the voltages applied to the grids. The compensation effected by the circuit 12, 13 may be incomplete and so chosen as to compensate the effects of variation of supply voltage on the next valve.
Patent GB-764961-A (GB)
Title: Water resistant lubricating grease
Filed: 1954-02-11
Abstract: A lubricating grease composition comprises a major proportion of a lubricating oil, a grease forming proportion of an alkali metal soap of a C12 to C24 fatty acid and a siliconic acid which has been produced in the grease composition from an added alkali metal siliconate.  Alkali e.g. those of formula CH3SiOxMy wherex and y are 1-5 and M is an alkali metal, metal methyl siliconates, such as sodium methyl siliconates, are referred to; methyl siliconic acid is liberated by carbon dioxide in the atmosphere and precipitates out on the soap, which is thus waterproofed.  From 0.1 to 10 per cent of the siliconate may be used.  The siliconate may contain free alkali metal base which may be used as the saponifying agent for fatty acids when the soap is formed in situ in the oil.  From 5-40 per cent of the alkali metal soap may be used.  Soaps referred to are sodium stearate and soaps formed from hydroxy stearic acid and keto acids. Lubricating oils specified are mineral oil and synthetic oils such as synthetic esters, glycols, polyglycols and related ethers and acetols.  Metal deactivators, corrosion inhibitors, tackiness agents and viscosity index improvers may be added to the grease.
Patent GB-1528512-A (GB)
Title: Containers and moulds for forming them
IPC: B65D1/02
Filed: 1976-02-02
Abstract: 1528512 Portable containers CONTINENTAL GROUP Inc 2 Feb 1976 [13 Feb 1975] 04047/76 Heading B8D [Also in Division B3] A container bottom comprises a central concave portion 20 joined to the container side wall 14a by an annular convex rim portion 22 in which axially-extending radially-spaced feet 16 are formed, each foot having a radial profile of curved form CDE constituted by a series of tangential arcs CD, DE having separate centres of curvature I and H and preferably of unequal radii of curvature. The lateral margins of adjacent feet merge with the rim portion to form rib portions between respective pairs of feet each having a radial profile of curved form BF, preferably constituted by an arc having a radius of curvature R 4  and tangential with the side wall portion and the central concave portion which is also constituted by an arc AB having a radius of curvature R1 centred on the container axis 10a. In a modification, Fig. 7 (not shown), each foot radial profile is constituted by a series of three tangential arcs BC, CD and DE. As shown, the container is a plastics, e.g. acrylic bottle, and is formed by blow-moulding utilizing a mould matrix, Fig. 5, having an internal profile complementary to bottle bottom described above. Alternatively, the container may be a metal can formed by a metal pressing operation utilizing a female die having an internal surface complementary to the container bottom described above.
Patent GB-495473-A (GB)
Title: Adjustable layer resistance or potentiometer
IPC: H01C1/12
Filed: 1937-02-11
Abstract: 495,473. Variable resistances; resistance coatings and deposits. ELEKTRISCHE GLUHLAMPENFABRIEKEN J. KREMENEZKY AKT.-GES. Feb. 11, 1937, No. 4088. Void. Convention date, Feb. 11, 1936. [Class 37] In a variable resistance in which the resistance comprises a layer of material containing conductive powder such as powdered carbon, metal dust, or pulverized metal compounds mixed with hardenable synthetic resin lac, the sliding contact member is made from the same material as the resistance layer. A non-linear resistance may be formed of sectors of different specific resistances containing different proportions of the conductive powder, in which case the slider is made from the same material as one of the resistance layers. Alternatively the different sectors may have the same composition but different thicknesses, the slider being of the same composition.
Patent GB-282236-A (GB)
Title: Improved cupboard
IPC: A47B77/04
Filed: 1927-02-14
Abstract: 282,236. Marohn, A. H. F. Feb. 14, 1927. Cupboards.-The walls of a cupboard are formed with upper and lower sections hinged together, with the lower sections secured to base 1 so that the upper sections may fold within the space thus en closed to form a smaller cupboard. A detachable top 3 is provided and has detachable hinges 22 by which it can be secured to the lower part 12 of the back of the folded structure, and which, in the extended position, holds the walls rigid, being then secured by a sliding internally tapered clip 20 which embraces co-operating pairs of tapered flanged bars 21 on the side walls and top of the structure respectively.
Patent GB-1163083-A (GB)
Title: Four Terminal Networks.
Inventor: RALPH FRANK
IPC: H03H11/28
Filed: 1966-01-31
Abstract: 1,163,083. Negative impedance network. STANDARD TELEPHONES & CABLES Ltd. 27 Jan., 1967 [31 Jan., 1966], No. 4138/66. Heading H4R. A four-terminal network having a connection from each of one pair of terminals to a corresponding one of the other pair comprises a resistance and a negative impedance in series in one of the connections, a positive impedance connected between the two connections and a negative impedance connected between the two connections, each negative impedance being achieved by a negative impedance converter, and the relative values of the resistance positive, and negative impedances being sochosen that the image impedance of one pair of terminals is R whilst that of the other is Z 0 . The network may be used to interconnect functions of different impedances, e.g. loaded to non-loaded lines or for supplying gain. In an arrangement for matching a left-hand impedance R to an impedance Z 0  (Fig. 1) the series arms are R and - Z 0  and the shunt arms - 2R and 2Z 0  in parallel. The network is analysed with reference to Figs. 2-5 (not shown) and a # network for effecting the same matching is illustrated in Fig. 6. The converter the series circuit should be open circuit stable and the one in the shunt arm short-circuit stable. A known transistor converter suitable for voice frequencies is described with reference to Fig. 7 (not shown), and the connection of such converters is described with reference to Fig. 8 (not shown). An adjustable auto transformer may be included between the two shunt elements for the adjustment of gain.
Patent GB-409104-A (GB)
Title: Improvements in or relating to apparatus for moulding or shaping hats
IPC: A42C1/04
Filed: 1933-02-10
Abstract: 409,104. Moulding or shaping hats. BATTERSBY, F., 21, Nicholl Square, Wood Street, London. Feb. 10, 1933, No. 4174. [Class 63.] Apparatus for shaping the band portion of men's hats comprises a tapered hollow former 1 of metal or other suitable material provided with a flange 2 adapted to rest upon the supports 3 of a gas or electric heater, which comprises a standard 4 and hot plate 5 adapted to fit within the former adjacent the upper end thereof, a cap 8 of heat insulating material being provided to fit over the closed upper end of the former.
Patent GB-378338-A (GB)
Title: An improved trolley for electrically driven vehicles
IPC: H01J19/28
Filed: 1932-02-12
Abstract: 378,338. Lubricating electric trolleywheels. PAILLE, G. REGNAC-, 84, Rue de Marcinelle, Charleroi, Belgium. Feb. 12, 1932, No. 4253. Convention date, Nov. 20, 1931. [Class 12 (iii).] In an electric trolley-wheel 8 mounted on a sleeve 10 running on a fixed axle 2, graphite blocks 11 mounted in recesses in the sleeve are pressed against the axle by springs 12, and the ends of the wheel 8 and sleeve 10 are lubricated by graphite blocks 14 carried by discs 13.