baber/WOPTO huggingface dataset:
Patent GB-448002-A (GB)
Title: Improvements in or relating to screw drivers, rotary spanners and the like
IPC: B25B21/00
Filed: 1935-03-16
Abstract: 448,002. Screwing-up screws, nuts, &c. PASMORE, H. T., 26, Westbourne Avenue, Acton, London. March 16, 1935, No. 8245. [Class 83 (iii)] [See also Group XXXI] Treadle driving - mechanim.- In a rotary spanner, screwdriver, &c., the tool is connected by a flexible shaft to a pedal capable of driving the tool in one direction only for screwing or unscrewing. The device comprises an inverted U-shaped frame 3 for bolting to the underside of a bench &c., and carrying a pivot 5 for a lever 4 which may be oscillated between stops 6, 7 and is normally held by a spring 13 against the stop 6. A toothed quadrant 10 is pivoted at 9 to the lever and carries an arm 11 to which a link 12 from the pedal is attached. The quadrant is adapted to engage a pinion 18 attached to a gear 19 meshing with a pinion 20 whose spindle 21 is secured at 22, Fig. 2, to the core 23 of a flexible shaft. The other end of the shaft 23 is secured to a spindle 26 rotatable in a hand held casing 25 and carrying a bevel gear 27 meshing with a bevel gear 28 on the screw-driver spindle 29. The casing 32 of the flexible shaft is freely rotatable in the casing 25 to allow the screw-driver 30 to be operated at any angle. In operation, depression of the pedal rocks the lever 4 against the stop 7, thus bringing the teeth on the quadrant into mesh with the pinion 18, whereupon further action of the pedal oscillates the quadrant and rotates the tool 30 at a high speed due to the gearing 20 &c. On the return stroke of the pedal the spring 13 oscillates the lever 4 against the stop 6, thus bringing the quadrant out of mesh with the pinion 18 and allowing it to return idly. Stops 15, 16 on the quadrant engage a stop 17 fixed on the frame 3 to limit its movement. For unscrewing, a sleeve 33, Fig. 2, may be applied to the casing 25 and carries a bevel gear 35 engaging the bevel gear 28 so as to rotate a tool 36 in the reverse direction. In modifications, the quadrant may be in constant mesh with the pinion 18 which rotates the gearing through a free wheel, or the quadrant may be replaced by a toothed wheel rotated from the pedal in one direction only through a free wheel, in each case a detent being provided to prevent reverse rotation of the gearing.
Patent GB-1291945-A (GB)
Title: Assemblies of interlinked prefabricated members for forming a pathway
Inventor: DOMNICK ARNO
IPC: E01C9/08
Filed: 1970-02-20
Abstract: 1291945 Slat and lath fabrics A DOMNICK 20 Feb 1970 [28 Feb 1969 13 Aug 1969] 8291/70 Heading D1K [Also in Division El] A collapsible pathway comprises transverse members 1 connected by longitudinal flexible means 5, the members being of inverted channel section with flanges 7, 8 which cover the spaces between the members. Each member has one or two flanges, positioned at the top or bottom of the members. The flexible means, e.g. wire ropes, allow the path to be rolled up.
Patent GB-1008852-A (GB)
Title: Diazotype material
IPC: C07D295/135
Filed: 1963-03-01
Abstract: Diazonium salts of formula <FORM:1008852/C2/1> where R1 is b -hydroxyethyl, b -hydroxypropyl or b ,g -dihydroxy propyl, RII is hydrogen, methoxy or ethoxy and X is an acid radical are prepared when RII is hydrogen by reacting 2-chloro-5-nitrophenol with b -chloro ethyl alcohol, 1-chloro propanol-(2), or 1-chloro-2,3-dihydrocypropane, reacting the product with pyrrolidine, reducing the nitro compound thus produced with either zinc dust or hydrogen and a nickel catalyst and then diazotizing with acidic sodium nitrite. When RII is methoxy or ethoxy, the salts are prepared by reacting hydroquinone-mono-ethyl or - methylether with bromine and reacting the 2 - bromo - 4 - (m)ethoxy - phenol produced with ethylenechlorohydrin under reflux to give 2 - bromo - 4 - (m)ethoxy phenyl-(b  - hydroxyethylether). This compound is nitrated and then reacted with pyrrolidine, reduced to the amine and diarotized as set above.
Patent GB-1458065-A (GB)
Title: Flat electrical cables and methods and machines for producing  such cables
IPC: H01B7/08
Filed: 1974-02-25
Abstract: 1458065 Flat cables CONNECTA 25 Feb 1974 [9 March 1973] 8397/74 Heading H1A A flat electrical cable comprises a group of conductors 10, 11 separated from a further group 20, 21 by insulating strip 4 of a thermosetting synthetic material such as polytetrafluorethylene and enclosed by two further insulating strips 5, 6 which are also of polytetrafluorethylene, the strips having been secured together by pressure. A method of making such a cable comprises distributing the conductors of two or more groups as shown in Fig. 3, interposing insulating strips 40, 41, applying outer insulating strips 5, 6 and compressing the whole assembly to secure the strips together. One group of conductors 30, 31, 32 may first be secured to an outer strip 6, a strip 41 added and followed by a further group of conductors 20, 21, 22, a still further group of conductors 10, 11, 12, is secured to the outer strip 5 and this assembly secured to the conductors 20, 21, 22 with a strip 40 interposed. A machine for producing the cable comprises cylinders 7, 71 for feeding conductors 20, 21 and 10, 11 respectively carried in circumferential grooves, e.g. 71 and rollers 8, 8<SP>1</SP> with circumferential grooves 81, 82, and 81<SP>1</SP>, 82<SP>1</SP> (Fig. 5, not shown) respectively for feeding the outer insulating strips 6 and 5 respectively. Insulating strip 4 is interposed at the gap between the rollers 8, 8<SP>1</SP> where the assembly is compressed and where, when the strips 5 and 6 are of polytetrafluorethylene the temperature, advantageously, is close to 100‹ C. The cable then passes into an oven where the strips are heatsecured at a temperature of more than 330‹ C. Advantageously the cylinders 7 and 7<SP>1</SP> may be provided with ribs e.g. 72 to produce imprints in the strips 5 and 6 respectively for receiving the conductors of the other group and the grooves 81, 82 for example in the roller 8 may be of greater depth than the corresponding grooves 81<SP>1</SP>, 82<SP>1</SP> in the roller 8<SP>1</SP> to take into account the presence of the intermediate strip 4.
Patent GB-699765-A (GB)
Title: Improvements in or relating to carrier wave telephone or like systems
Inventor: HARRISON KENNETH WHITELEY
IPC: H04J1/04
Filed: 1951-04-11
Abstract: 699,765. Multiplex systems. TELEPHONE MANUFACTURING CO., Ltd. April 2, 1952 [April 11, 1951], No. 8436/51. Drawings to Specification. Class 40 (iv). In a carrier multiplex open wire telephone system of at least twelve channels, the different transmitted groups of channels for the two directions of working are each derived from the voice frequency channels by two stages of modulation, of which the first stage employs a plurality of carrier frequencies to form a plurality of similar basic groups of channels and the second employs carriers individual to each of these basic groups to produce sub-groups of channels in the required range. The same terminals may serve both cable and open-wire circuits, and the first modulation stage is then common to both cable and open wire operation; the sub-group carriers of the open wire system for one direction of transmission are the same as the sub-group carriers for the cables, the cable channels comprising upper side-bands and the open wire channels lower side-bands. Four different frequency allocations may be provided for simultaneous operation on four different open-wire circuits over the same route, the subgroup carrier frequencies in one direction being the same for each of the four circuits and two of the circuits containing an extra stage of double modulation to invert the order of the channels.
Patent GB-236286-A (GB)
Title: Improvements in or relating to scotch block devices for stopping pit tubs and other vehicles running on rails
IPC: B61K7/20
Filed: 1924-04-03
Abstract: 236,286. Sheppard, H. B. April 3, 1924. Wheel stops k, retained in position transversely on top of the rail a by a spring m, are connected to a pistonrod j so as to be withdrawn by fluid pressure acting on the piston h. This piston moves in a cylinder d which forms part of a casing c bolted to the sleepers and has a detachable cover p with a vent x. The stop k may be withdrawn by foot pressure, by securing a pedal to a shaft t which has either two slotted arms s engaging lugs r on the rod j or a single arm engaging a recess in the member k.
Patent GB-570087-A (GB)
Title: Improvements in electrical transmission lines
IPC: H01B11/18
Filed: 1943-05-26
Abstract: 570,087. Artificial lines. GENERAL ELECTRIC CO., Ltd., and DUNHAM, C. R. May 26, 1943, No. 8451. [Class 40 (iii)] An artificial line having distributed capacitance inductance comprises a number of coaxial tubular conductors 8, 16 of progressively increasing cross - section, all connected together, with intervening helical windings 11, 18 also connected together. The arrangement simulates a co-axial line, the helical windings acting as the inner conductor and the tubular conductors as the outer, and can be used in known manner for the production of rectangular pulses or for introducing delay. In the construction shown, the tubular conductors 8, 16 are sheets of copper foil and the windings 11, 18 comprise three copper wires and one cotton thread laid side by side, the copper sheets and windings being separated by layers of paper and the whole being mounted on an insulating tube 6, which in the example given is 4 inches long. The windings are preferably connected in series, but if a line of high capacitance is required a parallel connection may be desirable. The tubes may be of other than circular cross-section, and the interior of the tube 6 may be used to house other apparatus.
Patent GB-597522-A (GB)
Title: Improvements in or relating to gas burners
IPC: F23D14/60
Filed: 1945-04-05
Abstract: 597,522. Gas burners. BOOL, E. D., and BRIDGE, J. F. April 5, 1945, No. 8462. [Class 75 (i)] A gas burner comprises an air supply tube 1 adjustable by a screw 12 in a, surrounding tube 5 connected at a flange 13 to a gas supply pipe. The conical inner surface 7 of the outlet of the tube 5 is inclined more steeply than the conical outer surface of the tube 1 and is flared outwardly at its end 10. The bore of the tube 1 is gradually reduced towards its outer end 3 to terminate in a short cylindrical portion. The screw 12 may have threaded portions of differing pitches engaging tapped holes in lugs 14, 15 on the tubes 5, 1. The air flow through the tube 1 may be induced by the gas jet or the tube 1 may be connected to a blower or compressor. Specification 199,060, [Class 75 (i)], is referred to.
Patent GB-1207899-A (GB)
Title: Electroconductive sheet material
IPC: D21H17/09
Filed: 1968-02-21
Abstract: 1,207,899. Paper. MONSANTO CO. 21 Feb., 1968 [21 Feb., 1967], No. 8465/68. Heading D2B. [Also in Division H1] Electroconductive sheet material for use in a photo-conductive or electro-conductive reproducing, recording or printing process, comprises a fibrous base sheet having dispersed therein a mixture of a sulphonated polymer of a vinylaromatic or a water-soluble salt thereof with a water-soluble salt of sulphuric or sulphamic acid. The base sheet is preferably a paper of cellulosic or synthetic fibres, the polymer a sulphonated polystyrene, and the salts of alkali metals, ammonia or amines, particularly alkanolamines. The additives may be added to the pulp before sheeting to the nearly dry paper after its formation, or to finished paper as a solution in water or methanol. They may be used in association with pigments, opacifiers, fillers, extenders, dyes and sizes.
Patent GB-845637-A (GB)
Title: Tire treating apparatus
IPC: H01J61/00
Filed: 1959-03-12
Abstract: 845,637. Tyre-moulding apparatus. McNEIL MACHINE & ENGINEERING CO. March 12, 1959 [July 28, 1958], No. 8559/59. Class 87(2). Apparatus for treating nylon corded tyres during cooling following vulcanisation comprises a support which holds the tyre vertically until it is engaged around the beads by closure discs, means to inflate the tyre, and means to rotate the inflated tyre when it is supported by the discs during the cooling period. Air pressure is applied to the lower end of cylinder 25 to retract rod 110 and rotate cam 52 and cam 50 (not shown) which actuates links 131, 135, 137, 138, causing closure discs 80 to move to clamp the beads of two nylon corded tyres (one only shown) between discs 60, 80. The rotation of the cams also withdraws stirrup supports 35 from the tyres. Simultaneously compressed air is supplied between the tyres and air bags therein via passages in discs 80, and as the tyres are rotated by driven belts 155 in contact with the treads, water is sprayed on them from pipes 140. After cooling the pressure in the tyre is released, the water turned off, and pressure applied to the top of cylinder 25 to retract discs 80 and raise stirrups 35. After the tyres have been placed on the stirrups the entire operation may be automatic. In an alternative embodiment the tyres are rotated by the outer closure discs.
Patent GB-395660-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J29/48
Filed: 1933-03-22
Abstract: 395,660. Cathode-ray tubes. INTERNATIONAL, GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin:) March 22, 1933, No. 8672. Convention date, March 22, 1932. [Class 39 (i).] In a gas-filled tube an electrode, such as a disc 6 with a central aperture, is disposed between a Wehnelt cylinder 5 and a thermionic cathode 10 forming a concentrated source of electrons. The cathode consists of a nickel tube 7 containing a heating wire 8 separated by a partition 9 from a small cylinder 10 coated with barium oxide, the end, of the tube 7 being closed by a cap 11 having an aperture smaller than that in the disc 6. The disc is connected directly with the anode. Dimensions of the cathode and the distances between the electrodes are given.
Patent GB-1103585-A (GB)
Title: Improvements in or relating to the processing of clay
Inventor: CUNDY EDWIN KENNETH
IPC: B03D1/06
Filed: 1964-03-02
Abstract: Clay, e.g. kaolin or china clay, is treated to remove titanium mineral impurities by mixing with a suspension of the clay in water a flotation assistant consisting of a water-soluble salt of an alkaline earth (including magnesium) metal or a metal having a sp. gr. greater than 4, an alkali to raise the pH to about 9, a collector for impurities, a frothing agent and subjecting the suspension to a froth flotation process.  The suspension may first be deflocculated by adding a deflocculating agent, e.g. sodium silicate, and after adding all the reagents the suspension may be conditioned by agitation. Before flotation is commenced the suspension may be diluted with water to a solids content of 15-20% w./v.  The collector for impurities may be oleic acid, the frothing agent pine oil and the alkali ammonium hydroxide.  The compounds specified as flotation assistants are water-soluble salts of Ca, Sr, Cu11, Fc11, Pb11, Mn11, and Zn and especially lead acetate, lead nitrate and barium chloride.ALSO:Clay e.g. kaolin or china clay, is treated to remove titanium mineral impurities by mixing with a suspension of the clay in water a flotation assistant consisting of a water soluble salt of an alkaline earth (including magnesium) metal or a metal having a sp.gr. greater than 4, an alkali to raise the pH to about 9, a collector for impurities, a frothing agent and subjecting the suspension to a froth flotation process.  The suspension may first be deflocculated by adding a deflocculating agent e.g. sodium silicate, and after adding all the reagents the suspension may be conditioned by agitation.  Before flotation is commenced the suspension may be diluted with water to a solids content of 15-20% w/v.  The collector for impurities may be oleic acid, the frothing agent pine oil and the alkali ammonium hydroxide.  The compounds specified as flotation assistants are water soluble salts of Ca, Sr, CuII, FcII, PbII, MnII, and Zn and especially lead acetate, lead nitrate and barium chloride.
Patent GB-828248-A (GB)
Title: Improvements in turbine and compressor blade cover assembly
IPC: F01D5/22
Filed: 1957-03-18
Abstract: 828,248. Turbine and compressor blade assemblies. GENERAL ELECTRIC CO. March 18, 1957 [April 16, 1956], No. 8791/57. Class 110 (3). In a bladed turbine or compressor rotor assembly in which an arcuate shroud band connects the tips of a group of blades, the shroud band is provided with at least three radiallyprojecting, circumferentially-extending ribs and each blade is provided with at least two tenons extending radially from the tip thereof, the shroud band having openings between the ribs to receive the tenons, and the blade tenons being secured to the ribs on the shroud band. The shroud band 1 is provided with three radiallyprojecting, circumferentially-extending ribs 1b and pairs of openings 1c are provided between the ribs to receive the tenons 2b at the tips 2a of the rotor blades 2. The openings 1c are of the same width as the blade tenons but they are somewhat longer in the circumferential direction than the blade tenons. Axially-extending pins 3 are passed through aligned holes in the tenons and ribs, the ends of the pins being riveted over.
Patent GB-400507-A (GB)
Title: Improvements in sheet metal casings for electric motors
IPC: H02K7/08
Filed: 1933-03-23
Abstract: 400,507. Motor casings. SKODA WORKS, PLZEN, 37n, Jungmannova, Prague. March 23, 1933, No. 8831. Convention date, March 25, 1932.' [Class 35.] The sheet-metal casing of a small or medium-size alternating-current motor supported on feet 7 is integral with the bearing cover at the end 4 and the bearing 5 at the driving end is mounted in a stiff plate 6 connected with the casing 3 by a wall 8 so that bending forces applied to the pulley 2 are taken up by the plate.
Patent GB-199173-A (GB)
Title: Improvements in and connected with apparatus for heating liquid fuel for the burners of liquid fuel fired steam generators
IPC: F23D11/44
Filed: 1922-03-28
Abstract: 199,173. Ferguson, J. J., and Timpson, F. M. March 28, 1922. Oil supply.-Oil on its way to the burners of a steam generator passes through a coil K in water or steam in a tank A heated by a lamp H. Additional means for heating or maintaining the temperature is provided either by means of a steam jacket E or by means of a second coil in the tank A, through which steam is circulated.
Patent GB-1432310-A (GB)
Title: Solid state switches
IPC: H01H36/00
Filed: 1974-02-27
Abstract: 1432310 Controlled-non-linear inductors ILLINOIS TOOL WORKS Inc 27 Feb 1974 [26 March 1973] 8933/74 Heading H3X [Also in Division H2] A switch having the inherent properties of a half wave rectifier with a reversible direction of rectification comprises a saturable transformer, Figs. 1 and 2, having primary and secondary windings 12, 13 and a ring core 11, the core being locally magnetized to saturation in either one direction or the other according to the position of a linearly movable magnet 14 formed with consequent poles. With bipolar pulses applied to the primary winding and the core locally saturated in one direction only, half-wave desaturating pulses are induced in the secondary winding. When the direction of the local saturation is reversed by displacing the magnet the induced pulses are solely of reversed polarity. The output of the secondary winding is used to control a bi-stable circuit 33, Fig. 5, according to the polarity of the induced pulses, one input S of the bi-stable being directly connected to the secondary winding while the other input R is connected through an inverter circuit 37. Feedback from the bi-stable circuit outputs Q, Q is provided to the respective input channels.
Patent GB-683418-A (GB)
Title: Improvements in or relating to multiple stage centrifugal drums for the treatment ofliquids
IPC: B04B5/06
Filed: 1950-04-12
Abstract: 683,418. Centrifugal machines. WESTFALIA SEPARATOR AKT -GES. April 12, 1950 [Oct. 6, 1948], No. 8956/50. Class 23 In a multi-stage centrifugal drum for continuously treating liquids for extraction and wherein each stage involves mixing and separation, one stage of the drum either has a greater cubic content than any one of the other stages or is provided with separating plates such as conical discs therein or both in combination whereby an exact as possible a separation is effected in one stage whilst only an imperfect separation is obtained in the other stages. The centrifugal drum has separating chambers 1, 2, 3 each containing a distributer 11, 13, 15 and a separating plate, 12, 14, 16 respectively. A stationary shaft 17 has stripping dscs 18, 19, 20 for a liquid of light specific gravity, such as butyl acetate, and stripping discs 21, 22, 23 for a heavy liquid, such as phenolated water. The passage of the light and heavy liquids through the drum are shown by the broken and continuous lines respectively. Phenolated water is fed to the drum through a passage 25 and mixes with the butyl acetate leaving the chamber 2. On separation in the chamber 1 the water flows to the stripping disc 21, is mixed with butyl acetate leaving the chamber 3 and discharged to the chamber 2. Water separated in the chamber 2 is finally mixed with fresh butyl acetate admitted through a passage 24, separated in the chamber 3 and discharged free from phenol through the stripping disc 23 and a passage 26. The phenol-butyl acetate mixture is discharged from the chamber 1 through the stripping disc 18 and a passage 27. Several such drums may be arranged in series wherein the first and the last stage have insertion plates or increased capacity. Again such a drum may be combined with a single-stage drum is of large cubic capacity or provided with separating plates or both.
Patent GB-1280782-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
Inventor: APEL ALOYS
IPC: A44B19/40
Filed: 1971-04-07
Abstract: 1280782 Sliding clasp fastener SOLIDOR HEILIGENSTADT KOMBINAT FUR HARTKURZWAREN VEB 7 April 1971 8963/71 Heading E2S A sliding clasp fastener has two rows of helical-shaped closure links in the form of loops 4, 5 made of plastics material each row having links 9 which in the zone of the closure heads 6 extend at right angles to the plane of the fastener closure. Every nth loop 5, where n is 2 or more, is shortened and the adjoining loop arms of a row of links touch one another fully and the row of links is attached to the supporting tape 1 by at least two longitudinal sewing seams 7, 8 one of which 7 is arranged outside the loops 5 in such a manner that it only passes through the longer loops 4. Advantageously seam 7 partly covers the shortened loops 5.
Patent GB-1044074-A (GB)
Title: Improvements relating to excavators
Inventor: BROCKLEBANK NORMAN
IPC: E01C19/46
Filed: 1964-03-03
Abstract: 1,044,074. Vehicle undercarriages. PRIESTMAN BROS. Ltd. June 2, 1965 [March 3, 1964], No. 8964/64, Heading B7D. [Also in Division E1] In order that a self-propelled excavator may move along roads more quickly than is possible with the normal propulsion means, particularly track-laying propulsion means, of the excavator it is supported clear of the ground at one end by one or more wheeled bogies detachably secured to the underside of the chassis of the excavator and at the other end by the front end equipment of the excavator bearing down on a towing vehicle.