baber/WOPTO huggingface dataset:
Patent GB-233300-A (GB)
IPC: A44B19/04
Filed: 1924-12-31
Abstract: 233,300. Winterhalter, M. May 1, 1924, [Convention date]. Sliding-clasp fastenings.- In fastenings for connecting sheets of fabric &c. of the kind in which a series of interlocking elements on the edges of the parts to be secured together are engaged and disengaged by a sliding member, the fastening elements comprise plates a, Figs. 2 (Cancelled), 4, 5, with grooves b, Fig. 2 (Cancelled). at one side and corresponding ribs at the other side which are adapted to interlock with the grooves of an adjacent plate. The grooves and ribs may be sinuous or may cross one another, or the grooves. b, Fig. 4, with corresponding ribs may be formed in a hook-shaped portion e of the plate, or projections e<2>, f, Fig. 5, may be formed therein; in every case, however, the mutual engagement must take place over the whole width of the plates. To convert the plates to the fabric, the edges of the latter are introduced into slits d in the plates and clamped therein.
Patent GB-176842-A (GB)
Title: Improvements in propellers and fans
IPC: B63H1/12
Filed: 1921-07-04
Abstract: 176,842. Oliver, R. G. July 4, 1921. Screw propellers.-The blades of a screw propeller, fan, or the like are constructed with slots which curve in cross-section and longitudinally, having overlapping edges, and in which the several parts fall within the configuration of an ordinary blade. The slots may extend to the tips or may be bridged at or near the tips. The blade with three parts a, b, c, Fig. 1, has two slots o which are curved longitudinally and in cross-section, alternative sections being as shown in Figs. 2 and 4.
Patent GB-753120-A (GB)
Title: Improvements in or relating to an aircraft air-conditioning system
IPC: B64D13/06
Filed: 1954-11-02
Abstract: 753,120. Ventilation. UNITED AIRCRAFT CORPORATION. Nov. 2,1954 [Nov. 16, 1953], No. 31645/54. Class 137. An air-conditioning system for an aircraft cabin is arranged also to supply air at a different temperature to another compartment, e.g. the air is admitted at 70‹ F. and withdrawn at 140‹ F., the air for this compartment being heated by admixture with recirculated air withdrawn therefrom. As shown, the compressor 10 supplies air to the cabin 15 either through a pipe 12 and valve 21, or through a cooling system comprising a heat-exchanger 13 and turbine 17. The valve is controlled either manually or by a thermostat 22, to determine the rates of mixing of the hot and cold air streams. The other compartment 24 is connected to the cold air supply pipe 18 through a pipe 27 regulated by a valve 32 controlled by a thermostat 34 in the discharge duct 26. The recirculated air is boosted by a fan 28, which counteracts the fall in pressure in the compartment 24, and the heat engendered by the fan is removed in a heat exchanger 29 before the recirculated air is admitted to the inlet duct 25 through a valve 31- which is controlled by a thermostat 33. The turbine 17 may drive the fan 28 and also a fan 20 for the coolant air for the heat-exchanger 13.
Patent GB-979814-A (GB)
Title: Improvements relating to phase shifting circuits
Inventor: EMBREY DEREK MORRIS
IPC: H03H11/20
Filed: 1961-09-04
Abstract: 979,814. Phase shifting. ELECTRIC CONSTRUCTION CO. Ltd. Aug. 17, 1962 [Sept. 4, 1961], No. 31726/61. Heading H2F. A phase shifting network comprises a bridge ABCD the arms CD, DB being equal resistors or inductors 26, 28, the arm BA being an inductor or capacitor, and the arm CA being resistive and comprising a full wave bridge of diodes 20 in series with a transistor 22. Output is derived across the diagonol DA on lines 12, 14, and by controlling the transistor by a signal on lines 24 the resistance of the arm CA and hence the phase shift may be varied. As shown, the inductors 26, 28 are the halves of a centre tapped secondary winding of an input transformer. In alternative arrangements the capacitor 16 may be replaced by an inductor, and the emitter and base connections of the transistor may be interchanged. The output at 12, 14 may feed a transformer having a centre tapped secondary winding, and may control a thyratron or S.C.R. As shown in Fig. 6, three similar circuits may be combined to provide phase shifting for all the phases of a three-phase supply by controlling a single common transistor. The pairs of windings 26, 28, 26<SP>1</SP>, 28<SP>1</SP>, 26<SP>11</SP>, 28<SP>11</SP>, may be windings on a three-phase transformer or windings of a three-phase generator.
Patent GB-1239824-A (GB)
Title: Magnetic circuit element
IPC: G11C5/02
Filed: 1968-07-03
Abstract: 1,239,824. Printed circuits. THOMSON CSF. 3 July, 1968 [4 July, 1967], No. 31833/68. Heading H1R. [Also in Division H3] A matrix or other magnetic storage arrangement comprises an apertured ferromagnetic plate with printed conductors on the two surfaces and in the apertures, the arrangement being formed from an apertured ferromagnetic plate sandwiched between layers of conductive material, e.g. copper, by electroplating a predetermined pattern of gold conductors which extend through the apertures, and then dissolving away the conductive material and replacing it by an insulating material which supports the pattern of gold conductors remaining. The apertures 2, Fig. 5, may be formed by etching a sandwich structure comprising a ferromagnetic plate 10 and copper layers 20, which is selectively coated with a layer of photosensitive material 40. Selected areas of copper are then bared and used as an anode for electrolytically depositing a pattern of gold conductors 3A as shown in Fig. 7. Total removal of the copper is effected by dissolving, and the web of gold conductors remaining is supported by introducing a fluid photosensitive resin 80, Fig. 9. A further etching process provides enlarged apertures 100, Fig. 2, and optional selective removal of part of the photosensitive resin 80. Modifications include the two stage etching of the apertures to remove the copper and ferromagnetic material in turn, and applying the copper layers after the apertures are formed in the ferromagnetic material. A further modification is the deposition of resin capsules 600, Fig. 15, by photoengraving methods at the location of the apertures to be formed. The remainder of the plate is then built up by depositing metal 200 and the apertures are formed after dissolving the capsules. Another method uses an initially apertured plate which is coated on both surfaces and through the holes with copper, Fig. 12 (not shown).
Patent GB-165473-A (GB)
Title: Improvements in thermostatic apparatus for regulating the feed-water supply to steam generators and for other purposes
IPC: F22D5/14
Filed: 1919-12-20
Abstract: 165,473. Woodroffe, F. K., Allen, K. M., Allen, D. M. L., Allen, V. M. B., and Allen, T. W., (Representatives of Allen, M.). Dec. 20, 1919. Feed-water, control. trolling. - In thermostatic apparatus for controlling the feedsllpply to boilers &c., of the kind comprising oppositely inclined tubes in communication with the boiler and operating the feedvalve by the sum of the movements caused by the expansion and contraction of the tubes, the tubes are arranged to cross each other at the mean boiler water-level, and the upper ends of the tubes are connected together and to the feed valve. The movements of the inclined tubes a, a', Fig. 1, are communicated to the valve-rod o. through pivoted links c, e<1> and a bell-crank leverf. A rod g between the upper ends of the links is adjustably connected to one of the links e<1>, and is pivoted to the other by the pivot pin f' of the bell-crank lever. The tube a is secured to the short arm of the lever, and the tube a<1> to the upper end of the link e<1>. The cross-bar b at the 'base of the tubes may be replaced by a tubular reservoir in communication with the boiler, water space, the tubes opening into the ends of the reservoir. The reservoir may be formed with gills or with a cooling-jacket. In addition to the thermostatic control, the opening of the feed-valve may be controlled by the pressure of the feed-supply by means of a piston device l, Fig. 6, the feed pressure acting through a pipe m<1> on one side of the piston and the boiler pressure acting through a pipe m on the other side. The feed pressure is opposed by a spring l<1>, and presses the piston-rod against the long arm of a lever n pivoted to the link e. A rod h adjustably connected to the short arm of the lever is pivoted to the short arm of a second bell-crank lever f<2> on the end of the bell-crank lever f. The valve-rod o is connected to the lever f<2>. In a modification, the lever n is pivoted to the link e<1>, and its short arm adjustably connected to the rod g. According to the Provisional Specification, the thermostatic tubes may operate the steam-valve of a feed-pump, or may be used for regulating the temperature of liquids or gases by admixture with other liquids or gases of different temperatures.
Patent GB-1352735-A (GB)
Title: Railway system
IPC: A63H18/08
Filed: 1971-07-08
Abstract: 1352735 Railway systems DEMAG AG 8 July 1971 [9 July 1970] 32151/71 Heading B7L [Also in Division E1] A railway system (conventional or overhead) comprises at least two trackway sections which include main support rails 1 and meet at a junction, and auxiliary support rails 2 and guideways 3 at least in the vicinity of the junction, in combination with a wheel frame 8 having main and auxiliary support wheels 5, 6 at each side of the frame engageable with the main and auxiliary support rails respectively and at least one guide (flange 7a of wheel 6) which is displaceable transversely of the wheel frame and is engageable with a guideway to direct the frame through the junction. In the embodiments shown in Figs. 1, 2 and 5 the auxiliary wheels 6 are mounted on the shafts 4 of the main wheels 5 and are displaceable in the axial direction of the shaft, each wheel 6 having a flange 7a which serves as the guide and can co-operate with the guideway or guide rail 3. If the flange 7a of one of the auxiliary wheels 6 is caused to enter the channel between a rail 2 and a guide rail 3 then the subsequent course of the vehicle at a junction is determined. As seen in Fig. 2, the left hand auxiliary wheel is entrapped in the channel and the vehicle will therefore move on to the curved trackway section whereas in Fig. 5, the right hand wheel is entrapped and the vehicle will carry on moving along the straight trackway section, in both cases the wheels 6 also providing support for the vehicle as it passes over the gaps in the track at the junction. To safeguard against accidents occurring the wheels 6 are linked together so that one or other of the wheels must always occupy the outer position. Wheels 10 are also provided on the frame 8 to reduce oscillation on bends. In the embodiment shown in Fig. 7, the main and auxiliary support wheels 5, 6 are rigidly attached to each other via a flange 5a, the guiding of the vehicle being achieved by means of a disc-like guide wheel 7b rotatable about a horizontal axis which wheel is transversely displaceable and can engage guideways 3a, 3b and 3c in an overhanging guide rail 3. The disc-like wheel 7b may be replaced by guide rollers (7c) rotatable about a vertical axis (12) Fig. 8 (not shown).
Patent GB-1194733-A (GB)
Title: Furnace for Heating Reactant Fluids
IPC: C10G9/20
Filed: 1967-07-12
Abstract: 1,194,733. Furnaces for pyrolysis. PULLMAN Inc. 12 July, 1967 [26 Aug., 1966], No. 32173/67. Heading C5E. [Also in Division F4] A fluid is heated for cracking or pyrolysis in a tubulous furnace having a preheating section heated by convection and a radiant section divided into chambers 24a, 24b, 24c by walls 21 extending the full height of the section. Each chamber has vertical tube banks equally spaced from opposed radiant walls 21 which are heated by burners 34, and is connected by a flue passage leading from a bottom outlet 40 to the common convection section 28. Burners 42 in the flue passage increase the gas temperature in the convection preheating section. This arrangement enables the preheat and heating in each pass to be closely controlled.
Patent GB-266679-A (GB)
Title: Improvements in electric glow discharge protection
IPC: H01B17/28
Filed: 1926-12-20
Abstract: 266,679. Imhof, A., and Micafil Akt.- Ges. Werke f³r Elektro-Isolation. Feb. 25, 1926, [Convention date]. Terminals, mounting. - In a glow discharge protection arrangement for bushing insulators and cables with wound dielectrics the wound insulation a (e.g. paper or like) has a metal foil insertion d with a strip extension e wound with the insulation and connected to the outer cover c as by a metal binding f and metal ring g. The cable is mounted in the cover or sleeve c by cement b.
Patent GB-219829-A (GB)
Title: Improvements in and relating to riveters
IPC: B21J15/26
Filed: 1923-09-17
Abstract: 219,829. Bowker, E., and Boulais, A. E. Sept. 17, 1923. Spinning yarns, apparatus for.-A bobbindriving gear 26 in a flange 34 of which a stud 35 is to be riveted, is mounted on a spindle 24 which is adjustable without rotation in a longitudinal slot in the bed 1, a nut 30 and screwed handle 32 being fitted to clamp the spindle in the adjusted position. An anvil 20, slotted to receive the head of the stud 35 is secured to the bed, one or more slots of graded depths being provided in the anvil so that stud-heads of varying thickness may be accommodated. The snap 6 is pivoted at 8 and spring-pressed at 12 and is actuated by a hammer-operated striking-pin 15 which is guided in a block 16 secured to, or integral with, the part 3 of the frame. The working surface of the snap is serrated by forming concentric circular grooves thereon.
Patent GB-363057-A (GB)
Title: Improvements in the manufacture of rollers for relief printing
IPC: B41C1/18
Filed: 1930-10-28
Abstract: 363,057. Moulding printing rollers. CHERTEMPS, C. A., 7 ter, Avenue de St.- Mande, Paris. Oct. 28, 1930, No. 32311. Convention date, Nov. 12, 1929. [Class 87 (ii).] Cylinders for printing on paper or fabrics are formed with a relief printing-surface of plastic material composed of glycerine and fish glue, which is cast in situ upon a pasteboard cylinder mounted on a metal tube. The tube 1, Fig. 1, is formed with end-pieces 2, 3 connected by webs 4, and the body 5 of the cylinder consists of compressed pasteboard which is either built up from rings or moulded from pulp, and may be formed with recesses 5<2>, Fig. 3. In order to form the printing surface, the cylinder is enclosed in a two-part cylindrical mould 17, within which a copper plate bearing the printing matter in intaglio is secured, and the plastic material is injected into the space between the copper plate and the pasteboard. The plastic material is injected through a flexible hose terminating in a nozzle 8, and is conducted into position by radial passages in a disc 6, which is applied to one end of the cylinder. An air-cock is provided on the endpiece 3, to allow the exit of air. Before the injection process, the cylinder is mounted on a shaft 9, having a disc 11 at one end, and a similar disc 14 is placed at the opposite end. The discs 11, 14, which are provided with washer-rings of reinforced leather, project into the mould and serve to hold the copper plate in position. Screws 15, 16 hold the discs 11, 14 in position within the mould. To render the surface of the copper plate continuous, its edges are engaged by the lower end of a bar 20, Fig. 5, of inverted T-shape in cross section, which is drawn upwards so as to grip the edges of the plate. After the moulding operation, the cylinder is taken out of the mould, and the disc 14 and shaft 9 are removed. The cylinder may then be mounted on a printing-machine. Grooves 13, 25 in the disc 6 and end-piece 3 enable the cylinder to be handled, and serve to receive the ink scraped off during printing. The cylinder may be turned down in a lathe, and a new printing-surface moulded upon it.
Patent GB-1154312-A (GB)
Title: Improvements in or relating to Railway Track Jacking Devices
Inventor: STEWART JOHN KENNETH
IPC: E01B29/04
Filed: 1965-07-28
Abstract: 1,154,312. Rail lifting apparatus. CANRON Ltd. - CANRON LIMITEE. 21 July, 1966 [28 July, 1965], No. 32328/65. Heading E1G. The track gripping magnet of a rail lifting apparatus has its magnetic flux controlled relative to the force exerted by the lifting jack. The magnet is preferably cantilevered in front of a tamping machine with hydraulic jacking means on the rear axle; the flux is made proportional to the hydraulic pressure in the jack. In another embodiment, the hydraulic jack acts directly to raise the magnet.
Patent GB-521113-A (GB)
Title: Improvements in or relating to the supply of ink to duplicating apparatus
IPC: B41L13/18
Filed: 1938-11-08
Abstract: 521,113. Duplicating-apparatus. ELLAM, F. Nov. 8, 1938, No., 32400. [Class 100 (ii)] Inking -apparatus.-The supply of ink to the rotary drum b of a duplicating- apparatus is controlled automatically by means of a number of movable U-shaped members t fitted with rubber pads u which engage the inked internal surface of the drum, and are moved by friction when the surface is well supplied with ink. This movement may act on valves to cut off the supply of ink from containers a to the distributing drums q, r, but as shown the members u act on pivoted members w formed with friction pads for controlling cam-actuated plungers d of pumps which feed the ink through valves m, o, to an outlet pipe p, or the member w may be fitted with cross pieces y which engage over the plungers d and prevent their movement.
Patent GB-340079-A (GB)
Title: Improvements in or relating to drinking glasses or the like
IPC: A47G23/032
Filed: 1929-10-25
Abstract: 340,079. Boutcher, E. H., (Boutcher, C. G.). Oct. 25, 1929. Drinking-vessels; mats.-An absorbent drip-catching device, for drinking vessels is formed of an envelope or receptacle having an opening adapted to fold around the base of the vessel. The wineglass drip - catcher shown in Fig. 1 comprises an envelope b of blotting paper provided with a slit b<1> extending from an open edge b<3> to a central opening b<2>. The lower part of the envelope may be of stiff paper. Fig. 4 shows another construction wherein the absorbent material b is corrugated to make it grip the article; the material may also be provided with a stiffening insertion or device so that the envelope pad clips the base of the glass.
Patent GB-199407-A (GB)
Title: An improved instrument for opening sheet metal receptacles, adapted for other purposes
IPC: B67B7/46
Filed: 1922-06-15
Abstract: 199,407. Brown, F. A. J. June 15, 1922. Opening by cutting.- A canopener comprises a cutting and piercing member b and a guide member c so riveted to the shouldered lower end of a handle stem a' as to lie parallel to each other, and both being extended laterally at their roots or bases in one or both directions to form a support for rocking the device during cutting. The T-shaped cutter part b is formed with chamfered cutting edges b<4> tapering to a piercer point b<3>. The guide member is both longer and wider than the cutter and is shown chamfered off at the lower end to serve as a screwdriver. The rear face of this part along the edge c<3> is also formed into a cutting edge. Instead of being on the outer faces of the parts, the chamfered cutting edges b<4>, c<3> may be on the inside, the outer faces 'being flat. The instrument may have a T-shaped handle one end of which may be formed as a hammer and the other as a screwdriver or cork-screw.
Patent GB-189785-A (GB)
Title: Improvements in or relating to machines for sowing seeds
IPC: A01C7/10
Filed: 1922-11-28
Abstract: 189,785. Thomas, M. J. C. M. Nov. 28, 1922. Seed distributors comprise a hopper 4 having an aperture at the base in which one or more distributor plates 7, Fig. 4, are fitted, the openings 8 in these plates being closed periodically by a flap 11 hinged on a shaft 12. The flap, which swings open under the effect of gravity until it gears against a stop which is adjustable by a hand-lever 38, is intermittently operated to close the said outlets by a spring plunger 23 reciprocated by a bell-crank lever 22 receiving its motion from a cam on the wheel axle. Several cams are fitted on the axle, any one of which may be used to operate the bell-crank. The flap 11 may be moved to its closed position by pulling a cord 45 The distributing apertures 8 are provided with short outward flanges 16 and plates 14 may be lowered to put any desired number of the apertures out of operation. The seeds fall into hoppers 15 at the top of shoots 5 which may be adjusted transversely of the distributor along a shaft 50 or removed altogether. Baffles 40 are arranged in the shoots to ensure a steady flow of seeds to the coulters. A hand-lever 51 lifts all the shoots simultaneously when required for transport. Each coulter has a double nose 43, 44, and carries seed-covering plates 42. For sowing in patches the shoots 5 are replaced by smooth vertical shoots, and for broadcasting the coulters at the bottom of the shoots 5 are replaced by small convex blades on to which the seeds fall. The hopper may be provided with detachable partitions 55 to confine the seeds to compartments above the active openings in the distributor. The plates 7 may be replaced by similar plates having a different number of openings.
Patent GB-154161-A (GB)
Title: Improvements in and relating to centrifugal pumps
IPC: F04D29/22
Filed: 1920-11-18
Abstract: 154,161. Aktieselskapet Cellulosepatenter. March 14, 1917, [Convention date]. Rotary-tube pumps.- The separate fluid channels 2 in the rotor of a centrifugal pump increase in cross-section towards the periphery where they cover practically the whole circumference of the rotor. The outlet from the rotor is a continuous narrow circumferential slit 5 of considerably less cross-section than the pumping channels. Guide-vanes 6 conduct the fluid to the spiral outlet 7.
Patent GB-415392-A (GB)
Title: Improvements in and relating to boron carbide and method of making the same
IPC: C01B31/36
Filed: 1932-11-18
Abstract: A boron carbide having the formula B4C is prepared by heating to a temperature exceeding 2000 DEG  C. a mixture consisting of boron oxide and carbon in the proportions required by the equation 2B2O3 + 7C = B4C + 6CO.  Temperatures of 2000--2600 DEG  C. say 2400 DEG  C. are preferably employed.  Anhydrous boron oxide obtained by dehydrating boric acid is mixed with carbon in the form of petroleum coke and the mixture is packed into an electric resistance furnace around a resistance conductor of carbon.  Sawdust or kerosene oil may be added to the charge to produce reducing gases, to impart porosity or to displace oxygen and nitrogen.  The central zone of the furnace is adjusted to a temperature exceeding 2000 DEG  C., say 2400 DEG  C. The temperature of the mixture is progressively raised and a cavity forms in the centre of the furnace separating the charge from the carbon resistance.  The boron carbide forms in a zone outside this cavity, being surrounded by zones containing the partially converted and finally the unconverted mixture.  An atmosphere of carbon monoxide is preferably maintained in the charge.  The starting materials should preferably be freed from iron, aluminium, silicon and other detrimental impurities.  The boron carbide may be employed as an abrasive.
Patent GB-788128-A (GB)
Title: Carrier for opened paint and like containers
IPC: B44D3/14
Filed: 1955-11-16
Abstract: 788,128. Handles or carriers for cans. CUMINS, S. H. Sept. 7, 1956 [Nov. 16, 1955], No. 32761/55. Classes 66 and 133. A carrier for opened paint and like tins comprises a V or U-shaped spring wire 2, Fig. 1, having one or more integral coils 1 at the junction of the two limbs to urge lugs 3 at the ends of the limbs beneath the lid seating 4 of the container, one end of the wire being also bent inwardly as at 5 to form a brush rest and scraper. The lugs 3a in Fig. 5 are of hook shape so that they engage both the upper and the underside of the seating 4.