baber/WOPTO huggingface dataset:
Patent GB-358145-A (GB)
Title: Improvements in ultra high frequency electronic oscillators
IPC: H01J25/68
Filed: 1930-07-10
Abstract: 358,145. Valve generating, modulating, and amplifying circuits. HOLLMANN, H. E., 54, Berliner Strasse, Charlottenburg, Berlin. July 10, 1930, No. 20946. Convention date, July 10, 1929. [Class 40 (v).] Relates to ultra-short wave oscillators of the kind in which the wave frequency is dependent on the speed of electronic oscillations within the valve, and consists in the inclusion in the plate circuit of an oscillatory circuit tuned to a comparatively low or audio frequency, which circuit is maintained in oscillation owing to a negative-resistance characteristic of the plate circuit, and serves to modulate the generated wave. The valve has its grid g maintained positive by a battery Eg, and its plate a slightly negative by a potentiometer p. The parallel wires connected to plate and grid are bridged by a condenser C connected between the halves l<1> of an aerial or radiator. The oscillatory circuit o is connected in the plate circuit beyond the chokes d<1> which exclude the short waves from the circuit o and the batteries &c. By suitable adjustment of the length d of the wires l, the plate circuit is given a negative-resistance characteristic, which enables it to maintain oscillations in the circuit o ; and a modulated wave is thus radiated from the aerial l<1>. In reception, the valve is kept in weak oscillation, and the circuit o causes the receiver to act similarly to a supergenerative receiver, enabling the signals to be heard in the telephones T.
Patent GB-188389-A (GB)
Title: Improvements in horse-shoes
IPC: A01L3/02
Filed: 1921-08-08
Abstract: 188,389. Dyer, H. Aug 8, 1921. Fixing.- A horseshoe let into the hoof and shaped to continue the slope of the hoof is secured by a toe-clip A and by screws B having the same slope as the hoof. The shoe tapers in thickness from the toe to the heels, which are wedge-shaped and fit under a flap of horn at the bars. Reference has been directed by the Comptroller to Specification 13875/97.
Patent GB-1262119-A (GB)
Title: Mixed fertilizer compositions
IPC: C05C5/00
Filed: 1969-04-24
Abstract: 1,262,119. Mixture of prilled fertilizer components. FOSFATBOLAGET A.B. 24 April, 1969 [24 April, 1968], No. 21076/69. Heading C1B. A storable fertilizer having a N/Na ratio by weight of from 0À8 to 5, comprises a mixture of prilled components one of which contains ammonium nitrate and at least one of which contains sodium nitrate (e.g. a mixture of prills of NH 4 NO 3  with prills of NaNO 3  or a mixture of prills of NaNO 3  + NH 4 NO 3  with prills of NaNO 3 ). The prilled ammonium nitrate component preferably is free of chloride ions. Anti-caking agents such as kieselguhr and surface active agents may be used and optional components in the prills are ammonium phosphates, sodium borates and potassium, magnesium and calcium nitrates.
Patent GB-336002-A (GB)
Title: Improvements in carburetors for internal combustion engines
IPC: F02M1/00
Filed: 1929-07-09
Abstract: 336,002. Pollak, J. E., (Rector Gasifier Co.). July 9, 1929. Vaporizers, external.-Heavy fuel, in an annular trough 15, burns with a restricted air supply in a chamber A, and the products of combustion passing down a pipe 52 induce the main supply of fuel through orifices 56 to a mixing chamber 2, which is supplied with air by a passage 8, from which the combustible mixture passes to the engine. At starting, petrol is supplied by a pipe 47, having a tap 48, a chamber 28, and an adjustahle needle valve 46; it forms, with air enter. ing through gauze covered openings 35, a combustible mixture which is fired by a sparking plug 49. A dome-shaped member 31, having openings 51, extends nearly to the surface of the fuel in the trough 15 and has an extension 30 which carries a window 44 hinged at 40. The tube 52 carries a Venturi tube 55, and a concentric tube 53 produces turbulence of the mixture. The heavy oil is supplied to the trough 15 through a chamber 10, float chamber 64 and passages 130. 131, Fig. 8, from a tank 11, Fig. 1, by a pump 13 and pipe 12, the level being maintained by overflow conduits 21, Fig. 9, which are connected to the pump by a pipe 23 and a float chamber 11a which is supplied by the tank 11; by this means the oil circulating through the pump is warmed; the fuel level in the float chamber 64 is just below the level of the overflow conduits 21 so that the carburettor will work with fuel supplied by gravity through a pipe 65, Fig. 1, when the pump 13 is not working; a passage 132 equalizes the pressure in the float chamber 64 and the chamber A. A series of rollers 144, Figs. 8. 9. mounted on a ring 133 and rotated bv vibration of the engine lift tarry substances which tend to collect in the trough 15 so that they are removed by the air current passing under the edge of the dome-shaped member 31. Fuel is supplied from the float chamber 64 to the main fuel valve 85, Figs. 3, 5, by a passage 66 to which aerating air is admitted by a bleed-valve 72 adjustable by rotation of a milled head 73. an annular extension of which carries a locking screw 76; water is supplied from a float chamber 110, through a valve 119, an air-bleed valve 117 being provided. The valves 85, 119 are both mounted on a piston 94 which is connected by a rod 91 with a floating main air valve 88 so that the 3 valves are actuated simultaneously in accordance with the engine suction: an adjustable stop 91 adjusts the closed position of the valve 88. Wells 79 and 116, Fig. 3, are connected by a passage 98 to an annular passage 57 supplying the fuel orifices 56. A slow-running nozzle 107 having an elevated fuel passage and a controllable air inlet is also pro. vided.
Patent GB-498332-A (GB)
Title: Improvements in or relating to electrical wave transmission networks
IPC: H03H7/38
Filed: 1937-07-30
Abstract: 498,332. Condensers. STANDARD TELEPHONES & CABLES, Ltd. July 30, 1937, No. 21190. Convention date, Sept. 12, 1936. [Class 37] [Also in Group XL] A condenser network for coupling two lines of the coaxial-cylinder type is constituted by discs located inside the outer cylinder. In the pi-section shown in Fig. 3, the condensers are constituted by a partition 21, having a central hole, together with small discs at the ends of the inner conductors 22, whose capacity with respect to one another constitutes the series capacity while their capacities with respect to the partition constitute shunt capacities. Fig. 5 shows an analogous arrangement of capacities forming a tee-section.
Patent GB-359018-A (GB)
Title: Method of manufacturing stereotype matrices or embossing dies
IPC: B41C3/06
Filed: 1930-07-14
Abstract: 359,018. Printing and embossing surfaces. FORSTMANN, W., 2A, Feldstrasse, Steglitz, MENZEL, P. K., 5, Hõhnelstrasse, Friedenau, and BOLL, O., 6, Augusta. Viktoriastrasse, Halensee, all in Berlin. July 14, 1930, No. 21252. [Class 100 (ii).] Stereotype matrices and embossing-dies are formed by pressing an original into a block formed of a thin layer of a thermoplastic material such as celluloid, acetyl cellulose, guttapercha, or incompletely-condensed artificial resin, supported on a base of hard non-elastic material capable of retaining an impressed design, and covered with a thin sheet of a material which does not soften. The support is formed of cardboard, press-spahn, or a thin sheet of a metal such as zinc, and the covering-layer is of metal foil or other material. A counter mould may be employed when necessary during the preparation of the matrix or die. The back of the matrix or die may be ground smooth, or the cavities may be filled in order to prevent distortion during use.
Patent GB-415257-A (GB)
Title: Improvements in or relating to reinforced concrete floor, wall, roof or like structures
IPC: E04B5/29
Filed: 1933-07-28
Abstract: 415,257. Reinforced-concrete structures ; girders. SCHAUB, O., Biel, Switzerland. July 28, 1933, No. 21293. Convention date, July 30, 1932. [Class 20 (iv).] A reinforcedconcrete floor, roof, wall, or like structure comprises a concrete slab c supported on rolled metal beams a, each of which has one or more bars b of undulating, helical or like shape welded to the flange which is adjacent to the concrete slab so as to serve as a reinforcement for the concrete and a means of connecting the same to the beam. Two undulating bars b, Fig. 1, may be welded to the upper flange of the beam a with the crests of the two bars in staggered relation. A single bar b<1>, Fig. 3, may be welded to the beam a with alternate undulations inclined in opposite directions, and one or more flat plates d may be welded to the lower flange of the beam. A helical bar b<2> may be welded to the beam as shown in Fig. 5.
Patent GB-1033549-A (GB)
Title: Improvements in or relating to register translator arrangement employing magnetic drums or the like
Inventor: HEMMINGS WILLIAM ARCHIBALD CHA
IPC: H04Q3/42
Filed: 1964-05-23
Abstract: 1,033,549. Automatic exchange register translators. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. May 13, 1965 [May 23, 1964], No. 21392/64. Heading H4K. A magnetic drum register translator has a number of register tracks each divided into register sections to record exchange code and numerical digits communicated through a relay set, a number of library tracks containing exchange code translations being provided, a translation being obtained and written in the exchange code space in the register track storage section by means of a transfer track round which at least part of the exchange code is regeneratively circulated in search of the corresponding translations which when found are written into the transfer track and held until it can be written into the register section, the time during which the translation is held on the transfer track being minimized by having one scan of successive register tracks in search of exchange codes needing translation and a second and concurrent scan trailing the first scan by a number of track lengths, less than the total number of track lengths, and such as to find the register section for which the translation has been obtained. Exchange codes are discovered on the first scan by a pre-read head on each register track which is one register section in advance of the read heads. In the case of A, B and C exchange code digits this pre-read data selects a library track devoted to all codes preceded by the particular A digit and, if the transfer track is free, prepares a path for the B and C digits to be wirtten on to the transfer track direct from the register track read head. The B and C digits are regeneratively circulated round the transfer track in search of the library track storage section as indicated by the permanent display of these digits in a library store address track. When a match is found between the addresses and transfer track digits the correspondingly indexed translation is read out to the transfer track--library storage sections being registered with a delay compared with the address track so as to be available after the match has been made. When the exchange code digits are read from the register track section a mark is written into this section to indicate that the translation digits are being fetched so that the second scan trailing by two track lengths can pick up the section and prepare this track's writing circuits to transfer the translation digits circulating regeneratively on the transfer track.
Patent GB-884986-A (GB)
Title: Electrical connector
IPC: H01R12/78
Filed: 1960-06-17
Abstract: 884,986. Two-part couplings. BENDIX CORPORATION. June 17, 1960 [Aug. 6, 1959], No. 21393/60. Class 38 (1). A pin-bearing part of a connector for flattened or ribbon-type cable comprises an epoxy resin plate 16 reinforced with glass fibres and having integral pins 17, each provided with a thin metal layer 19 extending along one broad surface. The metal is applied to the pins by electroplating and spots of solder 20 are applied. The end of a tape cable 10 is slit 31 between successive conductors and the plate 16 threaded through the slits so that it lies above alternate conductors and below the other conductors. The conductors are then soldered to the respective pins by applying a soldering iron to the cable insulation above a solder spot 20, the plastic insulation melting locally from the conductor and exposing it for adherence to the solder. The projecting forward end of the tape is cut-off along line 32 and the assembly telescoped within a rubber-like insert 21 which is itself inserted in a metal shell 25. The socketbearing part of the conductor comprises an insulating plate member 34 formed with a plurality of forwardly-sloping parallel grooves 37 of which successive ones lie on opposite sides of the plate. The bottoms of each groove have thin strips of metal 39 secured by adhesive and, after the conductors of the cable 10<SP>1</SP> have been soldered to the metal strips, the rear portion of the plate member 34 is mounted in an insert 35 within a shell 41. The cable insert and shell of the pin and socket parts may be secured by adhesive. Upon initial engagement of the connector parts, alternate pins are bent in opposite directions and engage in the corresponding grooves 37. The parts are held together by bolts, and sealing results from the engagement of flanges 24, 42 and from pressure of the rear slanting portions of the metal shells 25, 41 with the rubber inserts 21, 35 which grip the cables. Additionally, the plate member 22 may snugly engage the interior of the insert 21. Keying means between the parts of the connector may be provided to prevent incorrect assembly. A modification comprises connector parts having two rows of contact pins and grooves for use with two divided tape cables. A radio shielding metallic layer, e.g. a foil, is formed on the cable and is connected to the connector shell. A further modification having three rows of pins and grooves is adapted for a cable having three superimposed cable portions.
Patent GB-603722-A (GB)
Title: Improvements relating to electrical storage batteries
IPC: H01M50/171
Filed: 1945-08-22
Abstract: <PICT:0603722/III/1> Joints in a storage battery such as those between the cover and container and between the cover and terminal lugs are sealed by first coating the parts with a solution of the sealing composition in a volatile solvent and then applying the composition in molten form.  The coated surfaces may be heated before the melted composition is applied.  Fig. 1 shows apparatus for carrying out the process in which batteries 23 are conveyed by a belt past six stations at the first of which, A, the batteries receive at the joints to be sealed a coating of the dissolved sealing compound. The sealing compound may consist of a bituminous composition which may be dissolved in carbon tetrachloride or other solvent, the solution being applied to the battery joints by brushing. After the treatment at station A, the batteries are exposed to the air for a few minutes before they reach station B, where they arrive with the coating partially dried and are then heated by a bank of infra-red lamps 25 which remove any of the solvent left in the coating and melt the coating preparatory to receiving some of the melted sealing composition at station C.  At station C, the grooves in the cover of each battery are partly filled with the melted composition and the batteries then move to station D where they are further heated by lamps 25 to cause any air trapped below the upper surface of the composition to rise and form bubbles on the top.  At station E the addition of the melted composition is completed and air bubbles on the surface are broken up at station F by lighted gas jets 33.
Patent GB-1420873-A (GB)
Title: Furnaces
IPC: F27B1/10
Filed: 1973-05-05
Abstract: 1420873 Grate bars in shaft furnaces HAYES SHELL-CAST (DEVELOPMENTS) Ltd 1 Aug 1974 [5 May 1973] 21506/73 Heading F4B In a metal shaft furnace, particularly of the kind having an inert heat exchange bed below the charge, a supporting grid comprises parallel water cooled bar 5, at least some of which have laterally extending fins 6. The bars may be coated with refractory to give an overall diameter equal to the width across the fins. The use of finned tubes enables a smaller numbers of bars to be used without undue cooling of the melt, or rapid increase in the spacing of the bars when the refractory coating is eroded.
Patent GB-965261-A (GB)
Title: Improvements in mountings for transducers of the kind having stylus means for engaging a spiral trace containing a signal and formed on a rotatable disc
IPC: G11B3/36
Filed: 1961-06-14
Abstract: 965,261. Mountings for stylus arms to reduce tracking errors. R. W. B. BIRCH. Sept. 14, 1962 [June, 14, 1961], No. 21553/61. Heading G5R. To minimise tracking error a stylus arm is mounted on a carriage which moves to correct deviations of the stylus from a linear track across a record. The stylus 2 and transducer 1 (Fig. 1,) are mounted by means of a composite arm 3, 4 on a horizontal link 5 and are balanced by weight 7. The link 5 is pendently mounted on a carriage 9 by a pair of vertical wires 10 and is attached to the base of the carriage (Fig. 2,) by a sphere and tube pair 12 and 13 so that the link is allowed movement along its central vertical axis 11 and a limited rotational freedom about this axis. Extending from one end of the link is a needle 14 which engages the teeth of an escapement wheel 15 in the normal position of the stylus arm i.e. at 90 degrees to the carriage. On deviation of the arm from its normal position, rotation of needle 14 disengages it from the escapement wheel 15 which is caused to turn by driving wheel 16 in conjunction with weights 30 and pulley 32. The carriage 9 therefore moves to the left along rails 17 till the arm deviation is cancelled and reversed at which time needle 14 re-engages a tooth of wheel 15 and the carriage is brought to rest. An alternative embodiment is described in which the carriage is driven by an electric motor, the rotation of link 5 causing energization of the motor either by a direct contact of needle 14 with two electrical contacts or by observing the position of needle 14 photo-electrically.
Patent GB-684080-A (GB)
Title: Improvements in or relating to electron discharge tube apparatus
IPC: H01J29/66
Filed: 1951-09-17
Abstract: 684,080. Electron image tubes. FERNSEH GES. Sept. 17, 1951 [Sept. 18, 1950], No. 21747/51. Class 39(i) The electron image from a photo-cathode is focused by an electromagnetic field which is normal to the cathode surface at the plane of intersection and has an intensity which increases from the centre to the effective edge of the cathode by at least 25 per cent to eliminate distortion of the projected image. The electron image from the photo-cathode 4, Fig. 1, of an inconoscope is focused on to the storage electrode 5 by an electrostatic lens, formed by a potential of 800 volts between the cathode and an anode in the form of a silver coating on a glass cylinder within the tube, and a coil 7 housed within the iron casing 6. The increased magnetic intensity at the cathode edge is obtained by a pole piece 8 which may be provided with an auxiliary winding 10, Fig. 4, a collar 9 and a stepped or conical aperture, the diameter of which is about three times the thickness of the pole piece and touches or just clears the corners of the image. The invention may be applied to image intensifiers.
Patent GB-1471028-A (GB)
Title: Etching apparatus and process
IPC: C23F1/08
Filed: 1974-05-16
Abstract: 1471028 Etching apparatus HOECHST AG 16 May 1974 [18 May 1973] 21772/74 Heading B6J Etching apparatus comprises a support surface 2 for an article to be etched, e.g. a printing plate, an outlet 13 for spent acid, etching liquid and a vessel 3 in which the spent etching liquid may be neutralized before being discharged through outlet valves 8 into filter boxes 9. The neutralizing liquid, e.g. sodium hydroxide is introduced into the vessel 3 from a tank 7 via metering valve 6 and the liquid in vessel 3 is simultaneously stirred by a paddle 4. The end point of neutralization may be observed on a pH meter 15. Alkali metal hydroxide is separated from the neutralized liquid in boxes 9 and the neutral liquid is discharged through filtrate tank 10 into the sewage system via pipe 11. Spent etching liquid reaches the outlet 13 via channels 12 surrounding the support surface 2. The channels may be covered with edge strips 16 and provided with vents 17 connected to a fan for removing etchant vapour.
Patent GB-456329-A (GB)
Title: Improvements in the arrangement of coal bunkers on steamships
IPC: B63B3/14
Filed: 1936-08-07
Abstract: 456,329. Bunkers. MELDAHL, K. G., 4, Fargestedsvej, Fredriksstad, Norway. Aug. 7, 1936, No. 21791. Convention date, Sept. 14, 1935. [Class 113 (ii)] In ships in which the boilers are mounted on an elevated platform or deck, for instance, the weather deck. The bunkers 7 arranged round the boilers 2 are extended in their upper portions laterally or longitudinally leaving communicating passages 4, 6 running beside or through the bunkers.
Patent GB-187756-A (GB)
Title: Improved apparatus for treating wool and similar fibrous substances
IPC: D01G15/04
Filed: 1921-08-17
Abstract: 187,756. Bray, D. Aug. 17, 1921. Openers, cleaners, etc.; feeding openers, cleaners, &c.-In a machine for breaking up or disentangling wool &c. the lower feed roller c is provided with circumferential grooves and the upper feed roller f is provided with rings of spikes which enter the grooves. An oscillating spiked roller g is mounted to co-operate with the roller f and the spiked main cylinder a. The fibres are stripped from the cylinder a by a drum d working over a grid 4 and are discharged by the draught created up the channel h. The roller g is oscillated by a chain m and sprocket p operated by a crank v. The arm s is secured to the sprocket p by a bolt t and can be adjusted relatively to the sprocket so as to alter the position of the active part of the roller g when it is partly worn. Specification 126,785 is referred to.
Patent GB-776252-A (GB)
Title: Improvements in or relating to sleeve-like members for expansible anchor bolts
Inventor: IRVING JAMES
IPC: F16B13/06
Filed: 1954-07-27
Abstract: 776,252. Anchor-bolts; bolt-hole bushes. BAYLISS, JONES & BAYLISS, Ltd. Oct. 8, 1954 [July 27, 1954], No. 21828/54. Class 89 (1). [Also in Group XXII] A sleeve 1, Fig. 3, for an expansible anchor-bolt is made from a length of metal-stock of channelshape in cross-section, folded transversely of its length at a position intermediate its ends to bring the edges of the channel face to face and form a sleeve, the blind end of which is formed with a hole in continuance of the bore formed between the opposed parts of the stock. The resultant sleeve has longitudinallyextending slits 14 notched at 13 to facilitate entry of a wedge-shape bolt-head for expanding the sleeve. Specification 776,250 is referred to.