baber/WOPTO huggingface dataset:
Patent GB-1192292-A (GB)
Title: Improvements relating to Matrix Storage Devices
IPC: G06K17/00
Filed: 1968-01-10
Abstract: 1,192,292. Magnetic storage matrices. INTERNATIONAL BUSINESS MACHINES CORP. 10 Jan., 1968 [13 Jan., 1967], No. 1371/68. Heading H3B. In a memory matrix in which magnetic storage elements are arranged at the intersection of word and bit lines and grouped so as to define a plurality of respective word locations along a word line, during read-out unselected bit lines are inhibited by fractional select pulses and the unselected bit lines are electrically isolated from selected lines. In the first embodiment, Fig. 1, a matrix array has N words along the top and M words along the side, there being b bits per word. During a read operation a selected word line 13 is energized with a full select current in the read direction and the bit lines 14 corresponding to the word A, B . . . M being read out are not energized. The remainder, i.e. unselected bit lines 14 are energized with a half select current in the direction to inhibit the read effect on the cores associated with the unselected bit lines 14 and the resultant half select current applied to these cores is insufficient to switch them. In a write operation the selected word line 13 and selected bit lines 14 are energized with coincident half select pulses. In order to isolate the bit drivers 19 from the corresponding bit line 14 diodes 20 are included in the balanced bit line pairs. Diodes 23 form gates connecting a sense amplifier 22 to each bit line 14 of the associated bit position and are back biased when the unselected bit drivers of the associated bit lines are energized, the diode 23 for the selected bit line remaining conducting in circuit with resistors 25 so as to couple the read signal to the amplifier 22. In a second embodiment, Fig. 3, for a write operation bit current source 33 and the selected bit driver 19 provide a full select current, which is divided by transformer 34, coincident with a pulse from the selected word driver 17. In a read operation the bit drivers 19 of the selected word are turned on together with the appropriate word driver 17. At the same time the two inhibit sinks 41, 42 are turned on and the diodes 39 connect the unselected bit lines 14 in two series circuits such that the unselected bit lines receive an inhibit pulse but the selected bit line does not.
Patent GB-523825-A (GB)
Title: Improvements in or relating to car couplers or couplings
IPC: B61G3/04
Filed: 1939-01-16
Abstract: 523,825. Automatic vehicle couplings. STEVENS, A. H. (American Steel Foundries). Jan. 16, 1939, No. 1436. [Class 103 (v)] In order to avoid train slack between the knuckle couplers of adjacent vehicles, even in the position of maximum angling, both the knuckles and the guard arms of the couplers are provided with resilient buffing means. Preferably, the buffers on the knuckles have a larger' capacity than those on the guard arms so that, in effecting a normal coupling, only the latter buffers are compressed. As shown, each guard arm 8 is recessed to form a pocket for upper and lower light springs 28, 30 which bear against the head of a plunger 62, the outward movement of which is limited by stops 46 formed thereon. In the coupling operation the face 48 of the plunger is engaged by a lug 20 on the opposed coupler. The knuckle buffers comprise plates 74 on the knuckle faces pressed outwardly by strong springs housed in shallow pockets.
Patent GB-385756-A (GB)
Title: Improved method of and apparatus for electrolysis with the use of a mercury cathode
IPC: C25C7/00
Filed: 1932-01-18
Abstract: 385,756. Electrolysis ; purifying mercury. PALMAER, K. W., 60, Sturegatan, Stockholm. Jan. 18, 1932, No. 1461. Convention date, April 29, 1931. [Class 41.] In a process in which iron, nickel and cobalt are removed from solutions by deposition into a mercury cathode, the contaminated mercury is continuously or intermittently removed from the cell 1 by an overflow pipe 2a balancing the pressure in the cell, and is raised by a pump 3 to a compartment 4 to which a solution, colloidal solution, or suspension of a purifying agent is also supplied by a pipe 21 for removal of the deposited metals. The mixture passes to a U-tube 5 from which the purifying liqud overflows by a pipe 13. The mercury passes to funnels 6, 7 from which it re-enters the cell 1, flowing over vertical'cathode'sheets. Washing water is introduced by a pipe 23 and escapes at 14. The solution to be electrolyzed is supplied to the cell by a pipe 15. The mercury is introduced into the compartment 4 tangentially in order to effect mixing. The purifying agent may consist of an oxidizing agent which is readily re-oxidizable, e.g. ferric sulphate, a hypochlorite, nitric acid or a nitrate. Removal of the deposited metal is stopped short of completion in order to avoid attacking the mercury. Alternatively a purifying agent indifferent to mercury such as a mercurous salt may be employed. Reference has been directed'by the Comptroller to Specifcation 318,149, [Class 41, Electrolysis],
Patent GB-509996-A (GB)
Title: Improvements in the manufacture of electric dry cells
IPC: H01M6/22
Filed: 1939-01-16
Abstract: 509,996. Batteries. BURNDEPT, Ltd.. and O'DWYER, J. Jan. 16. 1939, No. 1462. [Class 53] Paste electrolyte for a dry cell is formed by adding to the liquid electrolyte sufficient flour or other insoluble starch subsequently to form a gel, by heating if necessary, together with a soluble starch or gum in quantity sufficient to increase the viscosity of the electrolyte but insufficient to prevent its flowing freely. The viscosity of the electrolyte should be increased to at least 0.1 poises, this increase being such as to prevent the electrolyte being absorbed by the depolarizer block before gelling has taken place.
Patent GB-1306662-A (GB)
Title: Travelling wave tubes
IPC: H01J23/24
Filed: 1971-01-13
Abstract: 1306662 Travelling wave tubes SIEMENS AG 13 Jan 1971 [14 Jan 1970] 1561/71 Heading H1D A delay line for a travelling wave tube comprises a waveguide containing transverse walls 2 forming resonant cavities linked by coupling slots 3, each of said transverse walls containing at least one additional slot 6, said additional slots having dimensions such that their resonance frequency is equal to an unwanted parasitic frequency of a higher mode. The additional slots 6 may have a shape similar to the profile of a dumb-ball. The edges of the additional slots may be coated with a resistive layer, or a dielectric plate, on which a resistive layer can be vaporized, may be provided in the additional slots. The walls 2 are separated by rings 1.
Patent GB-161703-A (GB)
Title: An improved construction of electric fire
IPC: F24C7/04
Filed: 1920-01-19
Abstract: 161,703. Osgood, H. J. Dean-. Jan. 19, 1920. Heating by electricity.-Heating-elements 16 are mounted by clips or otherwise on a shouldered refractory plate 9 attached to a frame 11, which is secured within a central panel 7 on an outer frame 8 so that the heating-elements project forwardly of the frame. A casing 13 is hinged at 12 to the frame 11, and secured by a bolt 15 and nut 16. The radiator rests on two feet on the frame 8 and one on the casing 13. A wire guard is fitted over the heating-elements.
Patent GB-659897-A (GB)
Title: Improvements in or relating to processes of diazotising amino compounds
Filed: 1949-01-20
Abstract: Acid amino compounds which are diazotizable and of low solubility in water, and of which the diazo compound is of an acidity greater than that of nitrous acid, are diazotized by dispersing the amino compound in an aqueous liquid containing at least an equivalent amount of a salt of nitrous acid, and initiating the reaction by adding an amount considerably less than the equivalent (e.g. less than 2 mol. per cent) of an acid which is capable of liberating nitrous acid from its salts and which does not form an insoluble substance with either the amino compound or the diazo compound to be prepared.  In examples: (1) 6-methyl-2-aminophenol-4-sulphonic acid is stirred with an aqueous solution of sodium nitrite, and fluoboric acid is added, producing a precipitate of the sodium salt of the diazo compound; (2) the sodium nitrite in (1) is replaced by silver nitrite yielding the silver salt of the diazo compound; (3) nitric acid is added to a suspension of 2-aminophenol-4-sulphonic acid in an aqueous solution of sodium nitrite; (4) hydrochloric acid is added to a suspension of 1-amino-2-naphthol-4-carboxylic acid in an aqueous solution of sodium nitrite.
Patent GB-398707-A (GB)
Title: Improvements in and relating to the manufacture of lamellar blades for safety razors
IPC: B21D53/64
Filed: 1933-01-18
Abstract: 398,707. Making razor blades. PASCH, H., 1, Kanalstrasse, Solingen, Germany. Jan. 18, 1933, No. 1666. Convention date, Jan. 18, 1932. [Class 83 (ii).] Lamellar safety-razor blades, stamped from a continuous steel ribbon, are provided with a rust-proof metallic coating by passing them through a bath whilst in the ribbon and before grinding. The cutting-edges themselves are rendered rust-proof due to the mirror-smooth finish imparted to them in the subsequent grinding and polishing operations which remove the metallic coating from them.
Patent GB-735946-A (GB)
Title: Improvements in or relating to loading machines
IPC: B62D11/06
Filed: 1953-01-20
Abstract: 735,946. Steering vehicles by declutching and braking. WHALEY, W. Jan. 20, 1953 [Jan. 21, 1952], No. 1677/53. Class 79(2). [Also in Groups XXX and XXXIV] In a conveyer loader (see Group XXX) a sleeve 13, to which is secured a track-driving sprocket 45, flanked by guide drums 48, is mounted in bearings 15, 17 within a housing 10 and a shaft 14 passes across the width of a subassembly 3 through the sleeves 13 for rotation in bearings within the sleeves. Sprocket 54 on shaft 14 is driven from a motor (not shown) on the main frame of the loader and each sleeve 13 is provided with a hydraulically operated clutch and brake arranged to be simultaneously operated, the two sets of clutch and brake being operable alternatively so as to enable steering to be effected by withdrawing one clutch and braking the associated sleeve 13 to stop one sprocket 45 while the other sprocket 45 continues driving. Each clutch consists of a clutch ring 57 slidable on shaft 14 and provided with dogs 56 adapted to mate with dogs 55 on the associated sleeve 13. A spring 91 is disposed around shaft 14 between the two sleeves to bias them into engagement with the respective sleeves 13. Each withdrawal mechanism consists of a lever 64 pivotally mounted at 65 having a fork and 61 engageable with a peg 60 on the clutch sleeve 57 and an adjustable bell crank assembly 83 pivoted to lever 64 at 85 for transmitting motion from the piston of a hydraulic cylinder 77 to lever 64 to withdraw the clutch. Each brake consists of a brake drum keyed to sleeve 13 and a brake band 111, Fig. 12, which is tightened around the drum by a bell crank 96 to which the band is adjustably connected, the crank being in turn operated by a hydraulic cylinder 103. Each pair of cylinders 77, 103 is controlled together by parallel conduit connections leading to control valves. A modified brake, Fig. 15, comprises a pair of brake shoes 210 operated by centrally pivoted levers 206, 208 the upper ends of which are forced apart by the hydraulic cylinder 219.
Patent GB-722094-A (GB)
Title: Improvements in or relating to the production of electrically-insulated wire
Inventor: STRINGER JOHN THOMAS
IPC: H01B3/44
Filed: 1951-01-23
Abstract: Electrically insulating coatings on wire are formed by applying to the wire a solution comprising a potentially reactive dibasic aciddihydric alcohol condensation product (the dibasic acid of which consists of more than 50 per cent of maleic acid), a substance containing the group CH2=C>, e.g. styrene, and a polymerization catalyst, e.g. benzoyl peroxide, and baking at 200-400 DEG  C.  In preparing the resin, maleic anhydride may be partially replaced by o- or terephthalic, adipic or sebacic acid anhydrides, and as dihydric alcohols, ethylene or diethylene glycol, 1,4-butane diol, 1,6-hexane diol, and polyglycols may be used.  a ,o -Hydroxylamines, e.g. monoethanolamine, or polyvinyl formal may replace up to 50 per cent of the alcohol and the resin respectively.  Suitable solvents are cresylic acid or a cresylic acid-naphtha mixture.  The catalyst should be present in sufficient amount to overcome any inhibitor, e.g. hydroquinone, which may be present.
Patent GB-846606-A (GB)
Title: Improvements relating to apparatus for feeding measured quantities of clay to moulds
Inventor: BIRCH MAURICE ARTHUR
IPC: B28B13/02
Filed: 1958-01-18
Abstract: 846,606. Feeding clay to moulds. HAYEK & PARTNERS Ltd., A.G. April 17, 1959 [Jan. 18, 1958], No. 1772/58. Class 87(2). Apparatus for feeding measured quantities of clay to moulds comprises a measuring chamber 20 into which clay is fed from a pugmill through a feed arm 11, Fig. 3, a closure plate 24 which is slid back to uncover a discharge opening 23 in the bottom of the chamber when full, a plunger 30 which descends and forces clay from the chamber into a mould and a skirt 32 on the plunger 30 which severs the clay in the chamber from that in the feed arm. The plate 24 is withdrawn by a piston-rod 25 operated by a piston 26 in a cylinder 27 into which fluid under pressure, hydraulic or pneumatic, is directed through a port A by a valve which is operated, through trigger switches and solenoids, from the movement of a horizontal mould table 50. The valve also directs pressure fluid through a port C into a cylinder 35, the piston 34 of which forces down the plunger 30. The descent of the plunger 30 operates a solenoid which causes the valve to direct pressure fluid into the cylinder 27 through a port B and so restore the closure plate 24. Finally the valve operates to retract the plunger 30 and admit clay to the chamber 20 for the next feeding operation. As shown, Fig. 2, two moulds 51 are filled at a time, a mouth piece 10 from the pugmill branching into two feed arms 11, 12. The valve mechanism may be operated by the pressure build-up in the measuring chamber.
Patent GB-1447707-A (GB)
Title: Solid catalyst for heterogeneous reactions
IPC: C07C2/66
Filed: 1974-01-15
Abstract: 1447707 Acidic catalyst composition IMI (TAMI) INSTITUTE FOR RESEARCH & DEVELOPMENT 15 Jan 1974 [17 Jan 1973] 01838/74 Heading B1E [Also in Divisions C2 and C5] A catalyst comprises a solid carrier and carboxymethane sulphonic acid and/or products resulting from thermal treatment thereof at a temperature not exceeding 330C. The catalyst is formed by impregnating the carrier with the acid or precursors thereof (e.g. glacial acetic acid and sulphur trioxide, acetic acid anhydride and sulphuric acid, acetic acid and oleum or acetylsulphuric acid), drying, if desired under reduced pressure, at a temperature not exceeding 170C, then baking at 170-330C to constant weight. The carrier may be an inorganic oxide, an acid based on such an oxide or a salt thereof, e.g. alumina, silica, bona, zirconia, silica-alumina, silica-alumina-zirconia, diatomaceous earth, atterpulgus clay or bentonite or may be active carbon or graphite. The carrier may be pretreated with an acid before the impregnation.
Patent GB-1569032-A (GB)
Title: Telecommunications exchange systems
IPC: H04Q3/00
Filed: 1977-01-18
Abstract: In a circuit arrangement for telecommunications switching systems with locators (D) for information recording based on the last-look principle, AC noise voltages are identified with the aid of time-measuring devices (R, V, W). Received pulses are divided into useful pulses and noise pulses by means of time measurement. The respective duration of consecutive noise pulses or the respective duration of the pauses occurring between them or the respective period length is measured. The time values measured herein are compared with one another and checked in terms of definable periodicity. <IMAGE>
Patent GB-524146-A (GB)
Title: Improvements in and relating to the manufacture of hollow articles by extrusion
IPC: B21C23/03
Filed: 1939-01-20
Abstract: 524,146. Extruding hollow articles. HIGH DUTY ALLOYS, Ltd., and HERON, J. A. Jan. 20, 1939, No. 2008. [Classes 83 (ii) and 83 (iv)] Hollow articles such as gas bottles and airscrews are extruded from light alloys such as those of aluminium and magnesium by means of a die and mandrel the extrusion being over the mandrel shaped to form the closed end, the die having a constriction that determines the outside diameter of the article which is formed with an externally thickened wall at the open end. A billet 3 is placed on a die 8 within a container 2 having an enlarged mouth 9. The first action of the mandrel 4, that has an end shaped according to the desired form of the closed end of the container, is to upset the billet to fill the spaces 10 and 13, part of the metal being extruded backwards to form the thickened end 12, Fig. 3. The sleeve 7 now contacts the container and forces this downwards over the die 8 extruding the metal between the constriction 11 and the mandrel to form the bodv 1. The stroke terminates before the constriction reaches the top of the die so forming a handling ring 14 on the article. After removal of the mandrel 4 and die 8 a further mandrel may be used to force the large end 12 through the constriction 11, the rear surface 15 being bevelled for this purpose, thus transferring the extra metal to the inner surface. The neck may be further reduced by swaging or spinning, and these processes may be employed instead of forcing the article through the container which must then be sectional to permit removal. In a modification the constriction 21 of the container is at the lower end and the mandrel has two diameters 22, 19, the latter such as to act as a ram in the part 23 of the container. In this form extrusion is first backwards over the part 22 of the mandrel until this reaches the constriction 21 when it shapes the closed end of the article. The shoulder 27 then acts as a ram extruding the body of the bottle forwards over the mandrel and finally forming the thickened open end in conjunction with the tapered part 24 of the container which may be employed subsequently similarly to the bevelled surface 15. Specifications 518,037, 524,152 and 524,189 are referred to.
Patent GB-1222643-A (GB)
Title: Improvements in or relating to rocket propulsion units
IPC: F02K9/10
Filed: 1969-01-13
Abstract: 1,222,643. Rocket propulsion units. DYNAMIT NOBEL A.G. 13 Jan., 1969 [16 Jan., 1968], No. 2017/69. Heading F3A. A rocket propulsion unit having a combustion chamber 1 in which is disposed a cylindrical longitudinally extending, internally burning solid propellent block having a centrally disposed, longitudinally extending chamber 6 of non-circular cross-section and provided in those regions where the radial thickness of the wall of the block defining the chamber is not a minimum with a plurality of longitudinally extending empty grooves 7, 8 and 9 in the external surface of the block, of longitudinally extending empty passageways (not shown) in the block, or of empty cavities (not shown) formed in the block. The grooves may increase in depth along the length of the block. The cavities are comprised by bubbles. Insulation 4 covers the external surface of the propellent.
Patent GB-1216391-A (GB)
Title: Elevator guiding device
IPC: B66B7/04
Filed: 1968-01-15
Abstract: 1,216,391. Guide assemblies for lifts. MITSUBISHI DENKI K.K. 15 Jan., 1968 [14 Jan., 1967; 1 Sept., 1967], No. 2043/68. Heading B8L. An elevator guiding device, Fig. 2, comprises a T-shaped guide rail 12 and a guide shoe 22 of U-shaped cross-section in a guide holder 16 with a gib portion 18 and a rod 20 in a housing 14 of circular cross-section with ball bearings 24. The rod 20 is loaded by a spring 38 adjusted by a screw 34 with a lock-nut 36. Vibration is attenuated by a friction member 44 loaded against the rod 20 by a spring 48 adjusted by a screw 46. In a modification, Fig. 2A (not shown), the friction member 44 engages a tapered portion of the rod 20 so that the frictional force developed depends on the magnitude of the reaction due to the guide rail 12. Fig. 3 shows a modification wherein the rod 20 is bifurcated and of rectangular cross-section within the housing 14. Two rollers 52 are mounted on the rod 20 between the bifurcated portions and contact a pair of opposed guide plates 54. Fig. 5 shows a modification wherein the rod 20 is supported at its free end in a bearing 58.
Patent GB-246511-A (GB)
Title: Improvements in or relating to protective switches for electric motors
IPC: H02H3/247
Filed: 1926-01-23
Abstract: 246,511. Siemens - Schuckertwerke Ges. Jan. 24, 1925, [Convention date]. Automatic curcuit-breakers; cut-out systems.- An automatic switch for protecting a motor against no-volt and overload conditions is delayed in action by a hot wire 31 normally holding in position a latch 28 which prevents release of the no-volt magnet armature 26 during short fluctuations of potential in the line. In the three-phase apparatus shown the wire 31 is heated by current induced in a coil 34 associated with the no-volt magnet coil 25. The movable switch contacts 3 are closed through collapsable toggle links 10, 11, 12 by a handle 5, which also closes an auxiliary switch 38 to connect the no-volt magnet across two phases of the supply. Tripping members 20 are made to strike the toggles either by movement of the no-volt armature 18, or by movement of overload plungers 18, but unless the overload is considerable a spring blade 47 making contact with two stop terminals 39, 40 arrests the action, which is completed by the novolt armature after the short-circuiting of the coil 25 and is subject to the delay due to the hot wire.
Patent GB-784234-A (GB)
Title: Improvements in or relating to electric soldering tools
IPC: B23K3/047
Filed: 1955-01-24
Abstract: 784,234. Electric heating and soldering tools. EMMERSON, J. W. Jan. 12, 1956 [Jan. 24, 1955; March 30, 1955], Nos. 2076/55 and 9297/55. Class 39(3) [Also in Group XXII] An electric soldering tool comprises a pair of insulating handles 9, 9a pivotally connected together near one end with resilient means for urging the handles apart, each handle incorporating means for detachably receiving a member and means for supplying electric current thereto with one or both handles incorporating switch means and a conducting arm with a heating electrode at one end being detachably mounted in each handle, one such arm being detachably mounted in one handle and an earth connection being mounted in the other or a soldering bit having plug connectors being detachably. mounted in the handles. The handles 9, 9a, Fig. 2, of plastic material are mounted on a pivot 12 with a spring 13 holding them apart at their upper ends in which are located tubular sockets 8, 8a. Sockets 15, 15a in the lower ends of the handles receive plug connections from supply leads and a metal strip 17 connects the sockets 8, 15 while a spring contact 18 forming a switch with a contact 19 connects the sockets 8a, 15a. An arm comprising an insulating sheath 2, Fig. 1, about a rod and carrying a carbon electrode 3 in a bifurcated support member 4 may be mounted in each socket 8, 8a. The electrodes can be gripped or pressed on the work and with the switch closed by a button 20 current flows to heat the electrodes and current passes through the work-piece. An electrode coaxial with the arm may replace the described electrode. One arm may be replaced by an earth lead as in Fig. 5 and the other may be replaced by an arm having a pointed or round electrode. The arms may be replaced by a sheath 22, Fig. 9, housing a carbon rod heating element within a hollow detachable bit 23, preferably with a brass tip, a pair of plug connectors being inserted in the sockets 8, 8a. It is stated that in some circumstances the joint may be made without solder, parts being fused by electrode generated heat.