baber/WOPTO huggingface dataset:
Patent GB-901422-A (GB)
Title: Improvements relating to magnetic core matrices
Inventor: KAPOSI JANOS FERENC
IPC: G11C11/06
Filed: 1959-11-07
Abstract: 901,422. Circuits employing bi-stable magrietic elements. ERICSSON TELEPHONES Ltd. Nov. 7, 1960 [Nov. 7, 1959], No. 37824/59. Class 40 (9). A matrix comprising n rows and m columns of magnetic cores C11, C12 ... C33 has a row wire 11 and a column wire 10 threading each core, a transfer row of m magnetic cores 51, 52, 53, means for transferring information from the matrix to the transfer row, and means for reading information from the transfer row while at the same time transferring the information to a selected row (or rows) of the matrix. A row (or column) wire consists of the series connection of one of the windings on all cores of a row (or column). Assume all cores to be in the 0 state initially and that information is fed into the matrix by applying half-write pulses simultaneously to row 2 and column 5 to switch core C22 from the 0 state to the 1 state. This information is read out by applying a full current pulse to the row wire 11 of row 2 to switch core C22 to the 0 state. The flux change in core C22 produces a pulse on column wire 12 of column 5, which pulse passes through amplifier 42 and switches transfer core 52 from the 0 to 1 state. Read-out pulses are then applied in turn by windings 15 to each transfer core while at the same time a half-write pulse is applied to the row wire 11 of the row to which the information is to be transferred. This may be the same or a different row from that from which the information was extracted. When a read-out pulse is applied to core 52 in the 1 state it is switched to the 0 state. The flux change induces a pulse in output wire 14 and also induces a half-write pulse in column write wire 13. This half-write pulse is coincident with the half-write pulse applied to one of the row wires 11 and switches one of the cores of column 5 (e.g. core C22) to the 1 state. Diodes may be inserted in column write wires 13.
Patent GB-1531679-A (GB)
Title: Apparatus for cathodic protection of a metal structure in the sea
IPC: C23F13/00
Filed: 1977-09-12
Abstract: 1531679 Sacrificial anodes for cathodic protection SOC NATIONALE ELF AQUITAINE (PRODUCTION) 12 Sept 1977 [13 Sept 1976] 37909/77 Heading C7B Apparatus for cathodic protection of a marine metal structure comprises two types of sacrificial anodes joined by electrical conductors to the structure: a first for which the current output is greater than 10 A/m<SP>2</SP> and a second for which it is less than 6A/m<SP>2</SP> , for a potential of about -900mV (necessary for cathodic protection) in relation to a standard saturated calomel electrode, the absolute values of the decomposition potential under load of both types being greater than that of the structure to be protected. The anodes are preferably of aluminium alloy containing 0À3 to 6% Zn or Cd and 0À02 to 0À2% Hg, the first type also containing less than 0À005% each of Mg and Cu and forming a watertight casing around the second type also containing 0À5 to 10% Mg and 0À1 to 1% Cu; less than 0À6% Fe, Mn or Si may be present in either alloy.
Patent GB-1222788-A (GB)
Title: Sensitive high capacity room thermostat
IPC: H01H37/12
Filed: 1969-07-29
Abstract: 1,222,788. Thermal switches. ITT INDUSTRIES Inc. 29 July, 1969 [2 Aug., 1968], No. 38022/69. Heading HlN. [Also in Division Gl] A thermostat control comprises a rigid plastic face-plate 11, Fig. 2, mounted near its centre by tubular rivets 26, 27 and supporting a bowed stainless steel strip 30 having a lower coefficient of thermal expansion than the plate and cooperating through an adjustment device with the plunger 39 of a micro-switch 18. The strip 30 has apertures 31, 32 for the rivet mountings and carries a calibrated temperature adjusting knob 12 in a threaded bushing 34. A calibrating set-screw 36 is provided to engage the switch plunger 39.
Patent GB-365277-A (GB)
Title: Improvements relating to fire extinguishers
IPC: A62C13/70
Filed: 1930-12-19
Abstract: 365,277. Brackets. MITCHELL, H. E., Grange House, Levenshulme, Manchester. Dec. 19, 1930. No. 38288. [Class 52 (v).] A bracket for holding a fireextinguisher comprises spring arms s, a guard t for the nozzle c, and a guard u for the operating plunger d.
Patent GB-897613-A (GB)
Title: Improvements in or relating to voice-frequency amplifiers
IPC: H04B1/58
Filed: 1959-11-11
Abstract: 897,613. Telephone transmission systems. COMPAGNIE INDUSTRIELLE DES TELEPHONES. Nov. 11, 1959 [Nov. 18, 1958], No. 38325/59. Class 40 (4). The input and output of alternating-current amplifier are connected to a pair of conjugate arms of a first differential transformer, whose other conjugate arms are respectively connected to the conjugate arms of a second differential transformer, whose other pair of conjugate arms are connected to the respective line terminals. By choosing this latter pair of conjugate arms to be those connected to the opposite ends of the centre tapped winding a through metallic connection is provided for passage of D.C. or lowfrequency signalling currents. In one arrangement, Fig. 3, the line terminals (1-1<SP>1</SP>) 2 , (2-2<SP>1</SP>) 2  are connected to the amplifier Q via two differential transformers D 1 , D 2  in cascade. It is shown that with suitable turns ratios in the transformers the impedance matrix of the whole circuit is the same as that of the amplifier Q times a numerical factor (which can be eliminated by adjusting the turns ratios of the input and output transformers of the amplifier). In an alternative arrangement, Fig. 4, the differential transformers D 1 , D 2  are connected back to back and the impedance matrix of the arrangement is then identical with that of the amplifier Q. Fig. 8 illustrates a detailed embodiment of a two-way amplifier according to Fig. 4, the circuit Q being the unidirectional amplifiers V, V<SP>1</SP> together with the differential transformers Da, Db. The two transformers D 1 , D 2  are replaced by a single transformer in the lower part of the Figure, the coupling due to the single interconnected windings (4-4<SP>1</SP>) 1 , (4-4<SP>1</SP>) 2  of Fig. 4 being replaced by direct inductive coupling. Condensers K, K<SP>1</SP> reduce the shunting effect of the amplifier at low frequencies. Fig. 9 illustrates a detailed embodiment according to Fig. 3. In this embodiment the differential transformer D 2  is reproduced in its entirety, but the coupling between the single winding of transformer D 1  and the single input winding of the differential transformer to the left of the amplifier are replaced by a direct inductive coupling. Appropriate adjustment of the turns ratios for the amplifier transformers is necessary as indicated above.
Patent GB-1059789-A (GB)
Title: Improvements in or relating to atomizers
IPC: B05B11/06
Filed: 1964-09-21
Abstract: 1,059,789. Spray-producers. P. CURTI. Sept. 21, 1964 [Sept. 30, 1963], No. 38378/64. Heading B2F. In a portable liquid atomizer in which depression of a spring-loaded piston 20 causes liquid in a saturated pad 29 to eject through an atomizing nozzle 32 a ball 39 located in a groove 38 in a rod 25 fixed to the piston is used to lock the piston in its innermost position when the atomizer is not required. The ball slides in a guideway 36 in a sleeve 33 through which the rod 25 moves and as long as the piston is not depressed such that its upper surface moves below the upper edge of the atomizer continuous depression alternating with spring-loaded return may be effected. An elbow 37 is formed in the sleeve at the bottom of the guideway 36 such that when piston locking is required depression of the piston entirely into the atomizer allows the ball to engage the elbow. Simultaneously with this piston locking, a head 26 at the lower end of the rod 25 engages an aperture 41 in a flanged collar member 40 attached to a plug-like portion 11 of the atomizer which is fixed to a container (not shown) for the liquid to be atomized. This engagement of head and aperture seals the interior of the container from the pad 29, and associated nozzle 32. Unlocking of the piston and reopening of the path between the container and the pad is effected by further depression of the piston and tilting of the atomizer until the ball 39 is released from the elbow 37. During spraying, replenishment of the pad 29 is effected by imersion of the atomize and container such that on each retractive stroke of the piston liquid is sucked successively through the chamber 15 surrounding the head 26 and orifices 19 in a partition 13 separating the latter chamber 15 and the pad 29.
Patent GB-1381445-A (GB)
Title: Aluminium alloy
IPC: C22C32/00
Filed: 1973-08-15
Abstract: 1381445 Sintered Al alloy MAHLE GmbH 15 Aug 1973 [31 Oct 1972] 38501/73 Heading C7A Heat resistant sintered alloy, suitable for I.C. engine pistons, comprises:- The initial Si C powder preferably has a compact spherical form or has rounded edges, and the powder may be pre-coated with Cu or Ni. The powder for sintering is preferably pre-alloyed.
Patent GB-1501277-A (GB)
Title: Apparatus and method for monitoring an opening in a stem for an electric incandescent or discharge lamp
IPC: H01K3/30
Filed: 1975-09-19
Abstract: 1501277 Detecting exhaust holes in lamp stems; measuring fluid-flow EGYESœLT IZZOLAMPA ES VILLAMOSSAGI RT 19 Sept 1975 38515/75 Headings G1M and G1R [Also in Division H1] A lamp stem 1 having leads 2 and a tube 3 with holes 5 through which the bulb may be emptied or filled, is arranged to be positioned between air jets 6 opposed at 180 degrees or less so that air passes up the tube 3, if the necessary holes 5 are present, into a flow detector having a ball 8 which may be lifted to obscure the light from a source 12 illuminating a light-sensitive device 13. If the holes 5 are not present then the device 13 remains energized and a reject circuit is operated.
Patent GB-1533320-A (GB)
Title: Binding material
IPC: B65D63/12
Filed: 1976-09-17
Abstract: 1533320 Binding tie materials BREVETEAM SA 17 Sept 1976 [26 Sept 1975 (2)] 38520/76 Heading C3M [Also in Division B5] A film comprises a part crystalline thermoplastic synthetic polymer and a cohesion control agent to render the film capable of being torn into strips of a selected width. The film is stretched longitudinally in a ratio of 5 : 1 to 8 : 1 and may also be foamed. Preferred films comprise 100 parts polypropylene and 5 to 15 parts polystyrol as the cohesion control agent. The film is used as a binding tie stock material.
Patent GB-1241166-A (GB)
Title: Method of coating material in web form
Inventor: BACKWELL TERRY FRANK
IPC: B05D1/28
Filed: 1967-08-22
Abstract: 1,241,166. Coating sheet materials. ROBINSON WAXED PAPER CO. Ltd. 20 Aug., 1968 [22 Aug., 1967], No. 38664/67. Heading B2E. A web material is coated by extruding a curtain of heated coating material on to a carrier roll which is coated with a release agent and transferring the coating from the carrier roll to the surface of the web by contacting the carrier roll bearing the coating with the web. The web material may be borne to the point of transfer by means of a chilled roll. The release agent may be a sleeve of fluorinated ethylene polymer or copolymer. The web may be polypropylene or thin-gauged aluminium foil and the coating may be of ethylene or an ethylene/vinylacetate copolymer.
Patent GB-929826-A (GB)
Title: Brake shoe retracting mechanism
IPC: F16D65/46
Filed: 1961-10-30
Abstract: 929,826. Internal shoe drum brakes. BENDIX CORPORATION. Oct. 30, 1961 [Dec. 5, 1960], No. 38769/61. Class 103 (1). Shoes 10, 12 are retracted away from the drum surface 30 by springs 48, 50 each of which extends between a bracket 34 or 36 on the back plate 41 and one end of a lever 54 which is swivelled on the back plate and also has a swivel connection with the web 17 of the respective shoe, whereby the retracting force on the shoes has no component acting towards or away from the back plate. The lever 54 is in the form of a rod and the swivel connection with the web 17 is by a rounded enlargement 56 of the lever engaging in an aperture 58 in the web. The connection with the back plate may take any of the forms shown in Figs. 2, 6 and 8, the first form comprising a strap 66 welded to the back plate and having a slot in which a neck 64 of the lever is received, the second and third forms comprising a keyhole type slot 76, 80, respectively through which the end 62 of the lever is passed to engage the neck 64 with the narrow end of the slot, the wide end of the slot being in one case filled with a rubber plug 78 and in the other ease covered by a springy plate 82 having a similar slot to enable it to be engaged with the neck 64. The shoes 10, 12 are mounted at one end on circular abutments formed on the brackets 34 and are acted on at both ends by two hydraulic cylinders 18, 20 via push rods 26, 28. The brackets 36 carry adjustable abutments 35 which take up clearance and also act as shoe mountings when the brakes are applied in the reverse direction of rotation of the drum to the normal direction shown by the arrow. The shoes are retained laterally by discs 42 mounted on pins 44 secured to the back plate, the shoe rims engaging guides 38, 40 on the back plate.
Patent GB-1308276-A (GB)
Title: Apparatus for cleaning gases through ionisation
IPC: B03C3/16
Filed: 1971-08-19
Abstract: 1308276 Electrostatic gas cleaning AEROPUR AG 19 Aug 1971 [24 Nov 1970] 39006/ 71 Heading B2J In apparatus for cleaning gases in which the gases to be cleaned pass through an ionic discharge conduit with discharge electrodes mounted on a shaft therein, the shaft is supported on a hollow insulator inside which is mounted a high voltage generator for the electrodes. As shown, hollow truncated conical discharge electrodes 24 are mounted on a shaft 22 inside a truncated conical conduit or flue 14. A hollow insulator 16 is firmly mounted at the base of the flue and encloses a high voltage generator 20 which is submerged in oil or sealed and is electrically connected to the shaft 22. Gas which enters at A is deflected by discs 26 to pass through the ionisation zones between electrodes 24 and the flue wall 14 down which a film of water or other gas absorbing liquid runs from sprays 28. In a modification (Fig. 2, not shown) the insulator 16 is rotatably mounted.
Patent GB-1517977-A (GB)
Title: Gamma correction circuit for a colour television camera
IPC: H04N9/69
Filed: 1975-09-25
Abstract: 1517977 Gamma corrction circuits ROBERT BOSCH GmbH 25 Sept 1975 [28 Sept 1974] 39289/75 Heading H4F A circuit for gamma correction in a colour television camera having a luminance signal channel 3 and at least one colour component signal channel 4, comprises a test signal generator 18, switches 16, 17 for selectively connecting the output of the generator to channels 3 and 4 in place of the respective camera tubes 1, 2 normally connected to those channels, a comparison circuit 21 having its inputs connected to the outputs of respective gamma correction circuits 8, 12 in the channels 3, 4, the comparison circuit providing a control signal dependent upon the difference between the signals at its inputs, and a motordriven potentiometer 28 responsive to the control signal from the comparison circuit for adjusting the gamma correction circuit 12 of the colour component signal channel 4. Channel 3 contains an aperture corrector 7. An adjustable resistance 26 is provided in circuit 21 to compensate for any differences in delay time and/or level between channels 3 and 4.
Patent GB-830016-A (GB)
Title: Improvements in or relating to co-axial cables
Inventor: TATE CLIFFORD EDWARD
IPC: H02G15/08
Filed: 1956-12-28
Abstract: 830,016. Coaxial line networks. PLESSEY CO. Ltd. Dec. 30, 1957 [Dec. 28, 1956], No. 39458/56. Class 40 (8). D.C. insulation is provided in a coaxial line by cutting the inner conductor and placing a layer of dielectric between the cut end surfaces to form a capacitor at the adjoining ends, the radial dimensions of the inner and outer conductors 1 and 2 are increased in the same constant proportion up to a plane 3-3 to form members 5 and 6 and provide a line of substantially constant characteristic impedance. At the plane 3-3 a thin layer 4 of mica, well mixed with silicone grease, is interposed between the members 5 so that they are coupled by a capacitor. The radial dimension of the members 5 at the plane 3-3 is such as to provide the desired capacitance with a low impedance at the working frequency.
Patent GB-1522823-A (GB)
Title: Gas panel display device drive circuitry
IPC: H03K3/286
Filed: 1975-09-29
Abstract: 1522823 Integrated circuits INTERNATIONAL BUSINESS MACHINES CORP 29 Sept 1975 [14 Nov 1974] 39720/75 Heading H1K [Also in Division H3] An integrated circuit comprising 36 latching drivers (Figs. 3 and 4, not shown, see Division H3) is formed on a P-type silicon wafer 60. Each latching driver comprises a high voltage switch formed by a series-connected pair of complementary transistors controlled by a silicon controlled switch formed by a reciprocally coupled complementary pair of transistors T2, T3. A N + sub-collector region 76 is diffused on to the wafer 60 and an N-type epitaxial layer 62 grown on top. P+ isolation region 64 is diffused into the epitaxial layer 62 to form isolation islands (Figs. 5a, 5b, not shown). Diffusion 66 forms the collector of transistor T2 and the base of T3 of the silicon controlled switch. Diffusion 68 forms the base of T2 and the collector of T3. Epitaxial region 70 forms the emitter of T2 while diffusion 74 forms the emitter of T3. A metallized layer (90) (Fig. 5b, not shown) forms a connection to the emitter 74 of T3 whilst a further metallized layer (92) formed over region 66 forms a connection to the collector of T2 and a guard ring for the silicon controlled switch. The region 76 forms the emitters of two PNP transistors T18, T22 of the high voltage switch. Part of the diffusion 64 serves as a base for T22, region 80 of the epitaxial layer 62 serves as the base for T18. Diffusions 78 and 68 form the emitter and collector of T18. Substrate 60 forms the collector of the vertical transistor T22: region 64 forms the collector of the lateral transistor T18. Metallization (94) connects with the emitter diffusion 78 for transistors T18, T22 and of an NPN transistor (T4, not shown).
Patent GB-1377560-A (GB)
Title: Scavenging and charging two-stroke internal combustion engines
IPC: F02B29/00
Filed: 1972-08-25
Abstract: 1377560 Scavenging and charging two-stroke engines BRUNSWICK CORP 25 Aug 1972 [27 Aug 1971] 39837/72 Heading F1B The exhaust ports 21 of the or each set of three cylinders operating with 120 degrees firing intervals are in communication with a common chamber 26 or 27 connected to an exhaust passage 37, 38 or 45, 46, 47 which is in communication with an expansion chamber 39 to produce a negative pressure pulse during the exhaust of one cylinder to aid scavenging of the one cylinder. Exhaust from the next cylinder to fire produces a positive pressure pulse which acts through the common chamber 26 or 27 together with a positive pulse produced when the exhaust pressure wave of the one cylinder passes beyond the passage 37, 38 or 45, 46, 47, to supercharge the one cylinder. The passage portions 38 and 47 are of increasing cross-sectional area in the direction of their outlets to the common expansion chamber 39 and the length and increase in cross-sectional area of these passage portions control the timing and amplitude of the negative pressure pulse. The timing of inlet and exhaust port opening and closure is set out in the Specification. The engine 11 may have nine in-line cylinders or six cylinders in a V.
Patent GB-1170186-A (GB)
Title: Relay Contacts and Method of Manufacture of Same.
Inventor: FREEMAN ALBERT LESLIE
IPC: H01H11/04
Filed: 1968-08-21
Abstract: 1,170,186. Making relay contacts. STANDARD TELEPHONES & CABLES Ltd. 21 Aug., 1968, No. 39925/68. Heading B3A. A method of making an electrical contact includes welding the end of a coated contact wire 1 to a strip of spring metal 2, severing the welded end 4 of the wire from the remainder thereof by means of a pair of pinching cutters to leave a chisel ended stud welded to the strip and shaping the stud by impact of a shaped die. The action of the cutters draws the coating towards the apex 5 of the cut so that the whole surface of the contact, which may be hemispherical in shape, is covered with the coating. The contact wire 1 is of gold coated silver and only the silver is welded to the spring 2, the gold contacting the spring around the circumference of the weld.
Patent GB-999891-A (GB)
Title: Improvements in or relating to the production of sheets having colloid relief images
IPC: G03F7/34
Filed: 1961-11-08
Abstract: 999, 891. Photographic relief image. W. RITZERFELD, and G. RITZERFELD. Nov. 8, 1961 [Nov.10, 1960; Jan. 12, 1961; April 6,1961(2); April 27,1961], No.39982/61. Drawings to Specification. Heading G2C. A colloid e.g. a gelatin silver halide emulsion is exposed imagewise, turning developed or wetted with alkali, contacted with a carrier sheet which has a layer or impregnation of tanning developer if the emulsion has been wetted with alkali and then separated so that the hardened portions of the emulsion are transferred to the carrier sheet and leaving a colloid relief image on the emulsion. The transfer may be aided by heating or by incorporating ethylene glycol, ethylene chlorohydrin or triethanolamine in the emulsion, developer or carrier sheet. Before contacting with the carrier sheet, the emulsion may be wetted with an alkaline solution of a compound of Formula I-III which stabilize the developer. The carrier sheet, which may be impregnated with pyrogallol or pyrocatechol, p- or o-phenylenediamine and ascorbic acid, may be perforated along one edge so that it may be folded over the silver halide colloid layer. A hectographic ink transfer sheet having a layer containing one ink and stearin may be used as the carrier sheet or, it may be contacted with the developed emulsion so that the colloid relief image adheres to the transfer sheet. In this last embodiment, the transfer sheet is glued along one edge to a support sheet and the sheet with colloid relief image is placed in between. Preferably, the transfer sheet is perforated near its glued edge. The colloid silver halide layer may contain a leuco compound of a dye so that after formation of the colloid relief image, the layer is oxidized to form a dye. Both the silver halide layer and the carrier layer may be transparent. After the formation of the colloid relief image, this layer may be re-exposed and tanning developed.
Patent GB-1049860-A (GB)
Title: Improvements in longwall mining machines
Inventor: PENTITH GERALD RICHARD
IPC: E21C27/02
Filed: 1962-10-23
Abstract: 1,049,860. Mineral-mining machines. COAL INDUSTRY (PATENTS) Ltd. Oct. 18, 1963 [Oct. 23, 1962], No. 40073/62. Heading E1F. At either end of the motor-containing body of the machine which travels along on top of a face conveyer there is a vertical swingable arm supporting for rotation about an axis transverse to the direction of movement of the machine along the conveyer a cutter drum, the cutter drum being laterally offset of the body.