baber/WOPTO huggingface dataset:
Patent GB-325866-A (GB)
Title: Improvements in internal combustion engines utilizing the gaseous mixture obtained from the electrolysis of water
IPC: F02K9/00
Filed: 1928-10-30
Abstract: 325,866. Firpo, C. Oct. 30, 1928. Hydrogen and oxygen, obtaining; cells; electrodes; diaphragms.-An internal-combustion engine uses a mixture of hydrogen and oxygen as fuel, the engine driving an electric generator 2 which supplies the current for the electrolysis of a caustic soda solution in a gas generator 3. Tiie casing of the gas generator acts as one electrode; the central electrode 7 is surrounded by a water-permeable cylinder projecting above the level of the liquid in the generator. The generator as shown is built against the engine but it may be separate and heated by the engine exhaust. The mixture formed in the top of the generator is led by a pipe 11, with an adjustable loaded check valve in its length, into a storage tank for the electrolyte, the mixture bubbling through the latter. It is led thence to the carburettor.
Patent GB-488526-A (GB)
Title: Improvements in or relating to arrangements of carbon or like transfer sheets
IPC: B41J17/00
Filed: 1937-11-17
Abstract: 488,526. Carbon - sheet holders. WILKES, JUN., J. Nov. 17, 1937, No. 31555. [Class 16] In a carbon-sheet holder consisting of a backing sheet 1, formed with cross slots 2 for attachment of the carbon sheets 3 and passage of the copy sheets, the backing sheet is strengthened at the ends of the slots, preferably by folding over and gumming down the edges. The top edge of the backing sheet may also be strengthened. The backing sheet may be formed with a slot 6 for the original sheet, and a slot 9 for the pack of sheets. The slots 2 may be of different lengths to facilitate the use of copy sheets of different sizes. The backing sheet may extend to the bottom of the carbon sheets.
Patent GB-506147-A (GB)
Title: Improvements relating to flexible insulated electric wires
IPC: H01B7/04
Filed: 1938-11-01
Abstract: 506,147. Flexible cables. CELLOPRENE, Ltd., and LEON, M. Nov. 1, 1938, No. 31574. [Class 36] To prevent tangling and untwisting, of a flexible lead comprising two or more insulated conductors stranded together, the lead is helically and tightly wound with an elastic rubber thread which may be bare or covered with fibrous material. The thread may be spun around the lead as the latter passes to the usual coiling devices at the conclusion of the flex manufacturing operations. An outer braided covering may be applied over the winding of rubber thread.
Patent GB-1472988-A (GB)
Title: Constant current source temperature compensation network
IPC: G05F3/26
Filed: 1974-07-17
Abstract: 1472988 Automatic current regulation RCA CORPORATION 17 July 1974 [3 Aug 1973] 31585/74 HeadingG3X A temperature-compensated constant current circuit includes a voltage source in the form of a conductive semi-conductor P-N junction, a resistor connected across the source, and a series combination of a resistor and a P-N junction also connected across the source. As shown in Fig. 2, transistors 22, 24 are supplied from a source B+, and the base and emitter of transistor 22 form a voltage source supplying current to a fixed resistor 29 and a resistor 35 connected in series with a diode-connected transistor 25. The values of the resistors are chosen so that, when the ambient temperature rises, the decrease in current in resistor 29 due to falling base-emitter voltage of transistor 22 is compensated by increased current in resistor 35 due to a smaller potential drop across transistor 25, producing substantially constant current flow in the main current paths of both transistors 22, 24. The regulator circuit is connected to the source B+ by way of a starting transistor 50 and a current repeater circuit in the form of an amplifier 10, 11, 12, 14, 15, 21, 23 receiving an input signal at point D and producing a proportional output current at point A, the ratio of output to input depending on the number of parallel diode-resistor paths 10, 14 and 11, 15 used. Loads requiring constant current may be connected in any of paths A-A', C-C', D-D' or between terminal G and a reference potential. In a modification, Fig. 3 (not shown), the effect of the collector-emitter output impedance of transistor 25 is reduced by connecting a further transistor (30) between point D' and the collector of transistor 25, in cascade with transistor 24.
Patent GB-1007698-A (GB)
Title: Chain stitch device for lock stitch sewing machines
IPC: D05B1/14
Filed: 1964-08-04
Abstract: 1,007,698. Sewing machines. SINGER CO. Aug. 4, 1964 [Aug. 7, 1963], No. 31661/64. Heading D1G. A lock stitch sewing machine, modified to produce chain stitching, comprises a work support formed with a needle aperture, a rotary looptakes disposed beneath said support, a bobbin-supporting case journalled in the looptaker and constrained from rotation therewith, a stationary thread loop engaging finger carried by the machine frame and disposed beneath the work support in advance of the needle aperture and parallel to the path of needle reciprocation, opposed spring and abutment means arranged between the frame and bobbin case in advance of the thread loop engaging finger for resiliently constraining passage of thread loops from the looptaker to said finger until the loops are tightened by the needle thread take-up, and a reciprocating element disposed between the needle aperture and said finger for stripping the thread loops from the latter when the needle penetrates the needle aperture. A conventional lock stitch sewing machine comprising a vertical axis rotary hook 32 formed with a loop-seizing beak 33 and journalling a bobbin case 34 constrained from rotation by a spring 36, is fitted with a modified throut plate 52 formed in its under surface with a recess 72 in which a bar 70 and a leaf spring 76 are severed by a screw 71. A finger 74 depending from bar 70 engages a leaf spring 80 fixed by a saw 81 to the bobbin case 34, and a protrusion 79 on spring 80 engages an abutment 82 on the bobbin case. Needle thread loops seized by beak 33 are transferred in succession from the looptaker to finger 74. As the needle 19 descends through the needle aperture, which is elongated in the direction of work feed, to carry a fresh loop TsTw through the previous loop Tl held on finger 74, the feed dog 49 also descends, whereby a web 50 thereon engages loop Tl to strip the latter from finger 74. Loop TsTw, when shed by the looptaker, is initially retained between protrusion 79 and abutment 82 until tightened by the take-up to overcome the resistance of spring 76 and thereby engage finger 74. The bobbin thread is concatenated with the needle thread loops, but lies on the undersurface of the work and may be readily drawn out of the seam.
Patent GB-1516874-A (GB)
Title: Affixing metallic contacts to electrical resistance elements
IPC: H01C17/28
Filed: 1975-07-29
Abstract: 1516874 Electric resistance heating WACKER CHEMIE GmbH 29 July 1975 [30 July 1974] 31672/75 Heading H5H [Also in Division C3] A conductive terminal strip is attached to a flexible sheetlike electrical resistance heating element by an electrically conductive, heat vulcanizable adhesive and after vulcanizing, the conductor strip is stretched at room temperature to the length it had at the vulcanizing temperature. By this means, wrinkles are removed that would otherwise, in use, cause rapid deterioration of the element. The conductor strip is of woven or non-woven aluminium, copper or silver, and the resistance heating element a non-conductive plastics film or fleece or a woven or non-woven glass fabric with a resistance coating on both sides preferably of carbon dispersed in a silicone polymer. The adhesive may be a silicone base with dispersed carbon powder. "Prior art" is described using cold-setting adhesives (e.g. acrylate or silicone) containing copper turnings or silver or carbon powder. An exemplary conductive adhesive involves mixing of a divinylsiloxy-terminated diorganopolysiloxane with vinylmethylsiloxane, dimethylpolysiloxane silicon dioxide perchloroethylene and acetylene black. After standing the dispersion is diluted with more perchloroethylene and small amounts of platinum IV chloric acid and a mixed polymer of methylhydrogenosiloxane and dimethyl siloxane is added. This adhesive is curable at 300C.
Patent GB-1045089-A (GB)
Title: Side seal bags and method for their production
IPC: B65D33/02
Filed: 1963-08-12
Abstract: 1,045,089. Plastics bags. NATIONAL DISTILLERS & CHEMICAL CORPORATION. Aug. 12, 1963 [Sept. 11, 1962], No. 31789/63. Heading B8K. The tendency for the side seals 14, 15 of a plastics bag, with panels 10, 11 and flap 12, to separate when the bag is opened for filling is reduced by forming cut-outs at the bag mouth. The cut-outs may be notches 18, 19, Fig. 2, which spread the stresses, produced when opening the bag, along the side seals and remove the imperfect ends of these seals. Alternatively, an elongated notch 30, Fig. 3, is formed which merely spreads the stresses. The bag may be flat or gusseted along its sides.
Patent GB-222074-A (GB)
Title: Improvements in taximeters
IPC: G07B13/00
Filed: 1923-12-18
Abstract: 222,074. Martin, T., and Blikstad, M. Sept. 19,1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Ticket apparatus in taximeters.-Means are provided for printing the fare on a strip of paper which is cut off and delivered to the passenger when the flag is reset. The counting mechanisms 8, 9 for the fare are furnished with type wheels, and the paper strip 5 is fed from a roll 4 in a compartment 3. A copying ribbon 7 is led between rollers 6, 10, and the paper and ribbon are pressed against the type wheels at the end of a trip by a plate 12 actuated by the flag lever 13 through a cam 22 on an intermediate shaft 21. The counters are zeroized by movement of the lever 13. The paper feed rolls 24 are driven by the shaft 21.
Patent GB-1317659-A (GB)
Title: Pressure responsive indicating devices
IPC: G01L7/08
Filed: 1970-07-01
Abstract: 1317659 Pressure indicator KURODA SEIKO CO Ltd 1 July 1970 [2 July 1969] 31860/70 Heading G1L A device indicating the presence or absence of fluid e.g. air, under pressure comprises a body member 10 having its front end closed by a transparent cap 5, a piston 4 slidably movable against a spring 20 within the body member 10 under the action of fluid-pressure, and a slitted membrane 3 of plastics or thin metal positioned beneath or behind the cap. In the absence of fluid-pressure the spring 20 urges the piston 4 towards the closure 16, whereas when fluidpressure is applied through a bore 18 the piston is forced against the action of the spring through the slitted membrane 3 so that it is visible in the transparent cap region. The membrane may be circular or rectangular and may be slit and provided with holes or slots in various ways, Fig.2 (I-VI) (not shown).
Patent GB-536736-A (GB)
Title: Improvements in and relating to packages or cartons
IPC: B65D5/42
Filed: 1939-12-09
Abstract: 536,736. Cartons. BROOKE, N., and BROOKE BOND & CO., Ltd. Dec. 9, 1939, No. 31905. Addition to 531,211. [Class 18] One or more side panels e of a carton as claimed in the parent Specification is or are provided with a readily removable stamp or like portion f. The detachable portion is defined by perforations or other lines of weakness. The rear surface of the portion f may have a dry adhesive coating so that it can be made to adhere to a collecting card or like.
Patent GB-306609-A (GB)
Title: Improvements in crushing machines having vibrating jaws
IPC: B02C1/10
Filed: 1927-11-28
Abstract: 306,609. Vale, F. M. Nov. 28, 1927. Crushers with vibrating jaws.-The jaws of a stonebreaking machine are provided with teeth 1 of coarse pitch on which a second series 2 of smaller pitch are superimposed. The vibrating jaw may be curved in the direction of the length of the teeth, the curvature being convex toward the opposite jaw. The fixed jaw may also be curved.
Patent GB-729955-A (GB)
Title: Improvements in fuel-injection pumps for internal combustion engines
IPC: F02D1/00
Filed: 1952-12-17
Abstract: 729,955. Starting oil engines. RETEL, J. M. R. Dec. 17, 1952 [Dec. 18, 1951], No. 31965/52. Class 7(3). [Also in Groups XXVIII and XXIX] In a fuel-injection pump (see Group XXVII), the delivery is controlled by a sleeve 33 cooperating with a spill port 32 in the pump plunger and adjustable axially by fuel pressure in the chamber 34 which varies with the speed. The sleeve carries a rocker 72 one end of which co-operates with a cam 73 that is operated by lever 82 that has a stop 83 which determines the normal maximum fuel supply and can be moved to stop the engine. The other end of the rocker co-operates with a cam 74 that is actuated by a lever 84 that has a stop 86 which determines the maximum speed of the engine. The cam 74 can move the rocker 72 against the loading of the spring-pressed plunger 76 to permit extra fuel for starting.
Patent GB-1510850-A (GB)
Title: Electrically operable refrigerator
IPC: F25D/
Filed: 1975-07-31
Abstract: 1510850 Refrigerators NECCHI SpA 31 July 1975 [10 March 1975] 32038/75 Heading F4H [Also in Division H2] To facilitate inspection of the terminals of, or replacement of, a mains electric cable for, the electric motor of a motor-compressor unit located in a compartment 12 in a refrigerator casing 10, the housing 14 of the motor-compressor unit is provided with a terminal board 24. The terminal board comprises elongate conductors 26 which are separated from each other and form a wall member 32 by insulating walls 30. Each conductor 26 has a terminal portion 34 at one end, connected to the refrigerator electrical components, and, at the other end, has a portion inclined at 45 degrees to the surface of the board, and provided with a screw 38 for connection of the cable conductors.
Patent GB-1074236-A (GB)
Title: Animal feed compositions comprising dihydroquinoline salts
IPC: C07D215/20
Filed: 1964-08-06
Abstract: The sulphuric acid salt of 6-ethoxy-2,2,4-trimethyl-1,2 -dihydroquinoline is prepared by reacting 6 - ethoxy - 2,2,4 - trimethyl - 1,2 - dihydroquinoline with sulphuric acid in the presence of acetone.ALSO:An animal feed composition comprises a dihydroquinoline salt of p  the general formula <FORM:1074236/A1-A3/1> wherein n is 1 or 2, R is a straight or branched chain alkyl or alkoxy group containing 1 to 5 carbon atoms, or phenyl, benzyl, phenoxy or benzyloxy and Y- is an anion.  Examples describe the use of salts of 6-ethoxy-2, 2, 4-trimethyl-1, 2-di hydroquinoline to prevent loss of vitamins in alfalfa, mixtures of corn oil and alfalfa, and fish meal.
Patent GB-365649-A (GB)
Title: Improvements in or relating to electrical apparatus by utilisation of phenomena associated with the ionisation of gases
IPC: G01R15/14
Filed: 1930-10-25
Abstract: 365,649. Pressure meters. JOHN, W. J., 134, Brighton Road, Purley, Surrey. Oct. 25, 1930, No. 32079. [Class 37.] A gaseous discharge tube is arranged in the electric field between two points, the voltage between which it is desired to measure, without a conductive connection to these points. As shown, two metal plates 1, 2 are connected to the points between which the pressure is to be measured, the plate 2 being carried on an insulator 5 and the plate 1 being earthed and mounted on carriages 6 rolling on bars 7. A gaseous discharge tube 3 is mounted on, but insulated from, the plate 1, or may be supported in the space between the plates 1, 2. The plate 1 is moved towards the plate 2 until the voltage gradient across the tube 3 is just sufficient to cause discharge to take place, this point being determined by observing the glow of the tube directly or by its effect ona lightsensitive cell, or by passing the discharge current through telephones, as shown, or a loud-speaker, a relay closing an alarm circuit, or an ammeter after amplification if necessary. The voltage is then indicated on a scale 4 by a pointer 8 attached to the plate 1. Alternatively both plates 1, 2 may be fixed, the tube 3 being mounted so that the angle between its axis and that of the plates 1, 2 may be varied until the tube just glows, this angle then being a measure of the voltage. In a further modification the plates 1, 2 are arranged at a fixed distance apart such that the tube 3 is conductive throughout the range of voltage to be measured, the current flowing through the tube being measured, after amplification if necessary. If the electric field is sufficiently powerful, the plates 1, 2 may be dispensed with. Two or more tubes may be arranged in parallel to give the effect of a single large tube.
Patent GB-645025-A (GB)
Title: Improvements in apparatus for converting multiphase alternating current into single-phase alternating current
IPC: H02M5/38
Filed: 1947-12-05
Abstract: 645,025. Phase changing. RESISTANCE WELDERS, Ltd., CUMMING, W. R., and ROSS, G. A. Dec. 5, 1947, Nos. 32190/47 and 27396/48. [Classes 38 (ii) and 38 (iv)] Apparatus for converting a multiphase A.C. into a single-phase A.C. comprises a transformer having primary and secondary windings, ignitrons or like gas discharge tubes connected to pass current from each phase to one or more primary windings, ignition means operating in synchronism with the multiphase A.C. to render the ignitrons or the like conductive in succession to connect each phase to a primary winding for a period not exceeding one cycle of the multiphase A.C. to cause a single-phase A.C. to flow in the secondary winding. The secondary winding 32 of a welding transformer 31 supplies a single-phase load such as the electrodes of a resistance welding system, the primary windings 35-37 being successively energized from a three-phase supply S through a switching arrangement comprising ignitron couples 41-43 and a rotary switch 38. When the rotary switch has reached a position where the segment 45 connects together a pair of brushes 51, and when the ganged welding control switch 64-66 is closed, the ignitron couple 55, 56, connected back-to-back, ignite to permit a complete cycle of current to flow in the primary winding 35. The segments are so placed that during the next one-third of a cycle neither primary winding is energized. After this period brushes 52 are connected together and a complete cycle of current flows in the primary winding 36 and after another one-third of a cycle of no energization the primary winding 36 is energized for a cycle, and the operation is then repeated. The output from the secondary winding is thus a single-phase alternating current having, if the three-phase supply frequency is 50 c.p.s., a frequency of 37¢ c.p.s. In another embodiment fed from a three-phase supply the welding transformer has six primary windings fed by three ignition couples having their firing points controlled by thyratrons. The thyratron grids are so biassed that the tubes pass current to ignite the ignitrons only during the last one-third of each half-cycle, the sequence of energization of the primary windings being : the first winding positively energized for one-third of a half-cycle, the second winding negatively energized for a third of a half-cycle, the third winding positively energized for a third of a half-cycle and so on, there being no periods during which no winding is energized. The secondary winding thus delivers a single-phase alternating current of three times the frequency of the three-phase supply. Large limiting devices limit the voltage across the primary windings to a safe value.
Patent GB-1196271-A (GB)
Title: Phosphors
Inventor: AIA MICHAEL A
IPC: C09K11/83
Filed: 1967-07-13
Abstract: 1,196,271. Luminescent materials. GENERAL TELEPHONE & ELECTRONICS LABORATORIES Inc. 13 July, 1967 [14 July, 1966], No. 32250/67. Heading C4S. A phosphor composition has the empirical formula R y S 1-y P x V 1-x O 4 , where 0À99 > y 0À95; 1 > x > 0, S is a rare earth element and R is Y, Gd, Lu or La or y = 1; 1 > x > 0 and R is Y, Gd or Lu. The phosphor is prepared by heating a mixture of R 2 0 3 , NH 4 VO 3  and (NH 4 ) 2 HP0 4  first at 450‹ C. then at 1000‹ C.; unreacted V 2 0 5  is subsequently removed with hot NaOH. Preferably is between 0À25 and 0À75 and S is Eu, Dy, Ho or Er. Specification 1,074,530 is referred to.
Patent GB-1433809-A (GB)
Title: Spindle connecting apparatus for a spooling or winding machine
IPC: B65H54/74
Filed: 1973-07-06
Abstract: 1433809 Spindle drives SCHWEITER ENG WORKS Ltd (MASCHINENFABRIK SCHWEITER AG) 6 July 1973 [10 July 1972] 32296/73 Heading D1J The axial movement of a winding spindle to engage a drive shaft is clamped to provide a gradual engagement. To engage friction wheel 5 of spindle 2 with drive wheel 4, shaft 7 is depressed to and locked to the position shown, spring 14 moves member 11 on shaft 7 to lower spindle 2, and dashport 22 clamps the motion of member 11 and the spindle. To disengage the wheels, catch 27 is released, and spring 21 raises member 11, the spindle 2 and wheel 5.
Patent GB-175724-A (GB)
Title: Improvements in and connected with centrifugal governors
IPC: G05D13/10
Filed: 1920-11-16
Abstract: 175,724. Arrowsmith, G. Nov. 16,1920. Centrifugal governors.-In a centrifugal governor a speed-setting spring C engages at one end a lever L, which is operated by the governor weights, and at the other end is connected to a crank-arm A. which may be turned about the axis B by a hand-wheel H and worm-gearing to move the end of the spring into any position between the limits X, X<1>. In the position X<1> the spring is in its most effective position and at its greatest tension. The arm A may be half the length of the spring, and its axis B may be in the line of maximum effort of the spring.