baber/WOPTO huggingface dataset:
Patent GB-1522091-A (GB)
Title: Propylene oxide reaction products process for their manufacture and their use
IPC: C08G65/32
Filed: 1976-04-01
Abstract: 1522091 Dyeing assistant CIBA-GEIGY AG 1 April 1976 [4 April 1975] 13268/76 Heading D1B [Also in Division C3] A polyester, which may be used as a dyeing or printing assistant, is derived from an adduct of (a) an at least trihydric C3-10 aliphatic alcohol and (b) 1, 2 - propylene oxide, and from (c) an aliphatic dicarboxylic acid containing up to 10 C atoms or C8-12 aromatic dicarboxylic acid, and at least one of the following:- (d) an aliphatic diol, (e) a C12-22 fatty alcohol, (f) a C12-22 fatty acid and (g) a C2-12 aliphatic mono- or di-amine, with the proviso that (g) is used only when (c) is ethylenically unsaturated. Many Examples are given, e.g. the polyester derived from pentaerythritol, propylene oxide, maleic anhydride and polyethylene glycol, and Examples 45-52 describe dyeing processes using the above dyeing assistants.
Patent GB-1292188-A (GB)
Title: Combustion chamber with thrust nozzle for propulsion units of liquid-fuelled rockets
IPC: F02K9/64
Filed: 1970-03-19
Abstract: 1292188 Making rocket motors MESSERSCHMITT - BOLKOW - BLOHM GmbH 19 March 1970 [29 March 1969] 13291/70 Addition to 1274489 Heading B3A [Also in Division F1] In a combustion chamber and thrust nozzle as disclosed and claimed in parent Specification the body is formed form an alloy having the same thermal conductivity but greater strength than the basic oxygen free metal, e.g. copper alloyed with about 0À5% chromium.
Patent GB-274044-A (GB)
IPC: B60G11/113
Filed: 1927-05-18
Abstract: 274,044. Compagnie d'Applications MÚcaniques. July 6, 1926, [Convention date]. Flexible-unjointed hinges.-An elastic joint removable as a whole and specially applicable to vehicle shock-absorbers comprises a pivot and a sleeve connected respectively to relatively movable members with a lining of elastic material interposed between them, the lining engaging by means of circumferential ribs or grooves and having annular fabric insertions. In the construction shown in Fig. 2, the pin 7 is connected by an adjustable universal joint to a support 9 on the frame of a vehicle. The sleeve 6 is rigidly secured to an arm 4 of the shock-absorber and elastic material 14, such as rubber, is disposed between the pin and sleeve so as to yield by distortion for normal displacement and to slip when abnormal displacements occur. Annular fabric insertions 14<b> may be provided to prevent longitudinal movement of the pin relatively to the sleeve and circular grooves 20 may be provided on the sleeve and pin to prevent slip of the rubber. In a modification collars on the sleeve may be fitted to prevent separation in the event of breakage of the elastic member.
Patent GB-476738-A (GB)
Title: Improvements in and relating to multi-range electrical measuring instruments
IPC: G01R13/00
Filed: 1936-05-12
Abstract: 476,738. Current, voltage, resistance, capacitance, and power measurements. MACADIE, H. S., and AUTOMATIC COIL WINDER & ELECTRICAL EQUIPMENT CO., Ltd. May 12, 1936, No. 13406. [Class 37] A multi-range A.C.-D.C. measuring-instrument comprises a single moving-coil, transformer, rectifier, multiple switches and tapped resistors, the overall resistance being maintained constant on D.C. measurements and the transformer output to the rectifier being also constant on A.C. measurements, and a graded resistance adapted to be brought into shunt with the moving-coil and to opencircuit the extra-range shunt resistor. The graded shunt resistor 35 is connected with a fixed resistor 37 ; the switch 38 connecting these resistors, or resistors 36, 30 across the coil circuit 23 which includes the shunt and series resistors 27, 26, 25, the resistor 25 being employed for temperature corrections. A rectifier 20 is also connected in shunt to the instrument for protection should the D.C.- A.C. switches A, B be set wrongly. Protection on overload is given by an automatic cut-out 3. For the measurement of capacitance, a fixed condenser 61 is connected to a tapping on the transformer winding and the graded resistor 35 is adjusted to give full scale deflection for a given applied voltage. An unknown capacitance connected in series with condenser 61 can then be read off on the meter. Similarly small power measurements can be made by connecting a load resistance 62 to a tapping on the transformer winding, the readings corresponding to I<2>R values. The scale may also be marked in decibels in respect of a level of 50 millivolts on the power scale. A condenser of large capacitance may be connected in series with the load resistor 62. Specifications 404,015, 423,199,464,867,476,681, 476,682, and 476,683. are referred to.
Patent GB-475163-A (GB)
Title: Aeroplane wing flaps
IPC: B64C21/08
Filed: 1936-05-12
Abstract: 475,163. Controlling aircraft. GRAY, W. E. May 12, 1936, No. 13456. [Class 4] A slotted flap 2 forms part of an aeroplane wing 1 and a surface 3 is hinged to its leading edge ; the surface 3 is mechanically connected to the wing so that when the flap is moved from its inoperative position the leading edge of the surface 3 is lowered relatively to the wing, at least over part of its operative movement. As shown, the flap 2 is pivoted about an axis 5, and an arm 6 secured to the surface is connected by a link 7 to the wing. Movement of the flap 2 causes downward movement of the surface 3 to open the slot and aerodynamically balance the load on the flap 2. The link and arm may be arranged such that slight upward movement of the surface 3 takes place during the initial movement of the flap. Specification 176,909, [Class 4], is referred to.
Patent GB-134880-A (GB)
IPC: A01N59/10
Abstract: 134,880. Weeks, C. A. Oct. 11, 1918. Disinfectants.-A germicidal liquid, stated to be of the constitution C10H16OCl2, to be of an acid nature by reason of the presence of hydrochloric and other unidentified acids, and to contain 25- 50 per cent, preferably 31, of chlorine, is made by passing dry chlorine into eucalyptus oil or eucalyptol at a temperature of 100 to 125‹ F., with or without the presence of air or ozone. The compound is soluble in paraffin, alcohol, and ether and is miscible with water, unguents, &c.
Patent GB-1391728-A (GB)
Title: Cigarette lighter
IPC: F23Q2/28
Filed: 1972-03-22
Abstract: 1391728 Cigarette lighter RONSON CORP 22 March 1972 [23 March 1971] 13503/72 Heading F4F A cigarette lighter comprises a casing 11 accommodating a Piezo-electric ignition device actuable by means of a finger-pressure element 32 and a fuel container 12 of plastics material containing, in a bore 16 therein, a Piezoelectric crystal 21 held in a stressed condition by a locking element 23, 24. The end of an anvil 22 secured on the crystal 21 projects into a chamber 28 containing a hammer 30 mounted on a pivot pin 29. The finger-pressure element 32 is located on a slide 33 reciprocally mounted in a guide passage and biased toward the inoperative position by a spring 40. The slide 33 has a resilient tensioning element 34 attached to it to rotate, on depression of the fingerpressure element 32, the hammer 30 against the action of a spring 31 until a shoulder (44, Fig. 2, not shown) displaces the tensioning element 34 from a notch 35 on the hammer 30 so that it strikes the anvil 22 causing the Piezo-electric crystal 21 to form a spark across electrodes 26 and 27. Depression of the finger-pressure element 32 also causes a control edge 42 to displace a lever 39 and open a burner valve 37 to allow gas to issue from it and be ignited by the spark produced across the electrodes 26 and 27, and the slide 33 to uncover an opening 36 in the easing 11 to allow the flame to issue from it.
Patent GB-583076-A (GB)
Title: Improvements in or relating to thermal power plants
IPC: F02C3/26
Filed: 1944-07-14
Abstract: 583,076. Gas heating furnaces. AKT.-GES. FUR TECHNISCHE STUDIEN. July 14, 1944, No. 13513. Convention date, July 17, 1943. [Class 64 (i)] [Also in Groups XXVI and XXVII] In a hot-air or gas-power plant operating on a closed cycle in which the working medium, preferably air, is heated in a heater 1 connected to a gas generator 12 before being expanded in a turbine 4 and after being expanded is compressed in a compressor 6 before being heated again in the heater, the heater has a heating system to which the gases used to heat the working medium are supplied from the heater and the gas used in the heater, the air supplied to the generator and the air supplied for combustion in the heater are heated in the heating system. Air at a temperature of at least 400‹C is supplied through a pipe 13 to the gas generator 12' to produce gas which is burnt in the heater 1. The gas is cooled in a chamber 14 by a jet of water 25 in order to condense any steam or tar-like substances carried over from the generator. The water is removed at 26 and the tar-like substances pass 'through a pipe 27 back to the generator. From the chamber 14 the gas passes through a pipe 15 to a heating system 16, placed after the heat exchanger of the heater in the direction of flow of the flue gases, and then to a burner 18. Air for supplying the generator and the burner enters at 20 and passes through a heat exchanger 21, placed after the heat exchangers 2 and 16 in the direction of flow of the flue gases, to a pipe 22, which branches to supply the generator through pipe 13 and the burner through a pipe 19. By means of valves 23, 24, it is possible to control the proportions of air, entering at 20, which are delivered direct to the generator and burner without passing through the heater 21. This enables the temperature of the air supplies for the generator and burner to be controlled and varied independently. In a modification the cooling chamber 14 is in two parts, in one of which the air supply is heated before the gases are cooled and in the other-of which the hot gases from the generator are employed to heat the gases which have already been cooled to remove steam and tar-like substances. The heat exchangers may be arranged within the coolers for the heating gases. The heater may be connected to. a number of gas generators.
Patent GB-812635-A (GB)
Title: Improvements in or relating to electron discharge tube circuit arrangements
Inventor: PLAISTOWE DONALD LEOPOLD
IPC: H01J31/62
Filed: 1956-05-02
Abstract: 812,635. Television pick up tubes. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Feb. 14, 1957 [May 2, 1956], No. 13541/56. Class 39(1). In a cathode ray storage tube circuit a low velocity electron beam from a single gun, is split into two equal parts by an anode 7, Fig. 1, having two apertures 8, 9 and the parts are then aligned by respective pairs of plates 10, 12 ; 11, 12, plate 10 being common, plates 11, 12 carrying independently adjustable potentials from potentiometers, after which the beam parts are separately deflected by respective pairs of deflective plates which are energized by sawtooth waveforms of 500 cps (writing beam 3a) and 50 cps (reading beam 3b) and the writing and reading beams 3a, 3b are then passed through respective grids 21, 22 carrying independent DC potentials to impinge on a charge storage target comprising discrete conductive strips 20, Fig. 3, formed on an insulating carrier 19 on the other side of which are two signal plate ribbons, the grids and signal plate ribbons extending transversely to the target strips 19 and having a width less than half the height of the signal strips, the signal input being applied to signal plate 24, a carrier frequency being applied to grid 22 traversed by the reading beam and the output amplitude modulated signal (carrier amplitude modulated by the signal) being taken from signal plate 25. The signal plates are gold coatings on the " Pyrex " (Registered Trade Mark) carrier 19 and the target elements 19 are rectangular gold strips. The writing beam stores charges on the strip elements 20 the amount of stored charge varying with the signal potential applied to backplate 24. Grid 21 has a steady bias of -40 volts to prevent undesired secondary emission. The output from signal plate 25 is fed through circuits tuned to the carrier frequency to a display unit. The grid 22 may have an adjustable negative bias, e.g. of 10 volts if the peak carrier voltage applied thereto is 20 volts. An earthed screening plate 17, prevents crosstalk between the two screening fields. The gun has indirectly heated cathode 1, 2, beam forming grid 4, and anodes 5, 6 and 7. The signal/ noise ratio is reduced because ten writing scans (at 500 cps) take place for every reading scan (at 50 cps) the writing scan frequency being correlated with the radar pip repetition frequency so that each incoming radar pip is stored at the same point in the target, the noise and other irregularly occurring signals occurring irregularly in time and thus being of much smaller amplitude, i.e. not being additive in successive scans. The signal/noise ratio may be further improved by connecting two tube units in cascade in the same or separate envelopes.
Patent GB-1423636-A (GB)
Title: Dewaxing process for vegetable oils
IPC: C11B3/06
Filed: 1974-03-27
Abstract: 1423636 Purifying vegetable oils PROCTER & GAMBLE CO 27 March 1974 [28 March 1973] 13566/74 Heading C5C A process for dewaxing a refined vegetable oil having less than 0À1 wt. per cent soap and less than 0À1 wt. per cent free fatty acid comprises (a) chilling the oil to below 60‹ F. (b) maintaining at below 60‹ F. for a period longer than 1 hour, (c) mixing the oil from step (b) with an alkaline solution containing more than 1 wt. per cent but less than 2À5 wt. per cent of NaOH or its stoichiometric equivalent of other alkali, (d) agitating the mixture from (c) for at least 1/2 hour to disperse the oil without forming an inseparable emulsion and (e) separating the resultant mixture to provide a wax-containing. aqueous phase and a dewaxed oil. The alternative alkali may be KOH, NaHCO 3  or aqueous. NH 3 .
Patent GB-661496-A (GB)
Title: Improvements relating to electrical integrating meters and indicating instruments
IPC: G01R11/40
Filed: 1949-05-23
Abstract: 661,496. Supply meters; induction motors. MEASUREMENT, Ltd., HEWLETT, S. J., and WOLFENDEN, R. H. May 18, 1950 [May 23, 1949], No. 13664/49. Class 37. A polyphase meter has a rotor consisting of concentric portions a, b of conducting material separated by a zone c of insulating or high-resistance material, the driving elements consisting of shunt and series windings being associated with the outer portion a only, and the shunt windings being connected so as to produce a rotating field in a direction opposing the normal direction of rotation of the rotor. The rotor may be secured by a moulded plastic insulating ring; alternatively, the zone c may be die-cast. The rotating field generated by the shunt windings produces a torque in the portion b, in opposition to that produced in a by the series windings, and by proper selection the effect of interaction of eddy currents is reduced so that the meter registers accurately on all loads.
Patent GB-647110-A (GB)
Title: Improvements in two stroke cycle internal combustion engines started by compressed air
IPC: F02N9/04
Filed: 1948-05-21
Abstract: 647,110. Starting. AKTIEBOLAGET GOTAVERKEN. May 21. 1948, No. 13872. Convention date, May 22, 1947. [Classes 7(ii) and 7(v)] In a multi-cylinder two-stroke engine which is started by compressed air and has an exhaust driven turbine 3 driving a scavengine air compressor 5 which delivers through a conduit 6 to the scavenging ports controlled by the pistons, a valve 14 actuated independently of the scavenging air pressure closes the conduit 6 at starting to prevent the starting air slowing down the compressor 5 which is driven during the starting period by the starting air escaping through the exhaust pipe 2. As shown, the starting air is delivered from a compressed air cylinder through a valve 15 and pipes 7 to the cylinders 1, and the valve 14 is closed by the pressure of the starting air acting upon a spring-loaded piston 11. Alternatively the valve 14 may be actuated directly by hand, or conjointly with either a fuel control device or the control device for the starting air. The Specification as open to inspection under Sect. 91 comprises also a modification in which the valve 14 is a pressure actuated valve spring-loaded towards closing. This subject-matter does not appear in the Specification as accepted.
Patent GB-685034-A (GB)
Title: Improvements in apparatus for making artificial staple fibres
IPC: D01G1/08
Filed: 1948-05-24
Abstract: <PICT:0685034/IV (a)/1> Apparatus for spinning artificial filaments comprises a spinneret provided with an annular series of extrusion orifices for extrusion into a coagulating medium, means for converging, collecting, and drawing the filaments as they are extruded to cause the filaments to define an interior space surrounded by the filaments, and means within said space for directing outwardly momentarily against each filament a laterally-moving fluid stream, thereby producing points of reduced strength at spaced locations along the filament length.  Thus the filaments on passing through drafting rollers may be broken into regular staple fibres which may be further processed in known manner. The apparatus may be used for the spinning of viscose and cuprammonium regenerated cellulose, cellulose acetate and glass.  As shown in Fig. 1, a tank 10 containing a coagulating bath or other hardening or setting medium is provided with a spinneret 12, one end wall 14 of which is formed with an annular series of extrusion orifices.  The spinneret is fed by conventional means 16.  A godet wheel 18 above the bath pulls the extruded filaments 19 from the spinneret.  A tubular bearing 25 passes rearwardly through the centre of the wall 14 of the spinneret to the exterior of the tank and supports a rotatable shaft 28 provided at its front end with one or more radial impeller blades 30, which extend nearly to the said orifices.  As the impeller is rotated, the bath fluid is forced against successive extruding filaments, elongating a short portion thereof as at 31 and forming in it a weak spot.  The impeller is driven by drive means 35 in timed relation with the spinning pump, thus spacing the weak spots in the direction of travel of the filaments at substantially equal distances.  They are also progressively advanced in adjacent filaments (Fig. 6). If desired, the bath material may be projected from radial jet nozzles as in Fig. 4, these nozzles being carried on a hollow shaft rotatable in and passing through the tubular bearing 25.  In dry spinning processes jets of air or other gas, heated liquid or gas may be used to weaken the filaments physically or, in both wet and dry spinning processes, a liquid or gas having a chemical action may be employed.  Such liquids or gases include chlorine, nitrogen trioxide, solutions of sodium hypochlorite and soluble chlorates (having an oxidizing action), oxalic acid, formic acid, formaldehyde and carbon monoxide (reducing action), caustic soda, trisodium phosphate, ammonia (coagulation retardants for viscose and cuprammonium regenerated cellulose), alcohols, water, mineral and vegetable oils (coagulation retardants for cellulose acetate), and strong acids and salts such as aluminium sulphate (coagulation accelerators).  Specification 584,964 is referred to.
Patent GB-1310591-A (GB)
Title: Digital-to-analog converters
IPC: H03M1/06
Filed: 1970-03-23
Abstract: 1310591 Automatic current control ANALOG DEVICES Ltd 23 March 1970 [24 March 1969] 13999/70 Heading G3R [Also in Divisions G4, H3] To prevent errors due to changes in ambient temperature all the bases of transistors 34A-M, Fig 1B, in a digital/analog converter (see Division G4) are connected to a lead 112 connected to a control transistor 122 (Fig. 1A), matched to switching transistor 34A and adjacent it. Temperature changes affecting the current flow in transistor 34A will also affect transistor 122 so that a change in current is detected by amplifier 136 and results in a corresponding change in the power supply voltage on lead 38 and hence a change in the current flow through transistor 114, to return the current flow through the transistors to the required level. (For Figures see next page)
Patent GB-378469-A (GB)
Title: Process for the manufacture of calcium boride
IPC: C01B35/04
Filed: 1931-05-12
Abstract: Calcium boride is obtained by heating to a bright white heat, say 1700-2400 DEG  C., a mixture of carbon, calcium oxide or hydroxide or a calcium salt and boric acid or anhydride or a salt of boric acid. The calcium salts referred to are calcium carbonate, acetate, formate and borate.  The boric acid salts referred to are borax, tincal or calcium borate.  Carbon is added in the form of coke powder or charcoal.  The starting materials may be in a pulverized state and the calcium boride obtained may be purified by elutriating with ethylene bromide.  Electrical resistance heating may be employed in the reaction.
Patent GB-456504-A (GB)
Title: Improvements in and relating to slidable shuttle boxes
IPC: D03D49/52
Filed: 1936-05-19
Abstract: 456,504. Shuttleboxes for looms. SOC. ANON. A. SAURER, Arbon, Switzerland. May 19, 1936, No. 14154. Convention date, June 29, 1935. [Class 142 (iii)] A slidable shuttle-box for looms has a plurality of separate cells for the reception of shuttles, each cell being independently and detachably secured as a whole to a common carrier. The cells are formed by shuttle boxes 7, Fig. 3, secured at their ends by bolts 8 to a carrier frame 1 or by angle irons 7<1>, Fig. 5, secured by screws 15 to projections 16 on the frame 1. Each cell is fitted with two spring loaded brake members.
Patent GB-617100-A (GB)
Title: Improvements in or relating to telecommunication exchanges
IPC: H04Q1/18
Filed: 1946-05-10
Abstract: 617,100. Electric indicating systems. STANDARD TELEPHONES & CABLES, Ltd. May 10, 1946, No. 14200. Convention date, April 15, 1941. [Class 40 (i)] [Also in Group XXXIX] In a signalling system, different potentials, each characteristic of a different indication, are applied at one end of a signalling wire or wires and the same range of potentials is applied sequentially at the other end, and an interposed detector responds when a minimum difference of potential of predetermined magnitude and polarity exists between the ends of the wire. As applied to the control of a selector by a register controller, the register S, when set, applied, by means of wiper a, an appropriate potential over contacts of Ar, Br and Cr to one end of the primary winding of transformer T. The other end is connected to the wiper g of the selector switch, which is self-driven by magnet SM. At each step, a pulse of current passes through the transformer winding, owing to the difference in potential between the ends of the line, but only when wiper g is connected with a potential sufficiently positive with respect to wiper a is the pulse of sufficient magnitude and of correct direction to fire cold cathode tube L. The circuit is such that when this occurs, wiper g rests on the contact corresponding to that indicated by wiper a. The firing of the tube L allows anode current to flow through relay Gtr which breaks the stepping circuit and operates Ar. The latter relay breaks the anode circuit and releases Gtr, but maintains the stepping circuit open. A protective arrangement is incorporated which operates if, owing to a faulty circuit, wiper g stops on a terminal beyond the correct one, by testing whether the tube will still fire if the potential is reduced by one step. Bank contacts bare multipled to contacts of bank a, contact 1 in b being connected to contact 2 in a and so on. When wiper g stops and. Ar operates Br operates in series with it and a new anode connection to tube L is now taken to a point of potential equivalent to one contact back. If the tube again fires, Gtr operates Cr, which locks, extinguishes the tube and gives a fault indication. In this Figure the rectifiers R1, R2 reduce any reverse voltage surge which might tend to trigger valve L, while R3 provides a low resistance path for any such voltage which might nevertheless appear across the transformer T. The potentiometer P is used to adjust the initial setting of the triggering voltage.