baber/WOPTO huggingface dataset:
Patent GB-401805-A (GB)
Title: Improvements in electrical fire alarms
IPC: G08B17/06
Filed: 1932-07-09
Abstract: 401,805. Thermal switches. VIGILANT AUTOMATIC FIRE ALARM CO., Ltd., 183, Cashel Street, Christchurch, New Zealand. July 9, 1932, No. 19469. Convention date, July 10, 1931. [Class 38 (v).] Relates to fusible switches for fire alarm systems wherein operation of the switch due to heat first allows a closed circuit to open, and then causes an open circuit to be closed. A base 1, Fig. 1, with a cover 7, carries an insulating plate 2 on which are mounted terminal posts 8, 11, 13. The post 8 carries a spring contact 9 which is held, by a rod 18 and a fusible retainer, in contact with a lower contact point 10 on the post 11. The post 13 carries a spring contact 14 which lies between the contact 9 and an upper contact 15 on the post 11. The rod 18 is guided in an adjustable tube 22, Fig. 8, and is connected at its lower end to a screw 25 projecting from a heat-collecting vane 25a. The vane has a slot 25c free to slide on a pin 25d carried by a sleeve 26 below the tube 22, but is retained in its lowered position by fusible metal 27 engaging recesses 25b in the vane. When the metal fuses, the rod 18 is free to rise, releasing the spring contact 9. In a modification, Fig. 5, the rod 18 is connected to a screw 25 having a wedge-shaped end embedded in fusible metal 27. In either construction, the tension of the rod 18 can be adjusted by rotating the tube 22. Specification 326,189, [Class 38 (v), Electric switches &c.], is referred to.
Patent GB-1021437-A (GB)
Title: Circuit interrupter
IPC: H01H33/76
Filed: 1964-05-11
Abstract: 1,021,437. Heavy current switches. S. & C. ELECTRIC CO. May 11, 1964 [May 17, 1963], No. 19519/64. Heading H2B. A load interrupting switch comprises a contact rod 27 engageable with an annular fixed contact 15 and slidable in an insulating sleeve 18 (e.g. of phenolic) having a lining 41 of gas evolving superpolyoxymethylene, the contact rod 27 carrying a trailer 40 of gas evolving methylmethacrylate so that during interruption the arc is constrained in the narrow gap between the liner 41 and the trailer 40 and is thus extinguished. The contact rod 27 is movable by actuating a trigger arm 38 and shaft 37 which moves a toggle linkage 29, 36 overcentre. The contact is biased into either end position or a tension spring 39. The fixed contact 15 is extended to carry a bolt 12 by means of which the interrupter is attached to one of the terminals of an isolating switch.
Patent GB-202142-A (GB)
Title: Improvements in or relating to drop stamps
IPC: B21J7/44
Filed: 1922-07-17
Abstract: 202,142. Nutcher, W. July 17, 1922. Guards. - In drop stamps for making spoons, forks, &c., of the kind in which a die or tool 2 is temporarily secured to the tup 1, e.g. by teeth on the tup engaging heated lead or other soft metal at the back of the die, the tup being held up when idle by a pivoted catch 5, a safety catch 7 is provided below and movable with the tup catch 5, and is arranged so to extend into the path of the die 2 as to arrest or deflect it should it become detached. Extensions 6, 9 of the catches 5, 7 may be coupled by links 10, the parts being so proportioned that both catches turn up out of the path of the die when released. Preferably the safety catch comprises prongs 7, 7<A>, the prong 7, nearer the operator, being higher than the prong 7A, so that the die is deflected rearwardly. In a modification, the safety catch is disposed wholly at one side of the guide 3, and may, when operative, be inclined.
Patent GB-1389231-A (GB)
Title: Pipelines and the transport of viscous liquids therethrough
IPC: F15D1/06
Filed: 1972-04-27
Abstract: 1389231 Pipes with baffles; junction pieces; reducing surface friction SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 27 April 1972 [29 April 1971] 19565/72 Headings F2P F2G and F2R The rate of flow of a viscous liquid, e.g. oil through a pipe-line 10 is increased by interposing an annular layer of a less viscous liquid, e.g. water adjacent the pipe wall through an inlet piece comprising a first chamber 1 having at least one inlet 3 and a circular outlet 4 for the viscous liquid, a second chamber 5 having at least one inlet 7 and an outlet 8, surrounding the outlet 4, for the less viscous liquid, and a connecting piece 9. In one embodiment, as shown, walls 2, 6 forming the chambers 1, 5 are frustoconical with a generating line of the wall 2 making an angle of at least 10 degrees with the axis. In a second embodiment the first chamber is cylindrical with two inlets (3), (Fig. 2, not shown). The second chamber (5) is formed adjacent an annular wall of the first chamber and the outlet (8) therefrom for the less viscous liquid is a curved annular channel surrounding the outlet (4) from the first chamber. A perforated plate (15) extends across the outlet (4) to produce an even flow of liquid across the outlet. In another embodiment the perforated plate at the exit is replaced by a baffle (19), (Fig. 3, not shown), within the first chamber (1) in spaced relation to a single inlet (3). The outlet (8) from the second chamber (5) is a planar annular channel opening into a curved wall connecting piece (18).
Patent GB-440656-A (GB)
Title: Apparatus for handling engines
IPC: F02B75/22
Filed: 1934-07-03
Abstract: 440,656. Assembling aircraft. VICKERS (AVIATION), Ltd., GLEN, W. A., and RAYNER, F. W., Byfleet Road, Weybridge, Surrey. July 3, 1934, No. 19575. [Class 4] [See also Group XXX] A radial or other engine which requires to be manipulated to varying positions while suspended, is slung from a wheel g by means of a curved rail a. The latter can be moved by hand over the wheel to turn the engine into any desired position. Preferably the rail is fixed so that the centre from which the arc is struck approximates to the centre of gravity of the engine so that the latter will remain in any position to which it is adjusted. An arm e<2>, connected to one end of the rail by a gusset plate, carries a hook d<2> engaging an eye on the engine, while plates b at the other end carry a cross-pin c engaging a hole in the adjacent part of the engine. The wheel g is suspended from the hoisting-gear h.
Patent GB-1143944-A (GB)
Title: Improvements in the treatment of filaments, fibres or fabrics made from synthetic hydrophobic polymers
Inventor: CORBETT WILLIAM MICHAEL
IPC: D06M15/51
Filed: 1965-05-10
Abstract: 1,143,944. Treating synthetic textile materials. IMPERIAL CHEMICAL INDUSTRIES Ltd. 9 May, 1966 [10 May, 1965], No. 19625/65. Heading DIP [Also in Division C3] Then tendency of filaments, fibres and fabrics made from synthetic hydrophobic polymers, e.g. polyethylene terephthalate, 1 - 4 - bis methylene-cyclohexane terephthalate, nylon 6, nylon 66 and polyacrylonitrile, to soil is reduced and then water absorption properties are improved by heating them in intimate contact with a polymeric composition obtained by the addition of a hydrophilic compound selected from sulphurous acid and its salts, e.g. sodium metabisulphite, amino derivatives of polyethylene oxide and polypropylene oxide, acrylamide and mono or dialkyl substituted acrylamide, e.g. dimethylacrylamide and diethylacrylamide, a vinylbenzenecarboxylate e.g. sodium vinylbenzenecarboxylate and a vinyl benzenesulphonate, to the unsaturated groups of an unsaturated polyester prepared by the reaction of an unsaturated di- or polybasic aliphatic acid or its ester forming derivatives with a glycol. The polyester may be prepared by the reaction of maleic, fumaric, itaconic, mesaconic, citraconic or aconitic acid with ethylene glycol, tetramethylene glycol or diethylene glycol. The polymeric composition may be applied to the fibre, filament or fabric as an aqueous dispersion or solution and the treated material then heated, e.g. at 90‹-230‹C. Antioxidants, e.g. bis(2-hydroxy - 3 - α - methylcyclohexyl - 5 - methyl) methane, 2, 4 - dimethyl - 6 - α - methylcyclohexylphenol, 2, 6 - ditertiarybutyl - 4 - methylphenol or bis (3 - methyl - 6 - tertiarybutyl phenol) - 4,4' - sulphide may be added during the preparation of the unsaturated polymer or at any subsequent stage prior to baking. The fibres, filaments or fabrics may be simultaneously dyed or optically brightened during the treatment by incorporating a dye or optical brightener, e.g. 2,5 - bis (tertiarybutylbenzoxazol - 2 - yl) thiophene or 1,2 - bis (6 - methylbenzoxazol - 2 - yl) ethylene, into the unsaturated polymer during its manufacture or adding it as a dispersion or as a solution in a suitable solvent, e.g. an ethylene oxide condensate of an alkylphenol or of a mono-, di- or polyhydric alcohol, to an aqueous dispersion of the polymeric composition.
Patent GB-1478764-A (GB)
Title: Process for the manufacture of carbonyl compounds
IPC: C07C47/42
Filed: 1975-05-09
Abstract: 1478764 Manufacture of carbonyl compounds F HOFFMANN-LA ROCHE & CO AG 9 May 1975 [10 May 1974] 19625/75 Heading C2C A process for the manufacture of unsaturated compounds comprises treating a compound of general formula wherein R 1 , R 2  and R 3  each represent a hydrogen atom or a C 1-7  alkyl group and R represents an aliphatic hydrocarbyl group containing at least one unsaturated double bond, a cycloalkenyl group or a cycloalkenyl-substituted aliphatic hydrocarbyl group in which the hydrocarbyl moiety contains at least one double bond, with a sulphonium methylide of general formula wherein R 5  and R 5 <SP>1</SP> each individually represent an aryl or methyl group or R 5  and R 5 <SP>1</SP> together with the sulphur atom to which they are attached represent a 5- to 8-membered heterocyclic ring which may contain an oxygen atom, in an inert organic solvent to give an epoxide of the general Formula I or II wherein R, R 1 , R 2  and R 3  are as above, if desired, treating an epoxide of Formula I or II with a Lewis acid in an inert organic solvent to give an oxo compound of general Formula III or IV and, if desired, treating an oxo compound of Formula III or IV with an alkali metal or alkaline earth metal hydroxide to give an α,#- unsaturated compound of general formula The compounds of Formulae I, II and 25R,6R,10 - trimethyl - 1,2 - epoxy - indeca - 3,9 - diene and 1 - (2,6,6 - trimethyl - 1- cyclohexen - 1 - yl) - 3,7 - dimethyl - 7,8 - epoxyocta-1,3,5-triene are claimed per se.
Patent GB-775003-A (GB)
Title: Improvements in or relating to a method of and apparatus for treating fat-containingmaterial
Inventor: VYNER ERNEST MIROSLAV
IPC: C11B1/00
Filed: 1953-07-15
Abstract: <PICT:0775003/III/1> Raw natural animal fat and collargen containing material such as bones for gluemaking, is treated to remove fat therefrom by crushing the material into fragments and then centrifuging it whilst maintaining it at a temperature above the melting point of the fat but below the boiling point of water and in the presence of steam and water flowing through the centrifuge 1, the initial material being thereby separated into two phases viz., a residual degreased material and a fat-containing liquor.  Other materials treated may comprise hides, suet, gut fat and meat.  The material may be pre-heated under the above temperature conditions before being crushed, and it may be re-heated prior to or whilst being centrifuged.  The temperature range is preferably 140 DEG  to 190 DEG F. The preheating is preferably rapid and, after the centrifuging, the degreased material is preferably rapidly cooled, e.g. by introducing cold water into the centrifuge.  In a suitable plant for degreasing bones for glue making, the material is conveyed from a storage 1 to distributer 7 on to a sorting belt 15 thence to a pre-heater 19 from which it is passed to vibrator 26, to separate any liquid fat, before being fed to a double crusher mill 38.  The crushed material is then conveyed to centrifuger 52 and the separated degreased material is dried in a dryer 68 and sifted in a unit 83 to remove small particles, the material then being ready for glue-making.  The fat liquor from the vibrator and centrifuger is led off through channel 35 and separated into fat and an organic liquid. The preheater 19 may be a rotary chamber having an internal perforated steam pipe.  The double crusher mill comprises an upper and a lower rotating cylinder furnished with double ended knives. The crushed material is conveyed by trolleys with centrifuge baskets 48 running on an endless track.  Lifting arms 54, 55 convey a filled basket to a centrifuge and remove it respectively.  In the latter operation the degreased material is emptied into a hopper 57 of a screw conveyer 58 for conveyance to the dryer 68.  The centrifuges are provided with inlet nozzles for supply of steam, hot or cold water or air.  Preferably steam is supplied to the centrifuge for degreasing step, followed by hot water, and the effluent is removed. Cold water is then supplied to cool the degreased material, which is then dried.  The dryer may be internally heated by hot air.
Patent GB-226161-A (GB)
Title: Improvements in or relating to tar distillation apparatus
IPC: C10C1/04
Filed: 1924-08-20
Abstract: 226,161. Sulzer FrÞres Soc. Anon. Dec. 15, 1923, [Convention date]. Rotating and grinding valves on seats.-The inlet valve of a tar-distil!lation apparatus is given a rotary oscillatory movement to prevent sticking. To the screwed spindle m is attached a crank n which is oscillated by a link o attached to a main operating crank. The link n is attached to the spindle m by a set-screw q, so that it can be detached when it is desired to alter the setting of the valve.
Patent GB-403042-A (GB)
Title: Process for cleaning liquids by means of centrifugal force and device for carrying same into effect
IPC: B04B1/08
Filed: 1933-07-12
Abstract: 403,042. Centrifugal machines. BANYAY, J., 4, E÷tv÷s Ucca, Budapest. July 12, 1933, No. 19725. Convention date, July 12, 1932. [Class 23.] Liquids are cleaned or purified in a machine consisting of a number of funnel shaped containers or pans b inserted concentrically into the conical drum a and rotated with it. The pans b arc mounted on a common shaft so that the whole structure can be removed from the drum in one piece. Outlets d, which can be closed by valves, are provided in the upper part of the drum, or in the cover for the discharge of dirt or sludge. A quantity of liquid is supplied to the apparatus through the channels f, f and the machine is rotated while the outlets d, g, are closed and the supply is cut off. The dirt is deposited on the walls of the pans ; the machine is then stopped and the clean liquid is drained off by the channels h, g. The machine is then rotated again with the outlets d open for the discharge of the dirt.
Patent GB-808407-A (GB)
Title: Improvements in or relating to electric furnaces
IPC: B65G25/00
Filed: 1957-06-24
Abstract: 808,407. Ratchet conveyers. S.I.T.I. June .24, 1957 [June 23, 1956], No. 19803/57. Class 78 (1). [Also in Group XII] - A ratchet-type conveyer for moving loadbearing trays in an electric furnace comprises two transmission units driven through a friction clutch, reversing means, and gearing connecting the transmission units to a frame carrying pawl members which push the trays during forward travel of the frame but become inoperative during its reverse motion, and means for stopping movement at the end of the forward travel of the pawl members, to reverse the movement and increase the speed of the rearward movement, A frame 12 guided by wheels 13 engaging rails 15 mounted on the furnace structure is driven by threaded rods 10 engaging bushes 11 secured to the frame 12. The rods 10 are driven through reduction gearing 9, 8, 6 and a friction clutch 2 from a reversible electric motor. Pawls 14 pivoted to the front of the frame 12 engage the trays during forward movement of the frame. At the end of the forward travel, a lever is operated to disengage the clutch 2, reverse the motor and increase its speed. Each pawl 14 has a weighty foot 17, Fig. 4, with extensions engaging the uprights of the frame 12 to hold it upright during forward travel. During rearward movement the pawl can tilt to pass below the next tray, but the weight of the foot 17 returns it to the upright position for the next stroke.
Patent GB-205571-A (GB)
Title: Improvements in apparatus for washing and sterilising bottles and other like receptacles
IPC: B08B9/28
Filed: 1922-07-19
Abstract: 205,571. Grabham, A. July 19, 1922. Bottles, cans, and cylindrical articles, washing, disinfecting, and drying. - In machines of the type described in Specification 18106/07 wherein the bottles or milk-churns &c. are inverted in crates and passed over tanks of washing and rinsing fluid which is thrown against their outer and inner surfaces by paddle wheels, and finally treated with steam, means are provided for superheating the steam so as to obtain better sterilization and leave the bottles dry. The tank a is divided into compartments by partitions b, the level of the fluids is kept constant by overflow pipes h and the fluids are impelled by paddle wheels c, pumps, or injectors against the bottles inverted in crates d moved by conveyers g. Each compartment is maintained at a higher temperature than the preceding one by steam-jets controlled by thermostatic devices. The superheater comprises a coil enclosed in a casing p and heated by gas, the steam is led from the bottom of the coil through pipes l<1> and made to impinge on the entire inner and outer surfaces of the bottles. An injector m<1> may be arranged to force a mixture of steam and water into the interior of the bottles.
Patent GB-147809-A (GB)
Title: Improvements in and relating to valve gears
IPC: F01D17/18
Filed: 1920-07-09
Abstract: 147,809. British Thomson - Houston Co., (Assignees of Rice, R. H.). June 29, 1917, [Convention date]. Regulating.-The passages 19 from a supply chest 13 to the nozzle of an elastic fluid turbine &c. are controlled by a series of valves 24, which, together with the actuating-levers 29, 30 and the knife-edge bearings therefor, are enclosed within the chest 13, a single stuffing-box 54 being provided for the operating-rod 53. The levers 29, 30 are pivoted at one end on a renewable knifeedge bearing 37a and carry at the other end a sleeve 42 bearing on a knife-edged member 46, which in turn is engaged by a knife-edged member 48<a> carried by a frame 49 movable in a guide 52 by the rod 53. The levers 29, 30 have notches 32, Fig. 7, engaging pins 31 carried by uprights 27 on the valves 24, Fig. 11, which uprights are guided by members 26 secured to the valve-seats 22. The valves'24 are arranged in two staggered rows and are adapted to be opened in the order a - - i, Fig. 2. The valves a, b, c, i are larger than the other valves, the valve i being the overload valve. In the event of a valve sticking open, the levers 29, 30 in moving downwards strike it on top and loosen it.
Patent GB-1451277-A (GB)
Title: Lens structure
IPC: G02B13/14
Filed: 1974-05-06
Abstract: 1451277 Infrared lenses RANK ORGANISATION Ltd 30 April 1975 [6 May 1974] 19923/74 Heading G2J An objective for the I.R. band (e.g. 8-14Ám) comprises front and rear simple positive lens elements each made of Germanium and spaced by a distance S lying between 0À8F and 1À2F, the rear surfaces R2, R4 being plane or convex to the front with radii of curvature greater than 10F and the front surfaces R 1 , R 3  being convex to the front with R 1  < R 2  and R 3  < R 4 . Surface R 2  may be aspheric. A small flat field corrector may be used with the objective. Numerical data and modulation transfer functions are given for two examples.
Patent GB-941206-A (GB)
Title: Improvements in television receivers
Inventor: MCGHEE HENRY ARTHUR
IPC: H04N5/52
Filed: 1961-06-02
Abstract: 941,206. Automatic gain control. PYE Ltd. June 1, 1962 [June 2, 1961], No. 19970/61. Heading H3Q. In a television receiver which is capable of operating on both positive and negative modulation signals, the automatic gain control circuit includes a delay diode through which a negative voltage is applied to the automatic gain control line when the receiver is switched to receive negative modulation signals. The receiver includes a detector circuit A as disclosed in Specification 941,205 feeding video amplifier V1, from the anode of which video signals are supplied to sync. separator V2. The automatic gain control voltage is obtained from the grid of this valve, which is grid leak biased, over resistance/capacitance network R1, C1. In the reception of positively modulated signals, i.e. with switches S1, S2 in the opposite position to that shown, the cathode of diode D1 is effectively earthed, and it acts as a delay diode across the automatic gain control line, in conjunction with bias potentiometer P1 by means of which the contrast level is set. When the switches S1, S2 are reversed, however, to the position shown in order to reproduce negative modulation signals, the cathode of the diode D1 is connected to the detector diode load, so that the negative potential produced thereacross is applied to the automatic gain control line. In this way there is avoided a momentary absence of a voltage on the automatic gain control line, which would otherwise result in overloading and paralysis of the receiver. In normal operation on negative modulation signals, the automatic gain control voltage developed across capacitor C1 is much greater than the voltage applied to the cathode of the diode D1 and so takes control. Resistor R2 acts as a video " stop off" resistor while capacitor C2 is included to stabilize the circuit against oscillation.
Patent GB-309354-A (GB)
Title: Improvements in or relating to plugs for baths, basins or the like
IPC: A47K1/14
Filed: 1928-07-10
Abstract: 309,354. Bishop, W. S. July 10, 1928. Waste fittings. - A plug for baths, basins, &c., has washers 15, 16, and a longitudinally split stud 10 with an eye 13 at one end, the halves of the other end being swaged over in opposite directions against the lower washer.
Patent GB-1087515-A (GB)
Title: Fastener for securing a moulded plastics member to a shaft
IPC: G05G1/12
Filed: 1966-05-06
Abstract: 1,087,515. Fasteners. UNITED CARR Inc. May 6, 1966 [May 25, 1965], No. 20089/66. Heading E2B. [Also in Division F2] A plastics control knob 10 is secured on a 'D' or triangular cross-section notched spindle 11 by a press-fitted tubular fastener having an integral spring clip 7 which snaps into the spindle notch 8. The fastener is provided with holes 5 into which plastics of the knob flows to provide additional securing means when the press-fitted fastener and knob are forced over the spindle end. Teeth (15) (Fig. 7 not shown) on the fastener provide still further securing means.
Patent GB-1269425-A (GB)
Title: Bipolar repeater
Inventor: HOUWEN DERK VAN DER
IPC: H04L25/24
Filed: 1970-04-27
Abstract: 1,269,425. Digital transmission systems. NETHERLANDS POSTAL & TELECOMMUNICATION SERVICE, DIRECTOR GENERAL OF. 27 April, 1970 [6 May, 1969], No. 20136/70. Heading H4P. A bipolar signal repeater includes means for deriving from a received bipolar signal train an equivalent binary signal train which is applied to a binary regenerator and means for deriving from the regenerator output a bipolar signal train equivalent to the applied train. A signal 2a applied to the transmitting end of lines 1, 2 is corrected in a known circuit for low frequency distortion by the addition in an adder 5 of a correction waveform derived by a filter 10 from the output wave f of binary regenerator 7. A comparator 6 receives the output wave c where it is compared with a threshold N and the output is applied as one input to regenerator 7 which also receives a series of clock pulses d derived by clock pulse circuit 8 from the incoming signal. In regenerator 7 signal c is converted to shape f. Clock 8, issuing a second output e and a second trigger circuit 9 constitute a delay circuit so that wave g has a delay of not more than one bit period compared with f. An AND gate 11 forms from wave f and g<SP>1</SP> a wave h and a further AND gate 12 forms from wave g and f<SP>1</SP> a wave i which are summed in transformer 15 to give a reconstituted wave k.