baber/WOPTO huggingface dataset:
Patent GB-1426399-A (GB)
Title: Electric apparatus for heating liquids
IPC: G05D23/24
Filed: 1973-06-29
Abstract: 1426399 Automatic control of temperature BELLING & CO Ltd 29 June 1973 [30 June 1972] 31221/73 Heading G3R [Also in Division H2] Apparatus for heating a liquid, e.g. a kettle, comprises a transistor for controlling the supply of current to an electric heating element and two negative temperature coefficient thermistors are sensitive to vapour given off by the boiling liquid and effective to cause the transistor to switch off the current to the heating element when the liquid boils and the other sensitive to the temperature of the heating element and operative to cause the transistor to switch off the current to the heating element if this element overheats, an adjustable resistor being provided to modify the operation of the other thermistor whereby it is made effective to switch off current to the heating element when the liquid reaches a predetermined temperature. The heating element 1 for an electric kettle is energized from an A.C. supply by the manual resetting of a contact.3 of a relay 7. Closure of the contact 3 also supplies a full wave rectifier 4 the output of which energizes the relay 7. In parallel with the relay 7 is a transistor 8 which is normally non-conductive. The control circuit also includes two NTC thermistors 9, 10, the thermistor 9 being located in the kettle in the air space above the water and the thermistor 10 is in thermal contact with the heating element 1. The thermistors 9, 10 are both connected at one end to the base of the transistor 8 and at the other ends to potential dividers 11, 12 respectively. When the water boils the thermistor 9 has a resistance value such that the transistor 8 becomes conductive to short-circuit the relay 7 so opening the contact 3 to interrupt the current flow in the heating element 1. Overheating of the element 1 causes the thermistor 10 to assume a resistance value such that the transistor 8 is made effective to stop the flow of current in the element 1. A resistance 13, which is variable either infinitely or in discrete steps is associated with the potential divider 12, by means of which the thermistor 10 may be made effective to switch off the current supply to the element 1 at a temperature below the boiling point of water. In the embodiment of Fig. 1 the contact 3 is closed manually but in the embodiment of Fig. 2 where the rectifier 4 is connected directly to the A.C. source 2 the system operates automatically such that the contact 3 automatically opens and closes so as to maintain the water at a desired temperature. In an embodiment Fig. 3 (not shown) a second transistor, controlled by the thermistors, is provided to control the transistor 8 and visual and audible indicating devices are incorporated.
Patent GB-415284-A (GB)
Title: Improvements in or relating to machines for cutting paper, cardboard or the like
IPC: B26D7/02
Filed: 1933-11-10
Abstract: 415,284. Cutting paper &c. JOHNEWERK GRAFISCHE MASCHINEN-AKT.- GES., and STEGMANN, K., 37, Schafferstrasse Bautzen, Germany. Nov. 10, 1933, No. 31343. [Class 31 (i).] In a machine for cutting paper, cardboard, or the like, the work 9 is compressed by means of a bar 5 operated by a spindle 1 provided with a steep, but not self-locking, thread, and moved up or down by means of an axially-stationary spindle nut 2 rigidly associated with a handwheel 3. The spindle nut 2 is provided with a flanged portion 2s which co-operates frictionally with a portion 11 of a spindle support 4 secured to the machine frame, to bring about selflocking, a slight turning movement of the hand-wheel 3 being sufficient to. release the pressing bar 5.
Patent GB-1077156-A (GB)
Title: Process for removing undesired odours and flavours from liquids such as milk
IPC: A23L5/20
Filed: 1965-07-23
Abstract: Milk is deodourized by treating with active hydrogen and subsequently treating with an inert carrier gas, e.g. nitrogen, hydrogen or steam.
Patent GB-924745-A (GB)
Title: Improvements in or relating to electrical cooking devices
IPC: F24C15/18
Filed: 1961-08-31
Abstract: 924,745. Electric cooking stoves. MOFFATS Ltd. Aug. 31, 1961 [Oct. 10, 1960], No. 31433/61. Classes 39 (3) and 126. An electric cooker comprises a base portion 12 surmounted by a horizontal cooking surface assembly 14, which is slidable between the positions shown in Figs. 1 and 2 and includes front and rear heating elements 16, 15, an oven 17 and a plate warming shelf 20 which is heated by a thermostatically controlled element and disposed in the space between the oven and the slidable cooking surface assembly. A switch operated by an abutment on the assembly when this is moved to the position shown in Fig. 1 renders the rear heating element 15 of the assembly inoperative.
Patent GB-1513949-A (GB)
Title: Watch mechanism incorporating two barrels
IPC: G04B1/12
Filed: 1975-07-29
Abstract: 1513949 Watches COMPAGNIE DES MONTRES LONGINES FRANCILLON SA 29 July 1975 [22 Aug 1974] 31608/75 Heading G3T A watch movement has two driving barrels 2, 3 providing a running reserve of less than 72 hours without winding and connected in series via a positive link which couples one end of each of the barrel springs, the other end of one of the springs driving a gear train coupled to a balance oscillating at above 3À4 Hz, and the gear train and springs being such as to provide a lower spring torque and a proportionately higher barrel speed than in a watch having a single spring storing the same energy. The torque on the train is thus reduced. As shown barrel 3 contains a spring 16 and drives the train via toothing 35. The arbor 12 of barrel 3 has an extension 19 which supports and is coupled to arbor 18 of the barrel 2. The barrels can be wound by an external crown 65 or automatically by a weight 60 displaceable reverser 62. Another arrangement using coaxial barrels coupled by an intermediate gear (88), Fig. 6 (not shown) is described; the transmission ratio of the coupling may be greater or less than one. Alternatively the barrels may be coplanar, Figs. 3, 4, and 5 (not shown).
Patent GB-450627-A (GB)
Title: Improvements in or relating to steam traps with floats
IPC: F16T1/22
Filed: 1935-11-15
Abstract: 450,627. Steam traps. SERVAIS, C., and SERVAIS, [nÚe DELREZ], C., 40, Rue des DÚportÚs, Verviers, Belgium. Nov. 15, 1935, No. 31724. [Class 64 (ii)] In a steam trap comprising a float 19 operating a slow discharge valve 15 of limited movement which entrains a valve 16 for quicker discharge at least three apertured horizontal plates 20 are mounted above and below the float to prevent turbulence of the fluid in the trap. Two such plates are always disposed below the float. The main valve seating 9 is carried by double walls forming a lowermost chamber 6 which communicates with the valve discharge through a passage 12 and with two outlets for the trap 7, 23 each with valve controls. The outlet 23 is manually controlled and the outlet 7 automatically controlled by means of discs 25, 26 at right angles to each other, the former being pivoted.
Patent GB-1063408-A (GB)
Title: Extruded pitch based material and process for producing the same
Inventor: MAZURK LOUIS ROBERT
IPC: C08L95/00
Filed: 1965-07-26
Abstract: A composition capable of extrusion into tape or coating for underground pipes is prepared by mixing 30-95 parts by weight of pitch with 5-70 parts of plasticized polyvinyl chloride, polyvinylidene chloride, or the copolymer of vinyl chloride and vinyl acetate, heating the mixture to a temperature 40-100 DEG  F. above extrusion temperature, cooling to extrusion temperature, and then extruding.  The polymer has a molecular weight of 20,000-60,000 and is plasticized by 65-70 parts of plasticizer, e.g. di-(2-ethylhexyl) phthalate per 100 parts of polymer.  The polymer is added to the pitch, having a softening point of 80-200 DEG  F., in the proportion of 1:3.  Fillers, e.g. slate flour, mica, calcium silicate, talc, magnesia &c., and softeners, e.g. chlorinated diphenyls, anthracene oil, creosote oil &c., may be included in the pitch.  The polymer is added to the molten pitch and the mixture is delivered to an extruder having a barrel along which the mixture is fed and provided with three zones, the first heated to about 250 DEG  F., the second to about 325 DEG  F., and the last to about 300 DEG  F., the mixture is then cooled and extruded at about 250 DEG  F.
Patent GB-693354-A (GB)
Title: Improvements in or relating to cop winding machines
Inventor: MUSCHAMP HAROLD LIONEL
IPC: B65H54/36
Filed: 1949-12-10
Abstract: 693,354. Winding yarn. MUSCHAMP H. L. Dec. 11, 1950 [Dec. 10, 1949], No. 31762/49. Class 120(ii) A yarn guide carriage traverse mechanism for a cop-winding machine comprises a carriage 2 freely slidable along a guide 4 parallel with the winding head, a feeler member 9 rotatably mounted in said carriage, which is non-reciprocating, and having a head portion 10 adapted to be contacted by the rotating yarn 1 and to be rotated thereby, a reciprocating threaded member 16 parallel with the winding head engaging a nut 13 movable with respect to the carriage in bosses 12 thereof, and adapted to contact it at one end of its stroke to move the carriage 2 along the guide 4, the nut 13 being caused to travel along the threaded member 16 by the rotation of the feeler, e.g. through worm and wormwheel gearing 11, 14. Control of the cop diameter is effected through a guide 17, 20, against which bears a follower 18 clamped to the slidable carrier 8 of the feeler 9. The thread guide (not shown) is carried by the carriage 2, e.g. on the portion 5 thereof, and is driven in any suitable manner. The Provisional Specification refers to Specification 684,847.
Patent GB-1365639-A (GB)
Title: Polymerisation process
IPC: C08F22/04
Filed: 1972-07-06
Abstract: 1365639 Olefin-unsaturated acid anhydride copolymers KURARAY CO Ltd 6 July 1972 [19 July 1971] 31788/72 Heading C3P Olefin-unsaturated acid anhydride copolymers are prepared by copolymerizing the monomers, in a solvent which dissolves the reactant monomers but does not dissolve the copolymer product, in the presence of a free radical initiator and a molecular weight modifier selected from (1) Group I to IV metal salts, hydroxides and oxides and (2) compounds having amine or ammonium groups. The olefin may be propene, butene-1, butene-2, isobutane, pentene-2, hexene-1 or mixtures thereof. The anhydride may be itaconic or maleic anhydride. The initiator may be a peroxide or azo compound. The solvents may be acetic acid esters and mixtures thereof with butanol, cyclohexane, n-hexane, benzene or dioxane, Many suitable modifiers are specified and examples describe the copolymerization of maleic anhydride with isobutene in the presence of (1, 6, 8 and 9) calcium chloride; (2) magnesium chloride; (3 and 7) urea; (4) sodium hydroxide, sulphate, nitrate, nitrite, carbonate, bicarbonate, bisulphite, phosphate, bromide, fluoride, silicate, borate, chlorate, formate, acetate oxalate or maleate, potassium hydroxide, chloride, nitrate, bromide, carbonate, phosphate or acetate, calcium hydroxide or nitrate, aluminium hydroxide, chloride, oxide or basic acetate, copper sulphate, nitrate or chloride, stannous chloride, zinc acetate, ammonium chloride, ammonium acetate, hydroxylamine hydrochloride, ethylamine, isopropylamine, diethylamine, triethylamine, acetamide or phenylamine; (5) calcium chloride or potassium nitrate; (10) calcium chloride and magnesium chloride and (13 and 15) zinc chloride; and the copolymerization of maleic anhydride with mixtures comprising isobutene, butene-1 and butene-2 in the presence of (11) urea, (12) calcium chloride and (14) zinc chloride.
Patent GB-281483-A (GB)
Title: Improvements in and relating to centrifugal machines
IPC: B04B11/04
Filed: 1926-12-16
Abstract: 281,483. Greaves, H. J. Dec. 16, 1926. Strainer separators; discharging. - A centrifugal hydro-extractor has a strainer drum J composed of a, number of hinged sections G. This drum is arranged between the ports F<1> - - F<4> of the central feeding chamber C and the ports K<1> - - K<4>, N<1> - - N<4> for the discharge of liquids and solids. The drum J is rotated at a different rate from the remainder of the apparatus. The material is supplied to the chamber C and is thrown through the ports F' - - F<4> on to the strainer sections G. The water passes into the ports K<1> - - K<4> and the sections move forward carrying the solids. As each section comes opposite one of the discharge ports N<1> - - N<4>, it is rotated in any suitable manner and the solids are discharged. The section is then moved back to its original position and is re-charged at the' next port. Various forms of sections may be used.
Patent GB-1218086-A (GB)
Title: A collapsible telephone headset
IPC: H04R5/033
Filed: 1968-07-04
Abstract: 1,218,086. Telephone headset. AKUSTISCHE u. KINO - GERATE G.m.b.H. 4 July, 1968 [5 July, 1967], No. 31967/68. Heading H4J. A telephone headset is collapsible for storage and transport. In one arrangement, Fig. 1, the head set 1 has two hinges 4 on which are U-shaped wire members 5 carrying the earphones, the members 5 being adjustable in position in the hinges so that the earpieces 7 can be arranged to suit an individual wearer. A modification of the Fig. 1 apparatus has side portions 2 which are at right angles to the part 1, Fig. 2, instead of being inclined. Here the headpiece is shown in its collapsed position. In a second arrangement, Figs. 3, 4 (not shown), a shallow channel section member (1) forms the headband and wire side member(s) (5) on which are slidably mounted the earpieces (7), are accommodated within the channel of member 1 when the headpiece is collapsed. The cable connected to the headpiece, may in the Fig. 1 and Fig. 3 arrangements be wound round disc portions on the back spaces of the earpieces when the device is collapsed. In further arrangements the headpiece is formed externally with channel sections on which the cable can be wound when the apparatus is collapsed, Figs. 6, 7 and 8 (not shown). The arrangement of Fig. 6 has solid sides, in which are slots to allow adjustment of the positions of the earpieces. A lightweight arrangement, Figs. 9, 10 (not shown), has a single or two-part headset which is slightly curved. The Fig. 9 arrangement has end hinges to which are attached stiff wire arms carrying the earpieces which are slidable or rotatable thereon. The earpieces are rotated before collapsing the device. The Fig. 10 arrangement has extension pieces at each end of the headband and carrying the stiff wire arms, the cable being wound round these pieces when the device is collapsed. A hinged headpiece is illustrated in Fig. 12 (not shown) in its collapsed position. The headset 1 may accommodate an electrical device such as a radio receiver and a changeover switch between this and the telephone cable is then provided. The device is switched off when the apparatus is collapsed. A device may also be worn under the chin or on the nape of the neck.
Patent GB-968946-A (GB)
Title: Production of alkyl pyridines
Inventor: COOPER LESLIE ERNEST
IPC: C07D213/09
Filed: 1962-08-21
Abstract: Alkyl pyridines having alkyl groups in one or more of the 2, 4 and 6 positions are produced by reacting together, in the vapour phase and at elevated temperature preferably 300 DEG  to 550 DEG C., a mixture of mesityl oxide, ammonia and a saturated aliphatic aldehyde.  The process is conveniently performed in the presence of a catalyst, preferably silica and/or alumina which may be admixed with titania, zirconia, ceria or thoria and may contain a metal and/or metal compound.  The mixture of pyridine bases obtained may be separated by, for example, fractional distillation.
Patent GB-230930-A (GB)
Title: Improvements in or relating to devices for raising and lowering windows
IPC: E05F11/48
Filed: 1923-12-21
Abstract: 230,930. Hodson, J. E. Dec. 21, 1923. Sliding-window opening and closing apparatus; vehicle windows.-Means for raising and lowering vehicle and other windows comprises a rotary device adapted to be operated manually through a worm drive and directly connected to a window by a belt or chain having means to maintain it under constant tension. A belt or chain g, eonnected to a clip d on the window, passes around an upper sprocket wheel h and a lower roller o, the sprocket wheel h being mounted coaxially with a worm wheel i, meshing with a worm j, mounted on spindle k of an operating handle l. The roller o is mounted in bearings p formed integral with or secured to a base plate q, which is slotted to pass over a pair of studs r. To maintain the chain g under tension, coiled springs t are disposed between the studs and the base. plate q. The window may be operated through more than one belt or chain by a common worm drive.
Patent GB-250500-A (GB)
Title: Improvements in gas fires or the like
IPC: F24C3/04
Filed: 1925-12-18
Abstract: 250,500. Carpenter, C., and South Metropolitan, Gas Co. Dec. 18, 1925. Gas fires having additional air inlets to the flue, for minimizing the quantity of air induced over the radiants, are provided with an air passage or passages 5 at the rear or sides, or both, of the fire, communicating with the flue 4; preferably the inlet to the passage 5 is near the base of the fire. As shown, the passage is formed integrally with the casing; in a modification it consists of a separate vertical tube depending from the flue at the rear of the fire.
Patent GB-1040577-A (GB)
Title: Improvements in and relating to limiting circuits
Inventor: SMITH DAVID HESELTINE
IPC: H03G11/00
Filed: 1962-08-21
Abstract: 1,040,577. Limiting circuits. COMMUNICATIONS CONSULTANTS Ltd. Aug. 16, 1963 [Aug. 21, 1962], No. 32079/62. Heading H3W. In order to limit the amplitude of a signal it is caused to frequency-modulate a carrier wave, the frequency-modulated signals are then passed through a band-pass filter whose bandwidth determines the limiting level, and it is finally demodulated in a discriminator circuit. An automatic frequency control circuit may be used to stabilize the frequency modulator.
Patent GB-700744-A (GB)
Title: Treatment or protection of metals
IPC: C23F11/08
Filed: 1949-12-14
Abstract: A temporary coating for inhibiting corrosion of metal articles, e.g. razor blades, consists of an emulsion, the disperse phase of which is an aqueous solution of a known corrosion inhibitor and the continuous phase an oil or grease.  Specified corrosion inhibitors are sodium benzoate and dicyclohexylamine nitrite. The oil or grease is preferably one which is not easily hydrolysable such as wool fat or lanolin or mixtures thereof. Paraffin and glyceryl monostearate may also be present.
Patent GB-173140-A (GB)
Title: Improvements in or in connection with centrifugal or turbine pumps for fire or general service
IPC: F04D9/00
Filed: 1920-11-13
Abstract: 173,140. Jones, C. F., and Mather & Platt, Ltd. Nov. 13, 1920. Starting, facilitating.- Priming-water is supplied to a pump a from a tank f, which is in turn supplied by a pipe n from the pump delivery pipe e through a ball-float valve q. The pump is driven by means under control of pressure in the delivery pipe taken from a connection u, so that the pump is set in operation when this pressure falls, owing to, for instance, leakage from the foot valve or the ball-float valve and the first action of the pump replenishes the priming tank. The ball-float valve is preferably of the type which provides a full opening immediately the float tends to open it.
Patent GB-1502746-A (GB)
Title: Central heating system and a flue gas collecting box forming part of the boiler of such a system
IPC: F24H8/00
Filed: 1976-08-02
Abstract: The central heating gas boiler is provided with a hearth (1), a first heat exchanger (3), a smoke-gas collecting box (4) and a second heat exchanger (11) which is arranged in this box, flowed around by the smoke gas and connected in the water return line (12). As a result, the space available to the second heat exchanger can easily be increased or reduced and a simple adaptation to the conditions of the boiler can take place. <IMAGE>
Patent GB-618168-A (GB)
Title: Improvements in and relating to the polymerisation of compounds containing the ethylenic double bond
IPC: C08F10/00
Filed: 1946-10-30
Abstract: Compounds containing an ethenylic unsaturation such as methyl methacrylate, vinyl chloride or vinyl acetate are polymerized alone or together in the presence of a catalytic amount of one or more esters of hyponitrous acid.  Esters specified are those of methyl, ethyl, n-propyl, n-butyl, allyl, oleyl, cetyl, stearyl, ceryl and benzyl alcohols.  Bulk, solution, emulsion or granular processes may be used.  A foamed product results when the amount of hyponitrite is large, e.g. over 10 per cent the monomer. Oxygen is usually excluded from the system.  Sheets and plates may be made using these hyponitrites and the process of Specification 588,658.  Free hyponitrous acid is mentioned as a polymerisation catalyst. Specifications 427,494, 444,257, 505,012 and 588,658 are referred to.
Patent GB-159383-A (GB)
Title: Improvements in the construction of loom pickers
IPC: D03D49/36
Filed: 1919-12-23
Abstract: 159,383. Uttley, F. Dec. 23, 1919. Pickers.-A picker is formed from buffalo hide so cut and folded as to present outside solid or unbroken surfaces at the places where it comes in contact with the picking- stick and the shuttle. Fig. 5 shows a hide blank, which is folded about the line a', while the part a<3> is turned up to form the hole 2, Fig. 3, for the picker spindle. The part a<2> is then bent round the part a<3>. The portion a‹ is bent back on itself, and the part a<5> is wrapped round it, and the whole is then riveted together. The picking- stick operates against the surface 3<1>, and the shuttle contacts with the end of the head 4 that is opposite to that surface.
Patent GB-481658-A (GB)
Title: Improvements in engraving machines
IPC: B23Q35/20
Filed: 1936-07-09
Abstract: 481,658. Copying-machines. KAPELLA, Ltd., and RODWELL, R. V., TAYLOR. E. M., and STAFFORD, G., [Representatives of TAYLOR, W.]. July 9, 1936, Nos. 32204/37 ant 32205/37. Divided out of 480,584. [Class 60] [Also in Groups XVI, XXII, and XXIV] The Specification describes machines as described in Specifications 480,584and 480,661, but includes also, Fig. 1, a mounting for the microscope &c., G, comprising two mutually perpendicular slides G<1>, G<5>, the slide G<5> being movable on the base A parallel to the primary plane, and the slide G<1> being movable on the slide G<5>; both slides carry vernier scales and clamping devices, Coaxial with the microscope is a V-member G8, and on the copy table J<2>, Fig. 9, are provided work clamping slots J<7> which also are employed to carry two T-bolts N<10> serving as pivots for brackets N<8> carrying slide links N<1>, N<2> pivoted together at N<3>, and slotted at N<4> to engage bolts N<5> in the brackets N8, which also carry screws N<9> to engage the sides of the links. The link N<1> carries a pivot pin N at its end, and by adjustment of the links, the pin N can be brought to any desired position on the copy table. The mechanism described above is used for the generation of circular arcs and straight lines on the work without the use of a copy, the pin N, for circular are generation, being held in the V-member G<8>. Fig. 12, and, for straight line generation, in a V -member C<2> on the tracer ; the setting-up of the machine is performed with the aid of the microscope. The machine shown in Fig. 14, which corresponds generally to that described in Specification 480,661, also employs a microscope &c. T<1>, and a V-member U4 mounted on a member U<3> slidable on the member U<l> perpendicularly to the primary plane, and may be employed for the generation of circular arcs and straight lines. Specification 418,135, [Group XXIII, also is referred to.