baber/WOPTO huggingface dataset:
Patent GB-303532-A (GB)
Title: Improvements relating to holders for toilet rolls
IPC: A47K10/32
Filed: 1927-07-07
Abstract: 303,532. Lazarus, S. A. July 7, 1927. Roll-holders.-In a holder for toilet paper consisting of a composite material one surface of which is absorbent and the other surface is waterproof, the roll of paper b is supported on a spindle on a bracket a and the paper is drawn from the roll and guided upwardly with its absorbent surface in contact with a drum d rotatably mounted in liquid contained in a bath c mounted on the bracket beneath the roll; the paper is guided by slots h, j formed in the bath. The bath is of closed cylindrical form and the drum, which is provided with pads i of felt &c., is mounted concentrically therein and has apertures d' in its body and ends to enable the liquid to enter and prevent the drum from rising in its bearings. The slot h is formed in a detach. able portion g of the. bath and the slot j between. the front edge thereof and the front edge of the fixed portion. The paper is guided and gripped as it issues from the slot j by the edge k<1> of a strip k hinged to the portion g and the paper is torn off against the edge k<1> which may be. serrated; the edge k<1> may be pressed against the paper by a handle k<2>. The bath is detachably mounted on the bracket by tongues l, m engaging recesses in the bracket.
Patent GB-381581-A (GB)
Title: Improvements in and relating to vapour electric devices
IPC: H01J17/58
Filed: 1931-06-24
Abstract: 381,581. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Prince, D. C. ; 1424, Wendell Avenue, Schenectady, New York, U.S.A.) June 24, 1931, No. 18278. Convention date, June 26, 1930. [Class 39 (i).] The envelope consists of a main chamber connected with h a n auxiliary chamber by a constricted orifice, a heated electrode being arranged in the auxiliary chamber which contains a vapouryielding material and is heated to such a temperature that the material vaporizes; the vapour condenses in the main chamber and returns to the auxiliary chamber. The cathode consists of a shell 12 with a re-entrant part having an internal heater 13, and is mounted in a chamber 10 lined with alumina, magnesia or quartz 11 and connected by a constriction 21 with the main chamber 1. Mercury or alkali metal is contained in the cathode. In a modification, the cathode is mounted in an auxiliary chamber depending from the main glass container and a sloping metal plate provided with an orifice is disposed between the cathode and the auxiliary chamber. Reference has been directed by the Comptroller to Specifications 6486/15, 230,026, and 336,563, [all in Class 39 (i), Electric lamps, Arc &c.]
Patent GB-1033448-A (GB)
Title: Improvements in the manufacture of indirectly-heated cathodes
IPC: H01J1/24
Filed: 1965-04-30
Abstract: 1,033,448. Indirectly - heated cathodes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 30, 1965 [May 5, 1964], No. 18290/65. Heading HID. An indirectly-heated cathode comprises a heating element 1 embedded in an insulating mixture 2 of silicon oxide and/or metal oxide which is brought into contact with the carrier 3 for the emissive layer and subsequently fused to both the heating element and the carrier, e.g. by heating for 2 mins. at a temperature 50‹ above its melting point. The insulating mixture may comprise, by weight, 70 to 20% CaO, 70 to 25% SiO 2 , and 0 to 40% MgO, to which up to 60% Al 2 O 3  and/or SrO may be added, for cathode operating temperatures up to 1100‹ C. This mixture has a coefficient of expansion matched to that of a W or Mo heating element, but if the cathode comprises an oxide coating 5 on a nickel base 4, the insulating mixture is fused to a W or Mo carrier layer 3 to which an Ni layer is secured by sintering or rolling. Alternatively, the cathode carrier may comprise a porous W body impregnated with, or having a cavity containing, emissive material. If the cathode operating temperature is below 900‹ C. the insulating mixture may comprise, by weight, 20 to 80% MnO, 20 to 60% SiO 2  and 0 to 35% Al 2 O 3 , to which up to 15% of other metal oxides may be added, and the intermediate W or Mo layer 3 may be omitted. Ferrochromium or nickel-iron supply leads 6, 7 are connected to the cathode-heater. The cathode may be of very small size or may be tubular. Specific examples and dimensions are given.
Patent GB-183335-A (GB)
Abstract: 183,335. Mosel, L. G. June 17, 1921. Air - heating stoves and fittings.--Apparatus for utilizing the heat of smoke and gases from chimneys for warming rooms and the like comprises an outer casing in the form of a stove, containing a series of pipes or tubes connected to the chimney by inlet and outlet passages. The smoke passes from the chimney through an opening 8 to a chamber 21, then through a series of vertical pipes 20 to a chamber 22, finally returning to the chimney by the passage 9. A handoperated damper 10 serves to close or open the passage 8 as desired, and the chamber 21 is provided with a cleaning door 7. Air enters the casing 6 through ducts 23, is warmed by passing round the pipes 20 and passes out through ducts 24 and openings in the top 25.
Patent GB-559349-A (GB)
Title: Improvements in dies for the drawing of bar, tube, rod or strip
IPC: B21C3/06
Filed: 1942-12-25
Abstract: 559,349. Drawing-dies. BOLTON & SONS, Ltd., T., and HAYES, G. V. D. Dec. 25, 1942, No. 18369. [Class 83 (iv)] An adjustable die for drawing rods, tubes &c. is built up from a number of blocks some 3, Fig. 1, having an operative face 4 and a complementary face 5 consequent to one another and another or others 6 having a pair of operative faces 7, 8 consequent to one another. In addition spacing blocks such as 9 may be provided having one operative face 10 and two complementary faces 11, 12 consequent to the face 10. The faces on the blocks may be arranged to permit fresh drawing surfaces to be brought into use by turning the block through 90 or 180 degrees. The faces may be at an angle other than a right-angle, in Fig. 8 showing a die for a section of general triangular form with one rib and a re-entrant angle. Dies for cruciform, tee, and a joggled section are also illustrated. In some cases the blocks may have a flat face for engagement by the set screws 2, otherwise packing pieces 17 with opposed flat and complementary faces are employed.
Patent GB-1432806-A (GB)
Title: Supersoft hydrolytically-stable polyurethane foams
IPC: C08G18/42
Filed: 1973-04-17
Abstract: 1432806 Polyurethane foams SCOTT PAPER CO 17 April 1973 [24 April 1972] 18390/73 Heading C3R A super-soft hydrolytically stable polyurethane foam comprises the reaction product of a polyester polyol, a polyisocyanate, a catalyst and a blowing agent, the polyol and polyisocyanate being in a combination consisting of: (a.) polyester polyol of OH No. 70 to 85 and isocyanate in an amount equal to an index of about 60; or (b) such polyol of OH No. 85 to 105 with such index from 60 to 70; or (c) such polyol of OH No. 105 to 135 and such index from 60 to 90. The "index" is the ratio of the actual amount of isocyanate to that theoretically required for complete reaction X100. Numerous polyesters, polyisocyanates, catalysts, blowing agents and surfactants are mentioned. In specific examples the following materials are used: glycol adipate polyester polyols of OH Nos. 56, 112 and 131 and blends thereof of OH Nos. 70 and 90; 80/20 and 65/35 mixtures of 2,4- and 2,6-toluene diisocyanates; a mixture of 70% di(N,N<SP>1</SP>-morpholinoethyl)ether and 30% 1,4-dimethyl piperazine, dimethyl ethanolamine or a proprietary silicone-amine catalyst; water; and a proprietary organo-silicone surfactant.
Patent GB-811843-A (GB)
Title: Improved methods of and apparatus for the control of tubulous, forced-flow, once-through vapour generating units
IPC: F22G5/00
Filed: 1955-06-24
Abstract: 811,843. Elastic-fluid turbines. BAILEY METERS & CONTROLS Ltd. June 24, 1955 [June 25, 1954], No. 18408/55. Class 110 (3). [Also in Groups XII, XIII and XXIX] The throttle valves of a high-pressure turbine fed through a conduit 17, Fig. 8, with superheated steam from a vapour generating unit (see Group XIII), are controlled in accordance with the pressure P2 on the outlet side of a pressure governor 136 through a pneumatic relay 131 (see Group XXIX), which also controls the governor 186 in by-pass valve 133 is similarly controlled through a relay 130. The throttle and by-pass valves may be selectively manually or automatically controlled by means of selector devices 135, 132 respectively. An over-riding speed governor for the turbine may be provided. Cooling steam is supplied by a pipe 143, Fig. 9, branching from the main supply pipe 142, the flow to the various points of admission being set by valves or orifices such as 144. The steam is cooled to the desired temperature by an attemporator 146 supplied with cooling water through a control valve 147 controlled through pneumatic relays 149, 152, 153 controlled by transmitters 148, 150, 151, respectively responsive to the position of the throttle valves, the attemporated steam temperature, and the rate of flow of attemporating water. Specifications 736,731, 739,501 and 758,230, [all in Group XXIX], are referred to.
Patent GB-852135-A (GB)
Title: Improvements relating to recorders
Inventor: DOLMETSCH CARL FREDERICK
IPC: G10D7/02
Filed: 1958-06-10
Abstract: 852,135. Wind musical instruments. DOLMETSCH Ltd., A. June 8, 1959 [June 10, 1958], No. 18532/58. Class 88 (2). A recorder has a small additional hole 21 situated opposite the window 6 and controlled by a key 25 operable by the player's lip or chin, in order to facilitate quiet playing without loss of pitch.
Patent GB-126271-A (GB)
Title: Improvement in Method of Electric Arc Welding, Cutting and Repairing.
Inventor: HOLSLAG CLAUDE JOSEPH
IPC: H01F29/10
Filed: 1918-11-14
Abstract: 126,271. Holslag, C. J. April 30, 1918. [Convention date]. Heating by electricity.-Arc welding, cutting, and repairing of steel, cast iron, copper, aluminium, &c. is effected by the use of alternating current, the pressure of which changes suddenly from a prolonged maximum of one polarity to a similar maximum of the other polarity, the work forming one electrode. A transformer may be used which produces two or more pressures simultaneously, the phase relation of which changes with formation or alteration of the arc, so that constant energy consumption is maintained. The transformer mav have a closed core, Fig. 1, on one limb of which the primary coil and main secondary coil are wound intimately together. An auxiliary secondary coil is placed on the opposite core limb and connected in series with the main secondary coil. Between the remaining core limbs 1 is a movable limb 15 adjustable laterally by a screw 19 and hand-wheel; this limb is slightly spaced from the outer limbs 1 by brass springs. Alternatively. the limb 15 may be drawn in magnetically against the action of a spring and dash-pot, to reduce the electric pressure after starting. Tappings 12, 13 are provided on all three coils, for varying the connexions. The electromotive forces in the two secondaries give a resultant which rises if the arc is obstructed by oil, slag, or dirt. If two or more arcs are in series, the back E.M.F. due to rupture of the arcs may be taken up by an inductance shunting the electrodes. Or the transformer may have a narrow additional limb wound reversely to the others in the secondary circuit. For polyphase currents, there are employed two or three transformers with their secondaries in series. The primary windings of two transformers may be independently connected to two-phase conductors; the transformers may be combined in one structure. A three-phase arrangement with primaries connected as in a Scott transformer is shown in Fig. 5. In another three-phase arrangement, with two transformers, the primaries are connected in open delta fashion. In a threephase arrangement with three transformers, the primaries are star connected but with one reversely wound. Bare or covered metal electrodes may be used. Specifications 120.886 and 142,521, [Class 38 (ii), Electric currents, Converting &c.]. are referred to,
Patent GB-698013-A (GB)
Title: Improvements in or relating to multi-functional lubricant additives
Filed: 1951-08-09
Abstract: Polyvinyl esters useful as lubricating oil additives are prepared by esterifying a polyvinyl alcohol with one or more aliphatic acid chlorides containing from 8 to 22 carbon atoms per molecule, in the presence of a basic material which is non-reactive with the reactants but which dissolves the resulting ester and reacts with the evolved hydrochloric acid to form precipitant salts.  Suitable bases are pyridine, quinoline, and tertiary amines.  They may be used together with a non-reactive solvent such as chlorobenzene, o-dichlorobenzene and carbon tetrachloride.  The aliphatic acid chlorides include myristoyl, stearoyl and palmitoyl chlorides and preferred are those of coconut oil acids having an average chain length of 13.5. Desirable proportions are 0.8 to 10 mols. of the base and 1 to 2 mols. of the acid chloride per mol. of polyvinyl alcohol. Reaction times of 2 to 10 hours at temperatures of 30 DEG  to 90 DEG  C. may be employed.  The mixture after reaction and cooling may be poured into benzene and filtered.  The filtrate is washed with water and with dilute hydrochloric acid, the water distilled off, and the solution filtered and concentrated.  The polymer is precipitated in methanol, taken up in ethyl ether, washed with water and dried with anhydrous sodium sulphate and the ether distilled off.ALSO:Additives which improve the viscosity index and depress the flow-point of lubricating oils, particularly mineral oils, comprise polyvinyl esters prepared by esterifying a polyvinyl alcohol with one or more aliphatic acid chlorides containing 8 to 22 carbon atoms per molecule in the presence of a basic material which is non-reactive with the reactants but which dissolves the resulting ester and reacts with the evolved hydrochloric acid. Suitable bases are pyridine, quinoline and tertiary amines.  The aliphatic acid chlorides include myristoyl, stearoyl and palmitoyl chlorides and preferred are those of coconut oil acids.  Other viscosity index improvers and pour-point depressors, detergents, oiliness agents, extreme pressure additives, and corrosion and oxidation inhibitors may be included in the compositions.
Patent GB-1034084-A (GB)
Title: Improvements in or relating to univibrator circuit arrangements
IPC: H03K3/284
Filed: 1965-05-04
Abstract: 1,034,084. Transistor monostable circuits. TELEFUNKEN PATENTVEBWETUNGSGESELLSCHAFT m.b.H. May 4, 1965 [May 15, 1964], No. 18780/65. Heading H3T. A monostable circuit comprises two pairs of reciprocally coupled, complementary transistors T1, T2; T4, T5, the first pair T1, T2 being arranged to charge a capacitor C1 for a predetermined time in response to a trigger pulse at E, after which the second pair T4, T5 become operative to discharge capacitor C1 for a second predetermined time. As described, all transistors are initially non-conductive, T1, T2 being turned on by a trigger pulse at E so that C1 charges via R1 until T1 becomes non-conductive, turning off T2. C1 now begins to discharge via R1, thus turning on T4 and T5 which remain conductive until C1 is discharged sufficiently to turn off T4. A negative-going pulse is thus available at the collector of T2 while Cl is charging and a positive-going pulse is available at the collector T5 while Cl is discharging. The first pulse is inverted at T3 and combined with the second pulse in an OR circuit D1, D2. T3 is maintained conductive by C2 until T5 provides an output. The duration of component outputs from the two sections of the circuit may be different if a diode D4 is connected across part of R1. The duration may be adjusted by C1.
Patent GB-596151-A (GB)
Title: Improvements in and relating to electric capacitors
IPC: H01G4/18
Filed: 1945-07-23
Abstract: The dielectric of a condenser comprises polymerized diallyl phthalate.  The condenser elements in wound or stack form are vacuum-dried in known manner and impregnated with monomeric diallyl phthalate in metal or cardboard moulds.  Benzoyl peroxide may be added as catalyst.  Partial polymerization is effected by heating at 55 DEG  C. for five hours, the filling holes are closed and the assembly is further heated for 65 hours at 55 DEG  C., 16 hours at 80 DEG  C. and finally for 24 hours at 115 DEG  C. to polymerize the resin to the insoluble, infusible state.  Reference has been directed by the Comptroller to Specification 574,642.
Patent GB-303438-A (GB)
Title: Improvements in or relating to carpenters' saw guides and the like
IPC: B27G5/02
Filed: 1927-09-29
Abstract: 303,438. Torrens, J. A. Sept. 29, 1927. Divided on 303,197. Saw-guides.-A guide block 22<1> for a hand-saw, particularly designed to facilitate the cutting of dovetails, is provided with grooves 24, 25 for cutting both the tenons and mortices for the joint, and is adjusted on the work by means of star-shaped gauge rollers 31, which can be turned on their axes if a point becomes worn. The guide slides in a support 20 which is clamped to the work 16<1>. In a modified device (not shown), the support slides on a carrier which is clamped to the work and carries a rack for determining the position of the support.
Patent GB-922638-A (GB)
Title: Method and apparatus for producing all-glass multiple sheet glazing units
Inventor: COWLEY CHARLES HAROLD
IPC: C03B23/24
Filed: 1961-05-25
Abstract: 922,638. Gas burners. LIBBEY-OWENSFORD GLASS CO. May 25, 1961, No. 18843/61. Class 75(1). [Also in Group XXIII] A burner assembly 55 for heating the edges of pairs of sheets 21, 22 of glass before fusion comprises opposed burner heads 59 each having a row of horizontal burners 61 to heat the outer surface edge a as they are passed therebetween and a row of upwardly inclined burners 62 which heat the inner surface edges b of the opposite sheet, the lowermost edges also being heated thereby. Each burner head 59 has screw-threaded openings 66, 67 for the burners 61, 62 leading through passages 68, 69 and 70 to a common fuel supply pipe 71. The burner head 59 is cooled by the passing of water through a U-shaped passage 75 parallel to the fuel passages. After fusion the edges pass over flames from a burner assembly 57 having three spaced rows of burners 87, the two outer rows being directed angularly inwards. Specification 785,968 is referred to.
Patent GB-1429351-A (GB)
Title: Systems for regulating the mass ratio of the fuel/air mixture of internal combustion engines
IPC: F02D9/00
Filed: 1973-04-19
Abstract: 1429351 Automatic control of exhaust gas ROBERT BOSCH GmbH 19 April 1973 [22 April 1972] 18935/73 Heading G3R [Also in Division F1] For an I.C. engine supplied via a carburetter of the type in which a fuel orifice opens into a mixing chamber in which the pressure is adjusted to be substantially constant a system is provided in which the size of the orifice is adjusted in a continuous manner in response to electrical signals  which are proportional to the oxygen content of the exhaust gas. The output of an oxygen sensor (16), Fig. 1 (not shown) is compared with a reference (at 17) and the result integrated by a device (18) whose time constant may be automatically varied according to the duration of the error. The result is amplified to effect the required adjustment. In the carburetter shown two fixed coils 43 are wound in opposition and act upon a permanent magnet armature 31 attached to a needle valve 34. It is stated that since the net magnetic field is zero when the O 2  content is correct displacement of pressure responsive piston 22 cannot react upon the armature. In one alternative embodiment Fig. 3 (not shown) only one coil is provided, the current through which is average for zero error, the armature is of soft iron and the magnetic effect operates against a spring (54) whose rate is chosen to compensate for the effect of piston displacement. No fluid damping is provided. In a second alternative Fig. 4 (not shown) a single coil is carried by the piston; the armature is not damped but the piston is. In another alternative Fig. 5 (not shown) the orifice in which the needle valve acts is rotatable by an electromagnet to vary the opening to a passage which by-passes the main orifice. In a modification the flow through the main orifice may be adjusted by an electromagnetically operated spool valve or lamellar closure (iris "diaphragm"). In a further alternative Fig. 6 (not shown) the arrangement is similar to that of Fig. 2 except that the armature (soft iron) is attached to the piston which therefore is adjusted, carrying the needle with it. In a final alternative Fig. 7 (not shown) the chambers 25 and 28 of a carburetter like Fig. 2 are inter-connected via an electromagnetic valve Fig. 8 (not shown), operation of which varies the pressure difference between 25 and 28 and hence the height of the piston and needle.
Patent GB-578650-A (GB)
Title: Improvements in ambient temperature compensation for thermally-actuated electric switches
IPC: H01H71/16
Filed: 1944-10-03
Abstract: 578,650. Thermal switches. BELLING & LEE, Ltd., HEATH, C. W., and JONES, K. J. Oct. 3, 1944, No. 18940. [Class 38 (v)] An ambient temperature compensated thermal switch comprises a bimetal element 1 heated by a winding 4 and co-operating at its free end with a strut 6 engaging a recess in e plunger 9, or which bears the compensating bi metal element 8 On increase ir ambient tempera ture, element 8 pushes the plunger 9 and so increases the force required for element 1 to disengage the fixed contact 7, movement of the latter being limited by stops 14, 16.
Patent GB-626585-A (GB)
Title: Improvements in or relating to pyrophoric lighters
IPC: F23Q2/46
Filed: 1947-07-16
Abstract: 626,585. Pyrophoric lighters. LEVENE, M. M. July 16, 1947, No. 19003. [Class . 75(iii)] The flint of a pyrophoric lighter is moved through an angle each time the lighter is operated; this prevents grooving of the flint. As shown Fig. 1, a flint wheel 5 of cylindrical form and a thumb wheel 7 are fixed on a tubular shaft 6 rotatable around a rod 10 fixed in the casing, there being a pin 8 mounted on the thumb wheel 7 or projecting from the shaft 6 to rotate the flint holder 2 by engaging teeth on an end wheel 9. The flint proper is shaped so as necessarily to rotate with the flint holder. In a modification Fig. 3, the flint holder has a ratchet wheel 9 operated by a pawl 22 on the lighter cover 21 each time the latter is opened. A detent 24 prevents backward movement of the ratchet wheel.
Patent GB-1310463-A (GB)
Title: Air brake for jet propulsion engines
IPC: B64C9/32
Filed: 1971-06-04
Abstract: 1310463 Air brakes VEREINIGTE FLUGTECHNISCHE WERKE-FOKKER GmbH 4 June 1971 [6 June 1970] 19062/71 Heading B7G A jet propulsion engine has thrust deflectors 2 and is provided with flaps 9 serving as air brakes connected with, and movable independently of, the deflectors. The deflectors are moved by servo member 6 and are connected to the flaps 9 by linkages 10 extendible by means of servo members 11. If, with the engine in the normal flow condition (dotted lines, Fig. 1), the servo member 6 is actuated without actuating the servo members 11 then both thrust reversal and air braking are obtained (full lines, Fig. 1); while if the linkages 10 are extended without actuation of the servo member 6 then air braking alone is obtained (Fig. 2, not shown). If thrust reversal is then required the linkages 10 are shortened simultaneously with actuation of the servo member 6.