baber/WOPTO huggingface dataset:
Patent GB-475141-A (GB)
Title: Improvements in and relating to ventilators
IPC: F24F13/08
Filed: 1936-05-26
Abstract: 475,141. Ventilators. CRAIG, W., and CRAIG, J. May 26, 1936, No. 14839. [Class 137] In a ventilator for extracting air, applicable to gas cookers or fires, an aperture 1 in a wall 2, which terminates the passage through which the fumes pass, is covered by a plate 3 carrying vanes 5 pivoted at 6 in an inwardlyprojecting frame 4. The vanes are all connected together by a transverse bar 8. A cover 9 situated outside the wall 2 is open at each end for the passage of air, and the vanes 5 project into this passage so that they are moved in one direction or the other by the current of air, and always operate to extract fumes. When applied to the extraction of air from vehicles, a cover 11, Fig. 4, is placed inside the vehicle to protect the vanes. Openings 12 are protected by vertical members 13.
Patent GB-650444-A (GB)
Title: Improvements in or relating to a method of producing hot gases for the purpose of jet propulsion
IPC: C06B27/00
Filed: 1944-08-03
Abstract: A method of producing hot gases under pressure for the purpose of jet propulsion (see Groups XII and XXVI) comprises introducing a fuel comprising a liquid selected from the following list into a combustion chamber having an outlet orifice for hot gases and also introducing into the combustion chamber an oxidizing agent capable of reacting under atmospheric temperatures and pressures with the fuel to effect a spontaneous combustion thereof.  The liquid fuels which may be used are (a) organic compounds containing at least one amide radicle such as aniline, orthotoluidine and methylamine; (b) liquid hydrocarbons containing large percentages of the amines mentioned in (a); (c) highly unsaturated hydrocarbons and compounds containing unsaturated hydrocarbon groups such as divinyl acetylene, dipropargyl and propargyl alcohol; (d) liquid hydrides of lithium, beryllium, boron, aluminium, magnesium, phosphorus, potassium and sodium; (e) liquid organo-metallic compounds containing one or more of the elements mentioned under (d); (f) liquid fuels containing one or more of the elements mentioned under (d) either in solution or in suspension; (g) the substances pyrrole, pyridine, pinene, terpin, pinol, terpineol and hydrazine; (h) ozonides; and (i) carbon disulphide containing dissolved phosphorus.  These fuels may be used together with other fuels such as gasoline.  Specification 592,706, [Group XXVI], is referred to.
Patent GB-1038556-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28F1/12
Filed: 1963-04-16
Abstract: 1,038,556. Heat exchanger tubes. D. F. OOSTERBAAN. April 16, 1963 [April 16, 1962], No. 14912/63. Heading F4S. A finned heat exchanger tube 5 comprises a plurality of nested elements each comprising a plate member in which is formed at least one flanged aperture 2 having one end 4 of reduced diameter which, on assembly, is received in the aperture 2 of an adjacent element, the flange being formed by cutting a hole in the plate, forming the flange from the plate material immediately around said hole, and raising the flange to the required height by thinning. A plurality of holes may be formed in the fin portion 1 of the element (Figs. 1 to 3, not shown).
Patent GB-683973-A (GB)
Title: An automatic optical slide projector
IPC: G03B23/12
Filed: 1950-06-15
Abstract: 683,973. Optical projection apparatus. MORANDINI, G. June 15, 1950 [June 20, 1949], No. 14922/50. Class 97 (i). [Also in Group XVIII] An automatic slide projector has two slide carriers fed forward alternately by one slide by Maltese cross drives with their striker pins set 180 degrees apart the projection system having optical elements moved in synchronism with the slide feed so that slides in the two carriers are projected alternately, each while the other carrier is being fed. As shown in Fig. 8, each slide is carried in an apertured plate 29 with hook-shaped lugs 34 to hold the slide over the aperture where it is retained by a pin 36 projecting through the plate from a spring blade 35 which is lifted to withdraw the pin and released when the slide is in position. The plates are connected to form a chain by hinge portions 30 so that the chain can be folded zig-zag fashion, one hinge pin 27 at each alternate joint projecting beyond the plate. Two such endless chains are arranged side-byside in the projector shown in Fig. 2. Each chain passes from a drum 25 to a drum 16, down through a guide 32 past a projecting position and along guide rails 28 where it is supported by the projecting pins 27. The drums 16 are driven from the motor 2 through the Maltese cross mechanisms. The drive to the common striker pin shaft is through a ratchet so that small feed movements can be made by hand by an external knob 11. The motor also drives a cam 43 by which an inclined mirror 49 is moved vertically into the path of the illuminating beam intermittently. A pair of oppositely inclined mirrors 54, 55 is reciprocated vertically at the same time, the weight of all the mirrors being balanced by a spring 56. The reciprocating mirrors and the fixed mirrors 40, 41, 42 provide two light paths alternately, as shown in Fig. 5, to project from the slide chains alternately through the objective 31.
Patent GB-1471823-A (GB)
Title: Internal combustion engines
IPC: F01N3/32
Filed: 1975-04-11
Abstract: 1471823 Spray carburetters controlling engines DEUTSCHE VERGASER GmbH & CO KG 11 April 1975 [31 May 1974] 15026/75 Addition to 1421821 Headings F1B and F1H The method and apparatus, for controlling the operation of an I.C. engine, as defined in any claim of Specification 1421821 is modified by the provision of a device which abruptly shuts off the supply of liquid fuel, or of air/fuel mixture to the engine and/or to the afterburner, in response to a signal which is given in conditions when there is a risk of a predetermined excessive amount of hydrocarbon fuel reaching the afterburner and causing damage to the afterburner. One or more valves, as described below, are provided, each or any of which may be actuated when the signal is received. The signal is an electrical signal and the valves are electromagnetically operated. Fig. 1 shows a valve 101 downstream of the carburetter, a valve 102 in the exhause pipe 15 leading to the afterburner 16 and a valve 103 at the outlet from the afterburner. Fig. 2 shows a valve 116 in the fuel feed line to the float chamber 105; a valve 117 between the main jet 114 and the emulsion tube 106; a valve 119 which drains the float chamber into the fuel tank 109; a valve 122 which connects a vacuum tank 121 to the air space above the fuel in the float chamber; and a valve 125 which connects a highpressure air supply 126 to a point between the emulsion tube 106 and the air/fuel emulsion outlet 107. Fig. 3 shows a twin-barrel carburetter, each barrel having its own float chamber and air/ fuel emulsion-forming devices. A high-pressure air supply 147 is connected to chamber 149 from which ducts 152, 153 and 154 lead to barrel 130 and duct 151 leads to barrel 129. In each case the ducts lead to a point between the emulsion tube and air/fuel emulsion outlet. The entrance to each duct is controlled by a pivoted flap valve and both valves are opened simultaneously by pneumatic actuator 156.
Patent GB-151086-A (GB)
Title: Improvement relating to the production of acetaldehyde
Filed: 1919-06-14
Abstract: The manufacture of acetaldehyde by passing acetylene into sulphuric acid solutions containing mercury compounds is carried out in apparatus whereof the parts exposed to acid and mercury are of lead which has been coated electrolytically with lead peroxide. Details of the production of the coating are given.  Specification 105,064 is referred to.
Patent GB-1512012-A (GB)
Title: Seat mounting mechanism
IPC: E02F5/10
Filed: 1975-04-14
Abstract: 1512012 Adjustable seats E S THORNTON and K A GARNETT [trading as THORNTON & GARNETT] 14 April 1975 [27 April 1974] 15109/75 Divided out of 1512011 Heading A4J Also in Division A1] A seat 30 and control console 16a, supported on a platform 42, can be raised and lowered without tilting by mounting the platform 42 on a vertical axis 35 of a parallelogram frame which can be displaced by an hydraulic ram 45. The parallelogram frame comprises a fixed upright 20 having pivoted arms 34, 35 and bracing struts 41, 44. Use of the device is described in association with a mole plough of the kind described in Parent Specification 1512011.
Patent GB-1346085-A (GB)
Title: Method and apparatus for the automatic control of the perforation of holes in control cards for the manufacture of patterned textiles
IPC: D03C17/00
Filed: 1971-05-14
Abstract: 1346085 Card punching machines J BITTERLICH 14 May 1971 [14 May 1970] 15118/71 Heading D1E A card punching machine 4 for punching a pattern upon a endless card 85, row-by-row, in dependance upon the colour printed row-byrow, upon a design pattern 8, has an optical device 9 for, scanning the pattern 8 and a further optical device 10 which scans a colour free portion 8a of the pattern 8, which has been separated from and aligned with the pattern 8, and which activates the punching machine 4 whenever it crosses a vertical line of the pattern to ensure that the optical device 9 scans the centre of a coloured square.
Patent GB-1094798-A (GB)
Title: Process for the production of microspheroidal silica
IPC: B01J21/08
Filed: 1966-04-05
Abstract: Microspheroidal silica is prepared by gelling with gaseous CO2 an alkali metal silicate solution having a silicate content expressed as silica of from 3 to 12% by weight, adding to the gel sufficient mineral acid to adjust the pH to less than 7, then adding a quantity of ammonium hydroxide to raise the pH into the range from above 7 to 9.5, spray drying the gel, and washing the spray dried gel to remove soluble impurities. If desired, the gel may be aged at 21 DEG  to 82 DEG  C. for a period of up to 3 hours between the initial gelation and the acid treatment and between the acid treatment and the ammonia treatment and it may be aged at the same temperature for up to 6 hours between the ammonia treatment and the spray drying.  The product is said to have a surface area of 100-600 m.2/gm. and a pore volume greater than 1 c.c./gm.  The preferred alkali metal silicate is sodium silicate and the silicate solution may have a silica to alkali metal ratio of from 3 : 1 to 3.4 : 1.  The preferred mineral acid is sulphuric acid.  In the washing step, the gel may be washed with a dilute mineral acid of concentration 0.2 to 5% by weight, e.g. 0.5 to 2 DEG  B<\>ae sulphuric acid, or an aqueous solution containing 0.5 to 5% by weight of ammonium sulphate.  The silica gel may finally be dried to a moisture content of 4 to 15% by weight, the drying temperature being 120-260 DEG  C.
Patent GB-418319-A (GB)
Title: Improvements in and relating to safety valves
IPC: F16K17/08
Filed: 1933-05-25
Abstract: 418,319. Safety valves. STEVENS, A. H., 5, Quality Court, Chancery Lane, London. - (Crosby Steam Gage & Valve Co. ; 38, Central Street, Boston, U.S.A.) May 25, 1933, No. 15152. [Class 135.] In a valve more particularly for high-pressure steam, the valve-disc 32 is supported in a holder 30 so as to permit slight swivelling movement and also expansion, and the disc has a narrow, slightly-raised rim to engage a seat formed on the throat-tube 12. The spherical end of the stem 20 bears on the disc through a thrust block 42 and is held in the holder 30 by a snap ring 28. The holder slides like a piston in a guide-tube 16 carrying a ring 56 to adjust the closing pressure. The throattube 12 carries an adjustable ring 54, the edge of the throat-tube being bevelled downwards and the ring 54 upwards to increase the lift. The valve disc 30 is bored at 40 to ensure uniformity of temperature, and the throattube 12 is grooved at 50 so as to be springy.
Patent GB-636313-A (GB)
Title: Improvements in or relating to electrical beam sweeping apparatus for directive transducers
IPC: G10K11/34
Filed: 1945-06-14
Abstract: 636,313. Electric transformers. STEVENS, A. H. (Submarine Signal Co.). June 14, 1945, No. 15185. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 15, 1946.] [Class 38 (ii)] [Also in Groups XXXVII, XXXVIII, XXXIX and XL (c)] A device for producing a directive beam of radiant energy (see Group XXXVIII) comprises a three-phase power transformer with twelve secondary windings so arranged and connected as to form a voltage source whose voltage vector diagram is a regular polygon. The transformer comprises three closed magnetic paths each comprising a rectangular frame made up from U-shaped laminations 61, Fig. 12, and straight laminations 62, the joints being butted as shown. Three rectangles are placed together as shown in Fig. 10 with the corner of one leg resting slightly inside the corner of the leg before it and two adjacent legs from a core such as 59 on which a coil 64 is wound. Specification 146,189, [Class 118 (ii)], is referred to.
Patent GB-585939-A (GB)
Title: Improvements in and relating to hydraulically operated coupling means for the attachment of agricultural implements to tractors
IPC: B60D1/00
Filed: 1944-08-11
Abstract: 585,939. Agricultural implements. EWING, R. W. C. Aug. 11, 1944, No. 15367. [Class 6 (i)] [Also in Groups XXIX and XXXII] In a hydraulically operated coupling means for raising or lowering an agricultural implement connected to a tractor, a power piston 3, Fig. 1, on the tractor frame or tow-bar rotates a shaft 3c having at each end an arm 3e connected to links 3f, 3g, the arms 3g being pivotally connected to the frame of the implement whilst a further link, not shown, is connected to the cover of a casing 1, housing the power operated means, and to a braced upright secured to the implement frame. The casing 1 contains a pump 4, the power piston 3 in a cylinder 2, and a control valve 12, Fig. 4, and non-return valve 16 in a casting attached to the cylinder 2. The control valve is provided with a flange 15 which is raised by the skirt of the piston 3 at the top of its stroke to cut off the supply of fluid to the power piston by obscuring a port 10 leading to a chamber 11 housing the non- return valve 16. A hand-lever 20 is depressed when the links are to be raised, the lever moving the control valve downwardly until the port 13 therein registers with ports 9, 10 the pressure fluid flowing through pipe 7, ports 9, 13, 10 to chamber 11 and thence through non-return valve 16 and pipe 19 to the bottom of cylinder 2. When the piston reaches the top of its stroke its skirt contacts the flange 15 to raise the control valve 12 and automatically cut off the pressure fluid from the cylinder 2 and divert it to the sump through a recess 14a in the control valve. The links are lowered into an adjusted position by raising the lever 20 to dislodge the non-return valve 16 from its seating, the fluid from the power cylinder passing through a throttling orifice 20c in the control valve to regulate the speed of descent of the piston.
Patent GB-476169-A (GB)
Title: Sheet-metal wheel bodies
IPC: B60B3/00
Filed: 1936-06-02
Abstract: 476,169. Vehicle wheels. RUBERY, OWEN, & CO., Ltd., and FREEMAN, P. J. June 2, 1936, No. 15373. [Class 144 (i)] [Also in Group XXII] A sheet-metal wheel body is formed by pressing the bottom 13 of a flanged cup inwards beyond the rim 12, forming spaced indentations 17 in the periphery, punching and flanging holes 18 therein and forming the flange 12 into a rim 15. A central hole 20 and bolt holes 21 are then formed in the wheel.
Patent GB-1476036-A (GB)
Title: Process for chlorinating an aromatic compound
IPC: B01J27/00
Filed: 1975-04-15
Abstract: 1476036 Chlorination of an aromatic compound DOW CHEMICAL CO 15 April 1975 15419/75 Heading C2C The invention comprises a process for chlorinating an aromatic compound corresponding to the Formula I wherein R is H, phenyl, alkyl or carboxyalkyl; R<SP>1</SP> is alkyl, phenyl, alky phenyl or halo in the ortho or meta position; and n is 0 to 2 by reacting the aromatic compound with sulphuryl chloride wherein the reaction is conducted in the presence of a metal salt and a sulphur compound at catalysts the metal salt being a halide or phenoxide of antimony, aluminium, iron, tin, titanium or zinc and the sulphur compound being thiophene, p-dithiane, diphenyl sulphide, thianthene dibenzyl sulphide, polyphenylene sulphide, diphenyl disulphide, thiophenol, dibenzothiophene, pentamethylene sulphide, or any one of said compounds substituted by allyl, alkoxy, phenyl or halo; or carbon disulphide whereby a compound of Formula I having from 1 to 3 chlorine atoms on each phenyl ring is produced.
Patent GB-120945-A (GB)
Title: Improvements in or relating to the Pre-heating of Vaporizers of Oil Stoves or Lamps.
Inventor: BROCK CECIL WILLIAM
IPC: D04B9/26
Filed: 1917-10-25
Abstract: 120,945. Brock, C. W. Oct. 25, 1917. Vaporizing-apparatus; wicks.-In order that the - ordinary paraffin &c. consumed by a vapour stove or lamp may be used also in the preheating-receptac e, the receptacle is provided with means serving as a wick. This wick is adapted to stand loosely in the preheating-receptacle, with its inner and outer surfaces free; but it may be suitably secured to the receptacle, if desired. In the form shown in Fig. 7, a gauze cylinder a is arranged in. the starting-cup c, and is preferably enclosed by. a perforated chimney, h split vertically to facilitate attachment and secured: by a splitring j. A handle b<1> is formed by extending the stiffening-wire b. Fig. 3. shows a four-fold metalgauze wick made by bending a sheet of gauze with a frayed upper edge. Alternatively, a three-fold gauze may be employed'. The wick is bent into annular, partly annular, elongated, or other form. Asbestos, fire-brick, &o., may replace the gauze, the wick, in a further modification, comprising asbestos &c. held between the upstanding parts of a U-shaped perforated' metal trough.
Patent GB-572135-A (GB)
Title: Improvements in or relating to the production of goods of or containing rubber from aqueous dispersions of rubber
IPC: C08J5/02
Filed: 1941-12-04
Abstract: Aqueous dispersions of rubber, particularly foamed dispersions, are caused to gel by addition of an aqueous suspension of sodium or other silicofluoride, the pH value of which has been increased to at least 5 by solution therein of a substance liberating fluorine ions, such as sodium fluoride.  Specifications 326,210 and 332,525, [both in Class 70], are referred to.
Patent GB-306771-A (GB)
Title: Method of and means for cleansing waste lubricating and other oils
IPC: C10G31/08
Filed: 1928-06-01
Abstract: 306,771. Fox, C. E. June 1, 1928. Purifying oils, used lubricants, &c.- Lubricating or other oil is cleansed by passing hot water, which may contain soda, acid or Fullers earth, downward through it. A tank 1, Fig. 1, containing a layer 8 of oil and a layer 10 of water is heated by an electric heater 5, which causes the water to rise through a cone 3 and tube 2, and to be distributed over the surface of the oil. In a modified form shown in Fig. 2, the water is caused by an electric heater 5, a steam coil 13, or a gas burner 14 to circulate upwards in the annular space between the vessel 1 and an inner vessel 2, and to pass downwards through a layer of oil contained in the inner vessel.
Patent GB-688747-A (GB)
Title: Process for the separation of aliphatic alcohols from hydrocarbon-alcohol mixtures
IPC: G04B19/253
Filed: 1951-07-05
Abstract: Aliphatic alcohols are separated from hydrocarbon-alcohol mixtures by esterifying the alcohols with boric acid, extracting the esters by a solvent, separating the extract phase, decomposing the boric acid esters with steam and recovering the aliphatic alcohols by distillation.  The extract phase may be treated with steam either before or after distilling off the solvent.  Suitable solvents for use in the extraction are methanol, alcohols of higher molecular weight, their methyl and ethyl derivatives, glycol and its derivatives, and aromatic and aliphatic amino-compounds.  The esterification mixture may be extracted in stages or continuously and it is advantageous that the solvent should not become saturated with the esters.  If the extraction is carried out with glycol and similar dihydric or polyhydric alcohols azeotropic mixtures with alcohols of higher molecular weight may be formed and in such a case the extract phase is diluted with water after separation of the hydrocarbon phase.  The process is particularly suitable for the separation of aliphatic alcohols from hydrocarbon-alcohol mixtures obtained as products in the catalytic hydrogenation of carbon monoxide.  In the examples alcohols are separated from hydrocarbon-alcohol mixtures obtained by the hydrogenation of carbon monoxide by forming the boric acid esters of the alcohols and extracting them with (a) 90 per cent methanol; (b) a mixture of methanol, butylene glycol and aniline; and (c) a mixture of methanol, butylene glycol and a primary aliphatic C11-amine; the extracted esters were subsequently decomposed to yield the alcohols.
Patent GB-639976-A (GB)
Title: Improvements in machines for the peripheral grinding of spectacle and like lenses
IPC: B24B9/14
Filed: 1948-06-15
Abstract: 639,976. Grinding edges of lenses. E.C.S. (COVENTRY), Ltd., and BOOTH, M. B. June 15, 1948, No. 16038. [Class 60] A machine for grinding the peripheries of lenses, more particularly spectacle lenses, wherein the roughly-shaped lens and a master are co-axially mounted for rotation together, the master bearing against a relatively fixed abutment member so as to control the rotation of the lens with respect to a grinding-wheel so that the periphery of the lens is finish ground to a contour identical with that of the master, said lens being held between two pads rotatably carried by head and tail stocks respectively, which in turn are carried by a pivoted member, is characterized in that the tailstock is adapted to be moved on, or from, the pivotal member out of alignment with the axis of the calibrated pad mounted with the master on the headstock, to permit of direct vision along the axis of the calibrated pad and master during the positioning and alignment of a lens against said calibrated pad. A member 1 is pivoted about a shaft 2 and is reciprocated along said shaft against a spring 3 by means of a cam 4 to traverse the lens 5 across the periphery of the grinding-wheel 6; the pivoted member 1 has formed integral therewith a headstock 7 having a spindle 8 on which is keyed a master 9 and a cylindrical member 10, the end face of which constitutes a pad 11 comprising a rubber ring 12 surrounding calibrations 13 on said end face. The master 9 co-operates with a fixed platform or abutment member 30. The tailstock 14 is carried by an arm 15 pivoted on the member 1 about a bolt 16 ; the tailstock pad 17 consists of a short cylindrical member 18, faced with rubber 19, mounted for limited universal pivoted movement about a non- rotatable member 20 adjustable axially in the tailstock by means of a screw 21 to advance or retract the pad 17 for clamping or unclamping the lens. The arm 15 carrying the tailstock has a catch comprising a plunger 22 urged by a spring 26 so as to engage a hole 27 in a lug 28 integral with the pivoted member 1, whereby the tailstock is held in its operative position; the plunger 22 can be retracted, by a handle 24, to enable the arm 15 to be swung about the pivot 16, to move the tailstock out of axial alignment with the headstock. The swinging movement is limited by a projection 31 on the arm 15 co-operating with a cut-away portion of a fixed washer 32 on the pivoted member 1. The tailstock may be slidably mounted on the pivoted member 1 instead of pivotally mounted thereon, or may be temporarily removable therefrom for the purpose described.