baber/WOPTO huggingface dataset:
Patent GB-304855-A (GB)
Abstract: 304,855. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Nov. 2, 1927. Acetaldehyde; acetic acid.-Acetaldehyde and acetic acid are produced by passing a mixture of acetylene with hydrogen and oxygen or substances yielding oxygen over catalysts having both oxidizing and hydrating properties. Acetaldehyde is produced at 40‹-180‹ C. especially with mercury or vanadium compounds as catalysts, the oxygen not being in excess unless the acetaldehyde is to be further oxidized to produce acetic acid. For the direct production of acetic acid more oxygen is employed and suitable catalysts are salts of tin, silver, or mercury, especially those which contain vanadium in the acid radical, with or without metallic oxides or other substances, for example metallic oxides or acid anhydrides may be used as catalysts, and the temperature used is 60‹-300‹ C., preferably 100‹-250‹ C. The process may be carried out in two stages, the hydration first and then the oxidation without the previous isolation of the acetaldehyde. To avoid risk of explosion especially when using gases rich in acetylene, the oxygen and, if desired, the hydrogen may be admitted in stages, for instance at successive points. If the initial gas contains methane and small amounts of its homologues, the residual gas may be treated for instance by an electric arc or by heat treatment as described in Specification 264,845, to produce acetylene, which is then used as above described. In this manner natural gas and gases from destructive hydrogenation processes may be utilized. In an example, a mixture of hydrogen, nitrogen, acetylene, and oxygen is passed at 120‹ C. over mercuric phosphate, producing acetaldehyde. In the other examples, acetic acid is produced by passing a mixture of hydrogen, acetylene, and oxygen at 250‹ C. over active carbon carrying precipitated silver vanadate, by passing a mixture of the same gases at 120‹ C. over mineral turpeth and silver vanadate and then at 200‹ C. over asbestos carrying tin vanadate; by raising a mixture of acetylene and hydrogen through a series of chambers, some of which contain silver vanadate and others tin vanadate at 220‹ C., oxygen being admitted into each chamber; and by passing a mixture of acetylene and hydrogen at 250‹ C. over tin vanadate with the admission of oxygen at successive places, the residual gas, consisting of hydrogen and methane, being treated in an electric arc to produce acetylene.
Patent GB-1406184-A (GB)
Title: Process and an apparatus for producing images from an original or master
IPC: H04N1/29
Filed: 1973-06-27
Abstract: 1406184 Electrophotography TURLABOR AG 27 June 1973 [30 June 1972] 30505/73 Heading G2H A positive or negative toner image (depending on the polarity of the toner) of an original is produced on a copy sheet 6, Fig. 1, adjacent a lower electrode 5 electrically connectable either through a potential source 14 or directly to an upper transparent electrode 3 adjacent a photoconductive layer 4, an image of the original being projected on to layer 4 through electrode 3 and glass plate 2 while a dispersion of the toner in a resistive carrier liquid is situated between layer 4 and sheet 6 and a potential difference is applied to the electrodes, the electrodes thereafter being directly connected together. Fig. 2 illustrates repetition of the process to form a multi-colour image. A copy sheet is first supplied to electrode 5 on a reciprocatory holder 26 in the loading position (at the right hand end). Holder 26 is then returned to the imsging position past a carrier liquid applicator 45, whereafter a toner dispersion is injected at 54 between layer 4 and sheet 6. After imaging in one colour, the movement of the holder is repeated, toner being cleaned from the photo-conductive surface by a wiper blade (61) Fig. 5 (not shown) and a roller (62) associated with holder 26 and excess toner being removed from sheet 6 by a retractable roller 58, itself cleaned by the holder roller (62). The spacing between layer 4 and sheet 6 is preferably 20 to 500Á.
Patent GB-638323-A (GB)
Title: Improvements in or relating to the dyeing of textiles and materials for use therein
IPC: D06P1/56
Filed: 1947-11-18
Abstract: A condensation product of the probable formula <FORM:0638323/IV (b)/1> (in which R1 and R2 are alkyl groups of 12 to 18 carbon atoms and R3 is a methyl or ethyl group) are prepared by reacting a fatty amine of 12 to 18 carbon atoms with formaldehyde and thereafter treating the product with a lower alkyl sulphate having from 2 to 4 carbon atoms in the molecule. Examples of suitable amines are octadecylamine, tetradecylamine and dodecylamine.ALSO:The fastness properties of cellulosic textile materials dyed with substantive dyes is increased by treatment of the dyed materials with a compound of the probable formula <FORM:0638323/IV (c)/1> in which R1 and R2 are alkyl groups having from 12 to 18 carbon atoms and R3 is a methyl or ethyl group (see Group IV (b)).  In an example, cotton fabric dyed with a direct cotton colour, several of which are specified, is immersed in a solution of the quaternary ammonium compound, squeezed and dried at 100 DEG  C.  In another example, the solution of the quaternary ammonium compound is applied by padding and the fabric dried at 90 DEG  C.
Patent GB-917719-A (GB)
Title: Diaphragm valve
IPC: F16K7/12
Filed: 1959-09-08
Abstract: 917,719. Valves. GRINNELL CORPORATION. Sept. 8, 1959 [Sept. 29, 1958], No. 30592/59. Class 135. The periphery 38, Fig. 3, of a rubber or rubber-like diaphragm 40 is clamped between the flanges of a tapered valve body 12 and a bonnet 36 which diaphragm controls the flow in a straight-through bore; the diaphragm has a hub 46 in which is embedded a stud 50 that is threaded to a compressor 54. In the valveclosed position, shown, a part 70 of the diaphragm is bent at a sharper angle than that of the adjacent body part 32 which enhances the sealing at this point; this result is produced by providing the diaphragm with a short rib 62, Fig. 4, one end 64 of which blends into a peripheral rib 66, disposed between the clamping flanges, whilst the other end merges into the intermediate part 44, Fig. 3, of the diaphragm. The diaphragm part 70 is not positively forced into the body part 32 by the compressor. The peripheral rib may be dispensed with. In a modification, the short rib 62a, Fig. 9, is formed on a further rib 61a which extends right across the diaphragm. These ribs may be provided on the body instead of the diaphragm. In another form, the short rib may be integral with the valve body instead of, or in addition to, a rib integral with the diaphragm. The maximum height of the short rib should be one quarter of the thickness of the intermediate part 44, Fig. 3, of the diaphragm. Specification 657,324 is referred to.
Patent GB-193137-A (GB)
Title: Improvements in or relating to the preparation of objects provided with a rubber-containing surface
IPC: C08J5/12
Filed: 1921-11-16
Abstract: 193,137. Baines, W. Nov. 16, 1921. Compound blocks.-Paving-blocks are surfaced with a rubber compound by applying to the surface of a block a vulcanizable mixing of rubber and fibres, and subjecting the block to combined heat and pressure, preferably in a mould. The mixing should contain not more, and preferably less than 30 per cent of rubber and not less than 50 per cent of fibre. Suitable fibres are cocoanut fibre, sawdust, asbestos.
Patent GB-1221658-A (GB)
Title: Emergency brakes for vehicles
Inventor: MCCARTHY HENRY ANTHONY
IPC: B60T1/14
Filed: 1967-07-04
Abstract: 1,221,658. Skid brakes. H. A. MCCARTHY. 27 June, 1968 [4 July, 1967], No. 30634/67. Headings F2E and F2F. An emergency skid brake for a motor wagon comprises a metal plate 2 extending across the width of the vehicle and suspended at each end by struts 3 pivoted on the chassis. The brake is actuated by an hydraulic jack 5 connected to the middle of the plate fed from hydraulic reservoir 11 through control valve 13 which also supplies a small hydraulic jack 10 to release the latch 7. The main jack is raised and the latch reset by a hand-pump 15.
Patent GB-388487-A (GB)
Title: Automatic gun
IPC: F41A3/72
Filed: 1931-11-05
Abstract: 388,487. Automatic guns. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST V. BRNE, and STALLER, K., 7, U Lazaretu, Brunn, Czecho-Slovakia. Nov. 5, 1931, No. 30730. [Class 92 (ii).] Relates to automatic guns of the kind in which the firing-mechanism casing 15 carrying the sear 10 is slidable in guides on the gun casing 6 from a forward inoperative position to a rearward operative position. According to the invention, the slidable casing is fixed in the rearward position by means, such as a catch 60 engaging a fixed stop 67, which can be operated independently of the sear. The firing mechanism shown is that described in Specification 391,143 which is adapted to be adjusted by a lever 41 to single-shot fire, automatic fire or safe, and to be released by pressing a button 30. A foldable handle 20, Fig. 4, for sliding the casing 15 is so arranged that when it is grasped only the firing button 30 or the lever 63 for releasing the catch 60 can be operated. The casing 15 serves in its forward position to close the cartridge ejection opening 70.
Patent GB-277532-A (GB)
Title: Improvements in and relating to rotary engines, pumps and the like
IPC: F01C1/36
Filed: 1926-12-04
Abstract: 277,532. Christiein, P. Dec. 4, 1926. Fixed-abutment type; replacement of internal parts, facilitating ; discharge and suction pipes and passages for pumps; packing vanes.-The rotor d of a rotary engine or the like which comprises rotary vanes a moving round in an annular space divided by one or more abutments s<1> is formed with end plates b which enclose the working spaces and have relatively long peripheral surfaces 3 coacting with the inner peripheral surface of the casing but with a small clearance therefrom so that the pressure in lateral clearance spaces 2, 2<1> remains below the maximum pressure in the working space. The abutments s<1>, which are separately formed and readily replaceable radiallythrough the casing, are formed with inlet and outlet passages 5, 6 of a cross-section approximately the, same as that of the annular working space and may be fitted with spring non-return valves 7. Ribs 8 are formed on the casing periphery to prevent back-flow when the groove in the vane is adjacent the periphery. The vanes are caused to roll round the casing by pinions n<1> on the vane axles meshing with pinions n carried by the rotor which roll round a pinion m formed on a bushing l fixed to the casing and supporting the rotor shaft g. The number of rotary vanes may be such that at least two are always moving in a working space.
Patent GB-501911-A (GB)
Title: Improvements in variable speed drives in precision grinding machines
IPC: B24B47/10
Filed: 1938-10-25
Abstract: 501,911. Motor - mountings. CHURCHILL MACHINE TOOL CO., Ltd., and ASBRIDGE, H. H. Oct. 25, 1938, No. 30803. [Class 35] [Also in Group XXIV] In order to permit a V-belt o, or rope, to be slackened sufficient to allow it to be transferred from one V-groove to another in stepped driving and driven pulleys g, e on a precision grinding machine, a driving electric motor a, carrying the pulley g, is mounted on a slide c, and is supported against the belt pull in the position of maximum tension by a pawl m, which can be lifted out of engagement with a fixed rack n when it is desired to slacken the belt for a shift. As shown, the pawl m is formed on a handle j, pivoted to the motor and being employed to slide the motor after raising the pawl. In a modification, the pawl is separate from the handle, which is linked to the motor.
Patent GB-520551-A (GB)
Title: Improvements in or relating to electric dry shavers
IPC: B26B19/38
Filed: 1938-10-25
Abstract: 520,551. Dry Shavers. REMINGTON RAND, Inc. Oct. 25, 1938. No. 30856. Convention date, Nov. 17, 1937. Addition to 520,538. [Class 131]. In a dry shaver having an outer cutter 15 enclosing a reciprocating inner cutter 16, means are provided for giving the cutter assembly a limited' outward movement so as to disengage the inner cutter from its driving-lever 18 and spring-pressed pins 20 so that the inner cutter may be removed without detaching the outer cutter from the handle. The limited movement takes place in a casing groove 14 when a thumb screw 13 is turned out of engagement with a depression 30 in the member 15, springs 22 forcing the cutter assembly upwards until a stop 29 engages the thumb screw. A lug 23 engages a groove 27 to secure proper alignment.
Patent GB-269442-A (GB)
Title: Improvements in or relating to coffins
IPC: A61G17/00
Filed: 1926-12-06
Abstract: 269,442. Hianne, E. Dec. 6, 1926. Corpses, treatment of.-A compartment 9 containing formaldehyde or other disinfecting liquid is arranged at the narrow end of a coffin, the vapours of the disinfectant being conducted through a pipe 10 ending in a funnel at the head' end of the coffin. The corpse is contained within a cradle 1 having a double bottom between which is contained an absorbent material such as a mixture of powdered charcoal, dry saw-dust and quicklime.
Patent GB-1237115-A (GB)
Title: Apparatus for production of castings
Inventor: PATON BORIS EVGENIEVICH
IPC: C22B9/22
Filed: 1968-06-28
Abstract: 1,237,115. Casting processes. INSTITUT ELEKTROSVARKI IMENI E.O. PATONA. 28 June, 1968, No. 30918/68. Heading B3F. [Also in Divisions C7 and H5] An apparatus for refining and casting metals comprises a cooled mould 2 connected to an electrical supply 17 and a chamber 1 above the  mould having a plurality of plasma torches 4 which are connected to the electrical supply and provide a plasma for melting a metal billet or charge. Metal charge pieces are supplied to the mould by a hopper 9. When a billet 7 is being melted, the billet may also be connected to the electrical supply. When starting the apparatus a pool of molten metal is first formed in the mould, then the billet and the mould stool 6 are moved downward and cooling of the mould is commenced. The plasma torches are arranged around the billet so as to impart a rotatory movement of the molten metal in the mould, this ensuring even solidification of the metal. The atmosphere and pressure in the chamber 1 may be controlled. Filters, chemical purification apparatus 16 and pumps 15 are provided to recondition and recirculate the gases in the chamber.  Unkilled. metals (iron, nickel and alloys thereof) may be reduced by supplying hydrogen or a hydrogen/argon mixture to the plasma. Alloys which form oxide scabs when poured in air or steels containing non-metallic inclusions may be refined by adding a layer of slag to the top of the mould. Nitrogen containing steels may be remelted or saturated with nitrogen by operating the plasma torches with argon/ nitrogen or pure nitrogen. Heating by electricity.-The melting of the billet and the falling of drops of the melt therefrom may be controlled by interrupting either the supply of electricity or plasma forming gas to the plasma torches.
Patent GB-985949-A (GB)
Title: Apparatus for the wet treatment of webs
IPC: D06B17/02
Filed: 1962-08-13
Abstract: 985,949. Treating webs. BENTELER INTERTEX ORGANISATIONS A.G. Aug. 13, 1962 [Aug. 12, 1961], No. 31029/62. Heading D1L. To enable the initial length of web which is fed into a web treating machine comprising a row of troughs 3 and conveying means (e.g. rollers 6 and 5) at the inlet to each trough, to be treated for the same length of time as web which passes through the machine once all the troughs are filled, each web conveying means is driven through individually releasable clutches from a common drive and each clutch is engaged only when the preceeding trough is filled with the required length of web, this being accomplished by providing each web conveying means with a counter such that when a certain length of cloth is passed by the conveyer means in to the associated trough the counter initiates a signal which causes the clutch of the following conveyer means to be engaged; this continues until all the troughs are filled and the web is being delivered through rollers 7 which until this moment have held the forward end of the web 2 without forwarding it. The signal initiated by each counter may actuate a relay circuit and cause the succeeding clutch to be automatically engaged or it may operate on optical or acoustic signal whereupon the succeeding clutch may be caused to engage manually. In alternative embodiments the conveying means tube the form of plain rollers, hollow rollers with internal liquor catching partitions or rollers and associated conveyer belts; conveyer belts may also be employed to lift the web out of each trough. The troughs may be filled with liquor and may be replaced by J-boxes. The counters may be allowed to continue running with the associated troughs are filled and control means associated with them so that a selected clutch may be disengaged to equalise the amounts of material in each trough.
Patent GB-1025805-A (GB)
Title: Improvements relating to the supply of ink to printing machines
Inventor: FRICKER EDWARD ALBERT
IPC: B41F31/08
Filed: 1963-08-07
Abstract: 1,025,805. inking-apparatus. W. & F. G. FRICKER Ltd. Oct. 29, 1964 [Aug. 7, 1963], No. 31213/63. Heading B6C. [Also in Division F1] Apparatus for regulating the supply of ink from a reservoir 10 to the ink duct or trough of a printing machine comprises a centrifugal pump 12 immersed in the ink in the reservoir and provided with a delivery tube 18, a branch tube 19 connected to the tube 18 and opening at 20 into the reservoir, a branch tube 24 smaller than the tube 19 connected to the tube 18 below its connection to the tube 19 and leading to the ink duct, and a plunger 21 adjustably mounted in the closed upper end of the tube 18 and adapted to be adjusted by a screw device 22 in order to regulate the rate of delivery of ink from the pump to the ink duct. The ink in the reservoir is continuously circulated by the flow from the opening 20. An overflow pipe 25 is provided from the ink duet back into the reservoir.
Patent GB-1470256-A (GB)
Title: Process for flavouring foods
IPC: A23L27/20
Filed: 1974-07-15
Abstract: 1470256 Cheese flavouring UNILEVER Ltd 15 July 1974 [17 July 1973] 31268/74 Heading A2B A Fontina cheese flavour is given to a foodstuff by adding thereto a composition comprising #-phenylpropionic acid and non- terminal mono-methyl substituted alkanoic acids having 4-6 carbon atoms, said substituted alkanoic acids comprising at least 50% by weight of iso-valeric acid. The composition may be added in such amount that the foodstuff contains 10-100 mg/kg #-phenylpropionic acid and 20-300 mg/kg substituted alkanoic acids. Other known cheese flavouring agents may be added such as C 2 -C 8  straight chain alkanoic acids, C 3 -C 9  primary alcohols and secondary 2-alkanols, C 2 -C 5  aldehydes, C 5 -C 9  alkanones, ethyl esters of C 4 -C 8  straight chain alkanoic acids, and diacetal, methional and indole.' '-Amino acids such as L-glutamic acid, glycine, L-lysine and DL-methionine as the free acid or sodium salt may also be added to the composition.
Patent GB-444304-A (GB)
Title: Stop-motion device for sewing machines
IPC: D05B3/08
Filed: 1935-11-13
Abstract: 444,304. Sewing-machines. SINGER MANUFACTURING CO., Elizabeth, and GUNTHER, H., 852, Livingston Street, Elizabeth, New Jersey, U.S.A. Nov. 13, 1935, No. 31380. Addition to 425,587. [Class 112] The stop motion device described in the parent Specification is simplified to avoid any of the working parts of the machine taking the strain caused by stopping. The operation is as follows : in Fig. 1, the pin 40 on the arm 36 is in the hole 41 in the feed cam and the stop-rod 31 is engaged by the stop-lug 9 in the hand-wheel 7 blocking the forward movement thereof. The operator places a button and material in the clamp 19 and pushes down the button 38 whereupon the pin 40 is withdrawn from the hole 41 and the spring 33 shifts the stop rod 31 and arm 36 to the position shown in Fig. 4 in which the end 32 of the stop-rod is out of range of the lug 9 on the hand wheel and the pin 40 is displaced to one side of the hole 41 in the feed cam. Hence the push button may be released. The machine is now free to be driven through a sewing cycle during which the feed cams 20, 21 make one complete revolution. When the hole 41 comes into register with the pin 40, the pin snaps into the hole and the lug 9 is about 180‹ from its final stopping position. Continued movement of the hand wheel 7 causes the cam 20 to drive the parts to final stopping position, the rod 31 being projected by the arm 36 into the range of the stop lug 9. The strain of stopping is borne directly by the shaft 6 and not the feed cam and worm-gearing 22, 24.
Patent GB-948408-A (GB)
Title: Combination sink unit
IPC: D06F39/00
Filed: 1961-09-01
Abstract: 948,408. Drying apparatus. L. J. SCHAVERIEN, and B. MARKS. Nov. 30, 1962 [Sept. 1, 1961], No. 31466/61. Heading F4G. [Also in Divisions A4, B1, B2 and D1] A perforated rotatable drum 49 (Fig. 11) is removably mounted in a domestic sink 1 for automatically-sequenced washing, rinsing and hot-air tumble-drying of clothes, a blowerheater (not shown) being provided. The drum 49 slides into radial slots in two bearing members, being held in by members 54 having catches 55. One of the bearing members, 53, is supported in a bearing 52 recessed in the sink wall and the other is attached to an adaptor 16 (Figs. 12, 3, not shown) fitting over a wateragitator 3 (Fig. 3, not shown) in a recess 2 in the sink wall. The drum 49 is driven at a variable speed from a motor through the agitator 3. Fig. 17 shows a vertical-axis spindrier 70 driven in the sink 1 at a variable speed from the water-agitator through an adaptor 58, 59 (see Figs. 15, 3, not shown, for details). The sink 1 is provided with a lid 57 incorporating a safety switch which prevents the spin-drier working except when the lid 57 is in position.
Patent GB-601294-A (GB)
Title: Improvements in or relating to electric plug and socket couplings
IPC: H01R13/15
Filed: 1945-11-22
Abstract: 601,294. Two-part couplings. BAC. F. G. Nov. 22. 1945. Nos. 31541 and 31542. Convention dates. Nov. 3, 1944 and March 30, 1945. [Class 33 (i)] In a plug and socket coupling of the type shown, Fig. 1, the plug comprises a nest of frustoconical rings each provided with a solid part 1 and a slotted contractile part 2. The rings are threaded on a pin 3 and secured by turning over its head 4, the parts 1 having a smaller apex angle than the parts 2. Alternatively, Fig. 2 (not shown), the conical parts are inverted relative to one another and are secured on the pin by a conical spacer and a nut. Fig. 5 shows a modification of the plug in which each ring is provided with a cylindrical part 1<1> and a conical part 2, the nest of rings being retained on the pin 3 by a washer 6 and a nut 7. In a further modification, Fig. 6 (not shown) the slotted conical part 2 is replaced by a cylindrical part which is joined to the part 1<1> by a conical frustum, and is provided preferably with beaded contact edges to engage tightly in the socket. In a socket as shown in Fig. 3, the nest of rings is supported in a connecting piece 13, the rings, slotted at 11, being soldered together at 12 and to the connecting piece at 12a. The socket is modified, Fig. 4 (not shown) by replacing the connecting piece by a suspension piece fitting into the first ring, the suspension piece being. set in a supporting base. The Specification as open to inspection under Sect. 91 comprises also plugs and sockets consisting of conical rings nesting in cylindrical portions which may be of the same diameter, Figs. 3, 4, 7, 8, 12, 18 (Cancelled) (not shown), or of increasing diameters, Figs. 11, 13 ... 17 (Cancelled) (not shown). One form of socket, Fig. 7 (Cancelled) (not shown), comprises a tube whose end is turned over the upper ring of a nest. Multi-connection concentric plugs and sockets, Fig. 19 (Cancelled, not shown), are also described in which the rings are insulated from each other and an alternative in which an inner nest of rings is mounted within and insulated from an outer nest. This subject-matter does not appear in the Specification as accepted.