baber/WOPTO huggingface dataset:
Patent GB-596568-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J23/213
Filed: 1944-04-28
Abstract: 596,568. Electron discharge apparatus; magnetrons. RAYTHEON MANUFACTURING CO. April 28, 1944, No. 8060. Convention date, Nov. 26, 1941. [Class 39 (i)] An electron discharge device such as a magnetron, Fig. 1, comprises a cylindrical anode 4 integral with the container 1 and provided with radial grooves, -not shown, to form cavity resonators and also provided with a circumferential groove 19 into which a conducting ring 20 may be inserted to adjust the frequency. As shown, the ring is supported by a rod 21 mounted in a tube 22, adjustment being effected by bending the tube. The tube 22 may contain a getter 24. The cathode 6 is mounted axially between leads 7, 8. Energy is withdrawn by coaxial line, the inner member of which is connected to one anode sector by a lead 16 passing through a glass seal, the outer member being sealed to the periphery of the anode. In a modification, Fig. 3, the ring 20<1> carries plugs 26 which enter enlarged cavities 25 in the radial anode grooves 13 for tuning.
Patent GB-574132-A (GB)
Title: Improvements in or relating to military land mines
IPC: F42B23/04
Filed: 1942-06-12
Abstract: 574,132. Military land mines. MOT. LEY, L. June 12, 1942, No. 8096. [Classes 9 (i) and 9 (ii)] A land mine which is adapted to be projected above ground level by means of a spring or a propellent charge before exploding, and has both an impact and a time fuze incorporated in the mine to explode it on impact or after it has reached a predetermined distance above ground level, has the top surface reentrant into the bursting charge to focus the upward blast. The mine casing 1 is provided with a sleeve projection 10 which fits over a stud 9 projecting from a base-plate 3 on which is supported a battery 6 in a casing 17. Above the stud 9 is a propellent charge 7 adapted to be ignited from the battery through a switch 5 comprising a rubber tube with annular, contact segments 11, 12 which, on being compressed by a passing vehicle, completes the circuit through the battery and the propellent, so that the mine is ejected. An impact fuze 20 comprising a spring-retarded striker 18 and a detonating charge 19 is provided in a perforated tube 20 enclosed by the main charge 2 so that should the mine strike a tank or other vehicle it is exploded. The front end 1 of the mine is conically recessed in order to focus the explosive force. To operate the fuze at a height above ground if impact does not occur, a coiled string 8 is attached to the base-plate 3 and to a retaining stop 24 of a spring-actuated striker 27 so that the stop is withdrawn and the mine is fired after reaching a predetermined height above ground level.
Patent GB-109767-A (GB)
Title: Improvements in or connected with Toys, Advertising Apparatus, and the like.
Inventor: STRANDERS WALTER
IPC: A63H33/22
Filed: 1917-06-07
Abstract: 109,767. Incorporated Soldiers' & Sailors' Help Society, and Stranders, W. June 7, 1917. Moving and changing apparatus.-Relates to the type of toy or advertising device which gives a twinkling or quivering effect by the intermittent obscuring of perforations forming a design. A plate h with a perforated design is mounted in a frame f which carries at the back a freely swing- ing perforated plate &c. n. The movements of the plate n relatively to the plate h produces the twinkling effect. The frame f is provided with a hinged frame b so that the plate h can be changed, and with a handle. Colour effects may be produced by attaching coloured paper, celluloid, &c., to one of the plates.
Patent GB-1058606-A (GB)
Title: Novel hydroquinone derivatives for use as photographic developing agents
IPC: C07D257/04
Filed: 1964-02-27
Abstract: The invention comprises compounds of the general formula <FORM:1058606/C2/1> wherein each of X, Y and Z is hydrogen, an alkyl group, a hydroxyl group, an aryl group, a halogen atom, a heterocyclic group, or a phenyltetrazolylthio group, or X and Y are carbon atoms forming part of another carbocyclic ring, R is an aryl or alkyl group and R1 is hydrogen or an acetyl group or haloacetyl group. Preferred compounds of Formula II with R1 being hydrogen are those in which (i) each alkyl group which constitutes one of the groups X, Y and Z contains a maximum of 20 carbon atoms; (ii) an alkyl group which constitutes the group R contains a maximum of 5 carbon atoms; (iii) each aryl group which constitutes one of the groups X, Y, Z and R is a phenyl, tolyl or xylyl group; (iv) each heterocyclic group which constitutes one of the groups X, Y and Z is a tetrazolyl, thiazolyl or quinolinyl group.  Compounds of the above formula in which R1 is an acetyl group yield the corresponding compounds in which R1 is a hydrogen atom in alkaline solution.  The compounds of the above formula in which R1 is hydrogen, may be prepared by reacting a quinone of the formula <FORM:1058606/C2/2> with a tetrazolylthiol of the structure <FORM:1058606/C2/3> and those compounds in which R1 is an acetyl or haloacetyl group can be prepared by reacting the compounds in which R1 is hydrogen with acetyl or haloacetyl halide or anhydride. An example is given for the preparation of 1 - phenyl - 5 - tetraazolyl - thio - hydroquinone. The compounds of Formula II are useful for use in photographic development processes (see Division G2).
Patent GB-885785-A (GB)
Title: Improvements in hydraulic apparatus for transforming an applied force into an hydraulic pressure difference
IPC: F15B21/00
Filed: 1959-03-10
Abstract: 885,785. Fluid-pressure servomotor control systems. LEDUC, R. March 10, 1959 [March 14, 1958], No. 8207/59. Class 135. An hydraulic device for converting an applied force into a differential pressure according to some predetermined functional relationship comprises a reversing valve distributer movable by the applied force and provided with hydraulic pressure supply and release connections respectively which can be placed by movements of the valve in communication with opposite ends of closed circuit, there being inserted in this circuit in series two means of creating local pressure differences which vary with movements of the valve, one of the pressure differences being arranged to act on the valve in opposition to the applied force and the other pressure difference constituting the differential pressure into which the force is converted. In an embodiment, Fig. 1, the piston valve number 5 is movable in a housing 1 by the applied force F, the housing being provided with hydraulic pressure supply and release connections 4, 3, respectively, which can be placed in communication with opposite ends of a closed circuit 2, there being inserted in this circuit two flow restrictions 6 and 7. The pressures on opposite sides of the restriction 6 are applied to opposite ends of the valve number 5 so that the pressure difference opposes the force F, whilst the pressure difference across the restriction 7 constitutes the required differential output pressure which is utilizable externally from branch connections 11, 12 and is in a relationship of proportionality with the applied force F. In Fig. 2, the flow restriction 6 of Fig. 1 is replaced by a spring-centred diaphragm device 16 which permits the transmission of pressure across it whilst isolating the circuit 2 into separate fluid portions. In this case the differential pressure at the connections 11, 12 is a derivative function of the applied force F, or by reversing the positions of the diaphragm device 16 and the restriction 7 the relationship is made an integral one. More complex relationships, ineluding phased relationships, are produced by embodiments wherein the means for producing a local pressure difference comprises a flow restriction in series or in parallel with a spring- centred diaphragm device. In another embodiment, the differential output pressure at the connections 11, 12 is utilized to operate directly the slide valve of a second such hydraulic device, giving a final differential output pressure which is a complex function of the original applied force. The force F may be given by an accelerometer e.g. for control purposes in an aircraft and the device may control hydraulic jacks.
Patent GB-658343-A (GB)
Title: Method of producing derivatives of ªÐ-amino-salicylic acid
IPC: C07C233/00
Filed: 1949-03-25
Abstract: Amides of p-amino-salicylic acid of the formula <FORM:0658343/IV (b)/1> where R and R1 are hydrogen or alkyl, are prepared by reacting methyl p-amino-salicylate with ammonia and aliphatic amines. Examples are given of the reaction with ammonia and with n-butylamine, the materials being heated together in a closed vessel.
Patent GB-404500-A (GB)
Title: A new or improved electrode for electric arc welding
IPC: B23K35/02
Filed: 1933-03-18
Abstract: 404,500. Uniting by fasion. NAAMLOOZE VENNOOTSCHAP MACHINERIEEN - EN APPARATEN FABRIEKEN, Utrecht, Holland. March 18, 1933, No. 8279. Convention date, April 12, 1932. [Class 83 (iv).] A steel electrode for arc welding is coated with a paste of water glass and substantially pure magnesium silicate (e.g. talc), containing deoxidising or alloying constituents such as ferro-manganese or molybdenum, and surrounded by a sleeve of paper, such as blotting paper, impregnated with water glass, in order to obtain a non-porous weld whose notch tenacity is equal to that of the base metal. A mixture of 72 parts of magnesium silicate, 41 parts of water glass and 12 parts of ferromanganese having 50 per cent of manganese may be used. The paper is impregnated with equal parts of sodium and potassium water glass. A number of layers of paste may be used, the innermost of which has the greatest proportion of ferro-manganese &c. The electrode may be made of acid Siemen's-Martin Steel as claimed in Specification 396,331.
Patent GB-164542-A (GB)
Title: Improvements in and relating to the manufacture of through pattern tiles, floor covering and the like
IPC: B29C37/00
Filed: 1920-03-20
Abstract: 164,542. Skipsey, A. March 20, 1920. Materials, special, for tiles.-In the manufacture of through-pattern tiles, floor covering, &c., from india-rubber or rubber composition, the rubber &c., suitably coloured and in a plastic or unvulcanized condition, is rolled or moulded into strips or tubular lengths, either singly or one around another. Separate lengths are assembled parallel to each other, so as to produce the required cross-section, and cut transversely into slices. The composite rubber may be vulcanized before or after slicing, or a series of slices arranged edge to edge may be vulcanized collectively and formed into a single piece : the slices may be vulcanized on to a canvas or other backing.
Patent GB-437010-A (GB)
Title: Improvements in sectional domestic boilers
IPC: F24H1/32
Filed: 1935-03-18
Abstract: 437,010. Sectional boilers. HARVEY, F. W., Colchester, Stanford Hill, Lymington, Hampshire. March 18, 1935, No. 8384. [Class 123 (ii)] The front sections 1-4 enclose the combustion chamber and the rear sections 9, 10 are formed with water-filled baffles 11 which terminate alternately short of the top and bottom of the sections to direct the gases in a vertical sinuous path to the outlet 12.
Patent GB-142260-A (GB)
Title: Improvements in and relating to electric switches for electrically driven compressing apparatus
IPC: H01H35/38
Filed: 1919-04-03
Abstract: 142,260. Melano, C., (Borgarello, Fratelli). April 3, 1919. Starting and stopping pumps automatically.-A switch for automatically controlling e l e c - trically-driven fluid compressors according to the pressure of the fluid comprises a piston d subject to the fluid pressure in a pipe c and actuating a switch lever n through a rod e carrying a pin r. The lever n is actuated by a spring m but is prevented from opening the circuit at a mercury cup contact k by a pivoted locking-lever s having a hook s' maintained in engagement with a lug t on the lever n by means of a weight or equivalent s'. The lever n is linked to a lever p pivoted at q and engaged by the pin r to close the switch. The operating piston d is adjustably loaded by a weight on a lever g and, when the compressed fluid reaches the limiting pressure, the piston rises, carrying with it the pin r. The latter travels up an inclined arm s<2> on the locking lever; when it has risen so as to leave the lever p entire freedom of action it causes the withdrawal of the lug s<3> from the detent t, the switch lever n being thrown at once by the spring m, making a quick break in the electric circuit. When the piston d returns to its lowest position upon fall of pressure, the pin r operates the arm p to close the switch lever n.
Patent GB-633492-A (GB)
Title: Manufacture of dyestuffs
IPC: C09B9/02
Filed: 1947-03-28
Abstract: A vat dye or anthraquinone intermediate is reduced to the metal salt of its leuco body or a complex compound comprising the metal salt with a metal in presence of ammonia, or a primary or secondary amine which will form a co-ordination compound with copper hydroxide in aqueous suspension.  The leuco body may be converted to the leuco-sulphuric ester by reacting with sulphur trioxide or the addition compound of sulphur trioxide with an organic amide or tertiary base of any substance actually used in practice for or known from the literature to be capable of, forming sulphuric esters from vat dyestuffs in the presence of metals, from leuco compounds or metal salts thereof, comprising the metal salts thereof.  Inorganic or organic salts may be present during the reduction, e.g. sodium b -naphthalene sulphonate, potassium ethyl sulphate, ferric chloride, and magnesium chloride.  Diluents specified for the reduction are benzene, chlorobenzene, acetone, pyridine, acetonitrile, ethylene dichloride, dimethylformamide, and diethylformamide.  An amide derived from a secondary amine may be present during the sulphation step, e.g. dimethylformamide, diethylformamide, dimethylacetamide, formylpiperidide, tetramethylurea, N : N - diethyl - p - toluene sulphonamide.  In examples, zinc dust is used together with a diluent and an organic or inorganic salt as specified above to reduce the following dyestuffs in presence of the amines indicated, the product being then sulphated with dimethylformamide-sulphur trioxide: (1) 6 : 61 - diethoxythioindigo, with methylamine or ethylene diamine; (2) 2-(1-amino-2-anthraquinonyl) - anthraquinone - 21 : 31 - oxazole, with methylamine, ethanolamine or ammonia; (3) 5 : 51 - dibenzoylamino - 1 : 11 - dianthrimidecarbazole with methylamine; (4) 2-chloro - 3 - acetylaminoanthraquinone, with ethylene diamine; (5) dimethoxydibenzanthrone, with diethanolamine; (6) an anthraquinonylamino - benzanthrone - pyrazolanthrone according to example 1 of Specification 344,147, with methylamine.  Dyes of the indigoid series also are referred to.  Specification 274,156, [Class 2 (iii)], and 610,117 also are referred to.
Patent GB-513061-A (GB)
Title: Cushion joints or mountings
IPC: F16F3/093
Filed: 1938-03-19
Abstract: 513,061. Resilient mountings; mounting motors. TRIGGS, W. W. (Lord, H. C.). March 19, 1938, No. 8545. [Class 108 (iii)] [Also in Group XXXI] In a resilient mounting of the kind comprising a plate member 39 perforated to receive a member 41 and a rubber element overlapping the edges of the opening in the plate member and surrounding the member 41 and bonded to both, the wall portion 42 of the rubber element is harder or reinforced to render it less resilient to deformation than the central portion of the rubber. As shown in Fig. 3 the upper surface 43 of the element is convex and the lower surface 44 is concave and an engine bracket 45, 46 is secured to the mounting by plate 48 and bolt 47, the extent to which the bolt is tightened varying the shear zone of the mounting. Under normal load the rubber is in free shear and as the load increases, the engagement of the plate 46 increases outwardly on the upper surface of the rubber thus reducing the resiliency and finally contacts with the wall 42 which is placed under compression. In Figs. 4, 5 a pair of mountings 8 are attached to the bell-housing of the transmission and to a cross-member. The front end of the engine is supported on a strut 35 by mountings 36. The rear end of the engine may be carried upon a single mounting. Specifications 447,639, 482,188 and 482,260 are referred to.
Patent GB-327271-A (GB)
Title: Improvements in connection with rotating shuttle box motions attached to fast reed looms
IPC: D03D45/34
Filed: 1929-03-16
Abstract: 327,271. Priestleys, Ltd., and Revell, U. March 16, 1929. Change-box motions. - The segmental gear wheel A on the low shaft L which operates the change-box through a star wheel S and rods, &c. B<1>, B<2> is made in two parts, the sector part carrying the teeth C<2> being slidable axially and connected by rods &c. D<3>, D<2> with the stop lever so that, on failure of the weft the sector part is automatically moved into inoperative position and the changebox remains stationary.
Patent GB-754377-A (GB)
Title: Improvements in or relating to impression taking compositions
IPC: A61K6/90
Filed: 1954-03-24
Abstract: In a plastic composition for taking dental impressions as described in Specification 754,375, the zinc fluoride is replaced by cadmium fluoride.  U.S.A. Specification 2,657,971 also is referred to.ALSO:In a plastic composition for taking dental impressions as described in Specification 754,375 the zinc fluoride is replaced by cadmium fluoride In an example 2.5 gm. of cadmium fluoride is added to a mixture of 72 gm. alkali metal alginate, 220 gm. diatomaceous earth, 7 gm. tetrasodium pyrophosphate, and 40 gm. calcium sulphate hemi-hydrate.  U.S.A. Specification 2,657,971 also is referred to.
Patent GB-127386-A (GB)
Title: Leather Stretching and Drying.
Inventor: POLINKOWSKY LIPA
IPC: C14B1/26
Filed: 1918-05-25
Abstract: 127,386. Polinkowsky, L. May 25, 1918. Clamping-devices for holding articles. - A stretched hide is held between two plates during part of the drying process, the surface of the plates 1, Fig. 5, being grooved as at 2, 3, to allow air to reach the hides, and a coating of porous and elastic material 5, such as Japanese cork, being placed on the surface. Holes 4 are made through the plate, and needle holes may be made in the cork. The hide is stretched on one plate, and another plate is placed over it, the plates being provided with flaps 9, 10, Fig. 1, to fold over the edges of the hide when the stretching-clips have been removed. The plates are pressed together to give enough friction between the hide and the plates to prevent slipping, without discolouring the hides, thus protecting the thin parts of the hides from over-stretching. The sides of the plates may be cut to allow of the removal of the stretching clips, without using flaps, or the plates may consist of planks set cross-wise. A. number of hides may be held in the same frame, the hides being separated by plates having grooves and cork coverings on both sides. A stretching-table is shown in Figs. 7 and 8. The table 19 and frame 21, 22 are provided with legs fixed to the ground. The hide is placed on the table, and ropes leading from clips on the hide are held tightly on the hooks 31. Each of the rods 21, 22 is then rotated by handles 26 to stretch the hide, the sleeves 33, 34, of increasing diameter enabling a greater tension to be exerted on the ends of the hide than in the middle.
Patent GB-636206-A (GB)
Title: Process for the production of carbon monoxide and hydrogen
IPC: C10J3/46
Filed: 1947-03-31
Abstract: 636,206. Gasifying solid carbonaceous materials. ARNOLD, C. (Standard Oil Development Co.). March 31, 1947, No. 8718. [Class 55 (i)] In gasifying solid carbonaceous materials with steam to obtain H:CO mixtures the oxygen required for partial combustion of the fuel to provide heat for the reaction is supplied by finely divided metal oxides ; further heat is contributed by the reoxidized spent material. A water gas generator 10 fed with ground coal from a hopper 1 also receives from a regenerator 20 iron oxide of a particle size rather larger than that of the coal. Steam, preheated to 1200‹-1600‹F. particularly for starting, is supplied through line 5 at a velocity such that a dense ebullient mass is formed with a well defined upper level L10 and coal ash is carried off by the product gases. Classification of the solids into layers mainly of oxide, of reacting coal and oxide and of coal may be assisted by Raschig rings &c. Spent oxide is conveyed by air through a pipe 19 to the regenerator in which an oxidizing temperature of 1500‹-2500‹ F. is maintained in the fluidized bed. Fresh oxide may be added through pipe 37 and fines discharged through pipe 39. Regenerated oxide is returned by pipe 33 to which steam is admitted. Gas from the generator passes through a solids separator 45, a water scrubber 55 and line 58 to purification equipment. Heavier material from a settler 60 receiving solids from the scrubber is returned to the generator through the steam line. Tail gas from the hydrocarbon synthesis of the product gases may also be returned as by line 5 to modify the composition of the water gas. Pressures up to about 400 lb. per sq. in., particularly if gases of increased methane content are required, may be applied in the generator, the regenerator being operated at atmospheric pressure. The carbonaceous material may comprise coal, coke, peat, oil shale heavy oil residues, cellulosic materials including lignin, and the oxides may be of iron, copper, nickel, vanadium, &c. which may be mixed with carrier materials e.g. kieselguhr, alumina or silica gels and bentonites.
Patent GB-387858-A (GB)
Title: Improvements in or relating to weighing scales
IPC: G01G1/00
Filed: 1932-03-24
Abstract: 387,858. Knife - edge bearings. BARNES SCALE CO., 6521, John R. Street, Detroit, Michigan, U.S.A.-(Assignees of Barnes, H. W.; 15805, Baylis Avenue, Detroit, Michigan, U.S.A.) March 24, 1932, No. 8743. Convention date, Nov. 24, 1931. [Class 12 (i).] In a weighing-scale wherein a load lever 20, Fig. 1, is pivoted at one end and has a resistant means (not shown) at its other end, the frame 42, Fig. 4, carrying the load platform is supported on a pair of double knife-edge bearing members 46, each having upwardly and downwardly directed edges 47, 48, the upwardlydirected knife-edges 47 receiving a pair of inverted V-shaped bearing members 50 in the frame 42, and the downwardly-directed knifeedges 48 co-operating with upwardly-opening V-shaped bearing members 52 in depending links 51 carried by the frame. The load lever 20-is of frame-like structure and at the forked fulcrum end carries double knife-edges 24, Fig. 2, each having a downwardly-directed knife-edge 25 resting in a V-bearing 26 in a post 30 integral with the base, and having an upwardly-directed knife-edge 27 bearing against a plane surface 28 in a second post 32.