baber/WOPTO huggingface dataset:
Patent GB-491072-A (GB)
Title: Manufacture of tanning agents
IPC: C14C3/22
Filed: 1937-02-20
Abstract: Tanning-agents are obtained by introducing into a natural resin one or more halogen atoms or carboxylic groups or groups containing these atoms or groups, and sulphonating a mixture or a reaction product of the resin so treated and a phenol; the sulphonation product is then freed from adhering electrolytes, suitably by washing it with an aqueous solution of 2-10 per cent strength of an alkali-metal or ammonium salt.  The products may be used alone or in association with other tanning-agents.  The introduction of carboxylic groups or groups containing a carboxylic group into a natural resin may be effected by reaction of the resin with (a) a hydroxy-di- or -poly-carboxylic acid, such as malic, tartaric or saccharic acid, or (b) an amino-di- or -poly-carboxylic acid, or (c) an unsaturated polycarboxylic acid such as maleic or fumaric acid, or (d) a halogenated aliphatic acid such as chloracetic acid, or (e) an aromatic hydroxycarboxylic acid such as salicylic acid.  In the examples, (1) colophony is chlorinated in carbon tetrachloride, and the product is heated with commercial cresol; sulphonation is then effected with sulphuric acid, and the sulphonation product is washed with 5 per cent sodium-chloride solution; (2) colophony is heated with chloracetic acid in the presence of zinc chloride, and the product is heated with phenol; sulphonation and washing are then effected as in example 1; (3) German pine resin is heated with maleic anhydride, and the product is heated with commercial xylenol; sulphonation and washing are then effected as in example 1; (4) colophony is heated with citric acid, and the product is heated with commercial cresol and sulphuric acid and then washed as in example 1. Specifications 489,967 and 490,296 are referred to.  A sample has been furnished, under Sect. 2 (5), of a product prepared as follows: abietic acid in carbon tetrachloride solution is treated with hydrogen chloride, and the product is treated with phenol in the presence of aluminium chloride, zinc chloride, boron fluoride or stannic chloride; the mixture is heated to expel the solvent and hydrogen chloride, and the product is treated with dihydroxydiphenylmethane and then sulphonated.
Patent GB-274751-A (GB)
Title: Improvements in portable water heaters
IPC: A47J36/26
Filed: 1927-02-24
Abstract: 274,751. Popplewell, R. F. Feb 24, 1927. Open tray and like burners.-A spirit burner D comprises an outer cylinder with a ring of perforations d<4> and an inner cone d<1>, a close fit at the top and secured as by soldering at one edge d<3> of the open slanting bottom, supplied with spirit from a container through a tube b with tap c. Dimensions are given of a burner and a water vessel supported by the container so proportioned as to boil sufficient water for a suitable time for shaving.
Patent GB-312116-A (GB)
Title: Improvements in or relating to mercury vapour arc lamps
IPC: H01J13/00
Filed: 1928-02-20
Abstract: 312,116. Blake, G. J., and Leadbetter, G. D. G. Feb. 20, 1928. Addition to 294,288. L o w - pressure metallic-vapour apparatus. - A lamp according to the parent Specification has upstanding tubes a<1> at each end of the lighting tube so as to trap vapour or gas, or both, given off by the mercury. In a modification the tubes a<1> are connected together by a tube arranged so as to avoid short-circuiting of the arc. The lamp is mounted in a two-part insulating moulding E, one part carrying springs b<2> for supporting and connecting the heating resistance D, and spring contacts b' for the lamp.
Patent GB-556821-A (GB)
Title: Improvements in or relating to hydraulic surge apparatus
IPC: B64C25/22
Filed: 1942-04-20
Abstract: 556,821. Hydraulic power systems. COSTA, H. DA, and PLESSEY CO., Ltd. April 20, 1942, No. 5267. (Class 69 (ii)] In a hydraulic power system in which high power is required for a short duration such as may be required on aircraft, the pump 27 is adapted to be driven to produce a surge of pressure from a flywheel 14 which is speeded up to store kinetic energy by being driven from an electric motor 10 under control of a governor 15 and a motor control device 18. The pump is started by throwing-in a clutch member 24 by operating a lever 28, and the pressure fluid passes to the device to be operated via a pipe 37 and non-return valve 38. The pump inlet 32 is connected to a sump 33 by a pipe having a non- return valve 34, and is also connected to a secondary bleed line 35 leading to the engine pressurelubricating system which keeps the pump primed. A non-return valve 36 is fitted in this system.
Patent GB-693135-A (GB)
Title: Improvements in closures for bottles, jars and similar containers
IPC: B65D41/04
Filed: 1951-03-06
Abstract: 693,135. Stoppers &c. LINDSTROM, A. C. March 6, 1951 [March 6, 1950], No. 5430/51. Class 125(iii) Closure means for bottles &c. has a screw cap land a sealing element consisting of a sleeve-shaped body 7 with a conical radial flange 9, the sleeve 7 fitting over a central projection 5 on the bottom of the cap which guides the element in the cap, the flange 9 sealing against the neck of the bottle 4 when the cap is screwed on. To prevent the sealing element sticking to the bottle when the cap is removed the projection 5 may have a diametrical groove 10 engaging a rib 11 on the lid 8 of the sleeve so that the sealing element is forced to rotate when the cap is unscrewed. Modifications show different shapes for the groove 10 such as axial grooves and ribs. In another modification the sleeve 7 is replaced by a stud which slides in a recess in the projection 5.
Patent GB-553773-A (GB)
Title: Improvement in ball winding machine
IPC: B65H54/66
Filed: 1942-04-23
Abstract: 553,773. Winding golf balls &c. BOGOSLOWSKY, B. April 23, 1942, No. 5466. [Class 120 (ii)] A machine for winding golf &c. balls comprises winding heads mounted for rotation on a common axsi, each head being constituted by a pair of oppositely rotating ports each of which has a working surface adapted to engage the ball and each mounted for continuous rotation on an axis parallel and eccentric to the common axis of the winding heads; the parts may be shaped to mesh like gears, the working surfaces of each part may be coplanar and parallel to the surfaces of the other part, and the working surface of one of each pair of parts may be greater than that of the other part. As shown the winding heads 9, 9<SP>1</SP> are carried by brackets 12 on hollow shafts 8 driven by gears 52, 54 from a driving shaft 4 and slidable in sleeves 55 on the gears 54; sleeves 68 loose on the shafts 8 and disposed between collars 70, 71 fixed thereto are engaged by arms 66 fixed to shafts 63 carrying arms 62 having engaging toothed sectors 61 connected by wires 60 with a weight I which forces the heads towards one another and holds the ball yieldinglyl between them. Each head comprises a disk-like member 9A carried by a shaft 83 in the bracket 12 and having a notch 90 adapted to engage a toothed-like member 9B carried by a shaft 87 in the bracket, the shafts 83, 87 being equally offset from the shaft 8 and geared to a shaft 79, disposed in the shaft 8, to rotate in opposite directions. As the ball is formed it is rotated about the axis of the shafts 8 by the rotation of the head engagement between the members 9a, 9a<SP>1</SP> of the head 9, causing it to be rotated also about an axis inclined to the axis of the shafts 8 and when the ball is engaged by the members 9B, 9B<SP>1</SP> of the head it is rotated about an axis similarly inclined to the axis of the shafts 8 but in the opposite direction, these inclined axes shifting as the ball is wound but all the axes intersecting at the centre of the ball. The faces of the members of the heads may be provided with shallow grooves and may be covered with a thin layer of rubber. The thread passes from a rotatable supply spool to a braked tension pulley and through a fixed slotted thread guide 72 to the ball 10.
Patent GB-193871-A (GB)
Title: Improvements in the processes and apparatus for the reduction of chemical substances, such as alkaline earth sulphates, and more particularly calcium sulphate
IPC: C01B17/44
Filed: 1923-02-26
Abstract: 193,871. Bourdet, A. E. P. Feb. 27, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Shaft furnaces; discharging.-In the reduction of chemical substances, such as the production of alkaline earth sulphides frcm sulphates, the material e is charged from a closed hopper c into a shaft furnace a into which gases from another furnace (for instance a producer) are injected by tuyeres b. Air which may be heated is admitted to burn the gas. The arrangement shown consists of baffle chambers j around the lower part of the furnace serving to cool the charge and heat the air entering at g. The heated air is withdrawn by a pipe h or may be sent by a branch h<1> to mix with the gas in the pipe i which supplies the tuyeres. The cooled material is discharged into a chamber d by sliding certain members of the grate. The process may be carried on continuously. Instead of passing air through baffle chambers j, the lower part of the furnace may be water-cooled.
Patent GB-280160-A (GB)
Title: Improvements in air pumps or compressors
IPC: F04B39/08
Filed: 1927-02-28
Abstract: 280,160. Voreaux, P., and Soc. Etablissements Samga et Bavox RÚunis. Nov. 6, 1926, [Convention date]. Valves, arrangement of.-An air pump comprises a pair of cylinders communicating by a port 5 and each containing a piston; one piston 11 acts as a valve controlling the suction, and is provided with a deep circular recessed passage 12 for air entering by a port 13; its lower part is cut away on one side as shown. Air is drawn into. the cylinder 3 and delivered to the cylinder 2 through the port 5 while both pistons are falling, this air being subsequently delivered to the cylinder 3 above the piston and discharged through a valve 15.
Patent GB-137424-A (GB)
Title: Improvements in and relating to flexible shafting
IPC: F16D3/72
Filed: 1919-03-07
Abstract: 137,424. Atkinson, E., and Haythorn, J. March 7, 1919. Gearing with provision for permitting flexure or distortion; spring drives. - For connecting the crank or countershaft of a motor-vehicle to the rear axle k, or for other purposes, a flexible shaft is employed comprising a. spring coupling a cut from a solid block of nickel steel &c. and having integral end flanges a<1>, a<2> bolted to short shafts b<1>, b<2>, which carry gear wheels c, d for transmitting the drive. The shafts b<1>, b<2> are carried in casings g, j, which are carried rotatably on the crank-case cover h and the axle k, respectively. A socket g<2> on a bracket attached to the vehicle frame embraces a ball projection g<1> on the casing g.
Patent GB-1413744-A (GB)
Title: Electrophotographic contact printing process
IPC: G03G13/22
Filed: 1973-02-05
Abstract: 1413744 Electro-photographic process SCOTT PAPER CO 5 Feb 1973 [11 Feb 1972] 5636/73 Heading G2H A method of electro-photography comprises the steps of (a) applying an overall charge to an electro-photographic material comprising a base support having a photo-conductive layer thereon, (b) applying a layer of a dielectric liquid to the charged surface of the photo-conductive layer, (c) placing an original to be copied in contact with the layer of dielectric liquid, (d) imagewise exposing the material for light passing through the original, (e) separating the original from the exposed material and (f) developing the image. Examples of suitable dielectric liquids are given.
Patent GB-287160-A (GB)
Title: Improvements in or relating to electric-arc devices
IPC: H05B31/00
Filed: 1928-02-22
Abstract: 287,160. Rocard, Y. A., and Rothschild, P. de. March 17, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts ]. Arc lamps; electrodes.-A current of gas is directed along one or both electrodes of an electricarc lamp to the arc. The gas may issue from a series of separate nozzles surrounding the electrode or from an annular nozzle 8, Fig. 5. A direction tube 10 may surround the electrode and may be connected to either lead through a resistance, to prevent sparking between it and the electrode. The gas conduits may be formed by a corrugated tube 11, Fig. 7, or separate segments 13, Fig. 8, secured to the electrode, or passages may be formed in the electrode, and filled with matter which gives off gas on heating. When the invention is applied to a searchlight, the searchlight casing may be closed and exhausted by a [an 16, Fig. 10, air entering by a conduit 14 surrounding the electrode.
Patent GB-221735-A (GB)
Title: Stands for electric lamps and the like
IPC: F21V21/08
Filed: 1924-03-05
Abstract: 221,735. Evert, J., and Knapper, G. March 5, 1924. Brackets, adjusting and securing. - An adjustable support for electric lamps comprises a standard 10 hinge-jointed at 11, 12, 13 and provided with a base comprising scissor - like clamping-arms 2, 3, the - arms being provided with rubber - covered gripping- pins 4. and adapted to be drawn together by a nut 9 on a screw 7 to enable the support to be secured in any position or inclination to articles of different width or shape.
Patent GB-332568-A (GB)
Title: Improvements in or relating to light metal structures
IPC: B64C3/00
Filed: 1929-02-21
Abstract: 332,568. Bristol Aeroplane Co., Ltd., and Pollard, H. J. Feb. 21, 1929. Planes, construction of; framework.-An aeroplane wing or other light metal structure comprises a number of girders each constituted by a pair of oppositely directed channelshaped looms braced together with their open sides outermost, and forming the main strength members of the structure, and a sheet metal covering secured to the booms and providing a closure for their open sides. The booms may be formed of flanged quadrantal members 10 riveted to plates 12 to which bracing members 13 are riveted, a sheet metal covering 16 being riveted to the outer flanges of the booms. The structure may be reinforced by channel section ribs 17, 18 at right angles to the booms, fixed on the inside and outside of the covering. Either of these ribs may be omitted or discontinued at certain points, the rib 18 being shown discontinued at the parts where the booms are secured. To keep the stress at different sections constant, the booms may be laminated by adding an extra. thickness to either or both of the quadrantal sections where necessary. According to the Provisional Specification a wing or other structure may be built upon seven girders having hollow tubular booms formed of flanged curved strips riveted together or interlocked and braced together by channel members and gusset plates as described in Specification 309,110. Extra thicknesses of metal are applied singly or in pairs where required. The curved strips may be formed as single arcs or corrugated. The ribs comprise upper and lower formers supporting a fabric covering.
Patent GB-982731-A (GB)
Title: Process for the production of electro-photographic plates
Inventor: WERNER WINIFRIED
IPC: G03G5/082
Filed: 1963-02-13
Abstract: Rastered electrophotographic plates are produced by coating a smooth carrier with a layer of photoconductive selenium in raster form so that the coating thickness fluctuates periodically. The coating is applied either by vapour deposition or by flame spraying in an inert atmosphere. A raster template is secured magnetically to the carrier and the selenium is vapour deposited through the template to give the required raster coating.
Patent GB-1086973-A (GB)
Title: Motor vehicle seating and loading surface arrangement
IPC: B60N2/20
Filed: 1966-02-10
Abstract: 1,086,973. Folding seats. DR. ING. h.c.F. PORSCHE KOMM.-GES. Feb. 10, 1966 [Feb. 11, 1965], No. 5847/66. Heading A4J. [Also in Division B7] A vehicle rear seat 2 comprises a back rest 4 in one or several parts pivotable about pins 7 held in fixed side support plates 8 so that the backrest may be moved to a dotted line position forming a load surface in extension of a rear load surface 6. The backrest has panels hinged to it and to the edge of the surface 6 which bridge the gap between the seat and surface when the seated is pivoted down, and in the figure shown panels 10, 11 and 12 hinged at 14, 15 and 16 are provided. Pivoted side levers 22 or levers 22 in co-operation with other levers 23 pivoted at 26 in the supports plates 8 support the pivoted down backrest from the vehicle floor, and a corrugated clip (19) connected to a housing (18) secured to a handle bar 17, Fig. 3 (not shown), engages over the hinge 15 to retain the panels and the backrest in the full line position. The panel 11 may be pushed down beyond its extended position to hold the panels and backrest in the load position and a U-shaped bow member 35 whose ends provide the pins 7 is provided within the backrest to support the panel 11.
Patent GB-973007-A (GB)
Title: Ribonucleosides of úË-heterocyclic 6-thiopurines
IPC: C07H19/16
Filed: 1962-02-15
Abstract: The invention comprises ribonucleosides of formula <FORM:0973007/C1/1> wherein X is a hydrogen atom or an amino-group, and Z is a chain of 3 or 4 atoms, one of which is carbon, nitrogen or sulphur and the remainder are carbon, completing on unreduced 5- or 6-membered heterocyclic ring in which nitrogen atoms may bear alkyl groups having 1 to 4 carbon atoms or aralkyl groups having 7 to 10 carbon atoms which may be aromatically substituted by nitro-groups, carbon atoms may bear halogen atoms or methyl, amino-, nitro- or hydroxy-groups, two adjacent carbon atoms may bear a fused benzene or imidazole ring, and one carbon atom adjacent to a nitrogen atom in the ring may bear a further 6-purinylthio- or 2-amino -6- purinylthio group, and their preparation by reaction of a compound of formula <FORM:0973007/C1/2> or its tri-O- acyl derivative, with a compound of formula <FORM:0973007/C1/3> in which formulae one of W and Y is a mercapto-group and the other is a chlorine, bromine or iodine atom, followed where necessary by the hydrolysis of O-acyl groups in the product.  The compounds of the invention have anti-tumour activity and may be used in pharmaceutical compositions in combination with an excipient in forms suitable for oral, parenteral or rectal administration, e.g. as tablets, capsules, cachets, ampoules, powder, granules, solutions, suspensions or suppositories.
Patent GB-108831-A (GB)
Title: A Method of and the Means for Fixing and Unfixing Metal Sleepers to and from Flanged Light Railway Rails.
Inventor: ASHMORE WILLIAM HENRY
IPC: E01B9/32
Filed: 1917-04-26
Abstract: 108,831. Ashmore, W. H. April 26, 1917. Sleepers, securing rails to.-Railway rails are secured to metal sleepers having a flat upper surface by means of clamps C, shaped as shewn, which engages in slots B in the sleeper. Platelayers' tools and appliances.-The clamps are fixed in position by striking the end F, and are removed by placing the appliance J in position as shown and pressing the handle L downwards.
Patent GB-1049951-A (GB)
Title: Thermostatically controlled steam trap
IPC: G05D23/08
Filed: 1964-02-13
Abstract: 1,049,951. Valves. KLEIN, SCHANZLIN & BECKER A.G. Feb. 13, 1964 [April 27, 1963], No. 6015/64. Heading F2V. [Also in Divisions F4 and G1] In a thermostatically controlled steam trap a valve is closed against the direction of flow of condensate by pairs of bimetallic plates 7, the plates of each pair curving in opposite directions and the convex side of at least one plate abutting the concave side of at least one curved spring plate 8. As the temperature rises the conical spring plate is flattened. Couples comprising a spring and bimetallic plate may be arranged in series or a number of spring plates of different sizes and shapes may be mounted with a bimetallic plate. Recesses may be provided at the edges of the spring and/or bimetallic plate, so that the plates only bear together by part of their edges.
Patent GB-845144-A (GB)
Title: Improvements in guided missiles and the like
Inventor: GALWAY THOMAS WALLACE REX
IPC: F42B15/34
Filed: 1958-02-25
Abstract: 845,144. Self-propelled missiles. SHORT BROS. & HARLAND Ltd. Feb 2, 1959 [Feb. 25, 1958], No. 6052/58. Class 9(2). [Also in Group XXXLII]. A missile as described in Specification 845,142 has a compartment 14 for housing electronic control apparatus in discrete component sections 18 surrounding an axial chamber 15 containing a battery 16. The chamber 15 has a cylindrical sheet metal wall 19 from which resilient tongues 191 are pressed out at circumferentially and axially spaced positions, the free ends of the tongues being within the cylinder and intermediate portions 1911 being bowed outwardly. Thus when the battery 16 is placed in the chamber 15, the tongues 191 force the sections 18 against the outer wall of the compartment 14, so that heat generated within the apparatus is dissipated through the skin of the missile. Alternatively, springs may be arranged in the battery compartment in such a way that, when the ends of the compartment are screwed into position, the springs are compressed and thrust the components 18 against the wall of the missile.
Patent GB-829343-A (GB)
Title: Improvements in and relating to flywheel magnetos
Inventor: GAYLER GEORGE ALFRED
IPC: H02K21/22
Filed: 1957-02-22
Abstract: 829,343. Cams. WIPAC DEVELOPMENT Ltd. Feb. 17, 1958 [Feb. 22, 1957], No. 6104/57. Class 80 (3). [Also in Groups XXVII, XXXV, XXXVI and XXXVII] The contact breaker cam 160 of an I.C.E. flywheel magneto is detachably mounted on a liner 15 secured within the flywheel hub, not shown, the cam being located by a lip 17 engaging a recess 18 in the liner.
Patent GB-848461-A (GB)
Title: A method and apparatus for continuous filtration of liquids
IPC: B01D33/00
Filed: 1957-02-25
Abstract: 848,461. Filters. WALLQUIST, I. Feb. 25, 1957, No. 6222/57. Class 46. An endless textile or wire cloth 4 in passing from a guide roll 6 to a guide roll 7 forms a plane portion sealed by rubber or like strips 11 to end walls 10a, b which together with a wall 10 and the plane portion of the cloth form a supply box 9 to which a suspension of filter aid (including fibres) is supplied at 12. The height to which the suspension rises is determined by the quantity and fineness of the filter aid. The liquid from the suspension is received in a trough 13 provided, at its edge adjacent the guide roll 6, with a scraper 14, and is discharged at 19. The cloth 4 with filter aid layer 16 passes around a conventional perforate drum 2, to the interior of which vacuum may be applied, rotating in a vat 1 to which liquid to be filtered is supplied at 15. A layer of residue 17 is formed on the layer 16, and the two are removed from the cloth 2 by a smooth roll 5 covered, e.g. by brass or rubber. The layers are removed from the roll 5 by a scraper 8 and discharged down an inclined plane 18. Specification 488,151 is referred to.
Patent GB-116312-A (GB)
Title: Eye-lid Elevator for Surgical Use.
Inventor: SHANKER PUNDIT HARI
IPC: A61B17/02
Filed: 1917-05-02
Abstract: 116,312. Shanker, P. H. May 2, 1917. Eye instruments.- Relates to an upper eyelid retractor for surgical use and consists in the provision of a double hook A, carried by a double arched member B borne by hinges G upon a frame F standing upon a base part E intended to rest upon the patient's forehead. The finger of the surgeon or his assistant is placed upon a lever-rest D carried by the pivoted crcssbar C of the double arched member, and thereby raises the hook, which has previously been inserted beneath the eyelid. The instrument is made of steel, nickel, silver, or other metal.