baber/WOPTO huggingface dataset:
Patent GB-558827-A (GB)
Title: Improvements in tobacco stemming machines
IPC: A24B5/06
Filed: 1942-08-28
Abstract: 558,827. Tobacco-stemming machines. AMERICAN TOBACCO CO. Aug. 28, 1942, No. 12166. Convention date, Oct. 18, 1941. [Class 130] Tobacco leaves L are fed by belts 4, 5 to a pair of endless belts or chains 19 provided with carding pins 21 arranged in close proximity to each other on an operative flight, the stems of the leaves being engaged and drawn from the leaves by a pair of coacting rolls 75 arranged at one side of the belts 19 with their axes parallel to the path of travel of the belts, the rolls being tapered at their inlet ends 85 and provided with coacting helical grooves 82 to grip the leaf stems. Radial pins 87 on the upper roll 75 guide the leaf stem transversely as the rolls withdraw it from the leaf. A similar pair of smaller rolls 76 may be arranged at the side of the belts 19 beyond the first pair, the rolls being journalled in bearings at each end and the bearings of each upper roll being yieldable. As shown, the belts 19 are each carried by a series of channel-shaped plates 14, Fig. 5, linked to form a chain, the members 17 of which travel on guideways 24 on base members 22, and are driven from a motor 30 through chain &c. gearing. The cylindrical portions of the rolls 75, 76 are formed of discs 79 of rubberized fabric and the rolls are driven through chain &c. gearing from a motor 93. Guide plates 45 at the outlet end strip the leaves from the pins 21 and deliver them to a discharge conveyer 46.
Patent GB-1284251-A (GB)
Title: A device for the measurement of torque
Inventor: STANDBRIDGE PETER JOHN
IPC: G01L3/10
Filed: 1970-03-13
Abstract: 1284251 Measuring torque electrically AUTOMOTIVE PRODUCTS CO Ltd 19 April 1971 [13 March 1970] 12179/70 Addition to 939175 Heading G1N A torque measuring arrangement, suitable for measuring the driving or braking torque on a vehicle wheel, comprises a ring 12 bolted to the driving-shaft and a coaxial ring 11 bolted to the wheel rim 27, the two rings being inter-connected by a number of equally angularly spaced bars 15, Fig.4, disposed parallel to and radially offset from the torque axis, these bars carrying gauges e. g. resistance strain gauges 52, which respond when the bars are deflected due to the application of torque. The ring 11 is provided with spokes 13 which carry a hub 14, and a housing 29 surrounds the hub and is separated therefrom by ball-bearings 31, the housing being held against rotation by a member 49. Leads from the strains gauges 52 are carried through grooves in the spokes 13 to a terminal strip 54 from which conductors lead through a tubular member 55 in the hub 14 to a slip ring assembly 56. Bushes 58 engaging the slip rings are connected to sockets 58 of multiple-pin connectors. The resistances are connected in a bridge circuit whose output feeds an indicator and/or a recorder. Temperature compensation is envisaged. The gauges may be inductive strain gauges or deflection transducers.
Patent GB-1249737-A (GB)
Title: Load-bearing mats for roadways, runways and the like
IPC: E01C9/08
Filed: 1969-03-07
Abstract: 1,249,737. Temporary roadways. HARVEY ALUMINUM (Inc). 7 March, 1969 [8 March, 1968], No. 12200/69. Heading E1G. [Also in Division B3] In a temporary road or runway formed by interconnecting a plurality of hollow rectangular extruded metal mats, preferably of aluminium, each mat comprises a body having deck and base plates 13, 8 integral with vertical or other parallel ribs 17 defining; channels 23 whose ends are reinforced by inserts 40 having integral end walls 53, complementary end connectors such as 63 being welded - preferably by electron beam welding - to opposite ends of the body. The body also has complementary side connectors 19, 21. As shown the inserts 40 comprise separate rectangular boxes having apertures such as 57 which communicate with one or more grooves 65 in the back of the connector 63 to facilitate the evacuation of air when placed in a vacuum chamber for electron beam welding. If desired the apertures may be omitted, resulting in a hollow mat having a partial vacuum. In a modification the separate connector 63 and inserts 40 are replaced by a one-piece connector 80, Fig. 15, formed with pairs of projections 83-85 for insertion in the channels 23. The rear face of the connector is grooved to receive the ribs 17, which have vents 88.  Reference has been directed by the Comptroller to Specification 1,004,439.
Patent GB-559867-A (GB)
Title: Improvements in the composition of shaving materials
IPC: C11D9/18
Filed: 1942-08-31
Abstract: 559,867. Shaving materials. WILLCOCKS. E. W. Aug. 31, 1942 No. 12223. [Class 91] [Also in Group VI] A shaving preparation comprises anhydrous sodium or magnesium sulphates, either separately or together, mixed with an inert or emollient material, e.g. kaolin, precipitated chalk and triethanolamine, with or without powdered soap. Examples are: (1) anhydrous sodium sulphate and kaolin mixed together in equal parts ; (2) anhydrous sodium sulphate, 10 parts, triethanolamine 1 part. and castor oil sufficient to make a paste : (3) anhydrous magnesium sulphate 1 part, precipitated chalk 2 parts, powdered gum acacia 1 part, and powdered soap 10 parts.
Patent GB-815115-A (GB)
Title: Flow measuring apparatus
IPC: G01F1/38
Filed: 1956-04-20
Abstract: 815,115. Measuring fluid flow. FOXBORO CO. April 20, 1956 [May 4, 1955], No. 12234/56. Class 69 (1). A fluid-flow meter for converting a pressure difference signal proportional to the square of the fluid velocity (e.g. a signal derived from an orifice plate in a conduit) into a signal proportional to the flow rate, comprises a pressure sensitive bellows 94 which exerts on bar 76 a force proportional to the pressure difference, and a bell-crank 46 pivoted at its angle to the surface of a turbine wheel 10 and carrying a flyball assembly 34. The turbine wheel has a sawtooth periphery and is driven by an air stream at such a speed that the centrifugal force on flyball 34 transmitted by a pin 72 seated in a jewelled bearing 70 on the axis of wheel 10 to bar 76 balances the force due to bellows 94; the speed of the wheel is then proportional to the rate of flow and may be indicated by a tachometer (not shown) and integrated by a gear train 144, 152, 154, a shaft extending the length of the instrument and a mechanical counter 166. The force balance of bar 76 is effected by use of a bolt 102 mounted on the end of the bar and the lower face of which is closely adjacent the mouth of a penumatic control nozzle 106; the air flow through the nozzle varies the pressure drop across a flow resistor 110 in series with it and hence the control pressure applied through passages 118 and 124 to a pneumatic relay 120 which may be of the type described in Specification 749,498, [Group XXVIII]. This relay provides an output air pressure, proportional to the pressure in passage 118, which is transmitted to the turbine-wheel driving nozzle so that the turbine speed is adjusted to maintain the force balance. Balance of the bar 76 at zero turbine speed/zero flow rate is effected by a spring 130, the force of which on bar 76 is adjusted by nut 135.
Patent GB-492772-A (GB)
Title: Improvements in or relating to strops for razor and other blades
IPC: B24D15/08
Filed: 1937-04-29
Abstract: 492,772. Strops. GEARY, C. T. April 29, 1937, No. 12245. [Class 60] A strop for razors &c. comprises a strip of leather or other flexible material 1 secured at 4 to the thicker end of a wedgeshaped block 2 of wood, vulcanite, or other material, the other end of the strip being spaced away from the thinner end of the block and attached to the bridge portion 10 of a wire spring member 5, the ends 8 of which are driven into the block. Instead of wire spring, coil springs or elastic rubber strands may be employed to tension the strip, and in place of the wedge-shaped block, a block with parallel faces may be used, the strip 1 being inclined to the flat faces of the block ; the undersurface of the block may be roughened or provided with rubber, leather, &c. projections. A recess 18 may be provided in the block for storage of a holder for safety razor blades constructed according to Specification 484,009. The strop may be attached yieldingly at both ends to the block. Reference has been directed by the Comptroller to Specifications 19573/95 and 3438/00, [both in Class 60].
Patent GB-1339036-A (GB)
Title: Aqueous dispersions of polymers of ethylenically unsaturated  monomers containing  a dispersing agent system of at least two  components
IPC: D21H19/60
Filed: 1971-04-30
Abstract: 1339036 Polymer dispersions BADISCHE ANILIN- & SODA-FABRIK AG 30 April 1971 [2 May 1970] 12360/71 Headings C3P and C3U Aqueous polymer dispersions are obtained by polymerizing one or more ethylenically unsaturated monomers in aqueous emulsion in the presence of a dispersing agent system comprising a mixture of (a) an alkali metal or ammonium salt of a C 12 -C 20  monoalkyl or monoalkenyl sulphate and (b) a polyhydric alcohol which is partially esterified with a C 12 -C 18  fatty acid. Examples illustrate the polymerization of (1) n-butyl acrylate, styrene, acrylonitrile, methacrylic acid and methacrylamide, (2) styrene, butadiene, methacrylamide and acrylic acid, (3) n-butyl acrylate, styrene, acrylic acid and methacrylamide, (4) n-butyl acrylate, vinyl acetate and acrylic acid, (5) styrene, n-butyl acrylate and acrylic acid, and (6) vinylidene chloride, methyl acrylate and acrylamide, using as dispersing agent a mixture of (a) C 16 -C 18  monoalkyl/alkenyl sulphates (sodium salt form) and (b) sorbitan mono-oleate, sorbitan monopalmitate, sorbitan monostearate, sorbitan mono-oleate or glycerol mono-/di-stearate. The polymer dispersions can be admixed with clay to form paper-coating compositions. The compositions may also include a natural binder such as casein or starch, e.g. 12 parts polymer plus 4 parts casein, or 3 parts polymer plus 11 parts starch, or 15 parts polymer alone per 100 parts by weight of clay.
Patent GB-727789-A (GB)
Title: Improvements in electro-deposition of chromium
Inventor: BLICKENSDERFER PHILIP STEMPEL
IPC: C25D5/34
Filed: 1952-06-23
Abstract: 727,789. Electrodeposition of chromium. CHAMPION PAPER & FIBRE CO. June 23, 1952, No. 12452/54. Divided out of 727,748. Drawings to Specification. Class 41. In depositing chromium on a body of iron, chromium, steel or steel alloys, the part of the surface to be coated is immersed in the plating solution and treated first anodically for a short time and then for a short time cathodically but with current density insufficient to deposit chromium, after which the cathodic treatment is continued with increased current density to produce the required deposit. According to a modification, the first two steps are carried out in an acid solution and the third step in a chromium plating solution, the second step being carried out at a lower current density than that required in the subsequent plating operation. The invention is described as applied in the method of closing openings in metallic surfaces claimed in Specification 727,748.
Patent GB-109269-A (GB)
Title: Improved Process for the Removal of Tarry Matter from Ammonium Salts.
Inventor: LEOPOLD SINGER
IPC: C01C1/24
Filed: 1917-08-31
Abstract: 109,269. Singer, L. July 24, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Ammonium sulphate.-Crude ammonium sulphate is purified from tarry matters by blowing air through the solution, slightly over-saturating with ammonia filtering, preferably downwardly through clear sand, China-clay, &c., and then crystallizing. The filtrate may be treated with steam to remove any remaining traces of tar.
Patent GB-916029-A (GB)
Title: Colour television apparatus
Inventor: RIDGEWAY DENIS VICTOR
IPC: H04N9/07
Filed: 1958-04-21
Abstract: 916,029. Colour television. PYE Ltd. April 21, 1959 [April 21, 1958], No. 12643/58. Class 39 (1). [Also in Group XL (b)] A light filter for a colour television tube comprising transparent imperforate and perforate sheets which are assembled together with light filter material applied over the surface of the perforate sheet is incorporated in the target structure of a pick-up tube. In Fig. 1, 61 is an imperforate glass disc bearing a signal plate 62 and 60 a perforate glass plate carrying a filter layer 63 and a second signal plate 64. The target area is covered with photo-conductive material. In an orthicon type target photo-emissive material is applied as a mosaic on insulating material interposed between the photo-emissive material and the opposing signal plate or the perforate plate may itself constitute the insulating layer between the photo-emissive layer and the signal plate. The perforations may be slots and the signal plate 62 may be composed of interconnected parallel strips. The target of a three-colour tube, Fig. 7, comprises an imperforate glass disc 161, a transparent conducting signal plate 162, a perforated glass plate 160, a minus blue filter 163, a further signal plate 164, a second perforated glass plate 260, whose perforations 266 are in register with but of larger area than the perforations 166 in the plate 160, a minus green or red filter 263 and a third signal plate 264. Photoconductive material 165 is deposited on the parts of plate 162 exposed through perforations 166, 266, on the parts of plate 164 exposed through perforations 266 and on the exposed surface of plate 264. In operation signals corresponding to a black and white image are obtained from original plate 162, to the red and green components from signal plate 164 and to the red component alone from plate 264. The " minus blue " or " red and green " component is phase inverted, Fig. 9, and mixed with the " black and white " signal to give a blue output, and the uninverted " minus blue " is mixed with the phase inverted red signal to give the green output signal. Specifications 888,832 and 888,839 are referred to.
Patent GB-1243930-A (GB)
Title: Improvements in or relating to the production of monocrystals
IPC: C30B15/10
Filed: 1970-03-17
Abstract: 1,243,930. Crystal pulling. SIEMENS A.G. 17 March, 1970 [18 March, 1969], No. 12654/ 70. Heading B1S. Monocrystals of compounds which decompose easily at their m.p., e.g. GaAs, are pulled from a melt 6 in a crucible 5 which is disposed in a bath of liquid 7 with the liquid level below the lip of the crucible. The seed crystal support 9 is affixed to and contained within an open-mouthed vessel 8, the lips of which are kept below the level of the liquid 7 whereby the crucible 5 is wholly enclosed. As the crystal 13 grows on the seed 12 the vessel 8 is raised and may also be rotated about its axis. The liquid 7 may be a melt of B 2 O 3 , Ga or CaCl 2 . Vessel 8 may be quartz and crucible 3 of Ir, Rh, Pt or graphite. Induction coil 4 is provided to heat this crucible. The system may be enclosed under vacuum or an atmosphere of A or N, inside tube 1.
Patent GB-1323657-A (GB)
Title: Process for the preparation of dinitrodiphenyl ethers
IPC: C07C/
Filed: 1972-03-17
Abstract: 1323657 Preparation of dinitrodiphenyl ethers RHONE-POULENC SA 17 March 1972 [19 March 1971] 12656/72 Heading C2C A process for the preparation of a mixture of 2,7<SP>1</SP>-dinitrodiphenyl ether and 4,4<SP>1</SP>-dinitrodiphenyl ether comprises reacting diphenyl ether with an aqueous solution of HNO 3  containing 50 to 75% by wt. of HNO 3  at a reaction temperature of 0‹ to 80‹ C. The above two dinitroisomers may be reduced to form the respective amino compounds.
Patent GB-1379874-A (GB)
Title: Process for the preparation of cyclopentenes
IPC: C07C57/26
Filed: 1973-03-16
Abstract: 1379874 Cyclopentene derivatives L GIVAUDAN & CIE SA 16 March 1973 [17 March 1972] 12665/73 Heading C2C [Also in Division A5] The invention comprises a process for preparing compounds of the formula where R<SP>1</SP> is H, OH, lower alkyl or lower alkoxy, R<SP>2</SP> is H, lower alkyl or lower alkylidene the broken line denotes an optional bond and the lower alkyl, alkoxy or alkylidene groups contain up to 6 carbon atoms by reacting 3 - isopropenyl - 1 - methyl - 2 - methylenecyclopentan-1-ol in the presence of an acid catalyst with a compound of the formula R<SP>5</SP>-CH = CR<SP>1</SP>-OR or where R is C 1-6  alkyl and R<SP>5</SP> is C 1-6  alkyl or C 2-6  alkenyl, and, if desired, catalytically hydrogenating the 3-isopropenyl group and/or oxidizing the aldehyde group to the carboxy group and optionally converting the carboxy group to a carboxylic acid alkyl ester. The invention further comprises compounds of the formula where R<SP>12</SP> is H, OH or C 1-6  alkoxy.
Patent GB-1244283-A (GB)
Title: Camera reflex mirror mechanism
Inventor: WIESSNER MANFRED
IPC: G03B19/12
Filed: 1969-03-11
Abstract: 1,244,283. Reflex cameras. KOMBINAT PENTACON DRESDEN, KAMERA-UND KINOWERKE. VEB. March 11, 1969, No. 12698/69. Heading G2A. A reflex camera has a mirror-returning gearing in which a spring 7 pivots a mirror into a picture taking position, is cocked by the film winding gearing and, during the pivoting movement, cocks a spring 23 acting directly on the mirror or mirror carrier for the return of the mirror into a viewing position, two mutually coupled levers being provided, one 4 to guide the mirror into the picture taking position, the other 3 to liberate the mirror return at the end of the exposure duration. The position shown corresponds to a picture viewing position, after operation of the film-winding gearing. After operation of the camera release, blocking lever 17 is actuated in the direction of the arrow to disengage itself from the nose 16 of the lever 4 which is thus free to pivot clockwise about spindle 2 under the action of spring 7. In so doing a nose 15 engages lever 21 of the mirror guiding gearing 22 to pivot the mirror into a picture taking position and also to stress torsion spring 23. Lever 4 comes to rest with its nose 16 against lever 3. At the end of the exposure, blocking lever 12 is actuated in the direction of the arrow by means of a shutter part. Lever 3 and the entrained lever 4 are thus free to rotate in an anti-clockwise direction under the action of spring 9. Movement of lever 3 back to its initial blocked position frees lever 21 so that the mirror is returned to its picture viewing position under action of spring 23. Rotation of lever 3 in the direction of the arrow by the film wind gearing restores the mechanism to the position shown. The mutually coupled levers 3, 4 preferably pivot about the mirror spindle 2. Movement of lever 4 allows lever 24 to move which actuates the lens diaphragm. In a second embodiment, Fig. 2 (not shown), the lever (29) guiding the mirror into the taking position pivots about the mirror spindle (28), whilst the lever 31 liberating the mirror to return to the viewing position pivots about a spindle (30) carried on lever (29).
Patent GB-1028530-A (GB)
Title: Polyamide compositions of improved temperature stability and methods of preparing them
IPC: C08K5/00
Filed: 1964-03-25
Abstract: A method of improving the temperature stability of a polyamide comprises incorporating therein from 0.01 to 5% by weight, based on the polyamide, of a metal phenolate or a metal salt of the condensation product of phenylene diamine with a phenol, a sulphonated phenol or an aromatic hydroxyketo-carboxylic acid. Specified metals are copper, zinc, manganese, chromium, tin, iron, cobalt, nickel, magnesium, aluminium and cadmium.  Reducing agents, e.g. alkali metal iodide or bromide, hydrazide or hydroxylamine may also be incorporated.  The additives are preferably added during the manufacture of the polyamides.  In the Examples: (1) and (2) e -caprolactam is polymerized in the presence of: (1) benzoic acid, and the cupric salt of the condensation product of 2 mol. of 2:21-dihydroxy dinaphthyl-(1,11) with 1 mol. of phenylene diamine; (2) m-phenylene diamine and the cupric salt of the condensation product of 2-hydroxy-5-methyl-benzophonone-carboxylic acid-(21) with m-phenylene diamine. In Example (3), hexamethylene diammonium adipate is polymerized in the presence of acetic acid and the nickel phenolate of the condensate of 2 mols. of 2:21-dihydroxy-diphonyl with m-phenylene diamine.
Patent GB-366818-A (GB)
Title: Improvements in and relating to methods of constructing flywheels, pulleys and the like
IPC: F16F15/30
Filed: 1931-04-30
Abstract: 366,818. Flywheels, pulleys, dynamo rotors, &c. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Soc. GÚnÚrale de Constructions Electriques et MÚcaniques Alsthom ; 146, Avenue des Champs Elysees, Paris.) April 30, 1931, No. 12770. Convention date, April 30, 1930. [Class 80 (i).] Flywheels, pulleys, drums, rotors of dynamoelectric machines, &c. are built up from one or more elements each of which consists of two axially-spaced sets of metal-plate sectors 1, Fig. 1, spaced circumferentially at the rim by curved pieces 2, such sets 9, 10, Fig. 3, being secured together, with intervening plates 11, 15, by bolts 12, 14, 18. The bolts 18 serve also for securing two such elements to a flange 17 on the hub 16. Circumferentially spaced plates 20 at the rim are secured between the two elements by bolts 19. Shrouding-plates 13 may be fitted on the rim, and the arms of the sectors may be strengthened by angle-plates 24. Polepieces 32, Fig. 5, of the rotor of a dynamoelectric machine are secured by bolts 35 to bolts 23 which secure together three elements each built up of two sets as in Fig. 3. The bolts 23 are weakened by grooves 36 so as to provide for errors of registration of the holes through which they pass.
Patent GB-315212-A (GB)
Title: Improvements in paint and varnish remover
IPC: C09D9/00
Filed: 1929-04-25
Abstract: 315,212. Du Pont de Nemours & Co., E. I., (Assignees of Verderosa, J. M.). July 9, 1928, [Convention date]. Paints and varnishes, removing.-A material for removing paints and varnishes comprises ethylene glycol, an aromatic solvent such as benzol or toluol, and acetone. A preferred composition consists of 50 per cent of acetone, 33 1/3 per cent of benzol and 16 2/3 per cent of ethylene glycol. The Specification as open to inspection under Sect. 91 (3) (a) describes also a paint-remover comprising ethylene glycol. An aromatic solvent such as benzol or toluol, with or without acetone may be added. This subject-matter does not appear in the Specification as accepted.
Patent GB-476150-A (GB)
Title: Improvements in and relating to conveying apparatus
IPC: C05B1/10
Filed: 1937-05-05
Abstract: 476,150. Endless chain conveyers. AKTIEBOLAGET KEMISKA PATENTER. May 5, 1937, No. 12892. Convention date, May 23, 1936. [Class 78 (i)] In an apparatus for the continuous conveyance of substances, e.g. superphosphate and the like, while undergoing solidification, of the kind comprising a chamber of which the bottom is formed by an endless conveyer composed of a plurality of connected strips, one edge 8, Fig. 4, of each iron strip 9 is curved downwards slightly and the other edge 10 is formed as an open trough. Each end of a strip is connected to a link 11 of an endless chain. The distance apart of the walls 5, 6, Fig. 3, of the chamber increases in the direction of travel of the conveyer. Copper sheet 7 is attached to the walls. British Specification 437,833, [Group III], and Swedish Specifications. 85,241 and 88,306 are referred to