baber/WOPTO huggingface dataset:
Patent GB-1528418-A (GB)
Title: Determining monomer content in pmma elements
IPC: G01J3/44
Filed: 1976-06-11
Abstract: 1528418 Determining monomer in polymethylmethacrylate COMBINED OPTICAL INDUSTRIES Ltd 25 May 1977 [11 June 1976] 24371/76 Heading G1A Monomer (MMA) in an article of polymethylmethacrylate (PMMA) is determined by irradiating the article with mono chromatic light of a wavelength which gives rise to, in the Raman spectrum, a pair of lines, one corresponding to MMA alone and one corresponding to MMA + PMMA, determining the intensity of this pair of lines and determining the monomer content from the ratio thereof. Preferably the source is a laser tuned to one of 647À1, 514À5 or 488À0nm and the lines detected are 1640Œ10cm<SP>-1</SP> (MMA) and 1730Œ10cm<SP>-1</SP> (MMA + PMMA). The articles measured may be lens implants and the measuring circuitry may determine the monomer content and indicate either that or whether the MMA content is below a predetermined value.
Patent GB-931663-A (GB)
Title: Method of preparing liquid samples for dosing into gas chromatography columns
Inventor: BOTHE HANS-KARL
IPC: G01N30/12
Filed: 1961-07-05
Abstract: 931,663. Sampling liquids. DEUTSCHE AKADEMIE DER WISSENSCHAFTEN ZU BERLIN. July 5, 1961, No. 24379/61. Class 106 (5). A liquid sample for introduction into a gas chromatography column is produced by taking a sample of the liquid by means of a measuring valve, dipper or syringe, atomizing the sample in a closed chamber by means of a measured amount of the carrier gas or any other gas at a temperature which ensures complete evaporation, forcing part of the evaporated sample into a gas sampling valve by moving a wall, such as a piston, of the chamber and introducing the gas sample into a column, mixed with the carrier gas. The Specification also refers to a method, in which an evaporated liquid sample is divided into two streams, one of which, forming the final sample, is a small proportion of the other.
Patent GB-1182357-A (GB)
Title: Process for the Production of Acetic Acid
IPC: C07C51/23
Filed: 1967-05-25
Abstract: 1,182,357. Acetic acid. FARBENFABRIKEN BAYER A.G. 25 May, 1967 [1 June, 1966], No. 24379/67. Addition to 1,072,399. Heading C2C. Acetic acid is produced by reacting 1 mol of sec.-butyl acetate with at least 2 mols of oxygen or gases containing oxygen in the liquid phase at 150 to 250 C. and elevated pressure, the residual gas still containing excess oxygen and wherein the product is cooled to room temperature without pressure release. and after liquid components are separated the residual gas is heated by catalytic post-combustion to 150 to 600 C. before pressure release. The sec.-butyl acetate may be obtained by addition of acetic acid to n-butenes and acetic acid and an oxidation catalyst may be present in the reaction. Noble metals and cobalt, vanadium, copper, silver, manganese and chromium, supported for example on aluminium oxide, spinels or silica may be the catalysts.
Patent GB-367333-A (GB)
Title: Process for conferring a permanent shape upon knitted and woven fabrics of celluloseacetate silk
IPC: D06M13/188
Filed: 1930-08-14
Abstract: Cellulose acetate; treating textiles with liquids.--A permanent shape is conferred upon cellulose acetate knitted or woven fabrics by treating them with a swelling agent before or after the shaping operation, removing the swelling agent, and drying the goods in the shaped condition.  Specified swelling agents are formic, acetic, and propionic acids in such concentration as to exert a swelling action upon, without causing dissolution of, the cellulose acetate.  The following examples are specified: (1) Cellulose acetate silk stockings from a circular knitting machine are steeped in a 40 per cent aqueous solution of acetic acid, mounted on the shapes, washed, preferably first with dilute acetic acid and afterwards with water, to remove the acid, and dried on the shapes.  (2) To produce pleated goods cellulose acetate silk material is folded and wetted with a 35 per cent aqueous solution of formic acid and washed while still folded, preferably first with dilute formic acid and afterwards with water, to remove the acid.  (3) To obtain a moir<\>ae effect a cellulose acetate silk fabric wetted with dilute propionic acid is passed between calender rollers, each bearing two net-like profiles inclined at a small angle to each other, and is washed free from acid while under tension.
Patent GB-585197-A (GB)
Title: Chuck
IPC: B23B31/20
Filed: 1944-12-07
Abstract: 585,197. Chucks. ZAGAR TOOL, Inc. Dec. 7, 1944, No. 24526. Convention date, March 10. [Class 83 (iii)] In a collet type chuck, the collet is closed by a sliding sleeve operated by means connected to a second sleeve sliding on the outside of the body. An external yoke lever 34 moves a sleeve 26 axially, causing grooves 28 in the sleeve to engage levers 21 and rotate them about pivots 20. The pivots, mounted in a tubular body 4, have eccentrically formed pins 17 engaging an axially slid able bush 11, the outer end of which is tapered to bear against the tapered exterior portion of a collet 7. Rotation of the levers rotates the eccentric pins imparting an axial movement to the bushing 11. Turning.-An end-stop 39 for the work may be screwed into the body 4 at 40.
Patent GB-425045-A (GB)
Title: Improvements in or relating to the folding of edges of sheet material
IPC: A43D8/40
Filed: 1933-09-05
Abstract: 425,045. Folding edges of non-metallic sheet material. BRITISH UNITED SHOE MACHINERY CO., Ltd., REID, R. G., and REID, jun., R. G., Belgrave Road, Leicester. Sept. 5, 1933, Nos. 24557/33 and 13063/34. [Class 42 (i)] The cemented margins of sheet material are bent over but not allowed to touch the other part of the material by a plough 50, are pressed down by a spring-pulled shoe 38, and then firmly secured by the pressing and feeding rolls 16, 24. To facilitate the insertion of the work, the roll 24 is mounted in a frame pivoted at 28 and can be raised by a rod 36 and treadle, the shoe 38 can be lifted by means of a hand lever 44, and the plough 50 is pivoted so that it can be turned up as shown in Fig. 4 and can be slid to and from the shoe 38 on a rod 48. The parts of the plough are adjustable for different sizes of margins. The work may be fed by an endless belt 66 in addition to the rolls 16, 24.
Patent GB-1479522-A (GB)
Title: Conversion of coal into hydrocarbons
IPC: C10G1/06
Filed: 1975-01-20
Abstract: 1479522 Apparatus for converting coal into gas WESTINGHOUSE ELECTRIC CORP 20 Jan 1975 [29 Jan 1974] 24608/75 Divided out of 1479521 Heading C5E An apparatus for converting coal and water into at least one hydrocarbon, e.g. methane, comprises a nuclear reactor 21, preferably gascooled, which supplies heat energy via heat exchanger 23 to a first chemical reactor 25, which converts water into H 2  and O 2  and separates the H 2  from the O 2 , and a second chemical reactor 27 which reacts coal with the hydrogen from 25 to give the hydrocarbon(s). A third chemical reactor 29 converts char residue from 27 to CO using the O 2  from 25, which is then fed with the hydrocarbon stream to an acid gas remover 31 and a methanator 33 in which the CO is converted to CH 4  by the excess H 2  from the reactor 27. A drying unit 35 removes water from the methane stream and feeds it to 25. The nuclear reactor 21 preferably supplies all the energy requirements of the apparatus. A fourth chemical reactor converts CO from the third reactor and hydrogen from the first reactor to a second hydrocarbon.
Patent GB-226890-A (GB)
Title: Improvements in and relating to atmospheric steam generators for sterilising purposes
IPC: A61L2/07
Filed: 1923-10-03
Abstract: 226,890. Ferhins, F. A., and Perkins, J. E. S. Oct. 3, 1923. Disinfecting-chambers. - In an atmospheric boiler mounted in a fire-box and intended particularly for use in sterilizing dairy utensils. the capacity of the boiler below a draw-off tap, the size of the fire-box and the kind of fuel used are such as to allow the fire to be made up to the full capacity of the fire-box after the water has been drawn off down to the level of the draw-off tap. and the boiler left unattended until the fire is burnt out without all the remaining water being evaporated. A cylindrical boiler 1 supplying steam to a sterilizing chamber 14 is mounted on a fire-box 7 fitted with a baffle directing the hot gases through a jacket 8 around the lower part of the boiler before they escape to the chimney 6. Water is supplied through an external or internal pipe 10 extending slightly above the top of the boiler. The hot water above the drawoff tap 12 may be used for washing purposes. Articles to be sterilized may be placed in a perforated cage or on a shelf supported on brackets 18 inside the boiler. The cover 2 is secured by a bridge-piece 4 with a central screw 3.
Patent GB-518765-A (GB)
Title: Improvements in and connected with electrical interlocking switch sockets
IPC: H01R13/707
Filed: 1938-08-23
Abstract: 518,765. Two-part couplings combined with switches. CRABTREE & CO., Ltd., J. A., McLOUGHLIN, H. F., and HARRISON B. G. Aug. 23, 1938, No. 24739. [Class 38 (i)] A switch-socket in which the socket contacts are mounted in a pivoted block a which is rocked by pressure on the plug member about a pivot b at right angles to the axes of the sockets to close the contacts e, f, as described in Specification 518,764, is provided with means for preventing closure of the switch while the plug is not engaged, and with means for preventing withdrawal of the plug while the switch is closed. A catch m pivoted at i is pressed by a spring j into engagement with the earthing socket l so preventing the switch-closing movement of the block a until the catch m is depressed by the earthing pin. When the switch is closed a cam-plate n is turned on its pivot q by a spring r assisted by an arm s engaging a slot t in a fixed plate g so that the nose n<1> of the cam grips the earthing pin. The cam plate may be laminated and the pivot q bent to follow the contour of the earthing pin.
Patent GB-1517626-A (GB)
Title: Method for forming the race of a slide bearing
IPC: F16C27/02
Filed: 1976-06-15
Abstract: 1517626 Bearings HOUDSTERMAATSCHAPPIJ ALEX A LOGGERS BV 15 June 1976 [20 June 1975] 24761/76 Heading F2A A bearing surface of a slide bearing is formed by introducing into a housing an element having at least one elastomeric portion and then compressing the element, by means of at least one pre-compression ring bearing on elastomeric projections on the element, in the axial direction of the bearing so that a radial clearance between element and housing is filled by expansion of the elastomeric portion in a radial direction and/or a direction tangential thereto. In Fig. 2, element 15 comprises non-deformable core 16 forming bearing surface 17 and rubber portion 19 having projections 20, 21. Pre-compression ring 23 is tightened so as to expand the rubber to fill clearance 5 and provide a tight fit between element 16 and housing 22. In Fig. 3, an element including the bearing surface consists of a number of segments 25 abutting to form a circle around a shaft. Each segment consists of a rigid core 26 from which bearing surface 27 is formed, and rubber portions 28, 29 which may be expanded by application of axial pressure from a precompressing ring (not shown).
Patent GB-658466-A (GB)
Title: Improvements in or relating to sliders for sliding clasp fasteners
IPC: A44B19/30
Filed: 1949-09-27
Abstract: 658,466. Sliding-clasp fasteners. LIGHTNING FASTENERS, Ltd. (Lightning Fastener Co., Ltd.). Sept. 27, 1949, No. 24767. [Class 44] A locking slider for a sliding-clasp fastener, shown in section in Fig. 2, has a locking member 32 held by spring arms 34, 35 in an inclined normal position (as shown) from which it is moved to a fully locked position by movement of the slider in the-un-fastening direction, or to an unlocking position by pressure of the pull tag 28 tending to move the slider in the unfastening direction. Secured to the upper plate 22 of the slider is a bail 30 retaining the spring, the arms 34, 35 of which engage in grooves in the bail and the upper surface of the slider. The locking member 32 is of plate form and has side shoulders 38 and a head portion 36 received in a bore 37, Fig. 9, in the bail. The spring arms project into a slot 46 in the locking member and engage sloping end faces 50, 52 thereof so that through their outward bias they tend to return the locking member to the inclined position of Fig. 2. In this position the nose 33 of the locking member projects slightly into the element channel 20 so that relative movement of the elements 16 to the left (the unfastening direction) rotates the locking member about the point of contact of its shoulders 38 with the undersurface 60 of the bail into the locking position shown in Fig. 3 where the locking member is substantially perpendicular to the plane of the slider and the spring arms are deflected towards each other. Relative movement in the other direction causes the locking member to ratchet lightly over the elements, being cammed upwardly by their contact against the sloping surface 62. Movement of the slider in the unfastening direction by means of the pull-tag rotates the locking member about the point of contact 64 with the wall of the opening 31 to the released position shown in Fig. 6. When the pull-tag is released the locking member is automatically returned to the normal position of Fig. 2.
Patent GB-537463-A (GB)
Title: Improvements in or relating to resilient couplings
IPC: F16F1/50
Filed: 1939-08-29
Abstract: 537,463. Resilient couplings. SCHIEFERSTEIN, G. H. Aug. 29, 1939, No. 24835. Convention date, Sept. 15, 1938. [Class 108 (iii)] A resilient coupling for use with resonance oscillating machines and suspension systems comprises one or more rubber &c. blocks the end faces of which are dovetailed into, and adhesively secured to, socket-plates connected to the mechanism or system. The sockets may be lined with hard rubber, and may be provided with additional anchoring-means such as pins. As shown in Fig. 1, a pair of rubber blocks c which receive shear stresses from a reciprocating eccentric-rod a are dovetailed into sockets d recessed into the rod a and the frame member g. Metal lamellae e may be welded to the bases of the sockets. Fig. 10 shows a plan of an oscillating structure in which the cushioning device for the mass M comprises relatively-light resilient members C transmitting the direct reciprocations of the eccentric rod, and sets of heavier resilient members S. Fig. 11 shows a modification in which the resilient member C is subjected to compression and tensile stresses between the mass M and the eccentric-rod a.
Patent GB-1435013-A (GB)
Title: Harvesting apparatus
IPC: A01D46/28
Filed: 1973-05-24
Abstract: 1435013 Vibratory fruit harvester LINCOLN COLLEGE 24 May 1973 24874/73 Heading A1F [Also in Division F2]  A harvester which shakes fruit etc from plants which it straddles comprises two vibratory heads 41, 42, Figs. 5A, 5C respectively which, in one embodiment impart both a relatively high speed torsional vibration (derived from a high speed motor) and a relatively slow speed positive rotation (derived from the harvester main drive motor) to their associated output shafts, e.g. 69b, Fig. 5C, which are coupled to respective tine bearing shafts. The combined rotational forces vibrate the tines to shake the fruit. The drive from the motors is transmitted to the vibratory heads via a gear mechanism Fig. 5B. In a modification the positive rotational drive is imparted to the tines and hence to the vibratory head output shafts by. the plants themeslves. Transmission of the drives to the vibratory heads In the first embodiment the main, slower drive is transmitted via belts 44, Fig. 5B, to pulley 47 and thence (a) directly via chain 58a to vibratory head sprocket wheel 61a, Fig. 5A and (by via an internal sleeve (not shown) to meshing gears 45a, b and integral sleeve 55b to integral sprocket wheel 57b and thence via a chain (not shown) to vibratory head sprocket, wheel 61b, Fig. 5C. Both sprockets 61a, b impart the positive rotation to their respective associated output shaft, e.g. 69b; to which the tine shafts are coupled, Figs. 1-4 (not shown). The high speed drive is transmitted via belts 45 through keyed pulleys 48, 51b and thence (a) directly via a chain (not shown) to vibratory head pulley 76b, Fig. 5C, and (b) via keyed shaft 49b, meshing gears 46b, a, shaft 49a, keyed pulley 51a and chain 80a to vibratory head pulley 76a, Fig. 5A. Vibratory head mechanism operation The operation of both vibratory heads is identical. In Fig. 5C pulley 76b transmits its rotation to keyed eccentric bore 87b and keyed shaft 73b having eccentric 74b which engages with vibrator 81b. The vibrator 81b slots over cranked shaft 72b and fixed, but orbiting pin 68b. The vibrations generated are transmitted to output shaft 69b. Positive rotation from sprocket 62b causes rotation of the vibrator 81b via the orbiting of pin 68b attached to housing 63b. The amplitude of the torsional rotation may be varied.
Patent GB-226898-A (GB)
Title: Improvements in or relating to boots and shoes
IPC: A43B7/12
Filed: 1923-10-08
Abstract: 226,898. Boxall, A. H. Oct. 8, 1923. Connecting uppers to insoles and soles.- Boots provided with a metal waterproofing plate between the scles are characterized by an under sole c wood-pegged at d to an upper a and insole b, an aluminium or like plate e, and an outer sole f secured by machine screws h passing through all the layers. The metal plate e is secured by rivets or screws, not shown, at the toe and heel to the sole c.
Patent GB-1415953-A (GB)
Title: Rubber articles reinforced with high modulus fibre cords pneumatic tyres reinforced with such fibre cords and a method for producing the same
IPC: B60C9/00
Filed: 1973-05-25
Abstract: 1415953 Coated cords BRIDGESTONE TIRE KK 25 May 1973 [1 June 1972] 25089/73 Heading B2E [Also in Divisions B7 and C3] A rubber article is reinforced with high modulus fibre cords having a Young's modulus of not less than 4.0 Î 10<SP>5</SP> Kg/cm<SP>2</SP> in which at least end surfaces of said fibre cords are covered with a rubber containing a synthetic polyisoprene having not less than 90% by weight of cis-1, 4-isoprene unit, the amount of the synthetic polyisoprene being not less than 20% by weight of the total rubber of the covering. The cord may be a metal fibre or a glass fibre cord. The rubber containing the synthetic polyisoprene may form a layer only over the end surface of each cord or may also extend along the axial surface of the cord. The layer may be in direct contact with the surface of the cord as shown in Figures 1(1), (2) and (3) or another rubber may form a layer in contact with the surface of the cord with the synthetic polyisoprene rubber layer over this layer as shown in Figure 1(4). The synthetic polisoprene may be blended with natural rubber, styrene-butadiene copolymer rubber, and cispolybutadiene rubber or mixtures of these rubbers. The rubber article may be a tyre in which any one of breaker, carcass and chaffer consists of the high modulus fibre cords. End separation of the fibre cords in the rubber is thereby prevented.
Patent GB-840728-A (GB)
Title: Improvements in tubulous vapour generating and vapour heating units and a method of operation thereof
IPC: F22B31/04
Filed: 1956-08-16
Abstract: 840,728. Controlling steam temperature in boilers. BABCOCK & WILCOX Ltd. Aug. 16, 1956 [Aug. 16, 1955], No. 25108/56. Classes 123(2) and 123(3)  A water-tube boiler comprises two radiation chambers 12, 14 from which gases pass upwardly through parallel passes 16, 18, the chambers and passes being separated by a tube wall 10. The chambers 12, 14 are respectively supplied with hot gases from cyclone furnaces 20, 22, for example of the type described in Specification 598,141, the furnaces firing into secondary furnaces 42, 24 from which the gases discharge into the radiation chambers 12, 14 respectively through screens 86, 84. The chambers 12, 14 and the passes 16, 18 are lined with steam generating tubes which, with the tubes of the wall 10 and of the secondary furnace walls 50, 52, extend between headers 60, 70, 80 and 68, 76, 110, the latter being connected to a steam and water drum (not shown). The pass 16 locates an economizer section 124, a primary superheater 136 and a section 148 of secondary superheater whilst in the pass 18 are disposed other economizer sections 128, 130, a reheater 160 and the other section 152 of the secondary superheater. An attemperator 142, preferably of the spray type described in Specification 656,551, is inserted in the line between the superheaters 136, 148. The unit includes a gas recirculation system for regulation of the superheat and reheat temperatures, cooled flue gases being withdrawn through openings 26, 28 at the tops of passes 16, 18 by a fan 32 which delivers them through ducts 36, 46 controlled by dampers 202, 200 to wind boxes 34, 44 provided with openings into the secondary furnaces 24, 42 distributed across the entire width thereof and also through ducts 224, 226 controlled by dampers 220, 222 to windboxes 228, 230 located within noses projecting from the division wall 10 into the chambers 12, 14 respectively, the noses having openings 96, 104 distributed across the width of the chambers through which the flue gas is injected into a region adjacent the inlets to the respective passes 16, 18. In the operation of the unit, as the rate of steam generation decreases, the dampers 200, 202 are automatically or manually adjusted according to changes in load or superheat temperature to increase the flow of flue gas into the furnaces 42, 24 and thereby to maintain the superheat temperature at the required value and the dampers 220, 222 are simultaneously adjusted to proportion the flow of recirculated gas as tempering gas between the passes 16, 18 to maintain the reheat temperature at the required value. The latter control may be supplemented in the lower load range by adjustment of dampers 204, 210 at the outlets of the passes. At and near full load these dampers are kept wide open thus reducing draught loss in the unit whilst superheat and reheat temperatures are regulated by the gas recirculation system.
Patent GB-507656-A (GB)
Title: Hydraulic cut-off for continuous furnaces at a controlled atmosphere
IPC: C21D1/74
Filed: 1937-09-15
Abstract: 507,656. Furnace seals. SCHAEFER, H. Sept. 15, 1937, No. 25113. Void. Convention date, Sept. 17, 1936. [Class 51 (ii)] Admission of air to and escape of protective gas from a continuously-operated muffle 2 is prevented by a liquid curtain. The apparatus shown comprises fixed and verticallyadjustable tanks 5, 7 below and above the charge conveyer 1 respectively, the tank 7 having openings 9 through which the liquid flows to form sealing-curtains. A pump withdraws liquid from the tank 5 and returns it to the upper tank 7, and make-up liquid can be supplied at 12. A constant level is maintained in the tanks by overflows, and surplus liquid from the upper tank provides a seal at 13 between the fixed and movable parts.
Patent GB-264209-A (GB)
Title: Improvements in wireless transmission
IPC: H04H7/00
Filed: 1925-10-08
Abstract: 264,209. Kubierschky, M. Oct. 8, 1925. Transmitting and calling systems and apparatus.-To enable listeners to tune in a broadcasting station at any time during service hours, a continuous programme is maintained by automatically introducing a signal or talking machine whenever there is a gap in the normal programme or the announcer is not speaking. The machine may emit a specific note or may repeat the name and wave-length of the broadcasting station; and may be brought into use before the normal programme begins. The automatic control of the signal or talking machine may be effected by a relay responsive to the presence or absence of voice currents in its input circuit. Known relay devices are used to prevent the relay from functioning during short pauses in a programme item. The system may be used at relay stations without an announcer.