baber/WOPTO huggingface dataset:
Patent GB-665112-A (GB)
Title: Improvements in or relating to regenerative heat exchangers
Inventor: STEVENS RAYMOND KENNETH PETER
IPC: F28D19/04
Filed: 1947-09-09
Abstract: 665,112. Thermal regenerators. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Aug. 20, 1948 [May 28, 1948], No. 14471/48. Divided out of the Complete Specification of 665,099. Class 64(i) In a rotary regenerator with a heat absorbing member 19, e.g. a disc or drum, rotatable in a casing partitioned into paths for the two heat-exchanging fluids by grooved dividing members 26 with movable sealing members which are slidable in the grooves and are in contact with the member 19, each sealing member is composed of two or more elements 60 each slidable in the groove 62 independently of the others and urged towards the member 19 by fluid pressure. In the form shown, high pressure fluid taking part in the heat exchange is bled through the duct 72 from the heat absorbing member 19 to provide the fluid pressure on the elements 60. Springs 70 provide additional pressure. Seals are provided between the elements 60 by tongues and grooves 63, 64 and by strips 65 in grooves. Spring-pressed strips 67 form seals between elements 60 and partition 26. According to the Provisional Specification the sealing elements may be spaced slightly from the heat absorbing members by rollers.
Patent GB-423749-A (GB)
Title: Improvements relating to brick manufacture and the like
IPC: B28B11/06
Filed: 1933-09-07
Abstract: 423,749. Moulding and sanding bricks &c. WORTHINGTON, W. G., Ivy House, Stanton Road, Ilkeston, Derbyshire, and STANTON IRONWORKS CO., Ltd., Stanton-by- Dale, near Nottingham. Sept. 7, 1933, No. 24834. [Class 87 (ii)] In the sanding of bricks, tiles, and the like with a layer of screened sand or other pulverulent material, the brick is applied to an extended sanded surface which is continuously re-charged by being moved cyclically with respect to sand-supply means. Usually the sand is deposited on a rotary table, endless-belt or like carrier, and the cut and moulded bricks issuing from the pug-mill are rolled over on the layer by hand to apply the sand to any or all of the surfaces. Fig. 1 shows a portable rotary-tableapparatus in which sand delivered to the hopper d is raised by an elevator c to a chamber from which it is delivered down the screen f which is pivoted at k and vibrated by the cam k<1>. The screened sand falls into a bottomless hopper h spaced above the rotary table e, the forward edge of the base of the hopper acting as a strickling-device in depositing an even layer of sand on the table, while the rear edge acts as a plough board for diverting the remaining sand after one complete revolution of the table to a hopper m for redelivery to the upper chamber. The unscreened sand falls into a box through a hole e<2> in the centre of the table and is collected for further treatment and re-use. All the mechanism is driven from a common motor n. After the bricks have been sanded in the manner described, they are submitted to a final pressing-operation before being burnt.
Patent GB-1522293-A (GB)
Title: Forming monocrystalline silicon carbide on a silicon body
IPC: C30B29/36
Filed: 1977-06-15
Abstract: 1522293 Silicon carbide INTERNATIONAL BUSINESS MACHINES CORP 15 June 1977 [30 June 1976] 25025/77 Heading C1A [Also in Division H1] A layer of monocrystalline silicon carbide is formed on a monocrystalline silicon body by converting a surface-adjacent portion of a monocrystalline silicon body into porous silicon by anodization (e.g. in aqueous HF), and heating the anodized body in an atmosphere that includes a hydrocarbon gas under conditions sufficient to react the porous silicon and the gas to form a region of monocrystalline silicon carbide immediately adjacent the monocrystallne silicon and a region of polycrystalline silicon carbide on the monocrystalline silicon carbide. Part or all of the polycrystalline layer may be removed by chemical, abrading, or sputter etching processes.
Patent GB-250281-A (GB)
Abstract: 250,281. Helps, G. Oct. 4, 1924. Atmospheric gas burners.-In a gas burner in which a disc valve 6 is adjusted simultaneously with the turning on or off of the gas, the stem 8 of the valve is engaged by a cam 7 carried by a tube 1 secured to the gas-cock 4, which carries the nipple. In other forms, the tube 1 terminates in a rounded end, which is provided with orifices and to which a cam spindle is secured, or the tube 1 is replaced by a plurality of wires, secured to the cam and to an annular disc on the cock 4, or the cock 4 carries a toothed wheel engaging a toothed wheel on the cam spindle, which passes through a guide member on the exterior of the mixing-tube, the stem 8 being extended below the burner-head 5 to receive the cam. When the burner comprises an angular burner tube 2<1>, Fig. 4, the cam 7<1> is provided with a spindle 18, carried by the tube 1<1>, and engages a pivoted lever 19, attached to the lower end of the stem 8, which projects through the burner-head 5 and is surrounded by a coiled spring. Specifications 142,222 and 162,641 are referred to in the Provisional Specification.
Patent GB-959814-A (GB)
Title: Egg shelf for refrigerators
IPC: F25D23/04
Filed: 1961-07-12
Abstract: 959,814. Egg racks for refrigeration doors. ATLAS A.S. July 12, 1961 [July 21, 1960], No. 25190/61. Heading A4B. [Also in Division F4] A rearwardly sloping egg shelf 1 mounted on a refrigerator door 5 and having recesses 3 for the eggs has cut-away portions 7 in front of and extending approximately half way into each recess 3. The width of the cut is preferably greater than half that of the recess and the shelf may be detachable.
Patent GB-929928-A (GB)
Title: Improvements in the control of means for winding sheet-like and tape-like materials
IPC: B65H23/06
Filed: 1961-07-12
Abstract: 929,928. Automatic loop tension control. ALLMANNA SVENSKA ELEKTRISKA A.B. July 12, 1961 [July 13, 1960], No. 25193/61. Class 38 (4). In an arrangement for winding or unwinding a tape at substantially constant tension a regulator responsive to the tension comprises a control resistor with a movable arm which operates at each end position limit switches and is characterized in that the parts of the control resistor situated nearest the end positions have a lower resistance than the intermediate part. As shown, the tension in a loop 5 in a moving web 2 is detected by movement of a swinging roller 6 rotating a moving arm 20 of a rheostat 19 varying the excitation current of a rotor 7 driving rollers 3. The rheostat has low-resistance end-portions 17, 18, each extending for about 15% of the total movement of the arm 20. At the limits of the travel of the arm 20 limit switches 15, 16 are operated. In Fig. 2, not shown, the arrangement of rheostat is applied to the reel winding arrangement as disclosed in Specification 881,279 which employs a Ward- Leonard generator.
Patent GB-1306967-A (GB)
Title: Analog-to-digital-converter
IPC: H03M1/00
Filed: 1970-05-26
Abstract: 1306967 Measuring resistance digitally SOC D'INSTRUMENTATION SCHLUMBERGER 26 May 1970 [28 May 1969 5 Dec 1969] 25197/70 Heading G1U [Also in Division G4] An analogue value representative of the value of a resistance 60 is obtained by means of operational amplifiers 11 and 58, and is used as the input to a dual ramp analogue to digital voltmeter (see Division G4). The value Vx, is given by the formula V x  = -R x .I.R 1 /R 2  where I is the current supplied to differential amplifier 58, R 1  is the value of resistor 64 and R 2  is the value of resistor 62, R x  is the volume of resistor 60, which is to be measured.
Patent GB-706581-A (GB)
Title: Improvements in drum separators
IPC: B03B5/42
Filed: 1951-10-29
Abstract: 706,581. Washing granular materials. WESTERN MACHINERY CO. Oct. 29, 1951 [Feb. 23, 1951], No. 25244/51. Class 82 (2) The sink lifters 11 of a rotary separator for sink and float separation are imperforate and inclined, over a substantial part of their length, in the direction of rotation of the drum 5, and a vertical baffle 15 extends longitudinally of the drum on ',each side of its axis. Material to be separated is fed into the drum at 17 and heavy medium at 18; floats discharge at 19 and sinks through the trough 20.
Patent GB-254571-A (GB)
Title: Improvements in or relating to exercising apparatus
IPC: A63B21/06
Filed: 1925-10-09
Abstract: 254,571. Pilates, J. Oct. 9, 1925. Apparatus for giving general or special exer. cises to the legs and body.-A patient is received o a carriage b in a recumbent position and moves the carriage against a resistance such as springs or a weight e by pressing with his feet on a support i, which may be vertically adjustable and shaped to correct flat-footness. Supports h, which may be adjustable, are provided for the head and shoulders. The carriage b may run on a table a or directly on the floor, in which case it may be folded up against a frame carrying the support i and secured to the wall.
Patent GB-1339510-A (GB)
Title: Photographic cameras
IPC: G03B9/70
Filed: 1971-04-19
Abstract: 1339510 Camera flash apparatus EASTMAN KODAK CO 19 April 1971 [27 March 1970] 25295/71 Heading G2A A photographic camera having a socket for receiving a percussion-ignitable flashlamp unit 14 and for locating a pre-energized striker 42 thereof in a firing position has a striker releasing member 152 carrying gear teeth 150 coupling with a gear 148 provided on a member 134 so that movement of member 134 to a position a where it is struck by a flash initiation member 182 causes the striker to be released. Operation of release member 102 causes a downward movement of member 118 only if a flash unit is mounted in the socket by virtue of the provision of bell-crank lever 122. If a flash unit is not present, release member 102 merely releases latch 194, 196 so that a shutter blade 172 is impacted by spring driven member 182. With a flash unit present, member 118 moves under the action of spring coupling 110 to rotate member 134 to a position a and which also moves striker releasing member 152 to position a at which position further movement is prevented by striker 42. Thereafter, spring driven member 182 will strike member 134 during its shutter operating movement and cause striker 42 to be released to initiate a flash exposure. If the flash unit is mounted but a striker is not present at a firing position, members 152 and 134 will continue their movement to position b and in so doing a flag 162 will be visible in the viewfinder to warn an operator of an unusable flash. Alternatively a lamp may be lit in the viewfinder. A single sliding plate shutter may be provided in place of the single pivoted blade shutter.
Patent GB-1396457-A (GB)
Title: Pressure vessels
IPC: F16J13/02
Filed: 1973-05-25
Abstract: 1396457 Pressure vessels NUOVO PIGNONE SpA 25 May 1973 [26 May 1972] 25305/73 Heading F2P A pressure vessel comprises a container 11 having a mouth provided with a first circumferential groove 14 in the internal surface thereof, a member 12 locatable in the mouth and having a circumferential second groove 13, which, when the member is correctly located in the mouth is opposite the first groove, a plurality of elements 15 movable from a first location wholly within the groove 14 to a second location (shown) partially within the groove 14 and partially within the groove 13 whereby with the elements in the first location the member 12 can be moved into and out of the mouth and in the second location the member 12 is secured in the mouth, movable means 16 for moving the elements 15 between their first and second locations and sealing means for effecting a seal between the container and the member when the latter is secured in the mouth. The sealing means comprises a ring seal 20 of trapezoidal shape located in a recess 21 in the container mouth and forced into said recess by a pressure ring 22 in screwed engagement with the member 12. The pressure ring 22 may be secured to the container 11 by suitable fixing means. A further seal is provided by 0-ring 19 located in groove 18 in the member 12. The means 16 for moving the elements 15 extend through holes 17 in the container body 11 so as to be accessible from outside the container and the holes 17 are sealed by screw plugs 25 and suitable packings 26.
Patent GB-205305-A (GB)
Title: Improvements relating to the construction of theatre chairs
IPC: A47C7/56
Filed: 1922-09-19
Abstract: 205,305. Sadler, A. G. Sept. 19, 1922. Seat backs. - In a theatre chair of the kind having a pivoted spring-pressed back 9, the spring 12 comprises a loop of wire, surrounding the pivot 11, and having its ends engaging the back and a fixed part 7 of the chair respectively. Stops 13, and a self-tilting seat 8 may be provided.
Patent GB-1117019-A (GB)
Title: The preparation of polydisperse polyvinylidene chloride latex
Inventor: SMITH DAVID RICHARD
IPC: C08F14/08
Filed: 1967-06-01
Abstract: A vinylidene chloride copolymer latex having a broad particle size distribution is prepared from a monomer composition containing 70-97% wt. of vinylidene chloride by initiating polymerization in aqueous emulsion and after the polymerization becomes exothermic adding particles of preformed additive polymer in latex form, having an average particle diameter less than that of the ultimate polymer, in an amount of at least 0.5% of the total weight of monomers.  The added polymer, which is preferably, but not necessarily the same in composition as the ultimate polymer, is preferably also present when polymerization is initiated and may have a particle size of 0.01-0.05 micron. Monomers, catalyst and emulsifying agent are preferably also added incrementally or continuously with the latex if desired.  In the examples, are polymerized (a) vinylidene chloride, methyl acrylate, acrylic acid and 1,3-butylene dimethacrylate with hydrogen peroxide and ascorbic acid and emulsified with a mixture of sodium dodecylbenzene sulphonate, sodium lauryl sulphate and disodium monodecylphenoxybenzene disulphonate, and (b) vinylidene chloride, methyl acrylate, acrylamide and acrylic acid with hydrogen peroxide and ascorbic acid emulsified with a mixture of anionic and non-ionic emulsifiers. Other comonomers, catalysts and emulsifiers are specified.
Patent GB-1093638-A (GB)
Title: Device with a heated treatment chamber for textile materials
IPC: D06B17/02
Filed: 1965-06-16
Abstract: In treating textile material in folded or packed condition in a chamber in the form of a J-box, the long leg only of the chamber is heated to reduce condensation in the therein.  In the arrangement shown a casing 3 surrounds the long leg I of a J-box and steam is introduced via pipe 8 into the casing 3 and flows up and around the leg I to enter the treating chamber immediately below feed device 5. The casing 3 may have two diametral openings for the short leg 2 of the J box, the opening not in use being closed with cover 18 and the casing 3 is mounted on pivots 11 and can be oscillated on the pivots 11 for folding the material 6 in the chamber.  To maintain the material in the heated part only of the chamber in the starting up stage an inset 14 is placed in the short leg 2 of the chamber and an extraction fan 15 is used to extract air from the chamber when commencing treatment. Condensate drip trays are provided beneath the inlet and a control device may be provided to maintain the height of the piled material at or within desired limits.  Such control device may be in the form of a differential gear connected to feeding and discharge rollers at the ends of the chamber and connected in an electrical rotary switch (Figs. 6, 7, not shown); a pivoted feeler operating an electric switch; a photo-electric cell mechanism or a pressure sensitive device.  An inspection window may also be provided for visual inspection of the height of the material in the chamber.
Patent GB-823258-A (GB)
Title: Process for splitting steroid racemates
IPC: C12P33/00
Filed: 1956-08-20
Abstract: Racemates of d,l-steroids containing at least one oxo group are split by subjecting the racemate to the action of an enzyme produced by the culture of a micro-organismnwhich reduces only the oxo group of the d-enantiomorph to a hydroxyl group, the l-form remaining unchanged, after which the reduced d-form and/or the l-form is isolated.  The process may be effected using several different micro-organisms in the one operation; specified organisms are fungi of the genera Saccharomyces, e.g. S. cerevisae, and Streptomyces, e.g. S. coelicolor and S. lavendulae, and certain bacteria, e.g. Bacterium putrificus.  The d,l-steroids may be saturated or unsaturated and of the cholestane, coprostane, cholane, spirostane, furostane, butanolide, cardanolide, testane and particularly the pregnane, androstane and estrane series, containing any of the usual substituents (halogen, hydroxyl, oxo, carboxyl and functional derivatives thereof) in the molecule.  Many starting materials are specified, and detailed examples illustrate the splitting of dl-17a -hydroxycortexone into d-D 4-3-keto-17a ,20b ,21-trihydroxy pregnene and l-hydroxycortexone, and of dl-oestrone into d-oestradiol and l-oestrone.
Patent GB-218964-A (GB)
Title: Improved gradient indicator for use on vehicles
IPC: G01C9/12
Filed: 1923-10-12
Abstract: 218,964. Braibant, N. July 11, 1923, [Convention date]. Addition to 204,316. Clinometers. - Gradient indicators for motor vehicles comprising a pendulum mounted to swing in a casing containing a liquid, are fitted with an adjustable sheet 7 of spring steel, whereby the passage for the liquid may be modified in accordance with the temperature, and therefore the viscosity, of the liquid. The adjustment of the sheet 7 is effected by a screw 10 extending through the wall of the container. To facilitate a prompt return of the pendulum 1 to the vertical position when an upward inclina. tion of the road is followed by a horizontal section or a downward inclination a second pendulum 2 is utilized. This pendulum 2 is carried on a shaft 11 attached to the wall of the apparatus and its oscillations are independent of that of the main pendulum 1. When the apparatus is moved from the inclined position, Fig. 3, to the horizontal a projecting portion 15 engages a stop 8 on the casing and during the movement a plate 9 attached to the pendulum 2 bears down on the pendulum 1 and acts to restore it to the vertical position. The pendulum 2 is limited to movement in one direction only by the stop 8.
Patent GB-759475-A (GB)
Title: Improvements in or relating to the production of sulphur-containing organic compounds
Inventor: MCLEAN ANDREW
IPC: C07C309/65
Filed: 1952-12-31
Abstract: Sulphur-containing organic compounds believed to be dithionous esters having the general formula R(R1)S2O4, where R and R1 are hydrocarbon groups, are prepared by reacting a hydrocarbon hydroperoxide with sulphur monochloride, preferably, in the presence of a hydrocarbon diluent at a temperature of from -50 DEG  to + 50 DEG  C.  The hydroperoxides may be the oxidates obtained by partial aerial oxidation of hydrocarbons or of the extract obtained by solvent extracting the oxidates with a polar solvent such as methanol; the reaction products of hydrogen peroxide with alcohols, e.g. naphthenic alcohols; or the hydroperoxides obtained by reacting Grignard reagents with oxygen and treating the products with water.  The dithionous esters are stated to be novel and those wherein the hydrocarbon groups contain 5 to 30 carbon atoms are useful extreme pressure additives for lubricating oils (see Group III).  In examples (1) a sulphuric acid washed kerosine B.R. 220-230 DEG  C. is air oxidized at 140 DEG  C., extracted with methanol and the extract, after removal of methanol, is reacted in benzene with sulphur mono-chloride at 5 DEG  C. and the product washed with aqueous sodium bicarbonate and freed of solvents by distillation under reduced pressure; (2) a n-cetane hydroperoxide concentrate obtained by air oxidation of cetane is converted to the di-cetyl dithionous ester as in (1); (3) di-1-methyl cyclohexanyl dithionous ester is likewise prepared from the hydroperoxide obtained by reacting 1-methyl-1-hydroxy cyclohexane with hydrogen peroxide.ALSO:Lubricating oil compositions comprise dithionous esters of the general formula R(R1) S2 O4, wherein R and R1 represent hydrocarbon radicals containing 5 to 30 carbon atoms (see Group IV(b), as extreme pressure additives.  In an example, dithionous esters wherein the Rs are cetyl or 1-methyl cyclohexyl groups or are the hydrocarbon radicals derived from a kerosine fraction B.R. 220 DEG -230 DEG C. are added in 10 per cent amounts to "Energol (Registered Trade Mark) 300" and the improvement in the loading property of the oil is demonstrated. The esters may also be used in gear, wire-drawing and hydraulic oils.
Patent GB-667304-A (GB)
Title: Improvements in and relating to grain harvesting apparatus
IPC: A01D61/00
Filed: 1949-10-05
Abstract: 667,304. Harvesting-machines. MASSEY-HARRIS CO., Ltd. Oct. 5, 1949 [Oct. 5, 1948], No. 25628/49. Class 6(iii) [Also in Group XXX] The auger trough 9 of a harvesting-machine has a cutter bar 11 secured to its forward edge, a grain outlet 14 in its rear wall 12, and an auger tube A rotatably mounted on its end walls, the augers, 18, 19 being adapted tc move the grain towards the centre of the trough where it is moved through the opening 14 to a grain elevator 70, 71. The tube is secured at one end to a driving shaft 24 fitted with a driving sprocket 26, and at its other enc is rotatably mounted on a shaft 27 which extends to a point near the adjacent end of the outlet 14 and by cranked arms 54 carries a shaft 55 extending across the width of the opening. Fingers 60 rotatably mounted on the shaft 55 extend through openings 65 in the centre section 15 of the tube A, and in use when the tube rotates and the augers deliver the grain towards the opening these fingers, which by their eccentric mounting with respect to the tube move in and out of the openings 65, deliver the grain to the elevator. An arm 30 secured to the shaft 27 can be angularly adjusted, as by bolt and slot device 31, 32 to vary the movements of the fingers. The tube itself may also be adjusted vertically by mounting its bearings 25, 28 in plates 33, and by mounting these plates by bolt and slot connections 35 and by vertical adjusting screws 42 on the end walls of the trough.
Patent GB-336722-A (GB)
Title: Improvements in burners for firing boilers, furnaces, and the like with gaseous fuel
IPC: F23D14/00
Filed: 1929-08-23
Abstract: 336,722. Weyman, J. E. Aug. 23, 1929. Atmospheric gas burners. - A burner for heating boilers, furnaces and the like comprises a body of rectangular crosssection divided by a partition E into chambers B, G fed respectively with gas and air under pressure from inlets A, H, the air passing through openings K, controlled by pivoted regulators L, to mix with the gas prior to combustion at the outlet C. The regulators L are provided with external operating levers N secured in adjusted positions by thumb-nuts P working in quadrants O. The outlet C is provided with a pivoted regulator R adjustable by means of a quadrant T and a thumb-nut V.