baber/WOPTO huggingface dataset:
Patent GB-931456-A (GB)
Title: Friction element for disc brake
IPC: F16D65/092
Filed: 1960-12-09
Abstract: 931,456. Disc brakes. D.B.A. S.A. Dec. 9, 1960 [Dec. 11, 1959], No. 42545/60. Class 103(1). A friction pad for a fluid pressure-operated spot-type disc brake has a sheet metal backing plate formed to anchor the pad by abutment against portion of the mechanism and has means for detachably securing the pad to an element of the applying mechanism. A rotatable disc 2 is straddled by yoke members 8, 9 spaced by a brake cylinder 14 and a brace member 12. A U-shaped supporting plate 4 is axially free between the yokes 8, 9 and is restrained from circumferential rattling by spring strips 60, 62 clipped to the plate 4. The friction linings are bonded or riveted to sheet steel backing plates flanged at their edges and having terminal fingers 40 which engage slots 42, 52 in the plate 4 to anchor the friction pads against braking thrust. The movable pad 28 has fingers 70 and a button 76; formed from its surface, to engage a spring clip 74 which connects the pad to an extension 24 of the brake piston 20. The fixed pad 38 is formed with two pairs of tongues 86, 88 to receive resilient fasteners 90, 92 having rectangular openings through which passes the brace member 12. The friction lining of the movable pad is offset with respect to the centre of thrust of the piston 20, and the lining of the fixed pad is divided at the centre to promote even wear.- Replacement of the two pads in facilitated by removal of the yoke member 8 and circumferential withdrawal of the pads. New pads may be fitted by similar movement, the movable pad spring clip 74 engaging a flat 72 on the extension 24 to ensure the correct angular location of the piston 20 necessitated by the automatic adjusting means 54 of the type described in Specification 931,455.
Patent GB-1012148-A (GB)
Title: Improvements in or relating to heating apparatus
IPC: F23C99/00
Filed: 1961-11-29
Abstract: 1,012,148. Surface combustion heaters. GENERAL PRECISION Inc. Nov. 29, 1961 [Nov. 29, 1960], No. 42619/61. Heading F4B. The body 19 of a surface combustion burner is cooled by directing the combustion products away from the radiant elements so as to draw cooling air over the surface of the body. The radiant elements 39 are supported on the body 19, Fig. 5, below a screen 41 having a peripheral flange 42 to facilitate the even distribution of a combustible gas and air mixture from the passage 35. A protective screen 57 is mounted below the radiant elements 39. The burner body 19 is mounted in a housing 11 which has an inlet 16 extending the full width and a flue outlet 21. The burner body 19 is supported by a housing part 18 which has apertured double walls 24, 25 at the outlet side of the housing. Gaseous combustion products from the radiant elements pass through the apertures in the walls 24, 25 to a nozzle 26 formed within the housing, and thence to the flue outlet 21. Air is drawn in to inlet 16 and sweeps over the burner body 19 which has fins 56 on its top wall. Air for combustion is drawn into the burner through its inlet 36 by the action of the gas nozzle 43. Dampers may be arranged at the mouth of inlet 36.
Patent GB-1424607-A (GB)
Title: Rendering surfaces hydrophobic
IPC: E04B1/66
Filed: 1973-09-11
Abstract: 1424607 Propyl siliconate water-proofing compositions WACKER-CHEMIE GmbH 11 Sept 1973 [19 Sept 1972] 42679/73 Heading C3T [Also in Divisions D1-D2] In an at least partially aqueous solution of one or more alkali metal hydrocarbon siliconates, at least 10% by weight of the siliconate(s) consists of one or more alkali metal propyl siliconates. Preferably the propyl siliconates account for at least 50% by weight and may be 100% by weight of the siliconates, the remainder if any comprising alkali metal methyl and/or ethyl siliconates. The propyl siliconate may be monomeric of formula C 3 H 7 Si(OH) 2 OM, or polymeric having units -(C 3 H 7 )Si(OM)-O- wherein M denotes an alkali metal atom. The solution may contain up to 100% by weight, based on the water, of a water-miscible organic solvent such as an alcohol or ketone. The concentration of the siliconate(s), calculated as RSiO 3/2  wherein R denotes the hydrocarbon radical, may be from 0.02 to 10%, preferably 0À5 to 5 % by weight.
Patent GB-1291431-A (GB)
Title: Improvements relating to hydraulic control valves
Inventor: RODGER BERNARD
IPC: F16K31/12
Filed: 1968-09-07
Abstract: 1291431 Valves EMI Ltd 8 Sept 1969 [7 Sept 1968] 42684/68 Heading F2V An hydraulic valve includes a spring-loaded poppet 16 co-operating with a valve seat which is interposed between an hydraulic inlet 2 and an hydraulic outlet 3, a chamber connected to an air supply (via bore 25) and a plunger 23 associated with the chamber so that air pressure acts to force the plunger to close the valve 16, the arrangement being such that after the closure, hydraulic pressure maintains the valve 16 in its seated position. With the valve 16 closed, hydraulic fluid flows from an inlet 2 to an outlet in the face 5 of the block 1 and returns to an inlet in the block 1 at the face 5 to the outlet 3. A bore 9 leads from the forward feed bores 2 to a chamber 8, and a bore 11 leads from a bore 10 to outlet 3. The air may be controlled by a solenoid operated valve. Furthermore a by-pass may be provided between the bores 2 and 3 so as to provide a buffer valve.
Patent GB-1522336-A (GB)
Title: Universal sheet feeder and stacker
IPC: B65H3/48
Filed: 1975-10-17
Abstract: 1522336 Separating and stacking sheets XEROX CORP 17 Oct 1975 [19 Dec 1974] 42687/75 Heading B8R A device for separating or stacking sheets comprises a perforated pile supporting plate 6, means for directing air from plenum 4 through the plate to form an air cushion between plate and pile and a transport roller 22 having vacuum shoes 28, 29 to separate the sheets. Air from further plenum chamber 15 supports the lower edges of the pile. Belt 16 may urge the pile towards the plate 6. A pressure roll 32 cooperates with roller 22 to assist in forwarding of the sheets. The roller 22 may be replaced by an endless belt overlying a vacuum shoe. To stack sheets the direction of rotation of roller 22 (or the suction belt) is reversed.
Patent GB-1217287-A (GB)
Title: Hydraulic control system for a vehicle steering system.
IPC: B62D5/09
Filed: 1969-08-27
Abstract: 1,217,287. Vehicle power steering. TYRONE HYDRAULICS Inc. 27 Aug., 1969 [13 May, 1969], No. 42688/69. Heading B7H. An hydraulic control system for the steering system of a vehicle comprises two engine-driven pumps 49, 59 delivering liquid through a control valve 63 to the steering system of the vehicle, the rate of delivery of the liquid from the pumps being in proportion to the speed of the engine and the control valve 63 being influenced by the fluid pressure from the first pump 49 such that below a certain engine speed the liquid flow from both pumps is delivered to the steering system and above a certain engine speed the liquid flow from only the first pump is delivered to the steering system. For this purpose, a restriction 65 is placed in the line from the first pump 49 and a connection 85, 87 is made before and after the restriction with each end of the control valve 63. The spool 67 of the control  valve is urged by a spring 83 into a position which permits the liquid flow from both pumps to be delivered to the control valve 37 of the steering system. At low engine speeds the pressure differential before and after the restriction 65 does not affect the valve 63 but at high speeds the effect of the pressure differential is such as to cause the spool 67 to move against the spring 83 and to permit the flow from the first pump 49 only to be delivered to the control valve 37 of the steering system, the liquid flow from the second pump 59 being returned to the reservoir 44. The steering system may include steering rams 25, 27 coupled to the wheels of the vehicle and influenced by control valve 37 operated by a steering wheel 39 as shown in Fig. 1 or alternatively the rams may operate the rear traction unit of an articulated vehicle to steer the vehicle, Fig. 4 (not shown).
Patent GB-1384750-A (GB)
Title: Capacitor discharge ignition systems
IPC: F02P3/08
Filed: 1972-09-15
Abstract: 1384750 Ignition systems NIPPON DENSO CO Ltd 15 Sept 1972 [17 Sept 1971 21 Sept 1971 3 July 1972] 42928/72 Heading F1B A capacitor discharge ignition system employs a D.C. to D.C. converter 2 to charge a capacitor 5 and the capacitor is discharged through the primary winding 6a of a first ignition coil 6 under control of a controlled rectifier 4. The system includes a spark duration extending ignition coil 7 having a greater number of secondary turns 7b than the first ignition coil, the high voltages generated in the secondary windings of the ignition coils being combined to produce a resultant high voltage at an output terminal P of the system. As shown the secondary windings of the two ignition coils are connected in parallel but they may be arranged in series. The spark duration extending igniton coil may be associated with a further condenser (not shown) which is discharged through its primary winding 7a by the controlled rectifier. The system may include a switching circuit to avoid loading the breaker points with the full current in the primary winding of the spark duration extending ignition coil. The ignition coils may be in a single case but magnetically separated from one another.
Patent GB-1339934-A (GB)
Title: Hydraulic press
IPC: B30B1/32
Filed: 1971-09-16
Abstract: 1339934 Hydraulic press AMACKER & SCHMID AG 16 Sept 1971 [2 Dec 1970] 43126/71 Heading B5F An hydraulic press for use in glueing workpieces and stamping operations comprises a first pressing unit 5, 6, 9 for carrying out the approach stroke of a platen 3 under high speed and low power and a second pressing unit 12, 13, 14 for carrying out the pressing stroke under low speed and high power. The first unit comprises a cylinder 5 and a piston 6 formed by the upper end of a ram 4 and having a small effective surface area compared to that of a diaphragm 12 of the second unit. As shown, during a work cycle, pressure fluid is fed from a pump 23 into chamber 9 of the first unit via a valve 10 to force the ram 4 into contact with the workpiece against return springs 17. The valve 10 is then closed and pressure fluid is fed into chamber 14 of the cylinder 13 of the second unit so that the diaphragm 12 is forced down against a thrust plate 16 in contact with the cylinder 5. The plate 16 is provided with lugs 16a to limit the travel of the diaphragm 12. One or more bolts 19 may be provided on the cylinder 5 to pass through apertures in a ram plate 18 and a frame plate 20 to limit the stroke of the ram 4 relative to the cylinder 5 and to inhibit rotation of the cylinder 5. The piston 6 is provided with a sealing ring 7 sandwiched between slip rings 8. The frame 1 may comprise a steel slab. The press may be manually or automatically controlled. The latter may depend upon measurement of fluid pressure or volume or of time. A relief valve and pressure fluid accumulator may be provided. The hydraulic circuit shown is described.
Patent GB-1020100-A (GB)
Title: Preparation of hydroxyalkane sulphonic acid salts and of sultones therefrom
IPC: C07D327/04
Filed: 1964-10-23
Abstract: Hydroxyalkane sulphonic acid salts are prepared by reacting an olefinic alcohol with an alkali metal or ammonium bisulphite, characterized in that the reaction is initiated by means of radiation generated by an electron beam.  Preferred alkenols are C3 to C12 beta, gamma-alkenols having a hydrogen atom on each of the beta- and gamma-carbon atoms. The initiating radiation is preferably generated by an electron beam at a dose rate of 106 to 1011 rads/hour.  The reaction may be carried out in the absence of solvent or in aqueous solution where the pH is preferably maintained between 5.8 and 7.5. The bisulphite may be added in the form of meta-bisulphite to the alkenol solution. Sulphites may also be added.  The product may be converted to free sulphonic acid or to the sultone either by heating the free sulphonic acid or by heating an ammonium salt with H2SO4 and distilling the sultone.  Examples are given in which 3-hydroxy-1-propane ammonium- and sodium-sulphonates are prepared and converted to 1,3-propanesultone.
Patent GB-1505203-A (GB)
Title: Method and apparatus for mixing particles
IPC: B01F3/18
Filed: 1976-10-20
Abstract: 1505203 Mixing particulate materials MASSACHUSETTS INSTITUTE OF TECHNOLOGY 20 Oct 1976 [5 Nov 1975] 43471/76 Heading B1C Particles of two different types are mixed by giving each type electrical charges of opposite polarity and allowing them to move into contact and retain mobility for a preselected time sufficient for a mixture to be formed of greater homogeneity than a random mixture (as defined). An apparatus comprises containers 15, 16 for the two types of particles A, B which are pneumatically discharged as streams 32, 33, which pass between high voltage corona point electrodes 37, 38 having positive and negative potentials respectively, and ground electrodes 39, 40. The charged particles form spreading streams which intermingle in a mixing chamber 43 and fall to a collecting point at a depth sufficient to provide a mixture of the desired homogeneity. The electric field may be in the range 5-15 kv/cm and the depth of the mixing chamber such that the particles take 0.5 to 4.5 secs to fall to the collecting point. The flow of particles may be controlled by valves 27, 28, 29, 30, 31.
Patent GB-1318390-A (GB)
Title: Method of loading metallic battery plaques
IPC: H01M4/29
Filed: 1970-09-14
Abstract: 1318390 Loading battery plates WESTING- HOUSE ELECTRIC CORP 14 Sept 1970 [30 Sept 1969] 43818/70 Heading C7B [Also in Division H1] A method of loading a porous flexible metallic battery plate with active material comprises (a) immersing a porous, flexible metallic fibre plaque and a consumable nickel electrode in a nickel nitrate containing electrolyte and by making the plate cathodic, precipitating Nl(OH) 2  thereon, (b) electro-chemically oxidizing and then reducing in a caustic electrolyte and (c) repeating step (a). During the precipitation the current is preferably supplied in pulses. For step (b) a first caustic solution may be used for oxidizing and then a second for both oxidizing and reducing. After each step the plate may be washed and dried in an oven, or more preferably, without heat. The metal plate may comprise bonded nickel fibres having diameters between 0À0002 and 0À003 inches and have a 5-25% theoretical density. The nickel nitrate containing solution is used at a temperature below 30C, has a pH of 0À5-1À1 and may also contain Co(NO 3 ) 2  The current supplied to step (a) is 20-100 mA/cm<SP>2</SP>. The caustic solution may be 5-35% NaOH or KOH. The oxidation step may be carried out at 5-30 mA/cm<SP>2</SP>. The consumable nickel anode in step (a), may be electrolytically deposited nickel sulphur depolarized nickel, or nickel chips in a mesh basket.
Patent GB-967628-A (GB)
Title: Process for the fermentative preparation of streptokinase
IPC: C07K14/315
Filed: 1960-12-21
Abstract: A process for the fermentative production of streptokinase comprises cultivating a streptokinase-forming strain of beta-hermolytic streptococci in a culture medium containing 0.01-0.1% of a non-ionogenic surface active agent e.g. polyhydroxyethylene sorbitan mono fatty acid ester such as the stearate or oleate and alkyl phenol polyglycol ethers of condensation products from ethylene oxide and alcohols containing 12 to 20 carbon atoms (oleylalcohol on octadecyl alcohol) or from ethylene oxide and fatty acids (castor oil fatty acid or oleic acid).
Patent GB-1030130-A (GB)
Title: Improvements in or relating to heat exchangers
Inventor: CARR FREDERICK
IPC: F28F3/14
Filed: 1963-11-01
Abstract: 1,030,130. Heat exchangers for space heating. SERVOTOMIC Ltd. Oct. 29, 1964 [Nov. 1, 1963], No. 44096/64. Divided out of 1,030,129. Heading F4S. A heat exchanger for space heating, comprises a compression welded and expanded aluminium panel 10 formed with a fluid inlet 14, fluid passages 13, 18, 19 and 20 and welded areas 11, 12 and 17, the panel having secured to it in thermal communication an aluminium flat plate heat-radiating surface element, of thermal conductivity greater than 90 British Thermal Units per hour per square foot, per degree Fahrenheit per foot, the element being attached in a removable manner to the panel by bolts 16. The surface element is spaced from the panel by aluminium heat-conducting blocks 21, of thermal conductivity similar to that of the element, which fit in the larger welded areas 17, the blocks being drilled at 22 to receive the bolts 16. A plurality of such plate elements spaced from one another by blocks such as 21 may be mounted on either side of the panel. In a modification, Fig. 3, the surface element comprises a corrugated plate 25, the troughs 27 of the plate being in thermal communication with the panel and the crests 26 being spaced from the panel to form radiating surfaces. Packing may be inserted between abutting metal surfaces to improve the thermal contact and may comprise synthetic resins or silicone paint loaded with powered metal, lead foil, silicone rubber or clay.
Patent GB-1062596-A (GB)
Title: Water insoluble enzymes and method for preparing same
IPC: C08B3/14
Filed: 1963-11-08
Abstract: An enzymatically active, water-insoluble substance of the formula <FORM:1062596/C3/1> where "cell" designates a cellulose molecule, Z is an enzyme molecule, X is an -NH, -S-, imidazole or phenol group of the enzyme molecule and which is not essential to the enzymatic activity of the enzyme and n is an integer ar prepared by reacting the enzyme with a cellulose derivative cell-(-O-CO-CH2-Y)n where Y is a bromine or iodine atom.  Specific examples relate to the formation of compounds comprising trypsin, chymotrypsin and ribonuclease.
Patent GB-967487-A (GB)
Title: Hydraulic buffer device for deep-drawing presses
Inventor: GLASER JOSEF
IPC: B21D24/08
Filed: 1962-11-27
Abstract: 967,487. Cupping. M. GANAL. Nov. 27, 1962, No. 44799/62. Heading B3Q. A deep drawing press has a press pad 4 supported by pistons in at least two hydraulic buffer cylinders 9 arranged horizontally and at equal distances from the press axis, each cylinder 9 being connected through a throttle valve 15 with two filling cylinders 10 on a common axis perpendicular to that of the buffer cylinder and whose pistons 20 are each in engagement with one arm 22 of a bell crank lever whose other arm is connected to a tension spring 24. The press may have its die 2 mounted on the press slide 1 or the latter may carry the punch 3. Press pad 4 supporting a cut-out blank 28, rests through posts 5 on a vertically movable member 6 with oblique surfaces 13 engaged by the piston rods 11 of the buffer pistons 12. During descent of the slide 1, the press pad 4 is pressed downwardly whereby buffer pistons 12 move inwardly and displace liquid such as oil through the throttle valves 15 into cylinders 10 and so displace pistons 20 outwardly against springs 14. Upon ascent of the slide, the springs 24 move piston 20 inwardly to force liquid past the throttle valves, which open automatically, into the buffer cylinders 9. The throttle valves are biased to closed position by springs 17 and their " throttle " setting is adjustable by screws 16. Opposite cylinders 10 are interconnected by pipe 25 which has a connection 26 to a pump for both removing air and topping up the oil. This pump is driven by a motor 53, Fig. 7 (not shown), or by a disengageable drive, operates automatically to maintain the volume of liquid in the cylinders. In another embodiment, Fig. 5 (not shown), the member 6 has curved sides to vary the buffer effect as drawing proceeds. This may also be done by a by-pass valve 45, Fig. 6 (not shown), between cylinders 9, 10, actuated by an axial cam driven from piston rod 11.
Patent GB-1184935-A (GB)
Title: Improvements in or relating to Cathode Ray Tubes
Inventor: SCRIBBINS PETER JOHN ERNEST
IPC: H01J29/28
Filed: 1967-10-05
Abstract: 1,184,935. Television. RANK ORGANISATION Ltd. 16 Sept., 1968 [5 Oct., 1967], No. 45522/67. Heading H4F. [Also in Division H1] A cathode-ray tube for light spot scanning a cinematograph film to produce colour television signals, is provided with a filter which attenuates green and blue light to compensate for red deficiency in the light produced by the phosphor. In one arrangement the filter is cemented to the face plate of the tube; alternatively the face plate may itself have the required filter properties to correct the light produced by the phosphor.
Patent GB-1523460-A (GB)
Title: Permanent magnetic material containing samarium cobalt copper and iron and method for producing and using the said material
IPC: H01F1/055
Filed: 1975-10-31
Abstract: 1523460 Permanent magnet material BBC BROWN BOVERI & CO Ltd 31 Oct 1975 [18 Dec 1974] 45534/75 Heading C7A A permanent magnet material contains Sm, Co, Cu and Fe and has a composition of Sm(Co 1-x-y Fe x Cu y ) 2  where 0 < X < 0.2 0.1 < Y < 0.3 6.5<Z<7.5 The alloy is made by induction melting and casting in purified argon. The coarse grained cast material is annealed at 1150-1250C, preferably 1200C for 1 hour, rapidly cooled in liquid argon or liquid nitrogen prior to a further heat treatment of 1 hour at 750-850C, preferably 820C. Spherical monocrystals, approximately 2mm in diameter, are ground from the cast materials and magnetized and made into permanent magnets by powder metallurgical techniques. The resultant permanent magnets have excellent magnetic properties.
Patent GB-1518445-A (GB)
Title: Variable extension thermal insulation panel assembly
IPC: F16L59/08
Filed: 1976-11-02
Abstract: 1518445 Thermal insulation DIAMOND POWER SPECIALTY CORP 2 Nov 1976 [7 Nov 1975] 45539/76 Heading F2X A variable extension reflective thermal insulation panel assembly comprises a stationary panel 12 filled with spaced reflective sheets 20, of, e.g. stainless steel, a movable panel 16 slidingly extendable from a pocket 14 formed along one side of the stationary panel 12, and locking means for retaining the movable panel 16 in an extended position. The movable panel 16 may be a hollow enclosure, as shown, or may also be filled with spaced reflective sheets. This type of panel assembly is especially useful as a skirt for a nuclear reactor with the movable panel 16 slidably adjusted to fit snug against the bottom head of the reactor. When the movable panel 16 has been extended to provide a panel assembly of the required size, the panel 16 is locked in position. The locking means is an L-shaped clip 44 which has one leg 48 extending along the wall 22 of the pocket 14 and the other leg 46 extending through a hole 50 in the wall 22 to pierce the movable panel 16. To prevent the removal of the clip 44 the leg 48 is retained by spring clips 52 welded to the pocket wall 22.
Patent GB-1201364-A (GB)
Title: Slewing excavators, more particularly shovel excavators for digging ditches
IPC: E02F9/02
Filed: 1967-10-05
Abstract: 1,201,364. Excavators. H. HAGELSTEIN [trading as ALFRED HAGELSTEIN MASCHINEN FABRIK], 5 Oct., 1967 [31 March, 1967], No. 45591/67. Heading E1F. The mounting of superstructure on the self propelled chassis of an excavator is such that the superstructure can be maintained in a desired relationship to a datum plane as the chassis moves over ground having a varying slope to the datum plane. A platform is pivotally mounted on the chassis about a centrally disposed, longitudinal axis 4 and is adjustable about this axis as required by the slope variations of the ground by adjusting means, e.g. piston cylinder motors 10. This platform 5 so carries the superstructure 8 that the superstructure can rotate relative to the platform 5 about an axis 7 at right angles to the axis 4.