baber/WOPTO huggingface dataset:
Patent GB-1234031-A (GB)
IPC: B01J2/16
Filed: 1967-07-28
Abstract: 1,234,031. Granulating. CALMIC ENG. CO. Ltd. 26 July, 1968 [28 July, 1967; 7 June, 1968], Nos. 34763/67 and 27277/68. Heading B5A. [Also in Division B2] A method of granulating or coating material particles comprises passing a gas stream upwardly through the perforated bottom of a chamber, said bottom having an inverted frustoconical surface and an upright conical projection in the centre of said surface, whereby a fluidized bed of said particles is formed and an upwardly directed converging flow of particles in the centre of the chamber is provided, and passing one or more gas streams downwardly from above the fluidized bed, said stream or streams entraining finely dispersed granulating or coating material. A coating chamber 1 has a perforated bottom 3 of inverted frusto-conical form and having at its centre an upright conical projection 5. Chamber 1 is continued upwardly by a diverging expansion chamber 2 closed by the fine-meshed filter fabric 9. A nozzle 6 positioned above chamber 1 is supplied with compressed air and granulating or coating material by ducts 7 and 8 respectively. Fabric 9 is arranged to be mechanically shaken to dislodge fine particles entrapped thereon. Variation of pressures in chamber 2 is arranged to control the supply of fluidizing compressed air through bottom 3. As an example of granulation, a fluidized powder containing 80 lb. sucrose, 9 lb. ascorbic acid, and 6 lb. acacia is sprayed with a liquid prepared by dissolving 4 lb. gum acacia in 2 gallons of water. The apparatus may be used for coating, e.g., tables with either liquid or with powder.
Patent GB-1238468-A (GB)
IPC: B01J8/02
Filed: 1968-06-19
Abstract: 1,238,468. Dehydrogenation. FARBWERKE HOECHST A.G. 19 June, 1968 [20 June, 1967], No. 29305/68. Heading C5E. Olefinic hydrocarbons, e.g. styrene, butenes and butadiene, are obtained by dehydrogenation of the corresponding more saturated hydrocarbon by contact with an electrically conductive catalyst in the presence of steam, the catalyst being in particle form, having a metal oxide as a major component, and being electrically heated to maintain the desired temperature. The heating may be achieved by passing a current between electrodes in contact with the catalyst or by electrical induction, the former being described in detail. Examples describe the production of styrene from ethylbenzene using a catalyst of Fe 2 O 3 /G 2 O 3 /K 2 O in the proportions 93/5/2. Reference has been directed by the Comptroller to Specification 1,100,088.
Patent GB-1239480-A (GB)
Title: Improved thyristor device
IPC: H02M1/08
Filed: 1968-11-14
Abstract: 1,239,480. Thyristors. ALLMANNA SVENSKA ELEKTRISKA A.B. 14 Nov., 1968 [15 Nov., 1967], No. 54078/68. Heading H1K. [Also in Divisions H2 and H3] A thyristor 1 has a plurality of gate electrodes (shown as three) which are used in turn so as to distribute the heat uniformally.
Patent GB-1239521-A (GB)
IPC: B29C43/18
Filed: 1969-06-18
Abstract: 1,239,521. Moulding seal rings. MICRODOT Inc. 18 June, 1969, No. 30960/69. Heading B5A. An annular elastomeric seal 63 is moulded and bonded to an annular metal support 15 by a die set comprising an upper die insert 35 axially movable relative to a plate 34 secured to a press, a stationary bottom plate 12 with a lower die insert 11 thereon which is recessed to receive the support 15, and a centre die insert 22 with an annular portion 29 which clamps the support during the moulding operation. With the die open, Fig. 1, elastomeric material 59 is placed on a core 18, 21 flanged at 19 and resiliently secured by a bolt 16 and spring washers 17; the core is thus slightly movable relative a replaceable part 14 to allow gases to escape from the die cavity via an annular groove 55 in the part 14 and bores 49, 57. When the pressure plate 34 is lowered a bushing 39 acts on a plate 41 via a spring 42 to force the insert 22 downwardly causing it to position and clamp the support 15 and compress the material 59 and force it into the die cavity formed between the parts 29, 14 and the lower parts 43, 46, Fig. 5, of the insert 35. The parts 43, 46 are so shaped that when the die is opened they tear the surplus elastomeric material from that in the die cavity. During the initial opening movement of the die, the insert 22 is held down by the spring 42.
Patent GB-1250342-A (GB)
IPC: B22D7/10
Filed: 1968-11-18
Abstract: 1,250,342. Ingot and other moulds. FOSECO INTERNATIONAL Ltd. 24 Oct., 1969 [18 Nov., 1968], No. 54641/68. Heading B3F. [Also in Division E2] The head, head box of an ingot mould or feeder head of a casting mould is lined with exothermic or heat-insulating slabs having a V-shaped strip-metal wedge 1 between abutting slab edges 2, 3. The wedge strip is formed by bending 10-32 mil steel strip and sharpening the bent edge. The slabs may be of refractory material paper pulp and binder.
Patent GB-1259607-A (GB)
IPC: G09F11/10
Filed: 1968-07-23
Abstract: 1,259,607. Falling flap display apparatus; seeking arrangements. LAMSON ENG. CO. Ltd. 22 July, 1969 [23 July, 1968], No. 35010/68. Headings G4H and G5C. To cause a desired display to be exhibited by a falling flap apparatus 10, a switch 1 is operated to apply a voltage through selected ones of a row of microswitches 5 to close a relay 13, 12 to cause drive motor 11 to rotate the display 10. Motor 11 will continue to rotate so long as at least one of the chosen microswitches is closed. As the desired display comes into view, code areas 8 on a rotating drum 7 open all of the chosen microswitches 5, therefore allowing relay 13, 12 to open and motor 11 to stop. As described, drum 7 and display 10 have a common drive shaft 9, and the areas 8 are depressions in the drum surface. There are eight lines 3 and switch 1 selects three of them. The apparatus is useful as a railway train-indicator.
Patent GB-1264767-A (GB)
IPC: G03C1/91
Filed: 1970-08-11
Abstract: 1,264,767. Coated film. FUJI PHOTO FILM CO. Ltd. 11 Aug., 1970 [13 Aug., 1969; 18 Aug., 1969], No. 38704/70. Heading B2E. [Also in Division G2] A polyethylene or polyethylene-coated paper support for a photographic light-sensitive material is subbed by applying a solution or dispersion of gelatin or of a maleic anhydride copolymer on a solvent transparent to ultraviolet radiation, said solution or dispersion having a surface tension of 23 to 50 dyn/cm at 35‹C measured by du Neuy's method, to form a subbing layer and then irradiating the surface bearing the subbing layer with ultraviolet radiation. The solution or dispersion solvent may be water, methanol, ethanol, acetone or tetrahydrofuran and mixtures thereof. The maleic anhydride may be copolymerised with ethyl acrylate, methacrylamide, vinyl acetate, vinyl propionate, vinyl benzoate, vinyl methyl ether, vinyl butyl ether, styrene or ethylene dichloride. The polyethylene of the support may contain or its surface may be treated with an anthraquinone or benzophenone u/v sensitiser.
Patent GB-1265218-A (GB)
IPC: G01C1/00
Filed: 1969-08-04
Abstract: 1,265,218. Determining compass deviation. M. W. G. WEBSTER. Oct.26, 1970 [Aug. 4, 1969], No.38921/69. Heading G1F. An instrument for determining the deviation of a compass comprises a bearing plate J resting on a disc F and having one scale P for indicating a magnetic bearing and a second scale Q for indicating a relative bearing, an alidade K carrying a foresight L and a backsight M and supported on the bearing plate J such that it can rotate therewith about a pivot on the disc F, and a deviation plate R mounted on the disc F and having a short scale for determining West, East, and zero deviations. The disc F is supported horizontally on a block G having screws H resting in vertical slots of brackets C hinged to a base A. The sights L, M may fold down on to the alidade, which is of a transparent plastics material. In use, to determine the deviation of a ship's compass, the magnetic bearing of a distant object is determined from a chart and the alidade K is set and locked to the bearing plate J by a locking knob O so that its centre line V is aligned with this bearing on scale P. The bearing plate is turned till sights L, M are aligned with the object. With the ship headed in the required direction for adjustment of the compass, the steering compass is read and against this course, on scale P, is read the deviation on the deviation plate scale. The compass deviation on a subsequent course may be checked using the relative bearing scale Q and a distant object of known magnetic bearing.
Patent GB-1266416-A (GB)
IPC: G01N19/04
Filed: 1969-03-07
Abstract: 1,266,416. Adhesion tester. B. F. GOODRICH CO. March 7, 1969 [March 11, 1968], No. 12239/69. Heading G1S. Quarter inch wide strips of material 24, 33 are held at right angles to one another in notches 23 across pairs of clamping levers 19 pivoted at 18 to upper and lower mounting heads 15. The upper head 15 may be loaded by a 11b weight 36 which rests on a switch 37 in a timer circuit and the lower head may be raised by a handle 29 to lift a coupling 28 and the head supporting bar 13 so that the lower strip 24 engages and lifts the upper strip 33 along with the upper clamps, sleeve 35 and weight 36. As the weight is lifted off the switch 37 a timer operates a motor which rotates shaft 27 and steadily lowers the bottom clamps so that after a period of compressing the strips together the weight 36 is rested on a bracket 30 and the bottom strip is pulled off the upper strip. Before strip separation occurs and after resting the weight 36 the force of adhesion is indicated through a lost motion linkage 41, 42 directly pulling down on a spring balance 40. One of the strips may be of stainless steel so that a comparison between adhesion factors may be obtained for different rubber and so on strips when tested each against the steel strip. The instrument may be enclosed in a temperature controlled gas tight cabinet.
Patent GB-1266656-A (GB)
IPC: F16L19/04
Filed: 1970-05-12
Abstract: 1,266,656. Joint-making packing; tube joints. R. R. REDDY. 12 May, 1970 [23 May, 1969], No. 22997/70. Headings F2B and F2G. A seal between frusto-conical or planar abutting surfaces 20, 21 in a tube joint comprises a ring groove in the surface 20 formed by a base face 26, a backing face 28 and a retention lip 29, a resilient sealing ring 30 of, for example P.T.F.E. seated within the groove and having a base 31, an abutment 32, a wedge face 34 forming an angle equal to that of the abutting surfaces and a land member 35 bounded by first and second grooves 36, 37, the first being sufficiently wide to receive the land member when it is deflected by the opposing abutting surface 21 upon the joint members 11, 12 being pulled together as by a nut 14 and backing ring 13, the arrangement being such that when a fluid pressure differential is applied with the abutment 32 facing towards the region of higher pressure, a force is exerted as shown by the arrows to force the land member against the surface 21, to force the base against the base face and to force the wedge formed by the wedge face and base towards the intersection of the base face and abutting surfaces. As shown, the higher pressure is outside the tube.
Patent GB-1288712-A (GB)
IPC: D07B7/06
Filed: 1971-02-22
Abstract: 1288712 Mounting spools in stranding machines SCHWERMASCHINENBAU - KOMBINAT ERNST THALMANN VEB 22 Feb 1971 5134/71 Heading D1T [Also in Division F2] Bushes 6, in which spool supporting trunnions 3 are rotatably mounted in a stranding machine frame, are axially movable to engage and disengage the trunnions with the spool hub, the bushes having oblique projections or grooves 17 formed in their surfaces, engaging corresponding grooves or projections 18 in longitudinally movable draw-bars 7, which have racks formed in their remote surfaces, engaging pinions on a common shaft rotatable in either direction, via a reversible ratchet mechanism, by a manually movable yoke 10. (For Figure see next page)
Patent GB-1289113-A (GB)
IPC: G03B42/04
Filed: 1969-10-02
Abstract: 1289113 X-ray film cassettes EASTMAN KODAK CO 2 Oct 1969 [8 Oct 1968] 48557/69 Heading G2A [Also in Division H5] An X-ray film cassette 10 has a window 30 in one corner which is normally covered by a slide 36, which slide can be withdrawn to allow identification data to be recorded on the film by optical projection. As shown, the cassette has a base 12 with peripheral flanges 14 to which is hinged a cover 20. The inner face of the base 12 is formed as a cylindrical surface and carries an intensifying screen 16. The cover plate 20 carries a foam pad 22 and a second intensifying screen 24. When the cassette is closed, the film sheet therein is clamped against the curved surface of the base 12 and takes the same curve. The outer surfaces of the cassette remain flat and so it can be handled easily by loading machines. On inserting the cassette into a printer, slide 36 is automatically withdrawn and previously prepared data is projection-printed on to the film. A further opening 32 in the cassette, which can be uncovered by manual withdrawal of slide 36 to an intermediate position while still keeping window 32 covered, allows the operator to check visually that film is present. A visual indicator 48 formed as a toggle member is mounted on the inner side of a flange 46, and can be retained in either of two positions by an off-centre spring 52. The toggle has pairs of legs 54, 56 which are aligned with windows 42, 44 in the flange 46. When the cassette is loaded with film by an automatic loading machine, the toggle takes up one of its positions. When the cassette is placed in the identification printer, the toggle is switched over to its other position. Thus the position of the toggle, as observed through windows 42, 44, indicates whether the identification data has been printed or not. The legs of the toggle may be of different colours.
Patent GB-1289930-A (GB)
IPC: H03K3/283
Filed: 1971-07-08
Abstract: 1289930 Crystal oscillators; bi-stable circuits ITT INDUSTRIES Inc 8 July 1971 [15 July 1970] 32163/71 Heading H3T In a circuit which may have a piezo.electric crystal connected between the emitters of two cross-coupled transistors T 1 , T 2 , to provide an oscillator the two transistors have their emitters connected via a collector emitter path of a respective transistor T 5 , T 6  of like polarity to an earth line, their collectors connected via the, collector-emitter path of a respective transistor T 3 , T 4  of opposite polarity to a supply line and their bases connected to the base of the respective transistor T 3 , T 4 , a constant potential being applied to the paralleled bases of transistors T 5 , T 6 . An emitter follower output stage comprising transistor T 7  with emitter load T 8  as shown may be added and the constant potential be supplied by resistor R and transistor T 9  functioning as a diode. A Zener diode may be used in place of T 9 . The circuit may be monolithically integrated and when connected to an external crystal and appropriate frequency dividers be used to drive a clock or provide a stable oscillator &c.
Patent GB-1290417-A (GB)
IPC: F16C29/06
Filed: 1970-12-08
Abstract: 1290417 Bearings G TITT 8 Dec 1970 [8 Dec 1969] 58312/70 Heading F2A A shaft 3 is mounted for axial movement by means of a bearing with recirculating rollers 4, each roller being formed with two spaced cylindrical sections which make rolling contact with the shaft 3 and a sleeve 2. A deflecting element 8 of plastics and held in place by a spring ring 10 is provided. The rollers are mounted in a cage 5 which comprises either a one-piece plastics window cage (16) (Fig. 3, not shown) or sideclips (11) (Fig. 2a, not shown) mounted on pins (12). In both cases, the rollers are supported in pivoting roller guides (15), (14). In a further embodiment (Fig. 4, not shown), the shaft is bolted to a frame at part of its periphery and the bearing then extends only partly round the shaft.
Patent GB-1295688-A (GB)
IPC: C04B35/71
Filed: 1970-03-02
Abstract: 1295688 Cutting tools EI DU PONT DE NEMOURS & CO 2 March 1970 [3 March 1969] 9981/70 Heading B3T [Also in Divisions C1 and C7]  A sintered alumina based composition (see Divisions C1, C7) can be used in cutting tools, as disposable inserts suitable for turning, boring and milling or they can be laminated with or otherwise boned to metal bonded carbides or tool steels for regrindable types of tooling. They are generally suitable for the removal of ferrous metals e.g. hardened steels, alloy steels, maraging steels, cast iron, cast steel, nickel, nickel and cobalt based alloys, and materials such as fibre glass-plastic laminates and ceramics.
Patent GB-1296208-A (GB)
IPC: H02J7/00
Filed: 1969-04-18
Abstract: 1296208 Battery charging MEMCO (ELECTRONICS) Ltd 16 July 1970 [18 April 1969] 19940/69 Heading H2H A battery charging circuit comprises a rectified A.C. supply 12-15 in series with a current limiting resistance 17, a diaphragm controlled, snap-action switch 21 and a battery 7, the diaphragm 22 of the switch 21 dividing a casing 23 into two parts, one being at atmospheric pressure and the other being in communication with a chamber 8 adapted to collect gases liberated by electrolysis of the battery electrolyte via the cross-member of a T-tube 6, the other part of this tube providing an exhaust path via a porous, preferably sintered ceramic plug 5. The apparatus is surrounded by a casing 1, having an indicator lamp 18 and the outlet 4 of the gas exhaust path on its exterior. In use, upon the battery 7 becoming fully charged, the pressure of the liberated gases cause the diaphragm switch to snap into an off position, the pressure in the tube 6 slowly dropping to atmospheric via the plug 5 and the plug then switching back to an on position.
Patent GB-1310228-A (GB)
Title: Method of mining and an apparatus for the carrying out of said method
IPC: E21D23/00
Filed: 1969-10-16
Abstract: 1310228 Mineral-mining installations GULLICK DOBSON Ltd 13 Oct 1970 [16 Oct 1969] 50856/69 Heading E1F A mineral-mining installation comprises a mining unit having staker means that can bear down on the unit to secure it between the roof and floor of a mine working, two conveyer units, a mineral-winning machine, guide or support means for said machine and a settable roof support assembly connected by ram means to the rear of the unit, the ram means permitting of advance of the unit when the staker means is free of the roof and the roof support assembly engages the roof and vice versa. Preferably the staker means involves extensible legs 32 and a beam 34 extending the length of the unit, the conveyer units are ramp plates 22 and an endless belt or paddle conveyer, the guide or support means are pivotally connected rails adjustable in vertical planes, and the winning machine is a bi-directional-cutting machine 26. Limit switches towards the limits of travel of the machine in the mining unit so control the haulage of the machine as to appropriately reverse the direction of travel of the haulage when such reversal is required.
Patent GB-1312157-A (GB)
Title: Telectrical circuit breakers and isolators
IPC: H01H9/38
Filed: 1970-10-22
Abstract: 1312157 Automatic circuit-breakers DORMAN SMITH SWITCHGEAR Ltd 22 Sept 1971 [22 Oct 1970] 50094/70 Heading H1N A circuit-breaker or isolator has, for the or each pole, a moving contact assembly 11 comprising a plurality of parallel-connected movable contact arms 27, each carrying a contact 28 engageable with a fixed contact 14, the arms being of strip metal and disposed side-by-side in parallel relation in a carrier 22, each arm having a spring 33 providing a loading portion engaging one longitudinal edge of the arm and a pair of links 36, 37, extending across the arm adjacent opposite sides thereof and locating on a cross member 32 extending transversly of the arms and provided by the carrier 22. Each arm 27 has a V-shaped notch 31 by which it locates on and makes electrical contact with an arcuate bearing surface 18 of a hinge contact block 15. A protrusion 42 of each arm 27 engages a lip 43 of the carrier 22 to limit movement of the arm under its spring loading. One arm 27a is longer than the other arm 27 and provides an arcing contact 29. Arm 27a has its own independent helical loading spring 30. A respective bimetal and electromagnet arrangement (not shown) associated with each contact assembly 11 cooperates with a common trip bar (not shown) to cause collapse of a toggle linkage 12 and tripping of the breaker. When the contact assembly 11 is used in an isolator for an electrical component, the construction provides two opposed carriers 22 on either side of a withdrawable conductor (not shown). The notch 31 and hinge contact block 15 arrangement is claimed in Specification 1,312,156. (For Figure see next page.)
Patent GB-1313901-A (GB)
Title: Apparatus for clearing sewage sludge from drying beds
IPC: B65G65/00
Filed: 1970-06-16
Abstract: 1313901 Apparatus for clearing sewage sludge; endless conveyers D WICKHAM & CO (STEVENAGE) Ltd 21 May 1971 [16 June 1970] 29218/70 Headings B8A and B8E Dried sewage sludge is cleared from a bed of sand by an elevator 11 which is provided with downwardly curved tines 23 which lift the sludge as the elevator moves along a gantry 10. The latter is mounted on wheels for travel over the bed. Pivoted links 15, 16 support the elevator which is raised and lowered by a jack 17. Slats 12 on the elevator move the sludge up over a back plate and on to a conveyer 13 which feeds a conveyer 14. The inclination of the tips of the tines to the vertical is less than 45 degrees.
Patent GB-1320495-A (GB)
Title: Flexible grille
IPC: E06B9/18
Filed: 1969-06-25
Abstract: 1320495 Collapsing grilles RELY-A-BELL ALARMS Ltd 22 June 1970 [25 June 1969] 32056/69 Heading E1J A collapsing grille, e.g. for protecting shop windows, comprises a plurality of parallel rows of U-shaped steel links 1, the links in a row being spaced apart by the links of an adjacent row, rods 6 connecting the rows together and allowing angular movement between adjacent rows about an axis parallel to the rows, and means for collapsing the grille by effecting such angular movement, preferably for folding and unfolding the grille in concertina fashion. The arms 2, 3 of the links 1 have off-set ends 7 to prevent friction between arms of adjacent links when folding. Plastics sleeves 8 may be fitted on the rods 6 to maintain the spacing of the ends 7 of the arms. The grille is suspended from a horizontal support and the extended ends of alternate rods 6 carry rollers 9 which run in vertical guide channels, and a horizontal member attached to the base of the grille is connected by cables passing over pulleys above the grille to a winch for raising and lowering the grille. Alternatively, the grille may be rolled up on a rotatable drum mounted above the grille.