baber/WOPTO huggingface dataset:
Patent GB-677858-A (GB)
Title: Delay line termination
IPC: H03H9/36
Filed: 1950-07-24
Abstract: 677,858. Electromechanical delay lines. STANDARD TELEPHONES & CABLES, Ltd. (International Standard Electric Corporation). July 24, 1950, No. 18412/50. Class 40 (viii). A pulse delay system comprises one or more mechanical delay lines terminated at opposite ends in such a manner that a pulse injected at the input point produces a number of first-order echo pulses of similar magnitude and opposite sign at the output point. As shown in Fig. 1, two magnetostrictive strips 11 and 12 are provided with an input coil 13b and an output coil 14b. Coils 13a and 14a provide a steady flux. One end of each line is anchored as shown at 18 to provide an infinite impedance termination and the remaining ends are free to provide zero impedance terminations. The first order reflections at the ends of the lines will cancel themselves at the output point. Multiple order reflections are much reduced by damping rubber pads 19. In an alternative arrangement one line may be anchored at both ends and the other may be free at both ends. A liquid delay line is shown in Fig. 6, piezo-electric crystals 131 and 141 being used as input and output means. The open ends of the lines offer negligible impedance and their closed ends have very high impedance. Flexible diaphragms 191 serve as damping means.
Patent GB-697502-A (GB)
Title: Means for holding thermostat phials in refrigerators
Inventor: TURNBULL ERIC JOHN
IPC: F25D29/00
Filed: 1951-08-03
Abstract: 697,502. Temperature-responsive actuating-elements. LONGFORD ENGINEERING CO., Ltd. Aug. 28, 1951 [Aug. 3, 1951], No. 18458/51. Class 64 (ii) [Also in Group XXV] The pilot bulb 4 of a thermostat is removably pressed on to the surface of the evaporator 1 of a refrigerator by a curved leaf spring 5 mounted in a housing 6 secured to the surface. The curved spring 5 is retained by ears 9, Fig. 3, locating at the ends of the sheet metal housing 6, which extends as a channel surrounding the bulb 4. The edges of the housing 6 are turned outwards to form flanges, Fig. 2 (not shown), for screwing, riveting, soldering or welding to the evaporator surface.
Patent GB-845027-A (GB)
Title: Improvements in and relating to inflatable rubber dinghies and other like inflatableproducts
Inventor: LOWERY PETER ALBERT
IPC: B63C9/02
Filed: 1957-06-12
Abstract: 845,027. Radio reflectors. CHEMRING Ltd. June 12, 1958 [June 12, 1957], No. 18502/57. Class 40(7). [Also in Groups VIII and XXXIII] A corner reflector is made of flexible material and is carried by an inflatable support mounted on and incorporated into an inflatable dinghy or a small inflatable marker boat. Where the support is an inflatable dinghy comprising tubes 6 and a protective canopy 7 the top of the canopy may consist of an inflatable tube 8 associated with a pair of crossed arch-shaped support tubes 9. The tubes 9 support the crossed vertical surfaces 10 of the reflector whilst a horizontal reflecting portion lies within the ring 9. Where an inflatable boat is to be used mainly or solely for supporting a corner reflector the structure of Fig. 3 may be used. This consists of upper and lower circular inflatable tubes 12, 11, joined by tubular pillars 13. Vertical and horizontal reflecting surfaces are arranged within the structure. The reflecting material may be silver coated nylon. Alternatively it may be a laminate, for example, metal foil or silvered nylon mesh inserted between flexible plastic film. Specification 639,740 is referred to.
Patent GB-1444721-A (GB)
Title: Manufacture of sheet or filament material
IPC: A24B15/14
Filed: 1972-04-21
Abstract: 1444721 Tobacco substitutes ROTHMANS INTERNATIONAL Ltd 20 July 1973 [21 April 1972 (2) 14 June 1972 (2)] 18508/72 18509/72 27753/72 and 27754/72 Heading A2C [Also in Divisions B5 and C3] A sheet of a smokeable material comprising a water-insoluble alginate, preferably calcium alginate mixed with tobacco offal (ground or shredded), an adhesive binder such as sodium carboxymethyl cellulose and a humectant, for instance diethylene glycol, is produced by any of the non-paper-making techniques for forming reconstituted tobacco.
Patent GB-756507-A (GB)
Title: Improvements in and relating to bellows-type air pumps
IPC: F04B45/02
Filed: 1954-06-24
Abstract: 756,507. Bellows pumps. ANDERMATT, C. June 24, 1954 [June 24, 1953], No. 18546/54. Class 8(1). A bellows pump comprises discs 11, 12 having a bellows 10 disposed between them and internal guiding means for guiding one disc with respect to the other. The guiding means comprise members 13, 14 pivoted to the discs 11, 12 at one end and carrying rollers 20, 25 at the other ends which are guided in guides 22, 23 on the discs 12, 11 respectively. The members 13, 14 are pivoted scissorwise at 15. The disc 11 is provided with an inlet valve 33 and the disc 12 with an outlet 34 to which a hose 35 can be attached and when not in use may be coiled round an annular corrugation 37. The disc 12 also carries resilient stops 51. The discs may be provided with external hooks and eyes for securing in an inoperative position. They may be secured in an extended position and the pump may then be used as a seat. The Specification describes modifications in which the guides 22, 23 are curved. The lengths of the members 13, 14 between the pivot 15 and the fixed pivot and the pivot 15 and the roller axis may be unequal in which case the discs are guided at an angle to each other. The guides may be in the form of lazy tongs. The bellows may be externally or integrally reinforced.
Patent GB-883007-A (GB)
Title: Improvements in or connected with centrifugal pumps
IPC: F04D29/62
Filed: 1959-06-01
Abstract: 883,007. Centrifugal pumps. GARDNER, L. F. (Klein, Schanzlin & Becker A.G.). June 1, 1959, No. 18552/59. Class 110 (1). In a two-stage centrifugal pump built up from components of single-stage centrifugal pumps, the impeller diameters of which form a series with geometric progression, each diameter in the series bearing a ratio of one to the tenth root of ten, i.e., substantially 1 : 1.26, to the next larger diameter, the impeller diameter of the second stage is greater than that of the first stage, and the volute casing of the first stage is replaced by a diffuser leading to the second stage. The use of different diameters for the two impellers gives a greater choice of discharge heads. In the two-stage pump shown, in which the diameter of the second-stage impeller 3 is about 1.26 times that of the firststage impeller 2, the impellers 2, 3 and the second-stage volute easing 4 are standard single-stage components. An interstage diffuser 6 is provided.
Patent GB-746929-A (GB)
Title: Improvements relating to alternator exciters
Inventor: WEST ALLAN LUKE
IPC: H02K19/38
Filed: 1954-06-24
Abstract: 746,929. Alternators. BRUSH GROUP, Ltd. Dec. 23, 1954 [June 24-, 1954], No. 18568/54. Class 35. To ensure the build-up of voltage of an alternator a, the exciter k which is driven by the alternator shaft, is excited from the alternator output through a rectifier c and an impedance e having a high temperature coefficient, e.g. an incandescent lamp filament.
Patent GB-1039128-A (GB)
Title: Safety bottle closure
IPC: B65D50/04
Filed: 1965-05-03
Abstract: 1,039,128. Bottle closures. R. D. CHANCELLOR. May 3, 1965, No. 18569/65. Heading B8T. A bottle and safety closure cap combination consists of a bottle neck 7 having four slotted indentations 11 and a closure cap 13 comprising a cylindrical collar 17 and a flexible top 15 from the centre of which a rod 29 and from the edge of a sleeve 21 extend, a flexible pin 37 passing through holes 35 in the pillar and 31, 33 in the sleeve and locking into the indentations 11. For ease of assembly, slots extending down from the top of the sleeve can be used in place of the holes 31, 33. To remove the closure cap 13, axial pressure is applied to the flexible top 15 so that the rod 29 is pushed into a boss 27 with a slotted upper portion 30, thereby bending the pin 37, Fig. 5 (not shown), and disengaging its ends from the slots 11. The sleeve 21 may have a lip 23, Fig. 1 (not shown), to form a seal with the bottle neck and any number of pairs of oppositely located slots may be employed.
Patent GB-350726-A (GB)
Title: Improvements in and relating to the treatment of vessels to render them suitable forbleaching textile goods
IPC: D06B23/00
Filed: 1930-06-18
Abstract: Vessels used for bleaching textile goods with hydrogen peroxide are treated with a thin internal coating containing mainly free lime with a comparatively small quantity of Portland cement, the coating being allowed to stand until partly dry and then washed with an aqueous solution containing alkali silicate and carbonate.  In an example, 4 parts of burnt lime were slaked into a cream with water.  1 part of Portland cement and 1 part of finely-divided magnesia were separately made into a cream with water and the three components mixed and filtered.  The internal surfaces of the vessel had applied to them a thin layer of the slurry so formed by painting or spraying.  The vessel was allowed to stand for about 20 hours and then, before the coating was set, an aqueous solution containing 1 \ba1/2\be per cent silicate of soda solution of 80 DEG  Tw. and 0,75 per cent of soda ash was placed in the vessel and boiled for about 6 hours.  On being drained out, the mixture of alkali silicate and carbonate carries with it any loosely adhering particles of the layer which form a thin coating on the interior of the outlet pipes and pumps.  It is stated that, if a second coating is required, it should be put on before the first has dried.  Specification 352,690 is referred to.ALSO:Vessels used for bleaching textile goods with hydrogen peroxide are treated with a thin internal coating containing mainly free lime with a comparatively small quantity of Portland cement, the coating being allowed to stand until partly dry and then washed with an aqueous solution containing alkali silicate and carbonate.  In an example 4 parts of burnt lime were slaked into a cream with water.  1 part of Portland cement and 1 part of finely divided magnesia were separately made into a cream with water and the three components mixed and filtered.  The internal surfaces of the vessel had applied to them a thin layer of slurry so formed by painting or spraying.  The vessel was allowed to stand for about 20 hours and then before the coating was set an aqueous solution containing 1 1/2 per cent silicate of soda solution of 80 DEG  Tw. and 0,75 per cent of soda ash was placed in the vessel and boiled for about 6 hours.  On being drained out, the mixture of alkali silicate and carbonate carries with it any loosely adhering particles of the layer which form a thin coating on the interior of the outlet pipes and pumps.  It is stated that, if a second coating is considered necessary, it should be put on before the first has dried.  Specification 352,690 is referred to.
Patent GB-869886-A (GB)
Title: Aircraft instrument system
IPC: G01L9/00
Filed: 1957-06-13
Abstract: 869,886. Indicating-apparatus; pressuregauges. KOLLSMAN INSTRUMENT CORPORATION. June 13, 1957 [Oct. 8, 1956], No. 18689/57. Classes 106 (2) and 106 (4). An aircraft instrument system comprises aneroid capsules 20, 21 and an electric motor 74 for positioning a pointer 39 relative to a dial plate 44, the capsules being arranged to position the pointer 39 independently of the motor 74 and the motor 74 positioning the pointer 39 in accordance with an accurate electrical computation of altitude. As shown, Fig. 1, the capsules 20, 21, through bimetal compensators 24, 25, sectors 32, 33 and shaft 34, position the pointer 39 relative to a frame 47 and an electrical correction factor is applied to the frame 47 by the motor 74 through a differential gear 67 and gears 62, 46. A pressure correction may be made through a knob 50 and gear 76 acting independently through the differential gear 67 on gears 62, 46. The electrical correction factor is obtained from a master air data computer fed by a syncrogenerator 61 geared to the shaft 34. Should the electric power fail automatic return mechanism, Fig. 3, returns the frame 47 to neutral position and the mechanical system operates without electrical compensation. Drums 48, 49 driven from spiral gear 52 indicate the extent of the correction entered at knob 50 in inches of mercury and millibars respectively. When the system is applied as an altimeter drum 41 indicates thousands of feet and pointer 39 a thousand foot change in each revolution.
Patent GB-401420-A (GB)
Title: Automatic warning signals and stopping devices for internal combustion engines
IPC: G05D13/00
Filed: 1932-07-02
Abstract: 401,420. Engine stop-gear. BLACKSTONE, G. M., CARTER, F., and CARTER, E., Rutland Engineering Works, Stamford, Lincolnshire. July 2, 1932, No. 18738. [Class 122 (iv).] An automatic stop-gear with remote handcontrol for internal-com - bustion engines driving hand fed or operated machines such as plate-rolling plants, includes an overload warning signal and delayed action to stop the engine if the overload continues. The engine governor linkage includes a spring b<3> or weight and an electrically-operated trip a<1>, b<1>, Fig. 1, between the governor and the fuel measuring lever e which when an electricswitch is operated at over-load is disconnected and effects the fuel cut-off. The governor arm j is connected to an earthed arm g carrying two contacts g<1> which engage contacts h<1>, h<2> on a quadrant h, The terminal h<3> is connected to a siren, bell, or lamp which is co:mected to a battery ; the terminal h<4> is connected to one of the terminals d<1> of a time-lag device Fig. 3 comprising a solenoid d and dash-pot m, the other terminal of which is connected to a battery. One lead d<1> of the solenoid d, Fig. 1, is connected to one of the terminals of a tumbler switch, the other terminal of which is connected to one of the terminals of the push switch k, Fig. 3, the other terminal of which is connected to the battery. Remote controls are arranged in parallel with the switch k. As the governor sinks, the warning is first given, the switch k is then operated after a lag determined by a needle m<2> of the dash-pot, and then the solenoid d, Fig. 1, is operated.
Patent GB-680733-A (GB)
Title: Adducts of bisnor-cholatrienic-22-aldehyde
IPC: C07J9/00
Filed: 1950-07-27
Abstract: A compound of the general formula <FORM:0680733/IV (b)/1> where B is a hydroxyl group or an esterified hydroxyl group and A is an adduct bridge between the two carbon atoms designated as carbon atoms 5 and 8, said adduct bridge being the radical of an aliphatic 1,2-olefinic-1,2-dicarboxylic acid or of an ester or anhydride thereof.  This compound is obtained by the steps of ozonizing in solution a dehydroergsteryl adduct having in the 17 position the side-chain <FORM:0680733/IV (b)/2> with 1.0 to 1.25 mols. of ozone per mol. of adduct, at a temperature between about - 80 DEG  C. and +30 DEG  C., decomposing the ozonide under reductive conditions and recovering the resulting C-22 aldehyde.  As solvent, there may be used methylene chloride. The decomposition is conducted with zinc and glacial acetic acid medium.
Patent GB-570385-A (GB)
Title: Method of making selenium elements
IPC: B65G37/02
Filed: 1943-11-12
Abstract: 570,385. Selenium rectifiers and photo-electric cells. STANDARD TELEPHONES & CABLES, Ltd. Nov. 12, 1943, No. 18845. Convention date, Nov. 18, 1942. [Class 40 (iii)] [Also in Groups II, XXII and XXXVI] A plurality of selenium elements for rectifiers and photo-electric cells are manufactured simultaneously by placing a number of baseplates 2 in a holding jig 1, Figs. 6 and 8, then covering the base-plates with a layer 13 of adherent selenium and further treating the covered plates while they are still in the jig. The jig and the base-plates may be formed simultaneously by punching holes in a disc or plate of iron or steel coated with nickel or aluminium, the punched-out parts constituting the base-plates being reinserted in their holes to receive their treatment. A punching device for this purpose is shown in Fig. 4, and. comprises a plate 5 with pins 6, 7 for registering with central and peripheral holes 3, 4 in the disc or plate 1, punches 9 on one side, and spring cushioned buttons 11 on the other side for reinserting the punched parts into their holes when the punches 9 are raised after the punching operation. The base-plates may be pushed back flush with the surface of the disc or plate 1 or somewhat less than flush. Selenium powder is then sprinkled on the baseplates and compressed and heated at, say, 120‹ C., after which a further treatment at about 200‹ to 214‹ C. may follow for half an hour or more. A mask 14, Fig. 8, is then applied over the base-plates and jig and a counter-electrode of Wood's metal or an alloy of bismuth, cadmium or tin is applied. Other treatments may also be performed, such as lacquering or fuming with selenium dioxide before the application of the counter-electrode, and voltage treatment thereafter. The several operations may be performed in a continuous process, the jig being passed through a succession of apparatus.
Patent GB-316399-A (GB)
Title: Improvements in the hydrogenation of aldehydes
IPC: C07C29/17
Filed: 1928-06-29
Abstract: 316,399. Horsley, G. F., and Imperial Chemical Industries, Ltd. June 29, 1928. Catalytic agents, preparation of; hydrogenated organic compounds, catalytic production of.- The catalytic hydrogenation of crotonaldehyde to butanol is effected by passing a mixture of the vapour and hydrogen, with or without steam, over a catalyst comprising copper and/or silver and at least one oxide or hydroxide of the metals iron, cobalt, nickel, zinc, calcium, strontium, barium, magnesium, divalent chromium, manganese., or over a mixture of copper and/or silver with iron and/or nickel containing iron and/or nickel oxide at a temperature below 300‹. The catalyst may be prepared by precipitating the oxides or hydroxides of copper or silver with the oxides or hydroxides of iron, cobalt, nickel, zinc, magnesium, chromium, manganese and reducing the mixture under conditions such that the copper or silver is wholly reduced and the other metal partly or not at all. The presence of mixed salts is avoided by adding the metal salt solution to an alkali solution instead of vice versa. According to an example crotonaldehyde vapour, steam and hydrogen are passed over a catalyst consisting of copper and nickel oxide at a temperature of 120‹. Specifications 2306/14 and 147,118 are referred to.
Patent GB-702861-A (GB)
Title: Improvements in and relating to dynamo-electric machines
Inventor: FITCHETT FREDERICK
IPC: H02K49/06
Filed: 1951-08-10
Abstract: 702,861. Dynamo-electric machines, transmitting mechanical power. BRITISH THOMSONHOUSTON CO., Ltd. July 15, 1952 [Aug. 10, 1951], No. 18880/51. Classes 35 and 38 (4) A magnetic coupling for Diesel ship propulsion has a wound polyphase driven member so that it may be locked and used as an alternator when not required for propulsion. The driving member 8 on the engine shaft 7, carries excited poles 9, while the driven member 12 which may be locked by means 15, has a wound core 13 connected to terminals 14 which may be shortcircuited when the machine is acting as a coupling. If desired, the phase windings may be brought out to slip-rings 16 and connected to resistances 17 to regulate the drive when acting as a coupling.
Patent GB-1374360-A (GB)
Title: Transesterification of quinoxaline-2-carboxylic acid esters
Inventor: KASUBICK R V
IPC: C07D241/52
Filed: 1972-04-24
Abstract: 1374360 Preparation of quinoxaline-di-N- oxide derivatives PFIZER Inc 24 April 1972 [6 Aug 1971] 18984/72 Heading C2C The compounds I  in which X is 6- or 7- H, Cl, Br, CH 3 , CH 3 O or CF 3 ; are prepared by reaction of a compound II in which R is 1-4C alkyl, with ethylene glycol in the presence of oxygen and, as catalyst, Ca(OH) 2  or Ba(OH) 2  at 30-50‹ C.
Patent GB-1342676-A (GB)
Title: Needling machines for producing patterns on webs of fabric
IPC: D04H18/02
Filed: 1971-06-04
Abstract: 1342676 Needled fabrics; patterning felt by needling O ANGLEITNER 4 June 1971 [5 June 1970] 19040/71 Headings D1R and D1S A pattern is produced on a web by passing it through a needling machine having needles which are reciprocated so as to penetrate into and be withdrawn from the web. The. web is supported upon a table which can be moved vertically to remove the web from contact with the needles board, the movement of the table and the movement of the means for horizontal transport of the web being controlled independently. If the web is stationary whilst the needles are reciprocated, each needle produces one point in the pattern. If the web is moved slowly whilst the needles are reciprocated each point produces a line. Two webs of different colours may be superposed before needling. After each pattern has been produced the web is lowered then moved horizontally a distance equal to the pattern width. The process may be performed automatically by driving the web transport rolls by means of a drive chain bearing stop bosses separated by the pattern length. As each boss touches a microswitch the drive motor is stopped and the web supporting surface raised into the needling position. If a line pattern is required the drive chain is moved very slowly whilst the drive motor is stopped by the movement of two sprockets over which the drive chain passes. Alternatively the stepwise advance of the web is controlled by a photoelectric device.
Patent GB-402878-A (GB)
Title: Improvements in ash removing devices for underfeed stokers
IPC: F23J1/00
Filed: 1932-07-05
Abstract: 402,878. Furnace grates. IRON FIREMAN MANUFACTURING CO., 984, East 17th Street, and CARTER, H. C., 1424, Reed College Place, both in Portland, Oregon, U.S.A. July 5,1932, No. 19044. [Class 51 (i).] Ashes are removed from an underfeed stoker grate of the fire-pot type by a rotatable ring 146 located beneath the outer margin of the burning fuel and riding upon a stationary table 145, the table and ring co-operating to remove the ashes directly from beneath the burning fuel to a point of discharge. The ring has a series of pockets 147 which carry the ashes around to an opening 152 in the table through which they fall into a chute 154. The retort 134 is fed with fuel by a worm 135 and carries a tuyere section 139 with air outlet openings 140-143 communicating with the air chamber 138. The annular table 145 is supported by brackets 144 and the ring 146 carries rollers 148 running on the outer wall of the tuyere section. A rim 150 on this wall projects over the top of the ring. The ring is rotated intermittently from the shaft 136 of the feed worm by a Geneva motion 161, 158 engaging teeth 159 on the depending flange 160 of the ring. A ring 155 of refractory material rests upon the outer rim of the table 145.
Patent GB-220783-A (GB)
Title: Improvements in or relating to brushes connected with dust and like collectors
IPC: A47L11/33
Filed: 1923-07-25
Abstract: 220,783. Hall, D., Kay, J. H., and Hall & Kay, Ltd. July 25, 1923. Brushes, arrangement of bristles in; wire brushes; bristles, fixing; bristles, bridles for.-A brush for clearing dust, &c. from dust collectors, particularly those employed in machines for gassing yarns comprises a frame consisting of side members 4, provided with bristles for sweeping the top of the box, and end members with detachable bristles 7 adjustable angularly and laterally. As shown, each side member consists of two lozenge-shaped parts clamped together by screws and formed with recesses to hold looped pieces of stranded wire cord 5. The ends of the side members are united by screw-threaded rods 8 on which are mounted pairs of discs 11. These discs have their opposed faces recessed to receive looped portions of stranded wire tufts which are clamped in place by nuts 14. Some of the tufts are stiffened by metal sleeves 9. The brush is adapted to be drawn to-and-fro along the box and is supported on runners 15 formed of stranded wire cord.