baber/WOPTO huggingface dataset:
Patent GB-503488-A (GB)
Title: Improvements in or relating to the production of zinc sheet and foil
IPC: B21B1/38
Filed: 1937-10-04
Abstract: 503,488. Alloys. TAINTON, U. C. Oct. 4, 1937, No. 26850. Drawings to Specification. [Class 82 (i)] [Also in Group XXII] Zinc sheet or foil is made from an alloy of substantially pure zinc with 0À05-0À1 per cent of manganese or nickel. The original ingot, plate, &c. consisting of zinc may be coated with e.g. aluminium, cadmium, or tin so as to produce a coated foil.
Patent GB-683094-A (GB)
Title: Improvements in and relating to method of producing vanillin, acetovanillone and other oxidation products
IPC: C08H5/02
Filed: 1950-11-03
Abstract: Vanillin and other oxidation products are obtained from lignosulphonic materials as in Specification 683,093 by the same process, but preceded by a preliminary dilution of the commercially-obtained effluents to a strength of 10-70 gms. lignin equivalent per litre, Examples and a table show the gain in yield produced by certain dilutions.
Patent GB-728307-A (GB)
Title: Improvements in or relating to stoppers
IPC: B65D39/00
Filed: 1952-10-27
Abstract: 728,307. Stoppers. BROWN, W. H., and BROWN, L. E. Oct. 23, 1953 [Oct. 27, 1952], No. 26998/52. Class 125 (3). A hollow plug stopper of polyethylene has a tapered plug 10 with annular ridges 13, open and with a flange 12 at the top and having an apertured web 11 at the bottom, a thick disc 14 connected by a stem 17 to a thin annular portion 15 and central portion 16 fitting within the plug so that portions 15 and 16 cover the aperture. A cap 18 of polyethylene or thermosetting resin is a push fit in plug 10 and a projection 19 engages disc 14. A modification has fine holes through disc 14 and cap 18 to allow escape of steam. Another modification employes a helical spring to urge the cover plate against the web 11.
Patent GB-665952-A (GB)
Title: Improvements in or relating to fault locating arrangements for electric carrier current communication systems
Inventor: JACOBSEN BENT BULOW
IPC: H04B17/40
Filed: 1949-10-21
Abstract: 665,952. Testing; locating faulty repeaters. STANDARD TELEPHONES & CABLES, Ltd. Oct. 21, 1949, No. 27089/49. Class 40 (iv). Signals between two attended stations pass through unattended repeaters having automatic volume control operated by a pilot current which suffers an abnormal change in level in the event of a fault, this change conditioning at least one of the unattended repeaters to send back a characteristic frequency to one of the attended stations in response to the transmission from the attended station of a sequence of characteristic frequencies. The invention is described with reference to a two-way transmission system having West- East and East-West coaxial cables 16, 17, Fig. 2, provided with repeaters 1, 3, 4, 5, 6, 2, Fig. 1. The repeaters are grouped into four unattended repeaters 3 ... 6 separated by attended repeaters 1, 2. At each repeater, Fig. 2, the cables 16, 17 are connected to normally shortcircuited transformers 22, 23 feeding a filter 21 sharply tuned to the characteristic frequency associated with the repeater; the filter 21 feeds an amplifier 29 controlling a relay 30. A fault in one of the repeaters of the group results in an abnormal change in the current in pilot line 7 or 8, Fig. 1, to actuate the relays 9 or 10 to complete the circuit of relays 26, 27, Fig. 2, at all the repeaters of the group to remove the short-circuits from the transformers 22, 23 and provide couplings between cables 16, 17 tuned to the characteristic frequencies of the associated repeaters. Rectifiers 11, 12 prevent a fault in one group actuating the relays of other groups. The operator at the terminal station is advised of a fault by means not shown, and locates the fault by transmitting successively the characteristic frequencies of all the repeaters; he receives no response until he reaches the frequencies associated with the group containing the faulty repeater; thereafter each frequency will be transmitted back until the faulty repeater is reached, no response being received from it or any succeeding repeater. If the first or control station of a group is faulty, testing by transmission from the other station may be employed. Having located the faulty repeater, a strong signal at the frequency associated with the preceding repeater is transmitted to actuate relay 30 to energize relay 34 which replaces the faulty repeater by spare apparatus. A break in the coaxial cable will be roughly located since no response will be received from any station beyond the break; a failure in the power supply at any repeater will render both the amplifiers ineffective and no response to the associated frequency would be obtained from either terminal station. The repeaters in one group may be associated with frequencies used for other groups, the groups being distinguished by a second characteristic frequency. Specification 657,028 is referred to.
Patent GB-776267-A (GB)
Title: New substituted phenanthridine compounds
Inventor: SHORT WALLACE FRANK
IPC: C07D401/12
Filed: 1953-10-02
Abstract: The invention comprises phenanthridines of the general formula: <FORM:0776267/IV(b)/1> wherein R2, R3 and R4 represent alkyl groups which may be the same or different, R1 represents an alkyl, aralkyl or aryl group which may be unsubstituted or may carry on amino or nitro group as a substituent, and the preparation thereof by condensing a phenanthridine of the general formula: <FORM:0776267/IV(b)/2> wherein R1 and R2 have the above significance and Y represents an anion which may be identical with X, with a halopyrimidine of the general formula: <FORM:0776267/IV(b)/3> wherein A represents a halogen atom, R3 and R4 have the above significance, and Z is an anion which may be identical with X, and if Y and Z are not identical with X, the product is treated to replace Y and/or Z by X.  In the case where R1 represents a nitroaryl group, the 9-nitroaryl substituted phenanthridine product of the above general formula may be reduced to form a 9-aminoaryl substituted phenanthridine product of the above general formula.  The condensation may take place in an aqueous medium and the presence of an acid is advantageous to accelerate the reaction.  In the examples: (1) 3 - (21 - amino - 61 - methylpyrimidyl - 41 - amino) - 9 - methylphenanthridine 10,11-eimethiodide is prepared by reacting 3-amino-9,10-dimethylphenanthridinium bromide and 2 - amino - 4 - chloro - 6-methylpyrimidine - methiodide and the reaction product is treated with potassium iodide in boiling water; by treatment with silver methane sulphonate the corresponding 10,11-dimethomethane sulphonate is obtained; (2) 3 - (21 - amino - 61 - methylpyrimidyl - 41-amino) - 9 - phenylphenanthridine 10,11 - -di methiodide and the dimethomethane sulphonate thereof are prepared as in (1); (3) 3-(21-amino-61 - methyl - pyrimidyl - 41 - amino) - 9 - p-nitrophenyl - phenanthridine 10 : 11 - dimethiodide is prepared by reacting 3-amino-10-methyl - 9 - p - nitrophenylphenanthridinium bromide and 2 - amino - 4 - chloro - 6 - methylpyrimidine 1-methiodide and the reaction product is heated with aqueous potassium iodide; this compound is converted into 3-(21-amino-61-methyl - pyrimidyl - 41 - amino) - 9 - p - aminophenylphenanthridine 10 : 11 - dimethiodide by reduction using a sludge prepared by mixing saturated solutions of ferrous sulphate and barium hydroxide, and by treatment with silver methane sulphonate the 10 : 11-dimethomethane sulphonate thereof is obtained.
Patent GB-1187656-A (GB)
Title: Railway Vehicle Retarder Apparatus
IPC: B61K7/08
Filed: 1967-06-13
Abstract: 1,187,656. Railway track brakes. WESTING- HOUSE AIR BRAKE CO. 13 June, 1967 [24 June, 1966], No. 27140/67. Headings F2E and F2F. Railway vehicle track retarder apparatus includes hydraulic means for operating a vehicle retarding member, the hydraulically operable means being responsive via a transducer to pneumatic control means. Each of a number of weight proportional wagon retarders OU is operable by means of a corresponding hydraulic ram R which is connected via a corresponding control valve 21 to a common pneumatic-hydraulic transducer 26<SP>1</SP>. Each control valve 21 comprises a two-way valve which is normally biased by means of a spring 24 to a closed position, but operable by means of a corresponding solenoid 22, shunted by a non-return valve 23. Transducer 26<SP>1</SP> is fed with air from reservoir 31 and compressor 30, via two-position valve 32 which is biased by spring 34 so that transducer 26<SP>1</SP> is normally in communication with reservoir 31; valve 32 may, however be reversed by energization of solenoid 33, putting transducer 26<SP>1</SP> into communication with an exhaust port instead. In braking position, i.e. solenoids 22 de-energized, solenoid 33 may be energized to put transducer 26<SP>1</SP> into communication with the exhaust port, since the non-return valves 23 prevent release of the hydraulic pressure in rams R. Energization of any of the solenoids 22 then permits release of the corresponding wagon retarder as soon as a wheel passes through it, the retarders being balanced so as to remain released: the brake can. however be rapidly re-applied by deenergization of solenoid 33. In a modification (Fig. 1, not shown) a separate pneumatic hydraulic transducer serves each ram. The weight proportional wagon retarders OU are described in Specification 1,187,657.
Patent GB-246940-A (GB)
Title: Improvements in or relating to fasteners for doors, windows, shutters or the like
IPC: E05B65/08
Filed: 1924-11-14
Abstract: 246,940. Tonks (Birmingham), Ltd., (Beauchamp, H.). Nov. 14, 1924. Catches, spring; striking- plates for latches. - A pivoted latch a for doors is locked by a pivoted arm e acted on by a spring g, which allows the arm e to be moved to unlocking position by the latch as the door is closed should the arm assume a locking position before the door is closed. The arm mav be operated by a key from outside and bv a thumb piece from inside. When used on sliding doors the latch has a hook-shaped end b engaging a projection d. Trigger mechanism as described in Specification 168,037 may be used to hold the latch in an intermediate position, and at the point of co-operation of the trigger with the arm undercut surfaces may be provided, whereby the trigger cannot be depressed unless the arm is depressed at substantially the same time. The striking plate may be provided with a projection to depress the arm in advance of the trigger.
Patent GB-323197-A (GB)
Title: Improvements in and relating to bolt sockets or fixing blocks for use in concrete structures
IPC: E04B1/41
Filed: 1928-09-22
Abstract: 323,197. Collins, H. W. J., and Denton, G. F. Sept. 22, 1928. Screw sockets.-Screw or bolt sockets 4 or nuts 3 to be embedded in concrete for the attachment of fittings are temporarily secured by the screws to a corrugated metal strip 2 which acts as a permanent reinforcement and is detachably secured to the moulding board 5. When the concrete has set and the board 5 is removed, the screws may be withdrawn. Plain protecting sockets 6 may be placed over the nuts. Where gaps 10 occur, a channel-shaped member 8 is placed over the corrugation, and the hole 2<a> may be elongated for adjustment of the screw and be protected by a cover plate. Transverse metal strips 9 bent to channel shape may be secured to the main strip 2, and in some cases may space the strip from the mould.
Patent GB-1169837-A (GB)
Title: Counting Mechanism
IPC: G06M1/30
Filed: 1968-06-10
Abstract: 1,169,837. Counters. VEEDER INDUSTRIES Inc. 10 June, 1968 [14 June, 1967], No. 27485/68. Heading G4D. Each numeral wheel 80 mounted freely on a shaft 20 with a conventional gear wheel has a pin-and-slot connection 90, 91 to a further gear-wheel 82 mounted on an eccentric 92 fixed to the shaft 20. At transfer the gearwheel 82, as shown more clearly in Fig. 9, because of its eccentric mounting, makes a bigger angular movement than the associated numeral wheel. For resetting the shaft 20 and eccentric 92 are rotated through 160 degrees, Fig. 5, so withdrawing the gear-wheel 82 from engagement with the related mutilated transfer pinion 85. Towards the end of this movement a cam (65), (Fig. 3), rocks a shaft 42 to press a yoke 54 against heart cam 60 in known manner. A projection 96 on the hub of gearwheel 82 is arranged to catch on a sprung pawl (Fig. 6) if the yoke 54 were to hit the dead-centre of cam 60, whereby the cam is pulled to one side. A full-stroke device (48, 50), (Fig. 3), ensures that resetting and restoring to counting condition are properly completed. The resetting operation also involves disconnection of a drive clutch (30, 32), (Figs. 1, 2), by a profiled collar (24). Modifications are described.
Patent GB-667145-A (GB)
Title: Improvements in and relating to the production of alumina
IPC: C01F7/428
Filed: 1949-10-26
Abstract: Alumina is produced by hydrolyzing an aluminium alkoxide, e.g methoxide, ethoxide, propoxide or butoxide with acqueous ammonia or dilute acqueous acid, e.g. acetic acid, at room or elevated temperature.  The secondary butoxide, which is liquid, is particularly suitable.  The product may be converted to g -alumina by heating at 450 DEG C. for 15 hours.  The latter may be impregnated with suitable salt and treated to produce a mixed catalyst.  If desired, the aluminium alkoxide may be absorbed in silica gel, pumice, kieselguhr, &c. prior to hydrolysis.  The production of the alkoxides is described.
Patent GB-1121757-A (GB)
Title: Teat cup liner
IPC: A01J5/06
Filed: 1966-06-21
Abstract: 1,121,757. Teat cups. ALFA-LAVAL A.B. 21 June, 1966 [24 June, 1965], No. 27690/66. Heading A1M. The mouth of a teat cup liner has a (substantially) semi-circular inner surface 7 surrounding a hollow space 5, the radius R of the surface being so related to the largest diameter B of the tubular part 2 of the liner that the axial depth A of the space 5 is approximately equal to, but not greater than, half the diameter B.
Patent GB-320743-A (GB)
Title: Improvement connected with trawling gear
IPC: A01K73/05
Filed: 1928-09-27
Abstract: 320,743. Hughes, T. T. Sept. 27, 1928. Trawling-gear.-A water Kite for raising the upper part of a trawl net comprises a V-shaped structure B provided with a float to keep its forward end raised and has on the inside of each wall of the V-shaped structure a curved tube C directed rearwardly and covering an aperture A in the board. The tube is contracted away from the board and may be of circular or D-section, the flat surface being corrugated.
Patent GB-163276-A (GB)
Title: Improvements in induction furnaces
IPC: H05B6/18
Filed: 1920-10-01
Abstract: 163,276. Heraeus Ges., W. C., Rohn, W., and Stahlwerke R. Lindenberg Akt.-Ges. May 19, 1920, [Convention date]. Induction furnaces.-In an induction furnace comprising a crucible A surrounded on all sides by a primary coil B, the coil and crucible are surrounded on all sides by the transformer core which may comprise ring-shaped sheet-metal plates C arranged in either of the ways shown in Fig. 2. The winding B is formed of a tube through which water, air or oil is passed for cooling. The space between the primary winding and the channel A is filled with refractory material. The furnace may be placed in an airtight chamber which can be filled with any desired gases and the melting and casting processes carried out under any condition of pressure. In the Specification as open to inspection under Sect. 91 (3) (a) the core C may be formed of any shape and arranged in any way or the primary coil may be of any shape and arranged in any way. This subject-matter does not appear in the Specification as accepted.
Patent GB-700430-A (GB)
Title: Improvements relating to the formation of articles of material such as plaster
IPC: B28B23/00
Filed: 1950-02-09
Abstract: 700,430. Moulds for casting building slabs &c. RICHARDS, W. H. April 28, 1950 [Feb. 9, 1950], No. 27946/51. Divided out of 700,402. Class 87 (2) Relates to components for buildings and is particularly concerned with moulds for casting that part of a panel which separates its inner and outer facings, this part being referred to as a core and described in Specification 700,402. Material such as plaster is cast in a mould consisting of slots 42 defined by a flexible lining 34 resting on a rigid backing 26 in which are wider slots 32 which diverge slightly upwards, the cast article is separated from the backing carrying the lining with it, and the lining is then separated from the article. The lining is first made by bringing a replica 35 of the article close to the backing and injecting, e.g. warm vinyl chloride between the replica and the backing. The backing is a metal casting formed with inverted boxes 30 which between them define the slots 32. The replica includes a top cover 36 and the vinyl chloride fills the clearance between the cover and the top of the boxes 30, the replica being located by side strips 38, 40 carried by brackets 46 which are are adjustable in position. When the lining has set it is peeled off the replica and replaced on the backing. The replica is such that slots of the shape shown at 42 are left, and boundary slots of the shape shown at 44. Reinforcement is laid in the slots 42, the position of the strips 40 adjusted to the rectangular size of the panel required, and the core cast by pouring gypsum plaster into the slots until they are just full. The lining is peeled off the core when set, as it was peeled off the replica, and used repeatedly on the backing to cast cores in quantity. The backing may be in the form of wooden blocks detachably secured to a plate 1 in which case its shape may be varied. The Provisional Specification mentions that the rigid backing 26 may be built up from boxes with inter-engaging flanges, that the replica 35 and cover 36 may be integral, and that the strips 40 may be moved by power; and contains fuller descriptive matter relating to the panels eventually embodying the cores moulded by the invention. Specification 700,401, [Group X], also is referred to.
Patent GB-756124-A (GB)
Title: Improvements in or relating to devices for automatically adjusting the angle of inclination of headlamp beams on vehicles
IPC: B60Q1/115
Filed: 1954-09-30
Abstract: 756,124. Retractive switches. BOSCH GES., R. Sept. 30, 1954 [Oct. 1, 1953], No. 28167/54. Addition to 724,940 [Group XI]. Class 38(5) [Also in Group XI] A switch in the electrical heating circuit of a bimetal strip operated for changing the inclination of a vehicle head lamp beam (see Group XI) when the mechanical load on the vehicle changes, comprises two mutually insulated contact members 72, 73 secured to the chassis parts 67 supported by a spring 66 on the rear wheel axle 65 and a contact bridge 71 supported by a spring 74 tending to raise the bridge from the members 72, 73 and connected to a butt strap 77 secured to the axle 65 by a draw member 75 and draw spring 76, the springs 74, 76 being so adjusted that the bridge 71 does not connect the contacts 72, 73 while the vehicle is normally loaded but when the load is reduced, contacts 72, 73 are raised and are connected by the bridge 71
Patent GB-755831-A (GB)
Title: Improvements in or relating to extensible shores and struts
IPC: E21D15/24
Filed: 1952-11-08
Abstract: 755,831. Shores. BURTON, J. Nov. 2, 1953 [Nov. 8,1952],No. 28190/52. Class 20(2). The outer and inner parts 10, 14 of a telescopic trench shore, having thrust plates 12, 15 respectively, are provided at their inner ends, with inwardly and outwardly extending flanges 21, 22 respectively which are adapted to engage to prevent complete separation of the parts. The prop is extended by a nut 18 on a screw thread on the outer part engaging a pin 17 in one of a number of holes 16 in the inner part.
Patent GB-950039-A (GB)
Title: Refrigeration method and apparatus for freezing ice-cream and the like
IPC: A23G9/22
Filed: 1962-07-23
Abstract: 950,039. Refrigerating. CHERRY - BURRELL CORPORATION. July 23, 1962 [July 28, 1961], No. 28193/62. Heading F4H. In a refrigerating system, particularly for an ice-cream or like freezer, liquid refrigerant is caused to flow across the heat transfer wall at a relatively high velocity of at least two feet per second and at a pressure sufficient to prevent evaporation occurring until the refrigerant has passed beyond the heat transfer wall. Liquid refrigerant in a system including a compressor 10, a condenser 14 and a receiver 18 is admitted through a level control valve 24 into a surge tank 22 and is circulated at relatively high velocity therefrom through an ice-cream freezer 28 by a pump 32. The pressure of the circulating liquid is maintained either by a restriction in the line 36 or by the restricted bore of the line 36 itself at a value such that evaporation occurs only in the surge tank 22 or at some point in the line 36. By this means the deposition of an oil film on the heat transfer surface is prevented as is also the formation of vapour bubbles so that a high rate of heat transfer is attainable. A hot gas connection 74 with solenoid-operated valve 76 is provided, the valve 76 being controlled in dependence upon the freezer refrigerant outlet temperature and when open allows for the defrosting of the freezer. The latter comprises a cylindrical freezing tube 54 surrounded by an annular jacket in which the refrigerant is constrained to flow spirally around the tube 54 by a spiral baffle 58. A rotatable dasher in the tube 54 scrapes the interior surface of the tube in addition to agitating gently the ice cream mixture which flows through the tube in countercurrent to the refrigerant. Specification 922,594 is referred to.
Patent GB-263590-A (GB)
Title: Gear wheel pump
IPC: F04C2/08
Filed: 1925-11-09
Abstract: 263,590. Bechler, A. Nov. 9, 1925. Addition to 243,335. Movable-abutment type; regulating pumps; inspection of internal parts, facilitating. -In a gear wheel pump as claimed in the parent Specification, the distance between the centres of the pinions is varied by turning a flat casing carrying one of the pinions about a centre other than that about which the complementary pinion rotates. The casing 1, closed by a block 3 and cone 2, carries the pinion 8 and has lugs 16 against which abut the adjusting screws 14 carried by bosses 15 on the stationary block 3. The fixed pinion 9 carrying the driving shaft 10 and pulley 11, rotates in a segment 12 connected to the cover 2 by a pin 13. To regulate the flow of the pump, the casing 1 is turned about the segment 12, by the screws 14, varying the distance between the centres of the pinions. The cover 2 is secured by a clamping screw 6 working in a cross-piece 5 secured to the block 3, and can be removed for cleaning and inspecting the pinions.
Patent GB-1580204-A (GB)
Title: 2-cyanohexanoic acid derivatives
IPC: C07C253/00
Filed: 1976-07-07
Abstract: The compounds of the general formula I in which the symbols have the meaning given in Claim 1 are suitable as intermediates for the preparation of insecticidally active compounds. These compounds are prepared by reacting a compound of the general formula II with a compound of the general formula III in the presence of a catalyst and in an inert solvent. <IMAGE>
Patent GB-423617-A (GB)
Title: An improved appliance for gripping and severing paper made up in roll form
IPC: B65H35/00
Filed: 1933-10-13
Abstract: 423,617. Tearing paper. EAGLE, H., Killingworth House, Killingworth, Northumberland. Oct. 13, 1933, No. 28285. [Class 31 (i)] A device for cutting off paper from a roll c and preventing self-winding of the roll, consists of a clip a in the form of a flat open or closed metallic tube having an upper sharp cutting edge s, and adapted to be inserted into the roll so as to grip two or more of the outer plies of the paper. In a modification, the cutting edge s may be provided on a flanged portion of the clip a.