baber/WOPTO huggingface dataset:
Patent GB-898566-A (GB)
Title: Improvements in and relating to fasteners
Inventor: FERNBERG ERIC BIRGER
IPC: F16B9/02
Filed: 1958-10-07
Abstract: 898,566. Clips; locking bolt like pins. F.T. PRODUCTS Ltd. Oct. 7, 1959 [Oct. 7, 1958], No. 32012/58. Classes 44 and 89(1). [Also in Group XVIII] An assembly suitable for holding an insignia plate 18 formed with studs 19 to a panel 21 of an automobile, includes fasteners 10 each in the form of a single strip of resilient material whose limbs 12, 13 have a radius of curvature near a web 11 corresponding to that of the studs 19, 20 and at their free ends either greater or smaller than that of the stud to give a friction grip on the panel, stud, or both. The fasteners may be modified to include stepped or dimpled limbs or limbs having cut away portions (Figs. 4-8 not shown).
Patent GB-1235263-A (GB)
Title: Improvements relating to industrial boilers
Inventor: NORTHCOTE REGINALD DENNIS
IPC: F22B7/16
Filed: 1969-06-26
Abstract: 1,235,263. Multi-pass boilers. G.W.B. BOILERS Ltd. 22 June, 1970 [26 June, 1969], No. 32216/69. Heading F4B. A double or tripie pass shell boiler 10 has located in its combustion tube 11 a refractory block 19 which both acts as a heat store, and diverts the combustion products from burner 12 away from the axis of the combustion tube. The block 19 is formed from an assembly of recessed triangular-shaped sub-blocks 20 (Fig. 3, not shown) held between radial lugs 30 on a tie bar 21. Chamfered edges 22 on the subblocks locate them within the tube 11 with the uppermost of their triangular sides horizontal.
Patent GB-1318584-A (GB)
Title: Method of and apparatus for the introduction of hardening building  material into a mould
IPC: B28B13/02
Filed: 1970-07-03
Abstract: 1318584 Casting concrete &c SILER AG 3 July 1970 [3 July 1969] 32306/70 Heading  B5A Concrete or the like is fed in strip form into a mould 34 by one or more relatively moving feed devices located above it, each device comprising an endless conveyer 21 fed from a silo 23 and delivering a strip of concrete to a hopper 36 supplying the mould. The strip thickness is regulated by an adjustable vibrated flap 24 pivoted to the silo and its width is regulated by pivoted flaps 27 with pivoted ends 32. The conveyer is driven from a rear roller 30, the front roller of which is relatively small. The silo includes a vibrated assembly 38. Means for the automatic control of the quantity of material supplied to the hopper, flaps and conveyer are provided. A succession of strips may be fed to the mould and located side-by-side, and the mould may be moved simultaneously or alternately with the feed devices.
Patent GB-789704-A (GB)
Title: Piperazine derivatives and their preparation
IPC: C07D295/084
Filed: 1955-11-11
Abstract: The invention comprises piperazine derivatives of the formula: <FORM:0789704/IV (b)/1> and their acid addition and quaternary ammonium salts (R1 and R2 are monocyclic alicyclic groups including cyclohexyl and cyclohexenyl; monocyclic aromatic groups including phenyl and halophenyl; monocyclic heterocyclic groups including thienyl and pyridyl, or higher alkyl groups (6-14 carbon atoms) including hexyl; R3 is hydrogen, lower alkyl (1-5 carbon atoms), benzyl or lower alkyl substituted benzyl); also a process for their preparation by reacting an R1 halide with magnesium to form the Grignard reagent R1Mg halide and reacting this with a ketone of the formula: <FORM:0789704/IV (b)/2> decomposing the resulting Grignard complex, and if desired when the base so obtained contains an aromatic group, subjecting it to hydrogenation to reduce the aromatic group to an alicyclic group, and/or if desired forming a salt of the base.  Specified quaternizing agents include methyl iodide, methyl bromide, methyl sulphate, methyl p-toluene sulphonate, benzyl bromide, and ethyl chloride; suitable salt-forming acids are sulphuric, hydrochloric, phosphoric, levulinic, mucic, acetic and tartaric acids.  In examples: (1) N-methyl-N1-phenacylpiperazine in ether is added dropwise to ethereal cyclohexyl magnesium bromide and the reaction mixture decomposed with aqueous NH4Cl to yield N-(b -cyclohexyl-b -hydroxy-b -phenyl) ethyl - N1 - methyl - piperazine, characterized (2)-(4) as its dihydrochloride hemihydrate, methiodide, and methosulphate; N - methyl - N1 - phenacylpiperazine is similarly reacted; (5) with phenyl magnesium bromide to give N-(b  : b -diphenyl-b -hydroxy) ethyl - N1 - methylpiperazine, characterized as its dihydrochloride; and (6) as its methosulphate; (7) with p-chlorophenyl magnesium bromide to give N - [b  - (p - chlorophenyl) - b -phenyl - b  - hydroxy) ethyl - N1 - methylpiperazine, its di-HCl, and (8) its methiodide; (9) with the Grignard reagent from 2-bromothiophene to yield N-(b -hydroxy-b -phenyl-b -[2-thienyl]) ethyl-N1-methylpiperazine; and (10) with the reagent from 2-bromopyridine to give N - (b  - hydroxy - b  - phenyl - b  - [2 - pyridyl]) ethyl-N1-methylpiperazine; (11) the product of (5) is hydrogenated over a platinum catalyst to give N - (b  : b  - dicyclohexyl - b  - hydroxy) ethyl - N1 - methylpiperazine; other compounds obtainable by the process of the invention include N - (b - cyclohexen - 1 - yl-b  - phenyl - b  - hydroxy) ethyl - N1 - methylpiperazine; N - (b ,b  - diphenyl - b  - hydroxy) ethyl - piperazine; N - (b ,b  - diphenyl - b  - hydroxy) - ethyl - N1 - benzylpiperazine and N - (b  - n - hexyl - b  - hydroxy - b  - phenyl) ethyl-N1-methylpiperazine.  The starting material N-phenacyl-N1-methylpiperazine is prepared by the dropwise addition of phenacyl bromide in toluene to a refluxing mixture of N-methylpiperazine, sodium carbonate and xylene.  Triethylamine may replace sodium carbonate as the base.
Patent GB-1449216-A (GB)
Title: Installation of hollow towers
IPC: E02D27/32
Filed: 1974-07-22
Abstract: 1449216 Pile drivers SIR B G WHITE W E GELSON A H BECKETT J W T TAPP and G B BRITT [trading as SIR BRUCE WHITE WOLFE BARRY & PARTNERS] 19 Nov 1974 [30 Nov 1973 22 July 1974] 55738/73 and 32416/74 Heading B3H [Also in Division El] An offshore tower 10 is driven into an underwater substrate by a drop hammer 24 impacting against an anvil 20. Initially the hammer 24, which has a waterfilled ballast chamber 32 and a buoyancy chamber 30, is held at the top of the tower by latches 34 and after striking the anvil 20 is raised by either jacking by three jacks 92 or by flooding the tower above bulkhead 22. To raise the water level in the tower above the surrounding water level a pump 44 is used which also empties the tower. In a preferred embodiment the hammer is of the same order of length as the distance from the top of the tower to the anvil, e.g. 200 metres. It is made up of nine cylindrical sections of gradually greater wall thickness from top to bottom, longitudinally spaced flanges 60 with vent holes (not shown) and at its upper and lower ends has three circumferentially spaced, vertically extending columns of rings 72 which are engaged by latches 84 having release arms 86 and by jacks 92 when being raised.
Patent GB-720254-A (GB)
Title: Electric plug
IPC: H01R13/595
Filed: 1952-12-22
Abstract: 720,254. Two-part couplings. SCHULER, X. Dec. 22, 1952 [Jan. 3, 1952], No. 32462/52. Class 38 (1). A plug comprises a pair of insulating parts 20, 21, Fig. 4, which are held together by a screw 70, pins 32 being held captive between them. The act of screwing the parts together forces a conductor 101 passed through an aperture 321, Fig. 5, in each pin and resting on a bearing surface 212 around the pin, into engagement with a point 322 formed on the pin. Ribs on parts 21 cause kinks in the conductors to prevent tensile stress being applied to the connections to the pins.
Patent GB-617682-A (GB)
Title: Improvements in skip hoists
IPC: B66B17/26
Filed: 1945-11-30
Abstract: 617,682. Hoists with guided skips; winchregulating apparatus. HOWARD, A. M., and HOWARD, W. Nov. 30, 1945, No. 32472. [Classes 78 (iii) and 78 (v)] A portable skip hoist constructed as an independent unit comprises a single guide rail 1, a saddle 37 adapted to travel along the rail and a skip 31 pivoted to the saddle so as to tip and discharge its contents at the upper limit of travel. In the particular apparatus shown, the rail 1 is of I-section, and the saddle 37 slides on its upper flange and is steadied by rollers 38 bearing against the central web of the rail. The skip is pivoted at 34 to the saddle 38, is attached by means of a bridle 41 to the cable 14 of a winch 21, and is maintained in the normal full-line position shown by means of a shoe 44 which bears against the rail 1. As the skip approaches the upper end of the rail, the shoe passes over a rounded nose-piece 45 and the skip tips about its pivotal connection 34 to discharge its contents. Operation is continuous and automatic; as the skip tips and discharges, the bridle 41 rocks a switch arm 51 to switch-off the winch motor, a spring 52 secured to the bridle is compressed against the top pulley bracket 12 and throws the skip back, the skip then returning down the rail under gravity until it reaches a lower end stop 47. The winch cable is taken round a pulley 28 on a lever 27 pivoted at 25. When the skip comes to rest, the cable slackens, causing lover 27 to fall and apply a brake band 24 to the winch to prevent excessive unwinding of the cable. The lever 27 also operates a switch 29 to restart the winch motor, after a time delay, for the next upward run of the skip. An upper pulley bracket 8 has slots 55 for engaging over the edge of a hopper 54 being filled by the skip. The apparatus may, however, be supported on shear legs attached to studs 63. The lower end of the rail is carried on swivelling road wheols 6, and is slotted at 68 to enable an extension piece to be applied when it is desired to operate the apparatus from a pit below ground level. The Specification also mentions the use of a continuously-running internalcombustion engine in place of an electric motor for driving the winch, the switches 29 and 51 being replaced by clutch-operating members.
Patent GB-358751-A (GB)
Title: Improvements in and relating to foundry moulding machines of the jarring or jolting type
IPC: B22C15/10
Filed: 1930-10-29
Abstract: 358,751. Moulding-machines. MACNAB, T. P., 150, Holborn, London. Oct. 29, 1930, No. 32528. [Class 83 (i).] A jar-ram moulding machine having a large table a is provided with an integral or attached extension b on the rising anvil d so that the table may be of light construction. In the case of a large upper table one or more secondary tables may be arranged between the table a and anvil d and attached to either or some may be attached to each.
Patent GB-300278-A (GB)
Title: Improvements in or relating to coke-ovens
IPC: C10B5/02
Filed: 1928-11-08
Abstract: 300,278. Totzek, F., (Assignee of Uppers Akt.-Ges., H.). Nov. 10, 1927, [Convention date]. Cooke ovens.-In a vertically-flued coke oven having a pair of end to end regenerators beneath each oven chamber each regenerator 13, 15 communicates with alternate heating flues b or a in the part of the heating-wall directly above it through passages 25, 20, and with the flues in the remainder of the heating wall through extension flues 22, 29 and passages 21, 27. The flues 22, 29 are disposed immediately above the regenerators, and they cross one another in the transverse dividing-wall 17.
Patent GB-1214337-A (GB)
Title: Automatic device for transmitting discrete pulse series
Inventor: REEFMAN PIETER DAVID CORNELIS
IPC: H04M1/278
Filed: 1968-07-09
Abstract: 1,214,337. Card readers. NETHERLANDS POSTAL & TELECOMMUNICATION SERVICE, DIRECTOR GENERAL OF. 9 July, 1968 [26 July, 1967], No. 32765/68. Heading G4M. [Also in Division H4] An automatic dialler has a slot for the reception of a dialling card and an electromagnet which is energized when the card is inserted and makes contact with electric terminals on the card. As shown, the card is of insulating material and has orthogonal sets of conductive strips 28 and 29 on opposite faces. The strips may be selectively interconnected at the crossing points by inserting fixed or removable connecting elements in perforations at those crossing points. In the particular card shown and working from the left of the Figure, the first three strips 29 store digits 0, 2 and 0, respectively, the next strip does not have a connecting point and is used to stop the apparatus until dial tone is again returned after the first three digits have been dialled, the next six strips store the digits 2, 0, 3, 0, 4 and 0, respectively, and the next strip connects to an end of dialling code strip E of the set 28. The last eleven strips 29 connect along a diagonal line as indicated with the strips 28 in the same manner for each card and act as output conductors with terminals in line (along the bottom of the figure) with input terminals on earlier mentioned strips 29. The dialler has a microswitch in the bottom of the slot positioned to be energized when a card is inserted and is arranged to energize the electromagnet bringing a bank of contacts into engagement with the terminals on the card. The input terminals are then selected in succession by the wiper of a stepping switch and at each step a capacitor charged to a predetermined level is discharged into that input terminal. It re-appears at that one of the output terminals which is associated with the corresponding digit. It is attenuated to a level characteristic of that digit by a corresponding value resistor 30 connected to that output and is used to partially saturate a magnetic core of square loop material. Between each step of the wiper the core is driven back to its original state of magnetization by pulses from a generator. The pulses are simultaneously transmitted to line as dialling pulses. The device does not normally respond until it recognizes dialling tone from the exchange. The dial tone detector includes an integrator to distinguish between dial tone and a busy signal. Two lamps one of which lights when the device is activated and the other of which lights continuously while it receives dial tone and intermittently while it receives busy tone are included. Two push-buttons are provided. One may be pressed if dial tone is present but too weak to operate the detector and the other may be pressed to re-initiate dialling, e.g. after reception of a busy tone.
Patent GB-303985-A (GB)
Title: Improvements in or relating to apparatus for sharpening the knives of cigarette making machines
IPC: B24B3/40
Filed: 1927-12-05
Abstract: 303,985. Molins, W. E. Dec. 5, 1927. Machine cutters, grinding in situ.- The cut-off knife 20 of a continuous rod cigarette-making machine is sharpened by grinding-discs 6, one for each side of the blade mounted on spindles 7 in bearings 8 carried by rods adjustable in blocks 13. Each block is hinged on a horizontal axis in a bracket 14 and the position of the disc is adjustable in the plane of the knife by a screwed stop 15. The position of the disc transversely of the plane of the blade is adjusted by a screw 11 carrying a shoe 12 against which the spindle 7 is urged by a spring 10, and the angular position of the disc is adjustable by a quadrant 17 in the bracket 14. In order to renew a grinding-disc without stopping the machine, the block 13 is raised by a handle 18, and in the event of breakage of the knife, the bracket, if struck by the knife, swings upwardly. The complete mechanism is carried in a casing 1 with an inspection window 2, and may be applied. to machines having circular or sickle-shaped blades, with or without axial reciprocation.
Patent GB-658965-A (GB)
Title: Apparatus for synchronising a.c. machines
Filed: 1947-12-12
Abstract: 658,965. Control of several A.C. motors. BRITISH THOMSON - HOUSTON CO., Ltd., and CHOUDHURY, S. U. A. Dec. 12, 1947, No. 32824. [Class 38(iii)] [Also in Group XXXVIII] Where two or more A.C. machines having their polyphase secondary windings interconnected for synchronism when running or at standstill they may not experience sufficient synchronising torque if the interconnected winding systems of two machines are 180 degrees phase displaced. To ensure synchronism single-phase excitation is simultaneously applied to the primary elements at least one of which has a three-phase winding so that by a simple switching operation its field axis may be displaced by 30 degrees. Fig. 1 shows the primary windings 1, 3 of two slip ring motors adapted for three-phase excitation the secondary winding being interconnected. Single-phase excitation is first applied by closing switches 11a, 12a, a normally closed switch 14a placing a quadrature shunt on winding 3, so that the field axis of the two motors will be mutually displaced 30 degrees. A switch 15a is then closed to place a like shunt on winding 1 and bring the field axes into alignment. The motors will then have been pulled into synchronism and, to establish polyphase excitation, switch 13a is closed as switch 14a is opened. Specification 643,360 is referred to.
Patent GB-643900-A (GB)
Title: Improvements in and relating to charge-forming devices for spark-ignition internal combustion engines
IPC: F02M69/00
Filed: 1947-12-12
Abstract: 643,900. Regulating. JONSSON, G. E. V. Dec. 12, 1947, No. 32878. Convention date, April 7, 1943. [Classes 7(iii) and 7(vi)] To prevent knocking, fuel is injected during the first part of the compression stroke into a pre-combustion chamber 1 Fig. 2 to form a very rich mixture, which becomes diluted with air forced from the cylinder 3 through an opening 2 whose size is such that the mixture in chamber 1 only becomes ignitible slightly before operation of a spark plug 5, the timing of which is adjusted by the means controlling the fuel supply so that ignition occurs earlier in the cycle as the fuel supply is reduced. A chamber 6, in which final combustion of the mixture forced from the chamber 1 after ignition takes place, may be formed either in the piston or the cylinder head. In a modification, Fig. 3, the chamber 1 is divided into two chambers 1a, 1b, containing respectively the injector 4 and sparking plug 5 and communicating with one another through an orifice 7 and with the cylinder 3 through orifices 2a, 2b, of which 2a is larger than 2b so that on compression the pressure in chamber 1b is less than that in 1a. Rich mixture therefore passes through the orifice 7 to be diluted in 1b and ignited by the spark plug 5. The Specification as open to inspection under Sect. 91 states that gaseous fuel such as methane may be used, and an inert gas or air may be injected with liquid fuel. This subject-matter does not appear in the Specification as accepted.
Patent GB-1248710-A (GB)
Title: Metal pouring device
Inventor: DAVYDOV VIKTOR ALEXANDROVICH
IPC: B22D11/00
Filed: 1970-07-07
Abstract: 1,248,710. Continuous casting. VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY I KONSTRUKTORSKO - TEKHNOLOGICHESKY INSTITUT TRUBNOI PROMYSHLENNOSTI. 7 July, 1970, No. 32925/70. Heading B3F. [Also in Division F4] A tundish for use in the continuous or semicontinuous casting of tubes &c. comprises an annular dish 1 formed with peripheral passages 2 for the discharge of metal into a mould and divided diametrically at 3, the two halves being united by U-shaped clamps 7 engaging openings 6 in lugs 5. The passages 2 are defined between the wall 4 and spaced removable panels 9 sliding in projections 8, the wall 4 being recessed at 4a to allow metal to enter said passages 2. In a modification (Figs. 5 and 6), the passages 2 are formed on the inner annular wall and the couplings may comprise bolts (11) engaging holes in the lugs 5 or said lugs may be tapered inwardly (12) with clamps (13) disposed over them. The split line 3 runs on a raised portion 10 of the dish so that residual metal does not collect and solidify on said line. The dish may be rotated on the mould.
Patent GB-1462593-A (GB)
Title: Heat exchanger system and ducting arrangement therefor
IPC: F02C7/10
Filed: 1975-08-07
Abstract: 1462593 Gas turbine engine with air preheater CATERPILLAR TRACTOR CO 7 Aug 1975 [23 Dec 1974] 33028/75 Heading F1G [Also in Division F3-4] A heat exchange system for pre-heating air fed to combustion equipment 26 of a gas turbine engine 12 comprises a pair of elongated heat exchangers 52, 54 disposed symmetrically on opposite sides of a vertical plane 93 passing  through the longitudinal axis 18 of the engine which between them define a space 56 for air passing via duct 94 from the compressor 20. The air flows downwardly through the exchangers as indicated at A, to manifolds 96 and then to the combustion section 28 of the engine in countercurrent to hot gas B from the engine which gas passes through a difurrated channel and wall 98 to the heat exchanger and thence upwardly to separate exhaust conduits 126 and the atmosphere. The heat exchangers each comprise stacked plates having a central corrugated quadrilateral portion and triangular end pieces Fig. 3 (not shown), the cool air A passing therethrough in a generally Z- shaped flow-path. The gas turbine structurally supports the heat exchange units which have a length substantially similar to the overall length of the gas turbine engine.
Patent GB-758178-A (GB)
Title: Process for separating mixtures of particles differing in size and specific gravity, into fractions according to specific gravity
IPC: B03B5/30
Filed: 1954-11-16
Abstract: 758,178. Separating granular materials. STAMICARBON N.V. Nov. 16, 1954 [Nov. 21, 1953], No. 33195/54. Class 82(2). Mixtures of particles of differing sizes and specific gravities are separated according to specific gravity by first sizing them on a screen 1, using a magnetic suspension of specific gravity such that the screen underflow can be treated directly in a hydrocyclone 8 or a sink- and-float separator to give light fines 9 and heavy fines 11. The magnetic portion of these fractions is recovered by the separators 12, 10 and returned to the initial screening step, the gravity being corrected by water added at 16. Each fraction is again subjected to magnetic separation 37, 23, the residual magnetic material passing to a thickener 21. The purified fractions are thus dewatered in cyclones 41, 27 and filters 44, 30. The liquid from the filters is also passed to the thickener. The coarse particles pass to a mixing tank 5 and, together with added medium, pass to an inclined or horizontal hydrocyclone 52. The light fraction is screened at 53, the heavies at 59. The drained-off medium together with the thickened product from 21, passes back to the mixing tank 5. The washed-off medium is added to the first stage magnetic separators 12, 10. Additional magnetite may be added at 74 and demagnetised at 75. The thickener overflow f may be further heated e.g. by froth flotation to recover the wanted fractions and the froth then returned to the thickener 21. The tailings from the froth flotation may be flocculated. The diagram is of a coal washery. Specifications 662,794 and 726,510 are referred to.