baber/WOPTO huggingface dataset:
Patent GB-1451463-A (GB)
Title: Method and device for correcting harmonic distortions
IPC: G01M7/02
Filed: 1973-10-11
Abstract: 1451463 Automatic control of harmonic distortion COMMISSARIAT A L'ENERGIE ATOMIQUE 11 Oct 1973 [27 Oct 1972] 47536/73 Headings G3N and G3R In the correction of harmonic distortion in the signal γ representing the reponse of system 4 {electro-hydraulic vibration testing apparatus } , for each harmonic nF of the fundamental driving frequency F there is provided a correction signal of frequency nF, added in unit 12 to the driving frequency F, and whose amplitude and phase are adjusted in dependence on signal H, the ratio of the amplitudes of the n'th harmonic to the fundamental in the signal γ. The time derivative, of positive or zero only signal H is formed in unit 18, each change in sign in the sense minus to plus of such derivative causing the production by sign detector 22 of a pulse I causing a change of the sense in which amplitude, and phase changes are made, via memories 26, 24 resp., in the correction signal provided by units 36, 38. Changes in amplitude, resp. phase at constant phase, resp. amplitude are made in successive time intervals see Fig. 4 (not shown), switch 28, 28', 34 being controlled by sequencing clock 30. The rates of correction in phase and amplitude are proportional to the signal H fed to unit 32. Adjusting the correction signal in phase and amplitude, Fig. 5 (not shown). Sin and cos signals from generator 10 of frequency nF are fed to phase shifters (50, 50') whose slides (52, 52') are in quadrature and driven by motor (M 1 ) controlled by the phase adjustment signal, a phase shifted signal being produced by summing unit (56). The amplitude of the signal is controlled by potentiometer (58, 60), driven by motor (M 2 ) controlled by the amplitude adjustment signal. Derivation of signal H, Fig. 3 (not shown). Signal γ, representing vibrator jack acceleration, is given a constant amplitude characteristic in unit 14, and, in unit 16, the resultant is multiplied by sin and cos signals from generator 10, being fed, along with the signal from unit 14 to multipliers (40, 42). The multiplier outputs are low pass filtered, unit (48) taking the root of the sum of their squares, to give the signal H. A correction system is provided for each of a plurality of harmonics, see Fig. 1 (not shown).
Patent GB-1185510-A (GB)
Title: Method of Manufacturing a Rotor Blade.
IPC: B64C27/473
Filed: 1967-10-19
Abstract: 1,185,510. Moulding rotor blades. BOLKOW G.m.b.H. 19 Oct., 1967 [8 Aug., 1967], No. 47589/67. Heading B5A. A rotor blade comprising a glass reinforced plastics shell and a rigid expanded plastics core is moulded in a two part mould 4, 5 employing half shells 1, 2 of synthetic resin impregnated fabric or roving and an expanded core preform 3 which is of oversize dimensions, in the width and height directions whereby, on closing the two mould halves 4, 5 together whilst heating by electric elements 9, the surface layers of the core preform 3 soften under the mould closing pressure and an even and continuous pressure is applied by the preform 3 to press the shells 1, 2 against the mould cavity. A reinforcement layer 7, of synthetic resin impregnated fabric, may be applied to the loading end 8 of the core preform 3 prior to the insertion thereof between the shells 1, 2. A lead rod 6 is incorporated in the moulding to provide correction for the axis of gravity of the blade. Excess shrinkage of the preform 3 during the moulding process may be avoided by pro-shrinkage thereof.
Patent GB-1173595-A (GB)
Title: Improvements in or relating to Electrical Heating Units.
Inventor: BLOORE FREDERICK WILLIAM
IPC: H05B3/00
Filed: 1965-11-10
Abstract: 1,173,595. Casting composite articles. HOTFOIL Ltd. 9 Feb., 1967 [10 Nov., 1965], No. 47601/65. Heading B3F. [Also in Divisions D1 and H5] In producing an electrical heating unit having apertures therethrough of the type comprising a cast metal block incorporating an electrical heating element, the heating element 11 of, for example, a heated flange ring for a pipe system, is precisely located on a wiremesh grid 10 by clips 12, the grid 10 is tensioned and metal, e.g. aluminium or aluminium alloy, is cast around the grid and element. The precise positioning of the element in the grid enables the apertures to be drilled without damaging the element. Alternatively, a half of the metal block is made, the grid 10 and element 11 are secured to the half-block and the remainder of the metal block is cast around the grid and element. The heating element may be mineral-insulated stainless steel sheathed cable and the terminal ends consist of finned glands and mild steel pins insulated therefrom with ceramic beads. The finned glands may be located in a steel block to protect them during casting. The heating unit may be used as a platten in a heated press, e.g. for pressing trousers. The heating unit may also be used to cure plastics laminate material of irregular shape by the use of an intermediate correspongingly irregularly shaped heat transfer block.
Patent GB-1316329-A (GB)
Title: Preventing emulsion formation in mixtures of hydrocarbons and water  in the cooling of cracked  gas containing acetylenes and olefins
IPC: B01D51/10
Filed: 1970-10-07
Abstract: 1316329 Scrubbing cracked gas BADISCHE ANILIN- & SODA-FABRIK AG 7 Oct 1970 [8 Oct 1969] 47651/70 Heading C5E Emulsion formation is prevented when cracked gas containing acetylenes and olefines, obtained in the submerged flame method, are scrubbed with water by adding to the water an alkaline reagent to set up a pH of 7À5-12À5 in the washing water. Suitable alkaline reagents are NaOH, KOH, Na 2 CO 3 , NaHCO 3 , ammonia and/or (NH 4 ) 2 CO 3  used in amount 1-4 wt. per cent. A preferred pH is 8-8À9. The alkaline reagent is preferably a waste liquor from a fine washing in the working up of products obtained in the submerged flame method.
Patent GB-1283417-A (GB)
Title: High speed electrodeposition of nickel and/or cobalt
IPC: C25D3/16
Filed: 1969-10-01
Abstract: 1283417 Electro-depositing nickel and/or cobalt KEWANEE OIL CO 1 Oct 1969 [24 Oct 1968] 48336/69 Heading C7B A process for the high speed electro-deposition of nickel, cobalt or nickel-cobalt comprises electro-depositing nickel and/or cobalt on a cathode while employing an insoluble anode from a bath that is maintained substantially free from chloride and bromide ions said bath containing a buffered aqueous solution of nickel and/or cobalt ions having a pH of from 2.0 to 3À5 and an unsaturated organic material selected from butynediol, 1, 4-bis (#-hydroxyethoxy) butyne-2, and diethyleneglycolmonopropargyl ether, said buffering being produced by a buffer effective at a pH of from 2À0 to 4.0, during said electro-deposition said bath being passed over said cathode at a rate of at least 300 feet per minute while employing a current density of at least 500 amperes per square foot and operating said bath at a temperature of at least 150‹F. Ni ions may be provided by nickel sulphate, fluoborate, acetate, sulphamate, perchlorate or trichloracetate. Specified buffers (which also exert a ductilizing effect) are the following acids monochloracetic, o-phthalic, dihydroxybenzoic (2, 5), citric, hydrofluoric, succinic, acetic, n-butyric, o-hydroxybenzoic formic, mandelic and melilotic. The buffering agent may have a pKa of from 2.0 to 4À85. Boric acid may be used in addition as a secondary buffer. The insoluble anode may be Pb, C, graphite, Pt, platinized Ti or Pb alloyed with small amounts of Sn, Ag or Co. The anodes may be contoured so as to provide a uniform minimum spacing between the anode and cathode. To provide a uniform flow-rate at the cathode surface baffles may be placed at strategic points. Ni in the bath can be replenished by the use of nickel hydrate, oxide or carbonate or by nickel metal powder or by electrolytic means using nickel anodes in an auxiliary tank.
Patent GB-1341906-A (GB)
Title: Nitrile recovery process
Filed: 1971-10-18
Abstract: 1341906 Nitrile recovery process MONSANTO CO 18 Oct 1971 [19 Oct 1970] 48377/71 Heading C2C  Aliphatic unsaturated nitriles, e.g. acrylonitrile, produced by ammoxidation of olefins, are recovered in a process in which: (a) the effluent from the ammoxidation reactor at an elevated temperature enters a quench column within which a first stream of the nitrile and other organic materials is separated from a second stream of ammonium salts, water, dissolved product nitrile and impurities; (b) the first stream exits the quench column overhead and is processed for recovery and purification of the nitrile; (c) the second stream exits the quench column bottom and is separated into an organic phase and an aqueous phase, and, (d) the aqueous phase is fed to a waste water column at an intermediate point therein in which column the nitrile is removed from the aqueous phase; and in which (e) the organic phase is fed to the bottom of the waste water column.
Patent GB-1164064-A (GB)
Title: Improvements in or relating to Telescopic Sights
IPC: G02B27/34
Filed: 1967-10-25
Abstract: 1,164,064. Telescopic sights. ERNST LEITZ G. m. b. H. Oct. 25, 1967 [Nov. 10, 1966], No. 48407/67. Heading G2J. A telescopic sight comprises a glass block 1 whose parallel faces 2, 3 carry mirror coated plano-convex lenses 5, 4, a plane mirror 6 bearing a light transmitting scribed reticle, and a plane mirror 61, an intermediate image being formed at the reticle. The reticle may be optionally illuminized from behind to provide a bright crosswire on a dark field, or when a shutter is placed behind mirror 6, a dark cross-wire is seen. A pivoting mirror may be used to reflect external light through the reticle and a neutral wedge filter may be used to attenuate the illuminating light.
Patent GB-1390943-A (GB)
Title: Method for handling liquid samples for scintillation  spectrometry
IPC: B01L3/00
Filed: 1972-10-20
Abstract: 1390943 Containers PACKARD INSTRUMENT CO Inc 20 Oct 1972 [26 Oct 1971] 48474/72 Heading B8C [Also in Division G1] A container for a liquid scintillator containing a radio-active isotope comprises a pair of layers 78, 80 of flexible light-transmissive, polyester film joined as to form a bag portion for the liquid, the container being fillable and sealable. The layers may be of polyethylene terephthalate and joined to leave a filling neck 84. Alternatively a self healing material may be employed to enable filling by a needle. A plurality of containers may be formed in a continuous strip or separate container may be mounted on a pair of wires (Fig. 6, not shown). The containers may carry data which can be mechanically, magnetically, optically or electrically read.
Patent GB-1501188-A (GB)
Title: Alpha-aminoanthraquinone
IPC: C07C225/34
Filed: 1976-10-27
Abstract: 1501188 Preparing 2-aminoanthraquinones IMPERIAL CHEMICAL INDUSTRIES Ltd 27 Oct 1976 [26 Nov 1975] 48621/75 Heading C4P 1-Amino-, 1,5- and 1,8-diaminoanthraquinones are prepared by heating 1-amino-, 1,5- or 1,8- diaminoanthraquinone carboxylic acids in an inert, polar organic liquid in presence of copper or a copper compound at a temperature sufficient to cause decarboxylation, e.g. 180-210‹ C. The inert polar organic liquids include N-methylpyrrol-id-2- one, N,N-dimethylformamide, quinoline, N,N- dimethylaniline, N,N-dimethyl-p-toluidine and tri-n-butylamine. Copper powder or wire and cupric oxide or salts, including the copper salt of the aminoanthraquinone carboxylic acid may be used.
Patent GB-1486000-A (GB)
Title: Method and apparatus for converting heat energy into mechanical energy
IPC: F02C1/00
Filed: 1974-11-11
Abstract: 1486000 Hydraulic turbine plant L L BAILEY and D R KIMMEL 11 Nov 1974 [12 Nov 1973] 48648/74 Heading FIT A motor for converting heat energy into mechanical energy comprises a chamber 16 containing a first liquid having a high boiling point, e.g. molten lead, into which can be injected at one or more points 20, a second liquid having a lower boiling point, e.g. water or a petroleum based fuel, which is immediately vaporized forcing the first liquid through nozzles 22 to drive a mechanical output member, e.g. a bladed turbine rotor 26, 30. As shown, the second liquid is a fuel which passes after vaporization from chamber 16 via exit 36 to a combustion chamber 34 where it is ignited with air from a blower 40 to maintain the lead in a molten state. Oxygen may be utilized instead of air, or an external heat source may be used to allow non-combustible liquids to be used instead of the fuel.
Patent GB-1391809-A (GB)
Title: Pipe and cable clamping device
IPC: F16L3/22
Filed: 1972-10-23
Abstract: 1391809 Clamps BOWTHORPE CORP 23 Oct 1972 [23 Oct 1971] 48823/72 Heading E2B A device of plastics material and for supporting and retaining pipes cables &c against a surface comprises an elongated base 2 having integral therewith a deformable clamp element 5 extending from a rigid foot 6 having the profile of an arc of a circle and which is provided outwardly with a series of teeth 8 adapted to engage a corresponding series of teeth 8a carried by a stiff finger 9 at the end of the element 5. A counter element 10 is disposed adjacent the series of teeth 8 to define a recess 11 adapted, in use of the deice, to prevent displacement of the finger 9 radially of the foot 6, the finger being disengageable from the teeth of the foot by lateral movement of the finger. As shown, the base is provided with a hook 12 which is engageable with a cross-bar 14 of an adjacent device when two such devices are used as shown in Fig. 5 or when disposed at right angles one to the other.
Patent GB-1503730-A (GB)
Title: Fluid control valve
IPC: F16K3/24
Filed: 1975-11-28
Abstract: 1503730 Valves PONT-A-MOUSSON SA 28 Nov 1975 [5 Dec 1974 7 Nov 1975] 48968/75 Heading F2V A sealing element of a butterfly or lift valve has a heel portion 16a trapped between the annular faces 12a of an annular groove in the closure member and has an internal diameter greater than the diameter of the base of the groove to leave a space 19a. The head portion 17a of the element is joined to the heel portion by a web 18a and is free to distort in the enlarged outer end of the groove when differential pressure is applied to the closed valve. The outer end of the groove may have curved sides and may have inwardly projecting ribs at each side of the mouth. The element may be coated with P.T.F.E., the head portion may have a metal coil spring therein, and the web may have lateral annular ribs projecting into oversized grooves in the sides of the annular groove.
Patent GB-1456930-A (GB)
Title: Foams and sponge sheet for cigar manufacture
IPC: A24B15/12
Filed: 1974-11-14
Abstract: 1456930 Reconstituted tobacco AMF Inc 14 Nov 1974 [27 Dec 1973] 49298/74 Heading A2C  A foam comprising tobacco and a cellulose ether (e.g. ethylhydroxy ethyl cellulose) has a density of from 0.85 to 1.0 g/cc, at least 80% of the foam bubbles being less than 100 microns in diameter. Such a foam may be cast to produce a tobacco sheet having a density of 0.2 to 0.45 g/cc.
Patent GB-1440146-A (GB)
Title: Phosphonitrilic esters and the use of bromine-containing esters of this type for flameproofing textiles
IPC: C07F9/06
Filed: 1973-10-25
Abstract: 1440146 Phosphonitrilic esters BASF AG 25 Oct 1973 [26 Oct 1972] 49762/73 Heading C2P [Also in Division D1] The invention comprises phosphonitrilic esters of the Formula (I) wherein R is or and n is an integer of from 3 to 8 inclusive and mixtures thereof. They may be obtained respectively by reacting at from - 5 to + 150 C. one or more oligomers of phosphonitrilic chloride of the formula with (a) an at least equivalent amount of a glycol: HOCH 2 .CHOH.CHBr.CH 2 Br or (b) with at least an equivalent amount of the glycol: HOCH 2 .CHOH.CH=CH 2 . The product of (b) may be brominated at the carbon to carbon double bonds to form the bromine-containing ester. The processes (a) and (b) are preferably carried out in an inert organic solvent and in the presence of an acid-binding agent which may also serve as the sole solvent. The bromination is suitably effected by reaction with bromine in glacial acetic acid with cooling. The bromine-containing esters are useful as flameproofing agents for textile materials.
Patent GB-1283770-A (GB)
Title: Relief valve
IPC: F16K17/10
Filed: 1969-10-10
Abstract: 1283770 Valves ANDERSON, GREENWOOD & CO 10 Oct 1969 [20 March 1969] 49879/69 [20 March 1969] Heading F2V [Also in Division G3] In a pilot-operated pressure relief valve the main valve member 24 is constructed with a seat facing recess 56 that is covered with a diaphragm 46 which when the valve is closed engages seat 20 and is biased theretowards by fluid pressure communicated through the member 24 to the recess from an actuating bellows 30 connected to the pilot valve. The valve member 74 of the latter is operated by a spring-loaded double diaphragm arrangement 82, 84, the chamber 90 on one side of which is connected to atmosphere while the opposing chamber 86 is connected to the inlet 16 of the relief valve via conduit 78 and a passage (92), pressure from which also communicates via a variable restriction with conduit 42 leading to bellows 30 and via the variable restriction and a further fixed restriction with the chamber 88 intermediate the diaphragms. Increase of pressure in inlet 16 and thus chamber 86 opens pilot valve 74 to exhaust bellows 30 to atmosphere and open relief valve 24. The main valve member also has a further seal 50 held in place by a limit stop 52. The pilot valve may be connected to the main valve so as to relieve excess vacuum. Two pilot valves may be connected to the bellows 30 so that the relief valve responds to both excess vacuum and pressure.
Patent GB-1324519-A (GB)
Title: Molten glass shears
IPC: C03B7/11
Filed: 1970-10-21
Abstract: 1324519 Molten glass shears CORNING GLASS WORKS 21 Oot 1970 [30 Oct 1969] 49940/70 Heading C1M A pair of molten glass shears includes an upper blade 11 having a substantially flat lower surface and a lower blade 10 having a portion 10d, the thickness of which is substantially greater than the corresponding portion of the upper blade 11, adjacent its cutting edge 10a, the lower surface of the portion 10d being joined to the cutting edge by a portion 10c which progressively increases in thickness downwardly and away from the cutting edge 10a, so that in use the portion 10c contacts the severed gob 20 when the blades are brought together to impart to it a turning motion so that the gob falls horizontally into its forming mould 18. Each blade has a cutting edge 10a, 11a which is bowshaped in plan.
Patent GB-1121666-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F01N13/02
Filed: 1965-11-26
Abstract: 1,121,666. Exhaust silencers. TATRA NARODNI PODNIK. Nov. 26, 1965 [Nov. 27, 1964], No. 50319/65. Heading F1B. An exhaust silencer comprising a casing 17 with two separate inlet compartments 18, 19, connected by pipes 22, 23, of equal length to a collecting chamber 20 which is connected through pipe 25 to a silencing chamber 24. Exhaust pipes from successively firing cylinders of a bank of cylinders lead into different ones of the chambers 18, 19 e.g. in a bank of four cylinders with firing only 1, 2, 4, 3, cylinders 1 and 4 are connected to chamber 18 and cylinders 2 and 3 to chamber 19. In a V-8 engine Fig. 1 each bank of cylinders has a separate silencer 17 associated therewith.
Patent GB-1284302-A (GB)
Title: Apparatus for changing tubes in peristaltic pumps with removable couplings for tubes
IPC: G01N35/08
Filed: 1969-10-14
Abstract: 1284302 Pipe couplings POLYMETRON COMP Ltd 14 Oct 1969 [21 March 1969] 50331/69 Heading F2G An apparatus for changing the connection of tubes to peristaltic pumps comprises a coupling member 12 arranged to receive pump tubes and a clamp 21 &c. for pressing the member 12 against a support 11. The member 12 is fitted with nipples 13 for receiving the pump tubes which nipples project beyond the member on the side facing the support 11 and engage in apertures 16 in the support, the seal between each nipple and the support being maintained by sealing rings (14), Fig. 2 (not shown), partly sunk into recesses around the nipples in the member 12. The member 12 is pressed against the support 11 by a clamping stirrup 21 fitted with bolts 22 to hold it longitudinally displaceable in the support 11 and by pins 23 which fit into notches in the member 12 as the clamp is tightened by a screw 24. A gasket 17 between the support 11 and a cover-plate 18 to which pump lines (not shown) are connected, may be fitted with cross-channels to enable the separate pump lines to be combined. The coupling member 12 with its tubes can be removed from the support 11 by release of the clamp 21 &c., and replaced by another coupling member fitted with another set of tubes.
Patent GB-1286947-A (GB)
Title: Improvements in or relating to bag transfer apparatus and method
IPC: B65B39/10
Filed: 1970-10-26
Abstract: 1286947 Filling bags BEMIS CO Ltd 26 Oct 1970 [22 April 1970] 50724/70 Heading B8C A flat folded tubular bag is transferred from a bag magazine on to a hopper assembly having openable jaws with the jaws being extendable into the partially opened bag mouth by engaging one bag side wall at a first location adjacent the bag mouth and at a second location remote from the bag mouth and bending the gripped side wall about axes generally parallel to the bag mouth and intermediate the first and second locations for separating the side wall portions to at least partially open the bag mouth. As shown, flat closed bags in a magazine 11 are transferred by a pick-up assembly 22 to a hopper assembly 90, Fig. 2, from which, after filling, each bag is deposited on a conveyer 12. The magazine 11 comprises a pair of transversely inclined and spaced conveyer belts 126, 127, extending over rollers (121), (125), Fig. 7 (not shown), and the top runs of which extend over a platform (128). A number of spaced stacks of bags is arranged on the conveyer with the closed ends of the bags abutting a bottom wall 131, Fig. 1, and with the first stack (134) abutting a surface (133a) of a wall (133) in which position the stack (134) is aligned with bag pick-up mechanism 42. The bag pickup mechanism 42, Figs. 1, 4 and 5, comprises a shaft 43 and pivoted in a block 35 and on opposite ends of which is mounted a vacuum cup assembly 44. Each assembly 44 includes a bar 46 clamped to shaft 43 and carrying a pin 49 which extends into the path of movement of an arm 48 pivoted on the shaft, the arm carrying a roller 53 and being biased by a spring 50 to abut pin 49. An arm 57 welded to arm 48 carries a leaf spring 56 which supports a top vacuum cup 58. A bottom vacuum cup 68 is pivotally connected through a pair of bars 65 to a rod 36. A break bar assembly 79 comprises a break rod 83 which is pivotally connected to shaft 43 through brackets 82 and torsion springs 81 to retain the rod 83 intermediate the top cups 58 and the shaft 43. The block 35 is carried by a piston and cylinder assembly 33, 34 which is itself pivotally mounted about a shaft 23 on a frame member 19 to pivot the mechanism 42 from a position above the magazine 11 to a position adjacent the hopper assembly 90. The assembly 90 comprises a bag clamp 100, a movable hopper jaw 115 and a fixed hopper jaw 94 the clamp 100 and jaw 115 being operated through a piston and cylinder assembly 103, 104 to clamp a partially opened bag carried by the mechanism 42 when the latter assumes the dotted line position shown in Fig. 2. The apparatus is operated automatically by pneumatically operated switches and valves described with reference to Fig. 11 (not shown), and may be used for gusseted, pinch bottom and relatively wide mouth non-gusseted paper bags.