baber/WOPTO huggingface dataset:
Patent GB-886845-A (GB)
Title: Electric motor system
Inventor: ALLEN KENNETH CLEMENTS
IPC: H02K37/00
Filed: 1959-12-11
Abstract: 886,845. Control of D.C. motors. HOBART MANUFACTURING CO. Dec. 11, 1959, No. 42182/59. Class 38 (3). A servomotor, adapted to develop a pulsating torque, has its shunt field winding F connected to transformer winding L1, L2, through rectifiers R1, R2, whilst a rectifier R3 is connected across the field winding to allow the passage of circulating current during alternate half-cycles of the supply voltage. Thus, a substantially uniform field excitation is maintained, the armature M being supplied with half-wave current through rectifier R1 which is shunted by resistor X to allow the passage of small negative pulses. Rectifier R2 blocks the flow of re-circulating current through the armature. In addition, the field winding may be shunted by a capacitor, or the armature and field windings may be supplied respectively through half-wave and full-wave rectifiers. In another arrangement the field flux is provided by a permanent magnet.
Patent GB-1517237-A (GB)
Title: Voltage regulating and stabilizing apparatus
IPC: G05F1/00
Filed: 1976-10-11
Abstract: 1517237 Automatic voltage control INST ELEKTROSVARKI IM E O PATONA AKAD NAUK UKRAIN SSR 11 Oct 1976 42200/76 Heading G3R A voltage regulating circuit includes a transformer 1 producing an output which is compared with a desired voltage in a circuit 4 which may include a bridge with avalanche diodes and a variable resistor for setting the desired value. The resulting error signal is passed through an intermediate amplifier 7 to a differential power amplifier 10 which accordingly increases the current in one of a pair of control windings 13, 14 and decreases the current in the other winding so as to stabilize the transformer output voltage. Circuits 18, 22 detect when the range of regulation is exhausted and cause a switching circuit 15 including logic elements to energize a tap-changing circuit 27 which may employ magnetic devices or thyristors. A trigger circuit 28 ensures that the desired voltage is reached from a minimum tap setting when the arrangement is first switched on. Circuit details are described with reference to Figs. 2, 3 (not shown), and transformer construction and connections are illustrated in Figs. 4-15 (not shown).
Patent GB-1066169-A (GB)
Title: Improvements in or relating to conveying machines
IPC: B65G49/04
Filed: 1965-10-05
Abstract: 1,066,169. Reciprocating conveyers. UDYLITE CORPORATION. Oct. 5, 1965 [Oct. 6, 1964], No. 42274/65. Heading B8A. A conveying machine for transferring workpieces through a series of treating stations S1-23, Fig. 1 (not shown), comprises a number of work carriers 34 supported on tracks 40 along which a reciprocable mechanism transfers the carriers. Each carrier 34 comprises a carriage 70 guided on vertical members 58 and has a work carrier arm 62 which is raised and lowered by a lift mechanism 50 (also Figs. 3, 4, not shown). A series of lift mechanisms is moved in unison by a lift bar 98 which is actuated by a double-acting cylinder 104, Fig. 4 (not shown). For intermittent transfer of the work carriers 34 a reciprocable pusher bar 112 is operated by a double-acting cylinder 124, the bar having adjustable dogs 116 to permit variation in the advancing movement of the carriers. Mechanism is provided, Figs. 8-13 (not shown), whereby selected work carriers are retained in the elevated position above one or more treating stations. A delay dip mechanism, Figs. 14, 15 (not shown), is also provided. This enables certain work carrier arms to be retained in the elevated position for a prescribed time after the lowering of the main lift mechanisms and comprises slave lift sections 176.
Patent GB-976398-A (GB)
Title: Devices for supporting and carrying containers
IPC: B65D71/50
Filed: 1960-12-08
Abstract: 976,398. Can carriers. ILLINOIS TOOL WORKS Inc. Dec. 8, 1960 [Dec. 10, 1959], No. 42322/60. Addition to 914,202. Heading A4G. The device for supporting containers as disclosed in the parent Specification is modified to facilitate removal of the cans by provision of a tear strip formed by scored lines 18, the lines defining the strip passing close to the apertures 12 so as to leave thin readily extensible portions 42. A tear tab 22 may be provided.
Patent GB-993499-A (GB)
Title: Improvements in or relating to sintered electrical resistance bodies
IPC: H05B3/14
Filed: 1962-11-09
Abstract: A sintered electric resistance body consists of MoSi2 (with or without 0.1-5.0% Al and minor amounts of Al2O3, Zr2O3, BeO or SiO2 and has end portions which contain 0.1-20% of an oxide which melts below 1400 DEG  C.; which has been solidified from a melt and which covers the silicide particles at the body and pore surfaces. The oxide may be uniformly distributed throughout the end portions or there may be a concentration gradient with the greater proportion of oxide in the cooler outer end of the endpiece.ALSO:A sintered electric resistance body consisting of MoSi2 has end portions containing 0.1-20% of an oxide which melts below 1400  DEG C., which has been solidified from a melt and covers the silicide particles at the surface and the pore surfaces.  The MoSi2 of the central section may have an addition of an oxide melting at above 1400  DEG C. (e.g. Zr2O3, Al2O3, BeO or SiO2) and also 0.1-5% of aluminium.  The oxide component in the end portions may be uniformly distributed there-throughout or there may be a concentration gradient with the greater proportion of oxide in the cooler outer end of the end piece. The separate parts may be sintered separately and then joined by junction discs of MoSi2 which may be of a larger diameter than the rest of the body.  0.01-1.0% of an iron group metal (Fe, Co or Ni) may be added to the composition as a sintering aid.  In examples the powder mixture is homogenized, mixed with a plastifying and bonding agent, extruded in a vacuum extrusion press and sintered in reducing and oxidizing atmospheres.
Patent GB-1224669-A (GB)
Title: Container closure having a moulded-in liner
IPC: B65D41/04
Filed: 1968-09-06
Abstract: 1,224,669. Caps for containers. ARMSTRONG CORK CO. 6 Sept., 1968 [6 Sept., 1967], No. 42529/68. Heading B8T. A closure container 10 is provided with a protruding ring 13 integral with the crown 11 on which a liner material is moulded and retained by an undercut surface 14. The skirt may be threaded or otherwise provided with means to co-operate with the container. To effect such a configuration of the liner material a small amount of the latter is placed centrally in the closure and a cooled plunger is pressed into engagement with the heated liner material to force it into the undercut. Various other shapes, including grooves in the rings, may be provided for the retainer means.
Patent GB-1333992-A (GB)
Title: Method of and compositions for combating mareks disease
IPC: A23K1/16
Filed: 1971-09-13
Abstract: 1333992 Treating Marek's disease MERCK & CO Ltd 13 Sept 1971 [17 Sept 1970] 42623/71 Heading A5B Marek's disease in poultry is combatted by administering to the poultry a compound of the formula: wherein each of R 3  and R 5  is amino, alkylamino, dialkylamino, benzoylamino (optionally substituted with carboxy, hydroxy, C 1-6  alkyl, guanidine, alkoxy, halo, haloalkyl, alkylthio, thiol, ureido -HN-C-NH 2 - # S or alkylthiocarbamoyl), each of R 4  and R 6  is an H atom or an amino, alkylamino, dialkylamino or benzoylamino radical (optionally substituted as above) and X is -S-, -SO- or -SO 2 -, the alkyl and alkoxy radicals mentioned having 1 to 8 carbon atoms. Administration may be oral, e.g. in the feed, by injection or as a subcutaneous capsule. Compositions comprising the active ingredient and a sterile, injectable vehicle, or a poultry feed and in the form of a subcutaneous capsule or water-soluble or dispersible powder are also claimed.
Patent GB-934577-A (GB)
Title: Preparation of 3-(trifluoromethyl)-phenols
IPC: C07C37/045
Filed: 1961-11-30
Abstract: A phenol having the general formula <FORM:0934577/IV(a)/1> wherein R is a hydrogen or halogen atom or an alkyl, aryl or nitro radical is prepared by diazotising 3-(trifluoromethyl)-4-R-aniline to form a corresponding diazonium salt, hydrolysing the diazonium salt with a boiling mixture of at least 100 ml. of xylene per mole of diazonium salt and aqueous copper sulphate solution containing at least 10g. of copper sulphate pentahydrate per mole of diazonium salt, and subsequently recovering the phenol.  The group R is exemplified by chlorine and bromine atoms; straight or branched chain alkyl radicals having 1 to 12 carbon atoms, e.g. methyl, ethyl, propyl, butyl, hexyl, dodecyl and isobutyl radicals; phenyl, naphthyl or alkyl substituted phenyl and naphthyl radicals, e.g. p-tolyl. 3-(Trifluoromethyl)-4-nitro-aniline is prepared by hydrolysing 3-(trifluoromethyl)-4-nitro-acetanilide with a mixture of concentrated sulphuric acid and water.
Patent GB-932429-A (GB)
Title: Production of acetylene and olefins by incomplete combustion of hydrocarbons
IPC: C07C2/78
Filed: 1959-12-18
Abstract: Acetylene and olefines are obtained by partial combustion of a hydrocarbon under super-atmospheric pressure, injecting a hydrocarbon having at least two carbon atoms per molecule to cool the combustion products while concurrently being pyrolysed and further quenching the reaction products with water.  The first hydrocarbon may be methane which is partially oxidized at 3-6 atmospheres.  Gasoline is injected in one or more stages to cool the gases to 800 DEG -700 DEG C. and then water injected to cool further to 150 DEG -130 DEG C. Preferably the cooling water is not heated above the boiling point at the pressure employed and is recovered as hot water, e.g. at 130 DEG C., for use in heating solvents containing dissolved gases in the subsequent solvent extraction.
Patent GB-1450795-A (GB)
Title: Parasitic voltage determining circuits
IPC: G01R29/00
Filed: 1973-09-21
Abstract: 1450795 Measuring voltage SIEMENS AG 21 Sept 1973 [21 Sept 1972 (2)] 43030/73 Heading G1U The levels of noise voltages superimposed on an alternating voltage which may change in frequency are measured by comparing the peak amplitude with the mean signal level. The input signal UE is supplied to a full-wave rectifier circuit 5 which includes low-pass filtering 59, 60, 62 to provide a signal via resistor 7 which represents the mean input signal level. The input signal is also fed to circuit 1 which provides peak clipping using diode 15 and capacitor 18. The diode threshold is eliminated by using negative feedback amplification. In order to improve responses to diminishing amplitudes of input level, circuit 3 detects the charge current pulses in the peak clipping circuits. If these cease, transistor 35 is turned off and capacitor 36 charges, turning on transistor 42 which provides a discharge path for the peak clipping capacitor 18. The output signal from resistor 8 thus rapidly follows both increasing and decreasing signal levels. The two output signals are of opposite polarity and are thus fed to one input of amplifier 9 and the difference signal output is integrated, 1. Noise signals on the input only affect the peak voltage and the output thus produced may be used as a control signal. A stated use is in measuring noise on a pilot signal transmitted through a telephone channel in order to switch channels if the noise level is excessive.
Patent GB-1425551-A (GB)
Title: Hexamethylenetetramine adduct and its use as a bactericide
IPC: C09D7/12
Filed: 1974-10-04
Abstract: 1425551 Hexamethylenetetramine adduct COSAN CHEMICAL CORP 4 Oct 1974 [5 Oct 1973] 43245/74 Heading C2C [Also in Divisions C3 and A5] The invention comprises the adduct formed by the reaction of 2 molar parts of hexamethylenetetramine and 1 molar part of 3,4- dichlorobut-1-ene. It may be prepared by reacting hexamethylenetetramine with 3,4- dichlorobut-1-ene at a temperature of not more than 130 C. The reaction is preferably carried out in a solvent in which the reactants are soluble and the product insoluble, e.g. chloroform and perehloroethylene. The adduct may be used as an anti-microbial agent in paints, adhesives and other aqueous compositions.
Patent GB-995668-A (GB)
Title: Improvements in multipurpose domestic appliances
IPC: A47J43/044
Filed: 1962-11-15
Abstract: 995,668. Domestic mixers. RONSON CORPORATION. Nov. 15, 1962 [Nov. 16, 1961], No. 43304/62. Heading B1C. A domestic mixer comprises a hollow base 20 and pedestal 22 with a beater arm 28 pivotable so that the beater can be raised clear of the mixing bowl as shown, or the arm can be retracted with the recess 48 in the pedestal. The entire apparatus is pivotable at 12 so that it can be housed in a well (see Figs. 6 and 7, not shown) in the bench 16, the back of the pedestal 22 then forming part of the bench surface. A variable speed motor 74b drives through spur gearing 78b two coaxial power take-off shafts 24 (24b in Fig. 9-10) and 25b, and through a dog clutch 88b the detachable beater 34 or 34b ; depression of the button 46b disengages in succession the clutch 88b and the detent retaining the beater arm 28b. The slow speed shaft 25b may mount a turntable 36 or 36b for the mixing bowl ; the high speed shaft 24b may drive a blender or other high speed device which after removal of the turntable can be received in the recess 50b and secured by locking bars extending through slots 117b and operated by an external control knob 121b, see Fig. 12 (not shown). There is a speed control knob 38, timer knob 40, and manual over-ride switch 42. Specification 995,669 is referred to.
Patent GB-1042070-A (GB)
Title: Improvements in window structures
IPC: E06B9/262
Filed: 1963-11-05
Abstract: 1,042,070. Windows; window blinds. A. ROCCO and G. S. SCHWEITZER. Nov. 5, 1963 [Nov. 5, 1962], No. 43665/63. Heading E1J. In a window a sash for a transparent pane is positioned obliquely to the vertical plane of the supporting structure and has at least one end sash between the first sash and the supporting structure. A channel section frame 28, 30, 32 extends within a window opening 18 having a triangular section sill 34a projecting within the building. The frame supports a trapezoidal framework 56, 60, 66, 68 which may be glazed or have an inner sash 156, 158 hinged thereto; the framework sloping inwards into the building. The triangular openings formed between the ends of the trapezoidal framework and the channel frame are closed with glazed sashes comprising T-section members 96, 98, 100 glazed at 94 and hinged along the vertical sides to the frame members 30, 32. A screen 105 may be fitted with the triangular openings to prevent the passage of insects. Horizontal bars secured to the frame 58 by spring-loaded bayonet type catches 210 (Fig. 13) provide support for rings 238 supporting concertina blinds 204 of translucent plastic having end catches 250 with spring-loaded hooks engaging the horizontal bars.
Patent GB-1104527-A (GB)
Title: Improvements in or relating to the purification of fluids by reverse osmosis apparatus
IPC: C02F1/00
Filed: 1966-09-30
Abstract: 1,104,527. Reverse osmosis. GENERAL DYNAMICS CORPORATION. 30 Sept., 1966 [4 Oct., 1965], No. 43721/66. Heading B1X. A hydraulic accumulator 31 is coupled to a line 15 between a pump 13 and a reverse osmosis purification device 21 to maintain a constant flow rate and constant pressure of the fluid, e.g. sea water, being supplied to device 21. The accumulator includes a diaphragm 33 pressurised with air to above osmotic pressure an initially filling cylindrical tank 32 and closing valve 35. Valve 35 is set to remain open whenever the fluid pressure exceeds the initial air loading pressure of the diaphragm.
Patent GB-938333-A (GB)
Title: Improvements in or relating to kitchen installations
IPC: A47B88/60
Filed: 1959-12-24
Abstract: 938,333. Support for stove bodies. HERMANN FORSTER A.G. Dec. 24, 1959 [Dec. 24, 1958], No. 43813/59. Class 126. [Also in Groups I and XIII] A kitchen installation comprises in combination a cover 1 formed with a sink and drawing board and a tiltable kitchen unit 4 or units, for example, an oven, refrigerator or boiler, built in the base structure thereof beneath the cover 1 and tiltable on a base frame 3 by means of a bottom bearing part situated in front of the centre of gravity S of the unit 4 or units, and a stop member, adapted to engage an upper portion of the unit 4 or units forming a stop part preventing it or them from tilting back. In the form shown the base frame is U-shaped and of metal, the side walls 2 of the installation being secured on the side arms 3a, the supporting part of a pivot bearing 6 being a rib 7 on the main part 3b (Figs. 1 to 3). The stop part (e.g. 8 in Fig. 3) is detachably fixed to the stop member on the cover 1 when the unit is in the innermost position. Six arrangements are shown (Figs. 3, 4a-4d, and 7). The pivot bearing 6 may be formed by at least one recess on the base of the unit 4 and at least one projecting part 23 on the frame 3 (Fig. 5a) or by a groove on the frame 3 and a round head or heads on the base of the unit 4.
Patent GB-1096932-A (GB)
Title: Improvements in or relating to optical apparatus for the examination of the human eye
Inventor: BINSTEAD HUGH CECIL
IPC: A61B3/12
Filed: 1963-11-06
Abstract: 1,096,932. Eye-examining apparatus. UNITED KINGDOM OPTICAL CO. Ltd. Nov. 5, 1964 [Nov. 6, 1963], No.43822/63. Heading G2J. Optical apparatus for examining the human eye comprises means for projecting an image of a graticule on to an eye and a microscope for observing the eye, said means and the microscope being mounted so that each can move independently of the other, and is characterized in that the graticule is a photograph of a master graticule pattern. A plurality of such graticules is carried on a disc Q which is mounted for rotation about an axis parallel to but spaced from the optical axis of an illuminating device so that any required graticule of the disc may be brought into an opera tive position on the optical axis. Light from a lamp J<SP>2</SP> passes through condensing lenses K and the chosen graticule to an objective L which focuses an image of the graticule on the eye by means of a reflector M<SP>1</SP>. The projecting means and the microscope are mounted for independent rotation on a spindle D<SP>2</SP> by means of brackets F<SP>1</SP>, E<SP>1</SP> respectively. The apparatus is carried by an upper base plate D which is movable laterally with respect to head supporting means carried by a lower base plate A. A second graticule disc Q<SP>1</SP> may be used in combination with the first disc to provide further graticule patterns.
Patent GB-1282007-A (GB)
Title: Thermal dissociator for, and thermal dissociation of gases
Inventor: PEACOCK ARNOLD L
IPC: C01B3/04
Filed: 1969-09-05
Abstract: 1282007 Gas dissociator GTE SYLVANIA Inc 5 Sept 1969 [5 Sept 1968] 44049/69 Heading B1F [Also in Division Cl] In a thermal dissociator for gases, tungsten electric heating coils 13 in aluminium oxide tubes 5 are made from continuous lengths of tungsten wire coiled with rectangular coils, the corners of each turn being offset from the corners of a preceeding turn so that the corresponding corners or successive turns lie in a helix. Ammonia, to be dissociated enters at 2 and passes through heat exchange coil 12 into chamber 9. The gas then passes through tubes 5 to flow turbulently between and around the tungsten coils 13 in the tubes heated to 1700‹-3000‹F when the ammonia is dissociated into nitrogen and hydrogen. The resulting gases pass out of tubes 5, flow around the outside of heat exchange coils 12, and leave at 3.
Patent GB-1390034-A (GB)
Title: Semiconductor information storage devices
IPC: H01L27/06
Filed: 1971-09-22
Abstract: 1390034 Transistor data storage circuits FERRANTI Ltd 21 Sept 1972 [22 Sept 1971] 44263/71 Heading H3T [Also in Division H1] Data digits to be stored on capacitance 21 are fed to it through a reverse-conducting bipolar transistor 18, and they then determine the conductivity condition of a junction FET 20 during read-out-to-write, a write select line 14 goes high when all inputs to circuit 11 (details Fig. 2, not shown) are high, and enables transistor 18 to charge C21 to a high level by reverse conductions if a high level exists on write line 16, or to a low level by forward conduction if a low level exists on 16. The P-channel junction FET 20 conducts only if no charge is stored on C20, and this condition is detected by earthing the read select line 15 (by T31, Fig. 2, not shown) and producing current flow from the read circuit 13 (details, Fig. 4, not shown). Such current flow (through T41, T40) turns off an output transistor (46) in the read circuit to give a high output at G. The high potential on write select line 14 is produced by the same set of allhigh inputs A-E as produce the low potential on read-select line 15, but after a delay determined by a diode D1 to allow for completion of read out. The write circuit 12 (details, Fig. 3, not shown) responds to either new information F, or to the feed-back output G of the read circuit for refreshing purposes.
Patent GB-1433170-A (GB)
Title: Resolving the optical isomers of tryptophan
IPC: C07B57/00
Filed: 1973-09-25
Abstract: 1433170 Optically resolving DL-tryptophan TANABE SEIYAKU CO Ltd 25 Sept 1973 [28 Sept 1972 27 March 1973] 44947/73 Heading C2C DL-Tryptophan is resolved into its optically active isomers by using its novel benzenesulphonate or p-phenolsulphonate. To this end a solution is formed containing an excess of one of the optically active sulphonates and the solution is caused to crystallize whereby the sulphonate in excess crystallizes out. The solution may be in water or a mixture thereof with a C 1 -C 6  alcohol or a C 3 -C 6  ketone. In different embodiments (1) a supersaturated solution of the racemic sulphonate is seeded with the sulphonate of an optically active isomer to cause this optically active isomer to crystallize out, (2) a small amount of the sulphonate of an optically active isomer is dissolved in a hot solution of the racemic sulphonate and the solution is cooled whereby crystallization of the predominant isomer takes place and (3) a combination of these techniques is used. The mother liquor obtained after (1), (2) or (3) may be treated to obtain the sulphonate of the other optically active isomer by adding the racemic sulphonate to the hot mother liquor whereby the sulphonate of this other optically active isomer predominates and then proceeding as before. The benzenesulphonate or p - phenolsulphonate of tryptophan is prepared by neutralizing tryptophan with benzenesulphonic acid or p-phenol sulphonic acid in a suitable solvent. Tryptophan is obtained from these sulphonates by treating them with an inorganic base, an organic base or an ion-exchange resin.
Patent GB-1237735-A (GB)
Title: Process for the manufacture of a polyvinyl ester dispersion
IPC: C08F261/04
Filed: 1968-09-23
Abstract: 1,237,735. Polymerizing vinyl esters. FARBWERKE HOECHST A.G. 23 Sept., 1968 [21 Sept., 1967], No. 45006/68. Heading C3P. Vinyl esters are polymerized or copolymerized in aqueous suspension with a free radical catalyst in the presence, added before polymerization begins, of (a) 3-25% wt. (based on the aqueous solution before addition of monomer) of a polyvinyl alcohol (or derivative) with a residual acetyl content of 0À5-20% wt. and (b) 0À3-20% wt. based on (a) of a polyvinyl alcohol with a residual acetyl content of 20- 32% wt. and obtained by saponification of a polyvinyl acetate having a K-value of 10-70. In the examples, vinyl acetate is polymerized using ammonium persulphate. Other emulsifiers may be present.