baber/WOPTO huggingface dataset:
Patent GB-1269999-A (GB)
Title: An automatic tool position compensating system for a numerically controlled machine tool
IPC: G05B19/404
Filed: 1969-07-17
Abstract: 1,269,999. Machine tool details. IKEGAI TEKKO K.K. 17 July, 1969 [17 July, 1968], No. 36044/69. Heading B3B. [Also in Division G3] A machine tool A, adapted for numerical control, has a table F, a column C, a headstock H, a main spindle S and an automatic tool exchanging device E mounted on the headstock for transferring a tool between a store, not shown, and the spindle. A measuring element 5, arranged directly under the spindle S, has a body movable axially with the spindle and rotatable up and down, and forward and back. In operation, a workpiece W is secured to the table F and the necessary cutting tools set in the store. Command information from a tape is derived by a tape reader 1 and causes a miscellaneous device 3, comprising relays, to select a tool B 1-n  and mount it, through the exchange device E, in the spindle S. The completion of the operation is signalled to the device 3 by a signal FIN. A controller 2 then distributes command pulses for feed direction, distance and speed to servo-motors, not shown, for the table F and headstock H. The tape is so programmed that after boring has progressed for a short distance a measuring sub-programme is carried out in which the elment 5 is extended, by oil pressure or rotation of a screw-thread, to position the feeler 6. The positional errors at four points around the base are detected by a differential transformer within the element 5 and transmitted to a signal processor 7 wherein the co-ordinate and radius errors are calculated and memorized. After completion of the measuring sub-programme the positive or negative pulses corresponding to the memorized co-ordinate error are fed through the controller 2 for movement of table F and headstock H in response to a miscellaneous function signal read from the tape. The hole is then bored in the workpiece compensated for all deviations except the programmed short distance. In subsequent machining cycles using the selected tool the memorized deviations are automatically allowed for. The depth of the hole bored is similarly compensated with respect to a spot face machined in accordance with the programme.
Patent GB-1305740-A (GB)
IPC: C13B50/02
Filed: 1970-07-24
Abstract: 1305740 Moulding pulverent material GEN. ERALE SUCRIERE SA 24 July 1970 [25 July 1969] 36105/70 Heading B5A An apparatus for moulding pulverent material e.g. sugar, into a coherent lump, comprises a mould 2 in a moving support 1, and a piston 4, actuated by a fixed cam surface 5 to compress the sugar against a stationary bearer 9 vibrated by a supersonic magneto-striction generator 11. In Fig. 2, not shown, moulds are arranged in a rotating drum 13 and pass successively below a charging hopper (15) before moving below the bearer 9 which is supported in a frame (18) reciprocated by a crank (16), (17). The mould pistons 4 compress the sugar in two stages by the action of cam surfaces (5a), (5b). The generator is controlled by a cam-switch 19, 20. The frame (18) can be fixed. The amplitude of the generator can be varied.
Patent GB-423852-A (GB)
Title: Improvements in or relating to wearing apparel and the manufacture thereof
IPC: A41C1/04
Filed: 1933-05-26
Abstract: 423,852. Suspender tabs for wearing- apparel. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, BROWN, L., and HEMM, C., 2, Cambridge Street, Manchester. May 26, 1933, Nos. 36359/34 and 2201 /35. Divided out of 422,044. [Class 141] A rubber suspender unit for attachment to garments, such as corsets, comprises one or more tabs depending from a margin for vulcanized attachment to the edge of a portion of the garment. As shown, the rubber unit 1 is formed with integral suspender tabs 2, 3, and has the margin 4 formed with a U-shaped or double edge to embrace the lower edge of the corset panel 5 prior to vulcanization. The tabs 2, 3 are formed with projecting parts 6 for engagement by a metal clip carrying the usual suspender fitting. In a modification, the lower edge of the corset panel 5 is formed with recesses engaged by correspondingly shaped projections formed on the inner face of one side of the U-shaped edge of the margin 4 of the rubber unit 1. Specification 422,044 is referred to.
Patent GB-1181540-A (GB)
Title: Improvements in or relating to Cathode Ray Tubes.
IPC: H01J29/74
Filed: 1967-08-08
Abstract: 1,181,540. Electron beam electrostatic deflectirig systems. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 8 Aug., 1967 [11 Aug., 1966], No. 36359/67. Heading H1D. An arrangement including a cathode-ray tube (display tubes and oscillograph tubes are instanced) comprises an electron gun, deflection means for deflecting the beam in first and second directions and electrodes 20, 21, 22 and 23 for instance for producing a quadripolar electrostatic field to correct deviations from orthogonality in the two directions of deflection, e.g. directions of deflection AB, CD are rotated to A<SP>1</SP>B<SP>1</SP> and C<SP>1</SP>D<SP>1</SP>, respectively. The two planes of symmetry of the field, defined as those symmetry planes which cut the equi-potential lines of the field in operation, e.g. FG, HI, contain the axis of the electron gun and are at substantially 45 degrees with the two directions of deflection AB, CD. The quadripolar field may be between one or both deflecting fields and the screen. The four electrodes may be coatings (10, 11, 12, 13) on four insulating rods (6, 7, 8, 9) to which electron gun components are fixed (Fig. 1, not shown) or portions of electrically conductive coatings (28, 29) on the inner surface of the C.R.T. for providing field free spaces separated from each other so that over a part of the tube axis the perpendicular cross-sections comprise two identical diametrically opposite sections of each of the two portions (Figs. 4 and 5, not shown). Correction of orthogonality errors due to mechanical tolerances in the deflection means arrangement and deviations in the post acceleration field, if present, is mentioned.
Patent GB-766884-A (GB)
Title: Improvements in or relating to the manufacture of transistors and other semi-conductor elements
Inventor: CRESSELL IAN GEORGE ARCHIE
IPC: H01L21/3063
Filed: 1953-12-31
Abstract: 766,884. Semi-conductors. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 27, 1954 [Dec. 31, 1953], No. 36372/53. Class 37. [Also in Group XL (b)] In the manufacture of transistors and other barrier layer elements in which the surface of a piece of material is to be electrically etched, e.g. prior to the addition of indium, light is directed on to the material during the etching process and a measure made of the photo-electric current (conductivity?) this current being an indication of the etching process and enabling it to be terminated at a desired stage. As shown, the specimen 1 to be etched is a thin wafer of germanium mounted horizontally in a bath of electrolyte such as diluted caustic potash or hydrogen peroxide and continuously rotated by a motor 3. Cathodes 9 of platinum or tantalum are connected together and to the negative terminal of a battery 12 while the germanium plate is connected to the positive plate through a resistor 13 and slip ring 14. Light from a source 5 is directed on to the germanium plate by a line 6 and is " chopped " by a motordriven chopper plate 7. The resulting alternating voltage developed across the germanium by its changes in conductivity is applied through slip ring 14, condenser 15 and amplifier 16 tuned to the chopper frequency to an indicator 17. Specification 699,329 is referred to.
Patent GB-1362274-A (GB)
Title: Exhaust system for internal combustion engines
IPC: F01N1/02
Filed: 1971-08-03
Abstract: 1362274 Silencing exhaust gas flow TENNECO Inc 3 Aug 1971 [26 Aug 1970] 36444/71 Heading F1B To reduce or eliminate whistle at the upstream edge of a sharp edged opening 15 of an exhaust pipe 7 to which a chamber 13, e.g. a quarter wave length tube, is connected, the pipe wall is deformed outwardly to produce a protrusion or protrusions 17, 21 close to and upstream of the sharp edge 16. The protrusion may be crescent shaped, Fig. 5 (not shown), or annular, Fig. 6 (not shown). The chamber 13 is located upstream of a silencer 9.
Patent GB-418474-A (GB)
Title: Improvements in or relating to washing or drying machines or the like
IPC: D06F37/08
Filed: 1933-12-28
Abstract: 418,474. Washing-machines. BREIJ, N. G., 372h, Govert Flinckstraat, Amsterdam, and KLOES, N. J., Zwanenburg, near Halfweg, both in Holland. Dec. 28, 1933, No. 36463. [Class 138 (ii).] The rotary receptacle 1 of a washing or drying machine is divided into two compartments by a flat partition 2 extending axially, and each compartment is provided with a door 4 and with a longitudinally extending rib 3 running along its inside wall. The ribs are arranged centrally along the curved walls and are formed by bending the walls inwardly at these points. The walls, as shown, may be formed of slats.
Patent GB-1067743-A (GB)
Title: Improvements in or relating to electroplating apparatus
Inventor: BROWN CHARLES BOSWELL
IPC: C25D17/10
Filed: 1963-09-17
Abstract: <PICT:1067743/C6-C7/1> Means such as a hook for suspending plate, strip or sheet plating material in an electroplating bath, e.g. from an anode suspension rail, comprises a single length of resilient rod or wire, preferably of titanium or a titanium coated plastic core, bent over at one end to form a suspension portion 10, and at the other end to form a loop 11 and a hairpin shaped portion 12 in a plane at right angles to the loop to grip the plating material against the loop.
Patent GB-1159189-A (GB)
Title: Cable Duct
IPC: H02G3/04
Filed: 1967-08-09
Abstract: 1,159,189. Conduits. WALTER BARR PTY. Ltd. 9 Aug., 1967 [10 Feb., 1967], No. 36636/67. Heading H2C. [Also in Division E1] A duct comprises a backing plate 9 for attachment to a building wall 10, continuous cable supports 11, 12, a continuous screw receptacle 14 extending the length of the plate and provision 18, 19, for receiving a snap-on plate 20. Power outlets 35 or telephone outlets (Fig. 4, not shown), may be fitted in holes in the coverplate. Sections (25) (Fig. 6, not shown), 26, 27 are used for joining plates 20. The plates 9, 20 may be plastics extrusions.
Patent GB-847759-A (GB)
Title: Improvements in or relating to adjustable drafting heads for drawing boards
Inventor: DARGUE ERIC LEWIN
IPC: B43L13/04
Filed: 1958-11-14
Abstract: 847,759. Draughting machines. DRAGUE BROS. Ltd. May 25, 1959 [Nov. 14, 1958], No. 36646/58. Class 97(3) A draughting head of the type having one pair of rollers 24, 26, mounted on fixed pivots 20, 22, and another pair 32, 34, mounted on spring loaded pivots 36, 38, the two pairs of rollers being arranged to engage on tracks formed on opposite sides of a rib on a straightedge 12, has stops 46, 48, provided to restrict movement of the rollers 32, 34, away from straightedge 12. The stops 46, 48, may be grub screws engaging screwed holes in metal brackets 50, 52, and pressing against the underside of the two arms of ,a spring lever 42 carrying the pivots 36, 38. Fine adjustment of the draughting head along the straightedge 12 is effected by rubber covered rollers 54, 56, and the straightedge may have rack and pinion mountings at edge end for movement over the board.
Patent GB-1475468-A (GB)
Title: Digital to analog converter
IPC: G02F1/095
Filed: 1975-09-05
Abstract: 1475468 Controlling light INTERNATIONAL BUSINESS MACHINES CORP 5 Sept 1975 [31 Dec 1974] 36721/75 Heading G2F A device for producing an analogue optical output of intensity proportional to the value of an input optical or electrical digital signal comprises a plurality of thin film optical waveguide segments, one for each element of the digital signal, each segment having coacting therewith a plurality of magnetic field producing elements, proportional in number to the weighting of the associated element of the digital signal, and arranged, in operation, to produce successive magnetic fields of reversed polarity along the segment, whereby light entering the segment in a first mode, (TM) is converted to a second mode (TE) to a degree substantially proportional to the number of magnetic fields through which it passes, the second mode subsequently being selectively transmitted e.g. by an analyzer or electrically conductive film deposited near the output coupler or couplers 36-42. In Fig. 3, current flowing in a conductor 102 over-lying parallel guide segments 156-162 provides the magnetic fields and the input couplers 26-32 (gratings) receive a digital optical signal from optical fibres. In a modification, Fig. 1 (not shown), the conductor 102 is replaced by an equivalent plurality of permanently magnetized islands. The mode converted output from couplers 36-42 is directed via optical fibres and a collecting lens to utilization means. In Fig. 4, the segments are in sequence and are each overlaid with a respective conductor 216-222 which is selectively energized in response to the value of the corresponding element of an input electrical digital signal. The length of each magnetized portion of each guide segment should be#/## where ## is the difference between the propagation constants of the two modes.
Patent GB-1466600-A (GB)
Title: Copolymer-containing layers useful in photogrpahy and coating compositions for their manufacture
Inventor: SMITH DONALD ARTHUR
IPC: C08F220/12
Filed: 1974-08-22
Abstract: 1466600 Coatings EASTMAN KODAK CO 22 Aug 1974 36983/74 Addition to 1181508 Heading B2E [Also in Divisions C3 and G2] Supports of particular use, in photography comprise a coating comprising copolymer containing (A) at least 50% by weight of units of the formula wherein R<SP>1</SP> is H or methyl and R<SP>2</SP> is alkyl, (B) 3-30% by weight of units of the formula wherein R<SP>3</SP> is H or methyl and M is a cation (e.g. H, NH 4 , alkali metal or organic ammonium), and (c) 2-20% by weight of units of the formula  wherein either R<SP>4</SP> is H or alkyl and R<SP>5</SP> is R<SP>6</SP> being alkylene and X being aliphatic acyl or -CN, or R<SP>4</SP> is R<SP>7</SP> being alkylene containing at least two carbon atoms in the alkylene chain and X is as previously defined, and R<SP>5</SP> is alkyl, cycloalkyl or aryl, said copolymer containing at least 0.1% by weight of active methylene groups (i.e. methylene groups bonded directly to two electron-withdrawing groups, e.g. carboxyl groups). The layers may also include a hydrophilic colloid binder, e.g. gelatin, and can be applied to a support from an aqueous dispersion or latex of the copolymer, optionally also containing the binder. The copolymer layer can, if desired, be hardened by treatment with such compounds as formaldehyde, mucochloric acid, an aziridine, a vinyl sulphonyl compound, or a hardener derived from dioxane, an oxy-polysaccharide or an oxy plant gum; such hardener can be incorporated in the copolymer dispersion (latex). An Example illustrates the preparation and application of a copolymer of n-butyl acrylate, 2-acryloylamino-2, 2-dimethylethane-1-sulphonic acid and 2-acetoacetoxy ethyl methacrylate.
Patent GB-1049567-A (GB)
Title: Adjustable mechanism for an hydraulic press
Inventor: BASCOMBE HEWITT JOHN
IPC: B30B15/00
Filed: 1963-09-20
Abstract: 1,049,567. Hydraulic presses. STAFFORD TOOL & DIE CO. Ltd. Sept. 17, 1964 [Sept. 20, 1963], No. 37117/63. Heading B5F. An hydraulic press comprises a top beam 1 (Figs. 1, 2, not shown) supported by a plurality of columns 2 and means to move the beam in relation to all the columns simultaneously to adjust the shut height of the press. The upper parts of the columns are screw-threaded and engage in threaded bushes 3 which can be rotated simultaneously by means of a chain 5 passing round sprockets 4 adjustably attached to the bushes. The chain is driven by an electric motor 30 through a slipping clutch 33 and a sprocket 35. Limit switches 22, 23 (Fig. 3, not shown) limit the upward and downward movement of the top beam with respect to the columns by switching the motor off.
Patent GB-649092-A (GB)
Title: Improvements in or relating to control systems for polyphase alternating current electric motors
IPC: H02P27/02
Filed: 1946-12-19
Abstract: 649,092. Control of A.C. motors. IGRANIC ELECTRIC CO., Ltd. Dec. 19, 1946, No. 37404. Convention date, Dec. 31, 1945. [Class 38(iii)] A control system for a polyphase motor subject to overhauling loads comprises an auto-transformer and a saturable reactance controlling the voltage at certain of the motor primary terminals to afford voltage unbalance in the primary and means to saturate said reactance depending on the speed of the motor. The primary winding P of a motor M is supplied from lines L1, L2, L3 through an auto-transformer T and coils 18, 19 of a saturable reactance R. The secondary circuit S of the motor feeds a saturating winding 20 of the reactance through circuits 27, 28, 29, which are tuned for maximum impedance at zero motor speed, and a rectifier 26 so that saturation of the reactor varies as the secondary frequency and hence as the motor speed. A compensating winding 21 neutralizes the effect of the small currents in the circuits 27, 28, 29 at zero motor speed and is connected across a portion of the reactor winding 19 so that its action declines as the motor speed increases.
Patent GB-1514561-A (GB)
Title: Particulate polyurethane foam
IPC: A61F13/20
Filed: 1975-09-15
Abstract: 1514561 Lubricants PROCTER & GAMBLE CO 15 Sept 1975 [17 Sept 1974] 37823/75 Heading C5F [Also in Division C3] A free-flowing particulate polyurethane foam suitable for use as an absorbent body in disposable absorbent structures, e.g. sanitary napkins and tampons, contains between 0À5 and 20% wt. of a non-volatile liquid lubricant, based on the air dry weight of the foam, i.e. containing approximately 5% wt. of moisture, the lubricant having a viscosity between 10 and 1000 cp at 100 F. and being uniformly distributed throughout the foam. The lubricant may be hydrophilic but is preferably hydrophobic. Suitable lubricants include mineral oil, glycerine, monoglycerides, vegetable oil and silicone oil. The foam is preferably mensesphilic. The lubricant-treated particulate foam is prepared by applying the lubricant to the surface of the particulate foam preferably by spraying and preferably followed by mechanical mixing of the foam particles.
Patent GB-860681-A (GB)
Title: Improvements relating to alternating-current measuring apparatus
Inventor: STEVENS HENRY WILLIAM
IPC: G01R19/02
Filed: 1956-12-12
Abstract: 860,681. Current and voltage measurement. FERRANTI Ltd. Dec. 9, 1957 [Dec. 12, 1956], No. 37916/66. Class 37. Alternating current (or voltage) measuring apparatus including a rectifier, the directcurrent content of which is applied to an instrument responsive to the mean value of current through it and calibrated in R.M.S. values. A square-law device passing a current proportional to the square of the voltage across it being connected in series with the instrument. Fig. 1, the input to the diode bridge rectifier 16 is applied through an R.M.S. valve voltmeter consisting of a cathode follower input probe 11, a step attenuator 12, a negative feedback amplifier 13 and a driver stage 14 of an amplifier driving a cathode follower. The square law device 18 employs a silicon diode 19 having resistors 20, 21 in shunt and series respectively so that the diode obeys the law I=kV<SP>2</SP>. Milliameter 17 is of the moving-coil kind responding in proportion to the mean value of the current through it and will therefore indicate the mean value of the squares of the instantaneous values of the voltage to be measured, the instrument being, however, calibrated in R.M.S. values to read the voltage (R.M.S. value) directly. In the embodiment of Fig. 2 (riot shown), an R.M.S. ammeter is provided by feeding the rectifier directly through the secondary of a current transformer and the milliameter calibrated for R.M.S. values as before. Alternatively, the current to be measured may be fed direct to the rectifier, Fig. 3 (not shown). The diode bridge rectifier may be replaced by a full wave pushpull rectifier, or by a half-wave rectifier. It is stated in the Provisional Specification that the instrument may have a linear scale and the R.M.S. reading obtained by shunting the instrument with another square law device when the linear scale will give the required reading.
Patent GB-1442625-A (GB)
Title: Chemotherapeutic compositions
IPC: A61K31/428
Filed: 1973-08-10
Abstract: 1442625 Nitrofuran derivatives SANDOZ Ltd 10 Aug 1973 [14 Aug 1972] 37939/73 Heading C2C [Also in Division A5] Compounds of Formula IIId wherein X is sulphur or oxygen and R 5  is hydrogen, phenyl or phenyl mono- or polysubstituted by chlorine, bromine, fluorine, iodine, trifluoromethyl, hydroxy, nitro, benzyloxy, amino, C 1-6  alkyl, C 1-6  alkoxy or C 1-6  alkylthio or by the group -NHR 7 , -COOR 7 , -CONH 2 , -CONHR 7 , -OCH 2 CH 2 OH or wherein either each of R 7  and R 8  is independently C 1-6  alkyl which is unsubstituted or substituted, phenyl, or mono- or polysubstituted phenyl, or R 7  and R 8  together with the nitrogen atom signify a 5- or 6-membered heterocycle containing one or more further hetero atoms selected from oxygen, sulphur and nitrogen, and which is unsubstituted or substituted are obtained by reacting a compound of Formula X or of Formula Xa wherein X is as defined above, and R<SP>1</SP> 7  is C 1-6  alkyl, with a compound of Formula XI wherein R 5  and R<SP>1</SP> 7  are as defined above, or a compound of Formula X with a compound of Formula XIa wherein R 5  and R<SP>1</SP> 7  are as defined above, in the presence of a Friedel-Crafts catalyst, and hydrolysing the resulting complex. Compounds of Formula IIIe wherein X and R 5  are as defined above and R 9  is -NH.CO.R 10  wherein R 10  is (i) a radical of Formula VII (ii) a radical of Formula VIIa wherein n is an integer from 9 to 18, and Y is the acid radical of a reactive ester, (iii) a radical of Formula VIIb wherein n is as defined above, and R 11  is hydrogen, acetyl or benzoyl, or (iv) a radical of Formula VIIc wherein X and R 5  are as defined above, with the proviso that in this case each of two Xs and each of the two R 5 s in the compound IIIa have the same significance, or R 9  is wherein R 12  is hydrogen or a radical of Formula VIII wherein R 11  is as defined above, or R 9  is wherein R 12  is as defined above, or R 9  is a heterocycle having 5 or 6 ring members, containing one or more hetero atoms selected from sulphur, oxygen and nitrogen, and which is unsubstituted or substituted, or is phenyl, or phenyl mono- or poly-substituted by chlorine, bromine, iodine, fluorine, hydroxy, nitro, amino, trifluoromethyl, C 1-6  alkyl, C 1-6  alkoxy, C 1-6  alkylthio or by a group -NHR 7 , -COOR 7 , -CONH 2 , -CONHR 7 , -OCH 2 CH 2 OH or wherein R 7  and R 8  are as defined above are obtained by reacting a compound of Formula IIId with a compound of Formula XII wherein R 9 <SP>1</SP> has the same significance as R 9 , except that R 10  may not signify the radical of Formula VIIc or with 0,0-dicarbazoyl resorcine.