baber/WOPTO huggingface dataset:
Patent GB-1293132-A (GB)
Title: Improvements in or relating to temperature controllers
Inventor: HAYNES ANTHONY CHARLES RENDELL
IPC: B29C48/92
Filed: 1968-11-12
Abstract: 1293132 Automatic temperature control systems GULTON EUROPE Ltd 11 Nov 1969 [12 Nov 1968] 53660/68 Heading G3R In a temperature control system in which an error signal plus P.I. or P.I.D. terms provides a first output signal to control heating power, when the heating power is less than a determined part of the maximum e.g. 20%, a second output signal derived from the first signal controls cooling power incrementally from a minimum to a predetermined level as the heating power falls. The cooling power may rise to a maximum value as the heating power falls to zero, or the cooling power may increase to a maximum outside the range of heating values. Where cooling power requirement is greater than that of the heating, the arrangement may work oppositely, so that the heating signal is generated in the lower ranges of the cooling power signal. The signal characteristics may be linear or non linear and may be artificially adjusted to a desired pattern. In a plastics processing machine 10, a signal from 9 thermocouple 12 is applied together with a set point signal 19 to a comparator 18 which is connected to a three term controller amplifier 20 which through a pulse generator fires a thyristor arrangement. The thyristors may be controlled with variable angular delay, or proportional groups of complete half cycles may be passed through a heater 11. The output from amplifier 20 is in the form of pulses substantially equal to and synchronised with pulses of mains frequency in a manner known per se e.g. as disclosed in Specification 1021425. The pulses are also fed to a pulse counter and diode pump 25, detailed in Fig.4 (not shown) which provides an input proportional to heating power to an integrator 26 having an output current varying linearly e.g. 0-10mA in a manner inversely to heating power, which is applied to a motor 28 actuating a valve 15 coupled to a feedback potentiometer (not shown) connected in a positional feedback circuit in unit 27. Amplifier 26 also actuates a fan motor relay which energizes a fan just as the amplifier output departs from zero. An over temperature alarm 71 is energized on failure of the cooling system and another signal may be provided when the cooling is at a maximum value to indicate that the range of operation is incorrect. The circuit given in Fig.4 (not shown) provides zero output at the determined level, e.g. 20% heating power and maximum output at zero heating but other ranges are envisaged in the Specification. The circuit has a time constant of 20 seconds hence gives a steady output for intermittent input. Other types of controller e.g. pneumatic may be employed and on/off proportional control may be used in place of the continuous proportional control described.
Patent GB-1445840-A (GB)
Title: Illuminating panel for instrument consoles
IPC: B60Q3/04
Filed: 1972-11-27
Abstract: 1445840 Lamps THORN ELECTRICAL INDUSTRIES Ltd 26 Nov 1973 [27 Nov 1972] 54781/72 Heading F4R A laminated illuminating panel for instrument consoles comprises a light-transmitting core 18 with openings 11, 12, and 13 for switch shafts and instrument dials, an opaque layer 29 on one face of the core, the layer having openings corresponding to the openings 11, 12, and 13 and perforations arranged to form legends 15, a plurality of lamps (19) within the core for back illumination of the legends and side illumination of the dials and switches, and a printed circuit 21 deposited on the other face of the core for supplying power to the lamps. The printed circuit, which is protected by an insulating layer 25 is connected to a two-pole input terminal (22). The core 18 may be opalescent but is preferably transparent, a diffusing layer being interposed between the core and the opaque layer 29. The lamps (19) are preferably held in pockets (20) in the core by transparent potting compound but may alternatively be removably mounted in lamp sockets incorporated in the panel. The layer 29 may include a thin transparent substrate forming windows over the areas 30 and 31.
Patent GB-1160360-A (GB)
Title: Electrogasdynamic Generation of A.C. Electrical Power.
IPC: H02N3/00
Filed: 1966-08-05
Abstract: 1,160,360. E.H.D. generators. GOURDINE SYSTEMS Inc. 5 Aug., 1966 [5 Aug., 1965], No. 55083/68. Divided out of 1,154,205. Heading H2A. An E.G.D. generator includes two ducts for the flow of gas, e.g. power station smoke, the corona electrode of one duct being energized by the corona electrode of the other. As described, the system comprises a pair of converters, 100, 101, converter 100 including a nozzle-forming corona electrode 105, an attractor electrode 106 and a shield electrode 107, converter 101 being similar. Switching 129, 130 permits operation in A.C. or D.C. modes. In the A.C. mode the frequency is determined by the time constants of resistors 137. 138 and capacitors 134, 135.
Patent GB-1397589-A (GB)
Title: Low battery output detection circuits
IPC: H04N1/40
Filed: 1972-11-30
Abstract: 1397589 Monitoring battery voltage STATITROL CORP 30 Nov 1972 55398/72 Heading G1U [Also in Division G4]  A battery powered monitoring circuit provides an intermittent signal in the event of an abnormal condition be sensed, or in the event of a low battery voltage. Smoke Detection. Presence of smoke in ion chamber 14 changes its resistance, thus changing the potential at the gate of FET 16 to vary its source-drain current. Transistor 17, capacitor 24 and transistor 26 provide positive feedback to FET 16, the circuit functioning as a relaxation oscillator, whose mark/space ratio varies in dependence on the resistance of chamber 14 from a continuous "space" (no oscillation) when no smoke is present up to, possibly, a continuous "mark" when maximum smoke is present. The output from transistor 17 also controls SCR 22 to intermittently sound alarm 30 at a rate depending on the amount of smoke. Low Battery Voltage Detection. Low battery voltage is sensed by potential divider R6, R7 to vary the bias on transistor 26. The circuit will again commence to oscillate, but with a very short "mark" compared with that produced by smoke.
Patent GB-1411628-A (GB)
Title: 2-substituted unsaturated esters and their use as insect control agents
IPC: A01N37/06
Filed: 1972-11-30
Abstract: 1411628 #,# - Unsaturated - α - substituted esters ZOECON CORP 30 Nov 1972 [6 Dec 1971] 55421/72 Heading C2C Novel esters of Formulµ A, IV and V wherein each of m and n, which may be the same or different, is 0, 1, 2 or 3; each of R, R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> is independently C 1-6  alkyl; R<SP>14</SP> is -H or C 1-6  alkyl; X is -Cl, -OH or C 1-6  acyloxy; Z is -H, C 1-6  alkyl, C 1-6  alkoxy or C 1-6  alkylthio; R<SP>5</SP> and R<SP>6</SP> are each, independently -H or C 1-6  alkyl; Z<SP>11</SP> is -H, C 1-6  alkyl, C 1-6  alkoxy or C 1-6  alkylsulphonyl and Z<SP>1</SP> is -H, or taken together with either Z or Z<SP>11</SP> represents a carbon-carbon bond, are prepared, in the case of the 2-chloroesters of Formula A, by reacting an allylic alcohol of Formula I with a chloro-diester of Formula II in the presence of a basic catalyst, generally at 100-225 C. Alcohol formed is removed during the reaction. The 2-chloroesters of Formula A are also prepared by reacting an allylic alcohol of Formula I with a trialkyl orthochloroacetate in the presence of a catalyst at about 100-200 C. The 2-acyloxy esters of Formula A are prepared by reacting the corresponding 2-chloro esters with an alkali metal carboxylate in an aqueous alcohol at 0-25 C. The novel 2- hydroxy esters of Formula A are prepared by mild hydrolysis of the corresponding 2-acyloxy ester with base in aqueous alcohol, generally at 0-20 C. The 2-oxo esters of Formula IV are in turn obtained from the corresponding 2-hydroxy esters by oxidation using Cr0 3 /pyridine or MnO 2 /CHCl 3  at about 0 C. During the oxidation any alkylthio group represented by Z in the precursor is oxidized to the corresponding alkylsulphonyl group (Z<SP>11</SP>). The novel 2-amino esters of Formula V are prepared by reacting the corresponding 2- chloro ester of Formula A with a stoichiometric excess of ammonia or amine in an organic solvent at about 0 C. a,#-Unsaturated esters of Formula B are obtained from the novel esters of Formula A by elimination of HX, generally by heating in an organic solvent when X is chloro or bypyrolysis when X is other than chloro. The starting materials of Formula I are obtained by reaction of an aldehyde of Formula VI with a Grignard reagent of formula, wherein X<SP>1</SP> is Br, Cl or I. The compounds of Formulµ A, IV, V and B are insecticides.
Patent GB-1380559-A (GB)
Title: Method of and apparatus for locating open-celled reticular sheets
IPC: E04B1/84
Filed: 1970-12-02
Abstract: 1380559 Laminates SHORT BROS & HARLAND Ltd 1 Dec 1971 [2 Dec 1970] 57323/70 Headings B5N and B4B In the production of a composite structure for noise attenuating purposes in which a cellular core in the form of an open-celled reticular sheet is bonded to two facing sheets one of which is perforated by means of sheets of thermoplastic adhesive, the open-celled reticular sheet 10 is located on a jig 11 comprising a base 12 and a plurality of lateral rows of projecting members 16 mounted thereon each of which is restrained against movement relative to the base in the lateral direction but is individually capable of a degree of movement in the longitudinal direction to enable a sheet with non- uniform or irregular cell pitch dimensions to be located on the base, so that each projecting member of each row of the plurality of lateral rows of projecting members extends into a corresponding cell of the sheet and a sheet of thermoplastic adhesive 31 placed over the ends of the cells of the sheet is pierced substantially in the centre of each cell with piercing members 28 and heated to cause reticulation thereof to form a bead of adhesive around the end edges of each cell by which the perforated facing sheet is adhered to the core. A backing sheet is also bonded to the opposite surface of the core to form the composite structure. Prior to piercing the adhesive film may be heated to cause it to adhere to the edges of the cells of sheet 10 and then cooled. The base of the jig may comprise spaced boards 13, 14, the upper board being provided with longitudinally extending slots 15 through each of which a projecting member 18 of bar 17 provided with axial hole 19 extends, a row of fixed pegs 35 being provided at one end of the base. Spring loaded balls 29 may extend from the surface of each guide 22 between the side faces of ends of two adjacent bars 17 to hold the jig relatively to the piercing assembly but being retracted to allow forward movement of the jig upon the application of suitable force so that the next bar 17 is positioned beneath the piercing members. In an alternative arrangement the base comprises a pair of parallel longitudinal guides between which the rows of projecting members are restrained, each row of projecting members being provided with a pair of locating holes into which a pair of guide posts of the piercing assembly are located to align the piercing head with the cells of the sheet.
Patent GB-1324500-A (GB)
Title: Anti-inflammatory derivatives of 2- 3-trifluoromethyl-anilino- benzoic acid
Filed: 1971-12-10
Abstract: 1324500 2 - (m - Trifluoromethylanilino)- benzoic acid derivatives TROPON GmbH [trading as TROPONWERKE DINKLAGE & CO] 10 Dec 1971 [16 Dec 1970] 57393/71 Addition to 1285124 Heading C2C Novel 2 - (m - trifluoromethylanilino) - benzoic acid derivatives of the general formula wherein X is an -O-CH 2 -CO- group or a direct bond and R is a hydrogen atom or a C 1-4  alkyl group, are prepared (a) when X is an -O-CH 2 -CO- group and R is a C 1-4  alkyl group, by reaction of an alkali metal 2-(m-trifluoromethylanilino)-benzoate with a corresponding N-chloroacetyl-glycine ester, (b) when X is a direct bond and R is a C 1-4  alkyl group, by reaction of 2-(m-trifluoromethylanilino)- benzoyl chloride with a corresponding glycine ester and (c) when R is a hydrogen atom, by acid hydrolysis of a corresponding ester. Pharmaceutical compositions having antiinflammatory activity comprise, as active ingredient, a 2-(m-trifluoromethylanilino)-benzoic acid derivative of the above general formula, together with a pharmaceutically acceptable carrier.
Patent GB-1240019-A (GB)
Title: Thread wiping device
IPC: D05B65/00
Filed: 1969-11-26
Abstract: 1,240,019. Needle thread wiper. SINGER CO. 26 Nov., 1969 [2 Dec., 1968], No. 57778/ 69. Heading D1G. A needle thread wiping device comprises a guide 62 supporting a thread wiper 38 operable by means 23 (a rotary solenoid as described) through a linkage comprising a crank 30 connected to the wiper by a link 32, the arrangement being such that when the means 23 is de-energised, to withdraw the wiper and trap the thread wiped, the linkage is in an overcentre position. The wiper, as a result, cannot be inadvertantly drawn towards the needle by needle thread which has not been severed. The guide is supported on a presser bar bushing 50 by clamp blocks 51, 52, 58 and the operating means is secured to the machine frame by a bracket 21. A stop (90, Fig. 4 not shown,) defining the overcentre position may be provided on bracket 21, alternatively the block 35 connecting wiper and link may be provided with a stop (100, Fig. 5 not shown) to achieve this result. The device may be associated with the thread cutter described in Specifications 1,179,964 and 1,179,965 the operation of the operating means controlled by the arrangement disclosed in Specification 1,179,965.
Patent GB-1357624-A (GB)
Title: Process for the manufacture of alkoxysilanes and alkoxypolysiloxanes
IPC: C07F7/18
Filed: 1971-12-13
Abstract: 1357624 Preparation of alkoxysilanes and polysiloxanes WACKER-CHEMIE GmbH 13 Dec 1971 [11 Dec 1970] 57784/71 Headings C3S and C3T Alkoxysilanes or substituted alkoxysilanes are produced continuously by reacting a chlorosilane with an alcohol or substituted alcohol in a column provided with a reflux condenser and maintained at an elevated temperature, wherein (a) the chlorosilane is introduced at the head of the column and the alcohol is introduced in the gaseous form at the foot of the column or at a point in the lowest one-third of the length of the column, (b) the reaction product is removed from the column at a point below the point of introduction of the alcohol or from the foot of the column, (c) for at least two-thirds of the zone between the inlet of the alcohol and the inlet of the chlorosilane the temperature in the column is maintained, over the entire internal cross-section of the column, above the boiling point of the alcohol used at the pressure prevailing in the column, and (d) during the reaction excess alcohol boiling under reflux is constantly present at the head of the column. The above process may be modified to provide as products alkoxypolysiloxanes and substituted alkoxypolysiloxanes by conducting it in the presence of water, which is preferably introduced in gaseous form at any convenient point in the column. If necessary inert solvents may also be present. Examples describe the preparation of methyltriethoxysilane, phenyltriethoxysilane, ethyl - orthosilicate, vinyltriethoxysilane, dimethyldiethoxysilane, gamma - chloropropyltrimethoxysilane, methyl trimethoxysilane, methyl tris(beta - methoxyethoxy) - silane, methyltriisopropoxysilane, methyl tri - nhexyloxysilane and low molecular weight methylethoxy polysiloxanes.
Patent GB-580341-A (GB)
Abstract: 580,341. Centrifugal separators. BEDALE, P. W. July 3, 1944, No. 12671. [Class 23] [Also in Group XXVII] The fuel supply of a carburetter is deaerated in an ante-chamber 2 before it passes to a supply chamber 4. The fuel is delivered to the supply chamber 4 through a port 3 controlled by a valve adjusted by a diaphragm which is loaded by an engine driven governor 1 and subjected to the pressure in the chamber. The ante-chamber 2 is supplied by a pump 16 and contains the governor which by its rotation causes fuel to circulate by centrifugal action through a float chamber 9, any air or vapour collecting around the governor axis whilst de-aerated fuel is delivered through a duct 5 to the supply chamber. When sufficient air or vapour has collected in the ante-chamber 2 to uncover both passages 8-9, the fuel circulation through the float chamber ceases, and air &c. enters the float chamber escaping past the float operated valve 11. The pressure in the ante-chamber is maintained above atmospheric pressure by a spring loaded relief valve 14 carried by a diaphragm 15. Specifications 429,682 and 560,196, [both in Group XXVII], are referred to.
Patent GB-1292296-A (GB)
Title: Improvements in or relating to arrangements for advancing a plurality of samples to a fixed station
IPC: G01N1/12
Filed: 1969-12-03
Abstract: 1292296 Liquid transfer devices; chromatographic sampling and elution CHOAY SA 3 Dec 1969 [16 Dec 1968] 59015/69 Heading B1X A liquid transfer device comprises a vertically reciprocable distributor 3, Fig. 1, having elution heads 7a, 7b connected to an elution pump (not shown) via tubes 9a, 9b. Upon descent of the distributor the heads 7a, 7b engage containers 4a, 4b located along one radius of an indexable turntable 1. The turntable 1 is indexed by means of the abutment of a peripheral peg 12 by a lower end of an inclined surface 16, Fig. 2, of a lever 13 which pivots about pin 14 until its upper arm 13a engages a surface 19, by which time the peg 12 has travelled in the direction of arrow 17 whereupon the lower end of the surface 16 contacts a following peg 12a so preventing further turntable movement. The distributor 3 is prevented from descending further by means of its base 22 engaging table 23, however the elution heads continue to descend against the bias of a spring 24 to engage the containers 4a, 4b The device has particular application in the chromatographic analysis of amino acids when ion exchange resin filled columns are placed below the containers 4a, 4b, which in this case have perforated bases, so that the samples and eluents can be passed to the columns from the elution heads. In chemical analysis samples may be withdrawn from the containers or samples and/or reagents added thereto.
Patent GB-1217170-A (GB)
Title: High modulus carbonaceous material and apparatus and methods for making the same
Inventor: GIBSON DAVID W
IPC: D01F9/16
Filed: 1967-12-29
Abstract: 1,217,170. Carbon fibres. HITCO. 29 Dec., 1967 [20 Feb., 1967], No. 59211/67. Heading C1A. Carbon fibres having a high modulus of elasticity are prepared by resistively electrically heating to above 2000‹ C. a short span of a moving continuous strand or web of conductive, amorphous carbon fibres for up to 10 seconds in an inert atmosphere, and simultaneously stretching the fibres in the strand by 10 to 50% of their original length. Non-conductive fibres are preheated to between 400‹ and 1900‹ C. in an inert atmosphere either radiantly or resistively electrically, in order to render them conductive. The electrical heating is effected by passing the strand over electrodes, which are preferably of the roller type, so as to complete an electric circuit with the short span of strand or web. Additional systems of rollers are used to stretch the fibres during heating. The stretching may either be effected by applying to the yarn a constant force, or providing a constant stretch.
Patent GB-1215723-A (GB)
Title: Speed control circuit for a single phase commutator electric motor
IPC: H02P25/14
Filed: 1967-12-29
Abstract: 1,215,723. Control of motors. JANOME SEWING MACHINE CO. Ltd. 29 Dec., 1967 [29 Dec., 1966], No. 59241/67. Heading H2J. A commutator motor M is energized from a single-phase source through a symmetrical semi-conductor SSSM which is switched to the conducting condition by a triggering circuit including a capacitor C1 which is charged from the supply via a rectifier D and resistor R2. The capacitor is connected to one side of a second symmetrical semi-conductor SSST, the other side of which is connected to a potential divider VR, R1 across the supply. The negative charge on C1 gradually increases until the voltage across SSST is sufficient to break it down, thus applying a pulse through transformer L1, L2 to break down SSSM. By adjustment of VR, breakdown can be made to occur over a range extending from intermittent unidirectional half-cycles only to every halfcycle in both directions (Fig. 4, not shown). The motor may drive an intermittent load such as a sewing machine. In an alternative embodiment (not shown) L2 is in series with a capacitor across SSSM.
Patent GB-1370810-A (GB)
Title: Automatic lathe
IPC: B23B7/02
Filed: 1971-12-22
Abstract: 1370810 Automatic lathes SEIKO SEIKI KK 22 Dee 1971 [30 Dec 1970] 59644/71 Heading B3T In an automatic lathe having a quill 6, i.e. a rotary work spindle 6 mounted in a headstock 3, means is provided for effecting axial feed movements of the spindle and for actuating the-chuck carried thereby to grip or released workpieces without stopping the rotation of the spindle. The spindle or quill is driven by a motor 7 coaxially mounted therewith and the axial feed of the spindle is produced by a plurality of cams 35, 35<SP>1</SP>, 3511 each for producing a particular feed movement. The cams are mounted on a shaft 12 parallel to the spindle 6 and which is driven from a motor 10, the cams engaging a slide member 14 which actuates a bell crank lever 15 pivoted on the headstock one arm of the crank engaging the slide and the other arm engaging the spindle sleeve to displace it axially in accordance with the displacement of the slide 14. The displacement of the spindle may also be preadjusted by means of a screw 34 which adjusts the position of the pivot pin 33 in the lever arm relative to the lever pivot 32. The actuation of the chuck in the spindle is effected by a gear and sector device 40, 42 mounted on the headstock and operated by cam means 46, 47 mounted on the shaft 12. The gear 40 engages a toothed region on the spindle sleeve which is rotatable to actuate a ball and helical slot device associated with a draw tube within the spindle assembly to effect a sequential axial displacement of the tube and henee actuate the chuck to grip or release a workpiece. Cutting tools are mounted in lever operated tool slides 18 radially disposed to the spindle axis on the headstock and further axially operated tools i.e. drills and tops &c. one carried on the machine frame portion 4 and are actuated from an independent motor 13.
Patent GB-1460753-A (GB)
Title: Thermal storage space heater
IPC: F24H3/04
Filed: 1973-12-28
Abstract: 1460753 Electric incandescent lamps M BUISSON 28 Dec 1973 [28 Dec 1972] 60108/73 Heading H1F [Also in Division F4] A carbon filament lamp with a rating of 100-150 watts has a reflective film on the portion of the surface of the bulb which extends from the cap to the equator.