baber/WOPTO huggingface dataset:
Patent GB-1189158-A (GB)
Title: Digital to Analog Converters
IPC: H03M1/80
Filed: 1967-08-09
Abstract: 1,189,158. Digital to analogue converters; binary coded decimal counters. WESTING- HOUSE ELECTRIC CORP. 9 Aug., 1967 [19 Aug., 1966], No. 36600/67. Headings G4D and G4H. A digital to analogue converter includes a first counter 24 (Fig. 1) preset to a desired count and a second counter 10 into which pulses are fed from a pulse generator 18 via a control circuit 16, the counts in the counter being compared by a comparator 22 which supplies a signal to the control 16 to stop the count when equality occurs, the output from counter 10 being connected to a resistance network 32 to derive an analogue signal representing the count. In the preferred embodiment for controlling the load or speed of a turbine, the counter 24 comprises a stepping switch for each decade, stepped to the required position either by push buttons or a computer, the output from the switches being converted into binary coded decimal information before being fed to the comparator 22. The outputs of the stepping switches are displayed either by masks in front of lamps or by using neon tubes. The second counter 10 is a reversible binary coded decimal counter, each of the four stages in each decade including two reed relays (Y1, Y2 and X1, X2, Fig. 6, not shown). Each stage is connected to the input terminals via contacts controlled by one of the relays in each of the preceding stages. The comparator comprises a ladder network including contacts operated by relays connected to the outputs of the counters. When the count in counter 24 is greater than that in counter 10 a relay G is energized to actuate an associated contact G1 (Fig. 8) so that pulses are accumulated positively in counter 10 until equality occurs. When the preset count is less than the count in counter 10 relay G is de-energized so that pulses are accumulated negatively in the counter. To prevent the turbine operating at a higher speed or greater load than desired, contacts in a maximum desired count detector 26 (Fig. 1) are selectively operated, the output of counter 10 being connected to the detector 26 so that when the counter reaches the maximum a relay SRM or LRM (controlling speed and load respectively) is de-energized to open an associated contact FRM1, LRM1 (Fig. 8) and arrest the accumulation of pulses in the counter 10. The detector 26 consequently overrides the preset count in counter 24.
Patent GB-1341303-A (GB)
Title: Electric self-teaching system
IPC: G09B7/06
Filed: 1971-08-05
Abstract: 1341303 Self-teaching apparatus GAKKEN CO Ltd 5 Aug 1971 [5 Aug 1970 21 Aug 1970] 36781/71 Heading G5G An educational appliance includes a device 10 comprising a rectangular insulating base 12 formed with conducting portions 16 interconnected into a plurality of groups, e.g. twelve, each group being connected by printed wiring to a separate terminal (17) on the top margin of the base (Fig. 7, not shown); an insulating sheet 20, e.g. of sponge rubber, formed with perforations 21 which overlie the portions 16; a conducting sheet 22 of metal or of plastics faced with conducting material; a plastics cover 11 which envelops the superposed components 12, 20 and 22; and a clamp 25 adopted to hold a work sheet (51), Fig. 9 (not shown), in position on the device 10 which is connected by way of a socket 44 and a lead 42 to a display device having a screen 37 covering a plate member formed with a plurality of symbols, one for each above mentioned group, behind which lamps (47), Fig. 8 (not shown), are positioned. Upon depression of a selected area representing a chosen answer to a question posed on the work sheet, by means of an implement 32, contact is established between the sheet 22 and the conducting portion 16 in that area. This closes a circuit to the corresponding one of the lamps (47) causing an associated symbol to be displayed on the screen 37, the symbols together with directions on the work sheets leading the student through a programmed sequence of instruction.
Patent GB-873761-A (GB)
Title: Improvements in or relating to snap action electric switches
Inventor: BROCK LESLIE
IPC: H01H13/28
Filed: 1958-11-20
Abstract: 873,761. Snap-action switches; retractive switches. BROOKHIRST SWITCHGEAR Ltd. Nov. 3, 1959 [Nov. 20, 1958], No. 37327/58. Class 38 (5). A switch that may be used for example as an auxiliary switch in electric contactor gear or as a limit switch in electrically-operated machine tools, comprises a contact member 16 moving between pairs of fixed contacts 12, 13 and 14, 15. Two helical springs 24, 25 are compressed between lugs 19, 20 on the contactmember 16 and lugs 22, 23 on an operating push-button member 21, to provide a deadcentre toggle action. A retractive spring 26 may be omitted and the operating bar 21 extended through the switch. The bar 21 and its lugs 24, 25 may be made of nylon.
Patent GB-1534120-A (GB)
Title: Method of preparing nickel alloy parts for plating
IPC: C25D5/40
Filed: 1977-09-07
Abstract: 1534120 Electro-etching of nickel alloy part prior to plating UNITED AIRCRAFT PRODUCTS Inc 7 Sept 1977 [15 Sept 1976] 37331/77 Heading C7B A Ni alloy e.g. Inconel (registered Trade Mark) part is prepared for electro-plating e.g. with Ag by electro-etching it as anode in an electrolyte bath e.g. H 2 SO 4  solution wherein etched metal is oxidised, discontinuing current flow and allowing the part to soak in the same bath to dissolve oxides, removing the part from the bath and electrodepositing a plating base material e.g. Ni as strike coat penetrating and interlocking with etched surface portions of the part.
Patent GB-578730-A (GB)
Title: Improvements in or relating to electrical systems for determining the direction of movable objects
IPC: G01S1/02
Filed: 1938-12-23
Abstract: 578,730. Infra - red ray directionfinding devices. CLARK, H. A. M. Dec. 23,' 1938, No. 37404. [Class 40 (iii)] [Also in Group XXXVI] An apparatus for giving audible or visible indication of the direction of an object which radiates infra-red rays comprises one or more pairs of heat responsive devices, such as bolometers B5, B6, Fig. 2, one on each side of the optical axis of a spherical reflector R, and each separately connected to interacting circuits producing two outputs proportional respectively to sum and difference of the inputs, the two outputs being applied to an aural and/or visual indicating device in which they cooperate to produce an indication of the direction of the object in relation to the heat-responsive devices. In one arrangement, Fig. 1, bolometers B1, B2, B3, B4 are connected in Wheatstone bridge circuits including resistances R1, R2, R3, R4 and inductive arms L1, L2, L3, L4 and fed with A.C. current through a trans. former T1. The output of the Wheatstone bridge circuits are connected through transformers T2, T3 to amplifiers A1, A2 leading to the deflecting plates of a cathode-ray tube CRO. Specification 578,729 is referred to in this connection. In another arrangement, Fig. 2, the bolometers B5, B6 are connected through separate channels terminating in transformers T6, T7 interconnected and serving to operate an aural indicator. Specifications 371,824 and 384,325 also are referred to.
Patent GB-375578-A (GB)
Abstract: 375,578. Adjusting gun sights and the like. SOC. DES ETABLISSEMENTS KRAUSS-OPTIQUE ET M•CANIQUE DE PRECISION, 18, Rue de Naples, Paris. July 18, 1931, No. 20629. Convention date, July 21, 1930. Addition to 354,361. [Class 92 (ii).] Micrometer devices for effecting small angular adjustments, particularly in sighting instruments for firearms as described and claimed in the parent Specification are provided with means to effect the differential adjustment of the discs B, C by a single adjustment of the disc B instead of by separate adjustments of the said discs. In the form shown, the disc B is connected with the disc C by a pin P, one end of which engages a spiral groove w . . z in a plate K fast with the disc B the other end engaging an inclined slot O in the disc C. The pin is guided radially in a fixed member L so that during a full rotation of the disc B the disc C is moved through the distance corresponding to one tooth of the coarse adjustment 3d on the sight member D and back again. During the return movement which resets the parts, the pin P moves in the portion z, w of the groove, whilst the disc D is declutched from the disc C by a projection H on the plate which acts through a pin Q to lift and hold the disc D. For fractional adjustments of a tooth 3d the disc B only is turned and the pin P moving in the groove w . . z conveys to the disc C through the slot O the appropriate reverse rotation.
Patent GB-842487-A (GB)
Title: Improvements in and relating to admixtures of unalloyed powder
IPC: C22C32/00
Filed: 1957-12-03
Abstract: An admixture of unalloyed powders for forming strong, oxidation-resistant bodies or coatings has a composition, in atoms per cent, within the range: .Mo, W, Ta, Nb and/or V.10-40 .Si.20-65 .Cr, Ti and/or Zr.2-16 .B.2-25 .Al.3-30 B may be introduced as a boride of Cr, Ti and/or Zr.  The mixture may be used for forming self-sealing coatings, resistant to oxidation at high temperatures on carbon, tungsten, molybdenum and other refractory metals and their alloys, particularly for components of turbo-jet engines.  The mixture may be applied as a coating by means of a spray gun using an oxyacetylene flame, the powder being aspirated into the flame using an argon stream passing through a powder dispenser.  The coating so applied requires heat-treatment, e.g. at 1100 DEG C. for 3 hours in a hydrogen atmoshere to remove porosity.  The mixture may also be applied by detonation or by dipping, painting or spraying in the form of a slurry followed by heat treatment in an inert atmosphere. Sintered bodies may be formed by hot pressing in a carbon die e.g. under 2000-3000 pounds/sq. in. at 1500 DEG C. for 15 minutes. Specifications 742,387, 742,458, 742,459 and 742,460 are referred to.
Patent GB-1235116-A (GB)
Title: Tensioning apparatus
Inventor: DORNEY JOHN
IPC: B65B13/22
Filed: 1967-08-16
Abstract: 1,235,116. Package binding machine; tensioning. POWER INDUSTRIES Ltd. 15 Aug., 1968 [16 Aug., 1967], No. 37690/67. Heading B8C. A tensioning device in a package binding machine comprises a primary device to draw a loop of tape on to a package and apply an initial tension thereto and a secondary device to apply the final tension, the secondary device operating through a limited stroke but may repeat its tensioning stroke a sufficient number of times to obtain the required tension, irrespective of the tape extension. As shown in Fig. 1, the primary device 11 comprises endless belt 70, tensioned by jockey pulleys 72, driven from a reversible motor M (not shown) through drive pulley 71 and also passing round pulley wheels 69, and a roller 67 as shown. Roller 67 and pulleys 69 are mounted between upstanding walls 68 of U-shaped bracket 63 which is carried by piston-rods 61 of pneumatic cylinders ET forming the secondary device. A tensioning gripper 75 is pivoted on bracket 63 and urged in a clockwise direction by spring 76 causing adjustable jack screw 78 to abut member 79 maintaining a clearance between the base 77 of the gripper and bracket 63. From the position of Fig. 1, binding tape, e.g. of polypropylene, is fed by device 11 through bracket 63 between belt 70 and pulley 67, under gripper 75, through member 79, throughan aperture 15a in a gripper 15, over a nose-plate 18, between a gripper 19 and the nose-plate 18, around the package either manually or automatically, beneath gripper 15 and again over the nose-plate 18 to form a loop having overlapping ends. Gripper 15 is then actuated to grip the tape by a trip switch which also reverses motor M to apply the initial tension to the tape. When the desired tension is reached, the torque on the motor M is opposed thereby causing the body of the motor M to twist which operates a switch to actuate the secondary tension device. Piston-rods 61 are retracted thereby causing gripper 75 to grip the tape and the final tension is applied thereby. Gripper 19 is closed on to the tape against nose-plate 18 while cylinders ET return to the position of Fig. 1, slack tape being released. A limit valve (80, Fig. 2, not shown) actuates gripper 19 if the desired final tension is not achieved in one stroke of cylinders ET. The overlapping ends of the tape are friction-welded together and severed from the tape supply.
Patent GB-1358845-A (GB)
Title: Dynamo electric machines
IPC: H02K9/19
Filed: 1970-08-05
Abstract: 1358845 Dynamo-electric machines ROTAX Ltd 27 July 1971 [5 Aug 1970] 37775/70 Heading H2A In a dynamo electric machine, e.g. an alternator, having at least one component mounted for rotation on a rotatable shaft 13 having an axial bore 17 for the passage of cooling liquid, there is connected to the shaft for rotation therewith a de-aeration chamber 19 in communication with the bore 17 whereby the liquid will flow to the chamber where it is at least substantially de-aerated by centrifugal force. Upon entering the chamber the liquid due to this force forms on the wall a layer of which the de-aerated liquid is radially outermost and flows through an opening 35 to a passage 36 in an annulus 23, from which it is removed by a pump for recirculation. Excess foam or liquid in the chamber 19 will be discharged through apertures 21 in circumferentially spaced baffles 20, or radial tubes. A rectifier 37 may be mounted in the chamber 19. The component is the rotor assembly 14 upon whose windings 15 the liquid is discharged by a distributer 18, and the liquid may be that used in the lubricating system of a driving variable ratio transmission unit 25. Such unit comprises an input gear train 28 which drives through a lay shaft 27 a central disc 30; a continuously variable ratio transmission is conveyed through discs 29, 31 to its output shaft 24, which is connected through a load shaft 26 to the shaft 13, by two sets of friction rollers 32, 33 whose axes can be tilted to vary the ratio.
Patent GB-1116523-A (GB)
Title: Process for producing primary alcohol
Inventor: WALSH WILLIAM LOUIS
IPC: C07C17/08
Filed: 1965-09-04
Abstract: Primary alcohols, in which at least one carbon atom is directly attached to four other carbon atoms, are prepared by reacting a secondary alkyl chloride or bromide with 2 molecules of ethylene, or a tertiary alkyl chloride or bromide with 1 molecule of ethylene at -60 DEG  C. to 150 DEG  C. at a pressure of 0-70 kg/cm.2 g. for 1 minute to 4 hours in the presence of 0.5-30% by weight, based on alkyl halide, of AlCl3, FeCl4, BiCl3 or ZnCl2, reacting the resulting primary alkyl halide with 0.1-10 mols. of a monobasic carboxylic acid at 100-400 DEG  C., at a pressure of 0-210 kg/cm.2 g. for 1 minute to 48 hours to obtain the coresponding ester and hydrolysing the ester to the required primary alcohol.  The alkyl halides are defined as having no halogen atoms attached to adjacent carbon atoms.  The secondary and tertiary alkyl halides can be made by reacting an olefin with HCl or HBr or by chlorination or bromination of a saturated hydrocarbon.  The esterification step is preferably effected in the presence of a catalyst which is a salt, preferably Mg, Ca, Al or Li, of the esterifying acid.  The hydrolysis of the ester may be carried out using the conventional acidic or basic catalysts. Examples relate to the preparation of a 3,3-dimethylhexanol - 1/3 - methyl - 3 - ethylpentanol-1 mixture and 3,3-dimethyl pentanol.
Patent GB-1531708-A (GB)
Title: Accelerator mixture for the crosslinking of powder lacquer binders
IPC: C08G59/00
Filed: 1977-09-12
Abstract: 1531708 Curing epoxy resins DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 12 Sept 1977 [13 Sept 1976] 37898/77 Heading C3B The cure of powder lacquers comprising epoxy resins and carboxyl group containing acrylic resins is accelerated by a mixture of: (I) 0À05- 3% of LiX where X is Cl, Br or the anion of an aliphatic or aromatic carboxylic acid; and (II) 0À5-5% of at least one quaternary ammonium compound in which R<SP>1</SP> is a C 8-30  saturated aliphatic radical, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are each C 1-24  aliphatic, C 6-10  aryl or C 7-11  aralkyl radicals, or any two of R<SP>2</SP> to R<SP>4</SP> may together with the nitrogen atom form a 5-10 membered heterocyclic ring, or all the radicals R<SP>2</SP> to R<SP>4</SP> may together with the nitrogen atom form a pyridine ring, Y<SP>(-)</SP> is a monobasic inorganic or organic acid anion. The percentages are by weight based on the acrylic copolymer. Examples of (I) are LiCl, LiBr and lithium benzoate. Examples of (II) are dimethyldistearylammonium chloride, myristyldimethylbenzylammonium chloride, trimethylstearylammonium stearate and laurylpyridinium bisulphate. The acrylic copolymer may be polymerized in the presence of the accelerator mixture or of either component thereof.
Patent GB-989202-A (GB)
Title: Improvements relating to the treatment of hydrocarbons
IPC: C10G25/03
Filed: 1962-10-08
Abstract: A process for the separation of n-paraffins from petroleum fractions comprises subjecting the fraction to extraction with a molecular sieve to separate a n-paraffin fraction, treating the n-paraffin fraction with oleum, neutralizing, and recovering an n-paraffin fraction of reduced aromatic content.  The oleum washing is preferably conducted below 175 DEG  C., and may comprise more than one wash.  The neutralization may be affected in known manner, using for example a caustic soda wash followed by a water wash and drying steps, for example flash drying under vacuum or a salt treatment. Prior to the oleum treatment, the fraction may be distilled to remove up to 5% of bottoms. A particularly suitable molecular sieve treatment step is that of of Specification 944,441.
Patent GB-1281520-A (GB)
Title: Improvements in or relating to flexible mechanical transmission cables
Inventor: DOVE ERNEST BAKER
IPC: F16C1/20
Filed: 1968-08-09
Abstract: 1281520 Toothed gearing TELEFLEX Ltd 14 July 1969 [9 Aug 1968] 38134/68 Heading F2Q A flexible transmission cable which is adapted to transmit mechanical effort by longitudinal movement comprises a multi-wire core around which a drive wire 15 is laid in an open helix, the drive wire 15 being adapted to engage a pinion and having a cross-section which has a substantially trapezoidal cross-section with each of the opposite flank faces 16 of convex configuration. The base of the drive wire has a bulge 17 which beds into the cable core surface to give enhanced grip.
Patent GB-1116600-A (GB)
Title: Improvements in or relating to conveyors
Inventor: HALLS JAMES HENRY COLLINS
IPC: B65G17/16
Filed: 1964-09-18
Abstract: 1,116,600. Endless conveyers. CARRIER ENGINEERING CO. Ltd. 27 Aug., 1965 [15 Sept., 1964], No. 38279/64. Heading B8H. In an endless conveying system having abrupt changes in direction, two lengths of an endless chain 3 extend parallel to each other throughout the substantially horizontal conveying path, the distance apart of the lengths changing with each change in conveying direction such that the orientation of load carriers 12 pivotally attached to both lengths of chain, remain substantially constant throughout. In Fig. 1 the carriers and load are attached at a loading station 1 and move in the direction of arrows 15, 18 to an unloading station 2 where they are removed. The conveyer comprises a single endless chain 3 passing around sprockets 4 to 11. In the embodiment of Fig. 2 (not shown), two endless chains are used to form the parallel lengths. In the embodiment of Fig. 3 (not shown), two endless chains are used to form a figureeight shape, one pair of lengths of chain passing under another pair whereby loading and unloading can be carried out at any point in the circuit. In the embodiment of Fig. 4 (not shown), one loop of the figure-eight track of Fig. 3 (not shown), comprises a plurality of parallel U-shaped sections, thereby increasing the conveying distance.
Patent GB-1199373-A (GB)
Title: Apparatus for Constructing Multi-Storey Buildings.
Inventor: HUBER GOTTLIEB FRITZ
IPC: E04G21/14
Filed: 1968-04-24
Abstract: 1,199,373. Anchoring elongated lifting elements. G. F. HUBER. 24 April, 1968 [25 April, 1967], No. 38494/69. Divided out of 1,199,372. Heading B8B. [Also in Divisions E1-E2] Apparatus for lifting a pre-cast building slab 3 together with flying scaffolding (not shown) supported thereunder by rods 7 includes a hollow lifting rod 6, attached to a sleeve 1 which is cast into an aperture formed in the slab via a two-part, internally and externally threaded bush 4, 41.
Patent GB-1060856-A (GB)
Title: Method for providing a non-tacky film on tacky surfaces of polymeric materials and products obtained thereby
IPC: B21D51/46
Filed: 1963-10-01
Abstract: A sealing element comprises a rigid metallic substrate, an elastomeric normally tacky sealing compound disposed thereon and a non-tacky rupturable film enveloping the sealing compound.  The non-tacky film may also envelope the substrate on which the sealing compound is disposed.  The substrate may be tin plate.  A non-tacky film may be obtained on a normally tacky surface of an elastomeric gasket disposed on a rigid metallic substrate comprises forming on the tacky surface a layer of (i) a lacquer, (2) a varnish, or (3) an aqueous dispersion of a film forming polymer of (a) a vinyl chloride-vinylidene chloride copolymer, (b) a styrene-butadiene copolymer, (c) an acrylic resin, (d)-vinyl acetate polymer, or (e) methyl cellulose, and curing the coating on the gasket to form a tack-free film thereon which is rupturable so as to expose the underlying tacky surface of the gasket.  The rigid metallic substrate may have a pattern in the form of a gasket on a portion thereof.  The film may be from 0.1 to 0.2 mil thick.
Patent GB-898639-A (GB)
Title: Improvements in or relating to window stays
Inventor: EURICH JAMES VICTOR
IPC: E05C17/18
Filed: 1960-11-10
Abstract: 898,639. Stays. BOULTON & PAUL Ltd. Nov. 10, 1960, No. 38658/60. Addition to 859,582. Class 65(1). In a window stay according to the parent Specification the stay arm 1 is of inverted channel-shaped cross-section and the sides 1a at or adjacent one end are arranged to form the socket. The nylon ball 10 is secured to an attachment plate 6a by a rivet 11. A groove 15 is formed in the part 1c of the channel to locate the tip of the post (not shown) fixed to the window sill. The sides 1a extend close to the plate 6a to limit rotation of the arm about its longitudinal axis.
Patent GB-1499303-A (GB)
Title: Thermally actuated valve
IPC: F16K11/04
Filed: 1976-09-17
Abstract: 1499303 Valves BORG-WARNER CORP 17 Sept 1976 [8 Oct 1975] 38674/76 Heading F2V In a thermally-actuated valve a bi-metallic disc 24 is movable between seats about passages 88, 113 to selectively connect one of these passages to a common passage 69, 98 and block the other. The disc 24 is held between the two halves of a heat conducting element 61, 62, which is housed in a brass cup 22 that is connected to a plastics crown member 21. Three passages 38, 41, 42 in the member 21 communicate with the passages in the element 61, 62 via the apertures in a resilient gasket 25 which also biases the element 61, 62 against the cup 22.