baber/WOPTO huggingface dataset:
Patent GB-1143273-A (GB)
Title: Hydraulic actuator control system
IPC: G05D16/16
Filed: 1967-09-21
Abstract: 1,143,273. Fluid-pressure servomotor systems. ITT INDUSTRIES Inc. Sept.21, 1967 [Sept. 26, 1966], No.42937/67. Heading G3P. A hydraulic actuator comprises a fluid-pressure source 10, a conduit 30 connected to the output of the source, a device 40 connected to the conduit and operated by fluid-pressure developed by the source, means 74, 80 for bleeding the pressure in the conduit, means 58 blocking the bleeding means until the device 40 has been actuated a minimum amount by the pressure applied to the device, and a relief valve 91 connected to the source 10 and controlled by the pressure in a conduit 54 between the blocking and the bleed means to by-pass a portion of the output from the source 10 after the device 40 has moved the minimum amount. The device 40 consists of a piston connected to a valve 46 and provided with a tubular valve element 58 which connects the space behind the piston with conduits 102 and 54 after the minimum travel. Flow into the conduit 54 makes the bleed device operative to control the position of the piston while the simultaneous flow into the conduit 102 depresses a diaphragm 99 to open a valve 91 and by-pass part of the fluid in the conduit 30 to reservoir. Flow through the bleed device is regulated by a valve 74 controlled by a further electrically actuated valve 80 having a bridge circuit with a manual input 88a and a feedback 88b from the valve 46. The source 10 consists of a pump having two cylinders 20, 22 alternately delivering pressurized fluid to the conduit 30, a safety valve 32 being automatically opened when the pump driving motor 16 is deenergized.
Patent GB-1328113-A (GB)
Title: Veterinary composition for the prophylaxis and treatment of  leucocytozoon disease in poultry
IPC: A23K1/16
Filed: 1970-09-09
Abstract: 1328113 Veterinary compositions TAKEDA YAKUHIN KOGYO KK 9 Sept 1970 [11 Sept 1969] 430711/70 Heading A5B Veterinary compositions for the prophylaxis and treatment of leucocytozoon disease in poultry comprise a triazine compound of the formula: in which R is a halogen atom, a C 1-3  alkyl group substituted one or more times by a halogen, or a nitro group; or a non-toxic salt thereof such as the hydrochloride, sulphate, nitrate, hydrobromide or hydroiodide; together with a carrier comprising a feedstuff. Leucocytozoon disease in poultry is treated or prophylactically treated by administering to poultry feedstuff or drinking water containing the above triazine compound or a non-toxic salt thereof. The feedstuffs may also contain sulphadimethoxine, sulphaquinoxaline and/or vitamin B.
Patent GB-878710-A (GB)
Title: Gear checking apparatus
Filed: 1959-12-18
Abstract: 878,710. Gauging and sorting toothed gears. NATIONAL BROACH & MACHINE CO. Dec. 18, 1959 [Feb. 24, 1959], No. 43117/59. Class 106 (2). A gear-testing machine comprises a rotary drive gear 36, a master gear 50 having its axis substantially parallel to the gear 36, a support 55 for the master gear 50 movable towards and away from the drive gear 36, means 18 for advancing work-gears G laterally into engagement with the drive and master gears, means (not shown) for arresting the lateral movement of each workgear G between the gears 36, 50, an accurately locating support 114 axially movable into engagement with the work-gear G, and means 138 for measuring movement of the master gear 50 during rotation of the work-gear G. The gear support 55 is pivotally mounted on a spindle 70 substantially perpendicular to the axes of the gears and this is journalled in a housing 66 which can pivot about an axis 62 parallel to the axes of the gears. Thus, when in mesh with a work-gear G, the master gear 50 can pivot to give an indication of the helix angle of the gear. The gauging device 138 is mounted on the housing 66 and is preferably a linear variable differential transformer type of transducer controlling circuits for solenoids operating gates 156, 158, 160, controlling the entrances to different channels. It may also be connected to an indicator or recorder to record the results of a check on a limited number of gears only. If this is done,. the gate 156 may be used to separate these gears from the others. In operation, work-gears G move under gravity along a shoot 18 and are released for gauging one at a time by a rocking arm 22. Each gear G rolls into mesh with the drive and master gears 36, 50 and is prevented from further forward movement by a stop (not shown). An arbor 114 is then advanced through the central opening of the gear G and in doing so lifts it slightly so that it is in tight mesh with the master 50 but loosely engages the drive gear 36. At this point the stop is retracted. A timing device is then started and times an interval assuring a full rotation of the work-gear. At the end of this interval, the arbor 114 is withdrawn and the gear rolls on down the shoot, being sorted according to its helix angle. The drive gear 36 is driven by a motor 42 through a slipping clutch 44 which prevents jamming of the gears. To prevent the master gear 36 from rotating before the axis of the work-gear is in line with the axes of the other gears 36, 50, a pin 58 is urged into frictional engagement with the end of the master gear shaft 52. A set of limit switches ensure operation in the correct sequence and a feeler 20 prevents operation if there are no gears in the shoot 18.
Patent GB-432235-A (GB)
Abstract: 432,235. Lubricating-pumps. CHALMERS, R. A., and TECALEMIT, Ltd., Great West Road, Brentford, Middlesex. April 27, 1934, No. 12828. [Class 102 (i)] In a lubricating-pump the body 1, which screws into an oil container, carries a pump barrel 20 secured by a bush 21. The plunger 2, which is operated by a cam, controls the suction ports 4 and discharges past an annular valve 3, with which it is arranged to make contact, in order to expel air. The meeting surfaces of the plunger and valve may be square, or bevelled, as shown. The valve slides on the exterior of a head 23, which projects into the barrel and is pressed by a spring 9 engaging a cottar 25. The latter can be engaged with any of three grooves 24 in the head 23, in order to vary the discharge. When the suction ports 4 are closed by the plunger the oil is returned to the reservoir through a port 27 in the plunger until the plunger engages the head 23, or a valve pip 26 carried by the head. The plunger then pushes the head back and discharges the contents of the annular space surrounding the head.
Patent GB-1324914-A (GB)
Title: Cathode ray tubes
IPC: H01J31/18
Filed: 1971-09-16
Abstract: 1324914 Cathode-ray tubes HEWLETTPACKARD CO 16 Sept 1971 [28 Sept 1970] 43231/71 Heading H1D In a cathode-ray tube a secondary emission structure intermediate the electron gun 34 and the screen 42 comprises a grid 38 or 40 provided with a dielectric coating 16 on the surface facing the gun 34, the dielectric being such as to emit secondary electrons and having a lattice energy greater than 1000 kcal./mole, and a collector electrode 39 or 41 on the electron gun side of the grid adjacent the grid and insulated therefrom. The grids 38 and 40 are respectively an expansion lens and a charge storage element. Suitable dielectric coatings are hafnium dioxide and thorium oxide.
Patent GB-1020749-A (GB)
Title: Improvements in vibrators
IPC: E04G21/08
Filed: 1964-10-26
Abstract: 1,020,749. Vibrating concrete. H. WACKER, and P. WACKER. Oct. 26, 1964 [Nov. 6, 1963], No. 43479/64. Heading B1C. [Also in Division F2] In a vibrator for compacting concrete &c., a cylindrical out of balance mass 1 is rotatable around the inner wall of the vibrator from a rotated shaft 3 via a crank 4 and a pin 5 which makes contact within a blind bore 6 of the mass 1 by a pair of rollers 7 received within diametrically opposed recesses of the pin 5 and lubricated through holes 8. The mass I is constrained by a shoulder 9 and a replaceable spigot 10 provided with a ball 11 and located within an end closure cap 12 of the vibrator.
Patent GB-1222379-A (GB)
Title: Temperature sensitive bridge circuits and probes therefor
Inventor: DAVIS NEVILLE RYLAND
IPC: G01K7/25
Filed: 1967-09-25
Abstract: 1,222,379. Measuring temperature, electrically. N.R. DAVIS. Sept. 24, 1968 [Sept. 25, 1967], No. 43604/67. Heading G1U. [Also in Division G3] In a resistance bridge circuit for measuring temperature, a thermistor T having an exponential characteristic and a resistor R having a resistance equal to the resistance of the thermistor at a temperature midway in the range of operation are connected to form electrically adjacent arms of the bridge, the other two arms being so arranged that the sum of their resistances is constant, whereby any unbalance of the bridge measured across the diagonal between the junction of the thermistor and resistor R and the junction between the other two arms is linearly related to the temperature of the thermistor. Inthearrangement shown in Fig. 5, a high resistance meter I can be connected across said diagonal by pushbutton PBI to indicate the bridge unbalance and can be connected across potentiometer VR by push-button PBC for calibration purposes. The output from a long tailed pair differential amplifier T1, T2 switches transistor T3 on to energize a relay RL to control a heater (not shown) when the bridge unbalance exceeds a given amount. The particular temperature at which control is effected is adjustable, using potentiometer VR. In an alternative arrangement Fig. 1 (not shown), said diagonal includes a high impedance voltmeter (G) connected to the wiper of the potentiometer (VR) which in use is adjusted to balance the bridge and is calibrated linearly in temperature. A second meter may be connected in parallel in said diagonal to a respective independent wiper of the potentiometer for indicating bridge unbalance. Alternatively two bridge circuits may be provided, the resistor R and thermistor T being common to both. Temperature probes. The resistor R may be mounted physically adjacent the thermistor T within a probe P or in the connector leads of the probe or in a plug or socket by which the probe is connectable to the remainder of the circuit. A small additional resistance (T) may be connected in series with the thermistor. Resistors R and (r) may be adjustable, or merely selected, to give the required temperature range.
Patent GB-1058446-A (GB)
Title: Improvements in or relating to curable rubber compositions
Inventor: KENDALL CHARLES EDWIN
IPC: C08K5/00
Filed: 1962-11-20
Abstract: A tetra-isoalkyl thiuram disulphide of formula R2NCS.S.S.CSNR2 where R is an isoalkyl group containing from 4 to 8 carbon atoms inclusive, is prepared by reacting an isoalkylamine under alkaline conditions with carbon disulphide with the addition of sodium hypochlorite.  The tetra-isoalkyl thiuram disulphide separates as a solid from the reaction medium.  An example is given of the preparation of tetra-isobutyl thiuram disulphide. The products are useful as curing accelerators, e.g. in the preparation of rubber threads (see Division C3).ALSO:A curable rubber composition incorporates a tetraisoalkyl thiuram disulphide of the formula R2NCS.SSCSNR2 where R is an isoalkyl group of from 4 to 8 carbon atoms inclusive (see Division C2).  The compound may be used in conjunction with other accelerators such as zinc mercaptobenzthiazole and dithiomorpholine [O(CH2 CH2)2NSSN(CH2CH2)2O].
Patent GB-994660-A (GB)
Title: Emulsions
IPC: C08J9/30
Filed: 1963-01-15
Abstract: A liquid two-phase water-in-oil emulsion comprising (a) from 2-16 parts by weight of an alkali metal soap, and (b) from 0,4-3,6 parts by weight of water, the soap being dissolved in and the water being dispersed in from 1-4 parts by weight of (c) a polyvinyl-chloride plasticizer.  The emulsion may also contain (d) from 1-4 parts by weight of an organic non-soap surfactant with or without (e) from 1-4 parts by weight of a polyvinyl chloride heat and light stabilizer; (a) may be an alkali metal salt of a saturated or unsaturated C12 to C24 fatty acid or mixtures thereof (examples are given); (c) may be a phthalate ester (examples are given); dioctyl adipate or sebacate; tricresyl, trioctyl or cresyl diphenyl phosphate; acetyl tributyl citrate; dipropylene glycol dibenzoate; an epoxidized fatty acid ester and/or triglyceride (examples are given) or a butadiene-acrylonitrile copolymer; (d) may be non-ionic, anionic or cationic, e.g. polyethylene glycol monolaurate; a tertiary amine ethylene oxide condensation product with soybean amine; a combination of coconut fatty acid amine condensate and an amine sulphonate; (e) may be a compound or complex of Pb, Sn, Zn, Cd or Ba, e.g. those sold as "Vanstay" (Registered Trade Mark).
Patent GB-1522697-A (GB)
Title: Process for the stabilisation of calciumhydrogenphosphate-anhydride against the reaction with fluorine ions
IPC: C07F9/38
Filed: 1975-10-28
Abstract: 1522697 Tooth-cleaning compositions HENKEL KG AUF AKTIEN 28 Oct 1975 44224/75 Heading A5B [Also in Division Cl] Tooth-cleaning compositions contain a fluorine compound and, as polishing agent, CaHPO 4  anhydride which has been stabilised against reaction with fluoride ions by treatment with 3 - amino - 1 - hydroxypropane - 1, 1 - diphosphonic acid or water-soluble salt thereof (see Division Cl). The phosphate is normally pre-treated but may also be treated in situ in a toothpaste. The phosphonic acid may be used with other stabilisers. The composition may be a paste or a powder containing 25-60wt.% of the treated phosphate, the other ingredients being conventional. Exemplified compositions contain (a) Examples 4 and 5: glycerine (30 or 18 parts by wt.), water (18 or 29.3), Na carboxymethyl cellulose (1), treated phosphate (36 or 40), Na metaphosphate (10) or sorbitol (7), Na lauryl sulphate (1), pyrogenic silicic acid (1.5), Na monofluorophosphate (0.5) or NaF (0.2), essential oils (1.5), saccharin sweetener (0.5); (b) Example 6: treated phosphate (50), chalk (30), silicic acid (10), milk sugar (4), MgCO 3  (4), TiO 2  (1), tannin (1).
Patent GB-1082174-A (GB)
Title: Heel and toplift
Inventor: BALL ARTHUR FREDERICK
IPC: A43B21/42
Filed: 1963-11-08
Abstract: A top lift of plastic material is moulded around the enlarged head of a securing dowel so as to embed tongues which are bent from the periphery of the head towards the end of the dowel remote from the head.  A second set of tongues may be bent in the opposite direction. The side edges of one set of tongues preferably diverge from the head whilst those of the other set converge or are rectangular.  The tongues may be bent slightly inwardly or outwardly.  Adjacent the head the shank has an enlarged tapered portion which serves to seat the dowel in the mould so as to ensure that the tongues are covered with the plastics material.  The shank has ridges, either continuous or on a plurality of separated sections, of slightly greater diameter than the shank, to prevent movement of the dowel when it is engaged in a bore in a heel.
Patent GB-873618-A (GB)
Title: Improvements in or relating to work supporting assemblies for use in conveyor apparatus
IPC: B65G49/04
Filed: 1959-12-30
Abstract: 873,618. Step-by-step conveyers. UDYLITE RESEARCH CORPORATION. Dec. 30, 1959 [Jan. 26, 1959], No. 44311/59. Class 78 (1). In work assemblies, which are particularly suitable for transporting workpieces through liquid treatment cycles, a common power means is operable both to raise and lower a frame supporting a work-carrier and to move the workcarrier relatively to the frame. Each worksupporting frame 20, Fig. 2, is supported by rollers 26 running on a track 18. The frame is of inverted U-shape and its legs 22 have racks 28 mounted on them. The work container 72 is rotatably mounted in the side members 34 .of a frame 32 which can slide in the frame 20 to a limited extent. Pinions 65 at the ends of a shaft 64 rotatably supported in the frame 32 mesh with the racks 28. The shaft 64 is driven by a reversible electric motor 50 through an over-running clutch 62 and a gear reduction unit 56. This unit drives also through gears 66, 68 a gear 70 mounted on the container 72. Specification 711,986 is referred to.
Patent GB-1413434-A (GB)
Title: Signal gate circuit
IPC: H03F3/72
Filed: 1973-09-21
Abstract: 1413434 Signal gating semiconductor circuits SONY CORP 21 Sept 1973 [22 Sept 1972] 44456/73 Heading H3T To limit D.C. power consumption in a colour burst signal gate Fig. 4 during the interval between gating pulses H, the latter not only turn off the gating transistor Q2 but also via R4 the signal receiving transistor Q1. The gating signal H from the deflection and sync. circuits 7 (Fig. 1, not shown) first turns on Q1 to supply current to Q3 which is normally biased conductive. Subsequently Q2 is turned on by H, diverting current from Q3 to the output transformer T1. The burst signal C which then appears at T1 base is thus gated without possible interference from preceding and following signal variations. In one modification Fig. 5 not shown the Hand C signals are combined to feed Q1 in an emitter follower Q5, to which they are fed by respective emitter followers Q6, Q4. In another embodiment (Fig. 7, not shown) a negative gate pulse H is supplied to Q3 instead of Q2, and is used to turn on Q1 by turning off a transistor Q8 in Q1 base circuit which normally holds Q1 off. A Zener diode ZD1 connects H to Q8 base.
Patent GB-1434563-A (GB)
Title: Pigment azo complexes
IPC: C08L1/00
Filed: 1973-09-22
Abstract: 1434563 Pigment azo complexes CIBAGEIGY AG 23 Sept 1974 [22 Sept 1973] 44558/73 Heading C4P Tri- or tetra-dentate azo metal complexes have the formula  wherein A is an aryl or heterocyclic residue, B is an aliphatic, aryl or heterocyclic residue, R is an alkyl, cycloalkyl, aryl, aralkyl or heterocyclic residue or R is the atoms required to complete together with A and Y, a heterocyclic residue, Y is O, S or N-R<SP>11</SP> wherein R<SP>11</SP> is the atoms required to complete, together with A and Y, a heterocyclic residue, X is O, S, CO 2  or N-R wherein R has its previous significance and when X is CO 2 , R<SP>1</SP> is a methylene residue and when X is O, S or N-R, R<SP>1</SP> is a carbon chain, which may form part of an aromatic or heterocyclic ring, and has 2 or 3 carbon atoms between the nitrogen atom and the substituent X, M is a Zn, Cu or Ni atom, n and m are the same or different and each is 0 or 1 and p is 1 or 2, and when p is 1, E is a hydrogen atom attached to one of the residues A, B, R and R<SP>1</SP> and when p is 2, E is either a direct bond linking two residues A, B, R or R<SP>1</SP>, or is an alkylene, arylene or aralkylene residue linking two residues A, B, R or R<SP>1</SP>. The pigments may be prepared by metallizing a compound of formula wherein the symbols have the above meaning, and R<SP>111</SP> is H or a methyl residue. The pigments may be incorporated in plastic masses, melts or spinning solutions, and in particular may be used for the coloration of lacquers, paints and printing inks.
Patent GB-1033130-A (GB)
Title: A joint construction for elastic and/or plastic materials
Inventor: ROING TURE AKE GILLIS
IPC: B29C65/02
Filed: 1964-11-02
Abstract: 1,033,130. Straps and bands. A.B. TEXTILKONST. Nov. 2, 1964 [Nov. 1, 1963], No. 44569/64. Heading A4X. [Also in Division B5] Overlapping portions of elastic or stretchable webbing, strapping or like ribbon material 1 (Fig. 1) or 1, 8 (Fig. 3) are secured together by a main joint 3 and a supporting joint 4 longitudinally spaced therefrom and are unattached in the zone 5, 6 between the joints 3, 4. The intermediate strap portion 5 on the loaded side of the joint is shorter that the associated overlapping portion 6 whereby when the shorter portion 5 is stretched to the length of the other portion 6 some load is transferred from the main joint 3 to the supporting joint 4. In one embodiment (Fig. 1), the strap end is formed into a loop 2. In another embodiment (Fig. 3), two straps 1, 8 are secured together by a main joint 3 and two supporting joints 4, 9 spaced from and on opposite sides of the main joint 3. The joints may comprise stitching, glueing or welding.
Patent GB-1088674-A (GB)
Title: Improvements in or relating to apparatus for supporting patients in bed
IPC: A61G7/075
Filed: 1963-11-13
Abstract: 1,088,674. Leg rests for beds. J. R. P. LANSDOWN. Sept. 29, 1964 [Nov. 13, 1963; March 3, 1964], Nos. 44755/63 and 9031/64. Heading A4J. [Also in Division E2] The limbs of an occupant of a bed are supported by two shaped foot supports 10, 11 mounted on a rigid cross bar (12) which has end fittings (13), 14 for the connection of adjustable straps 15, 16 which are connected to fixed parts of the bed. In a modification, Fig. 6, the foot supports are replaced by a padded roller member 36.
Patent GB-1105674-A (GB)
Title: An embroidery machine
IPC: D05C13/00
Filed: 1965-10-26
Abstract: 1,105,674. Embroidery machines. ADOLPH SAURER Ltd. 26, Oct., 1965 [3, Nov., 1964], No. 45217/65. Heading D1G. An embroidery machine has a ladder to provide a platform on which the operator can stand, the ladder being supported on two guides, at least one of which is fixed to the machine frame, so that the ladder can be moved longitudinally. As shown, the machine comprises uprights 2 interconnected by an upper horizontal member 3 and a lower horizontal member 4. A ladder 20 carries rollers 23, each of which has a concave surface engaging a guide bar 8 carried by brackets 10 rigid with member 3, and rollers 24 engaging a guide bar 8 carried by brackets 11 rigid with member 4. The ladder may be pivoted about the rollers 23 to clear the uprights 2. The ladder may be displaced manually, or alternatively may be clamped to either the upper or the lower run of an endless driven cable 10 for movement in one or the other direction. In a modification the lower guide is positioned at the base of the uprights 2, and the ladder is thereby positioned permanently outwardly of the latter.
Patent GB-1106909-A (GB)
Title: Method for treating electrophotographic printing plates
IPC: G03G5/00
Filed: 1965-10-28
Abstract: 1,106,909. Electro-photographic process. DOW CHEMICAL CO. Oct.28, 1965 [Nov. 9, 1964 (4)], No. 45698/65. Heading G2H. A latent electrostatic image on a layer of ZnO dispersed in a cross-linkable resin (e. g. a silicone resin) on a metal support (e. g. Mg) is developed using a catalyst for cross-linking the resin binder (e. g. aluminium octanoate in a carrier liquid and the layer rinsed with a mixture of an isoparaffin, a fluorochlorohydrocarbon and optionally odourless mineral spirits or aliphatic solvent naphtha, to remove the catalyst from the non-image areas and excess catalyst from the image areas. The plate is then heated to crosslink the resin, and etched. Reference has been directed by the Comptroller to Specification 1,006,084.