baber/WOPTO huggingface dataset:
Patent GB-672560-A (GB)
Title: Improvements in thermal responsive glow discharge switches
IPC: H05B41/08
Filed: 1950-03-16
Abstract: 672,560. Thermal switches. BRITISH THOMSONHOUSTON CO., Ltd., and BLOOD, W. R. Feb. 27, 1951. [March 16, 1950] No. 6622/50. Class 38 (v). In a glow-discharge switch, the bimetallic strip 6 and stationary contact 5 extend from leads 3, 2 sealed through the opposite ends of a glass tube forming the envelope of the switch. The bimetallic strip 6 is kinked at 7 to form a contact making surface for engagement with the contact 5 which is a cranked wire of nickel or molybdenum. This arrangement enables the tube to be of such a size, e.g. 3/16 inch diam. by 1 inch long, for the switch to be suitable for mounting within the cap at one end of a tubular low-pressure electric discharge lamp, Fig. 3 (not shown). The envelope may be filled with a mixture of 80 per cent neon and 20 per cent argon to a pressure of 30 mm. of mercury. Specifications 559,507 and 584,913 are referred to.
Patent GB-592938-A (GB)
Title: New pyrimidine compounds
Filed: 1944-04-11
Abstract: 4-Halogenopyrimidines unsubstituted in the 5- and 6-positions, but substituted in the 2-position by an anilino group which bears one or more non-acidic nuclear substituents of molecular weight greater than 15, such as hydrocarbon radicals (which themselves may bear substituents and which may be attached to the anilino group directly or indirectly, e.g. through an oxygen, sulphur or nitrogen atom or through a carbonyl group, or may have two carbon atoms in common with the anilino radical as in the case of a naphthylamino group), halogen atoms or nitro, cyano or esterified carboxyl groups, are made by the interaction of the corresponding 2 - anilino - 4 - hydroxypyrimidine with the pentachloride, pentabromide, oxychloride or oxybromide of phosphorus.  Mixtures of the halogenating agents may be used and the reaction may be effected in the presence of a solvent or diluent, e.g. monochlorobenzene.  In an example, 2-p-chloroanilino-4-chloropyrimidine is made from 2-p-chloroanilino-4-hydroxypyrimidine and phosphorus oxychloride. Additional starting materials specified are those made by the process of Specification 592,936 from 2-methyl- or -ethyl-mercapto-4-hydroxypyrimidine and o- or m-chloroaniline, p-nitro-, -methoxy-, -bromo- or -cyano-aniline, b -naphthylamine or 6-bromo- or -methoxy-2-naphthylamine.  Specification 592,928 also is referred to.
Patent GB-1534383-A (GB)
Title: Apparatus for continuous treatment and degasification of elastomers and polymers
IPC: B29C48/76
Filed: 1977-02-17
Abstract: 1534383 Degassing polymers WERNER & PFLEIDERER 17 Feb 1977 [26 March 1976] 06676/77 Headings BIB and BIM Apparatus for degassing elastomeric and polymeric material with a viscosity of at least 1000 poise comprises a heatable elongate housing with zones b, b' b" each comprising a pressure build up zone followed by a pressure relief zone e.g. containing kneading and shearing elements, and respective adjacent degassing zones c, c', c" each provided with a helical groove having a depth at most equal to the depth of the thread of the worm.
Patent GB-737287-A (GB)
Title: Improvements relating to new improvement agents for lubricating oils
IPC: C07F9/165
Filed: 1953-03-12
Abstract: The invention comprises improvement agents for lubricating oils having the general formula, <FORM:0737287/IV (b)/1> wherein R1 and R2 are alkyl, aryl, aralkyl, alkaryl or cycloalkyl radicals, A, B and C are hydrogen or alkyl or alkylol radicals, and X is an integer from 1 to 4.  The compounds may be prepared by forming the zinc complex, e.g. by reaction of zinc sulphate or chloride with ammonia or the appropriate amine, followed by reaction with an alkali metal salt, preferably the sodium salt, of the selected dithiophosphoric diester, or the zinc salt of a dithiophosphoric acid ester may be formed initially and reacted with the appropriate amine or ammonia. Suitable amines include ethylamine, propylamine, isopropylamine, ethanolamine, diethanolamine, triethanolamine, di-isopropylamine, diethylamine and triethylamine.  Examples of R1 and R2 specified are methyl, ethyl, propyl, lauryl, octadecyl, tetradecyl, phenyl and naphthyl.  In examples (a) sodium dihexyldithiophosphate was treated with a solution of zinc sulphate and (1) aqueous ammonium hydroxide, (2) ethanolamine or (3) ethylamine, the oil material which separated being stripped under vacuum on a steam bath and filtered; (b) zinc dihexyldithiophosphate was treated with (4) anhydrous ammonia, (5) di-isopropylamine or (6) triethylamine and a light yellow viscous oil-soluble reaction product resulted in each case.ALSO:The invention comprises lubricating oil compositions comprising a major proportion of a lubricating oil and from 0.1 to 5 per cent, preferably 0.3 to 2 per cent by weight of one or more compounds having the general formula <FORM:0737287/III/1> <FORM:0737287/III/2> wherein R1 and R2 are alkyl, aryl, aralkyl, alkaryl, or cycloalkyl radicals, A, B and C are H, or alkyl or alkylol radicals, and X is an integer from 1 to 4. These additives may also be mixed with lubricating oils to form concentrates, such as a 50 per cent concentrate, adapted for addition to lubricating oils.  The compositions are applicable to mineral oils, such as crank-case oils, or animal and vegetable oils including cutting oils, slushing oils, turbine oils, and transformer oils. Detergents, stabilizers and sludge inhibitors may also be added to the compositions.  The novel "alkaline reserve" additives have excellent detergent, anti-oxidant and corrosion inhibiting properties.  An example is given of ammino zinc dihexyl-dithiophosphate incorporated in a Mid-Continent solvent refined base oil.
Patent GB-1016018-A (GB)
Title: Dispensing valve
IPC: B65D77/06
Filed: 1964-04-07
Abstract: 1,016,018. Dispensing closures. CORRUGATED CONTAINER CO. April 7, 1964 [April 11, 1963; March 4, 1964], No. 6814/65. Divided out of 1,016,017. Heading B8T. [Also in Division F2] A dispensing valve comprises a tubular guide portion open at both ends with a hollow stem slidably mounted therein, the stem having a stop at each end which bears against the outer end of the stem and against a shoulder within the guide to limit the travel of the stem and a dispensing outlet which is outwardly of the outer end of the guide when the stem is moved to its outermost position and inwardly thereof when the stem is moved to its innermost position. The guide 42 has an extension 38 with two flanges 39, 41 forming an annular, groove 42a for locating the valve in the rigid wall of a container (not shown), a flange 37 for attachment to a liquid-tight container 16 and a stop shoulder 43. The stem 40 is movable within the guide 42 by gripping a button 45 which also serves to limit inward movement of the stem, outward movement being limited by a shoulder 46 engaging the shoulder 43. When in the open position as shown liquid is dispensed through an orifice 47 while in the closed position the orifice 47 is wholly within the guide 42 which forms a liquid-tight seal with an outwardly flared surface 49 on the stem. The entire valve is made of plastics material.
Patent GB-565607-A (GB)
Title: Improvements in or relating to methods of setting hollow rivets or in or relating toapparatus suitable for use for such purpose
IPC: A43D100/02
Filed: 1943-04-30
Abstract: 565,607. Eyelet setting machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., COOPER, B. P., and THORNE, J. B. April 30, 1943, No. 6826. [Class 43] The invention relates to apparatus and methods of setting hollow rivets, more particularly where one side only of the work is accessible, the rivets being open at one or both ends. The base of an eyelet 5 to be set in a workpiece w is arranged to rest.on an anvil 9 at the forward end of a portable tubular casing 7 provided at its rear end with a rest 11 which bears against the body of the operator. A rod 23 extending longitudinally through the casing 7 carries two eyelet engaging members 3 with bulbous outer ends. On rotation of a disc 51, supported in bearings on the casing 7, by a handle, the rod 23 is reciprocated in the casing by cam - operated toggle links 33, 37, twice for each revolution, to cause the pair of members 3 to engage the setting end portion of the eyelet 5 at two diametrical portions 90 degrees apart, the members 3 being spread, as they are pulled in the setting operation, by a conical headed member 1 secured to a plate 17 secured axially but in a manner free to turn in the casing 7 behind the anvil 9. Automatic turning of the members 3 is produced by a pin 67 guided in a longitudinal slot 69 in the casing 7 and the inner end of which engages a helical slot 71 in a sleeve member 73 free to turn in the casing 7 and engaging splined end of the rod 23. The rod 23 is constructed in two separate parts joined by a telescopic connection 29 with which is associated a strong compression spring to provide tolerance for setting rivets of different length. Specification 345,221 is referred to.
Patent GB-311856-A (GB)
Title: Improvements in cylindrical sheet metal containers
IPC: B65D43/02
Filed: 1928-03-05
Abstract: 311,856. Gullett, S. W. March 5, 1928. Lids.-The lid flange d of a sheet metal container of the flush lid and body type bears on the flat underside part of a continuous inwardly-projecting groove f, Fig. 2, formed at the base of the neck. One or more recesses a shaped as shown in Figs. 3 to 5 are formed in the edge of the lid flange to facilitate opening by levering.
Patent GB-740320-A (GB)
Title: Improvements in or relating to venetian blinds
IPC: E06B9/308
Filed: 1954-03-09
Abstract: 740,320. Blinds. ROLLADENFABRIK A. GRIESSER AKT.-GES. March 9,1954 [Feb. 5, 1954 ; Feb. 5, 1954], No. 6864/54. Class 20(3). A control device for venetian blinds of the kind comprising a plurality of slats 9 supported near their ends between cross tapes 11 fastened between pairs of support tapes 8 includes a control shaft 2, lift tapes 12, wound on drums 13 fast with the shaft 2 and passing through aligned holes 9a in the slats 9 being connected to the lowermost slat, not shown, and tilting frames 53, to each of which are secured the upper ends of a pair of tapes 8, being revolvably and eccentrically mounted on, and connectable by a ratchet and pawl device 57, 61 to the shaft 2 over half a revolution of the latter in either direction for varying the angular setting of the slats 9. The ratchet and pawl devices arranged between the ends of the shaft 2 and the corresponding end of the adjacent frame 52 each consists of a disc 54, Fig. 7, clamped to the sleeve portion 50 of the respective frame 53 and having diametrically opposed radial slots 55 which are traversed by bolts 56 screwed into a radially displaceable follower ring 57 having on its inner surface diametrically opposed driving projections 60. A ratchet wheel 61, fast with the shaft 2, is provided with four axial projections 62 adapted to co-operate with the projections 60 on the follower ring 57, the latter dropping out of engagement with the ratchet wheel 61 when the slots reach the position of maximum tilt in either direction. These limiting positions are also preferably determined by providing abutments which co-operate with the tilting frame. The shaft 2, supported in sleeves 50 carried by plates 17 fixed to a housing 1 accommodating the control device, is provided at one end with a winding drum 3 to which is fixed a draw tape 4. In a modification the drums 13 are located between the frames and the corresponding ends of the shaft 2, holes for the lift tapes being provided in the end parts of the slats which project beyond the lateral boundaries of the window to which the blind is fitted. In a further modification the slats have loops attached to their ends which traverse grooves in vertical guide rails, the pull tapes in this case extending through the loops.
Patent GB-993530-A (GB)
Title: Antistatic synthetic resins and fibres
IPC: C08K5/3445
Filed: 1962-02-22
Abstract: A synthetic resin composition comprises a synthetic resin having incorporated therein from 0.01 to 5% by weight with respect to the resin of a compound selected from (1) (RNH.CHR1.CH2COO)xMy (2) [RN.(CHR1.CH2COO)2]xMy (3) <FORM:0993530/C3/1> (4) (RNR3CH2CH2NR32)xMy (5) <FORM:0993530/C3/2> (6) <FORM:0993530/C3/3> (7) <FORM:0993530/C3/4> or (8) <FORM:0993530/C3/5> wherein R is an alkyl group containing at least 8 carbon atoms, R1 is H or a C1 to C5 alkyl group, R2 is a C1 to C7 alkyl group, R3 is H, or -(CH2)mCOO-and m is an integer from 1 to 3, R4 is H, or -CH2COO-, an alkyl group containing up to 11 carbon atoms, a hydroxy alkyl group, or a polyhydroxyalkyl group, R5 is -CH2CH2- or -CH2CH2CH2-, R6\h is H, -CH2COO-, a C1 to C11 alkyl group, a hydroxyalkyl group, or a polyhydroxy alkyl group, R7 and R8 are H, <FORM:0993530/C3/6> a C1 to C11 alkyl group, a hydroxyalky group, or a polyhydroxyalkyl group, M is a metal, x and y are integers of at least 1, A is -O- or - NH-, and p is an integer from 0 to 3. The synthetic resin may be polyethylene, polystyrene, polyvinyl chloride, a polymethacrylate, a nylon, polypropylene, or polyethylene glycol terephthalate, and a copolymer of vinyl chloride and vinyl acetate.  The metal M may be Ca, Cd, Al, Sn, Pb, or Ba.  Compounds exemplified are compounds (1) and (2) in which R is C12H25 or C18H37, and R is H, compound (3) in which R2 is C11H23 or C17H35, and A is 0, (C12H25NHCH2 -CH2CH2NHCH2CH2COO)xM, <FORM:0993530/C3/7> and <FORM:0993530/C3/8> The compositions may also include dyes, pigments, fillers, plasticizers and lubricants.
Patent GB-1565865-A (GB)
Title: Process for the manufacture of a technetium-997 labelled diagnostic agent for bone scanning
IPC: A61K51/04
Filed: 1977-02-18
Abstract: A labelling unit for the purpose of labelling with the eluate from a technetium-99m generator is produced. 0.7 to 1.3 parts by weight of tin(II) chloride and 4.8 to 9.5 parts by weight of sodium pyrophosphate are dissolved in 500 to 2000 parts by weight of water. The solution is adjusted to a pH between 3 and 9 and frozen. The water is subsequently stripped off with fusion under a partial pressure of water vapour from 1 to 5 torr, and the residue is dried under 10<-2> to 10<-3> torr. The labelling unit is suitable for the preparation of a bone diagnosis agent.
Patent GB-964859-A (GB)
Title: Improvements in or relating to unipolar to bipolar pulse converters
IPC: H03K5/156
Filed: 1963-02-21
Abstract: 964,859. Pulse code modulation systems; transistor pulse circuits. WESTERN ELECTRIC CO. Inc. Feb. 21, 1963 [March 9, 1962], No. 6982/63. Headings H3T and H4L. A unipolar to bipolar pulse converter comprises a pair of blocking oscillators in pushpull configuration, capacitive steering circuitry being connected between a source of unipolar input pulses and the feedback circuits of the blocking oscillators to steer the input pulses to alternate blocking oscillators in succession whereby the blocking oscillators alternate in generating output pulses in response to unipolar input pulses. The outputs of the respective blocking oscillators are of opposite polarity and are combined to form the bipolar pulse signal. The converter is suitable for use in pulse code communication systems of the type described in Specification 935,293. As shown, positive-going unipolar pulses from source 10 are supplied to input 11 of an AND gate 12, positive-going clock pulses from a source 14 being supplied at the same time to the input 13. The resulting output from the gate 12 may follow a path including diode 20, capacitor 21, and winding 1, 2 and the base of transistor 24 of a first blocking oscillator, or alternatively, diode 27, capacitor 28, and winding 3, 4 and the base of transistor 30 of a second blocking oscillator. The particular path taken is determined by which capacitor 21 or 28 is holding a charge from the previous operation of the converter to produce a pulse. Assuming a positive charge on capacitor 21 which blocks the diode 20 and a zero charge on capacitor 28, the output of AND gate 12 is supplied via diode 27 to the base of transistor 30 causing transistor 30 to conduct and capacitor 28 to be charged positively. The resulting negative going potential at terminal 5 of winding 5, 6 appears with positive polarity on the side of each winding indicated by a dot. Thus, diode 33 conducts so that excess current from source 17 is shunted from the base to the collector of transistor 30 to prevent saturation and increase turn-off speed. While transistor 30 is conducting a positive pulse on terminal 1 of winding 1, 2 plus the original charge on capacitor 21 causes diode 34 to conduct and allow the capacitor 21 to discharge through resistor 35, winding 1, 2 and diode 46. The blocking oscillator output pulse is terminated by a negative-going clock pulse from a source 38 causing diode 39 to conduct and divert feedback current from the base of transistor 30, the output pulse appearing on winding 9, 10. The next positive pulse from AND gate 12 will be blocked at diode 27 and will be conducted via diode 20 to the base of transistor 24 of the second blocking oscillator functioning in the same manner. To avoid the possibility of having the same charge on capacitors 21, 28 a resistor 44 discharges capacitor 28 sufficiently to trigger transistor 30 on and ensure a start of the above operation.
Patent GB-330556-A (GB)
Title: Improvements in or relating to means for securing cap closures in situ over the mouths of bottles or other containers
IPC: B67B3/02
Filed: 1929-03-04
Abstract: 330,556. Wallis, H. C., Roberts, W. R., and Armstrong, F. March 4, 1929. Capsules, applying.-A machine for securing closures of cap formation in situ over the mouths of containers formed with an overhanging shoulder comprises a device, preferably a plurality of die segments 1, adapted to close around the skirt of the cap, and an axially movable element 2 for subsequently forcing the lower portion of the skirt against against the shoulder, the segmential closing and axial movements being determined automatically, as, for example, by an element 9 with a cam surface 22, pivoted levers 17, a thrust sleeve 7, and a compression spring 8. On raising the lever 10, the actuating element 9 is depressed and the cam surface 22 causes the die segments to close around the skirt. On further movement in the same direction, the surface 12 bears against the thrust sleeve 7, through a washer 13, which through the spring 8 forces down the pressure head 2, which is universally pivotable about the ball 5 and is upwardly biassed by a compression spring 14. The pressure so exerted forces the container and cap downwards until the bottom of the skirt is bent under the overhanging shoulder s by the curved lower portion l of the die members. The lever 10 may be moved by foot treadle mechanism, and the container may be positioned by hand or held on a spring-supported table. The Provisional Specification describes a link mechanism for imparting the segmental movements to the die segments and pressure head respectively, and indicates that the closing of the die segments imposes a first bendiug action on the lower portion of the skirt.
Patent GB-347806-A (GB)
Title: Improvements in means for adjusting the valve gears of internal combustion engines
IPC: F01L1/344
Filed: 1930-03-04
Abstract: 347,806. Valve gear; regulating. BOULET, G., 8, Avenue de Bellevue, Sevres, Seine-et-Oise, France. March 4, 1930, No. 7076. Convention date, March 30, 1929. [Class 7 (vi).] A pair of inlet valves C and a corresponding pair of exhaust valves (not shown) are actuated by two cam shafts A, B, which are adjustable angularly in opposite directions so as to vary the periods of admission and exhaust, particularly in aircraft engines. The shafts are adjusted by axial movement of their driving-pinions, which engage helical flutes on the shafts, and the arrangement is such that the periods of opening of the two inlet valves may be made to overlap more or less to vary the total admission period, and the overlap of the opening of the exhaust valves may also be varied to the extent of allowing re-introduction of exhaust gas on the suction stroke when the period of opening of the inlet valves is short. According to the Specification as open to inspection under Sect. 91 (3) (a), there may be a separate shaft to each valve, either with four valves as described above, or with two inlet and one exhaust valve. Also, instead of providing helical flutes on the shafts, the flutes may be rectangular and the gearing teeth helical. This subject-matter does not appear in the Specification as accepted.
Patent GB-492145-A (GB)
Title: Logarithmic calculating disc
IPC: G06G1/10
Filed: 1938-03-07
Abstract: 492,145. Calculating - apparatus. VELLE, E. H. March 7, 1938, No. 7076. [Class 106 (i)] A calculating disc with a logarithmic scale arranged on ten concentric circles is pivotally connected to a transparent disc with a radial index and to a cursor arm and is provided with an indicator comprising a scale around the centre of the disc and a manually adjustable hand co-operating with the scale to determine the line on which the result of a computation is to be read off. As shown in Fig. 1 the disc d with a logarithmic scale marked on the circles p is mounted between two plates e of transparent material secured at the edges and carrying a set screw g for clamping the disc. A radial index l is marked on the upper plate e and a cursor i with an index line k is pivotally mounted on the central axis of the disc. The line indicator is constituted by a manually turnable hand m and a co-operating scale n. A modified form of indicator is shown in Figs. 2 and 3. In this arrangement the hand m is secured to a central spindle h carrying a single toothed gear q that is adapted to drive a gear wheel s with a numeral disc w viewable through an aperture s in a cover plate y. The figure exposed is the number which must be added to or subtracted from the sum of the characteristics to give the correct result.