baber/WOPTO huggingface dataset:
Patent GB-685657-A (GB)
Title: Improvements in and relating to methods of preparing organohalogenosilanes
IPC: C07F7/12
Filed: 1950-08-10
Abstract: Organohalosilanes are prepared by reacting an organohalogenodisilane in the presence of a hydrocarbon halide at a temperature of at least 250 DEG  C.  Apart from containing at least one silicon bonded organic radical and at least one silicon bonded halogen, e.g. chlorine, bromine or fluorine, the remaining valences of the disilane reactant may be satisfied with a member of the class consisting of hydrogen, organic radicals and halogen. The disilane reactant may be a mixture of compounds or a single compound of the general formula Si2XnR6-n, wherein n is an integer from 1 to 5 and R represents a monovalent organic or hydrocarbon radical, e.g. an alkyl radical such as the ethyl, propyl, butyl, isobutyl, amyl or decyl radical, an aryl radical such as the phenyl, naphthyl or anthracyl radical, an alkaryl radical such as the tolyl, xylyl or ethylphenyl radical, an aralkyl radical such as the benzyl or phenylethyl radical, and other saturated and unsaturated aliphatic or cycloaliphatic radicals such as the vinyl, allyl, butadienyl, propinyl, cyclohexanyl, cyclohexenyl or cyclopentanyl radical; each of these organic radicals may have other radicals attached thereto, e.g. halogen or nitro radicals. Mixtures of the above disilanes are obtained when operating the process of Specification 575,667, e.g. a mixture of methylchlorodisilanes of the general formula given above, wherein R represents the methyl radical, and containing large amounts of 1,1-dimethyl-1,2,2,2-tetrachlorosisilane and 1,2-dimethyl-1,2,2,2-tetrachlorodisilane, and 1,2-dimethyl-1,1,2,2-tetrachlorodisilane and isomeric trimethyltrichlorodisilanes as well as small amounts of methylpentachlorodisilane and isomeric tetramethyldichlorodisilanes. The hydrocarbon halide may be of the general formula R1X, wherein X is a halogen, e.g. chlorine, bromine or fluorine, and R1 is a monovalent hydrocarbon radical, e.g. a methyl, ethyl, propyl, butyl, isobutyl or hexyl radical, an aryl radical such as the phenyl or naphthyl radical, an alkaryl radical such as the tolyl, xylyl or ethylphenyl radical, an aralkyl radical such as the benzyl or phenylethyl radical, a vinyl, allyl, cyclohexyl or cyclohexenyl radical.  The reaction may be carried out in the presence of a metal catalyst for the reaction, e.g. copper.  It is preferred to carry out the reaction at a temperature of the order of 250 DEG  to 800 DEG  C. When methylhalogenodisilanes are used it is preferred to carry out the reaction at a temperature of from 350 DEG  to 600 DEG  C., e.g. for the reaction between chlorobenzene and a mixture of methylchlorodisilanes corresponding to the above general formula. In the example, a mixture of the methylchlorodisilanes referred to above is reacted with chlorobenzene.  Specification 685,656 also is referred to.
Patent GB-570907-A (GB)
Title: Improvements in or relating to the cooling of aircraft engines
IPC: F01P7/02
Filed: 1943-11-29
Abstract: 570,907. Shutters for aircraft radiators &c. HAWKER AIRCRAFT, Ltd., STANBURY, J. V., and PAGE, F. W. Nov. 29, 1943, No. 19932. [Class 64 (iii)] [Also in Group XXVII] A movable shutter for controlling the outflow of air from an engine bay, radiator or cowling of an aircraft is so mounted on the aircraft that during the first part of its opening movement it does not project into the air stream, whilst during the latter part of its opening movement it moves outwardly into the air stream in order to provide a maximum outflow of air. Two panels 1, 2 forming the shutter are hinged together at 3. and have fixed to them at the top and bottom (not shown) pairs of trolleys 4, 8 with rollers 5, 9 running in channels fixed to the aircraft. The front channels 7 are straight, and the rear channels are composed of a rear straight part 14 and a front inwardly curved part 13. Each rear trolley 8 has a forward extension 16 carrying a roller 15. When the shutter is first moved forwardly, both panels move in their own plane, but when the rollers 15 enter the curved parts 13 of their channels the panel 2 is turned outwardly into the air stream. The shutter is moved by a chain 20 attached at 23 to the panel 1 and operated, for example, thermostatically or by the pilot. A shutter is arranged at each side of the aircraft, and two or more may be arranged in succession.
Patent GB-1085445-A (GB)
Title: Improvements in or relating to valves for aerosol dispensers
IPC: B65D83/16
Filed: 1965-05-12
Abstract: 1,085,445. Dispensing liquids by gaseous pressure. W.J. RAEHS [trading as UNIPLAST DR. RAEHS KOMM GES]. May 12, 1965 [Nov. 7, 1964], No.19995/65. Addition to 966,468. Heading F1R. In a valve according to the parent Specification stops are provided to limit the downward movement of the plunger during pressure filling of the container. The stops may comprise projections 15 on the seating member engageable by the lower edge of the plunger 5 and/or a projection 16 on the top of the plunger which is engageable with the top of the seating member 2.
Patent GB-531829-A (GB)
Title: Improvements in or relating to eight day clock-work
IPC: G04F7/08
Filed: 1939-07-10
Abstract: 531.829. Eight-day clockwork. ETABLISSEMENTS E. JAEGER, SOC. ANON. July 10, 1939, No. 20030. Convention date, March 29. [Class 139] In an eight day clockwork with chronograph and double round of hours, the mechanism of the chronograph and double round of hours is arranged externally of the bridges of the movement proper, their engagement, disengagement and setting back to zero being effected by a push piece at one side of the dial moving perpendicularly thereto. The wheel 5 is integral with the fourth' wheel with whose pivot 6 it rotates and transmits motion to a wheel 7 carried by detent 8, and a wheel 9 integral with the pivot of the great wheel 10, and also to wheels 11, 12 carried by the detent 13. The movement of the detent 8 has the effect of causing the wheel 7 to engage the centre wheel 14 transmitting motion to the chronograph hand 3 this wheel being integral with a heart piece 15 for setting back to zero. The movement of the detent 13 brings wheels 11, 12 simultaneously into contact with the minute and hour-hand wheels 16, 17 of the double round of hours. These wheels carry heart pieces 18, 19 for setting-back to zero. The detents 8, 13 are operated by a pin-wheel 20 worked by a pivoted detent 21 moved by a push piece 22 having a knob 23. Each push on the knob 23 causes the wheel 20 to rotate through an angle that at one moment actuates detents 8, 13 to connect all the train of wheels to set the chronograph and double round of hours in action, and at another moment causes stoppage of the hands. In a third position, the pin wheel moves a forked lever 26 ending in three hammers 27, 28, 29 to set by means of the heart pieces the hands 3, 30 and 31 back to zero. The usual springs are fitted to the detents and forked lever as shown. The usual watch mechanism shown is not described.
Patent GB-662018-A (GB)
Title: Improvements relating to pearl-effect materials
IPC: C01G13/04
Filed: 1949-08-02
Abstract: Mercurous chloride, suitable for imparting pearl effects to plastics, is produced by reduction of mercuric chloride (see Group III), and washing the crystals with water containing 0.001 to 0.5 per cent by weight of a protective colloid such as gum arabic, gelatine or an aqueous dispersion of the calcium salt of hydrolised fish scales or of a wetting agent such as soap or Aerosol OS or OT.  The colloid &c. protects the lustre of the crystals.  The water may thereupon be displaced by an organic solvent such as methyl or ethyl alcohol, dioxane, tetramethylene oxide or glycol monoethyl ether, and the crystals used as such or incorporated into a liquid compatible with the plastic, e.g. butyl acetate, benzene, toluene in the case of cellulose nitrate. A plastic binder may be added to the liquid to hold the crystals in suspension.  The suspension may then be mixed with, e.g., cellulose acetate, nitrate, or ethers, or polystyrene, polyethylene or polyvinyl esters.ALSO:Mercurous chloride suitable for imparting pearl effects to plastics is produced by reducing mercuric chloride with a phosphite, e.g. of sodium, potassium or lithium, in aqueous solution of pH 5-9, removing the crystals and washing them under such conditions that the nacreous lustre is preserved.  The mercuric chloride may be employed as such, or there may be employed a solution prepared from say mercuric acetate or nitrate and sodium chloride.  The concentration of mercuric chloride may be 1.5-7 per cent by weight, and that of the phosphite 0.3-2.5 per cent by weight reckoned as Na2HPO3.  The presence of sodium or potassium chloride from 1.0 to 10 per cent or more by weight is also desirable.  The phosphite may be prepared by neutralization of phosphorous acid, or preferably, by neutralizing a solution of phosphorous trichloride in water whereby there is also produced the desired alkali chloride. Reduction may be effected at 10-95 DEG C., and when it has proceeded to 95 per cent completion, the reaction is stopped by the addition of acid, e.g. hydrochloric.  The washing water should contain 0.001 to 0.5 per cent by weight of a protective colloid such as gum arabic, gelatine or an aqueous dispersion of the calcium salt of hydrolyzed fish scales, or of a wetting agent such as soap or Aerosol OS or OT. The colloid may also be added to the reacting solution.  U.S.A. Specification 1,809,449 is referred to.
Patent GB-315267-A (GB)
Title: Improvements in or relating to method of and apparatus for indicating, recording and computing certain manifestations, such as pressure involved in meters
IPC: G01P5/14
Filed: 1929-07-01
Abstract: 315,267. Young, A. E. July 10, 1928, [Convention date]. Proportional calculators.-A computing device comprises a linkage connecting four points Q, P, H, O in such a manner that the relation OQ = #OH Î OP is always maintained as the linkage shifts with the shifting of the points. The device is described as applied to the recording mechanism of a differential pressure gauge for a flow meter. A float 9 rests in mercury in a chamber 10 forming with a pipe 18 one leg of a U-tube the other leg 19 of which is connected with a tank 21 which is kept at a constant pressure. Points 13, 33 at the top of the chamber 10 and a similar chamber 27 are connected bv a pipe 14 to the up-stream side of an orifice meter in the conduit 16. The float 9 therefore moves in response to the up-stream pressure in the conduit and the movement is transmitted by a slotted arm 6 on a pivot 5 to an arm 3 on the same pivot. The chamber 27 is connected at the bottom by a pipe 30 to a chamber 31 and forms therewith a U-tube in which is mercury, the leg 31 being connected to the down-stream side of the orifice. The movement of a float 26 in the chamber 27 is transmitted by a slotted arm 24 mounted on a pivot 23 to an arm 4 which is thus moved correspondingly to the pressure difference on opposite sides of the orifice. Extending across and carried by the casing 1 containing the clockwork, and across the chart 2 is a slotted guide 35 the centre of which coincides with the centre of the chart. In one with the guide 35 is a slotted guide 50 at right angles to it in which moves a pin 48 passing through the corner of a square formed by two slotted arms 44, 45. A pin 42 passes through the slotted arm 44 and the slotted end 43 of the arm 4 and works in the guide 35. A pin 37 passes through the arm 45 and slotted end 38 of the arm 3 and works in the guide 35. Weighted extensions 44a are provided on the square so that the centre of gravity coincides with the pin 48 and the square is suspended at this point by a cord 51 passing over a pulley to a balance weight 53. From the property of a right-angled triangle OQ = #OHÎOP and the point Q therefore moves so that OQ changes in proportion to the square root of the product of the pressure in, and the pressure-difference on opposite sides of a constriction in a conduit. The recording pens are carried at the points 54, 55, 59 upon extensions from the points P. H. Q. Three other constructions of suitable linkages are described based upon first the geometrical figure, Fig. 8 where 0 Q H is a rightangled triangle and OQ = #OHÎOP; secondly on Fig. 10 where the lines 79 H, 79 Q, 79 P are all equal and the same relation holds; and thirdly on Fig. 12, where the point P is not in the line OH, and OP = OP' and the link PP<1> moves parallel to itself.
Patent GB-868819-A (GB)
Title: Electrolytic system
IPC: C23F13/04
Filed: 1957-10-14
Abstract: 868,819. Preventing corrosion. SABINS, R. C. Oct. 14, 1957; No. 20168/59. Divided out of 868,810. Class 123(1) [Also in Group XXXV] An electrolytic system comprises an electrolyte, a cathode 21, an anode 22 and a reference electrode 38 normally connected to the cathode through a milli-volt meter 40 and a switch 44, 48, which is arranged to depolarize the electrode 38 by a further contact 52 on the switch by introducing a battery 51 into the circuit. The reference electrode may be silver-silver chloride and the e.m.f. of the circuit may be generated by suitable disposition of the anode and cathode in the electro-chemical series, or from a separate source such as a generator or rectifier connected between the anode 22 and another anode 23. A circuit providing automatic depolarization is described in the Specification which measures the e.m.f. between the electrode, and cathode, and operates a thermally, delayed relay circuit to depolarize the electrode when the electrodecathode voltage falls.
Patent GB-1271731-A (GB)
Title: Apparatus for spraying workpieces with comminuted material
IPC: B05B5/03
Filed: 1969-04-21
Abstract: 1,271,731. Coating apparatus. ATLAS COPCO A.B. 21 April, 1969 [26 April, 1968; 14 Jan., 1969; 27 March, 1969], No. 20346/69. Heading B2L. Apparatus for spraying powdered material comprises a hopper 11 with a porous sintered body for fluidising the powder therein a sub chassis 3 mounted on rubber blocks supporting the hopper and an injector 15 which blows powder from a trough 6 under the hopper to a spray gun 32, a vibrator 8 for oscillating the sub chassis 3 vertically and a vibrator 7 for oscillating the trough 6 horizontally, an electrostatic generator also being provided for charging the powdered material as it leaves the gun the hopper having at its lower end a rotating turnstile valve 65. The hopper 11  is removable and is held in place by a bayonet fitting. The injector has a funnel 15 into which powder is dropped from the trough 6 and air from line 18 carries the powder into a pipe 26 leading to the spray gun.
Patent GB-837634-A (GB)
Title: Improvements in and relating to a regulator for a time-piece
IPC: G04B18/02
Filed: 1957-06-28
Abstract: 837,634. Clocks and watches. MANUFACTUE DES MONTRES DOXA S. A. June 28, 1957 [July 18, 1956], No. 20453/57. Class 139 In a timepiece the hair spring buckle or guard 12, Fig. 1, is carried by a resilient extension 9a of the regulator 7, 9. The hair spring is released by deforming the resilient extension 9a to move the buckle 12 away from the curb pin 11.
Patent GB-1514639-A (GB)
Title: Test method to determine pulmonary embolism
IPC: A61K39/00
Filed: 1976-05-18
Abstract: 1514639 Detecting pulmonary embolism E SILVERSTEIN 18 May 1976 [20 May 1975 13 May 1976] 20507/76 Heading G1B [Also in Division C3] A method of determining the presence of a pulmonary embolism in a human comprises utilizing (a) human lung tissue or (b) an antigen prepared from human lung tissue in the production of an animal antiserum, if (a) was used, absorbing the antiserum with normal human serum to remove extraneous antibodies and separating the resulting antiserum, incubating the animal antiserum with a test sample of human serum and determining the presence of a pulmonary embolism in the human by the occurrence of an immunological reaction, for example by immunodiffusion or electrophoresis in agar gel, or by colorimetric or radio counting procedures using a tagged material. The human lung tissue antigen is described in Group C3.
Patent GB-1089810-A (GB)
Title: Moulding compositions based on styrene polymers or copolymers
IPC: C08K5/17
Filed: 1966-05-09
Abstract: Moulding compositions comprise polystyrene, a styrene/butadiene copolymer or a mixture of polystyrene and polybutadiene, and as anti-static agent an N-C14- 20 alkyl diethanolamine. The compositions may also comprise diffusion increasing agents such as hydroabietyl alcohol or polyglycol esters.  Examples describe compositions comprising styrene/butadiene copolymers, and (1) C14- 16 alkyl diethanolamine, together with (2) hydroabietyl alcohol.
Patent GB-292800-A (GB)
Title: Improvements in signs for advertising purposes
IPC: G09F7/08
Filed: 1927-08-04
Abstract: 292,800. Goodman, H., and Goodman, A. Aug. 4. 1927. Loose-letter and like signs.- In signs of the type in which characters are provided with integral extensions at their upper and/or lower ends to engage longitudinal slots in parallel tubular members, the material of the extension 4 is made thinner at the junction 3 with the character 1 to enable it to slide in the slot. The thickness of the part 4 of the extension, which lies within the tubular member, is the same as that of the character. The parallel tubular members may be connected together by the characters or by end pieces.
Patent GB-276494-A (GB)
Title: Improvements relating to valve operating mechanism
IPC: F16K31/04
Filed: 1926-08-20
Abstract: 276,494. Dale, W. B., Hopkinson. R. A., and Hopkinsons, Ltd. Aug. 20, 1926. Electrically-actuated valves. -Relates to valve operating mechanism comprising an electric motor, a clutch mechanism, and a distant control switch used in conjunction with automatic limit switches which are opened to cut off the current to the motor when the valve is fully opened or closed as, for example, that described in Specification 265,824. In such mechanism it is proposed to use one or more emergency switches d, which, when closed by pressure on the knob a to initiate either the opening or closing of the valve, is or are automatically held closed by the electromagnet b in circuit with the motor until the completion of the opening or closing of the valve; whereupon the circuit is broken and the contacts d, e of the emergency switches are opened by the action of the springs c.
Patent GB-248639-A (GB)
Title: Process of making bleaching earth from clay
IPC: B01J20/12
Filed: 1925-08-17
Abstract: 248,639. Erdwerke M³nchen O. Lietzenmayer. March 25, 1925, [Convention date]. Aluminium silicate.-Clay is purified by making it into a paste with enough acid to combine with the impurities, then drying the paste by heat, an air current, or by vacuum and then leaching the mass with warm or cold water. The purified sludge is dried and ground. The degree of drying to which the clay and acid mixture is submitted is such as to leave the impurities in a form in which they are soluble in water.
Patent GB-304679-A (GB)
Title: Improvements in sewing machines
IPC: D05B3/18
Filed: 1928-07-16
Abstract: 304,679. Roseman, L. Jan. 24, 1928, [Convention date]. Feeding long lengths of fabric; eyeletted tape attaching machines.-A sewing-machine for attaching tapes with metallic fasteners has positioning means synchronised with the feed to engage the fasteners while the needle enters just in front of and just behind each fastener, to prevent the needle catching thereon owing to uneven feeding at high speed. In the example illustrated, a machine has a needle bar 12 carrying two needles 12<1>, 12<11> which vibrate laterally to assist the feed dog 15. The tape 18 is passed over a roller 39, between feed-rollers 36, 45, Fig. 3, and over the work support to the feed dog 15 where it and the fabric 19 are clamped down by the presser foot 13. The needle bar is reciprocated in the usual way by a main shaft 14. This shaft drives a vertical shaft 24 through gearing 25, 26, Fig. 1, which in turn drives a shaft 33 through gears 30, 31, 35 to drive the feed rollers 36, 45. These rollers can be separated against a spring 48 to insert the tape by a lever 49 and cams 51. Fig. 3. To ensure even feeding of the tape, a bar 54 having a fastenerengaging end 55, Fig. 1, is reciprocated synchronously with the feed by a lever 56 pivoted at 58 and rocked by the roller 59 and eccentric 60 on the shaft 29. The shaft 29 is driven by gears 31, 30 from the shaft 24. For ensuring that the fasteners do not accidentally occupy a position below the needle owing to uneven feed at high speed, a positioning device carried by the pivoted frame 63 is provided just in front of the sewing point. This device comprises two bars 68, 78, Fig. 5, the bar 68 of which engages the fastener 20 to prevent its forward movement while the needle enters in front of the fastener at a. When the needle is withdrawn, the bar 68 is also withdrawn by a lever 73, Fig. 1, operated by the face 91 of the cam 90 driven by the shaft 29. The tape 18 is then fed forward till the fastener 20 is stopped by engaging the bar 78. The needle then enters just behind the fastener. When the needle is withdrawn, the face 92 of the cam 90 imparts a further retrograde movement to the bar 68 which moves back the bar 78 by the engagement of the pin 86 with the shoulder 85. To permit the device to be set for fasteners of differing width, a nose 87<1> in the boss 87 can be caused to engage a cam surface on a disc on the shaft 29, which is normally out of action. This causes the casing 63 to swing about its pivot to allow for narrow or wide fasteners. By employing a double faced cam to co-operate with the nose 87', one bar only can be used to engage the fastener in both its positions relative to the needle.
Patent GB-311985-A (GB)
Title: Lubricant retainer for universal joints
IPC: F16D3/205
Filed: 1928-07-17
Abstract: 311,985. Haddan, R., (Universal Products Co., Inc.). July 17, 1928. Universal joints.-In universal joints of the kind described in Specifications 225,783, and 261,989, the ball head 1<a> on the driven shaft 1 is embraced by a tubular lubricant-retainer, preferably of drawn metal, comprising a hemispherical end 4 and cylindrical part 4a, which extends outside the grooved casing 2, 2a on the driving-shaft 10, a sealing-washer W being secured to the casing by a ring 5 having a flared extension 5<d>, to which a flexible dust-excluding jacket may be attached. The casing is packed with lubricant, and in order to prevent escape thereof to the interior of the member 4, 4a through the slots 4<c> for the usual transverse pin lb, a divided ring 6 is pressed against the head la, as by a spring washer 7 abutting against a wire ring 8. The member 4, 4a forms also a guide for the head 1<a> and a seating for the compression spring 3, being provided with a neck 4<b> to engage the spring.
Patent GB-1434462-A (GB)
Title: Disazo dyestuffs
IPC: C09B31/047
Filed: 1974-05-10
Abstract: 1434462 Disazo dyestuffs BAYER AG 10 May 1974 [12 May 1973] 20765/74 Heading C4P  Novel disazo dyes of formula (where R 1  is optionally substituted aryl or C 1-4  aliphatic hydrocarbyl, or dialkylamino; R 2  is Cl, Br, OH or optionally substituted C 1-4  alkyl or alkoxy; R 3  is H, Cl, Br, aryloxy or optionally substituted C 1-4  alkyl or alkoxy; R 4  is H, Cl, Br, acylamino or optionally substituted C 1-4  alkyl or alkoxy; R 5  is H or optionally substituted alkyl; R 6  is optionally substituted alkyl; n is 0-2 and B is a 1,4-naphthylene, 6- or 7-sulpho- 1,4-naphthylene, or 5,6,7,8-tetrahydro-1,4-naphthylene radical) are prepared by diazotizing the appropriate amino phenylazonaphthalene compounds and coupling with the appropriate aniline derivative. The monoazo compounds are prepared by diazotizing the corresponding aniline and coupling with an amine of formula H-B-NH-Q, where Q is H, -CH 2 SO 3 H or -SO 3 H, then converting the -NHQ group to -NH 2  if required. The dyes are used for colouring natural and synthetic fibre materials, particularly polyamides, in red, blue, or black shades.