baber/WOPTO huggingface dataset:
Patent GB-677805-A (GB)
Title: Improvements in or relating to interpolymers
IPC: C08F214/06
Filed: 1950-10-03
Abstract: Vinyl resins which are processable without the addition of plasticizers are obtained by polymerizing a mixture comprising 35 to 90 per cent by weight of vinyl chloride 5 to 50 per cent of a vinyl ester of an aliphatic monocarboxylic acid or of an aromatic acid in which a single carboxyl group is attached to the nucleus, and 5 to 60 per cent of an alkyl acrylate in which the alkyl group contains a chain of 5 to 10 carbon atoms.  Up to 10 per cent of a fourth component, e.g. vinylidene chloride, diethyl fumarate, acrylonitrile, styrene and lower alkyl acrylates may be present in the mixture. Vinyl acetate and benzoate are the preferred esters but the esters of propionic, butyric, caprylic, lauric, stearic, salicylic, aminobenzoic, chlorobenzoic, toluic, chlorotoluic, naphthoic and pyrocatechuic acids are also mentioned.  Specified alkyl acrylates are n-hexyl, n-amyl, n- and iso-heptyl, capryl, n- and iso-octyl, n- and iso-nonyl and n-decyl acrylates. Polymerization may be effected in aqueous emulsion, with or without an emulsifying agent, in solution, e.g. in acetone, resulting in granular polymers, or in bulk.  Many examples of emulsifying agents are given.  Pearl polymers may also be obtained p  by polymerizing in an aqueous medium containing colloidal suspension agents, e.g. gelatine, bentonite clay, polyvinyl alcohol and polyacrylic acid.  There is preferably an absence of air and the temperature may vary from -30 DEG  C. or lower to above 100 DEG  C.  The reaction is catalysed by actinic light or by a peroxygen compound, e.g. hydrogen peroxide, benzoyl peroxide, o,o1-dichlorobenzoyl peroxide, caproyl peroxide, caprylyl peroxide, pelargonyl peroxide, cumene hydroperoxide, tert.-butyl hydroperoxide, 1-hydroxy-cyclohexyl hydroperoxide, tert. - butyl diperphthalate, tert. - butyl perbenzoate, sodium, potassium and ammonium persulphates, sodium perborate and sodium percarbonate. These may be used in a redox combination which may be activated by a heavy metal salt.  Thus, potassium persulphate may be activated with silver ion and ammonia, with silver ion alone or silver ion and water-soluble oxalates; or with copper ions and sulphate ions. Buffers, of which several are specified, may also be employed.  To improve the homogeneity of the products, the vinyl ester and/or the acrylate is introduced during the course of the polymerization.  Emulsion polymerization may also be effected in the presence of seed latex. The products, which range from soft, flexible materials to hard solids, may be cast or calendered into sheets having good drape, extruded into tubes and rods, milled with stabilizers &c. such as strontium and cadmium naphthenates, lead stearate, barium ricinoleate and carnauba wax, and coated on paper.
Patent GB-369142-A (GB)
Title: Improvements in and relating to the treatment of copper-protoxide and articles made therefrom
Filed: 1931-08-27
Abstract: Pieces of compact cuprous oxide are heated at 400-650 DEG  C. and then quenched, whereby their electrical resistance is lowered. When the bodies are produced by heating shaped pieces of copper to 1000 DEG  C. or above in an oxidizing atmosphere they may be cooled to and retained at the required temperature and then be quenched. The product may be used in the construction of light-sensitive cells, thermopiles, or rectifiers.
Patent GB-793965-A (GB)
Title: 2-phenyl-2-alkylthioethylamines
Inventor: DRAIN DAVID JOHN
Filed: 1955-08-23
Abstract: This invention comprises 2-phenyl-2-alkyl-thioethylamines of the general formula <PICT:0793965/IV (b)/1> wherein R represents an alkyl group, R1 and R2 each represent a hydrogen atom or an alkoxy group, and R3 and R4 each represent a hydrogen atom or an alkyl group; and the manufacture thereof by reacting an appropriate b -nitrostyrene with an alkylthiol in the presence of a small quantity of a strong organic base as catalyst, and reducing the resulting 1-alkylthio-2-nitro-1-phenylethane.  The resulting amines may then be alkylated to give compounds where R3 and R4 are alkyl.  In an example, 2-n-propylthio - 2 - phenylethylamine hydrochloride is prepared by reacting b -nitrostyrene with propane-1-thiol in the presence of a small quantity of piperidine, and reducing the crude oil, 2-nitro-1-phenyl-1-n-propyl-thioethane to the amine with zinc dust and acetic acid.  The amine is converted to the hydrochloride by treatment with saturated isopropanolic HCl.  Similarly are prepared hydrochlorides of compounds wherein R1 and R2 are both -H and R is -CH3, -C2H5, -C3H7(n), -C3H7(iso); R1 is -OCH3, R2 is -H and R is -C2H5, -C3H7(n), -C3H7(iso); and R1 and R2 are both -OCH3 and R is -C2H5. N-Dimethyl-2n-propylthio-2-phenylethylamine hydrochloride is prepared by alkylating the appropriate amine with formic acid and formaldehyde in the presence of sodium bicarbonate and converting the amine base into the hydrochloride as above.  In the reaction of 3,4-dimethoxy-b -nitro styrene with ethanethiol, the intermediate 1-(3,4-dimethoxyphenyl) - 1 - ethylethio - 2 - nitroethane was isolated as a crystalline solid.
Patent GB-1385979-A (GB)
Title: Production of a magnesium resinate of disproportionated rosin
IPC: C09F1/04
Filed: 1972-05-23
Abstract: 1385979 Magnesium resinates REICHHOLD CHEMICALS Inc 23 May 1972 [14 June 1971] 24235/72 Heading C4D A magnesium resinate of disproportionated rosin, containing 3-8% by wt. combined magnesium, is claimed per se, and produced by heating at 40-100‹ C. a reaction mixture comprising 100 p.b.w. disproportionated rosin having an ASTM Ring and Ball Softening Point of 35-60‹ C., 3-8 p.b.w. of a reactive magnesium compound, 0À1-1 p.b.w. of an alkanoic acid and a solvent for the rosin having a BPt. above 140‹ C. in an amount such as to give a solids concentration of 25-80% by wt. therein. The magnesium compound may be the oxide, formate or acetate, the acid formic, acetic or propionic, and the solvent mineral spirits or xylene. After reaction, the mixture may be heated to 150-260‹ C. to remove the solvent, and then sparged with steam.
Patent GB-1420144-A (GB)
Title: Apparatus for testing electrical elements located in an enclosure
IPC: G01F23/26
Filed: 1973-03-24
Abstract: 1420144 Fuel tank gauging systems-testing GULL AIRBORNE INSTRUMENTS Inc 23 March 1973 [24 March 1972] 24318/74 Divided out of 1420142 Heading G1N A plurality of components such as capacitor gauges 46, 47 in an enclosure such as an aircraft wing fuel tank are connected by slack leads 75, 76 to terminal blocks mounted on a withdrawable support rod 48 so that they can be tested in situ. A more detailed construction of the support and terminal-blocks is illustrated in Figs. 27..29 (not shown).
Patent GB-334038-A (GB)
Title: Improvements relating to the construction of gas fires
IPC: F24C3/04
Filed: 1929-08-09
Abstract: 334,038. Bell &. Co., Ltd., A., and Bell, N. M. Aug. 9, 1929. Gas fires. - A gas fire which can be supplied, together, with a mantel or surround, as an assembled unit ready for fixing, comprises cement, concrete, or other cheeks a formed in one with or secured to the cement backing b of the surround and a back portion b<1> either integral with the cheeks or formed by a metal plate connecting them, the back having means for supporting the firebrick e, burner f, and injector g. In the construction shown the back b<1>, which is integral with the cheeks, is recessed to carry the firebrick, and the burner and injector are carried by a projecting slab m. A loose fret k covers in the lower parts of the fire. The flue opening n at the top may be covered by a metal plate formed to receive a flue pipe. The back plate and cheeks may be formed integrally of metal, the cheeks being bolted to the cement backing. When the fire is to be fitted against a wall instead of into a fireplace opening the return ends of the mantel surround are of sufficient depth to cover in the internal parts.
Patent GB-690737-A (GB)
Title: An improved plate-type apparatus for the cooling of liquids such as water, by means of air
IPC: F28F25/08
Filed: 1949-09-24
Abstract: 690,737. Cooling towers. OTTE, W. Sept. 24, 1949, No. 24598/49. Class 64 (i) [Also in Group XII] Apparatus for cooling liquids in which the liquid to be cooled(e.g. water) flows in a thin film over plate surfaces in counterflow to an ascending air stream, comprises a plurality of spaced cooling elements each consisting ofa plurality of vertically arranged thin plates 3 of ceramic material such as asbestos cement, the ends of the plates resting on horizontal, parallel supporting beams 5 and each element being confined between vertical beams 6 of the apparatus, the individual plates being spaced apart by interposed distance pieces 4. The distance pieces 4 may be secured to one or other of adjacent plates by means of an adhesive binding agent such as concrete, waterglass, synthethic resin or the like having a high resistance to corrosion by water or they may be formed with projecting heads (Fig. 4) which rest on the upper edges of the plates or they comprise bifurcated members resting astride each plate (Fig. 5). The plates may be formed with grooves or slots to slow down the speed of the cooling fluid as it flows downwardly over the plate surfaces.
Patent GB-1476623-A (GB)
Title: Apparatus for fermenting tea leaf
IPC: A23F3/08
Filed: 1974-05-16
Abstract: 1476623 Fermenting tea F A HOPPER 16 May 1974 [23 May 1973] 24726/73 Heading A2B In tea fermenting apparatus of the kind described in Specification 1085525 the gas supply is controlled by temperature sensing devices 25 located in the gas exhaust chimneys 24, which operate valves 18 located in the gas supply lines. The space beneath the conveyor is divided into sub-sections 13 and an arm 23 attached to a moving baffle 21 operates the valves 15 controlling the gas supply to each sub-section 13. The hot exhaust gas may be recycled to a conveyor section nearer to the discharge end of the conveyor.
Patent GB-728904-A (GB)
Title: Improvements relating to the making of sound recordings
Inventor: GARNER CHARLES FREDERICK
IPC: G09F25/00
Filed: 1951-10-23
Abstract: 728,904. Embossing; feeding webs. TALKING DEVICES, Ltd. Jan. 23, 1953 [ Oct. 23, 1951], No. 24731/51. Classes 100 (1) and 100 (2). [Also in Groups V and XXXVIII]_ A method of making a hill-and-dale sound record on a plastic tape from a variable density sound film, comprises the production of a metal record on a plastic tape from a variable density die by means of a known photo-chemical etching process, and using the die to impress the plastic tape. The die forming a master record 21 is clamped to the periphery of a wheel 23, which is rotated by means of a motor 30, so that at each turn of the wheel 23 a duplicate of the recording is impressed on a plastic tape 26 drawn from a spool 27 onto another spool 28. The tape 26 is pressed against the wheel 23 by a roller 24 which is mounted on a bridge 25 pivoted on a shaft 40 and pulled down against the wheel 23 by a hydraulic ram 41. A further roller 55 presses the tape against a heated spring- loaded arcuate metal member 50. The wheel 23 contains electric heaters which are coupled to an electric supply by means of slip rings 37 and brushes 38. The steel die is made with a fishtail at one end and a point at the other end so that when arranged on the wheel 23, the ends engage each other in a manner which ensures their alignment. The resulting V-shaped mark which is impressed on the tape serves to indicate the start of each duplicate record. Guiding webs transversely. The tape is passed between four pairs of guide rollers 47, the lower roller of each pair being grooved to effect transverse guiding of the tape. Level winding on the spool 28 is effected by means of a transversely movable element 73, 74, Fig. 8, which moves on a carriage 72 under the control of a cam 77 rotated by a motor 78.
Patent GB-935273-A (GB)
Title: Fluid flow control valves
IPC: F16K11/085
Filed: 1961-07-07
Abstract: 935,273. Valves. A. LINS. July 7, 1961 [July 20, 1960], No. 24744/61. Class 135. Fluid flow from an inlet 29 to a pair of outlets 30, 31 is controlled by a double-beat valve on a spring-loaded stem 15, having a projection 16 on a plate 14 that engages an edge cam 6c on a member 6 rotatable by a knob 7 passing through a guide 4 supported by struts 2. An extension 14a of the plate 14 abuts one of the struts 2 to prevent rotation of the plate. The valve is employed in a heating system, the inlet 29 being connected to the circulating pump whilst one outlet is connected to a boiler inlet pipe and the other to the boiler outlet pipe.
Patent GB-1245675-A (GB)
Title: Improvements in or relating to electrical heating tapes
Inventor: REIK HANUS
IPC: H05B3/56
Filed: 1969-05-15
Abstract: 1,245,675. Electric heating cables. ISOPAD Ltd. 6 April, 1970 [15 May, 1969], No. 24841/69. Heading H5H. A flexible electrical heating tape or cable 10 for trace heating comprises a plurality of individually insulated heating element lengths 11, 12 arranged side-by-side with a spacer 13 between each pair of adjacent lengths, the element lengths and spacer(s) being held together by a close fitting protective sheath 14 of tougb braided material. Two elements are joined by a crimp 15 near one end of the cable, or a single length of insulated wire is doubled back on itself to form two parallel element lengths. With a three-phase supply, three elements and two spacers are laid side-by-side. Elements 11, 12 are insulated individually by PTFE sheathing covered by a silicone varnished glass braid. The spacer 13 is asbestos, glass roving, glass braiding or other high temperature resistant insulating material, or may be of conductive material, such as copper wire used as an earth conductor. Sheathing 14 is of toughened glass braid, silicone varnished, or is of metal braiding such as stainless steel, copper, or stainless steel and copper. Cold tails 17, 18, are attached to elements 11, 12, as in Specification 1,167,343, sleeves 19, 20 of irradiated plastics material being shrunk over the crimped joints as protection. A tag 21 is attached to the braided sheath 14 for securing and/or earthing the cable 10. Where elements 11, 12 separate from the sheath 14, a protective sleeve 22 of irradiated PTFE is shrunk over the cable, and a brass terminal gland 23 fitted over it.
Patent GB-715791-A (GB)
Title: Improvements in and relating to liquid atomisers
IPC: B05B11/06
Filed: 1951-10-05
Abstract: 715,791. Spray-producers. FERSTER, C. F. Oct. 6, 1952 [Oct. 5, 1951], No. 24950/52. Class 69 (3) A hand operated sprayer includes a body 2, e.g. of artificial resin, consisting of a part 3 for connection to a liquid container, a pump cylinder 1 and a nozzle 5. A piston 10 is sandwiched between discs 12 and 15, and the disc 12 has a protruding part 11 which passes through the piston and is secured to a cap 17. A liquid tube 7 and a piston return spring 13 are provided, and in operation an air opening 19 leading to the pump cylinder is closed by a finger and air is forced through the nozzle to atomize liquid drawn up the tube 7.
Patent GB-1068467-A (GB)
Title: Improvements in or relating to feet for support stands
IPC: F16F1/42
Filed: 1965-06-14
Abstract: 1,068,467. Feet for stands. AKUSTISCHE U KINO. GERATE G.m.b.H. June 14, 1965 [July 8, 1964], No. 24993/65. Heading A4U. A resilient foot, especially for fitment to the leg of a microphone stand, comprises a slender solid of revolution with a free lower end formed with an axial bore and an upper end portion which is sufficiently rigid to prevent buckling and which is attachable to a support leg. In one embodiment (Fig. 1) the foot comprises frusto-conical upper and lower ends each having an axial blind bore (2, 4) one of which receives a leg (1). The bores (2, 4) may be of different diameter and/or length. The other bore (4) may accommodate a plug (11) (Fig. 6) of material which is softer than the foot material. The lower base (6) (Fig. 2) may be conical, the foot having a cylindrical outer surface. The generatrix of the surface of revolution may be stepped . (Figs. 3, 4) or curved (Fig. 5). The outer surface of the foot may be longitudinally ribbed (Fig. 7). In another embodiment (Fig. 8) the upper end comprises a cylindrical plug (14) which fits within a tubular leg (16), the latter seating in an annular recess defined by an annular flange (17). In a further embodiment (Fig. 9) two or more lower end portions (19, 20) may extend angularly from a leg engaging portion (18).
Patent GB-318742-A (GB)
Title: A new or improved breast supporter
IPC: A41C3/00
Filed: 1928-08-31
Abstract: 318,742. Richards, Z. M. Aug. 31, 1928. Bust supporters.-A breast support comprises a support a for each breast, preferably of triangular shape with elastic bordering round the edges, and with the two inner ends overlapping, the ends of the supports being provided with short wide bands b to which are secured shoulder straps d and extensions e in the form of tying ribbons, tapes, &c. The bands b may be provided with a loop through which the fastening tapes may be passed, and the latter may be secured by buttons on the lower edge. Front supports f may be provided for attaching stocking or other suspenders-. In another form, the bands b are of tapering form, and one band is slotted for the passage of the other in tying the fastening tapes. Specifications 9705/89, 12760/12, 107,934, 141,501 and 198,227 are referred to.
Patent GB-250612-A (GB)
Abstract: 250,612. National Cash Register Co., (Assignees of Shipley, B. M.). Jan. 19, 1924, [Convention date]. Cash registers.-In a machine such as that described in Specification 227,861 for registering and printing single-item and multiple-item transactions, the clerks' keys are associated with mechanism for actuating a type element having a clerk's initial or other designation, and with mechanism for releasing the keys after depression and for compelling a depression of a clerk's key before the machine can be released. The clerks' keys 96, Fig. 1, have each a pin 153 for engagement with a rocking lever 154, Fig. 2, pivoted at 155 and moved differentially in either direction by the keys to set the clerk' type wheel (not shown). The type wheel is mounted on a sleeve 163 connected by a link 160 and bell crank lever 157 to the lever 154. The keys are retained in depressed position by a detent plate 164 slidably mounted on studs 166 and positively raised to release the depressed key by a bell crank 168. One arm of the bell crank engages a pin 169 on the detent plate and the other arm 172 is adapted to be engaged by a pin 173 on a segment gear which is rocked during an operation of the machine, the pin 173 being effective on the return movement of the segment. A modification of the means for releasing the clerks' keys is shown in Fig. 4, wherein the detent plate has a projection 905 co-operating with a one-way spring-controlled pawl 906 pivotally mounted on a plate 908 rocked by a link 911 and yoke member 912 by means under the control of the associated printing mechanism. Depression of a clerk's key is necessary as a preliminary to the starting of the machine; a notched plate 182 moved by the depression of a key removes a pin 181 thereon from engagement with an arm 180 on the release shaft 70 of the :machine.
Patent GB-172377-A (GB)
Title: Improvements in or relating to rotary printing machines
IPC: G06J1/00
Filed: 1920-08-31
Abstract: 172,377. Falla, E. J. Aug. 31, 1920. Rotary machines; impression surfaces; intaglio-plate printing; tripping-arrangements.-In a reelfed rotary photogravure printing machine, the web, which remains stationary during the non-printing intervals, is maintained in tension by a pair of clutch driven feed rollers, the pressure between the printing cylinder and one or more detachable plates fitted on the impression cylinder being utilized to feed the web forward during printing. The impression cylinder B, co-operating with an engraved cylinder A, is provided with a detachable plate M corresponding with the engraved part of the cylinder A, a rubber sheet N, Fig. 2, stretched over the cylinder B and secured at one end by a bar N<1> engaging behind pins N<3>, and at the other by a. bar N<2> in slots B<3> in end plates on the cylinder, providing a good gripping surface. A web D from a reel E is passed between a pair of felt friction pads G adjustable by a bolt G', then between the cylinders A, B to feed rollers H, H<1>. The roller H' is driven by friction from the roller H which is driven from a continuously rotating sprocket P<2>, Fig. 7, carrying a disc P<3>. through a clutch comprising a leather washer P<4> pressed against a disc H<3> on the shaft of the roller H by a spring Q, adjustable, in tension by a nut Q<2>. In use, the clutch spring Q and the pads G are adjusted so that the feed rollers H, H' are unable to pull the web through the pads except with the assistance of the extra pull exerted by the plate, M. The web is cut into sheets while it is stationary by a guillotine J operated through a pivoted lever R' provided with a cam end S engaging a cam S<1> on the impression cylinder. The web is guided as it leaves the reel by a jockey roller F, Figs. 1 and 4, of the known kind provided with adjustable side flanges F<1> engaging the sides of the reel, the ends of the roller spindle sliding in slots in a fixed part O. Recesses O<2> are provided for supporting the roller when out of use. The impression cylinder may be tripped by a lever L pivoted eccentrically to the shaft of the impression cylinder and operated by levers L<2>. L<3>. The plates M may be detachably secured to radial arms carried by a a small nucleus cylinder.
Patent GB-259604-A (GB)
Title: Improvements in suction cleaners
IPC: A47L5/32
Filed: 1926-05-25
Abstract: 259,604. Kirby, J. B. May 25, 1925, [Convention date]. Vacuum cleaners.-The rigid nozzle 20 has a flange with a projection 25 fitting into a pocket 31 on the fan casing; the upper side of the flange is held by a. turn-button 26. The flexible hose connection 34 is similarly flanged to replace the nozzle. The pocket 31 is formed by two sheets of metal which at the bottom form a square recess 36, Fig. 5, to receive a cross-bar 37 having eccentric bearings 38 for the wheels. A part 40 of the cross-bar is cut away, engaging a part 41 of the bracket to centre the cross-bar. A propulsion handle 7 or a sad-iron handle 8 with attachments for a shoulder strap 18 may be employed.
Patent GB-206638-A (GB)
Title: Improvements in the manufacture and production of vat colouring matters
IPC: C09B3/30
Filed: 1922-09-16
Abstract: Vat dyes are obtained by treating with an aldehyde, polymerized aldehyde, or acetal, the oxidation product of dibenzanthrone, or the reduction or condensation product therefrom, described in Specification 14498/12; the reaction may be effected in presence of sulphuric acid or indifferent solvents or diluents, with or without condensing-agents.  According to examples, formaldehyde, trioxymethylene, or methylal, paraldehyde, and anthraquinone-2-aldehyde are employed; the products dye violet-blue and reddish-blue shades.  Specification 193,431 is referred to.
Patent GB-1188963-A (GB)
Title: Warp Knitting Adjustment Mechanism.
Inventor: TRAUMULLER MARTIN
IPC: D04B27/34
Filed: 1967-05-31
Abstract: 1,188,963. Knitting-machines. M. TRAUMULLER. 31 May, 1967 [2 March, 1967], No. 25174/67: Heading D1C. The rate of fabric take-up of the take-up roller in a warp knitting machine is varied to cause variation of the loop length to be achieved whereby fabrics having shaped effects in the form of narrow and wide portions of a flat warp knitted fabric or portions of varying diameters in the case of tubular warp knitted fabrics can be achieved. The take down roller is driven from a ratchet wheel 28 rotated periodically by a pawl 24 operated from an adjustable eccentric in a block 19. The pawl is adapted to be wholly or partially bluffed by a plate 56 having a bluffing edge 57 so that the pawl can advance the wheel 28 different amounts and thereby vary the rate of take up of the fabric. The control of the plate 56 is achieved by a pattern chain 42 which depending on the pattern links raises a rod 51 to rotate the plate 56 onto one or other positions whereby it controls the pawl 24.