baber/WOPTO huggingface dataset:
Patent GB-175073-A (GB)
Title: Improvements relating to shop fittings for supplying condiments
IPC: B67D1/16
Filed: 1920-11-11
Abstract: 175,073. Procter, E. W. Nov. 11, 1920. Dispensing liquids. -A shop fitting for delivering condiments in liquid form comprises a receptacle A, Fig. 2, situated in a wall cupboard or under the counter and connected by a pipe with a tubular fitting C provided with one or more spraying- nozzles controlled by hand-operated self-closing valves c. A porcelain or other drainer c<2>, connected by a pipe c<3>, with a suitable drain, may be situated underneath each tap. For sprinkling salt or pepper, the delivery outlet is made in the form of a rose E, Fig. 4, whose perforations e are closed by a perforated rotary plate e<1> adapted to be turned in one direction against the action of a spring to uncover the perforations, and to cover them when released. The top of the plate may be provided with vanes e<2>, so that when it is turned the vanes will disturb the powder and prevent it from sticking fast in the holder.
Patent GB-1027724-A (GB)
Title: Process for manufacture of high impact polymers
Inventor: DEBELL JOHN MILTON
IPC: C08F291/02
Filed: 1963-08-13
Abstract: Graft polymers of rubber and ethylenic monomers are obtained in granular form by adding to a suspending system a rubber latex and catalyzed ethylenic monomer, partially coagulating the disperse phase to obtain suspension size particles, and then polymerizing. The partial coagulation of the disperse phase may be effected by the addition of acid or multivalent ions, e.g. those of aluminium, thereto with agitation, or by intensive agitation alone of the mixture.  Rubbers specified are natural rubber, polybutadiene, polyisoprene, polychloroprene, copolymers of butadiene with styrene or acrylonitrile, and ethylene-propylene rubbers containing residual unsaturation derived from a third monomer.  Monomers specified are styrene, alpha-methylstyrene, vinyl toluene, vinylidene chloride, ethyl acrylate, methyl methacrylate, glycidyl methacrylate and acrylonitrile, and mixtures thereof.  Catalysts specified are benzoyl and lauroyl peroxides and azo-bis-isobutyronitrile. The suspending systems used contain suspending agents, e.g. polyvinyl alcohol, methyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose and calcium hydroxyphosphate. The process makes possible the production of granular graft polymers containing more than 20% of rubber.  The graft polymers have high impact properties and may be used as such or in admixture with polystyrene. The examples describe grafting on to polybutadiene the following monomeric materials: (a) styrene, (b) styrene + acrylonitrile, (c) styrene + alpha - methylstyrene + acrylonitrile and (d) alpha-methylstyrene + acrylonitrile, grafting on to butadiene-styrene copolymers the following monomeric materials: (e) styrene, (f) styrene + vinyl toluene, (g) styrene + vinyl toluene + acrylonitrile, (h) styrene + acrylonitrile, (i) alpha-methylstyrene + methyl methacrylate, and (j) ethyl acrylate, vinylidene chloride and glycidyl methacrylate, and grafting on to polychloroprene a mixture of vinylidene chloride and ethyl acrylate.
Patent GB-1470673-A (GB)
Title: Analogue-to-digital conversion methods and apparatus
IPC: H03M1/00
Filed: 1974-07-18
Abstract: 1470673 Counting apparatus; frequency division ANALOG DEVICES Inc 18 July 1974 [19 July 1973] 31970/74 Heading G4D [Also in Division H3]  In a dual ramp analogue-to-digital converter (Division H3) timing control pulses TCP are derived by counting clock pulses in cascaded counters 70, 72, the first two pulses TCP being produced when counter 72 reaches R. If an error exists in the converter, a signal on line 78 does not coincide with the second control pulse TCP and the count n then in counter 70 is read into a register 80, dropping the least significant bit to divide by 2. Subsequently two further control pulses TCP are produced when comparator 84 detects equality of its inputs and counter 72 registers R or R-1, depending on the sign of the error, the cycle time being lengthened or shortened by n/2 clock pulses with respect to the first two cycles.
Patent GB-1397034-A (GB)
Title: Discharge lamps
IPC: H01J61/18
Filed: 1973-07-05
Abstract: 1397034 Gas discharge lamps THORN ELECTRICAL INDUSTRIES Ltd 19 Nov 1973 [5 July 1973] 32104/73 Heading H1D An ultra-violet emitting mercury vapour discharge lamp has a filling including mercury, magnesium as a halide and an inert gas, the mercury in the envelope amounting to less than 0À5 mg./c.c. of envelope volume. The weight ratio of magnesium to mercury vapour can be within the range 0À002 to 0À1 : 1. The magnesium can be introduced as magnesium metal with mercuric halide. Trace additions of the halides of the following metals can be included: gallium, thallium, aluminium, tin, iron, zinc, yttrium, chromium, bismuth and cadmium. The inert gas can be argon at 20-50 torr. References are made to Specifications 1,360,022 and 1,360,023.
Patent GB-1013156-A (GB)
Title: Improvements in or relating to the manufacture of optical elements of zinc selenide
IPC: C04B35/645
Filed: 1962-08-21
Abstract: <PICT:1013156/C1/1> <PICT:1013156/C1/2> Dense polycrystalline zinc selenide is prepared by moulding pure microcrystalline zinc selenide at a pressure between 10,000 and 50,000 p.p.s.i. at 1550 DEG  to 2000 DEG  F. until homogeneous. The selenide is moulded for 5 to 60 minutes in a chamber either evacuated, preferably to 0.3 mm. of mercury, or containing an inert atmosphere, after which it is allowed to cool in an inert atmosphere, e.g. argon.  The density of the moulded zinc selenide is at least 99% of the theoretical.  Suitable apparatus is shown in Fig. 1 where the zinc selenide 10 is moulded in cylinder 12 by plunger 17 having head 8 which may be attached to a hydraulic press.  Cylinder 12 and base block 13 are provided with thermocouples 28 and 31 respectively. Threaded plug 32 forms a removable base to the cylinder 12, which facilitates removal of element 10 from cylinder 12.  Cylindrical refractory casing 21 and heating unit 14 surround mould 12.  Outer cylinder 29, with cooling coils 25, encloses chamber 30, which may be evacuated by means of conduit 24. Fig. 3 shows induction heating coils 64, water pipe 70 connected by cylindrical water cooling chamber 63, vacuum conduit 65 and vacuum release conduit 66.  Mould insert block 34 forms a plug to the cylinder preventing the escape of charge 41.
Patent GB-1510786-A (GB)
Title: Ventilators
IPC: E06B7/04
Filed: 1974-07-19
Abstract: 1510786 Operating window ventilators J H BIERLICH 18 July 1975 [19 July 1974] 32166/74 Heading E2M [Also in Division F4] A ventilator for mounting between the upper edge of glazing 1 and the upper bar 2 of a window sash comprises bars 4, 5 spaced apart and connected together by spacers 6 to define a ventilation passage, and flaps 19, 20 pivotally mounted on bars 4, 5 respectively at opposite ends of the ventilation passage, and coupled for simultaneous operation, wherein the flaps 19, 20 can be pivoted from positions in which both ends of the passage are closed to positions in which both ends are open. In the form shown, the flaps are coupled together by links 17, 18 connected to one or more crank wheels 16 coupled by a spiral spring 28 to a shaft 14 which is rotatably mounted in the spacers 6, so that the flaps are biased to their closed positions. The spacers 6 are cast or cut from a length of extruded aluminium or nylon. The bars 4, 5 and flaps 19, 20 are cut from lengths of extruded aluminium or plastics material. Alternatively each bar may comprise metal sections separated by a plastics thermally insulating material. During assembly of the venilator, the spacers 6 are slid into engagement with dovetail joints 9, 10 on bars 4, 5 and the flaps 19, 20 are slid lengthwise into engagement with recesses 23, 24 on the bars. Each flap may include an integral rib 30 to act as a handle on flap 19 and a drip strip on flap 20. A radial flow fan (35, Fig. 3) freely rotatable on the shaft 14 ensure that outgoing air is replaced by fresh in-coming air. A gauze insect screen (34) may be provided.
Patent GB-263790-A (GB)
Title: Apparatus for feeding annealing furnaces
IPC: F27D3/06
Filed: 1926-12-20
Abstract: 263,790. Akt-.Ges. Brown, Boveri, et Cie. Dec. 28, 1925, [Convention date]. Charging and discharging.-In apparatus for charging and discharging annealing furnaces of the kind comprising a carriage a carrying a projecting ware-support consisting of longitudinal beams f, the carriage always remaining outside the furnace while the carrier f may either support the charge during the whole heating operation or be lowered to deposit the ware on to fixed supports within the furnace and then withdrawn, the wheels of the carriage and guiding rails therefor are arranged positively to counteract the tendency to tilt when the support f is loaded. As shown in Fig. 5, the carriage a is supported by pairs of wheels d, e, arranged respectively above and below rails b, the axles of the wheels carrying pivoted levers k, i to the shorter arms of which the support f is pivoted, in the former case directly and in the latter through the medium of a link h. The longer arms of the levers k, i are connected, directly and through linkwork n, o, p, respectively, to a counterweight m which normally maintains the carrier in its raised position. A link s is pivoted at one end to the bell-crank p, which is journaled at r in the carriage framework, and at the other to a lever t which is operated to raise and lower the carrier. A frame q, Fig. 8, consisting of transverse refractory rods, may be. interposed between the charge g and carrier f, and rests on the supports u within the furnace when the carrier is lowered and withdrawn. Modifications are described in which the carriage a is suspended from overhead rails and in which the wheels d, e are supported between pairs of rails. Fig. 7 shows a further modification in which the raising and lowering mechanism comprises toggle-levers v pivoted to right and left hand screwed nuts w which travel on an horizontal screwed rod z disposed within a vertical slot in the carriage a.
Patent GB-1363251-A (GB)
Title: Films of plastics material
IPC: B05D7/04
Filed: 1971-07-08
Abstract: 1363251 Coated film MONTECATINI EDISON SpA 8 July 1971 32192/71 Heading B2E [Also in Division B5] Films based on vinyl chloride polymers are obtained by preparing a sheet of polymeric material essentially consisting of vinyl chloride polymer and/or copolymer with a high degree of stereoregularity (defined) and stretching the sheet at least in one direction to provide a film, the stretched film being heat-treated to impart a high resistance to heat shrinkage and the sheet of film being provided with a coating of a vinylidene chloride copolymer and/or vinyl chloride copolymer to impart a high degree of impermeability to gases and/or heat sealability. The sheet of vinyl chloride polymer may comprise a stereoregular polyvinyl chloride which may contain various additives such as co-stabilizers, epoxy derivatives as modifiers, methyl methacrylate-butadienestyrene copolymers as fluidisers, methyl methacrylate polymers of low molecular weight as lubricants, organic and inorganic stearates and possibly lubricating waxes. The sheets may be prepared by extruding or casting from a solution. The stretching operation is preferably carried out in two successive steps in different directions, the first stretching being at a ratio of from 1.2 to 4 and the second at a ratio of from 1.5 to 5. The thermal treatment is carried out on the already stretched film by maintaining a film at 130-180‹C for from 6 seconds to 3 minutes. The coating may be applied before, during or after the stretching operation. The coating material may be applied as a solution in an organic solvent or as an aqueous dispersion.
Patent GB-506169-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L5/32
Filed: 1937-11-23
Abstract: 506,169. Vacuum cleaners. HOOVER, Ltd. Nov. 23, 1937, No. 32226. Convention date, Dec. 11, 1936. [Class 8 (i)] [Also in Group XXXV] The cleaner may be used for off-the-floor cleaning by rotating the handle 3, and with it the casing 2 containing the fan and motor, into a certain position, removing an end plate, and inserting the converter 33.. In this position of the casing, a projection 27 on the nozzle opens the normal low and high speed circuits of the motor and the circuit of a lamp 19, and at the same time a wedge 51 releases a clutch 44a by which the agitator is driven. The insertion of the converter locks the handle in position and by a projection 37 closes the switch 39 of a third-speed circuit. A switch A controlling the circuits is provided in the handle.
Patent GB-647753-A (GB)
Title: Improvements in or relating to electric cables
Inventor: FROST JOHN THOMAS
IPC: H01B7/04
Filed: 1948-12-14
Abstract: 647,753. Screened cables. LIVERPOOL ELECTRIC CABLE CO., Ltd. Dec. 14, 1948, No. 32237. [Class 36] A flexible screen for an electric cable consists of a conducting rubber composition combined with one or more crimped wire conductors. A multicore cable may have the individual cores screened in this manner, or they may. be collectively screened. The screen may be made from two strips c of conducting rubber having the conductors d sandwiched therebetween, and may be applied helically or longitudinally over the cable insulation b. Such preformed screens may also be used for repairing and ensuring the continuity of damaged screens. Specifications 526,895 and 641,922 are referred to.
Patent GB-1157641-A (GB)
Title: Digitizer with Long Contacts
Inventor: EVANS DAVID SILVESTER
IPC: H03M1/06
Filed: 1965-07-28
Abstract: 1,157,641. Selective signalling. MOORE REED (INDUSTRIAL) Ltd. 15 July, 1966 [28 July, 1965], No. 32250/65. Heading G4H. A shaft 64, Fig. 6, position digitizer includes a 10<SP>-3</SP> stage 61 in which brushes 0/9, 1/8, 2/7, 3/6, 4/5 and A, B, C, C o , C e  and COM, Fig. 5, are moved over stationary conductive segments 53, 54, 55, and 10<SP>-2</SP> and 10-1 stages 62, 63 in which coded scales (e.g. as in Fig. 7, not shown, or as in Specification 1,135,204, which is referred to) are moved past stationary brushes, the arrangement being such that each stage produces a " choosing signal " which selects which brushes in the next higher stage are to be operative. The lowest denominational stage 61, Fig. 6, includes two brushes A, B, Fig. 5, whose outputs when suitably combined (Fig. 2, not shown) produce inverse signals a, b, Fig. 3a, which are used to energize the C e  and C 0  brushes respectively, Fig. 5, so that each numbered brush (e.g. 0/9) produces a signal when in a position corresponding to either of its numbers, the ambiguity being resolved by reference to brush C.
Patent GB-1402532-A (GB)
Title: Pressure regulating device
IPC: F04F1/06
Filed: 1971-07-09
Abstract: 1402532 Crop spraying D C TISSINGTON 6 July 1972 [9 July 1971] 32376/71 Heading AID [Also in Divisions B2 Fl and F2] In a pressure reducer 40 intended to make the air in a pneumatic tyre, available at a reduced pressure for use e.g. in a paint or crop sprayer, a tyre valve opening pin 18 is urged resilently in the valve-opening direction. On increasing the compression of spring 14, by turning nut 12, the pressure of the air available at the outlet 20 is increased. Plastics bottle 42 may be pressurised via a tube 41 and its liquid contents may be sprayed from holes 44 in a tube 43.
Patent GB-174250-A (GB)
Title: Improvements in spreaders for trawl nets
IPC: A01K73/045
Filed: 1920-11-17
Abstract: 174,250. Waldie, A., Robb, W., and Robb, A. Nov. 17, 1920. Trawling-gear. - Otterboards consist of a steel, wrought iron, or other metal plates provided with longitudinal corrugations or with longitudinal metal strengthening-bars or with both. In one form, a metal plate A is provided with corrugations a, which may extend almost from end to end of the plate or may be broken to form staggered rows. Bent metal bars B, C are secured by bolts b and nuts c to the top, front, and back edges of the front and back of the plate respectively. A metal shoe D and a bar E are secured by bolts d and nuts e to the bottom of the plate. Vertical bars F, F<1> are bolted to the back of the plate, and eyes f, f<1> are bolted to the front of the plate and to the bars F, F<1> to take members G, G<l> of a towing-bracket or the shackles of chains for connecting to a towing-warp. In a second form, the plate is provided with longitudinal metal bars of semicircular cross-section instead of corrugations.
Patent GB-1473165-A (GB)
IPC: G03C1/72
Filed: 1974-07-22
Abstract: 1473165 Photochromic material AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 22 July 1974 [3 Aug 1973]  32397/74 Heading G2C A photo-sensitive layer comprises (a) at least one heterocyclic photochromic spiro-pyrane which can exist in two forms and is selectively converted from one form to another on irradiation according to the scheme wherein R 3  is methyl, phenylthio, phenyl, chloro, bromo, methoxy, hydroxy, naphthyl, 4-chlorophenyl, 4-bromophenyl, 4-hydroxyphenyl or 4-methoxyphenyl; R' 3  is methyl, isopropyl, n-hexyl, benzyl or phenylethyl; R 6  is nitro; R' 6  is hydrogen, or methylthio; R 8  is methoxy; and X is thio, seleno, imido, oxo, aza or dialkylcarbo; and # 1  and # 2  are wavelengths in the ultraviolet and visible light ranges respectively, (b) at least one nitrogencontaining heterocyclic thioether substituted in the α-position to the ring carbon atom of the following Formula: alkylene, alkylidene or when taken together with the N atom and C atom is a benzothiazole, benzoxazole, N-alkyl-imidazole or -thiazole ring and R 1 , R 2  amd R' 2  are alkyl or acylalkyl groups, the open form of the spiropyrane being capable of acting as a catalyst in the conversion of the thioether to a thione which takes place at temperatures of at least 100‹C in accordance with the reaction:- and (c) at least one reagent for forming a visible image selected from (i) at least one metal salt which is a behenate, resinate, naphthenate, benzoate or steorate of silver, cadmium, calcium, copper, cobalt, tin, manganese, magnesium, nickel, lead or zinc, (ii) at least one compound selected from zinc, cobalt or nickel halide and zinc or cobalt thiocyanate. The layer may further contain a semiconducting metal oxide selected from titanium oxide (which may have been doped with copper) and zinc oxide (which may have been doped with nickel and/or cerium). A cobalt, copper or nickel salt which fixes the spiropyrane in the open form may also be present. The visible stable image is formed by different reactions: (1) reduction, by the thione produced, of the metal carboxylate(s) or (2) formation of a complex of the thione with the zinc, cobalt or nickel halide or the zinc or cobalt thiocyanate.
Patent GB-449786-A (GB)
Title: Improvements in felt hat body felting and/or dyeing machines
IPC: A42C1/02
Filed: 1935-11-23
Abstract: <PICT:0449786/IV/1> Relates to hat felting or dyeing machines of the kind described in Specifications 680/86, [Class 42], and 19900/10, [Class 63]; and consists in so constructing the bumpers d and walls of the treating chambers a that instead of the hat bodies being merely pounded as the bumpers oscillate, the bodies follow the curvature of the chamber back as the bumpers descend and fall into the paths of the bumpers as these ascend, the bodies thus being circulated and treated more thoroughly and evenly.  To this end, the part of floor of the chamber over which the bumper slides has a curvature of larger radius than heretofore and the general slope of this part of the floor is less steep.  The wall b of the chamber has a lower portion of relatively small radius, and an upper portion of larger radius and extending forwardly towards the bumpers.  The bumpers are relatively thin.  When the apparatus is used for dyeing, the parts contacting with the dye may be faced with rustless steel.
Patent GB-1306339-A (GB)
IPC: C08G69/26
Filed: 1971-07-12
Abstract: 1306339 Polyamides BAYER AG 12 July 1971 [11 July 1970 25 May 1971] 32516/71 Heading C3R  A polyamide comprises 5-100% mole units (I) and 0-95% mole units (III) wherein 40-70% of the cyclohexane rings in each of (I) and (III) are trans-, and R<SP>1</SP> is -(CH 2 ) 2 -CH(C 2 H 5 )-(CH 2 ) 7 -, and R<SP>2</SP> is a C 4-14  divalent radical. The polyamide is transparent and thermoplastic, and has relative solution viscosity 1À5. R<SP>2</SP> may be, e.g., or m- or p-phenylene, or mixture thereof. The polyamide may be made by polycondensing the appropriate diamines and dicarboxylic acid(s) or derivative thereof.  Use.-Mouldings, fibres, films.
Patent GB-245756-A (GB)
Title: Speed reducing device
IPC: F16H13/06
Filed: 1925-12-24
Abstract: 245,756. Gabrio, C. Jan. 6, 1925, [Conven'tion date]. Friction gearing comprises elastic planetary rollers G connecting a fluted surface on a shaft A to an internal friction surface on a drum element C. The rollers G are composed entirely of elastic material and are carried in a frame P fast to a shaft B. With the drum C fixed, a reduced speed may be imparted to the shaft B from the shaft A. With the frame P fixed, the drum C may be driven as a pulley. Trains may be used in series to multiply the effect.
Patent GB-288356-A (GB)
Title: Improvements relating to shuttering
IPC: E04G11/14
Filed: 1926-12-24
Abstract: 288,356. Cleburne, C. L. Dec. 24, 1926. Moulding walls in situ.-Shuttering for use in erecting concrete buildings comprises flanged metal uprights and shutters, the uprights 4 being provided with central channels 6 for the reception of bolt heads and the shutters being provided with projecting end lugs 3 adapted to bE clamped between the flanges of the uprights and bent portions 9 of metal clips 7 which are carried by the bolts. The clips are also provided with projecting lugs to align with the edges of the abutting flanges of the shutters. The flanges of the shutters are strengthened by doubling the metal back on itself. The shapes of the uprights and the clips are made suitable to the form of wall it is desired to construct and to the angles at which the walls meet.
Patent GB-409429-A (GB)
Title: Interlinked electric switches for wireless receivers
IPC: H03J5/32
Filed: 1932-11-18
Abstract: 409,429. Keyboard switches for wireless apparatus. SHERMAN, W. M., Woodville, Osborne Road, Brimsdown, Middlesex, Nov. 18, 1932, No. 32673. [Class 38 (v).] A number of electric switches for controlling pre-calibrated tuning circuits of wireless apparatus are interlinked by means of a flexible band l so that only one switch can be operated at a time. In the form shown, each switch comprises a rectilinearly-movable shaft carrying a number of conducting sleeves f separated by insulating sleeves e. The conducting portions f are in engagement with the metal shaft on which they are mounted and which forms one pole of the circuit and they are adapted to engage fixed U-shaped contacts a connected to the tuning circuits. The end switch controls the filament circuits of the valves. The flexible band l passes through holes in the switch shafts and round bearings r. The condensers of the wireless set may be mounted below the board d carrying the switches.
Patent GB-1003196-A (GB)
Title: Clutch control means
IPC: F16D25/12
Filed: 1961-09-19
Abstract: 1,003,196. Clutch and change-speed control. BORG-WARNER CORPORATION. Sept. 19, 1961 [Aug. 2, 1961], No. 32680/64. Divided out of 1,003,195. Drawings to Specification. Headings F2D and F2L. The description is the same as that of Specification 1,003,195, but the claims are directed towards the feature of a main clutch control valve itself controlled by an electromagnetically-operated valve actuated during ratio shift to disengage the clutch. Specification 1,003,197 also is referred to.