baber/WOPTO huggingface dataset:
Patent GB-246230-A (GB)
Title: Improvements in connection with automatic sprinkler installations for fire-extinguishing
IPC: A62C35/64
Filed: 1924-10-30
Abstract: 246,230. Vigilant Sprinklers, Ltd., and Hitchcock, B. C. R. Oct. 30, 1924. Sprinklers, automatic.-A dry pipe sprinkler installation is provided with a water-controlling valve which combines the functions of a differential and an equilibrium valve. The valve casing A includes an air chamber F communicating with the dry-pipe system and a water chamber G communicating with the water main B, which is covered by a back-pressure valve C which also controls a pipe D to an alarm. Mounted on a spindle H is a double valve of which the upper part E separates the chambers F and G. The lower part encloses by means of a flexible diaphragm P a chamber p<1> in communication with the air chamber F by means of grooves h<1> in a guide slidable in the spindle H, and closes a chamber N in communication with the atmosphere. A chamber j<1> in communication with the water-chamber G is separated from the air-chamber F by a valve J on the upper end of the spindle H. Water can pass to the chamber N by grooves h<2> but is checked by air pressure in the chamber p<1> acting on a valve p<2>. The upward pressure on the valve E is balanced by downward pressure on the valve closing the chamber N. When the air pressure is relieved in the dry-pipe system air escapes from the chamber p<1> allowing water to pass the valve p<2> and fill the chamber N, balancing the downward pressure of water on the valve. The valve E will then lift against the pressure of the air and the water on the valve J, allowing water to pass to the sprinkler system. A pistonvalve is arranged in a suitable casing for draining water from the air chamber F, and this casing communicates with a second casing containing a double-headed valve and communicating with the chamber N These valves are so arranged as to close when the valve E is open and the chambers N and F are full of water.
Patent GB-645736-A (GB)
Title: Improvement in preparation of propylenediamine
Filed: 1948-10-05
Abstract: 1,2-Propanediamine (propylenediamine) is obtained by reacting 1-aminopropanol-2 with ammonia in the presence of a hydrogenation catalyst.  The reaction is preferably effected at between 125 DEG and 250 DEG  C., and especially at 170 DEG  to 200 DEG  C., and the preferred pressure range is from 400 to 2000 pounds per square inch. Specified hydrogenation catalysts are nickel, cobalt, copper chromite, and especially finely-divided nickel or cobalt prepared by dissolving other metals out of their alloys with nickel or cobalt. The reaction may be carried out in the presence of hydrogen which may be admitted to the reactor to an initial pressure of 250 to 600 lbs. per square inch at room temperature, but on heating the final pressure may be allowed to reach 1000 to 2000 lbs. per square inch. In examples: (1) 1-aminopropanol-2, anhydrous ammonia and Raney nickel are heated under hydrogen pressure in a rocking autoclave at 180 DEG  C. for 5 1/2 hours. The propylenediamine is separated by releasing the pressure and distilling the products.  Some 2,5-dimethyl piperazine is also formed; (2) the procedure of (1) is repeated except that the mixture is heated for about eight hours at 185 DEG  C.; (3) monoisopropanolamine, ammonia and Raney nickel are heated at 174 DEG  C. for about five hours, the maximum pressure developed being 675 lbs. per square inch.  The propylene diamine is separated by distillation.  In a comparative example, a mixture of 1,2-propylene glycol, anhydrous ammonia and Raney nickel is heated at 180 DEG  C. for 6.5 hours under an initial hydrogen pressure of 400 lbs. per square inch.  On releasing the pressure and distilling a low yield of 2-amino-propanol-1 is obtained.
Patent GB-320208-A (GB)
Title: Improvements in cylinders of internal combustion engines
IPC: F02B19/14
Filed: 1928-09-11
Abstract: 320,208. Seeley, F. G. Sept. 11, 1928. Cylinders receiving liquid f u e I. - The combustion chamber of a Diesel engine comprises a cylindrical portion 4 which has an axially arranged fuel valve 8 and a small cylindrical passage 20 to the cylinder. By providing a second passage 20, two pistons may be acted on, in parallel or oppooed cylinders, by the same impulse. A twostroke-cycle engine is shown, but in a four-stroke-cycle engine inlet and exhaust valves are provided at 9, 10, at which points starting air and pressure relief valves or a starting igniter may also be provided. The cylinders are mounted on flanges 5, which may be independent of the cylinder barrels; the cooling water circulates by passages 6, 7 through the head jackets, which are closed by plates 12 and stuffing box joints 13.
Patent GB-406942-A (GB)
Title: Contractible spool
IPC: B65H75/24
Filed: 1933-09-21
Abstract: <PICT:0406942/IV/1> A spool for the liquid treatment of artificial silk, adapted to contract upon yarn shrinkage is formed of an endless wire a which is formed into a series of loops parallel to the spool axis. The ends of the loops a may be bent outwards so as to form flange-like projections.  An elastic sleeve b may be provided to protect the threads; the sleeve may be perforated as at c at those portions covered by the thread to facilitate liquid treatment thereof.
Patent GB-930484-A (GB)
Title: Improvements in or relating to electric control systems
IPC: H05B37/02
Filed: 1959-07-30
Abstract: 930,484. Switching systems for consumption apparatus. J. P. WOODNUTT. July 22, 1960 [July 30, 1959], No. 26127/59. Class 38 (4). A switching system for at least two separate loads comprises electrically operable switches for connecting the loads to a supply, the electrically operable switches being operated by means of manually operable switches in such a manner that momentary operation of any manually operated switch will cause its associated electrically operable switch to operate to connect the associated load to the supply or to disconnect it therefrom whilst prolonged operation of any manually operated switch will cause all the electrically operable switches to operate to connect all the loads to the supply or to disconnect them therefrom. Two separate loadswhich may be lamps L1, L2, are connected to an alternating current supply M1, M2 by separate electromagnet relays RF situated in separate control units U1, U2 each relay having a pick-up winding RFa and a drop-out winding RFb. Momentary operation of a manually operable switch-say a switch S1-to the " ON "  position energizes the pick-up winding RFa in control unit U1 from a direct-current supply DC +, DC- whereby contact RF1 closes to energize the lamp L1. Momentary operation of the switch S1 to the " OFF " position energizes the drop-out winding RFb to open contact RF1 to de-energize the lamp L1. A delay unit W is interconnected with the control units U1, U2 having a relay the winding RD of which is energized from the D.C. supply to open contacts RD1, RD2. Prolonged operation of either switch S1 or S2 to the " ON " position will cause energization of a relay winding RC by way of the switch S1 or S2, rectifiers D11 and D8. Contact RC1 is thereby opened but relay RD remains energized whilst a capacitor C1 charges, say for a period of two seconds, after which relay RD drops out to close contacts RD1, RD2. Pick-up windings RFa in both units U1, U2 are then energized by way of switch S1 or S2, rectifier D11, contacts RD1 and rectifiers D13 whereupon all the lamps are energized. Similar operation of the switches to the " OFF " position will energize the drop-out windings over contacts RD2 to de-energize the lamps. Various other embodiments are described wherein two position push button switches are employed as switches S1 S2 or wherein there is used a combination of three position and two position switches. The loads may comprise heating or ventilating systems in buildings, ships or aircraft and the electrically operable relays may be of an electronic type.
Patent GB-192733-A (GB)
Title: Improvements in or relating to time stamps
IPC: G07C1/06
Filed: 1921-10-03
Abstract: 192,733. Thompson, R. H. Oct. 3, 1921. Date and time printing.-In a time stamp consisting of an anvil, a printing dial, and clock driving-mechanism therefor mounted upon a common base and arranged so that the upper face of paper &c. supported on the anvil is printed on, the clock and anvil are placed at opposite ends of the base to minimize, shock to the clock during printing. Formed in one with the base 10 is an arvil 11 and a clock-containing casing 12 to which is pivotally secured a spring-controlled arm 13 bearing the printing-head 14 provided with a handle 16. Mounted in the printeng-head is a fixed dial 22 bearing hour types, a clock-driven minute hand 26 and an arrow head 24 showing hours, all of which are adapted to print on depression of the handle 16 through a hand-actuated ink ribbon 40. Movement from the clock mechanism to the printing dies is conveyed by means of a universal jointed! shaft 31, 34 bearing at one end a bevel gear 30 and connected at the other to the clock shaft 37 by a pin-and-slot cornection 38, 39. A disc 48 bearing alternate letters A and P adapted, in co-operation with a fixed type M, to print A.M. or P.M., is moved through a single step every twelve hours by a pin 49, carried by the hour die 24, engaging a spring-retracted slide 51 bearing a pawl 55 which engages pins 56 on the disc 48. Handset date-printing rollers 45 are provided. The printing mechanism is supported by a plate 28 secured between the sides of the head 14, and the anvil 11 is provided with a removable rubberpadded platen 57.
Patent GB-782146-A (GB)
Title: Cap for a gas burner
IPC: F23D14/04
Filed: 1955-09-13
Abstract: 782,146. Gas burners. GONSALVES, E. M. J. Sept. 13, 1955 [Oct. 20, 1954], No. 26145/55. Class 75(1) A cap 2 for a gas burner in which the gas vents are formed between the grooved upper rim 3 of the burner and the smooth lower surface of the cap has an overhanging collar 4 through at least half of its circumference closing the vents in that part; or, in a cap for a gas burner in which the gas vents are formed between the smooth upper rim of the burner, Fig. 3 (not shown), and grooves provided in a thickened circumferential rim on the lower side of the cap, the grooves are omitted through at least half the circumference of the cap. In the latter cap an overhanging collar is provided on the part of the circumference from which the grooves are omitted to close leakage holes formed between the cap and the burner. The grooves are omitted or the collar is provided preferably over 7/12 of the circumference of the cap.
Patent GB-1216503-A (GB)
Title: Organic compounds containing fluorine
Inventor: CRITCHLEY JOHN PHILIP
IPC: C07C63/72
Filed: 1967-06-06
Abstract: 1,216,503. Fluorinated aryl compounds. NATIONAL RESEARCH DEVELOPMENT CORP. 6 Sept., 1968 [6 June, 1967], No. 26157/67. Heading C2C. The invention comprises a process for the manufacture of compounds of the formula ArCX 2 RCX 2 Ar<SP>1</SP>, wherein Ar and Ar<SP>1</SP> denote aromatic nuclei, R denotes an alkylene group which is at least semi-fluorinated and X denotes chlorine or bromine, from compounds of the formula ArCORCOAr<SP>1</SP>. The process consists in heating the starting materials to a temperature of at least 180‹ C. for a period of at least about 50 hours with phosphorus pentachloride or pentabromide, phosphorus trichloride or tribromide or a mixture of phosphorus trichloride or tribromide with chlorine or bromine. An example is given of the conversion of 1,3-dibenzoylhexafluoropropane into 1,5- diphenyl - 1,1,5,5 - tetrachlorohexafluoropentane. The product may be converted into 1,5 - diphenyldecafluoropentane by heating with antimony trifluoride in the presence of antimony pentachloride as catalyst. Starting materials of the second formula above are obtainable by a Friedel-Crafts reaction between an aromatic compound and a compound of the formula XCORCOX, where X is chlorine or bromine. The example describes the preparation of 1,3-dibenzoylhexafluoropropane from benzene and perfluoroglutaryl dichloride.
Patent GB-1391465-A (GB)
Title: Cooking utensil
IPC: B01F7/00
Filed: 1972-06-05
Abstract: 1391465 Cooking vessels FKUPPERSBUSCH & SOHNE A G 5 June 1972 [9 June 1971 16 Oct 1971 and 12 Jan 1972] 26173/72 Heading A4D [ Also in Division B 1] A cooking utensil has a rotatable bottom scraper 5 and a heating element 4. The scraper has acute and obtuse bends 7,8 which have a stirring action. It may be of stainless spring steel and be adjustably mounted on an arm (10) which may be supported on the container bottom by rollers (18) or slipper blocks (21), see Figs.4-10 (not shown). The ends of the scraper blade may be bevelled, Figs.11 and 12 (not shown) and it may be mounted in the arm in a manner permitting longitudinal thermal expansion.
Patent GB-1216229-A (GB)
Title: Improvements in or relating to water-bearing explosives
IPC: C06B47/14
Filed: 1968-05-31
Abstract: 1,216,229. Explosive compositions. E.I. DU PONT DE NEMOURS & CO. 31 May, 1968 [2 June, 1967; .25 Jan., 1968], No. 26233/68. Heading C1D. A slurry explosive composition comprises an oxidizing salt, a fuel and water, and includes a sensitizer of oxygen balance more positive than - 150% and comprising a salt formed from an inorganic oxidizing acid and an acyclic nitrogen base and/or a phenylic amine; the nitrogen base should have no more than 2 hydrogen atoms bonded to the or each basic nitrogen atom and up to 3 carbon atoms per basic nitrogen atom. Sensitizing salts specified are hydrazine nitrate, dinitrate and perchlorate, monomethylamine nitrate, chlorate and perchlorate, ethylenediamine dinitrate and diperchlorate, nitrates of dimethylamine, trimethylamine, ethylamine, propylamine, guanidine and urea, aniline nitrate, chlorate and perchlorate, p-chloroaniline nitrate, and phenylene diamine dinitrate; cyclohexylamine nitrate and diethylamine dinitrate may be used in mixture with other salts. The oxidizing salt may be ammonium, alkali metal or alkaline earth metal nitrate or perchlorate. Sulphur, carbon, vegetable products, Al, Al-Mg, Fe, ferrosilicon, ferrophosphorus, TNT, PETN, RDX, HMX, and smokeless powder may be present as fuels and auxiliary sensitizers. As a thickening agent, guar gum may be added, together with potassium dichromate and potassium antimony tartrate for cross-linking; polyacrylamide may also be included. The composition may also include a small amount of a fatty alcohol sulphate, many of which are specified, to improve sensitivity at low temperature. Other ingredients referred to are fluidizing agents and buffering agents, e.g. fumaric acid. In examples, the following ingredients are used in addition to those specified above: sodium nitrate, stearic acid, coal, formamide, refined mineral oil, bagasse pith, sodium lauryl sulphate, and phenolformaldehyde hollow particles to trap air bubbles.
Patent GB-650358-A (GB)
Title: Film-forming copolyesters and films thereof
IPC: C08G63/18
Filed: 1948-10-08
Abstract: In making copolyesters of ethylene glycol and terephthalic acid and adipic or sebacic acid by known methods, the molecular proportion of terephthalic acid to adipic or sebacic acid is 1 to 2.4 : 1.  The reaction may be continued until the molecular weight of the copolyester is at least 10,000, or a copolyester of molecular weight less than 10,000 may be reacted with an organic polyisocyanate to give a copolyester of molecular weight of 10,000 or above, the isocyanates specified being ethylene-, trimethylene-, tetramethylene-, hexamethylene-, decamethylene-, m-phenylene-, diphenyl-4 : 41-, diphenylmethane-4 : 41- and naphthalene di-isocyanates, and benzene-1 : 3 : 5-, toluene-2 : 4 : 6-, ethylbenzene-2 : 4 : 6- and monochlorbenzene-2 : 4 : 6-tri-isocyanates.  The reaction with the isocyanate may be effected at normal or elevated temperature, with or without diluents, and when using suitable isocyanates by allowing the vapour thereof to contact the polyester.  In examples ethylene glycol is separately reacted with dimethylterephthalate (in presence of litharge) and sebacic or adipic acid, and the residues therefrom are heated together in an atmosphere of nitrogen under reduced pressure.  The copolyesters may be formed into films by extrusion of melts through a linear orifice on to moving or stationary surfaces, or from solutions in solvents, such as chloroform, ethylene dichloride, and cyclohexane or mixtures thereof, by allowing the solvent to evaporate from a thin layer of the solution, e.g. on a glass plate, a second glass plate being placed about 1 cm. above the surface of the solution to ensure slow evaporation of the solvent at room temperature.  The copolyesters may be formed into shaped articles, or by melt or evaporative spinning methods into fibres or yarns.
Patent GB-911497-A (GB)
Title: Improvements in or relating to cabinets
Inventor: BYFORD HARRY ROY
IPC: A47B53/00
Filed: 1959-07-31
Abstract: 911,497. Cabinets. EDGLEYS Ltd. July 22, 1960 [July 31, 1959], No. 26400/59. Class 52 (1). [Also in Group XV] A cabinet door 6 has a series of shelves 8 affixed to its inner side and is rotatable about a horizontal axis so that the shelves are facing out from the cabinet in the open position. A counter-balancing weight 14 slides in guides 11 at the sides of the cabinet and is connected to the bottom of the door webs which pass over a roller 17. The door is held in the open and closed positions by catches 20.
Patent GB-171826-A (GB)
Title: An improved driving gear for the drawing-off roller of combing machines of the heilmann type
IPC: D01G19/26
Filed: 1920-09-15
Abstract: 171,826. Helmbold, P. A. Sept. 15, 1920. Combing-machines.-The driving arrangement for the drawing-off roller of a combing-machineof the Heilmann type comprises gear-wheels k, r mounted loosely on an oscillating shaft p and actuated through ratchets h, m to give the faster and longer forward movement and the slower backward movement. The shaft p is oscillated by a crank e driven from the comb-shaft a. The pawl i is carried by the gear k and engages the ratchet h to give the forward movement. The pawl n is carried by a disc q on the shaft and engages the ratchet m to give the backward movement. The pawl n is held out of gear during the forward movement by a spring bowl o engaging a tail n<1> on the pawl. The connecting-link f is in two parts pivoted together so that when the crank-pin w is rising there is lost motion to give a stationary period in the movements of the drawing-off roller.
Patent GB-1338676-A (GB)
Title: On-the fly printer
IPC: B41J1/20
Filed: 1971-04-19
Abstract: 1338676 Selective printing HONEYWELL INFORMATION SYSTEMS ITALIA SpA 19 April 1971 [7 April 1970] 26534/71 Heading B6F An on-the-fly printer includes type members such as 30, Fig. 10a which are impelled by print hammers such as 31 at an oblique angle to a paper-supporting platen (not shown) so that a type member when impelled towards the platen has a component of velocity V 1 t, Fig. 5, equal and opposite to the velocity of the type carrier with respect to the platen. The type members may be mounted on a type carrier in the form of  a band, bar, chain or wheel. The type members may be struck obliquely as shown in Fig. 10a, or may be mounted on rectangular-section fingers whose major axis xx, Fig. 5 of section is oblique to the plane of movement of the type carrier and struck normally as at I<SP>1</SP>. A type band may be formed of a belt with integral projecting fingers, each twisted near the junction of the finger with the belt (Fig. 11, not shown).
Patent GB-994354-A (GB)
Title: Improvements in or relating to apparatus for dispensing feed and like materials
Filed: 1960-08-05
Abstract: 994,354. Animal feeding appliances. R. B. DAVIES. July 10, 1961 [Aug. 5, 1960], No. 26565/60. Heading A1M. [Also in Divisions B1 and B8] A mixer for animal feeding stuffs, Fig. 2, comprises a hopper 12 having a central vertical screw conveyer 7, and discharging into outlet ducts 11 having closures 13 and flap valves 14 adjustable so that the material may be discharged through ducts 15 into feeding troughs as at 4, or wholly or partly re-cycled through return ducts 16. The mixer runs on rails 3 past a series of pens, the flap valve 14 having operating levers 19, 20 by which it may be opened and closed by pegs 22, 24 outside each pen; the peg 22 is adjustable and has a scale 23 whereby any desired amount may be delivered. In another embodiment, Fig. 3, the conveyer 7 is enclosed in a tube 43 having a succession of apertures throughout its length, through which material may be recycled in the hopper; they may be closed by an outer tube 44 when the mixer may discharge into feeding troughs through ducts 15 as before, or through high-level ducts 46, 47 admission to which is controlled by an apertured sleeve 48 operated by pegs 52. Pegs 38, 39 operate a water supply tap 41 and a delay switch 53 may be actuated by pegs 54 to stop the transport motor at any station and re-start it after a predetermined variable delay. This embodiment has steerable wheels guided by pulleys as at 32 co-operating with a guide cable 31. Means may be provided to reverse the transport motor and stop the conveyer motor at the end of each run. The motor leads may be wound on a spring or weight controlled drum or the machine may be battery operated.
Patent GB-602827-A (GB)
Title: Apparatus for mixing a predetermined quantity of a stored liquid with a flowing liquid
IPC: G05D11/03
Filed: 1945-10-11
Abstract: 602,827. Valve accessories. BOOER, J. R., and BAILEY, K. F. GOODWIN-. Oct. 11, 1945, No. 26585. [Glass 135] [Also in Group II] In apparatus for mixing a predetermined quantity of a concentrated liquid in a storage tank 1, Fig. 1, with a liquid flowing in a duct 10, e.g. an agricultural fertilizer with water, a valve 6 for controlling the flow of the concentrated liquid from the tank through a pipe 4 to the duct is interconnected with a cock 9 so that neither may be opened without the other. The valve 6 has orifices 7, .Fig. 2, of different diameters to vary the flow to the cock 9 interposed between the duct 10 and an outlet duct 2. The valve 6 is provided with a dial 6a, Fig. 3, calibrated to indicate the concentration of the solution, and formed with notches 6b which coact with a projection 11 on the end of the cock spindle so that neither the cock nor the valve may be opened unless the projection engages a selected notch. A byepass pipe 12 may be led from the duct 10 to the top of the tank to maintain a substantially constant pressure therein on the withdrawal of the concentrated liquid, and a floating baffle 17 is fitted in the tank to prevent the two liquids mixing.