baber/WOPTO huggingface dataset:
Patent GB-783540-A (GB)
Title: Improvements in or relating to apparatus for automatically stopping internal combustion engines
IPC: F15B21/00
Filed: 1954-09-17
Abstract: 783,540. Engine stop-gear. MASCHINENFABRIK AUGSBURG - NURNBERG AKT.- GES. Sept. 17, 1954 [Sept. 18, 1953], No. 27019/54. Class 122 (4). [Also in Group XXIX] Apparatus for automatically stopping an I.C. engine on an excessive speed being reached and/or when lubricating oil pressure falls below a predetermined minimum value, comprises a first control valve 13, Fig. 1a, operable by an overspeed governor 8 and a second control valve 19 subjected to lubricating oil pressure transmitted through a pipe 20, the valves being disposed in series in a duct 6 through which pressure fluid is fed to operate a servomotor 2, Fig. 1, adjusting, e.g. the fuel pump linkage 4. Normally the pressure fluid supply to the servomotor is con - trolled by a pilot valve 3 connected to a speed governor by an adjusting lever 1 to regulate the supply of fuel to the engine in accordance with speed in the usual manner. When the engine speed becomes excessive a rotary, eccentric spring-loaded ring 10 of the safety regulator engages a pin 11 to trip a pawl 12 to permit leftward movement of the control valve 13 under the action of its spring 15 so that a recess 17 in the valve previously connecting a duct 23 with the servomotor supply duct 6 now connects the duct 6 to a discharge port 16 so that pressure fluid beneath the servomotor piston is quickly exhausted and the engine rapidly brought to a stop. Rightward movement of a pull-grip 18 resets the valve in its operative position. To set the valve 19 in its operative position a pull-grip 24 is pulled to engage locking pins 25 in recesses 26. On the engine being started pressure is built up on the left-hand end of the valve whence the pins are disengaged from the recesses and the valve is free to move for any slight variations in lubricating oil pressure, a groove 29 in the valve casing permitting a small leakage of oil to take place at all times. On the oil pressure falling below a predetermined minimum value the valve 19 moves to the left under the action of its spring, oil then being exhausted through an annular groove 30 and a port 31. The supply of pressure fluid through the duct 6 to the servomotor is then interrupted and since it is unnecessary in this case to bring the engine rapidly to rest pressure fluid from beneath the servomotor piston passes slowly to exhaust through a groove 32.
Patent GB-273140-A (GB)
Title: Harmless smoke-producer
IPC: F42B4/00
Filed: 1926-10-28
Abstract: 273,140. Arnold, C. Oct. 28, 1926. Pyrotechnic devices.-A mass of smoke-producing paper, cardboard, &c. is coated with igniting material such as a mixture of gunpowder and phosphorus b, by which it can be ignited. The mass a is hollow, and spark-producing masses d of filings, powdered glass &c, mixed with gunpowder or other igniting material are inserted, to be ignited by the combustion of the tube.
Patent GB-676751-A (GB)
Title: Internal-combustion engines
IPC: F02F3/28
Filed: 1949-10-21
Abstract: 676,751. Cylinders. STANDARD MOTOR CO., Ltd., GRINHAM, E G., and WEBSTER, H. G. July 7, 1950 [Oct. 21, 1949], No. 27051/49. Classes 7(ii) and 7(iii) In an internalcombustion engine of the kind in which the combustion space at the top dead-centre position of the piston is formed almost entirely in the cylinder head, with or without a portion scooped out from the end face of the piston, the topmost piston ring being mounted in a groove which is below the end face of the piston head, and the upper end of the piston 35 and the coacting portion of the cylinder bore 32 being stepped and of less diameter than along the rest of their lengths, the radial clearances provided between these reduced parts are not less than the normal clearances between the main portions of the piston and bore. In one form the invention is applied to a spark-ignition engine with a hemi-spherical combustion space the lower part of which is defined by a flat-topped piston whilst a valve is positioned on each side of the sparking plug located in the cylinder head. In another form, as applied to a compression-ignition engine, a spherical combustion-chamber 26a with a fuel injector 29 therein communicates by a passage 30 with a recess 31 in the piston head. The configuration of the upper part of the cylinder bore is substantially the same as disclosed in Specification 676,740.
Patent GB-875706-A (GB)
Title: Improvements in or relating to rotary duplicating machines
IPC: B41L11/00
Filed: 1959-08-07
Abstract: 875,706. Rotary duplicating machines. RITZERFELD, W., and RITZERFELD, G. Aug. 7, 1959 [Aug. 27, 1958], No. 27087/59. Class 100(2) A method of printing copy sheets from two master sheets 1, 3 having inscriptions of hectographic ink material comprises the steps of passing the master sheet 1 through two slots in the sheet 3 so as to extend under the sheet 3 on one side of each slot and above the sheet between the slots, successively moistening the copy sheets with a solvent for the ink, successively pressing the moistened copy sheets against the master sheets, and, between successive printing steps, feeding the master sheet 1 relatively to the sheet 3 to expose a different portion of the master I between the slots of the sheet 3. As shown, the master sheet 1 carries lines of text 2, Fig. l, while the master sheet 3 carries heading lines 1K, 2K, 3K. One end of the sheet 1 is retained in a winding cylinder 4 by a clamp 5 within a drum 7. A pawl 19 is engaged by a latching lever 20, which can be withdrawn from the path of the pawl 19, to cause the cylinder 4 to advance the master sheet 1, thereby exposing the next line of text 2 through the slots in the master sheet 3. Copy sheets 9 are fed into the line of printing F-G by feed rollers 17, 18 the roller 17 being driven through gear-wheels 15, 16, by a ratchet clutch 14 actuated by a lever 11 rocked by a cam 10. In a modification, Fig. 5 (not shown), the master sheet 1 is secured to a radial lever 27 which is rotated to advance the sheet 1 line-byline by a spiral spring under the control of a ratchet wheel 28 and pawl 19 tripped by a lever 20. In a further modification, Figs. 7 and 8 (not shown) the sheet 1 is advanced by a feed roller 33 driven by a stepping wheel 39 engaged during rotation of the drum 7 by teeth 40 on a member 38.
Patent GB-779271-A (GB)
Title: Improvements in pile hammers
IPC: E02D7/10
Filed: 1954-09-20
Abstract: 779,271. Fluid pressure hammers. BELL, N. G. Sept. 19, 1955 [Sept. 20, 1954], No. 27163/54. Class 122 (3). [Also in Group XXI] In a pile-driving hammer comprising a stationary piston 1 and hollow piston-rod 2 about which a cylinder 3 reciprocates, the rotary valve 6 putting the space 16 into communication with fluid pressure 14 or exhaust 19 is carried on the top of the piston-rod within the crosshead of the stationary cradle 4. The valve is actuated by cams on a cam rod on the cylinder 3. A port 13 in the cylinder passes the top of the piston driving the upstroke at the time that the valve 6 is moved to exhaust. A port 20 prevents air being trapped below the piston and allows discharge of condensate when steam is the pressure fluid. For double-acting operation the port 20 is closed and an additional drainage port 21 is closed by a plunger 22 under steam pressure through duct 23, a spring 24 opening the valve 22 when steam is cut off.
Patent GB-1497388-A (GB)
Title: Fluid filter cartridge
IPC: B01D27/08
Filed: 1976-06-30
Abstract: 1497388 Oil filter FORDMOTOR CO Ltd 30 June 1976 [11 July 1975] 27163/76 Heading B1D A filter cartridge (e.g. for I.C. engine oil) comprising spaced inner 21 and outer 22 perforated walls forming two concentric chambers 23 and 24, end plates 20 and 28 capping the ends of the walls, one of the end plates 28 having a central aperture to provide a passage in communication with inner chamber 23, and a filter medium 24 packing the chamber between the inner and outer walls wherein a plurality of surface deformations 42 in one of the walls, extending in to the filter medium towards the other wall, and deform and compress contiguous filter medium to provide flow paths of higher density than in the uncompressed medium. Rows of deformations may be circular and axially spaced. Each row may be of uniform size but may vary through successive rows, regularly or irregularly. By pass 36 or nor return 19 valves may be fitted. The filter medium may be of mixed cotton and wood fibres.
Patent GB-780036-A (GB)
Title: Apparatus for measuring rotational speed
Inventor: HARRISON SAMUEL MARTIN
IPC: G01P3/48
Filed: 1954-09-20
Abstract: 780,036. Measuring rotational speed electrically. NAPIER & SON, Ltd., D. Aug. 18, 1955 [Sept. 20, 1954], No. 27221/54. Class 40 (1). Apparatus for measuring rotational speed of a shaft comprises an electromagnetic means associated therewith producing signals in phase quadrature which are fed through an amplifier to the X and Y plates of a cathode-ray tube causing the spot to move about an axis at the angular speed of the shaft. A control apparatus is arranged periodically to initiate a cycle com. prising switching in at a predetermined point in the travel of the spot a timing circuit to illuminate the spot for a fixed time interval and to inject a signal into the amplifier causing the spot to move radially outwards during the interval, whereby the length of spiral trace thus produced is a measure of speed. In addition the control apparatus may be arranged to make the interval short, e.g. equivalent to 1 turn of spiral and to illuminate the spot again momentarily after a total time interval of say 10 turns of spiral. The length of spiral gives a rough indication of speed while the position of the momentarily illuminated spot allows an accurate measure of the position of the end of the spiral. For instance, in Fig. 2 the two intervals are in the ratio 10: 1 so that the angular displace of spot J3 from 0 corresponds to 10 times the angular displacement of J1 from line 1 which is not readily measured directly. At a predetermined position of the shaft simultaneous pulses are applied to illuminate the tube and start a timer consisting e.g. of a crystal-controlled oscillator feeding pulse counters adapted to apply a switching-off pulse to the tube when a certain count is reached and to apply a flashing pulse to the tube after a longer interval. This pulse also resets the counter and switching circuits. The screen persistence and the periodicity of the cycle are such that a persistent trace is obtained.
Patent GB-747834-A (GB)
Title: Process for the preparation of substantially pure zirconium or hafnium or alloys thereof
IPC: C25C3/26
Filed: 1953-10-05
Abstract: 747,834. Electrolytic production of zirconium, hafnium, or alloys thereof. NORTON GRINDING WHEEL CO., Ltd. Oct. 5, 1953 [Oct. 4, 1952], No. 27223/53. Drawings to Specification. Class 41. Pure zirconium or hafnium or an alloy thereof is produced by electrolytic deposition in a cell containing one or more fused halides, preferably chlorides, of lithium, sodium, potassium, magnesium, calcium, and aluminium, and the carbide of the metal or metals to be deposited isolated from the cathode, e.g. as the anode. The method of operation and the cell used are identical with those described in Specification 744,396 for the production of pure titanium.
Patent GB-470219-A (GB)
Title: Device for the dust free shaking out of mops and other similar kinds of brooms
IPC: A47L13/502
Filed: 1936-10-07
Abstract: 470,219. Cleaning mops. SCHULTZE, (nÚe LIEHR), M. Oct. 7, 1936, No. 27231. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 23, 1937.] [Class 19] A device for shaking out mops 6, Fig. 1, consists of a container 1, a lid 5, a rod 8 carrying a support 3 for the mop and a spiral spring 2. The device is characterized in that the member 8 is straight ; in line with the axis of the handle 7, and passes through a guide-bar 4 secured to the container. The lid 5 is divided diametrically and has a recess on each side of the dividing line for the passage of the mop handle. In a modification, Fig. 2, the support 3 is rigidly secured to a round rod 8 and has limbs 9 supported by spiral springs 2 attached to the sides of the container. In this form, when the lower part of the container is filled with water the springs 2 are not immersed. The above devices can be operated with one hand only and it is not necessary to lay the mop on the floor, thus saving time.
Patent GB-680077-A (GB)
Title: Improvements in or relating to apparatus for projecting loose materials in the form of a stream
IPC: E21F15/06
Filed: 1950-11-07
Abstract: 680,077. Material impellers. MARKHAM & CO., Ltd., and SPRAGG, H. Nov. 7, 1950. No. 27232/50. Class 78 (i). Fig. 1. Goaf is flung into the gob 27 behind shuttering 28 by endless belt 10, the material being fed by endless belt 23 over table 22 furnished with stationary plough 24 and the plough feeding the material from the belt 23 to the belt 10. The belt 10 passes over rollers 11, 12, 13, 14 of which roller 11 is driven from the motor shown and is shaped into a concave hollow 15 by passing around pairs of discs 16, 17 and 18. Fig. 3. The inclination of belt 10 at its "outlet" end is adjusted by adjusting roller 12, the roller being carried by arms 45 fixed to shaft 46 on which roller 13 rotates freely, and the shaft 46 being fixed to crank 47 securable by clamp 52 along bar 53 so that rotation of crank 47 rotatably displaces roller 12. Figs. 6, 7. The left and right vertical supporting brackets 49 and 50 carry the rollers and the discs between them, the clamp 48 carrying roller 12, platforms 58 (on said brackets) carrying holder elements 66 which each carry three discs 16, 17, 18, Fig. 1, and brackets 54, 57 carrying roller 11. Bracket 49 is secured to the framework by fixed foot 52 and the bracket 50 is secured to the framework by detachable foot 55, the latter permitting removal of the belt 10. Figs. 8, 9. Co-operating with each platform 58 of a supporting bracket 49 or 50 is a holder element 66 which carries stub shafts 60, 69, 61 on which are fixed respectively the discs 16, 17, 18, Fig. 1, the stub shafts being displaced relatively to one another in position.
Patent GB-1504683-A (GB)
Title: Pharmaceutical compositions containing substituted pyrimido-quinoline derivatives
IPC: C07D215/38
Filed: 1976-06-30
Abstract: 1504683 1 - Oxo - 1 H - 6 - pyridino - pyrimido[1,2-a]quinoline- 2 - carboxylic acid esters and salts thereof PFIZER Inc 30 June 1976 [10 July 1975] 27330/76 Heading C2C Novel compounds of the Formula I wherein R 2  is hydrogen or C 1-4  alkyl, pharmaceutically-acceptable acid addition salts thereof and the pharmaceutically-acceptable cationic salts of those compounds where R 2  is hydrogen, may be prepared by reacting a C 1-4  alkyl ester of 1 - oxo - 1H - 6 - chloropyrimido[1,2 - a] quinoline - 2 - carboxylic acid with piperidine, optionally followed by hydrolysis of the ester group, and reesterification to another ester and/ or salt formation. Pharmaceutical compositions of the compound I with the usual excipients are antiulcer agents when administered orally or intraperitoneally.
Patent GB-732637-A (GB)
Title: Improvements in or relating to plate heat exchangers
IPC: F28F3/08
Filed: 1953-10-06
Abstract: 732,637. Plate heat-exchangers. NAAMLOOZE VENNOOTSCHAP MACHINEFABRIEK BOLNES VOORHEEN J. H. VAN CAPPELLEN. Oct. 6, 1953 [Oct. 30, 1952], No. 27365/53. Class 64 (3). Relates to plate heat exchangers comprising a stack of plates each of which is provided with two ports 1, 2 interconnected by channels 5 for one of the heat-exchanging fluids and with two by-pass ports 3, 4 for the passage of the other fluid across the plate to and from the channels of adjacent plates in the usual manner. According to the invention each plate is provided adjacent one edge with a projecting dowel pin 8 and adjacent at least one other edge with a hole 6 which receives the projecting dowel of an adjacent plate. Each plate may have one hole 6 located adjacent the plate edge symmetrically opposite to that in which the dowel is fixed (as shown) or it may have two holes located along the plate edges adjacent to that in which the dowel is fixed. By this arrangement the individual plates are maintained in alignment the stack of plates being bolted together between headers which may be similarly located with respect to the plates by dowel members. Gaskets are preferably interposed between the plates and headers. The gaskets and pins may be made of electricallyinsulating material.
Patent GB-635163-A (GB)
Title: Improvements in or relating to casing heads for oil and like wells
IPC: E21B33/04
Filed: 1947-10-13
Abstract: 635,163. Well casing heads. BRITISH OILFIELD EQUIPMENT CO., Ltd., and MATHESON, N. Oct. 13, 1947, Nos. 27368/47 and 8323/48. [Class 85] In the spool 1 of a well casing head is positioned a tubing hanger formed in two portions 2, 3 couplec together by a screw thread 6, each portion in addition being oppositely threaded tc receive a drill pipe 4 The hanger is posi tively locked to the inside of the spoo since on screwing por tion 2 into portion 3 oi the hanger a cam shaped recess 7 formec in the portion 2 dis places balls 9, lying in slots 8 formed in the portion 3, to force out serrated slips 10 against the action of springs 13, to engage corresponding serrations 12 formed on the inside of the spool. In a modified form, the balls 9 are forced outwards into a groove formed in the spool, the serrated spring-biassed slips being eliminated.
Patent GB-1009009-A (GB)
Title: Heat-shrinkable organosilicon materials
IPC: C08L83/04
Filed: 1964-07-02
Abstract: A composition, capable of forming heat-shrinkable articles, comprises by weight (1) 100 parts of a diorganopolysiloxane, in which the radicals are selected from methyl, vinyl, phenyl and 3,3,3-trifluoropropyl radicals, at least 50% of the radicals being methyl and not more than 10% being vinyl, and (2) 1 to 100 parts of a polymer of the formula <FORM:1009009/C3/1> in which each R is methyl or phenyl and x is at least 50.  Fillers and extenders, e.g. SiO2 (fume, aerogel and precipitated), TiO2, ZnO, Fe2O3 and MgO, may be added and the compositions may be vulcanized by means of radiation, by heating with organic peroxides, or by exposure to moisture (entailing the use of alkyl silicates and metal carboxylates or acyloxysiloxanes). The composition may be formed into the desired shape and vulcanized and the resulting article is then heated to above the melting point of the silphenylene polymer and expanded or elongated to the desired extent, cooled to below the aforesaid melting point and the expanding or elongation force removed. Examples are given.  Uses.-In making insulating jackets for electrical conductors, and as ablative coatings on cables and other base members.
Patent GB-519539-A (GB)
Title: Improvements in and relating to the manufacture of moulded articles
IPC: C08K3/08
Filed: 1938-09-20
Abstract: 519,539. Plastic compositions. NORTON GRINDING WHEEL CO., Ltd. Sept. 20, 1938, No. 27380. Convention date, Sept. 23, 1937. [Class 70] [Also in Group IV] Moulded articles are prepared comprising finely divided aluminium and not more than 25 per cent. by volume of a natural resin such as shellac. The products, which resemble cast aluminium but are slightly porous, may be used in the. manufacture of household or electrical appliances.
Patent GB-1036292-A (GB)
Title: Sink plug
Inventor: O'BEIRNE RAYMOND BERNARD
IPC: A47K1/14
Filed: 1964-07-02
Abstract: 1,036,292. Plugs. KENWOOD MANUFACTURING (WOKING) Ltd. July 1, 1965 [July 2, 1964], No. 27433/64. Heading A4N. An outer annular part 1 of a sink plug has its central aperture 2 closed by an inner part 8, which supports a spigot 7 carrying a rubber ring 12 slidably movable in a tube 6 attached to the outer part 1 by a spider 5. The inner part 8 is retained in its open position by the frictional forces between the spigot 7, tube 6 and ring 12. The outer part 1 is sealed into a sink plug hole by a rubber ring 3.
Patent GB-805953-A (GB)
Title: Polymerisation of chloroprene
IPC: C08F36/16
Filed: 1956-09-07
Abstract: 2 - Chloro - 1,3 - butadiene is polymerized in the presence of a catalyst prepared by the interaction of (a) an aluminium compound of the formula R2AIX where R represents an alkyl, cycloalkyl or aryl group and X represents hydrogen, halogen or an alkyl, cycloalkyl or aryl group; and (b) a chloride, bromide or iodide of titanium or zirconium.  The compound (a) is preferably an aluminium trialkyl and may be, for example, triethylaluminium, tri-iso butylaluminium, trioctylaluminium, didodecyloctyl aluminium, di - isobutylaluminium hydride, tridodecylaluminiu, diphenylaluminium, bromide, dipropyl-cyclohexylaluminium, di - tolymethylaluminium, tri - (beta - phenylethyl) aluminium, diethylaluminium chloride, di-isobutylaluminium chloride or iodide and di - (beta - cyclohexylpropyl) isobutylaluminium.  Mixtures of such compounds may be used and the mixtures obtained in the preparation of such compounds by treatment of aluminium with alkyl halides and containing compounds such as RAlCl2 may be used.  The compound (b) is preferably a tetra-chloride or iodide but any of the halides or their mixtures may be used.  The compounds are preferably soluble in an inert organic solvent.  The mol. ratio of aluminium to titanium or zirconium may be 0.3 : 1 to 15 : 1.  Suitable solvents for the mixing of the components of the catalyst and for the polymerization are liquid propane, isobutane, n-butane, n-hexane, the isomeric hexanes, cyclohexane, methylcyclopentane, dimethylcyclohexane, dodecane, kerosenes, naphthas especially those which have been hydrogenated to remove olefines, benzene, toluene, ethylbenzene, cumene, decalin, ethylene dichloride, chlorobenzene and ortho-dicholorobenzene. The amount of solvent in the polymerization may be 0.5 to 30 parts by weight per part of polymer produced; the amount of catalyst may be 0.1 to 50 per cent by weight based on the monomer; temperatures of -40 DEG  to 100 DEG  C. may be used and pressures of atmospheric to 50,000 p.s.i.  The polymerization may be stopped by destroying the catalyst with an alkanol or water.  In an example, chloroprene is polymerized in the presence of catalyst, made by adding titanium tetrachloride to triisobutyl aluminium in kerosene, at 28-60 per cent for 3 hours.  The polymer was obtained in 55 per cent yield.
Patent GB-189607-A (GB)
Title: Improvements in and relating to devices for sampling grain in bulk
IPC: G01N1/20
Filed: 1921-10-17
Abstract: 189,607. Bullock, A. B. Oct. 17, 1921. Sampling granular materials.-Grain passing down a shoot F is sampled automatically at regular intervals by a machine operated by the movement of the grain. Two wheels A, B rotate freely side by side on an axle C, the wheel A having vane-like surfaces E and the wheel B having two pockets G upon the periphery. The wheels are connected by gearing comprising a pinion A<1> on the wheel A, an idle wheel D and internal teeth B<1> on the wheel B. As the wheel A is driven by impact of the grain on the surfaces E it rotates the wheel B slowly in the opposite direction, so that samples of grain entering the pockets G are deposited in the casing H and pass from the outlet J to a suitable receptacle.