baber/WOPTO huggingface dataset:
Patent GB-453050-A (GB)
Title: Signal control arrangements for single line tracks
IPC: B61L23/22
Filed: 1935-02-27
Abstract: 453,050. Railway signalling systems. VEREINIGTE EISENBAHN SIGNAL - WERKE GES., Siemensstadt, Berlin. Feb. 27, 1935, No. 6299. Convention date, March 12, 1934. [Class 105] For traffic in either direction on a single line the signal lever at one end is only effective to clear its signal if the lever for the opposing signal at the other end is in the unoperated position, an axle-counting device is at zero, and a relay for a short entrance track section is energized. Such being the case contacts in a line wire circuit are closed to permit a battery at the far end to energize a coupling magnet for the signal. The track section relay may be replaced by a treadle-shunted relay. The counting-in at the two ends is effected by current of one polarity energizing one rectifier-fed winding of each counting device and the counting-out is effected by current of opposite polarity energizing reverserectifier-fed windings. To clear the signal S<1> a lever contact H<1> is moved to the dotted position whereby a signal relay s<1> is energized from a battery u<3> at the far end which is applied to the line wire L<2> through an indicator F<2> and over contacts H<2>, 23, b<2> of the lever at the far end in the danger position, of a short entrance track section relay 2, and of an axle-counter-operated relay b. When the train enters the short track section k<1> a track relay 1 (energized over a stick contact 12) drops and closes a contact 11 and later the axles inductively actuate a relay 3 to close a contact 31 the corresponding number of times. Thus a positive battery u<2> actuates a winding E<1> through a rectifier 5 and a winding E<2> through a rectifier 7, these windings thereby operating the axle-counting devices at the two ends so that the zero contacts Z<1>, Z<2> are opened and de-energize the relays a, b which open their contacts a<2>, b<2> in the line wire L<2>. When the axle-counting device has so responded, a relay c is picked up over a contact a<1> and thereafter sticks over its contact c<1> and by closing a contact c<2> allows the stick track relay 1 to pick up as soon as the short entrance section k<1> is free of axles. When the train reaches the far end the axle-counting is effected in a similar manner by the relays 2, 9 and contacts 21, 91 but the battery u<4> is negative and therefore the windings A<1>, A<2> of the axle-counting devices are energized. When the same number of axles have been counted out the contacts Z', Z<2> again close so that the relays a, b are again energized and close their contacts a<2>, b<2> in the line wire L<2> in readiness to permit either signal S<1> or S<2> to be cleared after the short-section track relay 2 is picked up. Sealed contacts T<1> ... T<4> permit the signal being cleared in case of breakdown.
Patent GB-111795-A (GB)
Title: An Improved Railway Rail & Chair Plate therefor.
Inventor: BETTS BENJAMIN BURNISON
IPC: E01B13/02
Filed: 1917-05-03
Abstract: 111,795. Betts, B. B. May 3, 1917. Chair plates; rails modified for securing to chairs.-To prevent creeping of railway rails, one edge 8 of the rail flange is corrugated and engages similar corrugations on the inside vertical face of a chair plate 11. The corrugations in the flange are produced by rolling so as not to vary the depth of the flange but only its density. The chair is produced by rolling or pressing and comprises an abutment 13 having a straight inner surface and an abutment 17 having a corrugated sur. face. Spike openings 15 are provided which are partly through the abutments.
Patent GB-1370843-A (GB)
Title: Disc brakes
IPC: F16D55/226
Filed: 1972-02-10
Abstract: 1370843 Pad disc brakes LAMBERT BRAKE CORP 10 Feb 1972 [11 Feb 1971] 6348/72 Heading F2E A disc brake mechanism comprises a housing 4, with two pressed sheet-metal parts in face-toface co-operation, to provide two flanges 12, 14 connected by two flanges 16, 18; brake pads 34, 38 with linings 36, 40 are slidably supported by pins 26, 28 mounted in bosses 20 in the flanges 12, 14 and a rod operated lever 46 is pivotally mounted in an elongated opening between the sheet metal parts to operate the brake pad 34 against springs 42. The pins 26, 28 are held by spring clips in grooves 31 in the pins, and in slots in the flange 12. The housing 4 is fixed to a frame, and the disc 58 is axially slidable on splines on an axle shaft, or the brake is mounted such that the mounting co-operates with the pins 26, 28 for the housing 4 to form a floating caliper.
Patent GB-512422-A (GB)
Title: Improvements in and relating to elastic ropes or cords
IPC: D02G3/32
Filed: 1938-03-01
Abstract: 512,422. Springs. DUNLOP RUBBER CO., Ltd., and JENKINS, H. F. L. March 1, 1938, No. 6372. [Class 108 (iii)] [Also in Group XXV] Elastic ropes or cords of the kind formed from rubber or like strands are obtained by twisting, together, under tension, cut rubber threads or extruded filaments 1 and twisting together, preferably in reverse direction, three of the strands 2 so formed. The threads and/or strands may be coated with adhesive before or after twisting. The elastic rope or cord may be covered with woven fabric or with rubber threads wound with artificial silk, or with an extruded rubber tube or sheath. Strip sheet rubber may be wound on the elastic threads and be vulcanized in position.
Patent GB-1165501-A (GB)
Title: Educational Toy Device for Audibly Reproducing Recorded Teaching Material
IPC: G09B5/06
Filed: 1968-02-08
Abstract: 1,165,501. Recording and playback. MATTEL Inc. 8 Feb., 1968 [9 Feb., 1967; 23 Feb., 1967], No. 6395/68. Heading G5R. An educational toy comprises a plurality of carriers 12, each bearing visual information and a corresponding sound-track and having means 16 for linking two or more carriers together in a chosen sequence, playback apparatus 20, and transport means 24, e.g. a rubber-tyred wheel 114 driven by an electric motor under the control of a switch 120 in the path of the carriers 12, for feeding the carriers through the playback apparatus. Each carrier 12 may carry on its underside a piece of magnetic tape (14, Fig. 7), recording and playback being by means of a microphone 146 and a magnetic head 122, or a plurality of grooved sound-tracks (Figs. 9 to 29) of which a selected one is played back by means of an adjustable stylus assembly connected to a horn. The several sound-tracks may be in different languages and each may consist of a number of similar grooves side-byside to allow for slight misalignment of the playback stylus. One embodiment (Figs. 19 to 29) includes a hopper arrangement for feeding the carriers in sequence. The carrier linking means may be in the shape of an arrow head to indicate the correct direction of travel.
Patent GB-122754-A (GB)
Title: An Arrangement for Connecting (Unequal Sizes of) Pipes and Tubes in One Joint.
Inventor: MILNE JOSEPH SNOWBALL
IPC: F16L23/12
Filed: 1918-04-16
Abstract: 122,754. Milne, J. S. April 16, 1918. Stuffing-box joints; junction pieces.-Plainended pipes of unequal diameter are jointed by a collar or filling piece F having two bores to take the pipes and rubber or other washers compressed in recesses E between the ends of the collar and loose flanges C, H drawn up by bolts D. The pipes may be eccentrically placed as shown, or may be co-axial, and, when used for fluid under pressure, the pipes may have projections X formed by screw studs, adapted to engage, bayonet-joint manner, in grooves in the flanges. The collar may have a sloping projection J entering one of the pipes to give a less abrupt change of internal diameter. The flanges may fit the pipes as shown, or identical flanges may be used, in which case a loose ring is used within one flange to adapt it to the smaller pipe. The joint may be modified to join more than two pipes, for example to join two pipes to a third, by providing a collar F and flanges with the necessary openings.
Patent GB-1371404-A (GB)
Title: Process for the production of sodium carbonate monohydrate from a sodium hydroxide solution formed in the diaphragm process
IPC: C01D7/07
Filed: 1972-02-11
Abstract: 1371404 Sodium carbonate monohydrate CHEMIEBAU DR A ZIEREN GmbH & CO KG 11 Feb 1972 [12 Feb 1971] 6419/72 Heading C1A Sodium carbonate monohydrate is prepared from a NaOH solution, formed in the diaphragm process for the electrolysis of NaCl, by evaporating the solution down to a NaOH concentration of 45-55% by weight, separating the NaCl precipitated, passing a CO2 containing gas into the concentrated solution to form the monohydrate, separating the resulting precipitated monohydrate fron the mother liquor, recycling part of the liquor to the CO2 treatment stage, evaporating down the other part of the mother liquor at a temperature of 50-110 C. to precipitate further monohydrate and separating the precipitant from the residual solution of NaCl. The hydrate may be then calcined to give dense soda. A solution containing 45-55% NaOH and 1% NaCl by weight is supplied via pipe 6 to a stirred CO2 treatment vessel 1. CO2 gas is introduced via pipe 5 forming a suspension of the monohydrate and simultaneously evaporating at a temperature of 70-110 C. 50-85% by weight of the total water content which leaves the vessel via pipe 21. The suspension removed via pipe 7 is separated into the monohydrate and the mother liquor in the centrifuge 2. The mother liquor is recycled via 8 partly to the CO2 treatment vessel and partly to the lowpressure evaporator/crystallizer 25. In the evaporator more monohydrate crystallizes out at a temperature of 50-110 C. and 15-50% by weight of the total water content is removed, aided by additional heat supplied via the stem heated exchanger 26. The monohydrate settles into the lower part of the evaporator 23 and is washed by the mother liquor entering via pipe 8. The monohydrate separated in the evaporator 25 is recycled via pipe 22 to the CO2 treatment vessel. The residual solution containing on average 15-23% by weight NaCl, is withdrawn via pipe 31. The monohydrate separated in the centrifuge 2 may be calcined to give Na2CO3 in the rotary kiln 11 at a temperature of 105- 175 C., the density of the soda being 1À02 gm/c.c.
Patent GB-191648-A (GB)
Title: Improvements in or relating to fittings for metallurgical furnaces
IPC: F27D1/00
Filed: 1922-03-04
Abstract: 191,648. Paschke, M., and Schiegries, E. March 4, 1922. Tuyeres; valves, reversing and like.-Blast tuyeres and hot-blast valves for metallurgical furnaces are made of aluminium or its alloys, a suitable alloy containing 8 per cent copper and 92 per cent aluminium. The surface may be oxidized by dipping in dilute nitric acid or by directing a blast of highly heated air on to it, or it may be covered by plastic material, the chief component of which is clay.
Patent GB-1459522-A (GB)
Title: Azo dyestuffs from aminopyridine coupling components
IPC: C07D213/80
Filed: 1974-02-13
Abstract: 1459522 Nicotinic acid derivatives BAYER AG 13 Feb 1974 [14 Feb 1973] 6534/74 Heading C2C [Also in Division C4] 2,4,6 - Trihydroxy - nicotinic acid ethyl ester is prepared from diethyl malonate and ammonia. Reaction of the product with ammonia, or using excess ammonia in the preparation gives 2,4,6 - trihydroxynicotinic acid amide. 2,4,6 - Trihydroxy - nicotinic acid nitrile is prepared from diethyl malonate, cyanoacetic acid ethyl ester and ammonia. 2,4,6-Trichloronicotinic acid nitrile is prepared from 2,6,4-trihydroxynicotinic nitrile or acid amide and POCl 3 . Hydrolysis in sulphuric acid gives 2,4,6-trichloronicotinic acid amide. 2,4,6-Tri(hydroxyethylamino and methoxyethylamino)nicotinic acid nitrile are prepared by reacting the corresponding chloro compounds with the appropriate amine. 2,4,6-Tri(hydroxyethylamino)-nicotinic acid amide or acid #- hydroxyethylamide are prepared from the corresponding trichloro ester or amide and ethanolamine.
Patent GB-1200982-A (GB)
Title: Agricultural spraying machines
Inventor: RITTENHOUSE GLEN GEORGE
IPC: A01M7/00
Filed: 1968-02-09
Abstract: 1,200,982. Agricultural spraying machines. G. G. RITTENHOUSE. 9 Feb., 1968 [13 Feb., 1967], No. 6539/68. Heading AID. [Also in Division B2] An agricultural spraying machine comprises a wheeled frame 10 in the form of an endless loop on which is mounted a cylindrical tank 15, spray nozzles 41 being mounted on a rotatable pipe 33 into which compressed air is fed via loop frame 10 by means of a rotary blower 18 which supplies air to each nozzle in such quantity that each air flow has a velocity greater than 400 f.p.s., liquid being supplied under pressure to nozzles 41 from outlet 49 of tank 15 through pipe 50, valve 52, manifold 53 and pipes 55 under a pressure of 3 to 6 p.s.i., each air flow having atomised spraying liquid entrained in it. The nozzles are designed to give droplets in the size range 0-90 microns and consist of a connector 73 screw threaded to swivel joint 40 and in which an air discharge nozzle 74 is screw threaded and a side entering liquid discharge pipe supported co-axially within the nozzle bore, Fig. 5. Safety control means to stop the spraying when the machine stops include wheel 76 which engages on one of the trailer wheels and hence operates the hydraulic pump 77 which controls the valve 52, Fig. 4. In another embodiment the invention is applied to known spraying machines. In this a large volume, low pressure flow of air generated by fan (91) driven by engine (93) which also drives the compressor (18) and low pressure liquid pump (94) is fed to pipe 33. The liquid is fed into the airstream (90) by nozzles 41 via pipe 50, valve 52 and manifold 53, Fig. 6 (not shown).
Patent GB-1530671-A (GB)
Title: Heat treatment of vitreous sheets
IPC: C03B35/20
Filed: 1976-02-19
Abstract: 1530671 Heat-treating glass sheets BFG GLASSGROUP 19 Feb 1976 [24 Feb 1975] 06668/76 Heading C1M In a method of heat-treating a vertical glass sheet 1 by heating to above the strain point and then cooling, forces f are applied to the sheet which act obliquely on the sheet both downwardly (b) and in both horizontal directions (a). The treatment may be for annealing or tempering, the forces preventing deformation of the sheet. The sheet 1 may be supported by clamping means 2, which are preferably mounted on a trolley 4 running along rail 5. The forces may be applied by gripping means 9 mounted on rigid U-shaped bar 6. The bar 6 may weigh, e.g., 5 kg.
Patent GB-293721-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D1/143
Filed: 1927-03-11
Abstract: 293,721. Berkel, C. F. M. van, and Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen. March 11, 1927. Cutting slices in succession. - A slicing-machine comprises a manuallymovable substance-supporting carriage mounted on a stationary base 1, a rotatable knife 2, an electric or other motor adapted to rotate the knife but not to operate the carriage, and means serving to constrain the carriage so that the substance receives a movement of determinate magnitude relatively to the knife. In the machine shown in Fig. 1, comprising a reciprocating carriage 8, a shaft 10 journaled in the base 1 carries a hand-operated flywheel 11 and is connected through bevel gearing 12, 13 to a vertical shaft 14 carrying a crank 15 which is connected by a rod 16 to the carriage 8, whereby the stroke of the carriage is determined. Alternatively, a handle for pushing and pulling the carriage may be provided on the latter, the shaft 10 being dispensed with and a flywheel being fitted on the shaft 14. As shown in Fig. 3, the carriage 30 is adapted to be oscillated about a pivot 32 by means of a manually-operated flywheel 34 carried on a shaft 33, the latter being connected through bevel gearing 35, 36 to a vertical shaft 37 carrying a crank pin 39 which is connected by a rod 40 to a pin 41 on the carriage. A table 42, is provided with four substance-gripping devices 46, is pivoted centrally on the carriage 30 and can be adjusted so that any one of the devices is brought into operative relationship with the knife, the table being locked to the carriage in the adjusted position by a latch 44 engageable with notches 45 in the table. The hand-driven fly-wheel may be replaced by a hand member on the carriage. Means may be provided for adjusting the throw of the crank. As shown in Fig. 4, a circular carriage 50 having four substance-gripping devices 51 is mounted on a central post 52 and is rotated by a handle 60 on a shaft 59 which is connected through gearing 57, 58 to a shaft 56 carrying a gear wheel 55 meshing with an internally-toothed wheel 54 secured coaxially to the carriage. Feed mechanisms are provided for moving the devices 51 selectively towards the knife.
Patent GB-613141-A (GB)
Title: Variable gain amplifier
IPC: H03G3/22
Filed: 1946-03-05
Abstract: 613,141. Automatic gain control. BENDIX AVIATION CORPORATION. March 5, 1946, No. 6894. Convention date, March 12, 1945. [Class 40 (v)] An amplifier is provided with two gain control means which increase and decrease its gain respectively with increases in input signal level, and the second means are arranged to modify the operation of the first to reduce the effects of high background noise level occurring between periods when the input is due to desired signal energy. In the amplifier described, the pentode amplifier 20 feeds the push-pull output stage 46, 48. The output from stage 20 is also fed to a triode 90 feeding a full-wave rectifier 106 producing a positive bias for the grids of valves 46, 48 across its load resistance 78, which is provided with an adjustable tapping 79 to vary the amount of volume expansion. The output transformer 54 of the push-pull stage has a winding 55 feeding a second fullwave rectifier 85 provided with an adjustable delay bias from resistance 66 connected in series with resistances 64, 68, 70 across the H.T. supply. When the output signal is of sufficient amplitude to overcome this delay bias, a negative bias for the output valves is produced across the load resistance 76 resulting in volume compression of the output signals. At the same time the volume expansion circuit is disabled by the application of the same negative bias to the valve 90.
Patent GB-537589-A (GB)
Title: An improved catalytic alkylation process for the manufacture of saturated hydrocarbons
IPC: C07C2/62
Filed: 1940-04-18
Abstract: 537,589. Hydrocarbons. STANDARD OIL DEVELOPMENT CO. April 18,1940, Nos. 7007 and 7008. Convention dates, June 1, 1939, and Dec. 13, 1939. [Class 2 (iii)] Liquid saturated hydrocarbons are obtained by reacting a mixture containing at least one paraffin hydrocarbon having at least one tertiarv carbon atom in the molecule with olefines in the presence of fluorsulphonic acid as catalyst. The reaction temperature may be between + 150‹ F. and -112‹F. ; at the higher temperatures, sufficient pressure is employed to maintain all the reactants in the liquid phase. The fluorsulphonic acid may be made by the process of Specifications 479,450 and 496,658, [both in Group III], or it may be formed in situ by the addition of sulphur trioxide and hydrogen fluoride to the feed. The process is particularly applicable to the alkylation of isobutane and mixtures containing isobutane, but may be applied to isopentane and higher homologues. As olefines, ethylene, propylene, butylenes, trimethylethylene, pentenes and higher mono-olefines may be used, as well as their polymers ; the reaction mixtures may also contain small amounts of diolefines. The various refinery cuts, particularly the C4 cut, may be used as feed stocks, and the process may be carried out either as a batch or continuous type of operation. In examples the following mixtures are treated : (1) isobutane and butylenes, (2) isopentane and diisobutylene, (3) isobutane and propylene, (4) isobutane and a refinery C4 cut, the isobutane to olefine molar ratio of the mixture being 5: 1, (5) isobutane and diisobutylene, (6) isobutane and a catalytically cracked gasoline containing olefines, and (7) isopentane and propylenes.
Patent GB-706709-A (GB)
Title: Improvements in the extraction of solute from solute-bearing material
IPC: C11B1/10
Filed: 1949-12-23
Abstract: Solute-bearing material such as seeds, animal livers and other oil-containing masses is impregnated with a solvent in amount sufficient only to dilute the solute content of the solute-bearing material without causing bleeding of the impregnated material, and the solvent-diluted solute is then extracted from the material by mechanical pressure.  If desired the solutebearing material may be pulverized before treatment with the solvent.  When more than one extracting stage is necessary, solvent containing solute from a prior stage may be employed, preferably in counter-current.  Alternatively fresh solvent may be used for each stage.  The temperature at which extraction takes place may be substantially atmospheric.  Tests are described on the extraction of palm kernels and undecorticated ground nuts using gasoline as the solvent.  The process is also applicable to the extraction of oil from whale livers.ALSO:Solute-bearing material such as seeds, animal livers and other oil-containing masses is impregnated with a solvent in amount sufficient only to dilute the solute content of the solute-bearing material without causing bleeding of the impregnated material, and the solvent-diluted solute is then extracted from the material by mechanical pressure.  If desired the solute-bearing material may be pulverized before treatment with the solvent.  When more than one extracting stage is necessary, solvent containing solute from a prior stage may be employed, preferably in counter-current. Alternatively fresh solvent may be used for each stage.  The temperature at which extraction takes place may be substantially atmospheric.  Tests are described on the extraction of palm kernels and undecorticated ground nuts using gasoline as the solvent.  The process is also applicable to the extraction of oil from whale livers.
Patent GB-398224-A (GB)
Title: Improvements in or relating to vehicle suspension systems
IPC: B61F5/06
Filed: 1932-03-09
Abstract: 398,224. Rail-vehicle suspension systems. ALLEY, S. E., 20, Iddesleigh House, Caxton Street, London. March 9, 1932, No. 7043. [Class 103 (vi).] In a rail-vehicle suspension system, a longitudinal equalizing lever, such as an inverted laminated spring or a rigid bar, bears at its ends upon the middle portions of the lengths of two levers, one extending forwardly and the other rearwardly from pivots near the pivot of the equalizing lever, and each carrying a wheel axle at one end. When applied to a bogie, oscillation about the bogie pivot is checked by a frictional damping band. In the construction shown in Figs. 1, 2 and 3, an inverted equalizing laminated spring 22 is pivoted at each end of the transverse bogie frame 19, the pivots 36 being of the compressed rubber sleeve type. Each of the levers carrying the wheel axlesconsists of two plates which are spaced apart at their inner ends 14 .. 17 to obtain a wide bearing. These plates are secured to long pivot pins 18 carried by rubber sleeves 21 in tubes 20 secured in the bogie frame 19. The ends of the springs 22 bear upon the levers through rubber discs 23. The pivotal movement of the levers relatively to the bogie frame 19 is limited by a projection 31, Fig. 6, from a cross plate 27 connecting the two parts of each lever, this projection being movable within limits set by the faces 34 on a longitudinal extension 33 from the bogie frame 19. A friction band 49, Figs. 1 and 2, is anchored at its ends through helical springs to the bogie frame 19 and encircles a drum carried by the main frame 47 of the vehicle. The laminated spring may be arranged below the levers. When the spring is replaced by a rigid bar, helical springs may be interposed between the ends of the bars and the levers.