baber/WOPTO huggingface dataset:
Patent GB-1218115-A (GB)
Title: Improvements in or relating to the oxidation of nitrosyl chloride
IPC: C01B7/03
Filed: 1968-04-01
Abstract: 1,218,115. Oxidation of nitrosyl chloride. OSTEBREICHISCHE STICKSTOFFWERKE A.G. 1 April, 1968 [7 June, 1967; 11 Oct., 1967], No. 15602/68. Heading C1A. Chlorine is obtained from nitrosyl chloride which may contain Cl 2  NO 2 , and H 2 O, by oxidizing the nitrosyl chloride with oxygen, air enriched with oxygen, or air, in a first stage at 300‹ to 400‹ C., cooling the oxidized mixture and allowing the reaction to go to completion in a second stage at 100‹ to 200‹ C., and separating chlorine from the resulting mixture of Cl 2 , NO 2 , and remaining NOCl Preferably, less than the stoichiometric amount of O 2  is used, and the starting gas consists mainly of NOCl pre-heated to 150‹ to 220‹ C., and is brought into contact with a catalyst of, e.g., alumina, an aluminium silicate, a sodium aluminium silicate, or silica gel, at that temperature for at least one second, so that the NOCl dissociates into NO and Cl 2 . The oxygen or gas containing it is admixed with the NOCl gas stream at any desired point before or after the catalyst layer, and the reaction of O 2  with NO raises the gas temperature to 300‹ to 400‹ C., and then on cooling to 100‹ to 200‹ C., the reaction between these two gases goes to completion thus preventing the back-reaction of NO with Cl 2  to re-form nitrosyl chloride. The chlorine is separated by distillation after condensing the product gases.
Patent GB-657949-A (GB)
Title: Flareless tube coupling
IPC: F16L19/10
Filed: 1949-06-13
Abstract: 657,949. Pipe joints. WOODLING, G. V. June 13, 1949, No.15679. [Class 99 (i)] A sealing and securing sleeve 13 driven into a conical socket 17 by a coupling nut 12 has an internal V-shaped annular rib 30 adapted to cut into the pipe 10 when the camming shoulder 40 of the sleeve engages the socket. The sleeve has adjacent the rib 30 an internal recess the wall 35 of which is considerably longer than the wall of the rib. The outer end of the sleeve has slots 27 whereby it is contracted on to the pipe by interaction of conical surfaces 36, 37. The socket has a very slightly tapered bore 18 into which the pipe end is jammed.
Patent GB-1309291-A (GB)
Title: Dispersion strengthened metals and alloys and process for producing  same
IPC: C22C1/05
Filed: 1970-04-02
Abstract: 1309291 Heat-treating oxide-strengthened alloys SHERRITT GORDON MINES Ltd 2 April 1970 [11 July 1969] 15698/70 Headings C7A and C7D Nickel, cobalt, or alloys of these with each other and/or with chromium, that is or are dispersion strengthened with submicron oxide particles and have a substantial proportion of grains less than 30 microns in greatest diameter are hot worked by an amount sufficient to ensure consolidation to full density and then to effect at least 15% reduction, the workpiece being maintained at not more than 150‹ C below its recrystallization temperature at least while carrying out the final 15% reduction; the workpiece is then annealed to promote recrystallization and formation of large equaxed grains. Working is preferably applied directly to the sintered non-dense billet and may consist of a simple rolling operation at 1200‹ C; the temperature of the workpiece may be maintained by sheathing it in mild steel or by using heated tools. Recrystallization annealing is carried out at 1200-1425‹ C, and may be followed by secondary working (e.g. at 1100-1315‹ C) and annealing steps which must be carried out under such conditions that the coarse grain structure is retained. Particular matrix compositions disclosed are 80% NI - 20% Cr, 75% Co - 25% Ni and 55% Co - 25% Ni - 20% Cr, while strengthening may be effected by the presence of a trace up to 30% by volume of one or more oxides of Y, Th, Ca, Mg, Zr, Si, Be, Hf, Al, Ti, U or the rare earth metals.
Patent GB-668475-A (GB)
Title: Improvements in or relating to heat exchange apparatus
IPC: F28D9/00
Filed: 1949-06-14
Abstract: 668,475. Plate heat-exchangers. HUET, A. June 14, 1949 [June 18, 1948], No. 15780/49. Class 64(iii) Relates to heat-exchangers of the kind comprising a group of hollow plates 1, disposed parallel or substantially parallel to each other and spaced apart within a casing 2-6, one fluid flowing over the plates and a second fluid flowing through the plates and the walls of the plates having undulations extending transversely to the flow of the fluids. According to the invention, the undulations in the walls of the hollow plates effect local variations in the crosssectional areas of the undulated flow paths for both of the fluids and thus effect local variations in the pressure of each of the said fluids as well as in the speed of flow. The undulations 22 may be periodic, aperiodic, symmetrical or assymmetrical. In the form shown each plate is provided internally with baffles 13, 14 defining a tortuous fluid path X and constituted by straight depressions formed on each side of the plate and welded together along the line of contact. Readily detachable or hingedly mounted baffles 17, 18 between the plates form a tortuous path Y for the fluid flowing over the plates between inlet and outlet headers 9, 10. Headers 7, 8 connect the fluid flow spaces within the plates. Fluid deflecting vanes 20, 21, Fig. 3, are provided in the inlet headers 7, 9 respectively. The hollow plates each comprise two plates pressed to shape and welded together at their edges except at the location of the headers 7, 8 and the plate walls may be provided with opposed dimples welded together at their points of contact.
Patent GB-671460-A (GB)
Title: Improvements in or relating to operating systems for motor vehicle accessories
IPC: F04C28/06
Filed: 1948-07-26
Abstract: 671,460. Rotary pumps. TRICO PRODUCTS CORPORATION. July 26, 1948 [July 26, 1947], No. 15784/51. Divided out of 671,462 [Group XXVIII]. Class 110(ii) [Also in Group XXXVII] The pump is driven by an electric motor having an electric switch connected in circuit with the motor and having a magnet to attract the switch to its circuit-closing position, and pressure-responsive means for opening the switch against the action of the magnetic force. The pump provides a source of suction which may be used for operating an accessory on a motor vehicle when the manifold suction is insufficient. In the Figure the pump is of the outwardlysliding vane type having an inlet 18 and delivery port 19. The driving motor circuit is connected by wires 21 to a suctionresponsive switch with fixed and movable contacts 24, 25. The space below a plunger 30 leads, by way of a pipe 10, to a source of reduced pressure, e.g. an engine intake manifold. A spring-pressed valve 35 closes a shunt passage 34 when the pump is operating and suction, through the pump inlet 18, is caused in a pipe 10<SP>1</SP> leading to the accessory to be actuated. If, however, the suction pressure in 10 is sufficiently reduced, the plunger 30 is drawn downwards and the connection between the contacts 24, 25 is broken, the pump then stopping. In order to avoid arcing between the contacts 24, 25, there is provided a permanent horseshoe magnet 56 to hold up an arm 26 until the pull by the plunger dominates to snap the contact 25 away from the contact 24.
Patent GB-169220-A (GB)
Title: Improvements in or relating to carburetters for internal-combustion engines
IPC: F02M9/127
Filed: 1920-06-11
Abstract: 169,220. White, J. M., and Wall, A. W. June 11, 1920. Addition to 136,592. Spray carburettors.-In carburettors as described in the parent Specification having a tubular float c and a tubular float chamber a, a tube d is fitted in the chamber and has one or more grooves e forming a fuel conduit or conduits leading to a hole f or to a series of holes. A ring h has a number of various sized orifices i and may be turned to bring one or other of these or;- fices opposite to the hole f to form the fuel jet or jets. A short tube b fitted to the chamber has serrations, which with the similarly shaped bottom d<1> of the tube d form guides for the float. A choke tube is slidable in a tube m formed with mixture outlet ports k, primary air ports n and supplementary air ports !; extensions of the choke tube control all these ports, the choke tube being moved by Bowden mechanism u. The tube m is surrounded by. a pressed or stamped housing p made in two parts clamped together, the upper clamp t serving as a support for the Bowden mechanism. The lower part of the carburettor body may act as a well to receive fuel overflowing from the jet; when the throttle is closed a by-pass remains open through which this fuel is drawn for starting the engine.
Patent GB-398965-A (GB)
Title: Improvements in or relating to rabbit and like snares
IPC: A01M23/34
Filed: 1932-06-04
Abstract: 398,965. Catching animals. TEESDALE, J. H., 4, Raymond Buildings, Gray's Inn, London.-(Sowerby, J. L. ; Wasa, British Columbia, Canada.) June 4, 1932, No. 15817. [Class 5 (i).] A noose trap is provided with means whereby the noose is held against slackening after having been tightened by the struggles of the animal. One end of the noose is, as usual, secured by a cord 2 to a peg fixed in the ground and the other, after passing through an eye 5, is threaded through and fastened to an eyelet 8 which passes loosely through jaws 6, 7 at the ends of a strip of springy metal forming the eye 5. The jaws are bent to form a mouthpiece 11, 12. When an animal caught in the trap exerts tension on the noose the jaws 6, 7 are forced open and the material 1 of the noose passes therebetween ; the pressure of the jaws maintains the noose in its contracted position when the tension is released. A notch may be formed in the wall of the eye 5 in which the material 1 may be bound should it snap where it is attached to the eyelet 8. A knot 13, which is too large to pass through the mouthpiece 11, 12 limits the contraction of the noose.
Patent GB-590069-A (GB)
Title: Improvements in or relating to thermionic valve holders
IPC: H01R33/76
Filed: 1944-08-23
Abstract: 590,069. Holders for discharge tubes. BRITISH MECHANICAL PRODUCTIONS, Ltd., and DEAKIN, S. T. Aug. 23, 1944, No. 16100. [Class 38 (i)] A valve-holder is provided with an insulating barrel formed with openings 2, each housing a contact element comprising a metal strip having a tag portion 8 and a portion doubled back and divided centrally so as to form a U-shaped valve-pin receiving member 10, 11, the sides of which are bowed inwards to provide an extended contact area. When the element is inserted into an opening 2, the tag 8 first enters an aperture 6 and then springs sideways as a notch 13 on the element enters a reduced part 7 of the aperture, locating the element in the barrel. The holder may be secured to the chassis of a wireless set by a sheet metal saddle, Figs. 8, 9 (not shown), having tongues which are forced inwards to engage axial grooves 15, while a flange on the holder rests on the saddle. Alternatively, the holder may be secured as described in Specification 578,391.
Patent GB-318290-A (GB)
Title: Improvements in or relating to cylinder knife skiving and like machines
IPC: C14B1/00
Filed: 1928-06-02
Abstract: 318,290. British United Shoe Machinery Co., Ltd., Woodcock, R. B., and Boothroyd, H. June 2, 1928. Machine cutters, grinding in situ; trueing rotating tools.-In a cylinder knife skiving machine, the knife is formed of a complete unbroken cylinder of metal of 4¢-7 inches in diameter and either or both of the feed device and grinding- wheel is belt driven from a power shaft. A belt 5 is lapped round a driving pulley 4, guide pulleys 6, 7, a spring urged jockey 9, a grinding-wheel pulley 13, and a feed pulley 15. A grinding-wheel 47 a mounted on an arm 48 hinged on a journal 50 with eccentric bushes for adjustment. The wheel is moved towards knife by a handwheel 55 and is retracted by a spring 52. A wheel 56 for trueing the grinding-wheel is mounted on a lever engaged by a bell-crank 57. Actuation of a hand rod 63 swings the bellcrank against the urge of a strong spring 62 to allow a weak spring 59 to engage the trueing wheel with the grinding-wheel. Specifications 17360/01 and 278,769 are referred to.
Patent GB-566412-A (GB)
Title: An improved manufacture of diolefins
IPC: C07C4/00
Filed: 1941-12-15
Abstract: Diolefins are made by subjecting polymers of branched chain olefins or copolymers of tertiary and secondary olefins to temperatures above 800 DEG  F., e.g. 1200-1400 DEG  F., if desired in presence of a catalyst composed of copper gauze, chromic oxide or bauxite.  Thus, tertiary olefins in the C4, C5 and C6 naphthas are extracted by acids, polymerized by contacting with acids or acidic containing agents and then cracked.  Examples give the results of cracking the dimer of trimethylethylene and the trimer of isobutylene.  Mixtures of isobutylene and diolefins are obtained which can be copolymerised with AlCl3 or BF3 to give high molecular weight polymers. Specification 472,553 is referred to.
Patent GB-112768-A (GB)
Title: An Improved Process for Regenerating Oxide of Nickel Catalysers Employed in the Hydrogenation of Fatty Bodies.
IPC: C11C3/12
Filed: 1917-11-05
Abstract: 112,768. Soc. Industrielle de Produits Chimiques. Jan. 16, 1917, [Convention date]. Catalytic agents, treatment of.-Nickel oxides used as catalytic agents in the hydrogenation of cils are regenerated by removing the grease, calcining with limited access of air so as to produce suboxide, or with free access of air to produce the monoxide, all in a known manner, and then washing, drying, and converting into suboxide by a limited dry reduction, for instance, by hydrogen, the operation not being pushed so far as to produce a pyrophoric product. Examples describe the effect of these regenerated catalysts in the treatment of cottonseed oil at 250-260‹ C. Specification 111,840 is referred to.
Patent GB-1347934-A (GB)
Title: Control system for an elastic fluid turbine
IPC: F01D21/02
Filed: 1972-04-07
Abstract: 1347934 Turbine plant TOKYO SHIBAURA ELECTRIC CO Ltd 7 April 1972 [19 April 1971 16176/72 Heading FIT [Also in Division G3] An extraction turbine plant comprising an electric generator 13 driven by high and low pressure turbine stages 11, 12, and admission and interstage valves 15, 16 has a control system which during normal running controls both valves 15, 16 in response to rotational speed of the turbine and pressure of the extracted fluid (e. g. steam), control of admission valve 15 by extraction pressure being interrupted when circuit breakers 19 trip upon loss of generator load. Turbine speed is sensed by two electromagnetic pick-ups 23, 24 whose outputs are applied via detectors 25, 26 and gate 27 to a speed-load controller 30 where the speed signal is compared with a reference value from speed setting device 33. The error signal is limited by a further reference signal from maximum load setting device 34 and is passed through an amplifying circuit 32 to an adder 35 which, during normal operation, also receives a pressure signal from controller 43 via the closed contacts 57b of relay 57. The adder output is amplified at 40 and applied to an electro-mechanical converter 41 driving an hydraulic servo-mechanism 42 which adjusts admission valve 15 to maintain the speed constant. The pressure in extraction line 17 is sensed by detector 29 which transmits a signal to pressure controller 43 where the signal is compared with a reference from pressure setting device 46. The error signal is limited by a further reference from maximum pressure setting device 47 and is passed through amplifier 45 to an inverter, or polarity changer, 48 and thence to adder 49. The latter also receives a speed signal from controller 30 and transmits a signal to adjust interstage valve 16. The system is arranged such that, during normal operation, adjustment of speed does not affect the extraction pressure and vice versa. Should there be a fault in the power system 21 or load 22 of electric generator 13 then main circuit breakers 19 trip causing contacts 19b to close and energize relay 58. The consequential closing of contacts 58a energizes relays 57, 60 to open contacts 57b and close contacts 57a, 60a. Thus the pressure signal from controller 43 is no longer transmitted to adder 35 but is replaced by a zero pressure level signal Po so that admission valve 15 is then operated in response only to the signal from speed controller 30. However the extraction pressure signal is still applied to adder 49 to cause closing of interstage valve 16 and thus prevent turbine overspeed. Relays 57, 58, 60 may be replaced by transistorized circuitry.
Patent GB-742418-A (GB)
Title: Improvements in velocipedes
Inventor: LIEN KNUT MOLLER
IPC: B62K5/00
Filed: 1953-06-12
Abstract: 742,418. Hand driving - mechanism for vehicles. ENNA, Ltd. June 4, 1954 [June 12, 1953], No. 16186/53. Classes 136 (2) and 136 (3). In a velocipede of the type in which one or each end of the main structure is supported upon two laterally-spaced wheels having their respective axes permanently aligned with one another, the wheels 15 are mounted for bodily oscillation in a horizontal plane under the control of a hand wheel 13 which, on angular movement in either direction, first applies a brake to one of of the wheels 15 and thereafter swivels the wheel assembly so that the other wheel travels forward in an arcuate path having its centre at the point of contact of the braked wheel with the ground. The stem 12 of the hand wheel 13 is formed with a hook 32 which is closed around the front axle 14 between lugs 33 on the latter. A two-armed lever 35 is welded to the hook 32 and has its ends 36 formed with sharp edges adapted to bite into resilient tyres on the wheels 15. The stem 12 is mounted in a bearing tube 11 which is enclosed in a wooden shell 29 and passes through the platform 10. The platform is reinforced by a wooden block 30 bolted to a flange 31 on the tube 11. The rear end of the platform is supported on non- swivellable wheels 16, the ends of whose common axle 17 are cleated at 18 to wooden blocks 19 secured to the underside of the platform 10. A valence 25 partially conceals the wheels. The vehicle may have only three running wheels. The hand-wheel 13 may be replaced by a handlebar.
Patent GB-189069-A (GB)
Title: Improvements in four stroke cycle oil engines
IPC: F02M69/00
Filed: 1922-06-12
Abstract: 189,069. Takata, K., and Ritter, P. A. June 12, 1922. Regulating.-An axially sliding fuel-valve cam 14 is adjusted simultaneously with a throttle valve in the air pipe 20; or the lift of the fuel valve may be unaltered, and a pressure-relieving valve in the fuel main adjusted.
Patent GB-515523-A (GB)
Title: Improved machine for moulding concrete blocks and similar concrete articles
IPC: B28B5/08
Filed: 1938-05-31
Abstract: 515,523. Moulding concrete blocks, &c. COPPIN, C. A. May 31, 1938, No. 16220. [Class 87 (ii)] In a rotary machine for moulding concrete blocks, &c. the operations of filling a mould, vibrating the loaded mould, tamping the previously vibrated mould charge, ejection and removal of the moulded article with its pallet, and the substitution of a fresh pallet are carried out simultaneously. As shown, four open-ended mould boxes 11 are secured to the underside of a table 1 rotated step by step from a main shaft 3. The mould boxes are provided with false bottoms 12 provided with rollers 13 adapted to run on a circular track 10 having filler sections adapted to be raised at the filling station A and the ejecting station C. The mould is filled by a hopper the mouth of which is just above the level of the table and is provide'd with inclined scraper blades to remove surplus concrete. During the filling operation, the filler rail section supporting the false bottom carrying the pallet in the mould box is vibrated through lever mechanism operated by oppositely - disposed rollers, on a rotating disc, that make intermittent contact with a lever arm. The mould box with the vibrated charge then passes to a tamping station B, where a tamper 23 fitting into the upper end of the mould box falls repeatedly under gravity until clutch operating parts 25' make contact. The table then rotates and moves the mould box with the tamped charge to the ejecting station C where lever mechanism is operated to raise the filler rail section carrying the false bottom supporting the pallet. The mould box has liners on its walls, and when the false bottom is raised, two opposite liners move upwardly with the moulded block. The block is removed by hand with the pallet and the false bottom together with the movable liners descends. The mould box then moves to the position D, where an operative places a fresh pallet on the false bottom. The operations of the machine are controlled by magnetic clutches which are operated by a rotary switch 9 geared to the driving shaft 3.
Patent GB-705858-A (GB)
Title: Safety attachment for retaining fountain pens and like pocket implements
IPC: B43K23/00
Filed: 1951-07-09
Abstract: 705,858. Attaching articles to wearing apparel. KEMBER, F. C. July 9, 1951, No. 16279/51. Class 43 A safety device for retaining a pocket implement, e.g. a fountain pen or pencil, in a pocket or the like comprises a body adapted to be entered between the implement and its usual clip mounted thereon, with the clip in engagement with the adjacent face of the body so as normally to resist withdrawal, and means for mounting said body on the lip of a pocket. A body part 1, Fig. 2, is provided on its rear face with two arms 3 for engaging over the edge or lip 2 of a pocket and has at its base an apertured part 4 for engagement by a safety-pin fastened inside the pocket. A wall 5 stands up from the side edges and base of the front face of the body 1, said front face being transversely corrugated at 9a. In use, the clip c of an article having been pushed down the front face of the device over the corrugations 9a, the usual enlargement 7 at the end of the clip is retained by the resilience of the latter beneath the lowermost corrugation. To release the enlargement 7 it is either pulled or lifted over the corrugations. In a modification, Figs. 6 and 7, the apertured part 4 is replaced by a hook 11 which pierces the material of the pocket, and the front face of the device is formed with a channel 12 leading via a groove 14, which passes through a single corrugation 9b to a depression 13 having an inclined bottom which merges into a flat part 10a. In use the enlargement 7 of the clip slides down the channel 13, along the edges of the groove 14, and drops into the depression 13, part of the area of the clip then being received in the groove 14. To release the enlargement 7 the clip is pushed down farther so that the ball slides on to the flat part 10a, from where it may be either lifted over the corrugation 9b on slid sideways so that when the clip is pulled up the ball will travel up to one side of the depression 13.