baber/WOPTO huggingface dataset:
Patent GB-233939-A (GB)
Title: Improvements in and relating to pivot-adjustments applicable to vehicle wind-screens
IPC: B60J1/04
Filed: 1924-08-05
Abstract: 233,939. Fox, G. F., Merris, T., and Cutler, W. Aug. 5, 1924. Pivoting adjustments.- For securing a wind-screen in an adjusted position by a frictional locking device a thumb-screw g is screwed radially into a boss f projecting from a collar e enclosing the tubular member a that carries the screen b, and it passes through a slot h in the tubular member and bears directly against the fixed pivot rod c upon which the screen is rotatably mounted. On tightening up the screw, a frictional grip is obtained on both the inner and outer surfaces of the rotatable sleeve a.
Patent GB-912596-A (GB)
Title: Preparation of caprolactam
Filed: 1959-06-01
Abstract: e -caprolactam is prepared by hydrogenating a 5-cyano-(3)-pentenoic acid C1-5 alkyl ester at elevated temperature in the presence of a hydrogenation catalyst.  Elevated pressures are preferred, e.g. 20-200 atmos.  Temperatures of 80-240 DEG C. may be used; preferably the hydrogenation is effected in two stages, the second at a higher temperature, e.g. 80-120 DEG C. for the first and 200-240 DEG C. for the second.  Suitable solvents include aliphatic and cycloaliphatic ethers; another solvent, e.g. an alcohol may be used in the first stage and replaced by, e.g. an ether, in the second.  Raney catalysts, e.g. nickel or cobalt or nickel/chromium, palladium/cobalt or nickel/cobalt are preferred; they may be activated by adding an alkali to the reaction medium.
Patent GB-1090511-A (GB)
Title: Improvements in or relating to a kinematographic apparatus with a rotary mirror-carrying shutter
IPC: G03B19/18
Filed: 1966-04-28
Abstract: 1,090,511. Cine cameras. PAILLARD S. A. April 28, 1966 [May 11, 1965], No.18599/66. Heading G2E. A cine camera has a mirror-carrying rotary disc shutter 4 rigid with a shaft 6 extending obliquely to the plane of the film F and carrying an eccentric member 14 which actuates film claw 15 to operate in a plane parallel to that of the shutter. Claw 15 pivots and slides about stud 18 by means of its slot 17 and is bevelled at its film engaging end to give maximum contact with the perforations during forward and reverse running. Shaft 6 carries the rotor 8 of an electric motor and has a worm 23 at the rear end by which is driven a shaft 25 carrying film spools 26, 27. The spools are separated by hub 30 of gear-wheel 31 which drives the take-up spool. Wheel 31 is friction driven through spring-loaded washers 32, 33. Shaft 25 also drives a film metering instrument.
Patent GB-1078972-A (GB)
Title: Improvements in and relating to the control of electric motors
Inventor: EADE ROBERT FRANCIS
IPC: H02P25/26
Filed: 1963-05-10
Abstract: 1,078,972. Control of A.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 7, 1964 [May 10, 1963], No. 18618/63. Heading H2J. The rotor circuit of an induction motor comprises bridge rectifier RB, the speed of the motor being reduced by stepwise increase of resistance R1-R3, whilst control of rectifier CR1 provides additional continuous regulation Capacitor C quenches alternately one of the rectifiers CR1, CR2, when the other rectifier is triggered. In another quenching arrangement, the triggering signals for rectifiers CR1, CR2 are obtained through blocking oscillators BO1 BO2, connected to multivibrator MV. Oscillators BO1, BO2 produce triggering signals corresponding to the leading and trailing edges respectively of the output wave from the multivibrator. When a D.C. signal at terminal T6 is zero, the multivibrator is free-running, the rectifier CR1 determining a mean current corresponding to one half of the normal current in the rotor circuit. The conducting periods of the rectifier CR1 are lengthened or shortened by applying positive or negative signals to the terminal T6.
Patent GB-871770-A (GB)
Title: Improvements in or relating to anti-skidding devices for vehicles
IPC: B60B39/00
Filed: 1959-06-01
Abstract: 871,770. Preventing wheel slip. HEINSWIG, J. K. June 1, 1959 [May 31, 1958], No. 18632/59. Class 108(2). To prevent skidding a friction wheel 15, Fig. 1, is mounted on a spring 3 of a rear wheel 1 of a vehicle. The wheel 15 is pivoted on an arm 12 which is pivoted to an end portion 9 of a U-shaped arm which is attached to the spring 3. The two portions of the U-shaped arm are pivoted together at 8, a resilient block 10 being compressed between the two portions. The height of the friction wheel may be regulated by a cam 17 attached to an arm 18 operated from the driver's cabin by a cable 19. Cylindrical friction members 25, Fig. 3, are attached to the tyre 21 of the friction wheel 15 by cup-shaped members 23 and rivets 22. Each member 25 contains a block 26 of sponge rubber which serves to eject snow.
Patent GB-304171-A (GB)
Title: An improved method and machine for the manufacture of pulp board
IPC: D21F9/00
Filed: 1927-07-14
Abstract: 304,171. Hinde, J. J. July 14, 1927. Paper machines; wet presses; drying. - In the manufacture of pulp board from corn stalks and analogous fibrous material, the material is carefully shredded, maintaining a proper proportion of long and short and coarse and fine fibres, fed to a tank C provided with stirrers, and the pulp is picked up in sheet form on an open mesh conveyer belt F passing round a driven skeleton cylinder D having a suction pipe G. The sheet material, supplied between belts F, H passing through rollers I, I<1> and then between drying felts J, J<1> along a box k through which heated air is passed, the felts being maintained dry by heated rolls L. A vacuum press may be interposed between the wet press rolls I, I<1> and the dryer.
Patent GB-121201-A (GB)
Title: Improvements in or relating to Casting Ingots.
Inventor: LUMSDEN THOMAS
IPC: B22D27/08
Filed: 1917-12-17
Abstract: 121,201. Lumsden, T., and Smith, J. Dec. 17, 1917. Casting-machines.-Ingots are jarred during solidification, to prevent piping and accelerate cooling, by mounting the mould j by a flange k on a ring g pivoted to a table b revolving on rollers, and providing the ring g with means such as a roller h engaging a fixed circular stepped cam f, and buffer stops m to give the ingot a jarring motion at intervals.
Patent GB-237901-A (GB)
Title: Improvements in and relating to welding processes and apparatus therefor
IPC: B23K28/02
Filed: 1925-07-23
Abstract: 237,901. British Thomson-Houston Co., Ltd., (Assignees of Palmer, R.). July 30, 1924, [Convention date]. Hearing by chemical action and molecular combination.-The adjoining portions of metal members or added metal supplied between the parts, or both, are fused to form a malleable joint devoid of oxides, nitrates, carbides, &c. by the heat developed by the reassociation of the atoms of dissociated hydrogen. An arc is struck between the ends of a pair of tungsten or like substantially non-consuming electrodes 1, 2 arranged at an angle or in line, and a jet of hydrogen is passed from a valved pipe 5 through a nozzle 28 of molybdenum or like refractory metal, transversely across the arc. The hydrogen is thus dissociated and impinges on the work, whereupon it is reconverted into molecular hydrogen and the heat evolved fuses the parts to be joined. Air is excluded by excess of hydrogen from the nozzle or by supplying hydrogen through dents in a metal cover plate 21 from a valved pipe 23. The electrodes are surrounded by lava bushings 24, 25 and may be clamped to. magnetic cores 10 enclosed in holders 3, 4 secured to insulating blocks 26, 27. The cores are withdrawn to strike the arc against the action of adjustable springs 18 by coils 11, 11<1> connected in series with the electrodes to a source or alternating or direct current. With a separation of about “ inch between electrodes of about “ inch in diameter, a current of 40 amperes at 300 volts may be used, the distance between the electrodes and the work being about 1 inch. The parts may be provided with a heat protecting shield 30 and may be mounted on an insulated bracket 29. The apparatus may be portable or may be traversed with respect to the work or may be stationary with respect to traversed work. Specification 237,898 is referred to.
Patent GB-1043609-A (GB)
Title: Improvements relating to organotin compounds
Inventor: OAKES VINCENT
IPC: C07F7/22
Filed: 1964-05-06
Abstract: Dialkyl tin salts of organic acids are prepared by grinding together a dialkyl tin oxide and an acid anhydride.  The mixture may be heated, after grinding, to a temperature up to 40 DEG  C. for up to 24 hours.  The oxide may be mixed with an equimolar proportion or with an excess of the anhydride.  Excess anhydride may be left in the product to reduce the m.p. or driven off by heating to 40 DEG  C. under reduced pressure. Specified acid anhydrides are maleic, succinic and phthalic, and a specified tin oxide is dibutyl tin oxide.
Patent GB-493834-A (GB)
Title: Improvements in the mounting of twin wheels or wheels with twin tyres
IPC: B60B11/06
Filed: 1938-06-25
Abstract: 493,834. Vehicle wheels. DUNLOP RUBBER CO., Ltd. June 25, 1938, No. 18868. Convention date, Aug. 18, 1937. [Class 144 (i)] To equalize the load on the tyres of twin wheels, or twin-tyred wheels, when running on cambered roads, the wheel-mounting comprises a series of rings formed of yielding material, preferably rubbered canvas, connected alternately to the rim and hub elements of the wheel so as to permit tilting of the latter. In the construction shown in Fig. 1, the resilient rings 5 are suspended between the wheel disc 2, and hub flanges 12, 14 on bolts 6, 7 projecting alternately from the disc and the fianges. In this form, the load is transmitted through a ball-joint between the disc and a collar 4 on the axle, the resilient rings taking the driving- stresses. In the modification shown in Fig. 5, the load and drive are. transmitted through the rings 5 which are suspended between alternating radial lugs 17, 19 on the rim and hub respectively.
Patent GB-1210945-A (GB)
Title: Improvements in or relating to fluid pressure operated braking systems
Inventor: FARMERY GEORGE KENNETH
IPC: B60T17/02
Filed: 1968-04-22
Abstract: 1,210,945. Fluid pressure braking system. CLAYTON DEWANDRE CO. Ltd. 16 April 1969 [22 April, 1968], No. 18911/68. Heading F2F. A fluid pressure operated braking system for motor vehicles is provided with a plurality of brake actuators at least some of which are associated with lock actuators. Each lock actuator coacts with its associated brake actuator output rod and is held in its inoperative position by application of pressurized fluid to its actuating mechanism. Normal operating reservoir pressure is determined by a compressor unloader means, e.g. a valve 8 (Fig. 5, not shown), controlled by a spring-loaded governor valve 6 responsive to the reservoir pressure. Means are provided on release of the lock actuators by a control member to augment the spring loading of the governor valve 6 to cause a higher build-up of pressure in the reservoir 2. This higher pressure is required in case the lock actuators have jammed due to cooling of brake drums and the consequent contraction thereof. In the construction shown the control member comprises a hand-operated valve unit 4 the lever thereof working in an H-shaped slot (Fig. 3, not shown). The augmenting of the spring loading of the governor valve (Fig. 4, not shown) is effected by pressurized fluid from the reservoir.
Patent GB-653119-A (GB)
Title: Process for preparing a foodstuff suitable as an infant food
IPC: A23C9/154
Filed: 1948-07-14
Abstract: An infant food is made by mixing whole or skim milk powder with a solid organic acid and a cold-swelling flour, the proportion of acid being sufficient for complete coagulation of the casein on dissolving the mixture in an aqueous liquid and the proportion of cold-swelling flour being sufficient for the formation of a fine, non-separating casein coagulum when the mixture is so dissolved. A sugar, e.g. maltose-dextrin obtained by hydrolysing starch, saccharose, glucose, fructose, or lactose, may be incorporated. According to an example there are used 30 parts of whole milk powder, 1 part of powdered citric acid mixed with 10 parts of maltose-dextrin, and 4 parts of cold-swelling flour.  The cold-swelling flour is obtained by heating a mixture of water and a suitable flour, e.g. potato, barley, rice, or wheat flour, to a temperature above the gelatinizing temperature, pressing the mixture to a thin layer, drying the layer, and comminuting the dried layer.  Specifications 603,074 and 619,220 are referred to.
Patent GB-890520-A (GB)
Title: Improvements in nuclear reactors and in restraint garters therefor
Inventor: DELL JOHN DAVID
IPC: G21C5/08
Filed: 1959-06-03
Abstract: 890,520. Nuclear reactors. BABCOCK & WILCOX Ltd. June 3, 1960 [June 3, 1959], No. 1.8948/59. Class 39(4) In a nuclear reactor having a temperature compensated restraint garter surrounding a stack of material providing the moderator and reflector of the nuclear reactor core, the garter includes a series of circumferentially distributed levers adapted to rock under the differential thermal expension of lever actuating means and arranged and dimensioned to give a circumferential expansion or contraction of the garter substantially equal to the circumferential thermal expansion or contraction of the adjacent part of the stack. The garter of which part is shown in Fig. 2 comprises a plurality of channel-shaped stays extending along sides of the stack within recesses (not shown) in the stack; mild steel tie rods 6 extend along alternate stays 5, and along the other stays 7 extend pairs of rods 8 and 9, the rod 8 being a stainless steel tube in compression and the rod 9 being of mild steel in tension. Rods 8 and 9 are pivoted at their ends to the longer arms of cranked levers 22, the pivot pin 25 connecting each rod 8 and lever 22 also passing through enlarged apertures in a pair of side plates 13 (of which only the upper is shown in Fig 2) welded to the base plate 11 of the stay 7. The shorter arm of each lever 22 is pivoted to a tie rod 6 by a pin 45 which also passes through an aperture in a swing link 48 and through enlarged apertures in two similar balance lever plates 52 (of which only the upper is shown in Fig. 2). The outer end of each swing link 48 is pivoted by a pin 61 to the pair of balance lever plates 52. Each pair of balance lever plates 52 is coupled to the side plates 12 of adjacent stays 5, 7 by pins 68, 74 passing through apertures in the balance lever plates and through apertures in the side plates which are elongated in a direction parallel to the stay. Thus a radially inward force produced by the tie rods 6, compression rods 8 and tension rods 9 is transferred to the swing links 48 by the pin 45, from the swing link 48 to the balance lever plates 52 by the pin 61, and from the balance lever plates to the stays by pins 68 and 74. The rods 8 have a greater coefficient of expansion than rods 6 and 9 and the dimensions are chosen so that the rocking of levers 22 on thermal expansion is such that overall expansion of the garter is equal to that of the stack. The rods 8 may be tubular and may be internally threaded on to stems of the associated clevises, the threads of the two ends being of opposite hand so that the initial tension of the garter may be adjusted by rotating rods 8. A nuclear reactor core may be surrounded by one such garter at the top and two at the bottom, the intermediate garter being as described in Specification 890,523.
Patent GB-1158278-A (GB)
Title: Improved Closure Means for a Container.
Inventor: BAUMANN GUSTAV
IPC: B65D39/08
Filed: 1967-04-25
Abstract: 1,158,278. Container closures. G. BAUMANN. 25 April, 1967, No. 18968/67. Heading B8T. A container 1 of resiliently deformable plastics or similar material has a closure formed with a cap 3 and a flange 4 extending into the container so that one or more ribs 5 on the flange co-operate respectively with one or more grooves 2 on the inside container surface (or vice versa, Fig. 5, not shown), both the rib and groove being of part-circular cross-section and the radius of curvature of the rib being greater than that of the groove. A spacer may be provided between the cap 3 and the container contents, Fig. 4 (not shown). Sprinkler openings Fig. 6 (not shown), may be provided in the cap.
Patent GB-118965-A (GB)
Title: Improvements in Nut Locks.
Inventor: KENT WALTER GEORGE
IPC: F16B39/282
Filed: 1917-12-21
Abstract: 118,965. Kent, W. G., and Curling, B. C. Dec. 21, 1917. Locking nuts.-A nut A is looked by balls E carried in a washer C arranged between the nut and the work and engaging tapered slots B in the nut. The washer is provided with projections F to limit the relative motion between the washer and nut to ensure the engagement of the balls with the slots. The nut is provided with a flange H to retain the washer in position.
Patent GB-580907-A (GB)
Title: Improvements relating to fuel injection pumps for two-stroke internal combustion engines
IPC: F02M59/10
Filed: 1944-10-04
Abstract: 580,907. Fuel-injection pumps. MILLAR, W. H., and REBBECK, SIR F. E. Oct. 4, 1944, No. 19038. [Class 102 (i)] A fuel-injection pump for a two-stroke internal combustion engine comprises two coaxial pistons F, G having a common working chamber O. and connected to differential pistons D connected by a liquid column to a piston A formed with a valve A<1> and exposed to the pressure in an engine cylinder N'. When the pistons move together, the edge of piston F closes the port C<2> and injection through the outlet commences and ceases when the helical edge G<2> on the piston G opens the port F<2>. A slide valve R is actuated through a lost-motion connection by the piston F to connect the fuel supply port C' to either the bypass port C' or the inlet port C<3> at the appropriate time. The fuel injection pump is supplied with fuel by a boost pump T, U which is supplied with fuel under pressure from a supply pump. The boost pump is connected by a liquid column N to a compression space in the engine that is operating approximately 180‹ out of phase with the engine cylinder N'. When the boost pump T, U is at the bottom of its stroke, fuel under pressure flows through the valve A, and ports J' and Y' in the piston U to raise the piston T and when the shoulders U' and T' engage also to raise the piston U. When pressure is applied to the piston T through the liquid column, fuel is injected from beneath this piston into the port C' until the piston closes this port. At this point, fuel beneath the piston T is bye-passed and pressure is applied to the fuel in chamber D' by the piston U to deliver it. through the valve B' to the passage C'. The passage C' is connected to a cylinder containing a piston X loaded by an adjustable spring Y to determine the pressure that shall exist in the port C<5> and also the working chamber O of the pump and thus determine the pressure during the compression stroke in the cylinder N' at which the pistons F, G commence to move together. The fuel spilled through the bye-pass port F<2> passes through the valves W, B<2> to the port C<5>. A valve K' loaded by an adjustable spring permits make-up liquid to pass from the chamber 11 to the liquid column.
Patent GB-623090-A (GB)
Title: Improvements in systems comprising a hot-gas reciprocating engine
IPC: F02G1/043
Filed: 1946-06-26
Abstract: 623,090. Hot gas engines. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 26, 1946, No. 19066. Convention date, June 28, 1945. [Class 7 (i)] A hot gas engine comprises means apart from the normal control of the heat supply or the normal control of the supply of cooling medium to control the increase in temperature of the heater and/or the decrease in temperature of the cooler to within desired limits upon braking a load the engine being driven by the kinetic energy dissipated by the load braked such that heat energy is generated by the engine with the aid of the gaseous working medium in the engine. In Fig. 1 a hot gas engine 40 is connected to drive a vehicle or vessel through a reversing gear 45. Braking is effected by setting the engine to operate in reverse. A fuel control cock 42 is closed or practically closed. The heater is cooled by a fan on the crank shaft which blows air over the heater by way of a pipe 47. A cock 48 may serve to close the pipe or to limit the supply of air during braking to the quantity required. Fig. 2 shows a hot gas engine in which the heater contains a material 27 which becomes liquid at a temperature which just exceeds the normal working temperature and the cooler contains a substance 29 which solidifies at a temperature just below the normal temperature of the cooling water. When it is desired to use the engine as means for braking the kinetic energy of a load the phase of movement of a displacer 14 with respect to a working piston 15 is altered by adjustment of a sliding bush by which an eccentric 20 is mounted on the engine crank shaft 18. The adjustment is such that the engine cycle is as follows : heating in a heater 11, compression in the cylinder 10, partial heat abstraction in a regenerator 12, cooling in a cooler 13 and expansion in the cylinder 28. In this cycle the heated gas is compressed so that the temperature of the gas increases further and the heat of the gas is transferred to the heater. The heater may thus increase in temperature on braking. The heat released during braking may thus melt the material 27. An increase in temperature of the heater during braking is accompanied by a decrease in the temperature of the cooler. The decrease in temperature can be artificially promoted by reducing the quantity of cooling medium during braking. As shown a valve 25 which controls the supply of cooling air is operated by a thermostat. If cooling water is used it is undesirable to cause the temperature to drop below freezing point and the supply of cooling water may be increased by use of a thermostatically controlled valve. The use of material 29 in the cooler avoids undue temperature drop when heat is being taken from the cooler. Specification 29505/46, as open to inspection under Sect. 91, is referred to.
Patent GB-1291666-A (GB)
Title: Devices for indicating flows of fluid
IPC: G01F1/24
Filed: 1971-06-04
Abstract: 1291666 Measuring fluid-flow; fluid actuation of switches SULZER BROS Ltd 4 June 1971 [18 June 1970] 19078/71 Heading G1R [Also in Division H1] In a fluid-flow device having a plurality of electrically magnetizable floats movable in duct 2 and co-operable with electrical contacts 8, the contacts 8 comprise two conductors, such as tubes 7, one on each side of the ducts 2, and a series of permanent magnets 13, each magnet 13 located within the tube 7 and having a length equal to, or at least the distance between, adjacent duct 2 and each end of each magnet being in the region of a duct 2. The magnet 13 may be separated from one another by a non- magnetizable material 14, such as brass, plastics, air or oil. Each tube 7 is connected via member 9 and conductors 10 to an alarm.