baber/WOPTO huggingface dataset:
Patent GB-615456-A (GB)
Title: Improvements in or relating to a process of producing birefringent material
IPC: G02B5/30
Filed: 1946-02-27
Abstract: 615,456. Polarizing-apparatus. INTERNATIONAL POLAROID CORPORATION. Feb. 27, 1946, Nos. 6090, 6091 and 6092. Convention dates, March 3, 1945, and April 11, 1945. [Class 97 (i)] A birefringent film is formed on an element, e.g. a glass plate by the thermal evaporation in vacuo of one or more benzenoid compounds or a mixture thereof with a resin such compounds having molecules which orient themselves on the plate when deposited under such conditions. Suitable materials are tere- and iso-phthalic acids or mixtures thereof, naphthalic, sulphanilic and diphenic acids. Alternatively a mixture of isophthalic acid and uric acid, and anthine or strychnine or successive layers of the two phthalic acids may be deposited. These substances may be evaporated as a mixture or separately, and resins such as polyindene or polyvinyl compounds may be evaporated therewith to improve transparency. Other suitable compounds are uracil and melamine. The substance is placed in a stainless steel or porcelain crucible 26 electrically heated by filaments 32, 34 and contained in an evacuated bell-jar 24, the film being deposited on a plate 20. A wire mesh 35 prevents the evaporation and deposit of large particles. The Specification as open to inspection under Sect. 91 refers also to the use of nicotinic and fumaric acids. This subject-matter does not appear in the Specification as accepted.
Patent GB-506858-A (GB)
Title: Improvements in or relating to beer raising apparatus
IPC: B67D1/16
Filed: 1938-02-26
Abstract: 506,858. Raising beer by air pressure. SIMPSON, G. H. Feb. 26, 1938, No. 6101. [Class 102 (ii)] In beer-raising apparatus in which air pressure is maintained in a barrel 3 by means of a compressor 1 so that beer is forced up through a pipe 4 to a. counter draw-off tap 5 above a drip tray 7, waste beer from the drip tray is caused to flow by gravity back into the barrel, whilst maintaining a constant air pressure in the system, by means of an intermediate closed tank 6 at a lower level than the drip tray. The flow of the waste beer is controlled by a lever 33 and link 21 which turn tapered plugs 17, 22 within sleeves 10, 23, this turning movement being limited by pins 27, 28 working in slots 29, 30. With the lever 33 in its down position, communication between the tank 6 and the barrel 3 is cut off, and when the weight of the beer in a, pipe 8 overcomes the air pressure in the tank, a non- return valve 9 opens and the beer flows through openings 15, 16 in the sleeve 10 and a port 20 in the plug 17, and a filter 13 into the tank, the air displaced in the tank escaping to the atmosphere through openings 12, 14 in the sleeve 10 and ports 18, 19 in the plug 17. With the lever 33 in its up position, communication between the drip-tray and the tank, and from the tank to the atmosphere, is cut off and beer flows from the tank through openings 24, 25 in the sleeve 23 and a port 26 in the plug- 22, and a pipe 31 into the barrel, the air displaced in the barrel flowing through an air pressure line 32, which forms an extension of. the main pressure line 2, and a byepass formed by openings 11, 12 in the sleeve 10 and port 18 in the plug 17, back into,the tank.
Patent GB-334178-A (GB)
Title: Process of and apparatus for making acetylene and other products
IPC: C07C4/00
Filed: 1929-02-25
Abstract: 334,178. Wulff, R. G. Feb. 25, 1929. Oil gas; gaseous mixtures.-Combustible gases are prepared by heating vaporized hydrocarbons under a partial pressure of less than one atmosphere to a temperature exceeding 815‹ C. for a short time, the reaction being effected in a non- ferrous refractory vessel in the substantial absence of gases containing free oxygen and the reaction products being rapidly cooled. The initial materials include casinghead gas, gas oil, petroleum fractions, carburetted natural gas, higher olefines, naphthenes, and aromatic hydrocarbons such as benzene or toluene. The reaction may be effected under reduced pressure, or a mixture of the hydrocarbon with a diluent, e.g. mercury vapour, steam, nitrogen, carbon monoxide, or hydrogen, may be treated at atmospheric pressure. The time of exposure of the hydrocarbons to the reaction temperature should be between 0.002 and 5 seconds. The reaction vessel may be a carborundum tube, which may contain pieces of carborundum, quartz, sillimanite or other refractory. As shown, oil vapour supplied by a pipe 47 is mixed with steam supplied by pipes 44, 45 and the mixture is led to a crack. ing-tube 21, or to a number of cracking-tubes joined in series or parallel. The gaseous products pass to a condenser 26, which serves also for the production of steam. The reaction products are cooled in the tubes 39 by water supplied by a pump 36, and the vaporization of the water is completed by a heater 53. The steam so generated passes through a pipe 40, superheater 42, and pipe 44 to the hydrocarbon supply pipe. Water condensed from the reaction products in the tubes 39 passes to a cooler 31 and then back to the condenser, while the gaseous reaction products pass to a separator 16 for the acetylene and other valuable products. The residual gas, comprising mainly hydrogen and methane, passes to a holder 17, from which it is led as required to the burners heating the cracking tube, or to the heater 53. The modifications necessary to adapt the apparatus to the use of mercury or hydrogen as a diluent are referred to. The Specification describes also a modified apparatus in which the steam is generated in a boiler separate from the condenser, Fig. 3 (not shown), and a further modification in which a diluent is dispensed with, the pressure on the hydrocarbon being reduced by means of a vacuum pump, Fig. 1 (not shown) . Specific examples of the operation of the process are given. Specification 269,547 is referred to.
Patent GB-180079-A (GB)
Title: Improvements in or relating to amusement apparatus and the like
IPC: A63J13/00
Filed: 1921-02-24
Abstract: 180,079. Justice, J. F. Feb. 24, 1921. Roundabouts.-Relates to an amusement apparatus adapted to give passengers the sensations of a submarine voyage when in fact they do not leave the surface. A serpentine watercourse is partially formed as one or more tunnels, the remainder having double glass water tank sides in which are fish, seaweed, and other marine objects. Water is made to flow round the course by centrifugal or other pumps, the current being used to propel imitation submarines, Fig. 5. These submarines consist of a pontoon I3 carrying a superstructure I4, pivoted at I6 and adapted to be longtiudinally inclined by a lever J2 operated by the pilot. Double glass windows I2 are adapted to be filled with water from a tank carried on the submarine and kept full by a pump actuated by a small petrol or other motor J, which may also be adapted to make the superstructure oscillate through cams I,. Water-jets are provided in the tunnels to wet the exterior of the submarine. In cases where ground space is limited, the submarines are attached to radius-rods pivoted to a standard and adapted to be rotated by hand. Scenic effects are provided by projecting cinematograph pictures of the sea-bed on to a concave screen viewed through a double window in the front of the boat. A glass tank containing water, live fish, &c. may be, interposed between the submarine and the screen.
Patent GB-1197999-A (GB)
Title: Improvements in or relating to Relays
Inventor: MORCOMBE PETER HALEY
IPC: H01H51/12
Filed: 1968-02-08
Abstract: 1,197,999. Electromagnetic relays; electric selectors. STANDARD TELEPHONES & CABLES Ltd. 5 Feb., 1969 [8 Feb., l968], No. 6303/68. Headings H1L and H1N. [Also in Division H4] A multicontact relay which may be used in telephone matrices to switch either eight wire or four wire connections has a coil mounting E-shaped magnetic structure 16, the middle arm of the structure being longer than the outer arms thereof and extending through an insulating plate 15 into a chamber 14 enclosing movable spring contacts in sets biased to act on opposite ends of an armature 19 which is recessed to fit on the end of the middle arm of the structure 16 and is biased to a centre-stable position by the contact springs which cooperate with respective sets of fixed contacts on a further plate 10 parallel to the plate 15 and forming a wall of the chamber. The fixed contacts are parts of a printed circuit arrangement on the plate 10 and the movable contact springs are bent down at 13 to engage or be secured to printed circuit connections on an upper board 1]. The springs engage an insulator 20 on the armature 19 and one made from a single stamped-out blank 2, 3 (Fig. 1, not shown) which is bonded to an insulating frame 12 before the springs are separated from the frame of the blank to provide the structure shown in Fig. 4 with the divided contact ends coated in " precious metal." The member 15 has legs 21 (Figs. 7 to 10, not shown) which extend through holes in the frame 12 and plates 10, 11 to be secured by a spring clip (33) engaging in slots in the ends of the legs. The coils 17, 18 of the relay may be connected with respective diodes mounted on the upper printed circuit board and form part of a four-wire crosspoint (Fig. 11, not shown). Fig. 12 shows the contacts of one relay 40 as single wire connections arranged so that if the relays L.H. coil is energized inlet 3 is connected to 42 and inlet 4 to 41. If the R.H. coil is energized inlet 1 is connected to 42 and inlet 2 to 41 whilst the choice between the two inlets is effected by a divider relay similar to that shown but with a lesser number of contacts. The divider relay may have a permanent magnet middle arm to its magnetic structure to retain the armature. Reference has been directed by the Comptroller to Specifications 1,083,596, 1,116,556 and 1,116,557.
Patent GB-1336413-A (GB)
Title: Refining hematite pig iron in a converter
IPC: C21C5/34
Filed: 1972-02-10
Abstract: 1336413 Refining of pig iron CENTRE DE RECHERCHES METALLURGIQUES - CENTRUM VOOR RESEARCH IN DE METALLURGIE 10 Feb 1972 [10 Feb 1971 7 April 1971] 6329/72 Heading C7D Pig iron is reduced in a converter, oxygen being introduced into the molten pig iron below the surface of the iron and powdered lime is added through the mouth of the converter either before or at the start of oxygen blowing. The quantity of lime used is less than 12 kg per kilogram of silicon initially contained in the pig iron, the total surface area of the lime powder being at least 45m<SP>2</SP> per metric tonne of pig iron, and a part of the quantity of lime being fine lime having a specific surface area higher than 2À5m<SP>2</SP> /kg of lime.
Patent GB-834797-A (GB)
Title: Apparatus for automatically binding packages with binding material
IPC: B65B13/02
Filed: 1956-02-08
Abstract: 834,797. Bundling machines. ERAPA. Feb. 8, 1956 [Feb. 21, 1955], No. 6387/59. Divided out of 834,795. Drawings to Specification. Class 94(1). The subject-matter of this Specification is is substantially the same as that described in Specifications 834,795 and 834,796 but the claims differ.
Patent GB-554711-A (GB)
Title: Improved support for fire hose
IPC: A62C31/28
Filed: 1942-05-12
Abstract: 554,711. Fire-extinguishing. BURT, F. W. May 12, 1942. No. 6388. [Class 47 (ii)] A support for fire hose comprises a tubular arm A, bent near its lower end to form a groundengaging spike B, and fitted towards its upper end with a curved arm G carrying strap fastenings, a bent member H with U-shaped members J to engage lugs on the nozzle coupling, and a curved piece K to engage the nozzle. At the lower end of the arm A, and spaced above it, is a curved U-shaped hose guide C which on one side is carried by a short length of strip steel D welded to the arm A, and on its other side by an extension E on the arm A. The upper end of this extension is inturned and carries, in line with the hose, a socket F for a bent operating handle L, which is held in the socket by a removable pin so that its position can be reversed for high or low elevation of the support. A cross arm M at the end ,of the handle carries hooks N for engaging the operator's belt in either position of the handle. Specification 546,813 is referred to.
Patent GB-105976-A (GB)
Title: Improvements in Levelling and Adjusting Means.
Inventor: FRYE JASON SAMUEL
IPC: F16M11/12
Filed: 1916-05-04
Abstract: 105,976. Frye, J. S. May 4, 1916. Levelling - heads. - Levelling- means, shown in connexion with a theodolite but applicable generally, comprise a plate 10, Figs. 2 and 5, having an inclined upper surface 12, rotatably mounted on the tripod, above which is a second member 17, Figs. 2 and 4, comprising two rings united by two inclined members 21, 22, also rotatable about a vertical axis. The instrument 1 is provided with a ball-and-socket joint 3 engaging the tripod head, and four levelling-screws 30 engaging sockets 32, one pair of which engages the inclined surface 12 on the lower plate 10, while the other pair engage the inclined cam surfaces, 21, 22 on the upper member. In levelling, the lower memoer is first rotated until the two screws engaging with it are approximately correct, when these arc screwed down, clamping this plate in place. The upper member is now turned, thus rocking the instrument about the two first screws, until the instrument is approximately level. The final aceurate levelling may be performed in the usual manner by the screws.
Patent GB-1494245-A (GB)
Title: Magnetic brush type image development apparatus
IPC: G03G15/09
Filed: 1975-02-14
Abstract: 1494245 Electrostatic development apparatus FUJI XEROX CO Ltd 14 Feb 1975 [20 Feb 1974] 6481/75 Heading G2H A magnetic brush development roller comprises a fixed, hollow magnetic body 3 and a rotatable outer sleeve 4, the body 3 being so magnetized that axially extending magnetic N and S poles are formed alternately along its periphery and the sleeve being mounted concentrically about the body for rotation with respect to it and having at one end a bearing portion 6 which extends axially within the body.
Patent GB-512431-A (GB)
Title: Improvements in slit burners for heating metals
IPC: C21D1/08
Filed: 1938-03-02
Abstract: 512,431. Gas burners. 1. G. FARBENINDUSTRIE AKT.-GES. March 2, 1938, No. 6559. Convention date, March 2, 1937. [Class 75 (i)] In a burner for fuel gas and oxygen, particularly for surface hardening metal bodies, the head a is made of one piece with an outlet slot e and is stiffened by one or more rows of bolts c, pins, rivets, screws or the like, or by one or more .perforated partitions f, to prevent deformation of the slot by the flame flashing back. The distance apart of the bolts, or the diameter of the perforations g, is preferably such that the flame cannot flash back beyond the row of bolts or the partition. When two or more rows of bolts, or partitions, are provided, the bolts of adjacent rows, or the perforations of adjacent partitions, may be staggered, and the distance apart of the bolts in the various rows, or the diameter of the perforations in the various partitions, may be graded so as to stop a flashback before the second or any further row of bolts, or partition. The partitions may be formed by boring cylindrical chambers in a solid part of the head and connecting the cylinders by perforations.
Patent GB-1026432-A (GB)
Title: Improvements in or relating to a method of making a reinforcement for the tread ringof a readily detachable tread tyre
IPC: B29D30/70
Filed: 1964-02-18
Abstract: 1,026,432. Pneumatic tyres. PIRELLI S.p.A. Feb. 18, 1964 [March 1, 1963], No. 6628/64. Heading B7C. A reinforcement for a tread ring of a pneumatic tyre comprises an even number of superposed layers and is made by winding a cord in a helix, adjacent convolutions of which lie in planes substantially parallel to the midcircumferential plane of the ring, this winding being started at a point intermediate the axially outer edges of the ring and the convolutions being laid in one axial direction to form part of a first layer, then in the opposite direction to form part of a second layer and the remainder of the lirst layer and finally in the first direction to complete the second layer of the reinforcement. The reinforcement may be uninterrupted across the tread ring or be formed as a plurality of axially separated reinforcements by cutting the cord at appropriate points.
Patent GB-589166-A (GB)
Title: Three-speed gear particularly adaptable for cycles
IPC: B62M11/14
Filed: 1945-03-16
Abstract: 589,166. Change-speed epicyclic gearing. HINKS, L. S. March 16, 1945, Nos. 6642/45 and 7070/46. [Class 80 (ii)] A three-speed gear for a cycle pedal-crank bracket, domestic wringing machine, or other purpose, shown in Fig. 1 with its parts axially separated, comprises a driven sprocket 7 formed with an internal ring-gear 7c, and arranged closely between a driving internal ring-gear 8, secured to the pedal-crank spindle 1, and a stationary flanged plate 3, the ring-gears 7c, 8 meshing pairs of rigidly-connected stepped planets 10a, on a freely-mounted carrier 10, which also carries planetary idlers 10b, Fig. 2, through which the larger planets 10a mesh a sun 10e, freely mounted on the driving spindle 1. The driven sprocket 7 journals on caged rollers 6 on the plate 3 and abuts on a seal 5. Control is by a radially-sliding stop 4 on the fixed plate 3. In its intermediate position the stop 4 is ineffective, and a pawl 10h, carried by a plate 10f, Fig. 1, fixed to the sun 10e, is spring- pressed on to ratchet teeth 10c, on the planetcarrier 10, thereby locking the gearing solid for direct-drive. In its innermost position the stop 4 pushes the pawl 10h off the ratchet-teeth 10c and engages a notch 10g, Fig. 3, in the plate 10f, thereby holding the sun 10e and yielding an increased ratio. In its outermost position the stop 4 releases the sun and engages a projection 10j on the planet-carrier 10, thereby holding the latter and yielding a reduced ratio, with the pawl overrunning. According to the first Provisional Specification the high speed is obtained by holding the planet-carrier, and the low by holding the sun.
Patent GB-684624-A (GB)
Title: Improvements in jacks
Inventor: DEWAR DOUGLAS
IPC: F15B15/20
Filed: 1950-03-18
Abstract: 684,624. Dashpots. DUNLOP RUBBER CO., Ltd. Feb. 14, 1951 [March 18, 1950], No. 6800/50. Class 108 (iii). [Also in Groups XXVIII and XXIX] In a fluid pressure operated jack comprising a piston 7 and a cylinder 1 and a tubular piston-rod 11 slidable through an end 4 of the cylinder, a substance of high viscosity is contained within the rod 11 and an apertured plunger 19 within the rod adjacent to the end 4, and secured by a rod 17 to the other end of the cylinder, permits passage of said substance from one side to the other and restricts the passage in one direction. Opposite faces of the plunger 19 are connected by passages 22, which passages may be closed by a washer 23 slidably mounted on an extension 19a of the plunger. The plunger 19 has a clearance fit in the piston-rod 11. In a modification the washer 23 is replaced by a flexible baffle which is secured against the plunger 19 but may flex to uncover the passages through the plunger. The viscous substance is silicone grease.
Patent GB-892343-A (GB)
Title: Improvements in pulse shaping circuits more particularly for television purposes
IPC: H03K4/12
Filed: 1959-02-27
Abstract: 892,343. Valve pulse shaping circuits; tuning indicator arrangements. LOEWE OPTA A.G. Feb. 27, 1959 [March 1, 1958], No. 6825/59. Classes 40(5) and 40(6). In a pulse shaping circuit comprising a valve having two control grids and two screen grids, negative pulses fed to the first control grid are shaped by the combined effect of the bias on the second control grid and the voltage developed across an impedance in the screen circuit. Negative pulses, shown at a in Fig. 2, fed to grid gl of a heptode, cut off the space current and allow the screen capacitor 2 to charge as shown at b. At the end of each pulse the valve can only pass full anode current when the screen voltage is above the level of the dotted line corresponding to the value of bias on grid g3. Hence the anode waveform shown at c, d, e, f, g, varies in shape dependent on the value of the voltage on grid g3. Alternatively an inductor or a resonant circuit tuned to the fundamental or a harmonic of the input, may be included in the screen circuit. A triode contained in the same bulb as the heptode may be used to amplify and limit the anode waveform, e.g. so as to produce waveform h from anode waveform e. Tuning indicators. In a television receiver, pulses derived from line or frame scanning circuits may be fed to grid gl, whilst the grid g3 is fed with a rectified voltage derived from the last intermediate frequency stage. If the anode is coupled to the grid of tne cathode ray tube, the width of the bars so displayed will be dependent on receiver tuning.
Patent GB-1105336-A (GB)
Title: Improvements in or relating to the piercing of metal billets
IPC: B21C23/21
Filed: 1966-02-16
Abstract: 1,105,336. Billet piercing; extruding. BABCOCK & WILCOX CO. 16 Feb., 1966 [23 March, 1965], No. 6861/66. Headings B3H and B3P. In a hot piercing of a metal billet 45 within a container 20, Fig. 5, a shear ring 12 is placed in front of the billet to facilitate removal of a slug of metal at the end of the piercing operation, and the shear ring is changed for each billet. Hot billets are supplied along a conveyer 21, Fig. 1, to a rotary turret 10 carrying four shear rings at positions 13-16. The turret is indexed by fluid motor 26 through a ratchet mechanism and is located in position by a locking piston device 29. As it approaches the turret, the billet is tilted and aligned with the shear ring at position 13 and falls therewith into the bore of container 20 at position A. Powdered glass lubricant, Fig. 4 (not shown), is then deposited on top of the billet from a hopper 35 which is swung horizontally into position, on pivoted arm 36 operated by an hydraulic or pneumatic piston mechanism 37. The container is then moved transversely into position B at the piercing station where it is compressed by ram 46 and pierced by mandre 47. During the initial part of the piercing, which includes backward extrusion, the aperture 52 in shear die 12 is closed by an hydraulically operated plug which is later withdrawn to permit the slug to be extruded through the aperture. The mandrel has a removable head 55 which is ejected with the slug through the shear ring 12 and a back-up ring 54. After withdrawal of the mandrel, the container is returned to position A where the pierced billet and the shear ring are ejected by hydraulically actuated stem (42) and ring (43), Fig. 6 (not shown. The billet is removed by conveyer 24. Turret 10 is then indexed to bring a fresh shear ring 12, which has been cooled by water jets at position 16, into alignment with the container bore. The sequence of operations may be controlled manually or automatically. Billets of ferrous metal may be extruded subsequently into tubes.
Patent GB-326336-A (GB)
Title: Automatic ventilating device particularly for dwellings
IPC: F24F11/04
Filed: 1929-03-02
Abstract: 326,336. Hertel, A. March 2, 1929. Ventilators.-An automatic ventilating device comprises two independent vertical flaps e adapted to be, opened or closed on vertical axes f by the difference in pressure on the two sides of the flaps, and means, operable from the floor of the space, being ventilated, are provided for limiting the opening movement of the flaps. The naps e are mounted at one end of a casing c which may be arranged in the, wall of a chimney, and the limiting means consists of a spring-controlled member g which is adjustable in a slot c<2> by means of a cord or chain i. The device g may be employed to prevent opening of the flaps. A cover d having radial openings may be provided at one end of the casing.