baber/WOPTO huggingface dataset:
Patent GB-584673-A (GB)
Title: A frequency stabilized thermionic valve oscillator
IPC: H03B5/08
Filed: 1944-02-18
Abstract: 584,673. Valve generating circuits. LAWTON, J., and LYNCH, A. C. Feb. 18, 1944, No. 3039. Drawings to Specification. [Class 40 (v)] Frequency stabilization, by adjustment of the phase of the harmonics, in a reaction oscillator is achieved by insertion in the feedback path, besides the usual tuned circuit a potentiometer circuit comprising resistive and reactive elements which, while not altering the phase of the fundamental, changes the phase of the harmonics substantially by 90 degrees. This in combination with the 90 degree phase shift produced by the normal tuned circuit causes the harmonic feed-back to be in phase or 180 degrees out of phase, so that any intermodulation products cannot cause a phase shift of the fundamental. The potentiometer circuit in the feed-back path may consist of a resistance and a parallel tuned circuit in series, the tappings being taken off each end of the tuned circuit. Reistances in parallel with the tuned circuit or in series with its arms may be introduced if -required to reduce the (sharpness of tuning. Series resonant circuits or mechanical or crystal resonators may also be used.
Patent GB-845104-A (GB)
Title: Improvements in and relating to compressor discharge valves
Inventor: KITSON JOSHUA WILSON
IPC: F04B39/10
Filed: 1956-01-31
Abstract: 845,104. Compressors. ENGLISH ELECTRIC CO. Ltd. Jan. 31, 1957 [Jan. 31, 1956], No. 3052/56. Class 8(1). [Also in Group XXIX] The space between the cylinder head 13, Fig. 1, of a compressor and a valve plate 12 is divided into suction and discharge cavities by a cross wall, each cavity opening into the compressor cylinder 10 by a separate port 17. The discharge port is provided with a valve comprising a strip 20 of spring steel located at its ends by studs 21, which latter also locate a bowed plate 22 and a bowed spring strip 23, the central portion of the spring strip 23 bearing against the cylinder head 13 whilst the ends of the spring contact the plate 22 in the region of the studs 21. The suction valve 25 consists of a tongue of spring steel which is anchored at one end to the underside of the valve plate 12 and cut away at 26 to avoid covering the discharge port. The valve seats are formed by annular channels 28 around each port.
Patent GB-382492-A (GB)
Title: Perforating device for a printing press
IPC: B41G7/00
Filed: 1932-02-02
Abstract: 382,492. Perforating paper. FUNCKE, C., 13, Schlosstrasse, Ottweiler, Saar, Germany. Feb. 2, 1932, No. 3068. [Class 31 (ii).] In a perforating device for use in a printing press, perforating knives d, after inking of the type, are projected by a cam bar e. The bar e is operated by a rack bar t engaging a gear n loose on a shaft k and carrying an arm n<1>. A rack s is operated from the press to turn a gear o loose on the shaft k and carries an arm o<1>. On the shaft k is an interchangeable toothed wheel r. The rack s and the arm o<1> are oscillated at each movement of the press. When a member q carried by the arm o<1> engages a tooth of the wheel r, the member q engages the arm n<1> of the gear n and the perforating knives are projected. By varying the teeth on the gear r, the operation of the knives is varied.
Patent GB-574829-A (GB)
Title: Improvements in grates for the furnaces of boilers and the like
IPC: F23H9/04
Filed: 1944-02-18
Abstract: 574,829. Boiler furnaces. DANKS OF NETHERTON, Ltd., and DALGLEISH, N. Feb. 18, 1944, No. 3084. Class 51 (i)] A furnace for an internally-flued boiler comprises a grate formed of firebars 1 oscillated in pairs to move the fuel, fed by a sprinkler 9, in counter-current to the flow of combustion gases towards an ashpit 5 at the front end of the furnace, pivoted vanes 11 being provided to control the supply of air to different parts of the grate. The ashpit 5 is sealed, either by a water tank 6 as shown or by a pair of pivoted gates. The vanes 11 in each zone of the grate are pivoted to lugs 12 and rest, at their lower ends, on a cross-shaft 13 carried on bell-cranks 14 pivoted on fixed pins 15, the bell-cranks being actuated to raise or lower the shaft 13 by adjusting a nut 17 on a spring-pressed rod 16.
Patent GB-1381591-A (GB)
Title: Removing contaminating liquids from minerals ores and metal  scrap
IPC: C23G5/02
Filed: 1971-01-26
Abstract: 1381591 Cleaning scrap EXXON RESEARCH & ENG CO 25 Jan 1972 [26 Jan 1971] 3139/71 Heading C7E Metal scrap, minerals, or ores (materials) associated with a contaminating liquid comprising water, oil, or oil/water emulsion are treated with a cleaning liquid which is water containing an emulsifier, liquefied petroleum gas, a C 5 , C 6 , or C 7  hydrocarbon or mixture thereof or light virgin naphtha (defined in the Specification), and the materials are separated from the mixture of contaminant and cleaning liquid and passed to a furnace. For instance, the material may be metal scrap or iron ore, and the contaminant a cutting oil emulsion; the removed cutting oil/cleaning liquid mixture may be treated to recover cutting oil by gravity separation and/or distillation; where the cleaning liquid is a hydrocarbon it may be re-used or burnt.
Patent GB-536639-A (GB)
Title: Improvements in or relating to centrifugal pumps
IPC: F04D29/10
Filed: 1939-11-27
Abstract: 536,639. Adjusting bearings. LA BOUR, H. E. Nov. 27, 1939, No. 3161/41. Divided out of 536,627, [Group XXVI]. [Class 12 (i)] [Also in Group XXVI] The pump shaft 6 of a centrifugal pump is spigotted to the drive shaft 109, which has a ball bearing 110 giving radial support, and a bearing 112 giving radial and axial support. The bearing 112 is easily adjustable by turnscrews threaded through the annulus 115 and bearing at their ends on the top of the bracket 5. Specification 511,878, [Group XXVI], is referred to.
Patent GB-426982-A (GB)
Title: Improvements relating to road vehicle wheels
IPC: B60B1/02
Filed: 1934-01-31
Abstract: 426,982. Vehicle wheels. WOOLLARD, F. G., and REEVES, T. R., Rudge Works, Crow Lane, Coventry. Jan. 31, 1934, No. 3224. [Class 144 (i)] A cap c for the largediameter hub a of a detachable wheel is secured by means of one or more tongues d at one side of the cap, and a screw h or other rotatable fastening at the opposite side, engaging the edge of the hubshell or a part extending inwardly therefrom. The hub may be provided with lugs e for positioning the tongue d.
Patent GB-1452529-A (GB)
Title: Pallet
IPC: B65D19/00
Filed: 1974-01-24
Abstract: 1452529 Load handling pallets E M GARCIA 24 Jan 1974 [2 Oct 1973] 03283/74 Heading B8H A pallet which may be made from plastics material comprises a cruciform member by means of which upper and lower loading panels (not shown) are held in spaced parallel relationship, the cruciform member comprising four pairs of walls 2 having respective openings 4 therein which are aligned with openings 5 provided in outer walls 3 which form the external side surfaces of the pallet, the aligned openings 4, 5 permitting the entry of the forks of a lift truck from any vertical side of the pallet. The upper and lower loading panels, Figs. 2 and 1 respectively (not shown) comprise orifices (8), and ribs or flanges (14) which act as anti-skid elements for the pallet, the portion of each panel at the space between each pair of walls 2 being formed with depressions (12), Fig. 7 (not shown), having orifices (13) which act as drains for surface water. Brackets 7 reinforce the pallet, which is also reinforced by hollow columns 6.
Patent GB-572622-A (GB)
Title: Improvements relating to control levers
IPC: E02F9/20
Filed: 1944-02-22
Abstract: 572,622. Locking levers. PRIESTMAN BROS., Ltd., and LAISTER, E. Feb. 22, 1944, No. 3299. [Class 80 (iii)] The usual pivoted hand-grip for actuating the latch of a lever moving over a notched quadrant is replaced by a twist grip. The lever a is mounted on a sleeve surrounding a . shaft d and carrying a disc e to which a transmission rod is connected. The lever works over a notched quadrant f, the notches being engaged by a latch g, the actuating rod k of which is connected at its upper end to a short crank m on a twist grip n mounted on a pin o projecting from the lever and serving as a handle. With this construction it is possible to mount two or more hand levers side by side, but of different lengths with their handles one over another.
Patent GB-595503-A (GB)
Title: Improvements in and relating to bins or like containers
IPC: A47J47/12
Filed: 1945-02-09
Abstract: 595,503. Bins. CARTNER, J., SHERWOOD, M. M. M., and LINWOOD, A. Feb. 9, 1945, No. 3334. [Class 26] [Also in Group XVII] A bin or container of sheet metal or wood &c. has an opening in a part-cylindrical face with a shutter 8, pivoted at 9 so as to fall to a fully-open or to a fully-closed position when moved past its dead-centre. Buffers of rubber &c. are fitted, e.g. to the leading edge of the shutter which may be stepped to accommodate them. Buffers may be fixed to a handle 14, to the bottom of the bin, or to a flange 12 at the top. The front of the bottom of the bin may be curved upwardly to retain crumbs, of bread stored in it. The body of the bin may be rectangular or part-cylindrical at the back.
Patent GB-1099963-A (GB)
Title: Traverse mechanism
IPC: B65H54/28
Filed: 1965-01-26
Abstract: 1,099,963. Traversing yarns. TOSHIBA MACHINE CO. Ltd. Jan. 26, 1965 [Jan. 27, 1964], No. 3368/65. Heading D1J. A yarn traversing arrangement comprising a first rotary member having wings 4 rotating in a circle L4 and a second rotary member having wings 1 rotating in the other direction in a circle L1 such that the yarn is traversed one way by one set of wings and traversed the other way by the other set of wings, is characterized in that the yarn passes over a guide part 6 that exerts sufficient friction on the yarn to prevent the yarn from returning in advance of a wing at the commencement of a fresh traverse. Alternatively the wings may have yarn accommodating notches to hold the yarn in contact with the wings. The package may be drum driven and the traversing arrangement may be between said drum and said yarn yarn guide 6.
Patent GB-347311-A (GB)
Title: Improvements in cathodes of vacuum electric tube devices
IPC: H01J9/04
Filed: 1930-01-31
Abstract: 347,311. Thermionic cathodes. ROBINSON, E. Y., Garvary, Dryden Road, Bush Hill Park, Enfield, Middlesex, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Bush House, Aldwych, London. Jan. 31, 1930, No. 3414. Drawings to Specification. [Class 39 (i).] The filamentary heater of an indirectly-heated cathode is coated with an insulating refractory compound and is then inserted into a separate refractory insulating sheath which supports a metallic cathode member. The coating prevents chemical action between the heater and the sheath and may consist of kaolin, aluminium oxide, or magnesia applied by dipping in a sludge or suspension in water or alcohol, or by painting or spraying. To refractories, such as aluminium oxide, there may be added a little kaolin or silica gel or agglomerants such as starch or gum tragacanth. In a modification, the heater may be coated by spraying with or dipping into a suspension of aluminium nitrate which is subsequently reduced to the oxide, or it may be coated with aluminium, magnesium or zinc which is subsequently oxidized by heating in air or steam at a high pressure. The metal coating may be applied by wire-drawing or by means of a Schoop spray or by dipping or by deposition. The sheath may consist of quartz or a low-grade porcelain. The heater may be U-shaped and housed within separate holes (Fig. 1, not shown) or in an elliptical hole (Fig. 2, not shown) in the insulator, or it may consist of a tungsten spiral, the turns of which are insulated from each other by means of the insulating coating. Specification 333,011, [Class 39 (i). Electric lamps, Arc &c.], is referred to.
Patent GB-1158087-A (GB)
Title: Method For Making A Transparent Image
IPC: G03G7/00
Filed: 1968-01-23
Abstract: 1,158,087. Printing from developed electrostatic images. RANK XEROX Ltd. 23 Jan., 1968 [23 Jan., 1967], No. 3434/68. Heading B6C. [Also in Division G2] A transparency is made by forming an unfixed developed electrostatic image, transferring the image to a transparent base provided with thin conducting layer which is subsequently removed by chemical treatment. In an example, a developed image is prepared using developer comprising glass balls coated with nitro cellulose as the carrier and carbon mixed with polystyrene as toner. Polyethylene terephthalate film vacuum evaporation coated with aluminium on one side was brought into close contact with the developed image to transfer the developed image to the uncoated side. The aluminium coating was then dissolved by sodium hydroxide to obtain a transparency. Polycarbonate, polyethylene or polyvinyl chloride may be used in place of polyethylene terephthalate.
Patent GB-1326332-A (GB)
Title: Sealing arrangement
IPC: F16J15/34
Filed: 1972-01-25
Abstract: 1326332 Seals FORSHEDA IDEUTVECKLING AB 25 Jan 1972 [26 Jan 1971] 3472/72 Heading F2B A seal between relatively rotatable inner and outer elements comprises a rubber ring 16, Fig. 1, having an outer fastening portion 18 for fixing the ring to the outer element, an intermediate flexible portion 17 and an inner sealing portion which is compressed axially between opposing surfaces 113, 114, the intermediate portion being flexible in the axial direction so that the contact pressures of the sliding sealing parts 111, 112 automatically adjust to the same value as each other, the sealing portion including a sealing lip having a surface which is funnelshaped and opens outwardly. The ridge 110 of the ring serves as a flinger. In Fig. 7, the outer fastening portion is vulcanized to an outer element 717 and the inner sealing portion is compressed axially to make sliding sealing contact with the walls of an inner element 716, the elements themselves forming a labyrinth seal. In Fig. 10, the sliding sealing edge 101 also serves as a valve to relieve grease. In Fig. 3 (not shown), the intermediate flexible portion is curved to permit radial movement of the sealing portion with radial movements of the shaft, the sealing portion being provided with a cylindrical guiding surface (317).
Patent GB-111028-A (GB)
Title: Improvements in Devices for Securing Hawsers, Ropes and the like.
Inventor: SANDFORD WILLIAM HERBERT
IPC: F16G11/04
Filed: 1917-03-12
Abstract: 111,028. Sandford, W. H. March 12, 1917. Addition to 107,636. Coupling.-The coupling described in the parent Specification 107,636, in which the rope &c. is gripped between the sides of a wedge and a tapered sheath, is modified in that the locking-bolt H passing through the sheath A and the slot B' in the wedge B is arranged to bear frictionally against the sides of the wedge and does not project beyond the outer faces of the sheath. The bolt H may screw into a nut H<2> or into the side of the sheath. A spring or coned washer M may be placed on the bolt H between the head H' and the wedge B. Holes A<4> may be provided in the sheath to allow a spike to be inserted into the slot B' in the wedge to hold the same retracted while the rope is being threaded around the wedge.
Patent GB-431629-A (GB)
Title: Improvements in and relating to reversing gears for marine engines
IPC: F16D21/08
Filed: 1935-02-04
Abstract: 431,629. Reversing-gearing for screw propellers. KJãR, V. A., 10, Ellinorsvej, Charlottenlund, near Copenhagen, and BRAAD, J., 1, Fiskerihavnsgade, Copenhagen. Feb. 4, 1935, No. 3640. [Class 80 (ii)] [See also Group XXXIII] In reversing-gear ing for screw pro pellers, the thrust of the screw is usec on both forwarc and astern drives to hold in one or other of two coi spring clutches 5 The coils 5 are connected at their outer ends to drums 1, 4, respectively, which are geared together to rotate in opposite directions. The coils are connected at their inner ends to two coned rings 6 loose in the ends of the drums. A double cone 2 slides with the propeller shaft 3 as it is slid axially by a manual lever 9. The ring 6 engaged turns with cone 2 so that the corresponding coil 5 is wound tight upon one or other of two drums 2<1> extending from the cone 2. The gearing may comprise a spur pair 7 and a chain pair 11, as shown. A set of three spur gears may replace the chain pair, or bevel gearing alone may be used. A modification is described in which the two operative parts of the cone 2 are separated in different planes, and the coils 5 are arranged one within the other.
Patent GB-728983-A (GB)
Title: Improvements in and relating to hypodermic syringes made of injection moulded plastic material
IPC: A61M5/31
Filed: 1953-02-09
Abstract: 728,983. Hypodermic. injection devices. SOC. D'EXPLOITATION DES SERINGUES INDUSTRIELLES S. E. S. I. Feb. 9, 1953 [July 18, 1952; July 18, 1952], No. 3642/53. Class 81 (2). A hypodermic syringe of injectionmoulded plastic is provided with a nipple, which is adaptable to receive a needle mount of anv size within a selected range, and a hollow plunger closed at its inner end and with an opening at its outer end which is provided with a removable plug, the cavity within the plunger being such that it can hold a supply of hypodermic needles. The plug 22 is externally threaded to fit an internal thread on the plunger 11. The plug 22 is also provided with a V-shaped groove which overlies the extreme end of the plunger 11. The inner end of the plunger is provided with an annular groove 17 in which fits an elastic ring 18 for providing a seal between the plunger 11 and the barrel 10. The needle-receiving nipple 14 is either offset (as shown) or coaxial with respect to the axis of the syringe. Several tapering stepped portions 14c, 14b, 14a form the nipple 14, each stepped portion being dimensioned so that it will fit a needle mount of a corresponding size. When larger needle mounts are used the narrower stepped portions may be cut off along lines x-x or y-y.
Patent GB-286199-A (GB)
Title: Improved method of repairing or reshaping joint elements or fish plates for railway rails
IPC: B21K9/00
Filed: 1928-02-06
Abstract: 286,199. Muller, M. Nov. 25, 1927, [Convention date]. Addition to 278,281. Reworking worn articles. - Dies for reshaping worn &c. fish plates, as in the parent Specification have the projection d recessed at i in the vicinity of the holes h. The projection need not extend the full . length of the plate and may be separate from the die and is preferably sectional.
Patent GB-362761-A (GB)
Title: Improvements in and connected with apparatus for providing pressure for beer and like supplies
IPC: B67D1/04
Filed: 1931-02-05
Abstract: 362,761. Compressed-air beer-delivery apparatus. BEACH, A. E., 2, Shawfield Street, Chelsea, London. Feb. 5, 1931, No. 3668. [Class 102 (ii).] Compressed air for raising beer from barrels o is compressed by a motor-driven compressor a into a high-pressure reservoir d, whence it passes by way of a reducing valve f and filters and traps h<1>, h<2>, h<3> to a low pressure reservoir g. From the low pressure reservoir the air passes by way of reducing valves il, i<2>, i<3> to pipes j<1>, j<2>, j<3>, inclined downwardly to sediment cocks l<1>, l<2>, l<3>, and fitted with pressure-equalizing vessels k<1>, k<2>, k<3> fitted with safety valves k<4>. The pipes jl, j<2>, j<3 >are connected to the barrels o by flexible tubes n leading to cocks m on the top of the pipes to prevent passage of sediment.
Patent GB-741833-A (GB)
Title: Improvements in or relating to rock drills
IPC: E21B17/00
Filed: 1953-02-10
Abstract: 741,833. Earth-boring apparatus. CARRUTHERS, C. J. D. May 10, 1954 [Feb. 10, 1953], No. 3683/53. Drawings to Specification. Class 85. Means are provided in a drill string to damp out the longitudinal and torsional vibrations set up in a drill string by the periodic impacts on the bottom of a borehole by the teeth of the roller cones of the earth - boring kit. The means comprise fundamentally a length of metal attached to the bit and slidably mounted on the lower end of the interconnected drill rods of the drill string, or attached either at the lower end of said drill rods, or at a distance from said lower equal to half the length or a multiple of said length of a fundamental harmonic of the longitudinal or torsional harmonies. The metal length extends for a distance equal to one quarter of the length of the fundamental harmonic of the longitudinal or torsional vibration, or for a fraction of this length corresponding to an order of another harmonic of said vibration. The unattached end of the metal length is free to move axially or circumferentially. One or more lengths of metal of a length determined by the other harmonies of the vibration may also be used and these shorter lengths may have splined extensions of such a length as to bring the combined effective length to a length equal to a quarter of the length of an harmonic of the next higher order of the other form of vibration than that for which the short length was designed to deal with.
Patent GB-398193-A (GB)
Title: Improvements in a candy and method of making the same
IPC: A23G3/42
Filed: 1932-02-08
Abstract: Candy is made by boiling a solutio<\>an of sugar and pectin until it sheets or strings, adding corn syrup and cane sugar in an amount containing about four times as much sugar as that of the original solution while continuing the boiling until the mix sheets or strings again, then adding a comparatively small quantity of an edible acid and finally pouring the mix into moulds where it congeals.  The edible acid may be tartaric, citric, malic or phosphoric acids. Alternatively candy may be made by boiling a solution of sugar and pectin, adding a quantity of grated fruit, e.g. pineapple, continuing the boiling until the mix sheets or strings, then adding corn syrup and cane sugar in an amount containing about four times as much sugar as that of the original solution while continuing the boiling until the mix again sheets or strings and finally pouring the mix into the moulds.  The candy may be cast into rings, wedges or other suitable shapes which may be coated in various ways, such as by sugaring, steam sanding (sugaring and exposing to hot steam to partially melt the sugar), crystallizing (dipping in sugar solution and drying), or coating with chocolate.  The sugar in the sugar and pectin solution which is first boiled is preferably corn sugar, and the proportion of corn sugar added as such and/or as corn syrup is preferably greater than the proportion of cane sugar.  The pectin is preferably prepared in a standardized form by diluting with sugar.