baber/WOPTO huggingface dataset:
Patent GB-577338-A (GB)
Title: Improvements in power driven guns or cannons
IPC: F41A19/27
Filed: 1944-02-18
Abstract: 577,338. Machine guns. PATCHETT, G. W., and EXACTOR CONTROL CO., Ltd. Feb. 18, 1944, No. 3042. [Class 92 (ii)] Relates to machine guns or cannon of the kind which are operated by an external source of power such as an electric motor 26 driving a crank shaft 25 which reciprocates a breech block 5 through the medium of a crank pin 23 and connecting-rod 8. According to the invention, the firing-pin 12 is operated, through a push-rod 15 housed in the connecting rod, by a cam or eccentric 22 fast with the crank pin. The invention is shown applied to a pair of guns driven by a single motor through a pair of crank arms arranged for firing the guns alternately. Fig. 3 shows a motor 26 which drives the crank shaft through the medium of clutch elements 46, 47 brought into engagement either by a handle 52 or by a rotary cam 45 operating a bell crank 53 thus enabling intermittent bursts of fire to be obtained. Spring plungers 35 prevent the full closing movement of the blocks under the action of the residual momentum after power is cut off. Specification 464,022, [Group XXVII], is referred to.
Patent GB-770358-A (GB)
Title: Improvements in apparatus for washing dampening rollers
IPC: B41F35/00
Filed: 1955-02-04
Abstract: 770,358. Printing-machines. SAUERBIER, K. H., UILING J., and UILING, B. K., [trading as VENNOOTSCHAP ONDER FIRMA J. UILING.]. Feb. 4, 1955 [Feb. 8, 1954], No. 3330/55. Class 100(2) Damping apparatus. - In apparatus for washing lithographic damping rollers by means of one or more grooved or ribbed washing rolls, each roll has one or more grooves or ribs which follow a course alternately changing direction so as to run to one side and the other of a circle or helix on the surface of the roll. The invention is stated to cause adequate compression and stretching of the textile cover of a damping roller by a single washing roll in contact therewith; a number of damping rollers may thus be arranged round a common washing roll for cleaning. A washing roll 2 may have endless ring grooves 7 of zig-zag form (Fig. 4), or a single sinuous but generally helical groove 8 (Fig. 6).
Patent GB-765246-A (GB)
Title: Process for the fractional distillation of petroleum hydrocarbon oils
Inventor: BARRY DONALD
IPC: C10G7/00
Filed: 1955-02-04
Abstract: <PICT:0765246/III/1> Distillate fuels and illuminating oils are obtained by fractionally distilling in a column of petroleum hydrocarbon and introducing a free oxygen-containing gas into a region where the temperature lies between 100 DEG C. and 250 DEG C., and recovering from a point above the region where free oxygen-containing gas is introduced, an improved distillate; distilling the residue from the column or a distillate taken from the column below the region wherein the gas is introduced in a second distillation column into which a free oxygen-containing gas is introduced in a region where the temperature lies between 100 DEG C. and 250 DEG C. and recovering from a point above the region wherein gas is introduced a second improved distillate.  In an example a Middle East petroleum crude oil was heated in furnace 1 and fractionated in column C1, air was introduced at a point A at the rate of 12 to 15 cubic feet per minute when the plant was processing 10,000 tons per day, at a point where the temperature was approximately 150 DEG C. In addition air was either introduced at the rate of 3 cu. feet per minute through point B in column C3 at a point where the temperature was 200 DEG C., or at the rate of 6-10 cu. feet per minute through point C into column C2 at a point where the temperature was about 225 DEG C.  The products which include gaseous paraffinic hydrocarbons, gasoline, light naphtha, heavy naphtha, kerosine, light gas oil, heavy gas oil and residual gas oils are free from lacquer precursors.  The fuel oils may have added anti-knock additives such as iron carbonyl, dicyclopentadienyl iron, tetra-ethyl lead, ethyl-trimethyl lead, diethyl-dimethyl lead, triethylmethyl lead and tetramethyl lead; halogen containing scavengers such as ethylene dichloride or dibromide, acetylene tetrabromide, hexachloropropyline, mono- and poly-, halopropanes, - butanes, and - pentanes, such as 2. 2. 3, - trichlorobutane and 2- chloro-2, 3 - dibromobutane, and the polyhalobenzenes and - alkylbenzenes such as the dibromotoluenes; and also antioxidants such as 2. 4. -dimethyl - 6 - tertiary butyl phenol, 2,6 - ditertiary - butyl - 4 - methyl phenol, N - phenyl - alpha - naphthyamine, N, N1 - dibutyl - para - phenylene diamine and hydroquinone.  The fuels may be blended with straight-run, thermally-cracked, or catalytically cracked gasolines, with aromatic hydrocarbons such as benzene and toluene or with volatile alcohols and ethers.
Patent GB-140171-A (GB)
Title: Improvements in and relating to crutches
IPC: A61H3/02
Filed: 1919-02-12
Abstract: 140,171. Dunne, M. C., and Gillies, A. Feb. 12, 1919. Crutches.-The user of a crutch with telescopic limbs, by manipulating a saddle or seat, is enabled to shorten the crutch to clear the ground when it is being moved forward to a new position after a step has been taken. The crutch comprises a pair of telescopic arms for supporting both armpits. A swinging seat 5 is pivoted in the centre of cross-bars 19, which are in turn trunnioned at 20 in the crutch members. Links 18, pivoted at 17 to the upper members of the telescoping system, are pivoted also at their lower ends to the centres of other links 6, which in turn are pivoted at 12 to the lower telescopic members. The pivots 12 can slide in the slots 13 to permit of the telescopic action. The seat is connected by springs 15 to the links 6 as shown, or to the links 18. The user, when in the upright position with his weight resting on the crutch, swings the seat forward to take a step, thus tensioning the springs. He then transfers his weight to the advanced leg or legs resting on the ground. As soon as the crutch is relieved of the weight, the springs pull the links forward, with the result that the pivots 12 rise and telescope the crutch members. The shortened crutch is then swung forward until it passes the seat, and thus again tends to tension the springs. The springs then pull the links backward into a position just behind the vertical, where the abut against stops 11, and re-extend the, crutch parts in so doing. The user then transfers his weight to the extended crutch prior to taking another step.
Patent GB-592750-A (GB)
Title: Improvements in or relating to electron discharge apparatus and electrodes for use therein
IPC: H01J25/12
Filed: 1944-02-25
Abstract: 592,750. Discharge apparatus. WESTERN ELECTRIC CO., Inc. Feb. 25, 1944, No. 3578. Convention date, Oct. 31, 1941. [Class 39 (i)] An electrode structure for varying the speed of a beam of electrons in an electron discharge device, comprises a central grid portion G3 and an outer annular portion P3 shaped to cause the electric field in the vicinity of the grid to be uniformly distributed. The annular portion may be constructed as shown but a simple short cylinder will serve sufficiently well. The structure is shown in a velocity modulation apparatus in which the beam from an electron gun passes through an input gap G1, a drift space, and an output gap G4. The electrode G3 retards the electron flow in the drift space and permits it to be made of shorter length than would otherwise be the case.
Patent GB-1175591-A (GB)
Title: Improvements in or relating to Lifts
Inventor: WRIGHT ROBERT ANDREW
IPC: B66B9/04
Filed: 1967-01-24
Abstract: 1,175,591. Hydraulic lifts. GENERAL ELECTRIC & ENGLISH ELECTRIC COMPANIES. 24 Jan., 1968 [24 Jan., 1967], No. 3586/67. Headings B8H and B8L. A ship-board lift installation incorporates a lift platform 1, with a turntable 18, movable vertically in guides 2 between different decks of the ship and comprises a lift driving arrangement with chains 3 to support the lift platform 1 and which pass over sprockets 4, the lower sprockets being driven by hydraulic motor units 5 synchronized by a shaft 8. The motor units 5 are supplied with pressure fluid by reversible main variable delivery pumps 9 themselves driven by electric motors 10. The driving system includes an hydraulic accumulator 11, consisting of vertical cylinders 12 providing an oil reservoir with a common feed pipe connected to their lower ends, their upper ends being connected to pressurized gas reservoir 13 consisting of vertical cylinders 14 of air or nitrogen. The arrangement is such that the pressure of the fluid at the pump inlet, when the lift platform 1 is in its highest position, Fig. 4, is at least 60% of the pressure at that inlet when the lift platform 1 is in its lowest position, Fig. 3. Lowering of the lift platform 1 causes oil to be fed from a storage tank 15 back into the accumulator 12, Fig. 5. Figs. 3 to 5 refer to an unloaded lift platform 1, Figs. 6 to 8 (not shown), illustrate conditions with a loaded platform.
Patent GB-913393-A (GB)
Title: A vacuum evaporator
IPC: A23L2/10
Filed: 1961-01-31
Abstract: <FORM:0913393/III/1> An evaporator, for concentrating fruit juices and other heat-sensitive liquids under vacuum, comprises an upright-conical channel 4 of annular cross-section connected in series, by transition channel 6, with an inverted-conical channel 5 of annular cross-section, the channels are arranged coaxially in a cylindrical heating-jacket 1, and the gap between the metal walls 7 and 8, bounding the channels, is very narrow so that the liquid is spread out in a thin sheet as it flows through the channels. The bottom end of channel 4 opens into annular duct 11 which is supplied with feed liquid.  The bottom end of channel 5 opens into receiver 12 which is connected by conduit 13 to cyclone 2.  The cyclone is connected, via pipe 14, with a vacuum pump.  The concentrate is discharged through outlet 18.  An evaporator is also described having a second pair of conical channels connected in series with channels 4 and 5.  Specification 789,710 is referred to.
Patent GB-491197-A (GB)
Title: Improvements in or relating to processes for the production of regenerated leather
IPC: B29C37/00
Filed: 1938-02-05
Abstract: Regenerated leather sheet, formed from disintegrated leather scraps or cuttings and dispersions of rubber, is treated with glycerol, rubber latex, aqueous dispersions of metallic oxide such as titanium dioxide, or dye solutions, by contacting it with the surface of a roller coated with the liquid, as by being partially immersed in a liquid bath.  The roller may be rotated against the direction of movement of the sheet, a doctor blade being employed to scrape off excess of liquid.  Several treatments may follow in succession.  The liquids may contain a wetting agent, for instance, the salt of a sulphonated alcohol.  The sheet may be partially dried before treatment.  Specifications 247,089, 315,413, [both in Class 70], 365,564, 422,027, 422,028, and 464,905 are referred to.
Patent GB-489971-A (GB)
Title: Improvements in rotary liquid flow meters
IPC: G01F13/00
Filed: 1937-02-08
Abstract: 489,971. Rotary meters. KRUSPI, F. Feb. 8, 1937, No. 3730. [Class 110 (ii)] A rotary meter embodied in an apparatus for dispensing measured quantities of a liquid, comprises a vane-wheel 26 on a spindle 18 with radial vanes 27 operating in a passage bounded by a bush 25. The inlet passage is helical in shape so that liquid in a space 16a is given a whirling motion before entering the vane-wheel. The recording mechanism is contained within a case 30. The passage of liquid to the meter is controlled by a valve 4 which is slidable on a spindle 2. A spring 3 holds the valve 4 on a seat 5 and also a sealing member 6 on the head 7 of the spindle guide, while a spring 8 is compressed. Upon moving a lever 1 to the left (Fig. 1) the valve 4 remains on its seat under pressure of the spring 8, until a shoulder 2a presses the valve to the left. During this short movement of the spindle 2, conduits 9 and 10 are closed. Air is supplied through these conduits when the spindle is positioned as in Fig. 2, to the interior of the apparatus for the rapid discharge of the liquid remaining at the end of the operation. When the valve 4 is open, the spindle 2 covers the conduits 9, 10. An automatically locking spring-pressed pin 14 enters a recess in the lever 1 when the pin and recess are opposite each other. A knob 13 is pressed inwards to force out the pin 14, to release the lever 1. After leaving the vanewheel 17, the liquid passes into a chamber 20 which is sub-divided by four radial partitions 20a. The lower end of the spindle 18 rests in a bearing 19. A conical bush 24 is fitted into a tapering housing 23, to obtain a good joint between the two members. Air intake ducts 29 prevent any liquid entering the spindle bearing in the member 22.
Patent GB-1494151-A (GB)
Title: Bipolar transistor
IPC: H01L21/331
Filed: 1975-01-28
Abstract: 1494151 Bipolar transistors RCA CORPORATION 28 Jan 1975 [2 May 1974] 3736/75 Heading H1K A planar bipolar transistor 10 is formed by ion implantation in a single-crystal semi-conductor layer 12 deposited on an insulating substrate 16 and formed as a mesa. As shown for an NPN transistor, collector contact wells 22 are ion implanted into a top portion 20 of the layer 12 and are extended down into a lower portion 18 of lower resistivity by a first annealing step. Similarly, elongate base contact wells 26, base region 28 and emitter 30 are also formed by ion implantation using SiO 2  masking layers 42, 44, 46, 48 having openings defined by photolithography and etching steps. Metal contacts are evaporated on the various contact regions and these may be of Al or layers of Au on Cr. The transistor is etched to form an isolated mesa structure and several such transistors can be produced by forming grooves through the layer 12 across the structure (shown end-on) to subdivide the elongate regions. Leakage current performance is stabilized by further ion implantation of guard regions at the mesa edges which do not intersect the emitter-base junction. The epitaxial layer 12 is from 0À5-5À0 Ám. thick and is vapour deposited on to a sapphire or spinel substrate 16.
Patent GB-175619-A (GB)
Title: Improved apparatus for testing the accuracy of toothed wheels
IPC: G01B5/20
Filed: 1922-02-08
Abstract: 175,619. Soc. Anon. A. Saurer. Feb. 18, 1921, [Convention date]. Surface and outline gauges.-In apparatus for testing the accuracy of toothed wheels, the means for transmitting motion to the indicating mechanism is arranged to include at least one lever mechanism having a leverage adjustable in accordance with the diameters of the toothed wheels to be tested. Upstanding spindles 3, 21 are adapted to receive the wheels to be tested, the bearings for the spindle 21 being carried in a slide 25 moved by a screw 24. The spindles carry at their ends inside the casing 1 friction wheels 5, 26. The wheel 5 engages a coupling-bar 6 having an enlarged head 9. A similar bar 16 is also provided with an enlarged head 9 and engages a friction wheel 17 on a spindle 18 passing through a hollow spindle 29 and carrying at its upper end a needle 19. Between the coupling-bars 6, 16 is arranged an adjustable lever device, 12, 13. The arms 12, 13 are arranged to slide in a block 34 pivoted at 14 and carry at their ends rollers 11, 15 engaging the heads 9 respectively of the coupling-rods 6, 16. The friction wheel 26 engages a rod 27 which also engages a friction wheel 28 carried by the hollow spindle 29 which carries at its upper end a graduated disc 30. All the sliding rods are guided between spring pulleys. Scales are provided at 32, 23 for the slide 25 and at 35, 36 for the arms of the lever device. In use, a standard wheel is placed on the spindle 21 and the wheel to be tested on the spindle 3. The scales 35, 36 are then adjusted to give the lever arms the same ratio as the diameters of the wheels as given by the scales 32, 33. Since the pointer 19 and disc 30 are arranged to travel in the same directions, there should be no relative movement between them when the gears 4, 20 are turned if the gear wheel 20 is correct. The heads 9 could be slotted or the rollers 11, 15 kept in engagement with them by springs so that the gear wheels may be turned in either direction. The levers 12, 13 could be arranged at an angle instead of as shown or a multiple system of adjustable levers used. The spindle 3 may be arranged to slide and the other spindle kept fixed, and rack gears or flexible steel bands could be used instead of friction gears; or again the line joining the axes of the spindles 3, 21 could be arranged parallel with the coupling-bars instead of as shown.
Patent GB-451655-A (GB)
Title: Improvements in and relating to the armouring of the lead sheaths of electric cables subject to internal pressure
IPC: H01B7/22
Filed: 1935-02-05
Abstract: 451,655. Cables. CABLON, Ltd., 296, High Holborn, London. Feb. 5, 1935, No. 3744. Convention date, Feb. 5, 1934. [Class 36] An armouring for the lead sheaths of cables which are maintained under internal pressure, comprises a metal band winding or windings and a tubular body consisting of a multilayer paper or paper-like band winding provided on the outside of the metal winding or windings, the relative thicknesses of the metal band or bands and multi-layer paper or paperlike band winding being such that the multilayer paper or paper-like band winding keeps the metal band or bands firmly pressed and prevents untwisting thereof while the metal band or bands prevents or prevent folds being formed in the paper or paper-like winding. The paper-like band may be of asbestos or a polyvinyl compound. The bands may abut or overlap and may be coated or impregnated with asphalt or lacquer or the completed armouring may be impregnated. The lead sheath, prior to armouring, may be asphalt coated. The metal bands may be solid or perforated or formed or wires or wire mesh. A paper or other winding of one or more layers may be provided beneath the metal band or bands, such winding being preferably in the opposite direction to the multi-layer winding. Metal and paper bands are preferably applied in the same operation ; alternatively, the metal band or bands may be wound together with a paper band or bands in overlapping manner and the multi-layer winding applied thereon separately. In the case of gas-filled cables, one or more gastight layers such as of oilimpregnated linen, caoutchouc or cellulose derivatives in the form of a band or as a lacquer coating, may be provided.
Patent GB-563955-A (GB)
Title: Improvements in scavenging systems for two-stroke-cycle internal combustion engines
IPC: F02B25/00
Filed: 1944-06-05
Abstract: 563,955. Two-stroke engines ; inlet and exhaust systems. BUTLER, J. F., PURDAY, H. F. P., MICKELSEN, V., and REBBECK, SIR F. E. June 5, 1944, No. 3776/43. [Class 7 (ii)] In a two-stroke engine in which a scavenging system is arranged to utilize the energy of the exhaust gases to induce a fresh charge into the cylinders, a scavenge chamber e surrounding or adjacent to piston-controlled ports f or valves in one or more engine cylinders is connected to an induction passage d whose " effective volume " is not less than the square of the cylinder volume divided by the sum of the volumes of the cylinder and the chamber e. A mathematical expression for the " effective volume " is given. The passage d is connected to the atmosphere or to a chamber c in communication with the outlet of a positive-displacement, centrifugal or axial blower a. In the system shown diagrammatically in Fig. 1, the system includes exhaust valves h and pipes j, chamber k and outlet pipe m, the " effective volume " of the exhaust pipes being of the same order as, or larger than, the cylinder volume. Each pipe. d and chamber e may supply one or several cylinders, there being an exhaust pipe j to each cylinder and a chamber k and pipe m common to all-the cylinders or to a group of cylinders. In the construction shown in Fig. 4, chambers 5 around the inlet ports 6 of two pairs of cylinders are supplied with air from a blower through a pipe 2, chamber 3 and helical passages 4 around the chamber 3. The exhaust from valves in the cylinder head passes through similar helical passages to an exhaust chamber and outlet pipes &c. In a modification, Fig. 5, chambers 15 around the inlet ports 16 are supplied from the air chamber 11 through pipes 12, 13 having guide plates 14 in their bends. The diameters of the pipes 12, 13 are different, to correspond to the different number of cylinders 17 fed from the chambers 15. In a further form, Fig. 6, chambers around the inlet ports are supplied from the air chamber 20 through pipes 21 coiled in a plane parallel to the longitudinal axis of the engine.
Patent GB-817703-A (GB)
Title: An electric current converting system
IPC: H02M1/26
Filed: 1956-02-07
Abstract: 817,703. Converting. LICENTIA PATENTVERWALTUNGS-G.m.b.H. Feb. 7, 1956 [Feb. 7, 1955], No. 3813/56. Class 38 (2). [Also in Group XXXVII] A converting system comprises a three-phase transformer, the secondary winding of which is arranged in open star connection and is connected by commutating reactors to a mechanical converter arranged in sixphase bridge connection with, in each phase, a pair of fixed contacts 15 engageable by a moving contact 14 having a stroke of not more than 1 mm., and preferably of 0.5 mm. or less.
Patent GB-368352-A (GB)
Title: Improvements in and relating to reheating furnaces for use in the rolling of bands and sheets of metal
IPC: C21D9/68
Filed: 1930-11-27
Abstract: 368,352. Metal-heating furnaces. BROEMEL, L. E., 10, Richardstrasse, V÷lklingen, Saare, Germany. Nov. 27, 1930, No. 3823/32. Convention date, Nov. 27, 1929. [Class 51 (ii).] Metal bands or sheets are rolled up during reheating in a furnace H on a skeleton drum formed by lined end cheeks C connected by heat resisting bars D. The sheets are fed in through the opening A and are discharged by reversing the rotation of the drum, the discharge being effected through the opening A or G according to the position of the closure members B, F. The furnace is heated by burners E or electrically, and is transportable so that it can be moved from one set of rolls to another.
Patent GB-739425-A (GB)
Title: Improvements in shelf supports
IPC: A47B57/56
Filed: 1954-02-10
Abstract: 739,425. Shelf-supporting brackets. ATTWOOD, C. W. Feb. 10, 1954, No. 3901/54. Class 52 (5). A shelf-supporting bracket comprises a resilient U-shaped element 15 having hooks 15A embracing inwardly directed flanges 10A along a slot in a channelled upright member 10 and abutments 15B resting against the slotted face 10B of the channelled member. The hooks 15A are provided with projections 16 abutting the inner edge of the flanges 10A to prevent accidental displacement of the brackets and projections 17 to penetrate wooden shelves, or enter apertures in metal shelves, supported by the bracket.
Patent GB-1332271-A (GB)
Title: Flight instrument for peripheral vision stimulation
IPC: G01D13/08
Filed: 1972-01-27
Abstract: 1332271 Aircraft instruments SOC NATIONALE INDUSTRIELLE AEROSPATIALE 27 Jan 1972 [28 Jan 1971] 3950/72 Heading B7W An instrument arrangement intended to provide, in blind flying conditions, peripheral vision stimuli which alert a pilot when he is departing from a predetermined flight path comprises in proximity to an instrument panel 23 and windscreen 24 two pairs of contrarotating rollers 10 to indicate heading departure and a further pair 110 to indicate departure in pitch. Each unit, Fig. 6, comprises rollers 1 and 2 having surface markings formed by circumferential lines 6 and lines 5, Fig. 1, which visually disappear by stroboscopic effect when the rollers are rotated at a certain speed. The rollers are driven in directions f4, f5, Fig. 6, through gearing from motors 7, 8 energized via voltage variometers 16, 17 from input lines 14, 15. A computer unit 18 compares instant with desired flight parameters to deliver a signal to an amplifier 19 which delivers appropriate voltages to variometers 16, 17 which cause a motor 7 or 8 to slow down so that lines 5 become visible to provide a peripheral vision warning to the pilot.