baber/WOPTO huggingface dataset:
Patent GB-119078-A (GB)
Title: Improvements in Torpedo Guards for Vessels.
Inventor: MILLER LOUIS
IPC: B63G9/00
Filed: 1917-09-19
Abstract: 119,078. Miller, L. Sept. 19, 1917. Torpedo nets and screens.-A torpedo guard for vessels comprises a series of sections 2, 4 hinged to the side of the vessel and raised and lowered by ropes 28 and winches 27. Each section is formed of a. number of vertical and horizontal bass, as shown, the net 12 being secured to the outer ends of the bars 8. The ends of the nets on alternative sections have overlapping extensions 18, as shown in Fig. 5. A second net 6<1> is supported by the intermediate rods 6. The sections are provided with eyes 20 pivoted on pins 21 secured to the hull, and bracing cables and chains 23, 25 are provided. The detents 31 of the winches may be operated simultaneously by means of a lever 34 to allow the sections to fall together into position. The outer nets are formed of reinforced cable strands woven to form a yieldable buffer, as shown in Fig. 8.
Patent GB-252731-A (GB)
Title: Improvements in or relating to dynamo-electric machines
IPC: H02K23/02
Filed: 1926-05-27
Abstract: 252,731. Maschinenfabrik Esslingen. May 28, 1925, [Convention date]. Exciting; dynamos, regulating.-In a constantvoltage dynamo in which the excitation is by means of the combination of the main field with a field produced by currents flowing between shortcircuited brushes, each field pole consists of two parts separately excited to the same polarity by a coil on each part so arranged that with variations in the speed or load, or both the ratio of the magnetizing forces due to 'the coils varies. In the form shown in Fig. 2, the main excitation is given by two coils a, b, the former being connected directly across the main brushes d and the latter across the same brushes but with the inclusion of an iron wire resistance c to maintain the current constant. Fig. 3 shows the arrangement of the coils a, b in slots in the field frame, the slots g opposite the shortcircuited brushes e giving the requisite commutating conditions. Commutating-poles h are provided for the main brushes d. Compensating or compound windings may be provided or a standard exciting winding may be connected across the terminals or in series with either of the coils a, b or with a resistance varying with current or voltage and arranged to assist or oppose the fields due to the current in the windings a and b. The Specification, as open to inspection under Sect. 91 (3) (a), shows a form in which the constant current in the coil b is obtained from an independent battery and it also states that the coils in series with the windings a or b may have their axes in any desired direction. This subject-matter does not appear in the Specification as accepted.
Patent GB-1372934-A (GB)
Title: Method for determining the amplitude and or the direction of  incidence of two hf oscillations of different frequencies  arriving at a receiver
IPC: G01S3/14
Filed: 1972-03-22
Abstract: 1372934 Radio direction finders LICENTIA PATENT-VERWALTUNGS GmbH 22 March 1972 [23 March 1971] 13482/72 Heading H4D A method of determining the amplitude and/or direction of incidence of two oscillations of different frequency using a crossed directional antenna system, comprising sampling the magnitudes of the oscillations when the antennµ voltages are in phase, forming half the sum and half the difference from two successive samples from the same antenna and finding the direction and/or amplitude of the two oscillations from the two half sums and two half differences respectively. In a Watson-Watt two-channel D.F., the tangent of one angle of incidence is found from the quotient of the two sum signals above from the two channels and the quotient of the two difference signals yields the other angle of incidence. The incident amplitudes are found by squaring and adding the sums and differences respectively. The calculation is instigated by a phase comparators which indicates that the two antennµ voltages are in phase. The calculation may be done digitally and the two separated oscillations displayed on separate oscilloscopes. The system is stated to be useful where the results need to be printed out or remotely transmitted.
Patent GB-1593348-A (GB)
Title: Device for winding a material onto a bobbin
IPC: B65H59/00
Filed: 1978-04-06
Abstract: The drive motor comprises a rotary body (4) and an armature (5). The rotary body (4) is provided with permanent magnets on the end face near its circumference. The armature (5) is arranged coaxially at a distance from the rotary body (4). The armature (5) contains ferromagnetic material. The rotary body (4) and the armature (5) are arranged at a fixed axial distance from one another. At least one pivoting part (17) can be introduced into the axial gap between the rotary body (4) and the armature (5). The pivoting part (17) consists at least partially of ferromagnetic material and is connected to a roller (21) mounted on the thread-detector dancing arm (20). A variation in the winding speed without a relative axial displacement of the drive motor and bobbin is thereby possible. <IMAGE>
Patent GB-167603-A (GB)
Title: Improvements in and relating to two cycle motors
IPC: F02B75/02
Filed: 1920-05-17
Abstract: 167,603. Hutchinson, J. May 17, 1920. Valve-gear; regulating.-In an engine having oppositely-moving pistons 26, S, which reciprocate one in the other, long exhaust ports 16 are provided in the wall of the outer piston S so that the burnt gases may commence to escape when the pistons have completed, e.g. one-half their working strokes. Pump charges of combustible mixture are drawn through a valve V into a chamber 32 above the head of the piston S, the compressed charges being transferred to the combustion space C when ports 11 in the wall of the cylinder register with ports 15 adjacent the head 14 of the outer piston. To assist the opening and closing of the valve V, the stem 37 of the valve is formed with yielding fingers which bear upon a spindle 41 carried by the head 14 of the piston S. Frictional contact between the fingers and the spindle opens and closes the valve. To cut a cylinder out of action on a multicylinder engine, the pump admission valve may be held to its seat by a hand-actuated spindle 46 carrying a cam 47 which engages the underside of the valve.
Patent GB-1026543-A (GB)
Title: Improvements in or relating to a method and apparatus for shifting the phase of low frequency oscillations
IPC: H03H11/22
Filed: 1962-04-09
Abstract: 1,026,543. Pulse circuits. SERVOMEX CONTROLS Ltd, and R. MUDIE. April 4, 1963 [April 9, 1962], No. 13557/62. Heading H3P. [Also in Division H2] A method of shifting the phase of a lowfrequency triangular wave II comprises rectifying the wave II in both senses so as to provide double-frequency triangular waves IV and V which are added to a square wave I in such a way as to produce a triangular wave VI shifted in phase by 90 degrees relative to the first triangular wave II. As shown in Fig. 5, triangular wave II is inverted by amplifier 12, thus providing waveform III. The positive half-cycles of waveforms I, II and III are added together by means of diodes 18, 19, 28. The negative half-cycles are added together by means of diodes 21, 22, 30. The two resulting waveforms are added by means of resistors 32, 33 and inverted by amplifier 36, giving waveform VI. This waveform is also inverted by amplifier 39 and the resulting four quadrature triangular waves are fed to the quadrature taps of a continuous circular potentiometer so that a triangular wave of adjustable phase is available from a rotary tapping. The triangular waves may be converted into sine waves before or after application to the circular potentiometer.
Patent GB-528857-A (GB)
Title: Improvements in electric furnaces
IPC: H05B3/66
Filed: 1939-05-06
Abstract: 528,857. Electric resistance heaters; electric furnaces. DEHN, F. B. (Lindberg Engineering Co.). May 6, 1939, No. 13614. [Class 39 (iii)] Resistance elements of tubular form are so mounted and arranged in a furnace that .they serve as radiators of heat, and as flues for the convection and circulation of air or other gases throughout the chamber. The elements may be of straight vertical form 26 or of arched form 27, so as to follow the curvature of an arched ceiling. The lower ends of a pair of elements are welded to a conductive bracket-plate 28, while the upper ends of the same tubes are welded to adjacent plates 29 which are insulated from one another, so that a set of tubes is connected in series. The tubular heating elements are formed of resistance alloy, such as 80 per cent. nickel and 20 per cent. chromium. Similar elements 24, for radiation only, are arranged in the floor.
Patent GB-873951-A (GB)
Title: Improvements in or relating to a method of combating slime-forming micro-organisms in industrial water
IPC: C02F1/50
Filed: 1960-04-19
Abstract: Slime-forming micro-organisms in water &c. used in the paper or textile industries are reduced or destroyed by adding to the water, continuously or batchwise, 5 to 50 p.p.m. of one or more ether-aldehydes of the formula <FORM:0873951/VI/1> where R is an hydrocarbyl group and R1 an hydrogen atom or an hydrocarbyl group, preferably an alkyl group of less than 6 carbon atoms, e.g. a b -alkoxy-, or a b -alkenyloxy-propionaldehyde.
Patent GB-439542-A (GB)
Title: Apparatus for collecting saliva in dental surgery operations
Filed: 1935-05-09
Abstract: 439,542. Saliva ejectors. GRUNEWALD, H., 8, Rue ThÚrÞse, Paris. May 9, 1935, No. 13720. Convention date, July 26, 1934. [Class 81 (ii)] In a dental apparatus comprising a number of suction ducts all connected to a common suction tube, the conduits are provided at their ends with saliva catching members covering the ends of the salivary ducts. The member b for covering the ducts underneath the tongue is connected to a main suction tube a, and two members f, adapted to cover the ducts above the jaws, are connected by tubes d, d<1> through an air-tight ball-and-socket joint c to the main conduit. The members b, fare formed as metal casings with rubber linings adapted to cover the ducts, and the rubber is extended through the metal to form studs b <1>, b<11>, f<1> adapted to hold the rubber in the metal member and in the case of the members f, to hold the cheek apart from the teeth. The members f may be replaced by pivoted stoppers e when not required. The apparatus is held in position by a chin rest g carried on pins j, j <1> slidable in holes in plate h secured to the tube a and carrying a nipple i for the attachment of a tube leading to a pump or water-operated suction apparatus.
Patent GB-1250055-A (GB)
Title: Improvements in relief valves
Inventor: MARTIN MALCOLM
IPC: F16K17/04
Filed: 1969-03-15
Abstract: 1,250,055. Valves. MALCOLM MARTIN (ENGS.) Ltd. 10 Feb., 1970 [15 March, 1969], No. 13737/68. Heading F2V. Relief valve comprises a seat member D slidably mounted in a valve body E, and a spring-loaded valve member H having a sealing part C engaging the seat. Normally, the valve member engages an abutment surface K so that spring loading pressure on the part C is relieved. On excess pressure occurring at the inlet 6, the seat moves along with the valve member until arrested by a flange 4, whereafter the pressure is relieved. The stem of the valve member slides as shown in a screwed spring adjusting block H.
Patent GB-424122-A (GB)
Title: Improvements in or relating to the ventilation of motor vehicles
IPC: B60J1/14
Filed: 1933-05-12
Abstract: 424,122. Windscreens. TERNSTEDT MANUFACTURING CO., 6307, West Fort Street, Detroit, Michigan, U.S.A.-(Assignees of Simpson, E. G., and Fisher, A. J.) May 12, 1933, Nos. 13821 and 13822. Convention dates, June 20, 1932 and Nov. 28, 1932. [Class 103 (ii)] [See also Group X] A deflecting windscreen for a motor vehicle comprises a screen 4 carried on pivots in its upper and lower edges and actuated by an irreversible regulator 75 preferably of the worm and worm-wheel type, Fig. 18, and is combined with a sliding window 3 having a frame 9 of H or like section adapted to engage the pivoted window when both are closed. The ball-and-socket pivots of the screen 4 have a spring-pressed clamping member 22 engaging the pivot 17, Figs. 5 and 6. A weather strip of moulded rubber with a covered sponge-rubber insert 50 and with flanges to engage the shutting edges of the pivoted sash is mounted on the frame. The sash member 9 is inclined and recedes from engagement with the pivoted screen during the initial opening movement and an extension of this member engages a guide in the well. A friction clamp comprising a screw-adjusted spring-pressed clamp 90, Fig. 22, is provided to prevent vibration of the pivoted panel. In the rear of the vehicle, a second pivoted panel and regulator therefor are preferably provided, the ventilation being controlled by the combined use of the front and rear pivoted panels.
Patent GB-475576-A (GB)
Title: Improvements relating to a device for serving measured quantities of food or other material
IPC: G01F13/00
Filed: 1936-05-16
Abstract: 475,576. Screw - conveyers. SHAW, A. G., PAGE, G. E., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. May 16, 1936, No. 13934. [Class 78 (i)] Apparatus for serving food comprises a hopper 1 having at its base a screw-conveyer 4 adapted to be rotated intermittently through a manual or pedal control and a ratchet mechanism to deliver measured quantities of food through a delivery opening 7 on to a plate 8. The hopper may be divided and each division provided with a conveyer so that two or more different kinds of food may be delivered simultaneously.
Patent GB-849044-A (GB)
Title: Process for removal of metallic catalyst residues from hydrocarbon polymers
IPC: C08F10/00
Filed: 1958-05-01
Abstract: Metallic catlyst residues are removed from polymers of terminally unsaturated olefines, e.g. polythene, formed with a catalyst comprising a compound of a transition metal, e.g. Ti, Zr, Cr, Mo, W, Ce, Nb, or Ta, and an organo-metallic compound, or a metal hydride, or an alkali metal, by introducing an aqueous hydrated colloidal silica dispersion into an inert hydrocarbon medium, e.g. cyclohexane, containing the polymer, at a temperature above 125 DEG C., and filtering the polymer solution at a temperature above 125 DEG  C. The polymer in solution as prepared, before treatment with the silica dispersion, may be heated at a temperature of 175 DEG -225 DEG C. under sufficient pressure to keep the solvent in the liquid phase. The polymer can be separated from the solution by distillation and the molten polymer extruded into sheets, ribbons or rods.  In an example a polythene solution is made by reacting ethylene in the presence of cyclohexane and a catalyst formed in situ consisting of titanium tetrachloride, vanadium oxytrichloride, and aluminium triisobutyl and the solution purified by heating it to 225 DEG C. then violently agitating it with an aqueous dispersion containing 25% hydrated, colloidal silica and filtering the mix.
Patent GB-561267-A (GB)
Title: Improvements in or relating to lift valves
IPC: F16K1/36
Filed: 1942-10-06
Abstract: 561,267. Valves. TEBBS, A. L., and NICHOLLS, S. P. Oct. 6, 1942, No. 13985. [Class 135] A screw-down valve of the kind provided in domestic and other water installations has a valve washer g separate from the actuating spindle, backed by a wear resisting plate f and housed in a removable cage a, the bottom of which forms the valve seat. The seat is provided with a central inlet port c surrounded by a series of outlet ports all of which ports are adapted to be closed by the washer when the actuating spindle is screwed down. The cage, which is held in place by the usual detachable bonnet, is formed with a spigot l adapted to engage the usual seat aperture in the valve body with a surrounding packing washer k engaging the seat. The cage also has a pair of diametrically opposed holes e to facilitate its removal.
Patent GB-553028-A (GB)
Title: Radio receivers
IPC: H02M1/10
Filed: 1941-10-31
Abstract: 553,028. Wireless receiving apparatus. PHILCO RADIO & TELEVISION CORPORATION. Oct. 31, 1941, No. 14029. Convention date, Nov. 16, 1940. [Class 40 (v)] In a radio receiver the radio frequency current due to stray capacitance between the chassis and a high potential radio frequency portion of the receiver is neutralised by a condenser connected between the chassis and one conductor of the supply mains. The Figure shows a super heterodyne receiver comprising a tuned aerial circuit 1, frequency converter 2, I.F. stages 8, I.F. output transformer 9 coupled to a detector 10 and audio-frequency stages. A.C. or D.C. mains feed the cathode heaters direct, and through a rectifier 11 and smoothing circuit 12, 13, 14 supply the anode potentials. The common negative anode supply lead 15 is connected to the chassis by a condenser 17 the capacity of which is limited in the interest of human safety. As a result any highfrequency potential across 17 will cause a feed-back into the grid-cathode circuit of the frequency converter. Owing to the large overall gain of the receiver this feed-back may be very considerable as the chief source of high-frequency current in 17 is due to the capacity 18, 19 between the chassis and the windings 20,21 of the I.F. transformer 9. The currents through 18 and 19 may be made equal in amplitude and opposite in phase either by addition of a suitable capacity 24 or by adjusting the position of one or both of the windings 20, 21 relative to the chassis, and by choosing the degree of coupling of the windings so that the resultant current through 17 is zero, thus eliminating feed-back.
Patent GB-385515-A (GB)
Title: Rectifiers
IPC: H01L21/16
Filed: 1932-05-18
Abstract: 385,515. Static contact rectifiers. HAMBUECHEN, C., Belleville, Illinois, U.S.A. May. 18, 1932, No. 14079. [Class 37..] Cuprous or cupric sulphide discs are treated with iodine dissolved in alcohol to form a coating of copper iodide. Magnesium oxide may be added to the solution of iodine, copper iodide and magnesium iodide being formed. The treated discs are assembled with elements of aluminium or magnesium to form rectifying unit. The coating for the sulphide discs may be prepared by mixing equal parts of finely ground copper sulphide and iodine in alcohol. The rectifier may be " formed " under a pressure of three hundred pounds, a further pressure of three thousand pounds being applied for working conditions.
Patent GB-456879-A (GB)
Title: Apparatus for decorticating and cleaning vegetable fibres
IPC: D01B1/10
Filed: 1936-05-18
Abstract: 456,879. Decorticating vegetable fibres. KRUPP GRUSONWERK AKT.- GES., F., Buckau, Magdeburg, Germany. May 18, 1936, No. 14092. Convention date, July 9, 1935. [Class 120 (i)] In apparatus for decorticating and cleaning vegetable fibres wherein fibre bundles suspended on endless conveyers are moved past cleaning drums 2, 3 ; 10, 11, Fig. 1, arranged in series and which operate on opposite sides of the fibres, the latter being turned before introduction into the second working point, two conveyers 1, 11 are used as turning means which move practically in the same direction and in the same vertical plane and cross at an acute angle so that the fibre bundles which are initially on the lower conveyer 1 are turned at the crossing of the two conveyers and laid on the other conveyer 1<1> which is in the upper position before crossing but in the lower position thereafter. The bundles of fibres are clamped between the pulley 4 and the conveyer 1 over the range b-c while being scutched by the drums 2, 3. The conveyer 1 passes over pulley 5 round pulley 6 upwards over the adjustable guide pulley 7 round pulley 8 and, as shown 1<1>, round pulley 9 and back to pulley 17. Where the conveyer 1 crosses the conveyer 1<1> the fibre bundles are turned as shown in Figs. 5-7 corresponding respectively to the sections CD, EF, GH, Fig. 2. The turned bundles are then transferred from the conveyer 11 to the conveyer 14 and scutched by the drums 10, 11. A spiral guide 18, Fig. 8, may be provided to make the turning down more positive.
Patent GB-492919-A (GB)
Title: Improvements in change-speed gears
IPC: F16H3/08
Filed: 1937-05-20
Abstract: 492,919. Change - speed gearing. MAYBACH-MOTORENBAU GES. May 20, 1937, No. 14104. Convention date, June 6, 1936. [Class 80 (ii)] Relates to change-speed gearing suitable for vehicles having a plurality of constant-mesh single-helical gear pairs such as 2, 42 and 12, 52 and 22, 62 brought into action by alternative clutches in a shaft train subdivided a plurality of times. Wheels such as 2, 42, 22, 62 are mounted as the wheel 42 is on one side in a bearing 43 directly in a casing 20 and on the other side in a distant bearing 47 inside a rotary hub of a gear 52 supported in the casing. The arrangement is such that when any one of these bearings 47, 57, 7, 14 inside a rotary wheel hub is transmitting axial thrust due to reaction of helical teeth, such bearing is locked solid by an adjacent alternative dog clutch such as 48, 58, 8, or 18. Bearings mounted in the gear casing 20 and interiorly thereof, such as 10, 11, 23, 50, 51, 63, are adapted to slide so as not to support axial thrust which is passed on to thrust bearings 3, 36, 43, 66 in the casing end walls by the bearings 7, 17, 27 &c. in the rotary hubs. The arrangement shown yields six forward speeds, and reversed drives are obtained when a spur gear 67 is slid into mesh with an idler (not shown).
Patent GB-690079-A (GB)
Title: Improvements in or relating to electric exposure meters
IPC: G03B7/02
Filed: 1951-06-14
Abstract: 690,079. Photographic exposure meters. ZEISS IKON AKT.-GES. June 14, 1951 [June 17, 1950], No. 14126/51. Class 98 (i). [Also in Group XL (b)] In a photo-electric exposure meter the movement is made rotatable as a whole its position being adjusted by different exposure factors so that adjustment of a final variable brings the pointer to read against a datum mark. As shown, a film speed is set by rotation of cam 18 which through a bell-crank lever 15 and pin 14 adjust the planet wheel carrier 11 of a differential consisting of sun wheels 7, 10 and planet wheels 8, 9. Shutter speed is set by a further cam 1 which adjusts the driving pinion 6 of the differential. The resultant movement of sun wheel 10 rotates a cam 13 rigid with it to rock a toothed lever 21 and adjust the angular position of the meter movement 24, the cam being so shaped as to compensate for non-linearity of the meter response. Additional exposure affecting factors may be taken into account by adjustment of the datum mark or by adjustment of the meter current. The exposure meter may be built into a camera.
Patent GB-234843-A (GB)
Title: Process for the treatment of molasses for use in the preparation of compressed yeast
IPC: C12N1/18
Filed: 1925-05-29
Abstract: 234,843. Vereinigte Mautner'sche Presshefe-Fabriken Ges., (Assignees of Drexler, B.). May 30, 1924, [Convention date]. Yeast.-Molasses for use in the preparation of compressed yeast are purified without destruction of the vitamines by simple dilution and filtration, the filtration being assisted by means of an inert powder which is deposited on the filtering material : a suitable powder is talc if the molasses are acid or chalk if they are alkaline. The molasses may be subjected to a lactic fermentation before filtering, to render the protein content available, and the nitrogen content may be further increased by adding decomposed albumens and ammonia or ammonium salts. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the addition of inert powder to the diluted molasses to facilitate filtration. This subject-matter does not appear in the Specification as accepted.