baber/WOPTO huggingface dataset:
Patent GB-566903-A (GB)
Title: Improvements in or relating to circuits employing non-linear resistance material
IPC: H01C7/10
Filed: 1943-07-13
Abstract: 566,903. Telephonic relays. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and RICE, T. G. July 13, 1943, No. 11329. [Class 40 (iv)] A relay circuit comprises a piece of non-linear resistance material NLR, of a kind in which the resistance falls with an increase of the applied voltage independently of the direction of current flow, in series with a source of alternating or direct current B of low voltage and a responsive device such as a relay, and means for applying a higher voltage to the reactance material without making circuit changes in the low voltage circuit to operate the responsive device. For example, the high-voltage may be derived from a resonant circuit L, C excited by an incoming signal. Such a circuit discriminates strongly against signals of neighbouring freqiencies. According to the Provisional Specification, the circuit can be modified to make it produce oscillations.
Patent GB-235363-A (GB)
Title: Improvements in submarine vessels
IPC: B60F5/02
Filed: 1924-05-07
Abstract: 235,363. Sumner, P. J. H. May 7, 1924. Submarine vessels ; torpedoes.-A submarine which may be used as an explosive missile, is provided with fixed planes 1 set at a negative angle of incidence and floats 4. The tail plane 6 is suitably located to stabilize the craft and has a hinged tip 7 which is adjusted in accordance with the proposed angle of dive. The craft which is of the one man type is provided with a tractor propeller 11 fitted with a guard 12. Ballast tanks are dispensed with the disposition of the main planes causing a downward reaction which varies with the speed of the craft and thus regulates the dive. The craft is driven by an electric motor. An ordinary vertical rudder 8 is fitted. Spacifications 10495/00, 12686/07 and 116,299 ae referred to.
Patent GB-1014761-A (GB)
Title: Improvements relating to electric current collectors
Inventor: WILCOX THOMAS WEBSTER
IPC: B60L5/22
Filed: 1961-03-28
Abstract: 1,014,761. Overhead current collectors. MERZ AND McLELLAN SERVICE Ltd. March 26, 1962 [March 28, 1961; May 1, 1961; Oct. 13, 1961], Nos. 11411/61, 15731/61 and 36890/61. Heading B7L. In an electric current collector for electric traction systems a contact assembly has a contact surface so constructed and flexibly supported that at any point it can yield to the supply conductor pressure without moving the whole assembly and the assembly is backed up by at least one cushion comprising a flexible diaphragm subject to gaseous pressure to balance the supply conductor pressure. In the arrangement shown a number of segments 30 of parallelogram or diamond-shape are arranged in a number of parallel rows supported on a rubber diaphragm 31 mounted on a closed-ended trough-shaped member 10 in such a manner to form an air-tight container which can be subjected to air pressure to deform the diaphragm 31. The rows of segments 30 are mounted on spacers 44, of different heights, in turn mounted on the curved surface of the diaphragm 31 in such a manner as to present a flat horizontal surface to the overhead supply wire. The segments 30 are interconnected beneath the diaphragm by flexible wires. The segments are protected by conducting walls 33 the flanges 32 of which are 'bolted to the trough 10 to hold the diaphragm 31 in air-tight connection therewith. In a modified form of a segment 60, shown in Fig. 6, each segment has a lower portion 61 of rectangular shape and an upper portion 62 of parallelogram or diamond-shape and the pointed ends of each upper portion 62 projects over a portion of the lower portion 61. The underside of the pointed end is sloped upwardly. The trough 10 is provided with an air connection 55, Fig. 4, and is supported by its end walls on pantograph arms 17, 18. The two arms 17, 18 are pivoted to one another at 19 whilst the arm 17 is pivoted at 20 to the end wall and the arm 18 is pivoted at 21 to a link 22 in turn pivoted to the end wall at 23.
Patent GB-567381-A (GB)
Title: Improved variable pressure systems
IPC: G05D16/18
Filed: 1943-07-14
Abstract: 567,381. Valves. JORDAN, W. H. July 14, 1943, No: 11428. [Class 135] [Also in Group XXVI] The suction and pressure sides of a rotary pump 25 are used to test instruments actuated by differential air pressure (such as instruments in an aircraft cockpit), against a set of similar instruments contained in a portable container 11. A valve 26 has a hand-operated rotor 35 provided with projections 40, 41, to gradually open the pressure line 29 and close the suction line 30, or vice versa. The throttle valve includes reducing gear (which may be 20: 1) for accurate adjustment. A switch 23 controls an electric driving motor for the pump, which may be of the sliding vane type. A valve 24 provides a connection for any further line requiring suction or pressure. A distributing valve 22 has indices I ... VI to indicate which instrument similarly marked in the container is connected to the service line 32. Different coloured markings may be used instead. The valve 26 is of the plug type under bottom spring pressure. A restrictor. 33 (see Fig. 6), in the service line, has a threaded portion 45 into which a screw 46, of slightly different thread, is screwed to allow an extended helical path for the air. Pressure ranges and quantities of air which may be supplied, are referred to in the Specification. A gauge 48 indicates the pressure in the line 32. A separate pressure line 49 is provided. Lead-in wires. and other accessories may be stored at the base of the panel 14.
Patent GB-144053-A (GB)
Title: Improvements in or relating to tobacco pouches
IPC: A24F23/04
Filed: 1919-05-08
Abstract: 144,053. Lyons, R. May 8, 1919. No Patent granted (Sealing fee not paid). Pouches.-A tobacco pouch of rubber-lined canvas or other flexible material comprises a tobacco pocket a, Fig. 2, adapted to fold into a pocket b, above which, as shown, are provided a recess d for a pipe and a pocket e for a match-box. The pocket e may be further subdivided to provide receptacles for a cigarette-holder, pipe-cleaner, &c. A flap f with a spring fastener g or other securing- means closes the pouch. In the modified construction shown in Fig. 5, the folding tobacco pocket is dispensed with, the tobacco pocket a having a separate closing-flap h overlapped by the flap i.
Patent GB-733475-A (GB)
Title: Improvements in and relating to counting apparatus
IPC: G06M11/04
Filed: 1951-05-16
Abstract: 733,475. Photo-electric particle counter. YOUNG, J. Z., ROBERTS, F. F. W., CAUSLEY, D., and WILKIE, D..R. April 30, 1952 [May 16, 1951], No. 11499/51. Class 40 (3). Particles are counted by scanning a specimen with a series of parallel rasters each of width approximately equal to the particle dimensions so that particles lying wholly in a particular raster produce electric signals which are recognized and registered. As shown (Fig. 1) a raster of the type referred to is formed on the screen of a cathode ray tube 11 and is imaged by a microscope assembly 12 into the plane of a specimen 13. Light passing through the specimen is received by a photo-cell which may be of the electron multiplier type. As shown in Figs. 2 and 3, the specimen is scanned in a series of vertical strips X and Fig. 3 indicates how the scanning spot traverses a particle having a dark centre 19 and a light surrounding portion 20. The output of photo-cell 14 controls the vertical deflection of the spot of a cathode ray tube 22 the horizontal deflection of which is synchronized with that of the scanning spot. Thus as the scanning spot traverses a particle which is completely in the raster (Fig. 3) the trace produced should correspond in shape to slots A-D cut in a mask placed on the end of the tube (Fig. 5). A further photo-cell 24 detects whether the first signal agrees with slit A so that the photocell receives a maximum amount of light. If it does the cell operates a switching device which transfers the trace due to the next traverse of the spot to a position beneath switch B. Thus each traverse of the spot is checked until if the last slit agrees with the trace a counter 26 is operated. Instead of varying the vertical deflection of the spot of tube 22, the signal may vary its brightness. If the particles are not circular a number of different scans of the specimen may be made in different directions. Elements of different shape in the same specimen are counted by using different masks. The count is corrected for particles, which do not lie completely in any raster strip and are therefore not counted, by statistical means. Specification 707,406 is referred to.
Patent GB-543580-A (GB)
Title: Improvements in or relating to circuit arrangements of the type comprising a thermionic valve for combining electrical oscillations
IPC: H03D7/08
Filed: 1940-07-10
Abstract: 543,580. Thermionic valve circuits. PHILIPS LAMPS, Ltd. July 10, 1940, No. 11524. Convention date, July 13, 1939. [Classes 39 (i) and 40 (v)] In a mixing valve the control grid to which the locally generated oscillation is applied is more remote from the cathode than the signal control grid and the control grids are not separated by a screening grid but one of these grids is divided and connected in push-pull. Fig. 2 shows an arrangement in which the oscillator grid 3<SP>1</SP>, 311 is sub-divided and the output is taken from anode 41, 411 in push-pull. Alternatively the signal grid 1 may be sub-divided and the signal fed to the two halves in push-pull, Fig. 3 (not shown). The input control grid and the anode are each constituted by two halves arranged symmetrically with respect to the cathode and connected in push-pull. The divided grid may be built up from small rods which are sub-divided into two groups arranged symmetrically with respect to the cathode.
Patent GB-949242-A (GB)
Title: Improvements in or relating to centrifugal clutches
IPC: F16D43/18
Filed: 1962-03-27
Abstract: 949,242. Centrifugal clutches. OHLSSON & RICE Inc. March 27, 1962 [May 26, 1961], No. 11662/62. Heading F2C. A friction clutch comprises shoes 24 held by a spring 31 in contact with a driving cam 11 at low speeds, and urged centrifugally into contact with a driven drum 18 above a predetermined speed, the engaging pressure being aided by the action of the cam 11. The spring 31 passes through a bore 17 in the cam 11 and is received in bores 32 in each shoe 24, being retained by screws 34 having heads countersunk in the shoes and a threaded shank engaging the end coils of the spring.
Patent GB-1221874-A (GB)
Title: Process and apparatus for protein isolation
Inventor: BOHREN HANS-UELI
IPC: A23C9/148
Filed: 1968-03-11
Abstract: 1,221,874. Isolation of protein. NESTLES PRODUCTS Ltd. 11 March, 1968 [17 March, 1967], No. 11677/68. Heading C3H. [Also in Divisions B1-B2] Proteins are isolated from skimmed milk and from lactose serum obtained by precipitation of casein from skimmed milk by means of rennet or acid by a method comprising concentrating the liquid and optionally removing non- proteinaceous suspended matter from the liquid by means 16, passing the liquid through a column 2 of molecular sieve (defined) having a volume at least three times that of the liquid, at a velocity of 1 to 10 cm. per min., the liquid being uniformly distributed over the bed by ducts 7, and collecting the fraction of the liquid containing the major part of the proteins in one of receivers 12 and 13. The liquid may be forced through the column by water under pressure from line 15. The protein-containing fraction of the liquid may be detected by photometric, refractometric or electrical conductivity measurements made by means 9 and a servo mechanism may be used to operate valve 11 in response to the measurements. The " molecular sieve " may be polyacrylamide gel.
Patent GB-714962-A (GB)
Title: Improvements in disc-type brakes
IPC: F16D55/224
Filed: 1952-05-09
Abstract: 714,962. Disc brakes. DUNLOP RUBBER CO.. Ltd., and BUTLER, H. J. April 16, 1953 [May 9, 1952], No. 11729/52. Class 103(1) In a disc brake, particularly for aircraft, the brake disc is of rectangular cross-section so as to have braking surfaces engageable by friction pads on all its four sides. As shown in Fig. 2, the disc comprises triangular section parts 1 of iron cast integrally on to. an annular steel reinforcing plate 2. The brake applying members comprise L section pressure plates 5a, 5b and 7a, 7b, carrying friction material 6, and 8, which are urged against the disc by a fluid pressure cylinder and piston 12, 13. As shown in the wheel structure of Fig. 3, the friction pad carrying members 24 and 25 fulcrum about a ball pivot 27 at one pair of ends and are closed together by a fluid pressure actuator 31 acting through a rod 29. A similar construction is also described in which the plate carrying the triangular section disc elements is secured at its outer periphery and extends in a diagonally opposite direction. Other forms of brake actuating mechanism are shown in Figs. 6 and 9. Fig. 7 shows an actuator intended for manual operation using a coarse thread screw 53. Actuators may be disposed at diametrically opposite points around the disc.
Patent GB-832321-A (GB)
Title: Universal joint
IPC: F16C11/06
Filed: 1958-04-14
Abstract: 832,321. Universal joints. SWARTHOUT, W. E. April 14, 1958 [July 15, 1957], No. 11751/58. Class 80 (2). [Also in Group XXIII] A universal joint particularly suitable for transmitting rotary motion from a hand-held motor to a sander or buffer comprises a driving socket 15 and a driven ball 25 interconnected by a driving ring 30 having external and internal projections 31, 32 engaging slots formed in the socket and the ball. A bearing cup 22 is provided between the ball and the socket, and a retainer ring 34 is press fitted into a rim 16 of the socket. The cup, driving ring and retainer ring are made of plastic, such as nylon. The ball is provided with a cylindrical extension 27 which has a transverse slot 28. A disc 9 is provided with an inner annular rim 35 having projections 36 fitting in the slot 28, and the disc is secured to the cylindrical extension 27 by a screw 12. An outer rim 19 is provided on the socket, and a rim 40 on the disc, a coil spring 38 being fitted in the recess between rims 16, 19 of the socket and rims 35, 40 of the disc. The large radius of the spring which bears at points considerably spaced from the centre of rotation of the ball ensures a uniform pressure between each point on the surface of sandpaper 10, or the buffer, and the work. U.S.A. Specifications 1,407,617 and 2,687,024 are referred to.
Patent GB-118432-A (GB)
Title: Improvements in or relating to Ignition Magnetos.
Inventor: FOSTER ARTHUR REGINALD JOHN
IPC: H02K21/42
Filed: 1917-08-17
Abstract: 118,432. Foster, A. R. J. Aug. 17, 1917. Magneto-electric machines.-The rotating sleeve of an ignition magneto having a stationary armature C is formed with four or a higher even number of equally-spaced bars, and the circumferential widths of the bars, field-magnet and armature pole-shoes are selected so that a magnetic bridge is provided across the pole-shoes of the field magnet either by the bars themselves or by these bars magnetically in series with the armature core or pole-pieces. Fig. 2 illustrates a sleeve A with six bars B, producing twelve fluxreversals per revolution of the sleeve; to produce eighteen sparks in duplicate for an eighteen cylinder engine, two magnetos driven at threequarters of engine speed and each fitted with a distributor are employed.
Patent GB-628053-A (GB)
Title: Improvements in paper sheet interfolding machines
IPC: B65H45/24
Filed: 1947-05-02
Abstract: 628,053. Rotary blade cutting-machine. BURGESS, A. F. (International Cellucotton Products Co.). May 2, 1947, No. 11882. [Class 31 (i)] [Also in Group XVI] An interfolding machine is constructed with improved means for feeding and cutting sheets of toilet &c. paper from a pair of webs 20, 22, Fig. 1, and directing the cut sheets to interfolding mechanism S of known kind, or to other known interfolders. The webs are first cut longitudinally by cutters 24, 25, and then transversely by rotary blades 30 on shafts 16, 17 coacting with anvil blocks 41 on rollers 18, 19. The cutting-blades 30, Fig. 4, are formed in sections held against outward movement by adjustable blocks 31, each section being held in place by a pair of adjustable cams 33, held in position by lock-nuts 36. The anvil blocks are also in sections, are of steel, and are held in place in grooves 40, Fig. 6, of the rollers 18, 19 by means of screws 42. The webs are not cut completely across, and are finally severed by means of tearing rollers 59, 60, Fig. 10, driven at the same angular speed as the feed rollers and tapes, but formed with raised parts 61 which have a greater speed and act to complete the cut when they engage the partially cut sheets.
Patent GB-932215-A (GB)
Title: Continuous crystallization of calcium nitrate tetrahydrate
IPC: C01F11/40
Filed: 1960-04-04
Abstract: <PICT:0932215/III/1> <PICT:0932215/III/2> A continuous process for the crystallization of calcium nitrate tetrahydrate from the aqueous solutions obtained by decomposing rock phosphates with nitric acid, by cooling said solutions with an inert liquid having lower density than and immiscible with the solutions, said cooling liquid being introduced directly into said solutions to cool same to the crystallization temperature of +10 DEG  to -25 DEG C., and heated and/or evaporated by the contact therewith so that the solutions are agitated and circulated by the ascending cooling liquid or by its vapours, is characterized in that the cooling liquid is introduced dropwise at the bottom of a perpendicularly arranged cylindrical body placed concentrically in the vessel in order to maintain the suspension of the growing crystals in a vertical circulation, the crystals when having grown mainly to a size of from 0,4 mm. to 1,00 mm. sedimenting on the bottom of the vessel and being drawn off together with the mother liquor.  Suitable cooling liquids include: butane, propane, propane-butane mixtures, fluorinated lower alkanes, petrol free from unsaturated and aromatic fractions, saturated hydrocarbons and non-hydrolysable halogenated hydrocarbons.  Fig. 1 illustrates a suitable apparatus for the invention, the liquor being introduced at 1 and the crystal suspension being withdrawn at 6. Cooling liquid is introduced via 3, passes up through inner cylinder 5, evaporating on the way, and the vapours are withdrawn from the top of the vessel and recycled, being condensed in cooler 8.  Fig. 2 illustrates a modification in which the cooling liquid does not evaporate, 8 is a separator to separate any calcium nitrate liquor from the used cooling liquid.
Patent GB-567037-A (GB)
Title: Improvements relating to reciprocating pumps
IPC: F04B7/04
Filed: 1942-08-24
Abstract: 567,037. Reciprocating pumps. TECALEMIT, Ltd., and LE CLATR, C. C. S. Aug. 24, 1942, No. 11917. [Class 102 (i)] A reciprocating pump, particularly a high-pressure pump for delivering small quantities of de-icing liquid on aircraft, comprises a plunger 4 operated by a cam 14 and a smaller diameter piston 8 which normally is held in contact with the plunger by a spring 10. The plunger is formed with an annular recess 21, whilst the cylinder 3 has inlet and outlet ports 16, 19 connected by passages 16A, 19A to one or more longitudinal channels 17 which communicate by a port 18 with the annular pump chamber 22. When the cam 14 is rotated, the plunger and piston are lifted together, against the action of the spring 10, until the inlet port 16 is closed. The piston is then forced upwards at a greater speed than the plunger until the recess 21 opens the outlet port 19. The spring 10 then rapidly forces the piston down to discharge liquid from the chamber 22, through the port 18, the channel 17 and the port 19. The piston contacts the plunger before or after the latter reaches the top of its stroke. The volume of liquid discharged per stroke is therefore the area of the annulus 22 multiplied by, the stroke of the plunger between the closing of the inlet port and the opening of the outlet port. A number of such pumps may be combined in a single unit.
Patent GB-971682-A (GB)
Title: Polysiloxane isocyanates
IPC: C08G77/00
Filed: 1963-03-26
Abstract: The invention comprises organosiloxane isocyanates of the general formula <FORM:0971682/C3/1> wherein each R is a monovalent hydrocarbon or halohydrocarbon radical, each W is a divalent hydrocarbon, hydrocarbon-thioether, hydrocarbon ester or hydrocarbon tertiary amine radical having at least 2 C atoms, each R1 is a divalent aliphatic radical of 2, 3 or 4 C atoms such that no C atom has more than one oxygen atom attached thereto, each X is -O-, -S-, <FORM:0971682/C3/2> , each Y is a divalent hydrocarbon radical (free from aliphatic unsaturation) containing at least 4 C atoms, a is 0 or an integer, b is 0 or 1, m is 0, 1 or 2, n is 0 or 1, m+n is 0, 1, 2 or 3, and p is an integer such that the sum of all p values in the molecule averages at least that given by the equation (sum of all p)=5(32-m).  The radicals R may contain ethylenic or acetylenic unsaturation and may contain halogen substituents. The compounds are best prepared by reacting siloxanes containing Si-bonded H atoms with organic compounds containing both aliphatic unsaturation and a functional group selected from -OH, -SH, -NHR, -CONHR, -CONH2 and -COOH, and reacting the resulting product with a diisocyanate of the formula OCN-Y-NCO. A second method consists in making certain of the compounds by reacting siloxanes containing alkenyl radicals with thioglycollic acid, and reacting the product with the diisocyanate. A third method consists in preparing a copolymer of the formula <FORM:0971682/C3/3> wherein L is -W(OR1)aX1H, and reacting this copolymer with the diisocyanate.  The compounds vulcanize on exposure to moisture in the presence or absence of catalysts such as amines and organotin compounds; organic di- or poly-isocyanates will also hasten the cure. Fillers, e.g. C black, SiO2 (fume, hydrogel or xerogel), metal oxides, clays, powdered metals, mica and asbestos, pigments and compression set additives, may also be added.  In a typical example (1) a siloxane of the average formula <FORM:0971682/C3/4> in which Me=methyl, was reacted with allyloxy-propanol in the presence of H2PtCl6 to yield <FORM:0971682/C3/5> which was then reacted with toluene diisocyanate to form a clear pale yellow liquid of the formula <FORM:0971682/C3/6> [Me=methyl=CH3]. A portion of this liquid cured to a rubber in 3 days, when mixed with dibutyl tin dilaurate and exposed to moisture at room temperature.  Uses: for moulding, potting, encapsulation, seating and for treating leather, paper and fabrics.
Patent GB-848051-A (GB)
Title: Therapeutic product
IPC: A61K9/00
Filed: 1959-04-09
Abstract: The glassy honey product prepared by the method disclosed in the parent Specification is dissolved in water, or the freeze-drying step of the process described therein is omitted, to provide an injectable solution, of preferably 20% to 40% w/v, which has valuable therapeutic properties and may be administered intravenously.
Patent GB-268568-A (GB)
Title: Improvements in coarse and fine adjustment devices more particularly for use with wireless components
IPC: H03J1/14
Filed: 1926-05-10
Abstract: 268,568. Bennee, E. T., and Ormond Engineering Co., Ltd. May 10, 1926. Wireless tuning-apparatus, adjustment devices for. - In epicyclic coarse-and-fine adjustment devices for radio and other instruments and of the kind described in Specification 265,312, the arms carrying the planet discs are frictionally mounted on the spindle carrying the moving element or an the member secured thereto so that the planet discs do not slide round, and roughen the edge of, the annular element during the coarse adjustment. A leaf spring a may be interposed between a nut b at the bottom of the hollow driven spindle c and two arms d carrying the planet discs, the nut b sliding on the spring a during the coarse adjustment.