baber/WOPTO huggingface dataset:
Patent GB-1102085-A (GB)
Title: Improved turbocharged internal combustion engine
IPC: F02B37/04
Filed: 1966-03-11
Abstract: 1,102,085. Supercharged L C. engines. SIR W. G. ARMSTRONG WHITWORTH & CO. (ENGINEERS) Ltd. and D.W. Tryhorn. Jan. 11, 1967 [March 11, 1966; Sept. 15, 1966], Nos. 10732/66 and 41335/66. Heading F1B. A turbocharged two-stroke engine has the charging air supplied by a first charging system comprising a turbocharger 5 and a second charging system comprising a turbocharger 6 in series with a compressor 7 which is engine driven or driven by a separate motor, the exhaust system of the cylinders supplied by the series charging system 6, 7, being in communication with the turbine of the first system 5. In Fig. 1 both systems feed a common reservoir 4 and the exhaust manifold 12 is connected to both turbochargers 5 and 6. A by-pass valve 13 prevents excess pressure build-up. In Fig. 3 (not shown) separate air chests (16), (17) are associated with groups of cylinders (19), (24), the chest (17) being fed solely by turbocharger (22) whilst chest (16) is fed by turbocharger (22) and compressor (18) in series. The exhaust systems (20), (25), lead to separate nozzle systems of turbocharger (22). In Fig. 5 the series charging system feeding air chest 43 includes a turbocharger 42 fed by a compressor 40 driven by an electric motor 41, a separate turbocharger 48 feeding air chest 49. The exhaust systems 46, 47, 51, 52 of both groups of cylinders 44, 50, are connected to both turbochargers 42, 48. In a modification the air chests are interconnected through a valve which is closed or partly closed at low power outputs.
Patent GB-137080-A (GB)
Title: Improvements in or relating to the production of ferro-alloys
IPC: C22C35/00
Filed: 1918-07-02
Abstract: Chromic di-tungstate for use in an alumino-thermic process for obtaining steel alloys is prepared from a solution of sodium tungstate with chromium sulphate in the presence of soda ash. One Provisional Specification mentions the use of tungstic, vanadic, and molybdic acids with chromic, manganous, and ferrous oxides for obtaining compounds of tungsten &c. with other metals. Specification 784/03 is referred to.
Patent GB-237199-A (GB)
Title: An improved stopper for bottles
IPC: B65D41/12
Filed: 1925-04-27
Abstract: 237,199. Benetti y Tartaglia, C. April 27, 1925. Crown corks; packing discs for stoppers; coatings for packing discs.- Two concentric grooves, c, c', which may be continuous or discontinuous, are formed in the top of a " crown cork " in alignment with the inner and outer edges of the bottle neck to prevent the escape of gas between the cork disc a and the metal cap d. As shown, triangular or other flaps f, punched out of the flange of the cap, project upwardly into the cork disc to retain it in the cap but it may be secured in a separate metal cover by a depression stamped in the skirt thereof; the underside of the disc is coated with paraffin or other tasteless substances, and the cover is pressed into the metal cap. In a modification the grooves are formed in a metal liner adapted to be inserted between an ordinary cap and the cork disc.
Patent GB-1385379-A (GB)
Title: Methods of developing copying materials
IPC: G03C5/18
Filed: 1972-03-09
Abstract: 1385379 Developing diazotype materials RICOH K K 9 March 1972 10908/72 Headings G2C and G2X Imagewise exposed two-component diazotype materials are developed by heating in contact with a developer assembly comprising a vapourpermeable fibre sheet, a layer of powder on which amine is absorbed and a vapour-impermeable backing, the pore size of the fibre sheet being less than the particle size of the powder. The assembly may be in the form of a sheet or a roller wherein the backing is the vapour-impermeable core. Heat is generally supplied by a heated roller on the other side of the material. Specified fibre sheets are natural and synthetic fibre cloths and metal gauzes. Specified powders are silica, alumina, clay, Ni, Fe, ferrite or polymers. Specified amines are monodi-and triethanolamine, 2-ethylaminoethanol, ethylene diamine or morpholine. An adhesive may be used to help the layer adhere to the backing or core.
Patent GB-697450-A (GB)
Title: Improvements in or relating to arrangements for synchronising receivers to transmitters in time division multiplex systems
IPC: H04J3/06
Filed: 1952-04-30
Abstract: 697,450. Automatic frequency and phase control systems. TELEFONAKTIEBOLAGET L. M. ERICSSON. April 30, 1952 [April 30, 1951], No. 10912/52. Class 38 (iv). [Also in Group XL (c)] In a time-division multiplex pulse signalling system of the kind wherein the pulses for synchronizing the receiver distributer are amplitude-modulated at a frequency which is a sub-multiple of the sync. pulse frequency, the distributer comprises a gate-pulse generator the frequency and phase of which are automatically controlled by a method which involves a phase comparison at the modulating frequency. The incoming pulses are applied to the grid of a valve V1 which has a high resistance R and a delay network D in its cathode lead. The cathode is connected to the grid of an amplifier V2 which has its anode circuit 2 tuned to the sync. pulse modulation frequency and coupled to a phase-comparing circuit by a, transformer T1. The delay network is designed to convert a positive pulse 3, Fig. 2 (a), into a negative delayed pulse 4 so that at the point 5 the pulse assumes by summation the shape shown in Fig. 2 (b). In the system shown, the sine. pulse modulation is effected at half the recurrence frequency, a alternate sync. pulses are of opposite sign, each negative pulse shown at Fig. 3 (a) being converted to a modified pulse shown at Fig. 3 (b). The pulse voltages at the point 5 are connected through oppositely-poled diodes D3, D4 to the grid of a valve V3. This path is however normally blocked by a negative bias applied through a choke 7 and resistor 6 to the joined anodes of the diodes. A local generator 8, controlling the channel distribution at the receiver, supplies narrow positive pulses (c) through a condenser 9 to the diode anodes, thereby enabling samples of the voltages (b) to pass to the grid of the valve V3. If the pulses (c) occur too early, the grid receives pulses d similar in sign to the received sinc. pulses (a); if too late, of opposite sign (f). The anode circuit of the valve V3 is tuned to half the sine. pulse frequency, and is energized by the grid pulses in phase agreement with, or opposition to, the voltages in the tuned circuit 2. A transformer T2 couples the anode circuit to the known phase-comparing circuit comprising input transformers T1, T2, diodes D1, D2 and condenser-shunted resistors R1, R2, giving positive or negative output voltage according to the relative phases of the inputs at T1, T2. This voltage is applied to the pulse generator 8 to adjust its frequency in the sense necessary to cause its pulse output (c) to coincide with the crossover t1 of the pulses (b), whereupon the pulses on the grid of the valve V3 assume the form (e) shown in Figs. 2 and 3. Instead of the sync. pulses being alternately positive and negative, they may all be of the same sign but of different amplitudes. The modulating frequency may be any submultiple of the sync. pulse frequency. The synchronizing system may be employed at repeater stations.
Patent GB-828008-A (GB)
Title: Improvements in or relating to machines for drying fibrous materials, such as textile fibres
Inventor: BREED STEPHEN
IPC: F26B13/16
Filed: 1957-04-04
Abstract: 828,008. Centrifugal fans. TAYLOR, WORDSWORTH & CO. Ltd. April 3, 1958 [April 4, 1957], No. 11008/57. Class 110 (1). [Also in Group XIII] A centrifugal fan comprises a volate casing 22 having an angle C between the walls 23, 24 of its flared mouth of not less than 45 degrees. In four alternative casings, Figs. 4 ... 7 (not shown), the angle C is 57 degrees, 47 degrees, 90 degrees and 50 degrees respectively.
Patent GB-274228-A (GB)
Title: Improved pressure registering apparatus
IPC: G01L7/16
Filed: 1926-04-27
Abstract: 274,228. Ashton, H. April 27, 1926. Pneumatic-tyre and piston-and-spring pressure gauges. - Several constructions are described which when a definite pressure is reached release air with a hissing noise. In the form shown in Fig. 1, a piston moves in a cylinder connected at the lower end with the pressure container. The piston rod D passes through the cylinder end between which and the piston is a spring. A hole A is provided on the side of the cylinder and becomes uncovered when the pressure forces the piston above it. A cap E holds the piston down when the gauge is out of use. The hole is sometimes fitted with a valve, for instance an elastic band, housed in a slot B. A sleeve C is also provided to prevent the valve from functioning. In a modification shown in Fig. 2, the cylinder is fitted with a plunger having a square piston rod adapted to pass through a similar shaped hole in a plug P screwed into the cylinder which is screwed internally to about half-way down. The cylinder is slotted and a loose washer placed on the piston rod has a projection K passing through the slot H and thus serving as an indicator. The tension of the spring F is adjusted by turning the piston rod by means of the milled head L. The outlet A and valve are fitted as in the first form. In a further modification, a loose square graduated tube passes through the cylinder cover and through the plug to rest on the piston. A graduated tube may be formed in one with the plug or may be loose and provided with projections to engage holes in the plug. The piston may be formed on the underside with a screwed extension adapted to engage a screwed inlet hole by pressing upon and twisting the top of the piston rod so that the apparatus may oe locked when out of use.
Patent GB-717620-A (GB)
Title: Improvements relating to induction heat treatment of workpieces having cylindrical surfaces
Inventor: HOWARD JOHN CHRISTIE
IPC: C21D1/10
Filed: 1952-05-01
Abstract: 717,620. Heat treating. ELECTRIC FURNACE CO., Ltd. May 1, 1953 [May 1, 1952], No. 11037/52. Class 72 [Also in Group XI] A cylindrical surface 12, Fig. 6. of a metal workpiece is heated by a single turn inductor 15 which, at any instant, heats a relatively small circumferential area, and relative rotary movement between the workpiece and inductor about the axis of the cylindrical surface effects the heating of the whole surface or a circumferential band thereof. A quench device 18 comprising a number of outlet orifices is secured to the inductor, . and quenching fluid is continuously supplied to the area heated. The workpiece 10 is supported on a rotatable turntable 11, Fig. 1, and the inductor is carried by an arm 14 which may move vertically on a track 21, in which case a helical band of the workpiece surface is treated. ' In Fig. 8 the external cylindrical surfaces of crankshaft journals 34 are hardened by an inductor 40 and an associated quench device 41. the crankshaft being rotated :about the axis of the journals. The inductor may be enclosed within suitable laminated material.
Patent GB-1215548-A (GB)
Title: Device for drawing off molten solder from soldered joints
Inventor: WALLIN ROLF ALEXANDER
IPC: B23K1/018
Filed: 1968-03-07
Abstract: 1,215,548. Raising molten metal. R. A. WALLIN. March 7, 1968 [March 17, 1967], No.11047/68. Heading F1R. A device for removing molten solder from a soldered joint comprises a plunger 8 which can be moved forwardly into the cocked position shown by a knob 27 against the action of a tension spring 19. The knob is connected to the plunger by a pin 26 which passes through a longitudinal slot in the cylinder 1 and is surrounded by a ring 28 of low friction material. The plunger is locked in its cocked position by engaging the pin 26 with a lateral extension of the slot. When the plunger is released it is drawn rearwardly by the spring so that solder is drawn into the cylinder. Solder can be cleared from the nozzle by rod portion 12 by pushing the plunger forwardly beyond its cocked position. The nozzle comprises an outer metal portion 2 and a removable tubular portion 6 of plastics material, e.g. p.t.f.e.
Patent GB-708158-A (GB)
Title: Improvements in or relating to salts of dihydrostreptomycin
IPC: C07H15/238
Filed: 1952-05-02
Abstract: A mixed inorganic acid salt of dihydrostreptomycin is prepared by adding to an aqueous solution of a single acid salt of dihydrostreptomycin at least one molar equivalent, and preferably about two, of a water-soluble salt having a different inorganic anion and a cation which is capable of producing a water-soluble inorganic salt with the acid of the dihydrostreptomycin.  The mixed acid salt of dihydrostreptomycin may contain two or three anions, one of which may be trivalent, e.g. phosphate, the others are mono- or divalent. A salt containing a monovalent anion and a divalent anion is preferred. Specified anions are sulphate, sulphite, hydrosulphite, thiosulphate, chloride, bromide, iodide, chlorate, bromate, nitrate, nitrite, and thiocyanate.  Preferred water-soluble salts are the alkali metal, ammonium and organic ammonium salts of the above anions.  The initial aqueous solution has a potency of at least 80,000 mcg./ml. and preferably at least 200,000 mcg./ml. Excess water-soluble salt is used to reduce the solubility in water of the mixed acid salt or dihydrostreptomycin. Crystallization is enhanced by cooling and seeding.  The mixed acid salt may also be formed by adding the chosen anions, as acids, to the base dihydrostreptomycin. The mixed acid salts of streptomycin or mannosido-dihydrostreptomycin are not formed in the above manner.  A crude dihydrostreptomycin obtained by adsorbing streptomycin from a filtered culture broth on to an ion-exchange resin, eluting and hydrogenating with Raney nickel catalyst is purified by forming its mixed acid salt in the above manner.  Among specific salts are dihydrostreptomycin sulphate-iodide, dihydrostreptomycin sulphitebromide and dihydrostreptomycin sulphiteiodide.
Patent GB-474031-A (GB)
Title: Improvements relating to electric arc converters
IPC: H02M1/04
Filed: 1936-04-20
Abstract: 474,031. Converting. ALLGEMEINE ELEKTRICITATS-GES. April 20, 1936, No. 11332. Convention date, April 18, 1935. [Class 38 (ii)] In a Marx-type converting arrangement for feeding a load having a back E.M.F., the ignition impulses are so timed that the auxiliary arc is not struck until the applied E.M.F. is equal to the back E.M.F. and means are provided for ensuring that the auxiliary arc does not continue to burn after the back E.M.F. exceeds the applied E.M.F. The auxiliary discharge path 8, 9, Fig. 4, is supplied from a source 11, 12 through a resistance 13 and is bridged by an auxiliary valve 14 normally negatively biassed by a battery 16 to be non- conducting. When current flows, the auxiliary arc circuit is short-circuited by the valve 14 which is rendered conductive by an impulse from a current transformer 10, 17 in the main circuit. In a modification, Fig. 5, having a circuit 21, 22 for starting the arc and a circuit 20, 13 connected through a valve 23 for feeding the arc, the valve 14 for short-circuiting the supply is connected as shown. In this position it is not subjected to the high starting voltage. In a further modification, means responsive to a change of current in the auxiliary arc circuit when the main arc ignites is used for effecting extinction of the auxiliary arc.
Patent GB-218779-A (GB)
Title: Clasp or fastener for belts
IPC: A44B11/26
Filed: 1923-04-27
Abstract: 218,779. Bourke, N. April 27, 1923. Stud-and-slot fastenings. - In a clasp or fastener for belts of the kind in which one part c comprises a socket having a spring-pressed stud e to engage a slot in a plate a comprising the other part, a spring f is provided in the socket member adapted to be compressed when the parts are engaged and serving to eject the plate a from the socket when the stud e is operated to release the parts. The stud e has an upper reduced portion e<2> adapted to pass through a narrow slot b<1> in the plate a communicating with the slot b. A bevelled edge on the plate a co-operates with a bevelled portion of the stud e, when the parts are being connected, to depress the stud so that the reduced portion e<2> may enter the slot b<1>, the stud being afterwards returned to its normal position by a spring e<1> so that the large portion of the stud engages with the slot b to lock the parts together. The parts are released by pressing down the stud e.
Patent GB-854178-A (GB)
Title: Apparatus for contacting a gas with a dehydrating liquid
Inventor: WORLEY MARVIN STEVE
IPC: B01D3/20
Filed: 1957-04-08
Abstract: 854,178. Contacting a gas with a liquid. BLACK, SIVALLS & BRYSON Inc. April 8, 1957, No. 11404/57. Class 55 (2). Apparatus for contacting a gas with a dehydrating liquid comprises a tower with gas and liquid inlets and outlets and a series of bubble-cap trays each having a liquid downcomer 69, and pairs of plates 71, 72 with staggered perforations arranged below all trays except the bottom tray to remove dehydrating liquid entrained by the gas on the tray below. The downcomers 69 are surrounded at their upper ends by chimneys 65 with slots 67 and discharge at their lower ends into wells 66.
Patent GB-227038-A (GB)
Title: Improvements relating to vaporising or fumigating lamps
IPC: A01M1/20
Filed: 1924-05-09
Abstract: 227,038. McDougall, I., and Howles, F. May 9, 1924. Vaporizing by heat. - A fumigating or vaporizing lamp comprises a bowl a and lid G adapted to form a container for a cup c serving as a burner and a tripod consisting of a ring d with inwardly projecting arms e which are turned upwards before use as shown in Fig. 3. A rim f on the bowl a prevents its accidental displacement from the tripod. The lid b may be filled with water to cool the burner c when in use.
Patent GB-200252-A (GB)
Title: Improvements in and relating to machines for dressing rails in situ
IPC: E01B31/17
Filed: 1922-04-25
Abstract: 200,252. Stokes, H. P., and Eunson, J. W. April 25, 1922. Railway and tramway rails, trueing and surfacing in situ.-Comprises a truck B, fitted with transversely balancing means, and carrying on a vertically-adjustable transverse shaft 3 two independent grinding-attachments which may be adjusted laterally on the shaft to enable the machine to operate on rails of various gauges. The shaft 3 is carried by three cantilevers 4 movable vertically in unison on the truck by hand-operated worm-gearing 13 - - 16. The grinding-attachments each comprise a frame 1 having bows 2 fitting loosely on the shaft 3 and held in adjusted lateral position thereon by split collars which are secured to the shaft. In the frames are journaled spindles 9 carrying grinding-wheels 8, the spindles carrying pulleys 10 which are adjustable in position along the shafts to keep them in line with driving pulleys 11 on the truck; the frames also carry vertically adjustable pivotal shoes 7, which rest on the rails during grinding. The machine may be traversed quickly along the rails, or may be moved slowly to and fro for grinding, by a motor A and intermediate gearing mounted on the truck. The flanged wheels of the truck are movable on their axles to allow for changes of gauge of the rails. Specification 198,871, [Class 83 (iii), Metals, Cutting], is referred to.
Patent GB-435371-A (GB)
Title: Obturating device for preventing the refilling of bottles and other receptacles
IPC: B65D49/02
Filed: 1935-04-15
Abstract: 435,371. Non - refillable bottles. IRRELLENABLES SOC. ANON., and FERRER, I., 64, Rue Caspe, Barcelona, Spain. April 15, 1935, No. 11597. [Class 125 (i)] A device for preventing the refilling of bottles and other receptacles consists of a cylindrical or other shaped casing 1 fitted to the inside neck of the bottle with an inner capsule 3, 4, 5 above a flat valve 13. The capsule has side openings 6, 7 and a bottom 5 provided with crossbars 19 with passages in between. The valve has guide projections 14, 16 and is seated on upturned members 11, 12. The casing 1 is retained by a cork member 8 and a dome piece 9 retained by an outer capsule 22. The dome member can be otherwise secured to the bottle or container.
Patent GB-574393-A (GB)
Title: Improvements in or relating to a thread snap gauge for gauging male screw threads
IPC: G01B3/40
Filed: 1943-07-16
Abstract: 574,393. Screw-thread gauges. SHEFFIELD CORPORATION. July 16, 1943, No. 11597. Convention date, July 27, 1942. [Class 106 (ii)] A gauge for external screw-threads comprises a body with spaced arms, one carrying a freelyrotatable ribbed roller and the other a normallyfixed roller provided with one or more ribs formed with gaps each having a radial edge. In the form shown, the gauge has a pair of " go " members 13, 14 and a pair of " no-go " members 15, 16, the former testing both diameter and pitch and the latter diameter only. The upper " go " member 13 is a roller freely.mounted in a pin 18 and having annular ribs 17, Fig. 3. The lower " go " member 14 is a roller 25 with annular ribs 24, and is held in a fixed position by a screw 27 which with the aid of a collar 28 on the supporting pin 26 tightens the roller against the side 12 of the gauge frame. A groove 31 is cut in the ribs 24 to form radially-disposed surfaces 32 so that the contact between the thread to be tested and the ribs may be observed. The portions of the pin 26 bearing in the frame 12 are eccentric with respect to the axis of the roller 25 so that, by rotating the pin 26, the distance between the member 13, 14 may be adjusted. The upper " no-go " member 15 consists of a number of separate ribbed sleeves rotatable and axially slidable on a supporting pin, -the lower '' no-go " member 16 comprising a sleeve normally fixed in position and having a single rib. A groove is cut in this single rib to form a radial surface 52. The pin supporting member 16 is also provided with eccentric portions so that the distance between the members 15, 16 can be adjusted.
Patent GB-508249-A (GB)
Title: Improvements in and relating to the reproduction of recorded sound
IPC: G11B7/00
Filed: 1938-04-14
Abstract: 508,249. Optical sound - reproducing apparatus. RCA PHOTOPHONE, Ltd., and UNDERHILL, J. April 14, 1938, No. 11615. [Class 40 (ii)] A circuit arrangement for reproducing from push-pull sound records comprising two-photoelectric elements A, B connected with the input circuit of an amplifier by means of a resistancecapacity network so arranged that the output of one photo-electric element is in reverse phase with that of the other, is characterized. in that the two photo-electric elements are either both connected with a single source of direct current or each is connected with a separate source, a resistance 13 being connected in the anode circuit of one photo-electric element A and another resistance 19 in the cathode circuit of the other photo-electric element B, the said anode and cathode being connected in parallel through condensers 20, 21 with one input terminal 23 of the amplifier. In a modification of the arrangement shown in Fig. 1, the battery 11 is replaced by a resistance network connected across any suitable voltage source. Fig. 2 shows a further modification in which the anode and cathode respectively of the cells B, A are connected together and to an adjustable tapping 25 on a potentiometer connected across the terminals of the battery 11. Condensers 27, 28, providing a low resistance path for alternating current, are connected between the tapping point 25 and the terminals of the battery. The potentiometer 26 may be omitted, and the tapping point 25 adjustably connected to the battery near the centre. Instead of providing separate photo-electric cells as shown, a double cell comprising two photo-electric elements in one envelope may be used.