baber/WOPTO huggingface dataset:
Patent GB-722428-A (GB)
Title: Improvements relating to thermionic valve amplifying circuit arrangements
Inventor: SCOLES GRAHAM JOHN
IPC: H03F3/44
Filed: 1951-12-10
Abstract: 722,428. Valve amplifying circuits. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Dec. 10, 1952 [Dec. 10, 1951], No. 28899/51. Class 40 (6). In a cathode-follower circuit, the input is fed to a correcting circuit connected to the cathode follower V4 ot maintain the output amplitude and D.C. level more nearly equal to the input. The correcting circuit comprises a second cathode follower V1 with the negative end of the load resistor R1 connected to the anode of a compensating valve V2 fed from the input over a phase-reversing valve V3. The setting of the potentioneter R3 is adjusted so that the output signal is of the same amplitude as the input, the setting of potentiometer R4 determining the D.C. level of the output. Resistor R2 in the cathode circuit of valve V2 provides feedback to give a constant-current characteristic. Specifications 621,752 and 697,879, [both in Group XXXVI], are referred to.
Patent GB-395909-A (GB)
Title: Improvements in and relating to washing machines
IPC: D06F21/00
Filed: 1932-10-17
Abstract: 395,909. Washing-machines. LIST, K. M., 7, Kohlerstrasse, Meissen, Germany. Oct. 17, 1932, No. 29037. Convention date, Oct. 15, 1931. [Class 138 (ii).] The receptacle of a washing-machine is formed with at least its lower portion spherical and it is driven by driving members which frictionally engage the spherical portion or alternatively it may be driven by a fluid jet impinging on the wall of the receptacle. In Fig. 1 a spherical receptacle b rolls on a turntable c which may be flat or dished as shown and driven by a motor or by hand. In another form the spherical receptacle may be supported between two turntables which may be coaxial or otherwise and may be driven in opposite directions. The turntable may rotate on an inclined axis or like a swash-plate. In another form the receptacle rests on a turntable and is also suspended by ropes from an overhanging bracket. In Fig. 5 a jet from a pipe g acts on the receptacle which rolls on an inclined plate c<11> or on the inclined bottom. of the stationary casing. In another form, Fig. 6, the receptacle is rotated by a jet g while floating in the liquid in the receptacle a. In the form shown in Fig. 8, the receptacle rests on three or more rollers c<3>, c<4>, c<5>, of which only one need be driven or if two or more are driven they may be driven at different speeds. The rollers may be of different diameters and not necessarily round. The receptacle may be perforated or imperforate and in this case it is not enclosed in an outer casing but a stationary guard ring is provided.
Patent GB-356958-A (GB)
Title: Improvements in or relating to coat racks or hangers
IPC: A47G25/06
Filed: 1930-11-22
Abstract: 356,958. Garment hangers. BARTON, A., 135, Stanhope Street, St. Helens, Lancashire. Nov. 22, 1930, No. 29059. [Class 52 (v).] In a coat hanger, for use on the back of a chair &c., of the kind consisting of a bent rod a each end of which has a ball b housed in slotted socket members c, secured to the chair back &c., the socket members c are permanently associated with the ball ends and the ends of the slots limit the upward and downward pivotally movements of the rod, the lower ends of the slots being arranged so that the rod is spaced from the chair back when in its lowermost position.
Patent GB-283169-A (GB)
Title: Improvements in bogie frames of railway and the like vehicles
IPC: B61F5/52
Filed: 1927-11-01
Abstract: 283,169. Leonard, N. Jan. 6, 1927, [Convention date]. Axle-trucks and bogies.-A frame for a bogie of a railway vehicle is built up of two cast steel frames 1<1>, 1<2> connected together by longitudinal joints 10<1>, 10<2>, between the two middle transverse members 5<1>. 5<2>, of the frame. The joints may comprise scarfed ends 11<1>, 11<2>, Fig. 3, provided with upper and lower horizontal flanges 12<1>, between which the ends 11', 11<2> nest, the joints being bolted or riveted together. The ends 11<1>, 11<2> may be parallel with upper and lower flanges and the joints may be horizontal.
Patent GB-298639-A (GB)
Title: Process for the separation of sodium sulphate from sulphuric acid
IPC: D01F13/02
Filed: 1928-10-10
Abstract: 298,639. Vereinigte Glanzstoff-Fabriken Akt.-Ges. Oct. 13, 1927, [Convention date]. Cellulose xanthates, processes for making filaments from.-In the regeneration of coagulating baths for viscose, the separation of sodium sulphate from the sulphuric acid is effected by concentrating the solution to an acid content of 70-85 per cent, preferably 75-80 per cent by weight, cooling the solution, and separating the crystallized salt; it is found that the solubility of sodium sulphate in sulphuric acid reaches a minimum value when the acid concentration is within the range specified. The crystallization may be promoted by seeding, and the crystals may be separated by centrifuging or by filtration under pressure or in vacuo.
Patent GB-923527-A (GB)
Title: Improvements in or relating to dispensing devices for liquids
Inventor: BAYLISS MICHAEL JOHN KEITH
IPC: A47K5/12
Filed: 1960-08-23
Abstract: 923,527. Tapping containers. METAL BOX CO. Ltd. May 25, 1961 [Aug. 23, 1960], No. 29146/60. Class 21. [Also in Groups XIV and XVIII] A device for dispensing liquids, e.g. liquid soap, from a container 1, closed by a self-sealing closure 2, comprises a cylinder 4 having an open end 5 in sealed engagement with the closure, a piston 6 slidable in the cylinder and urged by a spring 10 away from the open end 5, an actuating member 9 secured to the stem 8 of the piston for moving the piston so that a hollow needle 13 passes through the closure 2, and a delivery passage 16 communicating with the interior of the needle and extending through the piston and actuating member. The dispenser and the container, which may be a non-refillable can, are mounted on a wall &c. above a wash basin, the actuating member being pressed by a hand into which the soap is delivered, the closure 2 resealing when the needle is withdrawn by the spring 10. A sealing washer 7 is provided and venting in the normal way by air passing through the passage 16 and needle when pressure in the container drops is augmented, and the rate of flow increased, by air and liquid sucked into the chamber 17 after the hand has been withdrawn and injected into the can when the needle is thrust through the closure on the next operation of the device.
Patent GB-669316-A (GB)
Title: Improvements in or relating to dispensing apparatus for fluids
IPC: B65D83/14
Filed: 1948-11-10
Abstract: 669,316. Valves; spray-producers. BRIDGEPORT BRASS CO. Nov. 10, 1948 [Nov. 10, 1947], No. 29208/48. Classes 69(iii) and 135. A valve device for dispensing aerosols stored in containers under pressure comprises a brass, &c., pressing 12, Fig. 1, attached at 16 to the container and carrying a flexible gasket 19 forming a seating for a valve closure member fabricated from parts 20, 21, 22, 23 and loaded by a spring 18. A pipe 34 reaches to the bottom of the container. The gasket is clamped between the parts 22, 23, and a portion 31 of the part 21 forms the closure surface proper. The valve is opened either by depression of the outer end of the part 23 or by tilting this part by lateral movement of a cap 36. Fluid then passes from the tube 34 to an annular chamber C where it flows through openings 28 in the periphery of the part 22, a restriction 24a and channels 26, to a chamber D. It then passes through a restriction 25, which imparts a swirling motion, to a chamber E and thence through an orifice 29 to atmosphere. In. a modification, the closure member comprises a solid part 101, Fig. 7, which has radial ribs 104 and longitudinal ribs 106 to provide fluid passages. In a further modification (not shown) the closure member has fluid passages similar to those between the ribs 104, 106 of Fig. 7 but is a sheet-metal pressing. Also, the cap 36 is such that the part 23 terminates in one limb of an L-shaped passage in the cap, the other limb of which, extending horizontally, has a further nozzle at its outer end.
Patent GB-859473-A (GB)
Title: Improvements in or relating to electric circuits for regulating the supply of directcurrent loads
IPC: B28B7/36
Filed: 1957-09-17
Abstract: 859,473. Transistor two stable state circuits. SIEMENS-SCHUCKERTWERKE A. G. Sept. 17, 1957 [Oct. 31, 1956], No. 29292/57. Class 40(6). [Also in Group XXXV] In an automatic voltage regulator (see Group XXXV) two transistors 4, 5 have their bases and collectors cross connected to form a bistable trigger pair, and a forwardly conducting non-linear diode 7 is included in one crossconnection to prevent the pair from being triggered by a signal of less than a predetermined level. Alternatively a Zener diode may be used with appropriate polarity. A second diode 30 may optionally be connected in the other crossconnection.
Patent GB-663018-A (GB)
Title: Improvements in chimneys or funnels, in particular for land vehicles or marine craft
IPC: B63H21/32
Filed: 1949-11-17
Abstract: 663,018. Chimneys. SOC DES FORGES ET CHANTIERS DE LA MEDITERRANEE, and VALENSI, J. Nov. 17, 1949 [Nov. 17, 1948], No. 29408/49. Addition to 639.875. Class 25 A smoke stack having a fairing ,in the form of a symmetrical biconvex aerofoil as described in the parent Specification is characterized by the fairing being closed at the top and having lateral smoke outlets. Two substantially square lateral smoke outlets 11 are provided just below the flat top 9 of the fairing 8. The outlets 11 are disposed just to the front of the centre of the mean chord of the fairing. Specification 657,365 is referred to.
Patent GB-335740-A (GB)
Title: Improvements in the low temperature carbonisation of fuels and in apparatus therefor
IPC: C10B49/10
Filed: 1929-09-30
Abstract: 335,740. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 30, 1929. Addition to 601,975. Coking processes. - In the process of the parent Specification which comprises blowing hot gases through fuel so that it is maintained in active motion on the grate, and to effect carbonization without combustion or gasification, impact devices c are arranged over the fuel bed a, to limit the upward movement of the fuel, and equalize the passage through the charge of the hot gases from the blast box e. These devices are preferably of louvre formation and are of sheet metal or ceramic plates, sufficiently spaced apart, and sloped, to allow the fuel to drop back freely on to the grate h, but overlapping, and, in a modification, having bent extensions.
Patent GB-1418223-A (GB)
Title: Bowl supporting turntable for kitchen mixer
IPC: A47J43/044
Filed: 1973-06-22
Abstract: 1418223 Food mixers GENERAL SIGNAL CORP 22 June 1973 [23 June 1972] 29667/73 Heading B1C A food mixer turntable 101 is adapted to support a variety of mixing bowls having both planar and irregular bottom surfaces and for this purpose is provided with annular indentations 107, 108, Fig. 2 for locating the annular feet 130, 131 of bowls with irregular bottom surfaces and with selectively adjustable member 115, Fig. 3, which are adapted to contact the sides of planar bottomed bowls. Glass, plastics or stainless steel bowls may be mounted on the table and the table itself may be mounted in two different positions on the stand.
Patent GB-1087404-A (GB)
Title: Improvements in and relating to apparatus for flushing cisterns
IPC: E03D1/33
Filed: 1965-07-14
Abstract: 1,087,404. Flushing apparatus. A. C. FISHER. July 5, 1966 [July 14, 1965], No. 29808/65. Heading E1C. Apparatus for flushing cisterns comprises an inlet valve 13, a water-discharge fitting 11 on the floor of the cistern 12, a float 16, a flexible conduit 27 as shown between the float 16 and fitting 11 and a push-button 30 on a rod 31 to submerge the float 16 for a flush. The float 16 is pivoted on the valve 13 by means of ,an arm 26 attached to a strut 25. The float 16 has hollow side members 17, connected by a hollow member 18, bounding an open-topped chamber 21 communicating with the conduit 27 and members 17, which have apertures 22 where shown and are connected by a strut 23 engaged by the portion 32 of a rod 31 depressed by the button 30 for a flush. A pushrod with a button thereon may be slidably mounted in the cover cranked at the lower end and positionable beneath the float 16 to prevent it, if so desired, from falling to the bottom in flushing to give a partial flush. The float 16 may be connected to a cistern wall and a ball float with associated lever may be connected to the valve 13.
Patent GB-445875-A (GB)
Title: Improvements in and relating to steam generators having evaporating members in the combustion chamber
IPC: F22G7/08
Filed: 1934-10-18
Abstract: 445,875. Methods of generating steam. AKT.-GES. BROWN, BOVERI, & CIE, Baden, Switzerland. Oct. 18, 1934, No. 29867. Convention date, Nov. 15, 1933. [Class 123 (ii)] Steam generators having both evaporating and superheating surfaces in the combustion chamber, and particularly those in which high gas velocities are employed, have evaporating elements with one or more gas tubes running through them and disposed in front of the combustion chamber wall, and the heating gases passing through each element, heat steam in a superheating element associated with it. The gas tubes may comprise portions 1, 2, steam being generated in space 6 and superheated in space 9 of each evaporating element. Or the superheating elements may comprise U-tubes within a pipe built in the evaporating space above or at the side of the heating tubes which communicate with it. A further modification comprises adjacent evaporating and superheating members 41, 42, protecting the combustion chamber wall, the gas tubes 40 communicating with a tube 43 surrounding the superheater elements and itself enclosed by a wall 44.
Patent GB-843333-A (GB)
Title: Improvements in transporting liquefied hydrocarbon gases
IPC: F17C13/02
Filed: 1958-09-18
Abstract: 843,333. Refrigerating. CALIFORNIA RESEARCH CORPORATION. Sept. 18, 1958 [Sept. 26. 1957], No. 29962/58. Class 29 [Also in Group XXVIII] Refrigerant, e.g. liquid propane is circulated through tubes 15 within a propane storage tank 10 (see Group XXVIII) by compressors 20 drawing vapour from a suction vessel 21, and discharging at 180 p.s.i. through a condenser 22 to a liquid receiver 24 and from which liquid propane is passed through a reducing valve 25 to a flash drum 26 at about 15 p.s.i. and from thence through a line 18 and control valve 32 to a lower header 17 of the tubes 15 an upper header 16 of which is connected by a line 19 to the suction vessel 21 which is also connected to the vapour space of the flash drum 21. The compressors 20 are primed by drawing propane vapour from above the liquid in the tank 10 through a duct 33 and control valve 34 discharging into the line 19.
Patent GB-926219-A (GB)
Title: Improvements relating to conveyors
Inventor: CADMAN HUBERT WILLIAM
IPC: B65G37/00
Filed: 1960-08-31
Abstract: 926,219. Endless-belt conveyers. SOVEX Ltd. Aug. 25, 1961 [Aug. 31, 1960], No. 30037/60. Class 78 (1). An endless conveyer band 2 with a main vertical section 4 has a fluid-filled envelope 20 for pressing the articles being conveyed against the band or vice versa and is provided with auxiliary bands 7, 8 backed by metal plates 17, 18 to support flights 5, 6 making angles of 30 and 65 degrees with the horizontal in a transition section between the feed section 1 and the vertical section 4. Bands 3, 7 and 8 may be driven 3% faster than band 2. Specifications 801,447, 872,480, 873,542 and 888,067 are referred to.
Patent GB-617649-A (GB)
Title: Means for opening and closing a window casement
IPC: E05F11/12
Filed: 1946-10-08
Abstract: 617,649. Casement windows. KOLLER, E. Oct. 8, 1946, No. 30067. [Class 20(iii)] A casement window 1 is opened and closed by means of a bellcrank lever 4 pivoted on the side of the stationary frame 3 remote from the casement hinges 2. The lever swings in a vertical plane and one arm is linked to the "free" edge of the casement whilst the other arm is connected by a push rod 7 to a toggle or worm actuator 6. The lever 4 and link 5 may be curved about the hinge axis as centre and they may be duplicated.
Patent GB-924107-A (GB)
Title: Improvements in central heating boilers
IPC: F24H1/52
Filed: 1961-08-21
Abstract: 924,107. Hot-water boilers; hot-water supply systems. G. OSPELT. Aug. 21, 1961 [Aug. 24, 1960], No. 30131/61. Class 64 (1). In a central heating boiler, water heated in the lower part of the boiler flows upwardly through a cylinder 4 then downwardly through the annular space defined between this cylinder and the outer shell 1 of the boiler, and over a heat-exchanger 5 for draw-off water which is mounted around the upper part of the cylinder 4. Part of the water is then supplied through a pipe 35 to a central heating system and the remainder passes through pockets defined by apertures 18 and side channels 20 to the bottom of an outer water jacket 17 which communicates with an inner water jacket 23 surrounding a combustion chamber 27. An annular passage 32 for combustion gases separates the inner and outer water jackets. Water returning from the central heating system is supplied to the outer jacket 17 at 36 part flowing upwardly through the cylinder 4 and part entering the inner jacket 23 whence it flows upwardly at relatively high velocity through a pipe 26 disposed within the cylinder 4 to assist circulation over the heat-exchanger 5. The latter comprises three copper coils in parallel having an inlet 6 and outlet 7 (Fig. 2, not shown), and is connected to a removable cover 2 which is provided with a connection 41 to an expansion tank and a socket 42 for a thermostat which controls the burner 30 of the combustion chamber. A circulating pump 39 is provided in the central heating system.
Patent GB-536537-A (GB)
Title: Improvements in or relating to control mechanisms for maintaining potential variables at desired values
IPC: G05B11/50
Filed: 1939-11-16
Abstract: 536,537. Fluid-pressure servomotor-control systems. FARRINGTON, G. H. Nov. 16, 1939, Nos. 30230/39, 5646/40 and 9100/40. [Class 135] An automatic control system for maintaining a variable such as temperature, humidity, liquid level, fluid flow or pressure, pH concentration, voltage or amperage of an electric current, speed, the feeding of solid material or the intensity of light or sound at a desired value includes a series of fluid pressure balances or equivalent devices whereby a controlling effect is obtained having three components which at any given time are proportional respectively to the departure of the variable from the desired value, to the time integral of the said departure and to the time differential of the said departure. Second and subsequent derivative components may also be included. In the form shown in Fig. 1 a balance beam subject to a controlling impulse f and to the action of two bellows 7 , 8 actuates a leak-off valve on a supply conduit 5 fitted with an adjustable throttle 4 to produce a pressure difference p<SP>1</SP> across an adjustable restriction 9 proportional to the controlling impulse. The flow past the restriction 9 which is such that the flow is proportional to the pressure difference passes into the bellows 8 and associated chambers to produce a pressure p<SP>2</SP> proportional to the time integral of p<SP>1</SP>. A second balance beam is actuated by three bellows 11, 12, 13 to actuate a leak-off valve 14 on a supply conduit fitted with a throttle. The bellows 11, 12 are subject to the pressures in either side of the restriction 9 and the bellows 13 receives pressure through an adjustable restriction 15 under the control of the valve producing a pressure p across the restriction 15 proportional to the time differential of the controlling impulse. A third balance beam is subject to the action of a bellows 16 receiving the pressure p<SP>2</SP> and bellows 17 receiving a pressure p<SP>5</SP> equal to the sum of the pressures p<SP>1</SP> and p<SP>3</SP> and actuates a leak-off valve 20 on a throttled fluid supply conduit to produce a pressure in a bellows p<SP>6</SP> and the connecting devices proportional to the sum of these three pressures. The balance beams are loaded by weights 10, 10a 10b preferably having a value approximating half the pressure range of the device. These weights may, however, be replaced by bellows subject to the supply pressure or to a further regulating impulse. In a modification only two balance beams are employed: In this arrangement the bellows 12 and the third balance beam are omitted. In another form using three balance beams the first beam is actuated by a single bellows while the others are each acted on by four bellows.
Patent GB-908026-A (GB)
Title: Improvements in record changing phonographs
IPC: G11B17/14
Filed: 1958-09-22
Abstract: 908,026. Automatic gramophone apparatus. HANSEN, H. C. Sept. 21, 1959 [Sept. 22, 1958], No. 30256/58. Class 40 (2). In a record changing arrangement for a stack of records having oversize centre holes, wherein primary and secondary supporting elements are connected to move in opposite directions to release the lowermost record, and support the remainder respectively, the secondary supports have an outwardly facing inclined surface for engaging the wall of the record hole. Interleaved supporting members 38, 40, Fig. 1, having curved primary supports 42a, 42b, and curved inclined secondary supports 48a slide in guide channel 22 and are moved against a return spring 76 by the tapered end piece 98 on control rod 24, Fig. 4, to release the lowermost record. The lower edge of the inclined support is raised above the plane of the primary support by the maximum thickness of a record and the two, supports are resiliently attached by springs 68a turned over edges 62a of support 42a riding in notches 54a, 56a. An adaptor for playing large hole records on a narrow bent shank-type spindle gramophone in which slides of the type used in Fig. 1 are reciprocally actuated by a lever within the spindle whose normal function is to move laterally the bottom record, is described with reference to Figs. 9 and 10 (not shown). Specification 859,371 is referred to.
Patent GB-801045-A (GB)
Title: Improvements in liquid filters
IPC: B01D29/21
Filed: 1956-10-04
Abstract: 801,045. Filters. GENERAL MOTORS CORPORATION. Oct. 4, 1956 [Oct 7, 1955], No. 30258/56. Class 46. [Also in Group XXVII]. A liquid filter 36 is adapted to be mounted on a support, such as an I.C. engine 10 (see Group XXVII), having a recess 32 in communication with an inlet passage 30 and outlet passage 34. The filter 36 comprises a casing 38, detachably secured to the support 10 by a rod 44, a filter cartidge 42 and a cap 40 having its upper face engaging an angular seat 64 of the recess and its lower face engaging the filter cartidge 42 and having a divisional wall 68 to separate the inlet chamber 58 and outlet chamber 72, and pots 80 to allow liquid to flow from the inlet 30 into the filter casing. The cartidge 42, which may comprise two perforated members 48 separated by suitable filtering material 50, is urged against the cap 40 by a spring on the rod 44. A relief valve 78 is provided in the cap 40 to by-pass the liquid when the filter becomes clogged.
Patent GB-1039950-A (GB)
Title: Process for the preparation of aldehydes and ketones
IPC: C07C49/217
Filed: 1965-07-16
Abstract: a ,b -Unsaturated aldehydes and ketones are made by treating a compound of the formula R-C­C-CH(A)-R1 wherein R is an alkyl or phenyl group, R1 is a hydrogen or C1- 5 alkyl group or a phenyl group and A is an alkoxy, phenoxy, alkylthio, phenylthio, dialkylamino, diphenylamino or N-alkyl-N-phenylamino group, with potassium t-but-oxide in dimethylsulphoxide to yield an allenic compound R-CH = C = C(A)-R1 which is hydrolysed with an aqueous solution of strong mineral acid to the aldehyde or ketone R-CH = CH-CO-R1. It is not necessary to isolate the intermediate. It is preferred to use starting materials in which at least one of R and R1 is a phenyl group. Specified mineral acids are HCl and H2SO4. Many aldehydes and ketones and their 2,4-dinitrophenyl hydrazenes are specified.