baber/WOPTO huggingface dataset:
Patent GB-352017-A (GB)
Title: Improvements in and relating to high frequency receiving systems
IPC: H04B1/16
Filed: 1930-03-29
Abstract: 352,017. Valve amplifying circuits. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Allen, H. E. ; 364, Summit Avenue, Schenectady, New York, U.S.A.) March 29, 1930, No. 10094. Convention date, March 29, 1929. [Class 40 (v).] In a high-frequency receiver for use in connection with remote control systems such as described in Specification 291,384, [Class 40 (v), Wireless signalling &c.], a valve having a relay in the anode circuit is supplied with grid, anode and cathode voltages from an alternating - current source ; and means are provided for feeding-back impulses at the supply frequency from the plate to the grid circuit. The Figure shows a valve 1 having an input transformer 11 provided with a resistance 10 in the grid circuit to maintain the grid and anode voltages from the transformer 5 in phase. The reactive coupling 13 increases the sensitivity and the feed-back circuit may be tuned to the supply frequency by condenser 14. Specification 242,667, [Class 40 (v), Wireless signalling &c.], also is referred to. The Specification as open to inspection under Sect. 91 (3) (a) describes a circuit in which the reactive coupling 13 is omitted. This subjectmatter does not appear in the Specification as accepted.
Patent GB-664078-A (GB)
Title: Improvements in radio-frequency oscillators
Inventor: LANDMAN ALEXANDER
IPC: H03B5/10
Filed: 1949-04-14
Abstract: 664,078. Valve generating and receiving circuits. PLESSEY CO., Ltd. Feb. 2, 1950 [April 14, 1949], No. 10126/49. Drawings to Specification. Classes 40 (v) and 40 (vi). A multi-grid frequency changing stage comprises a valve with the control grid circuit tuned to the incoming carrier, the screen grid circuit tuned to the local oscillator frequency and the anode circuit tuned to the intermediate frequency. It is arranged that the local oscillator circuit is tuned to a frequency below that of the incoming carrier in order that the control grid circuit may be inductive at the local oscillator frequency. Oscillation is maintained due to feed-back over the screen grid to control grid capacity.
Patent GB-1025043-A (GB)
Title: Disazo-disulfide dyestuffs and method for making same
IPC: D06P3/60
Filed: 1964-03-10
Abstract: The invention comprises disazo dyes of formula <FORM:1025043/C4-C5/1> wherein R is the radical of a coupling component. The dyes are prepared by tetrazotizing 1 mole of 4,41-diamino-2,21-dichlorodiphenyldisulphid and coupling with 2 moles of a coupling component such as a hydroxynaphthanilide, 5-pyrazolone or acetoacetanilide. The dyes give red and yellow shades on cellulose fibres using a reduction-oxidation dyeing process.
Patent GB-1032891-A (GB)
Title: Paint spray booth
IPC: B05B14/46
Filed: 1963-03-14
Abstract: 1,032,891. Treating particle laden gases. HEAT & AIR SYSTEMS Ltd., and L. T. A. HOPKINS. June 12, 1964 [March 14,1963], No.10206/63. Heading B1R. Particle laden, particulary paint laden, gases are scrubbed in apparatus comprising a spray tooth of which the back wall 4 forms a partition with an adjacent tower, an open tank which is the base of the booth and tower,a compressed air supply unit 9, a gap 5 for the passage of laden air and entrained liquid between liquid deflector 18 and the liquid surface at the partition, a weir 15 beneath 18, liquid deflector 20 above 18 in the tower and an outlet duct 21 therefrom. In operation the paint over-spray either falls into portion 3 of the tank or is induced by the air stream through gap 5, where it entrains the surface water, 9 is impelled by the weir and deflectors in a turbulent course into the tower; the paint laden water droplets separate by gravity. from the air stream, falling into the tank through openings 12 of side compartments 11, the scrubbed air being withdrawn through 21 by a fan.
Patent GB-260864-A (GB)
Title: Improved hoe, for agricultural and like purposes
IPC: A01B1/06
Filed: 1926-04-19
Abstract: 260,864. Collins, E. M. April 19, 1926. Hoes.-A hand hoe of the Dutch, thrust, or scuffle type is provided with a grid or grating to collect and retain weeds &c. The grating shown consists of spaced bars 5 integral with the blade 1, side-bars 3, and shank 4, and curved below the plane of the parts 1, 3, 4 so as to form a receptacle. The grating may be made separately of wire mesh and fitted on the hoe.
Patent GB-137453-A (GB)
Title: Improvements in or relating to washing or cleaning machines
IPC: D06F39/00
Filed: 1919-04-24
Abstract: 137,453. Henning, A. April 24, 1919. Cleaning clothes, fabrics, and the like.-In cleaning- machines having superposed work and cleaning- fluid-chambers which, in operation, are reversed to allow the fluid to pass from the lower to the upper chamber, the lower chamber is made detachable so that it may be used as a reservoir or transport container, and is provided with means for closing it when detached. The chambers a, b are held together by a bayonet-joint c, c and have a gas-tight joint at d. A valve e is carried in a bushing f secured to the lower chamber b, and is automatically closed by a spring r when the chamber a is detached. The bushing f, together with packing d, makes joint with a ring g secured to the chamber a. When the workbasket i is placed in the chamber a, the bottom bears against the valve spindle and opens the valve. A false bottom k is provided and a sliding plunger l. In a modification, the upper part of the lower chamber is made in one with the chamber a, while the lower part is attached by screw collars.
Patent GB-165258-A (GB)
Title: Improvements in garment pressing machines
IPC: D06F71/34
Filed: 1920-04-13
Abstract: 165,258. Marks, E. C. R., (Troy Laundry Machinery Co., Ltd.). April 13, 1920. Ironing-machines with pressing action only.- The head 15 of an ironing-press is mounted on a pivoted frame 14 operated by a toggle and footlevers adapted to lock automatically in the pressing position. The frame 14 is pivoted at 18 and tends to rock to open position by reason of a spring 53 connected to a foot-lever 48 pivoted at 47. A toggle-lever 41 linked to the frame 14 by the member 40 carries at its bifurcated end 43 a grooved roller 44 for engagement by the lever 48 and a loose cam provided with a straight edge 52. When the foot-lever 48 is depressed in order to straighten the toggle and effect the pressing operation the end 46 of a pedal-lever 50, carried by the foot-lever, falls off the cam 45 and into engagement with its edge 52 and so locks the toggle gear and pressing head in position. In order to open the machine, the pedal lever 50 is depressed to release it from the cam edge and the spring 53 then breaks the toggle and raises the head. Steam for treating the articles passes from a chamber 22, Fig. 4, through a valve 32 and pipe 33 into a longitudinal channel 35 in the back from which it flows through ducts formed by grooves in a plate inserted in the channel. The steam for heating the buck traverses the chamber 22 and thus prevents the collection of condensation water in the valve casing 38.
Patent GB-262323-A (GB)
Title: A "cleaning or absorbing pad" for removing ink from office rulers
IPC: B43L7/00
Filed: 1926-04-19
Abstract: 262,323. Darling, H. W. April 19, 1926. Rulers.-A ruler a is provided with a tubular pad c of printers' blanket or other absorbent substance with a covering b of leather or other material to protect the pad, which is free to slide along the ruler.
Patent GB-610389-A (GB)
Title: Improvements in balance wheels
IPC: G04B18/00
Filed: 1946-04-03
Abstract: 610,389. Balances for timepieces. NEWTON, E. P. (Montres Era, Soc. Anon. C. Ruefli-Flury & Cie.). April 3, 1946, No. 10356. [Class 139] A balance wheel for clocks and watches has at least one incision in its rim, a portion of the rim being partially detached therefrom, but connected therewith by a deformable portion whereby said partially detached portion is adapted to be forcibly displaced to regulate the arc of movement of the balance wheel. As shown in Fig. 1, the rim 2 of a balance wheel 1 is provided with two slots 3, 3' shaped as shown to provide lugs 5, 5<1> having neck portions 6, 6' respectively. The lugs 5, 5' may be radially displaced by a pair of pincers to regulate the arc of movement of the balance wheel. In another embodiment, Fig. 3, the balance wheel rim 2 is provided with two (or more) U-shaped slots 7, 7<1> and the arc of movement of the balance is adjusted by radial displacement of the tongues 10, 10'. Specification 605,690 is referred to.
Patent GB-689433-A (GB)
Title: Improvements relating to the conversion of liquid fuels to fixed gases
IPC: C10J3/00
Filed: 1951-05-03
Abstract: 689,433. Fluid actuation of switches. FRANCIS, C. B. May 3, 1951 [May 12, 1950], No. 10397/51. Class 38 (v) [Also in Group XII] A pressure-actuated switch for an oil gas generating process (see Group XII) consists of a U-tube 74 filled with mercury to a level 90 and secured by a rubber collar 75 to the gas holder. A contact 77 consisting of a split copper tube internally lined with rubber 78 is normally engaged by a contact 81, also consisting of copper tube, carried by a glass float 80 and the lower edge of which is chamfered and bears on a seating formed by expanding and grinding a flat face on tube 77. The pressure at which the switch operates is selected by adjusting the position of the tube 77 on the U-tube limb.
Patent GB-450712-A (GB)
Title: Improvements in and relating to gas governor apparatus
IPC: G05D11/00
Filed: 1935-04-03
Abstract: 450,712. Pressure-reducing valves. KEITH & BLACKMAN CO., Ltd., J., and KEITH, G., 27, Farringdon Avenue, London. April 3, 1935, No. 10412. [Class 135] [See also Group XI] In apparatus for automatically maintaining a proportional delivery of gas and air to gasconsuming appliances, a single casing 1 houses a diaphragm-actuated main gas governor valve 2, a diaphragm-actuated relay valve 3 controlling the valve 2, and a ported Venturi tube 4 in which the governed gas mixes with air, which tube extends through the casing between the diaphragms. The casing 1 has upper and lower partitions 8, 13 defining a space 6 whence the governed gas is drawn through ports 5 by air flow in the Venturi. An end cover 7 with the partition 8 defines a control chamber 32 and a chamber 19 communicating through filters 18 with the gas inlet 17. These chambers are separated by the diaphragm 9 connected to the main valve. This valve carries an orifice member 33 allowing gas to leak into the chamber 32 and a seat member 16 for the relay valve, the opening of which vents the chamber 32. An end cover 12 with the partition 13 defines spaces 34, 36 separated by the diaphragm 14 of the relay valve. The spaces 6, 34 are in communication through a hole 35. The space 36 is connected with the atmosphere or with a pressure source to which it is desired that the diaphragm 14 shall respond. The valve 3 is connected by a rod 15 passing through the valve seat orifice 11, and a pin-and-spring arrangement 37, 38 which prevents binding of the rod 15, with the diaphragm 14. The valve 2 fulcrums by means of spaced legs 29 on a shelf 30 co-planar with the valve seat 10, the legs being slightly loaded by a leaf spring 31 clamped between the legs 29. The available area of the ports 5 may be adjusted by a split conical sleeve 22 connected by a link 25 to a screw 24 located eccentrically in a plug 23 with a polygonal head. The screw 24 may be tightened to jam the link 25 against a surface 27. Specification 16711/15, [Class 135], is referred to.
Patent GB-249690-A (GB)
Title: Improvements in and relating to variable electric resistances
IPC: H01C10/36
Filed: 1925-04-21
Abstract: 249,690. Williams, C. H. A., and U.S. Radio Co., Ltd. April 21, 1925. Variable resistances.-In a combined rheostat and switch of the type in which a cam on the rheostat spindle operates the switch, a number of switch members are combined with one rheostat. Each switch member consists of an elastic tongue f which normally makes contact with a member h but is moved by a cam j to make contact with a member g when the rheostat a is " off."
Patent GB-539640-A (GB)
Title: Improvements relating to shelf supports, knobs and the like
IPC: A47B96/06
Filed: 1940-06-15
Abstract: 539,640. Fastenings for shelf supports, knobs &c. TINNERMAN PRODUCTS, Inc. June 15, 1940, No. 10413. Convention date, Feb. 23, 1940. [Classes 52 (i) and 52 (v)] [Also in Groups XXII and XXV] A shelf support, knob &c. made particularly for use in refrigerators is provided with a connecting stem 15, Fig. 1, entering a socket opening and a sheet metal clip 20 having legs 22, 23 extending in the same general direction as the stem and embracing the stem. At least one of the legs is provided with outstanding wings 30, 31 forming shoulders adapted for snap fastening engagement in the socket opening. The clip may be formed from a metal strip, Fig. 3, bent at the dotted lines to form the wings 30, 31 anchoring prongs 34 and flanges 25, 26. Fig. 7 shows a modified clip having flanges 45, 46, yielding wings 52, 53 and locking prongs 54.
Patent GB-498919-A (GB)
Title: Improvements in or relating to an internal combustion engine with means for regulating the cylinder compression ratio thereof
IPC: F02B75/22
Filed: 1937-04-13
Abstract: 498,919. Cylinders. TSUENDA, K., and HIRONAKA, Y. April 13, 1937, No. 10491. Convention date, April 13, 1936. [Class 7 (ii)] The compression ratio of each cylinder is varied by an auxiliary piston 6 in the head which is loaded by liquid under a pressure, regulated by an escape valve controlled in accordance with the running of the engine, e.g. by induction pipe suction, as shown, explosion pressure, or exhaust gas temperature. In a multi-cylinder V-engine, cylinder cooling-water is supplied by an engine-driven pump 17 through non-return valves 12 to fixed passages 7 leading to the bases of the pistons 6. The water spaces are connected by non-return valves 13 and a pipe 19. The water returns to the cylinder jackets past a non-return valve 21 except when the valve is held on its seat, by induction pipe suction acting, through a, pipe 33, on the underside of a spring-pressed piston 32. The Specification as open to inspection under Sect. 91 comprises also controlling the valve 21 manually. This subject-matter does not appear in the Specification as accepted.
Patent GB-947231-A (GB)
Title: Improvements relating to heating, cooling and like apparatus of vehicles and aircraft
Inventor: WARE JAMES CAREW
IPC: B60H1/00
Filed: 1961-03-22
Abstract: 947,231. Thermocouples. J. STONE & CO. (DEPTFORD) Ltd. March 22, 1962 [March 22, 1961; Dec. 5, 1961], Nos. 10492/61 and 43565/61. Heading H1K. [Also in Division F4] Apparatus for heating, cooling, air.conditioning, and/or refrigerating all or part of a vehicle or aircraft interior includes a heat transfer unit comprising an assembly of Peltiereffect thermocouple pairs which transfers heat between two streams of fluid. In a system as shown, Fig. 1, for cooling or heating a railway coach, thermocouple assemblies 1 are situated in the coach roof 2 and have thermal insulation 3, e.g. glass wool, between them, the exterior and interior ends of the assemblies being in thermal contact with fins 5 and 6 respectively. Ambient air is forced through a duct 7, which extends longitudinally of the coach and may be partly recessed in the roof 2, to pass over the fins 5, by reversible axial flow fans 10 and/or the ram pressure due to the motion of the vehicle, while a controlled amount of fresh air together with recirculated interior air is drawn by fans 13 through parallel ducts 11, Fig. 3, extending transversely across the coach, over the fins 6, and is delivered to a distribution duct 15. The internal flow may alternatively be passed in counterflow to the external flow. For maximum efficiency the thermocouple elements may be tapered towards the cold end, as in Fig. 1, if they are used for pumping heat in one direction only, while if a reversing switch is included in the supply circuit to enable heat to be pumped through the elements in either direction, the latter should be tapered towards both ends to give a barrel-shaped cross-section. For an A.C. power supply, the output of the elements may be controlled by using a transformer having several tappings to supply a rectifier with different voltages, while for a constant voltage D.C. supply the groups of elements may be connected in series, in parallel, or in seriesparallel as necessary. If the current is switched off, flow of air over the ends of the elements should be prevented. In a further embodiment, Fig. 4, a compartmental railway coach 22 has an automatically controlled main airconditioning apparatus of known type connected to a distribution duct 24 and a return duct 27 which both run the length of the coach. A degree of temperature control in the individual compartments is provided by means of a thermocouple assembly 30 above each compartment, which enables heat to be pumped between the air supplied to the compartment 23, through a branch duct 26, and air in the return duct 27, this air having been discharged from the compartments to a corridor 28 and passed thence to the duct 27. A changeover switch in the compartment has settings " high," " medium " and " low," in which inlet air is heated, untreated and. cooled respectively, a temperature difference of plus or minus 2.5 F. on the auto-controlled setting being economically attainable.
Patent GB-1254213-A (GB)
Title: Consoles with sliding drawers
IPC: E05B65/46
Filed: 1969-02-27
Abstract: 1,254,213. Cabinets. LAB-VOLT (QUEBEC) Ltd. Feb. 27, 1969, No. 10561/69. Headings A4B. A console (1) houses a drawer 2 supported on a slideway secured to the console, the slideway being provided with means which is engageable with the drawer 2 and against which the drawer is pressed by a spring 20 in the closed position of the drawer, and the console being provided with a small opening 24 to receive a screwdriver B to lever the drawer out of engagement with the locking means against the action of the spring 20. In one embodiment, Figs. 2, 4 a leaf spring 20 is carried by a cross rail 13 of the slideway and bears on the upper edge of the rear wall 9 of the drawer 2. Inner flanges 14, 15 of slide rails 11, 12 engage recesses (16, 17) in the rear wall 9. Ejection of the drawer 2 by the spring 20 after release of the locking means is limited by engagement of a stop 26 on a drawer side 8 in a recess 27 in a slide rail flange 15. The locking means comprises the rear ends of the flanges 14, 15 behind which a downwardly extending part of the rear wall 9 engages. The front wall 3 of the drawer 2 may carry an insulating board 6 for mounting components of an electric circuit. In another embodiment, Fig. 8, the locking means comprises upturned ends 33, 34 of a pair of slide rails 31, 32. Ejection of the drawer 2<SP>1</SP> is limited by engagement of stops 37, 38 on the drawer sides 7<SP>1</SP>, 8<SP>1</SP> in openings 35, 36 in the rails 31, 32. Further stops 39, 40 limit upward displacement of the rear end of the drawer.
Patent GB-141735-A (GB)
Title: Improvements in or relating to bedsteads
IPC: A47C19/12
Filed: 1920-04-15
Abstract: 141,735. Jenot, L. March 15, 1919, [Convention date]. Folding bedsteads.-A folding bedstead comprises head and foot panels, each composed of pivoted members 3, 4, 6, 7, 19 and 20, together with uprights 31, 32, and a bottom composed of a central member 40 and pivoted transverse bars 44. To fold the bedstead, the members 3, 4 are turned about their pivots 8, 9, releasing the locking-means 15 and allowing the parts 1, 40, 44 to be folded or collapsed, as shown in dotted lines in Fig. 2. The members 4, 20 and 32 are thus brought parallel with one another, and are finally turned down upon the folded bed bottom.
Patent GB-761130-A (GB)
Title: Improvements in or relating to the mechanical winning of coal, and means therefor
IPC: E21C27/42
Filed: 1953-04-17
Abstract: 761,130. Mining minerals. DIRECTIE VAN DE STAATSMIJNEN IN LIMBURG. April 17, 1953 [April 18, 1952], No. 10587/53. Addition to 693,081. Class 68 (1). The method of mining mineral disclosed in the parent Specification is modified in that the series of identically constructed ploughs previously employed is replaced by a series of ploughs 8, 10, 16 and 19, each of differing construction and/or is supplemented by one or more cutting machines of a different type connected in series with the ploughs for movement therewith. The individual ploughs or cutting machines are designed according to the conditions existing at the zones of the face along which they are hauled to and fro. The layout of the mine workings may be such that the projections of the zones on to a horizontal plane may be at an angle with one another. Handling means, such as a conveyer, is provided at each zone for transferring mineral from that zone to the handling means of the adjacent zone. Specifications 721,561 and 723,034 [Group XXII] are referred to.
Patent GB-1337607-A (GB)
IPC: B01D9/00
Filed: 1971-04-22
Abstract: 1337607 Silver halide emulsions EASTMAN KODAK CO 22 April 1971 [23 April 1970] 10700/71 Heading G2C An emulsion containing silver halide grains of up to 2 microns is produced by simultaneously adding aqueous silver salt and halide solutions to a stirred aqueous solution containing peptizer and ripening agent, the additions being carried out in two stages, less than 40 per cent, preferably less than 20 per cent, of the reactants being added while the precipitation medium is maintained at a temperature of at least 55‹C., preferably at least 70‹C., and the rest of the reactants being added while the precipitation medium is maintained at a lower temperature, preferably at least 20‹C. lower. Other metal ions may be occluded at any convenient stage of precipitation.
Patent GB-623152-A (GB)
Title: Improvements in swingable garden seats or hammocks
IPC: A47C3/023
Filed: 1947-04-22
Abstract: 623,152. Swing seats. ARNOTT, J. M. April 22, 1947, No. 10720. [Class 52 (ii)] A swingable garden seat comprises a tubular frame support 1 from which a tubular frame 2 is supported by pivoted links 4. The seating fabric 8 is carried by removable bars or tubes 11 which fit on hooks 6, 7, the fabric preferably passing over a stiffening tube 5 at the front edge of the seat.
Patent GB-591092-A (GB)
Title: Improvements in or relating to crystal contacts for use, for example, as rectifiers
IPC: H01L29/00
Filed: 1945-04-28
Abstract: 591,092. Detectors. GENERAL ELEC. TRIC CO., Ltd., BRITTAIN, F. H., and BUCKINGHAM, J. April 28, 1945, No. 10779. [Class 40 (v)] In a detector of the crystal and wire' type, the surface of the crystal round the end of the wire is covered by a thin layer of an insulating solid of low dielectric loss. which layer closely surrounds the wire .so as to prevent lateral displacement of the said end of the wire rolative to the surface of the crystal. The dielectric may be n-butyl methacrylate, which is applied to the crystal in liquid form. After satisfactory adjustment of the wire contact, the liquid is polymerised to form a solid layer by heating for about 8 hours at a temperature of 70-90‹ C. Alternatively the layer may be formed of a high melting point wax or shellac, which is applied in powder form and melted after the contact is adjusted to flow round the contact and form a solid layer on cooling. Specification 576,154 is referred to.
Patent GB-1523203-A (GB)
Title: Method of and apparatus for generating a protective reducing atmosphere
IPC: C01B3/04
Filed: 1976-03-17
Abstract: 1523203 Reducing atmosphere SOC CHIMIQUE DE LA GRANDE PAROISSE AZOTE ET PRODUITS CHIMIQUES 17 March 1976 [11 April 1975] 10795/76 Heading C1A A reducing atmosphere formed at least partly of N 2  and H 2  is generated by admixing an O 2 - containing atmosphere issuing from a metal heat treating installation with cracked NH 3  and subjecting the mix to a catalytic deoxidation, which can be initiated at ambient temperature, at between 0 and 600 C., and subsequently refrigerating the O 2 -free gas to remove condensable substances.