baber/WOPTO huggingface dataset:
Patent GB-314826-A (GB)
Title: Improvements in the manufacture of 3:7-tetraalkyldiamino-xanthones
IPC: C09B11/28
Filed: 1928-03-03
Abstract: 314,826. Imperial Chemical Industries, Ltd., Rodd, E. H., and Stocks, H. H. March 3, 1928. 3: 7 - Tetraalkyldiaminoxanthones, which are useful as dyestuff intermediates, are prepared from 3 : 7-tetraalkyldiaminoxanthenes by treating with sulphur, advantageously in the presence of an organic solvent or diluent, to form the xanthiones and converting the latter into the corresponding xanthones, e.g. by warming with acids. In an example, 3 : 7 - tetramethyldiaminoxanthene is boiled with sulphur in the presence of xylene, and the resulting xanthione, which is precipitated, is treated with hydrochloric acid at the boil. The 3 : 7-tetramethyldiaminoxanthone is separated by addition of alkali. In a second example, 3 : 7- tetraethyldiaminoxanthene is heated with sulphur in the presence of sodium sulphide and xylene. The latter is distilled off, and the residue, after being washed, is decomposed with hydrochloric acid as before.
Patent GB-717614-A (GB)
Title: Improvements in tine mounting means for swath turners, side-delivery rakes, tedders and the like
IPC: A01D80/00
Filed: 1952-03-17
Abstract: 717,614. Haymaking. HUEBNER, H. A., and WORREL, R. M. March 17, 1952 [July 16, 1951], No. 6825/52. Class 6 (3) A tine for a side-delivery rake, swath-turner, or tedder is mounted by means of an integral coil and shank under resilient compression so that the convolutions of the coil are pressed into frictional engagement with the mounting surface. The tines 33 are made of wire in pairs connected by forward and rearward helical coils 27, 28 and a shank 32 clamped by a plate 38 to the rim 13 of a rake wheel. The wheel rotates freely by ground contact in the direction of the arrow 29 in a plane inclined to the direction of travel. When the bolt 43 is tightened, the shank 32 engages one side of the rim 13, and the convolutions of the coils are pressed with varying pressure against the rim, the pressure gradually decreasing from a maximum at the point 60 through the points 61-63 to provide frictional vibration-damping means as the tines operate on the crop.
Patent GB-470623-A (GB)
Title: Improvements in and relating to television receivers
IPC: H04N5/64
Filed: 1937-03-09
Abstract: 470,623. Television. IDEAL WERKE AKT. - GES. FUR DRAHTLOSE TELEPHONIE. March 9, 1937, No. 6881. Convention date, March 14, 1936. [Class 40 (iii)] A cabinet for a television receiver using a cathode-ray tube is in the form of a vertical prism of oval - like crosssection, the screen 3 and loudspeaker 4 being arranged one above the other on a small side of said prism and surrounded by a common frame 6 which also encloses the dial 5. The front end is formed with doors 1, 2 opening from projecting ends 16 of the cabinet which serve to keep out extraneous light. The cabinet is provided with openings 20 for ventilation and wheels 18, 19.
Patent GB-538108-A (GB)
Title: Improvements in and connected with automatic circuit breakers and similar electric switchgear
IPC: H01H71/58
Filed: 1940-04-18
Abstract: 538,108. Electrically-released switches. CRABTREE & CO., Ltd., J. A., McLOUGHLIN, H. F., and HILL, W. E. April 18, 1940, No. 6986. Divided out of 536,731. [Class 38 (v)] Each phase of motor-protective switch comprises an electromagnet d in a separate compartment c of an insulating housing and having a lever g' engaging a slot f in a common insulating trip bar f which bears on a lever t adjustable as described in Specification 536,731 for currentsetting purposes. A slot f<2> in the bar receives the end of a two-armed blade spring h, h', the arm h<1> of which carries a contact i co-operating with a fixed contact j. Part h is riveted at n to a U-shaped bracket o the limbs of which are slidable on a resetting plunger m which is slidable in the limbs of a fixed bracket q. The plunger is urged upwards by a spring p<1> between the lower arm of bracket q and a collar r on the plunger, and the bracket o and springs h, h' are urged downwards by a spring p between the knob m<1> and the upper limb of bracket o, relative movement being normally prevented by the engagement of a button k on blade h with a flange l on the plunger. When the trip bar f breaks this engagement, the bracket o drops and separates contacts i, j, while the plunger m rises and exposes an indicating mark m<2> on the knob m', both being assisted by the upper bracket arm q. To reset, the plunger is depressed to re-engage k with l, and is then released to allow i to reengage j. The plunger may have auxiliary contacts for breaking an indicating or interlocking circuit associated with other apparatus when it is depressed for resetting. The Specification refers also to thermal tripping on prolonged overloads, to fuses operative outside the range of the electromagnetic and thermal trips, and to Specification 538,109, [Group XXXV].
Patent GB-323421-A (GB)
Title: Improvements in and relating to swimming paddles
IPC: A63B31/08
Filed: 1929-03-04
Abstract: 323,42,1. Hammett, H. March 4, 1929. Swimming appliances. -A paddle for attachment to the back of a swimmer's hand comprises a flat plate 1 with a flange 2 engaging the inclined sides' 4 of a second plate 3 to form a hollow body. A rigid loop e is secured to the plate 1 to engage the user's fingers.
Patent GB-1507892-A (GB)
Title: Didactic apparatus
IPC: G09B23/04
Filed: 1975-02-19
Abstract: 1507892 Educational appliances PHILOGRAPH PUBLICATIONS Ltd 9 Feb 1976 [19 Feb 1975] 7028/75 Heading G5G An apparatus for teaching about areas and volumes comprises a base A, transparent walls B and C and a plurality of unit cubes, each of the base and walls having unit squares marked thereon. The walls may have a height of one unit or more than one, e.g. 10 units. The apparatus is preferably made from a transparent methyl methacrylate polymer. It may be of unitary construction, but is preferably formed with walls which are initially separate and then locked to each other by a T joint 24 and to the base by tongue and slot joints (Fig. 4, not shown). Preferably the squares and cubes have 1 cm. sides.
Patent GB-364928-A (GB)
Title: Improved means for using the cylinders of internal combustion engines for inflating pneumatic tyres
IPC: F04B41/04
Filed: 1931-03-06
Abstract: 364,928. Cylinder attachments for inflating tyres; sparking-plugs. ROCHER, M., Cenon, Vienne, France. March 6, 1931, No. 7040. Convention date, March 20, 1930. Addition to 342,328. [Classes 7 (ii) and 7 (iv).] The device, described in the parent Specification, for enabling a cylinder to be utilized for inflating tyres i s combined with a sparking-plug and provided with an axial cap member for putting it into action. The plug insulator 83 is mounted on a sleeve 82 having flats 84 and a screw thread 86 ; normally a packing 91 is pressed against a seating on the plug body 78. The cap member comprises a casing 92 having bayonet slots 98 for engagement with pins 79 on the plug body 78 and a key 96 which engages the flats 84 and on rotation withdraws the insulator 83 until tight joints are made at 100, 101. Air is then drawn into the cylinder through orifices 80 and an annular valve 81, and delivered through passage 85 and a valve 94. In a modification, members 92, 96 are omitted, the flats 84 being rotated by a spanner, and the air is delivered through passages in the insulator to a delivery valve in the cap member, coaxial with the plug ; the high-tension lead may in this case be connected below the delivery valve. Specifications 345,364 and 346,199 are also referred to.
Patent GB-575909-A (GB)
Title: Improvements relating to centrifugal fans
IPC: F04D29/44
Filed: 1944-04-17
Abstract: 575,909. Centrifugal fans. JENNINGS, H. W. K. (Sturtevant Co., B. F.). April 17, 1944, No. 7073 [Class 110 (i)] The inlet box of a centrifugal fan 5, having the inlet 12 in a plane parallel to the fan shaft and the outlet to the fan centrally around the shaft, is provided with a vane 14 extending from the inlet towards and perpendicular to the shaft, to improve efficiency by ensuring that there is no empty space in the corner of the inlet box opposite to the inlet and outlet. The inlet box may be divided into two by a vane 15, at right-angles to the inlet 12 and the vane 14, which prevents spinning movement of the entering air ; the shaft lies in a gap in the vane 15. The vanes form a bracing for the walls of the inlet box.
Patent GB-538471-A (GB)
Title: Improvements relating to jacquard mechanisms
IPC: D03C3/02
Filed: 1940-04-20
Abstract: 538,471. Looms. LUCAS, A. April 20, 1940, No. 7153. [Class 142 (i)] In Jacquard mechanism having a separate hook for each warp thread, each hook is directly connected to the corresponding mail carrying the eye for the warp thread without any intervening cord or harness and is arranged vertically above the warp thread which it controls so as to impart a direct vertical lift to each mail. The griffe A, grid D, cord cylinder E, needles d spring box E<SP>1</SP> and rows of hooks C extend across the full width of the machine, each hook C being directly connected at its lower end to a mail G having an eye g for a warp thread wand weighted by a tongue g<SP>1</SP>.
Patent GB-511834-A (GB)
Title: Improvements in and relating to erecting devices for constructing aircraft
IPC: B64F5/10
Filed: 1939-03-06
Abstract: 511,834. Work benches. JUNKERS FLUGZEUG-UND-MOTORENWERKE AKT.-GES. March 6, 1939, No. 7256. Convention date, Oct. 1, 1938. Drawings to Specification. [Class 61 (ii)] [Also in Groups XXXIII and X] An erecting device for use in constructing aircraft parts includes an under-part. or support composed of tubes and tubular angle-pieces such as T-pieces. As shown, the support is assembled from standard commercial tubes, viz., flanged T-pieces and flanged lengths of tubing. Adjustable feet are connected to the outer flanges. The feet may be combined with rollers which may be flanged.
Patent GB-780845-A (GB)
Title: Improvements in or relating to superheater arrangements for water tube boilers
IPC: F22G5/04
Filed: 1953-03-17
Abstract: 780,845. Steam superheaters. SUPERHEATER CO., Ltd., and SOUTH, A. J. March 17, 1954 [March 17, 1953], No. 7309/53. Class 123(3) In a water-tube steam boiler having a multistage superheater 3, 4, 5 located in a gas duct 6 between the boiler proper and an economizer (not shown), a by-pass duct or ducts 11 with a damper or dampers 10 is arranged alongside one or more of the superheater stages, say the first and second 3, 4, and main dampers 7, 8 are disposed behind one of the said by-passed stages in the direction of flow of the combustion gases. The arrangement is such that the combustion gases will by-pass the superheater stages alongside the duct or ducts 11 when the main dampers 7, 8 are closed and the bypass damper or dampers 10 are open. All the dampers extend in a direction transversely to the superheater elements, and the elements of adjacent stages may be connected by a joint comprising an apertured bar 13 to opposite sides of which the elements of the two stages, respectively, are individually connected.
Patent GB-487805-A (GB)
Title: An improved method of treating "waste water" in the manufacture of paper and similarly prepared cellulosic fibrous materials
IPC: B03D1/02
Filed: 1937-03-15
Abstract: 487,805. Treatment of white water in paper manufacture &c. KARLSTROM, A. M. R. March 15, 1937, No. 7496. [Class 96] Sulphonated vegetable, animal, mineral oils, or petroleum or naphthenic acids, or their salts or derivatives, which contain at least 16 carbon atoms per molecule are precipitated in white water in paper manufacture to flocculate fine suspended particles, e.g. to facilitate separation by air or gas flotation, filtering, or settling. Unsulphonated oils, e.g. of pine or paraffin may also be added, e.g. with turkey red oil. Precipitation may be caused by compounds of earth metals rare earths, alkaline earths, iron or chromium, e.g. by alum, which may be present in or added to the white water.
Patent GB-471910-A (GB)
Title: Improvements in or relating to brake control mechanism
IPC: B60T7/10
Filed: 1936-03-12
Abstract: 471,910. Brake-operating mechanism. NEATE, R. W., and CHANDLER, F. March 12, 1936, No, 7510. [Class 103 (i)] In means for effecting a quick initial takeup of a brake operating cable in applying the brakes, the cable passes around two abutments diametrically arranged on a disc or other angularly movable element which is turned to apply the brakes, the cable being then anchored to a fixed point or the cable after passing around one such movable abutment and a fixed abutment is anchored to the angularly movable element. A ratchet disc 1 mounted on a spindle 2 has secured thereto a bar 9 between which and the disc are mounted freely pulleys 6, 7, 71, the pivot of the pulley 6 being the spindle 2. The brake operating cable 11 passes around the pulleys and is attached at its one end to the fixed casing 3. The disc is turned to apply the brake by a hand lever 4 freely mounted on the spindle 2 and carrying a pawl 5 which in the extreme position shown of the hand lever is disengaged from the disc by engagement with the casing. The disc is locked against return movement by a spring urged pawl 12 which may, as shown, be releasable by a pedal 14 or by the hand lever in the extreme position shown. During rotation of the disc through 90‹ in a counter clockwise direction from the release position shown, the amount of cable taken up will be substantially the sum of the displacements of the pulleys 7, 7<1> but during the following 45‹ there will be very little taken up, so that the brakes are actually applied with an increased mechanical advantage. An additional pulley 16 may be provided on the disc to engage the cable during the latter part of the disc movement to prevent substantial change of position of the lead in part of the cable. The disc may be turned by repeated strokes of the hand lever. In a modification the position of the pulley 7 and the point of anchorage of the cable are exchanged, that is, the cable is anchored to the disc adjacent the position of the pulley 7 and passes around a pulley mounted on the casing adjacent the anchorage point shown. The device may be used for operating the brakes of a trailer vehicle from the tractor.
Patent GB-959422-A (GB)
Title: Treatment of recirculating water
IPC: C02F5/00
Filed: 1962-02-27
Abstract: Acid components are removed from water by treatment with the hydroxide or salt of ammonium, substituted ammonium or heterocyclic quaternary ammonium other than ammonium chloride and subsequent treatment with magnesium oxide.
Patent GB-489793-A (GB)
Title: Improvements in the design and construction of pressure sensitive metal capsules
IPC: G01L7/08
Filed: 1937-03-16
Abstract: 489,793. Making pressure-sensitive capsules. NUTSFORD, A. March 16, 1937, No. 7677. [Classes 83 (ii) and 83 (iv)] Stamping.-The flexible diaphragm 10 of a pressure-sensitive capsule 10-15, Fig. 4, for indicating controlling or recording mechanism is prevented from subsequent deformation by stamping it to corrugated form by using its own pre-formed thick corrugated back 15 as a die under a punch 17, the diaphragm 10 then being secured at its edge to its back 15, e.g. by simultaneously cupping the plate to form a flange thereon which may also be grooved and then soldering the flange to the back 15. In pre-forming the back 15 it is also drilled &c. to provide an entrance channel 19 for fluid pressure and holes 20 to allow of fixing the fittings of the fluid pipe thereto. A rubber block 14 provides a backing for the diaphragm during stamping. The Provisional Specification states that the diaphragm may be interlocked to its back 15 during stamping to shape. A diaphragm may be attached to each side of the thick part 15 for use either as a single capsule of increased capacity or instead of two separate capsules when provided with independent pressure fluid channels.
Patent GB-980193-A (GB)
Title: Improvements in or relating to a welded joint,for knotter hooks in binding attachments of agricultural machines
IPC: B23K33/00
Filed: 1962-02-27
Abstract: 980,193. Welding by presure; making knotter hooks. F. CLAAS. Feb. 27, 1962 [Feb. 28, 1961], No. 7692/62. Headings B3A and B3R. A welding joint for joining the head to the stem of a knotter hook for a binding attachment of an agricultural machine comprises interengaging centring means on the head and the stem enclosing a pressure weld. The centring means consists of a circular recess 11, 17 in the head 10 and a boss or ring 14, 19 on the stem 13. The members 10, 13 are joined by electric resistance projection welding, one or more projections 12, 20 being formed on the members 10, 13. A recess or bore may be provided in one of the members 10, 13 to receive excess welding metal. After welding the edges 15, 16 of the members 10, 13 are in abutment but not welded.
Patent GB-1039306-A (GB)
Title: Improvements in apparatus for working dough and similar materials
IPC: B01F7/00
Filed: 1964-02-25
Abstract: 1,039,306. Mixing-apparatus. S. STEPHAN. Feb. 25, 1964 [May 10, 1963], No. 7724/64. Heading B1C. In apparatus for kneading dough comprising blades 5 mounted on a vertical shaft 6 rotatable in a container 1 the blades are arranged at a pitch angle and (Fig. 2 not shown) of between 3 degrees and 10 degrees, the blades together extending over half to two-thirds of the diameter of the container and lying adjacent the bottom of the container. The speed of rotation of the blades is at at least 750 RPM and preferably 1500 RPM. In plan view the blades together form an S-shape (Fig. 3 not shown).
Patent GB-520990-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B13/20
Filed: 1939-03-10
Abstract: 520,990. Cameras with range-finders. KODAK, Ltd. March 10, 1939, No. 7779. Convention date, March 11, 1938. [Class 98 (i)] In a camera having coupled range finder, a cam mounted in the camera body transmits movement from the focussing means to the movable element of the finder, and is adjusted by means of protuberances on the lens mount in such a way that the range finder adjustment is in accordance with the focal length of the objective. In the construction shown, the cam consists of a split ring 30, Fig. 3, mounted in an internal annular recess in a focussing ring 25 rotatably mounted in the camera. The focussing sleeve 12 of the lens mounting is formed with protuberances 40, Fig. 4, against which the rear face of the cam ring 30 is caused to bear by a spring ring 33 and which give it a helical form of greater or less pitch according to the focal length of the interchangeable lens. The end 57 of a lever connected to the movable element of the range-finder bears on the face of the cam ring, which in rotating with the focussing ring 25 thereby adjusts the range finder. The focussing sleeve 10 on the lens mounting is caused to rotate with the ring 25 by means of a pin 35, Fig. 4, which engages between any two of a series of teeth 26 formed on the front flange of the ring. The sleeve 10 is theaded to engage a ring 8, in which the lens barrel 6 is telescopically mounted and secured in the extended position for use by a partial rotation which causes the engagement of steep-pitch threads 9 on the rear end of the ring and barrel. A key 11 integral with a stationary ring member 13 on the lens mount extends into a keyway in the lens barrel and prevents it and the ring 8 from rotating when the focussing sleeve 10 is turned. The lens mount is secured in the socket 21, Fig. 2, in the front wall of the camera by radially extending lugs 19 on the ring 13, which pass through recesses 20 and are locked by partial rotation of a ring 23, which causes lugs 24 carried by it to come between them and the recesses.
Patent GB-1176637-A (GB)
Title: A Method of Purifying the Exhaust Gases from the Incineration of Refuse.
Inventor: HERRMANN ERICH
IPC: F23J15/00
Filed: 1968-02-16
Abstract: 1,176,637. Combustion of waste materials. METALLGESELLSCHAFT A.G. 16 Feb., 1968 [17 Feb., 1967], No. 7811/68. Heading F4B. Exhaust gases from a refuse incinerator are passed into the combustion zone of a multiple hearth furnace, in successive zones of which partially dewatered sedimentation sludge of controlled alkalinity is dried, burnt and cooled, the exhaust gases from the incinerator passing in counterflow to the sludge up through the multiple hearth furnace whereby dust and acid compounds are removed from the exhaust gases. The gases enter the furnace at 800- 1000‹ C. and provide at least in part the necessary combustion air for burning the sludge and noxious vapours released from it, the resultant mixture of gases produced effecting drying of the sludge which is of 80-90% water content on the upper hearths of the furnace before leaving at 200-350‹ C. for further cleaning. Preheated air from the ash cooling zone of the furnace may also support combustion in the superjacent combustion zone of the furnace. The sludge alkalinity is controlled by the addition of quicklime, slaked lime or part of the cooled ash.
Patent GB-1424715-A (GB)
Title: Valves
IPC: A61C17/08
Filed: 1973-02-16
Abstract: 1424715 Dental handpieces SIEMENS AG 16 Feb 1973 [16 Feb 1972] 7868/73 Heading A5R [Also in Division F2] A valve 3 adapted for connection in a fluid-supply hose of a dental handpiece comprises a cylindrical body member 16 having inlet 42 and outlet 43 ducts leading to openings 21, 22 respectively in the curved surface and a sleeve-like closure member 20 which is rotatable about the body member and eccentrically biassed thereto by adjustable screws 32 set in an outer sleeve member 7 which is also rotatable to open and close the openings. The chamber formed between the body and closure members is sealed by rubber 0-rings 30, 31. The valve controls the supply of cooling water to the handpiece. Passageways 38 and 39 are provided for conveying spray air and driving air to the handpiece. Provision is also made for electrical connections. A drilling handpiece is described having an electric motor and an external coolant water tube for separate connection to the valve.
Patent GB-1029064-A (GB)
Title: Leg rest fixture and supplemental holding mechanism
IPC: A47C7/50
Filed: 1963-02-27
Abstract: 1,029,064. Leg-rest actuating mechanism. LA-Z-BOY CHAIR CO. Feb. 27, 1963 [May 21, 1962], No. 7940/63. Heading A4J. A leg-rest 34, which is attached to the seat frame of a rocking chair, and is movable between a leg-supporting position and a retracted position by extensible linkage 36, has a supplemental mechanism 70 which holds the leg-rest 34 tightly against the seat frame in its retracted position. The leg-rest is lifted by rotating a shaft 58, by means of an arm 62, Fig. 1 (not shown), so that a link 50 turns anti-clockwise engaging a notch 67 of link 40 with a stop tab 64 on link 50 and so lifts the leg-rest 34 by extending the linkage 36. The leg-rest is held in this position by the engagement of the stop tab 64 with a finger 68 on link 40. The supplemental mechanism 70, Fig. 4 (not shown), comprises a link 94 with a tip 96 extending through an aperture 98 in a bent link 100, and a spring 102 connected between a fixed surface and the other end of the link 100. The force of the spring 102 on the links 94, 100 imposes a clockwise movement 171 on the actuating shaft 58 which is transmitted through the link 52 to remove any slack existing in the supporting linkage 36.