baber/WOPTO huggingface dataset:
Patent GB-604514-A (GB)
Title: Improvements in or relating to machines or apparatus for sowing seeds and the like
IPC: A01C7/18
Filed: 1945-04-07
Abstract: 604,514. Seed sowers. BEST, F. April 7, 1945, Nos. 8625/45, 16567/45 and 478/46. [Class 6(i)] Apparatus for sowing seeds and the 1 i k e comprises a drum rotated by and on the axle of the apparatus and having one or more circumferential p e r - forate sowing bands around its periphery said sowing bands being partially surrounded by circlip bands which provide an opening between their free ends through which the seeds fall to the ground. The circumferential bands may not be sowing bands and may comprise fixed and laterally movable bands the latter being replaced by the sowing bands when sowing is to be done. In the construction shown which is of a small single band machine the drum C is keyed to the axle together with a disc D which serves as a travelling wheel. The sowing band E, provided with perforations F, is carried on the drum and rotates therewith inside a circlip G fixed to the handle A by a rod K. Seed is charged into the drum C through an opening C<SP>1</SP>, and is deposited on the ground through the perforations in the sowing band when these lie between the open ends of the clips G. Slits L<SP>1</SP> are provided in the clip for attaching a gag when the machine is not required for sowing. The number and size of the perforations varies in different sowing bands. In larger machines-Figs. 7 and 9 not shown-a plurality of sowing bands may be carried. In such modifications, the clips may be moved simultaneously to a non-sowing position by actuation of a lever. In the largest type, the drum consists of a number of drum sections having inner supporting discs, and as the drum is so divided sowing may continue on all gradients.
Patent GB-498643-A (GB)
Title: Improvements in or relating to a method of and apparatus for concentrating or purifying therapeutically efficacious preparations
IPC: A61K35/12
Filed: 1938-03-21
Abstract: <PICT:0498643/IV/1> <PICT:0498643/IV/2> Liquid pharmaceutical preparations containing surface-active material are purified or concentrated by forming froth in the liquid and removing the froth from the liquid.  If the surface-active material is an impurity in the original liquid, the latter is thus purified, while, if the surface-active material is the desired product, it is obtained in a more concentrated form when the froth is reliquified.  The liquid is treated in batches and the froth may be collected in fractions containing the surface-active materials in different degrees of concentration. Frothing agents may be added if necessary.  Air, nitrogen or other inert gas may be used to form the froth.  Agents, for example octanol, may be added to reliquefy the froth or it may be liquefied by centrifuging.  One form of suitable apparatus is shown in Fig. 3.  The liquid to be treated is supplied to a vessel a through an aperture e which is then closed by a stopper with a capillary tube b for the introduction of the gas.  The froth passes away through an aperture g and is collected in a vessel d, which can be readily changed.  The gas may be passed through a cooling coil p and separate jackets may surround the upper and lower portions of the vessel a, so that the froth can be kept at a lower temperature than the liquid.  A cooling coil o, which may be connected with the upper jacket, is provided for the froth.  Fig. 2 shows a vessel a with elongated lower portion and an upper portion dish-shaped to give a froth and liquid surface of increased area.  The method can be applied in the treatment of vegetable extracts, for example those of digitalis and ergot. Special reference is made to the treatment of a solution containing both sodium cholate and saponin, the separation of which depends on the temperature of the liquid.  The separation of saponin from a digitalis preparation is described.
Patent GB-669101-A (GB)
Title: Improvements in or relating to steering mechanism for road vehicles
Inventor: VENNING JOHN DANIEL ELDRET
IPC: B62D5/06
Filed: 1949-03-30
Abstract: 669,101. Fluid-pressure servomotor-control systems. VENNING & CO., Ltd., J. March 29, 1950 [March 30, 1949], No. 8660/49. Class 135. A servo-assisted vehicle steering gear comprises a hydraulic servomotor 9 connected to an arm 8 for actuating the steerable road wheels, a manually-actuated drop arm 2 connected, through lost motion taken up by springs 50, 51, to a drag link 5 also connected to the arm 8, and switches, e.g. a double micro-switch, associated with the drop arm so that either of solenoids 41, 42 is energised when one of the springs 50, 51 is compressed, the solenoids actuating valves 23, 24 controlling the passage of pressure liquid from a pump 35 through a conduit 34 and passages 29, 31 to the servomotor. The valves are spring-urged to the position shown, in which both ends of the servomotor are in communication through a conduit 37 with a reserve tank 20 to permit direct manual steering. In a modification, a ball joint, by which the drop arm is connected to the drag link, is sufficiently offset to cause torsional strain of the arm under steering loads, and this strain is utilized to operate the micro-switch.
Patent GB-1103423-A (GB)
Title: Water-soluble dyestuffs containing halogenated cyclobutane and halogenated cyclobutene residues and process for their manufacture
IPC: C09B62/485
Filed: 1965-03-01
Abstract: The invention comprises dyes of the formulae <FORM:1103423/C4-C5/1> wherein A is an organic dye radical, R1 and R2 are H, Cl or alkyl, X is H or Cl, X1 is Cl or F, Y1 is -CONR-, -SO2NR- or -CH: CHCONR-where R is H or CH3 and n is 1 or 2.  A is preferably of the azo, anthraquinone, phthalocyanine, perylene tetracarboxylic acid diimide, benzacridone or naphthothioxanthone series.  The compounds are prepared by reacting A(NHR)m, where m is 1 or 2 with a compound of the formula <FORM:1103423/C4-C5/2> where B is COCl, SO2Cl or CH = CHCOCl.
Patent GB-597583-A (GB)
Title: Optical viewing device
IPC: G02C7/10
Filed: 1945-04-09
Abstract: 597,583. Optical viewing devices. DYKES, W. U. (Research Corporation). April 9, 1945, No. 8712. [Class 97 (i)] A device for viewing juxtaposed areas having different light characteristics with equal effectiveness, such as, a strong light source and the area surrounding it, comprises at least one pair of oblong elements adapted to transmit, absorb, modify or obturate light, one element of each pair being positioned in the path of vision of each eye and one element being disposed substantially horizontally and at right angles to the other element. The oblong elements may be integral with or detachably mounted upon light transmitting means, such as a lens or window, which has different light characteristics from said elements. Thus, the light transmitting means may pass light at a greater intensity than the oblong elements or may absorb light of a colour which is transmitted by said elements. As shown in Fig. 1, an ordinary spectacle frame holds lenses 13 integral with which or detachably mounted thereon are oblong patches 14a, 14b with their major axis at right angles. When the patches have greater density than the lens material on looking through the spectacles a dark cross is seen having a darker square at the crossing of its arms, this square having the axis of binocular fusion of the two patches in which a strong light source can be centred and the glare reduced so that no strain is placed on the eye when increasing the area around the light source. Alternatively, a light cross having a ligher square at its centre may be provided by using patches of less density then the lens material. The device may also be used, e.g. in goggles, welder's screens and visors.
Patent GB-387859-A (GB)
Title: Weighing scale beams
IPC: G01G19/00
Filed: 1932-03-24
Abstract: 387,859. Weighing-apparatus. FAIRBANKS & CO., E. & T., and BOUSFIELD, A., St. Johnsbury, Vermont, U.S.A. March 24, 1932, No. 8745. [Class 143.] Steelyard apparatus.-In weighing-mechanism, more particularly for use on plate-fulcrum track scales, of the type wherein a weighing beam is coupled to a balance indicator, the balance indicator is pivotally mounted in spaced bearings and a depending link forms the operative connection between the balance indicator and the beam, ball bearings being employed at the points of pivoting. The long end of the weighbeam or steelyard 1, as shown in Fig. 2, is connected by a link 87 to a balance indicator 76, the pivotal points 79, 85, 89 being provided with ball bearings to minimize friction. The fulcrum shaft of the indicator is carried in a forked bracket 80 and the butt end of the indicator carries a forked member 83 within which the upper end of the link 87 is pivoted. A graduated scale 112 is arranged near the end of the indicator, and adjustable stops 111 limit the movement. Sensitiveness is regulated by a weight 115. A leaf spring 75b serves as a resilient stop for the steelyard poise (not shown), and stops 12 limit the movements of the steelyard. By turning a handle 47 the steelyard may be locked against the upper stop 12 by means of a locking rod 29 connected to the handle by a toggle joint 37 and rod 41. The draw rods 9, Fig. 6, connected to the steelyard are steadied by an X-shaped spacing bracket 117 clamped to the draw rods. Loose-weight apparatus.-The weighing range of the steelyard may be increased by the addition of a weight 69. The weight may be raised by means of a rack and pinion 60, 61 operated by a handle, the weight then being attached to a loop 73 by means of a thumb-screw 72. Specification 387,448 is referred to.
Patent GB-792783-A (GB)
Title: Jet engine exhaust deflector
Inventor: HAYDEN HAROLD JEROME
IPC: B64F1/26
Filed: 1956-03-21
Abstract: 792,783. Heat-intercepting screens. BOEING AIRPLANE CO. March 21, 1956, No. 8885/56. Class 51 (2). [Also in Group XXVII] Jet engine exhausts are upwardly re-directed by a fence 10 formed of sections each comprising a set of vanes 11 secured at their ends to channel-section members 16 forming with uprights 17 a pair of section side frames, members 16 of adjacent sections being bolted together back-to-back by bolts 36 also securing flanges 34 of the vanes 11, which are additionally secured to the flanges of the members 16 by bolts 31. Two fences 10 may be arranged as shown in Fig. 2.
Patent GB-1201882-A (GB)
Title: Slant hole well drilling apparatus
IPC: E21B15/04
Filed: 1969-02-19
Abstract: 1,201,882. Boring earth &c. LEE C. MOORE CORP. 19 Feb., 1969 [1 July, 1968], No. 8902/ 69. Heading E1F. Well boring apparatus comprises a platform 1, a tower 16 mounted on the platform and at its upper end supporting a pipe rack, a drill mast 3 mounted on the platform and inclined away from the tower, and a support 4 holding an inclined rotary table 5. The mast and table pivot together about a bearing 42 on the platform, the axis of the table drive shaft being coincident with that of the bearing. The tower is maintained vertically by braces 18, and the mast is maintained in inclined positions by a walkway 30 which forms an adjustable connection to the tower. A travelling block 10 is supported on a dolly 11 movable along tracks 12 on the mast. The lower end of a drill pipe is guided into the setback at the foot of the tower by a line 23, and the upper end of the pipe is hauled by a line 27 into the tower for racking after its removal from the elevator 26. The apparatus is suitable for offshore drilling.
Patent GB-187939-A (GB)
Title: Improvements in detachable power-transmission apparatus for bicycles
IPC: B62M9/00
Filed: 1922-03-29
Abstract: 187,939. La Cyclette, [Firm of]. Oct. 24, 1921, [Convention date]. Chain adjusters.- A cycle is fitted with a removable power unit comprising a two-stroke engine, and a countershaft with cone clutch and eccentric chain adjusting gear driven by a chain from the engine. The power unit is attached to the cycle frame by means of two clamps 1, 2, Fig. 1, the engine sprocket 5 driving the countershaft chain wheel 6 by a chain, the tight side of which drives the magneto sprocket 3. The countershaft chain wheel 6, Fig. 2, forms the outer member of a cone clutch, the inner member 17 being connected to the belt driving wheel 34. The whole of the gearing is mounted eccentrically in a sleeve 27 which is rotated, to tension the driving chain, by a worm 30 engaging teeth on the outside of the shell as shown also in Fig. 4.
Patent GB-915880-A (GB)
Title: Plate spring
IPC: F16F1/32
Filed: 1961-03-13
Abstract: 915,880. Springs. FICHEL & SACHS A.G. March 13, 1961 [April 28, 1960], No. 9046/61. Class 108(3). A plate spring, especially for motor vehicle clutches, comprises an annular spring plate 1 which carries, as fundamentally separate members, a plurality of levers 2. The number of levers 2 fitted to the spring plate can be selected according to the particular spring rate desired. As shown in Figs. 3, 4 the levers 2 are hooked over the outer edge of the spring plate 1. The levers may be additionally located by providing slots near the inner edge of the spring plate for receiving corresponding projections on the levers. Instead of being hooked over the outer edge of the spring plate the outer ends of the levers may be provided with T-shaped notches for engagement in correspondingly shaped slots in the spring plate.
Patent GB-636720-A (GB)
Title: Improvements in earth leakage protective systems for electric motors, cables and other apparatus
IPC: H02H3/16
Filed: 1948-03-31
Abstract: 636,720. Protective cut-out arrangements. BROOKE, W., and BALDWIN, H. T. March 31, 1948, No. 9058. Addition to 605,927. [Class 38 (v)] In a modification of the earthleakage protective system of the parent Specification, a gas-filled triode normally operating in a continuously-firing condition is arranged so that on the occurrence of an earth fault, the triode ceases to fire and causes the opening of a contactor or circuitbreaker to isolate the fault. As the protective arrangement is normally energized, a fault in the protective arrangement itself causes the opening of the circuitbreaker. In Fig. 1 a motor B is controlled by a starting switch D, which when closed causes a triode J to fire and energize the closing coil C<SP>4</SP> of a contactor C in the manner described in Specification 568,336. The triode K is continuously in operation, as its grid K2 is connected to the cathode K<SP>3</SP> by resistors L, M and so normally has no bias voltage. Thus the coil R<SP>4</SP> of a relay R is normally energized, so that the contacts R<SP>1</SP> in the contactor closing coil circuit are normally closed. In the event of an earth fault, such as indicated at 12a, a circuit is completed from the neutral-point inductance A, through the fault path 12a, earth, resistance T, rectifier N<SP>1</SP> and line 7 back to the inductance A. The current flowing in this circuit causes the rectifier N<SP>1</SP> to apply a D.C. potential across the resistance M, which makes the grid K<SP>2</SP> sufficiently negative to cause triode K to cease firing. Thus relay coil R<SP>4</SP> is de-energized and contacts R<SP>1</SP> open, causing the contactor C to open. The contacts R3 are closed to energize an indicator lainp E, and contacts R<SP>2</SP> are closed to apply a potential across the resistance T from transformer winding F<SP>5</SP>. This causes current to flow through the rectifier N<SP>1</SP>, line 7, inductance A, fault path 12a, earth, and back to the resistance T, thus enabling the rectifier to maintain the D.C. bias at the grid K<SP>2</SP> so long as the fault path 12a exists, so as to maintain the triode K in an inoperative condition to prevent the reclosure of the contactor C. Any fault in the protective arrangement which causes the triode K to become inoperative results in the opening of the contactor C. Fig. 2 (not shown) illustrates the application of the arrangement to the protection of a polyphase feeder. In this case the triode J is omitted and the contacts R<SP>1</SP> of the relay R are arranged to control the trip circuit of a circuit-breaker. Specifications 605,932 and 623,911 also are referred to.
Patent GB-576452-A (GB)
Title: Improvements in or relating to abrasive files for glass cutting
IPC: B67B7/92
Filed: 1944-05-12
Abstract: 576,452. Abrasive files. PICKERING, N. H. May 12, 1944, No. 9079. [Class 60] [Also in Group V] An abrasive file for severing the necks of glass ampoules comprises a rigid moulded mass of non-metallic abrasive material, for example, silicon carbide and a plastic substance, for example, a cold-setting synthetic resin, there being a substantial concentration of the' abrasive material along the cutting-edge ; an inert filler, for example, silica and a dye may be incorporated in the mass. In the manufacture of the files, a mould comprising a bar 10 with V-shaped grooves and end bars 12 is used ; a quantity of the abrasive material is shaken over the mould, and the mixture of abrasive material, filler, &c. then is poured into the mould and the material hardened by stoving.
Patent GB-108468-A (GB)
Title: Improvements in Electrical Condensers for High Tension and High Frequency Currents.
Inventor: KOWALSKI ALPHONSE
IPC: H01G4/28
Filed: 1917-06-25
Abstract: 108,468. Kowalski, A. June 24, 1916, [Convention date]. Condensers.-An electric condenser with a dielectric composed of liquid or paste, has electrodes formed by coaxial cylindrical tubes 1, 6, the outer tube 1 having a flat surface at the base and a hollow ring 2 at the top. The inner tube 6 has truncated cones 8 projecting into the tube from each end and the electrodes are arranged so that the distances between their ends are approximately double the distances between their cylindrical surfaces. One cone 8 is secured to the base by an insulator 9 and the condenser may be fixed to a support by the screw 11. An insulator 3 passes through the other cone 8 and the ring 2, and a conducting-tube 10 passes through the insulator to make connexion with the inner electrode. A number of the condensers may be placed in a box lined with metal and filled with oil, the outer electrodes being connected by a metal plate through which they pass.
Patent GB-377141-A (GB)
Title: Improvements in or relating to electrodynamic loudspeakers
IPC: H04R9/02
Filed: 1932-03-30
Abstract: 377,141. Loud-speakers. NAAM. LOOZE VENNOOTSCHAP PHILIPS' GLOEILAVIPEVFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. March 30, 1932, No. 9140. Convention date, April 2, 1931. [Class 40 (iv).] In a moving- coil loud-speaker, the frame 16 for supporting the diaphragm 5 is held by clamping its end portion 18 between the magnet body 1 and the annular polepiece 2, which is pressed into an aperture in the magnet body. The outer edge of the diaphragm is glued to a strip 11 of material such as thin leather, which is clamped to the frame 16.
Patent GB-823781-A (GB)
Title: Improvements in and relating to resin casting for the manufacture of dynamoelectric machine housing parts
IPC: H02K1/18
Filed: 1956-03-23
Abstract: 823,781. Moulding casings for dynamoelectric machines. GENERAL ELECTRIC CO: March 23, 1956 [March 23, 1955], No. 9156/56. Class 87(2). [Also in Group XXXV] A housing for a dynamo-electric machine is cast from an epoxide or polyester resin by placing a hub 6, an arbor 8, and a core 9 with windings 10 in a mould 1. Cores 16, 12 of e.g. polyethylene, polyethylene terephthalate or synthetic rubber, which are inflatable through valves 18, 15, respectively, and a member 25 are inserted in the mould 1, and the resin poured into the mould. After curing the resin, the cores are deflated, with or without suction, and removed, and the member 25 pulled out. Projections 21, 20 and 29 on the cores 16 and 12, respectively from ventilation openings in the housing.
Patent GB-341784-A (GB)
Title: Paper streamers with filling
IPC: A63H37/00
Filed: 1930-03-24
Abstract: 341,784. Paper streamers. DEMUTH, P., Gr³nheide-in-der-Mark, Germany. March 24, 1930, No. 9404. Convention date, March 25, 1929. [Class 132 (i).] A paper streamer contains a filling of small pieces of paper that lie between and parallel to the windings and are released as the streamer unwinds. The filling pieces may be shaped as cigars, flags, butterflies, &c. and may carry advertisements.
Patent GB-657688-A (GB)
Title: Apparatus for the stretching of cords and the like
IPC: G01N3/18
Filed: 1948-04-03
Abstract: <PICT:0657688/IV (a)/1> Rayon cords and similar materials are stretched in a steaming apparatus comprising a cylinder having a steam inlet, inlet and outlet orifices for said cords, means to heat the steam whilst in the cylinder, means for passing the materials through the cylinder and means for stretching the materials during their passage therethrough.  The pressure of the steam supplied to the cylinder should be only slightly above atmospheric, i.e. a few pounds per square inch.  The apparatus comprises a mild steel inner tube 1 threaded at each end and carrying coaxially an outer mild steel tube 3 fixed thereto by ebonite plugs 4a, 4b.  These plugs are formed with central holes in which the inner tube fits closely. The outer surface of tube 1 is enamelled and insulated by a mica film from a resistance wire element 5 of 50 watts power wound round it. The heating element terminates at each end in copper clips 6 which are connected to terminals 7 in the box 8.  The space 9 between the tubes is lagged, e.g. with powdered asbestos. An adaptor 10 carrying a steam inlet 12 and outlet 13 for condensate is screwed at the end of the tube and spaced from the plug 4a by a washer.  A bell-mouth nozzle 14 fits into the open end of the adaptor 10, and grips between itself and the adaptor a steaming indicator in the form of a bimetallic thermal switch (see Group XXXVII).  The upper end of the tube carries a collar and cap 19 with an orifice 20 coaxial with the longitudinal axis of the unit.ALSO:<PICT:0657688/IV (c)/1> Cotton or rayon cords and similar materials are stretched in a steaming apparatus comprising a cylinder having a steam inlet, inlet and outlet orifices for said cords, means to heat the steam whilst in the cylinder, means for passing the materials through the cylinder and means for stretching the materials during their passage therethrough. The pressure of the steam supplied to the cylinder should be only slightly above atmospheric, i.e. a few pounds per square inch.  The apparatus comprises a mild steel inner tube 1 threaded at each end and carrying coaxially an outer mild steel tube 3 fixed thereto by ebonite plugs 4a, 4b.  These plugs are formed with central holes in which the inner tube fits closely.  The outer surface of tube 1 is enamelled and insulated by a mica film from a resistance wire element 5 of 50 watts power wound round it.  The heating element terminates at each end in copper clips 6 which are connected to terminals 7 in the box 8. The space 9 between the tubes is lagged, e.g. with powdered asbestos.  An adaptor 10 carrying a steam inlet 12 and outlet 13 for condensate is screwed at the end of the tube and spaced from the plug 4a by a washer.  A bell-mouth nozzle 14 fits into the open end of the adaptor 10, and grips between itself and the adaptor a steaming indicator in the form of a bimetallic thermal switch (see Group XXXVII).  The upper end of the tube carries a collar and cap 19 with an orifice 20 coaxial with the longitudinal axis of the unit.