baber/WOPTO huggingface dataset:
Patent GB-1126922-A (GB)
Title: Improvements in or relating to a method and a device intended for the improvement of the contexture of cast metals
IPC: B22D7/12
Filed: 1965-07-01
Abstract: 1,126,922. Casting processes. H. J. DAUSSAN. 1 July 1965 [1 July, 1964], No. 27917/65. Heading B3F.  Metal poured into a moulds first enters the cavity of a dish or cup-shaped vessel C, Fig.1, in the mould and spreads over the vessel bottom surface to rise up its side wall and be directed back towards its axis by an inturned rim R. Impurities are retained in the vessel while metal, possibly after. recycling in the vessel, finally flows into the mould. As shown, a high side wall of the vessel C. (which floats on the. metal in the mould) may produce a back-flow of trajectory D and a final decantation as at F but .a. lower wall, could produce a trajectory D<SP>1</SP> with a decantation F<SP>1</SP>. A vessel for use in a bottompour mould,. Fig. 2 (not shown), has a central hole and fits over a spigot (1) of the mould bottom-plate (B) until it floats and rises as the mould fills. A vessel C<SP>3</SP>, Fig. 5, located on the bottom of a tundish C<SP>3a</SP>, extends through a top-cover 2 welded to a continuous casting mould A<SP>1</SP> and the metal J<SP>3</SP> flowing from the tundish, after travelling over the inner surface of the vessel C<SP>3</SP> as described, decants through a ring of ports 10 down into the mould. The tundish with its attached vessel can be withdrawn quickly and replaced by a similar device while it is cleared of the retained impurities.
Patent GB-737313-A (GB)
Title: Improvements in or relating to lifting means for root crops
IPC: A01D17/16
Filed: 1951-11-29
Abstract: 737,313. Potato harvesters. THOMPSON, H. C. Dec. 1, 1952 [Nov. 29, 1951], No 28020/51. Class 6 (3). A potato-harvesting machine comprises a rotary drum 8 rotatably mounted on a wheeled frame 1 and provided with spiral vanes that feed the crop to a conveyer 27 provided with a guide 28 which discharges the potatoes to an elevator 29 provided with a grid 30 which separates any stones or earth from the potatoes. A rotary cutter 26a is arranged on the towing tractor or on the machine, to cut off the potato tops and remove part of the furrow. A pair of discs 26 are provided to cut away the sides of the furrow. The crop is lifted into the drum by two shares 22 provided with slots and at the rear with tines. The drum 8 and conveyer 27 and elevator 29 are driven by chain and sprocket gearing from an internal-combus. tion engine 16. In a modification the endless conveyer may be dispensed with and the elevator continued out horizontally to form a conveyer.
Patent GB-318981-A (GB)
Title: A process for the impregnation of celluloid
IPC: C08J7/04
Filed: 1928-10-01
Abstract: 318,981. Weber, A., H÷ppner, H., and Weich, H. Sept. 14, 1928, [Convention date]. Addition to 316,276. Celluloid, treatment of.-The process of the parent Specification is modified by the addition of 3-6 per cent of acetic anhydride to the treating solution.
Patent GB-390824-A (GB)
Title: Improved process for treating cellulosic fibres with alkaline liquids
IPC: D06M15/05
Filed: 1931-10-10
Abstract: The wetting properties of alkaline solutions used for the treatment of natural and artificial cellulosic fibres, yarns or fabrics are improved by the addition of phenolic fractions boiling between 205-290 DEG  C. obtained from low temperature tars, vertical retort or producer gas tars or tars from wood, peat or lignite. In examples: (1) fractions of low temperature tars boiling at 225-235 DEG  C. and at 180-230 DEG  C. are added to 26 per cent caustic soda; (2) low temperature phenols are mixed with petrol and topped to 230 DEG  C. before being added to a caustic soda lye.  The relative wetting times for various fractions of the higher phenols are tabulated.
Patent GB-333084-A (GB)
Title: Improvements in the singeing of textile fabrics and yarns
IPC: D06C9/00
Filed: 1929-09-18
Abstract: 333,084. Chadwick & Co., Ltd., J., and Sharples, F. Sept. 18, 1929. Drawings to Specification. Yarns, singeing. - The singeing tube or plate with which the yarn contacts is made of silicon dioxide and may be vitrified or surface glazed. It may be heated by gas, oil, hot air or by one or more separate electrical heating elements. According to the Provisional Specification, the singeing element may be in the form of a roller or bar.
Patent GB-628830-A (GB)
Title: Improvements in and relating to dynamo-electric machines
IPC: H02K23/20
Filed: 1946-09-20
Abstract: 628,830. Exciting dynamo-electric machines. HOLLYER, E. B., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. Sept. 20, 1946, No. 28271. [Class 35] [Also in Group- XXXVII] An exciter for controlling two electrical quantities independently of one another in accordance respectively with separate controlling or input currents or voltages to the exciter, comprises a metadyne with adjacent brushes connected together externally of the armature through load elements which determine currents in respective pairs of brushes electrically in quadrature with one another for controlling the two quantities, the exciter exciting arrangement being such that on a departure of either controlled quantity from a reference value, a voltage is generated between the brushes producing the voltage which controls the other of said quantities. As shown, when the primary current of the main machine departs from a value corresponding to exciter excitation given by the winding 7, opposing winding 8 modifies the voltage at brushes a and b, d and c, and causing currents to flow in armature 1 and windings 5, 6 which by arma-, ture reaction adjusts the excitation of coils 34 on the main machine while similarly the excitation of coils 5, 6 on the main machine depends on a change of the resultant excitation of exciter coils 10, 11, which depends in turn on the secondary current of the main machine, i.e. that through resistance 12. Instead of the four coils 3-6 being all on a metadyne transformer, there may be two on each of a pair of motors having. their armatures in series, the purpose being to maintain identical voltages across the two armatures. In a modification, one end of each of four field coils on a metadyne transformer is connected to one brush on the exciter, the other ends of all the coils having a common terminal. Windings 7, 8 or 10, 11 may be replaced by a common winding. Specifications 628,827 and 628,831 are referred to.
Patent GB-693235-A (GB)
Title: Improvements relating to collapsible crates or like containers
Inventor: FIRSTBROOK JOHN THOMAS
IPC: B65D6/08
Filed: 1950-11-20
Abstract: 693,235. Crates. LOCKER & CO., Ltd., T. Oct. 23. 1951 [Nov. 20, 1950], No. 2829)/50. Class 18. A crate as described in Specification 686,412 has hooks g, h on the bottom which engage the side walls when the crate is filled, to retain the bottom in place, but are disengageable when the crate is empty, by collapsing the two part hinged sides.
Patent GB-654037-A (GB)
Title: Tuning system for short waves
IPC: H01P7/02
Filed: 1948-11-01
Abstract: 654,037. Valve amplifying circuits. PATELHOLD PATENT-VERWERTUNGS & ELEKTRO-HOLDING AKT.-GES. Nov. 1, 1948, No. 28312. Convention date, Nov. 29, 1947. [Class 40 (vi)] In a tuning system for short wave transmission comprising linear conductors and having two wave ranges, the tuning condenser is arranged as a series capacitance on the short wave range and as a parallel capacitance on the longer wave range. As shown, L<SP>1</SP>1 and L<SP>1</SP>2 are two straight parallel solid or tubular conductors, L<SP>1</SP>1 being connected to the anode of an amplifying valve V and L<SP>1</SP>2 connected to the anode through a variable tuning condenser C, the similar conductors L<SP>11</SP>1 and L"2 serving as a return leads for the linear conductors L<SP>1</SP>1 and L<SP>1</SP>2 respectively. Movable shorting bars S1 and S2 provide an approximate tuning, and where the currents are large are preferably constructed to be clamped on the conductors, or the adjustment may be in steps by means of knife contacts. The spacing and diameter of the conductors is arranged so that the inductance provided by the conductors L<SP>1</SP>1, L<SP>11</SP>1, is greater than that of conductors L<SP>1</SP>2, L<SP>11</SP>2, and a switch K is provided which shorts the lines L<SP>1</SP>2, L<SP>11</SP>2, and connects the condenser C across the anode-cathode path of the valve. With the switch short-circuited the tuning is primarily determined by the conductors L<SP>1</SP>1, L<SP>11</SP>1, providing the lower frequency range, and with the switch open, the higher frequency range is provided, mainly determined by conductors L<SP>1</SP>2 and L<SP>11</SP>2. Instead of the switch K the short-circuiting device S2 may be used if it is moved up to the condenser C. In an alternative arrangement, Fig. 2 (not shown), the tuning system is included in a push-pull amplifier.
Patent GB-285764-A (GB)
Title: Improvements in and relating to gates arranged to be opened by approaching vehicles
IPC: E05F13/04
Filed: 1927-10-25
Abstract: 285,764. Nicholson, W. F. Oct. 25, 1927. Operating gates by treadles and the like and by screw-and-nut mechanism; indicating and signalling operation of gates.-The road surface or treadle members 20 which, when depressed by a vehicle, open a gate 1, are supported at their outer ends upon rollers 28 and at their inner ends by means of a helical compression spring 18 arranged underneath a transverse member 17 connecting the road surface members. The gate comprises a pair of oppositely-swinging members each supported by a rod 3, the lower part 23 of which is threaded and engaged by a nut 24 carried by a treadle so that when the members 20 are depressed the rods 3 are rotated and the gate members swung into the open position. The threaded end 23 of one of the rods 3 may be engaged by a nut provided for actuating a signal device 30. The gate members 1 may be secured to the rods 3 by a spring-pressed sliding bolt 7, which may be withdrawn from engagement with the rods 3 by a spindle 14 connected to a hand-operated lever 10; the gate members may then be freely opened and closed without operating the treadle members 20.
Patent GB-1350790-A (GB)
Title: Injection carburettor
IPC: F02M69/04
Filed: 1971-06-17
Abstract: 1350790 Spray carburetters J H GRAFFMAN 17 June 1971 [17 June 1970] 28481/71 Heading F1B I. C. engine carburetter has an injection nozzle with a spring-loaded valve and is supplied with petrol under pulsating pressure, the petrol being fed to the nozzle through a conduit having connected thereto an adjustable relief valve through which excess petrol is discharged, so that the correct quantity of petrol reaches the nozzle. Petrol is drawn from a tank 1 by a pump 2 and fed to a channel 13. A pulse generator 5 forces the fuel past a valve member 21 into a channel 14 leading to the nozzle, excess fuel being returned to the tank through a conduit 6. The pressure of the fuel in channel 14 causes it to open a valve 17 in the nozzle, against the pressure of a spring 18, the tension of which is adjustable by a nut 19. The valve member 21 is biased to the closed position by a spring 22 which abuts the lower end of a rod 23, the upper end of which is attached to a diaphragm 26. The upper and lower sides of this diaphragm are connected by pipes 32 and 31 respectively to points in the air intake passage 16 which are upstream and downstream of a flow restrictor formed by a flange 33. The pressure drop across this flow restriction is communicated to the opposite sides of the diaphragm and causes it to adopt a position which is related to the air flow. The position of the diaphragm affects the tension of the spring 22, so that the amount of fuel which enters the conduit 14 is proportional to the airflow. The construction enables the height of the carburetter to be reduced. Instead of a single jet, the channel 14 may feed into an annular duct which projects radially into the air flow passage and forms a restriction. There are a number of apertures in the radially inner periphery of the annulus, each controlled by a valve member similar to the member 17. In a further modification the diaphragm is mounted above the inlet to the air passage and the diaphragm housing forms the lid of an annular air-cleaner which surrounds the air passage.
Patent GB-391117-A (GB)
Title: Improvements relating to motor vehicle electric lamps
IPC: F21V5/00
Filed: 1931-10-14
Abstract: 391,117. Vehicle lamps. LUCAS, Ltd., J. and LUCAS, 0., Great King Street, Birmingham. Oct. 14, 1931, No. 28525. [Classes 75 (ii) and 75 (iv).] Lantern fronts.-In a vehicle lamp in which the electric lamp bulb is provided with a screen in association with one of a pair of filaments, a refracting device is arranged at the front of, or within, the lamp so that the upper side of the forward portion of the screened beam may be inclined downwardly without interfering with the effectiveness of the normal beam. In the form shown, the lower half of the front glass a is formed with a number of refracting surfaces b which refract upwardly the lower portion c of the normal beam from the focal filament s, the whole lamp being slightly downwardly inclined. Alternatively, the refracting surfaces may be formed in the upper half of the front glass so as to refract downwardly the upper half d of the normal beam and the beam e from the screened filament h.
Patent GB-935440-A (GB)
Title: A device for attaching a leg or the like to an article of furniture
Inventor: LAWES HARRY EDWARD
IPC: F16B12/52
Filed: 1961-08-08
Abstract: 935,440. Furniture joints. M. MYERS & SON Ltd. July 24, 1962 [Aug. 8, 1961], No. 28548/61. Class 52 (2). [Also in Group XXV] A device for attaching a leg 10 to an article of furniture 11 consists of a housing adapted to be attached to the furniture 11, the housing having a hole 7 through which a screw 9, extending from the leg, can be inserted, a nut 4 which has a limited axial movement within the housing but is prevented from rotation therein, and a resiliently compressible bush 6 interposed between the nut and that side of the housing which is to be presented to the leg. The housing is constituted by a metal box 1 having a hexagonal wall 2, and a plate-like cover 3 attached to a flange 2a of the box. The nut 4 has three equi-angularly spaced radially projecting limbs 5 which are adapted to be accommodated in three corners of the hexagonal box 1, so as to prevent relative rotation of the nut and the box. The limbs 5 are shaped to define spaces between the nut 4 and the housing into which the resiliently compressible bush 6 deforms when the nut and screw are tightened. The housing may be attached to the furniture as shown in Fig. 1 or it may be inverted, the positions of the nut 4 and bush 6 being interchanged and the screw 9 passing through a hole 8.
Patent GB-1446334-A (GB)
Title: Synthetic terrain generators
IPC: G09G5/42
Filed: 1973-06-15
Abstract: 1446334 Cathode-ray tube displays TECTOR Ltd 14 June 1974 [15 June 1973] 28589/73 Heading H4T The invention is concerned with generating a synthetic terrain which is displayed, in a vehicle simulator, on a raster scanned cathode-ray tube as a simulated landscape under the control of video (beam bright-up pulses) signals which are so varied in response to control signals specifying the vehicle's speed, attitude and spatial relationship with certain defined objects of the landscape, that a viewer, e.g. an aircraft pilot under instruction, is presented with a "real-life" position. Referring to Fig. 1, the display, produced on a television monitor screen 1 has a horizon line 3 and grid lines 2 (representing one axis of the synthetic terrain) an observer positioned at 0 having a line of sight to a point 0<SP>1</SP> on the screen which is perpendicular to the latter and when the pitch angle of the vehicle is zero, parallel to the ground. Fig. 2 shows the geometry of the system when the observer at 0 is positioned at a height h above the ground plane 10 (the simulated terrain) and has a line of sight 8 characterized by a vertical deviation angle which intersects the ground plane at 12 and Fig. 3 shows a vertically downward view of the same situation in which the line of sight makes an angle X<SP>1</SP> with the line 0-0<SP>1</SP> and in which the line 16 has the same length as the distance D (Fig. 2). The location point 12 is thus specified by vectors A, B and considering the ground plane to be formed as a rectangular grid (Fig. 4) the location of point 12 relative to the observer's position 14, which has moved by values A<SP>1</SP>, B<SP>1</SP> due to simulated vehicle motion, may be computed. The simulated motion involves a change of pitch, which modifies the angle X<SP>1</SP> and a "roll" movement which causes the distance D to change. Equations are derived for the vectors A and B in terms of the above variable parameters and block circuitry employing electrical analogue computation (it is stated that digital computation may, alternatively, be employed) which produces the required "video" type signals for modulation of the scanned raster is described. The display may be in colour.
Patent GB-498204-A (GB)
Title: Improvements in or relating to forehearths for molten glass
IPC: C03B7/06
Filed: 1937-10-20
Abstract: 498,204. Glass manufacture. BRITISH HARTFORD - FAIRMONT SYNDICATE, Ltd. Oct. 20, 1937, No. 28616. Convention date, April 1. [Class 56] Relates to a forehearth for conveying molten glass from a tank furnace to a feeding or gathering device and in which the temperature of the middle portion of the flowing glass is controlled by means permitting radiation of the heat through the top wall of the cooling-section, of the forehearth. According to the invention, air is blown along the underside of the top wall of the cooling-section to increase the dissipation of heat through the top wall in order to obtain any desired temperature of the glass at the delivering end of the forehearth. The forehearth comprises a rear cooling- section 10, Fig. 1, and a forward heating or homogenizing section 11, and blocks 26, 27 may be used to separate the space above the glass in the section 10 from that in the section 11 and in the tank furnace 18, respectively. The sections 10, 11 are suitably heated,for example by burners disposed in tunnels 30, Figs. 1 and 3, and are supplied with a predetermined mixture of gas and air as described in Specification 28617/37. The roof or cover over the section 10 comprises blocks arranged to constitute a flat crown which is provided with vertical vents or exhaust ports 46. These vents extend into two exhaust manifolds 47, 48 which are provided with discharge outlets 52, 53, respectively, through which the products of combustion escape. These outlets are controlled by dampers 54 and 55 which can be opened to any desired degree by means of a lever 57 raised or lowered by a screwed rod 60. The cover is also provided with longitudinal intake manifolds 67, Fig. 3, each of which is supplied with air under pressure from a branch pipe 68 attached to a supply pipe 69. The volume of air blown through the pipe 69 is controlled by an adjustable damper 72 and also by a slide valve 73 which is connected to the lever 57, so that opening of the discharge outiets 52, 53 is accompanied by an increased flow of air into the manifolds 67, and vice versa. Each manifold 67 communicates through passages 75 with shallow horizontal cooling-ports 76 situated close to the underside of the crown of the section 10. Air from the ports 76 is blown across the crown to the vents 46 and cools the crown without changing combustion conditions in the tunnels 30 and without impinging on the glass. Adjustment of the valves 73 and of the levers 57, together with adjustment of the heating- devices in the tunnels 30, enables any desired temperature gradient to be obtained in the length of the glass flowing through the section 10. In a modification, additional cooling air from the pipes 68 is blown into annular slots at the upper ends of the flues 52, 53 to assist the escape of the cooling air from the ports 76 through the flues.
Patent GB-464478-A (GB)
Title: Improvements in or relating to signs
IPC: B60Q1/56
Filed: 1935-10-16
Abstract: 464,478. Illuminated signs. SIMMS MOTOR UNITS, Ltd., and CURRIN, S. A. Oct. 16, 1935, No. 28636. Drawings to Specification. [Class 3 (ii)] The Specification comprises the same subjectmatter as Specification 464,479 save that the display matter may be mounted on the front panel of the casing as well as within the casing, but the invention relates to the construction of the front panel.
Patent GB-751587-A (GB)
Title: Improvements in or relating to suspended folders for documents
IPC: B42F15/00
Filed: 1954-10-05
Abstract: 751,587. Filing papers. DIELE, A. Oct. 5, 1954 [Oct. 17, 1953], No. 28646/54. Class 146(1) A suspended folder for documents has at least one of the sides of the folder provided with a supporting element associated only with that side of the folder and which is connected to that side of the folder and' adapted to be supported on the bottom of a filing equipment receiving the folders. As shown in Figs. 1 and 2, the folder with sides 1 and 2 has stiff edges turned back at 3 and 4, either the material of the folder being itself stiff, or a stiffening rod inserted in the folds 3, 4. A frame 5 of metal wire is engaged in the fold 3 and the lower edge 7 of the frame rests on the bottom of a drawer, shelf or like filing device 10. The height of the frame 5 is arranged so that when empty, the fold 6 of the folder just rests on the bottom, but will be lifted clear thereof when filled with documents. As shown, one side 1 only is provided with a frame 5 and the folders are connected together by pressstud elements 8, the end folders resting against the ends 11, 12 of the drawer or the like. Alternatively, the side 2 may also be provided with a frame 5 and the folders separately disposed in the drawer, The frame 5 may have its top edge complete, the fold 3 being passed round the wire and then secured, or may be in two parts which are sprung into the fold. In a modification, a plate in place of frame 5 has a window extending just under the top edge and the fold 3 is passed therethrough and over the top edge before being secured. As shown in Fig. 6, plates 17 replace the frames 5 and are engaged under the outwardly turned folds 3 and 4:
Patent GB-659044-A (GB)
Title: Housings for small electric motors, especially gramophone motors
IPC: H02K5/167
Filed: 1949-11-08
Abstract: 659,044. Dynamo-electric machine casings. KNECHT, E. Nov. 8, 1949, No. 28656. Convention date, Nov. 8, 1948. [Class 35] The casing of a small motor consists of two sheet-metal parts having recessed flanges 3, 4 to seat the shaft bearings 5, the recesses in the lower part being formed of inclined sides 7a, 7b, while those in the upper part are so formed that only a surface 6 bears upon the bearing. The flanges 3, 4 also serve to interlock the two parts 1, 2 of the casing. One of the bearings 5 can be adjusted by shifting a pin 9 secured to it, the said pin being guided along an oblique slot 8 in the upper part of the casing.
Patent GB-825567-A (GB)
Title: Improvements in or relating to gas-fired water heaters
Inventor: ALLEN JACK
IPC: F24H1/10
Filed: 1956-09-19
Abstract: 825,567. Water heaters. FLAVEL & CO. Ltd., S. Sept. 17, 1957 [Sept. 19, 1956], No. 28680/56. Drawings to Specification. Class 64(1) The water heater described is the same as that described in Specification. 825,568 (which, however, describes the cotrol of the flow of gas to the burner in greater detail) but the claims are directed to the method of support of the perforated bell.