baber/WOPTO huggingface dataset:
Patent GB-706647-A (GB)
Title: Improvements relating to lamp shades
IPC: F21V5/06
Filed: 1951-10-08
Abstract: 706,647. Lampshades. UNIVERSAL INJECTION PLASTICS, Ltd., and JOHNSTON, J. Oct. 1. 1952 [Oct. 8, 1951], No. 23350/51. Class 75 (2) A lampshade comprises at least two members 11, 12 connected by members 14 to surround a lamp 13 at different levels and forming a unitary moulded plastic frame 10, and a plurality of pendant ornaments 18 hanging from the frame members 11, 12. As shown the upper frame member 11 has a larger internal diameter than the external diameter of the lower frame member 12 and the member 11 has apertured lugs 16 to receive suspension cords or chains 17. The pendant ornaments 18 are transparent plastic mouldings each formed with a neck portion 19 leading to a collar 20 surmounted by a head 21. The frame members 11, 12 are each provided with a plurality of holes 15, slots leading into the holes 15 from the periphery of the frame member to allow the necks 19 of the ornaments to be passed therethrough and the collars 20 to be received in the holes 15. The lampshade may comprise three or more frame members such as 11 and 12, which may be circular, elliptical or polygonal in plan and flat, zig-zag or waved in elevation.
Patent GB-388399-A (GB)
Title: Improvements in and relating to the distribution of electrical transmissions
IPC: H04H20/83
Filed: 1931-08-19
Abstract: 388,399. Distributing music &c. NUMANS, J. J., 45, Ten Hovestraat, The Hague. Aug. 19, 1.931, No. 23373. Drawings to Specification. [Class 40 (iv).] In a system for distributing music &c. over phantom as well as over side circuits, the phantom circuit is connected at the receiving points over centre-tapped resistances shunting the side circuits, the centre tap being locally adjusted to the electrical centre of the side circuits. To reduce energy losses the resistances may be cut out when the phantom is not in use and/or the impedance of the receiving apparatus can be made higher for the phantom than for the side circuits either by arranging receiver coils to be in series for the phantom and in parallel for the side transmissions or by providing a tapped input transformer with a larger portion of the winding in use for the phantom than for the side circuits. The system may be made foolproof by the use of non- symmetrical connecting plugs. The input to the system is transformer-coupled to the distribution wires, adjustable resistances being provided if necessary to enable the correct electrical centre of the system to be found so that the phantom current strength in the two side circuits is equal.
Patent GB-1270978-A (GB)
Title: Warning installations on combine harvesters
IPC: A01D41/127
Filed: 1969-05-08
Abstract: 1,270,978. Tilt warning devices. DEERE & CO. 8 May, 1969 [8 May, 1968], No. 23577/69. Heading B7H. [Also in Divisions A1, G1 and H1] A combine harvester has a tilt warning device comprising a rolling mercury globule switch 140 or pendulum switch 12 which operates a horn 62 or lamp 60 upon excessive tilting. In Fig. 1 the contacts 50 may be adjustable to vary the angle of tilt at which a warning is given, and the switch may also operate a valve 76 to lock the lifting cylinder 80 of a mowing unit. The contacts may be constituted by reed switch units operated by a magnet at the end of the pendulum (Fig. 10, not shown). The pendulum may be damped hydraulically by having pistons 22 connected to its lower end moving in bores 28 which are equipped with throttle bores 25, 26 (Fig. 1) or connected by an adjustably throttled pipe (Fig. 4, not shown). Alternatively, hydraulic damping may be achieved by having an apertured plate connected to the lower end of the piston moving in a bath of oil (Figs. 2, 3, not shown). In further embodiments the pendulum is damped frictionally at its pivot (Fig. 6, not shown) or by having a copper or iron plate moving between the poles of a magnet (Figs. 8-10, not shown). The pendulum may be retained in the fully tilted position by means of magnets adjacent the contacts 50 (Fig. 5, not shown) or by spring detent means (Fig. 11, not shown).
Patent GB-1021636-A (GB)
Title: Improvements in and relating to bin-lifting gear for refuse collecting vehicles
IPC: B65F1/16
Filed: 1964-06-08
Abstract: 1,021,636. Discharging dustbins into refuse vehicles. J. OCHSNER & CIE A.G. June 8, 1964 [June 7, 1963], No. 23588/64. Heading B8E.  Bin lifting and discharging gear attached to the rear apron 1 of a refuse collecting vehicle comprises a swingable bin lifting and gripping assembly 2 for a large capacity bin 3. A U. shaped lifting frame 9 with two cantilever arms 9a with rollers 10 is raised by an hydraulic ram 14, 15, Fig. 1 (not shown), to engage flanges 21 at each side 21<SP>1</SP> of the bin 3 to lift it from the ground (whereon it runs down the rollers 10 to engage buffers 12), to clamp it against a U- shaped gripping frame 4a having rubber strips 11 acting as buffers and seals. At this stage two hydraulic actuators 23, 24 pivoted at 25 to brackets 26 on the cantilever arms 9a and at 27 to a frame 28 with side panels 29 swing the assembly 2 upwards about a mainshaft 6. An upper dust shield 32 is attached to U-section rails 31 guided by rollers 30. A lower dust shield 33 consists of two panels, 33a rigidly attached to the upper dust shield 32 and 33b pivoted on hinges 34 and loaded by springs 36 mounted between points 35, 37 into a normally co-planar position with panel 33a. When arms 5 on the assembly 2 reach control arms 42 continued operation of the actuators 23, 24 rotates hinges 40 about the mainshaft 6, while the U- section rails 31 roll on the rollers 30. A spring- loaded hook 48 on the lower dust shield 33b engages a stirrup-like handle 20a on the lid 20 of the bin 3 so that as the bin is rotated into the position illustrated in Fig. 4 (not shown), the lid is opened and the contents of the bin drop into a trough 55 of a compacting device 56 of known type. If the actuators 23, 24 are single acting, restoring springs may initiate the return of the bin 3. If the actuators 23, 24 are double acting, such springs are not required.
Patent GB-229600-A (GB)
Title: Improvements in and relating to machines for washing bottles, jars and the like
IPC: B08B9/36
Filed: 1924-10-06
Abstract: 229,600. Powley & Sons, Ltd., R., and Powley, M. Oct. 6, 1924. Bottles, washing. - In machines wherein the bottles, jars.&c. are fed by hand to rotary internal and external brushes, and in which roller members bear on the bottles to press them on to the external brushes, means are provided for periodically raising the rollers and internal brushes to facilitate feeding and removal of the bottles. The external brushes a are mounted on shafts c in a tank b and rotated bv chain gearing contained in a gear-box d. Between each pair of external brushes is arranged an internal brush f on a spindle i rotatable in a sleeve j pivoted to a fixed bracket k. Each spindle i is connected by a universal joint m to a driven shaft n in the gear-box d. The pressing rollers g are mounted on levers h pivoted at o<1> and periodically raised by cams q acting on rollers h<2> carried at the ends of the levers. A slotted link p pivoted to each sleeve j engages with a pin h<1> on each lever h so that these levers when near the end of their rising movement lift the internal brushes to the position x shown in the broken lines. The cams q are driven from the driving shaft by worm gearing wand in a machine for dealing with four bottles at a time the cams are so arranged that while one pair of bottles are being brushed the other pair are in the raised position.
Patent GB-930991-A (GB)
Title: A new or improved heating element
IPC: F28F1/12
Filed: 1958-07-23
Abstract: 930,991. Electric heating. N. H. BRADSHAW. Oct. 21, 1959 [July 23, 1958], No. 23616/58. Class 39 (3). An electrically heated tubular element 10, e.g. for use in electric radiant heater fires or convection heaters, or as elements in clothes drying cabinets, towel rails, paint burners or scrapers, or immersion heaters in vats or other containers for foods, is provided with a helical wire or strip radiating element 11, each convolution being of elongated form with major and minor axes and the major axes of adjacent convolutions being angularly displaced by 45 degrees from each other so that eight parallel ribs extending longitudinally of the supporting member are formed. In the method of making the helical radiating element a close coiled helix having all its convolutions in line is twisted bodily about its axis into spiral form. The tubular element 10 containing the electrical heating elements or coils may be split longitudinally into two separate parts, one or more sleeves of insulating material being provided within the element. Two tubular elements may be disposed, e.g. in a paint burner or scraper, side-by-side with their radiating elements intermeshing. In a convector heater the element may be disposed vertically within a tubular funnel having a frusto-conical cowl at its lower end and a supporting spider for the element at its upper end. In an electric fire two elements may be disposed side-by-side with a temperature control switch disposed on the centre line between them. Various miscellaneous applications of the helical element are mentioned in the Provisional Specification.
Patent GB-1121398-A (GB)
Title: A photometer with an interference filter
Inventor: HRDINA JIRO
IPC: G01N21/25
Filed: 1966-05-26
Abstract: 1,121,398. Photo-electric photo-merry. CESKOSLOVENSKA AKADEMIE VED. May 26, 1966 [May 28, 1965], No.23633/66. Heading G1A. In a photo-meter for measuring the light absorption at a particular wavelength by a medium, light is focused to a point in the centre of a cell 7 containing the medium and received by a photo-cell 10, the wavelength being selected by varying the inclination of an interference filter 13 to light collimated by an aspherical lens 2. A portion of the light passing through the filter is deflected by a prism 11 as shown, or a concave mirror, Fig. 3 (not shown), to a reference photocell 12. The medium may flow through the cell continuously.
Patent GB-1378805-A (GB)
Title: Coupling sleeve for a plug termination for a helically corrugated metal tube
IPC: H01P1/04
Filed: 1972-05-19
Abstract: 1378805 Waveguide couplings KABELUND METALLWERKE GUTEHOFFNUNGSHUTTE AG 19 May 1972 [29 May 1971] 23640/72 Heading H1W A coupling for a helical waveguide 1 or the outer conductor of a coaxial line comprises a flanged collar 6 having an inner bore complementary to the helical surface of the guide and a radial end surface which abuts a radial flange 2 on the guide. The flange follows one turn of the helix with beginning and end axially spaced by one period. The flange is preferably formed at a high point (max. diameter) of the helix. The flange abuts the helical radial surface 5, 5a forming the end of a bore 4 in a coupling member fitting over the end of the guide.
Patent GB-226597-A (GB)
Title: Improvements in or relating to flitting-trucks or trolleys for coal-cutting machines
IPC: E21C33/00
Filed: 1923-09-21
Abstract: 226,597. Wade, H., (Sullivan Machinery Co.). Sept. 21, 1923. Coal cutting machines. - Relates to flitting-trucks for machines of the type which normally hauls itself along the mine floor by a chain or the like, and comprises a truck having a frame so constructed as to be capable of removably receiving and supporting a machine of that type, combined with an airdriven motor independent of said machine mounted on the truck and a driving-connection between the motor and truck wheels. The truck comprises a frame 10, having wheels 11, 12, and carrying a motor .13 which is an airdriven turbine constructed as described in Specification 172,941, [Class 78 (v), Winding and paying-out apparatus &c.], with the turbine enclosed in a drum. Clamped to the drum is a sprocket 18 driving a shaft 15 by means of a chain 17 and sprocket 19. The shaft 15 drives a shaft 16 either by means of a chain and sprockets 24, 22 or in the reverse direction by means of gears 23, 21, the wheels 21, 22 being loose on the shaft 16 and clutched thereto by a clutch 25 which can be slid along the shaft 16 by a handle 26 and rod 27. Chains 32, 31 drive the wheels 11, 12 from the shaft 16. The drum of the motor 13 may serve as a winding drum when the truck is to ascend steep gradients, a haulage cable being attached to the drum and to an anchor in advance of the truck. When used to flit a machine 33 of the pivoted jib type, the side of the frame is cut away at 35 to allow the jib and its chain to rotate when in position, and is also cut away at 37 when the jib is to be slewed by its haulage chain. Specifications 126,986; 204,44S, [Class 80 (i), Gearing, Belt &c.], and 206,065 are referred to.
Patent GB-479740-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L5/36
Filed: 1936-11-26
Abstract: 479,740. Motor mountings. ELECTROLUX, Ltd. Nov. 26, 1936, No. 23670/37. Convention date, Nov. 29, 1935. Divided application. [Class 35] A vacuum-cleaner motor unit is supported by two axially displaced groups of axially extending compression springs. In the form shown, an intermediate casing 35 consisting of rings 44, 65 with a cover 66 and having an extension 67 about the fan blades is disposed about the motor and supported in the cleaner casing by rubber rings 33, 41, and pins 72, Fig. 3, projecting from each end of the motor casing 74 are connected to one end of compression springs 75, the other ends of which are received in recesses in the rings 44, 65. The springs 75 at the two ends of the motor are not in axial alignment.
Patent GB-486200-A (GB)
Title: Improvements in or relating to optical projection screens
IPC: G03B21/62
Filed: 1936-08-31
Abstract: 486,200. Projection screens. DIGGLE, A. H., and YONWIN, C. H. Aug. 31, 1936, No. 23754. [Class 97 (i)] A black or red screen comprises a textile fabric rendered translucent by applying oleagenous, glutinous, farinaceous or cellulosic liquids or semi-liquids and afterwards treated with gelatinous matter over which (or mixed therewith) is applied a solution of formaldehyde or potassium bichromate which is then exposed to light. The red screen when illuminated by blue light, or the black screen, are invisible to the audience, and for front projection a reflective backing may be provided. Specification 457,830 is referred to.
Patent GB-1015445-A (GB)
Title: Improvements in or relating to latex dipping
IPC: B29C41/14
Filed: 1964-06-09
Abstract: 1,015,445. Dip-moulding balloons and the like. OAK RUBBER CO. June 9, 1964 [July 24, 1963], No. 23805/64. Heading B5A. In a process where articles such as balloons are formed by dip moulding, an electrical potential obtained from a D.C. source or by an electrostatic method is formed between the dipping tank 7 and each former 1 at the instant when the latter enters latex 8, thereby, according to the invention, preventing the formation of blisters at the point of contact. In the embodiment shown, the formers 1 are pivoted to a rod 12 moved by a conveyor 14, and the formers move into and out of tank 7 by cooperation of a cam track 16 and rotatable sleeves 15. The sleeves make appropriately timed contact with contact-areas 19. The formers may be of metal such as aluminium or of non-conductive material such as glass, porcelain, wood or plastics in which case a conductor is passed through the former to a metal tip positioned thereon at the point of initial contact with the latex. Alternatively a plastics former may have a thin metal coating. In a further embodiment, Fig. 1 (not shown), a number of formers are attached to a manually movable support. The applied voltage may vary between 5 and 1000 V. depending on the weight of the former, e.g. 350-400 V. for formers having a weight range 4 ozs.-1 pound. The latex may be of natural or synthetic rubber and a preferred coagulant is a solution of calcium nitrate in alcohol. Detailed examples are given.
Patent GB-710514-A (GB)
Title: Measurement of peak amplitudes of very short electrical pulses
Inventor: O'DELL DOUGLAS THOMAS
IPC: G01R19/04
Filed: 1951-10-15
Abstract: 710,514. Peak voltmeters. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Jan. 5, 1953, [Oct. 15, 1951.] No. 23948/51. Class 37. In a valve voltmeter (Fig. 2) for measuring the peak amplitude of short pulses a blocking oscillator V 2  which is triggered by pulses from a buffer amplifier V 1  through the primary of a transformer in their joint anode circuit, supplies a pentode detector V 3 , the rectified and smoothed output of which is used to bias back the buffer amplifier grid, to which the incident pulses are applied, until the anode current pulses become too small to trigger the oscillator. The sensitivity of the oscillator is such that the buffer bias almost equals the peak pulse voltage before this happens. When the anode pulses from the buffer are very short they are partly by-passed through the self-capacity of the transformer primary, and in this case a dust-core transformer may be put in series with the transformer to trigger the oscillator. The bias voltage, which is measured with a voltmeter VM is derived from a manually operated potentiometer in a modification, a meter in the anode of the detector being then used to show when the blocking oscillator is operative.
Patent GB-789397-A (GB)
Title: Improvements relating to self-locking nuts
Inventor: BURNELL WILLIAM JOHN
IPC: F16B39/286
Filed: 1955-08-19
Abstract: 789,397. Locking nuts. SIMMONDS AEROCESSORIES, Ltd. Aug. 16, 1956 [Aug. 19, 1955], No. 23960/55. Class 89(1) A self-locking nut comprises a hexagonal body 1 with a cylindrical crown 2 having a vertical slit 4 and a circumferential slit 5 forming a tongue 6. The free end of the tongue is displaced axially,towards the body and radially inwards, and leads when the nut is screwed on to a bolt. The tongue subtends an angle at the axis of the body of at least 180 degrees.
Patent GB-899327-A (GB)
Title: Improvements relating to transparent covers for record cards
IPC: B42F19/00
Filed: 1959-07-13
Abstract: 899,327. Filing papers. ROSS, H. H. April 5, 1960 [July 13, 1959], No. 23961/59. Class 146(1) A transparent cover adapted to receive a record card to form a marker device for use in a card index, comprises a substantially V- form sheet of transparent material forming an open-ended pocket to receive said record card between the junction of the V-limbs and a support formed by joining the V-limbs remote from the junction, a V-limb extending beyond the support away from the junction freely and directly to its free edge. The cover may have a width less than the record card whereby the record card projects from one or both open ends of the pocket so that it may be grasped for removal. The sheet 10 of flexible, transparent, synthetic, thermoplastic material is folded to form limbs 11, 12, the side edges of the limb 11 slanting inwardly to form a tongue 20 at the free end of said limb, which is received in a slot 21 in the limb 12 to join the limbs together and form a support for the record card 15 contained therein. Alternatively the limbs are coextensive and joined by spot welding or by tongue and slot connections, the tongues being formed by V-shaped notches cut in the free edge of one limb, Fig. 3 (not shown). In use, the upper edges of the marker device and record card contained therein project above the body of record cards in the card index to divide the cards into groups. The sheet 10 may be formed from tinted transparent material.
Patent GB-794027-A (GB)
Title: Improvements in or relating to side delivery rakes
Filed: 1954-08-18
Abstract: 794,027. Side-delivery rakes. VAN DER LELY N.V., C. Aug. 18, 1954 [Aug. 27, 1953], No. 24012/54. Class 6(3). A side-delivery rake, of the kind wherein a frame 32A is fitted with rotary rake-wheels 32 driven by ground contact and is pushed by a tractor 30, is characterized in that the frame is pivotally movable relatively to the tractor in a horizontal plane. In Fig. 2 the frame is carried on two wheels 33, 34 one of which castors freely and the other, 34, has a castoring action limited by the connection of its vertical axis to the tractor chassis through a link 36. In a modification, Fig. 3, the frame 52, 53 is V-shaped with two lines of rake-wheels 58, 59 the frame being swingable about a vertical pivot 51 so that the wheel-planes of one set of wheels are longitudinal whereby they rotate idly without any raking action. In another modification, the vertical pivot is located rearwardly of the tractor although the rake is in advance thereof. Reference has been directed by the Comptroller to Specification 730,016.
Patent GB-206291-A (GB)
Title: Improvements in or connected with tea milling machines
IPC: A23F3/12
Filed: 1922-09-05
Abstract: 206,291. Avery, Ltd., W. & T., and Hart, J. S. Sept. 5,1922. Tea, cutting.-In a tea-cutting machine of the tvpe comprising rollers coacting with knives formed in sections and carried on pivoted members, so that in the event of a hard substance getting into the machine the corresponding section of the knife can move to let it pass without disturbing the rest of the knife, the knives are adjustably secured to the pivoted members. The knives 6 are provided with screwed shafts 7 passing through the pivoted members 8 and secured by lock-nuts 10. Set-screws 9 pass through slots in the member 8, thus allowing of the adjustment of the knife. The members 8 are pivoted on rods 11, and adjusted by means of screws 16 pressing against the walls of the casing. Springs 14 hold the knives against the rollers 4, and a plate 18 shields the knife-supporting devices and directs the tea on to the rollers.
Patent GB-1086876-A (GB)
Title: Process for producing ªÏ,ªÏ-diaminoalkanes
IPC: C07C209/52
Filed: 1964-09-11
Abstract: o ,o 1-Diaminoalkanes of the formula (I) NH2-(CH2)2n+1-NH2 where n is an integer of 3-6, are obtained by converting the compounds in the equilibrium mixture of the formula <FORM:1086876/C2/1> to the diaminoketone carbonates by treatment with CO2 and reducing said carbonates to the o ,o 1-diaminoalkanes.  The carbonate may be obtained from the equilibrium mixture by treatment of the latter with CO2 in the presence of water. The reduction may be effected by the Wolff-Kischner method or by a catalytic method, suitably at 160-280 DEG  C; suitable catalysts are copper aluminium oxide, copper chromium oxide and nickel.
Patent GB-259218-A (GB)
Title: Improvements in or relating to apparatus for gauging and indicating the quantity of liquid in tanks
IPC: G01F23/16
Filed: 1926-09-29
Abstract: 259,218. Paproth, J. Sept. 30, 1925, [Convention date]. Indicators actuated by pressure of head of liquid.-In a level indicator particularly applicable to the fuel tanks of motor vehicles, the tank 1 is connected to the float controlled vacuum tank 3 by a pipe 2 containing a check valve 4. The pipe 2 is interrupted at 5 and surrounded by a casing, and the lower portion 8 of the pipe 2 may extend upwards and enclose the pipe 2. The gauge 7 may be connected by a pipe 6 to the enlargement 5, and a relief pipe 11 having a safety valve, which opens on an excessive reduction of pressure is provided. The pressure in the space 5, which is indicated by the gauge, is less than atmospheric by the head of liquid h. Modifications are described in which the check valve 4 and enlargement 5 are combined, and in which the fuel is fed to the engine by increased pressure in the tank.