baber/WOPTO huggingface dataset:
Patent GB-363537-A (GB)
Title: Improvements in and relating to tables and like surfaces
IPC: A47B17/04
Filed: 1931-01-31
Abstract: 363,537. Desks. OSDA, Ltd., YOUNG, C. R., 19, Old Bailey, and SOUTHON, H. G., 65, Leeside Crescent, Golders Green, both in London. Jan. 31, 1931, No. 3155. [Class 52 (iii).] A movable table surface for covering the normal working surface 1 of a desk comprises a number of members, for example two, 6, 7, adapted to be pushed back to superimposed position as shown, on guide rollers 5, running in grooves 3, 4, or metal tracks on the side members 2 of the desk. A back 9 is secured to the member 7 which would have a slight range of sliding movement, and the front of the desk is closed by a hinged flap 12. The two members 6, 7 are held together when in closed position by a strap 8.
Patent GB-1468500-A (GB)
Title: Cutter head
IPC: B23F21/22
Filed: 1976-01-27
Abstract: 1468500 Milling cutters FORD MOTOR CO Ltd 27 Jan 1976 [15 May 1975] 03168/76 Heading B3K. A cutter head for roughing and finishing spiral and hypoid bevel gears comprises a circular body member 2 a number of substantially radially inner and outer positioned cutting tools 7, 6, of rectangular cross-section, a plurality of pairs of grooves 5, 4, formed in the body in which are respectively secured the tools 7, 6 by way of wedges 9, 11, and 8, 10 respectively by screws 12 which extend through a ring member 3 which together with the body 2 constitute the cutter head. The setting of the tools in their desired position is effected by adjustment of the wedges by screw 22 and the cutting tools are aligned by the use of setting jigs and dial gauges. To provide appropriate front rake the grooves and the cutting tools are inclined backward with respect to feed direction which provides appropriate front clearance e and f shown in Fig. 4. The front faces of the cutting tools are also ground to produce the desired front rake i and j indicated in Fig. 1. The desired profile of the cutters is determined by the jigs which also determines the desired angle a and b of the cutting edge 14 and 15 of the respective outer and inner tools.
Patent GB-980476-A (GB)
Title: Improvements in conveyor chains
Inventor: SKINNER NORMAN PHILIP
IPC: B65G17/38
Filed: 1963-01-25
Abstract: 980,476. Conveyer Chains. BAGSHAWE & CO. Ltd. Dec. 10, 1963 [Jan. 25, 1963], No. 3203/63. Heading B8A. A conveyer chain has double-plate links interconnected by elements 1 each containing a perpendicular pair of pivot pins 3, and an axle 4 at the centre of each link carries a pair of guide rollers outside the link plates. The plates may be cranked, as shown, or plane. In Fig. 2 (not shown), the cranked portions 6 lie closer to the connectors 1 and a pair of spacers is mounted between the plates, one in each of the spaces between the axle 4 and the cranked portions 6.
Patent GB-546779-A (GB)
Title: Improvements in or relating to metallic coatings and their application to the surfaces of magnesium and magnesium rich alloys
IPC: B23K35/00
Filed: 1939-01-31
Abstract: 546,779. Making compound sheets. BARKLIE, R. H. D., and LEWIS, A. Jan. 31, 1939, Nos. 3218 and 23128. [Classes 83 (ii) and 83 (iv)] Soldering.-In a process of joining metals, particularly for applying a non-corrosive coating or coatings of aluminium, nickel &c. to easily oxidizable metals such as magnesium or alloys thereof, a metal interlayer consisting of two or more metals such as zinc and cadmium or bismuth and cadmium, which when heated attain a pasty condition including small crystals and a liquid, is placed between the parts to be joined, is heated to bring it into such condition, and is then submitted to mechanical working such as rolling or forging to cause relative movement between the solid parts of the interlayer and the adjacent surfaces of the parts. The temperature is less than that required to soften the parts to be joined. The interlayer, which may be applied by electrolysis, spraying, brushing or dipping and may be applied either to the base metal or to the coating sheets, may consist of an alloy or superposed layers of two or more of the metals. When zinc or cadmium are used the proportion of zinc may vary from 1 to 4 parts and the cadmium from 4 to 1 parts. Non-corrosive sheets may be first decreased and then electrolytically coated with cadmium for 20 seconds in a bath and under a current capable of depositing <SP>1</SP>/ 2000  inch in one hour. The sheet is then coated with zinc for 40 seconds and then again with cadmium for 20 seconds. The magnesium plate and the two coated plates are then assembled between heavy steel slabs and heated in a muffle to 330‹ C. The assembly is then passed between rolls heated to 140 ‹ C. so that during this stage the temperature of the parts drops and passes through the range of temperature of optimum pasty condition so as to unite the parts. The assembly is now annealed by either heating below 400‹ C. to reduce formation of bond constituents in the layer at the junction of the aluminium &c. and magnesium and then work-hardening or precipitation hardening, or heating up to 400‹ C. so that partial oxidization of the interlayer occurs and prevents the formation of hard constituents in the layer. The assembly is then again rolled at 260‹ C. and is finally cold rolled. Adhesion may be improved by subsequently heating to 100‹ C. for four hours. The coating sheets may be applied by spraying on to the interlayer which is previously applied to the base metal. The edges of the parts may be protected by bending the edges of one sheet over those of the others or by applying channel shaped covering strips, or by spraying with metal or rubber. The article may consist of a number of main sheets each protected by covering sheets to form a multiple sheet.
Patent GB-223796-A (GB)
Title: Improvements in, or relating to, tyres for vehicle wheels
IPC: B60C7/12
Filed: 1924-03-20
Abstract: 223,796. Parker, J. B. March 20, 1924. Non-metallic elastic bodies. -. A tyre is formed with deep tread grooves c and transverse apertures e arranged as shown, the depth of the grooves c being much greater than their width.
Patent GB-102194-A (GB)
Title: Improvements in Steam Generators.
Inventor: ANDERSON WILLIAM
IPC: F22B9/04
Filed: 1916-03-04
Abstract: 102,194. Anderson, W., and Meikle, J. March 4, 1916. Vertical boilers. - In a boiler consisting of superposed drums 1, 2 traversed by stacks of vertical smoke-tubes 3, 4, the tubes are so disposed as to permit of lateral access to all the tubes in each stack. The tubes are preferably so arranged that radial gaps are left in the stacks opposite the man-holes 8.
Patent GB-1423942-A (GB)
Title: Thermally stable power amplifier
IPC: H03F3/24
Filed: 1974-01-24
Abstract: 1423942 Transistor amplifier and oscillator circuits BENDIX CORP 24 Jan 1974 [21 Feb 1973] 03289/74 Heading H3T The invention relates to the amplifying arrangement disclosed in Specification 1,290,304 and refers thereto, the arrangement in question comprising a transistor-as now described two parallel-connected transistors 52, 54, Fig. 1, so driven by a sine-wave signal as to operate in a switching mode, the output circuit of which comprises the primary 26 of a transformer which is resonated at the signal frequency by means of a parallel-connected capacitor 24. The secondary 30 of the transformer is connected to the load 44 via a series-resonant circuit 18 also resonant at the signal frequency. According to the invention a control circuit comprising transistor 66 is interposed between the switching transistors 52, 54 and earth, being arranged to reduce the time during which both current flows through transistors 52, 54 and an appreciable voltage is developed across them. The arrangement allows transistors 52, 54 being of a high-voltage type with slow switch-off characteristics; transistor 66 is a low-voltage, rapid switching type, being also driven by the input signal via resistor 68. A diode 70 equalizes the loading on the input circuit for positive and negative half-cycles. In a modification, switching is performed by transistors 152, 154, Fig. 7, in Darlington connection, the auxiliary transistor 166 being driven from the emitter circuit of transistor 152. The related Specification 1,290,304 also discloses an oscillator circuit.
Patent GB-763363-A (GB)
Title: Controls for internal combustion engines
Inventor: WILSON GEORGE DAVID DRAKE
IPC: F02D1/00
Filed: 1954-02-04
Abstract: 763,363. Controlling vehicles. ROLLSROYCE, Ltd. Feb. 4, 1955 [Feb. 4, 1954], No. 3387/54. Class 79(5). [Also in Group XXVII] Control means for the engine of a heavy duty vehicle such as an earth moving vehicle comprise an accelerator pedal 10 connected to a lever 20 for adjusting the setting of a governor controlling the fuel supply and hence the engine speed, and a hand control lever 22 which can be used to override the accelerator control to set the engine speed and a connection is provided between the clutch pedal 30 and the accelerator and hand controls 10, 22, by which the governor setting is adjusted to reduce the governed speed of the engine when the clutch is disengaged. The accelerator pedal is connected by a link 13 to a floating lever 14 pivoted at 15 on a link 16 pivoted on a fixed point 17, the other end of the lever 14 being connected to the governor setting means 20, and the hand control 22 is connected through a pin-and-slot connection 25, 26, to a lever 27 connected by a link 29 to the pedal 10. The pin-and-slot connection 25, 26, permits free movement of the lever 10 to adjust the governor setting but movement of the lever 22 overrides the setting of the pedal 10 permitting the driver of the vehicle to set the engine to operate at a desired speed without operating the accelerator pedal. When the pedal 30 is depressed to disengage the clutch 32, a lever 35 connected to the lever 16 is rotated to move the lever 20 to the left to reduce the governed engine speed, preferably to a value slightly higher than the engine speed at which maximum torque is obtained so that when the clutch is re-engaged, the engine is operating at maximum torque. The lever 20 is connected through a resilient connection 41, Fig. 2, to a lever 50 on which is pivoted a floating lever 42 through which a centrifugal governor 47 controls a fuel injection pump control rod 44. Movement of the lever 20 to the left moves the pivot 43 of the lever 42 reducing the governed speed.
Patent GB-1077022-A (GB)
Title: Improvements in or relating to display devices
Inventor: LLOYD CLIVE
IPC: A47F5/11
Filed: 1963-01-28
Abstract: 1,077,022. Display or educational devices. PRINT PROCESSES SALES Ltd. Jan. 28, 1964 [Jan. 28, 1963], No. 3405/63. Headings G5C and G5G. A display device for advertising or educational purposes comprises a hollow pyramidal base A capable of being collapsed into a flat condition, and " rings " B each secured adjacent to its lowest point to one of the sloping faces A<SP>2</SP> of the base A so that the " rings " do not foul one another when the base is collapsed. The " rings " B may be circular, elliptical or polygonal in shape, and some may interlink. As shown, for advertising purposes, the apex of the pyramid carries a cut-out of a paint pot and the " rings " carry differently coloured cut-outs representing paint brushes and rollers. The device may be used to illustrate orbital paths in which case the " rings " are made of wire or rod in the form of ellipses with beads threaded thereon. An element representing the focus of the orbital system may be mounted on the apex of the pyramid.
Patent GB-221725-A (GB)
Title: Improvements in and relating to automatically variable speed gearing
IPC: F16H33/10
Filed: 1924-02-09
Abstract: 221,725. Gooder, H. Feb. 9, 1924. Variable-speed epicyclic gearing is controlled automatically by gyroscopic action. The axes of driving and driven shafts 1, 2 are in a line which lies in the plane of rotation of the gyroscopic mass or masses 11. A cage 4 fast upon the driving or driven shaft 1 carries loose planet gears 6, 7 meshing with a sun gear 16 fast on the driven or driving shaft 2. The mass 11 is secured to a spindle 10 carried in a bracket 9 extending from the face of the gear 6, so that rotation of the gear 6 supplies end-over-end motion of the gyrating mass. The gyrating motion is supplied by a gear pair 13, 15 from the gear 7. A trunnion 18* on the bracket 9 is centred in the gear 7. The resistance to end-over-end motion generates an elastic torque. The gearing is locked for a solid highspeed drive by a manually-operated gear or clutch 21 sliding on the shaft 1.
Patent GB-1202144-A (GB)
Title: Improvements in methods for the production of cylindrical flanged casings or reels and in apparatus therefor
Inventor: SAXTON BRISTOWE BUCKLAND
IPC: B21D53/18
Filed: 1968-01-23
Abstract: 1,202,144. Making flanged articles; flanging; spinning. B. B. SAXTON. 22 Jan., 1969 [23 Jan., 19681, No. 3505/68. Headings B3A, B3E and B3J. A cylindrical flanged article, which may be used for a fan casing or a reel, is produced from sheet metal by forming a sheet of the metal into a cylinder, welding the ends of the sheet together to form a longitudinal seam, applying an expanding mandrel to the inside of the cylinder, mounting the mandrel for rotation and applying a roller or pair of rollers on one or both sides of one end of the cylinder and by turning a quadrant plate, on which the roller or rollers are mounted, through 90 degrees forming a flange on the cylinder. The apparatus for making the flanges comprises a mandrel A, formed in two parts which are movable outwardly to engage the cylinder C, which is mounted for rotation on a lathe or like machine, a quadrant plate D on which are mounted rollers d, d1 which engage the end of the cylinder C and means, preferably a worm d<SP>3</SP> operating against an arcuate rack d<SP>2</SP>, for rotating the quadrant plate while the cylinder is rotated to form the flange.
Patent GB-668671-A (GB)
Title: Improvements in or relating to the rapid cooling (quenching) of hot cement clinker
IPC: F27B7/38
Filed: 1950-02-13
Abstract: 668,671. Cooling cement clinker. MIAG VERTRIEBSGES. Feb. 13, 1950 [March 21, 1949], No. 3561/50. Class 51 (ii). Cement clinker from a rotary kiln 1 falls on to a roller grate 9 through which passes cooling air and which is disposed in a cooling chamber 2 divided into compartments 4 and 5 by a flapvalve 11, heated cooling air from compartment 4 being exhausted through a duct 12 by a fan 13 and used as primary air in a burner 3 and heated cooling air from compartment 5 being exhausted through a duct 14 by a fan 15 and supplied partly to the furnace as secondary air and partly to a slurry mill or raw material silo. Pressure air may be supplied below the grate by ducts 19 and hoppers 20 disposed below the roller grate in each compartment collect fines which fall through the grate and are discharged by rotary compartmented drums 21. The rollers 9 are regulably driven by chains engaging gear-wheels 10 and supplied with cooling water by a pipe 17, the water being utilized in the slurry mill or slurry silo.
Patent GB-461938-A (GB)
Title: Improvements in elastic yarn and fabric and method of making same
IPC: D02G3/32
Filed: 1936-02-06
Abstract: 461,938. Elastic yarns and fabrics. RANDALL, N. E. Feb. 6, 1936, No. 3607. [Classes 120 (iii) and 142 (iv)] An elastic yarn is made by stretching an elastic core 10, Fig. 3, to an extent substantially less than its elastic limit and helically wrapping around the core so stretched non-elastic material 11 in spaced convolutions to prevent further elongation of the core but to allow contraction thereof to substantially its untensioned state by the closing together of the convolutions of said material so as substantially to cover the core completely. The elastic webbing, Fig. 1, has elastic yarns 15-22 with non- elastic threads 23 between them, the picks being arranged to provide a one-and-one weave with the non-elastic threads between two closely adjacent elastic yarns and a two-and-two weave in the wider spaces between the groups of rubber yarns.
Patent GB-1020332-A (GB)
Title: A flow meter for propane or the like gas with a safety device combined therewith
IPC: G01F15/00
Filed: 1963-01-30
Abstract: 1,020,332. Measuring fluid flow. YAZAKI METER CO., Ltd. Jan. 30, 1963 [April 14, 1962(2); July 20, 1962; Sept. 22, 1962], No. 3877/63. Heading G1R. In a combined gas flow meter and safety device comprising upper and lower chambers 4, 5 of a plastics material separated by a partition 3 provided with a gas supply passage 2 the gas supply from an inlet nozzle 7 to the lower chamber 5 is dependent on the inlet gas pressure deflecting a diaphragm 11 to pivot a lever 9 to cover or uncover the nozzle 7 by a valve 10 and the gas passing through the passage 2 rotates an impeller 25 of a flow meter located in chamber 4.
Patent GB-138440-A (GB)
Title: Improvements in book-covers or temporary binders
IPC: B42F11/02
Filed: 1919-02-18
Abstract: 138,440. Marsh, J. B. Feb. 18, 1919. Fold-engaging files; at. taching files to covers. - In a temporary cover or binder having prongs for engagement with the upper and lower ends of a book, clamps b are provided at the ends of the back of the cover for securing the prongs, the upper prongs c being free to slide, and the lower prongs d being fixed. The clamps are formed from metal strip provided with grooves b<1> to receive the wire of the prongs and doubled over upon the wire, and are secured to the cover by bent-tongue fastenings b<2>. A crossbar d<1> to take the weight of the book is provided on the lower set of prongs. A spring f may be provided for closing the upper prongs.
Patent GB-1056372-A (GB)
Title: Guide roller assembly for a paper web handling machine
IPC: B65H27/00
Filed: 1965-01-29
Abstract: 1,056,372. Feeding webs. BELOIT EASTERN CORPORATION. Jan. 29, 1965 [Feb. 3, 1964], No. 4011/65. Heading B6B. A web passing from delivery to receiving means travels over a guide roller rotated by the movement of the web, being wrapped about the guide roller over an arc of between 5 and 180 degrees, and in order to eliminate the formation of a boundary layer of air between the roller and the web, with resultant slowing down of the roller and subsequent marking of the web surface, the roller is provided with recesses in the form of holes or grooves which may communicate with the interior of the drum, and to which suction may be applied.
Patent GB-305585-A (GB)
IPC: G01S1/72
Filed: 1929-02-06
Abstract: 305,585. Electroacustic Ges. Feb. 7, 1928, [Convention date]. Locating sounds.-In an apparatus for the directional determination of sound waves comprising two or more receivers acting on the same indicating device, the receivers have a mechanical oscillatory diaphragm structure responsive to one frequency only, and they may be of the electromagnetic. electrodynamic or electrostatic type. The receivers may be provided with a pressure-compensating device, the device being such as not to separate the receiving diaphragm and the sound transmitting medium. A receiver of the electromagnetic type far the subaqueous reception of sounds is described. The receiving diaphragm 1 carries an armature 2 disposed opposite to a field magnet 3 supported on a rigid base 5. A coil is located between the armature and the field. The receiving diaphragm 1 is supported by a rigid rod 6 against a second diaphragm 7 whose outer side abuts against a chamber 8 filled with liquid and communicating with the external water by a narrow channel 10 of such dimensions as to prevent sound vibrations entering thereby. The liquid chamber 8 is closed by a third diaphragm 9 which abuts on an air chamber 11 shut off from the external water by a rigid cover 12. The liquid chamber is of such dimensions that its bounding diaphragms 7 and 9 are practically rigidly connected together, an oscillating structure whose elastic components are the three diaphragms 1, 7, 9, thus being obtained. These diaphragms are so proportioned that the air gap between the field magnet and armature does not alter with the alteration of external static water pressure. Two or more such receivers are connected to the usual compensator 13, Fig. 2, through electrical oscillatory circuits 18, 19, having special damping resistances 20, 21. The mechanical oscillatory systems of the receivers are weakly damped and the electrical oscillatory circuits are correspondingly tuned but strongly damped, a close coupling (above 10 per cent) being used between the receivers and the oscillatory circuits. The magnetic circuits of the receivers are constructed of thin iron plates. Specifications 124,804 and 236,269 are referred to.
Patent GB-449144-A (GB)
Title: Improvements in and relating to the manufacture of ladies elastic edged knickers andother garments of a like kind
IPC: A41B9/14
Filed: 1936-02-10
Abstract: 449,144. Knicker &c. garments. POSNANSKY, J. E., and MAYFAIR MANUFACTURING CO., Ltd., 57, Effra Road, Brixton, London. Feb. 10, 1936, No. 4034. Drawings to Specification. [Class 141] A knicker or like garment of knitted fabric provided with elastic edgings at the waist and at the knees, is characterized in that the joints in the elastic contained in the edge hems are reinforced by tacking, preferably by machine, over the edge hem and contained elastic with zigzag stitching extending for a short distance on either side of the point where the ends of the elastic abut.
Patent GB-575211-A (GB)
Title: Improvements relating to hand hammers
IPC: B25D1/02
Filed: 1944-03-06
Abstract: 575,211. Hammers; handles. STEPHENS, W. R., and STEVENS BELTING CO., Ltd., [trading as THOR HAMMER CO.]. March 6, 1944, No. 4137. [Classes 61 (i) and 61 (ii)] A hand hammer of the type having a metal head in which one or each end is provided with a softer striking piece, has the head divided into two or more parts forming sockets for the striking pieces and clamping them into position. As shown, the head consists of two similar members a<1>, a<2> forming a hole c, having spikes h, to receive the handle and a socket d at each end, having ridges g to receive a striking piece e. The two halves clamp the striking pieces, which are secured by screws f and the handle secured by screws i. In a modification, one of the screws i has a gripping piece, which may be formed integrally with it, accommodated in a recess formed at one side of the hole c. In another modification, the handle has a bulge engaging in an annular recess. Alternatively, an annular recess may be provided with a contractible bush to engage the handle. In another modification, clamping action is obtained on each striking piece by means of separate parts secured by the screws f to the main part of the head.
Patent GB-1161153-A (GB)
Title: Hoisting Apparatus Provided with Induction Motors for Powered Driving of the Various Parts of the Apparatus.
Inventor: LISTER THOMAS
Filed: 1967-01-28
Abstract: 1,161,153. Control of A.C. motors. J. H. CARRUTHERS & CO. Ltd. 11 Dec., 1967 [28 Jan., 1967], No. 4315/67. Heading H2J. Hoisting apparatus has a plurality of induction motors connectible in cascade and driving at least one of a plurality of rotatable members mounted on a frame. As shown, two polyphase motors 1, 2 and 3, 4 drive respective wheels for the travelling of a gantry crane and to limit acceleration when starting the stator 3 is connected to rotor 2 through contactor C, contactors A and B being open, and stator 1 is supplied through a forward or reverse contactor F, R. Resistors 7, 8 in the circuit of rotor 4 are short-circuited by time controlled contactors LR1, LR2. At a required speed C, LR1, LR2 open and A and B close, thus connecting the motors in parallel; LR1, LR2 are then again closed sequentially. Resistors 5, 6 may be varied to control the speed. In one alternative embodiment (Fig. 2, not shown) the rotor 4 is treated as the primary and stator 3 the secondary during cascade operation, the resistors 7, 8 being then in the stator circuit, and in a further embodiment (Fig. 3, not shown) the two rotors are initially connected through resistors which are progressively short-circuited while stator 3 is also short-circuited. The motors may be plugged while in cascade, they may alternatively drive the lifting gear in which case they may have different pole numbers and there may be more than two motors, the last being a cage motor.