baber/WOPTO huggingface dataset:
Patent GB-653135-A (GB)
Title: Improvements in or relating to devices for drilling polygonal holes
IPC: B23B41/04
Filed: 1948-08-19
Abstract: 653,135. Drilling polygonal holes. FISHER, H. M M. Aug. 19. 1948. No. 21933. [Class 83 (iii)] A tool for a device for drilling polygonal holes comprises a polygonal bar 10 which has one side less than the number of sides of the required hole, which will just rotate in the hole and which has cutting edges 15 formed on the end, the cutting edges being disposed radially from the centre of the bar to each corner with only one of the edges continued at least as far as the centre, and the other edges terminating short of the centre to permit the provision of chip-clearance channels 20. The tool is used in a device as described in Specification 397,002 or 653,129, in which the tool is rotated and, at the same time, gyrated by stationary guides conforming to the size and shape of the required hole. For drilling a hexagonal hole, five cutting edges 15 are formed on the end of a pentagonal bar 10 by a stepped clearance 16, 17, 18 provided behind each edge and by the chip-clearance grooves 20 in front of each edge. Grooves 22 for removing chips axially along the bar are provided in the sides of the bar adjacent the corners. The sides of the bar may be flat or, to give improved guiding of the tool in the stationary guides, may be slightly convex. A triangular tool for cutting square holes is also described.
Patent GB-170128-A (GB)
Title: Improvements in epicyclic toothed gearing
IPC: F16H1/22
Filed: 1920-07-22
Abstract: 170,128. Cave, T. R. Cave-Browne-. July 22, 1920. Epicyclic gearing of the kind comprising shrouded spur-wheels has as its driven element an internallytoothed ring 5, which may be secured in the boss 7 of an air-craft propeller. The engine shaft 6 carries the sun gear 4. Planetary gears 3 are carried in a floating frame 10, which is arrested by a brake 17 to make the drive effective. The gears 3 haveplain ends 12 of pitch diameter, which roll on plain ends 13 of the gear 4, and upon which plain ends 14 of the ring 5 are supported. Auxiliary planetary rollers or dummy gears 15 may be provided. A flywheel 19 may be used to damp engine vibrations.
Patent GB-1120012-A (GB)
Title: Improvements in or relating to anchors
Inventor: WRIGHT KENNETH LLEWELYN
IPC: B63B21/44
Filed: 1966-05-18
Abstract: 1,120,012. Anchors. NORTH BRITISH ELECTRIC WELDING CO. Ltd. 16 May, 1967 [18 May, 1966], No. 22053/66. Heading B7S. In an anchor having a shank 1 and a fluke assembly 2 swingable relative to the shank and presenting flukes 3 and two tripping palms projecting to opposite sides of the plane of the flukes, the tripping palm 5 projecting to one side is longer than the tripping palm 4 projecting to the other side.
Patent GB-185101-A (GB)
Title: Driving devices for magnetos
IPC: F02P1/00
Filed: 1922-08-14
Abstract: 185,101. Etablissements Deesse. Aug. 26, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Magnetos, driving.- In driving magnetos used with V-type internal-combustion engines, the magneto shaft carries a crank-disc b, the crank-pin c of which slides in a slot d of a disc f secured to the half-speed shaft ; the magneto shaft is parallel to but not in line with the half-speed shaft.
Patent GB-516161-A (GB)
Title: Improvements relating to fan-cooled dynamo-electric machines of the totally enclosedtype
IPC: H02K9/16
Filed: 1938-07-26
Abstract: 516,161. Cooling dynamo-electric machines. HARLAND ENGINEERING CO., Ltd., and GREENWOOD, L. July 26, 1938, No. 22151. [Class 35] In enclosed machines of the type in which internal air is circulated through tubes outside the stator over which external cooling air is passed the ends of these'tubes are sloped to fit plates inclined to the machine axis and covering apertures in the machine frame. In the arrangement shown the tubes 5 are straight and of rectangular cross section and are secured to flat plates 7 covering apertures 8 in the frame 10; alternatively the plates may be conical. Internal air is circulated through the tubes. 5 and round the end windings 11 by a fan 2; external air is circulated over the tubes 5 by a fan 1, guide plates 12 leaving an unrestricted inlet and outlet, but causing the air to come into close contact with the tubes 5.
Patent GB-912333-A (GB)
Title: Device for the wet treatment of materials
IPC: D06B5/04
Filed: 1960-06-24
Abstract: A device, for the washing or wet-treatment of materials which are lighter than the washing medium, having a container for a liquid bath for the material and a conveying means <PICT:0912333/IV (b)/1> <PICT:0912333/IV (b)/2> <PICT:0912333/IV (b)/3> <PICT:0912333/IV (b)/4> <PICT:0912333/IV (b)/5> <PICT:0912333/IV (b)/6> <PICT:0912333/IV (b)/7> <PICT:0912333/IV (b)/8> which comprises a perforated element, e.g. a straight or curved perforated plate or screen which is arranged on a driving means, the driving means being so constructed that the perforated element at least over part of the path of conveyance of the material in the liquid bath is moved in the desired direction of conveyance of the material and the perforated element is immersed in the bath at the beginning of the movement through the bath and is lifted out of the bath at the end of the conveying movement, and the perforated element is provided with side walls and is so arranged that the liquid passes through the perforations in an upward direction, the material being pressed against the perforated element from below by the liquid passing through the perforations, and the material being thus forced to accompany the movement of the perforated element whilst during another part of the movement of the perforated element the material is released from it by the movement of the stream of liquid in the reverse direction. Various apparatus shown for carrying out this process include perforated rotating drums 16 eccentrically mounted at 15 so as alternately to suck in and flow out (Figs. 1 and 2) liquid; a pontoon 19 and eccentrics 20 (Fig. 3); a sieve drum 6 divided into individual cells having perforated jackets 4 (Fig. 5); a series of such sieve drums 8 mounted on shaft 7 (Fig. 6) and containers 13 with openings 13a mounted on a conveyer belt 10 (Fig. 7).
Patent GB-403336-A (GB)
Title: Improvements relating to dry batteries
IPC: H01M2/34
Filed: 1933-08-09
Abstract: 403,336. Batteries. CHLORIDE ELECTRICAL STORAGE CO., Ltd., and BROWNE, A. W., Exide Works, Clifton Junction, near Manchester. Aug. 9,1933, No. 22265. [Class 53.] A high tension battery is provided with a slidable sheet d of cardboard &c. which normally covers the terminal contacts a but which can be moved to bring slots or openings e in the sheet d above the contacts and so expose them when the battery is required for use. The ends f of the sheet d project through slots in the battery cover and serve as finger grips. One terminal X may be exposed permanently and for testing purposes a metal button h may be provided on the sheet d which can be pressed down to make contact with the terminal beneath. The tabs f may be turned down and sealed to the battery casing.
Patent GB-1261873-A (GB)
Title: Glass compositions
IPC: C03C3/095
Filed: 1970-05-08
Abstract: 1,261,873. Glass composition. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 8 May, 1970 [13 May, 1969], No. 22361/70. Heading C1M. A glass consists of (weight per cent):- SiO 2  . . 64-69 Na 2 O . . 8-11 K 2 O . . 7-10 Al 2 O 3  . . 3-5 MgO . . 0-3 CaO . . 1-4 BaO . . 0-12 # where BaO+2SrO SrO . . 1-7 # = 11-14 CeO 2  . . 0À05-0À3 As 2 O 3  and/or Sb 2 O 3  . . 0À3-0À7 The glass may be used as the envelope or face-plate in a cathode-ray tube, e.g. a colour television tube, and has a coefficient of thermal expansion of approximately 100 x 10<SP>-7</SP>/<SP>‹</SP> C. which is compatible with that of many existing glasses and metal components to which the parts are to be sealed.
Patent GB-923826-A (GB)
Title: Improvements in or relating to fuel elements for nuclear reactors
Inventor: CHALLENDER RONALD SCOTT
IPC: G21C3/08
Filed: 1960-06-27
Abstract: 923,826. Nuclear fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. June 16, 1961 [June 27, 1960; June 30, 1960], Nos. 22393/60 and 23020/60. Class 39 (4). A fuel element has helical fins intersected by four longitudinal flow splitter fins, three of the splitter fins being reduced in depth over most of their length so as to leave radial projections 23; this arrangement is said to prevent vibration of the element in a flow of coolant by forcing it against the side of the coolant channel. The fourth splitter fin 17 may be roughened or corrugated or may have a T- or L-section flange. To prevent instability when elements are stacked on one another the cylinder circumscribing the splitters may be eccentric relative to the axis of locating cups and cones, the engaging surfaces of adjacent elements may be flat instead of conical, or all the elements may be given the same orientation. Specifications 779,408 and 847,214 are referred to.
Patent GB-1512425-A (GB)
Title: Device for transmitting and receiving light radiation
IPC: H04B10/00
Filed: 1975-05-22
Abstract: 1512425 LED - photodiode combination THOMSON - CSF 22 May 1975 [28 May 1974] 22398/75 Heading H1K Semiconductor layers on a semiconductor substrate are arranged to provide an electro. luminescent diode superposed on a photodiode, the electroluminescent diode being of materials which are transparent to the radiation to which the photodiode is responsive and electrodes being provided to permit alternate operation of the two diodes. The exemplary unit shown in Fig. 4 comprises a P + GaAs substrate 10 with layers 21, 22, 11, 12 deposited thereon from a gallium melt by liquid phase epitaxy. Layer 21 of the photodiode is of lightly doped N-type GaAs, common layer 22 of N-type Ga1xAlxAs where x>0À2, and layers 11 and 12 of the EL diode of P and P + -type Ga1-yAlyAs respectively, where y is 0À1. Contacts are made as shown to substrate 10 and layer 12, and also to the common layer 22, via the diffused or ion-implanted annular N + zone shown or a peripheral portion of the layer exposed by mesa etching. The unit is designed for mounting at the end of a light fibre bundle in a two-way opto-electronic communication system to function alternately as receiver and transmitter of modulated light signals. Circuit arrangements to permit such operation are described.
Patent GB-781224-A (GB)
Title: Combined mixing and settling apparatus for liquids
IPC: B01D11/04
Filed: 1955-08-04
Abstract: An apparatus which may be used for handling an aqueous solution of a solvent-extractible metal nitrate, such as cerium nitrate, containing a salting-out agent such as nitric acid (this solution being the heavier liquid) and a substantially- <PICT:0781224/III/1> <PICT:0781224/III/2> <PICT:0781224/III/3> <PICT:0781224/III/4> water-immiscible organic solvent such as tributyl phosphate (this being the lighter liquid) which extracts and dissolves the cerium nitrate comprises a multi-stage arrangement of feeder-mixer-settler units and includes means for individual control of the interface in each unit.  In Fig. 1 each unit comprises a feeding chamber 11, a mixing chamber 10 and a settling chamber 13.  The units are arranged in two staggered rows, Fig. 2, and are numbered consecutively by the figures in parentheses.  The heavier liquid, e.g. an aqueous solution, rises from the bottom of, e.g. settling chamber 13(5), Fig. 1, up a duct 14(5) to a feeding chamber 11(5) and down through a vertically-adjustable weir tube 12(5) into a mixing chamber 10(5). The mixture is impelled by a rotating impeller 26(5) through an outlet 16(4)(5) which forms at the same time the inlet of the settling chamber 13(4) in the rear row.  After settlement therein the heavier liquid proceeds up a duct 14(4) and after further mixing in 10(4) reaches settling chamber 13(3) in the front row through aperture 16(3)(4), thus proceeding generally from right to left.  The lighter liquid, e.g. an organic solvent, meanwhile rises in, e.g. settling chamber 13(3) and passes by an overflow 15(3) to the same feeding chamber 11(5) and down the weir tube 12(5) to mixing chamber 10(5).  It also is impelled therefrom into settling chamber 13(4) in the rear row and rises therein to overflow at 15(4) into feeding chamber 11(6).  After mixing in mixing chamber 10(6) it passes through aperture 16(5)(6) into settling chamber 13(5) in the front row-thus proceeding generally from left to right.  The interface 21(5) in settling chamber 13(5) is adjusted to be at the level of the aperture 16(5)(6) by screwing the weir tube 12(5) up or down (see Fig. 3).  In Fig. 5 the units are placed side-by-side and the ducts 14 (4) &c. are replaced by vertical channels 38(3) &c. open at the bottom.  Heavier liquid from settling chamber 34(2) passes up channel 38(2), through an aperture 39(2)(3) near the bottom of feeding chamber 31(3), into the mixing chamber below it and through aperture 35(3) to settling chamber 34(3) whence it passes up channel 38(3) and so on to the right.  Lighter liquid from settling chamber 34(4) passes over overflow 40(3)(4) into the same feeding and mixing chambers and through the same aperture to settling chamber 34(3) and so on to the left.
Patent GB-678934-A (GB)
Title: Improved liquid filter with pressure relief valve
Inventor: FOSTER WILLIAM J
IPC: B01D27/06
Filed: 1949-08-30
Abstract: 678,934. Filters. GENERAL MOTORS, Ltd. July 21, 1950 [Aug. 30, 1949], No. 22457/49. Class 46 [Also in Group XXIX] A liquid filter, e.g. for engine lubrication systems, comprises a casing containing a hollow filter element 4 and a pressure relief valve formed by a cup 7 carrying a flexible annulus 15 having apertures 16 adjacent surface of the annulus so that a predetermined pressure difference between the high and low pressure sides of the filter forces the annulus away from the apertures and allows liquid to byepass the filter. As shown, the annulus has a flange 21 ribbed at 22 and sealingly pressed on the filter container to prevent leakage. In modifications, the annulus is carried inside or outside two cup members fitted together and engaging, by an apertured dished portion at the bottom of the lower member, the inside of the central tube 6 of the filter element. Where the flow is inwards the annulus is inside and vice versa. In these modifications no sealing flange 21 is necessary.
Patent GB-320973-A (GB)
Title: Improvements in gramophones or disc talking machines
IPC: G11B3/46
Filed: 1928-08-03
Abstract: 320,973. Coe, F. T. D., and Dunne, M. A. Aug. 3, 1928. Tood-arm amountings.-The stylus bar is mounted on the sound-box casing by a metal strip whose central part, fixed to the stylus socket, lies in the plane of, or parallel to, the diaphragm and whose ends are twisted at right angles to the central part and secured to lugs on the casing. Fig. 1 shows the strip 6 with its central part soldered in a slot in the needle socket 4 and its twisted ends fixed by screws S to lugs 5 on the casing 1. A rubber strip 10 may be inserted between the top of the strip 6 and the casing 1. Specification 249,174, [Class 40 (iv), Telephones &c.], is referred to.
Patent GB-244831-A (GB)
Title: Improved method of cleaning the pipes of beer and like engines
IPC: B08B9/04
Filed: 1924-09-24
Abstract: 244,831. Slim, J. P. Sept. 24, 1924. Cleaning, fluidpressure processes for. - Stones, shot, sand, &c. are circulated through a beer pipe e to clean the interior, by fluidpressure from a water tap connected to the inlet a. The stones &c. i are placed in the glass cylinder shown, and on opening the tap j they are carried through the pipe e into the cylinder, where they sink to the bottom and are ready for re-use. An overflow pipe h is provided for water and foreign matter scrubbed from the pipe. A jet b on the pipe a increases the pressure of the water passing into the tube c. Connections d, f are provided to facilitate fitting the pipes in position for cleaning.
Patent GB-707769-A (GB)
Title: Improvements in devices for converting alternating impulses to unidirectional motion
IPC: F16D41/12
Filed: 1951-09-27
Abstract: 707,769. Ratchet gearing. SALOMON. F. M. M. B. Sept. 27, 1951 [Sept. 27, 1950], No. 22616/51. Class 80 (3) Rotary oscillating movement of a member P is converted into unidirectional rotary movement oi a member Q by means of a pawl E carried by the member P co-operating with ratchet teeth d of the member Q The pawl 8 is biased towards engagement by a spring r<SP>2</SP> but is controlled by a lever L engaging' its end B which lever is also biased by a spring r' and actuated by a wedge member 3 pivoted thereon and frictionally engaging a surface R on the driven member Q. When the member P moves in the direction F the wedge member 3 is wedged by friction against the surface R and moves the lever L away from the end B of pawl 8 which is allowed to engage the ratchet teeth d and drive member Q. In the opposite direction of movement the friction moves wedge member 3 against a spring 4 and allows the lever L under its spring pressure to act on the pawl 8 to remove dt from contact with the teeth d. In a modified arrangement the wedge member 3 is replaced by a spring-pressed ball co-operating with an inclined surface on the lever L. The springs r<SP>1</SP>, r<SP>2</SP> may be dispensed with and the pawl and lever may act by centrifugal force alone.
Patent GB-280479-A (GB)
Title: Improvements in portable bit dressing tools
IPC: E21B12/00
Filed: 1926-07-09
Abstract: 280,479. Bergquist, C. H., and Locke, E. A. July 9, 1926. Drawings to Specification. Percussive tools.-A portable bit-dressing tool for use in oil well operations comprises a power unit, a striking unit connected thereto and in line therewith and means connected to the tool intermediate its ends for supporting it for movement about a horizontal axis so that the striking unit may be adjusted relative to the bit to be dressed. The construction of the bit is fully described in Specification 280,259 which is referred to.
Patent GB-1512715-A (GB)
Title: Circuit arrangement for synchronizing an output signal in accordance with a periodic pulsatory input signal
IPC: H03L7/091
Filed: 1975-05-23
Abstract: 1512715 APC systems PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 23 May 1975 [27 May 1974] 22665/75 Heading H3A In a system for synchronizing an oscillator 3 at twice the frequency of input pulses 1, by phase comparing at 6 the input pulses with a signal V 5  derived from the oscillator by a frequency divider 4, the effect of noise is reduced and the lock-in range is increased by a coincidence circuit 7 which gates the input signal to the comparator 6 only during a part of the cycle during which an input pulse is expected. As described, the gating signal is derived from an output Q s  of the divider 4 in quadrature with the output Q m  supplied to the phase comparator 6. An output at the input frequency (which may be TV line frequency) is available at 2 and the output of oscillator 3 may be further divided at 9 to provide the field frequency.
Patent GB-1408911-A (GB)
Title: Velocity transducers
IPC: G01P3/52
Filed: 1972-05-12
Abstract: 1408911 Measuring speed electrically UNITED KINGDOM ATOMIC ENERGY AUTHORITY 16 May 1973 [12 May 1972] 22688/72 Heading G1N [Also in Division H21 In a velocity detection arrangement, two bar magnets 21, 22 are joined together by a soft iron slug 23 and are mounted for movement along the common axis of two co-axial coils 18, 19 inside a magnetic shielding tube 13, the coils being oppositely wound and series connected whereby an output voltage is obtained which is indicative of the velocity of the composite body. The joining region 23 between the magnets may alternatively be partly or wholly formed of non- magnetic (air-gap) material.
Patent GB-979323-A (GB)
Title: Apparatus for the coaxial alignment of two adjoining pipes
IPC: F16L1/10
Filed: 1962-06-13
Abstract: 979,323. Pipe jointing tools. H. SCHAFFNER. June 13, 1962, No. 22768/62. Headings F2G and F2P. Apparatus for aligning pipe-ends comprises three clamping-bars 1 equally spaced around a central adjusting spindle 2 and parallel thereto, the bars being radially adjustable outwards and inwards by means of the said spindle whilst maintaining parallelism therewith for clamping the apparatus inside one end of one pipe and three guiding elements 18 mounted on the ends of the bars 1 for entry into the end of the other pipe, the said elements being radially adjustable on the bars. The bars 1 are U-sectioned and are movable radially by rods 5 and 6 linked to them and to nuts 8 and 11 which travel along the spindle on left-handed and right-handed threads 9 and 12 respectively. The spindle is located by forks 14 on the bars which co-operate with a disc 13 on its end, and is rotated by an extension bar (not shown) the end of which engages at 15 on pegs 30. Brackets 16 at one end of the bars 1 carry shafts 20 on which the guiding elements or rollers 18 are carried eccentrically. A plate 24 on the end of the shaft 20 has perforations 25 and a set screw whereby the eccentric 19 can be adjusted to set each roller at a radial distance from the central spindle corresponding to measurements which have been made of the interior of the second pipe.
Patent GB-1504905-A (GB)
Title: Mould assembly and method of manufacturing a reinfored concrete pole
IPC: B28B23/18
Filed: 1975-05-23
Abstract: 1504905 Supporting stressing elements Y ISHIHARA 23 May 1975 22768/75 Heading B5A [Also in Division E1] A reinforced concrete pole is produced in a mould 1 comprising a plurality of tubular sections 3a/3b/3c joined end to end and closed by first and second end covers 4/5. A tubular reinforcing cage comprising straight bars 18/ 22/22a and arcuate bars (not shown) is placed in the mould, with some, 18, of the straight bars being connected to both end covers, and some shorter bars 22/22a to the first cover 4 while passing at their other ends through the mould wall via flanges 15/16/15a/16a. As shown for producing a tapered pole, three halfsections 3a/3b/3c are joined together to form one half of a split mould, and the end plates 4/5 attached. Straight bars 18 are passed through holes 6/7 in the end plates and attached thereto. The arcuate bars (spiral or annular) are added to surround bars 18. The half-section forming the other half of the tubular section 3a is attached, and bars 22 threaded through the arcuate bars and connected between the first end cover 4 and the flanges 15/16 by means of enlarged heads. Metal spacers 26 position the bars 22. The other half-section of 3b is added, with bars 22a attached between cover 4 and the flanges 15a/16a. The final other half-section 3a is attached, and the reinforcing rods tensioned at end cover 4. The mould is rotated via wheels and tyres while concrete is injected through a central pipe. The shorter bars 22/22a prevent overcrowding at the narrow end of the pole, and less holes in the smaller end cover 5.