baber/WOPTO huggingface dataset:
Patent GB-1332567-A (GB)
Title: Devices for sharpening knives scissors and similar tools
IPC: B24B3/54
Filed: 1971-05-17
Abstract: 1332567 Grinding PHILIPS GLOEILAMPENFABRIEKEN NV 17 May 1971 [20 May 1970] 15280/71 Heading B3D A device for sharpening scissors, knives and similar tools comprises a plurality of grinding wheels 5, 6 of different degrees of coarseness arranged side by side and rotatable about substantially parallel shafts, the plane end-faces of the wheels being used to sharpen the tool. The wheels are driven by gearing 2, 3, 4 from an electric motor 1 housed in a casing 7 which rotatably supports a guide member 8. The member has apertures 9, 10, 11 bounded by supporting surfaces 14, 12, 13, respectively, surfaces 12 and 13 being used during sharpening of knives, and surface 14 during sharpening of scissors. The member 8 is rotatable through 180 degrees so that either wheel 5 or wheel 6 is operative. The device may have at least two grinding wheels and the guide member may be in the form of a slide.
Patent GB-1287062-A (GB)
Title: Improvements relating to temperature regulators
IPC: G05D23/275
Filed: 1970-03-31
Abstract: 1287062 Thermal switches ZENTRA ALBERT BURKLE KG 31 March 1970 [31 March 1969] 15311/70 Heading H1N A thermostat for controlling room temperature without large fluctuations comprises a bimetal strip 11 whose one end 47 is fixed, whose other end 41 is moved back and forth periodically by a cam 12 and whose centre portion acts upon the plunger 15 of a microswitch 10 whereby the switch 10 is switched on and off periodically, the on/off ratio depending on room temperature. The fixed end 47 of the bimetal is pivoted to a lever 42 whose position is determined by a temperature setting cam 13. The end 41 is coupled by a setting screw 55 to a cam follower lever 40 having a large mechanical advantage. The cam 12 is driven by a motor 60 which may for instance be the motor of a time switch operating in conjunction with the thermostat. The cam surface has a gently rising portion 27; a circular portion 22 and an abrupt fall 24. The fall 24 ensures that the switch opens at a definite point in the cycle and overcomes the hysteresis of the switch. Rotation of the cam 12 then brings the follower 40 on to the rising portion 27, the switch being closed at some point along this dependent upon the curvature of the bimetal. The time switch (not shown) may energize an auxiliary heater to alter the setting of the bimetal for parts of the day. In a simplified form (Fig. 1, not shown) the cams 12, 13 act directly on the bimetal strip 11.
Patent GB-1000955-A (GB)
Title: Lightweight drill pipe
IPC: E21B17/00
Filed: 1962-04-19
Abstract: 1,000,955. Boring earth &c. AMERICAN IRON & MACHINE WORKS CO. Inc. April 19, 1962 [April 28, 1961], No. 15328/62. Heading E1F. [Also in Divisions B3 and F2] A drill pipe 10 of aluminium, magnesium, aluminium base alloy, or magnesium base alloy has steel pin and box tool joints 12, 13, connected to opposite ends thereof. The tool joints are friction welded to the pipe and may contain a steel reinforcing member 37. The outer surface of a joint may be protected by segments 31 of tungstem carbide, aluminium oxide, or hard ceramic.
Patent GB-355247-A (GB)
Title: Improvements in and connected with automatic car couplings for railway and like vehicles
IPC: B61G3/04
Filed: 1930-05-19
Abstract: 355,247. Automatic couplings for railway vehicles. STONE & CO., Ltd., J., Deptford, London.-(Richards, W. F. ; 66, Tyler Street, Depew, New York, U.S.A.) May 19, 1930, No. 15330. [Class 103 (v).] In an automatic knuckle coupling .for railway &c. vehicles of the kind in which the lock member 13, Fig. 2, is elevated for uncoupling purposes by means of a toggle linkage 36, 39 operated by a transverse shaft 10 extending to the side of the vehicle, the link 36 immediately associated with the block is provided with an extension 44 adapted to engage a shoulder 35 on the coupler head 2 so as to prevent accidental upward jumping of the lock from its locking position. The link 36 is provided with an inclined slot 43 through which passes a pin 41 on the lock 13 with the result that, at the commencement of the clockwise or unlocking rotation of the shaft 10, the link 36 is moved slightly in an anticlockwise direction, thereby allowing the extension 44 freely to pass the shoulder 35. Continued rotation of the shaft 10 effects the usual steps in the operation of the coupling, viz. raising the lock 13 to an intermediate or lock-set position in which its feet 37 rest on a ledge 52, then, on further raising of the lock, actuating a pivoted knuckle opener 49, Fig. 1, and finally, on releasing the shaft 10, allowing the lock to seat itself on the tail 19 of the knuckle 3. In its extreme dropped position the feet 37 of the lock rest on the hub 38 of the lever 39, and the lever 36 abuts against a surface 56 lying between bifurcations of the lever 39. The knuckle pivot pin 4 is relieved from excessive draught strains by the provision on the tail of the knuckle of shoulders 21, 22, Fig. 10, co-operating with projections 25, 26 on the coupler head 1, buffing shocks are partly absorbed by curved lugs 16, 17 on the head, while lateral strains are taken by the engagement of shoulders 29, 30 on the knuckle with corresponding shoulders 31 on the coupler head. Specification 317,543, [Class 103 (v), Railway &c. vehicles, Draught &c. appliances for], is referred to.
Patent GB-711100-A (GB)
Title: Flat-cell electric battery
IPC: H01M50/109
Filed: 1952-06-18
Abstract: 711,100. Batteries. SOC. DES PILES WONDER. June 18, 1952, [April 7, 1952.] No. 15352/52. Class 53. A cell of the kind that can be' stacked with similar cells to form a battery comprises an insulating frame i which supports an absorbent sheet 8 moistened with electrolyte and a dishshaped zinc anode 6. A carbon cathode 9 is secured to the frame within which is a depolarizing mix 3. The frame is formed with two flanges 2, 4 forming an annular trough to receive the edges of the anode 6 and to provide an expansion chamber 7 to receive electrolyte oozing from the cell. A third flange 5 surrounds the upper part of the anode of the adjacent cell. A space 11 is left between adjacent frames to enable access to be had to the anodes for testing purposes.
Patent GB-1424693-A (GB)
Title: Antenna arrangements
IPC: G01S1/40
Filed: 1973-03-30
Abstract: 1424693 Aerials; radio navigation INTERNATIONAL STANDARD ELECTRIC CORP 30 March 1973 [6 April 1972] 15378/73 Headings H4A and H4D An aerial arrangement includes a generally vertically oriented linear array of radiating elements, means whereby said elements are arranged to be successively commutated, and transmissive means associated with said array for passing radiation to or from elements thereof within a band of angles of elevation, and for substantially rejecting radiation at other angles of elevation. As described, a vertical linear array 10, Fig. 4, of aerial elements is above a ground plane and is associated with commutation means, whereby said elements become operative successively, so simulating a moving source. The array is located to the rear of a parallel plate enclosure 11, behind an angular filter 12, which is tilted by an angle # c  to the vertical. The filter 12 is constituted by a reduction in spacing between the parallel plates 11a, 11b, Fig. 5a, of the enclosure 11. The normal spacing a between said plates is in the range # 0 /S to # 0 , where # 0  is the operating wavelength, and the narrowed spacing b is such that cut-off occurs when radiation is incident upon the filter at an angle # c  given by sin # c  = #1-(# 0 /2b)<SP>2</SP>. Tilting the filter back by the angle # c  provides that radiation is transmitted through the filter between the range of elevation angles zero to 2# c , whilst outside that range it is reflected away. In a second embodiment the parallel plate enclosure is not used, and the filter comprises a series of metal grids spaced at approximately half-wavelength intervals in front of the array (Figs. 6a, 6b, not shown). In a third embodiment the parallel plate enclosure is used, and contains a simplified version of the series of metal grids of the second embodiment. Although as shown the aerial arrangement is used in the receiving mode, it may equally well be used in the transmitting mode, as a Doppler radio beacon.
Patent GB-793143-A (GB)
Title: Improvements relating to axial-flow compressors
IPC: F01D5/14
Filed: 1956-05-17
Abstract: 793,143. Axial-flow compressors. DAIMLERBENZ AKT.-GES. May 17, 1956 [May 18, 1955], No. 15404/56. Class 110 (1). In an axial-flow compressor with swept-back blading, at least one collar extending at least approximately at a constant distance from the principal axis of the compressor and acting as a boundary-layer fence is disposed on the surface of a blade. The leading edge 1, Fig. 1, of an axial flow compressor blade is swept back, as shown, to reduce the relative velocity. Radial flow of the boundary layer is reduced by flanges 3, 4. Flange 3 extends from the leading edge 1 for about two-thirds of the blade length on the suction side 5 and about half the blade length on the pressure side 6, as shown in Fig. 4. Flange 4 extends for about one-half to twothirds of the blade length on the suction side only. In a modification, flange 3 extends completely around the blade profile, its width being greater on the suction side of the blade than;on the pressure side.
Patent GB-513375-A (GB)
Title: Improvements in and relating to non-skid tread surfaces
IPC: A43B13/22
Filed: 1938-05-24
Abstract: 513,375. Tyre treads. DUNLOP RUBBER CO., Ltd., and DAVIES, R. C. May 24, 1938, No. 15439. Drawings to Specification. [Class 144 (ii)] [Also in Groups V, VII and X] A non-skid head surface particularly for shoe soles and heels, but also suitable for tyre-treads, comprises an area or areas consisting of rubber studs upstanding from a common base to form a flat surface, the studs being separated by grooves of less width than that of the studs which are of a height not less than their width; these areas are surrounded by a border of plain or ribbed rubber of the same height as the studs.
Patent GB-1452320-A (GB)
Title: Silver halide photosensitive material
IPC: G03C1/815
Filed: 1973-12-19
Abstract: 1452320 Incorporating additives into photographic materials KONISHIROKU PHOTO INDUSTRY CO Ltd 19 Dec 1973 [28 Dec 1972] 15463/76 Divided out of 1452319 Heading G2C Photographic additives such as ultraviolet absorbers and colour couplers are incorporated into photo-sensitive silver halide materials in solution in at least one alkahe, alkene, cycloaklane or cycloalkene hydrocarbon solvent having 9 to 12 carbon atoms e.g. n-decane, n-dodecane, decahydronaphthalene, 1-nonene, 1-decene or 1-dodecene. The additive is dissolved in the hydrocarbon solvent, optionally together with a lower boiling solvent such as ethyl acetate, the solution emulsified into aqueous gelatine and the emulsion coated as a protective layer or added to a silver halide emulsion.
Patent GB-612285-A (GB)
Title: Improvements in or relating to underframes for vehicles
IPC: B62D21/10
Filed: 1946-05-23
Abstract: 612,285. Vehicle floor structures. PRESSED STEEL CO., Ltd., and MORPHEW, L. R. May 23, 1946, No. 15604. [Class 108 (i)] A floor structure for a, vehicle is comprised of a series of inverted dished plates 13, 14 and 15 interposed between a central longitudinal bearer 11 and side longitudinal bearers 12 on each side thereof. The bottoms of the dished plates, which are of rectangular form with rounded corners, constitute the floor of the vehicle, the longitudinal sides 18 and 19 of the plates being welded directly to the longitudinal bearers 11 and 12, and the transverse sides being formed with horizontal flanges 23 and 24. The flanges of contiguous plates overlapping and being welded together. Coverplates 27, also welded to longitudinal bearers 11 and 12, may be used to bridge the gap between the dished part of adjacent plates, thereby spreading the load more evenly.
Patent GB-507375-A (GB)
Title: Improvements in or relating to curtain holders
IPC: A47H1/122
Filed: 1938-05-25
Abstract: 507,375. Automatic catches. HANSEN, N. C., and FRANCIS, W. H. May 25, 1938, No. 15608. [Class 44] [Also in Group XIV] An adjustable curtainrod bracket particularly for a bottom rod, which enables the curtain to be drawn taut, comprises a plate 9 attached to a supporting structure and slit at intervals in its length, the intervening parts 17 being bent outwardly to form ratchet teeth, guide channels formed by re-entrant side edges 11 of the plate, a slide 13 having laterallyprojecting part 12 slidable in the guide channels, and a hook 21 carried by the slide and adapted to engage the curtain-rod. In Figs. 2 and 3 the slide 13 is of channel shape and is provided with a spring detent 14 engaging the ratchet teeth and having an operating knob 20 extending through an aperture 18 in the slide. Fig. 5 shows a modification in which the slide comprises an S-shaped pawl 26 with projecting pivot pins 25 which slide in guides 24 formed by bent-over portions of the sides 23 of the channel plate 22 with ratchet teeth 28. The rod-engaging hook 27 is secured to the pawl 26.
Patent GB-372116-A (GB)
Title: A self-sealing device for collapsible and other tubes or containers
IPC: B65D47/20
Filed: 1931-05-28
Abstract: 372,116. Closures for collapsable &c. tubes. CLARK, E. C., Blackmore, Queen's Avenue, Dorchester. May 28, 1931, No. 15610. [Class 125 (iii).] A self-sealing device for collapsable and other tubes consists of a springy blade affixed non- rotatably to the neck of the tube and normally closing the outlet thereof, being pressed aside to uncover said outlet. Three examples are shown. The end 7, Fig. 1, acts as a spreader for the contents of the tube. The L-shaped blade 4, passing through slits 8 in the nozzle Fig. 4, is provided with a hole 11, which is pressed into alignment with the nozzle. Fig. 6 shows a rigid tube fitted with a cap 12 having a hole 14 into alignment with which is pressed the hole 15 in the blade 4 which passes through slits in the cap.
Patent GB-1477821-A (GB)
Title: Device for controlling the relative motions of two structural  members or components particularly in machine tools
IPC: F16H25/24
Filed: 1975-04-16
Abstract: 1477821 Actuating slides OFFICINE MECCANICHE RINO BERARDI SpA 16 April 1975 15686/75 Heading B3B [Also in Division F2] A screw-and-nut mechanism for controlling the traverses of a slide 10 in a machine tool comprises a rotary shaft 16 which is not displaceable axially and carries screw members 26, 32 having square threads which are engaged by rollers 36, 36a arranged in two diametrically opposed rows carried by a support 38 rigidly secured to a bed 12 of a machine tool. The screw member 26 is rigidly secured to the shaft 16 by a key 24, and the screw member 32 is coupled to the shaft 16 by a key 34 which enables axial movement of screw member 32 relative to the shaft 16. Rollers 36a, 36b and 36c, 36d engage opposite flanks of the screw threads in order to eliminate back-lash and apply pre-load. The screw member 32 may be positioned by mechanism comprising a rack 44 and pinion 46 acting on screw members 48, 50.
Patent GB-810580-A (GB)
Title: Improvements relating to rate measuring apparatus
Inventor: SPENCER ROLF EDMUND
IPC: G01R19/12
Filed: 1950-06-23
Abstract: 810,580. Analogue electric calculating. ELECTRIC & MUSICAL INDUSTRIES Ltd. June 14, 1951 [June 23, 1950], No. 15694/50. Class 37. To measure the rate of change of amplitude of a first A.C. voltage y, a second A.C. reference voltage x is multiplied by a factor having a constant rate of charge and the amplitude of x is adjusted so that the product is equal to the rate of change of y. The amplitude of x is thus proportional to the rate of charge of y. In the circuit, signals of the form y + zx are first derived for different values of z, the circuit parameters being such that the rate of charge of z is - 1. Then the y + zx signals are applied to differentiating circuits the outputs of which are of form y -x + zx. Each differentiating circuit corresponds to a separate value of z and the output corresponding to z = 0 is chosen and automatically adjusted to be zero by changing the value of x, the amplitude of which represents the instantaneous rate of change of y. As shown, the reference voltage x is derived at tapping 3 of auto transformer 2, and a number of differing zx voltages are derived at the tappings 8-12. The voltages at 8-12, that is y + zx, are separately differentiated at 13-22 and those derived from tappings near 29, that is where z = 0, are applied over scanning tappings 23-27 to the auto transformer 28 the output of which is thus y x. This signal controls the setting of tapping 3 so as to render y - x = 0 and the position of 3 or 2 is a measure of y.
Patent GB-941436-A (GB)
Title: Improvements in or relating to analytical instruments
Inventor: ROBERTS BENJAMIN JOSEPH
IPC: G01N27/42
Filed: 1960-05-04
Abstract: 941,436. Measuring electrically. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. April 27, 1961 [May 4, 1960], No. 15698/60. Heading G1N. The moisture content of a gas is determined by passing it through a moisture absorbent cell and measuring the electrolysis current. The cell comprises two glass plates 1, 2 (Fig. 1) spaced apart by bronze strips 3, and clamped between end plates 5, 5a together with spring strips 4. A spacer 6 seals the space between the end plates 5, 5a. Each glass plate 1, 2 is covered with a double zig-zag printed strip of platinum, each strip being connected down one side of the plates 1, 2 by a bronze strip 3, and taken to terminals 17,18. The platinum strips are covered with phosphoric acid and dried, to provide an absorbent for the moisture. The test gas is fed through ports 9,10 at a controlled rate.
Patent GB-118507-A (GB)
Title: Improvements in Syringe Nozzles and Obturators.
Inventor: JESSUP GEORGE WILLIAM
IPC: A61M31/00
Filed: 1917-10-29
Abstract: 118,507. Jessup, G. W. Oct. 29, 1917. Syringes.-In syringes having a rubber bulb in the middle of the nozzle, the bulb 2 is formed integrally with the nozzle and provided with a second tube 7 extending partly into the bulb so that air may be forced in to dis. tend it and a little liquid added to preserve the interior, a stopper 8 serving to sustain the pressure and retain the liquid contents. In a modification, the tube 7 is inclined and the stopper is provided with a ball valve, thus obviating the pinching of the tube at the point 9 after inflation and before the insertion of the stopper, which is necessary in the form shown in Fig. 2.
Patent GB-715563-A (GB)
Title: Improvements in spacer members for the reinforcement of reinforced concrete
IPC: E04C5/20
Filed: 1952-06-23
Abstract: 715,563. Reinforced concrete. BERRY, F. W. Aug. 17, 1953 [June 23, 1952], No. 15747/52. Class 20 (4) Disc-like spacers for positioning reinforcing rods are made from a resilient or flexible non-absorbent synthetic resin material such as P.V.C., polythene or polystyrene and each is provided with a flared slot 8 so that it can be clipped on to a reinforcing rod 7 and retained in position on it. An aperture 12 and a slit 9 make the spacer more flexible and prongs 5 also prevent accidental removal. A rib 11 may be replaced by protections or teeth or may extend the full width of the spacer. Specification 597,505, is referred to.
Patent GB-578691-A (GB)
Title: Improvements in or relating to the drowning of nitrocellulose and apparatus for use therein
IPC: C08B17/04
Filed: 1941-12-08
Abstract: <PICT:0578691/IV/1> In order to avoid decomposition and fuming of nitrocellulose after the waste acid has been drawn off in a centrifuge, it is flooded while the centrifuge is still spinning by two equal curtains or flat jets of cold water directed symmetrically with reference to the axis of rotation and distributed over the whole axial length of the cake.  Before a fresh charge is introduced, any water remaining in the pipes is replaced by air or by waste acid. The waste acid and the drowning-water are run off separately <PICT:0578691/IV/2> <PICT:0578691/IV/3> through a two-way valve.  In the form of apparatus shown in Figs. 1 and 3, the centrifuge has a basket suspended from above which discharges through an opening 23 beneath.  The mixed nitrocellulose and acid is introduced through a pipe 11, and during centrifuging the waste acid is run off through a pipe 6, 31 leading to a waste acid receptacle.  When the operation is complete, compressed air is admitted beneath a piston 54 to raise the valve 27 and open the pipe 6 to the waste-water discharge pipe 30. As the piston 54 reaches the top of its stroke, a tappet 38 strikes a valve stem 43a causing compressed air to operate the drowning-water supply valve and admit water through the pipes 14, 18, 20 and 201 to the slot jets 211, one only of which is shown in Fig. 1. Drowning-water to an amount of 10 to 20 times the weight of the nitro-cellulose is admitted during a period of 1 or 2 minutes while the centrifuge is rotated at full speed.  The operator then reverses a compressed air supply valve which drives back the water-valve controlling piston, cuts off the supply of water, and, on the completion of its stroke, causes air to be admitted through a pipe 17 to blow out the water from the pipes 18, 20 and 201.  Finally, air is admitted to the space above the piston 54 to reverse the two-way valve 27.  The centrifuge is then stopped, the lid 4 raised to the top of the basket where it is suspended from a hook 10, and the cake of nitrocellulose discharged from the opening 23.  In an alternative apparatus shown in Fig. 5, a centrifuge having a basket supported from below is used having doors 75 above for the admission of the cellulose, which in this case is nitrated in the centrifuge.  Acid is admitted through a pipe 88 and fumes allowed to escape through a pipe 89.  A cock 87 is provided in the output pipe 86 to prevent acid from escaping while the nitration is proceeding.  The drowning-jets 77 in this case are carried by a pipe 76 suspended by a cable 85 and having flexible connections 84, 91 to the drowning-water and compressed air supplies respectively, so that it can be lowered into the centrifuge or raised to the position shown in dotted lines as required.
Patent GB-1192085-A (GB)
Title: Improvements in or Relating to Rock-Drilling Devices
Inventor: BEZLUDKO ANDREI IOSIFOVICH
IPC: E21B7/14
Filed: 1967-07-24
Abstract: 1,192,085. Flame drills. GOSUDARSTVENNY INSTITUT PO PROEKTIROVANIJU MASHIN DLYA GORNORUDNOI PROMYSHLENNOSTI. 24 July, 1967, No. 15878/67. Heading E1F. Contact of combustion gases with 'the side wall 2 of the combustion chamber of a liquid fuel-air flame drill is prevented and the wall is cooled by a layer of air being swirled over the side wall, the layer being created by jets of air emerging into the chamber adjacent 'the side wall from behind grooves 16 in the peripheral wall of a partition 14 closing off the inner end of the chamber. Air for combining with the fuel sprayed into the chamber through the nozzle 12 in the partition enters the chamber through openings 15 in the partition.