baber/WOPTO huggingface dataset:
Patent GB-262737-A (GB)
Title: An improved shock absorber for motor vehicles
IPC: F16F7/06
Filed: 1926-11-05
Abstract: 262,737. Remaud, A. C. F. Dec. 12, 1925, [Convention date]. Vibration-dampers of the frictional type for vehicles comprise a gear case A fixed to the frame enclosing the pinion B and the toothed quadrant C, the spindle of the pinion B carrying a rotary brake drum F having a circular cover plate fixed to the casing A. The cover plate cairies the fixed pivots of the brake shoes and also the cam spindle H. The operating arm D is connected to the axle. The frictional engagement between the drum and the shoes may be regulated by an arm M which is controlled by the rod I and spring K.
Patent GB-823416-A (GB)
Title: Improvements in or relating to coffee percolators
IPC: A47J31/44
Filed: 1956-09-12
Abstract: 823,416. Coffee percolators. VANZA, W. Sept. 4, 1957 [Sept. 12, 1956; Oct. 5, 1956], Nos. 27857/56 and 30394/56. Class 129. In a coffee percolator of the type in which ground coffee is contained in a perforated basket 1 supported at or near the top of a vertical open-ended tube 3 within a coffee pot, so that a thermo-syphon is created to circulate the water when it boils, the outer wall of the basket 1a forms an annular space with an inner perforated wall 4 having a transverse closure 4a extending inwardly from its top to the tube 3, the bottom 1b of the basket being imperforate or being covered by an imperforate plate. As shown, Fig. 1, the basket is provided with a perforated lid 2 and a wall 4 which extends nearly to the top of the basket whereas in Fig. 2 (not shown), wall 4 is only about half the height of container 1. Alternatively, attachments may be provided for converting an ordinary basket, i.e. an imperforate plate for the bottom of the basket and a wall and closure 4, 4a.
Patent GB-1115194-A (GB)
Title: Improvements in gear pumps
IPC: F04C2/14
Filed: 1965-07-02
Abstract: 1,115,194. Gear pumps and motors. ROBERT BOSCH G.m.b.H. July 2, 1965 [July 4, 1964], No.28027/65. Heading F1F. In a pressure-loaded gear pump or motor, bearing members or bodies 17, 18, Fig.1, are pressed against the sides of a pair of externallymeshing gears 13, 14 by pressure communicated to a recess or zone 24 at the back of each member through an axially-orientated passage 25 on the high-pressure side of the meshing gear-teeth, the recess being sealed by an O-ring 23. Each bearing member also includes a pair of blind bores (37, 38), Figs. 2 and 3 (not shown), which are in register with gear-tooth spaces upstream from the passage 25 and effect noise-reduction by serving as chambers wherein pressure fluctuations are dissipated. In a modification, Figs. 4 and 5, pairs of axially-orientated bores 39, 41 and 40, 42 in each bearing member are connected by further bores 43, 44 to the passage 25, the recess 24 thereby rendering the same service as the bores (37, 38). In a further modification, Fig. 6 to 8 (not shown), to effect noise reduction a pair of inclined bores (47, 48) in each bearing member intersect the passage 25 and are connected to one another by a groove (49) situated in the face of the member adjacent the gears to minimize cavitation in the tooth-spaces approaching the high-pressure side. Each bearing member includes a pair of slots 28, 29 to render radially pressure-loaded portions 30, 31 resilient.
Patent GB-202873-A (GB)
Title: Improvements in head attachment gear for telephone receivers
IPC: H04R1/10
Filed: 1922-10-16
Abstract: 202,873. British Thomson-Houston Co., Ltd., Young, A. P., and Stace, A. T. Oct. 16, 1922. Ball-jointed hinges.-In a ball and socket joint with limited movement for telephone receivers, the socket consists of a cup-shaped member 7 rounded at the bottom to form a bearing surface for the ball and having a slot 10 down the side to take the ball stem when assembling. The stem 5 of the ball may screw into a plug on the earpiece, and a strip of metal may be clamped between a nut 6 and the plug and be afterwards bent round to form ears for limiting the movement of the earpiece. Or the ball may be formed with a flat portion to cooperate with a flat surface 19 on the cap 11 which screws into the socket portion. One end of a rod 4, preferably of hexagonal crosssection, for attachment to the head band, is inserted in the cap 11, and a rivet 12 secures together the end of the rod 4, the cap 11, and the socket 7.
Patent GB-336747-A (GB)
Title: Stands for motor cycles
IPC: B62H1/00
Filed: 1929-09-17
Abstract: 336,747. Douglas Motors, Ltd., and Dixon, F. W. Sept. 17, 1929. Supports attached to cycles.-A. motor-cyele stand comprises a part which is hinged to the machine and can engage the ground, to serve as a prop, independently of another part which is either entirely detachable or pivotally mounted and can be engaged with the ground when a greater lift is required, e.g. for the removal of either wheel. In the construction shown, the stand comprises a pair of legs 2, one at each side of the. machine, connected together by a cross member 3 and pivoted at 4 to the underside of the cycle frame 5. Each leg is formed with an outwardly-turned foot 6, adapted to rest on the ground when the stand is being used as a prop, and also arranged to be engaged by the rider's foot. Stops 7, 8 limit the pivotal movement of the legs in both the operative and inoperative positions, and a spring 9 holds the legs in the inoperative position. A greater lift of either wheel is obtained by means of extensions, which may be pivoted to the feet or other part of the stand, or may consist of removable strut members 10 provided with holes 11 adapted to engage the feet 6 non-rotatably. In modifications, the stand comprises two ground-engaging members pivoted to the underside of the cycle frame near the centre of its length, and adapted when depressed to extend below the frame to different levels, the shorter member being pivoted either to the same fixed bracket as the longer member, or to a bracket carried by the longer member.
Patent GB-1194273-A (GB)
Title: An Image Pick-Up Tube.
Inventor: IRISAKA YORIKATSU
IPC: H01J29/38
Filed: 1968-06-14
Abstract: 1,194,273. Image pick-up tubes. TOKYO SHIBAURA ELECTRIC CO. Ltd. 14 June. 1968 [15 June, 1967], No. 28338/68. Heading HID. An image pick-up tube, e.g. an image orthicon tube, Fig. 1, has, disposed in an annular flange 19 in target cup electrode 13, a base metal evaporator 20 of the configuration shown in Fig. 5, with point sources 22a, 22b, 22c and 22d of the base metal symmetrically disposed at the outermost points of the platinum-clad molybdenum heater wire 21 which is supported by posts 23a, 23b, 23c and 23d. The evaporator is used to form, for example, the antimony or silver-bismuth alloy layer of photo-electric layer 11. The arrangement is such that the point sources 22 lie on a circle of the largest possible diameter, and the optimum spacing of the evaporator 20 from the photo-electric layer commensurate with obtaining a uniformly thick layer is also discussed. A caesium evaporator ring 24 is disposed outside the gap between the accelerating electrode 12 and the target cup 13 to sensitize the photo-electric layer 11.
Patent GB-158995-A (GB)
Title: Improvements in or relating to brake mechanism or devices for use in connection with motor cars, and like vehicles
IPC: B60T11/04
Filed: 1919-11-15
Abstract: 158,995. Terry & Sons, Ltd., H., and Terry, A. V. Nov. 15, 1919. Force-transmitting mechanism; compensating for wear.-Relates to motor vehicle and like brake mechanism in which each rear-wheel brake is controlled bv a separate cable from a brake lever, and in which such cables are tensioned by brake release springs. Each cable 1 is provided at its forward end with a U-shaped member 14 for connection to an arm 20 on the cross-shaft 2 operated by the brake lever, and at its rear end with a similar member 9 for connection to the lever 8 for actuating the brake shoes. The forward end of the cable is secured in a sleeve 15 secured to a screw-threaded rod 17 which is adjustable in the base of the bracket 14 ior taking up slack. The rear end of the cable is formed with an enlargement 11 bearing behind the base of the member 9. The brake-release spring 21 is formed at one end with an eye to engage over the pin 13 by which the member 9 is connected to the lever 8, and at its other end is secured to the rear spring shackle arm 22 or other fixed member by a metal band 24.
Patent GB-340026-A (GB)
Title: An improved process and apparatus for cooking
IPC: F24C15/32
Filed: 1929-09-19
Abstract: 340,026. Marmulla, A. Sept. 19, 1929. Ovens; oven shelves.-Food is cooked without the addition of fats or liquids and is exposed to light of a colour corresponding to the natural colour of the food, the cooking being effected in a heating-chamber consisting of several compartments the walls of which are of different thicknesses. As shown in Fig. 1, the insulated stove casing a has bottom opening b for admission of air to the burners d which are positioned beneath a perforated plate e of fireproof material. The sectional heating-chamber f - - i is positioned above the plate e, the thickness of the walls decreas. ing from the bottom to the top. Each chamber has a coloured glass window or windows k and a lamp m positioned behind it. Shelves n support the food. Temperature is controlled by a thermometer o and register x. In a modification, the shelves n are replaced by a single shelf which is vertically adjustable from the outside of the stove by a hand-crank, pulleys and ropes.
Patent GB-328900-A (GB)
Title: Method of and means for making screw taps
IPC: B23P15/48
Filed: 1929-09-19
Abstract: 328,900. Lindner, H. Sept. 19, 1929. Taps.-To facilitate grinding, taps are formed with alternate teeth on each land missing, the teeth on adjacent lands being staggered. The teeth are however complete on the taper portion of the tap, to facilitate starting. The Figs. show the arrangement adopted for a three flute tap. A four four flute tap is also illustrated.
Patent GB-999570-A (GB)
Title: Improvements relating to box spanners
IPC: B25B27/00
Filed: 1964-07-09
Abstract: 999,570. Spanners. R. ADELL ROIG. July 9, 1964, No. 28465/64. Heading B4W. A box spanner comprises a tubular body 1 provided with a socket and projecting arms 3 over which may be fitted tubes to obtain. greater leverage. Within the tubular body 1 is disposed a core member 4 provided with a socket 5 and having a transversely bored hole 6 to receive a tommy bar, the core being rotatable in the body 1 but being limited in axial displacement by a stop 7 on the inside of the body 1 engaging a raised rib 8 on the core.
Patent GB-206857-A (GB)
IPC: H01T13/46
Filed: 1923-11-13
Abstract: 206,857. Bosch Akt.-Ges., R. Nov. 13, 1922, [Convention date]. Sparking-plugs.-A soft metal ring e, preferably of copper, which acts as a packing between the insulator f and casing a or ring d, is extended downwardly towards the combustion chamber, without however being in intimate contact with the insulator and casing except at the point of support. Heat is rapidly conducted from the exposed inner end of the packing ring e to the point of support; sudden local cooling and consequent cracking of the insulator are thereby avoided.
Patent GB-704205-A (GB)
Title: Improvements relating to humidity measuring devices
Inventor: FIELDEN JOHN ERNEST
IPC: G01N25/62
Filed: 1951-12-06
Abstract: 704,205. Hygrometers. FIELDEN (ELECTRONICS), Ltd. Oct. 17, 1952 [Dec. 6, 1951], No. 28604/51. Class 97(3) A hygrometer comprises a tube 1 partially filled with a liquid A and having three vertical limbs 2, 3, 4 leading to closed vessels 7, 5 and 6 of which vessels 5 and 7 contain air or other gas while bulb 6 contains a substance which does not mix with the liquid A and is different from the air or other gas in the vessels 5 and 7 for compensating for the expansion of the liquid A with changes in the ambient temperature. Bulbs 5 and 6 are dry and maintained at the ambient temperature while bulb 7 is kept wet by a wick 8 supplied with water. The height of liquid A in limb 2 depends on the relative humidity and means are provided for energizing an electric relay when the height of this liquid reaches a given value. In the form shown, the liquid A is electrically conducting, e.g. mercury, and when it reaches a given level in limb 2 closes a circuit through a relay 13 via adjustable contacts 10, 11. In another form, the liquid A is not electrically conducting and the contacts 10, 11 are replaced by a metal band on limb 2, this band being connected to a capacity sensitive switch, e.g., as described in Specification 645,732, [Group XXXVI], so that the switch is closed when the liquid reaches the level of the band.
Patent GB-1362744-A (GB)
Title: Devices for generating a pulsating stream of a proportioned mixture of atmospheric air and another gas
IPC: B01F23/10
Filed: 1972-06-19
Abstract: 1362744 Mixing gases in proportions SOC MINERVE SA 19 June 1972 [22 June 1971] 28646/72 Heading B1C Apparatus for supplying a gas/oxygen mixture to a respirator mask comprises a chamber 18 supplied with pulsating pressurised oxygen from a source 21 through passage 19; the valve chamber 31 is also connected to the source 21 through passage 34 so that the valve 32, 33 operates in synchronism with the pulsations. As the pressure in chamber 18 rises the valve 32, 33 closes and the weighted bellows 22 is compressed closing valve 25 and expelling the gas in the bellows through passages 26, 27 to the face mask. As the oxygen pressure falls, the bellows expands and valve 32, 33 opens; part of the oxygen in chamber 18 is drawn into the bellows through passages 30, 16, apertures 6a, 6b, chamber 3 and valve 25, and the rest is vented through passage 29. Atmospheric air is also drawn in through passages 28, 17 and respective apertures 6a, 6b and mixes with the oxygen in chamber 3 and the bellows. As shown in Fig. 2 the apertures 6a, 6b are arranged in two concentric arcuate rows and are opened to the oxygen and air supply passages 16, 17 by arcuate recesses 12, 13 in the bottom of a drum 7 rotatable by means of a knob 11 with respect to the disc 4 in which the apertures 6a, 6b are formed, thus altering the number of apertures through which the gases can flow. The total number of apertures in use is always the same so that the total output of gas mxiture is constant irrespecive of the air/oxygen proportions.
Patent GB-617244-A (GB)
Title: Improvements in and relating to the generation of grid voltages for the grids of electric vapour arc or discharge convertors
IPC: H02M1/04
Filed: 1945-10-30
Abstract: 617,244. Converting. AKT.-GES. BROWN, BOVERI, & CIE. Oct. 30, 1945, No. 28676. Convention date, March 28. [Class 38 (ii)] In convertors of the vapour arc or discharge type, the grid voltage of the convertor is applied through an intermediate transformer from a source of synchronized high-frequency impulse trains which are rectified before application to the transformer, the secondary of which is connected to the grid-cathode circuit so that negative pulses of rectangular form are supplied during blocking periods and positive impulses, due to the collapse of transformer flux, are applied to the grid in the intervals between the pulse trains. Fig. 2 shows an arrangement in which a high-frequency oscillator k is synchronized with the power source o by means of the secondary m of a power transformer which supplies the anode circuit of the convertor a. The oscillator thus supplies pulse trains of steep wave front to a tuned-input rectifier f in series with the primary winding of the intermediate transformer e. A smoothing condenser i shunts the primary of this transformer. The amplitude of the negative impulse from transformer e increases with the resistance in the grid circuit so tending to ensure ignition.
Patent GB-743951-A (GB)
Title: Improvements in oil cans fitted with reciprocating pumps
Inventor: TURLEY CHARLES EDWARD
IPC: B05B11/00
Filed: 1953-10-19
Abstract: 743,951. Oil cans fitted with reciprocating pumps. WESTWOOD, Ltd., A. E. Oct. 19, 1954 [Oct. 19, 1953], No. 28727/53. Class 102(1). The lid 2 for attachment to an oil container 3 is formed integral with a boss 5 for the attachment of a spout 10, a boss 4 for the attachment of a reciprocating pump 4a, an upstanding lug 13 forming the fulcrum for a lever 14 for actuating the pump, and a radial lug  11 having a projection 12 that forms a rivet for the attachment of the handle 15. Preferably the lid is die-cast.
Patent GB-635860-A (GB)
Title: Improvements in or relating to food handling machines
IPC: A23N7/02
Filed: 1947-10-28
Abstract: 635,860. Peeling vegetables &c. HOBART MANUFACTURING CO. Oct. 28, 1947, No. 28752. Convention date, Dec. 4, 1946. [Class 28(ii)] A vegetable peeling machine or the like has a peel trap in its base comprising a perforated basket 85 suspended by brackets 83 within a removable drawer 52 which slides within a housing 34. The drawer 52, open at the top and closed on all sides, has an outlet in its base provided with a valve seat 66, and a valve 67 is mounted on a plunger 68 operated by a handle 72 and lever 73. An outlet pipe 11, from the peeling machine, supplies peelings, skins, &c., carried in a liquid stream to the basket top, the liquid draining therethrough to fill the drawer 52 to an overflow level extending along the drawer rear wall. The liquid flows into the housing base and discharges through a pipe 40. The greater part of the basket is immersed in liquid, and the low velocity of liquid flow prevents clogging of the basket perforations. Before removing the basket for cleaning, valve 67 is opened and the drawer pulled forward. Specification 337,131, [Class 28(ii)], is referred to.
Patent GB-651318-A (GB)
Title: Improvements in or relating to the production of silver-halide photographic emulsions
Inventor: SMITH ROBERT CHARLES MORRIS
IPC: G03C1/015
Filed: 1948-11-05
Abstract: 651,318. Photographic emulsions. ILFORD, Ltd. Nov. 5, 1948, No. 28859. Addition to 585,758. [Class 98 (ii)] A photographic emulsion is prepared by forming by double decomposition a suspension of silver halide in an aqueous solution of gelatine and adding thereto, at a low pH value, sufficient of an aromatic sulphonate which is not surfaceactive but has a hydrophobic group in the anion to cause precipitation of the gelatine phase containing the silver halide, separating the so-formed gelatine/aromatic sulphonate complex containing silver halide, washing the separated complex, and redispersing in a predominantly aqueous or predominantly organic liquid medium to form the emulsion. The aromatic sulphonate may be used in admixture with an anion soap. The complex may be used to form a highly concentrated emulsion for drying. The emulsion may be ripened before formation of the complex, and the emulsion formed by re-dispersion may be digested before coating. The aromatic sulphonate may be sodium naphthalene 1- or 2-monosulphonate, disodium naphthalene-1:5-disulphonate, trisodium naphthalene - 1 : 3 : 5 - trisulphonate, a naphthol sulphonate, or a dye such as Tartrazine. In example (1), the pH of a ripened fine-grain silver bromide emulsion is adjusted to 2.0 with sulphuric acid, an aqueous solution of sodium naphthalene-2-monosulphonate is added, the supernatant liquid is decanted from the precipitate, and the latter is dispersed in 40 per cent aqueous alcohol adjusted to pH 5.0 with alkali. The complex is re-precipitated by addition of 98 per cent ethyl alcohol, the supernatant liquid is decanted, the precipitate is soaked in water, and re-dispersed in aqueous gelatine solution. The resulting emulsion is digested and coated. In example (2), the procedure is similar using sodium 2 - naphthol - 6 - sulphonate, and in example (3), the procedure is similar to example (1) using an original emulsion of much greater gelatine strength. Specification 580,504 is referred to.
Patent GB-813729-A (GB)
Title: Improvements in compound girders
Inventor: WADE MALCOLM GEORGE EDWARD
IPC: E04C3/04
Filed: 1956-09-21
Abstract: 813,729. Girders. SHERRATT & SMITH Ltd. Sept. 23, 1957 [Sept. 21, 1956], No. 28878/56. Class 20(2) A lattice girder comprises two booms A<SP>1</SP> each made of a pair of angle sections welded at their flanges and connected by tubes B which may have flattened ends and be welded to both sides of the flanges or at the top of the flange (Fig. 7, not shown). The tubes may be inclined in opposite directions.
Patent GB-364116-A (GB)
Title: Manufacture of 1:4:5:8-naphthalene-tetra-carboxylic acid
Filed: 1930-09-26
Abstract: 1 : 4 : 5 : 8-Naphthalene-tetracarboxylic acid is obtained by treating the corresponding di-imide with concentrated or fuming sulphuric acid at an elevated temperature, the di-imide being obtained by the process of Specification 362,906.  According to an example, the di-imide is treated with concentrated sulphuric acid at 200-210 DEG , and the product precipitated.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the preparation of substitution products of 1 : 4 : 5 : 8-naphthalene-tetracarboxylic acid and the use of derivatives and substitution products of the di-imide as parent materials, and includes further examples in which the acid is obtained from the diphenyl- and dimethyl-di-imides respectively.  This subject-matter does not appear in the Specification as accepted.
Patent GB-783618-A (GB)
Title: Improvements in electromagnetic vibrators
Inventor: WADE ALEC RAYMOND
IPC: H02K33/18
Filed: 1954-10-07
Abstract: 783,618. Reciprocating electric motors. BRUSH ELECTRICAL ENGINEERING CO., Ltd. Oct. 7, 1955 [Oct. 7, 1954], No. 28893/54. Class 35. An electromagnet vibrator giving torsional and/or linear motion, comprises a coreless moving coil encircling a ring or bar of magnetizable material in a magnetic field, the coil being fed with A.C. In one form Fig. 2, producing only rotational vibration, the coil e embraces a fixed magnetizable disc or bar b separated by a small air space from the poles of a horse-shoe permanent or electromagnet a, the torque appearing at shaft m. In a modification, providing either sort of vibration, Fig. 10, the coil e is embraced by a pair of E-shaped magnets s, t, while the coil is supported for linear motion by springs r and for angular motion by shaft m. The polarity of the magnets is changed to alter the mode of vibration. A modification is described in which the coil is divided into two parts, one for each magnet, the connection to one part being reversible to change the mode of vibration. Specification 641,370 is referred to.
Patent GB-1449303-A (GB)
Title: Minimizing stepper motor oscillations
IPC: H02P8/32
Filed: 1974-06-28
Abstract: 1449303 Control of stepping motors PITNEY-BOWES INC 28 June 1974 [19 July 1973] 28915/74 Heading H2J  The coils 10, 11 of a stepper motor are controlled by cyclically switching transistors Q1 ... Q4 in pairs in a manner which minimizes motor oscillations whilst it is moving to a desired position, the oscillations ocurring when this position is reached being minimized by use of damping resistors 16, 17 and transistor 18, and a complete start-run-stop cycle of the motor being as follows:- (1) The motor is accelerated from rest by a succession of accelerating pulses as shown in Figure 2, until the motor displacement has caught up with the pulses after the initial motor lag due to its inertia. (2) The applied pulse rate is now changed to a constant value to match the motor speed, which is normally its intended maximum. (3) The motor is brought to rest by a succession of decelerating pulses, after a period of constant velocity operation produced by (2) above. (4) When the pulses have terminated, resistor 17 is connected into the motor circuit to supplement the resistor 16 present during the whole cycle, the transistor 18 being maintained conductive by the pulses to shunt resistor 17 during the cycle. The development of the damping circuit of Figure 4 is described with reference to a known damping circuit, Fig. 3 (not shown), and to the progressive reduction of oscillations produced by this development, Figures 6, 7 and 8 (not shown).