baber/WOPTO huggingface dataset:
Patent GB-503059-A (GB)
Title: Electrically controlled device for obtaining varying pressure in a cylinder with an operating period
IPC: B23K11/31
Filed: 1938-07-15
Abstract: 503,059. Pneumatic pressure apparatus ; welding. KNORR-BREMSE AKT.- GES., and SPRINGER, O. July 15, 1938, No. 21013. Addition to 487,530. [Class 8 (ii)] [Also in Group XXII] Electrically - controlled pressure - producing apparatus according to the parent Specification is modified in that the pressure cylinder contains two pistons having a portion of the stroke in common, the piston having the larger stroke carrying out the work of placing. the electrode into position and the other piston having the shorter stroke carrying out the exertion of, the variable pressure required during the working process of a welding machine. The cylinder 11 is equipped with a large piston 21 which itself forms a hollow cylinder and contains a small piston 23 limited in respect of the piston 21 by a flange 30 and is secured to a rod 22 which holds the electrode. The piston 21 has a hollow trunk rod 24 which is coupled by flexible pipe 27 with a pipe 26 passing to the main air supply which moves the piston 23: The supply to the piston 21 is by a pipe 28 from the controlling valve 29 and the return of the piston away from the work is effected by pressure through the pipe 17. The general apparatus according to the parent Specification is modified in that a second reducing valve is fitted between the cylinder and the step-by-step control member. In a further modification the second pressure stage is arranged to be independent of the first and is led to the cylinder on the inner side of the first stage reducing valve, and may then be set to work at a higher pressure.
Patent GB-831163-A (GB)
Title: Improvements relating to metallic paints
IPC: C09D5/10
Filed: 1957-07-03
Abstract: A paint comprises zinc dust admixed with an aqueous solution of potassium phosphate and of a soluble chromate or dichromate, the said solution having a pH of less than 8.  A small proportion of an organic wetting agent may be added; the composition may be thinned by adding water.  In an example, the potassium phosphate is formed in situ by mixing solutions of phosphoric acid and potassium hydroxide, and sodium dichromate is added; the pH of the vehicle so formed is 7. Zinc dust is then added.  The sodium dichromate may be replaced by a chemically equivalent amount of sodium chromate, ammonium chromate or dichromate, lithium chromate or dichromate, potassium chromate or dichromate, or stannic chromate.
Patent GB-445509-A (GB)
Title: Improvements in and relating to cutting mechanism for cigarette making machines
IPC: A24C5/28
Filed: 1934-11-16
Abstract: 445,509. Cigarette making machines. AMERICAN MACHINE & FOUNDRY CO., 511, 5th Avenue, New York, U.S.A. Nov. 16, 1934, No. 21128 /35. Convention date, April 20, 1934. Divided out of 445,954. [Class 130] In cutting mechanism for cigarettemaking machines, a revolving knife carrier 34 and the gearing driving the same is supported by a housing 23 which is movably mounted on a stationary housing 22 supporting a reciprocating ledger plate 66 and its driving mechanism, and a shaft 44<c> actuated by a handwheel 44 is provided for adjusting the position of the carrier with respect to the ledger plate while the mechanism is in operation. The shaft 44<c>, Fig. 3, is carried by a plate 44<a> secured to a bracket 44<b> on the base 6 of the machine and is threaded to engage a lug 44d on the housing 23, rotation of the shaft effecting a raising or lowering of the housing 23 relative to the housing 22. As shown, a sliding oil-tight connection 26 is provided between the two housings 22, 23. The knife carrier 34 and ledger plate 66 are both actuated from a vertical shaft 12, the former by a shaft 75 through a gear 68 integral with a sleeve 39 normally loose on the shaft 12, gears 69, 73 on a shaft 70, and a gear 74 on the shaft 75, and the latter by a rod 60 which is reciprocated by the shaft 12 through a gear 49, integral with a sleeve 38 loose on the shaft 12 and in tongue-andgroove connection with the sleeve 39, a gear 50, shaft 51, eccentric 54 carrying a crank pin 55, link 56, and a slide secured to the said rod 60. A clutch 46, keyed to the shaft 12 and actuated by a handle 48, is provided for putting the gear sleeves 38, 39 into driving connection with the said shaft. The mechanism is lubricated by oil which is forced by a pump 98 from a well O and through pipes 103 ... 108 into the upper part 24 of the housing 23, from whence it flows down through a bearing 41 of the driving shaft 12 to the gears 68, 69 and then through a second bearing 40, 42 to the gears 49, 50, and finally back to the well O ; simultaneously oil passes through a duct 110 to a well O<1> in a lateral extension 28 of the housing 23 which contains the gears 73, 74, and from the well O<1> through a channel 111, duct 112 and pipe 113, to the crank 55 &c. of the ledger plate driving mechanism. Speci.- fication 445,954 is referred to.
Patent GB-1140813-A (GB)
Title: Means for discharging bulk material from hoppers at a steady rate
IPC: B65D88/66
Filed: 1967-05-05
Abstract: 1,140,813. Discharge of hoppers. L. HUNKEL. 5 May, 1967 [5 May, 1966], No. 21137/67. Heading B8S. Means for discharging a loose bulk material at a steady rate of discharge from a hopper 1 equipped with an outlet cone 2 comprises a perforated plate 5 above the outlet cone 2 and a shaker 4 in the form of a flat grating extending substantially across the entire area of the plate 5 and directly above it. The shaker 4 is associated with drive means 6 located outside the hopper 1, vibration absorbing means consisting of swing metal elements 10 and 18 separating the shaker 4 including its drive means 6 from the hopper 1. As shown the shaker 4 is linearly reciprocated and is starshaped with hollow spokes 8 adapted to discharge compressed air for completely discharging the hopper 1, the ends of the spokes 8 being inter-connected by up-ended flat steel sections 12, 13. Fig. 2 (not shown) illustrates an embodiment wherein a star-shaped shaker is reciprocably rotatable within a small angular range.
Patent GB-1211650-A (GB)
Title: Improvements in pneumatic rotary motors
IPC: B25B21/00
Filed: 1968-05-06
Abstract: 1,211,650. Rotary motors. SKIL (NEDERLAND) N.V. May 6, 1968 [June 7, 1967], No.21272/68. Heading F1F. A rotary pneumatic motor particularly for use in hand held portable tools, e.g., an impact wrench, comprises a cylindrical member 15, Figs.1 2 having an eccentric cylindrical bore 18 rotatably mounting a rotor 25 so that the minimum and maximum spacing between the rotor and bore occurs at the 6 and 12 o'clock positions respectively and an inlet port opening into the bore adjacent the 6 o'clock position. The rotor includes at least three, four shown, radial axially-extending slots 43 each slidably receiving a vane 44 and housing a coilspring 45 between the vane and the base of the slot, with the coilspring of longitudinal extent such that when the motor is stationary its length is insufficient to urge a vane into engagement with the bore adjacent the 12 o'clock position, and when the motor is operating centrifugal force urges each vane into engagement with the bore and each spring away from the base of the slot when the associated vane is adjacent the 12 o'clock position. Thus during motor operation the springs are free from or relatively free from the base of the slots to reduce wear and lengthen the life of the vanes but at the same time have sufficient length and strength to urge that vane adjacent the 3 or 9 o'clock positions into sealing engagement with the bore to permit instantaneous starting of the motor. The rotor is supported by roller bearings 27, 32, drives the impact wrench through bevel gears 36, 38 and has a suitable thrust bearing 40.
Patent GB-1156607-A (GB)
Title: Cold Cathode Ionization Gauge
Inventor: TALLON JACQUES ANDRE FRANK
IPC: G01L21/00
Filed: 1967-05-08
Abstract: 1,156,607. Ionization manometers. SOC. ALSACIENNE DE CONSTRUCTIONS ATOMIQUES DE TELECOMMUNICATIONS ET D'ELECTRONIQUE "ALCATEL". 8 May, 1967 [9 May, 1966], No. 21282/67. Heading H1D. An ionization gauge anode 3 and cold cathode 1 made of non-magnetic electronically conductive material are located in the gap of a magnet having a plurality of pairs of polepieces 5, 5<SP>1</SP> and 6, 6<SP>1</SP> establishing a plurality of parallel fields with adjacent fields opposite in direction. The anode and cathode may be made of aluminium, and anode apertures 3a and 3b in register with the polepieces may be extended by metal sleeves (Fig. 4, not shown). In a practical embodiment (Figs. 5-7, not shown) steel polepieces are retained in cavities in a stainless steel cathode by cover plates, and the anode is supported by a ceramic insulator passing through a cap and lead seal secured over one end of the cathode bore by two screws.
Patent GB-712700-A (GB)
Title: Improvements in or relating to flame photometers
IPC: G01N21/72
Filed: 1951-09-10
Abstract: 712,700. Analysing solution photo-electrically. EVANS ELECTROSELENIUM, Ltd., and COLLINS, G. C. Sept. 10, 1952 [Sept. 10, 1951], No. 21283/51. Class 40 (3) A photometer for testing the quantity of a given element in a test solution comprises a burner supplied with a mixture of combustible gas, air and atomized test solution, light from the burner flame passing through a filter which allows only light produced by burning the e'ement in a colourless flame to reach a photoelectric cell, a galvanometer being provided responsive to the cell output. As shown, the solution under test is drawn through a capillary tube in a protective sleeve 10 by air which is supplied to the atomizer through a flexible tube (not shown). Thus a fine spray enters a mixing chamber 1 through nozzle 25. A further flexible tube 46 supplies a combustible gas such as coal gas, propane or butane which also enters the moving chamber near the point of entry of the spray. The moving chamber is provided with baffles 61, 62 which ensure that the gas, air and atomized test solutions are intimately mixed. The mixture passes to a burner 2 where it is burned, the light from the flame being reflected by concave mirror 12, condensed by a lens 13 passed through a filter 15 and a plain glass window 16 and received by a photo-electric cell 14. The end of the burner is flattened and has rows of holes 22 so that the flame is a flat one parallel to the surface of the photo-electric cell. The cell supplies a mirror galvanometer 17 receiving light from a source 48 and directing it into a fixed mirror 49 which reflects it to a translucent scale in the instrument casing. The zero of the galvanometer is adjustable by a knob 19 and a cam (not shown) which co-operates with a lever 59 to rotate the instrument movement as a whole. The range of the galvanometer may be adjusted by a potentiometer 20 calibrated in multiples of the galvanometer reading. The air supply to the instrument is through a nipple 31 and is controlled by a needle valve 35. The gas supply is through a nipple 39 and is controlled by a needle valve 4 and a pressure regulator 40. A recess 56 is provided in the side of the instrument housing which enables a beaker to be placed beneath the end of capillary tube 10. The housing is provided with a hood which pivots to allow access to the parts beneath. The burner is provided with a chimney 50 and the hood has a perforated plate above the chimney.
Patent GB-665330-A (GB)
Title: Improvements in or relating to the combustion chambers and pistons of internal combustion engines
IPC: F02B77/02
Filed: 1949-08-16
Abstract: 665,330. Pistons; cylinders. ALLIANCE EUROPEENE SOC. ANON. Aug. 16, 1949, No. 21293/49. [A Specification was laid open to inspection under Sec. 91 of the Acts, Feb. 17, 1950.] Class 122(i). [Also in Groups XXIII and XXVII] In an internal combustion engine the surface of the combustion chamber or the top surface of the piston 4, or both, is provided with a lining consisting of a mixture of sintered or fused quartz particles with metal particles, such as iron, so disposed therein that the outer surface of the lining consists entirely or mainly of quartz and the metal-contacting surface of the lining consists entirely or mainly of metal. The lining may therefore be brazed or soldered to the piston, Figs. 1-3 (not shown). As shown, the lining may be secured to the piston by a split ring 8, or in a modification, Fig. 5 (not shown), by a dovetailed joint with a vitreous enamel bonding therebetween (see Group XXIII). Again the lining may be secured by bolts countersunk therein and extending through the piston or cylinder to receive a nut or by countersunk rivets the heads of which are covered by a protective coating or plug, Fig. 6 and 7 (not shown). The cylinder wall may have a lining inserted in a shoulder therein whilst the cylinder head is made entirely of protective material and the piston has an integral layer of such material thereon, Fig. 8 (not shown). The piston may be protected by threading a flanged disc therein with, if desired, a clearance therebetween which may communicate with the inside of the piston and the crank case, Fig. 9 (not shown). Grooves or passages may be formed in the underside of the lining to permit passage of coolant therethrough, Fig. 10 (not shown). In a further modification, Fig. 14 (not shown), only the part of the piston head against which the hot gases impinge is protected. The Specification as open to inspection under Sect. 91 comprises further modifications wherein the piston head comprises alternate layers of non-metallic protective material and perforated sheets which are made of heat-resisting metal and are preferably staggered with respect to one another. The perforated sheets may be replaced by a lattice or net structure. The piston head may be provided with a composite lining comprising a porous inner layer of protective material such as porous graphite and an outer layer with a dense surface of the same material or another protective material such as quartz secured thereto by bonding or spraying. This subject-matter does not appear in the Specification as accepted.
Patent GB-735314-A (GB)
Title: Improvements in and relating to the manufacture of shoes with rubber soles
IPC: B29D35/12
Filed: 1952-08-25
Abstract: 735,314. Moulding rubber footwear. SCHNEIDER GES., J. & C. A. Aug. 25, 1952 [June 6, 1952], No. 21328/52. Class 87 (2). [Also in Group VII] In the manufacture of rubbersoled footwear an arch support 5 is formed integral with the sole 1 during vulcanization of the upper 9 and sole 1 and press last L by pressing rubber from the sole into a moulding cavity G in the last. For this purpose the sole may be made thick enough to supply rubber for the arch support, or the support may be formed from a rubber border or pieces of rubber placed on the edge of the sole before vulcanization of upper to sole, so as to flow into the cavity G under the pressure and heat of vulcanization.
Patent GB-1150287-A (GB)
Title: A Device for Extracting Pressed Gramophone Records from a Mould.
IPC: B29C37/00
Filed: 1966-05-13
Abstract: 1,150,287. Removing gramophone records from presses. TELDEC TELEFUNKENDECCA SCHALLPLATTEN G.m.b.H. 13 May, 1966 [13 May, 1965], No. 21335/66. Heading B5A. A pressed gramophone record (3) which remains on a lower die (2) of a gramophone record press (2) is removed therefrom by a device comprising a lever arm (5) supporting suction cups (4) at one end, the arm (5) being raised and lowered by a lifting drive (7) and roteted horizontally into and out of the press by a rotary drive (6). In a further embodiment (Fig. 2) the lever arm (25) is raised by a drive (26) intermediate its ends, the end of the arm (25) remote from the press being pivoted in a bearing (27), while the drive (26) is connected to a push and pull mechanism (28). In a final embodiment (Fig. 3) an arm (35) carrying suction pads (34) is rotated about its longitudinal axis by bevel gears so that it is lifted and turned simultaneously, both through 180 degrees of arc.
Patent GB-781076-A (GB)
Title: Improvements in towel holders or dispensers
IPC: A47K10/10
Filed: 1954-07-22
Abstract: 781,076. Towel racks. BARNES, H. Sept. 1, 1955 '[July 22, 1954], No. 21352/54. Class 52(5) Towels 11 are threaded on a vertical rod mounted between lugs 2, 3 of a wall bracket 1. Folded clean towels threaded on from the lower part of the rod are folded over the part 6 of a U-shape support which is provided with rubber sleeves 8 to grip the edges of the towels. After use a towel slides down the rod and depends from the limb 9a. The rod is locked in the bracket by a padlock passing through an aperture 4a or through an opening in the lug 2. A towel holder with used towels is replaced by a towel holder, charged with clean towels, removal' oaf, individual towels being prevented by the knob 12 and sleeve 13 which is secured by a grub screw requiring a special key for its removal.
Patent GB-934554-A (GB)
Title: Methods of obtaining substantially stable concentrated extracts of red vine (vitis vinifera) and the extracts resulting therefrom
IPC: A61K36/87
Filed: 1961-06-14
Abstract: An extract having physiological action as a modifier of vascular spasms and capillary permeability is obtained by treatment of the dried and crushed leaves of the red vine (Vitis Vinifera) with warm (60-90 DEG  C.) aqueous alcohol (e.g. 50-80% ethanol-water).  The mixture is then cooled and about 1 to 5 parts per 1000 by volume of a mineral or organic acid is added and after agitating for up to 5 hours the extract is filtered, an anti-oxidant (e.g. ascorbic acid or a metabisulphite) is added and the solvent is removed by distillation at between 20 DEG  and 50 DEG  C. under reduced pressure.  Further purification of the active material from chlorophyl, waxes and fatty matter may be achieved by extraction of the product with a water-immiscible, non-polar solvent, e.g. benzene or CCl4 or by redissolution in water, acidification and drying; and from tannins by saturation of an aqueous solution thereof with sodium chloride, filtration, extraction with an acidified water-immiscible C4 or C5 aliphatic monohydric alcohol from which the active material may be obtained by precipitation, e.g. by addition of ether, benzene or petroleum ether or by removal of the solvent.  The active material may be put up in conventional pharmaceutical forms, e.g. solutions, pills, granules, ointments and suppositories which may contain additional active materials, e.g. heparin derivatives, hydrocortisone and extract of Hirudo medicinalis.
Patent GB-1271431-A (GB)
Title: Improvements in or relating to electrical tools
IPC: H02P25/14
Filed: 1969-04-28
Abstract: 1,271,431. Control of A.C. motors. ROBERT BOSCH G.m.b.H. 28 April, 1969 [27 April, 1968], No. 21518/69. Heading H2J. [Also in Division G3] A tool is driven by an A.C. series motor producing full load torque when operating above the normal working speed. The speed may be stabilized by a centrifugal governor, or a tachometer generator associated with a thyristor. Alternatively, a resistor having an inverse voltage-characteristic is connected in series or in parallel with the motor armature. A safety device comprises a switch responsive to the pressure of the cooling air-stream for switching- off the motor when the speed becomes excessive. The centrifugal governor may have an additional pair of contacts acting as a switch-off device, or a vane-type governor may cause rapid braking in the event of excessive speed. In other embodiments, a safety relay responds to changing current distribution between field and armature, or to the voltage developed by a generator.
Patent GB-1001612-A (GB)
Title: Improvements in and relating to electrical induction apparatus
IPC: H01F30/08
Filed: 1962-06-04
Abstract: 1,001,612. Inductors. GENERAL ELECTRIC CO. June 4, 1962 [June 12, 1961], No. 21572/62. Heading H1T. An electromagnetic shield is interposed between a magnetic flux producing member and a wall of a container, the shield being coaxial with the member and with its intermediate portion further from the axis than its ends in order to have greater strength than a cylindrical one and to follow more closely the lines of flux. Fig. 1 shows coreless cylindrical inductor coil 11, copper or aluminium shield 23 and container 15, the shield being in the shape of two truncated cones having a common base on the centre line 21. The shield may be of spherical shape, truncated at opposite poles (Fig. 3, not shown). These shield shapes are said to provide improved flux confinement and to give rise to less acoustical noise than conventional cylindrical shapes. A thin flexible wall 43 may be mounted near the wall of the container to provide an air or gas pocket 41 for further reducing the noise, the wall 43 being of circular cross-section to provide sufficient strength to contain the oil filling without additional support. A heat exchanger may be used for cooling.
Patent GB-336304-A (GB)
Title: Improvements in and relating to scales and the like for use with wireless apparatus
IPC: G01S1/02
Filed: 1929-07-13
Abstract: 336,304. Graham Amplion, Ltd., Elford, E. N., and Sinclair, D. July 13,1929. Directive signalling.-Radio indicating and adjustment mechanism, particularly designed for radio-goniometers, comprises two relatively sliding scales and pointer, the scales being read against each other and one. scale having a unit division half that of the other, the higher scale or pointer moving with the element adjusted. Clutch mechanism is provided so that the two scales can move in unison. As shown, in Figs. 1, 2, scales 14, 15 on discs 12, 13 are graduated to 360‹ and 180‹ respectively, the disc 13 having two sets of graduations displaced 180‹. A direction pointer 16 and bearing pointers 30, 31 are mounted on a normally fixed but adjustable ring 17. The discs 12, 13 are clutched by a fibre, &c. washer 28 between a shoulder 27 on the operating spindle and the under surface ot the disc 12. By depressing the knob 24, the disc 13 is moved relatively to the disc 12 by a plate 20 and sleeve 19. In operation, the scale discs are moved together until signals disappear, the knob being then depressed and rotated to bring the same reading on the scale disc 13 into line with the pointer 16. The discs are then rotated together until signals re-appear, the reading on the disc 13 then giving the direction ot signals in the minimum intensity position. The direction with maximum intensity may be similarly read. In order to fix the hearing, the knob is turned to move the search coil on either side of the position found, and a sensing circuit is switched in, the bearing being read off on either one or the other scale on disc 13 accordingly as the reduction of signal strength occurs towards the pointer 30 or 31. A colour scheme for the scales and pointers may be provided.
Patent GB-653981-A (GB)
Title: Improvements relating to fluid-tight connections
Inventor: HAWORTH LIONEL
IPC: F16L37/138
Filed: 1948-08-17
Abstract: 653,981. Pipe joints. ROLLS - ROYCE, Ltd. Aug. 17, 1948, No. 21720. [Class 99(i)] A coupling for ducts, e.g. the inlet neck 10 of a gas turbine and the main air-casing 12 of the combustion chamber having outwardly directed flanges 11, 14 respectively comprises a split metal ring 17 of U-shaped cross section, adapted to embrace the flanges, and a clamping ring 19 of fixed diameter which slides over the split ring to retain it in position so that the internal pressure within the system loads the flanges and the limbs 17a of the split ring into sealing contact. The split ring may be in one or more parts and made of metal, e.g. aluminium, having a greater co-efficient of expansion than that of the clamping ring which may be of steel. The flange 11 has a pair of slots 15 to receive lands 16 on the flange 14, and the ring 19 has a flange 19a to engage the ring 17 and is retained thereon by a circlip 20 or by a plate bolted to the ring 19 to form a second flange.