baber/WOPTO huggingface dataset:
Patent GB-697737-A (GB)
Title: Improvements relating to the doors of lifts
IPC: B66B13/06
Filed: 1950-11-06
Abstract: 697,737. Operating and locking lift doors. WADSWORTH & SONS, Ltd., W., and RYDER, F. E. Nov. 5, 1951. [Nov. 6, 1950] No. 27021/50. Class 78 (iii). Means for operating vertically moving lift doors c, b comprises a motor operated rope s carrying clamps t, t<SP>1</SP> for pivoting lever u situated at each floor level and acting between parts on the lift cage and door. When the lift is brought to the required floor the rope is operated to lower the lever u so that it engages, a roller j  on a lever h pivoted to a bracket g on the lower door b. The lever u is constrained between the roller j and a track w on the lift so that the lever pivots to release the catch m from a bracket o on the upper door a thus releasing the lock of the doors. The clamp t<SP>1</SP> engages the catch m and lowers the door b and since the doors are connected by a chain c the upper door a rises and the doors are opened. To close the doors the rope s is raised, the door b is lifted by the clamp t, engaging member n on that door, the lever u then frees the lever h as the rope s returns to its initial position and the catch re-engages the lever u, being swung by a counterweight k. In a modification the tracks w may be selectively moved into and out of position. The locking means for the doors can be independently operated. The device can be duplicated at each side of the lift and the lift may have front and rear doors.
Patent GB-1300955-A (GB)
Title: Improvements in or relating to feeder heads and riser sleeves
Inventor: BODEN DONALD
IPC: B22D7/10
Filed: 1970-06-04
Abstract: 1300955 Feeder heads for casting moulds RESIL PROCESSES Ltd 4 June 1971 [4 June 1970] 27037/70 Heading B3F [Also in Division F2] A feeder head liner for an ingot mould or a riser sleeve for a casting mould comprises a tubular body 10 of heat insulating material having a top end and an insert end 11 which is inserted into the ingot or casting mould. A plurality of slits 12 are provided around the insert end 11 to allow flexing of the body 10 for compression when it is inserted in an ingot or casting mould head.
Patent GB-1117445-A (GB)
Title: Improvements in or relating to faller bars and other comb-like members
IPC: D02G3/40
Filed: 1964-07-01
Abstract: A faller bar or other comb-like member comprises a synthetic resin moulded about the butt ends of a series of pins and longitudinal reinforcement, the pins and reinforcement being fixed relative to each other only by the resin.  The resin may be a glass fibre reinforced nylon possibly with some graphite to provide self-lubrication or a hard grade polythene.  The pins may be mounted in a jig before being placed in the mould: the butt end of the pins may be flattened, bent or formed with heads.  The reinforcing element may be metallic, e.g. of spring steel and in a preferred form is a U-shaped channel in which the end of the pins are situated: alternatively the insert may be corrugated or ribbed.
Patent GB-281450-A (GB)
Title: Improvements in devices for indicating the quantity or level of liquid in a container
IPC: B60K15/06
Filed: 1926-10-29
Abstract: 281,450. Elms, R. Oct. 29, 1926. Indicating.-A device for indicating the level or quantity of liquid in a container comprises a float operating a system of levers giving a parallel motion to a bar or pointer. A float 14 is carried by a lever 13 pivoted at 15, and a rod 16 operates a lever 17 pivoted at 10 in a casing 6 having a flange which is secured to the tank 1 by a ring nut 8. The lever 17 remains parallel to the lever 13. The shaft 10 drives another shaft passing through a bearing 19 in a casing 20 located, in the case of a petrol tank, on the, dashboard of the vehicle. A bell-crank lever 21 is attached to a similar lever 25 by two short links 28, 29, the latter carrying a bar 31 which forms the indicating pointer and moves parallel to itself across a scale 35, Fig. 3, arranged on an indicator representing a section of the petrol tank. The connection between the shaft 10 and the indicator casing 20 may be a flexible shaft or an electric or magnetic drive. In a modification, the casing 20 is arranged horizontally on the tank 1, and the operating spindle is driven by bevel gearing connected by links to the float lever.
Patent GB-406231-A (GB)
Title: Improvements in or relating to axle assemblies for railway trucks
IPC: B61F15/14
Filed: 1933-10-03
Abstract: 406,231. Bearings. TIMKEN ROLLER BEARING CO., Denber Avenue, Canton, Ohio, U.S.A. Oct. 3, 1933, No. 27119. Convention date, Jan. 16. [Class 12 (i).] An axle-bearing construction for rail vehicles comprises two series of tapered roller bearings 6 mounted on the axle so that the larger ends of the inner races 1 face each other, these bearings being arranged in enlarged end portions of a housing 8 the middle portion 13 of which is longer than the width of the pedestal jaws 12 but narrow enough for them to straddle. This construction enables railway trucks fitted with plain bearings to be fitted with roller bearings with no alteration other than the cutting off of the journal collars. Further, a defective roller bearing may be replaced by a plain bearing. The inner races 1 are spaced by a sleeve 4 and the outer races 7 engage annular channels in the housing 8, which is split horizontally into two parts secured by bolts 11. An adjusting shim engages one of the channels for the outer races. The rollers 6 are shorter than their diameter. The housing 8 is provided with an end cover 9 secured by cap screws and its top portion co-operates with the usual truck equalizer.
Patent GB-313383-A (GB)
Title: Shoe tree with tensioning spring between the toe block and heel block
IPC: A43D3/14
Filed: 1928-09-21
Abstract: 313,383. Hartmann, G. Sept. 21, 1928. Trees and stretchers.- One end of a spiral wire spring 3 connecting the heel and toe blocks 1, 2 of a shoe tree is hingedly connected to the toe block at 11. The tree may have a. central longitudinal groove 14 the upper part of which extends above the hinge 11 and into which the spring 3 may be folded when desired.
Patent GB-232168-A (GB)
Title: Improvements in and relating to the separation of combustible constituents from clinkers, ashes and other furnace residues
IPC: B03B5/44
Filed: 1924-11-14
Abstract: 232,168. Rolland, J., (Assignee of Muller, A. F.). April 12, 1924, [Convention date]. Wet-separating. - Furnace residues are separated in a liquid medium having a specific gravity between the specific gravities of the constituents t'o be separated, the desired density of the medium being obtained by the addition to water of ground furnace residues which may be the fine portions of the residues to be treated separated from the remainder by sifting and ground.
Patent GB-967875-A (GB)
Title: Magnetic structures comprising fine particles of magnetic material disposed in a lead or lead alloy matrix
IPC: C22C11/00
Filed: 1961-07-27
Abstract: 967,875. Magnetic structures. GENERAL ELECTRIC CO. July 27, 1961 [Aug. 30, 1960], No. 27281/61. Heading H1H. In making a magnet comprising fine magnetic particles embedded in a lead or lead/antimony alloy matrix as disclosed in Specifications 815,919 and 906,717, a small amount of cadmium is included in the matrix material to prevent whisker growth. The cadmium may be added as pure metal or as PbCd alloy. In the matrix the ratio of the weight of cadmium to the weight of lead is 0.09 : 1. The magnetic particles may be iron, cobalt, nickel or alloys thereof.
Patent GB-461704-A (GB)
Title: Improvements relating to cheese cutters
IPC: B26D1/547
Filed: 1935-10-04
Abstract: 461,704. Cheese cutters. CALDWELL, W. J. Oct. 4, 1935, No. 27380. [Class 87 (ii)] A cheese-cutting wire A having flanged nipples B on its ends is tensioned in a bow frame E by means of a screw H fitted with a nut J having a lateral slit K to receive the wire and an axial hole L for the nipple shank, the flange of the nipple being clamped between the nut and the end of the screw. The frame E is formed of tubing and one arm C of the bow is pivoted on a base. The arm C has a slot F to receive the wire and a hole G for the nipple B. The shank of the screw H is of square cross-section and engages a hole N in the other arm of the frame, tension being applied by a wing nut O.
Patent GB-1004938-A (GB)
Title: Improvements in and relating to an adjustable wobble dado assembly
IPC: B27G13/14
Filed: 1964-07-02
Abstract: 1,004,938. Sawing. S. SAM. July 2, 1964, No. 27438/64. Heading B5L. A wobble cutter for cutting grooves of various widths in a workpiece comprises a cutter blade assembly having a blade 40, a pair of clamping plates 76, 78 formed with parallel outer surfaces and complementary inner surfaces inclined relative to the outer surfaces, and means for preventing relative rotation between the blades and clamping plates, and a spool assembly having end plates 12, 14 having parallel outer surfaces and complementary inner surfaces inclined relative to the outer surfaces and bearing against the parallel outer surfaces of the clamping plates, and means 39 preventing relative rotation between the end plates, the cutter blade assembly being rotatable relative to the spool assembly to adjust the inclination of the blade relative to the axis of a bore passing through the cutter, and the end plates being adapted to be clamped against the cutter blade assembly to hold the latter in a desired position relative to the spool. The blade 40 consists of an annulus carrying a number of cutting bits 44 around its periphery with the cutting edges 44 of some of the bits projecting on one side of the blade, and the remainder on the other side, the bits being of tungsten carbide and secured, for example, by silver welding to the annulus. The blade is received between the clamping plates 76, 78 which have hub portions projecting towards each other through the aperture of the blade and a sleeve member 89 is located within the aperture of the clamping plates and has a flange 90 extending between hub portions 22, 30 of the end plates 12, 14, the internal edge 91 of the flange being rounded and abutting a hub section 31 of the end plate 14 to radially locate the blade. The hub section 31 engages a cylindrical recess 26 in the end plate 12 and sleeves of different internal diameter may be inserted in the bores of the hub section to permit the cutter to be mounted on shafts of different diameter. A pin 39 prevents relative rotation between the end plates 12, 14, and further pins prevent relative rotation between the clamping plates 76, 78 and the blade 40. The blado assembly may be adjusted relative to the end plates from the position shown, in which the blade is parallel to the outer surfaces of the end plates and the width of the groove cut is equal to the width of the cutters, to a position 180 degrees from the position shown in which the blade is at maximum inclination for cutting the widest groove. Graduations on one of the end plates co-operating with a mark on a clamping plate may be provided to facilitate the setting of the cutter. When mounted on the reduced portion of a shaft, a nut may press the cutter against a shoulder on the shaft to press the end plates against the blade assembly so that the cutter is secured for rotation with the shaft.
Patent GB-449521-A (GB)
Title: Improvements in and relating to the manufacture of self-lubricating bearing metals
IPC: B22F3/11
Filed: 1934-09-25
Abstract: Self-lubricating bearing metals composed of a soft ground-mass containing hard particles are obtained by introducing the metal intended to form hard crystals, for example tin, in the form of an alloy, for example with antimony or copper, into the powdered soft material, and then pressing and sintering the mixture at a temperature below the melting point of the alloy.  The bodies produced are then impregnated with oil, preferably in vacuo.  With an alloy of melting point 700 DEG  C., the sintering may be carried out at 600 DEG  C.  Only part of the hardening material need be introduced as an alloy.
Patent GB-724287-A (GB)
Title: An extension cable sheathing press with stationary press-head
IPC: B21C31/00
Filed: 1952-10-31
Abstract: 724,287. Hydraulic presses. HYDRAULIK GES. Oct. 31, 1952 [Nov. 23, 1951], No. 27516/52. Class 69 (2), [Also in Group XXII] An extrusion press for sheathing cables with light metal and light-metal alloys comprises a stationary press-head, containers for the metal mounted at opposite positions on the presshead, movable cross-heads mounted one at each side of the press-head, main hydraulic pistons secured to the cross-heads said pistons moving rams in opposite directions towards the presshead and a hydraulic compensator by which a balancing of the pressures exerted by each ram is secured when the resistances to pressure differ. The extrusion press comprises two opposed containers 2 and 3 for receiving billets 4. Rams 5 and 6 are mounted on cross-heads 7 and 8 operated by pistons 9 and 10 in cylinders 11 and 12 respectively. Secondary pistons 13 are connected to the cross-head 7 and said pistons operate in cylinders 14 on the container support 15. The cylinders 14 are connected by a pipe line 16 to cylinders 17 containing cooperating pistons 18 attached to the cross-head 8. Similarly secondary pistons 20 are provided on the cross-head 8, said pistons acting in cylinders 21 connected by pipe-line 22 to cylinders 23 containing co-operating pistons 24 attached to the cross-head 7. In operation, if one ram should lag behind the other, additional pressure is fed to the cross-head of the lagging ram by the secondary piston of the other ram so that an exactly equal and oppositely directed motion of the rams is automatically obtained. The secondary cylinders 14 and 21 may be used for effecting the return stroke of the ram by incorporating control means 25 and 26 in the fluid lines which introduce fluid pressure from the hydraulic main to the cylinders 14 and 21. In another embodiment the piston 10a (Fig. 2) in cylinder 12a has a larger diameter than the piston 9 and the secondary pistons 20 transmit fluid pressure to co-operating pistons 24. Thus the working pressure of piston 9 which is less than that of piston 10a is constantly augmented by pressure from the secondary pistons 20 on the co-operating pistons 24 and synchronization of the rams is obtained. Additional pistons 30 in cylinders 31 are provided for the piston 9 when the piston 9 is larger than piston 10a in which case the synchronization of the rams is effected by connecting the cylinders 31 to the hydraulic main so that the pressure in the pistons 30 acts against the pressure in the piston 9. The pistons 30 may also be used as returnstroke pistons.
Patent GB-1426100-A (GB)
Title: Paint composition
IPC: C09D129/00
Filed: 1973-06-08
Abstract: 1426100 Hot melt traffic paints MITSUI PETROCHEMICAL INDUSTRIES Ltd 8 June 1973 [8 June 1972] 27523/73 Heading C3P Compositions for hot melt white traffic paints comprise (A) an acid-modified hydrocarbon resin, or an alcohol ester thereof, having an acid value of 0À10 to 15 and obtained from a normally solid thermoplastic hydrocarbon resin having a molecular weight of 500 to 3000, a softening point of 60 to 150 C. (ring and ball method) and a Gardner colour of not greater than 10, and (B) titanium dioxide. The hydrocarbon resin may be prepared by Friedel-Crafts catalysed polymerization of cracked petroleum fractions, or by cationic or free radical polymerization of styrene or substituted styrenes, the resins being optionally hydrogenated in the presence of a nickel catalyst. The acid modification may be effected by blowing the molten resin with oxygen or by reacting with an unsaturated carboxylic acid or anhydride, optionally in the presence of an organic peroxide. The compositions may also comprise fillers, e.g. calcium carbonate, crushed stone, and zinc white; and plasticizers, e.g. mineral oil, polybutene, soyabean oil and vegetable oil-modified alkyds. Examples describe traffic paints comprising titanium dioxide and (1) oxidized petroleum resin, (2-5) maleic anhydride-modified petroleum resin, (6) n-butanol ester of maleic anhydride-modified petroleum resin, (7) maleic anhydride-modified hydrogenated aromatic hydrocarbon resin, (8) maleic anhydride-modified styrene/vinyl toluene copolymer, and (9) maleic anhydride-modified petroleum resin, calcium carbonate and soya bean oil.
Patent GB-191198-A (GB)
Title: Improvements in advertising apparatus
IPC: G09G3/00
Filed: 1921-10-18
Abstract: 191,198. Suzzi, A. Oct. 18, 1921. Monogrammic signs. - In advertising apparatus of the type in which electric lamps are arranged in horizontal and vertical rows and controlled from corresponding rows of switches, the lamps 7 are. connected on one side to metal cylinders 6 embedded in insulation 5, and, on the other side, through a source of current, to a metal plate 9 provided with spring plugs 8. A sheet 11 of cardboard &c. is pierced with holes arranged to form a legend or design to be reproduced on the bank of lamps and is laid between the plates 5 and 9 so as to permit a selection of the plungers 8 to connect with the cylinders 6. The plate 9 may be raised and lowered by the screw spindle of a device similar to a copying press, and two switch-boards may be arranged in parallel and worked alternately. Systems using direct and three-phase currents are described.
Patent GB-746365-A (GB)
Title: Improvements in or relating to a high vacuum pumping device
IPC: F04F9/04
Filed: 1954-09-24
Abstract: 746,365. High vacuum pumps. SIEMENS-SCHUCKERTWERKE AKT.-GES. Sept. 24, 1954 [Sept. 24, 1953], No. 27733/54. Class 71. A high vacuum pumping system comprises a first stage pump, which as illustrated comprises an oil jet pump 4 supplied by a gear pump 5, a mercury vapour jet pump 3 and an oil diffusion pump 2 connected in series, in which the mercury vapour jet pump 3 is protected against penetration of oil vapours from the oil pump 2 and first stage pump 4 by heating devices 7, 9 in the inlet and outlet of the pump 3 and arranged to split up the oil vapours into permanent gases. The devices 7, 9 comprise electrically heated filaments which may be arranged to be switched on when the motor driving the pump 5 is started.
Patent GB-428214-A (GB)
Title: Improvements in or relating to alternating current commutator machines
IPC: H02K27/02
Filed: 1933-10-09
Abstract: 428,214. Alternating - current commutator motors. CROMPTON PARKINSON, Ltd., Arc Works, Chelmsford, and LOCHNER, R. A. W. A., 33, Newhall Street, Birmingham. Oct. 9, 1933, Nos. 27763 and 35462. Drawings to Specification. [Class 35] A polyphase alternating-current commutator machine is wound to produce oppositely rotating fields having different numbers of poles, one a multiple of another, and these fields are arranged so that stationary commutating zones are produced, the pitch of the rotor coils being approximately equal to the pitch of the commutating zones. The Specification describes a phase advancer with a two pole winding on the rotor l a four pole winding on the stator, and it is shown that if the fluxes produced by these two fields are equal, three equidistant stationary zones of zero flux are established. It is also shown that if B2, B4 represent the two pole and four pole field densities, and na, n2 and n4 the speeds of the rotor, the two pole field and the four pole field respectively, for zero generated voltage in a rotor conductor In order to generate a voltage to compensate for the voltage due to self-induction, the given ratio is altered. A simple four pole stator winding is described and also a four pole stator winding which balances the double frequency harmonics due to the rotor winding and interacts with the rotor winding to produce an angular shift of the resultant flux without producing these harmonics. The width of the commutating zones may be increased by the omission of coils. Stator windings connected in shunt to the brushes may be provided preferably arranged not to span a commutating zone. A machine is referred to having a two pole main field and a six-pole commutating field giving four commutating zones so that the machine is suitable for two or four phases. The invention is applicable to series, shunt or compound wound machines and to compensated induction motors, slip regulators, exciters or phase advancers. One of the Provisional Specifications states that the armature pitch may be varied slightly and that field of the lower pole number may be produced by windings or the stator or partly on the stator and rotor. The other Provisional Specification states that the magnetic fluxes produced by different pairs of poles may be unequal and also describes a machine with a four pole armature winding and an eight pole stator winding.
Patent GB-225539-A (GB)
Title: An improved method of governing high-pressure primary turbines and normal-pressure turbines
IPC: F01D17/00
Filed: 1924-11-20
Abstract: 225,539. Akt.-Ges. Brown, Boveri, et Cie. Nov. 26, 1923, [Convention date]. Motor power plant; regulating.- A high-pressure, turbine receives steam from a high-pressure boiler and exhausts to a normal pressure turbine. When the load is greater than can be met by the high-pressure boiler, the normal-pressure turbine is supplied with additional steam from a normal-pressure boiler. A safety valve exhausting into the normal pressure steam main is included in the exhaust line from the high-pressure turbine. A normal pressure turbine with governor-controlled steam valve and overload valve is adapted for use in this plant by the device shown in Fig. 4. The pressure oil for operating the valves passes through a box R which is isolated from the chamber below it by a valve V when the normal pressure turbine is being used alone. Under these conditions the governor control of the oil pressure is undisturbed. When the normal-pressure turbine is working with the. high-pressure turbine, the governor of the former turbine is adjusted so as not to vary the oil pressure, and the valve V is opened to connect the box R to the chamber below from which oil can escape by way of a spring-pressed valve V and thereby the oil pressure is prevented normally from attaining a pressure sufficient to open the overload valve. When an overload occurs, the stage, pressures increase and a diaphragm T, subjected to the pressure of a selected stage, is moved to close a valve W and thereby to stop the escape of oil. The oil pressure then rises and the overload valve is opened.
Patent GB-421845-A (GB)
Title: Improvements in or relating to miners' safety and like flame lamps
IPC: F21L23/00
Filed: 1933-10-10
Abstract: 421,845. Miners' &c. safety lamps. PROTECTOR LAMP & LIGHTING CO., Ltd., WHITTLE, W. H., and GALVIN, F., Eccles, Manchester. Oct. 10, 1933, No. 27848. [Class 75 (iv)] In a miners' or like safety lamp an external flange on a glass combustion tube 5 rests on an internal flange on a ring 7 which is securec to a chimney 4 by one or more bayonet joints. The Figure shows a slot 9 in the ring coacting with a pin 10 on the chimney, but this arrangement may be reversed. A gallery 11 which rests on the outer glass may be carried by the ring or by the chimney.
Patent GB-261733-A (GB)
IPC: A41H3/08
Filed: 1926-11-08
Abstract: 261.733. Freedman, J. R. Nov. 23, 1925, [Convention date]. Cutting-out for.-A fabric is provided with a design printed in fast colours and with dress outlines, to facilitate cutting out, printed in fugitive colours. When the outlines 36, 38, 40 of dresses of various sizes are provided, those of the largest dress may be printed in fast colours.