baber/WOPTO huggingface dataset:
Patent GB-840933-A (GB)
Title: Improvements in or relating to fluorescent high pressure mercury vapour electric discharge lamps
Inventor: MCKEAG ALFRED HAMILTON
IPC: H01J61/44
Filed: 1956-09-28
Abstract: 840,933. Discharge lamps ; luminescent materials. GENERAL ELECTRIC CO. Ltd. Dec. 10, 1957 [Sept. 28, 1956], No. 29755/56. Class 39(1). A H.P. mercury vapour discharge lamp, which may also contain argon, comprises a glass or quartz discharge envelope 1 contained in a glass jacket 6 having a thin coating 12 of fluorescent material on its inner surface consisting of zinc sulphide activated by phosphorus. The dimensions of the glass jacket 6 are such that in normal operation of the lamp at its rated wattage the temperature attained by the fluorescent material lies in the range from 150‹C to 250‹C. The fluorescent material can be prepared by the methods described in Specification 658,748. Alternatively a mixture of precipitated zinc sulphide, magnesium chloride, sodium chloride, and ammonium phosphate, with or without magnesium carbonate, is mixed with water to form a cream, dried at 150‹C, ground and fired at 950‹C for 15 or 30 minutes in a slow stream of hydrogen. The fluorescent material can be applied to the jacket 6 at a coating density of 2À5 mgms. per sq. cm. The electrodes 3 of the activated tungsten rod type are each connected to one end of a molybdenum strip 4 embedded in a pinch 2. The jacket 6 is filled with nitrogen at a pressure of about 200 mms. The envelope is supported in the jacket by a framework extending between the neck 9 and a recess 11 at the other end of the jacket. The framework can carry a resistor connecting an auxiliary electrode, associated with one electrode 3, to the other electrode 3. Dimensions of the envelope and jacket are stated. The use of zinc sulphide, zinc cadmium sulphide and silicates, phosphates, arsenates and germanates as the fluorescent material is referred to. Specification 672,883 also is referred to.
Patent GB-1230814-A (GB)
IPC: C08L21/00
Filed: 1968-06-21
Abstract: 1,230,814. Resin-reinforced rubbers. CHEMISCHE WERKE ALBERT. 21 June, 1968 [22 June, 1967; 25 May, 1968], No. 29790/68. Heading C3P. A rubber composition containing rubbery elastomers as the sole polymer components is reinforced by incorporating therein an unmodified phenol novolak and hexamethylene tetramine in a manner such that they are incorporated at least in part separately and subsequently vulcanizing the composition. When a butadiene - acrylonitrile rubber of 25-40% acrylonitrile content is compounded with 5-80% of the phenol novolak, maximum reinforcement is obtained when the proportion of hexamethylene tetramine to novolak is at least 1% and has a maximum value rising from 4% at an acrylonitrile content of 25%, via 6% at an acrylonitrile content of 35%, to 10% at an acrylonitrile content of 40%, all per cent by weight.
Patent GB-204936-A (GB)
Title: Improvements relating to lifting jacks
IPC: B66F13/00
Filed: 1922-11-01
Abstract: 204,936. King, C. F. L., and Maxfield, A. I. B. Nov. 1, 1922. Operating handles.- In jacks of the kind provided with a universal joint in the handle, the joint also detachablv connects the handle to the lifting mechanism. The inner end of the handle 4 is formed with convex sides 5, or with projecting parts, adapted to engage the walls of a square or non-circular socket 3 in the jack actuating member 1. The outer end of the handle is made to fit the socket 3 in order that the handle may be used for positioning the jack. Alternatively, the walls of the socket may be curved instead of the handle. In a modification the socket is formed on the handle and a curved projection is provided on the member 1.
Patent GB-1216297-A (GB)
Title: Human body supporting device
Inventor: BROWN ROY LEE
IPC: A61G7/10
Filed: 1969-06-12
Abstract: 1,216,297. Cradles for supporting invalids. R. L. BROWN. 12 June, 1969, No. 29880/69. Heading B8H. An invalid support, adapted to be suspended from a lifting troller, Figs. 1, 2 (not shown), comprises a cross-bar 18 pivotally supporting a pair of J-shaped stainless steel members 16, 17. A chain 27 is anchored to one member 16 and is secured by a latch to the other member 17 whereby the maximum spacing of the members may be adjusted. In one mode of operation, the members 16, 17 are engaged beneath the thighs of an invalid and a belt, Figs. 2, 5 (not shown), is secured to loops 19 on the members and is passed around the back of the invalid. The support may, alternatively, be suspended from a carrier bar, Figs. 7-10 (not shown), provided at each end with handles whereby the bar may be lifted by a pair of attendants.
Patent GB-1237566-A (GB)
Title: Inertial reaction transducers
IPC: H04R11/00
Filed: 1968-06-24
Abstract: 1,237,566. Audio transducers. DYNA MAGNETIC DEVICES Inc. 24 June, 1968 [3 July, 1967], No. 30008/68. Heading H4J. An inertial transducer comprises a housing 40, a magnet and pole-piece assembly 34-36 secured to the inside of the housing and a U-shaped armature, one end 32 of which is attached to polepiece 34 and the other (free) end 31 of which can vibrate in the air gap of the magnet assembly and in the vicinity of a coil 33, the armature free end having mechanically coupled thereto a member 47 of predetermined mass whereby the response characteristic of the transducer is arranged to have a peak response at a particular frequency above which the response falls away, thereby reducing ambient signal noise in the transducer electrical output. As shown in Fig. 3, the member is a block 47 of lead which is carried by a flexible strip 46 of berylco mounted in a frame 52 attached to the housing via brackets 43. The block 47 is coupled to the iron-nickel armature arm by a rod or drive pin 55. In operation as a microphone, the housing is vibrated by contact or by incident acoustic energy causing vibration of the magnet (made of Alnico or Lodex), the polepiece assembly and the coil 33. The armature arm, however, is prevented from much vibration by the inertia of block 47. Electrical signals are therefore set up in coil 33. The ratio between the mass of the block 47, strip part 50 and armature arm 31 and the mass of the rest of the apparatus (housing, magnetic assembly, coil, &c.) is arranged to be in the range 0À05 to 0À35 to provide a frequency of peak response of between 2000 and 3500 Hz. A lead strain relief arrangement for the external leads (soldered at, e.g., 42) is described, Fig. 7 (not shown). The air gap can be adjusted by pushing part 37 of the armature arm. The device has application as a head or oxygen mask microphone or in an ear-insertion hearing aid.
Patent GB-1197881-A (GB)
Title: Mining Machine Cutting Tools
Inventor: FRANCIS SYDNEY
IPC: E21C35/18
Filed: 1966-07-05
Abstract: 1,197,881. Cutting tools for mining machines. COAL [INDUSTRY (PATENTS) Ltd. 22 Sept., 1967 [5 July, 1966], No. 30076/66. Heading E1F. A cutting-tool for a rotary cutting member of a mining machine comprises a body part 2, an end part 3 having a cutting-tip 9 secured to it and quick release securing means for securing the end-part to the body part, a tapered spigot 4 formed on the body part being engageable with a correspondingly tapered socket 5 on the end part. The spigot 4 has a groove 6 engaged by a pin 8 passing through the end part 3. The tip is of hard metal and is brazed, forged or shrunk to the end part 3. In a .second embodiment, Fig. 2 (not shown), the tip 9 is .removable from the end part 3, the tip being held in position and the parts 2, 3 being releasably secured together by a screw. Other examples of the quick release securing means are a resilient plunger or ring on the end part engaging with a recess or spigot on the body part. Cooperating flats may be provided on the spigot and the socket.
Patent GB-1471476-A (GB)
Title: Fuel injection pumps for multi-cylinder diesel engines
IPC: F02M59/26
Filed: 1974-07-08
Abstract: 1471476 Fuel injection pumps NIPPONDENSO CO Ltd 8 July 1974 [9 July 1973] 30120/74 Heading F1A In a multi-cylinder fuel injection pump, e.g. of the in-line type, wherein each of the pumping pistons is angularly adjustable and has an oblique control edge 2 which uncovers a spill port 5 to stop further delivery, some of the pistons are provided with a throttling discharge port I which connects the pumping chamber to the spill port 5 when the piston is turned to its rotary position corresponding to idling of the engine to be supplied by the pump. Thus at idling those cylinders of the engine fed by pump pistons with throttling discharge ports 1 are inoperative, thereby reducing the amount of unburnt gases emitted. At idling speed settings of the pistons but average or high engine speeds, the throttling effect of the discharge ports 1 ensures that the pistons with such ports do not become inoperative under these conditions. A longitudinal bore 4 connects the pumping chamber to the control edge 2 and discharge port 1.
Patent GB-1254817-A (GB)
Title: Drying apparatus for drying a moist web
IPC: F26B13/04
Filed: 1970-06-22
Abstract: 1,254,817. Drying moist webs by means of heated rollers. J. M. VOITH G.m.b.H. 22 June, 1970 [24 June, 1969], No. 30212/70. Heading F4G.  A paper web 4 is dried by passing it around heated rotatable rollers 1, 2 and 3 arranged in three horizontal rows, the rollers 2 being arranged between adjacent pairs of the rollers 1 and 3, wherein the diameters of the rollers 1 and 3 are larger, i.e. between 1¢ and 3 (preferably 2) times larger, than the diameters (preferably 2 metres) of the vertically staggered rollers 2, so that the free runs of web 4 between rollers 1 and 3 are kept small enough to prevent tearing of the web 4 while the effective contact area of the rollers is increased. The diameter of the upper rollers 3 may differ from that of the lower rollers 1, and the diameters of the rollers 1 and 3 may vary between each other. The rollers may have felt covers, and comprise jackets heated by a heating medium. The web 4 passes (while supported by a felt web) between two press rollers 5 and 6, and is supported by felt webs 7. A drying hood 8 contains radiant heaters or supplies hot air.
Patent GB-978003-A (GB)
Title: Apparatus for the control of airflow in ventilating installations
Inventor: KNARBAKK JOROLF
IPC: F24F11/75
Filed: 1962-08-08
Abstract: 978,003. Ventilators. NOBO FABRIKKER A.S. Aug. 8, 1962, No. 30389/62. Heading F4V. [Also in Division G3] The quantity of air flowing through a ventilating duct 4 is regulated automatically by a mat 7 of permeable material such as foam plastic, foam rubber, or felt, extending across the duct, the mat being of generally wedge-shaped form and being supported by supporting means 6. When the pressure differential across the mat 7 increases the sections of the mat are deflected as indicated by the dotted lines so that portions of the respective surfaces contact each other, thus restricting the area of the mat available for through-flow of air which is thereby maintained at a constant value. A screw adjustment 8 allows the mat to be tightened or slackened to vary the throughflow of air at any given pressure differential. In modifications, the mat is formed with a number of wedge-shaped sections (Fig. 3, not shown), or is conical in form (Fig. 4, not shown). In a further modification (Fig. 5, not shown), deflection of the mat alters the line of contact with inclined impermeable backing members to vary the through-flow area. The backing members may themselves be adjustable in position to alter the volume of air flow at a given pressure differential. Specification 863,937 is referred to.
Patent GB-504604-A (GB)
Title: Improvements in glass mould charging devices
IPC: C03B11/00
Filed: 1938-10-21
Abstract: 504,604. Glass manufacture; weighing-apparatus. PILKINGTON BROS., Ltd. Oct. 21, 1938, No. 30459. Convention date, Oct. 26, 1937. [Class 56] [Also in Group XVIII] Relates to apparatus for pressing glass in which a predetermined weight of molten glass is poured into a mould 18 from a ladle 30 or the like. According to the invention, the mould 18 is carried on a table 14 which is movable from a position beneath the pressing-plunger 22 to a charging and weighing position where the weight of the mould is transferred from the table 14 to a weighing device 15. The table 14 slides on guides 17 and is moved by a fluid pressure cylinder 11. The mould bottom has depending projections 20 which pass freely through holes in the table 14 and are situated above projections 16 on the platform of the weighing machine when the mould is in the charging position. The weighing machine is put into action by the downward movement of a lever 19 which raises the platform, and this lifts the mould off the table 14. Glass is poured into the mould until the required weight is indicated when the stream is severed either by hand-operated shears 31 or by means controlled by the descending movement of the charged mould. The filled mould is then withdrawn by the cylinder 11 to the pressing- position.
Patent GB-464514-A (GB)
Title: Copying attachment for typewriters
IPC: B41J35/30
Filed: 1935-11-04
Abstract: 464,514. Ink - ribbon mechanism. RABECK, K. Nov. 4, 1935, No. 30505. [Class 100 (iv)] In a duplicating attachment for typewriters, of the kind having at least two additional ink-ribbons, carriers at both sides of the platen for the retention of the ribbons in register with the writing line, and spools on the said carriers, each copying ribbon together with its spools and carrier and a pivot rod connecting the latter together constitutes a separate structural element which is freely rotatable about the pivot rod and is so mounted on the typewriter carriage that it can be swung upwards and backwards relatively to the platen. A bearing plate 31 is screwed to the paper apron B and is provided with an adjustable portion having at each end a slot 33. Into this slot may be dropped spindles 34 to which are - secured at each end curved sheet metal carrier strips 35, provided with deflecting ribbon guides 37. Each duplicating ribbon F, is fed from a supply reel 36 mounted on the strip 35, down one of the strips 35, across the printing line of the platen and up the other strip 35 to take-up reels 36. The take-up reels 36 are rotated by spring-returned levers 40, pivoted on the axes of the reels and carrying pawls 42 engaging ratchet wheels 43. Spring detents 47 for the ratchet wheels are provided, and spring brake-fingers engage the supply reels. The motion of the levers 40 is limited by pins 46 and slots 45. The levers 40 overlie each other so that when the uppermost is depressed all the ribbons are fed. Alternatively the ribbon-feed mechanisms may be automatically actuated, through suitable transmission mechanism, from a moving part of the typewriter.
Patent GB-847277-A (GB)
Title: Improvements in or relating to furnaces
Inventor: GANZ FELIX
IPC: F23C99/00
Filed: 1957-09-30
Abstract: 847,277. Returning products of combustion; liquid fuel fired furnaces; baffles. YGRIS A.G. Sept. 30, 1957, No. 30533/57. Class 51 (1). [Also in Group XIII] Liquid or gaseous fuel is burned in a cylindrical combustion chamber 2 enclosed in a water jacket W, a burner 4 directing the flame along the combustion chamber 2 so that the combustion products return along the upper port towards a passage leading to return flues 10. The burner 4 is mounted on the door 3 and the combustion chamber 2 is supported within the water jacket W by a pedestal 5 which forms a duct for the incoming water from inlet 7, holes 8 in the pedestal directing the water flow. A dome 9 at the burner end of the combustion chamber 2 communicates through curved nozzles with the flue tubes 10, which may have spiral baffles 14 or be fluted. The flue tubes 10 deliver to a water preheater 11. In a modification, Fig. 5, not shown, the dome 9 is replaced by a recess formed in the upper part of the door. In this embodiment, the combustion chamber is supported by lugs and the water is delivered to the jacket tangentially. The burner tube 19 and fuel nozzle 25 are mounted in a funnel shaped opening 20 in the door, Fig. 9, and a funnel 21 is mounted in front of the burner tube 19 to leave passages 22 for the combustion products to be entrained by the fuel and air. The amount of combustion products entrained may be regulated by axially adjusting the burner tube 19 and a static plate 23 at the outlet of the burner tube. The burner nozzle 25 and static plate 23 may be mounted in the mouth of funnel 21, Fig. 11, and the diameter of the static plate 23 may be variable to regulate the waste gas flow.
Patent GB-1528307-A (GB)
Title: Stroking universal joints
IPC: F16D3/205
Filed: 1977-07-21
Abstract: 1528307 Universal joints GENERAL MOTORS CORP 21 July 1977 [5 Aug 1976] 30632/77 Heading F2U In a universal joint with rollers 20 on trunnions 18 of the inner member engaging between fingers 32 extending axially from a flange 30 of the outer member, a sheet metal sleeve 40 extends over the fingers 32, has one end engaged on the flange 30 and has the other provided with radial tabs 48 each with an ear 50 which engages a part-cylindrical surface 36 on which runs a roller 20. The ear 50 prevents axial separation of the inner and outer joint members by a wedging action.
Patent GB-355095-A (GB)
Title: Improvements in and relating to thrashing machines having double dressing arrangements
IPC: A01F7/00
Filed: 1930-10-13
Abstract: 355,095. Thrashing-machines. BARON, H., 231, Strand, London.-(Lanz Akt.-Ges., H. ; 53, Lindenhofstrasse, Mannheim, Germany.) Oct. 13, 1930, No. 30643. [Class 58.] The shaker a is made wider than the machine frame and is enclosed by a cover f that is drawn in under the shaker to the width of the lower frame part e. A second driving mechanism h is built into the recess g below the shaker. The driving devices of the shaker are enclosed within the cover.
Patent GB-193140-A (GB)
Title: Improvements in or relating to means or apparatus for boiling water
IPC: A47J31/56
Filed: 1921-11-17
Abstract: 193,140. Brown, J. A. Nov. 17, 1921. Fluid-actuated fuel valves for water heaters: closure members; check loose ball valves.-In a water heater delivering boiling water, pressure owing to the development of steam acts to cut off the supply of gas to the heating means by operating on the underside of a flexible diaphragm s, Fig. 8, in the chamber t causing it to cut off more or less the passage of gas from the supply pipe 1, through the perforations u<x> round the edge of the check-plate x mounted on the adjustable tube r communicating with the burner. A suitable check valve for use in the apparatus is shown in Fig. 10 and comprises hemispherical parts 16, 17 fixed together, with a ball 22 within adapted to engage the seat 23 but kept from the opening 20 by a pin 27.
Patent GB-443853-A (GB)
Title: Improvements in or relating to closures for sheet metal drums, kegs and like containers
IPC: B65D45/34
Filed: 1934-10-26
Abstract: 443,853. Securing-ring for drum &c. closures. WAGSTAFF, H., 21, Bridgewater Street, Liverpool. Oct. 26, 1934, No. 30691. [Class 21] The covers or lids of sheet-metal drums, kegs, &c. are secured by the engagement with flanges or beadings on the cover or body of a divided channel-section ring 5 which is contracted by a toggle lever 7 pivoted at 9 to one end of the ring and detachably engages an abutment 6 on the other 'end. Lugs 12, 15 are apertured at 13, 14 to take a sealing wire. Eyes 9 for securing a rectangular wire hinge-loop 8 may be secured as shown, or their out-turned ends may be welded &c. to the outer faces of the ring and bolt. The abutment 6 may be formed by curling an extension of the base of the ring 5.
Patent GB-246974-A (GB)
Title: Improvements in or relating to electric insect traps
IPC: A01M1/22
Filed: 1924-12-20
Abstract: 246,974. Fillier, D. Dec. 20, 1924. Electric killing- appliances. - An electric insect trap comprises two conducting wires 44, 45 wound over an insulating frame 35 which is slid into a protecting casing 29, the arrangement being such that tha trap is rendered in operative by withdrawing the frame from the casing. Current is supplied by a cable 41 passing through the rear wall of the casing, this wall carrying contact springs 37, 39 which, in use, are engaged by pins 46, 47 on the frame 35; a resistance 40 may be included on the circuit and the pins 46, 47 are so arranged that contact is made whichever side of the frame is uppermost. The side walls 32 of the casing are grooved to form guides 34 for the frame and have holes to permit insects to enter, and the open top of the casing is fitted with protecting bars 31 having bevelled edges; at its front end the casing is closed by the enlarged end 50 of the frame. The casing may be shaped to form a cover for food or may be arranged beneath a casing containing a lamp for the purpose of attracting insects that swarm at night.
Patent GB-1394683-A (GB)
Title: Electromagnetic focusing and deflection assembly for cathode ray tubes
IPC: H01J29/46
Filed: 1972-06-30
Abstract: 1394683 Cathode-ray tubes RCA CORPORATION 30 June 1972 [6 July 1971] 30703/72 Heading H1D A cathode-ray tube, e.g. a vidicon, has a deflection coil assembly 15 which flares towards the target end of the tube which is also provided with a coaxial focusing coil 13 which either by its construction, or by applying different currents to different segments, creates a non-uniform focusing field. The deflection coils can be two pairs of saddle-shaped coils or four sections of a toroidal winding, Fig. 5 (not shown).
Patent GB-1061064-A (GB)
Title: Electric switch installations
IPC: H02H7/22
Filed: 1964-08-04
Abstract: 1,061,064. Protective arrangements; switchgear structures. SPRECHER & SCHUH Ltd. Aug. 4, 1964 [Aug. 14, 1963], No. 30809/64. Headings H2B and H2K. An earth leakage protective arrangement for high voltage switchgear having a conducting enclosure comprises earth leakage relays 25 ... 28 associated with the earth connections 21 ... 24 from sections 9 ... 12 of the enclosure, the sections being insulated from one another at 13 ... 15 and from earth at 16 ... 19. Each circuit comprises an isolator 3, a circuit-breaker 2 and isolators 5, 6 associated with bus-bars 7, 8. Each earth-leakage relay has two sets of contacts (not shown), one set controlling a indicator which indicates the location of an earth fault and the other controlling a tripping circuit for the circuit-breaker. Fig. 2 (not shown) illustrates an arrangement having an plurality of such arrangements in a duplicate bus-bar system, the isolators as 5 and 6 being provided with auxiliary contacts in tripping circuits such that an earth fault on the bus-bar side of any of the isolators 3 causes the opening of all the circuit-breakers connected to the same bus-bar as that of the faulty circuit. In a three-phase arrangement, each phase may have a separate enclosure though a common enclosure may be provided.
Patent GB-381371-A (GB)
Title: Improvements in or relating to rotary pumps
IPC: F01C21/10
Filed: 1931-11-06
Abstract: 381,371. Rotary pumps ; stuffing- boxes. FREY, S., 11, Am Park, Schoneberg, and VOELK, O., 31, Kleiststrasse, Steglitz, both in Berlin. Nov. 6, 1931, No. 30817. Convention date, July 10. [Classes 110 (ii) and 122 (v).] The curved vanes of a rotary pump are designed to have a specific gravity less than 2. The vanes 4a may be made of glass or pressed insulating materials with metal (such as brass or steel) inserts 6 and the vane pockets are lined with metal. The casing and rotor may also be formed of glass, ceramic materials or other non-metallic materials such as that registered under the Trade Mark of " Bakelite." For pumping acids the casing would be constructed of acid-proof material. The pump is designed to prevent contact between metallic and non- metallic materials. The liners 5 do not quite extend to the periphery of the rotor 2. The blades are given a radius of curvature such that they quickly respond to centrifugal action, but pressure in the working chamber C tends to force the blade 4a inwards and relieve pressure on the casing wall. The pump may operate vertically. Recesses g in the front of a blade are provided so that fluid pressure helps to withdraw the blade. The casing end wall 7 is held in position by a screwed ring 8, and a helical spring 11 acts between the packing glands 9, 10. Hemp and leather packing 12 may be used.