baber/WOPTO huggingface dataset:
Patent GB-903354-A (GB)
Title: Improvements in automatic electric cut-out devices
Inventor: DORRIES ALEXANDER
IPC: H01H73/30
Filed: 1961-02-10
Abstract: 903,354. Electrically - tripped switches. LICENTIA PATENT - VERWALTUNGSG.m.b.H. Feb. 10, 1961, No. 5126/61. Class 38 (5). An automatic cut-out comprises a movable contact 12 co-operating with a fixed contact 13 and carried by a bridge 5 which is connected by a flexible wire 16 to a bimetal strip 14 and has two lugs 6 containing elongated apertures, Fig. 6 (not shown). These apertures receive a spindle 4 coupled to a button 1 guided thereby in grooves in the casing and urged outwardly by a spring 2, a spring 8 ensuring the bridge 5 bears against an abutment 10 when the cut-out is " off." A latching pawl 17 is pivoted in recesses 19 in the casing and is biased clockwise by a spring 21. To close the cut-out, button 1 is pressed down to firstly engage the bridge end 11 with a projection 15 on the strip 14 and then engage the contacts 12, 13, further depression engaging a hook 20 on the pawl 17 with the spindle 4 to lock members 1, 5 in the " on " position, Fig. 2 (not shown). Flexure of the strip 14 upon overload releases the bridge end 11 to allow clockwise rotation of the bridge 5 to open contacts 12, 13 and disengage hook 20 from spindle 4 by means of a bridge projection 26, Fig. 3, springs 2, 8, 21 then returning the members to the position shown in Fig. 1. The centre of gravity and fulcrum of the pawl 17 are preferably coincident and the pawl may be arranged so that its end 22 actuates auxiliary contacts, Fig. 4 (not shown). In a modification, Fig. 5 (not shown), springs 2, 8 are replaced by a single spring mounted on the spindle 4 and bearing at its ends against the button 1 and bridge 5. The latter may be made of a resilient strip, in which case the elongated apertures in the lugs 6 are replaced by a simple bore. In a modified form of latching, Fig. 7 (not shown), the projection 26 is omitted and the spindle 4 has shaped surfaces co-operating with members 6, 20, to achieve latching in the " on " position and to produce unlatching by rotation of the spindle with the bridge 5 when the bridge end 11 is released.
Patent GB-179676-A (GB)
Title: Improvements in baby carriages, mailcarts, perambulators, invalid carriages, spinal carriages and the like
IPC: B62B9/18
Filed: 1921-02-15
Abstract: 179,676. Field, E. D. Feb. 15, 1921. Springs, arrangement of and mounting bodies on; push-bars.-An undercarriage for a perambulator &c. comprises a pair of longitudinal springs or a pair of longitudinal bars with springs secured thereto, the springs being curved downwardly and inwardly towards their ends, which are secured to the axles, and the axles being connected by one or more telescopic buffers. As shown in Fig. 1, the body of the perambulator is supported on a pair of longitudinal bars or springs carried by transverse bars h secured to the main springs a, the ends of which are connected at b to the wheel axles and are bent angularly for connection to the spring-controlled telescopic bars d. The bars or springs are at one end mounted to slide in brackets i. The telescopic bars are secured at .one end u to the springs a, and at the other end slide in apertures in the springs, and may be continued upwards to form handle-bars e. The shock-absorbing springs f, g may be fitted internally or externally at one or both ends of the bars. In the modification shown in Fig. 4, coil springs or buffers k fitted between the body and the springs a are positioned by plates r secured to the body and carrying end pins projecting downwardly through the springs &c. k and through apertures in or brackets on the springs a. The plates r may be pivoted at p to a lug on the underframe. The springs a may be arranged outside the body or between the sides thereof. In the modification shown in Fig. 5, separate springs a are secured to the body, additional springs or buffers n being provided; and in a further modification, single springs such as a, Fig. 1, are secured directly to the body.
Patent GB-1534875-A (GB)
Title: Hospital trolleys
IPC: A61G7/10
Filed: 1975-02-07
Abstract: 1534875 Hospital beds MATBURN (HOLDINGS) Ltd 30 Jan 1976 [7 Feb 1975] 5289/75 Addition to 1444802 Heading A4J [Also in Divisions B7 and B8]  A hospital trolley, for transferring a patient to and from a hospital bed, operation table or stretcher trolley, comprises a wheeled undercarriage I, a support column 6 pivoted on the undercarriage 1 about a horizontal axis 11, a lift ram 7 movable up and down in column 6, an upper frame comprising a side beam 8 rigidly carried by the ram 7 and parallel end-pieces 9 that can receive between them the hospital bed &c., the end-pieces 9 having vertically movable lift members 17 for locating stretcher poles P, a patient supporting bed member 24 that can be removably received in facing tracks 23 in the endpieces 9, and power means for raising, lowering and tilting the ram 7 and for raising and lowering the lift members 17. Ram 7 is raised and lowered by an electric motor 12. Support column 6 is pivoted by an extendible brace 14 connected between column 6 and undercarriage 1, and brace 14 is extended or retracted by an electric motor 16 via a screw-threaded mechanism. Each lift member 17 is raised and lowered by a lazy tong or scissor mechanism (18) Fig. 5 (not shown)  opened and closed by a motor 19 via oppositely handed screw-threads (20) and nuts (21).
Patent GB-727415-A (GB)
Title: Stepping circuit arrangement using two-terminal electrical trigger devices
IPC: H03K23/82
Filed: 1952-02-29
Abstract: 727,415. Multistable state circuits. STANDARD TELEPHONES & CABLES, Ltd. Feb. 29, 1952 [March 7, 1951], No. 5371/52. Class 40 (6). [Also in Group XIX] A stepping circuit, e.g. a counting chain, comprises identical shunt circuits and each comprising a " two-terminal trigger device " G1, G2 &c. (i.e. an electric device whose voltage/current characteristic, in respect of voltage appearing across and current flowing between two terminals, exhibits a negative resistance region) a rectifier G11, G12 &c. and a resistance A1, A2 &c. in series, and coupling condensers Cl, C2, &c., between consecutive shunt circuits. The potential normally applied across conductors a, b, across which the shunt circuits are connected, is insufficient by itself to trigger a device to the highly conductive condition, but when the potential is temporarily removed or reduced and then restored to normal by means symbolized by switch S an initially triggered device such as G1 is extinguished and the charge in the condenser such as C1 added to the applied potential causes triggering of the next device such as G3, the next operation of S causing a stepping to C3 and so on. The trigger devices may be cold-cathode gas-discharge diodes as shown, thermistors, p-type transistors or dynatrons.
Patent GB-1042751-A (GB)
Title: Improvements in electron-beam discharge devices
Inventor: ELY RAYMOND EDWARD VICTOR
IPC: H01J3/02
Filed: 1963-02-11
Abstract: 1,042,751. Electron beam apparatus; X-ray tubes. HELGER & WATTS Ltd. Feb. 11, 1964 [Feb. 11, 1963], No. 5439/63. Heading H1D. An electron gun unit, e.g. for an electron microscope, an electron beam welding or machining apparatus or an X-ray tube, has a cathode filament 24 mounted on an axially and/or rotatably adjustable support 26 for adjustment within the cathode focusing cup 7. The cup 7 is itself mounted for axial and/or rotatable adjustment on an insulator 19. The cathode support 26 is attached to the end of the core 27 of the high-tension supply cable 10 and an air-tight 0-ring seal is provided at 52. Micrometer adjustments are provided at 35 for the insulator 19 and at 36 for the cable core 27. The tubular stem 18 is clamped to the envelope 5 by a ring 61. In an X-ray tube the target 8 consists of a plurality of rings 81, 82, 83 of the same or different material, is adjustable rotatably and axially and is also water cooled. A flexible electrical contact (not shown) is provided to the anode tip.
Patent GB-589104-A (GB)
Title: Improvements in or relating to the recovery of wool fibres from mixtures containing wool fibres and cellulose ester fibres
IPC: D01C5/00
Filed: 1945-03-05
Abstract: Wool fibres are recovered from a mixture of textile fibres containing wool fibres and cellulose organic ester fibres by soaking the fibres in an aqueous solution containing an organic swelling agent for the cellulose ester and an inorganic carbonizing agent till the carbonizing agent has penetrated the cellulose ester fibres, drying the treated material, baking it so as to carbonize the cellulose ester fibres, and then washing so as to remove the carbonized cellulose ester fibres.  The wool fibres recovered from the mixture may be used in the preparation of woollen and worsted materials.  The material may be in the form of a fabric, e.g. one obtained by weaving wool and cellulose acetate yarns or fibres.  Decorative effects may be obtained by removing the non-woollen fibres.  The mixed textile material may contain cellulose fibres as well as wool and cellulose ester fibres.  The organic swelling agent may be ethyl alcohol, acetone, isopropyl alcohol, butyl alcohol, methyl ethyl ketone, or ethyl lactate. The carbonizing agent may be sulphuric acid, hydrochloric acid, phosphoric acid, or aluminium chloride.  The treating solution may be an aqueous solution containing 15-35 per cent ethyl alcohol, 4-8 per cent sulphuric acid, and 2-5 per cent hydrochloric acid. Carbonization may be effected by baking the dried materials for 5-30 minutes at 100-150 DEG  C.
Patent GB-1291942-A (GB)
Title: Sheeting for protecting buildings
Inventor: CUNNINGHAM-BOOTHE THOMAS ASHLE
IPC: E04G21/28
Filed: 1970-02-05
Abstract: 1291942 Protecting buildings T A CUNNINGHAM-BOOTHE 5 Feb 1970 5464/70 Heading E1A A building 10 is protected e.g. during erection, by an enclosure made up from sheets of P.V.C. attached to supports 12 erected around the building. For securing adjacent sheets, the outer edges of each sheet are provided with securing means in the form of self adhesive material incorporating hooks or loops (H, L, Fig. 5). The roofing sheet 13 however is connected to side sheets 14 by means of a securing strip 17 formed with locating apertures for supports 12, the edges of the strip being also formed with hooks or loops. Ducts 26 convey air into the interior and water is drained from the roof via tubes 25.
Patent GB-1237607-A (GB)
Title: Improvements in or relating to the metallisation of travelling non-metallic material
IPC: C03C25/42
Filed: 1969-01-31
Abstract: 1,237,607. Coating elongated substrates. SCHLADITZ-WHISKERS A.G. Jan. 31, 1969 [Feb. 2, 1968], No.5491/69. Heading C7F. In a process for the continuous metallisation of travelling elongated non-metallic material, the said material is heated in a pretreatment chamber by means of a heating gas to a temperature above the decomposition temperature of the metallic carbonyl used to supply the coating metal, and is conveyed through a constricted passage disposed between said pretreatment chamber and a metallisation chamber, wherein carbonyl gas flows at such a velocity in the same direction as the substrate material that their relative velocity is zero or reduced to a minimum. The substrate may be glass or plastics and the coating metal Ni.
Patent GB-423331-A (GB)
Title: An improved process for aerating fermentation liquids in the production of bakers' yeast
IPC: C12M1/06
Filed: 1933-09-26
Abstract: 423,331. Yeast; alcohol. NORDDEUTSCHE HEFEINDUSTRIE AKT.- GES., 8, Roonstrasse, Berlin. Sept. 26, 1933, No. 5568 /34. Convention date, Sept. 26, 1932. Divided application. [Class 14 (ii)] In the aeration of fermentation liquids in the manufacture of yeast with or without the production of alcohol, a horizontally directed helical streaming motion is imparted to the liquid by mechanical devices such as a propeller or screw, so that the air introduced into the liquid as a result of the motion is prevented from escaping as long as possible. In the apparatus shown the air introduced directly from the atmosphere by the propeller s into the fermentation vat g is supplemented by air drawn in through a conduit l.
Patent GB-802613-A (GB)
Title: Method of manufacture of manganese zinc ferrites
IPC: H01F1/34
Filed: 1957-02-19
Abstract: 802,613. Magnetic compositions. STANDARD TELEPHONES & CABLES, Ltd. (Nippon Electric Co. Ltd.). Feb. 19, 1957, No. 5600/57. Drawings to Specification. Class 38 (2). A manganese zinc ferrite made by compressing mixed oxides and then sintering and cooling them in air or nitrogen containing a small amount of oxygen, is heated at between 800 and 1200 C. and then cooled in a vessel in which the atmosphere has a pressure maintained at less than 10 mm. of mercury and in which the partial pressure of oxygen is less than 0.5 mm. of mercury, and preferably below 0.1 mm. A ferrite made by sintering for four hours at 1200 C. in nitrogen containing 0.05-0.07 per cent oxygen, a mixture of Fe 2 0 3 , 54 mol. per cent, MnO 35 mol. per cent, remainder ZnO, is slowly cooled at 100 C. per hour, then heated at 1000  C. for 30 minutes at 10-<SP>2</SP> mm. Hg pressure and finally slowly cooled at 100 C. per hour in the same atmosphere. Figures are given for the ferrite before and after the reheating, showing that initial permeability is increased and hysteresis and residual losses are reduced by expulsion of oxygen from the outer layers, where Mn 2 O 3  resulting from the sintering is converted to MnO by the reheating. To keep the rise in eddy current loss low, the sintering temperature should be below 1220 C. The properties of ferrites of the above constitution when sintered at 1150 and 1280 C. are also given. To prevent the evaporation of zinc oxide when the reheating is at above 1100 C., nitrogen or other inert gas is allowed to leak into the vacuum.
Patent GB-234210-A (GB)
Title: Improvements in and relating to the protection of metals
IPC: C23C10/28
Filed: 1924-03-04
Abstract: 234,210. Ferranti, S. Z. de, and Ferranti, Ltd. March 4, 1924. Coating. - Metals liable to amalgamation by mercury are protected by applying a coating of a metal not normally subject to amalgamation with mercury, and subsequently by heat treatment effecting alloying between the coating and the metal to be protected. The process is particularlyapplicable to the copper rotors and contacts of mercury motor meters, to which a coating of platinum is applied electrolytically, heated slowly to about 700‹ C. in a vacuum or inert atmosphere, maintained at this temperature until the alloying has extended to the required depth, and allowed to cool. The rotor may subsequently be subjected to a pressing or planishing operation. An additional metal may be applied between the base and the coating.
Patent GB-747046-A (GB)
Title: A new or improved erasing device
Inventor: DONKIN WILLIAM HARRY
IPC: B43L19/00
Filed: 1954-02-25
Abstract: 747,046. Erasers. OFREX, Ltd. Feb. 25, 1954, No. 5617/54. Class 146(3) An erasing device comprises an eraser 4 in the form of an elongated narrow rubber strip coiled within a, one-piece circular dish-shaped holder 1 and having its outer operative end passed through a restricted passage in a rigid tangentially projecting finger 3 which grips and supports it in use. The circular body 2, open at one side, may be moulded integrally with its finger 3 from plastic material; the finger 3 has a tip completely surrounding the strip 4, and is waisted with an aperture 5 to facilitate feed by finger and thumb; the restriction 6 prevents reverse movement.
Patent GB-1137133-A (GB)
Title: Method of longitudinally compressing filaments and manufacturing an article e.g., a pneumatic tyre
Inventor: FLETCHER HENRY RAYMOND
IPC: B29D30/38
Filed: 1965-02-10
Abstract: 1,137,133. Making tyres. DUNLOP CO. Ltd. 1 Feb., 1966 [10 Feb., 1965], No. 5692/65. Heading B7C. [Also in Divisions B5 and D1] A method of making a tyre comprises laying a sheet of unvulcanized rubberized filamentary fabric incorporating a plurality of filaments which extend in substantially parallel side-byside relationship on a corrugated steel plate 1, applying suction through vents 3 to bring the sheet and fabric into intimate contact and thus crimp the filaments, applying to the surface of the fabric a sheet of unvulcanized rubber 7 having applied to its other surface a layer 8 of polythene, said rubber sheet adhering to the fabric at spaced positions, laying the adhered assembly on a flat surface, rolling the assembly to flatten the fabric layer and thus longitudinally to compress the filaments between the spaced positions, wrapping the compressed assembly around a cylindrical tyre carcass on a former, removing the polythene sheet, optionally applying a second compressed assembly such that the filaments are in opposed direction to the filaments of the first assembly, placing the assembly in a tyre mould where the diameter of the tyre is increased thus partially or completely decompressing the filaments. In a further embodiment, the fabric is crimped by applying it to a corrugated roller and applied directly to a tyre former or carcass where compression is effected.
Patent GB-1427663-A (GB)
Title: Gangway constructions
IPC: E01D15/24
Filed: 1974-02-07
Abstract: 1427663 Gangways J J MAMPHEY 7 Feb 1974 [9 Feb 1973] 05699/74 Heading B7J A gangway construction, particularly for access to a tanker vessel 9, comprises a gangway 7 which at one end is movable vertically along a tower 2 in concert with a vertically movable annular platform 6 which surrounds a spiral staircase 14 disposed in the tower 2. The connection of the gangway 7 to the platform 6 allows relative pivotal movement about a horizontal axis, the gangway being movable to an inoperative position by a hydraulic plunger 11 or by a hoist. When the gangway is in use, deviation of its angle of inclination to the horizontal by a selected margin actuates vertical movement of the platform 6 to correct such deviation, such corrective movement also stopping so that the platform is level with a step of the staircase 14. This vertical movement is effected by the system shown in Fig. 4 in which the platform is suspended on cables 17, counterweighted at 18 and driven by a hydraulic motor 23. The inner periphery of the platform 6 may be provided with a railing which is so turned during the lifting and lowering of the platform and gangway that there is always an opening in the railing opposite that step of the staircase which is flush with the platform.
Patent GB-415466-A (GB)
Title: Process for the manufacture of alkali metal hydroxide solutions
IPC: C25B1/44
Filed: 1933-02-25
Abstract: <PICT:0415466/III/1> Alkali metal hydroxide solutions are obtained by passing alkali metal amalgam in counter-current to water over a suitable catalyst at an elevated temperature, e.g. 30--100 DEG  C. Suitable catalysts include graphite, coke, carbon, iron and alloys of iron with nickel and/or chromium.  Sodium amalgam is introduced into a tower 1 by a pipe 4, while water is introduced through a pipe 5. The amalgam passes through a sieve plate 2 and over pieces of graphite filling the tower.  Mercury leaves through a pipe 6, hydrogen escapes through a pipe 7 and 60 per cent sodium hydroxide leaves through a pipe 8.  Pipes 9 constitute a heating device.  A temperature of 60 DEG  C. is maintained by the heat of the reaction.
Patent GB-348723-A (GB)
Title: Improvements in and relating to non-splintering glass
Filed: 1930-02-21
Abstract: 348,723. Compound transparent sheets. FIELD, C. H., 4, Albert Road, Brockley, London, and HASLETT, D., The Shack, Bisley, Surrey. Feb. 21, 1930, No. 5867. [Class 140.] Sheets of glass are joined to a cellulose ester sheet by means of a solvent mixture for the cellulose ester containing lactic acid and preferably ethyl lactate in the proportions of 1 to 100 parts by weight. Cellulose acetate and/or nitrate may be dissolved in this mixture and applied to the glass sheets or the cellulose ester sheet or both before uniting by pressure. The glass sheets may be coated with the solutions above and united without an intermediate cellulose ester sheet. The treated sheets may be united according to the process described in Specification 321,189, [Class 20 (iii), Doors &c.].
Patent GB-653330-A (GB)
Title: Improvements in or relating to radio locating systems
IPC: G01S7/10
Filed: 1948-02-27
Abstract: 653,330. Radiolocation. DEPARTMENT OF COMMERCE, DIRECTOR OF THE OFFICE OF TECHNICAL SERVICES OF. Feb. 27, 1948, No. 5950. Convention date, Aug. 1, 1945. [Class 40 (vii)] A pulsed radar system has a cathode-ray tube plan-position indicator 10 with variable azimuth and range markers 28 and 24 which can be lined up on a selected target by means of hand wheels 32 and 58 respectively, together with an auxiliary cathode-ray tube 20 to provide an expanded presentation of a small sector 30 as a B-type display having its origin representative of the intersection of said variable markers. Hand wheel 32 is coupled to the azimuth marker and the azimuth sweep unit 38 for the auxiliary indicator via a magnetic clutch 34 and friction sleeve 35. Hand wheel 58 is similarly coupled to the range marker unit 66 via clutch 62 and sleeve 64. The hand wheels are also respectively coupled via magnetic clutches 49 and 77 to potentiometers 52 and 80 to provide variable D.C. deflecting potentials to the indicator 20. Springs 56 and 84 return the movable taps on these potentiometers to the centre earthed positions whenever the magnetic clutches are de-energized. The magnetic clutch switches and switches 48 and 76 take the B position during the scan of the angle marked " B " on the P.P.I. and thus the hand wheels are ineffective over this angle and a target appearing at 86 on the P.P.I. would appear as at 88 on the B-type display. As soon as the scan leaves angle " B " and enters the larger angle " A," the switches are automatically moved to the A position (for example, by a relay in the azimuth sweep unit 38). The magnetic clutches are thus engaged and the movable potentiometer taps 78 and 50 (at earth potential), are connected to the auxiliary scope 20 on which a spot 96 is produced by the closing of switch 90 which applies an increased positive voltage to the tap 94 and the control grid connected thereto. The hand wheels are now turned to cause the spot 96 to move into coincidence with the afterglow of spot 88, and at the same time reset the range and azimuth markers, the coupling to which is so designed that when spot 96 coincides with 88 the intersection of markers 28 and 24 is accurately placed over spot 86. When the " B " angle is next scanned, the switches revert to their B positions and the spot 88 appears at the centre of the display 20. Counters 36 and 68 give accurate readings of azimuth and range to this selected target and means such as Selsyns may be employed to transfer these values to a distant point. Friction sleeves 35 and 64 prevent springs 56 and 84 affecting the settings while the magnetic clutches are engaged and prevent accidental displacement of the markers while the clutches are disengaged.
Patent GB-588906-A (GB)
Title: Improvements relating to assemblages of push button switches for radio apparatus
IPC: H03J5/32
Filed: 1945-03-10
Abstract: 588,906. Keyboard switches. BOOTH, E. R. March 10, -1945, Nos. 6032 and 7982. [Class 38 (v)] In an assemblage of interlocking push-button switches, cam faces L and notches M on the pushrod G of each switch depresses and is engaged by a locking bar I, so that operation of any push-button releases any other previously depressed, which is returned to the inoperative position by a spring K. The latter engages under the bar I and surrounds a shaft on which the bar I is pivoted, and rotors B are rotated by lever-arms F attached to the push rods. The stators A of Fig. 2 (not shown) are assembled on spacing rods, but in Figs. 3, 4, they are secured at one side in slots R' in a double channel bar by means of a bolt in one channel R. The other channel N has slots P in its wall to admit the push-rods and contains a series of balls O which prevent simultaneous operation of two buttons to the latched position. The cams and notches may alternatively be formed on the lever arms.