baber/WOPTO huggingface dataset:
Patent GB-858744-A (GB)
Title: Improvements in or relating to collapsible mop heads
Inventor: SMITH WILLIAM W
IPC: A47L13/253
Filed: 1959-07-31
Abstract: 858,744. Mop holders. DUST-TEX CORPORATION. July 31, 1959, No. 26297/59. Class 61. The handle of a mop is connected to a swab M by a head comprising a housing H having a top and bottom wall separated to provide a space therebetween, the housing carrying a socket member 4 for the mop handle 3 and opposed wings 1, 2 on opposite sides of the head for holding the swab, one of the wings being hinged to the head and movable from a position in which the wings are coplanar to a position in which the wings are relatively collapsed. The socket member 4 is hinged by mutually perpendicular pivot pins 5, 6 to a connecting member 10. Depending from the pin 6 is a member 7 which has a circular body positioned in a circular hole 9 in the top wall 14 of the housing. The member 7 is provided at its end with a flat cam 8 which is urged upwardly by spring means to maintain the cam in a rectangular recess 21 in the bottom of the top plate 14 of the housing. The stationary wing 1 comprises a rod member of substantially triangular shape having legs 17 which pass through slots in the end walls 13 of the housing and which provide a close fit between the top wall 14 and bottom wall 11 of the housing. The hinged wing 2 comprises a rod member having a heart shaped portion 2 with a cradle shaped base 18 journalled in slots 19 in the end walls 13 of the housing, the base 18 terminating in legs 20 normally maintained between the top and bottom walls of the housing. The legs 20 are locked in position by the cam 8. To collapse the wing 2 the handle is depressed against the upward bias of the spring 23 to remove the cam from the recess 21. The handle and cam are then turned through 90 degrees until the cam rests against stops 25 ; the legs 20 of the wing then spring towards one another underneath rectangular slots 22 in the top plate of the housing whereupon wing 2 may be readily collapsed by raising the mop from the floor. The parts of the wings outside the housing may be solid pieces.
Patent GB-931451-A (GB)
Title: Improvements in pipe and cable clips
Inventor: ROBB ALEXANDER
IPC: F16L3/12
Filed: 1958-08-15
Abstract: 931,451. Cable clamps. CHARLTON WEDDLE & CO. Ltd. Aug. 14, 1959 [Aug. 15, 1958; July 23, 1959], Nos. 26360/58 and 25391/59. Class 36. [Also in Groups XIV, XXII and XXV] Pipes or cables are secured to a transverse bearer bar 11 by a clip consisting of a saddle member 12, formed with an arched portion to extend over the pipe &c. and lugs 16 lying along the bar, and separate U-shape clamping members 14 applied with the base 19 lying on a lug and wings 21 depending one at each side of the bar for bending beneath the bar, the use of securing bolts, requiring bolt holes in the bars, being avoided. The arched portion has a strengthening flange 15 and upturned ends 17, to locate the clamping members, and a seating member 13, having upturned ends 18, is provided. The saddle member may have several arched portions and in a modification shown in Fig. 4 a single element forms the arch 23 and the seating member 24 and is secured by a single clamping member. In a further modification secured by a single clamping member the ends of the arch are formed as a lug and a bead respectively one end of the separate seating plate having a hook to embrace the bead. The clip may be of mild steel, aluminium, brass or copper and is used in securing pipes or cables carrying a heating medium in storage tanks in ships or in oil or sugar refineries, an insulating sheet being provided between the clip and the bearer bar if necessary. A hand tool to clench clamping members of thin material and a power tool for heavier materials are described.
Patent GB-387750-A (GB)
Title: Improvements in automatic screw-plug switches or cut-outs
IPC: H01H73/10
Filed: 1931-09-22
Abstract: 387,750. Electricallytripped switches. STOTZKONTAKT GES., Voltastrasse, Neckarau, Mannheim, Germany. Sept. 22, 1931, No. 26455. Convention date, Sept. 22, 1930. [Class 38 (v).] An annular groove containing one or more indiarubber rings 5 is formed in the body 1 of a screw-plug cut-out around the small Edison screw extension 3, the rings in the operative position of the body abutting on the protecting ring 4 on the fixed part 2. The rings may be fixed by cementing, screws, or clamps.
Patent GB-815744-A (GB)
Title: Improvements relating to pressure transmitters for liquid metal systems
IPC: G21C17/10
Filed: 1955-09-15
Abstract: 815,744. Fluid-pressure servo motor-control systems. GENERAL ELECTRIC CO. Sept. 15, 1955 [Sept. 21, 1954], No. 26474/55. Class 135. A pressure transmitter for liquid metal sys. tems comprises a tube 10 open at one end to the system and sealed at the other by a diaphragm 11 rigidly connected to a second diaphragm 16 which divides a hollow portion in a housing sealed to the tube into an upper chamber 17 and a lower chamber 18, the upper chamber having a port 40 for connection to a pressure gauge, force balance means being provided for imparting a force to the diaphragm 16 equal and opposite to that imparted thereto as a result of the system pressure, the force balance means comprising a port 30 for admitting pressure fluid to the chamber 17 and an exhaust port 32 having a nozzle 33 controlled by the position of the second diaphragm 16. The housing comprises a member 14 which acts as a backing member for both diaphragms and a cup-shaped cap 15. The port 30 leads through a restricted orifice 31 to the chamber 17 and the nozzle 33 is controlled by a spring valve assembly 36 urged against the diaphragm 16 by a spring 37. The chamber 18 is normally vented to atmosphere through a passage 42 but the latter may be used to admit a known pressure for calibration purposes. Most of the parts of the transmitter are made of a nickel, chromium, iron alloy known under the Registered Trade Mark " Inconel," or a variant thereof known as " Inconel X." The spring valve 36 and the nozzle 33 may, however, be of stainless steel, tungsten or molybdenum.
Patent GB-1083927-A (GB)
Title: Thermoplastic resin articles
IPC: C08J7/02
Filed: 1965-06-23
Abstract: Thermoplastic resins having a foamed structure only on a surface thereof are produced by treating one surface of a themoplastic resin article with a medium which is absorbable by the resin and which on heating to a temperature below the melting point of the thermoplastic resin is converted to, or generates a gas, and applying heat to the surface of the thermoplastic resin opposite to that treated with the said medium, thereby causing the treated surface to foam.  Suitable foaming agents are low-boiling liquids, e.g. trichlorofluoromethane, methylene chloride, acetone, xylene, carbon tetrachloride, methyl ethyl ketone, benzene, toluene or chloroform.  Suitable thermoplastic resins are polymers based on styrene, vinyl and vinylidene halides, vinyl acetate, cellulose acetate or butyrate, ethyl cellulose, acrylic and methacrylic esters, acrylonitrile, ethylene and propylene, and particularly a high-impact polystyrene which has a rubber compound grafted on to the molecule.  The heating is preferably carried out by circulating a hot gas around the surface not treated with a foaming agent.
Patent GB-1454923-A (GB)
Title: Furnaces
IPC: F23C7/02
Filed: 1974-06-15
Abstract: 1454923 Burning pulverulent fuel; controlling air supply LENINGRAD POLITEKHNICHE INST IMENI M I KALININA 15 June 1974 26631/74 Heading F4B Solid particulate fuel having a range of particle sizes is fed to an upright furnace mixed with primary air through a burner 4, secondary air is introduced through a nozzle 5 at the bottom of the furnace directed towards the burner 4, and the velocity of the primary air fed through the burner is adjusted so as to vary the proportion of the fuel which is burned in the swirl zone at the lower part of the furnace, so that the temperature at the outlet of the furnace is maintained constant. By changing the velocity of the primary air stream independently of the fuel/air ratio or the ratio of primary/secondary air, varying moisture content or grain size distribution of the fuel can be compensated.
Patent GB-1310193-A (GB)
Title: Switching systems
IPC: H01H33/59
Filed: 1971-04-19
Abstract: 1310193 Arc preventing in switches BROWN BOVERI & CO Ltd 19 April 1971 [10 April 1970] 26648/71 Heading H1N A D.C. switching system has series isolators S 1 , S 2  in the circuit of load L 0 , R 0  fed from a supply E. When the circuit is to be interrupted the isolator S 1  is opened as a controlled rectifier T 1  is caused to conduct so that current is passed by a resistor bank W 1 , diode D 1  and the rectifier T 1 . A controlled rectifier T 2  is next caused to conduct so that a previously changed capacitor discharges in opposition to the current in T 1 , which ceases to conduct so that resistance banks W 1  and W 2  feed current through the rectifier T 2  until the capacitor C is reverse charged so that only resistance bank W 2  is effective and then a switch K 1  is opened under no-load condition before the rectifier T 1  is again caused to conduct. The capacitor C discharges in opposition to the current in T 2 , which ceases to conduct so that the resistance banks are again in parallel until the capacitor C is charged, when a switch K 2  is opened under no load conditions to increase the resistance of bank W 2 . The current is switched alternately between the banks which each increase in resistance until all the switches K 1  to K n  are open and the current flows through resistance R n , diode D 2 , capacitor C, and rectifier T 1  which ceases to conduct when the capacitor C is charged so that the isolator S 2  can be opened. Inductances may be included in the circuit branches of capacitor C and controlled rectifier T 1  to limit the rate of current rise (Fig. 2, not shown).
Patent GB-1386226-A (GB)
Title: Method for the controlled formation of the layer of copper sulphide on a cadmium sulphide substrate
IPC: H01L21/00
Filed: 1973-06-05
Abstract: 1386226 Copper sulphide coating SOC ANON DE TELECOMMUNICATIONS 5 June 1973 [6 June 1972] 26651/73 Heading C1A A method for the controlled formation of a layer of copper sulphide on a cadmium sulphide substrate (e.g. in the form of a solar cell) comprises immersing the substrate and a substantially pure copper electrode in a solution of cuprous ions and maintaining the potential of the substrate constant with respect to and at least equal to that of the pure copper electrode. A suitable solution comprises 25 g. of CuI and 500 g. of KI in one litre of water, and optionally may contain a small amount of a reducing agent, e.g. hydrazine monobromide. The potential is maintained equal by connecting the CdS and the copper electrode directly, or the CdS may be kept positive relative to the copper by means of a battery.
Patent GB-421045-A (GB)
Title: Improvements in electric incandescent lamps
IPC: H01K1/16
Filed: 1934-09-17
Abstract: 421,045. Electric incandescent lamps; attaching filaments. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.- (Assignees of Patent-Treuhand-Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) Sept. 17, 1934, No. 26668. Convention date, Dec. 8, 1933. [Class 39 (ii)] The filaments of incandescent lamps are attached to the leading-in wires by means of short auxiliary wires transverse to the ends of the filaments and parallel to the ends of the leading-in wires and welded thereto ; the filaments may be welded to the leading-in wires and the auxiliary wires welded on over them. Fig. 3 shows the invention applied to a lamp with two filaments for a motorheadlight, the filament 9 being employed for forward illumination and the filament 11 to produce a downwardly directed beam, a screen 12 cutting the light off from the lower part of the reflector. The ends of the filaments 9, 11 are secured to the leading-in wires 7, 7<1>, 7<11> by auxiliary wires 10 welded on as described. The invention is stated to be especially applicable where the leading- in wires contain copper.
Patent GB-789141-A (GB)
Title: Disc ploughs
IPC: A01B15/16
Filed: 1955-09-19
Abstract: 789,141. Agricultural implements. SALOPIAN ENGINEERS, Ltd., and LEE, F. Sept. 18, 1956 [Sept. 19, 1955], No. 26686/55. Class 6(1).  A mounting for a plough disc 18 on a bearing bracket 10 of a plough frame comprises a housing 12 adjustable about a fixed axis in a bearing 11 in the bracket and anti-friction bearings 15, 16 mounted in a bore in the housing and receiving the shaft 17 of the disc, the bore having its axis inclined to the fixed axis about which the housing is adjustable. The housing 12 and bearing 11 are provided with an annular series of holes for receiving bolts 13 which secure the two parts together.
Patent GB-1427226-A (GB)
Title: Acoustic surface wave devices
IPC: H03H9/02
Filed: 1973-06-05
Abstract: 1427226 Surface wave devices MULLARD Ltd 5 June 1973 26729/73 Heading H3U In an acoustic surface wave device, e.g. an I.F. filter, having transducers 2, 3 for respectively launching and receiving a surface wave, the transducer 2 comprises an interdigital electrode array on the surface of a piezoelectric body 1 and is connected in push-pull so that two equal signal components are provided of opposite polarity with respect to a reference potential, while the transducer 3 comprises two such arrays 5, 6 arranged side by side and connected in parallel to a load 19 with one side connected to the reference potential. The arrangement is stated to reduce capacitive signal breakthrough by mutual cancellation. Further improvement may be obtained by providing an earthed strip between the transducers, and the transducer 2 may have two sections connected in series, still operating in push-pull. The device may be used to provide a delay.
Patent GB-1534922-A (GB)
Title: Apparatus for stabilizing a laser beam
IPC: G03F3/08
Filed: 1976-06-28
Abstract: 1534922 Automatic control; controlling light DAINIPPON SCREEN SEIZO KK and USHIO ELECTRIC Inc 28 June 1976 [26 June 1975] 26792/76 Headings G2F and G3N [Also in Division H4]  In image-reproducing apparatus a laser beam 2 is diffracted by an ultrasonic modulator 10 and then split into two beams 5a, 5b one of which produces an image on film 20 and the other of which provides signals which are compared with input image signals to control the intensity of the modulated beam. As shown, after being modulated, beam 2 is split by half-mirror 16, and beam 5a is fed to a photoelectric transducer 21, e.g. a photo-tube the output of which is fed as a negative feedback signal 22 to amplifier 23 where it is compared with image signals 33, the amplifier output modulating a sine wave signal supplied from generator 6 to the ultrasonic vibrator. The comparison circuit may function as a differential amplifier with negative feedback being applied through a resistor 37. An aperture plate 15  ensures that the beam received by half-mirror 16 is the first order diffraction beam.
Patent GB-1516871-A (GB)
Title: Resectoscope and support assembly therefor
IPC: A61B1/12
Filed: 1975-06-24
Abstract: 1516871 Resectoscope AMERICAN CYSTOSCOPE MAKERS INC 24 June 1975 [26 June 1974] 26802/75 Heading A5R A resectoscope includes insulation between its internal and external electrically conductive components whereby between such components there is provided a capacitive coupling of less than 6 picofarads and an ohmic coupling of no less than 25000 ohms. The resectoscope comprises a telescope 10 accommodated in a metallic tube 26 which supports tubes 46 for accommodating electrode arms 69. The tube 26 is housed within a tubular dielectric sheath 16 that is fitted to a dielectric irrigation housing 22 having electrically conductive external valves 98, (114) Fig. 1 (not shown) for introduction and discharge of irrigation fluid via a dielectric bored frustoconical body 28. The body 28 is mounted on metal sleeve 42 and has a disc gasket and seal 106. The telescope and electrode arms pass through the irrigation housing 22 for mounting in a movable dielectric housing 30 that provides electrical connections for the electrode arms. The housing 30 is reciprocable on insulated rails 34 to move the cutting end of the electrode back and forth. The dielectric material may be acetal resin.
Patent GB-602404-A (GB)
Title: Improvements in or relating to graphite-lubricated bearings
IPC: F16C33/16
Filed: 1945-10-15
Abstract: 602,404. Bearings. IGRANIC ELECTRIC CO., Ltd., and RANDALL, C. E. Oct. 15, 1945, No. 26919. [Class 12 (i)] A bearing surface is formed by applying a thin layer of soft and ductile metal to a backing and then covering such layer by a coating of graphite. Thus a layer of copper, cadmium, zinc, lead, silver, or gold is electrodeposited on a deep etched backing so that the final surface is dull and thereafter a coating of graphite is applied by the surface being dipped into a colloidal suspension of graphite in acetone. The graphite is burnished in the direction in which the journal will rotate and the whole finally baked at 100-200‹ C. for not less than one hour.
Patent GB-304165-A (GB)
Title: Improvements in means for converting mechanical, acoustic, or the like impulses intoelectrical impulses
IPC: H04R19/04
Filed: 1927-10-12
Abstract: 304,165. Braendle, E. W., and Billingsley, R. H. Oct. 12, 1927. System modified for use in condenser telephones.-A movable electrode 1 associated electrostatically with two or more fixed electrodes 6, 7, is connected to the grid 2 of a valve in such a way that the grid is free or insulated, as described in Specification. 276,479, [Class 40 (v), Wireless signalling &c.]. Movement of the electrodes 1 in response to mechanical acoustical or like impulses, causes variations to the plate current which may be applied to amplifying or reproducing apparatus.
Patent GB-455400-A (GB)
Title: Improvements in and connected with cycle stands
IPC: B62H3/08
Filed: 1935-10-01
Abstract: 455,400. Cycle stands. ODONI, A. A., Finsbury Court, Finsbury Pavement, London. Oct. 1, 1935, No. 27100. [Class 136 (i)] In a cycle stand of the type comprising one or more inclined troughs 4 each adapted to receive a cycle wheel, the lower ends of the troughs 4, instead of projecting beyond the front member 2 of the supporting framework, are formed with downturned parts 5 which are secured to the member 2 by bolts 6, or by welding &c., the absence of projecting ends avoiding damage to clothing, tyres, &c.
Patent GB-899780-A (GB)
Title: Improvements in or relating to oil additives
IPC: C10M159/12
Filed: 1960-08-04
Abstract: The viscosity index and pour-point of lubricating oil are improved by adding thereto the product obtained by reacting oil-soluble polymers of aliphatic acrylic and/or methacrylic esters first with a phosphorus sulphide and then with ammonia or an organic base. Preferred polymers are those derived by the copolymerization of C12-C18 mixed fatty alcohols methacrylate with one or more nitrogen-containing monomers, e.g. acrylonitrile, acrylamide or methacrylamide; with methyl methacrylate as an optional further comonomer.  The phosphorus sulphide may be replaced in part by other readily decomposed phosphorus compounds, e.g. phosphorus chlorides, phosphorus oxychloride, phosphorus thiochloride, thiophosphoric esters and chlorothiophosphoric esters, or mixtures of such compounds.  The preparation is described of lubricating oil compositions containing the above-described modified polymers together with zinc alkyldithiophosphate.ALSO:Oil-soluble homopolymers or copolymers of C8-C20 esters of acrylic and/or methacrylic acids are reacted first with a phosphorus sulphide and then with ammonia or an organic base. Copolymers specified are: (1) methacrylamide-methyl methacrylate-C12-C18 mixed fatty alcohols methacrylate, (2) acrylonitrileacrylamide-C12-C18 mixed fatty alcohols methacrylate, (3) acrylonitrile-methyl methacrylate-C12-C18 mixed fatty alcohols methacrylate and (4) methacrylamide-acrylonitrile-methyl methacrylate-C12-C18 mixed fatty alcohols methacrylate.  The phosphorus sulphide may be formed in situ by the use of elemental sulphur and phosphorus, and may be replaced in part by other readily decomposed phosphorus compounds, e.g. phosphorus chlorides, phosphorus oxychloride, phosphorus thiochloride, thiophosphoric esters and chlorthiophosphoric esters, or mixtures of such compounds. Organic bases specified are ethanolamines, tert. octylamine or 3-lauryloxypropylamine.
Patent GB-185041-A (GB)
Title: Improvements in or relating to rat guards for ships' mooring ropes
IPC: B63B21/12
Filed: 1921-10-13
Abstract: 185,041. Kirkpatrick, J. Oct. 13, 1921. Guards for preventing access of vermin.-A rat guard for ships' mooring-cables &c., of the kind comprising two metal plates a, a<1> detachably connected, as by a pivot b, and a central tubular member f, composed of two half-tubes, through which the cable passes, is made with the ends of the tube extended and bent over the plates as shown at h and fixed thereto by rivets g, so that chafing of the cable is thereby prevented. The tube is, moreover, lined with rubber, leather, vulcanized fibre, &c. j secured to the tube by rivets k. Stav members m are provided and the plates are corrugated as shown at a<2>.
Patent GB-304177-A (GB)
Title: Improvements in and relating to illuminated direction indicators and signals for motor vehicles and the like
IPC: B60Q1/34
Filed: 1927-10-13
Abstract: 304,177. Powell & Hanmer, Ltd., and Daniel, W. J. Oct. 13, 1927. Road-traffic signals on vehicles.-A four-way switch for selectively lighting signalling lamps in a compartmented casing carried by a road-vehicle comprises a swinging handle u universally mounted, for example in a rubber disc w, and carrying a slkrirg-pressed sliding contact rod y adapted to engage selectively the radially arranged fixed contact pieces t<1> - - t<1111>. By swinging the handle u towards the appropriate sign marked on the cover v, the circuit for the desired signal is completed!.. The lamp casing has front and rear panels bearing conventional signs, and is divided by partitions into three compartments h, j, k, the central compartment i being again divided by an inclined partition m into front and rear compartments with separate lamps, so that the front central compartment may indicate " straight ahead " and the rear one "stop."
Patent GB-636272-A (GB)
Title: Improvements in or relating to fire alarm equipment
IPC: G08B25/12
Filed: 1947-10-10
Abstract: 636,272. Fire alarm systems. STANDARD TELEPHONES & CABLES, Ltd., JACKSON, R., and BATES, E. F. Oct. 10, 1947, No. 27231. [Class'40 (i)] In a signal transmitting mechanism for a fire-alarm street box, the main gear wheel 8 carries two lugs 11, 12, the former normally engaging a spring-biassed pivoted stop-arm 14, and being situated slightly nearer the centre than, and behind, the lug 12, whereby the wheel 8 can only make one revolution on being released ; for even if stop-arm is held up by the pull handle it will engage the lug 12, and on subsequent release the lug 11. The " pullhandle " lever 2 mounted on and outside the box door rocks a lever 3 inside the box which engages an. arm 16 on the stop-lever pinion to release the mechanism. Specification 389,725 is referred to.
Patent GB-714176-A (GB)
Title: Improvements relating to apparatus for separating foreign bodies from root crops
IPC: A01D33/02
Filed: 1951-11-20
Abstract: 714,176. Harvesting root-crops. PACKMAN, P. J. Nov. 17, 1952 [Nov. 20, 1951], No. 27247/51. Class 6 (3). [Also in Group II] An apparatus for the separation of root crops, e.g. potatoes, from stones and clods consists of a harvesting machine as disclosed in Specification 584,502 with separating means (see also Group II) comprising an endless conveyer 24 canted to the horizontal, and provided with resilientlytipped studs 27 spaced apart sufficiently to permit stones and trash to fall between them but allowing potatoes to roll over their tops. The potatoes are dug by a share 15 and passed to the rotating riddle 13 which partially separates the foreign materials and delivers the remainder to an elevator 17 which discharges via a ramp 22 on to the separator 23, the potatoes passing thereover into a shoot 31 and thence to a bagging elevator, while the trash and stones are discharged laterally.