baber/WOPTO huggingface dataset:
Patent GB-842631-A (GB)
Title: Improvements relating to devices for the recognition of printed characters
Inventor: SCARROTT GORDON GEORGE
IPC: G06V10/88
Filed: 1956-12-11
Abstract: 842,631. Photo-electric character recognition. FERRANTI Ltd. Dec. 4, 1957 [Dec. 11, 1956], No. 37760/56. Class 40(3). [Also in Group XIX]  A device for recognizing printed characters 15 having dark and light areas has an array of master characters 11, optical means for superimposing upon each of the master characters an image of a character to be recognized, photocells 18, 19 deriving electric signals dependent on the extents of registration of the dark and light areas of the character with corresponding areas of the master and means operable by these signals to detect a match and produce an output representing the character. The master characters are arranged on a rotating disc 10, each being of opaque reflecting material mounted on a transparent window. The document 14 is moved steadily in the direction shown and each character in turn is projected by lens 17 on to that part of the disc where the master characters pass in succession. When the projected character matches the master, all light is excluded from the opaque reflecting parts so that photo-cell 18 has a zero response and photo-cell 19, receiving light transmitted through the transparent parts of the window from the light areas of the character 15, gives a maximum signal, equal to that of photo-cell 20 receiving light passing directly from lamp 16 through the transparent window. Photo-cell 21 receives light from lamp 16 passing through a window carrying a coded equivalent of the corresponding master character. When photo-cell 18 gives a zero signal and those 19 and 20 are equal to each other, the discriminator produces a signal opening gate 22 and allowing the coded representation of the character to pass from photo-cell 21 to output line 24. In a modification a rotatable glass block is interposed between the character 15 and lens 17 which causes a substantially stationary image of the character to fall on to the disc 10. Otherwise a series of lenses 17 may be mounted in a rotating disc to produce the same effect. The document can then be moved at a greater speed and still leave time to compare each character with each master. The transparency of the windows carrying the master characters may be graded so that those parts are most transparent in which the character differs most from other characters (e.g. the upper parts of "3" and "5") so that the signal is mainly derived from the most distinctive features.
Patent GB-622266-A (GB)
Title: Improvements in or relating to the production of biguanide compounds
IPC: C07C279/26
Filed: 1946-12-23
Abstract: N1-p-Chlorophenyl-N5-isopropyl-biguanide is prepared by condensing p-chlorophenyl cyanamide with isopropyl guanidine in a non-hydroxylic solvent having a boiling point of at least 110 DEG  C. (e.g. anisole, xylene, toluene or di-n-butyl ether) at about the boiling point of the solvent.  In examples, isopropyl guanidine is refluxed with p-chlorophenyl cyanamide in (1) anisole and (2) toluene. Specification 607,720 is referred to.  p-Chlorophenyl cyanamide is prepared from p-chloraniline and cyanogen chloride.
Patent GB-919431-A (GB)
Title: Portable device for installing and removing end fittings on flexible hose
IPC: B25B27/10
Filed: 1961-10-23
Abstract: 919,431. Jointing by forging; breaking. TITEFLEX Inc. Oct. 23, 1961 [Dec. 23, 1960], No. 37858/61. Class 83 (4). [Also in Group XXVIII] A portable device for securing a pipe fitting S to a flexible hose h or detaching it therefrom, comprises a base-plate 10 carrying a die set 32 and connected to a parallel top plate 12 by posts 14 on which slide a pressure plate 18 carrying a member 38 for supporting the workpiece, both the top and pressure plates having aligned slots 34, Fig. 6 (not shown), providing clearance for the workpiece. The latter may be an elbow fitting with a sleeve S which is pushed into and over the hose h passing through the die set 32. With the fitting supported in the member 38, pressure is applied to plate 18, by a pair of hydraulic motors 20, whereby the edge of the sleeve S is swaged on to the hose. The die set is mounted in an adaptor ring 30 which is omitted when larger dies are used. A hand pump 28, Fig. 1 (not shown), actuates both hydraulic motors. In another embodiment, Fig. 8, the device uses a splitting die 48 for stripping an elbow from the hose h.
Patent GB-1136966-A (GB)
Title: Improvements in or relating to electric transformers
Inventor: LEARNEY LEWIS PHILIP
IPC: H01F19/04
Filed: 1966-08-25
Abstract: 1,136,966. Transformers. COMMUNICATIONS PATENTS Ltd. 25 Aug., 1966, No. 38112/66. Addition to 1,005,425. Heading H1T. The high frequency transformer mounted in a transmission line disclosed in the Specification 1,105,425, is modified in that the single turn primary winding is sub-divided into eight equally spaced copper strips 31-38 which are soldered alternately between the upper plate 11 and the central plate 12 and between the lower plate 13 and the central plate 12 so that the central plate 12 is connected to the mid-point of the winding to balance the line. The plate 12 is formed of two sheets 12<SP>1</SP>, 12<SP>11</SP> rivetted or soldered together so that uniform spacing of the plates may be preserved as shown and the diameter of the hole in plate 12 is a little less than the diameters of each of the holes in the outer plates for easy connecting. At least one secondary winding consisting of multi-turn coils of enamelled copper wire is wound over the turns of the primary winding, separated from it by sheets of P.T.F.E., passing through the central hole of the core and through insulated holes 17, 20, 21 &o. provided in the primary turns and the plates. A connecting loop (79), (Fig. 3, not shown), and a similar loop (not shown) may connect the multi-turn coils in parallel with each other. The primary winding may be formed from a rectangular metal sheet and consist of limbs, having greater width near their extremities, attached to a marginal strip suitably apertured and slotted (Fig. 2, not shown). There may be an extra winding to provide a measuring or feedback potential difference.
Patent GB-327122-A (GB)
Title: Improvements in and relating to apparatus for generating actinic rays
IPC: A61N5/06
Filed: 1928-12-24
Abstract: 327,122. Dangerfield, V. H. M. A. Dec. 24, 1928. Addition to 275,596. Drawings to Specification. Electric appliances; radiations, treating diseases with.-In apparatus for generating actinic rays according to the parent Specification a plurality of oscillation generating units are employed each adapted to pass the oscillations in succession through a vacuum tube. The generating units comprise condenser discharge arrangements and are transformer coupled to the piezoelectric quartz actinic ray generating tube of the type described in the parent Specification.
Patent GB-917760-A (GB)
Title: Fungicidal compositions
IPC: A01N55/02
Filed: 1961-10-25
Abstract: Fungicidal compositions comprise methyl or ethyl arsine sulphide together with tetramethyl thiuram disulphide, quinone-oxime-benzoyl hydrazone, p - dimethyl - amino - phenyldiazosulphonic acid or a metallic salt or derivative thereof or a known organo mercury fungicide e.g. phenyl mercuric chloride.  Specified derivatives of p-dimethyl-amino-phenyldiazosulphonic acid are p-dimethylamino-phenyl-hydrazine - sulphonic acid, p - amino - benzeneazo - sulphonic acid, p - amino - phenylhydrazine-sulphonic acid or p-acetylamino-azobenzene sulphonic acid or metallic salts thereof.  The compositions may be applied together with inert carrier materials, dressing agents, other fungicides, insecticides, nematocides, fertilizers or soil structure improvement agents in the form of granulates, powders, pastes, suspensions, emulsions or solutions.
Patent GB-1374905-A (GB)
Title: Seat adjustment arrangements of motor vehicles
IPC: B60N2/08
Filed: 1972-08-16
Abstract: 1374905 Safety vehicle seats DAIMLERBENZ AG 16 Aug 1972 [17 Aug 1971] 38284/72 Heading A4J A vehicle seat is mounted in a vehicle so that in a crash, if the occupant is not wearing a seat belt, the seat slides forwardly to prevent the occupant from falling between the seat and the instrument panel and, if the occupant is wearing a seat belt, the seat is held against forward movement. The seat is provided with a two part seat slide 4, 8 the lower part 4 having teeth which mesh with the teeth of a lever 6 pivotally connected to the upper part 8 to which the seat belt anchorage 9, 10, 11, 12 is attached, the two sets of teeth being shaped to ride over one another when a predetermined loading on the slide but not the anchorage is exceeded. The seat belt anchorage comprises 2 levers 9, 11 pivotally inter-connected at 12, lever 9 being pivotally connected intermediate its ends to the upper part of the seat slide so that when a predetermined force is applied to the anchorage by an occupant wearing the seat belt the end 17 of lever 9 remote from the pivot 12 presses on the actuating lever to prevent disengagement of the two sets of teeth.
Patent GB-1530884-A (GB)
Title: High voltage aluminium electrolytic capacitors
IPC: H01G9/022
Filed: 1977-09-14
Abstract: 1530884 Electrolytic capacitors SEIMENS AG 14 Sept 1977 [17 Sept 1976] 38297/77 Heading H1M An aluminium electrolytic capacitor suitable for use with a flash unit includes as electrolyte a composition containing per kilogram: 9À0 to 11À0 mol. ethylene glycol; 2À0 to 5À0 mol. boric acid; 0À1 to 0À5 mol. adipic acid; 0À9 to 1À5 mol. ammonia; 0À05 to 0À15 mol. phosphoric acid and 4À0 to 6À0 mol. water.
Patent GB-1508199-A (GB)
Title: Heat exchangers
IPC: F24S10/70
Filed: 1975-10-08
Abstract: 1508199 Solar heat exchangers DRAKE & FLETCHER Ltd 8 Oct 1976 [18 Sept 1975] 38369/75 Heading F4U A solar heat exchanger, preferably in the form of a brass tube 2 coaxially surrounded by a glass tube 3, is closed by end caps 6 having axial bores 16 extending therethrough. The bores 16 are closed by rubber flaps 17 to prevent ingress of ambient air, but to allow egress of gas from the space 5 when the gas pressure therein exceeds a predetermined threshold value. The outer tube may be formed in sections, connected together by connectors 13 having a plurality of axially-extending circumferentially spaced bores 15 extending therethrough.
Patent GB-1375936-A (GB)
Title: Process for producing conjugated diene type polymer
IPC: C08G18/69
Filed: 1972-08-17
Abstract: 1375936 Derivatives of living polymers MITSUBISHI CHEMICAL INDUSTRIES Ltd 17 Aug 1972 [18 Aug 1971 9 Dec 1971 23 Dec 1971] 38502/72 Headings C3P and C3B Living polymers, prepared by polymerizing a conjugated diene or a mixture of such a diene with a vinyl or vinylidene monomer of formula CH 2  = C(R 1 R 2 ) where R 1  is H or alkyl and R 2  is an aryl pyridyl group in the presence of an alkali metal or an organo-alkli metal compound, are reacted with a halogenoalkylene oxide in a proportion of 0À5-2 moles per mole of polymer. The products contain pendant -OM groups which are readily converted to -OH groups by treatment with a protonic acid, e.g. HCl in methanol. In the examples, living polybutadiene or butadiene/styrene copolymer (Ex. 6) are reacted with epichlorohydrin and the products acidified to give pendant -OH groups in varying number. The -OH group-containing products may be subjected to further reactions, of which the following are exemplified: curing with either toluene diisocyanate or a polyaryl polyisocyanate (Examples 1-13), optionally in admixture with a polyhydroxypolyester (Examples 7-11), polytetramethylene ether glycol (Example 12 or polypropylene ether glycol (Example 13) and with carbon black and dibutyl tin dilaurate; reaction with phthalic (Example 14) or succinic (Example 15) anhydrides to esterify the OH groups and produce pendant carboxyl groups which may be cured by reaction with an epichlorohydrin/bisphenol A epoxy compound (Example 14); and reaction with maleic anhydride (Examples 16, 18, 20), methyl methacrylate (Example 17) or acrylic chloride (Examples 19, 21) to introduce additional double bonds, the products optionally being further reacted with styrene in the presence of benzoyl peroxide (Examples 16-19) or methyl ethyl ketone peroxide/cobalt naphthenate (Example 20).
Patent GB-1142495-A (GB)
Title: Improvements in or relating to spiral launders
Inventor: STOCKS LEON
IPC: C22B9/04
Filed: 1966-08-30
Abstract: 1,142,495. Distilling metals. IMPERIAL SMELTING CORP. (N.S.C.) Ltd. Aug.25, 1967 [Aug.30, 1966], No.38668/66. Heading C7D. A process for distilling a metal from a molten mixture of metals by flowing the melt down a spiral channel, having upwardly projecting ridges in the base thereof which are covered by the melt and serve to create turbulence therein and to reduce the rate of flow thereof down the channel to give a smooth surface thereto and to reduce splashing, the channel being located in a vacuum vessel. The apparatus comprises a spiral channel the outer edge of which is formed by or attached to the cylindrical or frusto-conical backing plate which thus supports the spiral in the vacuum chamber.
Patent GB-1155573-A (GB)
Title: Alarm Clocks
IPC: G04B19/30
Filed: 1966-08-30
Abstract: 1,155,573. Lamps. GENERAL TIME CORP. 30 Aug., 1966 [21 Feb., 1966], No. 38680/66. Heading F4R. [Also in Division G3] Vertical pressure on the housing 10 of an alarm clock (see Division G3) switches on a lamp 75 to illuminate the clock dial and shut off the alarm. The manual pressure applied to the housing moves a tray 70, biased outwardly by springs 101, 102, inwardly with respect to a housing 60. A blade 111 of a switch 110 touches a contact (112), Fig. 5 (not shown), to connect the lamp to a battery 80. In a modification, a spring-loaded plunger extends from the base of the clock so that the alarm is switched off and the dial illuminated by lifting the clock away from the surface on which it stands.
Patent GB-884433-A (GB)
Title: Improvements relating in or to vessels for flower growing plants, particularly for pot plants
IPC: A01G27/04
Filed: 1959-11-16
Abstract: 884,433. Flower pots. KLAROWICZ, W. Nov. 16, 1959 [Nov. 15, 1958], No. 38811/59. Glass 6(2). A plant pot comprises an earth container 1 integral with a water container 2 and provided with openings 3 near its bottom reaching above the upper rim of the water container and closed either from the inner or outer side by a porous insert in the shape of a ring In a modification, the container 2 may be in the form of an open bowl.
Patent GB-848548-A (GB)
Title: Starting circuit for electric discharge lamps
IPC: H05B41/232
Filed: 1956-12-20
Abstract: 848,548. Supply systems for discharge lamps. LUMALAMPEN A.B. Dec. 20, 1956 [Dec. 21, 1955], No. 38899/56. Class 38 (4). In a resonant circuit for operating a hot cathode discharge lamp, a transformer 4-6 has its windings closely coupled so that resistance /temperature changes of the heaters 7, 8 cause like changes in potential across the tube 1, thus limiting the voltage to below the striking value when the heaters are cold. A choke 3, capacitor 2, and transformer primary winding 4 are connected in series across an A.C. supply. The secondary windings 5-6 are directly connected to the heaters 7, 8, also across the capacitortransformer combination 2, 4. The parameters of the circuit are arranged, so that initially the voltage across the tube is about 260 volts, i.e. below the striking value, rising to 300 volts with the heaters hot, thus igniting the tube, this voltage then dropping owing to the shunting effect of the discharge current. Constructional details of the components are given, also circuits for series and parallel twin tube circuits.
Patent GB-375832-A (GB)
Title: Improvements in stop motion mechanism for drawing frames used in the treatment of fibrous substances
IPC: D01H13/18
Filed: 1930-12-30
Abstract: 375,832. Electric stop-motions for drawing frames. FAIRBAIRN LAWSON COMBE BARBOUR, Ltd., Wellington Foundry, Wellington Street, Leeds, and PARKER, A. F., 21, Morritt Drive, Halton, near Leeds. Dec. 30, 1930, No. 39139. [Class 120 (ii).] In an electric stop-motion for drawing frames and the like detector devices are actuated on breakage, failure, or undue slackness of the sliver and set in motion a body which under gravity then moves further to complete an electric circuit and thereby to arrest the machine by stop-mechanism which thereafter continues to act so as to break the circuit. The body may take the form of a ball 14, Fig. 8, or a member 14w, Fig. 9, pivoted on its point s. Each detector 2, Fig. 3, engages a sliver 3 and is carried by a lever arm 2a pivoted at 2b, the upper arm 2d of the lever 2a supporting a metal sleeve 6 insulated by a sleeve 8. The metal ball 14 is mounted inside the sleeve 6 which is connected by a wire 12 to a bar 13 running the length of the machine, an insulated end contact 9 being connected by a wire 10 to a second bar 11. The bar 13 is connected to the negative main while the bar 11 is connected by a wire 10a to an insulated plate 27, Fig. 5, a wire 10b connecting a second plate 27a to the electromagnet 15 which is also connected to the positive main by wires 12a, 12b. A runner 32 on a lever 30 is pressed into contact with the insulated plates 27, 27a. The armature 15a supports a pivoted lever 126 carrying a bowl f normally engaged in a notch d formed in a bar 25b connected to the starting lever. On breakage or failure of the sliver the weight of the parts carried by the arm 2d causes the detector to rotate to the dotted position, Fig. 8, the ball 14 engaging the contact 9 and completing the circuit of the electromagnet 15 which raises its armature 15a and removes the bowl f from the notch d, the bar 25b being then moved to the left to stop the machine. The lever 30 which is pivoted to the bar 25b moves therewith carrying the runner 32 off the plates 27, 27a so that the circuit through the solenoid 15 cannot be established while the belt is on the loose pulley. The stop-motion is also actu. ated on undue accumulation of fibres or lapping of the fibres round the rollers.
Patent GB-841596-A (GB)
Title: Improvements in or relating to spring-link assemblies
Inventor: BOTT LEONARD
IPC: A44C5/06
Filed: 1957-12-17
Abstract: 841,596. Bracelets. MONTAL WATCH FITTINGS Ltd. Aug. 29, 1958 [Dec. 17, 1957], No. 39278/57. Class 43 [Also in Group XXV] An expansible bracelet comprises pairs of links 13, 14 having a central pivot 15 containing a coiled spring 16 which urges the links to retracted position in contact, one end of the link 14 having as a pivot a rivet 22 which engages in a hole 20 in an adjacent link 13 and the other end of the link 14 having a headed pin 21 which engages in a keyhole slot 19 in a link 13 and is retained therein by a latch having a spring jaw 25 engaging the pivot 15 and a slot 27 engaging the pin 21. The latch has a spring link 30 at one side of the slot produced by a slot 28 and hole 29 below the link. A lug 31 on the latch is provided for operating the latch. A bracelet may comprise a series of detachable link assemblies. A link may have two keyhole slots and two latches on the same or separate pivots on one or both links.
Patent GB-1473399-A (GB)
Title: Apparatus and method for generating heat
IPC: B01D53/50
Filed: 1974-09-09
Abstract: 1473399 Generating heat; boilers FOSTER WHEELER CORP 9 Sept 1974 [28 Sept 1973] 39307/74 Headings F4A and F4B Apparatus for generating heat comprises a housing 10 with an enclosure 12 divided by distribution plate 20 into a plurality of identical compartments 22 and a lowermost compartment 24. Particulate fuel mixed with an agent for reacting with sulphur is injected into the compartments 22 via lines 26 and is fluidized by air that passes from the inlet 30 through the dampers 32 and distribution plates 20. Combustion takes place at a temperature sufficient for the reactor agent, which may be limestone or calcium oxide, to react with the sulphur in the fuel to form compounds such as calcium sulphate &c., and these are transferred via pipes 54 to the compartment 24. Combustion gases from compartments 22 with entrained fuel particles and reactor agent discharge to the dust collector 42 which removes the fines, and these pass to a dust hopper 44 and are then forced into the compartment 24 by the injector 46. In compartment 24 the combustion is at a temperature sufficient to restore the reactor agent to its original state, and thus release sulphur dioxide which passes to the duct 50 for further processing. Restored reactor agent is returned via a pipe 60 to the compartments 22. The enclosure 12 may be formed by finned heat exchange tubes, and tube bundles 52 may be disposed in each compartment 22.
Patent GB-871481-A (GB)
Title: Improvements in the recovery of the antibiotic nitromycin from a fermentation broth
Filed: 1959-11-19
Abstract: A process for the recovery of the antibiotic mitomycin from a mitomycin-containing whole broth e.g. one in which Streptomycin caespitosus has been cultivated, wherein a mitase inhibitor as hereinafter defined is added to the whole broth at the completion of the fermentation cycle whereby the destructive effect of mitase on mitomycin is substantially eliminated and the mitomycin is extracted from the broth with a solvent such as butanol.  The mitase inhibitors are chloroform, toluene, phenol, mercuric chloride or an alkali metal alkyl sulphate especially one in which the alkyl radical has from 8 to 18 carbon atoms e.g. sodium lauryl sulphate.  Based on the whole broth there is used at least 1% of chloroform or toluene, 0,025% mercuric chloride or 0,001, and preferably 0,1% of sodium lauryl sulphate, and in general 0,1 to 0,5% of the preferred class of inhibitor is used. Specification 830,874 is referred to.
Patent GB-958417-A (GB)
Title: Improvements in or relating to cap closures for containers
Inventor: BAYLISS MICHAEL JOHN KEITH
IPC: B65D51/16
Filed: 1961-11-08
Abstract: 958,417. Cap-Closures. METAL BOX CO. Ltd. June 5, 1962 [Nov. 8, 1961], No. 40071/61. Heading B8T. A cap closure, e.g. of polyethylene for a bottle or like container comprises an annular stopper 4 and skirt 1 depending from a crown 2, which is of such a thickness that it flexes away from the rim 7 of the container when the gaseous pressure inside the container reaches a predetermined value. The stopper 4 has converging sides 5 which engage the interior of the container neck 3 to seal the container except when the pressure is so great that the crown 2 flexes, and the gas escapes through an opening, Fig. 4 (not shown). Pads 6 are provided on the interior of the crown 2 to provide spaces to facilitate venting of the container.