baber/WOPTO huggingface dataset:
Patent GB-1374846-A (GB)
Title: Method of forming and developing an electrostatic latent image
IPC: G03G13/08
Filed: 1972-04-20
Abstract: 1374846 Electrostatic printing FUJI SHASHIN KOKI K K 20 April 1972 [20 April 1971] 18464/72 Heading G2H In order to clear all residual toner from the non-image areas of a developed plate before the application of the transfer step the developed plate is flooded with,illumination and then subjected to a second development step. The photo-flooding step destroys all the residual charge on the non-image areas but because of the masking effect of the toner arising from the first development step the charge on the image areas remains intact. Consequently, the residual toner is removed from the non-image areas as a direct result of the second development step.
Patent GB-1392362-A (GB)
Title: Recording materials
IPC: G03C1/675
Filed: 1972-04-20
Abstract: 1392362 Photo-sensitive materials containing organic halogene FUJI PHOTO FILM CO Ltd 20 April 1972 [21 April 1971] 18468/72 Heading G2C A photo-sensitive material comprises a support coated with an N-vinylamino and an organic halogen which generates free radicals on exposure as fine particles dispersed using a liquid oleolphilic compound boiling above 170‹C which encapsulates the N-vinlyamino and the organic halogen in a hydrophilic polymeric binder. Specified compounds are ethylene glycol, liquid paraffin, chlorinated biphenyls and esters of phosphoric, alipic, sebasic, azeleic, citric, glycollic or ricinoleic acid, e.g. dioctyl sebacate. The material is imagewise exposed to ultraviolet and (i) uniformly exposed to light above 580 nm and then uniformly exposed to ultraviolet to produce a positive coloured image or (ii) uniformly exposed to ultra-violet to give a positive coloured image. If the liquid compound is omitted, the image changes colour and fades on standing. Specified hydrophilic binders are gelatine, casein, starch, gum arabic, polyvinyl alcohol or pyrrolidone or carboxymethyl cellulose.
Patent GB-237292-A (GB)
Title: Process of effecting agglomerations in paper pulp and other suspensions and mixtures containing fibrous matter
IPC: D21J3/00
Filed: 1925-07-21
Abstract: 237,292. Sveen, K. July 21, 1924, [Convention date]. Pulp, adding special substances to; waste products, treatment and utilization of; weighting.- Paper containing a percentage of filler larger than usual is produced with better retention of the fillers with better sizing by incorporating with the pulp an auxiliary substance which acts with the mordant to hold the filler and other constituents in the pulp of the paper. Auxiliary substances suitable for the process are those which form colloids with the mordants such as soap solutions especially of the fatty acids, rubber emulsion, gelatine, joiners' glue, glue from leather waste, fish glue, albuminous substances such as casein, and solutions of inorganic substances such as alkalies, ammonia, water glass, lime, calcium salts &c. As filler is mentioned china clay, mordanted with aluminium sulphate, and the best effect is produced when the filler &c. is added immediately before the pulp is supplied to the wire of the paper machine, preferably in the mixer, knot strainer or sand collector. Where glue solution is used, the solution is preferably stored at an ordinary or lower temperature for some days, and its effect may be increased by the addition thereto of lignin substances such as waste sulphite liquor. In the treatment of " save-all " water, the settling of the fibres therein can be accelerated by adding loading material such as china clay, or mordant such as aluminium sulphate, and an auxiliary substance.
Patent GB-589026-A (GB)
Title: Improvements in electrolytic cells for the production of magnesium and chlorine frommagnesium chloride fusions
IPC: C25C3/04
Filed: 1943-11-08
Abstract: 589,026. Fused-electrolyte cells. ABBEY, A. (Consolidated Mining & Smelting Co. of Canada, Ltd.). Nov. 8, 1943; No. 18564. [Class 41] An electrolytic cell suitable for extracting metallic magnesium and chlorine gas from fusions containing magnesium chloride comprises an electrolytic chamber 27 lying between a tubular cathode 9 of square or circular cross-section and a concentric anode plate or rod 22, which chamber opens into a gas-collecting chamber 15 above a steel plate 3 and preferably separated therefrom by a refractory floor 16, the surface 17 of which slopes downwardly and outwardly and inclines, as shown at 18 towards an outlet port 19. In operation, fused anhydrous salt is fed into the cell at the point 7 until it reaches the level 26, and when the current is turned on, the gas produced promotes circulation of the electrolytes and products thereof into the chamber 15, from which the metal and electrolyte escape by port 19. The metal further separates from the electrolyte in the lateral space 7 from which it can be recovered, whereas the electrolyte again circulates to the electrolysis chamber. A lip 25 forms a gas-trap to retain chlorine in chamber 15, and a baffle 31 guides the emerging products into the well 7. In a modification, Figs. 3, 5 and 8, four electrolysis chambers formed by cathodes 47 and anodes 49 are located in a common receptacle 42 and open into a common gas-collecting chamber 45 from which metal and electrolyte pass through a U- channel 52 and over a lip 54 into the metalcollecting well 44. Electrolyte is returned from thence through a passage 56, 57 and over slot 58 into a feed chamber 43 into which make-up salt is supplied and fused by A.C. electrodes 65, 66. The steel plate 46 to which the cathodes 47 are welded and which forms the floor of the collecting chamber 45, is formed with a terminal 62. Dimensions of a specific example of cell are given, together with figures of performance. Specification 573,984 is referred to.
Patent GB-807805-A (GB)
Title: Improvements in or relating to coating apparatus
Inventor: KOSTER ALFRED HERBERT
IPC: B05C11/06
Filed: 1956-06-15
Abstract: 807,805. Coating webs. ILFORD Ltd. April 23, 1957 [June 15, 1956], No. 18619/56. Class 140. Apparatus for applying a liquid coating to a moving support comprises a roller 4 round which the support 3 is caused to pass, a trough 2 for coating liquid so placed in relation to said roller that the support, as it passes round said roller makes surface contact with the liquid in said trough and therefore picks up liquid from said trough, an air blade 5 located at a distance following the coating point which applies a jet of air at substantially right angles to the support which is moving substantially vertically, and means for diverting away from the support the excess liquid removed by the air blade. The diverting means may be a wheel 6 (Fig. 1) rotating in the opposite direction to the main roller 4 or a scoop (Fig. 2) consisting of an arcuate plate 8 and an auxiliary trough 9 having therein means (not shown) for returning liquid to the trough. The liquid may be diverted to a separate trough and its viscosity and temperature adjusted before return to the main trough. The air blade may act on the support at a distance above the main roller in which case an additional support roller is supplied opposite the air blade. The apparatus may be used for coating film base with photographic gelatino-silver halide emulsion.
Patent GB-388736-A (GB)
Title: Improvements in or connected with models of human figures, animals and the like
IPC: A63H9/00
Filed: 1931-06-29
Abstract: 388,736. Advertising. POLLOCK, M. B., 92, Madeley Road, London. June 29, 1931, No. 18733. [Class 3 (i).] In a model figure for use as an advertising toy or for display purposes and of the kind in which a hollow rigid model 1 of the head of the figure is provided with features moulded in a covering 2 of rubber or similar flexible material that is distortable to change the expression or appearance of the face by cords, bands or strings 3 passing through apertures in the rigid model, the cords or the like are attached to the covering by inserting and securing them in the flexible material of the covering. The invention is applicable to parts other than the head of the figure. The cords or the like are preferably formed of such inextensible material as webbing or catgut and are acted upon by manually or motor-driven cams 7 to distort the features. Pins 9 or other projections extend from the rigid model into the flexible covering to anchor those parts that are not required to move. In a modification, the cams act upon levers connected to the cords. In addition to the cords, the flexible covering may be manipulated by hooks, rods, pins or wedges, manually or mechanically operated from within the hollow model.
Patent GB-118216-A (GB)
Title: Improvements relating to Photograph and like Frames.
Inventor: POOLE MAY
IPC: A47G1/06
Filed: 1917-12-17
Abstract: 118,216. Poole, M. Dec. 17, 1917. Picture and like frames. - Relates to frames fitted with holders for cut flowers. According to the inven. tion, the water receptacle C is enclosed in a recess cut in the frame A and is shut in by the removable back piece D.
Patent GB-848637-A (GB)
Title: A vinyl-substituted cyclohexane and the production of the same
IPC: C07C5/29
Filed: 1959-06-02
Abstract: The Specification comprises 1, 2, 4-trivinylcyclohexane which is prepared by the isomerisation of cyclododecatri-1, 5, 9-ene in the vapour phase at 400 DEG -600 DEG  C. over a palladium catalyst.  The charge may be diluted 0,1-2 times with an inert gas, e.g. nitrogen or carbon dioxide.  The catalyst may contain 0,1-20% of palladium supported on active carbon or silica gel.  Residence times of 0,1-100 seconds are used.  Normal, slightly increased or reduced pressure may be used.  Specification 555,180 is referred to.
Patent GB-187635-A (GB)
Abstract: 187,635. Wood, V. C., and Moring, C. P. Nov. 19, 1921. Adding and subtracting apparatus. - The numeral wheels 7 of the totalizing-counter are directly actuated by gear trains 11, the first wheel of each of which is secured to a spring-controlled spindle 12 provided with a pointer movable over a numbered arc. The numeral wheels, mounted on pivots 2, are driven through a one-way ratchet and are provided with holes in their under surfaces to be engaged by spring-supported detent balls 20. Transfer-mechanism.-In the arrangement shown in Fig. 1, the pivots 2 for the numeral wheels are disposed at progressively smaller intervals so that the correspondingly dimensioned transfer arms 6 may effect transfer upwards but are not able to engage the next lower wheel. In another arrangement, the wheels are at equal distances apart and transfer is performed by a pawl pivoted on the lower face of the numeral wheel and forced upwards at transfer by means of a fixed quadrantal cam.
Patent GB-782036-A (GB)
Title: Manufacture of highly polymeric polymethylene terephthalates
Inventor: MUNRO NEIL
IPC: C08G63/83
Filed: 1955-06-29
Abstract: Polymethylene terephthalates free from polyglycol units are made by esterifying terephthalic acid with a glycol of formula HO (CH2)nOH, where n = 2-10 in presence of an alkali metal salt of terephthalic acid and polycondensing the resulting ester. The salt may be formed in situ by adding an alkali metal hydroxide to the reaction mixture. The initial esterification is effected at atmospheric or super-atmospheric pressure and the final polycondensation at reduced pressure (e.g. 0.5 mm. of Hg.). Specification 578,079, [Group IV], is referred to.
Patent GB-821024-A (GB)
Title: Improvements in protective cut-outs for electric immersion heaters
IPC: H01H37/52
Filed: 1955-06-29
Abstract: 821,024. Thermal switches. THOMPSON & CO. (SUNBURY) Ltd., and BENFORD, P. R. May, 24, 1956 [June 29, 1955], No. 18822/55. Class 38 (5). A cut-out for an immersion heater comprises contacts 10, 14 enclosed in a easing 11 attached to a metal base 2 carrying the heater element 1, the contacts being operated by a slidable plunger 19 extending through casing 11 into base 2 and controlled by a bimetallic catch device 24 mounted in the base. The device 24 is U-shaped and has apertures 26 normally engaged by the head 27 of a pin 23 attached to a spring-biased lever 21 bearing on the end of the end of the plunger 19. When the device 24 is overheated, its arms move outwards to release the pin 23 and plunger 19 is forced downwards to push spring contacts 14 away from the fixed contacts 10. The cut-out is reset by pushing the plunger upwards.
Patent GB-1019876-A (GB)
Title: Apparatus for facilitating the changing of aero engines
Inventor: METZRATH HEINRICH
IPC: B64F5/00
Filed: 1963-05-14
Abstract: 1,019,876. Load handling machines. HENSCHEL FLUGZEUGWERKE A.G. May 14, 1963 No. 18979/63. Heading B8H. [Also in Division B7] Apparatus for use in replacing aircraft engines comprises a container for housing an engine and provided with engine-handling equipment and formed with two parts la, 1b connected to supporting frames 2, 3 and interconnected by screws 6, Fig. 1 (not shown). In operation, the container, housing a replacement engine, is transported, for example by helicopter, to the disabled aircraft. It is then lowered on to legs 5 by means of screw spindles in supporting trunnions 8, Fig. 1 (not shown), and castors 4 are transferred from the frame 3 to the frame 2. The connecting screws 6 of container parts la, lb are removed and the part la is pivoted down about the pivot 7b, Fig. 2. The supporting frame 2 is then pivoted down about the pivot 7a, Fig. 3 (not shown), and pedestal bearings 10 and hydraulic struts 9 are mounted on the frame 2 which is then moved into position below the nose of the disabled aircraft. After fixing supporting yokes 13, Fig. 4 (not shown), on the exhaust flange of the cylinders and connecting these yokes to the struts 9 and slackening the engine fixing bolts 15, the faulty engine is deposited on the frame 2, which is then towed away and deposited on its legs 5. The castors 4 are transferred to the frame 2 carrying the replacement engine which is then installed in the aircraft.
Patent GB-595293-A (GB)
Title: Improvements in or relating to fixed ammunition for quick-firing guns
IPC: F41A3/10
Filed: 1944-12-16
Abstract: 595,293. Ammunition cartridges. BURNEY, SIR C. D. Dec. 16, 1944, No. 18991/47. Divided out of 595,265. [Class 9 (i)] Fixed ammunition for breech-loaded quickfiring guns comprises a projectile carrying a driving band and having securely attached to its base, as by a screw connection, a cartridge case 2 having a thin perforated wall and having no breech-locating rim or flange at its rear end. The cartridge case may have an imperforate inner wall which protects the propellent charge and which is made of waterproof paper, metal foil or other material which becomes consumed or disintegratos on firing. To allow for irregularities in the ramming home of the projectile in the breech-chamber, the percussion cap 4 is spring mounted so that it may adjust itself correctly in relation to the ignition needle or striker. Specifications 586,749 and 595,265 are referred to.
Patent GB-848146-A (GB)
Title: Improvements relating to bi-stable circuits
Inventor: TODMAN JOHN STANLEY
IPC: H03K3/45
Filed: 1958-06-13
Abstract: 848,146. Circuits employing bi-stable magnetic elements. SIEMENS EDISON SWAN Ltd. May 21, 1959 [June 13, 1958], No. 19014/58. Class 40 (9). [Also in Group XIX] A scale of two device consists of a square loop core F in combination with a transistor T such that an input to winding iw to switch the core is also applied over capacitor C to the transistor T which would conduct in response were it not cut off by the voltage induced in a winding hw. Subsequent application of an input of the same polarity finds the core F switched and consequently, over capacitor C, switches on transistor T which drives with positive feedback from a winding rw in the load circuit for as long as it takes the core to turn over. Connection of such devices in cascade produces a binary counter. Inputs may be quantized by use of triggered transistor blocking oscillators.
Patent GB-1210825-A (GB)
Title: Reversible positive-displacement fluid pump or motor
IPC: F04C15/00
Filed: 1967-11-20
Abstract: 1,210,825. Rotary positive-displacement pumps and motors. BORG WARNER CORP. Nov.20, 1967 [Dec.5, 1966], No.19113/70. Divided out of 1,210,824. Heading F1F. The subject-matter of this Specification is the same as that described in Specification 1,210,824, saving that Figs.17 to 24 and the relevant text are omitted and the claims are concerned with a reversible pump, or motor, comprising a wear plate between inter-engaging rotatable working-members and an end wall of a cavity containing said members, said plate having groove with a one-piece seal therein, which is urged against the end wall and defines a fluid channel in the groove.
Patent GB-516542-A (GB)
Title: Manufacture of cyclopentanopolyhydrophenanthrene derivatives
IPC: C07J1/00
Filed: 1938-06-28
Abstract: 516,542. Sex hormones. SOC. OF CHEMICAL INDUSTRY IN BASLE. June 28, 1938, Nos. 19132, 19133 and 19134. Convention dates, June 28,1937, July 19, 1937, and June 10, 1938. [Class 2 (iii] Glycidic esters of the cyclopentanopolyhydrophenanthrene series are prepared by reacting a saturated or unsaturated polycarbonyl compound of the cyclopentanopolyhydrophenanthrene series containing nuclear keto groups with a alpha-monohalogencarboxylic acid ester in the presence of an alkali metal or an alcoholate; amide or amalgam thereof. The glycidic ester may then be treated with a saponifying agent or a decarboxylating agent. The keto groups may be first converted into substituted enol groups.. Thus, 4 parts of the 3-enolbenzoate of #<4>-androstene-3, 17-dione are dissolved in ether and treated with 13 parts of ethyl chloracetate and 7.5 parts of powdered sodium ethylate to give the 3-benzoic acid enol ester of #<4>-androstene-3-one-17-glycidic acid ethyl ester. On saponification by sodium hydroxide, this is converted into a glycidic acid derivative which, on heating, loses carbon dioxide to yield a mixture of isomeric #<5>-androstene-3- one-17-aldehydes. Instead of the 3-enolbenzoate of #<4>-androstene-3, 17-dione, and the enol esters such as the acetate, propionate, &c., may be used.
Patent GB-1218358-A (GB)
Title: Electrical switches
Inventor: SPARROW FRED GORDON
IPC: H01H21/28
Filed: 1967-04-26
Abstract: 1,218,358. Retractive switches. MIDLAND ELECTRIC MFG. CO. Ltd. 11 April, 1968 [26 April, 1967], No. 19237/67. Heading H1N. In an electric switch of the type comprising a housing 10 containing a switch 12 with an actuator 13 and operating means 17 for the switch mechanism incorporating an operating element 20, the operating means 17 incorporates a body 18 which carries the operating element 20 and a captive screw-threaded element 24 coacting with a complementary screw-threaded portion 14 of the housing 10 disposed about an opening 15 for the operating element 20. Spring-loaded element 20 is depressed by a can surface 21a on spindle 21 carrying arm 22 and roller 23. Element 24 is held captive on body 18 by circlip 25. The lower part 26 of body 18 is octagonal in cross-section and mates with an octagonal recess in body 10 or may have two diametrically opposite projections mating with diametral slots in the recess, Fig. 3 (not shown). The operating means may be a push-button (not shown) or a roller mounted directly on a plunger (not shown).
Patent GB-336949-A (GB)
Title: Improvements in or relating to electric heating elements
IPC: H01B7/16
Filed: 1929-06-22
Abstract: 336,949. Backer, C. B. June 22, 1929. Wire resistances, embedded and encased. - In an electric heating element comprising a wire embedded in magnesium oxide which is produced by wrapping the wire in magnesium which is afterwards converted into oxide by steam or water at high temperature and pressure as described in Specification 173,742, [Class 36, Electricity, Conducting &c.], the magnesium is applied to the wire in the form of two or more longitudinal strips bent into arcuate form so as together to constitute a tube. In the arrangement shown two such strips 3 are arranged in the casing 2 to receive the coil of wire 1, clearance being allowed to facilitate insertion. A magnesium wire 5 is passed along the axis of the coil to provide oxide for filling the interior of the coil.
Patent GB-504006-A (GB)
Title: Improvements in and relating to the manufacture of highly porus sweets
IPC: A23G3/02
Filed: 1938-06-29
Abstract: 504,006. Exhausting air. HENKEL, A. A. June 29, 1938, No. 19251. Convention date, March 8. [Class 8(i)] [Also in Group VI] Confectionery-treating apparatus, comprises a number of vacuum-chambers 6 embodied in a single structure, each chamber being independently connected, through a valve 14, with a manifold 13 connected to an exhauster 18 driven by a motor 19.
Patent GB-662116-A (GB)
Title: Packaging machine
IPC: B65B41/18
Filed: 1949-07-22
Abstract: 662,116. Feeding webs; collapsible rollers. SALFISBERG, L. L. July 22, 1949, No. 19315/49. Class 100 (i). [Also in Group XVII] A packaging- machine including a pair of rollers arranged to be simultaneously rotated in opposite directions to receive between them opposed layers of packaging material at least one of which has indiciabearing zones and between each of which commodity portions are deposited in spaced relation to each other lengthwise of said layers is characterised by means on said rollers for adjusting said layers of packaging material to vary the relationship of said indicia-bearing zones to the respective commodity portions. Tablets 14 are fed between cooperating rollers 6, 7 formed with circumferential recesses 13 so spaced that co-operating recesses 13 engage continuously fed wrapping webs 1, 2 about a tablet 14 to form a sealed package 15. The webs are fed so that indicia thereon normally register with the tablet; if, however, the indicia on the webs become out of register with the tablet the rate of feed of the web is increased or decreased by adjustment of means on the roller 6, which serve in effect, to expand or collapse the roller, until the indicia on the webs again register with the tablets, when said means is returned to normal. The said means may be adjusted manually or automatically. Instead of two strips of packing material a single strip folded longitudinally may be used. Rollers, collapsible.-The roller 6 is formed with spaced, longitudinally tapering . radial grooves in which are slidably mounted wedge shaped blades 19 held in by coiled springs 24. These blades normally project a short distance outwardly from the roller periphery and engage the webs between them and corresponding recesses 17 in the roller 7, radial adjustment of these blades varying the rate of web feed. For this purpose the blades have hooked ends 22 engaging a disc 23 mounted coaxially of the roller 6 and adjustable axially relative thereto by a yoke member 28 which is secured to a rod 29 moved longitudinally by rotation of a nut 32: on its threaded end. Specifications 441,315 and 632,230, [both in Group XVII], are referred to.
Patent GB-1404516-A (GB)
Title: Stabilization of microorganism cells lytic enzyme
IPC: A61K8/73
Filed: 1973-04-24
Abstract: 1404516 Stabilizing enzymes DAINIPPON PHARMACEUTICAL CO Ltd 24 April 1973 [22 April1972] 19380/73 Heading C3H [Also in Division A5] A method of stabilizing microorganism celllysing enzymes obtained by cultivation of a micro-organism of the genus (Streptomyces comprises mixing the enzyme or an extract comprising the enzyme with carboxymethyl cellulose or its sodium salt, glycerin or monoethanolamine alone or in admixture. The microorganism is preferably Str. diastatochromogenes ATCC 21418 or Str. farinosus ATCC 21482.