baber/WOPTO huggingface dataset:
Patent GB-811370-A (GB)
Title: Apparatus for the surface treatment of films
IPC: B29C59/10
Filed: 1956-04-20
Abstract: <PICT:0811370/IV (a)/1> Apparatus for subjecting a film to a high voltage electrical discharge comprises a pair of electrodes between which the film is passed, a sheet of dielectric material positioned on one of the electrodes, and means for applying a vacuum between the dielectric and the electrode to hold them firmly one against the other.  As shown, polyethylene film 11 is passed through an opening 12 in a housing 13 and around grounded rollers 14, 15 to a drum 16 having a smooth surface of stainless steel, and thence around grounded rollers 34, 40 and through an opening 41 in the housing. The drum 16 is insulated from ground, being driven through an insulating coupling.  The film is held against the roller 34 by a neoprene-covered roller 35 and a spring 39, and the rollers 34, 35 can be separated for inserting a film by means of a handle arm 38. The film is held against the drum by a neoprene-covered roller 26 urged against it by a piston in an air cylinder 31, the operation of which is reversed by a control valve when a film is to be inserted. The drum is connected to the nongrounded output terminal of a high voltage transformer, the other output terminal of which is grounded and which is supplied through a circuit-breaker from an A.C.-supplied variable autotransformer. Pivoted on grounded shafts 45 are two stators 42, each comprising a shell 43, strengthening ribs 44, and a handle 46 by which it can be swung outwardly when a film is to be inserted.  Each shell has a gasket 49 round its periphery, outside which is a flexible tube 58 mounted on brackets 59.  The space between the stators is closed by a strip 99 covered with a layer of gasket material 101. The tubes 58 are connected by a control valve to a vacuum pump so as to be collapsed and spaced from the gaskets when a sheet of dielectric material is placed at each end between the tube and gasket of each shell.  The tube is then connected to a compressed air source to seal the edges of the sheet and gasket.  A number of conduits leading to the inner surface of the shell are then placed by a control valve in communication with the vacuum pump, whereupon the sheet is held firmly to the shell, whereafter the tube 58 is connected to atmosphere.  Ozone formed by the electric discharge is removed through a duct near one end of the drum and connected to a vent fan.  The housing 13 rests on supports 47 on the stators. Current from the A.C. source is also supplied to a step-down transformer, the output from which, on closing a starting switch, energizes an operating relay which closes the circuit to the autotransformer and a holding circuit for itself, which is broken by opening a stop switch, or when the stators are in open position, when two switches are automatically opened.  If excessive current flows to the high voltage transformer, an overload relay is energized, and breaks the circuit of the operating relay and actuates an alarm. Reference has been directed by the Comptroller to Specification 715,914.
Patent GB-851095-A (GB)
Title: Improvements in or relating to the formation of apertures in members of channelled cross section
Inventor: WRITER EDWARD CHARLES
IPC: B21D28/28
Filed: 1959-04-10
Abstract: 851,095. Broaching. BELLING & LEE Ltd. April 10, 1959, No. 12139/59. Class 83 (3). A broach 24 comprises a spiral cutting-edge 7 on a tapered shank 2 (see Fig. 1, not shown). The helical rib 9 and flute 11 are burnished, and a chisel-edge 3 forms the start-hole. The rib extends a short distance along a cylindrical part 55 of the shank. Tubular &c. work 12 is secured in a cradle 13 by a clamping-plate 15 having rods 17, 18, to guide the tool-holder 23, which is operated by the ram 25 of an hydraulic or hand-operated press. A passage 14, 16 in the cradle 13 and plate 15 receives the tool, which is returned by springs 19, 20, on rods 17, 18.
Patent GB-418897-A (GB)
Title: Improvements in or relating to means for securing incandescent electric lamps in the holders thereof
IPC: H01R33/97
Filed: 1933-04-26
Abstract: 418,897. Electric - lamp holders. RODWELL, D. E., 4, Half Moon Street, Piccadilly, London. April 26, 1933, No. 12173. [Class 39 (ii).] An incandescent lamp is locked in position on its holder by a collar or ring 1 which has two or four resilient lugs 2, 4 gripping the holder 3 ; two of these lugs have slots 2<a> corresponding with the vertical parts 5<a> of the bayonet slots 5 in the holder, so that the projecting pins 6 on the lamp cap-when inserted in the slots 5-also enter the slots 2<a>, the final movement of the pins causing rotation of the collar 1 on the holder 3. Inside the holder is fastened a leaf spring 8 whose inturned end acts as a locking catch for the lamp and collar by entering the vertical part 5a of the bayonet slot, when the collar receives the above described movement. To release the latch a key is inserted into the collar through a slot 11, the key lying against the lamp bulb when in use. The catch rests on the holder when not in use and to prevent excessive entry into the bayonet slot of the latch its end is formed with an abutment 8<b> which engages the adjacent lug 2. In a modification, the key instead of pivoting on the edge of the slot 11 through which it is inserted, engages a downwardly projecting peg carried inside the collar, the key pivoting around an axis approximately parallel to the lamp axis. Reference has been directed by the Comptroller to Specifications 11747/10, 29425/10, and 322,965, [all in Class 39 (ii)].
Patent GB-997833-A (GB)
Title: Mechanism for intermittently actuating the discharge valve of a pressurised dispensing container
Inventor: FLANAGAN PETER
IPC: G05G25/00
Filed: 1962-03-30
Abstract: 997,833. Aerosol dispensers. COOPER, McDOUGALL & ROBERTSON Ltd. March 14, 1963 [March 30, 1962], No. 12241/62. Heading F1R. The valve of an aerosol container is intermittently actuated and released by means of an operating arm 17 and a release arm 16, the arms being pivoted at 18 and drawn together by a spring 23 and engageable with respective cam tracks 15, 13 on a cam mechanism driven through gearing by a synchronous electric motor. The arm 17 carries an adjustable member 20 which opens the valve 7 when the step in cam 15 releases the arm 17; subsequently the step in cam 13 releases the arm 16, a stop 24 on which engages the arm 17 to raise it and allow the valve to close. The valve may be of the metering type.
Patent GB-713704-A (GB)
Title: Improvements relating to supports or carriers for cycle bags and the like
Inventor: SMITH ALFRED CHARLES
IPC: B62J7/02
Filed: 1952-05-15
Abstract: 713,704. Luggage-carriers. SMITH & CO. (ACCESSORIES), Ltd., A. J. May 14, 1953 [May 15, 1952], No. 12269/52. Class 136(1) In a carrier for a cycle bag a looped-shaped wire frame a has downwardly directed limbs a2 which are clinched by turned over side parts b<SP>1</SP> of a stem b<SP>3</SP> of a T-shaped bracket b the horizontal limb of which bears against and spans the inner faces of the forks d whilst the lower part of the vertical limb has a slot or aperture b<SP>4</SP> engaging the pivot pin c<SP>1</SP> of a caliper brake c. Slots b<SP>2</SP> are formed in the bracket to receive the limbs a<SP>1</SP>.
Patent GB-1317671-A (GB)
Title: Photosensitive target for a camera tube and tubes incorporating  such targets
IPC: H01J29/39
Filed: 1971-04-29
Abstract: 1317671 Image pick-up tubes THOMSONCSF 29 April 1971 [30 April 1970] 12279/71 Heading H1D A target for a camera tube comprises a photosensitive layer 1, Fig. 3, covered on one side with a thin conductive transparent film 4 and on the other with an insulating layer 2 which is secondary emissive and which also exhibits bombardment induced conductivity. The layer 1 is preferably a p-type semi-conductor such as silicon for use in the wavelength range 4000Š-1 micron, germanium for use up to 1À6 microns, gallium arsenide for 4000-9000Š, gallium phosphide or cadmium sulphide for 200-5900Š, and may be some hundred microns thick. The layer 2 may be silica or zinc sulphide and may be a few hundred angstroms thick. In operation the incident light L produces charges Qn at the interface; when the target is scanned by a high velocity electron beamf from a negatively biased cathode (not shown) the induced conductivity allows these charges to pass to the surface from which they are removed by secondary emission. A grid 3 at a potential of 100 volts collects the secondary electrons and provides an output signal across resistance R.
Patent GB-921059-A (GB)
Title: After-treatment of polyolefines
Inventor: WARD JAMES STANLEY
IPC: D06P3/79
Filed: 1960-04-07
Abstract: Chlorinated or chlorosulphonated polyolefin is reacted with hydrazine to give a product having affinity for acid dyes.  The polyolefin may be derived from ethylene or propylene and may be in the form of fibre, filament, yarn, fabric or film.
Patent GB-473589-A (GB)
Title: Improvements in or relating to electric contact making relays
IPC: H01H36/00
Filed: 1937-04-30
Abstract: 473,589. Magnetic switches. GREENLY, H. April 30, 1937, No. 12350. [Class 38 (v)] In an inductor relay the armature is composed of two parts which are pivoted so as to balance each other and which are connected by a coupling which permits the two parts to move in opposite directions. As shown in the Figure, the two armature parts are mounted on separate pivots 8 and connected together at their inner ends by a knuckle joint 9. The free ends 7 of the parts are normally held attracted against the shaped ends of polepieces 6 inductively magnetized by a permanent magnet 5. On the passage of a plate of magnetic material through the gap 4 between the magnet and the polepieces 6, the magnetic flux is diverted through this plate and the ends of the armature parts are drawn from the polepieces 6 by means of a spring 10 connected between lateral arms 11 attached to the armature parts. The movement of these parts brings a contact 13 against a fixed contact. Variation of the retractive force exerted by the spring 10 may be produced by placing its ends in different notches in the outer sides of the arms 8 and limitation of the movements of the armature by adjustable stops 12. In a modified form the operation of the relay is produced by diversion of the permanent magnet flux through a magnetic plate which passes the permanent magnet on its side remote from the armature. Specifications 440,907 ; and 459,133, [Group XXX], are referred to.
Patent GB-423575-A (GB)
Title: Improvements in and relating to the exchange of energy between two alternating current networks
IPC: H02M5/447
Filed: 1933-04-28
Abstract: 423,575. Converting; frequency changing. AKT.-GES. BROWN, BOVERI, & CIE, Baden, Switzerland. April 28, 1933, No. 12399. Void [Abridged as open to inspection under Sect. 91 of the Acts, Oct. 31, 1933]. [Class 38 (ii)] An arrangement for controlling the interchange of power in either direction between A.C. circuits a, b comprises a pair of grid-controlled multi - anode valves d, c associated with transformers f, e, and interconnected through a D.C. line h, both valves being capable of operating either as rectifier or inverter and their grid-control devices k, i being adapted to produce simultaneous phase shift of the grid potentials in opposite senses.
Patent GB-692264-A (GB)
Title: Improvements in and relating to the manufacture of flat paint brushes
IPC: A46B11/08
Filed: 1950-05-19
Abstract: 692,264. Paint brushes; bristles fixing. HOLLINS BRUSH CO., Ltd., and EDWARDS, W. April 6, 1951 [May 19, 1950], No. 12569/50. Class 19. A flat paint brush of the kind having a wedge 6 embedded in the bristles, the wedge being of a plastic material, bonded fibre, steel or other material which will withstand a vulcanizing temperature, is manufactured by positioning the bristles and wedge in the ferrule 5 with the root ends projecting therefrom, treating the root ends and wedge with a rubber solution, then positioning the treated portion in the ferrule (Fig. 2) and vulcanizing the whole to make the material in the ferrule into a hard mass 7, drilling the ferrule and vulcanized mass to form holes through the wedge and inserting nails 8 from one side and riveting the projecting ends of the nails by spinning and thus eliminating the usual turning over of these ends by forming heads 9. A brush handle 10 is then inserted in the ferrule and secured by pins 11.
Patent GB-755325-A (GB)
Title: Improvements in wiredrawing machines, winding machines and the like
IPC: B21C1/12
Filed: 1953-05-06
Abstract: 755,325. Friction clutches. NORTON & CO., Ltd., Sir J. F., and DAVIDSON, N. Aug. 4, 1954 [May 6, 1953], No. 12580/53. Class 80(2) [Also in Group XXII] In a wire drawing machine the drum 14, Fig. 1, is driven through a frictional clutch 16, 17 engaged by electromagnetic means comprising a variably energized coil 9 and an axially slidable driven shaft 15 extending within the coil 9 and engaged with the frictional seating 17 under the electromagnetic attraction of the coil. The drive shaft 1 for each capstan runs in bearings 5, 6 and is driven by a chain 3 through a double sprocket 2 which drives the next capstan through a chain 4. The shaft is coupled to a housing 7 running on bearings 8 and containing the coil 9 and the driving frictional seating 17. The capstan 14 is keyed on shaft 15 which is freely rotatable in the housing 7 and free to move axially to a limited extent to permit the clutch seatings 16, 17 to engage. Electric current is supplied to the coil through slip rings 10 and a variable resistance. In a modification a pair of coaxial capstans 31, 35, Fig. 3, are driven from a shaft 26. A housing 27 on the shaft 26 contains a coil 28 supplied with current from slip rings 29 and acting upon a conically faced friction member 30 which is integral with the capstan 31 and contains a second coil 32 supplied with current through slip rings 33. This second coil 32 acts upon a conical friction member 34 carrying the second capstan 35
Patent GB-578628-A (GB)
Title: Gas-or air-turbine plant
Filed: 1943-08-04
Abstract: 578,628. Elastic-fluid turbines. MASCHINENFABRIK OERLIKON. Aug. 4, 1943, No. 12595. Convention date, Aug. 4, 1942. [Class 110 (iii)] A gas, or air, turbine plant has means to regulate the flow of working fluid in one or more parts of the plant, and independent regulating means for combustive air supplied to a furnace or combustion chamber 5 provided with, preferably, solid fuel. The " flow-control " means may be throttling or by-passing arrangements for stages or turbines, varying the inlet valve openings for turbines or compressors, speed variations, addition or subtraction of fluid from a circuit or variation in pitch of guide or moving blades. A heat accumulator 9 is included in the plant, acting also as a fluedust separator. It comprises staggered rows of cylindrical rods of refracting material to which the dust adheres. A compressor 1 supplies air to a heat-exchanger 2 which feeds a usefuloutput turbine 3 and a compressor-driving turbine 4. The exhaust from 4 flows, partly through a pipe 7 to a furnace 6, and partly through a pipe 8 to mix with the burnt gases in the chamber 5, under control of a thermostat 14 which regulates the position of valves 15, 16. A speed governor 13 controls a valve 12 to regulate the amount of fluid by-passing 3. Parts of the furnace may be put into and out of operation according to the temperature of the air at the intake to turbine 3, or, when.liquid or gaseous fuel are being used, the fuel feed can be controlled. The thermostat 14 may be placed elsewhere in the circuit. A throttle valve 17 may be used. The turbines 3, 4 may be combined into one turbine which drives an electrical generator 10 and the compressor 1. A motor 19 is used to start up the plant. An additional by-pass 11<1> is controlled by a valve 12<1>. The combustion chamber may occupy the alternative position 5<1> with valves 15<1>, 16<1>. In a second arrangement, Fig. 3, the compressor 1 supplies heat-exchangers 2 and 18, and is supplied with air through a cooler 26. Air is pre-heated in a heater 19<1>.
Patent GB-1030363-A (GB)
Title: Polyamide compositions of improved temperature stability
IPC: C08K5/00
Filed: 1964-03-25
Abstract: In Example (8) copper-di-hexamethylenediamine iodide is made by reacting in aqueous solution, hexamethylene diamine, potassium iodide and copper sulphate.  Examples (9), (10) and (11) describe analogous processes for the preparation of:-(9) copper di-hexamethylene diamine bromide; (10) copper di-propylene diamine iodide and (11) copper di-propylene-diamine bromide.ALSO:A method of improving the temperature stability of a polyamide comprises incorporating therein a minor amount of a metal complex of the general formula [Me-(X)n]Ym, where Me is a complex-forming metal from a sub-group or from Group VIII of the Periodic Table, X is ammonia, hydroxylamine, hydrazine, urea, biurel or an aliphatic, aromatic or heterocyclic amine, polyamine or polyimine either alone or together with one or more carbonyl compounds, water molecules or acid anions as additional ligands, n is an integer greater than 1, Y is an inorganic or organic acid radical or hydroxyl radical and m is a number expressing the relationship between the valency of the complex cation [Me(X)n] and the anion Y. Specified metals are copper, zinc, cadmium, chromium, iron, manganese, cobalt and nickel. Specified bases which may be present in the complexes are aniline, pyridine, quinoline, a , a 1-dipyridyl and phenylhydrazine, ethylene diamine, propylene diamine, hexamethylene diamine and o-phenylene diamine.  Specified acid radicals are iodide, bromide, phosphite, phosphate, acetate and adipate.  In the examples:-(1) e -caprolactam is polymerized in the presence of water, benzoic acid, potassium bromide and copper di-(ethylene diamine) hydroxide; (2) e -caprolactam is polymerized in the presence of water, benzoic acid and copper di-(hexamethylene-diamine) iodide; (3) hexamethylene diammonium adipate is polymerized in the presence of water, acetic acid, potassium iodide and copper di-(ethylene diamine) hydroxide; (4) e -caprolactam is polymerized in the presence of water, benzoic acid and copper-o-phenylene diamine sulphate; (5) e -caprolactam is polymerized in the presence of water, benzoic acid and nickel di-(hexamethylene diamine) iodide; (6) e -caprolactam is polymerized in the presence of water, butyl-ammonium acetate and cobalt tri-(hexamethylene diamine) iodide; and (7) e -caprolactam is polymerized in the presence of water, butyl ammonium acetate and copper di-hexamethyl-enediamine bromide.
Patent GB-1311143-A (GB)
Title: Fluid spring
IPC: B60G11/28
Filed: 1970-03-17
Abstract: 1311143 Diaphragm fluid springs GOODYEAR TIRE & RUBBER CO 17 March 1970 [14 April 1969] 12742/70 Heading F2S In a fluid spring in which a diaphragm 6 rolls down on to a piston 10, a resilient member 1, having a thickness of between 0À030 and 0À375 inch, mounted on the piston flexes to prevent the accumulation of debris. The resilient member is retained on the piston by a lip 2, or, if it covers only a part of the piston (Fig. 7, not shown), by bonding, in which case it must be more than 0À09 inch thick. Both the member and the diaphragm are fabric reinforced. The other end of the diaphragm may be attached to an identical piston (Fig. 6, not shown) or a flat plate (14, Figs. 3 and 5, not shown), in which case the diaphragm may be guided by a retaining ring (15).
Patent GB-236877-A (GB)
Title: Automatic repeating toy pistol
IPC: F41B7/00
Filed: 1925-05-15
Abstract: 236,877. Jonassen, A. C. Oct. 27, 1924, [Convention date]. Projectors. - The magazine 4 of a tov pistol is placed either underneath the barrel 3 or in the butt, and peas &c. 12 are passed from the magazine to the barrel through a communicating passage 7 by means of a member 9 integral with or operated from the trigger 10. In its passage to the barrel, a pea forces back a spring 8 or a spring-pressed pivoted member, such spring or pivoted member being released to discharge the pea when the pea has completely entered the barrel. Peas are forced into the magazine through an aperture 17 against the action of a spring 6 which abuts against a removable cap 18. The free end of the spring 6 terminates in a coil, or in a clip 4<2>, which is limited in its motion by a stop 4'. A stop limits the movement of the lever 9.
Patent GB-369453-A (GB)
Title: Manufacture of hydroxy-benzo-carbazoles
Filed: 1931-04-30
Abstract: Hydroxybenzocarbazoles of the general formula <FORM:0369453/IV/1> wherein one y = H, the other y = OH, X = hydrogen or alkyl, the nuclei R1 and R2 may contain substituents and the nucleus R2 may be condensed with a further nucleus are made by heating an arylhydrazine in the presence of mineral acid with an a -b -dihydroxynaphthalene-bisulphite addition compound. Phenyl-, naphthyl- and N-alkyl-arylhydrazines (asymmetrical) are specified. The products are valuable for the manufacture of azo-dyestuffs in substance or on the fibre.  In examples (1) 2<1>-hydroxy-7 : 8-benzocarbazole is made from phenylhydrazine hydrochloride and the addition compound of 1 : 6-dioxynaphthalene and sodium bisulphite in sulphuric acid solution, (2) N-methyl-2<1>-hydroxy-7 : 8-benzocarbazole is similarly made from N-methylphenylhydrazine, (3) 2<1>-hydroxy-3<1> : 6-dibromo-7 : 8-benzocarbazole is made from phenylhydrazine and the sodium bisulphite addition compound of 4 : 7-dibromo-1 : 6-dioxynaphthalene, (4) 2<1>-hydroxy - 1 : 2 : 7 : 8 - dibenzo - 1<11> - chlorocarbazole is made from 5-chloronaphthylhydrazine and the bisulphite addition compound of 1 : 6-dioxynaphthalene, (5) 3<1>-hydroxy-7 : 8-benzocarbazole is made as in (1) from 1 : 7-dioxynaphthalene, (6) 3-methyl-N-ethyl-3<1>-hydroxy-7 : 8-benzocarbazole is made from N-ethyl-p-methylphenylhydrazine and the addition compound of 1 : 7-dioxynaphthalene.  Specification 275,326, [Class 2 (iii), Dyes &c.], is referred to.  4 : 7-Dibromo-1 : 6-dioxynaphthalene is made by treating the sodium bisulphite addition compound of 1 : 6-dioxynaphthalene with bromine in aqueous solution. 5-Chloronaphthylhydrazine is made by reducing the diazo compound of 5-chloro-1-naphthylamine.  N-ethyl-p-methylphenylhydrazine is made by nitrosating N-ethylamino-p-methylbenzene and reducing the nitroso compound with zinc powder and acetic acid.
Patent GB-595127-A (GB)
Title: Improvements in or relating to the preparation of lead salicylates and mixtures containing the same
IPC: C09C1/14
Filed: 1944-07-05
Abstract: Lead salts of salicylic acid are prepared by adding salicylic acid to an aqueous slurry of lead oxide.  Pentabasic lead salicylate, monobasic lead salicylate, and normal lead salicylate are successively formed by a continued addition of dry or an aqueous slurry of salicylic acid with agitation.  The completion of the formation of the salts at the various stages is indicated by a sudden drop in pH value.  Mixtures of intermediate basicity may also be obtained.  Solution forming catalysts, e.g., acetic acid, nitric acid &c. may be employed, and the reactions may be conducted at elevated temperatures.  The penta- and monobasic lead salicylates may be reacted with acids, e.g., sulphuric, oxalic, carbonic, which will form insoluble lead salts, to obtain mixtures of lead salicylates and insoluble salts such as lead sulphate, oxalate, or carbonate.
Patent GB-1102078-A (GB)
Title: Extrusion process
Inventor: JACK JAMES
IPC: B29C48/32
Filed: 1965-03-26
Abstract: 1,102,078. Extruding polypropylene tubing. B. X. PLASTICS Ltd. 11 March, 1966 [26 March, 1965], No. 12841/65. Addition to 1,059,346. Headings B5A and B5B. The apparatus described in Specification 1,059,346 for producing extruded isotatic polypropylene tubing is modified by having a feed opening 9 which allows the formation of a substantially closed circuit for the quenching liquid. This liquid preferably has a temperature range between 1 and 20 C. within sleeve 6. Further, former discs 15 may vary in diameter, e.g. increase in diameter downstream, and an additional shaping disc (not shown) may be placed above the level of the liquid in bath 5. Discs 15 may be perforated so that the pressure of the air supplied below the former via conduit 18 may be regulated.