baber/WOPTO huggingface dataset:
Patent GB-257971-A (GB)
Title: Improvements in and relating to wrapping machine
IPC: B65B19/22
Filed: 1925-05-04
Abstract: 257,971. Marks, E. C. R., (American Machine & Foundry Co.). May 4, 1925. Feedings.-A machine for wrapping packages of cigarettes or like small articles comprises a device for continuously pulling a taut strip of web from a supply, and mechanism for producing a to-and-fro movement of the device alternately advancing and retarding the leading end of the strip. As shown, webs pass from reels 46, Fig. 2, on shafts 47 beneath idle rollers 70, Figs. 5 and 9, and between rollers 55, 68. The shaft 54 of the rollers 55 is continuously driven by a sprocket 56 and chain 57 and chains 60, 64, 67. The frame 50 carriyng the rollers is oscillated between the positions shown in Figs. 5 and 9 respectively by an eccentric 43 and arm 53, so that the leading edge of the web is alternately advanced and retarded'. When the leading end has been advanced past guides 71 and into a guide channel 75 and is at a stop owing to the upward movement of the frame 50, a flying knife 76 co-operates with a ledger plate 78 to sever a wrapper, which is now in position to be assembled with a package.
Patent GB-902536-A (GB)
Title: Improvements in or relating to lenses
Inventor: STIRLING JOHN FOSTER
IPC: G02B3/08
Filed: 1959-04-06
Abstract: 902,536. Fresnel lenses. JOBLING & CO, Ltd., JAMES A. April 6, 1960 [April 6, 1959]. No. 11598/59. Class 97 (1). A Fresnel lens has several concentric prisms, P1, P2, &c., the hypothetical surface of each prism, which surface contains the points of intersection of incident rays emanating from the principal focus of the lens and the corresponding refracted rays, cutting a spherical surface which has the principal focus of the lens as its centre and which has the same radius of curvature as the spherical surface of the lens on the side thereof remote from the principal focus. This outer lens surface has its centre of curvature on the optical axis but displaced from the principal focus by a distance equal to 2/3 of the average thickness of the lens material. Specification 902,535 is referred to.
Patent GB-626611-A (GB)
Title: Improvements in and relating to inductor frequency changers
IPC: H02K47/18
Filed: 1945-05-10
Abstract: 626,611. Rotary converters. BRITISH THOMSON-HOUSTON CO., Ltd. May 10, 1945, No. 11730. Convention date. May 10, 1944. [Class 35] A polyphase frequency converter having evenly spaced teeth on its rotor has its stator wound with a polyphase exciting winding and a pair of generating windings wound respectively for a number of poles equal to twice the number of rotor teeth plus and minus the number of exciting winding poles, the windings being mutually non-inductive. As shown for a rotor with 11 teeth, the exciting winding 11 is wound for 2 poles and the generating windings 13, 14 are wound for 20 and 24 poles respectively. The machine can be driven by a variable speed motor 17, or it will drive itself in either direction by short-circuiting one or other of the generating windings, in which case the remaining winding will supply power.- Alternatively, the rotor may be provided with a squirrel-cage winding.
Patent GB-398454-A (GB)
Title: Improvements in or relating to the production of alkali metal cyanids
IPC: C01C3/10
Filed: 1933-04-24
Abstract: Alkali metal cyanides are decolourized by heating them to a temperature considerably above their fusion point and then cooling them relatively slowly to a temperature near but above their solidification point.  They may be subsequently cooled to ordinary temperature at any desired rate.  An alkali cyanide which has been obtained by evaporation of its aqueous solution may be so treated. The cooling may be from a temperature of 1150-1250 DEG  C. to 50-100 DEG  above the solidification temperature in a period of one half to three minutes or at a rate of 200-400 DEG  per minute.  During the process the carbon is oxidized by the cyanates and carbonates usually present in the cyanide.  A small quantity of air or other oxidizing substance may be introduced into the fused mass.
Patent GB-698789-A (GB)
Title: Improvements in and connected with aluminium powder
IPC: B22F9/04
Filed: 1952-05-12
Abstract: 698,789. Metal powder. SOC. ANON. POUR L'INDUSTRIE DE L'ALUMINIUM. May 12, 1952 [May 10, 1951; April 10, 1952], No. 12002/52. Drawings to Specification. Class 83 (ii). Aluminium powder, for making sintered aluminium bodies, is made flaky by stamping or hammering or in a ball mill in the presence of an amount of lubricant, e.g. below 0.3 per cent, insufficient to prevent mutual welding of the particles. The oxide skin on the flakes amounts to at least 6 per cent, preferably 10 to 15 per cent of the whole. The density of the powder is at least 0.7 kg./litre and preferably over 0.8. The lubricant may be stearic or other fatty acid and should amount to under 1 per cent. Aluminium, 99.6 per cent purity, in the form of strips 10-15 cm. long, 1-2 cm. wide and 0.1- 0.2 cm. thick made by allowing molten drops to fall on a cooled rotating horizontal plate, is stamped with 0.4 per cent of stearic acid in a large mortar by twelve pestles each weighing 45 kg. and making 80 strokes per minute 99 mm. long to reduce it to flake form. This with an additional 0.4 per cent of stearic acid is stamped in a similar machine to reduce the flakes in size to under 0.7 mm. and this is reduced in a ball mill, without further lubricant but in an atmosphere of protective gas containing a small addition of oxygen, to a flake size under 0.057 mm. This is dry-stored in air for 4-8 weeks and then treated in a ball-mill in a protective atmosphere, e.g. nitrogen containing 5 to 8 per cent oxygen, to reduce the flakes to under 0.035 mm. This is removed pneumatically, passed through a sieve with 0.12 mm. mesh and then stored for 2-3 months whereby the lubricant is reduced and the oxide increased. Specifications 373,784, 391,839, 430,777, [all in Group II], and 625,364 and U.S.A. Specification 2,017,851 are referred to.
Patent GB-1402181-A (GB)
Title: Pressure-fluid-operated tools
IPC: B25D17/24
Filed: 1972-03-15
Abstract: 1402181 Cotters DOBSON PARK INDUSTRIES Ltd 7 Feb 1973 [15 March 1972] 12033/72 Heading F2H [Also in Division B4] A tool bit 27 of a percussive tool is releasablyheld by a pin 29 consisting of two halves bonded to opposite sides of a strip of rubber. At least one end of the pin may be tapered and formed with a shoulder.
Patent GB-584745-A (GB)
Title: Improvements in or relating to mattress coverings
IPC: A47C27/04
Filed: 1944-06-24
Abstract: 584,745. Mattress covers. BOYD, J. D. June 24, 1944, No. 12045. [Class 52 (iv)] The outer cover of a mattress is in two parts 1, 2 detachably connected together, preferably by a sliding clasp fastener 10, and also detachably connected by press-fasteners 8, 9 to the encased filling.
Patent GB-664776-A (GB)
Title: Magnetic pulley
IPC: H01F7/02
Filed: 1949-05-05
Abstract: 664,776. Magnetic separators. DEHN, S. G. (Dings Magnetic Separator Co.). May 5, 1949, No. 12052/49. Class 72 [Also in Group XXXV] A magnetic pulley has an annular hub 6 from which radiate alloy magnets 8 fitted with pole pieces 10 of magnetic material; the surface of the pulley being completed with non- magnetic spacer bars 12 and the pole pieces and spacer bars being interlocked as shown by flanges 18. End discs 14 situated one on either side of the pulleys retain the pulley components by means of axially extending bolts 15.
Patent GB-350141-A (GB)
Title: Improvements in or relating to screw sockets
IPC: F16B37/12
Filed: 1930-04-16
Abstract: 350,141. Screw sockets. ARENZ, J. A., 60, Broad Street, Mount Vernon, New York, U.S.A. April 16, 1930, No. 12119. Convention date, April 18, 1929. [Class 89 (i).] A screw socket, bored axially to receive the screw, has a double thread 9, 10 on its outer surface which terminates in a common point 14. The surface connecting the two threads is inclined downwards, to form the barbed edge 17. Reference has been directed by the Comptroller to Specification 3012/89, [Class 89, Nails &c.].
Patent GB-839529-A (GB)
Title: Pesticidal compositions
IPC: A01N51/00
Filed: 1958-04-16
Abstract: A pesticidal composition comprises as active ingredient at least one compound of the general formula <FORM:0839529/VI/1> wherein the Aryl radical is a member of the benzene, naphthalene or heterocyclic series, which may or may not be substituted, and R is hydrogen, alkyl containing 1-5 C atoms or phenyl, and an inert solid diluent or extender or a liquid diluent or extender containing an emulsifier. Emulsifying agents such as a phenyl hydroxy polyglycol ether, a diphenyl hydroxy polyglycol ether or a benzyl hydroxy polyglycol ether containing up to about 15 glycol radicals may also be included in the composition.  Specified active ingredients are N - phenyl - N1 - thionylhydrazine, N - (2, -3- or 4-chlorophenyl)-N1-thionylhydrazine, N-(2,4 - dichlorophenyl) - N1 - thionylhydrazine, N - (phenyl - 4 - carboxylic acid ethyl ester)-N1 - thionylhydrazine, N - (2,4 - dinitrophenyl)-N1 - thionylhydrazine, 2 - (N1 - thionylhydrazine) - benzimidazole, 2 - (N1 - thionylhydrazine) - benzthiazole, N - (4 - methylphenyl) - N1-thionylhydrazine, N - (3 - dimethylamino - 4, 6 - dinitrophenyl) - N1 - thionylhydrazine, N-a  - naphthyl - N1 - thionylhydrazine, N - (4-methoxyphenyl) - N1 - thionylhydrazine, N-(2 - methyl - 4 - chlorophenyl) - N1 - thionylhydrazine, N - phenyl - N - methyl - N1 - thionylhydrazine or N,N - diphenyl - N1 - thionylhydrazine. Specified solid diluents are lime, chalk, talcum, bentonite, kieselguhr, clay, and liquid diluents are alcohol, ketone, water.
Patent GB-885854-A (GB)
Title: Improvements in or relating to flying spot film scanners
Inventor: NEWTON GEORGE CHARLES
IPC: H04N5/257
Filed: 1957-04-15
Abstract: 885,854. Television. ELECTRIC & MUSICAL INDUSTRIES Ltd. April 10, 1958 [April 15, 1957], No. 12179/57. Class 40(3). The scanning light produced by a fiying- spot scanner tube 1 is directed on to a first film transport head 2 in an opaque mirror 4 which, when the end of the film in head 2 has been reached, is removed from the light, path of tube I (e.g. by means of a solenoid) so that light from the latter is then directed on to a second film transport head 3 via a fixed mirror 5.
Patent GB-579811-A (GB)
Title: Improvements relating to steam turbines
IPC: F01D9/06
Filed: 1941-09-22
Abstract: 579,811. Steam turbines. HALL, J. S., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Sept. 22, 1941, No. 12276. [Class 110 (iii)] A variable speed astern turbine, housed within the exhaust casing of an ahead turbine, has two nozzle boxes b, c. The pipe h from the box c, situated below the axis is brought out of the exhaust casing at a point above the axis and symmetrical with that of the pipe f from the upper box b. Each pipe is sealed to the exhaust casing by an expansion piece g, l. Steam supply to the two nozzle boxes may be selectively controlled or jointly controlled by throttling as described in Specification 579,810.
Patent GB-378062-A (GB)
Title: Improvements in and relating to the transmission of electric power
IPC: F24F6/12
Filed: 1931-04-25
Abstract: 378,062. Converting. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Bedford, B. D. ; 329, Germania Avenue, Schenectady, New York, U.S.A.) April 25, 1931, No. 12299. Convention date, April 25, 1930. [Class 38 (ii).] In an arrangement for supplying an A.C. load circuit 11 with current derived from a D.C. source 10 through an inductive winding 12 and a pair of metal vapour discharge devices 13, 14 associated with means such as a condenser 21 for eflecting commutation of current therein, provision is made for subjecting the grid of each of the valves 13, 14 to a transient of negative potential immediately upon interruption of current in the corresponding valve in order to effect rapid deionization thereof. In the arrangement shown, the grid circuits comprise a transformer 25 and a condenser 28 across which is impressed an alternating potential derived from a transformer 29, of sufficient magnitude to render the valves conducting in turn and thus determine frequency of the inverter. The primary of the transformer 25 is connected across a resistance 22 connected in series with a condenser 23 across the terminals of the winding 12. The arrangement is such that discharge of the condenser 23 consequent on starting of current in either of the valves causes such a potential to be developed in the secondary of transformer 25 as to apply a negative voltage impulse to the grid of the other valve in which current has been interrupted by the action of the commutating condenser 21. Modifications are described with reference to arrangements in which the grid circuits are in self-exciting connection, the auxiliary source feeding transformer 29 and condenser 28 being dispensed with. In one such modification, Fig. 4 (not shown), the condenser 23 also is dispensed with, the transient of negative potential whereby the valves are deionized being produced by reversal of current in the primary of the grid transformer on discharge of the commutating condenser 21.
Patent GB-1097314-A (GB)
Title: Fuel cell
IPC: H01M8/08
Filed: 1965-03-24
Abstract: 1,097,314. Fuel cells. ROBERT BOSCH G.m.b.H. March 24, 1965 [March 25, 1964], No. 12366/65. Heading H1B. Saturated hydrocarbons are oxidized in a fuel cell having a fuel electrode with a metallic platinum catalyst and an electrolyte of dilute sulphuric acid at a concentration of up to 1À5 mol/litre. A metal hydrogen sulphate is preferably added to the electrolyte in 1-3 mol/litre and the fuel electrode is made by leaching aluminium from a mixture of powdered gold 50-60% and powdered aluminium 50-40%.
Patent GB-698737-A (GB)
Title: Driving and like chains
Inventor: DUNCAN ANGUS WELLESLEY
IPC: B65G19/24
Filed: 1950-05-17
Abstract: 698,737. Cotters; driving-chains. MINING ENGINEERING CO., Ltd. May 16, 1951 [May 17, 1950], No. 12383/50. Classes 24 and 89 (ii) Driving chains carrying scraper bars as used in mining have the joint pins, for the links 1 that carry the bars 5 as by welding, fitted with cottering means that enable the pins to be removed and inserted quickly merely by end pressure or a hammer blow. The proposed means comprises balls 10 with a compression spring 12 retained by peening in a transverse hole in the pin so that the balls normally protrude by not more than one third of their diameter. In a modification the balls are replaced by leaf springs secured in longitudinal slots machined in the pin.
Patent GB-733075-A (GB)
Title: Improvements in detergent compositions
Inventor: HAMPSON GEORGE CHARLESWORTH
IPC: C11D3/32
Filed: 1952-05-16
Abstract: Detergent compositions contain an organic ionic soapless detergent and a compound of the formula R(Ar)nOR1CONH2, where Ar is a benzene nucleus, n is 0 or 1, R1 is an alkylene or alkylidene radical containing not more than 6 and preferably 1 to 3 carbon atoms, and R is an alkyl radical having 4-12 carbon atoms when n is 1, of which at least 4 are in a straight chain counting from the carbon atom attached to the benzene ring, and 8-16 carbon atoms when n is 0, of which at least 8 are in a straight chain counting from the carbon atom attached to the ether linkage.  When n is 1, the group R may be in the ortho-, meta- or para-position to the ether linkage, but the para-isomers are preferred.  The benzene nucleus may be further substituted by groups such as methyl or hydroxyl. Specified amides of the formula above are p-tert.-octylphenoxyacetamide, alpha-(p-tert.-octylphenoxy)-propionamide, p-nonyl-phenoxyacetamide and n-octyl-, decyl- or dodecyl-oxyacetamide.  The ionic soapless detergent may be anionic, e.g. a sulphated fatty alcohol, a secondary alkyl sulphate, an alkyl sulphonate or an alkaryl sulphonate, such as the sodium salt of sulphonated dodecyl benzene or toluene, or it may be cationic, e.g. cetyltrimethylammonium bromide.  The compositions may contain builders such as sulphates, silicates, carbonates, condensed phosphates, such as tetrasodium pyrophosphate or tripolyphosphates, e.g. pentasodium tripolyphosphate, or salts of carboxymethylcellulose.  A typical composition contains 21.5 parts of sodium secondary alkyl (C8-18) sulphate, 22.5 of tetrasodium pyrophosphate and 56 of sodium sulphate, to which is added 2 parts of alpha(p-tert.-octylphenoxy)-propionamide or of p-tert.-octylphenoxyacetamide.  The presence of the amides increases the persistence of the lather formed in washing operations carried out in soft water.  Specification 723,212 is referred to.
Patent GB-387882-A (GB)
Title: Improvements in preparing machines for spinning
IPC: D01H5/12
Filed: 1932-04-29
Abstract: 387,882. Cleaning-arrangements for gill-bars. TEXTILE ACCESSORIES, and FIEVET, E., Chemin du Bac du Crocq, Armentieres, Nord, France, April 29, 1932, No. 12422. Convention date, June 26, 1931. Addition to 308,338, [Class 120 (i), Spinning, Preparation &c. for], and 365,013. [Class 120 (i).] A further modified form of the cleaning - member described in the parent Specification comprises a rubber blade or scraper 9 removably mounted in a groove 14 formed at the lower part of the sliver conductor 4. The blade or scraper 9 is formed with a beading 9<1> on its upper edge adapted to engage in the groove 14.
Patent GB-618516-A (GB)
Title: Plant for the removal of oil from trade effluents
IPC: B01D17/02
Filed: 1946-04-25
Abstract: 618,516. Purifying trade waste effluents. WEDGWOOD, P., and BATTERSBY. T. C. April 25, 1946, No. 12447. [Classes 46 and III] A process for removing emulsified oil from aqueous trade waste effluents comprises passing the liquor upwardly through a vessel containing a blanket of alkaline precipitated medium consisting of calcium carbonate and calcium hydrate, the medium being preferably the sludge produced in water-softening plants. As shown a conical vessel A is provided with a sludge. blanket X through which passes the trade waste effluent from an inlet pipe B. The oil is absorbed by the sludge blanket and the treated liquor passes through a pipe D to a filter tank E containing fine coke breeze, ashes or similar material. The purified liquor passes to the sewer pipe L through an outlet K.
Patent GB-1509023-A (GB)
Title: Septal defect closure apparatus
IPC: A61M25/00
Filed: 1975-03-25
Abstract: 1509023 Septal defect closure apparatus ALTON OCHSNER MEDICAL FOUNDATION 25 March 1975 12475/75 Heading A5R One or more collapsible umbrella - like closure elements 308 are used for the closure of septal defects in the body, e.g. 'the heart, each element comprising struts 381 mounted radially about a central hub and having material 382 secured to said struts, the element being collapsible so that the struts may lie generally parallel to the hub axis for transport through a catheter assembly to or through the septal hole. The struts 381 are biassed open by a spring ring 397. The hubs of two elements may be locked together by a "snap fastening" to secure them in place. Alternatively, a single closure element may be used which is held in position by a guide wire until the element has been incorporated into the tissue structure. In an alternative embodiment, Fig. 12 (not shown), the struts are biassed open by their own resilience and are provided with barbs on their outer ends.
Patent GB-1129773-A (GB)
Title: Improvements in and relating to magnetic materials
Inventor: KIROTA HOZUMI
IPC: H01F1/147
Filed: 1967-03-16
Abstract: 1,129,773. Cobalt alloys. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. March 16,1967 No.12493/67. Heading C7A. A ferromagnetic material with a crystal structure belonging to space group Fm3m consists, in atomic per cent, of Co 51-59 Mo 0.017-1.03 Al 6À5-11À2 B 17-25À9 Fe balance. Preparation may be effected by melting or powder metallurgically: in the latter case, the constituents are first pressed to shape at a pressure greater than 500kg/cm<SP>2</SP> and then sintered at 800‹-1000‹C in air, vacuum, or a non-oxidising atmosphere such as argon at 10<SP>-2</SP>-10<SP>-6</SP> mm Hg. The material is suitable for use in the manufacture of heads for video tape recorders.
Patent GB-234117-A (GB)
Title: A padlock with an alarm attachment
IPC: E05B45/04
Filed: 1925-05-14
Abstract: 234,117. Vadnay, F. von. May 15, 1924, [Convention date]. Padlocks, co-operating with burglar alarms.-A padlock has a hollow shackle in which is contained a thread-like detonating cartridge anchored at its ends to the casing so that attempts to force the shackle from the casing result in an explosion which gives the alarm. The shackle may be hinged, pivoted or sliding. Fig. 1 shows a sliding shackle b secured in the cylindrical casing a by a bolt c which is inserted and removed by a key d. The bolt engages recesses in the limbs of the shackle and one and of the bolt is rotatable relative to the rest of the bolt so that the key can turn the feather e to prevent removal. A projection l is provided in the other end of the bolt to prevent that end dropping out if the casing and bolt are sawn through. A cartridge f is threaded through the hollow shackle and has eyes h through which passes the bolt c. Attempts to prise off the shackle or saw through it, result in the detonation of the cartridge. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the provision of additional explosive packings i which increase the force of the explosion to the extent of injuring the tamperer. This subject-matter does not appear in the Specification as accepted.
Patent GB-770451-A (GB)
Title: Improvements in or relating to closures for bottles and the like
IPC: B65D55/16
Filed: 1954-04-30
Abstract: 770,451. Stoppers. TOWNS, E. J., and THAPAR, M. R. April 30, 1954, No. 12603/54. Addition to 661,158. Class 125(3). A modification of the stopper of the parent Specification has a removal tab 28 extending radially outward from the cap and it is retained against loss by a tab 34 terminating in a loop 36 engaging the bottle neck and upon which the outer skirt 16 may sea,l an annular series of openings 23 in the outer skirt communicating with the interior of the closure without penetrating the exterior part of the skirt.
Patent GB-167553-A (GB)
Title: Improvements in and relating to fluid control devices
IPC: F24H9/20
Filed: 1920-05-06
Abstract: 167,553. Rouse, E. E. May 6, 1920. Fluid-actuated fuel valves for waterheaters.-A valve device particularly applicable for controlling the water and gas supplies to water-heaters comprises a casing closed at each end by covers and containing two superimposed chambers, one containing the valve member and the other its actuating diaphragm. The valve member k and actuating diaphragm l are mounted on a common spindle d guided by sockets formed in a bridge e and cover g. The chamber at the back of the diaphragm communicates with the gas passage j through an aperture n adapted to be closed by a valve-like sealing member m in the event of the diaphragm breaking. In a modification, the chamber at the back of the diaphragm communicates with the atmosphere. The inlet and outlet to the diaphragm chamber may be regulated by flat and tapered lift valve members mounted on a common screw-actuated spindle, so as to vary the quantity of water flowing.