baber/WOPTO huggingface dataset:
Patent GB-208730-A (GB)
IPC: H04B1/12
Filed: 1923-12-21
Abstract: 208,730. Soc. Franþaise Radio-Electrique. Dec. 21, 1922, [Convention date]. Addition to 190,505. Atmospherics and undesired signals, eliminating; multiplex and directive signalling. - In a system for eliminating the effect of atmospheric disturbances and undesired signals from neighbouring stations, of the kind set out in the parent Specification, the group of highly damped resonators preceding the limiting device is replaced by a resonator 24, 25 which is tuned to the disturbing station, and is associated with an amplifier 26. The circuit 24, 25 is energized from the aerial through a relay valve 22. The disturbances will therefore appear in the plate circuits of the amplifiers 26, the latter being coupled directly by the aerial. They are then balanced out by suitably opposing the transformers 6, 7 and adjusting the coupling between the coils 23, 24. A number of interfering signals may be similarly eliminated by using several resonators 24 - - 24<11>, forming a filter circuit, as shown in Fig. 2, each tuned to the frequency to be removed. Such an arrangement may also be used for the simultaneous reception of several signals, each signal being subsequently led through a separate series of resonator valve circuits, such as 13, 14, 13<1>, 14<1> shown in Fig. 1. tuned to the frequency of the particular signal in question. The method may also be used in conjunction with Beverage or other directional aerials. For instance in Fig. 5, signals from B1 and B2 are suppressed by the directional effect, whilst those from B3 and B4 are eliminated by the' differential circuits of the invention, leaving those from E to be received free from interference. The resonators 13, 14, Fig. 1, may be provided with an automatic damping arrangement such as that described in Specification 223,267.
Patent GB-325195-A (GB)
Title: Improvements in signs
IPC: G09F13/16
Filed: 1928-11-05
Abstract: 325,195. Martin, A. M., and Allan, W. Nov. 5, 1928. Name and number plates.-A sign for advertising, decorative, and other purposes comprises a rear sheet of glass having a plane or roughened front face and a front sheet of glass having one or both faces roughened, the sheets being arranged so that at least one of the adjacent surfaces is roughened. As shown in Fig. 2, a transparent glass sheet 8, having a smooth face 9 and rough face 10, is combined with a glass reflector 11 having a smooth silvered face 12 and a roughened face 13. Either face 9 or 10 may bear the advertising or decorative matter. According to the second Provisional Specification, the sign may comprise a glass sheet smooth on one side and roughened on the other, the smooth side being silvered and the rough side bearing the advertising matter or the like. Reference has been directed by the Comptroller to Specification 316,349.
Patent GB-1218738-A (GB)
Title: Improvements in or relating to containers such as egg boxes
Inventor: EDWARDS STANLEY JOHN FREDERICK
IPC: B65D85/32
Filed: 1967-07-13
Abstract: 1,218,738. Clips. BRITISH PETROLEUM CO. Ltd. 27 June, 1968 [13 July, 1967], No. 32209/67. Heading E2B. [Also in Division B8] The base section of, e.g. an egg box, has a cover hinged to one side and at least one locking flap hinged to the other which overlies the cover and has a projection engaging a recess in the cover. The locking flaps can be on the long or short side of the box which is made from foamed polystyrene.
Patent GB-185996-A (GB)
Title: Improvements in and relating to toasting devices
IPC: A47J37/06
Filed: 1921-12-01
Abstract: 185,996. Berthon, W. H. M., and Hough, J. E. Dec. 1, 1921. No Patent granted (Sealing fee not paid). Toasting-apparatus. - A device for toasting bread, muffins, &c. comprises a stand a, with a parallel upright member b having a slidable member d friction-tight thereon, and fitted with prongs f for the bread &c. The slidable member, as shown in Fig. 3, comprises a cross-bar d with backing-strip g secured to it and enclosing a friction spring h. The prongs may be ordinary rails with their heads soldered to the carrier bar and to a backing strip. In a modification Figs. 4 and 5, the slidable member comprises a sliding clip i with a tubular shank k, through which passes a wire support bent to form a central journal with a handle e at one and and a support l for a pair of swinging prongs at the other end, the bread &c. being thus reversible by turning the handle e.
Patent GB-892580-A (GB)
Title: Improvements in or relating to internal combustion engine powered pile drivers or rammers
Inventor: LANG ANTON
IPC: E02D7/12
Filed: 1960-09-20
Abstract: 892,580. Paviours and rammers. DORNFELD, R., and DORNFELD, E. Sept. 20, 1960 [Oct. 14, 1959], No. 32235/60. Class 107 [Also in Groups XXIII and XXVII] A Diesel engine powered rammer comprises a shouldered piston 2, Fig. 2, guided in a rammer body 1, in which air drawn into the recess portion 5<SP>1</SP> through a one-way valve 11 passes through another one-way valve into a piston storage chamber 14 which communicates at the end of the combustion stroke with a transfer duct 8 to give additional scavenging at the end of the following combustion stroke. The second oneway valve may be a spring-loaded annular ring 13, Fig. 3, which communicates with the storage chamber 14 through radial holes 16. Charge air is drawn into the transfer duct and combustion chamber 3 through valves 10 by the piston 2 during the combustion stroke air also being drawn in through valve 11 into recess 5<SP>1</SP>. At the same time air in recess 5<SP>11</SP> duct 8 and space 6 is compressed until a port 7 is cleared by the piston to admit scavenge air to the chamber 3. Further piston movement aligns the shoulder 4 with the duct 8 to allow stored compressed air in chamber 14 to assist scavenging. An air cushion is formed below the piston shoulder part 4<SP>1</SP> in the space 5 <SP>11</SP> at the end of the combustion stroke.
Patent GB-1389624-A (GB)
Title: Web fed rotary offset printing machine
IPC: B41F7/02
Filed: 1973-07-06
Abstract: 1389624 Web-fed rotary printing machine AUTOMATIC DRUCKMASCHINENFABRIK DR W HINNIGER U SOHNE 6 July 1973 [8 July 1972] 32246/73 Heading B6C A web-fed rotary offset printing machine, Fig. 2, has printing units 7 slidably mounted one above the other in a printing unit stand 3, the printing units comprising forme cylinders 8, offset cylinders 9 and an inking system and the printing unit stand being slidable toward and away from a machine frame 1 in which impression cylinders 13 are mounted, and drive shafts 21 for each printing unit which are longer than the total extent to which a printing unit can be moved away from its associated impression cylinder and splined so that it can drive the printing unit continuously whilst the unit is being moved and in its furthest position. A clutch 24 is provided to allow disengagement of the drive and to re-engage it in one orientation of the printing unit cylinders with the impression cylinder.
Patent GB-224114-A (GB)
Title: Improvements relating to the manufacture of paving and like blocks
IPC: E01C5/22
Filed: 1923-12-27
Abstract: 224,114. Frood, H., and Ferodo, Ltd. Dec. 27, 1923. Compound blocks.-Rubber-faced paving blocks consist of a plurality of plies of cemented asbestos sheet brought together while wet, and consolidated by pressure and drying into a single piece, the upper ply before pressure being formed with tapered holes a to receive portions b of the rubber facing c. The upper surface of the rubber mav have a chequered or other non-skid pattern, and the rubber block may be formed in a two-layer form, the upper layer being the harder.
Patent GB-952650-A (GB)
Title: Improvements in electrical signal amplifiers
IPC: H03F3/28
Filed: 1961-09-11
Abstract: 952,650. Valve amplifying circuits. I. B. JOCE, and R. A. BERESFORD. Sept. 29, 1961 [Sept. 11, 1960], No. 32445/61. Heading H3W. A push-pull amplifier comprises a pentode first stage V1 direct-coupled to one valve V2a of a long-tailed pair V2a, V2b, the anodes of which are in turn direct-coupled to the grids of output valves V3, V4. The grid of the second valve V2b of the long-tailed pair is earthed for A.C. by means of capacitor C5 and obtains a D.C. bias from the anode of valve V1 over resistor R9. According to the invention, the anode voltage supply for the first stage V1 and the long-tailed pair V2a, V2b is obtained from the cathode circuit resistor R10 of the output valves, which is decoupled by capacitor C4b. The anode loads of the long-tailed pair V2a, V2b comprise a potentiometer VR4, the voltage drops across which provide grid bias for the output valves V3, V4, balancing of output currents being performed by adjustment of the potentiometer. Overall negative feed-back is applied from the secondary of the output transformer T1 to the cathode of the first stage V1 via resistors RFB, R6, R5 and R3. Resistancecapacitance network VR5, C6 provides by adjustment of VR5 for variable treble cut, while network VR2, C3 controls, by adjustment of VR2, bass cut.
Patent GB-1260985-A (GB)
Title: DEW DERIVATIVES OF p-HYDROXY-PHENYLBUTAZONE
IPC: C07D231/36
Filed: 1970-07-03
Abstract: 1,260,985. Phenylbutazone derivatives. DAUSSE S.A. 3 July, 1970 [3 July, 1969], No. 32462/70. Heading C2C. Novel compounds I and their salts  in which n is 1-4 and B is an n-valent radical formed by removal of nH from the secondary amino group of an amine containing n secondary amino groups, the said amine being aliphatic saturated or unsaturated with straight or branched chains, alicyclic or heterocyclic with one or more N atoms; are prepared by reaction of B(CH 2 OC 2 H 5 ) n  with p-hydroxyphenylbutazone. Pharmaceutical compositions, useful as antiinflammatory, analgesic and antipyretic agents when administered orally, rectally or percutaneously, comprise a compound I together with a suitable carrier and/or diluent.
Patent GB-764690-A (GB)
Title: New sensitizing dyestuffs of the merocyanine series and their manufacture and use
IPC: C09B23/10
Filed: 1953-11-23
Abstract: Pyrrolidine derivatives of the general formula <FORM:0764690/IV(b)/1> wherein R3 is a methyl, ethyl, allyl cyclohexyl, or benzyl group are obtained by treating succinic acid mono-ethyl ester amides of the formula C2H5OCO.CH2-CH2CO.NHR3 in boiling benzene or toluene with phosphorus pentasulphide.  The corresponding compound where R3 is phenyl is stated to be known.  Succinic acid mon-ethyl ester amides of the formula above are prepared by reacting amines of the formula R3NH2 with succinic acid mon-ethyl ester chloride.ALSO:Dyes of the following general formula are described:-<FORM:0764690/IV(b)/1> wherein R1 represents an alkyl group, R3 is a methyl, ethyl, allyl, cyclohexyl, phenyl or benzyl group and Z completes a heterocyclic nucleus such as dihydroquinoline, pyrrolidine, indoline, thiazolidine, 2.3 dihydrobenzthiazole, 2.3 dihydrobenzoxazole or 2.3 dihydrobenzselenazole.  The carbocyclic rings of such nuclei may be substituted with alkyl, alkoxy or aryl groups.  The dyes may be prepared by condensing a compound of the formula <FORM:0764690/IV(b)/2> wherein R2 is =O or =N-C6H5 with a 2-thioketo-5-keto-pyrrolidine having an R3 substituent on the N atom. The condensation may be carried out in pyridine as solvent, using a condensing agent such as piperidine.
Patent GB-159701-A (GB)
Title: Feeding mechanism for sewing machines
IPC: D05B27/02
Filed: 1919-12-29
Abstract: 159,701. Fairweather, W., (Singer Manufacturing Co.). Dec. 29, 1919. Sewing-machines; feed by dogs.-The feed-rock shaft 44, Fig. 2, is oscillated by an eccentric 39, Fig. 4, and rod 40 adjustably connected to a slotted arm 43 fast on the shaft and to which the feed-bar 19 is pivoted at 45. The slide-block 41 is engaged by the forked end of an arm 46, Fig. 4, pivoted on the shaft 4. A forward extension 50 of the arm carries a handle 56 having pins 59 which, when the arm has been adjusted, enter sockets 55 and lock the arm in place. Vertical movements are imparted to the feed-dog by means of an upright link 31 pivoted to the feedbar at 33 and to an eccentric-rod 26 at 30. The pivot-pin 30 is guided in a slot in a revolubly adjustable head 28 and the inclination of the slot determines the lift given to the feed-dog. The pin 33 extends through a long boss which projects laterally from the feed-bar and to accommodate this the eccentric rod 26 and the link 31 are cranked, the off-set upper part of the link 31 being guided by a plate 38. The feed-dog is secured in a block 16 adjustable upon the feedbar, and fine adjustment of its position is effected by a screw 22. The feeding-surface is gouged out in the line of the seam and has two prongs standing above the general serrations which insure against slip of the work.
Patent GB-1470873-A (GB)
Title: Blends of polyesters and dicarboxylic acids
IPC: D06M15/507
Filed: 1974-07-23
Abstract: 1470873 Sizing EASTMAN KODAK CO 23 July 1974 [23 July 1973] 32508/74 Heading D1P [Also in Division C3] A hot melt size composition comprises a blend of (I) from 60 to 95 weight %, based on the composition of a linear water-dissipatable polyester derived from (a) a dicarboxylic acid free from sulphonic acid or metal sulphonate groups, (b) a diol component, at least 20 mole % of which is a polyethylene glycol having 2 to 14 repeating units, and (c) a dicarboxylic acid containing a -SO 3 M group attached to an aromatic nucleus, therein M is hydrogen, Na<SP>+</SP>, K<SP>+</SP> or Li<SP>+</SP>, (c) constituting 8 to 45 mole % of the sum of (a) and (c), and (II) from 5 to 40 weight %, based on the composition, of a saturated aliphatic or cycloaliphatic dicarboxylic acid having 6 to 12 carbon atoms. The composition may contain an antioxidant and a plasticizer, e.g. ptoluenesulphonamide. The Examples describe sizing polyester/cotton spun yarns with compositions comprising (I) polyesters derived from (a) one or more of the following:- isophthalic acid, terephthalic acid, hexahydroisophthalic acid, hexahydroterephthalic and adipic acid, (b) di- or tri-ethylene glycol, optionally with ethylene glycol or 1, 4-cyclohexanedimethanol, and (c) dimethyl 5-sodiosulphoisophthalate, 4-sodiosulphophenyl-3, 5- dicarboxybenzene sulphonate, 5-[4-sodiosulphophenoxy]isophthalic acid or 2(2'-sodiosulphophenyl)-2-ethylmalenic acid, and (II) the following acids:- adipic, suberic, azelaic, sebacic or 1, 12-dodeconedioic acid.
Patent GB-175418-A (GB)
Title: Improvements in and relating to the connecting up of electric conductors, and to devices in which connecting up of electric conductors is required
IPC: H02G3/20
Filed: 1921-05-13
Abstract: 175,418. Lomax, R. May 13, 1921. Ceiling - roses ; sleeve couplings. - Ceiling - roses and like devices have one or more apertures in the base-piece for the wires d leading to the fitting and another aperture or apertures e through which both feeding and outgoing wires pass, the wires being secured together in pairs at the ends of the last-mentioned apertures, preferably by metal pieces g into which they are threaded and which are then crushed upon the wires. The strain upon the wires d is taken by the binding action between the ceiling rose and the pattruss j when the former is screwed, in place.
Patent GB-506394-A (GB)
Title: Improvements relating to the electrolysis of salt solutions
IPC: C25B15/08
Filed: 1937-11-25
Abstract: 506,394. Electrolysis of alkali chlorides. 1. G. FARBENINDUSTRIE AKT.-GES. Nov. 25, 1937, No. 32519. Convention date, Dec. 31, 1936. [Class 41] Salt solutions containing chlorine and alkali hypochlorite and obtained in the electrolysis of alkali chloride, more especially by the amalgamation process, are treated with an acid such as hydrochloric acid outside the cell to decompose the hypoclilorite, blown out and/or subjected to reduced pressure, and treated with fresh alkali chloride. The acidification and blowing out may be combined by blowing out with a gas which dissolves to form an acid, such as carbon dioxide. A reducing agent may be added, such as sulphurous acid or its salts or hydrogen sulphide, to eliminate residual chlorine or chlorate, and sulphurous acid is preferably used at above 50‹ C. Iron, manganese and calcium salts as well as sulphates may be precipitated by the addition of hydroxides, carbonates, and barium compounds such as barium carbonate. When the chlorine evolved contains hydrogen, this is converted to hydrogen chloride, and the residual chlorine is washed free of hydrogen chloride with the salt solution to be resaturated, which is thereby acidified.
Patent GB-1158778-A (GB)
Title: Microwave Band Filter
Inventor: REITER GYORGY
IPC: H01P1/209
Filed: 1966-07-20
Abstract: 1,158,778. Microwave filters. TAVKOZLESI KUTATO INTEZET. 20 July, 1966 [20 July, 1965], No. 32682/66. Heading H1W. A microwave band-pass filter uses cylindrical cavities of the TE 011  wave-mode type having input and output apertures in mutually perpendicular radial planes. As shown, two TE 011  cavities are coupled to each other and to cavities 9, 10 (also forming sections of the filter) by apertures 22, 23, 24, the coupling being varied by means of rods 35, 36, 37 and the cavities being tuned by means of axiallymovable dielectric discs 32 with conductive peripheries 33. The cavities 9, 10 are coupled to input and output rectangular waveguides by apertures 5, 6. These cavities may be cylindrical TE 111  cavities or rectangular TE 102  cavities, the condition of selection being that they should have only one resonance mode within the pass band of the filter. The effect of the unwanted TE 311  mode in cavities 20, 21 is reduced by means of an adjustable co-axial stub 25, 26 which couples energy in this wave-mode to a dissipative member 28. The filter is constructed in such a way, evident from the drawings, that it can be readily assembled using nuts and bolts.
Patent GB-504477-A (GB)
Title: Improvements in and relating to mechanical interlocks for electric switches, and the like
IPC: H01H9/26
Filed: 1937-11-27
Abstract: 504,477. Actuation of switches; toggles. IGRANIC ELECTRIC CO., Ltd., and WRIGHT, S. R. Nov. 27, 1937, No. 32788. [Class 38 (v)] [Also in Group XXIV] A motor controller has an operating shaft 3 connected by a link 12 to a handle 10 pivoted at 11 to a casing 13 rotatable on a fixed cylinder 16, which is longitudinally slotted at 17 to allow movement of lever 10 about pivot 11 when in the neutral position. Circumferential slots 19, 20 allow the handle to be moved to rotate casing 13 and spindle 3 when in the central and left positions. In the application described, the position of lever 10 in Fig. 1 is such as to move spindle 3 to the extreme right for reversing or plugging. When handle is moved to the central position opposite slot 20, it can be moved to turn shaft 3 left or right to obtain two speeds. Lever 10 can also be moved through the neutral position in slot 17 until it is opposite slot 19 when it can be turned to obtain two further speeds. The connection of the shaft 3 to the control switches (not shown) is shown in Figs. 4-6. Shaft 3 is connected by a pair of toggle links 4, 5 to a shaft 1 carrying the speed selecting switches, and movements of shaft 3 are transmitted directly to shaft 1 to effect changes of speed. Fig. 4 shows the left position of shaft 3 and Fig. 5 shows the central position. This is the limiting position for shaft 1 and if the handle is moved to the position of Fig. 1, the shaft 3 moves to collapse the toggle 4, 5 and depress a lever 6 to turn a shaft to operate the reversing or plugging switch (not shown). Specification 463,293 is referred to.
Patent GB-658508-A (GB)
Title: Improvements in and relating to the treatment of metals
IPC: C21C7/00
Filed: 1949-12-22
Abstract: A calcined porous rocky basic material, e.g. limestone or dolomite is impregnated with one or more alkaline metal compounds, e.g. potassium or sodium compounds, and used to deoxidize and to remove sulphur and phosphorus from metal, especially steel.  The pieces of the rocky material are preferably 30-80mm in diameter.  They may also be used coated with hydrocarbons, or with other substances used in the manufacture of steel, such as pieces of calcined limestone impregnated with hydrocarbons, e.g. pitch or bitumen.
Patent GB-653810-A (GB)
Title: Coupler for joining of two tubes or structural elements of circular or other cross section
IPC: E04G7/18
Filed: 1947-12-12
Abstract: 653,810. Scaffolding clamps. VALENTA, O. Dec. 12, 1947, No. 32813. Convention date, May 2, 1946. [Class 20(ii)] In a U-bracket clamp 1 embracing one tube 2 and terminating in hookedshaped portions 8 supporting a second tube 3, a clamping screw 5 passes freely through the central part of the bracket and engages a nut 6 held against turning by the bracket and applies pressure on the tube 2 by means of a saddle piece 4 guided in slots in the bracket. A further insert 7 is provided in the hook portions 8 and the axis of the screw 5 is eccentric with respect to the axis of the tube 3. The Specification as open to inspection under Sect. 91 comprises also scaffolding joined together by clamps which may be provided with stepped or bayonet clutch slots to accommodate the saddle piece. This subject-matter does not appear in the Specification as accepted.
Patent GB-378724-A (GB)
Title: Improved penholder attachment for ejecting nibs from pens
IPC: B43K13/00
Filed: 1931-11-23
Abstract: 378,724. Pens. EDWARDS, J., 91, 0'Hara Street, Invercargill, New Zealand. Nov. 23, 1931, No. 32877. [Class 146 (iii).] A penholder A is formed with a means for ejecting the nib comprising a sliding sleeve D which has a downwardly-projecting tongue E engaging in a slot B in the holder A. The nib, which is held between the V-shaped projections C and the wall of the holder A, is ejected by sliding forward the sleeve D, when the tongue E engages behind the end of the nib and effects its ejection. The usual slit F is provided in the holder A, but is formed on the top of the holder, and the slot B is a continuation thereof. Reference has been directed by the Comptroller to Specification 16901/04, [Class 146, Writing instruments &c.].