baber/WOPTO huggingface dataset:
Patent GB-563873-A (GB)
Title: Improvements relating to instruments for use in graphical plotting
IPC: G06G1/00
Filed: 1943-04-21
Abstract: 563,873. Protractors. JOHNSON, B. K. April 21, 1943, No. 6428. [Class 97 (iii)] An instrument for plotting the path of a ray of light which is refracted in passing from one medium to another, comprises a sheet of celluloid a or the like, two. scales c, c<1> riveted thereon as shown and two sliders d, d<1> arranged to slide along the edges of the scales c, c<1> and to be clamped in adjusted positions by means of nuts e, e<1>. The scales c, c<1> are marked respectively in refractive indices and the reciprocals thereof, a line b is marked on the sheet a, a perforation A is provided on the line b at a point which represents the zero of the refractive indices scale while perforations B, C are provided on the slides d, d<1>, pointers k, k<1> being also provided. Fig. 3 shows the method of use, the line l represents the boundary line of the two media and SN the normal thereto and it is required to plot the refracted ray NR of the ray PN. The sheet a is placed as shown in dotted lines, the perforation A being placed on the normal SN at a distance equal to unity on the refractive index scale, and a needle passed through the perforation A 'into the drawing paper. The slide d is moved until the pointer k indicates the refractive index of the medium into which the ray is to pass and the slide d clamped. The slide d<1> is similarly moved on the reciprocal scale and clamped. The sheet a is then swung round into the full line position until the perforation B is on the ray PN, then the line CN produced gives the refracted ray NR. In another form, the device is arranged as a set-square.
Patent GB-205459-A (GB)
Title: Improvements in or relating to coking retort ovens
IPC: C10B5/04
Filed: 1923-03-06
Abstract: 205,459. Becker, J. Oct. 13, 1922, [Convention date]. Drawings to Specification. Coke ovens.-In a coke oven of the kind described in Specification 171,117, in which vertical flues in the heating-walls in opposite sides of an oven are connected by horizontal header flues and a cross-over flue, the vertical flues are so grouped that the heating of the end sections of the oven can be controlled independently of that of the middle section. In the oven described there are five groups of flues in each heating-wall, and the cross-over flues are uniformly spaced along the length of the oven. The regenerator and gas supply arrangements are substantially identical with those of Specification 171,117.
Patent GB-397919-A (GB)
Title: Improvements in surgical pads and the like
IPC: A61F13/15
Filed: 1932-03-03
Abstract: 397,919. Surgical pads ; catamenial appliances. ROBINSON & SONS, Ltd. and ROBINSON, V. O., Wheat Bridge Mills, Chesterfield, Derbyshire. March 3, 1932, No. 6470. Drawings to Specification. [Class 81 (ii).] Surgical pads and sanitary towels are obtained by rolling a sheet comprising a plurality of layers of absorbent material, preferably cellulose crinkled paper, and flattening the roll so formed so as to obtain a pad having a greater thickness at the middle than at the sides. Alternate individual layers forming the sheet are preferably set back at the sides relative to the adjacent layers so that the pad tapers towards its ends. The thickness of the sheet should be less than one-third and is preferably one-eighth of that of the central part of the pad. The pads may be made by the machine disclosed in Specification 397,920.
Patent GB-415786-A (GB)
Title: Improvements in or relating to endless track vehicles
IPC: B62D55/108
Filed: 1933-03-03
Abstract: 415,786. Endless - track vehicles. GARRETT ENGINEERING WORKS, Ltd., R., Leiston, Suffolk, FAY, S. E., Hµremai, Chipstead, Surrey, and SMITH, C. St. V., Fourways, Haylings Road, Leiston, Suffolk. March 3, 1933, No. 6491. [Class 79 (i).] The load-carrying wheels or rollers w<1>, w<2> are arranged in tandem pairs mounted in beams a, each beam rocking about a spring- mounted axle b on the main frame and being capable also of bodily vertical movement relatively to the axle. In the construction shown, each beam a has the rollers mounted on spindles e at its ends, and is formed with a central vertical slot s sliding over a bush c<1> on the axle b which extends right across the vehicle. Bearing bosses c are mounted on the axle on each side of the beam and have flanges c<2> sliding vertically against the faces of the beam. Laminated springs d are secured to the bosses c and their ends are connected to the roller spindles e by adjustable shackles d<3>. In a modification, the bearing bosses c are connected to the beams a by a number of vertical coil springs arranged in pockets in the bosses and bearing against horizontal flanges on the beams, so that a bodily upward movement of the beams compresses the springs.
Patent GB-163519-A (GB)
Title: A process for separating mineral oils or the like from sand or rock
IPC: C10G1/04
Filed: 1920-03-03
Abstract: In the separation of bitumen or mineral oil from rock or sand impregnated therewith, the sand &c. is treated with an aqueous solution of (1) substances promoting the formation of froth such as alkali soaps, turkey-red oil, saponin, or glue; (2) alkali salts or hydroxides; or (3) dilute acids; the bitumen or oil separates and rises to the surface or sinks to the bottom or forms an emulsion. The oil &c. is then separated by a washing process. Heat may be applied to render the oil or bitumen fluid, or a p  solvent such as paraffin oil added.
Patent GB-1416372-A (GB)
Title: Circuit for creating a saw-tooth waveform current in a coil
IPC: H03K4/08
Filed: 1973-02-09
Abstract: 1416372 Protecting time base circuits P METZ 9 Feb 1973 [9 Feb 1972] 6528/73 Heading H3T [Also in Division H2] In a circuit for generating a sawtooth current in a coil for deflection or high voltage generation purposes in which a diode and thyristor combination 8, 9 is conducting during the stroke and a further diode and thyristor combination 11, 12 is conducting during the flyback, means are provided for preventing the thyristor 8 from being fired when the voltage across it exceeds a given value. It is explained that a false triggering pulse at a part of the cycle when the voltage is high or normal triggering when, due to a winding breaking, the voltage is high, would cause damage to the thyristor. Accordingly part of the voltage derived from a potentiometer 23, 24, 25 is used to cause the firing pulses to be short-circuited through a transistor 21 if the thyristor voltage is excessive. Capacitor 27 compensates for the input capacitance of transistor 21.
Patent GB-230827-A (GB)
IPC: C22C11/02
Filed: 1925-03-10
Abstract: 230,827. Metallbank und Metallurgische Ges. Akt.-Ges. March 12, 1924, [Convention date]. Alloys.-Lead alloys for bearings contain less than 1 per cent of lithium and less than 1 per cent each of one or both of the metals sodium and potassium, and are free from mercury. An example contains up to 0.8 per cent each of potassium and sodium and up to 0.1 per cent of lithium. Up to about 5 per cent of one or more other elements, such as copper, nickel, cobalt, zinc, magnesium, strontium, calcium, phosphorus, and sulphur, may also be present. The Specification as open to inspection under Sect. 91 (3) (a) states also that mercury also may be present. This subject-matter does not appear in the Specification as accepted.
Patent GB-1070362-A (GB)
Title: Novel dibenzocycloheptatriene derivatives and a process for their manufacture
IPC: C07C61/39
Filed: 1965-02-16
Abstract: Novel compounds of the Formula I, wherein X represents an oxygen atom, Y represents a group of the formula -NPQ, wherein P and Q, taken individually, each represent a hydrogen atom or a C1- 7 alkyl, phenyl-C1- 7 alkyl, pyridyl-C1- 7 alkyl, or di-(C1- 7 alkyl)amino-C1- 7 alkyl group or, taken together with the nitrogen atom to which they are attached, represent a five- or six-membered heterocyclic ring which may be lower alkyl substituted or may contain an oxygen atom or a second nitrogen atom in the ring (which latter nitrogen atom may carry a lower hydroxy alkyl or a halobenzyl group), and Z represents an oxo group (which may be ketalized with a lower alkanol or a lower alkylenediol) or a lower alkylidene group, and acid addition salts of those compounds which are basic, are prepared by reacting an acid of the Formula II or a functional derivative thereof, with an amine of the formula H-Y, if desired ketalizing a so-obtained ketone or reacting it with a lower alkyl magnesium halide and hydrolysing and dehydrating the reaction product or, if desired, converting a so-obtained ketal into a ketone, and, where required, converting any resulting basic compound into an acid addition salt. <FORM:1070362/C2/1> and <FORM:1070362/C2/2> 5 - Methylene - 10 - chlorocarbonyldibenzo[a,d] -cyclohepta[1,4,6]triene may be prepared by reacting 10 - bromodibenzo[a,d]cycloheptatrien-5-one with methylmagnesium iodide to give 5 - hydroxy - 5 - methyl - 10 - bromodibenzo[a,d]cyclohepta[1,4,6]triene, dehydrating the latter, treating the resulting 5-methylene-10 -bromodibenzo[a,d]cyclohepta[1,4,6]triene with magnesium and reacting the resulting Grignard compound with carbon dioxide to give 5-methylene-10 - carboxydibenzo[a,d]cyclohepta[1,4,6]triene which is chlorinated to give the desired product.  Therapeutic compositions with antidepressant properties, which may take the form of tablets, dragees, suppositories, solutions, emulsions or suspensions, for oral, parenteral or topical application, comprise compounds of the Formula I or an acceptable acid addition salt thereof together with a suitable carrier.
Patent GB-740914-A (GB)
Title: Improvements in or relating to butter and like spreading machines
Inventor: HOMEWOOD ROBERT WILLIAM
IPC: A21C15/00
Filed: 1953-03-10
Abstract: 740,914. Buttering bread. ABDELA, F., MOSS, B. N. C., and BINSTED, A. T. E. June 4, 1954 [March 10, 1953], No. 6605/53. Class 28(1). [Also in Group XXX] Butter or the like is picked up by perforations in a foraminous carrier and is ejected on to bread or the like by a series of projections, carried on a roller, which mesh with the perforations. A roller 24 with tapered teeth 32 is manually rotated by a handle 30 which also turns a sprocket 27. A conveyer belt 40 is carried on drums 44, 45 and is driven by sprocket 27 through a sprocket 50, rotatable with drum 44, which with sprocket 27 is engaged by a chain 51, Fig. 3. Conveyer belt 40 is made of rubber sheet with moulded spikes on one side. The teeth 32 engage perforations in a cylinder 35 which encloses roller 24 and is supported on an arcuate bearing block 36. A weight 39 presses butter contained in a hopper 38, mounted above cylinder 35, into the perforations in cylinder 35 as it rotates. Slices of bread are carried on conveyer 40 and the butter is ejected from the perforations onto the bread and is spread partly by the cylinder and partly by spring blades 66. The conveyer belt travels in the opposite direction to the periphery of the cylinder and preferably three to five times as fast. Drum 45 is vertically adjustable to vary the position of conveyer belt 40 according to the thickness of the bread. Movement of the bread is controlled by gauge plate 65. In a modification, belt 40 may be replaced by a table and roller 24 may have toothed flanges to convey the bread under cylinder 35. In a further modification, the butter may be contained within cylinder 35. To prevent waste of butter when no bread is fed to the machine, means may be provided for lifting the ejector roller out of engagement with the cylinder. Instead of a cylinder, a foraminous band or a flat perforated plate may be used.
Patent GB-1537093-A (GB)
Title: Valve in or for a double-piston pump
IPC: F04B7/00
Filed: 1976-02-19
Abstract: 1537093 Valves WIBAU WESTDEUTSCHE INDUSTRIE - UND STRABENBAU - MASCHINEN GmbH 19 Feb 1976 [14 June 1975 12 Dec 1975] 06634/76 Heading F2V A valve in or for a double-piston pump for pumping concrete, comprises a slide 11, Figs. 1 and 3, having at least three longitudinallyextending plane faces defining, as seen in crosssection, at least one included angle of less than 90 degrees. Instead of the triangular form shown, the cross-section of the slide may be of trapezoidal form, Fig. 4 (not shown). The complementary casing has two ports in wall 1 for communication with the pump cylinders 12, two ports in wall 2 for communication with delivery conduit 15 and two ports in wall 3 for communication with a vessel 22 containing the concrete. The slide is provided with two ducts 18 near its ends and an intermediate duct 20, whereby in either end position of the slide one of the pump cylinders 12 is communicated with the vessel 22 and the other cylinder 12 is communicated with the conduit 15. Sealing rings 24 are provided around the ends of the ducts 18, 20. Casing walls 1, 2, 3 are coated with hard silicone rubber.
Patent GB-1468367-A (GB)
Title: Corona discharge detecting device
IPC: H02H7/04
Filed: 1974-02-13
Abstract: 1468367 Testing transformers for corona discharge MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 13 Feb 1974 [14 Feb 1973 (2) 15 Feb 1973 19 Feb 1973 (2)] 6662/74 Heading G1 A pulse generator, particularly an e.h.t. transformer in a television set, is tested for corona discharge by bandpass filtering and amplifying, preferably over the range 4À2 to 50 Mc/s, either the main output signal, Fig. 2c, or the output signal across a supplementary winding Fig. 2a, and by displaying the resulting signal on an oscilloscope having its x-deflection synchronized with the signals driving the generator. In this way corona discharges cause transitory random signals on the oscilloscope, while the high frequency components of the non-corona signals all appear continuously and stationary on the oscilloscope.
Patent GB-573729-A (GB)
Title: Improvements relating to bearings
IPC: F16N7/18
Filed: 1942-05-16
Abstract: 573,729. Lubricating. TECALEMIT, Ltd., and LE CLAIR, C. C. S. May 16, 1942, No. 6663. [Class 12 (iii)] The centrifugal flow of lubricant in a housing revolving on a fixed shaft is diverted to the bearings by means of a wide fin or vane secured to the shaft and projecting into the body of oil. A reduced part 2A of the shaft carries a wide strap in two parts 30, 31 secured by bolts and having flanges 32, 33 which form fins projecting into a recess in a sleeve 5 fixed to the housing. This sleeve recess has apertures 26, 27 communicating with the reservoir 16, ducts 16A being provided in the sleeve flange 5B to admit oil to the shaft end-thrust bearing. The number of the straps or fins may be varied.
Patent GB-192948-A (GB)
Title: Improvements in water tube boilers
IPC: F22B17/02
Filed: 1922-03-07
Abstract: 192,948. Babcock & Wilcox, Ltd., (Babcock & Wilcox Co.). March 7, 1922. Water-tube boilers.-Relates to water-tube boilers comprising a bank of inclined and staggered water tubes 2 connecting front and rear water compartments 3, 4, a plurality of rows of water tubes below said bank exposed to the radiant heat of the furnace and having the tubes in the lowermost row 8 situated directly under the corresponding tubes in the next row above, and a roof baffle 15 extending longitudinally of the tubes above the lower tubes and having an upwardly extending baffle 16 arranged at its inner end, and consists in the provision of a furnace 12 fitted with double-firing mechanism comprising underfeed stokers 13, 14 projecting upwardly from the opposite front and rear ends of the furnace. The boiler showns is of the Babcock and Wilcox type, and may be fitted with a superheater 19. The number of the lower rows of tubes placed directly over each other may be varied.
Patent GB-651081-A (GB)
Title: Combined closure and dispenser for liquid containers
IPC: B65D47/06
Filed: 1948-03-03
Abstract: 651,081. Liquid - containers ; stoppers. DUNLOP, J. A. M., and OWEN, H. W. W. March 3, 1948, Nos. 6682 and 24899. [Classes 66 and 125(iii)] In a container, e.g. for lighter fuel, drycleaning fluid or lubricating oil, having a reversible spout 24 with a flange 28 on one end which is gripped, in either position of the spout (i.e. as shown in full lines within the container for transit &c. or as in chain lines outside the container for delivering the contents) between an apertured screw cap 14 and the top of the neck of the container, the spout is made of gelatine such as is used) in the manufacture of capsules or of a material having equivalent physical properties so that the flange forms a tight seal when the cap is screwed down. The spout may be pre-perforated, in which case an additional disc 30 is necessary and the perforated end may be screw-threaded. and provided with a screwed cap as in Specification 505,138. Alternatively, the spout may be provided with a pin 32 for puncturing it before use, the pin being initially housed within the spout, and in this case the disc 30 need not be provided. The end of the spout may be thickened. Other shapes of spout are described. Specification 634,192, [Group VI], also is referred to in the first Provisional Specification.
Patent GB-706708-A (GB)
Title: Improvements in or relating to thermionic and secondary emission cathodes
IPC: H01J9/12
Filed: 1951-03-20
Abstract: 706,708. Cathode materials and processing. GENERAL ELECTRIC CO., Ltd., and GREY, L. E. March 17, 1952 [March 20, 1951], No. 6712/51. Class 39(1) A thermionic or secondary-electron-emitting g cathode has a planar part, at least part of which is roughened and coated with a number of layers of electron-emitting material which is then pressed between two smooth planar surfaces. A thermionic indirectly-heated cathode for a cathode-ray tube comprises a cylindrical nickel cup the flat end of which is sand-blasted and coated to a thickness of 0.07 mm. with a number of layers of barium and strontium carbonates in a nitrocellulose binder and compressed at 2 tons per square inch between two smooth surfaces to reduce the coating to a thickness of 0.02 mm.; after activation the coating has a density of 4 gms. per c.c. A roughened secondaryelectron-emitting plate may be similarly produced, the thickness of the coating of magnesium oxide and barium carbonate being 0.04 mms.; the thickness of the oxide coating after activation is 0.01 mms. Specification 706,707 is referred to.
Patent GB-1512753-A (GB)
Title: Hydrazone basic dyes
IPC: C09B26/04
Filed: 1977-01-19
Abstract: 1512753 Basic hydrazone dyes YORKSHIRE CHEMICALS Ltd 19 Jan 1977 [20 Feb 1976] 06738/76 Heading C4P The invention comprises basic hydrazone dyes having the general formula wherein R<SP>1</SP> is OR<SP>7</SP>, NR<SP>8</SP>R<SP>9</SP>, alkylcarbonylamino or alkoxycarbonylamino, R<SP>2</SP> is alkyl, aralkyl, or alkenyl, R<SP>3</SP> is alkyl, aryl, aralkyl or alkenyl, R<SP>4</SP> and R<SP>5</SP> are alkyl, R<SP>6</SP> is H, halogen, alkyl, cycloalkyl, aralkyl, alkoxy, aryloxy, aralkoxy, carboalkoxy or nitro, R<SP>7</SP> is alkyl, R<SP>8</SP> and R<SP>9</SP> are H, alkyl, aryl or aralkyl and X is an anion which renders the dye water-soluble. The dyes are prepared by quaternizing an azo compound of the general formula in an organic solvent or aqueous medium at 25-100‹C in presence of an acid binding agent. The azo compounds are prepared by coupling a diazotized 3-phenyl-4(R')-aniline compound with a 2-methylene-2,3-dihydroindole. The dyes give yellow-blue shades on polyacrylonitrile and its copolymers, tannin-mordanted cotton cellulose acetate, acid modified polyamide and acid modified polyesters by dyeing or printing methods.
Patent GB-585571-A (GB)
Title: Improvements in or relating to the catalytic treatment of hydrocarbons
IPC: C22C38/10
Filed: 1943-04-29
Abstract: A hydrocarbon conversion catalyst is prepared by treating bentonite clay with 45-150 parts of H2SO4 per 100 parts of clay, the acid being diluted to a concentration of 2-60 per cent., and then impregnating with 0.5-10 per cent. of alumina and/or calcium oxide, magnesium oxide, or zirconium oxide. Specifications 324,541, [Class 1 (i)], 396,780 and 483,184 are referred to.
Patent GB-921216-A (GB)
Title: Aircraft take-off safety indicating device
IPC: G05D1/00
Filed: 1959-02-27
Abstract: 921,216. Aircraft instruments. G. L. LANG. Feb. 27, 1959 [Feb. 27, 1958], No. 6857/59. Class 40(1). [Also in Groups XIX, XXXIII and XXXVI] An indicator to show the ability of an aircraft to take off comprises means to provide a signal representing the acceleration of the aircraft while travelling along the runway, and means to modify the indication provided by such signal in accordance with known environmental variables such as air pressure and wind velocity. In Fig. 1, a signal proportional to speed is obtained from a D.C. or A.C. generator 10 on the axle of a landing wheel 11, and differentiated in a C.R. network to give a signal proportional to acceleration. The differentiating network is preceded by a pre-set potential divider and an isolating switch to prevent damage to the meter at the instant of touch-down (Fig. 2, not shown). The acceleration signal is passed to a meter 20 having a scale marked GO/NO GO to show whether or not the acceleration is sufficient to permit take-off. The meter is provided with preset adjustments (a) manually by rack-andpinion 29 to shift the scale to allow for runway length, (b) manually by knob 31 acting on one of the hair-springs of the meter according to wind velocity, and (c) by aneroid capsule 35 acting on another hair-spring or through a potentiometer to displace the pointer in accordance -with air pressure. The form of presentation on the meter may be varied (Figs. 4 and 5, not shown). In a modification (Fig. 6), the velocity signal from the generator is differentiated in a double R.C. circuit 38 and applied to a balanced cathode-follower circuit 39. The correction for wind velocity is applied in the cathode circuit at 41 and the aneroid capsule acts on a potentiometer 40 in the anode circuit. The indicator 20A is then a simple meter connected between the cathodes. The output signal is again differentiated at 43, 44 and amplified to operate a visual or audible alarm through a differential relay 47 if the rate of acceleration should fall abruptly, e.g. due to engine failure or sudden increase of drag due to loss of pressure in a tyre or seizure of a wheel bearing. It is desirable to include safety switches to prevent the circuit from operating unless the flaps are in the correct position for take-off. The C.R. circuit can be short-circuited by a switch, if desired, so that the meter can read velocity instead of acceleration. It is also possible to use an accelerometer to give an acceleration signal directly instead of differentiating a velocity signal. Reference has been directed by the Comptroller to Specification 820,434.
Patent GB-1500529-A (GB)
Title: Etch resistant mask
IPC: G03F7/039
Filed: 1975-02-19
Abstract: 1500529 Electron beam sensitive materials INTERNATIONAL BUSINESS MACHINES CORP 19 Feb 1975 [25 March 1974] 6918/75 Addition to 1147490 Heading G2C [Also in Division C3] A patterned etch-resistant mask is formed on a substrate by depositing thereon a film of a polymer having a number average molecular weight greater than one million, exposing selected areas of the film to electron beam radiation to reduce the degree of polymerization of the polymeric film in the exposed areas, and dissolving the exposed areas of the film in a solvent which does not dissolve the unexposed film areas. The polymer preferably has a number average molecular weight of at least ten million and may be, for example, polymethyl methacrylate, poly-t-butyl methacrylate, polyalpha-methylstyrene, polymethacrylanitrile or polybutene-1-sulphone (butene-1/SO2 copolymer). In illustrated examples the substrate is an oxidized silicon wafer.