baber/WOPTO huggingface dataset:
Patent GB-309113-A (GB)
IPC: G03C7/06
Abstract: 309,113. Christensen, J. H. Jan. 5, 1928, Colour photography, screens and screenplates for.-Relates to multicolour screens comprising particles formed from a suspension of a basic dye and an insoluble medium, such as tannic acid, in a liquor which does not dissolve the same, and consists in adding to the suspension one or more acid dyes which will form with the suspension a compound insoluble in water. The following acid dyes are particularly suitable, brilliantcroceine, sea-blue, patent-blue, erioglaucine, and naphthalene green. Instead of tannic acid other mordants may be used, such as tungstic acid, molybdenic acid or casein. Screens thus made are unaffected by the water in the emulsion afterwards applied, and in the treatment baths.
Patent GB-521752-A (GB)
Title: Improvements in and relating to rotary self-cleaning strainers
IPC: B01D33/00
Filed: 1938-10-26
Abstract: 521,752. Strainers. TOWLER, J. M., and TOWL.ER, F. H. Oct. 26, 1938, No. 30919. [Class 46] A rotor has end portions a b with radial ribs d extending outward from the shaft and united by a solid rim c with passages which connect the corresponding spaces between the ribs of the ends. The end a is surrounded with wire gauze or wound with wire to serve as a strainer, and the whole is mounted in a two-part casing which is eccentric to the rotor at either end as shown respectively in Figs. 2 and 3. With this arrangement liquid entering through an inlet o is drawn into the passages of the strainer along into the communicating passages of the part b which functions as a pump. The main portion of the filtrate is discharged through an outlet r and the rest forced back into the passages of the part a in communication with an outlet passage p, thus cleansing the corresponding part of the strainer. In a modification the part b of the rotor has a larger diameter than the part a so that the filtrate is delivered under greater pressure.
Patent GB-731715-A (GB)
Title: Improvements in or relating to apparatus for translating electric signals from one band of frequencies to another
Inventor: BRYDEN JOSEPH EASTO
IPC: H04B7/155
Filed: 1952-12-05
Abstract: 731,715. Frequency changing systems; radio signalling. GENERAL ELECTRIC CO., Ltd. March 5, 1954 [Dec. 5, 1952], No. 30939/52. Classes 40 (5) and 40 (6). Apparatus for translating modulated electric signals of frequency F3 from one band to another comprises three frequency changers connected in cascade in the signal path and first and second oscillation sources of frequency F1 and F4, the second frequency changer being fed with the frequency F4, one of the first and third frequency' changers being fed with the frequency F1 and the other with the frequency F1+nF4 (where n is an integer greater than 1) the whole apparatus being such that there is no overall frequency inversion but that the first and second or second and third frequency changers do effect inversion. The use of the double inversion simplifies phase equalization problems. The Figure shows the frequency changing and amplifying system at a radio relay station and indicates the frequencies of the existing at various points. Inversion takes place at frequency changers 2 and 3. Specifications 613,902 and 625,358 are referred to.
Patent GB-924024-A (GB)
Title: Improvements relating to air-cooled internal combustion engines
IPC: F02F1/04
Filed: 1961-08-28
Abstract: 924,024. Construction and cooling of cylinders. DAIMLER-BENZ A.G. Aug. 28, 1961 [Sept. 10, 1960], No. 30942/61. Class 7(2) An air cooled I.C. engine has a cylinder 2 having cooling fins and which is clamped by a finned collar 8 directly on to a support 7, integral with, and extending from the crankcase 6, in such a manner as to be freely expansible axially in a downward direction. The cylinder may be a light metal chill casting made by the " Alfin (Registered Trade Mark) process with a layer of hard chromium applied to the cylinder or to a shrunk-in liner 10 by direct molecular bonding or by a molten intermediate layer.
Patent GB-1149902-A (GB)
Title: Improvements in or relating to motor vehicle suspension
IPC: B60G3/10
Filed: 1966-07-11
Abstract: 1,149,902. Vehicle suspensions. PIRELLI 3p.A. 11 July, 1966 [13 July, 1965], No. 1 007/66. Heading B7D. A motor vehicle suspension, Fig. 2, has provision for longitudinal movement of the wheel resisted by a tie rod 6 made in two portions 10, 9 to which are connected, respectively, tubular members 12, 11 bonded to a rubber element 13 which acts in shear to cushion the longitudinal forces on the suspension.
Patent GB-688084-A (GB)
Title: Improvements relating to card filing systems
IPC: B42F17/02
Filed: 1950-12-21
Abstract: 688,084. Card indexes. WASS.ELL, G. P. Dec. 21, 1950. [Dec. 31, 1949] No. 31136/50. Class 146 (i). In a card filing system for business machine cards, certain cards 15, 25 used as indexing cards are caused to project slightly above the level of the other cards 10 by beadings or fillets 19, 20, which support the cards 15, 25, provided along either side of the bottom of the storage container 18 and running perpendicular to the plane of the cards when they are upright, the bottom corners 13, 14 of the other cards 10 being cut away correspondingly so as the to be supported in the container at a lower level. The fillets shown are triangular and the bottom corners 13, 14 are bevelled, a further corner 12 of the card 10 also being bevelled to allow the longest side to be either vertical. or horizontal. The fillets 191, 20<SP>1</SP>, may be provided on a removable adaptor 32 to fit into a storage tray. 181. The tops of the fillets 19, 20 may have a narrow horizontal surface 19a, 20a on which the index cards rest. The index cards 25 may be cut away to correspond with the fillets, but to a lesser extent than the cards 10, as shown at 27, 27a and 29, 29a, 31, 31a. The projecting parts of the index cards may be provided with transparent portions to enable other index cards to be seen therethrough.
Patent GB-142412-A (GB)
Title: Improvements in grease cups
IPC: F16N11/04
Filed: 1919-12-13
Abstract: 142,412. Williamson, S. S. Dec. 13, 1919. Grease cups. - A grease-cup is provided with an inner cylinder E containing a spring- pressed piston and fitted with a non-return valve 15. When the cap 5 oj the grease cup is screwed down by hand, grease is forced into the cylinder through the valve 15 and is then fed back slowly by the piston through an opening 18 not covered by the valve. Grease is thus displaced from the cap and passes through the outlet 3. A cap 8 carrying the stem 11 of the piston is secured to the projecting end of the cylinder 6 by a bayonet or other fastening. Fig. 12 shows a device for controlling the feed through the opening 18, comprising a pivoted arm 21 masking the opening and formed at one end with a pointer moving over a scale. Inlet openings or slots 17 at the base of the cylinder 6 may be covered by a gauze strainer.
Patent GB-1066469-A (GB)
Title: Improvements in or relating to the manufacture of alkali metal silicate or glass
IPC: C03C1/02
Filed: 1964-08-04
Abstract: An alkali metal, e.g. Na, silicate is prepared by reacting an alkali metal chloride with NO2 to give the nitrate and NOCl; reacting the nitrate with SiO2, e.g. sand, to give the silicate and NO; oxidizing the NO to NO2, which is recycled; and decomposing the NOCl into Cl2 and NO.  This NO may be oxidized (e.g. by decomposing in O2) and the NO2 recycled. The chloride -NO2 reaction occurs at room temperature; the nitrate -SiO2 reaction may be carried out in a rotary or glass-making furnace.  Glass-making ingredients, e.g. Ca, Mg, Al and B, and alkali metal salts, e.g. Na2CO3, Na2SO4 and borax, may be added to SiO2 with the nitrate.  The Ca may be added as limestone or dolomite, in which case Co2 is formed and may be separated from the NO by washing with water, or as sulphate, in which case SO3 is formed which reacts with the alkali metal chloride to give sulphate and HCl, the latter reacting with NO to give NOCl.
Patent GB-262811-A (GB)
Title: An improved method and device for filling defective teeth
IPC: A61C5/50
Filed: 1926-12-10
Abstract: 262,811. Christensen, T. Dec. 10, 1926, Teeth, stopping.- A cavity in a tooth 1 is filted by means of a partial crown or covering 3 of gold provided with a pin 2 adapted to enter a channel made in the tooth, and the remaining space 4 is filled with a suitable plastic substance such as an enamel filling, a suitable crown or covering 3 is chosen from a stock of various shapes and sizes and is adjusted to the width of the tooth cavity and inserted so as to be flush with the natural tooth surface. The Specification as open to inspection under Sect. 91 (3) (a) refers also to a known process whereby a gold filling is cast from an impression of the cavity so as to fit exactly and material is then removed from the exposed front surface of the filling so that an enamel filling may be applied, and states that crowns or coverings according to the invention may be supplied without pins so that a pin may be soldered thereto by the dentist. This subject-matter does not appear in the Specification as accepted.
Patent GB-1049127-A (GB)
Title: Process for the manufacture of hydrogen cyanide and acetic acid from oximinoacetone
IPC: C01C3/02
Filed: 1963-08-08
Abstract: Hydrogen cyanide and acetic acid are obtained by decomposing oximino-acetone in an inert solvent at 100-200 DEG  C. and 1-10 atm. pressure in the presence of 0.1-0.5 mol. of an organic acylating agent, per mol. of oximino-acetone, as catalyst.  The catalyst may be an acid halide, cyanide, or simple or mixed anhydride, preferably an acetic acid derivative, or a ketene.  Specific solvents are exemplified, acetic acid being preferred.  The process may be carried out by dissolving the oximino-acetone in the solvent, adding the catalyst, and heating, or by adding the oximino-acetone, alone or in solution, to a heated mixture of solvent and catalyst.  It may be operated continuously or in batch.  HCN is removed continuously, and acetic acid is isolated by distillation from the reaction mixture, or by condensation if vaporized.ALSO:Hydrogen cyanide and acetic acid are obtained by decomposing oximino-acetone in an inert solvent at 100-200 DEG  C. and 1-10 atm. pressure in the presence of 0.1-0.5 mol. of an organic acylating agent, per mol. of oximino-acetone, as catalyst.  The catalyst may be an acid halide, cyanide, or simple or mixed anhydride, preferably an acetic acid derivative, or a ketene. Specific solvents are exemplified, acetic acid being preferred.  The process may be carried out by dissolving the oximino-acetone in the solvent, adding the catalyst, and heating, or by adding the oximino-acetone, alone or in solution, to a heated mixture of solvent and catalyst.  It may be operated continuously or in batch.  HCN is removed continuously, and acetic acid is isolated by distillation from the reaction mixture, or by condensation if vaporized.
Patent GB-1432139-A (GB)
Title: Phase detector
IPC: H04L7/033
Filed: 1972-07-05
Abstract: 1432139 Phase comparators POST OFFICE 5 July 1973 [5 July 1972] 31430/72 Headings H3A and H3P A phase detector including two bi-stable circuits 20, 21 of the type which are switched by a clock input C to a state dependent on an applied data input D is characterized in that: the signal 22 whose phase is to be detected is applied to both C inputs; a reference signal 23 is applied to both D input; the signal 22 is delayed by a delay 25 and applied to a set input S of bi-stable 20 and a reset input R of bi-stable 21; and the outputs, Q, of the two bi-stables are summed in an adder R1, R2. Assume that bi-stables 20, 21 have been set and reset respectively, then the output at 24 on the application of the next C input will depend on the state of the signal at the D input at that time. If the reference signal 23 leads the signal 22 the D input is "1", and the application of the signal 22 sets both bi-stables to a "1" level, thus producing a "1" at output 24. Conversely if signal 22 leads the D input is still "0" when the C input is applied and both bi-stables are accordingly set to the "0" level to produce a "0" output at 24. If the two signals are co-incident, within a small tolerance range, the bi-stables remain in their existing states with a "1" level output from 20 and a "0" level output from 21. Output 24 is thus at an intermediate level. After the delay period determined by delay 25, both bi-stables are again switched to their initial states of "1" and "0" respectively. The detector is used in a retroactive control loop, for synchronizing a locally generated clock signal with a received data signal, Fig. 1 (not shown).
Patent GB-1480894-A (GB)
Title: Air-driven tool
IPC: B25B23/145
Filed: 1974-07-02
Abstract: 1480894 Air-operated fastener driving machines AVDEL Ltd 2 July 1974 [2 July 1973] 31484/7 Heading B3N An air-driven tool, Figs. 2 and 3, such as a nut-runner, screwdriver or fastening installer, has an attached bypass unit 23 with a pressurerelief valve which limits the torque of the motor providing the tool drive. Unit 23, Fig. 4, has a spring-loaded ball-valve between parts 29, 20 connected to the outlet and inlet respectively of the motor. The torque-limiting valve is varied by adjusting spring pressure on ball 26 by means of screw cap 28. The motor may be reversible with two pressure-relief valves operable in opposite directions (Fig. 6, not shown).
Patent GB-679593-A (GB)
Title: Improvements in or relating to ships' screw propellers
IPC: B63H1/12
Filed: 1950-12-29
Abstract: 679,593. Screw propellers. LIPS, M. M. H. Dec. 29, 1950 [Dec. 31, 1949], No. 31566/50. Drawings to Specification. Class 114. The thickness of the blade at any radius is determined from the thickness at the blade root, from a consideration of the bending stress produced by the thrust, centrifugal and similar calculable forces, and by a bending force at the blade tip sufficient to bring up the actual stress at each point to the maximum allowable stress in the material.
Patent GB-281310-A (GB)
Title: Process for preparing surfaces for the reception of cellulose lacquers
IPC: B05D7/10
Filed: 1927-11-24
Abstract: 281,310. I. G. Farbenindustrie Akt.- Ges. Nov. 24, 1926, [Convention date]. Coating processes. - A process for preparing surfaces, especially wood surfaces, for the reception of cellulose lacquers consists in applying an intermediate coating comprising a solution of a protein body, resin, and a softening agent. If desired an oil lacquer may be first applied, then the intermediate coating, and finally the cellulose lacquer. Examples of intermediate coating solutions comprise (1) an aqueous ammoniacal solution of casein glue, alcohol, shellac and camphor, (2) Gelatine, water, shellac, alcohol, a condensation product of acetal and urea, and methyl alcohol. (3) Gelatine, water, elemic resin, diacetone alcohol, tricresyl phosphate, glacial acetic acid and alcohol.
Patent GB-1466287-A (GB)
Title: Process for the preparation of a water-soluble salt of poly- alpha-hydroxyacrylic acid or a beta-alkyl derivative  thereof whose beta-alkyl substituent has 1,2 or 3 carbon atoms
IPC: C08F6/06
Filed: 1974-07-17
Abstract: 1466287 Poly-α-hydroxyacrylic acid salts SOLVAY & CIE 17 July 1974 [18 July 1973] 31661/74 Heading C3P [Also in Division C2] Water-soluble salts of poly-α-hydroxyacrylic acid (or a #-C 1-3  alkyl derivative thereof) are prepared by (1) converting α,#-dichloro-propionic acid (or #-C 1-3  alkyl derivative thereof) into the corresponding α-chloro-acrylic acid by thermal dehydrochlorination in the gas phase in the presence of a catalyst, e.g. calcined alumina; (2) condensing the product and polymerizing it in water in the presence of a catalyst, e.g. potassium persulphate; and (3) reacting the polymeric product with aqueous alkali metal or ammonium hydroxide.
Patent GB-389182-A (GB)
Title: Improvements in or relating to stoves for frying, water heating and other purposes
IPC: A47J37/12
Filed: 1931-11-16
Abstract: 389,182. Hollow-ware. SOUTH METROPOLITAN GAS CO. and CHANDLER, D., 709, Old Kent Road, London. Nov. 16, 1931, No. 31750. [Class 66.] A frying-pan or other utensil is adapted, when inserted in the heating chamber of a gaseous or liquid-fuel fired apparatus, to form with it a closed space, and is provided on the bottom with integral ribs which, together with the bottoms of the the pan and of the heating chamber, form passages which direct the products of combustion from the burners to the outlet flue. Fig. 1 shows a frying-range in which frying- pans 5 are supported in, and close the top of, heating-chambers 1 provided with burners 9 at one end and flue outlets 10 at the other. Integral ribs 6 on the bottom of the pan form straight passages by which the gases pass from the burners to the flue. As shown in Fig. 3, the passages may be further subdivided for part of their length by shorter ribs 7, 8. In one modification, the ribs are formed to provide channels having a lateral V-shaped offset for part of their length, and in a further modification the gases, after passing to the rear of the pan, are deflected by two curved ribs into side channels formed by straight ribs by which they pass again to the front, whence they return by further side channels to the rear.
Patent GB-1481848-A (GB)
Title: Process for thermonuclear laser microfusion
IPC: G21B1/03
Filed: 1974-07-18
Abstract: 1481848 Thermonuclear fusion WOJSKOWA AKADEMIA TECHNICZNA IM JAROSLAWA DABROWSKIEGO 18 July 1974 [25 July 1973] 31806/74 Heading G6P In a process of effecting thermonuclear microfusion, a pellet of solidified D-T undergoes precompression produced by detonation of explosive material and subsequently is bombarded by laser radiation. The multi-stream system illustrated embodies eight laser streams directed through apertures 7 on to the coated pellet 1, the streams being produced some 10<SP>-7</SP> seconds after precompression. The shock-waves from six sources 4 of explosive material are directed on to the pellet 1 by forming heads 5 and inserts 3. A bi-directional system is also described.
Patent GB-630478-A (GB)
Title: Improvements in circuit arrangements for operating a plurality of electric discharge lamps
IPC: H05B41/18
Filed: 1947-12-03
Abstract: 630,478. Control systems for space discharge lamps. GENERAL ELECTRIC CO., Ltd., and BOWTELL, J. N. Dec. 3, 1947, No. 31934. [Class 38 (iv)] To effect simultaneous flashing of a plurality of discharge lamps 1, 1<1>, heating current is supplied continuously to the lamp cathodes 7, 8, 71, 81 from a transformer 4, and a choke 9, 91 is included in each of the circuits supplying the discharge current to the parallel connected lamps, across each of which is connected the normally open contacts 10, 10<1> of an electromagnetic switch, the coils 11, 11<1> of which are connected to a D.C. source 12 through a contacting device 13 to effect simultaneous actuation of the switches. When the contacts 13 are opened, the switches 10, 10<1> remove the short-circuit from lamps and interrupt the choke currents thereby providing a voltage pulse across each lamp simultaneously to start the discharges. The contacts 10, 10<1> are preferably enclosed in an evacuated envelope and the contacting device may comprise a motordriven cam 14 adapted to operate the contacts 13 at desired intervals. Lamps having an earth wire outside the envelope may be used to assist and ensure simultaneity of starting.
Patent GB-160898-A (GB)
Title: Improved variable stroke engine for operating jigging or reciprocating conveyors andlike appliances
IPC: F01L23/00
Filed: 1919-12-20
Abstract: 160,898. Yorkshire Engine Co., Ltd., and Wood, J. W. Dec. 20,1919. Combined fluid-actuated and mechanical gears; cylinders, valves co-axial with and moving over ,ports in; slide valves, cylindrical and piston.-A variable-stroke compressed-air or like engine for jigging conveyers comprises a tubular piston e and rod e<1> working in a cylinder a having a fixed central tube b enclosing the valves. The admission valve c has a circumferential recess co-operating with ports b<1>, b<4>. It is normally held in the closed position shown by a spring c<3> and is actuated by the piston e through a rod f and lever g. 'The exhaust valve is a sleeve h rotatable by means of a handle j<2> and bevel gear i, j, to bring a stepped groove h<1> into register with one or other of the ports b<2> in the fixed tube b. When the piston reaches the port b<2> in register with the groove h<1>, the exhaust passes along the groove, closes the admission valve c, and escapes through ports b<5> and the sleeve h.
Patent GB-779498-A (GB)
Title: Process for the partial removal of oxo groups from steroid compounds
IPC: C07J75/00
Filed: 1954-11-04
Abstract: In a process for the manufacture of monooxo-compounds of the steroid series an a -dioxocompound of the steroid series or an enol or enolate thereof is heated with hydrazine, hydrazine hydrate or a hydrazine salt or with semicarbazide or a salt thereof, e.g. acetate, chloride or sulphate, in the presence of an alkali metal hydroxide or alcoholate at a temperature at which nitrogen is evolved and which does not exceed 160 DEG  C.  As starting materials, steroids with the vicinal oxo groups in the 2:3-, 3:4-, 6:7-, 16:17-, 20:21- and especially the 11:12-positions and also the corresponding enols such as D 9:11-11-hydroxy-12-ketones or d 15-16-hydroxy-17-ketones or their enolates such as metal enolates, enol-acylates or enol-ethers are suitable.  The steroids may be of the oestrane, androstane, testane, aetiocholane, pregnane, spirostane, furostane, bufostane, cholane, cholestane, nor- or bisnor-cholestane series.  Preferably, the reaction is carried out at 120 DEG  to 150 DEG  C. in a mono- or poly-oxy compound as solvent.  In examples: (1) 3a -hydroxy-11:12-diketo-cholanic acid is heated at 135-145 DEG  C. with caustic soda and hydrazine hydrate in ethylene glycol to give 3a -hydroxy-11-ketocholanic acid.  Similarly, (2) D 2:11-3a :11-dihydroxy - 12 - cholenic acid - 3 - acetate is converted to 3a - hydroxy - 11 - keto - cholanic acid; (3) D 9:11-3a :11 - diacetoxy - 12 - keto - cholenic acid methyl ester is converted to 3a -hydroxy-11-keto-cholanic acid (with intermediate treatment with acid); (5) 3b -hydroxy-11:12 - diketo - iso - allospirostane is converted to 3b  - hydroxy - 11 - keto - iso - allospirostane.  In Example (4) D 23-3a -acetoxy-11:12-diketo-24:24-diphenyl-cholene is similarly treated, and the reacted product is acetylated with acetic anhydride and pyridine to form D 23-3a -acetoxy-11-keto-24:24-diphenyl cholene.  Starting compounds.  D 9:11 - 3a :11 - Dihydroxy - 12 - keto - cholenic acid 3-acetate is prepared by heating 3a -hydroxy-11:12-diketocholanic acid with acetic acid. D 23-3a -acetoxy-11:12 - diketo - 24:24 - diphenyl - cholene is prepared by adding a mixture of D 23-3a -acetoxy - 12b  - hydroxy - 11 - keto - 24:24 - diphenyl-cholene acetic acid and chlorobenzene to a heated mixture of bismuth trioxide, acetic acid and chlorobenzene and distilling off solvent.  The mother liquor after evaporation and acetylation also yields D 23-3a -acetoxy-11:12-diketo-24:24-diphenyl-cholene-11 -enolacetate.
Patent GB-429242-A (GB)
Title: A cell for optically examining or testing liquid
IPC: G01N21/03
Filed: 1934-11-07
Abstract: 429,242. Liquid -containing cells; photometric apparatus. MAW, F. J., Ingleside, Port Nelson, Ontario, Canada. Nov. 7, 1934, No. 32001. [Class 97 (i)] A cell to contain a film of liquid for optical inspection or testing consists of two plates 10, 11 hinged together and having apertures 16 which register when the plates are closed, these apertures being closed by transparent windows 19, 22 which are so positioned that a space 24, filled with the liquid to be tested &c., is left between them when the plates are closed. The plate 10 is formed with a depression 15 communicating with an annular groove 17, and the window 22 in the plate 11 is surrounded by a ring 20 having a number of radial passages 21 to allow excess liquid to escape from the space 24 into the groove 17. Alternatively the passages may be formed directly in the plate 11. The cell is particularly intended for use in the photometric apparatus for testing lubricating oil described in Specifications 401,514 and 419,339.