baber/WOPTO huggingface dataset:
Patent GB-602833-A (GB)
Title: Improvements in or relating to saccharification of cellulosic materials
IPC: C13K1/02
Filed: 1945-10-31
Abstract: The methods of saccharifying cellulosic materials by means of formic acid described in Specifications 311,695 and 323,693, [both in Class 127], are modified by passing a current of an inert gas such as nitrogen through the mass after hydrolysis of the formates in the mass in order to carry off the formic acid. Preferably the hydrolysed mass is heated to 80 DEG C. and is caused to travel by means of a screw in a thin layer countercurrently with respect to the inert gas which may also be heated.  The formic acid is chiefly collected in a condenser, the remainder being scrubbed out by a solvent such as ethyl ether or a mixture of benzene and methyl-tetrahydrofurane from which the acid can be recovered by azeotropic distillation.
Patent GB-204229-A (GB)
Title: Improvements relating to the plate racks of gas-cookers and the like
IPC: F24C15/12
Filed: 1922-10-25
Abstract: 204,229. Brentford Gas Co., and Johnston, A. A. Oct. 25, 1922. Supports for articles to be heated.- The standards 2 of a plate rack 3 are supported on the hotplate 1 of a gas stove bv means of sockets in the latter into which the lower ends of the standards fit. The rear faces 10, 11 of the sockets and the feet of the standards are automatically wedged in position. The sockets may be formed in bracketsscrewed to the corners of the hot-plate.
Patent GB-323802-A (GB)
Title: Process for the manufacture of cupric cyanic and cupric thiocyanic compounds
IPC: C01C3/20
Filed: 1928-10-10
Abstract: 323,802. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Oct. 10, 1928. Copper cyanides or thiocyanides combined with organic bases. - Gupric cyanic and thiocyanic compounds, suitable for use as dusting compounds for combating insect pests, are formed by precipitating a cupric salt with a cyanide or thiocyanide and an organic nitrogen compound such as methylamine, ethylenediamine, urea, guanidine, aniline, pyridine, piperidine &c. Insoluble cupric compounds are produced.
Patent GB-709987-A (GB)
Title: Improvements in or relating to motor fuels
IPC: C10L1/18
Filed: 1950-11-29
Abstract: About 0.05 to 1.0 per cent. by volume of an ether of formula R-(O-Y)n-OZ, wherein R is an alkyl, aralkyl or aryl group of 1 to 18 carbon atoms, Y is -CH2-CH2-, -CH(CH3)-CH2, -CH(CH3)-CH(CH3)- or -CH(C2H5)-CH2-, Z is R or hydrogen and n is an integer from 1 to 6, is added to a gasoline fuel having a 50 per cent. ASTM distillation point below 310 DEG F.  Specified ethers include the monomethyl, monoethyl, monopropyl and monobutyl ethers of diethylene glycol, ethylene glycol monophenyl ether, ethylene glycol monobenzyl ether, ethylene glycol mono-2-ethyl-butyl ether, ethylene glycol mono-2-ethyl-hexyl ether, propylene glycol monoethers of methyl, ethyl, propyl, butyl, octyl, 2-ethyl-hexyl, decyl, oleyl, cetyl or stearyl alcohol, di-, tri- and tetrapropylene glycol mono-ethers of methyl, ethyl, butyl, nonyl and tridecyl alcohols, and the diethers of mono-, di-, tri- and tetraethylene and mono-, di-, tri- and tetra-propylene glycols with methyl, ethyl, propyl, amyl, dodecyl, oleyl and stearyl alcohols.  Preferred concentrations in volume per cent. are 0.05 to 0.5 and especially about 0.1 to 0.3.  In an example an aviation grade 80 fuel is tested with and without the addition of 0.5 volume per cent. of diethylene glycol mono-butyl ether.
Patent GB-738303-A (GB)
Title: Improvements in or relating to soot doors
IPC: F23J3/02
Filed: 1952-11-20
Abstract: 738,303. Soot doors. GILBERT, R. L., and HOBSON, L. J. Nov. 20, 1953 [Nov. 20, 1952], No. 29383/52. Class 25. A soot door of the kind comprising a frame for insertion in a wall of a building opposite a flue to provide an opening and a cover detachably connected to the frame over the opening wherein the cover is so shaped that it can be moved into the flue to close it or completely removed from the frame. A soot door comprises a frame 10, an inner cover 16 and an outer cover 25, which are clamped together by bolts 22 and wing nuts 28. Lugs 18, projections 20 and ears 19 on the inner cover are so arranged that the cover may be lifted to disengage the lugs 18 from a part 11 projecting from the frame, and tilted so that it closes the flue 32 and slopes downwardly from the inner face of the flue to the frame, where it is held by a lip 14. In a modification, the inner cover is slidable in horizontal or inclined guides formed in the walls of the frame so as to close the flue.
Patent GB-1190209-A (GB)
Title: Process for manufacturing Thermoplastic Marking Materials
IPC: C09D7/80
Filed: 1967-06-26
Abstract: 1,190,209. Thermoplastic road marking materials. NIPPON PAINT CO. Ltd. 26 June, 1967 [21 July, 1966], No. 29407/67. Heading C3P. Thermoplastic road marking materials comprising film-forming thermoplastic resin, liquid plasticizer therefor and pigment are prepared by mixing, without heating, at least a part of a " nucleus ingredient", being materials of such particle size and such low absorption of the liquid ingredients that they do not cohere or become lumpy, with the liquid ingredients of the composition, and subsequently mixing, without heating, the mixture with the remaining ingredients, the material comprising 3 to 75 weight per cent of nucleus ingredient and 1 to 20 weight per cent of liquid ingredient. Specified nucleus ingredients are glass spheres, silica sand, and ethylene/vinyl acetate copolymer and polyethylene wax pellets. Specified liquid ingredients are dioctyl phthalate, chlorinated diphenyl, epoxidized soybean oil, castor oil, soybean oil and linseed oil. Specified remaining ingredients are any remainder of the nucleus ingredient, terpene resins, ester gums, petroleum resins, modified maleic resins, modified phenol resins, titanium dioxide and chrome yellow pigments, calcium carbonate, mica, 2,6- di-t. butyl-4-methyl phenol and stearamide. Examples describe the preparation of marking compositions from silica sand, titanium dioxide and (1) glass spheres, linseed oil, maleic resin and talc; (2) linseed oil, maleic resin and talc; and (3) granular polyethylene wax and paraffin wax, chlorinated diphenyl, ethylene/vinyl acetate copolymer and ester gum.
Patent GB-869871-A (GB)
Title: Improvements in or relating to air-cooled internal combustion engines
IPC: F02B75/24
Filed: 1959-08-28
Abstract: 869,871. Silencing and purifying charge; cooling cylinders. PORSCHE, F. Aug. 28, 1959 [Sept. 13, 1958], No. 29422/59. Class 7(2). The welded-up sheet metal casing 10, 11 of a cooling-air blower 5 is extended beyond one delivery scroll 18 to form a silencing chamber 23 between a charge air entry filter 29 and a rubber connector 34 to a carburetter 37. Alternatively, the chamber 23 may be structurally separate from the blower 5. A second chamber 23 may be associated with the other scroll 7, and each duct may be connected to one or several carburetters.
Patent GB-868696-A (GB)
Title: Improvements in or relating to radiation sensitive indicating or controlling devices
Inventor: BESWICK CLIFFORD KENNETH
IPC: G01T1/18
Filed: 1958-09-15
Abstract: 868,696. Radiation sensitive devices. SIMONCARVES Ltd. Aug. 17, 1959 [Sept. 15, 1958], No. 29434/58. Class 40(3) Pulses from a Geiger-Muller tube 2 in response to radiation from a radio-active source trigger a mono-stable blocking oscillator (transformer 14 and transistor 15) and thereby energize a relay coil 16 provided with a number of normally open and normally closed contacts (not shown) for operating control or warning circuits and an additional normally open contact 21 which, when closed, short circuits a resistor 22 in series with coil 16 to increase the energizing current and prevent relay chatter. The warning signal controlled by the device may be audible or visual and the control effected may relate to the filling of containers and similar applications in dependence on the presence or absence of an object or material in the path of the radiation. The tube 2 may be replaced by an ionisation chamber or by a scintillation counter. Specification 858,388 is referred to.
Patent GB-1222678-A (GB)
Title: Process for purifying melamine
IPC: C07D251/62
Filed: 1968-06-20
Abstract: 1,222,678. Purification of melamine. STAMICARBON N.V. 20 June, 1968 [23 June, 1967], No. 29516/68. Heading C2C. A process for purifying melamine obtained by heating urea and/or a thermal decomposition product thereof in the presence of ammonia and a catalyst and absorption of the gaseous reaction mixture in water, and filtering the solution to remove impurities and crystallizing melamine from the mother liquor; comprises dissolving the crude melamine in water at a temperature not greater than 110 C. (under pressure where necessary) filtering the solution thereby obtained at a temperature not greater than 110 C. and at a pH value between 6 and 8, and separating melamine from the filtrate by crystallization.
Patent GB-226940-A (GB)
Title: Improvements in holders for chemical apparatus and the like
IPC: B01L9/00
Filed: 1923-11-22
Abstract: 226,940. Hossack, A. Nov. 22, 1923. Clamps for holding thermometers, flasks, glass tubes, and like chemical apparatus are constructed so as to hold the objects with a spring pressure which can not exceed a certain amount, and the pressure of the clamp c,xn be released by a nut or by a quick-release device. In one form, the clamp comprises a cylindrical body a adapted to be held in a retort stand or the like, the body a being integral with fixed gears e against which the object f is pressed by a movable jaw c attached to a spring plunger b which can slide in the body a. The jaw c is prevented from rotating by a screw v acting on a flat part of the plunger or by other means. The jaw c call be moved to inoperative position by a nut g acting on a screw b<1> integral with the plunger, or by a quick-release device comprising pivoted arms k<1> with rods k which can be depressed into contact with bevelled ends of the body a and the nut g to withdraw the nut and its clamping-jaw c. On releasing the means which hold the jaw c out of operation, the jaw returns to its gripping position, but, when once the object f is gripped, further manipulation of the releasing means has no effect on the pressure. A lens carrier may be adjustably mounted on the body a. In a modification, Fig. 6, for folding the necks of flasks, the fixed jaw o is cylindrical and lined with packing, and the plunger b carries a concave jaw c suitably lined. The jaw o may be hinged to the part carrying the body a to enable the clamp to be applied to flasks with flanged mouths. The hinged parts are held by a spring catch t.
Patent GB-1529239-A (GB)
Title: Rotary concentrators for solids-containing fluids
IPC: B01D29/39
Filed: 1976-07-15
Abstract: 1529239 Slurry concentrator ARTISAN INDUSTRIES INC 15 July 1976 [17 July 1975] 29534/76 Heading BID In a slurry concentrator (Fig. 1, not shown) comprising alternate flat annular elements 19 and discs 21 spaced axially apart along a cylindrical housing, with the discs mounted on a shaft (20) to rotate relative to elements 19, wherein slurry flows along a sinuous path round the outer peripheries of discs 21 and the inner peripheries of elements 19, the discs or elements or some of each being constructed as filters which drain off liquid from the slurry, the outer edges of the discs 21 are provided with circumferentially spaced guides 30 which make clearances of e.g. 0.01 inch with adjacent elements 19 or parts of the housing to restrain the discs against axial displacement. As shown the guides comprise outwardly extending fingers which run in annular grooves 33 in the housing wall, the grooves being lined with replaceable bearing rings 28, 31. In Fig. 6 (not shown) the guides comprise T-section members which run against bearing rings screwed to the facing surfaces of elements 19. In Fig. 4 (not shown) the inner peripheries of elements 19 are similarly provided with guides running in grooves in the shaft (20) or in the hubs (22) of discs 21 thereon. The fingers of the guides could be hardened and/or replaceable when worn or could incorporate ball or roller bearings. In the concentrator illustrated discs 21 are solid with curved blades 21A, and elements 19 are filter elements with filter cloth sections 23 on each flat face and individual filtrate outlets (24A) into a drain pan. Flanges 18A, 18B welded to the outer peripheries of elements 19 form the housing wall when the elements are bolted together. In alternative constructions the housing and elements 19 may rotate, elements 19 may be solid and discs 21 may be filter elements, or elements 19 and 21 may each include solid and filter elements.
Patent GB-135864-A (GB)
Title: Improvements in or relating to Roller Bearings.
IPC: F16C23/08
Filed: 1919-11-26
Abstract: 135,864. Aktiebolaget Svenska Kullagerfabriken. Nov. 29, 1918, [Convention date]. Roller bearings.-A roller journal bearing capable of taking axial thrusts in both directions has two rows of barrel-shaped rollers in line contact with an outer spherical track. The inner track may also have the same curvature in section as the rollers. The rows are separated by a ring o, Fig. 1, which may be integral with one of the race rings. The ring o may have spherical or other curved surfaces fitting against similar surfaces on the ends of the rollers. The rollers are spaced by tongues p on a cage ring. The rollers are so shaped as to roll as cylinders or as cones. As shown in Fig. 2, each roller has an axial projection r fitting into a hole in a cage ring s. Fig. 3 shows a modification in which the rollers have thrust surfaces engaging flanges t on the inner race u.
Patent GB-1343689-A (GB)
Title: Temperature telemetering apparatus
IPC: G01K1/02
Filed: 1971-06-24
Abstract: 1343689 Radio, inductive signalling BECKMAN INSTRUMENTS Inc 24 June 1971 [13 July 1970] 29772/71 Headings H4U and H4L [Also in Division G1] Apparatus for providing an indication of the temperature of a centrifuge rotor comprises a thermistor 214 in thermal communication with the rotor and connected into a frequency-sensitive bridge network 21 energized at frequency f 1  from a voltage controlled oscillator 11 by way of a transformer 17, of which the secondary winding 18 is on the rotor, the output signal from the bridge being a function of the frequency difference between f 1  and the balance frequency of the bridge which signal is applied to a modulator 25 to modulate the output of an R.F. oscillator 26 which modulated signal is transmitted from the rotor to a receiver 31 by way of antennae 27, 30 and the demodulated signal from the receiver is applied by way of a phase sensitive detector 12 to control the oscillator 11 so as to bring its frequency to the bridge balance frequency, thereby nullifying the bridge output signal, the oscillator frequency then corresponding to rotor temperature. The detector 12 takes account of the phase sense of the bridge output and determines the polarity of the D.C. control voltage on line 35 accordingly. The electrical power supply for the circuits carried by the rotor (shown inside dotted box 20) is from the transformer 17 and power supply 23 and switches 13, 33 controlled by an oscillator 15 are operated so as to cause the receiver to be disabled for alternate half cycles of the energizing waveform from oscillator 11 during which the capacitors 230, 231 of the D.C. power supply are being charged by way of diodes 232, 233 so that the oscillator 11 is controlled by signals derived from the bridge during the other half cycles when the supply is not drawing charging current and the waveform to the bridge is consequently not distorted. Frequency f 1  is in the range 14-55 KHz. whilst that of R.F. oscillator 26 is 3MHz. and of oscillator 15 it is 60 Hz.
Patent GB-1152705-A (GB)
Title: Improvements in or relating to the Treatment of Materials Comprising Compostible Organic Matter.
Inventor: ABSON JAMES WILLIAM
IPC: C05F17/00
Filed: 1965-11-13
Abstract: 1,152,705. Deodorising gases. SIMON HANDLING ENGS. Ltd. 25 Oct., 1966 [13 Nov., 1965; 2 July, 1966], Nos. 48294/65 and 29805/66. Heading ASG. [Also, in Divisions B1 and C1] The offensive odour of exhaust gases produced in an aerobic bacterial digestion stage of a process for converting compostible organic matter into compost is removed by contacting the gases with an aqueous solution of an oxidising agent. The solution is preferably sprayed into the gas in concurrent flow therewith, and the solution may be recycled. Oxidising agents mentioned are potassium permanganate (acidic or alkaline), sodium; permanganate (acidic or alkaline), acidic calcium permanganate, acidic potassium and sodium dichromate, chromic acid, nitric acid, sodium hypochlorite, hydrogen peroxide and sodium peroxide. Two specific examples, giving temperatures, liquid flow rates and proportions of oxidising agent are described.
Patent GB-706229-A (GB)
Title: Improvements in or relating to mixing and homogenising liquids
IPC: B01F9/00
Filed: 1951-12-20
Abstract: 706,229. Mixing appliances. AKTIEBOLAGET SEPARATOR. Dec. 20, 1951 [Dec. 22, 1950], No. 29864/51. Class 86 A liquid mixing device comprises a rotatable housing into which a liquid is fed to rotate therewith, a paring member disposed therein for paring out and discharging the liquid through a first channel arranged in the paring member and a second channel for delivering an admixing liquid, this channel ending at a point in the first channel or in a channel leading therefrom at which the first liquid discharged therethrough has a high velocity. In apparatus which includes a rotating casing 6, containing a stationary paring disc 9, a liquid with which a second liquid is to be mixed is fed down a channel 15 into the rotating casing 6 wherein wings 12 and 13 cause the liquid to rotate with the casing. This liquid is pared out by bent tubes 19 which project from the paring disc 9 and flows at high velocity through channels 18 in the paring disc. The second liquid passes down a channel 16 into channels 17 and thence into the channel 18 wherein the two liquids became mixed. The mixture flows through homogenizing devices 21 which consist of chambers filled with balls or the like and is then discharged through the channel 22. Specification 683,486 is referred to.
Patent GB-986195-A (GB)
Title: Improvements in or relating to a thread rolling machine
IPC: B21H3/04
Filed: 1961-08-21
Abstract: 986,195. Rolling threads. SMERALOVY ZAVODY NARODNI PODNIK. Aug. 21, 1961 [Aug. 25, 1960], No. 30025/61. Heading B3M. A machine for simultaneously rolling threads on a number of workpieces 11 comprises rolling heads 8 mounted on a rotating table 1, each of the heads being rotatable about its own axis. The table 1, along with workpiece holders 12, is rotated in a frame 3 by a motor 4. Rotation of the heads 8 is due to engagement of pinions 14 of each head with a fixed toothed ring 15. Vertical movement of the heads is effected by rollers attached to each head which engage an annular cam surface on the frame. Similarly, an annular cam 10 controls movement of the workpiece holders. The movement of the workpieces and rolling heads may alternatively be controlled electrically or by fluid pressure. In an alternative form the rolling heads face downwardly and are fed towards screws to be rolled by gravity.
Patent GB-970169-A (GB)
Title: Retrievable subsurface well tool
IPC: E21B33/129
Filed: 1961-08-21
Abstract: 970,169. Wells &c. BAKER OIL TOOLS Inc. Aug. 21, 1961 [Oct. 28, 1960; Nov. 14, 1960], No. 30070/61. Heading E1F. A tool adapted to be attached to a tubing string E comprises an inner member 10 telescopic within an outer member 19, 21, an annular fluid passage 20 between the members, a valve element 34 on the inner member engageable with a seat 36 on the outer member to control flow through the passage, a piston 39 urged downwardly by the pressure of fluid in the passage, latches 44 in the piston adapted to connect and disconnect the piston and the inner member when the inner member is moved respectively downwardly and upwardly with reference to the outer member, and packing means 57 on the outer member. Figs. 1 and 1a show the tool being lowered into a well casing B, and Figs. 2 and 2a show the tool anchored and packed-off in the casing. The tool is lowered a short distance below its final position in the casing, and the member 10 is then raised, turned to the right, and lowered to free a pin 92 from a groove 100 to disconnect the slips 62 from the member 10. Further downward movement of the member 10 causes the element 34 to close the passage 20 and to move the member 19, 21 downwardly so that the expander 61 opens the slips to prevent them moving downwardly relative to the casing and an abutment 59 compresses the packing 57 against the casing. During downward movement of the member 10 a groove 48 in the member is engaged by the latches 44 and the piston takes up the position shown in Fig. 2 to offset the effect of any pressure in the passage which would tend to move the element from its seat to open the passage. Upward movement of the tool is prevented by grippers 24 which are forced into engagement with the casing by the pressure of fluid in the passage. The tool is released from the casing by elevating the member 10 to release the latches and open the passage to release the grippers. Further elevation of the member 10 retracts the packing, releases the slips which become drag members, and causes the pin to ride over projections so that it engages the groove 100 and the slips are entrained with the rest of the tool.
Patent GB-1113422-A (GB)
Title: Improvements in or relating to resin-glass rods
Inventor: HAYWOOD PHILIP NORWELL
Filed: 1964-07-29
Abstract: 1,113,422. Insulators. ENGLISH ELECTRIC . CO. Ltd. 27 July, 1965 [29 July, 1964], No. 30073/64. Heading H2C. A rod 10 made of resin-bonded glass fibre for use in electrical equipment is provided with splayed ends by cutting the end of the rod axially about an axial bore to produce a number of segments, splaying the segments with a peg 18, filling the splayed end with a curable resin and curing the resin. The peg itself may be of resin-bonded glass. The splayed end may be enlarged by wrapping it with glass tape and curable resin 19. A termination may be fitted by a metal ring or ferrule which may be provided with an exterior thread and held in position by a further cured resin or a low-melting point metal poured or forced between the ring and the rod end, the inner surface of the ring being suitably roughened.
Patent GB-685462-A (GB)
Title: Improvements in and relating to footwear
IPC: B29D35/06
Filed: 1949-11-24
Abstract: 685,462. Making footwear. ASHWORTH S. Nov. 22, 1950 [Nov. 24, 1949], No. 30099/49. Class 17 (ii). In the manufacture of footwear having soles produced in situ by enclosing and heating a sole piece of an unvulcanized sponge rubber mix which may be rendered temporarily fluid and expands permanently on heating, the shoe parts such as insole and welt to which the upper is to be attached are perforated, and, during the expansion, the sole mixture penetrates through the perforations and anchors the parts together. The sole material may be applied to a shoe upper 1 overlasted on to an insole 2 both of which have perforations 3, 4 in a mould member 9, the top of which is closed by the shoe upper and insole on its last 10. A sock 7 of vulcanized or unvulcanized sponge rubber mixture may be lasted with the insole 2 and upper 1 and to which the sole becomes attached.