baber/WOPTO huggingface dataset:
Patent GB-195124-A (GB)
Title: Improvements in and relating to transport and trailer vehicles
IPC: B62D53/06
Filed: 1921-11-22
Abstract: 195,124. Page, G., ard Dewing, L. Nov. 22, 1921. Articulated road vehicles.-In vehicles of the kind in which a four-wheeled tractor supports the front end of a two-wheeled trailer, the lower half of the swivelling undercarriage between the two vehicles is directly carried by transverse trunnions on the frame of the tractor. The Figure shows a transverse section of the combined vehicle through the turntable. The upper part i of the turntable is secured to the trailer frame q and the lower part h is connected by trunnions 1 to brackets n carried by the tractor frame e. Tilting movement of the turntable about the trunnions are resisted by helical springs connecting the front or rear of the turntable to the tractor frame. The front end of the trailer body and the rear end of the tractor cab are both set back relatively to one another at their upper parts to avoid damage to adjacent surfaces when the vehicles tilt about the transverse axis.
Patent GB-455882-A (GB)
Title: Improvements in cyclone apparatus for separating solid particles from gases
IPC: B04C5/30
Filed: 1935-11-11
Abstract: 455,882. Centrifugal gas cleaners. BIETH, T. C., 25, Landsgatan, Hedemora, Sweden. Nov. 11, 1935, No. 31135. Convention date, May 16. [Class 23] In a cyclone dust separator the whirling dust passes through a slot in the separator wall to a dust collector, and one or more pipes connect the small end of the separating chamber to the dust collector. The apparatus shown in Figs. 1, 2 consists of a drum part 1 with an entry chamber 3 and a conical separating chamber 2 at opposite ends. The tangential admission pipe 4 causes the gas to rotate in the apparatus. A slot 19 of uniform width or a divergent slot 20 in the wall of the conical part 2 permits the separated dust to pass to the collector 10 which encloses the lower halves of the parts 1, 2 and has a dependent hopper portion. The clean gas leaves by the axial outlet 5. One edge of the slot 20 may overlap the other. A pipe 17, with an inlet end 16 in the collector 10 near the inlet end of the separator, conducts gas to the small end of the separator thereby diminishing the pressure in the collector.
Patent GB-761347-A (GB)
Title: Improvements in or relating to television receiver circuits
Inventor: JOHNSON LESLIE BRIAN
IPC: H04N5/59
Filed: 1952-12-09
Abstract: 761,347. Television receivers. MULLARD RADIO VALVE CO., Ltd. Dec. 9, 1952, No. 31165/52. Class 40 (3). The contrast of a video signal applied to the cathode-ray tube is varied inversely in accordance with the mean beam current of the tube. The invention is of particular application to receivers employing high-voltage projection-type tubes and has the effect of utilizing more fully the permissible rating of the tube and E.H.T. unit whilst also improving the reproduction of detail in dark scenes. In the Figure, the E.H.T. supply for tube 6 is derived from a sawtooth oscillator 15 energizing a transformer and rectifier 20-22 through an output stage 18. The current through this stage varies directly with the mean beam current of the tube and the potential developed across cathode resistor 26 is applied to the cathode of the final I.F. stage 1 so as to vary the bias and hence the video signal contrast inversely in accordance with the cathode-ray tube mean beam current. Ripple at the frequency of oscillator 15 is eliminated at the cathode of the I.F. stage by condenser 4. Residual ripple may be balanced out by feeding a ripple component to the grid.
Patent GB-735097-A (GB)
Title: Improvements in or relating to reciprocating saws
Inventor: TRABEN JOSEF
IPC: B27B3/06
Filed: 1953-11-11
Abstract: 735,097. Sawing. LINCK, K., [trading as LINCK MASCHINENFABRIK UND EISENGIESSEREI GATTERLINCK, GEB.]. Nov. 11, 1953, No. 31281/53. Class 145. The blade or blades 4 of a reciprocating frame saw are tensioned hydraulically by pistons 9, 10 to which the ends of the blades are attached, the pistons working in cylinders 11, 12 interconnected by a pipe 13 so that, during reciprocation of the blades, fluid medium is transferred from the cylinder space on the inner side of one piston to the same space in the other cylinder at a constant pressure which is maintained by a pump 19 in conjunction with a pressure chamber 14 having adjusting and indicating means. The saw is reciprocated by applying hydraulic pressure from a second pump 24 alternately to the outer ends of the pistons 9, 10 under the control of a valve 28 operated by power means 33 in synchronism with the blade movement. The saw reciprocating means may be interconnected with the work feed means.
Patent GB-660547-A (GB)
Title: Improvements in and relating to electric fans
IPC: F04D25/10
Filed: 1949-12-06
Abstract: 660,547. Screw fans. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 6, 1949 [Dec. 16, 1948], No., 31302/49. Class 110(i) An electric fan comprises a vertically arranged rod supporting the motor casing, the rod having an eccentric or offset portion to which an oscillating mechanism is connected. The fan is supported on a rod 7 having an arcuate portion which can slide in a channel 8 and is adjustably secured to the base 9 by an eye bolt 10. At its upper end, the rod 7 is journalled in bearings 12 and 14 and has an eccentric portion 22 to which one end of an L-shaped lever 41 is pivotally attached at 42. The other end of the lever 41 is pivotally attached at 40 to a crank arm 39 which is rotated through reduction gearing from the motor shaft 2.
Patent GB-171300-A (GB)
Title: A collapsible trestle
IPC: E01F13/02
Filed: 1920-11-05
Abstract: 171,300. Clerk & Son, Ltd., D., Denholm, D., Hill, M., and Gilmour, D. Nov. 5, 1920. Scaffolding.-A stand for supporting a barrier consists of an angle upright A with bearing bracket B and collapsable pivoted angles for feet at its lower end, two in alignment and one at right-angles. These feet are operated by stays .D from a sliding angle sleeve E, a stop G being provided to limit its motion on the upright.
Patent GB-285773-A (GB)
Title: An improved portable magnesium flashlight for photographic purposes
IPC: F21K5/08
Filed: 1927-11-22
Abstract: 285,773. Murray, W. Nov. 22, 1927. Magnesium lamps.-A portable magnesium flashlight appa.ratus comprises a box or casing formed by two approximately equally-sized parts a, b hinged detachably along one edge e, c and adapted to be secured by a spring catch d when in the closed position. The lower part a consists of a closed chamber containing a battery f and having a top panel e fitted with grooved guides g in which a flange j on the cardboard shell of the magnesium cartridge j is held by the pressing of spring-contacts. h against terminals i of the cartridge fuse wire k. The panel e also carries two terminals l, l<1> the terminal l being connected to one spring contact h and the terminal l<1> to one battery plate m. The other spring contact h is connected to the other battery plate m. The upper part b contains a spring push switch n arranged between two terminals o which are connected by a dual cable p to the terminals l, l<1>. Fig. 5 shows a suitable hinge for connecting the parts a, b so as to allow the parts b to be removed to a suitable distance when the cartridge is to be fired. The hinge comprises arcuate tongues r on the part b fitting into slotted plates s on the part a.
Patent GB-314295-A (GB)
Title: Improvements in means for driving the spindles of spinning machines and the like
IPC: D01H1/241
Filed: 1928-10-29
Abstract: 314,295. Durand, M. P. Aug. 17, 1928, [Convention date]. Spindle-driving apparatus; stop-apparatus, non- (automatic.-In spinning- machines and the like wherein the spindles are driven by belts which engage with the wharls at diametrically opposite points, the belts 3, 3' are pressed against the wharls by pulleys 24, 24<1>, Fig. 4, which act radially of the wharls 2 and are carried by levers 23, 23<1> coupled by an arched spring 25. The levers are further coupled by a rod 27 and a link 28, the latter being actuated by a finger 29 on a hand-operated weighted tumbler lever 32 to remove the pulleys 24, 24' to stop the spindle, brakes 34, 34<1> on the levers being simultaneously applied to the wharl. The belts are tensioned by a slidable carriage 8 at the opposite end of the machine from that at which the driving-pulley 4 is arranged. The arrangement may be as shown for the belt 3, or, if a larger range of adjustment is required, an extra fixed pulley 15 may be fitted and the path of the belt be as shown for the belt 3'. A single belt may be used for both sides of the machine, and the shaft of the driving-pulley 4 may be arranged so as drive sets of spindles extending on each side of it if the machine is too long for a single belt.
Patent GB-1169634-A (GB)
Title: Improvements in or relating to Devices for Agitating Materials
Inventor: WHEELER ERIC
IPC: B65D88/64
Filed: 1967-07-07
Abstract: 1,169,634. Mixing apparatus; stirrers. REDLER CONVEYORS Ltd. 19 Aug., 1968 [7 July, 1967], No. 31361/67. Heading B1C. [Also in Division B8] Stirrer 2 which is positioned within hopper 1 and leans against the inner wall thereof is carried by universal joint 3 driven via shaft 6 and gearing 8, 9 by driving shaft 10 so that agitator 2 rotates about its longitudinal axis and also progresses round the hopper. In addition the universal coupling 3 is positioned eccentric to shaft 6 so that in addition to the rotating movement the agitator 2 performs an axial reciprocating movement. The agitator also carries arms. 5 which rotate.
Patent GB-1078274-A (GB)
Title: Improvements relating to photographic products and processes
IPC: G03C8/04
Filed: 1964-08-04
Abstract: 1,078,274. Photographic materials and transfer processes. INTERNATIONAL POLAROID CORPORATION. Aug.4, 1964 [July 25. 1963 (2)], No.31462/64. Heading G2C. A photographic transfer process comprises imagewise exposing a silver halide emulsion, developing the latent image with an alkaline developer composition, contacting the developed emulsion with a reflective sheet of metal to transfer the unexhausted alkali thereto and change the reflective or polarizing properties of the metal sheet. Preferably a photographic assemblage is used which is free from silver halide solvent comprising the silver halide emulsion, a rupturable container of alkaline developer and a reflective metal sheet so connected that the above process is carried out e. g. as in Specification 684, 592. In the examples, a reflective layer of aluminium on a transparent support is used so that the alkali unused in the development of the silver halide attacks and removes the aluminium to produce a negative transparency when viewed by transmitted light or a positive print when viewed by reflected light. The developer composition preferably contains 5-nitrobenzimidazole to increase density of the image on the aluminium layer. The finished print may be used as printing plate as the unaltered areas are oleophilic and the changed areas hydrophilic. Alternatively a polarizing aluminium sheet such as described in Specification 1, 008, 580 may be used as the receptor material and used to produce images as above.
Patent GB-332837-A (GB)
IPC: B23Q16/02
Filed: 1929-10-16
Abstract: 332,837. Bohme, W. Oct. 19, 1928, [Convention date]. Dividing-instruments.-Means for dividing the circumference of a circular disc 17 into a number of equal parts comprises a cylinder &c. 1 mounted to rotate with the disc and provided with one or more helical grooves 2 engaged by pins on an axially movable nut 6 so that movement of the nut produces rotation of the cylinder and disc and vice versa. The nut is provided with a pointer 13 extending over a scale 5 arranged parallel to the axis of the cylinder and divided into the desired number of equal parts, the total length of the scale being equal to the pitch of the grooves 2. In the form shown the nut 6 is displaced axially by screw-threaded rods 8 passing through it and connected by gearing 9; alternatively the cylinder may be rotated directly. The disc 17 is marked by a scriber, &c. mounted on an arm 15.
Patent GB-886931-A (GB)
Title: Improvements in and relating to methods of producing isophorone
Filed: 1959-09-15
Abstract: <PICT:0886931/IV (b)/1> Isophorone is produced by heating a homogeneous solution of acetone, water and a small proportion (less than 1%) of an alkali, preferably potash, to a temperature between 150 DEG C. and 300 DEG C. under a pressure (20 to 100 atmospheres) sufficient to maintain the mixture in the liquid state, maintaining contact between the two resultant phases by emulsification, allowing the mixture p  discharged from the reactor to separate into two liquid phases, viz. an organic phase and an aqueous phase and separating isophorone from the organic phase, e.g. by distillation. Emulsification of the two separate phases, formed in the reactor due to the formation of isophorone and water, is achieved by mechanical means and/or by adding an emulsification agent, such as an aralkyl sulphonate, to the reaction-mixture.  In an example, a mixture of acetone, water (15% by weight) and NaOH (0.07%) is pumped up through heater 4 into the lower part of cylindrical reactor 5, which is filled with Raschig rings, and is surrounded by an electric-heating coil 7.  The reactor is maintained at a temperature of 190 DEG C., the pressure being 25 atmos.  The liquid in the reactor is given a pulsating movement by a pump 8, the stroke and frequency of this pump being adjustable.  In the example, the frequency is 120 per minute and the stroke is 1% of the reactor volume.  The residence-time of the emulsion in the reactor is 45 minutes.  The emulsion, leaving the reactor, passes through cooler 10, and then enters separator 12, via valve 11.  The organic phase is worked up by distillation, whereby isophorone is separated from unreacted acetone, and from the by-products which include mesityl oxide and diacetone alcohol.
Patent GB-193927-A (GB)
Title: A new or improved device for indicating periods of time
IPC: G04B19/28
Filed: 1921-11-24
Abstract: 193,927. Sadler, W. Nov. 24, 1921. Time - indicators. - A device for indicating when a predetermined period of time has elapsed comprises two pointers c, d on the rotatable bezel a of a watch. The, pointer c is set at a point on the dial corresponding to the commencement of a predetermined interval of time, and the coincidence of the minute hand with the, pointer d indicates that the time has elapsed. In a modification, one of the pointers is capable of adjustment along a slot in the bezel. Reference has been directed by the Comptroller to Specifications 16526/94, 27646/02, 5631/08, 17932/10, and 103,071.
Patent GB-747256-A (GB)
Title: Process for the refining of oils and fatty materials and apparatus for carrying out the process
IPC: C11B3/06
Filed: 1952-12-12
Abstract: In the refining of fatty oils dissolved in solvent media with a neutralizing agent by a process wherein a third, solvent substance, i.e., a liquid which dissolves partially in the solvent of the miscella and in the neutralizing agent, is also mixed with the crude miscella and the neutralizing agent, whereafter the mixture thus obtained is allowed to decant the upper miscella layer is washed with water or aqueous solvent and then treated with a solution of citric acid and salt, followed by decanting and evaporation of the upper phase.  The neutralized miscella is obtained in the decanter as an upper layer, with an intermediate layer of mucilaginous impurities, and a lower layer of soapstock in the third solvent substance.  The specified solvents for the oils comprise hexane, and azetropic mixtures containing hexane; the neutralizing agent may be caustic soda; and the third, solvent substance may be a solvent with at least one polar group and an aliphatic chain of 1 to 5 carbon atoms, such as an alcohol, a ketone, a glycol, or glycerol, particularly a shortchain secondary aliphatic alcohol, preferably isopropyl alcohol. The upper miscella layer is washed to remove traces of soapstock therein and treated with the solution of citric acid and salt to remove mucilage, followed by decanting and evaporation of the upper phase to obtain the purified oil.  The lower layer of soapstock in the third, solvent substance is washed with a liquid containing the solvent of the miscella and the third, solvent substance to remove traces of the neutralized miscella, and then acidified and evaporated to recover the fatty acids of the soapstock.  The various washing treatments are effected in the same column.  The intermediate mucilaginous layer is passed to a second decanter and the upper and lower layers added to the corresponding phases from the first decanter.  This second intermediate layer, with similar layers from the upper miscella layer treatment, is acidified and redecanted, and the upper layer is re-cycled to the original mixture, the remaining layers being fed to a distilling column, at the bottom of which are obtained fatty acids and the mucilaginous impurities.  The vapours from the evaporations are treated in a fractionating column and the condensates obtained are re-used in the process.
Patent GB-959199-A (GB)
Title: Improvements in or relating to rim brakes
IPC: B62L1/12
Filed: 1960-09-13
Abstract: 959,199. Cycle brakes. O. PLETSCHER, and T. PLETSCHER, [trading as GEB. PLETSCHER]. Sept. 13, 1960 [Sept. 18, 1959], No. 31571/60. Heading B7E. A cycle brake has a pair of brake shoes,' each articulated to a jaw of a brake-tong, which, when braking, move under the influence of frictional force on paths converging towards the plane of the wheel, the brake shoes being guided on said paths by tong jaws which pivot about tong pivot-pins inclined with respect to the plane of the wheel or perpendicular to the direction of the frictional force. Fig. 1 shows a friction pad 11 mounted in a holder 6 which rocks in a plane tangential to the wheel-rim circle against a spring 8 about a pivot 7. The pivot 7 is supported between the cheeks 4 of a U-shaped guide-piece secured at 1 to the end a brake calliper-arm (shown in section at 2). In Fig. 2 (not shown), the pad-holder is crimped in the guide-piece within which it is free to tilt against the restoring force of a rubber pad. The convergent motion of the pads may be achieved additionally and/or alternatively by causing the calliper-arms 30<SP>1</SP> to converge rearwardly about pivots 31 as in Fig. 4 and Fig. 11 (not shown). In other embodiments, as in Fig. 3 (also in Figs. 8, 12 and 13, not shown), the arms 24 have sufficient play to rock about their spindle 25. In the embodiment in Fig. 3, the pads are caused to converge by quick plates 21 on the arms 24<SP>1</SP> whose surfaces 21 press against the wheel-forks 23 and a spring 27 restores their position after use.
Patent GB-148265-A (GB)
Title: Improved manufacture of arc-welding electrodes
IPC: B23K35/40
Filed: 1919-12-16
Abstract: 148,265. Wilson Welder & Metals Co., (Assignees of Churchward, J.). July 21, 1919, [Convention date]. Heating by electricity.-The surface of a steel, iron, or other metal rod for use as an arc-welding electrode is roughened or otherwise prepared, for instance, by rusting or oxidizing, before the application thereto of a. weld-regulating substance such as calcium hydroxide, which is afterwards consolidated with the surface. The rod is immersed in hot sulphuric acid to remove scale, washed with water, and then sprayed with dilute sulphuric acid until a coating of rust has been formed, after which the rod is dipped several times in hot or cold milk of lime. The rod may be dried or partly dried between successive immersions in the lime bath. Consolidation of the calcium hydroxide with the rod may be improved by baking the rod at 300‹ F. and drawing through one or more wire-drawing dies. The diameter of the rod initially may be 0.205 inch, and, after drawing, 0.148 inch.
Patent GB-465885-A (GB)
Title: Manufacture of benzene derivatives containing halogenated methyl-groups
IPC: C07C17/14
Filed: 1935-11-15
Abstract: A benzene derivative containing at least two methyl groups and having two methyl groups in o-position is chlorinated so as to exchange five hydrogen atoms of the two o-methyl groups for chlorine, the chlorine is exchanged for fluorine, and the product again chlorinated to give an o-trifluoromethyl-difluorochloromethylbenzene, in which the chlorine may be again replaced by fluorine to give an o-dimethylbenzene hexafluoride.  The products are intermediates for dyestuffs, fungicides, and insecticides.  In examples: (1) o-xylene or 4-chloro-o-xylene or a dichloro-o-xylene is pentachlorinated, for example, according to the process described in Specification 464,859, the chlorine exchanged for fluorine, and the product again chlorinated to give 1-trifluoromethyl-2-difluorochloromethylbenzene or its 4-chlor or dichlor derivatives, which are then converted to the corresponding hexafluorides; (2) pseudocumene, or a chloro or dichloro derivative, is octachlorinated, the chlorine replaced by fluorine and the product again chlorinated to give a bis-trifluoromethyldifluorochloromethylbenzene, which is then converted to the corresponding nonofluoride; (3) durene is converted by way of its decachloride and decafluoride to a bis-trifluoromethyl-bis-difluorochloromethylbenzene, and thence to durene dodecafluoride.  Specification 395,227 also is referred to.
Patent GB-654509-A (GB)
Title: Improvements in and relating to the manufacture of flexible sealing rings
Inventor: HARRIS THOMAS ALFRED
IPC: B29C33/00
Filed: 1948-12-09
Abstract: 654,509. Joint-making packing. LUCAS, Ltd., J. Dec. 9, 1948, No. 31852. [Classes 122 (iii) and 122(v)] [Also in Group V] A flexible rubber sealing ring h is so shaped that the flashing k thereon resulting from moulding (see Group V) is located in a plane at about 45 degrees to the equatorial plane of the ring. The ring is shown disposed in a groove i surrounding a cylindrical shaft, spindle &c. j.
Patent GB-1075143-A (GB)
Title: Improvements in recovery of lignosulfonates from spent sulfite liquors
IPC: D21C11/00
Filed: 1964-08-06
Abstract: Lignosulphonates are recovered from spent sulphite liquors by treating with a quaternary ammonium salt to precipitate quaternary ammonium lignosulphonate, separating the precipitate, and adding methanol and ethanol and sodium or potassium chloride before or after the methanol or ethanol to dissove the quaternary ammonium lignosulphonate in the methanol or ethanol and to precipitate sodium or potassium lignosulphate from the resultant solution.  In a modification of the above process, the lignosulphonate may be fractionated on a molecular weight basis by adding successive amounts of water to an alcoholic solution of the quaternary ammonium lignosulphonate, the highest molecular weight fraction precipitating first.  The fractions are then redissolved in methanol or ethanol and finally precipitated by adding sodium or potassium chloride.  The quaternary ammonium lignosulphonate may be water washed and dried before dissolving in the alcohol and the final mother liquor may be evaporated to recover the quaternary ammonium salt.