baber/WOPTO huggingface dataset:
Patent GB-822549-A (GB)
Title: Process for separating paraffins from hydrocarbon oils
Filed: 1955-09-19
Abstract: Paraffinic hydrocarbons are separated from hydrocarbon oils by mixing a hot solution of urea containing 10-40 volume per cent water (the amount of water in the solution being less than that present in a saturated aqueous urea solution at the temperature desired for adduct formation) with the oil together with an oil solvent having a boiling point not higher than the temperature desired for adduct formation; the temperature of the mixture is controlled by evaporating a part of the solvent while vigorously agitating the mixture and the granular adduct formed between part of the hydrocarbons and urea is separated and decomposed.  Oil solvents referred to are hydrocarbons, e.g. butane, pentane and pentadiene and fluorinated or chlorinated hydrocarbons, e.g. methylene chloride of which 50-200%, per volume oil, may be used. The adduct may be separated from the mixture by settling, sieving or filtration and then decomposed by heating above 70 DEG  C., by adding hot aqueous methylene chloride recovered from the urea separated from the adduct, and heating both indirectly and by introduction of steam.  The urea recovered from the decomposed adduct is concentrated and reused.  In the example, paraffin wax is separated from spindle oil using a 30% aqueous solution of urea (saturated at 70 DEG  C.) and methylene chloride as oil solvent.ALSO:Paraffinic hydrocarbons or hydrocarbon derivatives thereof are separated from hydrocarbon oils by mixing the oil with a hot aqueous urea solution (containing 10-40% by volume of water, the amount of water in the solution, however, being less than that present in a saturated aqueous urea solution at the temperature desired for adduct formation) and with an oil solvent (having a boiling-point not higher than the temperature desired for adduct formation), vigorously agitating the mixture to bring it to and maintain it at the temperature desired for adduct formation by heat exchange between the hotter and cooler liquids and by the abstraction of heat caused by evaporation of part of the oil solvent, separating the granular adduct formed, removing solvent from the oil solution, and decomposing the adduct into paraffinic hydrocarbons or derivatives thereof and urea solution.  Oil solvents referred to are hydrocarbons (e.g. butane, pentane or pentadiene) and fluorinated or chlorinated hydrocarbons (e.g. methylene chloride).  The oil solvent evaporated from the mixture may be condensed and re-used, while the urea solution obtained by decomposition of the adduct may also be re-used.
Patent GB-170013-A (GB)
Title: Apparatus for the influencing of electric waves produced by cathodetubes, and more especially for telephony without wires or along wire
IPC: H03C1/20
Filed: 1920-07-10
Abstract: 170,013. Huth Ges., Dr. E. F., and K³hn, L. Dec. 2, 1919, [Convention date]. Addition to 148,801. Thermionic modulating systems.-The output of a valve oscillator is modulated in accordance with speech or other signals by connecting a resistance in shunt to the valve battery, such resistance being varied by the signal producer. High-frequency current is prevented from passing through the resistance or the battery by providing a condenser in shunt, which condenser does not form part of the oscillatory output circuit of the valve oscillator. The variable resistance may comprise a valve with its grid potential controlled by the signal producer. The latter arrangement is shown in Fig. 2 in which the plate circuit of the oscillating valve is. energized by a battery q, which is also connected across the main electrodes of the modulating valve b, the grid of which is influenced by a microphone. A condenser k separate from the condenser of the oscillatory circuit z is connected across the battery q and forms a short-circuit for the high-frequency current. A choke-coil d is preferably connected in the leads of the battery q, and tends to keep the battery current constant during the fluctuations of the resistance of the tube b.
Patent GB-651786-A (GB)
Title: Improvements in or relating to a supporting garment
IPC: A61F5/03
Filed: 1947-10-07
Abstract: 651,786. Abdominal belts. BERGER BROS. CO. Oct. 7,1947, No. 26904. Convention date, April 17. [Class 141] An abdominal belt or girdle comprises separate front and back sections of inelastic material with vertical stiffeners, a plurality of relatively wide tabs secured at each side of one or both sections, straps secured to the tabs of one section connecting them individually to the other section and an extension member projecting upwardly from the front section. As shown, the front section 11 is provided with tabs 14, 15 which are superimposed on a wing member 16, and the! back section 10 is provided with forwardly extending tabs 27, 28, 29. Adjustable straps 20, connect to loops 19 on the front section, are provided with loops 22 which swivelly engage buttons 23 secured to the tabs 27, 28, 29. The upper edge of the front section 11 overlaps the extension 30 which is secured at spaced points 31, 32. Straps 33 connect the extension 30 to the tabs 29.
Patent GB-809253-A (GB)
Title: Electric switching device for effecting sequential switching operations
IPC: H01H25/00
Filed: 1955-09-20
Abstract: 809,253. Regulating switches. LICENTIA PATENT-VERWALTUNGS G.m.b.H. Sept. 20, 1955 (Sept. 20, 1954; Oct. 18, 1954 (2)], No. 26907/55. Class 38 (5). A switch, Figs. 2, 3, for controlling, e.g. a number of resistances, comprises a swashplate T, pivoted at S and having a contact K which engages in succession fixed contacts B ... E upon application of a force P at point A, the contact pressure being provided by a spring F. In another construction, Fig. 4, the plate T is pivoted by pins H, N and the contact pressure produced by a spring i.
Patent GB-1211147-A (GB)
Title: Blasting apparatus
Inventor: SCHEGOLEVSKY MIRON ABRAMOVICH
IPC: E21C37/16
Filed: 1968-06-06
Abstract: 1,211,147. Splitting rocks. TSENTRALNY NAUCHNO - ISSLEDOVATELSKY I PROEKTNO - KONSTRUKTORSKY INSTITUT PODZEMNOGO I SHAKHTNOGO STROITELSTVA. 6 June, 1968, No. 27024/68. Heading B5E. [Also in Divisions B3, C1 and E1] An explosion apparatus employing a liquid explosive having a fuel component and an oxidizer fired as a mixture by a liquid initiator, comprises a head having at least one fuel channel 12, at least one oxidizer channel 11 and at least one initiator channel 13, wherein at least one of the fuel channels 12 or the oxidizer channels 11 converges with the initiator channel or channels 13 inside the head to form a common outlet 20. The apparatus may be used for destroying rocks or explosive forming in a liquid. The oxidizer may be nitrogen tetroxide, nitric acid or tetranitromethane, the fuel kerosene, benzene, aniline or toluene, and the initiator a eutectic alloy of potassium and sodium or hydrazine. In the example, the fuel channel 12 converges with the initiator channel 13 at an orifice 17 which is controlled by a valve 18 operated by a drive 19. The channel 11 opens into an annular recess 21 connected by inclined passages 22 with the end of the head. The oxidizer and fuel are supplied continuously and the initiator periodically under control of the valve 18, the operation time of which should be shorter than the elapsed time from the start of delivery of the initiator to the moment of explosion. In general, nitrobenzene cannot be used to protect the nozzle 17.
Patent GB-330468-A (GB)
Title: Improvements in or relating to reflectors of glass or other material
IPC: F21S13/00
Filed: 1929-09-05
Abstract: 330,468. Schneider, B. Sept. 5, 1929. Reflectors. - In an internally or externally silvered reflector having its lower edge disposed obliquely to its axis, and a diffusing cover plate extending from its shorter side, the diffusing plate 4 is made integrally with the reflector 1 from one and the same piece of glass, porcelain, or similar translucent material. The boundary line 5 of the plate 4 may be straight or curved and the plate may cover substantially half, or a little more, of the mouth of the reflector. The plate may be made translucent as by matting, corrugating, or roughing up its outer surface.
Patent GB-923725-A (GB)
Title: Extrusion apparatus
IPC: B29C48/09
Filed: 1961-07-26
Abstract: 923,725. Programmed control systems. J. H. LEMELSON. July 26, 1961, No. 27150/61. Class 38 (6). [Also in Groups V and XXII] A closed loop magnetic tape 200 has command signals recorded on a number of tracks to effect a predetermined sequence of actions in an extrusion machine (see Group V) to produce extrusions of varying cross-section. Control of the lineal servo devices 18 and 27 which respectively control the degree of movement and speed of the mandrel 16 and the extrusion piston 20 is effected by means of an electro-hydraulic pump servo system. Analogue signals of varying amplitude are recorded on the magnetic tape 200 arid are reproduced to provide a time variable voltage used to control the variable displacement hydraulic pump 206. A potentiometer 28 coupled to a ram shaft 26 of the piston 20 provides a feedback to control block 203 (which includes the pump 206). Hydraulic cylinders 18 and 32 controlling the mandrel piston 16 and a stop blade 30 are controlled by systems 203a and 203b from respective tracks on the tape 200 and have feedbacks fed along lines 209<SP>1</SP> and 2101 respectively. The extrusion 15 is drawn off by rollers 28, 29 controlled by control 203c from a track on the tape 200 and has a feedback tachometer 29T driven by the shaft of motor 29<SP>1</SP>.
Patent GB-1504233-A (GB)
Title: Assembly for maintaining a separation between two electric conductors
IPC: H02G5/06
Filed: 1976-06-30
Abstract: 1504233 Gas insulated cables COMPAGNIE GENERALE D'ELECTRICITE SA 30 June 1976 [22 July 1975] 27204/76 Heading H1A [Also in Division H2] An arrangement for spacing two electrical conductors at different voltages e.g. the inner conductor 52 and the outer conductor 54 of a fluid (e.g. SF 6 ) insulated conductor comprises a spacer 56 engaging zones on the respective conductors, at least the zone 60 on one conductor being recessed so as to be further from the other conductor than the remainder of the surface of the one conductor, the edges of the recessed zone being connected to the remainder of its surface by curved portions 58 and the spacer having a higher permittivity adjacent the one conductor than it has further away from the one conductor. As shown, an insert 80 provides the higher permittivity. In Figs. 2 and 3 (not shown) the spacer is parallel-sided and the insert extends over the full width of the spacer and the recessed zone. The permittivity of the insert is preferably at least five times that of the remainder of the spacer; to this end, if the major part of the insert is of polyethylene the insert may comprise polyethylene doped with barium titanate.
Patent GB-924633-A (GB)
Title: Improvements in and relating to the construction of electrical and other apparatus
Inventor: HOUGHTON DAVID OWEN
IPC: H05K7/18
Filed: 1960-08-05
Abstract: 924,633. Assemblies for telecommunications. DATUM METAL PRODUCTS Ltd. Nov. 3, 1961 [Aug. 5, 1960], No. 27218/60. Class 37. A chassis for housing electrical equipment comprises upper and lower rectangular frames 3 each made of channel members with the flanges extending inwardly of the frame. The two frames are spaced by a dished plate 4 attached to the channel members by side walls 4A, 4B and from members 3 of angle section attached at 5B to the channel members one flange of each member extending sideways at 5A to provide mounting surfaces for a front panel 11 provided with handles 10. The sides of the chassis are closed by panels 6 with flanges 6A 6B which may be pivoted about screws 7 to allow access to equipment in the chassis but are normally held in position by clips 8. Fig. 1 shows the chassis mounted in a console, members 14 being provided for attachment by plate 15 to telescopic runners 2.
Patent GB-1433635-A (GB)
Title: Metal pouring nozzles
IPC: B22D41/50
Filed: 1973-06-07
Abstract: 1433635 Pouring nozzles for ladles FOSECO INTERNATIONAL Ltd 31 May 1974 [7 June 1973] 27284/73 Heading F4B A pouring nozzle comprises an inner abrasion resistant sleeve secured at both ends to an outer refractory body so as to leave a wholly enclosed annular space which is filled with heat insulating material of at least 50% porosity. The inner sleeve 1 may be of zirconia or conindum and is cemented to the outer sleeve 3 of chamotte. The annular space 2 may be filled with a reticulate ceramic material. Either or both parts of the nozzle may be formed of particulate refractory material, which may be bonded with a colloidal oxide hydrosol, and may be fired.
Patent GB-861709-A (GB)
Title: Improvements in and relating to methods of manufacturing commutators for electric motors and generators
Inventor: VICKERY ERNEST HERBERT WARD
IPC: H01R43/08
Filed: 1958-08-26
Abstract: 861,709. Commutators for dynamo-electric machines. WATLIFF CO. Ltd. Aug. 25, 1959 [Aug. 26, 1958], No. 27389/58. Class 35. [Also in Group XXII] A commutator, Fig. 4, is made by impact extruding a rectangular strip or strips of brass, copper or like conducting metal, each having a thin web 1, Fig. 2, a plurality of raised parallel ridges 2 and one or more raised studs 3, deforming the studs, bending the strip or strips into a cylinder, Fig. 4, with the ridges and studs projecting inwardly, moulding a hardenable plastic insulating material into the cylinder with the studs 3 keyed therein, and finally dividing the cylinder into segments. The studs 3, which are of elliptical cross-section, are deformed by bifurcating, Fig. 4, or by forming mushroom heads thereon. A number of strips may be fastened end-to-end by soldering or by metal foil secured by soldering or adhesive and after bending, the ends of the strip or strips are joined together in a similar manner to form a continuous cylinder. A steel bush 5 is inserted before moulding the insulating material. Finally the cylinder is divided into segments by machining away the outer web 1 and/or by sawcutting. Raised projections may be provided on the side of the strip opposite the ridges so as to provide external connecting-lugs on the commutator.
Patent GB-173080-A (GB)
Title: Improved mechanism for automatically operating apparatus at a pre-determined time
IPC: G04F3/02
Filed: 1920-09-27
Abstract: 173,080. Coleman, M. Sept. 27, 1920. Clockwork-actuated valves.-Relates to clockwork-operated mechanism for turning on and turning off a gas or water valve at predetermined times. The device is described for operating switches and as so applied consists of " on " and " off " actuating rods d carrying transverse pins e<1> whereby the rods are retained in an inoperative position in cam slots in cylinders c, c<1> against the action of springs, and tripping mechanisms consisting of attachments to the alarm winding mechanisms of ordinary alarm clocks which engage the pins and release the actuating rods to move the switch into the " on " or " off " position. The tube c, Fig. 6, of the closing mechanism is formed with slots shaped as shown, and normally the rod d is retained by the engagement of its pin e<1> with the cut-away part h against the torsion and compression of a spiral spring connected at one end to the pin and at the other anchored adjustably for tension purposes in one of a number of slots e<5> in an end cap c<3> of the tube. When the bent attachment i on the closing alarm clock engages the pin e<1>, the rod and pin are first rotated bringing the bent operating end of the rod over the switch arm, then the pin is released so that the compressed spring may depress the rod to close the switch and finally further rotated to carry the inoperative end of the rod away from the switch arm. The circuit breaking mechanism is similar except that the operating rod moves upwards.
Patent GB-734029-A (GB)
Title: Improvements in or relating to yarn winding
Inventor: HALKYARD HAROLD
IPC: B65H54/28
Filed: 1952-10-31
Abstract: 734,029. Winding yarn. BRITISH CELANESE, Ltd. Oct. 29, 1953 [Oct. 31, 1952], No. 27447 /52. Classes 120(2) and 120(3). Cones of yarn are wound by a method comprising effecting each traverse of yarn from the small to the large end of the cone in a time shorter by up to one-third than the preceding or succeeding traverse from the large to the small end. A cone-winding machine for carrying the method into effect comprises a traverse cam having two parts 4, 5 of helical form, the part 4 covering an angle of, say, 198 degrees about the shaft 12 and the part 5 an angle of about 162 degrees, i.e. two-elevenths less than the former angle. The gear ratio between cam shaft 12 and spindle 15 is preferably such that the traverse in one direction is effected in less than 2À75 revolutions of the cone and in the other direction in more than 2À75 revolutions of the cone.
Patent GB-464029-A (GB)
Title: Improvements in and relating to electric selectors set by impulses
IPC: H01H67/12
Filed: 1935-10-04
Abstract: 464,029. Automatic exchange switches. CLAYTON, C. E. EVERY-. (Nationale Telephon-und Telegraphie Ges.) Oct. 4, 1935, No. 27504. [Class 40 (iv)] In a panel switch set by impulses and having a number of sets of wipers, one of which is selected for tripping by the first movement of the wiper shaft, e.g. as described in Specification 383,794, each wiper set is common to two groups and each impulse of the first digit other than the first causes the wiper shaft to make two steps. This may be effected by splitting the received impulses with the aid of condensers or by means of contacts closed by the wiper shaft and controlling a local stepping circuit. As shown, the first impulse of the first digit moves the wiper shaft a distance r to bring wiper set A into the tripping position for the group L1. Each subsequent impulse moves the shaft two steps so that wiper sets B ... E come successively into the tripping position for groups L2 ... L5 and after six impulses set A comes into the tripping position for the group L6 and so on. In a modification, a switch has two sets of five wiper sets, each set being arranged as described above. The set of five from which the wiper set to be used is to be selected is determined by giving or not giving a preliminary step to the wiper shaft. Similar arrangements can be made in 300 and 400 line switches.
Patent GB-172607-A (GB)
Title: Improvements in umbrellas or the like
IPC: A45B25/08
Filed: 1921-10-17
Abstract: 172,607. Lewis, J. M. Dec. 4, 1920, [Convention date]. Holding closed; joints. -A key-operated locking device is located in the tubular rod of an umbrella &c. to lock the sliding sleeve or runner against movement and thereby to prevent the umbrella from being opened. When the key A is inserted in the lock casing 14 and rotated, a rod 17, continuous with a spiral 18 and a rod 20, is rotated. A cross-pin 19 mounted in the tubular rod engages the spiral 18, so that rotation of the rod 17 causes a head 21 on the end of the rod 20 to be wedged behind the usual pivoted tongue 7 so that it cannot be depressed to release the runner 2. The stretcher may be connected to the runnerby ball-and-socket joints, as at 5.
Patent GB-364109-A (GB)
Title: Improvements in or relating to devices for containing and applying medicaments, antiseptics, and the like
IPC: A61M35/00
Filed: 1930-09-16
Abstract: 364,109. Applying liquids to the skin. FELL, J., 87, Bold Street, Liverpool. Sept. 16, 1930, Nos. 27598 and 31486. [Class 81 (ii).] A readily refillable vest pocket container for tincture of iodine or other liquid to be applied to the skin, comprises a barrel a, open at one end, which is screw-threaded internally tc receive the nozzle or tip d, and externally to receive a cap g having an indiarubber pad h to seal the container when not in use. The tip a has a large hollow interior communicating with an axial outlet passage e opening on to a flattened surface at the end of the tip d. The passage e is about 1 mm. in length and from 0À75 to 1 -5 mm. in diameter so that the contained liquid exudes therefrom when the tip is passed over the skin in contact therewith. In a modification the container is constructed after the manner of a sac self-filling pen, and in a further modification the barrel is divided by a central transverse partition and is fitted with a nozzle and. cap at each end. According to the Provisional Specification the indiarubber pad h may be omitted and a joint made between an inclined annular surface on the tip d and a shoulder within the cap g.
Patent GB-1356772-A (GB)
Title: Magnetic recording and or reproducing apparatus
IPC: H04N5/781
Filed: 1972-06-13
Abstract: 1356772 Recording and playback of television signals SONY CORP 13 June 1972 [15 June 1971 8 July 1971] 27645/72 Heading G5R The drive shaft 4 of the rotary head 3c of a helical-scan video tape recorder carries a pliant magnetic record disc 6 which co-operates with a stationary magnetic head 26, e.g. in the production of a still picture by the recording and repeated reproduction of a selected field or frame of the television signals recorded by the tape recorder. The position of the stationary head 26 is adjustable by means of three screws 33a, 33b, 33c bearing on its supporting bracket 28 which is secured to a support plate 13, which confronts the magnetic surface of the record disc 6 and through which the stationary head 26 protrudes. The support plate 13 is mounted on three adjustable legs 16, 17, 18. A groove 37 in the support plate 13 and baffles 39, 40 are provided as described in Specification 1,356,773.
Patent GB-963737-A (GB)
Title: Improvements in or relating to papermachine felts and like endless woven bands
IPC: D21F1/00
Filed: 1959-08-13
Abstract: An endless woven fabric suitable for use as a papermachine felt is made at least predominantly of synthetic fibre-forming material, and is characterized in that the fabric is woven of warp yarns composed at least predominantly of synthetic fibreforming material in the form of filaments or staplelength fibre and of weft yarns consisting at least predominantly of a spun blend of crimped synthetic fibres relatively non-shrinkable by heat and other synthetic fibres which are initially capable of high lengthwise shrinkage when subjected to heat, but have been shrunk in situ after weaving.  The spin blend comprises a mixture of different fibres in one and the same spun yarn as distinct from a twisted or doubled combination of different yarns or filaments. The shrinkable fibres may be of polyester; the non-shrinkable fibres may be of nylon or polyester.  The warp yarns may be of hightenacity continuous-filament nylon or polyester, a core of continuous nylon or polyester fibres overwrapped with textured continuous filaments of nylon or polyester, or are spun from crimped or uncrimped synthetic staple fibres such as nylon or polyester.  The fabric may be milled and may incorporate up to 30% of wool fibres, e.g. in the warp yarns as a wrapping round a core of continuous filament nylon or polyester, or in the weft. One or both surfaces may be raised and needled before or after shrinking or both.  The fabric may be woven endless, or woven as a length and the ends joined.  The terms "warp" and "weft" relate to yarns along and across the finished endless product. Specification 810,003 is referred to.
Patent GB-174682-A (GB)
Title: Improvements relating to differential gear for motor vehicles
IPC: F16H48/08
Filed: 1920-11-17
Abstract: 174,682. Wood, R. S. Nov. 17, 1920. Differential or balance gearing for motor vehicles is arranged upon a solid axle. In the form shown in Figs. 1 and 4, the gearing drives differentially two dog-ended sleeves h loose upon the solid axle j. In another form shown in Fig. 7, the solid axle x itself, and a sleeve hupon it, are the driven elements. Reference has been directed by the Comptroller to Specifications 4236/83, [Class 136, Velocipedes], 21147/92, 24196/06, 28106/06, 480/09, and 107,486.