baber/WOPTO huggingface dataset:
Patent GB-175121-A (GB)
Title: Method and mechanism for centrifugally separating substances
IPC: B04B11/02
Filed: 1920-11-29
Abstract: 175,121. Gill, H. A., (Sharples Specialty Co.). Nov. 29, 1920. Density separators; discharging.-Three liquids of different densities are separated centrifugally and the distances of the contact surfaces of the stratified liquids from the centre of rotation are controlled so that either of the contact surfaces of the intermediate liquid may vary substantially without varying its other surface. The separator may be used to separate petroleum oil and wax with brine as a carrier fluid. The howl 1 has a neck 2 suspended from the spindle 4 and three passages, or sets of passages, 5, 6, 7 lead outwards from the bowl. The liquids form layers in the order of their densities and the oil passes over the ring 9 into the cylindrical chamber 8 then through the passages 5 to the annular channel 10 from which it flows over a ring 11. The ring can be exchanged for one of different size and is secured by the collar 12. The wax passes through the passages 6 into the chamber 13 and then to the outlets 6' over the ring 14. The brine which is next to the periphery of the bowl passes through passages 7 to the annular channel 16 and discharges over the removable ring 17 held by the collar 18. In a modification, Fig. 5, oil flows over the inner edge of the ring 24 and is discharged through the passages 21, 22. The two heavier liquids, wax and brine, flow inside and outside the ring or dam 29 and pass together through the passages 25 to the annular channel 26 with a ring 27. The distances of the contact surfaces from the centre of rotation are varied by the substitution of rings of various internal diameters for the rings 11, 17. The apparatus may be used for separating oil from soap water in which the soap has been precipitated by salt.
Patent GB-1175137-A (GB)
Title: Method of Making a Hermetic Seal in a Casing for a Semiconductor Element and a Semiconductor Device Made Thereby
IPC: H01L23/04
Filed: 1967-07-21
Abstract: 1,175,137. Semi-conductor devices. HITACHI Ltd. 21 July, 1967 [5 Aug., 1966], No. 33732/67. Heading H1K. The casing 25 for a semi-conductor device has a sealing member 26 in one end thereof, the outer part 26a of which is adhered to the casing- wall, while the inner part 26b is not so adhered. In the point-contact diode shown, both the casing 25 and sealing member 26 are of glass, welded together only at their outer parts. The whisker 22, contacting the Si or Ge wafer 21, is of W, while the leads 23a, 23b, 24 are of dumet. A low melting point metal may be used instead of glass for the sealing member 26. In another embodiment comprising a junction diode, the sealing member (56), Fig. 5 (not shown), is of Cu or Fe/Ni/Co welded to the outer periphery of the glass casing (55), but spaced from the casing at the inner end of the sealing member (56) by a ceramic ring (56b). A metal or ceramic case having a glass bead sealing member may also be used. Phototransistors or thermistors may similarly be encased according to the invention.
Patent GB-632483-A (GB)
Title: Improvements relating to hoisting cradles
IPC: A23L3/10
Filed: 1947-12-20
Abstract: 632,483. Lifting-cradles. FOWLER. J. O. Dec. 20, 1947, No. 33734. [Class 78 (iv)] A cradle for holding batches of crates of filled and capped bottles of liquid is provided with a loading gauge which prevents the prescribed number of crates being loaded into the cradle in tiered formation unless the uppermost tier can be passed below the loading gauge. In the embodiment shown in Fig. 1, the cradle comprises a base 5 secured by straps 11 to a pair of channel bars 6 which are interconnected by straps 7 and channel bars 8. A rod 10 interconnecting the bars 8 serves for suspending the cradle from a lifting hook. The loading gauge consists of an angle iron 13 depending from hanger 12 secured to the bars 6. Specification 604,324, [Group VI], is referred to.
Patent GB-192873-A (GB)
Title: Improvements in blue-flame circular-wick burners
IPC: F23D3/00
Filed: 1921-12-15
Abstract: 192,873. Thorpe, A. E., and Walter, A. H. Dec. 15, 1921. Wick burners, annular.-Relates to blue-flame circular-wick burners having a central and an external draught and provided with a chimney h to enclose the flame ring and a perforated spreader f, the flame ring proceeding from the wick a upwardly through a well-defined tubular portion g<2> which freely surrounds the upper end of the wick and the boundary edge of the spreader. Air is supplied to the tubular portion g<2> and to a ring of perforations g<3> in the gallery g from an annular space ! surrounding the wick and having a perforated wall m, disposed obliquely and oppositely to a conical freely-perforated directing ring j which divides the space l into two chambers m, n and directs the air into the flame zone.
Patent GB-521564-A (GB)
Title: Improvements in and relating to typewriters
IPC: B41J35/30
Filed: 1938-11-21
Abstract: 521,564. Typewriters. GOTTSCHALK, P. B. Nov. 21, 1938, No. 33832. [Class 100 (iv)] Ink-ribbon mechanism; sheet feeding and guiding arrangements.-The platen is provided with one or more flaps for feeding a copy-sheet into position behind a duplicating-ribbon running in front of the printing line on the platen. The platen 1, Figs. 1 and 3, is provided with a stiff paper flap 2 which is of trapezoidal shape and is attached at the long edge 3 to the platen. .The flap may fit in a recess in the platen. A copy-sheet is placed in the flap, an original sheet and a transparent copy-sheet are placed on the apron 12, and the platen is turned, the copysheet. being thereby fed behind a duplicating- ribbon 8, and the original sheet and transparent  copy-sheet being fed between the duplicating- ribbon and the ordinary ribbon 10. The duplicating-ribbon runs in a U-rail 37 secured at each end to a plate 33 which is adjustably secured by screws 31, 32 to a yoke 29 secured by screws 27, 28 to a slide 25 mounted on a bracket 16 on the carriage. The screws 27, 28 normally rest in side-pockets 23, 24, Fig. 5, in a slot 22 in the slide bracket. To render ineffective the duplicating- ribbon, the slides 25 are lifted slightly and then allowed to drop. Each of the plates 33 is provided with a guide-roller 34 for the duplicating-ribbon. To prevent typing on the transparent copy-sheet, a strip for shielding the front of the duplicating-ribbon is attached to the plates 33 by inserting the ends of the strip in slits 42 in members 40 attached to or integral with the plates. To prevent the duplicating - ribbon from rising out of the guide-rail 38, the duplicating-ribbon is formed with a thickened part, for instance lines of stitching, which engage , an enlargement 38 at the bottom or side of the guide-rail. The duplicating-ribbon is preferably wound on the same spools 44, 45 as the ordinary ribbon 10. To prevent formation of slack during movement of the carriage, loops 49 in the duplicating-ribbon are engaged by rollers 70, 71 on spring-tensioned arms 46, 47 pivoted on segments 55 which are secured by screws 64 to the spoolhousings 63. The segments may carry also guide-rollers 57, 60, 59 for the duplicating and ordinary ribbons.
Patent GB-1511614-A (GB)
Title: Osmotically driven dispenser and process for making same
IPC: A61K9/00
Filed: 1976-08-13
Abstract: 1511614 Osmotically driven dispenser ALZA CORP 13 Aug 1976 [8 Sept 1975] 33833/76 Heading A5B [Also in Division Bl] An osmotically driven dispenser for dispensing an active agent composition to an environment that contains a fluid in which the active agent composition is soluble comprises an inner core formed of the active agent composition, an outer wall surrounding the core that is permeable to the fluid and substantially impermeable to the active agent composition and an outlet passageway in the wall through which the active agent composition in solution is dispensed and is characterised in that the core is made of a microporous material containing the active agent composition. Reference has been directed by the comptroller to Specification 1415210
Patent GB-165373-A (GB)
Title: Improvements in and relating to lifting and lowering mechanism for the tools of ploughs and like tilling implements
IPC: A01B63/28
Filed: 1920-11-30
Abstract: 165,373. Jensen, C. A., (Oliver Chilled Plow Works). Nov. 30, 1920. Ploughs; adjusting parts of implements.-A plough or like implement in which the power for lifting the tools at the headlands is taken from the main wheels 7, 9 has these wheels mounted on crank axles 5, 8 adjustably connected to each other through arms 38, 43 and a screwed rod 40. The axle 5 has secured to it, where it is bent round to form the crank-pin 6, Fig. 10, a dished casing 10 which is integral with a quickthreaded hub 16 co-operating with a correspondingly threaded laterally movable sleeve 18. The sleeve is provided with a projecting portion which engages in a recess in a rotatable member 23 having lateral projections 23a which when the sleeve 18 is moved sidewards are forced through openings 28 in a rotatable member 25 into similar openings 15 in the hub of the wheel 7. The member 25 is thus locked to and rotated with the wheel 7. A curved arm 29 connects the member 25 with the main frame and on rotation of the member 25 is caused to take up an approximately vertical position thus raising the implements. The sleeve 18 is given a lateral movement to operate the member 23 through its quick-threaded connection with the hub 16 when it is turned slightly by rocking a lever 30 pivoted on the casing 10 and having a pivoted latch 31 with a stop 33 adapted to engage a projection 34 on the member 18. A spring 20 on a rod 19a pivoted to the member 18 and passing into an opening in the casing 10 holds the member 18 in the position to which it has been moved by the lever. After the member 25 has been locked to the wheel it rotates with it for approximately three-quarters of a revolution, after which a projection 37 on the inner side of the member first engages and lifts the tail of the latch and then engages the projection 34 on the member 18. The member 18 is thus rotated in the reverse direction to its former rotation and is moved laterally to draw the projections 23a from the wheel hub and the member 25. By the time the member 25 is thus freed, the arm 29 has passed the dead-centre relative to the pin 6 and the plough moves with its implements in the raised position. To lower the implements the lever 30 is rocked slightly, the stop on its latch then engaging the projection 37 on the member 23, as shown in Fig. 12, and moving this member until the arm 29 passes the dead-centre when the ploughs will descend by their own weight.
Patent GB-447138-A (GB)
Title: Improvements in and relating to electrical insulators
IPC: H01B17/20
Filed: 1934-11-28
Abstract: 447,138. Insulators. JENKINS, G. M. O., Bodena, Arkley Drive, Arkley, Hertfordshire. Nov. 28, 1934, No. 34176. [Class 36] An insulator, particularly for supporting the feeder lines of radio relay systems, comprises a body portion adapted to be secured to a bolt or other support and provided with a plurality of rings adapted to receive the line conductors and rotatably mounted upon the outer surface of the body portion. As shown, a cylindrical body portion 10 having an annular flange 11 is supported by a shoulder 14 on a bolt 12 which passes through a central aperture in the body portion. The body portion, upon which is rotatably mounted a plurality of circumferentially grooved conductor-receiving rings 15, is secured to the bolt 1, 2 by a cap 13 which screws on the bolt. The cap has a conical projection 18 which fits tightly into a conical recess in the body portion. The rim of the cap may clamp the rings 15 against the flange 11. A bell-shaped member 17, which may be of synthetic resin, casein, rubber, or guttapercha, may be provided between the shoulder 14 and the body portion to increase the leakage path of the insulator. The rings 15 may each have a plurality of grooves, or the rings may be so shaped that a groove is formed between adjacent rings.
Patent GB-868247-A (GB)
Title: Improvements in or relating to dental instruments having means for delivering cooling or rinsing liquid
IPC: A61C1/00
Filed: 1959-10-08
Abstract: 868,247. Dental syringes. SIEMENSREINIGER-WERKE A.G. Oct. 8, 1959 [Oct. 11, 1958], No. 34187/59. Class 81 (2). A dental instrument, such as a hand piece or syringe, with means including a flexible pipe for delivering to the area to be treated or to a dental tool cooling or rinsing liquid, has a suction device for removing liquid remaining in the pipe when the liquid supply has been cut off. As shown, pipes 9 and 10 supply to an air turbine hand-piece compressed air at 1.5 to 2.5 atmospheres excess pressure and water at 0.2 to 0.5 atmospheres excess pressure, respectively. The pipes 9 and 10 have reduction valves 11 and 14, respectively, and shut-off valves 13 and 16 operated by electromagnets 12 and 15, and both pipes pass through a heating coil H. A waterstorage chamber 17 comprises a resilient diaphragm 18 which bears against a disc 23 and a compression-spring 24. A pipe 21 leads into the chamber from the pipe 9 and a pipe 26 is connected via branches 27, 28 with the pipe 10. When the hand-piece is brought into use, the compressed air is first switched on and some passes through the pipe 21, depressing the diaphragm 18 against the action of the spring 24, to close the pipe 26. The water supply is then switched on and being at a lower pressure than the air, water flows through the pipe 10 to the hand-piece, none passing into the branch 27. The water supply is switched off first and then the compressed air which relieves the pressure on the diaphragm 18. Under the action of the spring 24 the diaphragm is raised, opening the pipe 26. Any water in the pipe 10 is sucked through the branch 27 and a non-return valve 29 into the chamber 17. When the hand-piece is used again the diaphragm is depressed and the water is forced from the chamber 17 through a non-return valve 30 to the pipe 10. Screw means (not shown) enable the disc 23 to be adjusted to vary the capacity of the chamber 17. The arrangement described may be used in a syringe for dispensing a water/air mixture if there is a pressure difference between the minimum air and maximum water pressures. If the pressures are equal and in electrically-driven hand-pieces an electromagnet operates the diaphragm 18.
Patent GB-1482777-A (GB)
Title: Dispersion hardened aluminium or aluminium alloy
IPC: C22C1/10
Filed: 1974-08-02
Abstract: 1482777 Forming dispersion hardened  materials VEREINIGTE METALLWERKE RANSHOFEN-BERNDORF A G 2 Aug 1974 [2 Aug 1973] 34261/74 Heading C7D A dispersion-hardened metals is produced by grinding Al or Al alloy powder with at least one substance, which reacts with the Al to form a  carbide, until the reaction is complete and the carbide(s) are uniformly distributed, and then compacting. Suitable reacting substances include paraffin, carbon black, sugar, starch, hydrocarbons. In Examples, the following mixtures are ground and extruded: (1) Al + carbon black; (2) Al + paraffin; and (3) Al + Cu + Mn + Mg + carbon black. The extrusion temperature 550‹C. The ground mixture may also be compacted by rolling, hot pressing or isostatically.
Patent GB-1122767-A (GB)
Title: Improvements in or relating to synchronising arrangements for free running oscillators
IPC: H03L7/12
Filed: 1967-07-26
Abstract: 1,122,767. Automatic phase control systems. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 26 July, 1967 [11 Aug., 1966], No. 34417/67. Heading H3A. An automatic phase control system wherein a sweep generator 6 is initially coupled to control an oscillator 1 to bring it within the lock-in range of the control loop, is characterized in that the generator 6 is initially coupled through a switch 5 to the output of a phase discriminator 2 and control device 3 through one or more diodes 7. If the generator 6 starts at a low increasing voltage, the diode 7 conducts until the lock-in range is reached; at this point the output of the control device 3 rises suddenly to the required tuning voltage and reverse-biases the diode 7 which remains non-conducting until the output voltage of the generator 6 exceeds the tuning voltage by the voltage drop U D  across the diode. This period of non-conduction of the diode allows time for a frequency-sensitive unit 4 to open the switch 5 and disconnect the sweep voltage. If the sweep operates in either direction a pair of parallel oppositely-poled diodes may be used. The value of U D  may be increased by using a Zener diode or two oppositely poled Zener diodes in series.
Patent GB-815840-A (GB)
Title: New sulphur dyestuffs of the dioxazine series
IPC: C09B49/06
Filed: 1956-11-12
Abstract: The invention comprises sulphur dyestuffs of the dioxazine series and a process for making them by transforming a dioxazine compound of the general formula <FORM:0815840/IV (c)/1> (wherein R is an iso- or heterocyclic residue which may be substituted and X is is halogen) or a sulphonic acid thereof into a corresponding sulphochloride and treating it with an acidic reducing agent.  The sulphochlorides are made by treating a dioxazine of the above formula with chlorosulphonic acid at up to 150 DEG  C. or by treating a sulphonic acid thereof with phosphorus pentachloride or chlorosulphonic acid. Acid reducing agents specified are mixtures of water and hydrochloric acid with iron powder, zinc dust or stannous chloride.  In examples, the dioxazines derived from chloranil and (1) aniline; (2) 1-amino-2-methoxy-5-methyl-benzene; (3) dehydrothiotoluidine followed by ring closure with organic acid halides, phosphorus halides or ferric chloride in nitrobenzene, and the corresponding dioxazine containing no methyl substituents, (4) a - and b -naphthylamine; (5) 2-aminodiphenylene oxide or 2-amino-3-methoxydiphenylene oxide; (6) p-aminodiphenyl; (7) o-aminodiphenyl ether; (8) 3-aminocarbazole and 3-amino-N-ethyl-carbazole; (9) 3-aminopyrene; (10) 2-amino-chrysene; and (11) 2-aminoflourene followed by ring closure by boiling in nitrobenzene, are treated with chlorosulphonic acid and reduced.  The dyestuffs dye vegetable fibres such as cotton red, purple, violet and blue shades from a sodium sulphide vat followed by air or potassium dichromate oxidation.  The shades may be brightened and fastness improved by an aftertreatment with perborates, percarbonates or potassium dichromate-acetic acid-copper sulphate.  Specifications 886/1912 [Class 2 (Iii)], and 416,887 are referred to.
Patent GB-367827-A (GB)
Title: Improvements in or relating to frequency measuring and regulating devices and apparatus for use therewith
IPC: G01R23/04
Filed: 1930-11-17
Abstract: 367,827. Wireless transmitting systems. SOC. FRANÃAISE RADIO-ELECTRIQUE, 79, Boulevard Haussmann, Paris. Nov. 17, 1930, No. 34605. Convention date, Nov. 15, 1929. [Class 40 (v).] In a frequency meter for high-frequency currents capable of detecting variations in frequency of the order of one hundredthousandth, and applicable for controlling a wireless transmitter, the variations in phase which an induced current undergoes in a tuned circuit in the neighbourhood of resonance are indicated. As shown in Fig. 1, two inductances 1, 2, preferably equal, are connected as shown so as to form an aperiodic circuit consisting of the inductances 1, 2 in series with one another, and a tuned circuit comprising these inductances in parallel with one another and with a condenser 3. A coil 4 traversed by the current the frequency of which is to be measured is coupled slightly more closely to one of the coils, 1, 2 than to the other, so as to induce currents in the aperiodic and tuned circuits in quadrature with one another and approximately equal in magnitude. Detectors 5 are connected in shunt to a part of each inductance 1, 2 and so connected as to measure the difference of the currents in these coils. Each detector 5 may be a thermoelectric couple, crystal detector, thermionic valve, &c. The detectors may be connected so that their electromotive forces oppose one another in an indicating circuit, so that the difference is measured directly. A thermal detector constructed as shown in Fig. 4 may be employed, wherein a heater 6 is wound on a small quartz rod and placed in the focus of an ellipsoid reflector 7, at the other focus of which is situated a thermo-electric junction 8. The differential potential given by the detectors 5 may be amplified by a valve amplifier, and may be applied for controlling the frequency of the generator. This may be effected by applying the amplified potential across a saturated iron-core inductance which is provided with a secondary winding connected in the tuning circuit of the transmitter. For waves of very high frequency an arrangement as shown in Fig. 3 may be employed, in which the inductances 1, 2 are combined into a single closed loop across which the condenser 3 is symmetrically connected. The detectors 5 may be connected as shown, or their junction may be connected to a point on the wire leading to the condenser 3. The branch containing the condenser 3 may also include an inductance.
Patent GB-887993-A (GB)
Title: Improvements in inflatable boats and the like
Inventor: NICHOLL GEORGE WILLIAM ROBERT
IPC: B63B7/08
Filed: 1959-10-13
Abstract: 887,993. Inflatable boats. AVON INDIA RUBBER CO. Ltd. Oct. 10, 1960 [Oct. 13, 1959], No. 34699/59. Class 113. An access aperture A is provided in the fabric of the main structure B of an inflatable boat. The aperture is reinforced on the outside to form collar D. Patch E is provided as a closure member, is attached by adhesive to the collar and can be removed when access is required to the interior of the structure, a new patch being readily attached afterwards.
Patent GB-862263-A (GB)
Title: A new or improved instrument for performing line sighting operations
IPC: G01C5/00
Filed: 1956-11-14
Abstract: 862,263. Surveying instruments. ROLLINS, J. G. Feb. 13, 1958 [Nov. 14, 1956], No. 34754/56. Class 97(2) An instrument comprises a sighting member and a mount therefor providing for angular adjustment in elevation and azimuth, indicating means for determining when the azimuth axis is truly vertical, stop means on the mount which enable the sighting member to be traversed in azimuth through a known angle, the sighting member and the mount being arranged so that the sighting member can be arranged for sighting down the azimuth axis. In the form shown the sighting device 50 comprises a tube with an aperture 54 at one end and cross wires at the other and carries a spirit level 63. It is rotatable about a horizontal axis defined by bearings formed by balls carried by socket screws 41 in uprights 40 on a member 19 rotatable in azimuth. A member 45 is suspended from the same balls and carries a spring 62 and a screw 60 bearing on the sighting device 50 which can be given a fine adjustment in elevation by operating the screw. A member 20 is attached to a screwed spigot 24 secured to a tripod head 12. A union nut 30 secures to this member a disc 26 which has an upstanding tubular spigot 25 on which the member 19 rotates and to which is attached a socket plate 28 having various angularly disposed apertures which may be engaged by a spring loaded plunger 36 carried by the member 19. The various parts of the mounting have apertures aligned with the tubular spigot 25 so that the device 50 may be sighted vertically downwards. It may be adjusted to vertical by a spirit level 49, normally stowed on the member 45, placed over its upper end. In this position of the sighting device a detachable cover for the instrument may be fitted to dip on to a flange 67 projecting from the member 20. When a vertical sight is not being taken the spigot 25 may be closed by a plug 71 carrying a plumb line 73.