baber/WOPTO huggingface dataset:
Patent GB-483088-A (GB)
Title: Improvements in and relating to barrier plane rectifying cells and photo-electric cells
IPC: H01L21/16
Filed: 1936-10-13
Abstract: 483,088. Static contact rectifiers. ROTHER, F. Oct. 13, 1936, No. 27782. [Class 37] [Also in Groups XL and XXII] The efficiency of barrier plane rectifying cells is increased by reducing the thickness of the semi-conducting oxide coating on the mother metal. To enable this to be done a smooth surface is obtained on the base plate by a stamping process which produces a stamping glass. In addition a special heat treatment may be employed to convert the mother metal into a highly crystalline condition before the formation of the barrier layer ; the metal being heated for a short time near its melting point in a neutral, reducing or slightly oxidizing atmosphere or in vacuo; this being followed by slow cooling in absence of oxygen. The plates may also be coated with one or more layers of a foreign metal before the formation of the barrier plane, as described in Specification 403,041, [Group XL]. The barrier plane is produced by heating the mother metal, in the case of copper, to about 950‹ C., after which it is held for a period at a temperature between 400 and 800‹ C. and finally quenched in a liquid which has a reducing action.
Patent GB-1303488-A (GB)
IPC: C09K11/02
Filed: 1970-06-09
Abstract: 1303488 Uses of luminescence PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 9 June 1970 [12 June 1969] 27841/70 Heading C4S [Also in.Division G1] A sheet-shaped phosphor screen for thermography comprises a phosphor layer on an elastic rubber film the overall thickness of the two layers being from 0À015 to 0À05 mm. and the phosphor emitting visible light on U.V. excitation with an intensity depending on temperature. At this thickness the film assumes the body temperature in medical diagnostics and the film elasticity is unaffected. The film may be blackened to be light impervious and in a frame pressed against the body, constituting a window at one end of a light-impervious cylinder including one or more U.V. sources. The cylinder may include a hole for a TV camera and be pressurized to effect a slight outward bulge of the film. In fabrication, vulcanized latex in evaporable liquid may be applied to a glass plate forming a layer preferably < 0À02 mm. thick or dissolved rubber sprayed thereon. On drying, carbon powder, e.g. graphite powder, may be applied and further rubber may be applied to embed the powder. Phosphor is applied on the surface removed from the glass. The opacity of regions lying beyond the area of surface contact with the body, improve contrast of the thermal image.
Patent GB-1520335-A (GB)
Title: Densification of coal fly ash
IPC: C10J3/12
Filed: 1976-07-05
Abstract: 1520335 Fly ash pellets FMC CORP 5 July 1976 [7 July 1975] 27888/76 Heading C1A Densified flyash pellets are produced by (a) sizing flyash to a fraction finer than 200 mesh (US Standard) and having a bulk density 1À0 to 1À4 g./c.c., (b) moistening the sized fraction with sufficient water to form green pellets, (c) sizing the green pellets, (d) tumbling the sized green pellets to effect particle packing until excess water has been squeezed out, the pellets being kept dusted during tumbling with sized flyash from (a) to absorb the squeezed out water and prevent agglomeration, (e) sifting the packed green pellets and drying at a temperature such that sudden expulsion of water is avoided to remove chemically unbound water, (f) curing the dried pellets under non-sintering conditions at not less than 1000‹ F. and until the iron oxides are converted substantially to the α-Fe 2 O 3  form of hematite and C is burned off to a residual value of not more than 5%, and (g) sintering the treated dried pellets from (f).
Patent GB-1339688-A (GB)
Title: Injection-type frequency-locked oscillator
IPC: H03B9/14
Filed: 1972-06-14
Abstract: 1339688 Oscillators NIPPON ELECTRIC CO Ltd 14 June 1972 [15 June 1971] 27901/72 Heading H3T An injection type frequency-locked oscillator comprises an oscillator having an input terminal, for connection to an injection input and an output terminal for connection to a load, wherein the input impedance seen looking into the oscillator at the input terminal has a value such that, in operation, a portion of the injection input is reflected at the input terminal so that oscillations emanating from the oscillator and which appear at the input terminal are cancelled by the reflected portion of the injection input. Gunn diode 1, Fig. 2, is located in waveguide 2, bias being applied via lead 3; an output is obtained at end 8, adjusting screws 5, 6, 7 allowing for impedance-matching. The shortcircuited end 4 of the waveguide is provided with a window 13 by which frequency-locking signals are introduced from end 14. The impedance at terminal 4 is predetermined so that the phase of the reflected wave of the input signal is about 180 degrees different from the phase of the locked output signal at the centre frequency of the locked oscillation, whereby the output and input signals at terminal 14 tend to cancel. In a second embodiment the Gunn diode is placed in a branch waveguide, the remote end of which is short-circuited (Fig. 3, not shown). A further embodiment comprises a transistor 23, Fig. 4, with its base coupled via a coupling disc 28 to a coaxial cavity 22. The output is fed from the collector to output terminal 25 via capacitor 29 and impedance-matching network 24. An injection source 21 is coupled to the cavity 22 by a coupling loop 30.
Patent GB-190845-A (GB)
Title: Improvements in tapping or the like screw threading mechanism
IPC: B23G1/46
Filed: 1921-10-21
Abstract: 190,845. Herbert, Sir A., and Vernon, P. V. Oct. 21, 1921. Attachments for screwing and tapping.-In an attachment for tapping &c., of the type wherein an axially movable tapping - spindle carries a clutch which may engage the driving- spindle either directly during cutting or through gearing for effecting a rapid withdrawal, the gearing is enclosed in a n o n - rotating casing comprised of two parts only. The part C, prevented from rotating by a radial lever, has a closing plate C<5> which forms the sole support for one or more pinions F gearing with a central loose pinion E and constantly driven by an internally-toothed wheel B' attached to the driving-spindle A. The tapping- spindle D carries a clutch G secured by a screw G<3> and can engage a clutch H<2> for a direct drive or a clutch J on the pinion E for a reverse drive. An adjustable stop K limits the depth of feed by contacting with the work and arresting the casing, whereupon the continued motion of the tapping-spindle disengages the clutch. A bearing sleeve C' is flanged at C<4> to take the working thrust, and an oil passage M<2> provides lubricant to the thrust surfaces and thence to the gears through holes M<4>. The wheel E is secured by a U-shaped plate attached to the plate C and fitting a groove in its boss.
Patent GB-387969-A (GB)
Title: Improvements in and relating to ramps for motor and like vehicles
IPC: A61G3/06
Filed: 1932-10-07
Abstract: 387,969. Ramps for loading vehicles ; hinges. BARCLAY, W., 320, 5th Avenue, New York, U.S.A. Oct. 7, 1932, No. 28000. [Class 78 (iv).] A ramp suitable for wheeling a chair into a motor vehicle at either side comprises a main portion 10 with folding flanges 18 and with a hinged extension 12 at one end or at each end. When not in use the ramp slides beneath the vehicle floor in a recess fitted with base and side rollers. The ramp is held in the position shown by spring pins. The hinges are held against accidental folding by spring- pressed toothed discs 29, Figs. 5 and 6, which slide on the hinge-pins and are prevented from turning by a lug 31 engaging in a slot 32. The gangway is fitted with sunk handles.
Patent GB-332126-A (GB)
Title: Improvements in the connecting rods of engines with radially arranged cylinders
IPC: F16H21/34
Filed: 1929-09-16
Abstract: 332,126. Barbarou, M. J. B. Nov. 23, 1928, [Convention date]. Addition to 314,945. Connecting-rods.-The pivot pins 3 for the auxiliary connecting-rods 4 are formed with recesses 13, 14, instead of with apertures, for accommodating the bolts 5 securing the cap 2 of the master rod. The bolts 5 are inclined and the recesses 13, 14 may be of different depths. Alternatively, the bolts 5 may bo tangential to the pivot pins 3, on the side adjacent the crankpin. The cap 2 and body of the master rod are formed with interfitting parts 15.
Patent GB-1532178-A (GB)
Title: Process for manufacturing cement compositions of high corrosion resistance
IPC: C04B24/18
Filed: 1977-07-05
Abstract: 1532178 Corrosion resistant cement compositions AKSJESELSKAPET NORCEM 5 July 1977 [9 July 1976] 28129/77 Heading C1H A cement composition comprises cement having a low content of aluminate (C 3 A) and at least 10 weight per cent based on the cement of finely divided reactive silica obtained by sublimation and quenching of silica-containing raw-material. The composition may be made by mixing together with the cement, sand and water an additive comprising 0-10 wt. per cent of the cement, 80-90 wt. per cent of the reactive silica, 3-8 wt. per cent of formaldehyde condensed sodium naphthalene sulphonate and 3-8 wt. per cent lignosulphonate.
Patent GB-148714-A (GB)
Title: Improvements in or relating to carburettors
IPC: F02M7/22
Filed: 1919-11-13
Abstract: 148,714. Strain, G. H. Nov. 13, 1919. Spray carburettors.-The carburettor has two air inlets, one 26 in the base of the casing and communicating with a petrol supply in a sleeve 5, the other 21 in the wall of the casing being controlled by ports 20 in a choke-tube 2, which may be caused to move axially by rotating a stud 24 passing through a helical slot in the casing 1. The nozzle 8 is screwed into a jet sleeve 4 which extends upwardly beyond the outlet orifice, as shown at 5. Holes 9, 11, chamber 12, and passage 13 place the nozzle in communication with the float chamber 14. The jet sleeve and nozzle, both of which are adjustable, may be locked by nuts 31, 6. The nozzle outlet is controlled by a needle valve 15 with an angular groove, which becomes deeper towards the lower end of the needle. The needle is continued as a tube 17 which communicates with the sleeve 5 through orifices 18 and is carried by a partition 19 which separates the two air supplies and is forced against the choke tube 2, so as to move with it, by a spring 28. The air inlets 21 are covered by gauze in a casing 23. At starting, the choke tube is raised slightly, air enters at 26, mixes with petrol in sleeve 5, and the mixture is delivered through tube 17, the ports 21 being closed. For normal running, the choke tube is raised still further so as to open the ports 21. The petrol feed is stated to be by gravity alone, so that increased engine speed produces a weakening of the mixture and a tendency to bring the speed back to normal.
Patent GB-940556-A (GB)
Title: Apparatus for transferring articles
Inventor: CAMPBELL HUGH
IPC: B65G47/90
Filed: 1959-08-18
Abstract: 940,556. Transferring articles from one conveyer to another. HUGH CAMPBELL (LONDON) Ltd. Aug. 18, 1960 [Aug. 18, 1959], No. 28172/59. Heading B8A. Crates are transferred from the upper end of an upwardly moving elevator 9 to a horizontal conveyer 7, or from conveyer 7 to the elevator 9 if the latter is moving downwardly, by a 'platform 1 carried by horizontally spaced pairs of arms 2 rotating on shafts 3, the arrangement being such that the platform moves in an orbital path whilst remaining horizontal, lifts the crates off the elevator 9 and deposits them on the conveyer 7 or vice versa. The elevator 9 has laterally spaced angle bars (not shown) which support the crates, these bars being carried by opposed pairs of chains. A driving transmission shaft 10 interconnects a driving shaft of these chains with one of the shafts 3 so that the platform 1 moves in synchronism with the angle bars of the elevator. Conveyer 7 comprises a laterally spaced pair of chain link conveying members arranged on opposite sides of the platform 1. Counterweights 11 are carried on arms secured to shafts 3 outwardly of the horizontal conveying members. Specification 924,386 is referred to.
Patent GB-842956-A (GB)
Title: Improvements in and relating to polyphase transformer-systems consisting of a plurality of monophase regulating transformers
IPC: H01F29/02
Filed: 1958-09-03
Abstract: 842,956. Transformers. SMIT & CO.'S TRANSFORMATORENFABRIEK N.V., W. Sept. 3, 1958 [Sept. 11, 1957], No. 28344/58. Class 38 (2). A polyphase transformer system consists of a number of single-phase transformers having cores 1 each with three or more limbs, the primary and/or secondary windings 3, 3<SP>1</SP>, 5, 51 on the inner limbs being connected in series with tapped windings 9, 11, on the outer limbs to star points 18, 19 and compensating windings 10, 12 on the outer limbs being in parallel with auxiliary windings 4, 6 on the inner limb or limbs. The parallel connected windings 4, 10 may be connected in parallel or series with the parallel-connected windings 6, 12 and these sets of windings on the three transformers are connected together in delta as shown. to compensate for harmonic components of the system. In another arrangement (Fig. 3) a pair of parallelconnected third windings 15, 151 are also provided one on each limb and may form the primary windings, windings 3 and 5 being then connected in series to form the secondary.
Patent GB-673709-A (GB)
Title: Linear derivatives of nitroguanidine
Inventor: MCKAY ARTHUR FERGUSON
Filed: 1949-11-07
Abstract: N - b  - nitroxyethyl - N - nitro - N1 - nitroguanidine is prepared by nitrating a compound of formula <FORM:0673709/IV (b)/1> where X is OH or NO3 with a nitration agent consisting of over 4 and preferably at least 5 mols. of nitric acid per mol. of said compound and at least 1 mol. of acetic anhydride per mol. of said compound, the temperature during the nitration reaction being p  maintained within the range of 30 DEG  to 60 DEG  C.  The nitration may be carried out in two stages passing through an intermediate compound b -nitroxyethyl-nitroguanidine or it may be carried out in a single stage.  To produce the intermediary 2-4 mols. of nitric acid per mol. of starting material should be present.  In examples (1) b -hydroxyethylnitroguanidine, and (2) b -nitroxyethylnitroguanidine are treated with nitric acid dissolved in acetic anhydride, the product is precipitated by pouring on ice and recrystallized from aqueous methanol.
Patent GB-499906-A (GB)
Title: Improvements in electric cables
IPC: H01B9/06
Filed: 1937-10-19
Abstract: 499,906. Cables. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., BRAZIER, L. G., and HAMILTON, G. M. Oct. 19, 1937, No. 28463. [Class 36] An electric cable having a dielectric impregnated with liquid or semiliquid material is furnished internally with means for compensating for expansion and contraction of the impregnating material, the compensating means consisting of one or more bodies of cellular Neoprene which contain a large number of small closed gas-cells separated from each other by thin walls. The gas-cells may be given any desired pressure and the pressure may be higher in some parts than others. One or more compensating bodies may be employed and may be placed within a hollow conductor or between the dielectric and the sheath of a single or multioore cable. In the Figure the conducting wires 1 enclosed in the dielectric 3 and sheath 4 are stranded about the supporting helix 2 containing the cellular Neoprene.
Patent GB-907530-A (GB)
Title: Subsurface well working equipment comprising the combination of a tubing string and a tool
IPC: E21B23/02
Filed: 1959-08-20
Abstract: 907,530. Magnetic switches. CAMCO Inc. Aug. 20, 1959 [Dec. 8, 1958; March 30, 1959], No. 28470/59. Class 38 (5). [Also in Group XXI] Series connected magnetic switches for operation at preselected positions of a movable member within a tube, such as a tool within a well, include spaced annular permanent magnets each having non-magnetic spacers on each side. As shown, annular permanent magnets 2, 3 are located between respective pairs of non-magnetic annular spacers 2a, 3a and are radially magnetized so that the flux is carried by the magnetic tube 1, and magnetic distance pieces 4, 5 and passes in the tube around the spacers. The movable tool carrier 13 has soft iron discs 33, 34 spaced to align with the spacers 2a, 3a and complete the magnetic circuits of both magnets 2, 3. An extension 35 of the disc 34 passes above a pivotally mounted D'Arsonval movement coil 19, 20 so that when both discs 33, 34 are magnetized contacts carried by the coil are operated, but if only one disc is magnetized the coil is urged to its inoperative position.
Patent GB-445292-A (GB)
Title: Improvements in and relating to hair curling or waving irons
IPC: A45D1/02
Filed: 1934-10-04
Abstract: 445,292. Hair curling appliances. MEHLES, L., and MEHLES, J. W., 56, Derinton Road, Upper Tooting, London. Oct. 4, 1934, No. 28479. [Class 131] The rod member of a pair of curling-tongs is made in the form of a tube 3 provided with perforations 7 and is adapted to receive within it a separate solid heating rod 8. The rod 8 is preferably provided with stop-means to prevent its complete withdrawal, e.g. a lug or lugs 9 engaging a slot or slots 10 in the tube 3, or an enlargement at the inner end of the rod coacting with a restricted outlet at the outer end of the tube. A detent or stopper may be provided for holding the rod in its fully enclosed position during waving or curling. The channelled member 1 of the tongs may be provided with perforations 2 as described in Specification 408,449. In the case of tongs having two'or more sets of rods and channel members, these may each be constructed as described above.
Patent GB-1042160-A (GB)
Title: Improvements relating to bundling pockets
Inventor: MOSS FRANK
IPC: B65B27/10
Filed: 1963-07-18
Abstract: 1,042,160. Bundling-apparatus. ENGLISH STEEL CORPORATION Ltd. May 21, 1964 [July 18, 1963], No. 28536/63. Heading B8C. A bundle of rolled bars 2 to be tied, is first compacted in a flexible cradle 9 by repeated relative movement of the cradle supports 4 7. The cradle com prises five chains or ropes 9 carried by supports, provided at spaced intervals along straight girders 1, 1a. The supports 4 are all fixed whilst the supports 7 are moved together under manual or automatic control about a common shaft 6, turned by hydraulic or pneumatic rams 10 or a mechanical drive. When the cradles are in the closed position shown the bundles are tied with wires or straps. The supports may be mounted on a weighbridge 14, and may be connected to a bar mill so that they are always in the open position (Fig. 3, not shown) when receiving bars from the mill.
Patent GB-265516-A (GB)
Title: Improvements in creeping garments for babies
IPC: A41B13/00
Filed: 1926-11-13
Abstract: 265,516. Jagoe, A. F. Nov. 13, 1926. Baby pants.-Creeping garments for babies comprise a body part 1 fitted with a bib 3 and shoulder loops 2, and having its lower part completely open. Fasteners 8 are provided to form openings for the legs, between which openings is a flap 9 having a fastening 10. The child's knees are protected by extensions 5 having loops 6 passing round the leg. The garment and flap may be made of waterproof material,
Patent GB-523395-A (GB)
Title: Improvements in or relating to electric supply systems including electric generators
IPC: H02P7/34
Filed: 1938-10-03
Abstract: 523,395. Control of D.C. motors. GENERAL ELECTRIC CO., Ltd., and HUGGARD J. P. Oct. 3, 1938, No. 28672. [Class 38 (iii)] Varying etectromotive force.-The generator 5 supplying the motor 6 has its field 10 supplied in part by an exciter 17. Quick movement of the regulator 12 only effects a slight initial change in the field flux of the generator, but as the motor speed and the back E.M.F. thereof changes, the additional flux due to the exciter 17 builds up slowly. Surges of current are thereby avoided. The generator may have a small decompounding winding 8. Alternative arrangements include the use of an exciter having its field winding which is in shunt to the generator, controlled by the regulator 12.
Patent GB-338275-A (GB)
Title: Improvements relating to screen wipers
IPC: B60S1/14
Filed: 1929-09-23
Abstract: 338,275. Pollock, E., and Lambert, F. W. Sept. 23, 1929. Windows and the like, cleaning.-A windscreenwiper operated by hand or foot and returned by spring action comprises a bracket 1 carrying a spindle 5 on which is mounted a lever 4 provided with a toothed segment 6 geared to a disc having teeth 8 and connected to the wiper arm 13. The lever 4 is operated from a cord 19 attached to a foot lever 20. The cord may also be pulled by hand.
Patent GB-923538-A (GB)
Title: Magnetic core memory device
IPC: G11C19/06
Filed: 1961-08-09
Abstract: 923,538. Circuits employing magnetic storage elements. AMP Inc. Aug. 9, 1961 [Aug. 19, 1960], No. 28756/61. Class 40 (9). [Also in Group XIX] In a shifting register of the kind in which advance windings 26, 28 and transfer windings 16, 20, 22 are associated with magnetic storage cores 11, 18, 21 having main apertures 12, 12<SP>1</SP>, 12<SP>11</SP> and minor apertures 13, 17, 22, all the apertures are threaded by a common priming winding 24. Specification 899,366 is referred to.
Patent GB-894169-A (GB)
Title: Improvements in or relating to the production of alkyl phosphites
IPC: C07F9/142
Filed: 1960-08-19
Abstract: Trimethyl or triethyl phosphite is prepared by continuously introducing methanol or ethanol into a reaction zone containing a triaryl phosphite, said reaction zone being maintained at a temperature above the boiling point of the methanol or ethanol and the trialkyl phosphite but below that of the aryl phosphite and of the phenol produced, all boiling points being measured under the pressure conditions in the reaction zone, and continuously removing from the reaction zone a vapour stream containing the trialkyl phosphite from which the trialkyl phosphite may be recovered, e.g. by distillation in the presence of alkali metal alcoholate or phenolate. An alkaline catalyst may be present, e.g. calcium oxide, lead oxide or an alkali metal alcoholate or phenolate.  The process is preferably operated under sub-atmospheric pressure.  The reaction may be operated continuously, e.g. by feeding the aryl phosphite and the alkanol countercurrent into a plate column or other reaction zone.
Patent GB-1479722-A (GB)
Title: Life saving projectile
IPC: B63C9/26
Filed: 1973-06-19
Abstract: 1479722 Line throwing apparatus J H T RINFRET and E M RINFRET 16 Sept 1974 [19 June 1973] 28950/73 Heading F3X A life-saving projectile comprises a cylinder 10, Fig. 1, and a handle 11 which is secured to the cylinder at 12. The cylinder 10 contains a reel 14 of line and a washer 16 which is connected to end 15 of the line. The handle 11 has a tubular handgrip 18 therein which is attached to end 17 of the line, and is provided with a dust-cap 19. In use the latter is removed and the handgrip 18 is pulled out from the handle 11 and held by hand, for example, and the handle is used to facilitate the throwing of the projectile to a  person in distress. Throwing may be effected when a longer line is required by using a rod 20, Fig. 3, the end of which having a slit 22 being  pushed into the handle 11 and the end having a knob 21 being gripped by hand. The projectile can also be launched from a spring-loaded handle as shown in Fig. 2, can be provided with  fins. or flights and can have its weight modified by substituting washers 15 of various weights.