baber/WOPTO huggingface dataset:
Patent GB-329610-A (GB)
Title: Improvements in or relating to frequency transformation of electric oscillations
IPC: H03B19/16
Filed: 1929-10-30
Abstract: 329,610. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Nov. 2, 1928, [Convention date]. Arc and spark gap apparatus, vacuum or low-pressure apparatus, arrangements of; frequency, changing.-In means for generating, under the control of primary oscillations from a generator 1, relaxation oscillations of lower frequency by impressing the primary oscillations upon a circuit comprising a battery 4, resistances 5, condenser 3, and discharge device 2, means are provided for varying the amplitude of the primary oscillations to adjust the frequency of the relaxation oscillations. The means may comprise a variable resistance 6 in the field circuit of the generator 1.
Patent GB-676546-A (GB)
Title: Anodic electro polishing and surface metal removal of metal parts
Inventor: THOMPSON JOHN RAYMOND
IPC: C25F7/00
Filed: 1949-12-23
Abstract: 676,546. Anodic surface-metal removal. ROLLS ROYCE, Ltd. Dec. 22, 1950 [Dec. 23, 1949], No. 33009/49. Class 41. In anodic electro-polishing or other electrolytic removal of metal, the parts to be treated are arranged in the electrolyte so that the portions from which an excessive removal of metal would otherwise take place on one part are placed in close relationship to similar portions on another or other parts. In the arrangement shown, a lead-lined tank 1 contains an electrolyte 2 and two vice members 6, 9, the member 6 carrying turbine blades 7 projecting downwardly and the member 9 carrying upwardly-projecting blades 10. The blades 7, 10 are arranged in pairs with the tip of one blade 7 close to the tip of a blade 10, whereby the metal which would otherwise be removed from the blade tips is reduced. The vice members 6, 9 are connected by hooks 5 to a bar 3 carrying positive current and two stainless steel plates 12 serving as cathodes are connected by hooks 11 to bars 4 carrying negative current. A suitable electrolyte for use in electro-polishing of turbine blades of nickel chromium alloy contains 52 per cent phosphoric acid, 22 per cent sulphuric acid and 26 per cent water. The current density is from 4 to 10 amperes per square inch.
Patent GB-1392246-A (GB)
Title: Assembly of a vehicle windscreen and fastening means therefor
IPC: B60J1/02
Filed: 1972-07-14
Abstract: 1392246 Windscreens SAINT-GOBAIN INDUSTRIES 14 July 1972 [28 July 1971] 33033/72 Heading B7J [Also in Division E1] A windscreen assembly comprises fastening means, such as metal hook fasteners 7, Fig. 1, by which the windscreen 1, 2, 3 is securable to a vehicle body 5, and which are deformable so that the windscreen is ejected from its seating when a shock stress above a predetermined value occurs and is then held at a distance from its seating by the deformed fastening means. One form of the invention is shown before and after windscreen ejection in Figs. 2 and 3, in which the fastening means comprises metal members 11 each having a number of folds which absorb energy as they are deformed. The deformable fastening members 7 and 11 are masked by covering seals 10, 16 of rubber to avoid risk of injury thereon to vehicle occupants. In response to the shock of a body of an occupant hitting the windscreen at 50 km./h., the windscreen and fastening means will absorb a kinetic energy of about 70 kgm. as the windscreen is dispaced a distance of about 25 cm. The windscreen may be a laminated pane, of glass layers 1 and 3 separated by a layer of polyvinyl butyral 2, which will commence deforming about 10 to 15 milliseconds after the shock and absorb additional energy as the pane itself deforms a further distance of 5-10 cm. The material constituting the fastening means has deforming properties which are substantially independent of temperature between - 30‹ and + 80‹ C., and may be metal as in Figs. 1-3, possibly having perforations (21) formed therein, Fig. 4 (not shown), or may be textile fabric 57 folded concertinafashion, Fig. 7. The folds of fabric 57 are joined by stitches 59 which rupture progressively to absorb energy on ejection of the windscreen. In this instance, the windscreen comprises a deformable safety pane of glass 51, an adhesive layer 52 and an internal plastics sheet 53.
Patent GB-790203-A (GB)
Title: Improvements in and relating to naphthalene derivatives and the manufacture thereof
Inventor: DUFFIN WALTER MARK
Filed: 1955-06-22
Abstract: The invention comprises naphthalene derivatives of the general formula: <FORM:0790203/IV (b)/1> in which X and Y each represent the grouping -CH2,NR5,CH2,O-, R5 being a straight or branched chain alkyl group having from one to eight carbon atoms or a cycloalkyl group having from five to seven carbon atoms in the ring; together with a process for their preparation by reacting the appropriate naphthalene 1,5-, 1,6- or 2,6-diol with formaldehyde and an amine RNH2, preferably in a solvent, e.g. methanol.  In examples: (1) naphthalene-1,6-dol is added to cyclohexylamine and formalin in methanol at -5 DEG  C. and the mixture left overnight, when 2,9 - dicyclohexyl - 1,2,3,4,7,8,9,10-octahydro - 2,9 - diaza - 4,7 - dioxachrysene separates and is recrystallized from ethanol or dioxan; similarly using the appropriate amine are obtained 2,9-diethyl-, di-n-propyl-, di-n-butyl-, di-n-octyl-, di-cyclopentyl-, and dicycloheptyl - 1,2,3,4,7,8,9,10 - octahydro - 2,9-diaza - 4,7 - dioxachrysene; (2) as in (1), using naphthalene-1,5-diol and the appropriate amine are obtained 2,8-dicyclohexyl-, and di-n-propyl - 1,2,3,4,7,8,9,10 - octahydro - 2,8 - diaza-4,10-dioxachrysene; (3) cyclohexylamine in methanol is treated with formalin and naphthalene-2,6-diol in methanol, the mixture refluxed and poured into water when 3,9-dicyclohexyl-1,2,3,4,7,8,9,10 - octahydro - 3,9 - diaza - 1,7-dioxachrysene crystallizes; similarly are obtained 3,9-dimethyl-, diethyl, di-n-propyl, diisopropyl, di - n - butyl and di - n - pentyl-1,2,3,4,7,8,9,10 - octahydro - 3,9 - diaza - 1,7-dioxachrysene.
Patent GB-836727-A (GB)
Title: Improved section iron for arched frames in mine galleries, tunnels or the like
IPC: E21D11/20
Filed: 1956-10-31
Abstract: 836,727. Channel-shaped section iron for mine arches &c. BERGBAUSTAHL G.m.b.H. Oct. 31, 1956 [Nov. 8, 1955], No. 33265/56. Class 20(2) A channel-shaped section iron for use in the construction of arched frames in the supporting structure of mine galleries, tunnels and the like, the section iron having the same or proportionate parabolic crosssectional contours on its inner and outer faces, said internal and external contours being each divided into zones the curvature of each of which substantially conforms to that of the corresponding portion of one of a number of different parabolas having the sames axes and the vertices of which coincide, the greater the distance of a zone from the bottom of a section, the smaller being the parameter of the parabola of which it forms a part. In the exemplified embodiment, the inner and outer surfaces 5, 6 of the bottom zone 1 are formed in accordance with the corresponding portion of a parabola having a parameter of 12.5 whilst the inner and outer surfaces 7, 8 of the side zone Z are formed in accordance with the corresponding portion of a second parabola having a parameter of 5 to 6, the axis and vertex of which coincide with those of the first parabola. In an outer zone 3 the inner and outer surfaces 9, 10 extend parallel to one another until they curve round into a flange 12. The zones 1 and 2, and 2 and 3 merge smoothly into one another.
Patent GB-915267-A (GB)
Title: Improvements in axle boxes
Inventor: BLAIR GEORGE
IPC: B61F17/20
Filed: 1957-10-24
Abstract: 915,267. Axle boxes. BLAIR & CO. Ltd., GEORGE. Jan. 26, 1959 [Oct. 24, 1957], No.33271/57. Class 12 (1). In an axle box comprising an upper part 1 and a lower part 2 which may be connected by bolts, rivets or by welding, the axle 9 is mounted between upper and lower bearing members 21, 16 and has a thrower 7 attached thereto which collects lubricant from a sump 10 and throws it into a recess 27 in the upper member 21. The lubricant is then collected by horizontal channels and is conveyed by grooves to the journal portion of the axle. The lower member 16 extends to a wing 18 having an inclined face 19 for receiving the lubricant from channels 24 via a recess 22<SP>1</SP> and a groove 23 and from channels 28 which collect lubricant thrown below the level of the channels 24. The flow into the channels 28 is facilitated by inclined baffle elements 34. The box has a cavity 5 enclosed by a cover 6 and has an annular space 11 containing a lubricantdeflector ring 12 secured to the axle 9; an annular sealing ring 13 is enclosed adjacent the ring 12 by an annular flange 14 secured to the box by bolts (not shown). In a modification (not shown), the joining faces of the two box parts 1, 2, form the base of the channels 28 and the lips 32 are integral with the lower box part 2.
Patent GB-506669-A (GB)
Title: Improvements relating to loom shuttles
IPC: D03J5/08
Filed: 1937-12-02
Abstract: 506,669. Shuttles. PILKINGTONS, Ltd., and PILKINGTON, R. Dec. 2, 1937, No. 33292. [Class 142 (iii)] When the peg is turned into weaving position, its head E rests as shown in Fig. 3, upon the.base B of a spring pressing and it is gripped by the sides A thereof, inwardly extending parts C interlocking with the top corners D or with recesses in the peg head. The pressing fits in an undercut cavity with sides slightly outwardly flared near the top, and it is held in position by screws H and nuts, or pins J, or both. It may have ears K to engage shoulders or grooves in a weft carrier.
Patent GB-1261070-A (GB)
Title: Improvements in or relating to amplifier circuits
IPC: H03F3/185
Filed: 1969-07-02
Abstract: 1,261,070. F.E.T. amplifiers; microphone circuits. AKUSTISCHE U KINO-GERATE G.m.b.H. 2 July, 1969 [5 July, 1968], No. 33422/69. Headings H3T and H4J. An amplifier circuit for a sound transducer M comprises a field, effect transistor having controlled electrodes 1, 2 serving as the source or drain each connected to a load resistor R4, R5 of the same value, the output being taken from across the controlled electrodes and means are provided for applying to the gate electrode 3 a bias voltage which depends on the polarity of'the supply voltage UB and which serves to keep the voltage difference between the gate and the controlled electrode which serves as the source the same for either polarity of the supply voltage so that the operation of the circuit is independant of the polarity of the supply voltage. In the amplifier for a capacitor microphone M shown when UB is positive the diode D conducts to lower the gate potential 3 whereas when UB is negative thediode D is non- conducting so as to raise the gate potential 3 and make the potential between 3 and 2 the same as that between 3 and 1 when UB is positive. In a modified gate bias arrangement (Fig. 2, not shown), the diode D is replaced by an auxiliary voltage source such as a battery (Uh). The FET may be of barrier layer or insulated gate type.
Patent GB-155243-A (GB)
Title: Extensible brackets and like supports
IPC: A47F5/00
Filed: 1920-11-26
Abstract: 155,243. Platschick, B. Dec. 3, 1919, [Convention date]. Dental and like engines.-A support for electric motors, dentists' appliances, &c. comprises a pair of parallelogram arrangements adapted to be operated simultaneously to move the article supported horizontally. The parallelogram arms 9, 10 are mounted to pivot on a wall fitting 1 and the parallelogram arms 11, 12 carry a fitting 13 which is adapted to support an electric motor or other article. The ends of the arms 10, 12 are slotted to engage a bolt 15 sliding in slotted plates 4 to which all the parallelogram arms are fitted; or toothed sectors or other gearing may be arranged to interconnect and to operate the parallelogram arms simultaneously. The arms tend by their weight to close upon themselves and this tendency is balanced by the friction at the pivots and, when the arms 11, 12 are longer than the arms 9, 10 as shown, by the weight of the article supported.
Patent GB-1475733-A (GB)
Title: Prefabricated building structure
IPC: E04B2/72
Filed: 1974-07-29
Abstract: 1475733 Prefabricated building structure G ICKES 29 July 1974 [28 July 1973] 33450/74 Heading E1A A prefabricated building structure comprises panels 11, 12 each with cantilevered projections from each upper edge. Each projection has recesses bounded by a face 2, 3 in the same plane as the pane edge and which allow the panels to interlock with cantilevered projections at each corner. Panels forming an upper storey may be supported on a floor plate and the projections provide support for extra floor space for corridors or balconies. The panels may be of concrete and hard foam material with the foam forming the outer panel surface. The panels may be reinforced and formed with window or door openings 9 or channels for services, not shown.
Patent GB-966539-A (GB)
Title: Improvements in voltage-multiplier rectifier circuits
Inventor: JONES ROYSTON EVERARD
IPC: H02M7/10
Filed: 1962-08-31
Abstract: 966,539. Voltage multiplying and rectifying. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 30, 1963 [Aug. 31, 1962], No. 33579/62. Heading H2F. A voltage multiplier rectifier circuit comprises a pair of A.C. input terminals 1, 3, a pair of D.C. output terminals 5P, 5N, across a reservoir capacitor C5, two A.C. charging paths for that capacitor each joining the two D.C. terminals, each charging path comprising a series of n capacitors (as shown n=2) interposed between two rectifiers (as shown one chain comprises C1 C2 between D7 and D1, the other chain comprises D8, C3, C4, D2), the A.C. input terminals being connected at the junctions between the lower rectifiers and their adjacent capacitors, and each pair of capacitors in a path (C3, C4, for example) being shunted by a pair of series rectifiers (D5, D6) whose junction is connected to the junction of the two similar capacitors (C1, C2) in the other path, whereby the reservoir capacitor is charged to (n + 1) times the peak input voltage V. In operation C1 and C3 are charged to V on alternate half-cycles. With 1 positive to 3, 2V (input voltage V plus V across C1) is applied to C4+C3. Similarly C2+C1 is charged to 2V. Thus when 1 is positive to 3, C2+C1+input voltage provides 3V across the capacitor C5, and similarly 3V is provided on the other half-cycle. Diodes D3, D4, D5, D6 may be metal rectifiers and may be provided with series variable resistors to balance out inequalities. The diodes D1, D2 may be vacuum tubes and the terminal 5N may be earthed.
Patent GB-383756-A (GB)
Title: Improvements in washing machines for vegetables, roots and the like
IPC: A23N12/02
Filed: 1931-12-04
Abstract: 383,756. Washing vegetables. HOPPE, H., 14, L³neburgerstrasse, Magdeburg, Germany. Dec. 4, 1931, No. 33604. Convention date, Dec. 4, 1930. [Class 28 (ii).] A machine for washing vegetables, roots and the like comprises a trough b in which a worm a, having fluted interruptions a<1>, is disposed, and a delivery device e which receives the material from the worm a, associated with means whereby the washing water flows back through the hollow worm shaft g to the mud-settling chamber i at the front end of the machine. The fluted portions of the worm lift the material, as they pass along the trough, over the worm from one side of the trough to the other, whilst overhanging material, e.g. turnip leaves, which cling to the peripheral parts of the worm are cut off by a longitudinally arranged scraper. A sharp scraper p similarly cuts off overhanging material from the rear end of the worm. The washed material is received by the previous conveyer e and is sprayed by jets l. The washing water passes through slots f in the worm shaft g and emerges through similar slots f into the chamber i. The slots f at the rear end of the shaft g are cleaned by the conveyer e rubbing against them, or separate scrapers may be provided. The conveyer e is cleaned by a brush m. Valves i<1>, q are provided at the bottoms of the chambers i, b for removal of sediment.
Patent GB-1504477-A (GB)
Title: Fungicidal compositions comprising a 1,3,4-oxadiazolin-2-one derivative
IPC: A01N43/824
Filed: 1976-08-12
Abstract: 1504477 Fungicidal application of an oxadiazolinone derivative PHILAGRO 12 Aug 1976 [13 Aug 1975] 33664/76 Heading A5E 3-(2, 4-dichloro-5-hydroxyphenyl)-5-t-butyl-1, 3, 4-oxadiazolin-2-one of formula: finds application as a fungicide in agriculture and horticulture, e.g. in combating Rhizoctonia solani in ground nuts. Specification 1416289 is referred to.
Patent GB-385723-A (GB)
Title: Improvements in or relating to electricity meters
IPC: G01R11/185
Filed: 1931-12-05
Abstract: 385,723. Eddy current brakes. ALLGEMEINE ELEKTRICIT€TS - GES., 2, Friedrich Karl-Ufer, Berlin. Dec. 5, 1931, No. 33811. Convention date, Dec. 6, 1930. [Class 103 (i).] An induction meter is compensated for temperature errors by providing an arm containing or comprising a material having a negative or other temperature coefficient with respect to magnetic permeability, the arm being secured to the brake magnet and having its free end carried round one pole thereof. As shown, the arm c is provided with an inset alloy portion d, the arm constituting a magnetic path in parallel with one pole of the brake magnet a. The arm is secured by a screw b which may serve also to attach the brake magnet, as well as to secure a fine adjustment device for regulating the braking torque.
Patent GB-319162-A (GB)
Title: Improvements relating to hand-signalling devices
IPC: H01H35/02
Filed: 1928-11-19
Abstract: 319,162. King, A. A. Nov. 19, 1928. Traffic signals.-A signalling device adapted to be strapped to the wrist or arm of a road-traffic controller, vehicle-driver or other person comprises a metal strip 10 carrying an electric lamp 14 and a gravity-controlled switch 12 which automatically lights the lamp 14 when the arm is raised vertically. The switch consists of ball 27 adapted to roll in an inclined corrugated conducting tube 24 so as to connect the latter with a disc 22 and complete the electric circuit for the lamp. To prevent the circuit being completed except when the arm is vertical, a portion of the interior of the tube 24 is insulated, leaving only a longitudinal strip adjacent the lower arm 26 uninsulated. In a modification, Fig. 5, red and green lamps 11', 11<11> are controlled by two gravity-controlled switches 12, 30.
Patent GB-995423-A (GB)
Title: Suction pumps
IPC: B63B13/00
Filed: 1961-09-22
Abstract: 995,423. Centrifugal and rotary ejector pumps; ejectors; hydraulic turbines. R. C. HAMSON. Sept. 21, 1962 [Sept. 21, 1961], No. 34095/61. Headings F1C, F1E and F1T. A suction pump for operation by water streaming relative thereto comprises at least one conduit mounted for rotation about an axis transverse thereto, means responsive to the streaming water to rotate the conduit about the axis and a suction branch communicating with the conduit, the arrangement being such that an open end of the conduit is swept through the water by the rotation and is so shaped and positioned that the centrifugal pumping effect has added thereto a substantial pumping effect produced by the sweeping. The bilge pump shown is towed behind a vessel by means of a flexible hose 2. The pump rotor comprises a T-piece 4 carrying two tubes 7 flattened in cross-section and each carrying a rotor blade 5 or 6. The motion through the water causes the blades to rotate the rotor about a swivel coupling 3, whereby bilge water is drawn through the hose 2 and a rigid pipe 1 and expelled by centrifugal action through the tubes 7, the major axis of the crosssection of which corresponds substantially with the direction of the relative motion. The centrifugal action is supplemented by an ejector action produced by the relative motion of the ambient water across the discharge ends 8 of the tubes 7. To ensure the ejector action, the ends 8 project beyond the blade tips as shown. A strainer, a non-return valve and a rotor guard may be provided. Fixed stabilizer vanes may be provided on the pipe 1. The swivel coupling 3 may be at either end of the pipe 1 or in an intermediate position. Alternatively, it is omitted, pumping then taking place through a flexible hose which rotates with the pump. The pump may be used for draining vessels moored in a current or for draining the cellars of buildings adjacent to rivers or streams. Instead of being driven by blades integral with the pump rotor, the pump may be driven by a paddle wheel through gearing.
Patent GB-341172-A (GB)
Title: Improvements in or relating to electric locomotives
IPC: B61C9/50
Filed: 1929-11-08
Abstract: 341,172. Electric locomotives. LOCOMOTIVE BOOSTER CO., 17, East 42nd Street, New York, U.S.A.-(Assignees of Ingersoll, H. L. ; Stamford, Connecticut, U.S.A.) Nov. 8, 1929, No. 34190. Convention date, April 12. [Class 79 (iii ).] Electric locomotives are fitted with end bogie trucks on which are mounted booster motors 16 adapted to be geared to the truck wheels 18 when the load on the main motors exceeds a certain maximum. The train of gears 19, 20, 21 is as described in Specification 280,744, [Class 79 (ii), Motor vehicles, Driving &c.], and drives forward or backward according as the pinion 21 or pinion 20 is meshed with the wheel 22 on the driving wheel 18. The operation of a rocking arm 28 to effect this change is done by a fluid-pressure device 29 controlled by valve apparatus 46, Fig. 5. If the part 46 is moved to the left by a solenoid 50 a valve part 47 is seated and cuts off the pipe 37 from the pipe 38. The cylinder 29 exhausts through the pipe 38 past the part 48 of the apparatus 46 and out through the port 49. The valve 47 is normally held closed either by the fluid or by a spring. If the part 46 moves to the right the valve 48 is closed and 47 opened to pass the fluid from pipe 37 to pipe 38 and thence to the upper side of the piston 30 which descends and meshes the gear 21 with the wheel 22. The pipe 39 leading to the underside of the piston is similarly controlled. The solenoids are connected to the controller by wires 52, 53 having solenoid switches 54, 55 operated by a relay circuit 56 which taps into the main line 57 to the booster motors 16, 17. The driver can energize either motor by means of hand switches 58, 59. The gears 20, 21 are slowed down previous to meshing by means of resistances 66 in the line 57. When the gear is in train the pipe 40 is uncovered leading to a piston 41 which then closes the circuit between contacts 44, 45 to short-circuit the resistance 66. The boosters are made dependent on the load on the main motors by a solenoid switch 68 in the line 69 carrying the main current.