baber/WOPTO huggingface dataset:
Patent GB-734266-A (GB)
Title: Gas heating equipment
Inventor: SPASH DAVID ISAAC
IPC: F23D14/48
Filed: 1951-08-24
Abstract: 734,266. Injectors. STANDARD TELEPHONES & CABLES, Ltd. Aug. 15, 1952 [Aug. 24, 1951], No. 19992/51. Class 71. [Also in Group XI] Gas heating equipment includes a variable injector for mixing gas and air comprising two aligned venturi-tube halves 4, 5 having adjacent but spaced nozzles 7, 8 surrounded by a gasinlet chamber 6, an air-inlet 2 connected to the venturi-tube half 4, a gas-burner array (not shown) connected to the venturi-tube half 5, and means for varying the effective cross-section of the nozzles. The effective cross-sections of the nozzles 7, 8 are varied simultaneously by the adjustment of tapered sections 11, 12 of a valve needle 10 fixed at one end to a threaded spindle 28 rotatable by a handwheel 27 and supported at the other end by a bearing 13. In an alternative embodiment the needle has no tapered parts but has a reduced portion at one end and an extension at the opposite end slidable in a tubular member fixed to the body of the injector, whereby the position of the needle in the venturi nozzles may be adjusted by a direct sliding action. For low-flame temperatures the gas supply may be connected to the air inlet 2 and the gas inlet 6 left open to the atmosphere. Specifications 716,111 and 726,773, [Group XI], are referred to.
Patent GB-381932-A (GB)
Title: Improvements relating to the electro-deposition of palladium
IPC: C25D3/50
Filed: 1931-07-11
Abstract: 381,932. Electrodeposition of palladium. MOND NICKEL CO., Ltd., Thames House, Millbank, and RAPER, A. R., of Mond Nickel Co., Bashley Road, both in London. July 11, 1931, No. 20008. [Class 41.] A palladium anode is employed in an electrolyte capable of dissolving the anode at substantially the rate of deposition. The electrolyte may consist of a solution of a palladonitrite of one or more alkali or alkaline earth metals together with a chloride or bromide of an alkali or alkaline earth metal or a mixture of these halides. The concentration of palladium is preferably 10 gms. per litre and that of the halide 10-30 gms. per litre. Detailed instructions are given for preparing baths from sodium and potassium palladonitrites and also direct from palladium. The anodes may consist of pure hard rolled palladium sheet or mav be cast. Thev may be enclosed in unbleached calico bags. The baths are preferably operated at 40-50 C. Silver, gold, copper, brass, bronze, palladium and nickelsilver articles may be plated directly ; nickel, iron and steel are given a preliminary coating of copper or silver or both from a cyanide bath. When plating copper and other base metal articles from a bath containing a bromide, room temperature should not be exceeded ; higher temperatures may, however, be employed if a preliminary strike of palladium is deposited from an ammoniacal solution.
Patent GB-498326-A (GB)
Title: Improvements in, or relating to, automatic circuit breakers and similar electrical switchgear
IPC: H01H71/74
Filed: 1937-07-20
Abstract: 498,326. Electrically - released switches. CRABTREE & CO., Ltd., J. A. (Schiele Industriewerke) July 20, 1937, Nos. 20011 and 31426. [Class 38 (v)] Means for setting and adjusting the limit current value of an overload release device for electric switchgear in which the gap between an abutment or stop and a movable tripoperated member is adjustable, is provided in the stop with an adjustment for giving an initial setting of the gap, the abutment or stop being mounted on a scale plate which is slidably adjustable independently of the initial setting, by the operation of an indicator movable over the scale plate, for obtaining trip operation at different current values according to the indicator-markings. The stop 1 is carried by a slidable nut-block 2, which extends through an aperture 10 in a scale-plate 5 into a recess 3 in the frame 4 and co-operates with a screw 6, which passes through a plain sleeve 8 fixed to the plate 5. The head of the screw 6 is prevented from longitudinal movement, so that rotation thereof moves the stop 1 relatively to the plate 5, whereby its distance from, for example, a compensating bimetal element as described in Specification 498,325, may be adjusted initially in the factory so as just to trip at a particular current value, whereupon the screw 6 may be sealed. This current value at which tripping just takes place corresponds to the position of an indicator 11 against a given marking on the scale 13 of the plate 5. For subsequent adjustment, the indicator 11 is rotated about pivot 12 on the plate 5 and by means of a cam 14 which bears on the frame 4 by means of a spring 18, causes the plate 5 to slide in grooves 7 in the frame 4, whereby, for any given current setting, tripping occurs in the same time-interval. In the case of bimetal release elements, the deflection is proportional to the square of the current, so that the gap must be adjusted accordingly. In a modification, Figs. 3, 4 (not shown), an indicator-pointer carries a roller which is slidable in a vertical groove in the frame and engages an inclined slot in the scale-plate, whereby the latter is caused to slide when the pointer is moved up and down.
Patent GB-690363-A (GB)
Title: Improvements in regulator systems and especially in speed regulator systems
Inventor: SALAUN PIERRE
IPC: G01P3/44
Filed: 1951-08-24
Abstract: 690,363. Automatic speed regulators. COMPAGNIE GENERALE POUR L'EQUIPMENT AERONAUTIQUE. Aug. 24, 1951, No. 20016/51. Class 38 (iv). A speed regulator comprises upper and lower limit control relays 2, 6, each having three windings: (i) main windings 3, 7 energized from a tachometer generator 1; (ii) opposing reference windings 4, 8 energized from a constant source 13, and (iii) pulsing windings 5, 9 opposing the upper limit and assisting the lower limit main windings whereby intermittent operation of the regulators 27, 28 is obtained as the correct speed is approached to prevent hunting. As shown, the pulsing current is obtained by a rotary switch 20 which gives equal intermittent periods of operation. Alternatively the pulsing current may be increased and decreased gradually during each pulse, whereby the period of each intermittent operation decreases as the correct speed is approached. In an alternative construction, the pulsing may be effected by mechanically reciprocating the energized core with respect to the relay armature, or a spring-loaded coverpiece attached to the armature, Fig. 2 (not shown). To compensate for sudden acceleration or deceleration of the motor, a transformer 31, Fig. 3, is connected between the tacho generator 1 and the main coils 3, 7, with its secondary connected to relays 32, 33 through polarity discriminating rectifiers, so that while the generator voltage (i.e. speed) is changing rapidly, one or the other of relays 32, 33 will be energized to actuate the speed regulator irrespective of the operation of the main speed control relays 2, 6.
Patent GB-473376-A (GB)
Title: Steerable and reversible toy vehicle
IPC: A63H17/40
Filed: 1936-07-20
Abstract: 473,376. Toys. FUCHS, K. July 20, 1936, No. 20018. [Class 132 (iii)] A toy vehicle, beetle, or mouse is provided with a bumper, feeler or head which on encountering an obstacle causes a steering wheel, which also acts as the driving wheel, to change or reverse the direction of travel of the toy. In the construction shown in Figs. 1 and 3, the rear wheels 19 are loosely mounted on their axle, the front wheels only lightly touch the running surface and the steering or reversing wheel 1, which also acts as a driving wheel, is provided with a lateral toothed rim 14 meshing with a pinion 6 keyed on the vertical driving axle 13 driven by the spring motor 9. The steering wheel 1 is rotatably mounted on an axle 17 fixed in the oscillatable U-shaped carrier 2 carrying rigid bushes, supported by a bracket 11 and fixed on the spring motor 9 respectively, in which the axle 13 runs freely, and having fixed to it a pinion 5 meshing with a rack formed on one wall of a slot in the end of a push rod 4 carrying a bumper 3 having rollers 10. The steering wheel 1 is returned to normal straight-ahead position by a spring 7 mounted on a pin 8 on the push rod 4. The bumper 3 may be provided with a sharp edge 12 at one end to obtain quicker reversal when the toy encounters an obstacle. When the toy simulates a beetle or mouse, a slidable or oscillatable feeler or head may replace the bumper 3. The axle carrying the rear wheels 19 may be slightly inclined in order to obtain easy reversal of the vehicle on a small surface.
Patent GB-1314474-A (GB)
Title: Hydrometer
IPC: G01N9/14
Filed: 1971-04-19
Abstract: 1314474 Hydrometer W HERRMANN 19 April 1971 [12 March 1970] 20146/71 Heading G1S A hydrometer comprises a measuring chamber 3 containing a plurality of buoyant members 4 of different specific gravities, the chamber having a perforate top bo and a perforate bottom bu to contain the buoyant members. Chamber 3 is connected to a polyethylene suction bulb 1 and to a nozzle 6. The buoyant members may be hollow bodies carrying weights or solid bodies injection moulded from plastics materials to which finely divided ballast has been added to adjust the specific gravity. There may be two or four buoyant members, and they may be of polygonal cross-section.
Patent GB-298887-A (GB)
IPC: D01H13/04
Filed: 1928-07-11
Abstract: 298,887. Schneider, H. June 6, 1928, [Convention date]. Thread-guides.-In a spinning, twisting, or like machine the threads 7, 8, Figs. 1 and 2, are guided by arched bodies 5, 6 of sheet metal or the like having surface projections which retain protruding fibres until they are, twisted into the thread. The projections may take the form of ribs, either horizontal or inclined in the direction of twist, or of stud-like members, Fig. 4. The guiding-surface extends over the range from the rollers 1, 2 to the spindles 3, 4. The edge of the guiding-surface may be arched upwardly to prevent the thread sliding off. Specification 235,371 is referred to.
Patent GB-587188-A (GB)
Title: Improvements in or relating to lifting devices
IPC: B66F7/06
Filed: 1944-10-19
Abstract: 587,188. Load - handling machines. STRATTON, J. W. Oct. 19, 1944, No. 20245. [Class 78(iii)] In a lifting device of the kind in which the load-carrying platform is supported by parallel links pivoted to a base member and the platform is retained in the raised position by a pivoted stay, the stay automatically follows the platform during lifting and is provided with recesses, into which drops a bar on the platform to retain the load at' various heights, and with means for masking the recesses to prevent the entry of the bar during lowering. The platform 11 comprises a pair of rails connected by crossmembers 14, 14<1> which are connected by pairs of pivoted parallel links 12 to similar cross-members 13, 13<1> connecting the base rails 10. Stays 16, 16<1>, Fig. 2, pivoted on the cross-member 13<1> are provided with recesses 23, 24 into which the cross-member 14<1> drops in succession as the platform moves upwards to provide a triangulated support for the load. Helical springs 18 cause the stays to follow the upward movement of the platform. Each recess, with the exception of the bottom one, is provided with a tumbler 25 which takes up the position shown in Fig. 3 when the cross-member is in a recess. In order to lower the platform it must first be raised sufficiently to permit the passage of the cross-member over the tip 27 of the tumbler. As soon as the tumbler is free it swings about its pivot 26 into the position shown in Fig. 1. The platform is then free to be lowered since the cross-member will ride over the curved edge 30 of the tumbler on to the straight part of the stay.
Patent GB-705207-A (GB)
Title: Improvements in or relating to needle press mechanism for straight-bar knitting machines
Inventor: SMETANA OTTO FREDERICK
IPC: D04B11/22
Filed: 1951-08-28
Abstract: 705,207. Knitting-machines. LIEBERKNECHT, Inc., K. Aug. 28, 1951, No. 20251/51. Class 74 (2) To enable fine adjustments to be made'in the loop length of a knitted fabric by varying the position of the needles with respect to the sinkers of a straight-bar machine, the horizontal link 20 connecting the pivoted lever 21 supporting the needle bar 8 is connected to the truck lever 18, from which the pressing movements are derived, by a pivot pin 26 carrying an eccentric sleeve 29. By turning the sleeve 29, the needles are moved either nearer to or further away from the pressing edge 22. To prevent accidental movement of the sleeve, it is provided with an indented head 29a, one of the indentations 29b being engaged by a spring locking tab 31 when the sleeve is suitably positioned to prevent further undesirable movement. The pivot connection between the link 20 and lever 21 is also adjustable to enable the effective length of the link to be further varied.
Patent GB-257725-A (GB)
Title: Improvements in or relating to horns for gramophones, loud speakers and like sound-producing apparatus
IPC: G10K13/00
Filed: 1925-08-12
Abstract: 257,725. Biggs, C. H. Aug. 12, 1925. Sound magnifying and directing appliances. - A horn is formed by spirally winding a strip of paper, fabric or other material gummed on one or both sides into a flat reel, which is then drawn axially into the desired shape. The horn is painted or varnished, and may be strengthened with longitudinal strips of fabric and a coating of plaster of Paris.
Patent GB-922601-A (GB)
Title: A method of electrolytically etching a semi-conductor device
IPC: C25F3/12
Filed: 1960-06-09
Abstract: 922,601. Transistors. SIEMENS-SCHUCKERTWERKE A.G. June 9, 1960 [June 9, 1959], No. 20354/60. Class 37. A semi-conductor device having two oppositely directed PN junctions is electrolytically etched by covering part but not all of the surface of the device with electrolyte, and connecting the positive terminal of a D.C. source to a P-conductive part of the device and the negative terminal to an electrode within the electrolyte. Emitter, collector and base electrodes (8, 9 and 3 and 4 respectively) are formed on a P-conductive silicon disc 2 by alloying gold-antimony and gold-boron alloys thereto, producing two oppositely directed PN junctions on the disc. Collector electrode 9 is then connected to a molybdenum disc 11 which is then soldered in a recess in the lower part 12 of the transistor housing. Two inverted U-shaped connecting bridges 13, 14 of gold or gold-plated silver strip are then alloyed to electrodes 3 and 4 and 8 respectively. A hollow cylindrical member 15 e.g. of polytetrafluorethylene is then releasably attached to the outer regions of the upper face of the transistor using silicon grease or paste. An electrolyte such as 4% hydrofluoric acid is then introduced into the cavity formed within member 15 and a platinum electrode 16 connected to the negative terminal of a D.C. source is dipped into the electrolyte close to the surface to be etched. Electrode 16 may be in the shape of an inverted U or, if etching is carried out before connecting bridges 13, 14 are added may be in the form of a ring or two half rings. A platinum wire 17 connects the transistor base electrode, i.e. the P-conductive region, to the positive battery terminal. The lead-in wires for the electrodes are protected by lacquering. After etching the emitter junctions member 15 is removed, the collector junction is chemically etched in known manner, and the housing is sealed. The polarizing voltage during the etching process is maintained below the value at which polishing of the semiconductor body takes place.
Patent GB-1503914-A (GB)
Title: Water craft
IPC: B63B3/70
Filed: 1975-05-09
Abstract: 1503914 Sponsons R D HAWKINS 9 May 1975 [9 May 1974] 20418/74 Heading B7A A watercraft has a main hull 3, an inner hull 4 both of glass fibre reinforced plastics material and a sponson 2 attached to each of its side walls 3 by means of a rigid tie structure including a transverse sheet member extending across the main hull 3. In one construction (Fig. 3) the tie structure comprises a plywood, metal or glass reinforced plastics sheet 14 extending across the hull and fastened to wooden longitudinal strips 15 and the upper part of each sponson is attached by a bracket 16 to the respective strip 15. Instead of the brackets 16, hinges may be used. In an alternative construction, Fig. 4 (not shown), one end of a tie member (20) of metal or glass reinforced plastics material is attached to the mounting bracket (16) of a respective sponson and the other end is attached to the bottom of the inner hull skin which then constitutes the transverse sheet. A plurality of such tie members (20) may be used along each side.
Patent GB-572458-A (GB)
Title: Improvements in the treatment of fatty oils
IPC: C11B5/00
Filed: 1943-12-08
Abstract: 572,458. Fatty oils and sperm wax compositions. EVANS, E. A., ELLIOTT, J. S., and WAKEFIELD & CO., Ltd., C. C. Dec. 8, 1943, No. 20548. [Class 91] Fatty oils and the liquid wax comprising sperm oil contain a small proportion of a polycyclic aromatic hydrocarbon having at least 4 condensed rings combined in the form of a pyrene nucleus. The compounds may contain further condensed nuclei in any position and any of the compounds may be substituted in any position by other radicals such as alkyl or hydroxyl. The compounds specified comprise pyrene, 3 : 4 benzpyrene, 4<1>-hydroxy-3 : 4 benzpyrene, tetrahydrobenzpyrene, and 1 : 12 benzperylene. Mixtures of the compounds may be used such as coal tar "heavy oil." In comparison tests, anthracene and phenanthrene are mentioned amongst others. The provisional specification also includes the 3 isomeric benzanthracenes and the 4 isomeric benzphenanthrenes. The fatty oils specified comprise castor, rapeseed, seal, ground nut, whale, linseed, lard, coconut, cod and neatsfoot oil. Specification 490,018 is referred to.
Patent GB-315790-A (GB)
Title: Apparatus for the removal of soaps from bulk containers
IPC: D06F39/02
Filed: 1929-07-04
Abstract: 315,790. Sinclair Refining Co., (Assignees of French, G.). July 16, 1928, [Convention date]. Mixing solids with fluids in flow.-Soft or other soaps are continuously or intermittently delivered as suds from drums, barrels, or other bulk containers by the apparatus shown. Hot or cold water or other liquid is passed under pressure through a pipe 3 ending in a jet 5 in a mixer 7 so that concentrated soap solution in a chamber 1 is drawn through perforations 8 and air is sucked in down a pipe 14. The mixture is delivered through a pipe 6 preferably fitted with a strainer 16. The solution in the chamber 1 is formed by placing therein soft or other soap, and admitting water through a by-pass 9 or perforations in the lower end of the pipe 3 or, where only small quantities of suds are delivered periodically, by letting the water below the valve 4 on the pipe 3 drain on to the soap. When aeration is not required the pipe 14 may be omitted. The perforations 11, 12, 13 in the pipe 9 may be arranged to spurt water not only on to the pipes 3, 6, 14 but also on to the chamber walls. The Specification as open to inspection under Sect. 91 (3) (a) describes the formation and delivery of solutions, suspensions, or emulsions of solid, semi-solid, or liquid materials by the apparatus. This subject-matter does not appear in the Specification as accepted.
Patent GB-1171416-A (GB)
Title: Improvements in and relating to Wire-Drawing Machines
Inventor: OTTO WOLFGANG
IPC: B21C9/00
Filed: 1968-05-01
Abstract: 1,171,416. Cooling drums. DRAHTZIEHMASCHINENWERK GRœNA VEB. 1 May, 1968, No. 20583/68. Heading B3P. A wire drawing drum has a cooling liquid supply pipe 14 provided with a nozzle 3 having one or more sprinkler holes 4 and extending through an aperture 5 in the drum cover 6 whereby the cooling liquid passes from an upper drum compartment 7 to a lower drum compartment 16 and trickles down the inner wall 9 of the drum. The cooling water is collected in the drawing shaft bearing 13 and after it has been cooled, is recirculated. The pipe 14 is mounted on a pivotable protective grille (18), (Fig. 3, not shown) in an air-cooling device 19, a solenoid valve switching off the water supply when the grille (18) is raised.
Patent GB-692103-A (GB)
Title: Improvements relating to holders for surgical and like instruments
Inventor: ANDREWS LEONARD
IPC: A61B19/02
Filed: 1950-08-21
Abstract: 692,103. Holders for surgical instruments. CARSBERG, Ltd., G. Aug. 20, 1951 [Aug. 21, 1950], No. 20678/50. Class 81 (ii). A holder for surgical instruments comprises a casing 1 having one or more flat sides, a fluidtight lid 2 and an instrument rack which fits slidably within the casing 1 and may be detachably secured at right angles to a flat side of the casing. One side 4 of the rack is provided with keyhole slots 9 for engagement with studs 10 on the casing 1. The casing is provided with a cover 11 fitted with a tray 12 on which the rack rests after removal from the casing 1 which contains surgical spirit. A pad 15 of packing material e.g. india-rubber may be provided so that the casing 1 is fluid tight when the hinged lid 2 is clamped in position.
Patent GB-795423-A (GB)
Title: Improvements in or relating to carving board and meat lock
IPC: A47J43/18
Filed: 1956-07-04
Abstract: 795,423. Carving boards. GRAHAM, G. C. July 4, 1956 [July 13, 1955], No. 20730/56. Class 28 (2). Meat is held down on a carving board by rotating a device 29 about its centre by its handle 33 whereby one or more inclined tines 31 thereon enter the meat and pull it down on the board. The board has also got prongs 24. The device is releasably clamped to the board by its spindle 28 passing through a hole in the board and clamped thereto by a slidable clip 37 with a slot the edges of which enter a groove in 28. Prongs 24a and 24b also act as limit stops for the rotation of the handle 33. The underside of the board 21 has suction cups 23 for the prongs and also to attach it to a serving platter 20 which can catch any drips and receive slices around its rim. A two-handled holding device is shown in Fig. 7 which is first rotated into the top of the meat, the meat then being turned over so that a suction cup engages the board. In Fig. 10 flanges 49 engaged by the fingers rotate the tines into the meat.
Patent GB-639507-A (GB)
Title: Improvements in and relating to windows
IPC: E06B3/28
Filed: 1948-08-06
Abstract: 639,507. Windows. BRAYBROOK, V. W. Aug. 6, 1948, No. 20786. [Class 20 (iii)] To facilitate the removal, reversal and replacement of the inner pane of double glazing, e.g. where such pane is held by a fillet as described in Specification 588,804, a telescopically-adjustable frame 10, 20, Fig. 2, is removably pivoted at the top and bottom 30 of one vertical edge to the inside of the stationary frame 31 of the window. The overhanging top bar 11 of the portion 10 and the sill 21 of the portion 20 are provided with inwardly facing grooves which are the same distance apart as the grooves formed by the fillets fixing the inner pane. On opening the casement 41, Fig. 4, removing the vertical fillet and swinging the frame 10, 20 in the opposite direction into alignment with the casement, the grooves are now in alignment so that the inner pane 40 can be slid into the frame. The frame is now removed and pivoted about its other vertical edge thus reversing the pane which may now be slid back into the casement. Cleaning of the inner faces of the double glazing is thus facilitated. The frame can be used with double-glazed stationary sashes.