baber/WOPTO huggingface dataset:
Patent GB-398944-A (GB)
Title: Improvements in and relating to printing on woollen goods
IPC: D06P1/649
Filed: 1932-04-29
Abstract: Printing.--In printing colours other than vat dyes on wool an improved penetration of the goods by the colour is obtained by the addition to the printing paste, in a proportion of at least 4 per cent of the whole paste, of a water-solutble, mono- or di-amido derivative of carbonic, thiocarbonic or imidocarbonic acid, free from substitution of the primary amino group or groups and still retaining at least one of these, which amido derivative remains uncondensed after the printing.  Specified amido derivatives are urea, urethanes, thiourea, thiourethanes, guanidine and salts thereof.  The following examples are specified: (1) An aqueous paste containing Crystal ponceau, British gum, oxalic acid and urea is printed on wool and the printed goods are steamed, washed and dried.  (2) Wool, dyed with Palatine fast green BGN, is printed with an aqueous discharge paste containing Euchrysin RDX, Phloxin O, British gum, thiodiglycol, glycerine, Rongalite C and urea, steamed, washed and dried.  (3) Wool is printed with a paste containing an acid dyestuff and 40 grammes of urea per litre of paste.
Patent GB-827974-A (GB)
Title: Improvements in or relating to devices for transmitting via a transmission line audio-frequency signals
IPC: H04B3/42
Filed: 1956-04-23
Abstract: 827,974. Repeaters. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 23, 1956 [April 26, 1955], No. 12367/56. Class 40 (4). In a two-way repeater for a system using signalling frequencies below the audio frequency band but of materially higher power, a by-pass circuit for the signalling frequencies includes a threshold device the discriminating level of which is higher than the maximum level of the audio frequencies but below the level of the signalling frequencies, and a limiter is provided in the output circuits of the amplifiers, the limiting level of which is between the maximum level of the audio frequencies and the discriminating level of the threshold device. The repeater, Fig. 1, which comprises transistor pre-amplifiers 13, 23 and push-pull output stages 15, 25, one for each direction, includes capacitors 32, 33 which block the ringing signals and has a signalling by-pass 31 which includes the threshold device 34. Rectifiers 36, 37 which are normally biased to cut-off by source 35 to provide the threshold effect are coupled to the by-pass by a transformer 48, and biased rectifier limiters 38, 39 are coupled to output circuits of the amplifiers to prevent oscillation when the by-pass is brought to a low impedance by signalling currents. In a modification, Fig. 3 (not shown), limiting is achieved by making the output transformers saturable, and the by-pass circuit includes coils wound on a saturable core. In one embodiment the threshold level of the threshold device is at least twice the limit level of the limiters.
Patent GB-1135448-A (GB)
Title: Fuel cells
Inventor: WORSHAM CHARLES HENRY
IPC: H01M8/08
Filed: 1966-03-21
Abstract: 1,135,448. Fuel cells. ESSO RESEARCH & ENG. CO. 21 March, 1966, No. 12367/66. Heading H1B. A non-ionic surface active agent is added to the electrolyte of a fuel cell fed with a gaseous fuel. The same non-ionic surfactants as disclosed in Specification 1,098,926 may be used.
Patent GB-585570-A (GB)
Title: Improvements in or relating to thermionic frequency mixing arrangements
IPC: H01J21/36
Filed: 1941-09-26
Abstract: 585,570. Electric resonators thermionic valve circuits. STANDARD TELE. PHONES & CABLES, Ltd., and MONTGOMERY, W. A. Sept. 26,_1941, No. 12504. [Classes 39 (i), 40 (iii) and 40 (v)] A frequency mixing arrangement for use at ultra-high-frequencies comprises a resonant chamber coupled to the input electrodes of a thermionic discharge device and fed with the frequencies to be mixed. The cathode and control grid of the device are located within the resonator while the output circuit is screened from the input circuit and tuned to the resultant frequency. The Figure shows a coaxial line resonator 1, 2 fed with the frequencies to be mixed over lines 15, 16 and coupled to the cathode 5 and grid 7 of the valve 4 which is preferably of the type described in Specification 585,448. An annular disc extension 8 on the valve grid is capacitively coupled to flange 13 on the line and to the screen 19 for the output circuit, mica rings 14 being interposed. The anode 12 is coupled to the first intermediate frequency amplifier 20 by a tuning coil 23. The line is preferably resonant to one of the input frequencies and may be telescopic for tuning purposes and the inner conductor may be capacitively coupled to the input frequency circuits in an adjustable manner.
Patent GB-580038-A (GB)
Title: Improvements in and relating to both retractable and retractile landing gear strut or leg
IPC: B64C25/10
Filed: 1945-05-18
Abstract: 580,038. Landing-gear. AIR-EQUIPEMENT. May 18, 1945, No. 12522. Convention date, July 19, 1943. [Class 4] In a landing-gear, which can be reduced in length when retracted without substantial compression force, the inner member 2 of the wheel-carrying shock-absorber is arranged to abut for shock-absorbing action against spaced protuberances 14 within the lower end of a sleeve 10 at the top of a guide 4 within which the outer member 1 of the shock-absorber slides up during shock-absorbing. The protuberances 14 are normally encountered by similar spaced protuberances on the member 2 and the two sets of protuberances are put out of register during retraction by axial rotation of the sleeve 10 so that member 2 moves freely into the sleeve, a cable 25, passing over a fixed pulley 26, drawing up member 1 in its guide and compressing a spring 8 therein ; the cable also rotates-sleeve 10 by means of a lever 21 at the top. In another construction the rotatable sleeve 10 is internally threaded to mesh with the threaded head of the member 2 which is drawn into the sleeve when the sleeve is rotated by toothed gearing actuated by the movement of the shock-absorber during its retraction.
Patent GB-818271-A (GB)
Title: Improvements in or relating to implements for use in inflammable or explosive atmospheres
IPC: C22C9/01
Filed: 1955-04-30
Abstract: Implements such as spades, shovels, picks, hammers, hammer picks or the like, for use in an explosive or inflammable atmosphere are tipped with a non-sparking metal such as a copper alloy by high temperature brazing or welding.  The body of the implement may be of steel or beryllium-copper alloy and the non-sparking tip of aluminium-bronze.  The tip may be deposited on the body from a rod using an oxy-acetylene flame, electric arc, or by an atomic hydrogen or argon are welding process.  The temperature used should preferably be within 150 DEG C. of the melting point of the body metal.  The following compositions of aluminium-bronze welding rods as percentages by weight are given: Al. 8,5-10,5, Ni. 3,0-5,5, Fe. 3,0-5,5, Mn. 3,0 max, Zn. 0,5 max, impurities 0,3 max, remainder copper; Al. 9,4, Ni. 3,5, Fe. 3,9, Mn. 3,2, Cu. 78,7.  Examples are also given of the size of rod, welding-gas pressures and temperatures used.  The tip may be subsequently hardened by heat-treatment.  A complete coating of non-sparking metal may be deposted on the body by welding or brazing.ALSO:Aluminium-bronze alloys for use as welding rods have the following percentage compositions by weight: Al 8.5-10.5.  Ni 3.0-5.5, Fe 3.0-5.5, Mn 3.0 max, Zn 0.5 max, impurities 0.3 max, remainder copper; Al 9.4, Ni 3.5, Fe 3.9, Mn 3.2, Cu 78.7.
Patent GB-486058-A (GB)
Title: Improvements in or relating to fluid-tight sealing means for doors and windows
IPC: E06B7/23
Filed: 1937-05-03
Abstract: 486,058. Draught-excluders. BARME, F. May 3, 1937, Nos. 12603 and 12604. Convention dates, Aug. 22, 1936 and Feb. 20, 1937. [Class 20 (iii)] A fluid-tight sealing device for windows and doors comprises a metal channel strip attached to the sill or frame and holding a resilient strip 14 of rubber or like material in a dovetail groove on one or both sides. The strip may be hollow for housing electric wires or the like, and the channel may have a step formed on its upper surface parallel to its edges.
Patent GB-311704-A (GB)
Title: Improvements in vacuum or low pressure metallic vapour lamps
IPC: F21V29/00
Filed: 1929-04-23
Abstract: 311,704. Bogdandy, S. von, and Wamoscher, L. May 14, 1928, [Convention date]. Vacuum tubes; low-pressure metallic-vapour apparatus.-The electrode container of a discharge lamp a is cooled by a surrounding metal sheath c thermally connected to the reflector b which may be provided with heat-radiating fins d.
Patent GB-183933-A (GB)
Title: Improvements in or relating to cargo slings
IPC: B66C1/12
Filed: 1921-05-03
Abstract: 183,933. Franklin, A. May 3, 1921. Slings. - The sling comprises a series of metal members r mounted transversely on flexible metal carriers p. The members r may be metal tubes and the carriers p may be wire ropes passing through holes in the tubes, the tubes being spaced apart by distance-pieces q, or the tubes may be mounted in links forming a chain. In a modification, the sling comprises a number of triangular sections, built up of members such as r, p, which are assembled about a central ring.
Patent GB-112006-A (GB)
Title: Improvements in Suction Actuated Liquid Feed Systems.
Inventor: STOKES CHARLES LAWRENCE
IPC: F02M37/02
Filed: 1917-09-05
Abstract: 112,006. Stokes, C. L. Oct. 9, 1916, [Convention date]. Addition to 110,170. Vacuum apparatus. - The parent Specification describes apparatus for raising liquids, e.g., liquid fuel, by continuously applied suction from a main tank to a service reservoir whence it is discharged by gravity to the carburettor, air being admitted to the ascending liquid column, such air, after entering the reservoir, being drawn away to the source of suction, e.g. the engine induction pipe. According to the invention, the suction is applied to the reservoir intermittently, air is admitted through a restricted opening to the ascension pipe at a point above the normal fuel level therein, air may be admitted through a fuel-controlled opening to the ascension pipe where it leaves the main tank, and float-actuated means are provided to cut off the suction to the service tank which may be formed in one with the carburettor fuel chamber. The reservoir 25 is connected through a pipe 40 with the carburettor 11, through a pipe 33 with the induction pipe 34 above the throttle valve 35, and through a pipe 13 with the low. level main tank 10. Air may be supplied to the connexion 14 through a valve 17 from a pipe 18, the upper end of which extends above the fuel level in the tank. Air is admitted also to the pipe 13 through a restricted orifice 27, Fig. 3, a stand pipe 36 being provided to prevent escape of fuel should the orifice 27 come below the fuel level in the tank 10. The reservoir is provided with a valve 36, Fig. 4, actuated by a comparatively heavy float to cut off intermittently the suction through the pipe 33. A non-return valve 41 prevents fuel from being drawn back into the reservoir from the carburettor. In action, the flow of air through the orifice 27 being too small to destroy the vacuum in the pipe 13, fuel mixed with air is drawn into the reservoir until the level has risen sufficiently to close the valve 36 and stop the suction. The fuel in the pipe 13 then falls below the orifice 27 which places the reservoir in communication with the atmosphere to allow the liquid to flow away by gravity. In a modification the reservoir is formed integral with the carburettor fuel chamber, a hinged valve replacing the ball valve 41.
Patent GB-771146-A (GB)
Title: Improvements in or relating to electrical programme switches
IPC: D06F34/30
Filed: 1955-05-03
Abstract: 771,146. Washing machines. SAIA AKT.- GES. May 3, 1955 [July 19, 1954], No. 12766/55. Class 138 (2). [Also in Group XXXVII] A washing machine has a time switch automatically controlling the following operations: prewashing, washing in hot, warm or tepid water, hot rinsing, warm rinsing, two cold rinsing, clear rinsing and centrifuging. The last two steps may be eliminated so that the washing cycle ends after 75 minutes instead of the usual 85 minutes. The cycle may be arranged to start at the 39th minute so as to omit the prewashing and hot washing.
Patent GB-543105-A (GB)
Title: Improvements in or relating to portable cinematograph projection screens
IPC: G03B21/58
Filed: 1940-08-09
Abstract: 543,105. Projection screens. STABLEFORD, J. L. Aug. 9, 1940, No. 12803. [Class 97 (i)] A screen 9 secured to a spring loaded roller 7 in a box 1 and supported, when in use, by a removable mast 20 centrally set up on the box behind the screen, both screen and mast being housed in the box when out of use, is attached at its upper edge to a lath 10 fixed or attachable to a trolley 13 movable up and down the mast, movement being effected, for example, by a cable 19 and winch 32; collapsable stretcher arms 37, 38 may connect the box and lath. As shown in Figs. 7 and 8, the trolley 13 has rollers 14 running within a tubular mast 20 having inturned portions 21 forming a longitudinal slot through which a stem 12 projects from the trolley to carry the lath 10 by a bracket 11 and bolts. The cable 19 is connected to one of the bolts and passes over a pulley 35, within a guide 34 at the top of the mast, to the winch. The mast is held by brackets 23, 24 within the box, when in use, and rests on spaced brackets 27, as shown in Fig. 6, when out of use. The lath 10 rests, when out of use, on resilient and recessed strip metal supports engaging its ends, and the trolley 13 is then disposed partly within the upper bracket 23. The arms 37, 38 are respectively pivoted to the lath 10, and to brackets 41 on the bottom of the box; they are pivoted together by bolts and wing nuts 43, and are preferably provided with plates 45 preventing them from opening to positions of absolute alignment. A shield 46 extends longitudinally of the box to prevent debris from falling on the roller 7. The hinged lid of the box is provided with clips to hold, while out of use, bars which may be secured to the ends of the box to increase the effective base in a direction perpendicular to the screen. Other clips within the box may hold the winch handle when it is not in use. A modification is described in which the mast is erected in cleats on the exterior of the back of the box, the trolley is detachably secured to the lath, and the arms 38 are housed in channels at the ends of the box when in extended position.
Patent GB-597636-A (GB)
Title: Feeding mechanism with transfer arm for power presses and like machines
IPC: B21D43/02
Filed: 1944-07-05
Abstract: 597,636. Machinery guards; safety devices. HEYMAN, M. D., and HEYMAN, I. K., [trading as HEYMAN CO.]. July 5, 1944, No. 12803. [Class 80(iv)] [Also in Group XXII] A power press (see Group XXII) includes a transfer arm for moving work-pieces from an intermittently rotated table to beneath the press head. Said arm comprises portion 109 a portion 112 and an end gripping portion 120. The part 112 is hinged to the part 109 at 111 and is normally urged by a spring 113 so that an adjustable stop screw abuts the part 109. If during its movement the arm meets with a resistance, the part 112 tilts against the action of the spring 113 and operates a switch 115 to open a controlling circuit and so prevent the operation of the press. The press head is operated through a one-revolution clutch operated by a trip rod 146 through a bellcrank lever 147, rod 150 and bell-crank lever 152 from a cam 151 on a shaft 62, Fig. 10. Should the switch 115 be opened or should another safety switch 159 be opened by the removal of a safety screen 157, the circuit through a solenoid 145 will be broken. This will release a cradle 156 in which rests a rod 150 and so break the operative connection between the rod and the bell-crank lever 147 and prevent the operation of the one-revolution clutch.
Patent GB-557830-A (GB)
Title: Apparatus for playing an indoor game
IPC: A63F3/02
Filed: 1942-09-11
Abstract: 557,830. Board games. HOENIG, E. Sept. 11, 1942, No. 12843. [Class 132 (ii)] Apparatus for playing a board game comprises a subdivided and substantially flat playing area and two sets of pieces distinguished by colour and similarly subdivided into three different types of characters, one set having a greater number of pieces than the other. Examples of three types of pieces are shown in Figs. 3, 4, and 5. In Fig. 1 is shown a board on which the game may be played. The board is divided into squares, thirteen by fifteen, some of the squares being distinctively coloured in groups of two and three as indicated by shading lines. Other squares are marked by lines (shown by broken lines) of distinctive colour. In Fig. 6 is shown a fourth type of piece representing obstacles. These pieces may be included in the set which is numerically the smaller, or may be included in both sets in the inverse proportion to their number.
Patent GB-180543-A (GB)
Title: Improvements in dolly-like laundry appliances
IPC: D06F15/00
Filed: 1921-05-06
Abstract: 180,543. Johnson, F. A. L. May 6,1921. Washing-plangers. - A suction plunger has one-way valves disposed around the handle socket in combination with a perforated shell below the valves to prevent fouling by the clothes. The plunger is divided into two porticns by a diaphragm e in which are ball-valves g, the lower portion containing the inner shell b and openings being provided in the wall of the upper portion. In a modification, the diaphragm e is dispensed with, and flap-valves g are provicled in the wall of the outer shell, and the' shell b may be replaced by a perforated plate p.
Patent GB-1462381-A (GB)
Title: Disc brakes for vehicles
IPC: F16D55/00
Filed: 1973-03-17
Abstract: 1462381 Sliding-caliper disc brakes GIRLING Ltd 8 March 1974 [17 March 1973] 12969/73 Heading F2E  In a sliding-caliper disc brake, a key 27 interposed between one end face of the caliper 17 and the inner face of an arm 4 of the drag taking member is held in place by a resilient member 29 having tags 31 at its opposite ends straddling the key and engaging the axially spaced opposite ends of arm 4. Each arm 3 or 4 of the drag taking member 1 has integral axial extensions (Fig. 1, not shown). Caliper 17 has groove 21 held in contact with projection 25 of arm 3 and its extensions by the resilient member 29. The directly-actuated friction pad assembly 7 has portions engaging respective recesses 10, 11, in guiding surfaces 5, 6 of arms 3, 4, respectively, and is urged into contact with surface 5 by a resilient metal strip 14 whose end tabs embrace the axially disposed opposite ends of arm 4. The indirectly-actuated friction pad assembly 34 (Fig. 8) has abutment portions 38 each located in a notch 37 provided in reaction limb 18 of caliper 17 and the trailing portion 38 is urged into contact with its respective notch by a corrugated spring 41 located on an axial projection 39 of backing plate 35. In a modification (Figs. 9, 10, not shown) each extension 23 has a further downwardly directed extension and the indirectly-actuated pad assembly is located between these further extensions in the same way as pad assembly 7 is located on the other side of the disc, as described above. In this case, reaction limb 18 of caliper 17 merely abuts backing plate 35.
Patent GB-101793-A (GB)
Title: Improvements in or relating to Carburettors for Internal-combustion Engines.
Inventor: MEGEVET CHARLES JULES
IPC: F01M11/06
Filed: 1916-09-13
Abstract: 101,793. Megevet, C. J., and Picker, L. Oct. 11, 1915, [Convention date]. Liquid level, maintaining.-The Specification as open to inspection under Sect. 91 (3) (a) describes means for lubricating the connecting-rods of fourstroke-cycle internal-combustion engines in which the connecting-rod big-ends are provided with scoop-like projections F which dip below the surface of oil in cups G, which are supplied from the lowest part of the crank chamber by a pump H driven by an eccentric I on the cam shaft g. The oil is delivered through an horizontal pipe K into the cup G, which is provided with a sluice L actuated by an outside lever M to vary the level of the oil surface. The oil is supplied from a tank N which may be adjusted in height by the screw O. The filling-plug N<1> carries a rod Q which keeps a spring-loaded valve R open when the plug is closed. The end of the delivery pipe P just touches the oil serface, and should any lowering of oil level occur a bubble of air passes up the pipe P and displaces a corresponding quantity of oil from the tank. The valve R prevents the tank from being emptied when the plug N<1> is removed. This subject-matter does not appear in the Specification as accepted.
Patent GB-579658-A (GB)
Title: Improvements in or relating to fuze-setting apparatus
IPC: F42C17/00
Filed: 1943-08-12
Abstract: 579,658. Projectile fuze-setters. HARVEY, V. P., and MOLINS MACHINE CO., Ltd. Aug. 12, 1943, No. 13090. [Class 9 (i)] The clutch device described in Specification 578,330 for locking the fuze-engaging member of a fuze-setting apparatus to an adjustable stop controlled, e.g. by a follow-the-pointer hand wheel, is modified in that the separate catch-pawl 40 of the prior Specification is omitted, a recess 104, Fig. 3, being provided adjacent the stop 4 in the adjustable wheel 42, into which the arm 5 of the driving-pawl on the fuze-engaging member is deflected by the stop 4 to de-clutch the fuze-engaging member from its driving disc 31, Fig. 5, and simultaneously to lock it to the adjustable stop 4. The driving-pawl 36 to which the arm .5 is rigidly secured has an arcuate surface which rides on the driving disc 31 when the stop 4 de-clutches the fuze-engaging member, the arm 5 being thereby prevented from leaving the recess 104 until reverse movement of the driving disc 31 takes place to return the fuzeengaging member to zero position.
Patent GB-540202-A (GB)
Title: Improvements in or relating to motor vehicles
IPC: B60K17/34
Filed: 1940-08-21
Abstract: 540,202. Spring suspensions. STRAUSSLER, N. Aug. 21, 1940, No. 13270. [Class 108 (ii)] [Also in Group XXXI] The power unit 7 at one end of the vehicle drives the axle 4 at the other end through a propeller shaft enclosed in a rigid housing 1,. 3 acting as a torque member and radius rod for the axle 4, the other axle 13 is driven through either an open or enclosed propeller shaft from a gear casing 2 forming part of the housing I, 3 and one of the axles 4 is connected to the frame by semi-elliptic springs 9 while the other axle is connected to the frame by a transverse semielliptic spring 12 which may be either fixed or pivoted at its centre to the frame. In the construction shown in plan in Fig. 5 the transverse spring comprises two quarter elliptic springs 24, 25 shackled at their outer ends to the axle 13 and fixed at their inner ends to a member 26 pivoted at 22 to the frame (not shown). The torque housing 1, 2, 3 is connected to the frame by a ball joint 5, and the two parts 1, 3 thereof may be co-axial as shown in Fig. 1 or may be arranged as shown in Figs. 1 and 8. The casing 2 contains a train of gears 27, 29 and a secondary shaft 30 from which the axle 13 is driven, and also the axle 4 in the forms shown in Figs. 1 and 8. This gear train may comprise an axuiliary two-speed gear as shown in Fig. 8. Power take-offs may be provided on the ends of the primary or secondary shafts 28, 30 projecting from the casing 2.
Patent GB-132842-A (GB)
IPC: C01G45/12
Abstract: 132,842. Dreyfus, C., and Bloch, J. J. Aug. 24, 1918. Potassium permanganate.-In the manufacture of potassium permanganate, the sodium manganate employed as starting-material is first transformed by electrolysis into sodium permanganate, which is then converted into potassium permanganate by the interaction in solution with the quantitative amount of a potassium salt. Reference has been directed by the Comptroller to Specification 126,756.