baber/WOPTO huggingface dataset:
Patent GB-651737-A (GB)
Title: Improvements in and relating to depth indicators for mine cages and the like
IPC: B66B3/02
Filed: 1948-02-11
Abstract: 651,737. Depth-position indicators. BRITISH THOMSON-HOUSTON CO., Ltd., and PETCH, T. H. Feb. 11, 1948, No. 4040. [Class 78 (ii)] [Also in Group XIX] A depth indicator associated with winding gear for indicating the position of a mine cage has a main pointer moving through less than 360 degrees over a fixed scale to give the approximate position and a plurality of auxiliary pointers moving behind, yet visible through the fixed scale and driven at a speed proportional to that of the drum of the winding gear, the auxiliary pointers being movable relative to one another and adapted to register with a predetermined mark on the fixed scale to give the exact position of the mine cage. A pointer 4 on a shaft 5 driven by a wheel 6 from the winding drum rotates through less than 360 degrees for a complete wind and co-operates with a scale on a dial, whose divisions correspond to complete twins of the drum, to indicate the approximate position of the cage. The dial is carried by a frame plate upon which it may be mounted by webs which may be transparent or the dial and plate may be formed from a single piece of transparent material rendered opaque except for an annulus round the dial. A number of pointers 7a, 7b, 7c are carried in sleeves in arms 8a, 8b, 8c into which they may be pushed when not required, the arms being mounted behind the dial on hubs 9a, 9b, 9c held on a sleeve 10 between a spring washer 12 and lock nuts 13, 14 so as to be frictionally driven by the sleeve mounted in a bearing 16 and rotated by a wheel 15 driven from the winding drum, preferably at the speed of the drum. The friction drive may be overcome to move the pointers relative to one another. Initially a signal is given to the operator when the cage is at an intermediate stoping place and the position of an auxiliary pointer against the periphery of the dial is noted for future reference. As shown in Fig. 4, the pointers may be in the form of spring slips sprung on to a rim carried by spokes radiating from a hub and may be turned thereon into and out of indicating position. A pointer 28, Figs. 5a, 5b may be mounted on a ball 29 and clamped between members 24 and 25 where it may be turned edge or broadside on as required for indicating. In another form the pointer has a hinged flap which matches the background colour of the annulus and may be turned back to expose the contrasting colour of the pointer when required for use.
Patent GB-288769-A (GB)
Title: Improvements in apparatus for separating seeds, husks, and the like from the other parts of fruit and vegetables
IPC: A23N1/00
Filed: 1927-02-14
Abstract: 288,769. Schaefer, F. M. Feb. 14, 1927. Clamps, eccentric. - A machine for separating seeds &c. from fruit &c. is clamped to a table 12 by means comprising ratchet teeth 6 engaged by a plate 7 which carries a handle 8 having a cam and a projection 10 which universally supports a gripping block 11.
Patent GB-771062-A (GB)
Title: Improvements relating to textile machines
Inventor: CRAXTON ROBERT TREVOR
IPC: D01H13/16
Filed: 1954-02-11
Abstract: 771,062. Suction end-catchers ; stop motions; alarms. BRITISH THOMSONHOUSTON CO., Ltd. Feb. 8, 1955 [Feb. 11, 1954], No. 4066/54. Classes 120 (2) and 120 (3). [Also in Group XL (b) ] Relates to a textile machine in which broken textile material, such as roving or yarn, passes along a suction duct and interrupts a light beam thereby producing a change in the output of a photo-electric cell. The invention provides a frequency-selective filter so that the said output change operates through the filter to affect an indicator and/or means to stop the machine. In the Figures, broken roving or yarn drawn through suction duct 3 intercepts light beam 4 and the resultant steepfronted impulse in the output of photo-cell 6 passes through filter network F and via amplifier A fires a thyraton TC to operate an indicator or stop mechanism for the machine.
Patent GB-233076-A (GB)
Title: Improvements in grinding machines
IPC: B24B19/18
Filed: 1924-02-18
Abstract: 233,076. Tattersall, R. B. Feb. 18, 1924. Wire cards, grinding.-A grinding-roller A is mounted in bearings a slidable in vertical guides .a' and having internally screwed extensions B. Engaging the extensions are screws b driven alternately in opposite directions, through gearing d, d<1>, by bevel gears d<5>, d<6> driven by a bevel gear d<4> and alternately clutched to a shaft d<2> by a slidable clutch F, which is moved, through a rod g, by a lever 0. The lever 0 is rocked by a projection b<4> on one of the bearing extensions B. The card flats are carried by links j<4> carried by shafts f<1>, and the flats are fed up to the grinding- roller by eccentrics j<1> carried by a shaft j<2> and engaging levers j<3> on the shaft f<1>, the shaft j<2> is rotated step by step by a ratchet wheel L thereon, which is engaged by a pawl t on one of the extensions B. The grinding-roller is driven by a belt h, which passes over pulleys H<1>, h<1>, h<2>, h<3> carried by levers H<3>, H'. According to the Provisional Specification cranks or eccentrics may be employed for reciprocating the grinding- roller.
Patent GB-538664-A (GB)
Title: Improvements in and relating to the production of fudge and grained icing
IPC: A23G9/20
Filed: 1940-03-05
Abstract: 538,664. Confectionery. CORN PRODUCTS REFINING CO. March 5, 1940, No. 4127. Convention date, April 20, 1939. [Class 28 (i)] A dry powder for the production of or convertible into fudge or grained icing by the mere admixture therewith of hot water or milk is made by mixing sugar, oil or melted fat and cocoa, with or without other flavouring materials, in a dry and uncooked state with a small quantity of ground pre-gelatinized starch. The starch ingredient may be obtained by momentarily subjecting starch in a wet state to heat and, preferably, pressure, for example as described in Specification 332,680, [Class 121]. The quantity of pre-gelatinized starch may, for example, be 5 per cent by weight of the main ingredient.
Patent GB-1006187-A (GB)
Title: Improvements in nuclear reactors
IPC: G21C7/22
Filed: 1963-02-01
Abstract: 1,006,187. Controlling reactors. BELGE VULCAIN S.A. Feb. 1, 1963 [Feb. 13, 1962], No. 4166/63. Drawings to Specification. Heading G6C. In a nuclear reactor the poisoning (or reduction in reactivity) due to xenon 135 is compensated by controlling the concentration of neutron absorbers in the fluid moderator, coolant or reflector. In a pressurized water reactor incorporating spectral shift, boron, in the form of boric acid is introduced into the water in quantities controlled so as to maintain the total poisoning effect of the xenon 135 and boron at a required level. Automatic control of the boron injection may be effected in accordance with the temperature of the main coolant by thermocouple controlled valves.
Patent GB-553703-A (GB)
Title: Improvements in or relating to petrol lighters
IPC: F23Q2/14
Filed: 1941-03-28
Abstract: 553,703. Pyrophoric lighters. LIST, B. H. F. March 28, 1941, No. 4191. [Class 75 (iii)] A petrol lighter comprises a cylindrical body A having a flint strip E secured in a groove in its external surface, a cap B threaded on the upper end of the body A and formed with an internally threaded member to receive a striker member, and a cap C threaded on its lower end. The body A is filled with absorbent material which is charged with petrol after removing the cap C. The striker member may consist of a boss G, a screwthreaded shank H; a split tube J, and a striking rod K wrapped with asbestos wick N and having a rounded end M. Ignition of the wick is effected by rubbing the end M over the flint E and the flame produced may be used to produce a larger flame on the top of the absorbent pad. The lower cap may be fitted with a swivelling attachment-ring D. The striking rod may be adjustable relatively to the tube J to compensate for wear.
Patent GB-123838-A (GB)
Title: Improvements in and relating to Wristlets.
Inventor: ARKINSTALL JOSEPH
IPC: G04B37/14
Filed: 1918-03-11
Abstract: 123,838. Arkinstall, J. March 11, 1918. Lockets, securing to wrist.-The link and strap connexion described in Specification 117,331 applied to a watch wristlet is applied to a locket wristlet. The wristlet strap or the like is threaded through the links 2 hinged to the locket mount 1 into the back of which a box is fitted.
Patent GB-683486-A (GB)
Title: Improvements in or relating to centrifugal separating machines
IPC: B01D11/04
Filed: 1950-02-20
Abstract: 683,486. Centrifugal machines; mixing appliances. WESTFALIA SEPARATOR AKT.-GES. Feb. 20, 1950 [March 4, 1949], No. 4242/50. Classes 23 and 86 Relates to a centrifuge for continuously separating liquid mixtures flowi n g in countercurrent and comprising at least two liquids of different specific gravities wherein the centrifugal drum of the centrifuge is divided into stages each having at least one stripping disc and channel for each of the liquids. The discs are mounted one above the other on a stationary shaft which is fixed to the casing of the centrifuge and extends beyond the drum and the stripping channels are connected to discharge channels which are disposed in the stationary shaft longitudinally thereof together with the feed channels for the liquids to be treated. Each of the stages I, II, III, of the centrifuge has a distributing plate 6, 7, 8 and a separating disc 9, 10, 11 respectively. The stationary shaft 19 carries stripping discs 12, 13 and 14 for the lighter liquid, such as butyl acetate, and stripping discs 15, 16 and 17 for the heavier liquid, such as a mixture of phenol and water. The heavy and light liquids are supplied through channels 29, 25 and after mixing during their passage through the centrifuge, wherein the phenol is absorbed by the butyl acetate, are discharged through channels 18, 31 respectively. A manually operable valve 20-24 controls the flow through the discs 15, 16 and 17. The lighter liquid may be fed to the upper or underside of the disc or direct to the channel thereof. Specification 683,489 is referred to.
Patent GB-832618-A (GB)
Title: Contact assembly for electric plugboards
IPC: C10L1/22
Filed: 1956-02-10
Abstract: 832,618. Two-part couplings; plug boards. AMP Inc. Feb. 10, 1956 [Feb. 10, 1955], No. 4266/56. Class 38 (1). In a plug-board assembly wherein a plugboard carrying pins is loosely pivoted to a fixed plug-board carrying blade contacts and the two sets of contacts are engaged by first swinging the boards together, so that the contacts overlap, and then moving the pivoted board along the fixed board, the blade contacts 19, Fig. 5, according to one construction each have an end portion 35 twisted through 45 degrees and formed with a transverse V-shaped ridge 37, one leg of which is longer than the other. The pin, during its contact-engaging movement transversely of the blade, first engages the end of the longer leg of the ridge 37, subsequent movement causing the blade to be deflected sideways and the ridge to wipe over a section of the pin. When the shorter limb of the ridge is engaged by the pin the point of contact moves back along the wiped portion of the pin to a position approximately in the centre thereof, the pin then lying adjacent the edge of the blade. The other end of the blade carries a socket 31, which receives a plug 33 on a lead 18, and the contact is mounted in an aperture in the fixed plug board by inserting the socket therethrough until shoulders 25 on the end of the blade engage a groove in one face of the board, whereupon wings 29 on an extension 27 of the socket 31 are spread into engagement with the other face of the board. In the modification shown in Fig. 9, the rib 43 is in the form of a ramp which increases in height from the leading edge 43a whereby deflection of the blade 41 is effected without twisting the end as in the previous embodiment. Alternatively, Fig. 12, the leading edge only of the rib 45 may be in the form of a short, steep ramp so that full deflection of the blade is obtained as soon as the pin commences to traverse the blade. Fig. 13 shows a simplified construction wherein the contact rib 49 is formed by bending over the end of the blade 53. A locking effect may be obtained as shown in Fig. 15 by tapering the shorter leg 55b of rib 55 oppositely 'to the leg 55a, but not to the same extent, so that increased contact pressure is necessary to disengage the contacts. Another construction is shown in Fig. 17 wherein a straight rib 59 in the form of a ramp extends diagonally across the blade 61 whilst in Fig. 18 a'similar effect is obtained with a contact bent up from wire 63 and having an inclined ramp portion 67. Specification 796,333 is referred to.
Patent GB-119397-A (GB)
Title: Improvements in Gas Heating Stoves.
Inventor: DAVIS JACOB ELMAN
IPC: F24C15/24
Filed: 1918-03-12
Abstract: 119,397. Davis, J. E. March 12, 1918. Gas fires ; radiants.-A gasheater comprises a fire-clay back 4 with staggered projections 5; those in the upper rows are of V=section, and those in lower rows are of triangular section. The apices of the projections are directed towards the flames from a row of Bunsen burners 6, which are supplied with gas by a perforated pipe 13.
Patent GB-241508-A (GB)
Title: Improvements relating to carburettors
IPC: F02M19/03
Filed: 1925-02-17
Abstract: 241,508. Ehrich & Graetz Akt.-Ges., (Assignees of Graetzin-Ges. f³r Kraftmaschinenteile). Oct. 15, 1924, [Convention date]. Spray carburettors.-Two sliding members g, k are adapted to be moved by Bowden wires across the air passages, the slide k controlling the inlet of air and the slide g the outlet of combustible mixture. The slides are hollowed out at their lower ends to form, in their lowest position, a chamber j into which project a fuel nozzle i and an air nozzle h. The air nozzle, which is interchangeable, is stated to assist in the spraying of the fuel and in correcting the mixture strength. The slide g is cut away at m to form an outlet for the mixture at starting.
Patent GB-328356-A (GB)
Title: Improvements in or relating to golfing accessories
IPC: A63B59/00
Filed: 1929-02-09
Abstract: 328,356. Carleton, L. J. Feb. 9, 1929. Golf-clubs, appliances for treating. - A device for wiping the handles of golf-clubs comprises an annular or tubular member having an inwardly projecting annular flexible flange, the contractile inner periphery of which presents a circular wiping edge normally of less diameter than the club handle. As shown in Fig. 2, the device comprises a tubular member 1 formed in two separable, longitudinal halves 3, 4 and containing a series of wiping-elements 10. Each wiping- element, Fig. 5, comprises a rigid cylinder 13 covered by a sheath 14 of flexible material such as chamois, the ends of the sheath being circumferentially contracted by elastic elements 18 to a diameter normally smaller than that of the handle H of a golf club. The tubular member 1 is supported on a horizontal position, the entrance of rain &c. being minimized by extensions 4<a> of the upper half 4. Draining-apertures 7 are formed in the lower half 3. In a modification, the device is portable and adapted to be held in the hand while in use. Specification 231,981, [Class 19, Brushing &c.], is referred to.
Patent GB-544770-A (GB)
Title: Improvements in electric storage batteries
IPC: H01M4/68
Filed: 1941-04-02
Abstract: 544,770. Alloys CHLORIDE ELECTRICAL STORAGE CO., Ltd. April 2, 1941, No. 4428. Convention date, Feb. 28. [Class 82 (i)] [Also in Group XXXVI] The positive grid or grid structure of a storage battery is made of a lead-antimony alloy containing 0.04-0.6 per cent. of silver. The amount of antimony may be up to 7 per cent.
Patent GB-492241-A (GB)
Title: Improvements in, or relating to, spiral plate heat exchangers for fluids
IPC: F28D9/04
Filed: 1938-02-12
Abstract: 492,241. Heat-exchangers. BENTELI, A. Feb. 12, 1938, No. 4445. Convention date, Feb. 25, 1937. [Class 64 (iii)] A plate heat-exchanger unit for sterilizing or pasteurizing consists of a number of metallic foils 1 wound spirally to form passages for the liquid, and provided with insulating layers 4. The liquid enters the tube 6, Fig. 1, and on reaching a heating or cooling element 5 flows in countercurrent to the exit 7, being cooled again (or heated) by the inflowing stream. In a modification, two fluids flow in countercurrent separated by foils 3, Fig. 2, one fluid enters at 10 and leaves at 11, and the other enters at 6 and leaves at 9. Further modifications provide spiral partitions in the fluid passages, and means for rotating the apparatus.
Patent GB-438497-A (GB)
Title: Improvements in and relating to rectifiers
IPC: H02M7/15
Filed: 1934-02-10
Abstract: 438,497. Rectifying alternating cnrrent. AKT.-GES. BROWN, BOVERI, & CIE, Baden, Switzerland. Feb. 10, 1934, No. 4503. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 21, 1934]. [Class 38 (ii)] Relates to a grid-controlled rectifier arrangement in which the grids are connected to the corresponding anodes through discharge devices m1-m6 and adjustable sources of potential such as batteries c or the secondary windings of an auxiliary transformer hand consists in connecting the grids to the cathode through resistances r1-r6 and a source of negative potential such as a battery or generator n, so that the grids are kept at a negative potential relative to the cathode up to the moment of ignition. The moment of ignition is varied by adjusting tappings on the batteries c or the potentiometers p1. In the form where a generator n is used the resistance p2 in the field may be adjusted conjointly with the potentiometer p1. Additional grids d connected to the anodes through resistances may be provided.
Patent GB-123847-A (GB)
Title: Improvements in Tractors more particularly for use in Agriculture.
IPC: A01B71/06
Filed: 1918-03-14
Abstract: 123,847. Austin Motor Co., and Austin, Sir H. March 14, 1918. Frame components, forms of, and applying and combining.-The frame of a tractor consists of the engine casing A and change-speed gear box B, both of tubular construction, and the rear axle casing C, the engine with its casing and the change-speed gear and box being removable as separate units.
Patent GB-703524-A (GB)
Title: Penicillin salts of nuclear substituted n-isobutyl benzylamines
IPC: C07D499/14
Filed: 1952-02-20
Abstract: A penicillin salt having a depot effect when injected, is produced by reacting penicillin, or a salt thereof, with a base of general formula <FORM:0703524/IV(b)/1> wherein one R is hydrogen and the other is an alkoxy radical of at most four carbon atoms, or phenoxy or benzyloxy; or a salt of such a base.  The salts are reacted in aqueous solution; the acid and base in a non-polar solvent such as ether.  The salts of penicillin are the alkali metal salts, especially the sodium and potassium salts.  Preferred salts of the base are the acetate, hydrochloride and sulphate.  Any penicillin may be used, penicillin G being preferred.  Examples illustrate the preparation of the penicillin G salts of (a) 3-n-butoxy-N-isobutyl benzylamine; (b) 3-n-propoxy-N-isobutyl benzylamine; (c) 3-isopropoxy-N-isobutyl benzylamine; (d) 4-n-butoxy-N-isobutyl benzylamine; (e) 3-benzyloxy-N-isobutyl benzylamine, and (f) 4-phenoxy-N-isobutyl-benzylamine.  Bases are prepared by reacting a suitably substituted benzaldehyde, e.g. 3-n-butoxybenzaldehyde with isobutylamine, e.g. in methanol solution, and reducing the so formed N-isobutyl-benzalimine by catalytic reduction, e.g. with Raney nickel and hydrogen, by sodium amalgum or electrolytically. The nuclear substituted benzaldehyde is prepared by reacting m- or p-hydroxy benzaldehyde with a halogen compound of the desired substituent group, e.g. alkyl or benzyl chloride, bromide or iodide.ALSO:A therapeutic preparation of prolonged effect when injected comprises an aqueous or oily vehicle having dispersed therein a salt of penicillin with a base of general formula <FORM:0703524/VI/1> wherein one R is hydrogen and the other is an alkoxy of 1 to 4 C atoms, or phenoxy, or benzyloxy, (see Group IV(b)).  The penicillin may be any penicillin or mixture of penicillins.  The oily vehicle may contain beeswax or other wax, or a gelling agent such as aluminium mono-stearate.  Specified salts are the salts of penicillin G with 3-n-butoxy-, 3-n-propoxy-, 3-isopropoxy-, 4-n-butoxy-, 3-benzyloxy- and 4-phenoxy-, derivatives of N-isobutyl benzylamine.
Patent GB-143613-A (GB)
Title: Improvements in and connected with actions for typewriters
IPC: B41J7/24
Filed: 1919-02-24
Abstract: 143,613. Ellis, H. Feb. 24, 1919. Type-lever machines.-Relates to machines in which the type-levers are detachably pivoted on a slotted segment and are retained by the engagement of the ends of the type-levers with teeth on a keeper-plate which can be shifted to permit of detachment of the type-levers. According to the invention, the type-levers 12 are formed with rounded ends 26 which engage the teeth 28a of the keeper-plate 27 and are formed with slots 25 for engaging a pivot wire 23 in the segment 15; further, the pivots 14 of the action-links 13 are arranged above the pivot wire. The keeper-plate is formed with slots for engaging studs 29 on the segment, and is normally held by a spring 30 in the position shown in Fig. 2; to permit of detachment of the type-levers, the keeper-plate is shifted to bring the slots 28 into register with the slots 22 in the segment. To facilitate assembling, the links 13 may be permanently pivoted to the type-levers and formed with hook ends 11 for engaging pins on the sub-levers 9. The key-levers 1 may be formed with slots 7 which engage pins 8 on the sub-levers. The pivot wire 23 is disposed in a vertical slot 21 in the segment and is pressed into the bottom of the slot by screws 24 or other means which engage the ends of the pivot wire. The returning-springs 3 may, as described in Specification 146,811, be connected to a rocking plate 6 adjustable by means of a screw 4. Case-shift mechanism.-The segment 15 may be arranged to shift vertically for change of case, the movements being limited bv the engagement of stop-screws 20, Fig. 2, on the segment with stopscrews 19 on the guides 50.
Patent GB-371085-A (GB)
Title: Improvements in and relating to electric switches more particularly for use with wireless receivers
IPC: H01H15/04
Filed: 1931-02-14
Abstract: 371,085. Mechanical switches without quick action. NICHOLS, J. T., 542, Kingsland Road, Hackney, London. Feb. 14, 1931, No. 4647. [Class 38 (v).] A switch, suitable for controlling the filament current of a wireless receiving set, comprises an insulating tube a carrying at one end a split brass socket c having a connecting terminal c<5>. The other end of the tube a carries a split brass tube b through which slides an operating-rod e having its end e<2> formed as a contact for engaging the socket c. A shoulder e3 limits the movement in each direction. A lug f and terminal f<1> are provided for making connection to the movable contact and a bush b<5> and nut b<6> are provided for one-hole fixing to a panel.
Patent GB-123764-A (GB)
Title: Improvements in Internal Combustion Engines which are Started or Reversed by Means of Compressed Air.
Inventor: WEYLAND JONAS ALBERT
IPC: F01L13/00
Filed: 1919-02-25
Abstract: 123,764. Weyland, J. A. Feb. 28, 1918, [Convention date]. Starting.-In an adjustable valve-gear for starting in either direction by means of compressed air, the engine works on a two-stroke cycle at starting, the exhaust valve then being worked by an additional lever 1<1> carrying an adjustable cam bowl 5<1> and having a lug 13<1> engaging a lug 13 on the exhaust valve lever 1. The cam bowls 5, 5<1> and a corresponding cam bowl on the lever of the compreseed-air starting-valve are brought into action by cams 10, 11 &c. on the shaft 2, the cams being such that the exhaust-valve lever 1<1> is actuated for a longer period than the starting-valve lever. This prevents excessive pressure in the cylinder on the compression strode when normal working begins. The two cams 11 are for starting in opposite directions. Specifications 5346/07 and 12069/14, [Class 7 (vi), Internal-combnstion engines, Valves &c. for], are referred to.