baber/WOPTO huggingface dataset:
Patent GB-211297-A (GB)
Title: Improvements in and relating to grabs
IPC: B66C3/08
Filed: 1922-12-30
Abstract: 211,297. Barnard, D. J. Dec. 30, 1922. Grab-buckets.-Relates to single-chain grabs in which the load is supported by a button on the chain whilst the grab is disengaged from the discharging ring 37 and lowered to the ground with the buckets open, and consists in improved grabhead mechanism for co-operation with the button and the discharging ring. The lifting chain passes round pulleys 14, 15 and 12, 13 on the lower beam and on the grab-head respectively. The grab-head mechanism is mounted between plates 9 on the top cross bars 6, 7, and comprises a sliding member 22 working in a thimble 21 secured in the grab head. The member 22 carries weighted trip-pawls 32 co-operating with the ring 37, and the thimble 21 carries weighted lifting pawls 24, which project through slots 28 and co-operate with the button 38 on the lifting chain. With the buckets closed and supported by the chain, the parts are in the position shown in Fig. 7, the member 22 resting on a part 30, 31 mounted on the lower beam. On lifting the closed grab up to the discharging ring the pawls 32 pass through the ring (see Fig. 9) and on slackening the chain, the load is transferred to the ring, the grab-head thimble 21 resting on the lower flange of the sliding member 22 which is now supported by the ring. On paying out the chain the buckets open and the button 38 passes beneath the lifting pawls 24. On hauling in, the button engages the pawls 24, see Fig. 5, and the load is transferred to the chain so that the thimble 21 slides over the member 22 and disengages the pawls 32 from the ring. The grab can now be lowered with the buckets open, the member 22 resting upon the pawls 24. When the buckets are grounded and the chain slackened, see Fig. 8, member 22 slides in the thimble 21, and turns the pawls 24 free of the button. On hauling in, the buckets close, and when the member 22 is lifted in the grab head by engagement with the lower beam the pawls 24 and 32 resume their initial position.
Patent GB-1397726-A (GB)
Title: Tobacco feed systems
IPC: A24C5/18
Filed: 1971-07-28
Abstract: 1397726 Pneumatic tobacco feeder MOLINS LTD 27 July 1972 [28 July 1971] 35516/71 Heading A2C [Also in Divisions B1-B2] An apparatus for pneumatically feeding tobacco to a cigarette making machine includes an air separator, Fig 1, comprising a chamber 4 having an inlet 2 for receiving a flow of tobacco 14 carried by air, a deflector 8 which deflects the tobacco along a curved path towards an outlet 10 and an air outlet 6 remote from the deflector 8, the tobacco outlet 10 having a smaller cross-sectional area than the inlet 2, and the deflector 8 being so shaped that it progressively reduces the transverse dimensions of the tobacco stream with the aid of centrifugal force to enable the tobacco to pass out through the outlet 10. A high-speed knurled roller 13 is mounted at the outlet 10 to force the tobacco through the oulet into the inlet 12 of a spreading device which is under vacuum. The pipe leading to the inlet 2 is curved so that the tobacco is thrown out by centrifugal force and reaches the deflector as a flat, wide, low density stream. Air which passes into the spreading device through the outlet 10 is returned to the separator through a pipe 15. The cross-sectional shape of the deflector, Figs 4-6 (not shown,) changes progressively from a semi-circular shape, through a substantially V-shaped cross-section, to a narrow through-shaped cross-section with a semi-circular bottom of smaller radius than the inlet 2. The deflector is pivoted to the chamber at 16 and is swung automatically inwards by the pivotable piston rod 18 of an air cylinder 16A to the position shown in chain-dotted lines to deflect the tobacco past the outlet 10 when the cigarette-making machine is stopped. At the same time as the deflector 8 is moved inwards, a second deflector 22 which lies just within a corresponding curved slot in the end wall 4B of the chamber, Fig 3 (not shown), moves axially into the chamber under the control of a second cylinder 24. The deflector 22 is carried by a straight member 26 in turn carried by posts 28, 30 slidable in bearings 32, 34. When the deflector 22 moves into the chamber to the chain-dotted line position (Fig 3) it forms a smooth continuation of the part 4 of the peripheral wall of the chamber so that the tobacco moving along part 4C, instead of continuing along part 4D of the wall, is deflected inwards towards the air outlet 6. A deflector part 36 serves to deflect the tobacco axially into the outlet 6. In a modification, Fig 7, instead of the deflector 22, a part 38 of the wall of the chamber is pivoted at 40 and can be moved inwards, a seal member being provided at 38A. In a further modification, Fig 8, the air outlet 42 is tangential and has a rectangular crosssection at its inner end.
Patent GB-507919-A (GB)
Title: The manufacture of pure cupric oxychloride
IPC: C01G3/06
Filed: 1937-12-22
Abstract: 507,919. Copper oxychloride. CARPMAEL, A. (I. G. Farbenindustrie Akt.-Ges.) Dec. 22, 1937, No. 35520. [Class 1 (iii)] Copper oxychloride is obtained from copper salt solutions contaminated by iron, lead, arsenic, and it may be other metals such as silver by precipitating the copper as cuprous chloride with excess of cement copper, introducing the separated, cuprous chloride-cement copper mixture into a chloride solution containing sulphate, oxidizing partially until iron and arsenic are removed, and treating the filtered solution with oxygen or gases containing oxygen. The separated oxychloride may be washed first with sodium chloride solution and then with water. Solutions obtained by lixiviating chlorinated roasted copper-bearing pyrites may be employed, and if their arsenic content is high an iron salt may be added. Cupric chloride formed at the same time as the oxychloride may be precipitated as oxychloride by a base before or after separation of the main oxychloride product. The chloride solution containing sulphate may be a common salt solution containing sodium sulphate. Oxidation for removal of iron and arsenic may be effected by means of air or by addition of cupric oxychloride ; in the latter case the pH of the solution is adjusted to 6-7 to ensure complete removal of iron. Oxidation for the production of oxychloride may be effected by pumping the solution through nozzles in an air or oxygen atmosphere, or by atomizing it in a chamber filled with heated oxygen. Specification 450,514 is referred to. -
Patent GB-932964-A (GB)
Title: Hand stamp for cancelling postage stamps and the like
IPC: B41K1/22
Filed: 1960-10-17
Abstract: 932,964. Hand stamps. P. A. TRAPHAGEN. Oct. 17, 1960, No. 35543/60. Class 100 (2). A hand stamp, e.g. for cancelling postage stamps, comprises a frame 11, a roller 12 having printing indicia 17 thereon and rotatably supported on said frame, a C-shaped magnet 18 attached to the frame, and a C-shaped magnet 18<SP>1</SP> attached to the roller so that the forces between the magnets causes the roller to be correctly indexed for printing. Washers 16<SP>1</SP> are placed between the magnets and the roller is mounted on an axle 13 in a slot in the frame. The stamp includes an inking roller, Fig. 2 (not shown). In the embodiment of Fig. 4 an iron bar 18 is supported in a groove 124 in the non-magnetic roller 112 and a bar magnet 119 is supported on the frame 111. The roller is unbalanced by a weight 122 and holes 123. In the embodiment of Fig. 5 steel slugs 221 are set into each end of an unbalanced printing roller 212 and magnets on both sides of the roller cause it to be correctly indexed. In the embodiment of Figs. 8-10 (not shown), a disc-shaped magnet attached to the roller faces a similar magnet attached to the frame and the roller is indexed by the attraction of opposite poles. The embodiment of Figs. 11-14 includes a frame 411, an ink roll, a magnetic shield 427, and a hollow roller die 412 containing a wheel barrel supporting wheels 436-442 which may be set to the proper year, month, day, and A.M. or P.M. One magnet 418 is cemented to the base of the shield 427 and the other 419 is cemented to a spacer 434 attached to a cover-plate 426 rigidly connected to the roller 412. Grooves in the wheels 436-142 receive balls 432 which stop the wheels in the set position. After the wheels have been set the wheels 436-442 are correctly indexed by the magnets 418, 419.
Patent GB-847227-A (GB)
Title: Improved electric water heater
IPC: B05B1/24
Filed: 1956-11-22
Abstract: 847,227. Electric water heaters. VALUES PTY Ltd. Nov. 22, 1956 [Dec. 12, 1955], No. 35799/56. Class 39(3). [Also in Group XXIX] An electric water heater comprises a cylindrical container 10 with a domed cover 26, a threaded boss 12 for connection to a water supply through a manually operated control valve, and a water outlet 13 which is formed integrally with the container bottom 14 and is surrounded by a sheathed electric heating coil 22 supported from a plate 15. The inlet end of the outlet 13 is positioned close to the top of the container and a perforated metal plate 18, which is preferably flexible, covers the lower end to form a shower rose. The heater coil terminals 23 and an earthing terminal 25 are located in the space between the plate 15 and the cover 26, and the coil is connected to the electric power supply through a manually operated switch which may be of the tumbler type arranged to operate only when the water supply is turned on. The shower rose may be pivotally connected to the outlet.
Patent GB-817142-A (GB)
Title: Improvements in and relating to the production of aromatic amines
Inventor: PRESTON ROBERT WILLIAM GUNN
Filed: 1956-11-23
Abstract: The invention comprises a process for the production of 4-alkyl, 4-aryl, or 4-cyclohexyl amino diphenylamines by reductively alkylating or arylating an N-nitroso-4-nitrodiphenylamine, which has been obtained by reacting diphenylamine with nitrogen tetroxide in the presence of a hydrocarbon solvent at temperatures up to 10 DEG C. in the liquid phase with a ketone, an aldehyde or a cyclohexanone in the presence of a metal hydrogenation catalyst.  The process of the invention may be carried out at 30-300 atmospheres gauge at 100-180 DEG  C.  Catalysts specified are platinum, for example 2-3 per cent on charcoal, copper on chromia, and copper-on-zinc oxide. The catalysts may be pelleted.  The process may be carried out continuously and part of the reaction product amounting to at least 50 per cent of the total feed is preferably recycled.  The reaction mixture is also preferably passed upwards through the catalyst bed. A suitable space velocity is 1 gram mol. of diphenylamine derivative per litre of bulk catalyst volume per hour, and the amount of hydrogen used should give a liquid phase operation.  The proportion of ketone or aldehyde should preferably be at least stoichiometric, and there should be sufficient liquid which may be an inert solvent or excess of ketone or aldehyde to dissolve the nitrosonitro compound.  Examples of inert solvents are C1-C6 aliphatic alcohols. The process of the invention may be used for the reductive alkylation of N-nitroso-4-nitrodiphenylamines substituted with e.g. methyl, ethyl, phenyl, benzyl, or tolyl with ketones (e.g. those containing up to 12 carbon atoms) or aldehydes, containing alkyl, aryl, alkaryl, or aralkyl groups, or with a cyclohexanone which may be similarly substituted, e.g. phenyl methyl, tolyl methyl, and benzyl methyl ketones, acetaldehyde, propionaldehyde, benzaldehyde, and methyl, propyl and phenyl cyclohexanones. Examples are given of the preparation of 4-isopropylamino diphenylamine, 4 - sec. - butylamino diphenylamine, and 4 - cyclohexylamine diphenylamine.  An example is also given of the preparation of N-nitroso-4-nitrodiphenylamine. Specifications 772,081 and 789,702 are referred to.
Patent GB-1070246-A (GB)
Title: Process for the production of cycloalkane derivatives
IPC: C07C29/16
Filed: 1964-09-02
Abstract: Hydroxymethylcycloalkanes are prepared by heating a cycloalkene with carbon monoxide and hydrogen under pressure in the presence of a cobalt compound using an alcohol or ester as solvent, e.g. ethanol, butanol, or an ethyl or butyl ester.  Preferably the cycloakane has from 5 to 12 carbon atoms in the ring and the action is carried out at a temperature of between 125-170 DEG  C., and at a gauge pressure of between 50 and 300 atmospheres.  The cobalt compound may be dissolved in the alcohol ester and heated under pressure with carbon monoxide and hydrogen before the cycloalkene is introduced. Examples show the production of hydroxy-methycyclo-pentane, -hexane, -octane, -do-decane from the corresponding cycloalkenes.
Patent GB-815721-A (GB)
Title: Improvements in and relating to the production of electroluminescent layers
IPC: H05B33/10
Filed: 1956-01-16
Abstract: 815,721. Electroluminescence. SYLVANIA ELECTRIC PRODUCTS Inc. Jan. 16, 1956 [Jan. 17, 1955], No. 36226/57. Divided out of 815,720. Drawings to Specification. Class 39(1). The subject matter of this Specification is substantially the same as that in Specification 815,720 but the claims are concerned with the settling process in which two coatings of a mixture of phosphor and ceramic or glass material are settled from a suspension in a liquid medium, the coatings being individually dried and fired.
Patent GB-863063-A (GB)
Title: Improvements relating to the supporting insulatedly of helical conductors
Inventor: SCOTT WILLIAM JOSEPH
IPC: H01J23/26
Filed: 1956-11-28
Abstract: 863,063. Travelling-wave tubes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 20, 1957 [Nov. 28, 1956], No. 36412/56. Class 39(1). A process of producing a supported helical conductor consists in winding the wire of which the helix is to be composed upon a mandrel, locating the wound helix and mandrel within a glass tube, heating the glass tube to soften it, collapsing the tube on to the helix and finally removing the mandrel. If the glass has been collapsed to such an extent as to contact and adhere to the mandrel, it is necessary to remove the mandrel with a chemical reagent. An auxiliary wire or wires which are also removed later by a chemical reagent may be wound between the turns of the helix to space them apart. One auxiliary wire having a diameter less than that of the main wire may serve to space the turns of the helix, and a second auxiliary wire of greater diameter than the first may be wound around the helix so as to lie partly in the space between the turns of the helix. By this means the glass, when collapsed on to the helix, provides, when viewed in longitudinal cross-section, salient teeth which engage the turns of the helix. The helix is thus spaced away from the main body of the glass. In an alternative arrangement an auxiliary wire, the turns of which are spaced from one another, is first wound helically around the wire to be formed into the helix. The overwound auxiliary wire serves to space the turns of the helix and also ensures that the glass, when collapsed on to the helix, contacts only discrete portions of the outer periphery of the helix. The mandrel and auxiliary wire or wires may be made of molybdenum and the helix of tungsten in which case the mandrel and auxiliary wire may be removed by immersing in a mixture of nitric and sulphuric acid. The glass tube may be collapsed so that contact is only made at angularly spaced regions of the outer periphery of the helix. The mandrel may be subjected to tension to maintain its axis linear. Reference has been directed by the Comptroller to Specification 808,282.
Patent GB-176564-A (GB)
Title: Tubular rock drill
IPC: E21B10/02
Filed: 1920-12-30
Abstract: 176,564. Hundrieser, H. Dec. 30, 1920. Drills. - The supports e<1> for the curved cutters a' of a tubular rock drill are guided by a curved rib f. The orifices in the crown affording access to the cutters are closed by water-tight plates h.
Patent GB-1195138-A (GB)
Title: Fried Potato Products
Inventor: LIEPA ALEXANDER LEON
IPC: A23L19/18
Filed: 1968-07-31
Abstract: 1,195,138. Fried potato products. PROCTER & GAMBLE CO. 31 July, 1968, No. 36543/68. Heading A2B. Fried potato products, especially crisps, are prepared by mixing water with dehydrated cooked potato having a reducing sugar content of 0-5 wt. per cent. and an iodine index of 0.01-6 to form a coherent workable dough comprising 25-55 wt. per cent. water and having a lipid content defined by the relationship where Y is the lipid content in per cent by weight of the dehydrated potato, X is the iodine index, and A has a value not greater than 2.70, forming the dough into pieces, and frying.
Patent GB-1091202-A (GB)
Title: Improvements in and relating to synchronous electrical machines
Inventor: RICHARDSON PHILIP
IPC: H02K3/42
Filed: 1963-09-17
Abstract: 1,091,202. Dynamo-electric machine cores. C. A. PARSONS & CO. Ltd. Dec. 16, 1964 [Sept. 17, 1963], No. 36586/63. Heading H2A. In a synchronous A.C. machine, e.g. a large 2-pole turbo-generator, heating due to stray losses around the stator core end structure is minimized by individual laminations 2b of the laminated core end portions having a thickness less than that of the individual laminations 2b<SP>11</SP> in the remainder of the core. The thinner laminations 2b<SP>1</SP> may be of equal thickness, or graded thickness reducing towards the core ends; in addition their outside diameter may be progressively reduced as at B towards the core ends, they may have interspersed Cu or A1 sheets (6), Fig. 3, which may be cooled by hydrogen, water or oil circulated through passages therein, they may have different magnetic characteristics from the remainder laminations 2b<SP>11</SP>, and the machine may include known magnetic shields.
Patent GB-1018420-A (GB)
Title: Airtight box and a blank of cardboard or the like for making said box
IPC: B65D5/42
Filed: 1963-09-17
Abstract: 1,018,420. Lined boxes. CARTOTECNICA POLIGRAFICA A. & G. FRATELLI BIANCHI S.p.A. Sept. 17, 1963 [Sept. 22, 1962], No. 36616/63. Heading B8P. A lined box comprises an outer cardboard casing C (Fig. 2, not shown) with an inner sealed lining F of air-, moisture- or fatimpervious material fixed thereto by a plurality of adhesive strips 122, 124 whereby a hinged lid D may be torn from the cardboard casing along lines of perforation 108, 110 without tearing the lining 80 and may be re-closed by co-operation of a tongue 118 in a slit 11. The box is folded from a blank into tubular form with the ends overlapping at the opening edge and is frilled at one side prior to folding in and gluing the lining and side flaps.
Patent GB-815601-A (GB)
Title: Improvements relating to communication systems
IPC: H03D1/22
Filed: 1955-12-21
Abstract: 815,601. Automatic frequency and amplitude control systems. GENERAL ELECTRIC CO. Dec. 21, 1955 [Dec. 23, 1954], No. 36658/55. Class 38 (4). [Also in Group XL (c)] In a radio receiver for suppressed carrier transmission, the incoming signal is mixed with a locally generated carrier, and the phase of this carrier is automatically controlled by additionally mixing the incoming signal with the local carrier after a 90-degree phase-shift, and comparing the outputs of the two mixers in a phase comparator to obtain a signal which controls the phase of the local carrier generator. The output of the local carrier oscillator 3 is applied directly to one mixer 1 and through a 90-degree phase-shift network 2a to a mixer 2. The incoming suppressed carrier signal is applied to the suppressor grids of both mixers. The carrier components of the outputs of both mixers are removed by low-pass filters 4, 5 and the audio components are amplified at 6, 7 and passed by cathode followers to a phase comparator 8. The output of amplifier 6 is also passed to the audio output terminal. It is shown that the result of comparing the phases of the two audio signals at 8 is to produce an error signal which varies in magnitude with the magnitude of the audio signals and which varies in polarity according to whether the signal from the local oscillator leads or lags the carrier of the incoming signal. The error signal is applied as a bias to a diode 10 which is in series with one of the resistors of the phase-shift network 75 controlling the frequency of the local oscillator 3, and by effectively varying this resistance corrects the phase of the oscillator output. Oscillator amplitude control.-The amplitude of oscillation of the R.C. oscillator 3 is automatically stabilized by detecting the oscillation amplitude at diode 97 and applying a corrective bias to grid of the oscillator valve 73.
Patent GB-399353-A (GB)
Title: Improvements in and relating to engine starting devices
IPC: F02N99/00
Filed: 1932-12-28
Abstract: 399,353. Turning-gear. ROES, G., 152, Boulevard de 1a Gare, Paris. Dec. 28, 1932, No. 36694. Convention date, Dec. 31, 1931. [Class 7 (v).] In a device for starting motor-cycle or other motor-vehicle engines by the momentum of the vehicle, a free-wheel mechanism 5 is mounted on an extension 1 of the engine crank-shaft 2 and comprises a clutch element 7 which can be engaged with a co-operating clutch element 14 in driving engagement with the crank-shaft. The element 4 of the free-wheel is fixed on the shaft 1 and the element 7 is integral with a driving sprocket wheel 8 geared to the rear wheel of the cycle &c. The clutch element 14 is normally held out of engagement by a spring 16 and, when the engine is free-wheeling, can be moved into engagement to start the engine, by a member 19 pivoted at 20 and actuated through a Bowden cable 21. When the engine starts, it drives the vehicle through the free-wheel 5 and the sprocket gear 8. The friction clutch 7, 14 can be engaged to allow the engine to be used as a brake on a dangerous gradient.
Patent GB-1235670-A (GB)
Title: Improvements in or relating to apparatus for use in intercommunication telephone systems
Inventor: CURRY ALAN
IPC: H04M9/00
Filed: 1967-08-10
Abstract: 1,235,670. Intercommunication systems. GENERAL ELECTRIC CO. Ltd. 7 Nov., 1968 [10 Aug., 1967], No. 36724/67. Heading H4K. In an intercommunication system in which each station has two supply potentials and during each call a speech path is established between different supply potentials at the two stations involved, selective connection to one of the two potentials at a station is controlled using a transistor. As described, the potentials are of opposite polarity supplied to all stations via common supply lines and a speech path is established between the positive supply at the calling station and the negative supply at the called station. Each station has a home line 1 which when the handset is on hook is connected via hook-switch contacts 2 to a buzzer 5 and which when the handset is raised for an incoming call is connected via the hook-switch contacts 2, the microphone 8 and receiver 9, the emitter-collector path of a transistor 12 and further hook-switch contacts 13 to the negative supply line 7. The station initiates a call by lifting the handset and depressing a selflatching key associated with the wanted station. In the latched position, the key closes a corresponding pair of contacts 4 connecting the home line of the wanted station to a point 3, closes a further corresponding pair of contacts 15 connecting the positive supply line 6 to the point 3 via the microphone 8 and receiver 9 thus completing the speech path at the calling end. Transistor 12 is cut off due to the presence of the diode. To alert the called subscriber the key is depressed beyond its latched position and closes a further contact pair 17 connecting the negative supply line directly to the point 3 and thus to the home line of the called station. Since the receiver of the called station is on hook this negative potential is connected to the buzzer of the called station. The called station answers completing the speech path via its microphone and speaker as described above. In an alternative embodiment (not detailed) the buzzer 5 is eliminated and the transistor 12 is in the on-hook condition connected by means of hook switch contacts to operate as a tone-calling oscillator supplying the receiver of the handset.