baber/WOPTO huggingface dataset:
Patent GB-254429-A (GB)
Title: Improvements in or relating to elevator systems, and apparatus in connection therewith
IPC: B65G67/00
Filed: 1925-04-22
Abstract: 254,429. Lane, F., and Machin, W. A. April 22, 1925. Hoists with guided carriers. -Apparatus for tipping waste from mines comprises a truck b hauled up the track a by a rope h, and a transverse cylindrical cage d resting on rollers c on the truck, and tipped automatically by a driving connection between the cage and the track. The cage may itself carry the waste material or serve as a tippler for separate wagons or tubs. As shown in Figs. 1 and 3 the cage c is formed with lateral hoppers e into which the waste fuel is fed from shoots g'. The cage is tipped when the flanges f run on to the raised rails a<3>. A counterweight i for the truck b runs on rails i<1>. In a modification, Fig. 5, the cage is provided with rails d<1> for several tubs k, the rails projecting at both sides of the cage so that the waste is tipped at both sides of the track as well as between the track rails. The cage is tipped by a cnain m secured to it at m<1> and hanging freely at m<1> until engaged by a catch near the upper end of the track. Either method of tipping may be applied to each form of cage. Specification 255,939 is referred to.
Patent GB-1427515-A (GB)
Title: Explosive gas detectors
IPC: G01N27/16
Filed: 1972-03-07
Abstract: 1427515 Measuring gas concentration electrically TRADE AND INDUSTRY SECRETARY OF STATE FOR 30 May 1973 [7 March 1972] 10492/72 Heading G1N An explosive gas detector has a reaction chamber 10 containing a catalyst pellet 14, a valve 12 providing a means for admitting a discrete sample of a gas mixture into the reaction chamber and retaining it sealed therein for a sufficient time to determine the height of the maximum of the temperature characteristic of the catalyst body and also the rate of decrease of the temperature characteristic see Fig. 4 whereby it acts on the catalyst to a sufficient extent to enable the entire effect it is capable of producing in the catalyst pellet to be determined and an integrating measuring means for determining the entire effect and producing an integrated output signal which gives a measure of the total heat of oxidation of the combustible gas in the discrete sample. In an alternative embodiment Fig. 3 (not shown) inlet and exhaust apertures and valves are provided. The temperature is sensed by a thermistor or thermocouple.
Patent GB-451972-A (GB)
Title: Improvements in and relating to canting travelling head cross cut saws
IPC: B27B5/20
Filed: 1935-04-05
Abstract: 451,972. Travelling head cross-cut saws. ROBINSON & SON, Ltd., T., and ROBINSON, C. J., Railway Works, Rochdale. April 5, 1935, No. 10524. [Class 145 (ii)] The canting head of a travelling head crosscut saw machine is pivoted about an exhaust pipe mounted horizontally at one side of the machine and immediately behind the saw, the axis of the exhaust pipe if produced being substantially tangential to the bottom edge of the saw at its point of lowest cutting whereby sawdust created by the saw blade at all cutting positions is immediately passed into the exhaust pipe without any adjustment thereof. The saw 16 is mounted on the spindle 15 of the driving motor 14 carried by the slide 12 movable by the handle 13 on the base 11 ; the latter is pivotally mounted by extensions 10 on the exhaust pipe 9 which is carried by parts 8 on the member 7 mounted on top of the ram 6 which can be adjusted vertically and rotationally in the column 5. Canting is effected by a screw 18 working in a pivoted block 20 and pivoted nut 21 having a locking handle 22. Specification 435,789 is referred to.
Patent GB-969730-A (GB)
Title: Separating workpieces from surface treatment media
IPC: B03B4/00
Filed: 1963-03-18
Abstract: 969,730. Pneumatic separating. MAX SPALECK G.m.b.H. March 18, 1963 [April 18, 1962], No. 10528/63. Heading B2H. [Also in Division B3] Workpieces leaving the vibratory tank 1 of a machine for the dry surface treatment of workpieces by vibration are separated from treatment media and abraded dust by a stream of air which acts in the same direction as, oppositely to, or in cross-current relationship with, the emptying stream of workpieces so as to entrain the media and dust. An emptying- shoot 7, Figs. 1 and 3, is either rigidly mounted  on the tank 1 so that it may vibrate with the tank or mounted independently in a stationary position on either the machine frame or ground by use of resilient mountings. The inlet opening into the shoot for the material to be separated is controlled by a flap 2 which can be  adjusted to any desired position and locked by handles 8a, 9. The material falls down steps 10 which are adjustable about a pivot 11 while the air is directed through the steps and out through a flange 13 to an exhauster ; alternatively, the air may enter through the flange 13, flow through the steps in the direction of  the falling workpieces and then out through a  branch disposed in the upper region 7a of the  shoot. If desired, wire netting may be provided  between the steps to prevent workpieces being entrained by the air. Instead of steps, a single  perforated plate may be used. As shown in Fig.  6, the shoot may be provided with a top outlet 26 for the air, baffles 25, and an inlet for the  material controlled by a rotary shutter 20.
Patent GB-1502289-A (GB)
Title: Web cartridge
IPC: G11B23/093
Filed: 1975-03-13
Abstract: 1502289 Web cartridge EASTMAN KODAK CO 13 March 1975 [15 March 1974] 10558/75 Heading B8M  A bifurcated lock 90 of a cartridge 10 is urged to a first position in which it engages adjacent flanges 46 and 48 of respective coaxial spools 34 and 36 of the cartridge 10 to prevent rotation thereof, and is retracted to a second position away from the spool to allow rotation thereof. Adjacent flanges 46 and 48 have a plurality of projections 132 and 136 respectively. The lock 90, which is urged by its resilient part 106 abutting a plate 108 in the cartridge, has two spaced ends 102 and 104. The gap between the ends 102, 104 is of such width that it nests between adjacent projections 132 and adjacent projections 136 or, alternatively, straddles on either side of a projection to prevent rotation of the spools. The lock 90 is retracted to the second position by means of a cam surface 118 of an actuating spindle 110 of the cartridge co-operating with a cam 119 of the lock 90 when the cartridge is inserted in a web-handling device 14. A cam surface 120 may be provided in symmetrical relationship, on the lock 90 so that either of the cam surfaces may be presented to the cam surface of the spindle 10. A spring motor (41), Fig. 1 (not shown), drives one of the spools in response to the rotation of the other spool. Film retainers (52), (54), Fig. 12 (not shown), are arranged to restrict the outer film convolutions from clockspringing outwardly. In an alternative embodiment, Figs. 7-8 (not shown), a Y-shaped spring (126) integral with an actuating pin (122) urges a lock (124) into engagement with the flanges, and inclined walls (129) and (130) of the pin (122) cammingly engage a slanted wall (128) of the lock (124) to compress the spring (126) to retract the lock (124) when the cartridge is inserted into the device. The bifurcated ends having cam surfaces 146 and 147 co-operate with shoulders 139, 139<SP>1</SP> of a straddled projection to slightly retract the lock 90 whereby the lock 90 is engaged between the projection. A light lock tongue 20 co-operates with the device 14, such as a camera, to shield unexposed film from extraneous light sources. The cartridge 10 consists of a body 22 and a cover 24 which are formed (e.g. by moulding) of an opaque material and are sealed together to provide a lighttight compartment. An opening 26 admits entry of a film engaging member (not shown), such as a camera claw, for presenting the film F to an exposure aperture in the camera. The film F is guided from one of the spools 36 by the bottom half of an idler roller 84 to a bottom half of a sprocket drive 56 and travels via openings 26 and 32, around the top half of the roller 84, around the top half of the sprocket drive 56 to the take-up spool 34.
Patent GB-628161-A (GB)
Title: Improvements in the manufacture of acetic acid
IPC: C07C51/353
Filed: 1947-04-21
Abstract: Acetic acid is obtained by heating methyl formate at e.g 300-400 DEG C., advantageously at 330 DEG  C., in the presence of the carbonyl forming metals: iron, cobalt or nickel and of a free halogen or a compound or mixture yielding one of these metals and a free halogen under the prevailing reaction conditions.  Nickel is the preferred metal.  Halogens specified are iodine which is preferred, chlorine and bromine.  Halogen compounds specified are nickel iodide hexa-hydrate, copper iodide, hydrogen iodide or organic halogen compounds such as alkyl iodides, e.g. methyl iodide.  The carbonyl-forming metals may be replaced in part by tungsten or metals of the fifth group of the periodic system, viz. vanadium, antimony and bismuth only a trace of nickel being required to promote these metals to a high degree of activity. When nickel iodide is employed as catalyst it is used in amounts from 1 to 15 per cent, advantageously 5 per cent, by weight of methyl formate taken and other catalysts are used in similar proportions.  The reaction is favoured by the use of pressure and pressures of from 30 to 400 atmos. are instanced.  Water may be present in the reaction mixture and favours the production of acetic acid rather than methyl acetate which is usually found in the products.  The presence of carbon monoxide in about equimolecular proportions to methyl formate is also advantageous and other substances which may be present initially are methanol, acetic acid, methyl acetate and inert hydrocarbons.  In examples equimolecular amounts of methyl formate and (1) water in the presence of nickel iodide, and (2) water and carbon monoxide in the presence of nickel carbonyl and iodine are treated at 335 DEG  C. and under a pressure of 300 atmos. to give acetic acid with some methane, carbon dioxide, formic acid and methyl acetate.  In the Provisional Specification it is stated that any carbonyl forming metal may be used and that high boiling organic acids are preferred as liquid reaction media, acids instanced being benzoic, stearic, palmitic, capric, caprylic, arachidic and adipic acid. Anthracene oil, diphenyl and fractions of saturated hydrocarbon oils are specified as inert hydrocarbons.  Specifications 283,989, [Class 2 (iii)], and 343,947 are referred to.
Patent GB-1470861-A (GB)
Title: Process of controlling foaming in continuous fermentations
IPC: C12P7/48
Filed: 1974-03-08
Abstract: 1470861 Citric acid PFIZER Ltd 7 March 1975 [8 March 1974] 10616/74 Heading C2C [Also in Division C6] In a continuous fermentation with a microorganism in a nutrient medium in which the main substrate has an antifoaming action, but in which no other antifoaming agent is added, the addition of the substrate to the fermentation broth is controlled by monitoring the amount of the foam and adding a sufficient amount of substrate to reduce the amount of foam when the foam exceeds a predetermined level. An example describes the microbiological production of citric acid by cultivation of Candida lipolytica ATCC 20228 on a C 14 -C 17  n-paraffin substrate. It is stated that the medium first begins to foam when the original hydrocarbon substrate therein has been exhausted. Further foaming occurs as each charge of substrate is used up. The requisite apparatus includes a foam probe 12 electrically connected to a control panel 13 which controls a pump or valve 14 in the substrate supply line 16. The amount of substrate added when the means is actuated may be limited by a timing device (not shown). The apparatus is fitted with an air line 3, and heater 6 and cooler 7 controlled by a temperature probe 8. Specification 1,369,295 is referred to.
Patent GB-1504253-A (GB)
Title: Conveyor bearing rollers and a method of making them
IPC: B65G39/02
Filed: 1976-03-17
Abstract: 1504253 Making a conveyer bearing roller R STAHL AUGFZUGE GmbH 17 March 1976 [22 March 1975] 10627/76 Heading B3A [Also in Division F2U] A method of producing a conveyer bearing roller 10 including a cylindrical portion and two bearing portions 13 each secured to the cylindrical portion by a hub 11, 12, comprises taking a cylindrical pipe, tapering the end portions of the pipe by non-cutting cold deformation down to the diameter of bearing portions 13 and inverting parts 11, 12 of the tapered end portions within the cylindrical portion of the pipe. An extension bearing portion 13a may be welded on to the end 7 of the tapered portion. One end portion 19 may be longer than the other and profiled to taken a chain wheel or gear-wheel 21. End portions 13 may provide the inner races for ball or roller bearings. The interior (40), Fig. 3 (not shown), of the roller may be filled with foam.
Patent GB-1215492-A (GB)
Title: A device for positioning rock or like drilling mechanisms
Inventor: LOKKA LEIF
IPC: E21B15/04
Filed: 1968-03-05
Abstract: 1,215,492. Rock drilling machines. L. LOKKA. 5 March, 1968 [6 March, 1967], No. 10745/68. Heading B3C. A device for positioning a rock or like drilling mechanism comprises a mobile frame 3, a base 7, 8 pivotably mounted on a horizontal shaft 4, a support plate 10 slidably mounted on the base and carrying a perpendicular shaft 11, a support 12-14 for an arm 15, 16, 18 and a jib 17 pivotally connected to the arm. The support member 12 is rotatable relative to shaft 11, and support members 13, 14 are pivotally connected. The arm comprises telescopic members 15, 16, the latter being rotatable relative to the former by a drive device 21, 22 which may be hydraulic and carrying an extension 18. The device may be adapted for supporting a plurality of rock or like drilling mechanisms (Fig. 1, not shown).
Patent GB-754750-A (GB)
Title: Improvements in or relating to microwave amplifiers and to microwave radio relay apparatus
IPC: H04B7/155
Filed: 1954-04-13
Abstract: 754,750. Radio signaling; tube amplifiers. TOKYO SHIBAURA ELECTRIC CO., Ltd. April 13, 1954 [April 13, 1953], No. 10805/54. Classes 40 (5) and 40 (6). In an ultra high-frequency reflex amplifier, the signals are passed more than once through a travelling-wave tube to increase the effective gain, the signals being transposed between successive passages through the tube. The invention is described as applied to a radio relay, Fig. 2, signals of frequency f from aerial A passing through a band-pass filter 1 to travelling-wave tube 2 and thence through a further filter 1a to a mixer 3 fed with local oscillations from generator 4. The output at frequency f2 is passed through filter 5a to the input of travelling-wave tube 2 and the output passes through filters f2 to transmitting aerial B. In a modification, Fig. 3 (not shown), the process is repeated at a third frequency. It is stated that the output of a travelling-wave tube is substantially constant for inputs exceeding a critical value so that the output of the amplifier remains constant with varying inputs over a wide range of values (Fig. 7, not shown).
Patent GB-1170619-A (GB)
Title: Catalytic Hydrogenation of Diaminodiphenyl Alkanes or Ethers
Filed: 1967-03-08
Abstract: 1,170,619. Hydrogenation of diaminodiphenyl alkanes or ethers. BADISCHE ANILIN- & SODA FABRIK A.G. 8 March, 1967 [9 March, 1966; 20 Aug., 1966; 30 Sept., 1966], No. 10810/67. Heading C2C. Diaminodiphenyl alkanes and ethers are hydrogenated to the corresponding diaminodicyclohexyl compounds by contacting with hydrogen in the presence of hydrogenation catalysts and inert solvents at elevated temperature and superatmospheric pressure in the absence of alkaline earth metal oxides, the inert solvents being cyclic ethers having one oxygen atom in the ring, cyclohexylamine or N-alkylated cyclohexylamines in concentrations of from 30 to 90% by weight based on the total of solvent and compound to be hydrogenated. Preferred diaminodiphenyl alkanes or ethers used as starting materials have the Formula I in which R<SP>1</SP> is an alkylene or alkylidine radical having 1-4 carbon atoms or an oxygen atom, R<SP>2</SP> and R<SP>3</SP> are hydrogen atoms or C 1 -C 4  alkyl radicals, and R 4  is a hydrogen atom, a C 1 -C 12  alkyl radical, a halogen atom or a C 1 -C 4  alkoxy radical. The preferred hydrogenation catalysts are those containing cobalt or nickel and, in particular, catalysts containing cobalt and manganese. In addition the catalysts may contain other metals e.g. copper, chromium, nickel, tungsten, molbydenum, platinum, palladium or ruthenium. Suitable cyclic ethers for use as solvents are, for example, tetrahydrofuran, tetrahydropyran, hexamethylene oxide, 2 - methyl - tetrahydropyran and 2,4 - dimethyltetrahydrofuran. Suitable cyclohexylamines for use as solvents are cyclohexylamine, N - methyl cyclohexylamine, N,N - diethylcyclohexylamine, N - methyl - N - butylcyclohexylamine and N-isopropyl cyclohexylamine.
Patent GB-1384995-A (GB)
Title: Protection circuit for capactitative voltage transformers
IPC: H02H7/05
Filed: 1973-03-06
Abstract: 1384995 Voltage transformers MICAFIL Ltd 6 March 1973 10841/73 Heading H2H A circuit comprising a capacitive voltage divider C 1 , C 2  has a part thereof C 2  shunted by the primary winding of a transformer T, the secondary winding of which is connectible by a controlled switching device S to a burden R 1 , the arrangement being such that the burden R 1  is normally out of circuit but in the event of a voltage collapse across the transformer primary winding is connected to the secondary winding by the switching device S in less than five milliseconds so as to suppress voltage transients. The switching device S may comprise a triac or a pair of opposed-parallel connected thyristors. The signals to operate the triac or thyristors are developed by devices included in the circuit, such as by means of an inductor connected in series with the capacitors C 1 , C 2  or a capacitor which is charged from a stabilized voltage source and which is then discharged by means of a transistor to produce a unidirectional pulsating voltage. Furthermore the capacitor may be charged during one half wave of a voltage cycle and subtracting therefrom the voltage value of the succeeding half cycle, a triggering signal being produced if the values of two successive half waves differ. Lastly the burden R 1  may be divided into parts, all of which are switched into circuit together but which are removed from circuit in a time-staggered sequence.
Patent GB-372908-A (GB)
Title: Improved method of treating bone material before deglueing
IPC: C09H1/02
Filed: 1931-04-13
Abstract: The invention of the parent Specification is modified by substituting for the mild alkaline treatment of the dried bone material a treatment with weak solutions of inorganic or organic acids or acid or neutral salts at ordinary temperatures under such conditions that the hydrogen ion concentration of the bath falls outside the range pH 4,7 to 5,0 corresponding to the isoelectric point for collagen. Examples of suitable solutions are N/10 phosphoric acid N/10 magnesium chloride and a solution containing 0,7 grammes citric acid per litre.
Patent GB-1351495-A (GB)
Title: Magnesium grignard agents
IPC: C07D215/14
Filed: 1971-04-22
Abstract: 1351495 Grignard-type reagents NATIONAL PATENT DEVELOPMENT CORP 22 April 1971 [12 May 1970] 10844/71 Headings C2C and C2J A Grignard reagent of general formula Mg(OR 1 ) 2 .ZRMgX in which R 1  is tetrahydrofurfuryl, dialkylaminoalkyl in which each alkyl group is C 1 -C 6 , or R 2 O(CH 2 ) m - where R 2  is C 1 -C 6  alkyl or C 2 -C 12  alkoxyalkyl, m is 2, 3 or 4, R is a hydrocarbyl or heterocyclic group having N, O or S as hetero atom (especially 2- pyridyl or 2-quinolyl), Z is a number from ¢ to 6 and X is Cl, Br or I is prepared by one of the following methods: (1) by reacting Mg(OR 1 ) 2 , Mg and RX, usually in a molar ratio of 1 : Z : Z, in a hydrocarbon solvent optionally together with a small amount of an ether; (2) Mg(OR 1 ) 2  + ZRMgX in ethers or ether/hydrocarbon mixtures; (3) in an ether and/or hydrocarbon; or (4) (Z + 1)Mg + 2R 1 OH + ZRX. The compounds, many of which are specified, are soluble in hydrocarbon solvents. Alcohols are prepared by reacting a carboxylic acid ester, anhydride, chloride, bromide or iodide or an aldehyde or ketone with a Grignard reagent of the above general formula and hydrolysing the reaction mixture. In the example, C 6 H 5 CH = CHC(CH 3 ) 2 OH is obtained by reacting ethyl cinnamate and Mg[O(CH 2 ) 4 OCH 3 ] 2 . 1¢CH 3 MgBr in tetrahydrofuran followed by hydrolysis with water.
Patent GB-1380722-A (GB)
Title: Fuel injection pumps
IPC: F02M59/46
Filed: 1971-04-23
Abstract: 1380722 Fuel injection pumps BRYCE BERGER Ltd 14 April 1972 [23 April 1971] 10919/71 Heading F1A In a fuel injection pump having a delivery valve 16 movable in the bore 14 of a flanged member 15 closing the end of the cylinder barrel 11, a circlip 19 is disposed in a groove in the wall of the bore 14 to prevent the fluted guide portion 17 of the valve entering the pumping chamber should it become detached from its head 18.
Patent GB-232988-A (GB)
Title: An improved warning device for indicating overheating
IPC: F16P7/00
Filed: 1925-04-27
Abstract: 232,988. Roussel et Cie. April 25, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Drawings to Specification. Thermometers.-A device for indicating overheating of machine parts &c. comprises a capsule containing a washer coated with material which fuses or runs at the required temperature and produces a visible change in colour, which persists when the temperature falls. The capsule may be placed in contact with the machine part &c., or may be supported in close proximity thereto.
Patent GB-768250-A (GB)
Title: 5-o-derivatives of 2-deoxy ribose
Inventor: KENNER JAMES
IPC: C07H15/18
Filed: 1954-04-14
Abstract: 2 - Deoxy - D - riboses having in at least the 5-O position alkyl or aralkyl radical substituents are obtained by subjecting a glucometasaccharinic acid or salt thereof, correspondingly having an alkyl or aralkyl radical substituent in either the 6-O position, or in the 6-O position and additionally in the 4-O position and/or 5-O position, to a Ruff degradation.  The glucometasaccharinic acid or its salt is obtained by reacting with an alkaline agent preferably under non-oxidizing conditions, glucose, mannose or fructose having an alkyl or aralkyl substituent in the 3-O position, or polysaccharides containing glucose or mannose residues connected by a 1 : 3 linkage, said compounds containing in addition to the 3-O substituent the desired substituent radical in at least the 6-O position.  The Ruff degradation may be effected with hydrogen peroxide in the presence of ferric ions, e.g. ferric sulphate. Examples describe the preparation of 5-O-benzyl-2-deoxy-D-ribose and 3,5-O-benzylidene-2-deoxy-D-ribose and their corresponding starting compounds, i.e. calcium 6-O-benzyl-glucometasaccharinates and the mixed calcium salts of 4,6-O-benzylidene-3-deoxy-D-mannonic and -gluconic acids respectively  The starting compound 6-O-benzyl-3-O-methyl-D-glucose is obtained by the acid hydrolysis of 6 - O - benzyl - 3 - O - methyl - 1,2 - isopropylidene glucose while 4,6-O-benzylidene-3-O-methyl-D-glucose is obtained by the condensation of benzaldehyde with 3-O-methyl-D-glucose.  The sodium derivative of 6-O-benzyl-3-O-methyl-1,2-isopropylidene glucose is prepared by the action of sodium benzylate on either 6-O-tosyl-3-O-methyl-1, 2-isopropylidene glucose or 5,6-anhydro-3-O-methyl-1,2-isopropylidene glucose.
Patent GB-1219392-A (GB)
Title: Vibratory conveyor
IPC: B65G27/30
Filed: 1969-02-28
Abstract: 1,219,392. Vibrating conveyers. KLOCKNER-HUMBOLDT-DEUTZ A.G. 28 Feb., 1969 [2 March, 1968], No. 10944/69. Heading B8A. Vibrating conveyer trough 1 is supported by means of girders 4 each secured to the bottom of the trough and mounted by means of rubber blocks 2 supported by elements 6 and 7 secured to the frame or countermass 3. The girder 4 may be provided with inclined sides 9 and 10.