baber/WOPTO huggingface dataset:
Patent GB-1418050-A (GB)
Title: Nuclear magnetism well logging method and apparatus
IPC: G01V3/32
Filed: 1973-06-19
Abstract: 1418050 NMR well logging CHEVRON RESEARCH CO 19 June 1973 [3 July 1972] 29132/73 Heading G1N In a nuclear magnetic resonance well logging system a current is passed through a polarizing coil 13, Fig. 1, of an NM R sonde in a direction opposite that used to take measurements. This current, which precedes the measuring operations, serves to a least partly demagnetize materials adjacent the sonde in the well bore thus removing the perturbing effects of such materials. The current is applied for a period around 30 ms immediately before the usual polarizing current is applied, and is typically of the same magnitude as the polarizing current. The latter aligns the protons which precess around the earths field on termination of the current. The precession is detected and recorded as an indication of the materials in the bore wall. Digital control and measurement: a digital logging system 20, Fig. 1 operates the switches necessary to pass the currents through coil 13 and to connect pick-up coils 14a, 14b to measuring circuits. It also measures the magnitude of the initial current circuits. It also measures the magnitude of the initial current and the depth to which the sonde is lowered. All these measurements are recorded in digital form on tape. The depth is measured by device 16 in Fig. 1; this is an optical or magnetic disc 60, Fig. 5, which produces a signal as it rotates. The signal is a changing ramp signal which is fed to a comparator 64 directly and via a delay unit. When the comparator inputs are equal, i.e. when the sonde has been lowered and the disc has stopped, the comparator enables gate 63 to pass the ramp measurement to storage unit 65 and thence to master copy logic unit 46 in Fig. 3. This logic unit passes the measurement to a tape recorder 48. The depth measurement causes timing logic 52 to operate polarization magnetization counter 25; this generates signals S 1 , S 2 , S 3  in sequence to close and open relays, Fig. 4 (not shown), so as to pass a current first one way then the other through the polarizing coil and finally to connect the pick-up coils of Fig. 1 to amplifier 41 in Fig. 3. During polarization a potential is developed across a potentiometer which is measured in Fig. 6 to indicate the current. The potential is fed to comparator 68 of Fig 6 where it is compared with a ramp waveform which is initiated by the timing logic of Fig. 3; counter 71 receives clock pulses until the ramp voltage equals the potentiometer voltage. The final count thus represents the current, and is supplied to the copy logic 46 of Fig. 3 for recording at the correct time as determined by control logic 50. Shortly after the polarizing current has ceased the pick-up coils are connected to amplifier 41 of Fig.3 by the above mentioned relays, and are passed to synchronous rectifier 42 to produce size and cosine signals. These are filtered at 43 and amplitude sampled at 44, the samples being converted to a digital form at 45 for eventual recording at 48 as two six bit bytes on the nine track tape.
Patent GB-1431797-A (GB)
Title: Brake linings
IPC: F16D69/02
Filed: 1973-06-19
Abstract: 1431797 Brake lining synthetic resin compositions K-R BEYRER 19 June 1973 [22 July 1972] 29144/73 Heading C3R [Also in Division F2] In a brake lining element for use in a disc brake including a body part adapted to frictionally engage the disc and a surface layer formed on the face of the body part against which an actuator bears when the body part is urged towards the disc, the surface layer is formed by a matrix comprising a thermosetting organic resin and a granular solid lubricant distributed in the matrix in an amount of from 1 to 30% wt., the grain size being from 1-5 mm. Suitable lubricants are graphite, metal sulphides such as tungsten- or molybdenumsulphide, and metals such as lead and antimony. The matrix may include fillers such as asbestos, metal oxides, barytes and/or powdered mica. In the particular example the surface layer is formed by rolling a compacted mixture of a granulated lubricant and the following composition:- 10% wt. of a thermosetting resin, such as a phenolic resin, 5% wt. rubber, 1% wt. of a vulcanization accelerator, 54% wt. asbestos and 10% wt. metal oxides, the balance being made up by fillers such as barite and powdered mica, the amount of lubricant being 1-30% wt. of the surface layer.
Patent GB-323781-A (GB)
Title: Process for the manufacture of water soluble products from lignite and similar fossil materials
IPC: C07G1/00
Filed: 1928-10-10
Abstract: 323,781. I. G. Farbenindustrie Akt.- Ges. Oct. 10, 1928. Addition to 284,670, [Class 2 (iii), Dyes &c.]. Tanning with special chemicals.-Water-soluble products which may be used as tanning agents are obtained by treating degradation products, soluble in weak acid, obtained from lignite, peat, and similar fossil materials, with chlorine until the medium becomes acid if not already so, and then further treating with chlorine with gradual addition of alkali so that the medium remains acid to litmus but only becomes strongly acid towards the end of the process, either by the action of chlorine or by addition of acid. In one example, lignite is chlorinated in aqueous suspension, and the insoluble residue is filtered off, washed, stirred with water, neutralized by caustic soda, and boiled with a solution of sodium sulphite and hydrate. The clear liquid is decanted and treated with chlorine as above described. A water-soluble reddish-brown powder is precipitated, and may be dissolved in 94 per cent alcohol and filtered, and the solution evaporated to obtain a dark brown powder. In another example chlorinated peat is treated.
Patent GB-953717-A (GB)
Title: Novel benzothiadiazine derivatives, processes for their preparation and pharmaceutical compositions thereof
IPC: C07D285/28
Filed: 1962-07-30
Abstract: The invention comprises 3-fluoren-(9)-yl-6 chloro-7-sulphamoyl-3, 4-dihydro-1, 2, 4-benzothiadiazine-1, 1-dioxide and 3-diphenylmethyl-6-chloro-7-sulphamoyl-3, 4-dihydro-1, 2, 4-benzothiadiazine-1, 1-dioxide and their preparation by reacting 2, 4-disulphamoyl-5-chloro-aniline with the appropriate aldehyde i.e. diphenyl acetaldehyde or 9-formyl-fluorene, in a solvent in the presence of an acid catalyst at an elevated temperature. Pharmaceutical preparations having diuretic and saluretic properties comprise the above compounds of the invention in association with a pharmaceutical vehicle. The preparations may suitably take the form of tablets, pills or capsules for oral administration or solutions or suspenstions for parenteral injection.  Specification 953,716 is referred to.
Patent GB-1506583-A (GB)
Title: Fluid pressure assisted control valve
IPC: F16K11/07
Filed: 1975-06-20
Abstract: 1506583 Valves MARTONAIR Ltd 20 June 1975 [2 July 1974] 29232/74 Heading F2V A valve comprises a housing 10 containing a piston-like valve member 11 movable between two extreme operating positions, the housing having an inlet port A, a pair of exhaust ports D, E, and a further pair of ports B, C communicating via lines 16, 17 with chambers 14, 15 at opposite ends of the valve member 11. Thus the latter is held in the extreme leftwards operating position shown by high pressure fluid from ports A acting in chamber 15 whilst chamber 14 is vented. However, when valve member 11 is moved initially rightwards by manual, electrical or fluid means, chamber 15 is vented whilst chamber 14 is pressurized so as to assist movement of member 11 to its rightwards extreme position.
Patent GB-499187-A (GB)
Title: Improvements in or relating to milling machines
IPC: B23C1/06
Filed: 1937-06-14
Abstract: 499,187. Milling-machines. KEARNEY & TRECKER CORPORATION. June 14, 1937, No. 29313/38. Convention date, June 20, 1936. Divided out of 499,137. [Class 83 (iii)] A milling-machine, particularly a machine as described in Specification 499,137 is provided with a knee 34 carrying horizontal feed operating shafts 231, 232, which move bodily therewith and are driven by mechanism mounted in the column 31, housing means including collapsable or telescoping parts which close a slot in the column through which the horizontal shafts project. The main driving shaft housed within the column drives a pair of vertical splined shafts 211, 212. A housing or bracket 233 connected with the knee carries bevel gearing whereby the shafts 211, 212 are connected to the horizontal knee shafts 231, 232 which operate the feed and rapid traverse movements of the table respectively. The bracket 233 extends past the corner of the column 31 and is engaged at its outer side by a corner post 240 which with the column forms a slot 241 for guiding the bracket. The post is of hollow construction and encloses a coolant pipe 242 supplied from a pump 243 driven from the shaft 211. The slot 241 is sealed by telescoping guard plates including a plate 245 secured to the lower part of the bracket and provided with rivet heads 246 engaging grooves in a second plate 248 having a head 250 guided in a third plate 249 secured to the column. The part of the slot lying above the bracket 233 is similarly protected by three telescoping plates 254 ... 256.
Patent GB-1391944-A (GB)
Title: Laminated article
IPC: G09F3/02
Filed: 1972-06-22
Abstract: 1391944 Laminates ZELLWEGER USTER Ltd 22 June 1972 [1 July 1971] 29328/72 Heading B5N A laminated article suitable for dielectric printing to form a label comprises a paper layer 12 having a dielectric coating, an electrically conductive carrier layer 16 and an adhesive layer 14 bonding the paper layer to the carrier layer. The dielectric coating may be formed by applying to the paper a solution of a plurality of unsaturated monomers and a catalyst, many suitable monomer mixtures being specified. The carrier layer may be a metallic strip, e.g. of aluminium, copper or tin foil, alternatively it may comprise metallized paper.
Patent GB-826219-A (GB)
Title: Stabilization of aqueous colloidal solutions of silica
IPC: C01B33/148
Filed: 1957-09-18
Abstract: Colloidal solutions of silica in an aqueous medium are stabilized by adding to the colloidal silica solution at least 1.5% by weight of ammonia based on the weight of silica and maintaining the ammonia in contact with the colloidal solution for 1 to 16 hours and thereafter removing the ammonia from the colloidal solution, preferably by distilling or by passing over a bed of cation exchange resin in the acid cycle.  Preferably 3 to 6% by weight of ammonia based on the weight of silica is added to the colloidal silica solution.ALSO:Colloidal solutions of silica in an aqueous medium, useful in the clarification of water and sewage effluents, are stabilized by adding to the colloidal silica solution at least 1,5% by weight of ammonia based on the weight of silica and maintaining the ammonia based on the weight of silica and maintaining the ammonia in contact with the colloidal solution for 1 to 16 hours and thereafter removing the ammonia from the colloidal solution, preferably by distilling or by passing over a bed of cation exchange resin in the acid cycle.  Preferably 3 to 6% by weight of ammonia based on the weight of silica is added to the colloidal silica solution.
Patent GB-342745-A (GB)
Title: Improvements in or relating to means for measuring feet and lasts
IPC: A43D1/02
Filed: 1929-09-28
Abstract: 342,745. Anthropometrical appliances. ROBERTS, F.W., Northcroft, Blaby, Leicestershire. Sept. 28, 1929, Nos. 29424/29 and 11667/30. [Class 81 (ii).] Apparatus for reproducing and measuring the areas and contours of sections of solid objects such as the human foot comprises a tracer member so mounted on a carrier that relative movement between the object and the tracer member may take place about a centre substantially coincident with the centre of the particular section to be measured and reproduced. The wheel 19 shown in Fig. 1 is used for measuring perimeters and is removed and a point 14, Fig. 4, is substituted for it when a sectional area is to be measured and reproduced. An adjustable knee rest 3 and a heel pad 25 are provided together with an adjustable toe support 6. The tracing point 14 is secured to an arm 13 mounted on an upright 8 rotatably arranged in a frame 5 which can be turned about a bearing 7. The arm 13 can slide but not rotate on the upright 8, which may be graduated. An arm 10 is hinged at 9 to the upright 8 and carries at its end a pen 11 which bears on graph paper secured to a fixed table 12 provided with datum lines 40. A planimeter wheel 31 is mounted between two brackets 30 secured to the arm 10. The pen 11 is situated vertically below the tracing point 14, so that as the frame 5 is rotated about its bearing 7, the point 14 being kept in contact with the foot by a spring (not shown) the pen reproduces and the planimeter measures the area of the desired section. The arm 10 may be raised about its hinge 9 and maintained, by means not shown, in its raised position. When a perimeter is being measured by the disc 19, the planimeter and recording pen are ineffective.
Patent GB-298616-A (GB)
Title: Improvements in or relating to processes of coating and articles produced thereby
IPC: B05D7/26
Filed: 1928-10-12
Abstract: 298,616. British Celanese, Ltd., (Assignees of Moss, W. H.). Oct. 12, 1927, [Convention date]. Coating-processes.-Surfaces such as those of iron, glass. hardwood, &c. are coated with a composition containing a phenolic synthetic resin which will adhere to the surface, and then with one or more coats of a composition containing an organic derivative of cellulose such as cellulose formate, acetate, propionate, butyrate, or other organic ester of cellulose. The coatings may comprise pigments or plasticizers. The top coat comprises an organic derivative of cellulose preferably as substantially the whole of the lacquer base. The under coat may also contain an organic derivative of cellulose. Suitable synthetic resins for the undercoat may be made by condensing phenols, and aldehydes; ketonee, phenols and aldehydes; ketone-phenol resins and a ketone; phenols and ketones; or the last twomentioned products and formaldehyde. Dark resins or light resins containing dark dyes or pigments may also be used. In an example (1) a metal surface coated or not with a primer containing linseed oil, turpentine, resin, and pigment has applied thereon an undercoating comprising acetone and tetraoblorethane and (a) acetonephenol-formaldehyde resin or (b) acetone-phenolformaldehyde resin and diethyl phthalate or (c) acetone-phenol-formaldehyde resin, cellulose acetate, and diethyl phthalate. When dry a top coat comprising cellulose acetate, diethyl phthalate, acetone, alcohol, benzene, and tetrachlorethane is applied. Another example is given. Plasticisers such as triacetin, tricresyl phosphate, triphenyl phosphate, and high boiling solvents such as ethyl lactate, diacetone alcohol, benzyl alcohol, &c. may be used in the compositions. Specifications 296,671, 299,056, 299,067, 299,781, and 303,169 are referred to. The Specification as open to inspection under Sect. 91 (3) (a.) comprises also the use as undercoatings of composition containing methyl, ethyl, or benzyl cellulose mixed with plasticizers and solvents, such as are described in Specifications 164,384, 164,385. 164,386, and 205,195. This subject-matter does not appear in the Specification as accepted.
Patent GB-445621-A (GB)
Title: Improvements in or relating to grinding or abrading machines
IPC: B24B47/18
Filed: 1934-10-17
Abstract: 445,621. Grinding. LUKE & SPENCER, Ltd., and CRITCHLEY, H., Broadheath, Altrincham, Cheshire. Oct. 17, 1934, No. 29658. [Class 60] In a grinding-machine having a variablespeed gear and a movable wheel guard with interlocked movements, the mechanisms for operating the speed gear and for moving the guard are controlled by a single operating member, whereby the wheel cannot be run at a greater speed than that suited to its diameter. The machine comprises a base a having therein an electric motor b driving, through a variable speed gear box e, a spindle c having on each end a grinding-wheel d. Each wheel d is partially surrounded by a guard i carried by a slide movable transversely of the spindle c, and carrying a work-rest k provided with an adjustable upper plate. The slides are moved by screws l driven, through bevel gearing l<1>, m<1> and spiral gearing n<2>, by a hand wheel n on a spindle n<1>, the spindle also carrying a gear n<3>, which, through a train of gears, operates the shaft h to change the gear in the box e ; as the guards are advanced as the wheels wear, the speed of rotation of the wheels is simultaneously raised to maintain the peripheral speed approximately constant. The guards may be pivoted instead of being slidable, separate work-rests being provided.
Patent GB-449067-A (GB)
Title: Improvements relating to the curing of raw hides
IPC: B60T15/30
Filed: 1935-10-29
Abstract: Raw hides are cured by applying to the inner surface thereof an absorbent unsized paper or paper substitute which has been charged with sodium chloride or other preservative salt by saturating with a solution of the salt and drying out the solvent, or by adding the solution to the pulp before the absorbent web of paper is laid on the paper machine.  A disinfectant may also be added.  The paper may have added to it three times its weight of the salt. The paper may be impregnated by immersing in or passing slowly through a bath containing the salt in highly concentrated solution and is then dried, preferably by passing between heated rolls.  In use, several hides may be piled on top of each other with interposed layers of the paper, or each hide may be folded with the paper attached.
Patent GB-871973-A (GB)
Title: Programmer
IPC: H01H43/00
Filed: 1958-09-18
Abstract: 871,973. Electromagnetic interrupters. MASON ELECTRIC CORPORATION. Sept. 18, 1958 [Feb. 3, 1958], No. 29876/58. Class 38 (5). A unidirectionally-driven rotary switch is driven by a rotary solenoid 20, Fig. 1, of known construction having an energizable stationary coil 24 which advances an armature 22. The coil is energized both through an interrupter switch 26 having a movable contact 32 oscillating between open and closed positions, and a control switch having a movable contact 38 engaging with circumferentially-spaced contacts 40 seriatim. The interrupter switch 26 is mechanically coupled to the armature 22 by a coupling 46 having a resilient lost-motion connection 48. The control-switch 28, and other switches 30 coupled thereto are coupled to the solenoid 20 by a unidirectional coupling-means 50, 52 having a lost-motion connection 54, 56. The coupling- means 50, 52 engage with arms 96, 98 of a yoke 94 extending into openings 190 in a plate 192 having notches (not shown) for tabs 196 on a ratchet disc 198. The notches and openings are spaced at 90 degrees. Disc 198 is biased into engagement by means of a leafspring 202 with a complementary disc 200 fixed to a shaft 126. When the solenoid is energized discs 198, 200 and shaft 126 rotate together but on the return stroke produced by return-springs 100, 136, disc 198 slips relatively to disc 200 so that shaft 126 remains stationary. By means of a free outlet hunting circuit (Fig. 12, not shown), the switch may be driven round to any selected position. The switches 28, 30 are generally of known construction having movable roller contacts 38, 42 which drop when stationary into recesses 154, Fig. 10, having trailing sides 156 which lift the roller so that the rollers do not drop into the next recess and make contact while the switches are hunting. A gap 180 is provided in insulating segments between the stationary contacts to obviate metal tracking. Specifications 837,432, 837,433, 837,434, 871,974 and 871,975 are referred to.
Patent GB-762336-A (GB)
Title: Improvements in and relating to tractors
IPC: B62D49/06
Filed: 1954-10-18
Abstract: 762,336. Tractors. PORSCHE, F. Oct. 18, 1954 [Dec. 28, 1953], No. 29957/54. Classes 79(1) and 79(3). [Also in Group XXVII] In a tractor, in order that a cowling 10 placed about the internal combustion engine may be as narrow as possible, the auxiliary units, such as a lift pump, injection pump and generator, are located at the front and rear of the engine so as not to project transversely beyond the outline of the engine, and an exhaust assisted cooling system is arranged at the rear of the engine. The cooling system comprises a metal casing 13 formed around the rear and sides of the engine to draw air from the engine cylinder into a throat 17 into which projects the engine exhaust pipe 15. The arrangement acts as a diffusion pump in which the gases are fed into a baffle box lined with sound absorbing material 20 and are reversed into the hollow cylindrical portion 5 of the tractor frame from which they escape into the atmosphere through apertures 22.
Patent GB-394551-A (GB)
Title: Improved magnesium base alloys
IPC: C22C23/00
Filed: 1932-10-26
Abstract: Magnesium base alloys contain 0,5-12 per cent of cadmium and 0,5-12 per cent of tin.
Patent GB-337548-A (GB)
Title: Improvements in telephone systems
IPC: H04Q5/20
Filed: 1929-10-03
Abstract: 337,548. Del Gaizo, P., and Gianolio, G. Oct. 4, 1928, [Convention date]. Automatic exchange systems and selectors.- Any one of a number of substations associated with a single exchange line is connected to the line by a switch acting as a call finder for outgoing calls and as a numerical switch for incoming calls. Potential for the switch magnet and certain local relays may be supplied by rectified A.C. or from a local battery. Construction of switch, Fig. 3. A rotatable shaft a carries cams c1 - c3, one for each substation, adapted selectively to operate sets of springs cd1 - - cd3 to connect a sub-station to the exchange line. Two sets of springs are required for each sub-station as will appear from the subsequent description of the circuits, but only one set is shown in Fig. 3. The shaft is stepped around by a magnet D and ratchet wheel rd. Outgoing calls. When the receiver at substation 1, Fig. 1, is removed, relay A(i) is operated in a circuit including magnet D and rectifier R, the magnet remaining inert. Relay N pulls up over a1, s1, and short-circuits A which opens the circuit of N, but as this relay is slowto-release,' magnet D receives an impulse over s1, a1, n1. The switch takes one step, whereupon A re-operates over off-normal springs cdll, relay N having, in the meantime, relapsed. Relays A, N interact to send impulses to D, and when springs cda, cdb of the calling line are operated, relay S pulls up over n3, a wire and battery at the exchange to stop the switch, and N re-operates to complete the loop over off-normal spring cdl2. Exchange line busy. Hum from the rectifier R is heard over condenser 16 when a party removes his receiver. Incoming call. When the line is seized by a connector, battery connected to the b wire operates A(ii) and V, which opens the local circuit for A(i) to prevent an outgoing call from being effective. Incoming impulses are repeated at al to magnet D, off-normal spring cdl2 being shunted at v3. The switch closes the springs cda, cdb of the wanted line which is rung over a wire, and when the called party responds S pulls up, and releases V, A, while N operates to complete the speaking connection. Release. When the receiver is replaced, S falls back and relays A, N co-operate to send impulses to D which steps the switch to normal where the circuit of A is opened at cdll. If on an incoming call, the calling party replaces his receiver before the wanted party responds, A and V fall back and complete the stepping circuit of D. Modification, Fig. 2, using local battery; battery charging. Busy tone is in this case sent out by a vibrating relay SU connected in circuit over off-normal spring cd14. The battery B is charged over off-normal spring cd13, resistance W (if necessary), a wire, exchange battery.