baber/WOPTO huggingface dataset:
Patent GB-805402-A (GB)
Title: Trailer with two pairs of wheels
IPC: B62D13/02
Filed: 1956-06-06
Abstract: 805,402. Trailer vehicles. BUNGER, B. June 6, 1956 '[June 9, 1955], No. 17436/56. Class 108(1) The forward end of a trailer is supported by a spherical ended king-pin 18 engaging a socket 20 carried by the side members 14 of the forecarriage which has a wheeled axle rearwardly of the king-pin axis. A skirt 22 surrounding the king-pin 18 engages an anular member 22a to limit the angular movement of the forecarriage about the king-pin and a transverse leaf spring 23 secured to the trailer body has its ends engaging the turntable 13 carried by the forecarriage to give stability during turning. The chain 28 maintains the forecarriage horizontal when the trailer is uncoupled from the tractor.
Patent GB-640018-A (GB)
Title: Improvements in method of and apparatus for the manufacture of roofing tiles and thelike
IPC: B28B3/12
Filed: 1947-07-02
Abstract: 640,018. Moulding roof tiles &c. by compression of material in a procession of moulds. ATLAS PRODUCTS (N.Z.), Ltd. July 2,1947, No. 17467. Convention date, July 3, 1946. [Class 87 (ii)] A machine for making roof tiles, slabs, &c. from cementitious or like plastic materials, wherein the material, carried by travelling mould plates, is acted upon by a compression roller which is moved alternately rearwardly and upwardly, and forwardly and downwardly, relatively to the line of travel of the mould plates from and to a point of maximum compression, has a plate or blade extending transversely in front of the compression roller, this blade being moved substantially in an elliptical path to prevent heaping up of the material in front of the compression roller. The compression roll 3, Fig. 2, is mounted in arms L pivoted at P and actuated by cam mechanism C, the blade 2 being carried by a holder which is driven by eccentric pins 6 and is adjustably linked to a fixed point 15. The driving shaft carrying the pins 6 is mounted in an adjustable head 8 under the control of a screw gear hand wheel 13a, and may be driven from the camshaft 11 by a chain 9. The material in front of the blade is kept agitated by a horizontal rod 21 mounted on the blade. Australian Specification 105,651 is referred to.
Patent GB-787168-A (GB)
Title: N-trichloromethylthio derivatives
IPC: C07D207/48
Filed: 1956-06-06
Abstract: N-Trichloromethylthio imides and amides are prepared by reacting an imide or amide and perchlormethylmercaptan in presence of an inert organic solvent and a tertiary amine.  The solvent is preferably one which volatilises or boils below 100 DEG  C. and may be a ketone, an aromatic or aliphatic hydrocarbon, diethyl ether or a chlorinated hydrocarbon such as tetrachlorethane, carbon tetrachloride or, preferably, chloroform.  The tertiary amine, which is removed from the reaction mixture as its hydrochloride by washing, advantageously water washing, is preferably trimethylamine or triethylamine, other suitable amines being dimethylaniline and pyridine, the amine preferably being present in slight excess.  Examples of amides are those of the formula RXNHR1, in which R is an organic radical, X is -SO2- or -CO- and R1 is an organic radical or a hydrogen atom, e.g. N-butyl benzene sulphonamide.  Imides which may be used include (1) those of the formula <FORM:0787168/IV (b)/1> wherein R is an aliphatic, aromatic, alicyclic or heterocyclic organic radical which may be substituted and the X's, which may be the same or different, are -SO2- or -CO-, e.g. imides of dicarboxylic acids and saccharin; (2) ring compounds similar to the above but containing only one acyl group in the ring, which ring may include other non-carbon atoms such as oxygen, sulphur or further nitrogen atoms; (3) ring compounds as under (1) in which the X's are not attached to carbon or hydrogen atoms, e.g. oxazolidine diones such as 5:5-dimethyl - oxazolidine - 2:4 - dione, hydantoins such as 1-acetyl-5:5-dimethyl-hydantoin, and thiazolidine diones such as 2:4-dioxothiazolidine; and (4) derivatives of compounds of the formula <FORM:0787168/IV (b)/2> wherein X is oxygen, sulphurs, or CHY, and the Y's are hydrogen or substituents such as alkyl groups or halogen atoms, e.g. morpholine. Examples describe the preparation of N-trichloromethylthio tetrahydrophthalimide from perchlormethylmercaptan and tetrahydrophthalimide in chloroform in presence of triethylamine, and of the N-trichloromethylthio derivatives of methyl succinimide, 3-methyl hexahydrophthalimide and 5-methyl-2:4-thiazolidinedione by similar methods. Specifications 666,636 and 716,553 are referred to.
Patent GB-668406-A (GB)
Title: Improvements in accelerometers responsive to mechanical movements
Inventor: KING ARTHUR JOHN
IPC: G01P15/09
Filed: 1949-07-01
Abstract: 668,406. Electric indicating systems. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. May 11, 1950. [July 1, 1949] No. 17483/49. Class 40 (i). An accelerometer comprises a pile of piezoelectric plates compressed between a base member attached to the body whose acceleration is to be measured and an inertia mass, which is spring-pressed on to the pile so that relative movement between the base and the mass occasioned by the acceleration varies the pressure on the pile to produce an electrical output dependent on the acceleration. In Fig. 1 a cup-shaped casing 1 contains an inertia mass 2 slidably pressed on a pile 3 of piezoelectric plates by a transverse spring 4 clamped by a cap, 5 secured to the casing which may be attached to a body or a probe by the threaded hole 10. The plates are connected electrically in parallel through leads 12, 13 and coaxial cable to a cathode follower amplifier, the output of which varies with the pressure of the inertia mass on the piezoelectric pile and therefore with the acceleration, of the body. In a modification, Fig. 2 (not shown), a clearance between the inertia mass and the casing is occupied by a rubber tube clamped to the mass by a concentric split metal tube held in position within the casing by a locking ring which also retains the compression spring. In Fig. 3 the inertia mass 2 slides within a casing 1 which is increased in its internal diameter surrounding the pile 3<SP>1</SP> to leave a thin wall 9 whose axial stiffness is of the order of that of the pile, and less than that of the spring 4<SP>1</SP>. The upper part of the casing, the cap, and the mass form a combined effective inertia mass. A clearance of <SP>1</SP>/ 16  inch may be left between the mass and the casing, and filled with e.g. silicone oil for lubrication and damping.
Patent GB-238526-A (GB)
Title: Improvements in turbine locomotives with an ahead and a back turbine
IPC: B61C9/30
Filed: 1925-07-08
Abstract: 238,526. Krupp Akt.-Ges., F. Aug. 16, 1924, [Convention date]. Railway locomotives, steam turbine. - The ahead turbine A and the reversing turbines B are mounted on separate shafts a<1>, b<1> connected by disconnectible couplings a<2>, b<2> to pinions a<3>, b<3> both gearing with a wheel c<1> on a shaft C geared to a lay-shaft F coupled to the driving wheels. The couplings a<2>, b<2> permit each turbine to be independently removed, and may be ordinary flange couplings as shown, or the reversing turbine may be coupled to its pinion by a clutch disconnectible during working so that this turbine is idle during forward running. In a modification the shaft-extension of the forward turbine is connected only at its free end to the pinion a<3> so that the shaft can yield or twist during running.
Patent GB-314062-A (GB)
Title: Improved method and apparatus for measuring the flow of gas
IPC: G01F15/04
Filed: 1929-06-07
Abstract: 314,062. Clompagnie pour la Fabrication des Compteurs et Materiel d'Usines Ó Gaz. June 22, 1928, [Convention date]. Gas meters. - A gas meter A of the Roots blower type operates the counter T through differential gearing D by means of which a correction is applied to compensate for the passage of unmeasured gas. In one form of the apparatus the correction is applied by driving one wheel of the differential gearing from a small wet or dry meter B the inlet of which is connected by a pipe t in the inlet to the meter A in front of a reducing valve E and the outlet of which is connected to the outlet of the meter A through a pipe t<1> fitted with a differential regulator c and a regulating valve V. The differential regulator c contains a valve operated by a small counter-balanced bell f dipping in liquid and subject on its lower side to the pressure in the pipe t<1> in front of the valve V and on its upper side to the pressure in the inlet pipe to the meter A beyond the valve E. In another form of apparatus the gas leakage is assumed to take place at a constant rate and the difference in pressure at the inlet and outlet sides of the meter A when the meter is supplying gas actuates a switch to cause a synchronous electric motor or clockwork mechanism to drive the correcting wheel of the differential gearing.
Patent GB-586461-A (GB)
Title: Improvements in or relating to lubricating oil compositions
IPC: C10M129/54
Filed: 1944-09-14
Abstract: The lubricating oil composition of the parent Specification comprising a mineral lubricating oil with a small proportion of a polyvalent metal salt of a substituted or non-substituted aromatic monocarboxylic acid and particularly exemplifying the Ca and Zn salts of di-isopropyl salicylic acid is modified in that the additive comprises certain polyvalent metal and lithium salts of an octadecyl salicylic acid, stearyl salicylic acid or of a mixture of alkylated salicylic acids in which the alkyl groups contain 8 to 18 carbon atoms.  The polyvalent metals comprise Al, Be, Ba, Ca, Mg, Co, Ni, Zn, Sr, and Sn.  Full details are given of the preparation of the compounds from which the salts are derived (see Group IV), the usual standard methods being employed.ALSO:Octadecyl salicylic acid, stearyl salicylic acid, or a mixture of alkylated salicylic acids in which the alkyl groups contain 8 to 18 carbon atoms are prepared as follows: (1) salicylic acid is reacted with the appropriate olefine or primary, secondary or tertiary alcohol in the presence of a condensing agent such as sulphuric acid, BF3 or ZnCl2 at a sufficiently high temperature.  The corresponding phenol may be used and alkylated by this method followed by carboxylation.  (2) The alkylated phenol is carboxylated by the Kolbe method by passing CO2 through a boiling xylene solution of the sodium salt of the alkylated phenol.  (3) Nuclear acylated salicylic acid, such as stearoyl salicylic acid, are reduced by the Clemmensen method, i.e. by means of zinc wool and HCl in the presence of a proportion of anisole to liquefy the stearoyl compound.  (4) Salicylic acid is reacted with stearyl chloride dissolved in nitrobenzene in the presence of AlCl3. Laboratory details are included in all the above preparations.  The preparation of metal salts of the above compounds, mainly polyvalent metals and lithium, is also described, particularly barium octadecyl salicylate, beryllium stearyl salicylate and mixed calcium salts of C8-C9 alkyl salicylic acid.
Patent GB-684658-A (GB)
Title: Improvements in frequency-modulation receivers with silent tuning
IPC: H03G3/28
Filed: 1951-07-25
Abstract: 684,658. Radio-receiving circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 25, 1951 [July 28, 1950], No. 17618/51. Class 40 (v). In a frequency-modulation receiver provided with silent tuning, the muting voltage is derived from a rectifier coupled to a high-Q circuit which is bottom-capacity coupled to one of the tuned circuits of the discriminator. As shown, the frequency demodulator comprises a valve 1 of nonode type, in which two successive grids are coupled respectively to the primary and secondary of a pair of coupled tuned circuits 3, 5, both of which are tuned to the signal carrier frequency. In order to mute the receiver, a negative potential is applied to the inner grid 7 of the valve 1, being derived from a source 8. The muting is removed upon accurate tuning by means of a rectifier 9 coupled to a high-Q circuit tuned to the carrier frequency and comprising inductance 15 and capacity 16, being coupled to the circuit 3 by means of a common capacity 12 of large value. The smoothed output from the rectifier 9 is used to bias back a tuning-indicator tube 18; the resulting rise in anode potential is communicated to the grid 7 of valve 1 via a resistance 20 and counteracts the muting bias. In order that unmuting shall not occur, with an exceptionally strong signal, before the proper tuning point is reached, delayed automatic gain control is applied to the preceding I.F. stage 2 by means of a rectifier 24 coupled to the tuned circuit 3. Specifications 611,335 and 684,659 are referred to.
Patent GB-129707-A (GB)
Title: Improvements in Submarine Signalling Apparatus.
Inventor: BOOKWALTER CHARLES SUMNER
IPC: B63G8/38
Filed: 1917-11-30
Abstract: 129,707. Bookwalter, C. S., and Daubin, F. A. Nov. 30, 1917. Electric lamp and flash signals.-Relates to signalling-apparatus for submarines which may be used when the submarine is submerged. A tube E projecting above the submarine is provided with a lamp chamber 1 at its lower end, and at the upper end with a head 20 fitted with a mirror 22 and a glass window 23. The tube may be rotated by the gearing e, e<1>. The lamp chamber is hinged at 11 and is fitted with a lamp 2 and a parabolic or other mirror 5. Suitable lenses 15, 16 may be fitted in the tube. The lamp is connected through a junction box 31 to a suitable source of current and to a key switch fitted in the box 33, by which Morse or other code signals can be sent.
Patent GB-402505-A (GB)
Title: Improvements in the manufacture and production of anthraquinone derivatives
IPC: C09B1/54
Filed: 1932-06-23
Abstract: Anthraquinone derivatives which are suitable for dyeing acetate artificial silk are obtained by treating 1 - amino - 2 - alkoxy - 4 - halogen-anthraquinones in the presence of boric acid with concentrated or fuming sulphuric acid to replace the halogen atom by hydroxyl without any substantial sulphonation.  In examples 1 - amino - 2 - methoxy - 4 - chloranthraquinone is treated with a mixture of boric acid and concentrated sulphuric acid or oleum or 1 - amino - 2 - methoxy - 4 - bromanthraquinone with a mixture of boric acid and concentrated sulphuric acid to obtain a dyestuff dyeing acetate silk fast yellowish rose shades.  1 - Amino - 2 - methoxy - 4 - chloranthraquinone is obtained by chlorinating 1-amino-2-methoxy-anthraquinone in nitro benzene with sulphuryl chloride.  1 - Amino - 2 - methoxy - 4 - bromanthraquinone is obtained by brominating 1-amino-2-methoxy-anthraquinone in nitro benzene.
Patent GB-1108174-A (GB)
Title: Bipyridylium compounds and herbicidal compositions containing the same
Inventor: DOWNES JOHN EDWARD
IPC: C07D213/89
Filed: 1964-04-29
Abstract: The invention comprises compounds of the general formula <FORM:1108174/C2/1> wherein R is an unsubstituted amino group or a formamido group, R1 is an unsubstituted amino group, a formamido group, a substituted or unsubstituted alkyl group, or a hydrogen atom, and X is an anion of valency n.  Compounds having 1 or 2 amino groups may be prepared by reacting 4,41-bipyridyl with a salt of hydroxylamine-o-sulphonic acid; the compounds containing, respectively, 1 and 2 amino groups may be separated from the product by conversion to their iodides followed by fractional precipitation. Compounds in which R and/or R1 is a formamido group may be obtained by reacting the corresponding amino compound with formic acid.  When this process is applied to a halide salt of the amino compound, compounds of the type <FORM:1108174/C2/2> in which R and/or R1 is -<\>bN-CHO are obtained in addition by loss of hydrogen halide from the corresponding formamido compound. Compounds in which R is amino and R1 is an unsubstituted or substituted alkyl radical are obtained by reacting the corresponding compound in which R is amino and R1 is H with a conventional quaternizing agent.ALSO:Herbicidal compositions comprise (a) a mixture of a compound of the formula <FORM:1108174/A5-A6/1> wherein R is -NH2 or formamido, R1 is -NH2, formamido, hydrogen, or an unsubstituted or substituted alkyl group, and X is an anion of valency n, and a surface-active agent and/or a solid diluent; or (b) a nitrogen betaine derived from a compound of the above general formula, the term "nitrogen betaine" denoting a compound which is represented in at least one of its cononical formulae as containing the group <FORM:1108174/A5-A6/2> The compositions may be solid or liquid, and in latter case may be in the form of aqueous solutions or concentrates.  Other ingredients which may be present are corrosion inhibitors and other herbicidal substances, e.g. substituted ureas, triazines and phenoxyacetic acids.
Patent GB-184953-A (GB)
Title: A new or improved floor covering material
IPC: D06N1/00
Filed: 1921-06-30
Abstract: 184,953. Leech, C. R. June 30, 1921. Paper, treating with special materials. - The process of making a floor covering by saturating paper felt with a mixture of pitch, flux oil, and bitumen, described in Specification 164,092, [Class 140, Waterproof &c. fabrics], is modified by the omission of the pitch and flux oil. Soft asphalt may be used instead of bitumen.
Patent GB-442714-A (GB)
Title: Arrangements for reducing ground noise in electro-optical sound reproducing systems
IPC: G11B23/50
Filed: 1935-06-21
Abstract: 442,714. Discharging electricity from fabrics &c. KLANGFILM GES., 19, Saarlandstrasse, Berlin. June 21, 1935, No. 17826. Convention date, June 27, 1934. Drawings to Specification. [Class 35] [See also Groups XXXVIII and X] Static electric charge on a sound-film is neutralized by ionizing the air surrounding the film in the apparatus through which it passes, by means of a quartz lamp. The attraction of dust to the film is thereby prevented.
Patent GB-626027-A (GB)
Title: Improvements in or relating to the preparation of tertiary organic base salts of penicillin
IPC: C07D499/00
Filed: 1947-07-07
Abstract: Salts of penicillin are manufactured by treating a solution of penicillin in a suitable organic solvent or mixture of solvents with a salt or salts of a suitable tertiary organic base or bases and a suitable organic acid or acids.  Suitable organic solvents or solvent mixtures are those into which penicillin can be extracted readily from acidified aqueous solution, which are relatively inert to penicillin and in which the tertiary base salts of penicillin are relatively insoluble, e.g. amyl acetate (preferred), diethyl ether, methyl isobutyl ketone or butyl acetate.  They are preferably used in conjunction with one or more suitable secondary solvents, i.e. organic solvents in which the tertiary base salts of penicillin are relatively insoluble but those of the impurities relatively soluble, e.g. ethanol (preferably as a 2-10 per cent addition to amyl acetate), butanol or acetone.  Suitable tertiary organic bases are those of the general formula NR1R2R3, where R1, R2 and R3 are alkyl or alkenyl groups of not more than 4 carbon atoms, or R1 and R2 are part of a heterocyclic ring which, together with any alkyl substituents, contains not more than 8 carbon atoms, e.g. triethylamine, N-ethylpiperidine or N-ethylhexahydropicoline. Suitable organic acids are aliphatic or substituted aliphatic acids having not more than 8 carbon atoms in the straight chain (e.g. formic, acetic, propionic, butyric, isobutyric, cuprylic or cuproic acid), or benzoic acid.  The tertiary base salts of penicillin may be converted into metal (e.g. sodium or calcium) salts, e.g. by the process described in Specification 604,563.  Examples illustrate the use of certain of the materials specified above.
Patent GB-589811-A (GB)
Title: Means for measuring the temperature of a fluid passing through a conduit
IPC: G01K13/02
Filed: 1944-09-19
Abstract: 589,811. Thermometers. BILLMAN, S. K. M. Sept. 19, 1944, No. 17897. Convention date, Oct. 19, 1943. [Class 97 (iii)] In order to measure the temperature of a fluid passing through a conduit, an electrical annular measuring means having the same internal diameter as the conduit is employed. As shown, a body 2 having a flange 1 for securing the body 2 to the flange 3 of the conduit with the interposition of a packing 10, is provided internally with an annular member 5, 6 surrounded by heat-insulating material 9 and having its internal tubular part coincident with the conduit. Electrical measuring means such as a resistance 12 is housed between the walls 5, 6 of the member and a tube 11 is provided for the leads.
Patent GB-182683-A (GB)
Title: Improvements relating to cycle and other vehicle bells
IPC: B62J3/00
Filed: 1921-07-02
Abstract: 182,683. Lucas, O., and Walmsley, W. H. July 2, 1921. Bell-operating mechanism, hand; bell-sounding members, supports for.-In bells having a pair of domes rotatably mounted on a fixed central plate supporting the striking-mechanism, the flanged central plate is formed by pressing or like operations on sheet-metal pieces. Fig. 6 shows the flange portion a integral with the plate b. In Fig. 13 the flange a is shown secured to the central plate by lugs d. In a modification, Fig. 17, the flange a is supported by lugs d on opposite sides of the plate. The clip for attaching the bell to part of a vehicle has lugs which pass through a slot in the flange and are secured to the central plate.
Patent GB-649304-A (GB)
Title: Acetone resins
IPC: C08G2/00
Filed: 1948-07-06
Abstract: Formaldehyde (1 or 2 mols.) is condensed with acetone (1 mol.) in the presence of a catalytic secondary amine which is soluble in the reaction mixture and present in amount to maintain the reaction mixture for the greater part of the condensation at a pH of 9.5 to 11.5.  The amount of catalyst used should be sufficient to impart to the initial reaction mixture a pH value of at least 8.8.  Anhydrous polymers of formaldehyde may be used instead of the monomer.  In examples formalin and acetone are condensed using dimethylamine, diethylamine and piperidine as catalysts, and dehydrated by vacuum distillation.  Other catalysts specified are pyrroline, pyrrolidine and piperazine.  For hardening, piperidine, piperazine, guanidine, polyethylene amines and substitution products, e.g. propylene diamine and diethylene triamine, may be added prior to use.  The resins may be mixed with other resins, e.g. phenol-formaldehyde base-catalysed resins. The resins may be used for bonding laminations of paper, wood veneers or cloth and for coating.
Patent GB-643131-A (GB)
Title: Improvements in smallware looms
IPC: D03D35/00
Filed: 1948-07-07
Abstract: 643,131. Small-ware looms; beat-up motions. WILKINSON & CO., Ltd., T. F., WILKINSON, T. B., and HARBOURN, K. July 7, 1948, No. 18217. [Classes 142(ii) and 142(iii)] Beat-up motion.-The batten 1 slides on guides 2 and is located endwise by rollers 21 running on both edges of each guide; the batten is actuated by connecting rods 4 from a crankshaft. Operating shuttles. - The shuttle operating rack 11 is reciprocated by a pinion 9 meshing with a rack 10 attached to the rack 11; the pinion slides on a splined shaft 7 which is oscillated by a toothed sector 16 meshing with a pinion on the shaft, the sector being operated by a cam through a link 17.