baber/WOPTO huggingface dataset:
Patent GB-176349-A (GB)
Title: Improvements in or relating to stopping mechanism for looms and other machinery
IPC: D03D51/00
Filed: 1922-02-23
Abstract: 176,349. Mohawk Carpet Mills, Inc., (Assignees of Hathaway, E. F.). March 5, 1921, [Convention date]. Controlling variable-speed gearing.-In textile or other machinery, yokes 75, 76, Fig. 1, for moving a clutch-member 77, whereby the machine is caused to be driven at a low speed or at a high speed or is stopped, are operated from a shaft 50, Figs. 1 and 6, provided with a member 61 connected by a link 88 to a hand lever 83. When this lever is in the position shown in full lines, the machine is running at full speed, and a projection 66 on a spring-controlled arm 41 pivoted at 42 engages an inclined shoulder 64 on a web 63 on the member 61, another projection 44 on the arm 41 engaging a shoulder 55 on an arm 54 loosely mounted on the shaft 50. A rod 69 acted upon by two sprnigs 73, 74 abutting against a fixed part 70 is pivoted at 68 to the arm 54. On moving the lever 83 to the right, the member 61 and shaft 50 are rocked so as to stop the machine, and the shoulder 64 rocks the arm 41 and frees the arm 54, which is thereupon rocked to the right into a neutral position by the compressed spring 74. Moreover, if at any time the material operated upon is defective, the lower arm 27 of a lever 26 pivoted on a cam-controlled rocking lever 24 is rocked counter-clockwise so that when the lever 24 moves in a counter-clockwise direction, the arm 27 engages a shoulder on the arm 41, thereby rocking this arm and freeing the arm 54. This arm is then rocked to the right, as described above, to a neutral position, and a projection 59 on the arm engages and operates the member 61, whereby the shaft 50 is rocked to stop the machine. To run the machine at low speed, the lever 83 is moved further to the right until the projection 44 engages behind a second shoulder 56 on the arm 54, the spring 73 being then compressed, so that, if then the material operated upon becomes defective and, consequently, the arm 41 is rocked and frees the arm 54, the spring 73 causes the arm 54 to move to the left to its neutral position, a second projection 58 thereon engaging and operating the member 61, whereby the shaft 50 is rocked to stop the machine. A notched arm 104 on the shaft 50 engages a roll on an arm 99, which operates arms 95, 93. The arm 95 is provided with an adjusting-screw 96 and the arm 93 with a brake-shoe 91 acting on a drum &c. 90 upon the driving-shaft 79, whereby a brake is applied to stop the machine when the clutch-member 77 is moved to neutral position. A spring-controlled push-rod &c. 100 acts upon the arm 93. The mechanism is shown applied to a loom for weaving chenille.
Patent GB-548879-A (GB)
Title: Improvements in or relating to non-metallic sliding clasp fasteners
IPC: B29D5/00
Filed: 1941-04-25
Abstract: 548,879. Sliding-clasp fasteners. CORNER, G. H. C., and LIGHTNING FASTENERS, Ltd. April 25, 1941, No. 5373. [Class 44] Sliding-clasp fastener members which are not damaged by washing in hot or boiling water are formed by any suitable process such as moulding pressing, stamping, or machining, from proteinic material such as casein or the substance obtained by extraction from ground nut meal by aqueous alkaline or saline solutions. The fasteners are formed from the material in an uncured or softened state, are mounted on the connecting member, and then finally cured or hardened as by treatment with formaldehyde and heat, the members being made of such form and dimensions that the dimensional changes which occur on curing or hardening serve to secure them in place. If desired adhesive may be applied to the contacting surfaces. In one method the uncured fasteners of desired form are provided with a bifurcated attachment portion the legs of which have external grooves. The legs are inserted in a link of a chain connecting member (which may be of metal or cured casein) with the grooves registering with the sides of the link. The members become attached to the chain links. The chain may be provided with loops for securing the chain to a tape by stitching. The fasteners may be formed from a mixture of protein material with colouring matter. A plasticizer may be added. In an alternative method the proteinic material is treated with hardening agent and then worked to desired form whilst still moist, the hardening or curing being completed by drying. The fasteners may be given polish by dipping in hypochloric solution. Specification 548,878 is referred to.
Patent GB-737198-A (GB)
Title: Pressure reducing valve
Inventor: DEWAR DOUGLAS
IPC: F16K17/168
Filed: 1953-02-27
Abstract: 737,198. Valves. DUNLOP RUBBER CO., Ltd. Jan. 19, 1954 [Feb. 27, 1953], No. 5492/53. Class 135. A pressure-regulating valve device comprises a casing with inlet and outlet nozzles 10, 4 respectively, a tiltable seat 17 for a tubular inlet valve 18a which slides in a fixed sleeve 5 and is urged towards its seat by a spring 24, and a relief valve 31 which seats on a flange21 formed on the end of the inlet valve, the relief valve being urged towards its seat, and the inlet valve being urged towards open position, by a spring 29. When the relief valve is opened, the fluid escapes through gauze-covered 'apertures 33 in the casing. The seat 17 is positioned by a stud 15 so that it can swing and adjust itself to the 'knife-edged closure of valve 18a. Relief valve 31 seats on a ring of soft or silicone rubber 22 inset into the seat. The piston-like extension of the relief valve is packed by a metal ring 27.
Patent GB-196444-A (GB)
Title: Improvements relating to chair and other seats and backs
IPC: A47C7/34
Filed: 1922-02-24
Abstract: 196,444. Denham, R. Feb. 24, 1922. Spring surfaces.-In a seat &c. of the kind in which the upholstery &c. is supported upon upholstery &c. springs mounted upon a wire &c. frame and wherein the front of the frame is directly supported on the front of the chair frame, the sides and back of the wire &c. frame are suspended from the chair frame by coiled springs. In the preferred form of the invention, the sides f and back g of the chair frame carry wires h to which are attached the coiled springs e which support the iron frame b. The front of the frame b may be similarly suspended, and the invention may be applied to chair backs.
Patent GB-540022-A (GB)
Title: A process for the production of aromatic hydrocarbons from mixtures of paraffins and cycloparaffins
IPC: C07C5/41
Filed: 1940-03-28
Abstract: 540,022. Cyclic hydrocarbons. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. March 28, 1940, No. 5614. Convention date, April 17, 1939. [Class 2 (iii)] In the catalytic conversion of a mixture of paraffins and cycloparaffins with from 7-12 carbon atoms to aromatic hydrocarbons, the cycloparaffins having a non-hydroaromatic character are, in a preliminary step, converted into hydroaromatic hydrocarbons. This may be effected (a) by heating to about 300‹C. in the presence of hydrogen and a catalyst consisting of platinum on a coal support; (b) by treating below about 200‹C. with aluminium halides or double compounds thereof with metal compounds or organic substances such as Gustavson compounds, which may be employed as such or on supports such as kaolin, silica gel and aluminium oxide or mixed into a paste with viscous hydrocarbon oils. Complex compounds which facilitate the treatment may be formed during the reaction, e.g. from aluminium chloride and tripropylbenzene. Preferably the process is effected in the presence of aluminium chloride, hydrogen chloride and hydrogen under pressure. Straight run gasoline and gasoline obtained by the hydrogenation or destructive hydrogenation of mineral oils, coal or tar are suitable sources of paraffins containing cycloparaffins. In examples, a Rumanian hydrocarbon mixture containing 5 membered ring naphthenes and also a mixture of n-heptane and dimethyl cyclopentane are passed at 20 atmospheres into contact with aluminium chloride in the presence of hydrogen chloride and hydrogen. The yield of aromatic hydrocarbons is increased and the activity of the catalyst is maintained when the resulting mixtures are cyclicised by passage over a catalyst containing aluminium and chromium oxides and caustic potash. Specification 536,497 is referred to. The Specification as open to inspection under Sect. 91 comprises also examples in which Borneo and Venezuelan gasolines are employed. In one example, the non-hydroaromatic hydrocarbons are converted in a rotating V  2 A steel autoclave by means of aluminium and hydrogen chlorides. Tungsten sulphide catalyst is employed for the production of aromatic hydrocarbons from a product freed from 5-membered ring naphthenes. This subject-matter does not appear in the Specification as accepted.
Patent GB-853598-A (GB)
Title: Improvements relating to heat pump heating systems
Inventor: BURTON PHILIP
IPC: F25B29/00
Filed: 1958-02-22
Abstract: 853,598. Electric immersion heaters. V.D.M. SPINNERS Ltd. Jan. 15, 1959 [Feb. 22, 1958], No. 5805/58. Class 39(3). [Also in Group XIII] A hot water boiler 4 is normally heated by the condenser 3 of a compression heat pump the evaporator 6 of which receives heat from ambient air circulated thereover by a fan 9, but at low ambient temperatures an electric immersion heater 11 is switched on by a thermal element 12 responsive to air temperature adjacent the evaporator. Heater 11 is also controlled by a boiler thermostat 13. Element 12 can be short circuited for rapid heating of the boiler irrespective of air temperature. An additional evaporator 5 cools a refrigerator.
Patent GB-391947-A (GB)
Title: Improvements in or relating to table and like knives
IPC: B26B9/02
Filed: 1932-02-27
Abstract: 391,947. table knives. THORPE, J. H., 683, Abbey Lane, Park Head, Sheffield. Feb. 27, 1932, No. 5874. [Class 30.] In table knives of kind having groups of lateral grooves b arranged alternately on the sides, tapering extensions c are formed at the ends of the grooves b. They are of varying length so as to form semi-circles.
Patent GB-119221-A (GB)
Title: Improvements in or relating to Lifting Tongs.
Inventor: LICHTENTHAELER FRANK EDWARD
IPC: B66C1/42
Filed: 1918-04-05
Abstract: 119,221. Lichtenthaeler, r. E. Sept. 19, 1917, [Convention date]. Lifting-dogs. -- Relates to lifting- dogs for gripping horizontally disposed cylindrical blocks of caustic soda or other corrosive substance and depositing them in a vertical position in a dissolver without the operative having to handle the blocks. The gripping levers 10, pivoted to a cross frame 18, are operated by toggle levers 16 connected by a pin 24 to the lifting link 28, the lower part of which is slidably mounted in a slotted frame 26 and also carries a catch 30 adapted to engage a hook 32 to retain the gripping-levers in the open position. The usual sheet-iron container having been stripped from the caustic soda block A, the lifting-dog is lowered into position and by pulling the cord 38 the catch is released and the block gripped by the jaws 12 on the gripping levers. The jaws are connected bv a semi-cylindrical flexible metallic band 36 and are pivotally mounted on their levers so as to be rotatable on an axis joining the ends of the levers, such rotation being limited to about 90 degrees by stops 40, 42. and when the block is raised it swings into a vertical position and is then lowered into the dissolver.
Patent GB-1376373-A (GB)
Title: Cold-setting road-marking materials
IPC: E01F9/04
Filed: 1972-02-09
Abstract: 1376373 Epoxy resin composition SVENSKA AB CLEANOSOL 9 Feb 1972 [10 Feb 1971] 5933/72 Heading C3B [Also in Division E1] A cold setting material for marking roads comprises pigment, filler, aggregate, hardener and a curable resin which is an aliphatic epoxy resin having an epoxide equivalent of 140-170 and/or a cycloaliphatic epoxy resin having an epoxide equivalent of 130-200. The composition may additionally contain an epichlorhydrin/bisphenol A epoxy resin having epoxide equivalent 180-240 and/or a cycloaliphatic glycidyl ester having epoxide equivalent 150- 170 and/or condensation product of glycerol and epichlorohydrin of epoxy equivalent 140- 200. The pigment may be fluorescent and the aggregate glass beads. A preferred hardener is a BF 3  amine complex.
Patent GB-874582-A (GB)
Title: Improvements in or relating to preparation of polyesters
IPC: C08G63/86
Filed: 1960-02-19
Abstract: In the manufacture of polyalkylene terephthalates by effecting ester-interchange between a dialkyl terephthalate and a glycol containing 2-10 carbon atoms and polymerizing the resulting glycol terephthalate, polyesters of improved colour are obtained by effecting both the esterinterchange and the polymerization reaction in the presence of a divalent metal antimonite, e.g. cadmium, tin, magnesium, manganese, lead, beryllium, calcium, strontium, barium, zinc, mercury, iron, cobalt, nickel, copper or chromium antimonites. The ester-interchange reaction may also be effected in the presence of an additional catalyst (e.g. manganese acetate, magnesium acetate, calcium acetate or barium acetate), or a colour inhibitor (e.g. triphenyl phosphite).  The dialkyl terephthalate may be partly replaced by a dialkyl orthophthalate or isophthalate.  Examples describe the manufacture of polyethylene terephthalate from dimethyl terephthalate and ethylene glycol.  Specification 740,381 is referred to.
Patent GB-200132-A (GB)
Title: Improvements in electrical interrupters or make-and-break switches with vibratory contacts
IPC: H01H50/84
Filed: 1922-03-01
Abstract: 200,132. Bower, J. B. March 1, 1922. Electromagnetic interrupters; contacts. - In induction coil &c. interrupters the co-operating contacts a<1>, a are mounted at the free ends of blade springs, the adjustable contact a being mounted on a spring b which has a tendency to move it away from the vibrating contact a<1>. The adjustment of the relatively fixed contact a is effected by a member whose axis is a.pproximately perpendicular to the line of movement of the adjustable contact such member consisting in Fig. 1 of a screw d with a tapered end against the periphery of which presses a projection c attached to the blade spring b, as in Fig. 2 of an eccentrically-mounted cam disc f secured on a shaft g with operating handle h, the shaft g being located in a bearing in the bracket i.
Patent GB-525632-A (GB)
Title: Improvements in and connected with reflector fittings for electric lamps
IPC: F21V17/00
Filed: 1939-02-24
Abstract: 525,632. Supporting reflectors, VERITYS, Ltd., and CHAPMAN, F. E. Feb. 24, 1939, No. 6133. [Class 75 (ii)] In electric lighting apparatus in which the crown 1 of a reflector is detachably clamped between a rigid cap 8 and a spider 14, the latter screws up and down on the cap with the reflector when the latter is rotated. The spider 14 screws on to a stem 11 forming part of the cap 8. A screw 10 locks the spider in the clamping position. The reflector crown 1 is flanged inwardly and downwardly at 16 and 17, and has notches formed in the flanges so that, when the spider is in the lower position, the crown can be passed over the legs of the spider and brought into a position in which its rotation causes the spider to rotate. The lower part of the reflector may be integral with or detachably connected with the crown 1. Integral with the cap 8 is a wiring box 4.
Patent GB-477499-A (GB)
Title: Improvements in the manufacture and production of wetting, cleansing, dispersing agents, solvents and the like
IPC: C09K23/00
Filed: 1937-03-01
Abstract: Secondary alcohols, obtained from aliphatic carboxylic acids having about 5 to 11 carbon atoms in the molecule or esters or anhydrides thereof by first converting them into ketones and then reducing the latter are sulphonated.  The resulting products are stated to be solvents and wetting, foaming, cleansing and dispersing agents.  The fatty acids used as starting material may be those obtained by the oxidation of fats, oils, waxes or hydrocarbons, or those obtained as bye-products in the catalytic preparation of methanol or butanol or in bacterial processes. Ketonization may be performed by the method described in Specification 410,087.  In examples: (1) a fraction of oxidized train oils having from 5 to 11 carbon atoms in the molecule is ketonized and then hydrogenated in the presence of cobalt; the resulting alcohols are treated with chlorsulphonic acid and neutralized; (2) oxidized paraffic wax is distilled and the esters collected as first runnings are ketonized by the process of Specification 410,087; the ketones are freed from iron by means of sulphuric acid, hydrogenated in the presence of copper-manganese-zinc catalyst and sulphonated; unsulphonated constituents are extracted by means of benzine after neutralization.ALSO:Secondary alcohols, obtained from aliphatic carboxylic acids having about 5 to 11 carbon atoms in the molecule or esters or anhydrides thereof by first converting them into ketones and then reducing the latter are sulphonated to obtain dispersing-agents. The fatty acids used as starting material may be those obtained by the oxidation of fats, oils, waxes or hydrocarbons or those obtained as bye-products in the catalytic preparation of methanol or butanol or in bacterial processes.  In examples the fatty acids or esters used as starting material are those obtained by fractionating oxidized train oil and by oxidizing paraffin wax.
Patent GB-251389-A (GB)
Title: Improvements in and relating to gyroscopes
IPC: G01C19/38
Filed: 1925-03-06
Abstract: 251,389. Brown, S. G. March 6, 1925. Gyroscopic apparatus. - The rotor of a gyroscope is provided with a hollow and flexible hub member running on ball bearings adjustable in relation to a central spindle passing through the hollow hub and carried by the gyro-mounting. The invention is particularly applicable to neutral gyroscopes such as those used in directional instruments, stabilizers &c. In the form shown the rotor forms part of a squirrel-cage motor and comprises a heavy rim portion a<1> and a hollow hub a<3> through which passes the spindle i. The hub a<3> runs on ball bearings on the spindle, the races h<1>, h<2> being attached to flanges e', e<2> on the casing f. The race h<1> may be formed integrally with the spindle, the other end of the spindle being threaded and provided with an adjusting nut k. The thickness of the hub wall decreases from the web in each direction so as to ensure flexibility. For lubricating, an axial hole m in the spindle communicates by one or more radial holes n with an absorbent sleeve or pad o.
Patent GB-1144612-A (GB)
Title: A process for the production of organic compounds containing nitrile groups
IPC: C07B37/00
Filed: 1967-02-09
Abstract: 1,144,612. Production of nitrile derivatives. DEUTSCHE GOLDUND SILBER-SCHEIDEAN-STALT. 9 Feb., 1967 [9 Feb., 1966], No. 6246/67. Heading C2C. Organic compounds containing nitrile groups are obtained by adding hydrogen cyanide to olefinic carbon to carbon double bonds in the presence of a catalyst which is a compound capable of forming cyanide ions, and in the presence of one or more organic dipolar aprotic solvents other than linear amides. The reaction may be effected at 20 to 200 C., the organic solvent, which is suitably employed in an amount of at least 0À3: 1 molar of the unsaturated reactants, may be a lactam, a lactone, dimethyl sulphoxide, sulpholan or propylene carbonate, and the catalyst, which is suitably an alkali metal cyanide, is preferably employed in an amount of 0À1 to 10% by weight based on the unsaturated reactants. The hydrogen cyanide, which may be admixed with an inert gas, may be employed in liquid or gaseous form. In examples, HCN is reacted with methyl methacrylate, ethyl crotonate, methacrylonitrile, methyl acrylate and ethyl cinnamate to yield #-cyanoisobutyric acid methyl ester, #- cyanoisobutyric acid ethyl ester, pyrotartaric acid dinitrile, #-cyanopropionic acid methyl ester and #-phenyl-#-cyanopropionic acid ethyl ester respectively.
Patent GB-1006172-A (GB)
Title: Improvements in or relating to controllable pulse repeaters
IPC: H03K3/30
Filed: 1964-02-14
Abstract: 1,006,172. Transistor pulse circuits; circuits employing bi-stable magnetic cores. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Feb. 14, 1964 [Feb. 18, 1963], No. 6290/64. Headings H3B and H3T. The output winding of a bi-stable magnetic core is connected in the emitter-collector path of a transistor of a monostable circuit such that, unless inhibiting means are rendered operative, a pulse on an input winding switches the core in one direction and the resulting pulse in the output winding causes the transistor to conduct and return the core to its original state. If core K 1  is in its N state a pulse of one polarity on line PL has no effect on the core but if it is in the P state it will be switched to its N state. This will produce a pulse in winding W 13  which will cause a transistor blocking oscillator to produce a pulse of emitter collector current and this is in such a direction as to return the core to its P state. An output pulse is accordingly produced in the output winding of transformer TR 1  or in a winding on core K 1  or in a load in series with the collector or emitter circuit. The core may be set to remain in the N state and has to be unresponsive to pulses PL by rendering the transistor non-conducting during one of the PL pulses as by applying a simultaneous blocking pulse to diode G 21  or by interrupting the emittercollector current circuit. It may be returned to the P state by closing a switch S to send a current pulse through winding W 11  or by applying a pulse through G 11  to the base of T 1  to cause the transistor to conduct. Alternatively, if the transistor T 2  is rendered conductive its collector current sets the core of the first to the unresponsive N state, the voltage across the common emitter resistor Z 1  serving to prevent transistor T 1  from conducting and resetting the core.
Patent GB-271962-A (GB)
Title: Improvements in or relating to submarine signalling apparatus
IPC: G01S1/72
Filed: 1926-03-06
Abstract: 271,962. Keay, R. W. March 6, 1926. Subaqueous audible signals.-Power actuated means for giving or causing to be given sound signals is normally restrained from operation by electrical energy but will automatically come into operation on a normally energized electrical element being de-energized. A water-tight casing contains an electric motor 6 the shaft 20 of which drives a worm reduction gear in an oil bath contained in a. casing 30. The drive proceeds through a shaft upon which are two pinions 26 gearing with toothed discs 27 on a shaft, the discs being provided with cams 28 adapted to engage pins 29 on a sliding hammer 14 guided in bearings 15, 16. The cams retract the hammer against the influence of a surrounding spring 18 and upon the ends of the cams releasing the pins the spring forces the hammer head against a diaphragm 13 closing the casing and exposed to the water. The casing is provided with a separate compartment below it for containing a primary or secondary battery supplying the motor 6. The circuit of the motor is normally held open by a normally-energized relay contained in the casing. In the circuit of the relay outside the casing are gaps which may be closed by water or by switches to short-circuit the relay whereupon the motor will automatically start and the signal will be operated as long as the battery supplies energy. Alternatively the electrical element or relay could control the cut-off and also admit pressure fluid from a compressed air reservoir to a pneumatic engine adapted to operate or control a pneumatic or spring-actuated hammer.