baber/WOPTO huggingface dataset:
Patent GB-844560-A (GB)
Title: Control system for a turbojet engine
IPC: F02K1/15
Filed: 1958-10-07
Abstract: 844,560. Automatic gas-turbine engine control systems. GENERAL MOTORS CORPORATION. Oct. 7, 1958 [Oct. 11, 1957], No. 31946/58. Class 38 (4). [Also in Group XXVI] For a gas-turbine jet engine, an automatic control system comprises means controlling guide vanes 22 and a compressor bleed 29 so as to maintain constant the multiple of engine speed and the square root of inlet air temperature in degrees absolute, co-operating with means controlling a variable area jet pipe nozzle apparatus 16 so as to maintain constant the jet pipe temperature for a given engine speed. The engine is primarily controlled by a conventional fuel controller 33 responsive to engine speed through a shaft 34 and a manual throttle 35 to vary the fuel supplied to burners 12 through a feed-line 37. A mechanical servo 40 responsive to inlet air temperature, sensed by a bellows capsule 41, and to engine speed through a shaft 38, controls an actuator 28 positioning the guide vanes, and an actuator 32 positioning a valve 31 in the compressor bleed. A shaft 46 having an angle of rotation proportional to engine speed, extends from the servo 40 and carries cams 47, 76, 91 scheduling engine speed to the control means for the nozzle 16. The nozzle is positioned by an actuator 21 controlled by an hydraulic valve 59, a piston 58 of which is coupled to a compound linkage 49, 54. The linkage is positioned by the cam 47, a rod 51 applying mechanical feedback from the nozzle and by motors 83, 100 through a rack and pinion 87, 88. The motor 83 is driven by a power amplifier 68 responsive to the out-ofbalance between the voltage of a thermocouple 66 and a voltage from a network 70 representative of the desired turbine outlet temperature scheduled by cam 76. The motor 100 drives the rack 88 to a mean position determined by switches 101, 102 when the rate of change of speed, as determined by a rate amplifier 97 through the cam 91 and potentiometer 94 is such as to actuate a relay 78 which simultaneously disconnects motor 83 and energizes motor 100. At speeds below idle, a switch 106 is closed to energize a relay 81 and cause the motor 83 to drive the nozzle to the open position. The network 70 comprises a centre-tapped potentiometer 73 supplied from the sliders of potentiometers 131-3 controlling the voltage gradient. Cold junction compensation for thermocouple 66 is by temperature-sensitive resistors 129, 130. In a modification, Fig. 7 (not shown), motor 100 and the low-speed switch 106 are not used, the nozzle area at speeds below idle being determined by a cam, and the motor 83 is only operative to correct over-temperature.
Patent GB-830199-A (GB)
Title: Improvements in or relating to textile carding engines
IPC: D01G15/48
Filed: 1957-10-15
Abstract: 830,199. Carding engine doffing combs. CLAYTON, J. H. Sept. 23, 1958 [Oct. 15, 1957], No. 32103/57. Class 120(1)  A carding engine doffing comb is oscillated by U-shaped lever 11 mounted on the comb shaft 10 and recessed to receive a block 15 also mounted on the shaft 10 and arranged for movement to clamp the lever 11 to the shaft 10. Movement into clamping position is preferably by a nut 18 and screwed stud 16. It is stated that such wear as would ensue would be arcuate and not prevent fine adjustments.
Patent GB-1417836-A (GB)
Title: Method of internal grinding
IPC: B24B5/06
Filed: 1974-07-19
Abstract: 1417836 Grinding ZAHNRADFABRIK FRIEDRICHSHAFEN AG 19 July 1974 [19 July 1973 7 March 1974] 32104/74 Heading B3D A method for grinding cylindrical or conical holes in workpieces 1 comprises using a cylindrical or tapering grinding wheel 4 provided with an inclined end face 6, the cylindrical or tapering surface of the wheel being adjusted or dressed by a diamond, the grinding wheel being fed through the entire length of the hole so that the entire grinding depth is removed by the inclined end face in a single traverse. In apparatus for carrying out the method, a workpiece 1, Fig. 1, is mounted in a rotatable clamping device, and the grinding wheel 4 is dressed so that its external surface 8 is aligned with the desired finish size of the workpiece. The end face is dressed to have a bevel 6 and the wheel is fed axially into the workpiece, the removal of material being effected by the bevelled end face 6 and the wheel entirely penetrating the workpiece. After withdrawal from the workpiece, the bevelled end face is dressed by a diamond 7, the stroke b of which is kept constant so that a surplus part 28 remains which, after dressing of the wheel over its entire length, provides a further grinding surface. In another embodiment, the wheel is tapered, Fig. 6, and has its external surface 8 dressed by a diamond 9 and the bevelled end face dressed by a diamond 7. The axis of rotation of the wheel is inclined to that of the workpiece. In a further embodiment, the grinding wheel 15, Fig. 8, is tapered and cup-shaped, and its surface 8 is dressed by a diamond 16 on a pivoted arm to the finished size of the bore in the workpiece, the stock being removed by the bevelled end face 12 which is dressed by an abrasive roller 19 which also dresses an end of the wheel to have a surface 18. Upon radial movement of the wheel, the bevelled surface 12 removes stock in a single pass from the face 11 of the workpiece by an amount determined by the surface 18.
Patent GB-339733-A (GB)
Title: Improvements in the manufacture and production of intaglio printing inks
IPC: C09D11/14
Filed: 1929-10-23
Abstract: 339,733. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Oct. 23, 1929. Ink.-Intaglio printing-inks, suitable for printing on metal foils, celluloid, acetyl-cellulose products similar to celluloid, transparent cellulose foils, paper, glazed paper, or packing-materials for foodstuffs, comprise cellulose esters soluble in ethyl alcohol, colouring-matter, and a solvent consisting of at least 70 per cent of ethyl alcohol but free from aliphatic homologues of 1.4-dioxane. The cellulose esters may be acetyl-cellulose or nitrocellulose containing 10.5 to 11.5 per cent of nitrogen. There may also be added tricresyl phosphate, diethyl phthalate, castor oil, natural or artificial resins, such as colophony, shellac, Manilla copal, cyclohexanone condensation products, or the like, oils, pigments, and fillers. The alcohol should contain up to 10 per cent of water, and other solvents and diluents, such as ethers, esters of glycol or monohydric alcohols, ketones, dioxane, or benzines may also be added. According to examples, (1) nitrocellulose, diethyl phthalate, and chrome yellow are dispersed in a mixture of ethyl alcohol, ethylene glycol monoethyl ether, ethylene glycol monomethyl ether, colophony, and diethyl phthalate; (2) nitrocellulose moistened with isopropyl alcohol, diethyl phthalate, castor oil, and colophony are ground with ethyl alcohol and Milori blue.
Patent GB-1528901-A (GB)
Title: Radio signalling systems
IPC: G08B13/00
Filed: 1975-10-20
Abstract: 1528901 Selective signalling W D GILMOUR 20 Oct 1975 [20 July 1974] 32227/74 Heading G4H A radio signalling system includes a number of portable tokens each capable of transmitting signals in the form of bursts of carrier frequency separated by modulation pulses, the number of cycles in each burst being characteristic of that token, and a receiver capable of distinguishing between received signals from tokens with different characteristic numbers of cycles in their bursts. In a first embodiment, the cycles in each burst are counted and a most-significant part of the count is compared with a preset value to increment a further counter on equality and decrement it on inequality. If a predetermined number is reached by the further counter, access is given to a secure area. A second embodiment (usable by old people to summon help) differs in that a most-significant part of the count in one burst is compared with the same part for the next burst to control a further counter as before, but instead of access being given to a secure area, an alarm is given and the part-count displayed to identify the person.
Patent GB-959968-A (GB)
Title: Improved sealing and severing device for packaging machines
IPC: B65B61/08
Filed: 1962-08-22
Abstract: 959,968. Seaming and cutting non-metallic sheet material. KISAB A.B. Aug. 22, 1962 [Sept. 11, 1961], No. 32335/62. Headings B4B and B5K. A sealing and severing device in packaging machines for effecting sealing and simultaneously therewith severing of packages transversely to the feeding direction of the packages by means of two rotating rolls resiliently pressed against each other and against opposite sides of the package sheet material and having surfaces designed to form narrow, mutually co-operating sealing zones parallel to the axes of the rolls, one of two co-operating zones being provided with a knife and the other with a striking bar having a counter surface perpendicular to the knife, both members extending all along the length of the zones, is characterized in that the knives and/or the striking bars are slidably fitted in radial slots in the rolls and are provided with end portions protruding from the end walls of the rolls, which end portions, at the severing moment move into engagement with and are pressed radially outwards by two cam surfaces which are movable in a plane perpendicular to the tangential plane of the rolls against the urge of resilient members. In the embodiment shown, lower roll 1 is rotatably journalled in two fixed arms 4 whilst the upper roll 2 is rotatably journalled in two lever arms 6 pivoted on frame 3 by shaft 8. Also on shaft 8 are pivoted two further arms 9, each of which supports a roller 11 rotatably journalled on a shaft 10. The rolls 1, 2 are formed with surfaces which form mutually coacting sealing zones 12, 13 and 14, 15 in which zones the rolls have radial slots 16, 17, 18, 19. Striking bars 20 are fixedly mounted in slots 16, 18 and knives 21 are slidably fitted in slots 17, 19 and have end portions protruding from the end wall of the roll 2. The free ends of arms 6 and 9 are resiliently attached to the arms 4 by means of rods 22 and 23 and springs 24, 25 adjustable by nuts 26, 27. As rolls 1, 2 are rotated, units 28 to be packaged in sealable sheet wrapper material are advanced between rolls 1, 2. The radius of rolls 1, 2 and the number of sealing zones are so adapted that seals are obtained intermediate the package units. At every sealing operation the end portions of a knife 21 pass under the rolls 11 so that the knife is pressed outwards and into engagement with the corresponding striking bar and is pressed thereagainst by spring 25. The bars 20 are sunk below the surface so that the sheet material is clamped during the cutting operation. If desired, it is possible to give the knife a tilting motion during the cutting operation. It is also possible for the rolls to have a reciprocating motion the rolls being parted during the backward motion.
Patent GB-834877-A (GB)
Title: Improvements in or relating to burnishing machines
IPC: B24B39/04
Filed: 1958-10-10
Abstract: 834,877. Rolling; burnishing crank-shafts. INDUSTRIAL METAL PRODUCTS CORPORATION. Oct. 10, 1958 [Oct. 11, 1957], No. 32358/58. Classes 83 (2) and 83 (4). A burnishing unit comprises a burnishing roll, rotatably mounted in a supporting structure by means which include a shaft to define the axis of rotation of the roll and means for securing the shaft to the structure eccentrically of the roll axis. The supporting structure comprises a pair of members 17 carrying yokes 20 on which supporting arms 18 are mounted at least one of the arms being pivotally mounted as at 19. Each roll 25 is mounted on roller bearings 27 on a shaft 28 having extensions 29 rigidly held in recesses in the lower end 30 of the arm 18 by retainers 31 bolted to the arm at 32. The arms may be pre-loaded by adjustable stops 35 and the inward travel of the arms is limited by stops 34. The burnishing rolls form a part of a machine for burnishing a crank-shaft 12 supported on stationary bearings 15 and driven by a drive unit 24c synchronously with two master crank-shafts 21a, 21b. Each pinbearing surface of the crank-shaft 12 is burnished by a unit as above described, the pairs of members 17 being carried and reciprocated by two corresponding pin bearings of the master crank-shafts.
Patent GB-521006-A (GB)
Title: Improvements in switching arrangements for systems employing ultra-high frequencies
IPC: H05B6/04
Filed: 1938-11-08
Abstract: 521,006. Wireless systems and apparatus. STANDARD TELEPHONES & CABLES, Ltd., and ARMSTRONG, L. J. HEATON. Nov. 8, 1938, No. 32392. [Class 40 (v)] In an ultra-high frequency transmitting or receiving system, the tuning inductance is changed for altering the waveband in use without employing contact-making switches, by means of a conducting plate movable into position with respect to a fixed plate or plates to form a coupling capacity, therewith. In Fig. 1 the tuned circuit 9, 10 is coupled to the output circuits of valves 5, 6 over capacities 1, 1<SP>1</SP>, 2, 21 and to the load circuit 13 over transmission line 16 and capacities 3, 3<SP>1</SP>; 4, 4<SP>1</SP>; the four coupling capacities are constituted by metallic plates A1 A2; B1, B2, co-operating with fixed plates 1, 2, various inductances A, B, C, Figs. 2 and 3 being thereby coupled into circuit selectively. The inductances A , B, C are mounted on a rotatable drumshaped member 17 by means of insulating bars 19. The tuning condenser 10 may be dispensed with, the inductance then being series-tuned by suitable choice of condensers 1, 1<SP>1</SP>; 2, 21.
Patent GB-307529-A (GB)
Title: Improved process for the production of hydrogen and gas mixtures containing the same
IPC: C01B3/02
Filed: 1927-12-02
Abstract: 307,529. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Dec. 2, 1927. Hydrogen.-A gas consisting substantially of hydrogen, or a hydrogen-nitrogen mixture for ammonia synthesis, is obtained by exposing solid, liquid or gaseous carbonaceous materials together with air, oxygen or carbon dioxide with or without steam to the action of an electric arc, the resulting carbon monoxide being converted by treatment with steam into hydrogen and carbon dioxide. The gaseous mixture obtained is freed from carbon dioxide and other impurities. The process is regulated so that combustion of the hydrogen content of the materials takes place only to a slight extent. Further hydrogen and nitrogen may be added to nitrogen-hydrogen mixtures obtained according to the present process, to bring them to the required composition, and the hydrogen so required may be produced by exposing a part of the carbonaceous materials in association with oxygen, carbon dioxide and steam, alone or in admixture, to the electric arc and converting the carbon monoxide in the resulting mixture into hydrogen as before. The starting matarials include methane, coal distillation gases, tars and mineral oils but not materials obtained in the conversion of saturated into unsaturated hydrocarbons. Liquid materials are vaporized and solid materials pulverized before treatment. The heat of the effluent gases from the arc may be transferred to the products to be treated. Examples are given of the treatment of coke oven gas and of natural gas consisting mainly of methane. Specification 269,547 is referred to.
Patent GB-650927-A (GB)
Title: Improvements in or relating to farming implements
IPC: B66F9/065
Filed: 1948-12-16
Abstract: 650,927. Load-handling apparatus. PATERSON, R. M. Dec. 16, 1948, No. 32613. Addition to 644,445. [Class 78 (iii)] [Also in Groups I and XXI] In an improvement in the hay-sweep described in the parent Specification, the backrack is composed of tubular members 203, 207, 210, detachably connected together. The device comprises a tool-bar with longitudinallyextending tines T. Brackets 200 secured to the tool-bar are pivoted to the power-operated lifting links L at the rear of a tractor. As in the parent Specification, a latch arm 47 is pivoted at one end to a central upright 203 and at the other end to a link M pivoted to the tractor, the latch arm being normally secured to the upright by a latch 43<1>, releasable to permit the sweep to dump its contents. The arm 47 is bifurcated and has a number of holes 214 through which may pass the pivot-pin 215 of the link M. The latch (Fig. 5) engages a pin 100 on the latch arm, the pin being provided with a cranked handle 101 and having a rib 102 so that manual rotation of the crank 101 causes the rib to engage the latch and free the arms 47. In a further modification (see Group XXI), a scoop device is described, the scoop having means for maintaining itself in a vertical position, for use in earth-levelling operations.
Patent GB-887573-A (GB)
Title: Improvements in or relating to the production of alkylene oxide polymers
Inventor: WADDAN DHAFIR YUSUF
IPC: C08G65/08
Filed: 1959-09-25
Abstract: Olefin oxides are polymerized using as catalyst a compound of the formula M(OR)x(Hal)yRz where M is a metal of Group 2 or 3 of the Periodic Table, R is alkyl or aryl, Hal is halogen, x and y are integers, z is 0 or an integer, and x+y+z is the valency of M. Specified catalysts are aluminium diethoxy chloride, ethoxy dichloride and ethyl ethoxy chloride.  Alkoxy halides of zinc and magnesium are also mentioned.  The monomers are defined as having the formula <FORM:0887573/IV (a)/1> where R1 and R11 are hydrogen or hydrocarbon, R111 is hydrogen, hydrocarbon, halohydrocarbon, aryloxyalkyl, alkylaryloxyalkyl, or haloaryloxyalkyl, and R1 or R11 may be joined to R111 to form a cycloaliphatic ring.  Examples are epichlorhydrin, ethylene oxide, 1,2-propylene oxide, styrene oxide, cyclohexene oxide, and phenyl-, tolyl-, chlorphenyl- and naphthylglycidyl ether. Solvents may be present, temperatures may be from 0 DEG C. to 200 DEG C. and pressures up to 40 atmospheres. Purification of the polymer is described.  Uses: Thickening agents; films.  Specifications 785,229 and 793,065 are referred to.
Patent GB-727344-A (GB)
Title: Improvements in and relating to baffles and the like applied to ventilating, heatingand such like installations
IPC: F24F11/00
Filed: 1952-12-23
Abstract: 727,344. Automatic catches, pneumatically operated fasteners. BROWN, J. R. Dec. 14, 1953 [Dec. 23, 1952], No. 32683/52. Class 44. [Also in Group X] Louvres, pivotally arranged at the air intake, or exhaust end of an air duct, accommodating e.g. an electrically driven ventilating fan, are provided with a pneumatically operable locking device which is not vulnerable to unauthorized interference from outside the duct and which ensures a rigid locking action to prevent vibration noises. A lever 2, hinged at one end 5 to an arm 3 pivoted at its ends 6, 7 to louvres L<SP>1</SP>, L<SP>2</SP>, arranged across an opening in an air duct on the exhaust side of an electrically operated ventilating fan, not shown, has an inclined face 2a at its free end the lower part of which, when the fan is not operating, rests against the top edge of the louvre L<SP>1</SP> to lock the louvres in their closed position. A bell crank lever 4, hinged to the arm 3 at 6, has the free end 4a of its shorter arm radiused, or fitted with a roller, and a disc 4b on the end of the longer arm adjacent an air escape hole 8, covered by weathering W, on the louvre L<SP>1</SP>. When the fan is switched on, air passing through the opening 8, impinges on the disc 4b to rotate the lever 4 so that the end 4a imparts a kick to the lever 2 to raise it out of contact with the louvre L<SP>1</SP> and allow the louvres to be rocked, by the flow of air, into an open position. When the fan is switched off, the louvres close by gravity or alternatively by springs, not shown, and the inclined face 2a of the lever 2 drops into contact behind the top edge of the louvre L<SP>1</SP>. In alternative arrangements, the lever 2, or the trigger 4, or both, may be hinged to any convenient support of the duct or louvre frame. In a modification the lever 2 is operated by a vertical push rod carried by a projection 14 on the rear face of the louvre L<SP>1</SP>, axial movement being imparted to the push rod to raise the lever 2 by one end of a lever, pivoted near its centre to the base of the duct and having a disc at the other end adjacent to the air escape opening. When the louvres are fitted to the intake opening of an air duct, Fig. 5, the lever 2 is hinged to a projection 18 on the base of the duct 13 so that the end 2a coacts, when the fan is inoperative, with an abutment 11 on the louvre L<SP>1</SP>. When the fan is switched on air drawn into the duct through the opening 8, raises the lever 4, pivoted at 6c on the base outside the duct, a plunger 4a on the disc 4b coacting with the lever 2. In an alternative arrangement, Fig. 6, the lever 4 is replaced by a plunger 4c, sliding freely in centrally bored spiders in a cylinder 17 fitted on the outside base of the duct below the free end of the lever 2, and carrying a disc 4b on its lower end. In a further modification the lever 2 is hinged to the lower inside face of the louvre L<SP>1</SP>, the face 2a coacting with a projection on the base of the duct.
Patent GB-1458598-A (GB)
Title: Thermo-setting coating compositions
IPC: C09D125/04
Filed: 1974-07-24
Abstract: 1458598 Crosslinked methylacrylamide copolymers DESOTO Inc 24 July 1974 [30 July 1973] 32722/74 Heading C3P A thermosetting composition comprises (I) an interpolymer of N-methylolacrylamide, a monoethylenic carboxylic acid, one or more of styrene, vinyl toluene and methyl methacrylate as a "hard" monomer, and a C 4-24  alkyl acrylate or methacrylate and (II) an aliphatic polyol which is a reaction product of a polyol and a lactone, interpolymer (I) comprising 7-20% by weight of amide, a ratio of carboxyl to N- methylol functionality of 0À5 : 1 to 0À9 : 1, at least 50% by weight of the "hard" monomer and 3-20% of the ester and polyol (II) having a molecular weight of 350-5,000 and a hydroxy functionality of 2-4, the amounts of (I) and (II) providing a ratio of hydroxy to N-methylol functionality of 0À06 : 1 to 0À6 : 1.
Patent GB-605214-A (GB)
Title: Improvements in or relating to automatic sheet-feeding apparatus
IPC: B65H1/30
Filed: 1945-12-04
Abstract: 605,214. Feeding sheets. TEBBS, G. W., and H. T. B., Ltd. Dec. 4, 1945, No. 32747. [Class 100(i)] To replenish a pile of sheets carried by chains 1, which are raised automatically to feed position, without stoppage of the feed, an auxiliary pile-raising means is provided which is brought into action to enable the pile board 2 to be lowered to receive a fresh supply of sheets. The pile P is supported while the board 2 is lowered by means of a pile transfer table 7 which is carried by four brackets 9 pivoted to two sets of chains 5 moving in closed orbits adjacent to the pile edges, and by two similar sets of chains 6 arranged as shown in Fig. 1. The chains 5, 6 are controlled by hand or automatically to move the transfer board 7 quickly in a horizontal direction between the pile board 2 and a pile-protection board 10 with a bent edge 11 to guide the board 7 into position without injury to the sheets, or a pair of protection boards may be used and the board 7 guided to move between them. To ensure that the board 7 moves in a strictly rectangular path the brackets 9 are pivotally attached to the transfer board at points spaced inwardly from the pitch lines of the chains 5, 6 by a distance equal to the radius of curvature of the path of the pitch line of the chain where it passes round the wheels or guides 8. The chains 5, 6 raise the pile at the same rate as the chains 1 normally do while these are being lowered to receive a new pile. The board 7 is finally withdrawn rapidly prior to the transfer of the feed to the chains.