baber/WOPTO huggingface dataset:
Patent GB-1407711-A (GB)
Title: Mixer-refiner
IPC: D21B1/06
Filed: 1973-03-09
Abstract: 1407711 Cylindrical refiners; disc mills; mixing apparatus E H CUMPSTON JNR 9 March 1973 11553/73 Headings B1C and B2A The description is identical with that of Specification 1407712 but the claims are directed to the construction of the rotor and stator which comprise a plurality of hardtoothed blocks which are sized for interchangeability and have different orientations of teeth.
Patent GB-870333-A (GB)
Title: Carbon dioxide pressure reducing method and apparatus
IPC: F17C7/04
Filed: 1960-04-01
Abstract: 870,333. Storing gases under pressure. AIR REDUCTION CO. Inc. April 1, 1960 [April 3, 1959], No. 11669/60. Class 8(2). A carbon dioxide container (not shown), is charged to a service pressure below 75 p.s.i. from a container 10 at a pressure of about 800 p.s.i. by first expanding at a valve 13 the high pressure gas down to an intermediate pressure above that at which solidification can occur e.g., 80 to 300 p.s.i., heating the expanded gas to a temperature above that at which solidification can occur on expansion at a valve 14 to the service pressure e.g., by passing it through a finned duct 16 leading to the valve 14 whereby the gas temperature is raised from between -67‹F. and 0‹F. to between - 60‹F. and 40‹F.
Patent GB-271436-A (GB)
Title: Improvements in and relating to automobile accelerator pedals for the safety lockingthereof
IPC: G05G5/06
Filed: 1927-05-02
Abstract: 271,436. Burns, J. H., (Assignee of Hardy, W. J.). May 20, 1926, [Convention date]. Retaining devices for controlling apparatus. - The accelerator pedal, when released by the driver, is locked in closed position by a latch which is automatically projected to engage the pedal but can be retracted by the driver when he wishes to depress the pedal again to open the throttle. In the construction shown, a sliding pedal or plunger 12 is formed with a shoulder 13 which is engaged, when the pedal is in the top or " shut " position shown, bv a notch 10 on one arm of a spring-controlled bell-crank lever 9, the other arm 14 of the lever being actuated through a crank 16, shaft 17, and pedal 20 by the driver when he wishes to release the accelerator pedal. When the accelerator pedal has been depressed the enlarged part of its stem above the shoulder 13 slides past the notch 10. A modification is described in which the accelerator pedal is of the oscillating type.
Patent GB-1343672-A (GB)
Title: Process for the preparation of alkali metal silicate compositions
IPC: C01B33/32
Filed: 1971-04-28
Abstract: 1343672 Alkali metal silicate compositions HENKEL & CIE GmbH 28 April 1971 [29 April 1970] 11763/71 Heading C1A [Also in Division C4] Solid water containing alkali metal silicate compositions are prepared by adding 0À1 to 5% by weight of a water-soluble mono- and/or polyquaternary nitrogen compound to an alkali metal silicate solution and reducing the water content to 11 to 20% by weight by drying the resulting compositions having a content of quaternary nitrogen compounds. The drying may be by roller drying or spray drying. The, quaternary nitrogen compound which is added in the form of hydroxide, chloride, sulphate or nitrate, preferably contains alkyl residues having 1 to 8 carbon atoms attached to the nitrogen atom.
Patent GB-915798-A (GB)
Title: Improvements in the production of dicarbonyl compounds
Inventor: WERBER FRANK X
IPC: C07C49/403
Filed: 1961-03-30
Abstract: Alpha dicarbonyl compounds are obtained by oxidising, in the liquid phase, carbonyl compounds, which contain a methylene group adjacent to the carbonyl group, with ozone in presence of a selenium catalyst e.g. selenium dioxide or elemental selenium. The reaction mixture may contain an inert solvent or diluent e.g. water, and the oxidation may be effected at -5 DEG  to +90 DEG C. Carbonyl compounds which may be used in the process include methyl ethyl ketone, diethyl ketone, methyl benzyl ketone, cyclopentanone, and methyl cyclohexanone. Aldehydes of the type -CH2-CHO may also be used.  Examples describe the production of diacetyl from methyl ethyl ketone, and of cyclohexane-1,2-dione from cyclohexanone, (adipic acid being also obtained).
Patent GB-745302-A (GB)
Title: Improvements relating to coils for electrical apparatus
Inventor: MORGAN JOHN WILLIAM HAROLD
IPC: H02K3/22
Filed: 1953-04-29
Abstract: 745,302. Conductors for dynamo-electric machines. ENGLISH ELECTRIC CO., Ltd. April 23, 1954 [April 29, 1953], No. 11825/53. Class 35. Each separate large-section turn of a winding has a substantial gap between its ends and the separate turns are connected together by a separate joint piece inserted in the gap, the joint pieces having a central cranked portion and oppositely extending end portions displaced from each other by an amount equal to the pitch between the turns. As shown, 21, 22 denote the cranked joint pieces which have narrow central portions 21a, 22a and slotted ends 26 with chamfered edges brazed to the likewise chamfered portions of the turns 29a, 29b, 30a, 30b, &c., the assembly also including coil end pieces 20 and 23 cut away at 20a, 23a, respectively and insulators 31 disposed as in Fig. 2, together with further insulator 27. The insulators 31 have slots 32 to align with slots 26 interlinking the axial ducts in the hollow conductors 28a-30b. Coil connections 24 and 25 are brazed to the coil end pieces 20, 23 respectively.
Patent GB-336983-A (GB)
Title: Improvements in and relating to the manufacture of dyestuffs and dyestuff intermediates
IPC: C09B49/12
Filed: 1929-04-16
Abstract: 336,983. Smith, W., Hooley, L. J., Thomas, J., and Scottish Dyes, Ltd. April 16, 1929. Samples furnished. Flavanthrone; 1:1<1>-dianthraquinonyl derivatives.-1 :1<1>-Dianthraquinonyls containing chloro, bromo, or sulphonic acid groups in the 2 : 21- positions are condensed with substances containing reactive hydrogen atoms. The latter may be selected from ammonia, aliphatic amines, for example, monomethylamine, aromatic amines. for example aniline, aminoanthraquinones: phenols, substances in which the reactive hydrogen is attached to sulphur as mercaptans, alkali salts of the latter types wherein alkali metal replaces the reactive hydrogen atom, for example sodium phenate. When ammonia is used condensation is followed by ring closure of the 2 :2<1>- diamino-1 : 1<1>-dianthraquinonyl to yield flavanthrone. Condensation may be carried out with or without solvents or diluents, catalysts, or acid-absorbing substances'. In examples, the production of flavanthrone from these starting materials is described, and also the treatment of the 2 : 2<1>-dichloro-derivative with aniline to give a 2 : 2<1> - dianilido-1 : 1<1>-dianthraquinonyl, with methylamine to give a 2 : 2<1>-dimethylaminoderivative, with 1-aminoanthraquinone, with phenol to give a 2 : 2<1>-diphenoxy derivative, with calcium hydroxide and calcium chloride to give a 2 : 2<1>-dioxy derivative, and with potassium sulphide in alcohol; treatment of the 2 : 2<1>-dibromo-1: 1<1>-dianthraquinoyl with sodium sulphide and sulphur in aqueous alcohol to yield a 2 : 2<1> - dimercapto derivative which readily oxidizes to disulphide compounds. The starting materials for the present process may be made according to the method of Specification 336,982.
Patent GB-632324-A (GB)
Title: Improvements in laminated springs
IPC: F16F1/18
Filed: 1947-05-02
Abstract: 632,324. Springs. FOX & CO., Ltd., S., and HAMPSHIRE, E. May 2, 1947, No. 11862. [Class 108 (iii)] An auxiliary spring 11, Fig. 1, of one or more leaves, is unaffected by small deflections of its associated main laminated spring 7, but is engaged thereby on larger deflections, whether under overload or rebound conditions. The main spring 7, which may be of the construction described in Specification 320,346, [Class 108 (iii)], is embraced by an inverted U-shackle 14 carried in the diametrically-bored ends of a pin 13 mounted in the eye 12 of the spring 11. There is a space between the uppermost leaf and the transverse bar of the shackle, and between the eye 12 and the lower side of the spring 7, so that on a predetermined deflection either the eye 12 or the shackle 14 engages the spring 7. The shackle is held upright by a set-screw passing through the eye 12 and engaging the pin 13. In a modification, Fig. 3, the shackle is adjustably held in clamping plates 16, 18 at the end of the auxiliary spring 21; the upper plate 18 carries a rubber buffer 19 to engage the main spring. Where the auxiliary spring has two leaves, the plates 18, 16 are respectively riveted to the upper and lower leaves, and the shackle 14 is carried by the plate 16. The shackle may be formed of flat plate, its base being riveted to the auxiliary spring and its ends formed by a rubber-covered bolt adapted to engage the main spring, Fig. 6 (not shown). The auxiliary spring may be disposed above the main spring.
Patent GB-342961-A (GB)
Title: Improvements in devices for raising and lowering the stirring arm in gas producers
IPC: C10J3/34
Filed: 1930-04-15
Abstract: 342,961. Gas producers. POETTER, F., 5, Cecilienalle, and POETTER GES., 19, Grabenstrasse, both in Dusseldorf, Germany. April 15, 1930, No. 11892. [Class 51 (ii).] Relates to a device for adapting the height of the stirring arm of a gas producer to the changing height of the fuel, of the kind in which the stirring arm is periodically raised by a positively acting device and then released to descend under the action of gravity. As shown in Fig. 3, a shaft 2 carrying a stirring arm 4 is rotated by means of a worm wheel 6 slidably keyed to the shaft. On the upper end of the shaft is mounted an externally screw-threaded sleeve 9 rotatable but not slidable on the shaft. The sleeve engages an internally screw-threaded nut 12 rotatable in fixed bearings 13 and carrying a ratchet wheel 14. On the nut is supported a ring 15 with an arm 16 carrying the ratchet pawl 17 and oscillated from the shaftdriving mechanism. In operation, a forward oscillation of the ratchet arm rotates the nut 12, and the sleeve 9 and shaft 2 are thereby raised; on its return movement a plate adjustable as desired on a stationary part of the apparatus removes the pawl from the ratchet wheel thus allowing the shaft 2 to fall under gravity as far as the fuel permits. The nut 12 may also carry a friction disc 25 engaged by a friction pawl 26 acting in the reverse direction to the pawl 17 thus assisting the downward movement of the shaft when the pawl 17 is disengaged. In a modification, Fig. 6, teeth 29 formed on the shaft 2 are engaged by a toothed wheel 30 mounted on a shaft 31 carrying a ratchet wheel 14 actuated by a pawl 17. A friction disc 25 and friction pawl 26 may be included. In a further modification, Figs. 7 and 8, the upper end of the shaft 2 carries a partly cut away screw thread 43 which engages in a similar thread 45 in a nut 44. When the thread elements are in mesh, the rotation of the shaft causes it to be raised. The leading ends of the threads 43 are pointed to facilitate entry into the threads 45 and preferably the nut 44 is held in a casing 41 by bevelled teeth 47 projecting into bevelled recesses 49 allowing an upward movement of the nut should the resistance to the entry of the threads 43 into the threads 45 be great.
Patent GB-1276075-A (GB)
Title: Devices for temporarily sealing pipes
Inventor: THEWLISS CHARLES
IPC: F16L55/163
Filed: 1971-04-28
Abstract: 1276075 Pipe stoppers AMW CONSTRUCTION CO Ltd 28 April 1971 11920/71 Heading F2P A device for temporarily stopping a pipe comprises a ring shaped frame 13 (Fig. 1) comprising two semicircular members 15, 16 hinged about axis 22 by hinge 21. The handle 14 comprises two halves 23, 24 hinged about axis 22 at 25, each half being secured to a semicircular member by a pin 31 riding in slot 30. The lower ends of the handle halves are connected by pivotal links 32 to members 15 and 16. A flexible diaphragm 11 and a sealing ring 12, e.g. of rubber, are secured to the frame and may be integral or separate. The stopper is folded along axis 22 for insertion through a small hole in a pipe-line wall and then unfolded to the form shown, the bar 35 being pivoted down to engage the handle ends 27 and prevent refolding about axis 22. Downward pressure on the handle forces pins 31 apart and thereby forces the frame halves 15, 16 apart to engage seal 12 with the internal wall of the pipe. The handle is held against return by toggle action of links 32. In an alternative embodiment (Fig. 2) (not shown) the lower ends of the frame halves are unconnected and the slots 30 are parallel. The hinge pin of the handle is constituted by a screw (43) which is adapted to bear on the outside wall of the pipe to be stopped. In this case raising of the handle (14<SP>1</SP>) by rotation of the handle (42) causes expansion of the seal, a toggle action once again preventing return of handle (14). In a further embodiment the frame may be composed of four part ring shaped members (i.e. into a quadruple thickness quarter ring) for insertion through a hole in a pipe wall.
Patent GB-1046050-A (GB)
Title: Improvements in mattresses and the like
Inventor: ORMEROD GEORGE ERIC
IPC: A47D7/00
Filed: 1964-06-02
Abstract: 1,046,050. Mattresses. ERIC ORMEROD Ltd. March 17, 1965 [June 2, 1964], No. 11948/66. Divided out of 1,046,048. Heading A4M. The subject matter is identical with that of Specification 1,046,048, but the claims differ.
Patent GB-1345037-A (GB)
Title: Storage unit
IPC: A47B81/00
Filed: 1971-04-28
Abstract: 1345037 Racks BENDIX CORP 28 April 1971 [28 April 1970] 11976/71 Heading A4H [Also in Divisions B3 and B8] A rack for storing piston rings, e. g. between grinding processes, comprises a helical coil on to which the rings are threaded. The helical coil 12 is horizontal. It has a free end 22 tangential to the coil 12, for receiving the rings 120, the other end segment 24 being secured within a groove (26) Fig. 5, (not shown) in a plate 28 by releasable clamps (30). Segment 24 and plate 28 can be rotated as a unit about the axis of bearing (32) Fig. 5 (not shown) by rotating a threaded rod (36) Fig. 4, (not shown) by means of a socket (50), said rod being pinned to plate 28. Rings 120 received on end 22 are advanced along the coil by rotating wiper blades 64. Wiper blades 64, including rollers 66 for supporting the coil, are secured to a cylindrical drum 52 within coil 12 and rotatable in bearings 54, 56. Drum 52 is driven by a reversible D.C. motor 104, a variable speed drive 106, and a chain and sprocket mechanism 110, (114), 112. A limit switch 116 with leaves 118 engages advancing rings and discontinues the wiper drive and/or feed machinery. During discharge of the rings, with the motor reversed, the right hand end of the coil may be raised by connected jacks 98, 100. The rack may include fixed castors 90, 92, movable castors 94, 96 with foot brakes, a handle 76, and a drip pan 102 for oil from the rings.
Patent GB-720945-A (GB)
Title: Apparatus for supervising the relative positioning of the pusher machines and coke-guide machines of horizontal coke-oven batteries
IPC: C10B41/02
Filed: 1953-04-30
Abstract: 720,945. Discharging coke ovens. KOPPERS GES., H. April 30, 1953, [May 2, 1952.] No. 11990/53. Class 51 (2). In a horizontal coke-oven battery having a coke-pusher machine on one side and a cokeguide machine on the other a telephone link extends between the two machines to enable the operators to communicate with one another verbally. The telephone link may comprise a radio transmitter and a radio receiver on each machine, preferably operating on a frequencymodulated V.H.F. system, and a signalling device may be fitted on each machine, when the radio transmitters and receivers are furnished with two channels, one carrying speech and the other carrying signalling impulses. Where the machines are provided with electrically-operated signalling devices for indicating the relative positions of the machines, the telephone link may comprise a transmitter and a receiver on each machine connected to the electric circuit carrying signalling impulses between said signalling devices, and at each end is arranged means for segregating signalling impulses and speech currents and for feeding these respectively to the signalling devices and the receivers. The transmitters and signalling devices impress modulated carrier oscillations of different frequencies on the circuit, appropriate electrical filter circuits being employed to segregate the signalling impulses and speech currents.
Patent GB-691027-A (GB)
Title: Improvements in or relating to electromagnetic friction clutches
IPC: F16D27/06
Filed: 1948-07-16
Abstract: 691,027. Friction clutches. SEDGFIELD, H. B.; SUMMERLIN, F. A., KYTE, G. H., and SPERRY GYROSCOPE CO., Ltd: July 13, 1949 [July 16, 1948], No. 12078(51. Divided out of 690,982, [Group. XXXV]. Class 80 (ii). In an electromagnetic friction clutch, for a servo system, wherein throughout the whole range of values of. excitation, the hardened and lubricated friction surfaces 20, 19<SP>1</SP> of the driving and driven members 14, 15 are permanently in contact, but slipping, at least one of the said surfaces is serrated or grooved, as at 51, in such a, way that the transmitted torque varies smoothly and stably with the exciting current throughout the said range. As shown the grooves 51 on both surfaces are oblique, both circumferentially and to each other, and they reduce the contact area, by approximately a half. After grooving and honing, the.surfaces may be electro-plated 0.0005 inch thick with a hard wearing non-magnetic material such as rhodium, over 0.00015 inch thickness of nickel or copper, providing in effect a gap in the magnetic circuit and producing an air gap of similar total thickness between the unplated centre of the disc 15 and the inner core 18 of the annular driving pot member 14, the remaining magnetic circuit being of high-permeability material. Both members 14, 15 are freely mounted on a fixed centre-post 22, the driving member 14 being constantly driven through peripheral gear-teeth. The driven disc 15, which makes only a limitedturning movement in either direction from a central idle position for opera'ting the stem 49 of a hydraulic servo valve/as described in Specincation 690,982, [Group XXXV], is in permanent slipping friction contact with the driver 14 and is maintained in the central idle position by the opposition of a tension spring 44 to the slip-torque produced when the winding 12 is energised at a steady value. Receipt of a positive signal from an electronic control amplifier increases the excitation, increasing the slip-torque which turns the driven disc 15 through a small angle counterclockwise until again balanced by the spring 44, thus lifting the valve stem 49, whilst receipt of a negative signal reduces the excitation and thus the slip-torque, permitting the spring 44 to turn the disc 15 clockwise to depress the valve-stem 49. Specification 230,488, [Class 80 (ii)], is referred to.
Patent GB-720320-A (GB)
Title: Shank button feeder for button sewing machines
Inventor: TROLL WILLIAM ALBERT
IPC: D05B3/16
Filed: 1952-05-13
Abstract: 720,320. Feeding buttons. EMSIG, M., EMSIG, S., EMSIG, J., and SUCHER, J. R., [trading as EMSIG MANUFACTURING CO.]. May 13, 1952, No. 12094/52. Class 78 (1). [Also in Group VII] A button feeding device, Fig. 7, comprises a feeder pawl 49 which engages the shanks of buttons B positioned side by side in a shoot 19. As shown, shoot 19 is connected to lift-bar 12 so that when the latter is periodically elevated by foot pedal chain pull 14, the pawl 49 is pushed down to engage and push forward a button to be sewed on to fabric F by needle. Thus, pawl 49 is pivoted at 45 to lever 38 and is impelled by spring 47 to engage pin 52, and lever 38 is pivoted at 39 to shoot 19 and carries adjustable abutment 42 so that when the said lift-bar 12 causes the elevation of shoot 19 the abutment 42 rises to strike frame 2 and, by rotating lever 38, forces pawl 49 against pin 52 so that the pawl performs the requisite movement to push the button towards the needle S which then descends to sew the button to cloth F. The buttons are fed to the shoot 19 from hopper H, Fig. 11, which is provided with a spider having a slot 75, the buttons passing from the hopper through openings 77 into the slot and the slot feeding the buttons in the correct orientation to the shoot 19. The spider is driven by coiled spring belt 72 to allow slip. The shoot 19 is formed of flexibly articulated sections 20, 21 and 22, Fig. 1 (not shown).
Patent GB-778190-A (GB)
Title: Improvements in or relating to bistable electric apparatus including saturable core inductors
Inventor: FERRANTI BARRY ZANI DE
IPC: H03K3/49
Filed: 1954-04-27
Abstract: 778,190. Ferro-resonant circuits. GENERAL ELECTRIC CO., Ltd. July 27, 1955 [April 27, 1954], No. 12227/54. Class 40 (4). A ferro-resonant flip-flop includes saturable inductors 7, 8 and saturable capacitors 9, 10 arranged in two parallel limbs across a 250 kc/s. supply on terminals 1, 2. Each limb is tuned to the supply frequency when both reactor elements thereof are saturated. The circuit is stable with one limb saturated and the other unsaturated and is changed from one side to the other by successive position pulses on terminal 19. When limb 7, 9 is saturated, the highvoltage across saturated capacitor 9 is rectified at 13 to provide a signal on terminal 24. This voltage is in opposition to the next positive pulse on terminal 19 so that a greater current flows in control winding 12 than in control winding 11, limb 8, 10 becomes saturated and limb 7, 9 de-saturates. The inductors 7, 8 may be constructed as described in Specification 778,191, [Group XXXV]. The inductor and the capacitor of a limb may be connected in parallel.
Patent GB-1510191-A (GB)
Title: Pressure-responsive valve in or for a cannula assembly
IPC: F16K7/17
Filed: 1975-03-24
Abstract: 1510191 Valves SANDOZ Ltd 24 March 1975 [27 March 1974] 12253/75 Heading F2V A pressure responsive valve for a cannula assembly, comprises a housing having first and second ducts 226, 230 each having a respective end 234, 238 terminating in the housing, a first diaphragm 218 affixed within the housing and a second diaphragm 240 movable conjointly with the first diaphragm. In use, when atmospheric or other reference pressure acting on the outer surface of diaphragm 240 exceeds the pressure in the ducts, the diaphragm 218 is moved to seat against the terminations 234, 238 and thereby close the flow path. In an alternative embodiment, Fig. 3 (not shown), the first diaphragm is connected via a stem (324) to a closure plate (342) co-operable with downwardly-facing duct terminations whereby, in use, the flow path is instead closed by the plate when the duet pressure exceeds the atsmopheric pressure.
Patent GB-289413-A (GB)
Title: Improvements relating to fuel injection devices for internal combustion engines
IPC: F02M57/02
Filed: 1928-04-26
Abstract: 289,413. Groff, J. C. April 26, 1927, [Convention date]. Lever-actuated pumps; speed and stroke, varying.-A liquid pump for an internal-combustion engine comprises a plunger 12, the speed of which can be varied by adjusting the position of the fulcrum 29 of a slotted lever 28 which is oscillated by a connection 27 with a crank-shaft and drives a connecting rod 34, carried by a pivoted link 35. The fuel is delivered at the middle of the stroke of the plunger 12 and the amount is regulated by varying the timing of the opening of a ,suction by-pass valve 47.
Patent GB-332556-A (GB)
Title: Improvements relating to gas cylinders and like hollow metal containers
IPC: F17C1/00
Filed: 1929-04-22
Abstract: 332,556. Chesterfield Tube Co., Ltd., and Hill, S. B. N. April 22, 1929. Bottoms.-A base member a for a gas cylinder &c. is formed with an aperture fitting on the pip f projecting from the cylinder, and being secured to it. The outside of the base member is of the same diameter as the cylinder, and engages it near the top of the hemispherical end, which may be formed by hammering down a tubular blank.