baber/WOPTO huggingface dataset:
Patent GB-1355401-A (GB)
Title: Thermosetting bis-imide reaction products
IPC: C08G59/40
Filed: 1971-06-25
Abstract: 1355401 Glass fibre laminates RHONEPOULENC SA 25 June 1971 [26 June 1970] 29950/71 Heading B5N [Also in Division C3] A resin is the reaction product of (a) an unsaturated bis-imide wherein D is a divalent radical containing an ethylene double bond and A is a C 2-30  divalent radical in an amount of 0À55 to 25 mols per molar NH 2  group of (b) a polyamine R(NH 2 )x where x is at least 2 and R an organic radical and (c) a monomer containing at least one group not conjugated to another such group which is an ester (but not a polyesterification polymer), ether, hydrocarbon, substituted heterocyclic compound, organo-metallic compound or organo-phosphorus, -boron or -silicon compound. Keactants (a), (b) and (c) may be heated together, e.g. at 50 to 180 C., until a homogeneous liquid is obtained or a prepolymer of (a) and (b) may be formed before adding (c). The reaction products may be prepared in the presence of the catalysts usually employed in the polymerization of (c). They may be compounded with the polycyclic aromatic compounds described in Specification 1,260,819. Extensive lists of suitable reactants are given. The reaction products may be used in solution to prepare fibrous laminates and subsequently cured at 100 to 280 C. In Example 2 the liquid reaction product is used to coat a glass fibre fabric pretreated with γ-aminopropyltriethoxysilane rectangular pieces of which are then laminated at 15 kg/cm.<SP>2</SP> and 120 to 200 C. over 1 hour and 1 hour at 200 C. In the other examples articles are cast from the liquid reaction product. Reference is made to Specifications 1,355,403, 1,190,718 and 1,137,592.
Patent GB-244264-A (GB)
Title: Improvements in tube and bobbin holders for winding, spinning, twisting and like frames
IPC: B65H54/54
Filed: 1924-12-13
Abstract: 244,264. Boyd, T. A., Boyd, H. A., and Boyd, Ltd., J. & T. Dec. 13, 1924. No Patent granted (Sealing fee not paid). Winding-machines; spindle apparatus. - The spindles of winding, spinning, twisting, and like frames are provided with segments 4, loosely mounted in a holder 2 in a plane at right angles to the spindle and provided with serrations on their outer surfaces, so as to engage and drive the bobbins or tubes by centrifugal force. Pins mounted in holes 5 engage slots in the segments to retain them in position. Specification 11387/13 is referred to.
Patent GB-862776-A (GB)
Title: Improvements in or relating to moving-coil loudspeakers incorporating a permanent magnet
Inventor: PEARCE WALTER THOMAS
IPC: H04R9/02
Filed: 1958-09-19
Abstract: 862,776. Loud-speakers. PLESSEY CO. Ltd. Sept. 18, 1959 [Sept. 19, 1958], No. 30012/58. Class 4C (4). [Also in Group XXXV] A moving-coil loud-speaker comprises a top plate 5 secured by a press fit in a pot-shaped magnet yoke 1, which has an external shoulder 7, and a chassis 8 having a central hole which fits over the yoke 1 so that the chassis rests against the shoulder 7. The chassis 8 is held in place by deformation of at least part, such as stags 9, of the portion 6 of the yoke 1 projecting above the chassis. The top-plate 5 has two parallel straight edges 10 so that it may be made from a strip of a width less than the internal diameter of the yoke 1.
Patent GB-612613-A (GB)
Title: Improvements in hydraulic couplings
IPC: F16D33/12
Filed: 1945-11-12
Abstract: 612,613. Hydraulic couplings. CLERK, R. C. Nov. 12, 1945, No. 30148. [Class 69 (ii)] In a hydro-kinetic coupling of the kind in which the reservoir for the operating liquid is provided within the rotating casing 4 of the coupling, direct and free communication between the vortex chamber formed between the opposed impeller 1 and runner 8 and the reservoir 21 is established through a continuous uninterrupted aperture 19 provided at the centre of the impeller around the shaft 11 of the runner. The impeller is provided with a fixed, or, as shown in Fig. 2, an automatically adjustable weir ring 25 which permits the operating liquid to move freely into the reservoir under starting conditions, and also with ports 24 which automatically return the liquid to the vortex chamber when the impeller is rotating at or above a predetermined speed. The ports 24 may be controlled by a form of centrifugally-operating valve.
Patent GB-1481705-A (GB)
Title: High-power explosive charge and method of producing same
IPC: C06B25/32
Filed: 1974-07-08
Abstract: 1481705 Explosive compositions and charges MESSERSCHMITT - BOLKOW - BLOM GmbH 8 July 1974 [14 July 1973] 30171/74 Heading C1D An explosive charge is produced by mixing 85-95% by weight of granulated high explosive of varying grain size with 2-12% by weight of a liquid polymerizable binding agent, and moulding the mixture under a gauge pressure of 500-5000 Kg/cm<SP>2</SP>, followed by hardening the binder at a temperature not more than 100‹ C. The high explosive may be hexogen, octogen, or PETN. Also included may be up to 13% by weight of a desensitizing agent, for example a wax or a stearate; a solution or dispersion of the desensitizing agent in an organic solvent may be contacted with granules of the high explosive, followed by removal of the solvent. In examples, octogen is mixed with a polyester resin or with a polyurethane; paraffin wax may be present as desensitizer. The charges formed have higher density and higher compressive strength than charges moulded at a lower pressure.
Patent GB-449316-A (GB)
Title: Rectifier for wireless television reception
IPC: H04N5/08
Filed: 1934-10-22
Abstract: 449,316. Thermionic valves; circuits for wireless reception. RADIOAKT.- GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Berlin. Oct. 22, 1934, No. 30180. Convention date, Oct. 23, 1933. [Classes 39 (i) and 40 (v)] In a detector for television in which loss of high-frequencies is prevented by the use of a low value of grid-leak, the sharpness ot contrast m the white-to-black change-over is increased by the use of an amplitude dependant grid resistance. Fig. 3 shows the use of an electronic tube 13, so that the discharge rate increases more rapidly than the amplitude of the control potential. Alternatively, a glow lamp with a cold cathode or a hot cathode which may be indirectly heated may be used. In the latter case the construction is such that the cathode-earth capacity is as small as possible. With the glow lamp a suitable working point may be obtained by adjusting the ignition point by an auxiliary potential. The detector electrodes may be mounted as shown in Fig. 4 in the same vacuum container as the electron device with a common heating element which is very thin, while the cathode of the electronic device and the grids have the leads out widely separated. Specification 447,401 is referred to.
Patent GB-1134236-A (GB)
Title: Improvements in or relating to devices for proportioning and mixing liquids
Inventor: SMITH ALAN EDWIN
IPC: B01F3/08
Filed: 1966-07-06
Abstract: 1,134,236. Liquid dosing apparatus. B.P. CHEMICALS (U.K.) Ltd. 28 June, 1967 [6 July, 1966], No. 30250/66. Heading B1C. In an apparatus for mixing liquids in a required ratio, chamber 2 is discharged when the level therein rises to a height sufficient to prime siphon 4, whereby suction in the common discharge pipe primes siphon 3 to discharge chamber 1 which has been filled to a predetermined level by float valve 8. A float valve in the mixture storage tank 6 initiates supply of liquid to chamber 2 when the level in tank 6 falls.
Patent GB-448982-A (GB)
Title: Speed recording apparatus for vehicles
IPC: G01P1/12
Filed: 1935-11-01
Abstract: 448,982. Speed - recording devices. MORF, E., 8, Chemin de Pouillerel, La Chauxde-Fonds, Switzerland. Nov. 1, 1935, No. 30281. Convention date, Nov. 6, 1934. [Class 106 (iii)] A record of the speed of a vehicle during successive stages of travel is alternately marked on a rotating dial 10 and effaced. The dial 10 mounted on peripherally-arranged rollers 101 may be driven from a vehicle wheel through a one-way pawl-and-ratchet drive, or from an independent drive, and the record on the dial is made on the front or observer's side thereof by a stylus 14 moved radially in accordance with the speed. A rotating cylinder 13 lined with slightly compressible material such as buckskin and driven from the same drive as the dial effaces the record periodically. The carrier of the stylus and the gear for the effacing cylinder project through a central toothed opening in the dial. The effacing cylinder may be replaced by a disc. In a modification, a drum is substituted for the dial. A speedometer pointer may move round the dial, suitable graduations being provided on an outer ring. The dial and stylus may be made of celluloid and soft pencil respectively, or of slate. The effacing cylinder may be of porous material which is periodically immersed in a suitable liquid. Specification 269,691, [Class 106 (iii)], is referred to. The Specification as open to inspection under Sect. 91 comprises also a statement that the record may be made on a transparent sheet fixed locally by the stylus on a waxed surface, the effacing being done by detaching the sheet. This subject-matter does not appear in the Specification as accepted.
Patent GB-692643-A (GB)
Title: A new or improved invalid's bedstead
IPC: A61G7/02
Filed: 1950-12-12
Abstract: 692,643. Invalids' bedsteads. ARMSTRONG, J. R. March 11, 1952 [Dec. 12, 1950], No. 30314/50. Class 52(ii) An invalid's bed comprises a pair of fixed side rails 5. head and foot ends 3, 4,. a mattress frame 6. 12 slidable longitudinally on the fixed side rails 5 a tray 7 with bed pan aperture 8 slidable longitudinally in grooves 15 on the fixed side rails, the tray 7 having means whereby it may be locked in any desired position. When the mattress frame carrying the patient, mattress and bedding is moved away from the head end 3 the tray 7 is exposed so that the patient may be moved on to a bed pan on the tray 7 which may then be slid towards the head end 3 to enable the patient to assume a sitting position with his legs downwardly disposed between the tray 7 and the mattress frame 6, 12. The mattress frame is provided with rollers 10 for displacement of its frame while the fixed rails 5 are provided with rollers 9 which help to support the mattress frame and also act as limiting stops. The foot end of the bed may be provided with a vertically adjustable castor assembly 11.
Patent GB-654808-A (GB)
Title: Improvements in or relating to rotary circulating pumps
IPC: F04C2/344
Filed: 1948-11-23
Abstract: 654,808. Rotary pumps. LANGDON, A. G. Nov 23, 1948, No 30407. [Class 110(ii)] In a pump with roller vanes having a metal core provided with a coating of rubber or the like, at least two of the vanes 8 are preferably spring- pressed outwards so that the pump operates at slow speeds. Slots 9 may be provided so that liquid in advance of a vane presses underneath the vane. The slots 5 may be V-shaped with curved bottoms.
Patent GB-464907-A (GB)
Title: An improvement relating to hoisting and like means
IPC: B66D1/14
Filed: 1936-11-09
Abstract: 464,907. Yielding couplings. CLARKE, CHAPMAN, & CO., Ltd., WOODESON, W. A., and MIDGLEY, W. Nov. 9, 1936, No. 30480. Addition to 464,099. [Class 80 (ii)] [Also in Groups XXVI and XXX] The apparatus according to the parent Specification is provided with means by which it can be ensured, if desired, that the yielding drive is automatically put out of action after the spring 3 has been wound up. As shown, the barrel 1 is formed with a ring of ratchet teeth 10 with which co-operates a spring-pressed pawl 11, the arrangement being such that when the spring has been wound up and the direct drive established by the lugs 7, 8 and arm 9, the barrel 1 is locked against return movement relatively to the driving wheel 2. Screw and nut adjusting devices 15, 16 are provided to permit the pawl 11 to be held out of operative position when the locking of the barrel to the driving wheel is not desired.
Patent GB-1390895-A (GB)
Title: Conjunctival device
IPC: F27B14/00
Filed: 1973-06-27
Abstract: 1390895 Moulding vessel bases COCKERILL OUGREE - PROVIDENCE & ESPERANCELONGDOZ EN ABREGE COCKERILL 27 June 1973 [29 June 1972] 30619/73 Heading B5A [Also in Division F4] A metallurgical vessel (e.g. a ladle used for teeming steel) having a metal shell comprising a lateral wall and a base is provided with bottom lining by tamping raw refractory sand into the bottom of the shell in a series of annuli and into the remaining central space. The process comprises (a) placing on the shell's base a pattern whose peripheral contour is of substantially the same shape as but of smaller size than the peripheral contour of the base, filling the annular space so defined with sand, tamping the sand and removing the pattern, (b) forming a series of similar tamped sand annuli using successively smaller patterns and (c) tamping sand into the remaining central space. All the patterns are of the same depth. The degree of compaction of the sand is made homogeneous throughout the base. As shown, the innermost pattern 4 is in position. Each pattern may be of sheet steel and comprises a removable wedge shaped insert (3), Figs. 1a and 1b (not shown), bolted to the remainder of the pattern. The pattern for defining the outermost annulus has a recess (2) to receive the seat 14 of a teeming nozzle. Loose sand can be spread over the tamped sand to prevent peeling of the bottom during drying.
Patent GB-333447-A (GB)
Title: Improvements relating to dye jigger machines
IPC: D06B3/32
Filed: 1929-10-09
Abstract: 333,447. Associated Dyers & Cleaners, Ltd., and Crick, H. J. Oct. 9, 1929. Jigger machines. - In a dye-jigger, a cylindrical &c. float H in the dye liquor counteracts or takes up the tensional stress imposed on the material at each change in the direction of travel thereof. Guides K ensure that the float shall have vertical displacement only.
Patent GB-650921-A (GB)
Title: Spinning regulators for textile ring spinning machines
IPC: D01H1/36
Filed: 1948-11-26
Abstract: 650,921. Speed control mechanism for textile ring spinning machines. JANSO, A., SAND, J. A., and ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Nov. 26, 1948, No. 30733. [Class 120(ii)] In a spinning regulator for electrically driven textile ring spinning machines of the type in which a wing, oscillating in accordance with the up and-down movements of the ring rail, is provided with a curved slot in which a guiding piece, connected with the speed regulating device of the machine driving motor, is caused to slide under the influence of a guide screw which is rotated by means of the ratchet wheel of the ring rail, as described in Specification 539,007, the guide screw 9 is provided with screw threads 91, 92, 93 having' different pitches and the guiding piece is provided with a sleeve 81 comprising a pin 82 engaging the screw threads. The threads 91, 92, 93 on the guide screw may have more than one start and the guiding piece may be provided with pins 82 equal in number to the starts. The invention permits rapid increase to the maximum fundamental speed of a ring frame.
Patent GB-292017-A (GB)
Title: Improvements in window fasteners
IPC: E05F11/00
Filed: 1927-11-16
Abstract: 292,017. Cameron, A., (known as Cameron, A. G.). Nov. 16, 1927. Window holders. - A vertical notched rod 10, secured to the window frame 1 and rotated to free a catch on the sash, is mounted in bearings on one side of the frame while the catch is mounted on the adjacent side of the sash. The rod has a cranked end 11 for a handle and is engaged by catches 31, 20 formed of a bowed spring mounted in casings 28, 12 carried by the upper and lower sashes 2, 3 respectively. The catch 20 has an upper end 21 engaging an inverted notch 24 to lock the lower sash in closed position, and is retained by side lugs engaging slots in its casing 12.
Patent GB-507477-A (GB)
Title: Methods and means for testing rotary bodies, especially wheels and/or tyres
IPC: G01M17/02
Filed: 1937-11-10
Abstract: 507,477. Stands for vehicles &c. DUNLOP RUBBER CO., Ltd., WILLIAMS, J. I. S., and BROADBENT, F. G. Nov. 10, 1937; Nos. 30814/37 and 25491/38. [Class 79 (iii)] [Also in Groups XIX and XXXIII] A motor-car may be tested by running the car wheels on to four drums any of all of which are constructed. as the drum 19 of the section shown in Fig. 4. The drum is mounted on an axis passing through the centre of the circle 27 forming the median section and square to the plane of the circle and is driven through a clutch from a motor.
Patent GB-351364-A (GB)
Title: Improvements in stands for the display of goods
IPC: A47F5/06
Filed: 1930-10-15
Abstract: 351,364. Stands. SCHÍNBERGER, M., 31, Neubaugasse, Vienna. Oct. 15, 1930, No. 30873. [Class 52 (v).] In a stand of the kind in which display arms &c. are clamped between rings or distance pieces movable along a standard, the rings are slidable on the standard and are pressed together by a spring. In the construction shown the rings 4 are pressed together by a spring 7 enclosed within the telescopic members 5, 6, the former being slidable on the standard 2 and the latter resting on the base 1. The rings are recessed at 8 to permit the introduction of a tool to force adjacent rings apart.
Patent GB-1218583-A (GB)
Title: Piperidine derivatives
IPC: C07D295/13
Filed: 1968-06-28
Abstract: 1,218,583. N - Substituted - 2,5 - dialkylpiperidines. TAKEDA YAKUHIN KOGYO K.K. 28 June, 1968 [28 June, 1967; 27 Dec., 1967], No. 30897/68. Heading C2C. Novel N - substituted - 2,5 - dialkylpiperidines of the general formula wherein R 1  and R 2  are each a methyl or ethyl group, Y is an oxygen atom or an imino group, m is 2 or 3 and n is 1 or 2, and pharmaceutically acceptable acid addition and quaternary ammonium salts thereof are prepared by reaction of a piperidine derivative of the general formula wherein Z is a hydroxy or amino group, or a functional derivative thereof with a chlorobenzoic acid of the general formula or a reactive derivative thereof, followed optionally by salification. Pharmaceutical compositions having spasmolytic activity comprise, as active ingredient, an N - substituted - 2,5 - dialkylpiperidine of the first general formula above or a pharmaceutically acceptable acid addition or quaternary ammonium salt thereof, together with a suitable carrier or adjuvant, and may be administered orally or parenterally.
Patent GB-632986-A (GB)
Title: Improvements in or relating to piston rings and the like packing rings
IPC: F16J9/26
Filed: 1945-11-19
Abstract: 632,986. Piston rings. BREARLEY, N. C., and HEPWORTH & GRANDAGE, Ltd. Nov. 19, 1945, No. 30965. [Class 122(i)] A piston ring or like packing ring having applied on at least one surface of the base material of the ring, which is subjected to wear when the ring is in use, a layer of a hard wear-resistant material such as chromium, different from the base material of the ring, and having applied on said layer a layer of a relatively soft material such as tin, cadmium, zinc or lead, which will wear appreciably more quickly than said first-mentioned layer.
Patent GB-1530881-A (GB)
Title: Method and apparatus for regulating a quantity which is dependent upon a plurality of manipulated variables
IPC: G05B13/02
Filed: 1977-07-22
Abstract: 1530881 Automatic control systems SIEMENS A G 22 July 1977 [20 Aug 1976] 30983/77 Heading G3R In a system for regulating a quantity which is dependent upon a plurality of manipulated variables, the variables are sequentially and cyclically adjusted in steps, one at time, the steps being in one direction until an error signal representing the difference between the quantity and a desired value reaches a minimum value, as indicated by the differential of the error changing sign, whereupon the direction of adjustment is reversed until the differential again changes sign, this action being repeated until a predetermined number of such changes have occured, after which the process is repeated for the next variable and so on. The invention is applied to a cement manufacturing plant 25, in which the manipulated variables are the relative quantities W1...W4 of marl, lime, clay and sand. The product is analyzed by a spectrometer 26 to determine the concentrations of CaO, SiO 2 , Al 2 O 3  and Fe 2 O 3  from which the "lime standard KS", the "silicate modules SM", and the "alumina modules TM" are determined at 27 for comparison with desired values for these at 28. The resulting errors are "modified" at 29 according to plant characteristics and are added together at 31 for differentiation at 33 to operate the controller 5 for the said manipulated variables. Because of the long response time of the process the signals for the manipulated variables are also fed to a model 32 of the plant which has a rapid response and supplies feedback signals KS', SM', TM'. Details of the controller 5 and other units are given.
Patent GB-1370013-A (GB)
Title: Safety guards
IPC: A01B71/08
Filed: 1971-07-02
Abstract: 1370013 Machinery guards ATKINSONS OF CLITHEROE Ltd 11 July 1972 [2 July 1971] 31054/71 Headings F2J and F2U  A plastics machinery guard 30 for a universally jointed telescopic rotary power take-off shaft 10-14 on a tractor, has an axially split beaded neck 28 providing a number of resilient fingers with radially inwardly directed semicircular section beaded ridges 33 by which the guard 30 is freely rotatably journalled on an externally grooved plastics sleeve 22 securely clamped at 24 to the driving or driven shaft 10. The beaded ends 33 of the resilient fingers are snap-engaged into a groove 26 of the sleeve 22 which is additionally formed with a cylindrical bearing surface 27 for the neck 28, the guard being axially located by the snap connection. Normally the guard 30 will revolve with shaft 10 but on contact with a person, slows or stops permitting the P.T.O. shaft assembly and sleeve 22 to relatively revolve freely within the guard. Alternatively, the guard may be held stationary at all times by a chain and clip (not shown) fixed to a part of the tractor, the neck 28 being modified to include a collar (not shown) housing radially inwardly urged ball bearings for snap engagement in the groove 26 in the same manner as the resilient fingers. A ball 34 is provided in the guard 30 for assembly or release of a universal joint yoke securing cotter 16. An adjacent interfitting guard 31 of the assembly is mounted by an integral sleeve also formed with resilient beaded fingers which are similarly freely journalled in a grooved portion of the P.T.O. shaft 14 as more specifically described in Specification 1,370,014.