baber/WOPTO huggingface dataset:
Patent GB-1302483-A (GB)
IPC: B66B15/04
Filed: 1971-04-19
Abstract: 1302483 Winch brakes CANADIAN GENERAL ELECTRIC CO Ltd 19 April 1971 [14 April 1970] 20328/71 Heading B8B [Also in Division F2] A mine hoist wheel assembly comprises a wheel 10 having a hub mounted for rotation on a horizontal axis, a coaxial rim having two annular end flanges and a structure for securing the rim to the hub, a braking surface on the axially outer face of each flange, at least one rigid U-shaped frame disposed astride the wheel and supported by a base which supports the wheel, with the legs spaced axially from the flange braking surfaces, and a brake actuator 18 located in an aperture in each leg and having a brake pad. The braking surfaces may be tapered or curved. In each brake actuator 18, a pad 49, held in a recess in a carrier 48, is actuated by a spring 61 abutting a second carrier 52. A disc 63 adjacent the carrier 52 has a diaphragm 68 affixed to inner and outer flanges 67, 66, and air, supplied to a chamber between the diaphragm and disc, causes leftward movement of the disc, which, via a nut 73, a rod 50, and the carrier 48, retracts the brake pad 49 against the spring 61. An oilite bush 67 and a P.T.F.E. bush 45 accommodate axial movement of the rod 50 and the carrier 48 respectively. Spring adjustment is effected by rotation of the carrier 52 in a bush 53 to axially adjust the carrier 52. An arm attached to the disc 63 lies between two microswitches 78, 79 attached to the carrier 52, microswitch 78 indicating brake release and microswitch 79 indicating excessive brake travel. The carrier 48 is located in one wall 41 of the U-shaped frame and carrier 52 is located in another wall 42. Two such frames may be adjacent the wheel 10, and four, eight, twelve or twenty-four brakes 18 may be utilized.
Patent GB-805297-A (GB)
Title: Esters of halides of dibasic organic acids
Filed: 1955-07-14
Abstract: The invention comprises compounds of the formula ROOC(CH2)4CH(SR1)CH2COX (wherein R is an hydrocarbon group, R1 is an acyl group and X is an halogen atom) and their preparation by reacting an appropriate 7-monoester of a 3-acylthio-7-carboxyheptanoic acid with a halogenating agent, preferably thionyl chloride.  Other halogenating agents referred to are phosphorus halides and oxyhalides.  In examples: (1) 3-acetylthio-7-carboethoxyheptanoyl chloride is prepared by treating the appropriate acid with excess of thionyl chloride at room temperature; (2) and (3) the (+)- and (-)-enantiomorphs are similarly prepared from the (+)- and (-)-enantiomorphs of 3-acetylthio7 - carboethoxyheptanoic acid; (4) 3 - butyrylthio-7-carbophenoxyheptanoyl chloride is prepared similarly and it is stated that 3-propionylthio - 7 - carbomethoxyheptanoyl chloride, 3-benzoylthio - 7 - carbophenoxyheptanoyl chloride, 3 - acetylthio - 7 - carbobenzoxyheptanoyl chloride, 3 - butyrylthio - 7 - carboethenoxy heptanoyl chloride and 3-phenylacetylthio-7-carboethoxyheptanoyl chloride are also produced by chlorination of the corresponding heptanoic acids and that the corresponding bromides are similarly prepared. Specification 805,296 also is referred to.
Patent GB-1466974-A (GB)
Title: Extrusion presses
IPC: B21C27/00
Filed: 1974-05-08
Abstract: 1466974 Extruding WEAN UNITED Inc 8 May 1974 [14 May 1973] 20354/74 Heading B3P An extrusion press has a movable container assembly 20 movable into alignment with the press axis and accurately positioned by a stop member 42 which engages a bracket 30 on the container assembly and a latching mechanism 50. The stop member 42 is pivoted into the path of the bracket 30 by an hydraulic pistoncylinder unit 46. The latching mechanism comprises a bar member 56 moved by an hydraulic piston-cylinder unit 60 to engage a keyway 64 on the container assembly. The stop member piston-cylinder unit 46 has a flow control valve which regulates discharge to provide cushioning of the bracket 30 and stop member 42 impact. The stop member 42 may allow overrun and then push the container assembly back.
Patent GB-208743-A (GB)
Title: Improvements in and connected with fitting insulation on ships, buildings and the like for the purpose of retaining heat and excluding cold
IPC: E04B1/76
Filed: 1922-07-26
Abstract: 208,743. Bean, A. July 26, 1922. Non-conducting coverings for heat.-In insulation for ships or buildings, the first sheet D of cork is fitted closely between the beams B secured to the deck or floor A. The next sheet D is placed against the first sheet, the wood guards E fitted and the parts drawn together by the bolts C, a layer of thin sheet cork is then fitted against the bevel surface and secured by skewers I and finished off by double cement sheathing, and butt straps H. A layer F of pliable solution is used to fix the sheets D and' G.
Patent GB-1308863-A (GB)
Title: Lasers
IPC: H01S3/08
Filed: 1971-04-19
Abstract: 1308863 Lasers SIEMENS AG 19 April 1971 [28 Jan 1970] 20604/71 Heading H1C In a laser in which an active medium such as neodymium-doped glass is capable of producing radiation of at least two wavelengths # 1 , # 2 , at least one resonator mirror consists of a selectively-reflective multi-plate resonance reflector formed by a plurality of transparent, e.g. quartz, plates separated by air gaps. The thickness of each air gap is substantially equal to an odd-numbered multiple of a quarter wavelength for a selected wavelength # 2 , and also substantially equal to a whole numbered multiple of a half wavelength of the other wavelength # 1 , the multi-plate reflector being then substantially reflective for the selected wavelength # 2  alone so that a corresponding output wavelength is obtained and the other wavelength suppressed. For neodymium, wavelengths of # 1  = 1À064 Á and # 2  = 1À318 Á may be produced, and to obtain an output wavelength of # 2  the air gaps may have a thickness substantially equal to <SP>5</SP>/ 4  # 1  and <SP>3</SP>/ 2  # 2 . The selectivity of the multi-plate reflector may be enhanced by an antireflective coating for the wavelength # 1  on the outer surfaces. The reflector plates may be circular discs and the air gaps defined by annular spacers.
Patent GB-1069433-A (GB)
Title: Potentiometer
Inventor: JACOMB WILLIAM WYKEHAM
IPC: H01C10/28
Filed: 1963-01-21
Abstract: 1,069,433. Potentiometers. SPERRY GYROSCOPE CO. Ltd. Jan. 21, 1964 [Jan. 21, 1963], No. 2607/63. Heading H1S. A potentiometer comprises a rod of insulating material wound with closely spaced turns of resistance wire, a conducting rod parallel to and alongside the wire wound rod, and a conducting roller mounted on a carriage movable parallel to the lengths of the rods, so that on movement of the carriage the roller rolls on the two rods and makes electrical contact between them. The carriage 2 is moved by a spindle 1, which moves in response to the position of an aircraft control surface. The insulated rod 4 is an aluminabased ceramic and the wire wound on it is 80% platinum, 20% irridium. The roller 10 and conducting rod 5 are of eutectic copper-silver alloy. Since the roller is softer than the wire, the roller wears in preference; this wear forms a fluting on the roller surface which reduces slip of the roller on the wire. A spring is used to maintain the roller in contact with the rods.
Patent GB-930924-A (GB)
Title: Improvements in or relating to hydraulic governors
IPC: G05B11/60
Filed: 1961-06-07
Abstract: 930,924. Fluid-pressure servomotor control systems. CURTISS-WRIGHT CORPORATION. June 7, 1961 [June 7, 1960], No. 20616/61. Class 135. An hydraulic governor, e.g. a speed governor for an engine or prime mover, comprises a differential piston 15, Fig. 1, controlling the fuel metering rack or the throttle valve of the engine and continuously subject on its lower, smaller-area surface to pressure from a source P, a pilot valve 12 connected to fly-weights 1 and operative, depending upon its direction of movement, to connect the larger area of the piston 15 with the pressure source or with exhaust, and a rate of change valve 20 connected to the fly-weight through a floating lever 25 and controlling a piston 22 which affects the operation of the piston 15 by displacing fluid in a conduit 8b connected to a point between the valve 12 and the piston 15. Movement of the piston 22 is transmitted to the floating lever 25 to return the valve 20 to its closed position. The links 11, 26 by which the valves 12, 20 are connected to the floating lever are adjustable along that lever. A feedback linkage 30, 31 may be provided between the piston 15 and the speeder spring 2 of the flyweights to provide a permanent speed droop. The piston 22 may be isolated from the piston 15 by a three-way valve 33. The governor may alternatively be arranged so that the piston 22 operates the fuel control means. In this case the piston 22 is spring-loaded and the valve 33 is operated to vent the lower side of the piston 22. In a modification, the valve 20, Fig. 2, is connected through a floating lever 36 and links 34, 35 with levers 25<SP>1</SP>, 2511 having fixed fulcrum points F, F<SP>1</SP> and connections with the flyweight 1, the valve 12, and the piston 22. The connection points A, B, C on the levers 25<SP>1</SP>, 25<SP>11</SP> are adjustable. For operation with permanent speed droop the piston 22 may be connected to the fuel control means and loaded by a spring 23s. The arrangement of Fig. 2 may be modified by adapting the pistons 15<SP>1</SP>, 22 and their controlling valves to be double acting. In this case an additional piston is connected to the piston 22 for displacing the fluid to modify the action of the piston 15<SP>1</SP>. In this modified form the fulcrum F<SP>1</SP> of the lever 25<SP>11</SP> may be movable by an electromagnetic device responsive to the electrical output of a generator driven by the governed engine.
Patent GB-369844-A (GB)
Title: Improvements relating to safety razor blades
IPC: B26B21/56
Filed: 1931-07-20
Abstract: 369,844. Safety-razor blades. MONEY, G. T., South Creake, Fakenham, Norfolk. July 20, 1931, No. 20654. [Class 30.] The edges of a flexible safety-razor blade are formed by a combination of face and edge grinding so as to obtain a different cutting angle according to which side is uppermost in the holder. Bevelled edges are combined with hollow ground edges, Fig. 2, or with flat edges ground into the blade, Fig. 3.
Patent GB-512010-A (GB)
Title: Prefill valves for hydraulic presses
IPC: B30B15/18
Filed: 1938-07-12
Abstract: 512,010. Hydraulic presses. CANNON, E. July 12, 1938, No. 20683. [Class 69 (ii)] A prefill valve for hydraulic presses comprises a reciprocating valve element adapted to open or close communication between the ram chamber and a source of supply of liquid at substantially atmospheric pressure, a valveclosing chamber connected to a source of supply of liquid at relatively high pressure, and a passage for passing liquid from the valve-closing chamber to the ram chamber to establish working pressure therein, the said passage being of such restricted area that, as liquid passes therethrough toward the ram chamber, sufficient back pressure is created in the valve-closing chamber to move the said valve element to its closed position. In an arrangement, Fig. 1, having a central tube 29 for introducing pressure liquid into a quick advance chamber in the ram, the prefill valve 16 is normally held open by a spring 24; to close the valve, liquid is introduced into the valve-closing chamber 23, communication between the latter and the work chamber 18 being through passages 35 of restricted area in the bore of the valve 16 surrounding the tube 29. In a modification, Fig. 3 (not shown), means separate from the prefill valve structure are employed for effecting rapid advance of the ram In a further modification, Fig. 5, the valve 16 is closed by the admission of liquid to chamber 47 and opened by admission to chamber 48; a balance chamber 46 communicates through bore 49 in the valve with the working chamber 18 and the restricted passages 54 connect the valveclosing chamber 47 with the bore 49. Specifications 509,248 and 509,925 are referred to.
Patent GB-424883-A (GB)
Title: Improvements in and relating to tobacco feeding apparatus for cigarette-making machines
IPC: A24C5/39
Filed: 1933-07-22
Abstract: 424,883. Cigarette-making machines. CHANDLER, R. J. A., 58, Holborn Viaduct, London. July 22, 1933, No. 20743. [Class 130] A method of feeding tobacco to a continuous-rod machine consists in extracting " shorts " from the tobacco in a main hopper, forming a measured layer of substantially short-free tobacco from the main hopper, delivering or showering " shorts " under control on to the layer, and showering the combined layer into the shoot of the machine. In the arrangement shown, tobacco in the main hopper 1 is fed by a carded belt 2 to a carded drum 3 associated with refusing rolls 4, 5, and is showered by a picker roll 6 on a more or less horizontal feeding belt 7. This delivers a measured quantity of tobacco to a shielded pin wheel 8, from which it is showered into the shoot 9 of the rod-forming mechanism. " Shorts " from the tobacco are collected by a shield 14 and are delivered by the belt 2 and a suction conduit 16 to a compartment 17 of a " shorts " hopper 10, dust being drawn off through a grid 18 by a fan 19. The " shorts " accumulate on a counterweighted flap 20 and are delivered periodically into the hopper 10, from which they are showered on the tobacco on the belt 7 by a carded feed roll 11 associated with a refusing roll 12 and a picker roll 13. The amount of " shorts " delivered is controlled by variation of the speed of the rolls 11, 12, or by adjusting the gap between them. The belt 7 may be replaced by a carded feed drum.
Patent GB-1133866-A (GB)
Title: Disinfection of soils
IPC: A01B79/00
Filed: 1966-05-11
Abstract: 1,133,866. Treating plants; ploughs. CONSERVATOME RECHERCHES. 11 May, 1966 [17 May, 1965], No. 20802/66. Headings A1B and A1E. [Also in Division H5] A mobile apparatus for disinfecting soil by ionising radiations comprises a wheeled chassis, a protective enclosure carried on the chassis and sealed against radiation, the enclosure having at least a bottom opening located within the wheel base and between the wheel tracks, and an irradiation installation mounted on the chassis within the enclosure, the installation having at least one emitter surface and generating at least one beam directed towards the ground through the opening. As illustrated the apparatus comprises a vertically adjustable support carrying irradiating panels (9, 10) (Fig. 2, not shown) each including a radio-active source emitting X-rays, or gamma rays within the enclosure, and a frame 6-8 for protecting the panels from soil and dust when in their operative position 9b. When inoperative, or when a person approaches the apparatus and actuates a safety device the panels are retracted to position 9a and a protective lead panel 22 is moved to its broken line position. Water is passed via nozzles into the casing to wash the panels or to submerge the panels when retracted. A member 23 is prevented from being removed until the panels are retracted, and submerged. In an alternative embodiment (Fig. 4, not shown) the apparatus includes electron accelerators, adapted to emit gamma rays, which can be activated or de-activated as desired. Ploughs may also be provided between accelerators arranged longitudinally of the apparatus.
Patent GB-279583-A (GB)
Title: Improvements in the retting of flax and other fibres
IPC: D01C1/04
Filed: 1926-08-24
Abstract: 279,583. British Dyestuffs Corporation, Ltd., Hollins, C., and Chapman, E. Aug. 24, 1926. Retting.-In the retting of flax and other fibres by fermentation certain wetting-out or dispersing agents, viz. :-the sulphonic acids derived from formaldehyde - naphthalene or formaldehydephenol condensation products, the alkyl-naphthalene sulphonic acids, the substances prepared by sulphonating mineral oil fractions and condensing the products with isopropyl alcohol, lignin sulphonic acids, naphthenic acids, taurocholic acid, and sulphonated higher fatty acids, are added to the retting bath or to the preliminary, soaking bath, preferably as neutral sodium salt, to give a concentration of 0.5 to 2.0 per cent.
Patent GB-479430-A (GB)
Title: Improvements in or relating to means for the balancing and controlling of toy bicycles
IPC: A63H17/16
Filed: 1936-07-29
Abstract: 479,430. Toys. TOWNEND, H. C. H. July 29, 1936, No. 20957. [Class 132 (iii)] A toy velocipede has its balance maintained by a gyroscope which may also drive the toy. The fly-wheel g is housed within the steering- wheel c<1> and is rigidly mounted on the axle e rotated by external means through the clutch member e<1> and drives the wheel e<1> through gearing f<3>, f<2>, f<1> and f, the fly-wheel rotating at a substantially greater speed than the front wheel c'. The rear wheel c rotates a pair of pedal cranks a<5> through a chain or elastic band b<2> and chain wheels or grooved pulleys b<1>, b. A figure d has jointed legs d<1> articulated to the pedal cranks a<5> and jointed arms d<2> connected to the handle-bars a<4>. The handle-bars a<4> may be connected to the frame of the velocipede by a compression or tension spring or elastic band or the jointed arms d<2> may be weighted or spring-loaded or uncoupled from the handle- and attached to the legs of the figure to improve the stability of the toy. The toy may be made to travel in a circuitous path by weighting, spring loading or uncoupling one of the arms d<2> from the handle-bars or by fastening a spring to one of the handle-bars. The figure d may be of sheet-metal or wholly or partially of rubber, as may also be the legs and/or arms. The wheel c<1> and fly-wheel g may be driven by clockwork mechanism, and in a toy velocipede of the penny-farthing type the fly-wheel g may be eccentric to the wheel c<1>, a weight or weights being accommodated within the wheel c<1> to counterbalance the weight of the fly-wheel.
Patent GB-294540-A (GB)
Title: Improvements relating to record-card-controlled statistical machines
IPC: G06K15/04
Filed: 1928-07-20
Abstract: 294,540. Tauschek, G. July 25, 1927, [Convention date]. Statistical machines; printing distinguishing marks. - In a record-card-controlled statistical machine as the data from each card is printed on the record strip there are printed alongside special marks or data, such as workman's name. by means of separate type carriers moved in synchronism with the cards. Alongside the ordinary type which list against the platen 3 is a special magazine 2 having divisions 5 and 4 for used and unused separate type carriers 17. A shaft 9 is driven from the statistical machine proper and, through cams 11. 12, operates first a hammer 13 and then a lever 15 and slide 16 so that printing is effected from the top type carrier in the part 4 and then this carrier is moved into the part 5. The shaft 9 also operates a sector 10 and a wheel 8 for screws 6 and 7 so that after each printing the sector 10 operates and carriers 17 in part 4 rise and those in part 5 move down the thickness of one type carrier . Instead of effecting printing for each card, printing may only take place after a certain number of cards or for a special card. For this the cam 11 is upon a separate shaft and the shaft 9 is coupled adjustably with the tabulating machine. A second slide, similar to 16, may feed the type carrier back to the part 4. Alternatively, the type carrier 17 may be carried in a conveyer band which is put into the machine and in which the carriers remain.
Patent GB-1471933-A (GB)
Title: Winding apparatus for web material
IPC: B65H19/22
Filed: 1974-05-14
Abstract: 1471933 Web winding BLACK CLAWSON CO 14 May 1974 [21 May 1973] 21363/74 Heading B8R A continuous web winding machine comprises a pair of spaced stands 11, 21, Fig. 1, supporting respective pairs of web roll supporting arms 12, 13; 12<SP>1</SP>, 13<SP>1</SP> coupled in opposed pairs 12, 13<SP>1</SP> and 12<SP>1</SP>, 13 for independent driving in both rotary directions, the opposed pairs being driven in succession to a first station at which, e.g. arm 12, Fig. 3, is located at a core loading station and a web winding starting station and to a second station at which, e.g. arm 13 is located at a second terminal winding station, the first and second stations being respectively located in first and second quadrants, the third and fourth quadrants being used for driving the arms at a faster rate between a roll unloading state and core receiving state. In operation with the arm 12 in the position indicated in Fig. 3, a core 200 is loaded on to the arms 12, 13<SP>1</SP> and when the roll 202 supported by arms 13 (12<SP>1</SP>) is fully wound a presser roller 125, Fig. 13, is tripped into contact with the core 200 to accelerate the latter to the speed of web W, whereupon a knife 123 is actuated to sever the web and apply it to the core. Following starting the web winding in the new core 200 the fully wound roll is ejected, the arms 13, 12<SP>1</SP> moved at the fast speed through the third and fourth quadrants to the core loading position in the first quadrant, whilst the new core 200 supported by arms 12, 13<SP>1</SP> is advanced to the second quadrant and terminal winding position by driving the arms at a slow rate. The knife 123 is mounted pivotally on an arm 155, in turn pivoted on a support 167, and actuated by a piston 170 through the intermediary of linkage 176. The knife is adjustable to cut the web wound on to cores of different diameters. The cores 200 are gripped or released by mandrels 60, Fig. 4, which are axially slidable by an air motor 70 driving gears 71, 72 which are associated with a threaded spindle and nut assembly 73, 75. The assembly is connected to the spindle 60 by a collar 76.
Patent GB-654723-A (GB)
Title: Vehicle wheels for pneumatic tyres
IPC: B60B21/08
Filed: 1948-08-13
Abstract: 654,723. Aeroplane wheels. DUNLOP RUBBER CO., Ltd., and BUTLER, H. J. Aug. 13, 1948, No. 21368. [Classes 144 (i) and 144 (ii)] An aeroplane wheel of large braking capacity comprises a radial annular web 6 the inner peripheral portion of which is secured to a twopart annular hub 7 so that the parts extend on opposite sides thereof, and the outer peripheral portion of which is secured to a tyre-seating rim 1 in the median plane thereof. As shown, the rim 1, which has fixed tyre-retaining portions 3, and the hub 7 are flanged and circumferentially split in a central plane, each portion having a part of the respective flanges, and the respective flange parts being bolted on opposite faces of the annular web 6. The wheel carries two flanged brake drums 12 which are secured one on each side of the web 6 with their flanges 11 resting on web shoulders 10. The hub 7 may be stiffened by axially extending ribs 14. In an alternative construction, the split rim may be replaced by a one-piece rim having a removable tyre-retaining portion on one side, and a single web-securing flange adjacent the central plane. The drum brakes may be replaced by disc-type brakes, the discs being housed between the rim and the hub.
Patent GB-1341752-A (GB)
Title: Margarine
IPC: A23D7/00
Filed: 1971-04-19
Abstract: 1341752 Margarine fat composition UNILEVER Ltd 19 April 1971 [10 Feb 1970] 21412/71 Heading C5C A margarine fat composition contains a blend of normally liquid and solid fat components, wherein the former comprises randomized safflower or tobacco seed oil or edible oil from a variety of sunflower or vegetable oil at least 65% of the combined fatty acid content of which is polyunsaturated. The solid component comprises a blend of peanut cotton seed oil, stearine and ground-nut oil having an iodine value of 40-50, or partially hydrogenated rape seed oil with an iodine value of 53-55. The liquid component may contain a portion of the above mentioned oils in unrandomized form.