baber/WOPTO huggingface dataset:
Patent GB-1474333-A (GB)
Title: Apparatus for the control and regulation of cutting interval and synchronism at a cutting mechanism for the machine of strip material
IPC: B23D36/00
Filed: 1975-05-19
Abstract: 1474333 Automatic control systems L SCHULER GmbH 19 May 1975 [11 June 1974] 21197/75 Heading G3N An automatic control system is used to cut strip material to a desired length by measuring the speeds of material feed rolls and of the cutting mechanism, and measuring the distance moved by the material and the cutting mechanism since the previous cut. The rolls and the cutting mechanism are fed from a common drive, with an auxiliary drive to one of these controlled so as to regulate the cut length, according to the measured speeds and the distances travelled, which are compared with each other and with the desired length. As shown, pulse generators 15, 16 in the drive to feed rolls 2 and shear mechanism 4 provide outputs dependent upon the distances travelled by the material and the shear. These signals are differenced by up-down counter 23 and modified in A-D converter 24 by a desired cut length (as set at 17, 18) to form a desired speed signal for the auxiliary drive motor 13, that controls differential gearing 10 in the shear drive. The motor speed is retroactively controlled to this value in a system using an inner current loop 28. Provided a limit is exceeded, the output of converter 24 is also compared with a signal from 39, dependent upon the angular position of the shear drive 11, and used to regulate the speed and current of main motor 6 e.g. upon acceleration. The system may be analogue or digital. In an alternative Fig. 1 (not shown) the shear drive position signal is counted with the count reset at each cut. The material may be paper, cardboard, textile or sheet metal strip.
Patent GB-1017104-A (GB)
Title: Improvements in or relating to methods of processing silicon
Inventor: BRADSHAW STANLEY EDWIN
IPC: C30B15/10
Filed: 1962-06-01
Abstract: Removal of residual molten silicon remaining in a silica crucible after the major portion has been removed, e.g. in a crystal-pulling process is effected by adding carbon so that the silicon is absorbed by, and/or reacts with, the carbon, and can easily be removed from the crucible. The carbon may be either (a) a porous graphite rod which is lowered into the crucible, absorbs the silicon, and is withdrawn, or (b) carbon powder not less than 1 mm. in diam., or a pellet of porous graphite (by weight at least 1/3 of the silicon residue), which is added and allowed to react, residual material being emptied out (Si + C + SiC).
Patent GB-981953-A (GB)
Title: Fluid control valve assembly
Inventor: SADLER PETER
IPC: F16K51/02
Filed: 1961-06-13
Abstract: 981,953. Valves. GENEVAC Ltd. June 13, 1962 [June 13, 1961], No. 21209/61. Heading F2V. A manually actuated valve controlling flow between an inlet 1 1a and outlet 11b of a body 11 comprises a sealing disc 12a engaging a seating 11c, the disc being carried by a spindle 12b which slides in a guide member 13 and is operated by a cam 18 pivoted to the spindle and having a handle 19. The cam and handle are located angularly in relation to the valve by a groove 16 across the guide member 13, and the angular position of the handle is adjustable by turning the guide member before a clamping plate 13c is tightened down, so that the valve and handle assume desired positions in relation to a panel board on which the valve is mounted. The valve is biased to closed position by a helical spring 14 surrounded by a metallic sealing bellows 15 connected at opposite ends to the valve member and to a back 13b.
Patent GB-499882-A (GB)
Title: Improvements in plate clutches
IPC: F16D13/71
Filed: 1937-07-31
Abstract: 499,882. Friction clutches. BAILEY, R. W. H. July 31, 1937, No. 21263. [Class 80 (ii)] Between the driven plate A and the pressure plate C of a plate clutch is interposed a plate E which is connected for rotation with the plate C while being urged away from the latter by a series of leaf springs disposed directly between the opposing faces of the plates C and E. Friction facings A<1> may be carried either by the plate A or by the plate E and the axiallyfixed driving plate. Leaf springs F, riveted at their ends to the plates C and E respectively, may constitute both the cushioning springs and the means for connecting the plates for rotation. These springs may be inclined all in the same direction or adjacent springs may be oppositely inclined. The cushioning action of the springs F may be supplemented by coil springs G, Fig. 4, or by doubly-bowed leaf springs H, Fig. 6, the bowed ends of which are riveted to the plate C (or E). Alternatively the springs F may be omitted, the springs H, in addition to being riveted at their bowed ends to the plate C (or E), being riveted at their centre to the plate E (or C), so as to connect the two plates for rotation. It is stated in the Provisional Specification that the shape of the springs H provides a twostage engaging action of the clutch.
Patent GB-1023299-A (GB)
Title: Polymeric viscosity index improvers for lubricating oils
IPC: C10M143/00
Filed: 1964-05-22
Abstract: Lubricating oils comprise as viscosity index improver 0.1 to 30% by weight of a block copolymer comprising stereo-regular hydrocarbon polymer blocks insoluble in oil at below 0 DEG  C., and amorphous hydrocarbon polymer blocks soluble in oil at above - 20 DEG  C., the copolymer being progressively solvatable in lubricating oil with increasing temperature and completely solvatable below 150 DEG  C. The copolymer blocks are preferably derived from C2-C20 olefins and styrene.  The lubricating oil may be of the petroleum type, e.g. those consisting of conventional base stocks or base stock blends, or synthetic, e.g. Fischer-Tropsch produced oils.  The usual additives may also be present, e.g. detergents, dispersing acids, pour point depressants, anti-oxidants and known viscosity improvers.ALSO:A viscosity index improver for lubricating oil comprises a block copolymer having stereo-regular hydrocarbon polymer blocks insoluble in oil at below 0 DEG  C., and amorphous hydrocarbon polymer blocks soluble in oil at above -20 DEG  C., the copolymer being progressively solvatable in lubricating oil with increasing temperature and completely solvatable below 150 DEG  C.  Preferably, the combined molecular weight of the amorphous blocks is at least 50% of that of the stereo-regular blocks.  The stereo-regular blocks may be derived from polymers and copolymers of propylene, butene, pentene, hexene and styrene; the amorphous blocks from polymers and copolymers of C2-C20 alpha-olefins.  The block copolymers are generally obtained by first forming the stereo-regular blocks and then continuing the polymerization under conditions which will not form stereo-regular chains.  Both polymerization stages may be effected in the same reaction zone using the batch method, or the process may be effected continuously using a two-reaction zone system.  The stereo-regular polymerization is generally effected with the usual Zeigler catalysts, e.g. aluminium trialkyls or alkyl aluminium halides in combination with halides or alcoholates of transition metals such as vanadium and titanium, in an inert hydrocarbon solvent at elevated temperatures.
Patent GB-1285849-A (GB)
Title: 9alpha-FLUORO-16alpha-METHYL-PREGNANE COMPOUNDS
Inventor: ARTH GLEN EDWARD
IPC: A61K/
Filed: 1971-04-19
Abstract: 1285849 9α - Fluoro - 16α - methyl - steroids MERCK & CO Inc 19 April 1971 [13 Feb 1970] 21304/71 Heading C2U Novel 3#,11# - dihydroxy - 9α - fluoro - 16α- methyl - 17α - acyloxy - pregn - 4 - en - 20 - ones and their 3-ethers and -esters are prepared by alkali metal borohydride reduction of the corresponding 3-ones, with subsequent esterification or etherification when required.
Patent GB-533956-A (GB)
Title: Improvements in and relating to the manufacture of glass
IPC: C03C1/00
Filed: 1939-07-22
Abstract: 533,956. Glass manufacture. BRITISH THOMSON-HOUSTON CO., Ltd. (Ferguson, J.). July 22, 1939, No. 21328. [Class 56] Glass is made from a batch which consists of glass-forming oxides and is free from any ingredients, such as carbonaceous compounds or hydrates, that form gaseous products during melting. The materials used are such that the melting of the batch produces no endothermic chemical reactions and forms a weight of glass substantially equal to the weight of the batch. The sand should be dried to prevent the formation of water vapour, and calcined borax may be used to introduce boron and part of the sodium into the glass. Felspar can be used as a source of silicon, aluminium, sodium, and sometimes calcium and potassium. Boro-silicate glass can be made by melting sand, felspar, and calcined borax. Other suitable ingredients and examples of batches are given in the Specification.
Patent GB-1146315-A (GB)
Title: Improvements relating to access cover assemblies
Inventor: ROBINSON GERALD
IPC: F16B5/02
Filed: 1966-05-13
Abstract: 1,146,315. Wrench. BROADS MFG. CO. Ltd. 4 Jan., 1967 [13 May, 1966], No. 21380/66. Heading B4W. [Also in Divisions E1 and F2] A wrench for engaging manhole securing screws, see Divisions E1 and F2, comprises axially extending projections to fit slots (9) in the screw heads.
Patent GB-1350327-A (GB)
Title: Method and apparatus for ranging a gun
IPC: F41A1/06
Filed: 1972-05-08
Abstract: 1350327 Gun ranging RHEINMETALL GmbH 8 May 1972 [30 June 1971] 21397/72 Heading F3C In a method for ranging a gun the range of fire for a constant barrel elevation is used as a datum which is converted into impulses for apportioning the volume of propellant and/or adjusting the volume of the combustion chamber. In an embodiment a gun 1, having a rifled barrel 2 is rigidly connected to a gun carriage 3. A breechblock 4 is provided with a servo gear 5 for adjusting a combustion chamber and the barrel 2 carries an apportioning device 6 connected with a servo gear 7. The device 6 is coupled, via a conduit 8, to a propellant container 9 and via a conduit 10 to the combustion chamber. The servo gears 5, 7 are electrically coupled, via a converter 11, with a range-finder 12. In use a distance determined by the range finder 12 is provided as a datum to the converter 11 by which this value is converted into an electrical impulse suitable for the servo gear 5 of the breech block 4 and into a pulse suitable for the motor gearing 7 of the apportioning device 6. The size of the combustion chamber is adapted, to the quantity of propellant to be taken in, by the servo gear 5 and the servo gear 7 actuates the apportioning device 6 to extract the required quantity of propellant from the container 9, via the conduit 8 and is conveyed, via the conduit 10, to the combustion chamber. Firing of the gun is by a detonating device (not shown). In another embodiment liquid or paste-like propellant is apportioned by a piston 23, Fig. 2, in a cylinder 24, the piston being moved by a servo gearing 7 set by a range finder (not shown). The cylinder is fed with propellant via a non- return valve 25 and a conduit 8 and propellant is passed, from the cylinder via a non-return valve 22 and a conduit 10, and into a combustion chamber 20 of the gun. In a further embodiment the volume of a combustion chamber 20, Fig. 3, is varied by a piston 31. In yet another embodiment the volume of a combustion chamber 20, Fig. 4, is varied by a ram 36 which is used to position a projectile 21 in a gun barrel 35, an end 21a of the projectile 21 serving as a wall of the chamber 20.
Patent GB-959130-A (GB)
Title: Improvements in or relating to derivatives of nitrofuran
IPC: C07D307/76
Filed: 1962-06-04
Abstract: The invention comprises compounds of the formula: <FORM:0959130/C2/1> in which A represents two hydrogen atoms or the groups of formula: <FORM:0959130/C2/2> in which B is an aryl, substituted aryl, heteroaryl or substituted heteroaryl radical. The compounds are produced by condensing 5-nitrofurfuraldehyde, or a functional derivative thereof with carbohydrazide or an aryl, heteroaryl, substituted aryl or heteroaryl carbohydrazone or by condensing 5-nitrofurfural-carbohydrazone with an aryl, heteroaryl, substituted aryl or heteroaryl aldehyde.  Numerous examples of compounds prepared are given.  The compounds are antibacterial agents and may be used with a pharmaceutically acceptable diluent or carrier.
Patent GB-597559-A (GB)
Title: Improvements relating to roof supports for use in mines
IPC: E21D11/28
Filed: 1945-08-23
Abstract: 597,559. Mine-supporting arches. JOHNSON'S IRON & STEEL CO., Ltd., BANKS, F. W. R., and WHISTON, H. Aug. 23, 1945, No. 21547. [Class 20(ii)] Mine-roof supports which comprise a series of spaced arches connected by tiemembers locked in slots in the arches, have the slots formed with a wide central part located between two narrower parts, whereby any individual tie may be taken out without removing the adjacent tie whose end is located in the same opening. The arch member 12, Fig. 1, of I-section is connected to adjacent arches by ties 16 whose ends are passed through a wide part 11, 13 of a slot in the web, one tie being passed into a narrow slot 15 and the other into an opposite slot 14, by means of recesses 17 in the ties. The ties are maintained in their respective slots by a wedge 18. The ties may be circular in section, the ends of the slots being shaped to correspond to the section of the ties.
Patent GB-603457-A (GB)
Title: Auxiliary air admission valves for internal-combustion engines
IPC: F02M23/08
Filed: 1945-08-23
Abstract: 603,457. Auxiliary air valves. AUTAC, Inc. Aug. 23, 1945, No. 21589. Convention date, July 21, 1944. [Class 7 (ii)] A device for admitting additional air to the induction pipe between the throttle valve and the engine comprises a suction actuated valve 21 in a casing 15 having a valve guide portion 20 and the valve and the guide provide an air passageway which increases in size as the valve is moved by increasing engine suction. As shown, the valve has grooves 25 which increase in depth towards an air inlet opening 16. The valve has a seat 23 in the housing. As the valve is moved against a spring 34 by engine suction from the induction pipe transmitted through a bore 31, the air passageway increases in size due to the variation of depth of the grooves 25. The tension of the valve spring 32 can be varied by a member 28 which screws into the casing 15 and is held from rotation by a cap 42 having teeth engaging teeth on the casing. A spring 45 bearing against a collar 46 on the member 28 and the cap urges the cap against the casing. A groove 36 enables air to pass to the induction pipe when the valve is drawn up against the member 28. An air filter 18 may be provided. The valve is relatively heavy to reduce hunting.
Patent GB-1091233-A (GB)
Title: Tierable and nestable egg-and-milk crate
IPC: B65D21/04
Filed: 1966-05-16
Abstract: 1,091,233. Wire crates. MID-WEST METALLIC PRODUCTS Inc. May 16, 1966 [June 24, 1965], No. 21638/66. Heading B8P. Wire crates are stackable and nestable in vertical columns with the crates all facing the same way, upper and lower stacking support points 16, 11b<SP>1</SP> in vertical alignment being rigidly attached to the sides of each crate, stacking being by resting support points 11b of one container on support points 16 of the one below, nesting being achieved from the stacking position by moving the upper container laterally (to the left as shown) to disengage support points 11b<SP>1</SP> and 16 enabling the containers to slide together into the nesting position, the top edge 10a of one wall being lower to enable the edge 14a to enter the container below. The support points (upper or lower) may be distributed either two per side (as shown) or one per side towards the front (left-hand side) with one centrally placed at the back.
Patent GB-225279-A (GB)
Title: Improvements in or relating to variable inductance devices especially applicable to wireless receiving apparatus
IPC: H01F27/00
Filed: 1923-08-27
Abstract: 225,279. Igranic Electric Co., Ltd., Curtis, A. H., and Dandridge, G. Aug. 27, 1923. Inductances.-A coil-holder shown in plan and elevation in Figs. 1 and 2 respectively comprises pairs of metallic strips 3. 4 forming supports and electric connections for plug-andsocket holders 1, 2. Each movable holder 1 is provided with a screw 7 and a bifurcated shaft 8, each connected with one of the holder contacts, adapted to be mounted in holes at the ends of the strips 3. A cam 12 provided with a lever 13 is mounted on a split pin 11 passing transversely through the shaft 8 and acts on a thin metal washer 10 separated from the strip 3 by a rubber washer 9 to lock the holder when desired. The fixed holder 2 is mounted on the strips 4 by screw 15 on one of which is threaded a locking plate 16 having a lug 18 engaging the base of the holder and flanges 17 engaging the sides of the strip. Each holder consists of two insulating halves holding between them the plug and socket and secured together by a bolt and nut 20 which in the case of the movable holders is provided with a screw socket to receive an ebonite handle 22 having a roughened end 23. The strips 3, 4 are secured to a moulded insulating base 5, recessed at the back, which may be secured to a panel. The strips are provided with terminals 24. One movable holder instead of two may be be provided. In a modification, Fig. 5, two moulded or extruded bases 26 are provided to enable the mounting to be used with holders 1 of various sizes. In this case, the strips 4 may be pivoted at the base.
Patent GB-163350-A (GB)
Title: Mechanism for supplying or feeding fabrics to dyeing, finishing and like machines
IPC: D06C3/00
Filed: 1920-06-03
Abstract: 163,350. Thornber, J., and Henshilwood, A. B. June 3, 1920. Registering webs.-Relates to apparatus for regulating the tension of fabrics being fed to dyeing, finishing, and like machines, of the type illustrated in Fig. 1, wherein the fabric f is led round a pair of rollers 2, 3, carried by arms 4, which are mounted on a shaft 5 and are adjustable vertically by means of the worm 8 and wormwheel 7 to vary the sinuosity of the path of the fabric round the rollers, one of the latter having a friction wheel 11 for a brake rope 12 attached to a weighted lever 13, and consists in the construction and arrangement of this apparatus so that the pull of the fabric acts on the braking device, whereby the tension of the fabric is kept even automatically during the feeding. In 'the arrangement shown in Fig. 3, the fabric, before passing round the rollers 2, 3, is led over a crossbar 16 extending between the brake-lever 13 and a short lever 13a secured to the brake-lever shaft 17. If for any reason the folds of the fabric f should suddenly increase the pull of the fabric, the weighted lever 13 will be raised, thereby reducing the friction of the brake rope 12 and automatically relieving the extra strain on the fabric.
Patent GB-633017-A (GB)
Title: Improvements in or relating to blasting and like charges
IPC: F42B3/02
Filed: 1947-08-07
Abstract: 633,017. Blasting &c. cartridges. HERCULES POWDER CO. Aug. 7, 1947, Nos. 21724, 21725, 21726 and 21727. Convention dates, April 24, 1940. Drawings to Specification. [Class 9 (i)] The subject-matter of this Specification is substantially the same as that described in Specifications 589,904 and 589,920, but the claims differ. This Specification also describes a double-walled sleeve, the space between the walls being filled with a granular material, a short sleeve for assembling but not completely enclosing the cartridges, a long sleeve in which several cartridges can be placed end-to-end, the provision of wooden pegs to hold each cartridge to its associated sleeve and the provision of a cap over the end of the explosive column together with alternative methods of wrapping the plies of paper round the cartridges.
Patent GB-153719-A (GB)
Title: Improvements in connection with writing and like pens
IPC: B43K5/18
Filed: 1919-09-05
Abstract: 153,719. Armytage, K. E. Sept. 5, 1919. Reservoir pens.-A pen containing a solid ink stick for use by dipping into water comprises a tubular handle 1 provided with means to hold an ordinary nib 7, a plug 2 to carry the ink-stick 4, formed with a tubular extension 3 and a restricted opening in the end 5, and a spring-controlled push-rod 8 actuated by means of a screw cap 9 for propelling the ink-stick. The cap 9 is tubular, and the outer end of the push-rod 8 projects into the cap and is surrounded by a spring 11 between the cap and a stop 12.
Patent GB-914513-A (GB)
Title: Improvements in and relating to control switches employing magnetic core devices
IPC: G11C21/02
Filed: 1961-06-19
Abstract: 914,513. Delay-line data storage apparatus. BURROUGHS CORPORATION. June 19, 1961 [July 8, 1960], No. 21978/61. Class 106 (1). Data is written into or read from a magnetostrictive delay line store by the use of an array of transfluxors forming a crossbar switch between a number of delay lines and a number of storage registers or input lines. Fig. 5 shows two such crossbar switches 14, 15 for a pair of delay lines (not shown) having input transducers 22 and output transducers feeding cores 26. Output pulses from 26 are normally recirculated via lines 98, " and " gates 32, pulse generators 40 and input transducers 22, unless the coincidence of half - unblocking currents on a line 90 and from a unit 96 enable a selected transfluxor to be switched by units 100 and 102 (the order of operation of which depends on the binary digit to be inserted) of one of the input lines at the appropriate time to overwrite the output bit from the delay line. Similarly read-out is effected by simultaneous energization of a line 64 and unit 68 to select a desired delay line and output bus ; this unblocks the appropriate core for setting by a binary one received at 26 (and re-written at 22), and its subsequent re-setting by unit 82 to give an output on the read bus. Units 63 and 88 are used to re-block unblocked cores after a reading or writing operation. Specification 914,514 is referred to.
Patent GB-1273345-A (GB)
Title: Identification and feeding apparatus
Inventor: LACK KEITH MALCOLM
IPC: A01J5/04
Filed: 1968-05-09
Abstract: 1,273,345. Feeding animals; milking. TELEDICTOR Ltd. 5 May, 1969 [9 May, 1968], No. 21989/68. Heading AIM. [Also in Division H4] In a system for identifying and controlling the feed to cows, a transmitting coil Cl supplied by an oscillator with a number of discrete frequencies co-operates with a receiving coil C2 which is positioned in a null relationship so that no signals are received until one or more resonant circuits CL carried by a cow are moved between coils C1, C2. This causes signals at the frequencies of the circuits CL to be passed to a unit D to identify the cow. The identification system of Specification 1,260,113 may be used for this purpose. Information relating to the amount of food and the milk yield for the individual cows is stored at S and a signal from unit D causes the relevant information to be passed to a control unit. Part A of the control unit sends a signal to control the food supply to the manger M and a signal from the churn C representing the milk yield is compared in Part B of the control unit with a signal representing the previous yield. The updated milk yield signal is then returned to the store S. The milk container may be provided with means for establishing the condition of the milk, e.g. the presence of mastitis which is recorded via unit B in the store S. Means may be provided for giving visual indication of the milk yield via a read-out unit controlled from the store S or alternatively controlled direct from the measuring head in the churn C.