baber/WOPTO huggingface dataset:
Patent GB-1496912-A (GB)
Title: Honing machine with analogue control apparatus
IPC: B23Q15/007
Filed: 1975-07-21
Abstract: 1496912 Analog control system MASCHINENFABRIK GEHRING GmbH & CO KG 21 July 1975 [24 July 1974] 30402/75 Heading G3N An electric analog control system is used with a cyclical honing machine to vary the stroke length of the machining cycle. Potentiometers 2, 3 are independently adjusted by a control knob to set the machine movement range limits and potentiometer 1 resistance is varied with the machine movement. The resulting currents are compared in units 4, 5 to reverse the machine motion when the limits have been reached and so on until signal drive 6 is released automatically or by the operator. Relay 12 switches on the honing tool rotation and feed. In another embodiment, Fig.2 (not shown), an extra logic is provided which allows adjustable reversing delay at one reversing position.
Patent GB-464201-A (GB)
Title: Improvements in or relating to clutches
IPC: F16D13/64
Filed: 1936-11-09
Abstract: 464,201. Friction clutches ; linkwork. AKT.-GES. VORM. SEIDEL & NAUMANN, and EIBERT, F. Nov. 9, 1936, No. 30435. [Classes 80 (ii) and 80 (iii)] One member g, Fig. 1, of a friction clutch for conveying rotary, arcuate, or rectilinear motion, has a plane face adapted to be engaged by arched elements f carried by the other member d and formed of rubber or other resilient material, the elements rolling upon the member g and being distorted in the direction opposite to the direction of movement upon contact with the member g, whereby an adhesive action is set up. The elements f are formed of bent rubber strips secured by clasps e. Alternatively, the elements f may be carried on both sides of a loose member h, Fig. 5, arranged between a pair of plane-faced clutch members d, g. In this case, the elements may be secured by clasps, or they may be integral with the rubber member h, as shown. In the case of clutches for conveying rectilinear or arcuate motion, the loose member h is guided.
Patent GB-266481-A (GB)
Title: Improvements in drying cylinders
IPC: F26B13/18
Filed: 1925-12-04
Abstract: 266,481. Evans, W. P. Dec. 4, 1925. Rollers or cylinders, hollow.-The end-plate of a drying cylinder is formed with a projection a having a steam inlet pipe B which is supported at its inner end by a flexible copper strip c to which it is secured either by soldering or by lock-nuts disposed on each side of the strip. A circulation of the steam in the cylinder is obtained by the injector effects of the steam pipe D and the passages a<1> formed in the projection a. Condensate is removed from the cylinder by a. scoop E.
Patent GB-340639-A (GB)
Title: Manufacture of ª‡-hydroxyanthrones
IPC: C07C50/34
Filed: 1929-10-10
Abstract: Anthrones.-a -Acyloxyanthraquinones are reduced in neutral or feebly acid solution or suspension whereby reduction products are obtained which are different from those derived from the free a hydroxyanthraquinones.  Reduction is carried out by means of a reducing agent such as sodium hydrosulphite, zinc dust, or hydrogen in the presence of a catalyst such as nickel, and in a solvent such as dilute acetic acid, alcohol, decahydronaphthalene or water. Preferably a temperature between 50 DEG  and 100 DEG  C. is maintained.  In examples are reduced 1-acetoxy- (or benzoyloxy-) -anthraquinone, 1.8-diacetoxyanthraquinone to an acetoxyhydroxyanthrone, 1.5-diacetoxyanthraquinone, 1.4-diacetoxyanthraquinone and 1.2-diacetoxyanthraquinone to isomeric acetoxyhydroxyanthrones, and 5.8-dichloro-1.4-diacetoxyanthraquinone. These a -acyloxyanthraquinones are prepared by causing an acyl chloride or a carboxylic acid anhydride to act on an a oxyanthraquinone in presence of pyridine, sodium acetate or concentrated sulphuric acid.  The Specification as open to inspection under Sect. 91 (3) (a) refers also to the reduction of 1.4-diacetoxy-2-methylanthraquinone to an acetoxyhydroxymethylanthrone.  This subject-matter does not appear in the Specification as accepted.
Patent GB-209539-A (GB)
Title: Improvements in and connected with the manufacture of wrapping material for enveloping goods
IPC: B65D65/40
Filed: 1922-11-11
Abstract: 209,539. Lloyds Packing Warehouses, Ltd., and Allen, H. Nov. 11, 1922. Grant of Patent revoked. Wrapping-materials. - A waterproof wrapping-material is made by attaching to hessian or India tarpaulin b a lining a of " crepekraft " paper by means of an elastic stearine pitch or pitch adhesive c. The paper may be attached to one or both sides of the hessian &c.
Patent GB-991885-A (GB)
Title: Improvements relating to step-down transmission mechanisms
IPC: B23Q5/40
Filed: 1960-09-07
Abstract: 991,885. Screw and nut mechanism; cams. R. E. HAYDEN. Sept. 1, 1961 [Sept. 7, 1960], No. 30885/60. Headings F2K and F2Q. A slow linear motion is produced differentially from two intermediate rotary members driven at slightly different speeds from a rapidly rotating input shaft. In a feed mechanism for a drill head (not shown) axial feed movement of a shaft 34, against a return spring 38, is produced by the relative rotation of an externally threaded sleeve 28, slidably keyed to a shaft 25 driven by pulley 27, and a nut member 44 rigid with a rocking arm 41 pivoted at 42 on a flywheel 16 driven by a pulley 20. The pulleys 27, 20 are driven from a drive shaft 11 by a pair of pulleys 27, one of which may be of variable effective diameter to predetermine the relative speeds of the pulleys 27, 20. A piston 47 axially movable under manual control of a lever and cam 52, 53 has a skirt bore 48 which coacts with a ball 50 on the lever 41 to hold the nut member 44 in engagement with the threaded sleeve; a cam ring 49 in the skirt allowing release of the member 44 when the piston is moved axially by the lever 52. In a second embodiment (Fig. 3) the drill spindle 64 is moved axially by a quill 77 acted on by a face cam 60 and cam follower 61 rotated slowly with respect to each other by pulleys 65, 68 respectively. Slow feed and fast return or intermittent progressive feed may be obtained by suitable design of the face cam 60.
Patent GB-988120-A (GB)
Title: Zoom type of optical system for microscopes
IPC: G02B15/14
Filed: 1963-08-06
Abstract: 988,120. Microscope lens systems. BAUSCH & LOMB Inc. Aug. 6,1963 [Sept. 10, 1962],  No.30921/63. Heading G2J. An optical system for a microscope comprises a continuously variable focal length objective 11,12, having a magnification range of at least 4:1 and an eyepiece 14 spaced a distance L from the object 0, the objective comprising (a) a movable front lens member 11 of positive power consisting of a front compound lens A, B, of focal length F 1  and a rear singlet lens C of focal length F 11  spaced therefrom such that (b) a movable rear lens D of negative power having a focal length F 111  such that (c) an aperture diaphragm 16 positioned at a fixed distance forwardly from front lens A and mounted to move therewith (d) the variable air spaces, S 1  between object 0 and lens A, S 3  between lenses C,D,and S 4  between lens D and eyepiece 14 are such that For least magnification For highest magnification The eyepiece 14 consists of two lenses E, F and optical data are given for one example of the optical system shown.
Patent GB-645529-A (GB)
Title: Improvements in or relating to chucks or work holding devices
Inventor: DEVINE JOHN ALEXANDER
IPC: B23B31/18
Filed: 1948-11-29
Abstract: 645,529. Chucks ; mandrels. MINISTER OF SUPPLY. Nov. 29, 1948, No. 30977. [Class 83 (iii)] A chuck comprises a plurality of semicircular jaws 9 which are moved to grip a workpiece 15 by means of members 5 provided with teeth 6 engaging teeth 10 on the jaws, the members 5 being moved radially by means of a scroll 1 rotated by means of a bevel pinion 2 engaging teeth 3 thereon. The jaws are mounted in guides 8 formed in the chuck body and are supported for part of their length in recesses 16 in a mandrel 17, the latter being formed with a centre 19 to receive the tailstock point in cases where the workpiece has an axial opening. In a modification, the scroll and members 5 are replaced by pinions each engaging one of the jaws.
Patent GB-1240261-A (GB)
Title: Vehicle body doorway
Inventor: HANDS ALBERT HENRY
IPC: B60H1/26
Filed: 1967-07-05
Abstract: 1,240,261. Omnibus bodies. LEYLAND MOTORS Ltd. 28 June, 1968 [5 July, 1967 (2)], Nos. 30978/67 and 30980/67. Heading B7B. An omnibus has a duct leading from the heating and ventilating unit to an aperture obturated by a passenger door when it is closed so that on opening the door a curtain of warm air is produced in the doorway.
Patent GB-286772-A (GB)
Title: Improvements in or relating to brick making
IPC: C04B33/135
Filed: 1926-12-07
Abstract: 286,772. Hadfield, G. H. Dec. 7, 1926. Clay &c. plastic compositions. - Bricks are made of clay mixed with clinker, from boiler ash, house refuse, destructor ash &c., which has been substantially freed from carbonaceous material by known methods, e.g. as described in Specifications 244,579, [Class 82 (ii), Washing granular &c.], and 248,449, [Class 111, Sewage &c.].
Patent GB-653617-A (GB)
Title: Improvements in or relating to electrical measuring devices
Inventor: FELDHUSEN IGOR VLADIMIR
IPC: G01R1/30
Filed: 1946-10-18
Abstract: 653,617. Telephone transmission measurements; electromagnetic and electrostatic measuring instruments. STANDARD TELEPHONES & CABLES, Ltd. Oct. 18, 1946, No. 31051. [Class 37] The invention is concerned with adaptation of electrometers and thermo-galvanometers to serve as differential voltage and current indicators, for example in gain or loss measuring sets for telephone transmission testing. In Fig. 2, which is illustrative of the latter, the invention provides an electrometer or thermogalvanometer to which may be applied directly the unamplified outputs of the test channel 13 and variable attenuator 14, thus avoiding the use of the form of detector unit shown at 15 which entails accurate matching of amplifiers and external detectors. In Fig. 3b a string " Perucca " electrometer is adapted by providing two pairs of fixed electrodes 23, 24 and 29, 30 and two electrically separate needles 27, 28 which latter is effected by dividing the plating on the spring into two mutuallyinsulated portions 25, 26. If, as shown, Fig. 3c, two independent A.C. voltages of zero phase difference are appropriately applied to the electrometer, the resultant torque and thus the meter deflection will depend on the difference between the two voltages. A " Lindemann " electrometer, Figs. 4a, 4b, 4c and 4d (not shown), is equivalently modified by division of the horizontal torsion fibre or string into two insulated sections so that two vertical needles may be provided one above and one below the string to co-operate with upper and lower quadrant pairs respectively. A " Lindemann " differential electrometer, Fig. 5, having an undivided needle system, may be realized by connecting the needle 43 to a tapping point on a potential divider which bridges quadrants 31, 33 and applying the voltages to be compared to quadrants 31, 32 and 33, 34, respectively, and adjusting the tapping until the needle is at the electrical centre 47. Under these conditions the deflection produced is proportional to the square of the difference between the two voltages. A capacitative voltage divider may be used and the plates 32, 34 strapped as shown if the inputs 1 and 2 are unbalanced to earth. It is stated that the " Perucca " instrument may be similarly modified and that this may be extended also to the Dolezalek quadrant electrometer for differential working. A Duddell thermo-galvanometer is modified, Fig. 6b, for differential use by providing two identical thermo-couples 53, 53a, preferably antimonybismuth, in the moving coil 52. The currents to be compared flow in the identical thermocouple heaters 54, 54a, thus thermo E.M.F.'s drive currents around the coil 52 in opposite directions, and the meter reading is proportional to the difference between the two supply currents. The Duddell instrument may be otherwise modified by providing two identical moving coils, Fig. 6c (not shown), with identical thermo-couples and heaters so that opposing torques act upon the movable system.
Patent GB-299469-A (GB)
IPC: H01J9/38
Filed: 1928-10-26
Abstract: 299,469. Loewe-Audion Ges. Oct. 27, 1927, [Convention date]. Vacuum tubes.-Conductors connecting electrodes temporarily are interrupted by eddy currents induced from outside the valve. As shown, a strip 9 of magnesium with a hole 13 punched in the centre is mounted between holders 10, 11 connected between the anodes 8 of a multiple valve, so as to facilitate removal of gas from those electrodes during the evacuation process. After evacuation a current is induced in the strip by a winding outside the valve so as to melt the strip at the centre. The diameter of the hole is about five-sixths of the width of the strip. A mica shield 15 is arranged below the strip. Magnesium dispersed during the melting of the strip assists evacuation. A non-conductor mounted between perforated magnesium strips may be freed by melting the strips by induced current.
Patent GB-1056788-A (GB)
Title: Improved window construction
IPC: E06B3/12
Filed: 1964-08-04
Abstract: 1,056,788. Casement windows. E. KOLLER. Aug. 4, 1964 [Aug. 8, 1963], No. 31159/64. Heading E1J. In a casement window. the sash 14 of metal or plastics has two ribs 13, 14 of equal height confronting the frame 50 which has a resilient material stop strip 55 accommodated in a groove 70 to cooperate with one rib 14 and a sealing strip 10 accommodated in groove 71 confronting the sash to cooperate with the other rib 13, the strips being interchangeable in the grooves 70, 71 to provide for an inwardly or outwardly opening window. The frame has a groove between the ribs 10, 74 which along the bottom side of the window functions as a water drainage connected to the outside by a bore in the stop strip 44 (Fig. 3, not shown). The strips may be integral with a support which is mounted in a single groove in the frame in two alternative positions. The bottom of the channels may have slots 54 covered by the strips 10 to render the frame more heat insulating and a heat insulating strip 61 may be inserted between the two rib carrying portions 13, 14 and the sash may have sealing and sound damping strips 58, 59 in engagement with each other and accommodated in opposing grooves in the frame and sash. A sealing strip 53 is mounted between the frame 50 and end of wall 52. A metallic support 56 may mechanically support the resilient stop 55.
Patent GB-833895-A (GB)
Title: Toy helicopter adapted to be shot into the air by extraneous means of projection
IPC: A63H33/20
Filed: 1957-10-04
Abstract: 833,895. Toy helicopters and parachutes. KRAUTKRAMER, A. Oct. 4, 1957 [March 5, 1957], No. 31200/57. Class 132(3) [Also in Group XXXIII] A toy helicopter, which can be shot into the air by a rubber band 12 or by a spring pistol, carries a parachute 10 and a weight within its body 1 and has rotor blades 4 and 5 held in a folded position during ascent of the toy and released when the toy reaches its highest point. As shown, the blades 4 and 5 are pivotally attached to the body at 2 and 3, tensioned by a rubber band 11, Fig. 2, and held in the folded position, Fig. 1, by weights 6 and 7 on levers 8 and 9. At the apex of the toy's trajectory the weighted levers change their positions and release the blades which then snap open, a hook 13 on the blade 5 ejecting the parachute and weight from within the body. The body, which maybe a frame or hollow tube; has a rubber buffer 14.
Patent GB-822782-A (GB)
Title: Improvements relating to closure constructions for containers
IPC: B65D47/06
Filed: 1957-10-04
Abstract: 822,782. Container closures. AMERICAN FLANGE & MANUFACTURING CO. Inc. Oct. 4, 1957 [Dec. 28, 1956], No. 31213/57. Class 125(3). In a container closure construction having a reversible spout a neck 4 surrounding the aperture in the container wall has its side wall 21 turned downwardly and inwardly to form a seat for a gasket 26 and a reversible spout 7 closable by a screw cap 17 has a flange 9 which engages the gasket and is held in position by an apertured screw cap 30, a closure disc 37 being clamped in position by the cap 30 when the spout is in the inverted storage position.
Patent GB-346681-A (GB)
Title: Improvements in or relating to bituminous compositions
IPC: C08L95/00
Filed: 1929-10-15
Abstract: Tar or other bituminous material, especially for road-making, is fluxed with a diluent containing unsaturated hydrocarbons, for example shale oil especially "topped" oil, and solar oil.  Lime or other compound reacting alkaline, e.g. barium oxide, magnesium oxide, basic silicates, Portland or other cements and carbides, may be added to accelerate the hardening.  In an example 100 parts of tar are mixed with 20 parts of bitumen at 50 DEG  C. and this mixture is fluxed with 20-25 parts of shale oil which has been topped up to 190 DEG  C.  The mixture is applied to 30-40 times its weight of stone splits or grit which has previously been mixed with 1/2 -1 per cent of powdered lime.
Patent GB-1402544-A (GB)
Title: Metal oxide fibres
IPC: D01F9/08
Filed: 1971-07-05
Abstract: 1402544 Mixed metal oxide fibres IMPERIAL CHEMICAL INDUSTRIES Ltd 23 June 1972 [5 July 1971] 31419/71 Heading C1A A mixed metal oxide fibre is prepared by fibrizing a viscous composition comprising an organic solvent and (a) an alkoxide of a first metal and an alkoxide of a second metal or (b) a mixed alkoxide of said metals wherein the oxides of said metals can form together a spinel, removing solvent from the fibre thus formed and heating the fibre to decompose the metal alkoxides or mixed metal alkoxide to form the mixed metal oxide. The first metal may be Mg, Zn, Mn, Fe, Co, Ni, Cu, Ca or Ti and the second metal, Al, Fe, Cr, Ti, Ru, Mg, Fe, Co, Ni, Cu or Zn and the alkoxide may contain methyl, ethyl, propyl or butyl groups. The solvent may comprise, benzene, toluene, halogenated hydrocarbons, alcohols, ethers and mixtures thereof and the metal alkoxide may be present therein in amounts substantially proportional to the stoichiometric ratio of the metals in the mixed oxide. An organic polymer may be added to the composition to increase the viscosity thereof to 0À1 to 100 poise to assist fibrizing which may be carried out by centrifugal spinning, drawing, blowing or extrusion through a spinneret. The resulting fibres may be contacted with water vapour to partially hydrolyse the alkoxide of the first and/or second metal or the mixed alkoxide of said metals and to form a gel from which the solvent may be removed at 30‹ to 150‹ C. and the fibres subsequently heated to at least 150‹ C. to produce the mixed oxide or alternatively the fibres may be subjected to steam at 200‹ to 500‹ C. The mixed oxide fibres may be heated to at least 800‹ C. to produce the spinel crystal form.
Patent GB-203581-A (GB)
Title: Improvements in and relating to apparatus for filling bottles, jars, & other vesselswith regulated quantities of liquids
IPC: B67C3/28
Filed: 1922-11-17
Abstract: 203,581. Burns, J. Nov. 17, 1922. Bottling; filling jars and like receptacles.- In apparatus for filling bottles, jars, and other vessels with regulated quantities of liquids or semi-liquids in which a row of filling-nozzles is provided and simultaneously operable valves are arranged to control the flow of liquid &c., the valves are controlled by mechanical means not dependent on the vessels for its action and a horizontal reeiprocating table is preferably provided to support the bottles &c. and bring them into and out of filling position. The distributing-box 2, connected by a pipe 3<a> to a supply tank, is arranged at the upper end of the main frame 1 of the apparatus and connected by ,pipes 3 to valve casings 4 which terminate at the bottom in filling-nozzles 5. Each pipe 3 is provided with a hand-controlled cut-off cook 6 and each casing 4 contains an inverted conical plug valve 7. The! stems 8 of the valves are screwed adjustably into the lower ends of hanging shackles 9 pivotally mounted to a beam 11 which is mounted in the forked upper ends of the frame and rests at the ends upon cams 13 carried by a shaft 12. A heating &c. fluid may be circulated through the hollow jacket 14 surrounding the casings 4. The shaft 12 is driven through change-speed gearing comprising a set of stepped toothed pinions 17 either of which - can be locked to the shaft by means of a key 39 connected by an extension 40 to a collar 18 having pins 19 engaging the forked ends of a had-lever 20 pivoted on a bracket 22 on the frame 1. The table 26 which is wide enough to carry two rows of bottles 25 slides in horizontal guides 27 and is actuated by a toothed segment 36 gearing with a rack 37 on the under side of the table. A pin 29 on a disc crank 28 on one end of the shaft 12 engages a slot in a lever 30 pivoted at 31 to the frame, and the lower arm of the lever engages alternately two arms 32, 33 on a boss 34 on the shaft 35 carrying the segment 36. The intervals between the reciprocations of the table are occupied by the filling of the bottles 25 beneath the nozzles 5. Cups 41 with studs 38 to screw into holes in the table may be provided to position the bottles &c. on the table, and adapters 42 of different sizes may be provided to adapt the cups to different-sized bottles &c.
Patent GB-210561-A (GB)
Title: Progressive change speed gear
IPC: F16H29/00
Filed: 1922-11-17
Abstract: 210,561. Mannheim, C. Amedee-. Nov. 17, 1922. Variable-speed gearing comprises an epicyclic bevel train combined with the elements of a Hook's joint. In a form shown in Figs. 1 and 2, driving and driven shafts 1. 3 are in line and the control is effected bv a disc 14 of variable inclination, which does not rotate. A clutch 4 can connect the shaft 1 to the shaft 3 for a direct drive, or alternatively to an intermediate shaft 2 for variable and reversed drives. A central star 9 carries a pair of bevels 20, which revolve in a plane about the main axis, and a pair 23, which revolve about the inclined axis. A yoke 13 supporting the latter pair turns loosely upon the disc 14. There are two pairs of ratchets 22, 24. A combined rotation and gyration of the gears 20 is passed through a train 21, 26, 27, 28 to a gear 29, which turns in the same direction as the driving- shaft. Reversed driving is obtained by a double clutch 30 adapted to disconnect the gear 29 and engage the gear 27. In another type of arrangement shown in Fig. 9, the inclined disc 14 is the driving-element. This has a swinging conical motion about the centre of the star 9. The ratchet pinions 23 partly turn and partly gyrate, so that end gears 26 are driven continuously in opposite directions. A clutch 4 yields direct or variable drives as before and clutches 30 are used alternatively for forward and reversed driving. Forms of reversible friction grips are shown in Figs. 18 and 19. The pawl 50 envelops an isosceles triangle which jams in both directions. Stops 51 can be manipulated to prevent jamming in either direction. A set of these tipping pawls in mutual contact may be used with a single pair cf stops for controlling.