baber/WOPTO huggingface dataset:
Patent GB-603673-A (GB)
Title: Improvements in and relating to centreless grinding machines
IPC: B24B53/08
Filed: 1945-10-27
Abstract: 603,673. Trueing rotating tools. CLARKE AIRCRAFT PRODUCTS, Ltd., and ASH, J. T. Oct. 27, 1945, No. 28449. [Class 60] In a centreless grinding machine having a former for non-parallel trueing of both grinding and control wheels situated between the wheels, the normal feed mechanism of the machine is used to advance the diamond or cutter towards either the grinding wheel or the control wheel, by mounting the control member or former for movement with that wheel which is fed towards the other wheel. An arm 13 movable in guides along a line parallel to the axes of the grinding and control wheels 12, 10 carries reversibly a casing 14 containing a spring-loaded plunger, one end of which carries a diamond 16 and the other end of which cortacts the former 20 carried by arms 22 pivoted to the casing 11 of the control wheel 10 which can be fed up to the grinding wheel 12. When trueing the control wheel 10, Fig. 1, an abutment 31 on the arm 22 is held by a spring 37 against a fixed stop 32 carried by the worksupport 33 ; movement of the control wheel towards the grinding wheel then feeds the control wheel to the diamond. When trueing the grinding wheel 12, Fig. 3, the casing 14 is reversed ; another abutment 34 on the arm contacts a screw stop 35 on the casing 11 ; movement of the control wheel towards the grinding wheel then feeds the diamond in to the grinding wheel. On completion of trueing the arms 22 are swung into an upright position.
Patent GB-298377-A (GB)
Title: An improved method for use in reproducing solid objects by photographic means
IPC: G03F7/00
Filed: 1927-10-26
Abstract: 298,377. Morioka, I. Oct. 26, 1927. Drawings to Specification. Solid objects, reproducing.-To produce a solid model of an object, templets conforming to a series of adjacent profiles are made from contour photographs obtained by photographing the object from a series of positions, the illumination of the object being confined to a vertical beam of light at a constant acute angle to the camera axis. From the foreshortened profiles thus obtained corrected profiles are obtained by photographic reproduction, and the templets made directly from these.
Patent GB-824087-A (GB)
Title: Improvements in or relating to wheel lathes
Inventor: TAYLOR STANLEY
IPC: B23B5/28
Filed: 1956-09-18
Abstract: 824,087. Wheel-lathes; centering work. SCOTTISH MACHINE TOOL CORPORATION Ltd. Sept. 17, 1957 [Sept. 18, 1956], No. 28464/56. Class 83 (3). A wheel-lathe is provided with a pair of rails disposed transversely to the lathe-axis across the bed of the lathe so that the wheels may be turned while in situ on a vehicle. Each rail is adapted to present a transverse V-shaped notch so that a wheel-pair is automatically centred in the vertical plane containing the axis of the lathe. The V-notch 6 may be provided on the underside of a block 4 adapted to fit between two rail portions 2A, 2B, and to present a continuous surface 5 for a railway vehicle to pass over the lathe-bed 1. When the wheel-set 7 to be turned approaches the lathe centre-line 8, the block 4 is inverted to present the V-notch to a wheel, which is thus automatically brought into the centre-line. The notch or notches may be provided on a rotatable disc arranged on an axis within the gap, either parallel or perpendicular to the rails. Specification 824,088 is referred to.
Patent GB-1479829-A (GB)
Title: Parosol tilting mechanisms
IPC: A45B17/00
Filed: 1975-07-07
Abstract: 1479829 Locking hinges G WOHLHUTER 7 July 1975 [5 July 1974] 28471/75 Heading E2F In a tilting mechanism for parasols, upper 4 and lower 3 tubular sections of the parasol pole are interconnected by a pivot pin 5 through a mortise 2a and tenon 6 connection formed of upper and lower members 2, 1 on which the upper and lower tubular sections 4, 3 respectively are fitted. Associated with the upper member 2 is a spring-urged locking bolt 11 having a smaller diameter portion 13 adapted to engage in one of a number of recesses or notches 7, 8, 9 to lock the upper section of the parasol pole 4 in variable angular positions. Movement of the locking bolt 11 is controlled by a member 14 having arms 15, 16 engaging slots in the locking bolt 11. The sliding movement of the member 14 is limited by a stud 17 engaging a small groove 18 formed in the upper member 2. In an alternative embodiment (Figs. 5 and 6, not shown) the recesses provided in the tenon extend parallel to the pivot pin and are adapted to be engaged by a bolt with a hooked member at one end which selectively engages the recesses under the influence of a spring.
Patent GB-1219627-A (GB)
Title: Improvements in or relating to fluid control amplifiers
Inventor: COCKERAM DAVID ANTHONY
IPC: F15C3/02
Filed: 1968-06-14
Abstract: 1,219,627. Valves. TOWLER HYDRAULICS Ltd. 2 June, 1969 [14 June, 1968], No. 28494/68. Heading F2V. [Also in Division G4] A fluid logic element has a number of coaxial chambers of various cross-sectional areas and containing individually movable sliding elements 3-7 and a ball 8. The cross-sectional areas of elements 3 and 4 lying on one side of ball 8 are greater than that of the element 7 on the other side. Ball 8 seats against the shoulders of chamber 12 or 13 to pass fluid from passage 19 or 20 to output 23. By suitable connection of certain of the passages 16-22 to control signal inputs and constant pressure supplies, and by venting others, output 23 represents the logic function NOR, OR, AND, or NAND. The connections are described with reference to Figs. 2-5 (not shown) respectively. Reference is made to mechanical inputs through either of the ends of the element.
Patent GB-1306834-A (GB)
Title: Antibronzing agents for photographic silver images
IPC: C07D285/135
Filed: 1970-06-12
Abstract: 1306834 Preparation of 2-mercapto-1,3,4- thiadiazolyl-5 AGFA-GEVAERT AG 12 June 1970 [14 June 1969] 28497/70 Heading C2C [Also in Division G2] 1 - Naphthyl - 3 - (2 - mercapto - 1,3,4 - thiadiazolyl-5)-urea is prepared by adding dropwise #-naphthyl isocyanate to 2-mercapto-5-amino- 1,3,4-thiadiazole in dimethyl formamide and stirring at 50 C.
Patent GB-427107-A (GB)
Title: Improvements in and relating to web roll supports
IPC: B65H16/02
Filed: 1933-10-16
Abstract: 427,107. Feeding webs. HART, H., 9, Kingsway, London.-(Wood Newspaper Machinery Corporation ; 501, 5th Avenue, New York, U.S.A.) Oct. 16, 1933, No. 28533. [Class 100 (i)] A web-roll supporting-device adapted to beadjusted for different widths of web-roll and for lateral register of the web comprises roll supports keyed to a rotatable shaft and means to shift the supports, together or separately, along the shaft. The shaft 11 is rotatably supported in standards 10, Fig. 2, and is provided with key ways 14, Fig. 4, extending from opposite ends of the shaft, with which engage keys on the roll-carrying spiders 12. Screw-threaded rods 16 are arranged in the key ways and pass each through threaded holes in one of the keys. The rods 16 are rotated through gears 18 by motors 20, one of which is mounted on the hub of the worm wheel 13 through which the shaft 11 is rotated. Thus by using the motors together or separately the spiders may be moved together for lateral register of the web or separately to accommodate different widths of web-rolls. In a modification, shown in Figs. 5, 9 and 10, only one screwed rod 16 is used, which lies outside the shaft 11. In the hubs of each spider is mounted a cam 22 which can be rotated on a pin 23 by a handle 25. Eccentric slots 26 in the cam engage rollers 27 mounted on half nuts 28 which lie about the rod 16. By rotating the cam the halves of the nut can be separated and then, when the rod 16 is rotated by the motor 20, the corresponding spider will not be moved along the shaft 11. The handles 25 are so arranged that, when the half nuts are open, they lie in the path of the web-roll which will be last used, so that when the roll is in position the spiders must be clamped to the rod 16. Limit switches mounted on the standards 10 and adapted to be opened by the spiders at the end of their travel are arranged in series with the motor 20 and prevent damage to the mechanism.
Patent GB-1308966-A (GB)
Title: Electrical transformer
IPC: G05F3/06
Filed: 1970-06-12
Abstract: 1308966 Automatic voltage regulation WESTINGHOUSE ELECTRIC CORP 12 June 1970 [24 June 1969] 28562/70 Heading G3X [Also in Division H1] A constant voltage transformer comprises a magnetic core 22 having first, second and third regions 24, 26, 28 inter-connected to provide closed magnetic pattis, an input winding 46, providing a first A.C. flux in said first region, an output winding 52 and a capacitor 54 connected to provide a resonant circuit 50, providing a second A.C. flux in said third region, with said second region being free of windings, characterized in that the first and second A.C. fluxes vectorially add in said second region, saturating said second region during a portion of each half cycle of said second A.C. flux. The first and third regions are non- saturating, said second region shunting the major portion of the first A.C. flux away from the output winding when said second region is unsaturated. The saturation of said second region forces the major portion of a further increase in said first A.C. flux to link said output winding for a small portion of each half cycle, transferring energy into said resonant circuit to sustain the oscillation thereof. The cross-section of the second region of the cord may be less than the cross-section of the first and third regions. The magnetic core may be constructed from wound strips. When non-magnetic gaps (90), (90'), (92), (92'), (154), (186), (130) are incorporated in the magnetic core Figs.7,8,10, and 12 (not shown), a suitable non-magnetic material, such as sheet-type plastics materials, may be disposed in said gaps. The value of the capacitance 54 is selected such that the resonance circuit may be readily tuned to the source frequency. On overload or if the supply voltage falls too low the transformer switches from its parametric mode of operation to a low voltage loose coupled operation.
Patent GB-847395-A (GB)
Title: Improvements in friction clutches or brakes
IPC: F16D27/01
Filed: 1957-09-11
Abstract: 847,395. Friction clutches; clutch-brake combinations. HEINE, A. Sept. 11, 1957, No. 28632/57. Class 80 (2). [Also in Groups XXXIV and XXXV] A friction clutch or brake is engaged by a permanent magnet causing one clutch &c. member to move axially into engagement with another clutch &c. member, control of the clutch &c. being effected by moving either the permanent magnet or a magnetic shunt perpendicularly to the lines of force. In one form, a radially magnetized ring 12, Fig. 1, is moved to the right from between soft-iron pole-rings 9, 10 when it is desired to disengage friction clutch members 3, 7. The soft-iron pole-rings 9, 10, which rotate with the clutch member 7, co-operate and engage with a soft-iron channelshaped pole-ring 6 in the clutch member 3. Axially directed pins (not shown) carried by the permanent magnet ring 12 are connected to the inner race of a bearing having its outer race fast in an axially-movable control fork or the like. Disengagement of the clutch members 3, 7 may be assisted by weak springs. In one modification, a permanently-magnetized ring 112, Fig. 2, is secured between soft-iron pole-rings 109, 110 carried by a clutch member 107 and co-operating with similar soft-iron pole-rings 118, 119 carried by a clutch-member 103. The clutch may be disengaged by one or other of two methods. Either a soft-iron ring 121, acting as a magnetic shunt, may be moved leftwards from between the two pole-rings 118, 119, thus breaking the magnetic circuit, or alternatively a soft-iron shunt-ring 116 may be slidden leftwards into position between the two pole-rings 109, 110, thus short-circuiting the ring magnet 112. If desired, both of the soft-iron rings 121, 116 may be moved simultaneously. In a further modification, the device is applied to a clutchbrake combination having a first clutch disc 203, Fig. 3, a second clutch disc 207 and a brake disc 303. The clutch disc 207 carries a permanently-magnetized ring 212 and control of the clutch-brake is effected by a pair of axially slidable soft-iron shunt-rings 221, 321. In the position shown, the shunt-ring 321 has been moved leftwards to lie between its associated pole rings 318, 319 and complete the flux path of the permanent magnet ring 212. The clutch disc 207 is accordingly engaged with the brake disc 303, the shunt-ring 221 having also been slidden leftwards to break the flux path through the soft-iron pole-rings 218, 219. By sliding the two shunt-rings 221, 321'to the right; the flux path through the pole-rings 318, 319 is broken, to disengage the clutch disc 207 from the brake disc 303, and simultaneously the flux path through the pole rings 218, 219 is completed, to engage the clutch disc 207 with the clutch disc 203. The device may also be applied to multiplate friction clutches. The permanentlymagnetized rings are preferably made from a ceramic material including poly-oxides of iron, barium and other materials.
Patent GB-287093-A (GB)
Abstract: 287,093. I. G. Farbenindustrie Akt.- Ges. March 14, 1927, [Convention date]. Fungicides.-Organic arsenic compounds, such as aminophenylarsine oxide, to be used for immunizing seeds by dry or wet treatment are converted into the colloidal state. The production of the colloidal arsenic compounds can be carried out by the process described in Specification 243,361 with reference to mercury compounds. According to an example the colloidal arsenic compound is mixed with talc. Other fungicides or bactericides may be added to the arsenic compounds.
Patent GB-905877-A (GB)
Title: A process for the production of dibasic organic di-per carboxylic acids
IPC: C07C409/24
Filed: 1960-08-18
Abstract: Dibasic organic di-percarboxylic acids are made by reacting an organic dicarboxylic acid or anhydride with concentrated hydrogen peroxide in the presence of boron trifluoride or boron trifluoride monohydrate.  Preferably at least two mols, advantageously more than 2.5 mols, of hydrogen peroxide are used to 1 mol of acid.  Solutions containing at least 90% by weight of H2O2 and 1.2 to 2.5 mols of boron trifluoride to 1 mol of acid are preferred.  Concentrated sulphuric acid may be added for better homogenisation.  Examples describe the preparation of di-persuccinic acid, di-peradipic acid, di-perglutaric acid and di-persebacic acid.  Specification 791,875 is referred to.
Patent GB-991757-A (GB)
Title: Improvements in or relating to crushers
IPC: B02C4/12
Filed: 1961-08-09
Abstract: 991,757. Jaw crushers. PREPARATION INDUSTRIELLE DES COMBUSTIBLES. Aug. 9, 1961 [Aug. 26, 1960], No. 28798/61. Heading B2A. A method of feeding products to be crushed and containing lumps to toothed roller and concave plate crushers comprises directing a supply of the products to the crusher so that the average trajectory of the supply is curved and substantially tangential to the bisectors of the nip angles of the lumps and arranging that the supply has an input velocity at the most substantially equal to the peripheral velocity of the roller and at least equal to half the peripheral velocity of the roller. The apparatus shown comprises an endless belt 12 for feeding material in the direction 18 between a toothed roller 4 and a concave plate 7. The roller 4 has teeth 5, 6 of different sizes. The plate 7 resembles a logarithmic spiral in cross-section and is hinged about a fixed spindle 8 and about a pin 10 connected to a resilient device 11. The belt 12 passes around drums 13, 14, the position of the drum 13 being adjustable. In a modification, the apparatus comprises a twostage crusher, the roller of the first stage forming the feeding device for the second stage.
Patent GB-248448-A (GB)
Title: Improvements in and relating to condensing steam power plants
IPC: F01K11/02
Filed: 1924-12-02
Abstract: 248,448. Parsons, Sir C. A., and Cook, S. S. Dec. 2, 1924. Surface condensers. - A condensing steam power plant has a plurality of condenser sections d each provided with a flap valve i and operating gear n, o so that any section may be independently isolated for repairing or cleaning. Each valve is loosely mounted on a lever l and its freedom is limited by a pin on the valve projecting into a curved slot in the lever. Before opening the valves the pressure on the two sides is equalized through small cross connections provided with valves. An additional condenser section may be provided to be available in cases of overload. A common circulating pump and a common air pump may be provided for the condenser sections, or each section may have a separate circulating pump and air pump.
Patent GB-323741-A (GB)
Title: Improvements in locks
IPC: E05B67/36
Filed: 1928-10-08
Abstract: 323,741. Clare, E. W. Oct. 8, 1928. Portable locks.-A portable lock is provided with an outer rotatable ring casing, and has in one of its flat faces a non-circular opening which admits projections from mortice bolts in the doors so that this face can lie against a bearing surface on each door. The rotatable casing 1 has internal shoulders 2, 3 which receive a flange 5 of an inner casing 6 and a cover plate 4. Screws 7 holding the plate 4 to the inner casing 6 are inaccessible when the lock is in place. The plate 4 may extend beyond the shoulder of the rotatable casing 1 and be bevelled , and both casings 1 and 6 may be of hardened steel. The projections 21, 22 of the sliding mortice bolts 25, 26 closely fit an opening in the plate 4 which rests against semicircular bearing surfaces 33, 34 on the doors in which position a bolt 9 of the lock can be shot into apertures 23, 24 in the projections. The latter, which are thus covered by the lock, may be fixed or movable and notches 31, 32 in the doors to receive the projections may be extended to allow them to be drawn together. If the door edges are rabbeted they are notched to receive the projections. The lock itself may be of the double throw lever type and comprise a bolt 9 integral with or attached to a pin and slot guided tail plate which has notches 13, 13<a> and a stud 17, and is operated by a key. In the locked position of the bolt the stud 17 engages notches 16, 16<a> in tumblers 15 and in the release position it engages notches 18.
Patent GB-1041606-A (GB)
Title: Improvements relating to seals for pipe joints
Inventor: WILSON IAN MACDONALD
IPC: F16J15/10
Filed: 1963-07-23
Abstract: 1,041,606. Joint-making packing. HENRY CROSSLEY (PACKINGS) Ltd. June 24, 1964 [July 23, 1963], No. 29059/63. Heading F2B. [Also in Division B5] A seal. Fig. 5 (not shown), particularly intended for pipe joints, e.g. between chemical carrying glass pipes, is made from a tubular billet 1 of P.T.F.E., Fig. 1, by rotating it about its longitudinal axis whilst a veneering and parting tool 5 makes a first cut parallel to end face 3, which stops short of bore 2, and a second cut parallel to the first which parts a section in the form of a double-walled truncated cone. The two walls 7, 8 of the cone are separated, Fig. 3 (not shown), the connection between them forming a waist 9, and are placed in a mould, Fig. 4 (not shown), where heat and pressure are applied, using male and female mould members 10, 11, 11a, thereby obtaining a seal having a peripheral groove formed at the position of waist 9. After cooling the mould, walls 7, 8 are trimmed.
Patent GB-390870-A (GB)
Title: Improvements in the production of nitrogen
IPC: C01B3/02
Filed: 1931-10-20
Abstract: <PICT:0390870/III/1> In the formation of nitrogen, or a mixture containing up to ten per cent. of hydrogen, by the thermal decomposition of ammonia, with or without a catalyst, and the combustion with air of the gaseous mixture, the heat of combustion is utilized for the decomposition, e.g. by heat exchange, auxiliary heating being thereby avoided.  When a catalyst is employed, this may be contained in an annular space surrounding the combustion chamber. As shown, the combustion and heat exchanging chambers consist of superposed cylinders 2, 1, the combustion chamber being lined with refractory material 15.  Housed in the cylinder 1 is a coiled iron pipe 9, the coil being formed with a taper and closed at the top by a plate 16 so that the combustion gases are caused to escape between the coils.  Ammonia is fed to the coil by a pipe 8 and the decomposition products are led by a pipe 11 to the base of the cylinder 1, air being supplied by apertures 13 in the cover 12 and controlled by a rotary perforated plate 14.  The products of combustion leave by a central aperture 6 and a pipe 7.  In operation, the initial temperature is obtained by burning hydrogen or coal gas, or ammonia and oxygen, in the combustion chamber, or an electric heater may be employed.  Presence of free oxygen in the gases is avoided by controlling the air supply, a decrease in which results in a small amount of hydrogen in the resultant gas; free ammonia in the gases is also avoided by controlling the air supply.
Patent GB-786820-A (GB)
Title: A space heating appliance operated on liquid or gaseous fuel
IPC: F24C5/20
Filed: 1955-10-14
Abstract: 786,820. Oil stoves. BAIER, O., BAIER, S., BAIER, L., BAIER, W., BAIER, W., and SCHLUMPRECHR, E., [trading as BAIER KOMME.-GES. WEBASTO-WERK, W.]. Oct. 14, 1955 [Oct. 25, 1954], No. 29329/55. Class 126 [Also in Groups X and XIII] A space heater burning liquid or gaseous fuel has a combustion chamber 1 through which an open-ended tube 6 extends from the top to bottom, and into which a burner 10 feeds hot gases tangentially. Sheet metal heat screen 7, 8 are provided to protect the floor and fuel tank 2 from heat from the combustion chamber. The combustion chamber and fuel tank are supported by a framework comprising upper and lower frames 3, 4, struts 9, and feet 12 curved on the bottom so that a number of heaters can be stacked one on another. The struts have brackets 22, 24 to support dismantled flue sections 20, 21. Longer dismantled flue sections are accommodated in the air tube 6. In use, one end of the assembled flue fits in an annular gap between the two walls of a double-walled outlet from the combustion chamber. The flue pipes may be slightly conical so that one can be fitted into another. Supports 26 for a cooking utensil are provided.
Patent GB-623574-A (GB)
Title: Knitting machine needles
IPC: D04B35/02
Filed: 1946-10-02
Abstract: 623,574. Knitting-machine needles. DEHN, S. G. (Vanity Fair Mills, Inc.). Oct. 2, 1946, No. 29379. [Class 74 (ii)] A needle for a knitting-machine comprises a shank 1 connected by a bend 4 to a beard 6, and a tongue, the tongue having a channelled shank 10 to receive the shank 1 of the needle, and a hook 11 which lies within the bend 4. The point 12 of the hook 11 lies in a recess 8 in the needle beard 6, the beard having an inward bend 5 past which the tongue hook 11 must be sprung when fitted to the needle. The hook 11 may thus be fixed immovably in the bend 4. The tongue shank 10 has a recess 13 to accommodate the needle point when the shank 10 is flexed inwardly to close the needle hook. In an alternative form the recess 8 and the point 12 may be formed to permit the tongue to turn without flexing, to close the needle hook. Specification 601,020 is referred to.