baber/WOPTO huggingface dataset:
Patent GB-1407995-A (GB)
Title: Cam workhead mechanisms for grinding machines
IPC: B24B19/12
Filed: 1972-06-23
Abstract: 1407995 Grinding KEIGHLEY GRINDERS (MACHINE TOOLS) Ltd 10 April 1973 [23 June 1972] 29636/72 Heading B3D [Also in Division F2] A cam workhead mechanism for copying of cam forms from a master cam 4, comprises a work spindle 1 mounted within a housing 2 having an arcuate surface 3 centered on the axis of the spindle and in rolling contact with a base surface 6, and means constraining the axis of the spindle in a fixed direction whilst allowing it to execute linear movement in a direction normal to the axis. The housing is rolled over the surface 6 by a lever arm 2a to engage one of a series of master cams 4 with a cam follower 5 to control the movement of a workpiece 9 carried by the spindle 1 relative to a grinding wheel 10. The cam follower can be moved by a selector 7 to engage any one of the master cams 4 and is engaged by two support rolls 8. The means constraining the axis of the spindle in a fixed direction consists, at each end of the housing, of a part 11 a gear engaging a rack 13 on the base 6. A spring 12 urges the arcuate surface 3 and gear parts 11 into engagement with the base surface 6 and racks 13, respectively. In another embodiment, each end of the housing has a single tooth engaging a slot corresponding to a part of a rack. In a further embodiment, each end of the housing is connected by a link to cranks at each end of a shaft parallel to the axis of the spindle. In yet another embodiment, each end of the housing has a pair of steel tapes 22, 23, Fig. 6, extending in opposite directions from the housing and connected to parts in the plane of the base surface 6, one of the parts being acted on by a spring 24 to effect tensioning of the tapes.
Patent GB-1147364-A (GB)
Title: Method and apparatus for securing a sieve fabric to a sieve frame
Inventor: HECHLER HERBERT
IPC: B07B1/48
Filed: 1967-06-27
Abstract: 1,147,364. Reinforcing edges of non-metallic sheet material. MIAG MUHLENBAU UND INDUSTRIE G.m.b.H. 27 June, 1967 [8 July, 1967], No. 29699/67. Heading B5K. [Also in Division B2] A piece of sieve fabric 6 is secured to a sieve frame 3 by placing the fabric 6 over the frame 3 which is coated on the surfaces contacted by the fabric 6 with an air-dried thermoplastic adhesive, e.g. an adhesive based on polyvinyl acetate, the fabric 6 overlapping the edges of the frame 3; clamping the overlapping edges on at least two opposite sides of the frame 3 substantially along the entire length of the sides; tensioning the fabric 6 over the frame 3 by relative movement in a direction normal to the plane of the fabric between the frame and the clamped edges of the fabric; pressing the fabric 6 against the frame 3 in the regions where it makes contact with the frame ; and heating the fabric 6 in those regions so as to adhere the fabric to the frame. A shown in Fig. 3, the frame 3 is positioned on a base 1 formed with a raised edge. The total thickness of the adhesive coating on the frame 3 may be substantially equal to the thickness of the sieve fabric and this coating may be formed of a number of individual layers each dried before application of the next. Resilient foam rubber cushions 5 are accommodated in free zones of the frame 3 and their upper faces project above the frame 3. The rectangular fabric 6, which may be of polyamide fibres, is pre-soaked in water and placed on the frame 3 whilst dripping wet so that it becomes partly tensioned as it shrinks as it dries. Clamps 8 are pressed together to grip the fabric 6 and are moved downwardly in the direction of arrows 9 to tension the fabric, pressure plates 51 having been placed on each field of the fabric 6. A vertically guided section 10 is lowered so that plates 11 thereon formed with longitudinal channels and heated to above 60‹ C., e.g. about 130‹ C., engage the frame 3, for example, for ten seconds, to soften the adhesive to adhere the fabric 6 to the frame 3. After removal, the edges of the fabric projecting from the frame 3 are cut off. In apparatus for performing this method, Fig. 5, four pairs of clamps 8 are provided, the lower clamp of each pair being fixed to a frame 15 adjustable in height and the upper clamp being secured to a bell crank 16 pivotable about an axis 18 by an hydraulic ram 17. The clamps 8 are preferably of an undulating cross-section without sharp edges to facilitate gripping. The base 1 is raised and lowered by a member 21 eccentrically mounted on an actuating shaft 20. The section 10 is mounted on a piston rod of an hydraulic cylinder 22 displaceable on horizontal rails 24. Electrical elements 25 are provided to heat the plates 11 which are coated with a parting agent.
Patent GB-189963-A (GB)
Title: Improvements in centrifugally-actuated electric switches for electric motors
IPC: H02P1/12
Filed: 1921-11-08
Abstract: 189,963. Fairweather, W., (Singer Manufacturing Co.). Nov. 8, 1921. Centrifugal switches for controlling the connection of the starting winding of an induction motor comprise two spring-controlled arms 28 which make contact at 29 with two carbon brushes 22, 23 rotating around two slip rings 14, 15 until the motor runs up to speed when the arms leave the brushes under centrifugal action and against the action of the springs 30, the increased tension in which is used to maintain the brushes in engagement with the slip rings. The switch is mounted within the casing of the motor, the fixed slip rings being carried by an insulating block 13 secured to the casing. The rotating brushes and the centrifugal switches are mounted on a thin insulating carrier 17 surrounding the motor shaft and carried from the rotor by pins 19. The brushes are normally bridged, so as to introduce the starting winding, by the link 28, rigid connecting link 26, and link 24. Link 28 has a contact pin 29 which contacts with the brush 22, while link 24 engages and retains the brush 23, under the action of the spring 30 between the two links. This bridging connection is duplicated, as shown, so as to produce a mechanicallv-balanced construction. When the motor speeds up, the links 28, 28<1> fly out and break the two bridging connections; at the same time the springs 30 are stressed, and, acting on the retaining links 24, prevent the brushes from leaving the slip rings.
Patent GB-537780-A (GB)
Title: Improvements in or relating to charging devices for internal combustion engines
IPC: F02B37/04
Filed: 1939-11-09
Abstract: 537,780. Pumps. BUCHI, A. Nov. 9, 1939, No. 29741. Convention date, March 28. [Class 7(ii)] A pump 13, mechanically driven from the engine or independently, supplies air at starting or for low speeds and light loads. At higher speeds and loads an exhaust-driven blower 15 comes into action taking its air either from the atmosphere or from the blower 13. Variable speed gearing may be used to drive the blower 13. Pressure responsive automatic valves 25, 32 control the passages from the pumps 13, 15 to the intake manifold. Inter-connected throttle valves 27, 31, 28, 29 may also be placed in the conduits 19, 24, in the conduit 22 between the two pumps, and in that from the atmosphere to the pump 15. The throttles 28, 29 are reversely controlled, one being open when the other is shut. The pump 13 may be of the centrifugal or helical-vane type. For reversible engines a centrifugal blower without fixed diffuser blades should be used. One mechanically-driven pump may be associated with a number of turbo-blowers, e.g. in a V-engine where each bank has a separate blower.
Patent GB-1141896-A (GB)
Title: Improvements in and relating piezoelectric materials
Inventor: NISHIDA MASAMITSU
IPC: C04B35/46
Filed: 1967-06-29
Abstract: 1,141,896. Piezoelectric ceramics. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 29 June, 1967, No. 29995/67. Heading C1J. [Also in Division H1] A ceramic composition is a solid solution of a material of the formula Pb(Co 1/3 .Nb 2/3  )Ti,ZrO 3  where in mole per cent Co 1/3 Nb 2/3  is 3 to 50; Ti is 12À5 to 62À5; and Zr is 12À5 to 62À5, suitable examples being given.
Patent GB-324101-A (GB)
Title: Improvements in or relating to luminous vacuum tube devices
IPC: B64F1/20
Filed: 1928-10-17
Abstract: 324,101. Robertson, J. R., and Vielle, J. Oct. 17, 1928. Vacuum tubes.-An annular or part-annular lowpressure gas or vapour discharge tube 1, Figs. 1 and 3, is adapted to glow when placed in close relation to a cable or conductor 3 carrying alternating current, the axial length of the discharge space being considerably greater than the radial depth thereof. One or more electrodes may be sealed into the tube. The cable may be completely surrounded by two part-annular tubes. It is stated that the cable may be an overhead power transmission line, a high-tension lead of a, magneto, or a lead to a wireless aerial. The c-entral bore of the tube may be metal plated.
Patent GB-191539-A (GB)
Title: Improvements in or relating to mixing or mashing machines
IPC: C12C7/04
Filed: 1921-11-12
Abstract: 191,539. Crawford, T. Nov. 12, 1921. Mixing in definite proportions.-In machines for mixing water with crushed grain, malt, or the like, the mixture passes over a grid or screen which moves with variations in density of the mixture, such movement being transmitted either to an indicator to show deviations from a predetermined consistency, or to means for automatically varying the mixture. The grid a is secured to a spindle b pivoted across the spout c of the mashing-machine d, the spindle carrying an arm connected by a link i to a spring-balance j secured to the machine. The arm k may be FIG.2. connected by a rod k<1> to an arm on the spindle m of the hopper slide or an auxiliary flap n. The spindle m may be continued ,and connected to a tap o in the water supply.
Patent GB-427811-A (GB)
Title: Improvements in or relating to form-grinding
IPC: B24B47/18
Filed: 1933-11-01
Abstract: 427,811. Grinding-machines. COVENTRY GAUGE & TOOL CO., Ltd., Earlsdon, and HARLEY, S. J., Long Bend, Old Leamington Road, Stivichall, both in Coventry. Nov. 1, 1933, No. 30279. [Class 60] In a form-grinding machine, in order to obtain a peripheral speed for the grinding-wheel giving the best performance for a maximum period of use without re - dress. ing, the grinding - wheel is driven by an electric motor, the speed of which is controlled by variation of the armature voltage, the field voltage being either constant or variable. As shown in Fig. 1, the wheel motor B is driven from a generator A, the field current for the motor and generator being supplied by an exciter C, driven with the generator A by a motor D. The generator field circuit a is controlled by a variable resistance e, and the field circuit of the motor B also may be controlled by a variable resistance f ; a fixed resistance g also preferably is included in the circuit. In a modification, the fields of the generator A and of the motor B are supplied from mains, and in a further modification, Fig. 3, the variable resistances e, f are in series with the fields a, b. The speed range to be obtained may include a speed suitable for trueing the grinding-wheel.
Patent GB-733405-A (GB)
Title: Improvements in or relating to coupling devices for flexible hose pipes
IPC: F16L33/16
Filed: 1951-06-28
Abstract: 733,405. Hose couplings. AEROQUIP CORPORATION..Tune 28, 1951 [Sept. 14, 1950], No. 30286/53. Divided out of 733,337. Drawings to Specification. Class 99 (1). In a coupling of the type wherein the end of a hose pipe is accommodated in an annular space between a nipple and a socket, the nipple is screw-threaded into the socket and has a sharp leading edge for cutting a cylindrical slit in the hose as the nipple is screwed in, and the socket grips the hose against axial movement relatively to itself during the slit-forming operation. The couplings described are described also in Specification 733,337.
Patent GB-699788-A (GB)
Title: Improvements in protection of cellulose textile fibres against heat ageing
IPC: D06M13/248
Filed: 1951-12-28
Abstract: Natural or regenerated cellulose fibres, yarns, cords and fabrics are given a resistance to the loss of strength which usually occurs on heat-ageing by impregnating them, as by immersion, spraying or brushing, with a water-soluble 2,21-diaminodialkyl sulphide, which may be applied at room or elevated temperature and preferably as an aqueous solution. The alkyl group has not more than 6 carbon atoms, the preferred compound being 2,21-diaminodiethylsulphide.  The process is applicable to regenerated cellulose, cotton, flax and hemp fibres and cotton fibres which have been pretreated with alkali metal abietate or congocopalate.  Treated cords may be embedded in rubber, e.g. as tyrecords, the treated cords being resistant to vulcanizing temperatures.ALSO:Natural or regenerated cellulose fibres, for use as reinforcement for rubber articles, are rendered resistant to vulcanizing temperatures by impregnation with a water-soluble 2, 21-diaminodialkyl sulphide.  The alkyl group has not more than 6 carbon atoms, the preferred compound being 2, 21-diaminodiethyl sulphide.
Patent GB-671004-A (GB)
Title: Process for the synthetic preparation of 14-halogeno-tetradecane-1-carboxylic acids and pentadecanolide
IPC: C07D315/00
Filed: 1949-11-28
Abstract: Pentadecanolide (the lactone of 15-hydroxy-n-pentadecylic acid) is manufactured by directly or indirectly cyclizing a 14-halogenotetradecane-1-carboxylic acid by known methods for the cyclization of aliphatic halogenocarboxylic acids.  In an example, a solution of 14-bromotetradecane -1-carboxylic acid in methyl ethyl ketone is gradually introduced into a boiling mixture of methyl ethyl ketone and potassium carbonate.  Alternatively the bromo-acid may first be converted into the corresponding iodoacid, which is similarly cyclized, or into the hydroxy-acid, which is cyclized by the process of Specification 440,416.  14 - Halogenotetradecane - 1 - carboxylic acids are manufactured by the addition of hydrogen halide (especially hydrogen bromide), under the conditions of the so-called peroxide effect (e.g. in the presence of a peroxide at a low temperature in an inert medium such as toluene or petroleum ether), to tetradecene-13-carboxylic acid-1, which is synthesised as follows: (a) undecene-10-ol-1 is converted into undecene-10-yl-1 bromide by the action of hydrobromic acid or phosphorus tribromide; (b) the bromide is reacted with diethyl sodium malonate and the product saponified, decarboxylated and esterified to produce an ester (preferably the ethyl ester) of dodecene-11-carboxylic acid-1; (c) this ester is reduced (e.g. by the modified or unmodified Bouveault-Blanc method, by means of lithium aluminium hydride or by catalytic hydrogenation) to tridecene-12-ol-1; (d) this alcohol is converted to the corresponding bromide as in (a); (e) the bromide is treated as in (b), but omitting the final esterification.  As an alternative to (b) and (c), undecene-10-yl-1 bromide may be converted into its Grignard compound, which is then reacted with ethylene oxide and the product decomposed with dilute acid, whilst step (e) may be replaced by a similar conversion of tridecene-12-yl-1 bromide to pentadecene-12-ol-1 and oxidation of the latter.  Examples illustrate the alternative processes, the final hydrohalogenation being effected with hydrobromic acid (generated from bromine and tetrahydronaphthalene) in toluene at 0-2 DEG  C. in the presence of di-tert.-butyl peroxide or benzoyl peroxide.  The Specification as open to inspection under Sect. 91 comprises also the conversion of the alcohols in steps (a) and (d) above to halides other than the bromides; the use in step (b) or e) of other reagents which lead to a lengthening of the chain by two carbon atoms (e.g. ethyl acetoacetate or ethyl cyanacetate); the reduction by means of lithium aluminium hydride of free dodecene carboxylic acid or a halide or the anhydride thereof instead of the esters thereof in step (c); and the use in the alternatives to steps (b), (c) or (e) of other organo-metallic compounds (e.g. lithium compounds) instead of Grignard compounds. This subject-matter does not appear in the Specification as accepted.
Patent GB-851980-A (GB)
Title: A machine for printing flexible plastic containers
IPC: B41F17/00
Filed: 1958-09-24
Abstract: 851,980. Endless pusher conveyers. HAYWARD, H. M., and HUMPHREY, L. A. Sept. 24, 1958, No. 30447/58. Class 78 (1). [Also in Group XVI] In a machine for printing plastic containers (see Group XVI) an endless conveyer is provided for moving a pallet 76 holding the containers 79 under the printing cylinder 38. The conveyer comprises a triplex chain 15 mounted on idler wheels 16, 17 and is driven by sprockets 26. Arms 86 are pivoted to central links of the conveyer at intervals and each carries either a long finger 84 or a short finger 85. A slide 87 mounted beneath the top part of the conveyer engages the arms 86 so that the fingers 84, 85 are held perpendicular to the conveyer. The fingers engage horizontal catch bars 83, 83a in a groove in the bottom of the pallet 76 and advance the pallet. Specification 751,924 and Australian Specification 211,307 are referred to.
Patent GB-391852-A (GB)
Title: Improvements in or relating to electrical signalling systems
IPC: H04B3/56
Filed: 1931-11-03
Abstract: 391,852. Preventing disturbance. AUTOMATIC ELECTRIC CO., Ltd., Strowger Works, Liverpool, RAYNER, T. R., 2, Stretton Avenue, Wallasey, and BURNS, G. A., 46, Onslow Road, Fairfield, Liverpool. Nov. 3, 1931, No. 30509. Drawings to Specification. [Class 40 (iv).] To ensure that the high voltage of a power network shall not give rise to dangerous voltages in telephone circuits and apparatus, the telephone line is associated with the transmitting or receiving equipment by an insulating gap of sufficient length to give the required degree of insulation and speech is relayed across the gap by electromagnetic waves such as light, heat or wireless waves. When light is: used, the speech currents affect a neon or other lamp, and the light rays are projected across the insulating gap to a photo-electric .cell which operates a telephone receiver or loud-speaker. In a modification the insulating gap is formed between a transmitting and a receiving aerial and signals are adapted to modulate the output of a valve oscillator. The output of the oscillator, which is preferably concentrated by a suitable reflecting system, is directed over the gap to the receiving aerial.
Patent GB-648112-A (GB)
Title: Improvements in or relating to board games
IPC: A63F3/00
Filed: 1948-11-25
Abstract: 648,112. Board games. MUTRUX, H. G. Nov. 25, 1948, No. 30611. [Class 132 (ii)] Apparatus for playing a board game comprises a board marked with a network of routes as shown in either Fig. 1 or Fig. 4, the lines radiating from an intersection being numbered so that when a die is thrown, the playing piece is moved over the line bearing the number thrown. The network is based on hexagons. In a modification the lines are marked with the number I - 3 only and a die having three blank sides or a teetotum having three flats is used. The identification of the lines may be by colour.
Patent GB-262454-A (GB)
Title: Improvements in the manufacture and production of phosphorus acids and hydrogen
IPC: C01B3/06
Filed: 1926-12-03
Abstract: 262,454. I. G. Farbenindustrie Akt.- Ges. Dec. 3, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Hydrogen. - In the production of phosphoric acid and hydrogen by the interaction of superheated steam and phosphorus, the latter is introduced into the steam in a liquid condition. Preferably the tubes conveying the phosphorus are cooled sufficiently to prevent the formation of red phosphorus. The phosphorus may be forced under pressure into the steam or it may be drawn into the reaction apparatus by means of an injector. Preferably the phosphorus is atomized in order to facilitate vaporization. In an example, steam introduced through a K÷rting injector draws liquid phosphorus into the reaction zone and the mixed vapours pass over lignite coke charged with copper.
Patent GB-729412-A (GB)
Title: Improvements in and relating to thrust collars
IPC: F16C17/04
Filed: 1953-11-05
Abstract: 729,412. Thrust collar fastenings. GENERAL ELECTRIC CO. Nov. 5, 1953 [Nov. 5, 1952], No. 30664/53. Class 80 (2). A thrust collar 5 is secured to a rotatable shaft 4 by fastening means consisting of sleeve portions 6, 7 loosely embracing the shaft 4 and connected by an enlarged portion 8 which defines an annular cavity 9 with the shaft, the cavity 9 containing an annulus 10 of rubber or neoprene. The enlarged portion 8 is crimped or otherwise distorted at one or more locations on its periphery so as to cause the annulus 10 to engage tightly with enlarged portion 8 and shaft 4. Washers 12, 13 are located between the collar 5 and the end 14 of the bearings 2.
Patent GB-485092-A (GB)
Title: Improvements in or relating to metal castings
IPC: B22C11/00
Filed: 1936-11-11
Abstract: 485,092. Making perforations cylindrical. ARMSTRONG, F. G. G. Nov. 11, 1936, No. 30755. [Classes 83 (i) and 83 (iv)] Forging; castings.-In order to make a cylindrical bore or recess in a cast article 11 it is formed slightly tapered in casting and a mandrel 13 having a short length 14 of a slightly greater diameter, equal to that desired, is then passed through it. The end 15 of the mandrel may be rounded or conical or a very short length 16, Fig. 2, of a diameter less than the head 14 which may be integral with the mandrel 13 or attached thereto by a screwed stem. Casting processes.-In a modification the mandrel is used as a core 19, Fig. 4, for forming the bore during casting, this bore being made uniform by withdrawing the mandrel. In this case the shoulder 22 must be rounded or the enlargement 21 have a barrelled form.
Patent GB-477794-A (GB)
Title: Improvements in or relating to clutch plates
IPC: F16D13/64
Filed: 1936-11-11
Abstract: 477,794. Friction clutches. BORG & BECK CO., Ltd., and HIGGS, C. W. Nov. 11, 1936, No. 30804. Addition to 379,504. [Class 80 (ii)] In a double-faced clutch plate comprising a metal disc 10 whose outer part is divided by slots 14 and 15 into sectors 13 whose side parts 16 are bent out of the plane of the disc all to one side thereof, one or each of the friction facings, which are secured to the sectors, is constituted by a circumferential series of separate pads. As shown, both facings are composed of oval-shaped pads, each of which extends over a pair of adjacent sectors, the pads 20 on one side being staggered with respect to the pads 22 on the other side. The pads 20, which lie against the side parts 16 of the sectors, are riveted to tongues 18, 18a bent out from adjacent sectors, while the pads 22 are secured to adjacent sectors by rivets 23, 23a. The. pads may, however, be formed by dividing an annulus either before or after connection to the sectors 13. Such division may be radial or may be of sinuous, curved, or other form so as to afford an interlocking action between the pads. Further, each sector may have secured thereto a separate pad, which may be circular. Two separate facings may be provided on one or each side of the disc, one such facing comprising a ring and the other a circumferential series of pads.
Patent GB-1435753-A (GB)
Title: Method for packaging viscous solutions
IPC: B65D85/00
Filed: 1973-06-28
Abstract: 1435753 Packaging apparatus SCHERICO Ltd 28 June 1973 [30 June 1972] 30826/73 Heading B8C [Also in Division B1] In apparatus for providing a sealed collapsible tube containing a viscous solution of an organic copolymer, beads of the copolymer in a predetermined amount are allowed to fall past a disc 56 in a hopper 10 and enter an inverted open collapsible tube closed at the neck end and supported in a cavity 60 of the jig 24, a measured quantity of a solvent being admitted through nozzle 32 at the same time. The tube may have a screw cap, and is sealed and stored for a period to allow the beads to dissolve. Jig 24 is vertically lowered to remove the tube to a sealing station for folding over and/or crimping. The copolymer may be polystyrene, polyvinylchloride, polyvinylacetate, polyacrylate or polyacetals, while the solvent may be ethanol with plasticizer and colouring.