baber/WOPTO huggingface dataset:
Patent GB-596493-A (GB)
Title: Improvements in machine guards
IPC: F16P3/04
Filed: 1945-07-30
Abstract: 596,493. Machinery guards. BROUGHTON, G. J. July 30, 1945, No. 19396. [Class 80(iv)] In a machine in which a mechanical connection is provided between a guard and a clutch engaging mechanism so that the clutch cannot be engaged until the guard is in the closed position an electric warning device such as a lamp or bell is provided to come into operation should the mechanical connection not function properly. As shown the guard comprises upper and lower pivoted members 11, 13 connected by a link 17 and mounted upon side brackets 9. The shaft 12 of the upper guard 11 operates through lever 21, rod 20, lever 19, shaft 18 and lever 29, a locking bolt 28 of the clutch engaging mechanism 25 so that when the guard is raised the clutch cannot be engaged. In this position also a scotch pin 42 on an arm 41 secured to the shaft 18 engages in a slot 43 in a flange on the machine shaft. A warning lamp 34 is provided in a prominent position on the machine the circuit of which is closed by actuation of a switch 30 by the arm 29 when it is moved to release the locking bolt 28 of the clutch mechanism. A second switch 35 in series with the switch 30 is adapted to be opened by a pin 36 on the operating arm 16 of the lower guard 13 so that during ordinary working of the machine the warning light is not switched on. If due to failure of the inter-locking mechanism the clutch is engaged whilst the guard is open the light will be switched on.
Patent GB-962314-A (GB)
Title: Trough for the wet treatment of fibre materials
IPC: D06B3/10
Filed: 1960-06-01
Abstract: 962, 314. Textile treating apparatus. TEXMA MASCHINENGESELLSCHAFT, [trading as GEB. SUCKER]. June 1, 1960 [June 5, 1959], No. 19448/60. Heading D1L. An apparatus for the wet treatment of fibrous material F, e.g. a band or warp of threads, comprises a bath 1, a guide roll 3, a dipping roll 4, upper and lower squeeze rolls 6, 5, all arranged in sequence, the rolls 3, 4 being so displaceably mounted and the rolls 3, 4, 5 being so located that the rolls 3, 4 and 4, 5 can be brought into mutual abutment at pressures which are simultaneously adjustable in the same sense. The roll 6 is mounted in a linkage 11, a spring 12 urging the roll 6 away from the roll 5. A piston 15 controls the pressure of all the nips as follows, the pivot points 22, 32 being fixed in space:- Lowering of the piston 15 pulls down a bell crank 16 in which roll 4 is journalled at 17 and thus tends to rotate clockwise a bell crank 20 to force roll 3 against roll 4 which is thus forced against the roll 5. Simultaneously, a bell crank 30 journalled at 18 to the bell crank 16 tends to rotate anti-clockwise a bell crank lever 31 which pulls down the linkage 11 to force the roll 6 against the roll 5. Contact between the cranks 16, 20 and 30, 31 is through adjustable members 25, 35. The roll 4 may be raised to the position 4a by the piston 15, the spring 12 then raising the roll 6 to the position 6a, the material F taking up the position F<SP>1</SP>, e.g. when the apparatus is stopped. In this position a nose 16b of the crank 16 engages an edge 20b of the crank 20 to force the roll 3 to the position 3a. A portion 37 of the trough 1 is movable to allow the trough to be drained before the pressure in the nip 5, 6 is released. Additional liquid treatment of the material F may take place at 2a, 2b, a scraper 26 being provided. In a modification, Fig. 1 (not shown) the baths 2a, 2b are omitted, and the frame 11 is connected to a separate piston, the lever 31 being dispersed with.
Patent GB-613977-A (GB)
Title: Stabilized synthetic resins
IPC: C08K5/103
Filed: 1946-06-28
Abstract: Polymers and copolymers of vinyl fluoride are stabilized by adding thereto a minor proportion of glycerol monolaurate, i.e. the a - or b - or mixture of these monolaurates.  Copolymers specified are those with ethylene, vinyl chloride, tetrafluoroethylene and monochloro-trifluoroethylene.  The mixing may be effected by wet grinding in a ball mill in the presence of water or organic liquids. Pigments, plasticizers and other resins may be added.  Preferably, the polymer is orientable and may then be cold drawn or elongated by rolling or pressing to orient the polymer.  In an example: (1) polyvinyl fluoride, diethyl ether and glyceryl mono-laurate are mixed together and the solvent evaporated.  Specification 605,445 is referred to.
Patent GB-735214-A (GB)
Title: Improvements in or relating to mandrels for use in bending hollow tubular articles, such as electromagnetic wave guides
IPC: B21D9/03
Filed: 1953-07-14
Abstract: 735,214. Flexible mandrels. TOMLINS, F. C. (Western Electric Co., Inc.). July 14, 1953, No. 19497/53. Class 83 (4). A mandrel for use in bending a hollow tubular article, such as a wave-guide, has a rigid stem pivotally attached at one end to a flexible body which comprises a series of diametrically overlapping interlocking rings which are detachable from each other and which serve to support the hollow tabular article on the inside as it is being bent. A rigid stem 20 comprises two steel strips 21 secured together and formed with recesses 24 and apertures 25 to receive a flexible body 22 comprising two series of interlocking rings 26 of rectangular cross-section, each ring 26 being formed with an arcuate groove 28 on one side and an arcuate recess 31 diametrically opposite on the other side. One arc 32 of the recess 31 is centred at the point of the intersection of the external wall of the ring and the axis of symmetry of the groove 28, and the other arc 33 is centred slightly off this point. A flexible steel strip 36 may be secured at the end to the stem 20 to pass over and around the rings 26.
Patent GB-828448-A (GB)
Title: Improvements in or relating to method and apparatus for forming hollow articles of thermoplastic materials
Inventor: WILKALIS JOSEPH MICHAEL
IPC: B29C49/02
Filed: 1956-06-25
Abstract: 828,448. Moulding hollow articles. PLAX CORPORATION. June 25, 1956, No. 19657/56. Class 87(2). A hollow neck portion 14 is injection moulded from a thermoplastic, e.g., polythylene, through an annular nozzle 1 into a neck mould 7 which is then drawn away from the nozzle and a length of tubular plastic 15 extruded integral with the moulded neck 14, the walls of the tubular extrusion being pinched between portions 8a, 8b of a sectional blow mould so as to close the tubing along a line adjacent the nozzle 1 and simultaneously to separate it from the plastic material in the nozzle, thereafter blowing and thereby expanding the tubing for the first time into shaping contact with the closed blow mould. The neck mould 7, a mandrel 6, and a sleeve 12 together define the neck cavity, the sleeve being slidaby received within the neck mould and its end serving to form the lip of the neck. The nozzle 1 may inject and extrude the plastic in an upward direction in which case the neck mould, mandrel, sleeve and blow mould are above the nozzle. The neck mould, mandrel, and sleeve may, together with the blow mould, be located on a rotary turret table. Specification 564,350 is referred to.
Patent GB-1018802-A (GB)
Title: 8-azasteroids
Inventor: CLARKSON RICHARD
IPC: C07D455/03
Filed: 1963-05-17
Abstract: The invention comprises 8-aza-steroids of the general formula <FORM:1018802/C2/1> wherein R1 and R2 which may be the same or different, stand for lower alkyl radicals containing not more than six carbon atoms and the acid addition salts thereof and the preparation thereof by oxidation, for example by chromic acid, of a compound of general formula <FORM:1018802/C2/2> wherein R1 and R2 have the meanings stated above and R3 and R4 which are different stand for hydrogen or the hydroxyl radical or a salt thereof.  The preparation of the 8-aza-steroids of the last general formula above may be accomplished according to either of the two reaction schemes outlined below: <FORM:1018802/C2/3> <FORM:1018802/C2/4> <FORM:1018802/C2/5> <FORM:1018802/C2/6> <FORM:1018802/C2/7> <FORM:1018802/C2/8> <FORM:1018802/C2/9> <FORM:1018802/C2/100> <FORM:1018802/C2/111> <FORM:1018802/C2/122> <FORM:1018802/C2/133> The compounds of Formula (IV) and (X) may be obtained by the interaction of the compound of Formula (III) with a triphenylphosphoniumylide in dimethylsulphoxide, or by dehydration of a compound of Formula (IX). The compounds of Formula (V) and (XI) may be obtained by the interaction of the compounds of Formula (IV) and (X) with diborane in tetrahydrofuran, followed by interaction of the product with alkaline hydrogen peroxide, followed by interaction of the resulting product with hot methanol.  The compounds of Formula (VI) and (XII) may be obtained by the interaction of the compounds of Formula (V) and (XI) with an alkali metal, for example lithium, and liquid ammonia, and a proton source, for example an alcohol, for example t.-butanol, in a solvent, for example tetrahydrofuran, ether or dioxan.  The compounds of Formula (VII) and (XIII) may be obtained by the hydrolysis of the compounds of Formula (VI) and (XII) by the interaction thereof with an inorganic acid, for example hydrochloric acid, or an organic acid, for example oxalic acid, conveniently in a diluent or solvent, for example water, and in an inert atmosphere, for example an atmosphere of nitrogen.  The compounds of Formula (VIII) and (XIV) may be obtained by the interaction of the compounds of Formula (VII) and (XIII) with a base, for example an alkali metal hydroxide or lower alkoxide, for example sodium hydroxide, sodium methoxide or potassium t.-butoxide, or a tertiary organic base, for example pyridine, conveniently in a diluent or solvent, for example aqueous methanol, and in an inert atmosphere, for example an atmosphere of nitrogen. Pharmaceutical compositions comprise a compound of the first general formula above and one or more diluents or excipients, optionally with the addition of cod liver oil or one or more known medicinal steroids.  The compositions have progestational properties when administered orally or parenterally.
Patent GB-989182-A (GB)
Title: Improved tyres
Inventor: MITCHELL WILLIAM ERIC
IPC: B60C7/28
Filed: 1961-06-01
Abstract: 989,182. Tyres. DUNLOP RUBBER CO. Ltd. May 11, 1962 [June 1, 1961], No. 19755/61. Heading B7C. A tyre 1 for perambulators and the like comprises a length 3 of resilient tubular material, such as an extruded rubber tube, held in a closed annular shape by an endless reinforcing band 8 which is located in the bore 6 of the tube 3, there being a circumferentially extending slit 4 extending from the sur face of the tread 5 to the bore 6. The reinforcing band 8 may be a mild steel wire whose ends are secured to a sleeve as described in Specification 988,679. When the tyre is mounted on the rim of a wheel 2, the band 8 urges the tyre towards the run, so that an axially inward force is imposed on each side of the tyre to hold the slit closed.
Patent GB-867223-A (GB)
Title: Improvements in or relating to the production of regenerated celluose staple fibres
Inventor: LOWTHER ALAN GEORGE
IPC: D01F2/06
Filed: 1957-06-24
Abstract: Staple fibres of regenerated cellulose are made by spinning viscose into an acid regenerating bath containing zinc salts, stretching the filaments obtained in a bath of hot, acid, aqueous liquor containing a dispersing agent and cutting the filaments into staple fibres; presence of the dispersing agent prolongs the life of the cutters. Suitable dispersing agents are amine/ethylene oxide condensates having average molecular weights of between 500 and 1,000 and corresponding to the general formula:- <FORM:0867223/IV (a)/1> where R is hydrogen or an alkyl radical and x and y are integers, and the monolauryl ether of polyethylene glycol.  The viscose or the regenerating bath may contain a modifier such as polyethylene glycol.
Patent GB-1354762-A (GB)
Title: Motion-monitoring apparatus
IPC: G01P3/80
Filed: 1971-06-09
Abstract: 1354762 Measuring speed electrically STIFTELSEN INSTITUTET FOR MIKROVAGSTEKNIK VID TEKNISKA HOGSKOLAN I STOCKHOLM 9 June 1971 [9 June 1970] 19788/71 Heading G1N The velocity of a moving body is determined from the time interval between signals developed in successively positioned sensors. As shown Fig. 1, an elongated body O moves at a velocity v past sensors 1, 2 which detect random variations in a property of the body O. The signals are fed to a differential amplifier F3 via cyclically operated switches A, B so that an output is obtained if the interval between the opening of switches A and the mid-point of the closing of switch B is not equal to the time delay between the signals from sensors 1, 2. Any such output is integrated at I through further cyclic switches C, D and varies the frequency of an A/F converter which controls the cycling of switches A, B, C, D, until these time intervals are equal. The frequency is shown at 12 and is indicative of the velocity v.
Patent GB-597577-A (GB)
Title: Improvements in bases for electric discharge devices such as electric discharge lamps
IPC: H01J5/40
Filed: 1944-10-13
Abstract: 597,577. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 13, 1944, No. 19813. Convention date, Oct. 14, 1943. [Class 39 (i)] The base structure of an electron discharge device such as a fluorescent lamp comprises a metal plate 18, Fig. 1, sealed direct to one end of the vitreous envelope 10 and having an aperture 23 therein through which a lead-in wire 76 extends, a .glass bead 25 fused to the plate 18 around the edges of the aperture 23, a metal contact disc or cap 26 connected to the lead-in wire 16 and fusion-sealed to the glass bead 25, and a well or cavity 14 housing an exhaust tube 21. The glass bead 25 may itself seal the aperture 23; as shown ; alternatively, the glass bead may be in the form of a hollow ring 60, Fig. 11, in which case the contact disc 26 serves to seal the aperture 23. Preferably, in either form, the metal plate 18 has two lead-in wire apertures 23, symmetrically arranged on either side of the well or cavity 14 housing the exhaust tube 21, as shown in Figs. 1 and 11. The envelope 10 may be of circular, elliptical or flattened elliptical cross-section, the metal plate 18 being correspondingly shaped. The metal plate 18 and contact discs 26 may be of the chrome-ironalloy " Alleghany 55." The method of assembly of the base structures is described in detail. The Specification as open to inspection under Sect. 91 describes an arrangement in which the base-plate 63, Fig. 16 (Cancelled), has only one aperture located centrally therein, through which a lead-in wire 65 attached to a contact disc 26 is sealed by means of a glass bead 25. The exhaust aperture 67 is closed by an. exhaust tube tip 68. The electrode 66. may be of the " cold starting " hot cathode type as shown ; when, it is of the hot starting " type requiring two lead-in wires, the second lead-in wire may be connected directly to the base-plate 63. This subject-matter does not appear in the Specification as accepted.
Patent GB-440317-A (GB)
Title: Improvements in and relating to automatic lathes
IPC: E05B19/18
Filed: 1935-07-11
Abstract: 440,317. Lathes. PITTLER WERKZEUGMASCHINENFABRIK AKT.-GES., Wahren, Leipsic, Germany. July 11, 1935, No. 19830. Convention date, Nov. 17, 1934. [Class 83 (iii)] An automatic lathe in which bar stock 9 is fed past the tools by axial advance of the spindle has a number of tool-holders a-d mounted on lever rests 1-4 pivoted on axes 5-8 respectively, the tool levers being connected through rods 15-18 to cam follower levers 19-22 operated by cams on a shaft 24.
Patent GB-253744-A (GB)
Title: Improvements in capsules, or containers, for gases, or liquids, under pressure for use in inflating apparatus for saving life from drowning or for other purposes
IPC: B63C9/18
Filed: 1925-08-06
Abstract: 253,744. Sparklets, Ltd., and Campbell, R. H. Aug. 6, 1925. Inflating .-The capsule used for inflating a life-buoy &c. is closed by a screwed piece 2 formed with a hollow outwardly screwed stem 4 which may be screwed into the lower part 6 of the handle 7 of the life-buov &c. This end is screwed into a flanged socket 10 secured in the opening of the container by a lock nut and washers. The hollow stem of the capsule is broken to inflate the buoy &c. The closure is of the kind described in Specification 135,596, [Class 8 (ii), Air and gases, Treating &c.].
Patent GB-1220375-A (GB)
Title: Improvements relating to gripping fixtures such as chucks and expanding mandrels
Inventor: GLIMPEL RICHARD
IPC: B23B31/40
Filed: 1968-04-26
Abstract: 1,220,375. Chucks; mandrels. R. GLIMPEL. 26 April, 1968 [27 April, 1967], No. 19840/68. Heading B3B. An expandable mandrel for locking two parts together or a chuck for clamping internally or externally a workpiece or tool comprises a circumferentially continuous sleeve 2 movable axially along a body 1 by means of a flanged nut 4, ramp faces provided on the sleeve and body co-operating to expand or contract the sleeve to provide a clamping grip. In the expandable mandrel shown the ramp faces are provided by axially spaced teeth 9, 14 and the sleeve 2 is internally and externally grooved to provide internal lands on which the teeth 14 are formed and external lands that constitute the clamping surface. The shape of the sleeve crosssection also provides substantially incompressible radial strips to transfer the radial clamping pressure. A screw 24 and slot 25 co-operate to limit the movement of the sleeve 2. In a further embodiment (Fig. 6, not shown) a chuck is provided having an internal sleeve set in a body portion for clamping on to a rod, the sleeve and body having co-operating teeth to contract the sleeve. In a modification (Fig. 8, not shown) the ramp face is provided by a tapered bore in the body and a sleeve has a correspondingly tapered external surface. The chucks may be modified to provide an external expanding sleeve to clamp inside a bore. The sleeves in all embodiments are slotted or channelled to provide the radial strips.
Patent GB-239990-A (GB)
Title: An improved baling press for baling waste paper or other material
IPC: B30B9/30
Filed: 1924-08-22
Abstract: 239,990. Crook, R. Aug. 22, 1924. Baling-presses.-A baling-press, for waste paper and similar material, comprises a casing a, the top part of which carries doors a<2> hinged at a<3> at the front and back. A movable bottom b carries, on extensions b', brackets b<2> with wheels c around which, at each end of the press, a chain h passes from a standard a<10> to a sprocket wheel g<3>, upon which it is held by a weight h<1>. The lid a<6> is hinged at a' and carries, in brackets d<1>, a shaft d which is actuated by a lever e or hand-wheel to rotate the sprocket wheel g<3> through bevel gearing. In use, the lid is raised and the paper &c. pressed in by hand. The lid is then closed and the doors a<2> secured by latches a<4>. The shaft d is actuated to raise the bottom b, the extensions b<1> sliding in slots a<1> in the sides of the casing. A pawl k<1> prevents backward movement. When compression is effected, the doors a<2> are opened and the bale is tied. The shafts on the lid may be slidable in, or removable from, their bearings.
Patent GB-125902-A (GB)
Title: Improvements in Soundboxes for Sound Reproducing and Sound Recording Machines.
Inventor: DIEHL ALBERT CHRISTIAN
IPC: G11B3/46
Filed: 1918-12-02
Abstract: 125,902. Diehl, A. C. Dec. 2, 1918. Tool arms and mountings.-The stylus bar of a sound reproducing or recording machine is secured to and encircled by a resilient ring by which it is suspended on alined pivots. The ring is of varying resiliency at different points of its circumference. Figs. 4 and 5 are sectional views taken through the alined pivots. The stylus bar 8 has secured to it a lug 13 formed with a slot in which is fixed the ring 15. A portion 19 of the ring is reduced in thickness, and is bent inwards towards the centre to render the ring more flexible. Spherical or conical recesses are formed at diametrically opposite points on the ring to receive balls 23, which also bear in spherical recesses in the ends of screws 6 passing through threaded holes in lugs 5 formed in a bracket attached to the sound-box rim. The spherical recesses are of larger radius than the balls resting therein.
Patent GB-1029547-A (GB)
Title: Heat sensitive sheets
IPC: G03C1/52
Filed: 1963-05-20
Abstract: 7,41 - Diethyl - 21 - hydroxy - 2,4,4 - trimethyl flavan; 21 - hydroxy - 2,4,4,6,7,41,51 -hepamethyl flavan; 21 - hydroxy - 2,4,4,6,51 - pentamethyl flavan; and 21-hydroxy-2,4,4,7,41-pentamethyl flavan are prepared by mixing m-ethylphenol; 3,4-dimethyl-phenol; p-cresol; and m-cresol, respectively, with acetone and saturating the mixture so obtained with gaseous HCl. After standing for 2 or 3 days, the mixture is stirred into aqueous sodium hydroxide and the flavan separated by filtration or evaporation.  Cyclohexanespiro - 4 - (21 - hydroxy - 7,41 -dimethyl - 2,3 - tetramethylene) flavan and 4 - p -hydroxyphenyl - 2,2,4 - trimethylchroman are obtained as above employing m-cresol and cyclohexanone, and phenol and mesityl oxide, respectively, in place of the specified phenol and acetone. Complexes of said chromans with basic organic amines may be prepared by mixing said chromans and amines and chilling, to - 20 DEG  C., the mixture so produced.  Several amines are specified.  A dioxane complex of 21 hydroxy - 2,4,4,6,51 - pentamethyl flavan and an ethanol complex of 4-p-hydroxyphenyl-2,2,4trimethyl-chroman may be prepared by a similar method.
Patent GB-905308-A (GB)
Title: Rotary internal combustion engine unit
IPC: F02B75/02
Filed: 1960-06-07
Abstract: 905,308. Rotary I.C. engines. NSU MOTORENWERKE A.G., and WANKEL G.m.b.H. June 7, 1960 [June 9, 1959], No. 19957/60. Class 110 (2). A power unit comprises two rotary I.C. engines of the n and n +1 lobe type mounted in dynamic balance relationship on an output shaft 5 together with a common supercharging compressor which is disposed therebetween (see Fig. 1, not shown). Each engine and compressor consists of a triangular rotor such as 8 having arcuate sides which is mounted in an outer body of epitrochoid form. Each engine rotor is provided with channels 26 which may be adjusted to vary the compression ratio of the engine, the channels 26 permit passage of the combustion gases from one lobe to the other when the rotor is at top dead-centre. Timing recesses are formed in the compressor rotor (see Fig. 3, not shown). If desired, the inner body may be held stationary and the outer member constitute the rotor.
Patent GB-930923-A (GB)
Title: Improvements in or relating to ionisation chambers
IPC: H01J47/04
Filed: 1961-06-02
Abstract: 930,923. Electrostatic measuring instruments. LANDIS & GYR A.G. June 2, 1961 [June 9, 1960], No. 20047/61. Class 37. [Also in Groups XXXVII and XL (a)] An ionisation chamber comprises a capacitor 2 and a resilient member 12 of electroconductive ferromagnetic material disposed between an electrode 15 of the capacitor and a stationary electrical contact 9 so as to be normally out of electrical contact with either the electrode 15 or the stationary contact 9 and being adapted so that when the resilient member is placed in a strong magnetic field, it acts as an electrical contact between the electrode and the stationary contact. The resilient member may be a cylindrical helical spring, the magnet 21 may be a permanent or electromagnet, and the spring housing 3 may be made from a plastic insulating material of high resistance. The device may be used as a " pencil type " radiation detector, the leakage from the initially charged capacitor 2 being minimized.