baber/WOPTO huggingface dataset:
Patent GB-737182-A (GB)
Title: Improvements in or relating to the manufacture of viscose
Inventor: NEWTON THOMAS DAVID
IPC: D01F2/08
Filed: 1952-08-26
Abstract: A churn for the continuous xanthation of matured alkali cellulose comprises an inlet tube for the reception of a measured flow of alkali cellulose, means for injecting into the inlet tube a metered supply of carbon bisulphide correctly proportioned to the supply of alkali cellulose, a rotary drum, communicating at one end with the inlet tube, for receiving the alkali cellulose from the inlet tube and means within the drum for causing the alkali cellulose to flow within the drum in a progressive, gradual and uninterrupted stream from the inlet tube to the far end of the drum and back again to an outlet manifold at the same end of the drum as the inlet tube. Alkali cellulose, which <PICT:0737182/IV (a)/1> may be prepared as described in Specification 707,422 and carbon bisulphide are fed through weighing and metering units of the kind described in Specification 737,181 into the inlet pipe 42 of a churn on which is rotatably mounted a hollow boss 71 attached to an inner tube 72 disposed within a rotary drum in a barrel 70.  A sprocket 75 driven by a chain (not shown) rotates the barrel 70. The inner tube 72 of the churn is canted upwardly from the horizontal, but tapers from a narrow section at the inlet end to a wider section at its other end, which is open.  Due to this taper, the bottom of the interior surface of the inner tube 72 provides p  a gradual fall so that the material fed to it from the inlet pipe 42 flows slowly along it to its open end, where it is discharged into the barrel.  This is cylindrical and also canted upwardly from the horizontal from the inlet tube end so that the material in the barrel travels slowly in the reverse direction towards the shroud 69 and emerges into the shroud through spaced circumferential apertures 76 in that part of the barrel 70 which is housed within the shroud.  Sealing rings 73 disposed between the barrel 70 and the shroud 69, like the sealing ring 74 disposed between the rotating boss 71 and the inlet pipe 42, serve to prevent escape of carbon bisulphide vapours from the churn.  Part-helical vanes 177 provided in the end of the barrel adjoining the outlet of the inner tube 72 prevent the material delivered from the outlet end of the inner tube 72 from dwelling in that end of the barrel and ensure that it will travel down the barrel as soon as it has been discharged from the tube 72.  The temperature of the barrel is controlled by means of a jacket 170 with inlet 171 and outlet 172. The rate of flow of material through the churn is determined (within the limits of feed-rate for which the churn is designed) by the speed of rotation of the churn and its angle of slope and is independent of the rate of feed.  An outlet manifold 77 depending from the shroud 69 is connected directly to the inlet of a dissolving and blending unit of the kind described in Specification 737,185.
Patent GB-137089-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K1/18
Filed: 1918-12-21
Abstract: 137,089. Harman, E. J., and Le Bas, E. Dec. 21, 1918. Casings and frames.-The stator laminµ 1, Fig. 1, are completely enclosed and secured by casting around them a housing 2 and end covers 3 with or without bearing-brackets for the rotor and a base for the machine. Either sand or die casting may be employed. The rotor 4, Fig. 2, and bearing-boxes 6, 7 can be placed in position or dismantled from either end of the stator structure, or may be passed completely through the stator.
Patent GB-1376973-A (GB)
Title: Method of growing monocrystalline semiconductor material
IPC: H01L21/208
Filed: 1972-05-09
Abstract: 1376973 Epitaxial substrate growth PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 9 May 1972 [12 May 1971] 21537/72 Heading BIS [Also in Division H1] A plate comprising a monocrystalline substrate of gallium arsenide on which, by liquid epitaxy, has been grown a monocrystalline semiconductor material consisting mainly of arsenic, gallium and aluminium is made by providing a saturated homogeneous solution of arsenic in a melt of gallium and aluminium in a crucible then contacting the solution at a temperature of (T3)C with the substrate and then cooling the solution in contact with the substrate. The temperature TC is defined by the equation: T=844+[(3200 log 10 (C L +0.7)]<SP>0.7575</SP> where C L  which lies between 0.05 and 0.8%, is the percentage by weight of aluminium in the solution calculated with respect to the weight of gallium in the melt which is in excess of the stoichiometric composition of gallium arsenide. If desired an n-type semiconductor material may be obtained by carrying out the liquid epitaxy in the presence of a flow of hydrogen which contains tellurium. The growth is effected by placing in a furnace 1, crucible 2, which is separated into two parts 3 and 8 by horizontally movable partition 5 via slots 6. As shown, 4 is the gallium arsenide substrate and 9 the mixture of the layer materials. The assembly is heated to the chosen temperature TC until a homogeneous solution of the materials is achieved, after which partition 5 is withdrawn and solution 9 then contacts substrate 4, and the crucible slowly cooled, e.g. by 200C. The coated substrate is subsequently withdrawn from the furnace and residual liquid gallium removed.
Patent GB-1142810-A (GB)
Title: A direct current self-synchronising cryogenic electric motor
IPC: C09B1/514
Filed: 1966-05-16
Abstract: 1,142,810. Electric motors. SOC. ALSACIENNE DE CONSTRUCTIONS ATOMIQUES DE TELECOMMUNICATIONS ET D'ELECTRONIQUE. 16 May, 1966 [17 May, 1965], No. 21557/66. Heading H2A. A cryogenic electric motor has a stator comprising a plurality of superconducting windings co-operating with a rotor in the form of a cylinder of superconducting material, wherein an axial extension of the rotor has a plurality of apertures which co-operate with pick-up members on the stator to control the current in the superconducting stator windings. As described the stator comprises three windings 2, 3 4 angularly spaced by 120 degrees and the external rotor comprises a niobium cylinder 8 which is milled longitudinally to provide a single turn 9. The skirt of the rotor cylinder 8 has two diametrically opposed apertures 10, 11 which co-operate with angularly spaced coils 5, 6, 7 mounted below the stator winding to form the pick-up members. Each of the coils 5, 6, 7 is connected in a bridge circuit which is supplied from oscillator 17 through a transformer and each bridge circuit is unbalanced when an aperture confronts a coil. The output current is applied to a transistor switch which allows current to flow from source 18 through the respective stator winding and thereby provide a rotating magnetic field to turn the rotor.
Patent GB-713667-A (GB)
Title: Improvements in or relating to frequency dividing regenerative modulators
Inventor: DODD GEORGE ALEXANDER
IPC: H03B21/02
Filed: 1951-09-13
Abstract: 713,667. Generating oscillations. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd. Sept. 4, 1952 [Sept. 13, 1951], No. 21570/51. Class 40 (5) A frequency-dividing arrangement comprises a plurality of frequency dividing loops of the type employing back-coupled modulators, a low-pass filter and an oscillator synchronized to a harmonic of the oscillation from the low-pass filter the oscillator feeding back to the input of the loop modulator, and the arrangement is such that each modulator other than the first is located in the preceding loop between the low-pass filter and the oscillator. As shown harmonic generators xp and xq and band-pass filters BPF may precede the oscillators OSC or may be omitted. If the selected harmonic orders are p-and q the input frequency f0 is reduced to f where f0=f (1+q+pq) and by taking the output at f, where f 1 =qf a non-integral reduction in frequency is produced. The insertion loss of the modulators may be made sufficient to prevent any output of the oscillators when the input is disconnected, or the output circuit may include a low-pass filter to prevent any oscillatory output with the input disconnected.
Patent GB-690750-A (GB)
Title: Improvements in windscreen wipers
IPC: B60S1/16
Filed: 1950-09-01
Abstract: 690,750. Windscreen cleaners. DUDLEY, W. Aug. 13, 1951 [Sept. 1, 1950], No. 21606/50. Class 138 (i). The wiper arm spindle 14, Fig. 1, is oscillated by an electric motor through a worm 6 and worm wheel 7, a train of spur wheels 10, 11, and a toothed sector 17 geared to the spindle 14. The motor spindle 5 passes through a boss 4 on the casing 3 of the motor, which boss 4 screws into a tapped hole in a gear box 1. The tapped hole allows passage of the worm 6 on the spindle 5. The spur wheel 18 is coaxial and rotatable with the worm wheel 7. An eccentric pin 16 on the spur wheel 11 is connected by a link 16a with the toothed sector 17 pivotally mounted in the gear box which sector meshes with a spur wheel 15 on the spindle 14. The gear 10 may have 15 teeth and the gear 11, 51 teeth, so that the extra strain on the gearing caused by each reversal of the wiper arm will be successively taken by all the teeth of the gearing. As shown in Fig. 2 the wiper spindle bearing sleeve 19 constitutes one of two studs 2 for fixing the gear box to the windscreen frame. The open end of the motor casing 3 is closable by a cap 20 having a motor switch operable by a knob 22 and internal and external plug pins. The internal plug pins of the cap engage in sockets on the casing 3, to fix the cap and electrically connect the motor with the external pins 21 through the switch.
Patent GB-745137-A (GB)
Title: Improvements in and relating to weighing apparatus
IPC: G01G23/08
Filed: 1952-08-28
Abstract: 745,137. Weighing apparatus. GASCOIGNES (READING), Ltd., and KINGSTON, J. A. Nov. 27,1953 [Aug. 28, 1952], No. 21662/52. Class 143 The load 5, e.g. a milk churn, is attached to the movable diaphragm 9 of a pneumatic device 16 which is suspended from a spring balance 1, so that as the pressure in space 7 is reduced, the diaphragm 9 gradually lifts the load 5 thus avoiding any shock on the spring balance. In a modification, Fig. 2 not shown, the churn is placed on a platform moving in fixed guides, and lifted by the pneumatic device.
Patent GB-1131875-A (GB)
Title: An improved composition for use in coating or plastering walls and other surfaces
Inventor: CARO ERIC STUART
IPC: C04B28/04
Filed: 1966-05-16
Abstract: 1,131,875. Cement compositions. ENG. ALLIANCE Ltd. 17 Feb., 1967 [16 May, 1966], No. 21709/66. Heading C1H. A wall plasticizing composition comprises cement, clay, Ca stearate and lime. An aggregate, e.g. sand; a pigment; and mica are optionals. Water is added when the composition is used. The stearate and lime in a 1 to 4 ratio act as a waterproofing agent. Examples of coloured compositions are given.
Patent GB-149846-A (GB)
Title: Improvements in clamping chock
IPC: B25H1/00
Filed: 1919-09-04
Abstract: 149,846. Bonham, E., and Wiltbank, J. C. Sept. 4, 1919. Clamps; vices.-A clamp comprises a fixed jaw, a guide block adjacent the fixed jaw and having a guide face which is oblique to the gripping-face of the fixed jaw, and a wedge-shaped movable jaw slidably mounted on the guide face and having a gripping-face parallel to that of the fixed jaw, the movable jaw having a projection guided in a slot in the fixed jaw and adapted to be engaged by the object to be clamped to operate the movable jaw and also to form a stop for the object. As shown, a body 3 adapted to be secured to a bench 14 is provided with a notch, the face 5 of which forms the gripping-face of the fixed jaw 6, and the oblique face 7 of which forms the guide face for the movable jaw or wedge 9, which is provided with a projection 12 engaging a slot 13 in the jaw 6. The work or object to be clamped is pushed against the projection 12, causing the wedge to move along the guide face 7 and grip the work, the projection 12 also forming a stop to prevent further inward movement of the work.
Patent GB-294656-A (GB)
Title: An improved means for preventing the deposition of scale in steam boilers
IPC: C02F5/08
Filed: 1928-07-26
Abstract: 294,656. Bardt, H. July 29, 1927, [Convention date]. Incrustation, preventing.-Deposition of scale in steam boilers is prevented by adding a mixture of activated carbon and a metallic powder, such as copper, which is electronegative to iron.
Patent GB-934973-A (GB)
Title: Inhalator and resuscitator
IPC: A61M16/00
Filed: 1962-06-05
Abstract: 934,973. Respiratory appliances. J. J. McCLEAN. June 5, 1962 [June 13, 1961], No. 21767/62. Class 81 (2). A resuscitating apparatus comprises a main container 1 divided into two compartments 2A, 3A by a flexible diaphragm 8 which is moved to and fro by respiratory action of the operator, using a mouthpiece 16. The resultant pumping action of the diaphragm on the air in the chamber 3A causes it to be circulated, to and from the patient's lungs, using mouthpiece 41, through a closed circuit system comprising a delivery tube 25 and a return tube 24, the latter incorporating a carbon dioxide absorber 30. Non-return valves 37, 40 ensure a correct circulation of the gas and a relief valve 26 may be fitted to avoid the building up of excessive pressure. Oxygen is admitted to the system from a container 48 through a plunger-operated valve 49 and preferably the compartment 3A is filled with oxygen, by this means, before resuscitation is commenced.
Patent GB-354975-A (GB)
Title: Manufacture of optically active phenylpropanol-methylamines
Filed: 1930-07-18
Abstract: In the resolution of 1-phenyl-2-methylaminopropanol-1 by means of d-tartaric acid in the presence of certain organic solvents, the d- and l-bases obtained are freed from contaminating racemic base by treatment with petroleum ether, benzine, ligroin, or cyclohexane, in which the racemic base is only sparingly soluble. The organic solvents employed in the resolution are those from which the d-tartrate of the d-base crystallizes first; ethyl alcohol, propyl alcohol and water are specified in this connection.  Examples are given in which the d- and l-bases, obtained from their d-tartrates by addition of alkali, are boiled with a small quantity, or recrystallized from a larger quantity of petroleum ether, benzine, cyclohexane or ligroin, whereby the contaminating racemic base remains undissolved or separates.
Patent GB-168749-A (GB)
Title: Improvements in or relating to handle attachments for tea and coffee strainers and other metallic household utensils or vessels
IPC: A47J45/06
Filed: 1920-07-22
Abstract: 168,749. Buncher &. Haseler, Ltd., and Rogers, R. C. July 22, 1920. Strainers for kitchen use.-A handle for a colander, or othe metallic household utensil is formed from a blank of the form shown in Fig. 2 or Fig. 5, the part b forming the handle proper and the parts b<4> being twisted at right-angles and bowed out into circular shape as shown in Fig. 3 to embrace the utensil. The circular band thus formed is held in place by small punchings from the inside of the utensil body. Triangular parts b<3> may be formed and bent so as to abut against the sides of the utensil and, for strainers, an auxiliary supporting arm b<1> may also be employed.
Patent GB-912991-A (GB)
Title: Improvements in connections for tubes and pipes
IPC: F16L19/10
Filed: 1960-06-23
Abstract: 912,991. Pipe joints. GRESSEL A. G., EDM. June 23, 1960 [June 24, 1959], No. 22057/60. Addition to 839,399. Class 99(1). In the pipe connection described in the parent Specification comprising coupling members 3, 4 engageable by screw threads, and packing sleeves 7, 8 which receive the ends of tubes 1, 2, the sleeves having external conical surfaces 9, 10 of a smaller angular inclination than the conical bores 5, 6 of the coupling members, the angles of inclination 25, 26 of the bores 5, 6 are different from one another. The angle 25 of the conical bore of the member 3 relative to the axis of the member may be between 1.5 degrees to 5 degrees larger than that of the conical bore of the member 4, and the differences in angle of the surfaces 5, 6 and 9, 10 may be 5 degrees alternatively, the angle 26 is larger than the angle 25.
Patent GB-614970-A (GB)
Title: Improvements in or relating to the winding of commutator machines
IPC: H02K15/09
Filed: 1946-07-24
Abstract: 614,970. Windings for dynamo-electric machines. MALCHUS, J. A. C. July 24, 1946, No. 22103. Convention date, March 6, 1943. [Class 35] In winding an armature for small commutator machines using a pair of wires subsequently connected in series, the end wires of each coil are brought to the commutator end of the armature through the slot adjacent that accommodating the beginning of the coil instead of the slot traversed by the returning conductors of the coil. As shown, a coil 3 has starting wires 4 wound into a slot 13 and returning through a slot on the opposite side of the armature. The finishing wires 7, instead of passing down this latter slot, use the adjacent slot 14, a loop being formed round the end of the tooth between the slots. Having traversed the slot 14, the wires 7 are secured round a hook 8 on a spider 6 temporarily secured to the shaft, and doubled back into the same slot 14 to commence the next. coil. The pair of wires used are coloured black (A) and red (B) respectively, and the four wires (e.g. ae, be, ab, bb) leaving any slot, e.g. 14, are connected so that, for instance, the two red wires (be, bb) are connected to the segment 15 opposite the slot, whilst the black ones (ae, ab) are connected one each to the segments 18 and 19 on either side. This procedure is reversed for the four wires from the next slot, e.g. 15, and the pair of black wires are connected to the opposite segment 16. This connection places all the coils in series.
Patent GB-1474020-A (GB)
Title: Builders scaffolding
IPC: E04G7/30
Filed: 1974-05-09
Abstract: 1474020 Scaffolding joints KWIKFORM Ltd 9 May 1974 [9 May 1973] 22112/73 Addition to 1386238 Heading F2M A horizontal elongate scaffolding member 12 is provided at one or each end with a dependent spigot 14 adapted to be inserted in a socket on an upright (not shown), and with a wedge 20 guided adjacent the spigot for retaining the spigot in the socket by engaging an inclined face 15a, 16a of the spigot and an interior face of the socket, the end of the member 12 being formed with a pair of vertically-spaced portions having longitudinal slots 17 within which the spigot is welded, the wedge being vertically slidably received within the slots between their closed inner ends and the spigot, which latter is of channel-section with its mouth directed towards and partly receiving the wedge, part of the web 15 of the channel at the upper end of the spigot forming part 15a of the wedge engaging face, a further part of the channel web being adapted to engage the upright, and a further part 16a of the wedge engaging face being formed by a bearing member 16 between the channel sides near the lower end of the spigot. The face 15a is provided by an inwardly recessed part of the web, and the member 16 may comprise a block welded in place, or inwardly bent integral flanges. The wedge may be retained in its raised inoperative position by engaging a projection 20c thereof in the corner between the member 12 and the spigot, and resting the wedge against the inner end of the upper slot, beyond which its centre of gravity lies.
Patent GB-912564-A (GB)
Title: Polymeric compositions
IPC: C08K5/20
Filed: 1961-06-19
Abstract: A crystalline polyolefin such as polypropylene, is stabilized with an organic compound <FORM:0912564/IV(a)/1> wherein R is aryl which may be substituted with alkyl, alkoxy or acyl.  Specified stabilizers are the 2-, 3- and 4-benzamidophenols.  Calcium stearate may be included as an antiacid agent.  The compositions, which may be formed with or without the aid of solvents, may be made into filaments, fibres or film.  Specification 828,791 is referred to.
Patent GB-203688-A (GB)
Title: Improvements in and connected with the control of pouring in metal casting machines
IPC: B22D13/10
Filed: 1923-09-04
Abstract: 203,688. Soc. Anon. MÚtallurgique d'Aubrives et Villerupt. Sept. 5, 1922. [Convention date]. Foundry ladles; melting-pots.--The Specification as open to inspection under Sect. 91 (3) (a) describes a reservoir 33, for supplying molten metal to moulds, which may have an overflow 46, Fig. 14 (Cancelled), to determine the head. A nozzle 34, Fig. 8 (Cancelled), of a size to obtain the flow required, is secured by cotters to the reservoir. If one reservoir supplies a number of moulds the nozzles may be controlled by valves 42, Fig. 14 (Cancelled). Heating burners 44 may also be employed. This subject-matter does not appear in the Specification as accepted.
Patent GB-297935-A (GB)
Title: Apparatus for repairing and/or renovating pneumatic or other tyres and the like
IPC: B29C35/00
Filed: 1927-08-24
Abstract: 297,935. Dunlop Rubber Co., Ltd., Willshaw, H., and Norcross, T. Aug. 24, 1927. Vulcanizing-moulds, cores.- A repairing mould comprises a fixed core 3 and converging tread, side and bead members 6, 4, 5. The members 3--5 can be readily replaced by others of different size or shape and a matrix is made in the member 6 from the tyre under repair. The members 3, 4 and 6 and, if desired, the members 5, are heated and cooled individually, the same pipes being used for the heating and cooling fluids. The members 5, 6 are caused to approach each other by rotating a hand-wheel 19 which according to its axial position drives either of two screwed spindles carrying the holders of the members 4, 5 respectively. The holders of the members 4 are pivoted to enable them to accommodate themselves to the tyre, the pivotal movement being limited by adjustable stops 15. The tread member 6 is carried by a bracket 26 connected to a counterwieght 29<a> by chains passing over sprockets which are rotatable by a handwheel 45. A fine adjustment of the bracket is provided by a hand-wheel 28 which through a clutch and worm gearing rotates a pinion 27 meshing with a rack on the support. To make a matrix, an uninjured portion of the tyre is placed on the mould, the member 6 is run up until it engages the side members, and an adjustable stop 39 is set in contact with a projection 40 on the bracket. The side and tread members are then withdrawn and side plates 44 are secured to the latter which is then filled with type metal, further plates, which may be detachable, confining the metal at the ends. Clay, rubber &c. may be packed between the plates and the tyre surface. When the matrix is formed, the side plates 44 are removed.