baber/WOPTO huggingface dataset:
Patent GB-982097-A (GB)
Title: Composition containing elastomeric polymers and/or copolymers vulcanizable by means of peroxides
IPC: C08L9/00
Filed: 1962-04-26
Abstract: Vulcanizable elastomeric compositions comprise as its main component at least one elastomeric polymer and, an organic peroxide and optionally sulphur as vulcanizing agents, together with at least one diene polymer prepared by means of a lithium catalyst and of intrinsic viscosity 0.1-1.  The main component may be a copolymer of ethylene with propylene or butene-1, polybutadiene and/or polyisoprene, a copolymer of butadiene with styrene.  The diene polymer, e.g. up to 20%, is polybutadiene, e.g. of intrinsic viscosity 0.4-0.6, polyisoprene or a copolymer of butadiene or isoprene with styrene.  The lithium catalyst is an organometallic lithium compound, e.g. butyl lithium or a dispersion of lithium in a hydrocarbon and the diene polymerization is carried out in bulk or in an organic solvent using tetrahydrofuran as promoter.  In examples, compositions containing carbon black, mineral oil and zinc oxide together with sulphur and cumyl peroxide were vulcanized.  The compositions may be used to form articles.  Specifications 878,004 and 927,874 are referred to.
Patent GB-668322-A (GB)
Title: Improvements in frame-coal cutters
IPC: E21C27/04
Filed: 1949-06-16
Abstract: 668,322. Endless-chain mining-machines. DEUTSCHE KOHLENBERGBAU-LEITUNG. June 16,1949. [Oct. 1, 1948] No. 16074/49. Class 68 (i). The rectangular main cutter frame 5 of a coal cutter has secured to the chain sprocket at the innermost end of the lower run a sprocket wheel 8 that drives the chain of an auxiliary cutter frame the periphery of which is in the form of a right-angled triangle. Each side of the triangular frame is formed of telescopic members 10/11, 12/13, 14/15 and are so connected together that the configuration of the triangle can be varied without altering the length of the periphery of the frame. Positioned behind and connected to the telescopic portions of each side of the triangle are screw mechanisms 18, 19 which are so connected together that the lengthening of one of the sides results in the equivalent shortening of the other side, any variation being taken up by the parts of the side which are connected together by the compression spring 17. The auxiliary frame is rigidly secured to the main frame but may be detached therefrom and swung about the axis of the sprocket 8. A shaft drive to the innermost end of the transverse conveyer is taken from the sprocket and the innermost end of said conveyer is pivotally connected to the main frame by links, the outer end being secured to a slide formed on the motor casing which moves along the sides of the face conveyer.
Patent GB-313046-A (GB)
Title: Improvements in electric vacuum tubes
IPC: H01J21/02
Filed: 1929-05-25
Abstract: 313,046. Arcturus Radio Tube Co., (Assignees of Krahl, W. L.). June 5, 1928, [Convention date]. Vacuum tubes.-In thermionic valves having cathodes adapted to be heated by fluctuating current, screens are provided to shield the anode completely from the cathode and the control electrode. A screen 33 is placed between the anode 13 and the grid and a screen 38 is placed outside the anode, both screens extending above and below the anode. They are connected together at the top by an annular metal plate 43 and at the bottom by common support wires 36. An annular screening-plate 49 extends inwardly from the bottom of the inner screen 33 nearly to the cathode 15. The grid is supported by stay wires 21 extending above the screen 43 to meet support wires sealed into a glass bead 25. The grid is connected to a terminal 60 at the top of the envelope while the other electrodes and screens are connected to the usual pins in a base cap, the interelectrode capacity being thereby minimised. The upper end of the heating-wire 16 is supported by a spring 31. The upper and lower ends of the cathode tube 15 and the upper end of the heating- filament are electrically connected together. Reference has been directed by the Comptroller to Specification 294,125.
Patent GB-1168532-A (GB)
Title: Improvements in and relating to Electro-Mechanically Operable Counters
Inventor: HUBER MANFRED
IPC: G06M1/10
Filed: 1967-04-08
Abstract: 1,168,532. Electromagnetic counters. ENGLISH NUMBERING MACHINES Ltd. 12 March, 1968 [8 April, 1967], No. 16192/67. Heading G4D. [Also in Division H1] The armature 4 of an electromagnetic counter is constrained by a projection 5 engaging a slot 6 to move in a direction perpendicular to the poles of the magnets 2, 3. An extension of the armature is connected to a lever carrying a pawl 18 which advances a gear-wheel 19. The gear drives a numeral drum 20 visible through a window 22, and may also drive a printing wheel. The armature extension carries a leaf or wire spring 10 bearing against cams 16, 17 which can be turned to adjust spring tension.
Patent GB-1070179-A (GB)
Title: Airway suction catheter
IPC: A61M1/00
Filed: 1966-04-13
Abstract: 1,070,179. Catheters. BRUNSWICK CORPORATION. April 13, 1966 [April 15, 1965], No. 16206/66. Heading A5R. An airway suction catheter comprises a flexible elastomeric elongated tube having a distal end and a proximal end, a suction control aperture in the peripheral wall of the tube in the region of the proximal end, and a flexible sleeve fricionally engaging the tube and movable relative to the tube to cover, partially cover or uncover the suction control aperture thereby to control the amount of suction administered to a patient. The flexible sleeve preferably is adapted to be rolled upon the tube thus to provide the relative movement between the tube and the sleeve. As illustrated in Figure 1, airway suction catheter tube 10 has a proximal end 12, which end may be inserted in a tube 15 connected to a suction device, for example a suction pump (not shown), and a distal end 14 having an end opening 17 and an opening 18 in the peripheral wall. A longitudinally extending line 16 of X-ray-opaque material may be embedded in the wall of the catheter tube, a further aperture 19 in the wall of the tube at the distal end thereof interrupting the X-ray-opaque line and serving as an aid to the location of the distal end of the tube. A flexible and movable sleeve 20, for example of latex rubber, frictionally grips the external surface of the catheter tube to cover a control aperture 21 formed in the distal slope of the fusiform section 11 adjacent the proximal end of the catheter tube, the sleeve being adapted to be rolled back upon itself to form a ring and to uncover the suction control aperture, and to be unrolled from this position either to partially cover or to completely cover (as shown in Figure 1) the suction control aperture. When the sleeve is rolled upon itself, the ring preferably applies sufficient pressure to create around the catheter tube a circular indentation having a semi-permanent set and serving to limit the rolling of the sleeve. The catheter may be packaged, with the sleeve rolled to form the ring, in a sterile container.
Patent GB-501129-A (GB)
Title: Improvements in drying apparatus
IPC: F26B17/10
Filed: 1938-06-02
Abstract: 501,129. Drying granular and fibrous materials and vegetable crops. STURGEON, R. A. June 2, 1938, No. 16211/37. [Class 34 (ii)] Vegetable crops in finely divided form or granular or fibrous materials are dried while carried in a stream of hot air in a substantially vertical chamber having a lower part 4A of substantial length of diverging form, e.g. at an angle of 14‹ so as to give a decreasing gas velocity, and an upper part 4B of substantially constant cross section. Several chambers may be connected in series by downflow ducts 5 of wider cross section. The material is subdivided at 2 and fed on to a plate 12 to be lifted by gas entering at 3 ; the velocity of the gas may bo intermittently increased to empty the chamber. The gas may be recirculated from the fan 9, which may be placed in the duct 5. The material is discharged in a cyclone 13 connected to a hopper with two chambers 16, 17 each with a valve 18, for use in turn.
Patent GB-439189-A (GB)
Title: Improvements in and relating to lanterns for electric and other lamps
IPC: F21V3/00
Filed: 1934-05-31
Abstract: 439,189. Lantern fronts. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, MAXTED, R., 161, Clifton Road, and TUPPEN, E. B., 54, Hillmorton Road, both in Rugby. May 31, 1934, No. 16270. [Class 75 (ii)] A lantern employing a high power lamp has its normally upper glazed part formed by a pair of parallel glass panels 6, 7 arranged at an inclination to the horizontal so that a current of cooling air is induced to flow between them. With this construction, the protected or inner panel may be of heat resisting glass, while the outer panel 7, by reason of its relatively low temperature, may be of ordinary commercial glass to suit the optical effect desired and is, moreover, not likely to be damaged by heavy rain &c.
Patent GB-474531-A (GB)
Title: Improvements relating to radial arm drilling machines
IPC: B23Q1/28
Filed: 1936-06-11
Abstract: 474,531. Drilling machines. ARCHDALE & CO., Ltd., J., and FEATHER, G. June 11, 1936, No. 16304. [Class 83 (iii)] Mechanism for simultaneously locking the arm to the column and the saddle to the arm in radial-arm drilling-machines, and under the control of a single hand lever on the saddle, comprises the combination of a friction pad e carried on the arm a and adapted to bear against the column f, or a ring g which embraces the column, a rotatable shaft b, carried on the arm and having a screwthread connection therewith for actuating the pad, a friction pad l carried on the saddle i and adapted to bear against the arm, a rotatable shaft on the saddle having an eccentric portion k for actuating this pad, means for connecting the two shafts and a hand lever v on the saddle for actuating the shafts. A link p connects the shafts through levers g, s on sleeves r, t respectively, the latter sleeve being carried by a bearing u on the saddle which moves along a recessed portion of the arm. The sleeve t carrying the lever v is slidably keyed to the shaft b.
Patent GB-1218545-A (GB)
Title: Improvements in or relating to paper-sheet conveying mechanisms
Inventor: BLAKE EDWARD JOHN
IPC: B65H9/16
Filed: 1967-04-10
Abstract: 1,218,545. Sheet - feeding; registration. CAMCO (MACHINERY) Ltd. 28 March, 1968 [10 April, 1967], No. 16383/67. Heading B8R. A feed table comprises an endless belt extending longitudinally of the table at a small angle to a side-lay plate, and means to vary the angle. Fig. 1 is a perspective view of a table formed of side frames 10a, 10b and transverse bars 10c; this stationary structure supports a carriage 11 transversely movable on bar 16 and which can be clamped in position by screw 17, further fine adjustment being possible by means of knob 20 which interacts with a threaded end of bar 16 to move it, and the carriage, bodily. Sheets are conveyed by endless belt 32, see also Fig 4, whose position is adjustable with respect to side-lay plate 38, so that the edges of sheets are aligned against plate 38. Sheets are held in contact with belt 32 by means of steel balls (54), (Fig. 3, not shown) in blocks 46 carried on a bar 45, adjustable with the belt 32, supported by transverse bearers 52, 53; these bearers also support sheet-smoothing strips 48 disposed above a plurality of support strips 47 which are, fixed to the table in the same plane as the upper rim of belt 32 so that sheets pass between the units 47, 48 during conveying. Adjustment of belt.-Fig. 4 illustrates a support bar 21 disposed between the side limbs 12 of carriage 11 in bearing brackets 22, (25), (Fig. 6, not shown), carrying horizontal spindles (23), (Fig. 5, not shown), 26 for pulleys 24, 27 around which the belt 32 is trained. The bearing bracket 22 is pivoted to the end bracket 13, Fig. 1, of the carriage by means of a vertical pivot pin (28), (Fig. 6, not shown), and can be secured at any desired angle of inclination to the sheet-feed direction X, the entire belt 32 and bearings being thus pivoted. The belt is driven from shaft 33 by means of chain 34, shaft 35 and a flexible coupling 37 to the pulley 24. Side-lay plate 38 can also be pivoted about pin 39 by screw 40 and the plate is provided with a groove of V-section which is horizontal and coincident with the conveying plane so that the edge of belt 32 runs in the groove, and sheets are engaged by the latter as they are forwarded and simultaneously aligned.
Patent GB-1084962-A (GB)
Title: Sealed cadmium-nickel alkaline battery
Inventor: TENIKOVTSEV VITALY VLADIMIROVI
IPC: H01M10/34
Filed: 1965-04-15
Abstract: 1,084,962. Batteries. GOSUDARSTVENNY SOIUZNY NAUCHNO ISSLEDOVATELSKY AKKUMULIATORNY INSTITUT. April 15, 1965, No. 16393/65. Heading H1B. A sealed nickel-cadmium alkaline battery wherein the positive electrodes are sintered nickel oxide and the negative electrodes comprise cadmium active material pasted on to a metal grid. A gas absorbing carbon electrode is electrically connected to the negative electrodes.
Patent GB-168700-A (GB)
Title: Improvements relating to baby carriages
IPC: B62B9/12
Filed: 1920-06-18
Abstract: 168,700. Richards, O. O. June 18, 1920. Seats and seat backs, arrangement of.-A baby carriage has a seat pivoted along one edge at or near the centre of the underframe so that it can be turned over on to either end of the frame. On each side of the underframe a of a baby carriage is erected a post e to the top of which is pivoted an horizontal arm f supporting at its other end a bar g connected by a bar h to the lower portion of the post e. The frames e, f, g, are connected by transverse rods carrying the seat in and seat back 1.
Patent GB-785525-A (GB)
Title: Process for preparing a glucosamine
IPC: C12P19/26
Filed: 1956-05-30
Abstract: 4 - O - b  - D - galacto - pyranosyl - N - acetyl - D-glycosamine, which is active in promoting growth of Lactobacillus bifidus var. pennsylvanicus A.T.C.C. No. 11,863, is obtained by reacting lactose and N-acetyl-D-glucosamine in the presence of living intact cells of said microorganism.  The reaction may be effected in a pH range 4-7, e.g. at a pH of 5.4, and in a temperature range 15-40 DEG  C., e.g. 37 DEG  C.  The pH may be maintained by a phosphate buffer.  The product is isolated by chromatography and crystallization.  The examples indicate that anaerobic conditions lead to the greatest yields of 4 - O - b  - D - galacto - pyranosyl - N - acetyl - D-glucosamine.  Specification 746,834, [Group VI], is referred.
Patent GB-864486-A (GB)
Title: Process for manufacturing phenol and acetone from cumene hydro-peroxide
IPC: C07C37/08
Filed: 1958-05-23
Abstract: A process for producing phenol and acetone by decomposing cumene hydroperoxide by means of concentrated sulphuric acid is characterised in that a solution of the cumene hydroperoxide in cumene at a concentration of at least 70% by weight and concentrated sulphuric acid are gradually added to cumene or to a previously decomposed solution of cumene hydroperoxide in cumene, the rate of addition being so controlled that the concentration of the acid in the reaction mixture is maintained in the range of from 0,1% to 1,1% by weight throughout the process.  The process may be operated continuously.  Examples are furnished. Specification 684,039 is referred to.
Patent GB-296154-A (GB)
Title: Improvements in and relating to cooling gas turbines
IPC: F02C7/16
Filed: 1927-06-23
Abstract: 296,154. Holzwarth Gas Turbine Co. of America, and Holzwarth, H. June 23, 1927. Cooling parts.-The combustion chamber 1, nozzle valves 2, and nozzle ring 3 of a gas turbine are cooled by circulating oil of a high boiling point therethrough and passing it to a heat exchanger 6 where the heat is utilized for example to heat feed water. A pump 5 circulates the oil.
Patent GB-948189-A (GB)
Title: Polyamides from aromatic acids and products made therefrom
Inventor: GABLER RUDOLF
IPC: C08G69/26
Filed: 1961-05-08
Abstract: Linear polyamides are made by condensing tere-and/or iso-phthalic acid with a substantially equimolar proportion of a polymethylene diamine having at least seven methylene groups one or more of which is substituted by alkyl groups each carbon atom of which carries at least one hydrogen atom and which together contain at least three side chain carbon atoms. Specified alkyl substituted diamines are 2-methyl-4-ethyl heptamethylene diamine, 2-ethyl-4-methyl-heptamethylene diamine, 2:2:5:5-tetramethyl heptamethylene diamine, 3-isopropyl heptamethylene diamine, 3-isooctyl heptamethylene diamine, 3:3:5-trimethyl octamethylene diamine and 2:4-diethyl octamethylene diamine. In the examples, polyamides are made from:-(I) terephthalic acid and 2-methyl-4-heptamethylene diamine; (II) terephthalic acid and 3:3:5-trimethyl octamethylene diamine; (III), (IV) and (VII) tere- and iso-phthalic acid and 2-methyl-4-ethyl-heptamethylene diamine; (V) tere- and iso-phthalic acid and 3:3:5-trimethyl octamethylene diamine, and (VI) tere- and iso-phthalic acid and 2:4-diethyl octamethylene diamine.  Specification 919,096 and U.S.A. Specification 2,752,328 also are referred to.
Patent GB-1442693-A (GB)
Title: Method of manufacturing a junction field effect transistor
IPC: H01L21/337
Filed: 1974-04-17
Abstract: 1442693 JUGFETS MATSUSHITA ELECTRONICS CORP 17 April 1974 [20 April 1973] 16810/74 Heading H1K A JUGFET is made by first pre-diffusing acceptor impurity into an N-type region, e.g. a junction-silated portion of an epitaxial layer on a P-type silicon substrate, exposing a central portion of the pre-diffused region by selective removal of overlying insulation and diffusing arsenic into the exposed portion with simultaneous in-diffusion of the acceptor impurity to form an N-type gate region overlying a P-type channel between P-type source and drain regions. The arsenic acts to reduce the rate at which the P-type dopant diffuses thereby producing a thin channel region consonant with low pinch off voltage. In an example the acceptor boron is diffused to a depth of 0À4 Á with a surface concentration of 5 x 10<SP>18</SP> atoms/ cm.<SP>3</SP>, and the arsenic diffused at 1050‹ C. for 30 minutes from a deposited oxide film. Contacts are made to the gate region and via heavily doped diffusions to the source and drain regions.
Patent GB-497400-A (GB)
Title: Improvements in or relating to valves for controlling the delivery of liquid under pressure
IPC: B67D7/42
Filed: 1937-06-17
Abstract: 497,400. Fluid - actuated valves. BECK & CO., Ltd., and SOAR, H. G. June 17, 1937, No. 16879. [Class 135] A liquid dispensing valve which can only be opened when liquid; under pressure, say from a pump, is being delivered thereto comprises a spring- loaded main valve 4, a hand or mechanically operated actuating device such as the lever 21, and two supplementary valves 16, 22 of which one, when operated by the actuating device, withdraws the loading spring 15 without opening the main valve, the other supplementary valve 22 and the main valve being subsequently opened by the delivery of liquid under pressure to the valve casing. The dispensing nozzle shown in Fig. 1 comprises a main valve 4 seating at 6 on a partition in the casing 3 and having an extension 7 freely slidable in a cylinder 8 so that static or supply pressure in the tubular handle portion 1 has access to the space behind the valve 4. The latter has a central passage 12, at the ends of which seat the supplementary valves 16, 22. The valve 16 is loaded by a spring 15 which also aids the static pressure in closing the main valve, and has a stem 18 carrying a nut 20 engaged by a hand lever 21. The other supplementary valve 22 is loaded by a spring 23 abutting a plate 25 carried by the valve 4 and serving to hold a packing 5 in position. The plate 25 has projections 26 which aid in guiding the main valve 4. When the valve 16 is opened by the lever 21, the static pressure within the cylinder 8 is insufficient to open the valve 22 and aided by a further spring 15x maintains the main valve closed until the liquid delivery pump is started, whereupon the valve 22 opens and the supply pressure acting on the overhanging part 4x of the main valve opens the same. The valve 22 is prevented from closing so long as the liquid is flowing by a plate 27 at the end of its spindle 24. When the lever 21 is released, all the valves return to the closed position and the hose between the pump and the main valve is left full of liquid which can only be released by the lever 21 when the pump is in action.
Patent GB-121110-A (GB)
Title: Improvements in Resilient Heels.
Inventor: BROCKETT BLUFORD WILSON
IPC: A43B21/26
Filed: 1918-10-16
Abstract: 121,110. Brockett, B. W. Oct. 16, 1918. Protectors, construction of. -A non-slipping tread for a resilient .heel is formed by the provision of a number of transverse saw-teeth 3 the long sloping back surfaces 7 of which intersect the front surfaces 8, which are preferably inclined, to form relatively sharp edges 6 adapted to exert a squeegee effect on the pavement &c. The teeth 3 are also inclined laterally across the heel, and preferably each tooth has two portions oppositely inclined and meeting in a sharp point 9 along the centre line of the heel. The rear tooth 3 has its bottom surface 5 in an horizontal plane.
Patent GB-861123-A (GB)
Title: Improvements in or relating to apparatus for generating electrical pulse signals
IPC: H03K5/156
Filed: 1957-05-29
Abstract: 861,123. Pulse delaying circuits. FERNSEH G.m.b.H. May 29, 1957 [May 30, 1956], No. 17033/57. Class 40 (6). The invention relates to delaying circuits in which a saw-tooth waveform is derived from a synchronizing pulse and in which an output is produced when the sawtooth wave reaches a predetermined amplitude the delay time being unaffected by variations in frequency of the synchronizing pulses. The Figure shows a pulse delaying circuit in which a train 11 of synchronizing pulses is applied to a device 1 which generates a train 12 of sawtooth waveforms of the same repetition frequency. From the train 12 is produced a similar train 12<SP>1</SP> of sawtooth waveform which is applied to peak rectifier circuit 3, 4, 5, so that the sawteeth are clipped at constant amplitude to produce an output pulse train on lead 10. To prevent the difference in clipping level which would result from an increased frequency of the pulse train 11 producing a reduction in the amplitude of the sawtooth wave train 12<SP>1</SP> the sawtooth wave 12 is itself peak rectified by the circuit 7, 6, 8, 9 to produce a bias voltage for the grid of tube 4. Thus an increase in amplitude of the signal applied to this grid is accompanied by an increased bias voltage across resistor 8 forming part of the grid leak of tube 4. By an appropriate choice of the values of resistors 13, 14 and thus of the amplitude ratio of sawtooth 12, 12<SP>1</SP> the effects of varying frequency of pulse train 11 can be exactly compensated. In the modification shown in Fig. 2, a sawtooth waveform generated under the control of synchronizing pulses by a circuit, not shown, are applied at terminal 16 to a first peak rectifier, including diode 28 and a derived train of sawtooth pulses is applied to a second peak rectifier consisting of a diode 19, resistors 20, 29 and capacitor 21. Capacitor 21 is charged during positive peaks of the applied voltage and its mean potential is determined by the current flow through resistor 20. The resulting positive pulses are differentiated by inductor 23 and the negative oscillations damped by rectifier 24. The voltage across the element 29 of the leak resistor 20, 29 is varied by peak rectifier circuit 28, 29, 31. In the modification shown in Fig. 3, sawtooth pulses are received at terminal 35 from a source, not shown, which is synchronized by a pulse synchronizing train. The sawtooth are peak rectified by circuit 36, 37, 38 the latter constituting the internal resistance of tube 38. The sawtooth pulses are applied to circuit 41, 42, 43, the secondary of transformer 43 being tuned by capacitor 44 and the resulting voltage rectified by diode 45 to form a bias for tube 38. By adjustment of the resonant frequency of the circuit the rectified voltage for applying to tube 38 remains constant over a selected frequency range, Fig. 4, not shown.