baber/WOPTO huggingface dataset:
Patent GB-1006240-A (GB)
Title: Delta modulator for a time division multiplex system
Inventor: TYRLICK WILLIAM VASIL
IPC: H04B14/06
Filed: 1962-07-11
Abstract: 1,006,240. Selective signalling. GENERAL DYNAMICS CORPORATION. July 11, 1962, No. 26647/62. Heading G4H. [Also in Division H4] In a time division multiplex delta modulation system, at the transmitter the signals on lines 1 to n, Fig. 1, are sampled sequentially at gates 100-1 to 100-n and the time multiplexed samples are supplied as one input to an amplitude descriminator 102. The output of discriminator 102 is supplied to an AND gate 104 and also via an inverter 106 to an AND gate 108, both gates being controlled by clock pulses applied to their second input. An output from gate 104 switches a bi-stable device 110 to one condition and an output from gate 108 will switch it to the other condition, these conditions supplying an add control signal or a subtract control signal respectively to a multiplex adding and subtrating arrangement 112, Fig. 2 (not shown), each stage of which provides a delay of one frame period, also controlled by the clock pulses. The output from the counter 112, which represents in parallel binary form the corresponding signal in the previous frame, is supplied to a digital to analogue converter 114 which provides the second input to the amplitude discriminator 102, an output signal being provided from discriminator 102 only when the incoming signal from the gates 100-1 &c. exceeds that supplied by the converter 114. An output signal from discriminator 102 increases the number stored in adder 112 by one unit and causes the digital to analogue converter to apply an incrementally larger amplitude signal to the discriminator 102 during the next frame, and no signal from discriminator 102 causes a decrease by one unit and the application of a correspondingly lower amplitude signal to the discriminator 102. Thus the adder 112 acts as an integrator in which the binary number equals the total number of added units accumulated minus the total number of subtracted units accumulated. The signal from AND gate 104 also is supplied via a transmission path 116 to an AND gate 118 at the receiver, and via an inverter 120 to an AND gate 122, clock pulses being applied as second inputs to the gates. The respective outputs of gates 118, 122 control a bi-stable device 114 as at the transmitter to produce an add or a subtract control signal operating an adder 126 similar to the adder 112. The output of the adder 126 is converted to an analogue signal at 128 and supplied via an amplifier 130 and gates 132-1 &c. to the respective output circuits.
Patent GB-443601-A (GB)
Title: Improvements in and apparatus for the separation of undissolved liquid or solid constituents from liquids
IPC: B01D17/02
Filed: 1934-09-17
Abstract: 443,601. Gravity-separation apparatus. COUTTS & CO., 440, Strand, London, and JOHNSON, F., 218, Victoria Drive, Eastbourne, [Representatives of JOHNSON, J. Y.].- (I. G. Farbenmdustrie Akt.-Ges.; Frankforton-Main, Germany) Sept. 17, 1934, No. 26660. [Class 46] In apparatus for separating solid or liquid matter from a heavier liquid comprising two or more chambers connected so that the heavier liquid passes through an overflow from the bottom of one chamber to above the liquid level in the next, each overflow is provided with an inclined surface such that the liquid is delivered at a low velocity over the surface of the liquid in the succeeding chamber. As shown in Fig. 1, an overflow channel is formed by walls m with an inclined distributing surface f. Fig. 4 shows an arrangement with funnel overflows c with inclined surrounds h. Such funnels may be vertically adjustable. The solid or liquid matter which separates as an upper layer in each chamber may be discharged continuously or intermittently through spouts which may be fixed or adjustable. Floats or covers e, Fig. 4, which restrict the space occupied by this upper layer and thus increase its thickness, may be provided. As shown in Fig. 7, such a cover is combined with the overflow surface of a funnel c. A sludge cage g, Fig. 4, may be provided in the first chamber.
Patent GB-1182732-A (GB)
Title: Magnetic Storage Element
IPC: G11C11/15
Filed: 1968-06-05
Abstract: 1,182,732. Magnetic storage arrangements. INTERNATIONAL BUSINESS MACHINES CORP. 5 June, 1968 [6 July, 1967], No. 26677/68. Heading H3B. [Also in Division H1] A magnetic storage device comprises a reading layer and a memory layer of ferromagnetic material separated by a layer of ferromagnetic material having a lower Curie temperature, the memory layer having the highest anisotropy information is stored by applying a magnetic field to the memory layer whereby each layer is magnetized in the same direction. Readout is effected by pulsing a laser on spot areas of the reading layer so that the Curie temperature of the central layer is exceeded and exchange coupling between the layers is destroyed. The magnetic vector in the reading layer rotates and induces signals in a sense winding, while the memory layer remains unaffected. The outer layers may be made of Permalloy, and the central layer of Permalloy + Cr, Mo, or Cu, or of Gd.
Patent GB-649644-A (GB)
Title: Improvements in or relating to the process of preparing crystalline salts of penicillin
IPC: C07D499/16
Filed: 1947-10-03
Abstract: Substantially pure, stable alkali metal salts of penicillin are manufactured by dissolving an impure alkali metal salt of penicillin in anhydrous methanol, or in another inert water-miscible organic solvent containing a small amount of water (e.g. ethanol containing 5-10 per cent of water, isopropanol containing 7-15 per cent of water, butanol saturated with water, or acetone containing 3-10 per cent of water), at a temperature below 0 DEG  C. (e.g. - 10 DEG  to - 40 DEG  C., preferably about - 30 DEG  C.), warming the resulting solution (e.g. to 20-30 DEG  C., preferably 25-30 DEG  C.) or allowing the solution to become warm, and recovering the alkali metal penicillin salt precipitate formed in the warm solvent. Precipitation may be facilitated by adding to the solution, before or after warming, anhydrous acetone, isopropanol, methyl isobutyl ketone, ether or benzene.  Examples illustrate the application of the process to sodium penicillin.  The Specification as open to inspection under Sect. 91 comprises the use of any cold polar solvent for preparing the solution, and any non-polar solvent for facilitating precipitation.  This subject-matter does not appear in the Specification as accepted.
Patent GB-726674-A (GB)
Title: Liquid fuel control means for aerial bodies of the ram-jet type
Inventor: WARNE EUGENE HAROLD
IPC: F02C7/22
Filed: 1952-10-27
Abstract: 726,674. Fluid-pressure servomotor-control systems. LUCAS (INDUSTRIES), Ltd., J. Oct. 9, 1953 [Oct. 27, 1952], No. 26887/52. Class 135. Means for controlling the supply of liquid fuel to aerial bodies of the ram-jet type comprises a primary and initially closed servooperated throttle a, and a delayed action and initially closed servo-operated secondary throttle 2 disposed in series with the primary throttle. As shown, the throttle a is formed with a servopiston g having an orifice i and is biased towards its closed position by a spring b. The space beneath the piston communicates with a duct j normally closed by a valve k carried by a pivoted lever m to which the spring is attached and the opposite end of which is loaded by an evacuated bellows n disposed in a chamber subject to dynamic air pressure or the pressure in the combustion chamber. The secondary throttle 2 is mounted in a cylinder having an outlet 5 to the combustion chamber and connected to a servo-piston 6 having an orifice 9. The throttle is biased towards its closed position by a spring 8 and the space beneath the piston communicates with a duct u normally closed by a valve t carried by a spring-loaded pivoted lever r, the opposite end of which is connected to a diaphragm q subject to the pressure differential across the throttle a. Initially the servo-cylinders h, 7 contain no fuel and upon starting the supply pump fuel flows through the pipe e to the cylinder 7 and presses down the piston g, thus compressing the air beneath the piston and opening the throttle a so that fuel may flow through the pipef to the secondary throttle. The fuel pressure on the piston 6 holds the throttle 2 closed until the flow through the orifice 9 builds up the pressure beneath the piston to the point at which it opens the throttle and permits flow through the pipe 5 to the combustion chamber. Meanwhile, the throttle a will move towards its closed position as the pressure builds up beneath the piston g owing to the flow through the orifice i, the final position of the throttle depending upon the air or gas pressure outside the bellows n. When a predetermined pressure differential exists across the throttle a, the valve t will open, thus permitting the throttle 2 'to take up the position at which it allows fuel to pass to the combustion chamber at the desired rate.
Patent GB-923112-A (GB)
Title: Improvements in or relating to oxide cathodes
IPC: H01J1/14
Filed: 1960-08-03
Abstract: 923,112. Cathode materials. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 3, 1960 [Aug. 6, 1959], No. 26903/60. Class 39 (1). In manufacture of an oxide cathode, a layer of alkaline-earth carbonates to which has been added a metallic powder, including manganese in the non-oxidized state, is provided on a carrier consisting substantially of nickel. For example, a layer 40 microns thick of bariumstrontium carbonate, having a grain-size of 20 microns, and containing 0.5 to 3% by weight of a powdered alloy of 70% manganese and 30% titanium having a grain-size of 10 microns, is sprayed on to a cathode tube of nickel containing 0.1% Si and 0.05% Mg.
Patent GB-277522-A (GB)
Title: Improvements in and relating to drilling and the like machines
IPC: B25H1/00
Filed: 1926-10-28
Abstract: 277,522. Thompson, B. W. Oct. 28, 1926. Drilling-machines. - In drilling and similar machines the rotating tool is fed into the work by the centrifugal displacement of masses pivotally attached to the tool-spindle and rotating with it. As applied to a hand driven drill, the drillhead 5 is vertically adjustable on a pillar 2 attached to the work-support 1 and carries a drill-spindle 7 rotatable and slidable in the head. The spindle is driven by a splined pinion 12 and a bevel gear 11 which may be rotated by a hand crank 13 or by power. A collar 15 is freely mounted on the spindle but is prevented from moving vertically and a second collar 17 is secured to the spindle. The latter has pivoted thereto bell-crank levers 18 which carry masses 19 at their free ends and which are further pivoted to links 20 pivoted at 16 to the collar 15. Rotation of the spindle causes the masses 19 to be raised and the spindle to be fed downwards, the feed pressure being adjustable by altering the position of the pivots 21 on the levers 18. A guard 22 may be provided.
Patent GB-746364-A (GB)
Title: Improvements in or relating to sheet-capstans for sailing ships
IPC: B66D1/74
Filed: 1954-09-17
Abstract: 746,364. Capstans. LEULIER, J. Sept. 17, 1954, No. 26966/54. Class 78 (5). Capstan 5 has an external ratchet 6 engaged by pawl 15 operated by handle 4 and retained by pawl 10. Handle 4 is rotatably carried by disc 3.
Patent GB-362013-A (GB)
Title: An improved resilient coupling
IPC: F16D3/56
Filed: 1930-09-10
Abstract: 362,013. Resilient couplings. ROYCE, SIR F. H., Nightingale Road, Derby. Sept. 10, 1930, No. 27043. [Class 80 (ii).] A resilient shaftcoupling which per. mits a slight misalignment comprises a number of packs d of radial leaf springs clamped at each end between axial lugs c<1>, c<2> on a flange c integral with an intermediate driven shaft b<2>, and driven through their centres by axial lugs g<4> on a ring g<1> bolted to a driving flange g by bolts g<2>. To fix the point of intersection of the axes, a spherical sleeve i<1> on the driving shaft i engages a complementary split shell f bolted to the driven flange c and having a flange f to retain the inner spring ends. The springs are located radially and axially on the flange c by a peripheral ring e and strips of metal e<2> which are bolted to the flange and also retain the ring e. The flange c has apertures h to accommodate the heads of the bolts g<2>. The intermediate shaft b<2> drives a pinion b<1> through interengaging splines which permit of the pinion and shaft being misaligned or out of parallel. The driving shaft i is driven by an engine crank shaft b and the final driven shaft b<5> may be an air-screw shaft. The crank shaft b is carried in plain bearings and the pinion b<1> in roller bearings, the coupling serving to accommodate unequal wear in the bearings.
Patent GB-710064-A (GB)
Title: Improvements in and relating to silicon enamel pigments
IPC: H01J5/08
Filed: 1952-10-28
Abstract: 710,064. Enamels. BRITISH THOMSONHOUSTON CO., Ltd. Oct. 28, 1952 [Nov. 1, 1951], No. 27073/52. Class 56 A black or dark grey coloured vitreous enamel especially for coating electric lamp bulbs consists of a colourless frit comprising silica boric oxide and zinc oxide and uncombined crystalline silicon as a pigment in an amount of from 5 to 20 per cent. by weight of the frit. Lead free or lead containing frits may be used, the former consisting for example, in percentages by weight, of SiO 2  20.11; Al 2 O 3  2.85; B 2 O 3  22.14; Fe 2 O 3  0.03; CaO 0.13; MgO 0.02; Na 2 O 5.27; K 2 O 4.28; As 2 O 3  3.44; ZnO 29.03; CaF 2  5.91; BaO 3.83 and TiO 2  2.96, whilst the lead containing frit may consist of SiO 2  21.73; Al 2 O 3  2.11; B 2 O 3  13.85; Fe 2 O 3  0.003; PbO 43.32; Na 2 O 0.61; K 2 O 2.52; ZnO 1.98; CaF  2  1.98; TiO  2  3.96; ZrO 2  5.97 and CdO 1.98. After smelting and quenching, the frit is milled with the silicon using alcohol as a vehicle and the lamp bulbs dipped, painted or sprayed with the enamel which is then glazed by heating at 700-720 C. for three minutes.
Patent GB-483801-A (GB)
Title: Improvements in manually-actuated driving mechanism for screw propelled boats
IPC: F16H7/04
Filed: 1937-10-06
Abstract: 483,801. Driving - gear for screw propellers. ALLEN, C. W. Oct. 6, 1937, No. 27084. [Class 114] Manually actuated driving-mechanism for screw propellers includes a number of rods reciprocatable longitudinally of the boat and coupled by cables with drums which form-part of the propelling mechanism. Rods 2, 2a are mounted longitudinally in the boat in brackets 4 and 5 secured to the thwarts. These rods carry handles 3, 3a and also depending therefrom are brackets supporting pulleys 34. The brackets are connected at 42 to a cable 40 passing around guide pulleys 41 so that as one rod is moved forwardly the other rod is moved rearwardly. Driving cables 30, 31 anchored at their ends 32, 33 to the supports 4 and 5 pass around the depending pulleys 34 and other pulleys on to helical grooves on drums 10, 11. These drums are mounted freely on a shaft 6 and between them is a member 12 keyed to that shaft. Each drum 10, 11 is provided adjacent to the disc 12 with ratchet gears 13 and pivotally mounted on each side of the disc 12 and adapted to engage such ratchet gears are pawls 14. Surrounding the disc 12 are a pair of cam members in a ring 16 which is shiftable laterally so as to bring either of the cams into the path of the arms 14 or to be free thereof to provide a no-drive position.
Patent GB-158364-A (GB)
Title: A new or improved tobacco pipe
IPC: A24F1/28
Filed: 1919-11-04
Abstract: 158,364. Davies, W. D. Nov. 4, 1919. Tobacco pipes.-Tobacco is inserted in a metal tube which resembles a cigarette and is provided with a spring clip b which engages with a square boss d at the socket end of a mouthpiece c. A segmental groove e is formed in the boss to receive the end of the tube a when the parts are packed together in a case.
Patent GB-430953-A (GB)
Title: Improvements in or relating to water-proof and grease-proof papers, and process of making the same
IPC: D21H19/82
Filed: 1934-09-21
Abstract: 430,953. Coated paper. INTERNATIONAL LATEX PROCESSES, Ltd., 10, Lefebvre Street, St. Peter's Port, Guernsey. Sept. 21, 1934, No. 27160. Convention date, Oct. 6, 1933. [Classes 96 and 140] [See also Group III] Paper is rendered resistant to water, oil, or grease by first treating it with an aqueous rubber dispersion such as latex, containing added protein such as casein, glue, gelatine, egg- or blood-albumen or haemoglobin, drying and then coating with a solution of the protective material in an organic solvent, for example lacquers containing nitro-cellulose or cellulose acetate, resins, phenol-aldehyde or alkyd resins or chlorinated rubber. A suitable latex composition comprises ammonia as stabilizer, glue, zinc oxide, sulphur, accelerator, phenylnaphthylamine as antioxidant, casein, caustic soda, and phenol as preservative. The intermediate rubber film may be vulcanized after application of the lacquer. Pre-formed articles such as cartons may be treated.
Patent GB-191800-A (GB)
Title: Improvements in and relating to methods of treatment for cotton, linen, jute and hemp to increase the absorptive capacity thereof
IPC: D06L1/18
Filed: 1921-10-13
Abstract: To remove pectic matter and to increase the absorptive capacity, cotton, linen, jute, or hemp is boiled in an alkaline solution to remove part of the impurities, washed in water, then boiled in sulphuric acid solution and finally washed.  100 kilograms of cotton piece goods such as heavy shirtings are boiled in 600 litres of an aqueous solution containing 2.4 kilograms of caustic soda and 1 kilogram of castile soap for 3 hours, then washed and boiled in 600 litres of water containing 2.94 kilograms of sulphuric acid (specific gravity 1.841), for 1 1/2 hours and finally washed.  Egyptian cotton duck. linen, hemp or jute is similarly treated but requires a stronger solution of caustic soda, or preferably longer boiling, say 4 hours in the castic soda solution and 2 hours in the acid solution. Cotton yarn in hank form could be similarly treated but requires only 2 hours in the caustic soda solution.  The caustic soda may be replaced by caustic potash, sodium carbonate, or potassium carbonate and the castile soap may be replaced by ordinary soap other than resin soap.  The Provisional Specification states that the sulphuric acid may be replaced by hydrochloric acid.
Patent GB-264933-A (GB)
Title: Improvements in and relating to nails, staples, spikes, hooks, brads, brobs or the like
IPC: F16B15/00
Filed: 1925-10-30
Abstract: 264,933. Humphris, F. Oct. 30, 1925. Nails; hooks; staples.-Sheet-metal blanks x Fig. 1 which are folded to form nails of the shape shown in Fig. 2 or of other curved or sinuous shape have parallel-sided shanks and sharp points a<4> the length of the shank exceeding twice the length of head and point combined, and the length of the point being less than the width of the blank. The head-part of the blank is widened. When folded as in Fig. 2 the edges a<2> of the V-point are given a helical form a<3>. The nail may have a W-shaped point, Fig. 9, and a bulbous head closed to a point b<5> and stiffened by indentations b<3>. A head may be formed by turning over the ends b<6>, Fig. 17. A hook-headed spike is shown in Fig. 13, the hook c having a channel form. A blank pointed at both ends is folded into S-form and bent to form a staple Specification 192,492 is referred to.
Patent GB-719758-A (GB)
Title: Road surfacing machine
IPC: E01C19/48
Filed: 1952-10-31
Abstract: 719,758. Road surfacing machines. PEDERSEN, M. M. Oct. 31, 1952 [Nov. 3, 1951], No. 27491/52. Class 107 A road surfacing machine comprises in combination, a container for surfacing material mounted on a vehicle, a transversely extending hopper extending over the entire operative width of the machine and a power-driven roller placed immediattely behind, and projecting partly into, the hopper so as to compress and smooth the material on the road. It is characterized in that the hopper and the roller are located at the front end of the vehicle and the vehicle and container being supported on supporting and driving components disposed behind said power driven roller. In Fig. 1 the machine consists of a chassis 1 carrying a container 3 with a hopper 4 in which is mounted a distributer 5. Roller 7 projects partially into the hopper being driven by the engine 2. The hopper is filled through a rear opening 10. Rollers 6 support and propel the machine and the edges of the rollers overlap to avoid forming track marks. Steerable front wheels 27 are provided. A modified supporting and driving device is shown in Fig. 4 where a set of foot plates. 12 (only one shown) are each pivoted on tappets 19, 20 by legs 21, 22 in turn pivoted to the upstanding portion 13 which carries stops 14, 15. An axle 11 carries a cam 18 so shaped as to engage at all times both rollers 23, 24 rotatable on legs 21, 22 respectively. A portion 16 of the circumference of axle 11 is reduced and the portions appertaining to each footplate of the set are staggered. When the full circumference of the axle is in the bottom position it bears on the part 13 which thus carries the weight of the machine. Other foot-plates being free from this full circumference are moved by the cam 18 in a forward direction and when fully forward the axle 11 bears on part 13 thus transferring the weight of the machine to this foot-plate. Further movement causes the axle 11 to roll over part 13 (under the action of the cam 18 on rollers 23, 24) and thus the machine is moved forward.
Patent GB-620605-A (GB)
Title: Improvements in and relating to fountain pens
IPC: B43K5/18
Filed: 1946-09-13
Abstract: 620,605. Fountain pens. ARMSTRONG, J. J. V. (Scripto, Inc.). Sept. 13, 1946, No. 27527. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 13, 1946.] [Class 146 (iii)] In a fountain pen having a barrel comprising a reservoir section 11 and a feed section 10, a feed-bar 16 having ink ducts 23 and supported in the section 10 is spaced. for a portion of its length from the inner surface of the section 10 to provide an annular excessink storage space 25 of capillary  dimensions into which the ducts 23 freely open. As shown, the inner end of the feed-bar is frusto-conical in shape to fit a correspondingly-shaped seating 15 in the section 10. At the nib end 20 of the seating, the bar is reduced and tapers to a shoulder 21 from which extends the nib-carrying part 27. An airtube 17 communicates with the space 25 by bores 18, 19. Air admission normally takes place through the tip 26 of the section 10 and below the part 27 of the bar, to the space 25, bores 18, 19 and tube 17, but if the space 25 is filled with ink, no air can enter and no ink-feed take place until the excess ink in the space is used. In a modification, the parts 10, 11 are integral and the tube 17, and bores 18, 19 omitted, air being admitted to the reservoir through a space above the ducts and situated in the frusto-conical part of the bar 11. Nibs.-The nib supports the feed-bar extension 27 in the tip 26 and, as shown, is cylindrical with bentin lugs 30, 31 engaging beneath the part 27. In a modified form, the downward extensions 28, 29 Fig. 2 are omitted, and the lugs extend to a point adjacent to the end of the section 10, and below the horizontal diameter of the bore.