baber/WOPTO huggingface dataset:
Patent GB-1412080-A (GB)
Title: Electric circuits
IPC: H03M1/00
Filed: 1973-05-03
Abstract: 1412080 Datum chasing circuit FERRANTI Ltd 16 April 1974 [3 May 1973] 21124/73 Heading H3H An electric circuit for storing the value a varying signal has at a certain time and then deriving a signal equal to the difference between the present value and the stored value, comprises a datum chasing loop consisting of a comparator 10, an analogue-to-digital converter 12 and a digital-to-analogue converter 15. When datum chasing is required, switch 16 is closed so that at the end of the next A-D conversion cycle, clock pulses from generator 13 are discontinued whereby register 14 retains a parallel digital representation of the then value of the input signal. Switch 18 is closed to obtain the desired difference signal from the output of comparator 17. A selector switch (21), Fig. 2 (not shown), may be provided to enable the circuit to be used for a plurality of input signals. The invention may be applied to aircraft control or process control.
Patent GB-239359-A (GB)
Title: Improvements in stop valves
IPC: F16K1/44
Filed: 1924-09-08
Abstract: 239,359. Cockburns, Ltd., and Mac- Nicoll, D. Sept. 8, 1924. Closure members, lift.-A. lift valve member 1 for a stop valve is adapted to telescope over the valve seat 5 and is provided with a valve-like sealing surface at 3 adapted to engage a corresponding seating formed in the closed end of the valve seat. Leakage discharge passages 7 are formed in the valve member communicating with the space 6 between the closed ends of the valve member and seat.
Patent GB-694444-A (GB)
Title: Dispersions of vinyl chloride resins in plasticizers containing polyglycol methacrylates
IPC: C08K5/103
Filed: 1950-08-25
Abstract: A plastisol comprises a fluid dispersion of solid particles of an emulsion-polymerized vinyl chloride polymer in a dispersant which is present in an amount between 40 to 60 per cent by weight of the polymer and dispersant, and which consists of a mixture of 10 to 80 per cent by weight of a methacrylate diester of a liquid polyethylene glycol, e.g. diethylene glycol dimethacrylate, and 90 to 20 per cent by weight of an ester plasticizer for the polymer which does not polymerize on heating and which is present in an amount greater than 20 per cent by weight of the resin.  The plastisol may be heat-cured at 160 DEG  C. in the presence of a peroxide catalyst to give a product having a hardness below 100 on the Shore Durometer " A " scale and a flexural modulus of elasticity below 15,000 lbs. per square inch.  The polymer may be a copolymer of vinyl chloride with vinylidene chloride vinyl acetate, vinyl propionate, methyl acrylate, butyl acrylate, methyl or butyl methacrylate, acrylonitrile, or dibutyl maleate. Specified ester plasticizers are di (2-ethylhexyl) phthalate, dicapryl phthalate, tri-(2-ethylhexyl) phosphate, butyl phthalyl, butyl glycollate, dibutyl or dioctyl sebacate, di (2-ethylhexyl) succinate, tricresyl phosphate and the diester of diethanolamine with 2-ethylhexanoic acid.  The plastisols may include stabilizers, e.g. dibutyl tin dilaurate, pigments, fillers and flame-proofing ingredients.
Patent GB-160116-A (GB)
Title: Improvements in splash guards for motor road vehicles and the like
IPC: B62D25/18
Filed: 1920-07-14
Abstract: 160,116. Henningsen, A. July 14, 1920. Lateral-splash guards.-A lateral-splash guard for motor road vehicles &c. comprises canvas, mackintosh, celluloid, silk, or like material 6 stretched across a closed hoop 4, which is rigidly fastened in position on the outside of the wheel and is made of resilient material, such as strip steel, so that should it strike an obstacle 9 on the road it will be deformed until the obstacle is cleared and will then assume its' original shape. The canvas &c. may be attached to the hoop by rings, eyelets, or resilient members 7 passing through holes in the material and holes in the hoop or in an inwardly directed rib 8 thereon. As shown, the splash guard is rigidly attached at 3 to the peripheral guard 2.
Patent GB-405895-A (GB)
Title: Carving fork with knife sharpener attachment
IPC: B24D15/08
Filed: 1933-07-28
Abstract: 405,895. V-slot sharpeners. BOREHAM, C. H., 19, Farringdon Avenue, London. July 28, 1933, No. 21262. [Class 60.] A carving fork is provided with a pair of sharpening-rollers A, A<1> mounted to turn on transverse axes on the guard B and arranged with their plane perpendicular to that of the guard. Specification 200,752, [Class 60, Grinding or abrading &c.], is referred to.
Patent GB-531440-A (GB)
Title: Lubricating device for sewing machines
IPC: D05B71/00
Filed: 1939-07-22
Abstract: 531,440. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). July 22, 1939, No. 21341. [Class 112] The rotary loop-taker race is lubricated by oil passing along a central bore 67 in the looptaker shaft 17 from an oil cavity 59. Oil caught from the splash feed in the main casing chamber 46 is led by a trough 57 to the cavity and surplus oil returns by a weir 58. Below the level of the weir, so that it is always submerged, there is a pervious washer 63 through which the oil for the race has to pass and the amount is regulated by variably compressing the washer by means of a screw 65. Oil escaping from the loop-taker shaft bearing is caught in a chamber 70 and returned by a bore 73. The feed-bar 33 has a sliding- rocking pivot 37 in the chamber wall 20' and carries two yokes 40, 43 which embrace the feedlift and feed eccentrics.
Patent GB-1385784-A (GB)
Title: X-ray fluorescence analysis
IPC: G01N23/22
Filed: 1972-05-08
Abstract: 1385784 Mixing apparatus APPLIED RESEARCH LABORATORIES LTD 8 May 1972 [14 May 1971] 21350/72 Heading B1C [Also in Divisions G1 and G2] In a liquid cell for X-ray fluorescence analysis comprising a receptacle 27 for a liquid sample, a window opening 29 and an arrangement 45 for imparting rotary motion to the liquid, means, e.g. a baffle arrangement 83, are provided to inhibit creation of a vortex adjacent opening 29. In this way a substantially flat upper surface is presented to irradiating X-rays. The baffle 83 may comprise two connected inverted U-shaped members, Fig. 8 (not shown). As shown the rotor 45 is a bar magnet which is rotated by a motor-driven magnet arrangement 73-77 located below the receptacle base. Alternatively a rotating vane (112) may be coupled direct to the motor 47, Fig. 9 (not shown). Excess liquid drains away through passage 41. For Figure see next column
Patent GB-1472755-A (GB)
Title: Enhancing resolution in analogue-to-digital conversion by adding statistically controlled noise to the analogue input signal
IPC: H03M1/00
Filed: 1974-05-14
Abstract: 1472755 Analogue-to-digital conversion WESTON INSTRUMENTS Inc 14 May 1974 [14 May 1973] 21387/74 Heading H3H A time varying analogue signal is converted to a series of digital samples by generating a noise signal having selected amplitude probability and power spectrum and which is substantially independent of the analogue signal, combining the noise signal with the analogue signal, and sampling the analogue signal at a rate F(s) which is greater than twice the maximum frequency of interest in the analogue signal and digitizing the samples. The digital samples contains separable noise components. Preferably the digital samples are averaged over one averaging interval. Noise signal parameters in terms of the parameters of the analogue and digital signals are given. The digital signal is preferably binary and the noise signal is preferably has a peak to peak value equal to a quantum of the digital signal, over the whole of its bandwidth. As shown, clock source 28 provides signals of frequency F(s)=4F(m) where F(m) is the maximum frequency of the analogue signal to sampling analogue-to-digital converter 24 and to dividers 30, 32 (each dividing by two). The divider signals are controlled in amplitude and combined to give the lowest curve in Fig. 4 which with the noise signal from 34 covers the band Œ2<SP>-(N+1)</SP> which is a quantum for a N-bit binary signal. This signal is combined with the analogue signal at 22 and the resulting signal is sampled at frequency F(s) and converted to N- bit digital at 24. Processor 26 may be used to average the resulting digital signals over averaging intervals.
Patent GB-587372-A (GB)
Title: Improvements in liquid seals for centrifugal pumps
IPC: F04D7/06
Filed: 1944-11-01
Abstract: 587,372. Centrifugal seals. ABBEY, A. (Jonkopings Mekaniska Werstads Aktiebolag.). Nov. 1, 1944, No. 21398. [Class 122 (v)] In a centrifugal pump with a vertical axis, a liquid seal is arranged above and on the same side of a runner 3 as an inlet conduit 5 to a pump chamber 6; the pump shaft 1 carries, in addition to the runner 3, a sealing wheel 12 situated in an annular horizontal pocket in a separate chamber 19 and provided with blades 10 and 17 submerged in the sealing liquid, at least one branch of the seal being subjected to the centrifugal force created by the blades 16 and 17 for compensating over-pressure or vacuum on the suction side of the pump. The sealing wheel 12 consists of a disc 14 projecting from a nave 13 and a cylindrical flange 15. In modifications, there may be two sealing wheels mounted axially on the pump shaft, each in its own chamber, or the sealing wheel may be cam-shaped. The liquid in the seal may be mercury.
Patent GB-973913-A (GB)
Title: Derivatives of 8-azaoestrane and 8-aza-d-homooestrane
Inventor: CLARKSON RICHARD
IPC: C07D455/03
Filed: 1962-06-04
Abstract: The invention comprises compound of general formula <FORM:0973913/C1/1> wherein R1 and R2 may be the same or different alkyl radicals, R3 stands for hydrogen or an alkoxy radical, R4 stands for hydrogen, alkyl or alkoxy radical, R5, and R6, which may be the same or different stand for hydrogen or alkyl radical and n is 1 or 2; and acid addition salts thereof; and the preparation thereof by catalytic hydrogenation of isoquinoline derivatives of general formula <FORM:0973913/C1/2> wherein R1, R2, R3, R4, R5, R6 and n have the above significance, optionally in an inert diluent or solvent such as ethyl acetate at a temperature between 15 and 60 DEG C. and under elevated pressure.  Specifications 973,911 and 973,912 are referred to.
Patent GB-1034154-A (GB)
Title: Finely-divided plastics
IPC: C08J3/16
Filed: 1965-05-20
Abstract: A process for finely-dividing normally solid, synthetic, organic, polymeric thermoplastic resins other than olefin homopolymers comprises subjecting to vigorous agitation at elevated temperature and pressure a mixture of water, molten resin and a minor proportion of a water-soluble ethylene oxide/propylene oxide block copolymer to produce a fine dispersion and thereafter cooling the dispersion below the melting temperature of the resin. Specified resins are polymers of vinyl chloride, acetate, alcohol and acetal; copolymers of olefins such as ethylene with vinyl esters, vinyl alcohol, allyl esters, allyl alcohol, acrylic and methacrylic esters, acroleinl allyl acetone, allyl ethers and allyl benzene; polymers of acrylic and metherylic esters and nitriles; polystyrene; fluorocarbon polymers; polyesters and polyamides, e.g. polyhexamethylene adipamide, polyhexamethylene sebacamide and polycaprolactam. Examples describe the dispersion of (I) an ethylene/vinyl acetate copolymer, (II) an ethylene/ethyl acrylate copolymer, (III) an ethylene/methyl acrylate copolymer, (IV) an ethylene/allyl alcohol copolymer, (V) polyvinyl chloride and (VI and VII) nylon.  The resins may be used for coating, e.g. in dispersion form for brush, roller, dip or spray coating and in powder form for static and fluidized bed coating and dusting.
Patent GB-230730-A (GB)
Title: Working method for the production of fur goods with bronzed hair
IPC: A41H41/00
Filed: 1924-09-12
Abstract: 230,730. Herzog, A. R., and Herzog, A. [Firm of]. Sept. 12, 1924. Furs.-A method for bronzing the hair tips of furs consists in painting the fur, which has been previously carried and dyed, with a scouring agent, spraying on bronze powder mixed with varnish or an agglutinant, combing thoroughly and drying. Finally, a thin coating of varnish is applied.
Patent GB-294552-A (GB)
Title: Improved manufacture of ceramic bodies
Filed: 1928-07-25
Abstract: 294,552. I. G., Farbenindustrie Akt.- Ges. July 25, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Clay, porcelain, and like plastic compositions. -Ceramic bodies of high thermal conductivity for lining vessels are made with a high proportion of silicon or silicon allov such as ferro-silicon. In examples (a) 95 parts of finely ground silicon are mixed with 5 parts of milk of lime and burnt (b) a mixture of 50 parts of ferrous silicon. 40 parts of a clayey mass, 5 parts of felspar and 5 parts of cryolite, is burnt in known manner. By a proper choice of the binding and fluxing materials the product is obtained acid-proof, and by burning above 1200‹ C. it is rendered alkaliproof.
Patent GB-398994-A (GB)
Title: Improvements in electric incandescent lamps
IPC: H01K1/26
Filed: 1932-08-02
Abstract: 398,994. Electric incandescent lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, DUDDING, B. P., c/o General Electric Co., Wembley, Middlesex, and WOOLGAR, A. E., Osram- G.E.C. Lamp Works, Brook Green, Hammersmith, London. Aug. 2, 1932, No. 21648. [Class 39 (ii).] To prevent the portions of the glass filament supports nearest to the filament of an electric lamp, such as a stud 9 carrying wire supports S, from becoming unduly heated they are protected by screens, such as 10, made of a refractory metal, such as molybdenum.
Patent GB-416172-A (GB)
Title: Improvements in or relating to sewing machine cabinets
IPC: D05B75/06
Filed: 1933-08-02
Abstract: 416,172. Tables and cabinets. JONES' SEWING MACHINE CO., Ltd., and HALL, J., Guide Bridge, near Manchester. Aug. 2, 1933, No. 21676. [Classes 52 (i) and 52 (iii).] A sewing-machine cabinet comprises a fixed unbroken uninterrupted table top 18 on legs 19, and towards the rear, a compartment with an end door 25. A drawer 27 may be fitted above the knee space, and the compartment may have a roller 16 or a sliding bottom 23.
Patent GB-773750-A (GB)
Title: Improvements in or relating to a clockwork movement for mechanical time fuzes incorporating means for holding and releasing the striker
IPC: G04B17/10
Filed: 1955-07-27
Abstract: 773,750. Projectile fuzes. MEFINA, SOC. ANON. July 27, 1955 [Sept. 4, 1954], No. 21685/55. Class 9 (1). Clockwork projectile fuze comprises a spring-stressed striker 1 held by a bolt 3 which is controlled by a bell 4 fixed to a shaft 11 connected to a driving spring 12. The shaft 11 carries a toothed annulus 17 which drives a regulator comprising gears 18, 19, 20, the gear 20 being in driving connection with a balance 22 suspended on the element 23. Enclosing the mechanism is a housing 13, 24 rotatable in the fuze casing 32, the part 24 being closed by a plate 25 which carries means for locking the balance as described in Specification 688,883. The fuze is set by rotating the housing 13, 24 relative to the casing 32, the setting being maintained by the friction between the housing and the casing and by a ring 50 screwed on to the threaded end of the casing 32. During storage a catch or pawl 38 engages a notch 40 in the bell to prevent its rotation, the pawl being held by a stop 44 secured to the base cover 33. At the same time, the striker bolt 3 is aligned with an opening 5 in the housing 13 and is locked by an element 36 secured to the housing. On setting the fuze, the bolt 3 is held by the housing 13 while the pawl 38 is moved away from the stop 44 but remains in the notch 40 until the projectile is fired. A mass 45 then sets back due to inertia and rocks the pawl out of engagement with the bell 4, the mass being held in the rear position by a spring 47 engaging with the casing 32. The bell 4 rotates until the opening 5 is aligned with the bolt, which then moves outwards under centrifugal force. The striker is thus freed and driven forward by its spring 2 ignites the primer (not shown).
Patent GB-276351-A (GB)
Title: High frequency induction furnaces
IPC: H05B6/02
Filed: 1927-08-19
Abstract: 276,351. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts Ges.). Aug. 19, 1926, [Convention date]. Supplying consuming devices.- The middle point 7 of the coil 1 of a high frequency furnace is connected to earth and condensers 9, 10 are connected in parallel with each half of the coil.
Patent GB-203335-A (GB)
Title: Improvements in or relating to furnace chimneys
IPC: F23L17/16
Filed: 1923-08-30
Abstract: 203,335. Dallemagne, V. Aug. 31, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Blast apparatus; baffles.-In a blast-pipe apparatus for locomotives, &c., an adjustable baffle located around the blast pipe 2 is used in combination with an obturating member 3 in the chimney for the purpose of arresting sparks and regulating the draught. In the form shown, the baffle is in the form of a sheet metal truncated cone having a radial gap 9" adjustable in width by an adjustable edge members 10', 11, with a second adjustable baffle 12 above the gap. The baffle may take other forms, e.g. a helix with means for varying its pitch. The obturator 3 may be an inverted cone as shown, or a sphere, or, in some cases, a simple disc. The drum 5 within which the baffle is mounted, may be made in segments for ease of erection, and formed at the top with an inner flange to engage a corresponding flange on the coned part of the petticoat.
Patent GB-1309435-A (GB)
Title: Optical components
IPC: G02B7/02
Filed: 1970-05-06
Abstract: 1309435 Optical components R RODENSTOCK [trading as OPTISCHE WERKE G RODENSTOCK] 6 May 1970 [10 May 1969] 21916/70 Heading G2J The two lenses 1, 2 of an optical component in a mounting 3 are spaced apart by three identical steel balls 12 positioned around the inner peripheries of the lenses. The balls, which are producible in large numbers with close tolerances, are maintained in position by a cage ring 13 which may be resilient or rigid as dictated by the shape of the airspace between the lenses. If the tolerance of the airspace is distinctly greater than the diameter tolerance of the balls, then a plurality of balls forming a continuous ring may be employed. Axial lens pressure in the component can be adjusted by means of three grub screws 19, Fig. 5 which are screw-threaded through a ring 5 to bear against a non-rotatable ring 18 separated from lens 2 by a rubber ring 4. A soft rubber ring 16, Fig.6 possessing large surface friction (or alternatively a plastics plug) prevents rotation of lens 1, and a silicone rubber sealing ring 20 co-operates with ring 16 to seal off the airspace in order to prevent corrosion of the balls 12.
Patent GB-1186787-A (GB)
Title: Packing of Sheets into a Container
IPC: B65D85/07
Filed: 1967-05-11
Abstract: 1,186,787. Tissue and like packages. KIMBERLY-CLARK CORP. 11 May, 1967 [9 June, 1966], No. 22035/67. Heading B8C. A package contains a stack of sheets, e.g. tissues 11, that is folded into an inverted U- shape and the ends of at least the bottom sheets 25 turned out to give a substantially rectangular bundle that fits closely into a receptacle or wrapper 29. One method of folding the sheets comprises forming the U by pushing the initially flat stack transversely along a ramp 16, Fig. 4, that rises in height from zero as side walls 14, 15 converge towards it to shape the sides 36 of the bundle. The wrapper or receptacle may be made of cardboard or plastics or alternatively of thin paper and put in a metal, wood or plastics dispenser for use. The top of the wrapper or receptacle may have a dispensing aperture 35 or be wholly removable. The sheets may be interleaved.
Patent GB-655671-A (GB)
Title: Internal shielding arrangements for electron discharge devices
IPC: H01J19/40
Filed: 1947-08-08
Abstract: 655,671. Thermionic valves. SYLVANIA ELECTRIC PRODUCTS, Inc. Aug. 8, 1947, No. 22080. Convention date, July 13, 1946. [Class 39 (i)] An electron discharge device has a two-part anode and a two-part shield member of such a curvature and disposition that they form together a generally cylindrical arrangement surrounding the cathode and grids, with anode and shield sections alternating. The connection between the shield sections serves to screen the connection between the anode sections from the other electrodes. Exemplified is a pentode, with conventional grids 9, 10, 11. The anodes 14, 15 are of curved section, each with a longitudinal stiffening rib, the rib extending at each end of the anode into tabs 16, 17 and 18, 19. These tabs locate the anodes in slotted top and bottom mica spacers 12, 13. Top tabs 18, 19 are connected by a wire loop 28, to which the anode lead 8 is attached. Getter pellets 20, 21 are welded in the rib channels. Two curved electrostatic shields 22, 23 alternating with the anode sections, extend between the micas, being welded to support rods 24, 25, 26, 27, rod 25 being connected to lead 4 passing through the envelope. A semi-cylindrical top arch 29 connects the shield sections 22, 23 and serves as a shield between the anode loop 28 and the other electrodes. Inter-electrode shielding below the bottom mica is effected by two angle-pieces 30, 31 welded to rods 24, 26 respectively. The filament 35 is attached at its lower end to a support plate 37, which by being welded to lead 4 also forms part of the whole interconnected uni-potential shielding system. Fig. 10 shows the underside of bottom mica 13 in an arrangement modified to bring the anode lead 8a out through the foot, being shielded from the other leads by shield 31a, an extended form of 31. Additional anode/grid shields 41, 42 are welded to side rods 24, 27 and 25, 26 respectively.
Patent GB-848108-A (GB)
Title: Improvements relating to masts, derrick booms and the like
Inventor: WINDER ARTHUR SMALLWOOD
IPC: B66C13/18
Filed: 1957-07-12
Abstract: 848,108. Luffing and slewing jibs. WHARTON ENGINEERS (ELSTREE) Ltd. July 4, 1958 [July 12, 1957], No. 22120/57. Class 78 (4). [Also in Group XXXVI] A boom 3, pivoted about an axis 10 on a block 6 which is pivoted about a horizontal axis 8, is positioned by hydraulic rams 15, 20, 21. As shown, the boom is mounted on a railway truck 1 and is provided with a pulley 4 for stringing overhead cables 2. The supply of hydraulic fluid to the ram 15 is controlled by a piston valve 40, Fig. 5 (not shown) and the supply to the rams 20, 21 is controlled by a piston valve 48, Fig. 5 (not shown), the valves 40, 48 being actuated in such a way by a lever 34 that the boom moves in the direction in which the lever is moved. The Provisional Specification states that the hydraulic rams could be replaced by screw jacks, thrust rods extended and retracted by ropes or chains, or by any other extensible and retractable members.