baber/WOPTO huggingface dataset:
Patent GB-491042-A (GB)
Title: Improvements in and relating to means for prolonging the exhibition of a single image in cinematographic projection apparatus
IPC: G03B21/50
Filed: 1937-05-28
Abstract: 491,042. Kinematograph projectors. OFFICE GENERAL DE LA CINEMATOGRAPHIE FRANCAISE. May 28, 1937, No. 14894. Convention date, March 23. [Class 97 (i)] A delay-action device controlling the operation of means for prolonging the projection of a single image is actuated from the main shaft of the apparatus and is adjustable so that stoppage of the film feed occurs after the projection of a predetermined number of images ; the device may be applied to control the means described in Specification 473,098. A shaft 1 which controls the feed-stopping means, and may correspond to the shaft 19 of the apparatus described in Specification 473,098, carries a stop cam 2 normally held by a rod 3a which is withdrawn when an electromagnet 3 is energized, e.g. by the impact of a bullet on a plate behind a target. The cam 2 is held by a hook 25 when the rod 3a is first withdrawn, and the withdrawal rocks a lever 4 to free a notched disc 5 and also to free a pawl 6, Figs. 2 and 4, which then completes a driving connection between the main shaft of the apparatus and the disc. The pawl is pivoted on a wheel 11 and is also connected to it by a spring 7, the wheel 11 being, loose on a shaft carrying a gear 9 continuously driven by a pinion 10 on the main shaft and secured to a ratchet wheel 8. The pawl, when released, is pulled by the spring 7 into engagement with the ratchet wheel 8, and the wheel 11 and a pinion 12, secured to it, are then driven. The pinion 12 then drives a gear-13 secured to the disc 5 and to a timing shaft 15. The shaft 24 to which the hook 25 is secured carries a pawl engaging the edge of a disc 19 having a notch therein. The disc 19 rotates with the disc 5, and, when the notch comes into position for the pawl to move into it, the hook 25 releases the stop cam 2, and the film feed ceases. The relative positions of the discs 5 and 19 may be adjusted to vary the number of images which are fed before the film feed ceases, the disc 19 being secured to a knob 20 rotatable on the timing shaft 15, and being held by a spring 22 so that a pin 18 projecting from a wheel 17 secured to the shaft 15 engages between selected teeth on a toothed wheel 21 secured to the disc 19. The gearing is such that the wheel 7 rotates once in seven seconds and wheel 21 carries seventy teeth.
Patent GB-692251-A (GB)
Title: Compound fertilisers and the production thereof
IPC: C05B11/06
Filed: 1948-06-02
Abstract: In making mixed fertilizers by acid extraction of raw phosphate containing fluorine, treating the acid solution with a neutralizing agent and concentrating the resulting liquor to a melt, the pH value of the acid solution during the neutralizing step and subsequent concentration is maintained below 2.5.  The process may be effected by continuously running the acid solution and neutralizing agent into a reactor wherein the pH is maintained, e.g. between 1.5 and 2.5, by adjusting the ratio of the rate of flow of the reactants.  Where nitric acid is used for dissolving the raw phosphate and ammonia as the neutralizing agent, the resulting fertilizer is composed of dicalcium phosphate, ammonium nitrate, mono-ammonium phosphate and calcium fluoride.  The melt may be finally granulated, dried, cooled and sieved.  Prior to granulation, the melt may be further neutralized to produce a less acid product.  The molar ratio CaO/P2O5 of the product may be adjusted by removal of calcium nitrate by crystallization or by the addition of phosphoric acid before neutralization.  Specifications 626,662, [Group III], and 692,252 are referred to.
Patent GB-700155-A (GB)
Title: Phonographic pick-up
IPC: H04R11/08
Filed: 1952-06-13
Abstract: 700,155. Gramophone pick-ups. FONOFILM INDUSTRI AKTIESELSKAB. June 13,1952 [June 15, 1951], No. 14902/52. Class 40 (4). In a moving-coil pick-up, a ferromagnetic armature 7, Fig. 6, is pivotally mounted on a bracket 20, Fig. 4, and carries a coil 14 and a resilient stylus arm 13, the armature and the bracket constituting a replaceable movement assembly which is readily detached from the pick-up body by a sliding movement. As shown in Figs. 2 and 3, magnetic pole pieces 3, 4 are moulded in a plastic pick-up body 5 which incorporates guide grooves 22, 21 for end pieces 8, 9 and the stem of the bracket respectively. The grooves determine the correct location of the armature in the magnetic air gap and enable the movement assembly to be replaced without risk of coil damage by the pole pieces. The coil is arranged on the armature as shown in Fig. 6 and is secured by an adhesive such as shellac. Pivotal mounting of the armature is effected by pressing the armature ends into keyhole-shaped openings 11 in the bracket and pieces 8 and 9, Fig. 5, with rubber strips 23 interposed. The rubber strips may alternatively be replaced by moulded rubber sleeves.
Patent GB-850845-A (GB)
Title: Magnetic memory device
IPC: G11C11/06
Filed: 1958-05-09
Abstract: 850,845. Circuits employing bi-stable magnetic elements. STANDARD TELEPHONES & CABLES Ltd. May 9, 1958 [May 10, 1957], No. 14904/58. Class 40 (9). [Also in Group XIX] In a magnetic matrix memory system comprising saturable magnetic elements arranged in rows and columns, driving signals are applied to the columns sequentially from different output terminals of signal delay means. For each plane of cores of the memory shown in Fig. 1, the row wire selected by switch 14b receives the read/ write waveform 41 from generator 14a, and the column wires receive sequentially from point 25a and taps 25b, 25c, &c., on delay line 13, through amplifiers such as 17, the read portion 12a, of a single read/write pulse 12 from generator 11. If a selected core, such as 42, is switched by the coincidence of read pulses 12a and 41, a pulse is induced in read-out wire 43; this pulse is fed back through delay 24 to gates 21-23 so as to coincide with the write portion 12b of pulse 12 which is inverted, e.g. at 20, and the output of each gate is fed to a further portion of the associated amplifier whereby coincident write pulses are applied to restore the selected core. Each gate may comprise diodes 26, 27, Fig. 2, and the amplifier portions may comprise triodes 17a, 1 7b feeding current in opposite .senses to sections of the primary of a transformer 32 whose secondary is coupled to the associated column wire. The memory may comprise four planes A, B, C, D for storing the "1," " 2," " 4 " and " 8 " bits of binary coded decimal words. In a modification (Fig. 4, not shown), the amplifiers 17 and gates 21 are omitted, and the column wires are serially connected by separate delay lines.
Patent GB-782079-A (GB)
Title: Improvements in or relating to tufter hook
IPC: D05C15/22
Filed: 1955-05-24
Abstract: 782,079. Tufting machines. AMERICAN SAFETY RAZOR CORPORATION. May 24, 1955 [Jan. 5, 1955], No. 14924/55. Class 112 The tuft-receiving hook in a tufting machine comprises a forwardly extending finger portion 4, a nose 12 extending downwardly from the front end of portion 4, and a neck portion 6 extending downwardly from the rear end of portion 4, the hook being formed of two side walls, one of which has a rearward extension 44 provided with a stop 46 for the outer end of a loop-cutting blade 30 which passes forwardly into a channel extending to a position adjacent the nose 12, whereby the blade may be flexed into and out of its position in the hook. The lower end of portion 6 is received in one of a series of slots 66 provided in a bar 60, the front of the bar between said slots being formed with a series of tapered slots 68 adapted to be opened by means of screws 74 to contract slots 66 for gripping the hooks.
Patent GB-131759-A (GB)
Title: Improvements in and relating to Toy Building Elements.
Inventor: HARROP HEDLEY JAMES
IPC: A63H33/04
Filed: 1918-09-14
Abstract: 131,759. Harrop, H. J. Sept. 14, 1918. Building-blocks and the like.-The corners of the building are formed by posts a grooved to receive the walls b, which are of sheet material. The walls and posts are held together by sheet material or wire clips d, Figs. 3 and 4. In a modification, the clips d, Fig. 9, are shaped so as to hold the walls b together and the posts a are dispensed with.
Patent GB-994943-A (GB)
Title: Improvements in or relating to fine measuring instruments
IPC: G01B3/22
Filed: 1963-04-17
Abstract: 994, 943. Measuring displacement electrically. J. D. MOLLER OPTISCHE WERKE G.m.b.H. April 17, 1963 [April 27, 1962], No. 15146/63. Heading G1N. In an optical instrument for measuring a length by displacing a hairline 18 (Fig. 1) from one location to another, the extent of the displacement is measured by the unbalance of a bridge having in one branch a potentiometer 10 whose slider 23 is linked to the moving past 11 of the optical apparatus. The movement may be linear as shown, or angular (Fig. 4, not shown) using a circular potentiometer.
Patent GB-958883-A (GB)
Title: Improvements in the construction of aircraft fuselages
IPC: B64C1/06
Filed: 1963-04-17
Abstract: 958,883. Aircraft fuselages. SOC. ANON. DES ATELIERS D'AVIATION LOUIS BREGUET. April 17, 1963 [June 14, 1962], No. 15161/63. Heading B7W. An aircraft fuselage comprises an upper wall 1 of substantially circular cross-section which subtends an angle greater than 180 degrees, a floor 3 extending from one edge of the upper wall to the other, and a lower wall 2 having a radius of curvature R 2  at least equal to the radius of curvature R of the upper wall, the adjacent edges of these three elements being connected to one another by longitudinal members 8, each having a web 8a and flexible flanges 8c and 8d. A further flange 8e provides an attachment for an outer wall 13 of a storage compartment 14 having a framework 15 secured to structure 4 connecting wall 2 with the floor. The panels may be of honeycomb construction, individual sections being connected together by straps 5.
Patent GB-1086541-A (GB)
Title: Improvements in or relating to gripping devices
IPC: A01D46/26
Filed: 1966-04-05
Abstract: 1,086,541. Reachers. R. W. BRANDT Jun. April 5, 1966 [April 9, 1965], No. 15178/66. Heading B4W. In a gripping device having a plurality of jaws, at least one of the jaws is provided with a deformable pad comprising a deformable container substantially filled with a substance displaceable therein. The deformable container D of each pad is secured to its respective jaw by a flexible support E of canvas the ends of which are secured to the upper end 5 of the jaw by a metal strip 6 and cap screws 7. The container D comprises a flexible cylinder (8) with moulded rubber end walls 9. Each end wall 9 is provided with a centrally located aperture for receiving a metal tube. The container D holds coarse sand (F), sawdust, granular plastics material, granular rubber or other granular material which is introduced and removed through one or other of the tubes (10). Each tube (10) may be closed by a valve. Compressed air or other fluid may be admitted into the containers through the valve controlled tubes (10) to loosen the compacted granular material. The container may be made of fabric or metal wire mesh.
Patent GB-558931-A (GB)
Title: Improved means for producing low frequency pulsating current from an alternating current supply
IPC: H02M5/00
Filed: 1942-10-29
Abstract: 558,931. Frequency changing. ARNOLD, J. C. (Tyler Co., W. S.). Oct. 29, 1942, No. 15180. [Class 38 (ii)] [Also in Group XL] Means for energizing a load L such as the operating coil of a vibrating screen with impulses of lower frequency than that of the A.C. supply A, B comprises a grid-controlled valve PT in series with the load the grid being energized so as to maintain the valve blocked for intervals including at least one cycle of positive voltage on the anode by potentials derived from a timing unit comprising a condenser C discharging through a resistance R4. The timing unit also comprises a valve CT the anode circuit of which is energized from the A.C. supply A, B through a transformer T5. Thus initially the valves P, T and CT conduct simultaneously, the latter operating to charge the condenser C through a transformer T2 and rectifier RT, whereupon both valves become blocked by the condenser voltage applied to their grids. They remain blocked for an interval determined by the magnitude of resistance R4 through which the condenser discharges and which may be varied to determine the frequency of the impulses applied to the load L. One such timing unit may control a number of valves PT controlling different load circuits.
Patent GB-269009-A (GB)
Title: Improvements in clips for use in stentering and other machines
IPC: D06C3/04
Filed: 1926-06-17
Abstract: 269,009. Clay, G. June 17, 1926. Tentering. - The face plate a of the lower jaw of a tentering machine clip has its fixing rivets d made integral with it.
Patent GB-341375-A (GB)
Title: Improvements in or relating to staples for locking bars and the like
IPC: E05C19/08
Filed: 1930-05-17
Abstract: 341,375. Hasp fastenings. TIBBLES, H. J., Brodsworth, Blenheim Crescent, Leigh-on-Sea, and RELY-A-BELL BURGLAR & FIRE ALARM CO., Ltd., 49A, Wilson Street, Finsbury Square, London. May 17, 1930, No. 15255. [Class 44.] The staple d which receives a padlock g to secure a slotted hinged hasp b of ordinary form, has a depending portion h which covers the space between the shackle f and lock casing, to prevent insertion of a tool to force the lock open. The portion h may also prevent the padlock from being swung away from the door &c. by engaging with the front of the upper portion of the padlock case. The portion h may form an enlargement of the staple to an extent limited by the size of the slot c through which the staple has to pass.
Patent GB-623555-A (GB)
Title: Improvements in an apparatus for spreading material in a mould
IPC: B30B15/30
Filed: 1946-05-21
Abstract: 623,555. Moulding powdered metal &c. BURGESS, A. F. (Wellman Co., S. K.). May 21, 1946, No. 15364. [Class 87 (ii)] Powdered material such as a mixture of iron, lead and graphite is spread in an annular mould 16 by placing material in the mould, rotating the mould by means of a turntable 14, and at the same time slowly lifting a spreader blade 37 out of the mould. To counteract the tendency of the material to move outwards due to centrifugal force, the front face 38a of the blade is so arranged that the part of the blade nearest the outer side of the mould is in advance of the rest of the face. To allow the blade to be so arranged it is rotatably mounted on a bar 28, and is locked in position thereon by a nut 35. The side faces 37a, 37b of the blade are arranged at an angle to the front face to allow the blade to fit properly within the mould. To cause a small degree of turbulence of the material, the front face is inclined forwardly at an angle n. To prevent churning of the material after the blade has passed over it, the rear part 42 of the bottom face is arranged horizontally and the forward part 41 is slightly inclined upwardly at an angle b. The blade' is raised and lowered through a rack and pinion. The apparatus for rotating the mould may have mechanisms which automatically elevate the blade. The blade may be made of non-magnetic material such as cemented carbides or Hadfield manganese steel.
Patent GB-341829-A (GB)
Title: Device for removing cases from boiler-feed water and the like liquids
IPC: B01D19/00
Filed: 1930-05-19
Abstract: <PICT:0341829/III/1> Apparatus for removing gases from liquids, in which the liquid passes from a heating chamber to a deaerating chamber which is at a lower pressure, is provided with a siphon between the chambers to ensure the necessary pressure difference being maintained.  The Figure shows an apparatus suitable for treating boiler feedwater, comprising a heating chamber 1 communicating through the siphon 7 with the chamber 2.  The latter is exhausted by the ejector 17 through a condenser 14.  Condensate returns to the chamber 2 by the passage 15.  Air is removed from the heating chamber through a restricted aperture 19.  The deaerated water is withdrawn at 11.
Patent GB-780103-A (GB)
Title: Braking device for printing presses
Inventor: STENSTROM STEN RICHARD
IPC: B41F3/80
Filed: 1955-05-27
Abstract: 780,103. Printing machines. GRAFISKA MASKIN AKTIEBOLAGET. May 27, 1955, No. 15398/55. Class 100(2) In a braking device for a printing press having a reciprocating type bed and comprising' a brake cylinder or cylinders 7 operative at the end of the type bed stroke, the compression chamber of the cylinder or cylinders is connected by piping 9 to a counter-cylirider 10 containing a spring- loaded piston 11 movable by the pressure developed in the brake cylinder or cylinders 7 during their operation. By'this arrangement, the variation of, the braking force during the travel of the bed can be made to correspond more closely with the variation of the inertia force of the bed. The press described has, at each end, two cylinders 7 connected to a single cylinder 10.
Patent GB-563629-A (GB)
Title: Sulphanilamido pyridazine
IPC: C07D237/20
Filed: 1942-11-02
Abstract: Para - substituted benzene sulphonamido pyridazines of the formula <FORM:0563629/IV/1> where Y is a nitro or acylamino radical, X is hydrogen, an alkyl radical or an alkali metal, and Pa is a pyridazine or an alkyl or phenyl substituted pyridazine, are prepared by reacting an amino pyridazine with a p-Y-benzenesulphonyl halide, and if desired forming the free p-amino compound by hydrolysis or reduction.  The condensation is preferably carried out in the presence of a base, such as sodium hydroxide, or in the presence of a basic solvent, such as triethylamine or pyridine.  If desired, the sodium formaldehyde sulphoxylate amino compound and the mono aldose amino compound may be prepared by reaction with an alkali metal sulphoxylate or a mono-aldose sugar, such as glycose or galactose. In examples: (1) 3-Aminopyridazine is reacted with acetylsulphanilyl chloride in pyridine solution to form 3 - acetylsulphanilamido - pyridazine.  (2) The product of example 1 is hydrolysed with aqueous sodium hydroxide to the free p-amino compound.  (3) 3-Aminopyridazine is reacted with p-nitrobenzenesulphonyl chloride in pyridine solution to give 3-p-nitrobenzenesulphonamidopyridazine which is reduced in example (4) to the free amino compound by iron dust and acetic acid, and treated with sodium formaldehyde sulphoxylate in example (5) to form the sodium formaldehyde sulphoxylate derivative.  (6) As in example 1 but using 3-amino-6-methyl pyridazine instead of the unsubstituted pyridazine to obtain the corresponding product which is hydrolysed in example (7) with aqueous sodium hydroxide.  (8) As in example 1, using 3 - amino - 6 - phenylpyridazine, to obtain the corresponding product which is hydrolysed in example (9) with aqueous sodium hydroxide.  (10) As in example 1 but using 3-amino-4 : 5 : 6-trimethyl pyridazine to obtain the corresponding substituted pyridazine product which is hydrolysed in example (11) with sodium hydroxide to form the free amino compound.
Patent GB-169143-A (GB)
Title: Improvements in radio telegraphic transmitting stations
IPC: H01Q5/48
Filed: 1921-06-03
Abstract: 169,143. Bethenod, J. Sept. 14, 1920, [Convention date]. Transmitting systems and apparatus; aerials. - In transmitting stations employing a plurality of high - frequency generators, a horizontal aerial is divided into a plurality of sections 3, 4, each supplied by one of the generators 1, 2, and to prevent mutual induction between the sections, transformers 8, 9, 10 are provided connecting the sections of the aerial in pairs. There exists a frequency such that the mutual induction is nil and a mathematical formula for calculating this frequency is given. Frequencies which are different, but in the neighbourhood of this frequency, may be used for multiplex transmission with practical independance, but by connecting two sections through a resistance all mutual action between them may be eliminated. Switches are provided to connect all or any two sections of the aerial for stronger transmission of a particular frequency.
Patent GB-407220-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/16
Filed: 1933-05-29
Abstract: 407,220. Safety razors. LILLIBRIDGE, R. D., Greenwich, Connecticut, U.S.A. May 29, 1933, No. 15467. Convention date, April 15. [Class 30.] A safety razor comprises a flexible sheet 3 of parafined cardboard, fibreboard, &c. having a fold at one end to receive a blade and guard assembly, the remainder of the sheet being foldable over the blade assembly with its free end fitting under the fold, as shown in Fig. 3, to form a casing, and having spaced longitudinal scores or creases 18<1>, Fig. 8, so as to assume a three- or more-sided beam-like section which resists lateral bending when folded along these creases to form a handle as shown in Figs. 1 and 4. A flexible or rigid blade 1 is retained on a guardplate 2 by stamped clips 6 and a stamped lug 14 which engages a blade-aperture to prevent removal of the blade. The blade-receiving upper fold of the sheet has apertures 16, Fig. 8, for attachment to the guard-plate 2 by bentover tongues 8, 12 on the plate. The folding- creases 18<1> may, as shown, extend, parallel or divergent, betweeen transverse slots 20, 21<1>, the lower 21<1> of which may be omitted. In the latter case, a central longitudinal crease is added. Divergent upper creases 22 provide for the correct inclination of the blade on the handle, and lower creases 23 are also provided. The sheet may carry advertisements.
Patent GB-1000163-A (GB)
Title: Fluid flow control valves
Inventor: BUTLER GORDON ALFRED
IPC: F16K1/16
Filed: 1963-04-19
Abstract: 1,000,163. Valves. FLEXAIRE Ltd. March 5, 1964 [April 19, 1963], No. 15485/63. Heading F2V. [Also in Division F4] A valve comprises a pivoted flap 1 of which one side (the upper) controls a fluid flow and the other is arranged to be impinged upon by a further fluid flow for moving the flap. The flap has a section resembling that of a pair of aerofoils of which the trailing edges are united, and the concave faces lie on opposite sides of the flap. As applied to an air heater with a fan 8, when the fan is not running, the flap is horizontal and air passes by natural convection from an aperture 6 and through a heat exchanger 7 and, when the fan is running, the air blown by the fan through the heat exchanger also tilts the flap to close the aperture 6. The flap may be biased to take up either the closed or the open position when the fan is not running.
Patent GB-977531-A (GB)
Title: Epicyclic power transmission mechanisms
IPC: F16H61/02
Filed: 1960-05-03
Abstract: 977,531. Variable - speed epicyclic gear. A. C. WICKMAN. April 24, 1961 [May 3, 1960], No. 15500/60. Heading F2D. In a three-element epicyclic over/under drive gear the sun pinion 2 is engageable by axially-movable brake and clutch elements 10, 11, respectively, operated by one or more springs 17, located between the elements, and an overriding hydraulic actuator 24 for controlling the engagement and release of the second clutch element 16 carrying the annulus 6. In the overdrive unit shown spring 17 normally holds clutch elements 11, 16 in engagement to lock the gear for direct drive, but upon operation of piston 24 a lever 20 bearing against a fulcrum 21 on brake element 10 first disengages the clutch elements 11, 16 to release annulus 6, and then engages the brake elements 12, 13 to hold sun-wheel 2 fixed, so that the output shaft 8 is driven through the gear at increased speed. In a modification, Fig. 2 (not shown), the hydraulic actuator consists of differential pistons, the larger of which acts directly on brake element 10 and the smaller on clutch element 11. Underdrive arrangements with shafts 4, 8 reversed, Figs. 3 and 4 (not shown), are also described.