baber/WOPTO huggingface dataset:
Patent GB-1405454-A (GB)
Title: Infants playball
IPC: A63B37/00
Filed: 1972-01-26
Abstract: 1405454 Toy balls teething devices HILARY PAGE SENSIBLE TOYS LTD 26 Jan 1973 [26 Jan 1972] 3701/72 Headings A5R and A6D A childrens playball 10 has a plurality of spaced apart projections 11. The ball body and the projections are hollow and, as shown, the projections are of waisted cylindrical form with dished tops 11 b and are equally spaced over the. ball surface in two rows lying in planes at right angles. The ball may be an integral moulding of soft elastomeric or synthetic plastics material and the projections may be bitten or sucked by a child.
Patent GB-320305-A (GB)
Title: Improved valvular device for controlling the flow of fluid therethrough
IPC: F16K3/18
Filed: 1929-02-05
Abstract: 320,305. Dempster, Ltd., R. & J., and Andrews, C. Feb. 5, 1929. Wedging or jamming.- In double-disc sliding valves wherein the discs h, i are rotated oppositely on closing for forcing the discs into close contact with their seatings by means of lugs m, n and o. r on the discs and valve body, respectively, end helical surfaces s, t, the valve spindle u is provided with a block v or nut member coacting with lugs w projecting within the discs for the purpose of .rotating the discs in the opposite direction on opening to ease the discs from their seatings. Springs may be disposed below the nut member v and between lugs on the valve discs for allowing the valve parts to yield under excessive external pressure, and to provide for a rotary scraping or cleaning action between the discs and their seatings.
Patent GB-1066601-A (GB)
Title: Portable hedge trimming machine
Inventor: ROSS JAMES EDWARD
IPC: A01G3/053
Filed: 1965-01-28
Abstract: 1,066,601. Hedge-cutters. TARPEN ENGINEERING CO. Ltd. March 17, 1966 [Jan... 28, 1965], No. 3801/65. Heading A1E. A portable hedge trimming machine comprises a stub shaft 22 adapted to be releasably connected to a rotary drive, and a bevel gear drive 24, 36 from shaft 22 to an intermediate shaft 37 carrying a pinion 39 which engages a gear wheel 42 carrying a crank pin 45 in sliding engagement with a slot 47 in a yoke 48 attached to a reciprocable cutter blade 50, a guide member 51 being attached to blade 50 and sliding in a guide slot 53 extending in a fixed blade 54 and at right angles to slot 47 whereby the reciprocable blade is driven by the crank pin to reciprocate in the direction of the guide slot 53. The shaft 22 may be formed in two parts coupledby a clutch controlled by a. lever pivotally mounted on the stub shaft housing 71. A handle may be secured to casing 11 between wing nut 58 and washer 57. The machine may be used with a flexible drive from a remote power source or coupled directly to the output end of an electric motor.
Patent GB-768243-A (GB)
Title: Kinematograph projectors
IPC: G03B35/00
Filed: 1954-02-09
Abstract: 768,243. Kinematography. PERFECTONE SOC. ANON. Feb. 9, 1954 [Feb. 13, 1953], No. 3807/54. Class 97(1) A film, Fig. 2, which carries pairs of images 1, 1a &c. of half the normal height, is placed at 2, Fig. 3, for projection of each pair by an objective 3, the beam from which is divided by a system 4 to pass through objectives 5, 6 which, with the reflectors 8 project superposed images, 1, 1a &c. of half the normal to a screen 7. The dividing system 4 is formed, of mirrors, prisms or lenses.
Patent GB-941132-A (GB)
Title: A steam superheating nuclear reactor
IPC: G21C1/08
Filed: 1960-02-03
Abstract: 941,132. Reactors. LICENTIA PATENTVERWALTUNGS-G.m.b.H. Feb. 3,1960 [Feb. 26, 1959], No. 3856/60. Heading G6C. A nuclear reactor for superheating a supply of steam from an external source comprises a pressure vessel partially filled with water, a core situated below the water comprising a number of fuel rod assemblies extending between top and bottom end plates, and concentric steam inlet and outlet to the core arrange so that steam from within the pressure vessel and above the water level enters an outer group of fuel assemblies, passes down through the core then enters the lower ends of an inner group of fuel assemblies and passes upwards through the core to emerge in a superheated condition. The external steam source is preferably a boiling water reactor. The fuel assemblies, Fig. 2, comprise seven canned fuel elements 20 in an inner tube 21 and an outer tube; the space 22 between the tubes is sealed at one end to provide stagnant steam insulation between the two tubes, the superheating steam flow passing through the inner tube, whilst the outer tube is in contact with a circulated moderator in an inner vessel 2 (Fig. 1). If the water surrounding the chamber 2 boils, the resultant steam merges with the main source of steam entering inlet 7.
Patent GB-372834-A (GB)
Title: Improvements in or relating to radio receivers particularly for use on trains or other moving structures
IPC: H04H20/62
Filed: 1931-02-06
Abstract: 372,834. Wireless signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.- (Assignees of Shumard, C. C. ; 400, Stanwick Avenue, Moorestown, New Jersey, U.S.A.) Feb. 6, 1931, No. 3871. Convention date, Feb. 6, 1930. [Class 40 (v).] A system for redistributing broadcast programmes, either as high-frequency or lowfrequency currents, suitable for use on railway trains or other moving vehicles, is characterized by the use of two or more aerials located at different points on the moving train &c. so as to ensure a constant level of signal strength irrespective of fluctuations in " pick-up " due to any directional, shielding, or similar effects caused by the movement of the train &c. As shown, two aerials 10, 11 are mounted on the first and last car of the train. Both aerials are coupled through amplifiers 12, 121 to a high-frequency transmission line comprising series inductances L, L<1> and shunt capacities 9. The distributing-line is coupled to as many extension units 4 as desired through radiofrequency amplifiers 40 which are fed from the same sources of plate and filament supply as the amplifiers 12, 12<1>. The amplifiers 40 are coupled, in turn, to individual wireless receivers, which may energize either a single loud-speaker or a series of headphones in each car. The system is also applicable to hotels &c. Specification 347,431 is referred to.
Patent GB-270800-A (GB)
Title: Improvements in or relating to circuit arrangements for use with high frequency currents
IPC: H03F1/16
Filed: 1926-02-11
Abstract: 270,800. Green, E. Feb. 11, 1926. Thermionic amplifiers.- One or more of the leads connected to a, thermionic valve has its inherent inductance neutralized, at the working frequency, by means of a series condendenser of appropriate capacity, in order that the two ends of the lead may be at the same " A.C. potential." Thus in the leads shown in Fig. 1 are inserted condensers C1 - - C4 adapted to neutralize the natural inductances of the respective leads. The condensers may be shunted by chokes L1 - - L4 which pass direct current : or comparatively small inductances may be used, in which case each combination, comprising a condenser and an inductance in shunt, is so dimensioned that its resultant reactance neutralizes the inductance of the lead. In order to prevent self-oscillation a resistance may be included in series with the inductance or with the combination. The invention may be applied to the two forms of anti-coupling bridge described in Specification 241,289, a condenser shunted by a choke being inserted in each grid lead in order to prevent disturbance of the bridge balance at high frequencies. In the modification of one of these bridges shown in Fig. 3, the condenser K is inserted in the grid lead, and a passage for direct current is provided by the choke M in series with a damping resistance such as a lamp S and with a battery B which is shunted by a condenser Z<1>. The arrangement is identical with that shown in Fig. 1 of Specification 241,289. except that the parts B, S. M, Z', E have been added. Instead of the inductance of the leads being exactly neutralized, the net reactance may be dimensioned so as to give a controlled degree of reaction.
Patent GB-765746-A (GB)
Title: Improvements in or relating to articles composed of glass fibres or filaments bondedby synthetic resins
Inventor: DAVIES DRURY NORMAN
IPC: C08J7/04
Filed: 1954-02-11
Abstract: Laminated and moulded articles made from glass fibres and filaments bonded together with a polymerized adhesive composition which comprised in its unpolymerized form are unsaturated polyester mixed with a monomeric styrene compound are coated with a solution of a polymerized styrene compound in a volatile solvent, which is then allowed to evaporate, leaving a coating of polymerized styrene compound which reduces the permeability of the articles to fluids. The term "styrene compound" includes styrene and polymerizable derivatives thereof, e.g. vinyl toluenes, alpha-methylstyrene, ethyl substituted styrenes and mono- and dichlor-substituted styrenes.  The polymerized styrene compound may be a copolymer of such compounds, or of a styrene compound with a small proportion of a compound such as butadiene, isoprene, chloroprene or acrylonitrile, and it may be dissolved in, e.g. carbon tetrachloride, tetrachloroethylene, ethylene dichloride, benzene, ether, toluene, ethyl acetate, amyl acetate or acetone. The unsaturated polyesters comprise esters, the molecules of which each contain at least two ester groups and two ethylenically unsaturated portions through which interpolymerization can take place, and are prepared by the inter-estification of dibasic or polybasic acids with alcohols; either the acidic or the alcoholic portion may possess ethylenic unsaturation.  They may be prepared, e.g. by the esterification of saturated dibasic acids such as phthalic, adipic, succinic or sebacic acids with unsaturated alcohols such as allyl or substituted allyl alcohols, or by esterifying saturated polyhydric alcohols, such as ethylene glycol, diethylene glycol, triethylene glycol, trimethylene glycol, alpha-propylene glycol, 1:4 butylene glycol, 1:3 butylene glycol and glycerol, with alpha-beta unsaturated acids such as maleic, fumaric itaconic and citraconic acids, a part of which may be replaced with an equivalent amount of a saturated acid, such as succinic, adipic, sebacic, phthalic, azelaic, tetrahydrophthalic or endomethylene tetrahydrophthalic acids. Mixtures of acids and alcohols can be employed.
Patent GB-657218-A (GB)
Title: Improvements in or relating to an accessory system
IPC: B60S1/10
Filed: 1949-02-14
Abstract: 657,218. Rotary pumps. TRICO PRODUCTS CORPORATION. Feb. 14, 1949, No. 4023. Convention date, Feb. 12, 1948. [Class 110(ii)] [Also in Group XXXVII] A negative-pressure generating unit comprises an electric motor 16 driving a coaxial rotary pump 2, and a pump byepass . 8, 4 which is operative when the suction in a pipe 3 is sufficient to actuate a member 10, a valve 13 then being open and the pump 2 stopped. A switch 21 is controlled by the suction acting in a cylinder 32 on a piston 31. Should the suction from a car manifold 1, for example, fall off, pressure rises in the cylinder 32 and the piston 31 is forced out by a spring 33. This causes a pivoted locking member 28 to be forced into full-line position, Fig. 4, to free a pivoted armature 23. If a control switch 12 is now closed, the magnet will lift the armature and close the pump motor circuit by means of contacts 20. The suction is then sufficient to actuate the accessory and, acting through a port 34, cause the piston 31 to move to the right and allow the locking member 28 to swing to the dotted position and hold the armature 23 by means of its slot 36 which engages shoulders on the armature. The pump inlet 8 is connected by a duct 9 to an accessory, such as a window operator in which a fluid motor 10 has the opposite ends of its chamber opened to the suction line 9 by means of electromagnetic valves 11 controlled. by the switch 12.
Patent GB-556319-A (GB)
Title: Improvements relating to radio receivers
IPC: H04L15/26
Filed: 1942-03-27
Abstract: 556,319. Wireless signalling. STANDARD TELEPHONES & CABLES, Ltd., and HOLLAND, J. D. March 27, 1942, No. 4064. [Class 40 (v)] A testing arrangement for a radio alarm system comprises an aerial, a radio receiver adapted to be tuned to the alarm wavelength, means for switching the aerial from the receiver to a variable inductance to form therewith a circuit resonant at the alarm wavelength, and means to excite the resonant circuit to cause it to generate waves adapted to be detected by the receiver. An aerial A is connected by a switch S in the ON position to a receiver RR tuned to the alarm wavelength. A test circuit comprises a variable inductance L1 which, with the inherent capacity C of the aerial, forms a circuit resonant at the alarm wavelength. A fixed inductance L2 is coupled to L1 and is arranged in series with a resistance R and the make and break contacts of a buzzer B. Closure of a key K energizes a relay RY to connect the aerial to the inductance Ll and also energizes the buzzer B so as to excite the circuit L1C through L2 and radiate a signal from the aerial at the alarm wavelength. Reception of this signal by the receiver RR indicates that the aerial is operative and is connected by switch S to the receiver which is tuned to the alarm wavelength. A low pass filter F prevents radiation of buzzer modulation from the leads.
Patent GB-667906-A (GB)
Title: Improvements in or connected with dolls and the like
IPC: A63H3/46
Filed: 1950-02-17
Abstract: 667,906. Dolls &c. SMITH, T. E. April 18, 1950 [Feb. 17, 1950], No. 4104/50. Class 132 (iii). A body, limb or head of a doll or the like is moulded in plastic in two parts, a hook for attachment being moulded integrally with one or both of the parts, so that when the parts are connected together, the hook is central of the join between the parts. In Fig. 1, the leg members 1, 2 and two half thickness hooks 3, 3a are cemented together. A modification, Figs. 3, 4 (not shown), has a hook 3 of the total required thickness which extends for half its thickness beyond the edge of the leg portion 1, the hook 3 being central of the join between the leg halves..
Patent GB-565948-A (GB)
Title: Improvements in mixing apparatus for finely divided substances
IPC: B01F7/00
Filed: 1944-03-13
Abstract: 565,948. Mixing-machines. PASCAL ENGINEERING CO., Ltd., and STRINGER, G. B. March 13, 1944, No. 4188/43. [Class 86] In mixing apparatus for finely-divided substances, the beater-carrying arms e are carried at their inner ends by bosses f on the shaft b and secured therein by grub-screws g. The arms are curved in opposite directions to carry helically curved mixing blades; the construction being such that by rotating the parts to bring blades to be removed uppermost and slacking off the grub-screws, the blades with their arms can be removed in turn through the open top of the mixing chamber.
Patent GB-278941-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H23/14
Filed: 1927-02-15
Abstract: 278,941. Ham, R. W. L. A. Feb. 15, 1927. Handles for tumbler switches. The pivot pin 8 of the operating member is loosely mounted in the screwed boss 1 and is held in place by its ends abutting against lugs 7 secured to or forming part of a plate or plates 6 mounted in a removable manner between the ears 2 of the bridge and the insulating base 4. The figure shows a construction having two plates 6 the lugs 7 of which project through holes 5 in the ears 2. In a modification the holes 5 are dispensed with and the lugs 7 are formed with broad holes which slide over the ends of the ears 2. In other modifications the lugs 7 are formed on one annular plate 6.
Patent GB-341300-A (GB)
Title: Machine for winding wire from one spool on another one
IPC: B65H59/04
Filed: 1930-02-07
Abstract: 341,300. Hydraulic servomotors. NAAMLOOZE VENNOOTSCHAP GLOEILAMPENFABRIEKEN, 13a, Emmasingel, Eindhoven, Holland. Feb. 7, 1930. No. 4231. Convention date, Feb. 20, 1929. [Class 69 (ii).] A servomotor for controlling the speed-changing means of the supply bobbin of a wire-winding machine comprises a cylinder 22, a piston 23, and a central valve 24, oil being supplied under pressure by way of orifices 25, 26 to the annular space 27 between the valve and piston so that, as the valve is moved to the right or left oil flows through the port 28 or the port 37 and thus moves the piston to the right or left.
Patent GB-123841-A (GB)
Title: Improvements in the Manufacture of Chrome Yellows.
Inventor: MORRIS EDGAR FORD
IPC: C09C1/20
Filed: 1918-03-12
Abstract: 123,841. Morris, E. F. March 12, 1918. Pigments.-Lead chromate pigments are prepared from basic lead acetate solution which has been purified by chalk or other agent that will absorb lead oxide. Examples are given of the production of lemon chrome from purified basic lead acetate, acetic acid, sodium bichromate, sulphuric acid, alum, and sodium sulphate; and middle chrome from purified basic lead acetate, acetic acid, and sodium bichromate.
Patent GB-1405568-A (GB)
Title: Cargo-hook with sealed control mechanism
IPC: B66C1/34
Filed: 1974-01-30
Abstract: 1405568 Hooks BREEZE CORPS Inc 30 Jan 1974 [5 March 1973] 04362/74 Heading E2A A cargo hook assembly comprises a sealed hollow housing 11 formed of opposed flanged side walls, a splined shaft 13 in the housing rotatably journalled in the side walls and extending outwardly therefrom, a load beam 12 secured to the extended portions of the splined shaft and turnable therewith a link 18 having a bifurcated portion at one end and secured at its opposite end to the splined shaft within the housing, a link 22 within the housing loosely coupled by a pivot pin 32 to one end of a link 25, the link 22 being pivoted to the bifurcated portion and the link 25 being pivotally secured at its other end to the housing; a retaining cam 29 pivoted within the housing a cam face 30 on the cam for engagement with the pin 32 at an over centre position of the pin and a driving member to turn the cam to move the pivot pin to a second over centre position whereby the load beam will be released as the splined shaft rotates within the housing. The load beam 12 is forked and the limbs have a splined bore for engaging end portions of the splined shaft 13. The link 18 has a stop to limit over centre travel of the linkage in the locking position. The cam driving member is a rotary solenoid 33 acting on a bell crank lever 34 secured to the pin 32. The bell crank lever is connected to an external handle 40. A spring 42 connected to the link 18 restores the beam 12 to its original position retaining the load. A sear 54 is pivoted to contact the cam 29, a microswitch 53 is operatively disposed against the sear and the solenoid 33 is actuated by the sear closing the microswitch when the beam touches the ground and relieves the load on the beam 12. When the cargo hook is applied to a helicopter the pilot can retain the microswitch open to prevent automatic release of the load. A microswitch 36 in contact with the cam 29 closes when the beam is moved and thereby indicates the condition of the beam to the operator. The beam carries a damper assembly 46 comprising a bolt 49 contacting a shoulder 50 of the beam and extended by washers the head 51 of the bolt contacts an anvil 52 on the housing when the beam swings open. Cam 29 can be turned to releasing position by external release knob 41 connected to the shaft 32.
Patent GB-324253-A (GB)
Title: Improvements relating to surrounds for fire places
IPC: F24B1/198
Filed: 1929-02-09
Abstract: 324,253. Turner, A. L. Feb. 9, 1929. Adapting self-contained stoves to open fireplaces.-A sheet-metal or tiled surround a for adapting a gas fire to an open fireplace is supported against the back of the fire by a frame b at its rear secured by one or more clamping bars d attached to the back of the fire. In the form shown the bar d is slightly curved to give it a spring action, is provided with cranked ends which bear on the frame members, and is attached by means of a stud f screwed into the back of the fire.
Patent GB-129590-A (GB)
Title: Improvements in and relating to Door Locks.
IPC: E05B63/04
Filed: 1919-02-22
Abstract: 129,590. Vaughan, H. & T., and Satterthwaite, G. Feb. 22, 1919. Reversible locks.-A double-acting tumbler r is pivoted on a pin p on the bolt and has a stump v co-operating with the stud l guiding the bolt. A spring w on the pin p and tensioned by lugs q on the bolt serves to retain the tumbler in the midposition, whence it can be operated by a key inserted into either of two keyholes d, according to whether the lock is mounted on a right or left handed door. Latch bolt guided by lock bolt.-The latch bolt k is mounted between the forked ends of the lock bolt and is guided by these and by the stud l.
Patent GB-401698-A (GB)
Title: Improvements in or relating to carburettors
IPC: F02M1/00
Filed: 1932-02-16
Abstract: 401,698. Spray carburetters. BOSCH AKT.-GES., R., 4, Militarstrasse, Stuttgart, Germany. Feb. 16, 1932, No. 4529. Convention date, Feb. 18, 1931. [Class 7 (iii).] To prevent fuel from being drawn into the induction passage from an accelerating pump during normal running, it is delivered by such pump past an atmospheric opening. The pump piston i is actuated from the throttle valve e through linkage f, g, h, and delivers fuel through a pipe m. The outlet q of this pipe terminates short of an opening o in the wall of the induction passage. In a modification, Fig. 2, the pipe m is integral with the wall, and has an opening p<1> past which the fuel is delivered by a constriction q<1>. Specification 374,509 is referred to. The Specification as open to inspection under Sect. 91 describes also the delivery of the fuel from the pipe m through a small chamber open to the atmosphere. This subject-matter does not appear in the Specification as accepted.
Patent GB-513581-A (GB)
Title: Improvements relating to electric furnaces for melting or fining glass
IPC: C03B5/027
Filed: 1938-02-14
Abstract: 513,581. Electrode furnaces. BOREL, E. V., and SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.- GOBAIN, CHAUNY, ET CIREY. Feb. 14, 1938, No. 4536. [Class 39 (iii)] In a discontinuous method of glass manufacture current is supplied by electrodes 2 near an imperforate bottom and side walls of a vessel containing glass material at a low level. Material is added while heating it until a desired high level is reached; and when the fining is completed the glass is withdrawn to a level high enough to cover completely the electrodes, when further material to be treated is added. The electrodes 2 may be in contact with the walls 11 of the container or they may be separated therefrom to cause a circulation of the molten glass around them. Each electrode has a surface in contact with the glass which is smaller than the cross-section of the glass material between the electrodes. When three-phase supply is used, the container is of hexagonal crosssection, and three electrodes are mounted near alternate wall Specification 500,803 is referred to.
Patent GB-939041-A (GB)
Title: First-aid stretcher or carrying sheet
IPC: A61G1/01
Filed: 1961-02-08
Abstract: 939,041. Stretchers. S. L. STONE. Jan. 18, 1962 [Feb. 8, 1961], No. 4628/61. Class 108(1). A holding stretcher a carrying sheet comprises a laver patient supporting portion 1 with carrying handles 2 and a foot pocket 6 and a separate cover 5 detachably connectable along its length with the laver portion. Pockets 7 on the underside of the laver portion may receive boards 8. The cover is secured by sliding fasteners and may have a hot water bottle pocket. The sheet may be made of unbleached linen treated with synthetic rubber and when folded is carried in a bag.