baber/WOPTO huggingface dataset:
Patent GB-663087-A (GB)
Title: Mechanism for converting reciprocating motion into continuous rotary motion
IPC: F16H21/22
Filed: 1948-08-11
Abstract: 663,087. Linkwork. SOC. DE CONSTRUCTIONS MECANO-THERMIQUES, C.O.M.E.T. Aug. 11, 1948 [Sept. 2; 1947], No. 21224/48. Class 80 (iii) A mechanism for converting oscillatory or reciprocating motion of varying amplitude into continuous rotary motion comprises linkwork in which a lever 5 is pivotally connected by pin 6 to springs 17, 19 mounted on fixed trunnions 18, 20. The driving member (not shown) is connected by a pin 3 to a link 21 pivoted at 4 to the lever 5. The driven shaft 16 carries a crank arm 26 and a connecting rod 14. The connecting rod is hinged to a block 13 pivoted to the lever 5 and sliding between two fixed guides 11, 12. The springs 17, 19 each comprise two springs arranged so that movement of the pin 6 between the planes 7, 8 is controlled by weak springs, movement beyond these planes being resisted by strong springs (not shown). Where there are two oppositely-moving driving members and the linkwork is duplicated, as shown in broken lines, the fixed stops and springs 17, 19 are replaced by springs 22, 23, 22a, 23a in a floating member 32, and fixed guides 33 are provided for the lever 5. The shaft 16 is connected to a shaft 16a, Fig. 7, by a differential bevel gear in which the planetary gears 27a may be moved by a control arm 28a to vary the phase of the rotary motion. The mechanism is stated to be suitable for stabilising and controlling machines of the free piston type. Specifications 599,552 and 649,852, [both in Group XXVI], are referred to.
Patent GB-229357-A (GB)
Title: Improvements in unidirectional driving devices
IPC: F16D41/08
Filed: 1923-08-22
Abstract: 229,357. Constantinesco, G. Aug. 22, 1923. Variable-speed and reversing ratchet gearing is adapted to give a range of speeds in either direction, the speed variations being effected automatically, in accordance with the load, by elastic yielding within the ratchet device. A driving oscillator c, Figs. 6 and 7, a slider or gripper b, and a driven rotor a, are as described in Specification 205,293. Balls, rollers, or other elastic bodies 12 are arranged between the oscillator c and the gripper b, and others 13 between the oscillator c and the rotor a, so that at the commencement of the driving stroke, a non- effective movement through a substantial angle dependent upon the load takes place between the oscillator and the gripper, owing to the elastic give of the said balls, rollers &c. 12, 13, while at the end of the driving stroke, the balls &c. regain their shapes, and so return the oscillator and gripper to their original relative positions. The result is a drive which may be varied down to nought, when the load is large. Reversal is effected immediately on any speed by reversing the tension in a controlling spring or springs 8, 9, Fig. 7, as described in Specification 217,684. The oscillator c is of eccentric or equivalent form, so that it carries the gripper into engagement, then advances the lost fraction of the stroke, then the effective fraction, and then returns idly. The gripping surface of the gripper is shown castellated, to squeeze out oil. A complete reversible variable-speed gear is shown in Figs. 8, 9 and 11. A central driving-shaft 21, by means of eccentrics and rods 26, 27, oscillates a pair of countershafts 24, 25. These by means of rods 43, 44 actuate a pair of the oscillators 30 above described. The rotors 33 acting alternately drive a central load shaft 37. The grippers 48 of the variable ratchets are controlled by springs 45 operated by a handle 47, which is thrown over to reverse the drive. In a form shown in Fig. 3, an inclined plate 5 replaces the eccentric. A form of the invention suitable for driving locomotives is shown in Fig. 13. Suitable elastic bodies to produce the yielding effect are curved bars 133, Fig. 25, of steel &c. immersed in oil, which has to be squeezed out as the bars are flattened.
Patent GB-698583-A (GB)
Title: Improvements relating to electric sparkover protective devices
IPC: H01T1/04
Filed: 1951-09-10
Abstract: 698,583. Protective arrangements. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Sept. 10, 1951 [Sept. 21, 1950], No. 21295/51. Class 38 (iv). In a lightning arrester as described in Specification 698,582, comprising main gap electrodes 12, 13, Fig. 9, two series of auxiliary electrodes 14-19 and 20-25 and a magnet winding 11 by which an arc formed initially between the main electrodes is moved across the auxiliary electrodes so as to be broken up into a series of arcs, the auxiliary electrodes are elongated so that their outer ends are cut by the return flux of the winding 11 and each auxiliary electrode is formed by a pair of channelled metal strips 45, 46, as shown in Fig. 8. The strips are separated over the greater part of their length by mica insulation 58, but the outer ends are welded together at 59. The electrode structure is carried between insulating discs, such as 27, Fig. 9, and is located by cut-away portions 50, 51, and flanges 48, 49, Fig. 8, of the electrodes engaging ribs and channels on the inner faces of the insulating discs. The arc is confined within the electrode system by a bridging electrode 55 at the far end of the auxiliary system. The magnet winding is relieved of stress under surge conditions by a shunt spark gap. A number of such arresters, with voltage equalizing resistors connected across the main gaps, may be arranged as a stack in series with non-linear resistors within a porcelain housing.
Patent GB-532331-A (GB)
Title: Improvements in or relating to means for securing the firing pin in firearms
IPC: F41A19/13
Filed: 1939-07-21
Abstract: 532,331. Machine guns; smallarms. CESKOSLOVENSKA ZBR0J0VKA AKCIOVA SPOLECNOST BRNO. July 21, 1939, No. 21300. Convention date, July 30, 1938. [Classes 92 (ii) and 119] Relates to a transverse retaining pin 5 mounted on the breech bolt for engagement with a slot 10 in the firing pin 2 thus permitting firing movement but preventing withdrawal of the firing pin from the breech bolt. According to the invention, the retaining pin is provided with a recess 9 which, by axial movement of the pin, can be brought into register with part 2 of the firing pin to permit its withdrawal. In the form shown, the pin 5 is held in retaining position by a projection 7 adapted to engage a recess in the side of the breech bolt. By axial and turning movement of the pin 5 the firing pin is released and the recess 9 brought into register with the firing pin to permit of its withdrawal.
Patent GB-1168834-A (GB)
Title: Improvements in or relating to the production of Micro-Organisms
Inventor: FILOSA JEAN ANTOINE
IPC: C12N1/02
Filed: 1967-03-08
Abstract: 1,168,834. Yeast &c. BRITISH PETROLEUM CO. Ltd. March 8, 1967 [May 13, 1966],  No. 21340/66. Heading C6F. The product of the purification stage (containing the micro-organism) of the cultivation process described and claimed in Specification 1,059,886 is subjected to a separation stage (decantion and/ or centrifugation), thereafter the proportion of water is reduced in a fraction containing the microorganism and the fraction is subjected to solvent extraction.
Patent GB-698255-A (GB)
Title: Improvements in mouldable articles for application to the human body
IPC: A61L15/07
Filed: 1950-08-29
Abstract: An article of thermoplastic synthetic resin which is rigid at body temperature is electrically heated to a mouldable temperature whilst it is applied to the body.  The heating may be effected by passing a current through the article or through a heating wire embedded in the article, or by a dielectric heating process.ALSO:An article of thermoplastic synthetic resin is adapted for moulding to a portion of the human body, the article being rigid at body temperature and being electrically heated to a mouldable temperature whilst it is applied to the body.  The heating may be effected by passing a current through the article or through a heating wire embedded in the article, or by a dielectric heating process.
Patent GB-282850-A (GB)
Title: Improvements in or relating to valves for inflating purposes
IPC: F16K15/20
Filed: 1926-08-30
Abstract: 282,850. Beasley, T. Aug. 30, 1926. Tyre and like inflating valves.-An inflating valve adapted for use in connection with football bladders, air cushions, toys, surgical goods and motor car or cycle tyres and of the type comprising a threaded member e provided with longitudinal and transverse passages g, h adapted to be screwed into engagement with a seat f formed in a member a has the transverse bore arranged to open into the threaded wall so that air passes to the container between the co-operating threads. Fig. 1 shows the device arranged for use with surgical goods. In this form the member a has a corrugated taper part for attachment to a tubular extension on the container and the part e has a similar extension adapted to receive a push on pump connector. As adapted for football bladders the top of the member a is formed with a flange against which the reinforced edge of a hole in the bladder is clamped, and the member e has a similar milled manipulating flange formed with a threaded socket to receive the pump connection. As adapted for use with pneumatic tyres and shown in Fig. 5, the transverse bore is enlarged and fitted with phosphor bronze non-return ball valve r held in place by burring over the edge of the passage. A manipulating flange t slightly smaller in diameter than the body is provided and a dust cap provided with a washer u adapted to engage the nipple u is screwed on to the body. The device may be made of ebonite, brass, iron or steel and a number of alternative radial passages may be provided. The lower threads may be cut deeper or grooves may be provided to facilitate the passage of the air.
Patent GB-646206-A (GB)
Title: Improvements in or relating to a plastic bituminous insulating composition
IPC: E04B1/62
Filed: 1947-08-06
Abstract: A plastic bituminous composition serving as a heat and sound insulating covering and capable of drying uniformly after being sprayed on to vertical structures to a depth of at least 1/8 inch without running, sliding, or slipping, comprises a normally solid bituminous base, a volatile solvent therefor, and a filler having a factor, calculated from the formula <FORM:0646206/V/1> , where E is the volume per cent of the filler in the liquid composition, F is the volume per cent of the remaining constituents of the liquid, C is the true specific gravity of the filler, and H is the specific gravity of the composition ready for application, of between 0.2 and 0.45, preferably between 0.25 and 0.45.  The composition also has a factor, calculated from the formula <FORM:0646206/V/2> , where A is the percentage volume of the filler in the dry composition, B is the percentage volume of the remaining constituents, and D is the specific gravity of the dry composition, of 0.60-1.00, preferably 0.65-0.85.  In a modification, the factors D and H in the above formul  are replaced by the average of D and H.  Methods of obtaining these various factors are described.  Fillers may be clay, zinc oxide, litharge, powdered limestone, slate, kieselguhr, tripoli, mica, vermiculite, granulated rubber, sawdust, barium sulphate, cork dust, or the like.
Patent GB-920063-A (GB)
Title: Improvements in fuel injection pumps
IPC: F02M41/12
Filed: 1958-07-03
Abstract: 920,063. Fuel injection pumps. MONOCAM Ltd, Z. S. MIRACKI, and W. FRIEDLANDER. June 26, 1959 [July 3, 1958], No. 21385/58. Class 102(1). [Also in Group XXIX] A fuel injection pump comprises a rotating and reciprocating piston 11 which delivers fuel successively to outlets 56 and is actuated by a cam 12 which is rotated by a yoke 13 of a sleeve 14 and engages rollers (not shown). The sleeve 14 is provided with internal helical threads engaging threads 15 on a drive shaft 16 which is movable axially and is loaded by a spring 20a into engagement with a cup member 22. The sleeve 14 also carries a gear of a gear pump 31 which supplies fuel to the injection pump and to a chamber formed on the lefthand side of the cup 22. As the speed of the engine increases, the pressure of fuel delivered by the pump 31 increases and the sleeve is moved to the right to move the drive shaft which, through the helical threads, advances the timing of the beginning and end of injection.
Patent GB-598545-A (GB)
Title: Improvements in or relating to luminescent screens
IPC: H01J29/18
Filed: 1944-11-01
Abstract: 598,545. Luminescent materials for radiolocation. GENERAL ELECTRIC CO., Ltd., JESTY, L. C., and HOPKINSON, R. G. Nov. 1, 1944, No. 21408. Drawings to Specification. [Classes 39 (i) and 40 (v)] A luminescent screen which is to be scanned by light dependant upon incoming signals comprises two superposed layers of luminescent material, the one nearer to the scanning source giving short built-up and afterglow periods, whilst permitting light to pass to other layer, only sufficient to give it relatively long build-up and afterglow periods, the visible light emitted by the first layer being able to penetrate the second layer for viewing purposes. The layers are not necessarily entirely discrete, but may merge into each other, with a preponderance of one or the other at each side. In one form, the third of three superposed layers, i.e. that remote from the viewer, receives the scanning beam, e.g., in a cathode ray tube, and its emitted radiation is capable of exciting the first layer and preferably the second layer, although the latter may be partly or wholly excited by the incident beam of radiant energy. The first layer may be zinc sulphide actuated with copper having a green long afterglow, the second layer zinc cadmium sulphide 73 per cent Cds., 27 per cent ZnS., having a short orange afterglow and third layer blue luminescing zinc sulphide actuated with silver. The first layer is dusted on to a glass carrier covered with a thin binder layer of phosphoric acid in acetone so as to give an optical transmission of 55 per cent. A dilute solution of potassium silicate is sprayed on and the second luminescent material dusted on so that the total transmission thickness of the two layers is 40 per cent. The third layer is applied in the same way. This screen gives a green stationary pattern and a red moving pattern when used in a radar-scanning apparatus. An improved colour contrast is obtained by viewing through didymium glass, or by means of two filters, the pass bands of which are separated by a region covering the overlap of the red and green light emitted by the screen and which are moved across the screen at a frequency above flicker frequency. The scanner emitting a modulated beam may be either a high intensity cathode-ray tube having a blue emitting screen or one of the mechanical type. A mask movable in synchronism with the scanning beam serves to suppress the red flash of the scanning spot. Alternatively, the screen consists of two layers the second comprising a mixture of two luminescent materials, one yielding the desired short build-up and afterglow periods and the other emitting a blue or ultra violet radiation. Orange luminescing zinc fluoride actuated with manganese and zinc cadmium sulphide activated with copper (68 per cent ZnS., 32 per cent CdS.), with a red orange luminescence are also used. A table showing various alternative combinations and mixtures of the above-mentioned materials is included in the Specification.
Patent GB-982195-A (GB)
Title: Improvements in toy vehicles
Inventor: FAIRBAIRN HOWARD WILLIAM
IPC: A63H17/26
Filed: 1962-06-04
Abstract: 982,195. Toy vehicles. METTOY CO. Ltd. May 31, 1963 [June 4, 1962], No. 21429/62. Heading A6S. A toy vehicle has a chassis carrying pairs of wheels 10 on axles 7, 12 movable upwardly in grooves against leaves 4, 5 of a sheet spring 2 formed integrally with the chassis which is of synthetic plastics material. The axles are slid up a ramp 8 and pushed in beneath the leaves of the spring until they drop into said grooves. The body is fitted to the chassis by inserting a tongue 13 on the end of the chassis into an aperture 14 in the body, the rear end of the chassis being fixed to the body by screws through apertures 16.
Patent GB-275800-A (GB)
Title: Improvements in and connected with electric condensers for use in wireless apparatus
IPC: H01G4/30
Filed: 1926-08-31
Abstract: 275,800. Melhuish, C. D. Aug. 31, 1926. Condensers of the type wherein interleaving sheets of foil and mica are clamped together between top and bottom plates by means of a screw which passes through the stack and screws into the top or bottom plate, are arranged so that the screw breaks down under excessive pressure. Alternate sheets of foil a and mica b, of circular, oval, or other suitable shape, are arranged in a casing c which is hermetically sealed by a base cover plate c'. Each foil has a tag and the tags are arranged in projections c<1> on the casing and connected to terminals d. A metal screw g passing through central holes in the foil and mica sheets clamps the latter between metal covers e, f by screwing into the plate f or into a nut beneath it. By slightly adjusting this screw the capacity may be varied, and to prevent too great pressure being applied to the condenser, the screw may be arranged to break down either by being made hollow or with a reduced portion, or it may screw into a soft nut. By passing a bolt through the screw a one-hole fixing may be effected, and the screw has pin holes to receive a pin-hole spanner or the like. The condenser may be arranged at one end of a, suitable support and provided with resistance mounting clips, a pair of the latter being mounted at the other end of the support to form a resistance-capacity coupling. Soldering tags may be provided and the whole may be hermetically sealed.
Patent GB-1161976-A (GB)
Title: Plastering Compositions
Inventor: PILGRIM THOMAS ALBERT
IPC: C04B28/14
Filed: 1968-05-07
Abstract: 1,161,976. Plaster compositions. BPB INDUSTRIES Ltd. 7 May, 1968, No. 21499/68. Heading C1H. A plaster composition comprises by weight 70-99À9% autoclaved hemihydrate plaster, up to 30% dry calcined hemihydrate plaster, up to 5% ground gypsum mineral, and 0À1 to 0À25% of a cellulose ether of 6,000 cp. viscosity in a 2% solution or a corresponding amount of cellulose ether of a different viscosity. The composition may also include a retarder and 0À97% of lime.
Patent GB-215210-A (GB)
Abstract: 215,210. Phipps, S. G. W., and Roneo, Ltd. May 30, 1923. Addressing-machines; stencilling-apparatus; printing-surfaces.-Addressing-machines of the kind comprising a segmental inking-roller 6 and a segmental impression roller 4 are. adapted for printing the name and address of the sender or other matter on the back of an envelope simultaneously with the printing of the usual address on the front. As shown applied to the Roneo machine, in which the stencil cards 9 are fed along a channel 8 by a reciprocating pusher, the impression roller 4 is provided with an extension 4<a> carrying a printing-plate 14 inked by hand or by such means as a roller li. The envelope 10 is positioned below the stencil card 9 and against a gauge 11. The extension 4<a> may have a groove 13, Fig. 3, or a corresponding channel to receive the sliding plate; or, the plate mav be secured to a spring clip 15, Fig. 5, sc as to be sprung on to the extension.
Patent GB-1308569-A (GB)
Title: Hand operated cutting tool
IPC: B26B13/20
Filed: 1971-04-19
Abstract: 1308569 Scissors; hand tool handles; Injection moulding handles J WISS & SONS CO 19 April 1971 [13 April 1970] 21535/71 Headings B5A B4B and B4K [Also in Division B3] A hand-operated cutting tool e.g. a pair of scissors, comprises a pair of blades 11, 12 having shanks 13, 14 on which are provided tangs 15, 16, separate handles 17, 18 being fitted on the tangs. The tangs are curved in order to prevent twisting by the handles and extend beyond the point of finger pressure on the handles; the tangs may be formed with barbs for retaining the handles or the latter may be secured by an adhesive, The handles which may be of plastics material or metal, are produced by an injection moulding process, shaped cores (21), Fig. 2 (not shown), corresponding to the shape of the tangs being inserted into a mould 20, the plastics or metal being injected into the latter and, before the final cooling and hardening of the material, the cores are removed by rotating a pivoted arm (23). In modifications, the core (21) may be connected to a curved rack (25), Fig. 4 (not shown), actuated by a pinion (28) or to a linkage arrangement (31, 33) Fig. 6 (not shown).
Patent GB-152483-A (GB)
Title: Improvements in and relating to electric light fittings
IPC: F21V17/02
Filed: 1919-09-03
Abstract: 152,483. Jordan, S. T. Sept. 3, 1919. Supporting. - The shade a of an electric light is supported by a plate d which is provided with a coiled spring e having loops e<1> which grip the cord f attached to the lamp holder c. The hole b in the shade is of sufficient size to permit of the passage therethrough of the lamp holder so that when the cord is disengaged from the coils e<1> and slipped out of a slot in the plate d the latter may be removed and the lamp holder drawn through the hole in the shade. An additional spring grip may be used to enable the height of the fitting as a whole to be adjusted.
Patent GB-777410-A (GB)
Title: Improvements in or relating to a railway truck
IPC: B61F3/06
Filed: 1955-07-27
Abstract: 777,410. Railway trucks. GENERAL STEEL CASTINGS CORPORATION. July 27, 1955 [Aug. 30, 1954], No. 21696/55. Class 103(6). A railway truck has spaced wheel axles 2, 3, 4, Figs. 1 and 3, supporting a truck frame comprising side members 8 and transverse transoms 10, each transom being offset at 10a, and cross members 10 of a bolster being similarly offset at 16a. The ends of the cross members are supported by springs 15 mounted on a spring plank 14 which is supported by pairs of hangers 12, 13, the hangers 12 being suspended from the end portions of the transoms 10 and the hangers 13 being suspended from brackets 11. The cross members 16 of the bolster are connected by a central member 17 having a bearing 18 to carry the body of the truck. Chafing plates 19 are provided on the frame and bolster. A driving motor 20 associated with each end axle is spring supported at one end on an L-shaped bracket 22 depending from the adjacent transom 10. In a modification the transoms are apertured at the ends to form bifurcations, each of which carries a hanger for supporting the spring plank. The ends of the bolster cross members depend through the apertures at the ends of the transoms. In the construction shown in Fig. 7, the truck frame is resiliently supported on the axles by means including equalisers 66, equaliser springs 67 and suspended links 68 mounting additional frame-supporting springs 69. No spring plank is used the bolster being supported at the ends 80 of the bolster cross members by bars 76 carried by swing hangers 75. The hangers are suspended from bifurcated ends of the transoms.
Patent GB-681327-A (GB)
Title: Improvements in or relating to ladies skirts
Inventor: SOSNOW SYLVIA
IPC: A41D1/14
Filed: 1950-09-04
Abstract: 681,327. Skirts. TRAVERS, Ltd., S. May 10, 1951 [Sept. 4, 1950],. No. 21767/50. Class 141. A wrap-over skirt has an attached waistband 2 having free ends 2a, of sufficient length to be brought round towards the back or front, when the skirt is overlapped at the front or back in wear, and attached to two spaced retaining means e.g. buckles 4 provided on the outside of the waistband, a slot 5 being provided to allow the inner of the ends 2a to pass to the outside. The skirt may be made of a rectangular piece of material provided with darts 3 adjacent the waistband. Pockets 7 and loops 6 on the waistband adjacent the buckles 4, may be provided.