baber/WOPTO huggingface dataset:
Patent GB-945994-A (GB)
Title: Improvements in or relating to tyre building drums
IPC: B29D30/26
Filed: 1960-06-30
Abstract: 945,994. Tyre building drums. PNEUMATIQUES CAOUTCHOUC MANUFACTURE & PLASTIQUES KLEBER COLOMBES. June 30, 1960 [June 30, 1959], No. 22962/60. Heading B7C. In a tyre building drum of the kind comprising a cylindrical membrane held between a pair of relatively axially movable circular end plates, the membrane is axially inextensible and has expansible elements mounted on its outer surface. The expansible elements take the form of a pair of bladders encircling the drum and disposed one on each side of its transverse plane of symmetry. These bladders are inflatable, preferably by their communicating through holes in the membrane with a source of air pressure applied to the drum interior. Fig. 2 shows one form thus inflated when the ends 5, 6 have been brought inwards to give the drum its toroidal tyre forming shape. The membrane 1, reinforced by axial metallic or like inextensible elements 2, has an extensible outer covering 7 attached to it in two end and one central region thereby to form two inflatable bladders 8, 9 to which air is supplied through holes 10, 11. In Fig. 3, the bladders 24, 25 are themselves made inextensible by fabric or like reinforcement and, in the cylindrical form of the drum, are folded as shown. Pressure applied to them through holes 26, 27 when the ends 22, 23 are moved inwards causes them to unfold so that the drum then takes up the required toroidal form.
Patent GB-602014-A (GB)
Title: Improvements in locks and fastening devices
IPC: E05B65/08
Filed: 1945-09-06
Abstract: 602,014. Latches. INGERSOLL, Ltd., YOUNG, L. W., and TAYLOR, J. W. Sept. 6, 1945, No. 23011. [Class 44] In latch mechanism of the kind in which a latch in the form of a slotted plate co-operates with a staple in the form of a pin, the latch plate is mounted to slide in guides in a direction transverse to the direction in which the latch and the staples approach one another and the slot in the latch is inclined to both these directions so that when the pin meets either edge of the slot it will exert a camming action on the latch, moving it in one direction or the other to either the latching or unlatching position. In the form shown in Fig. 1 the latch comprises a plate 6 sliding vertically in a casing 1 on the door, the casing having a slot 3 for entry of the pin 4 on the door jamb. A slot 9 is formed in the latch plate 6 at an angle of approximately 45 degrees to the direction of sliding. As the door is closed, the pin 4 enters the slot 9 and cams the latch upwardly against gravity or against the action of a spring 8. A sliding bolt is then urged into position below the latch plate by a spring 12, a handle 13 being provided for retracting the bolt 11 to unlock. The upper edge of the bolt 11 and the lower edge of the plate 6 are preferably bevelled to prevent rattle. In the form shown in Fig. 4, the locking bolt 11 is withdrawn by a follower 18, and to dead lock the latch an auxiliary bolt 21 is provided, actuated by a key lock operating a cam 22 which moves the bolt 21 to the position shown to lock. Figs. 6 and 9 show modified forms.
Patent GB-1372802-A (GB)
Title: Method of making a plurality of elements each consiting of an  imperforate area having an aperture therein
IPC: H01J9/14
Filed: 1972-05-17
Abstract: 1372802 Depositing a metal grid R C A CORPORATION 17 May 1972 [27 May 1971] 23091/72 Heading C7B [Also in Division H1] A grid for electron guns comprises a solid frame 22 with circular areas 24 having apertures 26 and joined by bus bars 28. The grid is made by depositing a film of conducting material on an insulating substrate, removing portions of the film to form a master pattern, electro-plating metal on to the pattern then peeling off the plated metal. The conducting material may be W, Al, Cr, Ta, stannous oxide or indium sesquioxide oxide. The electro-plated metal may be Cu, Ni, Ag, Au, or Pt. The substrate may be glass and the master pattern produced by photo etching with ceric sulphate, nitric acid mixture. The film of conducting material may be cleared in H 2 O 2  + H 2 SO 4 . For Nickel, the plating solution comprises 20oz/gal Ni ions, 0.9oz/gal chloride ions, 3.4oz/gal boric acid and a brightener-stress reliever to produce pH 3.2-4.2. The temperature may be 55-60‹C. and the cement density 60 Amp/ft<SP>2</SP>. Specification 1336615 is referred to.
Patent GB-416178-A (GB)
Title: A reciprocating device actuated by a fluid pressure medium, especially suitable for operating window wipers
IPC: F01L25/06
Filed: 1933-08-18
Abstract: 416,178. Compressed air engines. KNORR - BREMSE AKT. - GES., 9, Neue Bahnhofstrasse, Lichtenberg, Berlin. Aug. 18, 1933, No. 23127. Convention date, Aug. 18, 1932. [Classes 122 (ii) and 122 (iii).] Window wipers on steam and electric locomotives as well as motor cars fitted with compressed air or vacuum, or stationary installations so fitted are operated as follows. In the construction shown, the wiper shaft d is secured to a toothed segment c in engagement with a rack carried by a piston b which is adapted to be reciprocated in a cylinder a. A casing f on the side of the cylinder contains a control valve g, and is connected through a conduit e with a source of compressed air. The conduit e is adapted by means of a groove n and conduit i in the valve g, to communicate with one or other of conduits l, l<1> which communicate with the ends of the cylinder a. Branch conduits m, m<1> serve as discharge conduits for the cylinder a. Conduits k, o in the cylinder a communicate through channels y, y<1> respectively with the ends of the valve casing which are closed by screw caps n with small apertures p. The number of conduits in end group k, o is determined by the different sizes of windows to be cleaned, only one conduit k and one conduit o being in use at the same time, the remaining conduits being closed by screws. Free movement of the valve g is prevented by pistons r under the influence of a spring q. In the position shown, air under pressure acts upon the lower face of the piston b forcing the piston upwardly until the operative conduit k is uncovered, whereupon the valve g is forced upwardly causing the compressed air to enter the cylinder a at the top end and reverse the movement of the piston b. Difficulty in starting the apparatus is avoided by the provisions of a pin w projecting from the valve g through a hole x in the casing, whereby the valve may be set manually to facilitate starting. Specification 17019/11, [Class 122 (ii)], is referred to.
Patent GB-1267315-A (GB)
Title: Improvements in and relating to remote control systems
IPC: F16H1/02
Filed: 1970-05-13
Abstract: 1,267,315. Toothed gearing. SOC. POUR L'INDUSTRIE ATOMIQUE. 13 May, 1970 [13 May, 1969], No. 23201/70. Heading F2Q. [Also in Division G6] A mechanism for independently rotating parallel shafts 1 ... 6 comprises a control shaft 15 carrying at its upper end a gear 14 which can be moved axially to mesh any one of gears 1c ... 6c on shafts 1 ... 6 and a sleeve 17 which moves axially with control shaft 15 and consists of two parts 18, 19 having flutings 20, 21 which engage fixed toothed members 24, 25 secured to the ends of the casing and also engage the gears not meshing gear 14 in order to lock them. A similar arrangement is provided at the lower end of the shaft 15 in which a gear 37 is adapted to mesh gears 31c ... 36c on screw-threaded rods 31 ... 36 carrying pointers 31a ... 36a co-operating with graduated bars 31b ... 36b. Rotation and axial displacement of shaft 15 are effected by an externally screw-threaded bush 46 co-operating with a nut 47 on rotation of a crank 45. The mechanism may be used to control flaps provided at the base of channels provided in the core of a nuclear reactor and carrying an ascending current of cooling gas.
Patent GB-183737-A (GB)
Title: Improvements in and relating to means for binding hollow walls
IPC: E04B1/41
Filed: 1921-09-01
Abstract: 183,737. Anderson, T. Sept. 1, 1921. Wall-ties.-The face of the body-portion a of a wall-tie is adapted to occupy a vertical position between the walls, and its ends are inserted between the vertical joints of the wall and have right-angled extensions b arranged to lie between the courses. In a modification, one end may be bent as shown in Fig. 2 to lie in the same plane as the extensions at the other.
Patent GB-325776-A (GB)
Title: Improvements in fruit slicers and corers
IPC: B26D3/26
Filed: 1929-07-29
Abstract: 325,776. Hans, J. F., (Wilmott, Prisk, & Co., Ltd.). July 29, 1929. Removing cores from fruit. - A fruit cutting and coring device that may be used also in connection with vegetables comprises two rings a, c, connected by a series of radial blades b the lower edges of the blades and of the inner ring being sharpened. The inner ring is extended upwards and its upper edge f sharpened. A lateral opening g is provided in the side of this extended portion to permit the removal of cores cut by either the upper or the lower edges of the ring. Handles h are secured to the outer ring.
Patent GB-481359-A (GB)
Title: Improvements relating to vehicle fittings for manipulating loads
IPC: B60P1/52
Filed: 1937-08-24
Abstract: 481,359. Vehicle fittings for loading. SPINK, A. Aug. 24, 1937, No. 23290/36. [Classes 78 (iii) and 78 (iv)] Anti-friction rollers F, adapted to be raised above the floor A of a vehicle to facilitate loading and unloading of a load container, are journalled in frames G, situated in channels C in the floor A. and provided at intervals with inclines y for engagement with rollers H on carriages J which are traversed by screws j<1> for raising and lowering the frames G with their rollers F. As shown, there are two longitudinal roller frames G their operating screws j<1> being connected by bevel gears j<2> with a a cross-shaft j<4> having square ends for receiving an operating handle. The floor A is pivoted at K to the rear of the vehicle chassis so that it can be tilted, and ramps can be extended from the rear of the floor to ground level. A winch L is provided for manipulating the load, its rope passing over a jockey pulley l<5>. The container may be secured in position and loose material discharged therefrom by tilting the floor. The rollers F may alternatively be disposed transversely of the vehicle for sideways loading and unloading.
Patent GB-1176398-A (GB)
Title: Screening apparatus
Inventor: LOCK RUDOLF
IPC: B07B1/06
Filed: 1967-05-19
Abstract: 1,176,398. Sifting apparatus. STARCOSA G.m.b.H. 19 May, 1967, No. 23332/67. Heading B2H. A screening apparatus comprises a screen 1 in the form of a hollow body of revolution having a smaller cross-section at its lower end than at its upper end, a feeding device 4 for feeding material to be screened on the inner surface of the screen at or adjacent its upper end so that the material travels over the screen surface in a downwardly spiral path A, a waste discharge 3 for oversize material, and a housing 2 surrounding the screen 1 and provided with an outlet B for the undersize or screened material. The screen 1 may have a conical, spherical, parabolic, hyperbolic, or doublehyperbolic (Fig. 6) configuration. Alternatively, the screen may have a screening surface restricted to the path or spiral descent of the material. Two or more feeding devices similar to the device 4 may be provided. Alternatively, the feeding device has two or more feed arms 4, Fig. 9, and is rotatable about the screen axis. The screen 1 may be stationary or may rotate about its central axis. In another embodiment, Fig. 11 (not shown), the whole screening assembly including the screen, the housing and the waste discharge is rotatable. In Fig. 12, the housing is divided into two or more chambers containing screening portions of different mesh so that two or more undersize fractions may be obtained. A fixed or rotatable spraying device (5), Fig. 13 (not shown), may be mounted in any of the above embodiments for spraying a washing liquid on to the material being screened.
Patent GB-615426-A (GB)
Title: Lighters
IPC: F23Q2/34
Filed: 1945-09-11
Abstract: 615,426. Frictional igniters. SZERENYI, A. Sept. 11, 1945, No. 23368. Convention date, Sept. 13, 1944. [Class 75 (iii)] The flint plunger device of a lighter is mounted in a housing carried on a plate spaced downwardly from the upper edge ot the casing, the rear end of the plunger device extending from such housing but being retained by a spring-pressed latch; the plunger can be withdrawn through an orifice in the casing on release of the latch. As shown a lighter casing has a downwardly spaced stepped closure plate 14, a flint housing 20 being carried on the upper level and the operating wheel 53 of a flint wheel 27 on the lower level. The flint is urged by a spring plunger 29 which is releasable by spring- pressed latch means. This latch means may comprise a lever 38 pivotally mounted by a hinge pin received by the side walls 36 of a channel groove on top of the flint housing 20, so that depression of the end of the lever against the action of a spring 39 raises the other end 40 to release the plunger 29. Preferably the end 40 has an inturned projection 41 engaging in a recess 42 of a hollow member 28 in which the plunger 29 slides under the action of a spring 32, so that a button 35 has to be pushed to disengage the member 28 from the recess 42 before the latch means can be operated. In an alternative form of latching means, Fig. 7, a lever 43 is hinged at one end of the sides of the channel groove of the flint housing and at the other end has a laterally offset portion 47 and a finger 49 which normally holds the member 28 but which moves to release it when the lever is depressed. The wick hood 62a, Fig. 4a, may slide in a casing 63b slotted to permit movement of a leaf spring 62b which holds the hood 62a and becomes stressed when the lid 56 is closed. The lid 56 may be hinged at 57 and be provided with a boss 60 pressed by a bow spring 59 which tends to retain the cover in either its open or closed position. A torch 64, Fig. 5, for pipe lighting, may be detachably mounted in the filling aperture 12, in the base of the lighter by pins 66, which are inserted in slots 67 and which ride up cam surfaces 68 when the head 65 is rotated. An auxiliary fuel tube 75, Fig. 8, may be mounted in the screw plug 72 of the lighter, a slot 79 being provided in its upper end so that the tube may be unscrewed and screwed into the plug the other way up to discharge the contents into the filling of the lighter when the plug is replaced. The tube may alternatively be hollow to receive a fuel container, and the wick may be passed through an orifice in the side of the tube and out through the opening in the top to ensure proper saturation of the wick. Spare flints may be accommodated in a storage cavity in the screw plug, or in a container at the side of the flint housing.
Patent GB-260223-A (GB)
Title: Load-lifting jack
IPC: B66F3/12
Filed: 1926-09-22
Abstract: 260,223. So-Lo Jack Co., Inc., (Assignees of Larson, N. G., and Mossberg, F.). Oct. 23, 1925, [Convention date]. Linkage load-handling appliances. - A toggle lever lifting jack has a lazy tongs linkage 10, the inner ends of the upper links being connected to the crutch 12 by pivots 11 and being geared together by toothed segments 13, while the inner ends of the lower links are pivoted to the base 16 and similarly geared together. The outer ends of the links are connected by pivots 18 and one set of links are fitted at a suitable distance above or below the pivots 18 with pivoted nuts 19 carrying the right and left-handed operating screw 21. This arrangement increases the leverage when the jack is in the lowered position.
Patent GB-1391389-A (GB)
Title: Bar code scanner
IPC: G06K7/016
Filed: 1973-05-17
Abstract: 1391389 Bar code reader INTERNATIONAL BUSINESS MACHINES CORP 17 May 1973 [14 July 1972] 23491/73 Heading G4M [Also in Division G1] A reader for bar code markings has two apertures 11, 12 of differing sizes. The bar codes have either wide or narrow markings (Fig. 1, not shown) and the wide aperture is the same width as the wide markings. Aperture 11 is situated with its centre corresponding to an edge of aperture 12. Light from a source (19, Fig. 3, not shown) is reflected from a document and received by photo-cells behind the apertures. Photo-cells 17A behind the small aperture feed amplifier 20 which is connected to amplifier 23 which also receives a reference voltage VR arranged to be equal to the output from amplifier 20 when the aperture views a half white/half black area. The relative level causes the amplifier 23 to turn on or off to trigger one shots 24, 25 respectively. Photo-cell 17B behind the large aperture feeds amplifier 28 which feeds amplifiers 31, 33 having reference voltage inputs VRU, VRL respectively, VRL is equivalent to the aperture viewing an area 2/3 black and 1/3 white and VRU represents an area 1/3 black and 2/3 white. The amplifiers feed an AND gate 34 such that the output represents a half white/half black area. AND gates receiving timing pulses from the one shots supply signals N representing half white/half black and W representing all white or all black. A circuit producing parallel binary signals from a set of serial C, W, N signals is illustrated in Fig. 11 (not shown). In embodiments of the reader N type semiconductor material X, Y, Z is deposited on a common P-type substrate to form a photo-cell with different receptive areas. The outputs from areas X, Y are added to produce a signal equivalent to that at A (Fig. 4) and Y and Z are added to form a signal equivalent to that at B. A further embodiment having four areas is described with respect to Fig. 9 (not shown).
Patent GB-388380-A (GB)
Title: Improved manufacture of alkali carbonate or alkali hydroxide, and ammonia or ammonium salts
IPC: C01D1/26
Filed: 1931-08-21
Abstract: Alkali carbonate or hydroxide and ammonia are obtained by reacting a mixture of alkali sulphate, carbon and lime or calcium carbonate with nitrogen to a high temperature to produce alkali cyanide which is then hydrolysed.  The hydrolysis may be carried out at 400-500 DEG C.  The carbon may be in the form of coke or coal. The alkali obtained in the hydrolysis step may be subjected to repeated cyanidization and hydrolysis to increase the yield of ammonia.  The calcium sulphide also produced in the cyanidization may be converted into hydrogen sulphide by reaction with water and carbondioxide, the hydrogen sulphide being converted into sulphuric acid which is reacted with the ammonia to produce ammonium sulphate.  The calcium carbonate also produced in the decomposition of the sulphide is returned to the process.  Reference has been directed by the Comptroller to Specifications 246,177 and 250,182, [both in Class 1 (ii), Inorganic compounds, other than &c.].
Patent GB-984039-A (GB)
Title: Improvements in or relating to centrifuge apparatus
Inventor: GULLEY PETER
IPC: B04B11/04
Filed: 1963-06-13
Abstract: 984,039. Centrifugal separators. MIXING & SEPARATING EQUIPMENT Ltd. Feb. 10, 1964 [June 13, 1963], No. 23679/63. Heading B2P. A warning system for indicating that separated sludge accumulating on a centrifuge bowl wall has reached a certain thickness comprises a sensing lever 12 disposed in the bowl 10 and adapted to be displaced as a result of the buildup of sludge on the bowl wall whereby, upon a predetermined displacement of the lever, an electrical circuit including an audible and/or visual warning device 25 is caused to close by means associated with the lever 12. The centrifuge may be of the kind described in Specification 951,388. The warning mechanism is mounted on the lid for the casing housing the bowl. The lever 12 is fixed to an angularly movable shaft 13 which when the lid is closed depends within the centrifuge bowl. A forked lever 14 also fixed to the shaft 13 engages between flanges 15 on a movable collar 16 carried by a rod 17 axially slidable in bearings 18, 19 and coupled at one end to the movable element of a solenoid 20. The collar 16 is loaded by light and strong springs 21, 22 and is adapted to operate micro-switches 23, 24 respectively located in the solenoid and warning device circuits. In operation a push button switch 26 is operated to energize the solenoid 20 resulting in displacement of rod 17 to cause closure of the normally open micro-switch 23 which maintains the energization of the solenoid after release of switch 26. Energization of the solenoid maintains lever 12 in contact with the sludge layer, contact pressure being kept to a minimum by virtue of the opposing actions of springs 21, 22. As the sludge builds up, lever 12 moves away from the bowl wall and in so doing causes lever 14 to move collar 16 until the latter opens micro-switch 23 thereby deenergizing solenoid 20 whereupon spring 22 will be effective to ensure axial displacement of collar 16 and closure of micro-switch 24 to actuate the warning device 25. Operation of the latter may be terminated by actuation of a normally closed switch 27.
Patent GB-1049484-A (GB)
Title: Improvements in toy building blocks
Inventor: FAIRBAIRN HOWARD WILLIAM
IPC: A63H33/04
Filed: 1962-06-20
Abstract: 1,049,484. Toy building bricks. METTOY Co. Ltd. Sept. 6, 1963 [June 20, 1962], No. 23713/62. Heading A6S. A toy building block 1 having a pair of opposite walls with projections 3 and recesses 6, respectively, for mutual engagement of a similar block, comprises an openable box, which may be transparent, of a plastics material, serving as a container. In the first embodiment, the box is in two halves 2 and 4, Fig. 2, and arranged with grooves 11 and inner projections 12 on respective halves so the two halves snap together. The second embodiment, Fig. 3, comprises a hinged box with snap catches 19. A third embodiment, Fig. 6, is in the form of a box 32 with a drop down flap 26. The boxes may be used as containers for model cars and other toys.
Patent GB-411715-A (GB)
Title: Improvements in and relating to hook fasteners for bracelets
IPC: A44C5/14
Filed: 1933-08-26
Abstract: 411,715. Bracelets; attaching watches to the person; fastenings. KOLLMAR & JOURDAN AKT.-GES., 79, Bleichstrasse, Pforzheim, Germany. Aug. 26, 1933, Nos. 23790 and 23791. Convention dates, March 14 and June 2. [Class 43.] A fastener for wrist-watch and other bracelets comprises a hook 5 the opening of which is closed by a member 6 disposed on the under side of the hook-carrying frame 1 and displaceable longitudinally against the action of a spring housed with the frame, the closing surface of the member 6 extending beyond the edge of the hook. The bracelet 4 is secured to the fastener by a pivoted clamp 3 which may be mounted directly on the frame 1, as shown in Fig. 1, or carried by a member 15, Fig. 4 that is yieldingly connected to the frame by springs 26, 27, Fig. 3, located on either side of the main spring 8. The fastener is made from sheet metal stampings which are bent at the edges to form housings and abutments for the springs.
Patent GB-626316-A (GB)
Title: Improvements relating to the reconditioning of pneumatic tyres
IPC: B29D30/54
Filed: 1946-08-12
Abstract: 626,316. Re-treading tyres. SIMON, Ltd., H., and LETT, G. B. Aug. 12, 1946, No. 23815. [Class 87 (ii)] Apparatus for retreading a tyre comprises a tread ring a, two shoulder matrices beach having inner surfaces of the form of a frustum of a cone, means for ,heating the matrices and the tread ring, and adjustable means for positioning the matrices on a common axis with and in contact with a tyre d and its tread ring. The matrices may be positioned by mounting them on press parts h, g. The tyre is centred by a sleeve l which is fixed to a bush k on the lower press part g, and engages in a collar f<SP>1</SP> on the tyre rim f. Pressure is applied to the tyre by means of a screw i which works in the bush k. The press part h may have a counterweight h<SP>3</SP>. The tread ring a, which is fixed on the tyre before it is positioned between the matrices, may be flexible or non-flexible and may be built up from segments secured together. The ring may have strengthening ribs a<SP>3</SP>. The ring may be of a radius slightly smaller than that of the tyre to be retreaded. The ring may be flat or curved in section.