baber/WOPTO huggingface dataset:
Patent GB-1272434-A (GB)
Title: Manually actuatable metal-working tool
Inventor: BOYAJIAN ALFRED ZAVAN
IPC: B21D11/12
Filed: 1969-05-16
Abstract: 1,272,434. Shearing; angular bending. A. Z. BOYAJIAN. 16 May, 1969 [20 May, 1968], No. 25007/69. Headings B3E and B3W. A manually actuatable tool for severing hard metal rod or wire has a handle 11 and a cutter 24 pivoted to a base 10 at 12 and 27 respectively. To sever a rod (not shown) located in aligned apertures a-f or slots 41 in the base and the cutter, a stud 16 on the handle engages the rear edge of the cutter and pivots it about pivot 27. The cutter can be reversed end to end to bring screw threaded apertures into use. Slots 30, 31 allow clearance for the pivot 12 in both positions of the cutter. To bend a rod R, Fig. 3, positioned by a post inserted in aperture 19 or 20, a clamp 22 and the pivot 12, the stud 16 engages the rod and bends it about the pivot 12. The pivot 12 may be replaced by one of a different diameter for varying the radius of the bend. In an alternative embodiment only for severing, the handle has, instead of a stud 16, a thickened cam portion surrounding the pivot 12. Cutters of circular or square form or triangular with chamfered corners have up to four pivotreceiving holes, each having a group of cutting apertures associated with it. In use the base and handle may be held one in each hand or the base may be fixed to a support.
Patent GB-1117441-A (GB)
Title: Apparatus for projecting decorative effects
Inventor: HEALEY COLIN JOHN
IPC: G09F19/18
Filed: 1963-09-24
Abstract: 1,117,441. Producing colour light effects. HEALEY DEVELOPMENTS (1898) Ltd. 29 Dec., 1964 [24 Sept., 1963(2)], Nos. 25023/63 and 25024/63. Heading F4R. [Also in Division G2] Apparatus for projecting on to a viewing surface, such as a wall, screen, lamp shade, or even a cloud, a decorative effect composed of areas of variably localized illumination comprises a plurality of undiffused filamentary or point sources of light, at least one convergent lens or concave mirror, between the sources and the viewing surface, the sources being mounted as a group in fixed or adjustable mutual relationship so that most of the sources are appreciably away from the optical axis of the lens or mirror and separated therefrom by not more than the focal length thereof, at least one aperture disposed in an opaque member in the path from the sources to the viewing surface, and a motor for continuously moving the lens or mirror and/or the aperture across the path. The light sources may comprise groups of incandescent filament lamps or incandescent strip lights having substantially line filaments. Filters may be used or prisms or diffraction gratings introduced into the projected light to produce colour effects. Additional light refracting elements may be provided on one or more rotatable discs or consisting of liquid filled containers and irregular reflecting material may also be provided. Supplementary effects such as flames of candles, gas or oil or incandescent mantels may be produced using additional light sources, and ultra-violet lamps may co-operate with fluorescent surfaces. The light sources may be switched on and off by the motor and where a number of discs, turntables or cylinders are provided carrying a number of different members of the apparatus, switches may be provided for stopping one movement whilst allowing others to continue, e.g. stop the change of shape of the decorative effect whilst allowing change of colour to continue. Cooling fans may also be driven by the motor.
Patent GB-933411-A (GB)
Title: Improvements in or relating to boxes for germinating seeds and growing plants
IPC: A01G9/10
Filed: 1958-08-06
Abstract: 933,411. Receptacles for growing plants. F. R. DESBOROUGH. Oct. 23, 1959 [Aug. 6, 1958], No. 25134/58. Class 6(2). A box for germinating seeds and growing plants comprises a removable bottom wall, the arrangement of the box being such that the bottom wall may be drawn laterally from the remainder of the box. In one embodiment the box comprises end walls 11 which terminate above the lower level of side walls 10, the latter being formed with channels 20 to slidably receive the bottom wall 15. Alternatively the bottom wall may be supported on pegs projecting inwardly from the side walls 10, or on the lower, inwardly projecting limbs of U- shaped clamps fitted over the side walls, or by means of closed bands extending across the top edges of the sides walls and across the bottom face of the bottom wall.
Patent GB-338209-A (GB)
Title: Improvements in or relating to apparatus for hoisting and tipping railway wagons
IPC: B65G67/00
Filed: 1929-08-17
Abstract: 338,209. Mitchell, F. G. Aug. 17, 1929. Winch-actuated hoists with guided carriers. - In a tippler hoist the wagon is balanced by a pair of weights running in guides which are inwardly curved at the top and bottom so that the balancing weights are partly supported when the wagon rests at the foot or at the top of the hoist. The Figure shows the upper portion of the hoist with the balance weights m, m<1> partly supported by the curved extensions w<1>of the guide bars w, x corresponding to the position of the wagon when supported at the foot of the hoist. The weights are pivoted at their lower ends to links r which are connected together at the top by a transverse rod carrying a horizontal bar t<1> to which is fastened a pair of ropes v from the winch drums e, e<1>. The transverse rod carries rollers u which by entering guides curved inwardly at their lower ends maintain the links r in a suitable position when the balance weights run in the inwardly curved lower portions of the guide bars w, x.
Patent GB-1055591-A (GB)
Title: Improvements relating to shoe drum brakes
Inventor: WESTON BARRY JAMES
IPC: F16D65/14
Filed: 1962-07-31
Abstract: 1,055,591. Shoe drum brakes. GIRLING Ltd. July 17, 1963 [July 31, 1962], No. 25188/62. Heading F2E. A drum brake has shoes 10, 11 mounted on a back plate 12 with one end fulcrummed on a stationary anchor or articulated to the end of the other, as at 14 and their other ends separated by a cam 16 angularly movable to apply the brake the cam being slidably mounted at 21 on a rotatable cam-shaft and provided with lugs 17 adapted to move with the shoe-ends in a direction generally parallel to normals at the engaging faces of the lugs and shoes. The cam 16 is a dished member which partially overlies the shoe ends. It has a slot 23 which is engaged by a blade on the cam-shaft having a head which retains the cam thereon. The lugs are offset slightly on the opposite sides of the cam to ensure movement in the direction specified. In an alternative embodiment two independent pairs of shoes engage a common brake drum and each pair is capable of being operated either simultaneously or independently of the others by a cam as described above mounted on a separate cam-shaft.
Patent GB-1469358-A (GB)
Title: Enzyme product
IPC: C08F8/00
Filed: 1975-06-12
Abstract: 1469358 Immobilized enzymes NESTLE SA 12 June 1975 25194/75 Heading C3H An enzyme is reacted with a polymer which carries both free aldehyde and free acid groups, the latter making up at least 5% of the total of such groups. The preferred enzyme is trypsin and it may be reacted with a copolymer of acrolein and acrylic acid. Sufficient free acid groups ensure that the solubility is pH dependent. Fixation of the enzyme to the copolymer is advantageously carried out in a buffer solution at room temperature. Using a buffer of pH 8 in aqueous homogeneous phase, the product is isolated by precipitation at pH 4.
Patent GB-407056-A (GB)
Title: Vertical boilers
IPC: F24H1/44
Filed: 1932-09-09
Abstract: 407,056. Vertical steam boilers. DANKS (NETHERTON), Ltd., H. & T., and DANKS, J. A., Halesowen Road, Netherton, Dudley, Worcestershire. Sept. 9, 1932, No. 25202. [Class 123 (ii).] The furnace gases from the firebox 3 are directed across vertical water tubes 12 in an enlarged combustion chamber 8 above the firebox bv a baffle in the centre of the chamber. The baffle 15, Fig. 1, is of block form and the gases flow around it to an outlet flue 14 at the top of the combustion chamber. In a modification, the baffle 19, Fig. 2, is of C-form and the gases first flow into the baffle and then around it before escaping through a flue 17 at the side of the combustion chamber.
Patent GB-204516-A (GB)
Title: Improvement in and relating to angle concrete bricks and blocks
IPC: E04B2/02
Filed: 1922-09-19
Abstract: 204,516. Miller, J. E. Sept. 19, 1922. Building - blocks, special shapes of.-The inner and outer corners c, d of angle bricks project beyond the vertical planes of the sides so as to provide shallow spaces e for the reception of plaster or other material. A keyway g is provided around the inner or outer corner, or both, of each block to receive plaster or other securing-medium.
Patent GB-1421943-A (GB)
Title: Manufacture of poly-alpha-olefins
IPC: C08F4/00
Filed: 1973-05-29
Abstract: 1421943 Ziegler polymerization catalyst for olefins BADISCHE ANILIN- & SODA FABRIK AG 29 May 1973 [30 May 1972] 25363/73 Heading C3P Alpha olefins are polymerized using a catalyst system comprising (a) R 3-n AlCl n  where R is C 2-6  alkyl and n is 0 or 1, and (b) a titanium containing component obtained by grinding together a substance of formula TiCl 3 .Y 3 AlCl 3  with an organic nitrogen- and/or phosphoruscontaining electron donor compound in a molar ratio of Ti compound : donar of 10 : 5 to 10 : 1 and a ratio of Ti in the above substance to the component (a) of 10 : 5 to 10 : 300, the grinding to form a complex compound in (b) being carried out in a vibratory ball mill using steel balls of diameter 6 to 60 mm., with a grinding acceleration of 30 to 70 m.sec.<SP>-2</SP>, over a period of from 10 to 70 hours and at a temperature from 4 to 10 C. below that temperature at which the particles in the ground material begin to agglomerate. In examples, polypropylene and polybutene-1 are obtained using a catalyst comprising Et 2 AlCl and a component (b) obtained by grinding in the manner specified, in the absence of other auxiliary or additive substances, TiCl 3 .V 3 AlCl 3  and Ph 3 PO or n-Bu 3 P. Other conventional phosphine, phosphine oxide and amine donors are mentioned, as well as hexamethylphosphoric triamide.
Patent GB-176400-A (GB)
Title: Improvements in the recovery of ammonia in the ammonia soda process
IPC: C01C1/20
Filed: 1920-09-03
Abstract: 176,400. Pattison, E. W., (Mathieson Alkali Works, Inc.). Sept. 3, 1920. Ammonia; ammonium sulphide; sodium bi-- carbonate.-In a modified ammonia-soda process,. ammonia is liberated from the ammonium chloride by treating with an alkaline earth sulphide and converting the resulting ammonium sulphide into ammonia by means of an alkali. In the preferred method of working, feeder-liquor from the bicarbonate filters after passing through the heater B wherebv the ammonium bicarbonate present is decomposed, passes to the distilling section A through a pipe 3, whereupon ammonium sulphide and barium chloride are produced by interaction with barium sulphide obtained by lixiviation of black-ash and introduced through the pipe 4. The ammonium sulphide passes to the receptacle C and is treated with caustic soda to give sodium sulphide and free ammonia which is conveyed to the absorbers. Sodium carbonate may be employed in place of caustic soda, but slight excess is required which contaminates the sodium sulphide, and also ammonium carbonate instead of ammonia is produced. The sodium sulphide liquor is removed through the pipe 10 and is crystallized. The barium chloride is withdrawn through pipe 6 and is treated either with a little hydrochloric acid to convert the small quantity of barium sulphate present into barium chloride or is treated with carbon dioxide to precipitate the sulphide as carbonate. The barium chlorideis separated from the sodium chloride present by fractional crystallization. Alternatively, theammonium chloride is crystallized from the feeder liquor, and its solution in water treated with alkaline-earth sulphide.
Patent GB-1314966-A (GB)
Title: Apparatus for projecting hemispherical pictures
IPC: G03B37/04
Filed: 1971-04-19
Abstract: 1314966 Panoramic cine projection HITACHI ZOSEN KK 19 April 1971 [30 Nov 1970] 25433/71 Headings G2A and G2E An arrangement for projecting hemispherical pictures includes a screen 1 having a number of projectors 5 in compartments 4 below the equator E of the screen 1, the compartments 4 each having a projection window 3 with an apertured mask 6. Each window 3 has an opening shaped to correspond to the image projected on to the screen by its associated projector. As shown in Fig. 3 a portion 8 of the mask 6 projects inwardly of the window 3 and is of a semitransparent nature. In a modification, Fig. 4 (not shown) this portion 8 may increase in transparency the further from the edge 7 one progresses. This semi-transparent region permits less noticeable overlap regions to be formed between the areas of projection on the screen 1 due to each projector 5.
Patent GB-958222-A (GB)
Title: A centrifugally operated switch
IPC: H01H35/10
Filed: 1960-07-21
Abstract: 958,222. Centrifugal switches. J. W. SCHUT. July 21, 1960 [July 25, 1959], No. 25490/60. Heading H2B. In a centrifugally operated switch in which rotation of a rotor cam element causes weights to move the rotor element axially and cause a stator cam element to slide and so operate switch contacts, one of the rotor or stator cam elements is a ring mounted for axial reciprocating movement and the other is a sliding part which in one end position bears on a surface of the ring which is parallel to the direction of reciprocation of the rotor cam element. In a first embodiment, a rotor (Figs. 4 and 6) comprises three symmetrically arranged weights 70, each mounted on the centre member 71 of a tilting frame 71, 73, 74. The frames are so shaped that limbs 73, 74 of adjacent frames cross each other and also pass beneath the centre member 71 of the third frame. In this way, as the weights 70 and frames 71, 73, 74 tilt when the hub 66 is rotating to lift a ring-shaped transmission member 61, the latter is constrained by the frames to move axially and prevented from tilting. As the hub slows down, and the weights 70 move inwards, a leaf spring 83 straightens to apply a restoring force to the ring 61. The outer edge of the ring has a conical surface 62 and a cylindrical face 63 which mate with similar surfaces 45, 46 on stator members 9 (Figs. 1 and 2). As the rotor speed decreases, the ring 61 (shown as 1 in Fig. 2) descends and forces apart the two stator members 9, to pivot bell-cranks 23, 31 and 24, 32 about the edges of members 13<SP>1</SP> against the pressure of a leaf-spring 55. Projections 27, 28 are thus removed from a spring-loaded bridging contact 17, which thus connects contacts 18, 19. In an alternative stator construction (Fig. 8, not shown), each stator member 9 moves outward on ball bearings into contact with a leaf spring which, through a lost motion connection, allows a stressed spring-blade contact to move against its fixed contact. When the stator members 9 retract, each associated leaf-spring is allowed to retract also, taking with it (after some lost-motion) the spring contact blade. In a further embodiment (Fig. 7, not shown), the rotor has sliding cam elements which serve to move a stator ring element axially to cause switching.
Patent GB-978048-A (GB)
Title: Improved foam mattress
IPC: B32B27/00
Filed: 1961-07-14
Abstract: 978,048. Laminates. DUNLOP RUBBER CO. Ltd. July 14, 1961 [Aug. 2, 1960], No. 25492/61. Heading B5N. A mattress comprises two layers of polyurethane foam of different compression hardness bonded together at one of their main faces, e.g. by an adhesive such as a polyurethane prepolymer or a rubber solution containing a polyisocyanate. The foam layers may be plain, or one or both may be formed with cavities e.g. of dome, cylindrical or wedge shape; they are preferably of equal, but may be of unequal, thickness. Differing degrees of compression hardness may be produced by using different constituent polyols, using softening, or different softening, additives, or providing different degrees of foaming, e.g. by using different proportions of water and excess isocyanate or isothiocyanate, or using auxiliary foaming agents.
Patent GB-1419649-A (GB)
Title: Fastener driving tools
IPC: B25C1/14
Filed: 1973-05-29
Abstract: 1419649 Fastener driving tools OMARK INDUSTRIES Inc 29 May 1973 [2 June 1972] 25528/73 Heading B4C A cartridge-operated fastener driving tool comprises a barrel assembly 10 connected to a hand piece 12 as by a pivot pin 38 for movement from a firing position to a position in which a cartridge 68 can be inserted and removed from the cartridge chamber 66 provided in the barrel 42, a ram 58 slidable in the barrel with an airtight fit, and a slidable sleeve 70 which in the second position of the barrel assembly can be pulled rearwardly by a finger-piece 72 to cause a dog 88 on the sleeve to return the ram and create an air pressure in the barrel to aid ejection of the cartridge as shown in Fig. 4 when the sleeve effects mechanical dislodgement of the cartridge by means of a stop 76 on the sleeve engaging a dislodging member 80. The cartridge extruder 80 is provided with a cartridge-engaging flange 84 which moves rearwardly when the end 83 of the extractor is engaged by the stop 76 during the rearward movement of the sleeve 70. When dislodged, the cartridge 68 is blown clear of the tool by the air pressure. As the sleeve is returned, a hook 104 on the sleeve catches the extractor to return it. The cartridge chamber 66 may then be re-loaded and the barrel assembly pivoted back into alignment with the firing mechanism which consists of a firing pin 14 slidably mounted in a breech block 16, a sear 20 urged downwardly by a spring 22 to lock behind a shoulder 24 when the firing pin is loaded against the action of a spring 18 and a trigger bar 28 which pushes up to release the sear when the trigger 26 is pulled. A magnet 106 acts to hold the barrel assembly in the closed position.
Patent GB-400399-A (GB)
Title: Improvements in steel hutches or colliery corves or like vehicles
IPC: B61D11/02
Filed: 1932-09-14
Abstract: 400,399. Railway - vehicle bodies. NORTH BRITISH STEEL FOUNDRY, Ltd. and PAUL, J., Bathgate, Linlithgowshire. Sept. 14,1932, No. 25541. [Class 103 (iv).] In a colliery corve or like vehicle body of the kind in which the sides, ends and base are constructed of sheet metal or steel plate, the base 4 having an upturned flange 5 all around and the side plates 7 and end plates 8 having overlapping rounded edges forming the corners of the body, a sheet metal cope rail 10 is applied to the upper edges of the side and end plates, such rail being made in sections pressed to a pear shape and having parallel portions 10a gripping the plates between them. At the corners the rail sections are curved correspondingly to the side and end plates and are united by half-lap joints 12. The parts are secured together by bolts or rivets having external cup heads to prevent injury to persons handling the corves, while the side and end plates may be strengthened by horizontal corrugations 14.
Patent GB-768373-A (GB)
Title: Improvements in and relating to a foot corrective pad
IPC: A61F5/01
Filed: 1954-09-02
Abstract: 768,373. Surgical pads. SCHOLL MANUFACTURING CO., Ltd. Sept. 2, 1954 [Jan. 14, 1954], No. 25542/54. Class 31(2) A foot pad includes an apertured pad part having a blunt forward extremity and a tapered rear extremity, a thin cover extending beyond the outer edge of the pad part and having opposed integral strap members for securing the pad on the foot. A body part 4 of resilient material, e.g. foam latex, has an aperture 8 and is provided with a thin cover 9, e.g. sheet rubber, which extends beyond the body part 4. The cover 9 is extended to form straps 11 for securing the pad to the foot, e.g. over a hammer toe. Adhesive 12, protected by a removable cover, on one of the straps 11 enables the straps 11 to be fastened to one another to form a securing loop adjusted to the side of the part it is to surround. The pad may be of concavo-convex shape laterally and longitudinally, this shape being produced by bonding the cover 9 to the body part 4 when the latter is slightly stretched.
Patent GB-806168-A (GB)
Title: Improvements in or relating to the production of semi-conductor bodies
Inventor: BRADSHAW STANLEY EDWIN
IPC: H01L21/00
Filed: 1955-09-06
Abstract: <PICT:0806168/III/1> In a method of producing a semi-conductor crystal in which a molten mass of the material, containing at least one significant impurity which displays differential solubility in the liquid and solid phases of the semi-conductor material, is progressively solidified to form the crystal, some of at least one impurity is evaporated from the molten material, the effects of the evaporation and the differential solubility on an electrical characteristic of the solidified material being in opposition, and the rate of solidification is controlled to balance the two effects and to reduce the variation in the electrical characteristic in the grown crystal.  A single crystal of silicon is grown on a seed crystal 37 which is dipped in molten silicon 36 in a silica crucible 7.  The crucible 7 is supported in a graphite cup 8 which serves as an electric resistance heater, and is surrounded by a heat baffle 16. The temperature is measured by a thermocouple 20 and 21 which is connected to a control unit to maintain a constant temperature.  A pellet 38 of silicon containing phosphorus is caused to drop through a tube 25 into the melt 36, by rotating a plate 34 so that an aperture 35 registers with an aperture 29 in a plate 28.  A rod 22 supporting the seed crystal 37 is rotated with the seed 37 dipping in the melt and is slowly withdrawn to grow the single crystal.  A vacuum is maintained by a pump applied to a tube 5 so that evaporation of phosphorus from the melt takes place and the crystal is grown at a rate such that the concentration of phosphorus in the melt is constant, and the single crystal grown is of uniform resistivity.
Patent GB-283640-A (GB)
Title: Improvements in pneumatic mechanical pianos
IPC: G10F1/02
Filed: 1926-10-14
Abstract: 283,640. Taliani, T. Oct. 14, 1926. Player-pianos. - The hammer of a pianoforte is operated from its pneumatic 1 by a flexible cord or wire 4 guided by rollers 5, 7 and connected to a rigid wire 11 adjustably tensioned by a spring 13. The wire carries an adjustable block 18 which contacts with the hammer-butt at 9. The pneumatics 1 may be arranged in a single row, the guide rollers ensuring vertical action on the hammerbutts. The hammer stroke may be adjusted by adjusting the block 18.
Patent GB-700857-A (GB)
Title: Device for guiding web-like material
IPC: D06C3/06
Filed: 1950-10-20
Abstract: 700,857. Guiding webs transversely. AKTIEBOLAGET SVENSKA FLAKTFABRIKEN. Oct. 20, 1950 [Oct. 21, 19491], No. 25623/50; Class 100 (1) In an apparatus for guiding a web transversely before entry into a machine, for example, a drying machine, edge uncurlers 3, 4 and 6 and feed arms 10, comprising endless chain conveyers carrying-web-engaging pins, are carried on independent supports, but are connected by a lostmotion device, such that for small transverse web deviations the edge uncurlers remain stationary, while the feed arms 10 are moved transversely, about pivots 20, towards or away from the web centre by individual reversible electric motors (not shown). The motors 10 are controlled by web-engaging feelers 8 supported on the free ends of the arms 10 which are supported on a horizontal bracket 13 by movable trucks 14. The edge uncurlers 3, 4 and 6, provided with alternate right and left hand threads, are driven by driving motors (not shown) carried on supports 5 mounted on wheels 15 and 19 for movement transverse to the direction of web feed. Each support 5 is connected to the corresponding feed arm 10 by a pin 23 engaged in an aperture 22 of a bracket 22a on each support, the lost-motion between the support and feed arm being adjustable by bolts 21 and 24.