baber/WOPTO huggingface dataset:
Patent GB-1382492-A (GB)
Title: Electric timepiece
IPC: G04C3/06
Filed: 1972-04-14
Abstract: 1382492 Electronic watches EBAUCHES SA 14 April 1972 [20 April 1971] 17283/72 Heading G3T Oscillation of a timepiece balance wheel 6, Fig. 2, is sustained by current pulses through a coil L via an insulated gate field effect transistor 1 (or alternatively of a junction gate FET) which in the embodiment, Fig. 2, conducts each time a capacitor plate 3 carried by the wheel, coincides with a stationary capacitor plate 4. Alternatively, the plate 3 (or plate 4) may be replaced by an "electret" (which produces a permanent electric field). An ionizing element, e.g. in the form of a paint, may be provided to ionize the air between plates 3, 4. There may be a plurality of pairs of capacitor plates forming capacitors connected in parallel. The balance wheel carries a cruciform core 7, Fig. 4, which co-operates with a stationary core 11 carrying the coil L. It is arranged that transistor 1 is fully conductive when 3 and 4 coincide and remains conducting after 3 leaves 4, and is arranged to cut-off (by proper selection of values of a resistor R and capacitor 3, 4) not later than the point in the oscillation of the wheel at which the ends of arms 7a, 7c for example coincide with stationary poles 8, 9 (as illustrated) Fig. 6 (not shown). Alternatively FET 1 may be incorporated in a self-excited oscillator circuit (not illustrated) (e.g. a multi-vibrator) the frequency of which is substantially equal to that of the balance wheel, the oscillator being synchronized by control signals from the control element e.g. 3, 4. The capacitor 3, 4 may be formed by the surfaces of the moving and stationary magnetic poles suitably insulated from the remainder of the timepiece.
Patent GB-953584-A (GB)
Title: Sheet materials conveying and processing apparatus
IPC: G03D3/13
Filed: 1961-05-11
Abstract: 953,584. Feeding sheets and webs. PAKO CORPORATION. May 11, 1961 [May 11, 1960], No. 17300/61. Heading B6B. [Also in Division G2] In apparatus for conveying flexible sheet material, pairs of opposed contacting rollers are provided, the rollers in each pair being of unequal diameters, and so disposed that the leading edge of a sheet, after emerging from between one pair of rollers, advances to abut against the larger roller of the following pair, and is directed by the rotation of the same towards the nip of said following pair. The embodiment shown is a film-processing apparatus, comprising a sequence of tanks 26, 27 &c., of which the first, 26, is shown in detail. Each of the tanks contains a processing unit B, C &c. The unit B is built up between two end plates such as 42, spaced apart by transverse rods, and removably supported on frame members of the main housing. The unit comprises four main rollers 57, 58, 59, 60, arranged vertically one above the other, spaced apart, and mounted on shafts 62. Associated with these are smaller rollers 63, 64, 65, mounted on shafts 66. The shafts engage in slots 68 in the end plates 42, and are urged by springs or rubber bands to bring the smaller rollers into contact with the main rollers. The photo-sensitive sheet 70 to be developed is fed into the apparatus through a hole 211 in wall 205, from a dark room to the left of the wall, and passes first into a feed section F, mounted above tank 26, and is guided round feed roller 104 by smaller rollers 118, 119 and a guide member 111, into tank 26. The shaft 116 of roller 119 is slightly higher than shaft 105 of roller 104, so that as the leading edge 71 of sheet 70 emerges downwards from between them, instead of being quite vertical, it is canted slightly to one side, as shown in dotted lines. This causes it to impinge against the larger roller 57 of the next pair, and, as roller 57 rotates anticlockwise, the leading edge is carried into the nip between rollers 57 and 63. Spindle 66 of roller 63 is slightly below spindle 62 of roller 57, so that the sheet 70, as it emerges below the rollers, is similarly canted towards the larger roller 58 of the next pair. The process is repeated until the sheet passes between the lowest pair of rollers 60, 63. It is now carried round the lowest main roller 60 by an auxiliary roller 83 and two corrugated guides 85, 82 to pass up the other side. Here, it passes between four more roller pairs 60-65, 59-65, 58-65 and 57-64, all so disposed as to give the canted guided arrangement previously described. The last pair of rollers cants the sheet the other way, and it passes into a transfer unit G somewhat similarly constructed to feed unit F, which reverses the direction of motion once more and guides it down into the next tank 27. The three subsequent tanks and the processing units therein are all similar to tank 26 and unit B, and the film sheet is finally delivered into a drier.
Patent GB-589558-A (GB)
Title: Improvements relating to magnetic separators
IPC: B03C1/28
Filed: 1944-09-11
Abstract: 589,558. Magnetic separators. RICHARDSON, H. G. Sept. 11, 1944, No. 17315. [Class 72] [Also in Group XXXV] To enable the periodic removal of the magnetic particles adhering to the poles situated above a magnet or magnets and forming the floor of a shoot or duct over which the materials flow the magnet or magnets and the pole pieces are relatively slidable by hand in a lateral direction so that while some of the poles are stationary over the magnets, the others occupy stationary out of service positions so that the accumulated magnetic particles can be removed. Two sets of poles a<SP>1</SP> comprising an iron bar separated by non-magnetic material c form the floor of the shoot b arranged over permanent magnets a and are separated by a bar d of non- magnetic material. The poles a' are carried by a frame e movable transversely in guides f by a rack g engaging a pinion h on a shaft i operable by a hand wheel k. Electromagnets may be used instead of permanent magnets and transverse strips m may be mounted over the poles to form a serrated base or floor in the duct b. Instead of two sets of poles alone set may be used so that one half of them are in action while the other half are out of action. The magnets may be moved instead of the poles a.
Patent GB-574971-A (GB)
Title: Improvements in or relating to the manufacture of transparent products
IPC: C08L23/28
Filed: 1940-12-06
Abstract: Sheets, films, tubes and rods, which are stiff, flexible and transparent, are manufactured by known methods of film-formation, cutting, compression moulding, extrusion or calendering from a composition comprising a material obtained by chorinating a normally solid ethylene polymer at a temperature below 60 DEG  C. to a chlorine content of 35 to 70 per cent by weight.  Plasticizers, lubricants or finishing agents, e.g. tricresyl phosphate, dibutyl phthalate, n-propyl stearate, ethyl palmitate, butyl acetyl ricinoleate, chlorinated paraffin wax, and phenyl glycide ether, and agents which inhibit the adverse effects of light and heat, may be incorporated in the composition; ethylene oxide derivatives such as phenyl glycide ether and b -naphthyl glycide ether are specified as stabilizers against the action of heat.  In examples: (1) polymerized ethylene is chlorinated in suspension in carbon tetrachloride to give a product containing 55 per cent by weight of chlorine, and a sheet is prepared by rolling the product and pressing between metal plates; (2) sheets are prepared by rolling and press polishing a mixture of a chlorinated polymerized ethylene containing 65 per cent of chlorine, tricresyl phosphate, b -naphthyl glycide ether and salol; (3) a block is compression moulded from a mixture of a chlorinated polymer of ethylene containing 45 per cent of chlorine, salol, and phenyl glycide ether, thin sheets being then sliced from the block and press polished; (4) a chlorinated polymerized ethylene containing 40 per cent chlorine is mixed on heated rolls with butyl phthalate, ethyl palmitate, phenyl glycide ether and phenyl salicylate, and strips or granules of the product are extruded to form a tube or rod. Specifications 481,515, 519,422 and 538,871 are referred to.
Patent GB-1236014-A (GB)
Title: Heat exchangers
Inventor: PATTEN THOMAS DIERY
IPC: F28D9/00
Filed: 1967-04-14
Abstract: 1,236,014. Plate type heat exchangers. NATIONAL RESEARCH DEVELOPMENT CORP. 10 April, 1968 [14 April, 1967], No. 17365/67. Heading F4S. In a heat exchanger matrix comprising a plurality of stacked metal or ceramic plates, each plate 1 is embossed with rows of regularly spaced four-sided pyramidal projections and indentations having crests 2, 3 respectively. The matrix shown in Fig. 3 is formed from two series of plates, viz. deep and shallow plates, having pyramidal projections of different apex angles and which together define first and second fluid channels 16, 19. In another arrangement (Figs. 5, 6, not shown) pairs of shallow plates defining therebetween first fluid channels are spaced apart by interposed deep plates which constitute secondary heat exchange surfaces in the second fluid flow channels defined between adjacent pairs of shallow plates. In a further arrangement (Figs. 9-12, not shown) the matrix comprises deep plates of the type shown in Fig. 1 alternating with another type of plate (Fig. 7, not shown) having similar shaped four-sided pyramidal projections and indentations, but wherein the base sides of all the projections lie substantially in a common plane and provide the crests of furrow-shaped indentations. The projections and indentations may have flat-topped crests to facilitate spot welding together adjacent plates at the points of contact. The description states that the projections may comprise three-sided pyramids.
Patent GB-1093267-A (GB)
Title: Protective device for pipe ends
IPC: B65D59/00
Filed: 1965-04-24
Abstract: 1,093,267. Protectors for pipe ends. J. L. INSHAW. May 16, 1966 [April 24, 1965], No. 17391/65. Heading B8C. A protector for pipe ends particularly for flanged pipes comprisesa tapered spigot (3) (Fig. 1, not shown) co-axially attached to the concave surface of a menisius-shaped, non- metallic, flexible disc (1) so that on inserting the spigot into the pipe end, the disc lies against the flange face of the pipe. As described, the disc (1) decreases progressively in thickness from the centre to the rim and the spigot (3) is partially hollow, the opening being at either end of the spigot.
Patent GB-563243-A (GB)
Title: Improvements in or relating to lifting jacks
IPC: B66F5/04
Filed: 1942-12-11
Abstract: 563,243. Lifting-jacks. EVERSURE ACCESSORIES, Ltd., and VENNER, D. V. Dec. 11, 1942, No. 17679. [Class 78 (iii)] An hydraulic lifting-jack comprises a frame with an hydraulic pressure device mounted therein co-operating with a member slidably mounted in the frame and coupled by a link to a tail piece on the lifting arm so that the operation of the ram pivots the arm outwardly from the frame. The Figure shows an arrangement in which the hydraulic pressure cylinder is mounted between two side frame members 1 and operates a slide 8 sliding in slots 9. Links 14 couple the slide 8 to the tail piece 13 of the lifting arm 12. The arm may be returned by a rod and spring 11. Specifications 478,740 and 479,284 are referred to.
Patent GB-1291048-A (GB)
Title: A livestock identification tag
Inventor: RITCHEY EUGENE BERNARD
IPC: A01K11/00
Filed: 1970-04-14
Abstract: 1291048 Animal ear tags E B RITCHEY 14 April 1970 17822/70 Headings B8F and F35 An animal ear tag comprises a label portion 20', a neck portion 24' and a resilient triangular head portion 26', the head portion being foldable to permit threading through a slit in an animal's ear, the tag being attachable to the animal by means of an insertion member 40 having a tube for receiving the folded head portion of the tag and a flattened spike 41 sharpened to pierce the animal's ear. In operation, the head portion 26' is folded and inserted into the tube of the insertion member 40, the insertion member is pushed through the animal's ear until the tag is pulled partially through the ear so that the head portion 26' and label portion 20' are on opposite sides thereof, and the insertion member is detached from the tag to permit the head portion to unfold and prevent removal of the tag. The tag is injection moulded from polyurethane.
Patent GB-812295-A (GB)
Title: Improvements in or relating to processes for the manufacture of sintered bodies having soft magnetic properties
IPC: C22C32/00
Filed: 1956-06-08
Abstract: 812,295. Powder metallurgy. SIEMENSSCHUCKERTWERKE A. G. June 8, 1956 [June 8, 1955], No. 17874/56. Class 82(1) [Also in Group XXXV] A process for producing a sintered body of soft magnetic-properties, high permeability and low eddy-current loss comprises adding to a metal or alloy powder of soft magnetic properties and high permeability an insulating material consisting of a mixture of at least two insulating materials in colloidal form which react chemically with each other under subsequent sintering conditions. Iron and silcon-containing iron are particularly suitable metals; colloidal mixtures of alummia and silica or magnesia and silica in amylacetate, water, &c., are preferred insulating materials, used in a proportion of 0.5 to 10 per cent by weight. In an example soft iron powder of mean grain size about 0.3 mm., or as wafershaped particles up to more than 1 mm. long and wide and 50# thick, is mixed in amylacetate containing colloidal alumina and silica in suspension. The amylacetate is evaporated off and the powder pressed in a mould, the alumina and silica together amounting to about 2 per cent of the weight of the powder. The compact is then pre-sintered in vacuo or in hydrogen at 900‹ to 1100‹C.; either cold compacted under 6-8 tons per sq. cm. or hot compacted at 600‹ to 800‹C. under 2-6 tons per sq. cm., sintered in vacuo or in hydrogen at 900‹ to 1300‹C., and cooled slowly. The compacting pressure p is applied, as shown in the drawing, in a direction perpendicular to the subsequent magnetic flux application. The metal particles are preferably wafer-shaped and comprise a mixture of iron containing 4 to 6 per cent combined silicon, and 20 to 40 per cent iron powder. The colloidal particles should be of the order of 10-6 mm. in size. The metal particles may be surface oxidized by pre-heating in an oxygen or steam-containing atmosphere.
Patent GB-574002-A (GB)
Title: An improved firing arch for furnaces
IPC: F23M5/02
Filed: 1943-10-29
Abstract: 574,002. Ignition arches. AKT.-GES. BROWN, BOVERI, & CIE. Oct. 29, 1943, No. 17932. Convention date, Nov. 19, 1942. [Class 51 (i)] The ignition arch of a pressure-fired furnace employing powdered fuel consists of metallic elements of a thickness sufficient to maintain incandescence on the face thereof nearest the firing zone, the elements on 'the side remote from the firing zone being cooled by a cooling medium. As shown, the arch 3 is of annular form, provided with ribs and divided into sections. Cooling water may be circulated through grooves 4. Combustion air entering at 6 passes under the control of valves 7, 8 directly to the burner end of the arch and to the outer end of the arch, by way of passages 9, 10, 11 respectively.
Patent GB-808858-A (GB)
Title: Improvements in and relating to dynamoelectric machines
IPC: H02K3/28
Filed: 1956-06-11
Abstract: 808,858. Winding layouts for A.C. generators. GENERAL ELECTRIC CO. June 11, 1956 [June 10, 1955], No. 17970/56. Class 35. The conductor-voltage to earth in a polyphase alternator is approximately halved by earthing the centre of each phase belt A<SP>1</SP>, A<SP>11</SP> and taking load from either end. As shown, the phase-belts are congruently arranged under the poles so that their end terminals may be connected together, and centre-tappings N<SP>1</SP>, N<SP>11</SP> may also be connected together to a neutral conductor NC which may be earthed through a choke 66. The six-phase output from the machine is fed to an output transformer having a special primary winding 22, 32, 42, the secondary winding 23, 33, 43 being connected to the line. A modification is described in which phasebelt A<SP>11</SP> is reversed so that all the connections are at the same end of the machine. In this case the intermediate voltages of the phase-belts are not congruent so that only one may be centre-tapped to the neutral conductor, the ends being interconnected as before. Each phase may consist of three, five, or other odd number of series-connected phase belts, of which the centre one is centre-tapped to neutral.
Patent GB-827025-A (GB)
Title: Improvements in or relating to intercommunication passages for railway coaches
IPC: B61D17/20
Filed: 1957-06-06
Abstract: 827,025. Communication platforms for railway vehicles. SCHWEIZERISCHE INDUSTRIE-GESELLSCHAFT. June 6, 1957 [June 7, 1956], No. 18098/57. Class 103(4) An intercommunication passage in the form of a rigid tubular portion 3 is attached to railway coaches 1, 2 by means of a lever system in such a manner that sealing elements 23, 24, 25, disposed between the portion 3 and the walls of the coaches, are loaded by forces originating only from the relative movements of the portion 3 and the coaches 1, 2, inertia forces being taken by the level system. Said relative movements are readily determinable from the relative position of the coaches 1, 2 as they traverse the tracks. The portion 3 is carried on a ball joint 4 by a yoke 5 connected to the coaches 1 and 2 by levers 6 and 7, and the portion 3 is also connected below to the coaches 1 and 2 by means of links 17, 18, supported on brackets 19, 20, and above by means of links 13, 14 attached to a two-armed lever 12 carried by a pin 11 on the portion 3. The connections between the yoke 5 and the levers 6, 7 and between the links 17, 18 and the brackets 19, 20 are provided with resilient inserts which permit limited universal movement. The portion 3 and the lever system may be constructed as a unit provided with two end frames which carry the lever system and the sealing elements and is inserted into corresponding openings in the coaches.
Patent GB-645772-A (GB)
Title: Improvements relating to detachable luggage racks for vehicles
IPC: B60R9/058
Filed: 1948-07-07
Abstract: 645,772. Vehicle luggage racks. HOORN, P. H. C. VAN. July 7, 1948, No. 18207. [Class 103(ii)] A roof luggage rack for a road vehicle of the kind furnished with oppositely-disposed securing devices mounted on two opposite sides of the rack and which have parts adapted to engage the roof guttering of the vehicle is held in position by tension applied through one or more pairs of adjustable strainer rods universally pivoted to the rack by one end and engaging through clips adjustably mounted on them the roof guttering on opposite sides of the vehicle. The rack, which is provided with universally mounted rubber supporting pads 1, comprises end rails 7, 9 and side rails 8, 10 to the lower members of which are connected longitudinally spaced luggage supporting rails 11 formed transversely in an inverted V-shape and connected at their apices by members 13. Intermediate its ends each side rail is provided with a yoke 15 free to pivot on a vertical axis and to which is pivoted on a horizontal axis one end 18 of a strainer rod 16. The other end of the rod 16 is threaded and provided with a clip 19 urged into engagement with the roof gutter 20 by a knurled nut 17.
Patent GB-1489793-A (GB)
Title: Process for preparing panchromatically-sensitive zinc oxide
IPC: H01L31/08
Filed: 1975-05-02
Abstract: 1489793 Panchromatic ZnO OCE-VAN DER GRINTEN NV 2 May 1975 [3 May 1974] 18474/75 Heading ClA [Also in Division G2] Panchromatically sensitive ZnO containing N atoms in the lattice is prepared by (a) agitating and heating finely divided ZnO below 145 C. in NH 3  or CO 2  gas and the, (b) heating the product of (a) at 190 to 350 C. to constant weight. Step (a) is carried out for such a time that the ZnO product of (b) has a moisture sensitivity such that upon charging to a maximum potential a photoconductive layer of the ZnO and binder (in a 7 : 1 wt. ratio), the binder being moisture insensitive and having a resistivity of 10<SP>13</SP> ohm. cm., the layer requires at least 25 sec. to halve the potential, with the layer being applied to a conductive support and held in the dark in air at 40 C. and at a dew point of 28 C. In step (a) the ZnO may be agitated by a stirrer, a conveyer spiral or a fluidized bed. Suitable binders are polystyrene polyacrylic, polymethacrylic esters, chlorinated rubber vinyl polymers (e.g. polyvinyl acetate and polyvinyl chloride), cellulosic esters and ethers, alkyl resins, epoxy resins, silicone resins along with copolymers and mixtures of these binders. The panchromatically sensitive ZnO may be further sensitized with organic dyestuffs and used in electrophotography (see Division G2).
Patent GB-298285-A (GB)
Title: Improvements in and relating to coke ovens
IPC: C10B5/12
Filed: 1927-07-14
Abstract: 298,285. Simon-Carves, Ltd., and Brown, J. H. July 14, 1927. Coke ovens.-In a coke oven having transverse regenerators and vertical flues opening at their upper ends into horizontal distributing channels, each gas burner or small group of burners is supplied with air through a valve controlled pipe communicating directly with the atmosphere. In the construction shown for an oven having a regenerator chamber 1 associated with each heating-flue, the air inlet to each regenerator chamber consists of a pipe 5 extending downwards through the roof of the arch beneath the regenerators and fitted with a control valve 7. The air inlet pipe passes through and is separate and distinct from the waste gas outlet flue. The valves 7 for two associated groups of air inlets are connected by chains 8 to an operating-rod 9 in such manner that, when the valves 7<b> of one group are opened, the valves 7a of the complementary group are allowed to close, and vice versa. The air valves are preferably actuated by the gas reversing mechanism. Specification 175,312 is referred to.
Patent GB-613628-A (GB)
Title: Improvements in or relating to ironing machines
IPC: C14B1/44
Filed: 1946-06-21
Abstract: 613,628. Ironing-machines. HARROLD LEATHER MANUFACTURING CO., LTD. (Slocomb Corporation, F. F.). June 21, 1946, No. 18657. [Classes 42(i), 76 and 138(ii] An ironing machine, primarily for leather, comprises a rock shaft 2, a heated roll 9 mounted in bearings 10, a press roll 11 carried by bearings 14, 15 detachably mounted on radial arms 16, 17 carried by the rock shaft, means to rock the shaft to bring the press roll into engagement with the first roll and to cushion the impact, and means to vary the position of one radial arm with respect to the other. The rocking means comprises an arm 52 secured to shaft 2, and connected to the piston rod 53 of a ram 56. The piston is formed with sleeves 57 which co-operate with bores 58 in the ends of the cylinder 56 to give the desired cushioning effect. The piston is actuated by air, etc., supplied through one or the other of pipes 63, 64 from distributer 61 under the control of pedal 62. A pressure reducing valve 60 and gauge 65 are shown. The bearing 14 is mounted on a pin carried by arm 16, the pin being securable to the bearing and arm by set screws. The other bearing 15 is likewise secured to a pin carried by arm 29, this arm being however loosely mounted on the shaft 2, but adapted to be secured against rotation and in any limited angular position, by clamping to a fixed sleeve 34 by means of set screws 43, and bolts 38 passing through arcuate slots in the sleeve. Roll 11 is preferably rubber-covered. The trunnions 8 of roll 9 are hollow to accommodate a tube 45 which carries spiders 49 supporting heating elements 50. A thermostatically controlled switch may be mounted near the surface of roll 9. The rolls are driven by motor 76 through the gearing shown, the ratio of which may be varied. Preferably, roll 9 is rotated at a faster rate than roll 11. The latter may be protected by a plate 11a, and the bite between the two rolls by a bar 77. The rock shaft is supported by arm 67 and the bolts 69.