baber/WOPTO huggingface dataset:
Patent GB-403785-A (GB)
Title: Means of supporting moveable floors, platforms, base plates and the like
IPC: A47B3/12
Filed: 1932-10-06
Abstract: 403,785. Seats. MARTIN, W. B., 9, Stafford Road, Sidcup, Kent. Oct. 6, 1932, No. 27797. [Class 52 (ii).] A platform is supported by relatively inclined bars L which pass through apertures in the platform or through stirrups S secured to the edges of the platform, opposite edges of the stirrups pressing opposite sides of the bars. One side of each stirrup may be made easily detachable from the platform and to increase the grip of the platform on the bars, the latter may be notched or covered with felt.
Patent GB-1260544-A (GB)
Title: Method for manufacturing semiconductor device
IPC: H01L21/316
Filed: 1969-06-02
Abstract: 1,260,544. Semi-conductor devices. MATSUSHITA ELECTRONICS CORP. 2 June, 1969 [5 June, 1968], No. 27856/69. Heading H1K. An IGFET is produced on a substrate of one conductivity type by forming a surface layer of the opposite conductivity type, removing the surface layer except for those portions which are to form the source and drain regions, and forming an insulating film on the exposed surface of the substrate. A double gate IGFET is produced by diffusing As into the surface of a P-type Si substrate (1) to form an N-type surface layer (2), Fig. 1 (not shown), thermally oxidizing in an atmosphere of wet oxygen to produce a thick oxide layer (3) on the surface, Fig. 2 (not shown), photomasking and etching to remove the thick oxide layer and the underlying parts of the N-type surface layer except for three islands, Fig. 3 (not shown), forming a thin oxide layer (11, 12, 13, 14) on the exposed surface of the substrate (1), Fig. 4 (not shown), and removing parts of the thick oxide layer over the outer N-type islands, Fig. 5 (not shown). A layer of Al is then deposited over the surface and is selectively removed to provide areas 16 and 19 contacting the two outer N-type islands 20 and 22 which form the source and drain regions, and two gate electrode areas 17 and 18 overlying the thin insulating layers 12, 13, Fig. 6. The central N-type island 21 is not provided with a contact and merely connects the two channel sections together. The thick insulating layers 9, 7, 9 allow the gate electrode to overlap the source, drain and central island regions without introducing excessive capacitance. The substrate 1 is secured to a header, the electrodes are connected to lead-out wires by thin wires, and the device is capped. In modifications, the N-type surface layer is etched to form the islands before the formation of the thick insulating layer which is then etched to the required shape, Figs. 7 to 10 (not shown). Heat treatments may be provided after the formation of the thin oxide layer to improve the stability of the device and after deposition of the Al layer to improve its adhesion. The invention may be applied to single or multi-gate FETs and a plurality of devices may be integrated in a single substrate.
Patent GB-279435-A (GB)
Abstract: 279,435. Zeiss, C., [Firm of]. Oct. 23, 1926, [Convention date]. Lens fittings.-A hood for objectives whose mounts b project from the lens panel a comprises a bell-shaped rigid body f, Fig. 1, whose narrow end may be slipped over the front part c of the mount, and whose height g is such that, when the hood f is removed and replaced in reversed position, the whole of the projecting part of the mount is protected by the hood from injury. The hood may be made of metal, vulcanite, vulcanized fibre, &c. The Specification as open to inspection under Sect. 91 (3) (a) describes also a hood h, Fig. 4 (Cancelled), of flexible material such as rubber, which is adapted to be folded back, without removal from the mount c, from the forwardly-extending operative position into the closed position shown in which it protects the lens mount. This subject-matter does not appear in the Specification as accepted.
Patent GB-1500664-A (GB)
Title: Supply circuit for television receivers
IPC: H02H3/02
Filed: 1976-07-06
Abstract: 1500664 Overload cut-out arrangements in television power supply circuits INTERNATIONAL STANDARD ELECTRIC CORP 6 July 1976 [8 July 1975] 27983/76 Heading H2F In a power supply circuit for a television receiver including a controlled semi-conductor switch or thyristor Th for interrupting the supply current iA in the event of overloads in the scanning circuits, a control pulse derived from the line scan pulses being for this purpose applied to the gate electrode of the switch, and in which the switch is by-passed by a resistor R9 for allowing sufficient current to flow to the scanning circuits for producing a control pulse sufficient to operate the switch during the starting phase, a signal, which is out of phase with respect to the wave form of the voltage VA at the input, e.g. from a rectifier G.R., to the thyristors, is applied to the gate electrode of the switch Th to modify the current iG flowing thereto, such as to avoid firing of the thyristor Th in the starting phase at a time when the voltage UA is at a maximum. The signal may be produced in various ways. In Fig. 2a, a resistor R31 connected between point 3 in a smoothing circuit C3, R4, C4 and point 4 in the circuit of the gate electrode replaces the biasing resistor (R3, Fig. 1a, not shown) in a known circuit where it would be connected between points 2 and 4. The phase change introduced by the smoothing circuit is thereby applied to the current iG. Resistor R31 may be replaced by a capacitor (C5, Fig. 3, not shown) in which case a biasing resistor (R3) is also used. Alternatively, various circuits may be used between points 1 and 4, such as a circuit for sharpening the waveform appearing at point 1 to change the phase of its peak, a phase inverter, Fig. 4b, or a transformer (Fig. 5, not shown), connected such as to act substantially as a phase inverter.
Patent GB-503928-A (GB)
Title: Improvements in or relating to meat tendering apparatus
IPC: A22C9/00
Filed: 1937-10-14
Abstract: 503,928. Tendering meat. DIETZ, J. P. M. Oct. 14, 1937, No. 28001. [Class 28 (ii)] In a meat-tendering apparatus, the knifeguiding grid is arranged to tilt on its guides, when the knives are raised, and thus to become bound against upward movement until the knives leave the meat, when means connecting the knives and the grid operate to free the grid for upward movement with the knives. Two guide rods 6 are secured in bosses 5 and lugs 4 on the base 2 and standards 3, and the knife-carrying casting 8 and the casting 18 carrying the grid are provided with sleeves 9, 19 slidable on the rods. The sleeves 9 are long to prevent tilting of the casting 8 and the sleeves 19 are relatively short to permit tilting of the casting 18 and consequent binding on the rods 6. The casting 18 carries a pair of studs 26 which pass through holes in the casting 8, so that when the knives are raised, the grid is suspended from the knife assembly. The nuts 27, 28 are adjustable. The lever 1 is pivoted at 13 to the casting 8 and its fulcrum 15' is on a link 16 pivoted at 17 to the standards 3. A spring 14 tends to keep the knives raised, and 'the extent of lowering of the knives is determined by nuts 33, 35 on a rod 31 pivoted to the base and passing through an eye-member 32. The upward movement of the knives is limited by a stop 29 against which the casting 18 abuts. The knives are secured in the casting 8 by a part 11 fastened by knurled nuts 12. The guiding grid is in the form of a comb 20, then root part 21 of which is drilled to pass over a pair of studs 22 having knurled retaining nuts 23. The points 24 of the guide bars are tapered to enable them to pass easily between the knives and are bevelled to fit in a recess 25 in the casting 18. In operation, the meat is placed on a slidable and/or rotatable board 30, and the lover 1 is depressed. The grid rests on the meat and the knives project therethrough into the meat. The lever 1 is then raised, and the meat tending to rise tilts the grid which is thus bound on the rods 6. The knives are thus freed from the meat, and the grid remains locked until it is freed by the studs 26 when the nut 27 is engaged by the casting 8.
Patent GB-914229-A (GB)
Title: Radiography apparatus
Inventor: MERAY-HORVATH LORAND
IPC: G21G4/08
Filed: 1959-08-17
Abstract: 914,229. Radiography apparatus. CANADIAN CURTISS-WRIGHT Ltd. Aug. 17, 1959, No. 28056/59. Class 98 (1). [Also in Group XXV] In a radiography apparatus the capsule forming the radiation source is conveyed from a container 13 (Fig. 1) to the operating head 10 and back again by remote control, the head and the container being separate so that they can be placed at a distance from each other; as the capsule enters the head, it engages with retaining means. In the form shown, the motive power is provided by compressed air from a cylinder 18, a control-device 15 enabling the air pressure to be directed via pipe 14 to the container 13 for driving the capsule therefrom through pipe 12 to the head 10, or via pipe 43a to the head 10 for driving the capsule back again. The construction of the head is diagrammatically shown by Figs. 2 and 3, and in more detail by Fig. 4 (not shown). Inside a cylinder 25 moves a piston 26 connected to a tube 27 projecting axially from the cylinder and having a closed end 28. Coaxially within tube 27 is a stationary tube 29. Inside one end of tube 27 are secured inwardly-pointing fingers 64 (see also Fig. 7), biased in that position by springs 67. When control device 15 is operated so as to drive the capsule out of the shielded container 13 (illustrated in detail by Fig. 9, not shown), it enters the head through tube 12 and is propelled to the end tube 29 in the direction Y, Fig. 2, past the spring fingers 64 which close again behind it. Air pressure escaping between tubes 29, 27 back into cylinder 25 drives piston 26 and tube 27 to the right till the fingers abut against the capsule, tending to compress a spring between the capsule and the end cap 28 of the piston tube 27. This spring provides the initial impulse for the capsule on its return journey. When control 15 is operated for said return, compressed air passes directly along pipe 43a into head 10 via fitting 32 (Fig. 3). Piston 25 and tube 27 are driven in the direction Z, so that the spring fingers, by being drawn over the end of stationary tube 29, are caused to open, so allowing the capsule to be spring-impelled in the direction X. On arriving back inside the container, the capsule enters it by a passage which is initially horizontal and then bends round until it is vertical (Fig. 6, not shown). The capsule falls on a spring-loaded plunger, which retracts under the impact, and is held in this position by a catch. When the cycle of operations is to be begun again, this catch is released so that the plunger provides an initial impulse for the capsule. An electrical system is provided including three coloured lamps to indicate visually whether the capsule is in the operating head, or in the storage container, or in transit from one to the other.
Patent GB-1132679-A (GB)
Title: Device for carrying a child or other loads on the back
IPC: A47D13/02
Filed: 1967-06-19
Abstract: 1,132,679. Infant carriers. GERRY DESIGNS Ltd. 19 June, 1967 [15 Dec., 1966], No. 28101/67. Heading A3V. [Also in Division A4] A device for carrying a child on the back comprises a rigid frame 15 with a sling for the child and triangular shaped shoulder straps 33. The frame is preferably made of aluminium alloy and the sling is light canvas. The sling has a tubular seam 18 which is sewn around the frame crossmember 19 at the front of the frame and attached by straps 25, 27 to the rear of the frame. Leg holes are provided in the sling and an outer casing 12 is provided around the sling with aligned leg holes 30. The base of the frame has feet 22 which are joined by a curved metal cross-member 13 and a fabric band 14, Fig. 7 (not shown). The shoulder straps 33 are secured to the seam 18 along the whole width of the frame and secured to each other at 40. In an alternative embodiment, Fig. 11 (not shown), the two straps are integral. Each strap has a canvas envelope (34), (35), Fig. 8 (not shown), with a padded interior. The device is stable for a child sitting or standing.
Patent GB-752744-A (GB)
Title: Improvements relating to means for damping the rolling movement of ships
IPC: B63B39/06
Filed: 1954-09-29
Abstract: 752,744. Stabilizing ships. SUBERKRUB, F. A. Sept. 29, 1954, No. 28106/54. Class 113. In a device for damping the rolling movement of ships comprising extensible and retractable foils or stabilizers 1 each rotatably mounted on two movable transverse members 3, 4, a separate driving means is provided for rotating each stabilizer and is extended and retracted with its associated stabilizer. The stabilizer 1 fixed to the shaft 2 rotatably mounted in the transverse members 3, 4 guided on rails 5, 6 is moved in and out relative to the ship's side 7 by known means. The rotating means shown in Fig. 3 comprises a lever 11 fixed on the shaft 2 and having a block 12 to which is fixed a rod 13 carrying pistons 14, 15 moving in cylinders 16, 17. The pistons can be operated by steam, compressed air, water or other medium, the supply of which may be effected by valves controlled by a,gyroscope.
Patent GB-1058415-A (GB)
Title: Improvements in presses for diecasting, injection moulding and the like
IPC: B29C45/68
Filed: 1963-07-16
Abstract: 1,058,415. Casting machines. V. VON REIMER and Q. GNUTTI. July 16, 1963 [July 16, 1962; May 10, 1963], No. 28108/63. Heading B3F. [Also in Division B5] In an injection moulding, or die casting machine, any play between the prime mover and the secondary mover, which play causes loss in pressure, is overcome by a compensating device located between said movers. As shown in the Figure a press comprises co-operating dies, one mounted upon a fixed plate (1) and the other upon a carriage 9, 2, reciprocable along columns (4) attached to the fixed plate. Play compensating devices each comprising outer wedges 18, 15 and a co-operating central wedge (16) (not shown) are located between the members 9 and 2 of the movable carriage. The wedges are contained in members 18 slidable in member 2, and located between the members 18 and the rear of the front face of the member 2 are toggles 19 forming the secondary movers. In operation the carriage 9, 2 is forwarded by the prime mover (an hydraulic or pneumatic ram or an electromagnetic device) to close the dies after which the member 9 is clamped to the columns by a suitable device. The wedges are then operated so that the outer wedges bear against slide 18 and member 9 thus preventing play therebetween. The toggle mechanisms are then actuated to facilitate full closure and operating pressure. In an alternative embodiment the secondary movers may be double levers (Figs. 5 and 6, not shown).
Patent GB-298086-A (GB)
Title: Improvements in photographic film cartridges
IPC: G03C3/00
Filed: 1928-10-01
Abstract: 298,086. I. G. Farbenindustrie Akt.- Ges. Sept. 30, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. A roll film cartridge comprises a hollow body which cannot . be opened without destroying the cartridge, said body having a slot which extends from. the hollow interior to the outside of the body and is adapted for the introduction or withdrawal in light-tight manner of a film which coils upon itself in the hollow interior. As shown, the cartridge comprises a wooden block 1 having a cylindrical boring 3, a recess 2 in its upper face, and a slot 8 extending from one upper edge tangentially into the boring. The lower face of this slot is provided with a velvet strip. Through the slot 8 passes a film guiding-member 11 provided with a velvet strip in contact with the strip on the face of the slot, the inner end of the guide having resilient curled fingers 10 within which a. film 17 inserted through the slot is caused to coil upon itself, and the outer end 13 of the guide being folded back over the top of the block so as partially to cover the recess 2 and to form therewith a fingernail hold for lifting the cartridge out of the camera. The block is closed by end plates 15, preferably of metal, which are glued on or have edge flanges which are driven into the ends of the block. Adjacent the slot 8 the corners of these plates are extended as at 16 and turned over to close the ends of the slot and to hold down the flap 13 of the guide member 11. Before assembling the parts therein, the block is dipped into a solution preferably of silicate of soda containing an inert colouring substiance such as lamp black in order to seal the pores of the block and prevent ingress of light.
Patent GB-613039-A (GB)
Title: Improvements in or relating to an electrical socket
IPC: H01R33/76
Filed: 1945-10-25
Abstract: 613,039. Holders for discharge tubes. SCHMITT, A. J. Oct. 25, 1945, No. 28160. Convention date, April 25. [Class 38 (i)] In means for mounting a valve socket in a hole 14 in a plate 10, the socket body 15 is formed of resilient material and has annular shoulders 20, 25 formed thereon which snap against the upper and underneath surfaces respectively of the plate, the latter shoulder comprising co-operating truncated conical surfaces 26, 29 serving as cams to facilitate mounting and dismounting the body. Socket contacts 13 are accommodated in axial passages 17 in the body which are reduced at their lower ends 17a to pass the contact tails 13b, the latter then being bent over as at 13a. A locating rib 30, which may be wedge-shaped, is provided on the body, said rib engaging a groove 31 in the plate and the undersurface 27 of the body may have barrier 34 located between the contact tails. A central hole 16 is provided in the body for receiving the pilot pin on a discharge tube cap. This hole may house a grounding sleeve. The Specification as open to inspection under Sect. 91 also refers to the use of a pin in the hole 16, no other metallic members then being carried by the body in which case it may function as a jack. This subject-matter does not appear in the Specification as accepted.
Patent GB-677698-A (GB)
Title: Improvements in centrifugal separators of the direct drive type
IPC: B04B9/12
Filed: 1950-11-17
Abstract: 677,698. Centrifugal-separators. LAVAL SEPARATOR CO. Nov. 17, 1950 [Nov. 18, 1947], No. 28162/50. Class 23 [Also in Groups XXXII and XXXV] A centrifugal separator comprises a frame 10, a motor 16 in the frame having a vertical bowl support shaft 16c at its upper end, a lower elastic mounting 15 supporting the motor, an axially adjustable device 13 on the frame supporting the mounting, an upper elastic mounting 22 closely engaging the motor, guide means 23 between the frame and the upper mounting permitting axial movement of the upper mounting, interlocking means between one of the mountings and the motor preventing relative rotation therebetween, and interlocking means between the last mentioned mounting and the frame preventing relative rotation therebetween. Projections 22b, 22d on the upper mounting engage grooves in the motor and guide means respectively, and the guide means has a pin 24 engaging a slot in the frame. A clearance 22c is provided between the guide means and the upper mounting, and clearances 17, 18 are provided between the lower mounting and a support cup 14.
Patent GB-1031451-A (GB)
Title: Controlled rectifiers
Inventor: MILLINGTON DAVID EVERITT
IPC: H01L29/744
Filed: 1961-08-03
Abstract: 1,031,451. Semi-conductor devices. JOSEPH LUCAS (INDUSTRIES) Ltd. July 18, 1962 [Aug. 3, 1961], No. 28196/61. Heading H1K. A PNPN controlled rectifier has its P-type gate, N-type cathode junction etched to increase the breakdown voltage. Manufacturing processes are described in which a 25-50 ohm cm. N-type silicon wafer 11 is etched, subjected to aluminium vapour diffusion to form P-type layers 12, 13; etched; subjected to phosphorus pentoxide to form N-type layers 16, 17, covered by glass 18, 18a; etched to remove 17, 18a and part of layers 16 and 18 and then subjected to boron diffusion to form P+ layers 19, 20. The junction between layers 16 and 20 is masked, the wafer etched to remove glass which formed during the boron diffusion, sand-blasted and nickel-plated to form electrodes to anode 19, cathode 16 and gate 20. The wafer is cut to provide several controller rectifiers, one of the batch being selected for etching treatment which removes the glass over junction 16/20 and part of the junction region, as shown in Fig. 9. During etching, breakdown voltage is tested until the desired breakdown level is reached; the remaining wafers from the sample are then similarly etched for the same time. The etchant consisted of a mixture of nitric, hydrofluoric and glacial acetic acids.
Patent GB-832746-A (GB)
Title: Improvements in or relating to irradiation of starch
IPC: C08B31/18
Filed: 1955-11-08
Abstract: Starch irradiated with 107 to 2 X 108 R. per gram, preferably in the presence of an oxidation catalyst such as vanadium pentoxide, is more soluble than ordinary starch and can be more easily hydrolysed.ALSO:Starch irradiated with 107 to 2x108 R per gram, preferably in the presence of an oxidation catalyst such as vanadium pentoxide, is more soluble than ordinary starch and can be more easily hydrolysed.ALSO:Starch irradiated with 107 to 2 x 108 R per gram, preferably in the presence of an oxidation catalyst such as vanadium pentoxide, is used, e.g. in 1% aqueous solution as a protective coating for foodstuffs, such as biscuits, bread, candies or vegetables, tobacco, wood, &c., or incorporated in dried egg powder and puddings.
Patent GB-461608-A (GB)
Title: Improvements in or relating to current collectors for electric vehicles
IPC: B60L5/08
Filed: 1936-10-19
Abstract: 461,608. Current collectors for electric vehicles. WESTINGHOUSE ELECTRIC & MANUFACTURING CO. Oct. 19, 1936, No. 28372. Convention date, Oct. 23, 1935. [Class 104 (iii)] A current collector comprises a support 30 rotatably mounted in a bracket 13 on the pole head 10, and provided with a curved bearing surface engaged by a curved wear plate 34 on which the collector shoe 15 is removably mounted by a bolt 33 passing through a pin 37 on the plate 34 and through lugs on the shoe 15. By this arrangement, the shoe can rotate with the support 13 about a vertical axis, and independently of the support about a horizontal axis.
Patent GB-649432-A (GB)
Title: A machine for winding electric machine stators
IPC: H02K15/06
Filed: 1948-11-02
Abstract: 649,432. Machines for inserting windings in cores. COMPAGNIE ELECTRO MECANIQUE. Nov. 2, 1948, No. 28404. Convention date, Nov. 7, 1947. [Class 35] In a stator winding machine, the coils are disposed in correspondingly placed slots in a dummy rotor with wedges movable radially outwards to transfer the coils to the stator slots, the wedge movement being due to pressure exerted by a concentric series of sleeves arranged at each end of the rotor coaxially therewith and caused to bear successively with their conical ends on the end portions of the wedges. As shown, the outer sleeve 16 is moved to the right by means, not shown, and carries with it all the sleeves 12-15 until the plunger 19 carried by sleeve 16 slips off the normally stationary cam 23 on to cam 24 thereby releasing sleeve 12 which has already engaged the tapering surface of wedge 7 in the dummy rotor 4 but as the movement continues the four inner sleeves engage the wedge in turn, thereby driving the coils into the stator 3. The sleeves are slotted so that they can be returned by a bolt 34 as sleeve 16 is moved back, the spindle 27 being angularly adjusted to enable the plunger to be reset under cam 23. Specification 639,069 is referred to.