baber/WOPTO huggingface dataset:
Patent GB-1199648-A (GB)
Title: Doping of Silicon Discs for Semi-Conductors
Inventor: SPICAR ERICH GUSTAV
IPC: C30B31/16
Filed: 1967-12-22
Abstract: 1,199,648. Semi-conductor processing. ALLMANNA SVENSKA ELEKTRISKA AB. 22 Dec., 1967 [27 Dec., 1966], No. 58289/67. Heading H1K. Aluminium is diffused into silicon by arranging a row of silicon discs within a quartz tube having an aluminium vaporization source extending along substantially the whole length of the row. The discs may be held in a slotted quartz rod alongside one or more multiplyperforated or longitudinally-slotted quartz or aluminium tubes running the length of the row and each containing aluminium as discrete sources or as a continuous thread. Alternatively, separate containers may be spaced out along the row between discs. In apparatus having discrete sources or effectively discrete sources it is preferred that no more than four discs should come between successive sources.
Patent GB-1192779-A (GB)
Title: Improvements in or relating to Electric Interrupters
IPC: B60Q1/38
Filed: 1967-12-29
Abstract: 1,192,779. Electric interrupters. SWFSPEZIALFABRIK FœR AUTOZUBEHÍR GUSTAV RAU G.m.b.H. 29 Dec., 1967 [4 Feb., 1967], No. 58983/67. Heading H1N. To maintain the frequency of an interrupter constant on rise in energizing current through coil 19 an auxiliary armature 24 is provided which is attracted to polepiece 21 when the current exceeds a predetermined value and thus shunts some of the increased flux away from the contact actuating armature 23. The armature 23 is resiliently mounted on a polepiece 20 and carries a contact 30 co-operating with a fixed contact 31. The auxiliary armature 24 is mounted on a leaf spring 26 and is normally biased against a backstop 27. The armatures 23, 24 move in mutually perpendicular planes. Armature 23 is normally held so that contacts 30, 31 engage by a hot wire 35 connected between armature extension 33 and adjustable arm 37 and acting against a return spring 32. A second contact carrying armature 22 is spring mounted on polepiece 20 and its contacts are normally open. The interrupter is used as a flasher for vehicle direction indicators. When either the right or left indicators are energized separately, current flows through interrupter core 18, armature 23, contacts 30, 31, coil 18 to the indicators. Energization of coil 18 attracts armature 22 causing its contacts to close and complete a circuit through the hot wire 35. On rise in temperature of hot wire 35, spring 32 retracts armature 23 from the polepiece 21, thereby de-energizing the interrupter and the direction indicators. When cool, hot wire 35 returns armature 23 to its initial position and the cycle is repeated. If both left and right indicators are flashed together for warning purposes the current through coil 18 will be doubled (the indicators are in parallel), thereby increasing the attraction of armature 23 and tending to reduce its frequency. However, auxiliary armature 24 is attracted by the increased current and shunts sufficient flux from armature 23 to ensure the frequency remains constant. Several auxiliary armatures may be provided to stabilize the frequency over a wider current range.
Patent GB-1372270-A (GB)
Title: Device for load-responsive control of braking pressuree in motor  vehicles
IPC: B60T8/18
Filed: 1971-12-31
Abstract: 1372270 Load responsive braking systems SAAB-SCANIA AB 31 Dec 1971 [8 Jan 1971] 60983/71 Heading F2F A device responsive to loading of a vehicle, particularly one having three axles, to modify braking pressure comprises a double armed lever 10 horizontally pivoted on an axle 9, one arm 11 of lever 10 being pivoted to a chassis member 2 to which is connected, by means of a bracket 7, a leaf spring 5 of the suspension, the other arm 13 being directly or indirectly connected to a valve 23 located in the braking media line, In the embodiment shown the lever 13 is connected via a rod 14 to an arm 15 rotatably journalled on a member 17 adjoined to a chassis crossmember 3. Differences in load are transferred to arm 15 by lever 10 a set screw 19 transfer ring the resulting arm 15 rotation to a further arm 20 which through springs 22, 27 and rod 24 changes the position of the valve 23. It is stated that by the arrangement the distance between the outer end of lever 11 and the support shaft 6 of spring 5 is maintained constant.
Patent GB-1379884-A (GB)
Title: Handling of biscuits
IPC: B65G47/78
Filed: 1971-12-31
Abstract: 1379884 Batching biscuits BAKER PERKINS DEVELOPMENTS Ltd 8 Dec 1972 [31 Dec 1971] 61021/71 Heading B8S Biscuits to be batched for packing are fed along a conveyer (not shown) to a magazine 2 with a vertical portion 3 where they pass between front and rear clamping plates 15 and between a fixed guide 30 and an adjustable guide 31. The column of biscuits is supported on a platform 36, shown ghosted 36<SP>1</SP> in its upper position, which descends a distance corresponding to the batch required to the full line position shown. At this stage the clamping plates 15 are brought into operation together with a pusher 38 having an upper end defined by a plate 39 having a slightly rounded corner 40. The separation of the batch is controlled by a yieldably mounted member having a rounded engaging surface in the form of a roller 45 (see Fig. 2) which is free to turn and is mounted adjacent the bottom of the guide 31 between a pair of vertical rods 50 also supporting the guide 31. The rods 46 are carried by parallel links 54, 56 pivoted at 55, 57. The end position of the roller 45 shown is controlled by an adjustable stop-bolt 62. Before the start of the movement right to left of the pusher 38 the lowermost part of the roller 45 is just below the top of the pusher 38 and the weight of the parallel linkage is taken by stop 61. When the pusher 38 moves the roller 45 applies a resistance to the movement of the uppermost biscuit through the weight of the parallel linkage. If the feed is sufficiently positive the roller 45 rides up over the biscuit, no longer resisting its movement, but applying downward pressure ensuring its transfer with the rest of the batch. If, however, the feed is insufficient to lift the roller 45 the rounded edge 40 slips under the biscuit which is thus not fed with the batch transferred to container 66 and thence to receptacle 67. Instead of being provided with a rounded corner 40 the operative face of the pusher 38 at its uppermost portion may be formed with receding steps each of vertical thickness slightly greater than the average thickness of a biscuit (not shown). The last few biscuits at the top of a batch automatically register with the steps of the pusher 38 as it moves forward, being pressed against the steps by the action of the roller 45 which is raised progressively by each successive biscuit as it passes under it. The topmost bisucit is thus registered with the final step ensuring clean separation.
Patent GB-1222600-A (GB)
Title: Improvements in gas treating apparatus
IPC: G01N27/64
Filed: 1968-12-23
Abstract: 1,222,600. Gas analysis. GENERAL ELECTRIC CO. Dec.23, 1968 [Dec. 26, 1967], No.61074/68. Heading G1B. A method of determining a chemically reactive gas in a carrier gas e.g. ammonia in air comprises the steps of introducing the gases into a chamber 10 through an inlet 11 and in so doing exposing it to radiation from a radioactive material 15 by an alpha or beta emitter, treating the ionized gases with a reagent vapour, e.g. from a pool of 20% hydrochloric acid to produce condensation nuclei of ammonium chloride and containing the nuclei in a condensation nuclei detector 21 connected to the chamber 10 by way of an outlet 12. The radioactive material which may be a polonium alpha source or a beta source such as Krypton 85 ionses the ammonia entering the chamber 10 and enhances the sensitivity of the process since the detector 21 is more sensitive to ionized particles than to uncharged particles of ammonium chloride. A pump 20 is used to draw the gases through the chamber 10.
Patent GB-1299743-A (GB)
Title: Pressure vessel
Inventor: ALLEWITZ MURRY
IPC: F15B1/16
Filed: 1969-12-18
Abstract: 1299743 Hydraulic accumulators GREER HYDRAULICS Inc 18 Dec 1969 61771/69 Heading F1P [Also in Division F2] The narrow mouth 16 Fig.4 of a hydropneumatic accumulator bladder 14 Fig.2 is bonded to the lower flanged end 21 of a gas charging fitting 17 detachably secured within a cylindrical mounting plug 31 by means of a nut 59 and the plug 31 provides a shoulder 34 Fig.4 of outer diameter less than that of the accumulator casing port 12 and on which is seated metal segments 37 of a locking ring 36, the outer diameter of which segments is greater than the diameter of port 12 whilst the inner diameter of segments 37 is less than the outer diameter of the shoulder 34; the fitting 17, plug 31 bladder 14 and segments 37 which are bonded to a rubber ring 51 being insertable through port 12 into the casing interior. The plug 31 is secured by a nut 63 bearing against sealing rings 56, 58 and fitting 17 has bores 24, 27 provided with a pressure gauge 26 and an inlet valve 29. The rubber ring 51 has a conical lower face 53 against which a portion of the bladder may abut when collapsed.
Patent GB-718478-A (GB)
Abstract: 718,478. Connecting stoves to chimneys. RADIATION, Ltd. Aug. 19, 1953, [Sept. 26, 1952.] No. 24150/52. Class 126. In domestic heating apparatus comprising a self-contained stove or fireplace accommodated in a recess c in a chimney breast, means for connecting the stove to the chimney b consists of a metal plate a, secured across the upper part of the recess c and having therein an elongated aperture d, and a slidable cover plate f adapted to cover the aperture d and formed with a hole to receive the end of a flue pipe e attached to the stove. The cover plate f is adjustably secured to the main plate a by bolts h engaging in holes in the main plate and slots i in the cover plate; a gas-tight joint between the two plates is effected by asbestos cord g contained in channels around the edges of the plate f while a further gas-tight joint between the plate f and the flue pipe e is provided by asbestos cord o housed in a split ring k clamped to the flue pipe by bolts m. To provide for the necessary range of movement of the cover plate f a pocket j is arranged in the brickwork of the chimney breast at one or both sides.
Patent GB-2003384-A (GB)
Title: Bed
IPC: A61G7/05
Filed: 1978-08-09
Abstract: A bed 3 has a movable receptacle 9 for a baby cradle 10. The receptacle 9 is fixed to the bed at or near the foot of the bed. The receptacle 9 comprises a plate 31 pivotable about a vertical axis and carried by telescopic cantilever arms 11, 12 also pivotable about vertical axes so that the plate 31 can move in the directions X, Y, Z, T. <IMAGE>
Patent GB-2028120-A (GB)
Title: Seating platform with sprung edge
IPC: A47C7/02
Filed: 1978-08-15
Abstract: Resiliently deformable support at the front edge of a seat is achieved by providing, in a seating platform having a flexible element 16 stretched between and secured to front and rear sides of a frame (the front side only being shown), a pocket of flexible material 20 formed along the upper side of the front edge of the platform, with a V- section spring 22 disposed in the pocket and having its open jaws facing the front edge of the frame. <IMAGE>
Patent GB-2005916-A (GB)
Title: Low resistivity ohmic contacts for semiconductor devices
IPC: H01L21/28
Filed: 1978-10-04
Abstract: Semiconductor material is doped in the region (17) below the contacts a (14) with n-type and p-type impurities each within two orders of magnitude of the maximum concentration for the semiconductor material, to reduce resistivity. To ensure the desired conductivity type in the region, the concentration of the dominant type impurity is greater than twice that of the opposite type. <IMAGE>
Patent GB-2007696-A (GB)
Title: Polyvinylchloride pipe part having antistatic properties
IPC: F16L9/12
Filed: 1978-10-20
Abstract: A pipe part consists of polyvinylchloride containing 3-12% b.w. of carbon black particles with a B.E.T. of 100-1500 m<2>/g. Preferably chlorinated polyethylene is added to improve impact properties.
Patent GB-2013107-A (GB)
Title: Dye receptive primary backing material
IPC: D05C17/02
Filed: 1978-12-14
Abstract: A tufted carpet product including a woven or non-woven primary backing material, a layer of dyeable foamed or unfoamed compound adhered to the upper surface of said primary backing, rows of yarn elements tufted through the primary backing and the layer of foam compound to form a face of yarn on the upper surface of the primary backing and loop backs on the undersurface of the backing and an adhesive layer on the undersurface of said backing to anchor the loop backs in place and optionally adhere a secondary backing thereto.
Patent GB-2015678-A (GB)
Title: Theft-resistant nut
IPC: F16B23/00
Filed: 1979-01-18
Abstract: A theft-resistant nut (1) is provided with a substantially cylindrical outer surface (2) and single flat (4) or concavity formed thereon. Alternatively, the surface (2) is provided with a plurality of flats (4) or concavities, no two of which are diametrically opposed. A socket 5 having an inner surface 6 matching the outer surface of the nut, e.g. with a flat 7, is used to turn the nut. Preferably the socket has a hexagonal member welded on its rear end, to receive a spanner. <IMAGE>
Patent GB-2043398-A (GB)
Title: Telephone circuitry
IPC: H04M1/31
Filed: 1979-02-27
Abstract: In a telephone set using loop-disconnect dialling, it is desirable to mute the receiver Rx during dialling, and to do this in an electronic set, electronic circuitry is to be preferred for this function as relays tend to be costly. In the present arrangement the receiver Rx is connected to the transmission circuit Tx CCT via two diodes D6, D7. When the set is in the speech mode, direct current flows in the receiver and in these two diodes, which latter are then in their low dynamic impedance state. Hence they have little or no effect on the efficiency of the instrument, unlike certain known circuits. For a period which embraces the loop disconnect impulses of each digit, the direct current is cut off, via Transistor T3 controlled by IC1 so that the diodes D6 and D7 are then in their high dynamic impedance states, so that the receiver is electrically isolated from the transmission circuit, and is therefore muted. <IMAGE>
Patent GB-2021129-A (GB)
Title: Solution polymerized halogenated polyesters
IPC: C08G63/682
Filed: 1978-07-25
Abstract: A process for preparing certain halogenated aromatic polyesters having a predetermined molecular weight is provided. Such polyesters are prepared by solution polymerization of an appropriate bisphenol and diacid halide wherein the diacid halide is added to a solution containing the bisphenol until the viscosity of the resulting polymer containing solution reaches a predetermined solution viscosity limit at which time the further addition of diacid halide is terminated. The solution limit is indicative of the attainment of said predetermined molecular weight. The identification of said solution viscosity limit is achieved by a feedback mechanism wherein the viscosity of the polymer containing solution is monitored or sensed during or after the addition of the diacid halide to the bisphenol containing solution.
Patent GB-2019000-A (GB)
Title: Measurement of Cathodic Protection
IPC: G01N17/02
Filed: 1979-03-19
Abstract: A technique for determining the potential of a metallic structure 1 relative to a surrounding electrolyte, sacrificial anodes being provided for the cathodic protection of the structure, avoids the necessity to on provide special reference electrodes. One of the sacrificial anodes 2 is used as a reference electrode, and the potential difference which exists or would exist between that anode 2 and the structure 1 in a condition of effective electrical isolation of the anode from the structure is determined. A resistor 4 electrically connects that anode 2 to the structure 1 and a D.C. power supply 8 is coupled between the anode 2 and the structure 1. The aforesaid condition is indicated by equality between the current in the resistor 4 and the current from the power supply 8, and from the voltage then measured across the resistor 4 the required relative potential can be determined. In disclosed apparatus a comparator 13 output, generated in response to a comparison between these two currents, controls the D.C. power supply 8 to achieve such equality. <IMAGE>
Patent GB-2019608-A (GB)
Title: Controlling injection moulding
IPC: B29C45/76
Filed: 1979-04-11
Abstract: In a method of and apparatus for controlling the plasticizing process of a resin of an in-line screw- type injection molding machine, the position of the screw (14) is continuously detected in accordance with its movement and a control function is determined on the basis of one of various factors, such as resin heating energy, shearing energy, injection pressure and filling speed, which determine the temperature distribution of the resin to be injected. The operating program, particularly the number of revolutions and the back pressure of the screw, is controlled on the basis of the control function and the screw position so as to make uniform the temperature distribution of the resin. <IMAGE>
Patent GB-2046061-A (GB)
Title: Soil cultivating apparatus
IPC: A01B49/02
Filed: 1979-05-21
Abstract: Apparatus for cultivation of the soil, which is drawn by a tractor, consists of a first working appliance 4 for soil loosening which can be used by itself and which is provided with a supporting frame 3 and to the rear of which a second working appliance 2 is detachably affixed by traction arms 1 in such a way as to be adjustable in height, wherein the arms 1, as viewed from above, are detachably affixed to articulation points 5 situated in front of the frame 3 of the first appliance 4 in a rapidly detachable manner. <IMAGE>
Patent GB-2050873-A (GB)
Title: Glue applicator
IPC: B05C9/14
Filed: 1979-06-08
Abstract: A hot melt glue applicator incorporates a high temperature applicator pot (1), heated by a ring heating element (24), supplied from a lower temperature glue reservoir (18) heated by a strip heating element (23), by means of a reciprocating pump feeding molten glue through passageways (20, 22), excess glue within the pot (1) being returned to the reservoir (18) over a weir (2) [Figure 1] leading from the pot (1). The pump operates synchronously with an applicator member (3) which is moved into the pot (1) and out to apply glue to a carton edge. Continuous supply to the pot (1) is maintained whilst ensuring that the quantity of glue maintained at a high temperature of which degradation can occur is minimised. The supply in the reservoir (18) can be topped-up readily without stopping the machine. <IMAGE>
Patent GB-2051197-A (GB)
Title: Window Mounting Assembly
IPC: E06B3/58
Filed: 1979-06-13
Abstract: A window mounting assembly includes a window frame having four inwardly facing recessed and slotted surfaces 4. Twelve locating clips 10, having jaws 14, are screwed into the frame surfaces 4, and a bedding gasket 30 is wrapped round a double glazed window unit 26. The wrapped unit 26 is rested against the clips 10 and pushed against the frame step 8. A rectangular retainer frame having inclined arms 18 and 20 is aligned with the clips 10, and prongs 24 on the retainer arms 18 are pushed into respective jaws 14 to retain the window unit 26 in position pressed against the frame step 8. <IMAGE>
Patent GB-2054709-A (GB)
Title: In Situ Pile Construction
IPC: E02D27/48
Filed: 1979-07-20
Abstract: A pile-supported concrete slab is constructed by allowing concrete to set around tubular members disposed in the desired pile head positions. Then, working through those slab holes, in situ piles are formed by using an elongate self-propelled soil displacing mole to descend through the subsoil to form holes. In the prior art normally a site was piled first and the slabs cast thereafter, whereas in this invention the slab is formed first and the piles thereafter, thereby obtaining the advantage that the piling work is carried out from a clear level working surface.
Patent GB-2032659-A (GB)
Title: Temperature compensated voltage reference
IPC: G05F3/30
Filed: 1979-09-27
Abstract: The invention relates to a circuit providing a temperature-compensated voltage reference. The circuit comprises a Zener diode 10 serving as the principal voltage source, in combination with a compensating voltage source including transistors Q1 & Q2 and their control circuitry 24. The compensating voltage is summed with the Zener voltage by operational amplifier 14 to produce a reference voltage Vo. The compensating voltage source includes adjustment elements R1 or R2 for trimming the reference output to a specified voltage, and the control circuitry operates with the adjustment elements to automatically produce optimum temperature compensation when the output has been adjusted to the specified value. Thus the output reference and the slope of the output-temperature characteristic (i.e. the temperature coefficient) are simultaneously adjusted by a single adjustment, R1 or R2. <IMAGE>
Patent GB-2061795-A (GB)
Title: Manufacture of slugs or pellets
IPC: B23D33/10
Filed: 1979-10-27
Abstract: A machine (10) for cropping bar stock (25) repetitively into slugs of uniform length comprises a gravity feeder (12) consisting of downwardly inclined tubes (20) which support lengths of bar stock (25) for sliding movement into a shear (11) having a stationary bottom blade (15) and a reciprocally movable top blade (16). Pivotally mounted a set distance in front of the shear (11) is a stop (13, 41) which arrests forwardly sliding bar stock (25) from the feeder and positions the stock while the shear (11) is performing its cutting stroke. The stop is movable by or in conjunction with the repetitive action of the shear (11) and is arranged to return to a stopping position whenever the shear (11) opens after a cutting stroke. <IMAGE>
Patent GB-2039729-A (GB)
Title: A convertible table
IPC: A63D15/04
Filed: 1979-11-20
Abstract: A composite table usable as a dining/boardroom table or as a billiard/snooker or pool table, the composite table comprising a pivotable portion having one side thereof formed as a planar surface (12) and the other side thereof formed as a playing surface (11), the planar surface and the playing surface facing in opposite directions, the arrangement being such that the pivotable portion can turn in the direction of the arrow (13) about an axis (9) thereof to present either the planar surface or the playing surface uppermost. A locking device (17) can be used to lock the pivotable portion (4) in the chosen position. Suitably the axis (9) is off-set from a centreline (10) of the composite table. <IMAGE>
Patent GB-2069779-A (GB)
Title: Discharge lamp circuit
IPC: H05B41/04
Filed: 1980-02-08
Abstract: Two (or more) gas discharge lamps (10, 110), each in series with a choke ballast (18, 118) across A.C. supply terminals (16a, 16b) are started by a single starter circuit (70), the lamps being connected to the starter circuit through respective rectifying diodes (150, 152). The starter circuit (70) operates with rectified half-cycles of the A.C. supply, and resistors (154, 156) balance the cathode heating currents between the two lamps. Preferably the starter circuit is rendered ineffective in a failed-lamp condition, and to this end (per DE-OS 28 16 415) it includes a thyristor (26) triggered by a control circuit which includes a capacitor (32) effective to increase the instantaneous applied voltage which is required to trigger the thyristor with successive cycles of the applied voltage after initial switch-on of the circuit. A Zener diode (30) is in series with the capacitor (32). <IMAGE>