baber/WOPTO huggingface dataset:
Patent GB-1278612-A (GB)
Title: Improvements in or relating to pilot-operated safety valves
Inventor: BISCHOFF CARL
IPC: F16K1/12
Filed: 1969-07-28
Abstract: 1278612 Fluid-pressure servomotor systems C BISCHOFF 28 July 1969 [27 July 1968] 37840/69 Heading G3P Closure member 6 is pressed on to a seat 8 between inlet 2 and outlet 3 by pressure in chamber 5 connected to the inlet via passage 4. Adjustablyloaded relief valve 21 acts on excess pressure in chamber 5 to connect chamber 5 to chamber 29 between the closed end of cylindrical member 6 and a fixed piston 9 to move the member 6 away from seat 8 to relieve inlet pressure. Outlet pressure flowing into the closure member acts to brake the opening movement towards fully open position. Similarly when valve 21 closes pressure flows from chamber 29 through a passage (10) in the piston and the reduction of pressure within the closure member slows down the closing movement towards fully closed position. The closure surfaces are conical and the closure member is spaced from the seat member adjacent the closure surfaces to form a restriction on first opening. Restriction 17 is provided in the outlet.
Patent GB-871242-A (GB)
Title: Improved adsorption apparatus
IPC: B01D53/04
Filed: 1956-12-12
Abstract: <PICT:0871242/III/1> A continuous adsorption apparatus for adsorbing vapours from gases or materials from liquids comprises at least two beds of adsorbent material arranged in chambers having a duct communicating with each of said chambers via inlet and outlet ports in the duct, a valve assembly inserted for rotation within said duct for connecting the ports associated with at least one chamber to an inlet and outlet conduits for a stripping medium (which may be gas or liquid), and an inlet and outlet in said duct for a fluid containing an adsorbate for the other chamber, the arrangement being such that each chamber in turn can be connected to the inlet and outlet conduits for the stripping medium while the fluid passes through the remaining chamber or chambers.  As shown, vapour laden gas enters through the bottom of the duct 15 and regeneration gas enters through the fixed pipe 29 mounted above the duct 15 by the bracket 40.  With the closure members 20 and 21 in the position shown, vapour laden gas enters the bottom of duct 15, passes through the port 19 into the adsorbent bed 13 whence it flows through the port 18 to the outlet 43 for the stripped gas. Regeneration gas enters through the pipe 29 passes through tube 23 to the T-pipe 22 whence it flows through the port 16, percolates through the adsorbent bed 11, out of port 17 whence vapour laden regeneration gas passes through T-pipe 26, and elbow 31 at the outlet 32.  Thus whilst the vapour laden gas is being treated in the adsorbent bed 13, the adsorbent bed 11 is being regenerated. At the conclusion of this treatment the tubes 23 and 27 are rotated by means of lever 34 or automatically through an angle of 90 degrees, and the ports 16, 17 and 18, 19 changed over to bring in the opposite beds.  The space 50 below the adsorbent beds, is available for the installation of auxiliary equipment.
Patent GB-832435-A (GB)
Title: Improvements in or relating to pulse controlled duo-stable circuit arrangements
IPC: H03K3/286
Filed: 1957-12-06
Abstract: 832,435. Controlled non-linear inductors. TELEFUNKEN G.m.b.H. Dec. 6, 1957 [Dec. 11, 1956], No. 38013/57. Class 40 (9). [Also in Group XL (c)] A bi-stable circuit comprises an amplifier having a predetermined normal state of conductivity (on or off) that is driven into the other state by a pulse and means controlled by the output of the amplifier for controlling the output of an A.C. source from which a rectified voltage is applied as bias to maintain the amplifier in its existing state of conductivity until a further input pulse of opposite polarity arrives. Fig. 5 shows a transistor 12<1> normally biased off from a positive source. When a negative pulse arrives at terminal 2 the transistor 12<1> conducts, causing saturation of the square loop magnetic core 24, so that the reactance of winding 25 falls. The core 24 is biased so that rectification occurs, resulting in a negative base voltage which maintains the transistor conductive. An auxiliary D.C. bias may be applied to winding 27. The alternating voltage source 4 may be common to a number of such bi-stable circuits. Circuits in which the core 24 is replaced by a diode are described in Group XL (c).
Patent GB-1223420-A (GB)
Title: Improvements in or relating to flow diffusers
Inventor: BURTON WILLIAM ROBERT
IPC: F15D1/02
Filed: 1967-08-17
Abstract: 1,223,420. Fluidised bed feed control; ion exchange; cyclone feeding arrangements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 16 July, 1968 [17 Aug., 1967], No. 38024/67. Headings B1F, BIJ and B2P. [Also in Division G3] Liquid or gas is fed to an ion exchange column, or a fluidised bed along a flow path including two conical flow diffusers in series, and a wire mesh screen located in the flow path at the junction of the diffusers and having a dished portion extending in the direction of expansion. The specification gives optimum dimensions for diffusers and an ion exchange column.
Patent GB-1242576-A (GB)
Title: Data storage timing system
Inventor: BEHR MICHAEL ISAAC
IPC: G11B20/10
Filed: 1968-08-09
Abstract: 1,242,576. Data storage timing system. BURROUGHS CORP. 9 Aug., 1968 [14 Aug., 1967], No. 38050/68. Heading G4C. A timing system for clocking digital data recovered from the information tracks of a magnetic storage medium (disc, drum or tape) compensates for the shift in the recovered bits corresponding to the first and last change in direction of magnetization in a series of changes by utilizing two transfer channels, one incorporating a delay period, and means for selecting one channel or the other for transferring the binary data. Data may be recorded by the NRZ method, particularly the NRZ (mark) recording method in which binary 1's are recorded as changes and binary 0's as absence of changes in magnetization. In reading such data, the first change of a series is shifted early by a period AT and the last one late by the same period. As shown (Fig. 2) information bits from an information track of a disc 10 are passed without delay to a gate 24 and via a delay unit 27 of period AT to a gate 28. A pattern selector including a J-K flip-flop 30 and a holdover multivibrator 36 monitors the data recovered and opens gate 24 on detecting a bit corresponding to a change of magnetization in anticipation of a late bit and opens gate 28 on detecting a bit corresponding to absence of magnetization in anticipation of an early bit. Clock pulses recovered by unit 13 from a clock track associated with the selected information track (each disc zone having a different clock track) are delayed in unit 17 for a period of ¢ #T. They are then used to strobe the data bits through gating means 26 comprising gates 32 and 33 respectively receiving true and inverse data signals and connected at their outputs to a utilization device 16. The delayed clock pulses strobe the early and late bits at their optimum points and the unshifted bits corresponding to changes in magnetization just past their optimum points. The pattern selector may alternatively comprise an exclusive OR- gate.
Patent GB-1417055-A (GB)
Title: Thin-layer complementary-channel mos circuits
IPC: H01L21/265
Filed: 1973-08-13
Abstract: 1417055 Semi-conductor devices SIEMENS AG 13 Aug 1973 [29 Sept 1972] 38191/73 Heading H1K The source and drain regions of thin-film complementary IGFETs are formed by gateself-aligned ion implantation firstly of donor (or acceptor) dopants into only one of the pair of complementary devices, and then of a lower concentration of acceptor (or donor) dopants into both devices. The first-implanted regions therefore retain their predominant donor (or acceptor) doping while the second-implanted regions are of the opposite conductivity type. The structure shown comprises discrete Si layers 2, 22 on a spinel or sapphire substrate 1, separated by SiO 2  or Si 3 N 4  isolation 15 and having pre-diffused source and drain regions 5, 6 (P-type) and 55, 66 (N-type). The gate oxides 3, 33 are stated to be of SiO and an initially continuous gate electrode layer 4, e.g. of Al, Si or Mo, is selectively etched to provide the mask defining firstly phosphorus-implanted zones 11, 12 and subsequently more weakly boronimplanted zones 13, 14 (boron also entering the zones 11, 12). The structure is then annealed at 500‹C. for 10-20 minutes to enable the implanted ions to move to electrically-active substitutional sites. In the event that the donor and acceptor depants behave differently under annealing the initially implanted concentrations are selected to give the desired excess of the first-implanted dopant after annealing. The semi-conductor layers 2, 22 may alternatively be of GaAs.
Patent GB-1361103-A (GB)
Title: Biological toilet
IPC: A47K11/00
Filed: 1972-08-16
Abstract: 1361103 Sanitary closets H ANDERSSON and H EIDET 16 Aug 1972 [17 Aug 1971 15 June 1972] 38221/72 Heading E1C In a portable sanitary closet having a ventilation outlet 3 and heating means for raising the temperature of excrement or/and garbage sufficiently to cause fermentation thereof, the heating means is in the form of a closed pipe loop 5 which contains a liquid heat transferring medium and is arranged, within a container 1 having a seat opening fitted with a cover 2, so as to lie beneath corrosion-resistant grid 4, supporting the material to be fermented, and above a collecting chamber in the bottom of the container, and a thermosiphon pump 7 is included in the pipe loop to circulate the medium on the supply of heat from a heat source which also heats the medium. The pump 7 consists of an annular chamber, heat being supplied to the central passage by either a gas flame or an electric heating element (not shown). A shunt connection 8 for gas improves the working of the pump 7. The pipe loop 5 includes several horizontal loop formations and a downward formation 6 to heat the forward end of the collecting chamber. Heavy odours are removed by a pipe 10 leading them into the interior of a heat insulating casing 11 containing the pump 7 and the heat source. The resulting flue gases pass through a flue 9 which projects partially within the ventilation outlet 3 to create a suction effect assisting the withdrawal of gases from the chamber 1. The walls of chamber 1 consist of a hollow plastics body filled with set foam plastics material.
Patent GB-985901-A (GB)
Title: Improvements in or relating to gang slitters
Inventor: SHEARD PERCY
IPC: B26D7/26
Filed: 1961-10-26
Abstract: 985,901. Shearing. PERCY SHEARD Ltd. Nov. 2, 1962 [Oct. 26, 1961], No. 38311/61. Heading B3W. [Also in Division B4] A gang slitter machine for shearing sheet metal comprises individually detachably-mounted cutter heads each having a bearing 40 supporting a blade carrier 45 which, when the head is in position on the machine, is driven through gearing 54, 56, 58. As shown, coacting blades 48, 70 are mounted in bearing members 40 in upper and lower members 26, 68 which can be readily mounted in guides 14, 60 and clamped in any desired transverse position along the guides by means of T-bolts 22. Pressure between the coacting blades is effected by adjusting the upper blade by rotating the screw-threaded outer member 36 of the bearing 40. Each blade carrier is provided with gear teeth 54 which mesh with an idler gear 56, a common gear 58 extending across the full width of the machine for effecting the drive when the head is attached.
Patent GB-865167-A (GB)
Title: Apparatus for heating a room
IPC: F28D1/02
Filed: 1958-11-27
Abstract: 865,167. Ventilating. SCHULTE & LESTRADEN N.V. Nov. 27, 1958 [Dec. 5, 1957], No. 38343/58. Class 137 Heating apparatus comprises an uncowled fan with blades arranged on radial supports about the axis of the fan, the blades being at an angle to the axis in an upwardly diverging, substantially frusto conical formation to cause an outwardly and downwardly directed current of air, and a heating device arranged below the fan. As shown the heating device comprises a frusto conical heating coil 3 having its narrower end adjacent the lower end of the fan 1 and coaxial therewith. The apparatus is arranged in a room to cause a rising current of air to pass between the coils of the heater, to be directed outwardly and downwardly by the fan and to return to the heater as indicated by lines 5, while cold air in the upper part of the room is drawn downwardly by the fan to circulate as indicated by lines 4 without substantial mixing of the warm and cold air streams.
Patent GB-1399027-A (GB)
Title: Girdle
IPC: A41C1/02
Filed: 1972-08-17
Abstract: 1399027 Girdles INTERNATIONAL PLAYTEX CORP 17 Aug 1972 [2 Sept 1971] 38443/72-Heading A3V A girdle 10 comprises a body encircling part 12 of two-way stretch material, which has an opening in the front abdominal controlling region thereof and a layer of one way stretch material 36 which overlies the opening and has a larger planar area than the opening to provide a double layer region therearound, the line of stretch of the layer 36 being vertically oriented. The opening may be of elongated oval shape as shown and extend from a point below the waist region to a point above the crotch region or alternatively the opening may extend all the way from waist to crotch. The layer 36 is secured in place by a line of stitching 40 around the opening and a further line of stitching 42 which follows the outline 44 of the layer 36. Preferably intermediate lines of stitching 46 are also provided all the stitching being of zig-zag form with modulated stitch lengths providing a scalloped effect. The edges of the opening and of the layer 36 may also be scalloped as shown. In an alternative embodiment the girdle is of panty-girdle type and the opening is diamondshaped .
Patent GB-344548-A (GB)
Title: Improvements in or relating to propelling pencils
IPC: B43K21/08
Filed: 1929-12-16
Abstract: 344,548. Pencil holders. LIVSEY, C., 13, Hope Street, Liverpool. Dec. 16, 1929, No. 38483. [Class 146 (iii).] Relates to a pencil-holder, having lead-propelling mechanism operated by a rotatable part of the barrel and provided with a lead-holding sleeve frictionally mounted on the propeller and adapted to engage obstructions in the casing to enable the propeller to move relatively to the sleeve. The propelling mechanism is housed in the rear end of the casing and is actuated by a head f to project or retract the propeller g. The lead-holding sleeve h is preferably formed from a strip of sheet brass and is frictionally held on the propeller g. A shoulder in the tip d, and a washer k, surrounding the propeller and located below the propelling mechanism, act as stops for the sleeve so that the propeller can move relatively thereto to permit ejection and replacement of the lead. Alternatively, a flange may be formed on the end of the sleeve to contact with a ring depending from the propelling mechanism and the top of the part c of the casing. A disc l is fitted inside the casing and is formed with an aperture for the passage of the spare leads into and from the receptacle m, the aperture being normally closed by the part c. According to the Provisional Specification, the end of the propelling mechanism may serve as the rear stop.
Patent GB-1325903-A (GB)
Title: Guillotine knife sharpener
IPC: B24B3/38
Filed: 1970-08-11
Abstract: 1325903 Grinding W P MORITZ 11 Aug 1970 [18 Aug 1969] 38586/70 Heading B3D A device for sharpening the knife of a guillotine comprises a base 10 which may be placed on and moved over the surface of the guillotine table, an electric motor 14 mounted on the base for driving at least one grinding wheel 35, 36, and means for adjusting the angle between the face of the grinding wheel and the guillotine table. The base is of sheet metal having feet 11 of low friction plastics material, and a cover 13 is hinged at 12 to the base and can be secured in angularly adjustable position by a screw-andslot arrangement 15, 16. The motor 14 is secured to the cover which also carries a rheostat 21 for controlling the speed of the motor. The front of the cover is hinged at 25 to a carrier 24 carrying a pair of grinding wheels 35, 36 driven by respective belts 33, 34 from pulleys 32 on the shaft of the motor, the carrier being secured in angularly adjustable position by a screw-and-slot arrangement 28. The arrangement of the hinges permits the grinding wheels to be set at a desired high or low position (Figs. 4 and 5, not shown) at an angle 1 degree to the cutting surface of the block. The depth of cut of the grinding wheels is determined by adjustable fingers 38, 39. In another embodiment, the angular setting of the grinding wheels is determined by plates which are inclined by 1 degree to the faces of the grinding wheel and are engaged with the surface of the blade, the plates being retracted during grinding. In other embodiments, the carrier and housing are adjustable about a single hinge. A cover 63, Fig. 11, may be provided to collect abrassive or metal particles.
Patent GB-1408805-A (GB)
Title: Pressure sensing probe
IPC: G01L7/08
Filed: 1973-08-15
Abstract: 1408805 Pressure gauges GENERAL SIGNAL CORP 15 Aug 1973 [17 Oct 1972] 38613/73 Heading G1L In a pressure sensing probe, such as for use in sensing the differential pressure produced in a fluid-flow pipeline, a diaphragm 18 is subject on one side to a fluid-pressure in a pipeline and on the other side to a pressure from a compressor spring 49 and a fluid supply, through a supply port 15  and nozzle 15a, in a cavity 14 connected to an output pressure port 16. A fluid exhaust port 19 communicates with cavity 14 via a nozzle 46 and a flapper valve face 48 attached to the diaphragm 18 and any alteration in the pressure acting on one or the other sides of the diaphragm 18 varies the position of the face 48 relative to the nozzle 46 to permit or stop fluid-flow from cavity 14 to the exhaust port 19. In an alternative embodiment, Fig. 4 (not shown) the spring is a tension spring and the flapper valve face is a diaphragm.
Patent GB-1007150-A (GB)
Title: Improvements in or relating to buckets for front-end tractor loaders
IPC: E02F3/40
Filed: 1961-10-31
Abstract: 1,007,150. Shovel excavators. FRANK G. HOUGH CO. Oct. 31, 1961 [Nov. 4, 1960], No. 38878/61. Addition to 942,102. Heading E1F. Actuation of an hydraulic ram 38 mounted between opposed ends 37 of two bell crank levers 31 pivoted at 35 on the back of a scoop causes through links 30 and bell crank levers 25 pivoted at 27 on the sides of the scoop arcuate movement over the mouth of the scoop of a plate structure 24 extending between the bell crank levers 25. The plate structure serves to eliminate uncontrolled spillage both at and away from the place at which the scoop is filled by in passing over the mouth of scoop scraping off any excess material piled up above the sides of scoop after it has been filled. The plate structure when positioned at the
Patent GB-1083883-A (GB)
Title: Improvements in hydraulic or pneumatic pressure control systems
IPC: F15B1/027
Filed: 1964-09-24
Abstract: 1,083,883. Fluid-pressure servomotor systems. S.A. JOHANSSON. Sept.24, 1964 [Sept.25, 1963], No.39042/64. Heading G3P. The hydraulic system described in Specification 842, 017 may include a manual or automatically controlled valve 30, Fig. 1A, which can be set to the position shown to unload both the pump and the accumulator or to positions in which only the pump or the accumulator is unloaded. When the accumulator only is unloaded, the whole of the pump output is applied to the load 5. In a further modification, a valve 31, Fig.2, may be used either to isolate the piston 12 from the accumulator so that the piston 8 of the latter functions as a safety valve to provide direct overflow through conduit 21 to the suction side of the system or to connect the piston 12 with either a conduit 34, Fig. 3B, or a conduit 15A so that unloading of the pump at either idle or normal load pressure may be provided. A further valve 33 permits the piston 12 to be connected to the suction side of the system so that the piston 8 may again function as a safety valve when the conduits 15A and 34 are connected together by the valve 31.
Patent GB-1492098-A (GB)
Title: Method and apparatus for joining the ends of successive rubber cover layer sections for subsequent use in the manufacture of steel cable conveyor belts
IPC: B29C31/00
Filed: 1975-09-24
Abstract: 1492098 Seaming non-metallic sheet material CONTINENTAL GUMMI-WERK AG 24 Sept 1975 [30 Sept 1974] 39077/75 Heading B5K Two rubber sheets are joined together by placing an edge of one sheet upon an edge of the second sheet so that the sheets overlap, severing the sheets in their overlap region by a cut performed over the whole width of the sheets perpendicular to the surfaces of the sheets, removing the severed portion, coating the cut surfaces of the sheets with an adhesive and placing them together. The sheets are cover layer sections used in the manufacture of steel cable conveyer belts. The cutting step is formed by the shown device which comprises a replaceable cutting blade 6 received in a holder 2 displaceable by a motor 13 along spindle guides 3. The blade 6 acts against a plastics support base 4 on a rigid carrier 5. Cutting of overlapping edges of successive sheets is effected during a standstill period of a conveyer belt 8 of a feed device 7 which is raisable and lowerable relative to the holder 2 by a pressure medium cylinder 10. Sheet sections 12 are fed from a slightly braked roll 12a on a pedestal 11. A hold-down device 14 comprising two rails one on each side of the blade 6 is vertically reciprocable relative thereto by pressure medium cylinders 15.
Patent GB-958296-A (GB)
Title: Improvements in and relating to lever-type hydraulic shock absorbers
Inventor: ARMSTRONG WILLIAM
IPC: F16F9/28
Filed: 1961-11-01
Abstract: 958,296. Hydraulic shock absorbers. ARMSTRONG PATENTS CO. Ltd. Oct. 2, 1962 [Nov. 1, 1961], No. 39101/61. Heading F2S. A lever type shock absorber 10 for vehicles comprises a pair of hydraulic cylinders 14 each receiving a piston 16, the cylinder communicating at one end with the hollow interior of the housing which acts as a main reservoir 12 and at the other end being connected through a fluid flow restricting means. A rockable shaft 22 is connected to the pistons 16. An auxiliary reservoir 24 is isolated from the main reservoir by a wall 26 or baffle having a relatively small passage 28 therethrough, the auxiliary reservoir being of restricted cross sectional area with respect to that of the main reservoir. In the construction shown two passages 28 are provided between the reservoir.
Patent GB-955178-A (GB)
Title: A construction for suspending removable ceiling panels below a structural ceiling
IPC: E04B9/18
Filed: 1961-11-02
Abstract: 955,178. Suspended ceilings. P. A. PALMER. Nov. 2, 1961 [Nov. 8, 1960], No. 39254/61. Heading E1V. Plaster ceiling panels 15 are suspended from the structural ceiling on flanged supports 13 by cast in resilient hooks 16 which can be pushed out of engagement with the supports 13 by latches 21, which, when the panels are forced up against the supports 13, slide down the hooks 16 until tongues 21b on the latches engage in slots 19 in the hooks. Supports 13 are adjustably suspended from the structural ceiling by brackets or channels 12, bolts 11 screwed into the flanges 10 of hooks 9, and perforated straps 7 which can slide along the lower arm of a clamped U-shaped mounting member 1 bolted to the ceiling. The hooks 16 are arranged so that adjacent hooks at panel intersections converge upwards, ensuring a close fitting intersection.