baber/WOPTO huggingface dataset:
Patent GB-1248087-A (GB)
Title: Improvements relating to pressure gauges
Inventor: THORP WILLIAM
IPC: G01L9/00
Filed: 1969-02-28
Abstract: 1,248,087. Semiconductor devices. FERRANTI Ltd. 27 Feb., 1970 [28 Feb., 1969], No. 10732/69. Heading H1K. [Also in Division G1] A pressure gauge includes a transducer support 25 carrying a semi-conductor body 10 having a plurality of piezo-resistive strain sensing elements 13 formed therein, mounted in an enclosure 32, 22 containing a fluid at a predetermined pressure, a bore 28 extending through the enclosure part 22 to allow fluid whose pressure is to be measured to communicate with a cavity 26 defined by the support 25 and semi-conductor body 10 and thereby flex the sensing part of body 10. The transducer 10, Fig. 1, comprises superimposed P-type substrate 11 and N-type epitaxial layer 12 having formed in its central region 14 diffused P-type sensing resistive elements 13, P-type layer 11 being removed from region 14 to allow layer 12 to flex. Four resistors 13 are provided at the centre of 14 and two pairs os U-shaped resistors 13 at its periphery which resistors are connected by aluminium strips 17 to terminals 18. In operation two of the central resistors 13 and two of the U-shaped resistors are connected to form a Wheatstone Bridge the output from which varies in response to changes in pressure on region 14. Others of the resistors 13 may be employed as balancing or calibrating resistors, or pairs may be connected in series and used as temperature sensors together with thin film trimming resistors to provide a temperature independent output. The silicon support 25 is bonded to a metal tube 23 having a matching coefficient of expansion and which extends through header 22 forming part of the hermetically sealed enclosure. The pressure in the enclosure may be a vacuum or can be preselected by a valve connected to tube 33 communicating with metal can 32. Instead of mounting the pressure gauge to anchorage 42 by means of screwthreaded part 38 of header 22 the metal can 32 may be provided with a screw-threaded block to which is attached tube 33, Fig. 3 (not shown).
Patent GB-232783-A (GB)
Title: Improvements relating to the handles of hand and like brushes
IPC: B25G3/08
Filed: 1924-05-01
Abstract: 232,783. Gawthorp, J., and Gawthorp, W. May 1, 1924. Reversible handles; fixing by dovetail members.-Brush handles of the kind having a dovetail extension adapted to fit a corresponding groove or grooves in the brush head are provided with a short curved blade spring having its ends retained in transverse saw cuts in the underside of the handle extension, the spring being adapted to engage the bottom of the groove in the brush head for securing the latter to the handle. The brush head C has a dovetail groove D at each end, or a single groove extending its whole length, and the correspondingly dovetailed extension B of the handle A is provided on its underside with a curved spring E having its ends retained in saw cuts F. A recess G may be provided on the handle to receive the end H of the brush, and the joint may be covered by a ferrule J.
Patent GB-454934-A (GB)
Title: Improvements in or relating to windows and to frames therefor
IPC: E06B3/50
Filed: 1935-04-06
Abstract: 454,934. Windows. PARSONS, J., Cromwell Works, Earlsdon Avenue, Coventry. April 6, 1935, No. 10738. [Class 20 (iii)] Consists of windows in which sashes are movably fitted in a frame pivotally.mounted in, and detachable from, the main frame. In the form shown, the inner frame b is provided with pivots c which engage in slots c<1> formed in the main frame a, and is fitted with three sashes d, e, f, hinged together at their adjacent edges g, h. The middle sash e is pivotally mounted at its middle x in the frame b, while the upper and lower sashes are provided with pins i which move along slots k in the inner frame. In a modification (not shown), two sashes only are fitted, hinged together at their meeting edges and with the lower sash hinged at its bottom edge to the inner frame, or alternatively, sliding sashes of the usual type may be fitted alone or in conjunction with a pivoted sash. Draught-excluding strips, such as are described in Specification 420,603, may be provided between the sashes and inner frame, and between the latter and the main frame.
Patent GB-513291-A (GB)
Title: Improvements in or relating to sand-papering tools
IPC: B24D9/00
Filed: 1938-04-08
Abstract: 513,291. Sanding wood &c. ADLER MANUFACTURING CO. April 8, 1938, No. 10855. Convention date, April 12, 1937. [Class 60] A sanding-tool for treating mouldings on wood &c. comprises an electric'motor driving a spindle 13 on which is mounted a hollow cylindrical head 14, closed at one end and provided with longitudinal slots 15 extending from the closed end through the open end. Mounted on the outside of the head 14, by means of screws 18, and between every other pair of slots, are radial brushes comprising blocks 17 and bristles 16, and mounted within the head is a sleeve 19 having therein longitudinal bores 20, one for each brush, a slot 21 also being provided for each bore. An abrasive sheet 22 passes through each slot 21 and its end is secured in the bore by a pin 23,.the sheets 22 then being wound around the sleeve and their outer ends brought out through the slots so as to be supported by the brushes; the sheets are slotted to conform with uneven work surfaces. The sleeve 19 and the pins 23 are secured in position by a cap 25 bored to receive the spindle 13, and having a bevelled flange 26 seating in a groove 27 in the end of the head 14, the cap being secured by a nut 28 and having recesses 30 to receive the heads of the pins 23. By loosening the nut 28 the cap may be turned to wind up or allow unwinding of the sheets 22; the sheets 22 may lie on either side of the brushes, according to the direction of rotation of the tool.
Patent GB-376812-A (GB)
Title: Electric cable end joint
IPC: H02G15/072
Filed: 1931-04-14
Abstract: 376,812. Cable end joints. MICAFIL AKT.-GES.- WERKE FœR ELECTRO-ISOLATION, Alstetten, near Zurich, Switzerland. April 14, 1931, No. 10958. Convention date, May 8, 1930. [Class 36.] In an end joint for a cable 2, the conductive core 1 of the cable i: connected to a lead-through insulator 6 and a wrapping of insulating material 4 is applied over the end o: the lead-through insulator and the end of the insulated core. The wrapping 4 may be covered by a metal lining 5, the joint then being enclosed, either alone or together with other joints, in an oil-filled casing 7. The lead-through insulator 6 consists preferably of a condenser bushing.
Patent GB-969671-A (GB)
Title: Improvements in or relating to apparatus for charging furnaces with solid fuel
IPC: F23K3/00
Filed: 1962-03-22
Abstract: 969,671. Stoking furnaces. RUHRKOHLENBERATUNG G.m.b.H. March 22, 1962 [April 29, 1961], No. 10958/62. Headings B8A and B8S. A furnace 1 is fed with solid fuel from a bunker 2 by means of a reciprocating shoot 3 forms the bunker base and feeding into an obliquely rising tube 4 within which a ram 5 operates. The shoot and ram have a common drive, incorporating a reciprocated rod 9 of which one end is coupled to the shoot 3 and the other to the ram 5. The bunker sides are downwardly convergent and terminate between the sides of a trough which constitutes the shoot 3 and which moves on rollers 7. The fuel is shaken over the open edge of this trough into a transfer hopper 8 which opens into the tube 4. The latter is of uniform cross-section within the stroke of the ram 5, but its cross-section progressively increases over the remainder of its upward extend toward the furnace. This progressive widening of the tube is designed to minimize falling back of fuel during the return stroke of the ram.
Patent GB-743498-A (GB)
Title: Jet propulsion engines with pulse-jet units
Inventor: PARIS FRANCOIS GILBERT
IPC: F02K7/075
Filed: 1953-04-21
Abstract: 743,498. Jet propulsion plant. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. April 21, 1953 [April 24, 1952], No. 10969/53. Class 110(3) A jet propulsion engine having one or more pulse jets each provided with an exhaust pipe has each exhaust pipe combined with an ejector having a forwardly facing inlet which discharges into a pressure chamber which is substantially closed except for the ejector device or devices discharging thereinto and a propulsion nozzle communicating with the atmosphere. In the arrangement shown, Fig. 1, a number of pulse jets 6 discharge through ejector units 13 and force air into a pressure chamber 16 having a propulsion nozzle 3. A cowling 1, arranged around the pulse jets 6 has a divergent portion 8 so that the velocity of the air entering the inlets 7 of the pulse jets is less than that of the air passing through the inlet 2 of the cowling. The part of the air passing through the inlet 2 not used in the pulse jets passes to the ejectors 13. When a number of pulse jets are used the explosions in the various units are preferably out of phase. A variable area nozzle 17 and re-heat burners 39 may be provided. In this arrangement the pulse jets 6 are of the automatically operating type which operate at the frequency of resonance of the sound tubes they constitute. In a modification, in which the pulse jets are fitted with aerodynamic inlet valves of the type described in Specification 731,798, the back flow through the valves is led to a separate propulsion nozzle as described in Specification 733,508. In another modification. Fig. 4, the pulse jets are formed by intermittently operating combustion chambers 28 of the type described in Specification 743.492 employing a scavenging system. A pressure drop between the inlet and outlet of the pulse jets is caused by an orifice 32. A turbine 33 may be arranged in the orifice. The chambers are intermittently operated at any desired frequency by means of a motor 37 which drives a fuel injection pump 34 and a generator 35 supplying current to the sparking plug 36. In another modification, the drop in pressure is obtained by taking the air supply for the injectors 13 frcm the boundary layers of the unit. The intermittently operated combustion chambers may be arranged in a circle or in a line adjacent one another. The latter arrangement is especially suitable for an installation in an aircraft wing. Specifications 660,144 [Group XXIX], 711,281 and 715,323 also are referred to.
Patent GB-419664-A (GB)
Title: Improvements relating to pedals for bicycles and the like
IPC: B62M3/08
Filed: 1933-04-12
Abstract: 419,664. Securing articles on shafts. RENOLD & COVENTRY CHAIN CO., Ltd., and RENSHAW, A., Didsbury, Manchester. April 12, 1933, No. 10981. [Class 80 (ii).] In a ball-bearing component for bicycles, for example pedals or wheel hubs, of the kind having a bearing of the cup-and-cone type at each end, those of the cups and cones which are not integral with the hub and spindle respectively are secured to the hub and spindle in a manner which does not permit of adjustment of the bearings. Fig. 5 shows the application to a wheel hub 61 in which the cups 62 are formed with projections 64, Fig. 8, which are made by pressing obliquely into the outer surface of the cup a flat-ended tool to form depressions 66, the metal removed thereby forming the projections. After hardening, the cups are forced into the hub recesses, the projections scoring grooves 68 and forcing metal into the depressions 66 as at 70. The cones 72 are secured on the spindle 73 in a similar manner by forming projections in the bore of the cones and forcing them on the spindle. In the case of a pedal, Fig. 1, the cups 30, 32 are formed with shoulders 28 between which the hub 26 is secured by a press fit, and the cup 32 is secured in the plate 34 in the same way as the cup 62, Fig. 5, is secured to the hub 61. The inner cone is constituted by a shoulder 12 on the spindle 10 while the cone 16 is secured by forming projections in its bore by means of a tool pressed into the outer end of the bore, and forcing the cone on the spindle, the end of the spindle being riveted over so as to fill notches, formed by the tool. A dust cap 38, secured in the plate 36, is provided with an oil hole 42 closed by a resilient tongue 44. Specification 297,570, [Class 24], is referred to.
Patent GB-178846-A (GB)
Title: Improvements in the frames of motor-cycles and the like vehicles
IPC: B62K11/08
Filed: 1922-04-19
Abstract: 178,846. Calvignac, G. April 19, 1921, [Convention date]. Sheet-metal frames. - In a frame for motorcycles &c. of the kind comprising two symmetrical lateral halves of sheet metal pressed into shape and connected together along the middle plane of the frame by means of bolts adapted to serve as stays, the halves 1, 2 are formed with outwardly projecting wings 5, 6 serving as foot-rests and leg shields respectively, and with rearwardly projecting parts 4 constituting supports for the petroltank and tool-chest. The halves of the frame are connected together by the rear axle 10 and bolts 11, 15, and are provided with apertures 7 for engine inspection &c. The seat is hinged to the frame at 13.
Patent GB-129119-A (GB)
Title: A Parachute for Use with Aircraft.
Inventor: MATEYKA FRANK JULIUS
IPC: B64D17/00
Filed: 1918-07-05
Abstract: 129,119. Mateyka, F. J. July 5, 1918. Parachutes.-A parachute is formed with the usual lines E covered over with or formed of netting. The air shaft is also formed of hoops and netting B. The tapering end of the air shaft is connected by a line to the suspension rope D.
Patent GB-1104097-A (GB)
Title: Insulated conductor terminations
IPC: H02G1/12
Filed: 1965-03-16
Abstract: Insulating films of aromatic polyimide and polyamine-imide resins may be etched with caustic solutions.  In the examples the reaction product of pyromellitic dianhydride and diaminobenzanilide is preferred as it is stated to be much more susceptible to caustic etching than other polyimides, many being generally described.ALSO:Selected areas of an aromatic polyimide or polyamine-imide resin forming an insulating layer on a flat multiple conductor cable are removed with a caustic solution.  The cable is masked and immersed in hot ammonium or alkali metal hyroxide solution and rinsed in cold water. The mask may be of PTFE, PVC, synthetic rubber or petroleum wax, the pattern being formed using photo-sensitive materials.
Patent GB-1522868-A (GB)
Title: Process for the production of firing-stable yellow to red glaze mixtures
IPC: C03C8/20
Filed: 1976-03-19
Abstract: 1522868 Ceramic glaze mixtures DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 19 March 1976 [19 March 1975] 11133/76 Heading C1M A firing-stable yellow to red ceramic glaze mixture is made by: (a) adding to a colour frit, which comprises at least one glaze frit and colouring substances comprising Cd, S and/or Se, 25-95% by weight (based on the colour frit) of one or more glazing-stable compounds (e.g. ZrO 2 , ZrSiO 4 , SnO 2 , Ce 2 O 3 , Al 2 O 3  or TiO 2 ); (b) calcining at above 850‹ C.; and (c) mixing the calcined material with a base frit and one or more set up agents, in proportions so that there are 60-98 parts by weight of base frit to 2-40 parts of colour frit, the base and colour frits giving a total of 100 parts by weight.
Patent GB-117693-A (GB)
Title: Manufacture of Metallopyrophosphoric Acids or their Salts Associated with Boron Compounds or Containing Boron, and the Application of the Products in Tanning.
Inventor: LEVIN BERTRAM
IPC: C14C3/04
Filed: 1917-08-03
Abstract: 117,693. Levin, B. Aug. 3, 1917. Boropyrophosphates; pyrophosphates.-Metallopyrophosphoric acids and their salts are associated or combined with boric acid or a boron compound. These acids are prepared by dissolving pyrophosphates in pyrophosphoric acid and their salts by dissolving pyrophosphates for instance in a solution of sodium pyrophosphate. The boron derivatives may be prepared in a similar manner starting from the boropyrophosphoric acid described in Specification 116,735, [Class 1 (ii), Inorganic compounds other than &c.], or by heating a metal compound with a boropyrophosphoric acid or a mixture of boric and pyrophosphoric acids to about 300‹ C., and preferably the pyrophosphoric acid is produced in the heating operation. In an example, a chromous or chromic salt such as chromic alum is heated with boric and orthophosphoric acid until the temperature exceeds 250‹ C. and the heavy mobile mass is poured on to trays or slabs and heated until anhydrous. Corresponding salts of aluminium, iron, tungsten, and manganese are mentioned. These products are suitable for use in tanning, the conditions being those usually employed for compounds of the metal in question.
Patent GB-1325428-A (GB)
Title: Analog-to-digital converter
IPC: G06F3/033
Filed: 1971-04-26
Abstract: 1325428 Analogue to digital converters INTERNATIONAL BUSINESS MACHINES CORP 26 April 1971 [30 April 1970] 11323/71 Heading G4H In a measuring system, such as the tabletstylus position sensing system of Specification 1,269,787, where continually varying capacitance changes an unknown analogue signal KX, (Fig. 2b) which is to be measured, and also its reference signal K, the unknown analogue signal is integrated for equal periods 1, 3 either side of the period 2 of integration of the reference signal. The time then for integrating in the opposite direction the final value of the integration of the reference signal until it is equal to the sum of the integrations of the unknown analogue signal is a measure of the unknown analogue signal and is determined by counting the clock pulses. The unknown analogue signal and a reference signal may be interchanged for the periods of integration. In Fig. 3 the unknown analogue and reference amplitude-significant high frequency signals are applied to bandpass amplifier 101 and a sample gate 104 to an integrator 106. The unknown analogue signal is integrated for a period T/4 and the final value is held in a hold circuit 108, after which the reference signal is integrated for a period T and the final value held in a hold circuit 112. The value held in hold circuit 108 is now imposed on the integrator output by means of amplifier 116, and the unknown signal is integrated for a final period of T/4. The integrator then integrates down to zero using the value held in hold circuit 112, during which time a counter counts clock pulses. A comparator 122 detects zero and stops the counter which then exhibits the digital value of the unknown signal.
Patent GB-227340-A (GB)
Title: Improvements in envelopes
IPC: B65D27/06
Filed: 1924-05-08
Abstract: 227,340. O'Callaghan, P. May 8, 1924. Envelopes. - In reply envelopes of the kind provided with two sealing flaps 2, 3 at the open edge, the flap 2 used for sealing in the first transmission is provided with adhesive surfaces 5 bounded by perforations 4, and small ungummed portions 8, to facilitate opening but not sufficiently large to allow other matter to lodge in the pockets so formed, are arranged between the top edge 6 of the flap and the gummed surfaces 5. The flap 2 is made large enough to cover the whole of the front of the envelope, and the gummed surfaces 5 extend round three sides of the flap. The top edge 6 of the flap 2 is also perforated to facilitate opening.
Patent GB-113772-A (GB)
IPC: F16H57/02
Abstract: 113,772. Jones, G. Nov. 23, 1917. Motors, gearing for.-Relates to motors of the type described in Specification 109,367 having a rotating casing d which acts as a pulley or drum for driving a belt in conveyers &c. and consists in providing gearing and a movable clutch to vary the speed of rotation of the pulley or drum. The sleeve i carrying the rotating armature of the motor (not shown) is connected by gearing 2, 3, 4, 5 with a rotating sleeve 1 supporting a slidable dog-clutch 10 having teeth on both faces. The clutch may be moved axially by a sliding rod 15 and plate 16 to engage teeth 12 on a disk 7 secured to the drum d whereby one speed of the drum is obtained; axial movement of the clutch 10 in the reverse direction couples the sleeve 1 with the drum d through further reduction gearing 24, 25, 26, giving a lower speed to the drum. Axial movement is imparted to the rod 15 by a sleeve 18 which is turned round through 180 degrees by a handle 21; the sleeve has a helical slot into which a pin 20 on the rod 15 fits.
Patent GB-1351843-A (GB)
Title: Ion exchange filter
IPC: C02F1/42
Filed: 1971-04-26
Abstract: 1351843 Ion-exchange W HERRMANN 26 April 1971 [29 April 1970 14 Aug 1970] 11395/71 Heading B1J An ion-exchange container has a top 28 with outlet 13 for treated water, an integral bottom 12a having an inlet 17 for water to be treated and a compressible body 25 under the exchanger substantially covering the area of the bottom, being compressed when the exchanger is fresh and expanding when the exchanger is exhausted. The body preferably rests on a flexible grating 15.
Patent GB-751041-A (GB)
Title: Improvements in or relating to methods of and apparatus for radiating and receiving microwaves
IPC: G01S13/92
Filed: 1954-04-20
Abstract: 751,041. Radar; frequency changing circuits. HAMILTON, W. M. April 20, 1954 [April 27, 1953], No. 11398/64. Classes 40 (6) and 40 (7). A radar system, more particularly of the type for use in determining the speed of road vehicles from a stationary observation point comprises a generating means, a transmitting and receiving aerial and a receiving and indicating device which determines the beatfrequency between the attenuated transmitted signal and the received signal. The generating means, aerial, and receiving device are interconnected by an arrangement providing a low loss path between adjacent lines connected thereto and a high loss path between non- contiguous lines. As shown, this arrangement comprises a rat-race 1 to which the aerial is coupled by means of a transmission line 4. The generator 12 is coupled to an adjacent point on the rat-race by means of a line 11, a suitable load 9 is connected next in order by line 10 and next crystal detector 7 by means of line 8. Energy from the generator is fed to the aerial over a low resistance path and radiated, it also flows over a high resistance path to crystal 7. Received reflected signals are fed to the crystal over a low resistance path. The resultant beat frequency signal (due to the Doppler effect and related in frequency to the speed of the vehicle) is fed through amplifier stages 13 to the circuit of valve 14 which converts the applied waveform into a rectangular one and eliminates the major portion of the crystal noise. The rectangular waveform is differentiated to give peaked signal triggering multivibrator stage 18 to give an output square wave which is once more differentiated and used to trigger a further multivibrator stage 20. The output pulses from this stage are of constant amplitude and width and the mean anode current flowing in the final circuit is measured by meter 22 to give an indication of frequency and therefore of object velocity. The system so far described may be modified (Fig. 2, not shown) to provide automatic biasing. The arrangement so modified is not operated by small signals but is brought into action at a definite signal level, the inclusion of means causing the sensitivity to drop slowly ensures that control of the indicator by the signal is maintained during rapid signal level variations.
Patent GB-1209603-A (GB)
Title: Methods of and devices for mixing flowable materials
Inventor: DAY LESLIE LEONARD
IPC: B01F5/06
Filed: 1967-03-10
Abstract: 1,209,603. Mixing in conduits. M. S. E. HOLDINGS Ltd. 29 Feb., 1968 [10 March, 1967], No. 11484/67. Heading B1C. Fluent materials may be mixed by passage through a conduit 9 having means for causing alternate rotation of the material in opposite senses; as shown, loose wire helices 10, 11 of opposite hands. The helices may alternatively be fused to or integral with the wall of the tube, which may itself be bent into a spiral or helix (see Figs. 3a, 3b; not shown). The tube and helices may be of metal, plastics, glass or quartz. Such a mixing device may be suppliedby peristaltic pumps (2, 5) with liquids of different densities the flow rate of at least one of which is varied to produce a density gradient column (7, Fig. 1 not shown) such as is used in centrifugal analysis.