baber/WOPTO huggingface dataset:
Patent GB-214701-A (GB)
Title: Improvements in or relating to articles of or containing rubber as a substitute for bristles, fibres and the like, such as brushes, mats, floor coverings, grips and the like
IPC: B25G1/10
Filed: 1923-01-19
Abstract: 214,701. Dessau, M. M. Jan. 19, 1923. Carpets, mats, &c. are composed of a plurality of strips of material placed side by side with the edges of alternate strips or groups of strips projecting beyond the intermediate strips, the projecting strips being formed of rubber crÛpe or sheet and having serrated edges. The intermediate strips may also be of rubber and the whole may be secured together with rubber latex, and vulcanized by the Peachey or other cold process. Fabrics &c. may be incorporated between adjacent strips. The material may be mounted upon a backing layer, or both surfaces may have projecting edges similarly or differently arranged. The projecting edges may be double, as shown in Fig. 3.
Patent GB-1102197-A (GB)
Title: Semi-conductor elements
Inventor: WHITING GERALD
IPC: H01L29/40
Filed: 1966-01-14
Abstract: 1,102,197. Semi-conductor devices. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. 6 Dec., 1966 [14 Jan., 1966], No. 1885/66. Heading HlK. In a semi-conductor device 1 having first and second regions 2, 3 of opposite conductivity type, a contact 11 is provided, spaced from the periphery 7 of the junction 4 between the regions 2, 3 and extending along its peripheral length, the contact 11 being isolated from the surface 5 of the region 2 by an insulating layer 10; e.g. an oxide layer. When a potential is applied to the contact 11 an inversion zone 14, of the same conductivity type as the second region 3, is generated in the first region 2. The depletion region 15 of the junction between the region 2 and zone 14 merges with the depletion region 13 associated with the junction 4, thereby preventing surface breakdown of the junction 4 at its periphery 7. The potential applied to the contact 11, which may be annular in shape, may be the same as or different to that applied to the contact 3 attached to the second region 3. Two separate concentric contacts 11 may be provided, and in an alternative form the contacts 11 are applied to the opposite face to that on which the periphery 7 of the junction 4 emerges, the depletion regions merging across the crystal thickness. The invention may also be applied to a PNPN rectifier.
Patent GB-572823-A (GB)
Title: Improvements in or relating to coating compositions
IPC: C09D167/08
Filed: 1944-02-13
Abstract: Resins which are adapted to yield quick-drying, hard, water-resistant films which are light-fast, are obtained by esterifying the fatty acid-resin product of the parent Specification with an excess of polyhydric alcohol followed by further heating with a polybasic acid, e.g. maleic or anhydride, e.g. phthalic.  Excess alcohol is based upon the acid number of the fatty acid-resin product; subject to such excess, some alcohol may also be introduced with the polybasic acid or anhydride. Specified alcohols are glycerol, ethylene glycol, diethylene glycerol and pentaerythritol.  The fatty acid-resin product is preferably based upon a fatty acid/resin ratio between 1/1 and 3/1 ; the preferred ratio of total oil (including that formed of reaction between the fatty acid and glycerol) to total resin is between 4/6 and 6/4 , and the preferred ratio of alkyd to phenolic component is between 2/1 and 1/4 . Drying oils, e.g. linseed, perilla, soya bean, oiticica or tung may be added at any stage; preferably, some tung oil is added with the alcohol in the first stage, together with a small proportion of an alcoholysis catalyst, e.g. litharge.  Examples describe the preparation of a resin from p-tertiary butyl phenol and formaldehyde and of fatty acid-resin products therefrom by heating p  with linseed oil fatty acids which products are further treated with (1) tung oil and glycerine, followed by phthalic anhydride; (2) glycerol, followed by a mixture of glycerol and phthalic anhydride, and (3) a mixture of ester gum, tung oil and glycerol, followed by phthalic anhydride.  The products may be thinned with xylol, white spirit or heavy naphtha.
Patent GB-1376112-A (GB)
Title: Valve seat device adapted for use in a non-return valve
IPC: F16K15/00
Filed: 1973-01-15
Abstract: 1376112 Valves A SCHULE 15 Jan 1973 [21 Aug 1972] 2068/73 Heading F2V A valve seat device comprises a frusto-conical helix of wire 1 supported on the outside by a longitudinal spacer or spacers 7 preferably electric welded to the wire. More than one wire helix may be used and the wire is preferably of circular cross-section. At the ends of the helix the wires may be in contact. A flange 9 may be provided to facilitate mounting in a pipe-line. When used in a non-return valve the resilient closure member 6, which may have a reinforcement 8 at the edge, is anchored to the apex of the helix by means of a screw which passes through the helix in an axial direction.
Patent GB-593146-A (GB)
Title: Improvements in cigarette or the like lighters
IPC: F23Q2/34
Filed: 1945-01-27
Abstract: 593,146. Pyrophoric lighters. ROSE, A.G., and ROSE BROS. (GAINSBOROUGH), Ltd. Jan. 27, 1945, No. 2195. [Class 75 (iii)] A pyrophoric lighter consists of a body 11 of transparent material with metal ends 12, 13, one carrying the flint, wheel, and wickholder and the other carrying the filler plug. The body is preferably of " Perspex " (R.T.M.) and contains coloured, cotton wool in which a badge 23 or a decorative panel may be embedded. The change of shade of the wool indicates the quantity of the fuel. The ends 12, 13 may be silver or chromium-plated, and may be secured by screws 18, 22 to transparent inserts 19, 21 cemented to the body 11.
Patent GB-1122294-A (GB)
Title: A volumetric metering device for coffee machines
IPC: A47J31/40
Filed: 1966-01-18
Abstract: 1,122,294. Delivering measured quantities of liquid. C. E. VALENTE. 18 Jan., 1966 [22 Jan., 1965], No. 2223/66. Heading B8N. A device for dispensing measured quantities of water in a coffee-making machine comprises a metering means having a pair of chambers one on each side of a differential piston 50 and connected to the delivery side of a pump 37, the movement of the piston being effected by the water fed through a valve 3 which is actuated by an operating lever 33, 34 of a delivery cock 2 for the coffee. In operation upon depressing the lever 34, the valve 3 is closed and the cock 2 opened the lever also actuating a switch to start the pump 37; the lever is retained in its operated position by means of a latch 8, 36. The water then flows, via a pipe 41, into one of the chambers 42 thereby raising the piston so that the water on the other side of the piston is forced through a pipe 46, a heat exchanger 14, restriction 22, valve 2 and, via a channel 24, through a filter 25 containing the coffee. As the piston rises. an abutment 7 thereon contacts a pivoted block which in turn strikes the latch 8 and so releases the handle 33, 34; in order to vary the stroke of the piston, steps are formed on the block which may be moved transversely by means of a handle 9. In order to allow the water to pass through the delivery valve 2 continuously, an abutment block 49 adapted to transmit the movement of the lever 33, 34 to the valve 3, may be withdrawn by means of a handle 10.
Patent GB-779096-A (GB)
Title: Improvements in or relating to insulated electrical conductors
IPC: C08L71/02
Filed: 1955-01-25
Abstract: Electrical conductors are insulated with copolymers of 3,3-bis-(chloromethyl) oxetane with oxetane or a substituted oxetane such as 3,2-bis-(fluoromethyl) oxetane; 3,3-bis-(bromomethyl) oxetane; 3-chloromethyl-3-methyl oxetane; or 3,3-dimethyl oxetane. Examples describe the copolymerization of 3,3-bis-(chloromethyl) oxetane with: (1) 3-chloromethyl-3-methyl oxetane, and (2) dimethyloxetane.  Reference has been directed by the Comptroller to Specification 723,777.
Patent GB-1028680-A (GB)
Title: Sewing machine stitch length regulator
IPC: D05B73/00
Filed: 1965-01-19
Abstract: 1,028,680. Sewing machines. SINGER CO. Jan. 19, 1965 [Jan. 28, 1964], No. 2272/65. Heading D1G. A stitch length-adjustment lever in a sewing machine has a turnable knob screwed on its free end, a member slidably mounted on the lever has a flat surface engaging a flat surface on the machine frame to prevent rotation of said member on the lever, indicator means are provided at the end of said member adjacent the knob and means bias said member towards the knob. A lever 33, fixed to a pivoted block 17 for tilting the latter to vary the stitch length, has a rotatable knon 43 screwed on its face end. A sleeve 44, slidable on lever 33, is of rectangular cross section and engages the sides of a slot 37 provided in a plate 36 secured to the machine frame. A spring 46 bias sleeve 44 against knob 43. By turning knob 43 outwardly, an indicator member 45, provided on sleeve 44 adjacent knob 43, is disengaged from a stitch length scale provided on plate 36 adjacent slot 37. Knob 43 is turned inwardly to re-engage member 45 with said scale at the re-adjusted position of lever 33.
Patent GB-138686-A (GB)
Title: Improvements in motor tractors
IPC: B62D49/00
Filed: 1919-01-30
Abstract: 138,686. Leadbetter, T. A. N. Jan. 30, 1919. Driving steering-wheels; differential gearing.- For land and road haulage a tractor can be fitted with separate alternative sets of front driving and steering wheels provided with internal and external gears respectively adapted to mesh with separate driving pinions, by which means different gear ratios are obtained. The wheels are driven from a differential gear, which is movable to bring two bevel gears thereon alternatively into mesh with a driving bevel gear, to ensure a forward drive in both cases. Fig. 1 shows a land wheel 14 fitted at one end of the front axle, and a road wheel 16 at the other end. The land wheels 14 have internally-toothed gears 13 driven by pinions 12, while the road wheels 16 are driven by pinions 11 in mesh with externally-toothed rings 15. The pinions 11, 12 are carried on shafts parallel with the stub-shafts 9, and are driven by bevel gears 7 in line with the steering-axes, the gears 7 being driven in turn by bevel-gears 6 on the differential shaft 5. The differential is moved to effect a forward drive by means of a fork operated by a hand-operated cam.
Patent GB-1118090-A (GB)
Title: Quinolizine compounds
Inventor: MELTZER ROBERT ISRAEL
IPC: C07D455/03
Filed: 1967-01-16
Abstract: Novel compounds of Formulae A and B <FORM:1118090/C2/1> wherein R1 and R2 are each hydrogen, hydroxy or lower alkoxy, R6 is hydrogen or hydroxy, R3 is hydrogen or lower alkyl, R4 is hydrogen or the acyl residue derived from a carboxylic acid, R5 is hydrogen, halogen, lower alkoxy, aryl or lower alkyl, Z is an anion, and n is 1 or 2, and acid addition salts of compounds of Formula II, are prepared (1) by cyclizing, by refluxing with a cyclizing agent, a compound of Formula III to produce a compound of Formula A <FORM:1118090/C2/2> and (2) by reducing a compound of Formula A in which R2 is hydrogen or hydroxy, by reaction with a complex alkali metal hydride to produce a compound of Formula B.
Patent GB-890367-A (GB)
Title: Improvements in or relating to devices for controlling the resonance characteristics of aerials
Inventor: HALE ANTHONY PETER
IPC: H01Q9/08
Filed: 1960-01-22
Abstract: 890,367. Aerials; R.F. couplings. BELLING & LEE Ltd. Dec. 16, 1960 [Jan. 22, 1960], No. 2350/60. Class 40(7). A printed circuit which is used in conjunction with an aerial, for example a dipole, so that the aerial may receive signals in one of a number of selectable bands comprises circuitry as illustrated. The inductance L1 is formed with a number of tapping points 16, 17, 18, 19, the band in which the aerial resonates being dependent on the tapping point selected. Specification 829,643 is referred to.
Patent GB-111398-A (GB)
Title: Improvements in Sink & like Traps.
Inventor: HALLIDAY GEORGE
IPC: E03C1/264
Filed: 1917-02-20
Abstract: 111,398. Halliday, G. Feb. 20, 1917. Sink overflow and waste fittings.- An unperforated cup-like receptacle a, Fig. 1, is provided with a perforated tube b, and a perforated cup-like receptacle c, fitting the receptacle a, and provided with a perforated tube d. To fill the sink with water, the receptacle c is removed and the tube b covered by a cap f, Fig. 2, or by an overflow-preventer tube g, Fig. 3, having a perforated top h. Specification 105,535 is referred to.
Patent GB-560556-A (GB)
Title: Improvements in radio telegraph and telephone transmitters
IPC: H04L27/04
Filed: 1943-02-16
Abstract: 560,556. Valve keying and modulating circuits. AMALGAMATED WIRELESS (AUSTRALASIA), Ltd. Feb. 16, 1943, No. 2587. Convention date, Feb. 17, 1942. [Class 40 (v)] A radio transmitter for telegraphy and telephony utilizes an audio-modulating valve as an absorber of energy during the telegraphy spaces in order to maintain a constant load on the power source. As shown, an oscillation generator V1 is coupled through an isolating valve V2 and power amplifier V3 to the aerial 2 and bias keying is effected by a switch 3 in the grid circuit of the valve V2. High-tension is applied to the power valve V3 from a source S'. For telephony, audio-signals from a microphone are switched into the grid circuit of a valve V6 which feeds a push-pull Class B modulating valve pair V7, V8 supplied by the source S. The output from valves V7, V8 is fed through a transformer T to an audio choke AFC in the H.T. lead to the radio frequency amplifier V3, the switches S1, S2 being in the position B as shown. When telegraphy is being effected, the valve V6 is disconnected from the microphone and connected to an audio-frequency oscillator V4 through an isolating valve V5, and the switches S1, S2 are thrown to the A position, connecting the transformer T to an absorber resistance R. During a marking period, oscillations are induced in a rectifier circuit V9 and the rectified voltage is fed to the grid of the valve V5 to bias it to cut-off. During a spacing period (or on failure of the oscillator V1), this bias is removed and audio-energy is fed through the valves V4 ... V7 and is absorbed in the resistance R, thus maintaining the same load on the source S as during the marking period. In a modification, Fig. 1 (not shown), the rectifier circuit V9 is omitted, and the key 3 is arranged to render the valve V2 operative during marks, and the valve V5 operative during spaces. Specification 245,829, [Class 40 (v)], is referred to.
Patent GB-782585-A (GB)
Title: Improvements in and relating to apparatus for spinning threads, filaments, fibres, films and the like
Inventor: JONES RUPERT SYDNEY
IPC: D01D5/06
Filed: 1955-01-28
Abstract: <PICT:0782585/IV (a)/1> <PICT:0782585/IV (a)/2> In spinning apparatus in which the jet is fed with material through a movable pipe and is situated in a chamber supporting a tube perpendicular to the face of the jet for the passage of both filaments and liquid coagulating medium, the latter is introduced through an inlet behind the jet which makes a press-fitting joint with the supply tube.  As shown, a chamber 1 housing a spinning jet 2 is capped by a lid 3 supporting a tube 4 perpendicularly above the face of the jet.  The chamber 1 has a tapered base 5 which press-fits into a conical recess 6 in a pedestal 7.  Pipe 8 supplies acid coagulating medium through an inlet 9.  Pedestal 7 is fixed inside a trough 10 having a drain 11. Viscose is supplied to the jet 2 by a feed pipe 12 pivoted at shoulder joint 13 at one end and secured to chamber 1 at the other end. Filaments 14 extruded from the jet are drawn through tube 4 by means not shown, while coagulating liquid flows co-currently to a collector 15.  Tube 4 is readily detachable from the pedestal 7 to facilitate emptying chamber 1 and tube 4 of coagulating medium, e.g. when stopping spinning.  Similarly, when starting up the chamber 1 is readily swung into position.  In a modification (Fig. 3, not shown), the pedestal 7 is replaced by a main which supplies coagulating medium to a number of spinning positions and has a number of outlets, each having a rubber bung into which fits a tapered portion of the chamber 1.  Specification 720,187 is referred to.
Patent GB-304784-A (GB)
Title: Improvements in suspension systems for motor vehicles having four wheels
IPC: B60G3/26
Filed: 1929-01-25
Abstract: 304,784. De Lavaud Holdings Corporation, Ltd., (Assignees of Lavaud, D. S. de). Jan. 27, 1928, [Convention date]. Springs, arrangement of.-The front wheels are independently sprung in the vertical plane while the rear wheels are sprung in such a manner that they may oscillate angularly in the vertical plane transverse to the car. The rear half axles 6 are pivoted at the inner ends to a fixed part of the vehicle and have one or more Cardan joints.
Patent GB-921291-A (GB)
Title: Improvements in or relating to vibratory feeders
IPC: B65G27/00
Filed: 1960-07-27
Abstract: 921,291. Jigging conveyers. SYNTRON CO. July 27, 1960 [Aug. 24, 1959], No. 26187/60. Class 78 (1). Apparatus for use in the vibratory feeding of miniature articles, e.g. washers of a thickness of a few thousandths of an inch, consists of a bowl in the form of an annular dish whose surface slopes downwardly towards its centre where it merges with an upwardly extending outwardly open helical track. As shown, the dish's surface 27 is parallel to the conveying surface 26 of the helical track and runs into the latter at its lower end. Suitable vibration of the bowl will thus cause articles on the dish to be conveyed up the track towards its upper end where they would normally be discharged back into the bowl. Just before this upper end is reached, there is set into a groove 37 in the track a discharge shoot 36, and just before this, at 34, an adjustable stop is inserted which restricts the width of the track and is used to control the orientation of the articles. The vibratory feeder shown consists of the bowl above described mounted adjacent a bridge member 40 on to which the shoot 36 discharges, the bridge 40 comprising two relatively adjustable bars 38 and 41 of which the former has a sloping surface whose lower edge lies just below the level upper surface of the latter to define a ridge which is set to about the thickness of an article to be conveyed along the bridge. At 54 the bar 41 is cut away so that, should two articles fed from shoot 36 on to the surface of bar 38 become superimposed, the upper will be automatically rejected at 54. The end of the bridge 40 is connected to a take-away shoot of tubular form (not shown). In use of the apparatus both the bowl and the adjacent bridge member are vibrated, the former directly and the latter indirectly, by a vibrator contained in the base housing 5. This vibrator reciprocates a plurality of obliquely disposed rods coupled to the bowl. The body of the housing, which tends to vibrate in unison with the vibrator, is connected to the bridge member 40 by a leaf spring support 45 and, by suitably adjusting a counterweight 53 carried by the bridge member, the natural frequency of the mass-spring system comprising the bridge member and its spring support is tuned to approximate resonance with the vibrator frequency so that the bridge will be given an appreciable amplitude of vibration whenever the bowl is vibrated.
Patent GB-997571-A (GB)
Title: Weighing apparatus including a weigh-pan having an inclined delivery floor and a discharge flap disposed at an end thereof
IPC: G01G21/00
Filed: 1962-01-24
Abstract: 997,571. Hoppers. K. L. VON BODDIEN, and J. SIEBENEICHER. Jan. 24, 1962 [Jan. 24, 1961], No. 2625/62. Heading B8S. [Also in Division G1] As applied to a concrete dispenser, the weighpan 2 has a discharge flap 3 at the lower end and a vibrator 4 with a motor mounted above this. The ingredients are supplied by a feeder 11 having a number of delivery flaps 12, a scraper winch 15 and scraper 18 being used to draw the materials from storage chambers 13 to the vicinity of the flaps 12. The cement is introduced from a separate tank 7 having its own weigh-beam 10, via a rotary valve 9 and shoot 6. The feeder is provided with partitions between the flaps 12 to keep the different materials separate, the partitions being extended by means of pivoted barriers 19. The apparatus may be mounted in a frame having retractable wheels so that it can be transported, the barriers 19 being folded against the ends of the frame and the upper part 25 of the feeder folded down during transport.
Patent GB-252758-A (GB)
Title: Improvements in power transmitting gearing
IPC: F16H1/22
Filed: 1925-01-29
Abstract: 252,758. Hatcher, E. C. Jan. 29, 1925. Toothed gearing.- In worm and wheel gearing, a wormwheel 19 on a shaft 20 is driven on opposite sides by worms 18 on shafts 17 carrying wormwheels 16 which may be driven by a single common worm 15, as shown, by individual worm drives from two separate shafts, or by two worms on a single shaft arranged at right angles to the shafts 17 and 20 and connected by a sliding coupling to a driving-shaft to eliminate end thrust. A closed casing 21 contains oil. Specifications 2067/12, 1844/13, and 159,754 are referred to.
Patent GB-1420894-A (GB)
Title: Hydraulic booster
IPC: B60T13/14
Filed: 1974-01-21
Abstract: 1420894 Brake boosters DAIMLER-BENZ AG 21 Jan 1974 [25 Jan 1973] 02663/74 Heading F2F An hydraulic brake booster, in which an actuator such as a master cylinder piston 18 is movable both by a booster piston 19 and directly by a brake operating member 14, connected to an hydraulic accumulator has a control valve comprising a piston element 34 whose movement is independent of the pressure on the inflow side and a control sleeve 29 contained in the booster piston accommodates the piston element 34 in a coaxial bore 33 and has a plurality of bores 35 distributed, parallel to the axis, around the bore 33, a first part of the bores 35 communicating with the pressure medium inflow and accommodating inflow valves with balls 38 while a second part in the form of blind bores (41) establishes communication between an annular space 24 for the piston 19 and a working space 42. Arranged in the bores 35 are compensating pistons 36 abutted against a common abutment 37, a spring 40 between this abutment and sleeve 29 loading the inflow valves. When actuating member 14 is displaced by the brake pedal the outflow valve becomes closed since a disc 46 engages a seating 45 and upon further displacement valves 38 are opened against spring 40 and pressure is transmitted through an annular space 27 transverse bore 28, bores 35 and the valves to working space 42 and thence through bores 41 to annular space 24. As pressure builds up piston 19 moves with the control sleeve 29 and actuates, through a rod 32, the piston 18. When the pedal is released the outflow valve is opened and the inflow valves closed by spring 40 so that spaces 42 and 24 are relieved of pressure.
Patent GB-489571-A (GB)
Title: Improvements in automatic tuning apparatus for wireless receivers
IPC: H03J7/04
Filed: 1937-01-29
Abstract: 489,571. Wireless receiving circuits. ROBINSON, J. Jan. 29, 1937, No. 2725. [Class 40 (v)] An automatic frequency control system for a heterodyne receiver comprises a highly selective circuit 28 tuned to the true intermediate frequency, the output of which is applied, together with the incoming signals from 20, 33, 34, to a mixing valve 29 to produce a beat frequency which corresponds to the oscillator frequency required to give the true I.F. This beat frequency is applied as a control frequency to the oscillator circuit 22, 23, over coupling 35 and pulls the oscillator frequency into tune with the control frequency. The signal frequency may be derived from the anode circuit of the first detector 21 and the second detector 26 may be coupled directly to the stage 28 which is a balanced circuit comprising a crystal gate 31 and condenser 32.