baber/WOPTO huggingface dataset:
Patent GB-505693-A (GB)
Title: Improvements in or relating to self feeding water boilers
IPC: A47J31/54
Filed: 1938-01-26
Abstract: 505,693. Heating water. JACKSON BOILERS, Ltd., and MUSTILL, C. W. Jan. 26, 1938, No. 2460. [Class 64 (i)] In a self-filling boiler for delivering boiling water for brewing tea &c., and of the kind wherein the water in an expansion pipe 10 between a boiling chamber 5 and an expansion box 12 is maintained before it boils at a constant level, the boiler water is delivered into a collecting chamber 13 extending downwards into the flue around the expansion pipe. The drawoff tap 4 is connected to the lower part of the collecting chamber. The collecting chamber may consist of a downwardly extending part of the ex. pansion chamber. A draw. off tap 21 may be connected to the expansion chamber
Patent GB-507677-A (GB)
Title: Improvements in or relating to fixed cartridge condensers
IPC: H01G4/224
Filed: 1938-01-26
Abstract: 507,677. Condensers. BOSCH GES., R. Jan. 26, 1938, No. 2462. Convention date, Jan. 27, 1937. [Class 37] A cartridge condenser has a casing made by continuing the winding of paper after the condenser unit a has been formed to form an insulating cover b, providing metal end caps f and covering the whole with at least one layer h of lacquer. As an additional safeguard against penetration of moisture, oiled paper may be wound in with the casing layers.
Patent GB-100710-A (GB)
Title: Improved Horn or Trumpet for Talking Machines and the like.
Inventor: SAVAGE FREDERICK
IPC: G10K13/00
Filed: 1916-02-19
Abstract: 100,710. Savage, F. Feb 19, 1916. Sound-directing appliances.-Horns or trumpets for talking-machines &c. are built up on a mould from strips or sheets of paper, cardboard, strawboard, &c. cut into the desired shape and secured together with hot size. When the desired thickness is obtained, the trumpet is dried in a suitable apartment heated from 80 to 100‹. Powdered resin is afterwards sprinkled over the inner and outer surfaces and burnt into the surfaces by pressing with a hot iron. The horn is finally coated with chilled size and, when dry, varnished or coloured.
Patent GB-377936-A (GB)
Title: Improved potato digger
IPC: A01D21/04
Filed: 1931-01-26
Abstract: 377,936. Harvesting potatoes. THOMPSON, J. E., Tankerton, French Island, Australia. Jan. 26, 1931, No. 2500. Convention date, June 27, 1930. Void [Published under Sect. 91 of the Acts]. [Class 6 (iii).] Potatoes are lifted by a device like a disc plough the disc being formed by tines 2 flattened at their ends 3 and attached to a hub 4. Preferably the spaces 1 between the tines are about three to five times as wide as the tines themselves are. The disc rotates on a stub axle, carried by a bracket 6, connected to a beam 7 supported by ground wheels 8 and provided with draught connections 9. The lifting device may be formed by a slotted disc in which the slots do not extend to the periphery of the disc. Coulters 10 clear the haulm from the lifting device. To expose the potatoes a levelling rake having a sharp front edge 15 and upwardly curved tines 17 is provided behind the disc.
Patent GB-308022-A (GB)
Title: Part-metallic film for kinematography
IPC: G03C1/77
Filed: 1928-01-26
Abstract: 308,022. Rado, L. Jan. 26, 1928. Drawings to Specification. Kinematograph films and film substitutes.- The carrier for the sensitive emulsion comprises a thin foil of metal such as aluminium united by a waterproof binding agent such as shellac to a flexible waterproof support capable of resisting tension, such as paper, celluloid, cellulose, or viscose, which may be rendered waterproof if necessary by coating with celluloid lacquer or nitrocellulose lacquer, and the surface of the foil is roughened before applying the sensitive emulsion. The emulsion may be applied directly to the foil, or this may be coated with a substratum layer as of cellulose, celluloid or viscose before the emulsion is applied. This substratum may be united to the foil by a binding agent such as shellac, and may be used as a vehicle for colours to be displayed. Alternatively, the carrier may comprise a roughened metal foil coated on both sides with a flexible transparent waterproof support capable of resisting tension, such as celluloid, or waterproofed cellulose or viscose, which may be coloured. Reference is made to kinematograph bands of opaque metallized paper.
Patent GB-740214-A (GB)
Title: Improvements in and relating to an arrangement for improving the operation of machine tools
IPC: B24B49/00
Filed: 1954-02-23
Abstract: 740,214. Lathe details; stop motions. SOC. GENEVOISE D'INSTRUMENTS DE PHYSIQUE. Feb. 23, 1954 [March 31, 1953], No. 5255/54. Class 83 (3). [Also in Group XXIII] A control system for a lathe includes a microphone 1, Fig. 1, responding to noise in the machine and connected to a detecting system by a circuit which includes an amplifier 2 and transmits only the signals corresponding to the engagement of the tool with the work. The amplifier, which has an attenuated lowfrequency response, feeds a load resistance 4 through a rectifier 3. The signal appearing across the load resistance passes through an integrating circuit 5 ... 7, which merges all impulses above a predetermined frequency, and a condenser 8, which suppresses all impulses below that frequency, to a cathode-ray oscilloscope 9. The sound produced by the engagement of the tool with the work produces impulses that are repeated in an irregular sequence and these produce a characteristic pattern on the oscilloscope. Instead of an oscilloscope a thyratron relay 34, Fig. 6, may be connected to the condenser 8 to control a motor 33 having two windings, one of which, a, produces a higher speed of rotation than the other, b. With the winding a energized the tool is fed rapidly until it engages the work and thus produces a signal to operate the relay 34 which closes a switch 35 to a contact 37 to operate an electromagnetic switch 39 and transfer the supply to winding b for slow feed during the cutting operation. Alternatively, the relay may be arranged to operate an electromagnetic switch 38 which interrupts the supply to the motor 33 at the end of the rapid approach movement of the tool. Subsequent feed during turning is then effected by a hand wheel 24, Fig. 5, connected to a screw 23 in engagement with a nut 19, which determines the position of a mass-loaded slide 11 carrying the tool. The nut 19 is slidably keyed to a socket 20 rotatable in a sleeve 25 and is rotated by a hollow shaft 28 and gearing 29... 32 from the motor 33 during automatic feed. A third electromagnetic switch 45 controlled by a gauge 41 stops the feed when the work 14 is to size.
Patent GB-754712-A (GB)
Title: Improvements in or relating to exhaust silencers
Inventor: MORLEY ROBERT ERIC
IPC: F01N1/08
Filed: 1954-01-28
Abstract: 754,712. Exhaust silencers. SILENCERS (BOLTON), Ltd. Jan. 28, 1955 [Jan. 28, 1954], No. 2582/54. Class 7(2) A baffle A for a silencer comprises a sheet-metal plate having a central area of frusto-conical form which directs the gases towards the wall of the silencer casing B and through apertures a<SP>7</SP> in the peripheral part a<SP>5</SP> of the plate, such apertures being in part defined by rearwardly directed tongues a<SP>6</SP> so that a helical motion is imparted to the gases and in close proximity to the wall of the casing. As shown in Fig. 3, there are four angularly spaced tongues a<SP>6</SP> of half-crescent shape, and the baffle has a peripheral flange a<SP>1</SP> for attachment to the casing B and a central aperture a<SP>4</SP> which permits a "straight-through" flow of a small portion of the gases. In Fig. 1, the casing B is closed by flanged end caps C, D fitted with inlet and outlet pipes E, F and has a centrally apertured baffle G and at least one baffle A, the baffles being spaced to divide the interior of the casing into a number of chambers which progressively decrease in size in the direction of flow of the gases.
Patent GB-743999-A (GB)
Title: Improvements relating to coupling devices for rotating apparatus
Inventor: HEYWOOD PETER JOHN
IPC: H02N13/00
Filed: 1953-01-29
Abstract: 743,999. Positive clutches. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Jan. 29, 1954 [Jan. 29, 1953], No. 2630/53. Class 80(2) A clutch is arranged so that when it is disengaged relative rotation between its driving and driven members 26, 24 produces an oscillatory axial movement of the driving member, and is controlled by a holding device including a metallic member (e.g., a disc 17) and a semi-conductor (e.g., 1) having polished surfaces which are moved into and out of engagement on axial movement of the driving clutch member, the metallic member and semi-conductor being retained in engagement to keep the clutch engaged on applying a suitable potential difference between them. The driving clutch member 26 rotates with a driving shaft 3 and pulley 37, and is urged to the left of Fig. 1, towards the driven clutch member, by a spring 27 compressed to a degree determined by an adjustable screw 35. The driven clutch member rotates with a shaft 25 and pulley 36. The driving clutch member 26 is provided with recesses and projections 32, 33, Fig. 3, connected by ramps 34 and engaged by pegs 31 in the driven clutch member. The compression of the spring 27 is insufficient to hold the driving and driven members together and allow torque to be transmitted through the clutch, so that when the driving shaft 3 is rotated, the driving clutch member 26 oscillates axially as the projections 33 &c. ride over the pegs 31. The clutch is engaged by applying a potential to the semi-conductor land metal disc 17 to reinforce the effect of the spring 27. The holding device, comprising the metal disc &c. rotates with the driving shaft 3. The semi-conductor 1 is bonded to a layer of soft rubber 4 in turn bonded to a metal plate 5 carried by an insulating plate 6 on the shaft 3. The metal plate 5 is engaged by a brush 12 through which the potential is applied, while the metal disc 17 is connected to earth. A second, similar, semi-conductor 2 is mounted in the holding device; a potential is applied to it to hold the metal disc 17 to the right against the force of the spring 27 and completely disengage the clutch. The disc 17 may alternatively be a semi-conductor, or the members 1 &c may be of metal to co-operate with a semi-conducting disc 17.
Patent GB-816398-A (GB)
Title: Preparation of metals and silicon and germanium from compounds thereof
IPC: C22B41/00
Filed: 1956-01-27
Abstract: Germanium and other metals are produced from their refractory nitrides or carbides or from organic compounds thereof by subjecting the starting materials to the action of an atmosphere of hydrogen at a pressure of at least 100 atmospheres while heated to a temperature of at least 400 DEG C., these conditions being maintained for a period of about 50 minutes to 3 hours.  The hydrogen may be mixed with nitrogen or a rare gas, at least 1 per cent of hydrogen being present in the gas mixture.  Examples are given of the treatment of titanium carbide, vanadium nitride, iron oxalate and iron formate, uranyl acetate, beryllium acetate, and of a mixture of iron oxalate and nickel oxalate.  Reference is also made to the treatment of the carbides or nitrides of zirconium, thorium, niobium, tantalum, chromium and uranium. The hydrogen may be circulated through a high-pressure autoclave containing the starting material, gaseous by-products of reaction being removed e.g. by freezing out with liquid air.
Patent GB-661411-A (GB)
Title: Improvements in and relating to calendar-clocks
IPC: G04B19/253
Filed: 1949-02-01
Abstract: 661,411. Date indicators. KAMPEN, M. T. VAN. Feb. 1, 1949 [March 18, 1948], No. 2749/49. Class 106 (iv). In a date-indicator a driving arm 14 with a spring-pressed catch 22 is driven with the hour hand of a clock and in alternate revolutions engages with a pin 23 a large or small tooth of a wheel 52 to be guided outside a blade 51 or inside to follow the contour of a fixed disc 8 which has a depression to expose a tooth 16 of a day name disc 5 further depressed potentially to expose a tooth 19 of a month name disc 6 and again to expose a tooth 20 of a number disc 7, these arcuate depressions being suitably dimensioned and spaced so that each day the driving member 14 advances the day name and number discs to expose the day and date through windows in the discs 7, 8 and in the clock dial. The number disc 7 carries a pivoted pawl 25 provided with a spring tail 28 and a tooth 26 extending backwards through the plane of the disc 8 whose inner periphery 30 it follows and a tooth 27 extending forwards through the plane of the month disc 6 lying normally within a sleeve 9 fixed to the clock dial 1, which sleeve forms a bearing for the three discs 5, 6, 7 which are spaced by fixed washers 10, 11, 12. The inner periphery of the month disc has twelve depressions suitably dimensioned and spaced according to the lengths of the months; the fixed disc 8 carries a rotatable wheel 46 formed with two sets of three depressions 49 alternating with high faces 47. Towards the end of each month the spring tail 28 engages a pin 29 in the fixed disc 8 which urges the teeth 26, 27 radially outwards through gaps in the peripheries of the discs 6, 7, 8 and sleeve 9 unless otherwise prohibited. Thus in a month of 31 days the teeth 26, 27 cannot swing outwards until the number disc begins to advance at the end of the 31st day and allows the tooth 27 to slip into an appropriate depression in the month disc which it then advances to expose a tooth 19 in the path of the pin 23 which subsequently advances it. At the end of the last day of a shorter month the number wheel advances and the appropriate depression in the month disc allows the tooth 27 to swing outwards and put the tooth 26 in the path of a pin 45 on the driving-arm 14 which then advances the number disc to one and in passing through the 31st position advances the month disc as before. At the end of February in normal years the tooth 26 engages a depression of the wheel 46 and advances it one step so that at the end of the 28th day of February in a leap year a high face 47 of the wheel prevents the tooth 26 from advancing the number disc until the end of the next day when it will advance the wheel 46 and effect transfer to the first of the next month as before.
Patent GB-495159-A (GB)
Title: Improvements in and relating to damping rollers for lithographic off-set printing presses and like machines
IPC: B41N7/04
Filed: 1938-01-28
Abstract: 495,159. Printing. RAPID ROLLER CO. Jan. 28, 1938, No. 2816. Convention date, March 11, 1937. [Class 100 (ii)] Damping-apparatus; copying documents.- A damping-roller for use in lithographic printing-machines, copying-machines, &c. is constructed with a metal shaft and a resilient water absorbent surface layer secured thereto composed of a rubber-like binder having distributed therethrough finely divided particles of a water absorbent material as a filler, some of said filler particles being exposed. at the surface of said layer. The filler may comprise from 25-75 per cent by weight of the mixture, and the rubber may be sponge rubber, or synthetic rubber prepared by polymerizing chloroprene, or may be halogenated or hydrohalogenated rubbers, or polymers of butadiene. Rubber accelerators, antioxidants, and /or softeners may be added. The rubber composition 14 may be secured by vulcanizing direct to a, metal shaft 12, Fig. 3, or a layer 13 of soft rubber may be connected to the shaft by vulcanizing, or cementing, and a surfacing layer of sponge rubber composition vulcanized thereto. A rubber sleeve 16, Fig. 6, composed of an outer composition layer 17, and an inner layer 18 of soft rubber may be anchored to a metal core. The filler may be composed of absorptive cotton, wool flock, artificial silk flock, powdered sponge, leather or cork powder, wood flour, or the like. The composite layer may be attached to a hard rubber core secured by key-ways to the metal core. In Fig. 8, a composite layer is shown in which the particles 21 of the filler occupy a large surface area.
Patent GB-305040-A (GB)
Title: Improvements in and relating to brush supporting and adjusting means for vacuum cleaners
IPC: A47L5/34
Filed: 1929-01-28
Abstract: 305,040. International General Electric Co., Inc., (Assignees of Cermak, M. A.). Jan. 28, 1928, [Convention date]. Vacuum cleaners.-Supporting and adjusting means for the rotary brush in the nozzle of a vacuum cleaner comprises at each end a pivoted support 15 capable of rotary adjustment by a lever 21 and carrying eccentrically a housing for a brush bearing 40 comprising a member 22, 23, 24 rigidly secured to the support, and a coacting member 26 pressed towards it by a spring 30. The contiguous edges of the parts 24, 26 are notched to receive vertical hinge pins 25. The housing for the brush bearings comprises a cup 39 and a screw cap 40; a felt washer 41 and retainer 42 prevents escape of lubricant.
Patent GB-645955-A (GB)
Title: Improvements in electronic amplifiers
IPC: H03F1/36
Filed: 1948-01-30
Abstract: 645,955. Valve amplifying circuits. SOC. INDEPENDANTE DE TELEGRAPHIE SANS FIL. Jan. 30, 1948, No. 2863. Convention date, Feb. 5, 1947. [Class 40 (vi)] In a multi-stage amplifier with negative feedback from the output to the input, a positive feed-back path in at least one of the stages situated before the output stage is provided which has means to cause it to decrease to zero or even to become negative for frequencies outside the frequency band of the amplifier. As shown, the overall negative feed-back path CR leads from a resistance RS across the output to a transformer T2 to the other coil of which the local positive feed-back is applied. A band filter 4 is provided to cause the positive feedback to disappear for frequencies outside the normal band of the transmitter. The combined feed-backs and the incoming signal are combined in transformer T1 connected to the grid of the first valve. In another arrangement filter circuits are arranged between the cathode of the valve and earth to neutralize the positive feedback at the desired frequencies. Further constructions utilize filters also in the main negative feed-back path.
Patent GB-553762-A (GB)
Title: Improvements in or relating to heels for footwear
IPC: A43B21/00
Filed: 1942-03-05
Abstract: 553,762. Boot-heels. NUNN, G. L. March 5, 1942, No. 2887. [Class 17 (ii)] A boot-heel is moulded from a material having a base of waste wood or paper &c. so as to leave a longitudinal passage into which a wooden dowel is subsequently driven.
Patent GB-1171884-A (GB)
Title: Improvements in or relating to Flush Toilets.
Inventor: HOWARD DURRELL UNGER
IPC: E03D5/012
Filed: 1968-01-19
Abstract: 1,171,884. Water closets. D. U. HOWARD and T: CARMICHAEL: 19 Jan., 1968, No. 2905/68. Heading E1C. A flush pedestal for vehicles, boats or aircraft has a shutter 29 between the bowl 21 and a waste receptacle 28 which is open during use of the pedestal and closed during flushing of the bowl, water being pumped from a reservoir 35 to the rim of the bowl 21 and passing out from the bowl via vertical slots 34 in a rubber ring 31 bonded to the bottom of the bowl. The shutter is opened either by a torque motor 30 or by a mechanical linkage via a seat cover 85 (Fig. 9, not shown) in a modified pedestal. The operation of the shutter and the pump during flushing may be controlled by electro-mechanical or electronic means and switches are provided associated with the seat 15 to open the shutter if the seat is raised or sat on. In the modified embodiment (Fig. 9), an electrical latch is provided to hold the seat cover 85 down while the flushing is in progress.
Patent GB-620910-A (GB)
Title: Improvements in apparatus for applying adhesive strip to cans or other containers
IPC: B65B7/28
Filed: 1947-01-30
Abstract: 620,910. Adhesive tape applying apparatus. COW & GATE, Ltd., and CHARLES, G. K. Jan. 30, 1947, No. 2931. [Class 73]  Apparatus for applying adhesive tape around the lids of containers of the kind in which a rotated can traps a depending adhesive strip between it and a roller, the strip being wrapped round the can as it revolves, is provided with a rotary can-holder which carries the can through the tape applying and severing stages, and releases the can after the completion of the operation. The tape 2 is mounted on the frame 5 of the machine at 3, passes over a pulley 6 and hangs down in front of a pivoted guide plate 9. The cans 18 are fed along a chute 19 on to a guide 26 along which they are pushed by a plate 25, reciprocated by a cam 31, between the jaws H of the can-holder. The jaws comprise two rotatable, circular, rubber-coated discs fixed opposite each other transversely to the guide 26, one of them being adapted to be moved towards the other by means of a bifurcated bell-crank lever 51 and rod 57, a bellcrank lever 62 and cam 65. The supports 43, 46 for the jaws H are pivoted at 48 and are moved from the position shown in full lines to that shown in dotted lines by means of a cam 50. After gripping the can, the can-holder moves to carry the can into contact with the tape, past the first applying roller 13 to a pivoted knife 10 which severs the tape, and under the final applying roller 75. In this position the cam 65 opens the jaws H, and the can is discharged down a chute 74. The can holder is rotated, to rotate the can, by means of a chain 69 pulled to the left in Fig. I by a weight 72, and which passes over a sprocket wheel, secured to one of the jaws H and is secured to a stop 70 on the arm 43. A fixed roller 73 engages the chain as the can-holder moves to the right, and as the weight 72 is pulled up the sprocket wheel rotates the jaws H. The weight 72 returns the can-holder back to its original position, in conjunction with the cam 50. Specifications 574,156 and 592,341 are referred to.
Patent GB-643664-A (GB)
Title: Improvements in and relating to electrostatic machines
IPC: H02N1/08
Filed: 1947-01-30
Abstract: 643,664. Influence machines. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. Jan. 30, 1947, Nos. 2958 and 2959. Convention dates, Sept. 20, 1945, and Sept. 21, 1945. [Class 35] In an electrostatic motor or generator of the Toepler type the charge conveying members are first charged by earthed association with the usual charged inductor member and then further charged by association with a series of inductor plates of successively increasing potential, the charge on the conveyer at the last inductor being at a higher potential than that possible between an inductor and conveyer plate. In its simplest form, Fig. 1, there are four pairs of inductor plates 1, 2, 3, 4, and six conveyers 6, each connected to a conducting segment 8 on a commutator 9. Each conveyer in turn passes through the first inductor 1 where it is earthed by contact with a brush 10 and leaves with a positive charge, the inductor 1 being negatively charged, say, - U. The successive inductors 2, 3, 4 are maintained at 0, + U, and + 2U respectively, the conveyer being connected to the output collector by a brush 11 whilst it is leaving the last inductor. It is stated that although the maximum permissible potential between inductor and conveyer is 2U, the potential generated is nearly 4U. In a modification, there are a further four charged inductors arranged in sequence after the four shown in Fig. 1. On entering the first of these, which is charged at 5U, the conveyer makes contact with the collector brush, the three following inductors being charged at 4U, 3U and 2U respectively. This arrangement is stated to increase the yield of the machine. Expressions are given in general terms for determining the most desirable inductor potentials, these potentials being either tapped off the machine directly or through a divider or supplied externally. It is also possible to interconnect the plates in various ways to give outputs of various currents and voltages. Specification 643,660 is referred to.