baber/WOPTO huggingface dataset:
Patent GB-1060173-A (GB)
Title: Frequency diversity transmitting system
IPC: H04B7/12
Filed: 1965-01-29
Abstract: 1,060,173. Radio signalling. STANDARD TELEPHONES & CABLES Ltd. (International Telephone & Telegraph Corporation). Jan. 29, 1965, No. 4039/65. Heading H4L. In a frequency diversity system, at the transmitter, Fig. 1 (not shown), the modulating signal from 10 is supplied via a summing unit 12 to a pair of modulators 15, 21 supplied with carrier frequencies f1, f2 respectively. The resulting modulated signals are supplied alternately via an electronic switch 28 to the power amplifier 29, e.g. a klystron, the switch 28 being controlled by a signal derived from an oscillator 24 via a frequency multiplier 26 and wave shaper 26<SP>1</SP>. The reference frequency from oscillator 24 also modulates the carriers f1, f2, via unit 12 for synchronizing at the receiver. A receiver. Fig. 2, includes conventional pre-selector, amplifier and frequency-changer stages 31, the I.F. signals being supplied alternately, via electronic switch 38 to frequency-changing stages 44, 68 so that the two outputs are brought into frequency correspondence for addition at 54. To ensure that the two signals are in phase they are supplied to a phase detector 52 controlling one of the local oscillators 47. The circuit 54 supplies a demodulator 56 and the utilization means 59 includes a filter rejecting the reference signal. The reference signal is selected by a filter 68 and via a frequency multiplier 62 controls the switch 38. In an alternative receiver, Fig. 3 (not shown), the signals are combined after demodulation.
Patent GB-1529069-A (GB)
Title: Propellant charge igniter
IPC: F42C19/08
Filed: 1976-02-02
Abstract: 1529069 Propellant igniters DYNAMIT NOBEL AG 2 Feb 1976 [6 Feb 1975] 04051/76 Heading F3A A propellant charge igniter comprises an outer case 1 open at the forward end 2, an inner case 3 closed by a base 5 formed with predetermined breaking positions 6 and containing a charge 7 for intensifying the ignition effect of ignition means located in the rear of the outer case 1, and a ring 10 which, upon ignition of the intensifying charge 7 and the splitting open of the base 5, exerts a radial pressure on the mouth 2 of the outer ease and results in a plastic expansion of the mouth and the creation of a gas-tight seal between the mouth and the wall of the igniter chamber of the weapon breech in which the igniter is located. The ring includes an extension 13 which fills a space 9 between the inner and outer cases; and the ring may have a cross-section which is double-wedge shaped, wedge-shaped or trapezoidal. The ring is preferably formed in situ from a filled, curable resin. A sealing layer 14 of bitumen is provided on the base 5.
Patent GB-1195526-A (GB)
Title: Photographic Reversal Process
Inventor: ERNST OTTO
IPC: G03C5/50
Filed: 1969-01-24
Abstract: 1,195,526. Photographic reversal processing. AGFA - GEVAERT A.G. Jan. 24, 1969 [Feb. 14, 1968], No.4065/69. Heading G2C. In photographic reversal processing in which an imagewise exposed silver halide material is developed in a black-and-white developer and the remaining silver halide is subsequently fogged and developed, the second development is carried out in the presence of a boranocarbonate, e.g. of sodium or potassium, as a fogging agent. The boranocarbonate may be present in the second developer or in a bath which precedes the second development. The silver halide material may be black and white, a colour-coupler-containing colour material or a silver-dye-bleach material.
Patent GB-641509-A (GB)
Title: Improvements in or relating to spot welding processes and to apparatus for carrying out said processes
Inventor: KING WILLIAM FREDERICK LAURENC
IPC: B23K11/11
Filed: 1948-02-12
Abstract: 641,509. Electric welding. BRISTOL AEROPLANE CO., Ltd; Feb. 12, 1948, No. 4166. Drawings to Specification. [Class 83 (iv)] Indentations and nipples on spot-welded joints are subsequently removed or reduced on one face by applying pressure and electric current through the spot-welding electrodes to a plate placed over the joint. For aluminium alloy sheets of from 16 SWG to 12 SWG, having spot-weld indentations not more than 0.004 of an inch deep a plate of copper about 0.25 inches thick is used, which may extend towards or beyond the adjacent welds to press out ripples. The plate may be mounted on a welding machine and moved to and from the work either manually or automatically and may be coupled to a device for holding the work.
Patent GB-577225-A (GB)
Title: Improvements in or relating to combing machines
IPC: D01G19/02
Filed: 1944-03-07
Abstract: 577,225. Combing-machines. BIGGIN, C. H. March 7, 1944, No. 4207. [Class 120 (i)] A combing-machine comprises a feeding mechanism 2, 3 and a large comb circle 1 of the Noble type associated with a nip member or plate 5 having a continuous nip motion. The nip comprises a revolving circular plate 6 co-acting with the plate 5 and adapted to impart a continuous nip motion to the sliver. Alternatively the nip may comprise a moving apron. The combing cylinder 7 for combing or separating the noil is provided with progressively finer pins and is cleared by a brush cylinder operating in association with a stripping roller and doffing knife. The combed fringe is drawn off by rollers 10 and leathers 11.
Patent GB-1178914-A (GB)
Title: Improvements in or relating to Disc Brakes
IPC: F16D55/224
Filed: 1967-01-27
Abstract: 1,178,914. Disc brake. ALFRED TEVES G.m.b.H. 27 Jan., 1967 [25 June, 1966], No. 4209/67. Heading F2E. A mechanically operated disc brake provided with operating levers 3, 4 on either side of the disc 9, has brake pads 5, 6; 6, 8 formed with wedge surfaces 21, 22, 23, 24 which bear directly against the brake caliper parts 13, 14 to provide a servo action. The pads are actuated by levers 3, 4, each pivoted at one end 15, 16, to the caliper, the other ends being connected to a common actuating means such as a cable to be moved together on braking to create play between the levers and the casing and permit displacement of the levers due to disc wobble. The pads can be removed from the brake, without separating the brake caliper parts, after removal of the arms and the return springs 20. The arrangement may be used with a pressure medium operated brake as an extra parking or hand-brake.
Patent GB-1216702-A (GB)
Title: Ceramic glazes
Inventor: DIMARCELLO FRANK VINCENT
IPC: H05K1/03
Filed: 1968-01-26
Abstract: 1,216,702. Ceramic glaze. WESTERN ELECTRIC CO. Inc. 26 Jan., 1968 [30 Jan. 1967], No. 4219/68. Heading C1M. A ceramic substrate glaze comprises the following components in weightper cent: Al 2 O 3  4-10; SiO 2  38-43, CaO 0-10; BaO 5-18; B 2 O 3  0-10; PbO 13-22; Bi 2 O 3  5-15; TiO 2  0À5-2; K 2 O 0À5-2; As 2 O 3  0À25-1. In making the glaze, Al 2 O 3 , SiO 2 , PbO, TiO 2  and As 2 O 3  are added in the oxide form, CaO, BaO and K 2 O are used in the carbonate form and B 2 O 3  is added in the acid form, and Bi 2 O 3  as Bi(NO 3 ) 3 5H 2 O. The mixed components are heated to- 1350 to 1450 C. to form a molten glass, which is poured into cold water thereby fragmenting the glass into small particles, and grinding them to a desired particle size, e.g. 0À002 inch in diameter. The glaze can be applied to a high density Al 2 O 3  substrate containing at least 85% by weight of Al 2 O 3  by, for example, spraying as a wet spray with a binder, or in the dry form as a preformed transfer tape. After applying the glaze it is allowed to dry in air and is then fired. Heating is continued to 1000 to 1250 C. A glaze thickness of 0À0008 to 0À016 inch is. desirable. In an example, a spray composition is prepared from a glass frit and methylmethacrylate dissolved in ethylene glycol monoethylether acetate, which is applied to a 96 wt. per cent Al 2 O 3  substrate.
Patent GB-778871-A (GB)
Title: Pyridinediol oxides and acetates thereof and their preparation
IPC: C07D213/89
Filed: 1955-02-14
Abstract: The invention comprises 2-methyl-3,6-pyridinediol-1-oxide and its 3-mono and 3,6-diacetate.  The said pyridinediol oxide may be prepared by reacting an aqueous solution of a hydroxylamine mineral acid salt with a 2,5-di-RO - 2 - (a ,a  - di - RO - ethyl) - 2,5 - dihydrofuran, where R is methyl or ethyl, the resulting 2 - methyl - 3,6 - pyridinediol - 1 - oxide may be acylated to form the 3,6-diacetate, which may be boiled in an alcohol to form 2-methyl-3-acetoxy-6-hydroxy-pyridine-1-oxide.  The 2,5-di-alkoxy-2 - (a ,a  - dialkoxyethyl) - 2,5 - dihydrofuran may be obtained by boiling 2-acetylfuran with methyl or ethyl orthoformate in methanol or ethanol using a sulphonic acid catalyst and electrolytically alkoxylating a methanolic or ethanolic solution of the resulting ketal to give the desired product.  The sulphonic acid may be p-toluene sulphonic acid, benzene sulphonic acid or methane sulphonic acid.  In an example, 2-acetyl furan is boiled with methyl orthoformate in methanol using p-tuluene sulphonic acid as a catalyst and the resulting methanolic solution of 2-(a ,a -dimethoxyethyl) furan is electrolysed with the addition of ammonium bromide in methanol whereby 2,5-dimethoxy-2(a ,a -dimethoxyethyl)-2,5-dihydrofuran is isolated.  The latter is dissolved in water and added to aqueous hydroxylamine hydrochloride whereupon 2-methyl - 3,6 - pyridinediol - 1 - oxide precipitates on standing.  Acylation of this product by boiling with acetic anhydride and pyridine gives the diacetate, which on boiling with methanol gives the 3-monoacetate.  2-Acetyl furan may also be converted to the ketal using ethyl orthoformate in ethanol or methanol.  In this way the R groups in the ketal may be both methyl, both ethyl or mixed. The compound 2 - methyl - 3,6 - pyridinediol - 1 - oxide has antibacterial activity.
Patent GB-815319-A (GB)
Title: A new or improved holder for a brush, mop or the like
IPC: A47K11/10
Filed: 1958-02-11
Abstract: 815,319. Brush holders. GARRATT, T. T. C. March 12, 1958 [Feb. 11, 1958], No. 4393/58. Class 19. [Also in Group XVII] The pivotal connection of each of the shell portions 7 of a toilet brush container with the base 1 thereof is such that the portions 7 can only be separated from the base when in the open position. Each portion 7 has a lug 12 from which projects a pivot pin 13 and in which is formed a channel 14. When the portions 7 are in the fully open position relatively to the base 1 the channels 14 cease to engage ribs 15 on the base and the lugs 12 can slide axially of the apertures 5 in the base so that the pins 13 disengage from the grooves 6 formed in the base at the sides of the apertures 5. The portions 7 are opened and closed by a brush engaging ribs 16 and projections 8 integral with each portion. The projections 8 are of such a shape that the projection 8 on one portion overlaps the crescent-shaped base 9 of the other portion. The portions 7 are locked together about a brush by a ferrule on the handle embracing a raised lip 11 about the semi-circular opening in the top of each portion.
Patent GB-1477621-A (GB)
Title: Method and apparatus for the heat treatment of materials on a travelling hearth
IPC: F27B9/18
Filed: 1976-02-04
Abstract: 1477621 Heat treatment of materials SALEM CORP 4 Feb 1976 [6 Feb 1975] 04461/76 Heading F4B Apparatus for the simultaneous heat treatment of volatile and non-volatile containing materials comprises a furnace 10 with rotary hearth 13 and spaced feed shoots 24. Volatile containing materials 27 deposited on the hearth through one feed shoot is maintained separate and spaced apart in a concentric row from non-volatile containing materials deposited through the other feed shoot. Heat treatment of the volatile containing materials causes volatiles to be given off and these are burnt with oxygen containing gas supplied through the ports 20 to supply heat for the treatment of the non-volatile containing materials. One row of processed material discharges through the central area 21 and the other row through a side exit 23. Sets of nobbles 26 may be fitted to engage the materials and advance them to the exit openings. The hearth may be in two parts (17) and (18) Fig. 1 (not shown), and the two parts may rotate in the same or opposite directions. In a further embodiment the hearth is designed to receive three separate rows of materials (28), Fig. 4 (not shown). Solid objects may be processed in accordance with the invention in spaced apart concentric rows in a furnace fitted with a pusher arm (36), Fig. 9 (not shown). The volatiles may be generated from a liquid in a recessed area (39), Fig. 8 (not shown), of the hearth.
Patent GB-1157255-A (GB)
Title: Improvements in or relating to Conveyor Systems
Inventor: BRITTAIN ANTHONY SIMEON
IPC: B65G47/31
Filed: 1967-01-30
Abstract: 1,157,255. Endless conveyers. NABISCO Ltd. 25 Aug., 1967 [30 Jan., 1967], No. 4531/67. Heading B8A.  An endless conveyer 10 is, in the main, driven at a speed slightly in excess of the speed of a second endless conveyer 12 to which it transfers trays 11 for engagement by the pusher lugs 37 on the second conveyer 12, the speed of the first conveyer 10 being temporarily reduced below that of the second conveyer when the trays arrive in advance of the lugs. An arm 73 driven in synchronization with the conveyer 12 interrupts a photo-electric cell 74 when a lug 37 is in a position to receive the leading tray 11 and a further photo-electric cell 75 registers the trays 11 when in a position in advance of the desired position for synchronized feeding to the lugs 37 such that when the photo-electric cells are simultaneously interrupted a servo-motor 48 is operated to drive the planar wheels of an epicyclic gear-box 41, the input of which is driven from the drive means 40 of the second conveyer and the output of which drives the first conveyer, so as to effect a reduction in the speed of the conveyer 10. The period of operation of the servomotor is variable. A pair of endless belts 18 having a foam rubber article engaging surface 21 are disposed on opposite sides of the conveyer 10 to guide the trays therefrom on to a pair of endless belts 62 disposed between the conveyers 10 and 12 and driven at a higher speed thereto to remove the trays clear of the photo-electric cell 75. The conveyers 18, 62 are driven from the drive means for the conveyer 12, through appropriate gearing.
Patent GB-441660-A (GB)
Title: Improved dyeing apparatus
IPC: D06B3/26
Filed: 1935-02-13
Abstract: <PICT:0441660/IV/1> <PICT:0441660/IV/2> Apparatus for dyeing piece goods made from animal, vegetable or artificial fibres, particularly closely woven or felted material, at atmospheric pressure, comprises a dye tank or bath through which the fabric is passed, in endless form C, as shown, or as a continuous length.  One or more series of pipes D, D<1> are fixed in staggered arrangement relative to the line of feed of the fabric C between them, and situated at a distance not more than six inches from the fabric.  Air or steam or a mixture of both is admitted to the dye bath V through perforations in the pipes to set up a turbulence of the dye liquor in the vicinity of the fabric and a difference of pressure of dye liquor on the two sides of the fabric.  The axes of the perforations in the pipes D, D<1> are not in the same plane.  Specifications 14871/89, 11254/06, [both in Class 15], 207,211, 327,168, [both in Class 15 (i)], 356,860, 386,520, and 436,875 are referred to.  The temperature of the dye bath may be controlled by closed steam coils E.
Patent GB-464713-A (GB)
Title: Improvements in and relating to paper making and the like machines
IPC: D21F9/04
Filed: 1936-02-18
Abstract: 464,713. Cylinder paper making machines &c. RUBEROID CO., Ltd., and PROUDLOCK, S. Feb. 18, 1936, No. 4918. [Class 96] In a cylinder board or paper making machine, or a concentrator &c., a rise or fall in the level of pulp in the vat 1 is used to increase or reduce, respectively, the rate of removal of white water from within the cylinder mould. The vat level may be maintained substantially constant by a weir 2 from which pulp flows to a float chamber 3. The control may be applied to removal of surplus white water, or also to that returned to the mixing box. In addition, variations in the level in the mould may be used to control outlet side of the pump supplying the mixing box. The float 12 may work between resilient, adjustable stops 26, 27 and actuate a valve 18 through a lever 16 which may be adjustably counterbalanced at 22. Alternatively a servomotor, relay, or telemotor may be used. The level within the mould may be indicated at 31.
Patent GB-400635-A (GB)
Title: An arrangement for converting the frequency of alternating current by means of controlled arc rectifiers
IPC: H02M5/00
Filed: 1932-02-19
Abstract: 400,635. Control of A.C. motors. SIEMENSSCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. Feb. 19, 1932, No. 4994. Convention date, Feb. 20, 1931. [Class 38 (iii).] A frequency changer employing controlled arc rectifiers in which the grid voltage comprises components of both frequencies, is used to control the speed of alternating current machines. The frequency of the output of the converter may be increased from zero upwards by control of the frequency of one of the grid voltages and hence the converter may be used for running up asynchronous motor. The speed of non-synchronous machines may be controlled within predetermined limits, e.g. 5 per cent above or below synchronism, as shown in the Figure, by connecting a converter between the rotor and the supply line 20, the rotor winding forming the output of the device. The grids are energized from the line 20 and from a frequency changer 40 which may be used in conjunction with a copying machine 42, both machines being on the shaft of the main machine. Control of the magnitude and phase of the grid voltages is effected manually by transformers 43 or 41 so as to control the magnitude and direction of the slip energy flow and so control the speed of the machine.
Patent GB-1022428-A (GB)
Title: Improvements in and relating to bitumen boilers
Inventor: WILLIAMS ANDREW DEWAR
IPC: C10C3/12
Filed: 1965-02-05
Abstract: 1,022,428. Bitumen boilers. WILLIAM WILLIAMS & SONS (GLASGOW) Ltd. Feb. 5, 1965, No. 5041/65. Addition to 803,360. Heading E1T. The outer wall of the insulating jacket of the boiler described in the parent Specification is corrugated.
Patent GB-315190-A (GB)
Title: Improvements in rotary perforating machines
IPC: B26F1/20
Filed: 1929-02-15
Abstract: 315,190. Mellor, J. H. Feb. 15, 1929. Rotary perforating machines. - A machine for perforating paper, card &c. comprises a pair of intergeared spindles a, b, one of which is provided with a cutter w, the other being provided with co-operating dies v. The tools are axially adjustable. A composite feed roller g is mounted in brackets f pivoted on the spindle a adjustable weights f<1>, f<2> being provided to regulate the pressure between the roll g and discs h or d mounted on the spindle b. The feed roll may be positively driven. The spindle a is mounted in eccentric bearings m which may be simultaneously adjusted by a bar n which also carries adjustable work-strippers o. The tool spindles may be mounted in an inclined plane. A tail roller q which may be idle or driven from the spindle b may be provided. The work is passed along a feed board p provided with a side gauge. The machine may be driven manually or by power.
Patent GB-1427841-A (GB)
Title: Image recognition
IPC: G06V10/88
Filed: 1973-02-01
Abstract: 1427841 Character recognition systems PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 1 Feb 1973 [3 Feb 1972] 5093/73 Heading G4R [Also in Divisions H3-H5] The image of an object is differentiated by use of an electro-optic device of the type described in Specification 1,387,712. The differentiation is effected in the device by subtraction of the image and the shifted image, the shift being very small and being translational, rotational, or radial (i.e. being a shift in magnification). The second differential may be obtained by subtraction of two images, shifted in opposite directions, from the original image. The technique may be employed in character recognition by holographic methods. In this application the differentiated image to be recognized is applied to a hologram of differentiated reference images, or alternatively the non-differentiated image is applied to a hologram of the double differentiated reference images. Successive shifted images of an object are focused on to the electro-optic device which forms a stored charge representation of the first or second differential. This representation is read out optically by reflecting polarized laser light from the charged surface. The reflected light may be directed to a hologram for recognition purposes. The differentiation improves the signal to noise ratio of the optical correlation process. Reference has been directed by the Comptroller to Specification 1,102,936.
Patent GB-489785-A (GB)
Title: Improvements in or relating to the formation of paper and like bottles, cups or containers and blanks therefor
IPC: B65D5/02
Filed: 1937-03-20
Abstract: 489,785. Paper bottles &c. WARE, H. M., and WARE & CO., Ltd., H. M. March 20, 1937, No. 5099. [Classes 18 and 66] One of the base-forming flaps of a prismatic form paper or like bottle &c., preferably the first one to be folded inwardly, is provided with an integral or attached tab which is bent back over the edge or edges of the immediately overlying flap or flaps. The tab may be provided at the free end of the flap as at f, Fig. 3, or at the side edge as at g, Fig. 6, and in the last-mentioned case tabs may, as shown, be provided at each edge of the flap. The tabs may be perforated to allow the wax or other proofing material to percolate.
Patent GB-808915-A (GB)
Title: Improvements in or relating to motion measuring apparatus
IPC: A61B5/11
Filed: 1955-02-21
Abstract: 808,915. Electric measuring systems. CORTI, U. A. Feb. 21, 1955 [Feb. 25, 1954], No. 5133/55. Class 40 (1). The variation of forces applied to a platform 1 (Fig. 1) is measured by the outputs of inductive transducers 2 supporting four legs 1a of the platform 1, each leg being rigidly connected to a diaphragm 4 (Fig. 2) carrying a coil 5a movable in the gap of a fixed magnet 5b. The voltage outputs of the transducers 5a are added and integrated to give the vertical component of the total additional force applied to the platform.
Patent GB-1268032-A (GB)
Title: Control circuit for low-power direct-current motors
Inventor: SCHROTT ALEXANDER
IPC: H02P7/29
Filed: 1970-02-03
Abstract: 1,268,032. Control of D.C. motors. UHRENKOMBINAT RUHLA VEB. 3 Feb., 1970, No. 5139/70. Heading H2J. A permanent magnet D.C. motor 11 is energized in either direction of rotation by the control circuit shown, wherein a transistor bridge 5, 8, 16, 17 has the transistors 16, 17 controlled by respective pulse generators and the transistors 5, 8 controlled by respective circuits including the resistors 9, 10 and diodes 12, 13, the arrangement being such that energization of the transistor 16 turns off transistors 5, 17 and turns on transistor 8 to provide a circuit for the motor 11 through members 3, 8, 12, 14, 16, whilst energization of transistor 17 turns off 8, 16 and turns on 5 to provide a circuit through members 2, 5, 13, 15, 17. When the direction of rotation is to be reversed, the conducting transistor 16 or 17 is turned off so causing the associated transistor 5 or 8 to be turned on and provide braking for the motor 11 whose E.M.F. is applied to the circuit comprising members 2, 5, 7 or 3, 6, 8. In this way the motor is braked before the relevant transistor 16, 17 is turned on and excess voltages across the transistors are prevented.