baber/WOPTO huggingface dataset:
Patent GB-173609-A (GB)
Title: Improvements in or relating to tool grinding devices
IPC: B24B3/36
Filed: 1920-10-04
Abstract: 173,609. Gouldbourn, J., Ricks, F., and British United Shoe Machinery Co., Ltd. Oct. 4, 1920. Cutting-edges, shaping; gauges; work-holders.-In a machine for grinding the cutting-tools of tapernail tacking machines, devices are provided on the cutter-support for locating, in succession, the two different cutters, and a gauge is provided for testing the accuracy of grinding. The cutters 12 to be ground are of the form shown and are of different thicknesses, the thicker cutter having its cutting- edge 40 radial to the centre of the concave side of the cutter, and the thinner cutter having its cutting- edge slightly to one side of a radial line. The machine comprises a grinding-wheel 1 of the form shown in Fig. 3, which grinds with its side face, and a pivoted cutter-support 10 adapted to be oscillated by hand to move the cutter-edge across the grinding-wheel. The support 10 is inclined towards the wheel to give baching-off to the cutter, and is formed at the upper end of an arm 4, which is rotatably mounted on a shaft 3 fixed in the machine frame. The arm has lugs 5 thereon engaging a pin 6 for limiting its oscillatory movement, and is movable along the shaft 3, to adjust the position of the cutter, by a screwed rod 7 operated by a hand-wheel 8. The support 10 has on its upper face a pin 13 for positioning the front end of both cutters, and a pin 17 with a cylindrical head 16 for positioning the rear end of the cutters, the thin cutter just passing under the head and contacting with the pin 17, and the thick cutter engaging the head. The cutters are clamped in position by a block 18 moved in a slot in the support by an eccentric operated by a pivoted handle 20. The progress of the grinding is tested by a gauge-face 24 on an arm 25 secured to a shaft 26 mounted in the arm 4. The gauge is moved into and out of position, through an arm 28 pivoted to a rod 31, by the oscillatory movement of the arm 4, movement of the arm 4 into the grinding position moving the gauge to the inoperative position, Fig. 3. When the cutting-edge is to be tested, the arm 4 is swung clear of the grinding position, and the rod 31 moves until stopped by a spring 33 and a collar 34 thereon; the gauge then moves into the operative position. The edge of the cutter is correctly ground when the gauge face and the end of a pin 36 on the arm 25 engage simultaneously along the edge and with a stop 37 respectively. In a modification, the gauge may be moved by a fixed cam which engages the arm 28, a coiled spring on the shaft 26 pressing the arm 25 towards the cutter. Specification 1493/93 is referred to.
Patent GB-603557-A (GB)
Title: Improvements in or relating to devices for checking football pool and like results
IPC: A63F3/06
Filed: 1945-10-25
Abstract: 603,557. Line indicators. HOLLAND, H. J. Oct. 25, 1945, No. 28123. [Class 100 (iii).]. [Also in Group XV] A device for checking football pool or like results comprises .a sheet or board 1, on which forecast results are entered on one or both faces in columns, and at least one cursor 3 in association which passes completely round the board and on which are entered published results; the cursor being brought into register with a forecast column of results by sliding. Four projections 2 may be provided to keep the cursor on the board. Columns and horizontal lines may be provided on the sides of the boards and horizontal lines on the cursor. The cursor may consist of two strips fastened top and bottom with or without a spacing member, or may consist of a continuous strip which may pass through slots in the board which limit its travel. The board and cursor may be made from any rigid or semi-rigid material on which it is possible to write, such as a plastic material, or cardboard.
Patent GB-519699-A (GB)
Title: A device for inverting sound record discs automatically
IPC: G11B17/02
Filed: 1938-09-27
Abstract: 519,699. Gramophones. TSUCHIYA, T. Sept. 27, 1938, No. 28134. Convention date, Jan. 17. [Class 40 (ii)] A device for inverting record discs comprises a horse-shoe shaped member 1 adapted to be raised and lowered about an axis 2 for lifting a record from the turntable and lowering it back again, and is characterized by the provision of a single semi-circular inverting arm 5 pivoted at its ends to lugs 3 on the side arms of the member 1 and adapted to be swung up in a direction counter to the member 1 to cause the record to turn about its points of contact with the side arms of the member 1 and thus to become inverted before being replaced on the turntable. The member 1 is lifted and lowered by means of a cam 14 on a shaft 13; and another cam 12 on the same shaft serves to rock the inverting arm 5 through a lever 9 pivoted at 10 and connected to a rack 8 operating a pinion 7 fast with a pivot pin 4 of the inverting arm. This arm may have a rubber covering 5<1>.
Patent GB-947344-A (GB)
Title: Mixing process and apparatus in particular for producing polyurethane plastics
Inventor: MCEVOY RICHARD THOMAS
IPC: B29C44/36
Filed: 1961-08-02
Abstract: A mixing apparatus and process (see Division B1) may be used for the continuous preparation of low-density flexible polyurethane foams. In an example a polyisocyanate is added to a mixture of polyol, water, catalyst, emulsifier and colourant.  The polyisocyanate was a mixture of m-tolylene diisocyanate containing 80% of the 2, 4 isomer and 20% of the 2, 6 isomer; the polyol was prepared by copolymerizing adipic acid with a glycol and a triol. The emulsifier was a polyethylene glycol ricinoleate; the catalyst, N-methyl morpholine, and the colourant a copper phthalocyanine filter cake.  2250 G/min of polyol premix and 900 G/min tolylene diisocyanate mixture were supplied to the mixer which was operated at 4,000 r.p.m. with residence time of 1 sec. The volume of the discharged reaction mixture increased 46-fold after 1 minute, and after curing provided a foam of density 1.6 lb./cu. ft.  In another example the polyisocyanate and polyol components were pre-mixed and partially reacted to form a pre-polymer which was afterwards mixed with a catalyst mixture.  The polyol was a mixture of adipic acid and diethylene glycol, and the polyisocyanate and catalyst were the same as in the first example. The pre-polymer was prepared by mixing 390 parts of tolylene diisocyanate mixture and 1,000 parts of the polyol and agitating for 30 minutes under an atmosphere of carbon dioxide. 2,840 G/min. of the pre-polymer and 200 G/min. of catalyst were supplied to the mixer under the same conditions as before.  Volume expansion of the product was 35 fold and the cured foam has a density of 2.1 lb/cu. ft.
Patent GB-144193-A (GB)
Title: Improvements in the manufacture of reinforced concrete or cement beams and the like
IPC: B28B23/04
Filed: 1919-04-22
Abstract: 144,193. Wilson, W. April 22, 1919. Moulds.-At each end of a mould for use in the manufacture of reinforced-concrete beams, a pair of upwardly-directed angle-irons 1 are secured to a foundation A by bolts 4 passing through elongated holes 5 in the base flanges 2, the spaces between the four uprights being filled by boards D, E. Cross-rods 6, having sleeves 7 mounted thereon, are arranged as required between the uprights 1, and the reinforcing-wires C are attached to the sleeves and stretched between the uprights at the ends of the mould, the elongated holes 5 permitting the movements of these uprights. Side frames 8 are provided with n cross-rod 6<a> and sleeve 7<a> to increase the tension of the reinforcing-wires, screw means being provided to lower the rod 6<a> as required. The rods 6, 6<a> can be withdrawn when the concrete has set, leaving the sleeves 7, 7a embedded in the concrete.
Patent GB-248059-A (GB)
Title: Improvements in and relating to fog or other signals
IPC: B63B45/00
Filed: 1924-11-25
Abstract: 248,059. Fellows, H. M. Nov. 25, 1924. Navigable courses, systems of indicating; foghorn signals; producing intermittent audible signals.-Ships are steered along a predetermined course during foggy weather by the emission of long or " dash '' signals and short or " dot " signals respectively from two separate stations on opposite sides of the course under the control of a common timing device, the two sets of signals being so spaced and timed that when the ship is steering a correct course the signals will be heard simultaneously. According to one arrangement, a series of " dot " signals is emitted in an interval of time corresponding to the duration of one " dash " signal so that, if the ship is steering a correct course, the normal signal heard will be simultaneous " dashes " and " dots, " but when any deviation from the source occurs one or more " dot " signals will be heard before or after the " dash " signal. In another arrangement, the duration of the series of " dot " signals is such that the first " dot " signal precedes and the last " dot " signal succeeds the " dash " signal, so that the normal signal to be heard on the ship is " dot, " " dash, " " dot, " while any deviation from the course will cause the " dash " to be displaced to the beginning or end of the signal heard. Or the series of " dot " signals may be of shorter duration than the " dash " signal. In the apparatus shown for carrying out the signalling, a drum 18 rotated at a predetermined speed by clockwork or a motor carries a broad contact 24 associated with a horn 1 for emitting the " dash " signals, and a series of narrow contacts 25 associated with the horn 2 for emitting the " dot " signals, the contacts 24, 25 being directly opposite to each other or spaced apart according as to whether it is desired to emit the signals simultaneously or at a determined time interval apart. The contacts are arranged to close electric circuits through solenoids 11, 12 which respectively control the operation of valves 5, 6 for admitting from tanks 3, 4 compressed air for actuating the horns 1, 2. The invention is also stated to be applicable for guiding aircraft. Specification 196,649 is referred to.
Patent GB-222693-A (GB)
Title: Improvements connected with mincing machines
IPC: B02C18/00
Filed: 1923-11-10
Abstract: 222,693. Spong, J. W. Nov. 10, 1923. Mincing.-In a mincing-machine wherein the barrel is made of sheet or tubular, tinned metal, the interior surface is slightly roughened or abraded whereby the meat or the like is prevented from slipping on the tinned surface. The abrading may be effected by a wire brush which is passed through, or revolved within, the barrel.
Patent GB-458384-A (GB)
Title: Improvements relating to power-driven vehicles
IPC: F16D67/00
Filed: 1935-10-14
Abstract: 458,384. Propelling ships and aircraft. FOTTINGER, H., 172, Berlinerstrasse, Charlottenburg, Berlin. Oct. 14, 1935, No. 28367. Convention date, Oct. 13, 1934. [Classes 4 and 114] [See also Groups XXXII and XXXI] In a power-driven rail or road vehicle, ship, or aircraft provided with an energy-storing By-wheel (such as is described in Specification 432,670, [Group XXVI]), for assisting the main drive, at least part of the energy of bhis fly-wheel may be employed in driving additional driving- wheels, or propellers in the case of water and aircraft, in order to avoid overloading and consequent "slip" of the wheels or propellers driven by the main source of power. Fig. 2 shows a drive applied to a rail vehicle, in which the main motor 1 rotates the driving axle 5, and two energy-storing fly-wheels 8, 8<1> may be driven from it, either separately or together, through disconnectible couplings 4, 9<1>, or may be connected by couplings 10, 10<1> and gearing 13, 14 to separate driving axles 5<11>, 51 respectively, which may be associated with the same vehicle as the axle 5, or another vehicle, such as a locomotive tender. A similar drive employing only one fly-wheel 8 and additional driving axle is described. The fly-wheel, instead of being driven by the main motor 1, may be driven by an auxiliary motor, such as gas or steam turbine supplied with the exhaust gas or steam from the main motor or engine, or by live steam. Fig. 4 shows a locomotive in which the fly-wheel 8 is driven either through gearing by a high-speed auxiliary engine supplied with steam from the boiler or, as shown, by a turbine 25. It may be coupled to either the front or rear axle, or both, by disconnectible couplings 271, 2711. The turbine may be reversible, for driving the locomotive in reverse. Where electric power is employed the fly-wheel may be driven by an auxiliary motor, which can be connected in series with the main motor on starting and in parallel at higher speeds. Fig. 7 shows a construction in which a casing 33, pivoted on the main driving axle 5 of a bogie or undercarriage and resiliently supported at 34 by springs, contains the driving motor 1<1>, the fly-wheel 8, the gearing and couplings 30, 9 through which the motor drives the axle 5 and the fly-wheel, together with the coupling 10 and gearing between the fly-wheel and a shaft with universal joints 11, which shaft transmits the drive from the fly-wheel to the additional driving axle 5<1> by way of gearing in a casing 35 pivoted on this axle and supported at 36. In cases where a part only of the energy of the fly-wheel is supplied to the additional driving shaft, the remainder may be applied to the main driving shaft, or used for other purposes, and a differential gear is preferably provided between the two shafts. The fly-wheel may be carried on the bogie or undercarriage of a trailer, tender, or the like, one or more wheels of which it drives, and be supplied with power from the main vehicle by way of small diameter steam pipes or high-speed shafts.
Patent GB-1191217-A (GB)
Title: Arrangements for reducing unipolar-produced Circulating currents in rotating machines
IPC: H02K5/16
Filed: 1968-06-14
Abstract: 1,191,217. Dynamo-electric machines. ALLIANZ VERSICHERUNGS-A.G. 14 June, 1968 [16 June, 1967], No. 28382/68. Heading H2A. To reduce the flow of circulating currents along a rotor shaft e and particularly through the bearings thereof, stacks of annular metal plates d are attached to the stator with a small air gap between them and the rotor.
Patent GB-723845-A (GB)
Title: Improvements in or relating to liquid pressure servo-motor systems
Inventor: GARDNER CHARLES VICTOR
IPC: F15B13/01
Filed: 1952-11-11
Abstract: 723,845. Fluid-pressure servomotors; hydraulic transmissions. AUTOMOTIVE PRODUCTS CO., Ltd. Oct. 20, 1953 [Nov. 11, 1952], No.28412/52. Classes 69 (2) and 136. In a liquid pressure servomotor system including a double-acting servomotor 10 and a control valve 16 therefor, the control valve, when in its neutral position, connects each end of the servomotor to one of a pair of passages 31, 32 leading from a source of liquid pressure such as the accumulator 38, a non-return valve 34 or 35 being provided in each of the passages to prevent flow of liquid from either end of the servomotor cylinder 11 through the passages and thus lock the servomotor in any position to which it is set. The control valve 16 has a pair of circumferential grooves 17, 18 separated by a land 19, and a pair of diametral passages 22, 23 permanently connected by an axial bore 21 closed at both ends. The grooves 17, 18 are always in communication with passages 28, 29 leading to opposite sides of the servo-piston 12, and in the neutral position shown, are also in communication with circumferential grooves 25, 26 leading to the passages 31, 32 respectively. On movement of the valve 16 to either side of the neutral position, the grooves 17, 18 are cut off from the respective grooves 25, 26 and connected to grooves 24, 27 respectively, the latter due to the passages 21, 22, 23 and a connection 37 being permanently connected to a low-pressure reservoir 41. The accumulator 38 is supplied by a pump 40, the delivery of which is passed back to the reservoir 41 by a cut-out valve 42 when the accumulator pressure reaches a predetermined upper limit, the valve 42 restoring the connection to the accumulator at a predetermined lower limit of pressure. A follow-up connection may be provided between the valve 16 and the servomotor. The effective areas at opposite sides of the piston are equal.
Patent GB-747431-A (GB)
Title: Improvements in or relating to testing arrangements for telecommunication systems
Inventor: CAMERON HECTOR FRANCES LOVETT
IPC: H04B1/60
Filed: 1953-10-15
Abstract: 747,431. Unattended repeaters. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd. Sept. 30, 1954 [Oct. 15, 1953], No. 28510/53. Class 40 (4). In a communication system comprising separate " go " and " return " paths each including amplifiers located at intermediate stations, the inputs and outputs respectively of the amplifiers at a station are connected through pairs of bandpass filters such as FI1, FO1, FI26. F026, the pass-bands of which are different, and different from those at any other station on the same line. The arrangement facilitates testing of the system and the filters may be arranged to be switched into circuit when testing is required. Test signals of different frequencies corresponding to those shunted by the filters at the respective stations are transmitted separately by oscillator VOA at station A and the returned signals are measured in a receiver RA. Similar tests may be effected from station B, and intermodulation components arising from test signals transmitted simultaneously from both ends may be arranged to fall within the pass-band of a particular filter and be measured on their return. Examples are given of suitable test frequencies. Reference has been directed by the Comptroller to Specification 728,584.
Patent GB-1044710-A (GB)
Title: Telephone tone ringer
Inventor: WHY JOHN FREDERICK
IPC: H04M19/04
Filed: 1965-07-06
Abstract: 1,044,710. Substation circuits. STANDARD TELEPHONES & CABLES Ltd. July 6, 1965, No. 28534/65. Addition to 986,310. Heading H4K. The ringer circuit of the parent Specification is modified by the provision of a diode D2 which is in series with the thermistor TH2 and shunts the oscillator when the switch S is in the medium position. A further diode D3 and resistor R1 shunt the thermistor, while diodes D4, D5 form a voltage regulator.
Patent GB-616946-A (GB)
Title: Improvements in coal cutters
IPC: E21C27/28
Filed: 1946-09-24
Abstract: 616,946. Coal cutters. COPPEE ET CIE, E. Sept. 24, 1946, No. 28567. Convention date, Oct. 19, 1945. [Class 124] In a coal cutter, the percussive tool 1 and its driving device 18 are rotatable vertically as a unit by means of trunnions 2 between the uprights 3 of a column which is rotatable horizontally between its supporting base 5 and locking device 8, and which is movable with said unit when it is disengaged. For this purpose, the uprights 3 carry brackets 9 for wheels or rollers 10, and a handle 21 is provided.
Patent GB-483495-A (GB)
Title: A method and apparatus for rotating holders for articles or electrodes in an electro-plating bath
IPC: C25D21/10
Filed: 1936-10-21
Abstract: 483,495. Electroplating apparatus. MARTIN, J. Oct. 21, 1936, No. 28640. [Class 41] Articles to be plated are mounted in rotatable holders which may be adjusted to various positions in the bath in any of which they are connected e.g. by a flexible shaft to the driving means ; anodes may alternatively be so mounted. In the apparatus shown the holder 7 is provided with a flanged enlargement 8 having a spherical base 9 seated in a cup in a bracket 11 into which it is introduced by a radial slot. The bracket is secured to a clip 13 which may be sprung over a bus-bar 14 at any point. The member 8 is provided with a square shank 16 for engagement with an insulating socket 17 at the end of a flexible driving shaft 6. A number of bus-bars 14 are provided, the shafts of the various holders being connected to a number of gear wheels driven by a single motor ; the bus-bars are themselves adjustable. Anodes mounted in this fashion may be employed in the internal plating of a number of cylinders supported on the base of a tank ; means for moving the anodes up and down during rotation may be provided. The Provisional Specification also describes the plating of the bearing surfaces of a crankshaft while it is rotated about the axis of the main bearings, an anode being disposed opposite or near each main bearing and the crank pins and crank webs being protected from deposit by a coating of wax. The wax is afterwards removed from the crank pins and the shaft bearings are coated with wax. The shaft is then rotated in the bath about the axis of the crank pins with an anode near to each pin.
Patent GB-142046-A (GB)
Title: Improvements in or relating to water tube steam generators
IPC: F22B17/10
Filed: 1919-11-19
Abstract: 142,046. Williams, H. L. Nov. 19, 1919. Water-tube boilers; headers. - A water-tube boiler comprises front and rear water and steam drums 5, 7 connected by tubes 8, several series of water tubes 1 connected at front and rear to corresponding W or V shaped or sinuous headers 2, 3, which communicate with the drums 5, 7 by way of independent uptake and downtake tubes 4, 6 respectively. The headers 2, 3 are furnished with cover-plates for the inspection, cleaning, and withdrawing of the tubes. A single steam and water drum only may be employed.
Patent GB-427190-A (GB)
Title: Improvements in and connected with screw propellers
IPC: B63H1/12
Filed: 1933-10-17
Abstract: 427,190. Screw-propellers. MILLAR, A. L., 34, Westbourne Road, Barnsbury, London. Oct. 17, 1933, Nos. 28730/33 and 24238/34. [Class 114] A screw-propeller blade is developed from a flat figure having two straight sides 3, 4 and a convexly curved side 2, and in its screw form the latter is arranged to lie in a plane at right angles to the axis of rotation with the curved convex portion forward in the sense of rotation to form the leading edge 2, the trailing edge 3 remaining straight and being inclined outwardly from its root and forwardly in the direction of thrust. The blade sections have a straight driving surface 6 and straight rear surface 7 joined thereto by a curved edge 8, the thicker end being along the leading edge 2. The sweep of the leading edge is that of an involute spiral. The propeller may have one blade only.
Patent GB-785503-A (GB)
Title: Improvements in or relating to the electro deposition of a metal on pieces of metal or metallic alloys
IPC: C25D5/34
Filed: 1955-10-10
Abstract: 785,503. Electrolysis. BOZEL-MALETRA SOC. INDUSTRIELLE DE PRODUITS CHIMIQUES. Oct. 10, 1955 [Oct. 21, 1954], No. 28757/55. Class 41. A process for treating the degreased surface of a piece of metal or metal alloy, e.g. of aluminium or an alloy thereof, steel or iron, which normally has a surface layer of impurities, e.g. an oxide layer, comprises subjecting the degreased surface to an acid etching and then connecting it as cathode in an electrolytic bath and maintaining the current at a level below that necessary to deposit metal on the cathode, and then increasing the current strength to or above that level in a period of not less than five minutes. The acid etching may be carried out by dipping in hydrochloric or hydrofluoric acid or a mixture of the two, and is followed by washing in water. The current may be increased continuously or in steps, e.g. at one minute intervals by 10 amps. to 80 amps, and the current may be decreased prior to each increase. The piece of metal may be connected in circuit before immersion in the bath. A bath for chromium plating is 250 gms. per litre chromic acid and 2.5 gms. per litre sulphuric acid. If the plating bath does not normally function to give off hydrogen, it is modified by the addition of an acid corresponding to the principal anion (in an acidic bath) or of an alkaline cyanide (in an alkaline or cyanide bath), e.g. a nickel-plating bath is (figures are gms. per litre), nickel sulphate 140, sodium sulphate 150, sodium chloride 24, boric acid 30, and sulphuric acid 4 to 9. The initial degreasing may be by dry sandblasting or abrasive cleaning in a liquid, or may be in two phases, firstly in a solvent, e.g. trichloroethylene, and then as cathode in an electrolytic bath, e.g. in which is dissolved soda, sodium carbonate, or an alkaline cyanide or phosphate.