baber/WOPTO huggingface dataset:
Patent GB-514760-A (GB)
Title: Improvements in electrical musical instruments
IPC: G10H1/08
Filed: 1938-06-02
Abstract: 514,760. Electric musical instruments, MIDGLEY, A. H., and MIDGLEY, A. M. June 2, 1938, No. 16565. [Class 88 (ii)] An electric musical instrument comprising a number of electric oscillation generators of the required musical frequencies, busbars associated with playing key switches and stop key switches for selecting any one or more of such frequencies and applying them to a common output impedence having one end connected to a common return lead to the generators, has an impedence connected between each busbar and the common return lead in parallel with a second impedence in series with the common output impedence, the output impedence being connected in an amplifier and loudspeaker circuit. A series of generators G1, G2, G, ... which may be of 'the phonic wheel type and of which three are shown, generate the frequencies of a tempered musical scale, the same note being used for different partials in several tones. There are at least sixteen busbars B1, B2, B,... for each keyboard, only three being shown. Each key actuates a rod R1, R2, R3... for closing key switches K1, K2, K3 ... connected to corresponding generators through resistances KR1, KR2, KR3 ... Stop keys actuate similar rods STR1, STR2 ... for closing stop switches S1, S2, S3 ... for contacting certain of the busbars required' to produce the tone required, and these switches are connected through resistances SR1, SR2, SR3 ... to a common output impedence OR. Each busbar is connected to a common return lead E through a resistance BR1, BR2, BR3.. To ensure the correct increase in volume when more than one note is sounded, the resistances BR1, BR2, BR3 ... are made equal to the impedance of a generator and the resistances SR1 ... are made high in comparison with the impedence OR. An instrument with two manual and/or pedal keyboards has sixteen busbars on the swell, two sets of sixteen on the great, and four such sets on the pedal relays. The additional set on the great enables a multiple switch to couple the great to the swell and two of the additional sets on the pedal keyboard enable coupling to be effected respectively to the great and swell keyboards. The remaining two sets on the pedal are connected to suitable pedal stops for the swell and great organ, the stop resistances being connected respectively to the two output resistances of the swell and great. Consequently each key on the great manual operates 32 switches and each key on the pedal keyboard operates 48 switches. The coupling arrangements are similar to those described in Specification 499,771. Instead of employing tempered scale notes as partials, true partials may be used involving the use of considerably more note generators.
Patent GB-1458438-A (GB)
Title: Multiwalled bag
IPC: B65D30/08
Filed: 1974-04-16
Abstract: 1458438 Multi-walled bags WILHELMSTALWERKE GmbH PAPIERSACKFABRIKEN 16 April 1974 [18 April 1973] 16567/74 Heading B8K A bag comprising a multi-layer outer paper wall 10 and a polyethylene liner 13 is provided with slits 16 in the liner which, when a block bottom is formed, provide air vents from the inside of the bag. The liner is fixed to the outer wall at 18 and one or both corners of the bag bottom are provided with the air vent.
Patent GB-715566-A (GB)
Title: Improvements in and relating to the loading of open railway trucks
IPC: E01B27/04
Filed: 1952-07-02
Abstract: 715,566. Endless conveyers. SCHEUCHZER SOC. ANON., FILS D'A. July 2, 1952 [March 15, 1952], No. 16628/52. Classes 78 (1) and 78 (4) A loading device for a number of railway trucks movable as a group comprises an elevator extending over an end truck and feeding material to a number of other conveyers in series each translatably supported by two trucks. Each truck carries two supports H and H<SP>1</SP> comprising four legs across brace and convergent supports for a roller K upon'which the conveyer framework rests. The conveyer framework supports one end conveyer belt roller r at a higher level than other end roller r' so that the end of the upper belt overhangs the end of the adjacent belt and feeds material thereto. The conveyers are linked by connections F\ F<SP>2</SP>. As the loading proceeds the truck G<SP>3</SP> is moved to the left and the machine C to the right according to the rate of loading until the truck is filled, then the conveyer T<SP>2</SP> is uncoupled from the conveyer T<SP>1</SP> and moved so that it rests on supports H, H' on the truck G'. The truck G<SP>2</SP> is next to be loaded, the trucks G<SP>1</SP> and G<SP>2</SP> are moved to the right and the machine C to the left, the truck G<SP>2</SP> being loaded from the left end. The last truck is loaded by the elevator E. Loading may take place from the elevator end first, the remaining trucks being loaded subsequently by a conveyer added as each truck is filled.
Patent GB-707755-A (GB)
Title: Improvements in or relating to self-winding clocks
IPC: G04B5/20
Filed: 1951-07-13
Abstract: 707,755. Clocks. GAZDA, A. July 13, 1951 [July 26, 1950], No. 16646/51. Class. 139. A self-winding clock for a vehicle comprises a casing, a mainspring for the time mechanism, a ratchet wheel, a train of gears connecting said ratchet wheel with said mainspring, a member pivotally mounted at approximately its centre at the centre of the casing, a weight at one end of said member, the other end of said member being of sector shape and having an arc shaped recess therein, the opposed arcuate edges of said recess having a common centre of curvature in the pivot point of the pivotally mounted member and pivoted pawls fixed to said member at said opposed arcuate edges of said recess to actuate said ratchet wheel to wind said mainspring upon oscillation of said member due to said weight in either direction. The mainspring 5, Fig. 1, is connected through a train of gears 6 to a ratchet wheel 7 disposed in arc-shaped slot 15 in a pendulum member 17 pivoted at 16 and carrying a weight 18. A pair of pawls 9 and 10 carried by the member 17 are spring-urged into engagement with the ratchet wheel 7 so that when the pendulum oscillates in either direction one of the pawls steps on the ratchet wheel. The clock is in a casing 26 positioned in the hub 28, Fig. 3, of the steering wheel below a magnifying lens 29.
Patent GB-1149306-A (GB)
Title: Improvements in or relating to drum-type cutters
IPC: E21C25/10
Filed: 1967-04-12
Abstract: 1,149,306. Mineral-mining cutter drums. EICKHOFF MASCHINENFABRIK U. EISENGIESSEREI m.b.H. GEBR. 12 April, 1967 [16 April, 1966], No. 16677/67. Heading E1F. The or each loading flight of a mineralmining cutter drum is so mounted on the drum as to be displaceable towards the axis of rotation of the drum against a radially outward biassing force acting on the flight when the flight encounters mineral that has not been cut from a face by the cutter tools that proceed the flight on the drum. The biassing force may be the centrifugal force on the flight arising from rotation of the drum or may be due to spring means. Preferably the flight or each flight is formed of a series of overlapping plates 9 arranged to extend at right angles to the axis of rotation of the drum on a helical line about the circumference of the drum for radial movement of the slotted housings 6 by which they are supported on the drum.
Patent GB-594848-A (GB)
Title: Slip lasted shoe with tucked in heel cover
IPC: A43B3/10
Filed: 1945-07-02
Abstract: 594,848. Boots and shoes. BRAUN, W. July 2, 1945, No. 16799. Convention date, July 25, 1944. [Class 17 (ii)] A wedge heel for a slip-Lasted platform type shoe with heel bevelled or narrowed from,top to bottom has a substantially vertical slit in the outer surface to accommodate surplus platform covering material and improve the fit of the cover. The platform comprises a cushioning pad at the forepart and an integral or separate wedge heel 16 in one or more parts, and is attached to a sock lining 12 assembled with an upper 11 and platform cover 13 on a last, by spotting with cement. The cover 13 is cut full enough to enable the shoe to be readily slipped on the last with the cover turned back around the upper to permit the platform to be positioned and secured, and, after wiping the cover 'over the platform, to be secured to the underside of the platform, excess leather or fabric of the cover being accommodated and secured in the slit 20. More than one such slit may be provided, if desired. The application of the invention to various shapes of.heel is described.
Patent GB-421063-A (GB)
Title: Improved process for manufacturing fatty esters
IPC: C11C3/06
Filed: 1933-06-13
Abstract: Mono- and diglycerides are prepared by reacting a triglyceride with glycerin at 140 to 205 DEG  C. in the presence of an alcoholate of an alkali metal.  Suitable alcohates include sodium glyceroxide, potassium alcoholates and alcoholates prepared from ethyl alcohol. In examples, sodium is dissolved in glycerin and the solution is reacted with hydrogenated cottonseed oil.  The products may be used as emulsifying agents for mixtures of fatty or mineral oils with water in the production, for example, of cosmetics.  Specifications 412,766 and 421,284 are referred to.ALSO:Mono- or di-glycerides, prepared by reacting a triglyceride, for instance hydrogenated cotton-seed oil, with glycerine, are employable for emulsifying fatty or minerals oils with water.
Patent GB-923634-A (GB)
Title: Photographic objective with continually variable focal length
IPC: G02B15/14
Filed: 1959-05-19
Abstract: 923,634. Vari-focal objective. CARL ZEISSSTIFTUNG, [trading as CARL ZEISS, [Firm of]]. May 19, 1959 [Sept. 17, 1958], No. 16876/59. Class 97 (1). A variable focal length objective comprises a positive lens Group I, a negative lens Group II and positive and negative lens Groups III, IV. The focal length is varied by axial movement of lens Group II, the positive lens Groups I, III also being moved so as to maintain the image position in one plane. Preferably, the distance between the lens Groups I and III is maintained constant. Lens Group I may have an additional movement for forming on objects at different distances. French Specifications 1,112,979 and 1,120,271 are referred to.
Patent GB-256555-A (GB)
Title: Improvements in gloves
IPC: A41D19/02
Filed: 1926-07-06
Abstract: 256,555. Steinert, J. July 6, 1926. Gloves.-In the manufacture of gloves without fourchetes from a blank such as is shown in Fig. 1, with the addition of separate pieces for the fronts of the second and third fingers, the slits 9, 10 between the second and 'third fingers meet at points so as to form an angle pointing away from the fingers. The corresponding incisions 11, 12 in the finger pieces 7, 8 are.cut as shown in Figs. 2 and 3, and the thumb piece 15, Fig. 4, is arranged with projections 17 and forms after doubling and stitching to an opening 18 an oval ring reaching to the base joint of the index finger.
Patent GB-746173-A (GB)
Title: An improved shuttle guard for looms
IPC: D03J1/24
Filed: 1952-07-07
Abstract: 746,173. Loom shuttle guards. GREENWOOD, A., and HARTLEY, F. July 7, 1953 [July 7, 1952], No. 16994/52. Class 142 (2). A shuttle guard 29 is fixed to a support 21 pivotally mounted on a bracket 1 fixed to the sley cap 3. A rod 7 pivotally mounted in the bracket 1 has a cranked end which, when the guard 29 is lifted, engages a recess 25 in a raised part of the guard support 21 so as to lock the guard in its inoperative position. On starting the loom, as the sley moves towards beat-up position, a finger 11 on rod 7 is raised by an abutment mounted on the breast beam, removing the cranked portion of rod 7 from the recess 25, whereupon the guard 29 is returned to its operative position by a spring 27. Specification 745,345 is referred to.
Patent GB-1016791-A (GB)
Title: Pressure-deficiency cut-off or safety valves for gas meters
Inventor: AUSTEN COLIN ROOK
IPC: G01F15/00
Filed: 1961-05-10
Abstract: 1,016,791. Valves. UNITED GAS INDUSTRIES Ltd. May 10, 1962 [May 10, 1961], No. 17013/61. Heading F2V. A pressure deficiency cut-off valve for gas meters, has the valve 5 loaded on to its seat 2 in the inlet 1 by a spring 16 when supply pressure fails, and opened, when an outlet from chamber 6 is closed, by pressure building up via metering orifice 18 and acting on differential diaphragms 10, 71 having a vent 19 between them. The valve may be hinged and operated by a single diaphragm or piston. The orifice may be formed as a valve in the cutoff valve on its seat and interconnected with the prepayment mechanism.
Patent GB-297337-A (GB)
Title: Improvements in internal-combustion-engines using acetylene and in gas generators therefor
IPC: F02M25/10
Filed: 1927-06-27
Abstract: 297,337. Gebhardt, H. June 27, 1927. Making acetylene by action of water vapour on carbide; wick-feed generators; removing sludge from generators.-Acetylene for use in an internal-combustion engine is generated by grinding calcium carbide to a fine powder, water being mixed therewith either in the form of air laden with moisture or by means of a damped pad. In one, form the carbide from a hopper 3, Fig. 2, extending over the engine cylinders drops into a grinding device consisting of rollers 10, Figs. 1 and 2, driven from the engine cam shaft 4 through worm gearing 5, 6, spindle 7 and bevel wheels 8, 9; the driving wheel 8 may engage teeth on the periphery of the wheel 9 or teeth 16 on the hub, the wheel 8 being displaced by a hand control 15. The radiator 20 for the engine water-cooling system has the usual fan 30; the air from this fan is delivered through a pipe 35 with throttle 34 into a passage 36 into which drops the finelyground carbide. The air picks up the powder and carries it into a long chamber 37 connected by separate pipes to the engine cylinders. The chamber 37 is placed in a box 17 which has a water tube 18 at the top and at the bottom a collecting vessel 25 covered by a grid. Water drops from the tube 18 through interchangeable nozzles 18 into the box and moistens the air therein, this moistened air being drawn by the engine suction through holes 39 into the chamber 37 to act on the carbide and produce the acetylene. A screw conveyer 40 is placed in the chamber 37 to remove sediment. The tube 18 and vessel 25 are placed in circuit with the engine cooling system. A gauge glass 29 allows inspection of water level in the box. Each cylinder has a terminal exhaust port and also a valve-controlled exhaust outlet; the two exhausts are connected by pipes 49, 48 to a ribbed manifold 50. In another arrangement, the carbide ground by rollers drops on to rotating drums 52, 53. Fig. 5, covered with felt or similar material. The felt is moistened by water supplied through the hollow spindles 65, 66 carrying the drums. Scrapers 60, 61 remove residues from the drums, the residue being carried away by an endless belt 63. The carbide is delivered from a container by a screw conveyer to the bottom of a bucket conveyer 70, which lifts the carbide into a hopper 3. The acetylene is withdrawn from the gas generator by a compressor 72 and delivered into a reservoir 74. The driving gear for the grinding mechanism and compressor is thrown in and out of action by a clutch worked by a piston sensitive to the pressure in the reservoir. The reservoir 74 is connected by a pipe 85, Fig. 9, to a distributor 77, which delivers to the engine cylinders by pipes 86 - - 89, air being compressed in the cylinders prior to the entry of the acetylene. The drums with moistened felt may be replaced by an endless band dipping into water or by a plate holding water and covered by permeable material.
Patent GB-319042-A (GB)
Title: Improvements in or relating to photographic printing apparatus
IPC: G03B27/46
Filed: 1928-06-14
Abstract: 319,042. Kodak, Ltd., Case, C. Z., and Ord, P. R. June 14, 1928. Enlarging, copying, and reducing.-An enlarger with interdependent machanism for intermittently feeding the sensitized sheets and for actuating a shutter comprises a light-source C adjustable relatively to the negative D, a mirror E, a lens E<1>, a shutter F and a feed shoot K. The sensitized sheets are fed into the shoot by feed mechanism (not shown), and are held by a stop L until the numbering device M operates. To prevent injury to the fabric, a resilient pad is provided opposite the number stamp. When released by the stop L, the sheet falls into the exposure position and is held there by a stop 0, a pressure plate N clamping it against a glass screen whilst the shutter F opens and closes. The exposed sheet is then released by the stop 0, and the next sheet falls into the exposure position. The stops L and 0, the numbering device M, the pressure plate N and the shutter F are actuated by cams on a vertical shaft P driven by the electric motor R. The exposure is controlled by moving the light C, but the cams are capable of being adjusted for this purpose. A transparent mirror H placed between the negative and the mirror E enables an image of the negative to be seen through the inspection window G and compared with a standard negative.
Patent GB-214134-A (GB)
Title: An improved varnish
IPC: C09D101/18
Filed: 1923-07-03
Abstract: 214,134. Snape, J. W., and Mohlman, G. r. July 3, 1923. Varnishes.-A varnish is composed of 2 oz. of clear celluloid, 2 drams of spirits of camphor, 10 oz. of methylated spirits, 30 oz. of acetone, and 1-1¢ drams of castor oil.
Patent GB-753401-A (GB)
Title: Improvements in and relating to cooling arrangements for the windings of dynamo electric machines
IPC: H02K3/24
Filed: 1954-06-11
Abstract: 753,401. Cooling dynamo-electric machines. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. June 11, 1954 [June 11, 1953], No. 17267/54. Class 35. In a machine with internal cooling of the rotor end windings, the fluid inlets are in the circumferentially extending parts and the outlets adjacent but outside the core. As shown in Fig. 1, which is a partial development of the end windings, the end windings have inlets 14 for coolant to flow through longitudinal ducts 6, Fig. 3, in the conductors, the coolant emerging at exits 15 into spaces 10 between wedges .7, 8 which hold the end windings in position. The wedges 8 have passages 20 to allow additional coolant to join the end winding coolant and both pass through passages 16 in wedges 7 leading to axial ducts 17 in the core teeth from which the coolant can reach the air gap. There can be axial ducts at the bottoms of the rotor conductor slots.
Patent GB-650070-A (GB)
Title: Improvements in intercommunication telephone systems
IPC: H04M9/00
Filed: 1948-06-28
Abstract: 650,070. Intercommunication systems. MODERN TELEPHONE CO., Ltd., MARKS, L. V., and BRISCOMB, D. W. June 28, 1948, No. 17326. [Class 40 (iv)] In an intercommunication telephone system employing one home line, such as HL1, HL2, HL3, Fig. 1, for each station, such as I, II, III, and two common battery feed wires forming the common return line of the speaking circuits, each station has its transmitter T included in one arm of a substantially balanced Wheatstone bridge, its receiver R connected across one diagonal of the bridge and the battery wires across the other diagonal, its home line and selector S being connected to the junction of the receiver and transmitter. The transmitter may be a microphone, Fig. 1, or the secondary winding 4 of a transformer whose primary winding 5 is connected in series with a microphone M across the battery B, Fig. 2. The object is to reduce cross-talk.
Patent GB-780538-A (GB)
Title: Silica-filled polyamides
IPC: C08K3/36
Filed: 1955-06-16
Abstract: Finely-divided silica, the particles of which have maximum dimensions in the range 5-200 millimicrons, is dispersed in an aqueous solution of polyamide forming substance and the dispersion is heated to drive off water to polymerize the substance to an inherent viscosity of at least 0-4, precautions being taken to ensure that agglomeration or sedimentation of the silica does not occur.  To produce products having increased melt viscosity and stiffness, suitable for extrusion, the silica particles should comprise 2-20 per cent of the final composition. Agglomeration of such particles may be prevented by ensuring that the conductivity of the silica in a 10 per cent aqueous dispersion is less than 5 X 10-4 mho per cm., and that the dispersion of the silica in the solution of polyamide-forming substance is less than 2.3 X 10-3 mho per cm.  To achieve this the substance should be an amino-acid or lactam but small quantities of diamines and dibasic acids can be tolerated.  The presence of salts should be avoided, the silica being deionized for this purpose.  The conductivity can also be reduced by increasing the quantity of water present in the initial stages of condensation.  Other substances such as anti-foaming agents, dispersing agents, colour, heat and viscosity stabilizers, catalysts, other fillers and plasticisers may be included in the reaction mixture.  Preferably water is retained until the bulk of the polyamide forming substance has polymerized.  Several examples are given.  In Example 2, 715 parts of 6-caprolactam are added to 259 parts of deionized silica sol containing 75 parts of silica in the form of discrete dense amorphous spheres having an average diameter of 17 millimicrons and a specific surface area of about 160 square metres per gram.  The specific conductance of the sol (at 10 per cent SiO2) was 1.5 X 10-4 mho/cm.  The mixture was warmed until fluid, 54 parts water added and the whole subjected to a polymerizing schedule.  The product was a tough white mass with the silica dispersed as submicroscopic particles. Using an undeionized sol having a conductivity of 5 X 10-3 mho/cm., an unhomogeneous product was obtained.  Tables are given of molecular weights, viscosities and mechanical properties of the products of the examples and of comparative unfilled polymers. Specifications 461,236, 504,714, 506,125, 535,421, 554,718, 571,018, [all in Group IV], 667,154 and 699,557, [both in Group III], are referred to.