baber/WOPTO huggingface dataset:
Patent GB-1210186-A (GB)
Title: Moving formant device for musical instruments
IPC: G10H1/14
Filed: 1969-07-15
Abstract: 1,210,186. Electrophonic musical instruments HAMMOND CORP. 15 July, 1969 [1 Aug., 1968], No. 35552/69. Heading G5J. [Also in Division H3] A moving formant circuit in an electrophonic musical instrument includes a two-transistor band-pass amplifier 9 having a twin T feedback network 28 of which the arm 34, 35, 36 may be progressively cut out by applying a varying control voltage to the FET 40. The band-pass of the amplifier is then progressively changed from a lower to a higher frequency band and the musical tone delivered to the speaker 71 moved from a muted trumpet to a normal trumpet note. A progressive change in the resistance of the FET 40 is accomplished by the keying circuit 50, the transistor 45 and the timing circuit 41, 42, 43. When the transistor 45 is conductive the resistance of the FET 40 is low, but when the transistor 45 is rendered non-conductive in consequence of the closure of the key 60 the voltage at the FET gate rises as shown by the curve 72, the resistance of the FET rises and the band-pass of the amplifier 9 rises from its lower frequency (mute) to its higher frequency (trumpet). The band-pass of the amplifier 9 may be fixed at its higher frequency (trumpet) by closure of a switch 47 to ground the base of the transistor 45. In an alternative circuit (Fig. 2) with a transistor (80) in place of the FET 40, a low frequency oscillator (84) run at a vibrato rate of about 6.5 Hz is provided in place of the grounded connection at switch 47. An LDR (light dependent resistor) may be used as the voltage responsive variable resistor in place of the FET 40 on the transistor (80) of the alternative embodiment. Suitable valves for the various components are given.
Patent GB-769118-A (GB)
Title: Improvements in and relating to electric dry cell batteries
IPC: H01M6/46
Filed: 1955-02-07
Abstract: 769,118. Batteries. JOURNEE, H. J. Feb. 7, 1955 [Feb. 10, 1954], No. 3561/55. Class 53. A dry battery casing 1 has a number of compartments as shown in Fig. 2, which are arranged so that each accommodates a cell, the cells being successively orientated by 90 or 180 degrees with respect to one another. Fig. 3 shows' how a number of cells are arranged relatively to one another when the cells are orientated 180 degrees in relation to one another, whereas in Fig. 4 (not shown), the cells are arranged to be orientated by 90 degrees.
Patent GB-1167612-A (GB)
Title: Supply Installation for Direct-Current Mains on board Vehicles
IPC: H02J1/10
Filed: 1967-01-25
Abstract: 1,167,612. Electricity supply systems. LICENTIA PATENT-VERWALTUNGS G.m.b.H. 25 Jan., 1967 [28 Jan., 1966], No. 3694/67. Heading H2H. An electricity supply installation such as may be used in a ship comprises a D.C. mains 14 supplied by one or more generators in the form of a synchronous A.C. generator 10 together with a rectifier 12, the generator being constructed without a damping winding and the rectifier being directly connected to the mains without the use of a circuit breaker. The field system 15 of the A.C. generator is supplied normally from the mains 14 by way of controlled rectifier 18 but are supplied by way of transformer 20 and rectifier 24 in the event of a fault on the mains 14. The rectifier 12 may be structurally combined with the generator 10 and the generator may be compounded.
Patent GB-282234-A (GB)
Title: A new or improved device for extracting nails and the like from corrugated metal
IPC: B25C11/02
Filed: 1927-02-10
Abstract: 282,234. Batten, W. C., Cowling, F. W., and Row, M. A. Feb. 10, 1927. Nail extractors.-Nails are extracted from corrugated metal by lever-jaws l pivoted at h to a bridge piece d slid up and down in a framework by a screw e. The jaws are connected at their top ends by a spring i and when lowered towards the head of a nail their cam surfaces k acting on pins k<1> cause the jaws to open to receive the nail head while in reverse movement the jaws close on the head and extract it. The base c of the device is shaped to fit the corrugations.
Patent GB-141458-A (GB)
Title: Improvements in or relating to pencils
IPC: B43K23/00
Filed: 1919-02-17
Abstract: 141,458. Jones, A. W. Feb. 17, 1919. Pencils; pencil-holders. - The lead, crayon, or other writing. material of a pencil is made of double-convex cross-section as shown in Fig. 1, to avoid necessity for sharpening. The surface may be ribbed or fluted longitudinally. A suitable holder is shown in Fig. 3, and comprises a wooden stem a having a central passage of corresponding cross-section, the stem being split longitudinally and provided with a coned end b and an adjustable cap e for clamping the writing-material c.
Patent GB-556832-A (GB)
Title: Spring forks for cycles and motor cycles
IPC: B62K25/08
Filed: 1942-03-24
Abstract: 556,832. Cycle forks. WEBB & CO., Ltd., H. C., and TAYLOR, F. W. March 24, 1942, No. 3920. [Class 136 (iii)] A telescopic spring fork for' a cycle &c. has each moving telescopic tube u reinforced by a tubular strut j disposed parallel thereto and in front thereof. The lower end of the strut is brazed &c. to a socket or spigot o on the wheel-carrying jaw-piece n, and its upper end k is removably attached to a bridge-piece i connecting the two struts. The bridge i is apertured and sleeved to slide on the non-moving telescopic tubes g forming the upper part of the fork and connected by head members d, h to the rotatable steering tube b located in the head a. A spring s, or rubber washer, is interposed between the bridge i and the head member d to buffer the return motion produced by the recoil of the main fork springs t. Hydraulic damping means may be provided, comprising a cylinder v fixed inside each moving tube u and coacting with a piston rod x fixed to the stationary tube g. A bleed passage between the piston rod x and the sleeve head w of the cylinder v permits restricted flow of liquid when the forks are extending, but ports 10 controlled by a sliding valve y are opened to allow free passage when being compressed under impact.
Patent GB-164429-A (GB)
Title: Improvements in or relating to means for preventing sagging or dropping of doors andlike closure members in the closed position
IPC: E05F7/00
Filed: 1920-02-09
Abstract: 164,429. Pauton, G., and Debant, E. Feb. 9, 1920. Sagging, preventing.-A means for preventing sagging of doors in the closed position consists of block with an inclined front c fixed to the jamb or sill and a roller f partially enclosed in a sheath on the door. In closing, the roller travels up the incline and rests on the horizontal surface of the block. The roller may have ball bearings.
Patent GB-1128124-A (GB)
Title: Resilient suspension in vehicles
IPC: B61F5/22
Filed: 1967-01-26
Abstract: 1,128,124. Railway vehicle undercarriages; tandem axles. BUDD CO. 26 Jan., 1967 [1 Feb., 1966], No. 3980/67. Headings B7D and B7L. A vehicle body 11, Figs. 2 and 3, is supported from a bogie bolster 16 either by primary pneumatic spring means 20 or by secondary coil spring means 23. As shown, the spring means 20, which is connected by a flexible hose 33 to a reservoir formed by the hollow bolster 16, is supported between the body 11 and a beam 19 pivoted through a shackle 27 and clevis 30, to the bolster. The spring means 23 is supported between a cup 61, of the beam, and the bolster 16. When the air spring is operative the beam 19 engages a block 25 on the bolster and the means 23 is compressed, the load being taken solely by the air spring means. Should the latter be inoperative, e.g. deflated, Fig. 3, the cup 61 engages a resilient bumper 64 on the body 11 and the load is taken by the spring means 23. In another embodiment the air spring is between the beam and bolster and the coil spring means between the beam and body. The beam is then pivoted to the body.
Patent GB-1055711-A (GB)
Title: Lithographic printing plates
IPC: G03F7/06
Filed: 1964-01-30
Abstract: 1,055,711. Silver salt diffusion transfer on to a metal layer for production of lithoplates. GEVAERT PHOTO-PRODUCTEN N, V, Jan.30, 1964 [April 26, 1963; Oct.28, 1963], No.4027/64. Heading G2C. Processes for the production of lithographic printing plates by silver halide diffusion transfer on to a metallic layer as described in Specification 913, 591 are conducted using a silver halide emulsion, which has a superimposed layer of watersoluble colloid. The colloids specified are methyl cellulose, sodium salt of carboxymethyl cellulose, hydroxyethyl cellulose, hydroxyethyl starch, hydroxypropyl starch, sodium alginate, esters of alginic acid, tragacanth gum, starch, polyvinyl alcohol, polyacrylic acid, polyacrylamide, polyvinyl pyrrolidone and poloxyethylene copolymer of methylvinylether and maleic acid. The coating solutions for forming the silver halide emulsion and water-soluble colloid layers may contain wetting agents, various non-ionic and anionic wetting agents and mixtures thereof are specified. Other conditions, reagents and subsequent treatment of the formed printing plate are as described in Specifications 913, 591, 946, 538, 968, 706, 998, 447 and 1, 031, 279.
Patent GB-1172501-A (GB)
Title: Improvements in or relating to power supply regulation arrangements
Inventor: LEACH MICHAEL FRANK
IPC: G05F1/62
Filed: 1966-01-28
Abstract: 1,172,501. Automatic voltage control. PLESSEY CO. Ltd. Jan.13, 1967 [Jan. 28, 1966], No.4029/66. Heading G3R. An electrical power supply regulation arrangement comprises a voltage booster 1 for injecting a boost voltage V2 into a D.C. input voltage V1, the voltage V2 having a magnitude dependent upon the combined D.C. output voltage V1 + V2; the boost voltage is derived by rectification of an A.C. output voltage V3 produced by a static inverter 2, and the booster 1 includes a transductor having a control winding to which is applied a signal derived from a sensing device 3 responsive to variations in the output voltage V1 + V2 Fig.3 (not shown). The inverter may supply boost power only, as shown in Fig.1, or it may supply both boost power and a regulated A.C. output Figs.2, 4, 5 and 6 (not shown).
Patent GB-1035371-A (GB)
Title: Pneumatic device for finding and drawing off the thread end of a textile spool
IPC: B65H67/08
Filed: 1963-01-31
Abstract: A thread commencement is drawn off a spool 1 by subjecting the spool to a swirled flow along its length.  Air inlet nozzles are fitted in the side wall of a tube 2, Fig. 1 (not shown), in a manner causing air passing from the nozzles into the tube 2 to spiral up the tube.
Patent GB-628848-A (GB)
Title: Improvements in or relating to lighters
IPC: F23Q2/48
Filed: 1947-02-12
Abstract: 628,848. Frictional lighters. CARTIER SOC. ANON. Feb. 12, 1947, No. 4091. Convention date, March 13, 1946. [Class 75(iii)] The flint guide of a lighter is provided, behind the usual position of the flint, with an opening for the introduction of a flint, said opening being normally a t least partially closed by a spring - urged lever which urges the flint against the friction wheel, and means being provided for holding said lever away from the opening. A horizontal flint guide 10 is cut in a vertical metal plate 11 welded to the top plate of the lighter and is provided with a rectangular opening 20 which is sufficiently far from the friction wheel to prevent the flint from dropping out accidentally. A spring 12 lies parallel to the axis of rotation of the friction wheel 4 in a tube 13 closed by a screw 14, the pressure of this spring being transmitted to the flint 9 through a piston 12a which is set above the spring and presses on a projecting part 18 of a flat lever 15, said lever, which bears against the flint through a cam surface 19 and normally closes the opening 20 in the flint guide, being pivoted on a horizontal axis 16 and moving in a slit in the plate 11. To change a flint, pressure is exerted on the upper end 15a of the lever 15 so that a different part of the projection 18 bears against the piston 12a and holds the lever in its new position in which the opening 20 is uncovered. The lever 15 may be returned to its initial position by closing the lid 3 whereupon a cam 21 thereon pushes forward the end 15a of the lever, or by inserting a finger in the angle formed between the bevelled edges 25, 26 of the case and the lid 3 and pushing back the end 15a. The upper edge of the plate 11 forms an arc of a circle, the centre of which is the pivot 16, so that the operator's finger may be guided along said edge when pushing forward the end 15a. The lid 3 is held in its extreme positions by a blade spring 22 which is fixed in the case and one end of which acts on a finger 23 rigid with the lid. The knurled knob 8 by which the friction wheel 4 is operated has a sawtoothed outline, the steep sides of the teeth being engaged by the operator's finger.
Patent GB-1485545-A (GB)
Title: Polymeric etch resist strippers
IPC: H01L21/311
Filed: 1975-01-30
Abstract: 1485545 Photo-resist strippers ALLIED CHEMICAL CORP 30 Jan 1975 [30 Jan 1974] 4135/75 Heading G2X A stripping composition for photo-resists comprises (a) 25 to 35 wt. per cent of phenol and/or acetic acid. (b) 10 to 30 wt. per cent of one or more isomers of phenol sulphonic acid. (c) 15 to 30 wt. per cent of at least one chlorinated hydrocarbon e.g. orthodichlorobenzene, perchloroethylene. and (d) 25 to 35 wt. per cent of a surface active agent having a hydrophile-lipophile balance number of 11.0 to 12.5 e.g. linear dodecylbenzenesulphonic acid. The composition is used at temperatures between 50 and 180C to strip resists such as polyisoprene, polyvinyl cinnamate and phenolformaldehyde resin.
Patent GB-740238-A (GB)
Title: Improvements in restrictor valves
IPC: F16K1/38
Filed: 1953-10-27
Abstract: 740,238. Manually-actuated valves. FOXBORO CO. Oct. 27, 1953 [Nov. 15, 1952], No. 4157/55. Divided out of 740,179. Drawings to Specification. Class 135. A flow iestrictor for an elastic fluid comprises a pin co-operating with a passage having the same amount of taper as the pin, the larger end of the latter engaging a cap which is connected by a tension spring to a point in the casing of the restrictor near the passage, and the member actuating the pin engages the smaller end of the latter and is adjustably mounted in the casing. The invention is described with reference to the disclosure in Specification 740,179.
Patent GB-548210-A (GB)
Title: Improvements in the cooling systems of electric machines
IPC: H02K9/16
Filed: 1941-03-28
Abstract: 548.210. Cooling dynamo-electric machines. BRUSH ELECTRICAL ENGINEERING CO., Ltd., and PRICE, H. T. March 28, 1941, No. 4174. [Class 35] Relates to cooling means for totally-enclosed machines, particularly induction motors, comprising separate closed internal air cooling and external cooling by air from the atmosphere. The stator core 11 is formed at its outer periphery with longitudinal recesses 22a, 22b ; thin plates are fitted into grooves in the sides of some of these recesses (into alternate sets of three recesses 22a in Fig. 2 so as to close these to constitute the internal system) the alternate sets of three open recesses forming part of the external cooling system. In order to divide off the two systems an annulus with ports 26b that expose the ends of the unclosed recesses in the outer space 14 and ports 26a which expose the ends of the others to the interior space 19 is fitted at both ends between the end shields 17, 18 and the stator. The external fan 15 blows air from outside through the peripheral space 13, through the open stator recesses and over the closure plates of the closed recesses. The internal fan 26 circulates the interior air through the closed recesses. A heat exchange is thus provided between the exterior and interior systems. All the recesses may be closed in which case interior air passes through some of them, exterior air through the others and exterior air over all the closure plates.
Patent GB-1152965-A (GB)
Title: Modified Cement Mortar
Inventor: SLYSH ROMAN STEPHEN
IPC: C04B24/26
Filed: 1968-01-26
Abstract: 1,152,965. Mortars. ESSO RESEARCH & ENG. CO. 26 Jan., 1968, No. 4190/68. Heading C1H. A cementitious composition comprises cement, sand or other aggregate, water and an emulsion polymer of at least one C 4-9  2-methyl-α-olefin with either (1) a mixed dialkyl fumarate of formula R 1  being C 1-3  alkyl and R 2 , C 4-18  alkyl or (2) a mixture 1-99 mol per cent of a dialkyl C 1-3  fumarate and 99-1 mol per cent of a dialkyl C 4-18  fumarate. Specified monomers are isobutylene, di-ethyl di-butyl and di-octyl fumarates amongst others together with particular combinations. An α,#-unsaturated mono- or di-COOH acids can be interpolymerized with the emulsion polymer. Optionals are Me cellulose, talc, fly ash, lime, limestone, blast furnace slag, gypsum, stearates, silicones and Me 2  polysiloxane emulsion.
Patent GB-556332-A (GB)
Title: An improved solid fuel
IPC: C10L5/02
Filed: 1942-03-30
Abstract: 556,332. Solid fuel. FREW, D. L. March 30, 1942, No. 4221. [Class 50] Small coal or slack up to such size as will pass a screen of “ inch mesh is mixed with granulated peat and a binding agent such as pitch or sulphite lye, and moulded or extruded under pressure to form briquettes, which are then heated to a temperature of 400-500‹ C. so as to carbonize the surface layer only. The proportion of coal in the coal and peat mixture may vary from 30 to 70 per cent by volume, or be still greater. Specification 417,126 is referred to.
Patent GB-1473998-A (GB)
Title: Method and apparatus for controlling the speed of operation  of apparatus for manufacturing corrugated board
IPC: B31F1/24
Filed: 1975-01-31
Abstract: 1473998 Automatic speed control COPAR CORP 31 Jan 1975 [25 Feb 1974] 4273/75 Heading G3R In corrugated board manufacture, single faced board is temporarily stored before proceeding to a double facing stage. The actual speeds of single and double facing drives are measured and compared, and the amounts of single faced board entering and leaving the storage area are compared. The results of the comparisons produce signals used to control the single facing drive so as to regulate the amount of single faced board in the storage area. As shown, tachogenerators 58, 60, responsive to single and double facing drive speeds respectively, energize resistors 62, 64 in opposite senses so that any difference in speed produces a non-zero input to an operational amplifier 66. To correct for errors due to non-linearity in the tachogenerators, the amplifier 66 receives a second input derived through an up-down counter 70 and D-A converter 72 from pulse generators 50, 52 driven by facing liner material at the single and double facing stages respectively, Fig. 1 (not shown). If the magnitude of the error output from the amplifier 66 exceeds a pre-set level, one or other of two Schmitt trigger circuits 74, 80 is actuated to produce continuous energization of a corresponding coil 88 or 100 controlling a motor driven rheostat and thereby adjusting the speed of the single facing drive so as to reduce the error output signal. Smaller error signals actuate trigger circuits 76, 78 producing coil energization only when a periodic signal from a timer 92 is present. Switches 106, 110 are operated to supply an additional input to the counter 70 and thereby increase the amount of stored single faced board before a splicing operation is carried out. At this time, a trigger circuit 82 energizes a device for spraying water on the stored material to prevent its drying out. The storage area takes the form of a slow-moving belt (32), Fig. 1 (not shown), on which the single faced material is lapped. A pair of wheels 54, 56 sense the speed of the material near the beginning and near the end of the store and produce between them a predetermined number of pulses if the material is initially lapped and then lies flat on the storage belt, which indicates the presence of the required amount of stored material. If the actual pulse count 124 lies outside a range defined by a tolerance gate 130, a counter 136 supplies an additional input in a corrective sense to the counter 70 to adjust the single facing drive speed. The actual amount of material in the storage area can be measured directly by spraying water on an area of the material as it enters the store and subsequently detecting the wetted area as it leaves the store. Pulses are counted during the storage interval by a further counter (150) Fig. 3 (not shown) to provide an indication of the storage volume.
Patent GB-899146-A (GB)
Title: Improvements in and relating to electrical contacts
Inventor: HEATH CLARENCE WILLANS
IPC: H01R13/115
Filed: 1959-02-06
Abstract: 899,146. Two-part couplings. CARR FASTENER CO. Ltd., and LUCAS (INDUSTRIES) Ltd., JOSEPH. Jan. 22, 1960 [Feb. 6, 1959], No. 4333/59. Class 38 (1). An L-shaped contact has upstanding walls 9 with their free ends curled inwardly to provide a socket for a plate-like member b. The contact has a transversely bent resilient tongue 11 which urges the plate against the curled ends of the walls 9 and the tongue 11 has an embossment 12 to engage a recess in the plate. The lead wire is held by a tongue 7 which clamps the insulation of the wire against the base of the contact and forces part of the insulation through a slit 5. A bared portion of the lead wire is soldered to the contact.
Patent GB-347777-A (GB)
Title: Improvements in and relating to the manufacture of reinforced glass
IPC: A47G25/44
Filed: 1930-02-10
Abstract: In making laminated glass, a sheet of glass is first coated with adhesive and a solution containing a cellulose derivative is applied over the adhesive coating, after which the solvent is evaporated and a further sheet of glass is secured by adhesive to the cellulosic layer.  The adhesive may be an aqueous or other solution of gelatine or synthetic resin such as polymerized vinyl acetate, or soluble phenol aldehyde resins, diphenylol propane-formaldehyde resins, diphenylol-propane-ketone resins, toluene sulphonamide-aldehyde resins, benzene-sulphonamide-aldehyde resins, xylene-sulphonamide-aldehyde resins or lactic acid resins.  The adhesive may also contain cellulose derivatives and plasticizers. The cellulose derivatives are preferably prepared by filtration or are subjected in the solid form to oxidizing agents as described in Specifications 341,890 and 347,257, [both in Group VIII].  The cellulose layer may be formed by a single application of solution or by a number of applications the various coatings being dried to the required extent before the next coating is applied.  A suitable solution for building up a reinforcing layer on adhesive-coated glass consists of cellulose acetate, propionate, or butyrate, 20 parts by weight, acetone 100 parts.  A second such solution giving parts by weight comprises cellulose acetate or nitrate 20 parts, triacetin 10 parts, acetone 100 parts.  A third solution consists of cellulose acetate 25 parts, triacetin 5 parts, diethyl phthalate 5 parts, acetone 80 parts, benzene 10 parts, ethyl acetate 10 parts, diacetone alcohol 5 parts.  The following example gives an adhesive solution which may be employed to cause a reinforcing layer of cellulose acetate to adhere to glass; cellulose acetate 2 parts, synthetic resin 3 parts, triacetin 2 parts, acetone 50 parts, alcohol 25 parts, benzene 25 parts, ethyl lactate 5 parts.  The synthetic resin may be toluene sulphonamide formaldehyde resin, a diphenylol propane-formaldehyde resin or other synthetic resin.
Patent GB-670097-A (GB)
Title: Soil mixture for horticulture
IPC: C05F11/04
Filed: 1949-02-18
Abstract: Soil for horticultural use is prepared by mixing crumbled clay, without humus, and peat in about equal proportions, with the addition of nutrient salts.  Part of the clay may be replaced by sand.