baber/WOPTO huggingface dataset:
Patent GB-852342-A (GB)
Title: Improvements in or relating to electrical battery supply circuit arrangements
IPC: H02J7/34
Filed: 1957-02-28
Abstract: 852,342. Charging and discharging batteries; systems depending on two or more sources; rectifying; automatic regulation. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 28, 1957 [March 3, 1956], No. 6753/57. Classes 38 (2) and 38 (4). A series combination of cross-linear and linear resistors 12, 13 having a substantially horizontal current/voltage characteristic is connected across a battery 4 so that when the battery is fully charged, the combination bypasses substantially the whole of the charging current to prevent over-gassing of the battery. The battery is charged from a mains supply 6, 7 through a switch 8, resistor 9, rectifier 10 and an indicator lamp 11. A second non-linear positive coefficient resistor 14 is connected as shown to limit the reverse voltage applied to the rectifier when connected to an A.C. supply. A load 1 may be connected to the battery 4 through a switch 5.
Patent GB-1533042-A (GB)
Title: Fertilizer containing pullulan
IPC: B01J2/28
Filed: 1976-02-23
Abstract: 1533042 Fertilizers containing pullulan SUMITOMO CHEMICAL CO Ltd and HAYASHIBARA BIOCHEMICAL LABORATORIES Inc 23 Feb 1976 [24 Feb 1975 (2)] 07105/76 Heading C1B Pullulan or a derivative thereof is used as a component for fertilizers. The derivative may be an etherized or esterified pullulan or may have a vinyl monomer graft polymerized on to it, and may have a M.Wt. of 10,000-5,000,000. Other components may be oil meals, peat moss or compost, and inorganic fillers and plasticizers. The product is preferably shaped or moulded so as to be driven into the soil.
Patent GB-736537-A (GB)
Title: Improvements in or relating to sliver roll forming machines
Inventor: BEE JOSEPH RYDER
IPC: D01G27/00
Filed: 1953-03-16
Abstract: 736,537. Sliver roll forming apparatus. FAIRBAIRN LAWSON COMBE BARBOUR, Ltd. March 16, 1954 [March 16, 1953], No. 7147/53. Class 120(1). In a sliver forming machine wherein sliver is wound on a core, 21, Fig. 2, which is rotatable on a spindle locked between slidable members 39 which move against resistance as the roll increases, the spindle is locked between members 39 by members 37 rotatable in members 39 and engaging and retaining both ends of the spindle, a slot 27 being provided in each member 37 which when brought into line with a co-operating slot member 39 will allow the spindle to be withdrawn. As shown, the spindle comprises a sleeve 22 carried in bearings 33 on a shaft 29 having square ends 31 fitting in the slots 27 ; shaft 29 is inserted in slots 27 while they are aligned with the corresponding slots in the top of members 39, members 37 being then rotated by a handle 43 to bring the slots out of alignment and thereby lock the shaft to members 39. Members 39 are slidable in guides 19, Fig. 1, and are connected by chains 45 to a drum 47 braked by a band 49 weighted by a lever 51. On completion of a roll, members 37 are rotated to their original position, a pedal 53 is depressed to release the brake pressure and allow members 39 to fall under the action of a counterweight 55, and the spindle is withdrawn from the roll which is then removed. Specification 729,438 is referred to.
Patent GB-740992-A (GB)
Title: Improvements in web registering mechanism for wrapping and like machines
Inventor: PARKER MATTHEW
IPC: B65B41/18
Filed: 1953-03-16
Abstract: 740,992. Feeding webs. FORGROVE MACHINERY CO., Ltd. Jan. 20, 1954 [March 16, 1953], No. 7187/53. Class 100 (1). In a wrapping, bag-forming and filling or like machine having mechanism for feeding and cutting a web of packaging material the web bears a series of regularly spaced registration marks having an electrical conductivity different from that of the web and these marks are sensed by a detector comprising a pair of spaced  electrical conducting feelers connected to actuate registering mechanism each time they are bridged by a registration mark on the web. In the form of Fig. 1 the detector 13 comprises a pair of parallel arms 14 swingably arranged on a spindle 19 from which they are insulated by bushes. Rotatable feeler discs 18 mounted at the end of the arms bear on the web 10 as it passes over a support 12. A circuit between discs 18 is completed when they contact one of the marks 11 which are of some conducting material printed or otherwise applied to the web at equally spaced intervals. The arms are connected through brushes 20 and wires 22 to an amplifier 23 supplied by leads 24, the pulse provided by the moving mark being used thereby, to control the registering mechanism (which may be apparatus designed to clamp the web momentarily, as described in Specification 704,697) through leads 25. The discs 18 can alternatively be non-rotatable in use but adjustable to present unworn and clean edges to the web when necessary. Specifications 262,588, [Class 100 (i)], 354,756 and 704,697 are referred to.
Patent GB-465077-A (GB)
Title: Improvements in or relating to glasses for electric discharge devices
IPC: C03C3/064
Filed: 1936-03-10
Abstract: 465,077. Glass manufacture. GENERAL ELECTRIC CO., Ltd. (Patent - Treuhand- Ges. f³r Elektrische Gl³hlampen) March 10, 1936, No. 7223. [Class 56] A glass which resists attack by metal vapours is composed of 15-25 per cent of silica, 25- 35 per cent of alumina, and 20-35 per cent of boron trioxide, the remainder consisting of calcium oxide or barium oxide or both together. The glass is suitable for use in making the envelopes of electric discharge lamps containing the vapour of sodium, potassium, or magnesium. An envelope may be made entirely of the glass, or it may be made of any other suitable glass which is flashed on its inner surface with a coating of glass having the composition given above.
Patent GB-628764-A (GB)
Title: New or improved table game appliances
IPC: A63F7/06
Filed: 1947-03-17
Abstract: 628,764. Table games. STABLEFORD, H. S. March 17, 1947, No. 7275. [Class 132 (ii)] Apparatus for playing a table game simulating golf, football &c. comprises a board A with a rim G, a ball I, numbered openings B and other openings C in the board which is supported on an invertedmushroom pedestal O so that it may be tilted in any desired direction, the board having numbered recesses or raised " tees H, adjacent the openings B. Hazards D, P are provided and the object is to guide the ball, by tilting the board, from the recesses H to the holes B avoiding the hazards D, P and the openings C. Fabric F beneath the board forms pockets beneath the openings.. The board comprises two halves hinged at K and each carrying a member M or L which interlock to hold the halves extended. A modified form representing football is described with reference to Fig. 3 (not shown) and the invention may also be applied to other games such as cricket or billiards. The numbers may be interchangeable and the hazards may be movable. The ball may be attached to a piece of light string so as to be captive.
Patent GB-222045-A (GB)
Title: Improvements in expanding sectional bookcases
IPC: A47B57/16
Filed: 1924-03-21
Abstract: 222,045. Bingley, F., and Improved Sheetmetal Works, Ltd. March 21, 1924. Sectional book-cases.-Expanding book-cases built up of parts of two kinds are made of sheet metal. The upright members have their edges c, d bent to flattened tubular form and are provided with slots &c. stamped out at both sides, for engagement by lugs on the shelf members. The slots at one side are differently spaced from those at the other, the lugs at opposite ends of the shelves being correspondingly spaced. As shown, rows of four slots are provided, to engage depending lugs n secured to the shelves j, the inner slots f, g being stamped out to one side of the upright and the outer slots h, i to the other side. Projections o are provided at the upper ends of the uprights to enter the tubular portions c, d of a superposed upright. Perforated lugs p are provided for attachment of the case to a wall &c., or for the attachment of strengthening rods (not shown), when the book-case is intended to stana.
Patent GB-1491912-A (GB)
Title: Web handling apparatus
IPC: G03G21/00
Filed: 1975-02-21
Abstract: 1491912 Guiding webs XEROX CORP 21 Feb 1975 [22 Feb 1974] 7343/75 Heading B8R Apparatus for holding flat a photoreceptor belt 12, Fig. 2, in an electrostatic reproduction machine comprises a number of hold-down devices 125, 126, 127, each hold-down device comprising a perforated plate (131, Fig. 5) connected through a chamber and spigot 143 to an induced draught from 168, Fig. 3, the fan being driven by a motor 169 which is controlled by a pressure sensor 170 located in a duct 167 and applying an electric signal to a control device 172 which is effective to start the belt drive when the pressure in the hold-down devices 125 to 127 is at a predetermined value or stop the drive means if the pressure falls below the predetermined value.
Patent GB-695903-A (GB)
Title: Improvements relating to the manufacture of pottery articles
IPC: B28B1/02
Filed: 1951-03-30
Abstract: 695,903. Making pottery. WALLEY, J., and JOHNSON, J. A. Feb. 29; 1952 [March 30, 1951], No. 7365/51. Drawings to Specification. Class 87(i) In jolleying a pottery article, such as a fruit bowl, having a sharply defined rim, in a mould on an automatic or semi-automatic machine, shaping is effected in two stages by profile tools which are formed so that the article is first shaped with the bowl portion too thick and the rim portion too thin, and that clay is then forced outwards into the rim to produce the desired thickness of bowl and rim. Specifications 563,734 and 579,291 are referred to.
Patent GB-1533432-A (GB)
Title: Fm tuner
IPC: H03J3/14
Filed: 1976-02-25
Abstract: 1533432 Tuning indicators SHIN-SHIRASUNA ELECTRIC CORP 25 Feb 1976 [17 June 1975] 07489/76 Heading H3Q An FM tuning indicator has a transistor differential amplifier 5 responsive to the S-characteristic output of a frequency discriminator 4 for producing a maximum output signal (Fig. 2C, not shown) to a detector 7 such as a meter corresponding to the maximum output of an I.F. signal at its centre frequency (Fig. 2A, not shown) and the zero condition of the S characteristic (Fig. 2B, not shown). As disclosed the impedance of a FET 6 is varied depending on the D.C. component of the output of the discriminator so that this together with the output from an IF amplifier 2 cause the differential amplifier Q 1 , Q 2  to produce a maximum output signal corresponding to the tuned condition of the FM tuner 1.
Patent GB-1040792-A (GB)
Title: Optical systems for lasers
Inventor: BROOM RONALD FRANCIS JOHNST ON
IPC: H01S5/022
Filed: 1964-02-24
Abstract: 1,040,792. Optical apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 23, 1965 [Feb. 24, 1964], No. 7521/64. Heading G2J. [Also in Division H3] The divergent output from a P-N junction semi-conductor laser M, Fig. 1, is collimated by two orthogonal plane-cylindrical lens L 1 L 2  arranged in tandem, each lens being spaced from the emitting surface of the laser by a distance # 1 # 2  at least equal to the focal distance of the lens. A row of lasers energized in series from the same current source may have their outputs collimated into a single beam by a single plano-cylindrical lens L1 common to all the lasers at a distance # 1  and by individual piano cyclindrical lens L2 at a distance #2 Fig. 2 (not shown). This arrangement may be extended for a matrix of semi-conductor lasers, a single lens L1 being common to each row and a single lens L2 common to each column, Fig. 3 (not shown). A single row of lasers contained in a windowed dewar vessel cooled by liquid nitrogen is described with reference to Figs. 4 to 6 (not shown), each diode laser M being soldered to a copper block C which adjustably supports a planocylindrical lens L1. The copper blocks are clamped to an anodized aluminium heat sink T and are connected in series by contact springs S. A common plano-cylindrical lens L2 external of the dewar vessel window is used, the lens being supported in a frame F moveable by a rack and pinion mechanism H, K. Each semi-conductor laser is formed of N-type gallium arsenide into which zinc is diffused to form the junction. Gold/zinc and antimony/tin alloy contacts are attached to the P- type and N-type surfaces respectively. Parallel polished surfaces are formed on the semi-conductor one of which is made wholly reflecting by silica and silver layers.
Patent GB-1375126-A (GB)
IPC: C25B1/46
Filed: 1973-02-15
Abstract: 1375126 Electrolysis of alkali metal halide solutions DIAMOND SHAMROCK CORP 15 Feb 1973 [16 Feb 1972] 7556/73 Heading C7B In the electrolysis of alkali metal halide solution in an electrolytic cell divided by a conductive perm-selective cation exchange membrane, anions are present in the anolyte which at a pH >5À5 form an insoluble gel in conjunction with polyvalent cations present in the anolyte, the gel being reversible at a pH <3. Such anions include phosphate and ortho- or meta-phosphate ions, e.g. as free acid, alkali metal or alkaline earth metal salts. Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn or Al may be added to provide the polyvalent cations. The cell used may comprise an iron or steel mesh cathode, a precious metal oxide coated titanium anode, e.g. expanded titanium with a TiO 2 /RuO 2  coating, and a membrane based on e.g. divinylbenzene acrylic acid copolymer, polythylene, divinylbenzene-polystyrene copolymer or polyvinyl fluorocarbon ether.
Patent GB-453499-A (GB)
Title: Improvements in or relating to television and like receivers
IPC: H04N5/50
Filed: 1935-03-11
Abstract: 453,499. Current meters. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, and LINSELL, A. A., 80, Crystal Palace Park Road, Sydenham, both in London. March 11, 1935, No. 7566. [Class 37] [See also Group XV] The cathode-ray producer tube of a television receiver is also employed as a tuning indicator. Fig. 1 shows a television receiver of the superheterodyne type in which the voltage drop across a resistance 8 in the anode circuit of the first detector 4 is applied through a switch 13 to the deflecting plates 14, 15 of the reproducer tube, the switch being arranged so that on contacts 12, 10 the tube serves as a tuning indicator and on contacts 17, 18, saw-tooth scanning oscillations are applied to 14, 15 and the tube acts as a reproducer. To prevent damage of the fluorescent screen due to the light spot resting in one place, the switch may be arranged as a spring-loaded push-button to give tuning indication only while depressed, Fig. 2 (not shown). Alternatively, a separate fluorescent strip may be used for tuning indication purposes, the ray being deflected from the screen to the strip either by a bias applied to one of the deflector plates or by a permanent magnet swung into the proximity of the tube by the switch 13. Or, as shown in Fig. 4, two electron guns 20, 21 with separate controlling anodes and deflector plates may co-operate with the normal screen F, S and the auxiliary screen A, S. The latter may be constituted by a thin metal strip, the voltage drop across resistance 23 being used for automatic volume control by connecting the anode 25 to the potential source provided for such control. There may be a single electron gun associated with the two sets of anodes and deflecting plates in this embodiment. In Fig. 5 two apertures 26a, 26b are provided, the latter co-operating with a small screen, AS on the neck of the tube ; an interposed grid 27 is connected to a point in the receiver whose potential varies with signal strength such as the upper end of resistance 8, Fig. 1. The spot will vary in intensity with signal strength with this arrangement; the grid 27 may be replaced by deflecting plates for position indication.
Patent GB-912637-A (GB)
Title: Conveyor apparatus
Inventor: COURCY ROWLAND JOHN JAMES DE
IPC: B65G13/00
Filed: 1959-03-04
Abstract: 912,637. Feeding articles in batches; rollerway conveyers. ROWNSONS CONVEYORS Ltd. June 3, 1960 [March 4, 1959], No. 7612/59. Class 78 (1). Packages from a first packaging machine are fed singly by endless slat conveyer F on to roller conveyer H which assembles them into a batch, the batch rolling down pivoted roller conveyer J to be discharged leftwards by endless belt B. Likewise, packages from a second packaging machine are fed singly by endless slat conveyer E on to roller conveyer G which assembles them into a batch, the batch being discharged on to the said endless belt B. These batches are fed alternately from the two packaging machines on to the belt B, the pivoting of roller conveyer J permitting the conveying of the lower batches therepast so that both sets of batches are discharged leftwards by belt B. Curved slat conveyer F (or E).-Slats 101 run on rollers 110 and are carried by chains 102, 103 trained round sprockets 105, 106 and 107, 108, chain 102 being longer than chain 103 to permit the slats to pass round the horizontal bend in the conveyer. Roller conveyer H (or G) (Fig. 4).-The rollers 1 are rotatably driven by belt 14, and are divided into three sets brought selectively into engagement with the belt, respectively, by shoes 21, 22, 23. Each shoe is pivoted so as to be pivotally raised into said engagement by its rod 32 operated by air piston 30, the rollers yielding upwards in the slots shown. The air pistons are operated in time-sequence by cams, the belt being driven continuously. Firstly, all three shoes are raised to drive all the rollers; then shoe 21 is lowered; then shoe 22 is lowered; and then shoe 23 is lowered. This delivers one batch and causes the following packages to pile up into a batch at K ready to be conveyed in the next cycle.
Patent GB-104099-A (GB)
Title: Improvements in and connected with Pneumatic and like Hand Tools for Scaling Tubes and Surfaces.
Inventor: GILMAN FRANK
IPC: B25D9/08
Filed: 1916-05-30
Abstract: 104,099. Gilman, F., and Clements, G. F. May 30, 1916. Percussive hand tools. - Relates to pneumatic percussive and like hand-tools for removing scale &c. from tubes and surfaces by a hammering action, such as are described in Specification 3113/14. The bush forming the cylinder, instead of being screwed into a head with a solid end, is inserted into the head through a hole which is closed bv a screw plug provided with locking- means. Figs. 1 and 2 show one arrangement. The bush 1 is inserted into the tubular head A and rests against a shoulder 5. It is securely fixed by a screw plug 10, which is locked by suitable means, such as a spring wire C with one end fitting in a hole in the plug and the other end in a hole in the body A. The hammer piston B is vibrated rapidly by the air pressure. supplied through the pipe 19 in the handle. Fig. 6 shows a construction in which three such hammer pistons are arranged in one cylindrical head A<1>, the bushes being secured by screwed plugs 10 in a somewhat similar manner to the arrangement shown in Fig. 1.
Patent GB-581392-A (GB)
Title: Means for supporting a fishing rod
IPC: A01K97/10
Filed: 1945-03-27
Abstract: 581,392. Body harness. BUGGINS, G. March 27, 1945, No. 7670. [Class 141] [Also in Group VI] A rest for a fishing rod is supported by a waist belt 7 and a neck or shoulder loop 10, and comprises a bar bent to form rod supports 2, 3 and a curved portion 5 which rests on the fisherman's body.
Patent GB-330586-A (GB)
Title: Improvements in or relating to electrical filters or networks, loaded cables and the like
IPC: H03H7/01
Filed: 1929-03-08
Abstract: 330,586. Automatic Telephone Manufacturing Co., Ltd., and Turney, T. H. March 8, 1929. Drawings to Specification. Loading circuits to improve transmission In a filter circuit or loaded cable, the cut-off frequencies of the sections are graded or tapered from both ends to the middle but preferably all the sections have the same nominal impedance (i.e. characteristic impedance at low frequencies, resistance being neglected). By this arrangement the impedance can be made sensibly constant for all transmitted frequencies, and transients due to switching operations can be eliminated. Thus a low-pass filter may consist of a chain of sections with a cut.-off at 800# or terminated at each end by a group of four sections from cut-offs rising from 900 # to 1200 #; (Fig. 2, not shown) or in a chain of band-pass sections the bands may widen towards the ends. The nominal impedance of the sections may be constant or may be graded to match unequal end impedances. In the case of a cable the cut-off frequencies may be tapered in arithmetical, geometrical or other progression, the distances between loading coils being graded accordingly.
Patent GB-1027260-A (GB)
Title: Pattern identification apparatus
IPC: G06V10/98
Filed: 1965-02-23
Abstract: 1,027,260. Automatic character reading. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 23, 1965 [March 20, 1964], No. 7674/65. Heading G4R. In pattern identifying apparatus the pattern is scanned on a vertical raster to obtain representative signals, the scanner being alterable to modify the signals so as to tend to compensate for defects in the pattern, a recognition circuit, to which the signals are applied, provides, if the pattern is not recognized, a reject signal to be used to control the alteration of the scanner. The scanner may be altered to change the sensitivity to reflected light, the size of the scanning spot or the spacing of the vertical scans. Characters on document 11 are scanned by flying spot scanner 53 and photo-cell 57 provides signals which pass via a variable sensitivity amplifier 59 to recognition circuit 17. If the character is recognized, the corresponding output lead 21a-21n is marked. If not, a reject signal is given on line 23 which causes circuit 25 to initiate a sequence of operations in an attempt to make a recognition. In this form the sensitivity of amplifier 59 is changed by signals over lines 27. In an alternative arrangement the size of the scanning spot and the spacing of the raster may be varied over lines 27<1>. The control circuit of the scanner gives signals on lines 29 and 35 indicating the beginning and end of the scanning of a character and signals on line 33 at the end of each vertical stroke. These scan signals are counted at 31 in a three-stage binary counter which is connected to a converter giving on lead 39 a voltage proportional to the count and a circuit which sets a flip-flop when a count of six is reached. The " 0 " output of the flip-flop on lead 37 indicates that the character is undersized. The voltage signal is used when a re-scan is necessary to return the raster to its initial horizontal starting position by being subtracted from the horizontal deflection voltage. The variable sensitivity amplifier 59 consists of a potentiometer giving higher and lower attenuated forms of the signal. These and the signal itself are applied to AND gates, one of which is opened under the control of circuit 25 via leads 27. The corresponding form of the video signal is applied via an OR gate to a threshold circuit. In effect therefore the video signals are quantized at one of three possible levels. In normal operation the sensitivity is at its intermediate value, Fig. 2b (not shown). If the character is rejected and at this time a signal is present which indicates that the character is undersized, the unattenuated video signal is gated to the threshold circuit to thicken up the character, Fig. 2a (not shown). If this signal is not present the lowest video signal is used to thin down the character, Fig. 2c (not shown).
Patent GB-207458-A (GB)
Title: Improved device for applying lubricant to textile slivers
IPC: D01G29/00
Filed: 1923-03-17
Abstract: 207,458. Gelder, F. W. March 17, 1923. Coating materials in long lengths. - A device for applying lubricant in diagonal bands to slivers as they enter a gill box comprises a roller 2 provided with helical blades 4, rotating in a bath 1 of the lubricant.