baber/WOPTO huggingface dataset:
Patent GB-528278-A (GB)
Title: Improvements in wallets for film strips and negatives
IPC: G03B21/64
Filed: 1939-05-02
Abstract: 528,278. Wallets. BROOKE, G. A., and DOULTON & CO., Ltd., F. H. May 2, 1939, No. 13146. [Class 18] A wallet for film strips and negatives comprises an outer cover having hinged sections adapted to overlap to enclose a number of flat sleeves 11, preferably of transparent material. The sleeves are held at one end between folds 9, 10 by rivets, and are individually numbered or otherwise rendered distinctive, and the cover carries sheets with spaces correspondingly numbered for recording the contents of the sleeves. Notes and information may be recorded inside the cover portion 6.
Patent GB-766457-A (GB)
Title: Improvements relating to weathershields for motor cycles or the like
Inventor: FERRIDAY JAMES REGINALD
IPC: B62J17/00
Filed: 1954-05-06
Abstract: 766,457. Cycle weather shields. FERIDAX, Ltd. May 5, 1955 [May 6, 1954], No. 13185/54. Class 136(1). [Also in Group XXV] In a weather shield for motor-cycles and the like of the kind comprising a transparent screen 1 and a flexible or rigid apron 2 depending from the lower part of the screen, the screen being provided with supports for attaching it to the handlebars and the apron having a gap at its middle for accommodating the headlamp of the motor-cycle with a weather tight joint between the apron and the lamp, the screen and apron are arranged to be relatively adjustable up or down and to be held together in adjusted position by clamping devices capable of fastening the lower part of the screen 1 to the upper part of the apron 2. The clamping device may consist of a screw operated band-like clip 6, Fig. 2, consisting of sections 7 each provided with a hook 8 which embraces the edges 9 of the screen and apron. The inner edges of the sections 7 terminate in nuts 10 for the reception of a screw 11 which when tightened operates to draw the sections 7 towards one another and secure the screen 1 to the apron 2. Friction pads 12 assist in securing the screen to the apron through the band-like clip 6. The nuts 10 are provided by twining the inner ends of the sections 7 with sleeves 13 for reception of tapped barrels 14, the sleeves 13 being diametrically bored to take the screw 11. An alternative form of clamping device, Fig. 5, consists of a strap 15 extending across the front part of the apron 2, the strap supporting at each end a clamping device 16 provided with a screw operated movable jaw 17 capable of pressing the adjoining margins of the screen 1 into frictional engagement with the apron 2. The clamping device is fixed by a screw 18 to the strap 15 and the jaw 17 is connected to the clamp 16 by a screw 19. The clamp 16 and movable jaw 17 have co-acting inclined planes 20.
Patent GB-132625-A (GB)
IPC: C01B21/26
Abstract: 132,625. Thorssell, C. T., and Lunden, H. L. R. Sept.. 26, 1918. Ammonium nitrate.-In preparing nitrates by bacterial oxidation of ammonium compounds, a solution of the oxidation products is mixed with sufficient ammonium compound to be completely oxidized by one treatment, and after oxidation part of the solution is worked up for nitrates and to the remainder a solution of ammonium compound is added to obtain a solution of the same composition as that previously treated. A bacterial bed is formed by mixing garden soil with water, calcium carbonate, ammonium sulphate, and a trace of sodium phosphate, and after standing until the ammonium sulphate is oxidized, pouring the liquid over a bed of coke, slag or brick mixed with substances to neutralize acid such as chalk, limestone, dolomite, soluble silicate, &c., which is afterwards moistened at intervals, with ammonium nitrate solution. In forming ammonium nitrate, part of the calcium nitrate solution formed by oxidation is treated with ammonia and .carbon dioxide to form ammonium nitrate solution, part of which is added to the remainder of the calcium nitrate solution. The precipitated calcium carbonate is added to the bacterial bed.
Patent GB-351159-A (GB)
Title: Improvements in or connected with tooth brushes
IPC: G09F3/00
Filed: 1930-04-30
Abstract: 351,159. Brushes. PORTER, A. F., 7, Aldersgate Street, London. April 30, 1930, No. 13310. [Class 19.] Tooth, nail, toilet and like brushes are provided with a surface on which identification marks can be applied in pencil, ink or other marking means. The marking surface may be formed in the base of one or more depressions A, Fig. 1, in the handle, stem, or other part, or such surface may have an upstanding wall D, Fig. 2, or may be simply plain.
Patent GB-1031723-A (GB)
Title: Process for the preparation of agglomerates of solid fuel
Inventor: SPETCH DONALD
IPC: C10L5/14
Filed: 1962-04-06
Abstract: Small pieces of solid fuel are agglomerated by coating the pieces of fuel with an aqueous dispersion of a polymer of vinyl acetate, with or without other monomers, wherein the vinyl acetate comprises at least 95% of the total monomer content, forming the fuel into blocks, e.g. by moulding and drying the blocks, e.g. in a current of air. The adhesive may comprise a non-ionic aqueous dispersion of a homopolymer of vinyl acetate containing up to 15% dibutylphthalate. A protective colloid of up to 8% polyvinyl alcohol may be used in the adhesive and adhesive, which preferably has a resin content of 44-57%, may be mixed with powdered fuel in the proportion of 60:40 before being applied to the pieces of solid fuel. The fuel to be agglomerated may be coal, coke, anthracite, or semi-coke and may be coated with the adhesive by tumbling in a drum. Preferably the weight of adhesive is between 2 and 4% of the weight of the fuel.
Patent GB-1409180-A (GB)
Title: Free wheeling two-speed motor wheel
IPC: F04C2/10
Filed: 1973-03-20
Abstract: 1409180 Motorized wheel EATONCORP 20 March 1973 [20 March 1972] 13387/73 Heading B7H A motorized wheel 12 for a vehicle comprises a fixed housing 14, Fig. 2, carrying a motor 30 for driving a sun gear 44 engaging planetary gears 54 which mesh with a ring gear 60 on a casing 16 rotatable relative to the fixed housing 14, there being means for selectively locking the carrier 58 of the planetary gears 54 relative to either the fixed housing or the rotatable casing. If a high torque is required a control valve 29, Fig. 7, is manually operated together with valve 29a, to pressurize passages 24 and 26 from a variable displacement pump (not shown) thereby creating fluid pressure behind a clutch actuating shoe 74 via passage 72. Carrier 58 is thus moved into engagement with the fixed housing 14 by means of clutch surfaces 62, 66 thus providing a low speed-high torque forward rotation of the wheel 12. Pressurized fluid from valve 29a enters valve means 36 through port 24 and into a reversible geroter type hydraulic motor, rotational and orbital motion of externally toothed member 34 thereof rotates drive member 40 which transmits its drive to planetary gears 54 via a sun gear 44 at one end of member 40. When a sufficient vehicle speed is reached valves 29, 29a are moved across neutral to the opposite position thereby pressurizing passages 24, 28 to reverse rotation of motor 30. Pressure behind shoe 84 moves carrier 58 to the left, as seen in Fig. 2, into engagement with rotatable casing 16 by means of clutch surfaces 64, 68 to provide a direct 1:1 gear ratio. The rotation of wheel 12 may be reversed by reversing the output flow of the variable displacement pump. Sintered metal friction bands 62a, 64a are provided between the clutch surfaces of the carrier 58 and the housing 14 and casing 16. If valves 29, 29a are moved to the neutral position springs 76, 86 urge the carier into a center position for free wheeling.
Patent GB-135042-A (GB)
IPC: H01T13/16
Abstract: 135,042. Moreau, J. A. Jan. 18, 1919. Sparking-plugs. - The central electrode 4 is enclosed in a mica wrapping 7 which is itself surrounded by a metal tube 8. A shoulder 2 inclined at 45 degrees is drawn against a corresponding seating in the casing 1 by the nut 12 which screws on the outer end of the electrode 4 and presses against insulation 11 at the outer end of the casing. Mica washers 6 are also placed between the shoulder 2 and the head of the electrode 4 a perforated disk 5 forming the hightension terminal. An internal nut 9 is provided for tightening the wrapping 7, tube 8, and washers 6 on the electrode 4. The outer part 1<c> of the casing is perforated, and may be surrounded by a spring 1<d> in compression between the washer 14 and the wider part of the casing.
Patent GB-872031-A (GB)
Title: Basic weight classifier
IPC: G01G23/36
Filed: 1959-04-21
Abstract: 872,031. Photo-electric weighing systems. BLATCHFORD, W. C. (National Industrial Products Co.). April 21, 1959, No. 13540/59. Class 40(3) [Also in Group XVIII] The position of a projected optical image, which is determined by movement of a weighing mechanism, is used to produce electrical signals. In one embodiment the weighbeam of a scale carries a reticle 63, Fig. 10, an image of which is projected by the optical system 61, 62, 71, 72, partly on to a ground glass screen 30a, Fig. 11, in a wall 33a, and partly on to a row of eight photo-cells 76, 79, arranged behind a slit 51a in the wall. On the screen 30a, an image of the weight markings on the reticle appears, while seven of the cells 76 receive light from a row of the corresponding seven-unit digital binary code markings on the reticle. The eighth cell 79 is operated by further reticle marks when the weighbeam moves outside the coded range, and may effect an alarm or operate a control circuit. The outputs from the code cells 76 may operate a weight printer and further operation control circuits such as described in Specification 866,155. In another embodiment, Figs, 4, 5, 6 (not shown), a simpler reticle is employed and a pair of photo cells of which one only is illuminated for the "correct" weight indication and neither or both are illuminated for "over" and "under" weight conditions respectively.
Patent GB-857984-A (GB)
Title: Industrial process control apparatus
IPC: G05D23/20
Filed: 1959-04-21
Abstract: 857,984. Transistor amplifier circuits. FOXBORO CO. April 21, 1959 [April 30, 1958], No. 13570/59. Class 40(6). [Also in Group XXXV] In a process automatic control system (see Group XXXV) a control voltage is applied to an amplifier together with an alternating voltage which is derived by a voltage-variable capacitor from a direct voltage which is a time function of the amplifier input. In Fig. 4 a D.C. error voltage 26a is applied to a pair of semi-conductor diodes 34a to vary their capacity. The A.C. output of a normally unbalanced bridge circuit 36a ,which is thus increased or decreased according to the sense and magnitude of the error, is applied through an impedance 112 to a transistor A.C. amplifier 116 the output of which is applied through a transformer 148 to a transistor demodulator 154 energizing a controller 74a. Stabilizing feedback networks e.g. 138, 140 are associated with each stage of amplifier 116, and positive feedback from winding 150 of output transformer 148 to bridge circuit 36a causes oscillation of amplifier 116 to provide the A.C. input to bridge circuit 36a. Feedback from a transformer 166 in the demodulator circuit is rectified by a diode 178 and applied in series with the error voltage through networks 184, 190 which respectively introduce differential and integral components of control. In a modification in which the differential component is absent the A.C. bridge circuit is normally balanced and energized by a separate transistor oscillator.
Patent GB-877604-A (GB)
Title: Improvements in a centrifugally compensated shaft seal
IPC: F16J15/44
Filed: 1960-04-19
Abstract: 877,604. Stuffing-box substitutes. GENERAL ELECTRIC CO. April 19, 1960 [April 21, 1959], No. 13632/60. Class 122 (5). In a seal for a shaft 10 rotating within a concentric cylindrical member, such as, for example, an outer hollow shaft 12, and comprising an expansible sealing ring 40 rotatable with the shaft and in slidable sealing engagement with the member, the increase in peripheral sealing pressure between the ring and the member due to centrifugal force with increase in shaft speed is reduced by centrifugally-actuated means 30 acting on the ring and carried by the shaft. The ring 40, which may be of carbon, is transversely split by a stepped cut 58 and resiliently engages the bore 55 of a member 14 secured to the shaft 12. It is also pressed axially into sealing contact with an end face 48 of a ring 46 by springs 52 mounted in sockets 50 in a rim 24 of a cylinder 16 fixed to the shaft 10. Pins 30 pivotably mounted in holes 26 in the rim 24 engage at one end 38 in recesses 41 in the ring 40 and have enlarged portions 32 at the other end. In operation, as the shaft speed increases, the portions 32 move outwardly to cause the ends 38 to act on the ring to oppose its expansion due to centrifugal force and thus maintain its peripheral sealing pressure substantially constant at all speeds.
Patent GB-874064-A (GB)
Title: Improvements in or relating to a method of combating slime-forming micro-organisms in industrial water
IPC: C02F1/50
Filed: 1960-04-19
Abstract: Slime-forming micro-organisms in water &c. used in paper-making &c. or in the textile industry or in distilling are reduced or destroyed by adding to the water, continuously or batchwise, 5 to p  100 p.p.m. of one or more esters of a haloacetoacetic acid of the formula <FORM:0874064/VI/1> where X is a halogen atom, and R is a substituted or unsubstituted hydrocarbon radical which may be aliphatic, cycloaliphatic, or aromatic, e.g. with a halogen atom or a nitro-group substituent, or is a functional group containing oxygen.
Patent GB-775576-A (GB)
Title: Improvements in or relating to snap action mechanisms, particularly suitable for electric switches
IPC: H01H5/18
Filed: 1954-05-11
Abstract: 775,576. Thermal switches. GENERAL ELECTRIC CO., Ltd., HOWARTH; P., and RYCROFT, J. L. May 11, 1955 [May 11, 1954], No. 13731/54. Class 38(5) A snap action mechanism suitable for use in a switch comprises a toggle assembly formed by a lever 2 biased by a spring 10 and pivoted at 6, a bowed spring 3 pivotally engaging the lever at 5, and a tension member 4 connected to the free end of the bowed spring 3 and secured at 11. The spring 3 and member 4 are limbs of a trifurcated blade which carries a contact 12 which co-operates with a fixed contact 13. The opening -movement is limited by an adjustable stop 14. In a modification (Fig. 2, not shown), the pivot for the lever is a spindle mounted on brackets on the base. The Provisional Specification describes a further pivoting means in which a turned down portion of the lever engages a groove in the horizontal part of the base. The switch is operated by an expanding rod acting on the point 9. Specification 653,139 is referred to.
Patent GB-559318-A (GB)
Title: Improvements relating to electric discharge lamps
IPC: H01J61/02
Filed: 1942-09-30
Abstract: 559,318. Metal-vapour lamps. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd., and ALDINGTON, J. N. Sept. 30, 1942, No. 13745. [Class 39 (i)] In a metal vapour discharge lamp solid electrodes 1 and 20 are mounted with their axes at any angle less than 180 degrees and their extremities are so shaped as not to intercept the angle over which light from the arc is required to be projected. The surfaces of the electrodes are cut away at 10 and 13 in order to effect this latter condition. A shield 17 of molybdenum is provided to intercept rising currents of metal vapour and, when the electrodes are of tungsten particles rising therefrom tend to alloy themselves with the molybdenum at the temperatures prevailing and are thus removed from circulation. In a numerical example the bulb 1 is 110 mms. in diameter, the anode is a cylinder 17.5 mms. in diameter and 35 mms. long, and the cathode is a block 12 mms. diameter and 20 mms. long. The arc gap is 12 mms. and the shield 17 is 4 mms. thick. Specifications 549,373, [Group XXXVI], and 555,545 are referred to.
Patent GB-398956-A (GB)
Title: An improved method of and means for casting rain water pipes and other symmetrical metal articles
IPC: B22C13/10
Filed: 1932-05-13
Abstract: 398,956. Moulding-machines. ROBINSON, Ltd., T. W. and PAGETT, W. V., Dennis Park Iron Works, Stourbridge, Worcestershire. March 13, 1932, No. 13770. [Class 83 (i).] Guiding flasks and moulds.-In making a mould for a rain water pipe or other symmetrical metal article, a pair of identical flasks 2, Fig. 7, are used successively with a pattern h, Fig. 1, projecting through a fixed stripping plate a on which each box rests during filling and ramming, the pattern being carried by a vertically-movable plate e which also carries flask-locating means k, l. The plate e is moved vertically by pressure fluid, electric means, or by gearing in boxes c, shafts g, and a hand wheel f, its rise being limited by adjustable stops p, Fig. 4. The aligning means comprise round and square pegs l, k, adapted to engage round holes n, x and a square hole m and aligned slots y of the plate a and flask 2 respectively. The opening through the plate a may be cut away, as at j, Fig. 4, or be larger than the pattern and made to fit by interchangeable plates q. In assembling the mould halves a round and a square peg are used to align them and are then withdrawn. Flasks.-Each flask has partitions u, the end pockets v being left empty of sand to facilitate the insertion of a core. Patterns.-The pattern may be a complete cylinder so that it can be rotated when worn.
Patent GB-1424042-A (GB)
Title: Feeding device for strip-formed image or pattern supports
IPC: H02P8/14
Filed: 1973-03-22
Abstract: 1424042 Intermittent film feed P R M H IRISSOU and P J F J SARDA 22 March 1973 [23 March 1972] 13822/73 Heading G2E [Also in Division H2]  An intermittent feed device for a strip carrying a series of images of patterns e.g. a cine-film, comprises a step motor having a rotor mechanically coupled to a driving wheel which engages and advances the film, and a stator coaxial with the rotor and having a plurality of electromagnetic poles; a generator provides sequences of pulses, each sequence successively energizing the stator poles to rotate the rotor and hence the driving wheel to advance the film by one frame, at the end of each sequence the same set of stator poles remaining excited. In Fig. 1, the rotor 1 and stator 4 which comprise eight and twelve poles respectively, are shown notionally divided into four sectors by the lines X,X, Y,Y. The three poles in each stator sector are excited in succession i.e. poles 6a, 6a1, 6a2, and 6a3, are excited together, then the 6b and the 6c poles, the excited stator poles attracting the nearest rotor poles to rotate the rotor and advance the film. The number of pulses in each pulse group from the generator which functions in conjunction with a logic network is equal to a multiple of the number of poles in each stator sector i.e. for the embodiment shown each group contains 3, 6, 9, 12 ... &c. pulses. This ensures that after the final pulse of each group all the 6a poles are energized. Each pulse group advances the film by one frame, the time interval between each group determining the film speed, which is continuously variable. Also the direction of film movement can be immediately reversed by changing the order in which the stator poles are energized. In a projector incorporating the feed device several film driving wheels e.g. four, positioned at the corners of a trapezium, may be controlled by the step motor. Also the supply and take-up film reels may be controlled by the step motor supply and a projection light source may be controlled by circuits associated with the pulse generator so that it is periodically extinguished and acts as a shutter.
Patent GB-561518-A (GB)
Title: Improvements in rulers
IPC: B43L7/00
Filed: 1942-10-02
Abstract: 561,518. Rulers. KELLO,E. Oct. 2, 1942, No. 13829. A Specification was laid open to inspection under Sect. 91 of the Acts, April 16, 1943. [Class 97 (iii)] A ruler made from a single sheet of metal &c. is formed with a longitudinal finger grip 1 and inclined side sections 2, 3 terminating in lower and upturned edges 4, 6 for drawing respectively dry and wet lines.
Patent GB-1350695-A (GB)
Title: Horizontal electrolytic cell
IPC: C25B11/03
Filed: 1971-05-10
Abstract: 1350695 Horizontal electrolytic cell C CONRADTY 10 May 1971 [16 June 1970] 13935/71 Heading C7B An amalgam electrolytic cell for the production of Cl 2  comprises an anode construction which includes a plurality of spaced comb like slotted graphite plates 1. These plates 1 are set transversely to the direction of flow of the mercury cathode, correspond in their length to the width of the cathode, carry on their upper side contact bushes 4 made from conductive corrosion-resistant material such as Pt coated Ti and are connected to power distributor rails 7 (e. g. of Cu). Except for the bush-fitted graphite plates 1, all current conducting parts of the anode construction are excluded from the interior of the cell either (a) by means of troughshaped bellows assemblies 6 of corrosionresistant elastomer or (b) by troughs (11), Fig.4, (not shown) made from sheet valve metal (e.g. Ti) with elastomer seals (12) between the bottoms of the troughs and tops of the bushes 4. As illustrated in Figs. 5 and 6 (not shown), adjusting means are provided for raising and lowering the anode structure. In the (Fig.5) arrangement the cell cover is rigid with the cell whereas in the (Fig.6) arrangement the cell cover is moved when the anode structure is moved.
Patent GB-528900-A (GB)
Title: Improvements in or relating to looms utilizing stationary weft supplies
IPC: D03D35/00
Filed: 1939-03-31
Abstract: 528,900. Shuttleless looms. WRIGHT & SONS, Ltd., M., and WILLIAMSON, W. March 31, 1939, No. 13968/40. Divided out of 528,738. [Class 142 (ii)] The Specification describes the same loom as is described in the parent Specification but the claims are restricted to the use of a selvedge shuttle 30 which passes through a loop of weft at each reciprocation to form the selvedge, instead of at only each alternate reciprocation. Specification 12472/09, [Class 142 (ii)], also is referred to.
Patent GB-878968-A (GB)
Title: Improvements in or relating to tuning devices
IPC: H05K5/04
Filed: 1960-04-21
Abstract: 878,968. Mounting electrical equipment; capacitors. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 21, 1960 [April 24, 1959] No. 14027/60. Class 37. A tuner for decimetre waves includes a valve holder with two contact tongues for at least one valve electrode, and a ceramic tube blocking capacitor the inner electrode of which is soldered directly between the contact tongues and the outer electrode of which is soldered directly to the inner conductor of a coaxial Lecher line. A television channel selector tuner includes a conductor 15, Figs. 1 and 2, which forms a Lecher line with envelope 11, carries stators 19 of a variable capacitor, and is connected to the anode of valve 39 via soldering tongues 37 and blocking capacitor 34. The inner electrode 57 of capacitor 35 is wire-shaped and may be soldered to a metal layer covering the inner surface of ceramic tube 55, on the outer surface of which a metal coating or sleeve forms the outer electrode.
Patent GB-1500094-A (GB)
Title: Apparatus and method for controlling a tape drive to maintain a substantially constant linear tape velocity
IPC: G11B15/43
Filed: 1976-04-07
Abstract: 1500094 Automatic control BURROUGHS CORP 14045/76 Heading G3N A speed control for a tape drive system regulates the speed of the take-up motor DM to approximate constant linear tape velocity. The speed of the motor depends on the contents of the register PR which is set at the beginning of the tape and decremented as the take-up reel is filled. Turns counter TC detects each rotation of the take-up reel and causes the value in the register to be reduced once every six turns, initially by three, then by two and then one. Thus as the speed of the motor tracks the contents of the register PR, it reduces at a first high rate then at a second intermediate rate and finally at a third low rate to approximate the reducing speed of the take-up reel which would give a constant linear tape velocity.