baber/WOPTO huggingface dataset:
Patent GB-637773-A (GB)
Title: Improvements in or relating to cycle or like locks
IPC: E05B37/02
Filed: 1948-06-02
Abstract: 637,773. Fastenings. LLOYD, T. H. June 2, 1948, No. 14853. [Class 44] A lock, shown in Fig. 1 applied to a cycle and in section in Fig. 2 comprises a body member 4 on which a bolt 8 is slidably mounted for engagement in a recess 15 in a locking ring 13 so as to secure it in the locking position retaining a member 17, pivoted to a bracket 19 on the cycle wheel. The end of the body has a U-shaped slot 16 and the ring 13 has a similar slot 18 which when turned into coincidence frees the member 17 which may then be swung down and removed from the pivot pin 20. A second ring 11 has a slot 12 to pass the sliding bolt 8 and the bolt has a notch 10 to allow the ring 11 to turn. The bolt may only slide when the ring 11 is in the right position. A projection 9 on the bolt engages in a helical slot in a ring 6 which is turned to shift the bolt. The member 17 is freed by turning the ring 11 to the correct position which may be given by numerals, e.g. arranged as a clock-face. This frees the bolt 8 for displacement by turning the ring 6 in the right direction to free the ring 13 which is then turned to cause the slot 18 to coincide with the slot 16 allowing the end of the member 17 to drop out of the lock.
Patent GB-529589-A (GB)
Title: Improved firing device for hand grenades
IPC: F42C14/02
Filed: 1939-05-18
Abstract: 529,589. Hand grenades. ABTER, A. May 18, 1939, No. 14888. Convention date, May 19, 1938. [Class 9 (i)] The casing 6 of the fuze of a hand grenade of the kind having a firing pin or pins adapted to engage a percussion cap or caps to ignite a delay fuze, as well as other parts of the firing mechanism in proximity to the firing pin, are made of non- oxidizable and preferably thermo. plastic substance or substances and the mechanism and delay fuze 28 are isolated from the atmosphere by means of discs 8 27 of non-oxidizing materials The firing pins comprise a spring 16, Fig. 3, hinged about a pin 14 Fig. 2, depending from a back plate 13 within the casing 6 and loops 17, 18 in the arms carrying the firing points 19, 20 are held in inoperative position by a pin 12 passing through and clamped tc an upper sealing disc 8 by means of a collar 10 and nut 11. The disc is of a flexible non-metallic material such as fibre. A central bore 23 in the stem of the casing 6 houses the fuze cord 28 having an inflammable head 29 at one end and the primer 30 of the detonator 26 at the other end. A sealing disc 27 of tinfoil separates the members 26 and 30. The firing mechanism 5 is housed in the lower part of the grenade handle 2 which may also be of non-metallic material, and a projection 9 of the pin 12 is connected by a cord 31 to a porcelain ball 32 resting on a shoulder 33 at the upper part of the handle. On unscrewing the cover 34 and pulling the ball 32, the sealing disc 8 is ruptured and the pin 12 withdrawn to release the firing pins.
Patent GB-658713-A (GB)
Title: Improvements in or relating to furnaces
Inventor: WRAY JOHN WILLIAM
IPC: F23J1/00
Filed: 1949-06-03
Abstract: 658,713. Travelling grates. INTERNATIONAL COMBUSTION, Ltd. June 3, 1949, No. 14997. [Class 51(i)] In a furnace in which a travelling grate stoker and one or more pendiing dams are employed to cause an accumulation of ash which is released on overcoming the resistance of the dams the dam or dams cooperate with one or more scrapers to effect the accumulation of ash, the dam or dams exerting a substantially constant resistance through its or their entire range of movement. The dam a is pivoted along its upper edge against a fire arch. Ash dislodged by the scraper which is formed from tow portions k<1>, k<2> inclined to one another is piled up against the dam a until the force exerted by it is greater than the ' substantially constant resistance to movement of the dam a provided by a balance weight c and an adjustable counterweight f connected with the dam a by a parallel link system. The counterweight f is arranged so that it is level with the fulcrum e of the lever system when the dam a is in the midposition of its swing. A handle l is also provided for operating the dam.
Patent GB-769663-A (GB)
Title: Electric room and boiler heater
IPC: F24B1/183
Filed: 1955-05-25
Abstract: 769,663. Electric room and back-boiler heaters convertible solid fuel or electric fires. NATAL. A. June 15, 1955 [May 25, 1955], No. 15005/55. Classes 39(3) and 126 An electric room and back-boiler heater is adapted to fit in a fireplace in front of a back-boiler which is heated by rearwardly facing heating elements K. The room is heated by heating elements F and reflectors are provided for both sets of elements. A flange D, E directs the heat from the elements K on to the backboiler. Two switches control the elements F.
Patent GB-1521185-A (GB)
Title: Dredgers
IPC: E02F3/08
Filed: 1976-04-13
Abstract: 1521185 Bucket ladder dredgers INDUSTRIEELE HANDELSCOMBINATIE HOLLAND NV 13 April 1976 [24 April 1975] 15092/76 Heading E1F In a dredger comprising a bucket ladder 2 suspended from a pontoon 1 by pivoted arms 3, 9 and a cable 7, swell compensation devices 5, 8 are disposed between the pontoon and the arms 3, 9 and are so mounted and/or coupled that the increase of the average load on one swell compensator due to a change in the operating depth hb of the bucket ladder is compensated by a substantially equal decrease of the average load on the other compensator and vice versa. The swell compensation devices 5, 8 may include springs but are shown in the form of two pairs of hydraulic units 11, 12 in Fig. 3. The units are interconnected by a conduit 13 containing hydraulic accumulators 16, 17, 18 and pumps 14, 15 coupled to a common motor 19. A calculating device 22 receives signals from position measuring devices 20, 21 on the units and controls the operation of the pumps 14, 15, whereby liquid can be transferred from one pair of units to the other to increase the pressure in one swell compensation device and decrease it in the other. The compensation devices may be pneumatic.
Patent GB-398962-A (GB)
Title: Vacuum steam heating apparatus
IPC: F24D1/00
Filed: 1932-05-27
Abstract: 398,962. Centrifugal pumps. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Nash Engineering Co. ; South Norwalk, Connecticut, U.S.A.) May 27, 1932, No. 15141. [Class 110 (i).] In a vacuum steam heating system of the kind described in Specification 381,684, the system discharges into a closed separating tank S, the water space of which is connected by a pipe 10 to a centrifugal water pump C, and air pump N of the type described in Specification 200,150, [Class 110 (i), Centrifugal and screw fans &c.]. The two pumps are driven by an electric motor M controlled by a water-level switch and a vacuum control switch as in Specification 200,150, these units being arranged above the tank S. The induction of the air pump N is connected through passages 13, 14 to a tank 11 so that it draws up water to prime the water pump, and the float valve 24, 25 then opens so that the air pump exhausts air or gas through pipe 27 from the top of the tank S and from the heating system to maintain the vacuum. The exhaust of the air pump is connected through pipe 15 to a separator 16, from which water is returned to the tank S and air is discharged. Water for priming the air pump may be taken from the separator 16 through pipe 21. Water drawn up by the pump C is returned through pipe 28 to the boiler B. In modifications, the pumping system may be below or at the same level as the tank S.
Patent GB-272515-A (GB)
Title: Stroboscopic speed indicator
IPC: G01P3/40
Filed: 1927-06-08
Abstract: 272,515. Seguin, L., and Seguin, A. June 11, 1926, [Convention date]. Comparison speed - indicators. - Stroboscopic apparatus for use in measuring speeds comprises a device for producing flashes of light, and means for varying the frequency of the flashes, an indicator being provided to show the frequency. In the arrangement shown in Figs. 2. and 4, the flashing of a silent discharge tube 10 is controlled by a make-and-break device operated by an eccentric 37 on a shaft 13. The shaft is driven by a constant speed shaft 12 through a change-speed gear comprising a pair of friction discs 32, and rollers 16, 17 splined to the respective shafts. The rollers are shifted to impart any desired speed to the shaft 13 by hand wheels 6, 6<a>, and the speed of the shaft is shown by an indicator 5. The make- and-break device comprises a pivoted member 38 which is rocked by the eccentric 37, and carries contacts 39, 40 adapted to engage contacts 41, 42 mounted on pivoted arms 43, 44. These arms are held by springs 46 against adjustable stops 48, 49. The contacts are wired to electric supply terminals 9. 9<a> through a condenser 50, and a transformer 51, 52 in such a manner that the condenser is periodically charged, and then discharged through the transformer in order to produce flashes in the lamp 10. Several modified circuits are described. Fig. 6 shows an arrangement in which two condensers 50, 50<a>, and two transformers 51, 51a are provided to flash two lamps 10, 10<a>. In Fig. 7, the leads 60, 61 from the transformer 52 are connected to the lamp 10 through condensers 62. The current passing starts the lamp 10 which is then flashed by the discharge across a gap 64 of a condenser 63. This condenser may be kept charged by separate supply mains L, L<a>. Mercury vapour lamps may be employed. Fig. 9 shows an arrangement in which two such lamps T, T' are connected to two pairs of leads 60, 61 and 60<a>, 61<a>, from transformers 52. The leads 61, 61<a> are connected to condensers 66 which start the lamps, the flashes being produced by the discharge of condensers 67, 67<a>. Two series of flashes irregularly spaced may be given. The make-and-break device may be driven by a variable speed motor, or by fly-wheel controlled hand gear, or a magneto may be substituted. Specifications 248,743, 253,101, and 259,963, [all in Class 97 (i), Optical systems &c.], are referred to.
Patent GB-110611-A (GB)
Title: Improvements in or relating to Electric Flash Lamps.
Inventor: NUTTALL EDMUND
IPC: G09F21/02
Filed: 1916-10-27
Abstract: 110,611. Nuttall, E. Oct. 27, 1916. Supporting. - A battery lamp is carried in a wallet a, Fig. 2, secured by straps c to the wrist or arm of the wearer, and flexible wires connecting respectively t h e metallic part of the battery and the bulb e are arranged in or on a strap g encircling the forefinger so that the lamp circuit is completed by the pressure of the thumb against a contact spring 2 or a loop 4, Fig. 5, forming part of the switch. The Provisional Specification also states that the flexible wires may be connected to rings on the fingers of the wearer so that the circuit may be completed by a slight movement of the fingers.
Patent GB-379337-A (GB)
Title: Improvements in and relating to magnetizing apparatus
IPC: H01H51/32
Filed: 1931-05-26
Abstract: 379,337. Electromagnetic switches. HAUSER, A., 29, Kaarstrasse, Linz-on- Danube, Austria.-(Assignee of Hauser & Co. ; 21, Landstrasse, Linz-on-Danube, Austria.) May 26, 1931, No. 15434. Convention date, May 24, 1930. [Class 38 (v).] A polarized relay for use in alternating- current magnetizing apparatus is connected in parallel with the magnetizing coils for interrupting the magnetizing circuit. The relay is polarized by a permanent magnet 16 and the coil 3 is connected to the alternating current source through a switch 5 and an adjustable choking coil 2. The magnetizing coils are connected to the same source through leads 13, 14 and interposed in the circuit is a switch comprising a fixed contact 12 and a movable contact 11 pivoted at 9 and fixed by means of an insulating piece 18 to a lever 10 carrying an armature 7. The strength of the spring 17 and the attraction of the pole 15 on the armature 7 are such that movement of the armature in the downward direction occurs only when the field generated by the alternating current in the coil 3 is a maximum in a given direction, i.e. at or immediately after the crest of a positive or negative half wave, whereupon the contacts 11, 12 are separated. The armature remains in contact with the core 6 until the switch 5 is opened so that in the meantime the object to be magnetized can be withdrawn from the magnetizing coils.
Patent GB-880450-A (GB)
Title: Treatment of molten ferrous metal
Inventor: CHURCHER THOMAS CHRISTOPHER
IPC: C21C5/46
Filed: 1959-05-06
Abstract: 880,450. Refining steel. BRITISH OXIGEN CO. Ltd. May 4, 1960 [May 6, 1959], No. 15529/59. Class 72 [Also in Group XII] Red fumes formed during oxygen blowing of ferrous metal are collected in a cylindrical or frusto-conical hood 14 secured to the lancet 10, and passed to a recovery plant, or the atmosphere, or fed to a blast furnace. The fumes may be entrained in the oxygen stream by an injector device mounted on the lance and returned in the melt. Specifications 781,116 and 880,449 are referred to.
Patent GB-825104-A (GB)
Title: Improvements in or relating to variable speed transmission
IPC: F16H35/02
Filed: 1957-05-16
Abstract: 825,104. Cyclically variable-ratio gear. WEAN EQUIPMENT CORPORATION. May 16, 1957 [June 25, 1956], No. 15559/57. Class 80(1). A cyclically variableratio transmission between parallel input and output shafts 3, 4 comprises two gear trains, each including an overrunning clutch 6, one train 7, 8, 10 tending to drive the output shaft 4 at a constant speed, which it does, during a part of an operating cycle (e.g. whilst shearing or punching strip or wire fed by the shaft 4); and the second gear train 23, 28, 24, which is adjustable, tending to drive the output shaft variably at a speed sometimes higher, sometimes lower, than the said constant speed whereby the higher speed is effective between said parts of the cycle. The gear-wheel 23 of the second train is eccentrically adjustable on the input shaft 3, as by being mounted fast on a crank-pin 22 adjusted radially in a slot in a shaft head 11 by turning a diametral screw 17, possible only when stationary; or, Fig. 5 (not shown), by axially adjusting an inclined eccentric passing through the axially located internally splined gear-wheel and adjusted through a thrust bearing by turning a stationary screw, possible whilst the machine is running. The eccentric wheel 23 meshes the output wheel 24 through an idler 28 linked at 25, 26 to the output shaft 4 and crankpin 22 to preserve mesh, the output wheel 24 being thus driven with a cyclically varying ratio, and being overrun by the output shaft 4 during those parts of the cycle when its speed is below that of the constant-speed first gear train. A constant-drag brake 5 prevents inertia-overrun of the output shaft 4.
Patent GB-1249513-A (GB)
Title: Rotary cutter with insertable cutting elements and cutting element for use therein
IPC: B27G13/02
Filed: 1969-03-25
Abstract: 1,249,513. Woodworking. SVENSKA INDUSTRIETABLERINGS A.B. SVETAB. 25 March, 1969 [3 April, 1968], No. 15625/69. Heading B5L. A rotary cutter for working comparatively soft materials, such as wood, plastics and the like, comprises at least one cutter unit 3, Figs. 1 and 3, provided with insertable cutting elements 23, the elements being located between abutments 15, 21 provided near the periphery of the unit. A number of units may be secured between a nut and collar 4 on a shaft 1, and each unit is formed around its periphery with a plurality of circular recesses 9. A portion of each recess constitutes an abutment 15 and a further abutment 21 is provided by a member 19 located in a slot in the recess. The cutting elements may be in the form of segments of a cylinder seated on the surfaces 11 of the recesses and urged into engagement with the abutments by clocks 29 on screws 33. In another embodiment, one 109, Fig. 4, of the abutments is formed on a block 105 brazed or otherwise secured in the recess and the element 111 is urged against the abutments 107, 109 by a screw 113 and base 119. In further embodiments, the elements may be formed as prismatic bodies have curved surfaces at their ends engaging the recesses or the recesses have a cut-out so that the elements engage the recesses at spaced apart surfaces. The elements in one cutter unit are staggered with respect to those in adjacent units and are aligned with cut-outs 8, Fig. 3, in those units to permit axial withdrawal from their units. At least the cutting edges of the elements may be of cemented carbide or cutting alloy steel. The elements are reversible so that both edges thereof may be used.
Patent GB-529269-A (GB)
Title: Float for aircraft
IPC: B64C35/00
Filed: 1939-05-26
Abstract: 529,269. Aircraft floats. ARADO FLUGZEUGWERKE GES. May 26, 1939, No. 15631. Convention date, Sept. 2, 1938. [Class 113 (ii)] A float for aircraft is provided with a keel having a portion offset laterally from the plane of symmetry and the remaining portion placed in the plane of symmetry. As shown a keel portion 2 is offset from the line of symmetry and extends from the step 1 to the bow portion 3. Another part 5 is located in the plane of symmetry W of the float, and merges gradually into the other part of the keel at 6. At the bow the keel is on the outboard side entirely.
Patent GB-1146954-A (GB)
Title: Device for the treatment, preferably for steaming and dyestuff setting, especially of textile materials
IPC: D06B19/00
Filed: 1967-04-05
Abstract: 1,146,954. Textile treating apparaus. VEPA A.G. 5 April, 1967 [29 April, 1966], No. 15634/67. Heading D1L. Apparatus for treating e.g. steaming, dye setting and drying textile materials comprises sieve drums subjected to a suction draft, the material being guided on one side only, and fans correlated to the end faces of the drums for producing the suction, the treating medium being returned to the drum from above and below, and the parts of the drums not covered by material being at least partly free from baffles. In a preferred embodiment the apparatus is used for steaming and comprises a chamber 1 having inlet casing 14 subjected to suction and a water seal outlet 17. A trough 9 of water 10 is provided at the bottom of the chamber 1 for the production of steam, heating elements 11 being provided in the trough. Two sieve drums 4 are situated in the chamber 1, spaced from each other a distance greater than twice the material thickness, the material 12 being supported on the upper parts of the drums 4 and hanging in a loop between the drums. Baffle plates 8 are provided above and below the drums to ensure even distribution of the treating medium. The lower part of each drum is provided with perforated baffles 19 slidable relative to each other to control the suction through that part. The chamber 1 is preferably divided into a fan chamber and a treatment chamber, the fan chamber being equipped with heating elements in the path of the treating medium. The intake casing 14 is preferably heated to prevent condensation therein. A casing subjected to suction may also be provided at the outlet; a labyrinth seal 16 may be provided between the intake and/or outlet casing and the chamber 1. The speeds of the inlet and outlet conveying elements and the drum may be adjustable independently of each other.
Patent GB-815413-A (GB)
Title: Process and apparatus for producing sheets of thermoplastic material
IPC: B29C53/78
Filed: 1957-05-17
Abstract: In the continuous production of thermoplastic sheets, a filament or band of thermoplastic material is wound on to a rotating member or former, the juxtaposed convolutions are caused to adhere to one another, and the tube so formed is progressively displaced axially relatively to the former, the tube being finally cut axially and opened out into sheet form.  The adhesion of juxtaposed convolutions of filament or band may be interrupted after a predetermined length of tube has been produced, and a new length of tube started without interruption of the filament or band.  As shown, a drum member 1 is rotatably mounted on shaft 3. Before winding on, the end of the filament is secured to loose ring 9 and when rotation occurs the filament is wound on to drum 1 between ring 9 and nonrotary ring 5, circumferentially adjustable around drum 1, which acts as a stop member. <PICT:0815413/IV (a)/1> <PICT:0815413/IV (a)/2> <PICT:0815413/IV (a)/3> <PICT:0815413/IV (a)/4> <PICT:0815413/IV (a)/5> Nozzle 15 directs adhesive liquid, e.g. acetone, on to the filament immediately before it is wound on to drum 1, or alternatively adhesion may be effected by heating the filaments. The tapering cross-section of ring 5 (Fig. 2) causes axial displacement of the filament being wound over section b but not section a of lateral surface 11 until ring 9 is forced off the drum and a tube consisting of adhered turns of filament is produced.  A roller 13 (Fig. 4) rotatable upon spindle 14 extending radially above drum 1 provides an alternative form of stop member.  Roller 13 is provided with peripheral groove 17 designed to impart to a filament on contact a substantially square cross-section.  Striped tubes or sheets can be produced by winding two or more filaments of different colours and/or different degrees of transparency side by side simultaneously.  The tube may be cut along one side as it is being displaced axially over the drum by a knife secured to the drum, the cutting edge of which projects radially outwards, or by a retractable knife 19, as shown in Fig. 5.
Patent GB-544855-A (GB)
Title: Method of cleaning apparatus for making and dissolving cellulose xanthate
IPC: D01F2/08
Filed: 1940-10-29
Abstract: 544,855. Cellulose xanthate. BAKER PERKINS, Ltd. Oct. 29, 1940, No. 15829. Convention date, April 29. [Class 2 (ii)] In the manufacture of viscose wherein alkalicellulose is xanthated in a closed machine and the resulting xanthate is dissolved in the machine to produce viscose, the machine is cleaned before introducing the next batch of alkali cellulose by washing or rinsing it with a solution of caustic soda. The residual viscose, left in the machine after removal of a batch of dissolved xanthate, is washed out with water or caustic soda and the machine is then rinsed with a caustic soda solution of such strength that it will not detrimentally reduce the alkalinity of any part of the alkali-cellulose below the minimum required for complete xanthation. The rinsing solution preferably contains at least 10 per cent. of NaOH. The washing and rinsing may be carried out as a single treatment by using a sufficiently strong caustic soda solution. The washing liquid containing the dissolved residual viscose may be used as solvent for a subsequent batch of cellulose xanthate provided that it is of appropriate alkalinity, but if it contains too high a proportion of alkali, it is first diluted and then used as solvent. In an example, the machine is washed with a dilute caustic soda solution and then rinsed with a strong caustic soda solution and the machine is then immediately charged with a fresh batch of alkali-cellulose without drying. The washing liquid is diluted and used as solvent for the next batch of xanthate. In another example, the machine is washed with dilute caustic soda solution. The solution washed out is of the same or a lesser alkalinity than that of the final viscose but it is of sufficient alkalinity to prevent any regeneration of the residual viscose. The machine is then rinsed with strong caustic soda solution and without drying is re-charged with alkali-cellulose.
Patent GB-424957-A (GB)
Title: Improvements in or relating to blasting explosive cartridges
IPC: F42B1/00
Filed: 1933-06-02
Abstract: 424,957. Blasting-cartridges. IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. June 2, 1933, No. 16027. Void [Abridged as open to inspection under Sect. 91 of the Acts, Dec. 4, 1933]. [Class 9 (i)] A blasting-cartridge is made with a core 3 of an explosive of high sensitivity and high speed of explosion, separate from the main charge 1. The core 3 may be contained in a tube 2 of paper, metal foil or regenerated cellulose.