baber/WOPTO huggingface dataset:
Patent GB-1234152-A (GB)
IPC: C11D7/02
Filed: 1969-01-15
Abstract: 1,234,152. Sewer cleaning compositions. MADISON CHEMICAL CORP. 15 Jan., 1969, No. 2307/69. Heading C5D. A sewer-cleaning composition in flowable granular form comprises at least 40% wt. of one or more strong mineral acids and at least 5% wt. of a finely divided silica aerogel, especially a pyrogenic silica having a particle size below 1 micron. The acids may be hydrochloric, nitric or phosphoric, but sulphuric acid is preferred. Optional ingredients are (a) ampholytic detergents such as sodium or disodium salt of N-lauryl beta iminodipropionic acid, (b) corrosion inhibitors e.g. alkali metal chromates or dichromates, dipentylamine or decamethyleneimine and (c) fillers e.g. silica.
Patent GB-1385961-A (GB)
Title: Isothermal garments
IPC: B63C11/04
Filed: 1972-01-18
Abstract: 1385961 Wet suits UNITEX Ltd 18 Dec 1972 [18 Jan 1972] 2367/72 Heading B7U [Also in Division A3] A wet suit comprises a body portion and leg portions 2, 3 and is provided with two slide fasteners 5, 6 each extending from the top of the body portion to the bottoms of the leg portions 2, 3. In an alternative construction the slide fasteners may extend only part-way down the leg portions, stopping short of the knee but ending not more than half-way up the thigh of a wearer. The suit may have sleeves 4 which may be short or full length and provided with slide fasteners extending from the wrist, or the suit may be sleeveless if desired.
Patent GB-411402-A (GB)
Title: Process of and apparatus for the production of barium oxide
IPC: C01F11/06
Filed: 1934-01-23
Abstract: The production of barium oxide from barium carbonate is carried out in apparatus consisting of silicon carbide or of refractories containing it.  Fireclay containing 30--80 per cent or more of silicon carbide may be used.  The treatment of a mixture of barium carbonate and charcoal in a silicon carbide retort using a retort temperature of 1250 DEG  C. is referred to.ALSO:Apparatus, for instance retorts, used in the production of barium oxide from barium carbonate, consists of silicon carbide or of refractories containing it.  Fireclay containing 30-80 per cent or more of silicon carbide may be used.
Patent GB-524243-A (GB)
Title: New or improved floor polisher
IPC: A47L13/30
Filed: 1939-01-25
Abstract: 524,243. Reservoir brushes &c. OSTINS, G. F. Jan. 25, 1939, No. 2540. [Class 19] A floor polisher comprises a container for the polish and an operative surface formed of rubber which. may be replaceable. In one example, Figs. 1, 2, a plurality 20 of rubber strips are located in recesses 21 in the body of the device. Polish is contained in a tin 9 with a perforated bottom 10 closured by a rotatable disc operated by a handle 17. The rubbers 20 at the forward edge are made to converge as at 22 to enter corners. The device can be reversed to complete polishing by a hinged surface 5 which can be secured by a rubber band 6. Polish may be fed on to the floor by bumping the device. A weighted member 25 guided by rods 26 may press on the polish. In place of fabric 5, bristles, feathers, or woollen material may be employed. The shape of the rubber members 20 may be varied. T or double-T forms may be used and may be attached to a rubber foundation plate. In a modification, Fig. 6, a roller 35 may be used to spread polish which may be fed by a threaded piston.
Patent GB-124241-A (GB)
Title: Improvements in or relating to Cycle and like Lamps.
Inventor: SPRATLEY ALBERT VICTOR
IPC: F21S13/00
Filed: 1918-02-13
Abstract: 124,241. Spratley, A. V. Feb. 13, 1918 Lantern cowls.-A detachable wind-screen for cycle and like lamps, adapted to be used in substitution for, or in addition to, the usual windscreen, is formed from a single strip b<1>, a, Fig. 1, of metal, or water-proofed and fireproofed pulp &c., the strip being rolled up so that the part a forms a coil within the part b<1>. For lamps with circular tops, as c, Fig. 1<x>, the part b<1> may be sprung over the top, as a chimney, or may be secured by a coiled spring e, the part a forming the wind-screen within it. By cutting off part of the coil, it can be adapted to various sizes of lamp. For square, oval, or other shapes, the part b<1> may be hinged at one or more places, as at d, Fig. 2, so that it can be opened to permit it to be placed on the lamp; when closed on the lamp, it is secured by a coiled spring e, or by clips &c. The part a may in this case be spiral, or may follow the contour of the lamp. The wind-screen may be provided with a revolving cowl or a fan f, or with both cowl and fan. The wind-screen may also be arranged to revolve with, or independently of, the fan.
Patent GB-1169235-A (GB)
Title: Ten Key Calculating Machine
Inventor: RAHMIG WALTER
IPC: G06C7/10
Filed: 1967-01-18
Abstract: 1,169,235. Calculating apparatus. TRIUMPHATOR-WERK VEB. 18 Jan., 1967, No. 2596/67. Heading G4B. A ten-key calculating machine includes a device for clearing the pin carriage at the end of an adding or subtracting operation which may be moved into an inoperative position during a multiplication operation and returned to its operative position when the multiplication is complete as a result of an additional step taken by the pin carriage. A plate 1 mounted between the sides 49, 64 of the machine supports a bar 2 spring-urged towards the side 64. A pin 3 projecting from the front of the bar 2 engages an inclined slot in a lug 15 on a lever 14 pivoted at 11. The upper end of the lever carries spaced stops 12, 13. A shaft 17 rotatably mounted on the plate 1, supports plates 19, 21 connected by cross-bars 22. A spring 23 normally wages a nose 18 on the plate 19 into engagement with a stop 24. An entrainment plate 27 is slidably mounted on the plate 19 by pin-and-slot connections. The bar 2 is extended rearwardly to form a hook engaging a stop 28 on the entrainment plate. A clearing lever 36 rotatably mounted on the shaft 17 is connected to the pin carriage through a pivoted link 37 and cranked at 34 to co-operate with stops 12 or 13. A release member 41 rockable on the shaft 31 is connected to a pivotable member 53. A two-armed lever 46 is pivoted at 45 to the plate 1 and attached to the bar 2 at 48. Operation.-During addition or subtraction, movement of the pin carriage is limited by engagement of the clearing lever 34 with the stop 13. Reciprocation of a bar 69 at the end of each operation pivots the entrainment plate to rotatable the plate 19, 21 counterclockwise, as seen in Fig. 7. A nose 20 on the plate 21 engages a stop 35 on the clearing lever to return the pin carriage to its inital position. For multiplication, a key is depressed to move a rod 67 in the direction A. The bar 2 moves to lock the rod in its new position, pivot the lever 14, and slide the entrainment plate clear of the bar 69, Fig. 4 (not shown). This brings the stop 12 into the path of the clearing lever whereby an addition movement of the pin carriage is permitted, so that the link 37 rocks release member 41 on completion of the multiplication. The member 53 is pivoted to bring lugs 54 and 55 thereon in the path of a reciprocating member 57 and the lever 46, respectively, whereby the bar 2 is restored to its initial position and the clearing lever operated where the bar 69 is next actuated.
Patent GB-263647-A (GB)
Title: New or improved milk-testing appliance
IPC: G01N15/06
Filed: 1926-01-29
Abstract: 263,647. Thomson, G. S. Jan. 29, 1926. Portable filters.-A filter for milk comprises a cylindrical container 1 reduced in size at one end to form a neck 3 and carrying at that end a resilient washer 9. a filtering fabric or gauze disc 8, and a perforated plate 7 secured in place by a detachable cap 4. At its other end the container is closed by a recessed lid 10 having a nose 12 to which is attached a tube connected to a compressible rubber bulb; the lid 10 is held in place by catches pivotally mounted on the container. In use, the container is filled with milk and the rubber bulb compressed to force the milk through the filter.
Patent GB-675195-A (GB)
Title: Improvements in or relating to magnetic recording member and method of making same
IPC: C09D5/23
Filed: 1949-02-01
Abstract: Particulate, magnetic ferrosoferric oxide, suitable for sound record material is produced by heating particulate a -ferric oxide, e.g. acicular ferrite yellow to 300-365 DEG C in a reducing atmosphere, e.g. carbon monoxide, hydrogen, mixtures thereof, city gas, until the ferric oxide is substantially completely converted to ferrosoferric oxide, and then cooling to below 25 DEG C in the absence of oxidizing agents.  The reducing gas preferably contains 2-8 per cent oxygen. Reduction suitably takes place in an externally fired rotary kiln. Cooling may be effected firstly in an atmosphere of the reducing gas, and then by adding solid carbon dioxide or other cooling agents such as cold carbon dioxide gas or liquid nitrogen, or by quenching the reduced mass in water, or by a refrigerating coil inserted in the kiln, or by packing the kiln in ice.  The cooled mass is stabilized by passing air through it.
Patent GB-269989-A (GB)
Title: Improvements in methods of and means for the delivery of gases and liquids
IPC: B64C25/60
Filed: 1926-01-30
Abstract: 269,989. Drewry, J. S., and Shelvoke & Drewry, Ltd. Jan. 30, 1926. Direct air, gas, and steam pressure apparatus, non-automatic.-Gas or liquid is delivered under pressure at will from a container to apparatus such as oleo gears or hydro-pneumatic shockabsorbers for aircraft, by partially filling the container with liquid and connecting it to a source of compressed gas, the container being positioned so that the level of the liquid is below the outlet when gas is to be delivered but above the outlet when liquid is to be delivered. The container 1 may have an extended base 20 or may be mounted on trunnions' 22 or supports 23, a locking screw being provided, the relative position of the liquid level and outlet being varied by tilting the container. The upper end of the container is formed with inlet and outlet ports 8, 2 connected respectivelv to a source of compressed gas and to the oleo gear &c. 6. The inlet port is controlled by a ball valve 7 adapted to be held down on its seat by a screw-down spindle 11 carrying a rotatable pin 15, the ball being also pressed on its seat by a spring 17 when the pressure in the container exceeds the external pressure. The outlet 2 may also be controlled by a valve, and the inlet may be arranged at the bottom of the container in connection with an internal pipe extending above the liquid level.
Patent GB-1287873-A (GB)
IPC: B23K9/067
Filed: 1970-01-20
Abstract: 1287873 Welding by fusion AUSTRALIA POSTMASTER - GENERALS DEPT RESEARCH LABORATORIES 20 Jan 1970 [22 Jan 1969] 2762/70 Heading B3R [Also in Division H2] An arc welding and heating system is provided with means for initiating the arc, these means being connected in parallel with the circuit containing the electrode and workpiece across which the arc is established. A workpiece comprising two wires 14, 15 twisted together and which it is desired to fuse the ends together and a non-consumable electrode 8 are connected to an electrical source 4, such as a battery, by way of diodes 7, a normally closed switch 51 and a resistor 6 which may be variable. The circuit for initiating an arc between the workpiece 14, 15 and the electrode 8 is also connected across the battery 4 in parallel with the arc circuit and includes the primary winding 21 of a transformer 20, a capacitor 24 and a normally open switch 23, the secondary winding 18 of the transformer 20 being connected directly across the electrode 8 and workpiece 14, 15. To initiate an arc the switch 23 is closed whereupon current flows in the arc initiating circuit to charge the capacitor 24 which charging current flows in the primary winding 21 to induce a voltage in the secondary winding 18 which initiates the arc, the arc then being maintained by the current flowing in the arc maintaining circuit 7, 51, 6. The arc heats the ends of the wires 14, 15 fusing them together and as they burn back the arc will eventually extinguish. Means may be provided to extinguish the arc after a predetermined time, which means comprises a capacitor 33 which charges over an adjustable resistor 30. The charge on the capacitor 33 breaks down a Zener diode 34 to render a transistor 37 conductive thereby energizing a relay 46 which opens the switch 51 to terminate the flow of welding current. In another embodiment the transistor 37 is replaced by a thyristor which when conductive connects a capacitor across the battery 4 so as to reduce the arc current thereby extinguishing the arc.
Patent GB-170787-A (GB)
Title: Improvements in bolts
IPC: E05C1/04
Filed: 1921-01-21
Abstract: 170,787. Matthews, H. Jan. 21, 1921. Sliding bolts.-A sliding door bolt d is retained in the shot position by the engagement of a transverse spring f in a recess e. The bolt slides in the guide c of the plate b and longitudinal members l, hare secured to the plate on either side of the guide. The spring f is riveted to the member h at g and has a plunger i at its other end, projecting through a hole j in the member l, which has a recess k to allow the spring to be depressed. Pivoted to the member l at s is a plate m, which covers the pin i and is retained in position over the member l by a spring p fitting on projections on the member. A recess n is cut in the plate m in which fits the pin i. When the bolt is shot, the spring f snaps into the recess e and is released by pushing aside the plate m and depressing the plunger or pin i, when the bolt can be withdrawn by its handle. A piece r is secured to the member h to make its height equal to that of the members I, m, and the attaching-screws are hidden by the members m, r.
Patent GB-981960-A (GB)
Title: Screw press for extrusion of plastics
IPC: B29C48/03
Filed: 1964-01-22
Abstract: 981,960. Pug-mills. LAVORAZIONE MATERIE PLASTICHE (L.M.P.) S.p.A. Jan. 22, 1964 [Jan. 22, 1963], No. 2777/64. Heading B1C. [Also in Division B5] An intermeshing screw press for extruding plastics is characterized in that mixing sections 11c and 12c are interposed between the two feed compression sections 11a, 12a and 11b, 12b respectively of each screw, comprising reverse flights 15 and 16, formed with gaps 17 angularly staggered in contiguous turns of the flight, the reverse flights on the two screws closely intermeshing to promote mixing. A vent 20 is provided after the mixing section for the removal of evolved gases by suction. A number of the feed-compression and mixing sections may be used in series. In a modification, both the core and flight sizes in the mixing sections are kept the same as those in the feed-compression sections.
Patent GB-224131-A (GB)
Title: Improvements relating to the separation of kauri gum from foreign matter
IPC: C09F1/00
Filed: 1924-02-02
Abstract: 224,131. Evans, S. P. Feb. 2, 1924. Resins.- - Kaurigum is separated from accompanying foreign matter by agitation with an aqueous solution, preferably a solution of salt, of sufficient density to float the gum and subsequent gravity separation. The solution is run into a container 1, divided into two compartments 11, 12 by a valve comprising a fixed grating having tapering bars 13 and a sliding grating 14 operated by a rod 16. The gum is introduced through an opening 6 into the upper compartment and the materials are agitated by stirrers 20. The grating is then closed and the foreign matter and solution in the lower compartment run off through an opening 2. Finally, the grating is opened and the gum and the remaining solution are run off through the opening 2. The process may be carried out under pressure, when the container is, before agitation, completely filled with solution under pressure through a pipe 26, an air vent 24 being opened.
Patent GB-507935-A (GB)
Title: Improvements relating to phase and pole identity means for electrical apparatus
IPC: H02B1/00
Filed: 1938-01-28
Abstract: 507,935. Junction boxes ;. labels. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., and MOOR, E. Jan. 28, 1938, No. 2801. [Class 38 (i)] [Also in Group XV] Identifying-labels 6 consisting of differently coloured or otherwise distinguishable discs are fixed by reason of their shape and dimensions in recesses 7 in an electrical apparatus or covor therefor made of moulded insulating material 5. Small projections 9 on the rim of each recess retain the disc 6 in position when it has been forced past them.
Patent GB-843293-A (GB)
Title: Improvements relating to electric switches
IPC: H01H19/635
Filed: 1958-01-28
Abstract: 843,293. Mechanical switches, without quickaction. PATENT MANAGEMENT Inc. Jan. 28, 1958 [Feb. 7, 1957], No. 2847/58. Class 38 (5). A panel carrying a number of contacts, e.g. 58, 62, has apertures 24 which co-operate with projections 28, 30 on pins 26 on a fixed support 6 so that the panel is maintained parallel therewith during movement imparted to the panel by an eccentric 38. The panel is thus movable through a circular path and the moving contacts co-operate with printed circuit contacts 14, 16 arranged in circular sets 8, 10, 12 on the support 6. The contacts 58, 62 have tubular stems in which conductors may be soldered and are urged towards the fixed contacts by leaf-springs 60.
Patent GB-112540-A (GB)
Title: A Safety Device to Prevent a Back Stroke while Starting an Internal Combustion Engine by a Hand Crank.
Inventor: BLOXAM ARTHUR GEORGE
IPC: F02N15/10
Filed: 1917-02-27
Abstract: 112,540. Bloxam, A. G., (Bosch, R., [Firm of]). Feb. 27, 1917. Turning-gear.-To prevent reversal of the engine at starting, the movement of the starting- handle to engage the engine shaft is utilized to cut out the ignition in the event of the timing being so far advanced that ignition would occur before the crank passes the dead centre. In the arrangement shown in Fig. 4, b is the primary winding of a magneto and c, d the interrupter. During normal running, an igniting current is generated in a secondary winding (not shown). In the event of the timing-lever f being set in its advance-spark position and the starting-handle l being engaged with the engine shaft, contacts p, q are closed and the primary current earthed through the connexions b, t, u, 10, 8, 6, 4, 12, 5, 7, 9, 11, p, o, and q. By turning the lever f into its position for retarded ignition, the connexions between the contacts 6, 7 and 8, 9 are broken, thus closing the primary circuit and enabling ignition to occur. According to a modified construction, a rotating switch is mounted upon the armature shaft and carries a carbon contact which engages contact pieces in an insulated disk. When the switch portion carrying the carbon contact is set for advanced ignition, any movement of the starting-handle closes a switch similar to that shown at o, p, q, Fig. 4, and earths the primary current. In a further modification, a rotary switch having a carbon contact, as in the modification referred to above, short-circuits the primary current as an alternative to earthing it. Cther modifications are described in which the invention is applied to magnetos having interrupters actuated by cams for breaking the primary circuit. In the arrangement shown in Fig. 10, an auxiliary magneto 36, actuated by the starting handle, supplies the current at starting. The main magneto 30 is connected to a distributor 35 in the ordinary way, the starting magneto being connected to the same distributor through a ring 41 and a contact 42 which is set so that ignition can occur only when the piston has passed the top dead centre. At starting, the auxiliary magneto is driven from the starting-handle through a flexible shaft 51 and the current from the main magneto is earthed by closing the switch p, q, o. The invention may be used in conjunction with battery ignition.
Patent GB-1292651-A (GB)
Title: Improvements in or relating to sintering
Inventor: HARRISON JOHN DAVID LAWRENCE
IPC: B22F3/12
Filed: 1969-01-17
Abstract: 1292651 Powder metallurgy UNITED KINGDOM ATOMIC ENERGY AUTHORITY 14 Jan 1970 [17 Jan 1969] 2980/69 Addition to 1088724 Heading C7D Metal powders e.g. Fe, Cr, Ni, Mo, W, Ti, Zr, Nb and their alloys are compacted in a gas containing < 50 ppm each of oxygen and water vapour and sintered in a reducing atmosphere e.g. H 2  or Co optionally containing CH 4 , N 2  or A. Fissile and fertile metals are excluded from the process. Metal powders are preferably produced by reduction of oxides to particle sizes L10 microns. Argon is the preferred atmosphere for compaction and also for handling the powder prior to compaction e.g. ball milling. Examples are given of the production of sintered Fe, mild steel containing 0À3%C, 1À7%Mn and Cr.
Patent GB-546041-A (GB)
Title: Improvements in electric lamp holders and the like
IPC: H01R33/46
Filed: 1941-03-05
Abstract: 546,041. Lamp-holders ; binding-posts. BELLING & CO., Ltd., BELLING, C. R., and HIBBERD, H. M. March 5, 1941, No. 3012. [Class 38 (i)] A lampholder &c. is fitted with spring-pressed plunger terminals so constructed that the spring serves also to secure the supply wire to the terminal by means of a U-shaped member that grips the wire between it and a metal plate associated with the terminal. The plunger d projects through an insulating plate b secured in a metal housing a, and has a double armed extension d<1> passing through a second insulating plate c. The spring e within the plunger d abuts at its lower end against an inverted U-shaped member g whose arms pass through the plate c. The member g can be lifted by pressure on its arms to open a space between it and a metal plate h for the insertion of the supply wire.
Patent GB-449097-A (GB)
Title: Improvements in clutch mechanism for change speed and reversing gear
IPC: F16D48/02
Filed: 1935-01-31
Abstract: 449,097. Combined friction and positive clutches. REID, J. C., Linwood, near Paisley, Renfrewshire, and WILLANS, K. W., Bush House, Aldwych, London. Jan. 31, 1935, No. 3154. [Class 80 (ii)] In combined friction and positive clutches, both of which are operated by fluid-pressure pistons, the friction-clutch piston forms a valve so controlling the admission of pressure fluid to the positive-clutch cylinder that the positive clutch engages only after the friction clutch is engaged. Pistons p and p<1> carry friction and positive clutch elements D and E, co-operating with a groove D<1> and a toothed ring E<1> in one clutch member d<2>, and are movable in radial cylinders C and C<1> formed in the other clutch member d<3> which is keyed to a shaft A. For engaging the clutches, a valve V is turned so that pressure fluid passes from a supply conduit c<7> through a passage G in the shaft and passages e to the inner ends of the cylinders C. The pistons p are thus moved outwards to engage the friction clutch, the fluid above the pistons passing through passages c<4>, leading to the cylinders C<1> between the ends thereof, through passages c<1> and F, and through the valve V to exhaust. Passages c<3>, connecting the inner ends of the cylinders c<1> to the cylinders C between the ends of the latter, are uncovered by the pistons p as the friction clutch engages, and pressure fluid then acts to engage the positive clutch. For disengaging the clutches, valve V is turned so as to put the passage F into communication with the supply conduit c<7> and the passage G into communication with the exhaust. Thus, the positive clutch is first disengaged, thus uncovering the passages c<4> for the passage of pressure fluid to above the pistons p. The passages c<3>, c4 are formed in plates secured to the side of the member d3. Spring-loaded valves K inserted in the passages c<3>, and, if desired, in the passages c<4>, have restricted through-passages h, whereby passage of pressure fluid is restricted while the valves open to permit free exhaust. Thus the engaging movement of the positive clutch and the disengaging movement of the friction clutch are retarded.