baber/WOPTO huggingface dataset:
Patent GB-357509-A (GB)
Title: Treatment of phosphate fertilizer compounds
IPC: C05B1/06
Filed: 1930-04-07
Abstract: Phosphatic fertilizers are obtained by reacting phosphatic material with a strong mineral acid in a closed container and subsequently admitting ammonia thereto.  Acids specified are sulphuric or phosphoric acid, with or without ammonium sulphate or phosphate respectively, or mixtures thereof.  The mixture with ammonium salts may be obtained by passing ammonia into the acid or acids. Substances such as leather, hair, wool, feathers, fish, scraps, ammonium sulphate, cyanamide, sodium nitrate, and also, if desired, potassium compounds, may be added before or after the acid treatment. The treatment is preferably effected in a horizontal rotating autoclave.  After charging, it is sealed and, if desired, heated; subsequently the autogenous or applied pressure is intermittently released.  The autoclave is then partially evacuated, gaseous, anhydrous or aqueous ammonia is admitted, and the product is cooled and agitated.  Sawdust may be added.  After ammonification, the mass may be heated to remove water.  Specification 7234/13, [Class 1 (iii), Oxides &c., Metallic], is referred to.ALSO:Phosphatic fertilizers are obtained by reacting phosphatic material with a strong mineral acid in a closed container and subsequently admitting ammonia thereto.  Acids specified are sulphuric or phosphoric acid with or without ammonium sulphate or phosphate respectively, or mixtures thereof.  Substances such as leather, hair, wool, feathers, fish, scraps, ammonium sulphate, cyanamide, sodium nitrate, and also, if desired, potassium compounds, may be added before or after the acid-treatment.  The treatment is preferably effected in a horizontal, rotating autoclave.  After charging, it is sealed, and, if desired, heated; subsequently, the autogenous or applied pressure is intermittently released.  The autoclave is then partially evacuated, gaseous, anhydrous or aqueous ammonia is admitted, and the product is cooled and agitated.  Sawdust may be added.  After ammonification, the mass may be heated to remove water. Specification 7234/13, [Class 1 (iii), Oxides &c. Metallic], is referred to.
Patent GB-548514-A (GB)
Title: Improvements relating to tubular heat interchange apparatus
IPC: F28D1/03
Filed: 1941-08-28
Abstract: 548,514. Radiators for motor vehicles &c. SERCK RADIATORS, Ltd., and SHELTON, G. Aug. 28, 1941, No. 10992. [Class 64 (iii)] Tubes a of elongated cross-section inserted through flanged holes in thin plates d forming passages for the cooling air are each formed on one or both sides with one or more longitudinal depressions b to impart lateral support to the tubes. The flanged holes in the plates are shaped to fit closely the outer surfaces of the tubes.
Patent GB-544039-A (GB)
Title: Improvements in or relating to remote-control wireless receivers
IPC: H04B1/16
Filed: 1940-06-28
Abstract: 544,039. Switching systems. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). June 28, 1940, No. 11028. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 2, 1941.] [Class 38 (iv)] [Also in Groups XL and XXXVII]  A hand-driven dynamo-electric machine is provided at a remote control point to operate on- and-off switches at a wireless receiver. In one form, Fig. 1, the dynamo 9 energizes a relay coil 5 which closes a switch 2 in the primary of a mains transformer 1, and the switch is held closed by a relay coil 6 energized by the secondary of the transformer until the coil is short circuited by the closing of a distant switch 12. In a modification, the two coils 5, 6 are replaced by a single coil. In a third modification, Fig. 3, an on-and-off switch 20 is opened by a spring 24 released by a catch 25 when electromagnet 26 is energized through a distant switch 32 by the dynamo 33 ; and when another electromagnet 30 is energized through another distant switch 35 by the dynamo 33, a catch 29 releases another spring 28 which again closes the switch 20 and recocks the spring 24. Following this, a locally energized motor drives the pinion and rack 31, 27 thereby recocking the spring 28. This motor may be one used for volume control.
Patent GB-1090883-A (GB)
Title: Endless conveyor
IPC: B65G17/06
Filed: 1965-03-16
Abstract: 1,090,883. Conveyers. H. KNAUST and U. VON KRITTER. March 16, 1965, No. 11078/65. Heading B8A. A conveyer comprises plates 1 with a weldedon tube 2 at one end and a slotted guide of angle section 3 at the other. A roller shaft 4 passes through the tube 2 and through a hollow chain pin 6 which carries rollers 5 of two lateral chains. The slotted guide 3 with its associated tube 2 enables adjacent plates 1 to pivot through an upward angle of 35 degrees, Fig. 3 (not shown), and through a downward angle of 60 degrees, Fig. 4 (not shown).
Patent GB-166708-A (GB)
Title: Improvements in and connected with electrical relays
IPC: H02P1/20
Filed: 1920-04-21
Abstract: 166,708. Igranic Electric Co., Ltd., and Bergmann, F. April 21, 1920. Master control systems.-In motor controllers of the separately-actuated contactor type, a safety relay provided with a series winding and a shunt winding reinserts the starting-resistance when the motor is heavily overloaded, for example when the driven element such as a winch or capstan becomes jammed. The relay is arranged so that it does not respond to the temporary rise of current during starting. In the arrangement shown in Fig. 1, the safety valve J has one winding in series with the motor arma. ture A, and another conjointly-acting winding which becomes connected in shunt when the last starting resistance contactor c<4> has closed its contact 47. In case of jamming, the combined effect of the two windings is sufficient to attract an armature and break the circuit of the first resistance contactor c<1>, after which the other contactors open and reinsert the full resistance, In a modification, the shunt coil is controlled by a separately responsive voltage relay. In other modifications, the series coil is not connected to the line until the end of the starting period. A simpler modification has the shunt coil permanentlv connected across the terminals of the motor armature.
Patent GB-807159-A (GB)
Title: Improvements in or relating to the formation of shaped blanks from sheet material
IPC: B21D28/02
Filed: 1955-04-18
Abstract: 807,159. Punching. RHODES, C. J., and RIDGWAY, H. April 18, 1956 [April 18, 1955], No. 11090/55. Class 83 (4). A blank punching press has mating stops which positively arrest relative movement of the dies to prevent the male die entering the female die. The male and female dies 6, 7, which are mounted on the ram 5 and bed 8 of a crankoperated press, are each provided with four hardened steel stops 11, 12 respectively, the surfaces of which are flush with or project slightly beyond the faces of the respective dies 6, 7. To prevent undue elongation of the frame when the male die contacts the work, the frame is pre-compressed by, say, a 120 tons force applied through four tie-rods 3, or alternatively the frame is made of unusually heavy construction. Play in the moving parts is taken by hydraulic or pneumatic loading applied to a piston 14 connected by rods 18 to the ram 5 and an associated cylinder 15 secured to the frame.
Patent GB-1012122-A (GB)
Title: Improvements in and relating to fasteners
Inventor: SECKERSON CLIFFORD ALEXANDER
IPC: F16B5/12
Filed: 1962-03-22
Abstract: 1,012,122. Spring clips. F. T. PRODUCTS Ltd. March 13, 1963 [March 22, 1962], No. 11092/62. Heading E2B. A spring clip is formed in a U-shape each limb of which has an aperture whose bottom edge is provided with prongs 21, 22 which extend upwardly of the clip. The limbs are bent about axes A, A and B, B whereby outward pressure on the prongs tends to rotate the free ends 23 of the limbs inwardly. In an embodiment only one limb of the clip has an aperture. Two or four claws may be formed either upstanding or laterally projecting from the web of the U to engage trim material.
Patent GB-1493546-A (GB)
Title: Terminal for apertured circuit panel
IPC: H01R12/58
Filed: 1976-03-19
Abstract: 1493546 Electric couplings MOLEX Inc 19 March 1976 [26 March 1975] 11097/76 Heading H2E A terminal for attachment to a wire prior to insertion through an aperture 14 in a panel 16, comprises a nose section 24 having at one end a first pair of wing members 32 for gripping the wire conductors 18, and at its opposite end a second pair of wing members 30 which in use is crimped to conform to the cross-sectional shape of the aperture 14. The first and second pairs of members are separated by recesses 16, the edges of which define, in use, an opening through which the conductors 18 are exposed. As described, the edges of the recesses 16 define a ramp to aid insertion of the terminal into an aperture 14, stop tabs 38 on wing members 30 and stop tang 40 on a conductor support area 28 preventing terminal removal after insertion. A crimp section 22 grips wire insulation 20 in use.
Patent GB-1344734-A (GB)
Title: Curing agent for epoxy resins
IPC: C08G59/58
Filed: 1971-04-23
Abstract: 1344734 Curing epoxy resins DOW CHEMICAL CO 23 April 1971 [23 April 1970] 11206/71 Heading C3B A curing agent for epoxy resins comprises: (I) 45-55 parts by wt. of an aromatic diamine, (II) 5-15 parts by wt. of an epoxy novolac, (III) 25-48 parts by wt. of an aralkanol having the formula in which n is 0 to 3; R is H or C 1-3  alkyl and R<SP>1</SP> is H, C 1-6  alkyl, halogen or C 1-5  alkoxy; and (IV) up to 8 parts by wt. of an aromatic acid. I may be methylene dianiline. II may have an epoxide equivalent of 172-210. III may be benzyl alcohol and IV may be salicylic acid. The curing agent cures epoxy resins at room temperature.
Patent GB-350640-A (GB)
Title: Improvements in electric heating elements
IPC: H05B3/50
Filed: 1930-04-09
Abstract: 350,640. Electric radiators. ROSS, F. A., 23, The Broadway, Tynemouth. April 9, 1930, No. 11232. [Class 39 (iii).] A heating unit comprises a resistance wire embedded in a refractory insulating material which is contained in a sheath which can be compressed without being extended ; further compression is applied by casting within an outer casing or sheath so as to provide a solid unit. As shown in Fig. 1, the resistance element a is embedded in magnesium oxide &c. b and enclosed in a split metal tube e, which is then reduced in diameter by making its sides overlap under pressure so as to compress the refractory material into a solid mass. An outer metal casing d having radiating fins f is then cast on, the casting being arranged to give maximum contraction around the central element. The metal sheath, instead of being in the form of a split tube, may consist of two channel or U-shaped metal sheaths fitting into one another. Fig. 4 shows such a construction in which the resistance element a is embedded in refractory material b within a channel-shaped sheath e, the two parts of which are compressed and the sides of the outer part bent over as shown. The unit is then cast with an outer metal casing d having concave ribs g, the inner surfaces of which are plated, vitreous enamelled, &c. so as to form a heat reflector. Ribs h are formed at the back of the casting and are covered by a sheet-metal back j so as to form a series of air passages in which air is heated by contact with the ribs, as described in Specification 317,929, [Class 39 (iii), Heating by electricity]. The sheet-metal back j may be polished to prevent radiation of heat to the wall &c. against which the heater is fixed. According to the Provisional Specification the metal sheath e may be omitted.
Patent GB-818785-A (GB)
Title: Improvements in or relating to electronic switches
Inventor: PARKER ERIC
IPC: H03K17/52
Filed: 1957-04-05
Abstract: 818,785. Gating circuits. DECCA RECORD CO. Ltd. March 19, 1958 [April 5, 1957], No. 11250/57. Class 40 (6). [Also in Group XL (b)] A switching circuit for applying two or more signals in sequence to an output circuit comprises a multi-gap gas-filled sequence tube the cathodes of which are connected each to the anodes of an associated pair of rectifiers so that as the tube switches its discharge from one gap to the next signal input circuits which are connected respectively to the cathodes of one of the rectifiers of each pair are sequentially connected to an output circuit associated with the cathode of the other rectifier of the pair. The Figure shows a switching circuit for connecting input signals applied to leads 21, 22 ... 30 to a common output terminal 15. The multi-gap gas-filled sequence discharge tube 10 is caused to step its discharge forward from the common anode 11 to a given one of the cathodes 12 in dependence upon control signals applied to guide electrodes 13. The input signal level is such that if for example the first anode/cathode gap is conducting rectifier 31 passes the input signal at 21 through to rectifier 41 and thus to the output terminal 15. The cathodes of the rectifiers 41, 42 ... 50 are biased by means of a high-impedance biasing circuit to a potential below the anode potential of the tube 10 by an amount which exceeds the highest input signal voltage to be switched. In a modification the cathodes of the rectifiers 41, 42 ... 50 are connected to separate respective output circuits each of which has an appropriate biasing potential applied to it. The switch may be used for switching control signals for controlling off centering and/or rate of scan of timebase circuits in a radar display system as described in Specifications 744,640 and 818,477.
Patent GB-1201532-A (GB)
Title: Improvements in or relating to gates
IPC: E06B11/02
Filed: 1968-03-08
Abstract: 1,201,532. Gates. WELLINGTON ENG. CO. Ltd., 8 March, 1968 [6 April, 1967], No. 11301/ 68. Heading E1B. A gate comprises a tubular metal frame 1, 2, 3, 4 having spaced horizontal cross-members 10, 9, 8, 7 and struts 5, 6, adjacent crossmembers being on opposite sides of the struts and the cross-members being more closely spaced at the bottom. The number 2 has extension 11 and 12 for hinging to a post. The frame may be welded from four separate members or the numbers 1, 3, 4 may be formed as 1 piece and welded to member 2.
Patent GB-838897-A (GB)
Title: Compost making device
IPC: C05F17/02
Filed: 1958-04-09
Abstract: 838,897. Chopping refuse; compost making apparatus. CARMICHAEL, J. April 9, 1958 [April 9, 1957], No. 11311/58. Classes 5(1) and 111. [Also in Group II] Household refuse to make compost is cut up in a tank between rotated radial teeth 79 passing between fixed teeth 69, the teeth 79, Fig. 5, being yieldable backwards on meeting any very hard material. The teeth 79 are the sharp ends of levers 73 pivoted on radial arms 71 and urged to forward position by springs 78.
Patent GB-1490963-A (GB)
Title: Throat gas cleaning installations
IPC: C21B7/22
Filed: 1976-03-22
Abstract: 1490963 Throat gas cleaning installation GOTTFRIED BISCHOFF BAUKOMPL GASREINIGUNGS - UND WASSERRUCKKUHLANLAGEN KG 22 March 1976 [28 March 1975 16 Aug 1975] 11359/76 Heading B1R A throat gas cleaning installation, for pressurized blast furnaces with a differential pressure annular gap washing arrangement, comprises a throat gas conduit 1, an annular gap pipe 2 and an axially adjustable inner element 3, both of matching conical shape widening in the direction of gas flow to give an annular gap 5 of increasing diameter, the inner element 5 being included as a controlling member in a regulating circuit for controlling the gas pressure at the throat of the blast furnace, and a washing-liquid spray nozzle 4 located upstream of the inner element 3. The inner element 3 preferably has a conical extension 6 extending into a collection chamber 7. The positioning rod 10 for the element 3 is located in bearings 9 which may be mounted on gas flow directing vanes to produce a helical flow of gas. The vanes may alternatively be used to rotate the element 3 about the axis of rod 10. In an alternative embodiment (Figure 4), a venturi tube joins conduit 1 to pipe 2 and a tube 12, into which scrubbing liquid from the nozzle 4 is sprayed, is located upstream of the element 3. The element 3 and annular gap pipe 2 may have rough surfaces.
Patent GB-315750-A (GB)
Title: Improvements in and connected with sorting devices for timber and other materials
IPC: B07C5/14
Filed: 1928-04-17
Abstract: 315,750. Anfinset, L. April 17, 1928. Separating and sorting gauges.-Apparatus for sorting timber according to dimension comprises a pair of co-operating doors one of which is hung on a horizontal pivot pin extending transversely over the conveyer and is adapted to be swung by the timber passing thereunder while the other extends obliquely over the conveyer and is controlled by the movement of the first in dependence on a dimension or dimensions of the timber passing so as to allow the timber to pass on or to be discharged. The timber is carried on a conveyer 1 under a door 2 mounted on a pivot 2<A>. The door is fitted with a curved arm 5 along which is adjustably mounted a cam 6A to take account of the thicknesses. A projection 7 is adjustable along the lower edge of the door to take account of the widths. The passing timber raises the door and the cam engages a pivoted lever 10, 12 connected by a link 13 to a two-armed lever 14, 16 by which the second door 3 is operated. This lever is connected to a counterbalanced lever 21 to which the door 3 is pivotally attached, the door lying slantwise across the conveyer. The arm 16 of the lever 14, 16 is connected to a rod 18 slidable on the lever 21 and carrying lugs 19 by which a pivoted hook 23 is engaged to project or withdraw a roller 24 from the path of a cam 25 in one with a pivoted depending arm 26. The link 13 passes through a locking device 27. This comprises a plate 30 adapted to engage either of two notches 31, 32 in the link so as to hold it against movement, the plate being normally held off by springs and actuated by means of a pedal 28 over which the timber passes. Timber passing, if of correct width and thickness, lifts the gate 2 so that the top part of the cam 6<A> engages the lever 10 the link 13 being drawn to the right clear of the notch 31. The pedal is then depressed but the notches are out of alignment with the plate 28. The end of the beam clears the door 2 and the link 13 returns, the notch 13 becoming engaged with the plate 28 and locking the rod against movement due to a following piece of timber. The length also being correct, the arm 26 is now engaged by the end of the timber and the cam 25 raised, but the roller 24 is not in the path of the cam. The timber is then deflected to one side by the door. If too long, the cam would have been raised before the link 13 returned while the roller 24 was in the path of the cam and in this case the cam tilts the lever 21 to raise the door and allow the timber to pass on to another gauging device. If too wide or too thick, the lower part of the cam 6A engages the arm 10 and the link 13 is drawn further to the right so that the plate 28 engages the notch 32 and the cam 25 in turn allows the timber to pass under the door 3.
Patent GB-965477-A (GB)
Title: Improvements in or relating to electromagnetic relay group assemblies
IPC: H01H51/06
Filed: 1962-03-26
Abstract: 965,477. Electromagnetic relays. SIEMENS & HALSKE A.G. March 26, 1962 [March 29, 1961], No. 11382/62. Drawings to Specification. Heading H2B. A group of relays, each as disclosed in Specification 965,476, are assembled by mounting their cores in a common plate. A single cover forms a common sealed housing for the armatures which may be mounted on cut-outs from a single piece of leaf-spring material. The free ends of the cores extend through an insulating plate carrying a printed circuit to which they may be connected by soldering.
Patent GB-350578-A (GB)
Title: Improvements in multiple spindle lathes and like machine tools
IPC: B23B9/10
Filed: 1930-03-03
Abstract: 350,578. Lubricating machine-tools. NEW BRITAIN - GRIDLEY MACHINE CO., Ltd., Chestnut Street, New Britain, Connecticut, U.S.A.-(Assignees of Gridley, G. O. ; 22, West End Avenue, New Britain, Montgomery, D. H. ; Hudson Street, Berlin, and Wheeler, E. ; 210, Farmington Avenue, Hartford, all in Connecticut, U.S.A.) March 3, 1930, No. 11393/31. Convention date, Sept. 21, 1929. Divided on 349,643. Drawings to Specification. [Class 12 (ii).] A multiple-spindle lathe or like machine tool has means for lubricating parts of the machine by oil derived from a hydraulic chuck-operating system, as described in Specification 349,643.
Patent GB-178866-A (GB)
Title: Improvements in and relating to combined electric couplings and switches
IPC: H01R13/703
Filed: 1922-04-24
Abstract: 178,866. Ellinger, O. April 23, 1921, [Convention date]. Switches, quickaction, combined with plug couplings. Quickaction is effected by reaction between double cones f, moved by the plug pins, and annular helical springs l wrapped round the cones and carried in contact making members k slidable along the cones. Each member k bridges two contacts m, n. The plug pins are inserted in sockets e, and a, spring h restarts the cones on withdrawing the plug.
Patent GB-756540-A (GB)
Title: Improvements in or relating to contact plate structures for use in rectifying or contacting columns
IPC: B01D3/20
Filed: 1953-03-06
Abstract: 756,540. Treating liquids with gases. KITTEL, W. March 6, 1953 [March 7, 1952], No. 11594/55. Divided out of 738,414. Class 55(2). A contact plate structure for rectifying columns &c. comprises a tray 1 with upstanding edges, a horizontal slotted plate or lattice 7 lying just below the surface of liquid maintained on the tray, with apertures at the periphery and centre from which depend pipes 8 or baffles so that liquid supplied from the outflow tube 3 and dip cup 4 of a tray above circulates over the upper face of plate 7 and then through pipes 8 and along its under face before returning through the central aperture. Ascending gas is directed by a peripheral cap 2 secured to the column wall below the plate and is prevented by pipes 8 from rising through the openings for liquid. Plate 7 may be made up of sector-shaped sections with slots extending obliquely or almost horizontally and oriented so that issuing gas imparts a tangential component to the direction of liquid flow over the plate. The plate may also be in one piece or comprise a number of concentric annular sections. Inclined guides 9 fixed to cap 2 may assist the flow into pipes 8.
Patent GB-639034-A (GB)
Title: Improvements in canning machines
Inventor: BALL WILLIAM
IPC: B21D51/32
Filed: 1948-04-28
Abstract: 639,034. Seaming. IDEAL HOME CANNING MACHINES CO., Ltd. April 28, 1948, No. 11617. [Class 83 (iv)] A can seaming machine, having rotatable upper and lower chuck plates 16, 19, between which the can is held, and first and second operation sealing rollers 37, 38, is characterized in that rotation of the can itself operates means for bringing the sealing rollers successively into operation. The upper chuck plate 16 is driven by a handle 17 or by a power drive and, through the can, drives the lower chuck plate 19, which is connected through reduction gearing 27, 31, 33 and 34 to a vertical shaft 35 extending upwards within the one-piece body 11 and carrying a cam 36. Pivoted arms 39, 40 carrying the sealing rollers 37, 38 bear on the cam through rollers 43 adjustably mounted by means of shims 44, and an arrow 45 on the cam cooperates with an arrow 46 on the body to indicate the neutral position of the sealing rollers. The lower chuck plate 19 is raised to clamp the can by means of a sleeve 23 bearing on it through a spring 25 and thrust bearing 22 and having a handle 24 engaging a cam-slope 21; to allow of this movement, the chuck shaft 30 has a square end engaging a square bore in the bevel gear 27.