baber/WOPTO huggingface dataset:
Patent GB-606678-A (GB)
Title: Improvements in or relating to clutches
IPC: F16D25/10
Filed: 1945-08-22
Abstract: 606,678. Clutches; reverse gearing. HINDMARCH, T. Aug. 22, 1945, No. 21508. [Class 80(ii)] A combined dog and friction clutch between a driving shaft a and a driven element such as a gear d, d<1> comprises inner members b, b<1> carrying V-shaped friction rings which engage with corresponding grooves in the outer driven member d, d<1> and intermediate members e, e<1> carrying dogs such as balls g, g<1> for engaging in recesses h, h<1> in the outer members. The friction elements may be first actuated to engage by pressure fluid supplied to a chamber b<3> between the inner members b, b<1> through passages c, c<1> in the shaft a and then the dog clutch elements by pressure fluid supplied to chambers f<1>, f<2> between the inner and intermediate members through passages f<3>, f<4>. Disengagement of both clutches is effected by pressure fluid supplied to chambers i, i<1> between the intermediate and outer members through passages i<2>, i<3>. In one application, two such clutches are used in a marine reverse gear to connect alternatively two spur gears to their shaft and are controlled by a single control valve. In a bevel reverse gear, Fig. 3, the input shaft k is adapted to be connected direct to the output shaft l or through a bevel train k<3>, k<4>, k<5>, by friction and dog dutches. In this arrangement, the friction clutches are arranged internally of the gears k<3>, k<4> to connect one or other to the driven shaft l and the dog clutches comprises dogs m<1> on either side of a member m axially slidable on the shaft l and operated by fluid pressure in chambers m<2> or m<3>.
Patent GB-1248372-A (GB)
Title: Electroluminescent display device
IPC: H05B33/12
Filed: 1970-05-05
Abstract: 1,248,372. Electroluminescence. NATIONAL CASH REGISTER CO. 5 May, 1970 [9 May, 1969], No. 21529/70. Heading C4S. [Also in Division H1] An electroluminescent display device includes first and second transparent substrates 12, 14 (e.g. of glass), each having a plurality of parallel transparent or opaque conductors 16, 20 on one surface and aligned grooves 26, 28 in the inner surfaces, the substrates, which may be curved or planar, being in cross-array so that cells form at the cross-over points, and electroluminescent material, which may be gaseous or otherwise, being in the grooves. The conductors need not be perpendicular. Edges may be sealed by fused glass layer 36 and in fabrication, the grooves are evacuated by conduit 38 prior to insertion of a Ne, He and N mix at one-sixth to five-sixths atmospheres, for example. In fabrication, opaque conductors 16 may be deposited by photoresist and deposition techniques, these serving as a mask for subsequent exposure of a photo-resist layer (46) (Fig. 3b, not shown), unexposed areas being removed and the substrate etched to produce grooves. Alternatively, Cr may be vacuum deposited over a transparent SnO 2  layer, etched (Fig. 6, not shown), and grooves then formed as previously, the Cr then being removed.
Patent GB-1284515-A (GB)
Title: Improved cyclic process for preparing and working up a hydroxylammonium salt solution
IPC: C01B21/14
Filed: 1971-04-19
Abstract: 1284515 Cyclohexanone oxime STAMICARBON NV 19 April 1971 [11 Feb 1970] 21606/71 Heading C2C The invention comprises a recycle process for the production of cyclohexanone oxime, in which a buffered aqueous reaction medium with an acid reaction, which contains nitrate ions or nitric and nitrous oxides and phosphoric acid and/or bisulphate, is recycled between a hydroxylamine synthesis zone and a cyclohexanone oxime synthesis zone, and in the hydroxylamine synthesis zone nitrate ions or nitric and nitrous oxides are catalytically reduced with molecular hydrogen in the presence of a noble metal catalyst to hydroxylamine, which hydroxylamine is consumed in the oxime synthesis zone, and the cyclohexanone oxime is separated from the aqueous reaction liquid, whereafter this aqueous reaction liquid, before being returned to the hydroxylamine synthesis zone is substantially freed of remaining cyclohexanone and cyclohexanone oxime in a stripping process and fresh nitrate ions or nitric and nitrous oxides required for the hydroxylamine synthesis are supplied, in which the recycling liquid is contacted with nitric and nitrous oxides at an elevated temperature in a contacting zone before the said stripping process, and an oxime-impoverished, cyclohexanone-enriched recycle liquid obtained therefrom is subjected to the said stripping process.
Patent GB-313553-A (GB)
IPC: H01M4/72
Filed: 1928-07-25
Abstract: 313,553. Schneider, O. June 14, 1928, [Convention date]. Electrodes. -The positive electrode of an accumulator consists as shown in Fig. 1 of a series of perforated rings k divided into sectors by longitudinal ribs m, adjacent sectors being at an angle to one another. The electrode is positioned between two cylindrical negative electrodes b, c which are joined together outside the cell.
Patent GB-896625-A (GB)
Title: Improvements relating to the hydrocatalytic treatment of petroleum hydrocarbons
IPC: C10G45/02
Filed: 1959-06-24
Abstract: The colour and colour stability of colour-unstable straight run petroleum hydrocarbon fractions (including aromatic extracts thereof) boiling in the range 150 DEG -300 DEG C. is improved by contacting the feedstock in the presence of hydrogen with a hydrogenation catalyst, suitably cobalt and molybdenum oxides as such or in combined form, and supported on a refractory oxide support such as alumina, at 610 DEG -670 DEG F., preferably 610 DEG -630 DEG F., removing any H2S formed, and recovering the product without redistillation to remove bottoms.  The process is generally performed at a pressure of 50-1,000, preferably 500-1,000, p.s.i.g., at a space velocity of 0,-20 v./v./hr. with a hydrogen feed rate up to 2,000 SCF/B.  Specifications 813,831 and 824,360 are referred to.
Patent GB-336305-A (GB)
Title: Improvements in and relating to indicator scales for use in wireless apparatus
IPC: H03J1/04
Filed: 1929-07-13
Abstract: 336,305. Graham Amplion, Ltd., and Elford, E. N. July 13, 1929. Wireless tuning-apparatus, adjustment devices for. - Adjustment devices for radio tuning elements of the kind wherein switch gear is provided for interconnecting the tuning units, and the appropriate scale is brought automatically into position, have the scales separatively mounted and moved one at a time by the switch gear. As shown, inductances 12, 18 are provided with wave-change switches 13, 23 the operating shaft 27 of which is provided with cams 31, 33 engaging levers 34, 35, 36 for positioning the appropriate scale 38, 39, 40 used in conjunction with a pointer 139 on the condenser control 29. Instead of raising the scales one by one they may be dropped to expose the one in use. The scale may be of translucent material and illuminated from behind. The index of the pointer is blade-shaped to prevent parallax error.
Patent GB-779872-A (GB)
Title: Process for roasting sulphide ores
IPC: C22B1/10
Filed: 1951-05-31
Abstract: Sulphide ores of a grain size of about 1 mm. down to dust fineness are roasted by introducing the ore into the upper part of a furnace and introducing oxygen-containing gas into the lower part of the furnace through a horizontally disposed rotating distributing device, the roasted ore being withdrawn from the lower part of the furnace and the product gas being withdrawn from the upper part, the ore descending with a swirling motion to form a dense phase fluidized bed.  The ore may be introduced in the upper periphery of a cylindrical furnace so that it swirls gradually downwards to the middle of the furnace or alternatively the ore may be introduced axially into the upper part of the furnace and led downwards towards the periphery.  Suitable apparatus is described and claimed in Specification 779,871. Temperature control may be effected by mixing cool burnt ore or dust separated from the product gas with the fresh ore introduced or alternatively inert substances may be added to the ore.  The air for roasting may be admixed with cooled recycled roaster gases.  Reference is made to the roasting of pyrites and zinc blende.  According to an example a cylindrical furnace 3 metres in diameter was charged with 50 tons of pyrites per day in a size of 1mm. down to dust fineness, the ore remaining in the furnace in a layer 2 metres deep for about eight hours.  The roasted product consisting largely of ferric oxide together with a minor amount of iron sulphide and gangue was withdrawn at the bottom of the furnace whilst the product gas which left the furnace at a temperature of 950 DEG C., contained 7 volume per cent of sulphur dioxide and 11.8 volumes per cent of oxygen.  The product gas was cooled in a steam boiled to a temperature of 350 DEG C. and sufficient of this cooled gas was admixed with the roasting air to reduce the product gas temperature to 900 DEG C.
Patent GB-1077038-A (GB)
Title: Epoxy resins having flame-retardant properties
IPC: C08G59/62
Filed: 1966-05-17
Abstract: A polyepoxide composition which may be cured at elevated temperature to obtain a difficulty flammable self-extinguishing resin comprises: (1) a polyepoxide having an average of more than one epoxy group per molecule; and (2) a halogenated b -lactone <FORM:1077038/C3/1> in which R1 is a C1-C6 polyhalogenated alkyl group and R2 represents a C1- 4 polyhalogenated group or hydrogen.  Examples of (2) are 3-trichloromethyl - b  - propiolactone, 3,3 - bis-(trichloromethyl) - b  - propiolactone, and 3,3-bis(trifluoromethyl) - b  - propiolactone.  From 5 to 25 parts by wt. of (2) may be used per 100 parts of (1).  The composition may also contain a curing agent which becomes reactive at elevated temperature, e.g. a polycarboxylic anhydride or an aromatic amine.  The polyepoxide (1) may be a glycidyl polyether of a dihydric phenol.
Patent GB-1199887-A (GB)
Title: Aloe Gel in Crystalline Form and method of making and Reconstituting same
Inventor: MARSH JOSEPH ROGERS JR
IPC: A61K8/97
Filed: 1969-04-29
Abstract: 1,199,887. Lyophilized aloe gel. J. R. MARSH. 29 April, 1969, No. 21779/69. Heading A5B. Lyophilized aloe gel in the form of dry anhydrous crystals is prepared by removing the gel from the leaves of an aloe plant, preferably the aloe vera plant, macerating the gel in a container, screening or filtering the macerated gel, placing the screened or filtered gel in containers within a freezing machine, freezing the gel to from 0C to -120C. and administering a vacuum to the frozen gel in the containers until anhydrous crystals of the gel remain in the containers. Reconstituted aloe gel, having the same physical and chemical properties as aloe gel prior to lyophilization, is prepared by adding water, preferably deionized or distilled water, to the anhydrous crystals prepared as above. The anhydrous crystals may be placed in sealed containers for storage or shipment prior to their use in pharmaceutical preparations, cosmetics and/or toiletries.
Patent GB-775997-A (GB)
Title: Improved enclosure for a line tap or other electric connecting device
Inventor: FLETCHER CLAUD
IPC: H01R4/32
Filed: 1954-07-26
Abstract: 775,997. Cable and wire couplings. BRITISH INSULATED CALLENDER'S CABLES, Ltd. July 26,1955 [July 26, 1954], No. 21795/54. Class 38 (1) An enclosure for a line tap connector comprises two similar substantially-cylindrical insulating parts 1 with interlocking corner projections 8 and interfitting projections 9 and recesses 10, recesses 11, 12 forming slots for the passage of a tapping conductor 14 and a main conductor 13, respectively. The connector itself comprises a slotted screw 15, a nut 16 and a bridge piece 17. The two parts are held together by a binder, preferably of metal strip, lying between ribs 21 and threaded through projections 22. The enclosure may be filled with insulating compound. The plane of division may alternatively be transverse to the length of the enclosure.
Patent GB-949813-A (GB)
Title: Improvements in pre-stressed press frames
IPC: B30B15/04
Filed: 1962-06-06
Abstract: 949,813. Presses. ALLMANNA SVENSKA ELEKTRISKA A.G. June 6, 1962 [June 14, 1961], No. 21851/62. Heading B5F. A press frame comprises spaced yokes 1, which may be semi-cylindrical, between which are two pillars 3 having at their ends integral yoke-engaging protrusions A, B, C, the extension of which protrusions perpendicular to the face A, C is small at their outer edge, and increases towards their base, the whole being subjected to prestressing means 2, e.g. strongly prestressed loops of metal, which press the yokes 1 towards each other against the pillars 3. So-called equalization blocks 4, having similar protrusions to the pillars, may be interposed between the pillars. The protrusions are intended to reduce the contact pressure between the pillars and the yokes and to reduce the risk of failure due to fatigue. Various examples of the design of the protrusions A, B, C are given, e.g. Figs. 2 and 3 (not shown).
Patent GB-384699-A (GB)
Title: Improvements in hand-stamping appliances
IPC: B41K1/08
Filed: 1931-08-01
Abstract: 384,699. Hand-stamps. BEZZANT, C., 52, Panton Road, Chester. Aug. 1, 1931, No. 22016. [Class 100 (ii).] Holders for loose types.-In a hand-stamp of the kind comprising a box-shaped receptacle containing types held by means of thumbscrews or other suitable devices bearing against spacing-plates, one wall of the receptacle has an internal recess transverse to the lines of type, and a slot is provided leading from the recess to the open end of the box whereby spacing-plates provided with lugs can be inserted down the slot and then moved along the recess and retained therein. As shown, each one of a number of plates 7 is provided with a rib 10 engaging grooves in types 12 set up in rows in a box 2 fixed to a handle 15, and the assemblage, including packing-plates 13, is clamped in position by screws 14. Each of the plates 7 and 13 has a lug at each end engaging horizontal slots 3, 4 respectively, formed in the sides of the box, vertical slots 5, 6 being provided to permit the plates to be inserted. The box 2 may be pressed up from plastic material, and the screws 14 may be replaced by springs.
Patent GB-481869-A (GB)
Title: Improvements in or relating to shock absorbers
IPC: F16F9/348
Filed: 1936-08-11
Abstract: 481,869. Hydraulic shock - absorbers. JACKSON, L. MELLERSH-. (Monroe Auto Equipment Co.) Aug. 11, 1936, No. 22155. [Class 108 (iii)] In a hydraulic shock-absorber of the piston- and-cylinder type, particularly for vehicles, in which valve means regulate the flow of liquid in both directions through the piston, a disc valve 28, Fig. 3, is secured at its centre on the piston 17, its peripheral portion being capable of flexing away from the piston, to control the flow in one direction through ports therein, against the action of a resilient member 30 centrally secured on the piston above the disc. The shock-absorber shown in Fig. 2 comprises outer telescopic concentric cylinders A, B, 14 and an inner piston and cylinder pressure device, the space 15 between the two parts forming a reservoir. On compression of the shock-absorber liquid is forced upwardly through passages 24, Fig. 3, in the piston into a recess 26 and past the valve 28, and liquid is also forced past a valve assembly 42 as described in Specification 481,935 to the reservoir 15 through a passage 41. On rebound of the vehicle the flow of fluid downwardly through apertures 25 in the piston is restricted by a laminated spring valve 36, Fig. 3, which is stiffer than the valve'28, and fluid is drawn into the cylinder through the passage 41, and valve assembly 42. The pressure characteristics of individual shock - absorbers may be varied by interposing washers 37, Fig. 3, of different thicknesses between the valve-support 31 and the piston-body 17, thus providing a permanent byepass 38. To dissociate the telescoping parts of the shock-absorber, a threaded bushing 21 closing the upper end of the cylinder 13 is provided with one or more recesses 22 adapted to receive a dowel pin 23 extending downwardly from the upper part 11 of the shock - absorber when fully compressed, relative rotation of the telescoping parts then causing unscrewing of the bushing. In a modification annular blocks of resilient material are fixed on the upper outer periphery of cylinder B and inside the lower end of cylinder A to cushion abnormal rebound, and a pliable washer fixed by the lower block frictionally engages the cylinder B to act as sealing means for the two cylinders. Alternatively sealing may be effected by forming a lip on the lower block to engage frictionally the cylinder B.
Patent GB-584046-A (GB)
Title: Improvements in modulation circuits and application thereof to radio beacons
IPC: H03C1/00
Filed: 1944-11-10
Abstract: 584,046. Modulating systems. STANDARD TELEPHONES & CABLES, Ltd. Nov. 10, 1944, No. 22163. Convention date, Nov. 15, 1943. [Class 40 (v)] A modulating system for producing two output waves, one of carrier plus side-bands, and the other of side-bands only, comprises a carrier source 10 connected in push-pull to the grids of a pair of valves 11 and a signal source 12 connected to only one grid, the anodes being connected in push-pull to an output loop 13 in which carrier and side-bands appear, side-bands only being developed in circuit 16 connected between earth and a centre-tap on the loop circuit 13. The circuit 13 may be coupled to the centre aerial 15 of a radio beacon, the side aerials 17, 18 being coupled to the circuit 16 by feeders, one of which is arranged to provide phase reversal. A switch 19 alternately reverses the phase of excitation of the side aerials ;. or the keying switch may alternately connect the modulating source 12 to the grids of the valves 11. Voice signals from source 20 may be applied in parallel to the two grids to modulate the radiation from the centre aerial leaving the side aerials unaffected. Alternatively, the voice signals may be applied in push-pull to modulate the radiation from the side aerials. Balance in the valves 11 may be effected by separate bias adjustments for the grids ; and a differential condenser may be connected across the loop circuit 13 to adjust phase balance. The input circuit of the valve 11 and the two output circuits 13, 16 may be enclosed in shielding casings.
Patent GB-1525211-A (GB)
Title: Process for producing graft polymers
IPC: C08F255/00
Filed: 1977-05-25
Abstract: 1525211 Graft polymerization process DYNAMIT NOBEL AG 25 May 1977 [26 May 1976] 22173/77 Heading C3P A graft polymer is produced by grafting vinyl chloride on to an ethylene/vinyl acetate copolymer or ethylene/alkyl acrylate copolymer, the copolymer in powder form being reacted in the absence of oxygen, in the gel phase with vinyl chloride in the presence of first and second initiators which are soluble in vinyl chloride and have different decomposition temperatures. The initiators used in examples are dilauroyl peroxide and dicetyl percarbonate, other combinations being specified.
Patent GB-1468609-A (GB)
Title: Fuse circuits for projectiles
IPC: F42C17/04
Filed: 1974-05-20
Abstract: 1468609 Electric fuzes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 20 May 1974 [21 May 1973] 22419/74 Heading F3A [Also in Division H3] An electric projectile fuze which can be set automatically for one or more of at least three different functions, e.g. proximity fuze function and impact fuze function with instantaneous effect or delayed effect, comprises at least two fusible wires associated with ignition circuitry in the fuze in such a way that the fuze is set for the desired function(s) by selectively melting the wires. The proximity function may be provided by a Doppler device whose sensitivity is adjustable by melting further wires. The fusible wires communicate with a common contact at the surface of the fuze housing via polarity dependent elements, e.g., diodes, or voltage dependent impedance elements, e.g. Zener-diodes, whereby the wires are selectively fusible when the surface contact is engaged by the contact of a suitably set, switchable voltage generating device past which the projectiles are transported before the introduction into the breech of the firing weapon. The ignition circuitry comprises an igniter Í through which a capacitor C 1  discharges when a sufficient Doppler signal is applied to a control electrode G of a thyristor T 1 . The charging of the capacitor C 1  can be prevented, however, by melting a wire 13 to break the base to earth connection of a transistor T 2 . A capacitor C 2  for discharging through the igniter Í for an instantaneous burst upon impact, can be prevented from being charged by melting the wires 13 and 14, the latter wire serving to earth the base of a transistor T 3 . For delayed detonation upon impact, the wire 14 is melted but not the wire 13, whereby a capacitor C 3  can discharge through an igniter F.
Patent GB-1078671-A (GB)
Title: Improvements in centrifugal pumps
Inventor: MALLOCH ALEXANDER STIRLING
IPC: F04D9/00
Filed: 1964-05-29
Abstract: 1,078,671. Centrifugal pumps. WORTHING- TON-SIMPSON Ltd. Aug. 11, 1965 [May 29, 1964], No. 22441/64. Heading F1C. In order to maintain an immersible centrifugal pump primed when the liquid level in tank 14 falls below that of the or each inlet 8 of the or the first stage impeller casing 7, the latter is contained within a chamber 10, 12 in which the liquid level is kept above the inlet 8 by creating a reduced pressure in the chamber through a ball valve 16 and vacuum line 15. Liquid is discharged from the pump casing 7 through two diametrically opposite branches 9 and subsequent pump stages B, C to an outlet pipe which may be offset relative to the pump axis, Fig. 2 (not shown). Liquid enters the chamber 10, 12 at the bottom thereof, the lower section 12 having a serrated bottom edge supported above the bottom of the tank by feet 13. The upper and lower sections 10, 12 of the chamber are connected by a flexible bellows 11 which compensates for variations in floor shape of the tank and during maximum flow conditions contracts to bring the lower section 12 well clear of the tank bottom.
Patent GB-1042495-A (GB)
Title: Improvements in or relating to the damp-proofing of walls and similar structures
IPC: C04B41/45
Filed: 1963-06-06
Abstract: A structure is damp-proofed by injecting two co-precipitating agents into drilled holes at two spaced points.  A potential difference of 24 volts may be maintained between the two points. The agents may be injected in the form of solutions, emulsions, or solids.  The structure may be of brickwork, concrete, stonework, or timber. Coprecipitating cationic and anionic agents may be employed.  The cationic agent may be aluminium sulphate, n-dodecylamine acetate, n-dodecyl trimethyl ammonium chloride, or n-octadecyl trimethyl ammonium chloride.  The anionic agent may be potassium oleate, sodium n-dodecyl benzene sulphonate or the potassium salt of linseed or groundnut oil fatty acid.  A silicone or polyvinyl acetate may also be injected.
Patent GB-367723-A (GB)
Title: Means and method for packing flowers
IPC: B65B25/02
Filed: 1931-08-10
Abstract: 367,723. Packing flowers. ROY, W. 0., 1207, Drummond Street, Montreal, Canada. Aug. 10, 1931, No. 22533. [Class 94 (i).] A device for packing flowers comprises a length of open mesh wire netting, to which strips 2 .. 6 of wood are attached at intervals. A resilient packing material 8 such as hay or moss is disposed centrally of the wire, and the flowers 9 are placed therein pointing in both directions and with their stems overlapping. More packing and flowers may be added and the whole is rolled up and secured by a binding wire. The strips extend beyond the wire netting and the extremities of the parcel may be protected by paper wrappings. The strips 3 .. 6 are so spaced as to be equidistant on the outer wall of the parcel. The strip 2 may be replaced by a perforated tube to assist ventilation.