baber/WOPTO huggingface dataset:
Patent GB-926313-A (GB)
Title: Hardening photographic silver halide materials
Inventor: HORTON VINCENT STANLEY
IPC: G03C1/30
Filed: 1958-07-21
Abstract: Gelatin layers are hardened by incorporating therein a reaction product of at least 2 mols. of glyoxal or an alkyl substituted glyoxal and 1 mol. of a compound containing an -OH group separated by a chain of at least two carbon atoms from either another -OH group or an -NH2 or -NH- group. Hardening agents specified are the reaction products of 2 mols. of glyoxal with 1 mol. of ethylene glycol, propylene glycol, diethylene glycol, polyethylene glycol, thiodiglycol, but-2-yn-1:4-diol or propan-1:3-diol, the reaction products of 3 mols. of glyoxal with 1 mol. of ethanolamine, diethanolamine or triethanolamine, and the compound tetra(formylhydroxymethoxy)-neopentane. a :o -Diformyl(1:9-dihydroxy-2:5:8-trioxanonane) is obtained by mixing 1 mole of diethylene glycol and 2 moles of glyoxal (as an aqueous solution) and placing in a vacuum desiccator containing phosphorus pentoxide for several days.  Similar products are obtained by using ethylene glycol, propylene glycol, thiodiglycol, but-2-yn-1:4-diol, propan 1:3-diol or a polyethylene glycol instead of diethylene glycol.  Ethanolamine-glyoxal adducts are similarly prepared from 3 moles of glyoxal and 1 mole of mono-, di- or tri-ethanolamine.  Tetra (formylhydroxymethyl)-neopentane is similarly prepared from 4 moles of glyoxal and 1 mole of pentaerythritol.
Patent GB-925765-A (GB)
Title: Basic dyes of the quinophthalone series
IPC: C09B25/00
Filed: 1961-06-28
Abstract: Acid halides of the formula:-  <FORM:0925765/IV(a)/1> where X is hydrogen, chlorine, bromine, methyl or phenyl, Y is hydrogen, chlorine, bromine and methyl or X and Y jointly represent a fused benzene ring, and "hal" represents chlorine or bromine are made by treating with thionyl chloride or bromide the corresponding acid which is obtained by condensing a compound of the formula:- <FORM:0925765/IV(a)/2> with trimellitic acid or its anhydride.  In examples, acids are made wherein X and Y are (12) both hydrogen, (13) both chlorine, (14) both bromine, (15) benzo and (16) chlorine and methyl, chlorine and hydrogen, and phenyl and hydrogen.  In a further example (17) the acid halides are prepared.ALSO:The invention comprises dyes of the formula:-where X is hydrogen, chlorine, bromine, methyl of phenyl and Y is hydrogen, chlorine, bromine or methyl or X and Y jointly represent a fused benzene ring, n is 2, 3 or 4, Q is oxygen or -NH- or -N(alkyl)-, Z is the radical of a dialkylamine, monoalkyl monohydroxyalkylamine, dihydroxyalkylamine, monoalkyl benzylamine, monohydroxyalkyl benzylamine, morpholine, piperidine or pyrrolidine, the alkyl radicals having from 1 to 4 carbon atoms, and the salts and quaternary ammonium compounds thereof.  The dyes are made by condensing an acid halide of the formula:- <FORM:0925765/IV(a)/1> where "hal" is chlorine or bromine, with a compound of the formula:-HQ-(CH2)n-Z and converting the product into the free base or into a different salt or into a quaternary ammonium compound.  The dyes in the salt or quaternary ammonium form dye acidmodified acrylic or polyester fibres from an acid bath and in the free base form are disperse dyes for hydrophobic fibres.  Yellow shades are obtained.  Specifications 765,585 and 826,248 are referred to.
Patent GB-155901-A (GB)
Title: Improvements in and connected with fire-lighters
IPC: C10L11/04
Filed: 1919-09-23
Abstract: 155,901. Ferguson, W. Sept. 23, 1919. No Patent granted (Sealing fee not paid). Moulding firelighters.-In the manufacture of firelighters composed of sawdust or chips impregnated with napthalene or other inflammable material the sawdust or chips are compressed in a mould fitted with a removable perforated liner, then the liner is removed from the mould and immersed together with the moulded material in the naphthalene, petroleum or the like. The firelighter A, Fig. 3, may have apertures 1 communicating with a channel 2. A suitable form of liner B is shown in Fig. 4 and is of channel form with an inwardly projecting upwards from the base of the liner. The liner is fitted within a correspondingly shaped mould C, Fig. 7, provided with cores 2b for forming the apertures 1, Fig. 3. Sawdust. &c., is packed into the mould and compressed by means of a die C', forced down by a pivoted lever D.
Patent GB-1507128-A (GB)
Title: Subterranean bed containing induced fractures and a method for selectively forming or orienting induced fractures therein
IPC: E21B43/26
Filed: 1976-06-07
Abstract: 1507128 Fracturing subterranean formations UNITED STATES ENERGY RESEARCH & DEVELOPMENT ADMINISTRATION 7 June 1976 [1 July 1975] 23405/76 Heading E1F A method of fracturing a subterranean formation comprises injecting a fluid into a previously induced fracture, projecting from a wellbore along a plane parallel to the plane of maximum tectonic compressive stress, for inducing compressive stresses in a horizontal plane disposed substantially orthogonally to the plane of maximum compressive stress; continuing the fluid injection until the induced compressive stress, in an area of the formation contiguous to the previously induced fracture, is greater than the maximum tectonic compressive stress so as to negate the latter in the area while stressing the formation in a plane disposed substantially orthogonally to the plane of maximum compressive stress; and, while maintaining the induced compressive stress, injecting fluid into a second wellbore in the area at a location laterally displaced from the previously induced fracture for effecting a fracture along a plane disposed substantially orthogonally to the previously induced fracture. The injected fluid pressures in the wellbores may be selectively reduced and increased so as to form a fracture system that is extensively furcated. The second wellbore may be positioned at a location laterally spaced from one of the ends of the previously induced fracture so that a pressure induced fracture in the second wellbore can be formed which orthogonally intersects the plane of maximum permeability if the latter is not sufficiently parallel to the tectonic stress field.
Patent GB-1029006-A (GB)
Title: Novel composition for the acceleration of copolymerisation of polyesters
IPC: C08F283/01
Filed: 1964-06-05
Abstract: Unsaturated polyesters are copolymerized using a peroxidic initiator and as an accelerator a stable solution of ascorbic acid and/or isoascorbic acid dissolved in a trialkyl phosphate or phosphite, the alkyl groups containing 1 to 4 carbon atoms.  In the examples a styrene-based unsaturated polyester is cured using methyl ethyl ketone peroxide or benzoyl peroxide and ascorbic acid or isoascorbic acid dissolved in triethyl phosphite.  A cobalt accelerator or dimethyl aniline may also be present.
Patent GB-636362-A (GB)
Title: Improvements in or relating to electrical measuring instruments and relays
IPC: G01R1/10
Filed: 1947-08-25
Abstract: 636,362. Electromagnetic ammeters and voltmeters. SANGAMO WESTON, Ltd. Aug. 25, 1947, No. 23484. Convention date, Oct. 29, 1946. [Class 37] [Also in Groups XXXIV and XXXVII] A moving coil type measuring instrument or relay has a magnet with spaced poles and a stationary core in the gap between them, in which is mounted the moving system comprising a coil, co-operating bearing elements carried by the core and coil to support the coil for pivotal movement about the core, sets of co-operating spring abutments mounted on the core and coil, the spring abutments of the coil being located within the coil, and springs connected between the co-operating spring abutments of each of the sets. The permanent magnet 1 is housed within a casing consisting of a shallow insulating base 2 and cover-plates 3, 4. A 'soft iron cylindrical core 5 is supported in the interpolar gap of the magnet 1 by a non-magnetic bridge 6, which is clamped against the upper face of the magnet by screws 7. A depending tongue 8 of the bridge fits within a longitudinal slot in the inner face of the core 5 and is apertured to pass the screw 9 that clamps the core to the bridge. A passage extends axially through the core, the ends being enlarged and threaded. The ends of the core are countersunk with annular recesses 11 and the threaded portions 12 are cut back from the end faces of the core. A plug 13 carrying a jewel 14 is screwed into the upper end of the core. A bushing 15 is screwed into the lower end of the core and has a bore in which slides a piston 17 carrying a lower jewel bearing 16. The piston 17 has a conical head 18 and is surrounded by a coiled spring 19. An adjusting screw 20 engages the conical head 18 to force the piston outwardly. The moving system includes a coil 21 wound on a rectangular frame 22 into which are threaded bushings 23 carrying pivot pins 24. The pivot pins are seated in the jewels 14, 16, the lower jewel 16 being adjusted axially by means of the screw 20. The frame 22 carries a pointer 27 and inner spring abutments 28, 34 secured to the inner ends of coiled springs 30, 37. Outer spring abutments 31, 36 are mounted on the core 5 and attached to the outer ends of the springs 30, 37. The lower abutment 36 has a slotted extension 38 for receiving the eccentrically located pin of a zero adjuster 39.
Patent GB-215260-A (GB)
Title: Improvements in a lock nut
IPC: F16B39/10
Filed: 1923-09-20
Abstract: 215,260. Lubin, S. A., and Anishike, P. S. Sept. 20, 1923. Locking nuts.-A nut-lock of the type in which a spring- pressed pawl carried by the nut engages ratchet-teeth or radial recesses in a washer which is held against rotation by a lug which engages a longitudinal groove in the bolt, comprises a washer 7 which is accommodated in an annular recess in the bearing face of the nut 4, and is engaged by a spring-pressed pin 12 in the nut. The pin 12 may be provided with a lug 16 which fits in a recess 18 in the outer face of the nut when the device is locked, and rests upon that face in the unlocked position.
Patent GB-980578-A (GB)
Title: Improvements in and relating to velocipedes
IPC: B62K3/00
Filed: 1962-06-19
Abstract: 980,578. Cycle seat arrangements. R. WALLACE Sept. 19, 1963 [June 19, 1962], No. 23543/62. Heading B7E. An auxiliary seat 4 is positioned on the cycle so that the distance of its crutch part from the crank axis is the same as the distance of the crutch part of the main seat 2 from the crank axis. Specification 948,812 is referred to.
Patent GB-226289-A (GB)
Title: Improvements in dividing boxes for electric cables
IPC: H02G15/06
Filed: 1923-09-21
Abstract: 226,289. Bexon, W. C., and Upton, W. E. Sept. 21, 1923. Connection fittings; boxes and covers.-In means for connecting multi-core underground cables to overhead lines, a dividing box 2, Fig. 2, is arranged on an overhead line-supporting pole accessible from the ground, the underground cable 3 being led into the lower end of the box wherein its cores are connected to separate leadsheathed single-core cables 4 passing out through the top of the box and connected within sealing bells 6, Fig. 4, adjacent the top of the pole, to the overhead lines 8. The dividing box comprises a cast iron or like casing 2 having at its lower end a gland 9 through which the cable 3 passes, and, at its upper end, a detachable lid 10 provided with ferrules 12 through which the cables 4 pass and to which the lead sheathing 5 is sweated. The lid is also provided with an upstanding flange 14 forming a receptacle for sealing material and has a removable plug 16 to permit of the box being filled with compound. The bells 6 are also provided with a filling aperture closed by a plug 17.
Patent GB-1341271-A (GB)
Title: Coke ovens
IPC: C10B43/10
Filed: 1971-04-19
Abstract: 1341271 Coke ovens SIMON-CARVES Ltd 19 April 1971 [3 Nov 1970] 23705/71 Heading F4B In a rich gas fired twin flued regenerative coke oven, pipes 33 and 34 respectively feed low and high level burners in one group of heating flues, and pipes 35 and 36 respectively feed low and high level burners in the alternate group of heating flues. In operation, gas is fed through open cocks 28 via pipes 33 and 34 to the burners of the first flue group, whilst cocks 29 in the pipes 35. and 36 are closed to shut off gas flow to the alternate flue group. Pressurized decarbonizing air can be admitted to the pipes 35 and 36 at this time from line 37 through fourway cock 39. In a first position A of the cock 39 air is admitted only to pipe 36 to decarbonize it and its associated burners,in a second position B air is admitted only to pipe 35 for a like purpose, and in a third position C a throttled supply of venting air is admitted to both pipes to prevent flue gases from the " off" heating flues flowing back down them. Alternatively, in this third position the pipes 35 and 36 could be vented to atmosphere via a slot in the housing of the cock 39. A similar four way cock 38 prevents decarbonizing air passing to pipes 33 and 34 whilst gas is passing through them. On reversal, i.e. positions D, E and F, gas is fed through the pipes 35 and 36 and decarbonizing air via cock 38 to the pipes 33 and 34. The period during which decarbonizing air is fed to any given pipe is restricted to the minimum necessary to completely decarbonize that pipe and the associated burners. This may be longer for the high level burners than the low level burners.
Patent GB-920213-A (GB)
Title: Process for preparing cyanoethyl polyamides
IPC: C08G69/48
Filed: 1959-07-10
Abstract: Cyanoethylated polyamides are made by treating polyamides in solution or in suspension in the form of powder, granules, fibres or filaments with acrylonitrile with or without inert diluents at a temperature between 20 DEG  and 90 DEG C. in the presence of a basic catalyst such as an alkali metal hydroxide or a quaternary ammonium base. Specified polyamides are poly-S -caprolactam and polyhexamethylene adipamide.  Specified inert diluents are dioxan and benzene. Phenyl-b -naphthylamine may be present as an acrylonitrile polymerization inhibitor.  The examples describe the reaction of acrylonitrile with:- (1) and (3) poly-S -caprolactam in the presence of sodium hydroxide; (2) polyhexamethylene adipamide in the presence of sodium hydroxide; (4) and (5) poly-S -caprolactam in the presence of trimethylphenyl ammonium ethoxide and (6) poly-S -caprolactam in the presence of triethylphenyl ammonium ethoxide.
Patent GB-321940-A (GB)
Title: Improvements in or relating to linkwork movements
IPC: F16H21/32
Filed: 1928-08-20
Abstract: 321,940. Littlefield, C. Aug. 20, 1928. Wrapping - ma - chines.- Linkwork for imparting a reciprocating movement with a dwell to the transfer plunger by which articles are shifted from a conveyer to a wrapping machine, comprises a uniformly rotating crank 4 operating a rock shaft 5 through a link 9 sustained at its further end by a rock arm 14 on a fixed pivot 15, an arm 8 on the rock shaft 5 being coupled by a link 10 to the centre of the link 9. A second arm 6 on the shaft 5 transmits the motion through a link 7 to the plunger 1. The dwell occurs at that phase of the crank rotation during which the end 11 of the link 10 swings substantially in an arc having the other end 13 for a centre. Specification 3749/97, [Class 80, Mechanism &c.], is referred to.
Patent GB-1341629-A (GB)
Title: Hydraulic adjusting devices
IPC: F15B21/08
Filed: 1971-04-19
Abstract: 1341629 Transistor switching circuits; pulse modulation circuits ROBERT BOSCH GmbH 19 April 1971 [12 March 1970] 23960/71 Headings H3T and H4L [Also in Divisions G1 and F1] An hydraulic actuator acting against a load comprises a piston in a cylinder subjected to fluid pressure under the control of electricallyoperated valves (MV1, MV2, MV3). A signal representative of the desired position is compared with a signal representing actual position, giving an error signal which is utilized to control the valves. The error is fed in parallel to a "three state regulator" (Fig. 4) for coarse control effected by the valves MV1 and MV2, and also to a "square wave circuit" (Fig. 3) for fine control effected by valve MV3. In the three state regulator of Fig. 4 the error signal is fed at 36 to an operational amplifier 70 connected in a bridge circuit D71, D72, D73, D74 and having a load resistor 79. With no signal at 36 the output V a  is half the supply voltage Ub. With an input at 36 the bridge symmetry is disturbed and if the imbalance exceeds a given value (positive or negative) all feedback ceases and the output assumes the voltage of either + Ub or earth to operate either MV1 or M42. Between these values the output obtains ¢ Ub when neither operates. The square wave generator of Fig. 3 provides a square wave signal whose mark/space ratio varies with the error signal, the "mark" providing one position of the valve MV3 and the "space" the other; so that the actuator tends to hunt to its steady position. The actual and reference signals at terminals 30, 31 are fed through a difference circuit to a second input M of an operational amplifier 45 having an input P connected to the junction of a divider chain R46, R47. A feedback resistor 51 connects the output to the input P and a capacitor 65 connects input M to earth. With no error, the voltage at M is made equal to that that P would have if no resistor 51 were present. With this resister in circuit the output is driven either to +Ub or earth and a square wave obtains. Assume the output has just gone from "earth" to +Un to start the "mark" period. Capacitor 65 has been discharged to a value so that M is below P. This capactior charges via R50 and when the voltage exceeds that of P (which is set by the parallel-series combination of (R46+R51) and R47 across the supply) the operational amplifier acts to drive the output from +Ub to earth to start the "space" period. The length of "mark" and "space" depend on the size and sign of the error, and with no error the ratio is 1 : 1. The output is fed to a transistor amplifier T53, T54, T55, controlling the valve MV3.
Patent GB-425209-A (GB)
Title: Cast metal container and method for making the same
IPC: B22C9/24
Filed: 1934-08-20
Abstract: 425,209. Casting composite containers. SCHMELLER, J., 2325, Riverside Drive, Lakewood, Ohio, U.S.A. Aug. 20, 1934, No. 24026. Convention date, Aug. 19, 1933. [Class 83 (i)] Cores; moulding processes.-In making a metal container such as an aluminium barrel, the metal forming the wall is cast about the margins of a preformed closure head to form an integral structure therewith. One form of mould, Fig. 2, has separable metal sections hinged about a vertical bar 8 which is held by a bracket 6 secured to a base plate 2. The upper and lower parts of the mould meet off the centre line of the barrel so as not to interfere with the bung-hole core 48 ; molten metal is fed down the sinuous sprues 29 into the runner cavity 32 and then through the narrow broken gate openings 33, passageways 34 feed metal to form the barrel end and risers 28 lead away from this end. The preformed closure head 70, Figs. 5 and 7, having a beaded edge 71 for interlocking with the cast body portion, is first inserted in an inverted core-box half and properly positioned by a metal core-print 75 in the form of a spoked wheel, sand is then rammed through the spokes and the core box-half turned into the upright position shown. A boss in the core-print is screwed to take the end of an arbor 85 which is held central by a guide bar 92 while the core is being rammed with sand, finally the upper part of the core-box is placed in position, filled with sand and the upper end of the core shaped by an annular sweep 63 which rotates on rollers 66. The core may be lifted and placed in the mould by means of a handle 88 on the arbor, the latter then being removed and the space in the core filled with sand, the mould is completed when the bevelled bakedsand core-piece 26 is placed in position. A similar core may be used with a green sand mould, Fig. 10, the sprues are modified in this form and the narrowgate 131 may be continuous or broken ; the baked sand core 125 which forms the outside of the end-piece of the barrel may be held in position by vertical and horizontal wires 126, 127 respectively. Two preformed heads may be used and only the body portion of the barrel need be formed in the casting cavity.
Patent GB-1601868-A (GB)
Title: Tape for a programmer with photo-electric reading
IPC: G06K19/04
Filed: 1978-05-30
Abstract: The tape medium is provided with holes (3) and is able to allow accurate synchronism between the pulses leaving the photoreader and generated by two or more holes of the same row (r) of the tape. The tape medium comprises a plurality of identical rectangular holes (4) equally spaced by a specified distance along parallel longitudinal files (f) defining as many reading tracks, each hole being made in a position close to and slightly ahead in the longitudinal direction of the said tape, relative to a corresponding row with transverse trajectory. Hence even in the case in which these holes (3) are not perfectly aligned in the row, the pulses generated by it are all synchronous and of equal duration, since a moment before a row of holes passes in front of the photoelectric reader, one of the said rectangular holes (4) passes by and generates an electrical pulse used to enable the signals originating from all the remaining channels of the same row (r). <IMAGE>
Patent GB-279232-A (GB)
Title: Improvements in or relating to mechanically cast type-bars and means for producing same
IPC: B41B11/52
Filed: 1926-09-30
Abstract: 279,232. Linotype & Machinery, Ltd., Holbourns, J. G., and Bower, W. M. Sept. 30, 1926. Moulds for type-bar-making machines.-Typebars adapted for long measure work, and having at their ends mutually engaging surfaces, such as grooves 1 and tongues 2, Fig. 2, to maintain the lateral alignment of the bars, are cast in a mould, of which the liners 6, 7, Fig. 4, are suitably formed at their ends to produce the grooves and tongues.
Patent GB-296063-A (GB)
Title: Improved device for regulating the quantity and composition of a gas mixture
IPC: B01F23/10
Filed: 1928-08-23
Abstract: 296,063. I. G. Farbenindustrie Akt.- Ges., Aug. 24, 1927, [Convention date]. Mixing fluids in flow.-Apparatus for mixing, in regulatable proportions, gases such as anaesthetic gases, under constant pressure and for varying the quantity of the mixture supplied comprises a pair of needle valves N1, N2, controlling the flow of gases through pipes A1, B1 and A2, B2, and connected by links M1, M2 to spaced points P1, P2 on a block S, slidable, as by a screw and milled nut Q in a pivoted frame R. The angular position of the frame R, controlled by a handle H, determines the quantity of mixture supplied; the position of the block S relative to the pivot D determines the proportions of the gases in the mixture, the two adjustments being independent of one another. Either of the valves is closed if the corresponding connection PI of P2 thereof is coincident with the pivot D. The pipes B1, B2 communicate with a common pipe C connected for example to an inhaling mask. Stops may be provided for limiting the movement of the frame R.