baber/WOPTO huggingface dataset:
Patent GB-1039702-A (GB)
Title: Contacting gases and liquids
IPC: B01F5/04
Filed: 1965-01-18
Abstract: <PICT:1039702/C6-C7/1> Apparatus for treating sugar syrup with sulphur dioxide gas comprises a conduit 34, 10 for the continuously flowing syrup having a constriction 24 for generating turbulence, the gas being injected into the turbulence zone through radial orifices 32 which communicate with an annular manifold 26 and a gas supply pipe 30. Downstream of the turbulence zone there is a sleeve 40 with apertures 50 and deflector 48 whereby the sulphited syrup is recycled as shown by the arrows R.
Patent GB-609299-A (GB)
Title: Manufacture of disazo-dyestuffs
IPC: C09B41/00
Filed: 1942-02-18
Abstract: Disazo dyes are obtained by coupling tetrazotized 3 : 31 - dihydroxy - 4 : 41 - diaminodiphenyl with 2 mols. of the same or different coupling components, of which at least one is a dihydroxy naphthalene, which may be further substituted except by a sulphonic acid group or groups.  The coupling is preferably effected in a medium made alkaline with an alkali metal, alkaline earth metal or ammonium hydroxide.  The products are suitable for dyeing or printing cotton, regenerated cellulose, wool or silk fibres or leather and are convertible in substance, in the p  dyebath, or on the fibre into complex metal compounds containing, for example, copper, chromium, iron, nickel or cobalt.  The metal compounds produced in substance may be incorporated in nitrocellulose lacquers, artificial resins and spinning masses. An example relates to the production of the dyestuff, 3 : 31-dihydroxy-4 : 41-diaminodiphenyl \sQ 2 : 6-dihydroxynaphthalene (2 mols.), which gives fast navy blue after-coppered dyeings on cotton; the corresponding dyeings when the coupling component is replaced by 1 : 5- and 2 : 7-dihydroxynaphthalenes are grey to black and reddish navy blue respectively.  An example of the production of an after-coppered dyeing on cotton is also given.  Specifications 12932/15, 102,881, [both in Class 2 (iii)], 455,274 and 609,301 are referred to.
Patent GB-813694-A (GB)
Title: Improvements in or relating to trenching machines
IPC: E02F3/28
Filed: 1956-01-23
Abstract: 813,694. Shovelling machines. HOWLETT, C. W. April 18, 1957 [Jan. 23, 1956], No. 2164/56. Class 68(1) Secured to and transversely of lift links of a power operated lift linkage of a tractor or of a tractor-drawn trailer is a telescopic boom 12, 49. To one end of the boom is rigidly secured a bracket 13 that supports through a universal joint 14, 20 a second telescopic boom 21, 22 on the end of which is pivotally mounted a scoop 26. Hydraulically-actuated rams 30, 15, 23, 32 control extension and contraction of the booms, slewing of the second boom about vertical and horizontal axes, and pivoting of the bucket relative to the boom. A counter-balancing mass 48 is secured to the other end of the first boom. Specification 747,554 is referred to.
Patent GB-864590-A (GB)
Title: Improvements relating to the manufacture of buttons having eyed shanks
Inventor: CHRISTIE DAVID
IPC: A44B1/24
Filed: 1959-01-21
Abstract: 864,590. Buttons. AUTOMATIC FEED MACHINES CO. Ltd. Jan. 20, 1960 [Jan. 21, 1959], No. 2177/59. Class 43 [Also in Group XXII]. A machine for providing buttons 17 with eyed shanks comprises a die 4 for forming an eye on the shank and automatic means for inserting a shank through a button and thence forcing the shank axially into the die so that an eye is formed on the shank after it has been inserted through the button, the die being divided into two complementary posts 4a, 4b which are separable to open the die to enable the shank to leave or be removed from the die when the eye is formed. Rings 2 and 3 mounted to rotate with an intermittently driven shaft 1 have each a recess for fixedly securing the die part 4a and for slidably supporting the die past 4b. A punch 11 automatically fed with wire shanks descends to insert a shank from between jaws 12 into the button aperture, the jaws open as the punch descends to drive the shank into an eye shaped passage 7 in the dieparts. A stationary part 15 presses against a tail portion 16 on the die part 4b to hold the die parts together. The shaft automatically rotates to bring the next one of a series of dies under the punch. The parts of the die separate under the action of a cam 14 between the rings to allow the removal of the shank from the die. The die parts may be supported by a single rotary part.
Patent GB-177300-A (GB)
Title: Improved means for resiliently-supporting the saddle of a motor or other cycle
IPC: B62J1/06
Filed: 1921-01-15
Abstract: 177,300. Corner, J. M. Jan. 15, 1921. Spring devices.-Relates to saddle supports of the type in which the saddle k is mounted on a bar a, pivoted at b to the top bar d of the cycle frame, and connected at its rear end to a guided and spring-controlled spindle h. According to the invention, the spindle h passes through two separated guides n, q, which serve as fixed points for the main and rebound springs r, t and has a pin g working in a slot in the extension f of the bar a by which means the spindle h always moves parallel with the down-tube j.
Patent GB-194481-A (GB)
Title: Improvements in complete combustion apparatus for marine boilers
IPC: F23M9/00
Filed: 1922-01-25
Abstract: 194,481. Sato, T. Jan. 25, 1922. Fire-bridges. - An arched fire-bridge 5 for steam-boilers is provided with a flame passage of uniform section for the greater part of its length, while the rear end 6 is cone-shape and terminates in a sharp edge. A damper 11, open at the top and rear, controls the admission of air from the ash-pit to passages 9 in the side walls of the bridge, which passages deliver air into the flame, passage through openings 10 arranged a little higher than the centre of the flame passage.
Patent GB-811932-A (GB)
Title: Improvements in electrical connectors
IPC: H01R4/20
Filed: 1955-01-25
Abstract: 811,932. Wire terminals. MARX, E. April 25, 1956 [Jan. 25, 1955], No. 2230/55. Class 38 (1). The crimp securing the ferrule of a terminal to a conductor 10 comprises four indentations 2 arranged in a square separated by two ridges at right angles. The ferrule may be enclosed by a metal or insulating sleeve (Figs. 3 and 4, not shown).
Patent GB-657259-A (GB)
Title: Improvements in and relating to vermin traps
IPC: A01M23/30
Filed: 1949-01-27
Abstract: 657,259. Vermin-traps. DANDRIDGE, G. F. J. Jan. 27, 1949, No. 2244. [Class 5(i)] In a throw-over trap the striker 21 is held by a pivoted catch 33 which is connected to a lever arm 17 running along or below the base-board to a plate 31; on this the animal steps to reach the bait on a holder 40 standing up from the base through a gap in the plate. A light spring 36 on the pivot spindle 37 tends to lift the plate 31 and tilt the catch into " set " position, so that the striker 21 after riding over the curved surface 38 automatically engages beneath the tooth 35.
Patent GB-1282068-A (GB)
Title: Electrical connectors
Inventor: BRUNER PETER MARTIN
IPC: H01R11/28
Filed: 1971-01-18
Abstract: 1282068 Terminals AMP Inc 18 Jan 1971 [19 Feb 1970] 2330/71 Heading H2E A connector 1 has a ferrule part 2 for crimping to a battery lead wire and a tab part having a frusto-conical shank portion 6 rendered resilient by the provision of slots 8, shank portion 6 fitting over the tapered terminal post (18) (Fig. 1, not shown) of a battery and being pressed into contact with the post by screwing on cap 12 until it abuts the flat portion of the tab. The shank portion may have protuberances on its inside surface for scoring the terminal post. Connector 1 may be lead, silver or an alloy of these. The cap may have gripping ears or grooves (Fig. 4, not shown).
Patent GB-743201-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28D1/03
Filed: 1953-01-28
Abstract: 743,201. Heat-exchangers. HELMORE, W. Feb. 26, 1954 [Jan. 28, 1953], No. 2422/53. Class 64(3). Relates to heat-exchangers having two sets of flat-sided passages the passages of one set being interposed between and extending transversely of the passages of the other set, each of said passages containing a corrugated spacer. According to the invention, the spacers are so disposed that, for each passage of one set, the ends of the channels formed by the spacer corrugations are directed towards the open ends of the passage and for each passage of the other set, the ends of the channels formed by the spacer corrugations are directed towards the closed sides or edges of the passage, these latter spacers being so formed that cross passages communicating with the open ends of these passages are provided at opposite ends of said channels, the cross-sectional area of each of these cross passages varying along its length such as to equalize the flow through each of the channels associated therewith. In the form shown, flatwalled water tubes 12 are spaced apart by corrugated spacers 17, Fig. 4, which extend to the ends of the passages formed between adjacent tubes and form air channels. Within each tube is a corrugated spacer 14 the corrugations of which extend across the tube width and the edges of which terminate at a varying distance from the rounded inner edge of the tube to form the cross passages 15, Fig. 6. Alternatively, the cross passages may be constituted by slots 16, Fig. 2. The tubes are connected between headers which may be shaped (e.g. as in Fig. 6) to equalise the flow of water through each tube. Other spacers may be disposed in the crosspassages 15. The passage walls may be straight (as shown) or slightly curved.
Patent GB-1337503-A (GB)
Title: Process for the preparation of beta-formylaminopropionic acid esters
IPC: C07C/
Filed: 1971-01-19
Abstract: 1337503 # - Formylaminopropionic acid esters BAYER AG 19 Jan 1971 [3 Feb 1970] 2475/71 Heading C2C Compounds of the formula in which R is an esterifying radical are prepared by reacting HCONH 2  with CH 2 =CHCOOR in a molar ratio of from 10 : 1 to 1 : 10 at normal pressure in the presence of 0À005-10À0 moles of a basic catalyst per mole of ester and 0À01- 3À0% by weight of a polymerization inhibitor at a temperature of from 0‹ C. to the reflux temperature. Compounds as above in which R is C 3-12  alkyl are claimed as novel. Polar solvents may be used for the reaction, and R may be alkyl, cyclohexyl, phenyl or benzyl.
Patent GB-1112751-A (GB)
Title: Web tensioning method and apparatus
IPC: D21F1/36
Filed: 1966-01-19
Abstract: 1,112,751. Feeding webs. P. NASH. 19 Jan., 1966 [22 Jan., 1965], No. 2482/66. Heading B6B. A device 1 for causing a moving web of material to be evenly tensioned across its width comprises a flexible shoe 31 over which the web passes and which extends beyond the web at both edges, the shoe being flexibly pressed towards the web. The even tensioning prevents flutter of the web which may cause faulty winding up of the web or erroneous operation of a web-inspection apparatus to which the web is being fed. As shown, a housing 15 is divided lengthwise into compartments 19 each of which contains an inflatable member 25. A flexible nylon sheet 30 passes around the bottom and sides of each member 25. The shoe 31 which is made of a material which flexes readily e.g. sheet phosphor bronze, beryllium &c., extends the full length of the housing 15 and has flanged parts 35 engaging side strips 22 on the housing. The flanges 35 are slotted (Fig. 5). The pressure in the members 25 is adjusted to give the required tensioning e.g. if the tension in the marginal portions of the web is less than that in the centre portions, the pressure in the outer members 25 is made greater than that in the centre members. The variation of the pressures may be effected under the control of flutter-detecting devices. A modified form of shoe (41, Figs. 6, 7) may be used in place of or in addition to the shoe 31. Further, mechanically-adjustable foam rubber or plastic pads may be used to apply resilient pressure to the shoe.
Patent GB-698125-A (GB)
Title: Method and apparatus for forming helical generated shapes
IPC: B23F5/20
Filed: 1951-02-01
Abstract: 698,125. Milling; turning. WHITFIELD, J. E. Feb. 1, 1951 [Feb. 9, 1950], No. 2512/51. Class 83 (iii). [Also in Group XXVI] The intermeshing rotors 44, 45 of a screwtype compressor are formed by a tool 36 having cutting points corresponding to the crest edges 47, 48 of a rotor tooth complementary to the one to be generated, the blank 44, Fig. 1, and tool 36 being mounted on spaced parallel shafts 40, 31 geared together by helical pinions 35, 43 to rotate at different speeds so as to impart to the tool a cutting action on the blank, and being relatively displaced axially to provide feed and generate the helical shape. The tool shaft 31 is carried on a support 29 clamped to ways on the bed 21 and is rotated by a headstock 22, and the blank-carrying shaft 40 is carried by a support 37 secured to a table 24 traversed in the direction of the shaft axis. The tool 36 for cutting the troughs 46, Figs. 8 and 9, of the gate rotor 44 has two pairs of tool bits 49, 50 in a holder 202, Fig. 6, secured to a hub 200 on the tool shaft 31, the cutting points being at a greater radial distance than the corresponding crest edges 47, 48 of the main rotor 45, so that a clearance is provided in the trough, and also being displaced circumferentially so that the clearance is a minimum at the bottom of the trough and increases towards the crest. Fig. 8 shows the tool bit 50 beginning the cut from the crest to the bottom of the trough and Fig. 9 shows the tool bit 49 beginning the cut on the other side of the trough. Additional tool bits may be disposed between the bits 49, 50. To adjust the relation between the tool 36 and the blank, the holder 202 is angularly adjustable on the hub 200 by screws 207, 208 engaging a pin 204 on the hub. The tool 131, Fig. 19, for cutting the main rotors 45 has four pairs of cutting bits 132, each with two cutting points 133, and they will flake off the metal on the hub portion 136 as they roll over it but it is preferable to machine this portion previously. Modifications are also described in which an additional fixed tool turns the outer circumference 18 of the gate rotor 44, in which a single tool 36 operates alternately on a pair of blanks on separate shafts and in which roughing and finishing tools are mounted on separate shafts, one tool performing a roughing cut in one trough while the other comes into position for beginning the finishing cut in the opposite trough. In a further modification for forming a gate rotor and main rotor simultaneously, the tool shaft 31 shown in Fig. 1 as carrying the gate rotor blank is extended to carry also a main rotor blank operated upon by a tool 131 carried on an extension of the other shaft 40. Specification 558,740, [Group XXVI], is referred to.
Patent GB-407509-A (GB)
Title: Improvements in the manufacture of cellulose esters
IPC: C08B1/02
Filed: 1933-01-26
Abstract: Cellulose acetates and other organic esters of cellulose are prepared from celluloses of low viscosity, namely, a cuprammonium p viscosity of 90--100 centipoises, obtained by subjecting celluloses of relatively high viscosity to the action of acid media or neutral oxidizing agents. By the use of such celluloses, cheaper and more plentiful cellulosic materials such as wood pulps and low grade cotton linters, become available for esterification; there are obtained cellulose esters of greater uniformity and improved solubility, and their solutions are of greater clarity; the esterification may be carried out at lower temperatures, with smaller proportions of catalyst and of acetic acid etc.; and the solutions of the cellulose esters spin more easily with fewer broken filaments. Esterification may be carried out in solution or in suspension; the catalyst used may be sulphuric acid, sulphuryl chloride or other sulphur containing catalyst, or zinc chloride or other metal halides with or without halogen acids, for example, as described in Specifications 308,322, 308,323, 309,201, 312,095, 312,096, and 312,098, [all in Class 2 (ii)], and the cellulose ester produced may be subjected to ripening until a desired solubility is developed. For effecting the desired reduction in viscosity of the cellulose, the following acid media and oxidizing agents are instanced: acetic acid solutions of sulphuric acid and sulphuryl chloride, aqueous solutions of mineral acids, and solutions of bleaching powder and hydrogen peroxide. The low viscosity cellulose may be treated for the removal of soda-soluble constituents before use. Before the actual esterification, the cellulose may be pretreated with formic, acetic &c. acid in liquid or vapour form as described in Specifications 263,938 and 312,098, [both in Class 2 (ii)]. In examples, cotton linters for conversion to cellulose acetate are subjected to a pretreatment for the purpose of lowering their viscosity with boiling 0.5 per cent sulphuric acid or centinormal hydrochloric acid, or with a mixture of sulphuryl chloride and acetic acid, or with the vapours of hydrogen peroxide.
Patent GB-1129622-A (GB)
Title: Process for the manufacture of ªß-pinene
IPC: C07C5/25
Filed: 1966-01-20
Abstract: 1,129,622. #-Pinene. FARBWERKE HOECHST A.G. 20 Jan., 1966 [10 Sept., 1965], No. 2668/66. Heading C5E. #-Pinene is prepared by isomerizing α- pinene in the vapour phase at 140-200‹ C. in the absence of oxygen, in the presence as 1-5 vol. per cent (based on the pinene volume) of hydrogen, and over a palladium/carbon catalyst. The hydrogen serves to regenerate the catalyst and act as a carrier gas. The residence time is suitably 0À1-20 seconds. The feed is suitably a pinene-containing turpentine oil or terpene mixture, or a technical grade α-pinene. The product, after separation from the catalyst, is passed continuously to a distillation column where #-pinene concentrates and α-pinene is taken off overhead and recycled. The distillation is continued until the #-pinene content has reached the desired level, at which point further distillation will yield pure #-pinene and unconverted α-pinene which can be rearranged to camphene with titanic acid.
Patent GB-327488-A (GB)
Title: Improvements in and relating to the production of ammonium sulphate
IPC: C01C1/244
Filed: 1929-01-25
Abstract: 327,488. Piette, O. Jan. 25, 1929. Ammonium sulphate. - Relates to the process for preparing ammonium sulphate from calcium sulphate, ammonia and carbon dioxide in which a circulating current of a cold, nearly saturated solution of ammonium sulphate is treated with ammonia to precipitate solid ammonium sulphate, and the mother liquor after being heated to drive off the ammonia for reuse is treated with gases containing ammonia and carbon dioxide to form ammonium carbonate and is then treated with calcium sulphate to enrich the solution with ammonium sulphate. If pure carbon dioxide is used to treat the mother liquor, sufficient ammonia may be left therein to form the required amount of ammonium carbonate and a separate addition of ammonia is unnecessary. The solution of ammonium sulphate is treated in an absorption vessel 22 with ammonia admitted through an inlet 23. Solid ammonium sulphate collects in the vessel 24. The mother liquor passes through a heat exchanger 26, a still 27, a cooler 30 to a column 2 in which it is treated with carbon dioxide. The treated liquor is mixed with calcium sulphate in a mixer 7, precipitated calcium carbonate is separated in a filter 8, and the solution is passed through a beat-exchanger 9, a column still 10 and evaporator 19, and is then returned by a pipe 32 to the absorption vessel 22. Ammonia driven off from the still 10, 27 is returned to the vessel 22. The. amount of ammonia remaining in the solution leaving the still 27 is adjusted by regulating either the heating of the still or the temperature of the reflux condenser 29.
Patent GB-113487-A (GB)
Title: Improvements in Attached Road Scarifiers.
Inventor: PRICE CHARLES
IPC: E01C23/12
Filed: 1917-02-24
Abstract: 113,487. Price, C., and Price, F. C. Feb. 24, 1917. Scarifiers.-Relates to scarifiers attached to road locomotives, and consists in combining two known features of construction viz. (1) a toolholder in the form of an arched casting slidable upon rods against the action of springs in guides in the scarifier frame, and (2) a tool-holder suspended from a cross-head connected to the lifting and controlling mechanism by links or the like with springs between the tool-holder and the cross-head to absorb excessive vibration. In the form shown in Fig. 1, the tool-holder i is resiliently connected by springs j and rubber plate i<1> with a casting b so as to be vertically adjustable in fixed guides a by a rack and pinion c, d operated through a worm gear f, e from a handwheel h. This adjustment, which is facilitated by springs m, is for the purpose of varying the depth of cut. To absorb shocks during the operation of the scarifier on the road, the tool-holder can rise with respect to the casting b by compressing the springs j, the return to normal position being controlled by links n. Fig. 3 shows a modification in which the tool-holder is connected with a screw-actuated casting b by a laminated spring g, the ends of which bear upon steel washers g<1> and rubber blocks g<2>. In this construction. the links n, Fig. 1, are replaced by a stirrup o and, in a third modification, by wire ropes.
Patent GB-555264-A (GB)
Title: Improvements in or relating to automatic guns
IPC: F41A15/16
Filed: 1941-03-03
Abstract: 555,264. Automatic guns. VICKERS-ARMSTRONGS, Ltd., and HIGSON, P. R. March 3, 1941, No. 2863. [Class 92 (ii)] Relates to ejector mechanism for automatic guns of the long-recoil type and consists in providing an ejector-lever 4 pivoted at 2 to the barrel-extension 3 and engaging by its member 10 during run-out of the barrel with a cam surface 5 on a pawl-like lateral arm pivoted at 12 to the gun casing 6. The arm has a surface 14 whereby the member 10 moves the arm aside against the action of a spring so that it is inactive during recoil.
Patent GB-245053-A (GB)
Title: Improvements in aircraft capable of vertical and horizontal flight
IPC: B64C27/16
Filed: 1925-02-02
Abstract: 245,053. Chillingworth, R. Dec. 24, 1924, [Convention date]. Screw propellers.-The blades of the lifting propellers d of a helicopter are mounted on hollow stems m rotatable in extensions h of the bosses, and a motor g in the root of one blade of each propeller drives a shaft n geared to the shaft r of a propeller e which drives the blade. Alternatively, the motors may be placed on the framework of the machine. When the propellers d are stopped the blades are turned in their bosses to act as planes.
Patent GB-1516485-A (GB)
Title: Vertical electrolytic cell
IPC: C25B1/36
Filed: 1977-01-25
Abstract: 1516485 Vertical Hg-cathode cell COMMISSARIAT A L'ENERGIE ATOMIQUE 25 Jan 1977 [30 Jan 1976] 02967/77 Heading C7B The vertical Hg cathode of the cell comprises at least one continuous thread of Hg flowing down by gravity from an aperture in the bottom wall of at least one channel. Preferably the threads do not exceed 5 mm diameter and 15 cm length. The cell may comprise a diaphragm (ion-exchange or liquid permeable) and a plurality of anode/cathode compartments may be arranged alternately in a "filter-press" arrangement. In this case the channel(s) may be supported on a graphite block which separates adjacent compartments and acts as anode on one side and as a secondary cathode on the other. Several channels may be provided, vertically separated. An alternative structure comprises a concentric assembly around a cathode core; a plurality of such assemblies may be immersed in a common anolyte tank. The channels may be insulating or conductive. In a multi-compartment cell each Hg cathode is circulated separately. Catholyte and cathode may circulate in countercurrent. The anodes and channel supports may be internally cooled. Reduction of U VI or U IV to U III (chloride) and production of Li amalgam are specified uses.