baber/WOPTO huggingface dataset:
Patent GB-869505-A (GB)
Title: Process for the preparation of cyclic di-and tri-carboxylic acids
IPC: C07D213/803
Filed: 1959-03-06
Abstract: A process for the preparation of aromatic or aromatic-heterocyclic di- and tri-carboxylic acids or their alkali metal salts comprises reacting an aromatic hydrocarbon or heteroaryl compound free from carboxyl or other functional groups with alkali metal salts of aromatic or aromatic-heterocyclic carboxylic acids other than terephthalic acid (a) at a temperature of over 300 DEG C. under pressure, (b) in the absence of appreciable amounts of oxygen and water, (c) in the presence of substances which bind water or are capable of reacting with water, (d) in the presence of a protective gas (e) in the presence of cadmium, zinc, mercury or compounds thereof, and thereafter if desired, converting the alkali metal salts into the free acids.  The carboxylic reactant is preferably the potassium salt of a mono-, di- or poly-carboxylic acid of the benzene series (other than salts of terephthalic acid) or of other aromatic series such as naphthalene, diphenyl and pyridine.  The second reactant may be for example, benzene, naphthalene, diphenyl, pyridine, quinoline, isoquinoline, thiophene, thionaphthene or a ,a 1dipyridyl. The reaction may be carried out by heating in an atmosphere of carbon dioxide or nitrogen, preferably using cadmium fluoride as catalyst, and as water binding agent metal carbides, nitriles, borides or cyanates or elemental silicon or boron. Examples describe the preparation of terephthalic acid either alone or together with isocinchomeronic acid or pyridine di- and tri-carboxylic acids, and naphthalene 2,6-dicarboxylic acid. Specifications 828,028 and 847,246 are referred to.
Patent GB-185068-A (GB)
Title: Improvements in appliances for playing games of chance
IPC: A63F7/38
Filed: 1922-03-25
Abstract: 185,068. Keens, H. W. March 25,1922. Games of chance.-An appliance for playing a game of chance consists of a miniature boat containing a number of balls E of different colour, and provided at each end with a hole B. The game is played by spinning the boat, and observing the colours of the balls which lodge in the holes. Specification 11801/13 is referred to.
Patent GB-806368-A (GB)
Title: Improvements in and relating to the manufacture of paper seals
IPC: B31D1/02
Filed: 1957-03-08
Abstract: 806,368. Forming seals; making labels. EFKA WERKE F. KIEHN G.m.b.H. March 8, 1957 [March 9, 1956], No. 7816/57. Classes 73 and 146(2) Paper seals comprising a pair of complementary seal portions with a loop of thread or ribbon sandwiched in between are automatically produced by apparatus comprising a pair of cylindrical drums 1, 2, each of which picks up a seal portion from supply stacks 11, 12, and carries them to a seal forming station 13. The seal portions are picked up from the stacks 11, 12 and carried past gum moistening roller 27 by suction points 3, 4 connected by radial passages 5, 6 to hollow spindles 7, 8 through ports 9, 10. These are arranged to cut off the suction to the seal portion at station 13 on drum 1, but allow the joined seal to be held by drum 2 until the seal has past pressure roll 28. Spools 14 of thread are mounted below the drum 1, one for each seal position, and are controlled by grippers 18 operated by a cam 19 on the spindle 7. A further cam 24 operates levers 23 which raise and lower loop-forming hooks 20. The grippers 18 move outwardly at position II, their jaws close at position III, draw thread from spools 14 by position IV, hook 20 is in its lowest position at position V, and is raised so that the thread is formed into a loop by position VI. A peg 25 releases the loop of thread from the hook 20. In a modification, the drums 1 and 2 are mounted on horizontal spindles and the pulling out of the thread loops occurs on the upper part of the drum 1 whilst the finished paper seals drop away at the lowest point of the drum 1.
Patent GB-374928-A (GB)
Title: Manufacture of metalliferous sulphurised phenol derivatives
Filed: 1931-03-14
Abstract: Sodium chromimolybdate is obtained by boiling an aqueous solution of sodium molybdate with chromium sulphate.  Luteo-sodium arsenoso-tungstate is obtained by treating a hot aqueous solution of sodium tungstate with aqueous arsenic acid, neutralizing with caustic soda and crystallizing.ALSO:Metalliferous sulphurized non-dyeing derivatives of phenols are obtained by heating phenols other than those containing nitrogen, with sulphur in presence of alkali metal salts of acids containing in the acid residue one or two metals of the hydrogen sulphide, ammonia or ammonium sulphide groups; salts specified are stannates, sulphostannates, antimoniates, sulphoantimoniates, pyroantimoniates, aluminates, arsenites, arsenates, chromates, plumbites, vanadates, zincates, molybdates, luteo - sodium arsenoso - tungstate, sodium chromimolybdate, and double salts containing arsenic and antimony, arsenic and bismuth, &c.  Phenols specified are phenol, chlor-, sulpho-and carboxy-phenols, resorcinol, naphthols and their chlor-, sulpho and carboxy substitution products.  The products possess mordanting, tanning, preserving, and insecticidal properties.  According to examples phenol and sulphur are heated with sodium stannate, sulphantimoniate, and aluminate.  Sodium chromimolybdate is obtained by boiling an aqueous solution of sodium molybdate with chromium sulphate.  Luteo-sodium-arsenoso-tungstate is obtained by treating a hot aqueous solution of sodium tungstate with aqueous arsenic acid, neutralizing with sodium hydroxide and crystallizing.
Patent GB-253244-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02B75/02
Filed: 1925-03-24
Abstract: 253,244. Low, D. A. March 24, 1925. Balancing moving parts by weights.-In engines working on either the two or four stroke cycle and having two open-ended parallel cylinders each with two opposed pistons, the pistons at the same end of the cylinders being connected to the crank shaft through double-arm rock ing levers, the crank shaft carries opposite cranks and is at right-angles to the plane of the cylinders, while four rocking levers 4, 4' are used with connecting rods 8 from the levers to the crank pins and coupling rods from the four pistons to the rocking levers. The adjacent ends of the rods 4, 4<1> may be connected directly to each other, or drag links 5 may be interposed. The upper rocker-arms may be single-armed and may be cross-connected by long-coupling rods to the rocker-arms at the opposite ends of the lower cylinder. Such long-connecting-rods may be jointed either to the arms or directly to the piston-coupling rods, and are always in tension. The crank-shaft may be below or between the cylinders. Balancing may be effected by providing forked big-ends to the connecting-rods, and by duplicating one of the cranks and its connecting rod. The duplicate connecting rods 8, 8<1>, Fig. 15, are jointed to an equalizing lever 20 slotted at 22 to receive the forked ends of the rocking lever which works on a pivot 19. When combining a number of these units the crank planes are set at angles of 360/n or, preferably 180 - 180/n, n being the number of units. With an even number of units, the resultant inertia couple is counterbalanced by a compensator comprising a pair of opposite cranks or eccentrics on, or driven from, the crank shafts and driving reciprocating masses which may not transmit any driving effort, or may be usefully employed, for example, as an air compressor. Inertia forces of the second order due principally to the curved path of the small ends of the main connecting rods may be counterbalanced by a small bob-weight driven by a crank or eccentric from an auxiliary shaft driven at twice the speed of the main shaft.
Patent GB-1442975-A (GB)
Title: Meter for measuring rotary speed
IPC: F16C17/08
Filed: 1975-02-26
Abstract: 1442975 Bearings NISSAN MOTOR CO Ltd and KANTO SEIKI CO Ltd 26 Feb 1975 [26 Feb 1974] 7970/75 Heading F2A [Also in Division G1] One end of a spindle 28 (Fig. 3) is mounted in a radial bearing 42 and has a journal 44 supported by a support bearing 40 biased by a helical compression spring 46 such that a shoulder 48 (Fig. 2) at the other end of the spindle 28 is urged against the end of an adjustable sleeve 50 also having a radial bearing 50a for a reduced end portion 28c of the spindle. Adjustment of the sleeve 50 varies the axial force between the spindle 28 and the support bearing 40. In an alternative embodiment (Fig. 5) the helical compression spring 70 is located in the sleeve 60 and the support bearing is fixed. A container for damping oil 54 may be provided as shown in Fig. 2.
Patent GB-920249-A (GB)
Title: Means for attaching a knob to a spindle, particularly for setting potentiometers
Inventor: PARMENTER ALAN DAVID
IPC: H01C10/20
Filed: 1958-03-12
Abstract: 920,249. Key locks. GENERAL RADIOLOGICAL Ltd. March 12, 1959 [March 12, 1958], No. 7984/58. Class 44. [Also in Groups XXIV and XXXVI] A knob is secured to a shaft of a potentiometer or the like only when a key is turned in a lock embodied in the knob. In one form, a knob 21, Fig. 3, carries a facially toothed coupling sleeve 25 which as shown is prevented from engaging a correspondingly toothed coupling sleeve 24, secured to the shaft of a potentiometer (not shown) by a ball 29 cooperating with a cam 23 on the barrel of a cylindrical lock 22 within the knob. On turning a key in the lock 22 and correspondingly curning the cam 23, springs 26 between the knob 21 and a stationary support sleeve 28 screwed into the potentiometer housing engage the facial teeth on the sleeves 24, 25 by relative axial movement therebetween to couple the knob to the shaft. In a modification, the barrel 35, Fig. 6, of the cylindrical lock 22 carries a semi-cylindrical lug 37, Fig. 7, which by turning the key in the lock is rotated to engage radially in one of four recesses 34 in a driven sleeve 33. A watertight coupling passing through a rubber diaphragm 32 connects the driven sleeve 33 to the shaft of a potentiometer.
Patent GB-1597036-A (GB)
Title: Cephalosporin synthesis
IPC: C07D501/60
Filed: 1978-03-02
Abstract: 3-(Thiomethyl)cephalosporins of the formula <IMAGE> in which the substituents are defined in Claim 1 are prepared by a novel process. These compounds are obtained by replacing, in a corresponding cephalosporanic acid which has an acyloxy group in the 3-position, this group by the group -SR<13> by reaction with a sulphur nucleophile in an organic solvent under virtually anhydrous conditions. The compounds obtained can be used for the control of infections in warm-blooded animals (mammals) or as an intermediate for the preparation of other cephalosporins.
Patent GB-854643-A (GB)
Title: Suspension rail tracks
IPC: B61B13/04
Filed: 1957-03-13
Abstract: 854,643. Suspended railway rails. GRUBE, W. March 13, 1957, No. 8296/57. Class 104 (2). In a suspension railway having at least one rail track, comprising a plurality of rail sections suspended on supporting elements mounted on a framework or cable structure connecting the track-supporting columns the adjacent rail sections are mounted on the supporting elements so as to be slidable relative to one another in the longitudinal direction and their adjacent ends are connected to one another so as to be pivotable in the vertical and horizontal directions. In the arrangement shown in Figs. 1 and 2 a beam 1, forming part of a lattice framework which is mounted on suitably-spaced pillars or posts, supports a spherical bushing 4 within a suitably-shaped bearing-member 3. A tubular extension 5 of a supporting-frame 6 extends through and is supported by the bushing 4. A pear-shaped member 7 secured to an adjacent supporting-frame 8 is engageable within the tubular extension 5 so as to be slidable and pivotally mounted therein, thus allowing the frames 6 and 8 to shift in the longitudinal direction and to pivot relative to one another. Each frame 6 or 8 supports two hollow rectangular cross-section rail-tracks 9 or 10. Connecting-members 14, 15 having spherical ends 16, 17 are slidably mounted in the adjacent hollow ends of the rails 9, 10 so as to permit the rails 9, 10 to move in the longitudinal direction and to pivot, a limited amount, in the vertical and horizontal directions. Springs 18, 19 of rectangular cross-section surrounding the central portion of the members 14, 15 and disposed in the gap between the ends of the rails 9, 10 provide a support for the running and check wheels of travelling-gear moving over the gap between the rail ends. In an alternative arrangement shown in Figs. 4 and 5 double-headed rails 20, 21 are supported on support-frame 6<SP>1</SP>, 8<SP>1</SP> by bolts 25 passing through slots 28 in the webs of the rails 20, 21. The bolts 25 are provided with spherical-headed washers 29 which engage the rails 20, 21. The end of one rail 20 is provided with a cut portion 89 which is engaged by a ballshaped head 30 provided on the other rail 21 to permit longitudinal movement and pivoting of one rail relative to the other. Coil-springs 31, 32 of rectangular cross-section are also provided in the gap between the adjacent ends of the rails 20, 21.
Patent GB-1159793-A (GB)
Title: Apparatus for Feeding Cigarettes or other Rod-Like Articles.
Inventor: MOLINS DESMOND WALTER
IPC: A24C5/35
Filed: 1965-07-01
Abstract: 1,159,793. Endless conveyers. MOLINS MACHINE CO. Ltd. 29 June, 1966 [1 July, 1965], No. 8311/69. Divided out of 1,159,791. Heading B8A. In an apparatus for merging two stacks of cigarettes or other rod-like articles moving in directions transverse to the axes of the articles, the stacks are carried by conveyers to a merger zone which lies above a conveyer which carries away the merged stack. A first stack of cigarettes C 1  is delivered by a chain conveyer 201 down a sloping plate 204 on to a double band conveyer (2051, 206 and thence to a zone above a conveyer 226 where they are merged with a stack of cigarettes C 2  fed by a double chain conveyer 213 over a bridge member 225. The merged stack C 3  is then carried away, e.g. to a packaging machine, between the bottom and top bands respectively of two conveyers 230, 231. The speed of the conveyers 230, 231 is controlled in response to a mechanism 233 actuated by a lever 232 that rises and falls with a pliable weighted flap 228 that rests on the top of the stack C 3 . In another embodiment (Fig. 3) photo-electric level detection of the top of the stack C 3  controls the speed of the conveyers.
Patent GB-707709-A (GB)
Title: Process for the production of n-[-a:-g-dihydroxy--a:-a-dimethyl-butyryl]--a-alanine--a-mercaptoethylamide
IPC: C07C233/46
Filed: 1952-04-02
Abstract: N - [a 1 : g 1 - Dihydroxy - b 1 : b 1 - dimethylbutyryl] - b  - alanine - b 11 - mercaptoethylamide (pantethein), is prepared by reacting a mixed anhydride of pantothenic acid and a second carboxylic acid with cystamine and reducing the resulting bis-disulphide or by reacting the mixed anhydride with cysteamine which gives the desired product directly.  The mixed anhydride used as a starting material may be the anhydride of pantothenic acid with an acid X.COOH, where X is an alkyl, aryl, aralkyl or alkoxy group. A suitable anhydride is obtained by reacting a chloroformic ester with sodium pantothenate in an inert solvent.  In examples: (1) sodium pantothenate is treated with ethyl chloroformate and the resulting anhydride is reacted with cystamine and reduced with sodium amalgam to pantothein; (2) the anhydride prepared from pantothenic acid and ethyl chloroformate is reacted with cysteamine to give pantethein; and (3) the mixed anhydride obtained from sodium-pantothenate and benzoyl chloride is treated with cystamine and the product is reduced to pantethein as in (1).
Patent GB-1334641-A (GB)
Title: Apparatus for forging
IPC: B21J9/08
Filed: 1972-02-23
Abstract: 1334641 Forging apparatus UNITED AIRCRAFT CORP 23 Feb 1972 [10 May 1971] 8456/72 Heading B3H A forging press comprises a fixed lower die 110 mounted on a bed 1 and a movable upper die 109 mounted on a ram 2 and enclosed by a twopart heater and a casing, the parts of the-heater being separatable to permit access to the dies and controlled in dependence on the position of the dies by a control unit 300 operated by a sensing device 302. The casing is in two parts which are fixed to the bed and the ram, respectively, and sealingly engageable together. The chamber defined by the casing can be filled with inert gas such as argon or be evacuated. The heater is an induction heater formed of helical copper tube through which water is ducted. The dies 109, 110 are made of molybdenum and fixed to back-up plates 103-106 by screws and the rear back-up plates each have a cooling chamber. A knock-out pin is provided for the lower die actuated by any suitable means. The press may form part of a conveying line, Fig. 2, provided with chambers 178, 193 having sliding doors 174, 176 operated by driven screws 186, 200 between the chambers and the press chamber. The outer ends of the chambers 174, 176 are closed by hinged doors 182, 196. The chambers can be evacuated or connected to an inert gas and the first chamber 178 has a heater 220. A pair of trolleys 250, 251 running on tracks 204, are used to deliver billets 252 into and through the chambers and to and from the press.
Patent GB-128696-A (GB)
Title: Improvements in or relating to Hydraulic Pumps.
IPC: F04B3/00
Filed: 1918-05-21
Abstract: 128,696. Lamplough, F., and Hydro- Dynamics, Ltd. May 21, 1918. Lever-actuated pumps ; revolving-cylinder pumps.-A revolving-cylinder pump comprises a number of cylinders A' mounted at different angular positions on a driving shaft A<1> with their longitudinal axes in a plane transverse to the axis of the shaft. Two pistons B<2>, B<3> are reciprocated in each cylinder in opposite phase by two eccentric guides B<8>, B<9> to which the pistons are connected, preferably by means of levers B<4>, B<5> and slide blocks B<6>, B' mounted in annular channels in the eccentric guides. The guides are mounted in frames C<3>, C' mounted on pivots C<5> and connected by rods C' to cranks on a shaft C<8> which may be turned by a hand-wheel for the purpose of varying the eccentricity of the guides and the stroke of the pistons. The shaft A<1> carries a hollow enlargement A<2> divided into inlet and outlet channels A<3>, A<4> by a partition A<5>. The pump may be reversed by reversing the eccentricity of the guides. A pair of non-return valves D may be provided to connect the passages A<3>, A<4> to the interior of the casing. The pump may supply liquid to a motor such as that described in Specification 128,695, [Class 69 (ii), Hydraulic presses &c.].
Patent GB-250562-A (GB)
Title: Process for producing lubricants containing water
IPC: B01F3/08
Filed: 1926-03-29
Abstract: 250,562. Heitmann, M. J. April 11, 1925, [Convention date]. Lubricants for machinery are prepared by injecting saturated or superheated steam or cold or heated air or other gas or a vapour into a body of lubricating oil. adding the desired proportion of water with continued injection of the steam,. and maintaining the injection until a stable emulsion is produced. In an example, an emulsion of 50 1b. of polymerized mineral oil or saponifiable oil with 50 1b, of water is produced using steam at 1-2 atmospheres. Solid products may be obtained by first treating a mixture of the mineral oil with agents affecting the viscosity, e.g. higher alcohols, montan wax, ceresin, or " Landine," and maintaining the injection while the aqueous liquid is added from above in a finely-divided state. The preparation of lubricants by spraying lubricating oil with steam into a condensing chamber or into a body of water, and by injecting steam into cooled and stirred lubricating oil, with or without the stabilization of the emulsion by addition of protective colloids, is referred to.
Patent GB-1032774-A (GB)
Title: Improvement in loudspeakers
IPC: H04R1/28
Filed: 1963-03-04
Abstract: 1,032,774. Loud-speakers. W. S. BATEMAN. March 4, 1963, No. 8506/63. Headings H4J and H4X. A rectangular speaker enclosure has a loudspeaker 15 mounted on the inside of the front panel 10 and the bottom panel 13 has a tapered slot which extends diagonally from a front corner to a rear corner with the narrower end of the slot at the front corner. The confronting edges of the slot are preferably of cissoid form and the width of the narrower end of the slot is between 0À015 and 0.030 inch. The slot is formed by cutting a wider slot of uniform width in the panel 13 and attaching thereto two wooden strips 19 which have confronting edges of cissoid form (Fig. 3, not shown). Alternatively the slot is formed in a metal stamping which is secured over the wider slot (Fig. 4, not shown). The front panel 10, side panels 11, top panel 12 and bottom panel 13 are of spruce wood and are of the same uniform thickness. The rear panel has an upper part 14, and a lower part 14a, of lesser thickness to provide a resonant element. The height of the enclosure is 3/2 x the length of the slot. Cloth 22 is hung from the centre of the panel 22 parallel to the loud-speaker cone axis.
Patent GB-1478783-A (GB)
Title: Repairing underwater portions of offshore structures or pipes
IPC: E02B17/00
Filed: 1976-01-19
Abstract: 1478783 Caissons; repairing offshore structures SEA & LAND PIPELINES Ltd 19 Jan 1976 [28 Feb 1975] 8575/75 Heading E1H In a method of repairing an underwater portion of an offshore structure or pipe which extends both above and below the surface of the water, a housing 9 is used which comprises a tubular member open at its upper end and having an aperture 10 at its lower end through which the structure or pipe passes, the housing being disposed with its open end above the surface of the water and a seal 11 being formed between the housing and the structure or pipe, and the water pumped from the housing to enable entry of men and equipment for effecting repairs. For the riser pipe 1 shown, a section 7 is removed to enable the housing 9 to be slid over the pipe down to the region 6 to be repaired. The seal 11 may act to support housing 9, together with optional supports 13. The housing 9 may comprise longitudinal sections for clamping around a platform leg 14, the sections being connected along sealed flanges 16.
Patent GB-1171886-A (GB)
Title: Suspension Systems for Motor Vehicles.
IPC: B60G3/22
Filed: 1968-02-22
Abstract: 1,171,886. Independent rear suspension; mounting differential gearing. FORD MOTOR CO. Ltd. 22 Feb., 1968 [1 March, 1967], No. 8578/68. Headings B7D and B7H. In an independent rear suspension for a motor vehicle, a differential 10 is supported from the vehicle frame for limited pivotal movement about a transverse axis, road wheels 30, 32 are mounted on trailing suspension arms 36, 38 and driven by universally-jointed drive shafts 52, 60 extending laterally from the differential, and a torque reaction member 86 connected to the differential 10 has its outer end connected to one suspension arm 36 so that torque reaction is transmitted to the arm 36 from the differential 10 during acceleration to prevent " squatting " of the rear of the vehicle. Cylindrical extensions 22, 28 of the differential housing are mounted in brackets 24 on the vehicle frame by annular rubber elements 20, 26 which oppose rotation of the differential only to a limited extent. Each suspension arm 36, 38 is a hollow structure formed of sheet metal and connected by rubber bushes 44, 46 to a transverse frame member 34. The torque reaction member 86 surrounds one drive shaft 52 and has projections 88, 90 at its inner end journalled by rubber bushes 82, 84 in spaced flanges 78, 80 on the differential 10. A ball bearing 92 positions the outer end of the member 86 on the drive shaft 52, and a torsionally-resilient arm 94 secured to the member 86 is connected to the suspension arm 36 by resilient means 96. In a modification, Fig. 3 (not shown), a rubber bush connects the outer end of the member 86 to an annular member in the arm 36. An anti-roll bar 66 is connected between the arms 36, 38. Reference has been directed by the Comptroller to Specification 1,089,626.