baber/WOPTO huggingface dataset:
Patent GB-913601-A (GB)
Title: Improvements relating to protective equipment for cardan shafts, on agricultural machines in particular
IPC: F16D3/84
Filed: 1959-02-26
Abstract: 913,601. Machinery guards. SCHROTER, K., and WALTERSCHEID-MULLER, B. Feb. 26, 1959 [Feb. 26, 1958; May 6, 1958; Aug. 1, 1958; Jan. 2, 1959], No. 6800/59. Class 80 (4). A non-rotary guard for a universally-jointed shaft 7 of an agricultural machine comprises telescopic sleeves 13, 14, flexibly connected together and having funnelshaped resilient end attachments 10, one sleeve being prevented from rotation by a fixed tension link (not shown) hooked to a lug held by screws 16 which secure the end attachment 10. The sleeves 13, 14 may, as shown, be connected together by a stretched synthetic rubber sleeve 12, or by an interposed helically wound resilient strip or axial blade-spring. To facilitate removal of the funnel-ends 10 without fully removing the screws 16, the screw-receiving holes in the ends may be slotted or may be large enough to receive some of the screw heads. Sealed bearings 15, with lubricant fittings 17, support the sleeves on the shaft 7.
Patent GB-328907-A (GB)
Title: Improvements in means for transmitting rotary motion from a driving element to a driven element at a reduced or increased speed
IPC: F16H1/32
Filed: 1929-01-05
Abstract: 328,907. Vallance, B. Jan. 5, 1929. Crank linkages.-A mechanism for transmitting rotary motion from a driving-shaft to an aligned driven shaft at a reduced speed or vice-versa, comprises a driving shaft 2 journaled in a fixed casing 5, the end of the shaft having an eccentric hemispherical hollow engaging a projection 9<b> located centrally on a plate 7. A second projection 9<a> on the plate engages a similar hollow symmetrically located with centre A on a driven shaft 1. Rotation of the driving-shaft causes the centre of tha hemisphere 9<b> to move in a circular path, whilst the centre A remains fixed. The plate is prevented from rotation about its own axis by means of bevel teeth 10 engaging fixed teeth 11, the apices of the bevel faces itersecting at A. The plate is thus given a tilting motion which is such that all points on its circumference move in identical lemniscate paths inscribed on a sphere with centre A. A stationary guide-arm such as to give a similar result may replace the bevel wheels. The driven shaft 1 carries a part 6 which has a spherical outer surface, centred at A and surrounded by a corresponding inner surface on the plate 7. A series of balls 8, through which the drive is transmitted, is carried by the plate 7 in hemispherical recesses arranged in a plane FG passing through A at right-angles to the axis of the plate, and the balls also engage a continuous wave-like groove 6b in the member 6. Since the balls move in identical lemniscate paths, the member 6 is continuously and uniformly rotated at a reduced speed from the shaft 2. Alternatively, the endless groove may be in the plate 7, and more than one series of balls and grooves may be used. The shaft 1 may be the driver, in which case an increased speed is obtained.
Patent GB-198770-A (GB)
Title: Improvements relating to the circulating systems of compression refrigerating machines
IPC: F25B47/00
Filed: 1922-03-08
Abstract: 198,770. Golby, F. W., (Utility Compressor Co.). March 8, 1922. Refrigerating, compression processes for.-In machines employing sulphur dioxide, the circulating system is washed out with carbon dioxide previously to charging it with the sulphur dioxide to minimize corrosion. The system may be dried and charged with carbon dioxide at about fifty pounds pressure and exhausted, this step being repeated as desired, the sulphur dioxide being charged after the last exhaustion; or the system may be filled with carbon dioxide at about atmospheric pressure before charging it with the sulphur dioxide.
Patent GB-692612-A (GB)
Title: Change speed gear for bobbin spindles of spinning machines
IPC: D01H1/24
Filed: 1949-03-14
Abstract: 692,612. Change-speed and reverse - gear; friction clutches. HINDMARCH, T. Jan. 13, 1950 [March 14, 1949], No. 6939/49. Class 80 (ii). [Also in Group XXXIV] The bobbin spindles of a spinning machine are driven through a change-speed and/or reverse gear having two or more liquid- or gaseouspressure operated friction clutches D, E, or brakes, introducing different gear trains A, D or C, E between input and output shafts A, H, and controlled by valves P, Q in the supply lines K, L, of each clutch, such valves being so interconnected as to be operable to engage or disengage each clutch separately or as a pair, or in pairs simultaneously as necessary to engage, disengage or change the nature of the drive in the gear system. The friction clutches D, E or brakes are engaged by liquid (e.g. oil) pressure snpplied to their pressure chambers X, Y to urge apart facially grooved members F, F<SP>1</SP>, G G<SP>1</SP>, into frictional engagement with complementary outer members D, E, in opposition to constantly acting disengaging pressure in smaller chambers T, T', U, U'. In the engaging pressure supply lines are adjustable needlevalves V W, which in conjunction with peripheral drain holes 1, 3 in the clutch pressure chambers X, Y, provide for continuous flow through an engaged clutch and control the rate of engagement and disengagement and thus the period of time necessary to transfer the drive gradually from one clutch to the other. The control valves P, Q are mechanically interconnected to permit the above specified operation; or Fig. 2 (not shown) are operated by solenoids energised through a single rotary switch; or are operated pneumatically or hydraulically. The two valves may be replaced by a common multioutlet piston valve. Where the coupling is used as a. brake, a final positive lock may be provided.
Patent GB-253579-A (GB)
Title: Improvements in correspondence envelopes and the like
IPC: B65D27/22
Filed: 1925-03-16
Abstract: 253,579. McHardy, M. C. March 16, 1925. Securing paper bags, special means for.-Relates to envelopes, paper bags, and like wrappers adapted to be sealed without adhesive. As shown in Fig. 1, the side flaps A, B, C are provided with apertures 2<a>, 2b, 2<c> through which the barbed tongue 1 of a sealing-flap D is inserted when the flaps are folded inwardly, and the flap A is cut at a to form an inner flap E which is folded about a line 4 provided with a slit e through which the barbed tongue 1 is guided by a tongue 2<e> formed by the aperture 2<a> of the flap A, this latter tongue being adapted to project through the apertures 2<b> 2<c> when the flaps A, B, C are superposed. The flap B is cut to provide an extension u<A> which is adapted to engage beneath the portion OB of the flap A when the flap B is folded. To facilitate opening, the envelope is provided with parallel rows of perforations P forming detachable strips adjacent to the folding lines of the flaps, the ends of the strips being cut to a. taper to enable them to be grasped between the fingers. The perforations may extend around the space upon which the postage stamp is secured. The barbed tongue 1 of the sealing-flap may consist of several folds of an extension of the flap D. In a modification, Fig. 3, the back of the envelope is provided with two parallel slits c, f forming a bridge F beneath which the end of the flap D is inserted, the flap being then folded back upon itself and its barbed end 1 inserted through a slit d in its main portion In another modification, Fig. 4, the sealing-flap D is provided with a tongue arranged parallel to itself, and has a vertical slit g and apertures 2, the latter being arranged to register with bridge pieces F cut in the back of the envelope. To seal the envelope the tongue is folded about the line 9 and passed through the slit g, the flap D being then folded about the line 7 and the tongue interlaced beneath the bars F'.
Patent GB-1165583-A (GB)
Title: Dealkylation of Alkyl-Substituted Aromatic Compounds.
IPC: C07C4/16
Filed: 1967-02-14
Abstract: 1,165,583. Non-catalytic dealkylation of aromatics. MONSANTO CO. 14 Feb., 1967 [14 Feb., 1966], No. 7131/67. Heading C5E. Alkyl aromatics are dealkylated in the absence of a catalyst by admixing with hydrogen and a polycyclic hydrocarbon comprising, as fused rings, an aromatic ring and a non-aromatic ring, and passing this mixture through a reaction zone at elevated temperature and pressure in a manner which causes substantial back mixing. Polycyclic hydrocarbons specified are tetralin, indan, indene and alkyl derivatives thereof. Alkyl aromatics specified are toluene, di- and tri-methylbenzenes, ethyl benzene, methylethylbenzene, di- and triethyl benzene, propylbenzene, methyl- and ethyl - propylbenzene, dimethylpropylbenzene, dipropylbenzene, butylbenzene, methyl- and dimethyl - butylbenzene, ethylbutylbenzene, alkylnaphthalenes, alkylphenanthrenes, alkylanthracenes, alkylpyrenes and alkylchrysenes. The examples describe the dealkylation of toluene and alkylnaphthalenes to benzene and naphthalene respectively.
Patent GB-570240-A (GB)
Title: A process for the manufacture of thiophane-3-one-carboxylic acid esters and of thiophane-3-one
IPC: C07D333/38
Filed: 1943-05-05
Abstract: Thiophan-3-one carboxylic acid esters are obtained by ring-forming condensation of esters of b -thioglycollylpropionic acid in the presence of an alkaline condensing agent.  Specified condensing agents are sodium alcoholates, alkali metals and alkali metal amides. In examples, a mixture of the ethyl esters of thiophan-3-one-2 - carboxylic acid and thiophan - 3 - one - 4 - carboxylic acid is obtained (1) by treating b -thioglycollylpropionic acid diethylester in dry ethereal solution with a dry ethereal suspension of sodamide at 25-30 DEG  C., treating the reaction mixture with a mixture of ice and glacial acetic ester and saturating it with salt before extracting the product with ether; (2) by treating a solution of b -thioglycollylpropionic acid diethyl ester in dry toluene with a suspension of amorphous sodium ethylate in dry toluene at 18 DEG  C., completing the reaction by raising the temperature to 40-50 DEG  C. and treating the reaction mixture as in (1); (3) as in (1) replacing the sodamide by sodium ethylate.  Thiophan-3-one is obtained by saponifying the above esters with alkali and decarboxylating the resulting acids by distillation.
Patent GB-424307-A (GB)
Title: Improvements in and relating to bungs
IPC: B65D39/08
Filed: 1934-03-06
Abstract: 424,307. Bungs. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Mauser Maschinenbau Ges. ; Ehrenfeld, Cologne, Germany) March 6, 1934, No. 7151. [Class 21] A cap - shaped screw - bung for iron barrels or drums has two pairs of projections e providing spaces f which may be engaged by a key for manipulating the bung. The configuration is such that keys of other shapes than that shown may be used in the manner indicated by chain-dotted lines. The projection merge gradually with the cylindrical wall and one of them may have perforations &c. in a sealing cord. The bottom may be flat or recessed.
Patent GB-1200249-A (GB)
Title: Method of and apparatus for compensating for tool wear in machine tools
Inventor: ARMYTAGE FREDERICK WILLIAM
IPC: B23Q17/22
Filed: 1968-02-14
Abstract: 1,200,249. Compensating for cutting tool wear. F. W. ARMYTAGE. 11 Feb., 1969 [14 Feb., 1968], No. 7235/68. Headings B3B and B3T. In a machine tool such as a lathe or boring- machine in which a cutting tool operates to shape a workpiece to a predetermined dimension, means is provided to compensate for wear on the cutting edge of the tool and to facilitate its adjustment thereby maintaining the production of accurately finished workpieces. The cutting tool 5 is mounted in a tool holder 4 on the cross side 3 of the machine and which carries in a housing Z a datum member in the form of a bar 16. At its forward end the bar carries a feeler 31 for co-operating with the cutting edge of the tool and at its rear end a laterally extending member 30 which engages the operating stylus 14 of a sensing valve 13 which is adjustably clamped on a slideway 9, 10 on the cross slide. The datum bar is adjustable and clampable relative to both the tool and the sensing valve in the direction of feed of the cutting tool. In operation, with the slide 3 in a retracted position the datum member is clamped by lever 24 and the valve 13 adjusted with the slide 10 to a position determined by the dimensions of the workpieoe to be machined, the tool is clamped in approximately its correct position and the feeler arm 31 is pivoted by the handle 33 to bring its gauging surface 32 in front, but just clear of cutting edge. In this position the arm 30 will be against the stylus 14, the sensing valve in the said, neutral position and the tool slide feed ram 6 stationary. The datum bar 16 is then unclamped which permits fractional rearward movement of the bar by co-operating between the stylus and arm 30 due to the spring bias of the stylus, this causing operation of the valve 13 which actuate the hydraulic circuit control to move the ram 6 and the tool which subsequently abuts the feeler arm 31, the light pressure exerted then restores the sensing valve, by pressure on the stylus to its mean (inoperture) position. The tool is now in its required position for machining, the datum bar is clamped and the feeler arm 31 is pivoted clear of the tool so that when a workpiece is secured in the machine a cutting operation can be effected. The cutting tool feed is controlled by a hand-operated valve but each time the tool reaches its predetermined position the arm 30 actuates the valve 13 to stop the feed movement of the ram. Periodically the feeler arm 31 is pivoted into co-operation with the tool whereby tool wear is indicated and the subsequent adjustment of the tool as previously described is carried out.
Patent GB-272598-A (GB)
Title: Improvements in wooden hollow-ware
IPC: A47G7/06
Filed: 1926-03-16
Abstract: 272,598. Walker, D. F. March 16, 1926. Addition to 225,259, [Class 99 (ii), Pipes, tubes, &c.]. Umbrella stands; stands and, upright supports. -Umbrella stands, tables, or pedestals, and the like are constructed from an assembly of shaped sections of plywood having their edges connected together in the manner described in the parent Specification, i.e. by being cut so as to present an internal or external V-shaped groove which is filled in by a combined filling of a liquid glue and an agglutinous paste. To assist in the assembly and strengthen the finished articles small steel rivets or staples may be inserted in the edges of the panels. Fig. 1 shows the invention as applied to a vase made from sections bent to shape and assembled about a bottom piece a to which an ornamental base b is subsequently attached. Fig. 6 shows the construction of a shallow bowl formed with a hole a.t the bottom afterwards filled in by a separate circular piece d attached by the V-joint elsewhere employed. Fig. 8 shows an ornamental flower vase adapted to hold a glass water container h. The edge of the mouth is finished off by means of a pair of rings f, g, turned up together and glued in place. Fig. 9 shows a hollow pedestal or fancy table. Th.e articles are made from a, waterproof plywood and are given a coating of a waterproof cellulose polish applied by a spraying process.
Patent GB-899867-A (GB)
Title: Improvements to nuclear reactors
Inventor: LOCKNEY ERIC VICTOR
IPC: G21C7/20
Filed: 1960-03-01
Abstract: 899,867. Nuclear reactors. HEAD WRIGHTSON & CO. Ltd. Feb. 23, 1961 [March 1, I960], No. 7287/60. Class 39(4). A combined fuel element support strut and coolant flow regulating device for a nuclear reactor with vertical fuel channels, in particular a gas-cooled graphitemoderated reactor, comprises a strut 3 supporting a fuel element, and a strut body 9 within which the strut 3 is retractably supported and which is mounted in a vertical fuel channel 2 by having radially arranged web plates 5 attached to it and welded at their outer ends to a support ring 6 making a clearance fit within the channel 2, the lower portion 7 of the strut body 9 extending below the reactor core support plate S to provide a mounting for a valve member 20 by adjustment of which the rate of coolant flow through the channel 2 can be varied. The strut body 9 provides an annular recess which houses a corrugated tube 13 abutting at its lower end against the swaged upper end 8 of the lower portion 9 of the strut body and at its upper end against a shoulder 12 formed in the strut 3. The tube 13 is thus compressed and contracts as the strut 3 is inserted into its position within the strut body 9, unintentional withdrawal of the strut 3 being prevented by means of a circlip 15 inserted in grooves formed in the strut 3 and in a cap 10 screwed to the top of the strut body 9. A shear pin 16 fits through both the strut 3 and cap 10 so that contraction of the tube 13 does not commence below a predetermined loading. A tube 17 with a flange 18 welded to the support ring 6 co-operates with the mitred upper end 21 of the member 20 to provide a flow metering orifice 22. Webs 4<SP>1</SP> may be secured between the tube 17 and the lower portion 7 of the strut body 9. The member 20 is held in position by means of a nut 23 on a stud 24 which is screwed into the portion 7 so that it is possible through the nut 23 to adjust the position of the member 20 and hence the size of the orifice 22. By using a member 20 of sufficient weight, the strut assembly is prevented from being blown up the channel 2. The position of the member 20 may be adjusted before its insertion into the reactor by means of a separate coolant flow calibrating apparatus (not described).
Patent GB-253597-A (GB)
Title: An apparatus for provide a compressed air and water scour for such processes requiring a compressed air and water scour or to provide compressed air for any other purpose
IPC: F04B39/00
Filed: 1925-03-18
Abstract: 253,597. Marshall, G. Andrew-. March 18, 1925. Filters with loose filtering-materials.-A combined air and water scour for filter beds is produced by a closed tank in which air is compressed by water from a tank at a higher level, compressed air and water being successively supplied from the lower tank. The lower tank a, Fig. 1, is provided with an air inlet valve d and an outlet pipe e delivering into a valved pipe f, the upper portion of which is enclosed by a sleeve. Water enters the tank a through a valved pipe c and compresses the air. On opening the valve f<1> the air is first delivered under pressure and the water afterwards siphons off. Separate valved outlet pipes for air and water may be provided in place of the siphon device. Fig. 3 shows apparatus for supplying a battery of filters h, in which the air outlet pipe e is extended to deliver directly to valves h', to which also the water is supplied.
Patent GB-1501610-A (GB)
Title: Radiographic apparatus
IPC: G03B42/04
Filed: 1975-02-21
Abstract: 1501610 Radiographic apparatus PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 21 Feb 1975 [26 Feb 1974] 7358/75 Heading H5R The control system of an X-ray image unit with sheet film changer moves the film and diaphragms to expose the whole film, or right or left half, or quarters; double exposure is inhibited by a register of exposed sections comprising four bi-stable circuits 1, 2, 3, 4. Initially all four have zero output, allowing all sections to be exposed; after exposure the corresponding output is set by the attached circuit to voltage L. The bi-stable circuits are all supplied with a voltage L from line 5 immediately after any exposure; they will change their output to L if their 'condition' inputs, immediately above the respective line 5 inputs, are simultaneously at L; for 1 the condition is permanently L. Gates 21, 31, 41 are OR, while 7, 34, 43, 44 are AND; 33 is a negating device. When outputs 32 AND 42 are both L, gate 7 initiates automatic film change, after which a clearing signal on line 8 resets all outputs to 0. If all four quarters are to be exposed simultaneously (survey exposure), line 6 is set at L; for a left or right pair (oesophagus exposure), line 9 is set at L; for quarter field exposure (stomach) neither 6 nor 9 is energized. With all outputs at 0 and line 6 energized, initiation of exposure exposes all four quarters; the subsequent signal on line 5 sets 12 to L which via OR gate 21 sets 22 to L; this via OR gate 31 sets 32 to L and the combined outputs from 22 and 32 via AND gate 44 and OR gate 41 set 42 to L; 32 and 42 then via AND gate 7 initiate film change and clearing. If line 9 is energized but not 6, with all outputs at 0 initiation of exposure causes fields F I and F3 to be exposed simultaneously; the output of negating device 33 and line 9 being both at L, so that bi-stable circuits 1 and 3 change their outputs to L immediately on receipt of the line 5 signal after exposure. On the next exposure fields F2 and F4 are exposed together, and the following signal on line 5 sets to L output 22 via OR gate 21 and output 42 via AND gate 43 and OR gate 41. All outputs are now L and 32 and 42 combine to initiate film change and clearing. Similar logic applies when two quarters are exposed together before or after two single quarters or all four quarters are exposed separately.
Patent GB-400580-A (GB)
Title: Improvements in the production of valuable products from liquid or liquefiable hydrocarbons containing aromatic substances
IPC: C10G67/04
Filed: 1932-03-12
Abstract: Refined products are obtained from liquid or liquefiable hydrocarbons containing aromatics by wholly or in part removing the aromatics, e.g. by solvents, and then treating with hydrogen or carbon monoxide at elevated temperature and an elevated pressure which may be above 100 atmospheres when the initial treatment has removed little but aromatics but is otherwise below 100 and preferably below 50 atmospheres.  The treatment with reducing gas may be carried out in the liquid or vapour phase, and may be such as to cause cracking or destructive hydrogenation; temperatures of 290-550 DEG  C. are specified.  Catalysts, especially those immune from poisoning by sulphur, are preferably present. Specified catalysts are the metals or oxides, hydroxides, sulphides, or other compounds of, tungsten, molybdenum, chromium, uranium, tin, vanadium, rhenium, manganese, zinc, cadmium, aluminium, and cobalt.  Hydrogen sulphide may be present in the gases to prevent deterioration of the catalyst.  The removed aromatics may be destructively hydrogenated to produce an antiknock gasolene, or may be converted into hydro-aromatics. Solvents specified are liquid sulphur dioxide, aniline, dimethyl sulphate and furfural.  The treatment therewith may be continuous in countercurrent.  Initial substances treated include:--benzines, kerosenes, lubricating oils, mineral oils, tars obtained from coals, shales, tar sands, or other bituminous materials, e.g. by coking, low-temperature carbonization, or extraction with solvents, and the cracking, hydrogenation, distillation, or extraction products of the above.  In one example, a kerosene distillate containing 23,4 per cent of aromatics is thrice treated with an equal volume of liquid sulphur dioxide at -8 DEG  C.; a raffinate containing 7 per cent of aromatics is obtained.  200 gm. of this raffinate is mixed with a catalyst prepared by adsorbing 5 gm. of molybdic acid as to 20 gm. of active carbon, and the mixture is heated in an autoclave, under an initial hydrogen pressure of 30 atoms., for 36 min. to about 400 DEG C. and for 15 min. at this temperature.  100 gm. of refined kerosene containing 3,1 per cent of aromatics, little sulphur, and no unsaturates is obtained.  The sulphur-dioxide extract is destructively hydrogenated to an antiknock gasolene.  Other examples describe the treatment of gas oil and of lubricating oil. Specifications 218,989, 268,774, [both in Class 91, Oils &c.], and 348,834 are referred to.