baber/WOPTO huggingface dataset:
Patent GB-693573-A (GB)
Title: Means for separating relatively round articles from articles which are less round
IPC: A01D33/04
Filed: 1950-08-14
Abstract: 693,573. Potato harvesters. JEFFES, R. H. F. July 9, 1951 [Aug. 14, 1950], No. 20105/50. Class 6(iii) [Also in Group II] In a potato digging and lifting machine, the potatoes and the earth and stones are separated by depositing them on one end of an endless flexible belt 26 extending between rollers, at least the forward roller 39 of which is laterally inclined, the belt being arranged above and at one side of the lower end of an upwardly rising conveyer 23, 24 so that potatoes roll off the belt on to one side 23 of the conveyer but earth and stones are deposited by the forward end of the belt on the other lateral portion 24 of the conveyer. A partition 27 may separate the conveyer portions 23, 24. The belt rollers are connected by brackets to levers, the lateral inclination of each of which is adjustable by turnbuckles and the forward roller 39 is preferably higher than the other. The belt is tensioned by one or more telescopic rods connecting the roller brackets or one ceritral extensible spring- biassed strut if the rollers are inclined but parallel, and the brackets are adjustably mounted in slots. The sides of the belt may have V ribs engaging in V grooves in the rollers. Overlapping plates may be attached to each of the brackets along the lower side of the belt to form a guard against entry of dirt between the upper and lower laps of the belt. The digging shares 13 at the forward end of the machine, adjacent the tractor 11, distribute the potatoes and earth on to rearwardly-travelling grid conveyers 14, 15 which partly allow the earth and small stones to fall through and deposit the residue on to a transverse conveyer 17 having lateral retaining beards 20, first of all the residue passing between the spikes 18 of a grid conveyer 19 which removes any large lumps of earth. The transverse conveyer 17 delivers on to the inclined belt 26. The output conveyer 23 delivers potatoes to two-passages 30 connected with sacks, a partition operated by a handle 31 selecting one passage at a time. The other side 24 of the conveyer discharges back to the ground.
Patent GB-148224-A (GB)
Title: Improvements in or relating to spray nozzle petrol carburettors for internal combustion engines
IPC: F02M5/02
Filed: 1920-07-09
Abstract: 148,224. Smal, F. Feb. 19, 1919, [Convention date]. Spray carburettors.- Relates to carburettors of the kind comprising a main nozzle 3 surrounded by a choketube 2 and a slow-running nozzle 4 adjacent the edge of the throttle valve 6, both nozzles being fed from a constant-level chamber 5. According to the invention, to prevent flooding of the main nozzle 3 when the carburettor is tilted, e.g. on aircraft, this nozzle is fed by a pipe 8 which communicates with the fuel chamber 5 through a pipe 9 level with the top of the nozzle, and also through a pipe 12 containing a constricted plug 11. When the carburettor is tilted so that the nozzle orifice is below the fuel level in the chamber 5, the pipe 9 is uncovered and the nozzle is fed through the plug 11 only. In a modification, the pipe 12 is provided with a cock or valve which is coupled with the throttle valve 6 in such a manner that it is opened when the throttle valve is fully open.
Patent GB-625384-A (GB)
Title: Crankshafts for internal combustion engines
IPC: F16C3/12
Filed: 1947-07-26
Abstract: 625,384. Crankshafts. NORTON MOTORS, Ltd., and HOPWOOD, H. July 26, 1947, No. 20202. [Class 80 (ii)] In a single-throw built-up crankshaft for a parallel twin-cylinder internal-combustion engine, wherein flanges 3 on crankpin halves 2 are bolted to opposite sides of a central flywheel 4, the crankpin flanges 3 are substantially concentric with the crankpins. A smaller outer peripheral arc of the webs is concentric with the inside of the flywheel-rim to fit therein, and there is a single locating dowel 7 coaxial with the shaftaxis. An opening 10 in the flywheel forms part of the lubricating duct to big-end feeds 12, and reduces the size of the balance-mass 13 required.
Patent GB-861355-A (GB)
Title: Improvements in and relating to vacuum thermoforming
IPC: B29C51/10
Filed: 1958-06-25
Abstract: 861,355. Vacuum-moulding thermoplastic sheet materials. DU FONT DE NEMOURS & CO., E. I. June 25, 1958 [June 25, 1957], No. 20284/58. Class 87(2). [Also in Groups XVII and XXIII] A sheet 32 of thermoplastic resin is clamped to a frame 34 by bars 30, the sheet heated until it is soft, and the softened sheet positioned over a heated die 17. A heated plug 18 is then pushed down, until it reaches the position shown in Fig. 3, compressing the air between the sheet and the surface of the die 17, forcing the sheet up into the cavity 35 in the bottom of the plug 18, the bottom of the plug being open to atmosphere or suction through a passage 27. Vacuum is then applied at 19, and air withdrawn through ports 20. 23 and the sheet drawn into contact with the die 17. It is stated that by the use of such a die, the bottom of the sheet is drawn to the same extent as that of the outer wall. The die and plug may be made of aluminium, and the plug may have a thin coating of polytetrafiuoroethylene to prevent the sheet from sticking. The forming die may have a satin finish. The thermoplastic resin sheet may be polyethylene, polymethylmethacrylate, nylon, polyvinyl chloride, cellulose acetate or butyrate or polyoxymethylene resins. The Specification includes numerical details of the plug and die temperatures, and the relative sizes and tapers of the die and plug. In a modification, Fig. 5, the bottom of the sheet may be predrawn, by blowing it out instead of sucking it in, by applying compressed air through a passage 48 in the plug 45. Specification 753,299 is referred to.
Patent GB-381255-A (GB)
Title: Improvements in smokers' knives
IPC: A24F9/04
Filed: 1931-07-15
Abstract: 381,255. Tobacco pipe scrapers. WALKER & CO. (SHEFFIELD), Ltd., Homeland Works, Button Lane, Sheffield, and NICHOLLS, L., (Representative of Nicholls, A. E.), Burngill, Bushey Wood Road, Totley, Derbyshire. July 15, 1931, No. 20285. [Class 130.] A smokers' knife is provided with a folding blade a serving as a scraper for a pipe bowl and having a bevelled scraping edge b and a serrated cutting or rasping edge c, which may also be bevelled, as shown in section in Fig. 3. The point d of the blade may be shaped to fit the bottom of a pipe bowl and may have its edges bevelled and serrated up to the point. The knife may be fitted with other adjuncts such as a knife blade e and a pricker f. In a modification, the inner edge of the blade a is partly serrated and partly formed with an ordinary cutting edge.
Patent GB-1355725-A (GB)
Title: 16,17 -seco-delta4,9-10 and delta 4,9-10,11 steroids
IPC: C07C62/38
Filed: 1972-05-02
Abstract: 1355725 16,17 Seco-steroids SYNTEX CORP 2 May 1972 [12 May 1971] 20292/72 Heading C2C Novel compounds of the formula (wherein R<SP>1</SP> is free or esterified carboxy, acetyl, C 1-4  alkyl, or -CH 2 OH which may be C-substituted by one or two C 1-4  alkyl groups or by one C 1-4  alkyl group and a phenyl group and in which the OH group may be esterified or etherified; R<SP>2</SP> is C 1-4  alkyl; R<SP>3</SP> and R<SP>4</SP> are both H or both CH 3 , or R<SP>3</SP> is Hand R<SP>4</SP> is CH 3 ; and Z is a carbon-carbon single or double bond) are prepared as indicated in the following reaction scheme the various reaction steps being effected by processes well known in steroid chemistry. In the formation of the 2,2,dimethyl compounds some 2α-methyl product is also formed. The products may be etherified, esterified, acylated, oxidized and hydrolysed by standard procedures. The novel seco-steroids are anti-androgens and they may be made up into pharmaceutical compositions with suitable carriers. Specification 1,355,726 is referred to.
Patent GB-704908-A (GB)
Title: Improved device for clearing the bore of the stem of a tobacco pipe
IPC: A24F9/06
Filed: 1951-08-29
Abstract: 704,908. Tobacco-pipe cleaners. WARMAN, W. H., and WOLLASTON, H. J.. BUCHANAN-. Nov. 17, 1952 [Aug. 29, 1951], No. 20349/51. Class 130 A blunt-ended rod 7 for cleaning the bore of a tobacco pipe stem is attached to a cap 5 fitting on a closed tubular case 1 containing an absorbent cylindrical cartridge 2 for cleaning the rod 7, and the tube 1 and cap 5 are constructed so that the cap cannot be pushed so far on to the tube as to compress the cartridge, which projects slightly from the tube. The rod 7 is suspended in the bore of the cartridge 2, preferably made from blotting paper, when the cap 5 is fitted on the case. the cap being held in position by slots 6 engaging studs 4 which are arranged to prevent the cap compressing the projecting end of the cartridge. The cap and/or tube may be made of metal, plastic material, vulcanite, or wood. Removal of a soiled cartridge from the case 1 is facilitated by a hole 3, for engagement by the rod 7, in the projecting end of the cartridge. The rod 7 may be soldered or brazed to the cap 5, a ring 8 formed from a projecting end of the rod facilitating manipulation of the rod and cap. Alternatively. if the cap 5 is made of aluminium or a plastic, the rod is fastened thereto by screw threads. For a pipe with a curved bore, the rod 7 may be made of closely coiled spring wire preferably with a core of thin spring wire. The studs 4 preventing the cap 5 being pushed too far on the case 1 may be replaced by a ridge or shoulder or by a sleeve inside the cap.
Patent GB-1048624-A (GB)
Title: Superconductive coil
IPC: H01F6/00
Filed: 1963-05-22
Abstract: 1,048,624. Super-conductor devices. AVCO CORPORATION. May 22, 1963 [Aug. 27, 1962], No. 20354/63. Heading H1K. [Also in Division H2] A multi-layer super-conductor coil for provid ing strong magnetic fields has solid insulation between turns and layers and is provided with electrical shunts across portions of the winding which provide for dissipation of the energy released when the coil goes resistive. The shunt may be continuous and provided by coating the super-conductor wire with a copper or other low resistance, non-super-conductor material and the insulation by a further coating of " Teflon " (Registered Trade Mark) or nylon. Alternatively or additionally, individual resistors situated within or outside the cooling chamber may be connected across sections of the coil. Diode rectifiers may also be used in place of resistors. The super-conductor may consist of a niobium-zirconium alloy, or of Nb 3 Sn or V 3 Ga. Fig. 1 shows an operating circuit in which a temperature-controlled superconductor shunt 11 is connected across the super-conductor coil 14; to energize the coil switches 18 and 23 are operated which heat shunt 11 to make it resistive and also pass current through coil 14; then 18 is opened to de-energize heating coil 19 so that shunt 11 goes super-conducting; switch 23 may then be opened to remove current source 21 from coil 14 and circulating current then continues through shunt 11 and coil 14.
Patent GB-335941-A (GB)
Title: Improvements in and connected with caps for fountain pens and the like
IPC: B43K23/12
Filed: 1929-07-03
Abstract: 335,941. Vivian, G. S., and Valentine & Sons, Ltd. July 3, 1929. No Patent granted (Sealing fee not paid). Reservoir-pen caps.-The cap of a reservoir or stylograph pen contains a concentric tubular portion adapted to enclose the nib or style and to be inserted into the front end of the barrel to hold the cap in place. The tubular part 4 is spaced from the internal wall of the cap and is adapted to engage by means of screw-threads in an annular space formed in a bell-shaped end 5 of the barrel or nib-section and to form an ink-tight joint. The part 4 is preferably formed separate from the cap and is screwed into place through a part 7 of reduced diameter inside the outer shell 2 of the cap. The internal part may be formed integral with a head closing the end of the cap, or a cap 11 may screw on to the outer end. An annular part of a pocket clip 10 may be gripped between the end of the part 2 and the closing-cap. The outer part 2 of the cap may be formed of a number of tubular elements a, b, c, between any adjacent pair of which the clip may be gripped. The dimensions of the parts 2, 4, and 5 are such that the nib is prevented from entering between the walls of the parts 2, 4. Specification 334,570, [Class 43, Fastenings, Dress], is referred to.
Patent GB-1174194-A (GB)
Title: Method of drawing polyacrylonitrile containing fibres
IPC: D01F6/18
Filed: 1967-05-03
Abstract: 1,174,194. Polyacrylonitrile filaments. SOC. ITALIANA RESINE S.p.A. 3 May, 1967 [3 May, 1966], No. 20499/67. Heading B5B. A non-aqueous solution of acrylonitrile polymer or of acrylonitrile copolymer containing up to 20% of copolymerizable monomer, is wet spun into a coagulating bath comprising essentially cumene and the polymer solvent, the bath being kept at 30‹ to 70‹ C. the filaments then being drawn in a bath comprising essentially linear chain paraffins have 10 to 16 carbon atoms in the molecule, the temperature of the drawing bath being at least 30‹ C. higher than that of the coagulating bath. The coagulating bath may also contain up to 25% by weight of linear paraffins having 10 to 16 carbon atoms in the molecule. The amounts of polymer solvent and cumene in the drawing bath are kept below 10% by weight. The filaments may be drawn 5 to 15 times their original length at a rate between 50 and 200 m/min. to give a low dirt absorbing highly lustrous product with a soft hand.
Patent GB-242382-A (GB)
Title: Improvements in machines for shearing metal bars
IPC: B23D33/00
Filed: 1924-09-03
Abstract: 242,382. Jones, E. P., and Jackson, A. H. Sept. 3, 1924. Shearing; shear - blades. -A machine for shearing bars into short lengths has cutters mounted to operate in succession during a single stroke and means for adjusting the cutters to vary the lengths cut. A cross head reciprocated by eccentrics from a shaft F and balanced by a mass W slidably carries brackets N with cutters e co-operating with lower cutters d on brackets M adjustable on a bed D. The lower cutters are level and the upper cutters are set to different heights. In order to vary equally the spacing of the cutters, the brackets M carry gearing p<1>, p<2>, driving pinions m<2> engaging a rack O on the bed D, driven from a shaft P and motor F<1>. The brackets T are moved through projections n<1> engaging recesses in the brackets 5. When bars are cut into long lengths, surplus cutter brackets are received on a stationary extension E<1> separated from the cross-head E by a block R slidable on guides r, Fig. 10. The bars are fed sideways into the machines and are positioned by a stop H oscillated from a cam h. Severed portions fall down shoots h<3> to a conveyer S delivering to a shoot S<1> leading to a skip.
Patent GB-684484-A (GB)
Title: Improvements in dry gas meters
IPC: G01F3/22
Filed: 1949-08-10
Abstract: 684,484. Gas meters. BEGWACO METERS, Ltd., BUTTERWORTH, E., and HINCHCLIFFE, E. J. July 20, 1950 [Aug. 10, 1949], No. 20789/49. Class 54. The case of a dry gas meter is made in two rigid parts, one part b being of box form comprising four sides (top, bottom, and two sides) and the back of the meter case, and the other part a, being a cover for the first part and forming the front of the meter. The gas inlet m and outlet k are formed integral with the box part b whilst the metering mechanism forms a unit which is housed in the box part and is bolted thereto around the gas outlet connection. Sealing of parts a and b is effected by the lip p, formed around the open face of the part b, seating upon the jointing ring o which is placed in the groove n provided in the face of the part a. The sides of the groove are converging and the jointing is secured by screws q.
Patent GB-604935-A (GB)
Title: Improvements in or relating to echo-sounders and like sub-aqueous distance measuring devices
IPC: G01S1/72
Filed: 1945-08-13
Abstract: 604,935. Subaqueous audible signalling apparatus. SADIR-CARPENTIER. Aug. 13, 1945, No. 20810. Convention date, June 29, 1944. [Class 118 (ii)] In a submarine echo-ranging device the receiving translator means is resonantly responsive to two markedly different frequencies, one of which is the signal frequency, and the output derived at the second frequency is utilized to control the gain of the output derived at signal frequency so that the gain decreases when the controlling output increases. A note of sonic or supersonic frequency is transmitted and the wave reflected from an obstacle is received by two microphones 1, 2, Fig. 1, of which the first is tuned to the signal frequency and the second to some other frequency. Extraneous noises, which in general have a shock-like effect, cause an equal response in both microphones, but the signal itself has little or no effect on the second mierophone 2. The signal plus noise voltage developed by the signal microphone 1 is passed to an amplifier 3 and hence to a recording or indicating device 4. The noise voltage developed by the noise microphone 2 is detected, amplified and filtered at 6 and a voltage due to the mean noise level is developed across a preferably variable resistance 5 and used as automatic volume control for the signal plus noise amplifier 3. Hence, a high noise level reduces the gain of the amplifier 3 and prevents the noise from producing a spurious indication or record at the end device 4. Delayed automatic volume control may be employed. The signal plus noise amplifier 3 may be a limit amplifier, i.e. may only transmit an output voltage when its input voltage exceeds a given limit, in this case the voltage across resistance 5. Any of these methods may be combined. Instead of two differentlytuned microphones, one magneto-strictive or electro-dynamic microphone may be employed having two resonant frequencies and embodiments of such microphones are briefly described, Figs. 2, 3, 4a and 4b (not shown). The Specification as open to inspection under Sect. 91 describes a method, Figs. 2 and 3 (Cancelled and not shown), in which the signal voltage and the signal-plus-noise voltage are fed in opposition to an indicator device. The purpose of this is not clearly described. This subject-matter does not appear in the Specification as accepted.
Patent GB-902271-A (GB)
Title: Hydraulic double drum drive for conveyor belts
IPC: B65G23/00
Filed: 1960-06-14
Abstract: 902,271. Hydraulic transmission of power. DUSTERLOH FABRIK FUR BERGWERKSHEDARF G.m.b.H., G. June 14, 1960 [June 26, 1959],.No. 20839/60. Class 69 (2). [Also in Group XXX] An endless conveyer belt 1 (not shown) is driven by being passed in formation around a pair of driving-drums 6, 7 driven by separate hydraulic motors 9, 10 which are hydraulically connected in series with one another, means being provided whereby upon the pressure drop through one motor deviating from a predetermined value, the pressure drop across the other motor is adjusted in a complementary manner. The hydraulic fluid is supplied from a reservoir 12 by a pump 11 and through a pipe 13 to the motor 10. A pipe 14 is connected between the motor 10 and the motor 9, and a further pipe 15 leads from the motor 9 back to the reservoir 12. A branch pipe 19 leads from the pipe 14 to a pair of servomotors 22, 23 so as to operate the pistons 26, 27 of the servomotors in opposite directions. The servomotors are connected at the opposite sides of their pistons by pipes 24, 25 to the pipe 13. The pistons 26, 27 are connected to control members 28, 29 which control the respective hydraulic motors 9, 10, which are of the axial piston type. In operation, should the torque requirement of one of the hydraulic motors vary owing to slip of the belt 1 on the corresponding driving drum or to build up of foreign matter between the drum and the belt, the consequent change in pressure in the pipe 14 causes simultaneous opposite movement of the control members 28, 29 to re-adjust the torque distribution between the motors 9, 10 to the appropriate values.
Patent GB-1153388-A (GB)
Title: Improved Method of Making Light-Weight Aggregate from Fly Ash.
Inventor: BAN THOMAS EUGENE
IPC: C04B18/08
Filed: 1967-05-04
Abstract: 1,153,388. Aggregate for concrete. Mc- DOWELL-WELLMAN ENG. CO. 4 May, 1967, No. 20878/67. Heading C1H. Lightweight aggregate for concrete is made by (a) providing a charge of fly ash containing by weight from 5-10% of free carbon and at least 2% of iron, calculated as the metal; (b) forming the charge into discrete green pellets; (c) passing gas at 550-900‹ C. through a bed of the green pellets to dry them; (d) firing the dried pellets at 1800-2400‹ F. to initiate reaction of the carbon in the pellets; (e) cooling the indurated product; (f) crushing the cooled product; and (g) refiring at 1000-2000‹ F., at least a portion of the crushed product. The composition of the fly ash charge may be adjusted prior to pelletization by removing magnetic iron oxide, by adding iron oxide as mill scale, by adding carbon-poor ashes, slate or shale to ashes containing more than 10% of free carbon, by adding free carbon as powdered coal or graphite to ashes containing less than 5% of free carbon or by separation, e.g. flotation or classification to enrich carbon-poor ashes. Borax, sodium silicate, fluorspar, lime, montmorillonite clay, and silica may also be added. The charge is mixed into a granular mass with water in a pug-mill and then balled, in a rotating drum or an inclined pan, with further water. The pelletized charge is spread as a 5-10 inch layer on a Dwight-Lloyd travelling grate and dried with exhaust gas from the subsequent firing stage. The grate moves the dried pellets under gas torches (heating at 1800- 2200‹ F. forms discrete pellets whereas heating at 2200-2400‹ F forms clinker) to ignite the pellets which then move into a draught of air in which the material is bloated as the carbon reacts with air and with metallic oxides to evolve gases. The material which is refired to oxidize the reduced iron and thereby to prevent staining of the pellets on weathering comprises (1) the whole crushed product after nodulizing with water, (2) only the coarser crushings, or (3) the fines nodulized with water and reblended with the coarser crushings.
Patent GB-1409841-A (GB)
Title: Prostaglandins and the manufacture thereof
IPC: C07D307/935
Filed: 1973-05-02
Abstract: 1409841 Silylated prostaglandins UPJOHN CO 2 May 1973 [10 May 1972] 20918/73 Heading C3S [Also in Division C2] Trimethylsilyl and methyl 16-phenoxy-9α, 11α,15α - -tris - (trimethylsilyloxy) - 17,18,19,20- tetranorprosta - cis - 5, trans - 13 - dienoate, trimethylsilyl and methyl 16-methoxy-16-phenoxy - 9α,11α,15α - tris - (trimethylsilyloxy)- 18,19,20 - trinorprosta - cis - 5, trans - 13 - dienoate, trimethylsilyl and methyl 9-oxo-16- methyl - 16 - phenoxy - 11α,15α - bis - (trimethylsilyloxy) - 18,19,20 - trinorprosta - cis - 5, trans - 13 - dienoate, methyl 9 - oxo - 16 - phenoxy - 11α,15α - bis - (trimethylsilyloxy) - 17,18,- 19,20 - tetranorprosta - cis - 5, trans - 13 - dienoate and methyl 9-oxo-16-methyl-16-phenoxy- 15α - trimethylsilyloxy - 18,19,20 - trinorprostacis-5,10, trans-13-trienoate are prepared by standard methods.