baber/WOPTO huggingface dataset:
Patent GB-1411153-A (GB)
Title: Extruder for extruding rubber or plastics material including apparatus to control feed of material thereto
IPC: B29C48/03
Filed: 1973-04-03
Abstract: 1411153 Feeding extruders HERMANN BERSTORFF MASCHINENBAU GmbH 3 April 1973 [14 April 1972] 15835/73 Heading B5A The feed aperture of an extruder is divided by a baffle 8 into a first part 2 through which rubber or plastics strip is drawn to the screw 6 by a feed roll 5, and a second part 3 containing a piston 9 which moves down or up in response to under- or over-feeding and operates one of the microswitches 13, 14 to start or stop means (not shown) supplying the strip 15 to the aperture 2. Hydraulic or pneumatic means urge the piston 9 downwardly to compact the material as it is fed to the screw.
Patent GB-613103-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D1/143
Filed: 1946-05-30
Abstract: 613,103. Slicing machines. BERKEL & PARNALL'S SLICING MACHINE MANUFACTURING CO., Ltd. (U.S. Slicing Machine Co. (in part), and Maatschappij van Berkel's Patent N.V. (in part) ). May 30, 1946, No. 15895/48. Divided out of 613.088. [Class 28(ii)] In a slicing machine the substance carrier 6 and the slice receiving tray 9 are movable to- and-fro as an assembly by a handle 12, located at the same side of the knife as the tray 6. The carrier 6 and the tray 9 are on a movable support on which are guides 9A and 10 which maintain the tray 6 at a predetermining angle to the slicing plane and the tray 6 descends stepby-step one slice thickness, the amount of step descent being adjusted in unison with the setting of the slice thickness. This adjustment is obtained by a cam 19, Fig. 3, mounted on the thickness gauge plate 4. At each push-pull movement a roller 18 strikes this cam 19, whereby a ratchet and pawl 14,. 15 gives a lead screw 13 a partial turn. Another spring-pressed pawl, engaging the lead screw like a nut, is thereby moved along the screw and being coupled to a link 21 attached at its other end to the tray 9 whereby the tray is lowered step-by-step as above. The latter pawl can be released by a handle 20 to reset the tray to any initial height. Specification 613,088 is referred to, in which the substance carrier 6 and the slice receiving tray 9 are carried on an arm 6A supported by groups of rollers 8A, 8B and 8C on rails all inside the base 1.
Patent GB-255046-A (GB)
Title: Improvements in or relating to slide-valves for the scavenging air pump and for the starting air in internal combustion engines
IPC: F01L13/00
Filed: 1926-06-24
Abstract: 255,046. Aktiebolaget Atlas Diesel. July 7, 1925, [Convention date]. Starting.-An adjustable slide 9 for two-stroke engines is adapted in one position to allow air for scavenging to be compressed in the space behind the engine piston 3 and in another position to admit compressed air to the pump space for starting the engine. As shown, the valve 9 is actuated by a crank 12 and a cross-head 15 to which the valve stem 16 is rotatably secured, adjustment of the valve about its axis being effected by a lever 18 engaging a squared part 19 of the valve stem. The valve 9 works in the ported lining 10 of a casing 11, which has a port 30 open to the atmosphere, a port 7 connected through a valve to a reservoir for starting air, a conduit 6 leading to the rear end of the engine cylinder. a discharge port 8 for the starting air, and a passage 36 leading to a receiver 1 for scavenging air common to all the engine cylinders. The valve comprises two chambers 22, 23 formed by a central partition 20. an inner wall 17, end walls 21, and an outer wall with ports above and below the partition In the pumping position shown, scavenging air is drawn in by the piston 3 through the port 30, valve chamber 23, and conduit 6, and is expelled through the conduit 6, valve chamber 22, and passage 36 to the receiver 1. When the valve is turned into the starting position, starting air enters through the port 7 and valve chamber 23 and is exhausted through the valve chamber 22 and passage 8, which leads to an annular chamber surrounding the engine cylinder and open to the atmosphere. A slide valve 40 for admitting scavenging air into the working cylinder 2 may be actuated by a spindle 41 connected to a disc 42 on the valve 9 in such a manner that the rotary adjustment of the valve 9 is not transmitted to the valve 40. In modifications, the receiver is supplied with scavenging air by a separate compressor, single or double acting. and the valve 9 is shifted longitudinally to provide the two positions, in which it may then be reciprocated or rotated. Rerversing. - The crank 12 may be turned through 180‹ for reversing by the means shown in Fig. 2. A sleeve 47 slidably keyed to the shaft 12x of the crank 12 is movable axially by means of an arm 49 sliding on a rod 50 and provided with a rod 51 movable by manual, pneumatic, or other means. Helical grooves 52 in the sleeve 47 are engaged by rollers on pins 53 carried by a sleeve 54 on a shaft 55 driven from the engine shaft.
Patent GB-113931-A (GB)
Title: Dust Mop Cleaner.
Inventor: FORRESTER HAROLD JOSEPH CHARLE
IPC: A47L13/502
Filed: 1917-11-01
Abstract: 113,931. Forrester, H. J. C., (Montgomery, A. W. H., and Howland W.). Nov. 1, 1917 Mop wringers. - A dustmop-cleaning appliance com. prises a dust receptacle 10, a removable cover 11 carrving a cylindrical chamber 15, and means within the chamber for resiliently holding the mop handle whereby the mop may be reciprocated or shaken. In the construction shown, the mop handle is detachably connected to a disk 17 mounted on a helical spring 16 secured at its lower end to a wood reinforcing plate 14. The dust is caught by a removable paper lining 24.
Patent GB-398606-A (GB)
Title: Improvements in and relating to means for playing golf games
IPC: A63D13/00
Filed: 1932-11-22
Abstract: 398,606. Games. TURNER, J. H., Frilford Heath Golf Club, Abingdon, Berkshire. Nov. 22, 1932, No. 15952. [Class 132 (ii).] In a game of the kind wherein golf balls are caused to enter holes or equivalent objectives 11, Fig. 1, by being driven by a golf club against a deflecting member 8, the playing surface comprises a board 5 inclined upwardly from a horizontal tee 14, the inclined portion having superimposed thereon the deflecting member or members against which the balls are driven. The end of the board is rounded and provided with a resilient cushion 9 leading to a wedge member 10 and the deflecting member 8. Obstacles 16 may be provided, between which the balls must pass before reaching the deflecting member. Modified forms of the apparatus are shown in Figs. 2, 3 and 4.
Patent GB-795614-A (GB)
Title: Purifying methyl ethyl ketone by distillation
Filed: 1955-06-03
Abstract: Crude methyl ethyl ketone, such as is obtained by oxidation of lower aliphatic hydrocarbons, is separated from admixture with lower alcohols and esters by distilling the mixture in a distillation column and introducing water into the column, at a point above that at which the mixture is introduced, at a rate such that the concentration of water in the liquid phase below the water-inlet is between 25 and 60 weight per cent, maintaining a head-temperature of 72-75 DEG  C. and a base-temperature of 85-100 DEG  C., whereby a cut containing the M.E.K. and the esters will pass overhead leaving behind substantially all the alcohols, and then subjecting the ketone-ester cut to a second extractive distillation using water as extractant at a columnconcentration of 75 to 96 weight per cent while maintaining a head-temperature of 70-72 DEG  C. and a base-temperature of 80-100 DEG  C., whereby the esters will pass overhead leaving behind an aqueous solution of the purified M.E.K.  A mixture containing 43.4 weight per cent of M.E.K., 40.2 weight per cent of ethyl acetate and methyl propionate, 15,8 weight per cent of methanol, ethanol, propanols and butanols, and 0.6 weight per cent of other ketones is introduced into a distillation column; and water is supplied to an upper section of the column in such amount that the liquid phase in the column below the water-inlet contains 25 weight per cent of water.  The column is operated at a reflux ratio of 5 to 1 with a head-temperature of 73.5 DEG  C. and a base-temperature of 88 DEG  C.  The M.E.K. and the esters distil overhead, together with some water; and there is taken off at the base an aqueous mixture of the alcohols and the other ketones.  The alcohols are separated from this mixture by distillation, and the water recovered is used in the extractive distillation column.  The M.E.K. cut, obtained as overhead, contains 50.4 per cent M.E.K., 42 per cent esters and 5.6 per cent water, together with traces of alcohols.  This cut is introduced into a distillation column, and water is introduced into an upper section so that the liquid phase in the column contains 95 per cent of water.  The column is operated at a reflux ratio of 5 to 1 with a head-temperature of 70 DEG  to 71 DEG  C. and a base-temperature of 97 DEG  C.  The esters distil overhead together with some water; and there is taken off at the base an aqueous solution of purified M.E.K.
Patent GB-1060278-A (GB)
Title: Signal filtering system
IPC: G01S13/53
Filed: 1964-04-17
Abstract: 1,060,278. Pulse radar. STANDARD TELEPHONES & CABLES Ltd. April 17, 1964 [April 22, 1963], No. 15985/64. Heading H4D. It is stated that in a prior art pulse Doppler radar system, wherein echo pulses heterodyned at 3 with the output of a coherent local, oscillator 4, produce at A echo pulses from stationary objects of constant amplitude from cycle to cycle, and echo pulses from moving objects amplitude modulated from cycle to cycle at the Doppler frequency wherein the output at A is sampled in gate 5 by a train of pulses having a repetition frequency (Fr-#) differing only very slightly from the frequency Fr of the transmitted pulses, and wherein the samples at 13 are fed to a band pass filter 7 designed with a lower cut-off frequency f 0  to pass on to indicator 8 only signals arising from the amplitude modulation of the moving object echoes, that the sampling of stationary object echoes of constant amplitude occurring at either end of the sampling sweep will give rise to frequencies   f.#/Fr, where f is the maximum frequency   spectral component present in the spectrum of the echoes, lying above f 0  and thus passable through filter 7 to give an erroneous indication. To overcome this, the invention prescribes the reduction of said maximum frequency f, by the use of a low pass filter 9, Figs. 3, 4, 5 (not shown), between mixer 3 and gate 5, cutting out all frequencies above f 0 <SP>FR</SP>/ # . It is thus seen   that the frequency f.#/Fr now becomes such that now no frequency is produced capable of passing through filter 7. If only a fraction <SP>1</SP>/n of each cycle is to be sampled, then the gate 5 may be operated by the output of an AND gate having a pulse train of frequency n(Fr- #) at one input; and a train of pulses of 1 frequency Fr and width -and coincident nFr with the desired portion of the cycle, and the other input (see Fig. 4, not shown). Alternatively, Fig. 5 (not shown), the latter pulse train may be applied to open a first gate at the input of filter 9, and the former pulse train may open a second gate at the output of the filter.
Patent GB-233194-A (GB)
Title: Improvements in apparatus for producing moulding cores
IPC: B22C13/12
Filed: 1924-07-03
Abstract: 233,194. Petterson, K. G. V. July 3, 1924. Core-making. - In compressed air injector apparatus for ejecting sand from a container and charging it into and packing it in a core-box, the injector is fitted with a hand-controlled valve mechanism so that the injector may work either continuously or intermittently. The container 1 is provided with a vertical glass window 32 through which the level of the sand may be observed, and has an orifice at its lower end through which the sand descends in front of a nozzle 8, Fig. 3, the sand supply being regulated by a screw-down valve 9. Compressed air for discharging the sand through the nozzle is supplied through a pipe 18, Fig. 1, by way of a spring-pressed valve 16 which is actuated through a pivoted toe-piece 25 by the points of a handdriven star wheel 22. The star-wheel axis is mounted in pivoted arms which may be locked in the adjusted angular position by a screw 28, in order to regulate the lift of the valve. Air pressure may be supplied directly to the upper surface of the sand to clear the container, by way of a pipe 31 in which a shut-off valve 30 is fitted. A manometer 33 is mounted on the main air service to indicate the air pressure.
Patent GB-210017-A (GB)
IPC: G09F13/26
Filed: 1923-06-20
Abstract: 210,017. General Electric Co., Ltd., (Assignees of Patent-Treuhand-Ges. f³r Elektrische Gl³hlampen). Feb. 15, 1923, [Convention date]. Addition to 205,467. Signs.-A modification of the sign described in the parent Specification consists in mounting the interchangeable electric discharge elements upon a casing located above or below them. The elements e shown in Fig. 1 are secured to a casing c in the interior of which may be provided the current leads, a choking coil, a transformer and the terminals of the elements. Concave deflectors f are mounted behind the elements and take the form of the corresponding letter of numeral to which the element is shaped. The transformer may be enclosed in a casing a. Controlling devices such as condensers may be carried behind the reflectors.
Patent GB-403370-A (GB)
Title: Improvements in ground speed and drift indicators for aircraft
IPC: G01P3/36
Filed: 1932-06-08
Abstract: 403,370. Ground speed and drift indicators for aircraft. GATTY, H., 136, Hill Street, Ocean Park, California, U.S.A. June 8, 1932, No. 16161. Convention date, Nov. 7, 1931. [Class 106 (iii).] A ground speed and drift indicator for aircraft comprises a perforated or transparent strip driven at constant speed and through which objects on the ground are viewed, the distance of the strip from the eye being adjusted until there is no apparent relative movement between the strip and the objects on the ground. The indicator comprises an endless strip 15, which may be cinematograph film with the emulsion washed off, with uniformly spaced parallel lines 16 moved at constant speed on toothed rollers 13 and 17 past a window 10, objects on the ground being viewed through the soft rubber eye-piece 35, window 10, reflecting prisms 9 and 11 and aperture 8. Roller 17 is an idler roller and roller 13 is actuated by spring 18 wound by key 19, unwinding of the spring without driving the roller being prevented by ratchet wheel 20 engaged by pawl 21. The speed of rotation of the roller 13 is kept constant by the governing apparatus shown in Fig. 5. In a modification, the strip 15 is replaced by a pair of sprocket chains connected by uniformly spaced transverse bars. The distance of the eye-piece 35 from the moving strip is adjusted through the rack 39 and pinion 38 until the movement of the strip 15 synchronises with the apparent movement of the objects on the ground viewed through the eye-piece. The ground speed of the aircraft can be calculated from the position of the eye-piece as indicated on the scale 45 on or adjacent the standard 37. Angle of drift is obtained by moving the apparatus about its pivotal support 47 on the fuselage 41 until ground-objects viewed through eye-piece 35 travel in the same direction as strip 15, the aircraft. Speed observations can be taken either with the apparatus rotated so that the strip 15 is moving in the same direction as the objects on the ground or with the pointer angle of drift being read by pointer 44, on case of apparatus, against arcuate scale 42 coaxial with the pivotal mounting of the apparatus and carried by brackets 43 mounted on fuselage 41, the zero of the scale being directly under the pointer when strip 15 is moving parallel to the fore-and-aft line of the reading zero, a correcting factor for the angle of drift being necessary in the lattor case. Scale 45 may be ordinary scale of distances or may be a " modified scale " which takes into account the speed of the strip 15 in order to simplify the calculations.
Patent GB-551810-A (GB)
Title: Improvements relating to tyre inflator connections
IPC: B60S5/04
Filed: 1941-12-16
Abstract: 551,810. Tyre inflator connections. SMITH, W. F. Dec. 16, 1941, No. 16238. [Class 99 (i)] Means for connecting an inflating-pump to a cycle or other tyre valve, intended to replace the usual short length of rubber tubing, comprises a pair of members a, b united by a ball c and socket e, one member having a screwed stem d for attachment to the pump, and the other having a screwed socket f for attachment to the tyre valve. The members are united by rolling the edge of the socket over the ball. Washers h, i may be interposed as shown, the washer h having a hole of less diameter than that of the bore g in the member a so that the end of the tyre valve bears against a soft annular seating.
Patent GB-953335-A (GB)
Title: Fungicidally active sulfites
IPC: C07C301/00
Filed: 1960-05-09
Abstract: The invention comprises sulphites of the formula: <FORM:0953335/C2/16> where R1 represents hydrogen, a C1 to <F\L> group or a chlorinated methyl group, or R1 and R2 are joined together and collectively represent a divalent alkylene group having a chain of four or five carbon atoms which together with the carbon atom carrying the cyano group forms a cyclopentyl or cyclohexyl group which may be substituted in one or more positions by a C1 to C4 alkyl group. The compounds are prepared by reacting a cyanohydrin of the formula: <FORM:0953335/C2/26> with 2-chloroethyl chlorosulphinate and removing the hydrogen chloride formed in the reaction, the reaction being optionally performed in the presence of a volatile inert solvent. Many cyanohydrins suitable as starting materials are specified. Examples are given. The compounds of the invention are used as fungicides (see Division A5).ALSO:The invention comprises fungicidal compositions containing sulphites of the formula <FORM:0953335/A5-A6/1> where R1 represents hydrogen, a C1 to C3 alkyl group or a chlorinated methyl group and R2 represents a C1 to C6 alkyl group or a chlorinated methyl group, or R1 and R2 are joined together and collectively represent a divalent alkylene group having a chain of four or five carbon atoms, which together with the carbon atom carrying the cyano group form a cyclopentyl or cyclohexyl group which may be substituted in one or more positions by a C1 to C4 alkyl group, mixed with solid or liquid carriers, dispersing, wetting or sticking agents, or other pesticides.  One or more finely particled solids, such as hydrated silica, diatomaceous earth, pyrophyllite, talc, and neutral clays may be used to take up one or more of these sulphites and, optionally, a dispersing or agent or a mixture of dispersing and wetting agents may be added giving a dust.  The proportion of sulphite and wetting agent may be increased to give a wettable powder which may be applied in an aqueous spray.  Dispersion agents such as condensed naphthalene-formaldehyde sodium sulphonate, lignin sulphonates or imides of copolymers of maleic anhydride and olefinic comonomers may be used.  Wetting agents such as alkylphenoxypolyethoxyethanol, non - ionic ethylene oxide condensates with long-chain alcohols, mercaptans, or carboxylic acids, or sulphated alcohols, or alkyl-benzene sulphonates, or sulphosuccinates may be used.  Liquid concentrates emulsifiable with water may be provided in the form of organic solvent solutions containing at least one of the sulphites and an emulsifying agent.  The emulsifier may be a non-ionic agent such as an alkylphenoxypolyethoxyethanol or an ethylene oxide condensate of a long-chained fatty acid or mercaptan or alcohol. The pesticides specified are bis(chlorophenyl) trichloroethane, bis(chlorophenyl) dichloroethane and 2-chloroethyl tert-butylphenoxypropyl sulphite.
Patent GB-143085-A (GB)
Title: Improvements in sparking plugs for ignition purposes
IPC: H01T13/52
Filed: 1919-06-30
Abstract: 143,085. Barker, P. J., and Willis, C. F. June 30, 1919. Sparking-plugs.-The inner ends of the electrode C, insulator B, and casing A are shaped so as to present a continuous rounded surface without recesses or projections.
Patent GB-560449-A (GB)
Title: Manufacture of pyridine-2-carboxylic acid-3-acetic acids and esters thereof
IPC: C07D213/79
Filed: 1941-12-22
Abstract: Pyridine-3-acetic acid and esters thereof are prepared by reacting a pyridine-3-carboxylic acid halide which contains in the 2- position a carboxylic ester group, with diazomethane and then treating the diazo-ketone so produced with an alcohol preferably in the presence of a catalyst known to assist the reaction of diazoketones with alcohols.  If desired the product may be hydrolysed and/or decarboxylated.  Starting materials mentioned include quinolinic acid 2-methyl ester -3-chloride, 6-phenyl quinolinic acid -2-ethyl ester -3-chloride.  The reaction with diazomethane is preferably carried out in a solvent such as ether, a hydrocarbon, or a halogenated hydrocarbon.  For the formation of acid esters from the diazo ketones there may be used aliphatic, araliphatic, alicyclic, heterocyclic and basically substituted alcohols.  In examples (1) Quinolinic acid-2-methyl ester -3-chloride is added to a solution of diazomethane in methylene chloride to produce pyridine - 2 - carbomethoxy - 3 - diazomethyl ketone which is treated with methanol in the presence of silver oxide to form pyridine-2-carbomethoxy-3-acetic acid.  Hydrolysis with caustic soda forms pyridine-2-carboxy-3-acetic acid (b -homoquinolinic acid), and decarboxylation of this compound yields pyridine-3-acetic acid.  (2) The pyridine -2-carbomethoxy-3-acetic acid methyl ester prepared in example (1) is subjected to mild acid or alkaline partial saponification to give pyridine-2-carbocyclic acid -3-acetic acid methyl ester, which when melted evolves carbon dioxide to form pyridine-3-acetic acid methyl ester.  Other esters may be formed in a similar manner compounds mentioned being pyridine-3-acetic acid-propyl ester, -isopropyl ester, -allyl ester, -butyl ester, and -isobutyl ester.  As parent materials there should be used compounds which contain an ester group in the 2-, 4-, or 6-position which is saponified relatively easily, and in the 3-position an ester group which is relatively difficult to saponify.  The Specification as open to inspection under Sect. 91 includes also the treatment with diazomethane of a pyridine-3-carboxylic acid halide which contains in the 4-, or 6-positions either a carboxyl group or a group capable of conversion into a carboxyl group.  Additional starting materials mentioned include quinolinic acid-2-amide-3 chloride, quinolinic acid-2-nitrile-3-bromide, cinchomeronic acid -4-methyl ester -3-chloride, iso-cinchomeronic acid-6-ethyl ester -3-bromide.  This subject-matter does not appear in the Specification as accepted.
Patent GB-484859-A (GB)
Title: Improvements in and relating to the production of a testing thread for ascertaining the spinning capabilities of a fibrous material and the strength of a thread spun from it
IPC: D01G15/00
Filed: 1937-06-14
Abstract: 484,859. Testing strengths of threads. LITTY, P. June 14, 1937, Nos. 16507 and 16508. Convention dates, June 13, 1936 and May 20, 1937. [Class 106 (ii)] [Also in Group IX] The breaking strength of a thread 55 is shown by a pointer 58, the thread being clamped at 60 to a tension member 57 and at 61 to a rack 62 which is moved downwards by a pinion 63.