baber/WOPTO huggingface dataset:
Patent GB-852833-A (GB)
Title: Variable products from montan wax and a process for their manufacture
IPC: C10G73/00
Filed: 1957-04-26
Abstract: Products are obtained from resin-containing montan wax, or a mixture of a resin-containing crude montan wax and montan resin obtained by extracting crude montan wax, the resin content being at least 25% in both cases, by oxidatively bleaching to yield a product having an iodine number above 3.  The bleaching may be effected with chromic acid at temperatures of 90-130 DEG C. or higher, with or without the application of pressure.  The oxidation products may be partially or completely esterified with polyhydric alcohols (including phenols), e.g. ethylene, propylene, diethylene, triethylene, thiodiethylene and thiodipropylene glycols, butane diols, hexane diols, butane triols, glycerol, trimethylol propane, pentaerythritol, sorbitol, triethanolamine, resorcinol, hydroxymethylphenol and polyols containing 2 or more free hydroxyl groups which have been etherified with alkyl radicals having 12-20 carbon atoms, e.g. lauryl, myristyl, cetyl, stearyl or oleyl.  Catalysts, e.g. sulphuric acid, benzene sulphonic acid or p-toluene sulphonic acid may be used in the esterification.  Before or after the esterification, carboxylic acids, such as wax acids having >18 carbon atoms, fatty acids with 16-22 carbon atoms e.g. stearic, arachidic, behenic, oleic or palmitic acids, or dicarboxylic acids having 4-10 carbon atoms, e.g. succinic, maleic, adipic, sebacic and phthalic acids.  The esterification products as well as the free acids may be reacted with amines, e.g. stearylamine, dodecylamine, octadecylamine, cyclohexylamine, ethylene, propylene, butylene and hexamethylene diamines, diethylene triamine, p-phenylene diamine, p-toluidine, and benzidine.  Any free carboxylic groups present in the esterified and amidated products may be converted into salts, e.g. calcium, magnesium, zinc and aluminium salts.
Patent GB-1490043-A (GB)
Title: Cleaning bar assembly for compactor wheels
IPC: E01C19/22
Filed: 1976-04-02
Abstract: 1490043 Cleaning road roller wheels CATERPILLAR TRACTOR CO 2 April 1976 [13 Aug 1975] 13465/76 Headings B7H and B7J A compactor wheel assembly for a vehicle including a rotatable roller having tamping pads 13 and ice cleaning bar assembly comprising a one-piece U-shaped frame whose arms 19, 20 carry cleaning bars 21 and means at the end of each arm for mounting support bar such as bar 22. The roller is supported on an axle housing 11, to which the U-frame is bolted at 17, and is driven by a shaft 12 through a gear train. The U-frame extends in a horizontal plane below the rotational axis of the roller (Fig. 1, not shown) and the cleaning bars are inclined downwardly from the frame arms. The ends of the arms carry frusto-conical members (Fig. 3, not shown) which have central threaded bores. The members are received in end-pieces of the bar 22 and secured thereto by bolts. The bar 22 may carry a bracket 32 for mounting on trunnion 33.
Patent GB-1441961-A (GB)
Title: Piston rings
IPC: C23C4/06
Filed: 1973-03-21
Abstract: 1441961 Coating piston rings by spraying WELLWORTHY Ltd 14 March 1974 [21 March 1973] 13650/73 Heading C7F [Also in Division F2] The wear-resistant coating on a piston ring is composed of at least 70 wt. per cent of a hardwearing phase or phases and a relatively soft scuffresistant phase, in plate-like form. Preferably, the latter is of Cu or a Cu alloy. The powdered coating material may be sprayed through a plasma gun, so that the Cu is dispensed throughout the coating in thin platelets. The hard-wearing phase may be of a chromium-iron alloy or of chromium carbide in a matrix of nickel-chromium based self-fluxing alloy.
Patent GB-177433-A (GB)
Title: Improvements in or relating to current-collecting shoes
IPC: B60L5/38
Filed: 1921-05-13
Abstract: 177,433. Twinberrow, J. D., and Gaze, H. E. May 13, 1921. Shoe collectors.-A contact-shoe 1 operates at two distinct levels for over-contact or undercontact conductors, and is normally maintained in a mid-position by a spring 15 which tends to resist movement to the down-position. The shoe 1 is integral with an arm 2 secured at 3 to the vertical side 4 of a parallel frame 4, 5, 6, 7. The spring 15 is contained in a casing 11 which is secured to the beam 10 together with the side 7, and engages the flange of a plunger 14 provided with a spherical seating for a washer 13 on a bolt 12 carried by the arm 6. A spring 16 may be used to prevent chattering and assist the downward movement of the shoe 1, but the spring 15 must be the stronger. Lock-nuts 20 and washers 21 adjust the normal position of the shoe 1. The shoe 1 and arm 2 should be weaker than the parallel frame so as to break on meeting an obstruction without damaging the frame. The ends of the shoe may be chamfered.
Patent GB-509524-A (GB)
Title: Method and machine for milling corn and other grains
IPC: B02C9/00
Filed: 1938-05-09
Abstract: 509,524. Impact pulverizers. ZATHURECZKY, E. May 9, 1938, No. 13761. Convention date, May 15, 1937. [Class 59] A method of milling corn &c. by means of a centrifugal device having rotating guide members for the projection of the grains against impact surfaces comprises breaking the grains into large-flaked hull and meal kernel parts, separating the meal kernel parts from the hulls and subjecting the hulls to at least one further centrifugal projection to detach any meal kernel parts still adhering to the hulls. As shown in Figs. 1, 2, the pulverizer comprises a hollow hub 2 adapted to be rotated by a shaft 1 and carrying radial tubes 3 mounted in ball bearings and adapted to be rotated when wear occurs, the tube being locked by a catch 9 engaging slots in a ring 7. Guard discs 14 enclose and rotate with the tubes and prevent interference with the stream of grain issuing from the tubes. The impact surfaces comprise plates 12 attached to a ring 11 and enclosed in a casing 10a, 10b. Grain is fed to the hub through a hopper 5 helped by air induced through an orifice 40. In Fig. 3 the hub is provided with throwing tubes 48 slidable on hollow stubs 47 projecting from the hub and operable by a link 50 connected to a ring 53 slidable on the hub boss 46 by movement of a lever 55. In a modification the ring 53 may be provided with a rack engaging a toothed wheel on the tube which is cut away along a helical line and is adapted when turned to regulate the flow of grain issuing laterally through a slot in the tube projecting from the boss. With the above adjustable devices the free flight of the grain between the rotary member and impact surface may be varied. The tubes may be curved in the plane of rotation in accordance with the strength of the desired impact. Instead of the tubes, closed passages may be formed in a disc. In the arrangement of the plant, Fig. 8, the grain from a hopper 23 is led by pipe 24 to the pulverizer 25 and the crushed material is discharged through pipe 26 to a rocking screen 27 where the grits, flour dust &c. are discharged through outlets 30, 31 and 32 whilst the hulls with or without adhering parts of the kernel &c. are led by pipe 28 to an air sifter 29 where the hulls are separated and discharged through pipe 33<1> and the hulls with adhering matter are returned by pipe 35 to the feed inlet pipe 24 for a further passage through the mill. Several units of the form shown in Fig. 8 may be used in series the material fed to the succeeding unit comprising an intermediate product sifted in the air sifter 29, the remainder of the circuit conforming to that shown in the Figure.
Patent GB-543616-A (GB)
Title: Improvements in or relating to telegraph transmitting apparatus
IPC: H04L12/06
Filed: 1940-09-04
Abstract: 543,616. Type-printing telegraphy. CREED & GO., Ltd:, and GRIFFITH, R. G. Sept. 4, 1940, No. 13851. [Class 40 (iii)] Telegraph apparatus comprising an answer-back and a release key, for controlling the transmission of a signal to release the answer-back at the distant station, is so arranged that the operation of the release key prevents the release of the local answer-back irrespective of whether the key is released or held operated. To this end the mechanism 66, 68, 97 shown in Fig. 3 of Specification 461,753 is modified as shown. The answer-back drum 59, instead of being released by a detent attached to the lever 66 which is rotated on the receipt of a " who-are-you " signal, is engaged by a pawl 68b pivoted at 88a and secured to a detent lever 68a normally engaged by the lever 66. When the release key 1a is depressed, latch 97b raises the lever 68a out of engagement with lever 66. Lever 68a is retained in this position by catch 100 engaging lug 102, so that movement of lever 66, due to the depression of the key 1a, does not release the answerback 59. This movement of lever 66 does however release the catch 100 and restores the latch 97b if the key 1a has been released, so that the next movement of lever 66, in response to a " who-are-you signal received from the other station, releases the answer-back.
Patent GB-458484-A (GB)
Title: Improvements in or relating to machines for winding yarn and the like
IPC: B65H54/14
Filed: 1935-06-18
Abstract: 458,484. Winding yarns &c. MARSDEN, C., 5, Camp, Ahmedabad, Bombay, India. June 18, 1935, No. 13868/36. Divided out of 458,473. [Class 120 (ii)] A machine for winding yarn &c. in conical chases comprises a winding spindle 13, a threadguide 62, a traverse cam 32, 33 for effecting relative reciprocation between the thread-guide and the spindle to traverse the yarn longitudinally of the latter and a progression device 58 arranged to engage the periphery of the package being wound and to be operated periodically to advance the layers of yarn &c. along the spindle, the cam being geared to the spindle 13 so as to rotate at a speed which is in constant proportion to the speed of rotation of the spindle and being provided with a track, the feed and return portions of which are of different length and formed so that the speed of traverse in each direction varies along the stroke of the cam. As shown, the spindle 13 is adjustably connected to a clutch 20 driven by a pulley 19 and to a worm 17 driving a worm wheel 31 formed with the cam track or groove 32, 33 actuating the traverse rod 40 which has a screw-threaded extension 43 carrying the progression wheel 58. The shorter or return portion 33 of the cam track extends for about a quarter of the complete rotation of the cam and the longer or feed portion 32 has between three and four times the angular extent of the shorter portion so that the thread-guide is moved outwards comparatively quickly by the track 33 but the inward movement of the guide is performed at a much slower speed owing to the greater length and more gradual slope of the track 32. The cam track is somewhat steeper than that of an archimedean spiral and is formed so that the speed of traverse varies continuously throughout the length of traverse in each direction and the cam throws of a series of divisions of the cam track subtending equal angles at the axis of the cam are preferably arranged so that the difference between the cam throws in adjacent pairs of cam divisions form the terms of a geometrical progression ; the speed of traverse adjacent one end of the throw of the cam is preferably approximately three times that adjacent the other end of the throw. Specifications 24611/08, [Class 120], 458,473, and 458,485 are referred to.
Patent GB-1399845-A (GB)
Title: Slatted board assembly especially for sleeping or lying on
IPC: A47C23/06
Filed: 1973-03-22
Abstract: 1399845 Mattresses &c. DAHMER QUEST & CO 22 March 1973 [22 March 1972] 13870/73 Heading A4M A bed or the like comprises an inner frame 3 adjustably mounted within an outer frame 1 and a plurality of springy wooden slats 4 releasably attached to the inner frame sides by flexible straps 5 of rubber or resilient plastics. Each strap 5 has an integral stud with barbed peripheral rings 50a which may snap into a corresponding hole 33 in the inner frame. Alternatively Fig. 6, (not shown), the stud may be slidably engaged in a longitudinal slot (34) in the inner frame and selectively located in one of a plurality of recesses (35) spaced along one side of the slot (34). The strap 5 also has an integral bolt 52 or bolts with an integral cross-bar 53. The bolt 52 is engaged with a slot 40 in a slot 4, the slot 40 being elongate transversely of the length of the slot 4.
Patent GB-693226-A (GB)
Title: Improvements in turbidimeters
IPC: G01N21/29
Filed: 1950-06-05
Abstract: 693,226. Turbidimeters. ADLER, R. June 5, 1950, No. 13930/50. Class 97 (i). The apparatus comprises an opaque casing 5 having an opening in its top wall 6. Sealed into this opening is a hollow tube 71 which has a transparent base 72 and is open at the top. A graduated hollow plunger 76 having opaque side walls, a transparent base and an eyepiece at the top thereof is slidable within the tube 71 and below and in alignment with the bases of the tube and flange is a lamp 86. In use, liquid is poured into tube 71 and the lamp is lit and then the plunger is moved upwards until the light does not appear visible to an observer looking through eyepiece. A reading is then made on plunger 76 at a mark 74, this reading indicating the turbidity of the liquid.
Patent GB-1431023-A (GB)
Title: Automatic slack-adjusting vehicle wheel brakes
IPC: F16D65/56
Filed: 1974-03-29
Abstract: 1431023 Internal shoe-drum brakes; wear adjustment S E CAMPH 29 March 1974 [6 April 1973] 13958/74 Heading F2E The shoes 2 of an internal shoe-drum brake are actuated by rotation of a cam 5 mounted on a rotatable shaft 6, and via a pair of brake force transmitting elements 4 mounted between the cam 5 and respective ends of the shoes 2, the lengths of which elements 4 are adjustable to take up slack; each element 4 comprises two parts 12, 13 interconnected by screw threads, the part 12 being rotatable to increase the lengths of elements 4 by the action of a single gear member 16 mounted on and coaxially with the cam-shaft 6 and engaging with teeth 14 on both parts 12. The shaft 6 is rotatable by a lever 7 pivoted to a piston-rod 8 of a servomotor 9 actuable by compressed air. In the embodiments of Figs. 2-3 at least one of teeth 14 protrudes into grooves 15 in the gear member 16 which is journalled on shaft 6 by means of a bolt 17. A second member 18 is journalled on bolt 17, but a fixed pin 20 extends into a somewhat larger opening in member 18. Member 18 carries a pawl 21 engaging teeth 22 on member 16. When the cam 5 is operated the tooth (or teeth) engaging the groove(s) 15 move outwardly and the members 16, 18 will turn anticlockwise with shaft 6 until after a predetermined angular movement corresponding to the lost motion between the pin 20 and the hole, the pin 20 will prevent further movement of member 18. Thereafter, and to take up slack, the member 16 will rotate while member 18 remains stationary as the cam 5 is further rotated to actuate the brake. During subsequent brake release the members 16, 18 will be stopped by pin 20 and the parts 12 will rotate to increase the length of elements 4. If it is desired that adjustment should occur during brake actuation rather than release the parts 12, 13 are given a pitch of opposite hand, the pawl locks the member 16 in the opposite direction of rotation and the pin 20 is made resilient to limit the force transmitted during the adjustment motion. In the embodiment of Fig. 4 the parts 12 are interconnected by a gear member 40 and one part 12 has a ratchet wheel 41 engaged by a resiliently mounted ratchet 42 connected to shaft 6. Rotational movement of the shaft 6 in one direction will cause ratchet 42 to slide over one or more teeth of member 41; rotational movement of shaft 6 in the opposite direction will cause rotational movement of parts 12.
Patent GB-700461-A (GB)
Title: Improvements in or relating to the softening of rubber
Inventor: KENDALL CHARLES EDWIN
IPC: C08C19/08
Filed: 1950-06-06
Abstract: Unvulcanized natural rubber is softened by treatment with a per-compound, e.g. hydrogen peroxide, an alkyl hydroperoxide such as tert. butyl hydroperoxide, an acyl peroxide, in the presence of an organic compound containing a thiocarbonyl or mercapto group, e.g. thiourea, an alkylated thiourea, thiophenol, betanaphthyl mercaptan, thiacetamide, alphanaphthylthiacetamide, quinoline-2-thiol, mercaptothiazole, mercaptobenzthiazole, mercaptobenzimidazole, zinc diethyldithiocarbamate.  The per-compound and the said organic compound may each be present in an amount from 0.02 to 10 per cent. by weight of the rubber. Specification 694,317 is referred to.
Patent GB-234832-A (GB)
Title: Improvements in strips of sheet-metal for weeding
IPC: A01B1/12
Filed: 1925-05-29
Abstract: 234,832. Mackensen, F. May 30, 1924, [Convention date]. Invertible-tool, multiple-tool, and single-tool implements; tools, construction of.-A weeding appliance comprises a strip of metal consisting of a guide strip b and a toothed part a bent downwardly so as to form an obtuse angle with the guide strip. The base line A-A of the teeth closely approaches the bend B-B. Several strips Dlay be, disposed side by side with gaps between them to accommodate rows of plants; or a single, long strip may be provided with gaps. The Specification as open to inspection under Sect. 91 (3) (a) states also that several strips may be arranged consecutively with the teeth displaced relatively to one another, that several strips may be arranged to be brought into and out of operation consecutively as by mounting them on a rotatable common axle, that each of several strips may be rotatable about a special axis, that interchangeable strips may be provided, and that the holders are arranged to offer little resistance to the soil. This subject-matter does not appear in the Specification as accepted.
Patent GB-194594-A (GB)
Title: Improvements in sorting machines
IPC: D06F93/00
Filed: 1922-05-18
Abstract: 194,594. Cott, A. van, and Evans, J. May 18, 1922. Sorting on picking or sorting tables and the like. -In a machine for sorting laundered articles and the like to which identification members are attached, rods 20, Fig. 2, extend upwardly and inwardly between lower and upper annular members 12, 15 so that articles sorted on to the upper ends of the rods will be collected at their lower ends. The lower ends of the rods 20 are journaled in sockets 17, Fig. 5, in the member 12, and their upper ends rest in slots 19 in a flange 18 on the member 15. The member 12 is rotatably mounted on rollers 14, Fig. 2, in a segmental framework 13, 10. One end cf a replaceable band 25, Fig. 4, retained within guides 26 inside the member 15, .is attached to a roller 27, while the other end engages with the free end of the member 15. Identification marks on the band 25 correspond with the pins 21, Fig. 5, on the articles. The operator, mounted on a platform 11, Fig. 2, places the pins 21 on the correspondingly-numbered rods 20, so that the articles are collected at the lower ends of the rods. When one batch has been sorted, a ring 24, Fig. 2, may be placed within and in contact with the rods 20 above the sorted articles, so that a second batch may be sorted while the first set is removed. The machine may be rotatably suspended, instead of supported as shown, and the rods 20 may be of any desired shape, for example, the rods may be downwardly bent near their lower ends.
Patent GB-479081-A (GB)
Title: Improvements in the production of electrodes for electric accumulators
IPC: H01M4/72
Filed: 1937-05-20
Abstract: 479,081. Electrolysis ; batteries. DAL PONTE, R., and MULLER, E. May 20, 1937, No. 14106. [Classes 41 and 53] Accumulator electrodes are produced by electrodeposition of metal on a grid 4 connected as cathode from a jet 3 of electrolyte projected from a nozzle 2 enclosing the anode 1 ; the deposit is then oxidized electrolytically by an alkaline electrolyte projected from a similar apparatus in which the electrode within the nozzle is connected as cathode. The grid is rotated during treatment. In the latter operation the cathode is preferably enclosed within a diaphragm to permit disengagement of gas. In a further step the oxide deposit may be reduced to form active metal. In a modification an alkaline electrolyte is employed for the deposition of metal and an intermittent current is employed, the electrodes being short-circuited during the periods of interruption. During the passage of current the metaldeposit is oxidized by oxygen carried along from the anode; during interruption the deposit is reduced and activated. Silver may be deposited from a cyanide solution. The deposition base may consist of thin iron, steel, aluminium or other metal foil or fabric or of metal coated fabric or films of organic material such as celluloid or gelatine ; the base material may be removed after deposition by chemical, thermal or mechanical means. The base may consist of angle section strip 6 wound on a metal mandrel 7.
Patent GB-579420-A (GB)
Title: Improvements in and relating to gas turbine power plants
IPC: F02C3/08
Filed: 1943-08-30
Abstract: 579,420. Gas turbines. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). Aug. 30, 1943, No. 14147. [Class 110 (iii)] [Also in Group XXXIII] Air is compressed in a three-stage centrifugal compressor and burned with fuel in a number of combustion chambers 32 circularly spaced within an annular air duct 29. The first two blade rings of the turbine are carried by discs 14, 13 fast on the compressor shaft. The last blade ring is carried by a disc 15 fast on a shaft 17 which drives an aircraft propeller. Additional fuel introduced by burners 51, is burnt before the last blade ring. The air duet 29, the casing 22 of the turbine and the exhaust duct 24 are made double-walled. Air passes between the double-wall 29, 30 to the space between a cover plate and the turbine disc 14. Air also enters at 64b and passes over the downstream surface of the disc 15 into the space between the double walls of the exhaust duct. The tubular shaft 17 drives the tubular propeller shaft 58 through gearing 55, 56, 57. The diaphragms between the turbine discs are built up of spaced dished discs 48 with distance rings 45. A starting motor 90 is overhung at the end of the compressor shaft. Air for the cabin of the aircraft is supplied as occasion demands from any of the stages of the compressor through a selector valve 94.
Patent GB-196200-A (GB)
Title: Improvements in captive caps for collapsible metal tubes
IPC: B65D35/42
Filed: 1922-05-19
Abstract: 196,200. Rumball, F. W. May 19, 1922. Stoppers, means to pre- ,vent loss of.-A screw cap 3 is attached to a collapsable tube by a wire 6 of which one end is rotatably secured to a stud 4 on the cap and the other end is passed through a hole in a lug 1, integral with the shoulder 2 of the tube, and secured to act as a hinge, preferably by being formed into a loop 7. The lug 1 is preferably produced at the time the tube is formed, and may be the raised portion of one or more letters, a design, or a trade mark embossed on the shoulder 2. The wire 6 is conveniently shaped as shown with a loop 8 and an horizontal portion clearing the middle edge of the cap.