baber/WOPTO huggingface dataset:
Patent GB-688128-A (GB)
Title: Improvements in automatic apparatus for feeding fluent materials
IPC: G05D11/00
Filed: 1948-11-22
Abstract: 688,128. Feeding materials in proportionate quantities. LACEY, P. M. C. Nov. 22, 1949 [Nov. 22, 1948; Jan. 28, 19491, Nos. 29899/49 and 2432/49. Divided out of 688,113. Class 86 In an automatic apparatus for simultaneously feeding liquids and/or finely divided solid materials the supplies are balanced against one another in the required ratio and any out-of-balance is caused to adjust the relative rates of flow in a direction to correct the relative rates. In the construction of Fig. 1 containers 10, 11, for the materials are suspended on the ends of a beam 12 pivoted about a fulcrum 13, the discharge of materials through openings in the bottoms of the containers being controlled by conical valve plugs 14, 15 suspended from the ends of a horizontal control bar 16. The containers are balanced empty and then filled with the materials and again balanced before discharge is commenced by lifting the control bar 16. The materials are discharged at rates in proportion to the ratio between the arms of the beam 12 the outflow being controlled by any unbalance whereby one container rises whilst the other falls so that the relative positions of the discharge openings and the conical valve plugs are adjusted to correct the unbalance. In several other constructions, of which Fig. 4 is an example, the arrangement permits the ratio of delivery rates to be adjusted without the necessity of rebalancing the empty containers whenever the ratio is changed. A pair of beams 50, 51, separately pivoted at 52, 53 are freely interconnected by a pin 56 adjustable along the beam 50 to alter the ratio, the system being balanced when the containers are empty by balance weights 54, 55. The mid-point of the pin 56, Fig. 5, is secured to the beam 50 and rollers 57 carried by its ends are received by channel members 51<SP>1</SP>, 51" of a forked construction which forms the beam 51. Three substances are fed in predetermined proportions by the construction shown in Fig. 6 in which two systems similar to that of Fig. 4 are combined, the beam 61, carrying a second system, being supported at one end by the beam 51 of the first system. Any number of separate materials may be handled by extending the arrangement of Fig. 6. In the construction shown in Fig. 7 delivery from a powder container 11<SP>1</SP> is effected by a power driven positive constant feed device and' vertical movements of this container are transmitted by a lever 70 to the conical plug 14 of the liquid container 10 to give an increased range of control over the feed of the liquid. The effect of the variation of the head of liquid in a container upon the feed therefrom may be compensated for by the form of construction of Fig. 8, (not shown). A method of varying the speed of an electrically driven powder delivery means, in response to an out-ofbalance effect is described, Fig. 9, (not shown). Application of the invention to mixing apparatus described in Specification 688,113 is referred to.
Patent GB-941394-A (GB)
Title: Reinforcing inserts and a method for incorporating the same in dentures
IPC: A61C13/00
Filed: 1961-08-18
Abstract: 941,394. Artificial teeth. H. J. BUNDER. Aug. 18, 1961 [Aug. 25, 1960], No. 29958/61. Heading A5R. A denture reinforcement comprising a wire 1 carrying at each end a collar 2 with a radial screw-threaded hole is embedded in a wax denture model, a screw 3 is located in the radial hole so that it projects from the model, a denture mould is made from the model, the screw supporting the wire in the mould cavity formed on melting out the wax and the denture is cast in the mould around the wire. The projecting part of the screw which is made of synthetic plastic is removed by grinding from the moulded denture.
Patent GB-984559-A (GB)
Title: Improvements in and relating to a logarithmic periodic antenna
IPC: H01Q11/10
Filed: 1963-07-29
Abstract: 984,559. Aeriels. TEWEA TECHNISCH WETENSCHAPPELIJKE APPARATENFABRIEK. N.V. July 29, 1963 [Sept. 19, 1962], No. 30028/63. Heading H4A. A logarithmic periodic aerial comprising two parallel plates 1, 2, each comprising a series of truncated triangular teeth 4, 5, whose length and spacing converge in a linear relationship along the axis of the aerial, is characterized by the angle between the non-parallel sides of the teeth being equal to that between the lines bounding the tips of the teeth. As described, the base width of each tooth equals the geometric mean of its distances from its adjacent fellows, and in each plate the teeth extend from a central beam limited by lines intersecting with those bounding the tips of the teeth. Each plate is connected by means of a watertight terminal box 9 to one conductor of a feeder and the plates are separated from each other, and from a mounting post 7, by means of insulating spacers 6. An embodiment of the aerial is stated to be suitable for television reception in Bands IV and V (470 to 790 Mc/s.).
Patent GB-536614-A (GB)
Title: Improvements in or relating to magnetic switches applicable for use in telephone selectors
IPC: H01H36/00
Filed: 1939-11-14
Abstract: 536,614. Magnetic switches. STANDARD TELEPHONE & CABLES, LTD. (Deakin, G.). Nov. 14, 1939, No. 30037. [Class 38 (v)] A rotating bar magnet 4 driven by a motor 2 causes the successive actuation of a number of armatures 7 pivoted on a ring 5 magnetized axially as shown and the corresponding movement of a number of contact springs 8 which bear on the armatures. In the form shown, the armatures, which are normally pressed to the left by the springs 8, are repelled in turn by the magnet 4 causing the contacts 8 to engage a ring contact 11.
Patent GB-1156662-A (GB)
Title: Machine for Harvesting Tall Crops
Inventor: FOGELS MINTAUTS WARNER
IPC: A01D45/10
Filed: 1965-07-15
Abstract: 1,156,662. Sugar cane harvesters. MASSEY-FERGUSON (AUSTRALIA) Ltd. 6 July, 1966 [15 July, 1965], No. 30037/65. Heading A1F. A machine for harvesting tall crops, e.g. sugar cane, comprises a crop gathering unit including a sub-frame having a ground-engaging skid and adapted to follow ground contour variations, a rotatable conical member the small diameter end of which is the leading end, the member being mounted on the sub-frame and having its axis so inclined upwards and rearwards and being so dimensioned that on any vertical line through the axis and cutting the curved surface of the member the distance between the upper and lower points at which the line cuts the surface is larger than the distance between the lower point and the skid, and a vertical wall mounted on the sub-frame and being below the conical member in working positions of the gathering unit. The conical member 26 is driven by a motor (52) (Fig. 2, not shown) which also drives a cutter (55). The skid 28 is movable relative to the conical member by a hydraulic ram 40. When chopper housing 38 is raised, and the ram is retracted, a bell crank 50 is moved clockwise about its pivot by lever 44 to raise the skid to a transport position (shown in chain lines). Movement of the sub-frame when in a working position about shaft 27 is permitted by a lost motion connection between the bell crank lever 50 and lever 44. Two sub-frames with associated conical members and vertical walls define therebetween a throat converging towards a pair of rotary cutters (not shown).
Patent GB-737836-A (GB)
Title: Improvements in and relating to electric time switches
IPC: G04C23/16
Filed: 1953-10-30
Abstract: 737,836. Mounting terminals. GENERAL ELECTRIC CO. Oct. 30, 1953 [Oct. 30, 1952], No. 30061/53. Class 38 (1). [Also in Group XXXVII] Terminals 57 and switch contact springs 59 are attached to an insulating board 56 by a rivet 68 having an intermediate shoulder 69 and two heads 70.
Patent GB-972019-A (GB)
Title: Improvements in and relating to a method of,and apparatus for,straightening elongatemetal members
IPC: B21D3/10
Filed: 1961-08-21
Abstract: 972,019. Straightening. W. B. PRIDY. Aug. 21, 1961, No. 30159/61. Heading B3E. In a method of straightening and externally cleaning long metallic members (such as oil well drill rods), the member is placed under tension within its elastic limit and rigid members are brought into contact with the member to be straightened which is then rotated whilst the rigid members are traversed along it, thereby causing it to be straightened. In operation, the tube L is connected to couplings N, P (Fig. 3) and hydraulic pressure applied to the piston ends of members G sliding in tubes C, thereby extending the end frame U rearwardly to apply tension to the tube L. The height of lower pressure members 152 is adjusted by setting the beam 70 to the required height on its supporting slings 104. Upper pressure members 143 are brought into contact with the tube L by hydraulic means 176, and the tube L rotated by hydraulic motor 92. The pressure block assembly carried on a cradle K is then pulled from front to rear or vice versa along the length of the tube L by wire ropes 220 (Fig. 1), or 230 (Fig. 3), attached to hydraulicallly-operated winch drums. In Fig. 10 a modified apparatus employing the method of the invention is used directly in conjunction with a well drilling head and derrick. Tension and rotation are applied to the tube 422 to be straightened, by the hoist block 414 and drive means 428, 438. The traversing cradle 450 has two fixed pressure members 456 and a third hydraulically-operated member 476; it is pulled up the length of the tube L by a hoist cable 466, and is prevented from rotating with the tube L by an extension arm 502 which engages either stacked drill pipes or a derrick member such as that at 411. In order to reduce tension on the member L being straightened, both ends of it may be driven by modifying the apparatus of Fig. 1.
Patent GB-484666-A (GB)
Title: Improvements in furnaces for heating the ends of rods, bars, tubes or the like
IPC: B21J17/00
Filed: 1936-11-05
Abstract: 484,666. Metal heating furnaces. BEDFORD, R. A. Nov. 5. 1936, Nos. 30180/36 and 21223/37. Addition to 449,464. [Class 51 (ii)] A furnace for heating the ends of rods, bars, &c. 16 according to the parent Specification is formed with a central longitudinal wall 10 which extends down to the combustion chamber 4 and provides a narrow work-treating chamber 13 on each side of the furnace. The combustion chamber 4 is fired from both ends and there are provided upper walls 17 which form, with the central wall 10, flues 18 through which the gases from the chambers 13 pass to chimneys 19. Shields 26 are provided on each side of the furnace to protect operators from heat. A modification is described in which the furnace is divided into two separate portions by transverse walls which extend outwardly from the wall 10 through the combustion chamber 4, the work-treating chambers 13 and the flues 18, this arrangement permitting the use of one portion of the furnace either alone or at a different temperature from the other portion.
Patent GB-533726-A (GB)
Title: Improvements in or relating to bags and method of making same
IPC: B65D30/18
Filed: 1939-11-16
Abstract: 533,726. Paper &c. bags. DOBECKMUN CO. Nov. 16, 1939, No. 30217. Convention date, Nov. 17, 1938. [Class 94 (11)] In a paper, &c. bag with pleated sides 15, 16 and the panels 25, 26 of the blank united by an adhesive strip 27 to form a back wall, while the bottom is closed by a flap 35 with an adhesive strip 36, the lower parts of the panels 19, 20, 22, 23 are united to the adjacent front and back walls 14, 28 by diagonal adhesive strips 30, 31, 32, 33 so as to shut off from the interior the parts of the bag below said strips and cause the bottom to assume a flat form 'when filled, as shown in Fig .  5. U.S.A. Specifications 2,074,277 and 2,074,992 are referred to.
Patent GB-1178496-A (GB)
Title: Antibiotic 11,837 R.P.
Inventor: MANCY DENISE
IPC: C12P1/06
Filed: 1968-06-25
Abstract: 1,178,496. Antibiotic 11,837 R.P. RHONEPOULENC S.A. 25 June, 1968 [30 June, 1967], No. 30227/68. Addition to 1,057,424. Heading C2A. The antibiotic 11,837 R.P. (Specification 1,057,424) is produced by aerobically cultivating Streptomyces venezuelae var fulvofurvescens DS 7103 (NRRL 3354) or DS 11,355 (NRRL 3355) on an aqueous nutrient medium containing assimilable sources of carbon, nitrogen and inorganic substances. The antibiotic may be isolated from the separated mycelium by extraction with C 1 -C 6  alcohols or mixtures thereof at pH 3 to 7. The broth may be adjusted to pH 7À0, the antibiotic absorbed on a strongly basic anion exchange resin and eluted therefrom with an aqueous alcoholic solution containing an electrolyte. Further purification is by chromatography on a strongly basic anion exchange resin followed by dialysis of an aqueous solution thereof.
Patent GB-366914-A (GB)
Title: Improvements in and relating to inking apparatus for printing machines
IPC: B41F31/04
Filed: 1930-10-09
Abstract: 366,914. Printing-machines. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Wood Newspaper Machinery Corporation; 501, 5th Avenue, New York, U.S.A.) Oct. 9, 1930, No. 30245. [Class 100 (ii).] Inking-apparatus.-An inking-apparatus for a printing-machine is provided with a rigid fountain blade adjustable relatively to the fountain roller, and means adapted to permit the blade to move into contact with the roller to cut off the ink supply and.to return the blade to its initial position. As applied to a fountain for a four page wide printing - machine, the rigid blade 13, Figs. 2 and 4, is in four sections, one for each page width. Each section is provided with a rib 11 engaged by a number of adjustable springs 14 acting to force the blade towards the fountain roller 10. This movement is limited by the engagement of screws 17 carried by the blade section with inclined parts 19, Fig. 2, of a bar 20. Each bar 20 is provided with a threaded lug 21 engaged by a screwed rod 22 extending across the fountain and provided at each end with a handwheel 23, 24 by which the rod 22 may be turned to adjust the distance between the blade and roller 10. One of the finger-pieces 25, Figs. 2 and 8, of each hand-wheel 24 is provided with a cam 26 pivoted to the end of the rod 22 and adapted normally to be turned to the position shown in Fig. 8, in which it holds compressed a spring 27 arranged between a collar 28 fixed to the rod 22 and a collar 31 fixed to the hub of thehand-wheel. By turning the cam 26 the spring 27 is allowed to expand, forcing: the rod 22 and bar 20 to the right to allow the springs 15 to move the blade section into. close contact with the roller 10 to cut off the supply of ink. The adjacent ends of the blade sections 13 have a tongue and groove connection 36, Fig. 2, and beneath these ends are arranged narrow blades 37, Fig. 4, which keep the portions of the roller 10 corresponding to the margins of the pages clear of ink:
Patent GB-1382985-A (GB)
Title: Maleic anhydride copolymer
IPC: C08F22/04
Filed: 1971-06-28
Abstract: 1382985 Maleic anhydride copolymer IMPERIAL CHEMICAL INDUSTRIES Ltd 30 May 1972 [28 June 1971] 30263/71 Heading C3P A 1 : 1 alternating copolymer of maleic anhydride and tetrahydrophthalic anhydride Or a homologue thereof having the general formula wherein R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> each represent hydrogen or an alkyl group or R<SP>3</SP> and R<SP>4</SP> together represent a methylene bridge, and n is the degree of polymerization may be prepared by the reaction of maleic anhydride and tetrahydrophthalic anhydride or a homologue thereof in substantially equimolecular proportions at an elevated temperature in the presence of a free radical-producing initiator. In the examples maleic anhydride is copolymerized with tetrahydrophthalic anhydride, endomethylene tetrahydrophthalic anhydride or 4-methyl tetrahydrophthalic anhydride in the presence of benzoyl peroxide, plasticized with dimethyl phthalate, t-butyl peroctoate or lauroyl peroxide, the monomers either being molten in the absence of solvent or dissolved in methyl ethyl ketone or toluene. The copolymer maybe used as a soil-suspending agent, anti-redeposition agent or builder in detergent compositions and in the examples the copolymers are titrated with calcium acetate to measure the chelation binding power.
Patent GB-458703-A (GB)
Title: Improvements in or relating to methods of preparing cocoa butter for shipment and transportation packages for use therewith
IPC: A63H33/30
Filed: 1935-11-01
Abstract: 458,703. Packages, ROCKWOOD & CO., 88, Washington Avenue, Brooklyn, New York, U.S.A.-(Assignees of Singer, A. A.) Nov. 1, 1935, No. 30269. Convention date, Nov. 1, 1934. [Class 94 (i)] Cocoa butter is prepared for shipment by pouring it, in a liquid state, from a spout 16 into a pasteboard &c. carton 10 having a lining 12 of one or more thicknesses of waxed paper. The carton is fed beneath the spout by a conveyer 11, and after filling, is carried into a cold room. After the contents have solidified, the liner is sealed by adhesive tape &c. to protect the contents from contact with the outer receptacle and from the atmosphere.
Patent GB-251889-A (GB)
Title: Improvements in men's shirts
IPC: A41B1/00
Filed: 1925-12-01
Abstract: 251,889. Anderton, C. E. Dec. 1, 1925. Shirts.-In a reversible shirt, the neck opening has reversible fastening means permanently attached to 'the shirt. The cuff slits have reinforced parallel portions, the upper ends of which are in the same plane. The shirt is divided at the front. All parts are finished on both sides. The collar is of two plies 27, 28, Fig 2, secured between two plies 23, 24 of a neck band so that it can be turned over to either side. The plies of the neck band embrace the two plies of a back and shoulder piece 19 which embrace the edge of the body portion 12. One edge of the neck opening is formed with horizontal button-holes 30, Fig. 3, each provided with a button 33 sewn to the edge of the aperture, so that it may be passed through to either side to engage a button-hole on the edge of the other flap. The cuffs are reversible, and the cuff slits have a reinforcing strip 38, Fig. 7, on one side.
Patent GB-325531-A (GB)
Title: Improvements in the production of esters of ª‡-hydroxy carboxylic acids
IPC: C07C69/675
Filed: 1928-10-20
Abstract: 325,531. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Oct. 20, 1928. Addition to 300,040. Esters of alpha-hydroxy carboxlic acids.-The process of the parent Specification for the manufacture of alpha-hydroxy carboxylic acids from their nitriles, or from the aldehydes or ketones from which the nitriles are obtainable, is modified, for the production of esters of the acids without isolation of intermediate products by adding an alcohol to the reaction mixture before or after the formation of the nitrile. As in the parent process, an inert solvent such as dioxane, tetrachlorethane, ethyl ether, chloroform or hexahydrobenzene is present which is capable of dissolving the reagents and the reaction products excepting the ammonium salt. According to the examples, (1) hydrocyanic acid is introduced into a mixture of dioxane, acetaldehyde, and caustic soda solution, and when the production of lactic acid nitrile is complete, cyclohexanol is added, hydrogen chloride is passed in, and the mixture is boiled; cyclohexanyl lactate is obtained on distillation; (2) chlorethyl alpha-gamma-dihydroxyvalerate is prepared similarly from aldol, hydrocyanic acid, and ethylene chlorhydrin in the presence of chloroform as the inert solvnt; (3) chlorethyl cyclohexanol-1-carboxylate is prepared similarly from hydrocyanic acid, cyclohexanone, and ethylene chlorhydrin.
Patent GB-1219315-A (GB)
Title: Photographic compositions
Inventor: HENN RICHARD WINTHROP
IPC: G03C5/305
Filed: 1968-06-26
Abstract: 1,219,315. Photographic processing. EASTMAN KODAK CO. June 26, 1968 [June 27, 1967], No.30447/68 Heading G2C. In the reversal processing of exposed silver halide emulsions there is used as first developer a solution containing a silver halide developing agent, an aminoalkanol and a mercapto-substituted nitrogen containing heterocyclic anti-foggant which is optionally in the form of an alkali-metal, NH 4  or organic amine salt. The exposed emulsion may be processed by either (i) developing with the first developer, bleaching, fogging and developing with a second developer which may be the same as the first developer, or (ii) developing with the first developer, fogging, colour developing, bleaching and fixing. Preferred anti-foggants contain an - SX group (in which X is H or a cation) bonded to a pyrimidine, trizine, tetrazole, triazole, imidazole, diazole, oxadiazole, or thiadiazole ring.
Patent GB-1134826-A (GB)
Title: Cap forming method and apparatus
Inventor: VOSS JOSEPH MERYL
IPC: B21D51/46
Filed: 1965-10-20
Abstract: 1,134,826. Making closure caps. CHEMETRON CORP. 20 Oct., 1965, No. 30571/68. Divided out of 1,134,825. Headings B3A, B3B and B3L. The subject matter of this Specification is contained in the parent Specification but the claims relate to removing the radially outermost surface of the embossed symbols on the cap skirt.
Patent GB-280046-A (GB)
Title: A device for refacing the valve seatings of water taps and the like
IPC: B23C3/05
Filed: 1926-12-04
Abstract: 280,046. Clifford, A. Dec. 4, 1926. Cutters.-A tool for re-facing valve seats comprises a cylindrical body A of uniform cross-section having end faces B provided with file teeth so that they may be used for acting on the seats of water taps, ball valves &c. on being rotated in either direction and lightly pressed by hand. Tools are made of various diameters to fit different sizes of taps, the sides of the tap openings engaging the body and acting as a guide. Tools of the larger sizes are provided with an axial recess C to receive the stems of valve jumpers to guide them during trueing.
Patent GB-1093042-A (GB)
Title: Pigment
IPC: C09C1/00
Filed: 1964-10-15
Abstract: An amorphous white filler pigment for newsprint comprises by weight 65-80% hydrated silica and 45-20% sodium alumino silicate. The silica constituent is prepared by gradual addition of an amount of acid sufficient to decompose all the alkali metal silicate in an aqueous suspension thereof.  The alumino silicate is prepared by partially neutralizing with a strong mineral acid a sodium silicate with a molar ratio SiO2:Na2O of 2.5 to form a stable sodium silicate solution containing colloidal nuclei and then precipitating the sodium alumino silicate with alum.  The two slurries are mixed and the mixed pigment isolated.