baber/WOPTO huggingface dataset:
Patent GB-626946-A (GB)
Title: Improvements in or relating to magnetic cores
IPC: C01G49/00
Filed: 1946-05-09
Abstract: A magnetic core consists of a ferromagnetic mixed ferrite having a specific resistance of at least 1000 ohms-cm. cube which exhibits a homogeneous cubic crystal structure and an initial permeability of at least 60 and a loss factor less than 0.06 throughout the frequency range of 10 to 100 kc/sec.  For these properties the ferrite must be fully oxidized and the oxygen loss occurring on heating during its preparation, is minimised by using as low a formation temperature as possible and oxygen is replaced by heating and cooling slowly in oxygen.  To facilitate this the ferrite should be fine grained and porous.  The ferrite may be produced by heating together a mixture of oxides in a fine state produced by prolonged grinding or by precipitation from a solution, and pressed into a core before or after heating. Methods are described, with appropriate proportions and details of treatment, for producing by the grinding method copper-cadmium ferrite, copper-zinc ferrite, magnesium-zinc ferrite and nickel-zine ferrite and for producing copper-zinc ferrite by the precipitation method.  Curves show the relationship between frequency and tan d  of a coil wound on a specified annular ferrite cores and permeabilities are stated.
Patent GB-192335-A (GB)
Title: Improvements in or relating to fertilizers
IPC: C05F11/00
Filed: 1922-05-18
Abstract: 192,335. Poock, L. D. May 18, 1922. Manures.-A liquid fertilizer is obtained by steeping finely-divided deciduous leaves in hot water, allowing the mixture to cool, fermenting it with yeast or other agent, and draining off the liquid from the leaves. A preservative such as benzoate of soda is added to the liquid. A fertilizer for use as a mulch is obtained by adding to the residual leaves as much of the liquid fertilizer as they will absorb. Or the residual leaves may be dried and dug into the soil.
Patent GB-130318-A (GB)
Title: Improvements in Distributing Apparatus or Valve Operating Mechanism Actuated by Means of Cam Shafts.
Inventor: JOUFFRET HENRI VICTOR JULES
IPC: F01L1/053
Filed: 1919-06-04
Abstract: 130,318. Jouffret, H. V. J. July 22, 1918, [Convention date]. Valve-gear.-A cam shaft arranged to operate the parts controlled directly comprises two parts one of which is easily dismountable. The cams a<@> are carried by a shaft a rotating in bearings b and connected to the driving-sprocket c by a hinged joint e so that when the bearings are dismounted. the shaft may be turned up to give access to the valves d. An ordinary jointed connexion, a sleeve coupling, or a cardan joint may be used in place of the hinged joint.
Patent GB-1335004-A (GB)
Title: Self-anchoring stud with a head
IPC: F16B35/04
Filed: 1972-03-27
Abstract: 1335004 Self anchoring studs PENN ENG & MFG CORP 27 March 1972 [15 Dec 1971] 14214/72 Heading F2H A self anchoring stud has a head 12 comprising first and second planar portions 23, 31 which act to prevent stud removal after insertion into sheet material 21. The portions 23, 31 may ;be elongate (e.g. elliptical) in cross-section, with the major axis of portion 23 lying along the minor axis of portion 31. Alternatively, the portions 23, 31 may be circular in cross-section and have their axes displaced. During forced insertion of the stud, material of the sheet 21 is forced into recesses 17, 18 which increases the push-out resistance of the stud. A bevelled surface 30 may be omitted (Fig. 5, not shown).
Patent GB-965879-A (GB)
Title: Improvements in or relating to hollow bodies
IPC: F16J13/02
Filed: 1963-04-10
Abstract: 965,879. Making hollow-ware; jointing. ROBERT BOSCH G.m.b.H. April 10, 1963 [April 11, 1962], No. 14253/63. Headings B3A and B3V. [Also in Divisions B8 and F2] A pair of elements are held together to form a hollow body by one or more U-shaped members engaging abutting flanges thereof and the members retained thereon by a closed metal ring of an L-shaped cross-section pushed over the connection so that its radially and axially directed sides rest against the one arm and the web portion of the members(s) respectively and the parts extending beyond the web portion are bent radially inwardly to grip the other arm of the member(s). An annular washer 7, which may be vulcanized to a supporting wire ring 14 is positioned between flanges 3, 4 of housing elements 1, 2, the flanges pressed together to compress the washer and a U-sectioned split ring or a plurality of ring segments 8 pushed over the flanges and retained thereon by a metal retainer ring 16 which fits over the segments and is retained by radially inwardly bending the lower portions 21 thereof about the lower arm of the segment. A metal ring 15 welded to the inside of the housing 2 prevents the washer 7 moving inwardly during assembly. In a modification a partition member 29 blanked from a retainer ring 27 is located in a U- sectioned annular washer 28 which is retained between a pair of housing flanges as before. A flanged closure member 31 may be similarly assembled to a flanged housing, the ring 32 having one or more diametrically directed portions 34 which partly or entirely overlap the member 31.
Patent GB-473258-A (GB)
Title: Improvements relating to last slice or end piece holders as used in connection with slicing machines
IPC: B26D7/01
Filed: 1937-05-22
Abstract: 473,258. Slicing-machines. BERKEL &PARNALL'S SLICING MACHINE MANUFACTURING CO., Ltd., and COLLINS, H. E. May 22, 1937, No. 14286. Addition to 337,518, [Class 28 (ii)]. [Class 28 (ii)] A last-slice holder has a substance-supporting face 13 to give a last slice of determinate thickness, and another face 26, which is removable or movable to an inoperative position, to give a last slice of lesser thickness. The prong-carrying shafts 22 are journalled in vertical frame members joined by a cross-bar 10. The main face plate 13 has top and side flanges which embrace the cross-bar 10 and the vertical members of the frame. One of the side flanges serves as a housing for a train of gear wheels 25, actuated by a gear 24 and a handle 23, for rotating the prongs 21 which are projectible through holes 20 in the plate 13. The other side flange is secured to the vertical frame member by screws having tapered heads, and the top flange 13a is secured to the bar 10 by a thumb screw 14. The auxiliary face plate 26 has a top flange 26a slotted at 28 to accommodate the screw 14, and a side flange, at the side remote from the gears 25, which has holes which fit over the tapered heads of the screws securing the main face plate. In a modification, the top edge of the auxiliary plate 26 is connected to the flange 13a by a hinged flexible member, e.g. mail chain. The plate 26 hangs over the face 13 from which it is spaced by stop pins. The plate 26 is rendered inoperative by swinging it over to hang against the back of the holder.
Patent GB-1002164-A (GB)
Title: Improvements in apparatus for use in playing games
IPC: A63F3/02
Filed: 1962-04-13
Abstract: 1,002,164. Board games. E. V. BYERS. May 30, 1963 [April 13,1962], No. 14299/62. Heading A6H. Apparatus for playing a game comprises a baseboard 1 marked into a series of contiguous divisions which each comprise either a set of differently coloured areas such as 4, 5, or a set of characters, the apparatus also including a transparent cover plate 7 fixed to the baseboard but spaced therefrom to accommodate a series of movable masks 2 mounted are above each division and provided with a projection 6 extending through the cover plate. The masks are shaped to selectively expose various parts of the divisions on being rotated by means of projections 6. In a modification, the masks are slotted and are arranged to be slidable relative to the base board.
Patent GB-1223615-A (GB)
Title: Improvements in or relating to tractors
IPC: A01B3/10
Filed: 1968-03-26
Abstract: 1,223,615. Tractor hitch. INTERNATIONAL HARVESTER CO. 26 March, 1968 [30 March, 1967], No. 14420/68. Heading A1P. A tractor hitch arrangement mounted on the links of a hitch linkage provides, in conjunction with the power lift system, draft and position control of a trailed implement, i.e. one having at least part of its own weight carried on ground-engaging means. A generally rectangular frame 56, 58 is pivotally supported between the lower links 23. An upright -member 62 rigidly secured to the frame and pivotally supported at its top end to sensing link 25, has mounted thereon a boom 65 free to rotate in a horizontal plane. A force transmitting link 70, which may be rigid or resilient, extends vertically from the rearward end of the boom 65 to a tongue 66 of the trailed implement. The tongue 66 terminates at its forward end in a forked connection 67 to the lower member 56 of the frame. In the event of the tongue breaking away, the link 70 is designed to slip over the boom 65. The draft force may be alternatively sensed by the lower link 23.
Patent GB-734121-A (GB)
Title: Improvements relating to appliances for opening metal cans
IPC: B67B7/46
Filed: 1952-06-09
Abstract: 734,121. Can-openers. LASSMAN, S., and FREEDENBURG, D. June 9, 1953 [June 9, 1952], No. 14459/52. Class 66. [Also in Group XXII] A can-opener comprises a shank member 3 and a piercing member 13 of solid metal and generally of spearhead form with a substantially flat front side 14 and a convexed rear side both terminating at a sharp tip 12 and a short wall portion 18 parallel to the front side, being constituted by a transverse groove 17 adapted for engagement with the rim or bead of a can. The channel may have a slightly constricted mouth to provide a claw-like engagement with the can rim. The whole or part of the flat side 14 is relieved centrally to form sharp side cutting edges 15 extending from the root to the tip of the spear head. The relief may be formed by hollowing out the side 14 by curvature in both longitudinal and transverse directions.
Patent GB-1284141-A (GB)
Title: Improvements in or relating to machines for working crankshafts
IPC: B24B5/42
Filed: 1970-03-25
Abstract: 1284141 Grinding LITTON INDUSTRIES Inc 25 March 1970 [26 March 1969] 14460/70 Heading B3D A mechanism for locating a crank-shaft w, e.g. for crank-pin grinding, by means of a locating surface S 3 , Fig. 3, on a flange F of the crank-shaft comprises an index plate 12 carrying a locating pin 16, means 40, carried by the plate 12 for engaging a second surface portion S 4  of the crank-shaft w and a spring 37 for applying a force to maintain contact between the pin 16 and the locating surface S 3 . A chamfered reduced diameter portion 20 of the pin 16 may enter a locating hole L in the flange, the means 40 being screwed to an end 38 of the spring 37 projecting through an arcuate slot 35 in a retaining plate 26 bolted to the index plate 12, and engaging resiliently against the wall S 4  of a second locating hole m. The opposite end 36 of the spring 37 is engaged in a hole 33 in the plate 26, a second plate 25 retaining the spring 37 in position. Alternatively, Figs. 4-6 (not shown), the locating pin (56) may be arranged to engage the surface of a groove opening radially of the flange (F).
Patent GB-1505533-A (GB)
Title: Telecine film shrinkage compensation
IPC: H04N5/253
Filed: 1975-04-09
Abstract: 1505533 Television RANK ORGANISATION Ltd 10 March 1976 [9 April 1975] 14543/75 Heading H4F Apparatus for adjusting raster registration in order to compensate for film shrinkage in a "telecine" reproducer comprises: a tacho pulse counter producing pulses at a rate indicative of the angular velocity of a smooth capstan in non slipping contact with the film; and a film sprocket hole monitor generating pulses at the sprocket rate. After a sufficient number of sprocket pulses (commensurate with 0À01% accuracy) have been registered in counter 2, Fig. 1, the tacho pulse count 1 is read into store 3 and held. Counter 1 is reset after a slight delay 4. The tacho pulse count is D to A converted 5 and compared 6 with a reference signal relating to unshrunk film to produce a control signal as output which is used to adjust the vertical deflection waveform of the raster producing circuits. In another embodiment, Fig. 2 (not shown), the number of oscillations of a locked crystal oscillator is counted for a given number of tacho pulses. The number of locked oscillations counted in this period is inverted D to A converted and compared with a reference signal relating to unshrunk film. Thermal expansion or contraction is also compensated for. The application of the shrinkage signal to the deflector circuits is described w.r.t. Fig. 3 (not shown). A stroboscopic tacho for use in generating the capstan speed pulses is described w.r.t. Fig. 4 (not shown). Figs. 5 to 7 (not shown) illustrate methods of deriving sprocket pulses.
Patent GB-348381-A (GB)
Title: Improvements in and relating to apparatus for the manufacture of insulation tape
IPC: H01B3/50
Filed: 1930-05-13
Abstract: 348,381. Drying fabrics in long lengths. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitõts Ges.; 2, Friedrich Karl-Ufer, Berlin.) May 13, 1930, No. 14742. Convention date, May 13, 1929. [Class 34 (i).] In the apparatus described in Specification 285,497, [Class 140, Waterproof &c. fabrics], there is interposed between the impregnating device and the cutting device a drying device comprising a number of nozzles which direct streams of air on to the fabric, and suction nozzles which draw off the vapour of the solvent used in the impregnating composition. The fabric is drawn from a roll b, coated on one side with composition e by passage between a blade d and a roller c, passes through a drying oven f, is coated on the other side by a blade d<1> and roller m, and then passes again through the oven. On emerging, the fabric passes over a water-cooled roller o, near which is a suction pipe p which draws off the vapour of the solvent. The fabric then passes over guide-rollers and past nozzles connected to a pressure pipe y which direct streams of air on to both sides of the fabric.
Patent GB-1127947-A (GB)
Title: The purification of parasporal inclusions from varieties of bacillus thuringiensis
Inventor: MURRAY EDWARD DONALD
IPC: C12P1/04
Filed: 1966-04-04
Abstract: 1,127,947. Insecticide comprising parasporal inclusions from varieties of bacillus thuringiensis. JOHN LABATT Ltd. 29 March, 1967 [4 April, 1966], No. 14861/66. Heading A5E. [Also in Division C6] Parasporal inclusions in a crude suspension of a variety of Bacillus thuringiensis are recovered and purified by mixing the crude suspension with a volatile organic solvent (carbon tetrachloride or chloroform), emulsifying the mixture obtained, breaking the emulsion to form three phase layers, separating the top layer from the other two layers and isolating parasporal inclusions from the top layer by filtration. According to an Example, pure cultures of Bacillus thuringiensis var. thuringiensis were grown on nutrient agar After cellular contents had been released by normal lysis, the agar plates were washed with water and an initial concentration was accomplished by centrifuging, which precipitated remaining vegetable cells, cellular debris, spores and an assortment of crystals of varying sizes. This precipitated mass was then lyophilized. A standard working suspension of 0.5% w/v was made with water and stirred gently for 2 hours at 35‹C in order to complete cell lysis. One and a half volumes of chloroform were added to the suspension and the mixture was subjected to vigorous agitation on a vortex mixer for 60 seconds when a stable emulsion formed. The emulsion was broken by centrifugation at 350 G and a three phase system resulted. The top layer was filtered to separate aggregates of cells, cellular debris, spores and parasporal inclusions from single parasporal inclusions (or smaller sizes) which passed with the filtrate. A volume of water equal to the volume of the upper layer that had been previously withdrawn, was added to the other two phases. Once again a three phase system resulted from centrifugation, and medium and larger sizes of parasporal inclusions were isolated from the top layer. The larger forms of parasporal inclusions were further recovered by repeating the extraction process for a third and fourth time. The four filtrates containing the isolated parasporal inclusions were combined and lyophilized. This purified preparation possessed a high degree of insect toxicity. Further Examples are directed to the recovery and purification in a similar manner of parasporal inclusions from crude suspensions of Bcaillus thuringiensis var. Sotto and Bacillus thuringiensis var. entomocidus.
Patent GB-239940-A (GB)
Title: Improvements in and relating to rotors of mercury bath electricity meters
IPC: G01R11/00
Filed: 1924-06-19
Abstract: 239,940. Ferranti, S. Z. de, and Ferranti, Ltd. June 19, 1924. Drawings to Specification. Alloys.-According to the Provisional Specification, the collet of a disc rotor of a mercury bath electricity meter is made of an alloy of 88 per cent of aluminium and 12 per cent of copper.
Patent GB-878047-A (GB)
Title: Improvements in dye jigs
Inventor: TOMLINSON NORBERT
IPC: D06B3/32
Filed: 1959-05-01
Abstract: <PICT:0878047/IV(c)/1> <PICT:0878047/IV(c)/2> In a dye jig in which fabric is passed from one roller to another and back again under a roller immersed in the dye liquor, the two rollers are driven through eddy current couplings from constant speed shafts driven in opposite directions and the fabric passes under the immersed roller, which drives a generator to provide a speed regulator.  In the Figures, the fabric is passed between rollers A and B and under roller Y immersed in the dye-bath J. Rollers A and B are driven by shafts E and F, rotating in opposite directions and at constant speed, through eddy current couplings C and D, respectively, while the generator Z is driven by roller Y, the current generated being used to regulate the speed of the driving roller.  A change-over switch is provided for changing the supply conditions to the eddy current couplings and consequently reversing the direction of travel of the fabric.  A variable potentiometer is also provided controlling the energization of the couplings.
Patent GB-494703-A (GB)
Title: Improvements in flow regulating devices for fluids
IPC: G05D7/01
Filed: 1937-05-28
Abstract: 494,703. Valves. BRUGMA, A. J. May 28, 1937, No. 14925. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 29, 1937.] [Class 135] A flow-regulating valve comprises a hollow balanced valve member 10 co-operating with seatings 12, 13 and attached to a piston member 11. The piston 11 is subjected on its bottom and top sides respectively to the differential pressures across a setting valve 4 arranged in front of the valve proper 10 and adjusted to regulate the flow required. The valve 10 assumes a balanced position under its weight and that of the piston 11 acting against the pressure difference corresponding to the flow of the fluid, and any variations in the flow due to pressure fluctuations produce adjustments of the valve to bring the flow back to normal. In a modification the setting valve and the controlling piston are arranged on the outlet side of the valve proper and in another modification a single-seated valve is used. The controlling piston may be replaced by a diaphragm or bellows.
Patent GB-758768-A (GB)
Title: Improvements in or relating to processes of preparing vegetable oil bearing materialfor solvent extractions
Inventor: GASTROCK EDWARD ALVIN
IPC: C11B1/04
Filed: 1954-05-21
Abstract: A vegetable oil-bearing material is prepared for solvent extraction by heating the material to 140-235 DEG F., adjusting the moisture content to 10-26 per cent in the early stages of the heating and reducing the moisture content in the latter stages of the heating, continuing the heating until the oil is easily extractable and the fine particles agglomerated, and finally reducing the temperature with further reduction of moisture content to cause the material to assume a crisp condition.  The first stage of conditioning the material with adjustment of moisture content is effected at a temperature between 140 DEG  and 210 DEG F., the succeeding reduction of moisture content is effected above this temperature at not more than 235 DEG F.  In the first reduction in moisture content, the content is reduced below 18 per cent and in the final stages preferably to between 6 and 12 per cent.  The moisture content may be adjusted by spraying with water, steaming, &c.  The cooked materials are crisped by exposure to a cool atmosphere, conducive to evaporation of moisture, until the temperature falls below 160 DEG F. The vegetable material may comprise seeds of high oil content such as cottonseed, flaxseed and many other listed, seeds of low oil content such as soya beans and others listed, and also materials other than seeds such as rice bran, tung nuts and others listed.  The vegetable material may be prepared for treatment in flake or particle form of dimension mainly not over 0.016 inches.  The crisp material may be screened through no larger than a four mesh screen and the particles retained thereon are reduced in size.  The so prepared material is then mixed with a solvent to form a slurry, the slurry is filtered to form a cake, the cake and further solvent are again mixed and filtered and the mixing and filtering are repeated a number of times, preferably in countercurrent using solvents containing successively small proportions of oil.  The solvents specified comprise hexanes, e.g. methyl pentanes, and trichlorethylene.  A continuous horizontal rotary vacuum filter with a number of spaces may be used.