baber/WOPTO huggingface dataset:
Patent GB-669539-A (GB)
Title: Simultaneous multi-colour television system
IPC: H04N11/12
Filed: 1947-11-20
Abstract: 669,539. Television. RADIO CORPORATION OF AMERICA. Nov. 20, 1947 [Dec. 7, 1946], No. 30828/47. Drawings to Specification. Class 40 (iii). In a colour television system the highfrequency components of all the colour signals are combined in suitable amplitude and transmitted in a predetermined frequency band together with the low frequency components of one colour signal the low frequency components of the remaining colour signals being transmitted separately. An object of the invention, which is to reduce the frequency band normally employed in a colour television system, is achieved by allotting to the combined high frequency components a band-width of the order of that occupied by the high frequency components of each of the individual colour signals thus effecting a saving of bandwidths equal to twice that normally occupied by the latter components. In one embodiment the high-frequency (i.e. 0.8 to 4 Mc/s.) components of separately produced Red, Green and Blue colour component signals are combined together and separated from the low frequency components by electronic mixing and high-pass filter means and then modulated on to a main carrier wave together with the low frequency components of the " green " signals, the low-frequency components of the " red " and " blue " signals being modulated on to separate main carriers or on to sub-carriers which then modulate the main carrier wave. The combined high-frequency signals and the low-frequency components of the " green " signals may share, equally, the total bandwidth normally occupied by the high-frequency components and combined signals of intermediate frequency range may be transmitted in the channels devoted to the low-frequency components of the " red " signals. Specifications 666,480, 666,481, 666,482 and 669,538 are referred to.
Patent GB-721939-A (GB)
Title: Improvements in or relating to safety valve for releasing both positive and negativeexcessive pressures
IPC: F16K17/19
Filed: 1952-12-04
Abstract: 721,939. Fluid-actuated valves. UNITED DAIRIES (WHOLESALE), Ltd., MATTHEWS, P., and SHEPPHEARD, G. E. Dec. 4, 1953 [Dec. 4, 1952], No. 30837/52. Class 135. A safety valve for releasing positive and negative excessive pressures from a vessel such as a transportable tank comprises a seating 10 formed on a wall of the tank or vessel or on a neck or other part 11 fixed thereto, the face of which seating is directed away from the interior of the tank or vessel and encircles an opening, a disc or plate 14 of flexible material arranged over the seating 10 and having a central port 15 and an uninterrupted periphery, a closure member 22, for the port disposed on the opposite side of the disc or plate to the seating and secured to the wall of the tank or to the neck 11. The closure member 22 is formed as a boss inside a cap 16 detachably secured to the neck 11. The seating 10 is formed at the base of a recess 13 in the end of the neck 11 which is threaded at 12 for connection to the tank. The recess 13 prevents lateral movements of the disc 14. The cap 16 is pivoted by a bolt 19 to two arms 18 projecting from the neck 11. A stainless steel washer 24 engages a shoulder 23 on the neck 11 and the cap 16 is held in the closed position by a magnet 21 mounted between the washer 24 and a projection 27 and held in place by a plate 28 secured to the projection 27. The magnet co-operates with a soft iron armature 29 welded to clips secured to the cap 16. The space 25 below the cap 14 is open to the atmosphere to allow excess fluid to pass out when the disc 14 leaves the seating 10 or to allow air to pass into the tank when the disc 14 is forced inwardly away from the boss 22. The cap 16 may be screwed on to the neck 11 in which case holes are provided through the cap into the space 25 and the cap is tethered by a chain having a swivel anchorage.
Patent GB-1345659-A (GB)
Title: Cheese making
IPC: A01J25/00
Filed: 1972-06-30
Abstract: 1345659 Cheese making NEW ZEALAND DAIRY RESEARCH INSTITUTE 30 June 1972 [13 July 1971] 30857/72 Heading A2B A method (and a corresponding apparatus) for making cheese includes the steps of elevating drained curd to the upper part of a curd fusion chamber having horizontal cross sections which diminish gradually in area between the upper part and a lower discharge part, allowing the curd to remain in part of the chamber for a time sufficient to achieve a desired pH in the curd, discharging the curd from the discharge part such that the first admitted and is first discharged, consolidation and some flow of curd occurring in a substantially vertical direction during passage of curd through the chamber. Whey may be drained from the curd in the chamber, such as by perforated pipes surrounded by the curd or to channels communicating to the walls of the chamber. The curd may be discharged via nozzles of desired shape and be cut into blocks for further treatment such as milling, preferably oriented such that milled fingers of curd having their length parallel to the direction of curd flow are obtained. Alternatively the discharged curd may be forced through cutters to cut it into bars which are then cut into fingers by transverse cutters. The converging surfaces of the fusion chamber may comprise a low friction material. The chamber may be in the form of a tower having at least one downwardly inwardly tapering section. The curd may be elevated pneumatically, and is preferably fed into the chamber with some horizontal velocity so that the fed curd descends gently onto the accumulated curd. To empty the chamber air under pressure may be employed. The process may be operated either as a continuous or batch process.
Patent GB-1502001-A (GB)
Title: Method and apparatus for bending metal pipes bars or rods
IPC: B21D7/025
Filed: 1975-07-23
Abstract: 1502001 Bending tube or rod DAIICHI KOSHUHA KOGYO KK 23 July 1975 [30 May 1975] 30879/75 Heading B3E An elongate metal workpiece to be bent is advanced through an annular heater, then immediately through a cooler, part of the workpiece being secured to an arm pivoted about an axis lying in the place of the heater, and means is provided to alter the angle between the direction of feed and the line from the arm axis to the heated portion of the workpiece, so that the workpiece is bent to a constant radius. In Fig. 3, the direction of feed of a pipe is displaced by an angle # 2 , increasing the bending occurring at the heating point A, so that after the pipe is released, it springs back to a bend radius R corresponding to the length of the arm, or to a lesser radius if required. In Fig. 4, the heater 5 and heating point are displaced along the axis X-X<SP>1</SP> of pipe feed to a point A<SP>1</SP>, AA<SP>1</SP> subtending angle # 2  at O, the arm axis. In each case, the amount of correction applied may be automatically adjusted to correct for detected departure from the required curvature. Fig. 6 shows a device for detecting deviation from the required curvature, rolls 119 and 120 on detector 117 being applied to the pipe by hydraulic cylinder 122, while the position of roll 118, compared with that of an adjustable datum 126, operates a device 129, producing a control signal 130. This signal may be used to displace feed rolls laterally of the pipe to produce appropriate correction of the degree of bending, or may shift the rolls along the pipe while applying a constant load to vary the displacement of the rear end of the pipe.
Patent GB-637601-A (GB)
Title: Improvements relating to fishing rods
IPC: A01K87/06
Filed: 1948-01-21
Abstract: 637,601. Fishing. PALMER, P. C. Jan. 21, 1948, No. 30890/47. [Class 48] A combined handle and reel housing for a fishing rod comprises a handle tube or rod adapted to be connected at one end to a fishing rod 28 and at the other end to a housing having a hollow portion adapted to contain the reel and disposed below the handle tube or rod. The housing is cast or moulded in halves. The handle tube or rod is fitted with a cork sleeve and an arm 22, the lower end of which forms a line guide. A line guard 34 is pivoted to the arm at 33 and clips on to the reel housing. A spring-loaded, pivotally-mounted spike 47 is provided at the rear of the housing by which the rod may be supported in an erect position. A knurled head 44 is fitted in an opening 43 in the housing to enable the reel mechanism to be held or actuated by hand. In a modification the line guard is omitted. Specification 637,602 is referred to.
Patent GB-882100-A (GB)
Title: Organosilicon compounds and processes for producing the same
IPC: C07F7/08
Filed: 1957-10-03
Abstract: Dithiocarbamyl silicon compounds containing the group <FORM:0882100/IV (a)/1> wherein a is an integer of at least 3 and the indicated free bonds of Si are attached to substituted or unsubstituted hydrocarbon radicals, hydroxy, alkoxy or aryloxy radicals or to another Si atom through an oxygen atom, at least one of the free bonds being attached to a hydrolyzable radical or to an oxygen atom, may be made by reacting the corresponding aminoalkyl silicon compound with CS2.  The starting materials and end-products are silanes or siloxane homo- or co-polymers and may contain Si-bonded alkyl, aryl or aralkyl radicals.  The reaction is preferably conducted in the presence of a solvent, e.g. water, benzene, toluene, ether, petroleum ether, or ethylene glycol dimethylether, and at a temperature below the boiling point of CS2, e.g. from -10 DEG  to 40 DEG C.  The reaction may also be conducted in the presence of an organic or inorganic base to yield a salt of the desired compound.  In typical Examples (1) CS2 was slowly added to a mixture of a dimethylsiloxaned -aminobutylmethylsiloxane copolymer, aqueous NaOH and ethyleneglycol dimethylether at 25 DEG to 35 DEG C. to give the sodium salt of the corresponding siloxane dithiocarbamate which reacted with cobalt chloride to give a viscous, yellow brown oil of cobalt organosilyldithiocarbamate; (2) CS2 was reacted with g -aminopropyltriethoxysilane in anhydrous ethyleneglycoldimethylether containing potassium silanolate to yield (C2H5O)3Si(CH2)3NH.CS.SK which reacted with nickel chloride to give the corresponding nickel salt.  Uses: for extracting metals from aqueous solutions of salts thereof; as fungicides, insecticides and sizes; as lubricants or modifiers therefor; for modifying siloxane resins and elastomers. Specifications 882,054 and 882,096 are referred to.  Reference has been directed by the Comptroller to Specifications 684,296, 769,498 and 795,894.
Patent GB-358296-A (GB)
Title: Means for treating sand or like dressed clay slab in the manufacture of bricks and such like
IPC: B28B11/08
Filed: 1930-10-16
Abstract: 358,296. Sanding bricks during moulding. BAILEY, H. H., Springfield, and BAILEY, J. E., Grundy Hill House, both in Heaton Mersey, Lancashire. Oct. 16, 1930, Nos. 30943, 31951, and 38495. [Class 87 (ii).] Apparatus, of the kind in which angularlydisplaced reciprocating brushes are used to apply sand to the top and ends of an extruded clay bar, is modified by making the top brushes act at a different time to the end brushes. The resilientlymounted end brushes d<2> are reciprocated by bellcrank levers j connected by links k to the eccentric m, the top brush D<2> being similarly mounted and connected directly to the eccentric, so that a downward movement of the strap l forces the top brush downward and withdraws the end brushes and vice versa. The term brushes comprises pressing and rubbing appliances and includes smooth - faced discs, perforated metal discs, or discs provided with detachable faces carrying punched-up protuberances, toothed or wire brush surfaces or combinations of these forms. Fig. 7 shows one construction in which a metal annulus with punched-up projections d<9> is secured detachably to a skeleton holder having radial holes in its rim to deliver surplus sand and trapped air. All the brushes are displaced angularly between reciprocations by fixed pawls i, I which engage serrated flanges on the brushes at the outer ends of their reciprocating movement. Adjustment is provided for at points h<2> and m<5>. Sand is supplied from a hopper p through flexible pipes to each brush, that delivered to the top surface being spread by a diagonally-mounted brush u before being pressed in by the brush D<2>. Sand not used falls into the hopper r, from which a hand-controlled door r<1> leads to the perforated screen s<1> in which a rotary brush forces the small particles through the screen and delivers the remainder to the outlet s<2>. A conveyer t<1> delivers the screened sand to a bucket elevator o<1> which redelivers it to the hopper p. The lower edge of the extruded bar is trimmed by a fixed knife v.
Patent GB-1512514-A (GB)
Title: Microphone assemblies
IPC: H04R5/027
Filed: 1974-07-12
Abstract: 1512514 Directional microphone assemblies NATIONAL RESEARCH DEVELOPMENT CORP 1 July 1975 [12 June 1974] 30977/74 Heading H4J At least four microphone units are located at certain points on the surface of a (notional) sphere and are connected to a matrix circuit through gain devices in such a way that the outputs of the microphone assembly approximate to that which would be obtained by a plurality of coincident microphones having directional response curves which are spherical harmonics. The locations of the microphone units are at "points" corresponding to mathematical rules of approximation of multiple integrals over the surface of a sphere. Such approximations rely on equating a multiple integral of a function over the surface to a summation of discrete integrals at the points with weighting factors corresponding to those points. The approximation rules must be capable of integrating over the surface all spherical harmonics of order up to twice the highest order spherical harmonic for which a directional response curve is required. The gains employed in coupling the microphone units to the matrix are of the weighting factors of the integration points and the magnitude of the spherical harmonic in the maximum response direction of the microphone unit. In the embodiment of Fig. 1, four units 12A, B, C, D are located at the centres of the faces of a tetrahedron 10 shown enclosing a sphere and contained within a cube 14. The microphone units A-D respectively correspond to directions left back down, left front up, right front down, right back up and have cardioid or hypercardioid responses 1 + K cos # where K is a constant for each frequency. The microphones are connected through amplifiers (24, 26, 28, 30, Fig. 2, not shown) having equal gains (since the tetrahedron is a regular solid) to a matrix circuit 32 producing outputs as follows: F is the omnidirectional signal of zero order spherical harmonic whilst E,G,H are first order. In order for the assembly to approximate a "figure-ofeight" response in which the maximum gain is 52 times the omnidirectional gain so that all four channels E-H handle similar signal levels, the ratio of the gain of the omnidirectional signal F to that of the first order signals, E, G, H is #6 at middle frequencies, e.g. 1 KHz. Expressions are quoted for equalization factors W for the signal F and X for the signals E,G,H which ensure that the energy response of all four channels is independent of frequency and phase. The equalization factors are employed for frequencies below 1 KHz but for higher frequencies the gain of the signal F is limited to #3 times that at 1 KHz and the gain of the signals E, G, H is limited to 1/#3 times that at 1 KHz. It is stated that there are known filter circuits which have such gain responses. A plurality of microphone units may be located on different radii shells to handle different frequency bands. The output channels E, G, H represent frontback, left-right and up-down information respectively.
Patent GB-502402-A (GB)
Title: Improvements in or relating to belt conveyers
IPC: B65G17/02
Filed: 1938-10-26
Abstract: 502,402. Endless-belt conveyers. INTERNATIONAL COMBUSTION, Ltd., DAVIDSON, G. W., and HERBERT, S. L. Oct. 26, 1938, No. 30994. [Class 78 (i)] In belt conveyers of the kind which, over a portion of their run, are troughed for the purpose of containing a liquid, the troughed portion is supported by curved crossmembers attached to a pair of parallel spaced endless belts or chains. The cross-members 6, Fig. 2, are connected by plates 5 to the links 2 of endless chains 1 which carry rollers 4 running on tracks 20. The chains are driven by a pair of wheels 8. The belt 7 rests on the cross-members 6 on the horizontal portion of its upper run, and is driven from a pulley or sprocket 12 on the axle of the take-up wheels 11 of the chains 1 through a belt or chain 13. The belt may be driven directly by the members 6.
Patent GB-989549-A (GB)
Title: Production of thioethers
Inventor: CAMPBELL JOHN ROBERT
Filed: 1962-08-13
Abstract: Mono- and di-thioethers are prepared by reacting (a) a hydrocarbon or substituted hydrocarbon disulphide, (b) a hydrocarbon or substituted hydrocarbon containing one or more halogen substituents and (c) copper in a polar solvent which boils above 125 DEG  C.  The preferred reactant (b) is R1(X)n, where R1 is a hydrocarbon or substituted hydrocarbon radical, X is chlorine, bromine or iodine and n is 1 or 2, and the products are of the type R1-S-R, if n=1, or R-S-R1-S-R, if n=2, where R is the hydrocarbon residue of the disulphide.  If there are more than 2 halogen substituents in reactant (b) those in excess of 2 do not react but appear in the final product. The substituent in the hydrocarbon radicals may be alkyl, alkoxy, nitro, cyano, carboxy or carbalkoxy.  Numerous starting materials are specified.  The preferred solvents are of the type <FORM:0989549/C2/1> where A is hydrogen or a substituted or unsubstituted aliphatic araliphatic or aromatic radical and B and C are substituted or unsubstituted aliphatic, araliphatic or aromatic radicals, or together with the nitrogen form a 5- or 6-membered heterocycle or A and B together with the nitrogen and carbonyl group form a 5- or 6-membered heterocycle.  Other suitable solvents are glycol, quinoline and dialkyl anilines.  Numerous mono- and di-thio ethers are specified.
Patent GB-1348283-A (GB)
Title: Fishing reel
IPC: A01K89/027
Filed: 1971-07-02
Abstract: 1348283 Band brakes ETABS CARPANO & PONS SA 2 July 1971 [8 July 1970] 31062/71 Heading F2E [Also in Division A1] In a fishing reel of the type having a line spool stationary while casting but able to rotate when sufficient torque is created by tension in the line, the torque limit is set by knob 10. The flattened portion 1a of the spindle carrying the line spool slides within and rotates with a cylinder 3 journalled in the casing 4 and around bearing 5 which carries grease nipple 6. A toothed wheel 12 is secured to cylinder 3 and forms part of a conventional sound alarm mechanism 12-15. Braking is provided by a sleeve 8 which is brought into frictional engagement with cylinder 3 by turning knob 10 to move lugs 8a, 8b together. Knob 10 is fixed to the threaded end of a rod 9 which carries a nut 18 having lugs 18a sliding in grooves 19. Turning knob 10 to compress spring 10 urges lug 8b harder towards the other lug. In another form (Fig. 5, not shown) the spring 11 acts between the casing and knob 10 and the rod 9 is threaded into an insert in lug 8b. In both forms the knob may be pushed in to release the frictional engagement. To prevent overcompression of spring 11, rotation of knob 10 is restricted by one or more washers 22 carrying lugs 22a, 22b which engage stops on the easing 4 and the knob 10.
Patent GB-855763-A (GB)
Title: Improvements relating to punch presses for forming metal shells, such as electric lamp bases
IPC: B21D24/00
Filed: 1959-09-15
Abstract: 855,763. Cupping. GENERAL ELECTRIC CO. Sept. 15, 1959 [Sept. 17, 1958], No. 31452/59. Class 83 (4). A press for progressively drawing flanged lamp - base shells from metal strip comprises a frame carrying stationary dies and reciprocable punches, a floating stripperplate mounted on the last redraw punch of the press and a stripper plate control-mechanism including reciprocable pins which intercept the stripperplate on the downstroke of the said punch, and means connected to said punch-actuating means for lowering the pins and the stripper plate in timed sequence with the said punch to press the flange against the surface of the die adjacent the die opening as the punch approaches its lowermost position to prevent the formation of wrinkles in the shell flange, said mechanism also including means for raising the stripperplate on the upstroke of the punch. A lower bed-plate 1 secured to the press frame 2 includes the dies and an upper bed-plate 4 carries the punches 7. The dies are arranged in gangs at stations spaced along the path of a metal strip 9 from which the shells are formed in a progressive manner as the strip is moved step-by-step through the press. At the two last redrawing stations the partially-formed shells 8 are attached to the strip by thread-like parts 11 (Fig. 3). Each die has an ejector-pin 12. The stripper-plate 13 is floatingly hung below the upper bed-plate on rods 14 and is urged downwardly by a pneumatic cylinder 15 acting on rods 20. The stripper-plate controlmeans comprises a plurality of verticallymovable stop-pins 21 actuated by transversely- 'movable spring-loaded wedges 22 controlled in timed sequence with the punches by toggle mechanism actuated by cam members 32 attached to the upper plate 4. The relative positions of the punch, die and stripper-plate during the drawing operation is shown in Fig. 2. Shoulders 35 on the cam members 32 assist the springs 38 in returning the wedges to their initial position. The stripper-plate serves at the press-station preceding the last redrawing station merely to strip the shells from the punches 10 since wrinkles do not occur in the flanges at that station. In a modification the wedges form part of a slide member 41 movable in guideways in the lower bed-plate 1, the slidemember being reciprocated by a cam-operated slide-bar 52 through toggle links 44. The cam 59 is chain-driven from a crank-shaft 64 rotated by the main press drive means. The driveshaft 64 has an off-set portion 65 which, through the crank 66 and yokes 67, reciprocates the rods 3 attached to the upper bed-plate 4 of the press.
Patent GB-618127-A (GB)
Title: Improvements in or relating to the proving of gas and like meters
IPC: G01F25/00
Filed: 1946-10-23
Abstract: 618,127. Pressure gauges. PARKINSON & COWAN (GAS METERS), Ltd., ALEXANDER, A., and GREEN, K. R. Oct. 23, 1946, No. 31502. [Class 106 (ii)] A pressure absorption gauge for use in testing gas or other meters comprises a manometer tube a containing electrically conducting liquid and two internal contacts d, e, one end f of the tube being open to the atmosphere and the other end being connected to a pipe b leading from the meter c to a testing bell. Thus, a predetermined absorption pressure in the meter will cause the conducting liquid to bridge the contacts and thus actuate an indicator via leads g. The contacts may be adjustable in position and the indicator may be operated by a relay which remains activated until re-set.