baber/WOPTO huggingface dataset:
Patent GB-725252-A (GB)
Title: Improvements in or relating to the measurement of the viscosity of a liquid
IPC: G01N11/12
Filed: 1953-08-12
Abstract: 725,252. Viscosimeters. BRABENDER, C., and BRABENDER, C. W., [trading as BRABENDER, O. H., [Firm of]]. Aug. 12, 1953 [Aug. 21, 1952; June 22, 1953], No. 22254/53. Class 106 (2). A device for measuring the viscosity of a liquid comprises a vertical tube 1, Fig. 1, containing the liquid, a body 3 free to fall in the liquid, a coil 2 wound round the lower end of the cylinder 1, and a time-recording instrument adapted to be operated as soon as the body starts falling through the liquid and to be stopped when an iron ring 4 on the body 3 enters the field of the coil 2. The body 3 has a head carrying an iron disc 5. The body 3 is raised from the bottom of the tube 1 by means comprising a permanent magnet 12 movable within the cylinder 1 and raised and lowered therein by an electric motor 10 acting through a linkage system 11. Alternatively, Figs. 3 and 4, the body 3 may be raised from the bottom of the tube 1 by an iron ring 18 surrounding the tube 1, said ring supporting a plurality of permanent magnets 19 and being raised and lowered by an electric motor acting through a linkage system 20. The tube 1 may be parallel with a pipe-line and be connected thereto through magnetically controlled valves 6 and 7, Fig. I, which are opened only whilst the body 3 is. being raised from the bottom of the tube 1. The device thus affords a continuous measure of the viscosity of liquids produced or used in the course of a manufacturing process. The body 3 is hollow and has a closable opening enabling it to be filled with liquids of different specific gravity. Recording-apparatus. At the moment that the body 3 is disengaged from the magnet 12, a mercury switch tube starts a time-recording instrument and allows a slide 16, Fig. 2, to move a scriber 17 up a recording tape 15. When the falling body 3 enters the field of the coil 2 the movement of the slide 16 ceases. The height reached by the slide 16 corresponds to the falling time of the body 3. The tape 15 is advanced after every measuring operation.
Patent GB-225306-A (GB)
Title: Improvements in folding mechanism for printing presses or the like
IPC: B65H45/16
Filed: 1923-09-04
Abstract: 225,306. Marks, E. C. R., (Goss Printing Press Co.). Sept. 4, 1923. Folding paper. - In folding- mechanism for printing-presses or the like of the type in which the sheets to be folded are carried on the periphery of a rotary folding-member which alsc carries a rotary tucker blade cooperating with a pair of rotating folding-rollers, an adjustable connection is arranged between the tucker blade and a member immediately associated therewith in the operation of the blade, permitting direct adjustment of the blade relative to the member in order to change its relation to the folding-rollers. Each pair of tucker blades 15, 16, Fig. 7, is carried on a shaft 12 mounted in bearings 13, Fig. 6, on the folding- cylinder 1 and having at one end a fixed disc 20, Figs. 2, 4 and 6, which is rotatable in a recess in a head 21 on the cylinder 1. The disc 20 carries a screw bolt in a lug 28, the top and bottom of the bolt bearing against the sides 30, 31 of a recess in the head 21, so that rotation of the bolt turns the disc 20 round in its recess and so adjusts the angular position of the tucker blades relatively to the head 21, and therefore to the folding-rollers 70, 79. Each head 21 is provided at either end with two pins or rollers 33, Fig. 6, engaged by a slotted cam disc for giving a half revolution to the shaft 12. Fig. 2 shows the arrangement for adjusting one folding- roller 79 to suit the nip of the rollers to the thickness of the sheets. The roller 79 is supported on spring-pressed arms 90 which may be retracted by turning a hand-wheel 108 to interpose wedges 100 between retaining nuts 102 and the ends of fixed cylinders 88. Specifications 225,304 and 225,305 are referred to.
Patent GB-643736-A (GB)
Title: Improvements in or relating to ammunition projectiles
IPC: F42B12/10
Filed: 1947-08-12
Abstract: 643,736. Ammunition projectiles. SAGEB, SOC. ANON DE GESTION ET D'EXPLOITATION DE BREVETS. Aug. 12, 1947, No. 22355. Convention date, Oct. 3, 1941. [Class 9 (i)] A projectile has a body 10 containing an explosive charge 11 having a conical re-entrant cavity into which extends a hood 25 preferably of mild carbon steel and having a flange engaged between the body 10 and a member intermediate between the body 10 and a hollow ballistic nose 36. Into a screw-threaded plug 13 closing the base of the projectile is screwed a base fuze 15 containing within a housing 16 an inertia body 17 held by a spring 18 and pivotally supporting a centrifugallyactuated safety firing pin assembly 19 carrying the firing pin F. The forward part 20 of the fuze housing contains a primer P and a booster charge 21 held in place by a detent plate 22. At the forward end of the body 10, abutting against a shoulder 30 is screwed in the intermediate member 35 having a radial flange 37 against which rests the ballistic cap 36 of steel, 7 to 10 mm. thick for a 75 mm. calibre projectile. To fit the cap, which is welded in position, the intermediate member is tapered externally and is tapered internally to guide the collapsing hood after impact of the projectile with the target. The internal wall 40 of the intermediate member is chamfered rearwardly to form a surface 41 inclined at 45 degrees to the axis of the projectile. A radial flange 45 on the hood 25 is held between the member 35 and the shoulder 30. For a projectile having a muzzle velocity of 800-1,000 f.s. the length of the front portion, i.e. the cap and intermediate member combined, is about 2 calibres and the wall 40 is one-third to threequarters of the length of the hood. The intermediate member is one-third of the length of the front section. The Specification as open to inspection under Sect. 91 comprises also modifications of the attachment of the ballistic cap to the body of the projectile. It also describes a hood which varies in thickness from apex to base. This subject-matter does not appear in the Specification as accepted.
Patent GB-1273360-A (GB)
Title: Color reproduction system
IPC: H04N1/48
Filed: 1969-05-01
Abstract: 1,273,360. Facsimile apparatus. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 1 May, 1969 [2 May, 1968; 14 May, 1968; 4 June, 1968 (5)], No. 22374/69. Heading H4F. [Also in Divisions G1 and G4] In a system for the reproduction of an original print by the subtractive or additive method of colour reproduction, the original is viewed photo-electrically to produce three primary colour signals and various colour corrections are carried out on these signals before reproduction is carried out. The photo-electric detector circuit includes means to chop the detector outputs and to increase the S/N ratio. Light transmitted through or reflected by the original 1 is directed through a slit 7 to a three-part dichroic prism arrangement 8 having two dichroic planes 9, 10 by which green, blue and red light are directed via colour fillers 11 to photomultipliers 12 G , 12 B  and 12 R  respectively Fig. 2C (not shown). The resultant electric signals are passed through substantially identical colour correction channels. Considering the red channel only, the signal is initially chopped in circuit 13 R  and amplified by circuit 14 R . After rectification in 15 R , the signal is rendered logarithmic by circuit 16 R  so that colour correction operations may be performed The first two corrections are for γ (contrast) and highlight level and are performed by circuits 17 R , 18 R . In the masking circuit 19, in which signals from all three channels are combined, errors in the signals due to defects in the dichroic system, filters, sensitive materials used in reproduction, printing ink colours, &c., are removed. The operation involved for the red channel is subtraction of voltages derived from the green and blue channels from the red signal. In under colour removal (UCR) circuit 20 R , the amount of black in the red signal above a predetermined level set by circuit 202 is subtracted from the signal. The output of 20 R  is amplified in 21 R  and a selected colour channel output can be passed through anti-logarithmic circuit 22 to derived a printing (exposure signal. A black print signal may also be fed to anti-logarithmic circuit 22 being derived from the marking circuit 19 and being connected by its own highlight, γ and UCR circuits. The various circuits are detailed in Figs. 2a and 3-10 (not shown) with explanatory diagrams. The photomultiplier circuit, Fig. 2a (not shown), includes an astable multivibrator, (13a) generating a pulse waveform which is differentiated before supplying flip-flop (13b) which supplies the photomultiplier final dynode (39). Cancellation of induced noise is by applying a further rectangular wave to the anode through a capacitance (Co).
Patent GB-1152124-A (GB)
Title: Apparatus for the Electrolysis of Molten Electrolytes
IPC: C25C3/12
Filed: 1967-05-15
Abstract: 1,152,124. Cells for electrolysis of molten oxides. SWISS ALUMINIUM Ltd. May 15, 1967 [May 17, 1966; April 28, 1967], No.22462/67. Heading C7B. In a cell for the electrolysis of molten oxides, e.g. alumina in the production of aluminium, the anode is separated from the melt being electrolyzed by a layer of oxygen-ion-conducting material which is non-permeable to and resistant to the melt at the temperature of the electrolysis, so that oxygen ions may diffuse through the layer and be discharged at the anode with the formation of oxygen gas. The oxygen-ion-conducting material may be cupshaped, and positioned in the cell with its base extending beneath the surface of the melt, and this structure may contain a liquid anode, e.g. molten silver; a secondary electrolyte e.g. molten lead oxide, into which extends an anode Fig. 3 (not shown) or the inner surface may be coated with a porous material which forms the anode e.g. platinium black Fig .1 (not shown). Alternatively the anode may comprise a block of porous material the lower face being provided with a layer of ion permeable material contacting the surface of the melt, Fig. 2 (not shown). In cells having a plurality of bi-polar electrodes the anodic face of each electrode may be covered with oxygen-ionpermeable material, the cathodic part of the electrode being formed of a material which is resistant to the fused melt, Fig.4 (not shown). Cells may also be formed having a plurality of anodes depending into said melt, each being coated with oxygen-ion-conductive material, and provided with conforming cathodes e.g. depending into the melt about said anodes Fig. 6 (not shown) or formed by the base of the cell which is provided with elevated portions 24 which face the sides of the anodes 23, as shown, insulated channels 21 being provided within the base of the cell for withdrawal of aluminium 2 produced.
Patent GB-743753-A (GB)
Title: Improvements in warp knitted fabric with rubber warp threads
IPC: D04B21/12
Filed: 1953-08-14
Abstract: 743,753. Knitting. HALSTENBACH, W., ROSENKRANZ, C. G., PLUTTE, A., and HALSTENBACH, H. Aug. 14, 1953 [Dec. 19, 1952], No. 22472/53. Class 74 (2). Unknitted rubber warp threads 5 are secured in a warp fabric by the bights of a cotton, artificial silk or other covering thread 1 and a thread 3 which is thinner than the cotton or other thread but highly resistant to breaking and somewhat elastically extensible. The thinner thread may be of a synthetic material of the polyamide group such as nylon. The contruction of the fabric may be such that transverse connections of the yarns between the wales may be so positioned as to provide an openwork fabric.
Patent GB-168756-A (GB)
Title: Improvements in shuttles for weaving
IPC: D03J5/24
Filed: 1920-07-29
Abstract: 168,756. Stott, J. H. July 29, 1920. Shuttles.-A threading-slot guard device comprises a spring bar B fixed at E and pressing lightly against the shuttle wall, the bar extending across the threading slot &c. D into a hole K, and being bent downwardly at G, inwardly at H, and outwardly at J. The guard locks the waft into the shuttle eye, and also prevents weft or warp yarns from entering the slot &c. D.
Patent GB-1024004-A (GB)
Title: Manufacture of sliding clasp fastener elements
IPC: B29D5/04
Filed: 1964-06-01
Abstract: 1,024,004. Strip fastenings. YOSHIDA KOGYO KABUSHIKI KUISHA. June 1, 1964 [June 7, 1963; Sept. 16, 1963], No. 22541/64. Heading E2S. [Also in Division B5] Stringers for sliding clasp fasteners, Figs. 1, 2 and 3 (not shown), preferably made of nylon, have loops 35 and 36, 35<SP>1</SP> and 36<SP>1</SP> and 35<SP>11</SP> of substantially rectangular, smoothly curved and pointed configuration respectively. Fastener portions 34, 34<SP>1</SP> and 34<SP>11</SP> are provided and the ends of loops 35, 36 remote from heads 34 are formed in contact with one another, Figs. 1b, lc (not shown). The stringers are formed by means of a guide member 24, Fig. 5, a relatively movable die member 31, having teeth 22, and a fixed spigot 25. From the position shown, the guide 24 is swung in the direction of arrow (B) to bring filament 27 between surfaces 26, 26<SP>1</SP>, Fig. 6 (not shown), of the spigot 25 and a tooth 22 respectively, the guide is then moved linearly to bring the filament beneath the spigot, Fig. 7 (not shown), and is then swung to a substantially upright position to form a coil of the stringer, Fig. 8 (not shown). During the last movement of the guide 24, a clamping member 37, which holds the already formed coils against the rearsides of the teeth 22, and a cover member 38, which prevents the coils rising off the teeth, are retracted so that the guide 24 may be moved in the direction of arrow (E) to bring the filament 27 behind the tooth next in line for coil formation, Fig. 4 (not shown), thereby completing the cycle of movements. Heads 34 are formed on each coil by a reciprocating hammer 29, spigot 25 acting as an anvil. The coil may be subjected to further shaping treatment by dies 40, 41, Figs. 9, 10 (not shown), which engage the open and closed ends of the coils, and the open ends may also be pinched by a roller 42, Fig. 11 (not shown). The resulting coils are of substantially rectangular form, Fig. 1a (not shown). The stringers are removed from die member 31 by means of a wedge-shaped fork member 43, Fig. 12 (not shown). Die member 31 may be electrically heated and the stringer spray-cooled before removal therefrom.
Patent GB-531851-A (GB)
Title: Improved method of and means for regulating the supply of fuel to internal combustion engines
IPC: F02D1/00
Filed: 1939-08-03
Abstract: 531,851. Fluid-pressure servomotor control systems. BAYERISCHE MOTORENWERKE AKT.-GES. Aug. 3, 1939, No. 22569. Convention date, Aug. 6, 1938. [Class 135] [Also in Group XXVII] The torque reaction of an engine operating with injection of liquid fuel, and also the charging pressure of the blower, are used to effect adjustments of the liquid fuel supply. The Figure shows means for measuring the torque reaction comprising lever arms acting on two pistons 1, 2, the movement of which by the engine torque is resisted by oil or other pressure in chambers 5, 6, which are connected by a pipe 7 to a servo-piston 3 connected to the fuel-pump control 12. The charging pressure acts on a bellows 29 connected to a valve 20 controlling the supply of pressure fluid from a pump and reservoir 15 to the piston 3, the piston rod 10 of which is connected by a lever 30 to the casing of the bellows 29. The reservoir 15 is also connected by pipes 16 to the chambers 5, 6, under the control of valves 17, 18 connected to the pistons 1, 2. Opposite sides of the valves 17, 18 are connected by bores 21, 22, and outlets 25, 26 are provided as shown. A toggle device 35 may be arranged between the piston 3 and the pump control 12, and a restriction 36 provided in the pipe 31 connecting the piston 3 to the control valve 20.
Patent GB-276835-A (GB)
Title: Improved box or crate for fruit and vegetables
IPC: B65D85/34
Filed: 1926-09-14
Abstract: 276,835. Tarr, J. M. Sept. 14, 1926. Corner joints; specially-shaped crates made by bending sheet material; lids.-A crate for :fruit &c. comprises upper and lower frame members a, b of wood to which are secured vertical slats of veneer c, the slats at the corners being bent into a curve and secured at the top to the inside of the frame a and at the bottom to the outside of the frame b. The lid, which is formed of crossed strips of veneer, is secured in position by metal strips h which are bent over the upper surface of the lid.
Patent GB-683648-A (GB)
Title: Preparation of organic acid esters of cellulose
IPC: C08B3/06
Filed: 1950-09-14
Abstract: Cellulose esters of aliphatic acids containing 2-4 carbon atoms in the molecule are obtained by subjecting cellulose, which has an initial moisture content of at least 5 per cent, to a pretreatment in two stages, followed by esterification in two stages with the anhydride of an aliphatic acid containing 2-4 carbon atoms in the molecule, in the presence of a solvent for the cellulose ester formed; the first stage of pretreatment is effected with a lower aliphatic acid (1-4 carbon atoms in the molecule) which is free from or contains at most 2 per cent (of the dry weight of the cellulose) of esterification catalyst for at least 2 minutes; the second stage is effected with further lower aliphatic acid containing esterification catalyst in amount 2.5-15 per cent (of the dry weight of the cellulose) for at most 15 minutes; the first stage of esterification lasts for 1-10 minutes and is effected at a temperature rising to and maintained at 15-25 DEG  C.; and the second stage of esterification is effected at a temperature rising to and maintained at 30-65 DEG  C. until the esterification is complete. The lower aliphatic acid may be acetic, propionic, or butyric acid, and the esterification catalyst may be sulphuric acid.  The pretreating liquid may be sprayed on to the cellulose or applied by means of rollers.  The cellulose may be pretreated while in sheet form and then disintegrated before or during the initial stage of esterification.  Preferably the esterification is effected in presence of a total of 10-27 per cent of sulphuric acid as catalyst, calculated on the weight of the cellulose.  The pretreatment and esterification treatments may be carried out in a continuous manner. A sheet of cotton linters may be passed continuously through a humidifying chamber and then into a stream of acetic acid at 80 DEG C.  After exposure to the action of this acid for 2 minutes, the travelling sheet enters a zone where it is treated with a solution of sulphuric acid in acetic acid at 80 DEG  C. The sheet then passes into a vessel in which it is broken up and acetylated with acetic anhydride, the temperature being allowed to rise to 15 DEG  C.  The mixture is allowed to remain in the vessel for 3 minutes and is then passed in a continuous manner to another vessel where the temperature is allowed to rise to 39 DEG  C.  After 5 minutes, the mixture is discharged as a clear cellulose acetate dope.  Specification 665,725 is referred to.
Patent GB-601708-A (GB)
Title: Improvements in surround frames for window openings in buildings
IPC: E06B1/12
Filed: 1945-09-04
Abstract: 6 01,7 0 8. Window surround frames. METAL CASEMENTS, Ltd., STEPHENS, A., and HUBBARD, A. K. Sept. 4, 1945, No. 22679. [Class 20(iii)] A surround frame 10 for a window to be secured in a wall opening in contact with the edges thereof is made of sheet metal pressed inwardly between the inner 12 and outer 13 sides to form a continuous hollow inwardly projecting shoulder 11 against which the window frame 30, 36 can be secured, extends at one side of the shoulder to form a lining 14 extending, completely around the wall opening, and extends beyond the inner surface of the wall with an outwardly bent end portion 15 extending over the inner surface of the wall and plaster, &c. and forms a complete lining and continuous corner for the wall opening. As shown the glazed frame 35 is fixed, 36 is hinged horizontally at 37, and 30 and 31 are hinged vertically at 26 in the surround frame which may have a channel section pelmet strip 16, and brackets 17 carrying curtain rails 18. On the other side of the shoulder is an outward extension 13 which, at the lower limb extends over the sill as at 19. A strip 9 may connect across the opening of the shoulder 11, and lugs may be fitted for fixing the frame to the wall.
Patent GB-457216-A (GB)
Title: Improvements in and relating to cleaning appliances
IPC: E04H4/16
Filed: 1935-08-12
Abstract: 457,216. Cleaning appliances. VOXSAN, Ltd., and STRANGE, L. H., 22, Napier Road, West Ham, London. Aug. 12, 1935, No. 22700. [Class 138 (i)] A cleaning-appliance for use in cleaning floors and walls of swimming pools and like structures comprises a reservoir 11 for cleansing fluid coupled by a flexible pipe 18 to a spray device mounted on a trolley 20, means being provided for the attachment of a cord 22 or a handle (not shown) to the trolley. The handle fits in a socket 23. The spray device comprises a nozzle 19 with a curved outlet 24. An air pump 15 may be provided to place the liquid under pressure in the reservoir 11. Holes 25 are provided on the trolley for the insertion of lead weights. A protective housing 13 for the reservoir may be adapted to serve as a carrier for the trolley when not in use.
Patent GB-422284-A (GB)
Title: Improvements in or relating to wireless receivers
IPC: H03G3/26
Filed: 1933-08-15
Abstract: 422,284. Valve circuits for wireless reception. PLESSEY CO., Ltd., and BAILEY, C. E. G., Vicarage Lane, Ilford, Essex. Aug. 15, 1933, No. 22786. [Class 40 (v)] In a receiver incorporating automatic volume control and output suppressing means acting on an amplifying valve, said means are rendered in an unstable condition so that the control progresses to produce maximum suppression or maximum output, depending on the signal strength. This is achieved by rendering the delay voltage on the gain control rectifier dependent upon the muting current. As shown, the diode 26 of a double-diode-triode valve 11, produces gain control potentials across its road resistance 28, its action being delayed by the potential developed across resistance 27. The signal detector diode 16, feeds from its load resistance 17, a D.C. potential to the grid 31 of the triode portion of valve 11 and rectified signals through a condenser 20 and potentiometer 21 to a low frequency amplifier 12. The output circuit of the triode 11 includes the grid resistance 23 of the valve 12 across which muting potentials are developed, and a controlling resistance 24. The resistance 27 is included in the anode circuit of the valve 12 so that when this valve is muted the delay voltage on the diode 26 is small. When the muting tends to be released owing to an increase in signal input the delay voltage increases to aid the releasing action. A steady voltage component is produced across the resistance 27 by the flow of current directly from the H.T. source 34. The change in current in the amplifying valve may alternatively control the grid bias on the valve 11.
Patent GB-1350161-A (GB)
Title: Lubricant filter assembly for sewing machines
IPC: B01D29/21
Filed: 1972-05-16
Abstract: 1350161 Lubricant filters for sewing machines VIRGINIO RIMOLDI & C SpA 16 May 1972 [15 June 1971] 22887/72 Heading D1G [Also in Division B1] An assembly for filtering the lubricant of a sewing machine comprises a strip 28 of porous material (e.g. felt) disposed between two series of pegs 29 and 30 projecting from a supporting plug 25. The filter assembly is enclosed in a cylindrical chamber, provided all around the base with peripheral slits to permit lubricant to enter the chamber and pass inwardly through the filter material; the filtered lubricant being withdrawn, by a gear pump, from the cavity encompassed by the strip of filter material. The width of the strip, when in an uncompressed condition, is greater than the length of the projecting pegs so that, in use, the porous material is compressed between the supporting plug and the end wall of the chamber. The filter assembly and enclosing chamber may be disposed at the bottom of the lubricantreservoir of the sewing machine.