baber/WOPTO huggingface dataset:
Patent GB-753249-A (GB)
Title: Improvements relating to a portable electro-magnetic support unit for a drill
Inventor: BUCK EUGENE WARREN
IPC: B25H1/00
Filed: 1954-02-10
Abstract: 753,249. Drilling-machines. BUCK MFG. CO. Feb. 10, 1954, No. 3946/54. Class 83 (3). A stand for a portable, electric-drill 30 comprises a post 1 on which a slide 17 for the drill is movable vertically, an electromagnetic foot 3 secured to the post, and a bracket 10, with a stabilizing leg 12, projecting from the rear of the post. The slide is fed against a spring 24 by a rack-and-pinion 21, 22 operated by a hand lever 25, and the drill is secured to the slide by a U-bolt 31 and a screw 32. A rectifier 36, in the hollow post 1, supplies the coils 5 of the electromagnet, and a socket 44 on the bracket 10 supplies the drill, a switch 39 and indicatorlamp 43 also being in the circuit. A pair of electromagnetic feet 46, 47 may replace the single foot 3 and be pivotally secured to the base 2 of the post by pins 49, Fig. 2, engaging lugs 45 on the base. Alternatively, the base 54, Fig. 4, may be pivotally-supported on the post 52 and a stop-screw 59 provided to restrict pivoting. A V-block attachment, Fig. 6, may be attached to the base, after removal of the electromagnet, and used to attach the drill to a cylindrical workpiece 62. A chain 65 and sprocket 67 operated by a handle 69 are attached to the V-block 61 for clamping, and a pawl-andratchet are provided on the sprocket-shaft 68.
Patent GB-1568556-A (GB)
Title: Fodder distributor
IPC: A01K5/02
Filed: 1977-02-01
Abstract: The system has a container (1) with two divisions (4, 5). The container is mounted such that it can tilt, so that, after one division (4) has been filled, tilting occurs, with the result that this division (4) is emptied and the other division (5) is filled. The procedure is then carried out in the reverse direction. In order to achieve better separation of the emptied feed portions, the container (1) is fitted on a stand (7) which is pivotably mounted. When the container (1) tilts, a movement-transfer device (9) effects a pivoting of the stand (7) in its mounting means (17, 18) and thus effects a pivoting of the container (1). <IMAGE>
Patent GB-870202-A (GB)
Title: Improved electric model railway control devices
Inventor: KAHN SIEGFRIED
IPC: A63H19/24
Filed: 1957-02-06
Abstract: 870,202. Controllers. DUFAY Ltd. April 25, 1958 [Feb. 6, 1957], No. 4054/57. Class 38 (3). [Also in Group XV] An electric model railway control device comprises a mounting for a switch and/or speedcontrolling device, the mounting including at least one pair of contacts which are so spaced and shaped as to engage the terminals of a battery or accumulator, one contact to the positive terminal and the other to the negative. A housing 1 of plastic has integral side plates 1A, 1B each having three metal eyelets 2 adapted to receive the shanks of battery terminals 2A. Contact strips 3 are secured to the plates by the eyelets 2 and by further eyelets 3B, and contacts formed by depressions in a pair of springs 7 are arranged on a switch lever 6 for wiping contact with the eyelets 3B. The spring contacts may also engage eyelets 3C, 3D which are connected to a terminal 4A and one lead of a rheostat 5 respectively; depressions 5B are also engageable by the spring contacts and the rheostat is controlled by a knob. The switch lever 6 has a projection 6C which serves as an indicator and which engages stops 6D formed on the housing. Reversal of the polarity at the terminals 4, 4A results from movement of the switch lever from one " stop " position to the other, and with the lever in the central position, i.e. when the spring contacts engage in the depressions 5B, no connection is made from the two parallel-connected batteries 2, 2C to the terminals 4, 4A. Use is made of the central eyelets 2 when single battery working is required. The rheostat and its casing may be omitted, the contacts springs then being mounted on a contact knob. The device may also be used with a transformer-rectifier provided with suitably spaced terminals.
Patent GB-492637-A (GB)
Title: Process for the manufacture of thiazoles unsubstituted in the 2-position
IPC: C07D277/36
Filed: 1938-02-09
Abstract: 2-Mercaptothiazoles are treated with hydrogen peroxide in acid solution to produce thiazoles unsubstituted in the 2-position. The 2-mercaptothiazoles are obtainable from a -halogen ketones and ammonium dithiocarbamate.  Sulphuric acid formed as a result of the oxidation is removed as barium sulphate.  The temperature of the reaction may be controlled by cooling and regulation of the addition of hydrogen peroxide.  Examples describe (1) preparation of 4 : 5-dimethylthiazole by treating 2-mercapto-4 : 5-dimethylthiazole (prepared from 2-bromobutanone-(3) and ammonium thiocarbamate) with hydrochloric acid and hydrogen peroxide; (2) 4-methyl-5-(b chloroethyl)-thiazole hydrochloride is prepared from 2-mercapto-4-methyl-5-(b -chloroethyl)-thiazole (prepared from 1 : 3-di-chloropentanone-(4) and ammonium dithiocarbamate); (3) 4-methyl-5-oxyethylthiazole is prepared from 2-mercapto-4-methyl-5-(b -acetoxyethyl) thiazole (prepared from 1-acetoxy 3-chloropentanone-(4) and ammonium dithiocarbamate, the acetyl group being removed by hydrolysis as well as the mercapto group by oxidation.
Patent GB-399701-A (GB)
Title: Improvements in or connected with fishing trawl nets and floats for same
IPC: A01K73/04
Filed: 1933-02-10
Abstract: 399,701. Trawling. RASK, C. G., Orient Building, Station Road, Fleetwood, Lancashire. Feb. 10, 1933, No. 4094. [Class 48.] A stream-lined aluminium float is provided with elevating fins 13 and stabilizing fins 15, 16. It is connected to the trawl net by a ring 19 moving in an inclined slot 18. The float is filled with compressed gas through a ball valve. The thickness of the metal increases with the diameter.
Patent GB-540215-A (GB)
Title: Improvements in filter inserts
IPC: B01D46/24
Filed: 1940-03-05
Abstract: 540,215. Filtering gases. CHEMA MANUFACTURING CO., Ltd., and SIGMUND, M. March 5, 1940, No. 4135. [Class 8 (ii)] A filter element comprises layers or convolutions 1 . . . 5 of paper or fabric forming a series of isolated chambers each chamber being supported internally by a spacing strip 8 corrugated in the direction of fluid flow. The corrugated strips may extend the length of the filter and be supported at intervals by adhesive tape, or a series of corrugated strips spaced apart longitudinally may be used. Two corrugated strips may be placed back to back with an adhesive strip between, as an insertion. The filter shown is formed by providing transverse cardboard spacing strips 6 on a strip of paper &c. afterwards wound into a spiral. Alternate ends of the annular filter spaces, and one end of the central space are closed by plastic or other impervious material. Specification 539,269 is referred to.
Patent GB-555015-A (GB)
Title: Magnetic coils and arrangements utilising the same
IPC: H01J31/42
Filed: 1942-03-28
Abstract: 555,015. Electric coils. STANDARD TELEPHONES & CABLES, Ltd. March 28, 1942, No. 4164. Convention date, Jan. 10, 1941. [Class 35 ] [Also in Group XL] A magnetic coil for producing a uniform field within a specified space, such as the cylindrical space occupied by an image dissector, comprises a number of serially connected coaxial windings each of one or more turns wound over an ellipsoidal surface, the common axis of the windings being perpendicular to an axis of the surface. The coil is supplied with electric current in such - manner that the ampere-turns per unit length measured along the common axis is constant, if the coils are simply connected in series, this means that the turn density per unit length of the cornmon axis is constant, but the turn density may be varied and certain coils may be shunted to vary the current through them. The cylindrical image dissector 10 is surrounded by sweep coils 11, 12 wound on prolate spheroids one within the other. The focusing coil 13 is also wound on a prolate spheroid. The coils must be bent away from the axis at 30, 31 to allow the image to be projected on the photo-electric screen 14. The focusing ring coatings 16 are connected to points of successively higher potential on a voltage divider. The axis of the sweep coils must be displaced by an angle from the position they would occupy in the absence of the focusing coil, the presence of which alters the direction of deflection of the electron stream. For film scanning only one deflection coil is needed. The shells on which the coils are wound are split into halves to facilitate assembly. The Specification as open to inspection under Sect. 91 included coils wound on cylindrical surfaces. On account of the non-uniformity introduced by the finite length of the coils, the cathode is disposed in the centre. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1510594-A (GB)
Title: Urethane-containing polythiols and their preparation
IPC: C08G18/38
Filed: 1976-02-03
Abstract: 1510594 Urethane-containing polythiols W R GRACE & CO 3 Feb 1976 [3 Feb 1975 15 Dec 1975] 04234/76 Heading C2C [Also in Division C3] The invention comprises urethane polythiols obtainable by reacting: (a) a hydroxy polythiol having the formula in which R 4  represents a trivalent saturated group having 12-24 carbon atoms and n 1 or 2; and (b) an isocyanate component consisting essentially of a mixture of methylene diphenyl diisocyanate and higher analogues thereof, in a molar ratio of -OH groups in the polythiol to -NCO groups in the isocyanate of from 0À9 : 1 to 1À1 : 1. They may be reacted with polyenes to form polymers. The preparation of intermediates is described.
Patent GB-285089-A (GB)
Title: Arrangement for generating a progressive movement of a body susceptible of being subjected to the influence of electro magnetic fields
IPC: H02K41/025
Filed: 1928-02-10
Abstract: 285,089. Surjaninoff, M. Feb. 11, 1927, [Convention date]. Reciprocating machines. - For obtaining progressive movement of a body, for example, the reciprocating armature of a motor, a moving magnetic field is produced by non-overlapping coils arranged side by side and excited by a polyphase alternating current of constant periodicity and amplitude in such a way that the sum of the phase differences between the phase currents is less than 180‹. In general the phase difference between successive phases should be 180‹ where n n is the number of phases. As shown in Fig. 1 the stator comprises a hollow cylindrical member 5 provided with parallel circumferential grooves 6 in which are wound coils 7. The coils are connected to three-phase mains as shown in Fig. 3. The armature comprises a cylindrical member 8 wound in a manner similar to the stator, but having the coils short-circuited. The armature is mounted on a slidable rod 4 which actuates a throw-over device whereby two of the phases are changed over at the end of each reciprocation. The coils b, a<1>, c' and b<11> are shown reversed with respect to the others so that the phase difference between successive phases amounts to 60‹. The sum of the phase differences therefore amounts to 120‹ in this case. The members 5, 8 may be of any desired shape in cross-section. According to the Specification as open to inspection under Sect. 91 (3) (a) the magnetic field may operate in one direction only, in which case the member 5 is returned by any other means. The device for exchanging the phases comprises a double-pole throw-over switch 17 operated by a stop 12 on the shaft 4 through a lever 14, and the switch may be immersed in an oil bath. The members 5, 8 may be constructed of segments and the coils on the members 8 may be closed through resistances. The functions of the movable and stationary parts may be interchanged. This subject-matter does not appear in the Specification as accepted.
Patent GB-853790-A (GB)
Title: Improvements in or relating to a die for extruding organic thermoplastic material toform a tubular film
IPC: B29C48/10
Filed: 1959-02-06
Abstract: A die for extruding organic thermoplastic material to form a tubular film comprises a main body member 1, the central portion of which is formed with a recess or cavity of circular cross section in a plane normal to the extrusion axis.  The bottom of the body member I is provided <PICT:0853790/IV(a)/1> with a shouldered aperture 2 for the reception of one end portion of a post 3 of circular cross section which extends into the body member cavity and is concentric therewith.  Secured to the opposite end of the post 3 is an outwardly flaring conical element 6, an orifice plate 7 being secured to the inverted base of the conical element by circumferentially spaced screws, one of which is shown at 8.  The outer periphery of the orifice plate 7 defines the inner portion of an annular extrusion orifice 9.  The post 3 is provided with an axial bore 10 through which a pipe 11 extends for the introduction of a gas at superatmospheric pressure into the tubular film during extrusion.  An orifice ring 13 is carried upon an annular shoulder 14 formed upon the interior of the body member 1, and a clamping ring 15 is secured to the top of the body member by screws, of which one is shown at 16. The inner surface of the orifice ring 13 constitutes the outer defining wall of the annular orifice 9, the width of which may be adjusted by circumferentially spaced adjusting screws, one of which is shown at 18.  An annular block 19 positioned in the recess of the body member 1 has a conical surface 2 in alignment with the surface 17 of the orifice ring 13, and an upwardly converging annular space 22 is thus provided.  The material to be extruded is introduced under pressure through a pipe 23 and bore 24 to an annular header chamber 28 via a gated opening 29.  Partially defining the header chamber 28 is an annular wall 30 having a rounded lower edge 31 which is spaced from the bottom 32 of the body recess by a space 33 through which the chamber 28 communicates with annular chamber 34 located between the inner wall of an annular feed ring 25 and the post 3.  The chamber 34 in turn communicates with the space 22, optionally via an annular narrow space 39 controlled by a gate ring 35.  The space or clearance 33 gradually increases from the small peripheral portion adjacent the gate 29 to a peripheral portion removed 180 degrees from the gate so that the pressure of the plastic material fed to the reservoir compartment 34 is substantially uniform throughout the circumference of the compartment.  An annular gate ring 35 may be positioned in the recess in the body member 1 immediately above the feed ring 25 and may be radially movable within the recess, its position, relative to the post 3, being adjustable by means of circumferentially spaced screws, one of which is shown at 36.
Patent GB-1112817-A (GB)
Title: Production of pyromellitic dianhydride
IPC: C07C51/265
Filed: 1967-01-27
Abstract: Pyromellitic dianhydride is made by vapour phase catalytic oxidation of a tetraalkylbenzene (e.g. durene) and condensing the exit gas at a cooling rate of 10-10,000 DEG  F/sec., so as to give a particle size above 1 micron.
Patent GB-1386413-A (GB)
Title: False twist crimped polyester yarn
Inventor: MACFARLANE IAIN M
IPC: D02G1/02
Filed: 1972-01-31
Abstract: 1386413 Polyester crimped yarn FIBER INDUSTRIES INC 31 Jan 1972 [29 Jan 1971 19 Jan 1972] 4350/72 Headings D1F and D1W A polyester multifilament, false twist crimped stabilised yarn, having improved processability into fabric, possesses the following characteristics, a total denier of 3-200; a denier per filament of 0.5 to 10; a tenacity of 2.5-4 grams per denier; an elongation of 20-35%; a linear shrinkage (as defined) below 15%; 30-85 crimps per extended inch of filament (as defined); a liveliness factor (as defined) of 9-60; and a filamentation value (as defined) below 0.4. The yarn is preferably polyethylene terephthalate yarn, and is produced by a simultaneous draw/false twist process in which 60-80 turns per inch of false twist are inserted and the draw ratio is 3.2-3.55. The process forms the subject of divisional Specification 1386414.
Patent GB-780189-A (GB)
Title: Improvements in or relating to fuel-injection internal-combustion engines
IPC: F02M67/04
Filed: 1954-02-16
Abstract: 780,189. Fuel injectors; regulating. WALE. G., and EVANS, C. C. Feb. 16, 1955 [Feb. 16, 1954], No. 4459/54. Classes 7(3) and 7(6) The end of a fuel injector 4 projects at top dead centre through the mouth of a combustion chamber 3 in the piston and the differential pressure set up between the cylinder space and combustion chamber forces a blast of air through an opening 9, Fig. 2, into a cavity 8 in the injector to inject the fuel therein into the combustion chamber, which fuel is supplied through a metering device 11, Fig. 3, acting as a non-return valve. In a fourstroke engine the opening of the cylinder inlet valve is delayed to produce a suction in the cylinder which lifts a non-return valve 14. Fig. 3, a predetermined amount to meter the fuel sucked into the space 8. The valve 14 is loaded by a spring 15 connected to an abutment 16 adjusted manually or by a governor to vary the time at which the valve 14 opens. The time of opening of the cylinder inlet valve may also be varied by adjustment of the actuating cam to vary the cylinder suction and house the quantity of fuel supplied to the cavity 8. In a two-stroke engine the fuel is supplied to the metering device 11 by a low pressure pump. The amount which the injector projects into the cylinder may be adjusted to vary the time of injection and the tube 13 connecting the metering device to the injector is of small bore to ensure that an unbroken column of liquid is held therein. Specification 709,412 is referred to.
Patent GB-490390-A (GB)
Title: Process for the preparation of coking coals prior to their distillation
IPC: C10L9/06
Filed: 1937-02-15
Abstract: 490,390. Coking processes. COMPAGNIE GENERALE INDUSTRIELLE. Feb. 15, 1937, No. 4487. Convention date, Feb. 13, 1936. [Class 55 (i)] Coke or semi-coke of a high density and reactivity is obtained by carbonizing caking coals which are first oxidized by treatment with air in a tower-like chamber through which the coal passes downwardly, the coal being previously heated to temperatures below its softening point. Raw coal from a bunker 2 is fed into a rotary drying drum 5, hot gases from a burner 6 traversing the drum, and passing through a casing 11 to a dust separator 12 and through an exhauster 14 to a chimney 15. The precipitated coal is returned through a duct 16 to join the bulk of the coal which is raised by an elevator 19 to the top of a tower 21 in which the oxidizing treatment takes place. In one case the coal is stored here for 10 hours while it is heated to 200‹ C. by pipes 29 through which pass hot waste gases delivered by a fan 30. The treated coal is delivered into cars 27 from which the ovens 28 are charged. In a modification, the coal is not heated by external means in the lower 21 but is heated to below softening point, e.g. 300-310‹ C. before being charged into the tower where it remains until its coking properties are sufficiently reduced. The heated coal may be mixed with cold dried coal until its temperature is reduced to from 150 to 160‹ C. and the charge is retained in the tower for about 120 hours during which time the temperature falls to 130-140‹ C., the oxidizing treatment, which was begun in the rotary drum, being continued in the treatment tower by oxygen in the air and oxygen in the coal.
Patent GB-543822-A (GB)
Title: Improvements in or relating to metal bars or blanks or to cutting tools made from such bars or blanks
IPC: B23B27/00
Filed: 1941-04-04
Abstract: 543,822. Lathe &c. tools. GANDELL, W. R. K. April 4, 1941, No. 4504. [Class 83 (iii)] A lathe &c. tool is made from a bar of quadrilateral section having four different angles as shown in the Figure.
Patent GB-410284-A (GB)
Title: Improvements in or relating to spraying devices more particularly for use in connection with printing presses
IPC: B41F23/06
Filed: 1933-02-14
Abstract: <PICT:0410284/III/1> Spraying - apparatus more particularly for use in connection with printingpresses for coating freshly printed sheets with wax for preventing offset comprises a tubular container 1, Figs. 1 and 2, for the wax carrying the spray nozzles 4 and an atomizing air supply pipe 37, and also carrying at each end a melting pot 12 within which are mounted control means for the spray nozzle.  The nozzles are controlled by shafts 14 operated by linkwork 21 . . 25 from cams on the printing press.  The shafts 14 carry tappets 15 which bear against sleeves 6, Fig. 6, to operate needle valves 7 against the action of a spring 11 to open the nozzles 3.  The atomizers comprise liquid nozzles 3, fixed in the container 1, and outer air nozzles 4 continuously communicating with the air supply 37 through ports 38.  The container may be divided by a partition 16 and separate control shafts mounted on each side of it for the two groups of nozzles.  An electric heater 36 is provided in the container 1. Fig. 7 shows control means for the sprayers operated by a printing press.  The container 1 with its trough 12 is traversed on a rail 77 which carries cams 78, 79. The cam 78 operates an oscillating lever 63 pivoted <PICT:0410284/III/2> <PICT:0410284/III/3> <PICT:0410284/III/4> to a lever 54 fulcrumed at 55 and having at its end a pin 57 engaging notches 58, 59 in a latch 61 and bearing at its other end against an adjusting pin 53 carried by a lever 52 which operates through linkwork 18, 19 the shaft 14 controlling the needle valves.  The latch 58 is pressed outwardly by a spring 64 tending to force the pin 57 into the upper notch 58 but this is prevented by the pin 65 being engaged by a stop pin on a lever 66 acted on by a spring 68.  The outer end of the lever 66 carries an arm 70 provided with a roller 72 which when engaged by the cam 79 is depressed and raises the pin 67 causing the lever 54 to engage the upper notch 58 and thus allow the valves 7 to close under the action of their springs 11.  To prevent continuous spraying when the press is stopped and to allow the spray to be discontinued at any time the arm 70 is provided with an armature 71 which may be attracted by an electromagnet 73 mounted on the trough 12.  This may be energized by push buttons placed at convenient points on the press and also by a switch working in conjunction with the starting switch of the press so that it is momentarily energized when the driving motor of the press is switched off.
Patent GB-742882-A (GB)
Title: Improvements in doctors for paper and like machines
IPC: D21G3/00
Filed: 1953-02-18
Abstract: 742,882. Doctors of paper-machines &c. SMITH, R. W. Feb. 8, 1954 [Feb. 18, 1953], No. 4554/53. Class 96. A doctor blade 10 for a roll 14 of a board or pulp making or creping or combining machine &c. is supported e.g. in a recess in a rod 16 which engages the back edge of the blade and receives projections 18 thereon, the rod 16 being cradled in lugs 20 projecting at spaced positions from a bar 12 riveted at 13 to the doctor-holder 11, the nose 21 of which bears on the blade 10. The lugs 20 are spaced 3 to 18 inches apart so that dirt &c. does not clog the blade mounting. In modifications: (1) a resilient plate is interposed between the nose of the holder 11 and the blade 10, lug 20 and bar 12 ; (2) the rod 16 is omitted, the lugs 20 being shaped to receive the back of the blade and its projections 18 ; and (3) the lugs 20 project from the holder 11 which is recessed to receive the bar 12, and the blade 10 is mounted directly in a slot in the rod 16. Specifications 346,778, 452,147 and 693,187 are referred to.