baber/WOPTO huggingface dataset:
Patent GB-371098-A (GB)
Title: Improvements in and relating to electric metering systems
IPC: G08C19/00
Filed: 1931-02-25
Abstract: 371,098. Electric signalling systems. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A. -(Assignees of Allgemeine Elektricitats- Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Feb. 25, 1931, No. 5934. Convention date, Feb. 25, 1930. [Class 40 (i).] In an arrangement for the summation of measured values by a time-impulse system, each impulse to be summed produces a current for a time proportional to the value, which times may overlap for different impulses. The currents are measured in an ampere-hour meter which, on subsequently giving an impulse for the sum total, traverses a path proportional to the product of the current values and the time duration of the impulses received. An arrangement is shown for obtaining the sum of the outputs from several measuring points. Impulses whose duration is proportional to the terms of the sum, as measured by the individual meters, close the working contacts 6, 7, 8 of corresponding time-impulse receiving relays. Corresponding currents, of a value determined by resistances 9, 10, 11 and duration determined by the time during which the contacts are closed, are supplied to the winding of an ampere-hour meter 1, which is thus rotated in a forward direction to an extent proportional to each impulse and separates contacts 4, 5, through worm gearing 2, 3, by an amount proportional to the impulse. If two or more impulses are received simultaneously, the rate of rotation of the meter is proportional to the sum of the currents. The resistances 9, 10, 11 serve to reduce the impulse current to the same output scale. When all the impulses have arrived, the contacts 4, 5 have been separated by a distance proportional to the desired sum. A clock-driven switch 12 closes the circuit of a relay 13 which at its contacts 13<1> reverses the connections of the meter 1, and through its contact 13<2> closes the circuit of a relay 16. This closes a contact 16<1> to start the sum impulse in a special circuit, and also a second contact 16<2> which supplies current to the meter 1 through a resistance 14. The meter then rotates in the reverse direction at a constant speed until the contacts 4, 5 close, thereby exciting the relay 15. This closes a holding contact 151 and opens the back contacts 152, 153, 154 which open the sum-impulse and meter circuits. Instead of reversing the motion of the meter 1, a second similar ampere-hour meter may be used for producing the sum impulse.
Patent GB-1205172-A (GB)
Title: Circuit for reducing excitation currents for a rotating transformer
IPC: H01F38/18
Filed: 1968-02-06
Abstract: 1,205,172. Automatic temperature control systems. GENERAL ELECTRIC CO. Feb. 6, 1968 [March 9, 1967], No.5935/68. Heading G3R. A temperature sensitive thermistor 66 connected to the rotating winding of a rotating transformer 41 fed from an A.C. supply 30, of say 2-5 kc. causes the transformer to act as a variable impedance hence varying the potential of a point 35 which is applied through a filter 39, 49, 51 and a diode 47 to an amplifier 27 where it is compared with a reference voltage from a point 19, the amplifier output controlling a heater (not shown) through a circuit 63. The input of the reference circuit may be D.C. or A.C., and if A.C. may be derived from the supply 30. The invention resides in the provision of a capacitor 43, preferably tuning the transformer to resonance, to reduce the transformer magnetizing current drawn from the supply. Temperature compensation of diode 47 is  provided by a diode 23, which also rectifies the reference signal if this A. C. The reference circuit may be commoned through a connection 20 to other temperature control circuits.
Patent GB-1454952-A (GB)
Title: Water extraction method and apparatus
IPC: C02F11/12
Filed: 1974-02-08
Abstract: 1454952 Presses SCAPA ENG Ltd 3 Feb 1975 [8 Feb 1974] 05970/74 Heading B1D In a method of pressing pulp (e.g. paper) the open-bottomed container 25 filled with pulp from hopper 43 by chute 30, is moved by piston-cylinder means 32 over press chamber 19 to fill it, the container 25 is returned to its filling position, moisture-permeable press plate 20 is moved to close the top of chamber 19, the chamber 19 is pivoted to a horizontal position by piston-cylinder means 16, the moisturepermeable press plate 21 is moved by pistoncylinder means 23 to press the pulp, the expressed moisture draining from the plates 20, 21, the plate 20 is retracted and the plate 21 is moved to eject the pressed block 41 onto openwork conveyor 40. The chamber 19 and plates 20, 21 are then returned to their original positions. Each plate comprises a hollow body having a face provided with apertures and covered with filter material. The embodiment shown comprises two banks of press chambers 19 associated with a common hopper 43 in which is mounted rotatable blades 45 carrying brushes, each bank being movable between the vertical and horizontal positions by a respective piston-cylinder means 16. In another embodiment the press chambers may be angularly spaced, pivoted individually and operated in sequence.
Patent GB-1055112-A (GB)
Title: Improvements in or relating to expandable polymers
Inventor: POTTENGER CARL HAXTON
IPC: C08J9/224
Filed: 1963-09-25
Abstract: A storage-stable expansible thermoplastic composition comprises a mixture of (1) particles of thermoplastic synthetic resin having incorporated therein a non-solid organic blowing agent and one component of a two-component blowing agent adjunct, with (2) externally of said particles, the second component of the blowing agent adjunct.  One component of the adjunct is boric acid or a solid organic acid having three milliequivalents of acidic hydrogen/gram, and the other is a solid carbon-dioxide-liberating agent, e.g. a carbonate or bicarbonate of an alkali, alkaline earth metal, or ammonia.  The second ingredient of the composition may be dusted or externally coated on to the thermoplastic particles, which are preferably of polystyrene.  The preferred organic blowing agent is a liquid hydrocarbon.
Patent GB-500915-A (GB)
Title: Improvements in or relating to apparatus for the curing of meats
IPC: A23B4/28
Filed: 1938-02-26
Abstract: 500,915. Liquid - meters. RUMSEY, JUN., H. Feb. 26, 1938, No. 6154. Convention date, May 20, 1937. [Class 69 (i)] [Also in Group VI] Apparatus for curing meat by the artery injection method comprises means for injecting a curing liquid into an artery of a piece of meat, means for measuring the amount of liquid injected and the amount escaping from the meat, and indicating means operatively connected to the two measuring means for indicating the difference between the amount of liquid injected and the amount escaping. As shown, the meat 18, Fig. 2, is placed on a table 14 which has upstanding sides 15 and back 16 and serves to collect the brine which passes out of the meat, this brine flowing through a pipe 19 to a receptacle 20. The brine is supplied through a pipe 23 to a meter 22 from which it passes through a pipe and a flexible tube 25 and a valve 26 having a control handle 27 to an injection needle 28 by which it is injected into the arteries of the meat. The meter 22 actuates a pointer 29 on a shaft 30, Fig. 3, through gears 31, 32. The poiriter 29 moves over a graduated circular dial 33 which is itself rotated through a rack 37 and pinion 39 by a float 35 in the receptacle 20, the float rising as the brine draining off the meat collects in receptacle 20, causing the dial 33 to rotate an amount proportionate thereto. A pointer 50 which is frictionally mounted on a tubular projection 51 integral with pinion 39 can, before commencing operation, be set on dial 33 to the point corresponding to the amount of brine to be injected; when in the subsequent operation the pointer 29 registers with pointer 50 the desired amount of brine has been incorporated in the meat. After completion of injection the brine is drained from receptacle 20 through a valve 43 normally held closed by a spring 47 and opened by depressing a pedal 44 connected through a link 45 to a lever 46 attached to the valve. A cock is provided at the bottom of receptacle 20 to permit it to be drained completely from time to time. The Specification as open to inspection under Sect. 91 comprises also the application of the device to liquid-measuring apparatus generally. This subject-matter does not appear in the Specification as accepted.
Patent GB-1095881-A (GB)
Title: Berbine derivatives and process for the preparation thereof
IPC: C07D455/03
Filed: 1965-02-12
Abstract: Berbine derivatives of Formula I <FORM:1095881/C2/1> <FORM:1095881/C2/2> <FORM:1095881/C2/3> where R1 and R2 are, independently, H, OMe or OEt, or together are methylenedioxy or one is benzyloxy and the other H, OMe or OEt, both R3s are H or both Me, R4 and R5 are the same and are OMe or OEt and R6 is H, Me or -CH2OCH3, are prepared by reacting a compound of Formula IVa (see Specification 1,095,882) where X1 is H, Cl, Br or I and X11 is halogen with an alkali metal borohydride to effect cyclization and, where X1 is halogen, further reacting the product (V) with a reductive dehalogenating agent such as zinc in an alkaline medium or H2/Pd black/EtOH.  The compounds of Formula V (X1 = halogen) are claimed per se as are the following compounds of Formula I:  3,9,10 - trimethoxy-berbine; 2,3,9,10 - tetramethoxy - 5,5 - dimethyl-berbine; 2,3,9,10 - tetramethoxy - 11 - methyl-berbine; 2,3,9,10 - tetramethoxy - 11 - methoxymethylberbine; and 2-benzyloxy-3,9,10-trimethoxyberbine.
Patent GB-1380864-A (GB)
Title: Display panel
IPC: G09F11/12
Filed: 1973-02-08
Abstract: 1380864 Matrix displays TRANS-LUX CORP 8 Feb 1973 [26 June 1972] 6290/73 Heading G5C  A display panel comprises a plurality of modules 37 arranged in rows and columns to form an endless belt, each module able to display a character, means for moving the belt, a write head assembly 38 within the panel movable into and out of a writing position and a mechanism including a pawl for synchronizing movement of the belt and head assembly. Rows of modules are hooked on to rods 49-65 to form the belt which moves upwardly in sprockets 48. Each module comprises an array of pivoted reflectors 40, 41 each carrying a magnet 40<SP>1</SP>, 41<SP>1</SP> and pins 42 adjacent each magnet. The write head assembly 38 comprises an array of coils 45 which receive the pins in the write position and suitably magnetize selected pins thereby affecting the magnets 40<SP>1</SP>, 41<SP>1</SP> and causing associated reflectors to pivot up into a display position. The assembly 38 is mounted on a printed circuit board 44 carried on a moving frame comprising bracket 82, member 74 and pins 77. The frame moves on wheels 83 to and from the modules and is driven by levers 86, 108, 109. As a row of modules moves up into the write position and the head moves to engage the pins 42 the rod 43<SP>1</SP> carrying the modules is positively located and supported to prevent bowing by a pawl 75. After writing the pawl is moved upwards by drive shaft 76 to bring the next row of modules to the writing position. Means are provided for slowing the belt as it approaches the next position. Data is erased by a magnetic field through which all modules pass on the return down path. The panel is illuminated by fluorescent lamps and reflectors.
Patent GB-308441-A (GB)
Title: Improvements relating to vertical automatic turning and like machine tools
IPC: B23Q5/22
Filed: 1928-02-29
Abstract: 308,441. Ryder & Sons, Ltd., T., and Ryder, F. E. Feb. 29, 1928. Lathes.-In a vertical automatic turning-lathe of the type having an indexable work-carrier provided with a number of rotary work-spindles while the tools are mounted in a vertical central slide band upon radially disposed horizontal slides (not shown, further supplementary tool holders are provided to perform additional operations on the work-piece. The slide b carries a plate a carrying a slide d on which is mounted an angularly - adjustable slide e fitted with a tool-slide j. A rack h secured to the plate a engages a pinion f mounted in the slide d and integral with a pinion g engaging a. rack i on the tool slide. A bar k secured to the slide d carries adjustable stop-nuts m and during the downward feed of the slide these nuts engage the fixed head n and arrest the slide d whereupon further movement of the slide b and plate a rotates the double pinion f, g to feed the tool slide. When the main slide is returned a pawl o on the slide d engages a bar q secured to the fixed head, thus arresting the slide d and causing the return of the tool slide. When the original position of this slide is reached, a stop u disengages the pawl from its bar and the slide d thereafter rises with the main slide. This device enables bevel-turning, undercutting &c. to be performed. Specifications 230,569 and 245.617 are referred to.
Patent GB-416009-A (GB)
Title: Improvements in or relating to back-rests
IPC: A47C9/10
Filed: 1933-03-02
Abstract: 416,009. Back-rests. GOULD, J. R., 35, Jameson Road, Bexhill-on-Sea. March 2, 1933, No. 6372. [Class 52 (ii).] A beach or bed back-rest consists of two side bars A<1> connected by cross bars A<2>, A<4> and a pivot bar A<3>, a strut frame B<1> attached to the pivot bar A<3> and formed with feet b, b<1> which extend beyond the cross-bar B<2> and project into the sand &c. The canvas C is attached to the bar A<4>, A<2>, and spreads forward loosely ; its front portions may have a cushion E, a pocket 4, and press-stud fasteners D, by means of which the canvas C may be secured to fasteners D<2> and thus form a pocket for the cushion E or other article. The frames A<1>, B<1> may be made of rectangular bars and connected by hinges and by an adjustable length of webbing or the like. The pivot bar A<3> has ends reduced by compression and passed into apertures in the strut frame B <1>, which embraces the frame A<1> when folded. Specifications 182,675 and 182,761, [both in Class 52 (ii)], are referred to.
Patent GB-386815-A (GB)
Title: Improvements in or relating to pistons
IPC: F16J1/16
Filed: 1932-03-03
Abstract: 386,815. Pistons ; connecting-rods. VANNI, P. G., 30, Via Solari, Milan, Italy. March 3, 1932, No. 6467. Convention date, March 9, 1931. [Class 122 (i).] In a piston for an internal-combustion engine a conical member 11, inserted between the gudgeon-pin 7 and the piston crown, engages the latter by means of its base 15 and a central column 17. The apex of the member 11 may screw into the gudgeon-pin, or may make a spigot and socket joint 9 therewith. The connecting-rod 22 is bifurcated and engages the under surface of the gudgeon-pin. The latter is supported in the walls 5 of a box which is secured by means of a screwed ring 16, or otherwise. The curved ends 6 of the box engage the interior of the piston skirt. Cooling oil, supplied to the interior of the member 11 by passages 24, 10, 18, passes by perforations 21 to the piston walls. In a modification a conical member 11, without a central column 17, is formed integral with members 6 engaging the piston skirt and carries gudgeon-pin bearings on its under surface. In this modification the connecting-rod is not bifurcated.
Patent GB-183885-A (GB)
Title: Process for treating animal fibre to improve the spinning and felting properties thereof
IPC: D01C3/00
Filed: 1921-02-26
Abstract: 183,885. Trostel, A. O. Feb. 26, 1921. Fibres, treating.-To obtain a product suitable for the purposes of spinning, felting and shrinking under the action of heat, animal fibres are immersed in the cold for about two weeks in a weak alkaline bath. The bath may contain less than 0.5 per cent alkali composed of milk of lime in admixture with alkali sulphide. The fibres, preferably washed to remove the alkali and deposited impurities and then further treated in a dilute acid bath for about 24 hours, are finally washed and dried at a temperature less than 120‹ F. The product may be further heated for fire-proofing or other purposes with mineralizing- agents such as chrome salts, a suitable bath comprising a salt solution containing 1.6 per cent of Cr2O3 by weight and having a basicity equivalent to one hydroxyl radical. Reference has been directed by the Comptroller to Specification 4144/79.
Patent GB-400489-A (GB)
Title: Improvements in and relating to the production of alkali cellulose for viscose manufacture
IPC: C08B1/10
Filed: 1933-03-03
Abstract: <PICT:0400489/IV/1> In the production and ripening of alkali cellulose for viscose manufacture, cellulose of normal fibre length and in the form of a thin continuous web as obtained from a roll is led in uninterrupted sequence through a mercerizing liquid, through a rotating pressing device in order to remove excess liquid, and then through a closed ripening chamber.  The temperature in the ripening chamber may be above 30 DEG  C., and preferably is over 40 DEG  C., the duration of passage therethrough and the temperature therein being adjusted to give the desired degree of drying.  The moisture of the air in the ripening chamber may be suitably regulated, and carbon dioxide may be prevented from acting on the alkali cellulose by enclosing the whole apparatus and blowing purified air therethrough. In the apparatus shown, a cellulose band 2 from a roll 1 is led between rolls 3, 4 into alkali lye in a vat 5.  The band 2 is carried by an endless conveyor 6 and the co-operating rolls 7, 9, 10 through the bath between the squeezing rolls 11, 12.  The conveyor 6 leaves the squeezing rolls and returns to the vat, passing the band 2 to a second conveyor 13 which brings it into the ripening chamber 14. Here the cellulose band is successively taken hold of by horizontal endless conveyors 15a, 15b, 15c, &c., arranged above one another. The band leaving the chamber 14 at the outlet 16 passes to a cooling zone; or a cooling zone may be arranged inside the cabinet. Instead of one conveying band for carrying the cellulose web, two conveying bands may be used, between which the cellulose strip is inserted. With a high vat, a zig-zag path may be provided for the cellulose strip.  It is also possible to convey two or more cellulose layers one above the other through the vat.  The pressure applied by the rolls 11, 12 may be adjustable.  A scraper may be provided for removing the cellulose from the rolls of the pressing device.  Two or more pressing devices may be arranged one behind the other.  To remove the hemicellulose from the cellulose treated, two or more lye baths may be used of different concentration, the excess of lye being removed from the band between each bath.  Hydroquinone or molasses or the like may be added to influence the mercerizing effect.  Means may also be provided for supplying fresh lye.
Patent GB-596365-A (GB)
Title: Improvements in and relating to synthetic compositions and products having molecularly oriented structures
IPC: D01F6/18
Filed: 1944-04-11
Abstract: Molecularly oriented materials are produced by cold-drawing a copolymer prepared from a mixture containing 40-80 per cent acrylonitrile and 20-60 per cent of an acrylic ester of the formula CH2=CR.COOR1, R being hydrogen or alkyl up to 4 carbon atoms, and R1 being alkyl, aralkyl, aryl or alkaryl or a mixture of such esters. Various values are listed for R and R1, and a list of acrylic esters is given.  The copolymers may be formed into filaments, sheets, rods or tubes before cold-drawing, by extrusion or by dry- or wet-spinning methods. Reference is also made for comparison to the copolymerization of acrylonitrile with butadiene, styrene and vinyl acetate.  The copolymerization may take place in an emulsion using polyvinyl alcohol, polymethacrylic acid or starch acetate as emulsifying agent, or by heating the monomers together in presence of an activating catalyst, e.g. ozone, ozonides, sodium and barium peroxides, acyl peroxides (e.g. acetyl, lauryl, stearyl, benzoyl, acetyl benzoyl), perborates, persulphates, perchlorates, aluminium halides, methacrylic and hydrofluoric acids, cobalt and manganese resinates, linoleates, maleates.  In examples: (1) varying proportions of acrylonitrile and ethyl acrylate are copolymerized in emulsion in water in presence of polymethacrylic acid and hydrogen peroxide, the product is extruded to form a filament, and the filament is cold-drawn; (2) varying proportions of acrylonitrile and ethyl methacrylate are compolymerized in emulsion in water in presence of benzoyl peroxide and polyvinyl alcohol, the product is extruded to form a filament, and the filament is cold-drawn; (3) acrylonitrile and benzyl acrylate are heated in a sealed container with benzoyl peroxide and the product extruded and cold-drawn; (4) acrylonitrile is copolymerized as in (1) with ethyl acrylate, together with ethyl methacrylate, methyl acrylate, propyl acrylate or butyl acrylate.  Specification 387,976 is referred to.
Patent GB-690175-A (GB)
Title: Improvements relating to electric motor control systems
Inventor: BINNEY ERIC ALTON
IPC: H02P7/298
Filed: 1950-03-17
Abstract: 690,175. Cores for dynamo-electric machines. ENGLISH ELECTRIC CO., Ltd. March 2, 1951 [March 17, 1950], No. 6711/50. Class 35. [Also in Group XXXVII] In a control system for D.C. motors having bifurcated poles and separate field windings on each pole leg, the range of speed is extended by first reducing the excitation on the pole legs assisted by the armature m.m.f., and then the excitation due to the other field winding. Fig. 2 shows the flux condition of a D.C. series motor having the salient poles bifurcated into two legs 1a, 1b (preferably spaced 60 degrees electrical) carrying field coils 2, 3. The inclined line 24 indicates the m.m.f. of the armature and the broken lines 25, 26 indicate the m.m.f's of the coils 2, 3 respectively. The closure of the contactors in the motor field circuit produces a different resultant m.m.f. according to which contactor(s) is closed. The lines 27, 30, 31 are resultant m.m.f's under the leg 1a and the lines 28, 29 are resultant m.m.f's under the other leg 1b. The lines 29, 31 indicate the resultant m.m.f's under the legs 1b, 1a when the appropriate contactors are operated. Thus the voltage between the commutator bars will be reduced because of the reduction of the resultant m.m.f. In a modification, the armature is in series with a single field winding 33, Fig. 3 (not shown), made up from coils on legs 1a, separately excited windings 34, 35 being respectively provided on legs 1a, 1b.
Patent GB-583871-A (GB)
Title: Velocipedes
IPC: B62K3/12
Filed: 1944-04-12
Abstract: 583,871. Tandem cycles. BIRD, J. T. April 12, 1944, No. 6763. [Class 136 (iii)] A cycle of the kind having a supplementary seat pillar 22 arranged behind the main frame and having means for transmitting the rear rider's effort to a forward driving spindle 16, has its wheel base lengthened by such an amount that the rear rider sits behind the leading rider in the same manner and with the same distance between them as the riders of a conventional tandem. The rear seat pillar 22 is carried by supplementary forks 7 containing coil springs and supplementary frame members 10. The rear rider's cranks 15 are secured to a spindle 19 carried in ball bearings in a frame member 9 and drive the front crank axle 16 by a chain 17. The front cranks 12 on the axle 16 drive the rear road wheel hub which is concentric with and carried by ball bearings on the spindle 19. Normal braking, freewheel and multi-speed gear may be embodied and the members 7, 10 may be detachable. Reference has been directed by the Comptroller to Specification 24375/94, [Class 136]