baber/WOPTO huggingface dataset:
Patent GB-565888-A (GB)
Title: Improvements in apparatus for chemical analysis
IPC: G01N35/00
Filed: 1942-10-16
Abstract: 565,888. Chemical analysis. LANGLEY, T. W., and TECALEMIT, Ltd. Oct. 16, 1942, No. 14548. [Class 1 (i)] The invention consists in semi-automatic means for performing routine chemical analysis, wherein a sample is heated with reagent for a prescribed time and is then mixed in predetermined volumetric proportion with further reagents in one or more stages from which samples are withdrawn for titration &c. It is particularly applicable to the determination of the relative wear of parts of an internalcombustion engine, by estimation of the proportions of iron, copper, aluminium, & c. in the deposit collected on the oil filter or in the oil itself. In the illustrated embodiment, a sample from the oil filter is ignited and placed in vessel 1, acid is added from funnel 13 and heat applied by burner 1a. The steam escapes by tube 9, 56 extending to the bottom of vessel 12 containing water. When a predetermined amount of steam has passed over and condensed, a sufficient head is created to cause the contents of vessel 1 to be ejected by tube 11, vessel 2, and tube 17 to measuring chamber 18 which retains a definite volume. By raising plug 20 this is added to a definite amount of water placed in mixing chamber 3. Siphon 28 operates to withdraw a definite volume of the diluted solution to chamber 4 from which another siphon passes a smaller definite volume to chamber 5 containing a known amount of thioglycollic acid. The mixture is delivered to a final chamber 6 from which a definite volume siphons into test tube 63 for colorimetric estimation of the iron content. Samples from vessels 2 and 4 are collected in tubes 64 and 65, treated with ammonia and centrifuged. The clear solution in 64 is treated with potassium cyanide for the estimation of copper ; that in 65 is treated with aurinetricarboxylic acid for the colorimetric estimation of aluminium. Specifications 560,703, [Group II], 561,187, [Group XXIX], and 563,347 are referred to.
Patent GB-1125244-A (GB)
Title: Centrifugal separator
Inventor: FERNEY FRANCIS XAVIER
IPC: B04B1/20
Filed: 1967-03-30
Abstract: 1,125,244. Centrifugal strainer/separator. BIRD MACHINE CO. 30 March, 1967, No. 14682/67. Addition to 1,065,340. Headings BID and B2P. The disclosure is identical to that of Specification 1,065,340, except that inlets (54) for the slurry are located at least 15% of the wider diameter of bowl portion (68) from the narrower end of portion (68).
Patent GB-570300-A (GB)
Title: Improvements relating to electric heating elements
IPC: H05B3/00
Filed: 1943-09-08
Abstract: 570,300. Electric resistance heaters. BRATT COLBRAN, Ltd., and MASTERMAN, R. H. Sept. 8, 1943, No. 14725. [Class 39 (iii)] A refractory bar a is formed with a longitudinal rib b, and with a circular groove c the edges of which are extended towards one another to retain a resistance coil d. The edges may be, parallel as shown, or may be splayed outwardly. Terminals e extend through the rib b at its ends. The bar a may be mounted with the open side of the groove c facing a reflector. In Fig. 3 a plurality of grooves c may be provided opposite ridges h, the ends of which are cut away and formed with holes i for terminals. In other modifications the bar a may be curved and the groove c may be polygonal.
Patent GB-792526-A (GB)
Title: Signal amplifying and modulating apparatus
IPC: G01R1/30
Filed: 1956-05-11
Abstract: 792,526. Non - contact - making relays. SPERRY RAND CORPORATION. May 11, 1956 [May 16, 1955], No. 14745/56. Class 40 (4). In a signal amplifying and modulating apparatus comprising a moving coil located in a unidirectional magnetic field which is modulated by an alternating flux, a galvanometer coil 11 and its supporting structure 2, cylindrical permanent magnets 3, 4 and A.C. energized coils 5<SP>1</SP>, 6<SP>1</SP> are housed in a tubular container 9 of ferro-magnetic material such as soft iron which forms part of the magnetic circuit. As shown in Fig. 2, the container has a central portion 18 of reduced internal diameter, and its ends are closed by threaded ferro-magnetic caps 7, 8 which clamp the magnets and coil structure and prevent axial movement of the spools 5, 6 carrying the A.C. coils. Secured to the container by solder is a flanged mounting 10 which carries insulated terminals 12-15 internally connected to the galvanometer coil and the A.C. coils by leads passing through apertures 16 in cap 7. In an application to amplifying, Fig. 3, the galvanometer coil 1<SP>1</SP> is deflected by a D.C. signal from an adjustable centre-tapped potentiometer 22 and has a proportional induced alternating voltage which is isolated from the D.C. source by an R-C filter 26 so as to pass over a transformer 29 to a load 19. The arrangement may alternatively function as an A.C. amplifier with a phasedelayed output by using the circuit shown in Fig. 4, the delay time being determined by the time constant of the moving components. In this arrangement coils 51, 6<SP>1</SP> are energized by an A.C. reference voltage and coil 1<SP>1</SP> is deflected when an A.C. input of the same frequency is applied over a centre-tapped transformer 34. As the galvanometer coil circuit is normally balanced by a variable resistor 35, a voltage proportional to the coil deflection is obtained across output terminals 31, 32.
Patent GB-220933-A (GB)
Title: A device for maintaining the creases in trousers
IPC: A41D1/10
Filed: 1924-06-18
Abstract: 220,933. Colet, H. Aug. 23, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Trouser stiffeners. - To maintain the crease in trousers a V- shaped strip of india-rubber is attached to the inside of the crease. The strip is covered with a thin layer of rubber solution and is pressed into position with a hot iron. The part a of the strip is rounded and the sides b, c made feather-edged.
Patent GB-1023986-A (GB)
Title: Improvements in or relating to safety systems for mine pit loading installations
IPC: B66B5/02
Filed: 1964-04-09
Abstract: 1,023,986. Mine cage loading installations. DUSTERLOH FABRIK FUR BERGWERKSBEDARF G.m.b.H. April 9, 1964 [April 9, 1963], No. 14782/64. Headings B8E and B8L. A safety system for a pneumatically actuated pit cage charging installation, comprising shaft gates 2, loading platforms 3, a shaft arrestor 4, an inserter 5 and a truck arrester 6, includes an electric switch 8 adapted to be set for man winding or goods winding, the arrangement being such that in the man winding position of the switch only the shaft gates and loading platforms may be actuated. In the man winding position of the switch 8, as shown, the incoming cage 1 provided with magnets 22, closes a magnetic switch 7 thereby energizing a magnetic valve 9 to the valve piston to the right. Compressed air from a line 20 passes through the valve 9 to a valve 14 controlling the shaft gates 2 and a valve 13, controlling flow of compressed air to rams 3a for actuating the loading platforms 3, is vented through a line 23 and the valve 9. Flow of compressed air to a single lever control valve 11, controlling the shaft arrester 4, the inserter 5 and the truck arrester 6, is prevented by air switches 17, 18, 19. The loading platforms 3 are raised automatically on departure of the cage which opens the switch 7 and breaks the circuit to the valve 9 whereby compressed air passes through the line 23 to return the valve 13 to the position shown in which compressed air passes through the air switch 19 to the rams 3a. In the goods winding position of the switch 8, the magnetic switch 7 closes the circuit of a coil 10b of an overriding valve 10, thereby lowering the valve spindle. A venting valve 12, which can only be opened when the lever of the control valve is in the inoperative position, is actuated to allow the passage of compressed air to the valve 10 and thence, through the line 32 to the valve 11, to the air switch 17 and to the foot or hand valve 16. By means of the valve 11, air may now be fed to the rams of the loading platforms 3, the shaft arrester 4 and the inserter 5. The shaft gates may be actuated manually by the valve 14 or automatically, on arrival and departure of the mine cage, by leaving the valve 14 open. The truck arrester 6 is opened by means of the valve 16 and a rail valve 15, when actuated by a truck, releases the compressed air for moving the arrester into the closed position.
Patent GB-1344780-A (GB)
Title: Bearings
IPC: F16C33/78
Filed: 1972-03-29
Abstract: 1344780 Bearings RIV-SKF OFFICINE DI VILLAR PEROSA SpA 29 March 1972 [10 April 1971] 14825/72 Heading F2A A rolling bearing having inner and outer races 1, 2 comprises a substantially circular cover 6 of which the peripheral part 9 has an annular rim 10 with a C-shaped cross-section which engages an annular groove 4 in the race 1, and the central part 7 demarcated by an annular ridge 8 lies in a plane which is displaced axially outwardly from that of the peripheral part 9. The groove 3 may hold an elastomeric seal, the radially outer surface of which helps to prevent the race 1 from rotating within the housing, and may also axially preload the bearing. The rim 10 is received in a groove in the housing, the edge of which groove may be deformed after assembly to retain the cover and bearing in place.
Patent GB-1140286-A (GB)
Title: Printing mechanism
IPC: B41J1/26
Filed: 1967-03-31
Abstract: 1,140,286. Selective printing. INTERNATIONAL STANDARD ELECTRIC CORP 31 March, 1967 [7 April, 1966], No. 14848/67. Heading B6F. A selective printer includes a rotary carrier 3 mounted fast on a shaft 4 and provided with an array of radial type-bars 5 which in their inoperative position rest on a support 6, whereby the disposition of the centre line Y of the shaft 4 with respect to the platen 1 is such that it makes a tangent with the platen at the point of impact of the type character 5a on the free end of the type-bar 5. In operation a type character is selected by a control mechanism 12 which deflects a shuttle 8a on the one end of a bell-crank lever 8 whose other end is provided with a gear segment meshing with a like gear segment on the type-bar 5 adjacent its pivot, the shuttle 8a then cooperating with a stationary impression cam 9. Type-bar 5 is restored under centrifugal force and assisted by a stationary restoring cam-plate 10 (Fig. 2). Platen arrangements.-In an embodiment (not shown) the platen may rotate about a vertical axis and the axis of rotation of the carrier 3 is disposed to pass through the impact point of the type-bars 5.
Patent GB-457012-A (GB)
Title: Process for the manufacture of 2,4-dioxo-3,3-dialkyl-tetrahydro-pyridines
Filed: 1936-05-26
Abstract: 2 : 4 - Dioxo - 3 : 3 - dialkyltetrahydropyridines are manufactured by the action of alkaline condensing agents on aminomethylenedialkylacetoacetic esters, which are obtained by the action of ammonia on hydroxymethylenedialkylacetoacetic esters, obtainable by condensing dialkylacetoacetic esters with formic esters.  When the alkaline condensing agent is ammonia, ring closure only takes place at about 100 DEG  C. or above.  The products dissolve in cold dilute alkali hydroxide from which they may be precipitated by acids or even carbon dioxide.  They may be employed medicinally as soporifies.  In examples: (1) methyl formate and diethylacetoacetic ethyl ester are reacted in toluene solution in the presence of sodium, the product is dissolved in water and acidified to liberate hydroxymethylenediethylacetoacetic ethyl ester, which is treated with aqueous ammonia and the resulting aminomethylene derivative is refluxed with an alcoholic solution of sodium ethylate, yielding 2 : 4-dioxo-3 : 3-diethyltetrahydropyridine; (2) hydroxymethylenedialkylacetoacetic ethyl ester (obtained from dialkylacetoacetic ethyl ester and methyl formate) is treated in methanol solution with dry ammonia while cooling with ice and then heated to 150 DEG  C., to produce 2 : 4-dioxo-3 : 3-dialkyltetrahydropyridine; (3) hydroxymethylenedipropylacetoacetic ethyl ester is treated with ammonia gas in absolute alcohol solution and the product is refluxed with an alcoholic sodium ethylate solution to yield 2 : 4-dioxo-3 : 3-dipropyltetrahydropyridine; (4) diethylacetoacetic ethyl ester is condensed with methyl formate as in (1), the resulting aqueous solution of the sodium salt of hydroxymethylenediethylacetoacetic ethyl ester is heated with ammonium chloride, and the aminomethylene derivative so formed is dissolved in alcohol and treated with aqueous caustic potash, yielding the same product as in (1); (5) hydroxymethylene - n - butyl - n - propylacetoacetic ethyl ester is treated with ammonia in absolute alcohol solution and the product is refluxed with alcoholic sodium ethylate solution, producing 2 : 4-dioxo-3-n-butyl-3-n-propyltetrahydropyridine.
Patent GB-1100675-A (GB)
Title: Novel benzdiaz[1,4]epine derivatives and a process for the manufacture thereof
Inventor: FRYER RODNEY IAN
IPC: C07D213/50
Filed: 1965-04-08
Abstract: The invention comprises compounds of the general formula <FORM:1100675/C2/1> (wherein R1 and R2 represent C1- 7 alkyl groups and the broken lines denote that they are optional substituents) and acid addition salts thereof, pharmaceutical preparations containing them, and their preparation by reacting a ketone of the formula <FORM:1100675/C2/2> either with an amino acid of the formula <FORM:1100675/C2/3> or a C1- 7 alkyl ester thereof, or with a haloacyl halide of the formula <FORM:1100675/C2/4> (wherein X and Y represent halogen atoms), treating the resulting [2-(a -haloalkanoylamino)-benzoyl]-pyridine with ammonia and cyclizing the resulting [2-(a -aminoalkanoylamino) benzoyl]-pyridine, or with benzyloxycarbonylglycine, treating the resulting (2-benzyloxycarbonylglycylaminobenzoyl) -pyridine with a hydrobromic acid-acetic acid mixture and cyclizing the resulting (2-glycylaminobenzoyl)-pyridine, optionally followed in each case by acid addition salt formation.  The preparation of the ketone starting materials is described.  The compounds of the invention are sedatives, muscle relaxants and anticonvulsants and may be administered in the form of pharmaceutical preparations containing them, with or without other (unspecified) active ingredients, in association with a carrier.
Patent GB-109680-A (GB)
Title: Improvements relating to Automobile Vehicles and Tractors.
IPC: H02P9/00
Filed: 1916-10-19
Abstract: 109,680. Daimler Co., Boughton, E., and Balcombe, H. J. Oct. 19, 1916. Systems for continuouscurrent motors only.-In a steering and driving system for motor vehicles such as tractors with endless tracks in which the wheels or chains on each side are separately driven, series electric motors are used with a series-wound generator driven by an internalcombustion engine the electric control being effected principally by changing the brush position of the generator and the motors. The lever e for controlling the generator brushes is interlocked with the levers f, f<1> of the motor brushes by the spring-pressed levers g, g<1> so that neither of the motor brushes can be moved to the neutral position, until the generator brushes are in their neutral position, and the generator brushes can only be moved from their neutral position when the motor brushes are in the forwa.rd or reverse drive position.
Patent GB-168412-A (GB)
Title: Improvements in or relating to brake adjusting means
IPC: B61H15/00
Filed: 1920-06-01
Abstract: 168,412. Brush Electrical Engineering Co., Ltd., and Hall, W. E. June 1, 1920. Compensating for wear.-The brake-rods a, b of vehicles are provided with turn-buckles and ratchet mechanism so arranged that the rods may be adjusted collectively or individually by hand to allow for variation in the wear of different brake blocks. Each turn-buckle c is provided with a part e on which are keyed reversely toothed ratchet-wheels f separated by a collar g forming a bearing for a lever h. Pawls j controlled by springs k are mounted on each side of the lever and. these pawls are adapted to be engaged by eccentrics r, r<1> controlled by a handle s so that either of them may be thrown out of engagement with its ratchet-wheel. The levers are pivoted to spring-pressed hand-operated bars t by a complete to-and-fro movement of which the turn-buckles may be moved in one or other direction cr may remain unaffected according as one or the other or both pawls are in engagement. The arrangement may be employed for making similar adjustments to rods in general.
Patent GB-844215-A (GB)
Title: Improvements in the reading of digital data signals
IPC: G06K7/14
Filed: 1957-05-13
Abstract: 844,215. Photo-electric reading of digital data records. DIRKS, G. May 13, 1957, No. 15068/57 Class 40(3). A plurality of digits represented by spaced apart groups of optically readable marks, each group representing a digit by the number of marks in that group, are read by an apparatus including, sensing means for optically scanning the groups of marks in succession to produce a signal pulse for each mark, detecting means controlled by the signal pulses and adapted to generate a control pulse in the interval between the sensing of successive groups of marks, a pulse counter adapted to be operated by the signal pulses, and signal gating means controlled by the detecting means and adapted to cause additive entry into the counter of one or more of said plurality of digits and subtractive entry of another two or more of said plurality of digits. In the exemplified embodiment a record sheet, Fig. If, is provided with groups C3, C2, Cl and A3, A2, Al of marks representing the numbers "573" and "265" and with groups of marks D2, D1 and B2, B1 representing check numbers "15" and "13" obtained by cross addition of the digits of the numbers "573" and "265" respectively. The groups of marks C3, C2, Cl, D2, D1 are scanned by a photo-cell 25, Fig. 2, and the groups A3, A2, Al, B2, B1, by a photo-cell 26, producing pulses which are stored upon an intermediate storage member 27 and which are also applied to control stages 28, 29. In each of the control stages 28, 29, the check number digits represented by groups of markings D2, Dl and B2, Bl respectively are set upon a pair of counting tubes after which the individual pulses due to the groups of markings C3, C2, Cl and A3, A2, Al are fed to the counting tubes in the direction 9-0. If these pulses reduce both counting tubes in each control stage to zero, which indicates that the numbers represented by the groups of markings have been correctly transmitted, a pulse from each control stage 28, 29 is delivered to an amplifier 98 which then initiates release of the signal recorded on the intermediate storage member to the magnetic storage tape 30. In the control stages, the gating of the various groups of pulses to the counting tubes is controlled by flip-flops responsive to and generating control pulses in the intervals between the groups of pulses. If one or both of the control stages 28, 29 does not produce a pulse indicating a correct transmission of the readings, the record sheet is automatically returned to its starting position for a repeat of the scanning operation.
Patent GB-1145995-A (GB)
Title: Improvements in or relating to the preparation of crystalline synthetic zeolites
Inventor: WHITTAM THOMAS VINCENT
IPC: C01B39/02
Filed: 1965-04-09
Abstract: 1,145,995. Zeolites Y, B and C. PETER SPENCE & SONS Ltd. 22 March, 1966 [9 April, 1965; 10 Nov., 1965], Nos. 15104/65 and 47616/65. Heading C1A. Zeolite Y having a SiO 2 /Al 2 O 3  ratio between 3 and 6À15 is made by thoroughly mixing an aqueous solution of a soluble aluminium component and a siliceous component at least part of which is a metasilicate of minimum activity "10 units" to give a reactant mixture having oxide mole ratios within the ranges Na 2 O/SiO 2  SiO 2 /Al 2 O 3  H 2 O/Na 2 O 0À28 -0À30 8-10 20- 70 0À30 -0À31 8-12 20- 70 0À31 -0À32 8-14 20- 70 0À32 -0À335 8-16 12- 90 0À335-0À4 7-40 12-120 0À4 -1À0 5-50 12-120 and heating this with agitation at 20-120‹ C. until the crystalline zeolite is formed. The activity of the silicate is an arbitrary figure ranging from 0 to 1000 and higher and is based upon the yield of Zeolite X obtained in test reactions in which the reaction mixture has the oxide mole ratios SiO 2 /Al 2 O 3  = 3À85, Na 2 O/SiO 2  = 1À34, H 2 O/Na 2 O = 47À00. The soluble aluminium compound may be sodium aluminate or aluminium sulphate, the active siliceous component may be sodium metasilicate, inactive siliceous materials may be water-glass, colloidal or highly dispersed silica, fume silica or amorphous silica. Comparative examples also disclose the preparation of Zeolites B and C using metasilicate of activity zero.
Patent GB-455934-A (GB)
Title: Improvements in or relating to fluid conduits provided with electric heating means
IPC: F24H1/10
Filed: 1935-05-24
Abstract: 455,934. Two - part couplings. PIEPER, A F., Sandringham Road, Brighton, New York, U.S.A. May 24, 1935, No. 15231. Convention date. June 23,1934. [Class 38 (i)] [See also Group XI] A nipple 57 comprises concentric members 57, 61 to which the ends of the wire 51 are soldered, the members being separated by an insulating sleeve 60. The nipple is screwed into an insulating member 50 with metallic inserts 52, 53 which contact with the members 61, 57 and carry terminals 56, 56<a>.
Patent GB-1303867-A (GB)
IPC: G10H1/02
Filed: 1970-03-31
Abstract: 1303867 Processing audio frequency signals MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 31 March 1970 [27 March 1969] 15263/70 Heading G5J [Also in Divisions H3 and H4] Audio frequency signals, e.g. tone signals in an electronic musical instrument are separated into frequency bands and the higher frequency bands are phase modulated at a sub-audio frequency before being recombined to provide vibrato without undesirable beats in the bass. Alternatively, amplitude modulation may be used. The separated signals in each of the higher frequency bands on leads 82, 83 are separated by coupling means 120, 121 which may be direct connections and modulated with modulation depth increasing with frequency in modulators 122-125 provided with modulating voltages of different phases and frequencies which increase with the input frequency, possibly stepwise. The signals pass via amplifiers 131-136 to speakers 141-146 and/or to a single amplifier 137 and speaker 147 and their combined effect is to produce a vibrato in frequency and amplitude. The input may be connected to an electronic musical instrument or a tape or disc recording. The modulation depth, or modulation frequency versus input frequency curves may be stepped or continuous, Figs. 2, 3 (not shown). The modulators (122- 123), Fig. 4 (not shown), provide signals modulated in opposite phase which are fed to speakers (148; 149) respectively, the speakers also receiving signals from lead (81). In Fig. 6 (not shown), only one modulator (122) is provided, and its output is mixed with an unmodulated signal of the same frequency both of which are fed to speaker (147). The modulators may be delay lines of variable delay characteristics giving a phase deviation characteristic shown in Fig. 9 (not shown) or a transistor may have equal emitter and collector resistors, connected to an output (330), Fig. 12 (not shown), via a variable resistance, and a variable capacitance, respectively, modulation being obtained by varying either the capacity or resistance at modulating frequency, giving the deviation characteristic shown in Fig. 11 a valve, or FET or transformer may be used instead of a transistor, and a variable inductance may be used to obtain modulation. A number of such circuits may be connected in cascade, Fig. 15 (not shown), to increase either the maximum phase deviation, Fig. 17 (not shown), or increase the frequency range over which the deviation is substantial, Fig. 20 (not shown), by suitable choice of time constant of the variable network in each circuit. Variable resistors R, Fig. 12 (not shown), R 1 , R 2 , R 3 , Fig. 15 (not shown), may utilize the Hall effect, or be light sensitive for example made of CdS or CdSe, and illuminated by a lamp supplied with alternating current at modulation frequency, and variable phase, superposed on a direct current to set the mean value of resistance, Fig. 14 (not shown).