baber/WOPTO huggingface dataset:
Patent GB-1261326-A (GB)
Title: Ratioless and non-inverting logic circuit using field effect boosting devices
Inventor: BOOHER ROBERT KENNETH
IPC: H03K19/096
Filed: 1970-04-07
Abstract: 1,261,326. Transistor logic circuits. NORTH AMERICAN ROCKWELL CORP. 7 April, 1970 [23 May, 1969], No. 16486/70. Heading H3T. [Also in Division G4] A conditionally switched capacitor 20, Fig. 2, having one plate 21 connected to an input terminal 4, and the other plate 24 formed in the substrate when the signal 4 is large enough (so that the capacitor switches from a negligible to an appreciable capacitance), is connected with a F.E.T. 23 to form a circuit 2, Fig. 1 which is connected to a point 26 to which another F.E.T. 10 is also connected. The point 26 is charged in # 1  time to earth potential which is the then existing # 2+3  potential applied to F.E.T. 10; and in # 2  time, the point 26 is discharged to the # 2+3  potential at 16 if the input 4 has caused the capacitor 20 to be formed, this capacitor transmitting the # 2+3  pulse to F.E.T. 23 gate to connect # 2+3  to point 26. Thus at point 26 there appears a non-inverted output dependent upon the input 4. A second and similar circuit operating in # 3  and 94 time completes one stage of a shift register, and gating F.E.T.'s 8, 9 isolate the stages. The conditional capacitor circuit 2 may include a plurality of F.E.T.'s (30, 31, 32, Fig. 3, not shown) in parallel to form an OR circuit.
Patent GB-145454-A (GB)
Title: Improvements in apparatus for cutting toothed gear wheels
IPC: B23F5/12
Filed: 1920-06-18
Abstract: 145,454. Delamare, R. L. J. Aug. 28,1917, [Convention date]. Gear-cutting.-A mechanism for cutting bevelgears secures the correct rolling between the wheel blank and the tool holder by means of a toothed guide quadrant and rack. As shown in Fig. 1, the guide quadrant 16 engaging a rack 17 is suitably mounted on the axis 15 of the pitch cone 12 of the blank. At a point 18 in the same axis is pivoted a link 19 having slots which engage pins 22 and 23 of the guide rack 17 and of a second rack 24 engaging a tool-holder plate 14 on which the cutting-tool is radially reciprocated. Rotary movement about the axis 15 is thus transmitted to give correct rolling movement between the cone 12 and the plate 14 controlling the tangential movement of the tool (not shown). In a modification the rolling and linear motions are both imparted to the cone, the plate being stationary. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification, Fig. 1 (Cancelled), applicable to the cutting of spur gears. The tool 3 may be imagined to constitute one tooth of a rack 4, the movement of which is controlled by a guide quadrant 5, rack 6, and slotted link 7 to give correct rolling relatively to the blank 1. In a modification the rotary and linear motion are both imparted to the blank the tool being fixed. The mechanism is applicable to cutting teeth of any profile and also to skew bevels. This subject-matter does not appear in the Specification as accepted.
Patent GB-409521-A (GB)
Title: Improvements in the manufacture and production of delustred rayon
IPC: D01F2/12
Filed: 1933-06-09
Abstract: Delustred artificial silk obtained, for example, from viscose, cuprammonium, cellulose acetate or cellulose nitrate, contains both titanium dioxide and chlorinated diphenyl.  The chlorinated diphenyl is stated to eliminate the metallic appearance which characterizes artificial silks delustred by means of titanium dioxide.  The delustrants may be employed in amounts, e.g. between 0.1 and 5.0 per cent of titanium dioxide and between 0.5 and 15.0 per cent of chlorinated diphenyl, calculated on the weight of dry yarn, and may be distributed throughout the solution to be spun, with the aid of a dispersing agent, prior to the spinning thereof. Specification 384,224 is referred to.
Patent GB-745676-A (GB)
Title: Electrochemical method for coating steel surfaces and the product thereof
Inventor: NEISH RICHARD ARMSTRONG
IPC: C25D11/36
Filed: 1953-06-16
Abstract: Ferrous articles are treated by passing them through an aqueous solution having a pH of 1 to 2 and containing 1,2 to 4,8 per cent by weight of phosphate radical and 0,3 to 1,5 per cent by weight of chromium in the form of ions of a chromium compound in which the chromium is hexavalent, maintaining the solution at a temperature between 100 DEG  and 160 DEG F., the articles being treated electrolytically as cathodes, and then removing them from the solution and drying the film of solution adhering thereto.  Steel strip is passed by means of rollers through a bath containing the solution and provided with anodes, the strip being connected as cathode by means of the rollers.  On leaving the bath it passes between squeegee rolls to remove excess solution, and then through a hot air drier, after which it is cut into sheets which are lacquered, enamelled or painted.  The solution may contain phosphoric acid, or sodium, potassium or ammonium phosphate, and chromic acid or a soluble dichromate such as sodium dichromate. If neither phosphoric or chromic acids are used the acidity may be obtained by the addition of nitric acid.  The solution may also contain 1 to 4 per cent by weight of sodium nitrate or 0,1 to p  0,4 per cent by weight potassium permanganate.  The strip is immersed for a time of 0,25 to 2 seconds.
Patent GB-1008613-A (GB)
Title: Improvements in or relating to container filling apparatus
IPC: B67C3/04
Filed: 1964-04-22
Abstract: 1,008,613. Bottling. H. TATIBANA. April 22, 1964, No. 16675/64. Heading B8T. A number of bottles 18 are simultaneously liquid filled syphonically to a predetermined level 8 from tubes 16 extending from a manifold 15 leading from a levelling vessel 13 supplied from a dispensing tank 11 and a supplemental vessel 6. A valved conduit 3 interconnects the vessels 6 and 13, and liquid is initially supplied to the system when a valve 2 is opened and a valve 14 closed. Liquid rises more slowly in the vessel 13 than in vessel 6, and eventually the lower end of a levelling pipe 7, which is at the predetermined level 8, is closed; the vessel 13 is then filled and liquid passes through opening 12 to fill the tank 11 whereupon a float valve 10 operates. To fill the bottles, the valve 2 is closed and valve 14 opened. The tank 11 and vessel 13 have a total capacity less than that sufficient to fill the bottles, but the vessel 6 has more than enough to balance the deficiency. Thus when the liquid in the vessel 13 falls below the required level 8, liquid flows into it from the vessel 6 via the conduit 3, until the liquid in the bottles reaches the desired level, after which the valve 14 is closed and the filling operation repeated.
Patent GB-1391180-A (GB)
Title: Vhf and uhf automatic gain control derived from a single control voltage
IPC: H03G3/30
Filed: 1972-04-12
Abstract: 1391180 Radio receiving circuits; automatic gain control RCA CORPORATION 12 April 1972 [14 April 1971] 16817/72 Headings H3Q and H3T A television receiver includes separate V.H.F. and U.H.F. tuners, each with its own R.F. amplifier stage; an A.G.C. signal is applied to the R.F. amplifier in the V.H.F. tuner and also to an amplifier having a high input inpedance which is partly a function of the current conducted by the amplifier, a control voltage derived from this amplifier being used to control the gain of the R.F. amplifier in the U.H.F. tuner. In addition, means are coupled to the output terminal of the amplifier which are responsive to the control voltage derived therefrom to limit it in dependence on the conduction of the amplifier. The V.H.F. R.F. amplifier comprises a double gate F.E.T. 35, Fig. 2, with the signal input applied to one gate and an A.G.C. potential to the other gate via resistor 30. The input and output filters 37, 36 respectively, are tuned by means of varactor diodes 38, 39 respectively, and the R.F. amplifier is followed by a mixer comprising junction transistors 45, 46 in cascade connection. Local oscillations are derived from oscillator 55, tuned by varactor diode 56, and which is disabled when the U.H.F. tuner is in use. The A.G.C. voltage is also applied to an amplifier comprising junction transistors 31, 32 in Darlington connection, a control voltage for the U.H.F. tuner being derived from their collectors over a potentiometer comprising resistors 60, 61. This control voltage is limited to a minimum value by means of diode 66, the anode of which derives a fixed potential by means of resistors 57, 58 from Zener diode 44. U.H.F. tuner.-The U.H.F. tuner comprises an R.F. amplifier in the form of transistor 75, Fig. 3, in common base connection with input and output filters 73, 79 tuned by means of varactor diodes 74, 80 respectively. Filter 79 comprises transmission-line elements. It feeds into a mixer diode 83 which also receives local oscillations from oscillator 84, tuned by means of varactor diode 85. Mixer 83 is coupled by capacitor 86 and inductor 113 to the emitter of junction transistor 94, which comprises a common-base connected preliminary I.F. amplifier. The output from transistor 94 is derived over a filter network comprising inductors 95, 96, 103 and capacitors 98, 99, 103, a ferrite bead 98 on the collector lead of transistor 94 preventing parasitic oscillations; the output is fed to the base of transistor 45 (Fig. 2). The A.G.C. voltage derived across resistor 61 (Fig. 2), is applied to the base of transistor 75 via an emitter-follower 110, the gain of transistor 75 being decreased by an increase in collector current therein. The output from emitter follower 110 is also applied to bias a diode 116 which forms a variable attenuator shunting the output from mixer 83; when conductive, diode 116 also provides a bias reducing the gain of I.F. amplifier 94.
Patent GB-1034824-A (GB)
Title: Semiconductor oscillation device
IPC: H01L47/00
Filed: 1963-04-30
Abstract: 1,034,824. Semi-conductor devices. AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY, MINISTRY OF INTERNATIONAL TRADE & INDUSTRY. April 30, 1963 [April 30, 1962], No. 16874/63. Heading H1K. Electrical oscillations are generated by a semi-conductor device having a region in which its cross-sectional area changes abruptly, a unidrectional voltage being applied between the ends of the device and having means for injecting minority carriers into the device. As shown, Fig. 1A, a germanium crystal has a waist formed by machining or etching, an ohmic contact 2 and a minority carrier injection contact 2<SP>1</SP> such as a PN junction. When placed in series with a suitable voltage supply the device generates oscillations. Both end contacts may be ohmic and the carrier injection achieved by projecting light on to the device. The device may also have the configuration shown in Fig. 1B, and may have a rectangular, or circular cross-section. Two or more narrowed portions can also be provided. The oscillation can be modulated using a third terminal applied to the device, by modulating the light beam if this form of carrier injection is used, or by applying a magnetic field to the device. When the device is made of germanium a pulsed voltage is used to reduce heating. Continuous oscillation may be produced by using a constant voltage and cooling the device, mounting it under pressure, or using a gallium-arsenic alloy or cadmium sulphide crystal.
Patent GB-849560-A (GB)
Title: Improvements in or relating to earth working machines
IPC: E02F3/76
Filed: 1956-10-08
Abstract: 849,560. Earth - - working equipment. LUDOWICI, J. W. Oct. 8, 1956 [Oct. 10, 1955], No. 16879/60. Divided out of 849,559. Class 68(1). [Also in Group XXX] Earth or the like scraped up by a V-shaped grader blade or plough 17 is deflected sideways into the paths of advance of two laterally extending grader blades 16 that merge at the rear into arcuate shields 14, 15. The earth is moved within these shields towards the centre of the machine by scroll conveyers 19 and is discharged thereby on to the lower run of a belt conveyer 18. Means associated with this conveyer 18 cause the earth to be transferred to a transverse conveyer. The machine is self advancing.
Patent GB-992220-A (GB)
Title: Semi-locking differentials
IPC: F16H48/29
Filed: 1964-04-23
Abstract: 992,220. Differential gearing. ILLINOIS TOOL WORKS Inc. April 23, 1964 [April 30, 1963], No. 16887/64. Heading F2D. An epicyclic differential gear unit comprises skew planet pinions, the tooth angle of which is such as to provide a semi-locking action under slip conditions. In the form shown in Figs. 1 and 2 the half shafts 20, 22 are connected to facetoothed gear-wheels 54, 56 of unequal diameters and meshed by stepped planets 50, 52 carried on spindles 46 skew-mounted on an intermediate carrier 40, the teeth of the pinions being of opposite hands. The gear teeth are preferably of the form described in Specification 940,501, the tooth angle being between 10 and 45 degrees. In the modification according to Fig. 4 the gear-wheels and teeth 54a, 56a are of the same size and are meshed by equal diameter skew planets 50a, 52a on shafts 60, 62 in a carrier 40a and carrying meshing pinions 64, 66. In this form the tooth angle of the planets preferably lies between 20 and 35 degrees.
Patent GB-1463495-A (GB)
IPC: F01B1/06
Filed: 1973-04-09
Abstract: 1463495 Reciprocating pumps and motors NEWAGE ENGS Ltd 14 March 1974 [9 April 1973] 16895/73 Heading F1A In a radial piston pump or motor comprising a cylinder block B and a cam member A located outside, as shown, or inside the cylinder block, one being rotatable relative to the other, the pistons are biased into the cylinders by a resilient ring F comprising a strip with overlapped ends Fl, F2, so that when the cylinders are unpressurized the cam followers D on the pistons are withdrawn clear of the cam surface A1. The cam followers are cylindrical or barrel-shaped rollers engaging bearing shells G within the pistons, the bearing, shells and piston skirts H extending beyond 180 degrees to retain the rollers. Ring F is located in a groove P in the cylinder block, and engages the pistons of two adjacent banks of cylinders via respective rollers E, as shown, or pegs (72), Fig. 3 (not shown), fixed to the pistons. In a vehicle wheel motor, Figs. 3 to 5 (not shown), the cylinder block is stationary and the cam member rotates with the wheel hub and a rotary pintle valve within the cylinder block, guide rings (65, 67) veing provided to axially locate the cam follower rollers and a passage (58) through each piston supplying lubricant to the respective cam follower roller.
Patent GB-169433-A (GB)
Abstract: 169,433. Branen, E. F. Aug. 9, 1920, [Convention date]. Non-metallic elastic bodies and cores.-A resilient filler for use in ordinary tyre covers 6 comprises a core 8, preferably in one length, and an annulus 7 of crescent section which is compressed between the core 8 and the cover when the beaded edges 9 are fitted in the rim flanges. The parts 7, 8 are preferably formed of spongy rubber, and by means of graded sections for the annulus 7 a core 8 of standard size may be used in covers of different dimensions.
Patent GB-198228-A (GB)
Title: Improvements in lights for buoys and the like
IPC: B63B22/16
Filed: 1922-06-20
Abstract: 198,228. Michelson, O. C. June 20, 1922. Battery lamps. - A lamp for trawler buoys comprises an accumulator casing A closed by a lid provided with a funnel b<2> over which a globe C is secured by a clamping-ring D, and a bracket G for supporting the bulbs E detachably held bv a fitting g inside the casing A. The lid is secured by sliding staples b. A switch H<1> is enclosed in a watertight casing. A socket a<3> is provided on the casing for attaching the lamp to the pole of the buoy.
Patent GB-951591-A (GB)
Title: Stabilised reagent for transaminase determination
IPC: C12Q1/52
Filed: 1960-05-13
Abstract: Reagents used in determining serum pyruvicglutamic transaminase (SPGT) and serum glutamic oxalacetic transaminase (SGOT) and comprising an aqueous solution containing either (a) a -ketoglutaric acid and 1- or d1-alanine or (b) a -ketoglutaric acid and 1- or d1-aspartic acid, are stabilized by the addition of chloroform and toluene as a separate phase in contact with said solution and the chloroform comprising 4% by volume of the solution and the toluene 0,5%.  The percentages of chloroform and toluene may be varied by \sB30%.  Stabilized solutions comprising either mixture (a) or (b) above, sodium hydroxide and a phosphate buffer are used in conjunction with 2:4-dinitrophenylhydrazine in HCl to determine SPGT or SGOT, turbidity determinations being made with a spectro-photometer or electrocolorimeter.
Patent GB-1365603-A (GB)
Title: Diaryl compounds
IPC: C07D277/66
Filed: 1972-04-13
Abstract: 1365603 Substituted diaryl compounds BAYER AG 13 April 1972 [16 April 1971] 17043/72 Heading C2C The invention comprises compounds of the formula in which Ar<SP>2</SP> represents a substituted phenyl or naphthyl radical which is substituted at least once in the ortho- or para-position by an electron acceptor radical, a 2-anthraquinonyl, 3-fluorenonyl or 2-benzothiazolyl radical and Ar<SP>3</SP> represents a phenyl or naphthyl radical, which may be substituted, in which the amino group is in the ortho- or peri-position and the hydroxyl group is in the ortho- or para-position or in the case of a 2-amino-1-napthyl radical, in the 5- or 7-position and in the case of a 1-aminonaphthyl radical in the 6-position. Such compounds are prepared by reacting sulphonamides of the formula HO-Ar<SP>1</SP>-NH-SO 2 -Ar<SP>2</SP> in which Ar<SP>1</SP> represents a phenyl or naphthyl radical, which may be substituted, in which the hydroxyl group is in the meta-position or, in the case of 1-naphthyl radical, in the 5-, 6- or 7- position and in the case of a 2-naphthyl radical in the 4-, 5- or 7-position and Ar<SP>2</SP> is as defined above. 4 - Nitrobenzene - sulpho - 3<SP>1</SP> - hydroxyanilide is prepared by reacting 3-aminophenol with 4-nitrobenzene sulphochloride.
Patent GB-151397-A (GB)
Title: Improvements in and relating to a method of and apparatus for making hollow rubber articles
IPC: B29C65/50
Filed: 1919-07-08
Abstract: 151,397. Roberts, F. T. July 8, 1919. Balls. - Relates to the manufacture of hollow rubber articles having an opening from the interior, such as football bladders, by cutting and moulding together rubber sheets seated by vacuum in two sets of mould cavities. As shown in Fig. 40, reinforcing-strips U, V are employed, which are placed in position after the sheet is seated and prior to closure of the mould.
Patent GB-1121211-A (GB)
Title: Benzimidazole dyes
Inventor: BANNERT KONRAD JERZY
IPC: C07C17/093
Filed: 1966-04-19
Abstract: The invention relates to cyanine dyes of the formula <FORM:1121211/C4-C5/1> wherein R1 and R3, which may be the same, are alkyl of 1-6 C atoms, aralkyl or aryl; R2 and R4, which may be the same except when alkyl, are alkyl, hydroxy-alkyl, aralkyl, carboxysubstituted alkyl or aralkyl, or -(CH2)nSO3H or -(CH2)nSO2NHCOR8 where n is 1-6 and R8 is alkyl, or -(CH2)nSO2NHR9 wher R9 is alkyl or aralkyl; R5 is H, halogen, alkyl or amino; R6 is H, halogen, -CH3, -CN, or alkoxycarbonyl; R10 is halogen; R11 is H or halogen; when R11 is halogen and R6 is -CF3, R5 is H; and when R1 and R3 are phenyl, R11\t is Cl and R6 is -CF3; and X is an anion.  When R2 and R4 are both (-CH2)nSO3H the dye may be isolated as the anhydro hydroxide compound. The dyes may be prepared by reacting <FORM:1121211/C4-C5/2> with chloral hydrate for symmetrical dyes or, in a basic medium, with <FORM:1121211/C4-C5/3> wherein R7 is acyl for unsymmetrical dyes.ALSO:1 - Ethyl - 2 - methyl - 5 - trifluoromethyl - 7 - chlorobenzimidazole is prepared by adding 3-amino - 4 - ethylamino - 5 - chlorobenzotrifluoride in benzene drop-wise to CH3COCl and heating under reflux for 2 hours.  The solid residue is dissolved in dil. HCl, filtered, and made alkaline with aq. NH3. 1,2-Dimethyl-5-trifluoromethyl -7-chlorobenzimidazole is similarly prepared from 3-amino-4-methylamino-5-chlorobenzotrifluoride, and 1 - phenyl 2 methyl - 5-trifluoromethyl - 7 - chlorobenzimidazole is similarly prepared from 2-amino-4-trifluoromethyl-6-chlorodiphenylamine.  3 - Amino - 4 - ethylamino - 5 - chlorobenzotrifluoride is prepared by reducing the 3-nitrocompound with Sn and HCl, diluting with H2O, passing in H2S, filtering and adding NaOH.  3 - Nitro - 4 - ethylamino - 5 - chlorobenzotrifluoride is prepared by reacting ethylamine with 3 - nitro - 4,5 - dichlorobenzotrifluoride prepared by nitrating, with HNO3 and oleum, 3,4 - dichlorobenzotrifluoride prepared by adding CuCl soln. to diazotized 3-amino-4 -chlorobenzotrifluoride. 3 - Amino - 4 - methylamino - 5 - chlorobenzotrifluoride is prepared by refluxing SnCl2 and HCl with 3-nitro - 4-methylamino - 5 - chlorobenzotrifluoride prepared by adding an ethanolic soln. of methylamine dropwise to 3-nitro-4,5-dichlorobenzotrifluoride. 2 - Amino - 4 - trifluoromethyl - 6 - chlorodiphenylamine is prepared by reacting 3-nitro-4,5-dichlorobenzotrifluoride and aniline in the presence of SnCl2.
Patent GB-398309-A (GB)
Title: Improvements in or relating to building elements made of metal
IPC: E04C2/38
Filed: 1932-06-17
Abstract: 398,309. Floors ; walls ; roofs. HOFFMANN, P., 48, Christophstrasse, Cologne, Germany. June 17, 1932, No. 17235. [Class 20 (iv).] Interlocking sheet metal building-elements for walls, floors, and roofs are formed by bending a strip to produce a folded flat flange b, d at one edge and a U-shaped folded flange e, c, f, g at the other edge. The flanges b, c may be extended and bent to receive wooden battens l to which ceiling or floor members m may be nailed or screwed. The elements may be covered with concrete, plaster, or insulating material. The metal may be rustless steel or iron, tinned iron, copper, or other rustless metal.
Patent GB-328487-A (GB)
Title: Improvements in or relating to exhaust silencers for internal combustion engines
IPC: F01N1/08
Filed: 1929-06-05
Abstract: 328,487. Allen, R. June 5, 1929. Exhaust silencers.-The silencer consists of a hollow wireur strip-wound body of polygonal cross-section and of prismatic or pyramidal form. An adaptor 1, Fig. 1, for attaching to the exhaust pipe has a diametral web 2 carrying a bolt 3 which is formed integrally 'with radial webs 4 of which eight are shown. The webs at one end engage slots 5 in the adaptor, and at the other end form an abutment for a collar 6 secured bv a nut 7. The outer edges of the webs are serrated by recesses 8 adapted to receive turns of a wire 9 which is wound over the webs and has one end secured by a screw 10 and the other end by the collar 6. The gases issue radially through the spaces between the coils either direct into the atmosphere, or into a casing 11 with an outlet 12. The casing is secured to the adaptor 1 by a split-ring 13 and clamp 14, 15. In a modification, Fig. 5, the webs 4 are formed separately from the bolt and are supported thereon by flanges 19, such flanges alternating with recesses 20 in adjacent webs. In a modification, Figs. 7 and 8 (not shown), the webs are slid into grooves such as 26, Fig. 9, formed longitudinally of the bolt 3, the turns of wire are spaced by separate serrated'strips, the bolt 3 is secured to the adaptor by a cross-pin, and the outer casing is provided at its discharge end with a cowl adapted, due to the motion of the silencer, to collect air which is directed obliquely over the outlet to exert an aspirating action upon the exhaust. The webs, instead of being plane, may be corrugated and apertured. Alternative methods of winding the wire are showr. in Fig. 9, in which the webs have shallow recesses 31 which may be filled with (1) three turns 9<a>, (2) one turn of a solid metal strip 9<b>, or (3) one turn of a channelled strip 9<c>.