baber/WOPTO huggingface dataset:
Patent GB-1348262-A (GB)
Title: Multivibrator circuit
IPC: H03K4/64
Filed: 1971-05-07
Abstract: 1348262 Converting RCA CORPORATION 7 May 1971 [11 May 1970] 13636/71 Heading H2F [Also in Division H3] Starting of a transistor multivibrator used in a time base and D.C. converter circuit is ensured by connecting the bias resistors to the collector supply via additional impedance which prevents the transistors saturating and using a voltage derived from the multivibrator oscillation to close switching means which by-passes the additional impedance and allows the transistors to saturate. The multivibrator 52, 54 drives a resonant return type time-base 92, 94, 96 feeding deflection coils 95 and an EHT generator 100. Upon first switching on, the bias resistors 62, 63 are connected to the B+ supply via a voltage dropping resistor 61 to prevent the multivibrator transistor saturating, the path to the supply including 64, 86, 100p and 106. The output oscillation of the time base is rectified at 86 to provide a 100 V. supply for associated television receiver circuits and this voltage is used to render conducting a diode 58 to by-pass the resistor 61 so that the full B + voltage is applied to the bias resistors and the transistors saturate when on. The diode and a thermistor T provide temperature compensation and a capacitor 98 provides S correction.  An A.F.C. voltage is provided by a circuit 36-39 from sync. pulses and from fly-back pulses integrated in circuit 47-51. The resulting voltage is filtered at 42-45 and supplied to the junction of the timing resistors 63 and 56 of the multivibrator.
Patent GB-623718-A (GB)
Title: Improvements in or relating to fluid operated electric treadle switches
IPC: H01H29/28
Filed: 1947-05-21
Abstract: 623,718. Retractive switches; mercury sw itches. SIEMENS & GENERAL ELECTRIC RAILWAY SIGNAL CO., Ltd., and KETTERINGHAM, T. A. May 21, 1947, No. 13684. [Class 38(v)] A treadle switch comprises a lower compartment 1 with a rail-operated diaphragm 2 which transmits movement through a fluid e.g. mercury, to a 'second diaphragm 10 adjacent a detachable contact chamber 3. The contact chamber has a reservoir of mercury at its lower end closed by a diaphragm 11 adapted to sit on the diaphragm 10, and is divided above into three cylinders 12, 13, 14 separated from the reservoir by oneway ball-valves 16 18, 19, so arranged that pulsing of the diaphragms 10, 11 due to passage of train wheels over the rail 25, pumps mercury out of the cylinders 12, 13, and into cylinder 14, thereby breaking the circuit between an electrode in the reservoir, and electrode 4, and making a circuit through electrode 5. When the mercury reaches the top of cylinder 14, it overflows through passage 23 into the cylinder 13, and recirculates. After the train has passed, the mercury slowly reverts to its original level, as shown, through bleed holes 17, 20, 21, the size of which determines the time delay before restoration. Alternatively the contact chamber may provide two normallyopen contacts (Figs. 4, 5, 6, not shown) by shortening the electrode 4, and reversing the ball-valve 18, a fourth cylinder being used in parallel with the cylinder 13 to provide an additional reservoir; or the contact-chamber may have two normallyclosed contacts, (Figs. 7, 8, 9, not shown), the ball valves 16, 18, 19, being reversed from the normally open arrangement, and the valve in the fourth cylinder being left to recirculate the overflow of mercury from the cylinder 13. In a contact-chamber suitable for slow traffic (Figs. 10, 11, not shown), the normally-open-contact-cylinder has an upper portion into which mercury overflows from the lower portion. The Specification states that float-operated contacts may be used.
Patent GB-509079-A (GB)
Title: Improvements in or relating to the treatment of textile materials with artificial resin
IPC: D06M15/423
Filed: 1938-05-09
Abstract: 509,079. Treating textiles. ROHM & HAAS CO. May 9, 1938, No. 13749. Convention date, May 11, 1937. [Class 15 (ii)] Textiles are treated with a bath containing a resin and a tertiary amine salt or a quaternary ammonium salt containing as an N-substituent an aliphatic hydrocarbon group of at least 12 C. atoms. The resin is preferably urea-formaldehyde resin, and the quaternary ammonium salt is preferably dimethyl benzyl cetyl ammonium chloride. Fabrics so treated are softer and more flexible. In examples : (1) Dimethyl urea, diammonium phosphate and dimethyl benzyl cetyl ammonium chloride are dissolved separately and the solutions mixed ; the resulting solution is padded on to a linen fabric which is then dried and heated to 270‹ F. for 10 mins. (2) A urea-formaldehyde precondensate is mixed with acetic acid and dimethyl benzyl cetyl ammonium acetate, applied to a silk-backed rayon pile velvet, vacuum extracted, the pile brushed and the fabric heated to 300‹ F. for 5 mins. (3) Cotton fabric is impregnated with a solution containing dimethylol urea, sodium sulphate, ammonium acetate and dimethyl lauryl benzyl ammonium sulphate dissolved in alcohol and water, dried and heated to 280-290‹ F. for 6 mins. Other examples describe the treatment of a rayon fabric, woollen material, and a mixed rayon cellulose acetate crape fabric.
Patent GB-356735-A (GB)
Title: Improvements relating to transmission devices on railway apparatus for driving speed responsive mechanism
IPC: G01P1/04
Filed: 1930-05-05
Abstract: 356,735. Utilizing movements of vehicles. JUNEAU, A., 360, McGill Street, Montreal, Canada. May 5, 1930, No. 13806. [Class 103 (iii).] Transmission means for speedometers, generators, &c. comprises a rotary axle 41 (of the track wheel 42), a gear 45 rigid thereon, a pinion 56 meshing with said gear, and a plurality of auxiliary transmission gears driven by the pinion 56 and operating the speedometer generator, &c. This transmission is contained in a housing 48 having an extension arm 49 which is spring-supported at 74 in a bracket 69 attached to the truck frame 40. This housing is made oiltight, the gears 45, 56 running in oil. Pinion 56 is fixed to a spindle 57 supported in ball bearings 58 and having lateral extensions through the side walls 59. One extension, Fig. 2, is shown connected by a flexible cable to drive the shaft 78 of a generator 79 or similar mechanism. Worms 61 on a shaft 57 mesh with gears 62 in spindles 63. Each spindle 63 has a central lubricating passage with a transverse pin which forms a coupling for a flexible drive shaft leading, say, to a speedometer 66. This drive may be reversible or uni-directional. A support block 63<1> will accommodate gears 62 of varying sizes. Specification 232,311, [Class 106 (iii), Fares &c.], is referred to.
Patent GB-810996-A (GB)
Title: Improvements in or relating to apparatus for assembling retaining rings in grooves
IPC: B25B27/20
Filed: 1957-05-02
Abstract: 810,996. Assembiing force fits. WALDES KOH-I-NOOR Inc. May 2, 1957 [June 25, 1956], No. 14008/57. Class 83 (4). An apparatus for assembling internal spring retaining rings in grooves provided in the bores of housings comprises a ring magazine for maintaining a plurality of the retaining rings in column formation, a sleeve member having a bore of progressively decreasing diameter for compressing a ring received in the larger end thereof to the diameter of the housing bore, means for picking off the endmost ring of the column and feeding it to the larger-diameter end of the sleeve bore, and reciprocating plunger means coaxial with said sleeve for pushing said ring axially along the sleeve bore and into the bore of a housing positioned to receive the compressed ring. The standard 11 of the apparatus supports a table 12 and a shelf 13 supporting an air cylinder 14 the plunger of which reciprocates a slide 16 in a slideway 17 on the table 12. Integral with a cover plate 18 attached to the table is a vertical ring magazine 20 having connected thereto an air cylinder 21 the piston of which is connected to a vertically reciprocable plunger 23. Depending from the table and coaxial with the plunger 23 is a ring compressing sleeve 26 having a tapered bore 27. Beneath the table and coaxial with the air cylinder 21 is an oppositely disposed air cylinder 32 whose plunger 33 mounts the workpiece housing 36 on a support 34. In operation, the air cylinder 14 actuates the slide to pick off the lowermost ring R from the column and feed it along the slideway until it abuts a stop 24 in which position it underlies the plunger 23. Air cylinder 21 is next operated and the plunger 23 forces the ring through the bore of the sleeve 26 into the housing 36 which has been positioned by the air cylinder 32, until the ring springs into the groove 38. In a modification, the slide is operated by a linkage comprising an arm 40 carried by the plunger 23a, the free end of said arm being connected by a pin and slot connection to a link 41 pivoted to a spring-loaded bell-crank lever 46 pivotally mounted on the cover plate 18a. The arm 49 of the lever 46 passes through a slot 50 in the slide. In operation, on downward movement of the plunger 23a the arm 40 rotates the bell-crank lever 46 to withdraw the slide from the previously fed ring and on upward movement of the plunger after its working stroke the spring 51. acts on the bell crank lever and the slide to feed the lowermost ring of the column into position below the plunger for the next operation. The plungers 23, 23a may be permanently magnetized to assist in centring the rings with respect thereto.
Patent GB-1236339-A (GB)
Title: Improvements in function generators
Inventor: SCHUENEMANN CLAUS HEINRICH
IPC: H03K19/173
Filed: 1969-03-18
Abstract: 1,236,339. Logical function generators. INTERNATIONAL BUSINESS MACHINES CORP. 18 March, 1969 [19 March, 1968], No. 14013/69. Heading G4A. In a variable logical function generator, the AND function of the contents of simultaneously addressed bit stores is supplied to a logic unit having a plurality of gated electrical paths, the gating devices being operable in different combinations to generate respective logical functions of the contents of the addressed stores. In Figs. 1a, 1b bit stores 61 1  ... 61 n , 62 1  ... 62 n  are addressed by respective rows XA of the diode matrix shown when connected columns of the matrix are energized by a programming ring AS. Initially, inputs E1 ... Em (top left, Fig. 1a) are loaded into the bit stores under control of the first two stages of the ring (for values 1 and 0 respectively), rows XA addressing the bit stores into which the value is to be loaded under control of gates 78, 85, and rows XE, XR of the matrix providing the writing current via ORs 80, 81, 82. The ring then energizes a series of YL and corresponding YS columns of the matrix in turn. Each YL column energized addresses selected bit stores via rows XA and produces selected gating signals f 1 , f 1 <SP>1</SP>, f 2 , f 2 <SP>1</SP>, f 3 , # 3 <SP>1</SP> from like-labelled matrix rows to, control selected gates 65, 67, 69, 71, 73, 75 in a logic unit LV. The addressed bit stores 61 1  ... 61 n  provide their inverse outputs to a line 63 which effectively ORs them, the result being inverted at 66 to give the AND of the addressed bit store 61 1  ... 61 n  contents. An identical facility is provided for the bit stores 62 1  ... 62 n . These AND functions, and their inverses (from lines 63, 64 direct), are selectively gated at 65, 67, 69, 71 to an OR 68, the output of which is selectively gated at 73, 75 to set or reset a bistable 76, The YS column corresponding to the energized YL column is energized next to address selected bit stores via rows XA and cause, via row XS, the bi-stable 76 state to be gated 88, 89 into the addressed bit stores. After the series of YL, YS energizations, one or more columns YA are energized in turn to extract the stored result(s) via logic unit LV and bi-stable 76 to output AG feeding, e.g. a data processor store.
Patent GB-181665-A (GB)
Title: Improvements in gas manufacture
IPC: C10B21/20
Filed: 1920-12-10
Abstract: 181,665. Helps, G. Dec. 10, 1920. Drawings to Specification. Retort furnaces.-In the manufacture of gas in a plant comprising a number of retorts arranged in separate and distinct settings, each setting is fired in turn by producer gas, and the products of combustion gas are passed through the other settings. The gas is supplied to the setting being fired at the bottom, and the products of combustion leave at the top, pass downwards through the next setting upwards through the third, and so on, valves being provided at top and bottom so that the heating-gases can be passed in the required direction. The retorts may be connected together, as described in Specification 181,403, so that the gas from a less highly heated retort can be led into a more highly heated retort near to the outlet therefrom. Specifications 1087/83 and 181,404, [Class 55 (i), Coking &c.], are referred to in the Complete and Provisional Specifications respectively, and the Provisional Specification describes the working of a plant comprising two retorts, which are fired alternately.
Patent GB-1219188-A (GB)
Title: Briquetting ores
IPC: C22B1/24
Filed: 1968-03-22
Abstract: 1,219,188. Briquetting iron ore fines. ACIERIES REUNTES DE BURBACH-EICH DUDELANGE ARBED S.A. 22 March, 1968 [22 March, 1967], No. 14086/68. Heading C1A. Briquetting iron mineral residues of Fe content less than 50% where the residues or mixtures thereof are briquetted at temperatures above 350‹ C. but below 900‹ C. without the addition of binding agent. The residue may be minettes and may first be heated in, e.g. a rotary furnace or a fluidized bed. Metallurgical waste, for example mill scale, or blast furnace dust, may be added as filler to the material to be briquetted. Coke fines may also be added. The briquetting is preferably effected with a rotary press and the die may be round, oval, oblong drop or any conventionally used shape. In the example given the heating temperature is 550‹ C., the briquetting temperature is 500‹ C. and the pressure used is 10 t/cm. useful cylinder length.
Patent GB-1133687-A (GB)
Title: Improvements in or relating to anticoagulant compositions
IPC: A61K31/095
Filed: 1967-03-28
Abstract: 1,133,687. Indane compounds. GENERAL ELECTRIC CO. 28 March, 1967 [29 March, 1966], No. 14093/67. Heading C2C. [Also in Division A5] The compound 2 - [p - (phenylsulphonyl) phenyl] - 1,3 - indanediene is prepared (in its enol form) by treating phenyl-p-tolylsulphone in dimethylformamide with potassium t-butoxide and diethylphthalate. Rapid cooling of the molten solid compound gives the above keto form.
Patent GB-370700-A (GB)
Title: Improvements in or relating to knee joints for artificial legs
IPC: A61F2/64
Filed: 1931-05-13
Abstract: 370,700. Artificial legs. SWAIN, J. A., Roehampton House, Roehampton Lane, London. May 13, 1931, No. 14162. [Class 81 (ii).] In a locking device for a knee joint adapted to retain the thigh and shin members in fixed alignment if desired, of the type in which a pivoted latch is adapted, when these members are in the extended position, to engage a member secured to the shin member, the latch is retained in a desired adjusted position by a device comprising a spring-pressed plunger on the thigh member adapted to engage a socket in the latch. A knee member x connects the thigh a and a shin member carrying a bent arm c pivotally mounted on a pin in said knee member. A rod g extend. ing along the thigh enters a slot in the knee member and is secured in a threaded socket k pivoted at l to a latch m which is pivoted at o on a fixed member p. On applying downward pressure to the thumb-piece h, the latch m is forced beneath the arm c, and locked by a spring-pressed plunger r, carried by the member p, engaging a socket m<1> in the latch. Two sockets m<1> are provided, for locking the latch in either the operative or inoperative position.
Patent GB-1172729-A (GB)
Title: Improvements in or relating to Vacuum Electric Switches.
Inventor: GRINDELL DUNCAN HOLMES
IPC: H01H33/662
Filed: 1967-03-29
Abstract: 1,172,729. Vacuum switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 28 March, 1968 [29 March, 1967], No. 14229/67. Heading H1N. A vacuum switch has a shield 21 with an open end surrounding the contacts and a closed end 21B held between the movable contact 17 and a bellows seal 19 and movable with the contact 17. The open end of the shield 21 faces a metal gauze screen 25 which captures particles emanating from the contacts and which is supported between an end plate 7 and a tubular insulating section 1 of the evacuated envelope. A deep groove 23 is formed between the contact 17 and shield 21 to prevent transfer of the arc to the latter.
Patent GB-868201-A (GB)
Title: Optical lens systems
IPC: G02B13/18
Filed: 1957-08-08
Abstract: 868,201. Optical objectives. CHICAGO AERIAL INDUSTRIES Inc. Aug. 8, 1957 [Oct. 16, 1956; Dec. 7, 1956], No. 14310/60. Divided out of 868,200. Class 97(1) An optical objective includes a biconcave lens followed by two positive lenses, a second biconcave lens and a third positive lens, the firstbiconcave lens having at least five times the power of the second biconcave lens. Preferably, and as shown, the first biconcave lens I and the first positive lens II are cemented together as also are the second biconcave lens IV and the third positive lens V. Optical data are given for one example of the objective 10 shown, which has an angle of field of about 85 degrees and which is associated with a field lens 12 having an aspherical surface to correct for distortion introduced by the objective 10. The objective may form the front member of a view-finder as described in Specification 868,200.
Patent GB-1165879-A (GB)
Title: Adjustable Resistor
IPC: H01C10/32
Filed: 1968-03-25
Abstract: 1,165,879. Variable Resistors. BOURNS, Inc. 25 March, 1968 [6 April, 1967], No. 14322/68. Heading H 1 S . A housing 20, Fig. 13, has a substantially closed chamber on the base 22 of which is disposed a disc-shaped substrate 30, Fig. 7, carrying an arcuate resistor 30e connected to terminal pins P1, P2; and a reistor 30r connected to one end of the resistor 30e and, through a pivot pin 22b, to a contact 34 movable over the resistor 30e. The contact 34, is secured to a rotor 26, has brushes 34c contacting the resistor 30e, and is pivoted on, and electrically connected to the pin 22b. A stop 26v limits contact movement to the resistive track 30e, and the contact 34 may be fixed in any desired position by inserting adhesive into recesses 24r, 26g in the case 24 and rotor 26. The resistors 30r, 30e are thin films of cermet or alloy deposited on the insulative ceramic substrate 30 which is glued to the base 22 by a preformed resin shape (32). The resistor 30r has a smaller resistance value than the resistor 30r and has a temperature coefficient of resistance of opposite sign. Contacts (P1a, P2a) are connected to the resistor by conductive coatings 30T1, 30T2, and are lodged in corners 30m, 30n of an arcuate notch in the substrate 30 by adhesive and a key (24k) in the cover 24. The terminals P1, P2 are offset from (P1a, P2a) and extend normally from the base 22. The feet 22g, 22h, 22k space the device apart from any circuit board into which it may be inserted.
Patent GB-1159304-A (GB)
Title: Process for the Preparations of an Optically Active alpha-Aminolactam from a Mixture of the D- and L-modifications of the alpha-Aminolactam
IPC: B01D9/00
Filed: 1967-03-29
Abstract: 1,159,304. Process for the preparation of an optically-active α-aminolactam. STAMICARBON N.V. 29 March, 1967 [31 March, 1966], No. 14361/67. Heading C2C. A process for the preparation of an opticallyactive α-aminolactam salt comprises introducing a solution of a mixture of D- and L-α-aminolactam together with optically-active pyrrolidone carboxylic acid (or a derivative thereof) and a liquid medium immiscible with the said solution into a rotary film evaporator having a constant width of gap between the spreader blades and the evaporator surface, evaporating the solution therein under conditions whereby an optically-active salt of α-aminolactam and the pyrrolidone carboxylic acid is precipitated, and discharging the residual liquid and the said precipitate from the said evaporator. An example describes the preparation of the salt of L - α - amino - # - caprolactam and L- pyrrolidone carboxylic acid.
Patent GB-131474-A (GB)
Title: Improvements in Apparatus for Stopping Trains Independently of Drivers.
Inventor: HENDERSON DONALD TAYLOR
IPC: B61L3/04
Filed: 1919-03-03
Abstract: 131,474. Henderson, D. T. March 3, 1919. Track apparatus for stopping trains.-A pivoted member 1 connected by chains to brake valves on the vehicle is engaged by one of two arms mounted on a transverse shaft 5. The arm 6 is rigidly mounted on the shaft, which is rotated by a connexion to the home signal, and the arm 7 rotateson the shaft 5 and is connected to the inner home signal. If either signal is at danger, the corresponding arm is raised to meet the member 1 and stop the train.
Patent GB-1279917-A (GB)
Title: Improvements in or relating to integrated circuits which have a multiple emitter transistor
IPC: H01L21/331
Filed: 1970-03-25
Abstract: 1279917 Integrated circuit NATIONAL SEMI-CONDUCTOR CORP 25 March 1970 [11 July 1969] 14406/70 Heading H3T [Also in Division H1] An integrated circuit comprises a multiple emitter transistor (m.e.t.) 12, Fig. 1, a second transistor 32 and a parasitic transistor 24 arranged to drive an external transistor 44. The construction comprises a P-type substrate 52, Fig. 2, within which is formed an N-type region 50 which is buried by an N-type epitaxial layer forming the collector (54), Fig. 3, (not shown), of the NPN m.e.t., which is isolated by a P<SP>+</SP> diffused region 56 from the remainder of the layer. Within the collector region is formed a continuous two part P-type region 58, 59, part 58 forming the base region of the m.e.t., and within which are diffused N-type emitter regions 62 of the m.e.t. Electrodes 74 contact the emitter regions via apertures in an overlying oxide layer. The second transistor, a PNP device, comprises an emitter region 59 connected to the base region 58 by a "pinch" resistor (66) formed beneath an N<SP>+</SP> diffusion 64 within the P region 58, 59, a base region 55 formed from part of the N layer (54), and a U-shaped collector region 60 diffused into the layer (54). Electrode 72 contacts the emitter region 59, 68 the collector 60 and the N<SP>+</SP> region 64, forming a contact region for the region (54), so shorting the junctions therebetween. The parasitic PNP transistor comprises the region 58 as collector, the layer (54) as base, and isolation region 56 as emitter. The device is stated to be suitable for high voltage T.T.L. circuits.