baber/WOPTO huggingface dataset:
Patent GB-565357-A (GB)
Title: Improvements in the knitting elements of knitting machinery
IPC: D04B35/02
Filed: 1943-03-01
Abstract: 565,357. Knitting machine needles. F.N.F., Ltd., and PEEL, R. March 1, 1943, No. 3362. [Class 74 (ii)] [Also in Group XXII] A machine knitting needle comprises a.tabulur member 1 forming a guide for a tongue 2 and having a bevelled portion 3 terminating in an integral extension formed with a hook 4, a stiffening strip 8 being secured around the hook and along the tubular member. The member 1 may be of carbon steel and the tongue 2 may be of stainless steel or of phosphor bronze. The member 1 may be first secured to the strip 8 by brazing in a reducing atmosphere before the bevelled portion 3 or extension 4 is formed, the extension and the adjacent strip portion being subsequently bent to hook form. The shaping may be effected by grinding, or a swaging process may be employed to form a tapered part extending from the bevelled portion 3 and merging into a pin of circular cross-section which is bent into the shape of the hook. Specifications 450,551 and 516,025 are referred to.
Patent GB-102712-A (GB)
Title: Improvements in Yarns Feeding Devices for Circular Knitting Machines.
Inventor: SCOTT ROBERT WALTER
IPC: D04B15/58
Filed: 1916-03-08
Abstract: 102,712. Scott, R. W. Dec. 13, 1915, [Convention date]. Circular machines.-Comprises improved yarn-changing and splicing arrangements for a machine fitted with a needle or instrument dial. The dial 4 is carried by a central shaft mounted in a bearing 8 on a bracket 1 carried by the latch ring 550, and is fitted with a cap plate 5, held against rotation by a bolt 10. Yarns are fed by pivoted fingers F<1> - - F<5> mounted and controlled as described in Specification 6533/14. Idle yarns are clamped by a spring-depressed lever 7 pivoted on a hub b on the plate 5, which also carries severing- means similar to that described in the above-mentioned Specification, comprising a fixed blade 15 housed in a slot in the plate, and a movable blade 16 operated through a lever 611 and link 19 by a pattern-controlled thrust-bar 460. The lever 7 has a yarn-guiding finger and co-operates with a yarn-positioning pin 23, its position being such that the yarn when brought into action is positioned substantially diametrically with respect to the nedles circle. To ensure taking ot yarn from a less-favourably placed guide, as F', the stitch cam 357, Fig. 4, is formed with a slope 26. Splicing-yarn is supplied by the guide F<1>; and to ensure accurate taking by the short-butted needles n<1>, the following cam 360 is provided with a supplemental cam 25 adapted to act only upon the long-butted needles n<2> to cause them to miss the splicing-yarn. The float 12, Fig. 2, of splicing-yarn, is guided beneath the dial by an instrument P normally held out of action by a spring p', but brought into operation during splicing by a thrust-bar i and rock-lever p<5>.
Patent GB-1212392-A (GB)
Title: Rotary seal and centrifuge incorporating same
IPC: B04B5/04
Filed: 1968-01-23
Abstract: 1,212,392. Mechanical seals. ARTHUR D. LITTLE Inc. 23 Jan., 1968 [23 Jan., 1967], No. 3571/68. Heading F2B. [Also in Division B2] Sealing means 69 for a centrifuge comprises a rigid sealing ring 74 having a part-spherical outer surface and urged into facial sealing contact with a shoulder 63 of a non-rotary effluent tube 56 by an elastomeric sleeve 73 having a central deformable portion 77 and upper and lower portion 75 and 76 frictionally secured to the rotatable centrifuge body 10 and to the ring 74 respectively. The ring 74 may be of carbon, graphite or P.T.F.E. containing graphite and the tube 56 is preferably of aluminium with the shoulder 63 hardened. The body 10 is driven from a flange 26 integral with a core 24 that enters into the body and forms an annular space 90 therewith.
Patent GB-933788-A (GB)
Title: Spark ignition apparatus
Inventor: COLLINS KEITH DOUGLAS
IPC: F02P7/03
Filed: 1961-01-31
Abstract: 933,788. Converting. ROTAX Ltd. Jan. 16, 1962 [Jan. 31, 1961], No. 3583/61. Class 38 (2). [Also in Group XXVII] Spark ignition apparatus comprises in combination a pair of transformers 5, 5a having primary and secondary windings, switch means 11 in circuit with the primary windings and movable between a first position in which one of the primary windings is energized and a second position in which both primary windings are energized, means (transistors 9, 9a) for breaking the circuits to the primary windings intermittently so as to generate a high voltage in the secondary windings, a pair of capacitors 15, 15a connected across the secondary windings through rectifiers 16, 16a respectively, a pair of control gaps 19, 19a each having two spaced electrodes connected across the pair of capacitors respectively so that the control gaps break down when the voltages across the capacitors reach a predetermined value and a pair of conductive bands 25, 25a surrounding the control gaps respectively and connected to an electrode of the other control gap respectively, breakdown of one control gap applying a bias to the band surrounding the other control gap to reduce the breakdown voltage thereof. In use under normal conditions the switch 11 is set so that one or other of the transformers 5, 5a is energized. Where a discharge of greater energy is required the switch is set so that both transformers 5, 5a are energized simultaneously. Either one or two spark gaps may be employed. The terminals 34 are adapted for connection to a source of direct or rectified alternating current. In a modification the transistors are dispensed with and interrupters in circuit with inductors are employed. In another modification each control gap is provided with an additional conductive band.
Patent GB-1211834-A (GB)
Title: A method of and an apparatus for releasing a camera in dopper-radar speed-measuring systems
IPC: G08G1/054
Filed: 1969-01-23
Abstract: 1,211,834. Doppler radar. ZELLWEGER Ltd. USTER FACTORIES FOR APPARATUS AND MACHINES. 23 Jan., 1969 [15 Feb., 1968], No. 3768/69. Heading H4D. Specification describes a vehicle speeddetecting Doppler radar controlling a camera 9, Fig. 1, whereby the taking of a photograph of an offending vehicle leaving the radar beam is inhibited if a change in the Dopper frequency is detected indicating the entry into the beam of a second vehicle. This ensures that the photograph will not be of two vehicles wherein there is no indication of which is the offending vehicle. The Doppler frequency f 0  is produced in mixer 4 and is converted to a speed proportional voltage U 1 , Fig. 5(a) by transformer 6. When this voltage exceeds a predetermined threshold, entry arrival recorder 30 produces a pulse 32, Fig. 5(b) at time t 1 . The entry pulse triggers bi-stable 60 (outputs at Figs. 5(f) and 5(g)) and starts the generation of a pulse, Fig. 5(h) from generator 70. When a computer 41 detects that the speed is prohibitive and has remained constant over a period t 1 , the corresponding value of U 1 , viz. U 2  is stored in means 44 and appears at output 46, Fig. 5(d). The voltage U 2  is fed to one input of comparator 50 and the speed voltage U 1  is fed to the other input thereof. If no new vehicle enters the radar beam whilst the first vehicle is therein, the comparator 50 gives no output voltage during time t 3  to t 7 . The voltage U 2  is also fed to generator 70 to there generate a constant current proportion to U 2 . By using this current to charge a capacitor, Fig. 4 (not shown) the generator 70 produces a pulse, Fig. 5(h), having a duration T indicating the time the vehicle takes to travel a predetermined distance 5 and ending at time t 5 . When the vehicle leaves the beam at time t 7  the change in U 1  causes a pulse from comparator 50 which resets bi-stable 60. The output, Fig. 5(f) thereof passes to inhibited AND gate 81. The signal, Fig. 5(h) after a small delay t 2  at 85 is applied to the gate as the inhibiting signal. The inhibiting signal ending at time t 6 , allows the positive step K, Fig. 5(k) through the gate, which step is used to trigger the camera 10. The speed U 2  may be included in the photograph with the rear of the car, by means of display meter 12. AND gate 93 and OR gate 99 cause the resetting of the comparator 41. If, however, a second vehicle does enter the beam at time t 4 , Fig. 6, causing a change in the voltage U 1 , the comparator 53 gives a corresponding output, Fig. 6, whereby the pulse, Fig. 6(f), from the bi-stable 60 is terminated before the end of the inhibiting pulse, Fig. 6(i) and no camera triggering pulse K is produced. Transistorized embodiments of units 50 and 70 are given, Figs. 2 and 4 (not shown).
Patent GB-1370754-A (GB)
Title: Electrical capacitors
IPC: H01G9/12
Filed: 1973-01-25
Abstract: 1370754 Capacitors SIEMENS AG 25 Jan 1973 [27 April 1972] 3802/73 Heading H1M A pressure-relief valve in a capacitor, particularly electrolytic, comprises member 1 of elastic material closing valve opening 5, and backing washer 2 of diameter such that it positively presses a peripheral lip portion of member 1 against annular projection 3 on the capacitor housing, the washer being provided with at least one recess 6 in its outer periphery at which the lip can lift to allow venting. Recesses 6 may comprise two cut-away segments (Fig. 2, not shown), or a plurality of notches (Fig. 3, not shown). The washer may have centring pips at its inner periphery (Fig. 2, not shown). Reference has been directed by the Comptroller to Specification 1,155,916.
Patent GB-502986-A (GB)
Title: Hinges
IPC: E05D7/06
Filed: 1938-02-07
Abstract: 502,986. Hinges. ATWOOD, S. B., and ATWOOD, J. T. Feb. 7, 1938, No. 3816. Convention date, March 1, 1937. [Class 66 (ii)] A gooseneck member 22 has a ball head 24 located in a part-spherical socket 30 and a shank 23 extending through a horizontal slot 32 which is wide enough to permit of angular adjustment in the vertical plane of the member 22. The socket member 21 is formed in two parts 29, 35 having co-operating recesses to form the socket 30, and the block 40 of hardened steel is made separate from the part 35. In a modification, Fig. 7, part of the socket member 29a is formed integral with the pillar 60 of the vehicle body and flanges 61 outlining the slot 32a give additional rigidity to the pillar. The portion 40a of the socket member fits loosely in the recess 42a so that tightening up of the attaching bolts causes the ball 24 to be held resiliently in the socket. In a further modification, the socket member 21 is formed from two L-shaped plates pressed from sheet metal, and the gooseneck member 22 is a rod bent at right-angles. The end 25 of the shank 23 may be attached to the door 20 by studs 27 as shown, Fig. 2, or may be welded or otherwise attached to a reinforcing plate attached to the inner side of the door pillar. The hinge may be lubricated by the use of passages 46, 47 and may have an annular wick placed in a recess around the ball head 24 to hold the lubricant. A rubber buffer may be incorporated in the socket member 21 to limit the amount of opening of the member 22. Specification 502,209 is referred to.
Patent GB-607539-A (GB)
Title: Improvements in or relating to the manufacture of derivatives of ª‰.ª‰-dimethylcysteine and intermediates for the manufacture thereof
Filed: 1946-02-07
Abstract: b ,b -Dimethyl cysteine derivatives of the general formula <FORM:0607539/IV(b)/1> where R3 is a benzyl or substituted benzyl group and R1, R2 are hydrogen or alkyl groups are prepared from a -bromo isobutyraldehyde by reaction with a benzyl or substantial benzyl metal mercaptide to give the S-substituted a -mercapto-isobutyraldehyde, followed by reaction with HCN to give the cyanhydrin, treatment with ammonia or an amine to introduce the amino group and subsequent hydrolysis of the cyanide group.  In general, the metal mercaptide will be the salt of an alkali metal such as sodium, but other metal salts such as mercury silver and lead may be used.  Possible substituted benzyl derivatives are alkyl, aryl, aralkyl, alkoxy, aryloxy and aralkoxy derivatives.  When R3 is benzyl and R1 and R2 are hydrogen atoms the preferred product S-benzyl penicillamine is obtained.  This may be converted to b ,b -dimethyl cysteine by the action of sodium in liquid ammonia.  Examples (I) and (II) describe the preparation of S-benzyl penicillamine by treating a -bromo-isobutyraldehyde with sodium benzyl mercaptide to give a -benzyl mercapto isobutyraldehyde, which is converted to the cyanhydrin, treated with ammonia to give the amine, and finally hydrolysed to give the final product.  By using methylamine in place of ammonia, example (III), the N-methyl derivative is prepared.  a  - Bromo - isobutyraldehyde is obtained by brominating isobutyraldehyde diethyl acetate and hydrolysing the product.
Patent GB-159178-A (GB)
Title: Improvements in hot water or steam heating installations
IPC: F24D19/08
Filed: 1921-02-02
Abstract: 159,178. Mennesson, G. Feb. 20, 1920, [Convention date]. Feed-water, supplying and controlling. - Relates to steam or hot-water heating-installations of the type comprising an instantaneous steam generator 2 supplied with water from a supply reservoir 1 through a connecting-pipe 4 provided with a valve which is controlled automatically by the pressure variations in the generator. According to the invention, the valve 8 is arranged to move vertically and when open to leave only a small passage, for example, one millimeter in width between itself and the seat 9 for the escape of gas and air from the water during the heating operation and to be closed only when the steam pressure causes a rapid backward flow of water from the generator to the reservoir. Preferably, the valve is constituted by a flat disc 8, which is guided on a central rod 11 having a limiting shoulder 12, and co-operates with a number of small apertures 10 on the bottom of the reservoir. A number of steam-separators are arranged in the heating-system, in the upper parts of which the inflow pipes 5 open at 13 and from the lower parts of which are taken the pipes leading to the radiators 3 the arrangement preventing back-flow of water from the radiators to the generator. In the case of rapid heating in the generator, the heating of the radiators is almost entirely by steam; in the case of slow heating in the generator, by hot water forced through the system by steam.
Patent GB-1493882-A (GB)
Title: Diapers
IPC: D04H1/70
Filed: 1975-01-29
Abstract: 1493882 Absorbent web formers COLGATE-PALMOLIVE CO 29 Jan 1975 [4 Feb 1974] 3939/75 Heading D1N An apparatus for manufacturing disposable diapers comprises a movable surface upon which absorbent material is continuously deposited, the surface having spaced apart cylindrical blocking elements 38 fixed thereto which extend from the surface a distance substantially equal to the desired thickness of the bolt formed thereon. The movable surface is perforate and deposition is aided by a suction zone 20. A blowing duct 30 aids removal of the bolt from the surface. Rolls of tissue paper 28, 34 supply surface layers for the diaper material. The blocking elements 38 have a diameter of “ inch to 1 inch and are mutually spaced apart by a distance at least equal to the diameter. Alternatively to the cylindrical forming surface shown in Fig. I a flat belt surface may be employed, Fig. 2 (not shown). Specification 1483951 is referred to.
Patent GB-602729-A (GB)
Title: Improvements in or relating to electron discharge devices of the velocity-modulationtype
IPC: H01J25/12
Filed: 1944-03-02
Abstract: 602,729. Velocity-modulated tubes. BARFORD, N. C. March 2, 1944, No. 3950. [Class 39 (i)] Amplitude-modulation is imposed on a beam of electrons after it has been velocity-modulated, by means which is not only placed after the velocity-modulating means itself, but also after any stage which is coupled to that means ; undesired frequency modulation is thereby avoided. The amplitude modulating means may comprise a pair of plates 9 which deflect the beam across an apertured plate 10 to give variable cut-off and is placed, in the oscillator shown in Fig. 1, after the buncher resonator 4 and the catcher resonator 5 coupled to it and before the output resonator 6, and in the cascade amplifier shown in Fig. 2, after the input resonator 16 and before the intermediate resonator 17 and output resonator 18. The deflection may be performed magnetically and plate 10 may have a circular, triangular or other shaped aperture. Variable defocusing may be substituted for deflection. Electrode 11 may be a collector or may be biassed to reflect electrons back into resonator 6. In a simple amplifier, intermediate resonator 17 may be omitted.
Patent GB-470259-A (GB)
Title: A solution for the treatment of the tread surface of pneumatic and other elastic tyres for vehicles
IPC: B29D30/06
Filed: 1936-02-10
Abstract: A non-skidding and preservative dressing for tyre treads is made by heating to 150--200 DEG  C. a mixture of linseed oil (50 parts), colophony (12 parts), manganese dioxide (2--3 parts) to which is added, after cooling, a mixture of coal tar naphtha (15 parts) and petroleum naphtha (20 parts).  In a modification, 1 part of manganese resinate is added to a mixture of the constituents as above, and the whole heated gently until the colophony and resinate are dissolved.ALSO:A non-skidding and preservative dressing for tyre treads is made by heating to 150-200 DEG  C. a mixture of linseed oil (50 parts), colophony (12 parts), manganese dioxide (2-3 parts) to which is added, after cooling, a mixture of coal tar naphtha (15 parts) and petroleum naphtha (20 parts).  In a modification, 1 part of manganese resinate may be added to a mixture of the constituents as above, and the whole heated gently until the colophony and resinate are dissolved.
Patent GB-666783-A (GB)
Title: Method of compounding rubbery butadiene 1, 3 polymers by treatment of rubbery butadiene 1, 3 polymer lignin co-precipitates
IPC: C08L21/00
Filed: 1949-02-14
Abstract: Synthetic rubber, e.g. a copolymer of butadiene with styrene or acrylonitrile or a polymer of chlorobutadiene, is compounded by coprecipitating such rubber and lignin particles from a latex of the rubber admixed with alkaline lignin solution, separating the precipitate formed but without causing any substantial coalescence of the particles, adding compounding agents while still in a dispersed state, drying the mixture, forming the dried mixture into shapes and curing the articles so formed.  In an example, a GR-S latex containing 25 per cent solids was mixed with a 25 per cent solution of lignin in the form of sodium lignate.  A 0.8 per cent solution of sulphuric acid heated to 194 DEG  F. was added slowly, the resulting precipitate filtered and washed, then placed in a homogenizer, and zinc oxide, benzothiazyl disulphide, copper diethyl dithiocarbamate, and sulphur added and the dried material sheeted.  In a further example the filter cake was redispersed and then sprayed or coated on to a backing of paper or textile after which the composite article was cured.  Specification 633,725 is referred to.
Patent GB-552959-A (GB)
Title: Keying method for radio transmitters
IPC: H04L27/04
Filed: 1942-03-27
Abstract: 552,959. Wireless transmitting systems. STANDARD TELEPHONES & CABLES; Ltd. (International Standard Electric Corporation). March 27, 1942, No. 4065. [Class 40 (v)] An arrangement for keying a radio transmitter comprises a valve oscillator the output of which is rectified and smoothed to obtain a negative potential for blocking the transmitter during spaces, marking being effected by biasing a grid of the local oscillator to stop oscillation and to allow the transmitter to operate. The back-coupled triode oscillator 1 feeds a rectifying diode 34, which may be in the same envelope, and gives a negative bias across the diode load 9 which is applied at 15 to a grid of the transmitter valve. When the key 16 is closed, the valve 1 ceases to oscillate, the negative voltage at 15 falls to zero, and the transmitter functions. The valve 1 may be a pentode, and the key 16 arranged to earth its screen grid, Fig. 2 (not shown). In another modification, the valve 1 is a hexode with backcoupling between its anode and outer control grid and with the key 16 arranged when closed to apply prohibitive bias to its inner control grid, Fig. 3 (not shown).
Patent GB-269280-A (GB)
Title: Improvements in apparatus for integrating accelerations
IPC: G01P7/00
Filed: 1926-02-12
Abstract: 269,280. Henderson, Sir J. B. Feb. 12, 1926. Telescopic observations for measuring speed.- A telescopic instrument for determining the change of velocity of the observer's ship by integration of the horizontal component acceleration due to changing course, comprises an accelerationsensitve device and an attached pivoted mirror inserted in the optical system to cause displacement of illuminated cross-wires with respect to the collimator wires of the eye-piece by an amount proportional to the change of velocity. The stabilized telescope described in Specification 16669/15, [Class 97 (iii), Thermometers &c.], is utilized and comprises the cylinder 26 carrying the prisms 31 and connected by roller and slot 16 with the gyroscope gimbal ring 5. Parallel to the line of sight is disposed a level consisting of two mercury-containing vessels 59 connected by an air tube 61 and a capillary tube 60, and mounted rigid with a mirror 57 upon a bracket 52 by means of two pairs of crossed leaf springs 58. The mirror is arranged at 45‹ so as to reflect the image of an illuminated graticule in a dome 63<1> through an objective 65, prism 66 and plain glass reflector 67 into the objective 44 of the telescope. The eye-piece is provided with a graticule 46 the central vertical line of which has a scale graduated in knots denoting velocity changes, as indicated by the displacement of the image of the graticule in the dome 63<1>. Instances are given of the utility and applicability of the instrument, and in this connection Specifications 159,604 and' 188,390, [both in Class 97 (iii), Thermometers &c.], are referred to. According to the Provisional Specification the level may be stationary instead of pivoted and the effects of acceleration upon the levels in the two vessels may be indicated by floats connected with the prism of an auxiliary telescope kept trained on the horizon. Specifications 165,028; and 166,907, [Class 97 (iii), Thermometers &c.], also are referred to.
Patent GB-1430351-A (GB)
Title: Electrolysis process and apparatus therefor
IPC: C25C7/00
Filed: 1974-01-29
Abstract: 1430351 Fused salt electrolysis cell NORSK HYDRO AS 29 Jan 1974 [ 30 Jan 1973] 04124/74 Heading C7B In the electrolysis of molten metal chlorides, e.g. for Mg production, in a cell having alternate anodes 1 and double-acting cathodes 2, and in which a partition 10 separates the electrolysis region 3 from the metal recovery region 5, the electrolyte circulates by natural convection as shown in Figs. 2 and 3 (which are respectively endon and lateral vertical sections), separation of electrolyte and metal from chlorine gas being achieved by reversing flow of the former relative to the rising gas bubbles below the gas collection regions 4 and passing this flow through ducts 6 in the cathodes to the metal separating region. The metal floats to the top in this region while electrolyte recirculates. The cathodes may have a sloping base 12 and top portion 11 and may contain one or more ducts whose entrances are in the cathodes' horizontal top. The duct outlet is preferably vertical, as shown.
Patent GB-764803-A (GB)
Title: Improvements in armature windings for dynamo-electric machines
IPC: H02K3/28
Filed: 1955-02-11
Abstract: 764,803. Winding layouts for alternators. GENERAL ELECTRIC CO. Feb. 11, 1955 [Feb. 11, 1954], No. 4148/55. Class 35. An alternator armature winding has two parallel-connected circuits per pole per phase, the coil sides being disposed in consecutive slots in the order 122121121221 in each phase band, where numeral 1 indicates the coil sides serially connected in one circuit and numeral 2 those in the other circuit. The coil sides denoted 3, 4 under the opposite poles are similarly arranged.