baber/WOPTO huggingface dataset:
Patent GB-193480-A (GB)
Title: Improvements in or relating to automatic brake systems for railways and the like
IPC: B61L3/04
Filed: 1921-11-22
Abstract: 193,480. Malone, W. Nov. 22, 1921. Mechanical systems, automatic; track apparatus for stopping trains and actuating signals on trains and other than on trains.-A fixed striker 8, Fig. 1, on the train engages an arm 9b, Fig. 4, of a track contact so as to raise a similar arm 9<a> into the path of a pivoted contact 2 or frangible device on an approaching train so as to apply the brakes. The contact 2 is fixed in front of the fixed contact 8 and operates a brake-valve by link motion such as pivoted links 4, connected to swing together by a bar 5, when engaged by a pin 3 on the contact 2. The bar 5 engages the brake-valve handle. As applied to one line of rails, the levers 9<a>, 9<b>, Fig. 6, operate a crank 11 connected by wires or rods and crank 13 to a lever 9<c> which is raised when the striker 8 engages the lever 9<b>. The lever 9<c>, when actuated by a re-setting striker on the rear of the train, returns the apparatus to normal position. A series of overlapping sets of apparatus may form continuous protection. In a modified form of the apparatus, the track contacts c, Fig. 10, rotate on vertical pivots when a striker a on the train engages a lug e, thereby bringing a lug c<3> into the path of a contact C on an approaching train causing partial brake-application. A second contact d having a lug d<3> taller than the lug c<3> co-operates with a contact D on an approaching train to apply the brakes fully. The contacts c, dare re-set by a fixed striker b .co-operating with re-setting contacts c<2>, d<2>. A train contact O may co-operate with the lugs c<3>, d<3> in their normal position to indicate the position of the train to the driver. In a further modification full and partial-application track contacts are set by the use of only one contact c and one contact c<2>. The application of the apparatus to a leop line and a junction is also .described. The fixed strikers on the engine or rear of the train are put into or out of action by the driver or guard. The train contacts may be duplicated for reverse running. The track contacts may operate visible signals. In order to safeguard the train on the breakage of a wire, one end of each wire is passed over a part 24, Fig. 9, of the cranks and is connected to an arm 23 turning on the same spindle as the crank and connected thereto by a spring which causes the arm 23 to engage abutments A on the cranks and to rotate them to the danger position. An alternative form of this apparatus is described.
Patent GB-332147-A (GB)
Title: Improvements in and relating to the removal of sulphur from fuel gases
IPC: C10K1/08
Filed: 1929-10-15
Abstract: 332,147. Watson, S. G., Henshaw, D. M., and Holmes & Co., Ltd., W. C. Oct. 15, 1929. Washing processes; materials for purifying.- In removing sulphur from fuel gases by means of reagents in association with water e.g., suspensions or solutions of metallic oxides in alkalis, the hot gases are preliminarily treated with hygroscopic or water-absorbing bodies in such a way as not to reduce the gas temperature below that at which the sulphur-removing reaction proceeds satisfactorily e.g. 35-4:0‹ C. The hygroscopic bodies which may comprise liquids such as a calcium chloride solution may have already been employed in removing moisture from the purified gas. Exposure of the solution to the atmosphere effects evaporation of the absorbed water and it is then employed with or without further cooling for treating the purified gas which may be further treated with dry iron oxide.
Patent GB-1393167-A (GB)
Title: Constant current power supply
IPC: H02M7/162
Filed: 1972-07-04
Abstract: 1393167 Controlling rectifiers SIGMA INSTRUMENTS Inc 4 July 1972 [3 March 1972] 31276/72 Heading H2F [Also in Division G3] In an arrangement for supplying a load such as a stepping motor through a controlled rectifier, the rectifier output current is sensed and  used to produce a signal which is compared with a sweep signal to determine the firing instants of the controlled rectifier. The sweep signal varies during periods in which the rectifier output voltage is decreasing. The arrangement shown comprises a controlled bridge 14 including thyristors 36, 38 connected between an A.C. line 12, a filter circuit 16 and load terminals 44, 46. A current-sensing resistor 18 feeds a signal to the base of a transistor 58 forming a differential amplifier with transistor 60 which is biased at a desired level by a potentiometer 62, 64, 66. An output error signal is passed to a second differential amplifier comprising transistors 74, 76 for comparison with a signal developed by a sweep circuit 26. When this signal exceeds the error signal, a transistor 84 is turned on, and a differentiating circuit 86, 88 supplies firing pulses to thyristors 36, 38. The sweep circuit 26 includes a negative fullwave rectifier 104, 106 and a level-determining Zener-diode 136. The output from a positive full-wave rectifier 100, 102 triggers a thyristor 118 which controls transistor 126 so as to ground the first half of each half-wave of the signal at its collector. The remainder of the signal, in the form of pulses with sinusoidal leading edges, forms the signal which is compared with the error sigal in differential amplifier 74, 76, and its shape improves the linearity of the control system.
Patent GB-1507987-A (GB)
Title: Mill stand roll parameter monitor
IPC: B21B1/18
Filed: 1974-07-15
Abstract: 1507987 Measuring roll pass alignment electrically BRITISH STEEL CORP 23 May 1975 [15 July 1974] 31276/74 Heading G1N [Also in Division B3] Roll pass alignment and other parameters of co-operating rolls of a mill stand are monitored during rolling by means of a plurality of eddy current sensors which are positioned adjacent the rolls and give an indication of the sensor-roll surface distance. Roll-pass alignment Figs. 1, 2. In a bar/rod 3 mill sensors 6, 7 are mounted on the mill stand 4 so as to lie adjacent the end faces on the necks of the rolls or the roll shoulders or collars, couplings or discs on the rolls, each sensor comprising a coil wound on a ferrite core which is potted into a ferrite surround. The sensors 6, 7 each form part of the tuned circuit of a respective oscillator 9, 10 the outputs from which are demodulated at 11, 12 and fed via respective amplifier filter circuits 13, 14 to a function switch 15 including ganged switches 16 to 19. With the function switch in the position shown the outputs from both sensors are fed to amplifier 20 which includes two log amplifiers and a comparator the output from which represents the difference between the two sensorroll surface distances and is applied to display 22. A signal is also applied to the comparator from a potentiometer 21 which is such as to adjust amplifier 20 to zero when the two readings from the sensors are zero. With the ganged switches in the upper position the output from sensor 6 is compared with a reference voltage from source 33 to obtain the absolute distance between the sensor and roll surface. In the lower position the output from sensor 7 is measured. Roll wear. This may be measured by mounting sensors 6', 7' as shown. Wear in Section mills Fig. 3 (not shown). A section mill for rolling beams is provided with three sets of sensors, the sensors of each set being associated with a respective roll. Axial misalignment and wear are measured. Stirp and plate mills, Fig. 4 (not shown). Two sets of sensors are mounted as close as possible to the nip between the respective work rolls and their associated back-up rolls and measure the appropriate roll wear less the roll bending and a further two sets are mounted close to the surface of the appropriate work rolls in their axial plants parallel to the direction of travel of the sheet being rolled and measure roll wear. By appropriate positioning of the switches in the function switch roll bending is obtained. Thickness of material being rolled, Fig. 5. Sensors 39, 40 are positioned as shown and knowing the roll diameter the roll gap may be deduced from the readings of the sensors. Sensors 41, 42 enable the wear to be measured and both the loaded roll gap and the pass wear are used to obtain a reading of the thickness of the stock being rolled. Roll surface roughness or defects. This may be obtained by examining the high frequency components of the oscillator outputs or by using a circuit as shown in Specification 1475517.
Patent GB-269099-A (GB)
Title: Improvements in boats of the planing or surface type
IPC: B63B39/06
Filed: 1926-12-09
Abstract: 269,099. Plum, J. Dec. 9, 1926. Drawings to Specification. Shafts vaned to coact with propellers. - In a hydroplane vessel the drag set up by a downwardly inclined propeller shaft working in the water is reduced by providing the exposed portion of the shaft with longitudinal faces or serrations which may be provided on a separate sleeve.
Patent GB-464925-A (GB)
Title: Improvements in water closets
IPC: E03D1/28
Filed: 1935-11-12
Abstract: 464,925. Closets; siphon - discharge water-waste-preventers. HENREKSON, J. W. Nov. 12, 1935, No. 31333. [Class 26] In a combined closet and water - waste-preventer, the latter discharges through a siphon 9, Fig. 3, the bottom of the inlet 8 of which is located between the normal level of water in the basin and the top of the basin rim, and the discharge passage from the basin is formed in addition to the ordinary U-trap with a second bend 21 of which the upper wall 22 projects downwardly to within a short distance of the normal level of water trapped in the bend. The siphon discharges tangentially into the periphery of the basin at or about the level of water in the basin. Whilst the supply-valve is open a portion of the' water entering the cistern may be passed directly to the rim. The cistern and tank may be integrally moulded or separately moulded and subsequently joined. The siphon discharge may be initiated by a piston carried by one end of a pivoted lever the other end of which is depressed by an operating-plunger : further the siphon pistonrod may have flats on its sides to permit the escape of air during filling of the cistern. The parts may be arranged as shown in Fig. 4.
Patent GB-734865-A (GB)
Title: Improvements in cooking vessels
IPC: A47J36/34
Filed: 1952-12-11
Abstract: 734,865. Cooking-vessels. NODEN, T. J. Dec. 4, 1953 [Dec. 11, 1952], No. 31343/52. Class 66. A device for supporting one saucepan within another of the kind comprising an annular stamping having a dependent flange for seating on the rim of the outer saucepan and a central aperture K, Fig. 2, in which the inner saucepan is seated, is provided with means for supporting the inner saucepan at varying heights with respect to the outer saucepan. As shown the support comprises a stirrup R, Fig. 3, having notches T in its vertical limbs which engage with the edges of slots S cut in the periphery of the central aperture K. The inner periphery of the aperture K may be curved downwardly to return condensation, and may be radially slotted as at B to permit the aperture K to be adjusted for slightly differing sizes of inner vessels. Specification 4369/10, [Class 66], is referred to.
Patent GB-1348617-A (GB)
Title: Bistable controllable circuit arrangement
IPC: H03K3/287
Filed: 1972-07-05
Abstract: 1348617 Bi-stable circuits CONTRAVES AG 5 July 1972 [22 Oct 1971] 31382/72 Heading H3T A bi-stable circuit comprises two reciprocally coupled amplifiers A, B having in one operating state one amplifier A in the active amplifying state and the other amplifier B in the inactive non-amplifying state and feed-back paths between the input, output of each main amplifier A, B, including a respective inverting coupling amplifier A<SP>1</SP>, B<SP>1</SP> and a transmission path, e.g. of capacitors C a , C b , externally variable for fulfilling the oscillatory condition of A for switching the operating states of the amplifiers A, B. In one operating state, i.e. C a  < C b , transistors A, A<SP>1</SP> are in their active amplifying mode, transistor B in the inactive saturated state, transistor B<SP>1</SP> in the inactive blocked state so that potentials at junctions k a , k b  are respectively high and low. When an external device P is moved from position Pb to P a  so that C a  > C b , the oscillatory condition of A is satisfied and as transistors A, A<SP>1</SP> move into their inactive states, transistors B<SP>1</SP>, B<SP>1</SP> are enabled by reciprocal coupling paths G ab , G ba  into their active amplifying modes. The capacitors C a , Cb may be oppositely gauged (Fig. 4, not shown) or have only one of them variable. Instead of variable capacitors C a , C b , the bistable may be set into either operating state by ohmic resistances, bridging impedances across A<SP>1</SP>, B<SP>1</SP> or microphones in the feed-back paths (Fig. 2, not shown) activating the bi-stable by a difference in the sound pressures. For ensuring that transistors A<SP>1</SP>, B<SP>1</SP> are set in their saturation ranges, they are provided with larger emitter surface areas, e.g. by replacing A<SP>1</SP>, B<SP>1</SP> with a plurality of transistors having their respective electrodes combined in parallel (Fig. 4, not shown).
Patent GB-520455-A (GB)
Title: Improvements in tables for feeding sheets to metal punching and other machines
IPC: B21D28/26
Filed: 1938-10-31
Abstract: 520,455. Punching. BENNIE, H. O., and SCOTTISH MACHINE TOOL CORPORATION, Ltd. Oct. 31, 1938, No. 31399. [Class 83 (iv)] Metal-sheet feeds.-Ships' plates &c. are moved under a punch by positive means controlled by the operator from a seat 1 carried on the Machine. The sheet is clamped at 33 to a beam 34 running on flanged rollers 35, and is further supported on rollers 61. Abutments 39, 40 carry adjusting screws attached to ropes passing round pulleys, 43, 44, and attached to a winding drum 47 rotated by a shaft 48 splined in a bevel-wheel 51, rotated from a hand-wheel 57 for longitudinal adjustments of the plate. A second handwheel drives through similar gearing a shaft 20 geared at 14 to a cross shaft 11 carrying flanged wheels 9 running on rails to adjust the plate laterally. A pedal 63 controls the usual stop motion for the press.
Patent GB-430241-A (GB)
Title: Improvements in or relating to covers or containers for electrical switches, socket-couplings and the like
IPC: H01H23/04
Filed: 1933-11-11
Abstract: 430,241. Switch bases. CRABTREE, J. A., Endwood, Little Aston Park, Sutton Coldfield. Nov. 11, 1933, No. 31441. [Class 38 (v)] [See also Group XXXVI] Base-blocks or plates for supporting switches &c. are formed with one or a number of non- circular recesses to receive the bodies or covers of the units. As shown a base-block a is formed with a rectangular recess a<1> to receive and locate both the cover member b and the body or block cl of the switch. Alternatively the skirt b<1> of the cover may be made to fit on the shoulder c<3> of the block c<1>, or the skirt may be deeper to surround the block completely.
Patent GB-1480583-A (GB)
Title: Measurement of surface temperature of rotating objects
IPC: G01D5/39
Filed: 1973-07-02
Abstract: 1480583 Temperature measurement using  fluorescence REYROLLE PARSONS Ltd 2 July- 1974 [2 July 1973] 31466/73 Heading G1A A temperature measuring arrangement for a moving body consists of a phosphor strip applied to said body, a light source for making the phosphor fluoresce and detection means for measuring the variation of the fluorescent light as dependent on the body temperature. A turbogenerator comprises stator housing 11, inner stator frame 12 and, with winding slots 14, stator core 13 separated by gap 16 from rotor 15 with a field winding. A circumferential strip of suitable phosphor, suspended in transparent lacquer is painted on rotor 15, leaving a calibration gap in the strip. Ultraviolet source 17 consists of 500 W mercury vapour lamp 18, concave mirror 18a, housing 21, lens 21a, heat filter 22, ultraviolet transmitting filter 21 and control phosphor 19 with ultraviolet transmitting filter 20. Battery 23 feeds stabilizer 24 and lamp ignition circuit 25 through changeover switch 23a. Battery charger/standby supply 26 is provided. Phosphor 19 has a constant response within the lamp housing temperature range and is connected by fibre light guide 28 to photodiode 29 maintained at constant temperature in control circuit 27 and its signal automatically or manually controls the lamp current through cir-  cuit 24. The detection means comprises photo-  multiplier 30, oscilloscope or meter 31, and stabilized supply 32. The ultraviolet light and the returning visible light from the fluorescing phosphor on rotor 15 are transmitted by fibre light guides 33, 34 in a common sheath. Photo-diode 29 and photo-multiplier 30 have green filters.
Patent GB-1102854-A (GB)
Title: Improvements in or relating to sheet-handling machines
Inventor: MULLER WOLFGANG
IPC: B65H31/10
Filed: 1966-07-13
Abstract: 1,102,854. Delivering sheets. DRUCKMASCHINENWERK PLANETA VEB. 13 July, 1966, No. 31492/66. Heading B6H. [Also in Division H1] A downward delivery pile height control device, comprises a constantly rotating resilient feeler, e.g. a brush 3, connected by a torsion spring 4 to the drive shaft 5 such that when the pile interferes with the brush 3 it turns relatively to a contact 1 on a carrier 11, also on shaft 5, so that the contact 1 is engaged by a contact 2 on the brush 3. Engagement of the contacts causes operation of the pile lowering mechanism.
Patent GB-980227-A (GB)
Title: Purification and/or concentration of material containing interferon
Inventor: FANTES KARL HEINZ
IPC: C07K14/555
Filed: 1962-08-16
Abstract: A material containing interferon is purified and/or concentrated by adsorbing the crude interferon at a pH less than 6 from an aqueous medium on to one or more alumino-silicate adsorbents having a high molar ratio of SiO2 to Al2O3, e.g. greater than 5 and preferably a particle size below 50 microns and subsequently eluting the interferon therefrom by means of an aqueous solution of an electrolyte at a pH greater than 5.5 For batch operation, the particle size of the alumino-silicate should be below 50, and preferably below 25, microns.  The alumino-silicate is preferably synthetic and should contain a proportion of alkali metal oxide, e.g. sodium oxide, in combined form in the ratio to alumina of 1 : 3 to 3 : 1. Adsorption is at pH 2 to 6 and, at pH above 5.0, the ionic concentration of the interferon solution should be not greatly in excess of isotonic.  Elution is preferably carried out at a pH not less than 6.0.  Aqueous solutions of buffers, e.g. disodium or dipotassium hydrogen phosphate of pH 7.5 and aqueous solutions of ammonium formate alkali metal and alkaline earth metal hydroxides, carbonates and bicarbonates, may be used.  The interferon may be recovered by freeze-drying the eluate or by adding a volatile precipitant such as a water-miscible alcohol or ketone to the eluate. The interferon may be produced by treating avian cells such as egg chlorio allantoic cells or whole chick embryos or mammalian cells such as monkey kidney or human amnion cells with influenza virus, Newcastle disease or fowl plague.
Patent GB-411476-A (GB)
Title: Improvements in or relating to knitting machines
IPC: D04B1/10
Filed: 1932-11-08
Abstract: 411,476. Knitting-machines. WILDT, E., HOLMES, H. H., and WILDT & CO., Ltd., Adelaide Works, Leicester. Nov. 8, 1932, Nos. 31541 and 33311. [Class 74 (ii).] Pelerine stitch-forming instruments mounted in the cylinder 12 or dial of a circular knitting- machine are selected individually or in pairs by a perforated jacquard strip 117 acting on selectors 14 and jacks 19. Each instrument is laterally offset to the right or left at its upper hooked end 23 and has a shallow yarn-receiving groove 22. The instruments 18 receive yarn at one feed and thereafter expand the sinker loops and hold them for transferring. Before reaching looptransferring position they may be again moved selectively to yarn receiving position on the selector cam 17 to accumulate untransferred sinker loops. A succession of feed and transferring positions may be spaced around the cylinder or along the bed. Fig. 2 (not shown) illustrates a suitable cam system for dial needles. A detachable extension ring 38 can be clipped on the cylinder of an existing machine to adapt it for occasional use as a pelerine machine having instruments 18 in the cylinder. Specifications 223,619, 293,059, [both in Class 74 (ii)], and 347,632 are referred to.
Patent GB-318786-A (GB)
Title: Improvements in and relating to magnetic separators
IPC: B03C1/14
Filed: 1928-10-31
Abstract: 318,786. Thompson, H. H., Davies, A. E., and Box, W. E. Oct. 31, 1928. Magnetic separators. - The magnet core g provided with windings h is secured to the under side of a bar f which is mounted on the flat tops of collars e mounted on the spigot portions d of fixed stub axles c on which rotate the ends b of a rotary drum a. Secured to the bar f is a bar or shoe j which is curved to conform to the surface of the drum a and provided with a projection k which extends between two spaced fingers l on a pole-piece m secured to the lower end of the core g. The magnet system is completed by n rectangular plate n secured to the bar f and which terminates in a curved lower edge p forming a pole shoe closely adjacent to the drum
Patent GB-617724-A (GB)
Title: Improvements connected with electric switch boxes
IPC: H01H19/64
Filed: 1946-10-24
Abstract: 617,724. Switch cases. SANTON, Ltd., and OWEN, W. G. S. Oct. 24, 1946, No. 31573. [Class 38 (v)] A box for mounting a range of rotary switches 18 of varying depths, comprises top and bottom die-castings 3, 4 having grooves 9, 10, respectively, in which is fixed, by mastic or pins, a variable-depth, sheet-metal side .member 12. The top casting 3 has an aperture surrounded by a groove 16 in which a shaped disc member 14, fixed to the switch 18 by screws 17, is secured by mastic. Gaskets may be used to make the box water-tight.