baber/WOPTO huggingface dataset:
Patent GB-1077967-A (GB)
Title: Basic refractories
Inventor: DAVIES BEN
Filed: 1965-10-07
Abstract: A burned, ceramically-bonded magnesite basic refractory shape is made from synthetic magnesia grain comprising MgO, CaO, SiO2 and B2O3, the grain analysing (oxide basis) by weight, at: at least 90% MgO and not more than 5% CaO; a maximum B2O3 content of (a) 0.05% when the CaO to SiO2 ratio is less than 1.6 to 1 and the SiO2 content is over 1%, and of (b) (C + S)2/100, (where C = percentage CaO and S = percentage SiO2 in the grain), when the CaO to SiO2 ratio is from 1.6:1 to 4:1 at SiO2 contents above 1%, and when the CaO to SiO2 ratio is below 3:1 at SiO2 contents up to 1%, the balance being R2O3 materials (i.e. Fe, Al, Cr).  A binder, e.g. waste sulphite liquor, up to 5% b.w. may be added to the grain, and the final shape may be impregnated with tar or pitch.  Several specific examples are described, and excess boron may be eliminated during firing by incorporating an alkali metal compound in the batch, a volatile alkali metal borate being formed.  Two examples illustrate the removal of boron.  In one, the B2O3 content of a batch of commercial dead-burned magnisite comprising 96% MgO with CaO, SiO2, Al2O3 and Fe2O3, was reduced from 0.14 to 0.03%, using up to 1.0% Na2CO3 and firing at 3050 DEG  F.  In the other, a magnisite made according to Specification 926,148 had its boron content reduced from 0.12 to 0.012% using 1% of each of NaCl, NaF and Na2CO3.
Patent GB-932589-A (GB)
Title: Photographic printing process and apparatus
IPC: G03C5/18
Filed: 1960-12-12
Abstract: 932,589. Photographic copying by infra-red radiation. EUGENE DIETZGEN CO. Dec. 12, 1960 [July 7, 1960], No. 42629/60. Class 98 (2). A graphic original is copied on to a raysensitive sheet containing a diazo compound and a coupling component, and being capable of conversion to a stable visible condition upon exposure to ammonia, the sheet also containing a developing component (e.g. urea) capable of evolving ammonia when heated, the copying operation being performed by exposing the two sheets together to infra-red radiation. This heats the graphic areas sufficiently to cause the evolution of ammonia. The sheet may also be irradiated by ultra-violet light, before, after, or together with the exposure to infra-red, the u.v. light causing desensitizing or stabilizing of those parts of the sheet other than those in registration with areas of the original to be copied. In the apparatus shown, a sandwich formed of the two sheets is fed in at 27, passes round a drum 29 containing an infra-red source by means of a moving belt 31, and out at 28. The sandwich, or, if desired, just the copy sheet, is then fed into the apparatus at 27<SP>1</SP> round a drum 33 containing an ultra-violet source, by means of the belt 31, and out at 28<SP>1</SP>. The two drums are interchangeable. The u.v. and i.f. sources are provided with reflectors which direct the rays over the required area. It is also possible for both types of sources to be placed in one drum and at least one of the sources may be placed outside the drum on the other side of the moving belt, which is then transparent to that type of radiation.
Patent GB-1255512-A (GB)
Title: Moisture separating and steam reheating apparatus
IPC: B01D45/08
Filed: 1969-08-27
Abstract: 1,255,512. Steam separators. WESTINGHOUSE ELECTRIC CORP. 27 Aug., 1969 [30 Sept., 1968], No. 42702/69. Heading BIT. [Also in Division F4] A moisture separating and steam reheating apparatus comprises a tubular casing 12 containing partitions 18, 19 adjoining moisture separators 23, 24 the partitions and separators dividing the casing into moist steam collecting chambers 15, 16 having moist steam distribution means 28, 29 supplied through inlet 26, and a central moisture-free steam collecting chamber 17 containing reheaters 32, 33 to heat demoisturised steam to a dry and superheated state, the superheated steam discharging through an outlet 45. Moist steam from inlet 26 passes through manifolds 28, 29 to be distributed in a plurality of jets through openings 30, 31 which jets impinge on the casing 12 causing initial moisture separation. Remaining moisture is removed by impingement, on an array of horizontally spaced V-shaped plate members 47 which form the separators 23, 24, the moisture drops then flow through outlet 43 as shown by the broken arrows. Moisture-free steam passes through reheaters 32, 33 formed by the U-tubes 34 which use as the heating medium steam fed through an inlet 40. In another embodiment. Fig. 4 (not shown), each separating structure is formed from two overlapping plate arrays and the reheater comprises a single bundle of tubes (56).
Patent GB-921082-A (GB)
Title: Improvements in the production of regenerated cellulose textile materials
IPC: D01F2/10
Filed: 1961-11-29
Abstract: Regenerated cellulose textile materials are made by extruding a viscose containing a very small proportion of a polyalkylene oxide or of a compound containing a polyalkylene oxide chain into a coagulating bath of dilute aqueous sulphuric acid and sodium sulphate containing less than 20 g./l. of sulphuric acid and 0-0,5 g./l. of zinc sulphate calculated as the anhydrous salt. The gamma value of the viscose may be 65 or higher, and the proportion of the polyalkylene oxide or polyalkylene oxide chain may be less than 0,5% of the weight of the dry alpha cellulose content of the viscose, preferably 0,2-0,4%.  The polyalkylene oxide may be polyethylene oxide and the molecular weight of the polyalkylene oxide or polyalkylene oxide chain may be 1,000-1,500. Desirably, the coagulating bath contains 10-20 g./1. sulphuric acid.  The tow may be stretched on rollers after leaving the bath. The proportion of zinc sulphate needed to effect a given retardation of the regeneration of the cellulose is reduced by the method of the invention.
Patent GB-1391496-A (GB)
Title: Punching machines for metal and other amterial
IPC: B26F1/02
Filed: 1972-09-18
Abstract: 1391496 Punching W E GALE 24 Aug 1973 [18 Sept 1972] 43120/72 Heading B3W The body of a machine for punching sheet, particularly metal, has a deep throat, at the open end of which is a fixed die 18 and a punch 17 carried by a plate 13, pivoted to the body at (11) (Figs. 1 and 3, not shown), and actuated by a pivoted handle 21, and includes a pair of plates 3, 4 converging towards the open end of the throat and connected by tie rods 7. The handle 21 is pivoted at 22 to a link 23 itself pivoted to ribs 14, 15 reinforcing the plate 13 and at 20 to a thrust plate 19 secured to the tie rods 7. The stroke of the punch is variable by means of a stop 31 mounted for vertical adjustment in arms 26, 27 pivoted to the ribs 14, 15. Stripper plates (34), Fig. 1, are mounted on pivot shafts carried by lugs 35. A work support 10 extends laterally from a mounting 9 of the die 18. Springs 25 aid the return stroke of the punch.
Patent GB-903488-A (GB)
Title: A relatively dense aggregate material, and method for the production thereof
IPC: C22C1/04
Filed: 1960-12-16
Abstract: A material having an aggregate density of not less than 12 gm./c.c. and particularly for use as a screen for harmful radiations or as a counterweight or balancing material consists of tungsten particles mechanically retained in a matrix of lead or lead alloy.  The material may be made by one of the following methods: (1) pressing a homogeneous mixture of tungsten and lead particles preferably with simultaneous heating; (2) heating a homogeneous mixture of tungsten and lead particles to melt the lead and then allowing the binder to solidify; (3) introducing powdered tungsten into molten lead so that the powder particles contact each other and then allowing the binder to solidify; (4) in filtrating a loose mass of tungsten particles with molten lead. Lead alloy may replace the lead in each of the above methods.
Patent GB-881420-A (GB)
Title: Process for production of cyanuric chloride
Filed: 1959-12-21
Abstract: In producing cyanuric chloride by polymerization of cyanogen chloride, free from HCN, in the gas phase, the catalyst is active carbon from which oxides, hydroxides, and salts of the metals of Periodic Groups 1 and 2 have been removed to such extent that the pH of an aqueous extract, obtained by extraction of the combustion ash of the active carbon with water in amount 100 times the weight of the ash, is no greater than 8, preferably 7,6 or less.  The polymerization may be effected at 300-450 DEG C., and the active carbon, which may have been activated by any known method, may be granular or powdered; the latter may be fluidized. The metal compounds may be removed by acid treatment and washing, dialysis, or electrodialysis.  Suitable acids are acetic, propionic, lactic, hydrochloric, sulphuric, or hydrofluoric, and as described commercial active carbon is boiled with 20% HCl for at least 48 hrs. and washed for at least the same period.
Patent GB-1235050-A (GB)
Title: Improvements in or relating to digital feed control
Inventor: UHLIG JOACHIM
IPC: G05B19/416
Filed: 1969-09-02
Abstract: 1,235,050. Programmed control of machine tools. STARKSTROM-ANLAGENBAU KARL-MARXSTADT VEB. Sept. 2, 1969, No.43408/69. Heading G3N. A digital feed control system for a continuous path numerial control system, having an interpolator wherein the distance increasements are of constant length, maintains the feed speed constant by variation of the interpolation speed of the interplator. As shown, incremental x and y axes pulses #X, #Y, from an interpolator, not shown, are fed to counters, Z1, Z2, the binary coded outputs of which are connected to AND-gates UV1, UV2 which are enabled by the cross-connected end-of-count signals. The outputs of the AND-gates are coupled in corresponding pairs to OR-gates OV1, so that the signal to the inputs of a comparison circuit V represents the ratio of the axes increment pulses, that is the commanded slope of the interpolated curve. The comparison input of the circuit V is fed with values 1-n of increasing magnitude from gates U1-Un enabled by cyclic pulses tl-tn, through OR-gate OV2. When the comparison value is greater than the quotient, the circuit V generates a signal L1 clearing counters Z1, Z2 and enables the comparison value through a gate UV3 into a store Sp. The contents of the store Sp modifies a demand interpolator rate RJ, through a counter VE, so that the actual interpolator rate RJ<SP>1</SP> is such as to give a desired path velocity.
Patent GB-1135299-A (GB)
Title: Distributed field stator for universal or d.c. motors
IPC: H02K3/18
Filed: 1966-09-29
Abstract: 1,135,299. Core constructions. SKIL CORP. 29 Sept., 1966 [11 Oct., 1965], No. 43594/66. Heading H2A. A laminated core 10 has a polar axis 12 and quadrature axis 14; it is provided with two slots 15 each having an arcuate throat 18a, flat surface 15a and flat surface 18c. The two slots define a core projection 18 having tips 18b. Each slot is thus of recumbent U-shape in cross-section and has a depth at least as great as its greatest width, the width being measured along a radius of the stator core and the depth being measured at right-angles to a radius. The core also has a second pair of slots 22 each having a throat 24a, a surface 22a and a flat surface 24c. Side core projections 24 with tips 24b are thus formed. Each slot is thus of inverted U-section and has a depth at least as great as its greatest width, the width and depth being measured as before. Each flat surface 18c, 24c is inclined and extends away from the polar axis 12 towards quadrature axis 14. The slots thus extend generally circumferentially instead of radially. As shown, identical slots are provided at the opposite pole. Preferably, field core windings 20 are wound in slots 15, and field core windings 25 in slots 22. Alternatively, one formation can be wound in one slot 15 and the slot 22 on the other side of the axis, and the other formation in the remaining slot 15 and remaining slot 22. The field coils can be wound automatically, and because the winding tension tends to pull the coils into the slots, wedges or the like are unnecessary. Additional pairs of similarly-shaped slots and field coil windings may be provided at each pole.
Patent GB-1063348-A (GB)
Title: Braking the wheels of vehicles and aircraft
IPC: B60T8/32
Filed: 1964-10-29
Abstract: 1,063,348. Fluid pressure brakes. RE CHERCHES ETUDES PRODUCTION R.E.P. Oct. 29, 1964 [Oct. 30, 1963], No. 44130/64. Heading F2F.  A braking system for the wheels of a road vehicle or aircraft comprises a detector or feeler wheel 5 which may be an additional wheel or one of the main wheels and is adapted to be rapidly and alternately braked and unbraked, an accelerometer 7 associated with said detector wheel which is adapted to supply electric signals selectively to one of two stores 9 and 10 during the unbraked periods of the detector wheel, a servo-regulator controlled by the contents of the stores controlling the braking of at least one of the other wheels, and a rate of change of rotation meter associated with at least one of the other wheels also connected to the or one regulator to reduce the braking torque if the said one wheel tends to lock. As shown, a brake 2 of a main wheel 1 is supplied with hydraulic fluid through an electricallycontrolled servo-distributor operated by a conventional pilot's control 14. A feeler or detector wheel 5 is arranged to be intermittently braked and unbraked through an electrically-controlled valve 13. During the unbraked condition, the wheel accelerates and tends to resume the speed of a free-rolling wheel, the degree of acceleration being a function of the coefficient of friction between the wheel and the ground. This acceleration is measured by the accelerometer 7 which selectively and alternately charges to stores 9 and 10 through a mechanically or electrically operated bank of switches at a desired frequency. The switches are also arranged to alternately discharge said stores through an impedance matching device 11 into the servo-distributer. The servo-distributer thus provides a pressure controlled by the signals received from the detector wheel to the brake 2, said pressure being the maximum pressure remissable without wheel-locking and varying according to the value of ground/wheel coefficient of friction measured by the detector wheel. In a modified system, Fig. 3 (not shown), a braking system utilizes a set of four wheels each of which is controlled by its respective regulator and each of which is arranged in turn to act as a detector or feeler wheel controlling the regulators of the other wheels. In both systems, the wheel or wheels other than the detector wheel, are each provided with a decelerometer which controls the or the associated servo-regulator to reduce the braking torque should the wheel tend to lock.
Patent GB-1441865-A (GB)
Title: Method and apparatus for the heat treatment of pulverous materials
IPC: F27B7/20
Filed: 1974-10-11
Abstract: 1441865 Cement burning apparatus PREROVSKE STROJIRNY NARODNI PODNIK 11 Oct 1974 [29 Oct 1973] 44194/74 Heading F4B Apparatus for burning cement raw materials comprises two suspension preheaters 4 and 5, a suspension calcining furnace with burner 20, a rotary sintering furnace 2 with burner 21 and clinker cooler 3, a gas line 10 from the cooler to the calcining furnace, a gas line 9 from the calcining furnace to the preheater 5, a gas line 8 from the rotary furnace to the preheater 4 and fans 6 and 7 attached to the preheaters. Pulverulant raw materials introduced through weighing feeders 15 and 16 pass through the apparatus via feed lines 17, 18 and 19.
Patent GB-1049669-A (GB)
Title: Improvements in or relating to apparatus for testing the hardness of metal parts
IPC: G01N3/42
Filed: 1963-11-08
Abstract: 1,049,669. Grinding. COMPAGNIE DES ATELIERS ET FORGES DE LA LOIRE. Nov. 8, 1963 [Nov. 16, 1962], No. 44204/63. Heading B3D. [Also in Division G1] In apparatus for testing the hardness of metal parts, e.g. rolling-stock wheels R, there is provided clamping means 13 displaceable on the frame 15 to clamp the wheel R against movement; grinding means 4 reciprocable on a carriage 19 in a longitudinal direction parallel to the surface of the clamped wheel R and also movable towards and away from the wheel, an indenter device 5, 50 movable on the frame 1<SP>5</SP> in a transverse direction into and out of engagement with the surface, actuating means for carrying out the respective movements, a power source and control means connected with the power source and actuator means. The carriage 19 is moved along the frame 15 by pneumatic actuator means 17 and supports a grinding head carrier 18, which reciprocates across the carriage under the action of further pneumatic means 16, indenter means 5, 50 and a pressure gauge 7. In operation, the clamping means 13 is expanded to retain the wheel R in the required position, and the carriage 19 advanced towards the wheel R. Simultaneously the rotating grinding head 4 is reciprocated across the surface of the wheel R by the carrier 18, to grind off a strip. After a predetermined time interval, the carrier 18 is withdrawn and the ball indenter means 5, 50 is operated to test the hardness of the material. The various operations are time-controlled, and the stages indicated by different lights. The control means may be electrical, hydraulic, mechanical or pneumatic, pneumatic control means being described in detail with reference to Fig. 4 of the drawings (not shown).
Patent GB-986395-A (GB)
Title: Addendum applying device
IPC: A24D3/02
Filed: 1961-05-04
Abstract: An applicator device adapted to apply a fluid addendum to a moving tow comprises a hollow tubular member having a slot exit orifice, a duct connected to one end of the tubular member for the supply of addendum thereto and a mesh screen positioned exteriorly of the tubular member and over the exit orifice and arranged to maintain the tow out of engagement with the orifice. Embodiments are the same as described in Specification 986,392. Specifications 765,963 and 986,394 also are referred to.
Patent GB-1244353-A (GB)
Title: Monitoring device for the deposit of slubbing in cans on spinning machines
IPC: B65H54/80
Filed: 1968-09-18
Abstract: 1,244,353. Stop motion for sliver coiler. MASCHINENFABRIK RIETER A.G. 18 Sept., 1968 [27 Sept., 1967], No. 44263/68. Heading DID. A stop motion for a sliver coiling device including calender rolls 16, 17 is mounted on a rotatable intermediate disc gear (2) see Fig. 1 not shown, which supports an eccentric coiler gear (8) and comprises a stop motion disc 21 rotatable coaxially of the intermediate disc gear (2) and above the calender rolls, the disc being supported at two bearing points (23, 24) see Fig. 3 not shown, connected to a stationary part of the machine and separated around the circumference of the disc by an arc of less than 180 and at a third point on the opposite side of the disc, movement of the disc at which third point, in response to opening or closing of the calender rolls operates a stop motion. As shown the edge of disc 21 is provided with a circular groove in which a ball pin carried by a lever 29 engages, movement of the lever up or down operating a coiler stopping device. Calender roll 16 is mounted on a pivoted frame 27 and biassed by a spring 30 to move toward roll 17. A member 28 lies between frame 27 and disc 21 so that should there be no sliver, between the rolls, the rolls move together thus lifting disc 21, thus operating lever 29 and the stop motion. Should there be a lap on either calender roll the rolls move apart, disc 21 is lowered and lever 29 operated to actuate the stop motion.
Patent GB-1450081-A (GB)
Title: Detecting or processing electrical signals
IPC: H03F3/393
Filed: 1973-09-20
Abstract: 1450081 - Removing spurious pulses SIEMENS AG 20 Sept 1973 [20 Sept 1972] 44292/73 Headings G1N and G1U Spurious pulses are removed from a data signal, e.g. an ECG waveform, by an arrangement which, having detected the presence of a spurious pulse by the fact that its leading edge is sufficiently steep, effectively then zeroises the waveform for a pre-set period, e.g., 12msec., and then at the end of the pre-set period allows the waveform to return to its proper level smoothly, rather than abruptly, thereby both preventing the formation of secondary high frequency noise and reducing any long term transients resulting from the original spurious pulse. As shown in Fig. 2, an ECG waveform normally passes direct from a terminal 1, via an amplifier 19, to ultilisation devices 10, 11. The beginning of a spurious pulse with a sufficiently steep leading edge is detected by a differentiator 12, 13, rectifier 14 and threshold circuit 15, to set a 12msec monostable 16 on. This causes an FET 22 to conduct thereby applying 100% negative feedback to the amplifier 19 so that the data signal is zeroized. At the end of the 12msec period, FET 22 returns to its normal non-conductive state and the data signal is reapplied to the line 2. However, no abrupt change occurs because the amplitude of the data signal at the end of the 12msec period will be stored on a capacitor 24 and will be applied, via amplifier 19, in opposition to the data signal. Thus, the signal on line 2, which was zero during the 12msec reject period, gradually rises, as capacitor 24 discharges, to the valve of the data signal.
Patent GB-1311860-A (GB)
Title: Stretcher
IPC: A61G1/003
Filed: 1970-02-27
Abstract: 1311860 Invalid handling apparatus; rolling appliances STERO NV 27 Feb 1970 [27 Feb 1969] 44325/69 Headings B8B and B8H [Also in Division A5] A stretcher comprises a patient supporting belt 10<SP>1</SP> mounted on a frame, and belt driving means and frame propulsion means which are coupled together so that when the frame is propelled the patient supporting surface of the belt is moved at the same speed in the opposite direction. The belt is supported on the frame 35 (Fig. 6, not shown) by a drive roller 18 and guide rollers 16, 17. A body supporting plate 22 is attached to the frame (35) to prevent the belt 10<SP>1</SP> from sagging under the weight of the patient. The frame propulsion means comprises an endless belt 19 and is supported by a guide roller 20, support rollers 29 attached to the bottom of the frame (35) and a driving roller 21. The driving roller 21 and the belt driving roller 18 are driven by an operating mechanism consisting of a gear-wheel 27 operated by a handle 28, for driving a chain 25 round axles 23, and 24 on the driving rollers 18 and 21, and a tensioning cog 26. This moves the belt 10<SP>1</SP> in the opposite direction to belt 19 but at the same speed. The stretcher may have a cover.
Patent GB-1131223-A (GB)
Title: Improvements in and relating to lip seals
Inventor: METCALFE KENNETH
IPC: F16J15/32
Filed: 1964-10-30
Abstract: 1,131,223. Seals. PIONEER OILSEALING & MOULDING CO. Ltd. 1 Nov., 1965 [30 Oct., 1964], No. 44334/64. Heading F2B. In a seal comprising a flexible flange 14 having a sealing lip 24 urged radially by a garter spring 22 located in a groove 20 in an enlarged portion of the flange, the opening of the groove is at the side of the seal unexposed to the sealed medium, and is significantly narrower than the crosssectional diameter of the spring. The flange 14 extends from an L-section member 10 bonded to a metal casing 12. The seal may be of natural or synthetic rubber or plastics material and may be an internal or external lip type.