baber/WOPTO huggingface dataset:
Patent GB-852131-A (GB)
Title: Improvements in or relating to manifolding papers
Inventor: PHILLPOTTS GEORGE CORDERY
IPC: B41M5/136
Filed: 1956-04-09
Abstract: 852,131. Manifold copying paper; web-coating apparatus. CARIBONUM Ltd. Feb. 27, 1957 [April 9, 1956]. No. 10759/56. Classes 96 and 140. Manifolding sheet material comprises paper carrying a substantially colourless transferable non-acid coating including at least one N- substituted mono- or di-leucauramine (other than a halo-substituted one as claimed in Specification 788,427 or 804,087) which is capable of producing colour when brought into combination with a substantially colourless non-transferable coating carried by a sheet of copy-receiving paper. The substituted leucauramine is preferably carried in an oil or wax vehicle or the like, e.g. methylcyclohexanol phthalate or adipate, tributyl citrate, or dibutyl tartrate. The second coating includes an acid firing substance for the substituted leucauramine, preferably phosphotungstic, silicotungstic or phosphomolybdic acid, or alkali metal salts thereof. The colourforming coating is preferably applied over a barrier coating to prevent its absorption into the paper. Examples I and II describe barrier coating compositions consisting of ammonium alginate, aqueous ammonia and zinc oxide. Examples III to VI describe colour-developing coatings and Examples VII to IX receptive non-transferable coatings. A typical colour developing coating is prepared by pouring a hot solution containing phenyl leucouramine, mineral oil, paraffin wax and methylcyclohexanol phthalate into a hot aqueous, alkaline solution of gelatine containing calcium carbonate and titanium dioxide. The alkali prevents discoloration of the coating before it comes into contact with the acid non-transferable coating. If desired a bactericide e.g. Myocide may be added to prevent mould formation in the composition. Many other suitable substituted leucauramines are mentioned and structural formulae are given for a number of them. A typical non-transferable receptive coating consists of dextrin, blanc fixe, water, phosphotungstic acid, tannin and dibutyl tartrate. A particularly suitable method of applying the colour developing coating is described with reference to Fig. 1 of the drawings accompanying the Provisional Specification. A web of paper 1 having one or more barrier layers is fed to the nip of a heated drying roller 2 and a rubber-covered printing roller 3 and led away via a roller 4 after contact with most of the surface of the drying roller. The printing roller is supplied with coating emulsion 8 from a trough 7 by means of a knurled roller 6, and if desired a rubber distributing roller 5. Before being wound up the paper may be sprayed with a solution of gum arabic or dextrin as described in Specification 757,136. Specifications 503,695, 646,926, 666,437, 666,438, 702,063, 710,597, 712,216, 717,805, 731,443, 732,284, 738,512 and 849,103 also are referred to.
Patent GB-667537-A (GB)
Title: Improvements in and relating to connecting rod assemblies for compressors
IPC: F16J1/22
Filed: 1950-05-02
Abstract: 667,537. Connecting rods. BRITISH THOMSON-HOUSTON CO., Ltd. May 2, 1950. [May 12, 1949] No. 10800/49. Class 122(i). The wrist pin has a cylindrical longitudinal passage 5 containing a tapered pin 12 which passes through an aperture 13 in the end of the connecting rod 2, this end projecting into the pin through a transverse slot 6. The surfaces of the pin 12 are formed by the intersection of two cylinders, each of the same section as the hole 5. In a modification the surface 11 is shaped to allow slight twisting of the connecting rod.
Patent GB-221760-A (GB)
Title: Improvements in continuous centrifugal dryers
IPC: B04B1/14
Filed: 1924-05-02
Abstract: 221,760. Baglin, C. A. May 2, 1924. Strainer separators. - A continuously-acting centrifugal dryer has a rotor, composed of a distributor and separator, the section of which is a curve of variable inclinations decreasing towards its greatest diameter. The boss B with the arms C carries the curved distributor A to which is attached by bolts K the multicellular ring E with thin perforated plates or grids F; a deflecting ring G is secured to the end of the ring E to direct the separated water to the compartment H, and the dried material to the compartment I of the casing. The material is admitted to the rotor at the small end through the shoot A'. The larger end is closed by the gate 0 which is held in position by means of the cam T and the rollers Y, Y' on the slide W. The wheel U and the cam T are rotated independently of the separator shaft and at a convenient speed, so that when the cam is in the proper position the pressure of the dried material moves the gate 0 and slide W and the material is discharged. The cam then closes the gate again. A compression spring D<1> may assist in opening the gate.
Patent GB-404179-A (GB)
Title: Improvements in or relating to bicycles
IPC: B62K15/00
Filed: 1933-04-11
Abstract: 404,179. Bicycles. PETTAZZONI, E., 4, Rue Chiudare, Bologna, Italy. April 11, 1933, No. 10851. [Class 136 (iii).] In a bicycle of the type having the front wheel of smaller diameter than the rear wheel, the handle-bar comprises a single central member 8 secured to the steering- stem, and two side arms 9 forming approximately a semicircle, the parts being arranged in such a manner that the handle-bar can be reversed about the axis of the steering-stem, and in the reversed position is located partly under and between the rider's thighs. The crank shaft 6 is arranged at or near the point where the front fork 1 and the head 3 adjoin, so that a vertical line from the centre of the shaft passes through the small front wheel. The upper frame member 4 has a double or slotted part under the saddle for the passage of the rear wheel. The saddle support 10 may be replaced by an upwardlycurved support to accommodate a taller rider, the handle-bar preferably then being reversed.
Patent GB-195872-A (GB)
Title: Improvements in the compression of fluids
IPC: F04D17/18
Filed: 1922-04-19
Abstract: 195,872. Hepburn, H. A. April 19, 1922. With admission and discharge at periphery.-A compressor transforms part of the kinetic energy of the entering fluid into pressure energy by the action of the centrifugal force caused by the constrained motion of the fluid in a curved path and the action of a spinning mass of fluid kept in rotation inside the compression chamber. The chamber shown in Fig. I. has a tangential inlet 1, a discharge passage 4 and a hinged panel 2. At starting, the panel 2 is depressed by the spring- controlled spindle 3 to close the passage 4, and thus set up a spinning mass of fluid in the body of the chamber. When the pressure rises sufficiently the panel 2 is forced back to open the discharge passage 4. A pipe 5 with a valve 13 may connect the centre of the spinning fluid with the inlet 1. Pivoted deflectors 6 in the chamber are controlled from outside, and the casing may have cooling webs. A number of chambers may be arranged in series with coolers between suceessive chambers. In the modification shown in Fig. III. the spinning fluid is maintained in rotation by blades 9 attached to parallel discs and to the hollow shaft 10. Passages 12 communicate between the centre of the shaft an'd the spinning fluid. The shaft is rotated by means external to the compressor.
Patent GB-854879-A (GB)
Title: Improvements in the manufacture of shaped containers
Inventor: SENIOR HENRY
IPC: B65D83/00
Filed: 1956-04-10
Abstract: 854,879. Containers ; stoppers. BRITISH XYLONITE CO. Ltd. April 3, 1957 [April 10, 1956], No. 10943/56. Classes 66 and 125(3). A container body 1, open at the base, is injection moulded from synthetic plastics material, e.g. polyethylene, and the base end is later closed by attaching to it a base element 7 the outer portion of which is crimped round the lower end of the body wall of the container. The container walls may be resilient, or rigid as in Fig. 3. A base element of plastics material thicker than the body wall may be fitted, the joint between the two parts being welded or fixed by adhesive, Fig. 2 (not shown). The container body may be of a vinyl plastic and the base of sheet metal or board, shaped either flat, concave, convex or undulating. As shown in Fig. 3, an oil can has a metal base which is flexible to expel the oil. According to the Provisional Specification, the body 1 may be formed at its lower end with a peripheral flange and a disc of plastics material secured to the flange by adhesive or high frequency welding. Specifications 680,815 and 782,639 are referred to.
Patent GB-1025799-A (GB)
Title: 2-phenylcyclopropylguanidine
Inventor: AUGSTEIN JOACHIM
Filed: 1964-03-16
Abstract: The invention comprises 2-phenylcyclopropylguanidine, and pharmaceutically acceptable acid addition salts thereof.  The compound may be prepared from 2-phenylcyclopropylamine by (a) cyanamide or dicyandiamide, or (b) reaction of the amine with an S-alkyl-isothiouronium acid addition salt, or (c) reaction of the amine with an acid addition salt of 1-amidino-3,5-dimethylpyrazole. Pharmaceutical compositions having anti-hypertensive activity, for oral or parenteral administration, comprise a compound of the invention together with a pharmaceutical carrier.  The compositions may be in the form of tablets, capsules, elixirs, suspensions, and solutions.
Patent GB-183217-A (GB)
Title: Improvements in and relating to methods of refining silicon steel and other metals and alloys
IPC: C21C7/00
Filed: 1921-04-15
Abstract: 183,217. British Thomson - Houston Co., Ltd., (General Electric Co.). April 15, 1921. Dry process of refining metals and alloys.- Metals or alloys, particularly silicon steel for use as magnetic material, are refined by eleotromagnetically expelling slag particles from the molten metal and thereafter mechanically separating the refined molten metal from the supernatant layer of slag. The molten metal is subjected, subsequent to any chemical purification, to the action of a periodically varying field adapted to cause the slag particles to rise to the surface. An induction furnace in which the. process may be carried out comprises an annular crucible 1 provided with a refractory cover 9 and surrounding a magnetic core 2 having a flat primary winding 3. The pouring spout 12 communicates with the crucible near the bottom. A chemically-refined molten charge may be fed to the furnace, or a charge of scrap or other material may be melted directly therein, chemically refined, and then subjected to the slag-expelling process.
Patent GB-740122-A (GB)
Title: Improved window frame
Inventor: SHANKS FRANK ERNEST
IPC: E06B1/06
Filed: 1954-04-15
Abstract: 740,122. Windows. SHANKS & SONS, Ltd., E. O. April 15, 1954, No. 11111/54. Class 20(3). In a wooden window frame having at least two glazing spaces, the frame members 11, 12, 13, are so formed that the glazing apertures may receive a fixed light 20 or a sub-frame 19, the latter either being hinged as at 24 or forming a fixed light. The frame members are stepped to form surfaces 17, 22, and additionally stepped to form surfaces 33, 21, the latter having a ridge 23 provided thereon which projects into the glazing aperture a distance less than the surface 22. In a frame having a mullion and transom to form four glazing apertures the transom may have either its upper or lower surface formed without the ridge 23 if the corresponding glazing apertures are to receive fixed lights only. Sealing and weathering grooves 25, 31, and 32 and wall engaging grooves 29 may be provided.
Patent GB-438408-A (GB)
Title: Process for making readily soluble complex theophylline compounds
IPC: C07D473/08
Filed: 1935-04-10
Abstract: Complex water-soluble compounds of therapeutic value are obtained by reacting one molecular proportion of equimolecular theophylline-ethylenediamine, or its components, with not more than one-fifth of a molecular proportion of a C : C- di- or C : C : N-trisubstituted barbituric acid.  The reaction may be effected by rubbing up the constituents, if desired with the addition of water or an alcohol as solvent.  Examples are given of the interaction of (1) theophylline monohydrate (1 mol), 5 : 5-phenylethyl-barbituric acid (\ba1/10\be mol) and ethylenediamine hydrate (1 mol) in water; (2) theophylline-ethylenediamine monohydrate (1 mol) and 5 : 5-phenylethylbarbituric acid (\ba1/10\be mol) in water; (3) theophylline monohydrate (1 mol), 5 : 5-phenylethyl-barbituric acid (\ba1/7\be mol) and ethylenediamine hydrate (1 mol) in alcohol; (4) theophylline monohydrate (1 mol), C : C-diethylbarbituric acid (\ba1/5\be mol) and ethylenediamine hydrate (1 mol) in alcohol; following by drying in vacuo in each case.  Other barbituric acids mentioned are C : C-isopropyl-b -bromallyl-, diallyl-, isopropylallyl-, phenylallyl-, and D <1\1.2>-cyclohexenylethyl-barbituric acids and C : C-phenylethyl-N-methyl-barbituric acid.
Patent GB-1457743-A (GB)
Title: Particle size analyser
IPC: G01N15/02
Filed: 1973-03-07
Abstract: 1457743 Particle size analyzer NATIONAL RESEARCH DEVELOPMENT CORP 6 March 1974 [7 March 1973] 11209/73 Heading G1A In a particle size analyzer of an aerosol, light from a laser 1 is directed via a step-wise rotating mirror 4 on to a plurality of stationary mirrors 5 positioned about an ellipse. One principle focus of which contains the aerosol system to be investigated, while the other focus contains the rotating mirror 4. The light scattered by the aerosol system is received by a photo-multiplier 3. The average particle size &c. can be computed from the detector's output signal for the various angles of incidence from the various stationary mirrors 5. The description also discloses a circuit for controlling the scanning &c. of the stepwise motor.
Patent GB-902050-A (GB)
Title: Improvements in or relating to electric network protection systems
IPC: H02H1/00
Filed: 1960-03-30
Abstract: 902,050. Protective arrangements. CHARBONNAGES DE FRANCE. March 30, 1960 [April 9, 1959; Feb. 16, 1960], No. 11276/60. Class 38 (5). A protective arrangement comprises a highfrequency generator 49 for supplying a monitoring current to a protected network and fault detection means responsive to a voltage dependent on the monitoring current which flows when a fault occurs and to a reference voltage dependent on the voltage of the generator 49 to produce an output signal which is a function of the resistive component of the monitoring current and effective to cause the tripping of a circuit-breaker 53. In the arrangement shown, the reference voltage is derived from a phase shifting circuit 41, 42 and auxiliary transformer 43 connected across the output transformer 7 of the high-frequency generator 49. This voltage is limited by resistors 59, 60 and Zener diodes 44, filtered by a rejector circuit 45, and applied to a detector circuit between the centre tapping of the secondary winding 16 of a current transformer 8 and the midpoint 36 of an arrangement comprising diodes 18, 19, resistors 30, 31 and capacitors 26, 27. It is stated that the output of this circuit is a function of the resistive component of the monitoring current flowing through the primary winding of the current transformer. When a short-circuit occurs, the relay 48 connected to the detection circuit is sufficiently energized to close the tripping circuit of a circuit-breaker 55. To compensate for the resistive component of the monitoring current which would flow through the windings of the power supply source (not shown) under normal conditions, the current transformer 8 may have an auxiliary primary winding 11 opposing the main primary winding and connected in series with a rheostat across the output conductors of the high-frequency generator. The Complete Specification describes and shows many modifications of the above arrangement including various arrangements for deriving the reference voltage, the use of amplifying transistors in the detection circuit, the use of a transistorized relay in place of the relay 48, Figs. 3, 4 and 5 (not shown), the use of two detector circuits for the protection of a threephase supply network, Figs. 1, 3, 4 and 5 (not shown), and the selective protection of a number of branch circuits using a common highfrequency generator and individual detector circuits, Figs. 5 and 8 (not shown).
Patent GB-987514-A (GB)
Title: Improvements in or relating to joints in metal-sheathed mineral insulated electric cables
Inventor: TOMLINSON FREDERICK WILLIAM
IPC: H01B7/16
Filed: 1963-03-21
Abstract: 987,514. Insulating cable joints. PYROTENAX Ltd. March 18, 1964 [March 21, 1963], No. 11282/63. Heading.H2E. A cable joint for single or multicore metal sheathed cables comprises cable cores E which are mechanically and electrically connected together by a butt scarf or lap joint and surrounded by a layer of mineral insulation G such as magnesia, steatite or aluminium oxide which is closely surrounded by a malleable metal sleeve F of sufficient length to be connected to each cable sheath B of cables A and A<SP>1</SP>. Moisture is driven off through a breather hole F<SP>1</SP> by heating the cable progressively towards the joint and a reducing operation is performed on the sleeve F which compresses the mineral insulating material G within it. The sleeve can be reduced by forming peripheral grooves F<SP>2</SP>, swaging, or by drawing down both the cable and sleeve. The ends of sleeve F are externally tapered at F<SP>3</SP> to facilitate drawing the cable through dies in the application of a polyvinyl-chloride servings. The above process can also be applied to metal sheathed plastic covered cables (Figs. 12 and 13, not shown) and to partly processed cables (Figs. 14 and 15, not shown).
Patent GB-898636-A (GB)
Title: Improvements in pneumatically operated servomechanism
IPC: B29C48/92
Filed: 1960-03-31
Abstract: 898,636. Fluid-pressure servomotor-control systems. UNITED STATES RUBBER CO. March 31, 1960 [May 6, 1959], No.11367/60. Class 135. [Also in Groups XIX and XXXV] In a servo system the output signal from a pneumatic controller is fed to a motor which positions a movable member and the controller continuously receives a feedback signal having a component which represents the position of the member and an opposing component which represents the velocity of the member. In one embodiment, Fig. 2, the invention is described as applied to gauging the thickness of the rubber stock A of a calender roll. A nozzle 11, 12 is carried by a spring-loaded diaphragm 19 and directs a jet of air against the surface 94 of the rubber stock A. The nozzle back pressure in the chamber 20 is transmitted to the chamber 54 of a pneumatic stack type null-balance controller, the chamber 50 of which receives a desired value pressure signal. The pressure in the controller pilot valve chamber 70 constitutes the output signal of the controller and is fed via the line 90 to the space 21 below the diaphragm 19 to effect follow-up movement of the nozzle 11, 12. The movement of the diaphragm 19 causes the pressure in the chamber 20 to change in the opposite sense to that caused by a thickness change of the rubber stock A so as to introduce a negative velocity feedback component into the signal transmitted to the controller. The diaphragm assembly 68 of the pilot valve of the controller comprises a porous layer which is held between two impermeable layers and allows connection of the chamber 70 to atmosphere. A rod 28 is connected to the diaphragm 19 and carries a valve member 29 which controls an exhaust opening in the bellows 30 and the chamber 45 of a controller 10, the diaphragm assembly 36, 37 of which controls a supply-exhaust valve 39, 41 to determine the pressure in the relay valve chamber 47 from which the output signal is taken to a gauge 24 which continuously indicates the thickness of the rubber stock A. The controller 10 is carried by an I-bar, attached at each end to a mounting plate each carrying a spring-loaded shoe having a curved surface which contacts the surface of the calender roll and assumes correct alignment of the controller. The output signal from the controller 10 may be fed to an indicator, a recorder, and a differential pressure transmitter which controls pressure-actuated switches in the circuit which controls the starting and stopping of the calender roll screw-down motor. The arrangement is such that if the thickness deviation is greater than 2 mils. the screw-down motor is driven continuously in the direction to correct the deviation for deviations between 0.75 and 2 mils. the screw-down motor is operated intermittently for periods determined by the setting of a time delay relay. If the deviation is less than 0.75 mils. the screw-down motor remains inoperative.
Patent GB-422904-A (GB)
Title: Improvements in or relating to a method of and means for making electrical measurements, particularly for geophysical investigations
IPC: G01V3/02
Filed: 1933-04-18
Abstract: 422,904. Current and pressure meters; prospecting for minerals. APPLIED GEOPHYSICS, Ltd., 18, St. Swithin's Lane, London. April 18, 1933, Nos. 11392 and 11393. Void [Abridged as open to inspection under Sect. 91 of the Acts, April 18, 1933]. [Class 37] A method of separating and measuring or recording potential differences due to opposed E.M.F.'s operating in the same circuit comprises connecting circuits in parallel across points between which the E.M.F.'s prevail, one circuit including a rectifier adapted to pass currents due to one E.M.F. and the other circuit including a rectifier adapted to pass currents due to the other E.M.F. The method is stated to be applicable in geophysical investigations, an applied E.M.F. being compared with the polarization E.M.F. set up by various materials in the subsoil. In the arrangement shown, two valve oscillators 1, 2, with amplifiers 3, 4 deliver current to the primary windings 5, 6 of a transformer T, in the common secondary winding 7 of which low-frequency oscillations are produced. These are converted to unidirectional pulsations by a rectifier Vo and applied to electrodes E1, E2 inserted into the ground. The applied E.M.F.'s are stated to be measured by a galvanometer G1 connected between the electrodes through a rectifier V1 and resistance R1, and the polarization E.M.F's. by a galvanometer G2 connected through an oppositely-directed rectifier V2 and resistance R2. From the data obtained, the nature of the underlying strata are deduced, and it is stated that the position of fresh water horizons or of junctions of geological formations can be calculated.
Patent GB-251657-A (GB)
Title: Improved gearing for high transmission ratios
IPC: F16H1/20
Filed: 1926-04-30
Abstract: 251,657. Forkardt, P. April 30, 1925, [Convention date]. Milling-cutters; gear-cutting; chucks. - In toothed reduction gearing, a driving-wheel a carrying an internal worm thread gears with a bevel wheel b, preferably globoid, on an axis inclined or perpendicular to the worm axis but not intersecting such axis, the bevel wheel not projecting appreciably beyond the interior of the wheel a. The wheel b is preferably out by a milling-cutter of the form of the wheel a, but with backed-off teeth. The invention is shown applied to chucks for drilling and boring machines, lathes, &c. in which, as shown in Fig. 4, the bevel wheel shaft carries a worm c driving a worm-wheel d to which is secured a plate provided with flat spiral grooves e, or, in a modification, a series of cam grooves, engaged by projections on the jaws f. In the form shown in Fig. 14, the bevel shaft is screwed to engage within a longitudinally movable rack z<1> carrying inclined teeth engaging corresponding teeth on one jaw f. The rack z<1> is geared to similar racks z controlling further jaws f by a central pinion d engaging straight rack teeth on the edges of the racks z, z<1>. The wheel a may be manually operated or be driven by a spur or bevel wheel or worm i rotated by an electromotor.