baber/WOPTO huggingface dataset:
Patent GB-705275-A (GB)
Title: Improvements in or relating to stiffened metal sheeting
IPC: E04G9/06
Filed: 1951-02-14
Abstract: 705,275. Shuttering &c. panels. WHITTALL, J. A. Feb. 14, 1952 [Feb. 14, 1951], No. 3536/51. Classes 20 (2) and 87 (1). [Also in Group XXXII] A metal panel for use as a form in easting concrete in situ or for flooring or walling has integral flanged edges of channel section 2 and stiffening ribs 5 the ends of which fit under the flanges and which divide the panel into rectangular zones. The ribs are of V section with flanges welded to the panel. Reinforcing lengths of wood or steel may be fixed within the channel edge. The panels are bolted together by bolts 8 through the edges and the form panels are tied to a supporting framework by means of holes 10 in the ribs 5.
Patent GB-657285-A (GB)
Title: Improvements in apparatus for reproducing on a variable scale sculptures or solid bodies and objects in relief
IPC: B44B1/04
Filed: 1949-02-09
Abstract: 657,285. Copying sculptures. RAFART, J. M. G. Feb. 9,1949, No. 3548. Convention date, Feb. 13, 1948. [Class 124] [Also in Group XXII] An apparatus for reproducing sculptures on a variable scale comprises a pair of horizontal bars swingably and adjustably mounted on a pair of feet; a pair of rotatable and longitudinally adjustable plates mounted on the bars; a vertical bearing support at one end of the bars; a fork rotatably mounted in the bearing at right angles to the support; a four pointed swivel joint connected to the fork; a second fork connected to the swivel joint; a pair of parallel rods, carrying a pair of sliding blocks, connected at right angles to the second fork; two parallel rods pivotally connected each to one sliding block at one end and at the other pivotally and axially displaceably connected to an operating lever pivoted at one end about the second fork at the junction of the slide block mounting rods, the angular displacement of the operating lever moving the blocks by an amount proportional to the length of the operating rods; and a vertical support on the bars at the end remote from the swivel joint. As shown, a pair of work carrying discs 6, adjustable lengthwise on a pair of parallel bars 1 which are angularly adjustable on feet 2, are rotated by a hand wheel 18. A block 21 mounted at one end of the bars 1 carries a vertical bar 22 on which is mounted a bearing 23 for a fork 25. A four pointed swivel joint 26 has one diametrically opposite pair of points engaging the fork 25 and the other pair engaging a second fork 27 carrying a pair of parallel rods 28, extending parallel to the bars 1, and has also pivoted to it an operating lever 35. A pair of sliding blocks 29 and 30, the former carrying a cutting tool 31 and the latter a contour follower 32 are mounted on the rods 28 and have pivoted to them parallel rods 33 and 34, the rod 34 being pivoted to the lever 35 at 44 and the rod 33, which is extendible, being axially slidable on the lever 35 at 43. A support 40, fixed to the bars 1 at the end opposite to the swivel joint acts as a guide for the free ends of the rods 28. For the copying of solid sculptures the rods 28 are used in the position shown in Fig. 2 and for copying reliefs in the position shown in Fig. 1; in the latter case the tool and contour follower may be moved automatically, Fig. 5 (not shown).
Patent GB-213726-A (GB)
Title: Improvements in flying machines
IPC: B64C27/04
Filed: 1923-02-06
Abstract: 213,726. Smith, R. B. Feb. 6, 1923. Screw and like propellers.-A lifting propeller for a helicopter comprises a hub 36, Fig. 1, connected by radial rods 35, 39 to a rim 37, and sector-shaped blades 31 or 32 adapted to be opened and closed by hinging one edge of each blade to a corresponding rod 35, each blade being of a curved cross-section to provide beneath it a pocket with an end wall 33 adjacent to the rim, the depth of the pocket decreasing towards the hub. The propeller frame is stiffened by adjustable inclined braces 38. In the complete machine shown in Fig. 1, two such propellers are carried bv inner and outer shafts 14, 15 respectively rotated in opposite directions and the opening of the blades 31, 32 and adjustment of their pitch are effected from a hand-lever in the car connected through a lever 81, Fig. 9, and intermediate mechanism to arms 53, 69 secured to rock-shafts 40, 41, Fig. 5, on the rods 39, these shafts carrying arms 42, 43 connected by links 45 to the opening edge of the corresponding blade. The intermediate mechanism is such as to allow of the adjustment while the propellers are rotating. For this purpose a connecting-rod 78 pivoted to the lever 81, is formed with a forked upper end 79 fixed to a two-part collar 75 engaging a circumferential groove 74 in a sleeve 72 slidably mounted on the fixed casing 16 of the shaft 15, and two rods 66 fixed at their lower ends to the upper flange 71 of the sleeve 72 are fixed at their upper ends to a collar 62, similar to the collar 75, engaging a. circumferential groove in a sleeve 55 slidably mounted on the shaft 15. Two guide, rods 59 slidable in apertures 60, Fig. 10, in the upper flange 56 of the sleeve 55, are fixed at their upper ends to the hub 36 of the upper propeller, and the rods 66 are guided by notches in the sides of the hub of the lower propeller. The sleeve 72 is thus caused to rotate with the lower propeller and the sleeve 55 with the upper propeller. The flange 56 carries radial studs 57, Fig. 10, for connection of links 54 for operating the arms 53, and the flange 71 is similarly connected to the arms 69.
Patent GB-1050554-A (GB)
IPC: C07D471/04
Filed: 1965-01-27
Abstract: 1,050,554. 5,6-Dihydro - pyrido[2,3-b][1,5]- benzodiazepines. DR. KARL THOMAE G.m.b.H. Jan. 27, 1965 [Jan. 28, 1964], No. 3612/65. Heading C2C. The invention comprises compounds of formula where R<SP>1</SP> and R<SP>2</SP> are the same or different and represent hydrogen or halogen or alkyl groups containing from 1 to 5 carbon atoms, their acid addition salts and the preparation thereof by condensing a 2-halonicotinic acid with an o-phenylene diamine of formula where R<SP>1</SP> and R<SP>2</SP> are as defined above.
Patent GB-510723-A (GB)
Title: Improvements in or relating to the condensation of steam
IPC: F28B9/00
Filed: 1938-02-05
Abstract: 510,723. Heating feedwater; surface condensers. ROBBINS, E. S. Feb. 5, 1938, Nos. 3703 and 10269. [Classes 64 (i) and 64 (iii)] For condensing steam, air or gas is used as a cooling medium and is then compressed and used as a heating medium. A pipe 11 supplies steam to serpentine tubes 13 in a chamber 10, and air enters through an elongated part 16 and escapes at 15; baffles at the sides of the condenser ensure that the air impinges on the steam tubes. The air then passes to a compressor in order to increase its temperature, and is thereafter utilised in a feed-water heater; the air may again be compressed and used in another feed-water heater. Subsequently, the air may be expanded in an engine and returned to the condenser. In a modification, the air or gas is passed through the tubes in the condenser, and the steam flows about them.
Patent GB-552635-A (GB)
Title: Improvements relating to the measurement of the time intervals between two electrical pulses
IPC: G01S13/14
Filed: 1942-03-20
Abstract: 552,635. Indicating proximity of earth or other bodies. STANDARD TELEPHONES & CABLES, Ltd. (International Standard Electric Corporation). March 20, 1942, No. 3717. [Class 37] In an arrangement for measuring the timeinterval between one of a series of pulses a and a variable pulse b, as in measuring distances by transmitted and reflected pulses, a current of duration t is compared with a similar current of duration (T-t) and continuous currents corres ponding-thereto are compared as to ratio so as to give the ratio t/T. The quantity T is controlled by a quartz crystal and is accurately known, and the ratio t/T is measured as a ratio of two resistances, Fig. 2, by moving the potentiometer-slider P until the instrument G reads zero. In Fig. 3, an oscillator OSC is used to generate in STO a saw-tooth oscillation which not only is used for generating reference pulses a in PG but effects scanning of the screen of the cathode-ray oscillograph CR at the same frequency. The former are supplied to the vertical plates of CR whereas the latter is effected by means of horizontal plates. A reference pulse applies a positive pulse from PG to make an indication a and by way of condenser C7 to the grid of valve V1, which becomes conducting and gives rise to a wave as in Fig. 1b. This discharges a condenser C5 in the plate-circuit of V1, the circuit including the grid of a valve V2 and the plate-circuit of a valve V3. At the end of interval t, the reflected negative pulse produces an indication b on the screen of CR and also is applied via C7 to valve V1 to render it non- conductive. Condenser C5 begins to charge at a rate determined by the time-constant of the circuit including valve V3, and when it causes V2 to become conductive, the voltage across resistance R1 causes a time-controlled pulse c to be indicated. The relay R across the potentiometer is energized by any unbalance there may be thereat, and closes contacts J or J2 to apply a potential to the grid of V3 and hence vary the time of charging of C5 and' the moment when V2 conducts, thus causing the indication c to be removed from the indication b. By adjusting the potentiometer until c coincides with b, the potentiometer becomes balanced, and R is de-energized, the ratio R3/R4 of the two potentiometer portions then giving the quantity t/(T-t). The potentiometer may be directly calibrated in terms of time or distance. The filter circuits including the inductances L1, L2 and capacities C1 ... C4 converting the rectangular waves of Figs. 1b, 1c into continuous currents of magnitudes corresponding to t and (T-t).
Patent GB-548705-A (GB)
Title: Improvements in internal-combustion engines
IPC: F02B75/02
Filed: 1941-03-19
Abstract: 548,705. Cylinders. COSTA, H. DA, and PLESSEY CO., Ltd. March 19, 1941, No. 3780. [Class 7 (ii)]  In a two-stroke engine cylinder having two or more inlet ports 14 and two or more exhaust ports 15 arranged alternately and equally spaced around the cylinder axis, the crown of the piston 10 is formed with a deflecting surface or surfaces 11 set back from the wall of the piston for at least each of the inlet ports, the surfaces each being curved as a segment of a circle in cross-section in a plane containing the axis of the piston. In one form, Fig. 3, the recess 11 is annular. In modifications, (a) recesses 12; Fig. 4, are formed by cylindrical intersections of the top of the piston, and either they are connected by an annular recess or the exhaust and inlet ports are at different levels ; (b) each inlet or exhaust port is replaced by a group of ports. The axes of the ports are preferably normal to the cylinder wall. Specification 467,094 is referred to.
Patent GB-239433-A (GB)
Title: Walking-stick seats and the like
IPC: A45B5/00
Filed: 1925-02-11
Abstract: 239,433. Lowe, Z. Feb. 11, 1925. Folding seats.-The handle portion D of a walking-stick seat is secured to the tubular lower portion E by a bolt and thumb-screw F, and can be detached and replaced by a seat member G provided with a central hole and a covering plate H. The lower end of the part E is provided with a spike J and flange K.
Patent GB-963641-A (GB)
Title: Improvements in vibrating fluidized systems for conveying or treating solid materials
IPC: F25D13/06
Filed: 1961-02-01
Abstract: 963,641. Heating or cooling granular material. CHAIN BELT CO. Feb. 1, 1961 [Feb. 15, 1960], No. 3853/61. Heading F4U. [Also in Divisions B1 and B8] Apparatus for vibrating and fluidising granular materials to improve the mixing for heat transfer, or contact with gases in catalytic processes &c. comprises a conveyer trough 44, Fig. 1, divided longitudinally into a number of compartments by at least one baffle plate 45. The trough is mounted on springs 46 and vibrated by out-of-balance weights 31 in a system producing vibrations having horizontal and vertical components. Air from a plenum chamber 40 fluidizes the material through transverse slits 47 which may be arranged to direct the material forwardly. The arrangement produces a circulation of material in the compartments so that material entering by shoot 48 circulates prior to passing over the top of each baffle 45, the heavier particles thereby tending to remain in the compartments for a longer period of time to improve heat transfer &c. In apparatus adapted for heating or cooling granular material by the addition of heat-exchange jackets 64, Fig. III, and tubes 66, the fluidizing gas is fed to the base through labyrinth passages 60 disposed on each side of the trough 59. The baffle plates 68 have vertically adjustable extensions 69, 70 to control the flow of material, the lower extension 70 being raised to permit a controlled release of coarse particles so that the heat transfer for different sized particles may be equalized.
Patent GB-418789-A (GB)
Title: Improved method of and means for the recovery of pure metallic magnesium from crude magnesium or magnesiferous materials
IPC: C22B26/22
Filed: 1934-02-06
Abstract: 418,789. Magnesium. OESTERREICHISCH AMERIKANISCHE MAGNESIT AKT.-GES., Radenthein, Carinthia, Austria. Feb. 6, 1934, Nos. 3920 and 3921. Convention dates, May 30, 1933 and Dec. 21, 1933. [Class 82 (i).] In a process of recovering pure magnesium from crude magnesium or material containing magnesium such as magnesia, dolomite &c. by vaporizing the magnesium and condensing the vapours, the liquid condensate is caused to drop into a hydrocarbon oil. Magnesium vapours from a distillation chamber 1 are condensed on the surface of a condenser 5 contained in a vessel 4, the lower portion of which is outside the heating chamber 2 and may be cooled if desired, and the liquid magnesium drops into oil in the lower portion of the vessel. The vessel may be evacuated by means of a pipe 6. Solid magnesium is discharged through a lock chamber 9 without breaking the vacuum. The oil may be refined for further use by circulating it by means of a pump 12 through a filter 13. The process may be applied to compact magnesium dust such for example as is produced by the process described in Specification 362,835. Magnesium compounds may be reduced with agents such as aluminium or silicon, the mixture being passed in a current of inert or reducing gas through a heated chamber and the disengaged magnesium vapour after passing through a dust separator being condensed and allowed to drop into oil.
Patent GB-323396-A (GB)
Title: Improvements in devices for protecting the screw threaded parts of metal tubes and pipes
IPC: B65D59/02
Filed: 1929-02-06
Abstract: 323,396. Stewarts & Lloyds, Ltd., and Atha, C. G. Feb. 6, 1929. Packing pipes and tubes.-A device for protecting the screwthreaded parts 2 of metal tubes and pipes 1 comprises a sleeve 3 having a layer 4 of felt, cotton wool, &c. fixed to its inner surface. The layer may be impregnated with size or similar stiffening substance, and the device is screwed on to the threads with the aid of a bar inserted through holes 6 so as to tap a screwthread in the felt &c. and to secure the sleeve in place. For protecting the threads of internally screwed pipes, a. sleeve is provided having a layer of felt &c. on the outer surface.
Patent GB-274745-A (GB)
Title: Improvements in six wheel car truck constructions
IPC: B61F3/10
Filed: 1927-02-14
Abstract: 274,745. Jensen, C. A., (Buckeye Steel Castings Co.). Feb. 14, 1927. Axle-trucks and bogies.-A six-wheel truck in which each side frame comprises two end members 1, 2 flexibly connected respectively with the ends of a central equalizing member 3, has wear means interposed in the flexible connections between each end and central member. The inner ends of the members 1 or 2 respectively extend over the central axle 36 and enter between upstanding lugs 5, Fig. 5, on the central member 3 to which the end is attached by a bolt 6. Two wear blocks 15, 19 or a single block may be interposed at the joint. In a modification, a vertical link connects the ends of members 1 and 3, the lower end of the link resting in a socket in the member 3, whilst the upper end is secured to the member 1 by a bolt which also secures the side flanges of a wear plate bearing upon a wear plate on the member 3. The members 1, 2 are each formed with an opening to receive the end and supporting springs 39 of a transverse bolster 35, the two transverse bolsters being connected at the centre by a longitudinal bolster 49, Fig. 2, and at the ends by bridge pieces 46. A bracket 44 extending from the end of each member 1, 2 and a bracket 40 from each spring seat 38 support the brake hangers.
Patent GB-1082782-A (GB)
Title: Method for extracting foetal organs and the like material
IPC: A61K35/48
Filed: 1966-01-29
Abstract: Pharmaceutically useful extracts of animal organs, particularly foetal organs and placentae are obtained by successive extraction with aqueous media having pH's in the ranges 6.5 to 7.5, 8 to 9 and 3 to 5 respectively and combining the extracts.  The extraction may be carried out on fresh, frozen or lyophilized tissue and the extract may be filtered and lyophilized.  Specific examples relate to the extraction of foetal bones; cow or sheep placentae and liver together with bovine foetal spleens; and "foetal organs".
Patent GB-100204-A (GB)
Title: Improvements in Working Internal Combustion Engines with Oxygen.
Inventor: ROYER HENRI
IPC: F02B47/02
Filed: 1916-03-20
Abstract: 100,204. Royer, H. March 22, 1915, [Convention date]. Drawings to Specification. Regulating.-In a method of working by continuous combustion in which oxygen is used as a comburant and exhaust gases are retained in the cylinder for the formation of the charge, the ignition temperature is maintained with a reduced compression pressure and the combustion temperature is lowered by injecting water or other liquid into the residual gases in the cylinder during the exhaust period. To maintain the ignition temperature, the water or other liquid may be heated before injection, the water being recovered from the exhaust gases. Oxygen and fuel are admitted at the commencement of the working stroke. The method of working is adapted for use on engines for submarines. To increase the power developed when working with air as a comburant, oxygen may be added late in the working stroke the fuel supply being augmented and the water injection correspondingly decreased. The Specification as open to inspection under Sect. 91 (3) (a) states that the fuel is injected by cooled combustion gases alone, or mixed with oxygen. This subject-matter does not appear in the Specification as accepted.
Patent GB-263340-A (GB)
Title: Process for the extraction of tartaric salts
IPC: C07C51/48
Filed: 1926-02-15
Abstract: 263,340. Klaversteijn, W. E. Feb. 15, 1926. Potassium bitartrate; calcium tartrate. - In a process for extracting tartaric salts from wine lees and like materials in the cold with recoverv of the solvent, the raw material is ground and 100 parts of water added for each 7 parts of potassium bitartrate in the material. The mixture is agitated and treated in a closed container with a current of sulphur dioxide until a pressure of 3 atmospheres is attained, stirring being continued until all the potassium bitartrate is dissolved forming potassium bisulphite and tartaric acid. The pressure is reduced without disturbing the chemical equilibrium reached, and after filtration the liquor is treated with vacuum in a closed container when the reverse reactions take place, the sulphur dioxide being drawn off and potassium bitartrate formed again and precipitating out of solution. This operation is stopped when a small amount, e.g. 2 per cent of the bitartrate remains in the solution so as not to precipitate the calcium tartrate present. The - sulphur dioxide evolved may be used to treat a fresh batch. When, after repeated use, the mother liquor contains a relatively large amount of calcium tartrate, it is treated with a quantity of calcium bisulphite corresponding to the potassium salts still in the solution, and all the tartaric acid precipitated as calcium tartrate. The potassium bisulphite remaining in the solution is subsequently separated by concentration and cooling. Previous methods employed for the extraction of tartaric salts are referred to.
Patent GB-1124777-A (GB)
Title: Mechanical seal construction
IPC: F04D29/12
Filed: 1966-04-20
Abstract: 1,124,777. Mechanical seals. BORGWARNER CORP. 20 April, 1966 [6 July, 1965], No. 4322/68. Divided out of 1,124,776. Heading F2B. The subject-matter of this Specification is identical with that described in Specification 1,124,776, but the claims differ.
Patent GB-562453-A (GB)
Title: Improvements in or relating to stereoscopic pictures and to films therefor
IPC: G03B35/24
Filed: 1943-03-17
Abstract: 562,453. Stereograms. KODAK, Ltd. March 17, 1943, No. 4367. Convention date, Feb. 2, 1942. [Classes 97 (i) and 98 (ii)] A parallax stereogram 31 is combined, for direct viewing from a particular distance, with a transparent sheet 30 having plane refracting surfaces 32 of such width and inclination that each eye sees the appropriate picture sections only, and by light passing through all the surfaces 32 ; the sheet 30 may form a support for the image layer 31 or may be separate therefrom and may support a sensitized surface for use in a camera producing such stereograms by means of two lenses. Mathematical conditions are deduced in the Specification whereby rays 16, 18 from a left-eye picture section 33 are refracted by a surface 21 to the left eye 11 by rays 13, 12, and rays 17, 19 therefrom are refracted by a surface 23 to the left eye by rays 12, 14. The stereogram may be viewed as a transparency or with a white backing.
Patent GB-1106946-A (GB)
Title: Method of producing homogeneous ion-exchange membranes
Inventor: PASHKOV ARKADY BORISOVICH
IPC: C08F255/00
Filed: 1967-01-30
Abstract: An ion-exchange membrane is produced by subjecting polyethylene radiation-grafted with acenaphthylene to e.g. (a) sulphochlorination followed by saponification or (b) chloromethylation followed by amination.
Patent GB-392678-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J9/04
Filed: 1932-02-15
Abstract: Porous refractory bodies of metals such as tungsten, molybdenum, tantalum and the like are exposed to alkaline-earth metals, particularly barium, in the molten state or as a vapour. The porous bodies are produced by pressing metal powders, and their porosity varied by a sintering treatment.  The alkaline-earth metal permeates the body and the mixture is then completed by a heat treatment.  Such bodies can be worked up mechanically if the barium content is not too great.ALSO:Alloys are produced by exposing porous refractory metal bodies to alkaline-earth metals, particularly barium, in the molten state or as a vapour.  The porous bodies are produced by pressing metal powders, and their porosity varied by a sintering treatment to produce alloys with different alkaline-earth metal contents.  The alkaline-earth metal is stated to permeate the porous body after which a heat treatment transforms the mixture into a homogeneous alloy.  Alloys of barium with nickel or platinum having a barium content up to 10 per cent may be thus produced.  If barium vapour is used the content is less than 5 per cent but such alloys are stated to be very pure.
Patent GB-251222-A (GB)
Title: Improvements in waterless gas-holders or gasometers having vertically sliding closing discs or pistons
IPC: F17B1/00
Filed: 1926-02-16
Abstract: 251,222. Kl÷nne, A. [Firm of],(Assignee of Schulz, G. C. 0.). July 18, 1925, [Convention date]. Holders.-In waterless gas-holders of the type comprising a casing fitted with a vertically movable closing disc or piston the casing is formed by welding sheet-iron plates b to a framed structure comprising vertical posts c and horizontal rings d by means of corner welds e and butt welds f. The vertical joints between the plates are arranged in front of the posts c and the horizontal joints in front of the rings d. The butt welds f are ground after formation so that the internal surface of the holder presents a smooth surface.