baber/WOPTO huggingface dataset:
Patent GB-270591-A (GB)
Title: Improvements in or relating to rotary screw pumps
IPC: F04D3/02
Filed: 1926-12-13
Abstract: 270,591. Goepfert, F. Dec. 13, 1926. Worm pumps.-A hollow cylinder 4 mounted for rotation has an internal groove in which fits the edge of a helical web 13 carried on the hub 12. The cylinder consists of two parts 5, 6 held together by clamping bands 7 and the meeting edges form shoulders 11 which are engaged by the ends of the web 13. Hollow trunnions 8, 9 for the entrance and discharge of fluid are arranged at the cylinder ends and the discharge pipe 15 contains a valve consisting of two semi-circular plates 17 on a vertically disposed pin 16. Pins 18, 19 limit the movements of the valve plates. The cylinder and web rotate together and the valve prevents back-flow when the speed of the pump drops.
Patent GB-1207563-A (GB)
Title: Improvements in or relating to underground transportation systems
Inventor: MATSUKATA KOSUKE
IPC: B61B13/10
Filed: 1968-07-03
Abstract: 1,207,563. Underground transport systems. K. MATSUKATA. 3 July, 1968 [12 July 1967; 29 Sept., 1967; 5 Jan., 1968], No. 31760/68. Heading B7L. An underground transport system comprises a car 7 within a tunnel 1 and having rotatable about the tunnel axis on axles 8, frames 15 which connect together a set of legs 3, 4, 5 and 6, the legs 3 and 4 supporting driving wheels 10 and 11, the leg 5 a freewheel 12 and leg 6 a load carrying wheel 13, the wheel 10, 11 being driven by electric motors 16 energized from lines 18 via collectors 17. Air jets at 38 produced by motor-driven fans 40 strike surfaces 37 to stabilize the car during motion. The legs are formed of two telescoping defining between them an hydraulic chamber supplied with oil from a control 20A to extend said legs. Additional support wheels 13<SP>1</SP> may be provided which contain gyroscopic stabilizers 41. In a modification, Fig. 3, the axles 8 are replaced by a circular structure 8<SP>1</SP> fixed to the car and provided with a passenger door ABCD. The inner ends of the legs are provided with saddle bearings 21 which follow the circumference of the body 8<SP>1</SP>. The leg may be formed of two parts 3b, 3c, Fig. 10, which are held together by electromagnets 27, 29 during straight running but released when a curve is negotiated.
Patent GB-1462309-A (GB)
Title: Production of  a tanning formulation
IPC: C07C47/12
Filed: 1974-07-18
Abstract: 1462309 Formaldehyde-alcohol-aldehyde condensate BASF AG 18 July 1974 [21 July 1973] 31813/74 Heading C2C [Also in Division C6] A highly concentrated tanning solution is made by reacting a compound of the formula where R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are C 1-4  alkyl groups or R 2  and R 3  are hydrogen atoms, with a mono- or polyhydric alcohol of up to 5 carbon atoms, in the presence of an acid and reacting the product with formaldehyde in the presence of a base.
Patent GB-286804-A (GB)
Title: Improvements in or relating to locks
IPC: E05B35/10
Filed: 1926-12-15
Abstract: 286,804. Welsh, J. F. Dec. 15, 1926, L o c k mechanism, master-key.-A door lock with a main latch 2, adapted to be retracted by a grand-master, submaster, or visitor's key, and an auxiliary bolt 14, adapted to be shot or retracted on the inside by band but which can be retracted from the outside bv the grand-master key only, is provided with means which permanently prevent any key except the grand-master from being turned in the direction necessary to retract the auxiliary bolt 14. The means consists of a stop 20 on the cover plate 19, Fig. 4, of the lock casing and only the grand-master key is warded to pass this stop. The main latch 2 can be withdrawn by a handleoperated cam member 3 or by any of the keys which engage gate levers 8 and a runner plate 4. When the auxiliary bolt is shot, a projection 17 thereon is so situated as to be directly actuated by the grand-master key when turned in the direction necessary for the retraction of the bolt. Continued turning in the same direction moves the runner plate 4 forward to lock the main latch 2 in its advanced position.
Patent GB-742972-A (GB)
Title: Improvements in or relating to the production of citric acid
IPC: C12P7/48
Filed: 1953-11-19
Abstract: Citric acid is produced by the submerged vegetative fermentation of a carbohydrate-containing medium by means of Aspergillus niger, in which copper in ionic form is incorporated into the carbohydrate-containing medium.  Copper can advantageously be added as copper sulphate but may also be incorporated in the form of any salt soluble in the fermentation medium providing it does not have an undesirable anion.  The copper eliminates the adverse effect of nutrient iron on cellular morphology.  In the examples media containing (a) undeca tionized corn sugar, and (b) decationized corn sugar are subjected to submerged vegetative fermentation by means of Aspergillus niger in the presence of varying quantities of copper in ionic form. Specification 653,808 is referred to.
Patent GB-159691-A (GB)
Title: Improvements in driving mechanism for speedometers, distance registers and other measuring and registering apparatus for use on motor vehicles
IPC: B60Q1/54
Filed: 1920-06-14
Abstract: 159,691. Wray, G. June 14, 1920. Speed - indicator transmission mechanism.-Relates to improved means for supporting the transmission gear box of speedometers, distance registers, and other measuring and registering apparatus, for use on motor-vehicles, and consists in a double-ended clip, one end of which holds the gear-box, and the other, the frame of the vehicle, the whole being clamped by a central bolt. A clip A has one end a, shaped to engage the frame B of the vehicle, and the other end a<1> formed to receive the spherical portion c of a transmission gear box C. A central bolt E firmly holds the attachment in position on the frame.
Patent GB-210033-A (GB)
Title: Improvements relating to titanium compounds
IPC: C22B34/12
Filed: 1922-07-12
Abstract: A crystalloidal solution of titanyl sulphate is obtained by treating a titaniferous material such as ilmenite with sulphuric acid in the proportion of 1 part of TiO2 to 1.2 to 1.8 parts sulphuric acid.  The concentration should be such that the boiling-point is above 130 DEG C., and the mixture is heated above 120 DEG  C. but is kept below the rising boiling-point and is gradually increased to at least 140 DEG C. and may reach 250 DEG  C.  The reaction product is treated with a limited quantity of water to obtain the solution.
Patent GB-175719-A (GB)
Title: Improvements in otter boards for trawl nets
IPC: A01K73/045
Filed: 1920-11-15
Abstract: 175,719. Oertz, M. Nov. 15, 1920. Trawling-gear.-Otter-boards are slightly bent inwardly at the front edge in the direction of towing and may be tapered rearwardly. In one form, otter-boards a, formed as shown in Figs. 1 and 2, are provided with eyes e, f for the attachment of the net and angular rod members b, c for the attachment of towing-ropes d. In other forms, the otter-boards are formed of two or more flat pieces connected to one another at an obtuse angle, the outer edges being rounded off.
Patent GB-953049-A (GB)
Title: Improvements in or relating to means for providing a digital display of phase difference
Inventor: KERR DAVID
IPC: G01D5/38
Filed: 1960-05-04
Abstract: 953, 049. Selective signalling systems. ULTRA ELECTRONICS Ltd. May 4, 1960, No. 32282/61. Divided out of 953, 048. Heading G4H. A visual display of a quantity represented by the duration of pulses in a train is obtained by supplying the pulse train to an AND gate G1 together with vernier pulses having a frequency in vernier relation to that of the pulses in the train to generate bursts of Vernier pulses which are applied to a counter C1 providing the display. The pulse train (gate waveform) is also applied through gate G4 to a counter C2 which sets bistable circuit B/S to prevent further pulses reaching C1, C2 after 100 pulses have been received. During this interval a burst of Vernier pulses has advanced counter C1 to a state representing the duration of the pulses. After a time interval sufficient to allow the reading of C1, monostable circuit M/S reverts to normal after being triggered by B/S, thereby allowing the pulse train to advance C1 through G3, G2. When C1 reaches zero it resets B/S and the cycle repeats
Patent GB-861603-A (GB)
Title: Metallurgical process for treating steel
IPC: C21D8/00
Filed: 1957-10-16
Abstract: A method of treating steel comprises heat treating the steel to effect a phase change or a change in the physical structure of the steel and then effecting a reduction in cros-sectional area while the steel is at a temperature between 200 DEG F. and the lower critical temperature of the steel, the steel being non-austenitic and capable of strain hardening or precipitation hardening at the temperature of cold working.  The heat treatment may be austempering, hardening by quenching from above the austenizing temperature, martempering, normalizing, or annealing.  The reduction in area may be obtained by a drawing operation e.g. passing the steel through an extrusion die, carried out at a temperature between 450 DEG F. and 900 DEG F.
Patent GB-719444-A (GB)
Title: Improvements in or relating to rotary electric switches
IPC: H01H19/56
Filed: 1952-12-19
Abstract: 719,444. Snap-action switches. NAAMLOOZE VENNOOTSCHAP INDUSTRIELE ONDERNEMING W. H. BRASKAMP. Dec. 19, 1952 [Dec. 22, 1951], No. 32328/52. Class 38(5) A rotary switch comprises a movable contact carrier B urged by a spring 7 towards a fixed contact carrier O, a resilient strip contact 6 on the carrier B bridging diametrically-opposite contacts 5 on the carrier O. Three balls 13 in the carrier B co-operate with a ring of sockets 11 in the carrier O to cause quick switching movement of the carrier B. The carrier B has a recess 15 on its underside with a roof-shaped profile 16 engaged by a driving pin 14 on the operating shaft 3, whereby on rotation of the shaft the carrier B is first lifted away from the carrier O whereupon the carrier B moves ahead of the pin 14 into the next switching position. The shaft is prevented from moving lengthwise by a collar 17 thereon energizing the carrier O. A scale 9 on the shaft 3 observable through a window 10 indicates the switch position.
Patent GB-634365-A (GB)
Title: Improvements in sliding doors, windows and other sliding covers or shutters
IPC: E06B3/46
Filed: 1945-11-30
Abstract: 634,365. Sliding doors, windows &c. BARR & STROUD, Ltd., FRENCH, Sir J. W., and FOSTER, C. Nov. 30, 1945, No. 32332. [Class 20 (iii)] [Also in Group XXXIII] Sliding doors, windows, or other shutters c, particularly for use on board ship, which slide along a rail or frame D are caused to be pressed to and released from the opening by a limited movement of the rail &c. itself on hinges E spaced a considerable distance from the opening. A clamp H rotatably carried on the wall has a cam groove engaged by a projection N on the frame to provide this movement ; the projection may be adjustable in a slot to permit of disengagement from the clamp to enable the frame to be swung away from the wall for inspection of the facing material. Modifications include the substitution of flat spring end pieces for the pivotal mounting of the frame and a counterbalanced door sliding vertically along a frame hinged about a horizontal axis at its lower end.
Patent GB-506276-A (GB)
Title: Guides for reciprocating platens as used, for example, in hydraulic presses for the hot molding of plastic material
IPC: B30B15/04
Filed: 1937-11-24
Abstract: 506,276. Hydraulic presses. CANNON, E. Nov. 24, 1937, No. 32376. [Class 69 (ii)] [Also in Group V] The platen 10, such as that of an hydraulic moulding press, is prevented from tilting by bushings 18 fitting closely on the guide rods 17, loosely in holes in the platen, and provided with flanges 19, 20 engaging parallel surfaces of the platen. The flanges 20 may be formed by nuts. The spaces 21 between the bushings 18 and the walls of the holes in the platen permit of expansion of the platen by heat. The platen is guided centrally by its being mounted on the ram 11 of the hydraulic cylinder 14. Rotation of the platen is prevented by guide bars 23 engaging in slots 25 at opposite edges of the platen.
Patent GB-443308-A (GB)
Title: Improvements in the manufacture and production of gas mixtures containing nitrogen or nitrogen and hydrogen
IPC: C01B3/02
Filed: 1934-11-10
Abstract: Nitrogen or nitrogen and hydrogen mixtures are obtained by the partial combustion of ammonia with preheated air or oxygen in a greatly widened flame, for example, a flame produced by directing streams of ammonia and air &c., in opposite directions on to a deflecting plate, preferably conical.  The air &c. is preferably preheated by the heat of combustion.  A suitable form of apparatus is described in Specification 440,054.
Patent GB-818794-A (GB)
Title: Improvements in or relating to lathe tool holders
IPC: B23B29/04
Filed: 1955-11-14
Abstract: 818,794. Tool-holders; lathe details. OWEN, F. Nov. 13, 1956 [Nov. 14, 1955], No. 32444/55. Class 83 (3). A lathe tool-holder comprises a spring 21 enabling the tip of an internal screw-cutting or boring-tool 11 to move resiliently away from the surface of the work when the torque on the shank of the tool is excessive, the spring 21 being a torsion-spring surrounding a sleeve 1 freely mounted in bearings 2, 3. One end of the spring is anchored to the sleeve and the other end to the bearing 3. The tool 11 is held in the sleeve by a draw-bar and nuts 8. The bearings are carried on a slide 14 adjustable, in a vertical plane, angularly about the tip of the tool. A block 15 carrying the slide 14 is mounted in a T-slot 19 of the lathe cross-slide 20. A collar 22 on the sleeve 1 abuts the slide 14 to determine the depth-ofcut. The force exerted by the spring may be adjustable.
Patent GB-1117653-A (GB)
Title: Ceramic-to-metal seals
IPC: F16J15/02
Filed: 1965-07-29
Abstract: 1,117,653. Ceramic-metal seals; brazing. RADIO CORP. OF AMERICA. 29 July, 1965 [27 Aug., 1964], No. 32453/65. Headings B3R and B3V. A sealed structure comprises a multi-layer sheet-metal member 10, Fig. 1, having an edge 12 brazed to a flat surface of a ceramic member 16, the composite member 10 having a thermal expansion response in a direction normal to its thickness substantially matching the thermal expansion response of the ceramic member. The composite sheet may comprise a core 20 of Mo, Mo alloy or W, and outer layers 22, 24 of ferrous-Ni or Co alloys, stainless, or tool, steel between which and the core are layers 26, Fig. 3, of Ni diffused into the contiguous layers under heat (600-1000‹ C.) and pressure (5000- 25,000 p.s.i.) during formation of the composite sheet. Before brazing the seal with a Co brazing material 18, the joint-surface of the alumina ceramic 16 is metallized by using Mo salt and then plated with Ni. The thermal expansion response of the composite sheet is fixed by predetermining the thickness of outer layers 22, 24 of higher or lower thermal expansion response than that of the core 20 so that they assist or oppose expansion of the core. In an example, a composite sheet with a Mo core having a thermal expansion response of 4 mils p.i. at 800‹ C. and outer layers 22, 24 of Ni alloy having a thermal expansion response of 12À5 mils p.i., was given a nett response of about 6 mils p.i., the response of alumina, by making the core about three times as thick or the combined thickness of the layer 22, 24. The seal may be formed between a composite metal tube and a ceramic tube, or between a ceramic ring and a composite metal cup, Figs. 4 and 6 (not shown).
Patent GB-646071-A (GB)
Title: Improvements in and relating to a clasp for closing shoes and boots
IPC: A43C11/14
Filed: 1947-12-09
Abstract: 646,071. Strip fastenings for shoes. FREUDENREICH, J. DE. Dec. 9, 1947, No. 32479. Convention date, Dec 18, 1946. [Class 44] [Also in Group VII] One or more fastenings each comprising a series of curved links 1, 2 pivoted together end to end and attached at their extremities to the opposite sides of a shoe or boot opening are provided to hold the opening closed in their folded position as shown, and open on their expanded position. The links 1, 2 are preferably flanged at their sides and the extremities are attached, by means such as screws or dropnose pins passed through eyelet holes in the opposite sides of the shoe opening, to plates 3, and which extend some distance along the sides of the shoe. Several holes 4 are made in these plates for purposes of adjustment.
Patent GB-429101-A (GB)
Title: Improvements in or relating to the drying of vegetable material
IPC: F26B17/14
Filed: 1933-11-21
Abstract: 429,101. Haymaking; preserving crops. AKTIEBOLAGET SVENSKA FLAKTFABRIKEN, 8, Kungsgatan, Stockholm, and EDHOLM, H., Solsidan, Saltsj÷baden, both in Sweden. Nov. 21, 1933, No. 32517. [Classes 5 (i) and 6 (iii)] [See also Group XIII] Vegetable material showing marked coherency between the individual parts, such as grass, is introduced from the top into a column through which drying air is passed, preferably in countercurrent, and stationary guide members are arranged in the column to permit sliding of the material, and to form it into a plurality of separate strings with which they form a plurality of free air cells. In the form shown the plant comprises three sections each having a chamber 13, into which the material is fed through slots 14 from a storage chamber 16. The material passes over transverse beams 18, 19, 20, 21 arranged in 4 series to form zig-zag paths of nearly uniform cross-section. Each beam is provided with downwardly sloping flanges to which are attached pegs 25. Guide ledges 80 are provided to secure uniform distribution of the material, and rollers 29, which may be intermittently rotated, control the delivery of the treated material. The drying air may be heated by the gases from a furnace 36, and is passed by fans 32 in countercurrent to the material. The furnace gases may be cleansed from soot and sparks by passage through a separator, and then added to the air. The air flow may be obtained by the use of suction fans. At the beginning of the drying the drying effect on the fresh material may be increased by raising the temperature or increasing the volume of the air, or by supplying air only to the upper spaces 39 and 40. The air velocity should be between 5 and 100 metres per minute. The material may be treated with unheated air during the day and air heated to 35‹ or 45‹ at night. Moist atmospheric air may be used to preserve the material by preventing rise of temperature, in intervals before the completion of the drying. The drying apparatus may be arranged in a compartment on top of a large store room, the air flow being generated by suction fans.
Patent GB-300180-A (GB)
Title: Improvements in or relating to fastenings
IPC: B60R13/04
Filed: 1928-11-07
Abstract: 300,180. Budd Manufacturing Co., E. G., (Assignees of Ledwinka. J.). Nov. 7, 1927, [Convention date]. Bodies.-A securing means such as a screw is provided with a cupped member at its bead to receive a concealing button. The Figure shows an upholstered moulding or pad 9 secured on the inner side of an automobile door post 6 by means of a drive screw 7 which passes through a cupped member 1, inserted in a hole in the pad 9 and retaining the same by a flange 2, having a beaded edge 3 into which a button 11 is snapped to conceal the screw 7. The button is covered with upholstery material 13 similar to that of the pad 9. The pad 9 serves to retain weather packing 10 on the door post 6.
Patent GB-1043079-A (GB)
Title: Improvements in the production of n-substituted isocyanurates
IPC: C08G63/685
Filed: 1965-07-29
Abstract: Alkyl esters of di- and tri-(2-carboxyethyl) isocyanurate, in which the alkyl group contains 1-4 carbon atoms, are prepared by heating a solution of cyanuric acid and an alkyl ester of acrylic acid in the presence of a strongly alkaline catalyst.  The catalyst may be a quaternary organic ammonium base.  The reaction is preferably carried out in the presence of an antioxidant polymerization inhibitor, e.g. hydroquinone. The solvent for the reactant may be dimethylformamide or 1-methyl-2-pyrrolidone.
Patent GB-162717-A (GB)
Title: Improvements in dynamo electric power plant
IPC: H02K53/00
Filed: 1919-12-29
Abstract: 162,717. Harris, M. Dec. 29, 1919. Self-driving plant.-Relates to self-driving electric plant, whether stationary or on wheels. To start the plant, an outside source of power is employed to drive a dynamo and the power then shut off. The dynamo drives a motor which does work up to three-quarters of its capacity, the remaining quarter being employed through various arrangements to drive the dynamo. The motor may be connected to a pump operating in conjunction with an air vessel or boiler which feeds a turbine to drive the dynamo, or it may drive a second dynamo connected with a motor mounted on the shaft of the first dynamo. Or the pump may be employed to obtain a head of water to operate a mill or turbine, or in another arrangement electric accumulators are charged, the current from which is used to drive a motor on the shaft of the first dynamo. It is stated that the current from the first dynamo may 'be utilized for a table or hand lamp or for a miner's safety lamp which is arranged in a safety vessel and provided with a spring cap whereby the lamp is locked or unlocked.
Patent GB-604783-A (GB)
Title: Improvements in shear-blade slide drives for sheet shearing machines
IPC: B23D15/12
Filed: 1945-12-03
Abstract: 604,783. Shearing. HANGGI, M. Dec. 3, 1945, No. 32626. Convention date, Dec. 4, 1944. [Class 83 (iv)] The blade slide of a guillotine machine carries an electromotor rotating end cranks which engage blocks slidable in horizontal ways in stationary side frames to reciprocate the slide vertically and allow an idling movement in the horizontal direction. The slide a carries an electromotor rotating through hand-operated clutch and brake mechanism crank-pins q on shafts p. The crank-pins q engage blocks r slidable in side frames b. Rotation of the cranks causes a vertical reciprocation of the blade slide, the horizontal component of the crank-pin motion being absorbed by the sliding of the blocks r in the side frames. Cams u on the blocks r operate a resiliently mounted presser y.
Patent GB-362109-A (GB)
Title: Improvements in or relating to tapped electrical components
IPC: H01C10/46
Filed: 1930-10-30
Abstract: 362,109. Distribution boards. GRAMOPHONE CO., Ltd., Hayes, and CLARK, G. F., 39, Brandville Road, West Drayton, both in Middlesex. Oct. 30, 1930, No. 32676. [Class 38 (v).] A tapped electrical component such as a transformer winding 1 has each of its tapping points connected to a metal lug 2 carried by an insulating plate 3. A metal strip 5 is carried by an adjacent insulating plate 8. A hole 4 in each of the lugs 2 registers with corresponding holes in the insulating plates and with a screw threaded hole in the strip 5. A screw 6 is passed through one of the holes 4 and screwed into a hole in the strip 5 for the purpose of connecting any of the tapping points to the strip. The insulating sheets may form part of the transformer casing. In a modification the lugs only are provided with holes, and the shanks of the screw plugs press on the strip 5.