baber/WOPTO huggingface dataset:
Patent GB-502762-A (GB)
Title: Improvements in or relating to the manufacture of pressed yeast
IPC: C12N1/18
Filed: 1938-02-09
Abstract: 502,762. Yeast. INTERNATIONAL YEAST CO., Ltd., and MEYER, E. A. Feb. 9, 1938, No. 4033. [Class 14 (ii)] The ammonium salt of acetic or other aliphatic monocarboxylic acid is used as a nutrient in the growing of yeast. The salt may be added as such or in the form of materials adapted to form it in situ e.g. acetic acid and organic nitrogen or ammonium hydroxide. The nutrient may be added all at once, or in steps and other nutrients such as ammonium sulphate, phosphates and lactates may be present.
Patent GB-765007-A (GB)
Title: Improved wheel for the propulsion of a tow of artificial threads
IPC: D01D10/04
Filed: 1955-02-10
Abstract: A pulley 10 for the propulsion of a tow of artificial threads during the manufacture or treatment thereof has a peripheral groove 12 below the tow and a number of radial passages 13 opening into this groove. <PICT:0765007/IV(b)/1> <PICT:0765007/IV(b)/2> These passages also open into a chamber 14 which is subjected to a reduced pressure through a conduit 22.  A fixed sealing shoe 24 is provided to seal off the arc of the groove 12 not covered by the tow.  The suction in the groove 12 provides a positive drive between the tow and the pulley and at the same time serves as a means for extracting surplus treating liquids from the tow.
Patent GB-818173-A (GB)
Title: Improvements in or relating to means for tuning oscillatory circuits
IPC: H03J1/14
Filed: 1956-02-09
Abstract: 818,173. Tuning radio receivers. TELEFUNKEN G.m.b.H. Feb. 9, 1956 [Feb. 11, 1955], No. 4079/56. Class 40 (5). A tuning arrangement, more particularly for a television receiver, comprises a rotatable coarse tuning member and a retaining member for retaining the coarse tuning member in a plurality of discreet positions, the retaining means being rotatable under the control of an eccentric about the axis of the coarse tuning member so as to move the retaining member and effect fine tuning. In the Figure, the tuning cores 2 are adjustable by rotating a shaft 4 which carries an indented disc 5 engaged by a pawl 8 so that the tuning is arrested at a number of discreet positions corresponding, for example, to various television channels. The pawl is carried on a frame 13 which, by adjusting an eccentric 18, can be caused to rotate about the shaft 4 and so provide fine tuning at each tuning position. Backlash can be prevented by making the arms of the cam follower 15 resilient. The invention can also be used for adjusting a condenser.
Patent GB-1458031-A (GB)
IPC: H01B12/10
Filed: 1973-01-26
Abstract: 1458031 Superconductors IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 3 Jan 1974 [26 Jan 1973] 4133/73 Heading H1A In a method of making a superconductor comprising an intermetallic compound which involves the step of diffusing at least one of the superconductor elements to another superconductor element through a non-superconductive material, a selective diffusion barrier is provided between the other superconductor element and the non-superconductive material to prevent diffusion of the latter into the intermetallic compound. As shown, Fig. 1, a plurality of Nb rods 2 sheathed in Ta tubes 3 are embedded in a Cu matrix 1, e.g. by extrusion. The assembly is coated with molten Sn and then heated in Ar at 800 C. to diffuse the Su through the Cu to react with the Ta to form Ta 3 Su. Some Sn, but no Cu, migrates through to the Nb to form Nb 3 Sn. Alternatively to coating the matrix with Sn, a bronze matrix may be used. In a double-barrier variant (Fig. 5, not shown), utilizing a Ni-Cu matrix, a further sheath of Zr surrounds the Ta sheath to prevent the migration of Ni, both sheaths allowing the passage of Al, which is contained in the matrix, to reach the Nb and form therewith Nb 3 Al. In a tape example (Fig. 2, not shown) a Nb barrier (7) prevents Ag but allows Ge from a Ag-Ge layer (6) to reach a V layer (8) to form V 3 Ge. In a further embodiment (Fig. 3, not shown) a Zr barrier (11) stops Fe, Ni, and Cr from a stainless steel tube (9) from reaching a V outer tube (10) while allowing the migration of Ga. In Fig. 4 (not shown) an inner core (12) of Mg and Al is separated from an outer layer of Nb (13) by a barrier layer (14) of Hf, so allowing the formation of Nb 3 Al uncontaminated by Mg. Additional non-superconductor material may be employed for reinforcement.
Patent GB-593370-A (GB)
Title: Improvements in or relating to thermostatic electric switches
IPC: H01H61/013
Filed: 1945-02-20
Abstract: 593,370. Thermal switches. THERMEGA, Ltd., and SINGLETON, S. A. Feb. 20, 1945, No. 4250. [Class 38(v)] A bimetallic switch, which may be of the form described in Specification 587,111, has two heating coils 26, 27 joined in common at one end to a rivet 28, and both evenly distributed along the same length of the bimetal strip 1, and connected to separate leads 31, 32, at the other end, so that whichever coil is in circuit, the heat is applied to the same length of the strip. The windings may be of different resistance alloys or different gauges, so that each winding gives a different heating effect.
Patent GB-103557-A (GB)
Title: A Self Controlled Aerial Machine embracing a Torpedo and Sustaining Means therefor.
Inventor: BUCK FREDERICK WELLINGTON
IPC: F42B17/00
Filed: 1916-03-23
Abstract: 103,557. Buck, F. W. March 23, 1916. Ordnance design; war-rocket.-The Specification describes an aerial explosive machine which is launched from the apparatus shown in Fig. 1, comprising a carriage 37 which can be trained, and a cylinder 36 which can be elevated by a worm gear 40. The aerial machine is placed with a groove 43 over a yoke 42 at the end of a piston 41, which is thrust forward by the explosion of a gaseous mixture in the cylinder 36, the propelling- engine of the aerial machine being started just before this.
Patent GB-169423-A (GB)
Title: Improvements in or relating to reservoir pens
IPC: B43K5/06
Filed: 1921-02-07
Abstract: 169,423. Rusterholz, H. Sept. 20, 1920 [Convention date]. No Patent granted (Scaling fee not paid). Reservoir pens.-In a reservoir ruling or like per., the blades are adjusted by means of a rotatable coned sleeve x on the holder frictionally engaging corresponding surfaces on the rear ends of the blades t, to cause a nut w, which carries the blades, to travel on a threaded extension of the holder so that the blades are drawn into or moved out of the sleeve. The nut w is mounted on a threaded portion of a tube s by which ink is fed from the reservoir a to the pen. The ruling-pen may be replaced by a nib-carrier which is adapted' to screw on to the tube s. The reservoir is provided with a piston p, packed against the wall of the reservoir and its rod f, which is formed with a thread of the shape shown. The rear end of the piston is formed with a cup-shaped extension o having teeth n engaging the thread of the rod f. At the rear end, the rod f passes through a plug c, and is provided with a head h, held in position by a cap d, and between which and the plug c is inserted a spring l. To fill the pen, the piston is reciprocated, either by turning the head h, or by removing the cap d and drawing the piston and rod out. When pulled back to the fullest extent, the cup o engages the conical forward portion of the plug c to cause the teeth n to be released from the rod f, so that the rod may then be pushed back into the reservoir. To feed ink to the pen, the head h is pushed in against the action of the spring l to disengage the cup from the plug c, and to allow the teeth n to grip the rod f. Further movement of the rod f by means of the head h causes the piston to be fed forward to expel ink from the reservoir, but in its rearward movement, the-rod f slides through the piston. The piston rod may be in the form of a toothed rack or of an ordinary screw, in which case the spring l, extension o, and conical end of the plug c may be dispensed with. The Specification as open to inspection under Sect. 91 (3) (a) describes a sleeve formed with a hollow extension to which is secured an operating- head, rotatably mounted in the rear end of the barrel. The piston rod screws into the forward end of this sleeve, and, when the reservoir is full, extends slightly beyond the bore of the extension to serve as an indicator. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1038881-A (GB)
Title: Improved method of preparing a concrete structure
IPC: E04B5/38
Filed: 1963-02-04
Abstract: 1,038,881. Moulding concrete. MIL-WIS ENGINEERING Inc. Feb. 4, 1963 [Feb. 5, 1962], No. 4466/63. Heading B5A. [Also in Division E1] Prefabricated reinforced concrete shells for use in building frameworks, wherein they are employed as column or beam moulds, are formed with generally concave bonding surfaces, against which the in situ concrete is cast, by coating the appropriate shell shuttering with a retarder. The shells may be rectangular (as shown), circular, oval, ovoid or channel-sectioned, the shuttering may be of wood, plywood, sheet metal or sheet metal coated wood, and the retarder may be molasses, starch, cellulose products &c. The bonding surface, e.g. 27R, is washed and/or brushed down after the appropriate shuttering &c. boards 9, 11, 13 and 15 have been removed.
Patent GB-429124-A (GB)
Title: Improvements in or relating to the manufacture of brushes
IPC: A46B3/00
Filed: 1934-02-10
Abstract: 429,124. Brushes. ADDIS, R., Brush Works, Hertford. Feb. 10, 1934, No. 4507. [Class 19] A method of fixing bristles in celluloid brush stocks consists in inserting the bristles in the ordinary way and then applying to the bristles a cellulose solvent containing cellulose or other waterproof filler such as resin or shellac whereby the bristles are firmly fixed in the stock and the bristles are waterproofed. The tips of the bristles after ordinary fixing may be dipped in the cellulose solvent and capillary attraction takes the solvent to the base of the bristles.
Patent GB-231983-A (GB)
Title: Improvements in and relating to the driving mechanism of washing & mixing machines
IPC: A47L15/33
Filed: 1924-02-22
Abstract: 231,983. Quincey, O. H. S. Feb. 22,1924. Plates and dishes, washing. - A housing or bearing is provided for the pinion 5 and rack 6 which form part of the mechanism for rotarily oscillating the vertical shaft 3 of the dolly or other agitating element. The rack is slidably mounted in a sleeve 15 forming part of a swivelling trunnion 16 coaxial with the shaft 3 and carried by a depending bracket 16A. Packing members 19, 22 are provided around the aperture in the base of the machine through which the shaft 3 projects, and around the shaft respectively. The rack is connected to the crank pin 7A of a flywheel 7 driven manually or by power so that the rack oscillates angularly whilst being reciprocated horizontally, thereby producing enhanced acceleration and deceleration in the motion of the shaft 3.
Patent GB-660157-A (GB)
Title: Improvements relating to variable speed power transmission mechanisms
IPC: F16H63/14
Filed: 1949-02-21
Abstract: 660,157. Variable-speed gearing. BURMAN & SONS, Ltd., and BRIGGS, W. H. Feb. 15, 1950 [Feb. 21, 1949], No. 4640/49. Classes 80 (ii) and 80 (iii) Control means for a motor-cycle change-speed gear comprises a gear-change cam a which is rotated in steps by means of a double-armed pawl m coacting with projections g at one end of the cam, the pawl being mounted loosely on a spindle h to which a foot lever i is secured. The pawl, which is pressed axially by a spring p, has projections n, o engaging slots in a collar j formed on the spindle h so as to rotate therewith, while leaving the pawl free to rock sideways in riding over the projections g when returning to central position under the action of a U-spring t. The cam a is held against accidental movement by a spring-pressed detent d.
Patent GB-1131301-A (GB)
Title: Polyurethanes
Inventor: ALLPORT DENNIS CHARLTON
IPC: C07D211/14
Filed: 1965-02-03
Abstract: 1,131,301. Methylation of pyridyl-piperidines. IMPERIAL CHEMICAL INDUSTRIES Ltd. 19 Jan., 1966 [3 Feb., 1965; 2 April, 1965; 11 Aug., 1965], Nos. 4682/65, 14104/65 and 34367/68. Heading C2C. [Also in Division C3] The preparation of 1-methyl-4-(4<SP>1</SP>-pyridyl)- piperidine (I) and 1- methyl - 2 - (21 - pyridyl) - piperidine (II) is described. The former is prepared by reacting 4- (4<SP>1</SP> - pyridyl) - piperidine at < 20 C. with a mixture of formic acid and formaldehyde. Reaction is completed by heating to 100 C. over 2 hours and maintaining this temperature for a further 8 hours. After cooling, neutralizing to pH 11, extracting with ether, drying and distilling, I is isolated as a colourless liquid b.p. 91-95C/0À7 mm. Hg. which crystallizes slowly or standing. II is prepared in a similar manner from 2-(2<SP>1</SP>-pyridyl)-piperi. dine and is a colouiless liquid b.p. 81-83 C./ 0À1 mm. Hg.
Patent GB-1163974-A (GB)
Title: Photoconductive Film
IPC: H01J29/45
Filed: 1967-01-31
Abstract: 1,163,974. Photoconductive films. HITACHI Ltd. 31 Jan., 1967 [28 Feb., 1966], No. 4701/67. Heading H1K. A photo-conductive film for use as a vidicon target comprises, in sequence, a substrate 1, a transparent metal oxide conductive layer 2, an evaporated metal film 3, and a photoconductive layer 4. The purpose of the metal film 3 is to reduce the dark current of the structure, to which end it may form a blocking contact with the layer 2. If the photoconductive layer 4 is of an evaporated material selected from the group As 2 Se 3 , As 2 Se 2 S, As 2 SeS 2 , As 2 S 3  or Se, the metal film 3 may be of Ag, Al or Cu. The transparent layer 2 is preferably of SnO 2 , on a glass substrate 1.
Patent GB-136580-A (GB)
Title: Improvements in the Manufacture of Artificial Stones.
Inventor: SEFTON-JONES HERBERT
IPC: C04B33/13
Filed: 1918-03-18
Abstract: 136,580. Jones, H. Sefton-, (White Heat Products Co.). March 18, 1918. Stone, artificial, is prepared by mixing with glass a crystalline mineral body which has been subjected to a temperature exceeding 1500‹ F., and forming, pressing, and heating the mixture to fusion of the glass binder. The mineral body may be a natural substance such as silica, corundum, or a mixture of bauxite and rutile, or an artificial substance such as carborundum or alundum, and temporary binders such as silicate of soda, molasses, and stale beer may be used.
Patent GB-525080-A (GB)
Title: Improvements in and relating to toy motor vehicles
IPC: A63H17/32
Filed: 1939-02-14
Abstract: 525,080. Sound producing toy motor vehicles. MULLER, H. Feb. 14, 1939, No .4794. [Class 132 (iii)] A toy motor vehicle is provided with a soundemitting device driven by a separate clockwork mechanism 10 having a stopping arrangement, the device comprising centrifugal weights 15, 16 mounted on a rotatable cross-member 12 and arranged to strike against a gong 17. In. Fig. 1, operation of a button 31 on a steering wheel 20 of a toy vehicle slides a steering column 23 in its bearings 22, 25 to remove a disc 33 from the path of the cross-member 12 to allow the latter to rotate and weights 15, 16 to strike the gong 17. The column 23 is splined so that rotation of the wheel 20 actuates a rack 28 connecting the stub axles to turn the front wheels 30. In a modification shown in Fig. 2, the steering column is axially fixed and the cross-member 12 is conrolled by a spring-influenced level 43 operated by a disc 42 connected directly to the push-button 31 by lugs 36, 37. In a further modification (Fig. 9, not shown), the soundemitting device is controlled by a lateral movement of the steering column. The clockwork 10 mav be enclosed wholly or partly in the gong 17.
Patent GB-409865-A (GB)
Title: Improvements relating to pertused or indented metal sheets and their manufacture and use
IPC: B21D28/10
Filed: 1933-02-16
Abstract: 409,865. Perforated and indented sheets ; thermionic valves. TRIGGS, W., W. 57, Lincoln's Inn Fields, London.- (Baker & Co., Inc. ; 54, Austin Street, Newark, New Jersey, U.S.A.) Feb. 16, 1933, No. 4853. [Classes 83 (ii) and 83 (iv).] A thin sheet S is perforated, Fig, 7, or indented, Fig. 9, to form grids, anode plates and screens for electronic tubes and for screens for chemical processes. The sheet is of the thickness of foil and is formed with several hundred stabbed holes per square inch spaced so that the area through the holes is greater than the intact area. The perforations h may be formed by passing the sheet between rollers, between a roller and a platen, or between two platens. In the first method a hard steel roller A is formed with minute transverse and longitudinal ridges 2 forming pyramidal projections. It is rotated against a brass roller B to form therein depressions 13 which co-operate with the projections 3 of the roller A when the two rollers are incorporated in a hand-driven mill for operating upon the sheet. The sheet S is perforated, Fig. 3, by the teeth and the lugs 14 are bent as shown. By adjusting the rollers the indented sheet, Fig, 9, is produced.
Patent GB-1420599-A (GB)
Title: Apparatus for chemical analysis including a burner
IPC: G01N21/72
Filed: 1972-02-02
Abstract: 1420599 Burners for chemical analysis PYE Ltd 26 Jan 1973 [2 Feb 1972] 4899/72 Heading F4T Chemical analysis apparatus, such as an atomic absorption spectrophotometer, has a burner comprising a burner plate 1 having a flame port 5 therethrough in the form of a slot which has a transverse sectional profile which tapers inwardly from the lower inlet surface of the plate and has edges at said lower edge which are arcuate about axes parallel to the slot length to minimize turbulence and sample deposition in the region of flame port 5. The arcuate edges have a radius of curvature r, Fig. 4, of 3 mm. or greater and the dimensions indicated in Fig. 4 fulfill the relationships x # 1À5 s and 5e # 4h. The plate may be made by casting or machining from a single piece, or by spacers 4, 4<SP>1</SP> separating parts 2, 2<SP>1</SP> joined by screws 3, 3<SP>1</SP>. The lower edges of the ends 8, 81 of spacers 4, 4<SP>1</SP> may be profiled so that the inlet of slot 5 also tapers inwardly as seen in longitudinal section.
Patent GB-1485801-A (GB)
Title: Wideband antenna arrangements
IPC: H01Q5/49
Filed: 1974-02-02
Abstract: 1485801 Aerials MARCONI CO Ltd 25 Nov 1974 [2 Feb 1974] 04917/74 Heading H4A An aerial arrangement comprises a logperiodic array 52 of dipoles 64 of which the transmission line 58, at the end 60 of the array where are situated the longer dipoles, feeds the radiating elements of a curtain array 50. Said radiating elements may be dipoles or slots, and they are arranged in front of a reflecting screen 51. The two arrays cover different but overlapping frequency ranges, and their relative positioning is such that their signals in the common part of said ranges reinforce each other. At the other end 62 of the log-periodic array, the transmission line 58 is adapted to be connected to a radio transmitter. As described, the curtain array 50 comprises two "bow-tie" type dipoles 54, 56 which, together with the reflecting screen 51, may either be made of sheet metal or, alternatively, be "skeletonized'. Two or more of the aerial arrangements may be used in combination, in which case it is desirable that the virtual apexes of the log-periodic arrays should coincide. If the aerial arrangements are placed side by side, the dipoles in the log-periodic arrays may be slightly inclined to their respective transmission lines, so that said dipoles are parallel.
Patent GB-308579-A (GB)
IPC: C10L5/08
Filed: 1929-02-14
Abstract: 308,579. Chemisch-Technische Ges. March 23, 1928, [Convention date]. Addition to 300,195, [Class 50, Fuel, Manufacture of]. Continuous-discharge apparatus with stationary containers. - In the process according to the parent Specification the interchange of heat between the caking and non-caking materials raised to different temperatures takes place during and after, or mainly after, the mixing and preferably partly or mainly during or after the pressure treatment. The non-caking fuel heated to 600‹ C. is fed from a hopper 2 to a bent conduit 5, where it receives a falling stream of the caking fuel heated to 300‹ C. and supplied from a hopper 1. The two fuels flow into a mixer 10 and thence into a chamber 12, where the mixture is subjected to the operations of a ram 30 adapted to force it along a duct 31. Any collection of the material on the sides of the mixer and chamber 12 is prevented by rotating scrapers 14 and 24, the latter being carried by a disc 23 driven from the mixer shaft as shown.
Patent GB-542347-A (GB)
Title: A process and apparatus for introducing alloying material into molten metal
IPC: C21C7/00
Filed: 1941-04-16
Abstract: 542,347. Alloys. MEEHANITE METAL CORPORATION. April 16. 1941, No. 4968. Convention date, Dec. 31, 1940. [Class 82 (i)] Powdered or granulated alloying material, for example, ferro-silicon, calcium - silicon, nickel, or chromium, is added to molten meltal, for example, by forming a vortex of the molten metal and dropping the material on to the surface of the metal at the vortex. The mixed materials may be collected in a receptacle at such a distance below the vortex as to ensure considerable turbulence. In the apparatus shown metal passes from a cupola 10 down a spout 11 opening tangentially into a bowl 14 in which a vortex is formed. Powdered material from a hopper 26 is fed, under control of a slide valve operated by a handle 31, through an adujstable shoot 23 and spout 33 and is delivered to the metal at a point directly above or adjacent to the vortex.
Patent GB-743856-A (GB)
Title: Improvements in helicopters
IPC: B64C27/04
Filed: 1953-02-23
Abstract: 743,856. Helicopter wings. HUNTING PERCIVAL AIRCRAFT, Ltd., [formerly PERCIVAL AIRCRAFT, Ltd.], and FRISE, L. G. May 24, 1954 [Feb. 23, 1953], No. 4996/53. Class 4. A helicopter having a supporting and propelling rotor and fixed wings providing lift in forward flight is characterized in that at least an outboard portion 11b of each wing may be turned about a fore-and-aft axis into a substantially vertical position during hovering, whereby negative lift produced by downwash from the rotor on the wing may be reduced. As shown, each outboard portion is turnable about a fore-and-aft axis 12. The wing tips carry wheels 14 which may be mounted as in Specification 743,857.
Patent GB-411980-A (GB)
Title: Improved means for supporting ladders in erected positions
IPC: E06C1/20
Filed: 1933-02-20
Abstract: 411,980. Ladders. GRAY, B. P., 14, Suffolk Street, Birmingham. Feb. 20, 1933, No. 5116. [Class 20 (ii).] A ladder is supported by a removable back support which is provided with a U-shaped bracket 12 at its upper end, having its arms slotted to engage a rung of the ladder at points laterally apart to prevent twisting of the ladder on its axis. The bracket may be provided with a stem 13 to engage the hollow end of the strut 10 and with a slotted stay 15 adapted to engage a lower rung of the ladder. The stay may be a single bar, or a V-shaped bar slotted on its two limbs. To prevent lateral tilting of the ladder the sides may have pivoted lateral extensions 18 to rest on the ground or the feet of the ladder and the strut may be received into grooves. or sockets provided in spiked foot rests.