baber/WOPTO huggingface dataset:
Patent GB-732500-A (GB)
Title: Improvements in or relating to electrically driven tuning forks
IPC: H03H9/48
Filed: 1953-02-05
Abstract: 732,500. Tuning-forks. COLE, Ltd., E. K., and COX, V. J. Feb. 5, 1954 [Feb. 5, 1953], No. 3235/53. Class 88 (2). An electrically-driven tuning-fork 1 has two magnetic projections 2, 3 encircled by driving and pickoff coils 4, 5 respectively.
Patent GB-110475-A (GB)
Title: Improvements in Wire Heald Frames employed in Looms for Weaving.
IPC: D03C9/06
Filed: 1917-03-06
Abstract: 110,475. Jones, H., Jones Bros., and Textilities, Ltd. March 6, 1917. Healds.-In a wireheald frame, the ends of the heald-carrying rods are provided with one or two projecting parts adapted to abut against oppositely situated edges of one of the straps connecting the staves to secure the rods in position. In the form shown, the rod c is provided with enlargements c<1> and the loop of the strap b is held in position to grip the rod by a sliding clip b'. To remove a rod, the clips b' are .moved so that the loop can be expanded. In a modification, two rods having individual enlargements or enlargements common to both rods are passed through the loop of the same strap. In other modifications, the end of the rod is provided with a nick to receive the strap or with an annular projection adapted to engage slots in the strap.
Patent GB-451500-A (GB)
Title: Manufacture of quaternary ammonium compounds of imidazoles
IPC: C07D235/08
Filed: 1935-02-01
Abstract: Quaternary ammonium compounds of cyclic amidines are prepared by heating a cyclic amidine derived from an o- or peri-diamine of the benzene or naphthalene series, which is unsubstituted at the nitrogen and substituted at the m -carbon atom by an aliphatic or hydroaromatic residue comprising at least three carbon atoms, with an alkyl chloride under pressure in presence of methyl or ethyl alcohol. The resulting quaternary ammonium compounds have the same or different alkyl substituents attached to the two nitrogen atoms according to whether the alkyl chloride corresponds with the alcohol used or not.  In examples: (1) m -heptadecylbenzimidazole is heated in an autoclave with methyl chloride and methyl alcohol at 140--150 DEG  C.; the product has marked capillary activity and is of use for increasing the fastness to water of dyeings obtained with direct dyestuffs; (2) m -pentadecyl- and m -heptadecylbenzimidazole is heated in an autoclave at 160--170 DEG  C. with methyl alcohol and ethyl chloride; the product has strong foaming properties; (3) m -heptadecylbenzimidazole (or m -propylbenzimidazole) is heated in a pressure vessel with hexadecyl chloride and methyl alcohol; the product yields a foaming solution in water which softens textile fabrics; (4) m -heptadecenylbenzimidazole is heated in a pressure vessel with ethylenechlorhydrin and methyl alcohol at 170--175 DEG C.; the product has dispersive power for mineral oils. British Specifications 403,977 and 419,010, and Swiss Specifications 163,274, 165,036, and 165,037 are referred to.
Patent GB-1402187-A (GB)
Title: Packing medium for biologically treating waste water
IPC: C02F3/10
Filed: 1973-01-23
Abstract: 1402187 Percolating filter medium IMPERIAL CHEMICAL INDUSTRIES Ltd 12 April 1973 [24 April 1972 23 Jan 1973] 18823/72 and 3347/73 Heading C1C A packing material for biological treatment of liquid effluent and sewage in a percolating filter, comprises randomly packed extruded hollow open-ended cylindrical pieces of an inert organic polymeric material, the wall of each cylinder comprising, throughout its length, a plurality of corrugations running transversely or obliquely to the main axis of the cylinder and having a depth in excess of the thickness of the wall material. The corrugations, which may be sinewave or castellated in profile, may be either separate or comprised by a single continuous helical thread-like corrugation. The cylinder walls may have multiple perforations, and may terminate in planes lying transverse or oblique to the main axis of the cylinder. The liquid to be treated may be fed continuously or intermittently to the filter.
Patent GB-556009-A (GB)
Title: Improvements in or relating to vehicles of the track-laying type
IPC: B62D55/065
Filed: 1942-03-14
Abstract: 556,009. Endless track vehicles. STRAUSSLER, N. March 14, 1942, No. 3388. [Class 79 (i)] A vehicle has a plurality of tracks m, n, or o, p arranged side-by-side or each side of the vehicle, and is propelled by a plurality of engine units c, d, each driving a track on each side of the vehicle. In the construction shown the engine c drives the inner tracks n, o through changespeed gear e and a transverse shaft l, and the engine d drives the outer tracks through a changespeed gear f, shaft h passing over the shaft l, and a transverse shaft k. Thus, two separate engine units and transmission gear sets are employed, and they may be similar to sets ordinarily used alone to propel a light tank having a single track at each side. Eack track has two articulated roller bogies resiliently suspended and arranged in tandem. Steering clutches 10 - - 13 are provided on the transverse shafts k, l and are operated all together to engage and disengage the drive, but are operated in pairs 10, 12 or 11, 13 for steering purposes.
Patent GB-580562-A (GB)
Title: Improvements in or relating to apparatus for gauging annular bodies
IPC: G01B5/08
Filed: 1944-02-23
Abstract: 580,562. Linear - dimension gauges. MOLLART ENGINEERING CO., Ltd., MOLLART, K. A. W., and HARRIS, S. E. Feb. 23, 1944, No. 3400. [Class 106 (ii)] A calliper-type gauges for testing the internal diameter of plain or screw-threaded annular bodies or rings comprises a work table arranged beneath the measuring points or anvils, the surface of the table being inclined to the horizontal and at right angles to the vertical plane containing the measuring points. The points 26, 28 for gauging the internal diameter of a screw ring 29 are carried by slides 13, 14 mounted in guides 11, 12 secured to a vertical plate 1. The slide 13 is positioned by a nut 18 and locked by a nut on a screwed rod 21 extending from the slide, whilst the slide 14 is urged away from the slide 13 by a spring 32 controlled by a knob 31 on the slide-rod, the end of which engages the rod 36 of a dial gauge 34 mounted on the plate. The ring 29 is rolled down an inclined table 8 until its inner surface contacts the' point 26, and the slide carrying the other point 28 is then pushed against the action of spring 32 until the point 28 engages the inner surface of the ring, an adjusting-screw 9 serving to position the table 8 correctly. In a modification, Fig. 5, a pivoted lever 56 is provided for moving the slide 14 against its spring, and both fine and coarse adjusting- screws 53, 54 are provided for elevating the table 8, which is guided by extensions 41, 42 running in guides 43, 44. The slide 13 is adjusted by a knob 18 turning two diametrically-opposite pins which engage the screw-thread of the slide-rod 17. For annular articles having a plain cylindrical bore, the single point 26 may be replaced by two small spaced balls.
Patent GB-444564-A (GB)
Title: Improvements in or relating to high frequency inductance coils
IPC: H01F17/04
Filed: 1935-03-04
Abstract: 444,564. Transformers. POLYDOROFF, W. J., 609, West Lake Street, Chicago, U.S.A. March 4, 1935, No. 3446/34. [Class 38 (ii)] [See also Group XXXVI] A high - frequency inductance coil or transformer comprises a comminuted magnetic core wound with Litz wire having a strand diameter of substantially ten times the average grain size of material of the e magnetic core, the winding being divided into sections, spaced from one another along the magnetic axis, each section consisting of a multilayer coil whose radial depth is at least equal to its width. In the construction shown in Fig. 1, the coil is divided into three bank-wound multi-layer sections alpha separated by ribs b on an insulating former c. The cylindrical core d is pushed into the former c so that it is linked with all the coil sections alpha, and is adjustable by means of a screw-threaded rod e passing through a tapped hole in the former c. In a modification, Fig. 2, the sections a are of the self-supporting type of multi-layer winding, and are air spaced axially along a plain cylindrical former c. The magnetic core consists of a cylindrical rod d passing through the former c and engaged at its ends by a U-shaped yoke e. The rod d is adjustable relatively to the former c and yoke e for adjusting the inductance to the desired value. In the construction shown in Fig. 3, an outer core part f in the form of a hollow cylinder flanged at both ends surrounds the former c so as to produce a nearly closed magnetic circuit. The cylinder is split circumferentially into two parts at g to permit assembly. The core d may be adjustable by a screwed rod as shown, or the core itself may be screw-threaded to engage a corresponding screw-thread in the former c so that axial adjustment may be effected by rotating the core, as by a screwdriver inserted in a slot. The coil sections may alternatively be of the flat spiral or flat pancake type, but it is stated that the best results are obtained when the radial depth of each section is approxi.- mately equal to its width. As a result of the relation between the diameter of the strands of the Litz wire and the degree of subdivision of the magnetic material of the core, the core losses are approximately equal to the copper and dielectric losses. The core material may be that described in Specification 403,368, the average size of grain particles varying from 0À5 micron for a frequency of 1500 kilocycles per second to 30 microns for a frequency of 100 kilocycles per second.
Patent GB-560622-A (GB)
Title: Improvements in and relating to apparatus for sealing glass envelopes
IPC: H01J5/24
Filed: 1943-03-03
Abstract: 560,622. Welding glass ; electric lamps. BRITISH THOMSON - HOUSTON CO., Ltd. March 3, 1943, No. 3466. Convention date, March 13, 1942. Drawings to Specification. [Class 56] [Also in Group XI] Relates to a method of sealing together vitreous members to form an enclosure, particularly for sealing together the reflector and cover sections of an electric lamp of the kind described in Specification 515,091, [Group XI]. The cover and the reflector are assembled edge to edge and heated along the edges to fuse them together. According to the present invention, a vacuum is formed within the enclosure, as soon as the heated glass becomes plastic, in order to pull the two glass sections together tightly, and the sections are then displaced relatively to one another to stretch and work the glass at the joint. The sealing may be carried out on a machine of the kind described in Specification 538,542, [Group XI], provision being made for introducing into the enclosure a blast of inert or reducing gas to move the sections apart to stretch the glass at the joint.
Patent GB-492863-A (GB)
Title: Improvements relating to the feed devices of heilmann type combing machines
IPC: D01G19/14
Filed: 1938-02-04
Abstract: 492,863. Combing machines. SACHSISCHE TEXTILMASCHINENFABRIK VORM. R. HARTMANN AKT.-GES. Feb. 4, 1938, No. 3516. Convention date, March 8, 1937. [Class 120 (i)] In a Heilmann combing-machine in which the extent of the movement of the feed grid d relative to the lower nipper bar r is adjustable, the cam disc e, Fig. 1, is constructed so that the lever f after completing the feeding movement is capable of an additional movement which imparts to the feed grid an additional movement adjustable in extent for increasing the length of the tuft before or during the closing of the nipper c, r. The lever h is mounted on the nipper - shaft i and the length of the feed movement' is varied by the usual adjusting roller g. The additional movement is controlled by the adjustable stop n and by the recess s in the cam e, Fig. 1. Alternatively the stop n is mounted on the lower arm of the bell-crank lever f, Fig. 2, and engages a loosely mounted lever o which carries a roller p engaging a disc q mounted beside the cam e.
Patent GB-878136-A (GB)
Title: Aluminium alkoxy and aryloxy hydrides, their complex salts with alkali hydrides and the production of the same
Inventor: HAMPRECHT GUENTHER
IPC: C07F5/06
Filed: 1960-02-02
Abstract: The invention comprises aluminium alkoxy or aluminium aryloxy hydrides or their salts with an alkali metal hydride and having the formula Al(OR)nH3-n, Me(Al(OR)nH4-n) or Al2(OR)3H3 in which R is an alkyl group, a phenyl group or an alkyl-substituted phenyl group, Me is an alkali metal and n is equal to 1 or 2.  They may be produced by reacting the corresponding aluminium alkoxy or aryloxy halide with an alkali metal halide in an inert solvent.  Suitable solvents are, for example, ethers, hydrocarbons or tertiary amines.  The reaction may be carried out at temperatures in the range 0-130 DEG C. and at atmospheric or superatmospheric pressure.  Before the reaction starts there is preferably added to the reaction mixture a small amount of an aluminium alkyl, aluminium phenyl, aluminium alkoxy or aluminium phenyloxy hydride or a small amount of the product.
Patent GB-228941-A (GB)
Title: Method of and machine for grinding threaded members
IPC: B24B19/02
Filed: 1925-02-09
Abstract: 228,941. Hanson, B. M. W. Feb. 9, 1924, [Convention date]. Screw threads, grinding; wheels.-Relates to a machine for grinding threads on taps, gauges, screws &c. of the type having a tilting table b, whose movements take the work up to and away from the tool g, which is in the shape of a cylinder having a number of similar circumferential serrations of the shape of the thread and is drawn from outside the machine. The cam R, Fig. 4, feeds the work to the tool the cam S reciprocates the work a distance! less than the effective length of the wheel. Both these cams are detachably mounted on a shaft 96 driven by gearing, whose speed ratio can be changed when the machine is set up. The cam R acts on a roller 89 and through linkages 88, 87, 86, 85, 84, 83, Figs. 1 and 4, and either puts a pawl 82 into engagement with a tooth wheel 80 or lets it run idly over the wheel. If it is in engagement, the shaft 35 is turned and the worm and wheel 28, 27 at the other end of this shaft raise or lower the end of the support 33 of one end of a lever 25, Fig. 3, pivoted at 22, to an upstanding part 23 on the rearward projection 24 of the tiltable worktable. At the same time the shaft 76, Figs. 1 and 4 is rotated and operates an escapement mechanism to cause engagement or release between the constantly rotating wheel 66, Fig. 4 and the pawl 69 on the disc 68 so that the shaft 39 is rotated to operate the cam 38, Fig. 3, which acts on the lever 25 on the other side of its pivot to tilt the table. To get special shaped teeth, a cam 42, Figs. 3 and 4, may be used and is then driven from the shaft 43 when operation of the handle 58 throws in the clutch 61. The cam S gives appropria.te movement to the work slide 13 through the roller 101. The shaft 96, cams R, S, and change gear may be removed from the machine as a unit for setting the machine. Specification 184,510 is referred to.
Patent GB-339861-A (GB)
Title: Improvements in or relating to the cooling of rotating shafts
IPC: F16C37/00
Filed: 1930-02-03
Abstract: 339,861. L÷ffler, (nÚe Boehmer), J. E. Feb. 5, 1929, [Convention date]. Cooling.-The rotating shaft 1, e.g. of a centrifugal pump, is cooled between the highpressure space 2 and the stuffing-box 3 by liquid circulated by thermo-syphon action through hollow spaces in the shaft. The liquid passes from a chamber 6 through ports 9 to the hollow interior of the shaft, and through the annular space between the shaft and a sleeve 12 to a chamber 5, from which it passes by thermosyphon action through a cooler 8 to the chamber 6. The circulation may be assisted by a centrifugal wheel 13. The cooling medium may -be supplied from the high-pressure space 2 by a pipe 14 passing through the cooler 8. The stuffing-box may be cooled by a jacket 15. In a modification the sleeve 12 is dispensed with, and the cooling medium is circulated through a tube in the hollow interior of the shaft, and between the exterior of the tube and the interior of the shaft. Specification 319,348 is referred to.
Patent GB-1181923-A (GB)
Title: Semi-Conductor Device
IPC: H01L29/00
Filed: 1968-01-24
Abstract: 1,181,923. Semi-conductor devices. BROWN, BOVERI & CO. Ltd. 24 Jan., 1968 [26 Jan., 1967], No. 3684/68. Heading H1K. The surface of the body of a PNPN semiconductor device is bevelled so that in crosssection it has two outer portions at different angles 9 and 11 to the junctions, and between them a portion at an angle 10 intermediate in magnitude to these two. Angle 9 lies between 20 and 35 degrees, angle 10 between 3 and 5 degrees and angle 11 is substantially 2 degrees, the exact values depending upon the doping concentrations of the semi-conductor regions. A part 12 of the surface of region 2 adjacent the emitter 1 may be parallel to the surface 13 of the emitter. The angles are formed by grinding a flat circular PNPN body by three dome-shaped grinding shells of different radius in succession, grinding the largest angle first and the smallest last.
Patent GB-156425-A (GB)
Title: Improvements in methods and apparatus for selling or distributing tickets for theatres and the like
IPC: B42D15/00
Filed: 1920-02-06
Abstract: 156,425. Kyle, M. Feb. 6, 1920. Tickets, holding.-Theatre &c. tickets for reserved and numbered - seats are issued from a series of racks arranged to correspond with the plan of the house as shown in Fig. 1 so that at any time the state of the accommodation can be readily seen. The tickets 5 lettered and numbered as usual are disposed in slots in partitions 3 and cross-pieces 7 may be inserted to represent the gangways. Tickets for seats booked but not paid for are removed from their positions and placed in indexed pockets 6 to await the purchasers. The racks may be removed bodily so that tickets, sav for the stalls, may be transferred en bloc for sale in another box office. For bookings considerably in advance, an arrangement shown in Fig. 3 may be employed wherein the tickets 10 for the stalls are grouped in rows A - - F in columns according to the days of the week, provision also being made for storing tickets ordered but not paid for. The tickets are contained in sloping pockets so that by inspection of the ends of the tickets the condition of the bookings may be speedily checked.
Patent GB-563970-A (GB)
Title: A method for the production of shaped articles from magnesium and magnesium alloy scrap
IPC: C22C1/04
Filed: 1943-03-08
Abstract: 563,970. Obtaining coherent masses from powdered metal. STERN, M. March 8, 1943, No. 3751. [Class 82 (i)] [Also in Group XXII] Tubes, rods, strips, wire, and T, U, I, and other profile bars, &c. are manufactured from finely divided magnesium or magnesium alloy or from scrap such as borings, turnings, filings and other chips, by passing the metal through a compressing device, such as an extrusion press, at a temperature of from 250 to 800‹ C. at a pressure of at least 3 tons per square inch. The preferred temperature range is 300 to 350. The scrap may be cleaned by heating to from 150 to 180‹ C. and preliminarily compressed at from 1-3 tons per square inch, either in a separate die or press or in the press used for the final extrusion. Oil may be removed by a centrifuge and drying and iron by a magnet.
Patent GB-331892-A (GB)
Title: Improvements in and relating to the production of metals and alloys by exothermic reduction
IPC: C22B5/04
Filed: 1929-02-05
Abstract: 331,892. Hamilton, W. B., and Evans, T. A. Feb. 5, 1929. Grant of Patent refused. Induction furnaces.-The reduction of a mixture comprising a metal compound and a thermo reducing agent in a high-frequency furnace is started by incorporating an electrical conductor or primer in the mixture. An energetically reacting mixture may be used with a less energetic cne. The charge is retained in the furnace until the slag has separated from the metal. In the reduction of a mixture of chromate ore and ferrosilicon conductors of iron or iron-chromium are used in the form of filings, turnings, rods, sheets, grids, tubes, linings, plates or rings, or residual metal from a previous heat may be utilized. If the ferro-silicon is to function also as a conductor it must be in a satisfactory form, such as discs, and must be distributed throughout the charge. The charge-containing pots may be heated to a red heat in a muffle before being placed in the induction furnace. If nickel-chrome alloy is being prepared nickel-chrome conductors are used. Specification 198,323, [Class 82 (i), Metals, Extracting &c.], is referred to.
Patent GB-140879-A (GB)
Title: Improved means for retaining road wheels on live axle motor vehicles, and the like
IPC: B60B27/00
Filed: 1919-02-15
Abstract: 140,879. Thornycroft & Co., J. I., and Thornycroft, T. Feb. 15, 1919. Locking nuts.-In wheels of the kind which are connected to a live axle c by a. plate a and are retained on the axle sleeve c<1> with an interposed floating bush d by means of a thrust collar e and nut f, the collar e is movable axially but non- rotatable on the sleeve and forms one member of differential means for locking the nut. The means for holding the collar against rotation may comprise a key p secured to the sleeve and engaging a notch q in the collar. The differential nut-locking means consists, in the example described, of seven tapped holes g in the collar and six slots h in the periphery of a flange n on the nut, a screw pin m being screwed into any one of the holes g that coincides with a slot h in the position of adjustment to lock the nut and collar together.