baber/WOPTO huggingface dataset:
Patent GB-517411-A (GB)
Title: Improvements in or relating to x-ray apparatus
Inventor: ALBERT BOUWERS
IPC: H05G1/00
Filed: 1939-02-22
Abstract: 517,411. Supply systems for X-ray tubes; r÷ntgen - ray apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS" GLOEILAMPENFABRIEKEN. Feb. 22, 1939, No. 5922. Convention date, Feb. 25, 1938. [Class 38 (iv)] [Also in Group XX] In an X-ray apparatus in which the source of high tension is constructionally united with the tube and the whole enclosed in a metal envelope. which can be fitted in a movable manner to a stand arm of adjustable height, the total weight is kept low by associating a Greinacher circuit with the transformer for the high tension supply. This reduces the weight of the stand arm in two ways, first the Greinacher circuit is itself lighter than its equivalent step up transformer and secondly as its output is D.C. the X-ray tube can be made smaller than for an equivalent A.C. supply. The filaments 11 and 18 of the rectifier 10 and the X-ray tube 1 are heated by the high frequency supply 21, external to the apparatus, while the filament 14 of the rectifier 13 is heated from 'transformer 23, which is small because of the high frequency of the'supply. The condenser units 2 and 3 and one end of the high tension winding 9 together with the core of the high tension transformer, are connected to 'the earthed envelope 16 which embraces the source of high tension. On the high tension side the unit 2 is connected to the anode 17 and the unit 3 to the incandescent cathode 18 of the X-ray tube 1, thus the tube 1 has the sum of the voltages of the units 2 and 3 applied to'it so that the voltage of the high tension winding 9 is doubled. The high frequency supply 21 may be a thermionic oscillator. The condensers 4-5 and 6-7 respectively are connected in series in relation to the high frequency heating current and' the voltage drop produced at them is negligably smaller because of the high frequency of the current passing through them. Fig. 2, shows the arrangement of the components of the apparatus. The metal envelopes 28 and 29 are jointed together to form..the metal cover 27 of the high tension system which is attached to the metal tube 50, holding the X-ray tube 51, by the knee joints 48 and 49 and the flanges 46 and 47. The envelope 27 is suspended so as to be rotated about its axis from a carrier 59 by means of rings 60 and 61 surrounding the envelope. The carrier may be secured to a stand arm 69 which is adjustable in height and if desired, pivoted. Specification 460,739 is referred to.
Patent GB-1394469-A (GB)
Title: Ash-tray particularly for vehicles
IPC: B60N3/08
Filed: 1973-02-07
Abstract: 1394469 Smokers' ash-trays GEBR HAPPICH GmbH 7 Feb 1973 [10 Feb 1972] 5978/73 Heading A2M The casing 2 of an ash-tray 1 is held in place in an aperture 3 of a panel 4, e.g. in a vehicle, by at least one lug 8 and at least one oppositely disposed latch 7 which each cooperate with a part of the front frame 5 of the casing, the latch 7 having been sprung inwardly during the insertion of the casing 2 into the aperture 3. The resilience of the latch 7 may be enhanced by the provision of a slot 13 which passes in front of the step 11 of the latch 7 and preferably extends along its two sides. Further latches 7 may be disposed on the side edges of the casing frame 5.
Patent GB-728125-A (GB)
Title: Progressive change speed gear utilising extensible pulleys
IPC: F16H9/12
Filed: 1951-03-14
Abstract: 728,125. Expanding-wheel gearing. ETABLISSEMENTS TERROT. March 14, 1951 [Feb. 7, 1951], No. 6094/51. Class 80 (2). A double expanding pulley 3, 4, belted to driving and driven pulleys 1, 7, has the inner pulley cheeks 10, 11 rigidly spaced by a sleeve 14. The axial spacing of the outer cheeks 12, 13 which have sleeves 15 connected by dogs 25 can be varied. The pulleys are mounted on a hub 19 between a collar 20 and a sleeve 21. The latter has an arm 22 with a slot 23 engaged by a fixed pin 24 and an doening 33 engaged by a finger 34 on the hub 19. Axial extensions 18 on the hub 19 support the pulleys in guides 17 in fixed frames 16 and are engaged by openings 30 in levers 28 pivoted at 29. To vary the gear ratio the extensions 18 are moved in the guides 17 by actuating a rod 32 to move the levers 28, thus varying the distances between the axis 5a of the pulleys 3, 4 and the axes 2, 8 of the pulleys 1, 7. The pulley cheeks 10,11, then move to vary the effective diameters of the pulleys 3, 4. At the same time the sleeve 21 turns slightly on the hub 19 and due to the connection 33, 34 it moves axially slightly, thus varying the spacing of the outer cheeks 12, 13 to equalize the tensions in the driving belts. In a modification, the parts 17, 18, 28, 33, 34 are omitted and the hub 19 is mounted eccentrically on a fixed spindle. In this case the sleeve 21 is screwed to the hub. Adjustment is effected by giving an angular movement to the hub 19.
Patent GB-1246386-A (GB)
Title: Improvements relating to diffusion of material into a substrate
IPC: C30B31/18
Filed: 1969-02-05
Abstract: 1,246,386. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORP. 5 Feb., 1969 [8 Feb., 1968], No. 6113/69. Addition to 1,122,489. Heading H1K. An impurity is selectively diffused into a semiconductor substrate by applying a layer containing the impurity to the substrate and selectively heating the layer with a pulsed laser beam the duration and intensity of the pulses and the relating positions of the beam and substrate being controlled to achieve the desired diffused region, The semi-conductor substrate (11) may be supported on a carriage (12) so that its position relative to the laser (18) may be varied, for example under computer control, Fig. 1 (not shown). Part of the laser beam is diverted to a monitoring system (26). A light source (28) is arranged so that it projects a light spot on to the substrate at the same point as does the laser so that the substrate may be positioned as desired before energizing the laser. The impurity source layer may comprise pyrolytically deposited SiO 2  containing P, B or As, or P 2 O 5  glass or borate glass, or may be formed by the decomposition of BCl 3  or AsCl 3 . The deposited layer may be photolithographically processed to the desired pattern. Transistors, diodes and integrated circuits may be produced. As shown, Fig. 3, a plurality of transistors isolated from one another by PN junctions may be formed in a single wafer by depositing a layer of an N type impurity on the surface of a P type Si substrate 52 and selectively heating using the pulsed laser beam to produce N type sub-collector regions 53. The excess impurity is removed and an N type layer 58 is epitaxially deposited on the substrate. A layer of a P type impurity is deposited on the surface and is heated to form P<SP>+</SP> type isolation regions 56 and P type base regions 60, the difference in impurity concentration and diffusion depth being achieved by appropriate selection of the laser power and pulse length. The excess impurity is removed and replaced with a layer of an N type impurity which is selectively heated to produce N<SP>+</SP> type emitter region 62 and collector contact region 64. The excess impurity is removed, a layer 66 of SiO 2  is formed and emitter base and collector contacts are applied by vapour depositing a layer of metal and etching to the desired pattern.
Patent GB-540792-A (GB)
Title: Improvements in or relating to fuel economisers for domestic fireplaces
IPC: F24B1/193
Filed: 1941-05-16
Abstract: 540,792. Fuel economisers. MORRIS HEATING APPLIANCES. Ltd., and TOLCHER, J. H. May 16, 1941, No. 6126/40. [Class 126] A fuel economiser for domestic grates consists of a chamber adapted to be placed on the rear of the grate against the fire back having a curved top 1 provided with apertures 2 for directing air entering the bottom of the chamber in an upward direction. The back 5 and one side 3 are made integral and are connected to the curved top and the other side which are also made integral by means of a bolt 10. Baffles 4, 4a 6 are provided. The openings in the top may be in the form of horizontal louvres.
Patent GB-1087839-A (GB)
Title: Improvements in or relating to methods of and apparatus for rolling structural shapes such as h, i and rails
IPC: B21B39/16
Filed: 1966-02-11
Abstract: 1,087,839. Rolling flanged bars. DE WENDEL & CIE. Feb. 11, 1966 [Feb. 22, 1965], No. 6139/66. Heading B3M. Apparatus for rolling flanged bars comprises a three-high roll stand with complementary vertical axis rolls F, F<SP>1</SP>, D, D<SP>1</SP>, H, H<SP>1</SP> positioned between the rolls B, C, E of the stand and has at least one auxiliary stand G<SP>11</SP> with rolls G, G<SP>1</SP> between which the bars are passed after at least one pass in the three-high roll stand. The vertical axis rolls D, D<SP>1</SP>, F, F<SP>1</SP>, H, H<SP>1</SP> are mounted on supports and operate in conjunction with the rolls B, C, E. The position of the supports may be adjusted by means of wedges (I), Fig. 9 (not shown). The roughly formed H-shaped bar is introduced between rolls B, C, D, D<SP>1</SP> and fed thereby. The flanges on the bar are widened and the bar made concentric during this first pass. The bar is returned between rolls E, B, F<SP>1</SP>, F after which it is guided by guides K to the rolls G, G<SP>1</SP> whereby the height of the flanges is reduced to such a dimension that the widening produced by the third pass between rolls B, C, H, H<SP>1</SP> results in the desired final shape. Since the outer working surfaces E 1  of the roll E and the centre working surface C 1  of roll C are inoperative in the above process, the rolls C, E can be interchanged and the central roll B replaced when the operative working surfaces are worn. In an alternative embodiment, Figs. 10-13 (not shown), the final pass is performed in a separate conventional two-high roll stand (not further described), and two pairs of auxiliary rolls (L), (L<SP>1</SP>), (M), (M<SP>1</SP>), Fig. 11 (not shown), are provided, one pair (L), (L<SP>1</SP>) operating after the first pass (f 1 ) and the other pair (M), (M<SP>1</SP>) after the third pass (# 3 ). Conventional threehigh roll stands (T), Fig. 14 (not shown), may be used in conjunction with another three-high roll stand (U) fitted with complementary vertical axis rolls and auxiliary rolls (U<SP>1</SP>).
Patent GB-572290-A (GB)
Title: Improvements in and relating to knives and the like tools
IPC: B26B1/08
Filed: 1944-04-04
Abstract: 572,290. Knife &c. holders. VERNONS INDUSTRIES, Ltd., and KENNERSLEY, G. R. April 4, 1944, No. 6216. [Class 146 (iii)] A knife, file, saw or similar blade is mounted in a casing having a slot through which the blade. may be projected by means of a rotary propelling member mounted in the casing and connected to a threaded part of the blade or a member connected thereto. In one form, Fig. 1, the blade 10 guided for movement in a slot 11b in the end of a casing 11, has a cylindrical tang 10a on which is rotatable a tube 14 having a spiral slot 14a in which a spigot 13 in the tang 10a engages. The tube 14 has a projecting portion 14c to which an operating knob 16 is secured. In a second form, Fig. 15, a flat tang 10a has a slotted lug 10e engaging a spiral rod 14 rotatable within the casing 11 and secured to a plug 17 rotatable by an operating plug. In other forms, the tang is cylindrical and provided with a helical slot engaged by an internal projection or threads on a tubular member fixed to the rotatable operating, plug.
Patent GB-957383-A (GB)
Title: A rotary self-lubricating compressor
IPC: F04C18/32
Filed: 1962-02-19
Abstract: 957,383. Rotary compressors. OFFICINE MECCANICHE SAN MICHELE S.p.A. Feb. 19, 1962 [March 22, 1961], No. 6242/62. Heading F1F. A rotary compressor of the gyratory piston type has a vane 13 secured to the cylindrical piston 10 and adapted to slide in a slot in a socket 14. The space enclosed by the vane and the socket communicates with the centre of the piston by a passage 18. Resilient segments 11a, 11b, with conical outer surfaces, are fitted in recesses in the flanks of the piston, and engage self-lubricating sealing rings 12a, 12b, made, for example, of sintered graphite impregnated with molybdenum disulphide. The sealing rings are formed with radial projections 121 which slide with the vane 13 in the slot in the socket 14, and make sealing contact with the end walls 2, 3 of the casing.
Patent GB-420517-A (GB)
Title: Improvements in moving iron oscillographs
IPC: A61B5/0432
Filed: 1933-03-02
Abstract: 420,517. Oscillographs. MATTHEWS, L. H., and FONSECA, E. C. M. D'ASSIS-, 10, Hensman's Hill, Clifton, Bristol. March 2, 1933, No. 6382. [Class 37] In a moving-iron oscillograph for recording minute potentials such as nerve action potentials and for producing electrocardiagrams, the pen-carrying arm is connected to the armature by a link so arranged that an approximately straight line-law is obtained. In the construction shown, the armature 2 vibrates about an axis 3 and is connected to the pen-carrying frame 5 by means of a link 13 consisting of a pair of parallel wires joined by transverse pins 15, which take rockable bearings against the armature 2 and the end 12 of an operating arm 8 secured to the axle 4 of the frame 5. Fixed to the frame 5 is an arm 11 to which is attached one end of a spring 9, the other end of which is anchored to one end of an arm 10 which is rotatably adjustable about the axle 4. The pen frame 5 is constructed as a braced structure of fine tubular steel, about 0À02 inch in diameter. At its end it carries a pen consisting of a siphon 6, of which one end dips into an ink bath 14, and the other engages a paper band 7. The pen frame 5 is provided with a damper (not shown) consisting of a vane fixed to the frame and dipping into a fluid bath, the degree of dip being adjustable. Specifications 313,539, [Class 37], and 420,516, [Group XV], are referred to.
Patent GB-1372973-A (GB)
Title: Video tape recorder system  having means for suppressing video  track crossover noise during slow and fast motion operation
IPC: H04N5/93
Filed: 1972-02-10
Abstract: 1372973 Video recording and playback VIDEO LOGIC CORP 10 Feb 1972 6385/72 Heading G5R In a video system where more than one field is recorded in each track, e.g. as in Fig. 4 where vertical sync. regions 37/37<SP>1</SP> sandwich two intermediate fields in each track 34, means is provided to blank out reproduced fields containing noise picked up when a scanning head crosses a guard region 35 between two tracks, e.g. when the tape is moved at a different speed from that when the tracks were recorded. In the pulse control circuitry shown, a master flip-flop 84 (Fig. 5A) is always energized to control a gate 93 (Fig. 5D) such that a brightness control circuit is turned down during reproduction of one of the two fields in each track; should the crossing of the scanning head 31 into a guard region 35 occur during such a blanked off field, no further action is taken by the circuitry. When however the crossing changes to the reproduction time of the non- blanked field, a noise pulse from an amplifier (112, Fig. 5C, not shown) is used to switch the flip-flop 84 so that all formerly blanked fields are now reproduced, and all reproduced fields now blanked. In a twohead arrangement (Fig. 8, not shown), blanked fields from one head are filled with reproduced fields from the other. (For Figures see next page.)
Patent GB-308876-A (GB)
Title: Improvements in electrical remote control systems
IPC: B61L5/18
Filed: 1928-03-01
Abstract: 308,876. Froger, H. March 1, 1928. Lamp signals.-A lamp signal is operated by the short-circuiting of a resistance at a distant point and means are provided for operating an independent signal if one of the leads to the said resistance is broken. Several arrangements of circuits are shown in Figs. 1, 2 and 3, in which the lamp circuits are controlled by the, armature of a relay 2, which in Fig. 2 is a differential relay having coils 2<a> 2b, normally balanced. A relay 5 controls the " out of order " signal and its coil is in series with the coil or one of the coils of the relay 2. In the arrangements shown in Figs. 1 and 2, short circuiting of the resistance 9 across the leads 8 causes relay 2 to attract its armature and close the lamp circuit. Relay 5 in series with the leads 8 is de-energized and drops its armature if either lead is broken. In the arrangement shown in Fig. 3, the relay 2 is shunted by connection of the leads 8 and drops its armature to close the signal circuit.
Patent GB-1249456-A (GB)
Title: Device for generating electric pulses on superconductor loops
Inventor: ERBEN KLAUS DIETER
IPC: H01L39/00
Filed: 1970-02-10
Abstract: 1,249,456. Superconductor devices. MESSERSCHMITT-BOLKOW-BLOHM G.m.b.H. 10 Feb., 1970 [17 Feb., 1969], No. 6443/70. Heading H1K. [Also in Division H3] A device for generating electric pulses on a superconductor loop comprises a coil for driving a portion of the loop normal, the loop on both sides of this portion being provided with insulated signal input and output layers and a signal source connected to the input layers. As shown, Fig. 1, the ends of a loop 10 of Type II superconductor material are joined by a strip, preferably of Type I superconductor material provided with signal input conductors 30, 31 of Type I or II superconductor material and signal output conductors 35, 36 preferably of Type I superconductor material. A coil 33 is provided which when energized drives the central portion of the strip normal. In operation the signal source 32 energizes the coil 33 and applies current pulses I to input conductors 31, 30 which generate magnetic fields H 1 , H 2  which induce current pulses Is 1  and Is 2  with associated magnetic fields H 3  and H 4  in the loop. Since the coil 33 drives the centre of the strip normal the current pulses Is 1  and Is 2  move outwards and the coil 33 is then de-energized to allow the centre of the strip to return to the superconductive state. The current pulses propagate round the loop 10 at approximately the speed of light and when they pass the strip again they generate output pulses I M  in the output conductors 35, 36. The output pulses are analysed to determine movements of the system by the Sagnac effect. The strip may be of Pb or Sn vapour deposited on a quartz substrate and separated from the input and output conductors by layers 23, 24, 21 and 22 of insulating material. The strip may also be of a type II or III superconductor material.
Patent GB-420475-A (GB)
Title: Improvements in or relating to the manufacture of glue films
IPC: C09H9/02
Filed: 1933-06-20
Abstract: 420,475. Making glue films. STOCKHOLMS BENMJOLSFABRIKS AKTIEBOLAG, Sandvik, Stockholm. June 20, 1933, No. 6487/34. Convention date, July 5, 1932. Divided out of 420,454. [Class 87 (ii)] [See also Group XIII] In an apparatus for the making of glue films in which liquid glue is supplied to an endless travelling belt and is stripped therefrom in the form of a long sheet or film, the belt is rendered glue-repellant during the operation. Preferably, oil, paraffin or other lubricating agent is supplied continuously to the belt during the operation. In the form shown, paraffin is applied continuously by means of rollers 14, 15 of which 14 is partly immersed in a tank 13 of paraffin.
Patent GB-557373-A (GB)
Title: New disazo dyestuff
IPC: C09B31/065
Filed: 1942-05-15
Abstract: 557,373. Dyes. ATKINSON, J. R., MENDOZA, M., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 15, 1942, No. 6607. [Class 2 (iii)] A diazo dye, giving dark green to greenish black dyeings on leather, is obtained by coupling diazotized 4-nitro-4-aminodiphenylamine-2-sulphonic acid in alkaline medium with 1:8:3:6-aminonaphtholsulphonic acid, rediazotizing and coupling with resorcinol.
Patent GB-487525-A (GB)
Title: Improvements in or relating to a process for the manufacture of compressed ferro-magnetic alloy powder cores
IPC: C22C33/02
Filed: 1937-03-05
Abstract: Ferro-magnetic alloy powder for use in making compressed cores is obtained by reducing the oxides or other compounds of the component metals by coal gas which has been treated at 700-1300 DEG  C. to separate carbon and carried directly, or after a purifying treatment, to the reduction furnace.  The core made from this powder is annealed in a similar gas.  The coal gas is cracked and passed through a tube lined with asbestos wool to the reduction furnace, which is also maintained at 700-1300 DEG  C.  Iron may be used as a catalyst in the cracking operation.
Patent GB-1085723-A (GB)
Title: Film tear line and method of making same
Inventor: BURTON DRURY ROBERTS
IPC: B65D75/58
Filed: 1965-02-16
Abstract: 1,085,723. Bags with tear means. DOW CHEMICAL CO. Feb. 16, 1965, No. 6696/65. Heading B8K. [Also in Division B5] A plastics film enclosure, adapted to be sealed in an air-tight manner after filling, is provided with a tear line which is located near one end of the enclosure. The tear line is formed, prior to manufacture of the enclosure, by printing a coloured line on one surface of a plastics film, forming a line of perforations in the film within the confines of the coloured line, preferably in the mid-region of the line, and passing the film through pressure rollers to reknit the perforations to render them airtight. Reknit of the perforations may be assisted by heat " buildup " from the perforating process. The enclosure, which may have data printed thereon to provide instructions for use of the tear line in opening the enclosure, preferably is made of a heat-sealable polymeric film material, for example polyethylene; the coloured line may be provided by a continuous line of ink.
Patent GB-1142458-A (GB)
Title: Simulated animated toy flower
IPC: A63H3/50
Filed: 1968-01-04
Abstract: 1,142,458. Toy flower. N. R. CHERRY and J. A. SHACKELFORD. 4 Jan., 1968 [26 April, 1967], No. 674/68. Heading A6S. A simulated toy flower has a bud section with flexible resilient petals, and a stem section, and is characterised in that movement of the stem causes the flower bud to open and close. When the bud is closed, rotation and downward movement of stem 12 causes cup 38 to move downward and the petals 50 to open, being forced open by spring member 52. At the bottom of stem 12 is a locking device concealed in a flower pot. Upward and rotary movement of stem 12 causes the petals 50 to close by being pushed by cup 38. Toy objects may be removably mounted within the bud.