baber/WOPTO huggingface dataset:
Patent GB-450570-A (GB)
Title: Improvements in or relating to barrels and like containers and methods of forming the same
IPC: B65D8/10
Filed: 1935-03-30
Abstract: 450,570. Bending wood. SEYMOUR & PECK CO., 917, West 20th Place, Chicago, U.S.A.-(Assignees of Arnold, C. B.) March 30, 1935, No. 10020. Convention date, Nov. 16, 1934. [Class 145 (ii)] [See also Group XVII] In forming a barrel &c. from a single panel of plywood, the panel p is passed between rolls 14, 15 so that the face which is subsequently the outer face of the barrel is moistened with water, glue, dye or other liquid.
Patent GB-691466-A (GB)
Title: Improvements in or relating to photographic apparatus
IPC: G03B17/52
Filed: 1949-04-14
Abstract: 691,466. Photographic processing apparatus; camera. INTERNATIONAL POLAROID CORPORATION. April 14, 1949 [April 30, 1948], No. 10153/49. Classes 98 (i) and 98 (ii). A housing contains means for mounting an exposed photo-sensitive sheet material and another sheet material, and guide means for directing the two materials in superposed relation past a pair of liquid spreading members provided with shoulders to engage the edges of the assembly of sheets and maintain the intermediate portions of the spreading members spaced apart a distance greater than the combined thickness of the two sheets, the intermediate portions being adapted to effect the spreading of processing liquid between the sheets to a thickness controlled by the height of the shoulders. Edge-spacing strips may be used instead of, or in addition to, the shoulders. As described, the liquid spreading members are rollers, one of which may be resiliently urged towards the other, and may be provided with a convexly curved surface defining a converging mouth with the surface of the other member.. Normally the processing liquid is carried in containers attached to the secondmentioned sheet material and a positive image is formed on the latter as result of release and spreading of the liquid between the two sheets by the rollers and migratory transfer of a reversal image in development. The shoulders on the rollers, or the spacing strips, limit the spread of processing liquid to the desired areas and prevent leakage. With the addition of exposing means for the photo-sensitive sheet material the apparatus constitutes a self-' developing camera; thus, as shown sectionally in Fig. 1, photo-sensitive sheet 30 from spool 28 at the right-hand side of the drawing passes behind lens assembly.14 and is guided to meet, after exposure, the other sheet material 40, having thereon liquid-containers 41, in the nip of rollers 42, 44 of which the former is urged toward the latter by springs 66. After processing, which occurs while the two sheets. are in a dark chamber defined by a partition 20, between exposing and processing parts of the camera, and rear cover 32, the sheets may be withdrawn through mouth 57 and separated. Figs. la to 3 (not shown), illustrate in detail the roller ends and shoulders thereon, and Figs. 4-6 the spacing strips which may replace, or be used in addition to, the shoulders. Specification 684,591 is referred to.
Patent GB-1463611-A (GB)
Title: Radiation detector having an array of pn junctions
IPC: H01L27/146
Filed: 1974-03-07
Abstract: 1463611 Semi-conductor radiation detector SOC ANON DE TELECOMMUNICATIONS 7 March 1974 [4 April 1973] 10208/74 Heading H1K An infra-red radiation detector 16 comprises a block 1 of N-type semi-conductor material having thereon an array of projecting blocks 5 of P-type material forming a matrix of elementary P-N junctions. Radiation 3 is incident on the plane face 2 of the N-type material. In one embodiment, as shown, face 2 is adhered to a germanium plate 17 held in the fingers of a cryostat 14. The germanium may be shaped as an optical condenser 20 and also functions as a thermal conductor and an electrode for the N- type material 1. Each P-type projection 5 has a soldered connection 9. The semi-conductor material is a compound of Cd, Hg and Te and receives a protective coating, e.g. of a silicon oxide, PTFE and epoxy resin except on the sensitive face 2. In another embodiment, radiation impinges directly on the face 2 which has a soldered connection at one edge (8) (Fig. 1, not shown). The P-type material may be formed by diffusion followed by a photo-engraving operation to produce recesses extending through the P-type material into the N-type so forming the projecting blocks 5.
Patent GB-662077-A (GB)
Title: Improvements in or relating to electric converting apparatus
IPC: H02M3/42
Filed: 1949-04-14
Abstract: 662,077. Converting. ELTRON, Inc. April 14, 1949 [May 1, 1948], No. 10212/49. Drawings to Specification. Class 38 (ii). In a system for converting a low direct voltage to a high direct voltage and comprising a vibrator energizing the two parts of the transformer primary, a voltage doubling circuit included in the transformer output circuit and comprising a pair of series connected condensers charged alternately over further and synchronized contacts on the vibrator such that the output voltage taken from across the two condensers is equal to the sum of the respective condenser voltages, a further condenser is connected across the secondary winding to reduce sparking at the vibrator contacts. One end of the transformer secondary is connected to the junction of the condensers whilst the other end is connected to a reed contact cooperating alternately with a pair of fixed contacts connected to the output terminals. The vibrator reed may carry two contacts. each co-operating with a pair of fixed contacts, Alternatively the vibrator may have two reeds, mechanically coupled, and each carrying a contact co-operating with a pair of fixed contacts thereby permitting a common ground connection for a terminal of the input (battery) and output.
Patent GB-1019891-A (GB)
Title: Synthesis of halogenated secondary or tertiary alcohols
Inventor: HASZELDINE ROBERT NEVILLE
IPC: C07C31/34
Filed: 1961-03-21
Abstract: Secondary or tertiary alcohols of the general formula R1R2R3C.OH, in which R1 and R2 each represent a perfluorinated or perchlorinated alkyl group and R3 represents a hydrogen atom or a per fluorinated or perchlorinated alkyl group are made by a process which comprises reacting an aldehyde or ketone R1R3CO with a Group I or II metal, especially sodium, salt of a carboxylic acid R2CO2H in the presence of a hydrogen-containing organic solvent containing only non-active (Zerewittonoff) hydrogen, especially an ether, e.g. demethoxyethane. The example describes the preparation of 1,1,1,3,3,3-hexachloropropan - 2 - ol from chloral and sodium trichloroacetate in dimethoxy ethane. The description refers to the use of solvents of moderate to high dielectric constant containing hereto atoms O or N lacking active hydrogen.
Patent GB-407205-A (GB)
Title: Improvements in and relating to electric control switches
IPC: H01H3/42
Filed: 1933-04-06
Abstract: 407,205. Rocking-bar controllers; switches held set and freed mechanically. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) April 6, 1933, No. 10348. Convention date, April 6, 1932. [Classes 38 (iii) and 38 (v).] An electric switch has a contact normally operated by a principal cam, but alternatively operated by an independent auxiliary cam moving from a condition in which it is previously set in response to operation of the switch contact by the principal cam. The invention is described with reference to a railway motor control switch. Upon rotation of a shaft 1 and cam 3, to close contacts 10, 11, a roller 13, situated on the curved surface of a freely mounted cam 5, causes the latter to rotate and raise a piston working in a cylinder 8, so that, upon overload, no-voltage, or release of a deadmans handle, the piston is returned to the position shown, by compressed air, and the cam 5 is rotated to open the contacts 10, 11, independently of the position of the cam 3. In a constructional example, a detent 6 by which the cam 5 is coupled to the piston, is so shaped that its outer surface forms the co-operating surface for the roller 13. The release mechanism 8, 5, may be locked in its operated position, so that the compressed air supply to the cylinder 8 need not be maintained. This locking may be released by energization of a magnet through contacts closed only between the zero and first positions of the main controller, and contacts closed only when the locking mechanism is in its effective position. As applied to a tapped transformer control system, several switches are provided, all released by a common pneumatic drive.
Patent GB-382549-A (GB)
Title: Improvements in or relating to winding yarns on to multiple-end packages
IPC: B65H51/22
Filed: 1932-04-11
Abstract: 382,549. Winding yarns on to multiple-end packages. BRITISH CELANESE, Ltd., 22, Hanover Square, London. April 11, 1932, No. 10395. Convention date, April 11, 1931. [Classes 120 (ii), 120 (iii), and 142 (iv).] In winding yarns on to multipleend packages a number of yarns 9, Fig. 1, are condensed into a flat band and wound on to a large diameter reel 14, the band being then wound from the reel on to a take-up bobbin 19 along which it is traversed. The supply bobbins 5 in the creel 8 are braked by weighted bands 16, 18, Fig. 3, so that the yarns are wound at equal tension. After the yarn has been wound on the reel 14 the driving mechanism is disconnected and the reel braked at 21 to tension the band of yarn in passing to the bobbin 19. The band of yarn may be further condensed before winding on the bobbin 19. The yarns may be treated during the process with coating substances, e.g. tricresyl phosphate, mineral oils or other substances having a high dielectric strength may be applied to yarns intended for use as insulating material.
Patent GB-836588-A (GB)
Title: Process for polymerising ethylene
IPC: C08F10/00
Filed: 1956-04-05
Abstract: Ethylene is polymerized in an inert organic diluent using a Ziegler catalyst and the process being characterized in that at least one catalyst component is introduced into the reaction vessel during the polymerization whereby catalyst is produced continuously.  Olefin and diluent may also be added continuously and the process may easily be carried out in various specified continuous flow operations.  The starting mixture may already contain polymer in order that a constant consistency is maintained.  Carbon tetrachloride or oxygen may be used as molecular weight regulators.  Materials used in the subsequent purification are isopropanol, acetone, nitric acid and water. Specifications 799,392, 799,823, 801,031, 828,201 and 828,692 are referred to.
Patent GB-746905-A (GB)
Title: Improvements relating to electro-photographic systems
Inventor: CHILCOT ARTHUR LESLIE
IPC: G03B42/04
Filed: 1953-04-17
Abstract: 746,905. Producing photographs electrically. FERRANTI, Ltd. April 15, 1954 [April 17, 1953], No. 10499/53. Drawings to Specification. Class 98 (2). A plate having a conductive surface coated with a photoconductive insulating material which has been uniformly charged is placed in a cassette having a front wall the inner surface of which is wholly or largely conductive, a potential of the same sign as but of a higher value than that of the charged layer of the plate is applied to said inner surface, and the plate is exposed to X- or gamma-rays whilst the inner surface or conductive part is maintained at said applied potential. Typically the cassette is a dark slide and the front wall sliding member is of insulating material carrying on its inner surface a conductive mesh or coating. Development may be effected as in Specification 723,539.
Patent GB-654986-A (GB)
Title: Improvements in or relating to electric circuit arrangements including saturable inductances or transformers to provide waveform and phase-changing and phase-shifting
IPC: H01F38/02
Filed: 1948-04-15
Abstract: 654,986. Phase changing. GENERAL ELECTRIC CO., Ltd., and DUNHAM, C. R. April 15, 1948, No. 10518. [Class 38 (ii)] A polyphase non-linear circuit arrangement 1 suitable for providing voltage pulses to the control electrodes of a mercury arc rectifier comprises a plurality of saturable inductances or transformers arranged preferably as described in Specification 619,337 and supplied from a single phase supply 6 through a phasesplitting network, preferably comprising condensers C1, C2 of such value which in conjunction with the non-linear circuit provides a 3-phase supply to terminals 2-4. A further condenser 7 may be provided to alter the angle between the single phase current and voltage. A phase shifting and phase splitting network 9 adapted to provide the single phase supply from a 3-phase supply and shift the single phase over an angle at least 180 degrees comprises in the arrangement shown an autotransformer 10 and the primary 12 of a further transformer connected in series across two phases 14, 15 of a 3-phase supply with one side of the single phase output connected to a tapping 11 through the secondary 16 of the transformer 13 and with a resistance load 19 connected between the mid-point 17 and the tapping point 11 on the auto-transformer. The other side of the single phase output is connected to a point 18 of voltage equal to half that across the auto-transformer and in quadrature thereto. Upon adjustment of the tapping point 11 and hence the magnitude and phase angle of the voltage between points 11 and 18 the current taken by the load resistance 19 also varies thereby altering the quadrature component of voltage injected into the single phase system by transformer 13 which is preferably arranged to be equal to half the voltage across the auto-transformer maximum displacement of tapping 11. In another arrangement (Fig. 2, not shown), condenser 7 provides a current lead of 60 degrees and a fixed inductance in series with a saturable inductance is connected across two phases of the 3-phase supply with the single phase output derived from the junction between the inductances and the neutral of the 3-phase supply. The range of the saturable inductance is preferably made to provide from one-fifth to five times that of the fixed inductance in order to obtain a variation phase angle of 180 degrees or more, but not exceeding 240 degrees.
Patent GB-1380981-A (GB)
Title: Thrust bearing
IPC: F16C33/10
Filed: 1972-03-07
Abstract: 1380981 Bearings N LAING I LAING and L LUDIN 7 March 1972 [18 June 1971] 10568/72 Heading F2A A fluid thrust bearing has two co-operating, load bearing elements 1, 3 each having a surface of revolution which constitutes the bearing surface, one of the surfaces having formed in its surface at least two segmental groups 4 of grooves, the width of the grooves being greater than their depth. The grooves in each group are inclined to the radius of the bearing element so that on relative rotation of the surfaces in one direction pressure in the lubricant increases at one end of the grooves, conduits 12 being provided to connect the high pressure end of each groove to the low pressure end of the adjacent radially inward groove in its group so as to cause a pressure increase in the radially innermost groove of each group. The bearing surfaces may be flat or conical or spherical. The connecting conduits may be formed in the bearing element remote from the face having the grooves or may be formed in the same face, the conduits having a greater depth than width. One of the bearing elements may be resiliently mounted so as to provide a preload. The bearing surfaces are preferably of silicon carbide, silicon nitride, titanium carbide, or tungsten carbide and in particular of SiC containing carbon whiskers.
Patent GB-602466-A (GB)
Title: Improvements in or relating to mowing, reaping and reaping and binding machines
IPC: A01D34/03
Filed: 1945-04-27
Abstract: 602,466. Mowing-machines. BOBARD, E. April 27, 1945, No. 10621. Convention date, Sept. 11, 1942. [Class 6(iii)] A mowing &c. machine has a cutter transverse to the direction of travel, an inverted U-shaped transverse frame 3, 4a and 6, which bridges the crops and supports the cutter bar at opposite ends thereof, and draught means 1, on said frame at one side of the cutter bar. The machine may be horse-drawn as in Fig. 1 or selfpropelled-see light lines Fig. 1-wherein a steering wheel 18 has an engine mounted therein. In the latter case the shafts 1 are replaced by two bars 14, 15. The cutter bar is driven from the wheel 4, and it may be raised from the ground.
Patent GB-1423232-A (GB)
Title: Apparatus for burning sample materials and collecting the combustion gases
IPC: G01N31/12
Filed: 1973-03-05
Abstract: 1423232 Combusting samples for analysis MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 5 March 1973 [7 March 1972 30 Nov 1972 (2)] 10621/73 Heading G1B Apparatus for burning samples of for example plastics materials to carry out analysis of the combustion products comprises combustion means 1 having a combustion chamber 2 for the sample and a furnace 3, gas supply means 9, 14 for introducing at a predetermined and adjustable rate air or other gas into the combustion chamber, dehumidizing exhaust duct 12 connected to the combustion chamber for removing moisture from the combustion gases by allowing the gases to cool, and gas collection means 15 having a cylinder 17 communicating with the combustion chamber and a piston 18 slidable in the cylinder, either the cylinder or the piston being displaceable relative to the other, and means for causing relative sliding movement between the piston and the cylinder at a predetermined and adjustable rate, there being incomplete sealing between the cylinder and the piston such that, if a pressure differential occurs between gases at either side of the piston, gas can flow past the periphery of the piston to eliminate this. The piston may have peripheral polytetrafluoroethylene seal (20) Fig. 3, (not shown). The apparatus may also include de-humidifying unit 11  for drying incoming air, filter means 22, 23 thermocouple (34) for measuring the temperature of quartz beads 8 in the combustion chamber. Piston 18 may be operated manually or mechanically as shown and preferably the flow-rate of air or other gas introduced by 9 and the flow-rate of combustion gases into cylinder 17 are such that atmospheric pressure is maintained in the combustion chamber. In use, when the combustion gases have been collected in the cylinder, their volume is measured and conduit 16 is disconnected from the combustion chamber at 21 and reconnected to an infrared absorption measurement cell.
Patent GB-839526-A (GB)
Title: Improvements relating to forming apparatus for profile grinding wheels
IPC: B24B53/08
Filed: 1958-04-02
Abstract: 839,526. Trueing grinding wheels. HALLEWELL, H. S. Feb. 6, 1959 [April 2, 1958], No. 10650/58. Class 60. A trueing apparatus for profile grinding wheels comprises a mounting 3 and a tool carrier having two main parts, the first being a spindle 17 journalled without end-play in bearings 18 for angular movement about its vertical axis, and the second part being a tool-holder 24 which is provided with two or more trueing tools 28, 29 and is so mounted as to be incapable of angular movement relative to the first part but capable of adjustment in a direction parallel to the axis about which the first part may move. A support 21, rigidly fixed to a plate 20 attached to the lower end of the spindle 17, carries vertical slides 22, 23 attached to the upper part of the tool holder 24, the vertical adjustment of which is effected by a pinion 25 engaged with a rack 26 on one of the slides. One tool is intended for coarse and the other for fine forming, the holder being so adjusted that the operative tool has its working edge located in the horizontal plane containing the grinding wheel axis. The tool holder 24 is fixed in its required position by a wedge 27 carried by the support 21 and operable to exert side pressure on the slides 22, 23. In the embodiment shown in Fig. 1, the spindle 17 is journalled in the projecting portion of an arm 3 of a pantograph comprising also the arms 4 and 5 and side-link 6, arranged generally as described with reference to Specification 824,735, but the arm 3 may be replaced by a fixed mounting, a sliding connection being provided between the plate 20 and the support 21 so that the tool holder 24 may be moved horizontally towards or away from the axis of the spindle 17, the forming tools 28, 29 then being capable only of following arcuate paths about the axis of the spindle. Specification 573,877 also is referred to in the Provisional Specification.
Patent GB-751269-A (GB)
Title: Improvements in or relating to mechanical handling trucks
IPC: B66F9/10
Filed: 1954-04-12
Abstract: 751,269. Adjusting wheel bases. PERNIN & FILS., T. April 12, 1954 [April 29, 1953], No. 10733/54. Class 108 (2). [Also in Groups XXX and XXXI] A fork lift truck is provided with a telescopic chassis which enables the wheel base to be lengthened without moving the mast. The rear driving and steering unit 1 and the mast 10 are mounted on a chassis part 2, whilst the wheels 8 are each mounted on a channel member 6 adapted to slide along the part 2. The members 6 are interconnected and actuated simultaneously by an hydraulic ram, or rack-andpinion mechanism (not shown), connected between the part 2 and members 6. In a modification (not shown) each member 6 is connected to a separate hydraulic jack and thus the members 6 can move independently. According to a further modification (not shown) the invention is applied to a four-wheel truck in which either the front or rear wheels are adapted to be displaced relative to the mast. In a further modification (not shown) the wheel displacing ram is interconnected with the fork' lifting and mast tipping rams in such a manner that the wheel base increases in proportion to the extent of the lift and the forward inclination of the load.
Patent GB-550151-A (GB)
Title: Improvements in liquid-immersed electric circuit breakers
IPC: H01H33/75
Filed: 1941-08-23
Abstract: 550,151. Oil-blast switches. ELECTRIC CONSTRUCTION CO., Ltd., and BOYD, J. M. Aug. 23, 1941, No. 10770. [Class 38 (v)] An arc-chamber for a liquid-immersed switch comprises a series of insulating plates B ... H clamped between end plates A, J which, with the plates C, E, G, define the end walls of cells 16 ... 19, the side walls of which are defined by aligned openings in each of the sets of plates B, D, F, H. The openings may be elliptic, or circular and eccentric to the contactaxis, but are preferably Pear-shaped as shown in Fig. 2 for the openings b in the upper set of three plates B. The openings of plates D, F, H forming the cells 17 ... 19 are angularly displaced from one another and from b, Fig. 2. The subsequent plates are each formed, below, and aligned with, the small ends of the pear-shaped openings, with apertures leading to the open space below the structure, the so-formed passage from cell 16 being shown on the left of Fig. 1. When the contact 11 is being lowered to open the circuit, there is always sufficient pressure in any cell to prevent arc-gases from the cell below from rising into it through the contact aperture. The arrangement of the contacts may however be transposed, and the assembly may also be mounted horizontally. The Specification refers to an assembly having more than four cells, and to a plunger 12 arranged in the hollow contact 11 as in Specification 504,832. The Provisional Specification refers to an arrangement in which the pear-shaped cells are successively displaced angularly from one another by 90 degrees.