baber/WOPTO huggingface dataset:
Patent GB-173621-A (GB)
Title: Improvements in or relating to circuit controlling apparatus suitable for use in wireless telegraphy
IPC: H04L27/04
Filed: 1920-10-08
Abstract: 173,621. Creed, F. G., and Creed & Co.. Ltd. Oct. 8, 1920 High - potential switches; sparking, preventing; pneumatic actuation. - An arrangement for rapidly making and breaking a circuit carrying a large current, specially suitable for use in high speed wireless telegraphy, comprises one or more pairs of contacts a, m, adapted to he closed or opened by motors n, under the control of a main motor 4, which is controlled in accordance with the signals to be transmitted. Means are also provided for causing an air blast to pass between each pair of contacts a, b. In the arrangement shown in Fig. 2, a polarized relay 13, actuated in accordance with the signals to be transmitted, reciprocates the slide valve of a main compressed-air motor 4, the piston rod 6 of which extends through both ends of the cylinder and conveys a rotary motion to the rock shaft x through the bell-crank levers 7, 8, 3, link 2, and arm 1. The rock shaft x operates the slide valves of a number of secondary compressed-air motors n, separately but in unison through links v, pivoted to arms w integral with collars w<1> adjustably clamped on the shaft x. The pistons m are limited in movement by stops s, and are connected by insulator rods k to spindles h, which carry the movable contacts b and slide in bearings i. The stationary contacts a are adjustably mounted in bearings d by means of screwed shanks c and clamping bolts d<1>. The movable contacts b are connected in pairs by flexible links o and the contacts a by the straps p so that the power circuit may be simultaneously opened and closed at a number of points. The common air supply which operates the motors 4, n is also connected to a pipe t running below the contacts a, b, and provided with narrow slits u through which an air blast is directed between the contacts. In the modification shown in Fig. 6, the valve of the main motor 4 is reciprocated by the forked ends 20<a> of the relay armature 20. Movement of the piston 6 is directly communicated to a shaft 19, and thence by means of the bell cranks 17<a> and rods 16, v<1> to the valves of all the secondary motors n which are arranged in pairs on an insulating base 15 on either side of the shaft 19. The movable contacts are mounted on the pistons m and limited in movement by stops s. The rods 16 are adjustably connected to the cranks 17<a> to ensure the simultaneous opening and closure of all the contacts. According to another modification, all the secondary motors n are arranged side by side, as in Fig. 2, their valves being adjustably mounted on a longitudinal rod which forms an extension to the piston of the main motor 4.
Patent GB-448545-A (GB)
Title: Improvements in electric arc current converters with electrodes adapted to operate in streaming extinguishing means
IPC: H01T11/00
Filed: 1935-10-16
Abstract: 448,545. Arc converters. MARX, E., 43, Husarenstrasse, and BUCHWALD, H., 34, Bultenweg, both in Brunswick, Germany. Oct. 16, 1935, No. 28622. Convention date, Oct. 25, 1934. [Class 39 (i)] In an arc converter which comprises main and screen electrodes 3, 5, Fig. 1, and means for striking between a main electrode and an auxiliary electrode an arc which is subsequently blown over to the second main electrode, the auxiliary electrode is arranged within an axial bore or aperture in the main electrode and is spaced therefrom to provide a channel for the fluid stream. Fig. 2 shows alternative constructions of the auxiliary electrode 22 and of the aperture in the main electrode 3. Parts of the electrodes, such as 16, Fig. 1, may be coated with metal which is oxidized to form an insulating coating to prevent arcing thereto. To facilitate the extinction of the arc a radial gas stream is provided. Specification 429,060 is referred to.
Patent GB-865292-A (GB)
Title: Method of producing ortho-(bis(4,4-hydroxyphenyl)-methyl)-benzyl alcohol
IPC: C07C37/00
Filed: 1959-08-21
Abstract: Ortho-bis (4, 41-hydroxyphenyl) methylbenzyl alcohol is produced by reducing the dibenzyl-ether of phenolphthalin acid, or p  the ester or the chloride thereof, with a complex metallic hydride in a neutral solvent whereby ortho-bis (4, 41-benzyloxyphenyl) methyl-benzylalcohol is obtained, and then splitting off the two benzyl radicals by the action of hydrogen in the presence of a catalyst such as palladium-on-carbon or Raneynickel.  Suitable complex metallic hydrides are: LiAlH4, LiBH4, NaAlH4, NaBH4, Mg(AlH4)2, Ca(BH4)2 and Al(BH4)3.  Suitable neutral solvents are:- tetrahydrofuran, the dimethyl ether of ethylene glycol, di-n-butyl ether, and a mixture of di-n-butyl ether and benzene. The di-benzyl ether of phenolphthalin acid required as starting-material for the above method is obtained by boiling an alcohol solution of phenolphthalin acid, containing an alkaline alcoholate, with an excess of benzyl chloride.
Patent GB-1278826-A (GB)
Title: Improvements in or relating to semi-conductor devices
IPC: H01L29/417
Filed: 1969-06-06
Abstract: 1278826 Integrated Darlington circuits ROBERT BOSCH GmbH 6 June 1969 [8 June 1968] 28754/69 Heading H3T [Also in Division H1] In an integrated form of Darlington circuit formed by planar techniques a resistor R T  in parallel with the driver emitter junction is constituted by a thin strip of base material joining the base regions of the two transistors, and the driver emitter is connected to the power transistor base by a metal layer extending over this strip in direct contact with semiconductor material of the body. A typical arrangement is shown in Fig. 2. There the emitter 14 of the driver has a bifurcated arm 14a, 14b extending from its main annular portion over the strip on to the base region of the power transistor, to which it is short-circuited by the electrode 23 which constitutes at 23a the emitter of the driver and at 23b the base of the power transistor. Short-circuiting of one limb of the emitter electrode to a narrow strip 27 of the base region effectively provides a resistor R L  shunting its emitter junction and a protective diode in parallel with its emitter-collector current path. To reduce sensitivity to voltage surges the condition R T /R L  > (F TT +F LT )/F LT  has to be satisfied, where F TT  and F LT  are the areas of the base surfaces covered by the emitters of the driver and power transistor, respectively. In another embodiment, Fig. 5, in which the two resistors 19, 27 are differently disposed, the periphery of the driver emitter zone diagonally opposite the point where resistor 19 joins it is thinned and an additional arcuate base contact provided on the base area thus exposed. It is stated that the contacts length should be at least equal to the periphery of the power transistor divided by its amplification factor.
Patent GB-364096-A (GB)
Title: A bed commode
IPC: A47C20/02
Filed: 1930-09-26
Abstract: 364,096. Sanitary mattresses. BERG, A., 13, Surrey Lane, Battersea Park, London. Sept. 26, 1930, No. 28810. [Classes 52 (ii) and 52 (iv).] A sanitary convenience for use on beds has a box-like frame A with an upholstered top and central aperture B communicating with a bed-pan C and is provided with an angularly adjustable back-rest D and a leg-rest E detachably secured by press studs.
Patent GB-1512067-A (GB)
Title: Electric discharge arc tubes
IPC: H01J61/54
Filed: 1975-07-09
Abstract: 1512067 Metal vapour lamps GENERAL ELECTRIC CO 9 July 1975 [8 Aug 1974] 28918/75 Heading H1D In the vitreous arc tube of an A.C. discharge lamp in which electrolysis may take place between the neighbouring leads of an auxiliary starting electrode and an adjacent main electrode in the seal at one of the rounded ends of the tube, when the starting electrode is connected via a resistor to the main electrode at the other end, electrolysis can be prevented by allowing the starting electrode to project inwards not more than 10% of the inside diameter of the tube with a gap between its tip and the adjacent main electrode sufficient to ensure that no discharge occurs between them in normal running. This causes the p.d. driving the electrolysis to oscillate symmetrically with the supply voltage, leaving zero mean direct component. In N2 filled lamp 1 enclosing fused silica arc tube 8 having a fill of Ar, Hg and Na, Sc, Th iodides, starting electrode 11 is connected to opposite main thermionic electrode 10 by resistor 16 of 10-100 kOhm, and on starting ionizes gas between itself and adjacent thermionic main electrode 9. Electrolysis due to penetration of Na<+> would normally be expected near the corner 33 of Mo step seal 22, but is inhibited.
Patent GB-445696-A (GB)
Title: Improvements in or relating to stays for windows and the like
IPC: E05C17/38
Filed: 1934-10-09
Abstract: 445,696. Window &c. stays. MULLINS, F., Rhodesia, Boreenmanna Road, Cork, Irish Free State. Oct. 9, 1934, No. 28935. [Class 65 (i)] A window &c. stay consists of a single plate provided at one end with holes 3 for fixing it by screws &c. to a window frame from which it extends in a plane at right angles to the pivotal axis of the window. It is provided with an arcuate series of slots 4 which extend with their lengths parallel with the window frame for receiving a bolt &c. carried by the window. A stop 6 may be provided at the outer end of the stay. Specification 442,306 is referred to.
Patent GB-835873-A (GB)
Title: Improvements in or relating to the manufacture of multicore electric cables
Inventor: DAVEY EDWARD LESLIE
IPC: H01B13/02
Filed: 1955-10-11
Abstract: 835,873. Manufacturing cables. BRITISH INSULATED CALLENDER'S (SUBMARINE CABLES) Ltd. Oct. 10, 1956 [Oct. 11, 1955], No. 28969/55. Class 100 A method of manufacturing a multi-core electric cable comprises separately and completely coiling down the cable cores on a support surface which is capable of rotation about a vertical axis, thereafter rotating the support surface while withdrawing the cores upwards therefrom and bringing them together to form a helically laid-up group of cores, and coiling down the group on a 'second support surface whicn may or may not be rotatable. Cores, e.g. 1, 3, are coiled down as shown in broken lines by bringing a turntable, e.g. 7, beneath a driven sheave 28 by rotating a turntable 10 and locking it in position. When coiling down is completed on all the auxiliary turntables, which may have been rotated while coiling down, the cores, e.g. 1, 3, and inter-core fillers 13 are withdrawn and assembled at a closing die 15, the turntable 10 being rotated to twist the cores together and possibly also the turntables, e.g. 7, 9, to insert or remove twist from the cores as desired. Tape is wrapped helically about the group 17 of cores by a taping head 16, and then the group 17 passes through a haul-off system 18 comprising endless belts which grip the sides of the group 17 and forward it to a storage unit 19 comprising two sets 26, 27 of grooved pulleys over which the group 17 passes several times and one of which 26 is adjustable towards and away from the other. An external sheath of lead or plastic is applied at a press 20 through which the group 17 is drawn by a haul-off system 22 before being coiled down on a rotatable turntable 25. Specificaton 834,405 is referred to.
Patent GB-745286-A (GB)
Title: Improvements relating to the manufacture of shoes
IPC: A43B13/38
Filed: 1952-11-17
Abstract: 745,286. Boots &c. KEARNS, V. Nov. 6, 1953 [Nov. 17, 1952], No. 29042/52. Class 17 (2). A method of making shoes, more particularly with uppers of the same material as a dress, comprises sewing at 5 an upper 4, which has been cut with the aid of a pattern, to a top insole 1 which was sewn at 3 to a bottom insole 2 of substantially the same size so as to leave a strip at their edges unattached. The raw edge 6 of the upper is turned in between the insoles 1, 2 and they are then secured together and to the upper by stitching 7. The stitching may be covered by a trimming such as a band 9. A strong main sole 8 is attached such as by stitching or adhesive at least to the edges of the bottom insole 2 before the attachment of the upper. High or wedge heels may be provided. The insoles may be of thin stiff felt, the edges of which may be bound with bias binding, or each may comprise two layers of leather cloth or thin leather, one layer of each being turned-in and sewn in position. The upper and insoles may be assembled and fitted on the foot or on a plastic form.
Patent GB-229381-A (GB)
Title: Improvements in retreading and vulcanizing plants for tyres
IPC: B29C35/00
Filed: 1923-11-19
Abstract: 229,381. Matthews, A., Malley, V. St. C., and Rowley, H. W., (trading as Express Vulcanizing Engineers). Nov. 19, 1923. Vulcanizing tyres. - In tyrevulcanizing plant of the type in which transversely adjustable, moulds are employed, the heating device, such as a row of gas jets or electric resistance, is located close to the mould. A frame 1, Fig. 1, carries arcuate moulds 3, transversely adjustable by nuts 7 on bolts 6, and spaced by a tread matrix 8. Placed beneath the matrix 8 is a pipe 11 with jets 12, the gas supply to which may be controlled by a thermostatic regulator 13. Electric resistances may be placed in the same position. The tyre is held against the mould by an air or sand bag clamped by a series of clamps consisting of transverse bars 15 passing under rollers 21 in bifurcated lugs 20, and carrying screws 16 with heads 17 and springs 19, which can readily be centred, whatever be the spacing of the side moulds. For rerubbering side walls and beads, side moulds 23, Fig. 2 are inserted. A shelf 24 with clamps is provided' on the side of the mould 3 for repairing inner tubes.
Patent GB-482755-A (GB)
Title: Improvements relating to mechanism for retaining casement windows and fanlights in open positions
IPC: E05D7/08
Filed: 1936-10-28
Abstract: 482,755. Stays; hinges. SHOWELL & SONS, Ltd., E., and ALLART, J, W. Oct. 28, 1936, Nos. 29238 and 33767. [Classes 65 (i) and 65 (ii)] Pivoting adjustments.- A device for retaining windows in the open position comprises a disc 4, preferably flanged, fixed on the frame and a disc 9a, also preferably flanged, pivotally mounted on the disc 4 by a pin 9 and connected by a link 14 to a bracket 15 fixed to the sash, a spring 11 being under compression between the discs to produce the required friction to hold the window in the required position. In the simplest form, the spring bears directly on the discs, but washers 16 may be interposed, and in the form shown very smooth movement is obtained by providing antifriction balls 17 between the washers and the discs. The pin 9 is shown as integral with the disc 9a, and the parts are held together by a nut 11 secured by a set-screw. Means may be provided to limit the relative rotation between the parts; such as a lug 4c on the member 4 and a pin or stud 9d which may also serve to connect the link 14 with the disc 9a.
Patent GB-902703-A (GB)
Title: Penicillins
Inventor: DOYLE FRANK PETER
IPC: C07D499/48
Filed: 1960-08-25
Abstract: Relates to the epimers of a -aminobenzyl-pencillin, 6-[D(-)a -aminophenylacetamido]-penicillanic acid and 6-[L(+)a -aminophenyl-acetamido]-penicillanic acid and non-toxic salts thereof, which may be prepared by coupling 6-amino-penicillanic acid with the D-or L-form of a -aminophenylacetic acid having its amino group protected, or a salt thereof, and thereafter removing the protecting group under sufficiently mild conditions to avoid destruction of the penicillin nucleus, e.g. by catalytic hydrogenation.
Patent GB-1348860-A (GB)
Title: Incinerator
IPC: F23G5/32
Filed: 1972-06-22
Abstract: 1348860 Incinerators GENERAL ELECTRIC CO 22 June 1972 [2 July 1971] 29365/72 Heading F4B A horizontal incinerator having a combustion chamber 22 is fed with waste and primary air by a pipe 20 arranged tangentially in a side wall of the chamber, to produce a vortical movement of the waste towards end wall 24. The vortical movement is maintained by the introduction of secondary air through tangential openings 44, this introduction being controlled by dampers 56 in each of the supply pipes 46. The waste is ignited by a burner 38, gaseous products being removed through a discharge flue 76, and other non-combustible products through an opening 85, and passed to a separator 96 through a conduit 86.
Patent GB-245904-A (GB)
Title: Improvements in or relating to apparatus for the protection of stored crops
IPC: E04B7/16
Filed: 1924-12-08
Abstract: 245,904. Dixon, R. Dec. 8, 1924. Sheds.-An adjustable cover for use in protecting crops, machines, or animals, comprises uprights 1, joined at their upper ends by a rigidmember 2, and a sliding roof structure 6 which is provided with channels 7 at each end into which fit the uprights so as to prevent swaying. The top bar of the frame is stiffened by a tension cable 5 which is secured at its ends to extensions of the uprights and passes under a cross-bar 26 at the centre of the frame bar. The roof structure is raised by cables 15 one attached to each end of the roof and both passing over a pulley disposed in one upright and thence to a common winding drum 34 operated by worm or other gearing. The roof structure may be adjusted by vertical screw and nut gear. The uprights are provided with foot portions and stays 18 and the corners of the roof may be secured by guys 36 to cleats on the uprights. The roof is constructed of cross truss frames 10, 11 and the upper beam 12 is stiffened by a tensioning rod 13 which is screw adjusted. The ends of the roof are covered in by slots 19 and the roof may be constructed of metal, wood or fabric stretched on a frame. Specification 14019/99 is referred to.
Patent GB-780750-A (GB)
Title: Slay for ribbon-making looms of the automatic shuttle-changing type
IPC: D03D35/00
Filed: 1954-10-12
Abstract: 780,750. Smallware looms; automatic shuttle changing, CHOUPIN G.M. V. J. Oct. 12, 1954 [Oct: 22, 1953], No. 29377/54. Class 142(2) Each section of a ribbon-making loom has a plurality of shuttle fronts, stored in a magazine and ejected one by one, as required by the machine, by means including a system of levers arranged in the general plane of the slay and controlled by a reciprocating rod, the shuttle fronts being secured, in turn, to a common shuttle base which runs permanently in the shuttle race. When the weft breaks or becomes exhausted, an electro-magnet 44 carried on an arm 42a of a bellcrank lever is energized by the action of one or other of switches 92, 93, 94 and its core 53 is projected to trap a lever 41, constantly oscillated by a reciprocating rod 3 (Fig. 7, not shown) between itself and a finger 45 on the arm; and a spring-urged lever 47 snaps into a circumferential groove on the core to lock it in position. The other arm 42b of the bellcrank bears a finger 54 engaging in a slot in a lever 43, in turn coupled at its outer end, by a pin 56, to a slide 35 carrying shuttle fronts. The next appropriate stroke of lever 41 will then depress the slide 35 until a screw 48 on the locking lever. 47 abuts against a member 64 (Fig. 7, not, shown), and is caused to release the core 53. If, due to faulty operation of the mechanism, the first spare shuttle front fails to press on the end 86a of a lever 86, a machine stopping switch 89 will not be opened and the machine will stop. In the modification of Figs. 8 and 10, a lever 68, linked to the shuttle front-carrying slide 35a, carries an electromagnet 69, the core of which may be projected to lie under one arm 77b of a bell crank lever constantly oscillated by a reciprocating rod 37a. A core-locking lever 73 is pivoted at 72a on the lever 68 and its free end is connected with the slide 35a by a cable 74 passing over the top of a stationary member 33a so that, as the lever 68 is rocked counter-clockwise and the slide 35a descends, the lever 73 is withdrawn from the locking position. As the bellcrank lever rocks clockwise, its arm 77b engages under a flange on the lever 68, to return the slide 35a to its upper position.
Patent GB-1196495-A (GB)
Title: Improvements in or relating to the Dissolution of Nickel Coatings
IPC: B02C15/02
Filed: 1968-06-20
Abstract: 1,196,495. Recovering metals. MACDERMID Inc. June 20, 1968 [Aug. 2, 1967], No. 29414/68. Heading C7D. Unwanted nickel deposits are stripped from articles by immersion in a solution comprising nitric acid, a source of chloride ion in concentrations of 0À01 - 1À0 moles per litre and a source of iodate ion, the latter in a concentration sufficient to accelerate the stripping rate and to suppress the evolution of nitrogenous gases. Preferably the ratio of iodate ion concentration to chloride ion concentration is about 1 to 10.
Patent GB-280363-A (GB)
Title: Improvements in and relating to centrifugal machines
IPC: B04B3/08
Filed: 1926-11-22
Abstract: 280,363. Greaves, H. J. Nov. 22, 1926. Strainer separators.-A separator for removing water from granular materials has conveyers G<1>, G<2> on to which are fed the materials through the ports F', F<2> in the chamber E. The conveyers are constructed of suitable straining material arranged as an endless band on end drums H<1> - - H4 with their axes parallel to the axis about which the whole machine rotates; the conveyers are driven by any suitable means. The dried solids are thrown out of the machine at the ends of the conveyers between the drums, and the liquid passes through the conveyer material to the collectors K<1>, K<2>. In the modification illustrated in Fig. 3, the straining medium M<1>, M<2> is fixed and the material is carried forward by scraper conveyers N<1>, N<2>. The Provisional Specification states that a number of conveyers of different diameters may be used in series.
Patent GB-682123-A (GB)
Title: Improvements in and relating to centrifugal pumps
Inventor: STERENBERG JAN
IPC: F04D9/02
Filed: 1950-12-01
Abstract: 682,123. Centrifugal pumps. NAAMLOOZE VENNOOTSCHAP MEPPELER MACHINEFABRIEK EN TECHNISCHE HANDEL MAATSCAPPIJ VOORHEEN. F. HUISMAN. Dec. 1, 1950, No. 29444/50. Class 110(i) A self-priming centrifugal pump comprises a shrouded impeller on a horizontal shaft, with a stationary wall on each side of the impeller, the space between each wall and the impeller communicating, at a smaller radius than that of the impeller periphery, with a passage which leads to a space at the bottom of the casing. In a twostage centrifugal pump, Fig. 1, the second stage impeller 13 revolves between stationary side walls 31, 41, and delivers by way of periphery spaced channels 28 which open into an annular passage 25 leading by way of a central opening 29 to the discharge 2. When the pump is started, water which has previously collected at the bottom of the casing 1 flows by way of passages 35, 34, 33 and 36 to the space between the wall 31 and the impeller 13 and by way of passages 45, 44 to the space 42. The water is flung outwardly by the rotation of the impeller 13, and seals the clearances between the impeller periphery and the adjacent casing parts. Stationary blades 37, 43 may be provided to retard the flow of the sealing water and thus increase the time available for priming. The first stage impeller 12 is housed in a casing 4 which, together with a cover 7, is bolted to the main casing 1. An insertion 15 contains the interstage flow passage 20. In the modification shown in Fig. 4, a discharge volute 24a extends through slightly more than 360 degrees, ending at 50, just past the discharge 2. The water leaving the volute 24a flows around the outside of the volute before reaching the discharge 2, so that the bottom 51 of the pump casing is kept filled.
Patent GB-1418551-A (GB)
Title: Apparatus for printing on wire
IPC: B41F17/10
Filed: 1973-06-21
Abstract: 1418551 Peristaltic pumps RIGGS & LOMBARD Inc 21 June 1973 29452/73 Heading F1F [Also in Division B6] Rotating shaft 90 carries two sets of rollers 96, 98, 102, which compress a looped flexible tube 82 against a block 86 and in consequence pump liquid in two stages through the tube. The block can be moved out of its operating position by a screw 106 as indicated in Fig. 8 by broken lines.