baber/WOPTO huggingface dataset:
Patent GB-913067-A (GB)
Title: Improvements in or relating to boiler furnaces
IPC: F24B13/00
Filed: 1961-06-28
Abstract: 913,067. Stove hoppers; reciprocable grates. DUPUY, P. M. June 28, 1961 [Sept. 29, 1960], No. 23430/61. Class 126. [Also in Group XII] A boiler furnace comprises a chamber 1 enlarged at the top to form a hopper, and open at the bottom, with a horizontally reciprocable imperforate plate 5 spaced from the bottom, supporting fuel in the chamber, which is started by a motor 9 controlled by a pyrometer 12, with a temperature sensitive device 13 in the hottest zone of the furnace. The boiler furnace shown has a water-jacketed upwardly tapering combustion chamber 1 with a deep bed of fuel, e.g. fine briquetted coal, on an imperforate grate 5. Primary air is drawn through gaps 8, 8<SP>1</SP> between the grate and the bottom of chamber 1 by suction created in the exhaust flue (not shown). Secondary air supplied through a duct 20 completes the combustion of gases leaving the combustion zone 15. The water-jacket 21 may be connected to a hot-water circulation system which may be the boiler circulation system.
Patent GB-1262375-A (GB)
Title: New basic mono- and dis-azo dyestuffs and processes for their manufacture and use
IPC: C09B44/08
Filed: 1969-05-08
Abstract: 1,262,375. Basic azo dyes. CIBA-GEIGY A.G. 8 May, 1969 [13 May, 1968], No. 23559/69. Heading C4P. The invention comprises basic mono- and disazo dyes, free from acidic water-solubilizing groups, of formula wherein Y is an aliphatic chain which may be interrupted by a hetero atom, A is a primary or secondary amino group, B is H, alkyl, alkoxy or aryl, Z is an amino, hydrazino or etherified hydroxylamino group in which groups the O and N atoms may be members of a heterocyclic ring and which groups may also be quaternized, and D 1  is the residue of a diazo component which may contain a further azo group. The dyes are prepared by (a) condensing an azo dye of the above formula, but wherein Y carries a group capable of reaction with an amine &c., with an amine, hydrazine or etherified hydroxylamine; (b) azo coupling using appropriate components; (c) quaternization of appropriate azo dyes and (d) oxidative coupling using a hydrazone D 1 =N.NH 2  and an appropriate 5-aminopyrazole to give the dyes having an N atom in D adjacent to the ring C atom to which the -N=N- group is linked. The dyes may be used to colour synthetic, in particular polyacrylonitrile, fibres in yellow, orange and red shades.
Patent GB-444178-A (GB)
Title: Improvements in or relating to thermionic valve arrangements
IPC: H03G5/26
Filed: 1934-08-15
Abstract: 444,178. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and RUST, N. M., 109, London Road, Chelinsford. Aug. 15, 1934, No. 23595. [Class 40 (v)] In a cascade carrier frequency amplifier gain and selectivity are controlled by the use of reaction obtained by the provision of a circuit L4, C4 resonant to the carrier frequency in the common cathode lead of a pair of valves 1, 2. Reaction may be controlled by shunting the tuned circuit with a variable resistance or by controlling the grid bias of the earlier valve either manually or in dependence on signal strength. The grid of the second valve may be anchored to the cathode or to earth by resistance 18. The amplifier is preferably the intermediate frequency amplifier in a superheterodyne receiver.
Patent GB-1024379-A (GB)
Title: Improvements in or relating to pipe clips
Inventor: MARSH GEOFFREY JOHN WALTER
IPC: F16L3/10
Filed: 1963-06-13
Abstract: 1,024,379. Pipe brackets. MARLEY TILE CO. Ltd. May 20, 1964 [June 13, 1963], No. 23622/63. Heading A4B. A pipe bracket 1 consists of a U-shaped member 2 and a saddle-shaped member 3 each of polyvinyl chloride or strip metal coated therewith, the member 2 having a hook 10 which engages in a slot 6 in member 3 and the other end of the member 2 being securable to member 3 by a bolt 12 passing through a hole 11 in member 2 and another slot 6 in member 3 to engage a nut 13.
Patent GB-964834-A (GB)
Title: Improvements in and relating to steam turbine water extraction arrangements
Inventor: COATS ROBERT
IPC: F01D25/32
Filed: 1962-06-20
Abstract: 964,834. Steam turbines. PAMETRADA. Jan. 4, 1963 [June 20, 1962], No. 23691/62. Heading F1T. A steam turbine comprises a rotary barrier mounted on the rotor downstream of and coaxially with a stage of blading, the periphery of the barrier extending at least in part beyond the peripheral diameter of the preceding blading, the barrier being arranged so as to deflect the steam and water mixture emerging from the preceding stage of blading generally radially outwardly, water collecting means provided for collecting water flung from the periphery of the barrier by centrifugal force. In a first embodiment, Fig. 1, the barrier 1 is in the form of a disc forming an integral part of the turbine rotor 2. Water droplets are flung from the periphery of the disc into the annular water collecting channel 4, the entry to the channel being defined by annular members 7, 8 which are shaped with lips to assist retention of water in the channel. In Figs. 2 and 2a the periphery of the disc 11 is formed with semi-circular scallops 13, the scallops lying radially outwardly of the outer periphery of the preceding row of rotor blades. The entry to the annular water collecting channel is defined by members 16, 20. An auxiliary water collecting channel 19 is defined by the member 20, this channel serving to collect water flung from the shroud ring of the rotor blades 14. The scallops 13 are formed with a raised edge 18, and the disc is provided with radial grooves 17 to guide the water droplets. In Figs. 3 and 3a the disc 21 is formed with circular apertures 23 towards the periphery, ring members 24 being secured within the apertures. The ring members 24 may be formed with rims which define gutters at the upstream face of the disc. In Figs. 4, 4a, 4b the barrier is formed of segmental pieces 31 which are secured to the periphery of the rotor 32 in a similar manner to the blades 14. The segmental pieces are of generally I-section form, (see Fig. 4b) and together define inlet apertures 33 at the upstream face, and outlet apertures 34 towards the outer periphery at the downstream face.
Patent GB-851627-A (GB)
Title: Improvements in and relating to joint-making packings
Inventor: BASTOW FRANK
IPC: F16J15/02
Filed: 1958-07-23
Abstract: 851,627. Joint-making packing. DOWTY SEALS Ltd. July 22, 1959 [July 23, 1958], No. 23727/58. Class 122 (3). Joint-making packing comprises a gasket ring 10 having in at least one face a channel 11 containing a rubber &c. ring 14 which, in crosssection, is coextensive with at least one wall 16 of the channel and inclined axially outwardly therefrom to a sealing lip 17 and has a groove 19 having a volume behind the face of the ring 10 greater than the volume of unstressed rubber projecting from it whereby, when the packing is in use, the sealing edge may be deformed by a joint face 20 into the plane of the gasket ring face, as shown in the lower part of Fig. 1. Pressure fluid in the cavity 21 urges the sealing lip against the joint face 20. Channels 11 on each side of the ring 10 are separated by a web 12 having circumferentially-spaced holes 13 and the ring 14 is moulded into each channel and interconnected through the holes 13. In a modification, Fig. 2 (not shown), sealing edges are provided on both sides of the groove 19. The ring 10 may be of metal or of elastomeric material substantially harder than the material of ring 14.
Patent GB-649673-A (GB)
Title: Glove form
IPC: D06F59/04
Filed: 1948-09-09
Abstract: 649,673. Drying gloves. DEHN, F. B. (Glov-Tree Corporation). Sept. 9, 1948, No. 23757. [Class 34(i)] A glove form to retain the shape of a glove during washing and drying operation comprises a hollow shell 2 having hollow digit members 3, 4, 5, 6 and a hollow thumb member 7, the shell being generally rectangular in configuration. Spaced apertures 12 and 13 (not shown) are provided in opposite sides of the shell and slots 14 and 15 (not shown) are provided in opposite sides of the thumb member 7. The digit members have slots 16 and drain apertures 18 are provided in the tips of the digits members, a hook 22 being formed integral with the shell at the wrist end to provide suspension means. Adjacent this hook is an aperture 23 to allow water to enter the hollow interior of the form. It is stated that the form is preferably constructed by moulding a water resistant plastic substance.
Patent GB-233968-A (GB)
Title: Improvements in electric radiant heaters
IPC: F24C7/06
Filed: 1924-10-08
Abstract: 233,968. Hecla Electrics Proprietary, Ltd., and Marriott, C. W. Oct. 8, 1924. W i r e resistances, cored. - A heating unit consisting of a resistance wire 31 wound on a hollow refractory core 2 is adapted to be connected to and supported from a radiator or the like solely by means of a screw 17 located at the open end of the core, the screw being in electrical contact with a plate 9 connected to one end of the resistance but insulated from a plate 11 connected to the other end of the resistance, both plates being arranged at the open end of the core. Each of the plates 9, 11, has four tongues 13, 26, respectively, two opposite tongues in each case engaging shoulders 14 or slots 27. The plates are bolted together by means of the screw 17 and nut 28, the head of the screw being welded or brazed to the plate 9. One end of the resistance wire is connected to the screw 17 by means of metal washers 34 and the other end is connected to a lug 33 on the plate 11 by a screw 32. Insulating washers 29 prevent the screw 17 from contacting with the plate 11. In Fig. 10 the unit is shown mounted in a porcelain socket 37 attached to a reflector 38 and provided by the screwed metal bush 36 engaged by the screw 17. One supply lead 42 is connected to the bush and the other 41 to a screw which makes contact with a member 39 which itself makes contact, with the ring-shaped part 23 of the plate 11. In a modification the plate 9 is replaced by a short metal strip to which one end of the resistance is secured by a screw, and the tongues of the plate 11 embrace the outer edge of a rim formed on the core 2. In Fig. 9 the core 2 has a transverse web 46 to which a metal strip 44 and a contact plate 48 are secured by a screw 17, nut 28 and insulating washers 29. Specification 187,755 is referred to.
Patent GB-401076-A (GB)
Title: Improvements in inner-soles or socks for footwear
IPC: A43B17/18
Filed: 1932-08-25
Abstract: 401,076. Socks for boots &c. MACKNESS, H. T. and MACKNESS, H. W., Beech Road, Rushden, Northamptonshire. Aug. 25, 1932, No. 23802. [Class 17 (ii).] The adhesive coated face of a sock by which it is secured in position in a boot is protected by a covering sheet of material such as air-proof paper which is stripped off when the sock is required to be placed in position. A single protective sheet d of paper may form a common covering to the adhesive coated faces c of a pair of socks a, b.
Patent GB-720439-A (GB)
Title: Improvements in tabs for insertion in the printing plates for address printing machines
IPC: B41L47/02
Filed: 1952-09-23
Abstract: 720,439. Printing plate tabs. ADREMA MASCHINENBAU GES. Sept. 23, 1952 [Oct. 5, 1951], No. 23807/52. Class 16. [Also in Group XVI] A flat tab 1 for insertion in address printing plates is provided with projections spring protruded towards both sides of the tab, the projection being provided by a spring tongue or tongues formed in the foot or feet 2 of the tab within an aperture 4 in the foot or feet. As shown in Figs. 1 and 1a the tongue 5 is provided with a wider top portion bent obliquely to the plane of the tab so that the opposite edges 5<SP>1</SP>, 511 project on opposite sides of the tab. As shown in Fig. 2 the spring projections are formed by splitting a single tongue portion into two parts 7, 71. The tab may also be constructed (Fig. 3a) of two limb portions united at the head end 1 and folded together the foot portion 2 of each limb being provided with spring tongues 8, 8<SP>1</SP>. In a further embodiment the tab may be provided with two foot portions 2 each having a single spring protruded tongue, Fig. 4 (not shown. )
Patent GB-633906-A (GB)
Title: Improvements in or relating to a method of and apparatus for expanding tubes in tube seats
IPC: B21D39/14
Filed: 1947-08-28
Abstract: 633,906. Tube expanders. BABCOCK & WILCOX, Ltd., and CARLSON, W. B. Aug. 28, 1947, No. 23858. [Class 83 (iv)] In a power-driven tube-expander, the increase in the mandrel driving-power, required when the clearance between the tube 1 and the tube seat 2 is taken up and the seat offers additional resistance, is detected, and initiates means restricting further axial movement of the mandrel to a predetermined distance. A mandrel 3, driven by an electric motor 6 fed through a switch unit 8 is controlled by start, stop, and reverse buttons 19, 20, 21. The electric supply is measured in a wattmeter 9 having an adjustable contact 32 engaged by a pointer 30 to initiate the further mandrel movement control means when the power taken suddenly increases. A delay prevents premature operation by tube defects, scale, &c. A synchronous generator 12 on the motor shaft drives, through a magnetic clutch a motor 14 operating a pointer 39 set against spring bias, when the clutch is free, to adjust the mandrel movement directly, or in selffeeding types the revolutions. The pointer 39 engages a contact 44 to stop or reverse the mandrel drive according to the setting of a switch 15 in a relay unit 16. Operation. Pressing the button 19 rotates the mandrel 3 to expand the tube end 1, and when the tube 1 nips the seat 2 the power increases and wattmeter pointer 30 engages contact 32 to energize the magnetic clutch through relays. The pointer 39 then moves in proportion to the mandrel revolutions or axial travel, until it engages the contact 44 to stop or reverse the drive. The stopped machine is reversed by the button 21 and stopped at any time by the button 20. In a modification, Fig. 4 (not shown), the axial travel of the mandrel 3 is measured directly by an arm engaging the mandrel shaft and operating the generator 12.
Patent GB-1471938-A (GB)
Title: Discharge switching device
IPC: H01T2/02
Filed: 1974-05-29
Abstract: 1471938 Spark gaps NISSIN ELECTRIC CO Ltd 29 May 1974 [9 June 1973] 23861/74 Heading H1D A crowbar switch comprises a start gap between electrodes 1 and 3 with a trigger electrode 5 therein, and a further gap between electrodes 1 and 2 with a trigger elctrode 4 therein, said gaps being positioned close to each other so that the photons and thermoelectro s induced by the arc produced by a discharge in said start gap ionize the ambient gas about said further gap for easier occurrence of a discharge in said further gap. Trigger electrode 4 can be adjusted in position by moving its support rod 35 axially. The switch is connected as shown to transfer energy from a capacitor A to a coil C and then short circuit the coil.
Patent GB-861302-A (GB)
Title: Improvements in the production of fibre-reinforced tubes
IPC: B29C33/34
Filed: 1957-07-29
Abstract: 861,302. Moulding fibre-reinforced synthetic resin tubes. HANUSCH, H. July 29, 1957 [Aug. 1, 1956; April 2, 1957], No. 23890/57. Class 87(2). [Also in Group XXVIII] Fibre-reinforced tubes are produced by spraying a mixture of cut fibres and synthetic resin on to a mandrel moving in a longitudinal direction. As shown in Fig. 1, a tubular mandrel 1 of expansible material, e.g. synthetic rubber, is held by guides 2, 3 and sprayed by three or four nozzles 6 which are periodically partially rotated around the mandrel. Setting of the sprayed mixture is effected by two-part heated pressing rools 7, 8, the rams of which are arranged at right angles and are movable both radially and longitudinally with respect to the mandrel. During spraying, the mandrel may be expanded by hydraulic or air pressure applied through a conduit 4 to facilitate removal of the finished tube. The mandrel may be made of or have a jacket of e.g. silicone rubber in order to obtain a smooth inner surfaced tube. The circular passage formed between the pressing rams may be cone shaped at the end nearest the spray nozzles in order to make smoother seams between successive stages of the tube. Fabric strands or bands may be applied before or after spraying either by plain wrapping or couble cross winding. In the example shown in Fig. 2 the mandrel 1 is simultaneously rotated and moved longitudinally by means of carriages 10, 11 which are spaced apart by a tubular frame 14, and run on rails 9. The resin and fibre mixture sprayed on the mandrel 1 by spray head 6 is polymerised in a heating chamber 20 and then smoothed by a draw nozzle 18 which is rotatable in a stationary holding ring 19. A fibre band reinforcement 21 coated with resin alone or a resin-fibre mixture by a spray head 22 is wound on, a further spray of resin applied by a nozzle 25 and then a cover foil band 24 applied. 23 is a setting chamber. A coating of, e.g. ethoxylin resin or silicone resin applied by a nozzle 30 and partly or completely set in a heated chamber 26, improves the imperviousness of the finished tube. This coating may be replaced by a foil sleeve applied to the mandrel before expansion of the mandrel, and then, preferably, given an adhesive coating. Removal of the tube from the mandrel may be facilitated by applying a vacuum to the interior of the mandrel. Alternatively a thin sleeve of polytetrafluoroethylene, cellulose acetate or hard P.V.C. may be applied to the mandrel and the finished tube separated from this sleeve by blowing air therebetween if necessary.
Patent GB-929737-A (GB)
Title: Improvements in or relating to n-phenethyl-2-phenylcyclopropylamine derivatives
Filed: 1961-07-03
Abstract: The invention comprises N-phenethyl-2-phenylcyclopropylamine derivatives of the general formula <FORM:0929737/IV(a)/1> (wherein R1 and R2 are phenyl, chlorophenyl, fluorophenyl, trifluoromethylphenyl, lower alkoxyphenyl, lower alkylphenyl, dichlorophenyl, di-lower alkylphenyl, di-lower alkoxyphenyl or methylenedioxyphenyl, R3 is hydrogen, lower alkyl or hydroxyethyl, and R4 is lower alkyl) and non-toxic, pharmaceutically acceptable, acid addition salts thereof, and their preparation by the processes of the examples which may be summarized by the following reaction scheme:-  <FORM:0929737/IV(a)/2> (wherein R3 is lower alkyl or hydroxyethyl), optionally followed by salt formation.  The "lower alkyl" and "lower alkoxy" groups are defined as those containing from 1 to 4 carbon atoms.  These compounds may be the cis- and transisomers and the resolved d-, l-, d1- and l1-isomers prepared by using the appropriate starting material, followed by resolution), or mixtures of cis-trans, dl- and d1l1-isomers.  The compounds are anorexigenic agents, anti-depressants, ataractics and monoamine oxidase inhibitors.  The cis-, trans- and cis-trans-2-phenylcyclopropylamine starting materials may be prepared by the following process: <FORM:0929737/IV(a)/3> The acid may be converted to the azide via the acid chloride. Alternatively, the acid may be converted to the amine via the methyl ester, hydrazide, azide and methyl urethane.  The separation of the cis- and transisomers may be effected at the ethyl ester or acid stage.  The benzyl alkyl ketone starting materials may be prepared by reacting the appropriate phenylacetic acid with an excess of the appropriate acid anhydride in the presence of a basic catalyst.  4-Trifluoromethylphenylacetic acid is prepared from 4-bromobenzotrifluoride via 4- trifluoromethylbenzaldehyde, 4- trifluoromethylbenzyl alcohol, 4-trifluoromethylbenzyl bromide and 4-trifluoromethylbenzyl cyanide.  d-cis, l-cis, d-trans- and l-trans-2-Phenylcyclopropylamine are prepared from dl-cis-and dl-trans-2-phenylcyclopropylamine via the tartrates.
Patent GB-889554-A (GB)
Title: Removal of radioactive ruthenium and cesium from gases
IPC: G21F9/02
Filed: 1959-07-13
Abstract: 889,554. Processing radioactive waste. ATOMIC ENERGY OF CANADA Ltd. July 13, 1959 [July 31, 1958], No. 24000/59. Drawings to Specification. Class 39(4) Radioactive ruthenium and/or caesium is removed from a gas by contacting the gas at 120‹-1350‹C. with (a) a metal oxide which will react with the ruthenium and/or with (b) a refractory silicate which will react with the caesium, in each case to form a thermally stable compound. Suitable oxides are those of iron, nickel, chromium, cobalt, and titanium and suitable silicates are calcium silicate and potassium, sodium, and calcium aluminosilicates. The gas is preferably led through a heated reactor containing the two reagents in two layers or mixed together. Alternatively the solid reagents may constitute an inner lining for a furnace through which the gas passes or a cap over a crucible from which the gas is given off. The process may be used to treat gas evolved on heating waste radioactive material mixed, for example, with nepheline, syenite, calcium oxide, and nitric acid.
Patent GB-1131383-A (GB)
Title: Improvements in or relating to looms
IPC: D03D47/00
Filed: 1967-05-24
Abstract: 1,131,383. Shuttleless looms; weft inserters. R. DEWAS. 24 May, 1967 [25 May, 1966], No. 24066/67. Heading DIE. To reduce friction the flexible tape 6 of a weft inserter is guided outside the shed by guides constituted, at least in part, by a dry solid lubricant, e.g. graphite or polytetrafluoroethylene. The tape is moved by a toothed wheel 22, engaging in central perforations in the tape, and passes through a straight guide 72 and an arcuate guide 9 which oscillate with the sley. Figures 2 to 9 (not shown) show various cross-sectional shapes of guides composed wholly or partly of the lubricant.
Patent GB-591667-A (GB)
Title: Improvements in or relating to impedance transformers for wave guides
IPC: H01P5/04
Filed: 1943-03-29
Abstract: 591,667. Wave guides. SPERRY GYROSCOPE CO., Inc. March 29, 1943, No. 24158/45. Convention date, March 31, 1942. Divided out of'591,625. [Classes 40 (iii) and 40 (v)] A wave-guide impedance transformer comprises a wave-guide section of predetermined length and of changed internal dimensions such that the characteristic impedance of the section is the geometric mean of the impedances seen from either end of the section. More than one such section may be provided and they may be joined up to produce a stepped formation. As shown in Fig. 2, the section of length # /4 is formed by metal inserts 42, 42<1>, which reduce the width of the guide 40 in the direction of the electric vector. They are placed at such position that their ends 43 are at a voltage node for the standing wave formed by reflection at the junction of the guide 40 with the slotted radiating terminal 39. The reduced width should bear the same ratio to the guide width as the voltage at the nodes bears to the voltage at the loops. The impedance match may be further improved by the use of further inserts 45, 45<1>. The inserts may be made adjustable in thickness and position by forming them as plungers sliding through the wall of a telescoping section of the guide (Fig. 4, not shown). When a stepped guide is employed, Fig. 14, the outer sections of impedance Z1, Z4 are joined by intermediate sections of impedance Z2, Z3, each of length #/4; and the logarithms of the impedance ratio at each step are related in accordance with the coefficients in the expansion of (1 +x)M where n is the number of intermediate sections. In this way the transformer is made effective over a band of frequencies. The transformer may comprise expanded instead of reduced guide sections, and their. lengths may be any odd multiple of #/4. Specification 519,766 (as open to inspection, under Sect. 91), is referred to.