baber/WOPTO huggingface dataset:
Patent GB-159120-A (GB)
Title: Apparatus for applying adhesive to cartons and the like
IPC: B31B50/62
Filed: 1920-07-15
Abstract: 159,120. Wandrum, J. July 15, 1920. Coating-machines.-An apparatus for applying molten adhesive to the sealing-edges 4 of carbons 3 comprises a V-shaped ridge 2 upon which the carbon is straddled. guides 5 to keep the carbon erect, a bevelled roller 6 adapted to transfer adhesive from a trough 1 to the two edges of the carbon, guide-rollers 8 adapted to hold the sides of the carbon together while the edges are being coated, and guides 9 to prevent the coated edges from splaying. The trough 1 is provided with an electric heater 10.
Patent GB-647175-A (GB)
Title: Polymerization of ethylene
IPC: C08F10/02
Filed: 1948-08-13
Abstract: Ethylene is polymerized by heating with an organic peroxide catalyst at a temperature at least as high as the decomposition temperature of the catalyst in the presence of a saturated hydrocarbon diluent containing at least 3 carbon atoms and one of the metals magnesium, zinc, cadmium and mercury.  Specified hydrocarbons are n-paraffins, e.g. n-butane, isoparaffins, e.g. isopentane, cycloparaffins, e.g. cyclohexane, and alkyl p  cycloparaffins, e.g. methyl cyclohexane. Suitable catalysts are peracetic acid, diacetyl peroxide, toluic acid peroxide, oleic peroxide, benzoyl peroxide, tert.-butyl perbenzoate, ditert.-butyl peroxide, hexyl peroxide, tert.-butyl hydroperoxide and methyl cyclohexyl hydroperoxide.  The metallic promoters may be added in their elemental state, preferably finely divided, or in the form of a compound which decomposes under polymerizing conditions to the metal.  The process may be carried out in batch or, preferably, by a continuous method in which the ethylene, diluent, catalyst and promoter are continuously charged to a reaction vessel.  This may contain adsorbent material such as firebrick, alumina and dehydrated bauxite in which the catalyst is deposited.  Instead of charging all the materials together, the metal may be placed in the vessel and the other ingredients passed over it.  The fluidized type process may be used wherein the charge passes upwardly through adsorbent material, part of which is continuously removed and cooled.  The catalyst may be prepared in situ in the diluent by heating the hydrocarbon while bubbling through air, preferably in the presence of a trace of peroxide or an oxidation catalyst, e.g. manganese stearate.  A minor amount of olefinic hydrocarbon may in this case be added to the saturated hydrocarbon.  Polymerization temperatures are preferably not more than 150 DEG  C. higher than the decomposition temperature of the catalyst and pressures may range from 15-500 atmos.  The amount of metal is roughly equal to or more than the amount of catalyst, which is preferably 0.1-1.0 per cent, but may be as high as 15 per cent, by weight of the ethylene.
Patent GB-1509233-A (GB)
Title: Pcm telephone communication system
IPC: G10L19/04
Filed: 1975-05-20
Abstract: 1509233 Pulse code modulation systems TELETTRA-LABORATORI DI TELEFONIA ELETTRONICA E RADIO SpA 20 May 1975 [27 May 1974] 21437/75 Heading H3H In a multiplexed P.C.M. transmission system each coder COD and decoder has a plurality of different conversion characteristics, selected dynamically according to the envelope of a speech signal being transmitted and the number of bits allotted to each channel is varied in dependence on the volume state of all the channels. In Fig. 1, envelope detector ES and discriminator DISC form a 3-bit digital "volume" signal representing the volume of an analogue speech signal Si. Modulator M eliminates redundant volume signals, the remaining ones select one of 8 available coding characteristics (which may be linear or 13-segment logarithmic) of coder COD. The volume signals of all channels are fed to a central memory MG which sends out signals 9 to control the resolution of each coder (i.e. the number of bits per sample) in dependence on the volume state of all the channels. Memory MG may also control the muting level of each discriminator DISC. The coder outputs and the volume signals are time-division multiplexed for transmission, the coder outputs being sent more frequently than the volume signals. At the receiver, Fig. 2 (not shown), the characteristic of each decoder (DEC) is selected by the volume signal for that channel and the resolution of the decoders is selected by a central memory (MG) in accordance with the volume state of all the channels. Modifications: the input signal Si may be digital. Instead of an individual coder and decoder for each channel, a sub-set of channels may share a common coder and decoder.
Patent GB-874629-A (GB)
Title: Hot water unit
IPC: F04D13/06
Filed: 1959-06-23
Abstract: 874,629. Mounting electric motors. DUMKE, H. June 23, 1959 [June 24, 1958], No. 21480/59. Class 35. [Also in Group XXVI] A hot-water unit for extremely high temperatures, up to the critical point, comprises a rotary pump 1 mounted directly on an electric motor 2 without the use of a stuffing-box, water being branched off from the delivery side of the pump at the point of maximum pressure and passed via pipe 4 through a gap tube 3 which relieves the stator of pressure. Water in the bypass conduit 4 is allowed to cool to such an extent that the waste heat from the motor is sufficient to bring the water to the temperature of the main water cycle (e.g. 350‹ C.) when it reaches the suction side of the pump after passing through the gap tube and bearings 9, 10, 11. The stator housing 18 may be of thin material as it is not subjected to any pressure. Corrugated extension 14 permits longitudinal expansion of the gap tube. The pressure of the water returning to the pump may relieve the thrust bearing 11 of pressure.
Patent GB-614517-A (GB)
Title: Improvements in or relating to closure members for devices for sealing the ends of electric cables
IPC: H01R4/58
Filed: 1946-07-18
Abstract: 614,517. Cable sleeves. PYROTENAX, Ltd., and CLOTHIER, G. D. July 18, 1946, No. 21520. [Class 36] A device for sealing the end of a cable comprises a plug or cap D of flexible insulating material having one or more integral tubular sleeves D<1> for accommodating the stripped cores B<1>. The plug D may be in the form of a disc or cap fitting into or over the end of a sealing pot A which is threaded at A<1> to screw on to the end of the cable sheath B, and may wholly or partially fill the space within the pot A. Any remaining space within the pot A may be filled with a plastic insulating material C.
Patent GB-241355-A (GB)
Title: Improvements in or relating to advertising devices
IPC: G09F7/22
Filed: 1924-09-12
Abstract: 241,355. Rees, H. P. P., (known as Rees, H. P.), and Lever Bros., Ltd. Sept. 12, 1924. Articles to be displayed, rotating and oscillating supports for; actuating. - In advertising devices of the type. comprising a pillar or base upon which is pivotally mounted a rod or other means bearing advertising matter, counterpoises g are carried bv arms f whose point of attachment e to the rod a is vertically adjustable in relation to the package or other advertising matter j. Stiffeners h keep the arms f apart. The device may be oscillated or rotated by air currents, produced by fans &c. or by a lamp &c. arranged with the package j, the convection current acting on vanes on the package. The lamp may be lit by electricity conducted through the pivot bearing c and through a wire dragged along a metallic race.
Patent GB-783730-A (GB)
Title: Improvements in colour photographic processes and materials
IPC: G03C7/333
Filed: 1955-07-27
Abstract: Azo dyes used as elimination couplers in colour photographic masking procedure are represented by the formul  <FORM:0783730/IV (b)/1> <FORM:0783730/IV (b)/2> especially where R1, R2, R3 and R4 are alkyl or acyl groups containing solubilizing groups such as sulphuric or carboxylic groups, and where R2 represents a group for rendering the coupler non-diffusing in the photographic layer; thus in formula I, R3 may be phenyl or sulphophenyl, R4 methyl, sulphobenzamido or carboxybenzamido, and R2 laurylphenyl, oxyoctadecyl, oxydodecyl or butylphenoxyphenyl.  In formula II R1 may be sulphobenzamidoethyl, dicarboxyphenyl, disulphobenzamido, sulphobenzamido, sulphophenyl, carboxybenzamidoethyl, carboxyphenyl, dicarboxyphenoxyacetamidoethyl, carboxyphenylsulphonamidoethyl, carboxyethyl or carboxychlorophenyl; and R2 dodecyloxycarbonylphenyl, amyloxycarbonylnaphthyl, dodecyloxycarbonylnaphthyl, diamylphenoxyethoxycarbonylphenyl and the corresponding naphthyl, dodecyloxycarbonylnaphthyl, ethoxyethoxyethoxyethoxycarbonylnaphthyl, ethoxyethoxyethoxycarbonylnaphthyl, dodecyloxyphenyl or palmitylamidonaphthyl.  For the styryl dyes, which are not further described, the <FORM:0783730/IV (b)/3> group of formula I is replaced by <FORM:0783730/IV (b)/4> where R5 is an arylene group and R2 is the group described above.  Specifications 545,448, 553,196, 553,229, 553,230, 599,377, 617,247, 649,660, 680,488 and 755,655, [all in Group XX], are referred to.ALSO:For azo dyes, used as elimination couplers in colour photographic washing procedure, of structure <FORM:0783730/IV (a)/1> in which R1 is a solubilizing and R2 a non-diffusing group the preparations of intermediates are: (1) phenyl-1-hydroxy-2-naphthoate is reacted with ethylene diamine to produce 1 - hydroxy - 2 - naphthylamidoethylamine and the latter is reacted with phthalic anhydride to produce the corresponding orthocarboxy carbonamide or with (2) the metacarbonyl chloride of benzene sulphonyl chloride or with (3) 1-carbonyl chloride benzene 3.5-disulphonyl chloride with subsequent hydrolysis to produce the corresponding meta and 3.5-sulpho carbonamides respectively; (4) 3-amino-2-naphthoic acid is reacted with (a) n-amyl alcohol, (b) n-dodecyl alcohol, (c) 2,4-diamyl-b -hydroxyethoxybenzene; or (d) 2-amino-benzoic acid is reacted with n-amyl alcohol in presence of dry hydrogen chloride in each case to produce the corresponding aminoesters, and such are diazotized and coupled with the naphthol intermediates of preparations 1-3.  Specifications 545,448, 553,196, 553,229, 553,230, 599,377, 617,247, [all in Group XX], 649,660, 680,488, and 755,655, [Group XX], are referred to.
Patent GB-531568-A (GB)
Title: Improvements in and relating to indicating comparators
IPC: G01B11/12
Filed: 1939-07-26
Abstract: 531,568. Linear-dimension gauges. POLLARD, A. F. C. July 26, 1939, No. 21700. [Class 106 (ii)] A measuring head for a comparator comprises a body, a glass optical flat, and a rolling ball or its equivalent so arranged as to cause interference fringes with monochromatic light the number of which fringes changes with change of dimension. A short length 1 of rectangularsection bar has formed at one end a plane 2 sloping at a specified angle to the upper surface 3 of the bar, the " meet " being perpendicular to the length of the bar. The " reference plane " 3 and the plane 2 are lapped to an optical flat finish. A glass optical flat 4 is placed on the plane 3 and overlaps it to form a V-space with the surface 2 in which is located an accurate ball of steel, quartz &c. the point of contact with the plate 4 being such that a " median line " perpendicular to the square edge of bar 1 will bisect that edge. When the ball contacting with surfaces 2, 4 is moved to tilt the plate 4 at a small angle to the " reference plane '' 3 equally spaced straight interference fringes;under monochromatic light will be formed between surfaces 3, 4 square to the " median line." The number of fringes is a measure of the small angle and any movement of the ball will change the angle and the number of fringes. The centre of the ball is kept in the median plane by guide plates. In a modified form two pieces of steel 1, 2 Fig. 3a, 3b are formed with sloping lapped surfaces 4, 5 and secured together so that the ball 15 rolls along a V-groove. A stirrup 16 prevents the ball falling out when the apparatus is not in use. The blocks 1, 2 may be fixed to the bottom of a channel piece 6 between two co-planar optical plates 7, 7<SP>1</SP> corresponding to frame 3. They may be fixed by screws but preferably are fixed kinematically so that the slope of the V-groove may be delicately adjusted To this end the lower contingent edges of blocks 1, 2 are bevelled to form a V-groove where they abut and a screw 11 pulls the blocks down upon the ends of three adjusting screws 8, 10 tapped into the part 6. The screw 8 contacts with the end of the groove and screws 10 with holes in the under surfaces of the blocks 1, 2. By turning the screw 8 the axis of the V-groove may be tilted. A single block with a sloping surface may be fixed to the channel 6, the sides of the channel serving to " centre " the ball. A part ball may be fixed to the end of block 1 by a flat spring so that the centre moves along a line perpendicular to the spring and inclined to the reference plane at the required angle. The apparatus is shown as applied to an inside gauge having a fixed anvil 6 which may be screwed into the block. For other than vertical holes the optical flat is held in place by spring means.
Patent GB-433091-A (GB)
Title: Improvements in combing machines
IPC: D01G19/30
Filed: 1934-07-25
Abstract: 433,091. Combing-machines. PRESTON STREET COMBING CO., Ltd., and WILKINSON, S., Preston Street, Bradford, Yorkshire. July 25, 1934, No. 21712. [Class 120 (i)] The combing - cylinder of a Heilmann or Schlumberger combing-machine is heated by steam or electricity. A steam chest or heating space a, Figs. 2 and 3, is provided in the cylinder A which is mounted on hollow trunnions B with an inlet band outlet b<1>. For electric heating an electric resistance is fitted into the space a and current supplied through annular terminals within the end bearings. A deburring blade H controlled by springs h may be provided.
Patent GB-1522090-A (GB)
Title: Method of roof edging and structures therefor
IPC: E04D13/158
Filed: 1976-05-26
Abstract: 1522090 Edging strip for a tiled roof MONIER COLOURTILE PTY Ltd 26 May 1976 21786/76 Heading E1B An edging strip 1 for the gable ends of a tiled roof includes in use a vertical face plate 12; an upwardly facing rectangular channel 21 formed between a lower part of the face plate and a vertical flange 13 behind it; upper and lower flanges 16, 14 which pass over and under the edge of the tiles; a series of spaced attachment clips 3, each having a horizontal arm 31 which passes between the lower flange 14 and the tiles and engages the inner faces of the face plate 12 and the upper flange 16; and fastening means for securing the horizontal arm 31 to a tiling batten. The clips have channels 33 which fit within the channel 21 on the edging strip. When edging strips are butted end to end a cover strip 2 is used. An angularly adjustable apex cover strip, Fig. 4 (not shown), and a stop end cover, Fig. 5 (not shown) are described. A prefabricated large board moulding 4 may be mounted beneath the edging strips.
Patent GB-258571-A (GB)
Title: Process for the manufacture of fine organzines and crepe fabrics in artificial silk
Filed: 1926-09-04
Abstract: 258,571. Delpech, J. Sept. 17, 1925, [Convention date]. Yarns and threads; spinning processes.-Nitrocellulose artificial silk yarn in the nitrated state is subjected to torsion, is then doubled and twisted to a greater extent in the opposite direction. The yarn may then be denitrated and bleached and submitted to the great twisting required for the manufacture of crape goods, or the nitrated organzine may be given further torsion and used as right and left hand twisted wefts in weaving, the woven fabric being submitted to denitration, bleaching and dyeing.
Patent GB-269473-A (GB)
Title: Stand for displaying goods
IPC: A47F5/11
Filed: 1926-09-04
Abstract: 269,473. Weiersm³ller, K., and Weiersm³ller, E., (trading as Weiersm³ller, C. [Firm of]). April 19, 1926, [Convention date]. Card and like stands.-A stand for displaying goods is formed from a cardboard blank scored along lines a, a and bent to form a hollow stand, the meeting edges being provided with interengaging tongues o and slots m. A portion of the card is cut out to provide edges h, i, which form a support for the article to be displayed, and slots r, in which a shaped card q can be inserted. The card q is stamped from the cut-out portion of the blank.
Patent GB-229954-A (GB)
Title: Improvements in and relating to fasteners for buttons, badges or the like
IPC: A44C3/00
Filed: 1924-09-16
Abstract: 229,954. Lee, H. A. Sept. 16, 1924. Pins for cottering.-A fastening device adapted to be passed through the eye or eyes of a button, badge, or the like to hold the same in place is made from a piece of resilient wire, one end 4 being doubled over to form a spring arm 5 which terminates in a hook 6, the beak portion 7 of which is bevelled and bears against the part 3. The bevel 7 facilitates the introduction of the eye of the button &c. into the hook retaining portion 6. Fig. 1 shows one form of button fastener and Fig. 7 shows a badge fastener in which the wire is coiled at the bend 25.
Patent GB-673609-A (GB)
Title: Improvements in or relating to industrial resistance thermometers
IPC: G01K1/08
Filed: 1950-09-05
Abstract: 673,609. Electric resistances. FOXBORO CO. Sept. 5,1950 [Sept. 9, 1949], No. 21868/50. Class 37. [Also in Group XXXVIII] A resistance thermometer 2, Fig. 1, is mounted within a casing 1 extending into the space whose temperature is to be measured, the casing 1 having a readily detachable continuation 4 so as to be adapted to resistance thermometers of different length. The resistance thermometer consists of a winding 25, Fig. III, on a silver bobbin 18 which is curved at its foot 19 to make good contact with the case; this may be further achieved by a local packing of tin foil; this is the only contact between the resistance bobbin and the case. The wire of the winding 25 is insulated with fibre glass impregnated with silicone varnish, the leads being bent on their passage through a ceramic block 26 to avoid strain. The winding 25 is bound with a winding of glass cord 31 impregnated and filled in with silicone varnish, and the whole is enclosed in a thin tube 34 of low heat conducting material. An extension tube 7 is provided and this is subjected to spring pressure at 13, Fig. 1, to maintain the bobbin in contact with the case 1.
Patent GB-1271381-A (GB)
Title: Static split-phase inverter
Inventor: HICKLING COLIN D
IPC: H02M7/538
Filed: 1969-04-29
Abstract: 1,271,381. Static inverters. GARRETT CORP. 29 April, 1969 [29 April, 1968], No. 21873/69. Heading H2F. A D.C./A.C. inverter under the control of a reference alternating voltage waveform (sinusoidal) from an oscillator 30 (Fig. 3) produces a synthesized output waveform (sinusoidal) (Fig. 2) corresponding to the control waveform, and comprises an output transformer 32 the primary of which has a plurality of winding segments 33A to 33F and taps each connected to a respective power transistor 34, 36, 38 which transistors are sequentially switched on to vary the effective turns ratio of the transformer in accordance with the instantaneous amplitude of the control waveform. In addition the conductivity of the power transistors is continuously varied by the control waveform whereby current through the winding segments follows the control waveform. Operation.-The transformer 32 has an earthed centre tap and the left hand side of the circuit diagram operates during the positive half cycles of the oscillator output to energize the left hand side of the transformer primary, while the left hand side of the circuit diagram operates likewise during negative half cycles. The power transistors 34, 36, 38 are driven respectively by transistors 35, 37, 39 which are D.C. biased by a common resistor 41 and respective resistors 42, 44, 46 and are coupled to the oscillator 40 via diodes 51, 53, 55 respectively. The base currents of the drivers are supplied by the D.C. source 30 although the amplitude of their base currents is controlled by the oscillator voltage applied to diodes 51, 53, 55. The drivers have different values of bias resistors so that when a positive going oscillator voltage is applied the driver 35 conducts first, turning on transistor 34. Current from source 30 flows through winding segments 33A-33F and the voltage V1 across these continues to increase as the conductivity of transistor 34 follows the control waveform of the oscillator until transistor 34 saturates. As the base voltage of driver 37 increases it eventually conducts and turns on transistor 36 so that 34, 35 are cut off, the base of 35 for example being clamped via diode 57 to the decreasing potential at the lower end of winding segment 33F. In turn, driver 39 switches on transistor 38 and so on. As the oscillator waveform decreases in amplitude the primary current is carried successively by transistors 38 then 36 then 34 and eventually goes to zero, whereupon the right hand side transistors take over to produce the negative half wave. Series diodes 61, 62, 63, 64 are used to protect the respective transistors from excess reverse voltage. Capacitor 65 by a boot-strapping action maintains the base voltage of the driver transistors close to the emitter voltage of the power transistors and serves to reduce the oscillator loading.
Patent GB-1084023-A (GB)
Title: Improvements relating to regulating arrangements
Inventor: FRYERS ALBERT JAMES
IPC: H04M1/76
Filed: 1965-05-24
Abstract: 1,084,023. Automatic volume control; telephone sets. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 23, 1966 [May 24, 1965], No. 21893/65. Headings H4K and H4R. In a telephone set having a transistor amplifier for the outgoing signals the gain of the amplifier is controlled according to the line current in order to compensate for the attenuation of the line to which the set is connected, and the gain controlling circuit is arranged to maintain the impedance presented by the set to the line substantially constant. In Fig. 1 the line current flows through the non-linear resistor NLR which has a positive resistance coefficient and so provides gain control of the microphone amplifier transistor TR2 by variation of the current negative feedback of this transistor. The current feedback tends to lower the output impedance of this stage, and so voltage negative feedback is provided by the varistor V1, which has a negative resistance coefficient, the voltage feedback tending to increase the output impedance of the amplifier, so that the overall effect of the two feedback paths is to maintain the output impedance substantially constant, while both feedback paths co-operate in increasing the gain of the amplifier with fall in line current so providing compensation for the attenuation of the line to which the set is connected. In a modification, Fig. 2 (not shown), the impedance presented by the set to the line is lowered by increasing the current flow through TR2 by reducing the base bias resistor (R4 and R5), the resistor being split into two parts and decoupled for A.C. to prevent voltage feedback over this path. This arrangement provides greater control of gain by NLR and so the varistor V1 (Via) is not connected to the emitter of TR1 but directly across the line terminals to provide impedance compensation.
Patent GB-576411-A (GB)
Title: Improvements in electric cables
IPC: H01B9/06
Filed: 1944-11-08
Abstract: 576,411. Electric cables. BRITISH INSULATED CABLES, Ltd., MILLER, J. L., CONNING, J., and CARSTEN, H. R. F. Nov. 8, 1944, No. 21976. Drawings to Specification. [Class 36] In an electric cable, a conductor is surrounded by layers of synthetic plastic dielectric material, such as polyethylene or polyvinyl chloride mixed with polyisobutylene, containing finely divided insulating material of high permittivity, such as high purity rutile, barium titanate, strontium titanate, beryllium titanate, calcium titanate singly or in combination. By varying the proportions of dispersed material, a considerable range of values of permittivity is obtained, and by this means permittivity grading is effected. The interstices of the cable are filled with nitrogen at a pressure of fourteen atmospheres, and the whole is enclosed in a reinforced sheath of lead or lead alloy.