baber/WOPTO huggingface dataset:
Patent GB-1273813-A (GB)
Title: Photographic apparatus
Inventor: ORT WOLFGANG
IPC: G03B9/34
Filed: 1969-05-14
Abstract: 1,273,813. Photographic shutters. EASTMAN KODAK CO. May 14, 1969 [May 14, 1968], No.24472/69. Heading G2A. A photographic camera has a planar exposure area 60, Fig. 1, and a film receiving chamber 20 adjacent each lateral end of the exposure area and a focal plane shutter having at least one shutter curtain 22, 24 supported by guides 16, 18 for a sliding movement laterally across the exposure area along a guide path that has an intermediate portion in front of the exposure area and two end portions curved about the film receiving chambers, the curtain being formed of a one-piece member of material capable of flexing to follow the guide path but being substantially rigid in a direction perpendicular thereto. Each curtain preferably has corrugations extending in a direction perpendicular to the direction of curtain movement, and the ends of each curtain are provided with guide pins, the curtain completely enclosing the pin, and the pins projecting beyond the top and bottom edges of the curtain to produce point contact with the grooves 16, 18. Each curtain is driven by 'L' shaped levers 34, 43 engaging apertures 1e and 2e provided near an edge of each curtain. The operating mechanism, Fig. 4, has spring driven transmission plates 58, 58<SP>1</SP> to which levers 34, 43 are attached, armature lever 92 and release pawl 100 engaging points 90, 124 of the transmission levers, a tensioning lever 70, cocking lever 76 having a cocking key 78, and a release lever 106. Operation of the release lever 106 frees the tensioning lever which pivots in a clockwise direction to disengage pawl 100 from transmission plate 58<SP>1</SP> and operate changeover switch 126 which commences operation of an electric integrating timing circuit. Transmission plate 58<SP>1</SP> moves curtain 24 into an exposure position, and the exposure is terminated by energization of solenoid 98 which attracts armature 92 to free transmission plate 58 which moves curtain 22 to cover the exposure aperture.
Patent GB-406711-A (GB)
Title: Improvements in or relating to a device for waxing yarns
IPC: B65H71/00
Filed: 1932-09-02
Abstract: 406,711. Waxing yarn. WILDT & CO., Ltd., COLEY, J., and LEEDHAM, L. H., Adelaide Works, Leicester. Sept. 2, 1932, No. 24562. [Class 120 (iii).] In a yarn waxing device of the type having a pair of waxing elements positively rotated by means other than the tractive force of the yarn there is provided a driving spindle, a driven spindle carrying the waxing elements, and a coupling element which constitutes part of a driving train between the two spindles and which is movable into or out of driving position, e.g. upon yarn breakage. End pressure is applied to the waxing elements by a pair of pivoted levers having their adjacent ends coupled together by a sliding interconnection to which a weight is applied. The wax blocks 14, 15 are mounted on an axle 12 and pressed together by links 31, 32, 34 and a weight 35 ; the axle is driven by gears 17, 24, 22 and pulley 23. The yarn 30 passes under the guide 28, between the waxing blocks, which are preferably rotated in a direction opposite to the travel of the yarn, then through guides 37 and 38. Should the yarn break, the adjustably weighted arm 127 drops and rotates the shaft 18 to which is also secured an arm 25 carrying the jockey pulley 24, whereby the drive is disconnected. Stops are arranged on an extension 26 of the arm 25 to limit its movements. The axle 12 carrying the wax blocks has a central grooved portion 13 of porcelain for guiding the yarn, and is detachably mounted in a cone pivot in a spring plunger 43, to facilitate renewal of the wax blocks.
Patent GB-1013931-A (GB)
Title: Process for the chlorination of benzotriazole
Inventor: CROUCH ALAN EDGAR
IPC: C07D249/18
Filed: 1961-07-07
Abstract: Chlorinated benzotriazoles are obtained by chlorinating benzotriazole or a partially chlorinated benzotriazole in solution in an organic acid. Chlorine may be used, or hydrogen chloride and hydrogen peroxide.  The acid may be a fatty acid such as acetic or propionic, a chlorinated fatty acid such as trichloroacetic acid, or a sulphonic acid.  In an example, benzotriazole in acetic acid is treated with chlorine to produce 4,5,6,7 - tetrachlorobenzotriazole. Specification 990,111 is referred to.
Patent GB-170455-A (GB)
Title: Improvements in or relating to tubular pocket glass cases for clinical thermometers and other articles
IPC: G01K1/08
Filed: 1920-08-25
Abstract: 170,455. McDonnell, A. J. V. Aug. 25, 1920. Putting-up instruments and appliances.-A pocket case for clinical thermometers, surgical sutures &c. comprises a glass container 1 closed at its lower end and enclosed in a longitudinally-split metal sheath 2 which closely grips the container and extends beyond the open end thereof. A closure 3 is adapted to be pushed into the projecting end of the sheath, and is held frictionally in position on the container body. In the form shown, the closure is hollow and forms a tightly-fitting butt joint with the body of the container. The sheath may be formed with viewing-slots 4.
Patent GB-1015721-A (GB)
Title: Fuel cell electrode
IPC: C04B35/532
Filed: 1962-06-27
Abstract: A porous matrix for a catalytic fuel cell electrode is made by preparing a mix of pulverized carbonaceous material comprising activated carbon powder having a specific surface of 800-1000 m2/g and a liquid binder, compressing the mix into a desired matrix shape at a pressure of 105-175 kg/cm.2 gauge, baking the compressed mix in a non-oxidizing atmosphere at 150-250 DEG  C. for 2-3 days, finally baking the mix by gradually and periodically increasing the temperature to 1000 DEG  C. and holding it at 1000 DEG  C. for at least one hour, and permitting the baked mix to cool at ambient temperature.  The liquid binder may be a residual hydrocarbon oil such as that obtained from high-temperature vacuum distillation of petroleum.  Porous baked carbon or graphite or a mixture thereof may be added to the mix. The non-oxidizing atmosphere may be derived from the vaporization of the lighter hydrocarbons in the residual hydrocarbon oil employed as the binder.  The porous matrix may be impregnated with catalytic materials, e.g. platinum or palladium, for use an anode or cathode of a fuel cell.
Patent GB-1133840-A (GB)
Title: A process for the production of hollow articles from anionic polymerisable lactams
Inventor: HECHELHAMMER WILHELM
IPC: B29C41/04
Filed: 1967-05-30
Abstract: 1,133,840. Hollow articles from polymerized lactams. FARBENFABRIKEN BAYER A.G. 30 May, 1967 [7 June, 1966], No. 24847/67. Heading B5A. Hollow articles are produced from anionic polymerizable lactams by introducing into a hollow mould an anhydrous melt containing (a) a lactam with 4 to 12 ring atoms or a mixture of such lactams, (b) a catalyst which is an alkali metal, an alkali metal salt of a lactam or an alkali metal or alkaline earth metal alcoholate, hydroxide or carbonate and (c) an activator which is an organic isocyanate, a masked isocyanate, a carbodiimide or a cyanamide, rotating the mould about two mutually perpendicular axes and heating the mould to 80-210‹ C. The mould is preferably rotated at 2 to 50 r.p.m. about each axis. The lactam may be #-caprolactam, pyrrolidone, caprylic lactam, oenanthic lactam or lauric lactam, the catalyst sodium or potassium carbonate or sodium methoxide and the activator hexamethylene diisocyanate, toluylene-2,4-diisocyanate, napthalene-1,5-diisocyanate, the addition products of hexamethylene diisocyanate and #-caprolactam or of toluylene diisocyanate and #-caprolactam, diethylcarbodiimide or polycarbodiimide. Glass fibres, pigments, dyes, stabilizers and fillers may also be added to the melt.
Patent GB-261155-A (GB)
Title: Improvements in wireless telephony and telegraphy
IPC: H01H19/58
Filed: 1925-10-06
Abstract: 261,155. Patterson, E. A. Oct. 6, 1925. Thermionic amplifiers and detectors. - A tuning-apparatus for wireless receivers comprises a coil connected in the anode circuit of a valve and a switch adapted to vary the amount of the coil in circuit, to substitute therefor a coupling- resistance, and to transfer the anode tuning- condenser from a position across the anode coil to a position between the anode of the succeeding valve and the grid of the first valve. The receiver thus functions with tuned-anode coupling for the shorter waves, and with resistance coupling for the longer waves, the anode tuning- condenser serving for controlling reaction in the latter case Fig. 1 shows the construction of the tuner, and Fig. 2 the circuits. The anode coil 13 is wound as a rectangular coil around four corner rods 25 spaced by bars 24 and attached to end plates 23, 26. The switch arms 8, 9, 10 are insulated from each other by washers, but are all carried by a bush 28 which is rotated by an external knob. The arm 8 is a single arm and is electrically connected at its inner end to the bush 28 and thence to the anode 6 of the first valve. while its outer end sweeps over contacts 14 connected to tappings on the anode coil 13. The other two arms 9, 10 are double arms moving over contact sectors 11, 12. While the arm 8 is moving over the studs 14 the other arms serve to connect the variable condenser 15 across the active part of the coil 13. When the arm 8 reaches the end contact 16, the anode 6 is connected to the coupling-resistance 19. At the same time the arms 9, 10 engage studs 17, 18, thus disconnecting the condenser 15 from the coil 13, and connecting it between the plate 22 of the next (detector) valve, and the grid 21 of the first valve. A coil 41 reacting on the coil 13 may be wound on a frame 40 attached to an inner spindle 27 which has an independent reaction control knob at its outer end. The coupling resistance 19 may be mounted on the end-plate 23; and a coverplate 38 may be used to protect the connections to the studs 14 and sectors 11, 12, which are secured to the end-plate 23. The Provisional Specification refers to a modified construction in which the coils 13, 41 are wound on coaxial cylinders, the reaction coil 41 being given an axial displacement when the inner spindle 27 is rotated. The inner spindle 27 carries a helicallygrooved drum which engages a pin on the axiallyguided former of the coil 41.
Patent GB-1349187-A (GB)
Title: Apparatus for and method of tool selection
IPC: G05B19/18
Filed: 1971-04-19
Abstract: 1349187 Tool changers EX-CELL-O CORP 19 April 1971 [20 March 1970] 24879/71 Heading B3B [Also in Division G3] A method of tool selection comprises placing a plurality of tools having code numbers sequentially in a tool load position 26 on a conveyer 12 having a plurality of tool positions 24 to thereby load the conveyer; setting the code numbers of the tools on identification switches operably associated with each of the tool positions on the conveyers; moving the conveyer to move the tool positions 24 sequentially through a tool pick-up position 30 and sequentially interrogating by means of a selector switch 26 driven synchronously with the conveyer the identification switches as the tool positions 24 pass the pick-up position 30; and stopping movement of the conveyer when the identification switch associated with a desired tool is interrogated. The switches comprise manually settable thumb wheel switches, e.g. (72) (Fig. 2, not shown) having digits set in a binary code. The switches, one for each tool position, are connected to contacts of a first rotary selector switch 36 so that each one is interrogated sequentially. A second rotary selector switch 38 illuminates lights, e.g. (124) in sequence to identify the switch to be set when a tool is placed in a tool position at the tool load position 26. The selector switches are driven in synchronism with the conveyer 12 at one revolution per revolution of the conveyer, and a motor control cam 136 is driven at one revolution per tool position movement of the conveyer. The drive motor 14 is initially slowed down before final positioning of a tool at pick-up position 30.
Patent GB-1467298-A (GB)
Title: Suture bridges
IPC: A61B17/04
Filed: 1974-06-05
Abstract: 1467298 Suture bridges BIO-MEDICUS Inc 5 June 1974 24885/74 Heading A5R A suture bridge 53 for use with a suture to close a wound, has end portions 52 for engaging the patient's skin, cantilever suture support members 56 projecting from the end portions 52 on the side opposite that intended to be placed against the skin, each end portion 52 having a slot 55 for passage of a suture to the respective support member 56 without touching the bridge. Each end portion may have several longitudinal projections, one projection being bent to form a support member 56, the others defining a slot 55. The bridge and the support members are made of resiliently flexible material which may be porous or microporous and which may be capable of assimulation by the body. Each support member 56 has a slit 57 in which the ends of a suture may be frictionally secured or through which the suture ends may be passed for tying together over the bridge.
Patent GB-1138893-A (GB)
Title: New phosphite esters
IPC: C08J9/00
Filed: 1966-06-03
Abstract: 1,138,893. Phosphite esters; N-(chlorophenyl)-amino alcohols. PROGIL. 3 June, 1966 [4 June, 1965; 7 April, 1966], No. 24897/66. Heading C2C. [Also in Division C3] Novel compounds of the general formula wherein R is a divalent aliphatic hydrocarbon radical, R<SP>1</SP> is alkyl, chloroalkyl or phenyl, n is 1-5 and x is an integer not greater than 3, are prepared by reacting a phosphite of the formula (R<SP>1</SP>O) 3 P with an N-(chlorophenyl)-amino alcohol of the formula The reaction is generally carried out above 100‹ C., under an inert atmosphere and in the presence of an alkali metal alkoxide or hydroxide as catalyst. The type of phosphite product depends on the molar ratios used. In the case of chloroalkyl phosphites the product may also be obtained by reacting PCl 3  with the amino alcohol at 50-90‹ C. in an inert organic solvent and reacting the product so obtained with an alkylene oxide at temperatures below 30‹ C. The products may be used as stabilizers in halogen containing vinyl resins and as flame resisting agents in polyurethane foams. The N-(chlorophenyl)-amino alcohols can be obtained by condensing the corresponding chlorobenzene with an excess of the corresponding amino alcohol by heating under reflux and details are given for the preparation of N-(trichlorophenyl)-ethanolamine.
Patent GB-227184-A (GB)
Title: Improvements in or relating to electrical heating apparatus
IPC: H05B3/00
Filed: 1923-10-09
Abstract: 227,184. Hadley, F. V., and Carleton, R. A. Oct. 9, 1923. Rollers or cylinders, hollow.-A calendering cylinder 1 for use in electric heating apparatus has a heating surface 21 and current is supplied to a transformer 9 from the outside by means of brushes 6, 7, 8 and slip-rings 56, 57, 58. A fusible cut-out 12 and a thermostatic circuit breaker 14, set to open at a lower temperature are provided in the primary circuit. The temperature can be regulated by utilizing sections only of the primary windings. The heating surface 21 is connected to the secondary of the transformer by connections 18, 181, 19, 191, of low resistance.
Patent GB-615974-A (GB)
Title: Improvements relating to valves for the control of liquids or gases
Inventor: ASHTON BENJAMIN N
IPC: F16K11/07
Filed: 1944-12-14
Abstract: 615,974. Valves. ELECTROL, Inc. Dec. 14, 1944, No. 25127. Convention date, Sept. 30, 1943. [Class 135] [Also in Group XXVI] The valve closure member 15, Fig. 1, has a. peripheral groove 15a loosely housing a rubbery ring 16 which projects from the groove and is deformable by fluid pressure, to the form shown in Fig. 4, to make a fluid-tight joint with a cylindrical seat 10a. Fig. 6 shows a shuttle-valve closure member 65 carrying rubbery rings 66 which moves with a snapaction from one end position to the other in response to pressure exerted on its ends to control the passage of fluid from the inlets 61, 62 to the outlet 64 via the passages 65b between the lugs 65a. The snap-action device comprises a spring 67 encircling the member and engaging rings at opposite ends which bear against a series of balls 70, 71, one of which may enter one of the peripheral grooves 73, 74, while the other bears against one of the inner ends 61#, 62e of the couplings 61, 62 respectively. In a modification, the shuttle-valve member moves without the snap action and carries flanges which guide it in the casing. In a further modification, two valve closure members, similar to that in Fig. 1, on a single operating stem control the passage of fluid from an inlet to either of two outlets.
Patent GB-361917-A (GB)
Title: New vulcanisation accelerators and the application thereof
IPC: C08K5/00
Filed: 1930-08-22
Abstract: Arylenethiazole derivatives are prepared by converting a 2-mercaptoarylenethiazole by suitable known general synthetic methods into a derivative of the type:-- <FORM:0361917/IV/1> or <FORM:0361917/IV/2> wherein Ar represents an o-arylene radicle, X a methylene radicle, and Y an alkyl, aralkyl or aryl group.  Thus such products are prepared by condensing a monohalogenated ketone with one mol., or an a .g -dihalogenated acetone with two mols. of a 2-mercaptoarylenethiazole.  In examples is described or referred to the condensation of (1) monochloracetone (one mol.) with one mol. of 2-mercaptobenzthiazole, 2-mercapto-a - and b -naphthathiazole; (2) phenacylbromide (one mol.) with one mol. of 2-mercaptobenzthiazole; (3) a .g -dichloracetone (one mol.) with two mols. of 2-mercaptobenzthiazole, 2-mercapto-a - and b -naphthathiazole.  The products are of use as vulcanization accelerators.ALSO:Vulcanization accelerators exhibiting "delayed action" in the vulcanization process comprise derivatives produced by converting a 2-mercaptoarybenethiozale by suitable known general synthetic methods into a derivative of the type:-  <FORM:0361917/V/1> wherein Ar represents an o-arylene radical, X a methylene radical and g  an alkyl, aralkyl or aryl group.  Thus a monohalogenated ketone is condensed with one mol., or an a -g -dihalogenated acetone with two mols. of a 2-mercaptoarylenethiazole.  The products are particularly effective when used in conjunction with a basic organic accelerator, such as a diarylguanidine.  In examples the condensation of monochloracetone (one mol.) with one mol. of 2-mercaptobenzthiazole 2-mercapto-a - or b -naphthathiazole, of phenacyl bromide (one mol.) with one mol. of 2-mercaptobenzthiazole, and of a -g -dichloroacetone (one mol.) with two mols. of 2-mercaptobenzthiazole, 2-mercapto a - or b -naphthathiazole, is described or referred to, and a table illustrating the effect of these products in the vulcanization of a rubber mix is given.
Patent GB-699096-A (GB)
Title: Improvements in or relating to inhalers
IPC: A61M11/06
Filed: 1950-10-17
Abstract: 699,096. Inhalers. HARDINGE, J. H. C. VON D. Oct. 17, 1951 [Oct. 17, 1950; Dec. 15, 1950], Nos. 25212/50 and 30632/50. Class 81 (ii). [Also in Group XXVIII] An inhaler comprises electric vibrator means coupled to a diaphragm type air pump which is connected with atomising means adapted to entrain medicament in the air stream produced. The vibrator unit 2 comprises a U-shaped core 9 on which is mounted a coil 7 energised by alternating current to cause vibration of an armature 11 having an extension 14 connected with a diaphragm 15 of an air pump 3. Vibration of the diaphragm 15 causes air to be drawn through an inlet valve 21 into a pump chamber 16 and to be expelled through an outlet valve 22 and thence to a nozzle 30 of an atomiser 4. Medicament is contained in a chamber 32 in the atomiser 4 and is drawn through a second nozzle 31 by the passage of air across it from the nozzle 30. An S-shaped duct 33 is provided for the passage of the air stream and entrained medicament. Air enters the top and bottom of a casing 1 which encloses the vibrator unit 2, pump 3 and atomiser 4 by way of ventilation apertures 27, 28. Medicament is supplied to the atomiser chamber 32 on removal of a plug 35 which is-provided with an arcuate air inlet slot 38, the size of which is regulated by a rotatable disc 36 having a corresponding arcuate slot 39. In a modification (not shown) the pump chamber is mounted on a block contained within the vibrator unit core and the pump diaphragm is connected directly with the armature. Specification 699,105, [Group XXVIII], is referred to.
Patent GB-460430-A (GB)
Title: Improvements in matrix magazines for typographical composing machines
IPC: B41B11/14
Filed: 1936-09-16
Abstract: 460,430. Type-bar-making machines. INTERTYPE, Ltd. Sept. 16, 1936, No. 25223. Convention date, Feb. 20. [Class 100 (iii)] Magazines.- The chanelled top and bottom plates 1, 2 of a magazine, which are composed of aluminium or an aluminium alloy, are provided with an artificial coating of aluminium oxide, e.g. by anodic treatment, which is harder and smoother than the aluminium alloy itself, so that the surface may be more easily cleaned, and that the matrices may slide more smoothly thereover. The oxide coating is polished, and may be impregnated with organic or inorganic colouring matter. The side-bars 3 and the transverse bars 7 of the magazine may also be made of aluminium, and be treated in the same way. Specification 14582/90, [Class 100], is referred to.
Patent GB-230126-A (GB)
Title: Improvements in or relating to rotary mixing machines for slurry and other liquids
IPC: B01F15/00
Filed: 1923-10-10
Abstract: 230,126. Vickers, Ltd., and Parker, L. D. Oct. 10, 1923. Batch-mixers with circulating-devices. - In a mixing machine for slurry and other liquids, of the kind in which circulation is effected by hollow arms rotating on a vertical axis, the rotating arms D are connected to a central uptake C. The bottom of the uptake C is provided with a sliding sleeve J which may be lowered on to a seating by means of a hand-wheel K to close the uptake for filling the uptake and arms when the machine is started; or the arms may be submerged for this purpose. The arms are curved and are provided with raised parts d<1> at their outer ends to facilitate the initial filling. The arms may be connected to a common uptake, or each to a separate uptake, and may be replaced by spaced discs separated by webs. The arms may be replaced at different levels. The container is filled by a pipe E.
Patent GB-252839-A (GB)
Abstract: 252,839. Livingstone, J. April 3, 1925. Walls.-Walls and partitions, either single or double, consist of flanged uprights A and slabs D which are retained endwise and inwardly by the uprights and outwardly by ties E, Fig. 1, or yokes F, Fig. 4. The ties are placed in the joints and cement is also run therein.
Patent GB-784018-A (GB)
Title: Impedance transformation arrangement for very high frequencies
IPC: H01P5/02
Filed: 1955-09-02
Abstract: 784,018. Impedance transformation. STANDARD TELEPHONES & CABLES, Ltd. Sept. 2, 1955 [Sept. 7, 1954], No. 25285/55. Class 40 (8). A transformation arrangement between two coaxial transmission lines of different characteristic impedances comprises cylindrical layers of dielectric 5, 7 and of metal 6. The dielectric layers may be made of material having different dielectric constants and form with the metal cylinder a pair of #/4 transformers where # is the wavelength of the propagated energy in the dielectric. The three layers may form a unit which may be displaced within the coaxial line.