baber/WOPTO huggingface dataset:
Patent GB-568310-A (GB)
Title: Improvements in or relating to side seam soldering machines
IPC: B23K1/16
Filed: 1943-09-22
Abstract: 568,310. Soldering. CONTINENTAL CAN CO., Inc. Sept. 22, 1943, No. 15550. Convention date, Dec. 11, 1942. [Class 83 (iv)] In a machine for soldering the side seams of square cans after the ends have been attached by double seaming, a conveyer for traversing the cans over a number of soldering irons moved individually into and out of a solder bath into position to be contacted with the side seam of the can, includes means for stopping the can while an iron is moved into contact with the seam at a point adjacent to the double seam at the advancing end of the can so that solder may be applied at this end close up to the double seam which projects over the side wall of the can. The cans are traversed in guides 20 over a solder bath 11 containing a number of soldering-irons 12, which are carried by levers 13 held by springs 18 in contact with cams 16 on a shaft 17 rotated by bevel gear from a shaft 24 driven by chain gear from the main shaft, the traverse of the cans is effected by a number of lugs 27 on a continuously traversed overhead chain spaced apart a distance greater than the length of the can. When the forward end of the can approaches the iron 12a which is provided at its front end with a well to contain solder projecting above its surface, the can is first traversed at a greater speed than the chain by a spring-pressed finger 39 pivoted on a bar 28 which is reciprocated in guides on the frame by a connecting rod 30 and lever 29 engaging a can 33 on a shaft 34 driven by chain gear from the shaft 24. The lever 29 is pressed against the cam 33 by a spring 36 and by a weighted arm 37. The bar 28 carries a cam 51 which engages a roller 53 on a spring-returned stop member 44 so as to bring this member into the path of the can, which is thus stopped while the soldering-iron 12a is raised into contact with the end thereof adjacent the double seam. The lug 27 at the rear of the can then overtakes the can and traverses it over the rendering soldering-irons to complete the soldering of the seam, the iron 12a being retracted by its spring when the bar 28 returns to its initial position. The irons are moved in succession into contact with the seam. The finger 39 yields when the next can is brought into contact therewith and allows the can to pass.
Patent GB-1497840-A (GB)
Title: Data decoding circuit
IPC: H03L7/081
Filed: 1976-04-15
Abstract: 1497840 Data decoding NCR CORP and CONTROL DATA CORP 15 April 1976 [28 April 1975] 15575/76 Heading G4C An oscillator 20 in a phase locked loop 14 is controlled by a phase detector circuit 16 which receives input data and supplies an output to a decoder 28 which also receives a clock signal derived from oscillator 20 and supplies a decoded data signal. Input data in which each 1 is represented by a signal level transition, for example from a magnetic tape, is supplied to a circuit 12 which supplies a pulse for each signal level transition. If a signal level transition is shifted by more than a predetermined amount from a nominal position, which might result in erroneous decoding, an output is provided by a circuit 32. A clock signal output is derived at 30 from a phase shifter 26 receiving the outputs of frequency halves 24, 22 connected to oscillator 20.
Patent GB-856146-A (GB)
Title: Improvements in or relating to toroidal coils
IPC: H01F17/06
Filed: 1957-05-16
Abstract: 856,146. Winding toroidal coils; making inductors. COMPAGNIE INDUSTRIELLE DES TELEPHONES. May 16, 1957 [May 17, 1956], No. 15596/57. Classes 83 (2) and 83 (4). [Also in Group XXXV] The winding of enamelled wire on an insulating annular former comprising two half shells which when put together enclose a space for a magnetic core, is facilitated by the provision of fins 2, 3 around the former which can be gripped without harm by the jaws 19, 20 of the winding machine. One compartment between adjacent fins is wound at a time, the former being reciprocated while spring 31 acts through arm 28 to hold the jaws together. To rotate the former for winding the next compartment, upward pressure at 33 relaxes the hold of the jaws and a pawl (not shown) engages a fin, using it as a ratchet tooth to rotate the former. All compartments may be wound with the same wire which can be cut at the fins to form one winding per compartment, the ends being soldered to terminals on insulating checks between which the former is subsequently bolted.
Patent GB-150847-A (GB)
Title: Fountain pen
IPC: B43K5/04
Filed: 1919-06-23
Abstract: 150,847. Jeffreys, R. W. June 23, 1919. Reservoir pens.-A double presser-bar actuated by a stud or pin through a small hole in the side of the barrel is provided for compressing the collapsible sac in self-filling reservoir pens. The presser-bar is made in two superposed portions C<1>, C<4> connected together at one end C<2> and is held in registration with a hole E in the barrel A by a clip C on the free end of the upper portion C' engaging a groove A<7> on the inner end of the nib-section A<1>. Compression is effected by passing a pin D on the nib-covering cap A<5> through the hole E into contact with the pressure-bar. Alternatively the end C of the presser-bar can be held at the end of the barrel remote from the nib-section, as shown in dotted lines. To prevent accumulation of dust, a stud formed with a concave upper surface to receive the pin D may be secured to the upper bar C<1> in order to close the hole E.
Patent GB-399603-A (GB)
Title: Improvements in disinfectant containers for cisterns
IPC: E03D9/03
Filed: 1932-06-04
Abstract: 399,603. Disinfecting-apparatus for water - waste - preventers. DOBSON, F. H., 253, Hyde Park Road, Headingley, Leeds. June 4, 1932, No. 15721. [Class 26.] A disinfecting - apparatus for a water-waste-preventer comprises a disinfectant container A closed at the top and open at the bottom, to which is affixed a cylindrical support B apertured at b<3> and providing a closure b for the container; the latter accommodates a tube C the end of which is adapted to be covered or uncovered by a float D according to the depth of water in the cistern, the tube serving as a disinfectant outlet and also as an air inlet. In the form shown, the float is carried upon a tube d closed at d<1> and having an internal diameter larger than the external diameter of the tube C ; further, the support B is screwed on to the vessel A with the interposition of packing B<1> and is provided with a heavy closure-disc E having a projection e<1> serving to limit the travel of the float. In another form, the vessel A has a closable filling aperture and the disc E may be screwed into the support B, or may be provided with a screw instead of the projection el whereby the travel of the float may be regulated.
Patent GB-164358-A (GB)
Title: Improved process and apparatus for distilling petroleum and other hydrocarbon oils under pressure
Filed: 1920-07-05
Abstract: 164,358. Standard Oil Co., (Assignees of Chamberlain, H. P.). Oct. 20, 1913, [Convention date]. Drawings to Specification. Varnishes. - The Specification as open to inspection under Sect. 91 (3) (a) describes also the use as varnish of a solution in naphtha of the asphaltic residue from the distillation of oils which contain hydrocarbons of viscosities intermediate between that of burning oil and of medium lubricating oil, and may be 'heavy paraffin distillate, crude oil, residual oils, &c. This subject-matter, which does not appear in the Specification as accepted, is described in Specification 146,472.
Patent GB-1432316-A (GB)
Title: Plethysmographs
IPC: A61B5/0295
Filed: 1974-04-10
Abstract: 1432316 Plethysmograph for measuring cardiac output M ASRICAN 10 April 1974 [19 April 1973] 15879/74 Heading G1N(E) In a plethysmograph for measuring cardiac (blood volume) output, the voltage (due to a source 10 of alternating constant current connected to electrodes 11 and 12) picked up by a pair of electrodes 14 and 15 is fed via an amplifier 5 to a detector 16 whose output is connected to a digital indicator 17 to provide a read-out corresponding to the base impedance Zo of the thorax. The detectors output is also applied to an amplifier 20 and to a differentiator and filter circuit 22 by way of a gate circuit 23. The gate circuit interrupts the signal to the differentiator circuit when the output of amplifier 20 exceeds a predetermined value (to mitigate the effects of breathing in the measurement outputs). The output of the amplifier 20 is proportional to the rate of change of impedance #Z of the thorax from base level, and the output of the differentiator 22 provides a signal proportional to <SP>d2</SP>/dt which is directly proportional to the pulmonary flow-rate. The amplifier 20 may be in the form of a differential amplifier whose other input is derived from the oscillator 10 via a detector 32. The outputs of the amplifier 20 and the differentiator 22 may be calibrated with the aid of a calibration generator 40. The description also discloses examples of typical waveforms, Figs. 3 and 4 (not shown).
Patent GB-398464-A (GB)
Title: Improvements in or relating to incandescent burners
IPC: F23D99/00
Filed: 1933-06-01
Abstract: 398,464. Incandescent burners. ALADDIN INDUSTRIES, Ltd., Aladdin Building, Greenford, Middlesex.-(Assignees of Davis, C. W.; 315, Lincoln Avenue, Alexandria, Indiana, U.S.A.) June 1, 1933, No. 15881. Convention date, June 16, 1932. [Class 75 (i).] An inverted-mantle holder 10, particularly for vapour lamps, is detachably secured by resilient prongs 12 within the burner head 5. The prongs 12 have curved ends 12a for engaging an annular recess 8 in the head, the inner wall of which is tapered at 9 for retracting the prongs during insertion. The holder 10 is provided with a seat 13 for the reception of the upper end of a soft mantle and with a wire gauze 14 for preventing flashing back of the flame.
Patent GB-403074-A (GB)
Title: Improvements in electric cables
IPC: H01B7/22
Filed: 1932-06-06
Abstract: 403,074. Cables. CROYDON CABLE WORKS Ltd., and BROOKING, J. H. C., Mitcham Road, Croydon. June 6, 1932, No. 15888. [Class 36.] To prevent corrosion of the wire screen which is embedded in a cable of the trailing type, sheaths of unvulcanized rubber or rubber compound not containing sulphur are disposed immediately over and under the screen. The Figure shows a cable having cores 1 insulated with rubber and embedded in a sheath 2 of unvulcanized rubber compound, over which is applied a braided screen 3 of fine wires. An outer sheath 4 of unvulcanized rubber compound completes the cable. The rubber compound of the sheaths 2, 4 may include asbestos fibre and carbon black. ,
Patent GB-573670-A (GB)
Title: Production of vinyl chloride
IPC: C07C17/08
Filed: 1943-09-29
Abstract: Vinyl chloride is prepared by passing a mixture of acetylene and hydrogen chloride over a catalyst comprising mercurous chloride and free from mercuric chloride, preferably in comminuted form and supported on a carrier, e.g. charcoal, porous clay, active carbon, silica gel or pumice.  In the examples, a gaseous mixture of acetylene and hydrogen chloride is passed over such a catalyst contained in a tubular reactor immersed in a heated liquid bath.  The catalyst is prepared by: (1) reducing mercuric chloride with dextrose, suspending the resulting mercurous chloride in water, stirring with granular charcoal and subsequently drying; (2) impregnating charcoal with mercuric chloride and reducing with a solution of sodium dicarbonate, dextrose and magnesium chloride in situ; (3) impregnating granular activated carbon with mercuric chloride and reducing with sulphur dioxide in situ.  Other reducing agents which may be used include ammonium sulphite and formic acid. The catalyst may also be prepared by first impregnating the carrier with mercurous nitrate and then with a chloride solution, or by impregnating with mercury followed by chlorination with chlorine or hydrogen chloride, the reaction may also be carried out at pressures higher or lower than atmospheric.
Patent GB-493334-A (GB)
Title: Safety razors
IPC: B26B21/34
Filed: 1937-06-11
Abstract: 493,334. Safety razors. YONETA, T. June 11, 1937, No. 16239. [Class 30] A blade 4 held in a pivoted holder 3, or a pivoted hollow - ground blade, is clamped in proximity to a guard roller 7 by a frictiontight flanged plate 8 hinged on the axis 9 of the roller 7. The clamp covers the front of the blade except the edge. A pivoted cover 10 to screen the cutting edge when the razor is not in use, and a roller 11 on the pivot pin 2 of the holder are provided. The plate 8 also acts as a guard. Shaving waste collects within the frame whence it can easily be removed by opening the clamp and raising the blade. No handle is fitted, the razor being held by placing the finger tips on the sides of the frame. For stropping, the strop is engaged with the rollers 7, 11 and the blade turns over at each end of the stroke.
Patent GB-879313-A (GB)
Title: Improvements in electrical devices for catching fish
Inventor: KREUTZER CONRADIN OTTO
IPC: A01K79/02
Filed: 1960-05-09
Abstract: 879,313. Fishing apparatus. SMITH RESEARCH & DEVELOPMENT CO. Inc. May 9, 1960, No. 16260/60. Class 48. An apparatus for catching fish comprises an electrical impulse generator 4, a transformer 7 and a pair of electrodes 1, 2 disposed in the water so that the electric field between the electrodes urges the fish into a net 3, the transformer being located close to the electrodes. More than two electrodes and more than one transformer may be used. The number of electrodes of one polarity may be greater than the number of electrodes of opposite polarity. Specification 879,314 is referred to.
Patent GB-203777-A (GB)
Title: Improvements in cardboard boxes
IPC: B65D5/20
Filed: 1922-06-13
Abstract: 203,777. Thomlinson, W. G. June 13, 1922. Folding boxes.-A collapsable cardboard box is formed from a blank having a central base portion 1, sides 4, 5, flaps 6, 7 forming the top and interengaging by means of tongues and slots, ends 10, 11 with stiffening flaps 14, 15 and extensions 12, 13 slotted to interengage and to lie beside the sides 4, 5. Reference has been directed by the Comptroller to Specifications 3232/83, 5401/96, 23454/99, 26624/02, 18016/12, and 154,341.
Patent GB-1344510-A (GB)
Title: Disazo pigments and process for their manufacture
IPC: C09B43/38
Filed: 1971-05-21
Abstract: 1344510 Disazo pigments CIBA-GEIGY AG 21 May 1971 [21 May 1970] 16359/71 Heading C4P [Also in Division C3] The invention comprises disazo pigments having the general formula wherein R 1  is a benzene radical; R 2  is an alkyl, cycloalkyl, aralkyl or aryl radical; R 3  is a naphthalene radical with the azo, OH, and CONH groups in the 1, 2 and 3 position respectively and R 4  is an arylene radical, excluding m-phenylene. The pigments contain no water-solububing substituents. The pigments may be prepared by condensing a carboxylic acid halide of formula with an arylene diamine in a molar ratio of 2 : 1. Alternatively a diazo or diazoamino compound of an amine of formula H 2 N-R 1 -SR 2  may be coupled with a 2-hydroxy-3-naphthoic acid arylamide of formula in a molar ratio of 2 : 1. The dyes give red shades on high molecular weight organic materials, e.g. polyamides, polyesters, polyurethanes, natural and synthetic resins and in printing inks and lacquers.
Patent GB-1508125-A (GB)
Title: Diaphragm pumps
IPC: F04B43/00
Filed: 1974-04-11
Abstract: 1508125 Diaphragm pumps METAQUIP Ltd 7 April 1975 [11 April 1974] 16379/74 Heading F 1A A hydraulically-actuated diaphragm pump comprises diaphragm chambers 2, Fig. 2, at each end of a housing in which an eccentric 10 reciprocates diaphragm-actuating pistons 6 in cylinders 5 connected via passages 19 to the concave side of a respective hemispherical diaphragm 39, Fig. 4, a pumping chamber 42 being defined by the converse side of the diaphragm and having an inlet valve 46 and an outlet valve 47. Each diaphragm chamber is removably mounted on the main housing by a bracket member 17 and has inlet and outlet connections 48 and 50 to inlet and outlet manifolds 49, 51, the latter having a pressure gauge (53), Fig. 1 (not shown). The diaphragm 39 is clamped in place by a member 34 secured by a threaded ring 33. The diaphragm chambers are seated below the plane of the piston and driveshaft axes to facilitate bleeding of air from the actuating liquid via upper cylinder port 44, the housing being filled with actuating liquid which enters cylinder 5 via lower port 44.
Patent GB-1300623-A (GB)
Title: Flow meter
IPC: G01P5/08
Filed: 1970-04-07
Abstract: 1300623 Measuring fluid-flow electrically MITSUBISHI DENKI K K 7 April 1970 [7 April 1969(2)] 16382/70 Heading G1N [Also in Division G3] A method of measuring rate of flow of a liquid, particularly a conductive liquid, such as molten metal, comprises an inclined trough down which the liquid flows and means downstream for measuring the cross-sectional area of the liquid. As described the measuring means comprises a coil 20 at position B at which the liquid has an area SB and a velocity VB. At a point A at a vertical distance h higher the area is SA and the velocity VA. The rate of flow Q is given by Q = VAÎSA=VBÎSB. Assuming no energy loss due to viscous resistance, VA<SP>2</SP>+2gh = VB<SP>2</SP> and Therefore if the upper velocity is V A  is very small and the height h is known the flow-rate may be determined by measuring the area SB. The liquid flows through the coil 20 and it can be shown that if S o  and L o  refer to the total area and the inductance of the coil when no fluid flows, then SB/S o  = K#L/L o  where # L is the change in inductance and SB is the cross-sectional area of the fluid. Hence Qα #L, and #L may be measured using a bridge circuit as shown in Fig.3. With no flow the bridge is balanced by adjusting the capacitor 44. When fluid flows and the change of #L occurs in the inductance, the bridge is rebalanced by varying capacitor 44, this change in capacitance being related to the change in inductance. A signal representative of the capacitance change is applied to a computation and display device 24 to present the rate of fluidflow. Other arrangements disclose measurement of the cross-sectional area at two points at different heights and the use of Equation 1 above for cases where the upper velocity is not negligible. For higher accuracy three measuring coils may be used. Fig. 5 discloses an automatic fluid-flow arrangement in which the output of the computation device is applied to a comparator 30 together with a reference signal 32 to provide an error signal to control a flow regulator 28. A similar arrangement with two measuring coils 20 is also described, Fig.9 (not shown).
Patent GB-314943-A (GB)
Title: Improvements in or relating to machines for grinding surfaces of revolution
IPC: B24B17/02
Filed: 1929-05-28
Abstract: 314,943. Anciens Etablissements Fetu-Defize Soc. Anon., and Delu, F. July 5, 1928, [Convention date]. Rollers and the like, treating.-In a grinding- machine for grinding concave or convex surfaces of revolution wherein the grinding-wheel is mounted on a slide 21 pivoted about a horizontal pivot on a carriage 7, which is traversed on a bed 8, the slide 21 rising and falling under control of a templet 16, the rise and fall is effected by the screwed end 3<a> of a spindle 3, the end 3<a> engaging a nut 9 connected with the slide 21. The spindle is partially rotated by means of a rocker arm 2, which is moved, through a slide 13 and parts 13a, 14 by the contact of a roller 15<a> with a selected templet 16<a> or 16b. The thread 3<a> is such that the weight of the slide 21 moves the rocker arm up to the templet, and setting and adjusting-means 4, 4a, 5, 3<b>, 3<d>, 2a, 6<a> are provided.
Patent GB-377369-A (GB)
Title: Improvements in or relating to water supply and like taps or valves
IPC: F16K21/10
Filed: 1931-06-05
Abstract: 377,369. Hydraulic shock-absorbers. BOOTH & CO., Ltd., S. and LEE, H., Cheapside Works, Cheapside, Birmingham. June 5, 1931, No. 16428. [Class 108 (iii).] In a self-closing tap or valve, a valve 22 for regulating the flow through the suction port 9f of a concussion-preventing dashpot 9 is adjusted by the rotation of the valve spindle 13 which is lowered for the initial opening of the main valve 14. The upper part of the valve 22 is angularly shaped and fits a recess in the piston 15. Rotation of the spindle 13 by the handle 19 or by applying a screwdriver to a slot in its head causes the cone-shaped part of the member 22 to be screwed into the bottom of the chamber 9 to cover the orifice 9f. Adjustment is also possible before the tap is fitted by the application of a key to the squared end 9e of the chamber 9 to screw it upon the valve 22.
Patent GB-1005722-A (GB)
Title: Process for producing trans-chrysanthemic acid esters
IPC: C07C69/757
Filed: 1964-04-21
Abstract: Alkyl esters of cis-chrysanthemic acid are converted into the trans-form by heating them with an alkali-metal alcoholate in an inert solvent to a temperature of about 150-200 DEG  C. Preferably, the reaction is effected by heating the cis-ester to the specified temperature under pressure in a lower primary alcohol corresponding to that from which the alkali-metal alcoholate is produced, but other methods of procedure are also indicated.  The products may be converted into trans-chrysanthemic acid by hydrolysis with an inorganic acid, after decomposing the alkali-metal alcoholate. Examples are given of the conversion of ethyl, propyl and butyl cis-chrysanthemates.  Specification 856,400 is referred to.
Patent GB-1484756-A (GB)
Title: Automatic document handler
IPC: G03B27/62
Filed: 1975-04-21
Abstract: 1484756 Registering sheets XEROX CORP 21 April 1975 16462/75 Heading B8R In a device for feeding documents into registered position on a platen 6 by means of a transport belt 34 an internal pressure roller 48 is arranged to hold the operative run of the belt against the register stop 22 when this is in the operative position and to hold this run against the platen when the stop is lowered. The document is fed on to the platen over the stop when this is in the raised position. The belt is reversed to register the document against the stop and the stop is then lowered so that the document may be reverse-fed off the platen.
Patent GB-642631-A (GB)
Title: Improvements in household washing machines
IPC: D06F39/00
Filed: 1948-06-18
Abstract: 642,631. Washing-machines. O'NEILL, T. P. June 18, 1948, No. 16473. [Class 138 (ii)] A washing-machine comprises in combination a static boiling copper 1, a heating device 26 therefor, a top cover 3 integral with the copper, a hinged or removable lid 6, a collar 8 with notches 10 in its edge and disposed within the upper part of the copper to provide an annular space 27 between the collar and copper, a fluid circulating pump 13 with an inlet 15 above the collar and adjacent the inner wall of the copper, and a fluid jet delivery device or turbulating unit 20 at the base of the copper discharging at an angle to the walls of the copper. In operation the pump 13 first induces a flow of air and steam which is passed down a pipe 18 and discharged at high velocity through perforations 21 in arms 22 forming part of the delivery head 20. The jets have upwardly-inclined paths and cause turbulence and change of position of the articles being washed. On reaching boiling point the water escapes through the notches 10 to the space 27 and a mixture of air, steam, soap suds and water is picked up and circulated by the pump. The pump 13 may be a multistage impeller driven by an electric motor. The pump inlet pipe 12 is bent to U-form and an indent 11 moulded or pressed in the collar 8 to accommodate it. The copper may be heated by a gas burner 26 or by live steam, or an electric immersion or other type of resistance or induction heater.