baber/WOPTO huggingface dataset:
Patent GB-1470366-A (GB)
Title: Electric immersion heaters
IPC: H01H37/54
Filed: 1973-06-28
Abstract: 1470366 Thermal switches OTTER CONTROLS Ltd 13 May 1974 [13 Feb 1973 25 April 1973 28 June 1973 3 July 1973 22 Oct 1973] 21104/74 21105/74 30897/73 31630/73 and 49077/73 Divided out of 1470364 Heading H1N [Also in Division H5] A thermally controlled immersion heater comprises a heating unit H and a clamping unit C, the heating unit H having a flat or dished metal mounting head 2, and the clamping and heating units being mounted on opposite sides of a vessel wall and being clamped around an access aperture therein by a plurality of connecting means 11, 93, 92. As shown, the clamping unit is separate from a thermal switch unit but it may be integral therewith (Figs. 1-4, not shown). The Fig. 1-4 embodiment is also disclosed in copending Specification 1,470,365 which has claims directed to the mounting of the bimetallic snap action actuator on a thermally insulating portion of the switch housing. The immersion heater shown is controlled solely by the element overheating switch S. Switch S comprises a moving contact 34 on a blade 80 which co-operates with trifurcated bimetal 23 via a push rod 78, so that when the element 3 overheats bimetal 23 snaps from contact with convex boss on head 2 and moves the contact 34 away from fixed contact 35. The switch housing 73 is clamped to the head 2 by means of threaded sleeves 93 screwed in to studs 11 of the head 2. The housing 73 fits within the aperture in the vessel wall, a sealing ring 10 surrounding it being compressed by the head 2 against the wall when the clamping unit C is secured to the switch unit S by screwing the bolts 92 into the sleeves 93. The clamping unit C surrounds the switch unit and bears against the vessel walls. In Fig. 7, the switch unit C is clamped to heater H by nuts 114, 115 screwed on to studs 11 of the head 2. Sealing rings 10, 20 are interposed between the vessel wall K and the units C, H. The bimetal actuator 23 is mounted directly on the base 8 of the head 2 by a nut and bolt or by riveting. The fixed contact 35 of the switch is mounted on a cold lead 40 of the heating element 3, and co-operates with moving contact 34 on blade spring 105. A push rod 103 couples the actuator 23 and the moving blade spring 105. An earth terminal pin 111 is welded directly to head 2. A protective shroud is secured to the switch unit S by a bolt 116 engaging in the nut 115. Instead of the connecting means being in the form of studs and nuts, bolts extending through the switch unit and engaging in threaded bosses on the head plate, may be used instead, spring clips may be used instead of nuts. The thermal actuator may be replaced by a float which de-energizes the element at a low liquid level of by a weight operated switch which de-energizes the element when the weight of liquid falls to a predetermined level. The bimetal actuator may be replaced by a vapour capsule or a Curie point device. The immersion heater may have a steam sensitive switch only so that it may be utilized with the kettle described and claimed in copending Specification 1,470,364.
Patent GB-157626-A (GB)
Title: Improvements relating to protective devices for alternating electric current systems
IPC: H01F38/30
Filed: 1919-12-10
Abstract: 157,626. Palmer, J. B., and Metropolitan - Vickers Electrical Co., Ltd. Dec. 10, 1919. Transformers.-The core 1 of the transformer of a balanced split-conductor protective system is twisted to the shape of a figure 8 when viewed in side elevation, and the split conductors 4, 5 are passed in the same direction through the loops so formed.
Patent GB-341104-A (GB)
Title: Improvements in and connected with the extrusion of pipes or tubes of lead
IPC: B21C29/00
Filed: 1929-10-12
Abstract: 341,104. Squirting. ROBERTS, R. E., Windley Street Lead Works, Bolton. Oct. 12, 1929, No. 30983. [Class 83 (iv).] Extruded lead pipe is cooled to or below 100‹ F. before coiling or bending. The die c, by which the pipe b is formed, is carried by a cylinder B and cooling air or water is projected on the pipe by a tube a. Any water which collects at the bottom of the cylinder B is withdrawn by a tube d connected to a pump.
Patent GB-520780-A (GB)
Title: Improvements in and relating to binocular telescopes
IPC: G02B7/12
Filed: 1938-10-26
Abstract: 520,780. Binocular telescopes: RODERICK, E. C., and COWAN, J. J. Oct. 26, 1938. No. 31022. [Class 97 (i) ] The hinge joint between the two bodies of a binocular telescope comprises cylindrical segments 4 on the stretcher bars 5 which are pressed into frictional engagement with a centre pin 1 by collars 7 engaging the ends of the segments, the engaging surfaces of either the collars or the segments, or both as shown, being tapered and the collars being forced towards one another. In the form shown in Fig. 1, the collars are held by a flange 3 on one end of the pin 1 and a headed screw 9 screwed into its other end; the screw 9 is slit at 10, and locked by a taper screw 11 entering a corresponding bore in it to expand it. In the form shown in Fig. 2, a spring 14 retained in a recess in the end of the pin 1 by a screw 16 bears on a press-bar 12 slidably mounted in one of the collars 7, thus causing both collars to engage the pin 1. The spring is released, so that the segments may turn freely, by pushing the bar 12 to bring a cut-away portion opposite to the spring.
Patent GB-646995-A (GB)
Title: Improvements in the bass bar of violins, viols and the like
IPC: G10D3/04
Filed: 1947-11-24
Abstract: 646,995. Violins &c. HARVEY, L. J. T. Nov. 24, 1947, No. 31032. Convention date, Dec. 19, 1946. [Class 88 (ii)] The bass bar of a violin or like instrument is lightened by making it of several beams and struts, as in Fig. 9, or of one piece with holes in it, as in Fig. 10.
Patent GB-393958-A (GB)
Title: Improvements in electrical induction furnaces without closed ferro-magnetic circuits
IPC: H05B6/02
Filed: 1931-11-10
Abstract: 393,958. Transformers. ALLM€NNA SVENSKA ELEKTRISKA AKTIEBOLAGET, Võsteras, Sweden. Nov. 10, 1931, No. 31142. Convention date, Feb. 9. [Class 38 (ii).] The furnaces wherein the inductance coil consists of a number of groups a<1> .. a<5> arranged in parallel, and transformer windings c are arranged in series with some or all of the groups to obtain the required current distribution, the algebraic sum of the ampere-turns of the transformer windings is at most equal to the excitation ampere-turns. In one arrangement the algebraic sum of the ampere-turns of the secondaries is zero. In other arrangements the algebraic sum differs by an amount equal to the excitation ampere-turns so that a primary winding is unnecessary. The transformer may be designed for unequal or equal current distribution between the furnace windings. The method of calculating the ampere turns necessary for the various transformer windings is described and a particular example is worked out in detail.
Patent GB-1507318-A (GB)
Title: Position limiting switch assembly
IPC: H01H19/18
Filed: 1975-07-25
Abstract: 1507318 Mechanical switches QUAKER CITY GEAR WORKS Inc 25 July 1975 [25 Oct 1974] 31156/75 Heading H1N A position limiting switch assembly comprises an input drive 16, Fig. 6, connectible to a device 12 having two limit positions, a pair of movable rotor devices 18 each having an adjustable limit position corresponding to one of the limit positions of the device 12, and movable in opposite directions by the input drive 16 whereby one device 18 moves toward, and the other device 18 moves away from, its limit position and a switch actuator 20 engaged with each device 18 for operating a switch 22, Fig. 4, when its associated device 18 is moved to its limit position. The input drive 16 comprises gearing including a driver gear 40 mounted on a shaft 42 and meshing with a pair of gears 52 each mounted on a shaft 54. Each shaft 54 carries a fixed input rotor 62 and rotatably mounted intermediate rotors 64, 66 and an output rotor 68. The input rotor 62 and intermediate rotors 64, 66 each have a peripheral drive lug 70 or 74 engageable with a gear 78 which is rotatably mounted on a shaft 76 and which is engageable with teeth 72 on the adjacent rotor whereby one complete revolution of each rotor causes the adjacent rotor to be rotated through an increment of rotation. The outer rotor 68 has a pin (75) (Fig. 10, not shown) engageable with a gear wheel 88 of the switch actuator 20 which is rotatably carried on the shaft 54. In operation, movement of the device 12 is transferred via a gear 35 to the input drive 16 whereby the shafts 54 are driven in opposite directions causing the rotors to be driven. When the device 12 reaches one of its limit positions, the output rotor 68 on one of the shafts 54 is driven by the preceding rotor 66 causing its drive pin (75) to rotate the switch actuator 20. As a result, a finger 86, Fig. 4, on the switch actuator 20 pivots a yoke member 98 causing microswitches 92 to be closed whereupon the device 12 is stopped and/ or an indicator signal is provided. Another set of microswitches 92 is actuated by the switch actuator 20 on the other shaft 54 when the device 12 reaches its other limit position. To enable the limit positions to be adjusted, each shaft 54 is axially movable against spring bias 60 to disengage the switch actuator from the output rotor 68 and the shaft 42 is axially movable against spring bias 50 to disengage the gear 40 of the input drive 16 from the gears 52 to enable adjustment of the rotor devices 18.
Patent GB-678387-A (GB)
Title: Improvements relating to cushioning devices for use in connection with power presses
Inventor: SHAW ALBERT
IPC: B21D24/02
Filed: 1949-12-06
Abstract: 678,387. Pneumatic dashpots. FISHER & LUDLOW, Ltd. Dec. 15, 1950 [Dec. 6, 1949], No. 31236/49. Class 108(iii) A cushioning device for use with power presses comprises a fixed outer cylinder 14, and an inner cylinder 16 having one end 23 formed as a piston, and a piston rod 19 fixed to the closed end of the outer cylinder 14 and carrying a piston 22 working within the inner cylinder 16, the working spaces of the inner and outer cylinders being connected by a passage 21 through the piston rod 19, and the space A between the two pistons 22, 23 being in communication with atmosphere. The lower die 11 of the press is carried by the closed end 18 of the inner cylinder 16. Facings 40 are provided on the periphery of the inner cylinder 16 to provide an annular passage between the cylinders 14, 16, through which air can pass (via holes 38) between atmosphere and the space A. An inspection hole is provided at 33 and a safety valve at 34. A connection is provided at 31 with a source of compressed air. The device is secured to the base 10 of the press by bolts at 36. In a modification, the bolts are replaced by an extension of the piston rod 19 which passes through a gland in the cylinder end 18, and is rigid with the base 10.
Patent GB-143156-A (GB)
Title: Improvements in grease cups
IPC: F16N29/04
Filed: 1919-12-13
Abstract: 143,156. Williamson, S. S. Dec. 13, 1919. Grease cups.-The piston of a grease cup is actuated by a spring which is set periodically by screwing a sleeve 8 outwards on the stem 7 of the piston by means of a cap 12 which slides over the upper portion of the cup and serves to indicate the feed of grease. The part may be differently coloured from the cap 12 and may be marked with a scale. If the cup is made of glass, the scale may be formed on an inserted coloured thimble 13 held in position by the spring.
Patent GB-1151888-A (GB)
Title: Photographic Camera.
IPC: G03B7/16
Filed: 1966-07-12
Abstract: 1,151,888. Photographic cameras. AGFAGEVAERT A.G. July 12, 1966 [July 14, 1965], No.31263/66. Heading G2A. A photographic camera has a timing circuit including a capacitor 25 and a photo-electric cell 24 exposed to the prevailing illumination and a resistor 30, 31 in parallel with the photo-electric cell for taking into account (a) the guide number of the flash apparatus and (b) the distance from the subject to produce for a flash exposure an appropriate diaphragm aperture. An everset shutter 1 has an opening ring 2 and a closing ring 3. Blades 5 are carried on pins 4 on the ring 2 and have pin and slot connections 35, 36 with ring 3. A retarding mechanism 10, 11 retards the closing of ring 2. A release lever 16 rotates the ring 2 counter clockwise until a pawl 14 moves out of the path of a pin 13. A pin 8 rotates ring 3 through a stop 9. A pawl 18 is actuated out of the path of a lug 3a by a solenoid 20 in the timing circuit, such that ring 3 rotates clockwise to terminate exposure after a predetermined time related to the value of the resistor 30, 31. When a flash exposure is required a switch 37 is closed a switch 38 is opened by a cam 2b at the commencement of an exposure to cause capacitor 25 to charge through photo-cell 24. A transistor 28 causes to conduct when the base of a transistor 27 ceases to be negative with respect to its emitter, such that solenoid 20 is de-energized. Lug 3a closes a switch 21 to operate the flash apparatus with the shutter open.
Patent GB-825687-A (GB)
Title: Improvements relating to change-speed gearing
IPC: F16H47/08
Filed: 1957-10-07
Abstract: 825,687. Variable-speed gear; clutch combinations. DAIMLER-BENZ A.G. Oct. 7, 1957 [Oct. 13, 1956], No. 31364/57. Class 80 (2). A change-ratio transmission in a motor car having an accelerator pedal controlled engine comprises a mechanical gear driven through an hydrodynamic torque converter the pump wheel of which is driven through a two-speed gear giving direct drive and a reduced ratio, establishment of the reduced ratio being effected by kick-down of the accelerator pedal. In one form, an input shaft is fast with a casing 9, Fig. 1, carrying a ring gear 8 meshed by planet gears carried by the impeller 11 of an hydrodynamic torque converter 5. The planet gears mesh a sun-gear 12 mounted through a one-way detent 16 on a stationary casing 17. A fluid coupling 7 is filled to give a virtually direct drive through the input casing 9 and the sun-gear 12 to the torque converter impeller 11, the one-way detent 16 then overrunning. When the fluid coupling 7 is empty, the one-way detent 16 takes the reaction from the sun-gear 12 and the impeller 11 is driven through the planetary gearing at a reduced ratio from the input shaft and the casing 9. The reactor 18 of the hydrodynamic torque converter is mounted through a one-way detent 19 upon the casing 17, and the turbine 22 is fast with a shaft 23. In a modification, the fluid coupling 7 is replaced by a multidisc clutch 24, Fig. 2, engaged to lock the planetary gear for direct drive, and the one-way detent 16 is replaced by a brake 26, engaged when the clutch is disengaged to hold the sungear 12 stationary for the step-down ratio. The fluid coupling 7 is emptied or the multidisc clutch 24 is disengaged by kick-down of the motor-car accelerator pedal. The planetary gear then given its reduce ratio, and maximum acceleration is obtained. The shaft 23 fast with the torque converter turbine 22 is connected in series with a two forward and one reverse ratio planetary gear comprising a sun-gear 28, Fig. 3, meshing stepped planet gears 34 also meshing a sun-gear 31 and a ring gear 37, the planet carrier being fast with an output shaft 33. The ratios are obtained by selective engagement of a multidisc clutch 30, a brake 32 and a brake 36.
Patent GB-1287519-A (GB)
Title: Flame retardant compositions
IPC: C08L67/00
Filed: 1970-06-29
Abstract: 1287519 Laminated products F M C CORP 29 June 1970 [30 June 1969] 31375/70 Heading B5N [Also in Divisions C3 and H1] In the examples, laminates are prepared by (4) impregnating woven glass cloth with a curable fire resistant composition comprising the reaction product of chlorinated terphenyl and diallyl(iso)phthalate, diallyl phthalate monomer and prepolymer, dicumyl peroxide and acetone, cutting the cloth into squares and stacking these with the warp yarns parallel, and the impregnated laminated cured under pressure; (6) impregnating woven glass cloth as in (4), but replacing the terphenyl reaction product with chlorinated terphenyl itself, and curing the laidup laminate in a vacuum bag; (8) impregnating glass cloth with a composition comprising chlorinated terphenyl, diallyl isophthalate prepolymer and monomer, a polyphenylene ether resin, dicumyl peroxide and acetone, and laminating and curing as in (4); (9) impregnating glass cloth with a composition of polyphenylene ether polymer, chlorinated terphenyl, diallyl isophthalate, Al 2 O 3 , and dicumyl peroxide, and producing a laminate in a vacuum bag as in (6); (10) impregnating glass cloth as in (8), preparing the laminate lay up, which is then laminated on each side with copper foil, and curing to produce a copper-clad laminate, and (11) preparing a copper clad laminate as in (10), but using an impregnating composition comprising a polyphenylene ether polymer, diallyl isophthalate prepolymer, diallyl phthalate, chlorinated terphenyl, Al 2 O 3 , and dicumyl peroxide in methyl ethyl ketone.
Patent GB-1314220-A (GB)
Title: Process for producing ammonium metatungstate
IPC: C01G41/00
Filed: 1970-06-30
Abstract: 1314220 Ammonium metatungstate GTE SYLVANIA Inc 30 June 1970 [30 June 1969] 31711/70 Heading C1A Ammonium metatungstate (NH 4 ) 6 H 2 W 12 O 40  is produced by contacting an aqueous solution of (NH 4 ) 2 WO 4  at a pH of at least 9 with an organic extractant comprising an alkylphosphoric acid and a water-insoluble hydrocarbon in a volume ratio of 1 : 2 to 8 : 1 to extract NH 4 <SP>+</SP> ions from the aqueous solution and lower its pH to 4À5 or below, separating the phases, and heating the aqueous solution at at least 60‹ C. for at least 1 hr. The extractant preferably contains di-2-ethylhexyl phosphoric acid with kerosene or toluene, and also a trialkylphosphate, e.g. TBP. The volume ratios may be 80 : 10 : 10 to 49 : 49 : 2 resp, and the organic : aqueous ratio 30 : 1 to 1 : 2. The initial solution may contain 100-200 g/l. WO 3 . The organic solution after separation may be filtered, stripped in three stages with 0À4- 4N HCl, filtered, and recycled. The product may be evaporated to dryness.
Patent GB-760558-A (GB)
Title: Improvements in or relating to protective helmets
IPC: A42B3/06
Filed: 1954-11-03
Abstract: 760,558. Helmets. EVANS, T. I. Nov. 3, 1954, No. 31743/54. Class 63. A helmet comprises an outer shell 1 of light metal or moulded fibre board or pulp having on its skirt spaced inwardly directed projections or, as shown, an inwardly projecting rib 2 which is located between ribs 3, 5 forming an annular channel on an inner metal ring 12. The ring 12 is lined with foam rubber 6 and a sweat band 7 and is carried by a harness 9. The shell 1 is carried on the ring 12 by coil springs 4 located between the ribs 2, 3 so that the shell 1 moves downwardly over the ring 12 against the action of the springs 4 when the helmet receives a blow. The straps 9 of the harness are secured to the ring 12 via coil springs 8 which are so stiff relatively to the springs 4 that they are extended only after the springs 4 have been excessively compressed.
Patent GB-505985-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J5/28
Filed: 1937-11-18
Abstract: 505,985. Pipe joints. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 18, 1937, No. 31762. Convention date, Nov. 19, 1936. [Class 99 (i)] [Also in Groups. XL and XXll] In a discharge device having an envelope comprising a number of cylindrical sections connected by demountable joints, each joint includes a metal ring 25 secured to one envelope section 26 and having a continuous slot 28 therein for receiving the conforming edge 31 of an adjoining section 34, thermoplastic sealing material being retained in the slot and softened by a heating element 36 supported in good heat-exchanging relation with the matal ring. The heating element may be an electrical resistance heater of the type described in Specification 144,767, [Class 37], permanently or removably mounted on the ring, or it may comprise a conduit adapted to receive fluid at a high temperature. The thermoplastic materials may be solder or wax. If solder is employed and the edge 31 is of ferrous metal the end 32 may be tinned. Specification 224,335, [Class 39 (i)], also is referred to.
Patent GB-210715-A (GB)
Title: Improvements in machines and methods for manufacturing tubes and other hollow bodies from pulp
IPC: D21J3/00
Filed: 1922-07-22
Abstract: 210,715. Marks, E. C. R., (Brown Co.). July 22, 1922. Moulding pulp tubes.-Moisture expressed from a web of pulp which is being wound under pressure on a mandrel to form a pipe &c. is removed both by absorption and suction to prevent weakening of the web in the vicinity where pressure is applied. The pulp is carried to the mandrel M, on which it is to be wound, by a continuous wire apron d passing around a cylinder e in the stuffchest V. Part of the moisture in the web is pressed out between pressure rollers h, h, and is prevented from accumulating by an endless sheet of absorbent felt f, fed along on the same path, and by adjacent suction chambers g, g<1>, the latter of which serves also to draw the pulp on to the sheet f. The paths of the apron d and sheet f diverge adjacent the lower press-roll, the apron passing over the guide-roll i while the sheet f with the partly dried pulp passes between the mandrel M and the lower press-rolls a, a<1>. Further moisture, expressed during the winding of the pulp round the mandrel M between the upper and lower press-roll or rolls, is removed by a suction chamber 35 acting against the laterally grooved surface of the press-roll a and by another endless sheet of felt 40 guided between the upper press-roll b and the mandrel M. The moisture absorbed by the sheet 40 is pressed out between rolls 41 and is drained away to a trough 42, thus maintaining the absorbent quality. Specification 210,716 is referred to.
Patent GB-928154-A (GB)
Title: New benzimidazoles
IPC: A61K31/00
Filed: 1959-09-21
Abstract: The invention comprises compounds of the general formula <FORM:0928154/IV(a)/1> (wherein A represents an alkylene radical, R a di(C1-5 alkyl)-amino group or an alkyleneimino group which may be interrupted by a hetero atom, R1 a hydrogen or halogen atom or an alkyl or nitro group, R2 a hydrogen atom or an alkyl, aralkyl, alkanoyl, aroyl, alkoxycarbonyl or alkoxycarbonylalkyl group, and R3 a hydrogen atom or an alkoxy group) and their physiologically tolerable acid addition salts, and pharmaceutical preparations comprising these compounds in admixture or conjunction with a pharmaceutical carrier suitable for enteral, parenteral or topical administration.  The compounds may be made by reacting an appropriate 2-phenylaminobenzimidazole, or a metal derivative thereof, with a reactive ester of an alcohol HO-A-R, or by reacting a 2-(R-A)-aminoaniline with a phenylcarbamic acid derivative (e.g. a diphenylurea, -thiourea, -S-substituted-isothiourea or -carbodiimide).  If the product is one in which R2 is hydrogen, it may be treated to introduce a substituent corresponding to one of the other meanings given for R2, whilst a resulting acid addition salt may be converted into the free base or vice versa.  S-Methyl-symdi-(p-alkoxyphenyl)- isothioureas are prepared by refluxing p-anisidine or p-phenetidine with carbon disulphide and sulphur in alcohol, and refluxing the resulting sym-di-(p-alkoxyphenyl)-thiourea with dimethyl sulphate in acetone.  2-(p- Methoxyphenylamino)- benzimidazole is prepared by heating o-phenylenediamine with S-methyl-sym-di-(p-methoxyphenyl)-isothiourea.  Its N-acetyl derivative is prepared by boiling it with acetic anhydride and glacial acetic acid.  The pharmaceutical preparations, which have analgesic and muscle relaxant action, may take the form of tablets, dragees, salves, creams, solutions, suspensions or emulsions.