baber/WOPTO huggingface dataset:
Patent GB-655580-A (GB)
Title: Improvements in or relating to a process for the preparation of alkanolamines
IPC: C07C215/12
Filed: 1948-08-17
Abstract: Alkanolamines are made by treating olefine oxides with ammonia in aqueous solution, there being added prior to the reaction a quantity of the primary alkanolamine whose formation it is desired to suppress or reduce which is greater than the quantity of the same formed at equilibrium by a given ammonia/oxide ratio without said prior addition and is proportional to the quantity of ammonia used under the same conditions.  Ethylene and propylene oxides are specified and when the former is used the quantity of monoethanolamine to be added so that di- and tri-ethanolamines are the sole products is 0.39, 0.65 and 1.3 mols. for molar ammonia/oxide ratios of 3/1 , \ba5/1 and 10/1 respectively.  Any excess of monoethanolamine added above that required to suppress its formation is transformed into di- and tri-ethanolamine.  If quantities of monoethanolamine less than those above mentioned are added a mixture of three amines is formed the proportion of primary amine being lower than that obtained at equilibrium.  A diagram is provided of the equilibrium.  The ratio of the mean monoethanolamine concentration required, obtained by prior addition of that compound, to the mean ammonia concentration is stated to be the ratio of the constants of the speed of reaction of ethylene oxide with ammonia and with monoethanolamine under the given reaction conditions.  A graph is given showing the quantity of monoethanolamine to be added for suppression with various ratios of ammonia to ethylene oxide.  Superatmospheric pressure may be used. The invention is illustrated by five examples in which various quantities of ethylene oxide are reacted at 15 DEG  C. and ordinary pressure with 0.92 aqueous ammonia solution in the presence of various quantities of added monoethanolamine. Specification 642,950 is referred to.
Patent GB-287776-A (GB)
Title: Improvements relating to pressure fluid relief valves
IPC: G05D16/10
Filed: 1927-08-18
Abstract: 287,776. Fitzpatrick, H. D., (Marquette Tool & Manufacturing Co.). Aug. 18, 1927. Safety valves; check lift valves; rotary d i s c valves. -A spring loaded relief valve is provided with a, check valve arranged to permit a reverse flow when put into operation by means of a manually actuated rotary disc valve controlling the same passage. The ported rotary disc 29 has a hollow spigot 28 rotatable in a bearing 13 secured to the valve, casing 10 and has peripheral teeth 38 engaged by a toothed wheel 37 rotatable by a handle 39. The relief valve member 16 which co-operates with a seat 30 on the disc is adjustably loaded by a spring 27 arranged between an abutment 25 on the valve spindle 18 and an abutment 26 adjusted by a screw 23 engaging a bridge supported by pillars 22. The non-return valve comprises an annular ring 33 held to a seat on the underside of the bearing 13 by springs 36 mounted on guide bolts 34.
Patent GB-866404-A (GB)
Title: Terminal-depolarizer unit for primary electric cells
IPC: H01M6/06
Filed: 1959-06-25
Abstract: 866,404. Batteries. SERVEL Inc. June 25, 1959 [June 26, 1958], No. 21823/59. Class 53. A primary cell has a depolarizer 3 in the form of a pellet which is inserted in a metal cup 2 forming the positive terminal. To ensure good contact between the pellet and cup they are bonded together by a layer 7 of a conductive composition which consists of finely-divided metal or graphite dispersed in wax. The composition is applied in the molten state to the two parts and allowed to cool and set. The metal consists of silver or of copper or other metal coated with silver. The depolarizer 3 consists of an oxide of mercury, silver, copper, manganese or nickel mixed with graphite. Above the depolarizer is a barrier disc 4 of parchment paper, porous vinyl resin, magneium oxide or silicate. A porous separator 5 rests on the disc 4 and is moistened with a solution of an alkali hydroxide which may contain dissolved zinc or aluminium oxide. A compressed powdered zinc anode 6 is in contact with the head 8a of a rivet 8 made of steel coated with tin, zinc or nickel. The rivet passes through a seal comprising a layer 9a of semi-rigid material such as a resin reinforced with glass fibre, and a resilient layer 9b. The seal closes the cup 2 and is enclosed in an outer cup 1 the open ene of which is crimped round the lower end of cup 2. U.S.A. Specifications 2,702,756 and 2,771,380 are referred to.
Patent GB-783532-A (GB)
Title: Improvements in ovens, furnaces and other heating devices
Inventor: CROSS ROLAND CLAUDE
IPC: C21D9/56
Filed: 1954-07-27
Abstract: 783,532. Heat-treatment furnaces. CROSS MANUFACTURING CO. (1938), Ltd. Sept. 30, 1955 [July 27, 1954], No. 21880/54. Class 51(2). In a heat-treatment furnace for wire, rods, &c., the heating chamber 5 is heated indirectly from a muffle chamber 3 to which waste gases from a petrol engine or diesel engine 8 is supplied through a pipe 9, the pressure in the muffle chamber 3 being controlled by a spring-pressed relief valve 12. In a modification, Fig. 2 (not shown), air and fuel under pressure is supplied to the muffle 3. Another modification, Fig. 3 (not shown), comprises a muffle-heated continuous furnace for wire, in which the wire extends through a plug at each end. A final modification, Fig. 5, has compressors 35 and 36 for air and fuel respectively supplying the heating chamber through a duct 37 in which combustion takes place.
Patent GB-438674-A (GB)
Title: Process for crushing material in jaw breakers
IPC: B02C1/04
Filed: 1934-07-26
Abstract: 438,674. Crushers with vibrating jaws. JACKSON, L. MELLERSH-, 28, Southampton Buildings, Chancery Lane, London.-(Krupp Grusonwerk Akt.-Ges., F. ; Buckau, Magdeburg, Germany) July 26, 1934, No. 21904. [Class 59] A process for crushing material in vibrating jaw crushers comprises adjusting the length and speed of stroke of the rocking jaw so that the jaw becomes detached from the material during the opening stroke, particularly in the centre and lower part of the breaking space, and strikes against the material with impact during the breaking stroke. The speed of the driving shaft exceeds 300 r.p.m. and the stroke of the movable jaw is a multiple of the narrowest gap width. As shown in the Figure, the moving jaw 10 is pivoted at 13 and is oscillated at its lower end by a lever 14, 15 pivoted at 16, the arm 14 being connected to the jaw by a thrust-bar 12 held in contact by a spring 24, the other arm 15 carrying a wheel 18 bearing on a rotating cam 20 and maintained in contact by a spring 27. In a modification, a substantially vertical moving jaw crusher is pivoted at its upper end and is oscillated by an eccentric contacting with its lower end. Reference has been directed by the Comptroller to Specifications 11983/87, 1366/93, 2577/03, [all in Class 59], 348,851, and 409,644.
Patent GB-1218897-A (GB)
Title: Brushless direct current motor
IPC: H02P6/08
Filed: 1969-04-30
Abstract: 1,218,897. Electric motors. SUWA SEIKOSHA K.K. 30 April, 1969 [30 April, 1968], No. 22000/69. Heading H2A. In a D.C. brushless motor including two sets of permanent magnets 4-9, 10-15, mounted on spaced apart yokes 2, 3 secured to a rotatable shaft 1, three driving coils 17, 18, 19, each controlled by at least one rotor position sensing coil 25-30, are mounted on an insulating base 52, Fig. 2 (not shown) disposed in the air gap between the two sets of magnets, the base having a notch (53) in which the shaft is rotatably located. In the motor shown, two of the driving coils 17, 19 are disposed 100 degrees on opposite sides of the third coil 18. The magnets of each set are of alternate N and S polarity and a N pole on one set faces a S pole on the other. The rotor position sensing coils are arranged in axially aligned pairs 25, 26 and 27, 28 and 29, 30 of circumferential spacing 40 degrees, Fig. 4 (not shown), the coils of each pair being located on opposite sides of a conductive, e.g. aluminium plate 31 having three equispaced cut-outs 32 each of arc 40 degrees. The sensing coils control oscillators 68, 69, 70, Fig. 5 (not shown) which feed the driving coils through demodulators (71, 72, 73) and power amplifiers (74, 75, 76).
Patent GB-967368-A (GB)
Title: Improvements in and relating to lever lock and circuit controller units
Inventor: ROBERTS CHARLES GEORGE
IPC: B42B2/02
Filed: 1961-06-19
Abstract: 967,368. Lever lock and circuit controller assemblies. TYER & CO. Ltd. Aug. 23, 1962 [June 19, 1961], No. 22008/61. Heading B7N. A railway signalling lever lock and circuit controller assembly connected to a signal or points operating lever via a slide 6 comprises a base unit 1 accommodating the slide and separate lever lock and circuit controller units 19, 10 respectively, releasably mounted on the base unit by engagement of projections 20 on the base with recesses 21 on the units. The units are further secured by screwthreaded members 22 and electrical connection of the units to the base is by plug and socket which interconnect as the units are mounted in position. The lever lock unit includes an armature which falls away and locks the slide in position, to prevent operation of the associated lever, when its coil is de-energized. The circuit controller includes a rotary switch, via which the signal or points operating circuits are energized, which is operated by axial movement of the slide. This movement is transmitted to the switch via a rack 8 and a pinion 9, which drives the switch, and oblique slot in the slide which engages a projection on the rack.
Patent GB-535172-A (GB)
Title: Improvements in or relating to apparatus for emptying sealed metal containers
IPC: B67B7/48
Filed: 1939-07-29
Abstract: 535,172. Emptying and cleansing cans. HEINZ CO., Ltd., H. J., and SNEESBY, C. July 29, 1939, No. 22083. [Class 21] [Also in Group XXVIII] Cans 22, Fig. 1, containing liquid, semi - liquid, or pulp-like material are carried intermittently by a chain 38 along supporting bars 45 to a position between upper and lower piercing heads 23, 24 actuated by rocker arms 64, 152 from cams 50, 61, to pierce the top and bottom of the can. The upper piercing head shown in Fig. 4 has channels 90 through which pressure fluid for ejecting the contents through the lower piercing head shown in Fig. 7 is passed. The contents pass through a channel 126 while vent air enters through a channel 121. The position of the pivot 71, Fig. 1, of the rocking arm 64, and therefore the throw of the piercing head is adjustable through a rod 74. After withdrawing the contents, the heads 23, 24 may be used for introducing and conveying away washing liquid., A hand-actuated modification is described.
Patent GB-1375207-A (GB)
IPC: D01F6/60
Filed: 1971-09-02
Abstract: 1375207 Polymerizing 2-pyrrolidone ALRAC CORP 2 Sept 1971 [3 Sept 1970] 22089/74 Divided out of 1375206 Heading C3A A process for producing polymers of 2- pyrrolidone comprises adding to a mixture of 2-pyrrolidone and an alkaline polymerization catalyst apreformed adduct of CO 2  and an alkali metal or quaternary ammonium salt of 2- pyrrolidone or of caprolactam and then effecting polymerization in the presence of the catalyst and adduct. Various suitable catalysts and other promoters which optionally may be additionally used are listed. The claims of the present Specification are directed solely to the process while products which may be obtained by such process are claimed per se in Specification 1,375,206 in terms of a test for their meltspinnability. Reference is also made to Specification 1,267,446.
Patent GB-1182755-A (GB)
Title: Improvements in or relating to Speed Changing Devices
IPC: F16H49/00
Filed: 1968-05-10
Abstract: 1,182,755. Toothed gearing. UNION SPECIAL MACHINE CO. 10 May, 1968 [12 May, 1967], No. 22184/68. Heading F2Q. [Also in Division D1] An intermittent drive for a cloth feed wheel 48 of a sewing machine comprises a driving shaft 20 geared to the input shaft 41 of a " strain type " reduction gear 47 having a flexible plastics output gear 74 rolled round an annulus 83 by an input driven wave generator 77, 78, and an eccentric 30 on the driving shaft 20 oscillates the annulus 83 whereby the oscillation is superimposed on the rotation of the gear 74 to provide a cyclic intermittent drive to an output shaft 44 carrying the wheel 48. The amplitude of oscillation of the annulus 83 is one-half of the rotation of the gear 74 caused by one complete rotation of the driving shaft 20. The eccentric 30 may be adjustable of the type described in Specification 676,955 and is connected to the annulus 83 by arms 61, 93 respectively fast with an eccentric strap and the annulus. In Fig. 8 (not shown) a fixed eccentric is connected to the annulus by adjustable arms. The shaft 20 is driven from an electric motor 25 and is geared to the shaft 41 by toothed or belt gearing.
Patent GB-266233-A (GB)
Title: Improvements relating to gas heated cooking apparatus
IPC: F24C3/08
Filed: 1926-09-10
Abstract: 266,233. Radiation, Ltd., and Yates, H. J. Sept. 10, 1926, Grilling-stoves; baffles. - To prevent the combustion products from the grilling-burner c of a gas stove from interfering with the combustion of an adjacent boiling-burner e a baffle b is provided along the edge of the grill fret a, extending above and below the fret and adapted to deflect the gases away from the burner e. A space d is left between the baffle and fret in the construction shown.
Patent GB-598131-A (GB)
Title: Improvements in or relating to means for lubricating the driving mechanism of superchargers for internal-combustion engines
IPC: F02B33/00
Filed: 1945-08-30
Abstract: 598,131. Lubricating. BALLAMY, L. M. Aug. 30, 1945, No. 22393. [Class 7 (ii)] The casing of a blower is connected to the crankcase, so that when the engine is running with, the blower out of action, oil mist is drawn in and the driving mechanism is lubricated. A Rootes blower is shown in which the rotors 14, 15 are connected by gearing 21, 22, 23, 24 and driven through a clutch 20. The casing is connected by piping 34, 35 with a crankcase 32 through a non-return valve 33, or a valve mechanically actuated with the clutch. The application is also described to a rotary vane blower connected to the crankcase by a passage extending axially through the rotor.
Patent GB-706358-A (GB)
Title: Improved means for screening or grading materials
Inventor: SMITH WALTER ARTHUR
IPC: B07B13/07
Filed: 1951-09-25
Abstract: 706,358. Sifting apparatus. CHARROLD, Ltd. Sept. 23, 1952 [Sept. 25, 1951], No. 22421/51. Class 117. A screen of the type which is provided with a plurality of pusher elements 14 mounted on endless chains 6 which feed the material along the screen comprises a plurality of co-extending tapered members 3 so spaced that slots defined between them gradually increase in width from the feeding end to the discharge end of the screen. The pusher elements may be provided with means to pass between the slots to dislodge any lumps of material which are wedged therein and as they are carried along the lower runs of ' the chains 6 they may be scraped by resilient members supported between the upper and lower runs of the chains, Fig. 4 (not shown). The transverse supporting members 3<SP>2</SP> of the screen may be fixed, or may be mounted on a vibrating mechanism, Fig. 5, comprising a pair of spaced. horizontal frame members 22 mounted between the upper and lower runs of the chains 6 on the side plates 2 and carrying a pair of pivotally mounted rocker arms 24. Each rocker arm carries a block 25 which receives a screwthreaded rod 26 which passes through the side plate 2 and is adjusted by a handle 27. At its inner end each rod is provided with a head 28 slidably disposed in a cylindrical recess 29 in a link 30 and urged outwardly by a spring 31, the links 30 being pivotally connected to lugs at opposite ends of a supporting member 3'. Each of the rocker arms 24 has a downwardly extending arm 33 (only one shown) carrying a rotatable wheel 34 which bears against the rollers of the chain 6. The movement of the arm 33 imparts a transverse vibration to the screen, the supporting members 21 being provided with transverse slots and the sieve being suported by suitable bots 35, nuts, and spring washers to allow free movement of the bolts in the slots. A plurality of such screens may be arranged end to end. Specification 687,435 is referred to.
Patent GB-518075-A (GB)
Title: Improvements in or relating to aluminium alloys
IPC: C22C21/12
Filed: 1938-07-29
Abstract: 518,075. Alloys; annealing. CLARKE, H. W., and AITCHISON, L. July 29, 1938, No. 22561. [Classes 72 and 82 (i)] An aluminium alloy contains 2.1-4 per cent. of copper, 0.2-2 per cent. of magnesium, 0.2- 1.5 per cent. of nickel, 0.7-1.5 per cent. of iron, 0.2-0.49 per cent. of silicon, and from a trace to 0.25 per cent. of titanium, with or without up to 0.25 per cent. of manganese. The alloy may be quenched from 510-535‹C. and reheated at not over 200‹C.
Patent GB-222300-A (GB)
Title: Improvements relating to hydraulic change speed gears
IPC: F01B3/00
Filed: 1923-09-07
Abstract: 222,300. Smith, R. J., and Smith, J. B. Sept. 7, 1923. Cam-actuated pumps.-In a hydraulic changespeed gear comprising a. pump and motor, a double universal joint is provided in the peripheral driving connection between each hydraulic unit and its socket ring. In the form shown in Fig. 1, the socket ring a has trunnions b, c entering enlarged and recessed parts of a ring d, the ring a being capable of limited angular movement relative to the ring d against the action of springs f, g. The hydraulic unit has extensions j provided with trunnions h, i similarly mounted in the ring d. In the form shown in Fig. 3, the ring a is trunnioned at n to a ring p provided with trunnions b, c having shoes q, r fitting in recesses in the ring d. Specification 203,867, [Class 69 (ii), Hydraulic presses &c.], is referred to.
Patent GB-517487-A (GB)
Title: Improvements in or relating to answer back devices associated with printing telegraph apparatus
IPC: H04L12/06
Filed: 1938-07-29
Abstract: 517,487. Type-printing telegraphy. CREED & CO., Ltd., and SALMON, R. D. July 29, 1938, No. 22638. [Class 40 (iii)] In a combined transmitting and receiving teleprinter in which an answer-back device is released by the energization of an electromagnet, means, operative on the actuation of the who are you " key, is provided to hold the armature of the electromagnet in the unattracted position. By suitable selector mechanism, not described, the receipt of a " who are you signal causes energization of an electromagnet 23 which withdraws a latch 9 from an arm 10 fixed on a pivoted rod 11 which moves in a clockwise direction under the action of a spring 20. The movement is communicated to a link 13 which thereupon withdraws a detent 14 from a stop wheel 15 mounted on a shaft 24 carrying suitable cams for sending the answer-back signal. After one revolution of the shaft 24 a resetting cam 21 engages an arm 22 and restores the mechanism to its original condition. When a " who are you " signal is to be sent, the appropriate key 1 is depressed and acts on the code bars to send the appropriate signal. At the same time an extension 2 on the key bar turns a rod 4 clockwise and so raises a detent 6 to engage a rod 7 fixed to the armature 8. Thus the armature 8 is held in the unattracted position and the transmission of the answerback signal is prevented. In cases where the release of the answer-back device is effected mechanically, in addition to electromagnetically, as by operation of a selector bar 16, the movement of this bar may be communicated to the latch 9 by means of a pivoted lever 17. Specifications 228,842, [Class 40 (iii)], and 498,416 are referred to.
Patent GB-850226-A (GB)
Title: Improvements in or relating to motor cycle wheels and the like
Inventor: TURNER EDWARD
IPC: B60B1/00
Filed: 1956-07-21
Abstract: 850,226. Wheel hubs; internal shoe-drum brakes. TRIUMPH ENGINEERING CO. Ltd. May 27, 1957 [July 21, 1956], No. 22648/56. Classes 103 (1) and 144 (1). A motor cycle wheel hub comprises a radially outer cylinder 1 which anchors the spokes 6, 7, supported coaxially on a radially inner cylinder 14, which receives the wheel spindle 16, by means of two separate annular dished or conical pressings 17, 18, the outer peripheries of which are connected, as by riveting, to opposite sides of a radially inwardly directed flange 12 of the outer cylinder and the inner peripheries 19, 21 of which are connected respectively, as by welding, to adjacent the ends of the inner cylinder 14. As shown the inner cylinder 14 houses bearings 15 for the spindle 16, and the outer cylinder 1 is externally ribbed for strength or for cooling purposes. The spokes 6, 7 are straight and anchored in holes 5 in slightly inclined flanges 8, 9 of the outer cylinder, but in an alternative arrangement bent spokes are anchored to radial flanges of the outer cylinder. One face of the hub is closed by an annular disc 31 having lipped inner and outer peripheries which spring respectively on to the inner cylinder 19 and a radial end flange 9 of the outer cylinder 1. The side of the cylinder 1 remote from the cover disc 31 provides a brake drum for an internal shoe brake, the shoes 11 of which are carried on a brake plate 23 and operated through a lever 29. The brake plate 23 is secured on the spindle 16 by a nut 28 and is held against rotation by engagement of a lug 24, on the wheel mounting fork 25, between ears 26 on the plate 23. The outer periphery 30 of the brake plate 23 is axially flanged to overlie the adjacent radial end flange 8 of the outer cylinder 1.
Patent GB-746672-A (GB)
Title: Improvements in or relating to timing equipment
Inventor: BRAY FREDERICK HARRY
IPC: H03M7/08
Filed: 1952-09-19
Abstract: 746,672. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd. Aug. 17, 1953 [Sept. 19, 1952], No. 22653/53. Divided out of 746,666. Drawings to Specification. Class 40 (4). Means for timing the duration of a condition comprises a store which is scanned cyclically and counts the number of successive scans while the condition persists, the result of the count representing the time for which the condition persists. The description and drawings are included in Specification 746,666 from which this Specification is divided. Specification 744,352, [Group XIX], also is referred to.
Patent GB-261140-A (GB)
Title: Improvements in filtering apparatus
IPC: B01D33/06
Filed: 1925-09-11
Abstract: 261,140. Keene, E. W. W. Sept. 11, 1925. Rotary filters. - A number of wire strands e are stretched across the drum or like rotary members over the filtering medium so as to hold the medium in place and protect it from abrasion by the scraper which removes the cake. The wires may be fixed by means of flanges on the drum ends or rings as described in Specification 218,447. The ends of the wires are passed through inwardly inclined slots b in the flange a and are screw-threaded to receive washers and nuts h, which engage recesses formed in the flange at the outer ends of the slots.
Patent GB-169156-A (GB)
Title: Improvements in ordnance
IPC: B64D1/06
Filed: 1921-08-26
Abstract: 169,156. R÷sner, K. F. M. Sept. 13, 1920, [Convention date]. Mountings for use on aircraft; field carriages. - Ordnance, such as a field gun or mine-thrower, is mounted on wheels or floats fitted with an aeroplane structure so that the gun can be readily transported and fired on the ground or on the surface of water. Fig. 2 shows a field carriage b, the wheels c of which form the landing chassis of an aeroplane f.