baber/WOPTO huggingface dataset:
Patent GB-1346131-A (GB)
Title: Two step solid state battery charger
Inventor: HAMMEL R O
IPC: H02J7/00
Filed: 1972-03-21
Abstract: 1346131 Battery charging systems GATES RUBBER CO 21 March 1972 [26 March 1971] 13121/72 Heading H2H A battery charging system wherein charging current is supplied to a battery by way of a semi-conductor switching device is provided with a controlled rectifier across the supply and responsive to the battery voltage, the controlled rectifier gating on earlier in the half cycles of the supply as the rectifier becomes heated whereby to automatically reduce, and finally terminate, the charging process. A battery B1 is charged from an A.C. source by way of a transformer T1, a control transistor Q1 and a half wave diode CR1, the control bias for the transistor Q1 being developed by a resistor R2. As the battery approaches its fully charged condition, the potential on the slider 18 of a potentiometer R5 connected across the battery reaches a value sufficient to gate on a thyristor SCR1, initially for a portion of a half cycle of the A.C. supply thereby diverting part of the current supplied by the A.C. source from the battery. The current flow in the resistors R2, R3 in series with, and in physical proximity to, the thyristor SCR1 heat up and hence raise the temperature of the thyristor. The rise in temperature of the thyristor causes the gating on potential requirement to be reduced. Thus as the thyristor heats up it fires earlier in the half cycles of the A.C. source until a point is reached where the thyristor conducts for approximately a full half cycle. Thus the charging current gradually reduces as the thyristor SCB1 heats up until a point is reached when the charging process is terminated. Trickle charging current is provided by a resistor R4 in parallel with the transistor Q1. The transistor may be replaced by a thyristor and the half wave diode CR1 by a full wave rectifying device.
Patent GB-938108-A (GB)
Title: Phosphono esters of organic acids
IPC: C07F9/40
Filed: 1961-04-12
Abstract: A polyvinyl chloride composition contains as plasticizer an ester or esters having the formula:- <FORM:0938108/IV(a)/1> in which Q is a methylene chain of 2 or 3 methlene groups which may be substituted by a methyl group, n is an integer from 0 to 12 and R is an alkyl, substituted alkyl, or aryl group (see Group IV(b)).  Specified R groups are methyl, ethyl, butyl and 2-ethyl hexyl and specified values for n are 0, 2, 4, 7, 8 and 12.ALSO:The invention comprises esters of the formula:-  <FORM:0938108/IV(a)/1> wherein Q is a methylene chain of 2 or 3 methylene groups which may be substituted by a methyl group, n is an integer from 0 to 12 and R is an alkyl, substituted alkyl, or aryl group.  They may be obtained by reacting a dialkyl, di(substituted alkyl) or diaryl phosphite (RO)2.P(H)-->O with a diester of the formula X-O-C(O).(CH2)nC(O).-O-X wherein X is an alkyl radical of 2 to 4 carbon atoms and n is an integer from 0 to 12 with the aid of a free radical initiator.  The free radical initiator is preferably a peroxide such as tertiary butyl perbenzoate, benzoyl peroxide or azobisisobutyronitrile but other free radical initiators such as ultraviolet light or thermal activation may also be used.  The reaction is conveniently carried out under a layer of inert gas, e.g. nitrogen and suitable reaction temperatures are from about 100 DEG  to 110 DEG C. Examples are given for the production of esters of the above formula in which n is 0, 1, 2, 4, 7, or 8 and each R is methyl, ethyl, butyl, and 2-ethylhexyl respectively and also of the ester in which n is 12 and R is 2-ethylhexyl. The products are useful as plasticisers for polyvinyl chloride resins (see Group IV(a)) and as functional fluids and lubricant additives.
Patent GB-166768-A (GB)
Title: Improvements in self-centring chucks
IPC: B23B31/12
Filed: 1920-05-15
Abstract: 166,768. Taylor (Birmingham), Ltd., C., and Taylor, G. B. May 15, 1920. Chucks.-Secondary work-grips are mounted in the jaws of self-centring chucks, The screw-plugs g, operated independently by hand-keys, are fitted with ball-seated snap-on gripping-pieces g<4> and are mounted in the steps of the radial camclosed jaws d. The faces d<2> of the jaws may also be fitted with a secondary grip, Fig. 5, in which case the pressure is applied through an intermediate piece g<3>. The screw-plugs g, when set for self-centring action only, are frictionally locked by spring-pressed pins l released by camspindles o, Fig. 7.
Patent GB-134963-A (GB)
IPC: F23D14/30
Abstract: 134,963. Russell, A. C. Nov. 21, 1918. Incandescent g a s burners.-An inverted gas burner E, with its reflector and hood F, is detachably s u s - pended by arms D from vertical slots in the gas nipple A, so that it is free to swing if struck. A short sleeve may be screwed on the nipple so as to regulate the air admission to the burner E.
Patent GB-557927-A (GB)
Title: Improvements in fire and other alarm devices
Filed: 1942-09-25
Abstract: 557,927. Thermal switches. CADE, G. Sept. 25, 1942, No. 13502. [Class 38 (v)] A temperature alarm comprises an expansible fluid-containing capsule 1 adapted to rotate a lever 7 clockwise to bring a contact 10 thereon against a contact 16 on a second lever 17, and on further expansion, to bring a contact 28 on the second lever 17 into engagement with. a contact 29 on a bracket 30. Levers 7, 17 are subject to springs 14, 26, and 17 is restrained by a wad 36 of materials that melts or deforms when heated, so as to provide a further safety measure if the capsule fails. A bent spring wire 21 on the adjustable screw 20 shows the temperaturesetting on a scale 22. The leads 12 to the contacts are passed through holes in pins 11 and pressed into contact with the levers 7, 17 by the springs 14, 26.
Patent GB-807706-A (GB)
Title: Improvements in or relating to refrigeration systems
IPC: F25B1/053
Filed: 1957-04-29
Abstract: 807,706. Refrigerating. CARRIER ENGINEERING CO. Ltd. April 29, 1957 [Nov. 2, 1956], No. 13631/57. Class 29 [Also in Group XXIX] A refrigeration system comprises a compressor, preferably a centrifugal compressor 10, condenser 13, economizer 18 and evaporator 11, a compressor motor 22 surrounded by a housing 70, a passage 23 for vaporized refrigerant between the economizer and compressor through the housing, and flow control means disposed in the passage between the motor housing and the compressor. The control means is preferably a damper 26 connected to a bellows 28 through a linkage 27, the interior of the bellows being connected to the interior of the evaporator through line 29 and the exterior being acted on by economizer pressure. Refrigerant from the condenser flows to a chamber 15 and passes to the economizer through a float valve 40, the valve of which is smaller than the outlet, to the economizer so that refrigerant vapour may flow through in periods of low load. At the inlet to the compressor are vanes 78 of which the angle of incidence to incoming refrigerant may be varied in response to the temperature of cooled liquid flowing through pipes 21. Specification 800,088 is referred to.
Patent GB-898032-A (GB)
Title: Improvements in micro-manipulators
Inventor: HESLOP JOHN PEART
IPC: B25J7/00
Filed: 1959-04-22
Abstract: 898,032. Vices; tongs. NATIONAL RESEARCH DEVELOPMENT CORPORATION April 21, 1960 [April 22, 1959], No. 13652/59. Class 61 [Also in Group XXXII] A device for handling small and delicate articles comprises a pair of forceps 6 or gripping jaws carried on a universally mounted reciprocal arm 5, the angular displacement and reciprocation of the arm being manually operated and resisted by a dashpot consisting of a container 1 filled with a viscous fluid 2 such as petroleum jelly into which the end of the arm 5 projects. The movable parts of the forceps are actuated by fluid pressure which is remotely controlled as by a foot pedal 14. The arm 5, which carries a counterweight 20, is slidable in the ball 3 of a ball and socket universal bearing 3, 4 on the front wall of the container 1. The forceps 6 are releasably clamped in a fork 7 on the arm 5, the lower arm 6a being supported by a stiffener bar 8. The jaws of the forceps are surrounded by a finger ring 9, the clearance between the ring and upper jaw 6b being filled by a rubber sac 10 which is connected to a twoway foot operated valve 12 one circuit 11a through which leads to atmosphere the other 11b leading to a pump or reservoir 13. In a modification the rubber sac encircles the jaws of the forceps.
Patent GB-1023631-A (GB)
Title: Improvements in or relating to steel making
IPC: F27D27/00
Filed: 1964-04-02
Abstract: Steel is manufactured by first blowing the bath with oxygen or oxygen-containing gas, and then after blowing is complete inserting a stirring device (see Division B1) and agitating the bath to complete the metal-slag reactions.ALSO:A stirrer used in the refining of steel consists of a refractory body, preferably of cylindrical form, having in its outer surface longitudinal grooves into which stirring vanes are releasably secured, as by dovetailing.  The body may have a metal core by means of which it is secured to a driving shaft.
Patent GB-101869-A (GB)
Title: Shrapnel Shells.
Inventor: DUNWOODY HENRY HARRISON CHASE
IPC: F42B12/32
Filed: 1916-09-28
Abstract: 101,869. Dunwoody, H. H. C. Oct. 20, 1915, [Convention date]. Projectiles.-Relates to to shrapnel shells of the kind in which an inner and an outer shell are secured to a base-piece, and a bursting charge is contained in the inner shell and is surrounded by rings or segments. According to the invention, the space between the inner and outer shells is considerable and contains a gas generating material in addition to perforated rings which are disposed in the annular part of that space. In the form shown in Figs. 1 and 2. the cylindrical outer surface of the inner shell 3 and the cylindrical inner surface of the outer shell 5 have longitudinal and transverse grooves 8, 9, 12, 13, and the intermediate rings 20 have holes 21 in line with each other and circular and radial grooves 22, 23. A base fuse 2 is provided for the bursting charge 16; and a nose fuse 18 is provided when the gas generating charge 17 is to be ignited. Liquid chlorine and liquid carbonic acid may be used for the gas generating charge, and hydrocyanic acid may be added thereto. In a modification, the grooves in the shells extend to their noses, and the rings 20 are arranged with their holes 21 in staggered formation. The Specification as open to inspection under Sec. 91 (3) (a) describes also the use of an explosive charge in the place of the gas generating charge between the inner and outer shells. This subject matter does not appear in the Specification as accepted.
Patent GB-923697-A (GB)
Title: Improvements in or relating to coating apparatus
Inventor: ROSE HAROLD
IPC: D06B1/04
Filed: 1958-04-30
Abstract: A method of forming a discontinuous coating of a heat-softenable resin on flexible sheet material, e.g. a web 7 of a woven or non-woven textile fabric, comprises applying the resin in solid, divided, freely flowing form to the moving web 7 to form a discontinuous layer of discrete particles, heating the resin sufficiently to make the surface of each particle adhesive, and pressing the heated particles at 16 against the web to bond them thereto.  The web 7 is drawn by a roll 19 round an adjustable tensioning roll 2 and beneath a vertically adjustable doctor blade 4 having a radiused lower edge, see Fig. 2 (not shown), behind which the resin particles are heaped.  An adjustable endless rubber band 8 is located beneath the blade 4.  The tensioned web 7 vibrates on traversing the blade 4 and the particles are thus uniformly distributed in a discontinuous layer on the web 7 which continues on a belt 22a over a table 11 where it is <PICT:0923697/IV(a)/1> heated by steam pipes or electrical heaters 12 and infra red heaters 13.  An adjustable compacting roll 16, which may be chilled, bonds the resin to the web, which is wound up at 22.  The belt 22a and a belt 21 may be replaced by a backing fabric held under tension, or, if the web 7 is non-shrinkable and non-stretchable, the belts 8, 21, 22a may be omitted.  In one modification, the resin is delivered to the web by a vibratory feeding device, the amplitude and/or frequency of which is adjustable, and in another modification, the resin particles are arranged in a predetermined pattern on a band conveyer which discharges the resin off one end on to the moving web. Specification 886,746 is referred to.
Patent GB-1212311-A (GB)
Title: Fluidic diode
IPC: F15C1/08
Filed: 1969-03-18
Abstract: 1,212,311. Fluid regulation. CORNING GLASS WORKS. March 18, 1969 [March 18, 1968], No.14041/69. Heading G3H. [Also in Division G4] In a flow-type fluidic diode, the interaction chamber 24 and passages leading thereto are  machined, etched or grooved in an intermediate  plate 16 which is sandwiched between two plates 12 and 14, the three plates being fused or screwed together and being made of metal, glass, ceramic or plastics. Plate 14 is shown as being transparent. Opposite portions of the chamber are formed with a recessed region 32 and vent passage 34, respectively. In operation, fluid directed into passage 20 adheres to the chamber wall 30, by virtue of region 32, and enters an output passage 22, the latter passage having associated with it vent passages 38 and 40 which render the diode load-insensitive. Alternatively, the diode may be terminated along the line 42 in which case chamber portion 21 acts as a drain. In the event of positive pressure being applied to passage 18, then this, by virtue of the orientation of portion 26 of passage 18, is caused to enter passage 20. If applied to function as a pulse generator, Figs. 3 and 4 (not shown), passage 20 is connected to a capacitive load and passage 18 to a source of pressure, the arrangement being such, that subsequent to the load becoming fully charged, excess flow is drained through vent passage 34. Upon the cessation of the signal at passage 18, the capacitive load discharges through passage 20 and into passage 22, the pressure of the discharge gradually decreasing from the instant of positive signal cancellation at passage 18, (Fig.4).
Patent GB-988769-A (GB)
Title: Aromatic silanes and derivatives
IPC: C07C17/00
Filed: 1961-04-19
Abstract: Compounds of general formula ArfH, where Arf is a radical derived from a compound containing a perfluorinated aromatic ring or a perfluorinated heterocyclic ring having aromatic characteristics are prepared by strong alkaline hydrolysis of silanes of the general formula ArfSiFCl2-nRn, wherein Arf is as above, R is hydrogen, alkyl, aryl, fluoroalkyl, fluoroaryl or fluorine and n is 0, 1 or 2.  The compounds may also be prepared by hydrolysis of siloxanes of general formulae [ArfSiR1O]z, [(Arf)2SiO]z and [ArfSiO1.5]z, wherein R1 is the same as R above but is not fluorine.  Preferred products have the general formula C6Fm- 1H(Rf)6- m, where m is 1 to 6 and Rf is a perfluoroalkyl group, e.g. mono and dihydro perfluorobenzenes.ALSO:The invention comprises compounds of general formula ArfSiFCl2- nRn where Arf contains a perfluorinated aromatic ring, including a perfluorinated heterocyclic ring having aromatic characteristics, R is hydrogen, alkyl, aryl, fluoroalkyl, fluoroaryl or fluorine and n is 0, 1 or 2.  When n is 2 the R substituents may be the same or different. They are prepared according to the general reaction <FORM:0988769/C3/1> which is carried out by irradiation with U.V. light at room temperature or in the presence of initiators, e.g. benzoyl peroxide and azo compounds such as dimethyl azo-diisobutyrate at 50-500 DEG  C.  In presence of excess molar quantities of silane, disubstituted perfluororinated compounds are formed.  The invention further comprises silicones prepared by hydrolysis of the above compounds with water having the general formulae [ArfSiR1O]z, [(Arf)2SiO]z and [ArfSiO1.5]z where z is an integer and R1 is the same as R but is not fluorine.  Specified starting compounds are perfluoro-pyridine, 2,3,4,5,6-pentafluorotoluene and hexafluorobenzene; and specified silanes are dichloro and trichlorosilanes. The silicones and polysiloxanes are further hydrolysed by strong alkali to yield mono- and poly-hydroperfluoroalkyl benzenes of general formula C6Fm- 1H(Rf)6- m, where m is 1-6.  Example (1) describes the preparation of (pentafluorophenyl)dichlorofluorosilane which is hydrolysed by water to a polysiloxane and further by 40% NaOH to pentafluorobenzene; Example (2) (pentafluorophenyl)-dichloroflurosilane; and Example (3) an isomeric mixture of (methyltetrafluorophenyl)-dichlorofluorosilane which yields a polysiloxane in water hydrolysis.
Patent GB-1377227-A (GB)
Title: Process for the pruification of crude 2,2-bis-4,-oxyphenyl-propane
IPC: C07C37/86
Filed: 1972-03-27
Abstract: 1377227 Purification of bisphenol A BADISCHE ANILIN- & SODA-PABRIK AG 27 March 1972 14227/72 Heading C2C Crude bisphenol A is purified by forming an adduct of the crude bisphenol A and phenol, melting the adduct and passing the melt through at least one column containing an acidic and/or weakly basic ion exchanger, the material discharged from the column(s) being distilled to separate it into phenol and bisphenol A. The adduct should preferably have a melting point of not more than 100‹ C. and is preferably passed firstly through an exchange column containing an acidic ion exchanger and secondly through an exchange column containing a weakly basic ion exchanger.
Patent GB-1412911-A (GB)
Title: Live storage conveyor system
IPC: B65G1/06
Filed: 1974-04-01
Abstract: 1412911 Conveyers C H STEVENSON 1 April 1974 14295/74 Heading B8A A conveyer system for use in a dairy products plant conveys cases 32 of products along production lines 34 to stacking machines 42, the cases being transferred to a series of live storage conveyers 50 by conveyers 46, 48, 49. Cases of products are then transferred to trucks 40 via an outfeed conveyer 52 and a shipping area 38. Each conveyer 50 comprises a pair of tracks 58 and a pair of case-engaging and sensing assemblies 70, each track and each assembly extending along the opposing sides of adjacent track supports 54, Fig. 2. The cases are supported and guided by wear strips 66, 84 and the assemblies 70 are supported for reciprocation on wear strips 76. In Fig. 4, a case-engaging lug 80 is pivotally mounted in a channel 74 of an assembly 70 the lug being normally urged to its fullline position by a case-sensing spring 90. The lug is also controlled by a spring 101 mounted on a bar 106 slidable in channel 74. When the channel 74 is moved to the right the lug 80 engages a downwardly extending rim of a case 32 which is accordingly moved along the tracks 68. Return of the channel 74 causes the sensing spring 90 to engage the moved case and the lug 80 is free to pivot under gravity to its phantom position such that the following case is not moved when the channel 74 again moves to the right. When it is required to transfer a line of accumulated cases on to the outfeed conveyer 52, the bar 106 is moved, by an air cylinder 200, to its forward position, Fig. 11, and each lug 80 is maintained in its operative position while the channel 74 continues to reciprocate. Cross feed conveyer 49 has lugs (166) which engage the rear walls of the cases; sensing springs are dispensed with, Figs. 15, 16 (not shown). Fig. 17 indicates how stacks of cases are transferred by hydraulic pushers 184 from the conveyer 49 to selected conveyers 50. Each conveyer 50 has an hydraulic indexing cylinder 190 which reciprocates the channel 74 containing the lugs 80. The selection of stacks to be forwarded is controlled by a code-bearing card on each stack, the cards being sensed by photoelectric cells 182. Control also depends on numerous limit switches :and upon manually operated "move-up" and "load-out" switches, Fig. 18 (not shown). Modifications.-The track 68 may comprise rollers in place of the wear strips, Figs. 21, 22 (not shown), and modified lug control springs and mountings are specified, Figs. 23-26 (not shown). For moving stacks or cases having no bottom rims, the lugs may have friction formations on their upper surfaces, Figs. 30, 31 (not shown). In Figs. 34, 36, objects 32 are pushed along a storage conveyer 369 for discharge on to an outfeed 406. Both conveyers have single reciprocating lug channels in place of pairs of channels 74. Figs. 37-39 (not shown) illustrate a mechanism (432), actuated by an air cylinder (458), for transferring objects from a crossfeed conveyer to the storage conveyer 369.
Patent GB-578097-A (GB)
Title: Surgical and dental alloys
IPC: C22C19/00
Filed: 1943-09-03
Abstract: 578,097. Surgical alloys. DELORO SMELTING & REFINING CO,. Ltd. Sept. 3, 1943, No. 14441. [Class 82 (i)] An alloy consisting of 15-65 per cent cobalt, 10-45 per cent nickel, 10-28 per cent chromium, 5-20 per cent vanadium, 2-10 per cent of molybdenum and/or tungsten, 0.1- 0.75 per cent carbon, 0.01-2.50 per cent boron, 0.3-1.0 per cent manganese and 0.3-1.0 per cent silicon, the ratio of silicon to manganese being between 0.8 and 2 and the sum of the vanadium, boron, silicon and manganese contents being in excess of 6 per cent. Preferred maxima for the silicon and manganese contents are respectively 0.60 and 0.75 per cent. Preferred compositions within narrower percentage ranges consist of 30-50 per cent cobalt, 10-29 per cent nickel, 20-25 per cent chromium, 10-15 per cent vanadium, 3-5 per cent of molybdenum or tungsten, 0.3-0.5 per cent of each of silicon and manganese, 0.2-0.6 carbon and 0.2-0.5 per cent boron. A particular composition contains substantially 18 per cent chromium, 15 per cent nickel, 10 per cent vanadium, 4 per cent molybdenum, 0.25 per cent boron, 0.30 per cent carbon, 0.30 per cent silicon, 0.35 per cent manganese, the remainder being cobalt. The alloys may be made by melting the cobalt, nickel, chromium, molybdenum or tungsten and 10-15 per cent vanadium, deoxidising the melt with silicon and manganese in the presence of calcium boride and centrifugally casting the deoxidised alloy into a desired shape. Specification 454,881 is referred to.
Patent GB-246011-A (GB)
Title: Improvements in laying-out charts for garment parts
IPC: A41H3/06
Filed: 1925-06-04
Abstract: 246,011. Bernardo, L. June 4, 1925. Drawings to Specification. Cutting-out. - A chart for laying out the different parts of a garment to various sizes comprises a sheet of flexible material provided with rows of correspondingly. marked perforations provided with different coloured strips or margins outlining the rows of the patterns for the different parts of the garment, and different symbols adjacent the rows.
Patent GB-1466742-A (GB)
Title: Pneumatic devices for simultaneously feeding several feed  channels of user machines
IPC: A24C5/39
Filed: 1974-04-03
Abstract: 1466742 Pneumatic conveyers SERVICE D'EXPLOITATION INDUSTRIELLE DES TABACS ET DES ALLUMETTES 3 April 1974 [4 April 1973] 14687/74 Heading B8A Loose material, e.g. cut tobacco, is supplied to user machines along pneumatic channels, one channel for each machine, the channels being supplied by a vibrating conveyer which is in turn supplied with the material, e.g. through a pipe-line. In the Fig., loose cut tobacco supplied to vibrating conveyer 1 by pipe 8 is moved by the vibration along plate 7 towards reservoir area 11. Pneumatic channels 9 arranged sideby-side parallel to direction of vibration below plate 7 are connected via sliding joints 14 and further pipe-lines to respective user machines and on demand from a machine, suction is set up in the respective pipe-line and channel to convey tobacco from the reservoir 11 to the machine. Detector 15 initiates vibration when the level of material on plate 7 is too low, detector 16 initiates vibration when the level of material in reservoir 11 is too low, or when suction occurs in one or more channels 9.