baber/WOPTO huggingface dataset:
Patent GB-843279-A (GB)
Title: Improvements in or relating to turret tuners
Inventor: COLEMAN ANTHONY STANLEY
IPC: H03J1/14
Filed: 1957-11-07
Abstract: 843,279. Radio receiving apparatus. BRAYHEAD (ASCOT) Ltd. Nov. 7, 1958 [Nov. 7, 1957; June 3, 1958], Nos. 34750/57 and 17697/58. Class 40(5). [Also in Group XXXVI] In a turret tuner the fine-tuning arrangement comprises a plurality of variable capacitors adjustable by a common control member, means being provided for selectively connecting the capacitors into the tuning circuit either individually or in different combinations in accordance with the channel to which the turret tuner is adjusted. In a tuner for a television receiver covering both Bands I and III, the capacitors and their connection into the tuning circuit are so chosen that the range of fine-tuning adjustment is approximately equal over the two bands. In a receiver which also has facilities for receiving sound broadcasts on Band II, the fine-tuning capacitors may be so arranged when the turret is adjusted for reception on that band that the fine-tuning control may serve as the tuning control covering the whole band. In the arrangement illustrated the fine-tuner comprises two fixed capacitor plates 12a, 12b co-operating with a common movable plate 13, this plate being connected electrically to the chassis of the tuner and being adjustable by a cam 14 formed as the end surface of an insulating sleeve 15 surrounding the main tuning shaft 5 of the tuner. The plates 12a, 12b are connected to fixed contacts 10a, 10b respectively, these contacts co-operating respectively with contacts 9a, 9b on the panels 7 making up the turret. These contacts are so connected to the components on their respective panels that for the low-frequency band (Band I) the two capacitors constituted by the plates 12a, 12b and the common plate 13 are connected in parallel while for the high-frequency band (Band III) only the capacitor constituted by plates 12b and 13 is connected into the circuit. For sound-broadcast reception on Band II where it is desired to use the fine-tuning control as a tuning control covering the whole band, the plates 12a, 12b are connected to opposite ends of the respective tuning coil. In an alternative construction, Fig. 4 (not shown), the fixed plates are carried in an insulated fashion on the front end wall of the tuner, e.g. as conductive areas "printed" on an insulating panel bolted or rivetted to the front wall. In a further construction, Fig. 5, the fixed plates 212 co-operate with a movable plate constituted by the peripheral surface of a cylindrical member 213 mounted on the shaft 15. The member 213 may be made of metal or alternatively of an insulating material with a metallic layer printed on its periphery. The member is tapered as shown so that on rotation of the shaft 15 the area co-operating with the plates 212 varies and the capacitances of the capacitors constituted thereby vary accordingly.
Patent GB-195442-A (GB)
Title: An improved metallic band, clip or clamp for repairing and jointing pipes and other purposes
IPC: F16L33/02
Filed: 1921-12-28
Abstract: 195,442. Butler, W. A. Dec. 28, 1921. Clips, band.-A band clip for jointing and repairing pipes, making earth connections, and other purposes, and of the type wherein one end is slotted and passes through an aperture provided at the other end to be drawn tight by a tool and turned down, has the aperture formed by a link 8 attached by a loop 3 which may be integral with the band, or formed separately as in Fig. 7, to allow the extension 27 to bridge the space under the link. Indents 26 allow the surplus end 24 to be torn. off when the band has been secured. The end 17 of the metal forming the loop 3 may be turned up to form another loop for an electric wire 22.
Patent GB-1254003-A (GB)
Title: Production of polyamides from aromatic diamines
Inventor: JONES MICHAEL EDWARD BENET
IPC: C08G69/28
Filed: 1968-07-23
Abstract: 1,254,003. Polyamides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 23 June, 1969 [23 July, 1968] No. 35046/68. Headings C3C and C3R. A process for producing polyamides comprises reacting a bis(aminophenyl) sulphone with a dicarboxylic acid at 160‹ to 300‹ C. in an inert atmosphere and the presence as catalyst of the product formed by adding hypophosphorous acid or its salt with an organic base R-SO 2 -Ar-NH 2  (where R is a monovalent hydrocarbon group or an amino-substituted monovalent hydrocarbon group and Ar is a divalent aromatic group) to the reaction mixture at below 150‹ C. The acid may be a C 6-16  polymethylene or aromatic dicarboxylic acid. Additives, e.g. heat and light stabilizers, lubricants, fillers, mould release agents and plasticizers may be included. The polymerization may be effected in two stages (i) at 160‹ to 240‹ C. under reflux and (ii) at 220‹ to 270‹ C. at a pressure of 1 mm. Hg or less. The products are amorphous transparent polymers which can be moulded to fibres or thicker articles without crystallizing. When the acid is aromatic films, fibres and coatings may be obtained from solutions. Examples compare the physical properties, solubility in formic acid, dimethyl formamide or sulphoxide and sulphuric acid and processability of the polymers with those obtained using other catalysts. In several examples the product is a rigid tough foam. Reference is made to Specifications 1,113,824 and 1,161,124.
Patent GB-291696-A (GB)
Title: Improvements in and relating to centrifugal grinding mills
IPC: B02C15/02
Filed: 1927-12-28
Abstract: 291,696. Hughes, R. M., (Bradley Pulverizer Co.). Dec. 28, 1927. Roller-and-ring mills.- In a centrifugal grinding mill comprising a base 1 providing an annular grinding chamber having mounted therein an annular grinding ring 8, with which co-operates centrifugally - actuated grinding rollers 16 and an air separator which is superposed above the grinding chamber, means comprising movable vanes 57 are provided for admitting air above and substantially adjacent to the grinding ring in different predetermined directions relatively to radii of the grinding chamber, to regulate the action of the air separator. The grinding ring is also resiliently clamped in its seating. The rollers 16 are mounted on shafts 17 pivoted to a spider 50 secured on a vertical shaft 22 driven by bevel wheels 29, 30 from a shaft 31. The grinding ring 8 is mounted in a guide ring 7 housed in a recess in the base 1 and is resiliently secured by a number of stiff spring clamping plates 9 having downwardly flanged ends 10, 11. Air may be admitted to the conduit 63 from the return conduit of the suction fan (not shown). An annular casing 68 is mounted on an annular plate 55 and is provided with a conoidal top 69 and conduit 70 which leads to the air separating means (not shown). The vanes 57, Fig. 2, are loosely mounted on the bolts supporting the plate 55 and an upturned bolt 60 at the edge of each vane projects through, approximately, diagonally arranged slots in the casing 62 and an annular ring 64 respectively, so that by moving the ring 64 the inclination of the vanes is adjusted to direct the air currents onto the finely powdered material above the plane of the grinding ring. The finely ground material is then drawn upwardly by the draught of the suction fan and discharged into the separator. The material to be ground is fed into a chute 41 and transferred into a hopper 43 by a screw conveyer 42. The hopper is of trefoil construction having a central circular base 44 and a downwardly tapering wall 47 with three lateral and downwardly extending tubular sections 48 which lead respectively to chutes 49, the lower ends of which are located in advance of the respective rolls so that the material is delivered by centrifugal force in front of the rolls. Ploughs 52 are attached to the spider 21.
Patent GB-1477165-A (GB)
Title: Disposable douche
IPC: A61M3/02
Filed: 1974-08-09
Abstract: 1477165 Disposable douche RICHARDSON-MERRELL Inc 9 Aug 1974 [9 Aug 1973] 35134/74 Heading A5R [Also in Division B8] A disposable douche 10 comprises a discharge nozzle 12 securable to the neck 18 of a syringe 11 incorporating a collapsible bellows comprising at least two connected bellows chambers 13, 14, 15, the perimeters of the outer edges of which successively decrease from one end of the body to the other such that in the collapsed state the bellows chambers nest inside one another, each chamber, when expanded comprising upper and lower generally frustoconical portions positioned base to base, the profile of the surface of the upper frustoconical portion being curved outwardly. The discharge nozzle is an elongated member which is substantially rectangular in cross-section and has in each side spaced discharge openings 28 between elevated side walls 29, the distal end of the nozzle having a recessed opening 30 with a radial cross-member within it. The nozzle has a bulbous skirt 26 fitting onto the neck of the syringe which is threaded and has annularly-disposed locking lugs cooperating with locking teeth on the skirt 26 to lock the nozzle in position. The chamber 13 may contain a soluble cleansing powder which is dissolved prior to use of the douche, the nozzle being fitted after filling of the syringe with water. The douche may be packaged in a sterile package with the nozzle detached from the syringe and with a cap over the neck of the syringe.
Patent GB-733548-A (GB)
Title: Pipe coupling
IPC: F16L19/06
Filed: 1953-12-17
Abstract: 733,548. Pipe joints. DRESSER INDUSTRIES, Inc. Dec. 17, 1953 [Dec. 19, 1952], No. 35143/53. Class 99 (1). In a joint in which a gasket 14 is compressed in a recess 13 in the end of a sleeve or socket member 11 by the end flange 18 of a coupling nut 17, a number of circumferentially spaced locking elements 30 housed in a recess in the gasket are moved axially by the nut until radial contraction of the gasket causes them to ride over the edge 24 of the flange and become wedged between its inclined surface 23 and the pipe P. The gasket has a metal retainer cup 28 which slides within the recess 13. The locking elements may be balls or be wedgeshaped, as shown, with serrated internal surfaces. The elements may be connected, being formed by deep axial slots in a ring. When separate they are bonded to the gasket for ease of assembly. In a modification the retainer cup 128, Fig. 6a, is bigger than the gasket and slides over a reduced extension 111 of the coupling sleeve; the base 129 of the cup is bowed so that as it flattens under compression it assists the locking elements to ride over the edge of the nut flange.
Patent GB-368293-A (GB)
Title: Process of treating fibrous materials
Filed: 1930-11-21
Abstract: Sulphonation products of abietene, abietine, and abietane are used as wetting agents in processes involving the treatment of fibrous materials, e.g. textiles or leather, in aqueous baths, such as in dyeing or tanning leather, or dyeing, carbonizing, fulling, softening, sizing or dressing textiles.  Abietene and abietine are obtained by pyrogenic decomposition of rosin, abietic acid or abietyl chloride, e.g. by refluxing rosin in the presence of iron, until its acidity is practically destroyed, and then submitting the product to distillation.  Abietane is obtained by hydrogenation of abietene in the presence of nickel.  The sulphonation may be effected with sulphuric acid monohydrate.  In examples, (1) cotton yarn is wetted out with an aqueous solution of abietene sulphonic acid (sodium salt) and dyed with Anthrene violet BNX in a vat in the usual manner; alternatively the abietene sulphonic acid may be added to the vat, (2) woollen yarn is wetted with a solution of abietene sulphonic acid as a step in any process involving the wet treatment of wool, e.g. cleansing, degreasing, dyeing, fulling or carbonizing, (3) an abietane sulphonic acid is used instead of the abietene sulphonic acid in the process of example 1, and (4) cellulose acetate silk is dyed in a bath prepared from a mixture of 1-amino-2-methylanthraquinone, sugar, and abietene sulphonic acid (sodium salt).  Specifications 368,294 and 368,351 are referred to. Reference has been directed by the Comptroller to Specification 271,898, [Class 2 (iii), Dyes &c.].
Patent GB-367448-A (GB)
Title: Improvements in or relating to fire places
IPC: F24B1/18
Filed: 1930-11-21
Abstract: 367,448. Open fireplaces. MOFFAT, J. A., 26, National Mutual Buildings, Rissik Street, Johannesburg, South Africa. Nov. 21, 1930, No. 35177. [Class 126.] An open fireplace, of the kind described in Specifications 8434/84, 120,535, 131,618, 174,409, and 247,124, [all in Class 126, Stoves &c.] comprising a frame adapted to be built into a wall opening and on which a unit comprising a grate, back wall, and sometimes a canopy is rotatably mounted so that it mav be turned to face either of two rooms, comprises a frame 10 having superposed coaxial sockets 11, 12 in its upper and lower members ; a rotatable unit comprising a grate 14 with a socket 21, a back wall 15, a canopy 16, and a cylindrical flue, portion 17 bridged by a member 18 formed with a socket 19 ; detachable pins 20, 21 entering the corre-. sponding pairs of sockets ; and a sheet-metal sleeve 24 adapted to fit the flue portion 17 and attached to a cylindrical flue 23 in the wall. The pin 22 is hollow to allow gas or electric connections to pass through it. A wire mesh screen 26 simulating a fireguard is attached to the back of the rotatable unit. In the form shown in Fig. 3, the jambs 30, 31 are formed by trough-shaped castings having part cylindrical walls 32 fitting closely against correspondingly shaped side walls 28 of the rotatable unit, and filled to half their depth with concrete by which they are secured in position. A wire screen 38 is detachably secured to the jambs.
Patent GB-447293-A (GB)
Title: Improvements in and relating to prepayment meter mechanism
IPC: G07F15/06
Filed: 1934-12-07
Abstract: 447,293. Prepayment mechanism for meters. HOLDEN, F., and MEASUREMENT, Ltd., Terminal House, Lower Belgrave Street, Westminster. Dec. 7, 1934, No. 35185. [Class 27] An adjustable fixed charge collecting mechanism for prepayment meters comprises a constant speed driving shaft o, Fig. 3, driving through gearing j, k, m, Fig. 1, a wheel n rigid with a notched disc d loosely mounted on a shaft a. The disc d engages a pawl c on an arm b loose on the shaft a and carries this with it until the pawl c is disengaged by meeting a fixed abutment h, whereupon the arm is returned by a spring i until the pawl meets a fixed return stop. During its return movement a second pawl e on the arm b drives a ratchet wheel f fixed to the shaft a, the motion being transmitted through wheels p, g to an arm r loose on a shaft s. The arm r carries a pawl t to engage and drive a ratchet wheel u fixed to the shaft s, the extent of the operative engagement of the pawl being controlled by a sector v angularly adjustable with respect to a fixed sector x. The rotation of the shaft s is conveyed to a switch tripping mechanism. In a modification, the fixed pawl-return stop is dispensed with, the arm b returning to an arbitrary extent and the ratchet wheel f having two teeth equally spaced on its periphery. In a further modification, the pawl e and wheel f are dispensed with, the arm b being fixed to the shaft a while the arm r is arranged to be oscillated and driven on its return stroke.
Patent GB-859899-A (GB)
Title: New monoazo dyestuffs derived from benzthiazole
Inventor: FISHWICK BRIAN RIBBONS
IPC: C09B29/033
Filed: 1958-11-03
Abstract: The invention comprises water-insoluble dyes of formula: <FORM:0859899/IV (c)/1> where A is a substituted or unsubstituted 1, 4-phenylene or -naphthylene nucleus which is free from sulphonic or carboxylic acid groups, R is H or a lower alkyl radical which may be substituted or an aralkyl radical, R1 is a lower alkyl radical which may be substituted, X is CN or SCN and B may contain substituents other than sulphonic and carboxylic groups, provided that R and R1, when substituted, are free from sulphonic and carboxylic acid groups and that when R is a b - cyanolower alkyl radical R1 is neither a b -cyanonor a b - acyloxylower alkyl radical.  Lower alkyl and alkoxy groups contain 1 to 4 carbon atoms.  The dyes are made by diazotising appropriate aminobenzothiazoles and coupling with the desired azo components. Specified substituents for A are methyl, methoxy, chlorine, bromine, trifluoromethyl and acetylamino groups. Specified substituents for B are methyl, chlorine and bromine groups. Representative of values specified for R and R1 are: methyl, hydroxybutyl, ethoxyethyl, cyanopropyl, acetoxyethyl, bromoethyl, carbethoxymethyl, methylsulphonylethyl, ethylcarbonylethyl, aminocarbonylethyl, g - chloro -b - hydroxypropyl, b , g - epoxypropyl and b - (4, 6- diamino -s-triazin -2- yl) ethyl groups. R is also specified as a benzyl group.  The dyes dye textiles comprising artificial fibres such as cellulose ester fibres e.g. acetate and triacetate, polyamide fibres, e.g. polyhexamethyleneadipamides and polycaprolactams, polyvinyl fibres, e.g. polyacrylonitriles which may be modified, and aromatic polyester fibres e.g. polyethyleneterephthalates. Dispersed dyeing processes are preferred.  Orange to greenishblue shades are obtained.  Examples are provided of the preparation of the dyes and their use in dyeing processes.  In the Provisional Specification A is described as any substituted or unsubstituted benzene or naphthalene nucleus which is free from sulphonic and carboxylic acid groups and R and R1 are H or a substituted or unsubstituted alkyl radical or a cycloalkyl or aralkyl radical.  Specifications 440,113 and 787,369 are referred to.
Patent GB-1115515-A (GB)
Title: Vibratory ball mill
IPC: B02C17/14
Filed: 1965-08-17
Abstract: 1,115,515. Ball mills. E. W. SMITH. 17 Aug., 1965, No. 35238/65. Heading B2A. [Also in Division F2] A system for continuously grinding or batch grinding material comprises a mass 10 having a plurality of metal tubes 16 for containing the material and grinding particles, a spring means 11 connected at one end to the mass 10 and at the other end to a mass 14, the spring means 11 and masses 10, 14 forming a resonant system having a resonant frequency and vibratable with forces providing an acceleration of at least 65G, and electromagnetic means 15 for establishing the system in resonance. The resonant frequency, the stiffness of the spring means 11, and the masses 10, 14 are interrelated by the formula: where f = resonant frequency of the system u = stiffness of the spring means in dynes/cm. M' = total mass in grams to be vibrated including mass 10 and the material and grinding particles therein M" = mass 14. The mass 14 may be greater than or equal to the mass 10 and in the latter case may be a mirror image thereof. The tubes 16 are arranged in rows and columns and supported in a frame 19, the tubes being connected in series by means of end plates 21, 22 removably secured to the frame 19. A screen 30, or 31, is disposed at each end of the tubes to retain the grinding particles while allowing the ground material to pass therethrough. Openings 25 and (26) Fig. 3 (not shown) are provided for a liquid carrier. The tubes may be surrounded by heating and cooling means. The plates 21, 22 are movable along a frame 8. Alternatively, the plates may be flat and be permanently secured to the frame 19. The spring means 11 comprises a plurality of circular discs (50, 51) Fig. 3 (not shown) arranged in pairs, the peripheries of each pair being clamped together, by means of nuts and bolts (59, 60), and the outer surface of each disc having extending therefrom a threaded projection (61), adjacent pairs of projections being interconnected by internally threaded sleeves (64). The stiffness of each disc is de termined by the equation U = Et<SP>3</SP>/22R<SP>2</SP> where E = Young's modulus in dynes/cm<SP>2</SP>. t = thickness of the disc in cms. R = effective radius of the disc in cms. The electromagnetic means for establishing the system in resonance comprises four electremagnets such as 72. The electromagnet 72 comprises a pair of armatures 78a, 78b connected to the mass 10 and a pair of E-shaped stators 77a, 77b connected to the mass 14, the stators each having a coil (79) Fig. 3 (not shown) wrapped around their centre leg 80. The armatures are in the form of flat plates spaced from the legs of the" stators.
Patent GB-817500-A (GB)
Title: Apparatus for lining centrifugal casting moulds
IPC: B22D13/10
Filed: 1956-11-16
Abstract: 817,500. Coating and lining moulds and cores. AMERICAN CAST IRON PIPE CO. Nov. 16, 1956 [Dec. 28, 1955], No. 35338/58. Divided out of 817,499. Drawings to Specification. Class 83 (1). Apparatus for lining centrifugal casting moulds comprises means for supporting a mould with its axis in a substantially horizontal position and for rotating said mould about said axis, an elongated trough for delivering lining material to the interior of said mould, means for moving said trough axially into and out of said mould, means for filling said trough with a measured quantity of lining material while said trough is being moved into said mould, and means for rotating said trough automatically when it reaches a predetermined point in its inward movement to deliver the lining material into the interior of the mould. The subjectmatter of the Specification is identical with that of Specification 817,499, which is referred to. Specification 717,515 also is referred to.
Patent GB-1136853-A (GB)
Title: Gas turbine engine
IPC: F02C7/32
Filed: 1966-02-01
Abstract: 1,136,853. Gas turbine engines. WILLIAMS RESEARCH CORP. Feb. 1, 1966 [Feb. 1, 1965], No.35388/67. Divided out of 1,136,851. Headings F1G and F1T. The subject-matter of this Specification is identical with part of that described in Specification 1,136,851. but the claims are concerned with a gas turbine engine including a first-stage turbine wheel, a second-stage turbine wheel, a burned gases chamber, an outer shroud extending between the first and second stage turbine wheels, nozzle vanes extending inwardly from the shroud, a bypass leading from the space between the wheels to the burned gases chamber, the by-pass comprising radial passages in the shroud between the first stage turbine wheel and the nozzle valves, and control means comprising a band adjustably overlapping the radial passages for adjustably controlling the size of the by-pass.
Patent GB-504657-A (GB)
Title: Improvements in and relating to grabs
IPC: B66C3/12
Filed: 1937-12-22
Abstract: 504,657. Grabs. BARNARD, D. J. Dec. 22, 1937, No. 35480.[Class 78 (iv)] In grabs, of the kind in which the jaws are pivoted to a lower cross-head and connected to an upper cross-head by spreader arms so that the approach of the two cross-heads to one another closes the jaws and vice versa, the span of the jaws in the open position is increased by making their pivots slidable in the lower cross-head so that the jaws can move bodily away from the centre line of the grab in opening. The invention is shown in its application to a grab having eight jaws 10 arranged in a circle. The pivot 20 of each jaw is mounted in the slot 22, and a link 26 affords a further collection between the jaws and lower cross-head 18. The spreader arms 12 pass to the upper cross-head 16 in the usual manner. The links 26 cause the pivots 20 to pass from the inner to the outer ends of the slots 22 as the cross-head 18 is lowered. In a modification the pivot 20 is fixed, and the bodily outward movement obtained by making part of the jaw telescopic so that the link 26 cause it to extend as the cross-head 18 is lowered.