baber/WOPTO huggingface dataset:
Patent GB-104888-A (GB)
Title: An Improved Device for Turning Over the Leaves of Music.
Inventor: PERKINS ELIJAH
IPC: B42D9/08
Filed: 1916-02-09
Abstract: 104,888. Perkins, E. Feb. 9, 1916. Leaf-holders and turners.-The leaves of music are attached to, and turned in either direction by, a number of pivoted arms operated in succession by a rotatable sleeve. The leaves are held between rods s, n on arms n<1> hinged to the leafturning arms k. The sleeve g by which the arms k are operated is pressed upwardly and turned backwards by a spring h and may be turned for. wards to operate the arms k by a cord and pedal. The arms k are engaged and operated in succession by the upper stepped part v of the sleeve g, the arm above that operated being prevented from turning by the engagement of its projection u with a stop-projection on a ring y moved upwards by the part v and having a sliding connexion with a fixed casing b. The music is gripped by a rod 8, which may be released, against the action of a spring 10, by a hand-lever a<1>.
Patent GB-381052-A (GB)
Title: Improvements in rail-joint connections
IPC: E01B11/10
Filed: 1932-01-22
Abstract: 381,052. Rail joints. REIFURTH, 0., 41. Hardt, Immigrath, Rhineland, and MÍLLER, A., 85, Hellbachstrasse, Reckling- hausen, both in Germany. Jan. 22, 1932, No. 2058. [Class 104 (ii).] In a rail joint comprising divided connecting fishplates embracing the rail foot, the guiding fishplates 12 and supporting fishplates 13 have prolongations 12<1> and 13<1> respectively above and below the rail foot, which overlap one another in the closed position. By forming the parts 12<1> as shown with clearance in grooves 15 in the plates 13, longitudinal displacement of the plates is permitted. The parts 13<1> may be provided underneath the rail with interengaging recesses and projections to prevent displacement of the rail ends. For one way traffic the arrangement of the fishplates shown may be modified, both plates 12 being attached to one rail end and both plates 13 to the other.
Patent GB-720556-A (GB)
Title: Dyestuffs of the polymethine type
Inventor: PALLING STANLEY JOHN
IPC: C09B23/10
Filed: 1952-01-25
Abstract: Polymethine dyes are prepared by reacting a compound of the general formula <FORM:0720556/IV (c)/1> with a cyanine dyestuff intermediate of the general formula <FORM:0720556/IV (c)/2> wherein R2 is aryl, styryl, alkylmercapto or aralkylmercapto; R3 is alkyl; X is O or S; X1 is an anion; Y is a reactive group or atom such as alkyl mercapto, acetanilido or halogen; Z1 is the residue of a heterocyclic nucleus; and n is 0 or 1.  Suitable compounds of the first general formula include 4-isopropylidene-2-phenyl-5-oxazolone and 4-isopropylidene-2-styryl-5-oxazolone. 4-(2-Phenyl-5-oxazolone)-21 - (3 - ethylthiazoline) - a  - methyltetramethinemerocyanine is prepared by refluxing together 4 - iso - propylidene - 2 - phenyl - 5 - oxazolone, 2 - o  - acetanilidovinylthiazoline ethiodide, ethanol, and triethylamine.  4-(2-Phenyl-5-oxazolone) - 21 - (1 : 3 : 3 - trimethylindoline)-a  - methyltetramethinemerocyanine, 4 - (2-styryl - 5 - oxazolone) - 21 - (3 - ethylbenzthiazole)-a  - methyltetramethinemerocyanine, 4 - (2-ethylmercapto - 5 - thiazolone) - 21 - (3 - ethylbenzthiazole) - a  - methyldimethinemerocyanine, 4 - (2 - benzylmercapto - 5 - thiazolone) - 21 - (3-ethylbenzthiazole) - a  - methyldimethinemerocyanine, 4 - (2 - ethylmercapto - 5 - thiazolone) - 21-(1 : 3 : 3 - trimethylindolenine) - a  - methyltetramethinemerocyanine, 4 - (2 - phenyl - 5-oxazolone) - 21 - (3 - ethylbenzthiazole) - a -methyldimethinemerocyanine, and 4 - (2 - styryl-5 - oxazolone) - 21 - (3 - ethylbenzthiazole) - a -methyldimethinemerocyanine are similarly prepared.  According to the Provisional Specification, the dyes may have the general formula <FORM:0720556/IV (c)/3> wherein R is H, alkyl, or aralkyl, R1 is H, alkyl, aralkyl, or aryl, R2 is alkyl, aralkyl, aryl, styryl, hydroxy, alkoxy, aralkoxy, mercapto, alkylmercapto, or aralkylmercapto, n is O or a small positive integer, R4 and R5 are the same or different and are hydrogen or alkyl, and m is 0 or 1.ALSO:4 - Isopropylidene - 2 - styryl - 5 - oxazolone is prepared by refluxing together cinnamoyl glycine, acetic anhydride, fused sodium acetate and acetone.
Patent GB-839220-A (GB)
Title: Improvements in or relating to a foldable deck-chair
IPC: A47C4/40
Filed: 1958-01-22
Abstract: 839,220. Folding chairs. EWART, F. Jan. 22, 1958 [Jan. 25, 1957; March 22, 1957; Jan. 11, 1958], No. 2144/58. Class 52(2) A folding chair with front legs 2 connected to back supports 1 and to bars 3 forming back legs and seat supports by cranked mounting pieces 13 has a leg support with side bars 4 pivoted to bars 3 and held in a horizontal swinging position under the action of an elastic cord 12 connected to bars 1 and passing through a cross rod 9a connecting bars 4. Bars 1 can be lengthened by bars 5 connected thereto by sleeve couplings 7 and connected to each other by crossbar 6. Fabric 14 to provide back seat and leg support is connected to cross bars 6, 8. The bars 1, 5 are connected by flaps 15 guided in slits of the bar ends and linked to the bars by cross rods 16. In a modification, Fig. 5, a frame like intermediate piece is connected to bars 4 by a pivot pin 17, rubber cords 21 being attached to bars 1 and passing over cross rods 19a of the intermediate piece. A further modification, Fig. 9, has pivoted arm rests 23 which are pivoted off-centre and tend to swing up into folded position unless held down by the arms of the chair occupant.
Patent GB-225416-A (GB)
Title: Novel or improved process for pickling stainless iron and steel
IPC: C23G1/08
Filed: 1924-01-28
Abstract: 225,416. Sankey & Sons, Ltd., J., and Martin, N. Jan. 28, 1924. Pickling.-Stainless iron or steel articles are pickled bv immersion in a bath containing materials in solution or suspension and acting to produce nascent chlorine. The chlorine may be produced by the action of hydrochloric acid on manganese dioxide or by the action of sulphuric acid on bleaching powder or by the use of aqua regia. The bath may consist of hot or cold water. The articles after removal from the bath may be treated with nitric acid to improve their colour, and the acid may be neutralized by treatment with caustic soda.
Patent GB-190654-A (GB)
Title: Improvements in or relating to soil engaging members for rotary soil cultivators
IPC: B60B15/02
Filed: 1922-01-25
Abstract: 190,654. Hamshaw, C. M. Jan. 25,1922- Rotary-tool machines.-A rotary cultivator comprises a drum mounted on a tractor frame and carrying soil-engaging members 7 detachably secured to brackets 10 fixed on the periphery of the drum. The soil-engaging members are of curved cross-sectional shape, sharpened at the outer edge, and are secured to the correspondingly curved brackets 10 by bolts 8 which have lugs 9 engaging slots in the soil-engaging- members to prevent rotation of the bolts. The faces of the brackets are inclined as shown to a plane passing through the axis of the drum, the faces in adjacent rows being inclined in opposite directions and the brackets being arranged in staggered order. The brackets are stiffened by side webs 12, 13 and central slots 15 may be left to reduce weight.
Patent GB-212695-A (GB)
Title: An improved clamping device specially applicable for securing tarpaulins over ships' hatches
IPC: B63B19/24
Filed: 1923-01-25
Abstract: 212,695. Neil, J. Jan. 25, 1923. Hatch fastenings. - A clamping device particulary adapted for securing tarpaulins over ships' hatches comprises a fixed' bracket a carrying a pivoted clamping member b, the upper part m of which engages the batten f on tightening a screw d in the lower part of the clamping member. The upper part m of the clamping member is U-shaped and each limb carries a projection e to prevent the batten f from rising. The clamping member is so pivoted that, on releasing the screw d, it falls away from the hatch under its own weight.
Patent GB-967994-A (GB)
Title: Improvements relating to electrical regulators
Inventor: MASTERS KENNETH WILLIAM
IPC: G05F1/33
Filed: 1960-01-21
Abstract: 967,994. Automatic current and voltage control systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 3, 1961 [Jan. 21, 1960], No. 2286/60. Heading G3R. An electrical regulator employing a saturable inductance and having a substantially constant output current or voltage is provided with an arrange - ment whereby any increase of current or voltage resulting from abnormal operating conditions is limited. As shown, a saturable choke sc is connected in series with two output transformers OT1 and OT2 and serves to maintain the output current, for example, of the regulator substantially constant. The output voltage of the regulator at terminals OT is applied over a rectifier bridge Rfb2 to a control winding mw of a transductor T whose output is fed over a rectifying bridge Rfb1 to saturating windings sw1 and sw2 of the transformers OT1 and OT2. With rise of the output voltage of the regulator the current through the transductor winding mw rises but has no appreciable affect until it exceeds a constant bias current supplied to a biasing winding bw, beyond which the transductor output current increases abruptly to saturate the transformers OT1 and OT2. These transformers therefore draw an increased current which produces an increased voltage drop across the choke sc and thereby reduces the output voltage provided by the transformers. To limit the current output of constant voltage regulators the transductor winding mw would be made current responsive. The transductor may be replaced by transistors having the requisite output characteristics. Specification 872,000 is referred to.
Patent GB-1337042-A (GB)
Title: Process for producing contact lenses
IPC: A61B3/107
Filed: 1971-01-18
Abstract: 1337042 Contact lenses WESLEY-JESSEN Inc 18 Jan 1971 [19 Jan 1970] 2357/71 Heading G2J A method of making a contact lens which defines an optical zone and a surrounding bearing zone comprising determining a suitable base curve from measurements of the eye of the patient, and forming a concave spherical curvature 12 on the lens corresponding to this base curve to form the optical zone, measuring the slope of the cornea of the eye in one meridian (preferably the flattest meridian) at at least one point to be covered by the bearing zone, and forming a second concave spherical curvature 14 in the form of an annulus of a sphere having a chord equal to the diameter of the optical zone, and having a slope at the point of inter-section of the chord and the annulus conforming to the measured slope. As shown, a third concave spherical annulus 16 may be formed in the lens.
Patent GB-536670-A (GB)
Title: Improvements relating to electrical roller contacts
IPC: H01H1/16
Filed: 1940-02-08
Abstract: 536,670. Switch contacts. CHANCE BROS. & CO Ltd., and HALLETT, L. B. H. Feb. 8, 1940, No. 2449. [Class 38 (v)] A contact roller adapted to bridge two rows of contacts h comprises a number of cupped metal discs with resilient edges' a co-axially mourned on a spindle b carried by a movable holder. As shown, there may be two series of discs facing opposite ways. Spacing members c may also be provided.
Patent GB-1526262-A (GB)
Title: Bag holder
IPC: B65B67/12
Filed: 1975-01-21
Abstract: 1526262 Bag holders ENGLISH GLASS CO Ltd 4 Dec 1975 [21 Jan 1975 9 Sept 1975] 2514/75 and 37141/75 Heading B8C A bag holder comprises a frame for receiving a bag mouth, the frame comprising two elements 2, 8 articulated to each other at each end, one element 2 having means 3 for attachment to a support and the other having a handle 9, the elements 2, 8 being biased to a bag closing position in which they are bowed in the same direction and relatively movable to an open position in which they are oppositely bowed. The biasing force may be exerted by a rubber band 5 surrounding the elements 2, 8. Alternatively, Fig. 7, a rubber band 32 may be stretched between brackets 31 on one element 22, and slots 34 in the elements 21, 22 along with recesses 37 may locate a rubber band (36), Fig. 10 (not shown), for retaining the bag (35).
Patent GB-546353-A (GB)
Title: Improvements in and relating to templates and the like
IPC: B24B53/08
Filed: 1941-02-25
Abstract: 546,353. Surface and outline gauges. THURLEY G. S., and BRITISH GEAR GRINDING & MANUFACTURING CO., Ltd. Feb. 25, 1941, No. 2575. [Class 106 (ii)] A template for checking the grinders used in precision gear grinding comprises a template a consisting of a mild steel body whereon is welded a hardened steel segment c on which the master involute b is formed, and a cut e made behind the part c at a part corresponding to the pitch circle of the teeth to be ground, a screw f being provided to stress the surface b to the desired form. A solid screw block g or a distance piece h may be provided to prevent undue stressing. The cut e is preferably normal to the curve b. In a modification the template is of comparatively thin plate to which are attached two thicker pieces at each side of the slot to take the screws. In a further form a piece of tapered spring steel forms the gauging surface the ends being spot welded at the ends to two bars provided with screws as above. Specification 536,299, [Group XXIII], is referred to.
Patent GB-1106303-A (GB)
Title: Improvements in or relating to boxes and blanks therefor
Inventor: PERKS ERNEST HENRY PEEL
IPC: B65D5/68
Filed: 1965-01-21
Abstract: 1,106,303. Boxes. G.K.N. SCREWS & FASTENERS Ltd. 16 Nov., 1965 [21 Jan., 1965], No. 2630/65. Heading B8P. A box having a tray-like body over which a slightly larger similarly-shaped flanged lid is pushed, has interengaging projections and recesses on the two parts, holding the lid on the body, released by pushing inwards the walls of the body when the lid is to be removed. The body is folded-up from a blank so as to have end walls 13 with flaps 15 glued &c. to the outside of side walls 11. Each flap 15 is of L-shape, with a corner 17 removed. The removed corners 17 of the flaps thus combine with the side walls 11 to form recesses 22. The remaining end tongues 18 of the flaps 15 form projections. The box lid is similarly constructed from a slightly larger blank, with the flaps (15), Fig. 3 (not shown), glue &c. to the insides, instead of to the outsides, of the side walls (11). When the lid is pushed on to the body, the projections and the recesses interlock, holding the lid on the body. The interlock is released by pushing inwardly the side walls of the box body. As shown, the projecting end tongues 18, Fig. 2, are corrugated. Alternatively, the end tongues 18 may be provided with upstanding tabs (26), Fig. 4 (not shown), bent about axes perpendicular to the bottom and top of the box, respectively, or upstanding tabs (28, 29), Figs. 5, 6 (not shown), bent about axes parallel to the box bottom and top. Finger holes (24), Fig. 3 (not shown), may be provided along the bottom edges of the lid side walls. The box body and lid are each folded-up from a scored blank having a rectangular bottom (or top) panel (10), Fig. 1 (not shown), end-forming panels (13) with L-shaped flaps (15) along their two side edges, and side-forming panels (11).
Patent GB-329973-A (GB)
Title: New or improved process of removing or recovering sulphur from fluids
IPC: C10K1/20
Filed: 1929-01-25
Abstract: 329,973. Premix Gas. Plants, Ltd., and Docking, A. Jan. 25, 1929. Purifying processes.- Sulphur is removed and recovered from producer gas after it has been reduced to about normal temperature in the washers or scrubbers by reheating the gas, e.g. to about 90‹ F. but not above about 120‹ F., and subjecting it in the heated condition to purification by contact with iron oxide, or any material containing ferric hydrate, the gas being then passed through a condenser to remove its moisture content and reduce its temperature to normal. In the example given, the gas passes through a pipe C to a heater B where its temperature is raised to about 90‹ F. by a steam coil E fed from a boiler D heated by a gas burner D<1>. The gas passes through a regulating valve F to the purifier A, where it passes through iron oxide or ferric hydrate A<2> supported on trays A<1>, and thence through pipe G to a tubular condenser H where moisture is removed. The gas may next be passed through a valve I and pipe J to a compressor. Sufficient moisture is added periodically or continuously to the purifier to replace, that which is carried away by the gas. Electrical heating may be used for raising the temperature of the gas. The Provisional Specification describes the treatment by the process of sulphur-containing gases generally.
Patent GB-1086021-A (GB)
Title: Process for the production of aromatic polyketones
Inventor: JONES MICHAEL EDWARD BENET
IPC: C08G61/00
Filed: 1964-01-22
Abstract: Aromatic polyketones are prepared by reacting either (i) a mixture of (a) at least one compound containing two aromatically bound carbonyl halide groups and (b) at least one compound containing at least two aromatically bound hydrogen atoms, preferably in substantially equimolar proportions, or (ii) at least one compound containing a single carbonyl halide group and a hydrogen atom each bound to an aromatic ring or (iii) a mixture of the three types of compounds specified in (i) and (ii) above, in the presence of from 0.05 to 6% of the weight of the polymerizable material of a salt of iron which is soluble in the molten polymerizable mixture.  The preferred dicarbonyl halides are those of the structure:  <FORM:1086021/C3/1> <FORM:1086021/C3/2> <FORM:1086021/C3/3> or substituted derivatives thereof, wherein Y is a divalent bridging radical and is preferably oxygen, sulphur or groups of the structure:  <FORM:1086021/C3/4> where K and K1 ar oxygen or sulphur atoms and L is-CO-or SO2 and X is a halogen atom, preferably chlorine.  If the benzene ring is to be further substituted then halogen atoms, hydrocarbon, ether and thioether groups and halogen substituted derivatives of these groups are preferred.  The compound (b) may suitably be a compound having a structure similar to the dicarbonyl halides but in which the carbonyl halide groups are replaced by hydrogen atoms. At least one of the compounds (a) or (b) should be one containing benzene rings bridged by a divalent radical and the other is preferably one containing benzene rings directly linked to one another.  The compounds used in method (ii) may be exactly similar to the dicarbonyl halides (a) but excluding one of the carbonyl halide groups.  Ferric chloride is the preferred catalyst, but other ferrous and ferric salts such as ferric fluoride, ferric bromide, ferric iodide, ferric orthophosphate and ferrous and ferric acetoacetonates may also be used.
Patent GB-990083-A (GB)
Title: Method of preparing hydrocarbons, chlorinated hydrocarbons or esters of aromatic mono-, di- or tri carboxylic acids
IPC: C07C51/09
Filed: 1962-01-25
Abstract: Compounds of formula <FORM:0990083/C2/1> are prepared by reacting in presence of a Friedel-Crafts catalyst an Rn-substituted benzene with the nitro-compound Q3CNO2; n is 0-3, R is C1- 4-alkyl or Cl and Q is C1- 4-alkyl or -CH2CHXCO2Y, wherein X is C1- 4-alkyl or and Y is C1- 8-alkyl.  In examples, there are thus prepared the methyl ester of 4-phenyl-2,4,4-trimethylbutanoic acid and the p-chloro and p-methyl analogues; ethyl 4-methyl-4-p-tolylpimelate and the methyl esters of 4,4-dimethyl-4-phenylbutanoic acid and 4-phenyl-2,4,6-trimethylpimelic acid and 4-(2-carbomethoxyethyl)-4-phenylpimelic acid.  With the exception of the last-named, each of the corresponding acids was isolated by alkaline hydrolysis followed by acidification. Specification 990,084 is referred to.ALSO:Polyesters may be prepared by reacting ethylene glycol or propylene glycol with esters of formula C6H5CQ(CH2CHXCO2Y)2, wherein the benzene ring may be substituted with 1-3 C1-4-alkyl groups and/or Cl atoms, Q is C1-4-alkyl or -CH2CHXCO2Y, X is H or C1-4-alkyl and Y is C1-8-alkyl.  Specification 990,084 is referred to.ALSO:Compounds of formula <FORM:0990083/C4-C5/1> wherein n is 0-3 and R and Q are C1- 4-alkyl, are prepared by reacting in the presence of a Friedel-Crafts catalyst an Rn-substituted benzene with the nitro-compound Q3CNO2.  Reaction is preferably effected at 15-60 DEG  C. in the presence of a solvent or diluent, e.g. nitrobenzene, carbon disulphide or petroleum ether. In Example 8, t-butylbenzene and p-di-t-butylbenzene are prepared from benzene and t-nitrobutane in presence of AlCl3.  Specification 990,084 is referred to.
Patent GB-200034-A (GB)
Title: Modified base-plate for grooved wheel, colliery haulage
IPC: E21C35/00
Filed: 1923-01-31
Abstract: 200,034. Aytoun, R. Jan. 31, 1923. Guide rollers.-The pivot pin E of a haulage roller is made detachable from the base plate by forming it with a wedge-shaped base which engages undercut grooves iii the base plate. The pin is inserted at the left-hand side of the Figure and slides along the base plate towards the right.
Patent GB-1396277-A (GB)
Title: Vehicle safety belt tightener
IPC: B60R22/28
Filed: 1974-01-22
Abstract: 1396277 Safety belts NISSAN MOTOR CO Ltd 22 Jan 1974 [24 Jan 1973] 02965/74 Heading A3V A safety belt is tightened round the occupant of the seat automatically in the event of a collision by a piston and cylinder arrangement attached to each end of the belt. The belt 22 is attached to a hollow cylinder 34 which contains a hollow casing 36 attached to the vehicle by brackets 40 which pass through slots in the wall of the cylinder. In the event of a collision a gas producing charge 60 is activated to push the hollow cylinder towards the right (in Fig. 3) thus tightening the belt.
Patent GB-1027626-A (GB)
Title: Improvements relating to the feed of webs of material
Inventor: STAPLEFORD LEONARD ERNEST
IPC: B65H20/02
Filed: 1962-01-26
Abstract: 1,027,626. Feeding webs. JAMES HALLEY & SONS Ltd. Jan. 18, 1963 [Jan. 26, 1962], No. 3053/62. Heading B6B. A web feeding apparatus has a member the alteration in size of which upon a change in temperature provides a required interaction between a roller and a web to effect feeding. In one embodiment, a knurled roller 6, Fig. 1, has a diameter at ambient temperature too small to provide feeding interaction between web 5 and the roller, but is expanded by heating means to provide such interaction. In another embodiment an embossing roller 13, Fig. 2 (not shown), is heated to effect registration between the roller and matter printed by rollers 11, 12. Driving rollers 24, 26, 28 and 30, Fig. 3 (not shown) are expanded by heating to control the feed rates of ribbons 20, 21, 22, 23. In another embodiment, link 45, Fig. 4 (not shown), may be heated by circulating liquid within the link to control the nip pressure between rollers 40, 41.
Patent GB-1128733-A (GB)
Title: Anti-theft devices
IPC: B60R25/10
Filed: 1966-01-24
Abstract: 1,128,733. Theft alarms. S. UMEDALY. 23 Jan., 1967 [24 Jan., 1966], No, 3063/66. Heading G4N. [Also in Division H4] An anti-theft device comprises a vibrationsensing device and an alarm, the vibrationsensing device being formed by a permanent magnet B resiliently connected to a mounting F for attachment to an object to be protected against thieving, and a solenoid A surrounding the magnet B. The alarm is operated in response to detection of a signal voltage at the solenoid output on oscillation of the magnet produced by vibration. Preferably a diode (D), Fig. 2 (not shown), rectifies the signal voltage and produces a pulsating output arranged to operate a relay whereby to operate the alarm.