baber/WOPTO huggingface dataset:
Patent GB-803480-A (GB)
Title: Improvements in or relating to the acid decomposition of organic hydroperoxides
IPC: C07C37/08
Filed: 1957-06-21
Abstract: Phenols and carbonyl compounds such as ketones are prepared by the decomposition of hydroperoxides of secondary or tertiary alkyl aromatic compounds, in the presence of trichlormethane sulphonic acid as catalyst.  Both the hydroperoxides and the catalyst may be used in pure form or in solution in suitable inert solvents.  It is preferable to use hydroperoxides however, which are in the form of the reaction products of the oxidative process for their preparation, or in admixture with the alkyl-aromatic derivatives from which they were prepared.  The acid catalyst may be dissolved in water, acetic acid, phenol, acetone, the reaction products of the process of the invention, or a mixture of parent alkyl aromatic derivatives from which the hydroperoxides were prepared with one of the above-mentioned substances.  The process may be carried out by mixing the trichloromethane with the hydroperoxides in a reaction vessel at a temperature between about 0 DEG  to 110 DEG  C. depending upon the concentration, and nature of the hydroperoxides, and the impurities present, also the concentration of the acid catalyst and the quantity and nature of its solvent. Suitable amounts of acid catalyst to be employed are from 0.01 to 20 per cent by weight of the solution. Examples are given of the preparation of phenol and acetone from cumene hydroperoxide in cumene, under various conditions of concentration and temperature, in some cases also in the presence of impurities such as a ,a -dimethyl phenyl carbinol and acetone, and of the preparation of phenol and methyl ethyl ketone from secondary butyl benzene hydroperoxide in secondary butyl benzene.  Meta- and para-di-isopropyl benzene are also specified as starting materials. Specification 629,429 is referred to.
Patent GB-478359-A (GB)
Title: Improvements in machines for cutting slots in metal sheets
IPC: B23D27/00
Filed: 1936-07-16
Abstract: 478,359. Shearing. FABRIKSAKTIEBOLAGET HALDATAXAMETERN. July 16, 1936, Nos. 19764 and 19765. Convention dates, July 20, 1935 and Nov. 18, 1935. [Class 83 (iv)] In a machine for slot-cutting, a disc 10 with cutting tooth 26 is supported on trunnions carried by members 6, 7 secured in a frame 5. A flat 16 on the disc rests upon a wobbling member 17 with a lower extension resting in an eccentric recess 21 in a driving pulley 23. The disc 10 is guided in a slot in the members 6, 7 and the tooth 26 co-operates with the edge of the slot to notch a plate supported on the flat surface 8. Holes 31 provide for the exit of the waste. The parts 6, 7, 10 are reversible for renewing the shearing edges. Renewable rings of high grade metal may be substituted for the parts 6, 7 and the cutting tooth 26 may be made detachable. The machine may be driven by an electromotor.
Patent GB-726286-A (GB)
Title: Process for the production of 1-p-nitrophenyl-2-dichloroacet-amidopropane-1, 3-diols
Filed: 1953-07-16
Abstract: Compounds of the formula <FORM:0726286/IV (b)/1> are prepared by reacting the aminodiol with a dichloracetimino alkyl ether (one of the reactants being present as an acid addition salt) in an organic solvent containing at least one equivalent of water below 50 DEG  C., preferably between 20 DEG  and 35 DEG  C.  Under these conditions the formation of oxazolines is minimized.  The aminodiol may be the D-, L- or DL-, threo or erythro form.  In examples the D-(-)-threo, L-(+)-threo and DL-erythro forms are acylated with dichloracetimino ethyl ether in aqueous ethanol and the DL-threo form with dichloracetimino methyl ether in aqueous methanol.  Specifications 652,273 and 716,426 are referred to.
Patent GB-278643-A (GB)
Title: Improvements in travelers for ring twisting frames
IPC: D01H7/60
Filed: 1927-07-26
Abstract: 278,643. Gilligan, G. H. July 26, 1927. Spindle apparatus.-The bearing portions 20, 23 of travellers for ring twisting-frames are formed at an angle to the shank 16 to prevent canting and binding of the traveller. The shank may be curved where it bears against the vertical face of the ring.
Patent GB-1210845-A (GB)
Title: Merocyanine dyes
Inventor: FICKEN GEOFFREY ERNEST
IPC: C09B23/10
Filed: 1969-04-26
Abstract: 1,210,845. Silver halide emulsions. ILFORD Ltd. April 30, 1969 [April 26, 1968], No.19916/68. Heading G2C. [Also in Division C4] Merocyanine dyes for sensitizing silver halide emulsions are of formula:- wherein R 1  is C 1-4  alkyl, aralkyl or aryl; R 2  is alkyl, hydroxyalkyl, alkoxyalkyl, aralkyl, carboxyaralkyl, carboxyalkyl, - (CH 2 ) n  SO 3 H (optionally in salt form),- (CH 2 ) n  SO 2 NHCOR 4 , or - (CH 2 ) n  SO 2 NHR 5 ; n is 1-6; R 4  is alkyl; R 5  is alkyl or aralkyl; Z is H or halogen; D completes a heterocyclic ring; Q is optionally substituted phenyl. The dyes are prepared by conventional condensation reactions. The Examples describe dyes in which R 1  is C 2 H 5  or C 6 H 5 ; R 2  is CH 3 , C 2 H 5  benzyl, phenethyl, #-methoxyethyl, #-hydroxyethyl or p-carboxybenzyl; Z is H or Cl; Q is (p-chlorophenyl)-, phenyl, (2,4-dichlorophenyl)- or (p-tolyl) -; and D completes a 3-ethyl rhodanine ring, a 3-nheptyl-1-phenyl-2-thiohydantoin ring or a 3-ethyl-, 3-benzyl- or 3-(w-sulphobutyl triethylamine salt)- 2-thio-2,4-oxazolidinedione ring.
Patent GB-1221021-A (GB)
Title: Device for attaching and otherwise handling drawing pins and similar thumb tacks
Inventor: TSUNEMI YASUHIKO
IPC: B25C11/00
Filed: 1968-04-26
Abstract: 1,221,021. A device for inserting, extracting and storing drawing pins; drawing pin extractors. Y. TSUNEMI. 26 April, 1968 [5 Oct., 1967], No. 19926/68. Headings B4C and B4W. A device for inserting, extracting and storing drawing pins comprises a casing formed by a top member 10 and a lower transparent member 11, substantially U-shaped in cross-section, a magnet 16 attached to one end of the casing, a circular opening 12 for extracting pins, and a valve member 19 pivoted at 19<SP>1</SP> and having a counterweight 20. A pin when extracted falls into a chamber C, and can be withdrawn via hinged lid 23. In an alternative embodiment a hinged lid 27 is provided in the side wall of the lower member 11, and a further extracting tool 32 is provided adjacent a further magnet 33 which attracts the extracted pin.
Patent GB-834427-A (GB)
Title: Improvements relating to electric timers
IPC: H03K17/288
Filed: 1956-06-28
Abstract: 834,427. Capacitor arrangements. GENE-, RAL ELECTRIC CO. June 28, 1956 [June 28, 1955], No. 20061/56. Class 38 (4). [Also in Group XL (c)] An electric timing arrangement comprises a valve having at least three electrodes, the control grid circuit of which initially contains a timing and a sampling capacitor charged in parallel and a third (bias) capacitor in series with the other two, but short-circuited and wherein the timing period is initiated by disconnecting sampling capacitor from the timing capacitor and connecting it in parallel with the bias capacitor in place of the short-circuit, the duration of the time period being controlled by the discharge of the timing capacitor via a resistance. In this arrangement errors due to variation in the supply voltage are overcome by terminating the discharge at a potential which bears a fixed ratio to the voltage to which the timing capacitor is charged. To initiate a sequence of controlled time intervals, switch 32 is closed, causing the thyratron 1 to strike on positive half cycles of the alternating voltage 4, thus energizing relays 3 and 24. Relay 3 shortcircuits the bias capacitor 9 and charges the timing and sampling capacitors 7, 8 in parallel from rectifier 12 to a voltage E. The negative voltage at the grid 1c prevents the thyratron restriking on the next positive half cycle, hence relay 3 is released, removing the short-circuit from capacitor 9 and transferring the sampling capacitor 8 from across the timing capacitor 7 to the bias capacitor 9. Since capacitor 9 has twice the value of capacitor 8, their combined voltage will be E/3 so that the grid voltage will become - 2E/3. Relay 24 is held energized by the rectifier 36, resistor 37 and contacts 27c and 24e. Capacitor 7 now discharges via the timing resistor 28 (connected by relay 24) until approximately zero grid voltage is reached when the thyratron strikes, energizing relays 3 and 25. Relay 3 discharges capacitor 9 and recharges capacitors 7, 8 thus preventing the thyratron striking on the next positive half cycle. The timing capacitor 7 now discharges via the timing resistor 29 (connected by relay 25). Similarly, relays 26, 27. become energized after periods controlled by resistors 29, 30 respectively. Relay 27 releases relays 24, 25, 26 and connects the timing resistor 31. If switch 33 is set to Repeat (R), relay 27 is released by the opening of contacts 24e. After a period controlled by timing resistor 31, the complete sequence is repeated. If switch 33 is set to Non-repeat (N.R.) relay 27 is held energized by its hold in contacts 27f and the switch 32, until the sequence is restarted by opening and reclosing switch 32. Two single interval timers are described in Group XL (c).
Patent GB-1261032-A (GB)
Title: Apparatus for stripping brussels sprouts from their stalks
IPC: A23N15/01
Filed: 1968-04-29
Abstract: 1,261,032. Stripping brussels sprouts from plant stalks. BRUFF MFG. CO. Ltd. April 11, 1969 [April 29, 1968], No.20130/69. Heading A4C. Apparatus for stripping brussels sprouts from plant stalks comprises a plurality of cutters 24 which co-operate to form a split tube, the tube tapering near one end, each cutter being sharpened at one end (26), which end forms part of the narrower end of the tube, and having a secondary sharpened part (27) adjacent end (26), Figs.4 and 5 (not shown), part (27) being overlapped by an adjacent cutter when the cutters are in a radially inward position, means for mounting the cutters and adapted to allow radially outward movement of the cutters, with respect to the axis of the split tube, against the action of resilient biasing means 28, and means (33) Fig.2 (not shown) for moving a stalk through the centre of the tube. The cutters 24 are mounted in a head (12), Figs. 1 and 2 (not shown) comprising a front annular plate 18, rear annular plate 17 and a spacer plate 19. The plate 19 has equi-spaced radial slots 20, which reveive radial arms 23 carrying the cutters 24, and a circumferential groove 21 accommodating an angularly movable annular cam 22. Adjacent outer ends of the arms 23 are connected by coiled tension springs 28. The cam 22 co-operates with rollers 29 on arms 23 to move the cutter radially outwards to allow initial insertion of a stalk in the head (12), the cam 22 having a semi-circular plate 31 secured to it. The plate 31 may be rotated about the tube axis by an operator actuating a pedal which pulls a cable 32 attached to a radial arm on plate 31. The head (12) is attached to a frame 13 and to leaf-springs 14 by arms on the plate 17. The head (12) may be reciprocated along said tube axis by an eccentric (15), Fig.2 (not shown), driven by an hydraulic motor (16) which also drives counter-rotating toothed rollers (33). The rollers (33) draw a stalk through the head (12) causing the sprouts to be stripped off by cutting edges (26, 27). Edges (27) are effective in removing material passing between edges (26) as these are caused to separate by variations in stalk cross-section. Stripped sprouts and leaves fall on to a conveyor (34) Fig.2 (not shown) the sprouts being separated and delivered to a container (35) Fig. 1 (not shown). Two heads (12) are each supported by springs 14 and a frame (13) on a further frame (11), Fig. 2 (not shown). The frame (11) and container (35) are carried on a tractordrawn trailer (10), Fig. 1 (not shown).
Patent GB-369498-A (GB)
Title: Licence carrying device for motor cars and the like
IPC: B60R13/10
Filed: 1931-07-13
Abstract: 369,498. License-holders for motor vehicles. ABBIATI, A., Montevecchia, Brianza, Italy. July 13, 1931, No. 20131. Convention date, March 24. [Class 73.] A license-holder for motor vehicles, of the kind which is affixed to the windscreen and has a detachable cover with a bayonet slot attachment, the blades 4 are attached to supports on the cover 10 by screws and lie between projections 9 on the supports. The cover is provided with a pocket forming an ash tray &c.
Patent GB-671360-A (GB)
Title: Magnetic escapements for timepieces
Inventor: MFREDITH FREDERICK WILLIAM
IPC: G04C5/00
Filed: 1948-07-28
Abstract: 671,360. Clocks and watches. SMITH & SONS (ENGLAND), Ltd., S. July 28, 1949 [July 28, 1948], No. 20185/48. Class 139 A timepiece escapement of the kind in which an oscillatory member is maintained in oscillation through an arc by impulses imparted to it from an escape wheel and the escape wheel is locked by the oscillating member, the coaction between the oscillating member and the escape wheel being solely by means of magnetic forces between magnetic members carried by them, is characterized in that the fraction of the arc over which locking takes place is longer than that over which impulsing takes place, in that the magnetic members are so shaped and arranged that the reaction on the oscillatory member when the escape wheel is locked produces substantially no torque on the oscillatory member which would interfere with its oscillation, and in that the unlocking and relocking of the escape wheel occurs in such a manner that the effective impulse for each direction of oscillation, is concentrated at the mid-point of the arc. The escape wheel 20, Figs. 1, 2, carries a plurality of soft iron pins 8-19, which co-operate with tracks 6, 7 on disc-shaped soft iron pole pieces 3 and 4 of a permanent magnet 2 on the balance arbor 1. The tracks 6, 7 are broken and forked as shown in Fig. 2, at 22 and 23, to allow step-by-step escaping of the wheel 20. As one pin, e.g. pin 15, leaves the branches 25 of the forked ends 23 another pin 19 engages the branches 28 of the forked ends 26 as the discs 3, 4 swing in one direction. The same action takes place on the return swing of the discs 3, 4 in which swing the upper branches 27, 24 of the forked ends 22, 23 co-operate with the pins 19 and 16. The magnetic interaction between the pins and the forked ends of the tracks produces the maintaining impulses. Specification 644,000 is referred to.
Patent GB-903998-A (GB)
Title: Improvements in or relating to roofing tiles
IPC: E04D1/16
Filed: 1960-06-08
Abstract: 903,998. Roofing tiles; roofs. REARDON, J. M. Nov. 22, 1960 [June 8, 1960], No. 20195/60. Classes 20 (4) and 87 (1). A clay or concrete roofing tile having hanging ribs 6 is provided with interlocking side edges 21 and with a bevelled edge 14 inclined parallel to the edge 8 of the rib. The tile is arched so that the upper end 15 is slightly inclined backwardly from the main part 20. In a roof the tiles overlap and are supported with the surfaces 8, 14 abutting surfaces of battens of parallelogram section.
Patent GB-462100-A (GB)
Title: Improvements in and relating to the burners of hurricane lanterns
IPC: F21L19/00
Filed: 1936-07-22
Abstract: 462,100. Wick burners. NIER, B. July 22, 1936, No. 20265. Convention date, Aug. 12, 1935. [Class 75.(i)] A flat flame plate a mounted on the wick sheath e of a hurricane lantern burner is embraced by the burner hood g, so as to ensure the sheath and hood being retained in correct position. The flame plate may be formed with a depending flange attached to the burner hood or, as shown, with a skirt f attached to the lower part c of the burner. The skirt f may be extended downwards to engage the wall of the oil well. The hood g fits over the skirt f, positioning notches being provided, if desired. In addition or instead of the usual perforations k, apertures h, i may be provided for the passage of air to the flame. Heat-insulating material may be provided between the flame plate and wick sheath.
Patent GB-983587-A (GB)
Title: Modified 1:2-epoxy-hydrocarbon polymers and process for their manufacture
IPC: C08F283/06
Filed: 1961-06-05
Abstract: A graft copolymer consisting of 50 to 99.0% by weight of a 1,2-epoxyhydrocarbon as a trunk polymer and 1 to 50% by weight of a vinyl ester of a saturated C1-C4 aliphatic monocarboxylic acid grafted thereon is alcoholysed to convert at least 80% of the vinyl ester groups to vinyl alcohol groups.  The alcoholysis may be carried out under alkaline or acid conditions, using a C1-C4 monohydric alcohol as the alcoholysing agent.  The examples describe grafting vinyl acetate on to polyethylene and polypropylene glycols, and alcoholysing the resulting graft copolymers with methanol. Specifications 922,457, 922,458, 922,459 and 975,245 are referred to.
Patent GB-575572-A (GB)
Title: Improvements in grain drying apparatus
IPC: F26B17/12
Filed: 1943-12-06
Abstract: 575,572. Apparatus for drying grain. CARR, J. B., and HANDLEY, C. G. Dec. 6, 1943 No. 20318. [Class 34 (ii)] [Also in Group I] In apparatus for drying grain of the kind, for example, in which the grain falls by gravity down vertical passages D having perforated lateral sides and through which hot drying air or gases flow from inlet to exhaust passages b, bl respectively on opposite sides of said grain passages D, the rate of discharge of grain from the apparatus, and hence the degree of drying, is controlled by a thermostat H which is preferably located in one of the exhaust passages b<1>. The apparatus actually shown comprises a drying section B, a cooling section C and a receiving hopper G, with a two-part grid interposed between the cooling section and hopper. This grid consists of fixed longitudinal shelves E disposed below the passages D and a reciprocable frame F in the form of transverse members f with cross slats f<1> corresponding in number to the said passages D, the frame F, when reciprocated, causing the slats f to push the grain from the shelves E into the hopper G. This reciprocation of the frame F is effected through a plate J, pivotally mounted on a pin j extending from a bracket j<1> on the casing of the apparatus, by a connecting rod P which is itself reciprocated at a controlled frequency by the means described, e.g., in Specification 566,516, [Group XXIV], the length of stroke of the frame being determined by the thermostat H. The latter is preferably in the form of a metal tube containing oil and is connected by a tube h to a bellows h<1>, one end of which is mounted on the plate J and the other end being secured on a plate M which is adapted to slide in guides j on the plate J and has its forward edge provided with a V-notch m to be engaged by a pin n on an extension N of the connecting rod P. The arrangement is such than an increase in temperature of the exhaust gases causes the liquid in the thermostat tube H to expand and the plate M to move forward, so that the pin n is engaged by the narrower end of the notch m to increase the rocking movement of the plate J and consequently the stroke of the frame F which is connected to the plate J by an extension f<2> of one of the members f and a stud f<3>; alternatively, a fall in temperature of the exhaust gases will effect a withdrawal of the plate M to a position where the wider part of the notch m is in alignment with the pin n and the stroke of the frame is correspondingly reduced.
Patent GB-822592-A (GB)
Title: Carbazole derivatives and process for the production thereof
IPC: C07D401/06
Filed: 1957-06-27
Abstract: The invention comprises carbazole derivatives of the general formula <FORM:0822592/IV (a)/1> (wherein R1 represents an alkyl group of 1-4 carbon atoms, R2 hydrogen or an alkyl group of 1-4 carbon atoms, and R3 a hydrogen or halogen atom or an alkyl or alkoxy group of 1-4 carbon atoms, x is 0, 1 or 2, and the point of linkage with the carbazole radical is in the 3- or 4-position of the piperidine ring when x is 0 and in the 2-, 3- or 4-position when x is 1 or 2) and their acid addition salts, and the preparation thereof by reacting carbazole or a derivative thereof, of the general formula <FORM:0822592/IV (a)/2> with a pyridyl halide or pyridylalkyl halide of the general formula <FORM:0822592/IV (a)/3> in the presence of an alkaline condensing agent in an inert solvent, quaternizing the pyridine nitrogen atom with an alkyl halide R1.X (X = halogen) and catalytically hydrogenating the resulting pyridinium salt and, if desired, forming an acid addition salt of the carbazole derivative produced.  The products are useful for therapeutic purposes (see Group VI).  Specification 809,488 is referred to.ALSO:Carbazole derivatives of the general formula <FORM:0822592/VI/1> (wherein R1 represents a C1-4 alkyl group, R2 hydrogen or a C1-4 alkyl group, and R3 a hydrogen or halogen atom or a C1-4 alkyl or alkoxy group, x is 0, 1 or 2, and the point of linkage with the carbazole radical is in the 3- or 4-position of the piperidine ring when x is 0 and in the 2-, 3- or 4-position when x is 1 or 2), or their acid addition salts, may be used for potentiating the analgesic effect of morphine or for counteracting the hypotensive effect of sympatholytic substances such as "Dibenamine" (Registered Trade Mark) or Chlorpromazine. Specification 809,488 is referred to.
Patent GB-1394772-A (GB)
Title: Bending machine for rod or strip material
IPC: B21D11/12
Filed: 1973-04-30
Abstract: 1394772 Bending EVG ENTWICKLUNGSUVERWERTUNGSGESELLSCHAFT mbH 30 April 1973 [2 May 1972] 20464/73 Heading B3E A machine for bending rod or strip, e.g. concrete reinforcements, comprises two bending heads of adjustable separation, one head nearer an infeed path being fixed and the other head being pivotable about the location of the first head, the pivotal movement and the bending motions of the heads being coupled so that the two heads make simultaneous equal and opposite bends, and the second head and a bending tool - of the first head being movable out of the plane of bending. The apparatus of Figs. 6 and 7 is intended to produce the reinforcement of Fig. 2, rod being fed to the machine along line V-V through a feed device, straightener, and measurer operable to control the feed and a shear device (not shown). The leading end of the rod is formed to a hook H by rotary tool 30 and mandrel 31 operated by worm drive 32, 33 and lowerable to inoperative position by cylinder Z 4 . The two bends at P1 and P2 are formed by two bending heads respectively comprising mandrels 24 with rotary tools 17, and mandrels 12 with rotary tools 13. Mandrels 24 are mounted on or integral with frame member 3, and tools 17 and mandrels 12 are on an arm 5 pivoted on frame member 3, while tools 13 are on arm 13a pivoted on arm 5. Frame 3 with both heads can be raised and lowered by cylinder Z 2 , and the arm is pivotable by motor 28 through pinion 26 and sector 25. Arm 13a is driven by bevel gears 4, 9, 11, 15, so that operation of motor 28 results in the equal and opposite bends P1, P2. The heads are lowered and recentered, the rod advanced, the heads raised, and bends P3, P4 made by reverse operation of motor 28. Finally the second hook H is formed in any desired fashion. In another embodiment, Fig. 5 (not shown), the first hook H is made by the first head, for which purpose the mandrels (16) and tools 17 are mounted independently of frame 3, so that when the frame is lowered, the first head can be in the operative position to form the hook, and when the frame is raised, tool 17 and arm 5 are coupled for simultaneous rotation.