baber/WOPTO huggingface dataset:
Patent GB-615543-A (GB)
Title: Process for the production of aldehydes and ketones
IPC: C07C45/48
Filed: 1946-01-15
Abstract: Ketones and aldehydes are obtained by introducing one or more carboxylic acids into a suspension of a decarboxylation catalyst in a heated liquid which is substantially unchanged at the temperature employed and is substantially inert to the catalyst, the reagents and the reaction products.  In this way aldehydes are obtained from formic acid and another carboxylic acid, symmetrical ketones are obtained from a single carboxylic acid other than formic acid, and asymmetrical ketones are obtained from two carboxylic acids, neither of which is formic acid.  The liquid may be a high-boiling mineral or synthetic oil, tricresyl phosphate or diphenyl, and the catalyst may be an oxide of manganese, iron or thorium or alumina or manganese acetate.  The acid or acids may be preheated and may be introduced into the catalyst suspension in either the vapour or the liquid phase.  The reaction temperature may be 280-350 DEG  C.  In an example, super-heated acetic acid vapour is passed into a suspension of manganese acetate in a high-boiling paraffinic oil heated to 300-330 DEG  C., and acetone is recovered from the distillate by rectification.  Examples are given also of the production in similar manner of (1) heptanone-4 from butyric acid, (2) acetone, pentanone-2 and heptanone-4 from a mixture of acetic and butyric acids, (3) acetone, acetophenone and benzophenone from a mixture of acetic and benzoic acids, (4) isovaleric aldehyde from a mixture of isovaleric and formic acids and (5) phenylacetaldehyde from a mixture of phenylacetic and formic acids.  Samples have been furnished under Sect. 2 (5) of the following products, prepared as described above: (1) benzylmethyl ketone from acetic and phenylacetic acids, (2) cyclopentanone from adipic acid, (3) 2-tetrahydrofurylmethyl ketone from acetic and 2-tetrahydrofuroic acids and (4) 2-furylmethyl ketone from acetic and 2-furoic acids.  The Specification as open to inspection under Sect. 91 mentions the application of the process to substituted aliphatic acids, such as chloracetic or cyanoacetic acid; salicylic acid; aralkylene carboxylic acids such as cinnamic acid; dicar-boxylic acids generally, including pimelic acid; and mixtures of any of these acids with formic acid.  It states also that the acid or acids may be taken in the form of a solution in an organic solvent.  Dibenzyl ketone is another specified product.  This subject-matter does not appear in the Specification as accepted.
Patent GB-754217-A (GB)
Title: Improvements relating to turbine blades
IPC: F01D5/18
Filed: 1954-01-18
Abstract: 754,217. Turbine blades. GENERAL MOTORS CORPORATION. Jan. 18 1954 [Jan. 30, 1953], No. 1375/54. Class 110(3) [Also in Group XXII] A turbine blade or nozzle guide vane comprises two halves formed by casting the two halves each having an outer surface forming one side of the aerofoil and root profile and an inner surface having grooves, the two halves being joined together along a spanwise junction surface by a metal fusion process, the grooves forming spanwise cooling passages in the aerofoil portion and duct means in the root by which cooling fluid is supplied to the passages. In Figs. 1 and 5 the turbine rotor blade comprises two halves 17, 18, the abutting surfaces 19 of which are formed with longitudinal grooves. 22, 23 adjacent the leading and trailing edges, and grooves 24 therebetween, which grooves upon assembly form closed passages. The root portion of the blade is formed with passages 31, 33, 34 which communicate with the longitudinal passages 22, 23, 24 so that cooling fluid such as air supplied through the passage 32 in the rotor can flow through the blade and discharge at the tip. The ribs 26 between the grooves provide a large heat exchange surface. The abutting surfaces are connected by brazing. In a second embodiment. Figs. 6 and 10 the two blade halves do not abut face to face but a metal sheet 38 is interposed therebetween and is bonded to each of the blade halves. Also. the larger grooves 22, 23 are omitted. The grooves 24<SP>1</SP> extend from the blade root to the tip. but the grooves 37 extend only to an intermediate point along the blade. The sheet 38 is cut away towards the tip of the trailing edge so that a narrow space is formed into which the grooves 37 discharge. Cooling air is supplied as in the first embodiment.
Patent GB-1281503-A (GB)
Title: Improvements in or relating to stranding machines
Inventor: MARTINEZ MARIO
IPC: D07B3/06
Filed: 1970-01-12
Abstract: 1281503 Stranding machines M MARTINEZ 29 Dec 1970 [12 Jan 1970] 1402/70 Heading D1T The rotatable shaft 20 of a stranding machine has secured thereto one or more hub members 22, each hub member 22 carrying four spool supporting mandrels 25, 25, 26, 26 arranged as shown in Fig. 3. Each mandrel has retractable latches 32 for retaining a spool on the mandrel.  The hub members 22 are housed in a cylindrical guard 33 having an upper portion 34 which can be rotated through 180‹, or moved longitudinally of the machine, to give access to the spools. Between each pair of hubs 22 is a die carrying plate 28 that is clamped about the shaft 20. Each mandrel 25, 26 is provided with a brake 27 which serves to control the tension in the wire. The apparatus includes a wire break detection ring 30a.
Patent GB-122648-A (GB)
Title: Improvements in Ribs for Aerofoil Frames.
Inventor: RAPP JOHN WILLIAM
IPC: B64C1/08
Filed: 1919-01-20
Abstract: 122,648. Rapp, J. W., (Assignee of Vanorio, J.). Jan. 19, 1918, [Convention date]. Framework.-V-shaped struts 3, Figs. 1 and 7, are cut from the sides of an aeroplane rib formed as a box girder and stamped from a metal sheet 2, Fig. 2, or two sheets 8, 10, Fig. 4. In the former case, a flange 6 is provided for welding, and, in the latter case,either flanges 12, 13 or abutting edges 14, 15, Fig. 6.
Patent GB-620365-A (GB)
Title: A collapsible thermotherapy bed
IPC: A61H35/00
Filed: 1947-01-16
Abstract: 620,365. Hot-air baths. CASTILLO, M. Jan. 16, 1947, No. 1470. [Class 26] [Also in Groups VI and XIV] A collapsable hot-air bath comprises telescopic heating chamber sections 1, 2, 3 slidably mounted on guide rails 5 fixed to the sides of the bath, at least one of the sections having mounted within it an air chest 24 to which a controlled supply of heated air is led by a pipe 22 and from which the air issues to the heating chamber. The sections comprise arcuate or rectangular channel-shaped members of plywood lined with asbestos and have rollers running in the guides. The pipes 22 are removably attached to each side of the central section 1 and arranged over burners 28 on stands 27. The air chests 24 communicate with ducts 25 having downwardly directed apertures 26. A thermometer 31 is provided and valves are fitted in the pipes 22. The bath has folding legs 15 and hinged adjustable head and foot sections 8, 7. Electrical heating means may be used.
Patent GB-141143-A (GB)
Title: Machine for applying paint or composition to the exterior of the hulls of ships and like vessels
IPC: B05C1/00
Filed: 1919-01-21
Abstract: 141,143. Fagerberg, J. H. Ferguson-, and Ekberg, S. Jan. 21, 1919. Hulls, cleaning.-A machine for cleaning or painting the exterior of hulls of ships &c. is mounted on a wheeled truck and is moved by hand or power, the brushes being operated either from the land wheels or bv a motor mounted on the machine. A paint tank A is spring- mounted on a wheeled truck A<1> and is adapted to be raised slightly by the handles a<2>. In the open top of the tank are mounted a number of brushes comprising a rotary brush D at the front, dabbing brusnes D', longitudinally travelling endless-band brush D<2>, D<4>, and a transversely travelling endless-band brush D<3>. The brushes may be driven from the wheels a of the track by a chain e which passes over spring- mounted guide rollers F, F<1>. Paint is supplied to the brush D either by a ladle G reciprocated by a crank-wheel G<2> or by a trough supplied by a, pump, buckets, or the like. The top of the container A may be surrounded by bristles in spring- mounted blocks to prevent splashing of the paint. A motor to propel the machine and operate the brushes either together or separately may be mounted on the frame. The brushes are mounted so as to be readily removable. Wire brushes are substituted when the machine is used for removing old paint, rust, &c. from the surfaces.
Patent GB-157822-A (GB)
Title: A method of recovering oil from fish liver and the like
IPC: C11B1/00
Filed: 1921-01-10
Abstract: Fish and like oils are extracted by centrifuging the comminuted mass, preferably at 20-40 DEG  C., in a separator with a sharp-edged skimming pipe to divide and permit the continuous outflow of the residue.
Patent GB-196097-A (GB)
Title: Improvements in or relating to machinery or apparatus for use in the manufacture of envelopes and the like
IPC: B31B23/00
Filed: 1922-01-18
Abstract: 196,097. Dickinson & Co., Ltd., J., and Hawdon, F. G. Jan. 18, 1922. Envelopes, making.-In machines for the continuous manufacture of envelopes &c. from a reel of paper, cylinder or rotary blank cutting and feeding mechanism is used in conjunction with folding mechanism of the reciprocating or plunger type. The paper is drawn from the reel 1 by friction rollers 5, 5a the upper of which is carried by bell cranks 8 which are rocked to separate the rollers by rotating the shaft 9. The paper passes between collars adjustably mounted on a laterally adjustable shaft 10 and below plates 13 attached to a shaft 12 which can be turned to vary the pressure. The rollers 14a, 15<a>, 16a are provided with peripheral hardened steel cutters for forming the blank, but these cutters may be formed only on one or two rollers. The lower rollers 14, 15, 16 are formed with hardened steel faces to coact with the cutters. The trimmings are forced into gripping members on a roller 17 by blades flexibly mounted on the roller 17<a> and delivered into a suction pipe 29. The blank is severed by rollers 18, 18a of similar construction to the rollers 14, 14a. The blank is fed to racing rollers 21a, 21 by rollers 19, 19<a>, 20, 20<a>, the latter pair of which may be printing rollers. Part of the surface of the roller 21<a> is cut away in order that a blank may not be gripped before it has left the rollers 20, 20<a>. As a blank leaves the racing rollers 22, 22a, its rear edge is engaged by spring-controlled fingers 27a on chains 25a and it is fed to a table 26 where is is held by a rubber faced clamp. The fingers 27a are depressed at the required intervals by inclines 28, 28<a>. The gumming of the flap, folding &c. is effected as usual in plunger type folding machines.
Patent GB-469109-A (GB)
Title: Manufacture and application of improved preparations for colouring rubber
IPC: C09B67/00
Filed: 1936-01-17
Abstract: As colouring matter in the preparations for colouring rubber according to the parent Specification there are employed phthalocyanines with or without the disazo compound obtained by coupling tetrazotized 3 : 3<1>-dichlorobenzidine with 2 mols. of acetoacet-o-toluidide.  The phthalocyanine and the disazo compound may be incorporated into separate colouring preparations and the colouring preparations then mixed.  Phthalocyanines specified are copper phthalocyanine and metal-free phthalocyanine prepared according to Specification 389,842.  Specification 452,438, [Group V], also is referred to.ALSO:As colouring matter in the preparations for colouring rubber according to the parent Specification there are employed phthalocyanines with or without the disazo compound obtained by coupling tetrazotized 3 : 31-di chlorobenzidine with 2 mols of acetoacet-o-toluidide.  The phthalocyanine and the disazo compound may be incorporated into separate colouring preparations and the colouring preparations then mixed.  Phthalocyanines specified are copper phthalocyanine and metal-free phthalocyanine prepared according to Specification 389,842, [Group IV]. Specification 452,438 also is referred to.
Patent GB-735660-A (GB)
Title: Improvements in fluid-tight joints between tubular or partly tubular elements
IPC: F16J15/04
Filed: 1953-01-20
Abstract: 735,660. Caps for resisting fluid pressure. GRATZMULLER, J. L. Jan. 20, 1953 [Jan. 23, 1952], No. 1635/53. Class 123 (1). [Also in Group XXVIII] A fluid-tight joint is formed between two interfitting tubular or partly tubular members such as a cylindrical pressure-fluid container 10 and a screw cap 11, by providing an annular lip 17 on the cylinder adapted to engage and be bent inwardly by a conical surface 14 on the cap. The lip has a rectangular cross-section in a radial plane, and its axial length is greater than its radial thickness but less than that of an annular part 16 the end of which by engaging a flat surface 15 on the cap limits the radial distortion of the lip. Fluid escaping between the surface 15 and the contacting surface on the part 16 will enter a groove 18 and press the lip 17 against the surface 14. The lip is intended to retain some of its elasticity after distortion. In a modification, Fig. 4 (not shown), the cap is bolted to the cylinder. Specification 9916/07, [Class 99], is referred to.
Patent GB-523935-A (GB)
Title: Improved means for separating, counting and delivering various objects
IPC: A61J7/02
Filed: 1939-01-18
Abstract: 523,935. Counting-apparatus ; photo-electric apparatus. WHITEHEAD, S. W. M. Jan. 18, 1939, No. 1736. [Class 106 (i)] [Also in Group XL] In a device for delivering articles one by one and for stopping the delivery after the passage of a predetermined number, the articles are placed on a smooth rotary disc 14, Figs. 2, 5, situated below a vertical wall 16 having a gap through which protrudes a guideway 21, 22 of such dimensions that the articles travel along it in single file. The vertical wall 16 has a portion eccentric to the disc 'and the guideway has a splayed end 22. As each article passes over a gap 200 it interrupts a light beam and thereby, through photoelectric means, causes the energization of a magnet 41, Fig. 6, which attracts an arm 280 carrying a pawl 28 actuating a ratchet wheel 24. Overthrow is prevented by a fixed stop 42 having a shaped end 54 With which the pawl 28 engages. After a predetermined number of articles has passed, a notch 36 in a disc secured to the ratchet wheel comes adjacent a projection 35 on a contact arm 38, the arm moving to close contacts 39 in the circuit of a magnet which rocks an arm 23, Fig. 5, to bring its end through an aperture 18 in the guideway 21 and so to stop the passage of the articles. In a modification, Fig. 8, the pawl 28 operating the counting ratchet wheel 24 is actuated directly by the articles, a roller 45 on the pawl-arm 50 passing through an opening in the guideway and being lifted by each article. In a further modification, an arm similar to the pawl-arm is rocked by each article to close contacts in the circuit of a ratchetoperating magnet.
Patent GB-1413770-A (GB)
Title: Process for manufacturing bonded panes
IPC: B32B17/10
Filed: 1974-01-14
Abstract: 1413770 Making laminated glass panes FLACHGLAS AG DELOG-DETAG 14 Jan 1974 [13 Jan 1973] 01768/74 Heading B5N A laminated pane is made by peripherally gripping an assembly of (i) a glass sheet, (ii) an interlayer and (iii) a synthetic resin cover layer, having one or more surface layers, for modifying optical properties and improving resistance to scratching, with an elastic surround, evacuating air from the assembly through the surround, and bonding the assembly, the cover (iii) being held in gripped condition during evacuation and bonding to prevent shrinkage. The elastic surround may provide the necessary gripping of cover (iii). Evacuation may be assisted by pressure and temperature, and bonding may take place in an autoclave. The cover (iii) may be smaller than the sheet (i) and may be protected by a polished metal sheet during bonding.
Patent GB-587859-A (GB)
Title: Improvements in or relating to automatic temperature control devices
IPC: A01K41/00
Filed: 1945-01-24
Abstract: 587,859. Automatic control systems. RAVEN, C. W. Jan. 24, 1945, Nos. 1863/45 and 4988/46. [Class 38 (iv)] Temperature control.-An automatic temperature control device comprises an adjustable thermostat which normally effects the temperature control and a reserve adjustable thermostat which takes over the temperature control if the first thermostat fails and also operates an alarm to draw attention to this failure. Thermostats 21, 22 are secured to a spring strip 18 and calibrated by adjustment of knobs 15, 16. When the temperature exceeds a required value, the thermostat 21 expands, presses against the pin 27 which then moves the lever 23 from the contact 26 to the contact 25 ; the heater circuit is thus broken. If the thermostat 21 fails to operate, then, after the temperature has risen a little higher, the thermostat 22 expands sufficiently to move the pin 32 which then presses the lever 28 away from the contact 31 on to the contact 30 and the heater circuit is thereby broken. Also an electrical circuit including a bell is closed and attention is drawn to the fact that the thermostat 21 has failed. In a modification, thermostat 21 controls the cooling apparatus of a refrigerator. Thermostat 22 being set to cut off the cooling effect at a temperature slightly lower than that of thermostat 21. In another modification, two reserve thermostats are used. One operates when the temperature rises above a maximum limit and the other operates when the temperature falls below a minimum limit.
Patent GB-1259677-A (GB)
Title: Articulated containers
Inventor: GILSON WARREN ELLSWORTH
IPC: G01N35/02
Filed: 1969-01-13
Abstract: 1,259,677. Container for chemical analysis. W. E. GILSON. 13 Jan., 1969 [1 Feb., 1968], No. 1937/69. Heading B1X. A container Fig. 1 for handling liquids which can be linked to similar containers in an articulated manner for use in analysis apparatus as described in Specification 1,259,678 comprises complementary link forming members 24 and 26. The container may be transparent and comprise lens 34. Member 12F is suitable shaped for engagement with a cog of a driving gear wheel.
Patent GB-650966-A (GB)
Title: Improvements in cold producers for refrigerator cabinets
IPC: F25B39/02
Filed: 1948-01-22
Abstract: 650,966. Refrigerating. ELECTROLUX, Ltd. Jan. 22, 1948, No. 1941. Convention date, Feb. 4, 1947. [Class 29] Evaporator coils 12, 13 of an absorption refrigerating apparatus of the inert gas type operating at different temperatures are enclosed in a housing 11 with air inlet and outlet openings 16, 17 and thermally separated by an insulating layer, such as an air layer, from the evaporator elements so that its outer surface is maintained above the dew point. Air from the storage chamber enters the housing through a grid 16 at the front, passes over the coils and leaves the housing through the opening 17. Moisture condensed in the coils drains through the opening 17 into a receptacle. Ice trays inserted through an aperture 15 rest upon a plate supported by the low temperature coil 12. The housing has brackets slidably engaging rails secured to the coil 12 and is placed on the coils after the latter has been inserted through the apparatus window 22 which can thus be made smaller. The housing may be made of or covered with synthetic resin. The gas heat exchanger 14 is also enclosed in the housing, and the refrigerant inlet pipe 20 is in heat exchange with the pipe 21 leading refrigerant from the low temperature evaporator to the high temperature evaporator. The Specification as open to inspection under Sect. 91 includes also a modification, Fig. 5 (Cancelled), in which a single coil 12 is disposed in a horizontal plane and a metal housing, attached thereto before insertion through the window, has its upper surface recessed to receive ice trays. Air enters at 16 and leaves at 17. This subjectmatter does not appear in the Specification as accepted.
Patent GB-924402-A (GB)
Title: Improvements in and relating to peak electrical signal indicators
Inventor: BERRY SIDNEY DUNDAS
IPC: G01R19/04
Filed: 1961-01-17
Abstract: 924,402. (Peak voltage measurement; electric analogue calculating. BRITISH BROADCASTING CORPORATION. Jan. 16, 1962 [Jan. 17, 1961], No. 1948/61. Class 37. A peak signal indicator comprises a rectifier, logarithmic network, and meter in cascade; the logarithmic network shunted across the rectifier consisting of a diode and resistance in series and another diode and resistance in series across the first resistance, with the diodes having logarithmic characteristics and conducting in the same direction. An input signal is coupled by transformer 12 and a resistance network to a push-pull amplifier comprising transistors 13, 14 and 15, 16, connected as pairs each behaving as a single transistor with current gain equal to the product of the current gains of individual transistors; biased from potential dividers 17, 18; 19, 20 through secondary windings 21, 22 and stabilized by emitter resistors 23, 24 shunted by capacitances 25, 26. The potential dividers connected between the collectors and earth provide balanced feedback to the bases in series with secondaries 21, 22 under control of resistances 27, 28, and grouped selector switches 29, 30 vary the gain. The transistor outputs are coupled over transformer 31 to a diode bridge 33 whose output is shunted by fixed and variable resistors 34, 35 in series with non-linear diodes 36, 37; the resistance combination being also shunted by variable resistance 38 in parallel with diode 41 and resistance 40; all in series with diode 39. The logarithmic output unidirectionally charges capacitance 42 over diode 43 and resistance 51, and the resultant voltage is resistance coupled to a longtail pair amplifier comprising transistors 47, 48 and 49, 50 connected in pairs as above with negative feedback over resistances 52, 53 controlled by resistance 54 with balance adjustable by resistance 55; the output being connected to a meter 51 graduated in decibels with zero adjustment by resistance 55 and the asymmetrical discharge time being controlled by resistances 45, 46. The Provisional Specification states that the transistor amplifiers may be formed as printed circuits.
Patent GB-398708-A (GB)
Title: Adjustable spraying nozzle for fire extinguishing purposes
IPC: B05B1/12
Filed: 1933-01-20
Abstract: 398,708. Spray-producers. STEIN, P., 8, K÷lnerstrasse, Magdeburg, Germany. Jan. 20, 1933, No. 1951. [Class 69 (iii).] A spraying nozzle for producing a cylindrical spray or a conical spray of variable angle consists of a main element 1 to which a funnelshaped mouthpiece 12 is adjustably secured, the mouthpiece comprising a front part 15 having a cylindrical neck 13 and a convex guide surface. A guide element 6 is carried by a bridge 5 on the main element 1 and has a cylindrical front portion 10 and a curved tapering rear portion 4a. An intermediate element having a curvature corresponding to that of the part 4a is carried on the front of the main element 1. By adjusting the mouthpiece 12 relative to the guide element 6 a cylindrical spray or a conical spray is produced. When the intermediate element 4 is moved into its foremost position, it engages the part 4a to close the opening and shut off the jet.