baber/WOPTO huggingface dataset:
Patent GB-876845-A (GB)
Title: Improvements in or relating to constricting devices
Inventor: DAW REGINALD FRANK
IPC: B60C25/14
Filed: 1957-02-05
Abstract: 876,845. Clamp fastenings. DUNLOP RUBBER CO. Ltd. Jan. 10, 1958 [Feb. 5, 1957], No. 3876/57. Class 44. [Also in Group XXXIV] A constricting device for tubeless pneumatic tyres comprises a flat flexible substantially inextensible member 1 for encircling the tyre tread, a fastener connected with one end of the member for rigidly holding the member after adjustment to length has been made, the fastener comprising a rigid open-ended box through which the member passes having a thumb screw 16 threaded through the top of the box for clamping the member against a bottom plate 10 of the box and a lever 3 and toggle linkage 4 attached to the fastener and to the other end of the member so that when the member is adjusted to encircle a tyre cover, actuation of the lever and toggle linkage tensions the member circumferentially around the tyre tread. The base of the box is provided with two steel strips 15, 19 which distort the flexible member to aid the fastening.
Patent GB-1114271-A (GB)
Title: Improvements in machines for the blowing of hollow articles of thermoplastic material
Inventor: SAFFRON RONALD GEORGE
IPC: B29C49/30
Filed: 1965-01-29
Abstract: 1,114,271. Blow-moulding; continuous rotation; extrusion. SAFLEX Ltd. 31 Jan., 1966 [29 Jan., 1965], No. 3977/65. Heading B5A. An extrusion-blow-moulding machine comprises means (14, Fig. 1) to extrude tubular parisons (15), severing means (16), a carrier (1) having a plurality of split moulds (10a, 10b), movable at a constant speed to bring the moulds serially into and beyond an extrudatereceiving position aligned with the extrusion orifice, pick-up means (18) to deliver extrudafce to the opened mould while moving in a parallel path at the same speed as an adjacent die, and blowing means (24). The severing operation is preferably synchronized with the engagement of the pick-up means with the extrudate. The moulds preferably move in a circular path (as in the Figs.). There is preferably a plurality of pick-up means, each associated with and following the movement of a mould. The blowing means may be at the end of the mould remote from the extruder (as 24 in Fig. 1) or nearer thereto (as 27 in Figs. 4, 5, not shown). In the latter case, the blowing means (27) is movable transversely of the extrusion axis for aligning with the pick-up means (28) and retraction from the path of extrusion.
Patent GB-751030-A (GB)
Title: Improvements in machines for the separation of minerals
IPC: B03D1/26
Filed: 1954-02-11
Abstract: 751,030. Froth flotation machines. KNAPP & BATES, Ltd., and KNAPP, E. A. Feb. 11, 1954, No. 3997/54. Class 82(2). A froth flotation machine comprises a tank 10 with horizontally disposed non-rotatable diffusing pipes 14 to which air under pressure is fed. The air-lift action causes the pulp, introduced at 16, and the froth formed to rise as indicated by the arrows. A part-perforate plate 17 assists separation of the froth which is removed over weir 22 by a paddle wheel 23. The tailings are evacuated into a weir box and over a weir (not shown). The diffusing pipes 14 may be of ceramic particles sintered together. Specification 585,380 is referred to.
Patent GB-538965-A (GB)
Title: Improvements in or relating to tubular heat exchangers
IPC: F28D7/12
Filed: 1940-03-04
Abstract: 538,965. Tubular heat-exchangers. AKT.-GES. BROWN, BOVERI, & CIE. March 4, 1940, No. 4048. Convention date, March 15, 1939. [Classes 64 (iii)] and 123 (ii)] A tubular steam boiler or like heat exchanger comprises two groups of Field tubes projecting from headers 5, 5' at opposite ends of a flue 4 through which hot gases flow from a combustion chamber 1 to an outlet 9. The headers may have separate inlet and outlet pipes 6, 7 and they may be connected by concentric feed supply and steam pipes. In a further modification, one of the headers is dispensed with and the inner tubes of the groups are connected together in pairs by junction pieces.
Patent GB-1122316-A (GB)
Title: Improvements in fluid valve devices
IPC: F16K31/06
Filed: 1967-01-27
Abstract: 1,122,316. Valves. SOC. D'EXPLOITATION DES MATERIELS HISPANOSUIZA. 27 Jan., 1967 [14 Feb., 1966], No. 4077/67. Heading F2V. A pressure balanced valve comprises a valve member 14 seating on an elastomeric seat ring 11 between an inlet chamber 2 and an outlet hcamber 4. The valve member is extended in both directions and has a bore 21 communicating at one end with a fluid-tight bellows 12 in the inlet chamber and at the other end with the outlet chamber. The valve is biased lightly by a spring 9 and actuated by a solenoid 8. Only a small actuating force is required. In an alternative construction, Fig. 2 (not shown), the seat and valve member are positioned on the downstream side of the seat opening 6 and the valve is of normally open type.
Patent GB-1209529-A (GB)
Title: Derivatives of 4-nitrophenols
Inventor: DONNINGER CYRIL
IPC: C07C205/37
Filed: 1968-06-04
Abstract: 1,209,529. 4-Nitrophenol derivatives. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 31 March, 1969 [4 June, 1968; 24 Jan., 1969], Nos. 26573/68 and 4080/69. Heading C2C. [Also in Division A5] 4-Nitrophenol derivatives of the formula wherein R 1  represents an acyl group other than an alkanoyl group or an alkoxycarbonylalkyl group; R 2  represents an alkyl or cycloalkyl group; and X represents a halogen atom, are prepared by treating a substituted phenol of the formula with an organic halide of the formula R 1 .Hal, wherein R 1 , R 2  and X are as defined above. Nitrophenol derivatives in which R 1  represents an alkylcarbamoyl group are prepared by treating the corresponding phenol of Formula II with an alkyl isocyanate in the presence of a base. The following compounds are prepared in the examples: 6 - bromo - 4 - nitro - 2- isopropylphenyl methyl carbonate by treating 6-bromo- 4-nitro-2-isopropyl phenol with methyl chloroformate, (6-bromo-4-nitro-2-isopropyl phenol is obtained by nitrating and brominating 2-isopropyl phenol, or by selectively nitrating 4,6- dibromo-2-isopropylphenol); 6-chloro-4-nitro-2- isopropylphenyl methyl carbonate; 6-iodo-4- nitro-2-isopropylphenyl methyl carbonate; 6- bromo - 4 - nitro - 6- isopropylphenyl N - methyl carbamate; 6 - bromo - 4 - nitro - 6 - isopropylphenyl propargyl carbonate; 6-bromo-4-nitro- 2-methylphenoxy-acetic acid ethyl ester; 6- bromo - 4 - nitro - 2 - methylphenyl methyl carbonate; 6 - bromo - 4 - nitro - 2 - methylphenyl N-methyl carbamate; 6-bromo-4-nitro- 2-isopropylphenyl allyl carbonate; 6-bromo-4- nitro - 2 - s - butylphenyl methyl carbonate; 6 - bromo - 4 - nitro - 2 - cyclohexylphenyl methyl carbonate and 6-bromo-4-nitro-2-cyclohexylphenyl N-methyl carbamate.
Patent GB-640914-A (GB)
Title: A device for quickly fitting and removing wheels of racing and sports bicycles
IPC: B62K25/02
Filed: 1947-02-12
Abstract: 640,914. Detachable wheel mountings for cycles. BOERIS, A. Feb. 12, 1947, No. 4097. Convention date, Feb. 18, 1946. [Class 136. (ii)] A device for quickly fitting and removing the wheels of racing and sports bicycles comprises a rotatable. member 1 which remains permanently connected to. the bicycle frame when fitting or removing the wheel and is provided with a transverse slot which permits of the immediate withdrawal or fitting of the wheel hub, spindle 3 which is then locked through the action of a pull-rod 4 actuated by the rotatable member 1. The member is in the form, of a fly nut 1 screwed onto a threaded part 2 adjustably secured to the fork through a plate 8 and provided with a slot through which the spindle 3 may pass when the, slot registers with the fly nut slot. On screwing up the fly nut the wheel spindle 3 is locked between the two forks. A nut 9 which is locked by a set screw 10 is screwed! on the pull-rod 4 at the opposite end from the fly nut and a part 11 serves as an abutment for the spindle 3. The part 2 is mounted on a distance piece 7 slipped over the pull-rod 4 on which a thrust ball bearing 16 is fitted. As shown in Fig. 10, the fly nut 1 and part 2 may be provided with co-operating helical surfaces. In a modification shown in Fig. 15 the member 25 has its axis of oscillation at right-angles to the pull-rod and carries an eccentric 23 which works in a corresponding recess in an inner part 24. The parts 24, 25 are provided with a radial groove which is wider towards the end of the outer piece to allow of the passage of a thrust bearing 26. This modification is particularly suitable for cycle driving wheels provided with change speed gear of the type described in Specification 620,708, [Group XXIV].
Patent GB-1244173-A (GB)
Title: Improvements relating to physical testing machines
Inventor: HADLEY HERBERT ROY
IPC: G01N3/04
Filed: 1968-01-26
Abstract: 1,244,173. Remotely controlled fastenings. SAML. DENISON & SON Ltd. 20 Jan., 1969 [26 Jan., 1968], No. 4106/68. Heading E2A. [Also in Division G1] In a machine for compression testing concrete blocks 14 between an upper platen 13 and a lower platen 12, a releasable clamp is provided for locking the platen 13 in a tilted position so that the surface 13a is parallel to the contacted surface of the block. When the hydraulic pressure applied to the platen 12 has reached a predetermined value, hydraulic liquid is passed to a recess 23 in a cover plate 19 of a housing 15 via a passage 8. An annular projection 55 of a piston 53 therefore clamps a diaphragm 35, to which a spigot portion 42 of the platen 13 is attached, between friction rings 32, 36 and an annulus 18. Instead of being hydraulically actuated, the piston may be mechanically or electromechanically operated.
Patent GB-821052-A (GB)
Title: Improvements in or relating to electro-magnetic couplings, dynamometers and brakes
Inventor: ROSS ERIC GRAHAM
IPC: H02K49/04
Filed: 1956-02-09
Abstract: 821,052. Electromagnetic couplings, brakes and dynamometers. WELLMAN SMITH OWEN ENGINEERING CORPORATION Ltd. Feb. 4, 1957 [Feb. 9, 1956], No. 4134/56. Class 35. An electromagnetic coupling dynamometer or brake comprises a first magnetic member 1 acting as a field member of ring form, a second magnetic member 18 disposed within and spaced from the latter and having its outer peripheral surface complementary to the inner surface of the first member 1 in which outer surface extend slots 22 from one end of the surface to the other, the two members being relatively rotatable and connectable to driving and driven members, an exciting winding 16 to produce a toroidal magnetic flux through the magnetic members, and a magnetic annulus 7 to complete the magnetic circuit through the members and disposed with the radially outer part of one end face opposite the radially outer part of one end face of the first member 1 and with the radially inner part of the one end face opposite an end face, disposed in a radial plane, of the second member 18. Each of the two magnetic members in prior Specifications 671,314, 784,099 and 812,141, to which the invention is related are made in two parts, and by using one part of each such member as the magnetic members 1, 18, together with the annulus 7 a machine of smaller capacity than those of the prior Specifications is provided. In general construction the machine otherwise is similar to those of the prior Specifications.
Patent GB-1018804-A (GB)
Title: Decomposition of trialkylaluminum compounds
IPC: C07F5/06
Filed: 1964-01-31
Abstract: a -Olefins are separated from a mixture containing them and trialkyl aluminium compounds by treating the mixture with a substance which forms a heat-decomposable complex with the tri-alkyl aluminium compounds (see Division C2) and removing the lower layer containing the complex.  The complex is subsequently decomposed to yield trialkyl aluminium compounds and complexing agent which is recycled to the complexing stage. The mixture may be that obtained by treating a "chain-growth" product containing high molecular weight trialkyl aluminium compounds with low molecular weight, e.g. C2 to C5, a -olefins, and may contain mainly C8 to C16 a -olefins.  Reference has been directed by the Comptroller to Specifications 779,874 and 933,490.ALSO:A complex of a trialkyl aluminium and a complexing agent is decomposed by continuous molecular distillation at a temperature between 40 DEG  and 250 DEG  C., a pressure between 1 micron and 50 millimetres of mercury during a contact time of between 0.01 and 10 seconds.  The complexing agent may be an alkali metal fluoride, cyanide or azide, a 2-alkoxy naphthalene, an ether R-O-R1 wherein R is aromatic and R1 is alkyl or aryl, a thioether, a tertiary amine in which at least one radical is aromatic, and particularly a compound of formula RnMX, wherein R is an alkyl radical, M is nitrogen, arsenic, phosphorus, sulphur, selenium or tellurium, X is a halogen and n is 3 or 4. Preferably tetraalkyl ammonium halides having an average of 1-5 carbon atoms per alkyl radical are used.  The trialkyl aluminium compound preferably has an average of 2-5 carbon atoms per alkyl radical.  The complex may be that obtained by treating a displacement product containing low molecular weight tri-alkyl aluminium compounds and high molecular weight a -olefins with a 1: 1 molar complex of a low molecular weight tri-alkyl aluminium and tetraalkyl ammonium halide to form a 2 : 1 complex, the 2 : 1 complex being thereafter decomposed, at least partially, as above to yield low molecular tri-alkyl aluminium and 1 : 1 complex at least part of which is recycled to the complexing reaction.  In this particular application, it is preferred that the sum of the average number of carbon atoms per alkyl radical in the two constituents of the 1 : 1 complex be not greater than 6. Preferably, the 2 : 1 complex is washed with e.g. hexane to separate any hydrocarbon contaminant prior to molecular distillation.
Patent GB-803515-A (GB)
Title: Improvements in or relating to apparatus for collecting, storing and dispensing whole and fractional blood
Inventor: WALTER CARL WALDEMAR
IPC: A61M5/14
Filed: 1955-02-11
Abstract: 803,515. Making surgical instruments. FENWAL LABORATORIES, Inc. Feb. 11, 1955, No. 4177/55. Class 87(2). [Also in Group VI] A blood container 10 comprises a tube-form length of flexible synthetic plastic having the respective ends 11, 12 flattened and sealed, a tubular sealable inlet port 13 and a tubular outlet port 16 of like material extending through and sealed into a sealed end of the container, the outlet port 16 containing a sterile seal 16a and having an operably covered externally projecting portion 16b. A blood storage bag 10 is made of flexible synthetic plastic, e.g. polyvinyl chloride base material, a polyethylene. composition or a polymer of trichlorofluoroethylene. The tubing is formed either by extrusion or by marginally sealing superposed layers of sheet material. The ends of the tubing 11, 12 are transversely sealed by heating to melting point, inlet and outlet tubes 13, 16 being simultaneously sealed in position. Containers 20, 42 for blood anticoagulant or filtering means are made in a similar way. Needles of the hypodermic type which are connected to the bag 10 by flexible tubing (see Group VI) comprise a stainless steel or synthetic resin cannula 110 pointed at one end and around which a hub 120a of nylon is moulded. A mould 130 for this purpose comprises separable mating portions 131, 132 which together form a cavity in the shape of the hub 120a. Part of the cannula 110 is introduced into the cavity which is filled through a spine 134. The moulded hub 120a comprises a central portion 121a of polygonal cross-section which has at each end conical portions 122a, 123a, the conical portion 123a nearer the cannula point having a steeper taper than the other conical portion 122a. Indicia appropriate to the needle may be applied to the hub during the moulding operation.
Patent GB-851006-A (GB)
Title: Glycerol
Filed: 1959-02-06
Abstract: High purity glycerol is recovered from the reaction mixture resulting from the catalytic hydrogenolysis of saccharidic materials by subjecting a distilled fraction containing the glycerol and impurities distilled therewith to treatment with from 0,05 to 2,5% by weight of sulphuric acid at a temperature of 100 DEG -140 DEG  C. for a time not greater than 6 hours, neutralising the acid-treated material, fractionally distilling the neutralised product under vacuum and collecting the glycerol fraction.  The pressure during the acid treatment may be atmospheric or sub-atmospheric.  The neutralisation may be accomplished by treatment, for example, with an alkali metal hydroxide, an alkaline earth metal hydroxide or an ion exchange resin.  In the examples the reaction mixtures resulting from the catalytic hydrogenolysis of a purified high test molasses and of glucose were treated as above for the recovery of pure glycerol.
Patent GB-109217-A (GB)
Title: Improvements in Machine Frames.
Inventor: FORRESTER HAROLD JOSEPH CHARLE
IPC: F16M5/00
Filed: 1917-03-24
Abstract: 109,217. Forrester, H. J. C., (Miehle Printing Press & Manufacturing Co.). March 24, 1917. Cylinder machines.-A frame for a reciprocating-bed printing-press or other machine comprises a U-shaped portion 5, 6, 7 supported on feet 9, 10 and connected by a trunnion 15 to a secondary end portion 11 supported on feet 12, 13. The guides 18 for the reciprocating bed 19 or other working parts are supported on brackets 21, 22 attached to a relatively heavy portion 16 secured by bolts 17 or otherwise to the sides 5, 6 of the U- shaped portion. The feet 9. 10 and trunnion 15 form a three-point suspension.
Patent GB-548292-A (GB)
Title: Thermo circulating system for steam boilers
IPC: F22B13/14
Filed: 1941-04-02
Abstract: 548,292. Arrangements of water-tubes in locomotive fire-boxes. YATES, E. W. April 2, 1941, No. 4411. [Class 123 (ii)] A closed ended tube 1 opening into the ftont water wall of a locomotive fire-box is connected to the water space above the firebox by tubes 3 inclined alternately to the right and left of the tube 1. The inclined tubes discharge circulating water into a casing 6 open at front end and closed at its rear end. U.S.A. Specification 1,901,871 is referred to.
Patent GB-548294-A (GB)
Title: Improvements in or relating to record card controlled printing machines
Filed: 1941-04-02
Abstract: 548,294. Record-card controlled machines. BRITISH TABULATING MACHINE CO., Ltd. April 2, 1941, No. 4414. Convention date, April 15, 1940. [Class 106 (i)] In a record-card controlled printing-machine for printing addresses from a plurality of address cards and then details from a detail card or cards, a device for checking that the correct number of address cards precede the detail cards in correct sequence is characterized by a first comparing means to compare a designation in one column of a card with a designation in another column of the preceding card, a second comparing means to compare a designation in one column of a card with a designation in the same column of the preceding card, both comparing means being adapted to operate an indicating or feedstopping device if the designations compared are unequal, and means controlled by a special designation in a card for rendering one or other of the two comparing means operative and the other inoperative. As shown in Fig. 4, the cards have three special columns 61, 62, 63, each address card having an X hole in column 61, the hole in column 62 being the same as that in column 63 of the preceding address card, the first address card being perforated X, X, 1, and the last address card having an X hole in column 63. All detail cards have an X hole in column 62, the other columns being unperforated. As described in Specification 523,832, the cards are fed in succession from a magazine past an upper sensing brush UB, Fig. 1, in the first card cycle and past an intermediate brush IB during the second cycle. Presence or absence of a hole X in column 61 of a card (according to whether it is an address or detail card) in the first cycle establishes a lead from line 160 to line 30 or to line 40 respectively. In the first case, column 63 of this card is compared in the next card cycle with column 62 of the next card, and if the columns are found to be dissimilar, the circuit from line 160 through line 30 is completed through stop relay R23, warning lamp 29 and line 161, and the machine stops. In the second case, the presence of an X hole in column 62 of only one of either this card or the succeeding card completes the circuit from line 160 through line 40, stop relay 23, warning lamp 29 and line 161, and the machine stops. Operation of key 33 restarts the machine. When the first card is fed into the machine, the machine stops after the first card cycle and must be restarted.
Patent GB-731982-A (GB)
Title: Improvements relating to methods of and apparatus for extracting vegetable materials
IPC: C13B10/10
Filed: 1953-02-17
Abstract: 731,982. Extracting sugar. BREDT, G., LANGEN, E. G. VON.,. LOESSL, O. VON., [trading as PFEIFER & LANGEN KOLN], and BRAUNSCHWEIGISCHE MASCHINENBAUANSTALT. Feb. 17, 1953 [Feb. 28, 1952], No. 4446/53. Class 127. In continuously extracting comminuted vegetable materials, e.g. sugar beet sections, in a tower by means of an extraction liquid, the supply of fresh liquid and the withdrawal of raw juice are separately controlled, the supply of liquid being regulated to maintain the level of liquid in the tower constant and the withdrawal of raw juice being regulated in such a way that the juice has a given concentration. In the extraction tower 1 of the drawing is a hollow shaft 2, on the outside of which is a worm 3. Material to be extracted is supplied by a worm conveyer 5 into the upper part of the shaft 2 and conveyed downwardly therein by a worm 4. Near the bottom of the tower the material is deflected over a screen 6, conveyed upwards by the worm 3, and discharged near the top of the tower by a worm conveyer 8. Fresh water supplied by a pipe 18 enters the upper part of the tower at 9 ; raw juice is discharged at the lower end of the tower through outlets 10 and 11 and is pumped along a pipe 15 for further treatment. A small portion of the raw juice is pumped through a pipe 13 to the conveyer 5 for ensuring freedom from air of the material fed into the tower. The water is maintained at constant level in the tower by a float 19 coupled to a valve 20 in the water supply pipe 18. A device 17 responsive to the density of the juice in the withdrawal pipe 15 is coupled either with the conveyer worm in such way as to bring about reduction in the supply of material to the tower when the concentration of the juice exceeds the desired concentration and increase in the supply of material when the concentration of the juice falls below the desired concentration, or with a valve in the withdrawal pipe so as to cause opening of the valve when the juice has the desired concentration and closing of the valve when the concentration of the juice falls below this desired concentration.
Patent GB-1244092-A (GB)
Title: Improvements in and relating to the cyclo-dimerization of 1,3-diolefins
IPC: C07C2/46
Filed: 1969-01-27
Abstract: 1,244,092. Cyclodimerisation catalysts. FARBWERKE HOECHST A.G. 27 Jan., 1969 [27 Jan., 1968], No. 4459/69. Heading B1E. [Also in Division C5] Cyclodimerisation catalysts are prepared by reacting together, at 100-400C in the presence of a 1, 3-diolefin, the following components: a) a nickel-II compound; b) a phosphorus-III compound of formula PR 3 , P(OR) 3  or P(NR 2 ) 3 , in which R represents alkyl, cycloalkyl or aryl, or in the case of P(NR 2 ) 3 , the two R groups may form a ring with the N-atom; c) an alkali metal amide or an alkaline earth metal amide. The amide is preferably used in the form of a suspension in an inert diluent, particularly a mineral oil fraction boiling in the range 40-260C.