baber/WOPTO huggingface dataset:
Patent GB-222463-A (GB)
Title: A process for the preparation of phosphatides
IPC: C07F9/10
Filed: 1924-09-09
Abstract: Phosphatides are prepared by the interaction of phosphorus pentoxide with a neutral alcohol and an amino-alcohol or its salt in the molecular proportions of 1 : 1 : 2.  The product of interaction of phosphorus pentoxide with the neutral alcohol is a mono-alkyl ester of anhydro-pyrophosphoric acid, which then combines with the amino-alcohol to give a reaction product containing two substances, an alkyl-amino-alkyl-phosphoric acid ester or phosphatide and an amino-alkyl-phosphoric acid ester, which can be separated on the basis of their differing solubilities.  By using a diglyceride or mixture of diglyceride as the neutral alcohol and choline as the amino-alcohol, lecithins are produced, together with a choline phosphoric acid ester as by-product; if choline be replaced by ethanolamine, a cephaline results.  Adrenaline or an arsonium base may also constitute the amino-alcohol, while iodobehenolic and chloroarsinobehenolic acid residues may be present in the diglyceride component.  The reaction may be conducted in the presence of fats. According to the example, phosphorus pentoxide and choline bicarbonate are stirred with molten distearin until the mass solidifies; the product is extracted with benzene, filtered from the choline phosphate, and the lecithin crystallized out of the neutral solution.  Other choline salts, particularly anhydrides such as those of the sulphate and carbonate, may be employed.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the separate preparation of the anhydro-pyrophosphoric acid ester and its subsequent treatment with the amino-alcohol, and states that the order of the steps according to which the two alcohols are caused to react may be transposed.  This subject-matter does not appear in the Specification as accepted.
Patent GB-531643-A (GB)
Title: Improvements in or relating to chain grate stokers
IPC: F23H11/10
Filed: 1939-07-24
Abstract: 531,643. Travelling grates. BENNIS COMBUSTION, Ltd., and BENNIS, A. W. July 24, 1939, No. 21401. [Class 51 (i)] In a travelling grate in which forced draught is supplied to compartments arranged beneath the tipper run of the grate at different pressures, leakage of air from a compartment supplied with air at high pressure to one receiving air at a lower pressure along the clearance spaces at the sides of the grate between the side sealing plates and the sides of the grate is prevented by forming eddy currents in the air stream. The eddy currents are produced by forming recesses E in the sealing plates C into which air passing upwards from beneath the grate and through the spaces F between the ends of the side links D is directed. The links D may also be provided with recesses G for the same purpose.
Patent GB-248794-A (GB)
Title: Method of and means for equalising forces and inertia effects in oscillating systems
IPC: B06B3/00
Filed: 1924-09-10
Abstract: 248,794. Schieferstein, G. H. Sept. 10, 1924. Balancing reciprocating parts of machinery; utilizing inertia to obtain movements. - Relates to oscillatory mechanical systems in which a driving or driven member is connected to an elastically constrained mass adapted to oscillate with pronounced natural frequency and variable amplitude, in such a way as to transmit or receive energy without substantially interfering with the natural frequency of the system; and consists in arranging two or an even number of such systems to work in opposition or phase, displacement of 180‹, in conjunction with one or more " loose " couplings, in order to balance the forces and inertia effects. The motion may be utilized for screens of mills, threshing. machines, coal and ore separating plant &c. Specifications 188,633 and 237,934 are referred to and the " loose " couplings described therein may be employed in the present invention. In the arrangement shown in Fig. 1. masses a<1>, a<2>, elastically supported and constrained by sets of springs b<1>, b<2>, are connected by rods h<1>, h<2>, to a rocking lever ! i actuated through an elastic coupling k by a rotary crank g. the masses oscillating at first with gradually increasing. amplitude and being always in phase displacement of 180‹. The springs may be fixed at both ends between rigid or slightly elastic rounded-off clamps as shown, or they may be pivoted at one or both ends, in the latter case pendular suspension being adopted with or without the aid of other springs such as buffer springs between the ends of the masses and fixed parts of the machine, or the masses may be connected by pneumatic or other springs. The invention may be applied to internal combustion engines as shown in Fig. 12 in which the oppositely acting masses comprise pistons a<1>, a<2>, in a cylinder b, the movements being transmitted through a lever i and an elastic coupling k to a crank shaft g. The pistons work in end chambers b<1>, b2, with a common compression space b<3>. In a modification, the pistons work in a common chamber, the compression spaces being at opposite ends of the casing. As shown in Fig. 15, the masses a, a<1>, may be unequal, their amplitudes of oscillation being inversely proportional to their weights. In Fig. 18, the power is transmitted through inertia couplings k, k<1>,whilst in Fig. 19, the coupling members comprise springs k, k', in conjunction with eccentrically weighted rotary members k<2>, k<3>, driven from a pulley r through toothed gears z, z'.
Patent GB-1150320-A (GB)
Title: Acoustical Folding Door.
IPC: E06B3/94
Filed: 1966-05-13
Abstract: 1,150,320. Folding doors. PANELFOLD DOORS Inc. 13 May, 1966 [14 May, 1965], No. 21431/66. Heading E1J. An accordion-type folding door comprises hinged panel assemblies 24 and 26 each consisting of wooden panels 28 connected by elongate flexible hinge members 32 and having a partial or complete inner lining 34 of, eg., foam rubber. The panel assemblies are interconnected by upper plates 36 pivotally connected at their ends to the panels and each supported via a vertical shaft 50 (Fig. 4, not shown) on a roller 58 which runs in an overhead track 44, and lower bars 70 pivotally connected at each end to the assemblies. Flexible sealing sheets, e.g. 122 (Fig. 4) of e.g., plastics material, are connected to the upper and lower edges of the assemblies to form seals with the ceiling and floor respectively, the ceiling, eg., having a lower area corresponding to the dotted lines in the Fig., so that when the panels extend out of this area on opening the door, any vacuum built up inside the door is broken. Chains 84 con nect the upper plates 36 together, and the lead post 96 and the jamb 22 carry hollow vertical sealing strips.
Patent GB-510636-A (GB)
Title: Improvements in or relating to the manufacture of synthetic rubber
IPC: C08F236/04
Filed: 1938-07-19
Abstract: 510,636. Synthetic rubber. INSTITUTO PER LO STUDIO DELLA GOMMA, SINTETICA. July. 19, 1938, No. 21459. Convention date, July 19, 1937. [Class 2 (iii)] Synthetic rubber is produced by polymerizing a mixture of a diolefine with a hydrocarbon of the formula #<R1>>C## C= #R<3> -C = C-R<4> where R<1>, R<2>, R<3> and R<4> are hydrogen or hydrocarbon radicles. The added hydrocarbon may be monovinyl-acetylene or a homologue or non- hydrogenated derivative thereof such as monoethyl vinyl acetylene. The polymerization may be effected in aqueous emulsion with ammonium oleate, saponin, or butyl-naphthalene sulphonic acid, or in the absence or presence of a solvent such as a ketone or alcohol or a stable hydrocarbon, for instance benzene, gasoline or toluene. The quantity of the acetylene derivative may be 20-150 per cent. of the diolefine. In examples, (1) a solution of butadiene, monovinyl acetylene and oleic acid is dispersed in an aqueous solution of ammonia and hydrogen peroxide and the mixture is polymerized at 50-60C. with agitation ; (2) a solution of butadiene and monomethyl vinyl acetylene is introduced into an aqueous solution of casein, sodium butylnaphthalene, sulphonate and hydrogen peroxide, the mixture being polymerized as before. The Specification as open to inspection under Sect. 91 includes an example in which a solution of butadiene, monophenyl vinyl acetylene and saponin is dispersed in an aqueous solution of acetic acid,. trichloracetic acid and benzoyl peroxide, the mixture being polymerized at 40 C. with agitation. This subject-matter does not appear in the Specification as accepted.
Patent GB-1150275-A (GB)
Title: Improvements in or relating to Weft-Inserting Devices for Shuttleless Looms.
IPC: D03D47/23
Filed: 1966-05-13
Abstract: 1,150,275. Shuttleless looms. NUOVO PIGNONE S.p.A. 13 May, 1966 [20 May, 1965], No. 21473/66. Heading D1E. A weft inserter for carrying a weft thread from a bobbin at one side of a loom to the centre of the shed where it is transferred to a carrier inserted from the other side comprises Figs. 1 and 3, hollow body housing control and gripping members for the weft and having at its forward end a tongue 4 formed from the top wall and pointed side pieces 2, 3 curving upwardly and rearwardly to a level above the tongue 4. The weft is received below the tongue 4 and in slots 5. 6 in the side pieces and is clamped by gripping feet 7, 8 onto surfaces on the inner faces of the side pieces 2, 3. The feet 7, 8 are pivoted at 11 and acted upon by springs 12, 13 to grip the weft thread and by a lever 41 to release this grip when a tail portion 16 thereof is depressed at the start of the pick and the weft is presented by a selector to the inserter. At this stage also the weft is cut where it is attached to the fabric. The weft receiver, Figs. 8 and 9, which takes over the weft from the inserter at the centre of the shed comprises a pointed guard member 37 connected to a member 23 slotted at 29 to receive a pivoted blade 24. This blade has a hook portion 31 at its front end and side projections seating on the sides of the slot 29 under the pressure of a spring 33. The weft between the side pieces 2, 3 of the inserter is engaged by the hook 31, pulled under the spring-loaded seating projections thereof and disengaged from the inserter. The weft is then drawn through the other half of the shed where it is released on the rear end 32 of blade 24 being engaged by a cam.
Patent GB-1324902-A (GB)
Title: Wax-polymer compositions
IPC: C08L77/00
Filed: 1971-04-19
Abstract: 1324902 Coated paper ATLANTIC RICHFIELD CO 19 April 1971 [2 March 1970] 21507/71 Heading B2E [Also in Divisions C3 and C5] Paper is coated with a composition comprising in parts by weight: (A) 100 parts of a wax having a m.p. of at least 120‹F, (B) 5 to 150 parts of an ethylene-vinyl acetate copolymer having a polymerised vinyl acetate content of 5 to 35 wt% and a melt index of 0.1 to 1000; (C) a wax-compatible non-corrosive carboxylic acid having an acid number in excess of 20 and in an amount sufficient to impart to the composition an acid number of 5 to 200; and (D) 2 to 20 parts of a polyamide of formula: HO- (-CO-R-CO-NH-R 1 -NH-) n  -H wherein R is the C 13-48  residue of a dimerised fatty acid, R 1  is C 1-10  alkylene and n is 65 to 300. The wax component may be a paraffin wax or microcrystalline wax. The acid component may be an aliphatic, alicyclic or aromatic acid (e.g. abietic acid or dimerised and trimerised 9, 12-octadecadienoic acid) or may be comprised by wood rosin which may be chemically modified. The polyamide component may be prepared by reacting a dimerised oleic or linoleic acid with ethylenediamine. The compositions may also contain hydrocarbon oils, polystyrene, poly (α-methylstyrene), poly (1-butene), polyisobutylene, polypropanes, and conventional additives. The coating is effected by passing the paper between two #" diameter stainless steel rods around each of which are wound steel wire and which are immersed in the coating composition at 223-227‹F. A coating of thickness 1.4-1.6 mil is formed on each side and is dried in air at 73‹F.
Patent GB-1242294-A (GB)
Title: Improvements in or relating to non-return valves
Inventor: ROWE ALAN CHARLES
IPC: F16K15/03
Filed: 1969-04-28
Abstract: 1,242,294. Valves. NORMALAIRGARRETT Ltd. 13 April, 1970 [28 April, 1969], No. 21538/69. Heading F2V. A non-return valve formed by spring-biased flaps 13 engaging a seat 11 is combined with a similar double-flap valve, the flaps 14 of which are normally held in the position shown by a yoke 15 mounted on a shaft 18. The latter is locked in position by a ball 21 engaging a detent in an extension 20 of a hand reset lever 19. The ball 21 is released by movement of a lever 23 on energization of a solenoid 26 so that a helical spring 27 can rotate the shaft 18 and permit the flaps 14 to engage seat 12 and thus prevent flow in both directions in passage 10. The solenoid may be replaced by a pneumatic actuator and the lever 23 may be dispensed with in which case the detent is engaged by a sphericallyended rod forming part of the actuator. External needles 28 on the valve shafts indicate the positions of the flaps.
Patent GB-762480-A (GB)
Title: Improvements in or relating to light projectors
IPC: F21S8/10
Filed: 1953-08-04
Abstract: 762,480. Projector lamps. CIBIE, P. Aug. 4, 1953 [Aug. 6, 1952], No. 21544/53. Class 75(2) and 75(4) An optical projector of the type in which the projection P on a screen E has a sharp cut-off along at least one line F comprises a light source within a reflector and a member, for instance the front glass S, having at least two areas one of which allows luminous flux to pass and the other of which has a modifying influence on the light rays, the contour of the second area being determined by the intersection with the member'of a surface formed by the envelope of surfaces formed by light rays issuing from predetermined points of the source and forming images on the screen E on one side of the cut-off line F. If the source is an axially arranged rectilinear filament the rays emitted by its end point a<SP>1</SP>, Fig. 5, and striking the screen on the horizontal cut-off line F form a surface which intersects the front glass S in a curve c<SP>1</SP>. Similarly two spaced central points a<SP>2</SP>, a<SP>3</SP> and the other end point a<SP>4</SP> of the filament form curves c<SP>2</SP>, c<SP>3</SP>, c<SP>4</SP> on the front glass and the envelope C of the curves c<SP>1</SP>, c<SP>2</SP>, c<SP>3</SP>, c<SP>4</SP> defines an area which may be rendered opaque or may be provided with prisms to deflect the light therethrough on to the screen below the cut-off line F. The shape of the modifying area depends on the shape of the filament and also on the position of the filament in the reflector, being oval when the beam is divergent and a figure eight with equal or unequal loops when the beam is convergent. A front glass having two oval modifying areas positioned symmetrically about the horizontal diametral line of the front glass gives a beam having two horizontal parallel cut-offs; the oval areas may touch or overlap or be spaced. The area of the front glass outside the modifying area or areas may be ribbed vertically or obliquely. The modifying area may be formed on a member surrounding the light source. The reflector may be a paraboloid or a portion of a paraboloid bounded by two planes parallel with its axis or spherical or a surface of the fourth degree.
Patent GB-998969-A (GB)
Title: Improved towel arrangement
IPC: A47K10/02
Filed: 1964-05-26
Abstract: 998,969. Towel holders. M. HERTZ. May 26, 1964 [May 3, 1964], No. 21671/64. Headings A4U and A4V. In a towel arrangement a stack 1 of clean towels 2 is placed in a box 3 having a cut out 3a each towel 2 having two eyelets 2a along one edge and the eyelets of the stack being vertically aligned, an endless washable cord 4 such as a heat resistant plastic covered wire being threaded through the eyelets from the bottom of the stack and hanging in a loop into a lower container 5 where the connection between the free ends of the rope is covered by cloth matrial 6. The top towel is lifted for use and then dropped along the rope into the lower container.
Patent GB-599800-A (GB)
Title: Improvements in or relating to change-speed gears
IPC: F16H3/095
Filed: 1944-11-07
Abstract: 599,800. Change-speed gearing. RUBBRA, A. A., and GARDINER, T. E. G. Nov. 7, 1944, No. 21839. [Class 80(ii)] In a change-speed gear having a plurality of layshafts each of which has associated therewith a centrifugally-actuated clutch operable to connect the driving and driven shafts through gear trains, the step-up from one speed ratio to the next higher is accompanied by the employment of at least one more clutch connection and at the highest speed ratio torque is transmitted by the driving elements of all the clutches. As shown, applied to a change-speed gear for supercharger drives giving three forward speeds, the driving and driven shafts are co-axial and have three layshafts 3, 4 and 5 symmetrically disposed about them. Each layshaft is permanently driven at the same speed from a driving gear 6 and carries a pair of loose gears 13, 11; 20, 17 and 21, 18 respectively, either of each pair being alternatively clutchable to its layshaft by two-way centrifugal clutches 15, 23, 24 respectively whose mutual operation is so arranged that power is transmitted in low gear .through the layshaft 3 only via the gear 11 meshing a large driven gear 12, in medium gear through two layshafts 4, 5 via the gears 17, 18 meshing an intermediate driven gear 19 and in high gear through all three layshafts via the gears 13, 20, 21 meshing a small driven gear 14. The centrifugal clutches, which may be of the type described in Specification 551,002 having bobs which are selectively biassed from a neutral position into one or other of two operative positions, are controlled by a three - position hydraulic ram 25 acting through cam and follower linkworks 28, 30 and 29, 31, the latter selectively controlling clutch 15 only and the former clutches 23, 24 simultaneously. The followers 29, 31 are provided with double arms to ensure effective locking of the clutches in their neutral positions. Specifications 572,93G and 573,713, [both in Group XXIX], also are referred to.
Patent GB-1187654-A (GB)
Title: Inflatable Structures
Inventor: SEPP OSCAR W
IPC: E04H15/20
Filed: 1967-05-11
Abstract: 1,187,654. Laminated inflatable member. M. STEINTHAL & CO. Inc. 11 May, 1967, No. 21844/67. Heading B5N. [Also in Division E1] An elongated inflatable member 10 comprises two sheets 2, 3 of stretchable fluid impervious material sealed together at their peripheries, the sheets being unstretched, or maintained in the same stretched condition, during sealing and having different elastic characteristics so that they induce an arcuate shape in the member when inflated and means to permit inflation of the member. The sheets 2, 3 may be of materials having different expansion characteristics or both sheets may be of thermoplastic material with one sheet thicker than the other. The sheets may be sealed along a rectangular outline by an electronic heat sealer, and one of them may include a one-way valve 6. The members may be used for the ribs of an inflatable building. Alternatively a structure comprising a plurality of members may be produced by sealing two sheets about their peripheries and along a plurality of spaced parallel lines. The members may include straps whereby they may be attached to anchoring means.
Patent GB-1099158-A (GB)
Title: Improvements in repeat alarm mechanisms
IPC: G04C21/36
Filed: 1966-05-17
Abstract: 1,099,158. Time switches. GENERAL ELECTRIC CO. May 17, 1966 [June 15, 1965], No. 21897/66. Heading H2B. [Also in Division G3] In a timer (see Division G3) an alarm actuating mechanism comprises a member 36 which operates switch contacts 32, 34 to switch on the alarm which, for example, may comprise a radio. A resilient arm 30, carrying at its free end opposed switch contacts 32, is biased to prevent engagement of the contacts 32, 34. When a selector knob 88 is in its third or automatic position and cams 24<SP>1</SP> on an hours hand gear 24 and 26<SP>1</SP> on an alarm gear 26 have not engaged, the member 36, biased by a spring 52, is located in the position shown in Fig. 4 with a shoulder 42 preventing the switch contact 32 touching the U-shaped contact 34. When the cams 24<SP>1</SP>, 26<SP>1</SP> engage, the gear 24 is moved backwards to deflect a finger 50 of the member 36, thereby allowing the member to move sideways and the contacts 32, 34 to engage. The radio may be manually switched off by turning the knob 88 to its centre position, an arm 90 thereof abutting a shoulder 44 of the member 36 so that the shoulder 42 prevents engagement of the switch contacts. In the first position of the knob 88 the shoulder 42 pushes the contact 32 against the left-hand side of the U-shaped contact 34 to manually switch on the radio. A detent on an arm 92 of the knob 88 engages depressions 94 in each of the three switch positions.
Patent GB-225294-A (GB)
Title: An improved shield for preventing mud splashing by vehicle wheels
IPC: B62D25/18
Filed: 1923-08-30
Abstract: 225,294. Piggott, G. Aug. 30, 1923. Lateral-splash guards. - A splash guard 40, supported by an arm 7 from a fixed part such as the peripheral guard 2, is secured to a rod 32 which is slidable against a spring 33 in a bracket 31 fixed to an arm 8. This arm can swing about a part 20, but normally is yieldingly retained in the vertical or most effective position by a spring plunger 29 having a rounded end engaging in a recess, or one of a number of recesses, in the arm 8. As shown, the arm 7 is detachably secured to the peripheral guard by a spring plunger 18.
Patent GB-186776-A (GB)
Title: Improvements in and relating to means for cleaning the surfaces of drying cylinders used in paper making machines and such like
IPC: D21G3/02
Filed: 1921-08-18
Abstract: 186,776. Johnson & Sons, Ltd., C. H., and Paterson, J. Aug. 18, 1921. Drying.-Cleaners for the drying-cylinders of paper machines and the like comprise built up layers of gauze wire or finely perforated thin plates. They may comprise a longitudinal wire gauze brush used end-on, or they may be formed of superposed layers a used substantially tangentially and formed with a pocket a<1> and two horns a<2> threaded to receive screws b by which the cleaner is clamped to the ordinary doctor blade c.
Patent GB-970564-A (GB)
Title: Process for dyeing with vat dyestuffs
IPC: D06P1/52
Filed: 1962-06-06
Abstract: Polyamides are produced by condensing the amine <FORM:0970564/C1/1> with one of the dicarboxylic acids: glutanic, suberic, azelaic, sebacic or especially adipic acid. Examples are given in which the degree of polymerization is 2 or 3.ALSO:Vat dyeings are levelled by treatment during or after dyeing with polyamides consisting of (a) structural elements of polyamines that contain an alicyclic or heterocyclic residue, at least one alkylene residue, at least one 3 degree or 4 degree nitrogen atom and at least two nitrogen atoms bound to hydrogen, and (b) structural elements of dicarboxylic acids of the formula: HODC - (CH2)k - COOH wherein k is 3 to 8.  The polyamides may be prepared from N-amino-ethyl-piperazine and any of the acids: glutaric, suberic, azelaic, sebacic or adipic acid. The degree of polymerization may be 2 or 3.  Examples are given of dyeing cotton.
Patent GB-465509-A (GB)
Title: Process for the passivation of ferrous metals
IPC: C23C8/14
Filed: 1935-08-02
Abstract: Iron, steel and iron alloys, containing for example nickel or chromium, are rendered passive by heating in oxygen at a low partial pressure to form a thin, compact, adherent oxide layer.  A low partial pressure may be obtained by the use of oxygen alone at a low pressure, by dilution of air or oxygen with nitrogen, or by using gaseous oxygen compounds dissociating at the temperature used to give a suitable partial pressure; such compounds may be used alone, in admixture with each other or diluted with other gases.