baber/WOPTO huggingface dataset:
Patent GB-558073-A (GB)
Title: Improvements in and relating to building constructional units
IPC: E04B1/20
Filed: 1942-03-12
Abstract: 558,073. Building construction. GREATREX, A. I. March 12, 1942, No. 3270. [Class 20 (iv)] A beam or stanchion 6 has a dovetail portion 7 projecting from one side to accommodate the bevelled edges of wall or floor slabs 11. Reinforcement 8, 9, 10 is provided. A gap is preferably left to receive grouting 13 which may merge into a surface rendering 14. The members 6 may be braced together by rods 15, and provision may be made for external and internal slabs 11, 17. A construction of the junction between vertical and horizontal members 6 is described. Floors or walls constructed in this manner may be used as shuttering for heavier floors or walls. Reference has been directed by the Comptroller to Specifications 161,631 and 315,202, [both in Class 20 (iv)], and 540,503,
Patent GB-719095-A (GB)
Title: Improvements relating to power transmission means for the driving of subsidiary parts in internal combustion engines
IPC: F16F15/12
Filed: 1952-02-08
Abstract: 719,095.  Flexible couplings. DAIMLERBENZ AKT.-GES. Feb. 8, 1952 [Feb. 8, 1951], No. 3368/52. Class 80 (2) [Also in Groups XXVII and XXXII] A member 4 transmitting the drive from an internal-combustion engine to a subsidiary part is connected to the engine crankshaft by a resilient coupling, the member 4 being within and the resilient coupling being outside the engine crankcase. As shown, a portion 2 of the crankshaft 3 extends through the crankcase wall 1 and the member 4 is freely mounted on the portion 2. The member 4 is integral with, or is connected by dogs 5, to a revoluble part 6 formed with a flywheel 7 and freely mounted on the portion 2. A hub member 8 grooved to receive a driving belt is fixed to the portion 2 and is coupled to the flywheel 7 by pins 9 engaging in rubber bushes 10 in holes in the flywheel 7. The bushes 10 may be vulcanized to the pins and/or to the disc 7. Seals 11, 12, prevent oil from the crankcase from reaching the flexible coupling. The flywheel 7 may serve as an oscillation damper and it may be divided into masses which may be mounted resiliently on pivots. The bushes 10 may be replaced by a continuous rubber ring having projections on its inner and outer surfaces to engage the adjacent parts of the members 6, 7. The bushes 10 may be replaced by metallic springs.
Patent GB-712857-A (GB)
Title: Improvements relating to method of and apparatus for providing successive small quantities of gas
Inventor: BLEARS JACK
IPC: G01N1/00
Filed: 1952-02-08
Abstract: <PICT:0712857/III/1> <PICT:0712857/III/2> A method of dispensing a small quantity of gas at predetermined volume and pressure, comprises filling a metering chamber 1 with gas, balancing the gas pressure against a displaceable column of liquid 3, causing excess gas to spill into an evacuated chamber or duct 5, and delivering the gas so obtained to apparatus such as analysing apparatus.  To charge the chamber 1, a duct 4 is closed and a supply pipe 14 brought into temporary communication with the end of a duct 12 in a tank of sealing liquid 13.  The incoming gas depresses the level of the liquid 3 in the chamber 1 and raises it in a closed tube 2 until the lower end of the duct 5 is uncovered. At this stage, the supply of gas is arrested and excess gas pumped away through a duct 6 until the liquid level in the chamber reaches the lower end of the duct 5.  The gas sample is then delivered by opening the duct 4.  The pressure of the sample may be varied by adjustment of a screw 11 which governs the initial p  height of the sealing liquid.  The ducts 4 and 6 are of stainless steel and hard-soldered to stainless steel blocks 7 and 8 which, through spherical ball joints, make close contact with the chamber 1 and duct 5.  The latter two members and the tube 2 are of glass while the sealing liquid may be mercury.  Filters, permeable to the gas but not to the liquid, are fitted to ducts 5 and 12.  Fig. 2 shows a system in which the delivery pipe 17 of a mass spectrometer is connected through leak valves 18 and 181 and valve assemblies 22, 221, for example, of the kind described in Specifications 712,855 and 712,856, [both in Group XXIX], to two sets 27, 271 of gas dispensing apparatus having their ducts 4, 41 connected to a vacuum line 21.  In operation, valves 23, 24 and 25 are closed while the apparatus 27 is operated; the valve 23 is then opened to permit the gas sample to pass from ducts 4 by way of a duct 19 to a reservoir from which it is transferred to the pipe 17 by closing the valve 23 and opening the leak valve 18.  A sample can be supplied by the apparatus 271 in a similar manner.  Unidentified samples are supplied by admitting them to a passage 28 which has first been evacuated. The Provisional Specification states that, in analysing isotopes, the gas may pass direct from a pipe 26 and valves 23 and 25 to the reservoir and describes the blocks 7 and 8 as rubber washers.
Patent GB-1015180-A (GB)
Title: Process for the preparation of acrolein or methacrolein
Inventor: PHIELIX BERNARD
IPC: B01J23/31
Filed: 1964-01-27
Abstract: In a process for the preparation of acrolein or methacrolein by reacting in gaseous phase and at elevated temperature propylene, or isobutylene with oxygen there is used a catalyst comprising Bi, Cr and V or Bi, Cr, V and P in the form of an oxide or oxides wherein more than 1 gm. atom of Bi and Cr is present per 3 gm. atoms of V and more than 1 gm. atom of Bi and Cr is present in addition per gm. atom of P present (if any).  The preparation may be effected in a fixed or fluidized bed.  Typical reaction conditions are:-Temp. 300 DEG  to 800 DEG  C., G.H.S.V. 100 to 10,000 v./v./hr., alkene/air 0.05 to 1/1.  Examples are given.ALSO:An oxidation catalyst comprises Bi, Cr and V oxides or of Bi, Cr, V and P oxides in which more than 1 gm. atom of Bi and Cr is present per 3 gm. atoms of V and more than 1gm. atom of Bi and Cr is present in addition per gm. atom of P (if any). The catalyst may be supported on silica gel, carborundum, clay, pumice, aluminium phosphate, Al2O3 or BPO4, and used as a fixed or fluidized bed.
Patent GB-270790-A (GB)
Title: Reflecting devices
IPC: G02B5/124
Filed: 1926-02-08
Abstract: 270,790. Stimson, J. C. Feb. 8, 1926. Reflectors. - In reflectors comprising a number of contiguous, central triple reflector units, the angle between one or more pairs of the reflecting surfaces of each unit deviates from a right angle, and the surfaces are deformed throughout their area, so as to produce merging and slightlyspreading reflected beams of uniform intensity. The units may be moulded, the angles of the mould being only approximately accurate, and its surfaces being as plane as conveniently possible, and polished, but nevertheless possessing minute irregularities. The spread of the beam may be regulated by controlling the degree of polish and the shrinkage of the glass during the pressing operation. The units may be pressed from a single glass plate and have incident faces of equilateral triangular shape arranged contiguously. Alternatively, as shown, they may be pressed so as to have square reflecting surfaces, the corresponding surfaces of all the units being in the same or parallel planes.
Patent GB-542430-A (GB)
Title: Improvements in drilling machines
IPC: B23Q5/56
Filed: 1941-03-15
Abstract: 542,430. Rack And pinion gearing. POLLARD & CO., Ltd., F., and CARTER, W. G. March 15, 1941, No. 3575. [Class 80 (i)] [Also in Group XXII] The rack on the feed quill 12 of a drilling- machine is engaged by a second pinion 19 journalled in feed pinion by a stub 20 and in a sleeve 22. An extension 24 of the sleeve houses a clock-type spring 25 anchored to the sleeve and pinion so that the pinion opposses the feed, takes up back lash between feed pinion and rack, and balances or returns the spindle. The sleeve 22 may be adjustable in the frame to permit the loading of the spring to be adjusted.
Patent GB-562085-A (GB)
Title: Improvements in or relating to lubricating oil supply systems for internal combustion engines and the like
IPC: B64D37/22
Filed: 1943-03-04
Abstract: 562,085. Oil sumps; tanks. BLACKBURN AIRCRAFT, Ltd., and WATTS, W. A. March 4, 1943, No. 3601. [Class 7 (ii)] [Also in Group XXIX] A fuel &c. tank or oil sump is divided by an horizontal partition 4 from which depend tubes 5, 17 reaching almost to the bottom of the lower part of the tank &c. and the fuel &c. is drawn from the tank through a tube 10 extending upwardly from the floor of the tank and provided at its upper end with an open mouth and at its lower end with ports 12 each fitted with a hinged valve 13 actuated by a weight 16 which closes the port as the fuel &c. surges past it when the aircraft &c. to which the tank is fitted makes a sudden turn or dive or flies in an inverted position.
Patent GB-819958-A (GB)
Title: Improvements in coated electrodes for electric arc welding
IPC: B23K35/365
Filed: 1958-02-05
Abstract: An arc-welding electrode consists of a mild steel core coated with a composition containing alkaline earth carbonate, fluorspar, cryolite in an amount not exceeding that of fluorspar, and aluminium, magnesium, titanium, zirconium or an alloy thereof such as alminium-titanium, aluminium-magnesium or ferro-titanium. A suitable composition contains, in addition to iron powder in a proportion of 20-40 per cent of the weight of the coating, .limestone.30-50.per cent .fluorspar.10-20.per cent .cryolite.5- 10.per cent .alminium-50.. .per cent titanium.2- 4.per cent .ferrosilicon and/or.. .ferromanganese.5- 15.per cent .potassium silicate.8- 20.per cent .other slag-forming.. .constituents such as.. .titanium dioxide and.. .manganese oxides,.. .in total.0- 25.per cent p
Patent GB-178597-A (GB)
Title: Improvements relating to the manufacture of commutators of dynamo electric machineryand the like
IPC: H01R43/14
Filed: 1921-02-01
Abstract: 178,597. Neal, L. Feb. 1, 1921. Reciprocating-saw machines.- The insulation between the segments of a commutator is sawn out by means of a reciprocating saw 5 driven by an eccentric 7 and pulley 8. The armature is supported with its axis horizontal, and a vertical adjustment is provided for the saw by means of a screw 15, so that at the end of the cut the saw is horizontal. The saw is fed by a hand-lever 10 or otherwise.
Patent GB-374810-A (GB)
Title: Improvements in or relating to microscopes
IPC: G02B21/08
Filed: 1932-02-09
Abstract: 374,810. Microscopes. LEITZ GES., E., Optical Works, Wetzlar, Germany. Feb. 9, 1932, No. 3836. Convention date, June 20, 1931. [Class 97 (i).] In a microscope for the examination of objects in liquid. and having a watertight dipping cap surrounding the objective, an artificial background or support is provided for the object to be examined, this background being secured to the body of the microscope and acting to support the object for illumination from above. In Fig. 1 the objective A is surrounded by a condenser consisting of annular lenses B, B<1> which receive light from a reflector C and focus it on the object. The objective and condenser are enclosed in a vertically-adjustable dipping cap D having a window D<1>. The artificial background or support F is carried by an arm E attached to a rod G which can slide in a sleeve H attached to a ring H<1>, Fig. 2, mounted in a bracket J on the microscope. The ring H<1> can be adjusted by screws K to centre the support F. The rod G has a flat G<1> and a recess G<2> with which a spring L can engage so that in the working position shown a handle G3 bears on the edge H<2> of the sleeve H and the rod can be adjusted vertically for focusing by a screw M. The support F can be swung aside by turning the handle G<3> until it abuts against the edge H<3> of the sleeve H. In this position also the background can be removed by drawing the rod G downwards. The support F may be screwed into the arm E to enable different forms of background to be used. In Fig. 4 the block F<2> forming the background is carried by a screwed ring E<1> and projects into a ring E<2> supported from the arm E by a spring E3.
Patent GB-1080451-A (GB)
Title: Improvements in fluid filters
Inventor: STRIPP PETER WILLIAM
IPC: B01D27/08
Filed: 1963-01-23
Abstract: 1,080,451. Filters for liquids. TECALEMIT (ENGINEERING) Ltd. Jan. 17, 1964 [Jan. 23, 1963], No. 2853/63. Heading B1D. A throw-away oil filter has a hollow hub 51 by which it is screwed into a part 55 of an I.C. engine body, a sealing ring 47 secured to the filter thereby being compressed against a raised seating 65 on the part 55. Unfiltered oil enters the filter through holes 49 in an end plate 48 and then flows radially and laterally between the plate and a resilient frusto-conical annular disc 57 whose outer edge normally contacts the plate beyond the ring of holes to form a non-return valve. The oil next flows inwards through a cylindrical pleated paper element (61) and then flows along the bore of the hollow hub 51 to a port 54 in the engine part 55. The inner edge of the non-return valve 57 is secured between one end cap 63 of the filter element 61 and an outwardly-directed flange 56 on the hub 51. A spring-loaded excess-pressure by-pass valve 64 may be provided.
Patent GB-746372-A (GB)
Title: Improvements in and relating to buffing wheels
IPC: B24D13/08
Filed: 1952-02-13
Abstract: 746,372. Polishing buffs. HALL, E. W. Feb. 13, 1952 [Feb. 17, 1951], No. 3884/52. Class 60 A polishing buff adaped to be driven by the periphery of the spindle 14, Fig. 2, on which it is mounted comprises a central hub having a bore 12 and composed of a series of thin plates 22 of relatively dense and rigid material with interposed discs 16 of relatively soft and porous material, the plates and discs being adhesively secured together, and a mass of polishing material 18 encircling the hub and anchored thereto. The buff is built up to the desired axial thickness by a number of sections 10 each consisting of a number of plies of textile fabric which may be charged with polishing medium. The outer periphery of the plies is ruffled or undulated while the inner periphery is secured by stitching 20, Fig. 3, and clamped between the plates 22. The latter may be hard fibre, and the discs 16 of laminated chipboard or the cellular cardboard described in U.S.A. Specification 2,165,752. The density of the buff surface is controlled by the use of spacers 26 which are constructionally similar to the plates 22. The several sections 10 are united by subjecting them to axial pressure after the plates 22 and spacers 26 have been covered with an adhesive. such as rubber latex which flows into wholly or partly aligned holes in the plates and spacers and hence produces ties of solid adhesive (see Fig. 5) between the sections. The spacers may be omitted. The axial pressure applied to the plates 22 during assembly causes the fabric to protrude into the outer holes of these plates so that it is keyed against radial movement. A V-thread on the spindle effects a driving engagement with the bore 12 which may have a conical shape. The buff is rotated so that it tends to cause the spindle to screw into the bore.
Patent GB-364554-A (GB)
Title: Process for the production of white opaque glazes and enamels
IPC: F02K7/00
Filed: 1930-06-25
Abstract: 364,554. Enamels; glazes. KREIDL,. 1., 5, Sebastian Kohlgasse, Vienna. June 25,. 1930, No. 3892/31. Convention date, Aug.. 8, 1929. [Class 56.] In the production of white opaque enamels and glazes by incorporating in the enamat slip a substance which develops gas bubbles on firing, the number, size, and distribution of the gas bubbles evolved, and thus the resulting opacity, are controlled by varying the amount of adsorbent relative to the gas-evolving substance, or by replacing one adsorbent by another, or by both means: the concentration of gas-evolving agent for producing a. given opacity can thus be reduced to a minimum. Clay, kaolin, glass frit, &c., are suitable adsorbents ; dyestuffs such as Methylene Blue, naphthols, or other organic or inorganic substances may be used as gas-evolving agents; they may be adsorbed on the clay &c., prior to addition to the enamel slip ; water-insoluble agents may be dissolved in a suitable solvent for use. Specifications 297,724, 297,725, and 297,737, [all in Class 56, Glass], are referred to. The Specification as open to inspection under Sect. 91 (3) (a) relates generally to variation in the nature and amount of the gas-evolving substance. and adsorbent, and includes examples of the use of (1) clay, Methylene Blue, and common salt; (2) clay and potassium nitrate ; (3) clay and formic acid. This subject-matter does not appear in the Specification as accepted.
Patent GB-1057301-A (GB)
Title: Capacitors
IPC: H01G13/00
Filed: 1964-02-12
Abstract: 1,057,301. Capacitors. ILLINOIS TOOL WORKS Inc. Feb. 12, 1964 [Feb. 14, 1963], No. 5900/64. Heading HIM. A roll capacitor comprises staggered metal, e.g. aluminium foil electrodes 22, 24, interwound with overlapping thermoplastic, e.g. polyethylene terephthalate dielectric foils 20 the winding terminating with plural over-wrapping turns enclosing a thermoplastic label insert 34 visible through the overlying foil. Terminal wires 26, 28 of, e.g., tinned copper or steel are attached by heating them by passing a heavy short duration current (Fig. 10, not shown) from a transformer and control unit and then forcing them into the capacitor ends by serrated rib forming jaws of e.g. stainless steel, whereby the plastic foil overlaps are melted, the wires brought into contact with the capacitor foils, and subsequently sealed and retained by plural transverse ribs 58 (Fig. 2) formed on cooling the molten plastic. Similarly leads may be attached to rolled electrolytic capacitors employing aluminium foils separated by fibrous e.g. paper separators retaining the electrolyte and enclosed in rolled thermoplastic foil; the capacitor being thereby sealed. Specification 1,056,521 is referred to.
Patent GB-1424231-A (GB)
Title: Mounting devices for electrical circuit boards
IPC: G01R31/02
Filed: 1973-01-25
Abstract: 1424231 Current monitoring INTERATOM INTERNATIONALE ATOMREAKTORBAU GmbH 25 Jan 1973 [26 Jan 1972] 3946/73 Heading G1U [Also in Divisions H1 and H2] The absence of current through the primary winding of a transformer Tr, Fig. 6, is detected by a differential amplifier V which responds to the absence of a positive potential on its input "-" to produce an output signal which causes a LED D12 to glow and a relay RL to be energized. However, the indication of current failure may be inhibited, and is so in the circuit shown, by an optional voltage responsive circuit including a transistor T4 fed from the right-hand end of the primary winding of the transformer, and this circuit, by ensuring that the anode of a diode D1 is always grounded when voltage is present at the right-hand end of the transformer primary, only allows a current failure to be indicated, providing that there is not simultaneously a voltage failure.
Patent GB-869764-A (GB)
Title: Process for rectifying a formaldehyde-containing solution
Filed: 1959-02-04
Abstract: Mixtures of formaldehyde, water and methanol substantially free from formic acid (removal of formic acid being effected by an anion-exchange resin) are rectified (see Group III) to obtain pure methanol overhead and a clear concentrated formaldehyde solution substantially free from formic acid and methanol as bottoms.  The latter solution has a concentration of 65 to 85% formaldehyde and may be cooled to yield a linear formaldehyde polymer which is solid at room temperature and soluble in water.ALSO:Mixtures of formaldehyde, water and methanol substantially free from formic acid, containing 50% to 80% by weight of formaldehyde and a weight ratio of formaldehyde to water between 65:35 and 85:15, are rectified under top-of-tower pressures and temperatures of 160-660 mm. Hg. and 30 DEG -61 DEG C. with a methanol reflux ratio of 5:1 to 15:1, thereby distilling off substantially pure methanol overhead, and withdrawing as bottoms a clear concentrated formaldehyde solution substantially free from formic acid and methanol.  Mixtures to be rectified may be those obtained from gases resulting from the catalytic oxidation at 450 DEG -700 DEG C. of gaseous mixtures of methanol and an oxygen-containing gas such as air, air and nitrogen, or air and steam, these gases being fractionally condensed at e.g. 55 DEG  to 90 DEG C. or absorbed in a mixture of formaldehyde, water and methanol circulating at such temperatures.  Any formic acid present is removed before rectification by treatment with an anion-exchange resin.  The pure methanol obtained overhead may be used to prepare formaldehyde by vapour phase conversion as described above.  The solution of formaldehyde obtained as bottoms has a concentration of 65 to 85% and can be cooled to yield a linear formaldehyde polymer which is solid at room temperature.
Patent GB-830031-A (GB)
Title: Improvements in or relating to sewing machines having a zig-zag ornamental stitching device
IPC: D05B3/04
Filed: 1956-02-08
Abstract: 830,031. Sewing machines. TURISSA-NAHMASCHINENFABRIK A.G. Feb. 8, 1956 [March 5, 1955], No. 4000/56. Class 112 Needles, shifting laterally In a zig-zag sewing machine employing a plurality of pattern cams the selection of the desired pattern is effected by means of a single-adjusting member operatively connected to a cam sensing finger and to indicating .means embodying a separate scale of symbolic patterns. Each pattern is associated with a separate signal lamp. The cam surfaces are formed by grooves 30, 31, Fig. 3, in drums 28, 29 mounted on a shaft 27 driven by worm and worm-wheel gearing 25, 26 from the arm shaft 11. By removing the screwed plug 10a the drum 29 may be withdrawn and replaced by a different drum. A manually rotatable and axially movable shaft 22, Fig. 4, carries a rocking arm 21 pivotally connected at 20 to a link 19 coupledto the needle-bar gate, and a sleeve 35 carrying feelers 36, 37 one of which may be brought into engagement with a selected groove in one of the drums. A spring 39 attached to the casing and to the pivot 20 urges the feelers into contact with the drums. The signal lamps 45 are arranged in a member 46 behind translucent discs 50 diagrammatically marked with the various patterns and their circuits are controlled by a contact member 56 secured to feeler 37 and co-operating with contact elements 57 connected with the lamps. Feeding work. A similar control may be applied to the feed-dog mechanism. Reference has been directed by the Comptroller to Specification 736,277.
Patent GB-307596-A (GB)
Title: Improvements in or relating to means for converting radiant heat energy into mechanical energy
IPC: F03G6/00
Filed: 1928-02-08
Abstract: 307,596. Bancroft, F. E., and Metropolitan-Vickers Electrical Co., Ltd. Feb. 8, 1928. Imitation fires. - A device in which radiant heat is utilized for producing flicker effects in fires or for advertising &c. purposes comprises a pivoted system arranged normally to be balanced, but having a metallic member adapted when exposed to radiant heat to be deformed and thereby cause movement of the system. Fig. 1 shows an oscillating system consisting of a bimetallic member 1 weighted at 2 and pivoted at 6, and having an adjustable counterweight 10. Deformation of the member 1 due to heat from the source 7 causes the device to rock into the region 8 from which it returns after cooling. In a modification a number of such bimetallic members are, attached to the ends of the arms of a spider which is caused to rotate when exposed to radiant heat on one side. Fig. 4 shows the application of the oscillating system of Fig. 1 to a flicker device comprising a shaft 45 which is rocked when the system falls over. Mirrors 52 are attached to the shaft by flexible springs 51. Fig. 3 shows a rotary system comprising discs 24, 25 between which are stretched wires 33. Weights 36 arranged about the middle of the wires are embraced by a coil spring 38. When one side of the system is exposed to radiant heat, the wires on that side expand, and the corresponding weights are pulled inwards by the spring, thus upsetting the balance.