baber/WOPTO huggingface dataset:
Patent GB-306137-A (GB)
Title: Improvements in ballasting devices for moored dirigibles
IPC: B64F1/14
Filed: 1929-02-11
Abstract: 306,137. Krell, O. Feb. 16, 1928, [Convention date]. Endless-track vehicles.-A truck R for supporting the ballast rope or chain of a moored dirigible comprises wheels r<1>, r<11> and an endless-track K<1>, K<11> on each side pivoted at D<1> and D<11> to the underframe. rods T<1>, T<11> connecting the tracks at front and rear to form a parallelogram to facilitate control. Motors m<1>, m<11> independently operable, are provided to drive the wheels. The truck may be driven straight ahead or diagonally, and is steered either by varying the speeds of the different motors on each side or by driving them in opposite directions. A. storage battery disposed low in the truck is preferably provided as driving means for the winch w and the tractor and to prevent overturning, and the gauge is made at least double that of ordinary tractors with the same object. A trough-like body T with curved walls c, c<1> is provided to hold the ballast, the rear wall c<1> folding down about the hinge d to facilitate handling the ballast by the winch w. The tractor may be controlled from a distance or automatically by the motion of the rope as soon as it is deflected beyond a particular angle to the vertical.
Patent GB-884774-A (GB)
Title: Improvements relating to electrical switches
Inventor: GOODIER GEOFFREY THOMAS
IPC: H01H17/16
Filed: 1959-02-10
Abstract: 884,774. Cam-operated switches. NETTLE ACCESSORIES Ltd. Feb. 9, 1960 [Feb. 10, 1959], No. 4569/59. Class 38 (5). A switch adapted to be actuated by a pull cord has a rotor with an even number of teeth, so arranged that alternate teeth close the switch, the rotor together with its pivots being moulded in one piece in insulating material. A pawl 14 pivotally mounted in a stirrup 15 is urged by a spring 17 and plate 16 into contact with a rotor 13 pivoted in slots 12 in each half of the casing 1, 2. Each pull on a cord 18 turns the rotor by one tooth, the pawl riding over the teeth on the return stroke, and alternate teeth are wide enough to move two spring-loaded contact blades 9 away from their corresponding contacts 7, 8 and 5, 6. The intervening teeth are narrower and pass freely between the contact blades. The rotor is located in the ON and OFF position by a spring blade 20 which presses on two adjacent teeth. The upper end of a two-pronged lever 22 rests in the ON position on a wide tooth and its lower portion is biased to the right (in Fig. 2) by the lower portion of the spring blade 20. When the switch is open, the spring 20 turns the lever 22 about its fulcrum 23, the prongs resting beside a narrow tooth, to move the shutter 25 aside and uncover the legend " OFF." In an alternative embodiment, the switch acts as a change-over switch, terminals 3 and 5 being strapped together. The rotor 13 then has alternate teeth off-set axially so that successive strokes of the pawl 14 connect either terminal 4 or 6 alternately to the common conductor, the indicator being omitted in this application. Both the rotor 13 and pawl 14 are made of a low-resistance plastic material such as nylon.
Patent GB-733068-A (GB)
Title: Process for synthetic resin manufacturing
IPC: C09F1/04
Filed: 1952-02-22
Abstract: A synthetic resin is made by condensing at over 120 DEG  C. a resin acid material and a tri-or higher methylol ketone prepared by condensing 1 mol. of ketone and 3 or more mols. of formaldehyde in presence of a divalent metal oxide or hydroxide as catalyst. The resin acid material may be (a) rosin and other natural resin or the resin acids obtainable therefrom; (b) heat treated natural resins, e.g. pyroabietic acid; (c) natural resins treated with di- or trivalent metal oxides or hydroxides; (d) natural resins esterified with alcohols, e.g. glycerol, di-or polyglycerol, sorbitol or pentaerythritol; (e) the reaction product of a natural resin with a methylol phenol, maleic anhydride or styrene or its homologues or an ester of such a reaction product or a salt of such a reaction product with a di-, a trivalent metal; or (f) a rosin modified alkyd resin prepared from rosin, phthalic acid or anhydride and a di-, tri- or higher polyhydric alcohol.  The resin acid material may be mixed with a vegetable or animal oil, e.g. linseed oil or linseed stand oil prior to condensation. Specified ketones are acetone and its homologues, and alkene, cycloalkane, aromatic and hydro-aromatic ketones.  The condensate of the polymethylol ketone and resin acid material may be (a) esterified, e.g. with glycerol or pentaerythritol; (b) reacted with a di-, tri- or higher polyhydric alcohol and phthalic acid or anhydride to form a modified alkyd resin; or (c) reacted with a methylol phenol, maleic anhydride or styrene.  The condensates in admixture with stand oils, solvents (e.g. aliphatic hydrocarbons) and driers yield varnishes and when admixed with fillers and natural or synthetic resins form moulding compositions.  In an example a product obtained by condensing formaldehyde and acetone in presence of calcium hydroxide is heated with colophony esterified with glycerol.  Specification 625,144 is referred to.
Patent GB-602092-A (GB)
Title: Dispersions and their manufacture
IPC: C09K23/00
Filed: 1946-02-14
Abstract: An aqueous dispersion contains a higher (i.e. having more than 8 carbon atoms in the molecule) fatty acid ester of a liquid monohydric alcohol as the disperse or the continuous phase and a dispersing agent comprising one or more partial esters of a higher fatty acid and a polyhydric alcohol.  The aqueous phase may be water, salt solution, or skimmed milk.  The esters used as the dispersing agent may be derived from glycerol, polyglycerol or saccharides, and may be mixed with alkali soaps, lime soaps, lecithin, triethanolamine, or triethanolamine soaps.  In examples: (1) water is dispersed in the ethyl ester of mustard seed oil fatty acid using a dispersing agent made by reacting mustard seed oil with polyglycerol; (2) the ethyl ester of mustard seed oil fatty acid is dispersed in water using stearic acid monoglyceride as the dispersing agent.  Methyl or propyl esters may be used in place of the ethyl ester.  The products are used for lubricating purposes.ALSO:Lubricants consist of an aqueous dispersion containing a higher fatty acid ester of a liquid monohydric alcohol as the disperse or continuous phase and a dispersing agent comprising one or more partial esters of a higher fatty acid and a polyhydric alcohol (see Group III).  The aqueous phase may be water, salt solution, or skimmed milk.  The dispersion may also contain alkali soaps, lime soaps, lecithin, triethanolamine, or triethanolamine soaps.  In examples (1) water is dispersed in the ethyl ester of mustard seed oil fatty acid using a dispersing agent made by reacting mustard seed oil with polyglycerol; (2) the ethyl ester of mustard seed oil fatty acid is dispersed in water using stearic acid monoglyceride as the dispersing agent.  The Specification as open to inspection under Sect. 91 refers to the use of the compositions for lubricating forms and plates in bakeries. This subject-matter does not appear in the Specification as accepted.
Patent GB-665373-A (GB)
Title: Improvements in or relating to production of dense oxide bodies
Inventor: WALKER RAYMOND FRANCIS
IPC: C04B35/64
Filed: 1949-02-21
Abstract: Dense bodies of refractory oxides, e.g. beryllia, alumina, zirconia and thoria, are produced by sintering shaped masses of the oxides while enveloped in a non-reacting gas containing free carbon.  The body may be shaped by slip casting or cold pressing, and the shaped mass may be pressed during the heat treatment.  The presence of free carbon during the sintering is obtained by heating the body in, say, a graphite tube furnace, or by heating in the absence of massive graphite, and in the presence of an atmosphere of inert or non-reactive gas, e.g. argon or nitrogen containing a carbon suspension or a gas decomposable to release carbon.  The process is described in detail in connection with beryllia, which is ball-milled. treated with dilute hydrochloric acid for the removal of iron, made into a slip, and cast into a plaster of Paris mould; the air-dried castings are usually prefired at 1000 DEG C., and sintered at 1500-1800 DEG C. for 10-30 minutes in an inert or reducing gas in a graphite tube furnace. (Reference is also made to sintering in a beryllia tube in the presence of hydrogen and carbon dioxide, reacting to produce carbon monoxide).  Alternatively, beryllia powder is pressed at 3100 per sq. inch in a graphite crucible heated up to 1600 DEG C. in a graphite tube furnace swept by argon, the pressure being maintained.  For alumina, a sintering temperature of 1700 DEG C. for 3 minutes is mentioned, and for zirconia and thoria, 1800 DEG C. for 10 minutes.
Patent GB-1448404-A (GB)
Title: Method and apparatus for mounting terminal pins
IPC: H01R43/20
Filed: 1974-02-01
Abstract: 1448404 Mounting terminals in circuit boards; riveting MOLEX Inc 1 Feb 1974 [16 Feb 1973] 04807/74 Headings B3A and B3U A method of mounting a terminal pin 10 in a circuit member 18 comprises, overlaying a loading plate 20, having at least one hole 50 sized slidingly to receive a single pin 10, with a feeding plate 22 having at least one hole 52 communicating with the or at least one hole 50, placing pins 10 on the feeding plate 22, the pins having lengths less than or approximately equal to the thickness of the plate 22 and less than or approximately equal to three times the diameter of the holes 52, and simultaneously vibrating the loading and feeding plates to position groups of the pins in the holes 52 and a pin from each group in a hole 50, Fig. 5 (not shown). The plates 20, 22 and the circuit member 12, which may be a printed circuit, are placed on a table 32 of a vibrating device 24, the table being slightly inclined to the horizontal, so that surplus pins run off the plate 22 as it is vibrated. When the pins 10 are located in their respective holes 50, the plate 22 is removed and the surplus pins remaining on the plate 20 are removed by vibration. A pressure plate (56), Fig. 7 (not shown) is lowered on to the plate 22 to force the pins 10, which are of square crosssection, into round holes 14 in the circuit member 12 and simultaneously to compress resilient strippers 54. The member 12 is supported on a plate 18 and the lower ends of the pins 10 pass through the holes 14 into holes 42 of larger diameter in the plate 18. Alternatively the plate 18 may not be provided with holes. The strippers 54 separate the plates 18, 20 after the pressing operation and the circuit member 12 is removed from the table 32.
Patent GB-1166381-A (GB)
Title: Method of Forming a Thermoplastic Article.
Inventor: COFFMAN PAUL MAHONEY
IPC: B29C43/54
Filed: 1967-02-01
Abstract: 1,166,381. Moulding thermoplastic compositions. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 1 Feb., 1967 [3 Feb., 1966; 4 March, 1966; 25 Aug., 1966], No. 4820/67. Heading B5A. A method of forming a thermoplastic article comprises placing a predetermined amount of a molten thermoplastic polymer into a mould cavity defined by a rigid surface and another surface which deforms under moulding pressure applied by forcing down a second rigid surface into contact with the polymer to close the mould; at least one of the rigid surfaces is heatconducting whereby the polymer is cooled while under pressure and solidified. The composition treated may be polypropylene, high density polyethylene, a polyamide or a polyacetal &c., and particularly a composition which shrinks on cooling; it may contain additives such as pigments, stabilizers and powdered or fibrous fillers such as glass fibres, asbestos &c. In one embodiment a stream of molten polymer is extruded on to a plate and then transferred to preform mould 21, Fig. 2, where it is compressed to slab form by a plunger 22 and cooled. An elastomeric liner insert 23 surrounds the polymer, and during the compression causes the edges of the slab to become concave. The resultant slab 25, which is smooth surfaced and void-free is then held on a base 31 by a ring 33 and cut into annular billets by a downwardly forced cutting die 37. Each billet 39 is compressively shaped into a wheel by opposed dies 51, 52 acting within a cylinder 53; a mandrel 55 is forced through the central opening of the billet. The wheel may then be further trimmed. Scrap material from the cutting and trimming operations is returned to re-grinding apparatus for further use. The preform may be formed by placing the molten material on a flat ram and within a liner also placed on the ram, and compressing the material by an opposed ram. The liner may comprise an inflated rubber tube.
Patent GB-1483011-A (GB)
Title: Plain bearing
IPC: F16C43/02
Filed: 1975-02-05
Abstract: 1483011 Bearing GLACIER METAL CO Ltd 4 Feb 1976 [5 Feb 1975 17 Sept 1975 15 Oct 1975] 4849/75 38142/75 and 42115/75 Heading F2A A plain bearing comprises a part cylindrical journal shell 11 and a separate end flange 12 engaged in a recess 15 in the back of the shell at or near one end and located circumferentially by co-operation of at least one notch in the shell and at least one lug 22 on the flange. The recess is preferably in the form of a groove and a lug is provided at each circumferential end of the flange with the corresponding notch in the shell for each lug. The whole length of the radially inner edge of the flange, other than the portion at the lug(s) preferably lies in the recess. The shell and flange may be assembled by flexing the shell radially inwardly and allowing it to spring back with the recess embracing the radial edge of the flange. Where the shell is not sufficiently flexible, the or each lug may be deformed out of the plane of the flange while it is assembled in the recess and then the lug(s) is deformed back into the circumferential location position. Alternatively the shell and flange may be assembled at the inner edge of the flange just outside the recess and then the inner edge is deformed at local parts and forced into the groove. Such local parts are conveniently lubricant grooves where the material is thinner than the rest of the flange. The end of the shell preferably tapers axially outwards and the inner edge of the flange tapers radially inwards.
Patent GB-1101255-A (GB)
Title: Ketones
IPC: C07C45/71
Filed: 1966-02-04
Abstract: Novel aliphatic carboxylic ketones of the formula <FORM:1101255/C2/1> and <FORM:1101255/C2/2> where n is 0 to 8, R1 and R2 represent hydrogen or a methylene or ethylene bridge, R3 and R4 are H or C1- 8 alkyl or form a C4- 8 saturated carbocyclic ring, are produced by reacting a carbocyclic ketone of the formula <FORM:1101255/C2/3> with an acetylenic alcohol of the formula HC­C-C(R3)(R4)-OH, preferably in the presence of an acidic catalyst.  A mixture of the compounds (I) and (II) is thus produced, and these may be separated, e.g. by fractional distillation.  The preferred catalyst is a sulphonic acid, e.g. methionic acid, and the reaction mixture is preferably heated to 80 DEG  to 200 DEG  C, using an inert solvent, e.g. p-xylene or benzene. The exemplified reaction is that between cyclohexanone and propargyl alcohol, yielding compounds (I) and (II) in which R1, R2, R3, R4 are all hydrogen, these two compounds being separated by fractional distillation.
Patent GB-572432-A (GB)
Title: Improvements in or relating to vaned doors
IPC: E05F1/12
Filed: 1944-03-17
Abstract: 572,432. Doors. AIRD, J. H. March 17, 1944, No. 4988. [Class 20 (iii)] In a double door wherein two vanes 10, 11, opening in opposite directions, when closed enclose a substantially triangular space 27 and wherein the vanes are pivoted by spring-biassed hinges about a vertical axis 12 so that when one vane is opened the other is normally kept closed by the spring, the fillet 14 on one of the jambs engaged by one of the vanes 10 when closed is pivoted to the jamb so that by swinging the fillet out of the path of the vane 10 both apertures may be fully opened. The vanes then being locked in parallel planes as shown in Fig. 3. Alternatively completely free passages may be afforded by opening both vanes fully into coplanar position and locking them therein.
Patent GB-1373731-A (GB)
Title: Walls consisting of metal planks
IPC: F16B5/00
Filed: 1972-02-03
Abstract: 1373731 Vehicle bodies SWISS ALUMINIUM Ltd 3 Feb 1972 [5 Feb 1971] 5176/72 Heading B7B [Also in Division F2] Metal plates 1, 2 have interfitting end portions formed as shown so as to create a cavity 3 into which there is introduced a locking member in the form of a helical rolled strip spring 4. The spring 4 in its unstressed condition is of slightly larger diameter than that of the cavity 3 and is introduced into the cavity by engaging a slotted end of a rod (5, Fig. 3, not shown), with one end of the spring and rotating the rod so as to wind up the spring helic sufficiently for the spring to pass easily into the cavity, and then withdrawing the rod.
Patent GB-720754-A (GB)
Title: Improvements in or relating to remote control systems
IPC: G05D3/12
Filed: 1953-02-24
Abstract: 720,754. Electric control apparatus. SADIR CARPENTIER. Feb. 24, 1953 [March 29, 1952], No. 5199/53. Class 40 (1) A motor-driven controlled shaft is brought into any one of a predetermined number of discrete positions, in correspondence with the position to which a control shaft is moved, by a system comprising a first member locked to the controlled shaft and a second member capable of slight movement relative to the first, the second member determining the predetermined position approximately and the first member then stopping the controlled shaft accurately in predetermined position. The first member 6, second member 9, and a contact disc 11 are shown schematically in Fig. 1 and in true relative positions in Fig. 4. Movement of the control shaft positions switch 14 to operate relay 18 which energizes motor 1. The motor drives cam 6 through clutch 2, the pin-and-slot connection 7, 8 permitting selection cam 9 and contact disc 11 to remain stationary momentarily, so that when cam 6 lifts pin 25 and lever 23 to close contacts 22, the pin 25 rides on one or other of cams 6 and 9 as shown in Fig. 4. When a gap 37 in contact ring 36 comes to the contact stud 12 corresponding to the new position of switch 14, relay 18 releases to change over contacts 19-21 and reverse the motor 1. The pin-and-slot connection allows cam 9 and contact disc 11 to remain stationary due to friction, but as cam 6 reverses, the pin 25 falls into the aligned notches on cams 6 and 9, the cam 6 and the controlled shaft being finally halted when the radial face of the slot in cam 6 abuts against the pin 25. The motor is halted by the opening of contacts 22.
Patent GB-1452926-A (GB)
Title: Tool turret for a lathe
IPC: B23B29/24
Filed: 1973-02-02
Abstract: 1452926 Tool carrying turrets ALFRED HERBERT Ltd 21 Jan 1974 [2 Feb 1973] 5303/73 Headings B3T and B3B A polygonal tool turret is provided with a plurality of peripheral faces and a corresponding number of recesses 13, 14, 15 in an end face of the turret which extend at right-angles to the respective peripheral faces. Two diametrical opposite peripheral faces are formed with projections 10, 11 to form strengthening lobes to permit the use of roughing tools 12. One of the recesses is set at an angle to a radius of the turret for accommodating a parting off tool, the remaining recesses all being angularly spaced and extending radially of the turret. A setting stop member 26 is located in one of the recesses and has a projection 27 which is engageable with a groove in a boring bar holder mounted on a corresponding one of the peripheral faces, a stop 28 being provided on the holder which coacts with the base 13 of the recess to determine the axial position of the holder.
Patent GB-355272-A (GB)
Title: Apparatus for condensing sulphur
IPC: C01B17/02
Filed: 1930-02-17
Abstract: <PICT:0355272/III/1> <PICT:0355272/III/2> <PICT:0355272/III/3> <PICT:0355272/III/4> Apparatus for condensing sulphur vapour to recover the sulphur in freely flowing liquid form comprises an inner shell forming the condenser chamber and consisting of header sections connected by an intermediate tube section, an outer shell spaced from and surrounding the inner shell and forming therewith a fluid-containing jacket, means being provided for controlling the fluid pressure in this jacket and for withdrawing condensed liquid sulphur and residual gases and vapours from the condensing chamber. In one form, condensers 10a, 10b, 10c connected in series are used, the sulphur vapours entering, through tube 24, a header portion 14 of the condenser chamber of condenser 10a, and passing up through tubes 12, which have helical baffles 22, to a header 16.  When the sulphur is to be collected at the lower temperature range at which it is freely liquid, about 113-160 DEG  C., the outer jacket of the condenser is supplied with water through an inlet 18, and the steam generated is vented through an outlet 20 having a pressure-regulating valve 67.  A pressure gauge 68 is provided.  The liquefied sulphur runs off through an outlet 30 to moulds &c.  The residual gases and vapours pass through a tube 26 to condenser 10b, flowing downwards therethrough, and finally up through condenser 10c.  The three condensers are similarly constructed and may be maintained at different temperatures by controlling the steam pressures in the jackets, e.g. condenser 10a at 150 DEG  C. and the others at 135 DEG and 115 DEG  C. respectively.  Each of the water-inlets 18 may be connected to a constant level water feeder.  Other forms of baffles, e.g. perforated horizontal plates, may be used in the tubes 12, or the baffles may be omitted.  The three condenser jackets may be connected by means of water pipes 65 having valves 66, the feed water being first supplied to condenser 10c and led in series through the jackets. In a further form, Fig. 4, (not shown) a single condenser arranged nearly horizontal is employed, the liquid sulphur and residual gas and vapour outlets being both situated at the lower header of the inner shell.  Where the condensers are operated without baffle means in the tubes, the residual gases and vapours are preferably passed through apparatus in which any sulphur mist remaining therein is collected.  This may be formed of a chamber 58, Figs. 6, 7, having a steam jacket 54 and provided with rows of baffles 60, or with a plurality of inclined shelves.  The apparatus may be used for condensing sulphur within the higher temperature range at which it is in freely flowing liquid form, e.g. 240-250 DEG C., by replacing the water used in the jackets by a suitable liquid of high boiling point.  The apparatus may be used in the process of Specification 321,911, [Class 90, Non-metallic elements].