baber/WOPTO huggingface dataset:
Patent GB-1114710-A (GB)
Title: Method and apparatus for the continuous production of a suspension or slurry
Inventor: ALCOCK ERNEST
IPC: B01F3/12
Filed: 1966-03-03
Abstract: 1,114,710. Mixing in conduits. MONO PUMPS Ltd. 2 March, 1967 [3 March, 1966], No. 9393/66. Heading B1C. In a process and apparatus for making a homogeneous suspension or slurry of at least one powder with liquid (e.g. lime in sewage sludge) the powder is supplied by a helical gear pump 1 into a pipeline 12, fluidized by air injected at 3, and mixed in the T-joint 18 with liquid drawn up the pipeline 10 by the delivery pump 14. The rates of the pumps 1, 14 may be controlled by the density of the mixture. The incoming liquid (and/or the mixture, see Fig. 2 not shown) may be passed through macerator as at 8.
Patent GB-647056-A (GB)
Title: Improvements in or relating to methods of making graticules
IPC: C03C17/36
Filed: 1947-04-09
Abstract: 647,056. Vaporization coating. AMERICAN CYSTOSCOPE MAKERS, Inc. April 9, 1947, No. 9401. Convention date, April 24, 1946. [Class 93] [Also in Groups II and XX] A method of making graticules comprises masking a portion of the surface of a transparent (e.g. glass), article and leaving other portions exposed, depositing a film of vaporized metallic substance on the exposed portion of the surface and depositing a protective film of a vaporized second substance upon the previously formed film. The masks 36 are preferably of electrolytic copper 0.002 to 0.1 inch thick ; the metals deposited may be silver, gold, platinum, aluminium, chromium or rubidium ; whilst the protective substance is preferably magnesium fluoride or quartz. As described, masks 36 are placed in recesses 35 of a jig 33, cleaned transparent discs 40 are placed on the masks, and a rubber &c. based weight 41 is placed on each disc. The rubber &c rimmed cover assembly 45 is lowered to contact the base-plate 12 and the pressure then reduced inside the bell jar 46 to between 0.5 and 0.1 micron. The metal (e.g. silver) to be deposited is contained in a receptacle 20, other protective substance (e.g. magnesium fluoride) in a receptacle 21, both receptacles being of molybdenum. Current passed via terminals 14, 16 vaporizes the metal which passes through the openings 34 of the jig and the perforations 37 of the mask 36 to be deposited and form reticular patterns 371 on the discs 40. Subsequently, current is passed via terminals 14, 15 to vaporize the protective substance and cause it to be deposited on the previously deposited metal patterns 37<SP>1</SP>, finally forming the graticule shown in Fig. 5.
Patent GB-1023972-A (GB)
Title: Improvements relating to yarns comprising staple asbestos fibres
Inventor: DONALDSON WILLIAM KENNETH
IPC: D02G3/36
Filed: 1962-03-12
Abstract: 1,023,972. Yarns; thread guides; delivering rollers. TURNER BROS. ASBESTOS CO. Ltd. March 6,1963 [March 12, 1962], No. 9404/62. Heading D1D, D1F and D1W. A yarn comprises a sliver of staple asbestos fibres and at least one smooth filament on each face of the sliver, the sliver and filaments being twisted together so that each filament forms a helical winding on one face of the twisted sliver, the length of each filament in a given length of the yarn being the same as that of each other filament. The filaments may be multi-filaments of glass, smooth (i.e. unbulked) mono- or multi-filaments of nylon or polyester, or thin wires of brass, copper, zinc or stainless steel, and may be twisted in the opposite direction to the eventual twist of the composite yarn. The sliver may contain rayon or cotton fibres as a minor constituent and may be twisted. The yarn may comprise more than one filament on each side of the sliver, or two slivers with an inner and two outer filaments Fig. 12 (not shown). In one method of producing the yarn, filaments 1, 1<SP>1</SP> pass several times around a capstan 7 having freely rotatable rollers 8, 9 and then together with sliver 2 from bobbin 15 on drive drum 16 pass through guides 10 and 19, the latter being closely spaced to the nip of rollers 17,18 (or other twist stopping drive) so that the filaments 1,1<SP>1</SP> can not slide away from the sliver 2. The guide 10 has U-shaped eyes 12,13,14 Fig. 5 (not shown) for the filaments and sliver, while guide 19 which ensures that the filaments approach the nip at an angle of about 30‹ has V-shaped eyes 20, 21, 22, Fig. 6 (not shown) or is diamond, Fig. 7 (not shown), or circularly shaped with, if necessary, a different guide 10 to ensure that the filaments and sliver change direction at guide 19. The sandwich of the sliver between the two filaments is twisted by a flyer 23 with both the flyer 23 and bobbin 24 positively driven in synchronism with the drive of drum 16 and roller 18. In another method Fig. 10 (not shown) the capstan 7 may comprise a positively driven roller and an idling roller, with the twisting effected by ring spinning, or by a flyer with either the flyer or bobbin idling. In other methods the capstan may comprise a tension pulley with each side of a V-shaped circumferential groove having teeth which intermesh with the teeth of the other side so that the filaments follow a zigzag path, or may be replaced by a package containing equal lengths of the two filaments and which may be braked during unwinding.
Patent GB-572442-A (GB)
Title: A new or improved method of and means for constructing suspended floors and ceilings
IPC: E04B5/26
Filed: 1943-06-12
Abstract: 572,442. Floors etc.; girders. GIBSON, G. M. June 12, 1943, No. 9497. [Class 20 (iv)] A floor or roof and ceiling construction comprises spaced flanged concrete girders of inverted T-shape carrying ceiling slabs F on which are superposed arched or canted members G upon which a concrete floor H is cast in situ. The members H, G which may be constructed of lightweight material such as porous concrete, sawdust concrete or plaster board abut against the vertical member of the girder and the girders A are reinforced as shown by lower and upper members C, D interconnected by wire fabric E. As an alternative, strips such as D may constitute both the upper and lower members of the reinforcement.
Patent GB-679475-A (GB)
Title: Heat-responsive snap-action electric switch apparatus
Inventor: MARTIN CHARLES STANLEY
IPC: H01H37/60
Filed: 1949-04-07
Abstract: 679,475. Thermal switches. TRIP-LITE, Ltd. May 5, 1950. [April 7, 1949] No. 9499/49. Class 38 (v). A switch for an electric iron or other apparatus has a bimetallic element 6 heated by a heating coil 25 and by the apparatus, and a snap acting switch element 5, the two elements being interengaged in the regions of their greatest movements. The snap-acting element 5, Fig. 4, is a trifurcated blade spring comprising a central compression blade spring 7 and outer tension blade springs 8, the free end of the blade 7 engaging a notch in an adjustable abutment 15 and a strip 10 joining the ends of the blades 8 engaging in a notch in an anchorage 11. The junction 9 of the three blades or strips 7, 8 carries a contact 18 and a U-shaped member 19 with a roller 21. The other switch contact 29 is carried by and insulated from the bimetallic strip 6. The contacts 18, 29 are normally closed, but as the temperature of the strip 6 increases, the end of the strip 6 moves up and through the contacts 18, 29 moves the element 5 through its dead centre position, causing the element 5 to snap up to open the contacts 18, 29. The roller 21 now engages the underside of the strip 6, so that as the strip cools it can move the element 5 back through the deadcentre position to cause the contacts to reclose with a snap-action. The lost motion connection between the element 5 and strip 6 provided by the member 19, enables the element 5 to make its snap action movement in both directions. The provision of the heating coil 25 to provide heat for the strip 6 in addition to the heat received from the controlled apparatus is stated to reduce the time lag in the operation of the switch so that the temperature differential between the opening and closing of the contacts is small.
Patent GB-642014-A (GB)
Title: Lock means for door control mechanism
IPC: E05B65/32
Filed: 1948-04-05
Abstract: 642,014. Door latches. TRIGGS, W. W. (Schonitzer Products Co.). April 5, 1948, No. 9520. [Class 44] In a door latch of the kind in which energy is stored in the closing movement of the door and released for unlatching and opening of the door. the operating means for tripping the detent associated with the latching member for causing unlatching may be rendered ineffective. The invention is shown applied to the latching mechanism described in Specification 501,613. In the form of Figs. 1 and 2 a pivoted latch member 12 is adapted to be engaged by a stud on the door joint as the door closes and turned into the locked position shown in which the spring 40 is loaded. A plate 35 secured on the inside of the stud shaft 31 is retained in the locked position by a pivoted detent 54 having a shoulder 56 engaging a part 57 on the plate. A second lever 54a mounted on the same pivot 55 has a projection 54b engaging the edge of the detent 54 and biassed by a spring 58 to urge the detent into the retaining position. The lever 54a may move in opposition to the spring independently of the detent unless they are connected by a movable member 102 disposed to engage in one or both coincident notches 54c formed in the edges of the lever and detent. An outside push button 60 is arranged, by contact with an arm 62, to rotate the lever 54a and when the member 102 is in the connecting position, to release the detent and permit unlatching. With the member 102 in the inoperative position the lever 54a turns idly under the action of the push button. The member 102 is slidably mounted on a fixed pin 100 and is shifted by means of a pivoted lever 98 operable from the inside by means of a rod 106 and from the outside by means of a barrel lock 103 through an arm 104. The lever 54a may be actuated from the inside by a rock shaft 75 having an arm 79 acting through an idler 147. The push button may be located in a boss forming part of a door handle. In another form, Fig. 12, the latch controlling plate 350 is retained by a detent 540 arranged to be displaced out of the retaining position by a lever A abutting at D. The lever is actuated by a spring member G arranged to slide to and from a position in which the upper end may be engaged by the pin E of a push button 600. The member G is moved by an eccentric pin H mounted on the barrel lock 1030. The latch and detent mechanism is mounted as a unit on a base plate 320 secured to the end wall of the door, and the button and lock are assembled in another unit, mounted on the outer wall of the door.
Patent GB-107263-A (GB)
Title: Improvements in Furnaces.
Inventor: DAVIS HAROLD NEWSOM
IPC: C21D9/70
Filed: 1916-07-06
Abstract: 107,263. Davis, H. N., and Twigg, W. R. July 6, 1916. Reverberatory furnaces.-Oil and gas fired furnaces for heating steel billets or ingots, crucibles and the like are con. structed with a raised hearth or floor e with channels beneath it, through which, as well as over the hearth, the flames and hot gases from the burners j pass after deflection by the walls and roof of the furnace. The gases finally escape through vertical flues f communicating with the main flue h through which the air-supply pipe l passes.
Patent GB-244326-A (GB)
Title: Improvements in railway crossings
IPC: E01B7/14
Filed: 1925-04-29
Abstract: 244,326. Smith, C. H. B. April 29, 1925. Crossings with movable parts; mechanically operated by vehicle.-A wedge-shaped extension C is fitted in front of and in addition to the ordinary crossing Vee and is moved parallel to itself. The extenaion C is mounted on flat or round slide bars passing through the wing rails and connected by cradles E. The extension bears at each end on the chair seats or on plates carried by the sleepers, and is operated in conjunction with the switches or by additional safety bars. These bars comprise angle-irons hinged at one end and having at the other end studs which work in inclined grooves in the end faces of the extension, so that the crossing is set by approaching wheel flanges. A points lock D and detector F may be fitted.
Patent GB-258185-A (GB)
Title: Attachment for wheels of lawn-mowers
IPC: A01D34/62
Filed: 1926-04-12
Abstract: 258,185. Bjorkman, T. E. F. April 12, 1926. Rims.-Means for increasing the diameter of a wheel of a lawnmower to facilitate the cutting of lawn edges &c. consists of one or more rings detachably secured about the rim of the wheel. Each ring may consist of two concentric rails 3, 4 connected together by radial distance-pieces 5 or by a continuous web. The outer rail 4 is grooved externally to prevent slipping. The ring is split and the ends are connected by a clamping screw 6. Projections 7 engage the outside of the wheels 2 to prevent axial movement. A similar ring may be secured around the first ring as shown, and a third about the second, and so on. The rings may be divided into segments and provided with two or more connecting screws 6. The segments may be connected by hinges.
Patent GB-629483-A (GB)
Title: Improved manufacture of organosilicon amines
IPC: D06M15/643
Filed: 1947-04-10
Abstract: Organo-silicon amines of the general formula RnSi(NR12)4-n, or mixtures thereof, wherei each R and R1 represent an alkyl radical, are prepared by reacting the corresponding alkyl silicon halide or mixtures thereof with an alkyl secondary amine under anhydrous conditions. The alkyl radicals in the alkyl silicon halides may contain from 1 to 18 carbon atoms, e.g. methyl, ethyl or octadecyl groups.  A suitable secondary amine is diethylamine.  In examples, diethylbisdiethylaminosilane, octadecyltri-N: N-diethylaminosilane and a mixture of methyltri-N : N-diethylaminosilane and diethylbisdiethylaminosilane are prepared.  Some diethylchloro-N-diethylaminosilane is obtained.  The Specification as open to inspection under Sect. 91 refers to the preparation of organo silicon amines of the above general formula where n is 3, and in an example, triethyl-N-diethylaminosilane is prepared.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1303613-A (GB)
IPC: D04B15/74
Filed: 1971-04-19
Abstract: 1303613 Knitting-machines TEMA TEXTILMASCHINEN-VERWALTUNGS GmbH 19 April 1971 [16 April 1970] 9853/71 Heading D1C A pin drum comprises a drum having axial slats 6 in which are located synthetic resin perforated rails 7 in which steel pins 11 can be inserted.
Patent GB-293778-A (GB)
Title: Improved process and plant for the continuous manufacture of floor coverings
IPC: D06N1/00
Filed: 1927-04-11
Abstract: 293,778. Lannoye, A. April 11, 1927. Coating fabrics in long lengths; multiple superposed coatings; special fabric bases; treatment prior to coating; fabrics composed of fibrous materials agglutinated by adhesives.-In a process for the continuous manufacture of floor covering consisting of impregnated felt, the various operations comprising the preparation of the felt, pressing, drying, heating, immersion in bitumen, polishing, cooling, coating, drying, printing, and varnishing are carried out continuously on one long length of material. The plant comprises a tun a, Fig. 1, containing the pulp from which the felt is made, a strainer b, a metal cloth c on which the felt is deposited, and presses d, e, f, Fig. 2. The felt passes over steam heated drying- cylinders g, pressure being applied in order to dry it completely, between steam heated platens i, Fig. 3, and into the heated bath h of bitumen. On leaving the bath it passes between polishing rollers j, Fig. 4, and is then cooled by a cold air blast or spray k. Thence it passes to a coating- machine l, in which the back is coated with natural or artificial resin, and to drying racks p. A second coating-machine n applies colour to form the ground of the face of the material. which then passes to drying racks p', Fig. 5. After drying for about twenty four hours, the material passes to a rotary printing-machine 1, 2, in which the pattern is printed on the face. The printing may be effected in a machine comprising a plane table and plane stamps. From the printing-machine, the material passes to a further set of drying-racks, thence to a varnishing-machine, to further drying-racks, and to a winding-up apparatus. The operation of heating preparatory to immersion in the bitumen ensures that the resulting material will be, free from bubbles or holes caused by steam.
Patent GB-769411-A (GB)
Title: Improvements in or relating to processes for separation by distillation or sublimation
IPC: C12N1/00
Filed: 1954-04-05
Abstract: In a process of short-path, high-vacuum distillation or sublimation, which is particularly advantageous for removing water <PICT:0769411/III/1> from tissue cultures and virus suspensions, the distillate is collected as a solid on the condensing surface, and is subsequently removed therefrom, as a separate stage, by raising the temperature of the condensing surface and that of the distilling surface, so that the solid sublimes off the condensing surface and the vapour leaves the distilling chamber via the connection leading to the evacuation system.  In the Figure the chamber formed by the double-walls of glass vessel A is connected to vessel C, which is cooled by liquid air and communicates at E with a high-vacuum pump (not shown).  The equipment is connected at D to a McLeod gauge. Within the double-walls of vessel A a thin layer of 0.20 cc. of a virus suspension is spread on a wall a, and maintained at about -75 DEG C. by a mixture of solid carbon dioxide and alcohol in bath b. After the chamber has been evacuated to a pressure of about 10-3 mm. Hg, the outer wall c is immersed in a bath of liquid nitrogen at -195 DEG C.  After a short time a deposit of ice forms, and thereafter continues to grow, on the inner wall d.  The stated conditions of temperature and pressure are maintained for about 1 hour. Subsequently, the solid CO2 and alcohol are removed from bath b so that the wall a is left in free heat-exchange with air at room temperature; and the liquid nitrogen surrounding wall c is replaced by alcohol having a temperature of about 25 DEG C.  The pressure as indicated by the McLeod gauge is maintained unchanged.  After about 1 1/2 hours the ice is found to have disappeared from the inner wall d; and the virus suspension as found to be substantially completely free of water.
Patent GB-991512-A (GB)
Title: Photocopy machine
IPC: G03D9/00
Filed: 1963-03-13
Abstract: 991,512. Photographic processing apparatus. SPEED-O-PRINT BUSINESS MACHINES CORPORATION. March 13,1963 [April 2, 1962; Sept.19, 1962], No. 9908/63. Heading G2A. A photocopying machine has a removable trough for holding processing liquid, the two ends sloping outwards with a flat central part between them; separating means at the entrance keep the two photographic sheets out of contact until they are submerged in the liquid. As shown, the machine comprises a housing 2 within which is supported a removable trough 4. The inner face of the trough slopes upwards at its front and rear ends, as at 10 and 7, while its central part 5 is flat, or substantially so, for an appreciable distance. The trough may itself have a removable lining 16. At the front end of the machine is a spacer member 21 having spaced fingers 21a projecting from its lower edge extending well below the surface 26 of the developer liquid in the trough. The machine is intended for the diffusion transfer process, and the exposed negative is fed into the machine through opening 23, below the spacer, and the positive is fed in above the spacer. Thus the negative and positive sheets are kept apart until they are both immersed in the liquid. After passing beyond the fingers 21a, no further guides are provided for the upper sheet. The two sheets come into contact as they are guided along the flat part 16b of the trough, and their weight keeps them submerged until they are guided by the sloping side 16a to pass upwards to the wringer rollers 27, 28. These grip the sheets and pull them out of the developer liquid, at the same time squeezing them together to effect the transfer.
Patent GB-818518-A (GB)
Title: Improvements in or relating to a device for hand-operated machine tools for carryingout comb-jointing and like operations
IPC: B27F5/02
Filed: 1958-03-28
Abstract: 818,518. Wood working. BOSCH G.m.b.H., R. March 28, 1958 [April 12, 1957], No. 9956/58. Class 145. A device for fitting to a power-driven hand tool to enable comb joints to be cut comprises a work table 16 having a slot 17 for a tool 18 of the width of the comb recess to be cut and a guide 31 having a width not greater than that of the recess so that the workpiece can be guided by engaging a previously-cut recess with the guide. The guide may have pins 32, or slotted resilient ends bent down at right angles, for insertion in pairs of holes in the table top, the pairs of holes being staggered to allow adjustment of the position of the guide to suit tools of different widths ; alternatively, the guide may have a grooved member at one end to engage the edge 45 of the table and a screw at the other end to clamp on the flange 46 on the table. The table has pins 13, 14 fitting in tubes 11, 12 on a support plate 10 and the support plate has a spilt clamp 21 for securing the device to the power-driven tool.
Patent GB-419207-A (GB)
Title: Anti-reflux device for drains
IPC: E03F5/042
Filed: 1933-04-03
Abstract: 419,207. Valve fittings for drains. VIVENOY, G., 40, Rue du Serpentin, Ixelles, Brussels. April 3, 1933, No. 9988. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 3, 1933.] [Class 33.] A device for incorporation in a drainage system to prevent back flow, comprises a casing with an inlet and outlet, an annular seating applied to the inlet, a floating ball within the casing and two inwardly-projecting ribs arranged obliquely upon the wall of the casing and above the ball for the purpose of guiding it towards the seating. The casing may also be provided with ribs beneath the ball on which it rests during normal conditions. In a form for use with a branch conduit opening into a main conduit, Figs. 1 and 2, the casing is shaped as shown to provide upper and lower ribs a<1>, b<1>, and lateral chambers h and a lower chamber a for the free passage of floating matter. The seating is in the form of an inclined annular rim d with a sharp edge. The ribs a<1> are downwardly curved at the end remote from the seating to limit the travel of the ball s, whilst the ribs b<1> do not extend to the wall opposite the seating. The upper part of the casing may be in the form of a removable cover. In another form, Fig. 4, the device forms part of a gulley trap, the inlet of the gulley being constituted by a cylindrical rotatable member having a number of pipe-ends, a sludge collector being provided. In another form the seating is secured to the inlet grating and a relief-pipe, which may also serve as an additional inlet, is provided. Specification 20229 /05, [Class 33], is referred to.