US1324955A

US1324955A - chapmani

Info

Publication number: US1324955A
Authority: US
Publication date: 1919-12-16
Anticipated expiration: 1936-12-16

Description

.L. CHAPMAN;

lMPERMEATlNG INSTRUMENT.

APPLICATION FILED SEPT. 13. 1918.

1,324,955. Patented Dec.16,1919.

3 SHEETS SHEET 1.

L. CHAPMAN.

IMPERMEAILNG INSTRUMENT.

APPLICATION FILED SEPT. 13. I918.

Patented 1110.16, 1919.

3 SHEETS SHEET 2.

' l'nvcntor dlm%/41% Ag, w e fl ym L. CHAPMAN.

IMPERMEATING INSTRUMENT.

' APPLICATION FILED SEPT. 13. ms.

' Patented Dec. 16, 1919.

3 SHEETS-SHEET 3,

.Evventor Fri/blesses WW 5%. 11a.

LEONARD CHAPMAN, OF LONDON, ENGLAND.

IMPERMEATING INSTRUMENT.

Specification of Letters Patent.

Patented Dec. 16, 1919.

Application filed September 13, 1918. Serial No. 253,999.

To all whom it may concern:

Be it known that I, LEONARD CHAPMAN, a subject of the King of England, residing at London, England, have invented certain new and useful Improvements in Impermeating Instruments, of which the following is a specification.

The object of this invention is to provide means for introducing particles of solids (such as powdered graphite or mica or finely-divided material) into the steam supply of engines or into the steam-spaces of boilers and also for the ready securing of the s: id means on the cylindric exterior of horizontal or vertical or inclined pipes of various diameters or to objects having flat surfaces.

In the apparatus hereinafter described the method employed for gradually removing the finely-divided material from a container thereof which it occupies in the form of a column, is the gradual washing away of the material at the foot of the column around the outer margin thereof by water of condensation which carriesit into thesteam-supply.

.in iInpermeating-instrument according to this invention comprises at the top, a tube of circular exterior which to contain a column of finely-divided material and has a sight-feed chamber beneath it and comniunicating with it, and below the sightfeed chamber a junction-pipe combined with an inclined bracket.

An impermeating-instrument according to this invention is illustrated in the accompanying drawings, in which Figure l is a vertical central section of the impermeating-instrum ent Figs. 1 and 2 are sections, on the lines 1 and 2 respectively, in Fig. 1, of adetail of that figure hereinafter referred to;

Fig. 2 is an elevation of the instrument corresponding to Fig. 1, except that the bracket forming the bottom of the instrument is rotated out of the position it occupies in Fig. 1 through 180 degrees as hereinafter described.

Fig. 3 is. as to its upper part, a vertical central section of the instrument shown in Figs. 1 and and as to its lower part, a partial el vation of the instrument with' the bracket aforesaid in position corresponding with that in which it is shown in Fig. 2;

Fig. 4: is a sectional plan on the line fr-ii. in Fig.

Fig. 5 is a plan of the upper part of Fig. l in section on the line 55 in Fig. 1;

Fig. 6 is a plan of Fig. 2; and

Fig. 7 is a view of part of Fig. 3 modified to show an alternative construction with ei ht bolts hereinafter referred to.

ike letters represent like parts through out the drawings.

In these drawings, an endwise-adjustable tube T of circular exterior, which is to contain the column of finely-divided material has near its lower end perforations P, and also, at a lower level, notches N. lf'hese perforations and notches enable said lower end to serve as a duplex valve V. Screwthreads 8T are provided'on the upper ex terior circumference of the tube. A jacket J provided with heat-radiating wings W encircles said tube and is clear thereof intermediate of the ends ofsaid tube, to afford an annular space AS-between the jacketand V the tube. On the upper nteriorof the jacket are screw-threads JT which engage the threads ST on the tube. An annular valve-face F is formed on the lower part of the jacket-interioijin proximity to and cooperating with the exterior of the aforesaid valve V near the level of the perforations.

P therein, the lower edges of which are, in the drawing, on the level of the shoulder F of the valve-face F.

A conical disk D is held stationary in a funnel FL hereinafter again referred to and forming the lower portion of the jacketcasting; the disk is co-aXial with the lower end of the inner tube T, and has its nose DN directed upwardly thereinto. The outer margin DM of said disk is shaped to form an annular valve-face in proximity to and cooperating with the interior of the aforesaid valve V at the level of the notches N therein. T ie stem D of the disk D extends downwardly" therefrom as shown, into a sight-feed chamber SF beneath the jacket 5 and integral with the funnel FL, which latter forms a downward continuation of the walls of the j acket J The disk D and stem D have a central bore D extending through them and the disk and bore are blocked at the upper end of the bore by a screw D screwed into a threaded portion of the upper end of said bore. Integral with the upper portion of the stem D which has a downwardly-depending conical portion D are four radial wings D which support the coned disk D centrally in the tunnel FL, and are cut away by the central bore D so that openings 1) from the funnel FL into the bore exist at the bottom of the tunnel between the wings D The lower portion of the stem is formed at D as a circular plug which fits tightly into and closes the tunnel-exit, except for the openings 1) into the central bore D aforesaid, the said circular plug being integral with the wings D and having below it a reduced portion or nozzle D through which the bore delivers into the upper part of the sight-teed chamber. This nozzle is centralized in the upper opening SF of the sightfeed device SF by four small radial wings D on the nozzle between which there is free passage upward from the sight-feed chamber SF around the nozzle D as far as the underside of the plug D.

The sight feed chamber SF is in the form of a short horizontal cylinder and in the ends of the cylinder are transparent windows SF SF secured in the usual manner and in themselves not novel.

Studs S which project from the inside of the inner tube near the top thereof as shown, are provided in order that a rotating tool of a suitable kind can be engaged with them to adjust the tube T endwise by screwing it up or down in the screw-threads J T of the jacket.

A cap-seat is formed on the jacket as an upstanding flange JT a little above the level of the top end of the inner tube T and concentric therewith but larger, so that an annular gutter G exists between the outside of said tube and the inside of said fit nge.

A cap K closes fluid-tight the upper end of the instrument, being seated like a valve upon the beveled face or cap-seat JT of the flange JT This cap has a beveled rini K- which bears upon the cap-seat and extends therefrom downwardly and inwardly. The cap also has in its underside a central cavity K sloping downwardly and outwardly from the center thereof and meeting the said hereled riin so as to form where they meet a drip-angle ring K directed downwardly toward the aforesaid annular gutter G. Any products of condensation forming on the underside of the cap K will run down to the drip-angle ring and drop therefrom into the gutter G.

A bridge-piece BP straddles the upper end of the jacket when the parts are in the positions in which they are shown in Figs. 1, 2 and 5. A screw-threaded spindle SP boars at its lower end upon a disk K in arecess K in the top of the cap K and is encircled by a collar 3 pinned to it by a pin a and provided with flanges s which are engaged by a cover-plate K held in place by screws K in the cap, the said flanges 8 being circular so that the spindle SP can be rotated in the cap but cannot be drawn out of it upwardly. At the upper end of the spindle SP is a hollow handle SH and on the spindle are screw-threads S which engage a threaded bore in the central boss 3) of the bridge-piece 131?. By rotating the spindle SP the cap K can be screwed down upon or raised clear of the flange JT Flanges BF and BF (the former constituted by a ring carried on and forming the base or lower part of the bridge-piece) respectively extend horizontally therefrom, the flange BF being down-turned and extending inwardly, as shown. Corrcspondin g flanges JF and JF with which the flanges BF and BF respectively engage are provided on the outside of the jacket J, the flange JF being directed horizontally and inwardly and the flange J F 2 horizontally and outwardly. The flanges BF and JF are completely circular; the flanges and JF are sectors only.

The bridge-piece and the cap K secured to it as aforesaid by the spindle SP are together pivoted to the jacket by a pivot PV fixed in a lug J on the jacket and passing through a lug B formed on the ring BF the axis of this pivot is vertical, so that it the cap K be first raised clear of the jacket by operation of the spindle SP the ca p and bridge-piece can thereafter be swung clear from the position in which they are shown in Figs. 1, 2, 3 and 5 into the position in w rich they are shown in Fig. 6, thus leaving the inner tube I open for inspection, cleansing or recharging.

Cast upon one wall of the jacket ant sight-teed chamber SF (the wall which is to the right hand. in Figs. 1, 5 and G) are steam conduits SC, SC (Fig. 1) connected by an intermediate annular steainconduits S6 the latter covered at its outer side by an inspection-cap 1C held in place by a central screw 1C The lowest conduit Sc leads upward from the annular passage -way which below the collar D is left around the lowest portion. of the stern D in the opening SF in the sight-feed chamber, to the annu lar conduit SE whence the conduit SC proceeds to the upper end of the annular space AS surrounding, as hereinbeiore explained, the inner tube T. From the upper end of this annular space AS a helical groove HG extends across the face oi the threads in the bore of the jacket J, upwardly into the gut tor G for the purpose oi draining that gutter into the annular space AS.

The tunnel FL hereinbefore referred to, is in fluid-tight connection at its upper end 1 .''ith the bottom of the inner tube T, which latter makes a sliding {it with it.

At the bottom or" the sight-feed chamber is a flange SF with a central opening SF through it leading downward from the bottom of the interior of the sight-feed chant her. A junction-pipe JP leads down from the flange SF. On this junctioirpipe. are upper and lower flanges JP J1. The flange JP is bolted to the flange SF. The junction-pipe is of bent form andwhen the upper flange J P is horizontal the lower flange J1 is normal to an axis m-y inclined out of the axis a Z) of the upper flange by an angle of forty-five degrees. There is a passage through the junctionpipe, the upper portion JP of this passage being at right angles to the flange J P and the lower portion JP being at right angles to the flange J1.

Where these passages meet is a coned seating JP for a steam-valve SV constituted by the cone-pointed end of'a spindle SV screwthreaded into a boss JP of the junction pipewhich is provided with a stuflingebox JP" of the usual or any convenient type. SV is a hand-wheel on the spindle SV for operating it. Threaded into the lower end of the junction-pipe JP is a tube SW con-- stituting a virtual continuation of the pas- .age JP and extending downwardly in the line of the axis r0y and out froin'the bottom of the instrument.

In the line of the'inclined aXis x-yis a tubular flanged bracket BR of- Hsection, with a central tube b7 cast in about the neutral axis of the section concentrically with the tube SW. This bracket has an upper flat end or flange BB bolted to theflange JP by four bolts BB and normal to-said inclined axis m-3 and has a lower flat end or flange BB inclined by forty-five degrees out of a plane normal to saidinclined axis m;

The four bolts BB are parallel to, and spaced apart at equal angular intervals around, the axis of the bracket BR. lVhen the bolts are removed the bracket BR can be turner. into four angular positions about the said axis in which the bolt-holes in the flanges BB and J1 will coincide. In the position in which it is shown inFig. 1 the bracket has its lower faceBR horizontal. By rotating the bracketthrough one hundred and eighty degrees out of that position the bolt-holes will be brought into a position of coincidence wherein the face BB will be found in the vertical plane as shown in 2. V

In Fig. 7 whichis a view of part of Fig. 3 modified to show an alternative construction, the connection between the upper end of the bracket BB and the lower flange JP of the junction-pipe is made by eight parallel bolts distributed around the axis of the lower portion of theiunction-pipe at equal angular intervals. lVith this construction thd bracket BR can be rotated about the axis rcg Fig. 1, into eight different angular positions in which the bolts will fix'it, two of which positions will correspond to the position in which it is shownin Figs. 1

and 2 respectively, the others being intermediate angular. positions in whichithe bot tom face of" the bracket BR will be askew, that'is to say not in a horizontal plane as in Fig: 1, nor in-a vertical plane as in Fig. 2, but in an? intermediate plane.

The: instrument isintended to be secured upon cylindrical surfaces such as the exterior surfaces of steam-pipes, for. example, whichrmay be horizontally or vertically disposed, or inclined- To. enable it to fit these surfaces closely, pads 1 are provided. Each-such pad has a'flat surface, the edge of which is seen at P in Figs. 1, 2, l and 6, audit cylindric surface P the edge of which is seen in Figs. 4 and'6 and which isindi cated alsoiniFigs. 1 and 2. The cylindric surfaceis curved to suit the size of steampipe't'o which'the device is to be fitted, and the flat surface abuts against the corresponding flat surface on the bracket BR. l/Vith any single instrument a number of these padsmay be sent out if desired, to suit varying dimensions of steain-pipe, the curvature ofthesurface P difl'eringin the different pads:accordingly. Screws P? passthrough the lower portion'of the bracketBR into the pad, to secure bracket and pad together. In the lower part of the bracket, holes H are provided above sacldle shaped projections BS formed on the bottom of the bracket.

In Figs.-3 and d the instrument is shown secured'toa pipe which is in section and is lettered From'these views it will :be seen thatthe holes. H and saddlepieces are to re-- ceive' metal straps STR which pass through the holes andcan be made to encircle the pipe and pass through a plate PL bearing against; the opposite side of the pipe the straps beingscrew-threaded at their ends to 105 receive nuts 4% which when tightened pull the plate PLandpad 1 toward oneanother so as to'hold theinstrument hard home upon the pad, and the latter upon the pipe, .so that between the curved underface of the pad'P and thepipe close contact will exist all around a hole in'the pipe through which the tube SW will project into the steamspace.

The opera'tionof the device is as follows The interior ofthetubeT is filled with graphite or other powdered material larly, around the nozzle D and up the steam-conduits S0 S6 SC into the jacket-space AS and on up the helical groove HG into the top end of the instrument. Radiation occurs facilitated by the wings W, and condensation of steam follows in the jacket-space AS, these processes continuing so that water collects in the bottom of the space AS and passes downward out of it throughthe perforations P and passing on downward through the contents of the inner tube over the top of the conical disk D and out through the notches N, carries with it some of the finely-divided material from the lower outer margin of the column. This material flows with the water down the coned surface of the funnel, in between the wings D and down through the bore D being delivered by the nozzle D" down through the sight-feed chamber and passages SF JP and J1, and thence, still downward, along the lower side of the bore of the pipe SvV to the delivery end of the latter. The rate of this flow will be dependent on the amount of condensation-water which collects in the jacket-space AS and this can be controlled by suitably adjusting the steam-valve SV which determines the rate at which the steam-supply for condensation flows up from the pipe SW into the upper portion of the instrument.

While the lower outer edge of the column of material in the inner tube T is being thus eroded and carried away the material above gravitates downwardly to take its place and in this gravitation the central portion of the conical disk D acts as a central wedge in regard to the descending column tending to open its sides outwardly, away from its axis, preventing it from taking and clogging and directing it toward the notch outlets N.

The lower end of the inner tube T may be so formed and dimensioned that while it constitutes a valve with relation to the outer margin of the conical disk, it makes as to the exterior of the vertically-movable cylindric valve, merely a sliding fluid-tight joint with the annular seating formed on the lower part of the jacket interior, without controlling openings P shown in dotted lines which can be situated at a slightly higher level than the valve-controlled perforations P; for these latter they would be substitutes as far as the admission of water by them to the lower interior of the tube is concerned, though in such a case they would always be open and would not (unlike the perforations P) be controlled by the parts F F aforesaid.

WVhat I claim as my invention and desire to secure by Letters Patent is l. A lubricator for heavy lubricant comprising steam jacket container, means for feeding steam to said jacket, feed openings for water of condensation from the jacket to the container, outlet openings from the container for the water of condensation and the lubricant, and means for adjusting the size of said openings, substantially as de scribed.

2. A lubricator for heavy lubricant comprising a steam jacket container, means for securing said container to a steam pipe through which the lubricant is fed, means for feeding steam from the steam pipe to 3. A lubricator for heavy lubricant comprising a steam jacket container, means for securing said container to a steam pipe through which the lubricant is fed, means for feeding steam from a steam pipe to said jacket, feed openings for water of condensation from the jacket to the container, outlet openings from the container for the water of condensation and the lubricant, connection between said outlet openings and the steam pipe to feed the water of condensation and the lubricant to the steam pipe, and means for adjusting the size of said openings, substantially as described.

4L. A lubricator" for heavylubricant comprisinga steam jacket container, means for securing said container to a steam pipe through which the lubricant is fed, means for feeding steam from a steam pipe to said jacket, feed openings for water of condensation from the jacket to the container, outlet openings from the container for the water of condensation and the lubricant, connection between said outlet openings and the steam pipe to feed the water of condensation and the lubricant to the steam pipe, means for adjusting the size of said openings, and means for regulating the amount of steam fed to the jacket, substantially as described.

5. A lubricator for a heavy lubricant comprising a casing, a container therein, there being a steam jacket between the casing and the container, means for feeding steam to said jacket, feed openings for water of con densation through the wall of the container for feeding water of condensation from the jacket to the container, outlet openings from the container for the water of condensation and the lubricant, a plug in the lower end of said container and arranged to act as a valve for varying the size of the openings leading from the container, and means for adjusting the container for varying the size of said openings, substantially as described.

6. A lubricator for a heavy lubricant comprising a casing, a container therein, means for closing the top of said casing, there being a steam jacket between the outer wall of the container and the casing, openings through the wall of the container for the water of condensation to pass from the steam jacket into the container, means for supplying steam to the steam jacket, a valve member seated in the lower end of said container, there being openings from said container -for the combined water of condensation and the lubricant, and means for adjusting the container relative to the valve member to vary the size of said openings, substantially as described.

T. A lubricator comprising a casing, a container for a lubricant therein, a seat in said casing adapted to be engaged by periphery of the container to form a relatively tight joint, there being a steam space between the container and the wall of the casing above said seat. means for feeding steam to said steam space, a valve member seated in the lower end of the container, there being openings in the inner wall of the container through which the water of condensation and the lubricant are fed, and means for adjusting the container relative to said valve member to vary the size of said last mentioned openings, substantially as described.

8. A lubricator comprising a casing, a

container for a lubricant therein, a seat in said casing adapted to be engaged by the periphery of the container to form a relatively tight joint, there being a steam space between the container and the wall of the casing above said seat, means for feeding steam to said steam space, a valve member seated in the lower end or" the container, there being openings in the inner w ll of the container through which the water of condensation and the lubricant are fed, means for adjusting the container relative to said valve memher to vary the size of said last mentioned openings, and a removable cover for the cas 7 lug, substantially as described.

9. A lubricator comprising a casing, a container for a lubricant mounted therein, a seat in said casing adapted to be engaged by the wall of the container, there being a steam space between the container and wall of the casing above said seat, there being openings through the wall of the container communicating with the steam space and the interior of the container, recesses in the inner face of the container below the upper edge of said seat and communicating with the interior of the container and a chamber within the casing below said seat, said container forming a joint with said seat, there being a second chamber below the last mentioned chamber, a passage in communicationwith the first and second chamber through which the lubricant passes, there also being a passage communicating w1th said second chamber and the steam space, and a valve controlled passage for admitting steam to the second chamber and for permitting thelubricant and water of condensa tion to flow therethrough, substantially as described.

10. A lub-ricator comprising a casing, a container for a lubricant mounted therein,

a seat in said casin ada )ted to be en a ed by the wall of the container, there being a steam space between the container and wall of the casing above said seat, there being openings through the wall of the container communicating with the steam space and the interior of the container, recess-es in the innor face of the container below the upper edge of said seat and communicating with the interior of the container and a chamber within the casing below said seat, said container forming a joint with said seat, there being a second chamber below the last mentioned chamber, a passage in communication with the first and second chamber through which the lubricant passes, there also being a passage communicating with said second chamber and the steam space, a combined closure for the container and the casing, and a'valve controlled passage for admitting steam to the second chamber and for permitting the lubricant and water-of condensation to flow therethrough, substantially as described.

11. A lubricator comprising a casing, a container for a lubricant mounted therein, a seat in said casing adapted to be engaged by the wallet the container, there being a steam space between the container and wall of the casing above said seat, there being openings through the wall of the container communieating with the steam space andthe interior or" the container, recesses in the inner face of the container below the upper edge of said seat and communicating with the interior of the container and a chamber within the casing below said seat, said container forming a joint with said seat, there being a second chamber below the last mentioned chamber, a passage in communication with the first and second chamber through which the lubricant passes, there also being a pas sage communicating with said second chamher and the steam space, a combined closure for the top of the casing and the container, means for adjusting the container longitudinally for varying the size of the openings from the container to the first chamber below the seat, and a valve controlled passage for admitting steam to the second chamber and for permitting the lubricant and water of condensation to flow therethrough, substantially as described.

12. A lubricator comprising a casing, a container for a lubricant threaded therein, a cover for said casing having conical walls, means for securing said cover in position, there being a recess for water of condensation in the upper end of the casing, a steam space between the container and the jacket, there being a channel communicating with said steam space and a space for the water of condensation below the cover, means for feeding steam to said steam space there being a seat in the casing at the lower end of the steam space arranged to be engaged by the outer portion of the container, a valve member in the lower end of the casing, there being openings through the wall of the container above said seat for feeding water of condensation to the container, there also being openings leading from the inside of the container to the lower end of the casing through which the water of condensation and the lubricant pass, the container being arranged to be adjusted vertically with relation to the valve member to vary the size of said last mentioned openings, a connection with a steam pipe communicating with the steam feed'for the steam space, a communication between said connection to the steam pipe and the lower end of the casing through which the water of condensation and the lubricant pass, and means for varying the amount of steam passing from the steam pipe to the steam space, substantially as described.

13. A lubricator comprising a casing, a container for the lubricant therein, there being a steam space within the casing surrounding the container, a seat in the lower end of said casing engaging the outer face of the container, a valve member in the lower end of said casing, there being openings from the steam space through the wall of the container for feeding water of condensation from said steam space to the container, openings through the lower end of the container around the edge of said valve, means for adjusting the container vertically to vary the size of said last mentioned openings, a closure for the upper end of the easing having conical walls, there being a channel in said casing below the apex of said walls for receiving the water of condensation which drips from the cover, there being a commimication between said channel and the steam space, a chamber below said valve member Within the casing, a sight feed chainber below said last mentioned chamber, there being a passage communicating with the sight feed chamber and the chamber below the valve in the lower end of the casing, a steam connection between the sight feed chamber and the steam space between the casing and the container, and a connection from said sight feed chamber to a steam pipe through which the water of condensation and of the lubricant are fed and through which the steam is fed for heating the lubricator, and a valve in said connection for varying the opening to the steam pipe, substantially as described.

14:. A lubricator comprising a casing having a yoke member pivotally connected thereto, a cover for the casing mounted in said yoke, and a screw for raising and lowering the cover with relation to the casing, substantially as described.

15. The combination of a lubricator and a plurality of attaching brackets having steam openings therethrough, each of said brackets having two securing faces at an angle to each other, and arranged to be secured in different positions to each other and with relation to the lubricator and the part to be lubricated, substantially as described.

16. A lubricator for heavy lubricant comprising a steam acket container, means for feeding steam to said jacket, feed openings for water of condensation from the jacket to the container, and outlet openings from the container for the .water of condensation and the lubricant, substantially as described.

17. The combination with a lubricator and a plurality of attaching brackets having steam openings therethrough, each of said brackets having two securing faces at an angle to each other and arranged to be secured in different positions to each other and with relation to the lubricator and the part to he lubricated, of a steam controlling valve in one of said brackets for controlling the llow of steam through said openings, substantially as described.

In testimony whereof I affix my signature.

LEONARD CHAPMAN.