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Publication numberUS1666918 A
Publication typeGrant
Publication dateApr 24, 1928
Filing dateMay 19, 1927
Priority dateMay 19, 1927
Publication numberUS 1666918 A, US 1666918A, US-A-1666918, US1666918 A, US1666918A
InventorsScoville Eugene M
Original AssigneeFloyd L Swanberg
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sight feed
US 1666918 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

April 24, 19,28.

E. M. SCOVILLE SIGHT FEED Filed May 19. 1927 in operation.

Patented Apr. 24, 1928. d



SIGHT FEED] `Application flied. May 19,

This. invention relates in general to imyf provements in sight feeds, rand relates more specifically to improvements in the construction and 'operation ofvisible flow indicators` forv liquids such as lubricating oil or the like.

leakagel of liquid is positively eliminated.

Ajfurther object of the invention is tov providea ycompact sight flow device which is simple in construction and (highly efficient Still another'object of the iii-y vention is to provide a sight. feed unit which may be readily manufactured, assembled and dismantled. A. further object of the invention is to` provide a flow indicating lunit which may be conveniently installed vandV manipulated, and the various elements `of which may be `quickly, adjusted. Another object of the invention is to providea sight feed lubricator which may ,be readily ,in-g spected and cleaned'in orderto maintain the same in operating condition, andv wherein an',

emergency source of' lubrication" may bey provided in case the normal source of'supply fails. 4Still another object of the in-1 vention is to provide a sight feed which is,

readily insertible as aunit between anoil supply line and a source of utilization,v re.

gardless of the relative position of thesupply line outlet and the source inlet. These` and other objects and advantages of the..

improvement will be apparentfrom the follOWIlg description. Y l y A clear conception of -an eiiibo'diment*ofj the invention and ofthe mode of operating,

adjusting and installing devices constructed' in accordance therewith, maybe'had by fre-v ferring to the drawingl accompanying vand forming a part of this specification in which like reference characters designate the same or similar parts in the various views.

Fig. 1 is a central vertical section through 'I vided with internal abutment surfaces 19 one of the improved sight feeds,y showing the same completely assembled.

. Fig. 2 is a side elevation of the `assembled y p the. casing 5, this coaction being such' that sight feed.

An object vof the invention is to provide er tov 1927,; semi No. v192,771).

Fig. 3 isa feed.

top view of the assembled sight` Fig. itis aftop `viewl of a modified form of fluid ldistribution fitting' adapted for interchangeable "application to the sight feed ofFigslto.v f y Fig.,5` is a'l top view of another *form of fluid r,distribution l,fitting which is inter changeably appl-icableto the sight feed.

to the fluid supply and distributing fittings.

A.The 'improved sight feedspecically illus- `trated in the drawing, comprises in general a main body 2 having lateral side openings; a threaded base 3 detachably associatedwith the lower portion of the body 2 and adapted forattachmentdirectly to a bearing or'the like; acasing pivotally associated with Vthe upper'portion lof the body 2; clamping structure consisting ofv a nut 6 having screw thread coaction with the casing 5 and adjustable relatively tothe body'v 2; and..l one of several 'different types vof fluid distribution fittings 4.-, d

24, 34, 44,54; interchangeablyand reversibly f cooperable with-thecasing 5 between the body 2` andthe nutr 6. A Resting upon thek base 3y V within the body 2, is a tubular transparent member 1l the upper end of whichis normally engagedbyr a centrally perforatedannular retaining capV 10. The cap 10 is con.

stantly rurged y,in va Vdownward direction against themember 'll by means of ahelioal f spring'lfthe upper end' of which reacts against the lower endof the casing, and the 'transparentvmember11 may be freely removed through thelateral openings of thel body 2 wheiitlie cap l0 is raised against the action l of `the spring l5.y When the transparent `member 1l has been removed, the ldownward movement of the cap 10 is limited by means of stop pins 28 secured to the body 2, \these pins also serving-tok center the member 1l. .y l y,

Theupper portion .of the body 2 is pro- Which areengaged lby an annular flange or lugs fo'rmedintegral with the lower end of fill vwith a threaded socket and the lower discharge end of which is in vertical alinernent with the .final discharge passage 21 of the base 3. The upper threaded socket of the casing 5 may either be sealed by means of a pipe plug 7 as shown, or may beprovided with an emergency oil cup for delivering oil directly to the bearing or other source of utilization through the passages 17, 21, in case the normal source of supply fails, The casing 5 also provided with 'an annular eX- ternal recess 16 which is communicable with the central passage 17 through a lateral port 45. v Each of the fluid supply and distributing fittings 4, 24, 34, 44, 54, is provided with one or more radially disposed threaded openings 23, and with a central bore 26 adapted to snugly lit the enternal cylindrical surface of the casing 5 and to thus inclose the re.- CQSS The. :fittings 4'# 847 4&1 are also provided with threaded bosses 25 each formed for the reception of a needle valve 14 as shown in Fig'l, the needle valve being adjustable by means of a hand wheel 22 and having an inner pointed end cooper-able with the port 45 to control the fiow therethrough, The littings 4, 24, 34, 44, 54 are moreover provided with oppositely disposed chamfers 27 adjacent to the bores 26, 'these chamfers being filled withsuitable packing material in the assembled structure. The threaded bosses 25 of thel fittings are additionally provided with packing elements 18 foi-.sealing the j ointaro'und the needle valve 14.

Each of the threaded openings 23 is formed for the interchangeable reception of either a union 12 such as shown in Fig. 1, 0r a union 13 as shown in Fig. 8. When the coupling type of union 12 shown in Fig. 1 s employed, the Supply and discharge Pipes 9 may be attached to the unions 12by means of 4pipe couplings 8, lWhen the threaded type of union 13 shown in Fig. 8 is employed.` the supply and discharge pipes may attached ,directly to the threaded socket-s of the, unions in an obvious manner,

Of the live diderent types of fittings 4, 24, 34, 44, 54, the fitting'4 is of the single symmetrical type wherein the single opening 23 is in direct alinement with the boss 25g The fitting 54 is of the single-type wherein the opening 23 extendsv at right'a'ngles relative to thel axis of the boss 25. The fitting 44 is of the double z'symmetrical type wherein the oppositely disposed alined openings 23 are disposed at right angles to the axis of the boss 25, and the fitting 34 is ofthe double type wherein one opening 23 is in alineme'nt with the axis of the boss 25 while the tion. The base 3 `may other opening 23 extends at right angles thereto. 'The fitting 24 is of the three way type wherein one opening 23 is disposed in direct alinement with the boss 25 while the other two opposed openings ,3 are in aline,- ment with` each other but extend at rightv angles to the boss axis. All of these fittings arev interchangeably and reversibly cooperable with common casing 2.

When assembling the sight feed, the easing 5 is first slipped through the lower end of' the body 2 after which the spring 15, cap 1 0 and'pins 28 are successively applied to maintain these elements in assembled relathen be attached to the body 2 after which the transparent inember 11 may be inserted between the base 3 and the cap 10. Any one of the iittings 4, 24, 34, 44, 54 maythen be slipped over the upper end of the casingv 5, and the clamping nut 6 subsequently appliedv to lock the lltting against the body 2 with the axis of the boss 25 in alinement with the ,port 45, suitable packings having been previously applied yin the chamfers'27. The pipe plugA and needle valve 14 may then be applied. in an obvious manner thus completing the vas.- semblage of' the sight feed. The' installation of the sight feed may readily be effected by attaching the base 3 to the bearing and by attaching the supply and dischargepipes 9 to the fitting which embraces the casing 5. If the opening 23 of the fitting is not prop erly directed to accommodate attachment of the supply pipe 9, after attachment ofthe base 3 to the bearing,fthe clamping nut k(i may `bereleased, thereby permitting free angular adjustment of the distributing fitting about the casing 5. 4

During normal operation-'of .the sight feed '1 when utilizing a single fitting 4, 54, the en` tire supplykorn oil is admitted from the supply pipe 9 to the recess 16 and is delivered in` controllable 'quantities past thev needle valve 14 to the passage 17 from whence it gravitates through the transparent member 11 to the bearing'through the discharge pas# sage 21. All of the oil admitted tothe recess 16 is thus delivered to the single bear-y ing when the single fittings are eniployed,` and the member ll'provides a visible indi-l cation of the rate of feed. W`hen utilizing either ofthe multiple fittings 24, 34, 44, only ajportion of the oil supplied to the recess 16 of the casing 5,`is delivered through the port 45 thereof, the remainder ofthe oilv supplied being discharged through the openings 23 other than that being utilized as a supply" opening, and which other openings may be connectedA to other sight feeds associated with additional bearings of a group.v lf'it j is not desired to utilize one or more of the openings 23 of a multiple fitting, such open- `ing or openings may be sealed by means of a pipe plug 7 cooperating with a union, and

"s be;


an emergency oil-cup maybeprolvided `in.

substitution for the closure'plug atk the top of the casing 5, wheneverl desired.v The reversibility of the fittings is especially useful when employing fittingsvv l34,54 as shown inV Figs. 6 and4. rIhese fittings 34, 54 may be* reversed with respect to the casing 5 in.:y

order to accommodate. connection thereof to supply or distribution'pipes'9disposed at v right angles to each other or to the axis of the needle valve 14, in an obvious manner, and lthus eliminate necessity of providing right and left hand fittings.

From the foregoing description it will be apparent that the improved sight feefd` while being extremely simple and compact iii construction, is also highly r`flexible as to installation and adjustment.v Thendeviceis moreover exceedingly eliicient in operation and may be readily assembled and dismantled.

Thetiansparent member 11 maybe convene iently removedv or applied'while the sight feed is in operation, and the pacliiigs effectively pievent undesirable escape of oil. The reversibility and interchangeability of the fittings 4, 24, 34, 44, 54v reduces to'a mini-` mum the number of stock parts required and the angular'adjustment ofthe fittings greatly facilitates installation of the sigl'itfeed. The unions l2, 13' also enhance the flexibilityk of the unit andenable the use of any desirable form of piping.

It should lbe understood thatit is not desired to limit the inventionto the exact details of Construction and operation herein shown and described, for various modifications within the scope of the claimsfm'ayl occur to persons skilled in the art.

It is claimed and desired to secure byfIieti ters Patent gj y l. In combination, a body having'` a normally visible interior, a transparent member confined within said body, a casing carried by and having passages communicating with the interior of'sai-d body, clamping structure adjustably coacting with said casing, 'and a fitting embracing said casing andadjustablyl retained imposition by said body and said clamping structure.

2. In combination, a body having a normally visibleinterior, a transparent` mein-l ber confined within saidvbody, a casing roby said body, and resilient means cooperating ywith said casing and witlisaid member to retain said member in position within said body.

4. In combination, a body having. opposite side openings, a? transparent tubular member located within .said-,body and removable through one-of said openings,VV a casing coacting with said .body above said openings, anda spring "cooperating with said, casing and with said member to resiliently retain',

said tube inn position, said tube being removable `through said openingby compressing said spring.'

5. In combination, body having a side opening, a transparent; tubular member covering said opening, a casing pivotally associated. with said .body and having internal `passages',means for controllingthe flow of vfluid through said passages to' said body,

clamping structure adjustably associated with said casing, and a fitting for introduc-` f i ingvliqi'iid'to` said casing, said fitting being adjustably'retained in position by said body and said clamping structure.

- 6. In combination, la'bo'dy having aside opening, a transparent member covering said opening, a casting rotatably attached to said body above said opening, said casing having passages ycommunicating with they interior ofy said lbody,'a fitting pivotally supported'by said body and embracing said casing, and a needle valve carried by said fitting and adjustable relative to said casing to control'the flow of liquid through said'pa'ssages. v

7. In combination, a body having a side opening,r a casingrotatable relative to the upperv portion of said body, a transparent tubular memberv located within said body andv removable through said opening, a cap coactingy with the top `of said member, and a `spring coacting with saidcasing and lwith said'icap yto retain 'said membei' in position.

Q8. In combination, a body having a side opening, a base secured. to said body'v below said openingga casing securedto said body above saidropening, a ytransparent tubular memb'errestingupon vsaid base Within said body,ia`cap resting upon said member adl joining saidopening, and a` spring coacting cap' and with an end of' directly with said said casing. l i .f

9. In combination,- a body having a side opening, a base secured tothe `bottom of said body, acasing rotatable relative to the top upon said base, a capresting iiponsaid -meinber, a spring coacting-with said cap and with said casing, and a fitting angularly adjustably coacting with` said casing and with Vsaid body.



of said body, atransparent member IrestingV 10. In combination, a hollow body having a side opening, a transparent member cover-j` ing said opening, a casing secured to the upper portion of saidjbody, said casing having a through passage vdirected toward said body and also havinga laterally extending passage, removable means for normally sealing the upper end of said through passage,

and aiitting embracing said casing and providing a liquid supply conduit communieating with said lateral passage.

l1. In combination, a body having ,an opening and an interioi normally visible through said opening, a transparent menibei` covering saidopening, a casing-,carried by and having passages coinn'ninioating With the interior of said body, clamping structure adjustably carried by said easing, and a 'fluid supply fitting reversibly coopeifable with said casing; and adjustably ietained in position by said body and said Clamping structure.

12. ln combination, a body having a noiina-lly visible interior, a easing@` pivotally associated with and having passages communicating with the inteiioi` oil? said body, ola1nping structure adjustably carried by said Casing, and a fluid supply fitting reversibly oooperable with said easingand angularly adjustably retained in position by said body and said clamping stimotni'e7 said itting having at least tvvo fluid conducting passages, radiating from the central axis of saidcasfittings interchangeably coope'rable With said casing between said body andsaid Clampingl stiruetui'e. n l n In testimony whereof, the signature of the inventor 1s afhXe-d hereto.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2608301 *Oct 23, 1950Aug 26, 1952Geiger Jr Doctone BenjaminLiquid indicator and strainer for refrigerating systems
US2725844 *Aug 16, 1952Dec 6, 1955Albert WittlinFlow indicator
US4655078 *Jan 30, 1985Apr 7, 1987Johnson Augustus WSprinkler drain and test valve
US4852610 *Dec 28, 1987Aug 1, 1989Agf Manufacturing, Inc.Valve and arrangement for fire suppression water sprinkler system
US4971109 *Sep 27, 1989Nov 20, 1990Agf Manufacturing, Inc.Valve and arrangement for fire suppression water sprinkler system
US4993453 *Mar 8, 1989Feb 19, 1991Agf Manufacturing, Inc.Valve and arrangement for fire suppression water sprinkler system
US4995423 *Mar 8, 1989Feb 26, 1991Agf Manufacturing, Inc.Valve and arrangement for fire suppression water sprinkler system
US5036883 *Oct 3, 1989Aug 6, 1991Agf Manufacturing, Inc.Valve and arrangement for fire suppression water sprinkler system
US5269344 *Mar 8, 1990Dec 14, 1993Agf Manufacturing, Inc.Supply valve and arrangement for fire suppression water sprinkler system
US5406979 *Aug 10, 1992Apr 18, 1995Acf Manufacturing, Inc.Valve and sensor arrangement
US5588462 *Apr 17, 1995Dec 31, 1996Agf Manufacturing, Inc.Valve and sensor arrangement
US5944051 *Sep 25, 1997Aug 31, 1999Johnson; Augustus W.Sprinkler drain and test valve
US6186169Aug 19, 1999Feb 13, 2001Agf Manufacturing, Inc.Valve and arrangement for fire suppression system
US6206034Aug 19, 1999Mar 27, 2001Agf Manufacturing, Inc.Valve with integral flow switch
U.S. Classification184/96, 116/276
International ClassificationG01P13/00
Cooperative ClassificationG01P13/008
European ClassificationG01P13/00C