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Publication numberUS2304571 A
Publication typeGrant
Publication dateDec 8, 1942
Filing dateNov 7, 1941
Priority dateNov 7, 1941
Publication numberUS 2304571 A, US 2304571A, US-A-2304571, US2304571 A, US2304571A
InventorsJoa Curt G
Original AssigneeJoa Curt G Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Conveyer lubrication
US 2304571 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Dec. 8, 1942. JOA 2,304,571

CONVEYER LUBR ICATION Filed NOV. 7, 1941 INVENTOR Cuer 6. Jon.

ATTOQNEYS.

Patented Dec. 8, 1942 UN IT E D STATES PAT E N T O F Fl C E 2,304,571 CONYEYER LUBRICATION .Curt G. Joa, Inc.,

poration of Wisconsin Application November 7, 1941, Serial No. 418,145 9 Claims. (01. 184-15) This invention relates to improvements in con veyer lubrication.

It is the broad object of the present invention to provide a novel and improved means for .protecting the working parts of a heavily loaded conveyer by an arrangement such that these parts are permitted to operate in oil Without substantial loss of oil.

More specifically, it is an object of the invention to provide means whereby the bearing surfaces of a conveyer moving in an associated conveyer guideway or track serve as means for the propulsion and circulation of lubricant through a lubricating system communicating at spaced points with such track to the end that the .con- Veyer is actually moving at all times in a body of oil which, by reason of the interaction of the conveyer and the track, is circulated upon a closedpath without escape of substantial quantitles of oil from the apparatus.

Another object of the invention is to provide a novel and improved conveyer design in which a conveyer and its guide or track have a novel construction of coasting bearing parts, not only for the support of the conveyer from the guide or track and for the propulsion of oil in a closed circuit including; such track, but also for thesubstantial exclusion of foreign matter from the Cir- .culating oil.

,In the drawing:

-,:Fig. 1 is a View in vertical section through a piece of wood-working eq ipm nt illus rat n in side elevation the application of my invention to a conveyer system forming a part of such section. Fig. 2 is an enlarged detail view showing portions of the conveyer in longitudinal section. IFig. 3 is a detail taken in section on line ;3-.-3 of Fig. 2.

. Fig. 4 is a detail taken in section on line 4-4 of Fig. 2.

Fig. 5 is a view in perspective illust-ratinga pair of contiguous conveyer links made in accordance with my invention.

Like parts are identified by .the same reference characters throughout the several views.

The invention, while illustrated in connection with a wood-working machine, is by no means limited to this use. The machine comprises no part of the invention. As shown, there is a ma: chine base at 5 and a saw at I which exemplihes a tool past which work is adapted to be propelled by the conveyer.

Extensibly adjustable bearing heads 8 project from the machine frame to carry sprockets at 9 over which operate the conveyers generically Fig. 2, the opening Shehoygan Falls, Wis., a cordesignated by reference character Ill. The sprockets vare special only in that their peripheral contours are adapted to handle the links of the conveyer as hereinafter to be described. The driving connections to the sprockets, comprising no part of the present invention, are not illustrated. The conveyer has work propelling lugs at 11 connected at suitable intervals to certain of its links.

The frame of the machine provides at 15a bed upon which is bolted the trough-shaped con.- veyer guide l6 having at H a bearing surface which, as illustrated, is concave, ,althoughthis is not necessarily (required. For reenforcement, the side plates 18 may be used, if desired, to lap the trough-shaped bearing member i6 and a portion of the bedl5.

The conveyer, as exemplified in the device illustrated, comprises a chain having links 20 and 2!. Links 2| have side plates 22 extended at both vends beyond an interveni g block 23 having a bearing surface 24 which is complementary to the bearing surface 11 of the guide trough 16. The .ears formed by the projecting ends of the side plates 22 receive pintles at 25 whereby the links 2| are connected to the links :20.

Links 20 comprise blocks 26 likewise provided at 21 with bearing surfaces complementary to bearing surface I! of the guide trough Hi, However, the blocks 26 of links 20 are extended to receive the pintles 25 and thus are pivotally connected with links 2i. It will be understood that the two different-types of links aroused in alter! nation in the prod ct, T pmpel -ng g M L maybemounted on-either or both.

. T u eaehlink comp ises a b ock. ctly tim ported b it own beari g s rfa e from t e gu de trough and so closely fitted thereto as to 011- stitute a partition across the trough. The side plates 22 of links 2| may, if desired, rest upon the side members l8 ofthe guideway.

At least at two points along its length, the guide trough 16 has openings through its botfrom ne such open ng .is p ovide t 30 end is elongated to serve as a manifold to receive oil which may be dropped by gravity into the open-.- ing .30 while one of the spaces 32 between the bloek'pertion 2. and 2510f suc e s ve links 2! and 2B is passing thereover, From themani-fold op n n 3: a lubri ant ci cu at ng tunerth form of duct 33 leads in a direction opposite to the direction of conveyer movement to the distributing manifold 34 from which one or more openings 35 lead back to the trough, as shown in 35 at the right communicating With the inter-link space 32 which is passing thereover in the movement of the conveyer chain to the right, as shown by the arrow. A filling reservoir 33 (Fig. 3) preferably communicates with some portion of the circulating system such, for example, as the manifold opening 34 and is adapted to hold lubricant at a level such as to tend to keep the level of lubricant in the circulatory system above the bottom of the conveyer, guide trough l5.

As the conveyer moves, bringing successive inter-link spaces 32 above the manifold 34, lubricant flows by gravity from the manifold through the openings 35 into the conveyer trough to enter such spaces. The lubricant entering the spaces is withdrawn by conveyer movement from further communication with the. manifold and is propelled along the trough by the block 23 or 26 which, as the case may be, immediately-follows the oil-filled space 32.

When the oil-filled space moves into registry with the collecting manifold 30, the head of oil in said space, coupled with the movement of the conveyer, will create a suificient pressure in manifold opening 30 to move from manifold opening 30 through duct 33 to the manifold 34 a portion ofthe oil of the system. Since fresh supplies of oil are constantly being delivered above manifold 30 by the continued movement of the conveyer, the circulation of oil through the system is substantially continuous. The oil level in the trough should be at such a height above the bottom of the trough that all of the oil cannot be displaced from the trough and accumulated in the manifold 30 as the conveyer moves thereover.

It will be observed that the portion of the trough between the collecting manifold 30 and the distributing manifold 34 constitutes a part of a substantially closed system for'lubricant, the

trough being substantially completely covered at all times by the conveyer, the design of which is such as to leave substantially no openings through which foreign matter can reach the trough. Any foreign matter which does reach the trough tends to remain in the manifold 30 and manifold 34 since the rate of circulation is relatively slow and the currents in the system are not adequate'to lift or propel foreign matter. Accordingly, no oil filter is required for the device as herein used.

Iclaim:

l. A self-lubricating conveyer system compris ing the combination with a trough-like conveyer guide and a conveyer having lubricant propelling bearing means fitted to said guide, of a lubricant return duct leading from a portion of said guide advanced in the direction of conveyer movement back to a preceding portion of said guide.

2. A self-lubricating conveyer system comprising means providing a circulatory part for lubricant including an open channel constituting a conveyer guide and a conveyer including spaced bearing portions fitted to said channel to receive support therefrom and to propel lubricant therein.

3. The device of claim 2 in which the conveyer substantially covers said channel to exclude foreign matter therefrom.

4. The combination with a channeled conveyer guide provided with lubricant feed means and at a more advanced point with lubricant receiving means, of duct means connecting the receiving means with the feeding means, and a conveyer having a series of bearing blocks respectively fitted to said guide and spaced from each other for movement along said guide while providing spaces for the reception of lubricant to be propelled along said guide.

5. The device of claim 4 in which the conveyer comprises a series of links, certain of which comprise blocks extending into said guide and having bearing surfaces corresponding in cross section to the cross section of the guide.

6. The device of claim 4 in which the conveyer comprises links and pivotal connections, each link having a central block with a bottom bearing surface corresponding in cross section contour to the cross section contour of the guide, the bearing portions of the respective blocks of successive links being spaced from each other longitudinally of the conveyer, and certain of the links being provided with said members overlapping the top of the guide and providing for pivotal connection between successive links.

7. In a device of the character described, a conveyer guide member of channeled form having a concave trough provided at longitudinally spaced points with oil-receiving and oil-delivering openings, duct means providing circulatory communication between said openngs, a succession of bearing blocks having convexly formed lower bearing surfaces fitted to the concave trough of said guide means, alternate blocks of the conveyer being provided with side plates extended to constitute ears, pintles connecting the ears at the respective ends of said plates with the contiguous intermediate blocks of the conveyer, successive blocks being mutually spaced longitudinally of the conveyer to receive lubricant between them, said blocks constituting dams across the guide for the propulsion of lubricant along the guide for recirculation through said duct means.

8. The combination with an endless conveyer provided with a straight-line support for its working side, said support providing a trough, bearing blocks carried by the conveyer for travel in said trough, means for feeding lubricant into the trough, and means for utilizing the said bearing blocks to recirculate the lubricant from the end portion where the blocks leave the trough to the end portion where the blocks enter the trough.

9. Lubricating means for endless conveyers, comprising a support for the working side of such a conveyer, said support having a longitudinally extending trough, a conveyer mounted to travel along said support and provided with spaced bearing blocks adapted to travel longitudinally in the trough, means for feeding lubricant into the trough, and lubricant storage chambers associated with the respective end portions of the trough in communication therewith, said support being provided with a return duct connecting said chambers, and the bearing blocks of said conveyer being adapted to circulate lubricant along the bottom of the trough and through the chambers and return duct.

CURT G. JOA.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2656420 *Jun 23, 1945Oct 20, 1953Isberg Reuben ARecorder head
US2766979 *Jan 4, 1954Oct 16, 1956Joy Mfg CoCutter or disintegrating chain with dirt scraping means
US2981307 *Jun 24, 1957Apr 25, 1961Malarkey Jr NeilPress machine
US3051264 *Oct 14, 1960Aug 28, 1962Batchelor Robert LLubrication system and method for chain conveyor
US4627529 *Apr 22, 1985Dec 9, 1986C. & T. Tarlton, Inc.Spiral conveyor
US4926971 *May 4, 1984May 22, 1990Vt-Verpackungstechnik ZurichArrangement for lubricating the chain guide in a drag chain conveyor for loose articles
US4934510 *Apr 22, 1985Jun 19, 1990Thomassen & Drijver-Verblifa N.V.Device for spacing bottles
US7303708Apr 8, 2005Dec 4, 2007Curt G. Joa, Inc.Super absorbent distribution system design for homogeneous distribution throughout an absorbent core
US7374627Apr 7, 2005May 20, 2008Curt G. Joa, Inc.Method of producing an ultrasonically bonded lap seam
US7398870Oct 5, 2005Jul 15, 2008Curt G. Joa, IncArticle transfer and placement apparatus
US7452436Mar 9, 2006Nov 18, 2008Curt G. Joa, Inc.Transverse tape application method and apparatus
US7533709May 31, 2005May 19, 2009Curt G. Joa, Inc.High speed vacuum porting
US7537215Apr 22, 2005May 26, 2009Curt G. Joa, Inc.Method and apparatus for securing stretchable film using vacuum
US7618513May 31, 2005Nov 17, 2009Curt G. Joa, Inc.Web stabilization on a slip and cut applicator
US7638014Mar 18, 2005Dec 29, 2009Curt G. Joa, Inc.Method of producing a pants-type diaper
US7640962Apr 20, 2005Jan 5, 2010Curt G. Joa, Inc.Multiple tape application method and apparatus
US7703599Apr 12, 2005Apr 27, 2010Curt G. Joa, Inc.Method and apparatus for reversing direction of an article
US7708849Jan 4, 2006May 4, 2010Curt G. Joa, Inc.Apparatus and method for cutting elastic strands between layers of carrier webs
US7770712Feb 17, 2006Aug 10, 2010Curt G. Joa, Inc.Article transfer and placement apparatus with active puck
US7780052May 18, 2006Aug 24, 2010Curt G. Joa, Inc.Trim removal system
US7811403May 7, 2007Oct 12, 2010Curt G. Joa, Inc.Transverse tab application method and apparatus
US7861756May 8, 2007Jan 4, 2011Curt G. Joa, Inc.Staggered cutting knife
US7909956Aug 13, 2009Mar 22, 2011Curt G. Joa, Inc.Method of producing a pants-type diaper
US7975584Feb 21, 2008Jul 12, 2011Curt G. Joa, Inc.Single transfer insert placement method and apparatus
US8007484Apr 1, 2005Aug 30, 2011Curt G. Joa, Inc.Pants type product and method of making the same
US8016972May 8, 2008Sep 13, 2011Curt G. Joa, Inc.Methods and apparatus for application of nested zero waste ear to traveling web
US8172977Apr 5, 2010May 8, 2012Curt G. Joa, Inc.Methods and apparatus for application of nested zero waste ear to traveling web
US8182624Mar 11, 2009May 22, 2012Curt G. Joa, Inc.Registered stretch laminate and methods for forming a registered stretch laminate
US8293056Aug 24, 2010Oct 23, 2012Curt G. Joa, Inc.Trim removal system
US8398793Jul 20, 2007Mar 19, 2013Curt G. Joa, Inc.Apparatus and method for minimizing waste and improving quality and production in web processing operations
US8417374Apr 26, 2010Apr 9, 2013Curt G. Joa, Inc.Method and apparatus for changing speed or direction of an article
US8460495Dec 27, 2010Jun 11, 2013Curt G. Joa, Inc.Method for producing absorbent article with stretch film side panel and application of intermittent discrete components of an absorbent article
US8557077Mar 21, 2011Oct 15, 2013Curt G. Joa, Inc.Method of producing a pants-type diaper
US8651266 *Nov 16, 2011Feb 18, 2014Senju Metal Industry Co., Ltd.Oil supply device for conveyance device
US8656817Mar 7, 2012Feb 25, 2014Curt G. JoaMulti-profile die cutting assembly
US8663411Jun 6, 2011Mar 4, 2014Curt G. Joa, Inc.Apparatus and method for forming a pant-type diaper with refastenable side seams
US8673098Oct 25, 2010Mar 18, 2014Curt G. Joa, Inc.Method and apparatus for stretching segmented stretchable film and application of the segmented film to a moving web
US8794115Jul 7, 2011Aug 5, 2014Curt G. Joa, Inc.Single transfer insert placement method and apparatus
US8820380Mar 29, 2012Sep 2, 2014Curt G. Joa, Inc.Differential speed shafted machines and uses therefor, including discontinuous and continuous side by side bonding
US9089453Jun 11, 2013Jul 28, 2015Curt G. Joa, Inc.Method for producing absorbent article with stretch film side panel and application of intermittent discrete components of an absorbent article
EP1088775A2 *Sep 7, 2000Apr 4, 2001SBR MASCHINEN-HANDELSGESELLSCHAFT MBH & CO. KGConveyor chain in particular for machines for machining edges
WO2012067154A1 *Nov 16, 2011May 24, 2012Senju Metal Industry Co., Ltd.Oil supply device for conveyance device
Classifications
U.S. Classification184/15.1, 198/500
International ClassificationB65G45/00, B65G45/08, F16H57/05
Cooperative ClassificationB65G45/08, F16H57/05
European ClassificationF16H57/05, B65G45/08