US1095233A - Woodworking-machine. - Google Patents

Description

1). ROSE. WOODWOBKING MACHINE. Y APPLIOATION FILED JULY 15, 1918.

Patented May 5, 1914.

6 SHBBTB-BHBET 1.

WITNESSES INVENTOR 2111-- 2?;

wk Attorney D. M. ROSE.

WOODWORKlNG MACHINE. rruorrmn rum) JULY 15, 1912.

Patented May 5, 1914.

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1. 2/ Jag/477 71141 IE, I

D. M. ROSE.

' WOODWORKING MACHINE.

APPLIOATION FILED JULY 15, 1912.

Patented May 5, 1914 6 SHEETS-SHEET 3.

hrgh 1 UEUUEUE UF A ltoniey WITNESSES Du Mu WOODWOBKING MACHINE.

APPLIOATIQO] FILED 111L116, 1912.

1,095,233, "Patented May 5, 1914.

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D. M. ROSE.

WOODWORKING MACHINE. APPLICATION FILED JULY 16, 1912.

Patented May 5, 1914.

5 sums-sun's.

Q Y IQ IIIIIWQ 1N VEN TOR DANIEL m. nos n, or xnoxvrtmi, TENNESSEE. v

WOODWORKING-MAGHINE.

To all whom it may concern.-

Be it known that I, DANIEL M. Rose, of Knoxville, Tennessee, have invented-a new and useful Improvement in WO0dworking-' Machines, which invention is fully set forth in the following specification.

. This invention relates to wood working machines, and particularly to machines of that general class designed for end match-v ing material suchas strips for flooring, ceilings and the like, and has among its prin cipal objects to provide an end matching machine which will seize and automatically position strips of different lengths on the carrier mechanismand successively advance them past the trimming and matchin cutters whereby one end of the materlal is provided with a tongue or groove and is then automatically conveyed to another similar machine where thelopposit-e end of the material is matched.

A further object is to provide a matching machine which is adapted to operate on boards face side up and cut longstrips apart for sorting or grading and match the resulting short pieces together with the other long strips in the same machine.

A further object is to provide a traveling support which will cooperate with the feed devices of the tongue. and "groove machines to advance long strips in a direction at right angles to the lengtprovide a conveyer for transporting short .striprin the direction of their ength, whereby both long and short strips after-leavi one machine are automatically delivere with their unmatched ends to the second machine into which they are fed by an operator, and undergo cutting, trimming and-matching in a manner similar to their treatment in the first machine. The operator is thus enabled to place a piece of material in the machine of any length and then turn his attention to the next'piece. I

A further object of the invention is to provide improved means for holding and passing the pieces through the matching machines, said means also providing for warped pieces whereby the ends which are being matched may be cut square with the edges and parallel to the face of the piece at its immediate end and without interfer ence with other pieces.

Further objectsare to generally lmprove Specification of Letters Patent. Application filed m 15', 1912. Serial No. 709,464.

facilitated and materially improved witho it increasing the v The invention in its general features comof the strips and to.

the detailed structure of machines of this P atented it'l class whereb' cutting, sorting and endf matching an handling may be materially the quality of work done number of operators.

prises three sections, a sorting, and grooving section, a duplex conveyer section, and.

a sorting, and tonguiirg section, all so arringed that an operator mayinsert a strip 0 and 'groovmg machine whereupon the piece is automatically gripped and brought into correct position to be cutacross square with the length at its immediate end by the trimming' 'saw.. Cut olf ends are SOIiLBw rejected. Short pieces suitable for' their outer ends supported and carried oi1\a port. On leaving the end ooving machine boring of any length into the sortin ring' are fed by the operator tothegroovin machine. Long pieces fed tothe machine have I 7E 1 conveyer. Short pieces g'othrough the maf-f' chine without the aid of such traveling suppieces are taken lengthwise by a conveyer'to 1 the sorting and end tonguing machine. The.

second operator stationed at'this machine feeds the pieces to the tonguingmachine which operates similarly tothe first machine except the pieces are trimmed at the opposite end and receive a tongue instead of a groove. Short pieces out 0E and sorted. at

the tonguing' machine may be returned to I the first operator bya conveyer-or b hand and these receive a groove and pass t rough his machine to receive a tongue. 7

VVit-h this general description of the combination and arrangement of parts of my invention, I will now describe its detail improvements and in order that the invention may be more readily understood reference is had to the accompanying drawings which illustrate, by way'of example, one embodiment of the invention.

to the second operator who places them in Figure 1 is a perspective view showing an i end matching machine embodying certain of my improvements. Fig. 2 is a side 'elevational view of thesame machine with parts broken away to show interior construction. Fig. '3"isa longitudinal-central sectional view showing the adjustable work support Fig. 8 is a side elevational view of one of the'chain carriers and loading tables. Fig. 9 is a plan view of a portion ofthe carrier,

and loading table. Figs. 10 and 11 are detail views, ofparts of the. loading ltable. Figs. 12 and'13are details pertaining to the gage device. Fig. 14 isa diagrammatic plan view of the system of tongue and groove machines and conveyers. connecting U the same. Fig. 15 is-a detail view ofa pair carriers for supporting the free .ends of longof matching tools. Fig, 16 is a detail view and Fig. 17 is a view partly in section and partly in elevation showing means for ad justing'the' matching tools. 18 is an elevational view with certain parts removed to show the driving gear for the feeddevice. Referring tothe drawings, Fig. 14 shows diagrammatically the general arrangement and construction of the devicesfor carry ing out the operations ofgrooving and tonguing, in which A'designates the sorting and end grooving machine; B. designates the sorting and end tonguingmachine; C, the

pieces which pass through machines A and B, and D is a carrier for short pieces which are to transported from the end grooving machine to the end tonguing machine in the direction of their lengths. p

a In describing the means for end matching the boards, the descri tion willbe confined more particularly to t e first machine which in the illustration isa grooving machine, The same description will also apply to the tonguing machine except as hereinafter pointed out. p I v Referringto Fig. 1, the sorting and end grooving machine is provided with a base 1 rising from which is a main standard 2 which supports the driving mechanism and end matching tools. From the standard 2 extend two sections 3 and 4,;the forward part of. the latter resting on a column 5. The upper section 3 supports the upper adjustable plate 6 secu'redfto the'lower end of a member 7 Fig. 2, adapted to be raised and lowered for difi'erent thicknesses by a'hand: operated screw. 8 engaging the top part of the member 7 Set screws 9 arev arranged to lock the plate in the desired position.

The forward end of the upper plate s pro.- vided with an upturnednose 1O for the pur pose of enabling the ends of the pieces or boards to more readily pass under it. Below the upper plate 6 are located the work gaging and feeding devices. In connection they grip and position the end of the board on the support in proper relation for'the cutting and matching tools while the feeding device advances-the board under the upper plate6- and past the tools.

The feed device, illustrated in detail in F1gs. 3 and 4, comprises an endless chain 11, running over a chain driving pulley 12 and over a tension pulley 13 which is provided with a taking-up device such as a threaded rod'l lworking in a stationary lug 15, Fig. 2. Each link of the chain is made of a flat sol-id piece as'indicated in Fig. 4. Disposed at the sides and top of each link are secured detachable; lugs 16 which are adapted to come intoengagement with the rear edge of .theboa'rd and feed it forward sidewise. The

upper branch of'the chain is kept in a horiz'ontal position by means of bars 17 extending between the pulleys 12 and 13, their ends secured to the frame of the machine. On these bars'17 the links of the chain slide and by them are kept from sagging. Sidewisc movement of the chain is prevented by lugs 1'8jlocated on. the central underpart of the links and between the bars 17. While the boards are advanced bythe lugs 16 they are supported out of contact with the links of thechain by the upturned ribbed end mem bers 19 of pressure bars 20. The receiving edge of each bar is slightly rounded to facilitate passage of the board from one bar to the next. This is more clearly shown in Fig. 5 at 19. The ribs on the ends of members 19 act to indent and to guide the board over the pressurefbans 20 and keep it to its proper path as it is advanced by the chain lugs 16. The pressure bars 20 are provided with yielding supports, such as springs 21, which are placed near the opposite ends of each bar and so positioned relatively to the sides of the bars that each spring acts to support parts of two bars. The springs under the endsof the bars on the cutter side are made stronger than those on the side away from the cutters to better hold the work to receive the cut. This arrangement is clearly shown in Fig. '7 in which is also shown, at the left of the figure, small springs '22 which are placed under each of the end bars of the series to-support the outer edges of these bars. The springs under each pressure bar rest in depressions provided in a vertically adjustable plate or member 23. For this adjustment, plate 23 is provided with depend ing lugs 24, Figs. 6 and 16, forming bearings for a right and left handed screw 25 on which is mounted a worm gear 26. Engaging the opposite threaded endsof screw 25 are slidable wedge members 27 which are adapted to move to a limited extent on stationarydoubly inclined surfaces 28. The worm gear 26 is operated through a ear 32 by ahand wheel 29 mounted on a shalt 30 which is supported in bearings 31 hanging from plate 23. Mounted on shaft 30. is a gear 32 meshingwith worm gear 26. Rotatheir construction is the same.

pair of levers 33 shaft 30, and gears32 and 26 whereby the wedges 27 move up or down the "inclined planes 28* and thereby raise or lower the plate 23 and the pressure bars 20 for supporting the work. To'provide passageway for chain 11 and lugs 16; the upper plate 6- is recessed or grooved at 33. The'bars 20' are preferably provided on their undersides with retaining shoulders 20 whichengage' e corresponding shoulders on plate 23.- T

springs are thus locked in their sockets and the bars are retained in osition.

The gage device which coiiperates'with the top plate the first pressure bar and the lugs on" the chain to'position' the boards for entrance-- 11- the ressure bars,- comprises a Eeyed on a-shaft 34 having bearings in the body of extension 4. The ends of the levers 33 project abovethe tops of the arms ,19 of the bars 20 as shown in F ig. 2. Levers 33 are normally held in an upright and yielding position by a. spr'in 35 on shaft 34, Fig. 12, and spring-press in relation tothe first pressure liar and. the upper plate so that the nose 10of the plate and the levers codp'erate to position the work at right angles to the direction of feed under plate 6 before passing into the bars and before rotation of the gage levers. In order.

that the free ends ofboards having considerable length may be supported whilethe' opposite end is passing through the matching machine and atthe same time-offer no drag on the board to shift its position relative to the feeding device the shaft 34 is extended beyond the side of the machine and operates a loading'table 37 for temporarily supporting and then depositing the free end of the board onto a'lu'gless chain 38. Referring to Figs. 8 to 1-1, the outer end of the shaft" 34 is supported in the top horizontal member of a. frame 39 which is arranged. parallel with the machine'an'd at a distance therefrom suitable for the length of boards. Several-of these frames ma be provided two of which are shown in *ig. 14. While several loading tables 37 are also shown the description of one will suffice for all since Loosely mounted near-the end ofshaft 34 is a lever 40provid'ed with aweighted arm 41-. The upper endof lever 40 pivotally supports one end of table 37, the other end of the t-able being pivot-ally supported on a lever 42 having a weighted and 41 and mounted on a stub-shaft 43 and parallel with .the first lever. Normally the table takes a resting posit-ion above the chain carrier 38. When the levers are tilted the table travels with the feed and lowers while remaining in a horizontal position. This tilting act-ion is effected by shaft 34 acting through a pin 44 "projecting from the shaft and entering a slot 46 formed in the sid'e-ofjthvhub of lever 40E The table is yieldingly locked in anupright position by means ofa spring catch 46 which engages a shoulderedcam 47 'providbd witha weig'hted arm 48 resting in its lowest position-in a stirrup 49"secured to theframe 39'. :To adjusttheposition of the lever 48 an adjusting'screw 50 is provided in the'foot of the; stirrup When, dne end of a; board of sufficient length enters the machine, itsfree end will rest on the loading table '37. The advance of the board ove'rthe gagelugs 33 by chain, 1], rocks shaft 34. The pin 44' presscson thejower shoulder of slot 45 and tilts the lovers 4O and'42 and, table 37. The endof the board is-thus first carried with the feed and then deposited on the'endles's chain 38 which travels at the same rate as the feed chain 11in the match 'ing' machine. The spring catch 46 is releasedfrom the shoulder of the cam 47 during this operation and the weighted arm 48 falls back to rest in its stirrup 49; When the board ismoved by chain 38iawayfrom plungers 36. The gage levers arearrangedunder action of the weightedarms 41 and spring 35 on shaft 34 has already returned to-its original position and the-catch snaps into locking position to hold the table upright for the receptionof-the next board.

For the purpose oftrimming the ends of the board or for cutting the boards into grades for sorting, a saw 51 is provided which is driven from ash-aft' 52 having bearings '53, 54 mounted on a. plate 55: on the upright part ofanextending arm on the front of the frame of the machine. By means of a hand wheel 56, hearing 54 may ibe longitudinally adjusted and with it the shaft 52 for the purpose of properly positioning the saw 51. Power to drive the shaft of the saw is appliedthrough a belt 57 and pulley 58. The cut-ting or lower edge of the saw is arranged to move in the same direction asthe' feed chain 11, thereby making a f finishing cut in the face of the board, and also enabling the material with its finished surface up to .be fed to the machine under the inspection of the operator who can thus inspect and grade the material for cutting and sorting.

The groove I made by'a saw 59 mounted on'a cutter head 60, Fig; 17, mounted on a vertical shaft 61 supportedin an adjustable bearing 62 which is adjusted by means of a screw 63 operated by a hand wheel 64 through bevel gears 65', 66. The cutter head 60 is driven by the belt driven pulley 67 through bevel-gears 68', 69. The lower part of the cutter head shaft is splined to the hubv of gear 69 and is slidable in the end of the board thereon- The depth of the groove made by head 60 and its adjusting and driving means just describedjin connection with out off saw A hand wheel 71 having a threaded spindle engages a lug on the late, and enables this ad ustment to be ma e.

Power, to drive-the machine isapplied to power. shaft-72 which is provided with the shaf .72 M -p y aroundi-which and are 51 lid. thence'arou nd i er..78 to The. machine is provided with an automatic-"take upoperated by aweight.

79 suspended by cable over a sheave, 80. ,As

this device isno part of the present invention,' no furtherv reference to it is deemed necessary. The feed shaft 76 which drives feed chain 11 takes itspower from shaft 72 through belt pulleys 81, 82 and a train of gears '83, '84, 85, 86, shaft 87 and gears 88 and 89; Fig. 18. Belt pulley 82 carries agear 83 both. looseon shaft 87. Gear 85 is fastto gear 84- and both are loose on their shafts. Gears 86, 88 and 89 are fast on their shafts. =At the delivery end. of the groovi'ng machine-is a rail 90 extending beyond v themachine and opposite the end of a belt 91 running over pulleys 92, 93, the former of desired. 7

Power to drive the belt'is taken from the drive shaft of the tonguing machine and is transmitted to the belt pulley 93 "through shaft 94: by suitable gear transmission 95. The top surface of the belt runs below the top of the lugless chains 88 and forms the bottomof a trough 79 into which short pieces fall as delivered from the grooving machine.

The sorting and tonguing machine B has been diagrammatically illustrated in Fig. 14 and in the construction of its gage and feed which-is adjustable to tighten the belt when device 'is the same as that described in re spectto'the grooving machine. Instead of having a groove cutter, it is provided with a pair of tonguing cutters as diagrammatically shown in Fig. 15. The cutting blades or saws96 arepreferably inclined to each other whereby a reentering shoulder and a tapering tongue are formed to insure a 55' 1 machine does not" produce a finishing cut and therefore for convenience is rotated with its top moving with the work." The free ends of the long boards are supported initially on loading tables at the left-of the without support-in tonguing machine and are deposited on a lugless chain carrier moving with the feed chain inthe machine as heretofore described in connection withv the grooving machine.

The machine as thus far described operates as follows: An 0 erator stands facing the receivin end of t e first machine or, in

thej illustratron, the grooving machine and with his right hand takes, for example, a long'pieceof flooring face up and places -tliei1ef thandfend of the iece on the front extensions 4 of. the mac ine, resting the righthand end on the loading table 37. In

' the meantime; he inspects and locates defects on the face side of the iece or board and passes'the left-hand portion just beyond the cutoff saw hl. The board is shoved side- Wise toward the yielding gage by the operator. The feed chain as it advances brings 11 from the rear two lugs 16 against the rear e ge of the board and forces the board against the gage levers and against the yielding pressure bars 20 and plate 6, thereby automatically squaring the piece into position for the cutting tools. At this moment the board is moved under the upper plate by the lugs 16 ofthe chain 11 and depresses gage levers 33 over whichthe board rides and passes .onto and depresses the first spring-pressed bar 20 having its rounded edge toward the advancing edge of the board. The ridges on members 19 penetrate into the underside of the piece and assist in guiding and keeping the piece square as it 'the next spring has been depressed to receive this advancing edge because the meeting edges of two bars rest on the same springs.' The boards thus readily pass over the pressure bars while the latter press and hold the board against the upper plate and also guide the boards by their ridgeswhile undergoing cutting and grooving. The chain merely advances the boards by its lugs them, thereby avoiding the possibility of c ips, dust, etc., from collecting between the boa ds and their supports and thereby throwmg out of adjustmentthe cutters, nor does any dirt accumulate between the chain and its supports to in any way affect the adjustments of the cutcapabllity of handling different grades as to length lies one of the many advantages of my machine. The depression; of the gage lugs 33 rocks shaft 34 which carrieswith the feed, then lowers the. loading table 37 and thereby deposits the right hand end of the From the explanation: previously givenof v the loader, the description of its operation will be readily understood and its description need not be repeated. When the board reaches the delivery end of the grooving machine the left-hand end is supported on the rail 90 face up and the right-hand end slides on the end of the eonveyer trough. The

right-hand end of the long board is now in' position to be grasped by the left-hand ofthe operator at the second or tonguingmachine. This operator now ll pects the right-hand portion of the piece, face side up, andintroduces it into his machine in the same mannor as did the first operator. Pieces cut off by the trimming saw, however, are either cast aside or passed back to the first operator who passes them thi ugh; the groovin ma chine with the. other short pieces. ieces not longenough to be supnortedbythe 1 end of the trough on leaving the grooving machine are pushed onto't-he belt conveyor. The right-hand end of the piece drops first onto the belt which then pulls the board oil"- the& rail 90 face up and carries them to the second or tonguing machine. The feed chain 11 is set into movement by means-of a power controlling lever 98, one end of which is adapted to shift a pivotally mounted pulley 39 against a belt 100 running over pulley 81 on drive shafit 72 and a pulley 82, Fig. 18, thereby tightening the belt and causing the rotation of the: drive shaft 72 to be imparted to pulley 82- and thence through the? power transmitting gears 83 to 89 above described to the chain drive shaft 76.

While the machines for groevin and tonguing may be placedapart at any esired distance. it is convenient to so locate't-hem that twelve foot pieces leaving the first ma chine arein'line-with the. left edge of the secondmachineand the; distance between trimming saws about 13 feet. Stuff shorter than this falls into the conveyor trough while pieces longer than this travel sidewise and are supported on rail 90 and the end of each sideof the frame supporting the lug-- less-carrier'chalin as clearly appears in Fig. 9'

each section righting itself assoon as cleared. The levers 33 preferably have their ends out against. the lugs.

support as away; toolear the. tongue on the board and permit the-edge of the board to square itself The sectional pressure bars may and preferably do rest on stronger springs at the end next the end of the piece being machined in order that this end of the piece whether the board is warped or not may always lie fiat against. the upper bed plate and insure accurate end-matching.

It will be at once apparent to those skilled in the art that there may be certain changes in therelative arrangement of the parts and in. the mechanical form of the various elements entering into the structure, without departing from the spirit of my invent-ion, and such variations are meant to be included in the claims. Furthermore, while the I mechanism has beenespecially designed for and-described with relation to end matching flooring, itis n t restricted; to such use and may for example, with appropriate modification be used to cut up material; also parts of the mechanism may .be used without necessarily employing other parts shown, for

example, the end matching machine may be where the materials are not too. long.

What is claimed is 1. In an end matching machine,the combinationof. end matchingtools, a yielding sectional support for the material, a gage adapted to yield-to pressure in the direction oi feed, means iior advancing said material against said: yielding gage to position the material on said support, and a pressure plate for holding the materialagainst said the. same. v

2. In an end matching machine, the combination of end matching tools, a yielding sectional support for supporting one end oi the material and a moving support for the opposite end of the material, a rock shaft yieldinszlv .held againstrotation and provided. at one end .withgage, members and at theother end with a tilting support,

means for advancing the material against the i used without. the loading tables, particularly the material .is advanced over gage members to position one. end .of the materialv on-the sectional support and to rock the: tilting support which deposits-the other end-0f the material on the mov' support, and a pressure plate for holding-the matenialaga nst the sectional support as the,

material is adwancedpast the said tools.

' 3. Inan'end; matching machine, the com.- bination'otmeans for advancing material throunhthemachine, a support for one end.

ofathe material traveling with the advancing means, a gage in operative relation with the adv-aiming means' adapted to position the "material in the machine, and a tilting support operated by said gage and adapted. to

deposit one end of the material on said travslingsupport. 4. In an end matching machine, the combination of an upper plate, and a plurality of spring pressed bars below the same arranged transversely of the feed of the machine, each bar having upturned ends for supporting the material, means for vertically adjusting said bars, and an endless chain provided with lugs and running between said upturned supports for advancing the material resting on said supports.

5. In an end matching machine, the combination of an upper plate and a plurality of upwardly spring-pressed bars below said plate. arranged transversely of the feed of the machine, each bar having upturned ends for supporting material to be matched and rovided with guiding ribs running in the direction of feed adapted to enter the under surface of the material and direct its course .through the machine and means advancing the material over the ribs. 7

6. In an end matching machine, the combination of an upper plate and a plurality of pressure bars below said plate for supporting the work and arranged at right angles to the direction of feed, springs on each of which parts of two bars rest and other springs on each of which parts of one bar rests, and means for advancing the work through the machine.

7. In an end matchin machine, the combination of an upper pIate and a plurality of pressure bars below said plate for supporting the work and arranged at right angles to the feed, springs under the ends of said bars, those under the bars supporting the ends of the boards to be matched having a greater resiliency than those at the opposite ends of the bars, and means for advancing the work through the machine.

8. In an end matching machine, the combination of a support on which one end of the work is adapted to slide, an endless chain provided with lugs for sliding said work on its support, a rock shaft having at one end a gage cooperating with said lugs for positioning the work, an endless chain moving with said-first named chain for supporting the free end of the work, and a loading table normally raised above the supporting chain and operated by said gage through said shaft to lower the work on said chain.

9. In a machine for matching the ends of boards, means for advancing one end of the board through the machine, an endless carrier for supporting the free end of the board, a loading table having its ends pivotally mounted. on lever arms normally held in position to keep the table and the free end of the board above said carrier, and means operated by the advancing means through said board to lower said table and deposit the free end of the board on said carrier.

10. A device for supporting the free end of aboard while the opposite end passes through a machining operation, said device consisting of an endless carrier, atable, a lever pivoted to said table, means normally holding said table in raised position, and a power shaft having a lost motion engagement with said lever to depress the table and lower the free end of the board onto the carrier.

11. A device for supporting the free end of a board while the opposltc end passes through a machining operation, said device consisting of an endless carrier, a table, a lever pivoted to said table, means normally holding said table in raised position, a power shaft having a lost motion engagement with said lever to depress the table and lower the free end of the board onto the carrier, and a yielding means for locking said table in raised position.

12. In combination, an upper holding down bar or plate and a lower bed or work support arranged to receive and guide the work between it and the said upper plate and comprising two or more bars spaced transversely of the travel of the work,

springs supporting said bars, the springs for one bar nearer the operating cutter being stronger than those for the more remote bar or bars.

13. In combination, an upper holding down bar'or plate and a lower bed or work support arranged to receive and guide the work between it and the said upper plate comprising a plurality of spring-pressed bars spaced transversely of the travel of the work for holding work against said plate and having upturned work receiving and supporting ends provided with ridges arranged in the direction of feed of the work.

14. In combination, an upper plate having an end with an upturned under edge, a pair of gage lugs below said end adapted to yield in the direction of feed, and a support receiving work passing over said lugs.

15. In combination, an upper holding down bar or plate and a lower bed or work support arranged to receive and guide the work between it and the said upper plate comprising a plurality of upwardly springpressed bars spaced transversely of the travel of the work and having upturned work receiving ends provided with riboed faces and edges cut away on one side for the purpose described.

16. In combination, an upper plate, a pair of yieldingly mounted gage lugs below said plate each lug having a cut-away portion on the work receiving side to accommodate the contour of the work.

17. Incombination, an upper plate, a plurality of spring-pressed bars below said plate supporting the work, means advancing the work over said bars, and means for vertically adjusting said bars.

' 18. In coi'nbination, an upper plate, a p1urality of bars yieldingly mounted and having upturned ends to support the work under said plate, an endless chain guided between said ends and provided with lugs to advance the Work over said-bars.

19. In conibiimtion, an upper plate, a plurality of bars yieldingly mounted and having upturned ends for supporting work under said plate, an endless chain guided between said ends for advancing the work over said bars, and members for supporting the chain and for guiding the up and down play of said bars.

20. In combination, an endless chain and a table for supporting one end of a board above said chain and provided With means for depressing the same operated by the opposite end of the board.

21. In combination, an endless chain and a table for supportingone end of a board above said chain and provided with means for depressingthe same operated by the opposite end of the board, and means automatically operating to restore said table to its elevated position. l

22. In combination, an upper holdingdown bar or plate and a lower bed or Work support arranged to receive and guide the Work between it and said upper plate, said support comprising a rigid section on which one end of the work is first placed and yie1ding sections on Which the Work slides, an endless chain provided with lugs for sliding said Work on its support, a rock shaft having at one end a gage cooperating with said lugs for positioning the Work, an endless chain moving With said first named chain for supporting the free end of the Work, and a loading table normally raised above the supporting chain and operated by said gage through said shaft to lower the Work on said chain.

In testimony whereof I have signed this specification in the presence of two subscribing Witnesses.

. DANIEL M. ROSE.

Witnesses:

ROY V. MYERS, WILLIAM WHALEY.

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