US1888664A - Pole gaining and boring machine - Google Patents

Description

' L. H. GEDDES ET AL POLE GAINING AND BORING/momma v Nov. 22, 1-932.

Filed March 25, 4 931 5, Sheets-Sheet 1 v- 2 193 L. .H. ED'DES ET AL 1,888 664 POLE GAINING AND BORING MACHINE Filed March 23, 1931 5 Sheets-Sheet 2 "Jag:-

Nov. 22, 1932.

L. H. GEDDES ET AL POLE GAINING AND BORING MACHINE 5 Sheets-Sheet 3 Filed March 23, 1931 Nov. 22, 1932. E E ETAL 1,888,664

PQLE GAINING AND BORING MACHINE Filed March 23, 1931 S'Sheets-Sheet- 4 I. ,1 I .7 7' '4 WEMQ I Nov. 22, 1932.

L. H. GEDDES ET AL POLE GAINING AND BORING MACHINE 5 Sheets-Sheet 5 Filed March 25, 1931 /14' 1J if H I I I I I I g I I L I I I I I Q I I I' I I I I L I I I Patented Nov, 22, 1932 p.. LESL -GEDDE 'AND .wn qfl H- MANSFIELD, R m iw immd s essences This "inyention relates to machinesifor gain}.

' more important of whichmayihe enumerated i mam POLE GAINING AND ZBQRJiQ'G'MACHIgNE n ncationmed-nmhas, 1931.. SeriaINo. 524,472. 1 a

ing and boning, and is particularly concerned wit a e i aining and ein v ea chine especially designed and adapted lfo doing such work on poles ,to 'prep are the r; 011 thelmountingof vcross arms thereon. 7

Role framing, as thiswoi k is called IlQW doneentirely b hand,=and involves a high labor cost, besi es being too slow and giving results not as nnif orm as desired. It is, therefore, the inain' obj ect of our invention to provide a machine of a practical form to do this Work substantially entirely with powen soas tocut down the laboncost .to a Ininimum andfenable a much larger output of Won-kin a shorter time, and also enable doing the workwith absolute uniformity. The 'machine of our invention embodies nnmeizons' features of novelty, among they the following;

The provision of a inain frameioif the machine adapted whenclan pedjdor otherwise suitably secured on the pole tocenter'thefnia-i chine as a Whole with respect to thecap'ped end of th'e pole Wherethe gaining and bor'ing operations are to belperforrjned, and (a p'or-t able unit carrying the boring bit and c'nttei head arranged to be placediindifie ient prede- 'tei'inined positions on the na e to az in a nd bo'rethe pole at predeterminedpointslspaced lengthwise-thereof. l

. (2) The provlslonlof gnides on the frame adjustable thereon toldiflerent positions io slidable reception of thepo r'table, unit 501:

niovementti'ansversely of the pole indifferent positions spaced in a predeter ni ned'mannei' lengthwise of the pole,- whereb'y ,to insinienot only accnratespacing of the gains and holes, but also insure absoliite pa'lfallelismg' V i (3) The provision of averticallyfadjustable slide for the support of thecuttet head on the unit, 'and ja gaugebar onthe lowenend of the "slide and at a {predetermined elevation with respect to the cutter head to engage the sideo'f-the pole'and slide transvei selyftheref offlto gauge th'e dept h jof the gain made the cutter head. 7 The slide'jis preferably ads ji s'table j me n foi aba on Whe l t r a Fol-1n and ge r connection fwith a l on h ram of the uni so tha th "s tin 6 the et e b e b a ended to iq'T kl and e ily ineee hlpo i c of fihlun zm r m yae -th mrts r d iy y lild'inenyediede edit e fbyfth inter: 6 I

W s 1 P081 ;Wit fie a ra ement the q i headw y b u ed indel iidently of a de nhamper dibyih O i gfi' U a 7 mm when t eh mng b is ng us d, the putter he d is i i he p v s on 1 n t e l e iiei o the n rt blee n bfa p @91 1: i r ee eme .y ithithe g uideslon themain frarne ,aindadtest b t LP e g ment, h -bo t ing it w l e tly on t e cen 'l ne i f the pee W eby b u e u fate i a iiniqi the bit for each peering pf a-hole'."

. 'rrh pmis npr memes isle? sepi t p hich th {p le a ba range 119 h zr epp nt dse as is .be vf e. t9; take than We posi i n b nd Wn befo he same "is amps din p 01 o the o lpp tsi andith machine mount do th icappedrendetheleofi fori the gaining andlboring operations. 5 The .;iny'ention embodies these and jot-her. features, all .of which will be betteroundere stood in ithei'cours elof theifol low'ing' detailed description, in i which {reference made I to the accompanying drawings, wherein Figures land QarepIan'and side views of ahnachi-ne made inaccorda'nc'eWithionr invention shown moiinted on a pole infthe courseof thepole framingoperations'j- 95 lines-1 e e a j'l rq e-i ti i iil'i er i planes .t aken on the lines 3+5 "and of fill ou wfh y position a ongside Z95 thepole'.

Rio

Fig. and amounts to an enlargement "of a portion of Figure 1;

1 poles disposed crosswise with'respect there- Fig. 10 is a plan view of the support of Fig.

8 with, certain portions shownin horizontal section, and

Figs. nae-are views in plan and sine as vation of poles in 'a pole yard'showing'how' the supports are arranged to be used.

The-same reference numerals are applied to o corresponding parts throughout the views.

v,Referring for a moment to Figs. 11+13,

we havetshown how the poles'are handled in I ai pole yard wherethe framing is done; It is common practice to have the poles,'shownat"15,supported eight inches to 'a foot off the ground near "their ends -on old timbers or to, as indicated at 16. a This is with'a view' to V allowing thepoles to turn until-they are bellyt o down and the-framing will be doneon'the proper side; so that when the poles are later set v in arow they will all be bellied in the same-direction, and in sighting along such f a row, the polestwillbe found to fall in pretty.

nearly ajstraightline; The framing of a pole consists inproviding the notches 17', herein afterreferredto as gains,'and holes '18 atthe capped end'1 9 for'the receptionof the usual cross'arms: To fully appreciate the advantages derived in the use-0f the machineaof our invention for doing this work with power,

one should have an explanation of the tedious operationslthat have to be gone through in doing the work by hand, as, it is'now done. In

framing apole by hand using a hand saw, chisel and hammer, brace andbit, the'notches 17 1.haveto belaid ont measuring from; the

o capped end 19, then marked off; with saw cuts, and then'chiseled out all to approximately the same depth 1 and reasonably smooth; hThen, too-,:the'notches"have to be checkedto seethat they are all in parallel planes. This; takes considerable time since ythe'workis necessarily: a cut andtry proposition'. [After that,'the places for the bolt holes.-18"have to be located and the holes V boredasaccurately as it is possible without having' anything toserve as a guide." It:

1 f should be evidentthatpole framing done in thislway means a highlabor'cost and the out- 7 put islimited and the work notnearlyas juniform as cou-ldflbe desired." Themachine of our'invention, whichwill now bedescribed,

has been designed with 'a' view/Ito: being a this work practically entirely with power so as to cut down labor cost and enable larger Referring now to Figuresrland 2, the ma i chine of our invention comprises a main frame 20 arranged to be suitably secured on the pole 15 at the capped end thereof to support a unit 21 thereon in as many diiferent positions as there are gains and holes to be out and bored, in the present :case four, the unit 21 being a power-operated combinationgaining and boring device to cut the gain 17 in one operation'and bore thehole 18 inanother. The unit 21 will soonbe'described in detail. The frame20 comprises a pair of opposed east end members22'joined at either side thereof by three longitudinal frame 7 members 23; 24:3J1d 25. The members 23 25 are all tubularso as to make for lightness and it will be noticed, thatthe members 23 project beyond the ends 22;of the frameto provide a pair 'oflaterally spacedhandles26 at eachend of the frame by'me'ans of which v the same is arranged'to beraisedby two workmen ofi one pole andiplaced onlthe' next.

The frame is rendered quite rigid by having the members 23 and 24 disposedin the same vertical plane, above one another and by f V bracing thesame'atintervals with 'struts'27 reaching vertically from the member 24tup to the member 28 and with other struts 28 and 29 provided between themembers 23 and"25 and 2 1 and-25; respectively, and 'byi' the use of trusses 3O reachingfrom" the top of the ends 22 jof-the frame out to the junction of the struts 27 and 29 with the frame member 24; The'principal strength with this struc; tural form of the frame work isinaverticalf 1 plane tolkeep the same from buckling under theweightofthe unit 21, and there is enough, -;r1gidity"otherwise for the frameto assume, whatever slight sidethrust may beimposedthereon-in the operation 'of the unit 21," as

will 'soon a ppean- Now, the ends 22 of the e frame areformed with a V portion31 atthe middlethereof as shownin F ig.'8, so as to J provide diverging jaws 32 "on thebottom.

thereof, to engage and center themselves on the side of the pole when the; ends of the j i v 7 frame are placed thereon byfthe workmen, Q 7

The'jawsl 32 are also suitably toothed, as I 2 shown in Fig, 8,: to grip the pole, andin-sete teeth bite in and take a good' hold; andthere by-make theframe more 'or'less rigiol'Withv I V -'the polefby that meansgalone. AInsetting'the a frame on thepole, the'workmanatthelcapped p rend,19sightsdownwar'dly toifmake sure that a practicalsolution for the problem of doi'ng aigauge collar 33 suitably clamped one rod ting the frame on thepole, the workmen, will bear down on the 'handles26 't'omake the '34 projecting from the oneend 2201 the frame is in line with the end of the pole. The object is thus gauging the placingof the frame on the pole will appear later. After the frame has been placed as just described,

it is arranged to be clamped securelyby the closing of a pair of jaws pivoted as at 36, on each of the ends 22 to either side of the jaws; 32. .The jaws35 have long teeth 37 mounted [thereon to dig into the polein the closing of the jaws. Each pair of a'ws is operable from one side of the frame by means of a hand wheel38 mounted on a shaft 39 re, ceived in bearings 40,011 the end of the frame and having right and left hand worms 41 thereon meshing with gear sectors 42 formed on the jaws 35. When the wheels 38 are turned clockwise, the jaws 35 are. arranged. to close to grip the, pole and thereby clamp theframe 20 implace and, of course, when.

the wheels are turned in the opposite directi on, the jaws arearra'nged to open to permit removal of the "frame; It takes very little time to set the frame ona pole and clamp the same in place.

. be lifted ofi the frame 20 bytwo workmen standing .at opposite sides of the machine, and moved from one operating position to another. These handles arealso used in com municating'movement to the unit 21 trans- T. versely with respectto the pole in the gaining operation, aswill soon appear. The frame 42 is preferably of tubular construc tion to make for lightness-,four pieces of tubingbeing suitahly'weldedtogether at the 2 corners ofthe frame. The tubular construe-' tion also permits extension of a flexible conduit 45 through one side of the frame to lead in wires to the electric motor 46 constituting the power means of the unit. The piece of f tubinggthrough which the conduit 44 is ex- I elongated, hollow bosses 49 cast integral therewith slidably received on the sidesiof the frame and fastened in place by means of set screws 50.- \A branch 51 projects upwardly from the boss 49 for the conduit 45 T to-be extended through a hole; in the side piece of the frame upwardlyand out for connection with themo-tor 46, as at 51'. A manually operable switch 52.,for controlling the operationgof the :motor 46 is provided adjacent the point51, so that it is convenient V to makeconnections with the switch on the one hand'and the motor on the other. There isa sufficient length of conduit 45 between the.

bosses 51" and "51" to: allow for .predeter-i mined range. ;of movement of the motor .46

up-or down for apurposewhichwillasooii appear. It shouldbe evident'that' while an elec-' tric motor is herein disclosed .We might use an air motor or oneoperated 1n so-me other way, in whlch event aycondult'corresponding to the conduit45 wouldconstitute a means for deliveringcompressedair'toJthe motor Q The unit 21 is arranged .to'besupported on the frame 20 with-thexframe 43 ofthe' unitplaced in either one of; apluralityiof sets of guides 53.. Four sets, are shown in Fig. 1:,-there 5 being that many gains to be cut and holesto be bored inthe pole." The guides 53 are mounted onthe longitudinal frame members 23-of the frame 20 and it will be observed that in each set there are four guides, ,onepair on each of the frame; 1nembers23, so as tohavetwo'guides-receiv ing each side piece of the'frame 43 near op- .positeends thereof, asjappears in Fig. 1, to;

holdvthe unit in a predetermined position transversely with respect to" the pole I and v guide itfor-endwise movement'in thatfposija ,tion. The guides may be of any suitable or preferred construction; Those herein shown comprise blocks 54 fitting over the top'of'jthe frame members 23 and suitablvplamped' thereon, as by means of -U-bolts-55 extended upwardlvthrough the blocks from "beneath .the frame members and receiving nuts 56 on the projecting ends thereof, the tightening of which serve" to clamp the guides in ads justed position; A 'pair'of rollers "57 are mounted in each block in a guide channel58 to either side of the frame member 23*and' parallel withit, and the frame 43 rests on these rollers, for easy movement. 'Itis, there 'fore apparent that the placing of the differ;

ent sets oflguides 53 determines the spacing of the gains 17 and that the guides alsoserve as anti-friction roller supports on which the frame 43 of the unit 21 is arranged to be given movement transversely with respect to V the pole for the cutting of the gain. Now it'shouldzap'pea'r, that the object in providing thegauge collar 33 on the frame 20 is to insure location of the uppermost gainl'? "at a predetermined distance down "from-the capped end 19 of the pole. Inv other words, the adjust-mentof the guides'53 on the frame 20 determines the spacing of the gainsin the se'ries and the adjustment. of the collar 33determines the spacing of the endmost' gainof the series in' apre'determined relation tothe capped end of the pole. i

1 Referring now to Figs. 3-7 for an understanding of the details of construction ofjthe combination gaining and boring unit '21,;i't will, first of all, be seen that we have en 5 bodied in one unit a cutter head 59.to-c ut the gainsanda boring spindle 60 andbit= 61" to drill theholes. The'head 59and spindle:

60 are both driven by the motor 462 as will now be described. The motor, together with:

the head and spindle, forms a junitaryuas sembly supported on slides 52 vertically slid able in'guideways 63 providedyin the side 2 plates 48. A cross-shaft 64 received in'bearin'gs 65 in the slides 62 has pinions 66 on op-'- posite ends thereofneXt to the slides meshing with racks 67 fixed to the side plates '48,

whereby to communicate movement to the slides by turningv the shaft. A worm gear ;68'is provided on the shaft 64' at an inter mediate point: and has a worm 69 meshing with it arranged .to be turned by'means of a hand wheel 7 O mounted on the same shaft with the worm suitably received in a bear-- ing 71 rigid with respect to the side plates 62,

"as will presently appear. .The hand wheel is preferably disposed on the same side of the unit 21 as the switch 52,-both being easily. accessible for theworkman stationed V at one of thehandles 44 of the unit 21. A-

main casting 72 provides a housing .73 for the motor 46, as shown, in Fig. 7 closed at one endand open at the other. On theiop- *posite side ,of the wall at the closed end of the -=housing 73 is formed another housing 74 :for'the carin rovidin drivin con nections between the motor46 and the head 59 and spindle 60. Thus, the armature 75 for themotor is carried on an armature shaft are,mounted on the plate 78sand provide vmountings for gears 82'and 83 meshing with the gear 77. The gear 82 drives algear 84'.

' in, the upper end of the casting ,72, The

76 which extends into the. housing 7 4 and carries a gear 77 on the end thereof; 'A

cover plate 78 formed integral with theadjacent slide 62, as indicated by the -.websi79 in Fig. 5, forms'aclosure'fo'rthe housing 74 and'is suitably secured in place 'bymeans of screws, as shown. [Two posts 80 and81 keyed on a shaft 85" which drives a bevel pinion 86 disposed ina'housing 86 formed pinion 86 meshes with a bevel gear 87 formed on the lower end of .a vertically disposed, in-

ternally splined sleeve 88 mounted in the bearings provided in the upper and lower 1 ends of a housing 89, fastened ontop of the casting 7 2 sojjasto constitutea closure for the housing.,:86. The sleeve. 88 constitutes a driving head for the spindle 60,-wh1ch' is .splined thereon, for a sliding driving con- "nection, as. will soon appean-i :So much'for the spindle drive, atxleas't for the present.

' The gear 83meshes with a pinion90 keyed on thee'n'd of a' shaft 91'onwh ch'the cutter "driven along with the spindle 60.1. In passhead 59 is mounted. .From this itfis a p-,

parenthow the cutter head 59 is continuously 7 ing, it will be observed that the walls of the housing .73 for the 1notor'46 areannularly ribbed, as shown at 92,, for cooling purposes." The field coils 93 are suitably mounted inside the housing, and a plate 94 serves as a closure for, the open end of thei housing and j asamounting for one of the armature shaft 7 bearings. The adjacent slide 62 fastened to the plate 94. A bracket '95 e a-p m ing the other end of the shaft 91 carrying the cutter head 59, is fastened to the outside of the slide 62 at the lower end thereof, as

appears at 96 in Fig. 3, for quick and'easy removal, whereby to permit access to the cutter head whenever it is-desired to' replace the same or remove-blades therefromi for.

sharpening or replacement. The nut 97,

threading on the shaft 91, serves to hold the cutter. head 59 in place.

Gauge bars 98" are suitably secured, one on the lower end of the casting 7 2 on one side of the head 59 andthe other on the lower end of the bracket 95011 the opposite side of the head, and these extend horizontally and preferably in parallelism, with the lower edges thereof disposed in the same'horiz'ontal plane at a predetermined elevation with respect to the periphery of the cutterhead. The bars provide a convenient place-for mounting a] sheet metal shield99 extending over slightly more than the upper, half oif the head so as toafi o'rd protection'for the workmen on both sides thereof, without interfering with the operation of the cutter-head on the work. In

'operation,1in cutting each gain one of the workmen will turnthehand wheel 70 so as tolower the unit 21 just enough'tobring the gaugebars 98 to rest on the side of thepole;

That will insure the properelevationof the cutter head 59 with respect to thepole and, V of course, thefact' that the'vertical adjustment embodies an intermeshing worm and gear at 68:69. avoids any likelihood of the unit losing the adjustment after'jit is" made; Then the gain can'be cut by simply moving the unit by means of the handles 44- crosswise with'respe'ct to the pole to feed the cutter head through the work; In the gaining operation, it is obvious that the bit 61 must be kept in a retracted, raised position. 'We shall. now describe the 1 means for accom-" plishing that purpose. u j I a It is evident in Figs."3,-4 andfithat the motor 46 and cutter head 59f are disposed sub s'tantially in vertical alignment and that the, I

spindleGO: is oflsetfin relation to the motor and cutter head so that the bit'61 extends downwardlyfalongside the motor and cutter head to be fed into the polewhen the unitis disposed with thecutter .head alongside the pole. Atubular guard 100 reaches-down w from the housing86 and encloses thebitjf61 enough .toavoid anydanger ofa Work-man catching his sleeve or other partofhis clothit is-also apparent in that figurehow the splinedportion 102 extends upwardly inside'- ahollow column 103 mounted onthe top of upon the basemethe housing, 8.9.1 I he height of the column; 103' with relation'to the rest of thequnit 21;-

clearly shown" in- Figs. 2 andj8, and" the;

splined portion 102 of the spindle 60 isof 5 equivalent length top' of. the column in of'the spindle. Since the splined portion'is of sufficient length it must alsoappear that the spindle isarranged tobe fed downwardly aproportionate; distance, more than enough to-teed the bit 61 through the polein which:

theahole is to be bored. I The upper end oijthe splined portion hashthe inner race of an anti-friction, thrust bearing 104v. fastened thereto as at 105, the'oute'r race ofisaid bearing 'beingclampedyas appears at 106, in a cross-head 1.07 adapted to serve as asuspension rmounting" for the spindle and its at- 'taohectbitq Theend's of the cross-head 1074 constitute handles which. project through; longitudinal. bayonet slots 108 provided n I the walls o'tthe column 103-. 1 When the spindle is to 'beretrac'ted [the handles, .forrni'ng a part of the cross head 10.7;aregrasped and raised to the up er ends of; the slots 108; and are swungsidewiseto enterthesaine in; the offset ends 109 ofsaids-lotsthereby s e-- curely lockingthe spindle iniretracted posig tion, leaving nothingo'f thebittl exposed; to "be-bored, the handlesgform-r When a hole is ing, apart of the cross-head are simply re tracted from the? ofisetends 109 of the; bayo; net slots 108vand the spindle- 60; is lowered until'thebit 61 encounters the pole, where-g boring of the hole naturally coin mences; In the'boring operation it is, evident thatjthe appreciable weight of thespim dle-BO, owing to theelongation oat-its s'plined; portion :2- and: the: fact that-the weight, of.

m the cross-head107' is also imposed thereon, is enough "toins'ure sufii'cient thrust on the bit to'take careoftherteeding of the bitthro u gh gravity.- lln passing attention is called to the collar 11'0 sl-idahly received; on

the pole byboss 49 on the oneside plate L8 otithezunit" 21 it" provides for the loeation ot the blt'fil orf the center line otthfe pole when the frame 4:3? is moved to ,one side'of (the frame '20 with the inside roller 57 of whichever guide 53 is being used. That isrto' say-,2 there will be named for adjusting the" collar 110; it will remain in thepositi'onin which thesame C5 hasybeenassembled onthe machine;

so as to reach almost to the the retracted position enough to bring the collar into engagement It s b e f t et o e g id e s t ena conveys a fairly good understandinggbttha;

operation of; the" machine; It shouldfbe .evi

lentthationce the guides 53 have been properly} adjusted on the frame 2Q for the prop-,

rasing f th e nd h l s mi n-d the-gauge collar 33hasbeen properly adjust;

ed to provide for "a :predeterminedspaqing; Qft pp s ega nilt wi h 'r pee to t e capped end1 9*0t the pole, the workmen can, place-'thefranieon one after anothen ofa series otpoles with, perfect assuranceyof; gets: ing the gai s 17 and hole -18; a pre e ytm proper pointsaon -all of thepoles. lOrdinarily, each ofthe gainsi'sjout before; the hole th for? s; b red? and; j or, t a neaen the;

cross-head jl0 7, willlhegplac ed in the offset pp n 9 of t e ay ne gs t 108M Or QK Y ga ii iu -telnt e,c tin abfil eachga nflthe won m lt Place t un t, I

7 guides 53:, ja nd the hand Wheel 70 is adjusted to-iflelevateor lower the j head 59;; ugh'i BJl I hQ iga' getb r98 t l e? a. set of across -the ;5side of the pole. andjthus insure;

Cutting; Of e ni pre i e epth desirederas close thereto as practicable J 'The handlesl are then used t push: or pu-ll theunit', crosswise-witharespect'tothepole-t0- cause theaheadfii) to outithe gaina A' fter strikesrtheiroller 57 fofiythe guide53 ,-'where-" upon thelfspindle: 60 is j arranged t0; ib i ref:

the pole for theboringqoperation. 1 As'sojon 21 ca'n thenmoveduto the next" position. for the cutting of? another 1 gain and the bore-- ing of; another hole inillike, manner; Ohv-i-r;

ously, ptheflone operation of'setting the frame" on the pole; and: theclamping 0t fthe 'polei end ofthe slots108;thelbit;will-beretractei byjmeansofthe 'cr0ss-1hefadl07and theunit 19 5f as'the holevis rcornpleted, as indicated bythe v1 dropping-of theaoross head 107 to the lower inplacepthereon, whichjtakesibut a tewvse i onds, takesthe placefiofia longseriesiot op -iierations that wouldrhaveto begone through:

in' thej layingout of tli'erwork'loy handjasi V should lsel'f 'ejvident. hen, in" each setting. of the unit 21 for' the cutting of a gain and the -:boring*of';a hole it is obviousjthat the gain willjbe out topreciselythe"sainewidth;

.and depth as well as to exact tparallelismj with-eaoh' ofthe otherj gains, an'di of 5 as 1 u ic ity w s e r b i ab wherie thewn w ne; by and, wing? inftin eand the consequent savingjin cost;

- a V a 1 power instead'of by hand are'othe'r apparent: V I

derived as a re i lt 1 of doing thei;w'ork ,withf r d bi? ti al ex ienc tes s ate be r ha f e 'm n'i terki i u h: a ma h ne each gaingisrcutthe bolthole theretor oa-n ,be- I I horedeinthe same setting'by simply niovingj' the frame 43: sidewiseyuntil t-t hecollargllfi leased to permitthe bltfi fili tobe'fed through i cas s do fi rko i Home ti e?W by hand. y

Referring to Figs."8'-13, attention is called 1 to the anti-friction pole supports112 which chine is set thereon and claniped'inplace, as

i well as tofhold the pole against turning durare so constructed thatwhen' placed under m opposite ends of 'apole for supportofthe pole the same is more certain ofgravitatin to the belly-down positionthan wouldj bevt e case if thepole were simply supportedon other poles 'or' timbers laidi crosswise beneath the i opposite endsthereof,and the supports are,

furtheiInQre,-iso constructedjas to permit fastening the'pole' rigidly in its.bellydown'posi- I h 7 conditions: In the movement of the lever 113' v ti onronce it has assumed such positibm-thereby insuring proper-locatibn of the gains and m holes and makingit easier to work with the machine than would be the case" if the-pole were simply resting on uncertainfsupports apttp allow the same to roll in one direction or. the other. The supports'112 are arranged in to be rolled'in position in the lowered condi- 6" tion sho'wn in Fig. 9 and are then arranged to be operated by means of theirhandles 113} to .move thegs'ame to the elevated position shown in Fig.8, whereby to raise the pole. from the position shown in"1?ig..'12 tothat shown in Fig.11'3, removing thejweight of the pole from it's supports '16 and placing the weight thereof on the supports 112. Thev supports 112 each comprise a' frameor body I; 114 in which two rollers 115 'are mounted 10" preferably on" anti-friction bearings for the antlfrijction supportof the pole on the body so that-the pole ha's' perfeet freedom'to turn 7 when resting on the'rollelrs, whereby togravi 'tate to the belly-down position. w-A pair of wheels 116' are inounted'on a yoke 117 pivots ed, as at 118, to the body114 for.v oscillation -from'the position shown in Fig. '9 to that shownin Fig.8. ,Thehandle113is pivoted I ,at119 to the body 114-and at ap'oint 120, at a '50 predetermined radius with respect "to "the point. 119, has pivotal ,connectionwith a link 121 which in turnis pivotally'connectedat a'point 122; with the yoke 117 whichvpoint isdisposed at a predetermined radiu s'with "555' respect to the pivot -pOiI1 J -1 0f the, Y

' 7 With thisarrangement, when the handle 1 13 1s moved from the Vertical position. shown in Fig. 9 through approximately to the horit; zontal position shown in Fig. 8 the yoke 117 is moved in 'a counterclockwise, direction f aboutj its PIVOt 1 18, thereby raising the body 114' to br ng the'rollers into engagement withtheqbottom side' ofthepoleto'raisejthe pole :ofl' its support '16. The pivoted end of r the lever 113 is'ofbell-crankform having'a ing'the course of the gaining and boring-op; erations. In other WQrdS,'the supports 112' time right angle projection 123, the free end. of

' which is -pivoted, as at 124,'t0- 'a link125.f

Another link 126 is pivoted atone end to the body'114, as at 127, and the other end of point of support for the two wheeled body 114. When thelever 113 is moved from the position of Fig. 9 to that of Fig. 8its1novement is limited by engagement of theprojection 123' with a shoulder 130 provided on the body 114 in such aposition of the lever where the pivots and'122 are past a dead center line running through the pivots 122" and 119 and where the pivots '119'and 124 are: past a dead center'line runningthrough the:

pivots- ,119 and 128. For'that reason, there is no need for providing any locking means i A to'hold the lever'113 in the position 'of Fig. 8,

thatvbeing well assured by thefa ct that the; parts havebeen brought past dead center to theposition of-Fig. 8 it is evident that the by the counterclockwise movement of the yoke 117. Z After the pole has been raised ofi' in the supports 16 and has; gravitated to the belly down position thesame is arranged to; be fastened in such position by means'of three jaws 131, 132 and 133.; The'jaws- 1'32 and 133 are pivoted tothe body114 at 134 and 135, respectively, and are arrang'edto be closed on the pole and the teeth made to bite into the pole by hammering or by hand or foot pressure thereon. These-jawsvgripf the pole from above oneither side of the cenat, and thereafter the j aw 131, which is -pivoted to the body'11'4 at 136,-'is arranged to be engaged with the pole from the "under side thereof. by meansof the handle 137 by hand e or foot pressure, asdesired: When the pole has been thus secured against turningouteof position, it is obvious that it is much h'an dier to .workthereon with the machine, there beingnollikelihood of the pole turning when e the frame 20' of the machine is placed there on; and the gaining and boring operations are subsequently performedfiln practice, it; 1

is customary for ,four'workmen to-work in two teams. While two 'ofthe workmen are engagedfin'the work of gainin'g'and boringla pole'supported on'two of these pole supports 1 12 the other two workmen canbusv. themselves in the work of removing another pair of supports from the pole previously gained and bored and get the next pole-in readiness for the gaining andrboring machine to be placed thereon. 1 I njthat way, there is mi 7 wasted and the maximum output is secured.

" It. is believed. the foregoing description While reference hasbeen made to the various conveysja good understanding of all of the ob ects' and radvantagesofnour inventionifl mam , specific details of construction it'should jbe vention.

frame with the pole lengthwise thereof, and a gainingdevice arranged to be supported on the frame in different positions spaced lengthwise thereof for cuttinga corresponding number of gains in the side of the pole.

2. A machine of theclass described comprising an elongated frame having portions formed to fit the side of a pole to lineup the frame'with the pole lengthwise thereof, a

I gaining device for cutting gains in the side of the'gp'ole; and a plurality" of adjustable guides on the frame spaced lengthwise there of for supporting said device in difierent op J crating positions on the frame determined by the adjustment of saidguides and guid ingthe same ineach position formovement transverselywith respect to the pole to cut the gains. 34 A machine of the class described comprising an elongatedfraine having portions formed to fit the side of a pole to line up the frame with the pole lengthwise thereof, and a combination gaining and boring device ar-' ranged to be supported on the frame in different positions spaced lengthwise thereof for cutting a correspcnding'number of gains and boring'acorresponding number of holes in the pole the said device being arranged in each operating position to cuta gain andlbore a hole. 4. Amachine'of the'class described comprisin 'an elongated frame having portions formed to fit the side of a pole to line up the frame with the pole lengthwise thereof, a plurality of adjustable guides on the frame spacedlengthwise:thereofand arranged tobe placed in predetermined desired positions accordingto the locations of gains and holes to be made in the ole and acombination aining and boring device arranged to besrip ported on said guides ind fferent operating positions on theframe determlned by the 'ad -v justment of said guides the said guides serving to guide the device for movement transversely with respect to the pole to out again in each operating position of the device the said guides also serving to locate the device properly with respect to the pole for the boring of a hole in each operating position of the device. p

a 5. A machine of the class described comprising an elongated frame having portions formed to lit the side of a pole to line up the frame with the pole lengthwise thereof, a

combination gaining and boring device com'- prising an auxiliary frame, a gaining cutter head supported thereon in a horizontal position and a boring spindleisupported thereon 7 in a vertical position, and po'wermeans: for.

driving the cutter head and spindle also ear ried therewith on the auxiliary frame, and a plurality of. guides on the mainframe spaced lengthwise thereof for supportingthe 'auxil iary frame of said device in different oper ating positions iand guidi-ng' the same for movement transversely with respect to the pole'for the cutter head to cut the gains, the said auxiliary. frame being arranged in each of its operating positionsto be moved 'to aposition withathe boring spindle in a predetermined relatio n to; pole res boring the latter; a r

6." Ina machine 'ofclassidescribed, the

combination of an elongated frame compris ingend menibers:formed substantially at t'he H the endsof the end members and arrangedat'o middle thereof to fit thesidejof a polewhere} to lineup. the iframeilengthwise with ith'e poleyandside members for the. framejoining' 79o be disposed on opposite sides ofthe polefor V supporting purposes, there being'means pref V erably fordetachablysecuring the end members of the frame to the'pole, and a portable powerioperated gaining device arranged to be supported on: the "side members of? the frame in any one of a plurality of positions spacedi lengthwise of the pole; the saididevlice being supported so as 1 as, havemovement 0h thetfra-me transversely. with respect to the pole. for the cutting of. a gain therein.- 1 f i 7. In a machine ofthe class described comprising a portable power operated gaining and/or boring device for operationzon the side of a pole at a plurality of positions spaced lengthwise of l the pole, an elongated frame-arranged to be placed: on the pole in acertain position to support said device-in the plurality; of 'predeter'mined desired posi tions, said frame comprising {end members lit the side of apole to lineup the frame bers and arranged to bedisposed on opposite sides of the pole for supplort of. the aforesaid device-{secondary side membersfor the frame i iallyatthe middlethereof to connecting the en ds of tlie end members; the

same being disposed below and substantially parallel with the first mentioned side members, vertical struts atone OnmOr'e in'termediate' positions onthe frame spacing the pri mary" and'secondary' f side members,. and

trusses extending from :the end members toward each other from opposite ends of the frame a secondary side members. e w I 78; In amachine of the class-described com d'inclined between the primary and iao side of a pole ata plurality'of positions spaced lengthwise of the pole, an elongated frame arranged to be placed on the pole ina certain position to support said device in the plurality of predetermined desired positions, said framecomprislngend members formed sub- 7 stantially at the middle thereof to fit the side of a pole to line up the frame lengthwise with the pole, side. members for the frame joining the ends of the'e'n'dmembers and arranged'to be disposed on opposite sidesof the pole for support of the aforesaid device, secondary side members for. the frame connecting the ends of the endmembers, thesame being disposed below andsubstantially parallel with the first mentioned side members, vertical struts atone or more intermediate positions on the frame spacing the primary and secondary side members; and trusses extending from the end members towardeach other from opposite ends of the'frame and inclined between the primary and secondary side members,

third side members connec tingthe ends of; the

. end members in laterally spaced relation to transverse" struts connecting the third "side" the primary and secondary side members, and

members with the other side members;

9. 'In a machine of the class described, the

' combination of an elongated frame comprising end members formed substantially at the middle thereofto fit the side of a pole whereby to lineup the frame lengthwise with the pole andw side members for the frame joining the'ends of the end members and arranged to be disposed on opposite sides ofthe' pole for supporting purposes, there being .means preferably for detachably securing the end members of the frame to thepole, and a portable power operated gaining and/or boring unit orthe like arranged to besupported on the frame in different positions spaced lengthwise of the pole, the saidunit comprisingJa horizontal secondaryframe arranged to restcrosswise of the main frame on the side members thereof, the said secondary frame providing places on the ends thereof serving as handles for manually lifting and placing the secondary frame in different positions on the mainframe, a power'operable tool carried on the secondary frameand projecting downwardly-therefrom for operation on the pole, and power means also carried on said secondary frame for operating said tool.

10. In a machine of the class described,-the combination of an elongated frame arranged to be mounted on a pole in endw'ise alignment therewith, a plurality of guides disposed in a predetermined spaced relation on said frame to determine a series of positions of a unit to be placed on said frame, a power operated unit for gaining and/or'boring the pole adapted to be supported on said frame held in said 'guides' in the-different predeterminedpositions whereby to determine the accurate spacing of the gains or holes on'the vtionto the capped end thereof.

In a machine of the class described comprising a power operated unit for gaining and/or boring poles, an elongated frame for V supporting said unit on a pole arranged to ole; and meansfor gaugingtlie locationof the frame endwise of the pole in spaced rela fit on the side'of a pole and span a given lengththereof wherein the gains and/0r holes.

are to be made, said frame comprising end vmembers arranged to be disposed crosswise of the pole, each of saidend members having substantially V-shaped portions for reception thereln of the side of thepole wherebyfto line up the frame endwise with respect to the pole, and means for detachably securing the 'frametothe pole. l 1 i 12. In amachine of theclassdescribed comprising a power-operated unit for "gaining and/or boring poles,*anelongated frame for supportingsaid u'nit'on a'pole' arranged to fit on the side ,of a polc'a'nd span agiven length thereof wherein the gains and/ or holes are tobe made,said frame comprising end members arranged to be disposed. crosswise of the pole, each of said end ine'mbers having substantially V-shaped portions for reception therein of the side of the pole whereby to lure up the frame endwise with respect to the pole, and means for detachably securing the frame to the pole, saidmeanscomprising a pair of jaws pivotally mounted on each of so i the; end members of the frame on opposite I sides of'the v-portions thereof and arranged I to grip the pole from oppositesides, and manually operable means for closingTand openmgthe jaws.

13. In a machine oftheclass described, 7

' the combination of an elongated frame ar:

ranged to be replaced on the side of a pole spanning a given length thereof in which a v series of gains'andhol-es are to be made, said frame being'constructed to provide longitus dinally extending supports on opposite sides of the pole, a portable auxiliary frame arranged vto be placed on said supports crosswise with respect to the pole andarrang'ed to j have movement on saids'upports transversely relative to the pole, a power operated cutter head adapted for cutting gainsin the pole,-

14.111 a machine of the class described, the

combination of an elongated framearranged Nov. 22, 1932.- J. J. HERLBAUER ET AL WINDSHIELD WIPER Filed May 8. .1929

' INVENTORS iz Jfirlbaaer M ATTORNEY

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