US1757015A - Putlog - Google Patents

Description

May 6, 1930. A. R. KINGSTON PUTLOG Filed March 10, 1927 Patented May 6, 1930'V TIES PATE ALLAN 1R. ilzrNcrs'roN,v or soMERvILnE, :MAssAoHUsETTs Y Vrumoer y' Application filed. MarchlO, 1927. l. Serial No. 174,186.`

This invention relates to putlogs suchV as arejemployed as part of temporary; scaffold-V ing that `is erected for use in Working upon putlog anchor attachment which can, Withl ease and at the expenditure` of little labor, vbe quickly applied to a -log or `beam to com-` plete the putlog. Upgto the present time it 15 has been common practicefor manufacturers of scaiolding apparatus to produce the putlogs complete, including the usual Wooden log or beam, and to ship these complete logsr to the purchasers. Naturally theV freight v20 and other expense of shipping complete'logs from the factory to the purchaser 1s. comparatively great. My invention provides a putlog anchor attachment which can lbe manufactured, sold and shipped to the purchaser, Y, 25 Vseparately lthe purchaser furnishing;y the or beams `himself and applying v AWooden logs K the attachment thereto.Y In this way my 1nvention obviatesthe expense of :shipping comparativelylarge and heavy Wooden logs or` beams and, therefore, thef ultimate cost to` the user or purchaser ofthe attachment is Y less than heretofore. y

To Vthese ends I have Vprovided the peculiar features of construction Yand aring, description, they noveljfeatures of the invention vbeing particularly pointed outand dened in the claims-at the closeof thel description. Q I .p

-In the accompanyingdravvings: a

ing my. new anchor attachment applied there- Wall of a building andtoy a scaffold.

Figure 3 is an end vie'vvj of theputlog,viz.,

Yment is applied. Y

facture, a putlo'gY anchorA attachmenthaving to, said putlog being 'shovvn'as'pappliedto the the end thereof to which the anchor attach-. v

Figure 4 illustrates the manner in which l the anchor, of the putlogis inserted into, orV

Y removed from, the Wall of a building.

VFigures 5,6, 7 and 8 arey details of parts 'of theV anchor. attachment v hereinafter described.k

, Having reference thedrawinglrepresents the Wooden log or joist constituting the .body of my improvedv putlog. YAt one end of the body logfl'isa transversely disposed metal-bar- 2 bearing against that .end lof the logyand disposed between said end andan- Vother metalv bar3to Which'latter it is securedv by 1.a rivet 4c.V- The two'bars 2 and 3 are disposed crossvvise, or at right angles; and per# manentlyVfas-tened together by the rivet `4.y 4 `The metal'bar2 is made at one end with Nr amica an integral perpendicular extension 5 fitting Y y against one side ofthe log l, and at its free end'thislextensionv 'is made yvithajpairy of latcrally'jprojecting teeth 6 adapted to be embedded inthe sideof theflogl. At its opposite inneriend thefmetal bar 2is made VWith a. perpendicular lextension 7 that projects .througha' slot. 8,Figs. 2 andi 8,*formed ingthe bar 3. VThis extension 8 is provided atits free end with a tooth or prongf)v making .of`

said 'extension 7 5a hook' to engage'the brick l9'on` Whichfsaidextension rests When theV` putlog is appliedto avi/al1,y VSaiil prong serv# ing to'hold the` extension against movement extension Yorlfarin 7 'vis `recessed "or `notched y f 1 vaway-fromjth"ewall;y.4 Adjacent the'bar2'the an improved putlog, andv also,`fas a new article of Vmanuupon itsloweredgeas'atlO. When insert- V l ing the. extension vor armf-into the bricklvork -Y of thevvall, orwithdrayvingvthe' same theref from,l,'the putlogis usuallyic'antedf. more orfl ping, thercornerfflrlof the briCkilQjimmedi- I atelyi.beneath the "cktpension7'.V Figure l is a side elevation of a putloghav `Atits oppositeends vthe metal bar i made With-integral perpendicular .extensions 12, 12l fittinglagainst, and extending longitu- I a @dinally of, they toppand bottomsides of the log Figure 2 is a section online 2 2 of Fig. 1. Y

l. z l Near their eXtr-emitiesfthe:extensions or 'arms 12 ofjthe bar 3 are'apertured ltolreceive *lessras shovvnin'Fig. 4l,- and thepurpose'oft Vthe notch vl() is-to' prevent the/lower edge of fthef extension 7 from breaking down, or chipi are rigidly and strongly secured to the end end portion of the log 1 vertically and rigidly fastened thereto by means of thebolt 13and nut 14. It Will also be clear that through its engagement With the extension orarm'7the` yoke 3 12 rigidly holds.y `said extension 7i against vertical displacement relatively to thev .Near its ,free or inner end the arm'or eX-Y the arm 5 cofoperates VWith the yoke or stirrup logl, and holds the end cross-bar 2 against' twisting or breaking under the strain of, loads imposed upon the putlog.

tension 5 of thecros's-bar 2` is apertured to receive a bolt 15 provided with a nut 16, said'V bolt andi nut serving to `securely clamp the arm 5 in positionagainst fthe side of thelog l and to embed the prongs 6 in the log. `Thus 3,.-12 inV lioldingthegarm orf eXtensiony` and crossbar 2 rigidly in position against displacement relatively Vto the log.A

From the above description it Willbe clear Y that itjis only necessary to drill or bore. the tivo holes 17 and 19a-for. thebolts 1,3- anfd 15, respectively, to adapt the logfl to receive the metal anchor attachment, and it will also be` clear that these holes are readily located by applying the attachment to the end ofthel log `1 and. then vdrilling through vthe apertures ofarms 5 and 12.

The above described putlog anchor attach- `mentis Vofinexpensive. and etlicient construction andv can be easily and quickly applied to" a log or joist by an unskilled?vvorkinan.r Also this anchor attachment can be shipped ,sepa-p, v rately by the manufacturer; thereof to kusers of putlogs Whocan make use ci their own lumber infproviding the logfto'vvhichthe. at-

Y tachment is applied, thus saving the vexpense" d ofship'ping bulky and 4heavyt logs kWith'theat' tachment.

n Y The verticaldisposition oiifthe end,embrac-i1 ing yoke 3-123is advantageous forthe'reasonf that-both armsj12 assist ini-supporting the logf,` 1 a'ldfthe Stress orstrainonthe'intermediate pontion.3 is in a1directionlengthvvise oi-the latenthenpper end ofthe. slotV 8V preie-'rablyfk Vfitting against thel top -o1 the extension or arm ',7 andthe bottom edge ofthe latter beai'ff ing against the itop of the brick 19on WhichV be supported bya ledger board-.20.secured to vco posts 21 resting at their lovverendsuponthej ground.

VThe arms 5 and 1'2provide a socket 'orcage at the outer end of the anchor.v hook or larm 7 Y i lWithintvvhich is receivedjthe endot1 the pnt log,said,endbeing ifastenedgwithin said cage lby ineansoftheboltsl and'l', one dispose-d, 4 Y

' K gagement with said vvall engagi'ng ineinben'j` vertically and .the ptlierhorizontally. Y

It Will Lbe observed that the face of the metal membervor strap 12bearsagainst the outer fa'ceof the Wall when the scaffolding is in working position as shown in Fig. 1 and its lower corner bears thereagainst during the act of inserting Ior removing the brick engaging extensioii7but as the face ofsuch strap is of substantial, Width and itsfloiverwall engaging coiiier is rounded, it Will beseen that such a goodwvide bearing is afforded thatV no injury 0 1:k d efacementk of the outer face of the Wall from contact. of' the putlog therewith will happen even in more or less careless handling. rlhe close bearing of the putlog on both sides'of the bri'ck as shown in Fig. 1 is important to prevent anyv such'looseconnectionivith theivall as-topermit longitudinal .y moveiiientbif` the putlog, from Wind andiother.,

forces acting upon'tlie lscafl''ol'ding,and tend?A ing to move the same.

What l claim is:

1',- A putlog incliidingfa, log and ananchor attachment, said' anchor Vattachment comprising a Wall engaging member having Van inner hooked endpo'rtion adapted to be inserted'betweentvvobricks oi'a Wallandtov rest upon and'interlockjwith the lbrick bej] neatli it, al relatively perpendicular integral intermediate portion to 'fit latvvise against the end of. said bodylogand an outerV end] portion integral With 'and perpendicular to' said; intermediateA portion` to fitV flatwise against the'l side of the body log; a yokeinembei'Y connected jvitli'saidjivall engaging memf berA having its intermediateportionfitting against theintermediate portion of said Wall" engaging member at right angleslthereto and Withits arms disposedt'olit againstthe top andfbettomv sides, respectively, of theV body` log, anfd-meansfor fastening the outerendJ portioiiof'the VWall engaging memberan'd the I arms of thek yoke tothebody log.

A putlog anchor attachment.constructs ed in" accordance with claim Y1 and wherein the` intermediate portion ofthe,V yoke is formed' vWithfan.aperture tliroiiglixvhich said v vallfengagin'g'member extendsivithlitsupper,edge

abutting engagementyvith saidintermedfiat'e portion ofthe y'okefV A, y improvedfputlog,comprisingffa Woodinen. bodyl logfanl. a metal endl anchor, sa-id, an#` chor comprising va '[Wallrengaging 'member Y having a hookedV end portionconstitutilg"2in,. d Yextension of the. bodyf log adapted; to bei inij i v Y. *j sertedbetween two bricks'ofavvall,andto rest: d As usualgthe outer end ofthe putlog'll may upon and interlockfivith the brickbeneath a relatively perpendicular integralintermei diate; portionftting .iiatwise against the end ofitheibody. legenden Outer @mipmi@in7 g ist diate portion connectedztoland'in abutting enf and having its arms formed with bolt receiving apertures and tting against the .top and bottom sides, respectively, of said body log,

and bolts extending through the body log and through the bolt receiving apertures of the wall engaging member and yoke to fasten the anchor' tothe body log. i y Y 4. A putlog including a wooden' body log and an anchor attachment which comprises ai v.'allengaging element adapted to be inserted between two bricks of a Wall, and to rest upon vthe brick beneath it.,said wall-engaging ele, ment extending longitudinall of the log and lying against the adjacent sur ace thereof and means securing -together said element and said log, comprising metal parts which respectivethe brick beneath it, said wall-engagingelemeans securing together said element and said log, comprising metal parts `which respecnevbolt having a head to engage the out-er side Y ment extending longitudinally of the log and i lying against the adj acentsurfac'e thereof and means securing together said element and said logi comprising metal parts which respectively engage the top and bottom surfaces of said body log anda bolt passing vertically through a hole in the body log and through said parts,

of one part and a nut to engage the outer side.

of the other part, the portion of said wall-en-k gagino` element that engages the body log be#` ing atthe side thereof anda bolt passing transversely7 through the same and through the body log. n Y

6. A putlog including a wooden. body log and an anchor attachment which comprises a wall-engaging element adapted to be inserted between two bricks of a wall, and to rest upon the brick beneathy it,sa id wall-engaging element extending longitudinally `of the log and lying against the'adj acent surface thereof and tively engage the top and bottom surfaces of 5. A putlogincluding aV wooden bodylog ly of a body log, said offset portions being connected by a laterally extending part inbear againstan adjacent body log surface,`

andmeans to connect said anchor attachment-V with a bodylog. a y

: 8; A putlog anchory attachment comprising a metal wall-engaging member adapted to'be inserted -between vtwo bricks of a -wall and means for attaching saidmember toa putlog `tegral therewith and a strap on the outer side of said integral portion with means to `comprising a strap with opposite portions that extend parallel with one another and engage opposite sides of the putlog and a strap extending parallel with said portions and lying between them that engages another side of the putlog, said straps being attached to said wall-engaging member and having means for attachment to the putlog. j

9. Areputlog including a woodenbod l.log that is rectangular in cross section wit fiat surfaces and ananchor attachment comprising ametal wall-'engaging member adapted to be inserted between two bricks of a wall and v means attaching saidy member to said body logcomprisinga strapA with opposite portions that extend parallel with one anotherand are fiat and engage opposite rflat surfaces ofthe body log anda strap extending parallel with said oppositeportions of the vfirst-mentioned strap and lying between them and being fiat y and lying against another fiat surface of said wall-engaging member, andmeans including holes vthrough the straps and elements passing through such holes and throughfthe body log `attaching them to the log. Y

Signed by'me at Boston, countyof Suffolk and State ofvMassachusetts, this 7th day of March, 192.7. Y Y n f l Y ALLAN R. KINGSTON.`

body log, said straps being joined to said v said body log and a bolt passing vertically i ifnrough 'a hole in the body logand through said parts', the bolt having'a head to engage Y l the outer side of one part and anutto engagel the outer side of the other part, and a connec-V f tion between said log 'and the portion of the A wall-engaging elementextending longitudif nally thereof. 'Y e 7. A putlog anchor attachment comprising a metal wall-engaging member with-two por# tions offset to occupy di'erent vertical planes,

one of-such portions being adaptedto be in- Y serted between two bricksjof a wall and the other portion adapted to extend longitudinal u

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