US1077839A - Putlog. - Google Patents

Description

T. H. KINGSTON.

PUTLOG. APPLICATION FILED APR. 4, 1913.

l?? Patented NOVA, 1913.

'UNITED sTATEs PATENT onirica.

THOMAS Hf KINGSTON, OF SOMERVILLE, MASSACHUSETTS.

. n f M Ifreme- Specification of :[ctters Ifatent. j

Patented Nov. 4, 19:13.

Application md aprile` 1913". semi NOF/58,835.

To aZZw/Lo'm, may concern it' kriown 'that I, TrioMAs H. KrNGs'roX, a citizenof the United States, ai'd aresident dlieseii4 and State viof''Ma'ssachiisetits, have "invented certain-new and usefil Improvements in Futlogs, of which the following-isa's'pecifcatioi: 1^". ff f f 'f My' present invention has reference to improvements inlputlog's and particularlyto putlogs employed inf the erection of brick oi` masonry walls." "''lllie objects of the invention are to provide a piittog'llaving 'one 'enti-"adapted to4bei'in'e exerted-indd irm'ly 'anchred'inia wallV and a plank or floor supporting portion adapted t be swung independently of -said end and at any desiredhorzontal angle `to the: wall; which'inay be rreadily`attached to or removed f'u "brick Wall without injury thereto adfwhich issim'ple,v durable andi' strong. Other objects 'of the invention will appear tronith'efollowingdescription.'l i

I"Theinvention consists in a plank or ioor supportingibr provided' with' a hinvd mehefripniand 'ini-Such other novel tures of.' "cdnstructin and combination of view further illustrating the applicati'oiof erspectiveview;

my invention. Fig. 3 is a of the end of the putlog which 1s applied to the wall. Fig. 4 is a side elevationot the same. Fig. 5 is a top plan view of the same.

'Fig'. 6 is a section on the line 6 6 of Fig. 5.

Fig. 7 is a section on the line 7 7 of Fig. 4 and Fig. 8 is a view similar to Fig. 7 of the inner end of a wider putlog.

lIn a preferred form of the invention, 10 designates the Hoor supporting bar. At one end of said bar a rectangular portion is cut away from the under side` thereof thus forming the projection 11.

The U-shaped metallic reinforcing stirru 14 is secured .to the latter by the rivet 12 an by the vertical rivet 13 in such a manneras to leave a space 15 between the under side of said projection. and the horizontal side of said stirrup. Said vertical rivet extends through said rejection, through the aperture in one end) of lthe anchor late lfiwhich eiiten'ds into said recess 15am h throughthe horizrontalxside of the stirrup 1 4. -"lfheportiodo'f, said vertical rivet which. passs through said aperture in the anchor plate serves 'as a pivot therefor7 ahd'theportibn of 'said anchor plate which is within said re'cess is substantially of Athe same height'ras said recess so'that said anchor plate 'may be 'swung horizontally, but i'slprevented from nl ovingvertically or having anyr 'play on said Ipivot by the' under-'side of :the'projefction 1p1 and by the horiiontalgside off the stirrup 14. i Said ancliifplate is'iurther preventedffro'rrf moving vertically by*` the transverse' reinforcing/rivet 17 `which ex- .tendsrthrough theE Horizontal slotA 18 insai'd anchor 'andtlirough the vertical sides osai'd stirrupgthe width of saidslotl being substantially the saine as' the diameter 'of said reinforcing rivet so'as to prevent any verticalA play betweensaid slot andys'aid rivet and the length' of 'saidf 'slotbeigenough to allow sufficient laterakangular movementf said anchor platef Said.l anchor platteV i'sivcut away to form the bearing edge: 19i the'recess 2O adjacent the inner end' ofsaidfliearing edge and the downwardly projectingt'l'ug 21 on thefre'eiend of said anchor plate. The upper edge of the`4 free it tliellatter: is beveled-11222. i V

In'tlie use of the putlogs the custom-ary uprightsQBandledgerboards 24E of the 'scaffold are erected beside the partially constructed :wall Q6' and then' the anchor plate v16,'i'f the wall be of brick, is inserted between twobricks 27, of the outer vertical layer until it butts against the second vertical layer when it is moved downwardly until .the bearing edge 19 rests upon the top of the brick 2S. The latter movement brings the lug 21 down between said two vertical layers of bricks. The thickness of said anchor plate is substantially lthe saine as the width of the interstices between the bricks and the beveled edge 22 ,allows said anchor plate to be readily inserted.

It is to be understood that it is not necessary to leave out, to displace or in any way injure a brick in order to insert the anchor plate and that said plate is prevented from moving laterally, downwardly or outwardly after being inserted, and-that, although said plate is held firmly, the floor support-in g bai' 10 may be swung'laterally asL desired. The

the ioor supporting latter movement is one of the main features of the invention as it is often desirable to secure theA outer end of the putlog to an upright by a spike or other suitable means, and this would be impracticable it' said, putlog could not be swung against said upright, unless the interstice in which the anchor plate has been inserted is in a certain position with relation to theupright! Also, where the anchor plate is inserted close` to an inside corner of a wall in order that the putlog may support the ends 'of the'iioor planks at the corner it becomes necessary toswing bar considerably out of line with the anchor plate in order to reach a ledger board and upright. As the latter putlog necessarily is subject to more strain than the others shown in Fig. l, it is desirlable to make said putlog wider ,than the others, which allows it to be swung a sufiicient distance as in the construction of the putlog described the width of its inner. end determines the range of angular movement of the supporting bar with relation to the wall. The recess 2O prevents theanchor plate 16 from injuring the outer edge of its supporting brick. The putlogA may be readily removed from the wall by lifting the anchor plate suiiiciently to raise the lug 2l clear of the supporting brickiQS and then 'withdrawing the anchor plate.

While Ihave herein disclosed a single ernbodiment of my invention itiis to be understood that it is but one of many.which"mig ht be employed and still bewithin the'scope ort the following claims.

I claim 4 r l. A putlog comprising in combination a floor supporting bar, a recess at one end of said floor supporting bar, a rivet extending through said recessgand secured to said iloor d supporting bar and an anchor plate pivoted LeraarsV tion and the horizontal side of said U shaped stirrup, a rivet extending through said projection, through said space and through the horizontal side of said U- shaped stirrup with one end of an anchor plate pivoted on the within said space.

3. A putlog comprising in combination a f ioor supporting bar, a projection formed at one end of said floor supporting bar, a U shaped reinforeing stirrup secured to said projection in such a manner as to leave a space between the under side of said projection and the horizontal side of said stirrup, a rivet extending through said projection,

through` said space and through the horizontal side of said stirrup and one end of an anchor plate pivoted on the portionof said rivet within said space, the portion of said anchor-plate within said space being substantially of the same heightas said space. 4. A' putlog comprising in combination a Hoor supporting bar, a recess in one end of said bar, one end of an anchor plate vertically pivoted in said recess, a rivet extending transversely through said recess and through a slot in said anchor plate..

Intestimony whereof I have affixed my signaturejn presence kof two witnesses. t

THOMAS H. KINGSTON.

lVitnesses BENJAMIN As LANTIGUA, ALFRED H. MCGLINCHEY.

vportion of said rivet'f

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