US2636785A - Scaffold support - Google Patents

Description

A ril 28, 1953 H. P. ALBRECHT ET AL 2,636,735

SCAFFOLD SUPPORT Filed May 1, 1947 4 Sheets-Sheet l Inventors HENRYPQLf/RECOHJ KERMIT |L5 I IITTQRA Ef April 28, 1953 H. P. ALBRECHT ETAL 2,636,785

SCAFFOLD SUPPORT 4 SheetsSheet 2 Filed May 1. 1947 mfm MM i T L t wnnH VFW A m M% f? HEB HK P 8, 1953 H. P. ALBRECHT ET AL. 2,636,785

SCAFFOLD SUPPORT Filed May 1. 1947 4 Sheets-Sheet 5 Inventors HENRYPALBRECHT KERMl H.Wu.s N wff Atto April 28, 1953 H. P. ALBRECHT ETAL 2,636,785

SCAFF'OLD SUPPORT Filed May 1, 1947 4 Sheets-Sheet 4 v (D 0' KO '0 .Q 8 w m m 8- Fig-15 Inventors HENRY 1? ALBRECHT KERMIT H.w'

BK @bfozzj Patented Apr. 28, 1953 SCAFFOLD SUPPORT Henry P. Albrecht and Kermit H. Wilson, Minneapolis, Minn assignors to Wilson-Albrecht 00., Inc., Minneapolis, Minn., a corporation of Minnesota Application May 1, 1947, Serial No. 745,280

3 Claims. (01. 304-) This invention relates to a scaffold support. While the invention might have many applications, it particularly is designed and illustrated as a support for holding timbers forming a scaffold, which scaffold supports operators for working on the ceiling or walls of a building.

It is an object of this invention to provide a scaffold support comprising an elongated member or bar adapted to extend in horizontal position, the same having at one end means constructed and arranged to be disposed in a wall and having means at its other end comprising a ground-engaging support, said support preferably sloping toward said wall.

Itis a further object of the invention to provide a scafiold support comprising a horizontally extending timber-supporting member, means at one end of said member such as an angle bar or T-shaped bar adapted to extend into a wall between the bricks or other members thereof, said member having connected adjacent its other end a vertically extending member adapted to be held in different positions in a supporting member comprising upwardly converging bars which preferably slope toward said wall and are separated quite a distance at their lower ends in a direction substantially parallel to said wall.

It is another object of the invention to provide a scaffold support having a supporting means comprising upwardly converging bars connected so as to be relatively swingable to have their lower ends farther apart or closer together, means for holding said barsin different positions, a vertically extending member secured to the upper ends of said bars and projecting thereabove, a second member carried by said vertically extending member, means for holding said second member in different vertical positions, and a timber-supporting member secured to the top of said second member constructed and arranged toreceivejoist-like timbers on edge and also to receive joist-like timbers or boards in flat position. It is more specifically an object of the invention to provide a scaffold support such asset forth in the preceding paragraph in which said vertically extending member is in the form of a cylinder and said second member is movable in said cylinder, said cylinder having circumferentially spaced vertically extending open-ended slots in its upper end and a pin adapted to be placed in any one of a plurality of vertically spaced holes in said second member and disposable in a pair of said slots.

These and other objects and advantages of the invention will be fully set forth in the following description made in connection with the accompanying drawings in which like reference characters refer to similar parts throughout the several views and in which:

Some of the important features of the inven tion disclosed herein are disclosed and claimed in a copending application filed by us on March 23. 1953, under Serial No. 343,814.

Fig. 1 is a view in side elevation of a scaffold support embodying the present invention, certain parts being shown" in vertical section, said view also showing a portion of a wall and a portion of a scaffold in vertical section;

Fig. 2 is a top plan view of the device shown in e- Fig. 3 is a horizontal section taken substantially on line 33 of Fig. l, as indicated by the arrows;

Fig-sis a horizo tal section taken substantially on line 4-41 of Fig. 1, as indicated by the arrows; I s

Fig. 5 is a partial view in perspective showing one end of the device disposed in a wall;

Fig. 6 is a partial view in side elevation of a modified form of support;

Fig. 'l is a top plan view of Fig. 6; Fig. 8' is a partial perspective view of some of the parts; I f

Fig.9 is a partial view in side elevation of some of the parts; as is also Fig. 9a;

Fig. 10 is a partial view in front elevation of another form of the invention; V

Fig. 11 is a view in side elevation of Fig. 10;

Fig. 12 is avertical section through the upper end of the device;,.

Fig. 13 is 'a view in horizontal section taken substantially on line l3--l3 of Fig. l1 and shown on a reduced scale;

Fig. 14 is a partial view in perspective showing the upper end of the device including timbers thereinj V Fig. 15 is a view in vertical section taken substantially on line 15-45 of Fig. 14, as indicated by the arrows;

Fig. 16 is a partial view in vertical section of a portionof the device;

Fign l'l is a horizontal section taken on line l'|l1 of Fig. 16. as indicated by the arrows; and

Fig. 18 is a perspective view of a clip used. Referring to the drawings, particularly Figs. 1 to 5, a scaffold support is shown comprising an elongated member 20 adapted to be disposed in horizontal position. While member 20 might take various forms, in the embodiment of the invention illustrated it is shown as a T-bar having its flange extending horizontally and its central web extending vertically downward. Member has secured to one end thereof a member 2|. While member 2| could be variously formed, it is illustrated as a T-bar having the top of its flange resting on top of the flange of member 20 and having'its central web extending'vertically. MemberZi is thus ininverted position relative to member 20. Member 2| is constructed and arranged to be conveniently disposed in a wall 22 of a building. The vertical web 2m thereof can conveniently be disposed between the ends of a pair of bricks 22a formingsaid w-alland the side portions of the flange 2|b can conveniently be disposed between the adjacent side-of :vertically adjacent bricks. This is clearly shown in Fig. 5. The end of member L20 can abut the outer surface of wall 22, as shown in Fig. l. A vertically extending member 24 is provided 'and while this might take various forms, in the emhodiment TOf :the invention it is :shown as ;a .cylindricalmember and -specificallyras a pipe. .A clip 25-:shown:as formed of z-a pair of .flat steel plates are secured to -pipe .24 in any suitable manner,1as bywelding. Clip Eli-has spacedssides z25b projecting at one side. of pipe 24 and these areidisposed at eitherside of .the web ZBaof member 20 and secured thereto-in any suitable manner, :asbytherivet =26. Member has a slot inzitsiupper end. receiving flange 2 ta. .Memleer r24iiS1diSp0Sed in;and-slidable in another cylindrical:member '21. ,Member 21 has formedv in its top a plurality of vertically-extendingslots :z'laropen atltheir .uppenends. Memberz l isprovided With a series of vertically spaced holes 2240..

Ami-n 28 is adapted .to be disposed in any "one of:;the1-holes:-2 4a:andto bereceivedin a:pair of oppositely disposed slots 21a. Slots 21a arecircumferentially spaced and tour of these rare shown 90 degrees apart. .-A ground-engaging support 3|] is provided and while this might be variously formed, in the :embodiment of the invention -illustrated .it comprises upwardly converging. members or bars 30whaving their upper ends engaging the sides of ,member :21. 3| which is illustratedas :formed froma rod 'has its tends :extending :across one side of members 30a respectively and secured thereto in;any-;-suitable manner, 2&8 by welding. "While :members 300. might be variously "formed, :they are -illus- 'ti-ated :aszanglebars. Yoke 3! :is bent inwardly at its central portion -so-eas to :engage member 2 1 and ;is -;connected to .member 2;! in -,any suitable manner; asiby welding. Member :12 his thus firmly and rigidly secured to the 'upper end io'f rthe support :36. Support--30 also :comprises a plu- .rality of :bra-cing members :33? "shown as'urods extending horizontally betweenanol engaging the sideszof bars 3.0a to which they are connected in r any suitable manner 1 as "-by welding. A chain 32 is connected to one end of pin 28 and;is connected=atxitslother end to rone :of the bars 130a.

illn ioperation'when wall 22 is :to be built, the bar 29 can be disposed as shown with :member 2| disposed in the wall, the other end of bar 20 will be supported, asshownzin-Fig. ,1, by member -24 and support "313. There will be two or more of the devices and boards or "joist-like timbers 34 108.11 be laid :on :top of :mernbers '20 and *extend between the same. ient scaffold is formed by;.members 3t and the operators can stand :on this scaifold and continue to build wallv 22 upwardly. "When the wall is :upto a sufficientheight; member 2| can be withdrawn-from between the bricks 22a and-the A yyoke A very conven- 7 Bit) \ tending :sides, rnotches .orslots 5m.

"compact shape when not in'use softhat it can be easily and-conveniently stored or transported.

Member 29 can swing about pivot 26 so as to .icome into substantially parallel relation with member 24.

In Figs. 6 to 8a different form of ground-en- ;gaging support is shown. This support com- ,iprises a plurality of elongated members or bars i ilflgand 1while these might be variously formed.

they are illustrated as upwardly converging angle bars. .A vertically extending member 4| is provided and this is illustrated as in the form otacylinder or pipe. A pair of front bars 48 at one side of the support engage member 4| andwill be. secured theretoin any suitablemanner,.as by welding. .A brace 4.2 extendsfro-m eachof said. front bars-.40 secured to member 4| and these-engagememberAI adjacent .the bottom thereof. vMembers 42 will be secured to front members 40 -and-to.member4| in-anysuitable..-.manner, .-as by welding. The-pair of rear bars Ail comprise .bar .=members extending :upwardly and having their upper .ends engaging memberAi. Azplate 4.4 of trapezoidalshape-is :seourecltoone side of said rear bars 40 in any suitable manner, as by welding. .A.pin-. |5'-extends loosely throughelongated holes A ta in the outer or remotersidesmf'bar member-49 and-is .welded .to member 4| at its central portion. A rod 4-6 1 extends between said latter pair of .bars All and is in engagement with and. is secured tto the sidesof saidbarsiin any .sui-tablemanne-r, as'by welding. .A small plate or lug -41 is see: cured tonne .sideof member .4 at:-its lower-.end by .weldingiand said lug is apertured .to .receive .a:bolt orrivettdwhich connects it withthempper .apertured .end of -barz5.|l. :Bar '50 extends over rod .45 and. is. provided at its lower.-side-.with .a plurality of spaced notchesi50a. =Bar=5oican be moved so that rod 45 can be -.disposed in zany one of -.the notchesfifla. A .U-shaped clip or yoke .51 vfits-overbar and is :slidable on :said .bar. the .same rha-ving formed in its downwardly -.ex-- :When rod 4-.6.issin-.one of tlrenotches-Ella,yclip=5l can be:slid into -.position with and 46 disposed in the :slots 5m, ;-as .shown a in Fig. 6. Rod -.5| is .thus rfirmly locked itOi'IQdAfi and the rear'pair of bars inconnected to {rod :46 are .held firmly' in one position. .With the described structure the :rear ;:pair of bars Ail .can be rmovedrsothat their lower ends are -:closer to 1 or :farther {from the. lower :ends of the other pair of bars. Bars Anna-re shown-as having circular plates 52 :secured to their lower ends in any suitable :manner, 'as by welding. Member All is provided at :its 'upper end "with a plurality -T0f I circumferentially: spaced open-ended slots Ala-diametrically alined in pairs.

.Due -.to the fact that pin 45 -.passes through the elongated holes -4|la,-a swinging movement of the .rear barsrtii connected by plate 44 about member is possible. This capacity 'of movementenables the foot members 52 on-said-bars 4|)- tozrest on or engage'onuneven surface. These bars 49 therefore adjust themselves to :th'ev :surface .on which 'foot members 52 'restf'andso to speak, seek their level. This is-quite an importantifeature. Applicants thus have. a four-legged support that Willi-set level and rigid on an uni even surface.

triangular bracing effect affording great rigidity to the scaiiold. This effective bracing renders it possible to use lighter material.

In Figs. and 11 a somewhat different form of support is shown comprising a pair of upwardly extending elongated members shown as in the form of angle bars. A third elongated member 56'also shown as an angleybar extends upwardly toward the upper ends of members 55 and is disposed centrally thereof. A connecting yoke 51 shown as formed froma round rod has its ends bent at right angles and extending through holes in the remote sides of members 55, as shown in Fig. 13. Yoke 51 at its central portion extends around and over a pin or short rod 58 secured. centrally to the inner side of member 56 at one side and offset somewhat therefrom at its upper end. (See Figs. 11 and 16.) Members 55 are connected at spaced points by members 59 shown as in the form of angle bars extending therebetween and secured thereto in any suitable manner, as by welding. A, vertically extending member an is provided projecting above the tops of members 55 and 56 and having secured to one side thereof a short distance below its upper end a plate 6|. Plate 6| can be welded to member 60. Plate 6| tapers toward its upper end and is arranged to be engaged by one side of the upper end of member 56. A bolt or rivet 62 pivotally connects member 56 to plate 6|. Member is also engaged by the upper ends of members 55, which latter members may be welded thereto. Bracing bars 63 extend between bars 55 and the lower end of member 60, said bars being welded to members 55 and 60. The upper end of member 60, which member is in the form of a cylinder or pipe, is provided with a plurality of vertically extending slots 6011 open at their upper ends, said slots being circumferentially spaced and arranged in diametrically alined pairs. With the construction shown in Figs. ,10 to 13, the yoke 51 can readily be removed by lifting its central portion above rod 58 and removing its end portions from bars 55. Bar 56 can then be swung into position substantially parallel with member 60. The support is thus collapsed into much more compact form. This will make it very convenient for transportation.

A rod or pipe 66 is provided and this is adapted to be disposed in and slide in member 4| or member 6|]. Member 66, is provided with a plurality of vertically spaced holes 66a extending therethrough and a pin 67 can be disposed inany one of holes 66a and have its ends disposed in a pair of alined slots 4la or Ella. Member 66 has secured to. its upper end a plate-like member 68. While member 68 could be variously formed, in the embodiment of the invention illustrated it is shown as comprising a fiat bottom wall portion bent upwardly at the center thereof to provide vertically extending portions 68a with their flat sides in engagement and these portions may be connected in any suitable manner, as by welding. Outwardly of each side of this 6 centerwall 68a,- the-bottom wall portionfiati's again bent up to .form the other vertical side walls of .a pair of open-ended recesses: 68b open at their upper ends and of substantially rectangular form in side elevation. From the upper ends of these other vertical side walls the member 68 is bent outwardlyto provide spaced horizontal wall portions 680 the outer ends of which are bent vertically to form relatively narrow flange portions 68d. Portions 68c and 68d thus form a trough-shaped channel. Bracing bars69 extend downwardly from the lower outer sides of portions 680 to members 66. Bars 69 are welded to member 66 and portions 680. 'The recesses 68b can conveniently receive joist-like members'or timbers Ill on edge, as shown in Figs. 12 and 14. The portionBBc can conveniently support boards or joist-like timbers H in fiat position, as shown in Fig. 15. Whenthe timbers m are disposed, as shown in Figs-12 and 14, other boards or timbersl3 can be'sup ported thereby. There will'be two or more of the scafiold supports used and. timbers '13 will extend between the timbers 10 supported in these two or more of the supports. 3

From the above description'it will bes'een that I have provided a very simple and convenient scaffold support. The same can readily be ad justed to support the scafiold or platform at different heights. As describedmembr 68 can conveniently support timbers or boards both in position on their edges or in flat position. The scaffold platform can thus'be readily constructed to suit the specific location and job. The 'pa r ts of the device are made from standard and easily procured material and the supports can be quickly and inexpensively produced. When the scaffold is set up for use, as shown in Figs. 10 and 12, for work on the walls or ceiling of a building where it is only possible to work at night when the other workmen are absent, the members 66 can be adjusted as desired. When the scaffold must be taken down, the legs can be folded as above described and the members 66 if necessary removed from members 60. When the scaifold is again put up the next evening and members 66 are placed in position, they will come to the same point so that they do not have to be adjusted each time the scaffold is erected. The device has been amply demonstrated in actual practice, found to be very successful and efficient and is being commercially made.

It will of course be understood that various changes may be made in the form, details, arrangement and proportions of the parts, without departing from the scope of applicants invention, which generally stated, consists in a device capable of carrying out the objects above set forth, in the parts and combinations of parts disclosed and defined in the appended claims.

What is claimed is:

1. A scafiold support having in combination, an elongated vertically extending cylindrical member having a passage therethrough, a pair of bars engaging said member at their upper ends and diverging downwardly therefrom, members rigidly connecting said member and bars, a second pair of bars pivoted adjacent their upper ends to said first mentioned member, the same diverging toward their lower ends and being swingable toward and from said member and first mentioned bars, a third bar pivoted adjacent the lower end of said first mentioned member, a rod extending between said second ma n ef"-*ba1?$, said third-bar 'havifig i'z'slots its "lowersidefl-"any oneeof whichris "adapted to extend oversaw-"rod; and a yoke slidable on said third bar having open-'endedxslots in the sides thereof, said yoke'being'movable to'have said 1 rod disposed within said last 'inentioned slots and thus "lock said last mentioned bar in posi- Lti'OD.

--2.:-A scaifold supporting device comprising a plate-like member including "Fa bottom wal1,'=-opposite vertical side walls and an intermediate vertical wall defining *a'pair of recesses open at their vu pperendsfor' receiving timbers such as '-2 x '4splaced edgewise therein from above, said member furtherzincluding horizontal walls extending laterally from'the upper edges of said side walls and terminating in vertical relatively -c-narrow flanges -.defining a relatively wide-shallow ehanneltfor receiving a itimber such as 'a :plank disposed on oneof its sides-in overlying relation tel-said recesses.

3 A :scafiold supporting structure having in 'combination, a support comprising a pair of angul'arly extending upward-1y converging barsfa vertically extending member having a vertical -bore therein secured to said bars adjacent the upper ends thereof and =-projecting thereabove, abar-member pivotall-ycarried by said vertically extending member at the side thereof opposite said 'pair of bars, means for rigidly holding said bar :memberin a plurality of spaced diverging positions relative to said vertically extending :member, a second vertically extending member 'slidable in said bore, means for holding said second vertically' extendingmember :andr having opposite vertical-side "walls and an intermediate "vertical wall defining therebetweena ipair or timber receiving recesses open at their upper ends," said plate like member further comprising horizontal 'wal'ls extending laterally 'from'said sidewalls; and vertical flanges-rat :the outer "ends of "said horizontal walls providing *a relatively wide channel for receiving a "timber in a spanning relation to said recesses. v c

- HENRY :P. ALBRECHT. KERMIT WILSON.

References-cited in the "lfile lot this patent UNITED 'STATES "PATENTS "Number Name Date A I 232,55e Silvi'u's Sept. 21,1830 24 53,298 Perkins "que n, 1881 "2 519,508 nouns Nov.'1' 5, 1881 472,160 perk am-25,1392 1,552,901 Wengraf Sept. 8, '1925 1,'15'7,Dl5 Kingston May 6, 1930 '1,961,967 c mmon June 5, 19%4 2, 4 51 fi fia y - QDE 20,1 3 2,172,796 'Krasi'n Sept.f12,1939 2,297,316 Padgett Sept.'29, 1942 FOREIGN PATTFJFT 'IS Number Country *Date

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