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Publication numberUS2556611 A
Publication typeGrant
Publication dateJun 12, 1951
Filing dateOct 15, 1946
Priority dateOct 15, 1946
Publication numberUS 2556611 A, US 2556611A, US-A-2556611, US2556611 A, US2556611A
InventorsBorgman Anthony J
Original AssigneeBorgman Anthony J
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Adjustable scaffold
US 2556611 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

June l2, 195 A J, BQRGMAN 2,556,611

ADJUSTABLE SCAFFOLD Filed Oct. l5, 1946 /vr//a/f/Y J .BORG/wan 29 Z6 Z y Inventor Wye/:wy Hmm Patented June 12, *T951 UNITED stares eATnNr orties 3 Claims.

This invention relates to new and useful improvements and structural refinements in adjustable scaffolds, and the principal object of the invention is to provide a device of the character herein described, which may be conveniently and effectively employed when working in elevated locations, and which may be readily adjusted as to both length and height.

A further object of the invention is to provide lan adjustable scaffold which is simple in construction, rigid and dependable in use, and which will not easily become damaged.

Another object of the invention is to provide an adjustable scaffold which may be easily transported.

An additional object'of the invention is to provide an adjustable scaffold which will readily lend itself to economical manufacture and which is otherwise well Vadapted for the purpose for which it is intended.

With the above more important `objects in view, and such'other objects ascmay 'become apparen-t Aas this specification proceeds, the invention consists essentially of the arrangement and construction of parts as illustrated in the accompanying drawings, in which:

Figure 1 is a side elevation cf the invention.

Figure 2 is an end elevation thereof, taken in the direction of the arrow 2 in Figure l.

Figure 3 is a bottom plan View of the adjustable platform used `in .the invention.

Figure i is a fragmentary detail of one of the telescoped tie-rods used in the same, and

Figure 5 is a cross sectional View, taken substantially in the plane of the line 5 5 in Figure l.

Like characters of reference are used to designate like parts in the specification and throughout the several views.

Referring now to the accompanying drawings in detail, the invention consists of an adjustable scaffold designated generally by the reference character i6, the same embodying in its construction a pair of end supports Il and an intermediate support l2, disposed in a spaced parallel relation and each consisting of a length of tube angulated to provide a cross-member i3 and a pair of tube-like sockets I6.

It will be noted that the supports ll and IE thus assume an inverted U-shaped configuration and a substantially tubular leg l5 is slidably telescoped in the lower end of each of the sockets I4, as is best shown in Figure 5.

The lower extremity of the legs i5 are provided with suitable base flanges l5, and each of the legs is formed with a row of apertures il, arranged in diametrically opposed pairs.

A further pair of diametrically opposed apertures i8 are provided adjacent the lower end of each of the sockets Ill, the apertures i8 removably receiving suitable pins or rivets is, which in turn, are selectively receivable in the apertures ll. It will be noted that in this manner, the relative position of the legs l5 with respect to the sockets it may be readily varied, in other words, the overall height of the suppcrts Ii, i2 together with the associated legs may thus be adjusted.

The supports 'il and I2 are secured together by a pair of telescoped `tie-rods '253, each of the latter consisting of a tubular section 2l slid'- ably receiving in one end thereof a similar section 22. The tie-rod sections 20 are Welded or otherwise suitably secured to yone .of the end supports 'l l and to the intermediate support l2, while the sections 22 are secured to the remaining end support.

It will be observed that the overall length of the scaffold may be ladjusted by simply sliding the section 22 with respect to the section 2 i .and means are `provided for preventing said sections from becoming separated.

Said means consist of suitable bushings "fifi pressed in the ends of the sectionsr El and slidably receiving the sections 22, while further bushings 25 are ,pressedonto the sections 22 and slidably engage the sections 2l.

In this manner, the sections will be prevented from becoming separated by the contact of the bushings 24 and 25.

An adjustable platform 26 is positioned upon the cross-members i3, the platform comprising the sections 2l and 28. The platform section 2l consists of a plurality of spaced parallel slats 29 secured together at the ends thereof by means of the end members 36, while the section 28 consists of similar slats 3l secured together by the end members 32. The two sections are combined to form the aforementioned platform by the slidable inter-fitting of the slats 29 and 3! as is best shown in Figure 3.

The platform section 21 is secured to one of the endsupports l l and to the intermediate supports I2, while the section -28 is secured to the remaining end support. It will benoted that in this manner, the overall length of the platform may be readily adjusted, concurrently with the adjustment of the aforementioned tie-rods 20.

It is believed that the advantages and use of the invention will be clearly understood from the foregoing disclosure and accordingly, further de scription thereof at this point is considered unnecessary.

While in the foregoing there has been shown and described the preferred embodiment of this invention it is to be understood that minor changes in the details of construction; combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as claimed.

What I claim as my invention is:

1. An adjustable scaiold comprising a pair of end supports and an intermediate support disposed in spaced parallel relation to each other, each of said supports comprising a length of tube angulated to form a cross member and a pair of sockets arranged in an inverted U-shaped conguration, a leg slidably received in the lower end of each of said sockets, means for releasably locking said legs in predetermined relative position with respect to said sockets, pairs of longitudinally extending telescoped tie-rods, one rod in each pair being Xed to one of said end supports, the remaining rod in each pair being fixed to the remaining of said end supports and to said intermediate supports, a pair of complemental sections forming a longitudinally adjustable platform, each of said sections comprising a plurality of slats secured together in spaced parallel relation, the slats of said sections being slidably in teriitted together, transverse substantially rectangular strips carried by the undersides of said sections adjacent their outer ends, the inner edges of said strips bearing against the cross members of said end supports, and a pair of transverse, spaced parallel strips carried by the undersides of said sections adjacent their inner ends forming stops for engaging the cross member of said intermediate support.

2. An adjustable scaffold comprising a pair of end supports and an intermediate support disposed in spaced parallel relation to each other, each of said supports comprising a length of tube angulated to form a cross member and a pair of sockets arranged in an inverted U-shaped configuration, a leg slidably received in the lower end of each of said sockets, means for releasably locking said legs in predetermined relative position with respect to said sockets, pairs of longitudinally extending, telescoped tie-rods, one rod of each pair being Welded to the other surface of one of said end supports, the remaining rod in each pair being welded to the outer surface of the remaining of said end supports and to the intermediate support, said tie-rods being disposed perpendicular to said supports to connect and retain the supports spaced parallel to each other, and a platform supported on said end supports and said intermediate support.

3. An adjustable scaiold comprising a pair of end supports and an intermediate support disposed in spaced parallel relation to each other, each of said supports comprising a length of tube angulated to form a cross member and a pair of sockets arranged in an inverted U-shaped configuration, a leg slidably received in the lower end of each of said sockets, means for releasably locking said legs in predetermined relative position with respect to said sockets, pairs of longitudinally extending, telescoped tie-rods, one rod of each pair being welded to the other surface of one of said end supports, the remaining rod in each pair being welded to the outer surface of the remaining of said end supports and to the intermediate support, said tie-rods being disposed perpendicular'to said supports to connect and retain the supports spaced parallel to each other, said means for releasably locking said legs in a predetermined relative position with respect to said sockets including a pair of locking pins for each of said sockets, each of said sockets having a pair of diametrically opposed openings receiving said pins, each of said legs having a diametrically opposed group of longitudinally'v spaced apertures for selectively receiving said pins.

ANTHONY J. BORGMAN.

REFERENCES CITED The following references are of record in the 1 file of this patent:

UNITED STATES PATENTS

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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2682899 *Jun 26, 1952Jul 6, 1954Edward MillerSlotted top workbench
US2741514 *Jan 16, 1953Apr 10, 1956Fisher Glenn ECeiling board jack
US2875006 *Apr 14, 1955Feb 24, 1959Union Special Machine CoStand for sewing machines and sewing unit comprising the same
US2876046 *Apr 26, 1956Mar 3, 1959Owen Theodore JScaffold support and its use
US2958602 *Aug 13, 1956Nov 1, 1960Sonneman Products IncContinuous method of making popped corn balls
US3071204 *Jun 15, 1959Jan 1, 1963Piltingsrud Dale RAdjustable scaffolding
US3082712 *Mar 24, 1958Mar 26, 1963Richard E DentschModular work bench with stringers connecting frame elements
US3108657 *May 9, 1960Oct 29, 1963Stair N Fold CompanyScaffold device
US3218065 *Feb 8, 1963Nov 16, 1965Anderson Joseph WExercise device with treadable base
US3251321 *Dec 17, 1962May 17, 1966Pallet Devices IncSliding adjustable pallet
US3266444 *Dec 17, 1962Aug 16, 1966Pallet Devices IncSliding adjustable pallet
US3302751 *Jan 25, 1965Feb 7, 1967Ahlberg Russell WScaffolding construction
US3327654 *Mar 10, 1966Jun 27, 1967Collapsible Pallet CoCollapsible cargo pallet with removable top
US3394774 *Dec 16, 1966Jul 30, 1968John E. LanierLeveling attachment for supports, such as ladders, scaffolds, trestles, and the like
US3595180 *Feb 10, 1969Jul 27, 1971Module Computer CorpAdjustable height device for data processing equipment
US3915102 *Jul 12, 1974Oct 28, 1975Lawrence Peska Ass IncWheelchair table
US4222459 *Feb 23, 1979Sep 16, 1980Atlantic Cement Company, Inc.Protective scaffold
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US4457397 *Nov 10, 1981Jul 3, 1984Scala John JPlatform for stairs
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US4742986 *Nov 7, 1985May 10, 1988Ernest CsontApparatus for constructing concrete buildings
US4760801 *Jul 20, 1987Aug 2, 1988Campbell Ernest LOutdoor cooking table
US4943336 *Aug 18, 1988Jul 24, 1990Ernest CsontApparatus and method for fabricating composite panels for use in concrete buildings
US4951781 *Dec 4, 1989Aug 28, 1990Bliss Jeffrey JScaffolding structure
US5515894 *Oct 7, 1994May 14, 1996Dunn; Scott A.Multiuse craftsman table
US5715910 *Jul 20, 1995Feb 10, 1998Koch; Michael W.Stairway platform
US6070936 *Oct 15, 1998Jun 6, 2000Holland; GlennToddler table with a plurality of integral child seats
US7607513 *Nov 29, 2007Oct 27, 2009Elmo RojasTelescoping lifting hand truck with a folding platform
US8065967 *May 6, 2009Nov 29, 2011Harry WongModular welding table
US8640827Feb 28, 2011Feb 4, 2014Justin B. Breithaupt, JR.Adjustable scaffold base
DE1193888B *Dec 10, 1959May 26, 1965Rolf SusemihlMehrzweckarbeitsgeraet
Classifications
U.S. Classification182/186.6, 144/286.1, 108/147.21, 182/204, 405/148, 108/65, 256/59, 182/223
International ClassificationE04G1/32, E04G1/00
Cooperative ClassificationE04G1/32
European ClassificationE04G1/32