US2741515A

US2741515A - Timber holder

Info

Publication number: US2741515A
Application number: US386473A
Authority: US
Inventors: Sr Lawrence S Holmboe
Original assignee: Individual
Current assignee: Individual
Priority date: 1953-10-16
Filing date: 1953-10-16
Publication date: 1956-04-10
Anticipated expiration: 1973-04-10

Description

April 10, 1956 1 s. HOLMBOE, SR

TIMBER HOLDER 3 Sheets-Sheet l Filed Oct. 16 1953 JNVENTOR.

ATTORNEY April 10, 1956 l.. s. HOLMBOE, SR

TIMBER HOLDER 5 Sheets-Sheet 2 Filed Oct. 16, 1953 NSY INVENTOR.

. TOD

FIG.

April 10, 1956 L. s. HoLMBoE, sR

TIMBER HOLDER 3 Sheets-Sheet 3 Filed OCi.. 16 1953 A OJ Fl G. 9

Z l NVM/TM5 A TTORNE V United States The present invention relates to the construction of buildings, and the like, and more particularly to the supporting of scaiolding concrete forms, staging, and the like, used in construction work.

As is the practice in construction work for building bridges, buildings, and the like, a sturdy support must be provided to hold the concrete. The horizontal snpporting cross-members are called purlins and the upright supports are called shores.

The prime object of the present invention is to provide a means for holding the upper end of a shore against a purlin to prevent lateral movement of the shore.

A similarly important object is to provide a means for holding a shore in place in relation to the purlin when the purlin is jacked too high.

Another object is to provide a means of connection between a shore and a purlin that may be made by one workman only from the ground oor.

Yet another object is to provide a means for connection between a shore and a purlin without nailing a scab or piece of dimension lumber on the connecting members.

Another object is to provide an inter-connector that may be left in place on the purlin when moving supporting structure from one location to another.

An additional object is to provide an inter-connector that is light and simple in construction, yet strong and sturdy, and comparatively cheap to manufacture.

An additional object is to provide an inter-connector of two colors for additional ease in their use.

Other objects will be apparent from the following description when taken in conjunction with the accompanying three sheets of drawings, wherein:

Figure 1 is a fragmentary perspective view showing in solid lines two of the devices in place, and showing in dotted lines a purlin and two shores, one in place and the other being raised toward the device, as applied to one of the disclosures herein.

Figure 2 is a front elevational view of the said device.

Figure 3 is a left side elevational view of the said device.

Figure 4 is a right side elevational view of the said device.

Figure 5 is a fragmentary perspective elevational view of the said device showing a shore in solid lines positioned to be nested within the device, and showing in dotted lines a fragment of a purlin.

Figure 6 is a View similar to Figure 5 showing a shore properly placed within the said device.

Figure 7 is a vertical cross-sectional view of the said device in operation, taken substantially along line 7--7 of Fig. 6.

Figure 8 is a front elevational view, similar to Fig. 2, of an alternate embodiment of the said device.

Figure 9 is a right side elevational view, similar to Fig. 4, of an alternate embodiment of the said device.

Figure 10 is a vertical cross-sectional View, of the alatent rice ternate embodiment, of the said device as seen in Fig. 8.

Like characters of reference designate like parts in those, figures of the drawings in which they occur.

In the drawings:

Reference numeral 1 indicates, as a whole, a portion of supporting scaffolding.

Reference numerals

2 and 3 indicate upright supports or shores. v

Reference numeral 4 indicates a horizontal supporting cross-member or purlin resting on the top-most end of the shores 3, and reference numeral 5 indicates horizontal supporting cross-members resting on the purlin 4.

The device, per se, consists substantially, in general conguration, ofv a square frame with four projecting legs, and is indicated, as a whole, by reference numeral 10. 'Ihe frame 11 is preferably made of iron or steel rod material rigidly connected, preferably by welding,

'to two vertically positioned

parallel rods

12 and 13,

also preferably made of iron or steel, perpendicular to and on opposing sides of the frame 11. The two opposing sides of the frame 11, connected respectively to the

vertical r'ods

12 and 13, are horizontal and parallel. One such side is indicated by reference numeral 14 in Fig. 2, and a portion of the opposing side 15 is shown in Figs. l, 6 and 7. The vertical rod 12 is welded at a selected point, intermediate its ends, into the horizontal frame side 14 at a selected point, intermediate its ends, and perpendicular to the said side 14, with one.

end 16 projecting above and the opposite end 17 'depending from the horizontal side 14. Similarly the opposing vertical rod 13 is welded into the horizontal side 15, parallel to the rod 12, with one end 15 projecting above the horizontal side 15 equidistant to the end 16 and the opposite end 19 depending from the said side 15.

One side 2t) of the frame 11, as shown in Fig.v 4, is perpendicular to the two

sides

14 and 15 and integral therewith and is formed to make two horizontal shoulders 21 and 22 on the same plane as the horizontal sides 14 and. 15, and is bent downwardly to form a loop 23 withl the lower edges 24 equidistant with the rod end 17 from the horizontal side 14, for the purposes more fully explained hereinbelow. Similarly the fourth side 25- of the frame 11, opposite the side 20 as shown in Fig. 3, is perpendicular to the

sides

14 and 15 and is formed to make two

horizontal shoulders

26 and 27 on the same plane as the horizontal sides 14 .and 15, and is bent downwardly to form a loop 28 with the lower edge 29 equidistant with the rod end 19 from the horizontal side 15.

The two depending

loops

23 and 28, together with the depending rod ends 17 and 19, form a downwardly opening socket to nest the upper end of a shore 30 as shown in Fig. 6.

Similarly the two vertical parallel legs 16 and 1S, with

horizontal shoulders

21, 22, 26 and 27, form an upwardly opening open-ended socket to engage an intermediate portion of a purlin 4 as shown in Figs. l, 4, 5 and In operation the device 10 is placed on the under side of a purlin 4 with the upwardly projecting

leg ends

16 and 18 on opposite sides of the purlin 4, as shown in Fig. 4, and with the

horizontal shoulders

21, 22, 26 and 27 in contact with the under side of the purlin 4. The leg ends 16 and 18 have two

horizontal perforations

31 and 32 through which double headed nails 33 may be driven to rigidly hold the device 10 on the purlin 4, as shown in Fig. 7. To position a shore 30 in the downwardly opening socket of the device 10, formed by the two depending

leg ends

17 and 19 and the two loops 23 and Z8, a workman pushes the shore Sil upwardly until its end 34 contacts the depending leg 17 at 36 and the lower edge of the loop 24 as shown in Fig. 5. The shore 30 is then pushed laterally until two of its sides contact the dependinglcg 19 and the loop 28 respectively, and then pushed upwardly to nest in the said socket, as shown in Fig. 6, with the upper'end 34 of the shore 30 in contact with the lower surface of a-purlin as indicated by reference numeral 36 in Fig. 7.V

Tov removev the shore 30 from the device 10, the shore 30 is released at its lower end to allowvthe shore'30 to fallout of contact within the said socket of the device 10. The device 10 may be repositioned at will`along the under side of a purlin 4, by removing the double headed nails'33 and re-inserting them into the purlin 4 in the newy locations. Y

It is preferable, for ease of manipulating thershore into position within the `inter-connector, and especially when the work'is 'done by only one Workman, that the r'short leg and loop andradjacent' horizontal side bepainted a light Vcolor such vas aluminum and the long leg andloop and adjacent horizontal side be painted black, or thelike. VVAnalternate method of making the lower socket of theV interconnectoris to bend or are the lower end 17A of the vertical rod Y12 outwardly, froml the perpendicular, andv similarly the lower end 19A ofthe vertical rod 13 is bent or ared outwardly, from the perpendicular, and in the `opposite direction from the end 17A and equidist'ant with the end 17A, as shown in Figs. 8 and 10.

The loop 23A of the side 20, with the lower edge 24A equidistant with the

rod ends

17A and 19A, is bent or ared outwardly, from the perpendicular, and similarly the'loop 28A ,of the side Y25, with the'lower edge 29A equidistant with the rod ends Y17A,'19A and the loop 23A, is bent or ared outwardly, from the perpendicular, and in the opposite direction frorn the loop` 23A, as shown in Fig. 9.

Ihe purpose of

flaringthe rod ends

17A, 19A and the loops 123A Vand 28A outwardly, is to form a larger opening of the depending socket thus formed for ease' of manipulating the shore 30 in place within the socket to contact the'purlin 4, as shown in Fig. l0.

`Obviously the invention is susceptible to some change or alteration without defeating its practicability, and I therefore do not wish to be confined to the preferred embodiment shown in the drawings and describedherein, further than I am limited by the scope of the appended claims.

I claim: y 1. Alseat'old intereonnector for connecting a vertically arranged support to a horizontal cross-member, Vcomprising: a rigid rod frame adapted `to be horizontally disposed on the under side of a cross-member, said frame having substantially parallel opposing sides describing a square for substantially contiguously surrounding the upper end portion of a vertical support and permitting the contact of said vertical support with said cross-member, said sides adapted to lie transversely of said cross-member formed to describe an opposite pair of depending, diverging upwardly open loops for guiding the upper end portion of said support into `said frame; anda Ypair of substantially vertically disposed rod guide members integrally connected intermediate their ends to opposing sides of said frame, a portion of Asaid-'guide members extending substantially equidistant and parallel above said frame to hold the same against lateral movementrelative to said cross-member, the depending portions of said guide members extending substantially equidistantly with relation to said loops and co-acting with the-same to guide the upper end 'of said supportinto said frame.

2. A scaffold interconnector for uniting a vertically arranged support and a horizontal-cross-member, said interconnector comprising: a rigid Vrod frame having Ysubstantially parallel opposing sides describing a square, each of an opposite pair of sides including'a depending, divcrging upwardly open loop, and Veach ofV the vrother opposite pair of sides including a substantially'gvertically disposed rod guide member integrally connected Vthereto intermediate its ends, a portion of each of'said rodrguide members extending substantially equidistantfand parallel to each other above said frame, said depending open loops and said depending portions of therod guide members having respectively a diverging relation. Y

References YCited in theile of this patent UNITED STATES i PATENTS 350,173 Udell 1--- Oct. 5, 1886 780,586 Thurston '..-.k Ian. Y24, 1905 915,074 Craig Mar. 16, 1909 1,830,702 Johnson Nov. 3, 1931 1,838,754 Frame Dec. 29, 1931 2,084,758 Anderson lune 22, 1937