USRE21101E

USRE21101E - hines

Info

Publication number: USRE21101E
Authority: US
Publication date: 1939-05-30

Description

y 30, 1939; c. w. HINES Re. 21,101

WELDING APPARATUS Original Filed July 51, 1936 2 Sheets-Sheet J.

. 1 W M 3g r 30 Y I H /5-- fin /fi May 30, 1939. C, w, N s I Re. 21,101

WELDING APPARATUS Original Filed July 31, 1936 2 Sheets-Sheet 2 Reiscued May 30,- 1939 UNITED, STATES PATENT OFFICE.

WELDING APPARATUS Clarence W. Hines, Chicago, Ill., assignor to Ohicago Bridge a Iron Company, Chicago, 111., a

corporation oi. Illinois Original No. 2,1fl1,856, dated December 14, 1937, Serial No. 93,699, July 31, 1936. Application for reissue February 2, 1939, Serial No. 254,329

5 Claims.

This invention relates to improvements in welding apparatus and, more especially, such appara-' the sheets. In making tanks in this way, difficulty has been encountered in alining and holding the sheets to properly place and locate them preparatory to the welding of the edges. By the use of my improved apparatus, the sheets of steel may be properly alined and held with their edges in proper position for welding.

My improved apparatus is cheap to manufacture, strong and rugged, and greatly facilitates the welding of various members, especially the edges of steel sheets as mentioned above.

Other features and advantages 01 my invention will appear more fully as I proceed with my specification.

In that form of device embodying the features of my invention shown in the accompanying drawings- Figure 1 is a view in side elevation of a portion of a steel structure, for example, a tank, showing some bottom and side plates in position for the butt-welding of their edges; Fig. 2 is a view taken as indicated by the line 2 of Fig. 1; Fig. 3 is a view taken as indicated by the line 2 of Fig. 1; Fig. 4 is an enlarged vertical sectional view showing the welding of a side sheet onto a bottom sheet; Fig. 5 is a view taken as indicated by the line 5 of Fig. 1; Fig. 6 is an enlarged view in front elevation of my improved welding apparatus; Fig. '7 is a sectional view showing the welding oi two adjacent edges of the side sheets of a tank or similar structure; Fig. 8 is a view similar to Fig. 1, showing a modified form; Fig. 9 is a view taken as indicated by the line 8 of Fig. 8; Fig. 10 is a view taken as indicated by the line III of Fig. 8; and

. Fig. 11 is a view similar to Fig. 10, showing a modiflcation.

As shown in the drawings, III, II and I2 may indicate sheets or plates of steel iorming the side wall, for example, of a cylindrical tank and I 3, one of the bottom sheets. The side sheets are butt-welded together and the bottom of the lower side sheet I2 meets the bottom sheet I3 at right angles, as shown in Fig. 4, so that the bottom sheet has a projecting margin I3 outside 01' the side sheet I2. I4, I4 indicate the welding of the sheets. In Fig. 7, I 5 indicates the welding of the edges of the sheets II and I2.

I shall first describe the apparatus used for (CI. u'a-sal holding the side sheets II and I2 or I and II. This includes a rectangular plate I6 with two square holes I1 and I8 adapted to receive apertured holding lugs I9 and 20 on the sheets I I and I2. 2| and 22 indicate wedges adapted to be driven through the apertures in the holding lugs I8 and 2|! to draw the sheets II and I2 against the plate I8 to bring-these sheets into the same plane.

The plate I5 is provided with

bars

23 and 24 above and below the upper hole I1 and

similar bars

25 and 28 above and below the lower hole IS. The sides of these bars form shoulders adjacent the apertures I1 and I8. 21 indicates a wedge adapted to be driven between the bar 23 and the holding lug 29 in order to shift the sheet II laterally with respect to the plate I6. I am using the term laterally to indicate the shifting of a sheet in any direction in the same plane. That is, the side sheets by proper positioning of the apparatus may be shifted upwardly, downwardly or sidewise; and, likewise, the bottom sheet may be shifted in any direction in its own plane. A wedge driven between'the bar 24' and the holding lug is will serve to shift the'sheet upwardly. 5 In like manner, the sheet I2 may shift either downwardly or upwardly by means of a wedge between the holding ing and the bar or 26. The wedge 28 is shown in the latter position to shift the sheet I2 upwardly. 30

The improved welding apparatus is also shown between sheets I0 and II and it will be seen that in this position the wedges 29 and 3|! can be used to shift the sheets in and I I sidewise with respect to the plate I6. The holding lugs I9 and 20 may be attached to the sheets II and I2 in any suitable manner as by welding and may be removed after the edges of the-sheets have been permanently welded together. 4 In Figs. 2 and 3, I have shown the invention adapted for holding aside sheet I2 in proper position to have its lower edge welded to theupper surface 01' a bottom sheet I2. As here shown, the holding plate I6 instead of being flat is angular. I have indicated this plate by the numeral IIB. Its upper flange has the hole II! and its lower flange, the hole 8, these holes adapted to receive the holding lugs I I9 and I20 attached to the side sheet I2 and bottom sheet I3, respectively. 5 The wedges I2I and I22 are utilized to draw the sheets tightly against the plate 6. Above the hole I I1 is the bar I23 and at the two sides of the hole III are the bars I25 and I28. The wedge I21 is utilized to shift the sheet I2 downwardly with respect to the plate H6 until its lower edge is in proper position on the bottom sheet l3 for welding. The wedge I28 is utilized to shift the bottom sheet l3 laterally with respect to the plate IIB to provide the proper projecting marginal edge I! prior to the welding operation.

In Fig. 8, I have shown a modified form. As

here shown, 2lfl,.2ll and 212 may also indicate sheets or plates of steel forming the side wall, for example, of a cylindrical tank. For holding the sheets 2Hland 2l2 or 2H and H2 together, I

provide plates 2I6 with reinforcing flanges 2I6'.

The plates 2|6 with the reinforcing flanges 2l6 may be formed by using channel irons.

The plates 2 l6 are provided with apertures 2|! and MB adapted to receive apertured holding lugs 2I9 and 220 .on the sheets 2H and 212. HI and 2 22 indicate wedges adapted to be driven through the apertures in the holding lugs 2l9 and 220 to draw the sheets 2 and 2i2 against the plates 2l5 to bring these sheets into the same plane. If desired, the aperture holding lugs may be turned at an angle of 90 when fastened to the sheet 2l2, as shown in Fig. 11, andin such case the holding lug 320 is made somewhat longer so that its aperturewil] lie mostly above the tops of the flanges 216, as shown in Fig; 11. When so used, the wedge 32| may lie on top of the flanges 2H5.

Although I have shown and described above the apertures as particularly applied for use in the welding of sheets of steel, it is obvious that it may be employed in connection with the welding 01 members of any kind. The useof channel members as shown in Fig's. 8 to 11 is particularly useful in connection with the welding of cylindrical surfaces, such as shown in Figs. 10 and 11. The use of the invention permits the establishment of a welding procedure which takes cognizance of the fact that shrinkage from welding is mostly across the joint, there being very little, it any, shrinkage in the direction parallel to the joint.

While I have shown and described certain embodiments of .my invention, it is to be .understood that it is capable of many modifications. Changes, therefore, in the construction and arrangement may be made without departing from bers to be welded together; wedges adapted to be driven through the apertures in the holding lugs to draw the members against the plate; a shoul der on the plate adjacent an aperture in it; and a ing lug and the shoulder toshift the member laterally with respect to the plate.

3. Welding apparatus, including: an angular plate apertured-to receive apertured holding lugs on members to be welded together in angular relationship; wedges adapted to be driven through the apertures in the holding lugs to draw the members against the plate; a shoulder on the plate adjacent an aperture in it; and a wedge adapted to be driven between a holding lug and the shoulder to shift the member laterally with respect to the plate.

4. Welding apparatus, including: apertured holding lugs adapted to be attached to members to be welded together; an angular plate apertured to receive said apertured holding lugs when attached to members to be welded together in angular relationship; wedges adapted to be driven through the apertures in the holding lugs to draw the members against the plate; a

shoulder on the plate adjacent an aperture .in it; and a wedge adapted to be driven between a holding lug and the shoulder to shift the member laterally with respect to the plate.

5. Welding apparatus, including: a plate apertured to receive an apertured holding mg on a member to be welded to another member; a wedge adapted to be driven through said aperture in saidholding lug to draw said member against said plate; a shoulder on said plate adjacent said aperture; a wedge adapted to be driven between said holding"lug and said shoulder to shift said member laterally with respect to said plate when said member is drawn against said plate; and means for attaching said plate to said other member.

CLARENCE W. HINES.