US1043541A - Apparatus for manufacturing expanded metal. - Google Patents

Description

` A H. SALMON.

APPARATUS FOR MANUFACTURING EXPANDED METAL.

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' APPLICATION FILED JUNE l5. 1912.

Patented Nov. 5, 1912.

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H. SALMON.'

APPARATUS POR MANUFACTURING BXPANDED METAL. APPLICATION I IL'ED .TUNE 15. 1912.

10043541 Patented Nov.5,1912.

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ynessw Jg ffl/vena?" .7i/3. A l v j H. SALMON. APPARATUS FOR MANUFACTURING BXPANDED METAL.

APPLICATION FILED JUNE 15. 1912.

1,043,541 Patented Nov. 5, 1912.

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w/@ZL' l it lnto parallel stripsv f of the `sheet.

- the axes of such Wheels being above and the other below the Umrnn -sTATns PATENT omiten.- f

HARRY'SALMON. or w/nsrninsriz'n.,nnsnann. Assrcrnonao .THE

,coi/transe.V LIMITED. or wnsrivrgtnsrnn..ENGLANDt APPARATUS ron MANUrAcTUnrNG nXPANnEn METAL.. l

To all whom lit may concern' 'new and useful Improvements' in Apparatus yfor lllanut'acturlng Expanded Metal, of which the following is a specification.

According to this invention the sheet is first slit in the ordinary way thus dividing connected by junctions of uncut metal. The slit sheet is then passed through rolls b v which the strips are turned in pairs inthe saine direction to-an angle to the plane of the sheet antlat the Same time holes are formed at the two edges Finally the sheet lthus prepared iseXpanded bymeans of a" pair of wheels revolving in opposite directions and provided with teeth which enter.the holes, arranged one plane of lthe l sheet.

'allel strips but it will be -ing-for driving the shows the expanded Sheet and The drawings Show a vmachine arranged to deal with a slit sheet consisting of eight parunderstood that the machine'can be readil"r adapted to `deal with anywidth or thickness of sheet. j

Figure 1 shows the slit sheet. Fig. 2 is aplan, of the rolls and wheels and Fig. 3 is a sectional elevation of Fig. Q, the gearrolls and wheels is well understood and is not shown. Figs'ft and 5 are end elevations of the expanding wheels showing the positions of the sheet at the commencement and termination of the ex pending operation. Fig. 6 is a longitudinal section-showing to a'larger scale half of each of the preparing rolls. Figs. 7 and S'are elevations of the outer and inner portions ofthe rolls (Fig. 6). Fig. -9 is a section similar to Fig. 6 on the lines 9-9, Figs. '7 andl 8. Fig. 10 is a. section of one of the teeth to a larger scale. Figs. 11 and 125ire side elevations of the cames operatinglthe teeth. Fig. l?) shows the sheet after it has passed through the preparing rolls and before it has been expanded. Fig. 14 is a section on the line 14-14, Fig. 13. Fig. 15 Fig. 16 is a section on the line 16-|16, Fig. 15.

a are the slittingrolls the details of which are well known and do not require any description. Each of the preparing rolls is built up oftour innerrolls b' l(which are Specication of Letters Patent. Application led June 15, 1912. Serial No. 703,950"` Patented Nov. 5, 1912.

l conical in forni asnd 5 at regular yintervals 4to 'receive 4the junctions fof the slit sheet) and two outer rolls d.

. edges being parallel to their axes. The e'xpanding wheels g haveteeth L projecting ,l from their side faces. These teeth are not fixed to, them but pass through them from side to side.

Il v/are springs tending to draw the heads g of the teeth toward the wheels and liz EXPANDED' METAL..

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Ii are stationary cam surfaces which force the I j teeth outward. i The drawings for simplicity I single tooth on each of the Wheels but it will ,l be understood that they have teeth all around them at regular intervals.

The method of operation is as follows I A sheet of metal is passed through the rolls a and is slitas shown at Fig, 1 being divided into parallel strips j connected by 7: and Z, there'being three junctions if: in a Irow and four junctions l. The slit sheet travels .on tow the preparing rolls and in passing through them the junctions k are received in the notches c and are not materiall;7 acted onv but the two vstrips j at the sides of these junctions are'bent by the rolls f (I upward and downward out of the plane of the sheet without being turned. The Il junctions 'Z are acted on by the conical part ot' the rolls bl and the plane of the sheet as shown at Fig. 9. The sheet thuv guide m. Fig. 3, on to the wheels g, the teeth Ilv of which enter the holes formed as above described between the `outer strips and the junctions y' the 1from the wheels' b v the. cams 12,2 and ha. When the teeth are respectively vertically above and below the axes of their wheels they come to the ends of the cams and are suddenly withdrawn by their springs thus freeing the expandcdsheet. By varying the length of the cams so that the teeth are withdrawn somewhat-sooner the amount of expansion `can be regulated.

'hat I claim ist* l. The combination of means for slitting only show a junctions are turned to an angle tol prepared passes through the teethbeing forced out away plane of the sheet \vithout"turfi'i'ng them, a"

pair of wheels revolvingin opposite directions, and teeth on the Wheels engaging with 'the outer strips.'

2. The combination-'of means for slitting a sheet of'metal, means for turning the inside strips in pairs to an angle to the plane of thesheet, means for bending the outer strips upward and' downward from the faces of ,the Wheels engaging with the outer strips.

' 3. A roll 'for preparing 'a 'slit sheet for l expanding consisting of a number of conical rolls each'provided with notches' at regular intervals around its circumference and having at each end a corrugated roll having edge parallel to its axis in combination wlth -a cooperating roll and means for operating l said rolls. '20

4. Apparatus for expanding a slit sheet of metal consisting of the combination. of a pair of wheels lying in different planes each having teeth pro]ecting from the side which faces the other wheel, springs tend- 25 ing to draw the teeth toward the Wheels and cams forcing the teeth away from the wheels.

` vHARRY SALMON.

Witnesses:

T. HARRY TILLY, J r., JAS. T. NICHOLSON.

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