US963636A

US963636A - Bending and straightening machine.

Info

Publication number: US963636A
Application number: US48349109A
Authority: US
Inventors: Julius Olson
Original assignee: HANSELL ELCOCK Co
Current assignee: HANSELL-ELCOCK Co; HANSELL ELCOCK Co
Priority date: 1909-03-15
Filing date: 1909-03-15
Publication date: 1910-07-05
Anticipated expiration: 1927-07-05

Description

J. OLSGN.

BENDING AND STRAIGHTENING MACHINE.

APPLICATION FILED MAB. 15, 1909.

Patented Ju1y5,1941o.

' 2 BHBBTS-BHBET 1.

J. uLsoN. BENDING` AND STRAIGHTENING MACHINE.

APPLICATION FILED MAB.. 15. 1909.

Patented July l5, 1910.

2 SHEETS-SHEET 2.

UNITED sTATEs PATENT oEErcE.

JULIUS OLSON, OF CHICAGO, ILLINOIS; ASSIGNOR: TOl-I-LJSJEDL-ELCOOKV COMPANY, OF CHICAGO, ILLINOIS, A CORPORASIIONv OF'ILLINOIS.-

BENDING AND STRAIGI-ITENING- MACHINE.

Specification of Letters Batent.

Application ledMarch 15, 1909iv Serial No; 483,491.

cago, Cook county, Illinois,- have inventedcertain new and useful Improvementsin Straightening and Bending Machines, of which the following is a specification.

My invention relates to straightening and are commonly bending machines which termedl in practice bulldozers, and the object thereof istoprovide a machine `of this character with simple and efficient means for regulating the blow and for following up the work with thetool as the operation of straightening and bending proceeds.-

The various features of advantage and utility in my improved machine will be app arent from thev description hereinafter given.

In the drawings, Figure 1 is a side eleva` tion of a machine embodying my invention; Fig. 2 a section onthe line 2 2 of Fig. 3; Fig. 3 a plan= view of the machine; Fig. 4 a section on the line 4 4 of Fig. 3'; and Fig. 5 a section onthe line 5-5 of Fig. 3.

The operating parts of the machine are provided with a suitable frame or bed which may be of any desired character or construction but which is here shown as a bed 1 of Ibeam and plate construction. end of the bed is mounted the driving mechanism which, so far as my invention is concerned, may be of any suitable or desirable construction but which here comprises the following elements: The power-shaft 2 of the machine, which is driven by anyI suitable primev mover, is provided with a pinion 3 meshing with a gear 4 secured to a crossshaft 5` and provided with a pinion 6. This latter' pinion in turn meshes withl a gear 7 mounted on the main shaft 8- suitably journaled on the bed of the machine. This main shaft is an eccentric shaft being provided with an eccentric 8a which is formed' intermediate its length and coperatesl with an eccentric strap 9 extending forwardly and longitudinally of themachine. This eccentric strap is pivotally connected at its forward end toa cross-head 10 movable Vin suitable guides indicated'at 11' on the upperface of" the machine bed. This cross-head is operatively connected with one ofthe members of" a block which are so constructed and re'- lated as to adjust or change the widthk of of the working tool Upon one such block as determined by the operator, inthe manner. hereinafter described. In the present-` instance and. by preference this cross-head is connected toits block member 12` by being dove-tailed therein as indicated in Figs. 1* and 2 and this block member is in turn operatively connected to its companion member 13, being connected in suitable mannerbut preferably by dove-tailing, as shown inthe same figures. These two 4block members formV a rectangular-shaped block when the same are at their-intermediate position and are provided with adjacent complementary faces, with the result thatby shifting the same longitudinally upon such faces or oblique line of division the width of the block is increased or decreased, according to the relative direction of shifting of the block members or sections. The forward block member 13 is operatively connected as by means of dove-tailing to the rearward end of a sliding or reciprocating tool holder or head 14 whose forward end receives and removably holds the working tool 15 usually employed forl the purpose.

The machine is also provided with the usual.` work-holder or bracket 16, to which the work is clamped and by which it is held in the ordinary and well-known mam ner.

As stated, my invention resides in the means for regulating the blow of the working` tool and suitable and eflicient means for following up the work with the tool, to which end the adjustable block already described isemployed. For the convenient operation of' the block members or sections by sliding or shifting them one uponv the other in the proper direction, I employ suitable means under the control of the operator, the same here consisting ofa T`shaped lever 17 arranged in horizontal position with the lever arm extending to one side of the machine within easy reach of the operator, the cross arm of such lever being operatively connected by means of links 18 and 19t-o opposite ends of the two block sections, the link 18 being connected to one end of the block section 12 and the link 19 being connected to the other block section but at the opposite end thereof. For the purpose of pivoting; and supporting this operating lever I employ a bracket 20 which is secure upony the cross-head 10 and thereby reciproca-tes with it.

Patented J uly 5, 1910.

i are Yin the relative position shown in Fig. 3 the working tool has a middle range of travel but that when thehand lever 17 is Y moved in a clockwise direction the limitsrof travel of the working tool are advanced, and the work may be followed up, inasmuch as this movement vof the hand lever so shifts the block sections that the width ofthe Vsol block will be increased. A movement of the hand lever in therop osite direction will have the contrary resu t.

By preference the work bracket 16 is movable toward and away from the reciprocating head 15 and to this end such bracket 1s arranged to slidey on the main frame or bed 1 of the machine and to be clamped in adjustedy position by means of the clampinor .bolts 21 and the plate 22. Also by prefjerence the bending blocks carried by such bracket are adjustable transversely of the machine and consequently transversely of the direction of reciprocation of the head 15, to which end the blocks 23 into which the bending tools proper `marked 24: are inserted by dovetailing or otherwise, are inthe present instance dovetailed onto the bracket yand secured or Vholder and its working tool, vof operating clamped in place by the bolts 2 5 whose heads p 25a`slide in the'transverse groove 26 in the bracket, (seeFigs. 1 and 4:).

1.' In a machine of the class described, the combination with the work bracket or suportA and the reciprocating tool head `or Y mechanism for operating the head Yincluding an interposed block made in similarsections I movable with respect to each other and in opposite directions to vary the size thereof inthe direction o f reciprocation.v

2'. In a'machine of the class described, the combination with the work bracket or support and the reciprocating tool head or holder .and its kworking tool, ofoperating mechanism kfor operatingthe head including an interposed block made in similar sections Y slidable upon each other in opposite direcveo tions to vary the Vsize thereof in the direction of. reciprocation.

3. -In amachine ofthe class described, the combination with the work bracket or support and the reciprocating tool head or holder and its working tool, of operating mechanism for operating the headf including an interposed block made in similar sections with complementary inclined meeting faces slidable upon each other to vary the size ofv 'the block in the direction of reciprocation.

4. In a machine of the class described, the combination with the work bracket or support. and the reciprocating tool head or holder and its Working tool, of operating mechanism foroperating the head including Y an interposed block made in similar sections with complementary inclined `meeting faces,V

an'dmeans for'moving such sections in oppositedirections and transversely of the direction of reciprocation to vary the size thereof longitudinally of such direction of reciprocation.

5. In a machine of the class described, the combination with the work bracket or support and the reciprocating tool head or holder and its working tool, `of operating mechanism for operating the head including an interposed block made in similar sections with complementary inclined meeting faces, and means for moving such sections in unison in opposite directions and transversely of the direction of reciprocation.

6. In a machine of the class described, the combination with the work bracket or support and the reciprocating `tool head or holder and its working tool, of operating mechanism for operating the head including an interposed block made in similar sections with complementary inclined meeting faces, and an operating lever operatively connected with said sections for moving them in unison and in opposite directions and transversely of the direction of reciprocation.

7. In a machine of the class described, the combination with the work bracket or support and the reciprocating tool head or holder and its working tool, of operating mechanism for operating the head including an interposed block made in similar sections with complementary inclined meeting faces, and a T-shaped lever operatively connected at the ends of its cross arm with opposite ends of said sections.

8. In a machine of the class described, the combination with the work bracket 0r support and the reciprocating tool head or holder and its working tool, of operating vmechanism. for Voperating the head including an interposed block made in similar sections with kcomplementary inclined `meeting' faces, a pivoted T-shaped lever, and links connecting between the ends ofthe cross arm of such lever and opposite ends of said sections.

9. In av machine of the class described, the combination with the work bracket or support and the reciprocating tool head or holder and its working tool, vof operating mechanism for operatin the head including an interposed block ma e in similar sections with complementary meeting faces which are dovetailed together, and means for moving` said sections in unison and transversely of the -direction of recprocation.

l0. In a machine of the class described7 the combination With the Work bracket or support and the reciprocating tool head or holder and its Working tool, of operating mechanism for operating the head including an interposed block made in similar sections Wth complementary meeting faces,

and also including an eccentric shaft, an 10 eccentric strap coperating` therewith, and a cross head connected at one end with the strap and at the other end With one of the block sections.

JULIUS OLSON. Witnesses:

THos. P. ODoNovAN, R. GoLDsTINE.