US2439725A

US2439725A - Press assembly

Info

Publication number: US2439725A
Application number: US629466A
Authority: US
Inventors: Robert P Frost
Original assignee: Individual
Current assignee: Individual
Priority date: 1945-11-19
Filing date: 1945-11-19
Publication date: 1948-04-13
Anticipated expiration: 1965-04-13

Description

the press.

Patented Apr. 13,1948

UNITED smr ES PATENT OFFICE PREssnss MBI-m Robert? Frosnlt'eddlng; Calif;

- AppllcatlonNovember 19, 1945-; Serial No; 629366 SCIaims. (o1; 100;;70

11 A i This invention-relates to a general utility press for machine shop use orthe like, and-in particular. representsimprovements ever the press shown S. Patent No. 2,387,839, dated October 30, 1945.

One object of this invention is to provide a press which includes, in combinationwith an up standing frame having a-worksupporting bed and a presser head unit above the bed, anovel trans= versely adjustable mount attaching the presser: head unit to the top portion of the frame for adjustment of said unitiromside to side of the press above the work supporting bed.

Another object of" therinvention-is toincorporate, in thepress, a presser headunitwhich includes a work :engaging head arranged-for initial adjustment towardthe workby ascrew neck, andsubsequent forceful. work engagement by ahydraulic jack;

A further object of the inventionvis to provide improved means for vertically adl'ustably mounting the work supporting bed "on them)- standing main frame.

A-furthe-r object of the invention is to produce asimple and inexpensive press-assembly, and yet one which will be exceedingly effective for the purpose for which it is designed.

These objects I accomplish by meanso'f' such structure and relative arrangement of. parts as will-fully appear by a perusal of the. following speciflcationiand claims.

In thedrawings similar characters of reference indicate corresponding parts Lin-the several views:

Figure 1 is-a side elevation of the press;

Figure 2 is an end elevation of the press.

Figure 3 is a cross section taken onilin'e 3"=-3 of Fig; 1; the jack being"orriitted.

Referringnow more particularlyt'o the chare actors of referenceo'n the' drawingss the press comprises a base i adaptedto'be secured to, supported by, the floor,. and: a; pair of relatively widely spaced end posts:- 2 'arefixed in conn'e ction withrand upstan'd from the base i Ea'cli'of the end postsacomprises a pair: of fiat platens 'd is' posed in-spaced but: parallel :facing relation, with said: plates set'z-edgewise relative to the ends: of The plates 3i are suitablyconnected together-adjacent their: upper and lower ends; as at 4 and 5; respectively;

,=At their upper 'ends theposts 2 are'connecte'd by a rigid horizontal to beam 6 which is ofh beam confi'guration, with the flanges of'saidb'eam disposed horizontally.

A transversely adjustable mount; indicated:

top beamMS in the'mannerwhichl'iereinaifter appears in detail andsupportsa presser-head unit 8;

Thestransversely adjustable mount 1 comprises a pair of facing, transversely spaced fiat end plates 9 notched at their upper ends; asat III, for the substantially symmetrical reception: of the lower flange portionwof the top beam 6'. On opposite sides of the top beam 6, and adjacent the upper ends of said end plates 9, the latter are connected by cross-straps l 1., Angle irons l2 are attached-to the inner face of each of the crossstraps l1 and projectinwardly in=overhanging relation to the corresponding lower flanges l3 of-thetop beam L6. The cross-straps ll-are canted laterallyroutwardlytof a certain degree so that the angle irons l2 form what may be termed lip-flanges I 4- disp'osed: alongand parallel to the top surfaces of the beam flanges l3.

Adjustment screws. l5 are threaded through the lip flanges I4 and-abut= against the top sur faces ofsaid flanges I35 It will thus beseen that whenthe adjustment screws l5'are tightmad; that the mount 1 cannot beshifted along the top beam 6; for thereasonth'at the end plates are drawn upwardly into-tight engagement-l with the bottom of said top beam. However, upon loosening of th'eadju'stme'nt screws the mount 1 may be shifted from side: to side of the press and disposed in any selective position thereb'e tween.

The pr'esser' head 'unit'8 includes guide rods I 6 fixed-on and'upstanding from the corners the'reof, and said guide rodsslidably project'through guide collars 'l I "fixed on the "end ortions of the plates 9; and which end portions extend laterally outwardly of the top beam 6. Tens-ion or pull back springs: l8 co'nne'ct between th end plates 9- on=the inside of the mount T and the presser head unit 8; there-being a pair o1 said springs corresponding to each endplate :9; as shown. The springsl8'norma1lymaintain the. presser head unitina raised portion, but yieldable for guided downward movement; theguid-ing beingaccompushed through the. medium or the guide 1 rods wandtguidezcol-lars ll:

The presser' head: unit includes a depending screwnecle 49 having awork engagihgxheadfill on the lower-'end'thereot, said head havingan opensembly includes a work suppor'ting bed, indicated generallyat 21-, 'andlwhichb'ed comprises an eiongated open 'rectangular frame made upbr'siue beams 22 which extend at itsendsacross and beyond the posts-11 laterally outwardly "thereof,

and cross or end beams 23 which connect said side beams 22 inwardly of said posts 2. The side beams 22, as well as the cross or end beams 23, are formed of inwardly facing channel iron so that the upper flanges thereof form an effective work support. At the ends the work supporting bed 2! includes bail-like handles 24 which are used to facilitate raising or lowering of said bed between selected positions of vertical adjustment.

The work supporting bed 2| is normally maintained in a selected position of vertical adjustment as follows:

Corresponding plates 3 which comprise each of the posts 2 are formed with transversely alined, outwardly opening notches 25 disposed in equally spaced relation, vertically.

The corresponding end portions of'the side beams 22 are formed with matching L-slots 26,

through and between which a cross pin 21 extends, saidcross pins normally seating in corresponding ones of the notches 25 of the end posts 2. Other cross pins 28, corresponding to the cross pins 21, are normally disposed in the next lowermost notches 25 and include stop blocks 29 on which the bed 2! rests;

adjacent cross pins

21 and 28 being fixedly connected together by a web 30, so that said pins can only be moved together, i. e. as a unit.

When it is desired to vertically adjust the work supporting bed 2|, the same is' lifted at the ends by the bail-like handle 24 until the cross pins 21 move into the bottom portion of the L-slots 26. Thereafter the pins 2! and 28 are shifted out of the notches 25 to the new position of adjustment, and the parts reassembled to support the work bed 2 l at the selected position. 7

When the work bed 2| is set in the selected position the work W is seated upon the bed 2! and the screw neck l9 run down until the head 20 is in' approximately engagement with the work.

Thereafter a hydraulic jack 3| disposed between the bottom of the top beam 6 and the top of the presser head unit 8 is actuated, whereby to cause forceful lowerin of said presser head unit and the work engaging head 20, which effects the pressing operation.

From the foregoing description it will be readily seen that there has been produced such a device as substantially fulfills the objects of the invention as set forth herein.

While this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations therefrom may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.

Having thus described the invention, the following is claimed as new and useful, and upon which Letters Patent are desired:

1. A press comprising an upstanding frame including a top beam, a work supporting bed mounted on the frame below the top beam, a work engaging presser head unit disposed between the top beam and the work supporting bed, a mount for said presser head unit, the head unit being arranged in connection with the mount for guided vertical movement, means operative to cause forceful downward movement of the head unit, and means securing said mount on the top beam in a normally fixed position but for adjustment therealong; the head unit moving means comprising a jack engaged between said head unit and the top beam in any position of adjustment of the mount.

, 2. A press comprising an. upstanding frame in eluding a top beam, a work supporting bed mounted on the frame below the top beam, at work engaging presser head unit disposed between the top beam and the work supporting bed, a mount for said presser head unit, the head unit being arranged in connection with the mount for guided vertical movement, means operative to cause forceful downward movement of the head unit, and means securing said mount on the top beam in a normally, fixed position butfforv adjustment therealong; the top beam being an I-beam with i the flanges disposed horizontally, said mount ineluding lip flanges overhanging the bottom flanges of the I-beam.

3. A press comprising an upstanding frame including a top beam, a work supporting bed mounted on the frame below the top beam, a work engaging presser head unit disposed between the top beam and the work supporting bed, a mount for said, presser head unit, the head unit being arranged in connection with the mount for guided vertical movement, means operative to cause forceful downward movement of the head unit,

. and means securing said mount on the top beam in a normally fixed position but for adjustment therealong; the top beam being an I-beam with the flanges disposed horizontally, and said mount including lip flanges overhanging the bottom flanges of the I-beam, rigid members disposed in normally engaged relation to the bottom of the I-beam, and screws threaded through said lip flanges and normally bearing against the top of said bottom flanges.

4 A press comprising an upstanding frame including a top beam, a work supporting bed mounted on the frame below the top beam, a; work engaging presser head unit disposed between the top beam and the work supporting bed, a mount for said head unit secured to the top beam in a normally fixed position but adjustable therealong, the head unit being arranged for guided vertical movement relative to the mount, and means operative to cause forceful downward movement of the head unit; said mount including a pair of spaced end members secured together in rigid, unitary relation, and means normally but releasably cl'amping'said end members against the top beam from below.

5. A press as in claim 4 in which the top beamis an I-beam with the flanges horizontal; said clamping means comprising lip flanges fixed in connection with the end members and overhanging the bottom flanges of the I-beam from opposite sides, and screws threaded through the lip flanges and normally bearing on top of said bottom flanges.

6. A press comprising an upstanding frame including a top beam, a work supporting bed mounted on the frame below the top beam, a work engaging presser head unit disposed between the top beam and the work supporting bed, a mount for said head unit secured to the top beam in a normally fixed position but adjustable therealong, the head unit being arranged for guided .vertical movement relative to the mount,

and means operative to cause forceful downward and screws threaded through the lip flanges and therealong, the head unit being arranged for' guided vertical movement relative to the mount, and means operative to cause forceful downward movement of the head unit; said mount including a pair of upstanding, spaced but facing end plates disposed under and normally abutting the top beam from below, the latter being an I- beam with the flanges horizontal, rigid cross straps connecting the plates on opposite sides at the top, lip flanges secured to said cross straps and overhanging the bottom flanges of the I- beam, screws threaded through the lip flanges and normally bearing on top of said bottom flanges, and upstanding guide rods on the head unit mounted in connection with the plates in vertically slidable relation.

8. A press as in claim '7, including pull back springs connected between the head unit and said mount independent of the top beam; and said means for operating the head unit comprising a jack engaged between the head unit and top beam in any position of adjustment of said mount along the top beam.

ROBERT P. FROST.

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

UNITED STATES PATENTS Number Name Date 1,646,510 Weaver Oct. 25, 1927 1,755,403 Manley Apr. 22, 1930 1,758,451 Manley May 13, 1930 1,977,423 Blazek et al. Oct. 16, 1934 2,387,839 Frost Oct. 30, 1945 2,417,697 Loomis Mar. 18, 1947