US1439370A

US1439370A - Metal-bur filer

Info

Publication number: US1439370A
Application number: US413305A
Authority: US
Inventors: Louis A Lambert
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-09-28
Filing date: 1920-09-28
Publication date: 1922-12-19
Anticipated expiration: 1939-12-19

Description

Dec. 19 1922. 1,439,370

' L. A. LAMBERT.

METAL BUR FILER. FILED sEPr. 28. 920. 2 SHEETS-SHEET I @Montags 1,439,37e PATENT orifice, A5

IiOUIS A. LAMBERT, OF ROME, NEW YORK.

METAL-'BUR FILER.

Application ined september 2s, 192e. semina. 413,305.

To all fr0/Lem t may concern:

Be it4 known that 1, Louis' A. LAMBERT, a

citizen or' Canada, and a residen-t ofthe United States, resicing atRom'e, in the county of Oneida, State of New York, have invented certain new and useful' Improvements in Metal-Bur Filers; and 1 do hereby declare the following to'be a full, clear, and exact description ol the invention, such as will en- 4able others 4skilled i'n the' art to which it appertaiiis to make and use the same.

r1`h1s invention relates to metal smoothing or bur tiling machines, and ainis primarily to provide a device of comparatively `simple construction and ready adjust-ment for triniining the raw or burred edges of metal strips lat'ter the latter have been cut inthe sawing operation; a machine obviating the tedious work heretofore performed manually.

A further object of the invention is to pro-vide a machine or the character stated whichis `constructed in such manner as to be adaptable to metal strips ot'various widths and thicknesses, being equipped with means of an improved nature Alor setting or maintaining` the cutting oi? smoothing edges in proper position. l

A. still 'further object oit the invention is to provvide means in Connection with power operatedmetal strip feeding mechanism for trimming the edges of the metal carried through the machine, the devicebeing featured by means et an limproved. nature for properlyaligiiing the cutters with the power feediiioV mechanism, whereby distortion ,ot the metal strips is obviated and danger of the lmachinery becoming jammed is overcome.-

A still further Objectis to provide cutting or scrapingmeans of such constructioil that the smoothing edges thereof, while performing their functions properly in operating upon the meta-l, are at all times protected and undue pressures upon the same are overcome.

1V ith these objects iii View, together with others which will appear as the description proceeds, ,the invention consists iii the novel co'iistructioin combination, and arrangement of parts,'all as will be described more fully y hereinafter, illustra-ted in the drawing, and

particularly pointed out in the claims.

1n the drawing: i

Figure 1 is a front elevation ofy a metal smoothing or filing machine constructed in accordance with the invention,

Figure 2 i's a vertical sectional view upon line 2*--2 oli" Figure 1,

Figure 3 is a top plan view of the iinproved inachine,

F'gure 4 is adetallview of one vof 'the cutters, and

Iiifgi'i're 5 is a detail view of the rea-r plate of the machine and showing the arrangement of the wiper thereon.

In' carrying out the invention, the irnproved mechanism ifs associated with the drawing rolls of any approved type 'or construction for advancing the metal 'strips to be filed. 1n thepresen't instance the upper and lower rolls 6 and 7 respectively are arranged in the housing 8 constituting the body of the machine. The upper rolll is taken urged toward thel lower roll by means of the expansion springs 9;- the latter bearing' at their lower ends upon the vertical iliioving bearing lolo-ck 10 of the upper roller, and

said springs engage at theirv upper ends against the sleeves 11 carried by the tlireaded stems 12 v constituting adjusting members( The journals of the rollersiiiay be intergeared asat 13, and motion isimparted' to one of the rolls through the instrumentality o'the belt wheel or pulley 14.

The forward end of the body is providedwith a vertically disposed wall or plate 15, liavii'ig'a vcentral aperture 16 thro-ugh which metal strips pass before being engaged by and adjustable Scrapers are arranged upon the said frameL so as to be vadjustable toward or away from each other and adj aceiit` to' the said opening in the frame. These cutters are adaptedto engage the rough edges of the metal strip asit-A is drawn into the body 'or' the machine by the rolls heretofore described.

Each of the scraping members comprises a blade land a guard 2Q. A blade is formed of suitable iiietal, preifeiablyof rectangular formation, and is provided at one end with scraping edges 23. In the present instance these edges are formed by making a notch of substantially V-sliape in the end of the blade, the interior faces of the l-notch being beveled away so as to provide straight sharp scraping edges next to the exterior surfaces of the blades. Each blade is provided in its exterior tace with a central longitudinal rib 24, the edges ot which are parallel ywith the lateral edges ot the blade. his rib extends snugly into a recess or channel of corresponding shape and size in the inner it'ace ot the guard 22. rllhe guard is preferably coextensive with the blade, and is provided with a V-notch at one end corresponding to the similarly shaped notch in the blade and having its walls disposed at substantially the same angle. The guard is provided with a longitudinally disposed slot, through which extends a screw or bolt 25, the inner end of the bolt being threaded into the blade. By this construction the guard may be adjusted longitudinally ot the blade so as to dispose the inner faces to the inclined walls ot." its notch properly with respect to the scraping` edges of the blade, and when such adjustment has been made the plate and guard are firmly held against relative movement by tightening the bolt rEhe most beneicial results are obtained by adjusting the guard so that the walls ot its notch only expose a very narrow portion of the cutting edge ot the blade, and it is obvious, therefore, that in addition to reinforcing and protecting the cutting edges of the blade, the guard operates as a guide tor the metal strip moving into the machine.

The supporting means for the cutters7 in the present instance, includes a guide or trackway indicated at 26, the latter being disposed transversely upon the exterior or" trame 18 and substantially in alignment with the lower edge of the opening in the said frame through which the metal strip passes. This guide or trackway receives and supports the lower longitudinal edge oit each of the blades. The upper longitudinal edge ot each blade is beveled as shown, and blocks 27 having correspondingly inclined lower edges are arranged upon the frame in substantial alignment with the upper edge of the strip receiving opening in the latter; the said blocks overlying the adjacent edges of the blades and acting as guides. These blocks are adjustable toward and away from the frame 18, so that the cutters may be moved freely within the guides when the blocks are loosened, and when the blocks are clamped lirmly down upon the supporting trame, the overhanging edges ot the blocks will cause the upper edges ot the blades to be firmly clamped against the tace ot the frame, whereby movement of the cutters will be prevented. The cla nping means for these blocks, in the present instance, comprise screws or bolts indicated at 28.

The upper edges ot the blocks 27 are beveled inwardly toward the tace ot the trame, and engage the correspondingly inclined lower tace of strip 29 secured to the tace ot the frame. By this construction it is obvious that when the screws or bolts 2S are tightenend, the blocks 27 will be caused to wedge between the upper edges of the blades and the lower edge of strip 29.

ln order that the surface of a strip will` be cleaned ot' metal dust after passing through the scraper, a wiper 30 is provided. This-wiper includes a plate 3l of suitable length, yieldably held by spring arms 82 upon the rear face oic the front plate l5 ot the machine. The lower tace of the plate 3l is provided with a wiper pad 38, Jformed ot any suitable material. The arms 32 maintain the lower portion ot the wiper member in such position that it will rest upon a strip ot metal passing into the machine and toward the rolls. rlhis action ot the wiper will tree the strip ot' any dirt, grit, or metal particles.

ln operation, the blocks 27 are loosened so that the blades may be 'freely moved within their guides. The blades are set a distance apart sufficient to permit the metal strip to pass between the opposed V-notches in the blades, with the scraping edges of the notched portions barely touching the longitudinal edges ot the strip. vl/*hen this adj ustment has been made, thebolts or screws 2S are tightened so as to firmly clamp the blades in position. lt will be understood, oli course, that prior to operation of the machine the guards 22 will have been adjusted upon their respective blades as has been before mentioned. he metal strip is passed into the machine until the forward end thereof passes between the rolls 6 and 7, and rotation ot these rolls in the manner described will cause the strip to be passed through the body oit' the machine and out at the rear thereof. Adjustment of the screw 19 will cause the blade carrying frame to be raised and lowered as the case requires, and these adjustments may be minutely governed bythe means employed.

By making the cutting edges orp these Scrapers in the torni cii if-notches, it is obvious that metal strips or plates ot various gauges may be trimmed in the machine without the requirement oi specially constructed cut-ters.

llVhile the jforegoing is a description of the preferred embodiment ot the invention, it will be understood, that the invention is not necessarily restricted thereto as various changes in the details ot construction and arrangement ot parts may be resorted to without departing 'from the spirit ot the invention as dened by the claims.

That I claim is: y

-l. In a metal smoothing machine, a body, a frame on said body having an opening to receive a travelling strip or' metal, a trackway on said frame nearthelower edge of said opening, blocks near the upper edge of said opening adjustable toward and away from said frame, Scrapers resting in said traclrway and slidable toward and away from said opening', and an overhanging portion on each of said blocks to engage ovel the upper edges of said scrapers and to engage the edges of the latter.

2. In a metal smoothing machine, a frame through which a metal strip passes, guides upon said frame, blades'arranged on said guides and adapted to move toward and away from the edges of the strip, 4the edges oil? said blades beingbeveled, blocks constituting' one of said guides and having beveled edges overlying the adjacent-'edges of the blade, a strip having a beveled edge and aga-inst which 'the upper edges of the block engage, and screws passing` through said blocks and into said frame.

3. In a metal smoothing machine, a body, metal drawing rolls in said body, a plate at one end of said body having. an opening through which a strip of metal passes, a

frame adjustably mounted upon said plate, the said frame having an opening to align with the openingin said plate, Scrapers carried by said frame, a screw on said plate, ak

nut on the frame to receive said screw, whereby rotation of the 'screw will control the movement oic the iframe, and a wiper yieldably supported by the plate between the latter and the rolls and adaptedto press upon the metal strip passing 'through the plate.

ln a cutter for metal smoothing machines, a blade having a if-notch in the end thereof, and walls of said notch beinfrsharpened to provide scraping edges, a rib eX- tending centrally and longitudinally of said plate and upon the outer 'face thereof, a

guard having a longitudinal 'recess in one face to receive said rib, one end of said gua-rd having a il-notch corresponding to the notch in said plate, the said gne-.rd having a longitudinalslot, 'and a screw member extending through said slot and into said plate. ln testimony whereof, l alix my signature in the presence of two witnesses.

LOUlS LAlilBER-'D Witnesses JAY l). NOBLE, loi-1N T. HUMFHREY.