US1243731A - Side-dressing attachment for saw-filing machines. - Google Patents

Description

J. T. GOSLINE. S-IDF. BRESSING ATTACHMENT FOR SAW FILING MACHINES- APPLICATION FILED JULY'6. 1916- i g fi fi Patented 001:. 23,1917.

2 SHEETS-SHEET J. T. GOSLINE. SIDE DRESSHEG ATTACHMENT FOR SAW FILING MACHINES.

APPLICATION FILED JULY G, I916. 192 25131 a.

Patented 00, 23,1917.

2 SHEETS-SHEET 2.

" @msZa'm s i T s'rar TFFEQ$ SIDE-DRESSING ATTACHMENT FOR SAW-FILING MACHINES.

Specification of Letters Patent.

Patented Oct. 2a, 1917.;

Application filed July 6, 1916. Serial No. 107,838.

To all whom it may concern:

Be it known that 1, JOHN THOS. GosLINn, a citizen of the'United States, residing at Vancouver, in the Province of British Columbia and Dominion of Canada, have invented certain new anduseful Improvements in Side-Dressing Attachments for Saw-Filing Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an attachment for circle saw filing machines,;and the primary object of the invention is to provide an attachment, which is applicable for detach able mounting upon the slide of a saw filing machine, which is commerciallyknownas the Coval No. 55, or which may be attached to any similarsaw filing machine. An object of the invention is to provide a device of this nature, which will dress: or

filethe sides of the teeth of thesaw, making all of the teeth of uniform width. t v

. A further object of this invention is to rovide a side dressing attachment as specied which includes a, pair of pivotally mounted brace controlled jaws, and-means foradjusting the position of the outer active or operative ends of the jaws, for regulating their engagement with the sides of the teeth of a circle saw and to mount files in the outer inner faces of said jaws for dressing the sides of a circle saws teeth.

With the foregoingand other objects in View this invention consists in such novel features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawings and claimed.

I In describing the invention in. detail reference will be had'to the accompanying drawings wherein: like characters, designate like and corresponding parts throughout the several views, and inwhich Figure 1 .is a side elevation of the improvedv side dressing attachment showing the same applied.

Fig. 2 is a top planviewiof the attachment. 7

I Fig. 3 is a horizontal section having the top .or cover plate removed,

ings, 1 designates a slide which is an exten-.

sion on the originalslides of a saw filing machlne, and 2 designates the side dressing attachment as an entirety. The side dressing attachment includes a cross head structure 8. The cross head structure 3 is composed of side plates at and abottom plate 5. One of the side plates 4 is provided with a hand screw 6, which. is provided for clamp; ingengagement with the slide lfor holding the cross head at adjusted positions upon the slide. p

A plate 7 ismounted upon top of the cross head structure 2 and it is provided with upstanding sides 8 which are cut away as shown at 9. A pair of jaws 10 and 11 are pivotally connected as shown at 12 to the upper surface of the plate 7, and they extend the length of thefplate and project a short distancebeyondthe outer end of the same. The jaws 10 and 11 are provided with cut out portionsl3 formed in their inner facing surfaces, in which are placed files 14E. Clamping plates 15 are attached to the outer end of the jaws 10 and 11 by. suitable set screws 16 and theyare provided with recesses 17 whiohrecei vc the forward inner corners of the files for clamping the files securely in the recesses 13 and holding them connected to the jaws 10 and 11. Thejaws 10 and 11 have their inner edges cut away, adjacent their rear pivoted ends as shown at 19. A fiat spring 20 is positioned between the facing edges of the jaws 10 and 11 and its forward. end engages the shoulders 21' numeral 26 in Fig. 1 of the drawings will be properly engaged by the files 14. An upstanding boss 27 is formed upon the plate 7 and is provided with. a screw threaded bore 28 into which the lower end of a hand screw 29 is threaded, The hand screw 29 extends through a cover plate 30, which cover plate has its forward edges connected to the upstanding sides 8 of the plate 7 by set screws v asshown at 3L Thehand screw 29 1s propose, 7

Fingers 33 andifi are connected to the outer edges of the forward ends of the jaws 10 and 11 and extend outwardlytherefrom. The fingers 33 and 34 are preferably constructed of resilient metal and have their outer ends curved as shown at 35, to provide a rounded surface for ongaging the sides of a circle saw blade, as clearly shown in Fig. l of the-drawings. The fingers exert a tension on'the saw blade andtend to hold the edge of the same firmly as it passes through the files l iandyin alinement with-the files.

A second cover plate a0-is mounted over therear pivoted end of the jaws 10 and 11 and is attached to the rear portions of the upstanding sides 8 byset screws 41. Y

The jaws 10 and 11 are provided with cut out portions 36, which are adapted for receiving'the lug or boss 27 when the saws are in a closed position.

From the foregoing description taken in connection with the accompanying drawings, the advantages of construction and of the method of operationof the improved slide dressing attachment for saw filing machines will be readily apparent to those skilled in the art to which this invention appertains, and while in the foregoing-description, the principle of the operation of this invention has been described together with various features of construction, itis to be understood vthat certain minor features of construction, combination and arrangement of parts may be altered to suit practical conditions provided such alterations are comprehended within the scope of whatris claimed,

What is claimed is 1.- In a side dressing attachment for saw filing 7 machines, the combination with a slide, ofa cross head structure adapted for sliding movement upon said slide, means for holding said cross head structure in ;adjusted positionupon the slide, a pair of pivotally mounted jaws carried by-said cross head structure, saw teeth dressingmembers carried by the inner edges of the outer ends of said jaws, means for normally holding said jaws outward from each other, and means for moving the jawstowardeach other and for holding the same in an adjusted position.v

' 2. In a side dressing attachment for saw filing machines, the combination with a slide, of a cross head structure adapted for slidable movement upon said slide, means for holding said cross head structure in adjusted-position upon the slide, a pair of pivotally mounted jaws carried by said cross hea d structure, saw teeth dressing members carried by the inner edges of the -outer ends of saidsaw, a fiat spring positioned inter mediatesaid jaws and engaging-the j aws-for moving them outward from i each other, and means for'moving-the jawstowardeach other and for holding the same in adjusted position-. Y

8'. In a side dressing attachment for saw filingmachines, the combination; with}; a slide, of a cross head structure adapted for slidable movement upon'said slide, means for holding said cross head structure -in -ad justed position upon the-slide, a pair of pivotally mounted jaws carried by said crossheadstructure, Lmeans for adjusting the jaws toward each other, and sideteeth dressing members detachably carried by the inner edges of said jaws.

l. In a side dressing-attachment for saw filing machines, the--combination with? a slide, of a cross head structure adapted for slidable movement upon saidsli'de, means for holding said cross head structure in an adjusted positionupon the. -slide,-- apairof f pivotally mounted jaws carried by said cross head structure, means for-adjusting the jaws toward eachiother, said jaws being provided with cutout portionson their inner faces adjacent; the forward edges thereof, files positioned in said 'recesses,-- and clamping plates secured to the forward edges of said aws,- for receivingtheforward corner of-"the files for holdingthe a same in position on said jaws.

5. Ina side dressing attachment-forsaw filing machines, the combination, withan ordinary saw filing machine slide',-of across head structure slidably mounted gupon said slide, meansfor holding S&ld. CI'OSS-hQad' structure in various adjusted position-son said slide,-- a pair-of awsplvotally carried by-said cross head structure, files carried-by the outer free ends of said-jaws-and-adapted for engagement with the sidesof'thesaw teeth, and-hand screws carriedby said cross head structure andengagingsaid jaws for adjusting the position of thejaws and-hold ing them in adjusted pQsi-tion, resilient fingers attached to the outer edges of thefree i end of said jaws and extending outwardly therefrom, Said-fingers havingtheir euter ends curved for providing rounded saw engaging surfaces.

6. In a side dressing attachment for saw filing machines, the combination, with an ordinary saw filing machine slide, of across head structure slidably mounted upon said slide, means for holding said cross head structure in various adjusted positions on said slide, a pair of jaws pivotally carried by said cross head structure, files carried by the outer free ends of said jaws and adapted for engagement with the sides of the saw teeth, and hand screws carried by said cross head structure and engaging said jaws for adjusting the position of the jaws and holding them in adjusted position, resilient fin- Oopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

gers attached to the outer edges of the free end of said jaws and extending outwardly therefrom, said fingers having their outer ends curved for providing rounded saw engaging surfaces, a cover plate carried by said cross head structure, and means for clamping said cover plate in firm engage ment with the upper edges of said pivoted aws.

In testimony whereof I aflix my signature in presence of two witnesses.

JOHN THOMAS GOSLINE.

Witnesses:

R. B. ELLIS, NINA PORTER- Washington, D. G.

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