US1507722A

US1507722A - Plane attachment

Info

Publication number: US1507722A
Application number: US700179A
Authority: US
Inventors: Ahlen John
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-03-18
Filing date: 1924-03-18
Publication date: 1924-09-09
Anticipated expiration: 1941-09-09

Description

Sept. 9, 1924.

.1. AHLEN PLANE ATTACHMENT Filed March 18. 1924 abrozmqf Patented Sept. 9, 1924.

' JOHN .AHLEN, or:rnnsa lvonrneon cornr v PLANE ATTACHMENT.

Application fileda'z March 1a, 1924.. SeriallTo 700,119

Ta all zlglzom zltmay-concern. I Belt known that-LJO N A LEN, a citizenrofthe United States, residing at Fargo,- in..the.county=of1Cass and. State of. North -Da kfotafv have invented certain new and useful Improvements; in;- a. Plane. Attaclr ment, of which the following is a specification. I e

This invention relates toewood worki-n tools, and the primary object ofthis invention-:isto iprovide a: plane having novel meansfOrqli-ftingthe blade or; iron thereofabove the worlo upon the return movement of thep lane,thereby preventing undue wear 2 uponzthe blade and-the necessity for raising;the;whole plane above the work on-the back i stroke, thus 1 permitting the smooth operation offthe plane andwthe relieving of the user ofthe plane.- from undue exertion. V A .-fur-tl1,er; obj ect; of 5 the invention 1 is to prov-idea shoe ,carriedrby theplane in, such a,,mannerthat. theblade on; iron of the plane-"willibespaced from the work on the backstroke of-the "plane, and when the. plane is in7;"tr-position of rest, thereby: preventing injury to the blade and; the marring; of the objectupon, which the plane is laid. I

A further object of the invention is to provide a double faced shoe pivotally carried by the plane which is normally urged into an operative position, so that the same will always be in work engaging position without any attention of the user of the plane. v a

A still further object is to provide are-,

- versible pivoted shoe carried by a plane for the above described purpose, which will be durable and eflicient in use,one that will be simple and easy to manufacture, and one which can be easily associated with any type of plane.

WVith these and other objects in view, the invention consists in the novel construction, arrangement and formation of parts, as will be hereinafter more specifically described,

claimed and illustrated in the accompanying drawings, forming a part of this specification, in which:

Figure 1 is a side elevation of a plane,

partly in section, showing the improved device incorporated therewith and in position for holding thev blade or iron of the spaced from the work. v

Figure 2 is a fragmentary plan View of the plane partly in section, showing the improved device incorporated therewith.

plane Fi gnlrev 3 is, a fragmentary side elevation of thev plane partlyin section, showing the improved device incorporated. therewith,- andinan inoperativepositions I I Referring to the, drawing, whereinsimilar reference characters designate; corresponding parts throughout 1 the 1 several views, the letter A indicates aipla-nel and 'B the improved ,blade spacing device-1 therefor.

The plane Ais oftheusual on any; p113- ferred. construction. andysty le, and includes,- the; stock 5 the handles 6 and 7, blade hold ing and adjusting means 8,- and the blade or iron 9, The stock5 is providedwithuafl transversely extending ,slot:' 10, forwardly of ,the transverse center thereof, and'wpreferably directly below the b'lade holding, and: adjusting means ,8. As shown thesto'ck 5' is made ofllmetal; and is provided with the upturned side flanges 11. j v

The improved bladetraising deviceg'B-in eludes ashoelQ, which is adapted-toextend transversely of the stock 5.. This shoe; 12in:

eludes the shank 13 and theroam .platellas This plate 14 is curved. transversely as-elearings, and e extends outwardly from1the,-op.

the flanges 11. If so desired, one of the re duced ends of the pivot pin or stub shaft may be threaded into one of the openings 17, while the opposite end may be] provided with a screw head The cam 1 face 14 is adapted to normally extend through the slot 10, and the rear wall of this slot is curved as at 18, to conform'to the curvature of the active face of the cam, while the opposite wall of the slot may terminate abruptly as at 19, for forming a stop for the forward edge of the cam plate.

In order to insure that the shoe will. be normally held in an operative position, the spring 20 is provided. This spring 20 is coiled around the stub shaft or pivot pin 16 adjacent to the terminals thereof, and has its intermediate portions bearing against the shank 13 of the shoe at its terminals bearing against the stationary portion of the stock 5, as indicated by the numeral 21.

In use of the improved plane, it can be seen that upon forward or working stroke of the plane, the shoe 12 will beforced upwardly against the tension of the spring into the slot 10 and out of the way of the work. Thus permitting the ironor blade 9 to engage the work. Upon the back or return stroke of the plane, however, the shoe will ride below the lower surface of the stock of the plane and engage the face of the work,

and thus hold the active face of the blade above the work and thus prevent injury or undue wear thereon.

It can be seen that when the plane is laid upon an object, the shoe will be in operative position below the lower face of the stock 5, and thus hold the blade, or iron 9 above the object. Owing to the position of the shoe forwardly of the transverse center of the shoe, the plane will rest upon the rear edge of the stock and on the shoe 12, and thus absolutely prevent the blade from engaging the object and injuring the same. i

In case one face or edge of the cam surface s 14 of the shoe 12 becomes broken or mutilated, it is merely necessary to remove the stub shaft or pin 16 and reverse the position of the shoe in the plane and replace the pin or stub shaft 16. This will present the new or unused edge of the shoe to the work.

From the foregoing description, it can be seen that an exceptionally simple and automatic device has been provided for holding the slot, a pivot pin detac iably carried by the side walls of the stock positioned in the hinged barrel, and a spring coiled around said pivot pin and, arranged to engage the shoe and the stock. 7

2. In a plane, the combination with a stock including a sole and side walls, the sole having a transverse slot therein, and a blade, of an attachment for normally holding the blade above the work when the plane is moved in one direction and when in position of rest comprising a cam plate disposed transversely across the stock for projecting through the slot, saidplate being curved transversely, a shank formed longitudinally;

of the plate and disposed intermediate the longitudinal edges thereof,- a hinged barrel formed on the upper edge of the shank, the side walls having openings formed therein and attached in advance of said slot, and a hinged pin extending through said openings and the hinged barrel.

i JOHN AHLEN.