US1579027A - Process for the manufacture of tools or implements - Google Patents

Description

A. PAILLONCY PROCESS FOR THE MANUFACTURE "OF TOOLS AND IMPLEMENTS Filed June 12, 1924 atented Mar. 30, 1926 rnocnss lion THE menu-recruits or; '.ro'oi;:-if0ii narnniannrs ngmn rnj :eaILnoisc or CHENECIERE, I I

j Application filc l Ju'ne m, 1924 Serial 165,713,623.

To all whom it may concern:

Be itknown that I, ARMANI) PAILLoNoY,- a citizen of the Republic of France, residing at Cheneciere, Cote dOr, France,-have -1nvented a certain new ancl useful Improved Process for the Manufacture of Tools or Implements, of which the following is a SPGClfi cation.

This invention relates to a process for the manufacture of tools or implements whose handles are inserted in closed sockets. allows stronger and lighter tools to be obtained at a much lower cost; a

Hitherto the process usually adopted cone sists of soldering a cut piece which necessig tates forging, moulding and polishing, and produces tools which are rather heavy for their s1ze.

In the process forming the subject of the present invention, the blank, after two simple operations and after rolling, is ready for stamping which takes place in a single op- V eration.

A slight polishing is suflicient to obtain the finest polish. Moreover, through the possibility of using hard steels, the tools can be made considerably lighter, while increasing their strength.

The process wi ence to the accompanying drawing which shows the parts formed in the various operations.

Figure 1 represents a composite View in plan, section and side elevation of a perforated blank or mass of metal illustrating the intitial step of the process invention of this application.

Figure 2 is a side elevation of the'mass after it has been rolled, subsequent to pierc s;

Fi meta as shown in Figure 2; v

- Figure 4 is a plan and sectional view of V the blank shown in Figure 3 after the blank has been trimmed;

Figure 5 is a plan view of one of the tools when out to proper size from the blank shown in Figure 4; and

Figure 6 is a plan and sectional view of' ance, with thesize of the tools.

11 be explained with refe ure 3 is a plan view of the body of It is then delivered" to" a pressing machine vided exactly at the centre ofits thickness under a pres s to niakeit absolutelystraight.

witlraslmany recesses T as there ar'e toolsto Y be made. The sizes of th'eserecesses and their respective po-sitions'wlll vary-1n accord- After the recesses T have been made, blank is again placed under the press which closes the lips formed when making the recesses (Figure 2), in order to allow the blank to-be placed between the rolls of the rolling mill.

Rolling is at once effected by ordinary processes for forming a plate whose thickness corresponds to the maximum thickness which the finished blank may have, Figure 3. i The machines employed and the method theof working are such that the metal does not require to be reheated between these operations. p i B. The plate is trimmed at the two ends at m n and '0 p and then delivered to a press for inserting tools into the sheet at each place where the preliminary piercing of the blank has formed an opening. The operation allows the'eXact positions of the perforations to be seen at the outer surface of the blank and in accordance therewith'the plate is cut in a' guillotine "into as many pieces as there are to be tools, Figure 4.

Each of such rectangular pieces is then cut by a press to the shape of the handle,

whereby thismay be exactly centred with respect to the hole pierces in thepiecei A portion of Figure 4'shows the cut. to: be effected for one tool, while a. cut out tool l with its stalk E is shown in Figure 5,.

CJ The cut pieces are then heated in a furnace to a low temperature for the pur- 1 pose of avoiding oxidation, and rolled by a train of'eccentric rollers to obtain a profile of a thickness decreasing from the shoulders to the cutting portion, and if necessary from the shoulders to the end of thestalk.

piece is thus givenits final length; the cutting being efi'ected with reference to the already cut stalk E Figure 6.1

The blank is, by these two rolling'operations, given thethickne'ss' necessary for the finished tool, and the desired position of stalk Eand hole T for allowing the socket to be rimmed to receive the handle. The rim- The c ming of the socket, the stamping to the final a I shape, as well as the tempering, may be effected with a single reheatingand at one operation. Finishing is effected by a slight polishing for whitening the surface and giving it its final appearance.

Having now particularly described and ascertained the nature ofmy said invention and in what manner the same is to be performed, I declare that what I claim is The process of manufacturing tools which.

consists in first heating a mass. of metal,

piercing the mass at opposite sides to pro-' 1 vide opposed aligned openings for forming sockets, then rolling the mass into plate form in a direction longitudinal to lines passing through said aligned openings, cutting the plate into as many blanks as there are to be tools and in each of which the part which will form the socket is centered with respect to the opening therein, cutting from each blank a tool of suhstantiallythe approximate shape desired with a tang extending within the limits of the edges of the opening, and finally reheating and rolling the out outpiece to correct size. 7

In testimony whereof I affix my signature.

PAILLONGY, ARMAND.

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