US1425591A - Castellated nut - Google Patents

Description

F. 0. JAQU ES, 18- I CASTELLATED NUT.

APPLICATION FILED MAY I2, I919.

,425591 PatentedAug. 15, 1922.

I INVEN TUE Ara-1:21am": Y I

FERNANDO osean Jeeves. or PROVIDENCE, sirens re a ns, .cssrenon or own- HALF 'IO HAROLD oarnwnrn PECKHAM, or .onansron, nnennrsnann.

CASTELLATEID' NUT.

Application filed May 12,

To ((7.1 z/r/zom mag, comer Be. it known that I, ll 1 oo Oscar: JAQUES, Jr. a citizen of the United States, residing at Providence, in the county not Providence and State of Rhode Island, have invented a new and useful Improvement in Castellated Nuts, of which the following is a specification.

My invention is an improvement in castellated nuts, reference being had to my ap plication for United States Patent on method of making my improved castellated nuts, filed Januar r 9, 1919, Serial No. 270,- 420 to which this is a companion application.

In the usual previous construction of (ZZIStQllittGtl nuts, the nuts are machined out of bar metal such as a low steel. The nuts with the castellations thereon are only as strong and durable as the bar metal from which they are made and fractures and other faults in the bar metal are reproduced in the nuts, therefore, the nuts can not always be depended on for strength also there is a percentage of seconds thrown out, where the imperfections can be seen. These machined nuts are also comparatively costly to make, they are rough in finish and require polishing for electro plating or for other reasons.

The object of my invention is to improve the construction and reduce the cost of castellated nuts, whereby all of the faults in the old form of machined castellated nuts, as enumerated above, are eliminated and a stronger, more durable, perfect and cheaper castellated nut produced, than has hereto fore been done.

My invention consists in the peculiar and novel construction of a castellated nut in which the metal forming the body and castellations is compressed and condensed by the castellated nut being formed up and compressed in dies from a sheet metal blank having radial arms which form the castellations on the nut and in which is a predetermined greater superficial amount of metal than there is in the completed nut, said castellated nut having a strong, durable and uniform condensed structure and finished surface, as will be more fully set forth hereinafter and claimed.

To those skilled in the art to which my invention has reference, I will now describe how my improved castellated nut is made.

Figure 1 is a face view 01": the metal blank cut out "from sheet metal, showing radial Specification of Letters Patent,

1919. Serial No. 256,560.

arms on the blank which forth. the castellations of the completed (:astellated nut.

Figure 2 is an edge view of the blank.

Figure 3 is vertical sectional view through dies which cup the blank.

Figure 4 is a vertical sectional view through dies which compress the sheet metal cup, shown in Figure 3, into a hexagonal shaped nut blank.

Figure 5 is a vertical sectional view through dies which punch out the bottom of the nut blank.

Figure 6 is a. side view of the lower end of the upper die member, shown in Figure 4-, for forming the nut blank.

Figure 7 is a castellated end view of my improved castellated nut, and

Figure 8 is a sectional view through the castellated nut taken on line 8.8 of Figure 7. i

In the drawing 9 indicates a sheet metal blankhaving a flat body portion 10 from which extend fiat radial arms 11.11. 12 a lower fixed die member having a cylindrical cavity 13 and a bottom hole 14;. 15 an upper die member shaped to fit in the cavity 13 and having a lower end 16, the

lower and upper die members 12 and 15 being shaped to form the blank 9 into a cylindrical cup 17 having a closed bottom 18 and an open eastellated end, as shown in Figure 3, said cup 17 having a greater depth than the height of the completed castellated nut. 19 a lower die member having a cavity 20 shaped to form the outside or the nut blank and a closed bottom 21. 22 an upper die member shaped to lit in the cavity 20 and having the portion 23 shaped to "form the castellations on the nut out of the arms on the blank, and the end 2-1 shaped to form the inside of the nut blank, as shown in Figures 4 and 6. 25 a compressed nut blank having the closed bottom 18 and open castellated end, as shown in Figure 4-. 26 a lower die member having a cavity 27 shaped to receive the nut blank 25, and a central bottom' hole 28. 29 an upper die member having the punch end 30 for punching out the bottom 18 of the nut blank 25, as shown in Figure 5, and 31 the completed castellated nut having the castellations 32.32 and the central screwthreaded hole 33 as shown in Figures and 8.

A blank 9 having a flat body 10 and radial arms 11.11 is out out of sheet metal by comparatively deep cylindrical euphaving an open eastellated end, formed from the arms on the blank. The cup blank is then placed in suitable nutblank forming dies and the cup compressed into a caste-Hated nut blank having a closed end. The nut blank is then placed in suitable punching dies and the closed bottom ofthe nut blank punched out. The nut blank is then internally sere v tlnreaded, thereby completing the cestellatecl nut. i

My improved eastellated nut made from a lated nut has a condensed uni term structure,

it is stronger and more durable and having a hard smooth outer surface, it vwill wear longer and is rust resisting, and this hard smooth surface covers the entire outer S1117-- if'a-ce of the nut and its eastellation.

Having thus described my invention 1. claim as new i A nut blank. having eastellations and forn'ied of sheet metal compressed. and havingu central hole and it Web extending across the central hole. 7

In testimony whereof, name to this specification.

nnnuanno osean menus, J12.

I have signed my

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