US1303028A - George henry william cashmobe - Google Patents

Description

G. H. W. CASHMORE.

LEWIS GUN MAGAZINE. v APPLICATIQN FILED FEB- 5. I918. 1,303,028. Patented May 6, 1919.

m we, 114M44 ATTORNEY To aZl whom it may concern: i 4 1 l -;;Be it knownthat I, GEORGE HENRY W11,-

LIAM ,OASHMORE, a subject of the King of Great Britain and Ireland, and residing at 12, England, have invented certain new and J useful Improvements in Lewis-(run Magation.

Thisinvention relates to Lewis gun maga- Zines; 7

Usually such magazinesare formed with indented walls or with plain cylindrical walls furnished with notches or projections adapted. to engage with the pawl or other feeding device upon the gun.

*zThe present invention has for its object to devise improvements in the construction of such'magazinesi which will result in a simplification of manufacture and cheapening the co st thereof, and will at the same time enable a more positive feed of the magazine'to be'obtained than is the case with such devices as hitherto adopted.

- The invention consists in a machine gun magazineof the type referred to comprising a-drum with a plain cylindrical wall having a series of slots or openings cut or formed ithereinso as to pierce the wall completely and: adapted to engage the pawl or other feeding device upon the gun.

e accompanying drawings illustrate one form of machine gun magazine in accordance with the invention- Figure 1 being a sectional elevation, "Fig.2 an underneath plan showing the drum only in Fig. 1, while 3, 4, 5 and 6 are views illustrating 'detail. I.

I carrying my invention into effect in ne convenientmanner I form my improved fagazine somewhat after-the usual manner with a, fixed center block a and a rotary drum 1), but instead of forming the latter as isl-usual with a corrugated or indented wall for engaging the pawls or other feeding' devicesupon the gun, I form the same witli afplain cylindrical wall a in which I cuter-otherwise form a series of slots or openings dwhich may or may not be openended; as shown. and which are adapted to engage the feeding device or devices. .By .thisi'means. I not only simplify and cheapen the cost of manufacture byv eliminating the ofjcorrugatingor indenting the drum fidtlfe eest of maintenance of the tools nec- EWIS-G N MAGAZINE.

Specification of Letters Patent I:

.24: Wontner road, Balham, London, SQ W.

zines, of which the following is a specifica- STATES AT OFFECEw GEORGE HENRY WILLIAM CASHMORE, oE LONDON, EN LAND;

Patented Ma 6, 1919.

' Application filed Februar 's, ielsifseiial 1e. 215,52e.

essary for this purpose, but I also obtain a more positive feed for the drum than'can be obtained with the usual corrugations or indentations, at the same time eliminating the tendency to get out of order due to wear, which is exhibited in so marked a degree in magazines as hitherto constructed.

When required on account of the depth of the cylindrical wall or for other reasons, I stay the wall 0 to the disk portion 6 of the drum by means of stays or struts f which are conveniently formed from flat strips by dishing the same, or stamping or otherwise molding or fashioning them into tubular or semi-tubular form, but having plain ended portions 9 bent at an angleto facilitate the riveting of the same to the disk and wall respectively.

The usual driving pins h are provided in the magazine and these may be utilized for riveting the stays to the disk portion e by passing a reduced or necked portion at each end of the driving pin through the upper fiat portion of each stay and through an annular or other plate 2' upon the interior of the disk portion, and subsequently riveting each pin on the outside of the disk. This arrangement besides making for simplicity and strength possesses the important advantages as compared with known forms of magazine that any defective driving pin may be readily removed and replaced by a fresh onewithout in any way interfering with the structure of the magazine, whereas in existing devices should it be required to replace one pin, the whole of the magazine has to be dismantled and all of the driving pins removed to enable this to be done.

a As the outer cylindrical wall of the magazine is plain, it becomesnecessary to provide some means for guiding and retaining the heads of the cartridges in position in the magazine, and for this. purpose I rivet or otherwise secure upon the inner wall. of the magazine and between the feed slots or openings (1, guides which are shown in detail in Figs. 3-6, each guide being formed from an integral plate or strip of metal and being provided with the turned over or flanged edges Z which serve to retain and guide the flanged ends of the cartridges.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is 1. A' machine 11 magazine of the t e referred to comprising a drum having a islr formed with a, iiiniibei'bfbpemenHed portion and a phin qylindrica i l A n. v

' 163s; ide gf thddiskportion rof the'drumfand @t d nomnnesubshe l y. as described-f claim Lp -qvidedwith a series ef guideskfor disk and Wall respectively, ggbgta nyia lly as described. T

m chi egu mag zin a la me in name to thiSspecificafiion, la m; -j. l ving plu a ity of gu i:q1ing; pins

Images