US382830A - Qartrid-qe- l - Google Patents

Description

(No Model.) 4

. J. H. READ.

CARTRIDGE LOADING APP ARATUS.

. Patented May 15 1888.

No. 38Z,830

-zrportscontrolledbyadjustable pressurevalves,

JOHN H. READ, OF SANFRANCSCO, GALIFORNIA.

CARTR! -GE LOADNG APPARATUS f SPECIPICATIONforhng part of Lettere Patent Ne. 382.830, daten' May 15, 1888.

` Application filed October 22, 1887.

Z'o all whom it may concerm Be it knownthat I, JOHN E. READ, of the city and coun tyofsan Francisco, State of California, have mvented an Improvement "in Cartridge-loading Apparatus; and I hereby declare the following to be' a full, clear, and exact description of the same.

My invention relates, broadly, to the classof packing-machines, andespecially to the class of machines used for packing dynamite, nitroglycerine powders or other pulverulent sub stances or material into 'cartridges or cases; and my invention consistsin-an improved and novel connection between the source of power and the phnger or ramner of the machine, said connection consisting, essentially, of a sliding cylinder connected with the plunger or rammer, and provided with a valvecontrolled port for the entrance of the air, and relief and a, piston connected with the source of power and'working within the cylinder, whereby said c'ylinder is reciprocated with gradually-dininishing length of stroke though with 2 an equal and elastic pressure, as I shall hereinafter fully describe.

The object of my invention is to provide for applying power' in machines of this class in such 'a way as to obtain an elastic connection between the source of power and the plnnger or 'ammer of the machine; to` obtain strokes, which,beginningat the same point, shall gradually diminish in' length as the cartridge shells or cases are filled, and, finally, to obtain strokes which shall produce equal pressure on the -powder or other material being packed. Referring to the accdmpanying drawings for a more complete expfahation of my invention, Figure 1 is a plan of my apparatus. Fig. 2 is a Vertical longitudi-nal section of the cylinder D. Fig. 3 is a detail cross-section showing the relief-ports and adj nstableggressur-valveg Although the prcsent'invention may be applied to any form of packingmachine in which a plu nger or ramme' is employed, I have herein illustrated-and described it in connection with the particular plunger or rammer' illustrated and described in Patent No; 299,()09, --May 20,-1884, granted to Quinan, Kimpfel 50 and Olsen.

need not describ'e or illustrate the eine;

said piston,- and its contact with the rear head 'ofithe cylihder is g radualand without jar. In

Serial No. 253.153. lNo model.)

apertures into a' corresponding -ow of shells o' cases outside of said hopper.

A is a suitable bed-frame, upon which is supported a cylinder, D, by means of a guideframe, d, the ends of which are fitted to the) bed-frame and adapted to slide back and forth 'f i thereon, so that said cylinder ni reciprocating movement. a, i E is a bar or connecting-rod Which joins the cross-head C of the parallel rods B of the m a-I' ay receive a chinewith the forward end of the'cylinder;

Near the forward end of the cyli'n'dr ismade 7:0 a port which is controlled-by' ar" nvcrztrliy=- swinging check-valve, F, and in thisend of 'the oylindcr are made also relief-ports, which are controlled bythe outwardly-;moving valves G, held to their places by a weight, or, as

here shown, by a spring, H, the center of which is fitted on a spindle, h, and its tension is adj usted by nnts h'. In the rear end of 'the cyl-' inder is fitted a pipe, I, provided with a controlling cock or valve,.''. v Within the cylinderisfitted a piston, J, the

rodj 'of which extends backwardlyin a. sui&

'able slide, j', and is connected with a pitman,

j, the other end of which is connected with the wristpin kof the crank K, or. other suit'- able source of power.

The operation ,of the mach ine is as follows:

A'e the. piston nioves back within the cylinder and' comes in' contact with its rear head, it causes the cylinder to move back a1so`, and thus through the eonnectingmod E to draw the series of parallel ramners or rods B back for the beginning of a stroke.

Th'e'object 'ofthepi e' I, provided "with the v controlling valve or cook i in the rear end of 95 the cyl'inder, is toallow the escape ofthe air which-is being forced out from behind the pisi ton, but at the same time-to wine-draw or inpe'de its escape, so that a cushion is provided for this back'ward movement of the pisten it is apinder,

. and moving no farther, the con'fined and com` pressed air'is forced out through the reliefports of vaivesG, whereupon the cylinder stops and the stroke is completed. These valves G are of course adjusted by means of their spring H, so that they will not yield until a given pressure hasbeen brought to bear upon them. In this way it will be'seen that an elas-. tic connection is obtained between the source of power and the machine, and that, though the strokesof the rods begin at the same point, theygrow shorter as' the cartridge-cases are filled, and yet auniform and equal pressure is applied at all times.

By inoreasing the pressure of the spring H on the relief-valves G the packing of. the cartridge-shells can be r'nade very dense, and by lessening the presure the packing can' be made lig t.

. til a resstance -i net which is' suflicient to open the relief-valves, when the' strokeends. Instead of the yalVecOntrOIled exit-pipo I,

a suitable buil'er may be placed on the inside 'of the cylinder for the pisten to cushion on.

. Having thus described my invention, what I claim as new, and. desire to secure by Letters Patent, is-- 1. In a Cartridge-loading or powder-packing apparatus, the connection between the 'plunger or rammer of' the apparatus and the source of power, which consists of a sliding cylinder connected with the plunger or rammer and a reci procating pisten connected with the source of 'power and Operating within the cylinder to move it hack with itself in one' direction and forward through the interposition of the air in front of the piston, substantially as herein described. 2. I`n a Cartridge-loading or powdcr-packing apparatus, the pneumatio connection for applying power, consisting of a sliding cylinder, a reciprocating pisten working the'ein and noving the 'cylinder with itself in one di- -rection and in the otherdirection by the com` pression of air, and a relief-port in the cylinder controlled by an ad j ustablc p'essurevalve, whercby the 'limit of notion of the cylinder in the lattcr direction is defined by rcgulati ng the pressure of the valve, substantially :s heroin described 3. In a cartridge-londing and powder-packing apparatns, th connection between the plunger or rannier f the apparatus and the sourceof power, wnich consists of a sliding cylinderconnectcd with the plunger (ir/ramner, a reciprocati'ng pisten connected with the source of power and Operating within the cylinder to move it back with itself in 'one direction and forward ,by compressng the air in The cyi'rhder moves with the -rods un:

esteso v front, a rrahe-controlled in'let-port for the air in front, and`a valvecontrolied relief-port for defining the forward limit of the cylinder s movement, substantially as herein described. 4. In a cartridge-loading-'or powder-packing apparatus, the connection plunger or ranner of the apparatns and the source of power, which consists of a sldng cylinder connected with the plunger or ranmer, a, reciprocati ng piston connected with the source of power and Operating within the cylinder to move it back withfi 'tsel in onedirection and forward. by cnpt, ing 'the `air in front, a valve-controlled inletlport forgfthe ai'- p relief-port conin front of the? piston, and" a'- between the trolled by en adj ustable pressure-val ve fordefining the forward 'limit of' cy1inder,'snbstantially as'herein described.

5. In a cartridge-loading and powder-pack- ;ing' apparatus, the connection between the .plungeror rammer of the apparatus and the source of power, consisting of a sliding cylinder connected with the 'plu'nger coran-imer, a reci procating pisten connected with the source ot' power and Operating within the cylinder to move it back with itself in one directionend forward by compressing the air in front, a v aive-controlled inlet-,port for the air in front of the pisten, a valve, and an adjustable spring for applying different prcssures to said valves, whereby the forward limit of the cylinder's motion is de .ned, snbstantially as he'ein described.

ing apparatus,

of power and Operating within the cylinder to draw it back with itself in one directionand inder, against which the piston comes in con tially as herein described.

ing appnretus, the' connection between the plunger or ranmer source of power, consisting of a sliding cylinreci pro'cating pisten connected with the ot' power and Operating within the cylin er to draw it back by itself in one direction and to force it forward by compressing the air in tig the air in front of the pisten, controlled by an adj ustable pressure-valve for defining the forward movement of said cylindcr, and a cushion in the rcar end of the cylinder, against which the pisten comes in contact when drawing said cylinder back, substantially as heroin described.

8. In a Cartridge-loading or powder-packing apparatus, the connection between the plunger or ranmer of source of power, consisting of a sliding cylinmovement og the relief-port with a controilings 6. In a cartridgeloading or powder-pack-' the connection between the plnnger or rammer of the apparatus and the to'force it forward by compressng the air in; front, and a cushion in the rear end of the cyldcr-connected with the plungcr or rammer, a

urcc' nos rio

tact when drawing said cyinder back, substan- 7.' In a Cartridge-'loading or powder-pack of the apparatus and the v front, a vaive-controlled lulet-port foradmita relicf-port the epparatus and the der connected with the plunger or rammer, by a cock or valve, whereby a cushion isproreciprocating piston connected with the source vided behind the pisten, substantially as herein of power and perating within the cylinder to descrbed.- V move it back with itself in one direction and j In witnes whereotj I have hereunto set my 5 forward by compressing the air in front, a hand. valve-controlled inlet-port foradmitting air in e front of the pisten, a relef-port controlled by JOHN READ' an adjustable pressurevalve for defining the witnesses: forward movementof the cylinder, and an exit- JAMES L. KING,

ro pipe from the rear of the cylinder controlled W. N. 'KEMPSTON

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