US1135010A

US1135010A - Cartridge-fuse.

Info

Publication number: US1135010A
Application number: US82758114A
Authority: US
Inventors: William Thomas Garlitz; William Rowles Gardner
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-03-27
Filing date: 1914-03-27
Publication date: 1915-04-13
Anticipated expiration: 1932-04-13

Description

- in a manner as hereinafter set forth, for

UNITED STATES PATENT onrion; f

WILLIAM enemas eanmrz AND WI LIAM nowrins GARDNER, or menses nocxs;

i PENNSYLVANIA.

'caernmonnosn.

Specification of Letters Patent.

Application filed same 2?, .91s. Serial No. 827,581.

. 1' 0 all whom it may concern. Be it known that we, WILLIAM THoMAs G'ARLITZ and VVILLIAM RowLns GARDNER,

citizens of the United States of America,- residing at McKees Rocks, in .the county of ting up a positive and rapid clamping device for the fuse link. A further object of the invention isto pro vide a cartridge fuse with means as hereinafter set forth, for simultaneously binding the fuse link with the locking of the end cap to the shell of the fuse.

A further object of the invention is to provide a refillable cartridge fuse with means,

centering, the fuse link quickly with respect to the shell and caps when refilling the fuse.

i l-further object of the invention is to provide a refillable cartridge fuse, ina manner as hereinafterreferred to, overcoming the inconvenience of contending with looseparts when-the fuse link is removed and a. new one'substituted, thus elimini'ting any possibility of losing or misplacing any of the elements of the fuse during the act of refilling.

A further object of'the invention is to pro videa refillable cartridge fuse, with means I in a manner as hereinafter set forth, for locking the cap firmly to the shell and to further permitof thequick removal of the cap when desired.

A furtherobject ofthe invention is to pro'- vide a cartridge fuse, with means in a mannerv as hereinafter set forth, for ventilating the-shell when occasion so requires.

' A further object of the invention is to provide a refillablecartridgefuse including a pair of caps carrying means for clamping the fuse link in position, the said means being perinanentlycarried by the caps when these latter are connectedto or removed frmn the shell, and the said means further constitute locks for securing the caps to the ends of the shell.

A further object of the invention is to provide a'cartridge fuse, with means for permanently holding the fuse link in position for Patented Apr. 13, 1915. l

the purpose of forming a perfect electric I contact irrespective of the contraction or ex pansion of the shell.

A further object of the invention is to pro- .vide a cartridge fuse, withmeans to overcome the causing of loose contact'between the fuse link and caps due to the shrinking" of the shell. 4

Further objects'of the invention are to provide a quick refillable cartridge fuse,

whichis simple in-its construction and ar-f rangcinent, strong, durable, eihcicnt and con veniont in its use,- readily set up, and inexpensive to manufacture. i

With the foregoing and other objects" in view, the invention consists of the novel construction, combination and arrangenient of' parts as hereinafter more specifically de scribed andillustrated in the accompanying drawings, wherein is shown an embodiment of the invention, but it is to be understood thatchanges, variations and modifications can he resorted to which come within the I scope of the cla ms hereunto appended.

in the drawings, wherein like reference characters denote corresponding. parts throughout the several views: Figure 1 is a longitudinal sectional view of a cartridge,

fuse in accordance with this invention, Fig. "2 IS a bottom plan partly broken away and partly in section, Fig. 3 is a perspective view broken away, illustrating one .end of the shell, and Fig. 4 is a transverse sectional view through one of the end caps.

Referring to the drawings in detail, 5

denotes a cylindrical shellformed of insu=v 1 lat-ion, preferably fiber, and said shell 5 near one end is provided with acircular opening 6, and projecting from each opening 6 and terminating at an end edge is a ion gitudinally extending slot 70f a width less than the diameter of its respective opening.

latter extend in opposite directions with re spect to each other.

.Mounted upon each end of the shell is a The openings 6 are arranged in longitudinal aliuen'ient, as Well as the slot 7, but these 7 one will be described, as the description of i one applies to the other. Each cap consists periphery of the shell 5, and when in such position, one end of said shell 5 abuts against A the inner face of the body portion 8. The

inner face of the body portion 8 is'recessed as at 11, to provide a seat for a purpose to be presently referred to. The body portion 8 is furthermore provided with one or more openings 12, for thepurpo'seof ventilating the shell 5, for example allowing of the escape of any gases which are generated within the shell 5. The rim 10 is provided with an opening 13, and is furthermore pro vided diametrically opposite the opening 13, with an opening 14, the latter having its wall screw threaded. The opening 13 is of greater diameter than the opening 14 and the purposes for which the said

openings

13 and 14 are intended will bepresently referred to. and projecting inwardly therefrom is a guide member which consists of a body portion 15 having one end formed with a right angular-1y disposed flange 17, which is positioncd against the seat 11 and secured to the body portion 8 of the cap through the medium of a holdfast device 18, the latter being illustrated as a screw and which has its head countersunk in the outer face of the body portion 8. The body portion 15 of the guide member has its other end formed with an upwardly projecting curved lip 19. The body portion 15 is formed with acentrally disposed opening 520 having the wall thereof threaded and the function of said opening 20 will be presently referred to.

Associated with the guide member 15' for the purpose of clamping one end of a fuse link 21 in position is a washer or supporting member 22, which opposes the guide member 15, and which is carried by a transversely extending clamping screw, the latter 1n con nection with

thethreaded openings

14 and 20 not only clamps one end of the fuse link 21 to the guide member 15, but also locks the cap'to the shell'5. The clamping screw includes a head 23 and a shank formed of two lengths of different diameters, that length of larger diameter is indicated at'24 and thatlength of smaller diameter at 25. The length of larger diameter is formedvintegi'al with the head 23 and is of less diameter than said head 23, but of such diameter as to permit the passage of such length through the slot 7. The length 2 L of the shank'of the clamping screw is plane, while the length 25 is peripherally threaded from end 'to end. At the point of mergence of thelength 25 and the length 24 of tle shank of the clamping screw; a shoulder 2 y is promounted upon the ends of the shell 5.

Carried by the body portion 8,

vided upori which is mounted the washer or supporting member 22 constituting a fuse clamp. The washer 22 loosely surrounds the length 25 of the shank. The shell 5 is provided with openings 27, which register with the openings 14, when the caps are The fuse link 21, has each end enlarged as at 28,

and which is bifurcated as at 29, to enable 'the said ends to be extended between the

members

19 and 22, as the bifurcated ends 29 provide clearances for the lengths 25 of the clamping screws when the fuse link-is positioned through the medium of the' clamping screws to the caper I When, the

clamping screws are in position to secure theclamping screws, washers,end guide members are carried with the caps, or in other words, it is not necessary to disconnect the clamping screws, washers or guide members from the caps when these latter are detached from the shell, and by such an arrangement, there is no possibility of losing'or misplacing any of the elements referred to.-

fuse link 21 to the caps, the heads 23 extend The members 19 are employed for quickly guiding or positioning the ends of the fuse link with respect to the washers 22 and clamping screws 25, and said members quickly center the fuse link longitudinally of the casing. As the connecting of the fuse link 21 longitudinally of the shell 5 is had directly with the cap, it is obvious that it will always remain in position irrespective of the shrinkage or expansion of the shell.

To remove a cap, a clamping screw is detached from engagement with thethreads of the wall of an opening 14, and shifted clear of an opening 27, such movement on the part of the clamping screw will position the head 23 clear of the opening 6, under such conditions the length 2% of the shank of the clamping screw can be passed outwardly through the slot 7, undersuch conditions the cap is, then detached from the shell. When the cap is detached from the shell, the clamping sci'ew,iwashc r and guide member are carriedwith the cap as these elements are permanently connected to the cap, Theopenings '27 are of greater diameter' than the threaded.lengths 25 of the clamping screws and the openings 6 are of greater diameter than the heads 23 of the clamping screws, and by 'such an arrangement contraction and expansion of the shell 5 is provided for. By providing the openings 6 of greater diameter than the heads 23 and'the openings 27 of greater diameter than the caps mounted upon the-ends thereof, guide threaded lengths 25 of theshanks of-the clamping screws, a slight movement of the caps can be had so that the extensions or blades 9 wil'l adjust themselves when placing them in engagement with the clips on the fuse blocks, and under such conditions making the bla'des '9 what may be termed self alining. I I

What we claim is I 1. A' cartridge fuse comprising a shell,

members carried by the caps and projecting into the shell, transversely extending shoul= ings to the termini of the shells, caps mount- 7 ed'on the ends of the shell and having open ings registering with the openings of the shell, transversely-extending shiftable elements provided with head's;- the heads of said elements seated in the registering openings, one of which communicates with the slot and further'exten'ding through the shell and engaging in the other'of said registering openings whereby the caps are connected to the shell, and, means engaged by said headed elements for electrically connecting the ends of a fuse with said caps, said slots being of a diameter substantially equal to 'the diameter of the transversely-shiftable elements and providing for the removal of said caps from said shell without disconnecting said headed elements from 'said means when said heads are shifted exteriorly of the caps and free of the openings.

A cartridge fuse comprising a shell, 2.

cap mounted" on one end thereof, a guide member carried by the cap, a transverse clamping screw engaging in the cap at two points and extending entirely through the shell for connecting the cap thereto, said screw having a shoulder, a fuse clamping member having'said screw extending therethiough and capable of being shifted by said shoulder for clamping the end of a fuse to said member, said screw extending through the latter, andmeans for clamping the other end of the fuse to the other end of the shell. f

4%. A cartridge fuse comprising ashell, a cap mounted on one end thereof, a member carried by the cap, a transverse clamping element engaging in the cap at two points and extending entirely through the shell for connecting the capthereto, said element having a shoulder, a fuse clamp having said element extending therethrough and capable of-being shifted by said shoulder for clamping the end of a fuse to said member, said element extending through the latter, and means for clamping the other end of the fuse to the other end of the shell.

5. A cartridge fuse comprising a shell, a cap mounted on each end thereof and carrying an inwardly extending guide member a. clamping member associated with said guide member, a transverse element for supporting said clamping member, said transverse element havmgthreaded engagement with said guide member and further engaging With said clamping member for clamping one end of a fuse to the cap, said transverse element extending completely through the cap and shell, and means for other end of the shell.

6. A cartridge fuse comprising a shell, a

cap mounted on one end thereof, a guide member carried by the cap, a transverse headed clamping element extending through and engaging with said guide member, a fuse clamp associated with said guide memher and bodily carried by said clamping ele ment, and said element having means spaced from the head thereof adapted for engaging with said clamp for shifting it to clamp one end of a fuse to said guide member, and

means for clamping'the other end of the fuse to the other end of the shell.

clamping the other end of the fuse to-the 7'. A cartridge fuse comprising a shell, 21

cap mounted on each end of the shell, guide members carried by the caps, said'shell and caps having diametrically-disposed registering openings, one of the shell openings at each end thereof communicating with a. slot that opens at the endof the shell and which v slot is of less diameter than said opening, a

headed element extending transversely of said shell ends with the head thereoffreceived in said slotted opening, clamping members supported on said headed elementsfithe opposite end of each transversely-extending element passing through the guide member and clamp and threaded into the shell and cap to prevent Withdrawal of the cap, each of said elements adapted'to be shifted axially to remote the head thereof from said opening and to permit the opposite end to clear the inner surface of the shell, where by the cap may be moved outwardly with the transversely-extending element passing through the slot; 8. A cartridge fuse comprising a shell,

caps having diametrically disposed openings therein mounted on the ends thereof, each end of the shell having diametrically-disposed openings adapted to register with the openings in the caps, one of which openings see? AVAILABLE. COPY at each end eommfihieates with a slot of reduced diameter opening at the ends of, the shell, a headed screw.v member extending transversely of said shell ends and received 5 in saidopenings with the head thereof disposed in the opening communicating with the slot, awfuse supported at each end on said screw members, means carried by the caps through which the screws extend, and means 10 controlledby said screws adaptedtopositively engage the fuseends, said screw head adapted to be removed from said opening with the opposite end clear of the inner surface of the shell to permit the caps end v serewsto be removed from the shell.

In testimony whereof We afiix our signetnres in the presence of two Witnesses WILLIAM THOMAS GARLITZ;

WILLIAM ROWLES GARDNER. v i

I Witnesses NICHOLAS L. BOGAN, MAX SROLOVITZ.