US1339495A

US1339495A - Spark-arrester

Info

Publication number: US1339495A
Application number: US66444A
Authority: US
Inventors: Samuel S Caskey
Original assignee: EI Du Pont de Nemours and Co
Current assignee: EIDP Inc
Priority date: 1915-12-13
Filing date: 1915-12-13
Publication date: 1920-05-11
Anticipated expiration: 1937-05-11

Description

S.S.CASKEY.

SPARK ARRESTER. APPLICATION FILED DEC. i3, I915. RENEWED JAN. 2' I920. 1,339,495. Patented May 11, 1920..

4 SHEETS-SHEET I. 1/

\. ATTORNEYS S. S. 'CASK'EY. SPARK ARBESTEK. APPLICATION FILED nc.'13 }1915. RENEWED JAN. 2. 1920.

1,339,495, Patented May 11, 1920.

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' 57 I INVENTOR 3 we 9 BY UMMLQ. w fu%m TTORNEYS S. S. CASKEY.

SPARK ARRESTER.

APPLICATION FILED 050.12, 1915. RENEWED JAN. 2, 1920.

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S. S. CASKEY.

SPARK ARRESTER. APPLICATION FILED DEC. 13, 19I5fRENEWED JAN. 2, I920.

1,339,495.. Patented Ma 11,1920.

4 SHEETSSHEET 4- INVENTOk W P. @H/ 3 TORNE Ys-f UNITED STATElQiBEENT OFFICE.

SAMUEL GASKEY, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO E. I. DU PONT mnnnonns AND COMPANY, or WILMINGTON, DELAWARE, A CORPORATION or DELAWARE.

SPARK-ARRESTER.

Specification of Letters Patent.

Patented May 11, 1920.

Application filed December 13, 1915, Serial No. 66,444. Renewed January 2, 1920. Serial No. 349,087.

To all whom it may concern:

Be it known that I, SAMUEL S. CASKEY, of Philadelphia, in the county of Philadelphia, and in the State of Pennsylvania, have invented a certain new and useful Improve ment in Spark-Arresters, and do hereby de clare that the following is a full, clear, and exact description thereof.

My invention relates particularly to spark arresters adapted tobe applied to locomotives and particularly the stacks thereof,but it is capable of application for similar purposes to other arts.

The object of my invention is to provide improvements in a spark arrester, which may be automatically applied to and removedfrom the stack of a locomotive without manual adjustment of the same, at the top of the stack, thus avoiding danger of burning, permitting the apparatus to be operated by one man and avoiding lossof time and labor. Further objects of my invention will appear from a detailed description appearing hereinafter.

lVhile my invention is capable of embodimentin many different forms, for the purpose of illustration 1 have shown only one form thereof in the accompanying drawings, in which,-

Figure 1 is a side ele ation of an apparatus made in accordance with my invention;

Fig. 2 is a vertical section of the spark arrester Fig. 3 is a horizontal section of the same taken on line 33 Fig. 2.

Figs. 4. and 5 are plan views partly in section and partly broken away of details;

Fig. 6 is a front elevation of the clamping means used for supporting the spark arrester I Fig. 7 is a side elevation of'the same;

Fig. 8 is an enlarged detail of the bail shown as engaged by the clamp; and

Fig. 9 is a side elevation of a detail of the elevating device for the spark arrester.

In the drawings I have shown a vertical pole 1, which may be set in a body of concrete 2 in the ground at some point along the track of a railroad, as for example, at the entrance to the ard of a plant containing combustibles. his pole, near its top has. a stationary sleeve 3 held in place by a screw 4. AbQYethe top. of the sleeve 3, there is supported a rotatable casting 5 having projecting from the rear thereof, an arm 6, provided with a counter-weight 7. From the front of the casting 5 there projects an arm 8 having a bracket 9, to which is attached an adjustable cable 10, extending over the top of a rotatable cap 11, on the top of the pole 1, and beyond the same to the counter-weight 7 in order to strengthen the rods 6 and 8. On the pole 1 there is a winch 12, having a hand-crank 13, for operating a reel 14 thereon. Attached to the reel 14: there is a cable 15 which passes over a triple block 16, through which the cable 15 passes downwardly over a double block 17, at tached to a strap 18 secured to the pole 1. From the top of the block 16 there extend two

cables

19 and 20 which pass upwardly over two pulleys 21 carried by a bracket 22 upon the arm 8. From this point the

cables

19 and 20 pass over pulleys 23, located in a bracket 24. on the end of the arm 8, and then downwardly so as to permit their ends to be attached to the upper ends of crossed pivoted

arms

25 and 26 forming a hook or clamp to engage with the spark arrester hereinafter described. The arm 25 is ar ranged so as to pass through a slot 27 in the arm 26, at which point the

arms

25 and 26 are pivoted together upon a bolt 28. Below the bolt 28 the

arms

25 and 26 are arranged so as to provide an opening 29 between the same, across which opening there are provided

movable tumblers

30 and 31 which are pivoted respectively to the

arms

25 and 26 in

recesses

32 and 33 in said arms. At the lower end of the opening 29 the

arms

25 and 26 are provided respectively with

fiat surfaces

34 and 35 which are located in a substantially horizontal position. At their lower ends the

arms

25 and 26 are provided respectively with widened and flared jaws? which may be disengaged from the same lowering the hook or clamp sufliciently to move the bail or ring 40 above the

tumblers

30 and 31, after which an upward movement of the hook or clamp will disengage the same from said bail or ring 40. On the bail or ring 40, there is a downwardly directed rod 41 at its lower end, which has a washer 42 near the top thereof and beneath which there are located two

conical bushings

43 and 44 beneath which there is located a pair of nuts 45, screw-threaded on the rod 41. Against the bushings formed by the

washers

43 and 44, rest rods 46 having outwardly turned upper ends 47 which are bound against said bushing by a ring 48. These rods 46 are arranged in a conical or pyramidal position at their upper ends, but are located in a cylindrical or prismatic position at their lower ends and are maintained in this position by an angle iron in the form of a ring.49 situated at the tops of the vertical portions of the rods 46 and a cast iron ring 50 located at the bottom of the same.

The rods 46 are covered with a wire mesh basket 51, which is held in place at its upper end by a ring 52, extending around the rods 46. It is, furthermore, secured to said arms 46 by twisted pieces of wire 53 located at intervals along the same. The cast iron ring 50 is provided on its interior with ears 54, to which there are pivoted levers 55, having upwardly directed overbalanced arms 56 and -"'downwardly directed supporting arms 57 which are connected by links 58 to segmental plates 59, pivoted by straps 60 to straps 61. attached to the outside of the cast ing 50. The downwardly directed arms 57 are arranged so as to rest against the outside of the stack 39, and the segmental plates 59 are arranged so as to fit tightly against the outside of said stack 39. If desired, there may be provided means for swinging the "arms 6 and 8, as for example, by a cable. 62,

fastened at its top to the arm 8. and at its lower end to a cleat 63 on the pole 1.

In the operation of the apparatus, it will be assumed that the hook or clamp formed by the. arms'25 and 26 is engaged with and supports one of the spark arresters 38 by engagement of the top of the bail 40 with the

horizontal surfaces

34 and 35. Normally,-

the arms 6 and. S will be maintained in a position parallel to the tracksof a railroad.

When it is desired to apply the spark arrester 38 to the stack 39 of the locomotive, the arms 6 and 8 are swung into position at right angles to the tracks by pulling upon the cable 62. The cable 62 is now released from the cleat 63 and the spark arrester lowered upon the top of the stack 39. The spark arrester 38 now rests upon the upwardly directed arms 56, which are moved when they come in contact with the top of the stack 39 until the downwardly directed arms 57 rest against the side of said stack 39 m which position the segmental plates 59 fit tightly against the ,sides of said stack. The hook or clamp formed by the

arms

25 and 26 is now lowered farther, which causes the

tumblers

30 and 31 to be moved past--

arms

25 and 26, thus permitting'the'clamp to be withdrawn from the bail or ring 40 by a further upward movement of the clamp. The spark arrester 38 while on the stack 39 effectively prevents the escape of sparks owing to the presence of the wire mesh basket 51, which incloses the top and side of the same, and owing to the

segmental plates

58 and 59, closes the spark arrester at the bottom thereof. The conical or pyramidal form at the top of the spark arrester, and the fact that it is larger in diameter than the top of the stack 39, provide a very much increased area for the escape of the gases from the top of the stack 39, so that the escape of the gases is not in any way impeded. WVhen it is desired to remove the spark arrester 38 from the 1000- motive, the arm 8 is swung over the top of the same and the hook or clamp formed by the

arms

25 and 26 lowered until the widened and flared jaws 37 coiiperate with the top of the bail or ring 40. When this takes place, the wide flaring jaws 37 will guide the clamp in the proper direction for engagement with the ring or bail 40 so that when engaged the top of the bail or ring 40 occupies the position immediately above the

horizontal surfaces

34 and 35. The hook or clamp is now elevated. As it is elevated, the weight of the arms 56 is suflicient to move the arms 57 and the segmental plates 59 away from the side of the stack 39, so that the spark arrester 38 may thus be readily moved upwardly above and away from the top of said stack. The arm 8 may now be again swung into a position parallel with the tracks of the railroad, where it does not in any way interfere with the traffic upon the same.

While I have described my invention above in detail, I wish it to be understood be fitted against the side of the stack by the downwardmovement of the cover.

2. A spark arrester having a cover with openings, and means for supporting the same spaced from the top of the stack, con1- prising automatic closing devices, including iii a stack supported lever, adapted to be fitted against the side of the stack by the downward movement of the cover.

3. A spark arrester having a cover with openings, and means for supporting the same spaced from the top of the stack, comprising automatic closing devices adapted to be fitted against the side of the stack, including a stack supported lever, having a downwardly bearing upper arm and a side bearing lower arm, fitting against the side of the stack.

4t. A spark arrester having a cover with openings, and means for supporting the same spaced from the top of the stack, comprising automatic closing devices adapted to be fitted against the side of the stack by the downward movement of the cover, and a bail at the top of the spark arrester.

5. A spark arrester having a cover with openings, and means for supporting the same spaced from the top of the stack, comprising automatic closing devices adapted to be fitted against the side of the stack, including a stack supported lever, adapted to be fitted against the side of the stack by the downward movement of the cover, and a bail at the top of the spark arrester.

6. A spark arrester having a cover with openings, and means for supporting the same at a distance above the top of the stack, comprising automatic closing devices adapted to be fitted against the side of the stack, including a stack supported lever, having a downwardly bearing upper arm and a side bearing lower arm, fitting against the side of the stack, and a bail at the top of the spark arrester.

7. A spark arrester having a cover with openings, and means for supporting the same upon the top of the stack, comprising automatic closing devices adapted to be fitted against the side of the stack by the downward movement of the cover.

8. A spark arrester having a cover with openings, and means for supporting the arse upon the top of the stack, comprising automatic closing devices adapted to be fitted against the side of the stack, including a stack supported lever, adapted to be fitted against the side of the stack by the downward movement of the cover.

9. A spark arrester having a cover with openings, and means for supporting the same upon the top of the stack, comprising automatic closing devices adapted to be fitted against the side of the stack, including a stack supported lever, having a down wardly bearing upper arm and a side bearing lower arm, fitting against the side of the stack.

10. A spark arrester having a cover with openings, and means for supporting the same upon the top of the stack, comprising automatic closing devices adapted to be fitted against the side of the stack by the downward movement of the cover, and a bail at the top of the spark arrester.

ll. A spark arrester having a cover with openings, and means for supporting the same upon the top of the stack, comprising automatic closing devices adapted to be fitted against the side of the stack, including a stack supported lever, adapted to be fitted against the side of the stack by the downward movement of the cover, and a bail at the top of the spark arrester.

12. In combination, a spark arrester adapted to surround the end of a stack, and means for automatically closing the annular space between the side of the stack and spark arrester by the downward movement of the latter into operative position.

13. A spark arrester comprising a body with openings adapted to inelose the end of a stack, movable plates adapted to extend between the side of the stack and the arrester when the latter is in position, and 1evers connected to said plates adapted to en gage the stack to move said plates into operative position.

In testimony that I claim the foregoing I have hereunto set my hand.

SAMUEL S. GASKEY.

Witnesses JOHN LEE PRATT, MAURICE on Pom LEE,