US1046775A

US1046775A - Automatic bell-ringing device.

Info

Publication number: US1046775A
Application number: US64273411A
Authority: US
Inventors: Herschel W Gross
Original assignee: JOHN H WARD
Current assignee: JOHN H WARD
Priority date: 1911-08-07
Filing date: 1911-08-07
Publication date: 1912-12-10
Anticipated expiration: 1929-12-10

Description

H. W. GROSS.

AUTOMATIC BELL BINGING DEVICE:

APPLICATION FILED AUG. 7, 1911.

1,046,775. A Patented Dec. 10, 1912.

Z SHEETS-SHEET 1.

W'bza Ja J j ilk/ 32 6i 5. m; Ham/M22 M 67 0 54;

H. W. GROSS.

AUTOMATIC BELL RINGING DEVICE.

APPLICATION FILED AUG. 7, 1911.

1,046,775. Patented Dec. 10, 1912.

2 SHEETS-SHEET 2.

nnnscnnn w. (moss, or CHICAGO, ILLINOIS, :ASSIGNOR or cum-11113.1) To JOHN E.

. WARP, or cnIcAoo, ILLINOIS.

Aurom'rIc IBELL-RINGING DEVICE. v

To all whom it may concern Be it known that I, HERSCBIEL W. Games, a citizen of the United States, and, a. resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Automatic Bell- Ringing Devices, of which the following is] a specification.

My invention relates to devices for efiecting automatic bell ringing, and more-specifically to that class thereof designed espe cially for employment upon locomotives.

The object of my invention is the production of a device of the character mention'ed whichwill be of improved construction and of greatetficiency in operation.

Ether objects will appear hereinafter.

With these objects in view my invention consists in the combinations and arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawing forming a of this specification, and in which,

Figure 1 is a side elevation of a bell ringi g device embodying my invention, Fig. 2 is central vertical section of the main operative parts of the device, Fig. 3 is a transverse section taken on line w-rn of Fig. 2,

sis a transverse section taken on line 31 1 or Fig. 2.

The preferred form of construction as illustrated in the drawings comprises a portion 1 of a locomotive boiler upon which is mounted thebell bracket 2 in which is mounted for oscillation the bell support or hanger S. the hanger 3 and is adapted to oscillate herewith. Secured to one extremity of the support or hanger 3 by means of a set screw is a crank 5 through the medium of which aid support and the bell i may be oscila.ed. Arranged adjacent the bracket 2 and n osed directly below the crank 6 is an upight cylinder 7, there being securing lugs cast integral with said cylinder which are secured by means of screws Q to a supporting bracket 10 which is approximately l..-shaped in form and secured to the top of the boiler 1 by means of a pair of screws 11. @perating within the cylinder 7 is a piston 12 carried by a piston rod 13, said piston rod projecting through the upper head of said cylinder into an axial The hell 4 is rigidly secured to' shown in Fig. 2.

Specification of Letters Patent. Eatented Dec, 10, 1912.. Application filed August 7, 191i. Serial No. 642,724.

guide chamber 14 formed integral with said cylinder head In order to prevent leakage past the piston rod 13 a packing gland 15 is provided and held. in position by'a cup 16} which is. screwed upon the threaded periphery of the chamber 14.. The upper end of the piston rod 13 is threaded and screwed into an internally threaded block 17 as shown in Fig. 2. In this manner an adjustable connection is formed between the piston rod 13 and the block 7, any

'desiredadjustment being secured by means of a locknut 18 disposed below the block 17. The crank 6 is operatively connected with the block 17 by means of a connecting rod 18, the latter being suitably pivoted at each end thereof. The construction is such that reciprocation of the piston 12 and block 17 effects oscillation of the crank 6 and consequently the hell 4 which is arranged in rigid relation therewith. ?rovided in the head 7 ofth'e cylinder 7 is a plurality of perforations 19 by means of which the ingress and egress of air to and from the cylinder 7. is readily permitted.

In order to limit the upward movement of the piston rod 13 and the oscillation of the bell caused thereby a helical spring 20 surrounding said piston rod is interposed between the piston 12 and the head 7', the length thereof being approximately as shown in Fig. 2. The spring 20 causes the piston 12 to stop gradually and precludes the possibility oi any shock or noise. Also with this construction the boil t is prevented from making a complete rotation whichis a very objectionable fault with bell ringers of ordinary construction. It is well known that with bell ringers as ordinarily constructed it is possible for the bell to be whirled or rotated at such aspeed that operation of the hammer is prevented and hence a sounding of the bell also reven'ted, this not infrequently resulting in disaster. The lower end or" the cylinder 7 is provided with an extension cylinder 21 there being a circular opening 22 between the main and extension cylinders. The periphery of the lower'end of the extension cylinder 21 is threaded and screwed thereto is an internally threaded cup 23 by means or which a collar 24: and a packing gland 25 is rigidly secured in position as The collar 24 is seated against a shoulder 26 and serves as a seat for the lower end of a helical compression spring 27 provided within the extension cylinder 21. The packing gland 25 together with the collar 24 effectually prevents loss of compression in both of the cylinders 7 and'21. Axiall arrangedinthe cup 23 which is rovidedwit a central opening is a cylindrlcal valve 28 having aconlcal valve head 29 at the upperend thereof. Formed integral with the valve 28 and extending upwardly therefrom through the opening 22 between l the

cylinders

7 and 21 is a triangular shaped -.stem 30 theupper surface of which serves to metrically opposlte radially projecting pins 31 provided at. the upper end of the valve 28..7The general construction and the calibration of the spring 27 is such that the pisten 12 will'come to a full stop before it 1. reaches the lower end of the cylinder 7 as shownin Fig. 2. Simultaneously with the contact of the piston 12 with the valve 28 the valve head 29 is unseated from the valve seat .32,thus establishin communication between the .two cylinders .and 21.

The extension cylinder 21 is connected .with a source of compressed air or other fluid by means of a pipe 33 which is tapped into one side of the cylinder 21 as shown..-

In operation when it is desired to operatethe hell a valve (not shown) inthe pipe 33 j I is opened which efl'ects the-delivery of the. compressed fluid to the extension'cylinder 1 .shown in Fig. 2 the 41 45.

21. The valve 28. bein in 'the'position' as uid now, contained within the cylinder 21 will flow through the ,:.opening 22 and exert an n ward pressure {upon the lower side of the plston 12. During the upward movement of the piston 12 thebell 4 will. obviously be oscillated either 15 02111 one direction or the other due to the con- ..necting mechanismbetween said piston and -.,.the-bell hanger ,5. The bell 4 will be oscili inbefore explained. After the piston 12 has v lated to such an extent that it'will assume one'of the dottedline positions as shown in Fig. 1' whereupon it will stop oscillating due {to the contactof the compression spring 20 withthe under side of the cylinder head 7', the stopping action. being gradual as heremoved upwardly a certain distance a port 34 wh ch leads to atmosphere and provided in glone side of the cylinder 7 is uncovered by s a 1d,,p1 ston and ermits the charge of com.-

,pressed fluid actlng thereon to escape. The

piston 12 will not immediately stop, how-.

ever, due to the momentum of the bell and the connecting medium, said piston continll- .ing to move until stopped by the contact of the spring 20 with the head 7 as aforesaid. When the piston 12 begins to ascend the valve 28 follows the same until the valve head 29 is seated upon the valve seat 32, whereupon the supply of compressed fluid is cut oil fromfthe cylinder 7. The valve head 29 will not again open until the'piston 12 descends following its upward movement and contacts with the stem 22. The valve head 29 will now be unseated since thepision 12 is returned by the gravity of the op erating parts and the bell-4'which' tends to assume the stable normal position as shown in Fig. 1. Since the piston 12 is now exposed to the pressure of the. fluid contained within the cylinder 21 it will operate as before. In this manner the bell 4 will continue to oscillate and ring until the valve in the pipe 33 is closed. V

The construction as set forth is simple and economical, hence may be manufactured at a low cost, and the same because of its simplicity is not. susceptible to readily becoming inoperative. ,The parts are assembled for readyremoval if desired to eflect cleaning, the valve 28 for instance being adapted to be readily removed by removal of the cup 23. The adjustable con-- nection between the block 17 and the piston rod 13 aflords means for readily and gradually adjusting the throw or amplitude of oscillation of the crank 6 and hence the bell with which the same is connected. The

parts of the construction are exceedingly strong and durable I and are of high elliciency in operation.

While I have illustrated and described the preferred form of construction for carrying my invention, into effect, this is 'capa- I ble of variation and modification without departing from the-spirit of the invention. 3

I therefore do not wish to be limited to the precise details of construction as setforth, but desire .to avail myself of such variations and modifications as come within the scope of the appended-claims.

Having described my invention what I claim as new and desireto secure by Letters Patent is:

cylinder and an axially arranged cylinder extension, a piston in said piston cylinder; a valve stem in said cylinder extension; a partition between said piston cylinder and cylinder extension having a circular opening therein and provided with a valve seat formed adjacent said opening and within said cylinder extension, a portion of said valve stem being polygonal in cross section and projecting through said opening into the lower portion of said piston cylinder; .a val e headcn said valve stem'adapted 1.- In a locomotive bell ringer, a piston to engage an annular valve seat; a helical spring on said piston adapted to limit the upward movement thereof; a helical spring on said valve stem adapted to hold the valve head normally closed; an exhaust port in the lower portion of said piston cylinder; means for supplying fluid under pressure to said cylinder extension; and an operative connection between said piston and the locomotive bell, substantially as described.

2. In a locomotive bell ringer, a cylinder having a piston and an axially arranged cylinder extension having a circular opening into the lower portion of said piston cylinder; a valve head in said chamber having a polygonal valve stem; a nut in said chamber and cylinder extension; a valve seat within said cylinder extension and surrounding said opening, said valve stem passing through said opening and into piston cylinder,

the lower portion of said rovided with a helical 'spring on sand valve head cylinder adapted to limit the upward movement thereof; an exhaust port in said piston cylinder; and an adjustable operative connection between said piston and the locomotive bell, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribmg witnesses.

HERSCHEL W. GROSS. Witnesses: I

JOSHUA R. Porrs, W. C. SMITH.