US1700053A - Bell-ringer valve - Google Patents

Description

WITNESS:

Jan. 22, 1929. 1,700,053

, o. B. HOLMQUIST. SR

BELL RINGER VALVE Fi led Feb. 21, 1928 2 Sheets-Sheet 1 zxzlsztsr.

INVENTOR Al IORNEY Jan. 22, 1929. 1,700,053

0. B. HOLMQUIST, 5R

BELL RINGER VALVE 2 Sheets-Shem 2 Filed Feb, 21, 1928 I 0364123 w/ wism INVENTOR I BY J 0 ATTOR N EY Patented Jan. 22, 1929.

UNITED STATES PATENT OFFIQE...

BELL-BIN GER VALVE.

Application filed February 21, 1328.

This invention relates to means for controlling the operation of the bell of a locomotive. an object being to provide means operated by the operation of the latch release lever of the throttle valve lever to ring the bell prior to the opening of the throttle and thus insure sounding of the bell prior to the start of the locomotive.

Another object of the invention is the prol vision of means to permit of the operation of the bell independently of the latch lever, whereby the bell may be silenced after the opening of the throttle, as well as to permit of the operation of the bell irrespective of 1 the position of the throttle lever, so that the bell may be sounded when the locomotive is either movingor standing.

With the above and other objects in view, the invention further includes the follow- 20 ing novel features and details of construction, to be hereinafter more fully described, illustrated in the accompanying drawings and pointed out in the appended claims.

In the drawings Figure 1 is a plan View illustrating the invention.

Figure 2 is an enlarged fragmentary plan View illustrating the valve.

Figure 3 is an enlarged sectional view '0 taken substantially on the line 33 of Figure 1, the device being removed from the throttle lever bracket.

Figure 4L is an enlarged sectional view on the line 4-4 of Figure 3.

Figure 5 is a similar view on the line 55 of Figure 2.

Figure 6 is an enlarged section on the line 66 of Figure 1.

Figure 7 is a detail perspective view of 40 the U-shaped slide.

Figure 8 is a similar view of'the slidable roc.

Referring to the drawings in detail wherein like characters of reference denote corre- 45 sponding parts, the reference character 10 indicates the throttle valve lever which is pivotally mounted as indicated at 11 upon the throttle lever heel bracket 12 and is connected to the throttle valve by suitable '5 means such as indicated at 13. The reference character 14 indicates the throttle lever segement which is adapted to be engaged by a latch (not shown) controlled by a latch release lever 15. All of the foregoing is of 55 the usual or any preferred construction.

The reference character 16 indicates a pipe Serial No. 256,057.

or conduit which leads from the main air reservoir or other suitable source of air pressure to the bell ringer of the locomotive, a reducing valve (not shown) being arranged within this pipe so as to prevent thebell from turning over in the event of excessive air pressure. v

Also arranged within the pipe 16 is'a bell ringer valve 17 which is shown in detail in Figures & and of the drawings. This valve includes a passage 18 within whichis positioned a seat 19 for a valve member 20 and the latter is provided with oppositely extending stems 21.

Slidingly mounted upon the casing ofthe valve 17 as shown at 22 is a substantially U- shaped slide 23. The parallel armsQ l of the slide 23 engage the outer ends of the valve stems 21, so that when the slide is operated the valve will be moved to an open or closed position. Normally, the valve is closed so as to cut oil air from the bell ringer and in order to open the valve there is provided a rod 25 which is slidable longitudinally of the throttle lever 10. One end of this rod is provided with an ofiset portion 26 whose outer end terminates in a rightangled extension 27. This extension is adapted to engage a lug 28which extends from the slide 23. The rod 25 is slidable longitudinally of the lever andthe latter carries a stud 29 which extends through an opening 29 provided in the rod 25. The rod is yieldingly held against sliding'movcment in one direction by means of a spring 30.

Pivotally secured to one end of the rod 25 as shown at 31 is a link 32 and this link is in turn pivotally secured to the latch release lever 15.

By refer-ence to the drawings it will be seen that when the latch release lever is grasped prior to the operation of the lever 10 for the purpose of opening the throttle valve, this lever 15 will slide the rod longitudinally of'the lever 10 and cause the rightangled extension 27 to engage the lug 28, so that the slide will be moved to 0 )en the valve 17 and permit air to pass to the ell ringer. As the throttle lever 10 is moved to an open position, the rightangled extension 27 will move off of the lug 28 due to the relative positions of this lug and the fulcrum point- 11 of the throttle lever.

In order to close the valve 17 and shut off air from the bell ringer, there is provided a lever 33 which is pivotally mounted as shown at 34: to a bracket carried by the casing of the valve 17. One end of this lever is positioned between the lug 28 and a lug 35 which extends from the slide 23. The opposite end of this lever is pivotally connected to one end of a rod 36 whose opposite end is pivoted to a hand lever 37, the latter being in turn pivotally connected with the throttle valve lever 10. As the slide 23 is moved during the opening movement of the valve 17, the lever 33 will be rocked upon its pivot and after the throttle valve lever 10 has been operated to open the throttle and the right angled extension 2? has moved oil of ti 1e leg 28, the lever 37 may be operated to move the lever 33 in a reverse direction or against tllug 28 so that this lug will be moved in a reverse direction to close the valve 1'4. As one end of the lever 33 positioned between the lugs 28 and the valve l? may be opened independently of the latch release lever 15 by operating the lever so that the lever 33 will engage the lug 'l nus the valve l7 may be opened or closed to sound or silence the bell irrespective oi the position of the throttle lever 10. However, the throttle lever cannot be operated to open the throttle without first opening the valve 17. Ringing lot the bell will thus be assured prior to movement of the locomotive.

Pivotally mounted upon the lever l0 as shown at 38 is a guide block 39 which is provided with a recess 40 to slidingly receive the rod 25. This recess is closed by a plate 4.1 which is removably secured to the block and as the recess 4:0 is longer than the cross sectional area of the rod 25, the latter may have lateral movement as well as longitudinal movement in the guide. A spring 42 bears against one edge of the rod 25 to yieldingly hold this rod in one end of the slot, and the tension this spring is regulated by an adjusting screw The guide block 39 thus supports the end of the rod 25 in position for the extension 2'? to engage the lug 28, while the spring 42 permits this extension 27 to slide oit' ot the lug when the lever 10 is swung upon its pivot.

The invention is susceptible oil. various changes in its form, )roportions and minor details of construction and the right is herein reserved to make such changes as properly tall within the scope of the appended claims Having described the invention What is claimed is 1. The combination with the throttle lever of a locomotive and a valve to control the operation of the locomotive bell, of means carried by the throttle lever to open the bell valve prior to the operation of said lever, and means to close said valve.

2. The combination with the throttle lever off a locomotive and a valve to control the operation of the locomotive bell, of means operated by the throttle valve release latch lever to open the bell valve simultaneously with the operation of the latch lever, and means to close the Valve.

3. The combination with the throttle lever of a locomotive and a valve to control the op eration of the locomotive bell, 07f means oper- 'ated by the throttle valve release latch lever to open the bell. valve. simultaneously with the operation of the latch lever, and means independent of the latch lever to close the valve.

The combination with the throttle lever ot a locomotive and a valve to control the operation of the locomotive bell, of means operated by thethrottle valve release latch lever to open the bell valve simultaneously with the operation of the latch lever, and means independent of the latch lever to operate the valve.

5. The combination with the throttle lever of a locomotive and a valve to control the operation of the locomotive bell, of means operated by the throttle valve release latch lever to open the bell valve simultaneously with the operation of the latch lever, and means independent of the latch lever to operate the valve when the throttle lever is in either open or closed position.

6. The combination with the throttle lever of a locomotive, of a valve including oppositely extending stems, a slide engaging the stems and operable to open and close the valve, means actuated by the throttle valve release latch lever and engaging the slide to open the valve when the latch lever is operated, and means to operate the slide to close the valve.

7. The combination with the throttle lever of a locomotive, of a. valve including oppositely extending stems, aslide engaging the stems and operableto open and close the valve, means actuated by the throttle valve release latch lever and engaging the slide to open the valve when the latch lever is operated, and

means independent of the latch lever to open and close said valve.

In testimony whereof I aflix my slgnature.

OSCAR B. HOLMQUIST, SR.

Images