. Locomotive engineering : a practical journal of railway motive power and rolling stock . F|(J,4Air Valve Open. the roller standard height above the top ofthe rail. The latching device is shown at L, , and in detail in Figs. 5 and 6. The ob-ject of this device is to hold up the weight(.seen at IV, Fig. i) after it has beenraised by a passing train, allowing thecounterweights .\and ) Fig. i, to carry the signal to clanger and to drop theweight, thereby raising the two weights Xand i, clearing the signal, and restoringthe apparatus to its normal position whena train passes over the re-leas
. Locomotive engineering : a practical journal of railway motive power and rolling stock . F|(J,4Air Valve Open. the roller standard height above the top ofthe rail. The latching device is shown at L, , and in detail in Figs. 5 and 6. The ob-ject of this device is to hold up the weight(.seen at IV, Fig. i) after it has beenraised by a passing train, allowing thecounterweights .\and ) Fig. i, to carry the signal to clanger and to drop theweight, thereby raising the two weights Xand i, clearing the signal, and restoringthe apparatus to its normal position whena train passes over the re-leasing trip and out of theblock. Bj reference toFig. 5, it is seen that thelever L carrying the weightis attached at one end to theinclined bars or trip, and atthe other to the bottom ofthe rack rod F. which, ifraised, will be held up by ^9-^ W. J/ and ,\ on the releasing bar O, the re-leasing bar being operated by a motionplate connected by means of a crank andconnecting rod to the pipe line operatedby the releasing trip. If the bar is drawnout, the latch will hook the end of therocker, allowing the pawl to engage withthe rack and hold it up when it is raised ;if the bar is shoved in, the latch will re-lease the rocker, the weight drawing therocker down, the pawl piece being drawnagainst the projection and forced out, re-leasing the rack and allowing it to general arrangement of the appa- -[O—mr
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroa, bookyear1892
