. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ew into thebody, making their removal for inspec-tion or repairs very convenient. Fig. 1shows the Nathan Bulls Eye type of and does away with the necessity of shut-ting off the feed regulation valves at aterminal or refilling on the road and con-sequently the necessity of opening andreadjusting these valves after refilling orat the commencement of a service move-ment. This oil control valve has a lever han-dle and index plate, and is so designedthat from the closed position a halfturn to the
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ew into thebody, making their removal for inspec-tion or repairs very convenient. Fig. 1shows the Nathan Bulls Eye type of and does away with the necessity of shut-ting off the feed regulation valves at aterminal or refilling on the road and con-sequently the necessity of opening andreadjusting these valves after refilling orat the commencement of a service move-ment. This oil control valve has a lever han-dle and index plate, and is so designedthat from the closed position a halfturn to the all open position will openall feeds, or a quarter turn the feed tothe air pump only, and vice versa. Theduty of the air pump is so severe that itrequires almost constant lubrication fromthe time it leaves a terminal to its returnto the roundhouse. It is, therefore, ofimportance that the air pump feed beleft working while the locomotive is tem-porarily at rest at a station or on a sid-ing. A quarter turn of the oil controlvalve handle provides for this. In thisconnection it may be stated that when. DETROIT BUIXSEYE LOCOMOTIVE LUBRICATOR SEVEN FEED STANDARD. lubricator with five feeds. As will beobserved it has no supporting arms orother accessories to shake loose, but isof a compact and substantial form, andis meeting the requirements of the high-powered modern locomotive service witha degree of reliability that would be diffi-cult to surpass. Among others the Detroit LubricatorCo. has also achieved an enviable reputa-tion, making numerous developments andimprovements during the last forty yearsthat are adapted to every type of locomo-tive. Among some of the companys im-provements is the introduction of an oilvalve in the oil passage between thereservoir and the sight feed regulatingvalves in the Detroit Bulls Eye lubri-cator. This places in the hands of theoperator a means of instantly starting,stopping or throttling the rate of feed. the feeds are choked at the iubricator in-
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