That's not what he meant by predicting the end, this is what he thought would happen:
1874 to 1914 was described as the greatest time of trouble in human history, with 1914 to be the conclusion of the Last Days. Armageddon would begin, resulting in the wholesale destruction of all government and religion. Russell and his followers were to be raised to heaven and Jesus Kingdom would then be established as paradise on earth.
"Now, in view of recent labor troubles and threatened anarchy, our readers are writing to know if there may not be a mistake in the 1914 date. They do not see how present conditions can hold out so long under the strain. We see no reason for changing the figures - nor could we change them if we would. They are, we believe, God's dates, not ours. But bear in mind that the end of 1914 is not the date for the beginning, but for the end of the time of trouble." Zion's Watch Tower 1894 Jul 15 p.226
The following quotes during the lead up to 1914 show there could be no doubt as to what followers of the Watchtower Society were to expect.
Armageddon ended
"
the battle of the great day of God Almighty
The date of the close of that "battle" is definitely marked in Scripture as October 1914. It is already in progress, its beginning dating from October, 1874." Zion's Watch Tower 1892 Jan 15 p.23
End of the "Time of Trouble"
"The seventh trumpet sounds from Aug. 1840, until "the time of trouble," or day of wrath is ended. Hence, it doubtless ends with the times of the Gentiles, and this forty years of conquest; and therefore, sounds until A. D. 1914; at the end of which, Babylon the great, will have fallen, and the "dragon" be bound: that is, the nations will be subdued, and "the prince of this world cast out."" Three Worlds and the Harvest of This World (Barbour & Russell, 1877) p.27
Religion Utterly Destroyed
"The seventh trumpet sounds from Aug. 1840, until "the time of trouble," or day of wrath is ended. Hence, it doubtless ends with the times of the Gentiles, and this forty years of conquest; and therefore, sounds until A. D. 1914; at the end of which, Babylon the great, will have fallen, and the "dragon" be bound: that is, the nations will be subdued, and "the prince of this world cast out."" Three Worlds and The Harvest of This World (1877) p.143
"A.D. 33, to A.D. 70 was 36 ½ years; and so from A.D. 1878 to the end of A.D. 1914 is 36 ½ years. And, with the end of A.D. 1914, what God calls Babylon, and what men call Christendom, will have passed away, as already shown in prophecy." Studies In the Scriptures - Thy Kingdom Come (1891) p.153
"October, 1914, will witness the full end of Babylon, "as a great millstone cast into the sea," utterly destroyed as a system." Watch Tower 1911 Jun 15 p.190
Harvest work complete
"HARVEST" is a term which gives a general idea as to what work should be expected to transpire between the dates 1874 and 1914." Studies In the Scriptures - Thy Kingdom Come p.135
"These, already examined, show that the close of 1874 marked the beginning, as the close of 1914 will mark the end, of this 40 years of harvest; while all the minutiae of the order and work of this harvest were portrayed in that of the Jewish age, its type." Studies In the Scriptures - Thy Kingdom Come pp.149-150
Governments overthrown
Studies In the Scriptures Series II - The Time Is at Hand (1889) pp.77, 78 claimed seven things would happen in 1914. Not one of these eventuated. The following statements are extracted from that list;
1. "the disintegration of the rule of imperfect men. at that date the Kingdom of God, for which our Lord taught us to pray, saying, "Thy Kingdom come," will begin to assume control, and that it will then shortly be "set up," or firmly established, in the earth, on the ruins of present institutions."
2. He whose right it is thus to take the dominion will then be present as earth's new Ruler; and not only so, but it will also prove that he will be present for a considerable period before that date;
3. the last member of the divinely recognized Church of Christ, the "royal priesthood," "the body of Christ," will beglorified with the Head;
4. Jerusalem shall no longer be trodden down
5. Israel's blindness will begin to be turned away
6. the great "time of trouble such as never was since there was a nation," will reach its culmination in a world-wide reign of anarchy
7. It will prove that before that date God's Kingdom, organized in power, will be in the earth and then smite and crush the Gentile image (Dan. 2:34)-and fully consume the power of these kings."
"True, it is expecting great things to claim, as we do, that within the coming twenty-six years all present governments will be overthrown and dissolved . In view of this strong Bible evidence concerning the Times of the Gentiles, we consider it an established truth that the final end of the kingdoms of this world, and the full establishment of the Kingdom of God, will be accomplished at the end of A. D. 1914 . Be not surprised, then, when in subsequent chapters we present proofs that the setting up of the Kingdom of God is already begun, that it is pointed out in prophecy as due to begin the exercise of power in A.D. 1878, and that the "battle of the great day of God Almighty" (Rev. 16:14), which will end in A.D. 1914 with the complete overthrow of earth's present rulership, is already commenced. The gathering of the armies is plainly visible from the standpoint of God's Word." Studies In the Scriptures Series II - The Time Is At Hand (1889) pp.99, 101
"we have seen that God has a set time for every feature of his plan, and that we are even now in this "Day of Vengeance," which is a period of forty years; that it began in October, 1874, and will end in October, 1914 [very shortly]." Studies In the Scriptures Series IV - The Day of Vengeance -pp.546, 547
Jesus to start ruling the earth
SETTING UP THE EARTHLY GOVERNMENT ---- Not until the full end of Gentile Times (October, A.D. 1914) should we expect the earthly phase of God's Kingdom; for in giving a lease of dominion to the Gentiles until that date God made no mistake and his plans alter not. The earthly phase of the Kingdom of God when set up will be Israelitish; for such is God's engagement or covenant with Abraham and his natural seed. Even the chief favor, the spiritual Kingdom, was offered first to fleshly Israel, and would have been given to them if they had been ready at heart to receive it on the conditions attached to it-to suffer with Christ and afterward to be glorified with him." Studies In the Scriptures Series IV - The Day of Vengeance pp.624,625
Earthly Resurrection to occur
"And yet "Jerusalem must be trodden down of the Gentiles, until the times of the Gentiles are fulfilled;" hence, trodden down until A. D. 1914, when the day of wrath will be passed, and the resurrection and return of the "whole house of Israel" due." Three Worlds and The Harvest of This World (1877) p.166
"The beginning of the earthly phase of the Kingdom in the end of A.D. 1914 will, we understand, consist wholly of the resurrected holy ones of olden time-from John the Baptizer back to Abel-"Abraham, Isaac, Jacob and all the holy prophets." Studies In the Scriptures Series IV - The Day of Vengeance p.625
144,000 All Resurrected to Heaven
1908 edition Thy kingdom come page 228
The 144,000, also known as the "body of Christ" or "the saints", were to all be in heaven by 1914, prior to the completion of Armageddon.
"That the deliverance of the saints must take place some time before 1914 is manifest, since the deliverance of fleshly Israel, as we shall see, is appointed to take place at that time... Just how long before 1914 the last living members of the body of Christ will be glorified, was are not directly informed;..." Studies In the Scriptures - Thy Kingdom Come (1908 ed.) p.228
1914 - Failed Watchtower prophecy - Falsified History