registry systems has had an influence
in the development of American jurisprudence in the direction of
supporting provisions in wills and conveyances, which, unless generally
known, might tend to mislead and deceive, such as spendthrift trusts
(_Nichols_ v. _Eaton_, 91 United States Reports, 716).

Conveyances of real estate are simple in form, and are often prepared by
those who have had no professional training for the purpose. Printed
blanks, sold at the law-stationers, are commonly employed. The lawyers
in each state have devised forms for such blanks, sometimes peculiar in
some points to the particular state, and sometimes copied verbatim from
those in use elsewhere. Deeds intended to convey an absolute estate are
generally either of the form known as _warranty deed_ or of that known
as _release deed_. The release deed is often used as a primary
conveyance without warranty to one who has no prior interest in the
land. Uniformity in deeds is rendered particularly desirable from the
general prevalence of the system of recording all conveyances at length
in a public office. Record books are printed for this purpose,
containing printed pages corresponding to the printed blanks in use in
the particular state, and the recording officer simply has to fill up
each page as the deed of similar form was filled up. One set of books
may thus be kept for recording warranty deeds, another for recording
release deeds, another for recording mortgage deeds, another for leases,
&c.

AUTHORITIES.--Davidson, _Precedents and Forms in Conveyancing_
(London, 1877 and 1885); Key and Elphinstone, _Compendium of
Precedents in Conveyancing_ (London, 1904); Elphinstone, _Introduction
to Conveyancing_ (London, 1900); Prideaux, _Precedents in
Conveyancing_ (1904); Pollock, _The Land Laws_ (London, 1896).
(S. WA.; S. E. B.)

CONVEYORS. "Conveyor" (for derivation see CONVEYANCE) is a term
generally applied to mechanical devices designed for the purpose of
moving material in a horizontal or slightly inclined direction; in this
article, however, are included a variety of appliances for moving
materials in horizontal, vertical and combined horizontal and vertical
directions. The material so handled may be conveyed in a practically
uninterrupted stream, as in the case of worms, bands and pushplate
conveyors, or elevators carrying grain or coal, &c.; or it may be
conveyed from one point to another, intermittently, that is to s