Improvements in Washers for Looking Nuts.
Year: 1895

page_text: Date of Application, 7th Mar., 1895-Accepted, 13th Apr., 1895
COMPLETE SPECIFICATION.
Improvements in Washers for Looking Nuts.
1, HARRY VALENTINE PADFIELD. Gentleman, of Odd Fellows Building, in the
City of St. Louis, State of Missouri, U.S.A., do hereby declare the nature of this
invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement
--
My invention relates to a nut lock, the object of my invention being to construct
a nut lock that combines simplicity, cheapuess and efficiency.
My invention cousists in a single metallic plate having the usual bolt-hole therein,
and portious of said plate being raised into a plano above the normal plane of the
plate in order to securely lock and hold the nut.
In the drawings-
Figure 1 is a section of meeting rail ends, the same having my lock applied
thereon, as required for practical use.
Fig. 2 is a sectional view taken approximately on the indicated line 2-2 of
Fig. 1.
Fig. 3 is a view in perspective of my improved nut lock, the same being shown
as when used for a nut lock upon wood or analogous substances.
Fig. 4 is an edge view of the form of uut lock shown in Fig. 3, said view being
taken as looking in the direction of the arrow "A" (Fig. 3).
Fig. 5 is an edge view of the form of lock shown in Fig. 3, said view being taken
as looking in the direction of the arrow "B" (Fig. 3).
Fig. 6 is a sectional view of a portion of wood or timber, the same having my nut
lock applied thereto.
Fig. 7 is a perspective view of my improved nut lock, such as is shown in Fig. 1,
and used upon railway-rails.
Fig. 8 is an edge view of the form of lock shown in Fig. 7, said view being taken
as looking in the direction of the arrow "C" (Fig. 7).
Referring by numerals to the accompanying drawings-
1 indicates the ordinary railway-rail, 2 the fish-plates thereon, 3 the bolt and 4
the nut.
The plate 5 comprising my improved nut lock is preferably rectangular in plau
view and constructed preferably from sheet steel or like material. Located approxi-
mately in the center of the plate 1 is an aperture 6 which serves as a bolt-hole, and
communicating with said bolt-hole from one edge of the plate 5 is a cut or slit 7,
the edges of said cut or slit being numbered respectively 8 and 9.
The edge 9 and the material 10 of the plate adjacent said edge is bent into a
plane above that occupied by the edge 8.
The cut or slit 7 extends from the bolt-hole 6 diagonally, to the edge of the plate
or at an angle to said edge.
In the edge of the plate opposite this slit or cut 7 is formed a cut or slit 11 at an
angle relative the edge of the plate, and said cut or slit terminating adjacent the
bolt-hole 6, but not communicating therewith.
The edges of the cut or slit 11 are numbered respectively 12 and 13, the edge 13
and material 14 of the plate adjacent said edge being beut into a plane above that
occupied by the edge 12.
When the plate is to be used as a nut lock upon wood or analogous substances,
the edge 9 and a portion of the material 10 adjacent said edge is bent at right

page_text: uugies
to the MAID Doay or the plate o, thus forming a downwardly pending
prong 15.
When my improved nut lock is to be used upon the fish-plates of railway-rails,
said plate being of the form shown in Fig. 7, is placed directly in contact with the
fish-plate 2, the bolt 3 passing through the bolt-hole 6, and the edges 9 and 13,
together with the material 10 and 14 adjacent said edges projecting out and away
from the fish-plate. The nut 4 is now placed in position upon the screw-threaded
end of the bolt 3 and so manipulated as to contact with the plate 5. As the nut
contacts with the raised edges 9 and 13 and adjacent metal 10 and 14, said edges
and the adjacent metal will be forced toward the fish-plate.
The cut or slit 11 is at such an angle as that it will engage in one of the sides of
a rectangular or hexagonal nut, and as said nut is more tightly screwed upon the
bolt 3, the raised edge 13 of tho cut or slit 11 will form a firm lock in order to
prevent the nut from turning in a reverse direction and off the bolt.
The plate being constructed of steel or other resilient material, the edge 9 and
adjacent metal 10 will always contact with the inner surface of the nut, aud tend to
securely hold the same, thus compensating for any expansion or contraction of the
bolt and adjacent parts.
When the plate is used as a nut lock upon wood or analogous substances, the
plate formed as shown in Fig. 3 is laid directly upon the wood, and the nut screwed
in the ordinary manner upon the bolt. As the nut moves along said bolt, the
prong 15 will be forced into the wood or analogous substance, thereby securely
preventing the plate from turning.
The raised edge 13 of the cut or slit 11 will prevent the nut from being turned in
a reverse direction upon the bolt, and the raised portion 10 adjacent the prong.15
will take up and compensate for all the expansion and contraction of the bolt and
adjacent parts.
Thus it will be seen how I have constructed a nut lock formed of a single plate
of material, preferably resilient sheet metal, said nut lock possessing superior
advantages in point of simplicity, durability and general efficiency.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what mannor the same is to be performed, I declare that what I
claim is :
1. A nut lock, comprising a rectangular metallic plate, the same having cuts or
slits in its body portion extending from the edges toward the center of the plate,
said cuts or slits being at angles relativo the edges of the plate and having certain
of their edges bent into planes above that occupied by the main body of the plate.
2. A nut lock, comprising a single plate, having diagonal slits or cuts formed in
its edges and extending toward the center thereof, certain of the edges of said cuts
or slits and the material surrounding said edges being bent into a plane above that
occupied by the main body of the plate.
3. A unt lock, comprising a single plate, the same having a slit extending from
one edge diagonally to the bolt-hole in said plate, one edge of said slit or cut an
the material adjacent said edge bent into a plane above the other edge, said plate
also being provided with a cut or slit from one edge to a point near the bolt-hole,
one edge of said cut or slit and the material adjacent said edge bent into a plane
above that occupied by the other edge.
4. A nut lock, comprising a plato of resilient material, the same having slits or
cuts extending from its edges toward the center thereof, one of the edges of one of
the cuts or slits being to hold the nut in a fixed or locked position, and one of the
edges of the remaining cut or slit being adapted to engage against the inner face of
the nut, to compensate for any expansion and contraction of the bolt.
5. A nut louk, composed of a single plate of resilient material and having in one
edge a cut or slit extending from said edge to the bolt-hole of the plate, one of the
edges and material adjacent same, of said slit or cut being bent at right angles to
the main plate, thus forming a prong, said plate being also provided with a out or

page_text: slit extending from the edge of said plate to a point near the center thereof, and
one of the edges of said slit or cut and the material adjacent same being bent into
a plane above that occupied by the other edge.
Dated thie 7th day of March 1895.
ALLISON BROS.,
Agents for the Applicant.