Improvements in the Construction of Hod-elevators, and in Means of Mounting and Securing the Hods thereon.
Year: 1893

page_text: Date of Application, 18th Apr., 1893
Complete Specification Left, 11th Jan., 1894-Accepted, 10th Mar., 1894
PROVISIONAL DICITIATION.
Improvements in the Construction of Hod-elevators, and in Means
of Mounting and Securing the Hods thereon.
I, CONRAD CARLSON of No. 185, 16th Street in the City of Brooklyn County of
Kings and State of New York, United States of America, Engineer, do hereby
declare the nature of this invention to be as follows:-
The first part of my invention relates to improvements in the construction of the
car, and to the means of mounting the hods thereou so that they may be more readily
applied and removed and will be securely held while on the car.
The second part of the invention relates to improvements in anti-friction guide
rolls on the car to run along the guide ways for controlling the car, and to improve-
ments in guards or hoods enclosing and protecting the rolls and guide way from the
falling matters as lumps of mortar, pieces of brick and the like which is very common
where such elevators are used.
In carrying out the first part of my invention I employ an intermediate cross-bar
between the platform of the car and the cross-head at the top of the uprights with
supporting hooks projecting from it sidewise to engage the staffs of the hods for the
lower supports of the hods instead of having the "step" supports on the platform to
receive the ends of the staffs, said intermediate cross-bar being supported at its ends
on the uprights of the car connecting the platform with the cross-head above, and
being in the central plane of the car, whereby said intermediate cross-bar is also in
said central plane which affords more free space on the platform each side of the hods,
the heads or boxes of which rest to some extent on the top of the cross head while
the staff's bear close against the sides of the said intermediate cross bar.
The hod staffs have studs projecting sidewise parallel with the said intermediate
cross-bar, and the hooks of the cross bar are double and receive the staff between
each member.
The studs of the staff and the hooks of the cross-bar are so constructed and
arranged that in case the head or box of a hod escapes from its support on
the cross head and falls forward the studs will be raised out of the hooks and
escape over and clear of the points of the hooks to prevent catching and breaking.
The said intermediate cross-bar is made detachable to be removed and leave clear
space for the better use of the elevator for hoisting barrels and other like articles
when required for such purpose. It is connected at the middle with the cross-head
by a pendent rod extending through it and having check-nuts screwed on one above
and one below to fix the support of the bar by the rod for sustaining the weight of
the hods.
Instead of the hooks on the intermediate bar and the studs on the sides of the
staff, I may in some cases use a staple on the intermediate bar, and a hook on the
side of the staff tronting the staple and pointing downward so as to hook into
the staple at the upper side.
The weight of the hods is mainly or wholly supported on this intermediate bar
but the boxes reach over the cross-head so that the staff's rest against the side
of said cross-head and are automatically caught by like studs as at the lower end,
which swing under and raise the bevel ends of latch hooks pivoted on the cross-head
which fall and catch the upper studs and hold the hods in position, the lower
studs resting in the hooks of the intermediate cross-bar being the pivots on which
the hods swing.

page_text: These hooks are double and engage a stud on each side of the staff, they are
pivoted at the rear side of the top of the cross-head and they have a depression in
the upper side of the bow at the rear into which the lower edge of the box is lodged
whereby together with the staff confined between two hooks at the front, and also con-
fined between the two members of the lower hooks the hods are effectually prevented
from swinging out of place and being thrust off as they are liable to be by the shocks
and jerks of service. But as the lateral stress is rather trying on the joints of the
upper hooks, I provide notched guards on the side of the cross-head coinciding with
the hooks between which guards the staffs lodge just below the boxes, to relieve the
hooks, and with the guards I provide a flange extending over the top of the cross-
head to the rear edge and there having knuckle eyes for the pivots of the hooks, and
I also provide a stop lug in connection with one or both of the knuckle eyes
projecting down the rear side of the cross-head to prevent the hooks from being
thrust upward too high by the thrust of the studs of the staff on the bevel ends of
the hook when the boxes of the hods swing forward over the cross-head. I may also
employ a spring in connection with cach hook to ensure its prompt fall and
engagement with the studs of the staffs.
The stud pins of the staffs to be engaged by the hooks may consist of a rod
extending through the socket attached to the bottom of the box and through the
staff connected to the box by means of the socket or they may consist of integral
studs formed on the socket. A socket is also provided for the security of the lower
pins on the staff which rest in the hooks of the intermediate cross-bar.
By suspending the hod staffs in the hooks on the intermediate bar instead
of setting them in steps on the platform as in the common way I avoid a serious
difficulty arising from the filling of the step sockets with mortar, brick dust and
the like requiring frequent attention for cleaning them out, but which is often
neglected and frequently causes damage by the escape of the staffs from the steps.
By the automatic fastening-hooks for the upper ends of the staffs I avoid the
necessity of fastening the retaining catch by hand as in the present arrangement
and by the employment of the stud pins and hooks each side of the staffs the hods
are effectually prevented from turning by which they are unhandy for the carriers
who take them from the elevator, and it is especially important as to the outermost
hod of each side which are liable to catch at the openings in the floors when
mounted close to the uprights of the elevator as they usually are.
In carrying out the second part of my invention I employ guide rolls on the car
to run along the guide ways for an anti-friction device which guide rolls 1 construct
of two flanged disks rivetted together side by side and suitably perforated at the
center to rotate on pivot studs attached to the uprights of the elevator in any
approved way, as by head plates applied thereto, said studs projecting obliquely to
the center plane of the elevator so that grooved faces of the guide wheels produced
by the flanges of the disks will run on the angles of the guide ways, whereby
one wheel to each of the two angles of the guide way fronting the elevator
will be equally as effective as three wheels acting on three sides of the guide way
respectively.
Over the guide rolls I apply pan shaped metallic guards or hoods suitably shaped
to enclose the wheels and protect them from mortar, brick chips and the like
and also being suitably flanged to fit on and be fastened to the uprights with a part
overlapping the guide ways and gaged closely thereto but so as to run free and
avoid friction.
°
These guide rolls are also adapted for guiding the chains of endless chain ladders
in common use for elevating hods the rolls being in this case mounted on a stationary
support as the floor beams.
Dated the 18th day of Annil 1902
PHILIP M. JUSTICE,
Chartered Patent Agent.

page_text: ש-ש-
-
Improvements in the Construction of Hod-elevators, and in Means
of Mounting and Securing the Hods thereon.
I, CONRAD CARLSON of No. 18, 16th Street in the City of Brooklyn, County
of Kings and State of New York, United States of America, Engineer, 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:-
The first part of my invention relates to improvements in the construction of
the car, and to the means of mounting the hods thereon so that they may be more
readily applied and removed and will be securely held while on the car.
The second part of the invention relates to improvements in anti-friction guide
rolls on the car, to run along the guide ways for controlling the car, and to
improvements in guards or hoods enclosing and protecting the rolls and guide way
from falling matters as lumps of mortar, pieces of brick and the like which is very
common when such elevators are used.
In carrying out the first part of my invention I employ an intermediate cross
bar between the platform of the car and the cross-head at the top of the uprights,
with supporting hooks projecting from it sidewise to engage the staffs of the hod,
for the lower supports of the hods instead of having the "step" supports on the
platform to receive the ends of the staff's, said intermediate cross-bar being
supported at its ends on the uprights of the car connecting the platform with the
cross-head above and being in the central plane of the car, whereby said
intermediate cross bar is also in said central plane which affords more free space
on the platform each side of the hods, the heads or boxes of which rest to some
extent on the top of the cross head while the staffs bear close against the sides of
the said intermediate cross bar.
The hod staffs have studs projecting side wise parallel with the said intermediate
cross-bar, and the hooks of the cross bar are double and receive the staff between
each member.
The studs of the staff and the hooks of the cross bar are so constructed and
arranged that in case the head or box of a hod escapes from its support on the
cross head and falls forward the studs will be raised out of the hooks and escape
over and clear of the point of the hooks to prevent catching and breaking.
The said intermediate cross bar is made detachable to be removed and leave
clear space for the better use of the elevator for hoisting barrels and other like
articles when required for such purpose. It is connected at the middle with the
cross head by a pendent rod extending through it and having check nuts screwed
on one above and one below to support the bar by the rod for sustaining the weight
of the hods.
Instead of the hooks on the intermediate bar and the studs on the sides of the
staff, I may in some cases use a staple on the intermediate bar, and a hook on the
side of the staff fronting the staple and pointing downward so as to hook into
the staple at the upper side.
The weight of the hods is mainly or wholly supported on this intermediate bar
but the boxes reach over the cross head so that the staffs rest against the side of
said cross head and are automatically caught by like studs as at the lower end
which swing under and raise the bevel ends of latch hooks pivoted on the cross
head which fall and catch these upper studs and hold the hods in position, the
lower studs resting in the hooks of the intermediate cross bar being the pivots on
which the hod's swing.
These hooks are double and engage a stud on each side of the staff, they are
pivoted at the rear side of the top of the cross head, and they have a depression in

page_text: •
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the upper side of the bow at the rear, into which the lower edge of the box is
lodged, whereby, together with the staff confined between two hooks at the front,
and also confined between the two members of the lower hooks, the hods are
effectually prevented from swinging out of place and being thrust off as they are
liable to by the shocks and jerks of service. But as the lateral stress is rather
trying on the joints of the upper hooks, I provide notched guards on the side of
the cross head coinciding with the hooks between which guards the staffs lodge just
below the boxes, to relieve the hooks and with the guards I provide a flange
extending over the top of the cross head to the rear edge and there having knuckle
eyes for the pivots of the hooks, and I also provide a stop lug in connection with
one or both of the knuckle eyes projecting down the rear side of the cross head to
prevent the hooks from being thrust upward too high by the thrust of the studs
of the staff on the bevel ends of the hook when the boxes of the hods swing
forward over the cross head. I may also employ a spring in connection with cach
hook to ensure its prompt fall and engagement with the studs of the staffs.
The stud pins of the staffs to be engaged by the hooks may consist of a rod
extending through the socket attached to the bottom of the box and through the
staff connected to the box by means of the socket or they may consist of integral
studs formed on the socket. A socket is alsc provided for the security of the
lower pins on the staff which rest in the hooks of the intermediate cross bar.
By suspending the hod staffs in the hooks on the intermediate bar instead of
setting them in steps on the platform as in the common way I avoid a serious
difficulty arising from the filling of the step sockets with mortar, brick dust and
the like, requiring frequent attention for cleaning them out, but which is often
neglected and frequently causes damage by the escape of the staff's from the steps.
By the automatic fastening hooks for the upper ends of the staffs I avoid the
necessity of fastening the retaining catch by hand as in the present arrangement,
and by the employment of the stud pins and hooks each side of the staff's the hods
are effectually prevented from turning by which they are unhandy for the carriers
who take them from the elevator, and it is especially important as to the outermost
hod of each side which are liable to catch at the openings in the floors when
mounted close to the uprights of the elevator as they usually are.
In carrying out the second part of my invention I employ guide rolls on the car
to run along the guide ways for an anti-friction device, which guide rolls I construct
of two flanged disks rivetted together side by side and suitably perforated at the
centre to rotate on pivot studs attached to the uprights of the elevator in any
approved way, as by head plates applied thereto, said studs projecting obliquely to
the center plane of the elevator so that grooved faces of the guide wheels produced
by the flanges of the disks will run on the angles of the guide ways, whereby one
wheel to each of the two angles of the guide way fronting the elevator will be
equally as effective as three wheels acting on three sides of the guide way
respectively.
Over the guide rolls I apply pan shaped metallic guards or hoods suitably shaped
to enclose the wheels and protect them from mortar, brick chips and the like, and
also being suitably flanged to fit on and be fastened to the uprights with a part
overlapping the guide ways and gauged closely thereto but so as to run free and
avoid friction.
These guide rolls are also adapted for guiding the chains of endless chain
ladders in common use for elevating hods the rolls being in this case mounted on a
stationary support as the floor beams.
Referring to the drawing-
Fig. 1, is a perspective view of a car adapted for two hods but having only one
on it, with parts of the ways on which the elevator runs, also with the guards for
the guide rolls of one side omitted.
Fig. 2, is a side elevation of the same, also with some of the guards for the
guide rolls omitted.
Wie is a detail in horizontal section an line
hia 1

page_text: 11
in section on line 2-2 Fig. ɔ, showing an additional upper
supporting device for the hod staffs.
Fig. 7, is a plan of the same.
Fig. 8, is a detail in section on line wwe Fig. 5, showing a modified arrangement
of the lower staff supporting hooks.
Fig. 9, is a detail showing another modification of the lower staff supporting
hooks.
Fig. 10, is a detail showing the application of the guide rolls to chain hod
elevators.
The car frame consists of the uprights a, projecting upward from the tee sills b,
parallel to each other and connected at their ends respectively by the beams e,
placed above the sills, the cross-head beam d, near the upper. ends of the uprights
and connecting them, and the intermediate cross bar e, extending from one to the
other of the uprights with braces f, staying the uprights and cross head, and with
floor boards g laid over the beams c.
The cross head and the intermediate cross bar e, are connected by the rod h, to
prevent bar c from sagging at the middle, the purpose of this cross bar is to secure
the lower ends of the hod staffs p, and to support the weight of the hods by the
hooks q', or equivalent devices as staples q², attached to the bar, and by suitable
projections on the staff as the ends of a pin s, or studs projecting from the staff, or
by a hooks whilst the box t, of the hod swings over the cross-head and is secured
in that position by and between the prongs of the gravitating yoke shaped hook u,
engaging the ends of another pin or stud v, projecting from the staff, said hooks
adapted for being automatically raised by the projecting portions of the pin or
studs v striking the bevel noses w, of the hook when the hod-staff, being rested in
the hooks q', as it is lowered from the shoulder of the carrier, the box is so swung
over the cross head. These hooks have laterally projecting flange studs u², for
lifting them readily by hand by the carriers who take the hods away after being
elevated to the place for delivering the contents.
The bar e, is fixed in its position detachably so that it can be readily taken out
when it may be required to elevate barrels or other material which would be
obstructed by the bar; for this purpose metal sockets x, are attached to the sides of
the uprights a, suitably for the purpose, but any approved means of detachable
connection may be employed.
The yoke hooks u, are pivoted to the cross-head at the rear side as indicated
at y, so as to lie on the top of said cross-head with the hook ends projecting forward
a suitable distance to engage studs or pins e, they have a depression at 21, in the
upper side of the bow at the rear side of the cross head in which the lower edge of
the box trests whereby together with the staff confined between the prongs of the
hook at the front and also confined in the lower hooks q', the hods are effectually
prevented from swinging out of place and being thrust off as they are liable to, be
by the jerks and shocks to which they are subject.
But as the lateral stress of this service is rather trying on the joints of the yoke
hooks, I provide the notched guards o', on the front of the cross head coincident
with the hook and with these I prefer to provide the flange p', extending over the
top of the cross-head and carrying the pivots for the yoke hooks. I also provide
the hooks u with a stop lug u, Fig. 6, to prevent by contact with the beam d, the
hooks from being thrust up too high, and I may employ a spring u³, to cause the
hooks to fall and engage the pins or studs v, quickly.
The pins may be fitted through the metal sockets a' by which the box and the
staff are connected, or they may consist of integral studs of the socket; a socket b
is also provided for like security of the lower pin s, in Fig. 1, made with the lug c¹
projecting over the pin and also over the points of the hooks q' in such a manner
that in case a hod fails of being engaged by the hooks u, or happens to escape
therefrom after being engaged and falls over forward, said lugs bearing on the ends

page_text: of said hooks cause the pins to rise up out. of the hooks and escape over the end
free and clear of the hooks, and the bar e, between which the staff would otherwise
be caught in a way liable to cause serious damage.
In Fig. 8 I have arranged these lugs to serve the purpose of the pins also, and'
have arranged the books on a larger angle and the lugs in a form adapted to roll
out of the hooks in case the hod falls as above stated; in this case also I locate the
hooks closer to the bar e, and make a notch in the lower corner for space allowing
for the staff to swing back and to some extent allow the lugs to thus roll out of the
hooks.
I employ guide rolls on the car to run along the guide ways el for an antifriction
device, which guide rolls I construct of two flanged disks d'and f, rivetted together
side by side and suitably perforated at the centre to rotate on pivot studs g' attached
to the uprights a, in any approved way, as by the head plates applied thereto
obliquely for mounting the rolls obliquely to the guide ways so that the grooved
faces thereof produced by the flanges of the disks will run on the angles of the
guide ways.
Over the guide rolls I apply the pan shaped metallic guards or hoods suitably
shaped to enclose the wheels and protect them from mortar, brick chips and the
like, and also being suitably flanged as at j' and k¹ to fit on and be fastened to the
uprights a, with the part overlapping the guide ways ganged closely thereto but
so as to run free and avoid friction. These guide rolls are also adapted for guiding
the chains of the endless chain ladders in common use for elevating hods as in
Fig. 10, the rolls being in this case mounted on a stationary support as a floor beam l^.
By suspending the hod staffs in the hooks q' instead of setting them in a step as
in the customary way I avoid a serious difficulty arising from the filling of the step
sockets with mortar, brick dust and the like requiring frequent attention for clearing
them out, and often neglected, and causing damage frequently by the escape of the
staffs from the steps. By the automatic fastening hooks for the upper ends of the
staffs I avoid the necessity of fastening the retaining latch by hand as in the present
arrangement, and by the employment of the stud pins and hooks each side of the
staffs the outermost hods are effectually prevented from turning by which they will
sometimes catch at the openings in the floors when mounted close to the uprights
as they usually are, and they are unhandy for the carriers who take them from the
elevators.
°
With the duplex gravitating hooks u, and a pin or stud c, each side of the hod
staffs a single hook as s on the staff and a staple q² on the intermediate bar e, as in
Fig. 9, will serve well for the lower support of the staff, and I do not limit myself
to the particular arrangement of the hooks 9, and studs s, in the other figures.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :
1. The combination of the intermediate detachable cross bar and the hod staff
supports thereon with the uprights and cross-head of the car, said cross-bar located
in the vertical plane of the cross-head; the supports for the boxes of the hods of
said cross-head, and the adjusting rod and nuts connecting the cross bar with the
cross-head substantially as described.
2. The combination of the intermediate detachable cross-bar with the uprights
and cross-head, said cross-bar located in the vertical plane of the cross-head; the
supports for the hod boxes on said cross-head, the hod supporting hooks on said
cross-bar, and studs on the hod staffs near the lower end for confining the staff's and
supporting the hods substantially as described.
3. The combination with a platform or car provided with a cross head, and a
support for the hod staffs near their lower ends, of the gravitating hook on the cross
head and a stud on the hod staff adapted to automatically swing under and lift and
be engaged by said hook substantially as described.
4. The combination with a platform or car provided with a cross-head and

page_text: support for hod staffs near their lower ends, of duplex or yoke shaped gravitating
looks pivoted on the cross-head and a hod having a stud on each side of its staff
adapted to automatically engage said hooks substantially as described.
5. The combination with a platform or car provided with a cross-head and a
support for the hod staffs near their lower ends, of duplex or yoke shaped gravitating
hooks pivoted on the cross-head, and hods having studs on the hod staffs
automatically engaging the hooks, said hooks having the notch or cavity in the
yoke receiving the lower narrow edge of the hod substantially as described.
6. The combination with the cross-head and the supports for the hod boxes
thereon, of the cross-bar, the hooks on the cross-bar, studs on the hod staffs for
supporting the hods near the lower ends of the staffs, and the lugs el on the staff
projecting over the points of the said hooks to raise the studs out of the hooks when
the hods fall substantially as described.
7. The combination with the cross-head, automatic yoke hooks and the hod staffs
having the studs on the sides to engage said hooks and the support for the hod
staffs, of the guards on the front of the cross-head controlling the hods laterally.
8. The combination with the uprights of the car and the guide ways, of the guide
rolls composed of two flanged disks fastened together, the flange of one disk being
adapted to bear on the face of the guide, and the flange of the other disk on the side
of the guide, said rolls mounted diagonally on the uprights and relatively to the
angles of the guide ways substantially as described.
9. The combination with the uprights of the car, guide rolls mounted diagonally
thereon and the guide ways, of the pan shaped hoods having the attaching flanges
secured to the uprights, said hoods overlapping the guide ways and inclosing the
rolls substantially as described.
Dated this 4th day of December 1893.
CONRAD CARLSON.