IMPROVEMENTS IN APPARATUS FOR FACILITATING THE NAILING OF LATHS
Year: 1885

page_text: I, WILLIAM ROBERT LAKE of the firm of Haseltine, Lake & Co, Patent Agents,
Southampton Buildings, in the County of Middlesex do hereby declare the nature
of my invention for, "IMPROVEMENTS IN APPARATUS FOR FACILITATING THE
NAILING OF LATHS" to be as follows: -
The essential part of a lathing apparatus embodying my invention, consists of
one or more lath-holding rods or bars, each of which is provided with notches
projections, or pins, adapted to receive and hold in their ultimate relative position,
a series of laths which are to be nailed to the studding, joists, or furring strips of
the walls or ceiling of a building. The said bars are provided with devices for
detachably securing them to the studding, joists, or furring strips whereby a single
bar, or two parallel bars, sustaining a series of laths, may be placed and held with
the laths, in position for nailing, while said laths, are being secured. The said
devices for securing the lath-holding bars, consist of a part or arm pivoted to one
end of each bar, and provided with devices whereby it may be readily secured to
and detached from the studding, joists, or furring; the pivotal joint between the.
bars, and the attaching arms being so constructed, that after the arms have been
attached to the studding, joists, or furring, the bars may swing downwardly or
outwardly so as to allow the latha to be placed thereon, and then swing upwardly
or toward the wall or ceiling so as to hold the laths in position for nailing.
In connection with the bars pivotally supported in this manner, suitable stops
will be provided upon the bars and arms for holding the bars in a horizontal or
inclined position suitable for conveniently placing the laths thereon, and locking
devices will also be provided for sustaining the arms in position with the laths in
contact with the surfaces to which they are to be nailed.

page_text: It will be understood that when a single lath holding bar is used, it will be
provided with laterally extending supports for the laths, adapted to hold the latter
firmly in a horizontal position. Usually however two separate narrow bars will
be used together, one of said bars being attached to each of two adjacent studs,
joists, or furring strips in such manner as to support the laths, at points near
their ends.
As a preferred construction in means for securing the bars to the surface to be
lathed, I provide the arms which are pivoted to said bars, with sliding pins adapted
to be driven into to the studs, joists or furring, each pin being preferably provided
with stops for limiting its sliding movement, and also with a spring for holding it
at the outer limit of its movement.
The locking devices for sustaining the lath-holding bars with the laths thereon
in position for nailing, desirably consist of spring-pawls pivoted upon the bars, and
constructed to automatically engage stops upon the arms, so as to hold the bars in
position with the laths in contact with the surface to which they are to be nailed.
The surfaces of the stops engaged with the free ends of the pawls are preferably
inclined in such manner that when the ends of the pawls are moved inwardly
thereon, the bars will be carried toward the surfaces upon which the bars are
secured, so that the laths may be held closely against said surfaces. Said pawls
will preferably be pivoted upon the ends of forwardly extending projections formed
upon the bars adjacent to the pivotal axis of the latter, the said projections being
arranged to engage the front surfaces of the arms so as to form stops to limit the
downward movement of the bars, and to support the latter in a position at right
angles to the arms, so that said bars will be sustained horizontally for placing the
laths thereon, when working upon a vertical wall. In operating upon a ceiling, it
is obviously necessary to sustain the bars in an inclined position in placing the
laths thereon; and for this purpose, a second stop is provided upon the arms in
position to engage the spring-pawl, when the bars are inclined relatively to the
said arms; the stop last mentioned being preferably formed by the end of a set-
screw which may be advanced beyond the face of the arm when the device is
being used upon a ceiling, and which may be turned back flush with the said face
of the arm, to permit the pawl to pass freely over it in working upon a vertical
wall. The arms are desirably provided upon their inner faces with projections
adapted to rest against a base-board, or the top lath of a group of previously
attached laths, so as to enable the laths held upon the arms to be applied accurately
parallel with the said base-board or previously attached laths.
When two separate lath holding bars and attaching devices therefor are used,
the said bars are desirably united by a cylindric rod forming the pivots connecting
the bars with the arms, said rod serving to hold the two bars at a distance apart
equal to the distance between the adjacent studs, joists, or furring-strips to which
the laths are being applied. The bars are desirably made adjustable longitudinally
upon the rod, so that their distance apart may be changed to correspond with the
distance between the studs, joists or furring strips, and the said bars are desirably
provided with splines engaging a longitudinal groove in the rod, whereby the bars
are adapted to slide but not to rotate upon the rod, this construction enabling the
bars to be held in the same plane, and to be moved together by applying the hand
to either of them.
In order to provide for the spacing of the laths in more or less open order, by
varying the distance between the adjacent laths of the series, the lath bars are
each provided with several distinct series of apertures, in which a series of studs
projecting from the faces of the bar may be interchangeably secured, the apertures
in each series being equidistant from each other, but the distance between any two
apertures in any one series being greater or less than the distance between any two
adjacent holes in any other series. The studs may be secured in the holes in
any desired
manner as for instance, by screw-threading the holes and the studs. Preferably,
however, the studs will be provided with heads upon their inner ends, and will be
г
+

page_text: inserted through the apertures from the lower or outer face of the bar, and held
in place by means of a metal strip secured to the bar over the heads of the studs.
When this construction is employed, the said strip is conveniently attached to the
bars, by means of a pivotal joint at one of its ends, and a spring latch or other
locking device at its opposite end, whereby the strip may be conveniently thrown
back to disclose the heads of the studs, and permit the latter to be shifted from
one to another of the series of apertures, for the purpose of changing the distance
apart of the said studs.

page_text: Improvements in Apparatus for Facilitating the Nailing
of Laths.
I, WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake & Co, Patent Agents,
Southampton Buildings, in the County of Middlesex, 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 essential part of a lathing apparatus embodying my invention consists of
one or more lath-holding rods or bars, each of which is provided with notches
projections, or pins, adapted to receive and hold a number of laths in position for
nailing. The said rods or bars are provided with devices for securing them to the
studding, joists or furring strips of a building which devices preferably consist of a
part or arm pivoted to one end of each bar, and provided with devices whereby it
may be readily secured to and detached from the studding, joists, or furring, the
pivotal joint between the bars, and the attaching arms, being so constructed that
the bars after being attached may swing downwardly or outwardly so as to allow
the laths to be placed thereon and then swing upwardly or toward the wall or
ceiling so as to hold the laths in position for nailing.
In connection with the bars pivotally supported in this manner, I provide
suitable stops upon the bars and arms for holding the bars in a horizontal or
inclined position suitable for conveniently placing the laths thereon, and I provide,
also, locking devices for sustaining the arms in position with the laths in contact
with the surfaces to which they are to be nailed as will hereinafter more fully
appear.
The invention may be more readily understood by reference to the accompanying
drawings, in which ;-
Figure 1 is a front elevation showing the lathing apparatus fastened to and
supported on two studs that form part of a wall or partition, the lath-supporting
bars being arranged for holding the laths in position to be nailed to said studs.
Figure 2 is a side elevation of the same.
Figure 3 is a side elevation of the lathing-apparatus in position to receive a
supply of laths.
Figure 4 is a side elevation of the same fastened to a ceiling and in position to
apply laths thereto, and showing in dotted lines the lath-supporting bars in position
to receive a supply of laths.
Figure 5 is an elevation showing the outer side of one of the lath-supporting
bars detached from the other parts of the apparatus.
Figure is a longitudinal section of a plate or bar which secures the lath-spacing
and lath-holding pins or studs in the arms.
Figure 7 is a longitudinal, central section of the bar shown in Figure 5.
Figure 8 is a detail section taken upon line x - - x of Figure 1.
Figure 9 is a perspective view of the main part or casting of one of the arms for
sustaining the lath-supporting bars.

page_text: Figure 10 is a detail section showing the holding-pin illustrated in Figure 8,
taken through the part supporting said holding-pin.
Figure 11 is a section taken upon line x - - x of Figure 10.
As illustrated in the drawing, A A are two lath-supporting arms or bars, which
are provided upon their inner faces with lath-holding devices consisting of a series
of pins or studs a approximately equal in length to the thickness of a lath. The
bars A A are connected with each other by a transverse rod B engaged with
apertures in the lower ends of the bars and preferably arranged to slide freely in
a longitudinal direction but not to rotate on the said bars. For the purpose last
mentioned the rod B is preferably provided with a longitudinal groove b¹ engaged
by splines 6* upon the bars A A.
i.
The lath-holding device consisting of the bars A A and the rod B, is secured to
the studs, joists, or furring of the wall or ceiling to which the laths are to be
applied by means of fastening-devices herein shown as consisting of arms G
pivotally connected with the lower ends of the bar, and pins c held in guide-
apertures in the upper portions of the arms C and adapted to be driven into the
studs or joists so as to hold the arms firmly in position upon the latter. The
pins c are preferably made of conical form or tapering upon their inner ends, so
that, they may be readily withdrawn from an object into which they are driven.
The bars A A which, as herein shown, are formed of metal, are provided near
their lower ends and adjacent to their points of connection with the arms C with
forwardly-extending or projecting arms A¹ adapted to engage the said arms so as
to support the said bars A in approximately horizontal position when the said arms
are attached to a vertical surface, as clearly shown in Figure 3. Upon the outer
end of each of the arms A¹ is pivoted a pawl D, the lower end of which is adapted
to engage a stop c¹ herein shown as formed by a notch in the arm C. The said
stop is arranged in position for engagement with the pawl when the bar A is
approximately in alignment with the arm C, and the pawl is held in position to
engage the stop by a spring d, so that when the bar is lifted so as to bring the
laths thereon against the surface to be lathed the pawl will automatically engage
the stop and lock the bar in the position mentioned.
+
In the use of the apparatus constructed generally as above described upon a
vertical surface, as, for instance, in lathing the walls of a room, the bars A A are
first moved upon the rod B until they are the same distance apart as two adjacent
studs, and the arms C are then secured to the studs by driving the pins c therein.
The bars are then permitted to swing outwardly until supported in a horizontal
position by the contact of the arms A¹ with the said arms C, when the laths
are placed upon said bars between the studs a. This may be expeditiously
accomplished by grasping a number of laths laid with their flat faces together and
drawing them forward over the studs in such manner as to allow a lath to catch
upon and fall behind each stud as the laths are carried forward. After the laths
have been placed upon the bars in this manner, the outer ends of the latter are
lifted until they have assumed a vertical position, when the lower ends of the
pawls D will engage the stops c¹ and thereby hold the bars with the laths thereon
in contact with the studs and in position for nailing. When the several laths held
upon the bars have been secured to the studding the apparatus is removed by with-
drawing the pins c and is again attached above or below the group of laths
previously fastened and again manipulated in the same manner in placing the next
and succeeding groups.
In the employment of the apparatus for lathing ceilings, the arms G are secured
to the lower horizontal surface of the joists or furring in the same manner as before
described, but the bars A A instead of being sustained in a position at, or nearly
at, right angles with the said arms C while the laths are being placed thereon are
supported in an inclined position as indicated in dotted lines in Figure 4. The
bars may be supported in the position mentioned by one hand of the operator,
while the other is engaged in placing the laths upon the bars, but preferably each
of the arms C C is provided near its lower end with a second stop c³ adapted to

page_text: engage the lower end of the pawl D when the bars are inclined at an angle of
about forty-five degrees from a horizontal line, as clearly shown in Figure 4.
In the particular construction of the device herein shown, the stop c³ is formed
by a thumb-screw ca inserted from the inner face of the arm C and adapted to be
advanced beyond the face of the arm so as to engage the pawl D in doing over-
head or ceiling work and to be retracted to let the end of the pawl pass freely
over it when the apparatus is employed upon a vertical or side-wall, and the stop
is therefore not needed. In the construction herein shown, also, the arms C are
sustained at their upper ends at some distance from the face of the studding by
means of projections upon the inner faces of the arms adjacent to the pivot-rod B,
said projections being adapted to rest against the edge of a base-board or against
the adjacent or top lath of a group of previously-applied laths, so as to properly
guage the distance between the first or lower lath of the group held in the lath-
bars and the said base-board or adjacent latb, as clearly shown in Figure 2. The
arms C are also provided at their lower ends with projections c³ adapted to rest
against the surface of the studs, furring, base-board, or previously attached laths,
and to thereby afford spaces beneath the arms, within which the head of the thumb-
screw may be located. The upper stop c for the pawl D is, as before mentioned,
formed by a recess in the arm C, and the bearing surface of the said recess as
clearly shown in Figure 8, is preferably arranged at an angle to the arm with its
inner portion nearer to the pivotal axis of the pawl than its outer portion, so that
the end of the pawl in sliding inward upon said surface will force the upper ends
of the bars A inward. By this construction, the said bars may be held by the
pawls and stops with the laths thereon against the studding or joists, either when
the lower ends of the arms C are resting upon a lath, as shown, or upon a base-
board of greater thickness than the lath, or upon the surface of the stud or joist to
which the laths are applied.
The fastening-pin c is, as herein shown, held in an aperture co formed in a lateral
wing or projection c¹ upon the arm C, the said aperture being located below and
with its axis at right angles to the pivotal axis of the arm. The pin c is adapted
to slide freely in the said aperture, and a suitable stop or pin c engaged with a
slot in the pin, as clearly shown in Figures 10 and 11, operates to limit the
inward and outward longitudinal movement of the pin. The said pin is provided
with an enlarged head c¹ and a spiral spring c¹ is placed around it between its
head and the wing C¹ to retain it in position for driving. The pin c is arranged at
some distance laterally from the arm C and bar A, so that when the pin is driven
into the middle of a joist or stud the bar A will not cover the portions of the laths
and studs into which the nails are driven. The arms C are usually, for convenience
in manufacture, made with two opposite, lateral wings or projections C¹ made
continuous with the projections c before described, the pins c usually being placed
in the wings at the outer sides of the arms. In fastening the apparatus to
studding or joists, the pins c are driven inwardly by a few blows of the hammer
until the outer end of the slot ce strikes the stop c' when the inner end of the
projections will be held in contact with the stud and the arm thereby secured
firmly in place. The pin may be readily loosened and removed by tapping the
outer end of the pin, or the pins may both be withdrawn at once by pulling
forcibly outward upon the upper ends of the bars A at the time the latter are held
rigid upon the arms C by the engagement of the pawl D therewith.
In order to provide for the spacing of the laths in a more or less open order by
varying the distance between the adjacent laths of the series, each bar A is provided
with several distinct series of apertures in which the said studs may be inter-
changeably secured, the apertures in each series being equidistant from each other,
but the distance between any two apertures in any one series being greater or less
than the distance between any two adjacent holes in any other series. In Figure 5,
the lath-bars are shown as provided with three distinct series a¹, a², a³ of apertures
the pins a being represented as inserted in the series marked a¹. The studs may
be secured in the apertures a³ a³ in any well known or. preferred manner; as, for

page_text: instance, by screw-threading the apertures and the studs. Preferably, however,
the studs are provided with heads upon their inner ends, and are inserted through
the apertures and held in place by a bar A² secured to the bar A upon the outer
face of the latter, in contact with the said heads. In the construction of the device
for holding the studs in place herein shown and preferably employed, the heads
upon the pins are countersunk in the outer face of the bar A, and the bar A³ is
hinged thereto by a pivot bolt a preferably located adjacent to the rod B, and its
opposite ends is provided with a spring-catch As (Figure 6) adapted to engage a
suitable aperture in or projection upon the outer end of the bar A and to thereby
detachably hold the said bar A* in place.
In the particular construction herein shown, each of the bars A is provided at its
end adjacent to the rod B with two forwardly-projecting side flanges A* between which
the bar A³ is pivoted by means of the pivot-bolt a, and in which the apertures b
for the said rod are formed; the spline 6' before mentioned, as more clearly shown
in Figure 8, being secured at its ends in notches in the said flanges. In the
apparatus herein illustrated, also, the arms C are connected with the rod B by
means of two parallel ears or lugs C provided with suitable apertures 6³ for the
rod and located at either side of the flanges A* of the bars A, and the bars and
arms are prevented from coming off the ends of the rods by removable pins b*
inserted through the said rod near its ends. The arms upon the bars A are
desirably formed by means of two parallel parts or projections a³ upon the
flanges A, and the pawls D are pivoted to the said arm A¹ by means of a pivot-
pin d' inserted through the said parts a³ and the said pawls. When this construction
of the parts is used, the spring d for holding the pawl in contact with the arm C
is desirably made of spiral form as shown, and the end of the pawl engaged with
the pin is provided with a central notch d³ to receive the spring, which latter is
held at its inner end in a longitudinal slot in the pin d and rests at its outer end
against the outer surface of the pawl, as more clearly shown in Figure 8. To keep
the pin d from rotating under the action of the spring and to enable the tension
of the latter to be adjusted, said pin is provided with a head as having, several
notches d in its margin, one of which is engaged by a pin d³ in the outer face of
one of the parts a' of the arms, The pin d may obviously be turned to bring
either of the notches d' into engagement with the pin do and the spring thereby
made to act upon the pawl with more or less pressure as desired.
As illustrated in the accompanying drawings, the spring catch As before men-
tioned is formed by a bolt a fitted to slide in an aperture a in the end of the
bar A and held outwardly by a spiral spring as located in the aperture beneath
the bolt. The bolt is held from coming out of the aperture by means of a transverse
pin a³ in the bar, which engages a recess at formed in one side of the bolt a so as
both to limit the longitudinal movement of the bolt and to prevent the latter from
turning in its seat. The bolt a is preferably constructed to engage an aperture all
in an outwardly turned flange or projection a12 upon the end of the bar A, the
aperture being extended entirely through the flange so that the bolt may be readily
pushed inward to release the bar A' by means of a nail or other slender instrument.
The bars A' may be desirably provided, as shown, with outwardly-curved or hooked
projections as which serve as handles in manipulating the bars A.
Instead of the movable pins a, other well-known means may be used to vary the
spacing of the laths upon the bars; as, for instance, separate pieces provided with
projections or recesses differing in their distances apart in the different pieces, may
be interchangeably attached to the said bars; and my invention is not, therefore,
as it relates to this feature of the invention, limited to the particular construction
herein shown, except in the claims in which such construction is specifically set
forth, but is intended to cover broadly any device adapted to vary the spacing
substantially in the manner described.
It is obviously practicable to use the lath-holding bars A together with the
attaching-arms C connected therewith, without the connecting rod B by fastening
the bars separately upon the joists or studding with the axes of hinged joints

page_text: between the bars and the attaching-arms in alignment with each other, and moving
the bars simultaneously with the hands in raising said bars after the laths have
been placed thereon. As far as it relates to features of construction in the lath-bars
and the fastening-devices for securing them to the surface to be lathed, therefore,
my invention is not limited to the use of the said rod in connection with the
lath-bars. It will also be obvious that it is practicable to use but one lath-holding
bar A having an attaching arm C connected therewith, as for example, the bar
could be widened and the pins or studs a made of sufficient width to form broad
bearings for the edges of the laths, whereby one bar thus equipped would serve
to hold a series of laths at the middle of the latter. The principal object of the
rod B is to hold the said lath-bars at the proper distance apart and parallel with
each other, and for this purpose it is obviously not necessary that the said rod
should be arranged to form the pivotal connection between the said bars and arms
as herein shown, but one or more rods having sliding-connection with the lath-bars
at any desired point or points, or any other device adapted to hold the said bars
parallel with each other and to allow their lateral adjustment may obviously be
used with substantially the same results.
While it is preferable to have both of the lath-holding bars fitted to slide on the
rod B, yet if desired, the rod can be rigid with one bar, and a sliding connection
formed only between the rod and the remaining bar. My invention therefore as
it relates to means for connecting the lath-bars, is not limited to the particular
construction herein shown, except in the claims in which such construction is
specifically set forth.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is :-
:-
1 The combination, with a lath-holding bar, of means for supporting said bar.
consisting of an arm pivotally connected with the said bar and provided with
fastening-devices constructed to detachably secure the said arm to the surface to
which the laths are applied and means substantially as described for holding the
bar in position with the laths supported thereby against the surface to be lathed,
whereby the arm may be lowered to receive the laths and lifted and held with the
laths in position for nailing, substantially as described.
2: The combination, with a lath-holding bar, of means for supporting said bar,
consisting of an arm pivoted to the bar and provided with fastening-devices con-
structed to detachably secure said arm to the surface to which the laths are applied,
and automatically acting means, substantially as described, for holding the bar in
position with the laths thereon against the surface to be lathed, substantially as
described.
3-The combination, with a lath-holding bar, of means for supporting said bar
consisting of arms pivoted to the bar and provided with a fastening-device for
detachably securing said arms to the surfaces to which the laths are applied, and a
spring-pawl pivoted upon the bar, said arm being provided with a stop adapted for
engagement with said pawl so as to hold the bar in position with the laths thereon
against the surface to the lathed, substantially as described.
4: The combination, with a lath-holding bar, of means for supporting the said
bar upon the surface to be lathed, consisting of an arm pivoted to the said bar and
provided with a fastening-device, substantially as described, the said bar being
provided with a projection A' adapted to engage the arın so as to sustain said bar
in position to receive the laths, and means substantially as described for holding
the bar with the laths held thereon in position for nailing, substantially as and for
the purpose set forth.
5-The combination, with a lath-holding bar, of means for supporting said bar
upon the surface to be lathed, consisting of an arm pivoted to said bar and
provided with a fastening-device substantially as described, a projection A¹ upon &
the bar adapted to support said bar in position for receiving the laths, and a pawl

page_text: pivoted upon the said projection A the said arm being provided with a stop adapted
to engage the pawl so as to hold said bar against the surface to be lathed, substan-
tially as and for the purpose set forth.
6: The combination, with a lath-holding bar, of means for supporting said bar
upon the surface to be latbed, consisting of an arm pivotally sonnected with said
bar and provided with a fastening-device, substantially as described, a projection A¹
upon the bar adapted to rest against the arm so as to sustain the bar in position
for receiving the laths in lathing a vertical surface, and a pawl pivoted upon said
projection A¹ the said arm being provided with a stop adapted to engage the pawl
so as to hold the bar with the laths thereon in position for nailing, and also with a
stop for engaging the pawl so as to sustain the bars in position to receive the laths
in over-head work, substantially as described.
7: The combination, with a lath-bar provided with a suitable lath-holding
device, of means for supporting said bar upon the surface to be lathed, consisting
of an arm C pivotally connected with said bar and provided with fastening device
substantially as described, a projection A¹ upon the bar, and a pawl pivoted upon
the said projection A¹, the said arm being provided with a stop c adapted for
engagement with the said pawl, and a movable stop c adapted to be placed in
position for engaging the pawl in over-head work, substantially as described.
8 The combination, with two lath-holding bars and means for supporting said
bars upon the surface to be lathed consisting of arms pivoted to the bars, and
provided with attaching-devices substantially as described, of means substantially
as described for uniting the said bars, substantially as and for the purpose set
forth.
9:-The combination, with two lath-holding bars and means for supporting the
said bars upon the surface to be lathed consisting of arms pivoted to the bars, and
provided with attaching-devices substantially as described, of a rod uniting the
said bars and having sliding connection with one or both of the latter, substantially
as and for the purpose set forth.
10 The combination, with the lath-holding bars of arms C. provided with
fastening-devices whereby said arms may be detachably secured to the surface to
be lathed, a grooved rod D affording pivotal connection between said bars and arms,
the said bars being provided with splines engaged with the groove of the rod,.
whereby said bars are adapted to slide longitudinally upon the rod and are held
parallel with each other, substantially as described.
11 The combination, with a lath-holding bar, of means for supporting said bar
upon the surface to be lathed, consisting of an arm C pivoted to the said bar and
provided with a fastening-pin c, substantially as and for the purpose forth.
12: The combination, with a lath-holding bar, of an arm C pivoted to said bar,
a fastening-pin e held in a suitable guide-aperture in the said arm, a stop for
limiting the longitudinal movement of the said pin, and a spring applied to retain
the pin at the outward limit of its movement, substantially as and for the purpose
set forth.
13 The combination, with a lath-bar provided with two or more separate
series of apertures, of a series of lath-holding studs adapted for insertion in either
of said series of apertures, whereby the widths of the spaces between the said studs
may be changed, substantially as and for the purpose set forth.
14: The combination, with a lath-bar provided with two or more separate
series of apertures, of a series of headed lath-holding studs adapted for insertion in
either of said series of apertures, and a removable bar attached to the said lath-bars
over the heads of the studs, substantially as and for the purposes set forth.
15: The combination, with a lath-bar A provided with two or more series of
apertures, of a series of headed lath-holding studs adapted for insertion in either
of said series of apertures, a bar A hinged at one end to the said lath-bar, and a
catch for detachably securing the opposite end of the said bar A¹ to the lath-bar
substantially as and for the purpose set forth.

page_text: 16-The combination, with a lath-holding bar, of an arm C hinged to said bar
and provided with a fastening-device whereby it may be attached to the surface to
be lathed, and with a projection c* upon its inner face adapted to rest against a
base-board or the top lath of a group of previously-attached laths, substantially as
and for the purpose set forth.
17: The combination, with a lath-holding bar, of an arm C hinged to said bar
and provided with a fastening-device whereby it may be attached to the surface to
be lathed, said arm being provided upon its inner face with a projection c* adjacent
to its points of connection with the lath-bar and with a projection c³ at its free
end, substantially as and for the purpose set forth.
18: The combination, with a lath-holding bar A, of an arm C binged to said
bar and provided upon its inner surface with a projection c c and upon its outer
face with a stop c₁ a fastening device upon said bar for detachably securing it
upon the surface to be lathed, a pawl D pivoted to the bar A and constructed to
engage the stop c¹ and a set-screw c³ inserted through the arm C and adapted to
project from the outer face thereof, so as to form a stop for the pawl D in doing
over-head work, substantially as described.
19 The combination, with a lath-holding bar A of an arm C hinged to said
bar, a fastening device for detachably securing said arm upon the surface to be
lathed, and a pawl D pivoted to the said arm A, said arm C being provided with
a stop c¹ for the pawl having an inclined surface operating to force the bar
toward the surface to be lathed when the end of the pawl is thrust inwardly
thereon substantially as described.