Improvements in "Means or 'Mechanism for Cutting Wood, :the same 'being specially applicable for Use in the Production of Plasterers' Laths.
Year: 1894

page_text: Date of Application, 27th Sept., 1894
*Complete Specification Left, 27th June, 1895-Accepted,, 27th July, 1885
PROVISIONAL SPECIFICATION.
Improvements in "Means or 'Mechanism for Cutting Wood, :the same
'being specially applicable for Use in the Production of Plasterers'
Laths.
I, WALTER WHITLEY of Park Road, Bingley in the County of York,
Manufacturing Joiner, do 'hereby declare the nature of this invention to be as
follows, that is to say :-
It has reference to machines.or mechanism. for outting wood that are specially
applicable for use in the production of plasterers. laths, and consists.of.the arrange-
ment and combination of parts forming these said machines whereby said laths
may be quickly and cheaply, produced and that out of pieces of wood of little value
as compared with tliose pieces usually employed for the production of said laths.
In accordance with my invention, I make use of a knife of suitable dimensions
and having an appropriately formed cutting edge either. straight.or consisting of la
series of reflex curves, and this kuife I mount in bearings which maintain it in a
fixed position so far as regards any motion in a vertical direction but which allow
it to be moved horizontally for an appropriate distance.
Mounted in suitable proximity with this knife and also in bearings properly
formed for it, is a table having reciprocatory motion, imparted to it in.a vertical
direction, preferably. by.cam and lever or screw and worm wheel mechanism, which
causes said table to advance towards the knife at a desired rate of speed while..it
allows or causes it to recede therefrom at.an increased speed.
Upon this table is or are placed the board or boards, which..may be one, two,
three or more in number from which the laths have to be produced, such boards
being of a length and thickness corresponding with the length, and breadth.or.width
that it is'desired to have the resultant laths.
On the boards being placed in position the table.is, put into. motion and caused ito
advance towards the knife which is at this time being moved in. a horizontal
direction, by which means as the board or boards, which project from the table or
otherwise extend under the knife a distance. equal to, the thickness of lath to be out,
are brought into contact with this knife they are.out as desired. Suitable spring
or other holding clamps as well as appropriate guide. and adjusting pieces are
employed for bolding the boards and regulating the positions which same, must
occupy for effecting the object desired.
The driving mechanism of the machine may be arranged so that the motion
imparted thereto is continuous or so that, said motion shall only be of a duration to
take the table from. its 'lowest to its highest and back again to its lowest positions
at each engagement of same by the operative, its disengagement on assuming its
lowest position being performed automatically.
'Dated this 26th day of September 1894.

page_text: improvements in means or Mechanism for Cutting Wood, the same
being specially applicable for Use in the Production of Plasterers'
Laths.
I, WALTER WHITLEY of Park Road Bingley in the County of York,
Manufacturing Joiner, 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, that is to say:-
It has reference to machines or mechanism for cutting-wood, that are specially
applicable for use in the production of plasterers' laths, and consists of the arrange-
ment and combination of parts forming these said machines whereby said laths may
be quickly aud cheaply produced and that out of pieces of wood of little value as
compared with those pieces usually employed' for 'the production of said laths.
4
In the accompanying sheets of drawings which are illustrative of my invention,
Fig. 1 is a front elevation of a machine made in accordance with my invention.
Fig. 2 is end elevation of the mechanism shown by Fig. 1 aud as seen in the
direction indicated by the arrow a.
Fig: 3-istsectional end elevation of said mechanism.
!
1.. !
Fig. 4 is front elevation (reduced scale) of, a portion of the machine shown by
Fig. 1 and illustrates the application thereto of a clamping device, hereinafter
described.
Fig. 5 is a drawing in detail showing the functions of certain of the parts as will
be hereinafter explained: ** Alu
A indicates the framework of the machine.
To carry my invention into effect I make use of a 'knife which is of suitable
dimensions and which has an appropriately formed, cutting edge either straight
as shown in a full line by Fig. 1 or consisting of a series of reflex-curves as shown
in broken lines of the same figure.
**
This knife & I attach to the carrier c which is arranged to slide in the framework
or on its bearings'd in a horizontal direction, while it is firmly held in the direction
at right angles to this or in the vertical direction.
Mounted in suitable proximity with this knife is a table which has motion
imparted to it in a vertical direction by means of the cams g g mounted on the
rotary shaft h, this latter deriving its said motion through the gearing wheels &
(shown in broken lines Fig. 2)'from'any' prime motor through the medium of the
pulley 'm. The wheel' being fixed upon the hub of the pulley m so that the one
may impart motion to the other when carried by 'the fixed shaft n.
The cams gigare formed so that they will cause the table to advance towards
the knife bat any desired rate of speed while they allow it to recede therefrom 'at
an increased speed.
7
Upon this table is or are placed the board or boards s (which may be one, two,.
three or more in number, four of them being shown in the drawings) from. which
the laths have to be produced; such boards & being of a length and thickness
corresponding with the length and breadth or width that it is desired to have the
resultant laths.
"
יזי
On the boards 's being put into position and the table caused to advance towards
the knife b, motion is, imparted to this latter as above described, by the lever r
pivotted at and the camp fixed upon the shaft by which means as the board or
boards & which project from the table for otherwise extend under the knife ba
distance equal to the thickness of lath to be cut are brought into contact with this
knife b they are cut as desired.

page_text: 8
To secure these boards & in position the clamping jaw t (see Fig. 4) is forced into
contact with them by the weighted levers u u¹ (pivotted to the framework at u³ and
to said jaw at u) on the table f, which carries them, rising sufficiently to bring
them into contact with said jaw t. This latter being arranged so that it may
assume a higher or lower position as the adjusting screws resting upon the
framework A may determine, these being regulated so that whether only one or
more boards s are placed upon the table the jaw t is come in contact with by it or
them just prior to their coming in contact with the knife b in order that they may
be held as desired during the actions of this knife b.
In proximity with the inner edge fl of the table fare fixed gauge pieces w which
extend upwards.to within an appropriate distance of the knife 6 so that on the
boards s being pressed against these pieces they will extend or project a distance
under the knife b equal to the thickness of the resultant lath, while as the table f
rises to bring the boards s into contact with the knife on said knife b having
completed the cutting of a lath from any of said boards s such lath will be
severed from its board in a position higher than the pieces to consequently it will
be free to fall therefrom into a suitable position or receptacle behind the machine→
and on the completion of each upward and downward motion of the table f the
boards s are pushed forward thereon or pressed against the pieces to where they are
ready for the next cutting operation.
The driving mechanism hercin shown and described produces a continuous move-
ment of the several parts however instead of this, separate parts may be added, as
suitable clutch mechanism, whereby the said motion may only be of a duration to
take the table from its lowest to its highest and back again to its lowest positions
at each engagement of same by the operative, its disengagement on assuining its
lowest position being performed automatically.
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
olaim is :-
1. The combination and arrangement of the several parts forming the wood
cutting or lath producing mechanism herein described substantially as specified.
2. In a lath producing or cutting machine, the combination of a vertically moving
table with a knife arranged to be stationary so far as regards any vertical motion
substantially as herein set forth.
3. In a lath producing or cutting machine, the combination of a moveable table,
means for moving same, and a knife having lateral motion imparted to it
substantially as specified.
4. In a lath producing or cutting machine, the combination of a moveable table,
a laterally moveable knife, and clamping mechanism for securing the boards on said
table substantially as herein set forth.
5. In a lath producing or cutting machine, the combination of a moveable table,
a clamping device in connection with this table, fixed gauge pieces in proximity
with said table, and a knife carried by the framework substantially as herein set
forth and described.
Dated this 26th day of June 1895.
WALTER WHITLEY,
Per Samuel Hey,
Agent.