Combined Double Cross-cut, Squaring-off, and Grooving Machine.
Year: 1889

page_text: Date of Application, 7th Sept., 1889
Complete Specification Left, 5th June, 1890-Accepted, 5th July, 1890
PROVISIONAL SPECIFICATION.
Combined Double Cross-cut, Squaring-off, and Grooving Machine.
I, JOHN RAMSAY STEWART, of 23 Cotton Road, Dundee, in the County of Forfar,
Machine Maker, do hereby declare the nature of this invention to be as follows:-
The objects of my invention are to cross-cut and square off wood planks to a given
length, quickly and accurately, and to cut one or more grooves in same, in an improved
manner and by means of improved apparatus.
In carrying out my invention, I employ a spindle running in suitable bearings,
upon which are fixed the grooving and one cross-cutting saw; the grooving saws
being at one end of said spindle, the whole combination forming the fixed head of the
machine. One, two, or more grooving saws may be on said spindle, side by side with
distance pieces between them, and the saws may be of different diameters so as to cut
grooves of varying depth. Provision is made for raising or lowering the table at the
grooving saws, to suit different depths of grooves.
In that portion of the machine used for cross-cutting, one of the saws, forming
part of the fixed head, is on the opposite end of the spindle which carries the grooving
saws, while the other cross-cutting saw is fixed to a separate spindle carried in a
shifting head.
The shifting head is supported by two slides, parallel to the axis of the saw spindles,
and it may be secured in any desired position by means of a bolt and plate. The
table for carrying the wood while it is being cut, consists of an open rectangular
frame, and moves on rollers running on two rails at right angles to the saw spindles.
In the open space of the before mentioned table, is a moveable plate, which forms the
table for the shifting saw. Said plate is supported in slides parallel to the axis of the
saw spindles and are parts of the rectangular frame or table. Said moveable plate is
made to slide backwards and forwards with the shifting head, by means of a pro-
jection on same. There is a slit or opening in the moveable plate for the saw to work
10. The saw in the fixed head, works within a similar slit in the rectangular frame
or table. The shifting saw is made to rotate by means of a belt pulley fixed on its
spindle, driven by another shifting pulley on a countershaft. The grooving saws and
the fixed cross-cut saw are driven by a pulley fixed on their spindles; the driving
pulley being fixed on the countershaft.
In another modification I may make the pulley on the countershaft which drives
the shifting saw, to be moved along its shaft by a bracket from the shifting head; the
shifting head and pulley moving together.
Dated this 22nd dare ne su 1000
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Applicant's Agents.
COMPLETE SPECIFICATION.
Combined Double Cross-cut, Squaring-off, and Grooving Machine.
I, JOHN RAMSAY STEWART, of 23 Cotton Road, Dundee, in the County of Forfar,
Machine Maker, 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 objects of my invention are to cross-cut and square off wood planks to a given
length, quickly and accurately, and to cut one or more grooves in same, in an improved
manner and by means of improved apparatus.

page_text: drawings mastrate the method or carrying
out my invention according to one modification.
Fig. 1. (Sheet No. 1.) represents an end view looking on A. A. and
Fig. 2. a side view of the machine.
Fig. 3. (Sheet No. 2.) represents a plan of the machine.
Fig. 4. a part section of the shifting head bracket and its driving pulley, and
Figs. 5. and 6. a section at B. B. and a section at C. C. respectively of the screw
and nut for traversing the shifting head.
Figs. 5. and 6. are drawn to a larger scale.
In these drawings the same reference letters and numerals are used to mark the
same or like parts wherever they are repeated.
In carrying out my invention, I employ a spindle 7., running in bearings 8. and 9.,
upon which are fixed the grooving saws or saw 10.-in my drawings I have only
shown one grooving saw-and one cross-cutting saw 11.; the grooving saws or saw
being at one end of said spindle, the whole combination forming the fixed head of the
machine. One, two, or more grooving saws may be on said spindle 7., side by side.
with distance pieces between them, and the saws may be of different diameters so as
to cut grooves of varying depth. Provision is made for raising or lowering the
table 12. at the grooving saws to suit different depths of grooves. 13. is the screw
used for this purpose, it being made to rotate by means of the bevel wheels 14. the
shaft 15. and hand wheel 16. The screw 13. rotates in a nut 17. fixed to the table 12..
The table 12. is held and guided in its movements by the slides 18.
In that portion of the machine used for cross-cutting, one of the saws 11. forming
part of the fixed head, is on the opposite end of the spindle 7. which carries the
grooving saws while the other cross-cutting saw 19. is fixed to a separate spindle 20.
running in bearings 52. and 53. and carried in a shifting head 21. The shifting.
head 21. is supported by two slides 22. parallel to the axis of the saw spindles, and it
may be secured in any desired position by means of a bolt and plate 23., the head of
the bolt being only shown in my drawings. The shifting head 21. is moved back-
wards and forwards by means of the screw 24., said screw being fixed and kept from
rotating at 25. The nut 26. rotates in the box 27. by means of the bevel wheels 28.,
the one bevel wheel being fixed to the nut and the other to the spur wheel 29. The
spur wheel 29. is driven by the spur wheel 30. keyed on the shaft 31. said shaft being
made to rotate by means of the hand wheel 32. The table 33. for carrying the
wood 34. while it is being cut, consists of an open rectangular frame, and moves on
rollers 35. on the two rails 36. at right angles to the saw's spindles. The table 33. is
guided by means of the slides 57.
In the open space of the before mentioned table 33. is a moveable plate 37. which
forms the table for the shifting saw. Said plate 37. is supported in slides 38. parallel
to the axis of the saw spindles and are parts of the rectangular frame or table 33.
Said moveable plate 37. is made to slide backwards and forwards with the shifting
head 21. by means of a projection 39. on same, fitting into a groove 58. on under side
of moveable plate, said groove extending the whole length of the plate. There is a
slit or opening 40. in the moveable plate for the saw to work in. The saw in the
fixed head works within a similar slit 41. in the rectangular frame or table 33. 42. is
the slit for the grooving saw 10. 43. is a plate sunk into the table, and by sub-
stituting a narrower plate the slit or opening may be made wider when more than
one grooving saw is in use. The shifting saw 19. is made to rotate by means of a belt
pulley 44. fixed on its spindle, and driven by another shifting pulley 45. on a counter-
shaft 46. The nave of the pulley 45. rotates in an arm 47. fixed to the shifting head
and is held in position by the washer 48. A feather or key fixed to the nave of; the
pulley 45. slides in a key way 49. As the countershaft 46. rotates it carries with it
the pulley 45. and when the shifting head is translated from one position to another
it takes with it the pulley 45. The grooving saws and the fixed cross-cut saw are
driven by a pulley 50. fixed on their spindle; the driving pulley 51. being fixed on

page_text: the countershaft. The countershaft is driven by the fast and loose pulleys 54., the
loose pulley being only partially shown, and it is supported in bushes 55. and 56.
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) In a combined double cross-cut, squaring off and grooving machine the use of
the moveable plate 37. actuated by the shifting head which carries the cross-cut
saw 19. substantially as described.
(2) In a double cross-cut and squaring off machine the use of the moveable
plate 37. actuated by the shifting head which carries the cross-cut saw substantially as
described.
(3) In a combined double cross-cut, squaring off, and grooving machine the com-
bination of the moveable plate 37. with the shifting head 21. substantially as and for
the purposes set forth.
(4) In a combined double cross-cut, squaring off and grooving machine the com-
bination of the moveable plate 37. the shifting head 21. with the table 33. substantially
as and for the purposes set forth.
(5) In a combined double cross-cut, squaring off and grooving machine the com-
bination of the moveable plate 37. the shifting head 21. the table 33. and the apparatus
for traversing the shifting head as illustrated by Figures 5. and 6. (Sheet No. 2.)
substantially as and for the purposes set forth.
(6) In a combined double cross-cut, squaring off and grooving machine, the
general construction, combination and arrangement of parts, substantially as and for
the purposes herein set forth, together with any mere modification or modifications
thereof.
DL: 00th ...
C
SM 1800
GEO. C. DOUGLAS & Co.,
Applicant's Agents.