Improvements in Wood-carving Machines.
Year: 1896

page_text: Date of Application, 17th Nov., 1896-Accepted, 16th Jan., 1897
COMPLETE SPECIFICATION.
Improvements in Wood-carving Machines.
0
I, EMIL LOCHMAN, of 1510 Salisbury Street, St. Louis, Mo., United States
of America, Gentleman, 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 has relation to improvements in wood carving machines and
consists in the novel arrangement and combination of parts more fully set forth in
the specification and pointed out in the claims.
In the drawings,
Fig. 1 is a vertical section taken through the swinging frame on the line a-a of
Fig. 2;
Fig. 2 is a side elevation of my invention;
Fig. 3 is a half side elevation and half section taken on the line b-b of
Fig. 4;
Fig. 4 is a plan view of the casing for the spindle of one of the carving tools,
the guide yoke and block carried by it, showing also in section one end of the
pulley supporting arm from which the tool spindle derives its motion;
Fig. 5 is a transverse section on the line c-c of Fig. 6;
Fig. 6 is a transverse vertical section on the line d-d of Fig. 5 showing tho
tension pulleys carried by the opposite end of the arm shown in Figs. 3 and 4,
and the driving pulley mounted in the hollow post about which the said arm is
pivoted;
Fig. 7 is a middle horizontal longitudinal section taken through the tool spindle
and its casing along a line represented by e-e of Fig. 8;
Fig. 8 is a side elevation of one end (rear end) of the spindle casing showing its
pivotal connection with the vertical bar by which the entire series of tools is
controlled;
Fig. 9 is a cross section of the spindle only, on the line ff of Fig. 7;
Fig. 10 is a plan view of the pulley secured to the spindle;
Fig. 11 is a plan view of one of the tilting plates to which the stock boards are
secured;
Fig. 12 is a section on h-h of Fig. 11'showing also iu section one of the slats
composing the stock board ;
Fig. 13 is a transverse section taken through the casing of the tracer tool
showing also its attachment to the front vertical beam of the swinging extension
of the frame;
Fig. 14 is an end view of the frame and the operating shafts carried thereby by
which the distance of the stock frame to and from the swinging frame carrying
the tools is controlled; Fig. 15 is a side view thereof;
Fig. 16 is a section of the end of one of the supporting arms projecting from
the wall and which carries the adjusting bolt by which the position of the stock
frame is controlled;
Fig. 17 is a side elevation of the same arm showing the manner of securing the
inner end of the same to the main supporting beam carried by the wall of the
building;
Fig. 18 is a plan of one of the series of vertically swinging arms of which
the horizontal swinging extension of the tool-carrying frame is mainly built up;

page_text: Fig. 22 is a section on j-j of Fig. 19;
Fig. 23 is a section on k--k of Fig. 19;
Fig. 24 is a view similar to Fig. 1 showing a modified form of swinging
extension; Fig. 25 is a top plan view thereof;
Fig. 26 is a front detail elevation of a section of tool-supporting beam forming
a part of said modified form of extension;
Fig. 27 is a section on - of Fig. 26; Fig. 28 is a similar section showing
however the tool casing in place;
Fig. 29 is a detail elevation of the vertical drive shaft carried by said modified
form of extension showing the pinion adjusting mechanism of said shaft in
section; and
Fig. 30 is a section on m-m of Fig. 29.
The object of my invention is to construct a wood carving machine wherein a
maximum efficiency will be developed, and wherein stock of unusual dimensiona
can be operated on by virtue of an improved construction of stock frame and the
stock boards carried thereby; to construct a machine which embodies a superior
form of tool carriage or casing whose tool-spindle is susceptible of a maximum
velocity of speed whatever be the augle to which the spindle may be directed
during the carving operation to construct a machine wherein the slipping of the
belts leading to the tool carriage is reduced to a minimum for high speeds of such
belts; a machine whose tool casing and parts co-operating therewith offers a
minimum amount of friction to the revolution of the belts operating the spindles;
a machine capable of diversified adjustments under all conditions of speed, and one
presenting other and further advantages to be hereinafter more specifically referred
to. In detail the machine may be described as follows:
Referring to the drawings, and particularly to Figs. 1 to 23 inclusive, 1 represents
a beam adapted to be secured to the wall of the building or shop, said beam having
brackets or arms 2 for the support of the main driving shaft 3 having fast and
loose pulleys 4 and 5 respectively and a drive pulley 6. To the exterior lower
bracket 7 and upper bracket 8 is pivoted a horizontally swinging frame 9 to
which in turn is pivoted along the vertical edge thereof a horizontally swinging
extension 10 whose free edge carries the several carving tools 11. The cutting
ends of the tools are adapted to operate against the stock 12 carried by the stock
boards 13 on the stock frame 14. The stock frame as a whole is removable and
adjustable to and from the swinging extension carrying the tools. The stock
frame is removably mounted between the lower and upper guide bars 15 between
which it is adapted to be introduced, said bars having suitable tongues to enter
corresponding depressions in the lower and upper beams of the stock frame. The
guide bars on the other hand can be adjusted to and from the tools or the
horizontally swinging extension carrying the same, along the free ends of
the outwardly projecting supporting arms 16 secured to or forming a part of the
bean 1. By such an arrangemout the stock frame can be moved bodily to and
from the tools as the nature of the work demande. The adjustment referred to is
accomplished as follows: The ends of each bar 15 carry, each along their under
surface, a casting 17 through a lug 18 of which passes a screw-threaded adjusting
bolt 19 having bearings 20 at either end of the hollowed out portion of each
arm 16, the inner end of each bolt terminating in a uut 21, and the outer end of
each, in a bevel gear wheel 22 with each of which co-operate the terminal bevel
gear wheels 23 at the ends of the vertical operating shafts 24 mounted in the
frame work at the free ends of the supporting brackets 16, the medial portions of
the shafts 24 each carrying a bevel pinion 25 which mesh with, the terminal bevel
pinions 26 of a suitably supported transverse shaft 27 controlled by a hand
wheel 28. It is obvious therefore that as "the hand wheel 28 is turned in one
direction or the other, the bars 15 will move toward or from the operating frame

page_text: carrying the tools, and thus the entire stock frame can be adjusted at the will of
the operator. It may be stated in passing that the terminal frame work carried
by the bars 16 is additionally supported by the roof or other overhead beans.or
trusses 29 of the building or factory in which the machine may be located. The
adjustment so far described is the adjustment of. the stock frame relative to its
distance from the swinging extension carrying the tools; an 1, the entire stock
frame being morcovor adapted to slide between the trausverse bara 15, it is of
course obvious that the stock frame can be thus adjusted parallel to the goneral
plane of operation of the series of tools carried by the swinging extension, thereby
enabling the operator to carve along or operate upon stock of unusual length by
simply sliding the stock frame laterally along the supporting bars 15, until every
available portion of the stock 12 has been brought in contact with the cutting
tools. 11.
It is now in order to describe the adjustments of which the individual stock
boards secured to the stock frame are susceptible: Each stock board is made up of
a series of parallel alats 30 secured at either end of the stock frame to a ledge 31
running parallel to the outer edge 32 of a tilting semi-circular plate 33 pivoted at
its free edge to the inner face of the lateral vortical bars of the stock frame, the
pivot. 34 passing through a suitable opening in the plate and entering a suitable
depression at the end of one of the series of slats (see Fig. 12), snid slats being of
a thickness or width as to come flush with the outer edge 32 of the tilting plate.
From the curved edge of each plate and in a radial liue from the pivotal point
thereof extends an arm 35 whose free ends are pivotally secured to an operating
rod 36 whose lower end connects pivotally with a lever 37 carried at each end of
the rock shaft 38 running parallel to the bottom of the stock frame, said rock
shaft being operated by the bandle 39 secured at one end to the projecting end of
said shaft. It is obvious of course that as the handle 39 is tilted one way or the
other the rock shaft will be oscillated so as to tilt the entire series of stock boards
to any angle that may be desired by the operator. The stock boards when tilted
or inclined cau thus accommodate stock pieces of maximum width or size, as the
stock operated upon and supported by cach stock board can he shifted along the
board in the spaces formed between any adjacent pair of stock boards so tilted.
When the stock: boards are once tilted or adjusted as a series to any angle, they
can be clamped and held stationary by means of the binding bolts 40 passed
through the end vertical bars of the stock frame, the smooth portion of the bolts
passing through a curved slot 41 of each tilting plate, which slot it will be
understood conforms to the are of the circle along which the plate oscillates. The
inner end of the slot carries a retaining head 42, the outer screw-threaded end
baving passed over it an operating disk 43. When the stock boards are tilted to
their proper position, the entire series can be clamped by scrowing the disks 43
tightly against the member of the stock frame to which the tilting plates are
pivoted, thereby retaining the stock boards permanently in their adjusted position.
When the stock boards as nu entire series are tipped vertically they present a plane
surface as seen in Figs. 1 and 2, on which the stock to be operated on can be
clamped opposite each tool. The terminal post of the swinging frame 9 which
constitutes the pivot for the swinging extension 10 is composed of a semi-uylindrical
open beam 44 having at either end cups 45 for the reception of the pivotal
bearings 46 carried by the swinging frame 9. Within the hollow post 44 are
disposed a series of supporting bearings 47 formed by the inner ends of the
arms 130 of the frame 9, which. penetrate the post through suitable cut-a-way
portious 131, and terminal bearings 48 secured directly to the hollow post. for the
support of the vertical shaft 49 from which motion to the tools is imparted as
subsequently to be explained, and which carries a drive pulley 50 operated from
the main belt wheel 6 by a belt 51. About the shaft 49 are disposed a series of
grooved pulleys 52 over each of which passes a belt 53 operating the tool spindle
as hereinafter more fully explained. The swinging extension 10 is built up as
follows: Embracing the post 44 about the medial portion thereof is an arm 54

page_text: pivoted along the outer surface of the post. The portion embracing or spanning
the post extends a sufficient distance beyond the post to allow the arm 54 a
swinging motion in a vertical plane about its pivotal points 55, the short end of the
arm being adapted to carry a counterweight (not shown). Arms 56 similar to the
arm 54 are pivoted to the post 44 except that instead of embracing the post as does
the arm 54 they are pivoted along the iunor surface thoreof as seen in dotted lines
in Fig. 18. The object of the arm 54 spanning the post is to make provision for
a counterweight as above specified. The medial portions of the series of arms 54
and 56 are pivotally connected by a rod 57. The free end of each arin is forked
and between the members of the fork is pivoted a block 58, said block being
adapted during the vertical swinging motion of the arms 54 and 56 to remain in a
vertical position about its pivotal points. Pivotally embracing the opposite free
ends of each block 58 are the ends of a U-shaped bracket 59, the basis of
the "U's" being secured to the front vertical tool-supporting beam 60 of the
swinging extension 10. By the arrangement just described n universal joint results
which thus secures the beam 60 to the arms 54 and 56, said beam being adapted to
oscillate in a horizontal plane about the pivotal points of the U-shaped brackets.
It is in addition free to accommodate itself to the vertical swinging inotion of the
pivotally connected series of arms 54 and 66. So that, a universal movement can
be thus imparted to the tools carried by the terminal bean 60. To further assist
in balancing the series of arms 54 and 6 in their vertical swinging motion, I
provide a counterbalancing arm 61 pivoted to a bracket 62 carried by the post 44,
and properly counterweighted, the free end being connected by a link 63 to the
upper bracket 59 of the series. Two of the blocks 58 of the series, viz., that
pivoted at the end of the arm 54 and the arm 56 below it, are provided each with
a curved bearing plate 64 against which the beam 60 can be clamped when once
adjusted to any desirable position in the horizontal plano in which it is adapted to
Oscillate about the pivotal point of its supporting brackets 59. The clamping thus
into position is accomplished by the binding screw 65 passing through the beam 60
and the base of the U-shaped bracket as best seen in Fig. 18.
Now that the variable adjustments of which the swinging extension 10 and the
tools carried thereby are susceptible have been described, it is in order to describe
the mechanism by which the several tools are operated or set in motion. Pivoted
to the post 44 in a manner similar to the arms 54 and 56, are a sories of arms 66
also pivotally connected to the rod 57. The ends of the arns 66 which embrace
the post 44 comprise a short arm 67 and a transverse arm 68 (see Fig. 6). Ou
the arm 68 are adjustably mounted the belt tension pulleys 69 by which the belt 53
coming from the grooved pulley 52 is guided. The said pulleys are adjusted along
a slotted guide 70, being clamped in any desirable position by the clamping disks
or cups 71 passed over the screw-threaded ends of the bolts 72 carried by the
sbafts of snid pulleys (see Fig. 5). The laps of the opposite end of the belt 53
pass over the terminal pulley 73 of the arin 66, said pulley rotating in a vertical
plane, whereas the tension pulleys 69 revolve in a horizontal planc. The belt
thence passes between the vertically rotating guide pulleys 74 mounted in the
horizontally swinging guido block 75, which latter is pivoted between the outer
arms 76 of a yoke 77 which by its encircling rings 78 loosely embraces the casing
of the operating spindle 80 of the carving tool, the said rings encircling the casing
ou either side of the enlarged lateral extension 81 by which the spindle casing is
coupled to the beam 60 as subsequently explained. To ensure a firm connection
between the end of the arm 66 and the spindle casing and the parts carried thoreby,
and to prevent the latter from ragging, I connect the guide block 75 and said
arm 66 by a strap 82 one end of which is secured along the outer surface of the arm,
the strap being then passed around a suitable depression 83 of the block 75 and the
opposite end of the strap being secured to the free eud of one of the members of
the fork 84 between which the terminal pulley 73 is mounted. The belt 53 finally
passos around the pulley 85 secured to the spindle within the open chamber 86
formed by the walls of the lateral extension 81. The manner of securing the

page_text: spindle casing to the front beam 60 and the detailed construction of the casing are
as follows: In the first place the pulley 85 is composed of two sections one of said
sections having a polygonal or square opening 87 (see Fig. 10) passed over a
correspondingly polygonal or square portion of the tool spindle, and a second
Bection having a smaller round opening 88, the two sections being secured together
by bolts 89 (see Fig. 7), the pulley being confiued within the chamber 86 of the
lateral extension. The pulley is introduced into the open end of the chamber 86
before the spindle of the tool is slipped through the central openings of the two
sections. The spindle has a central longitudinal passage 90 which communicates
with an oil cup 91 secured at one end of the spindle casing. The spindle is free
to rotate within the casing, the oil from the oil cup flowing freely from the cup
into the central passage of the spindle and the lateral passages 92. The oil cup
is provided with a cap which is unscrewed when it becomes necessary to refill the
cup. The lateral extension 81 of the spindle casing has a shoulder 93 adapted to
rest against the annular base 94 of a suitable socket formed in the beam 60, the
reduced exteriorly screw-threaded end of the extension projecting from the outer
face of the beam 60, and having a suitable cover 95 passed over it, the parts thus
connected being further secured by a binding screw 96 passed through the aligning
screw-threaded openings of the cover and spindle extension (see Figs. 3 and 7).
The extension of the tool spindle casing acts as a pivot about which the entire
spindle and tool carried thereby can be revolved, and thus directed in any desirable
direction. We have already seen of what movements the beain 60 and the
swinging extension 10 are susceptible; we now see that the tool spindle can be
tilted in a vertical plane with respect to the beatn 60; any movement of the tool
spindle and beam 60 carrying it in a vertical plane is accommodated by the
yoke 77 which is free to revolve in such a plane about the spindle casing; any
movement of the tool spindle and bean 60 carrying it, in a horizontal plane is
accommodated by the guide block 75 which is adapted to swing in such a plane;
the vertical movement of the tool carrying beam is further accommodated by the
pivoted arms 66 carrying the torminal pulleys 73; the rotation of the spindle
casing about its pivot is likewise accommodated in its variable positions by the
same parte. Thus it is that whatever be the direction of the tool spindle and
whatever the speed of the driving belt 53, the spindle will revolve with like
facility with a minimum amount of friction, and further with absolutely no danger
of the belt slipping from the pulleys over which it runs, and by which it is guided.
In order to tilt the several tools simultaneously, the rear ends of their spindlo
casings are pivotally embraced by the side walls 97 of the slots or openings 98 of
a connecting bar 99 (see Figs. 2, 7, and 8). The middle one of the series of tools
constitutes the tracer 100 the rear end of which is provided with a handle 101 by
which the entire series of tools is simultaneously controlled and tilted (see Fig. 2):
The tracer of course does not revolve, but like the spindle casinga of the cutting
tools has a casing 102 pivotally secured to the beam 60. The medial portion of
the tracer casing has an annular lateral bearing surface 103 co-operating with a
correspondingly shaped surface of a brake block 104, the said block being held
adjacent to the tracer casing by the bolts 105 and 106, the latter being provided
with a binding disk 107 to firmly clamp the tracer casing when it, and the series of
tools it controls, have been tilted to any suitable angle. During the operation of
carving, the tools revolve with great rapidity, and they scatter splinters, shavings,
etc., about them with great velocity, and to shield the eye of the operator I provide
the upper tool of the series with a circular plate or similar shiold 130 loosely
passed over the tool casing, said shield being adapted to accommodate itself to all
the angles of the casing and temporarily held on said casing against slipping by n
pivoted arm 131' having a terminal slit 132 through which passes a bolt 133
adjustably securing the pivotal arm to the arm 66 (see Fig. 4).
It was stated at the outset that the stock frame was replaceable. I have
accordingly shown in Figs. 19 to 23 inclusive, a modified form of frame used in the
carving of piano, table and similar legs, the frame being adapted to be inserted

page_text: between the guides 15 upon the removal of the frame first described. The
modified form comprises a lower and upper horizontal beam 108, and terminal
vertical beams 109, 110. The front vertical beam has disposed thereon a series of
rotatable stock holding spindles 111 mounted in suitable bearings 111' and each
carrying a worm wheel 112 with which co-operates a worm pinion 113 disposed
along a vertical shaft 114 mounted in suitable bearings, and carrying a pinion 115
which co-operates with a pinion 116 at the end of a short rotatable shaft 117
controlled by a hand wheel 118. The stock is placed between the spindles 111
and the opposite co-operating dead spindle 119 carried by the adjustable sliding
bar 120. The dead spindles are composed of a series of screws 121 adjustable
within their bearings 121' and after being once adjusted to hold the stock at that
end, the said spindles are prevented from working loose or unscrewing by the
binding screw 122 projerting from the side of the bearing within which the dead.
spindle operates. After the sliding bar 120 has been adjusted to accommodate the
length of the particular stock inserted between the spindles 119 and the rotating
spindles 111, its lower and upper ends are firmly clamped to the guide bars 15 by
the clamping plate 123 pivoted between the ends of the arun 124 of a suitable
casting embracing the ends of the bar. The pivoted plate is provided with an
operating screw 125 having its inner end pressing against a bearing plate 126.
Upon turning the screw in the proper direction, the clamping plate will be tilted
so as to bring its short arm firmly against the side of the beam 108, and thus
securely hold the bar 120 in place. The lower and upper members 108 are
provided with division marks 126 for properly adjusting the movable bar 120. By
means of the hand wheel.118 the entire series of stock pieces can be rotated
between their spindles and thus the entire series can he carved or operated on at
all points.
As seen in Fig. 7, the oil cup is screwed into the spindle casing, its inner conical
depression bearing against a similar conical projection of the tool apindle, by which
arrangement more or less pressure can be brought against the rotating spindle,
.causing the rotating pulley 85 carried by the spindle to bear more or less firmly
against the inner walls of the chamber 86, and thereby taking up any lost motion
of said spindle. A band 151 passes over the screw-threaded exterior of the cup
which is brought to bear against the free edge of the casing in any position of
the oil cup. The inner end of the oil cup acts therefore as n brake for the rotating
spindle.
To overcome the objectionable feature of subjecting the belt 53 to the twisting
which it undergoes by passing over the horizontally disposed pulley 52, tension
pulleys 69 and vertically disposed pulley 73 of the arm 66, I provide means as
shown in the modified construction in Figs. 24, 25, whereby this objection is
avoided. Each belt passes over a vertically disposed grooved pulley 200 mounted
along the inuer wall of the hollow post 44', the shaft or spindle of said pulley
baving formed integral therewith a bevel friction pinion 201 which meshes with a
corresponding friction pinion 202 slidingly feathered (in the usual well known way)
to the vertical drive shaft 49', the latter being guided in guide bearings 203 carried
by the hollow post 44'. Keyed or otherwise secured to the shaft 49' and normally
in contact with the base of each pinion 202 is an exteriorly screw-threaded
sleeve 204 having a basal limiting flange 205, the said sleeve having passed and
clamped about it the adjusting clamp 206 whose embracing arms are interiorly
screw-threaded to enable said clamp to be scrowed along the sleeve. The free
enda of the clamp are secured together by a bolt 207, upon the loosening of
which the clamp can be freely turned about the sleeve to or from the pinion 202,
whereby the frictional contact between the said pinion and the pinion 201 driven
by it is carefully adjusted and regulated, thus avoiding all possibility of slipping
between the two pinions. The belt 53' thence passes without being twisted, to the
block 75 as already described in connection with the previous figures, being
properly tightened by the adjustably weighted belt tighteners 208 pivotally
carried by the rod 57 which connects the arms 541 and 561. In the modified

page_text: form shown the rearward extensions of the arms 541 and 56' are provided with
balancing weights 209 carried at the lower end of a link 210 by which said rear
extensions are connected. Again, in the modification shown on the last sheet
of drawings, provision is made for accurately mounting the tool casings along
the tool-supporting beam 60' whereby the centers of oscillation of the several tools
of the series shall be in perfect vertical alignment. This is accomplished a
follows: Disposed along the tool-supporting boam 60' are a series of circular'
openings 211 (corresponding in number of course to the number of tools employed)
whose walls are made more or less yielding by reason of the communicating'
slots 212 cut from the material of the beam. Ench opening 211 is adapted to
receive an annular ring 213 adjustable between the opposite fac s of the beam, to
an extent depending on the thickness of the heam at that point, and the ring when
once adjusted, is clamped in place by the tightening bolts 214 passing through the
walls of the slots 212, said bolts when driven home being adapted, by reason of the
yielding quality given to the walls of the opening 211, to clamp said walls firmly
about the said ring and hold the latter in place. The several rings 213 serve to
directly support the lateral extensions 81' of the several tool casings, so that it is
obvious that by a careful vertical alignment of the several rings within the tool-
supporting beam 60', the tool casings and their tools will correspondingly be
brought into absolute vertical alignment and thus permit the attainment of most
accurate results in the carving of several pieces of work at one time, the several!
pieces operated on all being absolutely uniform as to the depth to which tho
original stock was cut. The specific manner of mounting each tool casing in the
ring 213 is illustrated in Fig. 28. The end faces of the ring are provided with
grooves 215 for the reception of ball bearings 216 against which the basal!
shoulders 93 of the lateral extensions 81 are adapted to bear. The cover 95¹
which is passed about the screw-threaded end of the extension 81 bears against
the ball bearings 216 along the opposite face of the ring, being secured to said
screw-threaded end by the screw 96. The ball bearings enable the tool casing to
oscillate with a minimum amount of friction, enabling the operator to tilt with
little effort the whole series of tools to any desirable angle. The series of tools.
are balanced and stiffened by the counterpoise weight 217 carried at one end of ai
cable 218 whose opposite end is secured to the upper end of the bar 99' connecting
the rear ends of the spindle casings. The cable passes over a guide pulley 219.
mounted at the top of the upper extension of the tool-supporting beam 60, and
thence over a pulley 220 carried at the end of an arın 221 pivoted to the top of
said extension. By pivoting the arm 221 it readily follows the arms 54, 56'
in their vertical sweep. The weighted end of the cable passes over a
pulley 222
on top of a bar 223, pivotally connected to the arms 54', 56'. The weight 217 is
guided along said bar by partially embracing the faces thereof as best scen in
Fig. 25.
Having now particularly described and ascertained the nature of my said inven
tion, and in what mauner the same is to be performed, I declare that what I
claim is,
1. In a carving machine, a suitable horizontally swinging frame, a swinging
extension forming a part of the same, a series of tools carried by the free end of
the said extension, an upright stock frame comprising a series of adjacently
pivoted stockboards adapted to be tilted about their pivotal points to accommodate
variable dimensions of stock, means for adjusting said frame to and from the
extension, said frame being adapted to slide in a plane parallel to the working
plane of the tools carried by the extension, substantially as set forth.
2. In a carving machine, a suitable upright stock frame comprising a series of
adjacently pivoted stock boards adapted to be tilted about their pivotal points to
accommodate variable dimensions of stock, terminal tilting plates for said boards,
an arm projecting from each plate, a general operating rod connecting the several
arms, a rock shalt, an arm connecting said shaft with the operating rod, a tilting.

page_text: lever for said rock shaft, means for retaining the tilting plates in any desired
position, a swinging frame, and a series of tools pivoted to the free end thereof for
co-operating with the stock boards in any of their tilted positions, substantially as
Bet forth.
3. In a carving machine, a horizontally swinging fraine, a swinging extension
forming a part of the same, a terminal beam carried by the said extension and
adapted to be operated in a vertical plane, a vertical stock frame with which said
extension is adapted to co-operate, suitable supporting arms or brackets, guide bars
mounted transverse to the free ends of the supporting arms, and adapted to hold
between them said stock frame, adjusting bolts mounted in the supporting arms
and passing through suitable lugs secured to the guide bars, and means for operating
said bolts and thus adjusting the position of the frame and guide bars along the
supporting arms or brackets, substantially as set forth.
4. In a carving machine, a horizontally swinging frame, a swinging extension
pivoted to the same, a series of arms pivoted at their inner ends and forming a part
of said extension, said arms adapted to swing jointly in a vertical plane about their
pivotal points, a tool-carrying beam disposed along the free ends of said armis,
pivoted blocks connecting said beat with the arms and adapted to be held in a
normally vertical position during the operation of the machine, said beam being
adapted to oscillate in a horizontal plane, a suitable shaft and drive pulleys carried
by the swinging frame, tools mounted on the front beam of the extension, and drive
belts connecting said tools with the pulleys on the drive shaft, substantially as set
forth.
5. In a carving machine, a swinging frame adapted to be secured to the wall of the
building, a swinging extension forming a part of the same, a hollow post forming
the pivotal point for said extension, a series of vertically swinging arms pivoted to
the post, one of said arins embracing the post and adapted to carry a counter
weight at the outer end of its embracing portion, an upper arm pivoted to a
bracket leading from the post and carrying a counterweight at the short end
thereof, a link connecting said upper arm to the adjacent arm of the series of
pivoted arms, a pivoted block carried at the free ends of the vertically swinging
arms, a tool-carrying beam having a series of vertically disposed U-shaped brackets
whose arms are pivoted to the free ends of the tilting blocks thereby permitting
the tool-carrying beam to oscillate in a horizontal plane, a second series of arms
pivoted to the post and having disposed at either end suitable pulleys, a series of
tool casings disposed along the tool carrying beam, a pulley carried by each casing,
a pulley-supporting shaft mounted in the hollow post, belts connecting the several
pulleys, and a general connecting rod pivotally secured to the entire series of
arms whereby the entire series of arms and the tool-carrying beam can swing in a
vertical plane, substantially as set forth.
6. In a carving machine, a suitable swinging extension, a post forming the
pivotal point of the same, an arm having a forked end embracing the post, a
suitable guide-way in one of the members of tho fork, belt-tension pulleys adjustably
mounted in said guide way, and a terminal pulley carried by the free end of the
arm, substantially as set forth.
7. In a carving machine, a suitable tool casing, means for pivotally securing
said casing to the frame of the machine for allowing the rotation of said casing in
a vertical plane, a yoke embracing the casing and adapted to oscillate in a vertical
plane but at right angles to the plane of rotation of the casing, aud a pivoted
guide block carried by the yoke and adapted to oscillate in a horizontal plane,
substantially as set forth.
8. In a carving machine, a suitable tool casing, a lateral enlarged extension
forming a part of same, means for pivoting said extension to the frame, a chamber
within said extension, a tool spindle passing through the casing and having a pulley
secured thereto within the chamber, a yoke having encircling banda embracing the
casing on either side of the extension, said yoke adapted to swing in a plane at
right angles to the plane. of rotation of the casing, and a guide block pivoted

page_text: between the arms of the yoke and adapted to oscillate in a horizontal plane at right
angles to the plano of oscillation of the yoke, said guide block carrying guide
pulleys, substantially as set forth.
9. In a carving machine, a suitable tool carrying heam, vertically swinging
supporting arms for said beam, intermediate connections between said arms-and
beam for permitting the swinging of the latter in a vertical plane and allow
simultaneous movement of the same in a horizontal plane, a suitable tool casing
pivoted to said beam, a tool spindle passing through the casing, moans for rotating
said spindle, a yoke embracing the casing and adapted to swing in a plane at right
angles to the plane of rotation of the casing, and a guide block pivoted to the yoke
and adapted to swing in a horizontal plane, substantially as set forth.
10. In a carving machine, a tool casing adapted to rotate in the plane of its
longitudinal axis, a yoke pivoted to the casing and adapted to oscillate in a plane
at right angles to the first plane, and a guide block pivoted to the yoke aud
adapted to oscillate in a plane at right angles to both the aforesaid planes,
substantially as set forth.
11. In a carving machine, a swinging extension, a series of vertically swinging
arms forming a part of the same, a vertically oscillating block pivotally carried
by the free ends of said arms a tool carrying beam pivoted to the free ends of said
blocks and adapted to oscillate in a horizontal plaue, a bearing plate forming a
part of said blocks, and a binding screw passing through the beam and adapted to
be scrowed against the bearing plate to retain the beam in any adjusted position,
substantially as set forth.
12. In a carving machine, a suitable beam adapted to be secured to the wall of
n building, supporting arms or brackets projecting from the same, guide bars
mounted transverse to the brackets and adapted to hold between them a suitable
sliding stock frame, adjusting bolts mounted in the supporting arms and passing
through suitable lugs secured to the guide bars, gear wheels carried by the outer
ends of the adjusting bolts, operating shafts having gear wheels moshing with the
aforesaid gear wheels and ineans for turning the operating shafts whereby the
guide bars and stock frame confined between them is adjusted along the supporting
arms, substantially as set forth.
13. In a carving machine, a tool-carrying beam, a series of tool casings pivoted
to the same, a rod connecting said series, a tracer casing likewise pivoted to the
beam and connected to the tool series, a brake block co-operating with the tracer
casing, and a binding bolt for binding the tracer and tool series connected thereto
when said series are tipped to any desirable angle, substantially as set forth.
14. In a carving machine, a suitable spindle casing, a spindlo mounted within
the same, a pulley on said spindle adapted to bear against the inner walls of said
casing, an oil passage in said spindle, and an oil cup secured to the casing and
menus for adjusting it to bear against one end of the spindle and vary the pressure
of the pulley carried by it against the inner wall of the casing, substantially as
set forth.
15. In a carving machine, a suitable tool casing, a spindle for the same, a
pulley on said spindle, a suitable drive belt for said pulley, a suitable shield
carried by the casing, and suitable connections between the shield and the frame
of the machine for permitting the shield to accommodate itself to the variable
Inovements of the casing and spindle carried by it, substantially as set forth.
16. In a carving machine, a swinging extension having a series of vertically
sweeping arms, a block pivoted to the free end of each arm and adapted to retain
a vertical position during the sweep of said arms, a terminal tool supporting beam,
a series of U-shaped brackets secured thereto, cach bracket having its arms
embracing the pivoted block carried by the arms at opposite ends of the block,
thus retaining the tool supporting beam in a vertical position during the sweep of
the arms, substantially as set forth.
.
17. In a carving machine, a suitable swinging frame, a swinging extension
pivoted to the same, a hollow post carried by the end of the swinging, frame and

page_text: forming the pivotal point for the swinging extension, a series of arms carried by
the swinging frame and entering the post through suitable openings in its walls
approximately to the center or axis thereof, a drive shaft carried by said arms
within the post, a series of pulleys disposed about said shaft, a series of tool
spindles carried by the free end of the swinging extension, pulleys carried by the
tools, and a series of belts counecting the pulleys on the drive shaft with the
pulleys on the tool spindles, substantially as set forth.
18. In a carving machine, a swinging extension having a series of arms sweeping
in a vertical plane, a series of pulleys carried by each arm, a series of tool spindles
carried by the free end of the swinging extension, a pulley for each spindle, a
pulley guide block connected to the tool spindle, and a strap socuring or connecting
said guide block with the free end of each of the vertically sweeping arms,
substantially as set forth.
19. In a carving machine, a swinging extension having a series of arms sweeping
in a vertical plane, a series of pulleys carried by each arm, a series of tool spindles
carried by the free eud of the swinging extension, a pulley for each spindle, and
a drive belt passing over the series of pulleys of each arm and tool spindle,
substantially as set forth.
20. In a carving machine, a suitable frame, a swinging extension forming part of
the same, a drive shaft carried by the said frame, adjustable friction pinions carried
by said shaft, pinions carried by the extension and meshing with the pinions carried
by the shaft, pulleys driven by the pinions mounted in the extension, suitable tools
casings, spindles for the same, and drive belts connecting said spindles and pulleys
mounted in the extension, substantially as set forth.
21. In a carving machine, a suitable drive shaft, a piuion slidingly feathered
thereon, an exteriorly-screw-threaded sleeve keyed to the shaft, and an interiorly
screw-threaded clamp embracing said sleeve and adapted to bear against the base
of the pinion whereby on screwing the clamp in one direction along the sleeve, the
position of the pinion on the shaft may be shifted, and a limiting flange forming
part of the sleeve for limiting the motion of the clamp in the opposite direction,
substantially as set forth.
22. In a carving machine, a suitable frame, a tool-supporting beam carried by
said frame, a series of openings formed in said beam, a ring adapted to be adjusted
and clamped within each opening, each ring being adapted to support the tool
casing, substantially as set forth.
23. In a carving machine, a suitable frame, a tool-supporting beam carried by
Baid frame, a series of circular openings formed in said beam, suitable slots cut
lengthwise of the beam and communicating with the openings whereby the walls
of each opening are made yielding, bolts passed through the walls of the slots, a
ring, baving annular depressions formed along its terminal faces, adapted to be
inserted into the openings and adjustably clamped within the opening by the
tightening bolts, a tool casing having a lateral extension adapted to be inserted in
the ring, and having a shoulder adapted to bear against suitable ball bearings
interposed between it and one of the annular depressions formed in the ring, a
screw-threaded end forming a part of the lateral extension of the tool casing, a
cover adapted to be screwed over said screw-threaded portion, said cover being
adapted to bear against suitable ball bearings interposed between it and the other
annular depression of the ring, and a screw securely fastening the parts in position,
said screw passing through the cover and tool-casing extension, the rings of the
machine being adapted to be brought into perfect vertical alignment, whereby the
centers of oscillation of the entire series of tools is also brought into accurate
vortical alignment, substantially as set forth.
F. WISE HOWORTH,
46 Lincoln's Inn Fields, Loudon, W.C., Agent for the Applicant.