A Combined Automatic Multiple Boring or Drilling Machine, with Means for Driving Rods or Bars into Holes Drilled and Glueing same therein.
Year: 1894

page_text: Date of Application, 29th Oct., 1894
Complete Specification Left, 29th Aug., 1895-Accepted, 29th Oct., .1895
PROVISIONAL SPECIFICATION.
A Combined Automatic Multiple Boring or Drilling Machine, with
Means for Driving Rods or Bars into Holes Drilled and Glueing
same therein.
We VICTOR JETLEY and GUSTAVE JETLEY both of No. 8 North Audley
Street in the County of Middlesex Decorators and Cabinet Manufacturers do
hereby declare the nature of this invention to be as follows:-
Our invention refers to a machine in which various operations such as drilling or
boring driving rods or bars through such holes when bored in the material and
glueing same are effected all the said operations taking place automatically.
The machine is provided with a frame or bed on or against which is permanently
or adjustably fixed a table or clamping device to contain the work which may
consist of a number of blocks which are to be connected together to form a
homogeneous slab. Sliding and suitably guided on the bed is a carriage on which
are mounted the spindles for the drills or other tools. This carriage is by suitable
gearing from a revolving shaft made to slide along the bed backwards and
forwards in the case of a horizontal machine the change of motion when the
carriage arrives at the end of its stroke being effected in any well known manner.
The revolution of the drills is obtained from the aforesaid common shaft and it
may be continuous or only when drilling is taking place. Or instead of the
carriage being made to reciprocate it may be stationary while the cramping table
may be made to slide backwards and forwards. In making very long holes or
using long and comparatively thin tools steadying blocks are employed the bearing
parts of which may conveniently be in halves or segments and be made to pivot
and be pushed away from the carriage as it advan es towards the work or the
steadying blocks may be made to slide forwards with the carriage as soon as the
latter reaches them or thereabouts on its forward travel and be left at their
proper places on its return. The rods or bars are driven into holes already made
by the same driving mechanism. The rod or bar drivers are preferably situated
below the drills and consist of a series of standards on the carriage having as an
example heads like hammers. The rods are conveniently steadied or held so as to
permit of their keeping properly in line and these steadying devices may suitably
be made to open and close to allow of the insertion of the rods and further to
permit of rods of different sizes being used. The steadying devices may also be so
fashioned as to be out of the way as the carriage advances and they no longer
become necessary.
The cramping table is preferably constructed to permit of
being raised and lowered into position so that when the holes have been drilled,
the whole slab thereon may, if the machine be so constructed, be lowered and the
bars driven in such slab while a fresh slab is being drilled above.
If the rods and blocks be made of wood or other material which is capable of
being glued, the machine is provided with apparatus for glueing. The rods are
smeared partially or wholly with glue before being driven home into their
respective holes by one or more reciprocating or revolving or otherwise moving
brush or brushes which dips or dip down into a glue trough. This glue trough is
preferably mounted in a hot water trough kept hot by means of gas jets or the like.
The holes may also be supplied with glue and this is preferably effected inter-
mittently by means of squirts actuated from sume moving part on the machine.
Or instead of using squirts there is or there are a glue container or containers

page_text: having spouts which move into the holes, deposit there some glue and then move
back clear of the holes. The glue must of course necessarily be kept in a fluid
condition by the application of heat.
Dinted this 20th of October 1904
JENSEN & SON,
77 Chancery Lane, London, W.C., Patent Agents.
A Combined Automatic Multiple Boring or Drilling Machine, with
Means for Driving Rods or Bars into Holes Drilled and Glueing
same therein.
We, VICTOR JETLEY and GUSTAVE JETLEY both of No. 8 North Audley
Street in the County of Middlesex Decorators and Cabinet Makers do hereby
declare the nature of this invention and in what manuer the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
Our invention refers to a machine in which various operations such as drilling or
boring, driving rods or bars through such holes when bored in the material and
glueing same are effected, all the said operations taking place automatically.
Figure 1 Sheet 1 of the accompanying drawings represents part of a machine
constructed according to our invention in side elevation and the remainder of the
said figure is continued on Sheet 2.
Fig. 2 Sheet 3 is a part sectional side elevation of the other side of the machine
the continuation of the end of the machine being below on the same sheet.
Fig. 3 Sheet 4 is a broken plan of the machine and the remainder of the figure
is on Sheet 5 on the left hand side thereof.
Fig. 4 Sheet 5 is a broken end elevation.
Fig. 5 Sheet 6 is a side elevation of a modified form of machine.
Fig. 6 is a broken half plan and
Fig. 6A is a broken half plan with the upper parts of the machine removed
while
Figs. 7 and 7 are respectively broken end elevation and broken transverse
section on the line X-X Fig. 6^.
Fig. 8 Sheet 7 is side elevation of a third form of machine.
Fig. 9 is a broken half plan thereof.
Fig. 9 is a broken sectional half plan of the frame of the machine with the
saddle thereon most of the other parts being removed.
Fig. 10 is a broken transverse section on the line Y-Y Fig. 9 with the clamping
table F removed and
Fig. 10 is a broken half end view.
Fig. 11 Sheet 8 is a broken front elevation of a fourth form of machine.
Fig. 11 is a detail view in plan.
Fig. 12 is a transverse section on the line U-U Fig. 11.
Fig. 13 is a detail view in part section on the centre line of one of the drills.
Fig. 14 is a detail view showing a convenient mode of driving the drills.
Fig. 15 is a transverse section on the line V-V Fig. 11.
Fig. 16 is a detail view in part section on the centre line of one of the rams or
rod drivers and Fig. 16 shows a rod driver in plan and guide tube therefor in
section.
Fig. 17 is a detail view in plan of part of the gear for closing and opening the
mouths of the guide tubes in which the rods or bars are guided before and during
their entrance into the holes drilled and Fig. 18 is a sectional elevation thereof.
Referring to Figs. 1 to 4, Sheets 1 to 5, the machine is provided with a frame

page_text: The
or bed E above which are fixed preferably two clamping tables F to contain the
work which may consist of a number of blocks A which are to be connected
together by a number of rods B to form a homogeneous slab such as is described in
the Specification of our previous British Patent No. 15,143 dated 8th August 1894.
The tables F may be of any suitable construction so as to permit of pressure
being applied to the blocks from above and from the sides in such manner that
the said blocks are screwed up together to practically form a homogeneous slab
before being placed in the machine for the purposes of having the holes drilled and
the rods B subsequently driven into such holes. Two sides of each table F have
a number of holes which permit of the entry of the drills or rods into the material
which is to be operated upon. The upper one of the two cramping tables F is
supported on a platform E' and the lower cramping table F is supported on a
similar platform E' at the lower level. In the machine shown in Figs. 1 to 4 the
platforms E and E' may be fixedly mounted on the frame E of the machine or
they are mounted as shown sliding in guides E³ in the standards Es fixed to the
bed E on the machine so as to permit of being adjusted as regards height to bring
for instance the centres of the drills to the centre or other desired level of the
work. The platforms E' and E' may suitably be raised or lowered by means of a
hand wheel E on the spindle E' on which is a worm shown by a circular dotted
live E Fig. 1.
This worm gears with a worn wheel E, the interior of which is
screw threaded to form a nut for the screw E of the platforms E' and E. The
worm wheel nut E' is supported by the bracket E. The spindle E' goes through
to the other side of the machine where the parts just described are duplicated so
that the other ends of the platforms E' and E' are moved simultaneously.
two inner ends of the platforms E' and E' are respectively connected together
by means of girders or connecting bars, E and E10 respectively so that facility
is given for sliding the cramping tables F from one end of the platforms E
and E to the other. After the platforms E1 and E2 have been adjusted to
the required height they are clamped in position by the clamping plates El
on the back of the standards E Figure 3 Sheet 5 which plates are tightened
by means of the nuts E¹. If desired for a special purpose two clamping
tables F may be connected together by their ends so that a long continuous
slab is formed but for general purposes it is most convenient on the score
of weight and facility of handling to use one table at a time unless the
cramping tables be very short. Sliding and suitably guided on the bed E is a
carriage G which has an upper and a lower girder or cross piece called
respectively G₁ and G. To a series of spindles 10 Fig. 3 Sheet 4 revolving
Sheets 3
in bearings in the girder G' are connected the drills "Figs. 2 and
and 4.
In the lower girder G2 is mounted a number of spindles K (Fig. 4 Sheet 5)
for the bar or rod driving mechanism. The carriage G is provided with a half
nut G' Fig. 2 Sheet 3 and Fig. 4 Sheet 5 having flanges on each end and mounted
capable of sliding vertically in a bracket G (Fig. 2 Sheet 3 and Fig. 4 Sheet 5)
fixed to the girder G. The half out Gif in its lowest position in its bracket G'
engages with the leading screw G. This leading screw 'G' has keyed thereon a
worm wheel G' which receives motion from a worm G8 mounted on a shaft G
in bearings in a bracket G which also has a bearing therein for that end of the
leading screw Go the other end of the leading screw being mounted in a
bracket G. The other end of the spindle G of the worm Go carries a mitre
wheel G. This mitre wheel G10 is revolved either by the nitre wheel G" or
by the mitre wheel G", the two latter wheels being loosely mounted on the
shaft G. The double friction cone G¹ is loose longitudinally but revolves with
the shaft G by means of a feather and feather way. The double friction cone G
has a groove all round in which is mounted a split collar G to which is attached
a fork G pivoted to the bracket G on the frame E. Naturally if the fork be
operated to be mid-way by spindle G18 by means of a hand wheel keyed thereon
as shown, the double cone G will not gear with either of the mitre wheels G
or G¹ and consequently no motion will be communicated to the mitre wheel CHO

page_text: nor to the leading screw G. The shaft G" has at its other end a mitre
wheel G which receives motion from the mitre wheel G keyed to the main
shaft G of the machine. The shaft G is provided with a pulley G" which
by a belt for instance is connected to an engine or other source of motive power.
The change of motion when the carriage arrives at the end of its stroke or travel
is effected by turning the hand wheel on the screw spindle G which causes the
nut G on said screw spindle to be raised or lowered whereby the forked lever G
causes one side or the other of the donble cone G to engage either with the mitre
wheel G or G as the case may be, it being clear that the mitre wheel G10 which
communicates motion to the leading screw G revolves in one direction when the
mitre wheel G is caused to revolve with the shaft G and in the opposite
direction when the mitre wheel G¹ is caused to revolve with the shaft G. lu
order to prevent an accident to the machine by reason for instance of the
operator forgetting to disengage the double cone G when the carriage has arrived
at the end of its travel, automatic tripping gear is provided which causes the half
nut G to rise and be clear of the leading screw G. A convenient mode of
effecting this consists in providing the carriage G with stops H and H
Supposing for instance the carriage has arrived at the place in its forward travel
at which it is desired that it should stop, then the stop H' strikes the pin H² on a
lever H³ pivoted to the frame E and moves the said lever H³ a certain distance
until the weighted lever H drops out of the catch in the lever H. In falling,
the weight H on the lever H' drops on to the lever He which is shown in its
lowest position in the continuation of Fig. 1 Sheet 2 resting on its stop H'.
When the lever H falls, it partially revolves the spindle E to which is keyed
one or two bell crank levers H° Figure 2 Sheet 3 the lower arm or arms of which
is or are by a connecting rod H10 or rods connected to a similar bell crank lever
or levers H which is or are mounted on a pin having its bearings in a
bracket H mounted on the frame E. and the effect obtained is that the upper
arins of the bell crank levers H and H are raised thereby striking a projection
or projections G" on the half nut G causing the latter to rise clear of the thread
of the leading screw G and consequently stopping the travel of the carriage G.
In order to allow the half nut to again engage with the leading screw G when
the operator has stopped the revolution of the screw or has reversed the direction
of revolution as afore described and he wishes to cause the carriage G to travel
back he puts his foot on the lever H3 which is pivoted near the bottom of the
frame E. This lever H¹³ has also a small arm H¼ fixed thereto and is normally
kept in the raised position by means of a spring H. To the lever arm H¹ is
connected a connecting rod H which communicates motion to the lever H
mounted at H" in such manner that the weighted lever H is raised and on being
raised partially revolves the spindle H8 thus lowering the bell crank levers H
and H and allowing the half nut G to drop on to the leading screw G.
In order to again set the weighted lever H' in the catch of the lever H³ the
operator retains his foot on the lever H until the carriage G has returned a
sufficient distance to release the pin H' from the pressure of the stop H' and allows
the spring H18 by means of the connecting rod H to draw back the lever H³ 30
that it again catches the weighted lever H*. The stop H20 limits the motion of
the levers H³ and H22.
On the conclusion of the return stroke the stop H on the carriage G engages
the lever H2 which by means of the connecting rod H₁ releases the weighted
lever H thereby tripping or raising the half nut G* clear of the leading screw G
as before described.
The main shaft G" has thereon the double friction cone I which revolves
therewith and is capable of sliding longitudinally thereon with the carriage G by
means of a feather in the double friction cone I sliding in a feather way on the
shaft G".
Freely mounted on the double cone I is a split collar 11 which by a forked
lever I is capable of being kept engaging either with the mitre wheel 13 or the

page_text: mitre wheel 1 (both of them being loose on the main shaft G") by moving the
forked lever I either one way or the other by the screwed spindle 15 operated by
the hand wheel thereon. Or if the double cone be moved centrally between the
mitre wheels 1 and I it is evident that neither of them are in gear.
Gearing with both the mitre wheels I and I is another mitre wheel [" which
is keved to the shaft I having thereon a suitable number of smaller mitre
wheels 18 which gear with wheels I mounted on the drill spindles [10 in which are
mounted the drills I". In making very long holes or in using long comparatively
flexible drills, upper and lower steadying blocks are used the bearing parts of
which are shown made in halves and each of which is pivoted at 13 in such
manner that as the carriage advances towards the work and these guides become
gradually unnecessary, the cain 1" on the carriage strikes the levers [18 which
are in one with or mounted on the same shaft 1", thus moving up (in the case of
the upper ones) and down (in the case of the lower ones) the said steadying
blocks On the carriage travelling back the cam I gradually releases the
levers and consequently the steadying blocks resume their positions with regard
to the drills assisted by springs 118 which are connected to levers 1" on the shafts ["
and to the frame E supporting the steadying blocks. Or the upper steadying
blocks I may fall by their own weight while the lower ones only are brought back
into position by springs I. Or the steadying blocks may be made in one piece
and may slide forwards with the carriage G as soon as the latter reaches them or
thereabouts on its forward travel and be left at their proper places on its return
by joining them together with chains or connecting rods which latter are made
capable of folding up between the steadying blocks as they travel forward one by
one and of opening out and causing the steadying blocks to remain in their destined
places on the return of the carriage. The steadying blocks nearest the carriage
would be connected thereto and those farthest away would be connected or fixed
to the bed or frame E. It is evident that if drills of different sizes are to be
used in this machine the steadying blocks must be made to correspond with the
different diameters of such drills.
When the holes have been drilled the upper cramping table F is removed from
its platform E and slided on to the lower platform E' and a fresh table F is put
on to the platform E¹.
The rods or bars B referred to in our aforesaid Patent Specification No. 15143
of 1894 are driven into the holes already made by the same driving mechanism and
at the same time as the holes are being drilled in the work in the cramping table F
on the platform E above, that is to say: connected to the lower girder G² (or it
might be to a number of standards fixed thereto is a number of spindles K at the
ends of which are a number of rams or rod drivers K¹ (Figures 1, 2 and 4) being
formed something like hammers each of which is in line with a hole. The object
in mounting the rams K¹ on spindles K is to allow of the partial rotation of the
rams on the axes of the spindles K clear of the ends of the guide tubes when fresh
rods are to be inserted in the guide tubes or steadying devices K2 carried on the
frame E ready for driving into the holes made. The spindles K are provided with
handles K in order to permit of easy manipulation and all these handles may be
connected so that one movement operates the whole number. The guide tubes K
are made as shewn with a slot along the top to allow of the passing along of the.
web connecting the rams K' to their spindles K. The sizes of the rams K and of
the guide tubes K' may be varied according to the sizes of holes drilled and conse-
quently according to the sizes of rods to be driven therein by using rams of
various diameters and guides to correspond. The rods B before referred to are
inserted in the guide tubes K before the carriage moves forward and when the
rams are by their handles brought into the position for driving, the said rams move
forward with the carriage G and the rods are driven into their respective holes in
the aforesaid blocks A. The steadying devices may also be fashioned as described
with reference to the drills, to be out of the way as the carriage G advances and
they no longer become necessary.

page_text: If the rods B and blocks A before referred to, be made of wood or other material
which is capable of being glued the machine is provided with apparatus for glueing.
The rods are smeared partially or wholly with glue just before they are being
driven home into their respective holes by revolving brushes L Fig. 2 Sheet 3
which dip down into two glue troughs L. The brushes L are mounted on
spindles L which are carried by levers L³ mounted on two shafts L (Figs. 1
and 2) going through the outer ends of the troughs. On the shafts L and outside
the troughs L' are two levers L³ one on each side of the machine having each a
bowl or roller Le mounted on their other ends. Mounted on the carriage G are
two pivoted cams L', one on each side of the machine which are normally kept in
place by stops Le and springs L. As the carriage G advances these cams take
over bowls L10 on the levers L" mounted on the brackets L12 fixed to the frame E
in such manner as to cause the levers L to be depressed whereby their other ends
depress the bowls L on the levers L' and thereby cause the brushes L to rise and
being covered with glue the latter is smeared on the ends of the rods B aforesaid.
It is evident that the apparatus may be arranged to smear the glue on the rods
over the whole length or only a portion thereof as shown. If ordinary glue be
used the glue troughs L' are preferably mounted in hot water troughs L13 kept hot
by means of gas jets (not shown) or otherwisc.
The holes in the blocks A aforesaid may also be supplied with glue and this is
preferably effected intermittently by means of squirts M provided it desired with a
hot water jacket M. As the carriage G nears the end of its forward travel the
cams M Figures 1, 2 and 3 strike the bowls M' on the levers M pivoted at M³ to
the frame E in such manner as to cause the forked ends Me to strike the sleeves M'
loosely mounted on the piston rods M8. These sleeves M7 are each provided inside
with a pawl or pawls M³ (merely indicated in Figure 1 Sheet 2) and the piston
rods Ms have correspondingly formed ratchet teeth (not shown) so that as the
forked ends M of the levers M' strike the sleeves M' they move inwards and the
pawls M therein convey the motion to the piston rods. The sleeves M' are
brought back to their normal positions by means of springs M10 on being released
from pressure of the levers M. The pistons may be prevented from returning
with the sleeves M' if necessary by spring pawls and ratchet teeth or in any other
convenient manner. The glue is forced out of the squirts, when the piston moves,
into spouts or tubes M". The squirts M are filled through the stand pipes M¹² up
to the top thereof which stand pipes are then closed by screwed caps M¹³, so as to
ensure the necessary level being obtained to start with and to allow of the slightest
movement of the piston to cause the glue to flow down the spouts M". The
squirts M are mounted in such manner as to allow of their being slided towards the
work and to permit of the spouts M" entering the holes in the work a sufficient
distance, and to permit of the fork ends M engaging with the sleeves M' of the
piston rods M³.
Referring to Figs. 5 to 7 the machine is provided with a frame or bed E on
which is permanently fixed a platform E. On the platform El is slided and
adjustably fixed a table or clamping device F as before described to contain the
work. Sliding and suitably guided on the bed E is a carriage G which has a
girder G carrying a nut G in which revolves a leading screw & mounted on the
frame and receiving motion by a worn wheel G' keyed thereto which is actuated
by a worm GB driven by a shaft G2 carried on brackets G bolted to the frame E.
The worm shaft G is driven by pulleys G and G and strap, the pulley G1⁹
being keyed to the main shaft G. The drill spindles 110 are mounted in suitable
bearings in the girder G¹ of the carriage G and move backwards and forwards with
the carriage, the other ends of the drill spindles I are mounted in a number of
pinions which receive revolving motion from the spur wheels 18 each wheel I"
driving two pinions 1°. In order to allow the drill spindles to move with the
carriage backwards and forwards and at the same time to receive revolving motion
they are all provided with feather ways and they slide in and out of the pinions 1°
being caused to revolve with these latter by means of feathers. The drills 1" are

page_text: guided in halved cam actuated steadying blocks 112 mounted on shafts 11 as
described with reference to Figures 1 to 4. Mounted on the saine shafts as the
spur wheels 18 are mitre wheels 16 which are driven by a corresponding number of
mitre wheels 1' keyed to the main shaft G". The main shaft has mounted thereon
three pulleys G2, G" and G" of which G" and G" are idle pulleys and G" the
driving pulley. From pulleys on a countershaft are two belts running over these
idle pulleys, one belt being straight and the other one crossed so that when the-
machine is stopping the pulley G" revolves in one direction and the pulley G" in
the other direction. When the double forked striking bar G" is moved out then
the belt which was running over the loose pulley G will be moved on to the-
pulley G" and the carriage will move forward and the drills will revolve and move
forward with it, while if the striking gear G" be pushed inwards the belt which
was running on the other loose pulley G* will be shifted on to the driving
pulley G and causes revolution in the opposite direction thus conveying the
reverse motion by means of leading screw G to the carriage G and at the same-
time reversing the direction of revolution of the drills. In order to prevent the
carriage G from going too far in either direction it is provided with a stop H
which works on a rod H provided with adjustable stops H3 and H. The
carriage slides forwards or backwards without in any way affecting the rod H¹.
until one of the aforesaid stops H³ or H" are encountered by the stop H' where-
upon the rod H" is moved either to the right or to the left. The motion of the
rod His communicated to the striking gear by means of the weighted lever H'
which is mounted on the shaft H at the other end of which is a mitre wheel Hº.
Gearing with this mitre wheel H is another wheel H mounted on a vertical
shaft H10 which has mounted thereon a lever H23 forked at its outer end which fork
embraces a pin on the striking bar G". In order to be able to stop the carriage at
any point and to reverse the direction of motion thereof the handled bell crank
lever G18 is provided which operates the stop H³ and consequently the striking
gear. The rods B before referred to are put into the guide tubes K³ by with-
drawing the rams K' from the slots in the tubes by means of the handle K³ which
has a screw at one end which screws into a screwed boss K* on the sliding bar K.
The guide tubes K' are mounted on the platform E' at one end, pass through slots.
in the sliding bar K holes in the girder G' and are fixed at the other end to the
frame E. The tubes are open at this end to allow of the rods B aforesaid being
inserted and when these latter are pushed in sufficiently far to clear the rams Ki
the sliding bar K to which the rams are fixed is screwed up by the handle K' so
that the rams are in position and in line with the said rods B and in the guide
tubes K. All the rams K¹ are therefore simultaneously put into position for
driving the rods B aforesaid into the holes which have already been made by the
drills in the work in the table F.
Referring to Figs. 8 to 10 Sheet 7 the machine is provided with a frame or
bed E on which is mounted a sliding and suitably guided carriage G carrying a
table or clamping device F in which the work is clamped. The carriage G is made
to move backwards and forwards by means of a nut G thereon in which works a
leading screw G supported in bearings in the frame E and in a pedestal
bracket G. The leading screw has a worm wheel G7 which receives motion from
a worm G mounted on the maindriving shaft G" supported on brackets on the
frame E at the sides of the machine and on the pedestal bracket G' and ou another
bracket G28 outside of the driving gear. The drills are mounted in the drill
spindles 10 and are steadied by steadying blocks I" operating as before described
except that the separate cam levers before referred to as 11 are in this case made
in one with the outside steadying blocks of each row. Revolving motion is
communicated to the drills by means of two pinions G¹ on the main shaft G
which gear with spur wheels G on the shaft G. Keyed on the shaft G" are a
number of mitre wheels 1 which gear with the mitre wheels 1°. On the same-
shaft as these mitre wheels 1 are spur wheels 18 each of which gears with two
pinions I mounted on drill spindles 110 which revolve in bearings in the frame E..

page_text: The aforesaid rods B are put into guide tubes K' by revolving the handle K³ as:
described with reference to Figures to 74 Sheet 6 except that the slide K instead
of being mounted on the carriage G is now mounted on the frame E. This action
withdraws the rams K' from the slotted guide tubes K to allow the rods B
aforesaid to be inserted from the end. The handle is then turned back and the
rams Kare made to enter the guide tubes. As the carriage comes forward
the rams hold the rods B rigidly and as the carriage proceeds the rods enter
the holes which have been drilled the guide tubes are supported in the end of the
frame E and in the steadying blocks K which are operated by the double
ended cam 1 exactly as described with reference to the steadying blocks I
for the drills (Figures 5 to 74 and the present Figures 8 to 104). But the guide
tubes K being of larger diameter than the holes in the work it follows that as the
table Fadvances it pushes them out of the way through slots in the sliding bar K
and the frame E the overhanging ends of the guide tubes then being supported by a
number of rollers K indicated in Figure 8 only. The carriage G is automatically
stopped at the end of each stroke by means of a stop H' on the carriage G and
intermediate gear as before described with reference to Figures 5 to 7 Sheet 6
except that here the handled lever G is duplicated.
Referring to Figures 11 to 18 Sheet 8 the machine is provided with a frame E
on which is adjustably fixed in a vertical position on a horizontal rail E' a table F
to contain the work which table may conveniently be fixed above by set screws E12
on bent arms made in one with or fixed to the frame E. Sliding and suitably
guided in a part of the frame E is a number of guide and feed screws which carry the
spindies to which are fixed the drills or other tools. The drilling and rod driving
operations take place in line with and parallel to each other that is to say the right
hand side of the machine is devoted to drilling while the left hand side is for driving
the aforesaid rods B. There are two pulleys G2 and G7 loose on the main driving
shaft Gone of which is driven in one direction while the other is for instance by
a crossed belt driven in the other direction. Midway between the two loose
pulleys G2 and G2 is designated a double friction clutch indicated by the letter I
of any suitable construction which is operated by means of a forked lever 1³
pivotted as shown, the lower part of which takes in between a fork of a double
armed lever 118 at the back of the frame E. This lever 118 also shown in plan at
Figure 11 is pivotted in the middle to the underside of the frame E this lever I'
is by its fork in front connected to a pin on a striking bar G supported and
capable of sliding in bearings on the frame E, and having a handle G On the
main shaft G are mounted mitre wheels I which gear with mitre wheels I". On
each of the same spindles which carry the mitre wheels I is mounted a spur
wheel 18 each of which gears with two pinions 1°. These pinions 1º are each keyed
to the guide or steadying tubes 11 as shown in Figs. 11, 12 and 13.
cause the drills 1" to revolve with the guide tubes I" the latter are provided with
longitudinal featherways and the drills have feathers 1" (Figure 13). The guide
tubes as to their lower ends revolve in bearings in the frame E. The upper
ends of the guide tubes revolve inside guide and feed screws G which are supported
in the frame E. These feed screws G are hollow in order to pass down outside of
the guide tubes I and their upper ends are closed by flanges G which carry the
upper ends of the drill spindles 110 and are provided if desired with ball bearings
as shown which work on the top side of the flanges on the top of the drill
spindles 10. The drill spindles 110 are screwed to or otherwise securely fastened to the
drills ". The feed screws Ge do not revolve by reason of their having longitudinal
feather ways into which take feathers G (Figure 13). The feed screws G are
screwed up and down by motion being applied in one direction or the other to the
worm wheels G' which are screwed internally and thus form nuts. These worm
wheels are prevented from moving up or down by the frame E. The worm
wheels Gare driven by worms G8 mounted on the shaft G" mounted in brackets G
on the frane E. The shaft Gs is driven by the pulley Go with a strap from the
pulley G on the main shaft G". In Figure 11 is shown a second set of pulleys G
In order to

page_text: and G to give a higher rate of speed on the return stroke. The pulleys G and G
are connected to the mainshaft by the friction gearing indicated by the letter I
which is operated from the striking bar G" in the same manner and at the same
time as has already been described with reference to the pulleys G and G" and
the main shaft G so that when the main shaft is stopped or the direction of its
motion changed as described the shaft G23 is similarly affected. The rods B
aforesaid are inserted in the slotted guide tubes K' the lower euds of which are
keyed or otherwise secured to the frame E while the upper ends are inserted
in the hollow screws G which are supported in the frame E. On the lower ends
of the screws G are screwed caps K to which are secured the rams K' by means
of the webs which project through the slots in the tubes K' see detail view
Figure 16A. The screws G are driven by the worm wheels G and worms G8
on the shaft Gas already described. The rods B aforesaid are inserted in
the guide tubes K² one by one by opening the bottom of the guide tubes which
are normally closed by levers K' (Figures 15, 17, 18 and the left hand half of
Figure 11) these levers K' are pivotted at K³ to the frame E underneath and
the springs K normally hold the other ends of the levers over the mouths of
the guide tubes. The springs are fastened to a sliding bar K behind the
frame E and this bar has a handle for easy manipulation. When the guide
tubes K are filled with the rods aforesaid and the work having the corre-
sponding holes is in a table F (Fig. 12) underneath the rod driving mechanism
the handle on the sliding bar Ko is pulled out and the levers K7 are consequently
pulled clear of the mouths of the tubes as shown in dotted lines Figure 17. When
the rods have been driven into the work the handle on the bar K is pushed in
thus closing the mouths of the tubes again. In inserting the rods one by one
the slots K in the sliding bar K allow sufficient movement to the levers K' to
insert the rods and when the levers are released the springs K' bring them back to
cover the mouths of the tubes as aforesaid. If this machine be mounted horizontally
it is evident that the levers K' and the additional parts just enumerated will not be
required in order to stop the travel of the tools 11 and K' when the top or bottom
of their travel is reached there is provided a stop H' secured to one of the flanges G
which moves up and down a rod H to which are secured two adjustable stops H
and H. The rod H is supported in frame E and at its lower end is connected to
the bell-crank lever H, the lower eud of which is forked and engages the striking
bar G by means of a pin thereon. When the feed screws G descend to the
bottom of their travel the stop H¹ encounters the stop H³ and the rod H1 is noved
down sufficiently to actuate the striking gear which disengages the pulleys G
and G" from the friction clutches indicated by the letter 1. To reverse the motion
and to cause the feed screws Go to ascend the striking bar G is actuated by hand
still further in the same direction causing the clutches indicated by the letter 1 to
engage with the pulleys G" and G" whereby the drills are started revolving in the
opposite direction and the feed screws G ascend until the stop H¹ encounters the
stop H" when the machine is again automatically stopped and the further movement
of the striking gear by hand again starts the machine in the direction to perform
its functions.
Although the means for glucing the rods before being driven home and for squirting
glue into the holes have only been shown as applied to the firstly described and
shown machine it is evident that by more or less modifying the construction of these
devices they may also be applied to the machines described with reference to
Figures 5-18 Sheets 6 to 8.'
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is.
1. A combined machine for the manufacture of a structure consisting of a
number of blocks arranged to break joint with each other and held together by a
number of rods to form a homogeneous slab which rods are driven into holes in said

page_text: blocks, the holes being drilled by the machine and the rods either glued or not
glued being driven into the holes made (either glued or not glued) by the same
machine substantially as set forth.
2. A combined machine for drilling holes and for driving rods into such holes
drilled and for glueing or not glueing such holes and rods before being driven into
the holes consisting of a frame E on which is mounted a sliding carriage G
carrying drills I" mounted in steadying blocks 112 and rams K' operating in guide
tubes K for the rods means for revolving the drills and causing the carriage G to
move backwards and forwards on the frame E, platforms E¹ E2 for carrying the
work to be operated upon, means for glueing the rods and for squirting the glue
into the holes made and gear for causing the carriage to stop automatically at the
end of its travels substantially as described and shown with reference to Figs. 1 to 4.
3. A combined machine for drilling holes and for driving rods into such holes
drilled consisting of a frame E on which the work is mounted in the middle and a
sliding carriage G carrying at one end the drills I mounted in steadying blocks I"
and at the other end rams K₁ operating in guide tubes K2 for the rods and means
for revolving the drills and causing the carriage which carries them and the
rams K¹ to move backwards and forwards on the frame E and gear for causing
the carriage to stop automatically at the end of its travels substantially as described
and shown with reference to Figures 5 to 7^.
4. A combined machine for drilling holes and for driving rods into such holes
drilled consisting of a frame E on which is mounted at one end a number of
drills also mounted in steadying blocks 112, and on which is mounted at the
other end a number of rams K₁ operating the rods which are guided by means of
steadying blocks K³ and means for revolving the drills and causing the carriage
which carries the work to move backwards and forwards and gear for causing the
carriage to stop automatically at the end of its travels substantially as described
and shown with reference to Figures 8 to 10ª.
5. A combined machine for drilling holes and for driving rods into such holes
drilled consisting of a frame E which carries the work to be operated on and on
which frame are mounted a number of drills 1 running in steadying tubes [¹ and
a number of rams K' working in steadying tubes K' and means for revolving the
drills and causing them and the rams to move up and down and gear for causing
the drills and rams to stop automatically at the end of their travels substantially
as described and shown with reference to Figs. 11 to 18.
6. The constructions of machines shown on the drawings.
Dated this 50th
L
1005
JENSEN & SON,
77 Chancery Lane, London, W.C., Chartered Patent Agents.