Improvements in Drilling Machines.
Year: 1891

page_text: being date of first Foreign Application (in 5th Dec., 1890
Switzerland).
Date of Application (in United Kingdom), 12th June, 1891
Complete Specification Left. 25th Jan.. 1892-Accepted, 12th Mar.. 1892
Date of Application (in United Kingdom), 12th June, 1891
Complete Specification Left. 25th Jan.. 1892-Accepted, 12th Mar. 1892
PROVISIONAL SPECIFICATION.
Improvements in Drilling Machines.
We, HEINRICH HAUSER and JOHN LEEMANN, of St. Gallen, in the Republic
of Switzerland, Engineers, do hereby declare the nature of this invention to be as
follows:-
―:
The hereinafter described improvements have for their purpose to provide a
drilling machine which can be easily manipulated and applied universally; these
improvements relate principally to the adjustment at will, of the drill arm, in
particular its rotation around the pillar of the machine and ease with which the
machine can be brought into position by bringing into use transporting wheels.
Figs. 1 & 2, of annexed drawing, are respectively, a front view and a side view
of the machine.
Fig. 3 is a plan.
Fig. 4 a plan in section through A-B.
In the foot a is mounted the pillar 6 of the drilling machine, which carries the
rotary and vertically adjustable table c on which the object to be drilled is fixed.
Above this table are employed on the pillar b also vertically and rotary adjustable,
two brackets d&e one of which carries the hand wheel for pulley g, or both (as
shown in the drawing) while the other is provided with the drill mechanism. The
brackets d&e are not changeable in their relative vertical positions and the
wheels m & n mounted respectively on the shafts h & i and facing the pillar b
brought in gear with an intermediate bevel wheel o, so that by means of the latter,
rotary motion is transmitted unto the shaft i and from the latter through a pair of
bevel wheels punto the drill spindle k.
e
The two brackets d & e are fixed in position on the pillar 6 by means of clamp
screws. To the face of the bracket è is secured movably around its axis the
bracket r of the drill mechanism. The latter may consist, for instance as ordinarily,
of a drill spindle and feed mechanism.
The drill spindle k like in other similar drilling machines, is not only adjustable
in height and in inclination, (the latter through rotating the plate of the bracket »
on the face of e) but also relative to its driving gear, as the brackets d, e, may be
set at any angle to each other on the pillar b, the bevel wheel o remaining always a
central motion transmitter, as shown in Fig. 4.
The foot a of the machine is formed with three legs, in two of the said legs a
shaft s is mounted eccentrically by means of a plate or disc t, in such a manner that
when the shaft s is turned the disc will also turn in the foot bearings. The wheels u
being also mounted on the shaft s, they ascend or descend simultaneously with the
shaft, in such a manner that the lowest point of the periphery of the wheels will
come above or below the surface of the foot plate. The turning of the shaft s may
be easily effected by furnishing it with a lever v.
On the wheels having been raised a little past the foot plate, the machine can be
easily moved about; the employment of a shaft like rod to will facilitate the moving
bout of the machine.

page_text: The connection of the drill spindle k with the drill takes place through the nut
in the following manner :-The nut receives internally the tightening bush made in
two halves and held together by a circular spring in such a manner that they may
freely move in each other to a certain extent. After placing the drill into the
tightening bush the nut is screwed onto the spindle, the cone of the tightening bush
is then received by that in the spindle and thereby drawn together accordingly thus
effectively fastening the drill, perfectly central.
Dated this 11th day of Tune 1801
Improvements in Drilling Machines.
We, HEINRICH HAUSER, and JOHN LEEMANN, of St. Gallen, in the Republic
of Switzerland, Engineers, 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 hereinafter described improvements have for their purpose to provide a
drilling machine which can be easily manipulated and applied universally; these
improvements relate principally to the adjustment at will, of the drill arm, in
particular its rotation around the pillar of the machine and ease with which the
machine can be brought into position by bringing into use transporting wheels.
And in order that our invention may be more fully understood, we refer to the
one sheet of drawings filed with Provisional Specification, in which―
Figs. 1 & 2 are respectively a front view and a side view of the machine.
Fig. 3 is a plan.
Fig. 4 a plan in section through A-B.
In the foot a is mounted the pillar 6 of the drilling machine, which carries the
rotary and vertically adjustable table c on which the object to be drilled is fixed.
Above this table are employed on the pillar b, also vertically and rotary adjustable,
two brackets d & e, one of which carries the hand wheel for pulley g, or both (as
shown in the drawing) while the other is provided with the drill mechanism. The
brackets d & e are not changeable in their relative vertical positions and the
wheels m & n, mounted respectively on the shafts & i and facing the pillar b,
brought in gear with an intermediate bevel wheel o, so that by means of the latter,
rotary motion is transmitted unto the shaft i and from the latter through a pair of
bevel wheels p unto the drill spindle k.
The two brackets d & e are fixed in position on the pillar b by means of clamp
screws 1. To the face of the bracket e is secured movably around its axis the
bracket r of the drill mechanism. The latter may consist, for instance as ordinarily,
of a drill spindle and feed mechanism.
The drill spindle like in other similar drilling machines, is not only adjustable
in height and in inclination, (the latter through rotating the plate of the bracket r
on the face of e) but also relative to its driving gear, as the brackets d, e, may be
set at any angle to each other on the pillar b, the bevel wheel o remaining always a
central motion transmitter, as shown in Fig. 4.
The foot a of the machine is formed with three legs, in two of which a shaft s
is mounted eccentrically by means of a plate or disc t in such a manner that when
the shaft is turned the disc will also turn in the foot bearings. The wheels u
being also mounted on the shaft s, they ascend or descend simultaneously with the
shaft, in such a manner that the lowest point of the periphery of the wheels will
come above or below the surface of the foot plate. The turning of the shaft s may
be easily effected by furnishing.it with a lever v.
On the wheels having been raised a little passed the foot plate, the machine can

page_text: be easily moved about; the employment of a shaft like rod w will facilitate the
moving about of the machine.
The connection of the drill spindle k with the drill takes place through a nut in the
following manner :-The said nut receives internally the tightening bush made in
two halves and held together by a circular spring in such a manner that they may
freely move in each other to a certain extent. After placing the drill into the
tightening bush the nut is screwed onto the spindle, the cone of the tightening
bush is then received by that in the spindle and thereby drawn together
accordingly thus effectively fastening the drill perfectly central.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claim, is-
1st. The brackets d & e or carriers rendered adjustable towards each other
around the pillar b, or wheel o for driving and for the drilling mechanism, which
carriers in their relative positions are fixed on the pillar b.
2nd. The appliance described for the easy transportation of the drilling machine,
consisting in the eccentric shaft t, s, t, which carries the pulleys u the lower parts
of the periphery of which on turning the eccentric shaft in one or the other
direction, will come positioned above or below the surface of the foot of the
machine.
Dated this 23rd day of January 1892.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicants.