Improvements in Machines for Milling and Cutting Metal.
Year: 1899

page_text: Date of Application, 13th Mar., 1899
Complete Specification Left, 13th Dec., 1899-Accepted, 24th Feb., 1500
PROVISIONAL SPECIFICATION.
Improvements in Machines for Milling and Cutting Metal.
I, HENRY CROFTS LONGSDON, Managing Director of the Firm of Messrs.
W. Summerscales and Sons Limited, of Keighley, in the County of York,
Laundry Engineers and Machine Makers, do hereby declare the nature of this
invention to be as follows, that is to say:-
:―
It relates to machines for milling and cutting metal and consists in construct-
ing and arranging the several parts forming these said machines so that they are
enabled to act upon or cut curved surfaces such as the surfaces of smoothing irons
that are to operate in contact with the rotary rollers of clothes ironing or smooth-
ing machines, said surfaces being in the arc of a circle formed concentric with
the rotary rollers in contact with which they have to act.
In carrying my invention into effect I mount a rotary cutter upon suitable
framework arranged to carry a feeding table upon which the metal to be cut is
secured, the bearings for said rotary cutter being so constructed that they may be
lowered and raised to cause the said cutter to advance towards or recede from said
table as its diameter and the size of the article being cut may determine.
The milling cutter is formed so that its series of cutting edges (whether they
are formed integrally with its body part or whether they consist of a series of
cutting tools secured thereto) are made to travel through a circular path coin-
ciding with the circle of which the curved surface to be cut, is an arc.
When the irons for an ironing machine are the articles to be treated as above
described, the longitudinal edges of the curved surfaces also require cutting to a
shape and this I effect by mounting two additional rotary cutters to the one above
described and these with their shafts or spindles at right angles to the shaft of
said rotary cutter the bearings for all of which are secured together so that they
may be made to advance towards or recede from the feed table as and whenever
desired, while the bearings carrying the two additional cutters are further arranged
so that they may be adjusted in the horizontal as well as vertical planes upon the
bearings carrying the primary cutter.
Further when the smoothing iron has to have a brass or like metal edge secured
to it, its said edge has a groove or furrow formed in it to receive said metal and this
I produce by another rotary cutter mounted in suitable proximity with one or
other of the additional cutters above described.
Motion is transmitted to the feed table from a prime motor shaft by suitable
bevel and other gear wheels or racks and pinions, while from a like motor shaft
mounted upon the main framework, motion is transmitted by an arrangement of
pulleys and driving belt which will act as desired upon the shafts or parts for
transmitting motion to the rotary cutters irrespective of their positions whether
approaching the feed table or moved at a considerable distance therefrom.
1
1000

page_text: Improvements in Machines for Milling and Cutting Metal.
I, HENRY CROFT'S LONGSDON, Managing Director of the Firm of Messrs.
W. Summerscales and Sons Limited, of Keighley,. in the County of York,
Laundry Engineers and Machine Makers, do hereby declare the nature of this
invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement, that is to say:-
It relates to machines for milling and cutting metal and consists in construct-
ing and arranging the several parts forming these said machines so that they are
enabled to act upon or cut curved surfaces such as the surfaces of smoothing irons
that are to operate in contact with the rotary rollers of clothes ironing or smooth-
ing machines, said surfaces being in the arc of a circle formed concentric with
the rotary roller in contact with which they have to act.
In order that my said invention may be readily. understood, I have hereunto
appended sheets of drawings illustrative thereof, to which, by figures and letters,
reference is made in the following description.
Fig. 1 is a side elevation of a machine for milling or cutting metal made in
accordance with my said invention.
Fig. 2 is a front elevation of parts illustrated by Fig. 1.
Fig. 3 is a plan view of said milling machine.
Figs. 4 and 5 are sectional end and front elevations respectively of a smoothing
iron which has been operated on by my said improved milling machine.
Similar letters and figures of reference indicate similar parts throughout the
several views. .
In carrying my invention into effect I mount the rotary cutter I on the shaft. 9
in bearings 2 carried by the cross slide 3 of the machine, said cross slide being
capable of vertical adjustment on the framework 19 by means of the screws 4,
operated By the bevel wheels 5 and 6, the latter of which are mounted on the
shaft. 7 and rotated by the winch handle S, and also in a horizontal direction by
means of the screw 44. The said cutter 1 is formed so that its series of cutting
edges 1ª (whether they are formed integrally with the body part or whether they
consist of a series of cutting tools secured thereto, as shown in the several draw-
ings) are made to travel througli a circular path coinciding with the circle of which
the curved surface to be cut is an arc, said are having a diameter equal to that
of the roller of a smoothing machine as is well known. The shaft 9 derives its
motion from the driving shaft 10 of the machine through the pulleys 11, 12
and 13, the last named being carried by the shaft 14 on which is mounted the
worm 15 gearing with the worm wheel 16 (or it may be put out of
gear therewith
by the lever 27) on the shaft 17, on which is also mounted the toothed wheel 18
gearing with the wheel 19 on said shaft 9.
The work to be operated upon is mounted upon the table 20, which is traversed
in a horizontal direction on its framework 20 during the cutting stroke by means
of the screw shaft 21, said shaft 21 being rotated in either direction as desired
from the driving shaft 10 through the cone pulleys 22 and 23, the latter being
mounted on the shaft 24, which also carries the pinion 25. The pinion 25 trans-
mits motion to the wheel 26 through the reversing pinions 28 and 29. The
wheel 26 is mounted on the shaft 30 carrying.the worm 31 which drives the worm
wheel 32, shaft 33, worm 34, and worm wheel 35, mounted on the clutch piece 36,
this latter being put into and out of gear with the shaft 21 by means of the
clutch 37 operated by the lever 38. For giving a quick return motion to the
table 20, the clutch 37 is put into gear with the clutch piece 39 carrying the bevel

page_text: wheel 40, this being driven from the wheel 26 through the gear wheel 41 and
bevel wheel 42 these being mounted on the shuft 43.
The irons 45, which are for ironing machines (see Figs. 4 and 5) as above
described, have longitudinal edges 46, 47 adjoining the curved surfaces 48 also
to be cut to the proper shape, and this 1 effect by mounting two additional rotary
milling cutters 49 and 50 with their shafts 51, 52 at right angles to the shaft 9.
The shafts 51, 52 are carried by the bearings 53, 53 which may be adjusted on
the cross slide 3 in a vertical direction by the screws 55, 56, and horizontally by
the screws 57, 58, while they derive their rotary motion from the shaft 14 through
the gear wheels 59 and 60, shaft 61, bevel wheels 62 and 63, shafts 64, 64",
worms 65 65*, and worm wheels 66 and 66*.
Further when the smoothing iron has to have a brass or like guide mounted in
proximity with it, its edge 45* has a groove or furrow 67 formed in it for the edge
of the said guide to take into, and this groove or furrow 67 I produce by another
rotary cutter 68 mounted on the shaft 69 in bearings 70 in proximity with the
cutter 50. The shaft 69 is preferably driven by the spur wheels 71 and 72, and
bevel wheels 71 and 72 from the shaft 52, as shown in dotted lines Fig. 2.
Should it be necessary, from the nature of the work being operated upon, to
employ a cutter 1 of very large diameter, I then preferably drive its shaft 9 from
the shaft 61, through the worm 73 and a large worm wheel mounted on said shaft 9.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
1. The herein before described improvement in the process of manufacturing
smoothing irons consisting in subjecting such irons to the actions of a rotary
cutter having its diameter equal to that of the roller upon which the curved sur-
face it produces is required to act.
2. In a milling machine for the purposes described the several rotary cutters
mounted and arranged to operate substantially as herein specified.
3. In a milling machine of the class described, a rotary cutter having its dia-
meter equal to that of the roller upon which the curved surface it produces is
required to act substantially as specified.
4. In a milling machine of the class described, a rotary cutter having its dia-
meter equal to that of the roller upon which the curved surface it produces is
required to act and having its cutting surfaces formed either integrally with the
body part or of a series of cutting tools mounted in said body part substantially
as herein specified.
Dated this 19th day of Decambon 1900.