Improvements in Surface-grinding or Planing Machines.
Year: 1889

page_text: COMPLETE SPECIFICATION.
Improvements in Surface-grinding or Planing Machines.
I, ELWIN RUFUS HYDE, of 29 Osgood Street, Springfield, Massachusetts, United
States of America, Manufacturer, do hereby declare the nature of my invention, and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
This invention relates to improvements in machines for planing metal surfaces by
grinding, operating in many respects similar to the well known metal-planing machines
in which a tool is used for removing the stock; but the grinding means in the present
class of machines consists of a rotatable grinding wheel or disk suitably supported
and driven, the work to be operated upon thereby being placed upon and carried by a
table or platen, which under suitable driving mechanism is given a reciprocating
motion in a horizontal plane upon its supporting and guiding bed and in proper
relation to said grinding wheel. And in the class of grinding machines to which
this invention particularly relates, water is to be supplied to and upon the face of
the grinding wheel, or upon the face of the metal being ground thereby, for the
purpose of preventing an expansion of the metal and consequent inaccuracy in the
plane surface.
The object of my present invention is principally to provide for the conveyance of
water to and upon the grinding wheel or the work being ground thereby, for then
securing its disposition in the machine whereby it will be confined and retained
within desirable limits, and whereby any sediment or grit will be eliminated
therefrom, and for then reconveying same to the work, and otherwise to increase the
efficiency of machines of this class; and to these ends the invention consists in the
constructions and combinations of parts all substantially as will bereinafter more fully
appear and be set forth in the claims.
In the accompanying drawings the present invention is illustrated, and similar
characters of reference indicate corresponding parts in all the views.
Figure 1, is a side elevation of the surface grinding or planing machine.
Figure 2, is a cross-section thereof on line x x Figure 1.
Figure 3 and 4 are respectively a rear view, and a cross-section on line y y of
Figure 1.
Figure 5 is a longitudinal section of the reciprocating table for supporting and
carrying the work and of the machine bed.
Figure 6 is a plan view of the table.
Figure 7 is a central longitudinal section thereof.
on the
In the drawings A, represents the stationary bed of the machine supported
standards B, and carrying near one end the uprights C, on which is guided the
horizontal slide-bar D, and adapted for a vertical adjustment by the engagement
therewith of the screw-threaded shafts E, operated through gearing a, b, on the
turning of the shaft F. Mounted upon the said slide bar D, is the sliding block G,
with which the screw-threaded shaft H, engages for a cross-feed of said block, said
shaft H, being intermittently rotated by the mechanism interposed between it and the
driving shaft. J, represents the table having on its under side the longitudinally
extending V ribs, d, guided in the V ways, f, of the bed, said table being provided
with the longitudinally extending rack K, into which meshes the gear wheel L,
mounted in suitable bearing boxes g of the bed and driven through intermediate
gearing by the main shaft M, all of said parts being generally in their construction
and combination with each other as usual and common in metal-planing machines
except as hereinafter particularly set forth.
The bed A, at its upper part and each side of its side walls h, is provided for its
whole length with longitudinally extending shallow through shaped wings or

page_text: gutters 12, closed at their ends. And inside of said walls, h, of the bed, the same
is provided with oppositely disposed longitudinal shelves 13, upon which is placed a
removable metal pan 14, of a length substantially that of the bed, or otherwise, as
desired. The pan 14 at its middle portion is provided with an aperture 15,
surrounded by a wall or lip 16, as seen in figure 5, through which aperture the
periphery of the gear L, is passed to mesh with the rack K of the table,
the provision of the surrounding lip serving to retain the holding capability of
the pan and to guard the escape or splashing of water therefrom upon and about the
said gear.
The table J, is provided with the usual groove / in one edge for the support and
guiding of the adjustable shipping dogs, m, and is for the greater portion of its
length within its ends, of the solid platen form as at k, beyond which at each end
are the depressions or pockets p, p, surrounded by the lip g, the whole being integrally
cast, and the intermediate solid platen portion k, of the table is provided with the
parallel longitudinal T grooves n, let in from its upper side, and of any suitable
number, and as so far described, the table is as usual in planer tables. Within the
upper side of the solid platen portion k, of the table near each edge thereof are
longitudinally extended gutters 17, and from the middle portion of one or both of
said gutters 17, a vertical chute or gutter 50, extends through table J, substantially
as seen in figures 4 and 6. And from the middle portion of each of the T grooves n,
a duct or passage 18 leads to the bottom of the platen, the said passages from the
T grooves being arranged with their outlets over the gutters 12, and intermediate
pan 14. From the intermediate pan 14 and each of the side troughs 12, 12, pipes
lead downwardly under the lower ends of which a tank 20 is disposed. The said
tank 20, at one top edge is provided with a spout 21, under which is located the
opening 22, of another tank 23, shown in drawings. The slide-block G, mounted on
the slide-bar D, is provided with suitable journal boxes 25 for the support and
bearing of an emery or other suitable grinding wheel 26, the extended shaft 27 of
which at one side carries a pulley 28, to be independently driven through a belt 29,
from an overhead shaft. The greater portion of the sides of said grinding wheel
and the whole of its periphery except a small are thereof at its lower portion
in surrounded by a hood or shell 30, suitably supported in a fixed position
in relation to the slide block G, by brackets 31, there being a slight space between
the inner walls of said hood and the outer surface of the grinding wheel.
There is entered at an intermediate portion of the height of said tank 23, the
inlet pipe t, of a centrifugal pump 32, driven by a pulley 33, to the outlet pipe 34,
of which a flexible hose 35 is connected, which passes therefrom to or into proximity
with the periphery of the grinding wheel, being supported in any suitable manner,
and there provided with a suitable stop-cock 36.
In the operation of the present machine with the work placed upon the table, with
the slide-block adjusted to present the grinding wheel at and upon the upper surface
thereof, and under the well known mechanism the table is reciprocated to carry the
work to and fro under the rotating grinding wheel, the slide-block being given an
intermittent cross-feed as usual.
Water being pumped from the tank 23 through the hose 35, is directed upon the
work and the periphery of the wheel, the hood 30 preventing any centrifugal
throwing of same, and thence running on to the planer table J, a portion of it flows
directly into the T slots n, and thence through the passages 18, into the pan 14,
and troughs 12 of the bed, other portions thereof at the sides of the table running
into the gutters 17, the water thence passing downwardly into the side gutters 12 of
the bed, and water within the side gutters 17 of the table which does not thus pass
off laterally will be guided longitudinally into, the end pockets p, and thence into
and through the T grooves n, and passages 18 to the said pan and gutters of the bed,
and water may pass from the surface of the table through the holes 50 into the
intermediate pan and side gutters of the bed. The water thence running through
the pipes 19, is conveyed from said side gutters and pan to the tank 20, all sediment
and particles of metal and emery etc., being allowed to drop to the bottom of said

page_text: tank 20, the clear portions thereof thence passing through the spout 21, at the upper
edge of said tank into the secondary tank 23, to be again forced by the pump to and
upon the work as before, and so on continuously as long as the grinding operation
is continued.
In Figures 1, 2, 3 and 4 is illustrated a novel construction of the abutment v, on
the slide w, against which the adjustable dogs m, on the side of the table, come in
contact in their to and fro movement to secure the operation of the usual reversing
mechanism by the movement of said slide w. The abutment v, is made in the form
of an angular latch by one arm 38, pivoted as at 39 in ear-pieces 44, of a stud,
screwed into or otherwise attached to said slide w, its other arm 41 being so formed
as to project across and beyond the upper edge of said slide into the line of travel
of said dogs m, it of course being seen that this pivoted angular arm is capable of
being quickly swung out of the line of travel of the said dogs, permitting the
withdrawal of the table in either direction without the changing the adjustment of
the dogs; as is desirable in many instances in the use of a planer.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a surface grinding or planing machine the combination with a bed having
the uprights C, the horizontal slide-bar D, and the adjustable slide-block G, and a
table adapted to be reciprocated on said bed, of a rotatable grinding wheel journaled
on said block, and a hood 30, supported on said block and nearly surrounding said
grinding wheel, substantially as described.
2. A surface grinding or planing machine bed A provided at its upper side with
the longitudinal gutters 12, 12, substantially as and for the purpose described.
3. A surface grinding or planing machine bed provided between its side walls with
the longitudinal pan, substantially as described.
4. A surface grinding or planing machine bed provided between its side walls with
the longitudinal pan 14, having the lip surrounded aperture 15, substantially as
described.
5. A surface grinding or planing bed A, provided at its upper side outside of its side
walls with the side gutters 12, 12, and between its side walls with the pan 14, having
the lip surrounded aperture 15, substantially as described.
6. A planer table comprising the intermediate platen portion k, and the end
pockets p, said platen portion having the T slots n, in communication with said
pockets and the passages 18, substantially as described.
7. A planer table comprising the intermediate platen portion, k, and the end
n, in
pockets p, said platen portion having the side gutters 17, and the T slots
communication with said pockets and the passages 18, substantially as described.
8. A planer table comprising the intermediate platen portion, k, and the end
pockets P₁ said platen portion having the longitudinal side gutters 17, and chute or
gutter 50, extending laterally from one or both of said longitudinal gutters, substantially
as described.
9. In a surface grinding or planing machine the combination with the bed thereof
with the side troughs 12, 12, and intermediate pan 14, and the slide block, G, of the
rotatable grinding wheel 26, the surrounding hood supported from said slide-block,
the reciprocating table provided with the intermediate platen portion k, and the end
pockets p, said platen portion being provided with the T slots n, in communication
with said pockets, and having the passages 18, the tank 20, and pipes 19, leading
from said troughs and pan thereto, a supplimental tank 23, and a conduit leading
from the upper part of said tank 20, to said tank 23, a pump in communication with
said tank 23, and a conduit extending from said pump to the grinding wheel,
substantially as and for the purpose set forth.
10. In a surface grinding or planing machine, the combination with the bed
thereof provided with the side troughs 12, 12, and intermediate pan 14, and the
slide-block G, of the rotatable grinding wheel 26, the surrounding hood supported

page_text: from said slide-block, the reciprocating table provided with the intermediate platen
portion k, and the end pockets p, said platen portion being provided with the side
gutters 17, and the T slots n, in communication with said pockets, and having
passages 18, the tank 20, and pipes 19, leading from said troughs and pan thereto, a
supplemental tank 23, and a conduit leading from the upper part of said tank 20 to
said tank 23, a pump in communication with said tank 23 and a conduit extending.
from said pump to the grinding wheel, substantially as and for the purpose described.
11. In a surface grinding or planing machine the combination with the bed thereof
provided with the side troughs 12, 12, and intermediate pan, 14, provided with the
lip surrounded aperture 15, the driving gear journaled in bearings of the bed and
projecting through said aperture 15, and the slide-block G, of the rotatable grinding
wheel 26, the surrounding hood supported from said slide-block, the reciprocating
table provided with the intermediate solid platen portion k, and the end pockets p, said
solid portion being provided with the T slots n, in communication with said pockets,
and having the passages 18, the tank 20, and pipes 19, leading from said troughs and
pan thereto, a supplimental tank 23, and a conduit leading from the upper part of
said tank 20, to said tank 23, a pump in communication with said tank 23 and a
conduit extending from said pump to the grinding wheel, substantially as and for the
purpose described.
12. In a surface grinding or planing machine, the combination with the bed
thereof with the side troughs 12, 12, and having the shelves 13, on its inner side
walls, the removable pan 14, provided with the lip surrounded aperture 15, the driving
gear L, journaled in bearings of the bed and projecting through said aporture 15, of
the pan, and the slide-block G, of the rotatable grinding wheel 26, the surrounding
hood supported from said slide block, the reciprocating table having the rack K, with
which said gear meshes, and provided with the intermediate platen portion k, and the
end pockets p, said platen portion having the gutters 17, and the T slots n, in
communication with said pockets, and having the passages 18, the tank 20, and
pipes 19, leading from said troughs and pan thereto, a supplimental tank 23, and a
conduit leading from the upper part of said tank 20 to said tank 23, a pump in
communication with said latter tank, and a conduit extending from said pump to the
grinding wheel, substantially as and for the purpose described.
13. In a planing machine the combination with the reciprocating table having the
adjustable dogs m, m, of the slide w, the stud secured thereto having the ear-pieces 44,
and the abutment v, comprising the angularly arranged arins 38, and 41, the former
pivotally hung in the ear-pieces of said stud and the latter adapted to be swung to
project into the line of travel of said dogs and also to be swung out of such line of
travel, substantially as shown and described.
Dated 25 Day Loo3.
ELWIN RUFUS HYDE.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, Agents for the Applicant.