Improvements in and connected with Tool Holders for Planing Machines and the like.
Year: 1892

page_text: Date of Application, 29th June, 1892
Complete Specification Left, 29th Mar., 1893-Accepted, 20th May, 1893
PROVISIONAL SPECIFICATION.
Improvements in and connected with Tool Holders for Planing
Machines and the like.
I, BENJAMIN HESELTON MALLINSON, of Micklefield, Rawdon, near Leeds,
Engineer, do hereby declare the nature of this invention to be as follows:-
The object of my invention is to regulate and adjust the tools in the tool box
independently of each other, also when adjusting or tilting the tool box to any
angle by the use of spring washers, slotted levers, and spring lever, connecting the
tool box to the tappet gear, the spring levers act automatically and lengthen or
shorten as desired by the friction (put on by the spring washer or washers) being
overcome.
For regulating and adjusting the heights of the cutting tools independently,
each tool has its bed upon the tool holder, and is secured thereon by screws; being
upon a slide, the tools are raised or lowered by a vertical screw, and regulated
independently by their respective screws; the usual hand wheel and slide raises or
lowers the whole tool box when required.
The tool box is provided with a slot by which it swivels upon a stud, when
required to be placed at an angle.
Dated this 27th day of June 1892
JOHN E. WALSH,
Royal Exchange Chambers, Leeds, Patent Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and connected with Tool Holders for Planing
Machines and the like.
I, BENJAMIN HESELTON MALLINSON, of Micklefield, Rawdon, near Leeds, in
the County of York, Engineer, 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 object of this invention is to regulate and adjust the tools in the tool box
independently, and for the non-cutting tool to be clear of the work on the return
stroke; also to so arrange the tool box that it may be tilted for planing at an
angle and an oscillating motion of the tool box block retained, and for connecting
the tool box block to the tappet gear in such a manner that, one of the connecting
rods is automatically lengthened or shortened as required in accordance with the
vertical position of the tool box in relation to the horizontal cross slide of the
planing machine.
In describing my invention in detail, reference is made to the accompanying
drawings, in which
Fig. 1 represents a front elevation of a portion of a cross slide of a planing
machine fitted with a tool box arranged according to my invention.
Fig. 2 is a side elevation of same.
Fig. 3 a plan thereof having a portion cut away, and
Fig. 4
diagrammatic side elevation of a planing machine fitted with my
improved tool box.
The cross slide A may be of the usual description and is provided with a saddle B,
adjustable slide C, screw D fitted with hand wheel E for operating same in the
manner as hitherto.
To the adjustable slide C is secured the plate or bracket F, supporting my
Price 87

page_text: improved tool holder block which is mounted on pin G and held in position by the
cover plate H secured to the plate or bracket F by the nut N on said pin and
bolts .J.
The tool holder block K is arranged for receiving two cutting tools T and T¹,
the tool T being for the forward cut and T¹ for the backward cut, both secured to
the said block by ordinary means.
The regulation of the plate or bracket F and tool holder block K, along with
tool T is accomplished by the screw D only, but the tool T is capable of
independent adjustment; this is accomplished by forming a slide K¹ in the tool
holder block K which is regulated by the operation of the screw L.
In suitable journals fixed to the saddle B, is mounted a shaft M connected by a
link and lever to the upright rod N₁ of the ordinary feed motion of the machine.
The shaft M has a keyway cut in the greater portion of its length, in which slides
a feather key secured to the lever O. This lever is coupled by rod P to one arm
of bell crank lever Q, the other arm of which is connected by an adjustable rod R
to the lever S mounted on fulcrum U, the opposite end of said lever at S¹ embracing
a spindle secured between the jaws K2 of tool holder block K, a spiral spring S
washer being placed on each side between said lever and the respective jaws K³.
The connecting rod R is formed in two parts, each having a slot hole cut therein
for the reception of a pin V and a bolt V', the latter being tightened by nut V' to
such an extent that, the rods are rigid enough to change the position of the tool
holder block K on the reversal of the motion of the machine and movement of the
upright rod N¹ of the feed motion, the tool holder block K oscillating on the pin G
and changing the position of the cutting tools at the end of each stroke of the
machine; the spring washers S acting as cushions to the tool box on the oscillation
of the same.
The coupling of the rod R to the lever S is effected by what is known as an
universal joint, by which the tool box may be set for planing at an angle other
than at ninety degrees with the horizontal and the box oscillated at the end of each
stroke.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same may be performed, I declare that what I
claim is :-
1. The slide C in combination with a plate or bracket F, tool holder block K,
lever S and spring washers S₁ arranged substantially in the manner as herein before
described and shown by the drawings.
2. The combination of the upright rod N₁ with the shaft M and intermediate
connections with the tool holder block K arranged substantially in the manner as
herein before described and for the purpose set forth.
3. A tool holder block K with independent slide K' and jaws K' provided with
a spindle between same for the reception of spring washers S and supported by the
pin G arranged substantially in the manner and for the purpose as hereinbefore set
forth.
Dated this 28th day of March 1002
JOHN WAUGH,
Agent.