Improvements in Morticing Machines.
Year: 1890

page_text: Date of Application, 14th Mar.. 1890
Complete Specification Left, 13th Dec., 1890-Accepted, 7th Mar., 1891
PROVISIONAL SPECIFICATION.
Improvements in Morticing Machines.
JOHN ANDERSON, 38, Elswick Row, Newcastle-on-Tyne, Engineer, do hereby
declare the nature of this invention to be as follows:-
This invention relates to power morticing machines with reciprocating chissels,
being a selfacting arrangement for reversing the chissel while in motion, and consists
of a toothed cam or pinion fixed on the chissel spindle into which is geared a second
segment of larger radius with a lever attached and pivoted on the spindle carriage,
and operated off an eccentric on the driving shaft, the movements being controlled
by a rod connected to the foot lever.
Dated this 12th day of Maush 1200
COMPLETE SPECIFICATION.
Improvements in Morticing Machines.
JOHN ANDERSON, 38, Elswick Row, Newcastle-on-Tyne, 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 :-
This improvement relates to power morticing machines with reciprocating chissel
and graduating stroke increasing by selfacting arrangement and selfreversing
chissel actuated by the main crankshaft.
I will now proceed to explain my said invention more in detail by the aid of the
accompanying drawings, reference being had to letters and figures marked thereon.
Fig. I is a front, Fig. II a side and Fig. III back clevation and Fig. IV a plan of
chissel carriage with reversing arrangement. The invention consists of a main
frame carrying shaft on line A with crank disc A keyed on and graduating lever B
pivoted on shaft B¹ and links C connecting crank disc A with chissel carriage D by
rod and crank pin D and being graduated by worm E operating wheel and pinion F,
and rack G connected by link H to the graduating lever B and controlled by the
handle and lever J, with roller K pressing the rack G into gear with pinion F,
so moving the lower end of lever B to the right thus giving longer stroke to the
chissel, and when at its extreme depth projection K' on the rack, striking lever J
Fig. II so releasing the rack from pinion F and allowing it to rise again by means of
the balance weight A' on shaft B'. The excentric M on driving shaft A' operating
the rod N, and with it the tappets O moving on the face of cross lever P, which is
pivoted on stud P' fixed to the frame and having sliding bolts Q, on opposite sides
of the fulcrum P¹ Fig. IV which are controlled by T lever R attached by pivot
sockets S¹ to cross lever P, and the arms to pins on slide bolts Q and tappet S,
attached to rocking shaft T, pressed by rod U₁ connected to and actuated by lever
shaft B, thus projecting the highest bolt Q which at the next stroke is pressed by
one of the tappets O, thus reversing its position and the top of cross lever P being
connected by eyebolt V to crank lever X working through chissel carriage D and
keyed to gear segment Y moving the pinion thus reversing the chissel, the
spring X pressing roller Y' and keeping it in position while working.
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 :-
:-
First. Worm E wheel and pinion F with rack G in combination with graduating.
lever B.

page_text: Second. Cross lever P, with bolts Q and tappets O and S.
Third. Lever X segment Y in combination with pinion Z for morticing machines
substantially as shown and for the purpose set forth.
D
L 1
1000
JOHN ANDERSON.