Year: 1895

page_text: Date of Application, 6th Feb., 1895-Accepted, 16th Mar., 1895
scale.
The hone B is placed in a metal holder C which rests on 4 springs c adjustable
by screws c. The bone is held in position by two supports badjustable vertically,
in contact with its ends, and to a small extent also with its sides, but they are
placed above the holder C in such manner that this latter is pressed against them
by the springs c¹. The hone is consequently free to yield whenever the pressure is
too great, although its normal position is determined by the metal holder C. The
razor S is held firmly between the arms k of the frame K. by means of one or two
set screws . The frame K rests moveably on the support J which latter slides
on the curved guide plate E. Movement to and fro is imparted to J by a handle G
having a boss y coupled to the ring and pivot i by means of rod F and fork f.
The piece 9 has in front the handle g' for actuating the machine by hand.
For machine driving, the axle h resting in a bearing a fixed on the frame A and
held by means of the ring is prolonged behind and furnished with a pulley for
belt or rope driving.
To prevent the blade of the razor being damaged at each turn of the same in
changing the stroke, the guideplate E is formed with a gradual rise at each end to
a small extent vertically whereby the support is correspondingly raised in front
together with the blade and so the blade is lifted from the hone and only touches
the same again after the turn is made and the forward movement commenced. The
bent piece E is held fast by means of screws to 3 projections a¹ of the frame A.
The automatic turning of the frame K which is fixed so as to revolve about the
support J is effected by the toothed segment R connected to J and engaging in a
tooth wheel which last is secured to the axis of K and J. The piece R has on
the opposite side to the teeth an arm a carrying a roller n' which in order to effect
[Pies 1

page_text: the change of direction strikes the arm o of the projection O and thus causes the
turning of the segment R with tooth wheel and frame K. In order that at each
turn of the frame, the blade S always receives the right position the frame is
firmly held on the flattened portion of its prolongation by a spring fastened to
the projection J' of the support J.
Moreover the frame K has two adjustable screws m in the projection J' on which
it rests alternately. The blade can be so accurately adjusted hereby that the
pressure can be arranged over the whole surface or only on the edge of the same.
The machine acts as well as sharpening in the ordinary way by a firm practised
hand. The adjustment of the razor is very quick. The machine itself is easily
applied to any table T by means of two screws d in the jaws A¹ of the frame A.
The usefulness of the machine extends to other kinds of blades than razors.
Knives should be sharpened with the edge behind.
Two or more blades can be sharpened simultaneously on the same machine,
having a longer hone. One blade is secured by the rod F to the handle g whilst
the other blades are connected with the leading blade by a frame and corresponding
toothed gearing or a pulley band so as to turn together.
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. The apparatus for sharpening razors and the like consisting essentially of a
frame for holding the blade, attached so as to revolve on a guide support which is
arranged to travel backwards and forwards (by hand or machine power) upon a
curved rail in such a manner that at each stroke. the turning of the frame for the
blade 180° is effected by means of the above described tooth wheel and segment or
in other suitable manner, the blade being held firmly but elastically in place in both
its positions by means of a spring pressing on the flat portion of the frame,
together with the above described set-screws for regulating the pressure, on which
the frame rests.
2. The combination of parts forming the spring adjustment of the vertically
adjustable hone consisting essentially of a number of springs adjustable by
means of a screw whereby the hone is pressed more or less strongly against an
adjustable support and its pressure against the blade of the razor thereby
regulated.
Dated this 6th day of February 1895.
W. P. THOMPSON & Co.,
31, High Holborn, London, W.C., Agents for the Applicant.