Year: 1888

page_text: Date of Application, 2nd Feb., 1888
Complete Specification Left, 30th Oct., 1888
Complete Specification Accepted, 2nd Feb., 1889
JOHN THROPP of Livingstone works Holly Street Sheffield Yorkshiro Hardware
Manufacturer do hereby declare the nature of this invention to be as follows:-
This invention has referance to a new or improved knife scraper, when the ordinary
mincing or chopping knife is used for mincing or chopping meat vegetables or the
like, the article or articles that are being minced or chopped usually clog or stick to
the said mincing or chopping knife According to my invention I make or provide a
scraper the said scraper I prefer to make of metal, but can be made of any other
suitable material. In carrying out my invention I proceed as follows, I make or
provide a slot in the upper part of the aforesaid knife the whole or part length of
blade the said scraper is made in two parts each part are coupled together by a screw
or revits through the slot, the scraper to fit each side of the said knife and when slided
backwards and forwards in the slot from end to end it scrapes off the loose pieces
which may stick or clog to the said knife blade.
JOHN THROPP,
Livingstone Works, Holly Street,
Sheffield, Yorkshire.

page_text: COMPLETE SPECIFICATION.
A New or Improved Scraper for Cleaning, Mincing, or Chopping
Knives.
JOHN TAROPP, Manufacturer, Livingstone Works, Holly Street, Sheffield, 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 :-
In mincing or chopping meat fruit vegetables or other similar substances or articles,
with any Knife or Chopper it is frequently necessary to scrape or wipe off the
particles which adhere to the sides of the Blade, usually this is done with a table knife
or with the tips of the fingers, in either case loosing valuable time & in the latter case
endangering the band of the person so acting.
"
This invention provides a meat Scraper or Wiper, which is attached to the Mince
Knife or Chopper, & which will clear both sides of the Blade, at one single move-
ment. It is effected as follows:-
-
1st. Near the back or thick edge & parralel with the cutting-edge of the Square
or Straight Mince Knife or Chopper, is made a long narrow Slot, as shown in Fig. 1.
The Scraper or Wiper Fig. 2 is made in metal or other similar suitable material, it is
provided at the upper end with a small straight bar or lug A, which extends almost
across the broad part in the middle of this lug is a small hole B drilled, through which,
the revit or screw inust pass, to attach it to its fellow, the Bar or Lug A is the 'samo
width as the Slot in Blade, but only half the thickness of the Blade, the Scrapers.
being attached in pairs, one at each side of the blade, through the Slot, the two lugs
meet in the Slot.
Below this lug there is a cell or groove C down the centre of the Scraper, into this
cell is placed a piece of cotton cord or other suitable material which acts as a pad or
cushion & effectually closes any gap or aperture which might otherwise appear,
between the Scraper & the Blade.
When each part is ready for attaching, we proceed as follows
:-
Taking up a Blade (Fig. 1.) we then place a piece of cotton cord or similar material
into the cell of a scraper immediately pressing the Scraper to the side of the Blade,
taking care that the Bar A is inserted into the Slot, we then take up another Scraper
& insert another piece of cotton cord or similar material into the cell & place this
Scraper against the Blade on the opposite side to the first, letting Bar A be also
inserted into the Slot exactly opposite the first; the holes B. are then opposite & we
put a pin through these holes, cut it to the proper length & revit it in, or we may
screw them together, but we prefer the revit.
2nd. In the Half Round or Round Mince Knife or Chopper, we make a hole in such a
position that the Scraper revolving in this hole as a centre will-cover-the whole surface
for the Blade, see Fig. 3. (or we make a curved slot as shown in Fig. 6).
The Scraper to suit this Blade Fig. 3. is shown by Fig. 4. to be in every respect
similar to Fig. 2. excepting in the pattern of its Lug D this is half of a circular
lug or button which corresponds in size to the hole in Blade Fig. 3, but unlike Bar

page_text: or lug A, the depth of Lug D, is the full thickness of the Blade, so that when two of
these Scrapers are placed facing each other in the hole the one locks the other in
such a manner, that, when revited or screwed together, they move simultaneously
see Fig. 5, these Scrapers are attached to the Blade in precisely the same manner as
described above.
The Scraper to suit slot shown by Fig. 6. is shown by Fig. 7. to differ from Fig. 2.
only in the pattern & number of its Lugs E, these are two in number, are round, only
the same thickness as Bar A & are placed at opposite sides of the Scraper, the
lower edge of the hole B being in a line with the lower edges of the lugs E. will
form when attached a correspond curve to the Slot shown in Fig. 6. In other
respects this Scraper is precisely like Fig. 2, in action, attachment & material.
Having now particularly described & ascertained the nature of this said inven-
tion & in what manner the same is to be performed, I declare that what I
claim is,
1st. The invention of a Scraper or Wiper which is to be attached to a Mince or
Chopping Knife of any pattern by means of a slide or revolving centre.
2nd. The Slots & hole in the said Mince or Chopping Knife, by which means & in
which the Scraper or Cleaner or wiper slides or revolves.
1000
For JOHN THROPP,
By Charles Parkin & Son.