Improvements in Rolls for Rolling Hay- and other Forks.
Year: 1890

page_text: Date of Application, 12th May, 1890
Complete Specification Left, 5th Feb., 1891-Accepted, 7th Mar., 1891
PROVISIONAL SPECIFICATION.
[Communicated from abroad by The Commercial Firm of CARL SPIEGEL, of
St. Petersburg, in the Russian Empire.]
Improvements in Rolls for Rolling Hay- and other Forks.
I, OLIVER IMRAY, of. No. 28, Southampton Buildings, Chancery Lane, in the
County of Middlesex, Fellow of the Institute of Patent Agents, do hereby declare
the nature of this invention to be as follows:-
This invention relates to an improved construction of rolls for rolling hay- and
other forks with two, three or more tines, wherein such forks are rolled with their
tines simultaneously separated from each other, and without fins, by means of
stepped steel grooves. The points of the tines are also formed in grooves lapping
one over the other.
On the accompanying drawings
Fig. 1 shews a front view of a pair of rolls for rolling forks according to this
invention;
Fig. 2 shews a cross section of the two rolls with the steel grooves attached
thereto;
Fig. 3 a vertical section of the rolls with overlapping steel grooves for forming
the points of the tines;
Fig. 4 shews a side and an end view of a steel groove with guide plate ;
Figs. 5 and 6 a front view and section of guide rollers;
Fig. 7 a front view of part of the rolls drawn away from each other, and a
section of the steel grooves with guide plates;
Figs. 8 and 9 shew the steel blank after passing through the first groove;
Fig. 10 the same after passing through the second and third grooves;
Figs. 11 and 12 a fork with four pointed tines after passing through the fourth
groove;
.
Figs. 13 and 14 a fork with eight tines after passing through the first groove.
In the drawings the rolls are shewn, by way of example, as adapted to roll forks
with four tines. The steel grooves are formed as separate semi-discs of steel a
Fig. 4, which are put together in a stepped manner according to the number of
tines and fixed on the rolls A A¹ at the requisite distances apart, Figs. 2 and 3.
On the rolls are fitted iron rings b at distances apart to suit the grooves, which
rings are provided with screws for securing the grooves together; the grooves a
are secured at their ends by means of claw pieces d fixed to the rolls A A¹ by
means of screws e.
In the caliber 1, Fig. 1, the metal for the forks is directly rolled into blanks
The
with neck, head, and tines separated from each other, as at Figs. 8 and 9.
rolls turn in the direction towards the operator, and guide plates with rollers f
Figs. 5 and 6 are provided directly behind the grooves, to insure that the blanks
shall run perfectly straight into the rolls.
In the calibers 2 and 3 the tines are rolled tapering towards the points and the
calibers are provided with guide plates g Figs. 4 and 7 in order to insure that the
tines shall run straight, the grooves being so arranged that at 2 the tines are
rolled edgewise and at 3 flatwise, so that the fins formed in the second caliber are
rolled out again in the third caliber; they are then again rolled in the second
caliber and then again in the third and so on, until the tines exactly fill the grooves,
without leaving any fins, as at Fig. 10.
In the caliber 4 which acts as a cutter, the points are rolled on the tines, Figs. 11
and 19 the unner grooves being made to lap over the lower grooves as at Fig. 3,

page_text: whereby all the superfluous metal is removed, and the points are directly cut to
shape
The essential differences and advantages of the above described improved
construction of rolls are as follows:-
1. The fork blanks are not stamped in dies preparatory to rolling, but are
directly rolled from the bar into blanks with separated tines.
2. The forks are also not rolled in case-hardened cheeks with dies screwed
thereon, whereby the forks are formed from end to end with connecting fins that
are removed with difficulty.
3. The tines are not rolled separately but simultaneously.
4. The points of the tines are not stamped in dies in the first instance, but are
produced without fins in cutter like calibers.
Although it is preferred to make the grooves of each caliber of separate plates
as described, yet the whole of the grooves of one caliber may be turned out of a
single piece.
Dated this 19th day of M
1000
ABEL & IMRAY,
Agents for the Applicant
COMPLETE SPECIFICATION.
Improvements in Rolls for Rolling Hay- and other Forks.
I, OLIVER IMRAY, of No. 28, Southampton Buildings, Chancery Lane, in the
County of Middlesex, Fellow of the Institute of Patent Agents, 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 invention relates to an improved construction of rolls for rolling hay- and
other forks with two, three or more tines, wherein such forks are rolled with their
tines simultaneously separated from each other, and without fins, by means of
stepped steel grooves. The points of the tines are also formed in grooves lapping
one over the other.
On the drawings accompanying my Provisional Specification,
Fig. 1 shews a front view of a pair of rolls for rolling forks according to this
invention.
Fig. 2 shews a cross section of the two rolls with the steel grooves attached
thereto;
Fig. 3 a vertical section of the rolls with overlapping steel grooves for forming
the points of the tines;
Fig. 4 shews a side and an end view of a steel groove with guide plate;
Figs. 5 and 6 a front view and section of guide rollers;
Fig. 7 a front view of part of the rolls drawn away from each other, and a
section of the steel grooves with guide plates;
groove;
Figs. 8 and 9 shew the steel blank after passing through the first
Fig. 10 the same after passing through the second and third grooves;
Figs. 11 and 12 a fork with four pointed tines after passing through the fourth
groove;
Figs. 13 and 14 a fork with eight tines after passing through the first groove.
In the drawings the rolls are shewn, by way of example, as adapted to roll forks
with four tines. The steel grooves are formed as separate semi-discs of steel a
Fig. 4, which are put together in a stepped manner according to the number of
tines and fixed on the rolls A A' at the requisite distances apart, Figs. 2 and 3.
On the rolls are fitted iron rings bat distances apart to suit the grooves, which
rings are provided with screws for securing the grooves together; the grooves a
are secured at their ends by means of claw pieces d fixed to the rolls A A¹ by
means of screws e.
In the caliber 1. Fig. 1, the metal for the forks is directly_rolled into blanks
with neck, head, and tines separated from each other, as at Figs. 8 and 9. The

page_text: rolls turn in the direction towards the operator, and guide plates with rollers f
Figs. 5 and 6 are provided directly behind the grooves, to insure that the blanks
shall run perfectly straight into the rolls.
In the calibers 2 and 3 the tines are rolled tapering towards the points and the
calibers are provided with guide plates g Figs. 4 and 7 in order to insure that the
tines shall run straight, the grooves being so arranged that at 2 the tines are
rolled edgewise and at 3 flatwise, so that the fins formed in the second caliber are
rolled out again in the third caliber; they are then again rolled in the second
caliber and then again in the third and so on, until the tines exactly fill the
grooves, without leaving any fins, as at Fig. 10.
In the caliber 4, which acts as a cutter, the points are rolled on the tines, Figs. 11
and 12, the upper grooves being made to lap over the lower grooves as at Fig. 3,
whereby all the superfluous metal is removed, and the points are directly cut to
shape.
The essential differences and advantages of the above described improved
construction of rolls as compared with those of known construction are as
follows: :-
1. The fork blanks are not stamped in dies preparatory to rolling, but are
directly rolled from the bar into blanks with separated tines.
2. The forks are also not rolled in case-hardened cheeks with dies screwed
thereon, whereby the forks are formed from end to end with connecting fins that
are removed with difficulty.
3. The tines are not rolled separately but simultaneously.
4. The points of the tines are not stamped in dies in the first instance, but are
produced without fins in cutter-like calibers.
Although it is preferred to make the grooves of each caliber of separate plates
as described, yet the whole of the grooves of one caliber may be turned out of a
single piece.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :--
An improved construction of rolls for rolling hay and other forks whereby the
tines of the forks are separated from each other and the fins are removed, such
rolls being constructed with a step-like arrangement of steel calibers the grooves
of which are either each formed of separate discs with or without guide plates, or
are all formed of a single piece of steel, and which are fixed to the body of the
roll by means of claw pieces and screws, substantially as described.
Dated this 5th day of February 1891.
ABEL & IMRAY,
Agents for the Applicant.