Improvements in Timber Wagons.
Year: 1898

page_text: Improvements in Timber Wagons.
We, JOSEPH ANDRSON SNODGRASS and JAMES WILLIAM WHITFIELD, both of
Saginaw, Ark., U.S.A., Inventors do hereby declare the nature of this invention
to be as follows;
The object of this invention is to make those parts of timber or logging-wagons,
known as the "bump blocks," more conveniently adjustable than heretofore.
wagon. bolster
By this invention, a metal plate is secured to the top surface of the
and is provided with a preferably dove-tail longitudinal guide which is engaged
by a dove-tail projection on a metal plate secured to the under side of the block,
which is thereby made slidable on the bolster. The lower plate is provided with
a longitudinal series of apertures, and the upper plate is fitted with a spring-
depressed catch which engages the apertures and retains the block in any desired
position on the bolster.
In an alternative form, the plate on the bolster has its longitudinal edges bent
upwards and then inwards to engage a longitudinal slot on each side of the block;
the slots being lined with channel-iron if desired. Perforations may be made in
the guide ways and turned-in portion of the plate on the bolster, to be engaged
by a pin or pins to adjust the block in the desired position.
R. RAINSFORD,
Agent for Applicants.
We, JOSEPH ANDRSON SNODGRASS and JAMES WILLIAM WHITFIELD, both of
Saginaw, Ark., U.S.A., Inventors, 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 a "bump block" such as is used upon timber wagons
or cars for receiving the blow or thrust of the logs in being loaded thereon, and
more particularly to the means for effecting the adjustment of the block to and
holding it at the desired adjustment on and removing it from the wagon or car.
It will be understood from the following description and claims, reference being
had to the accompanying drawings in which:-
Figure 1 is an elevation shewing the end of the bolster of a timber wagon with
a bump-block constructed in accordance with our invention applied thereto. Fig. 2

page_text: is a section taken on the line a― of Fig. 1; Fig. 3 is an end elevation shewing
an alternative form of our invention; Fig. 4 is a perspective view of a modification
of the invention; Fig. 5 is a longitudinal section through Fig. 4 shewing a slight
variation of construction; and Fig. 6 is a detail view.
The bolster 1 is fitted on its upper surface with a metal plate 2 having a dove-
tailed ridge 3, the plate being secured by screws 4. The underside of the bump-
block 5 has a plate 6 secured to it by screws 7; said plate having a longitudinal
groove 8 to conform to the dovetailed ridge 3. It will be understood that the
ridge may be made on plate 6 and the groove 8 be made in the plate 2 if such
construction be preferred.
A bracket 9 is secured to the back of the bump-block and has a bolt 10 passed
through its cars 11. The bolt carries-the-right-angléd lever 12, one arm 13 of which
forms a handle, and its other arm is formed with an eye 14 which is engaged by the
bifurcated upper end of a link 15. The lower end of the link is formed with an
eye 16 which is pivotally secured by a pin or bolt 17 in the bifurcated upper end of
a bolt 18 capable of vertical reciprocation in brackets 19, 20 secured to the back of
the bump-block. A spiral spring 21 having its upper end in contact with the
upper bracket 19 and its lower end secured in the aperture 22 in the bolt 18 tends
to keep the bolt in its lowest position. The lower end of the bolt may be bevelled,
as shewn clearly in Fig. 6, to engage a series of apertures 23 arranged as shewn in
Fig. 4 and which may be of the shape shewn in Fig. 6. In this construction it
will be understood that when the bump-block is pushed forward the bolt will ride
out of the apertures (except as shewn in Fig. 2) but will be retained therein and
resist movement of the block in the reverse direction until the bolt is raised by
pulling the arms 13 of the lever 12 forward. When the apertures 23 are of the
shape shewn in Fig. 2 it will be found necessary to operate the lever when desiring
to move the bump-block in either direction.
In Fig. 3 the bump-block is shewn as having a sheet of metal 24 secured to its
underside, by screws or the like, and having its edges bent over to engage longi-
tudinal grooves 25 in the bolster 1; the upper surface of the bolster being prefer-
ably covered by a piece of sheet metal 26. If preferred the metal plate 24 may be
dispensed with and the edges of the plate 26 be bent upwardly to engage longitu-
dinal grooves in the sides of the bump-block. In this form of the invention either
the bolt 18 and its appurtenances may be employed, or the form of bolt shewn and
hereinafter described with reference to Figs. 4 and 5.
In Figs. 4 and 5 the bolster is shewn as having a metal plate 27 secured to
its upper surface and projecting over its sides. A metal plate 28 is secured to
each side of the bump-block by bolts 29. Lugs 30 on the inner sides of the plate engage
the upper surface of the projecting edge of the plate 27, the under surface being
engaged by the inturned lower edges of the plates 28. The lugs 30 and lugs 31 may be
conveniently formed by cutting out the metal as shewn at 32 (Fig. 5) and bending
out the lugs at right angles to the plane of the metal plates. The lugs 31 on
the inner sides of the metal plates 28 form guides for bolts 33 formed by a single
length of rod bent at right-angles as shewn at 34. These bolts are normally
depressed by springs 35 in the manner described with reference to Figs. 1 and 2.
A lever 36, formed by a single piece of metal bent as shewn is pivoted on the bolt 37
and has its arms 38 resting beneath the upper cross-bar 39 of the bolts 33. A
chain 40 may be secured to the arm 41 of the lever to enable it to be operated from
any convenient distance. By depressing the arm 41 the arms 38 will raise the
bolts clear of the apertures 23 which are preferably of the form shewn in Fig. 6.
It will be understood that in this form of the invention the bolt shewn in Figs. 1
and 2 can be used; the lever 12 being conveniently supported upon the bolt 37.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:
(1) The hereindescribed improvements in timber wagons said improvements.
300

page_text: sisting in providing the upper surface of the bolsters of said wagons with a longi-
tudinal guide, the bump-block formed with ways engaging the guides aforesaid,
and means such as a bolt for securing said bump-block in any required position
longitudinally, substantially as herembefore described and illustrated in the
drawings hereunto annexed.
(2) In a timber wagon, the bolsters thereof having a metal plate secured to
their upper surfaces and a dovetailed ridge on said plate, a metal plate secured to
the underside of the bump-block and ways in said plate adapted to engage the
aforesaid dovetailed ridges, and means for locking the bump-block in any required
position on said bolsters, substantially as and for the purposes hereinbefore set
forth and illustrated in the drawings hereunto annexed.
(3) In a timber wagon the bolsters thereof having a metal plate secured to their
upper surfaces and a dovetailed ridge on said plate, a metal plate secured to the
underside of the bump-block and ways in said plate adapted to engage the afore-
said dove-tailed ridges, a series of apertures in the metal plate on the upper surface
of the bolsters, a spring-pressed bolt engaging said apertures and a lever mounted
in brackets on the bump-block and connected to said bolt to raise it when required,
substantially as and for the purposes hereinbefore set forth and illustrated in the
drawings hereunto annexed.
(4) In a timber wagon, the bolsters formed with the longitudinal grooves in their
sides, a metal plate secured to the underside of the bump-blocks and having pro-
jecting side edges which are bent over into the longitudinal grooves aforesaid, and
the means herein before described for locking the bump-block in any desired
position on the bolsters, substantially as and for the purposes hereinbefore set forth
and illustrated in the drawings hereunto annexed.
(5) In a timber wagon, the bolsters thereof having a metal plate secured to
their upper surfaces, a series of bevelled apertures in said plate, the bump-blocks
having metal plates secured to their sides and having their lower edges turned in-
wards to form ways in conjunction with inwardly projecting lugs formed as
described on the side-plates of the bump-blocks, said ways being slidable on the
projecting edges of the metal plates on the bolsters, spring-pressed bolts formed
of a single length of metal rod and slidable vertically in inwardly projecting lugs
formed as described on the side plates of the bump-block, a right-angled lever
pivoted adjacent to said bolts and adapted to raise the same when it is desired to
slide the bump-blocks rearwardly, all substantially as and for the purposes herein-
before set forth and illustrated in the drawings hereunto annexed.
1000
R. RAINSFORD,
Agent for Applicants.