IMPROVEMENTS IN APPARATUS FOR SUPPORTING AND DISENGAGING SHIPS BOATS.
Year: 1882

page_text: LETTERS PATENT to Max Emil Theodor Bülow of Hamburg Germany for an
Invention of "IMPROVEMENTS IN APPARATUS FOR SUPPORTING AND
DISENGAGING SHIPS BOATS.'
"
PROVISIONAL SPECIFICATION left by the said Max Emil Theodor Bülow
at the Office of the Commissioners of Patents on the 4th March 1882.
MAX EMIL THEODOR BÜLOW of Hamburg Germany "IMPROVEMENTS IN
APPARATUS FOR SUPPORTING AND DISENGAGING SHIPS BOATS."
The object of my invention is to improve the apparatus for supporting ships'
boats and also to accelerate the disengaging of such boats in case of need.
To support the boat when on board I use stands made of two parallel rails,
which rails are arranged in such a manner as to allow the motion of sliding chocks
between them. The chocks are kept in their proper position by wedges swinging
on shafts and operated by levers which are attached to the swinging shafts. Such
chocks may be made either of one solid piece or of two halves connected by hinges,
but they should be provided with guides, which regulate the length of the sliding
motion. In order to allow a moderate size of such guides they are either slotted
or constructed with an inside sliding bolt, whereon the chock bearings are
fastened.
The lower ends of boat lashings are attached to the above described boat stands
and the upper ends to a bar, both extremities of which are bent in such a manner
as to form hooks for holding the lashing rings. When the bar which rests on the
boat railing transversally to the boat is turned by a lever fastened thereon in such
a way as to allow the lashing rings to slip off, the lashings fall down and leave
the boat free.
The pulley blocks may be provided with a sort of brake, in form of clamping
levers operated by band-screws, which hold the free ends of the tackle ropes, in
order to regulate the lowering of the boat therewith.
'

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed. by
the said Max Emil Theodor Bülow in the Great Seal Patent Office on the
1st September 1882.
MAX EMIL THEODOR BÜLOW of Hamburg Germany "IMPROVEMENTS IN
APPARATUS FOR SUPPORTING AND DISENGAGING SHIPS BOATS.
"
The object of my invention is to improve the apparatus for supporting ships
boats and also to accelerate the disengaging of such boats in case of need.
To support the boat when on board I use stands made of two parallel rails
which rails are arranged in such a manner as to allow the motion of sliding chocks
between thein. The chocks are kept in their proper position by wedges swinging
on shafts and operated by levers which are attached to the swinging shafts. Such
chocks may be made either of one solid piece or of two halves connected by hinges,
but they should be provided with guides, which regulate the length of the sliding
motion. In order to allow a moderate size of such guides they are either slotted
or constructed with an inside sliding bolt whereon the chock bearings are
fastened.
The lower ends of the boat lashings are attached to the above described boat
stands and the upper ends to a bar, both extremities of which are bent in such a
manner as to forin hooks for holding the lashing rings. When the bar, which
rests on the boat railing transversely to the boat is turned by a lever fastened
thereon in such a way as to allow the lashing rings to slip off, the lashings fall
down and leave the boat free to swing out.
The pulley blocks may be provided with a sort of brake, in form of clamping
levers operated by hand screws, which hold the free ends of the tackle ropes, in
order to regulate the lowering of the boat therewith.
In order to make my invention more clearly understood, I have illustrated an
apparatus for supporting and disengaging ships boats constructed according to my
said invention on the accompanying Drawing in which Figure 1 is a cross section
of a boat fastened by hinged chocks. Figure 2 is a side elevation partly in section
of the supporting device by solid chocks. Figure 3 is a side elevation partly in
section of a boat supported at the stern by hinged chocks and at the stern by
solid chocks and Figure 4 is a plan thereof.
Similar letters refer to similar parts throughout the several views :-
A; A. are the stands made of the two parallel rails a. a. B. B are the chocks
either composed of two pieces b. b. which are connected by the hinge c. as shewn
in Figure 1 and in the corresponding halves of Figures 3 and 4 or made of one
solid block as illustrated in Figure 2. The chocks B. are kept in their proper
position for supporting the boat by the wedges d. which catch in convenient
grooves of the chocks. The shaft c. to which an inside corner of the wedges d. is
fastened may be turned in its bearing by means of a leverf thus causing the
wedge d. to go out from the groove in the chock B. When the levers f are
arranged and connected by ropes or chains & in such a manner as shown in Figure 4,
the wedges d. may be drawn out of the grooves of the chocks B simultaneously
by one pull on the rope or chain '. uniting the four ropes or chains h. The
chocks which then are not longer supported, slide downwards in consequence of
their proper weight and would fall out between the rails a. if they were not
hindered by special guides. In the construction Figure 1 at every side of the
chock B, is arranged only one guide k. which supports the fulcrum of the hinge c.
by lowering the chock B the hinge pin slides down at first inside the vertical slit
of the guide k. and then draws the latter between the rollers i downwards until

page_text: the broad head of k. rests on the rollers i. By this motion the two halves b. b¹. of
the chocks are separated :-
In the construction Figure 2 two guides are provided at every side of the
chocks B, they are moveable between the rollers i and guide in their vertical slits
the bolts . provided with arresting projections; these bolts are fastened to the
traverse m of the chock. The guides . are longer than the guides k. of the before
described construction, because the chocks B made of one solid piece are to be
lowered more than the two hinged pieces b. b¹.
The lashings p are arranged in the following manner: below they are fastened
by means of the hooks o. to the rails a the upper lashing rings n are hitched in
the upwardly bent extremities of the rod q which rests athwart on the railings of
the boat. The lever r. serves to turn the rod q.
Having thus fully described my invention what I desire to clain and secure by
Letters Patent is:-
-
1st In apparatus for supporting and detaching ships boats the combination of
the swinging wedges d. with the chocks B substantially as described.
2nd In apparatus for supporting and detaching ships boats the combination of
the chock halves b and 6' with the hinge c. substantially as set forth.
3rd In apparatus for supporting and detaching ships boats the combination of
the slotted guido k. with the bipartite chock B substantially as specified.
4th In apparatus for supporting and detaching ships boats the combination
of the guides k¹ and the bolts l. with the chock B substantially as described.
5th In apparatus for supporting and detaching ships boats the combination of
the rod q and the lever r. with the lashings p and the lashing rings n substantially
as and for the purpose specified.
In witness whereof I the said Max Emil Theodor Bülow have hereunto set
my hand and seal this Twentyeighth day of August in the year of our
Lord One thousand eight hundred and eighty two.
MAX EMIL THEODOK BULOW. (LS)