Improvements in or Pertaining to Horizontal Drums of Windlasses and like Apparatus.
Year: 1887

page_text: Date of Application, 18th Nov., 1887
Complete Specification Left, 15th Aug., 1888
Complete Specification Accepted, 21st Sept., 1888
PROVISIONAL SPECIFICATION.
Improvements in or Pertaining to Horizontal Drums of Windlasses
and like Apparatus.
I, HORATIO FLETCHER, of 5 Sydenham Terrace, Newcastle-upon-Tyne, in the
County of Northumberland, Engineer, do hereby declare the nature of this invention
to be as follows :-
In the provisional specification of a former application for Letters Patent dated the
23rd day of June 1887 No. 8946, 1 described the application to a capstan of a gripping
device comprising jaws and means such as a screw for causing such jaws to grip and
release (as required) a rope or cable; and my present invention has reference to the
combination of such or similar gripping apparatus with the horizontal drums of
windlasses, winches, cranes, and hoists.
By my present invention I am able to hold ropes or cables for warping or riding
where it is thought preferable to do so without using a capstan (as in many cases
capstans are dispensed with altogether), or in conjunction with one; and I can
dispense with the ordinary bollards and rope compressors at present in use.
101 1
T
1007
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C.,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in or Pertaining to Horizontal Drums of Windlasses
and like Apparatus.
I HORATIO FLETCHER, of 5 Sydenham Terrace, Newcastle upon Tyne, in the
County of Northumberland, Engineer, 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 the specification of a former application for Letters Patent dated the 23rd day
of June 1887 No. 8946 I have described and claimed the application to a capstan of a
gripping device comprising jaws and means such as a screw for causing such jaws to
grip and release (as required) a rope or cable; and my present invention has reference
to the combination of such or similar gripping apparatus with the horizontal drums
of windlasses, winches, cranes and hoists.
By my present invention I am able to hold ropes or cables for warping or riding
where it is thought preferable to do so without using a capstan (as in many cases
capstans are dispensed with altogether) or in conjunction with one; and I can
dispense with the ordinary bollards and rope compressors at present in use.
The accompanying two sheets of drawings illustrate horizontal drums of winding or
hauling machinery with gripping devices according to the present invention,
1 and 2
Figure 1 being a side elevation and Figure 2 a horizontal section on the line A-B
Fig. 1. Figures 3. 4 and 5 illustrate a modification hereinafter described.
are the two jaws of a gripping device carried by the horizontal drum 3. The jaw 1 is
fixed to or formed with the drum whilst the jaw 2 is formed with a screw threaded
hole and is mounted upon a correspondingly screw threaded rod 4 by means of which it
may be moved nearer to or further away from the jaw 1 for the purpose of holding or
releasing as the case may be a rope or cable 5. The rod 4 is mounted to revolve in
bearings in the drum and is provided at one end with a milled head 6 or it may be
with a hand lever or wheel by means of which it may be turned in either direction.
In the example shewn a tube or sleeve 7 is mounted upon one end of the screw
threaded rod 4 in such a manner as to be capable of rotary movement relating thereto
but not of independent endwise movement thereon. It is provided with a pin or
projection 8 arranged to slide in an inclined slot or cam groove 9 formed in a part 10
at one end of the horizontal drum.
By pulling or pushing the pin or projection 8 when it is in its inner or outer portion
respectively, relatively to the end of the drum the tube or sleeve will be caused to
move outward or inward relatively to the end of the barrel and the jaw 2 may
consequently be rapidly moved toward or from the fixed jaw 1, the final closing
movement to grip the rope or cable being effected by turning the screw threaded rod 4
by means of its milled end or handle.
The gripping device may be placed at either end of the drum according to
convenience.

page_text: In figures 3, 4 and 5 which are respectively an end view, a longitudinal section
and a plan or top view, the movable jaw 2 which works in the slot 3* is loosely
mounted on a rod or spindle 4 arranged to move endwise within suitable tubular
guides 11 formed in the warping drum 3 which is arranged to overhang its driving
shaft 12. 6 is a hand lever fixed to the rod 4 and formed with a projecting part 6*
that takes into a cam groove 13 formed within the drum.
The movable jaw 2 is held endwise between a shoulder formed in the rod 4 and a
washer or distance piece 14 interposed between the said jaw and the hand lever 6.
With this arrangement it will be seen that the movable jaw may be caused to grip or
to release a rope or cable in a rapid manner and that the hand lever for operating.the
jaw is not liable to foul the rope or cable and is convenient of access.
Having now particularly described and ascertained the nature of my said
invention and the manner of carrying the same into practical effect I declare that
what I claim is :-
A combined horizontal drum and gripping device as shewn in and described with
reference to Figs. 1 and 2 or Figs. 3, 4 and 5 of the drawings annexed.
Dated this way of August 1000.
HORATIO FLETCHER.
W. Lloyd Wise,
46, Lincoln's Inn Fields, London, W.C.
Agent for the Applicant.