Improvements in Locking or Sustaining Devices for use in connection. with Lifting or Winding Machinery.
Year: 1896

page_text: Date of Application, 1st Oct., 1896
Complete Specification Left, 18th June, 1897-Accepted, 7th Aug., 1897
Improvements in Locking or Sustaining Devices for use in connection.
with Lifting or Winding Machinery.
I, ALBERT GOODALL of Avondale Villa, Compton, Newbury in the County of Berks,
Engineer, do hereby declare the nature of this invention to be as follows:-
My invention relates to an improved locking or sustaining device for use in
connection with lifting or hoisting machinery or with winding machinery such as ships'
winches and steering gear.
My improved device comprises a cylindrical box bored out internally and designed
to be fixed or bolted in any convenient position.
Fitting around the inside of the box is a divided ring and within this ring is
mounted a block having a spindle or shaft projecting through and supported in a hole
or bearing at one side of the said box, the projecting portion of the spindle or shaft
being designed for carrying the chain wheel or other device to be locked, for instance
the wheel over which the lifting chain of a hoist passes or the chain drum of a steering.
wheel.
Between the divided ring and the block is or are arranged one or more gripping
pieces which at one end are broad and curved to roll on a surface on the block and
at the other end narrow and designed to press against the divided ring in such a
manner that when the block and divided ring are in a certain position relatively
with each other no gripping action will be exerted but so that when any relative
movement takes place the gripping pieces will force the divided ring into tight contact
with the box.
In connection with the block is what I term a driving plate which advantageously
forms one side of the box, and has fixed to it the wheel through which motion is
to be communicated, for instance the hand chain wheel of a hoist or the steering wheel
of a steering gear.
On the divided ring are lugs or projections and also on the block, and in the driving
plate are slots which receive the said lugs, but permit of their relative movement,
under the strain.
Dated this 1st day of October 1896.
Improvements in Locking or Sustaining Devices for use in connection
with Lifting or Winding Machinery.
ALBERT GOODALL 33 Dudley Road Grantham in the County of Lincoln (late of
Avondale Villa, Compton, Newbury, in the County of Berks) Engineer' do hereby
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page_text: 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:-
My invention relates to an improved locking or sustaining device for use in
connection with lifting or Hoisting machinery, such as Ships winches and Steering
Gear, Hoists and the like.
And I will describe my invention by referance to the accompanying drawings.
Sheet I shows Plans and Section with Drive Plate G. (Fig. 7. Sheet 2) removed and
Sheet 2 the details of the several parts.
Similar letters of referance refer to like parts in all figures.
My improved device comprises a Cylindrical Box A Sheet 1, Bored out internally
and designed to be fixed or bolted in any convenient position by lugs as
shown.
Fitting around the inside of the said box A. is a divided Ring B. B. B. Fig. 4
Sheet 2.
And within this divided Ring B. B. B. is mounted the Crosshead C. Fig. 5. Sheet 2.
So designed and having a spindle or shaft projecting through and supported in a
suitable hole or bearing in the said box A. as shown in section Fig. 1. Sheet 1. the
projecting portion of the Spindle or Shaft being designed for Carrying the chain wheel
or other device to be locked. For instance the wheel over wich the lifting chain of
a hoist passes.
Between the divided Ring B. B. B. and the aforesaid Crosshead C. are arranged one
or more locking Quadrants D. D. D. Fig. 6 Sheet 2.
Fig. 7. Sheet 2. shows what I term the Driving Plate G. wich advantageously
forms one side of the aforesaid Box A. and has fixed to it the wheel through wich
motion is to be communicated for instance the Hand Chain wheel of a hoist..
This Plate G. is designed to engage the lugs or driving pieces E. E. E. on the divided
ring B. B. B. and F. F. F. on the crosshead C.
So that as power or motion is given to the beforementioned Driving Plate G. in
either direction, the Quadrants D. D. D. are in the position as shown in Fig 2 Sheet 1.
and the Divided ring B. B. B. is free to revolve.
But as soon as the motion or power is taken off, the weight or strain on the shaft
that carries the crosshead C. will carry the Quadrants D. D. D. in the direction the
strain lies; and the said Quadrants, D. D. D. will force the divided ring B. B. B. into tight
contact with the box A-as shown in Fig. 3 Sheet 1.
But on motion being given to the aforesaid Plate G. it instantly releases the lock,
and allows the aforesaid rings B. B. B. to work free.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is.
.
1st. The crosshead C. and Quadrants D. D. D. and Divided Ring in combination with
Box and Drive Plate.
2nd. The motion formed by crosshead and Quadrants or Quadrant, by the design
and character of such.
3rd. The whole or part of the combination of the before mentioned Crosshead C.
Quadrants, D. Divided Ring B. Drive Plate G. and Box A. forming locking or Sustaining
mechanism.