Improvements in One-way Revolving Clutches and their Application to Starting-gear for Tram-cars and other Vehicles.
Year: 1889

page_text: Date of Application, 21st Nov., 1889
Complete Specification Left, 14th Aug., 1890-Accepted, 25th Oct.,
1890
LUCIDIONAL DI PR
Improvements in One-way Revolving Clutches and their Application
to Starting-gear for Tram-cars and other Vehicles.
AMOS MORONY VEREKER Wellington Place, Dublin Gentleman STEPHEN MITCHELL
YEATES 2 Grafton Street, Dublin Optician, do hereby declare the nature of this 'inven
tion to be as follows:-
1
Our invention consists in improvements in clutch mechanism, & its application
shafting of machinery or other purposes & is specially designed for the break &
starting gear of tram cars & other running vehicles having either fixed or revolving
axles.
The first part of this invention consists in attaching the clutch levers & the cross
heads which actuate same, to a light metal frame or girder carried by the car
axles instead of fixing them to the car floor or frame as in our Specification
No. 14412, 1888.
The second part of our invention relates to the clutch proper by which the starter
is actuated, for this we use preferably the ratchet clutches fully described in Specifi-
cation before referred to, but to prevent the noise caused by the slipping of the
ratchet teeth, we cast upon or firmly attach to one face of the clutch three or more
rider blocks, & to the other face fit a friction ring or collar preferably inside the
ratchet teeth, in this ring we cut three or more openings in a radial direction to
correspond with the rider blocks, & in which the said blocks remain while the clutch,
is in gear or locked, but when the motion is reversed & the ratchet teeth slip out of
gear, the rider blocks mount on the friction ring & riding there, carry it round & thus.
prevent the ratchet teeth striking, but slip off their seats & allow the ratchet teeth
to gear in each other the moment the inotion is again reversed.
Dated 1:
OL AT
11000
COMPLETE
SPECIFICATION.
Improvements in One-way Revolving Clutches and their Application
to Starting-gear for Tram-cars and other Vehicles.
AMOS MORONY VEREKER Wellington Place, Clyde Road Dublin Gentleman
STEPHEN MITCHELL YEATES 2 Grafton Street, Dublin Optician 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:-
Our invention consists in improvements in clutch mechanism & its application to
shafting or other purposes & is specially designed for the break & starting gear of
tram cars & other running vehicles, having either fixed or revolving axles.
The first part of this invention consists in attaching the clutch levers, & the
crossheads which actuate same to a light metal frame or girder carried by the car
axles, instead of fixing them to the car floor or frame, as in our Specification
No. 14412, 1888.
The second part of our invention relates to the clutch proper by which the starter
is actuated, for this we use preferably the ratchet clutches fully described in Specifi-
cation before referred to, but to prevent the noise caused by the slipping of the
ratchet teeth, we cast upon or firmly attach to one face of the clutch three or more
rider blocks, & to the other face fit a friction ring or collar, preferably inside the
ratchet teeth, in this ring are cut three or more openings in a radial direction, to
correspond with the rider blocks, & in which the said blocks remain while the clutch is
D

page_text: in gear or locked, but when the motion is reversed, & the ratchet teeth slip out of gear,
the rider blocks mount on the friction ring, & riding there carry it round, & thus
prevent the ratchet teeth striking, but slip off their seats & allow the ratchet teeth to
gear in each other the moment the motion is again reversed.
In order the more fully to explain the nature of our invention & the manner in which
same is to be performed we subjoin a plate in which
Fig. 1 represents the girder bar, showing at each end the mode of attachment to
the car axles, the vertical fork F. at one end & horizon fork F¹ at the other end,
allows the bar to take its proper position, & prevents any strain of either the axle
or bar.
Fig. 2 shows same bar with crosshead clutch levers attached.
Fig. 3 shows (in plan) one face of ratchet clutch with rider blocks A, A' & A³,
& a, a, a show same block in elevation.
Fig. 4 shows the other face of ratchet clutch with friction ring B. & the radial
openings 0, 01, 02 into which the rider blocks drop when the clutch is in gear.
These blocks are formed like a step & riser as shown in elevation a, a', a², the steps
being level with the top of the ratchet teeth, the friction ring fitted to the other face
of the clutch is also level with the ratchet teeth of that face, so tha: the friction
ring is resting or riding on the blocks the ratchet teeth cannot come to contact with
each other, so long as the motion of the two parts of the clutch is in opposite directions,
but the moment the motion is reversed the friction ring slipping off the steps or blocks
allows the ratchet teeth to engage in each other.
Having now fully described the nature of our invention & the mode in which
samo is to be performed we declare that what we claim is :-
-
First. The girder bar for carrying the clutch levers & attachment of same to the
car axles, substantially as described.
Secondly. The rider blocks & friction ring for rendering ratchet clutches noiseless
as substantially described.
Dated this 12th dane of Aumu 1000
A. M. VEREKER.
S. M. YEATES.