Improvements in Shackles for the Springs of Carriages or other Road Vehicles.
Year: 1893

page_text: Date of Application, 1st Aug., 1893
Complete Specification Left, 30th Apr., 1894-Accepted, 2nd June, 1894
PROVISIONAL SPECIFICATION.
Improvements in Shackles for the Springs of Carriages or other
Road Vehicles.
I, JOHN HAYDOCK, of White Bull Stables, Blackburn, in the County of
Lancaster, Cab Proprietor, do hereby declare the nature of this invention to be as
follows:-
The
This invention relates to shackles for the springs of carriages or other road
vehicles and consists in imparting elasticity to such shackles in a novel and
improved manner. The body part of my improved shackle consists of a flat metal
box of oval shape that is to say having its ends in the form of a semi-circle.
box encloses two sliding metal blocks in the form of T pieces whose cross bars
reach across the box and meet each other face to face and whose legs point
lengthwise of the box in opposite directions. The outer end of each leg is round or
curved preferably concentrically with a hole through which the usual bolt for
connecting with the spring clips is passed at one end of the shackle and for
connecting with the scroll clips at the other. The spaces between the sides and
ends of the legs and the cross bars of the T pieces and the sides of the box are
filled with packing of india-rubber or other suitable elastic material so that when
the improved shackle is under a load the india-rubber is compressed against the
ends and sides of the box. The sides of the box consist of metal plates having
slotted holes to suit the bolts in the blocks within and which are an easy fit within
the metal band forming the edge of the box. The india-rubber packing projects
somewhat beyond the blocks so that the box sides instead of being rigid may give
somewhat under lateral or side pressure. Thus in my improved shackle above
described elasticity is afforded in two directions namely laterally and longitudinally.
The loosely fitting sides or plates are securely held in place against the projecting
india-rubber by the pressure of the usual spring and scroll clips as will be well.
understood.
Dated this lat An 1000
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Shackles for the Springs of Carriages or other
Road Vehicles.
I, JOHN HAYDOCK, of White Bull Stables, Blackburn, in the County of
Lancaster, Cab Proprietor, 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 shackles for the springs of carriages or other road
vehicles and consists in imparting elasticity to such shackles in a novel and
improved manner. The body part of my improved shackle consists of a flat metal
box of oval shape that is to say having its ends in the form of a semi-circle
The
box encloses two sliding metal blocks in the form of T pieces whose cross bars
PD
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page_text: reach across the box and meet each other face to face and whose legs point
lengthwise of the box in opposite directions. The outer end of each leg is rounded
or curved preferably concentrically-with-a-hole through which the usual bolt for
connecting with the spring clips is passed at one end of the shackle and for
connecting with the scroll clips at 'the other. The spaces between the sides and
ends of the legs and the cross bars of the Tepieces and the sides of the box are
filled with packing of india-rubber or other suitable elastic material so that when
the improved shackle is under a load the india-rubber is compressed against the
ends and sides of the box. The sides of the box consist of metal plates having
slotted holes to suit the bolts in the blocks within and which are an easy fit within
the metal band forming the edge of the box. The india-rubber packing projects
somewhat beyond the blocks so that the box sides instead of being rigid may give
somewhat under lateral or side pressure. Thus in my improved shackle above
described elasticity is afforded in two directions namely laterally and longitudinally.
The loosely fitting sides or plates are securely held in place against the projecting
india-rubber by the pressure of the usual spring and scroll clips .as. will be well
understood.
In the accompanying drawings,
Fig. 1 is a side view and
Figs. 2 and 3 are. sectional views illustrating the nature of my said improvements
as above described.
Fig. 1 is a sectional view of a modification of the same.
In the said figs. a a are the sliding metal blocks having the cross bars or legs b b.
cc are india-rubber or elastic packing pieces or fillings and dis a metal band hoop or
frame within which the said parts are held or contained with the assistance of the
In Fig. 1 the improved
side plates e e fitting easily within the band or hoop d.
shackle is shewn without the side-plate nearest the spectator. fare clips of the
usual kind and g g screw bolts and nuts for connecting the shackle to the scroll
irons and springs. hh are slots in the side plates e e (indicated by broken lines at
Fig. 1). In Figs. 1, 14 and 2 the position of the several parts is that which obtains
when there is no load on the shackle and in Fig. when a load is on. As will be
1seen by reference to Fig. 3 the sliding blocks a a and cross bars 66 are drawn
apart from each other by the weight of the load thereby squeezing or compressing
the elastic packings c c against the ends and sides of the shackle and at the same
.time causing the said packings to be distended or crushed out sidewise against the
side plates ee and thus to take up any slack between the sides of the shackle and the
spring and scroll clips ff.
Fig. 4 is a side view and
°
Fig. 5 a sectional view of an arrangement of my improved shackle in which the
elastic packings cc and sliding blocks a a are held in place by means of a hollow
curve or concavity in the metal band or hoop d.
Fig. 6 is a sectional view shewing one of the sliding blocks or pieces a in working
position within the concave sides of the band or hoop d as just described.
In Figs. 1, 14, 2 and 3 the sliding pieces a a are of cast metal and in the
remaining figs. they are of wrought metal. In the latter case metal ferrules ll
through which the usual screw bolts and nuts are passed-may-be employed as shewn
at Figs. 7 and 8 or they may be dispensed with as shewn at Figs. 4 and 5.
At Fig. 1 is shewn an arrangement of hollow or pneumatic cushion chaving an
air chamber i which may if desired be inflated by means of a pump and valve of
the kind commonly employed for the inflation of pneumatic tyres of velocipedes.
An important feature of the arrangements hereinabove described is the method of
affording elasticity to the improved shackle that is to say by the compression of the
whole body of the india-rubber or other elastic packing against not only the ends
but also the sides of the shackle. In all the arrangements of such apparatus
heretofore known to me only that part of the elastic packing near the ends of the
shackle has been compressed that part of the packing therefore becoming rapidly
worn through.
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page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
1. In a shackle for the springs of carriages or other road vehicles the combination
with elastic packing contained within a band hoop or frame of sliding blocks or
pieces having legs or cross bars such as bb the said parts being constructed
arranged and operating substantially as described and shewn in the drawings.
2. In a shackle for the springs of carriages or other road vehicles the combination
with elastic packing contained within a band hoop or frame and sliding blocks or
pieces having legs or cross bars such as bb of side plates such as e e arranged and
operating substantially as described and shewn at Figs. 2 and 3 of the drawings.
Dated this oven way of April 1894.
For the Applicant,
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.
For the Applicant,
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.