Improvements in Invalid Bedsteads, Ambulances, and the like.
Year: 1890

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COMPLETE SPECIFICATION.
Improvements in Invalid Bedsteads, Ambulances, and the like.
I, GEORGE PARROTT, of Bicester in the County of Oxfordshire, Carriage Builder
lo 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 :-
My invention relates to improvements in invalid bedsteads, ambulances and the
like and has for its object to further perfect the invalid bedstead described in the
Specification of my former Letters Patent No. 12,119 dated the 30th of July 1889.
My invention consists in providing means whereby a patient may he raised from
his bed for the purpose of changing the bed clothes without having to handle him or
otherwise interfering with his posture or rest.
In carrying my invention into practice I provide two iron bars or tubes one on each
side of the bedstead formed of two jointed parts and supporting the sheet or blanket
upon which the invalid rests. For this purpose the two longitudinal and the upper
edges of the said sheet or blanket are covered over so as to form cylindrical tubular
sheaths through which are passed suitable rods which can be easily withdrawn therefrom
whenever required. Suitable eyelets are formed at regular intervals in the sheet or
blankets close to the inner edge of the rods and through them is passed one end of a
strap wound around the jointed bars or tubes aforesaid and serving to attach the rods
thereto the said straps being furnished with buckles and perforated ends to fasten
them in position that is to say allowing of the sheet or blanket being more or less
tightened or slackened. These jointed bars or tubes are guided and supported at their
free ends by roller bearings forming an integral part of a lifting bar so that the said
jointed bars may be raised or lowered at their other ends i.e. the ends nearest to the
head of the bedstead. The above mentioned jointed bars or tubes are connected by
means of slotted plates and T headed bolts to a frame likewise jointed in the centre
and the lower end of which is capable of sliding to and fro upon suitable rollers fixed
my former
to the longitudinal bars of the bedstead as described in the Specification of
Letters Patent, while the same frame is connected to a swivel operated by a vertical
screw placed at the head of the bedstead and described in the Specification above
described. The said frame is further supported by a rod pivotted to a post fixed to
the bedstead. The jointed bars or tubes are further provided with a movable sleeve
which when pushed over the joint renders the bars rigid such bars being moved with
the blanket carrying the invalid in their raised position. The sliding frame is con-
nected to the jointed bars or tubes aforesaid by means of props the lower ends of
which are pivoted to the said frame while their upper ends are enlarged and slotted
and engage with a pin fixed to the jointed bars.
And in order that my invention may be more fully understood I have shown the
same in the accompanying drawings in which
Figs. 1, 2, 4 & 5 are side views of my improved invalid bedstead showing respectively
the bed in a collapsed or level position the same with the head only raised, the entire
bed in a raised position lastly the same with the foot and head raised but bent in the
centre.
Fig. 3. is an end view of Fig. 1.
Fig. 6 is a plan of the sheet or blanket showing its mode of attachment to the
jointed bars or tubes.
Bis my improved bedstead carried on wheels as shown, and the front legs of
which can be folded under when the former has to be wheeled along. P is the rear
bed part carrying a collar c at the top which holds the upper part of the screw S
furnished with a handle at the top and the bottom end of which rests centrally
upon the transverse rail of the head of the bedstead. Upon this screw can move a
swivel nut n connected to the upper end of the sliding frame F jointed at a and the

page_text: &c. To the
P the upper
Tower and e' of which can move to and fro upon the roller ↑↑ . . .
outer end of this frame is pivoted to the lower extremity of a prop or link
end of which is enlarged and slotted as shown and engages with a pin d fixed to the
jointed bars 6. At a are likewise jointed the lifting bars L with bent ends or bars g
carrying a slotted head ƒ in which is fixed a pivoted roller upon which and through
the said slot passes the free ends of the bars this bar g acting as a guide end a
support for the bars. The sliding frame F is further supported by a link i
jointed thereto at one end while its other end is similarly jointed to a short upright
bar fixed to the bedstead. The bars b bare jointed at upper ends being connected
by means of a T headed bolt m to a slotted plate o fixed to the frame F.
A sleeve g
is provided to slide over and away from the joint and serves either to render the two
jointed parts rigid or to loosen them. This sleeve is used when it is required to
raise the patient in the position shown in Fig. 4 the swivel nut having been first
screwed up to its highest position on the screw S. The sheet or blanket / has its
longitudinal stop edges curved and sewn to form sheaths through which the jointed
rods and the rod shown in dotted lines in Fig. 6 are passed. Slots ' &c.
are formed at intervals in the sheet or blanket along the inner edge through
which straps are inserted and buckled to the jointed bars as clearly shown in Fig. 6.
The component parts of the bedstead are moved by the screw S in order to obtain the
various positions shown in the drawings, with the exception of the raising of the foot
of the bed which is effected independantly of the said screw by the bars g and the
lifting bars L. As a particular application of my invention may use it as an
ambulance.
Having thus particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is.
1. In an invalid bedstead ambulance and the like the combination of the bedstead
carried on wheels B sliding frame F swivel nut a link i bar slotted plate o T headed
bolt m jointed bars band and sleeve q with an upright screw S furnished with a
handle h. for the purpose of raising the patient bodily without interfering with his
posture and rest substantially as and for the purpose described.
2. In an invalid bedstead ambulance or the like the combination of the bedstead B,
sliding frame F slotted propp lifting bar L with bent support g and tubular bars b
for the purpose of raising the feet of the patient without disturbing his body
substantially as and for the purpose described.
3. The improved invalid bedstead or ambulance arranged constructed and operating
substantially as and for the purpose described and shown in the drawings.
Dated this 16th day of October 1890.
HUGHES, ELI & HUGHES,
76, Chancery Lane, London, W.C., Agents for Applicant.