US795524A

US795524A - Invalid elevator and truck.

Info

Publication number: US795524A
Application number: US23236904A
Authority: US
Inventors: Richard Leffmann
Original assignee: Individual
Current assignee: Individual
Priority date: 1904-11-11
Filing date: 1904-11-11
Publication date: 1905-07-25
Anticipated expiration: 1922-07-25

Description

No. 795,524. PATENTED JULY 25, 1905. R. LBPPMANN.

INVALID ELEVATOR AND TRUCK. APPLICATION FILED NOV. 11, 1904.

2 SHEETS-SHEET 1.

PATENTBD JULY'25, 1905.

R. LBFFMANN. INVALID ELEVATOR AND TRUCK.

AYPLICATION FILED NOV.11, 1904.

2 SHEETS-SHEET 2.

III

I72 vexed-07:

ANDREW a mum. m lnnrounmm we mama c UNITED STATES PATENT OFFICE.

INVALID ELEVATOR AND TRUCK.

Specification of Letters Patent.

iratented July 25, 19

Application filed November 11, 1904. Serial No. 232,369.

To ILZZ whmn it may concern.-

Be it known that I, RICHARD LEFFMANN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Invalid Elevators and Trucks, of which the following is a specification.

After a surgical operation has been performed it is desirable to move the patient from the operating-table to a bed with the least possible disturbance of his position; and it is the object of this invention to produce a device for accomplishing this purpose. Such a device is also useful in transferring a patient from one bed to another or in removing him from a bed while the bed is being made.

In the accompanying drawings, Figure 1 is a perspective view of an invalid elevator and truck embodying the features of this invention. Fig. 2 is a detail view showing the raising and lowering means. Fig. 3 is a hori- Zontal section on dotted line 3 3 of Fig. 2. Fig. 4 is a transverse sectional view through the carrier. Fig. 5 is a transverse section through one of the body-piates and its supporting side arm.

In the construction of an elevator and truck embodying this invention I have provided a supportingstandard 1, which in this instance is of tubing bent to form a base portion 2 and an upright portion 3. To the forward end of the base portion is fixed an axle 4, and upon the outer ends of the axle are mounted carrying-wheels 5. The rear end of the base portion is provided with a bracket 6, secured to the standard 1 in any suitable manner, as by means of clips 7, held in position by bolts 8 passing through suitable openings in said bracket. In the bracket 6 is rotatably mounted a caster-wheel 9, upon which caster and the carrying-wheels 5 the weight of the truck and its load is supported. To prevent the truck from tilting sidewise to any considerable degree, the bracket 6 is provided with two rigid downwardly-turned feet 10, which terminate a little distance above the floor. At its upper end the standard 1 is bent forward in a plane with the base portion 2 and at its forward extremity is provided with an upwardlyextending yoke 11, the lower portion of-which is in cap form and is adapted to be brazed upon or otherwise secured to the tubing forming said standard.

A lifting-arm 12, formed from tubing, has fixed thereto at a point between its ends a supporting-bracket 13, by means of which said arm is pivotally mounted within the yoke 11. At its opposite ends the lifting-arm is provided with cap-

pieces

14 and 15, between which and over an upward projection from the bracket 13 a truss-rod 16 extends. Tension is placed upon the truss-rod 16 by means of nuts 17, turned upon its opposite ends. Between ears 18 upon the cap-piece 14 is piv otally suspended a supporting-link 19, and between ears 20 upon the cap 15 a rack-bar 21 is pivotally mounted. The link 19 pivotally supports a carrier 22, comprising a yoke 23, having hooks 24 at its opposite ends. Arms 25, made in pairs of a single piece and in yoke form, are supported within the hooks 24 of the yoke 23, the lower ends of said arms being bent to form rectangular eyes 26, within which the tubular side rods 27 of the carrier are supported. Set-screws 28, passing through suitable openings in said eyes and bearing upon said rods, hold the arms in position upon said rods. Body-plates 29 are slidably mounted upon the side rods 27 by means of box-loops 30, formed integral with said plates. The carrier 22 is made extensible by providing extension-

rods

31 and 32, which telescope with the tubular side rods 27. The head-end rods 31 support head-plates 33, and the foot-end rods 32 carry foot-plates 34, said head-plates and foot-plates, like the bodyplates 29, having box-loops 35, adapted to surround the extension-

rods

31 and 32. The

rods

31 and 32 may be fixed in position relatively to the side rods 27 by means of setscrews 36. The two sides of the carrier 22 are releasably connected by means of chains 37 secured to one each of the extension-

rods

31 and 32 and arranged to have a snap-hook connection with a link 38, secured to the opposite extension-rod.

The lifting-arm 12 is tilted to raise and lower the carrier 22 by means of a crank 39, which crank is secured upon the end of a wormshaft 40, rotatably mounted in a casing 41. A worm 42 is fixed upon the shaft 40 and is adapted to mesh with a worm-wheel 43, said worm-wheel being rigidly secured to a shaft 44, extending transversely of and rotatably supported within the casing 41. In the casing 41 is formed a vertical guideway 45 for receiving the rack-bar 21, said bar being held in position within the casing, so as to engage the teeth of a pinion 46, fixed upon the shaft 44. The casing 41 is pivotally supported upon a bracket 17, secured upon the rear side of the upright portion 3 of the stmporting-standard 1. Handles 48, projecting from the bracket 17, afford means for propelling the truck from one place to another.

in order to keep the carrier22 from swinging laterally, it may be connected with the upright portion 3 of the tr uck-f rame by means of a hook 49, adapted to engage an eye 50 on said carrier and having at its other end an eye 51, slidably mounted upon a guide-rod 52, fixed to the upright 3.

In use the elevator and truck are moved to the table or bed upon which the patient lies. To bring the carrier 22 into position to receive the patient, the base 2 of the truck is pushed under the bed and the carrier swung around to a position parallel with and above the patient, the hook a9 having first been disengaged from the eye 50. The sides of the carrier are then separated by disconnecting the chains 37 fromv the links 38, and the carrier lowered to the level of the patient by turning the crank By loosening the setscrews 36 the extension-

rods

31 and 32 may be moved to adjust the length of the carrier to correspond with the height of the patient. The supporting-

plates

29, 33, and 34 are then gently pushed beneath the patient, said plates being slid longitudinally of the

rods

27, 31, and 32, if necessary, to provide a comfortable support for the patient. The arms 25 may be moved longitudinally of the side rods 27 in order to balance the weight of the load upon the yoke 23 by first loosening the setscrews 28. The sides of the carrier having been connected by means of the chains 37 the patient may now be lifted from the bed or table by turning the crank 39, thus rotating the pinion &6 and moving the rack 21 downwardly. This downward movement of the rack tilts the lifting-arm 12, raising the forward end thereof and tilting the carrier 22. The truck is then moved away from the bed, and if the patient is to be taken into another room the carrier 22 is turned into line with the truck and secured in this position by means of the hook LE). Upon arriving at its destination the carrier is lowered upon the bed and the sides of the carrier disconnected and withdrawn from beneath the patient.

My invention is not restricted to the precise construction and arrangement of the parts herein shown and described, as such construction and arrangement may be varied or modilied without departing from the spirit and scope of the invention.

1 claim as my invention 1. In an invalid truck and elevator, in combination, a truck comprising a rigid upright standard; an arm pivotally supported by said standard at a point between the ends of said arm; a carrier suspended from one end of said arm; a rack-bar connected with the opposite end of said arm; a pinion rotatably supported in bearings pivotally mounted on said standard and adapted to mesh with said rack-bar for moving said bar; and means for rotating said pinion.

2. An invalid-carrier comprisingtwo separable sides, each of which sides is longitudinally extensible.

An in valid-carrier comprising two separable sides, each of said sides comprising adj ustable supporting-plates.

4(- An invalid-carrier comprising two side rods and extension head end and foot end rods telescoping with said side rods.

5. An invalid-carrier comprising two separable sides, each of said sides comprising a side rod and supporting-plates slidably mounted on said. side rod.

6. An invalid-carrier comprising separable sides, each of said sides comprising an extensible side rod and supporting-plates adjustably mounted on said side rod.

7. An invalid-carrier comprising two separable sides, each of said sides comprising extensible side rods of square cross-section, and supporting-plates having box-loops slidably mounted on said rods.

8. An invalid-carrier provided with a supporting-yoke for each side of said carrier, the arms of which yokes are adjustably connected with said carrier, said yokearms being adjustable longitudinally of said carrier, a yoke releasably engaging said arms for supporting them, and means for pivotally suspending said last-mentioned yoke.

9. In an invalid-truck, in combination, a truck-frame comprising a base portion and an upright standard; supporting-wheels rotatably mounted at one end of said base portion; a pivotal bearing at the other end of said base portion; a supporting-wheel rotatably mounted in said pivotal bearing; feet fixed with relation to said base portion near said last-mentioned wheel and extending to a point a little above the floor; and a carrier supported by said upright standard.

RICHARD LEFFMANN.

Witnesses:

L. L. MILLER, Gnoneu L. CHINDAHL.