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Publication numberUS819690 A
Publication typeGrant
Publication dateMay 1, 1906
Filing dateApr 28, 1905
Priority dateApr 28, 1905
Publication numberUS 819690 A, US 819690A, US-A-819690, US819690 A, US819690A
InventorsDavid K Bryson
Original AssigneeBryson & Howe
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 819690 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

No. 819,690: PATENTED MAY 1, 1906.





Patented May 1., 1906.

Application filed April 28, 1905- Serial No. 257.843.

To all whom, it may concern.-

Be it known that I, DAVID K. BRYSON, a citizen of the United States of America, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Cycle-Pumps, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in cycle-pumps and the invention has for its object the provision of novel means for pumping a current of air or liquid by compression.

Another object of my invention is to provide a cycle-pump capable of compressing and forcing air or liquid, the capacity or speed at which the air or liquid is discharged varying accordingly with the variable speeds at which the pump may be operated.

A further object of this invention is to provide a novel device for compressing air or water which will be extremely simple in construction, strong and durable, comparatively inexpensive to manufacture, and highly efficient for the purposes intended when operated.

Briefly described, my improved pump comprises a drum or casing having an inlet and an outlet port, and insaid drum or casing is j ournaled a shaft, upon which is mounted a wheel or head. A piece of rubber tubing through which the air or water to be compressed passes is arranged within the drum or casing surrounding the wheel or head, and mounted in the casing is a compressing member or roller adapted to squeeze and collapse the rubber hose or tubing as the head or wheel is revolved within the casing.

The construction above described will be hereinafter morefully set forth and then specifically pointed out in the claims, and referring to the drawings accompanying this application like numerals of reference designate corresponding parts throughout the several views, in which Figure 1 is a side elevation of my improved pump. Fig. 2 is a front elevation view of the same. Fig. 3 is a vertical sectional view of the pump. Fig. 4 is a front elevation view of the pump, the disk of my improved pump being removed; and Fig. 5 is a vertical sectional view of a casting forming the drum or casing of my improved pump, showing thetubing mounted therein.

To put my invention into practice, 1 cmploy a drum or casing 1, the one side of which is open, as indicated at 2, while the closed side thereof is provided with outward y-m tending protuberances forming bosses 3 and 4, the boss 4 being provided with an aperture 5, which serves functionally as an oiling port or opening. The bosses 3 and 4 serve as journal boxes or bearings for a shaft 6, the end of the shaft lying within the casing being slightly contracted, while the end of the shaft lying without the casing is slightly enlarged and is adapted to be provided with a suitable belt or pulley wheel, (not shown,) or the shaft 6 may represent the drive or armature shaft of a suitable motor. Upon the contracted end of the shaft 6 I mount a wheel or head 7, the edges of which are provided with peripheral flanges 8 S, forming a peripheral guideway 9 for a compressing member or roller 10, which is also mounted within the casing 1. To retain the wheel or head 7 upon the shaft 6, I employ a disk 11, a washer 12, and a screw 14. The contracted end of the shaft 6 is provided with a screw-threaded aperture 15, in which the screw-threaded shank of the screw 14 is adapted to engage and retain the washer 12, disk 11, and wheel 7 upon the shaft.

The casing 1 is provided with two tangential enlargements 16 and 17, said enlargements having openings or ports 19 19 formed therein, whereby a piece of rubber tubing or hose 20 can be inserted within the casing and arranged to surround the wheel or head 7, as clearly illustrated in Fig. 4 of the drawings. I preferably employ a tubing or hose of a collapsible nature, such as rubber, and the air or liquid to be compressed is preferably fed in one end of the hose or tubing and passed out of the casing through the opposite end of the tubing. The cycloid arrangement of the tubing within the casing provides a circuitous path for the air or liquid to be pumped, and to force and pump air or liquid I employ a compressing member or roller 10, conforming substantially to a cylinder, which is provided with a sleeve or coating 21, adapted to form a frictional contact of the member with the Wheel or head 7 and also frictionally engage the tubing or hose 20. In Fig. 3 I have illustrated the compressing member within the casing and collapsing the tubing at one point of the cycle. The compressing member or roller is made of a suflicient size to fit within the annular compartment 22, formed between the periphery of the wheel or head 7 and the inner sides of the casing or drum 1. I have provided the bearing of the casing with a standard or retaining-rod 23, which is employed to hold the casing stationary when the pump is being operated by a motor and support it when operated by a pulley and belt.

In operation the piece of tubing or hose 20 is adapted to be collapsed, yet at the same time of suflicient stability and strength to withstand a pressure capable of being produced by my improved pump. As the roller revolves it creates a constant suction or vacuum throughout the cycle in the rear of the roller while the air or liquid in front of the roller is forced ahead throughout the cycle. The air or liquid to be pumped is drawn into the tubing by suction and discharged by compression, and the discharge of the air or liquid depends upon the rapidity at which the pump is operated and also upon the area and size of the casing and tubing employed. The rotation of the head or wheel 7 by the shaft 6 causes the compressing member or roller 10 to move at approxi mately one-half the speed of the head or wheel, and as the roller travels .around within the drum or casing in obedience to its frictional contact with the drive-wheel or drum it collapses and compresses the tubing, as clearly illustrated in Fig. 3 of the drawings. The point of collapse in the tube is a traveling point throughout the entire cycle, which roduces a suction in the rear and pressure ahead of the traveling point of collapse. The rapid rotation of the head or-wheel 7 causes the air or liquid within the tubing to be ejected therefrom with considerable force and rapidity, especially when a nozzle is used in connection with the discharge end of the tubing or the end of the tubing is contracted.

While I have herein described the compressor as being adapted for air and liquid, it is obvious that various gaseous substances Y and liquids can be readily propelled by my improved pump, and with these facts in view I do not care to have it understood that the pump is in any wise limited to a specific use.

While I have herein described the preferred manner of construction of my improved pump, it is obvious that various changes may be made in the details of construction without departing from the gen= eral spirit and scope of the invention.

What I claim, and desire to secure by Letters Patent, is

1. A pump of the type described corripris- 6 drum through one of said openings and sur- 8o rounding said wheel and protruding out of the drum through the other of said openings and a compressing-roller mounted in said drum and adapted to frictionally engage said wheel and said tubing.

3. A motor of the type described consisting of a drum, a shaft journaled in said drum, a wheel mounted upon said shaft, a collapsible tubing passing through said drum, and a roller mounted within said drum and frictionally engaging said wheel and said tubing and revolved around the shaft by the move ment of the wheel to collapse said tubing.

4. In a pump, the combination with a suitable support,,of a drum supported by said support, a wheel ournaled in said drum and actuated from the exterior of said drum, tubing arranged within said drum, a roller mounted within said drum the periphery of the roller bearing on the periphery of the wheel and actuated by said wheel to collapse said tubing, substantially as described.

5. In a pump of the type described, the combination of a casing having an opening in one side, a shaft journaled in said casing, a disk carried on the end of said shaft and fitting the opening in the side of the casing, a wheel carried by said shaft within the casing,

a tube arranged within the casing and surrounding said wheel, and having its ends extending outside the casing and a roller bearing against said tubing and against said wheel and adapted to compress the tubing when the wheel is rotated.

In testimony whereof I affix my signature in the presence of two witnesses.

DAVID K. BRYSON. Witnesses:


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2534855 *May 25, 1949Dec 19, 1950Corneil Ernest RTube flexing pumping machine
US2899904 *Apr 27, 1955Aug 18, 1959 Roller pump
US2899905 *Sep 11, 1956Aug 18, 1959 becher
US3101675 *Apr 24, 1961Aug 27, 1963Technicon InstrPump
US3366071 *Jul 29, 1966Jan 30, 1968Lkb Produckter AbPeristaltic pump
US4923375 *Mar 1, 1989May 8, 1990Ejlersen Henning MHose pump, in particular an insulin pump
US5630711 *Sep 8, 1995May 20, 1997Graymills CorporationPeristaltic pump having a loop-shaped tube path
US5897300 *May 19, 1997Apr 27, 1999Graymills CorporationQuick-release bolt for use with pump housing
WO1986006796A1 *May 15, 1986Nov 20, 1986Henning Munk EjlersenA hose pump, in particular an insulin pump
International ClassificationF04B43/12
Cooperative ClassificationF04B43/1238
European ClassificationF04B43/12F