US1414573A - Air pump - Google Patents

Description

A. KREHLIK.

MR PUMP.

APPLICATION FILED uov. $0, 1920.

Patented May 2, 1922.

-"r ris ALBERT KREHLIK, 0E CLEVELAND, OHIO.

- err, PUMP.

Specification of Letters Patent. Pgtgntgfl B1 3? 2 1922.

Application filed. November 10, 1920. Serial No; 423,153

- driven? air pumps particularly designed and adapted for usein connection with a suitable motor driven element or member of the motor of a vehicle such as an automobile, motor truck, or the like, the improved pump being designed to be used as a supplemental device or appliance for inflatingpneumatic ti'resof such motor vehicles.

The primary object of the invention is to provide a generally improved air pump or appliance of the class indicated,- which will beexceedingly simple in construction, cheap of manufacture, and eflicient in use." A further object is the provision of a pump of this class which may be readily at tached to'or detached from a suitable part or support of the motor and provided with means whereby the piston driving wheel and the pump body may be moved into and out of operative position with respect to the motor driven element (in the present instance the fan belt), the improved appliance being adapted to be normally supported out of contact with the motor driven element.

With the above mentioned and other ends in view, the invention consists in the novel construction, arrangement, and combination of parts, hereinafter described, illustrated in one of its embodiments in the accompanying drawings and particularly pointed out in the appended claims.

Referring to the drawings, forming a part of this specification, Figure 1 is a rear view of the improved .air pump, detached, a portion of the pump body being broken away for the purpose of clearer illustration of the parts. i

Fig. 2, a side elevation of the same.

Fig. 3, a transverse cross sectional view, taken on line 33 of Fig. 2, and illustrating in particular the manner of mounting.

Fig. 4:, a front elevation of the same attached to an ordinary motor such as used on the ordinary motor vehicle.-

Similar numerals of reference designate like parts throughout all the figures of the drawings.

"As a means of l'nounting the improved pump in suitable relation to a motor casing i, and a suitable motor driven element 2, as

for example the fan belt, 'the improved pump body'and the piston driving elementor wheel hereinafter described or preferably mounted by means of a support consisting, in the present instance, of an attaching base 32and anroffset supporting arm3. The attachingbase 3, may be provided with a bolt opening 3, to receive one of the cap screwsl' (see Fig. 4),.of the motor casing. The base portion of the arm 3, is provided at.

one [side -with anal-in 3, )rovided, in" the present instance, with bracket 4;, having an opening for securing a spring resisted ad- Justing device, hereinafter described, for moving the pumpidriving'wheel into and out of contact with the motor driven element 'or fan belt 2.

' If desired, the arm'3, be provided with ad arm 3, which may be provided with an adjusting screw 5, adapted to engage with a: suitable part-'of the adjacent'motor vehicle to prevent any twisting motion of the support on the attaching screw 1 As a means of connecting the pump cylinder or body 6, to the offset arm 3, so as to swing in a longitudinal plane at one side of the lat ter, the cylinder body 6, is provided with a head 6 terminating in an arm 6*, pivotally and detachably connected to the top of the .arm 3, by means of a pivot attaching element 7. p

The head '6, is preferably provided with the conventional form of ball valve arran ed within the nipple 6", adapted to discharge the fluid or air into asuitable conduit pipe or hose leading from the nipple 6, to the valve stemof the tire to be inflated;

The tubular pump cylinder 6, is provided with a ring head 6, the heads 6 and 6, being connected by connecting bolts 8, eX- tending-through lugs on the said heads. The I ring head 6 is provided with an arm 6 eX- tending at one side of the planeof the pump, cylinder and provided at its lower end with a laterally extending shaft bearing 9, and arranged to extend in a plane with the offset portion 3 of the arm 3.

by means of a nut 10", and washer 10". The

shaft 10, is provided with a piston driving wheel 11, adapted to receive its motion from the motor driving element or belt 2, when thrown into and out of contact with the latter, as hereinafter referred to. The wheel 11, is provided with a connecting rod '12,

leading :to the piston 13, the latterbeing pro- V vided with the usual flexible valve disc 13, 10

which upon the down movement of the pis- "ton will permit airv to pass into the piston chamber and upon the return movementof the piston will discharge the same through the valve in the nipple 6.

As a means of moving the rocking pump cylinder 6, together with the driving wheel 11,: into and'out of operative relation to the motor driven element or belt 2, the shaft bearing '9, is provided with a threaded rod orlink 14, extendingthrough an opening in the bracket 4:, and adapted to be adjusted by means of a winged adjusting nut 15.- As

7 a means of moving the shaft bearing 9, and

wheel-l1,toward the driven be1t 2, and par-, ticularly; holding said wheel 11, in contact flwith the belt 2, under spring resistance, a

V 1. An air pump, comprising a pump cylinder, a 'valved cylinder head provided with a supporting arm extending at a'plane at one side of saidpump cylinder, a cylinder ring head on the opposite end of said pump cylinder and provided with an arm extending in an opposite direction and in a plane with said supporting arm and prov'ided'with a laterally extending shaft bearing, a shaft in the latter provided with. a friction wheel on the opposite side of said last mentioned arm,a connecting rod on said friction wheel extending through said cylinder ring head,

a piston in said pump cylinder connected to a said connecting rod, and connecting bolts on the outside of said cylinder detachably connecting said valved cylinder head and cylini der ring head to each other and on said pump cylinder, V

2. In a motor driven air pump, the combination comprising a support including an 1 attaching base andan offset supporting arm, 7

a pump cylinder carried by and adapted to rock atone side of the latter, a piston driving wheel, an arm carried atone end of said pump body and having a transverse shaft hearing below said ofl'set'portion, a bracket on said support above said attaching base, and an adjustablespring resisted arm on sald bracket connectedto said spindle supporting member whereby said wheel and pump cylinder are adaptedto be thrown into and out of operative engagement with a driving elementg." r

In testimony whereof I haveafiixed my signature. c

ALBERT KREHLIK.

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