US1617517A - Windshield cleaner - Google Patents

Description

Feb. 15,1927. 1,617,517

Original Filed' March 20. 1924 2 Sheets sheet 1 'www Feb. 15, 1927. 1,617,57

F. G. FOLBERTH ET AL WINDSHIELD CLEANER Original Filed MaIGh 20, 1924 2 Sheets- Sheet 2 alici um! Patented Feb. 15, 1927.

FREDEECK G. EOLBERTH ANE'WILLIAM M. roLBER'rr-rfor CLEVELAND, oHIo, As

'sIGNoRs 'ro TE100 PRODUCTS roEA'rIoNoE NEW YORK. h

`WINDS'HIELD CLEANER.

original applicati-on ined maren 2o,

ConroaarioN, or BUFFALO, VNEw Yonx, A `Cola- 1924, Serial No. 700,659.v Divided and this application filed January 24, 1925. Serial N0. 4,607.'-

This invention relates to windshield clean-I ers', and more particularly to suction oper-l at'ed cleaners adapted t0 be operated by the suction of the intake manifold/of an internal combustion engine. I

This application is a division lof our copending application'for windshield cleaners,4

iile'd March 20, 1924, Serial No.7 00,6591 n lthesaid application,

isl provided with a cylinder head at its outer end and is provided with a flared edge at'its inner end and 'a grooved clamping member adapted to surround the contacting yflared 55. inner ends ot the cylinder sections to secure them to each other.

A further object of the invention is to pro` vide improved valve shifting mechanism for a motor of this character.

'.A vstill further object of the invention is vthe vprovision of valve shifting vmechanism consisting of a pivoted'member adapted to be swung on its pivot by a movingpart of a motor, a spring connected to said pivoted member and 'adapted to be maintained under tension,. and a valve supporting member adapted to be engaged by said pivoted mem-V berl to automatically shift the valves of thel cleaner motor, 40 In the accompanying.(liawings, we have shown one embodiment of the invention. In

this showing:

Figure 1 isa perspective view of a windshield cleaner, y l

Figure 2 is a vertical transverse sectional View through the cleaner when in position on a windshield,

vFigure 3 isa perspective view of one of 'the sections of the cylinder,

Figure .4 is a vertical sectional stantially on line 4--4A on Figure the valve shifting member,

we have describedl amol tor casing construction, and the valve mecha-l limited tot'the mqtor casingl shaft is provided Figure 5 is a similar view substantially'on f line '5 5 of Figure 2, showing the manner in which the valveshifting member is; engaged by a movable part of' a motor,-

Figure 6 is ahorizontal sectional view through a portion of the cylinder and closure member showin-g'the passages in the closure member,

Figure 7 A is anf exterior elevation of the closure plate, parts being shown inI section,

`Figure`8 is a `detail view ofthe valve shift ing mechanism, and,

Figure 9 is a similar view of the clamp. Referring' to the drawings, the reference numeral 1 designates a windshield frame of the usual construction having a pane of glass 2 or other transparent material arrangedk therein. rl`he cleanermotor, shown as a cy-V lindrical casing, is designated generally by the reference numeral 3, and is adapted to be i arranged on the interior of thefwindshield frame, asA shown. The motor is provided with a transverse power shaft 4, adapted to be oscillated and the outer end of this shaft is adapted to receive-a cleanerarm 5. The with atransverse passage for thereception of the end of 'the cleaner arm which is secured against displacement "by a setscrew 6.r A nut lock 7 is arranged -on the vset screw. This', however, forms no part of the present invention, it being disclosed and claimed in our prior Patent No."

1,472,644, granted October 30, 1923. The

lower-'end of the cleaner armls provided withA a`suitable retaining device or holder 9 and a cleaner element is 'arranged in this i,

holder. 'p The cleaner element consists of a backing strip 10 of meta-l or other suitable material and a rubber'strip 11 adapted to engagethe lsurface of the windshieldv to be j cleaned.I

-cated at 14 and is further provided with a recess or cut-out portion 15 for the reception of the closure plate on which the valve mechanism is mounted. yOpposite the cut-out por As' stated, the motor casing' is 'formed in" l being curved in cross section to conform to the cylinder'wall, as shown in Figure 1 of the drawings. This plate extends overa portion of the exterior ofeach section of the cylinder wall, and is provided with an inwardly extending projection 20 adapted to be received in the 'recess 15. The upper portion of the -plate is provided with a lug o`r projection 21 adapted `to be received in an opening 22 formed in a substantially .semi-circular clamping member 23. The detail construction of the clamping member is -shown in Figure 9` of the drawings. As

shown, it is .adapted to extend around the cylinder at the point where the two sections)y are connected 'to each other and from the top of the closure plate to the bottom.- y This clamping member is provided with a substantially V-shaped groove 24 adapted to receive the flared ends 14 of the cylinder sections and thus cla-mp them to eachother.

The lower end of the clamping element is vprovided with ears 25 having openings 26- for the reception of screws or other fastening elements which are received in threaded Vopenings in the closure plate.

lVithin the cylinder, we provide a pair of spaced pistons, each of which comprises ka plurality of disks 27 of metal or other suitable material having a packing strip 28 arranged between them.v This packing stripl -is of larger diameter than the diameter ot the cylinder, forming a Harige 29. Theparts of the piston are secured to each other by a' bolt 30, passing through openings in the metal lates. The two pistons areconnected to eacl other by-means of a connecting member 31. having offset ends `These offset ends are .provided with openings for the recept-ion of the bolts 30. Intermediate the offset ends, the connecting member' is provided with spaced openings 33, forming 'l a rack. A segmental gear 34 is mounted on l the power shaft and this gear is' provided with teeth "adapted to mesh with the rack.

l The'upper portion of the gear is provided l each end of the arcuate portion, there is prowith an arcuate surfacey36 curved on a radius from the centerof the shaft, and at vided a shoulder 37.

The closure plate is provided with a pair l vof longitudinally extending passages 38,

omipunicatingfwith transverse passages 39 extending through the thickened portion 20 to the interior of the cylinder. The outer ends of the passages 38 are connected to conduits 40 which extend longitudinally of the cylinder andl communicate `with the opposite ends. thereof through openings y41 (see Figure 4). The closure platel is further provided with a' passage'42, having a tube 43 arranged in its outer end. This tube is adapted' to receive a suitable conduit (not shown) which is adapted to be connected to the intake manifold of an internal combustion engine' (not shown) or other suction producing means. Intermediate thel ends ot the closure plate, the passage 42 communicates with an angular-ly disposed passage size adjacent its upper end and is provided with a valve seat 45. lThe lower portion of the passage is threaded and is adapted to receive a threaded valve sternl 46, having a valve 47 formeel on its yupper end. The valve stem projects from the closure plateand is provided with a knob or handle 48. The upper end of the inclined passage 44 communicates with a transverse suction passage 45 arranged between the passages 39 ,(see Figure 6).

The suction passage 45 is adapted to bex '44. As shown, the passage 44`is reduced 1n y connected to either of thepassages 39 and 95 suitable automatic valve mechanism is provided to alternately connect the passages 39 to the suction passage V45 to reciprocate the pistons in the cylinder. As shown, a pin 49 is arrangedon the inner face of the closure 'plate and extends inwardly therefrom.- This pin is adapted .to supp-ort a valve shifting member. The valve shifting 'member comprises a main portion 50, pivotally mounted on the pin 49 adjacent its lower end and curving upwardly. The upper end of this member is provided with 'an angullar extension 51 ada-pted to be arranged over the arcuate portion 36 of the segmental gear. Adjacent the bottom, the valve shitting member is provided with a loopl 52 and an arm 53 extends upwardly from this loop.

whereby the valve lshifting member is sup-' ported at two points. The upper portion of the arm 53 is provided with an arcuate face 54, curved on a radius from the center of vThe arm is pivotally mounted on the pin 49 the pin 49 and shoulders 55 are arranged at the oppositey ends of this arcuate face. coil .spring 56 is connected at one end 'of the loop 52 and the other end of the spring is L. connected .to a pin 57 mounted on t-he inner face of the thickened portion 20 of the closure member. -A valve supporting mem-- ber 58 is arranged adjacent the valve shifting member. As shown, the valve supporting member is provi-ded with an opening 59 adapted to receivea pin 60 carried by I i the. closure member adjacentl the top ofthe cylinder to pivotally .support this member.'

new,

.The valve supporting member further lprovided with/a central cut-out portion 61,

arcuate face 54 of'tlie valve shifting member and is adapted 4to engage the shoulders.

55. A vvalve 64 ismountedbn the opposite side of the valve vsupporting member or carrier to move. over the inner face of the lthickened portion, 20of the casing part- 19 as a valve seat, the-*valve being cup or dish shaped and beingv adapted to extend over the suction passage and one of the conl necting passages -39 to establish' communication betweentlie source Aof suction and one end of the'cylinder, as shown -in Figure 6 of the drawings. This valve is provided witha stem passing through .an opening 66 in the valve supportingl member.A

The llower end of `the' -valve supporting tion the valve cach timel vit is moved.

member is provided with spaced projeetions 67 which are arranged on opposite sides of fthe pin 49-tolimit the inovementof the lvalve supporting member te properly-.posi- 'In operatibnv the manually controlled valve 47 is opened when operation of the cleanerfisdesi'red, by' turning the knob (48 and the cleaner motor is thenjplaced in communie-ation with the source .of'suction or A pressure. AIn Figure 4 .of the drawings', .the

valve shifting 'member is shown moved to J We claim: e

l: ln a motor icomprislng a"cas1ng,'a movthe right, andthe valve is then in a position y to connect the rightend Vofthe cylinder .to

the source of suction. -The leftlend. o f they cylinder is vin communication with the atclamping band 23.v The pistons then niove n iospliere through ythe lefttube 40, the uncovered duct 39 into the space between the pistons, and thence through tliegiinpacked f,

]oint betweenthe casing sections 12 and the towardthis end Ofjt-liecyIinder, oscillating vthe gear and shaft in a counter clockwise direction. As the gear moves, the shoulder i 37 at theright of the cylinder moves toward the angular extension 5l of the valve shifting member. As the pistons approach their limit of movement, the shoulder enga-ges the angular .extension to move the valveshitting member in a counter clockwise direction.

The initial -movement of the valve shiftingmember .is by Contact with the shoulder 37 and isat the same speed as the speed of the gear. During 4this movement, the left'shoulder 55 of the arm 53 moves away from the finger 63 of the valve vsupporting member and the right shoulder approaches it. The spring 56, connectedto the loop'52 is initially under tension tending to draw the lower end of the valve-- shifting m'ember in a counter clockwise Idirection and the valve shifting'member' is'shown at its limit of' movement. ink this direction. Aline connecting thecnds of the spring is then below the pin-19. Asthe valve shifting member moves ina counter clockwise. direction, the line connectingthe-endsofthe lpin moves upwardly above the pin 49 and .the Valve shifting member. is then snapped or shifted to its other position. .Substantially at the instant when the valve shifting member is snapped to its second position, the right shoulder 55 of the arm 53 engages the linger 63 to .shift the valve supporting' member and the valve.-

'llie valve lis ,thus positively -shifted with a snap or quick action and the possibility, of.l

the valve stopping 4on dead center isfeliminated. The movement-ofthe vvalve supporting member is limited by an engagement of they shoulders 67and the pin 49. The op:

posite end .of thecylinder is then connected'A` to thesource of suction and the pistons move in the opposite direction-to turn the 'shaft andthe segmental gear tn a clockwise direction. The 4operation o f shifting thevalves whennioving in this direction, issubstantially the same as thatlieretofore described and repetitionis deemed unnecessary. -It is to be. understood that the. form of ourl invention herewithy shown and described is to be takenasa preferred'example of the same, and .that various changesin the shape.K size, and arrangement 4of vparts may be re'- sorted gto without departingfrom .the spirit of., the invention or adapted tofbe actuated by V`differential pressure, and valve -mechanism to alternately" .connectfsaid casing on'oppositesides 'of said `movable vmember `to a 'source of differential pressure, .said valve `mechanism comprising a pivoted valve shifting member,said.memj r being'provided witliyan angular exteni' sion adapted to 4be engaged by said'movable inember,an arm laterallyV oil'setI troni and carried by said val-ve shiftingA inember, said army being .provided with spaced l shoulders,.

a valvesiipporting member adaptedy tolabc alternately engaged by said yshoulders,'a valve. carried by said supporting member; and" a, jspring `fixed at one end pand' secure'dLto 'said valve .shifting member. 'between the main bo'dy portion of the latter and said laterally ol'set armto shift said valve shifting member to either of two positions.

2. A device constructed in accordance with claim l wherein' said valve supporting member is arranged alongside of said arm and has 'a finger struckv out between said shoulders and adapted to be by said shoulders.

' 3. A'motor comprising a casing, a movable member mounted in said casing, a segmental gear meshing with said `movable alternately engaged *member, and means for alternately establish-4 ing a differential pressure on'opposite sides. of saldl movable member, said means com-' prising a pivoted valve shifting member hav*- ingy an angular extension, said segmental ear being s y,ould'ers a apted to alternately engage said .a extension to shift said valve supporting meminga shaft'for rocking the latter,

fber, an arm carried by said valve shifting.'

member, said 'arm being rovi'ded with ,an arcuat'esurface and a shouder at each end of said surface, a valve supporting member arranged adjacent said arm, a i'ngerextnding from said valvesuppor'ting member 4over said arcuate'surface and vadapted to be enga edby oneof said shoulders when said va ve yshlftinvP member ismoved, a valve care ried by lsai supporting member, 'and a spring securedto said valveshifting member and'dapted to shiftl it to either of two positions. j

4. A device constructedin accordance with claim, wherein said'valve shifting member y :1s 'mounted lon a pin extending through 1t adyac'ent one end and said arm ifs-connected thereto by means'o'f a loop, said spring being secured' to [said-loop'. l

. 5.y A device constructed in accordance with claiml .23, wherein said' Vvalve shifting member comprises. a main ,body`portionarranged 'substantially parallelf to said arm and, conshaft, -Valve mechanism for operatively ad' lmttlng operating fluid pressure to the casing and including a valve shifting member pivotall mounted at the opposite side of the sha fromlsaid shoulders and extending about said shaft and between said shoulders member after the latter has been moved a.

for engagement with and operation by said shoulders, a movablevalve carrier havin a lay connection with said shifting mem er or beingoperated thereby, and resilient-- means acting quickly to move said shifting rovided with`a pair o'f spaced' of said pivot pin and bein predetermined distance by either of said shoulders. I

7. In*A a fluid pressure motor, a casing partf having a shaft bearing and an adjacent valve seat, a shaft journaled in the bearing for rocking` movement, a pivot pin arrangedV on said' casing part, a valve on the valve seat, a 4carrier fr-the valve movableback and forth for shifting the-valve to two p6sitions on thevalve seat, said carrier having spaced shoulders on opposite sides ofV the pivot pin for engaging the 4same to limit its valve-shifting movements, a shifting member pivoted on-s'aid pivot pin and .rockable -by and during the rocking of said shaft, said shifting member having a laterally offset l arm also (pivoted on said pivot pin and arranged a jacent said valve carrier, a play connection between saidcarrier and arm and permitting limited independent movement `of saidzshifting member during which said shifting member is actuated from said shaft, and a spring anchored at one end to one side arched about the latter is'connected tosai shifting member at a point on the opposite side of said pivot pin for movement under tension toA opposite sides of the plane which includes said pivotpin and the anchored end ofsaid.y

8; n a fluid pressure motor, a casing part 4having a valve seat, a valveV on the seat, a carrier for the valve pivoted at one end on ,the casing part to move the valve-on its seat,

the free end of said carrier having spaced shoulders, a shifting member pivoted on said casing part with its pivot extendin between said shoulders for engagement t ereby to -limit the movement of said carrier, said shifting member-being rockable on its pivot I by' a moving art ofthe motor and having an armk exten lng alongside of said carrier J toward the pivoted end thereof, a play connection between said arm and said carrier for permitting limited relative movement A' thereof, and spring means acting to accelerate the rocking movements of said shifting member which are initiated bysaid moving part 'of the motor.

In testimony tures. 'l FREDERICK G. FOLBERTH.

i WILLIAM M.' FOLBERTH.

whereof` we aix our signa`

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