US 983405 A
Description (OCR text may contain errors)
H. R. 6v 0. A. SGHEIDLER.
Patented Feb.7, 1911.
4 SHEETS-SHEET 1.
@XH/Mmmm B. Mqurezf' H. R. & o. A. SCHEID'LER.
STREET SWEEPING MACHINE.
APPLIUATION FILED JAN. 21,1910. v
' Patented Feb. 7, 1911.,
, hl E v 3mm/tow i Rioleipler. Ud/6192er H. R. & 0. A. SCHBIDLER.
STREET SWBEPING MACHINE. APPLICATION FILED JAN. 21,1910. 988,405. Patented Fem, 1911.
4 anims-SHEET s.
Uacar. chez'iez B. Ma ur er. I Y
HQ R. & 0. A. SCHEIDLER.
STREET SWEBPING MACHINE. APPLIoATIoN FILED JA1.21,191o'.
' 'Patented Feb.7, 1911.
4 SHEETS-SHEET 4.
UNiTnD sTATEs PATENT OFFICE.'
HENRY n. SCHEIDLER AND oscAR A. senEIpLEn, or NEWARK, omo.
Patented Feb. '7, 1911.
Application led January 21, 1910. Serial No. 539,283.
'have invented certain new and useful Improvements in Street-Sweeping Machines, ot' which the following is a specification.
Our invention relates to the improvement ot' street sweeping machines and the objects of our invention are to provide a machine of this class of improved construction and arrangement of parts wherein is combined means for not only sweeping the loose dirt from a street, but for conveying the dirt from a rotary broom to a receptacle at the rear of the machine; to provide in connection with our machine, improved means for throwing the various moving parts thereof into and out of operation and for increasing and decreasing the speed of the vehicle, fan and broom and to produce other improvements the details ot' construction and arrangement of which will be more fully pointed out hereinafter. These objects we accomplish in the manner illustrated in the accompanying drawing, in which-- Figure 1 is a. side elevation of our improved machine, Fig. 2 is a plan view of the same, with a. portion of the flooring of the vehicle broken away for the sake of clearness in illustration, Fig. 3 is a sectional view on line X-X of Fig. 1, Fig. 4 is a. detail sectional view iii/the direction of the length of the machine, the same being taken through the rotary broom or sweeper, the dirt elevator7 and horizontal conveyer, other parts being removed for the sake of clearness in illustration, Fig. 5 is an enlarged sectional view on line y/--y/ of Fig. 2, Fig. G is a similar sectional View on line (z-wof Fig. Q, and, Fig. 7 is a detail view in perspective of an operating lever and its bearings which we employ in the manner hereinafter described. i
Similar numerals refer to similar parts throughout the several views.
In carrying out our invention, we employ a vehicle frame, which comprises suitably connected parallel side truck'or frame bars 1. the forward portions of which are curved inward toward each other to form a comparatively narrow forward frame extension 2. the ends of said reduced portion being connected by a forward end bar 3. The framework thus constructed, may be provided with a'suitable flooring 4, the greater portion of which is removed in the illustrations of the machine for the sake of clearness.' f
5 represent the front wheels of the vehicle which are mounted on a front axle 6, the latter being supported from the underside of the vehicle frame in themsual or by any desirable means.
7 represents the rear ground wheels which are carried by a rear axle 8 which is journaled in. suitable bearings depending from the underside of the.rear portion of the frame. Supported between the rear portions of the side frame bars 1, is a dirt receptaele or box S),the latter having its lower side covered by a drop door 10 which has one end hinged to the forward end of the box and its, remaining end normally closed by chains 11, the lower ends of which are connected with said door and the upper ends of which are' adapted to be wound on a shaft 12 which has a transverse bearing in the upper and rear portion of the box or receptacle 9. This shaft 12 is provided on the outer side of the box 9 with a ratchet whe-el 12 with which is' adapted to engage a pivotcd pawl 13 to prevent reversed rotation of the shaft 12.
From opposite points on the side frame bars 1 near the cen/ters of their lengths, extend downward rigid bearing arms 14 each of said arms having its lower portion formed With a longitudinal slotted opening 15 therein. In each of these slotted openings is slidably mounted a bearing block 16 and in these bearing blocks are journaled the spindled terminations 17 of the horizontal shaft of a rotary street sweeping broom 18. Connected with the bearing blocks 16, are the respective ends of a rope or cable 19 which extends upward from said blocks and over pulleys mounted in bracket arms 20 which extend from the frame members 1 and is connected with the underside of a lever or bar 21 which extends in the direction of the length of the machine and has its rear downturned end pivoted at 21a to the floor of the machine. A
The forwardly extending upper horizon-l pavement when desired. The lower'and'forward ortions of the bearin arm's 14 are 1o providled with short forwar ly and downs. wardly extending bars 23, the lower ends of which are connected b 'a transverse shaft 24,;whieh shaft exten s through the lower end portion of an elevator easing 25, the lat- ;15,ter `being inclined upwardly and yforwardly from the lower portion of the'sweeper .body
. 18 and having an enlarged u per end portion formed with a downwar rounded extension a. As shown more clearl in Fig. '20 4 of the drawin the upper side o the rear portion of the evator casing 25 is open as mdicated at 251? and in order to facilitate the directing of the dirt from the sweeper body 18 into said opening and on to the elevator to 25 be hereinafter described, we provide the upper side ofthe casing 25 at the u per end of the opening 25b with a hinge guard 4or baiiie plate 25 which is adapted to be supported at the desired upward incline through so the ymedi-um of a brace bar 25, one end of which is hinged to the plate 25c and the remaining horizontal en d portion of which is adjustably connected with asuitable keeper 25which is carried by the casing 25. As indicated at 25', we alsoprovide the lower end of the casing 25 with a downwardl inclined guide plate, which extendsin ront of the lower portion of the sweeper body 18 and from which the dirt is directed by the sweeper into said casing 25.
The lower and rear portion of the casing 25 is supported by inwardly projecting bearing portions of the bars 23 not herein shown, while the upper portion thereof is supported upon similar bearing projections or hangers 26 which depend from the v'frame bars 2 on opposite sides of the machine. Eachof these hangers 26 is provided with a bearing box 26a and in said bearing boxes are journaled the ends of a transverse horizontal conveyer shaft27, the latter carrying a screw conveyer 28 which is adapted to rotate vwithin the depressed rounded ,por-
tion of the head of the elevator casing 25,v
5,5 which forms a Vhorizontal conveyer casing. 'Y One end of the screw conveyer and its casing, communicates with a fan casing 29 which is located beneath one side of the ma- I chine frame and within which is mounted on an outwardly extending shaft 30 `a suite able fan. J ournaled in rearwardlyextending.. arms ofthe hangers 26 are the spindles 31 .of a roller 32 which -rollerextends through the upper portion of the elevator vcasing 25. W'Ihe spindle 31 carries adjacent to. one of its end bearings a sprocket wheel 33. The shaft 24 also carries a roller 34 (see Fig. 4). The rol1ers32 and 34 are-connected y'an endless'elevating a 'ron 35 the outer lface of which is provide with suitable elevating or conveying pro'ections 35".
36 represents a transverse sha t which extends beneath the frame members 2 in front of and above the conveyer said shaft having one of its-ends journa ed in a forward extensionof one of the hangers 26 and its remaining end journaled in a ha er 26b which depends from the opposing rame bar 2.
On the outer side of its bearing in the arm ofthe hanger 26, the shaft 36 carries a small 80 sprocket wheel 37, and said shaft also carries near the opposite side of the machine a sprocket wheel 38.
39 represents an endless chain belt which passes about and connects the sprocket wheel 37 with a sprocket wheel 40 carried on the shaft 27, the sprocket wheel 33 and a sprocket wheel 17 carried on the s indie 17 on the inner side of one of the bloc s 16.
Upon the forward and narrower portion of the frame of the machine, isI suitably mounted a desirable form of motor or power generating engine 41, which has leadin rearwardly therefrom the usual motor sha t 42 which carries a iiy wheel 43. Through a 95 coupling 44, the motor shaft 42 is connected with the forward end of a rearwardly extending horizontal shaft 45 which is rotatably mounted in a tubular bearing 46 which is supported from the floor of the machine. Extending through this bearing 46, the shaft 45 carries on its rear end a friction wheel 47.
In rear of the friction wheel 47 is provided a transverse shaft 48 which on its ends carries small sprocket wheels 49. In mounting 105 the shaft 48, we provide end bearing brackets 50 which rise from the side frame members 1 and a similar intermediate bearing bracket 51 which rises from the floor of the machine. In order to permit of the turnin 11'0 of the machine to the right or left, we pre erably form the shaft 48 in two sections, the sections being connected by suitable difv ferential 'gear mechanism contained in a casing 48a. As indicated more clearly in 115 Fig. 5 of the drawing, each of these bearing brackets 50 and 51 comprises an upwardly projecting tubular body, in which is rotatably mounted a bearing member 52, the latter extending through one end of the bracket 12o and having a depending rigid arm 53. The shaft 48 is journaled eccentrically in the internal bearing` members 52. Carried on the shaft 48 at the center of its length is a friction wheel 54, the periphery of which is adapted to be caused to frictionally engage the rear face of the wheel 47 The wheel 54 is formed on one side of its center with a hub 54a on which is provided a band 54b from the upper and lower sides of which project vpins 54".l With these )ins is engaged the bifureated end of abcl crank lever 55 the latter being pivoted" at the junction of its members beneath the Hoor of the machine. The rear arm of the lever 55 is pivotally connected with a rod 56 which extending forwardly is pivotally connected with an operating lever 57 which in turn is pivoted to an upright bracket segment. 58 which is suitably supported in connection with the floor of the machine. The lever 57 is provided with the usual form of pawl 59 which is adapted to engage the teeth on the upper side of the bracket 58.
Pivotally connected with the lower end of the arm 53 of the eccentric bearing member 52 which ismunted inone of the brackets is a rod 60 and connected with the corresponding arm of the eccentric bearing member which is contained in the bearing bracket 50 at the opposite side of the machine, is one end of a similar rod 61. The arm 53 of the intermediate eccentric bearing member 52 is Likewise connected with a rod 62. These rods 60, 61 and 62 extend forwardly and the rod 60 is pivotally connected with one arm of a bell crank lever 63 which is pivoted to the floor or frame of Athe machine. The remaining arm of the bell crank 63 is pivotally connected with one end of a transverse rod 64 which extending toward t-he opposite side of the machine, is pivotally connected with the upper arm of a pivoted bell crank leverL 65, the remaining arni of which is pivotally connected with the rod 61. The forward end of the rod 62 is in a like manner pivotally connected with one arm of4 a pivoted bell crank 66, the remaining arm of which is pivotally connected with the rod 64.
The bearing member 46 in which the rod 45 is journaled, as Vheretofore described is provided on one side with a short socketarm or bearing projection 46a (see Fig. 6) in which is mounted a rotatable bearing body 67, the latter' having a downwardly extending. arm 67a. Titti the lower end of the arm 67a is connected a forwardly extending bar 67", the forward end of said bar being connected with a pivoted upright lever 67 c.
In the bearing body 67 is eccent-rically mounted one end of a horizontal shaft 68, the outer portion of the latter being supported in -a journal box 69 on one of the frame members l. On its outer end the shaft- 68 carries a belt wheel 70 which is connected with a small belt wheel 71 carried on the fan shaft 30 through the medium of a belt 72.' Upon the shaft 68 is carried a small sprocket wheel 73 which through the medium of a chain belt 74 is connected with the sprocket wheel' 38' on the shaft 36. Keyed to slide on the shaft 68 and carried adjacent to the bearing member 67 is a fric.- tion wheel 75, the periphery of the latter adapted to be brought into contact with the forward face of the friction wheel 47. The wheel 75 is provided on one side with a projectin hub 75l with which is pivotally connecte the forwardly extending arm 76'L of a bell crank lever 76. This. lever is pivoted at the junction of its arms and has its remaining and shorter arm 76b pivotally connected with a rod 77, the rear end of which .upper portion of the lever is provided with the usual or any desirable construction of spring actuated pawl 82 which is ada ted to engage the teeth -of the upper side o the segment 79.
Leading outward from the fan casing and extending rearwardly therefrom is a pipe 83, said pipe leading into aA hopper 84 which is provided with a conical lower portion 84 which communicates with an opening in the upper side of the receptacle 9. Upon the rear axle or shaft 8 of the machine on the inner side of each of the ground wheels 7, is carried a sprocket wheel 85 and these sprocket wheels are connected by chain belts 86 wit-h the sprocket wheels 49 which are on the ends of the shaft 48.
Journaled in oppositely located downwardly extending brackets 87 which are carried by the forward portions of the frame bars 2 in rear of the front ground wheels 5 are the end spindles 88 of a transverse reel 89. This reel carries near one end a worm wheel 9() with which gears a worm 91 carried on the lower and forward end of a downwardly inclined steering shaft 92 the upper and rear end of which is provided with a suitable steering wheel 93 the latter being arranged in front` of a seat- 94 which is supported from the floor of the machine. About the reel 89 is wound the central portion of a chain 95 the ends of which are connected with the front pivoted axle 6.
96 represents a scraper bar of the usual form, which is adapted to bear on the ground beneath the forward pc rtion of the machine at anangle with the direction of the length thereof, this scraper bar being connected with the front bolster of the machine in the usualmanner by chains- 97.
In operation, it will be understood that the move-ment of the machine over a street to be. swept, as well as the other moving parts of our machine, is imparted by the rotation of the motor shaft 42. The rotation of this shaft and the shaft 45 which is connected therewith, imparts a rotary movement to the disk .or friction wheel 47 which when in contact with the friction wheel or ico 35 said segment body, is moved in the direction 47, krotary motion will be imparted to the shaft 68 and its belt wheel 70, the belt 72 transmitting lmotion therefrom to the fan shaft 30. The rotation of the shaft 68 also results through the chain belt connection 74 with the shaft 36, in a rotation of the sprocket wheel 37 and through' the chain belt 39 rotary motion is imparted to the sweeper body 18, the elevator carrying shaft 31 and the conveyer 28. It is obvious that the dirt which is removed from the street by the rotation of the sweeper body 18, will be delivered into the elevator casing 25 andl carried by the elevator upward into the conveyer casing 25HL where by rotation of the conveyer, the dirt will be carried to the fan casing 29 from which it will be blown outward by the fan' through the pipe 83 into the hopper 84 and thence deposited in the receptacle 9. Assuming that the friction wheels 75 and 54 are not in contact with the friction wheel .47, the method of effecting these contacts and thereby throwing the several parts into gear, is substantially as follows: By grasping the lever 78 and swinging the segment body 79 on its trunnions 80, the rod 64 which is pivotally connected with of its length toward one side of the machine,
with the result that through the swinging ofthe bell cranks 63, 66 and 65 the rods 60, 62 and 61 are drawn forward and the forward pull thus imparted to the arms 53 of the eccentric bearing 'bodies 52, produces a partial rotation of said bearing bodies, which results in the shaft 48 moving forward until the friction disk r54 is in proper frictionalcontact with the disk 47. It` will also be understood that by a proper swinging movement of the lever 67c and a corresponding movement of the bar 67h, the eccentric bearing 67 will be moved in the socket member 46a of the bearing body 46 until the shaft 68 is moved rearwardly suilicien'tly to result in a frictional contact of the wheel 75 with the wheel 47, thus imparting rotary motion to said shaft 68. In order to facilitate the proper lateral movement of the shaft 68, the
outer bearing 69 of said shaft, is preferably pivoted to the frame bar 1 which supports said bearing. In order to increase or decrease the speed of the shaft 68, the lever 78 is moved in the arc of a circle, resulting through the connection of said leverwith the bell crank 76 and the connection of one arm thereof, with the hub of the wheel 75, in
moving said hub and wheel outward or inward on. the shaft 68, thus changing the points of contact of the wheels 75 and 47. A similar movement is imparted to the wheel 54 in order to increase or decrease the speed v the dirt thus deposlted ma be discharged or dumped fromrthe receptac e by releasing the pawl 13 and permitting a reversed rotation of the shaft 12, thus lowering the bottom of ythe receptacle.
From the construction and operation which we have described, it will be understood that a' sweeping machine is provided, which` will not only sweep the dirt from a street or pavement, but that in combination with such vsweepingv means, we have provided means for conveying the dirt thus swept from the street to a receptacle at the `rear of the machine from which it can be discharged at desired intervals. It lwill readily be seen that by the employment o f a rapidly rotating fan within the fan casing, such dust as may be created in the sweeping operation will be drawn into the fan casing and t ence through the pipe 83 to the receptacle, thus providing for the sweeping of a street without the creation of undesirable dust clouds. It will also be observed that simple and effective means are provided for throwing the operating parts of the machine, in and out of gear and for increasing and decreasing the speeds of said operating parts.
From the foregoing description, it will be seen vthat simple and efficient means are herein provided for accomplishing the ob- `jects of the invention, but while the elements shown and described are well adapted to serve thepurposes for which they are intended, it is to be understood that the invention is not limited to the precise construction set forth, but includes within its purview such changes fas may be made within the scope of the appended claim.
What we claim, is-
In a machine of the character described, the combination with a truck body comprising a framework and ground wheels, a sweeper body journaled in the frame and a motor carried by said frame, of a dirt elevator supported infront of said sweeping body, a fan casing and fan therein, a rotary .conveyor leading from said elevator to said fan casing, a dirt receptacle carried by the machine frame, pipe connections between In testimony whereof We aiix our signasaid dirt receptacle and fan casing, means tures in presence of two Witnesses.
for imparting motion from the motor shaft HENRY R. SCHEIDLER. to the sweeping body the elevator the conl veyer, the fan and the ground Wheels of the "OSCAR A' SCHEIDLER' machine and independent means for chang- Witnesses:
ing the speed of the ground Wheels and the DANIEL E. CAMP,
speed of the fan. RoBBINs HUNTER.