US3298A - Improvement in machines for sweeping streets - Google Patents

Description

UNITED STATES PATENT OFFICEo THOMAS MUSSEY, NEW LONDON, CONNECTICUT.

IMPROVEMENT IN MACH-INES FOR swEEPlNc STREETS, aw.

Specification forming part of Letters Patent No. 3,298, dated October 12, 1843.

or Tender Properly Adapted to the Machine;

and I do hereby declare that the following is a full, clear, and exact description of the con-` struction and operation of the same, reference being had to the annexed drawings, making a part of this specification, in which- Figure l is a perspective view; Fig. 2, Va transverse elevation; Fig. 3, a longitudinal elevation, &c.

This machine is necessarily connected with a cart or tender properly adapted to it, as

mentioned above, for the purpose of drawing it along, putting its machineryin proper motion, receiving the dirt, &.c. To effect this the two are connected together in the following manner, viz: A strong eyebolt, No., 4, letter A, the eye one and a quarter inch in diameter, is p inserted in the center of the hinder part of the axle of the cart and made to receive a stout iron hook,No. 4, a, attached tothe forward end of the neap or tongue, No. 3, B, of the machine, so that when united they movewith all the freedom of a wagon. To secure it in its place a rod, which I call the securing-rod, No. 4, B, passes under the body of the cart directly behind the axle and parallel with it, and secured to the under side of the cart-body by boxes or clamps, No. 4, b b b, near the ends of the rod, so that the key or loop end, No. 4, C, of the rod may hang di,- rectly over the eye of the bolt. By` this means the hook on the neap is secured in the eye. chine turn the handle or end of the rod on the side of the cart from the right hand to the;I left or from a horizontal to4 a perpendicular position, which brings the key or loop at the other end into a horizontal position and permits the hook on the end of the neap of the machine to beraised from the eyebolt and the cart to be detached from 'the machine,

To the under side of the cart which I have lately made are two pieces of wood, No. 4, c c,

Now to detach the cart from the ma` -three feet apart. They are faced with iron on the sides next to each other to resist the wear of the ends of the neap and are termed directors, because they direct the neap to theeyebolt. Their use is this: Vhen the neap of the machine is raised up to the under side of the cart-body anywhere within eighteen inches of the middle, and the cart backed toward the machine, the neap will be forced to the eyebolt, when the hook may be dropped into the eyebolt and secured to the cart.

The machine is composed of two principal parts: first, the carriage-wheels,No. 3, A, on which it rests and which are about four feet in diameter7 an iron axle (adapted to the width ot' the machine) and neap, No. 3, B, the forward frame work attached, No. 3, b h, a part of which overhangs the cart-body, No. 3, C, to convey the dirt :into it, and sustains the chain cog-pulleys, No.3, c d, chains, No. 3, E E, and rollers, No. 4, D D, which give direction and motion to the revolving apron., Nos.l 2 and 3, J, that conveys the dirt from the brushes or brooms, Nos. 2 and 3, I, into the cart. The other part' is the brush-frame, No. 5, A A, which supports the hinder parts of the dustcase, No. 4, E, and revolving apron with the roller, on which it turns, the cylindrical apron, No. 5, B, its end pieces, No. 5, aa, sliding casters, No. 5, b, and adjustinglevers,.No. 5, c c, the Wheels, No. 5, F, that convey motion to the brushes, and four upright posts, No. 5, CZ CZ d d.

Particular description of the manner in which the machine is made and moves, viz: On the inner face of the naves or hubs of the carriage-wheels, No.4, F, on which the machine rests, and which face is an extension of the boxes of the wheels in the form of a ilange and made of strong hard metal, are holes orcavities, No.4, d, eight or ten in number,- of an inch or more deep, sufficiently large to receive the lends of a gearing-fork, No. 4, G, which are an inch or more in. diameter. These holes or cavities are arranged in a circle around the axle and about two inches from it. The sides of the holes or cavities opposite the motion of the wheels as they move forward are at right angles to the face of the wheels, so that when the forks are thrust into the holes or cavities they are locked to the hubs, and by the forward motion of the Wheels carry the machinery. The opposite sides are inclined planes to the faces. Next to the inner face of the hubs of the carriage-wheels turned with a crank.

and on the same axle are large chain cogwheels, No. 4, H, onezon each side, with two rows of cogs on each for cog-chains. Through each of these wheels two holes, No. 4, c e, are made to receive the prongs of the gearingforks and permit them to enter the holes or cavities in the hubs of the main or carriage wheels. Next to these wheels on the axle are two plates having necks and rims or iianges fitted to the axle with a space on the axle for them to move to and from the wheels an inch or more. Into these plates are secured two steel bolts, each of which passes through the wheels and steps into the holes or cavities above described. These plates and their bolts are called gearing-forks, No. 4, G, for when they are thrust home and the carriagewheels move along they carry round the cogwheels and with them all the machinery; but when these are withdrawn so as to be clear from the carriage-wheels the machinery will cease to operate, although the machine may be moved in any direction. When the machine retrogrades, the forks are thrust out of the holes or cavities by the inclined planes and are pushed into the next by the springs, and so continually while moving backward; also, when one wheel moves faster than the other by moving on the outer side of a circle it carries all the machinery, and by the inclined planes of the holes or cavities in the opposite wheel permits the fork to go forward with the other machinery, which gives'to the machine a .self-adjusting power. I have also contemplated another mode of effecting the same thing-viz., by fixing face-ratchets between the hubs of the wheels and the large chain cog-wheels, No. 4, H. A face-ratchet has its teeth resembling saw-teeth, but very broad on the face side of the wheel instead of the rim. They interlock each other, so that when the main or carriage wheels advance inserted eyebolts, No. 4, f, near the gearingforks, which receive hooks, No. 4, g, the opposite ends of which are attached to upright arms of two round bars of iron termed ungearing-rollers, No. 4, J, situated toward the middle and running parallel with the machine. These ungearing-rollers are operated on by a windlass having a ratchet-wheel and pawl, Nos. 3 and 5, G, and where power is required a cog-wheel and pinion are added and are These rollers are connected to it by two ropes or chains, one end of `which is made fast to the horizontal arms,

aces

Nos. 4 and 5, h, and passing' over pulleys, No. 5, D D, ccmes down on the front side of the windlass, so that by turning the windlass round it operates to bring down the forward end of the brush-frame, and at the same time raises the horizontal arms of the ungearingrollers and draws the upright arms, Nos. 4 and 5,1' t', in a direction from the wheels,and by means of the hooks, which connect them with the springs, draws the gearing-forks out of the ,holes or cavities, so that the carriagewheels can be moved in any way without operating on the machinery. The same operation raises, the brush and its appendages about eight inches from the ground, allowing the cart and machine to be moved about like a wagon. piece of wood secured to the forward end of the brush-frame by a strong iron bolt, No. 5, d, in its center, so that the pulleys may adjust themselves to any inequality in the length of the ropes, and thereby insure the ungearing of both sides of the machine at the same time. The forward frame-work, No. 3, b b, which is permanently'attached to the axle, extends forward of it about four feet. It then rises perpendicularly about four feet, and then extends forward horizontally about five, corresponding to the length of the neap.

cog-rollers, No. 4, D, which carry the revolv.

ing apron, Nos. 2 and 3, In the outside of the upright portion of the frame, and near the top on each side, are double cog chain-pulleys, N o. 3, d, to accelerate the motion of the revolving apron. The other part I call the brus-hframe, because itsustains the brushes and gives them freedom of motion, whether it be an up-and-down or rocking motion, for when the street has ridges extending directly across it the motion of the brush-frame is up and down; but when one wheel of the machine rises while the other is depressed the brush-frame, with its iron plates, No. 5, k k, by resting on the balancerocker, keeps parallel with the street.

The brush-frame is oblong, being about iive feet wide and ten feet long. The sides where they rest on the rocker are about seven inches deep by two inches thick. This frame has a box across the fore end, into which weights may be put to help to equalize the weight of the brushes and other parts connected with them, which rest on the hinder part of the frame. The balance-rocker, No. 4, K, is made of iron, about one inch by four in the middle, and tapering toward the ends. Its length corresponds with the width of the brush-frame. It hangs upon a strong iron bolt projecting about three inches from the hind part of the axle at its center. This gives freedom to the brushes, as above described. To furnish the principal balance for the brushes, and at the same time to lighten the forward part' of the frame-work which hangs over thc cart, and prevent it from bear- The pulleys, No. 5, D D, play in a ing too heavily on the neap, a heavy weight No. 5, C C, is hung by two strong ropes .or chains secured to its ends. These ropes or chains, No. 5, E, pass over two pulleys, No.5,

I-I, (which pulleys are sustained by strong iron supports, No. 5, j, madefast tothe under side of the axle two or three inches from its shoulders and near the wheels) and pass forward totwo pulleys, No. 5, I, situated direct ly under the forward end of the brush-frame, then passing under the pulleys and through the lower frame-work, No. 5, J, of themachine up to the forward end of the brush-traine No.` 5, K, where they are made fast. These weights are of iron or lead; but lead would he preferable, as it occupies less space and is always worth about what it costs. The effect of this combination is twofold: lVhtle it serves to ball-V The brushes, Nos. 2 and 3, I, are suflicientlylong to sweep a strip about tive feet wide, be`- ing from fourteen to twenty in number and arranged circularly around an arbor and secured at each end by screwbolts passing through sheet-iron end pieces, No. 3, I-I, resembling drum-heads. These end pieces are pierced in the centers by the arbor on which they and .the brushes revolve. They are about forty-inches in diameter. In these end pieces are slots cut about eight inches long and half an inch wide, ranging from the center to the periphery and corresponding with the number of brushes. Through these slots screws pass into the ends of the brushes and fasten them any distance from the center which the slots will allow. ,The use of these slots is to permit the brushes to be slid out as the ends wear off, thereby saving the expense of renewing-them until they are worn out..

The brushes are made of straight-bered wood of the hardest and toughest kind (or any other suitable material) sawed or slitted into slips of aboutsixteen inches long, of two `to three inches wide, and from one to three sixteenths of an inch thick. These again are sawed or slitted into slips of about a foot long and an eighth of an inch wide, four inches at one end being left whole the better. to secure them to the pieces by which they are' which are moved by the large chain cogwheels, No. 4, H, on the axle described inthe tirst -part of this specification, and they derive their motion from the main or carriage wheels of the machine as therein described. The largest chain cog-wheels, No.4, H, of the machine having two rows of cogs on each carry by their chains the brush in the rear and the revolving apron in the front. Partly under the brushes, but principally forward of them, is a cylindrical apron, No. 5, l, made of iron and attached to the brush-frame, No. 5,A A, by two end pieces of wood, No. 5, d d, nearly a quarter of a circle each. To these are also attached on the outside Of the pieces sliding casters, No. 5, b, of the hardest metal and made to slide easily over the ground orpavement, and by levers and adjusting-screws, No. 5, c c, made to depress or elevate the brush-frame and `give the brushes more or less power in their work. The cylindrical apron is about one-sixth of the circle made by the brushes in revolving on their arbor.

.It serves to hold the dirt to the brushes until it is raised and thrown on the revolving apron. The revolving apron, Nos. 2 and 3, I, which of course is endless and is made of duck or yanyother pliable and durable material, re-

volves on rollers, one of which is placed under the ltp of the cylindrical apron to support the revolving apron while it receives the dirt thrown on it by the brushes. The next two rollers are placed at the angle where the apron passes from an elevating to a horizontal motion. The fourth roller, No.4, D, is placed at the eXtreme forward end of the apron and gives motion to it. This is effected by two or more cogs, No. 4, jj, at each end of the roller, which lock into cross-pieces, which extend across the apron and project vover over it on each side about an inch. The ends of these pieces are iron and rest upon supports at the sides attached to the dust-case to prevent the apron from sagging. These cross-pieces are about nine inches or less apart, or nearly equal to half or quarter the circumference ot' the rollers, so that each pair of cogs take hold of a cross-piece, carry it half round, when the next pair take the next. and so keeping the apron in motion while the machinery moves. On each side of the apron are sewed strong cords about three-fourths of an inch in diameter. These serve to keep the dirt on the apron, to which they give firmness, the iron ends of the cross-pieces being secured firmly t0 them. I have also contemplated using cog-chains secured to the sides of the apron to carry it forward, which will answer the same and perhaps betterpurpose as the cogs on the ends of the roller.

Two other modes can be adopted to carry forward the apron besides those mentionedviz., by wheels only or by pieces secured to and ranging across the inner side of the apron and made to match and. lock with similar pieces ranging longitudinally on the moving roller. Directly over the apron is a dust-case, No. 4, E, tight at top and sides, and so fitted to the apron as to prevent the dust from escaping While the machine is in motion. On the lower and inside of the dust-case, directly over the sides of the apron, are fringes of Manila hemp, under Which the cross-pieces pass freely While the dust and gravel are kept from the machinery and from annoying people in the streets. On the inside of the dustcase and about a foot from its lower part is a rod, N o. 4, 7c, ranging parallel with the brushes and placed so near them that they strike the rod as they revolve, which jars off the dirt that adheres to them and prevents its being carried back on the brushes.

The whole machine, the cart excepted, is covered in the manner of a close carriage, the covering being` supported by a light frame resting on the upright posts, No. 3, e e e e' e e, and extending to the ground.

What I claim as my invention, and wish to secure by Letters Patent, is-

l. The securing-rod and the directors, in combination with the cart, the eyebolt in the axle 0f the cart, and the hook 0n the neap of the machine to unite and separate the maT chine and cart with the least possible delay, and to secure them fast together when they are. united, as described, the cart giving mo` 4 was tion to the machine and receiving the dirt as fast as the machine collects it.

2. In combination, the peculiar manner of constructing the brushes, (as set forth in the specification,) with the sheet-iron end pieces, slots, and screw-bolts attached, by Which combination the brushes are easily extended until they are Worn out.

3. The combination of the cylindrical apron, the end pieces of Wood attached With the sliding casters, the adjusting levers and screws, the brush-frame With its iron plates resting on the balance-rocker, also the balance-rocker itself, which combination has the effect of sustaining the brushes, holding the dirt to them, and adjusting them to the inequalities of the ground.

4. The ungearing-rollers, in combinationwith the springs, clutch-boxes on the hubs, the Windlass, and the ropes or chains connecting the ungearing-rollers with the forward end of the brush-frame, by which combination the machine is put out of gear and the brush raised, and in this manner rendered capable of being moved about like a Wagon.

T. MUSSEY. Witnesses:

N. FosDIcK, A. E. BROWN.

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