US1381314A - Assxghok x t to the btjckeyj teactioij ditchbe - Google Patents

Description

L. A. KRUPP.

CONCRETE BREAKING MACHSNE.

APPLICATION FILED APR.19. 1920.

1 ,38 1 3 1 Patented June 14, 1921.

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L A- KRU'PP.

CONCRETE BREAKING MACHINE.

APPLICATION man APR. 19. 1920. 1,381 Patented June 14, 1921.

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Immwa L "A. KRUPP.

CONCRETE BREAKING MACHINE.

APPLICATION FILED APR. 19, 192.0.

Patented June 14, 1921- 3 SHEETS-SHEET 3- sierra star LEO A. 31112301 FINDLAY, 02110, 'essienoiaro 'T'HE BIVFCKEYEY c nnamon meme,

COMPANY, or rrnntar, 01-110, A oonronnr on or 01-110..

i CONC ETE-BREAKING- iviAcnrnn.

It '0 all to ham it may concern:

Be it known that I, LE0 A. KRUrP, a citizen of the United States, and a resident of Findlay, in the county of Hancock and State of Ohio, made an Invention Appeie taming to Concrete-Breaking Machines; and.

I do hereby oeclare the following to be a full, clear, and exact description'of the invention, such as will enable others skilled in the art to which :it appertains' to make and use the same, reference being had to'the accompanying drawings, and to the characters of-reference marked thereon, which form a part of this specification. i

This invention relates t-o'--n1achi1ies'forv breaking concrete or the like, and is particularly intended for use in breaking up concrete pavements preparatory to repairing, trench work, or other purposes. e

The object of my invention is the provision of a portable machine of the class described,having a drop hammer or weight adjustable to strike a light or heavy blow and also adjustable crosswise of the machine, or of the path of travel, to break'a path of concrete of any width up to the limit 'ofthe machine, thereby adapting it for use in ing and trench work is diflicult and expensive. equally well for tamplng purposes.

Further objects and advantages of the V 21 of any suitable construction.

inve'ntion'will be apparent from the following detailed description thereof.

While the invention, in its broader aspect,

is capable of embodiment in numerous forms, a preferred embodiment thereof-is illustrated in the accompanying drawings,

in which,-

Figure 1 is a side elevation of a machine 2, 2 of the'caterpillar'type, and in front by a pair of steering wheels 8, 3,in any suitable Specification of Letters Patent.

The machine may also be used transversely of'the frame 1 between said 11pdesignates Patented eiiineilet, 1%21.

Application filed. Apr'il 19, 1920. Serial amnesia. I

manner. An engine a is carried by the frame at its forward end and has driving connections 5- with' a'reverse gear transmissionmechanism inclosed within a case 6 andv controlled from a handle 7 (Fig. 1). through a shaft 8. The transmission neclianism has chain and sprocket wheel-connection witha;

shaft 10 journaled' transversely in the frame' Thexhigh speed" connection is through a clutch controlled pinion on the shaft 10 and a meshing gear 13 forming part of a differential gearing on the ack-shaft 11. 1X

clutch iron the Shaft 10 is movable into and g out of engagement with the pinion 1E2. 1

chainand sprocket wheel connection 15 between the shaft 10 and a jack-shaft 16 ,'and

the shaft 16 has a pinion 1'? in mesh with V the differential gear'13 and shiftable into and out of engagement therewith. The differential shaft 11 has driving chain and low speed drive is through a clutch controlled sprocket wheel connection 18 at each end with therespective caterpillarwheel 2. I

The frame 1 is provided at its rear end i I with a plurality of'transvei'sely spaced up-i rights 19 and at: the rear thereof at each end with an upright-20 all suitably tied together and forming a tower. This tower is braced with respect to tlieframe 1 and the members thereof rigidly connected by a frame-work" A'earriage orzguide frame' 22 in which ja weight 23 is vertically movable is suspended from the top portion of the tower between the two uprights 20 thereof and is shiftable rights. -The. carriage comprises four corner upright-s22 of angle-iron arranged in rectangular form and tiedtogether by top and bottom connecting members 24. Thecar riage is provided at its top with two sets of double'over-head track rollers 25, which travel on r'espective horizontal flang s ofiai track rail'26 connecting the uprights 20 at f the top of the tower, as best shown in'Figs.

321M143 v H v 7 Two cross-beams 27' are provided on the carriage 22at the inner side of its top portion in slightly vertically SPELCBChI'BliLtiOIi, and between theseateach end is mounted a roller 28 for bearing-forwardly"against a track rail 81 mounted on'the frame 1 cross wise thereof at the baseof the tower. It is thus evident that th guide frame 22is car ried by the tower and frame 1 for free movement transversely thereof throughout the width of the frame.

A squared shaft ends to hearing brackets wiprojectingrearward from the upper end portions of the tower uprights 20. The squared portion ex tends through a bush ngfic, which is ournaled at its ends in bearings 35 on the outer side of the upper end portion ofthe guide A 22, and also has a sprocket wheel 36 firiei to each endthereof without the carriag'e whereby the bushing and sprocket wheels are caused to turn with the shaft and are permitted to have movements longitudinallythereof with the carriage.

The carriage 22 is provided at the outer side of its lower end portion with a bearing bracket. 37 in which a cross shaft 38, carryir a sprocket-wheel 39 at each end thereo .without the guide frame, is journaled. A sprocket-chain 40 connects the sprocket wheels 86 and 39 at each side of the guide frame, with the inner-length of each chain parallel with and adjacent to the cross vertical center line of the carriage.

The chains providedat intervals with hooks 41 arranged in horizontally alined pairs on the two chains and associated with each hook a control arm projecting inwardly fromthe chain and a short arm movable across the to eject therefrom an article which elevated by the hook during the upward inner course of movement of the chain. I l

[lheweioht 23 is provided'at its upper end with a short cross-shaft 4 .3 to which the lower end of a rocker arm 44 is pivoted for VP the frame. lhis armis, provided at'its er end with a cross shaft 4-5. the ends of .hich pro ect into positionat the forward side of the upper length of each chain do to engaged by the hooks 41 in their upward movement wlth the chain so that the m ni and connected weight are elevated by tie chain. The 44: is weighted at its en angled trip lever i 2havingc Tical rocking movements longitudinally moved into engagement with respective trip members 41-? disposed in the path of movement thereof and will be moved to eject the V the medium of a fluid cushion connection. 32 extends crosswise of; the uppei." portion of the tower at the outer side of the carriage 22, being journaled' at its \e i. thereof. A clamping strip 51 V l} is disposed at the inner side of the cross-hm 50 and the two are drawn together 1n bin j relation to adjoining flanges of a pair or uprights 2.2 of. the carriage by a hen d-screw 52.

"ifhe squared shaft which drives the weight ele'vatin chains 4O, 40, has sprocket wheel 53 on one end, which is connected by a sprocket chain to a drive sprocketwhcel 55 on the outer end of the shaft 10 the sprocket wheel being'much smaller than thesproclrct wheel 53 to reduce the speed of 52; of the shaft 82 relative to the shaft in. The sprocket wheel is loose on the v 10 and is engaged with the shaft by a able clutch member 56, which is splined o the shaft and has its shifting movements controlled by any suitable means not shown.

The sleeve he upper end of the carriage 22 has a. ratchet wheel 57 fixed thereto to turn with the shaft 32 and this ratchet wheel is connected by a hook pawl 58 to prevents back tm'nin jf of the shaft 32 when the sprocket wheel 55 is disconnected from the shaft 10. This enables the weight to be held in elevated position by the elevating m rs during the moving of the machine fr a place to another.

The shifting V of the carriage 22 transversely of the machine is effected by the v movement of endless chain 59 which eX- tends crosswiseof the tower and is guided at its code around sprocket-wheels '60 carried by horizontal shafts 6%., which itl'Cj0H1- na-led lengthwiseof the frame in hearings provided on the uprights 19 and 20 at each side of the tower. The chain 559 has one length thereof connected to'the' carriage 22 through the medium of a U-boltand crossbar fixed to the inner side of the carriage frame. One ofthe' shafts 61 has sprocketwheel fixed to its forward end and con 'nected hya sprocket chain 64: to a smaller sprocket wheel 65 on a shaft 66 ournaled in the rear end portion ofthe frame 1 longitudinally thereof. The shaft carries two loose bevel gearsta' each'inmesh with a bevel-gear 68 on the forward'end :of the shaft 66 at opposite sides of'its axis. A

7 clutch member 69 is feathered on the shaftj tor efiects a forw ard or reverse running of 10 intermediate the gears 67, 67 and is shiftable into engagement with either to cause a driving of the shaft 66 in one direction or the other from the shaft 10 and to impart a corresponding movement of the carriage 22 crosswise of the frame.

The operation lows: I

The engine being in operation the operathe 'inachine by throwing the control lever 7 7 into one or the other'of its positions, and he also controls thespeed of movement of-the machine by throwing the clutch 7O on'the shaft lO-into engagement with thec'onnection 15 so'that the driving is through the shaft 16, pinion 17, differential gearing 13,

shaft 11 and connections l8 with the' cater-' pillar wheels. To obtain the high speed running of the machine, the clutch 14 on the shaft 10 is thrown into engagement with the pinion 12-thereby effecting a driving of the differential gearing; To effect a driving of the weight elevating chains 40 the clutch 56 on the shaft 10 is thrown into engagement with the sprocket wheel 55, which is connected to and drivesthe squared shaft 32' through the sprocket chain 54 and wheel 53. The continuous and constant speed movement which is imparted to the chains 40 successively brings pairs of hooks 41 thereon into picking-up engagement with the crossarm'or shaft 45 of the weight so that the weight is successively raised by each engaging pair of hooks until the trip levers 42 in association with the hooks move into triping connection with the weight 23.

ping engagement with the trip members 47 on the cross-bar50, fixed to the carriage frame 22 and are moved thereby to eject or swing the shaft 45 out of engagement with the hooks, which permits the weight to drop and break any concrete or other breakable means within its path of movement. After the cross-shaft 45 has passed from engagement with a pair of elevating hooks 21 it is [caused to swing back to its normal upright .of my machine is as folof the claims.

with thereby effecting a driving of the chain 59 through the shaft 66, chain 64, sprocket wheel-63and*shaft 61; This transverse ad-' justment of the carriage may be effectedf either-when the machine is at rest or in movement and during a 'drlving of the weight elevating chains 40V or when said chains areat rest. It is thus evident that I have provided. a machine for breaking-up concrete-pavements or the like which may be in the limits of length. r c

1' wish itunderstood thatmy invention is not limited to any specific construction, are

operated to brear a path'of any width with-- the machine and of, any

rangement or form of the parts, as it is capable of numerous modifications and changes, without 'Having thus' described a my invention,

departing from the v spirit, 3

what Iclaim as new-,xand desire'to secure 7 v byLettersflPatent, ,is,: -1

1; In a machine of-cthe class described, a

portable framehaving a tower at :one end, a carriage carried forflhorizontal adjustment by the tower and forming averticah' guide,"-a weight guided for movement by the carriage, an elevating chain associated with the carriage for movement therewith and having a length extending longitudinally of the carriage, said chain having a hook, means movably carried by'the weight and adapted to be engaged by the chain hook to cause an elevation of the, weight by the chain, and means automatically operable to releasev the hook engaging means from the hook to permit'a dropplng of the weight when elevated a predetermined height.

2. In a machine of the class described, a

portable frame having a tower,- a carriage carried for horizontal adjustment by the vtower, means operable to adjust the carriage, a weight guided for vertical movements by the carriage and having a trans-V versely movable member at its top, means operable to intermittently engage the weight member and elevate it, andmeans automatically operable to release the weightmember 7 from the elevating meanswhen at a predetermined height in its movement and to permit a dropping of the weight and member, said releasing means being adjustably' carried by the carriage to vary the heightat which the weight is released.

3. In a machine of the class described, a portable frame, a shaft therein, a carriage shiftable longitudinally of said shaft and forming a Vertical guide, a weight movable in said carriage, a catch arm pivoted to the upper end of the weight for vertical swinging movements and normally standing in one position of its movement, an elevating chain movable with the carriage and driven by said shaft and having an upward course of movement lengthwise of the carriage,

a movement of the catch arm with the chain to disengage the connection therebetween.

4. In a machine of the class described, a

portable frame, a horizontal shaft journaled therein, a carriage movable lengthwise of the shaft and forming a verticalguide, a weight movable in said guide and having catch means at its top, means operable by the shaft for periodically engaging the weight means and elevating the welght, and means automatically operable to disengage the elevating means and weight means at a predeterminedpoint in an elevation of the.

weight to permit a dropping ofthe latter.

5. In a machine of the class described, a portable frame,-a horizontal shaft mounted in said frame, means for driving said shaft, a carriage carried by the-frame for shifting movements lengthwise of the. shaft and forming a vertical guide, a weight movable in said guide, chains guided for movement lengthwise of the carriage and driven by the shaft and operable to intermittently en.-

gage and elevate the weight from lowered position, and means automatically operable to release the engagement between the chains and weight at a predetermined point in an elevation of the latter.

6.111 a machine of the classjdescribed, a portable frame having vertically spaced horizontal tracks, a carriage having guide means for traversing said tracks to support the carriage in the frame, a weight guided for vertical movements by said carriage, ashaft journaled in the frame longitudinally of the line of movement of the carriage in the frame, elevating means movable with the carriage andoperable by the shaft to intermittently engage and elevate the weight, means automatically operable torelease the weight from the elevating means at a-pre-- determined point in an elevation of the weight, a source of power on the frame, and means selectivelyoperable 'to connect the powerto said shaft to drive it and to connect the power to the carriage to' shift the same in the frame. a

*n testimony whereof I have hereunto signed my name to this specification.

' LEO A. KRUPP.

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