Transverse pavement texturing apparatus

Claim 2

In apparatus for texturing roadway surfaces: a vehicle having a chassis and roadway-engaging wheels for moving said vehicle longitudinally along the roadway; elongate cutter means; means for supporting said cutter means from said chassis for movement of said cutter means transversely of said chassis and the direction of longitudinal movement of said vehicle along the roadway to produce a cutting action by said cutter means on the roadway surface; said supporting means including means for selectively raising or lowering said cutter means with respect to said chassis and roadway surface to selectively disengage or engage said cutter means with the roadway surface, said raising or lowering means elevating said chassis with respect to the roadway surface after engagement of said cutter means with the roadway surface to impose a portion of the weight of said chassis upon said cutter means.

Claim 3

In apparatus as defined in claim 1; and means for elevating said cutter means from the roadway at the end of its transverse movement to permit longitudinal movement of said vehicle along the roadway.

Claim 4

In apparatus as defined in claim 1; means for automatically elevating said cutter means from the roadway at the end of its transverse movement to permit longitudinal movement of said vehicle along the roadway; and means preventing movement of said vehicle along the roadway when the cutter means is in engagement with the roadway.

Claim 5

In apparatus as defined in claim 1; means for elevating said cutter means from the roadway at the end of its transverse movement to permit movement of said vehicle along the roadway; means for moving said vehicle longitudinally along the roadway after elevation of said cutter means from the roadway; and means for preventing operation of said vehicle moving means unless said cutter means has been elevated from the roadway.

Claim 6

In apparatus as defined in claim 1; and means for elevating said cutter means from the roadway to permit movement of said vehicle along the roadway.

Claim 7

In apparatus as defined in claim 1; and depth of cut control means engageable with the roadway surface for limiting the depth of penetration of said cutter means in the roadway.

Claim 8

In apparatus as defined in claim 1; depth of cut control means engageable with the roadway surface for limiting the depth of penetration of said cutter means in the roadway; and means for adjusting said depth of cut control means to vary the depth of penetration of said cutter means in the roadway.

Claim 9

In apparatus as defined in claim 1; and roller means on said cutter means engageable with the roadway surface for limiting the depth of penetration of said cutter means of in the roadway.

Claim 10

In apparatus as defined in claim 1; roller means on said cutter means engageable with the roadway surface for limiting the depth of penetration of said cutter means in the roadway; and means for adjusting the axis of said roller means relative to the axis of said cutter means to change the depth of penetration of said cutter means in the roadway.

Claim 11

In apparatus for forming grooves and the like in roadway surfaces: a vehicle having a chassis and roadway-engaging wheels for moving said vehicle longitudinally along the roadway; track means carried by and extending transversely of said chassis; cutter means movably mounted on said track means for movement therealong transversely of said chassis and the direction of longitudinal movement of said vehicle along the roadway to cut adjacent grooves in the roadway surface; means for selectively raising or lowering said track means and cutter means with respect to said chassis and roadway surface to selectively disengage or engage said cutter means with the roadway surface, said raising or lowering means elevating said chassis with respect to said track means and cutter means after engagement of said cutter means with the roadway surface to impose a portion of the weight of said vehicle upon said cutter means.

Claim 12

In apparatus for forming grooves and the like in roadway surfaces: a vehicle having a chassis and roadway-engaging wheels for moving said vehicle longitudinally along the roadway; track means carried by and extending transversely of said chassis; cutter means movably mounted on said track means for movement therealong transversely of said chassis and the direction of longitudinal movement of said vehicle along the roadway to cut adjacent grooves in the roadway surface; means for selectively raising or lowering said track means and cutter means with respect to said chassis and roadway surface to selectively disengage or engage said cutter means with the roadway surface, said raising or lowering means elevating said chassis with respect to said track means and cutter means after engagement of said cutter means with the roadway surface to impose a portion of the weight of said vehicle upon said cutter means.

Claim 13

In apparatus as defined in claim 10; and means secured to the end portions of said track means and engageable with the roadway surface to support said track means on the roadway surface independently of said vehicle.

Claim 14

In apparatus as defined in claim 10; said track means comprising a central section carried by said chassis, and end sections releasably secured thereto for movement inwardly of the vehicle to reduce the overall width of the apparatus for transportation along the roadway.

Claim 15

In apparatus as defined in claim 10; said track means comprising a central section carried by said chassis, and end sections pivotally connected to said central section for upward swinging and disposition inwardly of the vehicle to reduce the overall width of the apparatus for transportation along the roadway.

Claim 16

In apparatus as defined in claim 10; means for preventing movement of said vehicle along the roadway when said cutter means is in engagement with the roadway.

Claim 17

In apparatus as defined in claim 10; means for moving said vehicle along the roadway after elevation of said cutter means from the roadway; and means for preventing operation of said vehicle moving means unless said cutter means has been elevated from the roadway.

Claim 18

In apparatus as defined in claim 10; said track means including an upwardly inclined portion at the end thereof, whereby said cutter means rides upwardly of said inclined portion and out of engagement from the roadway.

Claim 19

In apparatus for forming grooves and the like in roadway surfaces: a vehicle having a chassis and roadway engaging wheels for moving said vehicle longitudinally along the roadway; a supporting structure carried by said chassis comprising spaced parallel tracks extending transversely of said chassis and the direction of longitudinal movement of said vehicle along the roadway; cutter means movable along said tracks in engagement with the roadway surface to cut adjacent transverse grooves therein; means connected to said supporting structure and chassis for selectively raising or lowering said tracks and cutter means with respect to said chassis and roadway surface to selectively disengage or engage said cutter means with the roadway surface, said raising or lowering means elevating said chassis with respect to said tracks and cutter means after engagement of said cutter means with the roadway surface to impose a portion of the weight of said vehicle on said cutter means.

Claim 20

In apparatus for forming grooves and the like in roadway surfaces: a vehicle having a chassis and roadway engaging wheels for moving said vehicle longitudinally along the roadway; a supporting structure carried by said chassis comprising spaced parallel tracks extending transversely of said chassis and the direction of longitudinal movement of said vehicle along the roadway; cutter means movable along said tracks in engagement with the roadway surface to cut adjacent transverse grooves therein; means connected to said supporting structure and chassis for selectively raising or lowering said tracks and cutter means with respect to said chassis and roadway surface to selectively disengage or engage said cutter means with the roadway surface, said raising or lowering means elevating said chassis with respect to said tracks and cutter means after engagement of said cutter means with the roadway surface to impose a portion of the weight of said vehicle on said cutter means.

Claim 21

In apparatus as defined in claim 17; racks secured to said tracks; said cutter means comprising pinions meshing with said racks, and means for rotating said pinions to propel said cutter means along said tracks transversely of said vehicle; said cutter means further including an elongate rotatable cutter device, and means for rotating said cutter device during its travel along said tracks.

Claim 22

In apparatus as defined in claim 17; racks secured to said tracks; said cutter means comprising pinions meshing with said racks, and means for rotating said pinions to propel said cutter means along said tracks transVersely of said vehicle; said cutter means further including an elongate rotatable cutter device, and means for rotating said cutter device during its travel along said tracks; and means engageable with the roadway surface for determining the depth of penetration of said cutter device into the roadway surface.

Claim 23

In apparatus as defined in claim 17 racks secured to said tracks; said cutter means including pinions meshing with said racks, and means for rotating said pinions to propel said cutter means along said tracks transversely of said vehicle; said cutter means further including an elongate rotatable cutter device, and means for rotating said cutter device during its travel along said tracks; said raising and lowering means including cylinder and piston means connected to said supporting structure and chassis for selectively raising or lowering said supporting structure and cutter means with respect to said chassis and roadway surface.

Claim 24

In apparatus as defined in claim 20, supporting means secured to the end portions of said supporting structure and engageable with the roadway surface to support said supporting structure on the roadway surface.

Claim 25

In apparatus as defined in claim 20, said cylinder and piston means comprising means for imposing the portion of the weight of said vehicle of on said cutter device.

Claim 26

In apparatus as defined in claim 20, means preventing movement of said vehicle along the roadway when the cutter device is in engagement with the roadway.

Claim 27

In apparatus as defined in claim 20, means for moving said vehicle along the roadway after elevation of said cutter device from the roadway; and means for preventing operation of said vehicle moving means unless said cutter device has been elevated from the roadway.

Claim 28

In apparatus for forming grooves and the like in roadway surfaces: a vehicle movable along the roadway; a supporting structure carried by the vehicle comprising spaced parallel tracks extending transversely of the vehicle; and cutter means supported by and movable along said tracks transversely of the vehicle and in engagement with the roadway surface to cut adjacent transverse grooves therein; racks secured to said tracks; said cutter means including pinions meshing with said racks, and means for rotating said pinions to propel said cutter means along said tracks transversely of said vehicle; said cutter means further including an elongate rotatable cutter device, and means for rotating said cutter device during its travel along said tracks; and cylinder and piston means connected to said supporting structure and vehicle for selectively raising or lowering said supporting structure and cutter means with respect to the vehicle and roadway surface; additional cylinder and piston means connected to the end portions of said supporting structure; roadway-engaging wheels connected to said additional cylinder and piston means to elevate said supporting structure and cutter means in response to fluid under pressure in said additional cylinder and piston means.

Claim 29

In apparatus for forming grooves and the like in roadway surfaces: a vehicle movable along the roadway; a supporting structure carried by the vehicle comprising spaced parallel tracks extending transversely of the vehicle; and cutter means supported by and movable along said tracks transversely of the vehicle and in engagement with the roadway surface to cut adjacent transverse grooves therein; racks secured to said tracks; said cutter means including pinions meshing with said racks, and means for rotating said pinions to propel said cutter means along said tracks transversely of said vehicle; said cutter means further including an elongate rotatable cutter device, and means for rotating said cutter device during its travel along said tracks; and cylinder and piston means connected to said supporting structure and vehicle for selectively raising or lowering said supporting structure and cutter means with respect to the vehicle and roadway surface; additional cylinder and piston means connected to the end portions of said supporting structure; roadway-engaging wheels connected to said additional cylinder and piston means to elevate said supporting structure and cutter means in response to fluid under pressure in said additional cylinder and piston means.

Claim 30

In apparatus as defined in claim 25, supporting means secured to the end portions of said supporting structure and engageable with the roadway surface to support said supporting structure on the roadway surface.

Claim 31

In apparatus as defined in claim 26, said supporting structure comprising a central section, and end sections pivotally connected to said central section for upward swinging and disposition inwardly of the vehicle to reduce the overall width of the apparatus for transportation along the roadway.

Claim 32

In apparatus as defined in claim 26, means for moving said vehicle along the roadway after elevation of said cutter device from the roadway; and ma means for preventing operation of said vehicle moving means unless said cutter device has been elevated from the roadway.

Claim 33

In apparatus for forming grooves and the like in roadway surfaces: a vehicle movable along the roadway; a supporting structure carried by and movabLe with respect to the vehicle comprising spaced parallel tracks extending transversely of the vehicle; cutter means supported by and movable along said tracks transversely of the vehicle and in engagement with the roadway surface to cut adjacent transverse grooves therein; cylinder and piston means connected to the end portions of said supporting structure; and roadway-engaging wheels connected to said cylinder and piston means to elevate said supporting structure and cutter means in response to fluid under pressure in said cylinder and piston means.

Claim 34

In apparatus for forming grooves and the like in roadway surfaces: a vehicle movable along the roadway; a supporting structure carried by and movabLe with respect to the vehicle comprising spaced parallel tracks extending transversely of the vehicle; cutter means supported by and movable along said tracks transversely of the vehicle and in engagement with the roadway surface to cut adjacent transverse grooves therein; cylinder and piston means connected to the end portions of said supporting structure; and roadway-engaging wheels connected to said cylinder and piston means to elevate said supporting structure and cutter means in response to fluid under pressure in said cylinder and piston means.

Claim 35

In apparatus as defined in claim 29, supporting means secured to the end portions of said supporting structure and engageable with the roadway surface to support said supporting structure on the roadway surface.

Claim 36

In apparatus as defined in claim 30, said supporting structure comprising a central section, and end sections pivotally connected to said central section for upward swinging and disposition inwardly of the vehicle to reduce the overall width of the apparatus for transportation along the roadway.

Claim 37

In apparatus as defined in claim 30, means for moving said vehicle along the roadway after elevation of said cutter means from the roadway; and means for preventing operation of said vehicle moving means unless said cutter means has been elevated from the roadway.