Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
199 words
In a machine for convoluting adhesive-coated uniting bands around groups of coaxial rod-shaped articles having a predetermined diameter, the combination of a rotary draping device; a rolling device; means for heating at least one of said devices; displacing means actuatable to move one of said devices between a first position in which said one device is nearer to the other of said devices and said devices define a gap having a width slightly less than said predetermined diameter, and a second position in which said one device is more distant from said other device; means for delivering groups of articles and non-convoluted uniting bands to said draping device in parallelism with the axis of said draping device and ahead of said gap, as considered in the direction of rotation of said draping device, in said first position of said one device whereby the groups of articles are caused to rotate about their axes and the uniting bands are convoluted therearound during travel through said gap; and means for actuating said displacing means so as to move said one device to said second position in response to a reduction of operating speed of the machine to a predetermined minimum speed.
Claim 2
Dependent Claim
199 words
In a machine for convoluting adhesive-coated uniting bands around groups of coaxial rod-shaped articles having a predetermined diameter, the combination of a rotary draping device; a rolling device; means for heating at least one of said devices; displacing means actuatable to move one of said devices between a first position in which said one device is nearer to the other of said devices and said devices define a gap having a width slightly less than said predetermined diameter, and a second position in which said one device is more distant from said other device; means for delivering groups of articles and non-convoluted uniting bands to said draping device in parallelism with the axis of said draping device and ahead of said gap, as considered in the direction of rotation of said draping device, in said first position of said one device whereby the groups of articles are caused to rotate about their axes and the uniting bands are convoluted therearound during travel through said gap; and means for actuating said displacing means so as to move said one device to said second position in response to a reduction of operating speed of the machine to a predetermined minimum speed.
Claim 3
Dependent Claim
13 words
The combination of claim 1, wherein said one device is said rolling device.
Claim 4
Dependent Claim
30 words
The combination of claim 1, wherein said draping device comprises a drum having a peripheral rolling surface provided with equidistant webs extending in parallelism with the axis of said drum.
Claim 5
Dependent Claim
40 words
The combination of claim 1, wherein said heating means is arranged to heat said rolling device and said rolling device constitutes said one device, said displacing means including means for moving said rolling device substantially radially of said draping device.
Claim 6
Dependent Claim
21 words
The combination of claim 4, wherein said moving means includes a parallel motion and said actuating means comprises a fluid-operated motor.
Claim 7
Dependent Claim
15 words
The combination of claim 5, wherein said motor includes a pneumatic cylinder and piston unit.
Claim 8
Dependent Claim
31 words
The combination of claim 6, wherein said unit includes a double-acting cylinder and further comprising a source of pressurized fluid and a multi-position valve interposed between said cylinder and said source.
Claim 9
Dependent Claim
50 words
The combination of claim 1, wherein said actuating means includes means for monitoring the speed of said draping device and motor means operative to move said one device to said second position by way of said displacing means when the speed of said draping device reaches a predetermined minimum value.
Claim 10
Dependent Claim
32 words
The combination of claim 1, wherein said machine is a filter cigarette making machine and each group of rod-shaped articles includes two spaced-apart tobacco rods and a filter plug between such rods.
Claim 11
Dependent Claim
41 words
The combination of claim 1, wherein said machine further includes a prime mover and said actuating means includes means for causing said displacing means to move said one device to said second position in response to stoppage of said prime mover.