Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
178 words
Apparatus for severing a running web at variable intervals to subdivide the web into sections of desired length, comprising means for advancing the web lengthwise along a predetermined path at a predetermined speed; at least one rotary cutter adjacent to said path and having means for severing the running web in at least one predetermined angular position thereof; and means for driving said cutter including a signal-responsive variable-stepping-rate stepping motor having output means operatively connected with said cutter and means for controlling the stepping rate of said motor, including means for transmitting to said motor signals at a first frequency in said predetermined angular position of said cutter to thereby rotate the cutter at said predetermined speed and at a selected one of a plurality of second frequencies to thereby rotate said cutter at a selected one of a plurality of second speeds in other angular positions of said cutter so that the interval of time which elapses between two successive movements of said cutter to said predetermined angular position is a function of the selected second frequency.
Claim 2
Dependent Claim
178 words
Apparatus for severing a running web at variable intervals to subdivide the web into sections of desired length, comprising means for advancing the web lengthwise along a predetermined path at a predetermined speed; at least one rotary cutter adjacent to said path and having means for severing the running web in at least one predetermined angular position thereof; and means for driving said cutter including a signal-responsive variable-stepping-rate stepping motor having output means operatively connected with said cutter and means for controlling the stepping rate of said motor, including means for transmitting to said motor signals at a first frequency in said predetermined angular position of said cutter to thereby rotate the cutter at said predetermined speed and at a selected one of a plurality of second frequencies to thereby rotate said cutter at a selected one of a plurality of second speeds in other angular positions of said cutter so that the interval of time which elapses between two successive movements of said cutter to said predetermined angular position is a function of the selected second frequency.
Claim 3
Dependent Claim
30 words
The apparatus of claim 1, wherein said signal transmitting means comprises a rotary element and means for rotating said element at a speed which is proportional to said predetermined speed.
Claim 4
Dependent Claim
20 words
The apparatus of claim 2, wherein said rotating means comprises a transmission connecting said advancing means with said rotary element.
Claim 5
Dependent Claim
81 words
The apparatus of claim 2, wherein said element has a first group of equidistant indicia and a second group of indicia having a spacing different from the spacing of indicia of said first group, said signal transmitting means further comprising signal generating indicia monitoring means adjacent to said element and operative to transmit signals at said first frequency on detection of indicia of said first group and at one of said second frequencies on detection of indicia of said second group.
Claim 6
Dependent Claim
88 words
The apparatus of claim 4, wherein said signal transmitting means further comprises at least one additional rotary element insertable into said controlling means as a substitute for said first mentioned element and having indicia whose distribution deviates from the distribution of indicia on said first mentioned element, and means for rotating said second element at a speed which is different from the speed of said first mentioned element, said last mentioned rotating means being insertable into said controlling means as a substitute for said first mentioned rotating means.
Claim 7
Dependent Claim
13 words
The apparatus of claim 2, wherein said rotating means comprises a variable-speed transmission.
Claim 8
Dependent Claim
13 words
The apparatus of claim 1, wherein said stepping motor is a fluid-powered motor.
Claim 9
Dependent Claim
54 words
The apparatus of claim 1, wherein said cutter is located at one side of said path and further comprising a second cutter located at the other side of said path opposite said first mentioned cutter, and means for rotating said second cutter at the speed of said first cutter but in the opposite direction.
Claim 10
Dependent Claim
24 words
The apparatus of claim 1, wherein said controlling means includes at least one transmission having an input element receiving torque from said advancing means.
Claim 11
Dependent Claim
13 words
The apparatus of claim 9, wherein said transmission is a removable gear transmission.