US3592093A — Machines for cutting sheet material, sheet metal …

Claim 1

Independent Claim 224 words

In a machine for cutting sheet material, metal sheet and the like, the combination comprising a machine bed to support said sheet material, metal sheet and the like, a vertically reciprocable slide, cutter means carried by the slide, said cutter means having two cutting edges disposed at an angle to each other, a pair of guide edges for guiding said sheet material, metal sheet and the like, two guides formed in said machine bed, each guide extending parallel to a respective one of the two cutting edges, two slide means each arranged to move along a respective one of said two guides in a direction parallel to the respective cutting edge, connecting means articulatingly connecting said guide edges respectively to the two slide means to form two respective guide edge and slide assemblies, drive means operable to apply driving force to each guide edge and slide assembly alternately in one direction and the opposite direction along the respective guide, selectively adjustable stop means on the connecting means, said stop means being operative to cause the driving force to effect selectively either translation alone or rotation alone or both translation and rotation of the respective guide edge, the guide edges being equipped with means for controlling the operation of the vertically reciprocable slide and the vertically reciprocable slide carrying elements for controlling the drive means.

Claim 2

Dependent Claim 224 words

In a machine for cutting sheet material, metal sheet and the like, the combination comprising a machine bed to support said sheet material, metal sheet and the like, a vertically reciprocable slide, cutter means carried by the slide, said cutter means having two cutting edges disposed at an angle to each other, a pair of guide edges for guiding said sheet material, metal sheet and the like, two guides formed in said machine bed, each guide extending parallel to a respective one of the two cutting edges, two slide means each arranged to move along a respective one of said two guides in a direction parallel to the respective cutting edge, connecting means articulatingly connecting said guide edges respectively to the two slide means to form two respective guide edge and slide assemblies, drive means operable to apply driving force to each guide edge and slide assembly alternately in one direction and the opposite direction along the respective guide, selectively adjustable stop means on the connecting means, said stop means being operative to cause the driving force to effect selectively either translation alone or rotation alone or both translation and rotation of the respective guide edge, the guide edges being equipped with means for controlling the operation of the vertically reciprocable slide and the vertically reciprocable slide carrying elements for controlling the drive means.

Claim 3

Dependent Claim 79 words

In a machine, the combination as claimed in claim 1, wherein each guide edge is articulatingly connected to the associated slide means by means including a pin projecting upwardly from said slide means, an upper surface of the slide means being located below the level of the bed, said pin having a head, a spring arranged to act between the head of the pin and the guide edge to force said guide edge against the surface of the bed.

Claim 4

Dependent Claim 63 words

In a machine, the combination as claimed in claim 1, in which said drive means comprises two pneumatic or hydraulic double-acting rams each consisting of a cylinder, piston and piston rod, each cylinder being carried by the machine bed parallel to the guide along which the respective slide means is movable, one end of the piston rod being coupled to the slide means.

Claim 5

Dependent Claim 153 words

In a machine, the combination as claimed in claim 3, wherein each guide edge contains a series of holes designed to take a pin, said pin being adapted to couple to the guide edge the end of at least one rod of said connecting means (medium length) passing through a firsT pair of cutouts formed in a first plate integral with the slide means, said stop means comprising adjustable blocks arranged upon the aforesaid rod and disposed in such fashion as to regulate the limits of travel of each guide edge, a first two of these stops being arranged at opposite sides of said plate integral with the slide means and a second two stops at opposite sides of a second plate fixed to the bed, a cutout formed in said second plate being open in the upward direction and its axis being displaced in relation to the axis of the piston rod.

Claim 6

Dependent Claim 184 words

In a machine, the combination as claimed in claim 1, in which said driving means are formed by rams, said rams having their ends connected together two by two, each ram having feed port means, there being arranged in series with each feed port means a control three-way valve, the valve having ports comprising an intake, a discharge which is open when the valve is supplied and goes to the feed port means of each ram, and a throttled bleed port, lines which interconnect the ends of the two rams going to the discharge port of said three-way valve, the valve having an actuating element which is under the control of a rotating multilobe cam which rotates one pitch with each complete stroke of the vertically reciprocable slide, elements controlling said cam being constituted by a lever carried by said vertically reciprocable slide and designed, under the effect of elastic means, to engage drive pins on said cam, said lever, by means of a manually operable eccentric, being capable of being locked in position so that said pins cannot be engaged in said manner.

Claim 7

Dependent Claim 84 words

In a machine, the combination as claimed in claim 1, in which bodies of the guide edges contain cavities open towards the fronts of said edges and normally closed off by levers articulated to said guide edges, which levers are designed, when the sheet material, metal sheet and the like being cut is offered up to the guide edges, to operate at least one contact-breaker arranged in said cavities and thus operate a clutch which controls a working stroke of the vertically reciprocable slide.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1974-07-12	1975-01-11	1975-07-13	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1978-07-12	1979-01-11	1979-07-13	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1982-07-12	1983-01-11	1983-07-13	$7700.00	Window Closed / Lapsed

Machines for cutting sheet material, sheet metal and the like

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