US2289985A - Tile and glass cutter - Google Patents

Description

imm.

ATTO R N EY July 14, 1942.

E. E. NASTRI TILE AND GLASS CUTTER Filed May 9, 1941 Patented July 14, 1942 UN ITE D" STAT ES PAT EN T OF FICE TILE AND GLASS CUTTER Emil E. Nastri, Brooklyn, N. Y; Application May 9, 1941, Serial No. 392,749

2 Claims.

This invention relates to improvements in ma chines for cutting and breaking or crushing articles, particularly tiles and glass plates or the like material, and it is the principal object of the invention to provide such a machine which is simple and inexpensive in its construction, yet durable and highly eicient in use.

Another object of my invention is the provision of a cutting machine or apparatus of this type which by the simple operation of a spring controlled handle bar or lever engages the material to be cut or broken with a knife blade projecting from a base between two cushioning pads.

A further object of my invention is the provision of a cutting machine of the above character equipped with an adjustable guide for the material to be cut.

A still further object of the invention is the provision of an apparatus in which a movable Crusher tool engages the article as it is held between said tool and adjustable anvil or the like.

In the accompanying drawing forming a material part of this disclosure:

Fig. 1 is a top plan view of a cutter apparatus constructed according to my invention.

Fig. 2 is a side elevation thereof, partly in section.

Fig. 3 is a cross-section on line 3 3 of Figure 1.

As illustrated in Figures 1, 2 and 3, the machine comprises a base p late I on which are mounted the cushioning pads II and I2 leaving a limited space between their opposite inner side edges through which the cutter I3 projects. Cooperating with this cutter is a longitudinally eX- tending handle bar or lever I4 mounted near its front end between two posts, I5, I6 for vertical movement which are secured with their feet to the base plate and connected at their upper ends by means of the pin I'I to limit the upward movement of the handle bar which carries at its projecting front end an operating knob I8 or the like. Near its rear end the handle bar I4 is guided through a frame or bracket I9 having its side walls slotted, as at 20, and in the oppositely disposed slots is mounted for up and down movement a cross-pin 2I or the like to the outer ends of which projecting beyond the frame I9 are attached the upper ends of the springs 22, 23, the lower ends of which are attached to a cross-pin 24. The springs 22, 23 tend to normally holding the rear end of the handle I4 down and thus the front end with its knob elevated. Behind the frame I9 the handle bar I4 is guided through a bracket 25 and a screw 26 extends into said bracket from above for limiting the upward' movement of the rear end of the handle-bar I4; Intermediate `the post I5, Iand the frame I9, the handle-bar I4 carries a crosshead 2`1secured'thereto by means of a screw 23 or the like and having its lower face 29 recessed and shaped to serve as a means for holding the work-piece to be cut in position.

A guide-piece or member 3U for the work piece is adjustably held to a member 3 I, secured to the base plate, and member 30 has a longitudinal slot 32 through which extends a bolt 33 carrying a wing nut. It will be clear that such a guide member for the Work-piece may be constructed in any suitable way differing from that shown without deviating from my invention.

A cross-channel 34 on the base plate serves for the reception of waste material which can readily be removed therefrom as both ends of the channel are open.

In operation, the tile or glass plate or other material to be cut is placed onto the cushioned portion of the base plate and the guide member 3U is so adjusted that the line on which the material is to be cut is in alignment with the cutter I3 therebelow, and if now the handle is pressed down with the knob the cross-head 21 will firmly hold the same in its adjusted position and a further depression of the handle will engage the material to be cut with the cutter and cut it along the predetermined line determined by the guide while held by the member 2l.

It will be clear that the springs 22, 23 will tend to hold the front end of the handle I4 normally in an elevated position and return the same into its position of rest after each cutting operation. Dust and debris can be accumulated in the channel 34 and then easily removed through the open ends thereof.

The up and down movements of the handle bar I4 can also be limited by means of an adjustable screw 34'.

It will be understood that I have disclosed the preferred forms of my invention only as a few examples of the many possible ways to practically construct my machine, and that I may make such changes in its general arrangement and in the construction of its minor details as come within the scope of the appended claims without departure from the spirit of my invention and the principle involved.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a tile and glass cutter of the character described, a base-plate, a pair of cushions on said plate for yieldingly supporting the work-piece, a cutter longitudinally extending on said baseplate and held thereto projecting between the adjoining side edges of said cushions, a longitudinally extending handle bar above said cutter, a cross-pin extending through and moving in the slot of a bracket on said base-plate and having springs attached to its ends, said springs also attached to said base-plate to constitute a means to normally hold one end of said handle-bar also passing through the slot of said bracket depressed and its other end above said cutter and allowing its depression against said base to press the material to be cut against the cutter, a cross-head having its lower face recessed attached to said handle bar to hold said material during the cutting operation, a slotted sliding member adjustable on said base-plate presenting a means to adjust and guide said material in its proper position to cut it at a predetermined section or portion, a pin to limit the upward movement of said handle bar at one end thereof, and means for allowing the removal of the residue or waste accumulating during the cutting operation.

2. In a cutter as described, a base-plate, cushions or pads for supporting the work-piece on said base-plate and spaced from one another thereon, a cutter projecting through the space between said pads, and a longitudinally extending handle-bar or lever arranged for vertical movement above said cutter and co-operating therewith to cut the work-piece resting on said pads when depressed against said cutter, a slotted bracket on said baseplate through the slot of which said lever is guided, a cross-pin movably passed through the slot in said bracket with its ends extending therefrom, springs attached to the ends of said pin and to the base-plate to normally hold one end of said lever depressed and the other elevated, a cross-head on said lever having its lower face formed on the arc of a circle for engaging and holding the workpiece in position during the cutting operation, and a slotted, substantially triangular guide member adjustable on said base-plate for properly guiding the work-piece relatively to said cross-head.

EMIL E. NASTRI.

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