US3752025A

US3752025A - Device for cutting a carpet

Info

Publication number: US3752025A
Authority: US
Inventors: T Michael
Original assignee: Individual
Current assignee: Individual
Priority date: 1970-10-22
Filing date: 1971-10-22
Publication date: 1973-08-14
Anticipated expiration: 1990-08-14
Also published as: FR2113100A5; NL141256B; GB1320458A; NL7015473A

Abstract

A device for cutting off any length from a carpet web comprising a section bar with a slidable gripping jaw at both extremities for co-operation with a border of the web, further comprising a cutting member slidable along said bar.

Description

United States Patent v 1 Van Everdingen 3,752,025 1 Aug. 14, 1973 3,659,487 5/ l 972 Henderson 3,240,093 3/l966 Bell, Jr. et al. 1,791,253 2/1931 Primary ExaminerAndrew R. Juhasz Assistant Examiner-W. Donald Bray Attorney-Allen D. Brufsky 221 Filed: Oct. 22, 1971 21 Appl. No.: 191,682

ABSTRACT Foreign Application Priority Data Oct.22,l971 Netherlands...............'....

[51] Int.

7015473 A device for cutting off any length from a carpet web 4 5' '3"/ 4' comprising a section barwith a slidable gripping jaw at both extremities for co operation with a border of the web, further comprising a cutting member slidable [58] Field of Search 269/55; 833/648, 649, 83/650, 485, 454, 455 References Cited UNITED STATES PATENTS along said bar.

4 Claims,4 Drawing Figures 3,529,504 9/1970 Hagerty et83/649X Patented Aug. 14, 1973 2 Sheets-Sheet 1 1 DEVICE FOR CUTTING A CARPET BACKGROUND OF THE INVENTION My invention relates to a device for cutting off any length from a carpet web, said apparatus comprising a frame with means for rotatably supporting at least one carpet roll, in addition to a displaceable cutting means and a guide for said cutting means.

Such a device is known from the Dutch Patent application No. 6911620 by means of which it is possible to cut off so-called wall-to-wall carpeting. The size of this device is considerable and it is very laborious to move said device if one wishes to cut off a piecefrom another carpet roll.

SUMMARY OF THE INVENTION My invention aims at providing an improvement in this respect and at offering the possibility of cutting off any desired piece of carpeting with a leight weight and simple apparatus, which at the same time requires a minimum of manpower. To this end the guideconsists of a removable beam or section bar provided at each end with a gripping jaw'for co-operation with a border of the carpet web, and said cutting member being slidable along said bar.

By using this device it is possible to move the guide towards each carpet roll, to fix it subsequently at the correct spot by means of the clamping jaws and finally to move the cutting member. As a matter of fact the weight of the guide and the clamping jaws connected therewith is limited and may easily be carried by one person. In the inoperative condition it can very easily cleared away without requiring much space.

It may happen that the width of the carpet web varies relative to the carpet web. In this way one may cut the carpet web dead square thus avoiding a well-known defeet of a carpet cut by hand. For it often happens that on the face of it the carpet has been cut dead square but that afterwards it is found that there is a difference of 10 to 15 cm. between the two borders of the carpet web.

BRIEF DESCRIPTION OF THE DRAWINGS:

FIG. 1 shows a view in perspective of the entire device.

FIG. 2 is a view of a gripping jaw.

FIG. 3 is also a view of the cutting means.

FIG. 4 shows on an enlarged scale a longitudinal section of the carpet web with the three main elements of the device.

As is apparent from FIG. 1 the device comprises a frame I provided with means (not shown) for rotatably supporting at least one, and in the present instance three carpet rolls 2. From the uppermost roll a web 3 extends downwards. A predetermined length has to be cut from said web which is done with the aid of a cutting member 4 (see FIG. 3) which is slidable along a guide 5. Said guide is of the profile or section bar type and is formed like a box plate girder (see FIG. 4) having at two opposite sides a channel extending along the entire length of the bar 5. The cutting member 4 comprises a sliding block 7 which is of a complementary shapewith respect to the channel 6. In addition two gripping jaws 8 (see FIG. 2) are slidable along the bar 5 such that each gripping jaw can engage the bordering of the carpet web 3.

At both ends of the bar 5 a steel tape 9 has been mounted. With this tape it is possible to check whether the section bar 5 is parallel to the floor, in other words accurateiy normal to the longitudinal direction of the web 3. Each gripping jaw 8, like the cutting means 4, is equipped with a sliding block 7 adapted to engage the sides of a channel 6 of the section bar 5 (see FIG. 4). Instead of both steel tapes 9, one may use a waterlevel mounted in the frame of the cutting member 4.

The device operates as follows:

The required web length is unreeled from the selected roll and the spot is marked where the cutting has to be made. Subsequently the section bar 5 is secured by means of the gripping jaws 8 on the web of carpet 3 such that the knife It) of the cutting member 4 is situated at the correct level. Now the distance down to the floor is measured with the aid of the steel tape 9 (left hand tape in FIG. I). This same distance is then measured at the other side with the steel tape 9 provided at that side, the end of the section bar 5 being displaced until said bar is accurately horizontal. Now the cutting member 4 can be moved along the bar 5 and the length of carpet is cut off.

The cutting member 4 comprises a handle 11 with which it can easily be slid along the section bar 5. Furthermore there is provided in the cutting member a guard 12 into which the knife projects. Consequently any unintentional damage to the other carpet roll is not possible.

Each gripping jaw 8 comprises a handle 13 for opening the jaw against the action of a spring I4. By means of said handle the gripping jaw can also be moved along the section bar 5 for adjustment to the width of the carpet web 3.

The advantages of the device according to the invention may be summarized as follows:

the apparatus is' easily displaceable and may be moved towards each carpet roll;

the carpet web can be cut off dead square (or it desired according to a predetermined angle);

the apparatus may be easily adapted to any width of the carpet;

no damage can be done to a second carpet located the section bar is constituted by a box plate girder having at two opposite sides a channel extending along the entire length of the bar, a complementary sliding block of the cutting member on the one hand and of both gripping jaws on the other hand being adapted to slide in said channel.

Claims

1. A device for cutting off any length from a carpet web, said apparatus comprising a frame with means for rotatably supporting at least one carpet roll, a displaceable cutting member and a guide for said cutting member, said guide consisting of a removable section bar provided at each end with a gripping jaw for co-operation with a border of the carpet web, said cutting member being slidable along said bar.

2. A device according to claim 1, characterized in that at least one of the gripping jaws is slidable along the section bar.

3. A device according to claim 1, characterized in that the guide for the cutting member comprises means for adjusting a predetermined position of the section bar relative to the carpet web.

4. A device according to claim 1 characterized in that the section bar is constituted by a box plate girder having at two opposite sides a channel extending along the entire length of the bar, a complementary sliding block of the cutting member on the one hand and of both gripping jaws on the other hand being adapted to slide in said channel.