A thin nut with screw holes to be used in anchoring hammering spanners and its method of application

Abstract

This invention relates to a thin nut with a special design to prevent work accidents during the removal of rusted, jammed, or entrapped parts by using a hammering spanner due to the difficulties of dismantling them. Hammering spanners are made of a special alloy to ensure their non-sparkling feature since they may be used in work environments where gas, fuel or inflammable oil are involved in the process. This invention proposes an alternative gadget to eliminate the risks of spinning-off or slipping of the hammering spanner during the removal of problematic nuts.

Description

[0001] A THIN NUT with SCREW HOLES to be USED in ANCHORING HAMMERING SPANNERS and its METHOD of APPLICATION

[0002] Technical Area

[0003] This invention relates to a thin nut with a special design to prevent work accidents during the removal of rusted, jammed, or entrapped parts by using a hammering spanner due to the difficulties of dismantling them. Hammering spanners are made of a special alloy to ensure their non-sparkling feature since they may be used in work environments where gas, fuel or inflammable oil are involved in the process. This invention proposes an alternative gadget to eliminate the risks of spinning-off or slipping of the hammering spanner during the removal of problematic nuts.

[0004] Background

[0005] Hammering spanners are wrench-like tools which are widely used in oil refineries or industrial facilities where inflammable oils are involved in the process to dismantle machinery or to remove and replace rusted, jammed, or entrapped fittings, junction pieces or connectors.

[0006] In the one-man-use of a hammering spanner, while one hand is holding the spanner gripping the nut the other hand holds a hammer to hit the spanner’s handle with force in the direction of dismantling. In the application of this technique if the situation demands a worker holds tight the spanner while a second worker hammers down on the spanner’s handle with force in the direction of dismantling.

[0007] With the finger saver applications, a string passes through a plastic tube and then is attached to the spanner. A sledgehammer or a martel is then used to hammer down on the handlebar.

[0008] The patent with the application # TR 2023 / 006454 “A ROUND NUT to be USED in ANCHORING HAMMERING SPANNERS and its METHOD of APPLICATION” deals with these problems.

[0009] Technical problems to be solved

[0010] Present-day technique involving one or two men using a hammering spanner and martel or sledgehammer have a serious risk of spinning off of the spanner. Using a finger saver takes two men. Finger savers ensure worker security to a certain extent but there are cases when this tool may not fit in the cluttered space. What’s more, the string passing through the plastic handlebar may become deformed in time and might cause injuries to the workers.

[0011] It is obvious that these two techniques have problems as far as job security is concerned.

[0012] These problems are solved using the proposed components in the patent document with the application # TR 2023 / 006454 “A ROUND NUT to be USED in ANCHORING HAMMERING SPANNERS and its METHOD of APPLICATION”.

[0013] However, the thin nut proposed in the application TR 2023 / 006454 failed to have a grip especially on unthreaded stud bolts and its hexagonal structure was found to impose extra costs of production.

[0014] Brief Description of the Drawings

[0015] The thin nut which is designed to solve the above-mentioned problems are shown in the following drawings;

[0016] Fig. 1- Thin nut with screw holes

[0017] Fig. 2- Perspective view of the thin nut with screw holes on an unthreaded stud bolt.

[0018] List of References

[0019] Part numbers provided in the drawings are as the following:

[0020] 1) Stud bolt

[0021] 2) Hammering spanner

[0022] 3) Handlebar

[0023] 4) Nut

[0024] 5) Thin nut

[0025] 6) Grub bolt

[0026] 7) Screw holes

[0027] 8) Middle hole

[0028] Detailed Description

[0029] This invention aims to prevent injuries during the removal of difficult-to-dismantle rusted, jammed or entrapped machine parts by using a Hammering spanner (2) which may spin-off or slip under the strokes of a martel or a sledgehammer. To achieve this, two basic approaches are resorted to:

[0030] • Anchoring the Hammering spanner (2) to the Nut (4) to be removed, or

[0031] • Anchoring the Hammering spanner (2) to the Stud bolt (1).

[0032] In order to prevent work accidents, a round nut has been developed for use in the application of anchoring the Hammering spanner (2) to the Nut (4) technique in the documents of TR 2023 / 006454.

[0033] To be able to apply the first method, i.e. Anchoring the Hammering spanner (2) to the Nut (4), the Stud bolt ( 1 ) of the Nut (4) must have enough space in the direction of removal. a) Threaded stud bolts

[0034] It is necessary also for the Thin nut (5) to have threads compatible with those of the Stud bolt (1) and an external radius greater than that of both the Hammering spanner (2) and the Nut (4). The Grub bolts (6) to be used in fastening the Thin nut (5) to the threaded Stud bolt (1) need to be alien-headed and be made of copper or similar soft metals for single use. Due to the ductility of copper, while fastening the Thin nut (5) to the Stud bolt (1) it takes the impact of martel strokes on the Handlebar (3) thus preventing damage on the threads of Stud bolt (1) during the removal operation. b) Unthreaded stud bolts

[0035] In some cases, Stud bolts (1) come in partially or wholly unthreaded. In such a case, a modification on the Thin nut (5) was needed to remove an entrapped Nut (4).

[0036] Fig. 1 shows a new design for the Thin nuts (5).

[0037] In the first place, this type of Thin nuts (5) need to have unthreaded Middle holes (8). As shown in Fig. 1, securing the fixity of Grub bolt (6) on the unthreaded Stud bolt (1) is obtained via two threaded Screw holes (7) which are 180° apart on the side surface of the Thin nut (5). As shown in Fig. 2, the Thin nut (5) squeezes the Hammering spanner (2) from below thus holds it in place under the strokes of a martel or a sledgehammer on the Handlebar (3).

[0038] As a result, the emergent properties brought by this application are:

[0039] • Screw holes (7) on the Thin nut (5) has overcome the problem of relatively weak grip,

[0040] • External profile has been redesigned to have a circular shape rather than hexagonal,

[0041] • Grub bolts (6) used with Thin nuts (5) are made of soft metal in order for the protection of Stud bolt (1) threads against the martel strokes. Industrial Applications

[0042] Technical drawings and measurements are cited in the relevant diestocks. Measurements and dimensions are not within the scope of this application and various dimensions may apply depending on the situation, preserving the same functionalities.

Claims

CLAIMS1. A Thin nut (5) to prevent spin-off or slip of Hammering spanner (2) during the removal of rusted, jammed, or entrapped parts including Grub bolts (6) made of copper or other soft metals for use with threaded Stud bolts ( 1 ) and Screw holes (7) on its side surface which are located 180° apart to ensure a firm grip.

2. According to Claim 1, a Thin nut (5) with Screw holes (7) having an external radius greater than that of both the Hammering spanner (2) and the Nut (4) as its characterizing feature.

3. According to Claim 1 or Claim 2, Thin nut (5) unthreaded for using with partially or wholly unthreaded Stud bolts (1) and with a threaded Middle hole (8) scaled to be compatible with the threaded Stud bolts (1) as its characterizing feature.

4. According to any one of the above Claims, a Thin nut (5) with Screw holes (7) having a circular shape.

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