Title of Invention	AN ALTERNATE CLAMPING DEVICE FOR A VIBRATING MACHINE USED IN CEMENT INDUSTRY FOR TESTING THE COMPRESSIVE STRENGTH OF CEMENT
Abstract	In this invention AN ALTERNATE CLAMPING DEVICE FOR A VIBRATING MACHINE USED IN CEMENT INDUSTRY FOR TESTING THE COMPRESSIVE STRENGTH OF CEMENT the process of tightening and loosening the clamp has been automated by the incorporation of a Lever and Sprocket Wheel on the Eccentric Shaft and a Chain Assembly adjacent to the Vibrator. When the Lever is hand-pressed fully, it gets locked and once the vibration is over, the Lever automatically loosens thus releasing the pressure on the mould for replacement. This provision helps in avoiding the repeated manual tightening and loosening of the bolts on the clamps for the preparation of cement mortar cubes, for testing the compressive strength of cement. This improvisation is very effective in reducing the time and labour involvement, without affecting the magnitude and quality of vibration that was being achieved earlier.

Title of Invention

AN ALTERNATE CLAMPING DEVICE FOR A VIBRATING MACHINE USED IN CEMENT INDUSTRY FOR TESTING THE COMPRESSIVE STRENGTH OF CEMENT

Abstract

In this invention AN ALTERNATE CLAMPING DEVICE FOR A VIBRATING MACHINE USED IN CEMENT INDUSTRY FOR TESTING THE COMPRESSIVE STRENGTH OF CEMENT the process of tightening and loosening the clamp has been automated by the incorporation of a Lever and Sprocket Wheel on the Eccentric Shaft and a Chain Assembly adjacent to the Vibrator. When the Lever is hand-pressed fully, it gets locked and once the vibration is over, the Lever automatically loosens thus releasing the pressure on the mould for replacement. This provision helps in avoiding the repeated manual tightening and loosening of the bolts on the clamps for the preparation of cement mortar cubes, for testing the compressive strength of cement. This improvisation is very effective in reducing the time and labour involvement, without affecting the magnitude and quality of vibration that was being achieved earlier.

Full Text	This invention "AN ALTERNATE CLAMPING DEVICE FOR A VIBRATING MACHINE USED IN CEMENT INDUSTRY FOR TESTING THE COMPRESSIVE STRENGTH OF CEMENT" relates to the improvisations that have been made in the locking mechanism used with respect to arresting the movement of cement moulds on a vibrating machine. A vibrating Machine is used in a cement industry for testing the compressive strength of cement mortar cubes. A typical Vibrating Machine, basically consists of a Vibrator Housing (G), mounted on an Eccentric Shaft (E) of Figure (1) on Drawing Sheet No: 1, which is supported on four Springs (I) of Figure (1). The entire assembly is mounted on a Channel Bed (F), which revolves to cause the vibration. The Vibrator Platform is provided with two guide pieces, for positioning the Cast Iron Mould (D). The mould is firmly held in position by means of tightening the Bolts (A) & (B). For every mould fixing and removal, these bolts have to be tightened and loosened. This Invention. AN ALTERNATE CLAMPING DEVICE FOR A VIBRATING MACHINE USED IN CEMENT INDUSTRY FOR TESTING THE COMPRESSIVE STRENGTH OF CEMENT, is aimed at overcoming this Mechanical means of tightening and loosening the bolts/nuts for replacement of the mould, each and every time, which is a laborious process. This has been achieved in this Invention, with the aid of a Lever/Handle (T), Chain (W) and a Sprocket Wheel (V), Further, this Improvisation is very effective in reducing the time and labour involvement, with out affecting the magnitude and quality of vibration that was being achieved earlier. Consequently, this improvised vibrating machine has increased the output, with minimum strain. In order to avoid the repeated tightening and loosening of the bolts in this AN ALTERNATE CLAMPING DEVICE FOR A VIBRATING MACHlNE USED IN CEMENT INDUSTRY FOR TESTING THE COMPRESSIVE STRENGTH OF CEMENT, an additional device has been made use of to hold the mould firmly at the vibrator, as sketched on the Drawing sheet No: 2 of the accompanying drawings, which forms apart of this Complete Specification. This device is aided by a Lever, fitted with Chain and a Sprocket wheel. When the Lever is hand pressed fully, it gets locked and once the vibration is over, the Lever automatically loosens, thus releasing the lock and the pressure on the mould is eased to facilitate the removal of the mould and replacing it with a fresh one. This Improvised system has automised the process of manual tightening and loosening of the bolts. Consequently the incorporation of this automised facility in the vibrating machine saves a lot of time and energy, thereby not only simplifying the work, but also is easy to operate and goes a long way in improving the productivity. Two small gun metal shafts with metal bushes is provided at both the sides of the vibrator, with two sprockets fitted rigidly at the inner ends, as depicted in Figure-(C). The top plate on both sides are extended by about 40 ram, lengthwise to fit the adjustable bolts and nuts. While the sprocket is connected to a chain, the other end of the chain is connected to a bolt with Lock (Y) and pin on the top plate, where the Hopper (C) is mounted. The bolt has a square cut and a whole at the centre of the rod projection to suit the chain by a pin and its lock. For the purpose of packing, a rubber of about 10 ram thickness and of dimension 7cm X cm is provided, which prevents any cement paste leakage and also facilitates easy tightening of the relevant bolt and nut. Two side rods are fitted to the outer end of the shafts, whereas the other end of the side rods are connected to a centre rod. Further, two sliding lock levers are mounted near the chains on the vibrator for tightening and loosening of the cube mould. A plate is fitted on the rare end cap of the vibrator shaft, to which a spring is connected. A 5mm thickness rubber sheet, being a square of 9.5 cms X 9.5cms is either placed in between the stud bolt of the vibrator or on the mould clamp. The base plate and the cube mould are placed as usual. The mould is kept in the vibrating machine in the exclusive space provided for it, by a Mould Clamp (H), consequent to which the mould is in a tightened and guarded position. After mixing cement and sand in the required proposition, the resultant mixture is poured into the mould through a Hopper (C), provided for this purpose. Now the center rod is pressed down. Once the lever attains the maximum tightness, slide the lock lever one by one over the side rod, to hold it rigid. Subsequently, vibration to the magnitude of 12,000 +/- 400 RPM is effected for two minutes, by starting the vibrating machine. After the prescribed period of two minutes is over, the clamp that holds the mould in place is loosened for removing the mould and is replaced with a fresh one. The center rod moves up to the top plate's bottom by the action of the springs. The mould clamp along with the cube mould and the base plate could be removed now from the vibrator. This procedure can be continued and repeated without any need for further tightening. Figure (1) on Sheet No: 1 of the accompanying drawings is that of atypical conventional vibrating machine used in a Cement Industry and Sheet No: 2 of the accompanying drawings relates to this improvisation. We Claim, 1) AN ALTERNATE CLAMPING DEVICE FOR A VIBRATING MACHINE USED IN CEMENT INDUSTRY FOR TESTING THE COMPRESSIVE STRENGTH OF CEMENT, comprising of a Clamp (H) that holds the mould, with a lever (T), sprocket wheel (V) on the Eccentric Shaft (E) and a chain assembly (W) adjacent to the supporting springs (I) of the vibrator, the lever, sprocket wheel and the chain assembly inter-linked m a manner that when the lever (T) is hand-pressed fully, it gets locked and once the vibration is over the lever automatically loosens, thus releasing the pressure on the mould for replacement

Full Text

This invention "AN ALTERNATE CLAMPING DEVICE FOR A VIBRATING MACHINE USED IN CEMENT INDUSTRY FOR TESTING THE COMPRESSIVE STRENGTH OF CEMENT" relates to the improvisations that have been made in the locking mechanism used with respect to arresting the movement of cement moulds on a vibrating machine. A vibrating Machine is used in a cement industry for testing the compressive strength of cement mortar cubes.
A typical Vibrating Machine, basically consists of a Vibrator Housing (G), mounted on an Eccentric Shaft (E) of Figure (1) on Drawing Sheet No: 1, which is supported on four Springs (I) of Figure (1). The entire assembly is mounted on a Channel Bed (F), which revolves to cause the vibration. The Vibrator Platform is provided with two guide pieces, for positioning the Cast Iron Mould (D). The mould is firmly held in position by means of tightening the Bolts (A) & (B). For every mould fixing and removal, these bolts have to be tightened and loosened.
This Invention. AN ALTERNATE CLAMPING DEVICE FOR A VIBRATING MACHINE USED IN CEMENT INDUSTRY FOR TESTING THE COMPRESSIVE STRENGTH OF CEMENT, is aimed at overcoming this Mechanical means of tightening and loosening the bolts/nuts for replacement of the mould, each and every time, which is a laborious process. This has been achieved in this Invention, with the aid of a Lever/Handle (T), Chain (W) and a Sprocket Wheel (V), Further, this Improvisation is very effective in reducing the time and labour involvement, with out affecting the magnitude and quality of vibration that was being achieved earlier. Consequently, this improvised vibrating machine has increased the output, with minimum strain.

In order to avoid the repeated tightening and loosening of the bolts in this AN ALTERNATE CLAMPING DEVICE FOR A VIBRATING MACHlNE USED IN CEMENT INDUSTRY FOR TESTING THE COMPRESSIVE STRENGTH OF CEMENT, an additional device has been made use of to hold the mould firmly at the vibrator, as sketched on the Drawing sheet No: 2 of the accompanying drawings, which forms apart of this Complete Specification. This device is aided by a Lever, fitted with Chain and a Sprocket wheel. When the Lever is hand pressed fully, it gets locked and once the vibration is over, the Lever automatically loosens, thus releasing the lock and the pressure on the mould is eased to facilitate the removal of the mould and replacing it with a fresh one. This Improvised system has automised the process of manual tightening and loosening of the bolts. Consequently the incorporation of this automised facility in the vibrating machine saves a lot of time and energy, thereby not only simplifying the work, but also is easy to operate and goes a long way in improving the productivity.

Two small gun metal shafts with metal bushes is provided at both the sides of the vibrator, with two sprockets fitted rigidly at the inner ends, as depicted in Figure-(C). The top plate on both sides are extended by about 40 ram, lengthwise to fit the adjustable bolts and nuts. While the sprocket is connected to a chain, the other end of the chain is connected to a bolt with Lock (Y) and pin on the top plate, where the Hopper (C) is mounted. The bolt has a square cut and a whole at the centre of the rod projection to suit the chain by a pin and its lock.
For the purpose of packing, a rubber of about 10 ram thickness and of dimension 7cm X cm is provided, which prevents any cement paste leakage and

also facilitates easy tightening of the relevant bolt and nut. Two side rods are fitted to the outer end of the shafts, whereas the other end of the side rods are connected to a centre rod. Further, two sliding lock levers are mounted near the chains on the vibrator for tightening and loosening of the cube mould. A plate is fitted on the rare end cap of the vibrator shaft, to which a spring is connected.
A 5mm thickness rubber sheet, being a square of 9.5 cms X 9.5cms is either placed in between the stud bolt of the vibrator or on the mould clamp. The base plate and the cube mould are placed as usual. The mould is kept in the vibrating machine in the exclusive space provided for it, by a Mould Clamp (H), consequent to which the mould is in a tightened and guarded position. After mixing cement and sand in the required proposition, the resultant mixture is poured into the mould through a Hopper (C), provided for this purpose. Now the center rod is pressed down. Once the lever attains the maximum tightness, slide the lock lever one by one over the side rod, to hold it rigid. Subsequently, vibration to the magnitude of 12,000 +/- 400 RPM is effected for two minutes, by starting the vibrating machine. After the prescribed period of two minutes is over, the clamp that holds the mould in place is loosened for removing the mould and is replaced with a fresh one. The center rod moves up to the top plate's bottom by the action of the springs. The mould clamp along with the cube mould and the base plate could be removed now from the vibrator. This procedure can be continued and repeated without any need for further tightening.
Figure (1) on Sheet No: 1 of the accompanying drawings is that of atypical conventional vibrating machine used in a Cement Industry and Sheet No: 2 of the accompanying drawings relates to this improvisation.

We Claim,
1) AN ALTERNATE CLAMPING DEVICE FOR A VIBRATING MACHINE USED IN CEMENT INDUSTRY FOR TESTING THE COMPRESSIVE STRENGTH OF CEMENT, comprising of a Clamp (H) that holds the mould, with a lever (T), sprocket wheel (V) on the Eccentric Shaft (E) and a chain assembly (W) adjacent to the supporting springs (I) of the vibrator, the lever, sprocket wheel and the chain assembly inter-linked m a manner that when the lever (T) is hand-pressed fully, it gets locked and once the vibration is over the lever automatically loosens, thus releasing the pressure on the mould for replacement

Documents:

0547-mas-2001 abstract duplicate.pdf

0547-mas-2001 abstract.pdf

0547-mas-2001 claims duplicate.pdf

0547-mas-2001 claims.pdf

0547-mas-2001 correspondence others.pdf

0547-mas-2001 correspondence po.pdf

0547-mas-2001 description (complete) duplicate.pdf

0547-mas-2001 description (complete).pdf

0547-mas-2001 drawings duplicate.pdf

0547-mas-2001 drawings.pdf

0547-mas-2001 form-1.pdf

0547-mas-2001 form-19.pdf

0547-mas-2001 form-26.pdf

0547-mas-2001 form-5.pdf

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Patent Number

200778

Indian Patent Application Number

547/MAS/2001

PG Journal Number

8/2007

Publication Date

23-Feb-2007

Grant Date

02-Jun-2006

Date of Filing

04-Jul-2001

Name of Patentee

MALABAR CEMENTS LIMITED

Applicant Address

WALAYAR, PALAKKAD 678 624,

Inventors:

#	Inventor's Name	Inventor's Address
1	ANTHONI MUTHU MARIA LAWRANCE	KOZHIPPARA P.O., CHITTUR TALUK PALAKKAD - 678 557 KERALA

PCT International Classification Number

B28B001/08

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1			NA