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Back to the List of the Granted Patents                                      Click here to download KE000184 PDF(11) Patent Number: KE 184
               
(45) Date of grant: 21/03/2005

(12) PATENT
 
(51) Int.CL7:A 23F 3/06, B 07C 5/36
(21) Application Number: 2003/ 000396
(22) Filing Date: 10/09/2003
(30) Priority data:
 (73) Owner: JAS WINDER SINGH SEHMI of, P.O Box 208, Kericho, Kenya
(72) Inventor: JASWINDER SINGH SEHMI
(74) Agent/address for correspondence:
 
(54) Title: SINGLE POINT ADJUSTING ARM FOR STATIC ROLLER
(57) Abstract:
A simple method and a line for a means of effective fibre removal, from ex-drier teas and presorting for effective removal of fibre and large balls from the black tea. The feed hopper to the machine has a tapered design to facilitate even distribution of tea on the bed plate of the pre sorter. An improved presorting machine wherein is provided a dimpled stainless steel surface positioned adjacent to and below a set of PVC rollers moving at slow speeds, to facilitate maximum pick up of fibre, which are repositioned using a Single point adjustment arm making it easier to adjust the up and down movement at a single point. The spring loaded plate attached to the fibre extractor rollers forms an even pressure on the roller ensuring maximum pick-up of fibre. The undercarriage is fully cushioned and mounted on rubber bushing providing a rigid yet fully cushioned or shock absorbing flexible unit. The main features of the machine are:
The adjustment arm bracket complete with frame that can be adjusted from one side. The bracket not only assists in cross parallel alignment, but also helps in securing the stainless steel plate which holds the spring hinged plate which has the felt pad fixed onto it, simplifying the concept of fibre removal from the roller.
The single point adjustment arm is fixed at point A which is the fulcrum for the movement in the arc XY. The adjustment screw is irrelevant as is the physical feature B which is the frame holding the roller. The length of point AC is limitless from 1mm to infinity. The arc XY is also limitless only limited by the adjustment screw. The movement of XY is related to the length of AC at the point A. The cushioned undercarriage which is rubber mounted, providing a rigid yet fully cushioned or shock absorbing flexible unit. The undercarriage also houses the drive mechanism. The taper feed hopper which has centrally placed' dividers which facilitate the flow of tea to give an even distribution on the bed for effective and maximum fibre removal.
 
TITLE: SINLGE POINT ADJUSTING ARM FOR STATIC ROLLE UNDERCARRIAGE FOR TEA SORTER INCLUDING DRIVE
Priority No. KE/P/03/00396
This invention relates to a mechanism for a tea sorting machine.
The problem encountered with pre sorters is to self-destruct themselves. The present invention have engineered the system in such a way that it gives utmost flexibility and cushion to the framework and bedplate of the machine, so as to give long years of maintenance free service.
The machine specs are to ISO 9002 standards.

DESCRIPTION:-
Physical Features: -
• Low center gravity height Machine.
• Frame Fully Jigged and Mig welded.
• Aesthetically Pleasant with complete food grade (AISI 304 S/STEEL)
specification fixtures.
• Hygienic and safety standards are priority to the design.
• Safety features include; -
o Fully Guarded from all fingers running nips
o Silent working machine.
• It is a User-friendly simple machine.
 
Mechanical Properties: -
• Food grade High density blue Static PVC rollers each roller can be adjusted parallel to the bed by the turn of the adjustable screw located at the side on each roller assembly eliminating the problem of adjusting the rollers from both sides.
• Roller adjustment from one side ensuring parallelism with the bed at all times,
through all height adjustments ( ½’- 5" ).
• All chutes are s/steel
• Undercarriage precision built.
• Sturdy base frame for vibration free performance and accurate alignment.
 • Crankshaft mechanism is fully balanced.
• Centrally lubricated
• Cushioned drive to ensure minimum vibration and maximum utilization of machine prior to maintenance.

• Feed and discharge Chutes ensures for minimum tea handled and a continuous 15    flow.
• Drive and rollers are driven independently via a reduction drive giving low energy consumption.
• High quality engineering felt on to pressure plate spring mounted ensures continuous even pressure for maximum pick up.

• High quality galvanized steel on the under carriage and drives.
• S/ Steel bolts and fixtures on all tea contacts points.
• Food quality S/ Steel dimpled tray (AISI 304)
• Heavy duty construction of machine ensures trouble free, high quality sorting and reliability.
The mechanism is designed for effective removal of fibre in CTC and orthodox teas after the dryers. Fitted with food grade PVC rollers moving at very slow speeds for effective picking of fibre.
The m mechanism contains a s low s peed sorter, which s ayes teas while traveling on the screen from shuffling and loosing bloom. The trays, chutes and hoppers are all made of food grade S/Steel AISI 304. Bubble tray with cross hatch for easier flow of tea. Hoppers come with feed hopper - 5 mesh of stainless steel and a discharge hopper - 10 mesh also of stainless steel.
My invention is illustrated in the accompanying drawings in which:-
Fig 1 is a side view section of the machine, which shows the setup of the rollers, drives, hoppers and single point adjustment arm.
Fig 2 is the top view of the machine showing the layout of the PVC rollers and the tapered feed hopper.
Fig 3 is detailed side view of the single point adjustment arm in relation to the PVC roller.

Fig 3 is a detailed side view of the single point adjusting arm showing the “arc“that the adjusting arm moves through.

Fig 5 is the top view of the undercarriage of the machine showing the rubber bushing and 20 brackets.
Fig 4 is top, side and front view of the feed hopper showing the taper design.
Referring to Fig 1:-

1 is the taper feed hopper in which the black tea out of the drier discharges which has Mesh No.5 to remove the balls into chute 2 for collection separately. The remaining tea falls out of the hopper 1 onto the bed of the machine 3 which is moved via the crank mechanism in an oscillating movement connected onto the cushioned undercarriage 5, connected to the bed of the machine by the rubber mounted oscillating arms 6. The tea then travels the length of the bed going under the rollers 7 attached to the single point adjustment arms 8. The fibre collected from the rollers is collected from the rollers into chute 9 for discharge on the side. At the end section of the bed is another mesh 10, which further sorts the tea before going onwards.
Referring to Fig 2:-
1 is the top view of the feed hopper in which the ex-drier black tea is discharged and the ball collected in chute 2. 3 is the stainless steel bed of the machine, which is a dimpled tray to allow for even distribution of the tea for effective fibre removal by the rollers 7.
11 shows the drive of the rollers encased in a suitable guard. The top view of the single
point adjusting arm 8 is shown in relation to the bed of the machine. The mesh 10 is located at the end section of the machine, which allows for further sorting before discharge to the next point.
Referring to Fig 3:-
The single point adjustment arm is shown clearly in relation to the PVC rollers 7. 12 is the frame holing the single point adjustment arm incorporating the mechanism holing the rollers in placel3, the back plate 14 and the spring loaded plate for fibre collection 15.
The chute 16 is also attached to the frame 12. 17 is the hinge point of the frame allowing the mechanism of the single point adjustment arm. The single point adjustment arm 8 allows for the up and down movement 18 of the roller from one side regardless of the adjustment feature.
Referring to Fig 3:-
Point A is the fulcrum or point of fixture on which the frame holding the arm 14 is mounted. The movement of arc XY is related to the length AC at the point A regardless of the physical feature B. The frame 14 moves in an up and down movement through the arc XY. The arm B is a rigid frame braced between the rollers to give a similar movement and make sure the roller is parallel to the bed plate at all times.
 
Referring to Fig 5:-
Shows the undercarriage 5 of the machine in detail. The cushioned pipe work 19 is attached to the crank mechanism 4 by a conrod arm 20 to facilitate the oscillating movement of the machine. The rubber bushing 21 is bolted 22 to the frame of the machine connecting through the oscillating arm 6. 23 shows the side view of the cushioned undercarriage fitting into the frame of the machine.
Referring to Fig 4 :-
The to view of the tapered feed hopper 1 is shown in greater detail to emphasize the divider 24 which allows for even distribution of the tea to the bed of the machine. The side view shows the balls discharge chute 2 and the side view of the feed hopper pouring onto the bed 3. 24 is a cross section of the dimpled stainless steel bed tray to facilitate even spread of the tea for effective fibre removal. The front view shows a cross section of the feed hopper giving the points of the mesh 25, the chute 2, the divider 24 and the discharge of the tea onto the bed 3.

 
CLAIMS
1. An ADJUSTMENT ARM BRACKET for a tea sorting machine characterized by the following:
The adjustment arm bracket complete with the frame can be adjusted from one side. The bracket not only assists in cross parallel alignment, but also helps in securing the stainless steel plate which holds the spring hinged plate which has the felt pad fixed onto it, simplifying the concept of fibre removal from the roller.
• An adjustment arm bracket complete with frame that can be adjusted from one side. The bracket not only assists in cross parallel alignment, but also helps in securing the stainless steel plate which holds the spring hinged plate which has the felt pad fixed onto it, simplifying the concept of fibre removal from the roller.
• The movement of the single point adjustment arm is an arc movement XY moving from point A as the fulcrum and point C as the moving part, regardless of the physical features at B.
• The length of point A to point C as a radius AC is limitless, as the angle at feature 20    B is irrelevant to the physical feature.
• The adjustment screw at D is only needed at one side, irrespective of the way of adjustment (i.e. mechanical, electrical, hydraulically or any other means). The movement of arc XY is limitless depending only on the limitations of the adjusting screw D.
• The spring loaded back plate is fitted onto the frame B holding the roller and
houses the fibre removal felt which aids in the scrapping of the fibre from the rollers. It is mounted on the back plate and held stiff by means of a spring on each side which presses the felt onto the roller for easy extraction. The fibre collection chute is also mounted on the frame and moves in conjunction with the frame in an arc movement XY.
 
2. The apparatus in claim 1 incorporatinganCUSHIONED UNDERCARRIAGE also characterized by:
The under carriage has a fully cushioned drive on rubber mounted bushes which stops the machine from rattling itself to destruction.
• The formed pipe work holding the crank mechanism is fully supported by the bushes connected to the oscillating arms and the bed frame, and all the forces acting on the machine are transmitted into the oscillating arms.
• The pipe work is suspended from a central bracket, which is also cushioned and 10    rubber mounted.
•   The oscillating arms and the undercarriage are all bolted on the same bushing, providing a rigid yet fully cushioned or shock absorbing flexible unit.
• The undercarriage also comprises of the drive mechanism, which is simple yet effective in serving its purpose.
3. The apparatus in claim 1 incorporating a TAPERED FEED HOPPER also characterized by:
The feed hopper is tapered in shape with central dividers to facilitate the even distribution of tea onto the bed for effective fibre removal.
 
ABSTRACT
A simple method and a line for a means of effective fibre removal, from ex-drier teas and presorting for effective removal of fibre and large balls from the black tea. The feed hopper to the machine has a tapered design to facilitate even distribution of tea on the bed plate of the presorted. An improved presorting machine wherein is provided a dimpled stainless steel surface positioned adjacent to and below a set of PVC rollers moving at slow speeds, to facilitate maximum pick up of fibre, which are repositioned using a Single point adjustment
arm making it easier to adjust the up and down movement at a single point. The spring loaded plate attached to the fibre extractor rollers forms an even pressure on the roller ensuring maximum pick-up of fibre. The undercarriage is fully cushioned and mounted on rubber bushing providing a rigid yet fully cushioned or shock absorbing flexible unit.
The main features of the machine are:-
• The adjustment arm bracket complete with frame that can be adjusted from one side. The bracket not only assists in cross parallel alignment, but also helps in securing the stainless steel plate which holds the spring hinged plate which has the felt pad fixed onto it, simplifying the concept of fibre removal from the roller.
• The single point adjustment arm is fixed at point A which is the fulcrum for the movement in the arc XY. The adjustment screw is irrelevant as is the physical feature B which is the frame holding the roller. The length of point AC is limitless from 1mm to infinity. The arc XY is also limitless only limited by the adjustment screw. The movement of XY is related to the length of AC at the point A.

• The cushioned undercarriage which is rubber mounted, providing a rigid yet fully cushioned or shock absorbing flexible unit. The undercarriage also houses the drive mechanism.
• The taper feed hopper which has centrally placed dividers which facilitate the flow of tea to give an even distribution on the bed for effective and maximum fibre removal.

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