GB2235753A - Adjustable powder measure - Google Patents

Adjustable powder measure Download PDF

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Publication number
GB2235753A
GB2235753A GB9018580A GB9018580A GB2235753A GB 2235753 A GB2235753 A GB 2235753A GB 9018580 A GB9018580 A GB 9018580A GB 9018580 A GB9018580 A GB 9018580A GB 2235753 A GB2235753 A GB 2235753A
Authority
GB
United Kingdom
Prior art keywords
powder
adjustable
tube
transparent
powder measure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB9018580A
Other versions
GB9018580D0 (en
GB2235753B (en
Inventor
Peter Durward Cooper
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB898920172A external-priority patent/GB8920172D0/en
Application filed by Individual filed Critical Individual
Priority to GB9018580A priority Critical patent/GB2235753B/en
Publication of GB9018580D0 publication Critical patent/GB9018580D0/en
Publication of GB2235753A publication Critical patent/GB2235753A/en
Application granted granted Critical
Publication of GB2235753B publication Critical patent/GB2235753B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/10—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation
    • G01F11/26—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation wherein the measuring chamber is filled and emptied by tilting or inverting the supply vessel, e.g. bottle-emptying apparatus
    • G01F11/261—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation wherein the measuring chamber is filled and emptied by tilting or inverting the supply vessel, e.g. bottle-emptying apparatus for fluent solid material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B33/00—Manufacture of ammunition; Dismantling of ammunition; Apparatus therefor
    • F42B33/02—Filling cartridges, missiles, or fuzes; Inserting propellant or explosive charges
    • F42B33/0285—Measuring explosive-charge levels in containers or cartridge cases; Methods or devices for controlling the quantity of material fed or filled
    • F42B33/0292—Measuring explosive-charge levels in containers or cartridge cases; Methods or devices for controlling the quantity of material fed or filled by volumetric measurement, i.e. the volume of the material being determined before filling
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/10—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation
    • G01F11/26—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation wherein the measuring chamber is filled and emptied by tilting or inverting the supply vessel, e.g. bottle-emptying apparatus
    • G01F11/268—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation wherein the measuring chamber is filled and emptied by tilting or inverting the supply vessel, e.g. bottle-emptying apparatus with provision for varying the volume to be delivered

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Basic Packing Technique (AREA)

Abstract

The adjustable powder measure is designed to effect the reloading of firearm cartridge cases. It comprises a main body in the form of a transparent powder container 6 with a transparent centre tube 7 able to slide inside the container and powder contents. Measuring and dispensing is viewed through the transparent components. The friction fit plug 8 is adjusted to obtain the desired volume by insertion of a graduated rod 10 into the bore of the centre tube. A reprimed cartridge case 1 is attached to the transparent pliable end tube 2, the powder measure being held vertically with the cartridge case at the top. The centre tube is drawn below powder level, filling the measuring cavity above the friction fit plug. The centre tube is then pushed through a sealing washer 4. Inverting the powder measure allows only the cavity contents to drop into the cartridge case. <IMAGE>

Description

ADJUSTABLE POWDER MEASURE This invention relates to an adjustable powder measure and, more especially, this invention relates Xto an adjustable powder measure for use in reloading reprimed cartridge cases with explosive powder. The adjustable powder measure is designed to effect the reloading of reprimed firearm cartridge cases by measuring explosive powders by volume, volume being directly related to load in weight.
Known powder measures which are available vary from plastic scoop sets in which each scoop is of a fixed measure, to complex lever operated machines. The plastic scoop sets used with an open tray of powder are prone to problems of powder spillage and they necessitate the handling of four items, that is the tray of powder, the scoop, a funnel and a cartridge case. The lever operated machines, although adjustable, are expensive and they require bench mounting.
It is an aim of the present invention to provide an adjustable powder measure in which the above problems are obviated or reduced.
Accordingly, this invention provides an adjustable powder measure for use in reloading reprimed cartridge cases with explosive powder, which adjustable powder measure comprises a transparent powder container, a transparent tube which is adapted to slide axially in the transparent powder container and which has a tube bore which is provided with a variable measuring cavity for extracting a measured portion of powder during vertical axial movements, and sealed and transparent dispensing means for dispensing the measured portion of powder into a cartridge case upon inversion of the adjustable powder measure.
The adjustable powder measure of the present invention is preferably constructed from transparent static free plastic material. The measuring and dispensing of powder is viewed through the transparent components and is able to take place under totally enclosed conditions. Only one item is handled, namely the powder measure with the cartridge case attached.
The use of plastic materials enables the adjustable powder measure ideally to be produced by injection moulding techniques.
An embodiment of the invention will now be described solely by way of example and with reference to the accompanying drawings in which: Figure 1 shows in section an adjustable powder measure with a variable measuring cavity sealed off from a main body interior, and with a graduated adjusting rod inserted into a centre tube bore; Figure 2 shows in section the adjustable powder measure with the variable measuring cavity below powder level and the graduated adjusting rod alongside; and Figure 3 shows an end elevation of the adjustable powder measure.
The general operation of the adjustable powder measure shown in the drawings is as follows.
Referring to the drawings, the adjustable powder measure comprises a main body in the form of a transparent powder container 6 with a transparent centre tube 7 able to slide axially inside the container 6 and its powder contents. A first guide means in the form of a base guide means 9 is used for axial control. A friction fit plug 8 is adjusted to obtain the desired volume by insertion of a graduated rod 10 into the bore of the centre tube 7. A reprimed cartridge case 1 is attached to a transparent pliable end tube 2, the powder measure being held vertically with the cartridge case 1 at the top. The variable measuring cavity fills with powder when drawn below powder level. A catchment lug 11 on the tube prevents separation of the tube from the container 6 when powder is at a low level.Pushing the centre tube up through second guide means in the form of a top guide hollow taper 5 and through a sealing washer 4 causes isolation of the variable measuring cavity contents from the container contents. A main body tubular cap 3 arrests upward movement of the tube.
The cartridge case 1 receives the variable measuring cavity contents upon inversion of the powder measure. All operations are viewable through the transparent components.
The detailed operation of the adjustable powder measure as shown in the drawings is as follows.
1. Hold the powder measure by the container 6 and using the graduated adjusting rod 10, set the friction fit plug 8 to obtain the position for the measured volume by pushing the plug 8 up the centre tube 7 from the open bottom end of the bore, reading off the scale for the desired load against the centre tube end. Remove the graduated adjusting rod 10.
2. Unscrew and remove the main body tubular cap 3 complete with the pliable end tube 2, storage blank 12 and sealing washer 4.
3. Retract the centre tube 7 to the maximum powder level mark on the container 6.
4. Insert a small funnel into the container 6 using the hole through the top guide taper 5.
5. Pour in powder from the manufacturer's container, filling the container 6 up to the maximum powder level mark.
6. Replace the main body tubular cap 3 complete with the pliable end tube 2, storage blank 12 and sealing washer 4.
7. Remove the storage blank 12 from the pliable end tube 2 and replace it with a reprimed cartridge case 1.
8. Hold the powder measure by the container 6 in a vertical position with the cartridge case 1 at the top.
9. Draw down the centre tube and observe that the top end of the tube is one centimetre or more below powder level.
10. Tap on the container 6 with the forefinger to shake the powder into the variable measuring cavity.
11. Push the centre tube up clear of the powder level and tap gently on the container 6 and observe the removal of surplus powder from the top of the variable measuring cavity.
12. Push the centre tube up into the sealing washer 4 until it will travel no further, thus sealing off the measured load from the main body powder contents.
13. Invert the powder measure and observe that the manoed powder drops into the cartridge case 1.
14. Remove the cartridge case 1 and stand it in a safe place ready to be fitted with a bullet.
15. Fit another cartridge case 1 and repeat operations 8 to 14. Continue reloading until the powder reaches a low level and then reffli the powder measure.
It is to be appreciated that the embodiment of the invention described above with reference to the accompanying drawings has been given by way of example only-and that modifications may be effected.

Claims (12)

1. An adjustable powder measure for use in reloading reprimed cartridge cases with explosive powder, which adjustable powder measure comprises a transparent powder container, a transparent tube which is adapted to slide axially in the transparent powder container and which has a tube bore which is provided with a variable measuring cavity for extracting a measured portion of powder during vertical axial movements, and sealed and transparent dispensing means for dispensing the measured portion of powder into a cartridge case upon inversion of the adjustable powder measure.
2. An adjustable powder measure according to claim 1 and including calibration means for adjustment of the variable measuring cavity.
3. An adjustable powder measure according to claim 1 or claim 2 and including first guide means which is provided at the base of the powder container remote from the dispensing means in order to control axial movements of the tube.
4. An adjustable powder measure according to any one of the preceding claims and including catchment means which is provided adjacent the variable measuring cavity for arresting downward axial movement of the tube.
5. An adjustable powder measure according to claim 3 and claim 4 in which the catchment means is adapted to co-operate with the first guide means to prevent separation of the tube from the powder container.
6. An adjustable powder measure according to claim 5 and including second guide means which is provided inside the top of the container remote from the first guide means in order to centralize upward axial movement of the tube.
7. An adjustable powder measure according to claim 6 and including sealing means which is provided adjacent the second guide means to isolate the contents of the variable measuring cavity from the contents of the powder container during use of the adjustable powder measure.
8. An adjustable powder measure according to claim 7 and including a tubular cap which is provided at the powder container top adjacent the sealing means.
9. An adjustable powder measure according to claim 8 in which the tubular cap is adapted to arrest upward axial movement of the tube.
10. An adjustable. powder measure according to claim 9 in which a transparent pliable tube is provided on an outlet part of the tubular cap.
11. An adjustable powder measure according to claim 10 in which the transparent pliable tube outlet is adapted to retain a cartridge case.
12. An adjustable powder measure substantially as herein described with reference to the accompanying drawings.
GB9018580A 1989-09-06 1990-08-24 Adjustable powder measure Expired - Fee Related GB2235753B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9018580A GB2235753B (en) 1989-09-06 1990-08-24 Adjustable powder measure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898920172A GB8920172D0 (en) 1989-09-06 1989-09-06 Adjustable powder measure
GB9018580A GB2235753B (en) 1989-09-06 1990-08-24 Adjustable powder measure

Publications (3)

Publication Number Publication Date
GB9018580D0 GB9018580D0 (en) 1990-10-10
GB2235753A true GB2235753A (en) 1991-03-13
GB2235753B GB2235753B (en) 1993-05-19

Family

ID=26295880

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9018580A Expired - Fee Related GB2235753B (en) 1989-09-06 1990-08-24 Adjustable powder measure

Country Status (1)

Country Link
GB (1) GB2235753B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999034854A1 (en) * 1998-01-03 1999-07-15 Innovata Biomed Limited Filling method
US8205614B2 (en) 1999-09-04 2012-06-26 Innovata Biomed Limited Delivery device
US8511302B2 (en) 2004-04-24 2013-08-20 Innovata Biomed Limited Dose counter mechanisms for medicament delivery devices
US8800550B2 (en) 2001-11-23 2014-08-12 Innovata Biomed Limited Medicament delivery assembly
US8851069B2 (en) 2004-04-21 2014-10-07 Innovata Biomed Limited Inhaler

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB461622A (en) * 1935-08-17 1937-02-17 William Farquharson Ireland Improved measuring, separating or dispensing device for use with containers for liquid, powdered or granulated material or material in the form of relatively small crystals
GB837681A (en) * 1956-11-28 1960-06-15 Theodor Jacob Dispenser for granulated materials such as sugar
GB1495805A (en) * 1974-06-17 1977-12-21 Sigma Tau Ind Farmaceuti Device for dispensing a liquid or a powder from a container
WO1982002768A1 (en) * 1981-02-02 1982-08-19 Seung Gyu Kim Dispenser of granulated material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB461622A (en) * 1935-08-17 1937-02-17 William Farquharson Ireland Improved measuring, separating or dispensing device for use with containers for liquid, powdered or granulated material or material in the form of relatively small crystals
GB837681A (en) * 1956-11-28 1960-06-15 Theodor Jacob Dispenser for granulated materials such as sugar
GB1495805A (en) * 1974-06-17 1977-12-21 Sigma Tau Ind Farmaceuti Device for dispensing a liquid or a powder from a container
WO1982002768A1 (en) * 1981-02-02 1982-08-19 Seung Gyu Kim Dispenser of granulated material

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999034854A1 (en) * 1998-01-03 1999-07-15 Innovata Biomed Limited Filling method
US6675839B1 (en) 1998-01-03 2004-01-13 Innovata Biomed Limited Filling method
US8205614B2 (en) 1999-09-04 2012-06-26 Innovata Biomed Limited Delivery device
US8800550B2 (en) 2001-11-23 2014-08-12 Innovata Biomed Limited Medicament delivery assembly
US8851069B2 (en) 2004-04-21 2014-10-07 Innovata Biomed Limited Inhaler
US8511302B2 (en) 2004-04-24 2013-08-20 Innovata Biomed Limited Dose counter mechanisms for medicament delivery devices

Also Published As

Publication number Publication date
GB9018580D0 (en) 1990-10-10
GB2235753B (en) 1993-05-19

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Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980824