inside barrel, cylinder, or core is required to revolve in the opposite direction to the revolution of the outside barrel or cylinder. Motive-power must accordingly be applied to the pulley to effect this object.

“(c.) Between the outer edges of the brush attached to the inside barrel, cylinder, or core and the outer edge of the brush attached to the outside barrel or cylinder a space must exist through which the gum passes. This space varies in size according to the size or class of gum to be cleaned, and the variation is arrived at by the insertion of smaller or larger inside brushes, cylinder, or cores, according to requirement. The gum is placed in the machine at the top door or opening of the outside barrel, and falls into the space between the faces or outer edges of the two brushes. Whilst the machine is being filled with the gum the outer barrel or cylinder is stationery, but the inside barrel, cylinder, or core is caused to revolve, thereby drawing the gum round into the space between the brushes of the two cylinders. When the machine is fully charged, or the space filled, the door or opening is closed and the motive-power then applied to the outside barrel or cylinder, to cause it to revolve in the opposite direction to the inside barrel, cylinder, or core. The brushes of the two barrels, cylinders, or cores revolving in opposite directions with the kauri-gum in the space between causes the cleaning of such gum. When the cylinders have sufficiently revolved the machine is emptied by opening the door of the outside barrel and allowing the same to come round to the bottom of the cylinder, when the outside barrel or cylinder is made stationery and the inside cylinder caused to slowly revolve, by means of which the gum will be emptied out of the door or opening and fall into receptacles placed to receive the same.

“(d.) The ends of the outside barrel or cylinder are, and the outer circumference thereof may be, perforated, in order to allow of the escape of the dust or dirt brushed from the gum in the course of cleaning.

“(e.) The door or opening at the top of the outside barrel or cylinder may be continued or prolonged to the full length of the same, and be of any width desired, or may be placed at the end in lieu of the top.”

7. By inserting the word “outside” immediately before the word “barrel” in line 25.

8. By inserting the words “or cylinder” immediately after the word “barrel” in lines 25, 32, 39, 40, and 49.

9. By crossing out the words “hung on hinged straps and fastened down with thumb-screws” in lines 33 and 34, and inserting instead the words “or opening.”

10. By inserting the word “barrel” immediately after the word “internal” in line 41.

11. By crossing out the words “of core or drum” in line 43, and inserting in place thereof the words “barrel or cylinder.”

12. By crossing out the word “of” in line 44.

13. By inserting at the end of line 44 the words “or core.”

14. By inserting the words “attached to the inside and outside barrels or cylinders” after the word “brushes,” in line 50.

15. By striking out the words “core or” before the word “internal,” and the word “or” before the word “drum,” in line 51, and inserting the words “or core” at the end of such line.

16. By inserting after the word “door,” in line 52, the words “or opening.”

17. By striking out the paragraphs numbered 1, 2, 3, and 4, with such numbers, and inserting instead the following, viz.: “The machine is of utility, inasmuch as the same will clean and improve the appearance and quality of kauri-gum, especially that class of gum which is now considered to be too small to be treated by hand-labour.”

18. By striking out the present claim, and inserting instead the following, viz.:-

“(a.) The combination of brushes attached to the inside of an external barrel or cylinder and the outer circumference of a smaller internal cylinder or core, such internal cylinder revolving when motive-power is applied in an opposite direction to the external barrel or cylinder, such brushes having spaces between each other varying as required, and being constructed of wire made of steel or any other suitable metal tempered to an extent sufficient to enable them from time to time, after adapting themselves to the gum when being passed through the space between the outer edges of the two brushes, to return again to their vertical position.

“(b.) The combination of two brushes constructed of wire made of steel or other suitable metal tempered to the extent set out in the preceding paragraph hereof, a space varying as required between each brush, and each brush moving, on application of motive-power, in an opposite direction to the other, whether such brushes are attached to a circular body or not.”

The applicant states that his reason for the amendment is as follows, viz: “In order to make the nature of the invention more explicit, the amendment being lodged by way of explanation.”

C. J. A. HASELDEN,

Registrar of Patents, Designs, and Trade-marks.

Notice of Request to amend Specification.

Patent Office,

Wellington, 21st July, 1892.

A REQUEST to be allowed to amend the specification relating to the under-mentioned application for letters patent has been received, and is open to public inspection at this office. Any person may, at any time within one month from the date of this Gazette, give me notice, in writing, in duplicate, of opposition to the amendment, stating in such notice the particular grounds of his objection. A fee of 10s. is payable with such notice:-

No. 4320.-GEORGE GETTINGS, of Onehunga, Auckland, New Zealand, Engineer and Iron-worker. An invention for an improved heating and annealing furnace by the use of atmospheric gas, with an improved bottom or bed for sheet-furnace, and for combining both operations in one furnace; to be termed “An Atmospheric-gas Combination Heating and Close-annealing Furnace.”

The nature of the proposed amendments are as follows, viz.: By striking out-

1. All the words in the title, where it occurs, from and including the words “by use of atmospheric gas” to the end.

2. The words “under door-plate of heating-chamber front” in lines 39 and 40.

3. The words, &c., “across the mouth of heating-chamber C C, down flue D, under flue-bridge E, through aperture I in the wall of flue F, Figs. I. and II., up side of heating-chamber,” in lines 62 to 66.

4. All the words in brackets in lines 69, 70, and 71.

5. The two first claims-“a” and “b.”

The applicant states that his reasons for the amendments are as follows, viz: “To simplify the specification in order that the subject-matter of the same may be more easily understood, and to better define what is claimed.”

C. J. A. HASELDEN,

Registrar of Patents, Designs, and Trade-marks.

Letters Patent sealed.

LIST of Letters Patent sealed, from the 8th July, 1892, to the 21st July, 1892, inclusive:-

No. 4802.-J. W. Ffrost, ink-pad.

No. 5120.-F. Luck, loading vehicles.

No. 5258.-T. C. Hodgkinson and H. T. Tompsitt, electro-medical apparatus.

No. 5473.-G. T. Beilby, manufacture of cyanides.

No. 5489.-F. Teague, electricity meters.

C. J. A. HASELDEN,

Registrar of Patents, Designs, and Trade-marks.

Letters Patent lapsed.

LIST of Letters Patent lapsed through non-payment of renewal-fee, from the 8th July, 1892, to the 21st July, 1892, inclusive:-

No. 2295.-E. Waters, barrel. (H. Wessel.)

No. 2296.-J. H. Bebro, printing tickets. (M. Bebro.)

No. 2300.-J. Welman, dredging.

No. 2302.-J. H. Mackie, vehicles.

No. 2304.-J. Seed and H. A. Flatman, hanging sashes, &c.

No. 2305.-S. Hardley, washing-machine.

No. 2306.-R. P. Gibbons, steam-boilers.

No. 2307.-R. Tudehope, ventilating and deodorising.

No. 2308.-R. Tudehope, ventilator.

C. J. A. HASELDEN,

Registrar of Patents, Designs, and Trade-marks.

Applications for Letters Patent lapsed.

LIST of applications for Letters Patent (with which complete specifications have been lodged) lapsed, from the 8th July, 1892, to the 21st July, 1892, inclusive:-

No. 4806.-J. B. Poynter, calculating-machine.

No. 4807.-W. J. Alexander, advertising.

No. 4815.-M. McDermott and R. Hall, liquid blue.

C. J. A. HASELDEN,

Registrar of Patents, Designs, and Trade-marks.

Subsequent Proprietors of Letters Patent registered.

LIST of subsequent proprietors of Letters Patent, by assignment, registered (the name of the patentee is given in brackets, and the date of registration at the end):-