anENTIRELY NEW AND PAR- TICULAR KIND OF REPEATER OR REPEATING WATCH, OF A PECULIAR AND MUCH MORE SIMPLE CONSTRUCTION THAN ANY INVENTION OF THE LIKE NATURE HITHERTO FOUND OUT, AND WOULD, AS I HUMBLY CONCEIVED, BE MUCH MORE USEFUL AND ADVAN- TAGEOUS TO THE PUBLIC THAN ANY OTHER INVENTION OR DISCOVERY OF THE LIKE NATURE
Year: 1772

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ROBERT
WEBSTER, of Whitby, in the County of York, Watchmaker, send greeting.
WHEREAS His present most Excellent Majesty King George the Third,
by His Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Thirty-first day of July, in the twelfth year of His reign,
reciting that I, the said Robert Webster, had, by my Petition, humbly repre-
sented unto His said Majesty, that with great trouble, and much study, labor,
and application, I had found out and invented an "ENTIRELY NEW AND PAR-
TICULAR KIND OF REPEATER OR REPEATING WATCH, OF A PECULIAR AND MUCH
MORE SIMPLE CONSTRUCTION THAN ANY INVENTION OF THE LIKE NATURE HITHERTO
FOUND OUT, AND WOULD, AS I HUMBLY CONCEIVED, BE MUCH MORE USEFUL AND ADVAN-
TAGEOUS TO THE PUBLIC THAN ANY OTHER INVENTION OR DISCOVERY OF THE LIKE
NATURE," and praying His Majesty's Letters Patent for the sole making,
using, and vending my said Invention of a Repeater or Repeating Watch, as
aforesaid; in consequence of which His said Majesty did, by His said Letters
Patent, give and grant unto me, the said Robert Webster, my executors,
administrators, and assigns, His special licence, full power, sole priviledge and
authority, that I should and might make, use, receive, and vend my said
Invention within that that part of Great Britain called England, the Dominion
of Wales, and Town of Berwick-upon-Tweed, for and during the term of
fourteen years from the date of the said Letters Patent; in which said Letters
Patent is contained a proviso that if I, the said Robert Webster, shall not

page_text: particularly describe and ascertain the nature of my said Invention, and in what
manner the same is to be performed, by an instrument in writing under my
hand and seal, and cause the same to be inrolled in His Majesty's High Court
of Chancery within four calendar months next and immediately after the date
of the said Letters Patent, that then the said Letters Patent, and all liberties
and advantages whatsoever thereby granted, shall utterly cease, determine,
and become void, as in and by the said Letters Patent, relation being thereunto
had, may more fully and at large appear.
NOW KNOW YE, that I, the said Robert Webster, in compliance with the
said proviso, do hereby describe and ascertain the nature of my said Invention,
and in what manner the same is to be performed, by the Plan or particular
thereof hereunto annexed.
In witness whereof, I, the Robert Webster, have hereunto set my hand
and seal, this Seventeenth day of November, in the thirteenth year of
His said Majesty's reign, and in the year of our Lord One thousand
seven hundred and seventy-two.

page_text: watches to
govern
of twelve points
under the quarter snail and hour wheel in the cercler C. the quarter snail (shewn in Fig 3 th is rivetted on the
cannon pinion B. D. The minute wheel in which the cannon pinion B. runs. E The minute wheel pinion F' The
hour wheel in which the minute wheel pinion I uns (note) These two wheels & pinions are in all plam minut
the hands) G. The Bridge which is planted concentrically over the hour Wheel F. II the Star Wheel
II. the Jumper and its Spring. K. The helix or Snail with twelve steps : LIL. The r
quarter rack N. the quarter rack Spring 0 the movable have rack tout P the hack spring Q.Q. the Quarter hammer
tails. R.R. the quarter hammer tail Springs S. the hour hammer tail Spring. - These Springs R.R. and S.
are to keep the hammer tails upon the heaving pins which are represented by dots at the outer end of the holes I. I.
"T" the ratchet . V . The ratchet Spring of click. V. the large pinion is parallel in the plate A.A.A.A.
derical socket & millid head that is screwd on the arbor of the pinion V. -
-
Fig: 4th
W. W. The cilin -
A.A.A.A. The under side of the pillar plute B. B.B. The pillars.C.C. The hammers D. D. the hammer Springs
E. E . The counter springs. V. The large pinion as shewn in Fig 14. F. F. F. The Cocks in which the pinion V. moves
and has liberty to pump. & the Pump Spring II. the arbor of the pinion l' on which the cilinderical socket with mill'd head W.W.
is screw'd.
Fig 5th
a. a. u. The hour rack & striking piece 6.6 Twelve Steel Teeth c. c. c. contrate Teeth. d. The fix'd hour rack tail e. e. a
hole f The quarter lifting part. g. g. The Spiral Spring..
long curved
then
The above being only
an explanation of the different parts what remains undescribed is the action which is as follows (viz!) The
rack & striking piece a a a moves concentrically on the Bridge G V is carried by the pinion V which uns in the contrale teeth c.c.c. The outer and
of the Spiral Spring 9.g. is fix'd on the Stud 2 which is screw'd through the foot of the Bridge G. The miner end is fix'd on the socket of y? hour
rack & shiking piece u.a. a. The pinion V. being push'd with the thumb at W & feed from the contrate teeth c.c.c the Spiral Spring g.g
throws back the rack & striking piece a. a. a. till the fix'd rack tail à comes in contact with the moveable tail 0 8 drives
it to the step of the helix or Snail II. the hour it's to repeat. By the same push the quarter rack I.I.L. is carried by its
This
bemy
Spring N. to the step of the sail C. (which is placed under the hour Wheel F.) the quarters it's to repeat
performed puts the work in a position for repeating which is easily affected by turning the mill'd head W. with the finger
If thumb. This causes the Steel Gooth 6.6 of the rack I striking piece a a a. to take hold of the upper hammer tail 5 which
now repeated the quarters
appears in Fig 1th to lay hold of the quarter rack but it does not as above it The hour being
-begin at the lifting part of in the hour rack I striking piece a. a. a. I acts upon the pin 4 in the quarter rack L L . L. &
carries it against the stop 5. The rack Spring & Click V. is to prevent the hour rack and striking price
fumming back..
In half quarter repeaters there's to be a
half quarter Snail which is to be placed on
it act
^
-
a. a.a
from
-slip tooth & tail placed on the quarter rack tail I. which falls on a
ye quarter Snail Grig: 3rd