An Improved Motor for Clocks and other Machines.
Year: 1889

page_text: Date of Application, 2nd Oct., 1889
Complete Specification Left, 28th June, 1890-Accepted, 2nd Aug., 1890
[Communicated from abroad by the Firm of FREISS and WALZER, of Bienne,
Switzerland, Manufacturers.]
An Improved Motor for Clocks and other Machines.
I, WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake & Co. Patent Agents,
Southampton Buildings, in the County of Middlesex, do hereby declare the nature
of this invention to be as follows:-
This invention relates to motors for clocks or other machines and is based upon the
combination of a fixed vertical screw and with a movable weight which works like a
screw nut and descends slowly along the screw under the influence of its own weight
revolving about its axis and transmitting motion by suitable means to the mechanism
which it is desired to operate.
The winding up of such motor, is effected by turning the aforesaid screw so as to
raise the weight to the upper end of the screw.
The said screw is combined with a ratchet and pawl which allows the same to be
turned in one direction for raising the weight but not in the other.
The improved motor comprises a frame formed of two horizontal plates connected
together by vertical pillars or a suitable case of any convenient shape and dimensions
in which is fixed a vertical screw having a bearing in the upper plate and a similar
bearing in the lower plate of the frame.
The said screw has a square end upon which is affixed a ratchet wheel and which
may be combined either with a key or with a winding up mechanism of any kind.
The screw is further provided with shoulders near the top and bottom on which are
arranged dises which are connected to each other by means of three or more vertical
rods. The weight which is preferably of lead is arranged between the said dises and
surrounds the screw. The said rods pass through the weight so that the said discs
always rotate with the said weight.
In the central hole of the weight is placed a ring having three or more horizontal
pivots arranged radially and each provided with a roller which is preferably conical
and which are intended to roll upon the upper surface of the screw threads which are
also preferably of a conical shape. These rolls being arranged to bear upon the threads
of the screw allow the weight to move with very little friction around the said
screw.
The said ring is moreover provided with vertical rolls the object of which is to
diminish the lateral friction of the weight against the screw.
With the object of diminishing the friction of the weight against the rods the
said weight may be provided with one or more rollers which are arranged in the body
of the same.
The upper disc or in some cases the lower disc is provided with teeth around its
circumference which engages with a pinion attached to a wheel by which the clock-
work or other mechanism is operated.
The motor is operated as follows.
The screw is first turned by means of a key or of a winding up mechanism acting
upon the square part so as to raise the weight to the top of screw. The weight
then descends by its own weight, the rollers in the said weight bearing upon the threads
of the screw and the rods being moved by the weight cause the discs to rotate with
the said weight and to move the pinion and wheel with more or less velocity according
as the weight is beavy or light and according to the inclination of the screw threads
and the resistance of the mechanism acted upon by said wheel.
Dated this 2nd day of October 1889
-- ערד
д
HASELTINE, LAKE
45, Southampton Buildings, London, Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
An Improved Motor for Clocks and other Machines.
I WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
45 Southampton Buildings, in the County of Middlesex, do hereby declare the nature
of this invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement :—
The invention relates to motors for clocks or other machines and is based upon the
combination of a fixed vertical screw and of a movable weight which works like a
screw nut and descends slowly along the screw under the influence of its own weight,
revolving about its axis and transmitting motion by suitable means to the mechanism
which it is desired to operate.
The winding-up of such motor is effected by turning the aforesaid screw so as to
raise the weight to the upper end of the said screw.
The screw is combined with a ratchet and pawl which allows the same to be turned
in one direction for raising the weight but not in the other.
To enable the invention to be better understood I will now describe the same with
reference to the accompanying drawing which illustrates one construction of motor
by which my said invention may be carried into practice.
In the said drawing
Figure 1 is a front elevation of my improved motor.
Figure 2 is a side elevation of the same partly in section.
Figure 3 is a plan, and
Figure 4 a horizontal section on the line -y of Figure 2.
Similar letters of reference refer to the same parts in all the Figures.
The improved motor comprises a frame consisting of two horizontal plates A, B,
connected together by vertical rods T or it may consist of a case of any convenient
shape and dimensions in which is arranged a vertical screw S pivoted at a in the top
plate A, and at 6 in the bottom plate B.
The said screw S has a square end s upon which is fixed a ratchet wheel and which may
bo combined, either with a key or with a winding up mechanism of any kind. The
screw S is further provided with journals c and d adapted to work in bearings in the
discs Land L. which are connected together by means of three or more vertical
rods F.
The weight P which is preferably made of lead, is arranged between the said
discs Land L, and surrounds the screw S. The rods F pass through holes in the
said weight P so that the discs L and L' always rotate with the said weight. In the
central hole of the said weight is arranged a ring H provided with three or more
horizontal pivots disposed radially and each having a roller R which is preferably
made conical and which roll upon the upper surface of the screw thread also preferably
made conical. The said rolls R'being so arranged as to bear upon the thread of the
screw will allow the weight P to move around the same with very little friction in the
same manner as an ordinary screw-nut.
The said ring H is moreover provided with vertical rolls X for the purpose of
diminishing the lateral friction of the weight P against the screw S.
For the purpose of diminishing the friction between the weight P and the rods F
the said weight may be provided with one or more rolls arranged in cavities in the
body of the said weight.
The upper disc L (or in some cases the lower disc L) is provided with teeth around
its circumference which engages with the teeth of a pinion attached to a wheel V by
which the clock-work or other mechanism is operated.
The rollers X and R may be replaced by balls of suitable material arranged one
half in suitable threads-cut in the screw shaft S and one half in suitable recesses in
the ring H or weight P.
The improved motor is operated as follows :-
:-
The screw 'S is first turned by means of a key or a winding-up mechanism acting

page_text: screw.
upon the square ends of the screw so as to raise the weight P to the top of the said
The weight P then descends by its own weight, the rollers R and bearing
upon the threads of the screw S and the rods F, being moved by the weight P causes
the discs L and L to rotate with the said weight and to rotate the pinion Z and
wheel V with a greater or less velocity according as the weight is heavy or light and
according to the inclination of the screw threads and the resistance of the mechanism
acted upon by said wheel V.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed as communicated to me
by my foreign correspondents, I declare that what I claim is :-
First. A motor for clocks and other machines consisting of a vertical screw and a
weight arranged like a screw nut around the said screw and descending with a slow
rotary motion under the influence of its own weight and transmitting motion by any
suitable means to the mechanism which it is intended to operate.
Second. The combination of a fixed frame, case or box with a screw S and a weight P,
the latter working like a screw nut around the said screw which is so arranged that it
can be turned in one direction for raising the weight but not in the other substantially
as shown and described and for the purpose specified.
Third. The combination of the weight P with the rollers R, and the rollers X,
or with suitable balls substantially as shown and described and for the purpose
specified.
Fourth. The combination of the screw S the weight P rotating frame LF LI, rollers
or rolls R, X or balls and the pinion Z substantially as shown and described and for
the purpose specified.
نيتى
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.
fen maz S D